Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| spontaneous adrenal and hepatic myelolipomas in the common marmoset. | myelolipomas occurring simultaneously in the adrenal and liver were found in a 2.7-yr-old, bred female common marmoset (callithrix jacchus). the animal bore single adrenal and multiple hepatic myelolipomas. the adrenal myelolipoma consisted of mature adipose cells and focal collections of normal hematopoietic elements and was unencapsulated. in the liver, the myelolipomas, which were partially encapsulated, included a large amount of hematopoietic tissue and adipose cells that resembled normal b ... | 2017 | 7817133 |
| effects of bifemelane on parkinsonism induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (mptp) in the common marmoset. | the effects of bifemelane on parkinsonism were shown in mptp-treated common marmosets. the administration of bifemelane increased locomotor activity in mptp-treated marmosets but not in normal control marmosets. in a microdialysis study, extracellular levels of dopamine and its metabolites increased following the administration of bifemelane. these results indicate that it is worth studying the effects of bifemelane hydrochloride on patients with parkinson's disease. | 1994 | 7816348 |
| evolution of alanine:glyoxylate aminotransferase 1 peroxisomal and mitochondrial targeting. a survey of its subcellular distribution in the livers of various representatives of the classes mammalia, aves and amphibia. | as part of a wider study on the molecular evolution of alanine:glyoxylate aminotransferase 1 (agt1) intracellular compartmentalization, we have determined the subcellular distribution of immunoreactive agt1, using postembedding protein a-gold immunoelectron microscopy, in the livers of various members of the classes mammalia, aves, and amphibia. as far as organellar distribution is concerned, three categories could be distinguished. in members of the first category (type i), all, or nearly all, ... | 1994 | 7813517 |
| marmoset (callithrix jacchus jacchus) spatial memory in a foraging task: win-stay versus win-shift strategies. | the spatial memory of common marmosets (callithrix jacchus jacchus) was explored in 3 experiments with a simulated foraging task. in experiment 1, individual monkeys foraged among 8 baited food sites. they appeared to use spatial memory to accurately avoid revisiting previously depleted sites. there was no difference in accuracy between the adult monkeys and a juvenile monkey tested on the same task. in experiment 2, a win-stay paradigm was used. the adult monkey subject very accurately remember ... | 1994 | 7813192 |
| social and reproductive influences on plasma cortisol in female marmoset monkeys. | subordinate female common marmosets (callithrix jacchus) undergo ovulation suppression and exhibit low plasma cortisol levels compared to the dominant, breeding female. to determine whether this cortisol difference is mediated by the differential reproductive consequences of social status, we monitored plasma progesterone and cortisol in 32 adult female marmosets while they were housed in heterosexual pairs, during the first 3 days of heterosexual group formation, and while animals were housed i ... | 1994 | 7800752 |
| control of lipolysis in intra-abdominal fat cells of nonhuman primates: comparison with humans. | the mechanisms that control lipolysis in intra-abdominal fat cells from various primate species, the marmoset (callithrix jacchus), the baboon (papio papio), and the macaque (macaca fascicularis), were compared to those of human intraabdominal fat cells. selective beta 1- or beta 2-adrenoceptor agonists induced lipolysis in all species. selective beta 3-agonists (brl 37344, cl 316243, and sr 58611) acted as partial agonists in marmoset but were inefficient in other primates, including humans. al ... | 1995 | 7775857 |
| quantitative receptor autoradiography of eight different transmitter-binding sites in the hippocampus of the common marmoset, callithrix jacchus. | the regional and laminar distributions of eight different transmitter-binding sites were measured in the marmoset hippocampus by means of quantitative in vitro receptor autoradiography. receptors for 5-ht1, l-glutamate, n-methyl-d-aspartate (nmda) and gabaa were similarly distributed. the highest concentrations of these receptors were found in the pyramidal layer of ca1 and the molecular layer of the dentate gyrus. the 5-ht2 receptors showed the highest concentrations in the oriens layer of ca2. ... | 1995 | 7771684 |
| the differential behavioural effects of benzazepine d1 dopamine agonists with varying efficacies, co-administered with quinpirole in primate and rodent models of parkinson's disease. | the effects of co-administration of quinpirole with benzazepine d1 dopamine (da) agonists possessing full/supramaximal (skf 80723 and skf 82958), partial (skf 38393 and skf 75670) and no efficacies (skf 83959) in stimulating adenylate cyclase (ac) were investigated in rodent and primate models of parkinson's disease (pd). in rats with a unilateral 6-hydroxydopamine (6-ohda) lesion of the medial forebrain bundle, co-administration of skf 38393 (7,8-dihydroxy-1-phenyl-2,3,4,5-tetrahydro-1h-3-benza ... | 1995 | 7770604 |
| differential anti-parkinsonian effects of benzazepine d1 dopamine agonists with varying efficacies in the mptp-treated common marmoset. | in common marmosets systemically treated with mptp (1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine), the behavioural effects of benzazepine d1 dopamine (da) agonists with full/supramaximal (skf 80723 and skf 82958), partial (skf 38393, skf 75670 and skf 83565) and no efficacies (skf 83959) in stimulating adenylate cyclase (ac) activity were investigated. the benzazepine derivatives, with the exception of skf 82958 (8 fold d1 da receptor selectivity), demonstrated high d1 da receptor affinity and s ... | 1995 | 7770603 |
| localisation of the high affinity facilitative glucose transporter protein glut 1 in the placenta of human, marmoset monkey (callithrix jacchus) and rat at different developmental stages. | in the present study, the facilitative d-glucose transporter protein glut 1 was localised by immunohistochemistry in the placenta of human, marmoset (callithrix jacchus) and rat at different developmental stages. a polyclonal antiserum against a 13-amino-acid peptide of the glut 1 carboxy terminus was used. it identified a protein of around 50 kda molecular weight in immunoblotting of the placental tissues. glut 1 was located in the syncytiotrophoblast, in cytotrophoblast cells and in fetal endo ... | 1995 | 7750136 |
| active and passively induced experimental autoimmune encephalomyelitis in common marmosets: a new model for multiple sclerosis. | a chronic relapsing-remitting form of experimental autoimmune encephalomyelitis was induced in the common marmoset callithrix jacchus following a single immunization with human white matter. individual animals in this species are born as natural bone marrow chimeras, allowing transfer of functional t-cell populations between genetically distinct siblings. the acute disease was characterized clinically by mild neurological signs. pathologically, the disease was characterized by perivascular monon ... | 1995 | 7717689 |
| behavioral and neurochemical consequences of ibotenic acid lesion in the subthalamic nucleus of the common marmoset. | five marmosets were unilaterally lesioned within the subthalamic nucleus (stn) by injection of 10 micrograms ibotenic acid. seven marmosets served as saline injected controls. the lesioned marmosets showed an increased locomotor activity, occasional tongue protrusions, posture asymmetry, and abnormal movements of the contralateral legs and arms. the animals were sacrificed 21 days after the ibotenic acid injection and markers of gamma-aminobutyric acid (gaba), dopamine (da), and acetylcholine we ... | 1995 | 7697384 |
| parcellation of the frontal cortex of the new world monkey callithrix jacchus by eight neurotransmitter-binding sites. | the most extensive development during primate brain evolution involves the cortex of the frontal lobe, especially its prefrontal region. the distribution of neurotransmitter receptors is unknown in this part of the cortex of new world monkeys. the respective distributions of eight different receptors for the transmitters l-glutamate (l-glu and nmda), gamma-amino-butyric acid (gabaa), noradrenaline (alpha 1), acetylcholine (m1 and m2) and serotonin (5-ht1 and 5-ht2) were therefore studied in cort ... | 1995 | 7677258 |
| effects of low doses of cholinesterase inhibitors on behavioral performance of robot-tested marmosets. | to investigate at which dose levels undesirable effects started, behavioural performance and several physiological parameters were measured in marmosets (callithrix jacchus) after soman (1.75 and 3.5 micrograms/kg), sarin (3 and 6 micrograms/kg), physostigmine (10 and 20 micrograms/kg), and pyridostigmine (200 and 400 micrograms/kg). effects on performance were investigated with a discrete-trial, two-choice visual discrimination task and a hand-eye coordination task. the former test appeared mor ... | 2013 | 7667367 |
| delayed hypersensitivity test with paracoccidioidin in captive latin american wild mammals. | the aim of this investigation was to study epidemiological aspects of paracoccidioidomycosis, the main endemic systemic mycosis in brazil. this study was carried out using the paracoccidioidin delayed hypersensitivity test in 96 latin american wild mammals, including 49 arboreal animals (primates): 33 cebus apella (weeping-capuchin), 16 callithrix jacchus (marmoset); and 47 terrestrial animals (carnivora): 37 nasua nasua (coatimundi), and 10 felidae [panthera onca (jaguar), felis paradalis (ocel ... | 1995 | 7650577 |
| anatomy of adult female common marmoset (callithrix jacchus) reproductive system. | better appreciation of the female reproductive anatomy of the common marmoset (callithrix jacchus) should improve the prospects for nonsurgical embryo transfer in this model. vaginal measurements were performed in 8 female adult marmoset monkeys. four monkeys were measured at laparotomy for gross internal anatomy, and 1 monkey was analysed at autopsy. the vagina of the marmoset monkey was found to be divided into a lower and upper vagina with a marked vaginal isthmus between them. the mean lengt ... | 1994 | 7649784 |
| meiotic competence of marmoset monkey oocytes is related to follicle size and oocyte-somatic cell associations. | this study was conducted to investigate the relationships between oocyte meiotic competence, follicle size, and occyte-somatic cell associations in the marmoset monkey (callithrix jacchus). follicles were excised from ovaries of nonstimulated adult cyclic females (n = 6) collected on day 7 of the follicular phase. follicles were separated into size groups: large preantral (260-400 microns), periantral (420-640 microns), small antral (660-1000 microns), large antral (1020-2000 microns), and preov ... | 1995 | 7632831 |
| the interstitial space of the thyroid gland of marmosets (callithrix jacchus). | the interstitial space of the thyroid gland of adult marmosets contains, like the stroma of other organs, cells and intercellular substance (matrix), blood vessels (predominantly capillaries), lymph vessels and unmyelinated nerves. it is demarcated from the follicular epithelium, the capillaries and schwann cells by a basal lamina (bl). the perifollicular bl shows thickenings of up to 3 microns over long distances or a multilayered arrangement. these thickened segments exhibit numerous epithelia ... | 1995 | 7625607 |
| morphology of thyroid follicular cells from adult marmosets (callithrix jacchus). | the existence of follicles with a "super flat" epithelium and the large number of primary and especially secondary lysosomes and lipofuscin granules in these cells are characteristic features of the thyroid gland of adult marmosets (callithrix jacchus, new-world monkeys). it is supposed that these morphological findings are indications of a relatively low function and early ageing. | 1995 | 7625606 |
| projections of the lateral terminal accessory optic nucleus of the common marmoset (callithrix jacchus). | the connections of the lateral terminal nucleus (ltn) of the accessory optic system (aos) of the marmoset monkey were studied with anterograde 3h-amino acid light autoradiography and horseradish peroxidase retrograde labeling techniques. results show a first and largest ltn projection to the pretectal and aos nuclei including the ipsilateral nucleus of the optic tract, dorsal terminal nucleus, and interstitial nucleus of the superior fasciculus (posterior fibers); smaller contralateral projectio ... | 1995 | 7608336 |
| selective dopamine antagonist pretreatment on the antiparkinsonian effects of benzazepine d1 dopamine agonists in rodent and primate models of parkinson's disease--the differential effects of d1 dopamine antagonists in the primate. | in rats with unilateral 6-hydroxydopamine (6-ohda) lesions of the medial forebrain bundle, pretreatment with the d1 da antagonists, sch 23390 (7-chloro-8-hydroxy-2,3,4,5-tetrahydro-3-methyl-1-phenyl-1h-3-benzazepin e) and a66359 (1- 2-bromo-4,5-dimethoxybenzyl]-7-hydroxy-6-methoxy-2-methyl- 1,2,3,4 tetrahydroisoquinoline), but not the d2 da antagonist raclopride inhibited the contralateral circling induced by the benzazepine d1 da agonists skf 38393 (7-h, 3-h analogue of sch 23390), skf 80723 (7 ... | 1995 | 7604140 |
| comparative and functional myology of the prehensile tail in new world monkeys. | the caudal myology of prehensile-tailed monkeys (cebus apella, alouatta palliata, alouatta seniculus, lagothrix lagotricha, and ateles paniscus) and nonprehensile-tailed primates (eulemur fulvus, aotus trivirgatus, callithrix jacchus, pithecia pithecia, saimiri sciureus, macaca fascicularis, and cercopithecus aethiops) was examined and compared in order to identify muscular differences that correlate with osteological features diagnostic of tail prehensility. in addition, electrophysiological st ... | 1995 | 7595958 |
| [application of the common marmoset to pharmacological studies]. | application of the common marmoset to pharmacological studies was reviewed, especially employment of the animal as a model of parkinson's disease were presented. the common marmoset is one of the new world monkeys with a body weight of 300-350 g. it is small enough to be easily handled and to be kept as a group in a room. in the fields of pharmacology, it has been used in studies of plasma renin activity inhibitors, lipoprotein, memory/learning, obstetrics, transplantation, toxicology, anxiolyti ... | 1995 | 7590519 |
| health problems of callithrix jacchus in captivity. | a 20-year retrospective study was carried out to determine the prevalence of diseases occurring in 265 (155 males and 110 females) common marmosets (callithrix jacchus), kept at the são paulo zoo. a total of 564 clinical disorders were detected: digestive problems, 50.2% (protozoa, 44.3%; helminths, 26.3%; bacteria, 7.0%; non-especific causes, 22.4%); respiratory problems (pneumonia), 16.3%; injuries, 13.8%; nutritional deficiency, 4.4%; reproductive problems (obstetrical) 2.5%; septicemia, 1.6% ... | 1995 | 7581030 |
| the effect of parturition on the interactions within pairs of common marmosets (callithrix jacchus). | the relationship within common marmoset (callithrix jacchus) pairs is based on pair-bond formation. this pair-bond is important for the successful rearing of the young and for the enhancement of reproductive success. female marmosets bear twins which are carried mainly by males starting on the first day after the birth of the infants. little is known, however, about the patterns of sociosexual interaction between callitrichid pairs and how these interactions change after the arrival of offspring ... | 1995 | 7581018 |
| assessment of tissue integrity, ultrastructure and steroidogenic activity of corpora lutea of the marmoset monkey, callithrix jacchus, following in vitro microdialysis. | microdialysis of marmoset (callithrix jacchus) corpora lutea in vitro was evaluated regarding morphology, activity of 3 beta-hydroxysteroid-dehydrogenase (3 beta-hsd) and progesterone (p) secretion. two different dialysis media were used: an unbuffered ringer solution and krebs-henseleit buffer gassed with carbogenium. additionally, the effects of the luteotrophin prostaglandin e2 (pge2) on p secretion were examined for both media. in general 3 zones of tissue according to the maintenance of cel ... | 1995 | 7570579 |
| baseline and mitomycin c (mmc)-induced sister-chromatid exchanges in xx and xy cells of callithrix jacchus chimeric twins. | lymphocytes from chimeric individuals of the species callithrix jacchus (primates) were examined to evaluate differences in the frequency of sister chromatid exchanges (sce) between xx and xy cells. the aim was to discover whether sce differ according to genetic sex and whether xx and xy cells show a different sensitivity to sce inducing agents. this experimental model has enabled us to eliminate the possible differences caused by environmental factors. the results obtained do not reveal signifi ... | 1995 | 7565907 |
| sequence and evolution of the blue cone pigment gene in old and new world primates. | the sequences of the blue cone photopigments in the talapoin monkey (miopithecus talapoin), an old world primate, and in the marmoset (callithrix jacchus), a new world monkey, are presented. both genes are composed of 5 exons separated by 4 introns. in this respect, they are identical to the human blue gene, and intron sizes are also similar. based on the level of amino acid identity, both monkey pigments are members of the s branch of pigments. alignment of these sequences with the human gene r ... | 1995 | 7558038 |
| regional distribution and characterization of nitric oxide synthase activity in the brain of the common marmoset. | the distribution of nitric oxide synthase (nos) within the brain of the common marmoset, a non-human primate species, was investigated using the [3h]l-citrulline formation assay and western blot analysis. no hemispheric asymmetry of specific nos activity was shown. the highest levels of nos were found in the putamen and caudate nucleus--more than twice those in the cortex and the cerebellum, the brain regions with the lowest activities. the regional distribution pattern was similar to that in th ... | 1995 | 7545017 |
| preclinical safety studies with recombinant human interleukin 6 (rhil-6) in the primate callithrix jacchus (marmoset): comparison with studies in rats. | the haemopoietic and immunostimulatory properties of recombinant human interleukin 6 (rhil-6) might be used clinically in cancer patients. for the preclinical assessment of the safety of such a therapy, we chose the primate marmoset (callithrix jacchus) and wistar rats. recombinant hil-6 given to marmosets at doses of up to 1000 micrograms kg-1 day-1 over 4 and 9 weeks did not induce fever and was very well tolerated. haematological alterations included a sustained two- to threefold increase of ... | 1995 | 7538156 |
| prevention of autoimmune demyelination in non-human primates by a camp-specific phosphodiesterase inhibitor. | experimental allergic encephalomyelitis (eae) is an autoimmune disease of the central nervous system that serves as a model for the human disease multiple sclerosis. we evaluated rolipram, a type iv phosphodiesterase inhibitor, for its efficacy in preventing eae in the common marmoset callithrix jacchus. in a blinded experimental design, clinical signs of eae developed within 17 days of immunization with human white matter in two placebo-treated animals but in none of three monkeys that received ... | 1995 | 7536938 |
| in healthy primates, circulating autoreactive t cells mediate autoimmune disease. | a t cell response against myelin basic protein (mbp) is thought to contribute to the central nervous system (cns) inflammation that occurs in the human demyelinating disease multiple sclerosis. to test whether mbp-reactive t cells that are normally retrieved from the circulation are capable of inducing cns disease, mbp-reactive t cell clones were isolated from the peripheral blood of healthy, unimmunized callithrix jacchus (c. jacchus) marmosets. this primate species is characterized by a natura ... | 1994 | 7521889 |
| oxytocin gene expression and oxytocin immunoactivity in the ovary of the common marmoset monkey (callithrix jacchus). | oxytocin was identified in ovaries recovered on day 5 (+/- 1) of the luteal phase from three female marmoset monkeys (callithrix jacchus). with use of a reverse transcription-polymerase chain reaction assay, expression of mrna for oxytocin and oxytocin receptor was detected in both luteal tissue and in the ovarian remnant. evidence for ovarian synthesis of oxytocin was provided by immunohistochemistry, which showed positive staining for oxytocin and neurophysin in the cytoplasm of the luteal cel ... | 1994 | 7521674 |
| long-term interleukin-6 administration stimulates sustained thrombopoiesis and acute-phase protein synthesis in a small primate--the marmoset. | interleukin-6 (il-6) has been ascribed significant roles in both hematopoiesis and the immune response, although its contribution to host defence as a whole is poorly understood. because short-term il-6 treatment was previously shown to stimulate megakaryocytopoiesis, we investigated the effect of long-term administration of il-6 on megakaryocytopoiesis and other systemic parameters in nonhuman primates. we chose a small primate, the marmoset (callithrix jacchus), which enabled long-term adminis ... | 1994 | 7512839 |
| the neuropathology of trimethyltin in the marmoset (callithrix jacchus) hippocampal formation. | the effects of single and repeated doses of trimethyltin (tmt) treatment on the central nervous system (cns) of the marmoset were investigated. for the acute-dose experiment adult animals were administered 3 mg/kg of tmt chloride (ip) and were then observed for changes in behavior. within 24 hr postinjection all animals developed tremors, ataxia, and unresponsiveness. half of the animals had severe clinical deterioration and died at 2 to 3 days following treatment. surviving marmosets were sacri ... | 1993 | 7507820 |
| l-dopa reverses altered gene expression of substance p but not enkephalin in the caudate-putamen of common marmosets treated with mptp. | the mrna levels encoding neuropeptides were measured in the caudate nucleus, putamen and nucleus accumbens of common marmosets exposed to 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine pyridine (mptp). motor deficits induced by mptp treatment were characterized by akinesia, postural abnormalities and rigidity. seven days after mptp treatment, there was a marked increase in levels of enkephalin mrna in the caudate nucleus and putamen. in contrast, the hybridization signal for substance p mrna was r ... | 1995 | 7500841 |
| short- and long-term changes in striatal and extrastriatal dopamine uptake sites in the mptp-treated common marmoset. | the 'short-term' (15-30 days) and 'long-term' (18-42 months) effects of the systemic administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (mptp) on [3h]mazindol binding to dopamine uptake sites was investigated in the common marmoset. in the 'short-term' mptp-treated group, [3h]mazindol binding was reduced in the caudate-putamen (by -82 to -98% with respect to controls), substantia nigra pars compacta (-71 to -84%), ventral tegmental area (-72%) and nucleus accumbens (-54%). [3h]mazind ... | 1995 | 7493614 |
| luteinizing hormone/chorionic gonadotropin bioactivity in the common marmoset (callithrix jacchus) is due to a chorionic gonadotropin molecule with a structure intermediate between human chorionic gonadotropin and human luteinizing hormone. | chorionic gonadotropin (cg), a pregnancy-specific heterodimeric hormone found in primates, is responsible for cl rescue with pregnancy maintenance. of the primates, the human and baboon gene sequences are the only structures so far determined. in order to study the structure and function of cg in other primates, we have isolated and sequenced the coding regions for the two subunits of marmoset cg (mcg) by the reverse transcription/polymerase chain reaction method. study of multiple clones confir ... | 1995 | 7492691 |
| some pathways of xenobiotic metabolism in the adult and neonatal marmoset (callithrix jacchus). | 1. an oral dose of [carboxyl-14c]benzoic acid was excreted as hippuric acid or benzoylglucuronide by the adult marmoset callithrix jacchus, and the relative proportions of the metabolites were dose-dependent over the range 1-100mg/kg body weight, the proportion of glucuronideincreasing with increasing dose level. 2. [14c]aspirin was rapidly absorbed by the marmoset, giving peak blood levels within 1 h of dosing. unchanged aspirin (trace to 5% dose) was excreted up to 3 h after dosage. salicylic ... | 1980 | 7415222 |
| an assessment of the fertilizing ability of spermatozoa in the epididymis of the marmoset monkey (callithrix jacchus). | the fertilizing ability of spermatozoa from differ regions of the epididymis of the marmoset monkey, callithrix jacchus, was assessed by determining their rate of fusion with zonaless hamster ova in vitro. this technique tests for functional competence and was validated using epididymal spermatozoa of the hamster whose fertility have been measured previously by in vivo fertilization experiments. the results suggest that some marmoset spermatozoa first acquire the ability to fertilize in the dist ... | 1981 | 7263089 |
| [ontogenesis of facial muscles in primates]. | 1. the development of facial muscles is studied in embryos of tupaia belangeri, tupaia javanica, nycticebus coucang, galago dimidovii, tarsius bancanus, callithrix jacchus, colobus badius, colobus verus, nasalis larvatus, and homo sapiens. 2. the facial muscles derive from a superficial blastema (anlage of platysma myoides) and another blastema laying beneath the first one (anlage of sphincter colli muscle). both blastemas grow out from mesenchymal cells of the head after the anlagen of all othe ... | 1980 | 7215749 |
| the effects of phenobarbitone on urinary 6 beta-hydroxycortisol excretion and hepatic enzyme activity in the marmoset monkey (callithrix jacchus). | 1980 | 6971098 | |
| 2-hydroxystilbamidine isethionate: a new fluorochrome for use in general pathology. ii. the selective demonstration of fungi. | paraffin sections of kidney, lung and oesophagus containing aspergillus sp., cryptococcus neoformans and candida sp. were taken from human post mortem material and from the marmoset callithrix jacchus. sections were stained for 1-5 min in buffered 2-hydroxystilbamidine isethionate containing sodium metabisulphite after pre-oxidation in 1 per cent aqueous periodic acid. sections were dehydrated, cleared and mounted in polymount. when excited with uv light hyphae and fungal bodies fluoresced white ... | 1982 | 6897222 |
| development of a marmoset colony in australia. | a breeding nucleus of 15 pairs of callithrix jacchus jacchus was imported from an established colony in the united kingdom in 1978, and these have now multiplied to 137 animals. good reproductive efficiency and growth rates have occurred in this colony, with minimal problems from diseases of nutritional or infectious origin. one episode of cessation of breeding and abortions was attributed to excessive noise and disturbance of the normal routine. | 1982 | 6819408 |
| [ovarian cycle of the common marmoset]. | 1982 | 6818835 | |
| vaccination of callithrix jacchus (linné, 1758) marmosets with the pf strain of trypanosoma cruzi. | 1981 | 6817024 | |
| plasma progesterone levels throughout the ovarian cycle of the common marmoset (callithrix jacchus). | radioimmunoassay of progesterone in marmoset plasma has been used to determine ovarian cycle length. total cycle length was 30.1 +/- 3.8 days (mean +/- sd, n = 30, range 24-41 days, median 29.5 days). the pre-ovulatory (follicular) phase, during which progesterone levels were below 10 ng/ml, lasted for 8.8 +/- 3.7 days (mean +/- sd, n = 30, range 3-20 days, median 8.5 days). the post-ovulatory (luteal) phase, during which progesterone levels were greater than 10 ng/ml, lasted for 21.5 +/- 2.2 da ... | 1982 | 6811748 |
| chronic tubulointerstitial nephritis and wasting disease in marmosets (callithrix jacchus). | six marmosets (callithrix jacchus), 20 months to 16 years old, died from a disease characterized by weakness and paralysis of the hind legs, weight lose, anemia and transient diarrhea. the lesions most prominent at necropsy were subacute to chronic tubulointerstitial nephritis, subacute to chronic pancreatitis, and generalized hemosiderosis. chronic protein deficiency is believed to be the underlying pathogenic mechanism, since the diet contained no more than 15% animal protein during the last t ... | 1981 | 6806966 |
| long-term experiments with a newly-developed standardized diet for the new world primates callithrix jacchus jacchus and callithrix jacchus penicillata (marmosets). | 1982 | 6804711 | |
| organ weight data in juvenile and adult marmosets (callithrix jacchus). | 1981 | 6804710 | |
| distribution of catecholamine and indoleamine neurons in the brain of the common marmoset (callithrix jacchus). | the distribution of monoamine neurons in the brains of ten common marmosets (callithrix jacchus) was examined by means of the falck-hillarp formaldehyde histofluorescence technique. large populations of catecholamine and indoleamine neurons were found throughout the brain stem. catecholamine cell bodies corresponded essentially to th noradrenaline and dopamine groups defined as a1-a7 and a8-a14, respectively. in contrast to old world primate species, however, the noradrenaline cell populations ( ... | 1982 | 6804424 |
| the first weeks of cohabitation of newly-formed heterosexual pairs of common marmosets (callithrix jacchus). | 16 pairs of common marmosets were formed, six of which were observed for 7 weeks, and ten for 4 weeks. a variety of behaviours was recorded, including sexual mounting, male tongue-smacking, female slit-eyed tongue-flicking, scent marks, huddling, allogrooming and autogrooming. behaviours associated with sexual encounters occurred initially at high levels but declined during the study period. the incidence of sexual mounting was closely related to that of male tongue-smacking and female slit-eyed ... | 1982 | 6804341 |
| a micro-method for the evaluation of pha-responsive t cells in callithrix jacchus and macaca fascicularis. | 1981 | 6802978 | |
| failure of lactation to have a consistent effect on interbirth interval in the common marmoset, callithrix jacchus jacchus. | 1982 | 6802732 | |
| reproduction, infant survival and productivity of a colony of common marmosets (callithrix jacchus jacchus). | starting with 4 pairs of marmosets, 204 young were successfully reared during 6 years. they were kept in family groups of 2- 10. litter size varied from 1-4; singletons (2%), twins (35%), triplets (55%), and quadruplets (8%). the mean annual increase of weaned young was 3.24 per pair. the median interbirth interval was 154 days. of 46 pairs of marmosets, 8 failed to produce young. approximately 11% of young born were stillborn and a further 32% of all young born died within 3 weeks; perinatal mo ... | 1982 | 6801393 |
| cytoarchitecture of the oculomotor nuclear complex and of the trochlear nucleus in the marmoset (callithrix jacchus). | the cytoarchitecture of the oculomotor nuclear complex (onc) and of the trochlear nucleus (tn) was studied in the encephalon of 10 adult marmosets (callithrix jacchus). all the encephala were fixed with bouin, embedded in paraffin and submitted to 20-mum serial sections in the transversal, frontal and horizontal directions. the following staining methods were employed: nissl, kluver-barrera, and pal-weigert, modified by erhart [1951]. morphologically we delimited four cell columns in the onc of ... | 1981 | 6798814 |
| experimental leishmania chagasi infections in the marmoset callithrix jacchus jacchus. | 1981 | 6795773 | |
| inhibition of ovarian function in subordinate female marmoset monkeys (callithrix jacchus jacchus). | plasma concentrations of progesterone, cortisol, lh and prolactin were measured in dominant and subordinate female marmosets in 10 well-established peer groups. subordinate females never ovulated, had a reduced lh response to lh-rh and showed no positive feedback lh surge after oestrogen administration. there was no evidence of elevated plasma cortisol levels or hyperprolactinaemia in subordinates and all showed a similar prolactin response to trh in comparison with dominants. however, subordina ... | 1981 | 6795346 |
| the effect of 3-methylcholanthrene on urinary 6 beta-hydroxycortisol excretion and hepatic enzyme activity in the marmoset monkey (callithrix jacchus). | 1981 | 6794571 | |
| a histological and histochemical study of normal and diseased skeletal muscle in marmosets callithrix jacchus. | 1980 | 6793646 | |
| husbandry and breeding of a newly-established colony of cotton-topped tamarins (saguinus oedipus oedipus). | from november 1976 to february 1979 a total of 8 litters were born to 6 females. of the 14 infants, 10 were successfully reared by their parents. housing, nutrition, a balance between environmental stability and stimulation, and female multiparity are seen as factors contributing to the breeding success of this colony. a controlled male and female pairing programme provided information on mating behavior and gestation length. one gestation of at least 166 days was observed, longer than that of t ... | 1981 | 6790834 |
| competition for a desired food in family groups of the common marmoset (callithrix jacchus) and the cotton-top tamarin (saguinus oedipus). | four captive groups of common marmosets (callithrix jacchus) and three groups of cotton-top tamarins (saguinus oedipus) were each presented with a desired food and their consumption was monitored. inequalities in consumption between individuals were found for each group of each species. generally, adult females consumed most of the desired food, followed by juveniles, and finally adult males. high consumption levels by all individuals during isolated feedings indicated that consumption inequalit ... | 1981 | 6789003 |
| plasma prolactin concentrations during the ovarian cycle and lactation and their relationship to return of fertility post partum in the common marmoset (callithrix jacchus). | a heterologous double-antibody radioimmunoassay was used to measure plasma prolactin concentrations in 27 marmosets. the assay was valid for the marmoset because plasma levels of prolactin were increased in response to trh and metoclopramide and suppressed in response to bromocriptine treatment. during the cycle there were no consistent changes in plasma prolactin concentrations. during lactation mothers suckling single or twin infants had higher prolactin levels than did non-suckling females an ... | 1981 | 6788944 |
| pharmacologic manipulations of brain catecholamines and the behavior of callithrix jacchus (marmoset). | in experiment 1, groups of marmosets were injected with 50 - 200 mg/kg l-dopa, 0.5 - 2.0 mg/kg apomorphine (ap), or 0.5 - 5.0 mg/kg methamphetamine. the number of head movements, number of body movements, number of times the tongue was extended, and the time the animal remained in an upright posture were scored during a 90-min period after the injections. l-dopa and ap induced large dose-dependent increases in body movements and time in upright posture. furthermore, the smallest dose of ap induc ... | 1981 | 6787644 |
| supplemental feeding of marmoset (callithrix jacchus) triplets. | in a colony of marmosets (callithrix jacchus), all fifteen infants from five sets of triplet births were successfully reared with their parents. two supplemental feedings were given each infant daily. as an alternative to hand-rearing or foster rearing, the supplemental feeding method eliminated the time-consuming process of hand caring for an infant on a 24-hour per day basis. | 1981 | 6787328 |
| immunological characterization of hemopoietic cells in the common marmoset, rhesus monkey, and man. in search of a model for human marrow transplantation. | bone marrow, lymphoid, and peripheral blood cells from the common marmoset and rhesus monkey have been tested with a panel of heterologous and monoclonal antibodies, and their reactivity pattern has been compared with that of blood and bone marrow cells from human donors. conventional antibodies reveal extensive cross-reactivity within the b cell, t cell, and granulocytic systems in all three species, however, some important differences have been exposed. only the monoclonal antibodies to hla-a, ... | 1981 | 6784292 |
| the maturation and aging of the vertebrae of marmosets. | this study deals with the growth, maturation, and age changes to the cartilaginous end-plates of vertebrae from marmosets (callithrix jacchus) varying in age from birth to 10 years. the cartilaginous end-plate is divided into an inner growth layer and an outer articular zone that abuts against the intervertebral disc. the growth cartilage gradually narrows and disappears by 1 year of age, when the animal reaches physical maturity. the articular cartilage undergoes changes in collagen and ground ... | 2009 | 6781074 |
| influence of season on birth distribution in marmosets and tamarins. | the cotton-topped tamarin in captivity exhibits a seasonal influence on birth distribution, while the captive silvery marmoset, common marmoset, goeldi's monkey and red-mantled tamarin are not significantly affected. | 1980 | 6780724 |
| cemented annulation as an age criterion in the common marmoset (callithrix jacchus). | teeth from 18 marmosets, seven months to 5.8 years of age, were studied histologically. a minimum of one dark and one light band comprised one cemental annulation. age was estimated by counting the number of annulations and adding four months to premolar and eight months to canine teeth for tooth development. cemental annulations were most consistent near the gingival border on the labial aspect of the tooth. the method will be valuable in estimating the ages of marmosets and other nonhuman prim ... | 1980 | 6777495 |
| a case of placenta praevia in a common marmoset (callithrix jacchus). | 2006 | 6776678 | |
| regulation of oestrogen-induced lh release in male and female marmoset monkeys (callithrix jacchus). | the positive-feedback action of oestradiol-17 beta on lh release was studied in gonadectomized male and female and intact male marmoset monkeys. positive feedback was observed in normal intact males in response to a single subcutaneous injection of 35 micrograms oestradiol benzoate. the sustained elevation in oestradiol-17 beta levels achieved by the injections resulted in a marked suppression of circulating testosterone concentrations. subcutaneous injections (0.5 mg/injection) of testosterone ... | 1980 | 6776280 |
| [histoenzymologic data on the epithelial cells of the gastric mucosa of marmosets (callithrix jacchus & callithrix penicillata)]. | the gastric mucosa of marmosets is devoid of udpg-gt; phosphorylases; g-6-pa; f-1,6-pa; alanyl aminopeptidase and leucine aminopeptidase. only the acid phosphatase was seen with a stronger reactivity in the chief cells. the other enzymes (ldh; g-6-pdh; 6-pgdh; nadph2-tr; cis-aconitase; icdh; sdh; mdh; cytochrome oxidase; nadh2-tr; a-gpdh; b-ohbdh and nonspecific esterase) showed a stronger reactivity in the parietal cells. | 1980 | 6774386 |
| [reservoirs and wild vectors of trypanosoma cruzi. lxxv: natural t. cruzi infection of the monkey callithrix jacchus (linnaeus, 1758)]. | 1980 | 6773112 | |
| a stereotaxic x-ray map of the hypothalamus of the marmoset monkey callithrix jacchus. | precise hypothalamic surgery in the marmoset monkey callithrix jacchus cannot be performed by means of the horsley-clarke stereotaxic procedure. thus, a simple stereotaxic x-ray technique was developed. technical requirements are a stereotaxic frame for small animals and a dental x-ray source. a sagittal map shows hypothalamic structures in relation to surrounding bony landmarks. corresponding coronal plates allow target determination in that plane. intracerebral coordinates based on the positio ... | 1980 | 6766871 |
| the myoglobin of primates: the night monkey, aotes trivirgatus (cebidae, platyrrhini, anthropoidea). | the amino acid sequence of the myoglobin of the south american night monkey, aotes trivirgatus, is identical to that of the marmoset (callithrix jacchus [1]) except for residue 21 which is isoleucine in the marmoset, like in all other anthropoids, but valine in aotes. analysis of a possible pathway of the evolution of aotes myoglobin using 18 known primate myoglobin sequences [2-5] supports the classification of the night monkey within anthropoidea and platyrrhini but it indicates that this spec ... | 1984 | 6692912 |
| the effect of the ovarian cycle on the sexual behaviour of the common marmoset (callithrix jacchus). | the sexual behaviour of 7 pairs of marmosets was observed during 30 minute tests for 44-68 days and blood samples were collected from females for measurement of plasma progesterone, testosterone and oestrone. copulations occurred throughout the ovarian cycle of 24-30 days. females used a "tongue-flicking" display both as an invitational behaviour (proceptive tongue-flicks) and during copulation (receptive tongue-flicks) most frequently during the peri-ovulatory period. frequencies of proceptivit ... | 1983 | 6683847 |
| investigations into the induction of chronic experimental arthritis in the common marmoset (callithrix jacchus). | in an attempt to produce a superior model of rheumatoid arthritis, experiments have been performed to investigate the ease of induction of experimental arthritis in marmosets by immunological means. marmosets were sensitised with the following combinations of antigen and adjuvant: ovalbumin in freund's complete adjuvant (fca), ovalbumin in fca + bordetella pertussis, methylated-bsa in fca + b. pertussis or human fibrin in fca + b. pertussis, and subsequently injected with the corresponding antig ... | 1983 | 6622924 |
| interhemispheric connections of visual cortex of owl monkeys (aotus trivirgatus), marmosets (callithrix jacchus), and galagos (galago crassicaudatus). | interhemispheric connections of visual cortex were studied in owl monkeys, marmosets, and galagos after multiple injections of horseradish peroxidase into one cerebral hemisphere. areal patterns of connections were revealed in sections of cortex that was flattened and cut parallel to the surface. results were related to the locations of known visual areas, especially in owl monkeys, in which more visual areas have been established. the connection patterns in owl monkeys and marmosets are very si ... | 1984 | 6520237 |
| x-ray-induced translocations in marmoset (callithrix jacchus) stem-cell spermatogonia. | the induction of reciprocal translocations in spermatogonial stem cells of marmosets (callithrix jacchus) was studied after irradiation with different doses of x-rays (50, 100 and 200 rad) via spermatocyte analysis many cell generations later. the obtained results show a dose-effect relationship with clear saturation effects at 200 rad. the recorded frequencies of translocations were much lower than those reported for closely related marmosets (saguinus fuscicollis and saguinus oepidus). possibl ... | 1984 | 6504061 |
| diurnal and annual variations in plasma androgen levels in the adult male marmoset (callithrix jacchus). | diurnal and annual variations in plasma androgen levels were studied in adult male marmosets. a distinct diurnal pattern, characterized by low androgen levels during the lights-on period and high levels during the lights-off period was observed (n = 7). in contrast to this, no definite circannual pattern in androgen levels was observed (n = 6). | 1984 | 6441783 |
| a survey of the pathology of marmosets (callithrix jacchus) under experiment. | a survey of the pathology of 567 laboratory-bred cotton-eared marmosets (callithrix jacchus) is presented. there were few significant pathological changes in animals used in studies up to 6 months in duration, suggesting that the marmoset can be a useful non-human primate species for routine toxicology. the most common pathological changes encountered were chronic colitis, chronic thyroiditis and interstitial mononuclear infiltration in the kidney. no internal parasites were encountered, nor wer ... | 1984 | 6439947 |
| a comparison of craniofacial growth between two colonies of marmosets (callithrix jacchus). | general and craniofacial measurements from young marmosets in a recently established australian colony are presented and compared with similar data published for a long-established colony in the united kingdom. statistically significant differences between the colonies were those associated with large error variances, suggesting difficulties in locating certain landmarks rather than real differences in growth. thus, direct comparison can be made between craniofacial growth studies conducted at t ... | 1983 | 6438332 |
| radiographic evaluation of appendicular skeletal maturation in the common marmoset (callithrix jacchus). | the thoracic appendicular skeletal development of five common marmosets was monitored radiographically at weekly intervals from 1 day to 94 weeks of age and the times of appearance and fusion of 47 ossification centers were recorded. a range and average age for the appearance and fusion of each ossification center were calculated and compared to data available for the rhesus monkey and man. | 1983 | 6438328 |
| organ and cellular distribution of inhaled metallic mercury in the rat and marmoset monkey (callithrix jacchus): influence of ethyl alcohol pretreatment. | distribution of inhaled radioactive metallic mercury vapour (203hg0) in rats and marmoset monkeys (callithrix jacchus), with or without pretreatment by ethyl alcohol or aminotriazole (rat), was studied by means of whole-body autoradiography, microautoradiography and scintillation counting of excised organs. metallic mercury is oxidized by the catalase-h2o2 complex (complex i) to the ionic form (hg2+) and is known to be accumulated and retained in organs such as lungs, liver, myocardium, and brai ... | 1984 | 6437142 |
| cholinergic learning deficits in the marmoset produced by scopolamine and icv hemicholinium. | common marmosets (callithrix jacchus) were trained to perform daily position discrimination learning tasks in a wisconsin general test apparatus. acetylcholine receptor blockade with scopolamine was found to impair position learning. testing on the day after scopolamine treatment suggested that a task learnt under scopolamine was not encoded into long term memory. acetylcholine depletion achieved by the intraventricular injection of hemicholinium 4 h before testing resulted in a profound impairm ... | 1984 | 6436862 |
| 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonism in the common marmoset. | the administration of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (mptp) (1-4 mg/kg i.p.) for 4 days induced dose-dependent parkinsonism in the common marmoset within 48 h. mptp produced profound akinesia, rigidity of the trunk and limbs, postural abnormalities, loss of vocalization and, in some cases, postural tremor. in a single animal the administration of l-dopa in conjunction with a peripheral decarboxylase inhibitor, reversed the parkinsonian symptoms. subsequent biochemical analysis show ... | 1984 | 6436758 |
| undifferentiated carcinoma of the nasal tissues in the common marmoset. | the occurrence of undifferentiated carcinoma of the nasal tissues in 3 adult marmosets is described. the tumours appeared to arise from the respiratory epithelium of the turbinate bones and nasal septum. they were poorly differentiated, invaded the paranasal sinuses and hard palate and metastasized to the lungs or liver. | 1984 | 6432862 |
| reproductive status of adult daughters in family groups of common marmosets (callithrix jacchus jacchus). | urine samples were collected from 6 pubertal female common marmosets at approximately 3-day intervals over a period of 3-7 months. all 6 females were the eldest daughters in their family groups. 3 of these females were subsequently removed from their families and sampled in isolation for another 2-3 months. levels of urinary pregnanediol-3 alpha-glucuronide were measured by radioimmunoassay in order to establish whether these females showed ovarian cyclicity. no cyclical fluctuations in the leve ... | 1984 | 6432658 |
| an involvement of acetylcholine in object discrimination learning and memory in the marmoset. | five marmosets (callithrix jacchus) were tested, using a wisconsin general test apparatus, on a series of junk object visual discrimination tasks, including new learning, 24-hr reversal and 24-hr retention. the effects of administering the cholinergic receptor blocking agent, scopolamine either just before or immediately after the new learning task, or just before the 24-hr reversal and retention tasks, were assessed. results suggest that scopolamine impairs new learning and impairs the encoding ... | 1984 | 6431311 |
| serum biochemical, hematological and body measurement data for common marmosets (callithrix jacchus jacchus). | blood samples were drawn and body measurements taken from healthy adult and juvenile common marmosets which had been housed under controlled environmental conditions for a minimum of 2 years. blood was analyzed for serum biochemical and hematological constituents. | 1984 | 6431192 |
| reproductive performance of three species of callitrichidae. | the reproductive performance of three species of callitrichidae housed under identical conditions, including relatively spacious caging and visual screening, was compared. the three species were callithrix jacchus, saguinus fuscicollis, and saguinus oedipus. callithrix jacchus was the most reliable breeder, with the lowest percentage of stillborn and the highest post-weaning survival. while the reproductive performance of s oedipus was better than that generally reported for other colonies, the ... | 1984 | 6431191 |
| morphological assessment of testicular maturity in marmosets (callithrix jacchus). | the onset of spermatogenesis in relation to age, bodyweight and testes weight in 105 marmosets used in safety studies has been reviewed. the histological recognition of adverse effects on spermatogenesis is an important part of these studies and this survey indicates that male marmosets should be at least 50 weeks and preferably 60 weeks of age if an assessment of all stages of spermatogenesis is required for safety evaluation. | 1984 | 6431187 |
| the effect of haemolysis on some clinical chemistry parameters in the marmoset (callithrix jacchus). | the effect of haemolysis on the levels of commonly analysed plasma constituents was investigated in the common marmoset. results were divided into a) low levels of extra haemolysis (less than 2 g/l plasma haemoglobin) and b) high levels of extra haemolysis (greater than 2 g/l plasma haemoglobin). mean changes in plasma constituent levels were examined and the correlation with increased haemolysis measured. large changes in malate dehydrogenase and lactate dehydrogenase were found at low levels o ... | 1984 | 6431186 |
| reference intervals for some clinical chemical parameters in the marmoset (callithrix jacchus): effect of age and sex. | reference intervals for some clinical chemistry parameters in the marmoset were calculated. the effects of age (250-300 days compared with 500-550 days) and sex on the values found was investigated. alkaline phosphatase levels decreased with age, young males having higher plasma levels than young females, but no sex differences were discernible for older animals. levels of gamma-glutamyl transpeptidase and sorbitol dehydrogenase were higher in older males than in younger females. higher plasma i ... | 1984 | 6431185 |
| canine tooth root infection as a cause of facial abscess in the common marmoset (callithrix jacchus). | facial abscesses in a colony of common marmosets were found to be caused by abscessation of an upper canine tooth root. trauma to the upper canine, resulting in exposure of the pulp cavity, was thought to be the mode of infection. radiography was the most useful diagnostic aid in establishing the nature and extent of the lesion. antibiotic therapy alone was inadequate, and provision of drainage by extracting the tooth, in conjunction with antibiotics, proved the most effective treatment. | 1984 | 6431184 |
| an outbreak of bordetella bronchiseptica pneumonia in a colony of common marmosets (callithrix jacchus). | an outbreak of bordetella bronchiseptica pneumonia occurred in a breeding colony of common marmosets (callithrix jacchus). 16 animals, all except one under 12 months of age, died suddenly. extensive lesions of pneumonia and pleurisy were found at necropsy and b. bronchiseptica was isolated from the nasopharynx, trachea and lungs. older animals had only a mild rhinitis. colonization of the nasal mucosa occurred in 71 of 156 marmosets. | 1983 | 6431182 |
| craniofacial growth in young marmosets (callithrix jacchus). | a cross-sectional study of craniofacial growth in young marmosets was performed. selected linear craniofacial measurements were obtained from groups of 5 animals of each sex at 3 monthly intervals from birth to 1 year. these data provide a baseline for comparison with other colonies and in the assessment of teratogens on craniofacial development. | 1983 | 6431179 |
| a survey of the pathology of marmosets (callithrix jacchus) derived from a marmoset breeding unit. | the results of a survey of the major pathological conditions encountered in an established breeding colony of common cotton-eared marmosets (callithrix jacchus) is presented. 265 home-bred and 70 imported wild-caught marmosets were examined. a heinz body haemolytic anaemia and skeletal muscle myopathy were the most common pathological findings and were considered to be a result of a complex nutritional deficiency involving vitamin e, selenium and protein. inflammatory disease of the intestinal t ... | 1983 | 6431178 |
| spontaneous neoplasms of the marmoset (callithrix jacchus). oral and nasopharyngeal squamous cell carcinomas. | eight spontaneous highly invasive oral and nasopharyngeal squamous cell carcinomas were observed over an 18-month period in a breeding colony of the common marmoset (callithrix jacchus). affected marmosets were predominantly males over four years of age. the incidence of this tumor in the four-year-plus age group was 4.9%. the tumors were locally invasive through the palate to the nasal cavity, retrobulbar space and cranial cavity in some marmosets with lung metastases present in three cases. | 1984 | 6428027 |
| ovariectomy does not abolish proceptive behaviour cyclicity in the common marmoset (callithrix jacchus). | unlike in other non-human primates, ovariectomy of the female marmoset did not alter heterosexual interactions. proceptive behaviour bouts retained the same cyclicity, duration and frequency within tests as during the ovarian cycle. significant rises in plasma levels of cortisol, progesterone, oestrone and testosterone were found during these proceptive behaviour bouts and in cortisol, progesterone and oestrone at their onset. results suggest a role for adrenocortical steroids in both maintainin ... | 1984 | 6425446 |