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[a specific and quantitative determination of rat beta-endorphin. combination of hplc and ria].a specific and quantitative method for the determination of rat beta-endorphin by the combination of hplc and ria was developed. rabbit antiserum against camel beta-endorphin (c beta-e) was raised and used for ria at the final concentration of 1:10000. the quantitative range estimated from the displacement curve was 0.1-2.0 ng. cross-reactivities with met-enk, leu-enk, alpha-msh, alpha-endorphin, acth and human beta-e were less than 0.1, less than 0.1, less than 0.1, less than 0.1, 2 and 100%, r ...19846096234
dermorphin interaction with peripheral opioid receptors.the interaction of dermorphin with different peripheral opioid receptor subtypes was investigated in vitro, using the guinea pig ileum as representative tissue for mu, the mouse vas deferens for delta, the rabbit vas deferens for kappa and the rat vas deferens for epsilon. the effect of dermorphin on each tissue preparation was compared with that of selective mu, delta, kappa epsilon agonists respectively morphine, met-enkephalinamide, ethylketocyclazocine and camel beta-endorphin. antagonism wi ...19846099487
desaturation of exhaled air in camels.we have found that camels can reduce the water loss due to evaporation from the respiratory tract in two ways: (1) by decreasing the temperature of the exhaled air and (2) by removal of water vapour from this air, resulting in the exhalation of air at less than 100% relative humidity (r.h.). camels were kept under desert conditions and deprived of drinking water. in the daytime the exhaled air was at or near body core temperature, while in the cooler night exhaled air wat at or near ambient air ...19816111802
the level and distribution of disaccharidases in the camel (camelus dromedarius) intestine.1. the disaccharidases, cellobiase, isomaltase, lactase, maltase, sucrase and trehalase were investigated for presence in the camel (camelus dromedarius) intestine and pancreas. all, except sucrase, were present. 2. their levels of activities were measured at different positions of the small and large intestines and the location of maximum level of activity for each enzymes along the intestinal tract was established. 3. high levels of activities were determined in the contents of the intestinal ...19826121646
isoelectric point determination of human and camel beta-endorphin, alpha-endorphin and enkephalins. 19826122446
studies on the structural prerequisites for the activation of the beta-endorphin receptor on the rat vas deferens.the inhibitory activity of a variety of opioid peptides was tested on the electrically stimulated rat vas deferens. human beta-endorphin (beta h-ep) was the most potent of the opoioid-like peptides; it produced half-maximal inhibition of the neuromuscular twitching at a concentration of about 100 nm. the potency of beta h-ep was greater than that of camel, porcine, ovine or leucine5 beta h-ep, alpha-n-acetyl beta-ovine-ep was inactive. in contrast to beta-endorphin (beta-ep), methionine and leuc ...19826123591
isolation and characterization of camel pepsins.camel (camelus dromedarius) pepsins were precipitated from the extract of the fundic gastric mucosa by ammonium sulfate between 35 and 80% saturation. deae--cellulose chromatography of this fraction produced two isoenzymes, i and ii, which were further purified to homogeneity on sephadex g-100. their km with n-acetyl-l-phenylalanyl-diiodotyrosine were 0.10 and 0.90 mm, and their molecular weights which were determined on sodium dodecylsulfate gel electrophoresis exhibited 35,500 and 34,700, resp ...19846141027
a simple classification of different types of trypanosomiasis occurring in four camel herds in selected areas of kenya.camels from herds in four different areas of kenya were sampled at regular intervals over periods of 9-15 months and examined for the presence of trypanosomiasis. five hundred and eight camels divided into three age categories were studied. trypanosomiasis caused by t. evansi, t. brucei and t. congolense was shown to be present in varying degrees in all the herds. camels were divided into 5 types according to mortality, the presence or absence of circulating trypanosomes and antibody, and the pr ...19836141655
camel contagious ecthyma (pustular dermatitis).in 1979, pustular dermatitis caused by a virus belonging to the family poxviridae , genus parapoxvirus , was observed among camels in some areas of mongolia . the morbidity in adults ranged from 10 to 80%, of 2 to 3-month-old suckling camels between 50-70% and it reached 100% in 1-year-old animals. in the beginning, pustules developed around the mouth followed by papular elevations and scab formation. the virus designated camel contagious ecthyma (cce) grew on the chorionallantoic membrane (cam) ...19846145344
the fine structure of the boundary tissue of the seminiferous tubule of the camel (camelus dromedarius).an ultrastructural study of the boundary tissue of the seminiferous tubule of the camel reveals that it consists of three lamellae; inner fibrous, inner cellular and outer cellular. the inner lamella is subdivided into two homogeneous layers enclosing a third one that contains collagenous fibres and fine filaments. the inner cellular lamella consists of several layers of myoid cells; each layer is separated from the adjacent layer by homogeneous material and varying amounts of collagen. the oute ...19806157293
a biochemical study of adult and cystic stages of echinococcus granulosus of human and animal origin from kenya.a comparative biochemical study was performed on adult and cystic stages of echinococcus granulosus. basic quantitative differences in metabolism were apparent between the cystic forms of sheep origin from the uk and kenya which suggest that each may represent a different geographical strain or sub-strain. the biochemistry of the human and sheep forms from kenya was very similar, which probably reflects a certain close affinity between the two. the fact that the cattle, goat and camel forms of e ...19816164714
[tissue-specific retinal proteins in vertebrate evolution].studies have been made on water soluble antigens of the retina from man and some animals. in the bovine retina, immunochemical analysis reveals, apart from antigens with a broad and narrow interorganic specificity, organospecific alpha 1- and rho-globulins. immunochemically, the bovine alpha 1-globulin is partially identical with the same protein of the human retina and completely identical to retinal antigens from cattle; rho-globulin is characterized as an interspecific antigen in man and mamm ...19816169234
the prenatal development of hair follicles and hair in the one-humped camel (camelus dromedarius).the development of the hair follicles started in the prescapular region of crl 15 cm-fetuses as follicular plugs. at crl 31 cm, they became cylindrical cell cords. in the crl 45 cm-fetus two types of growing follicles, primary and secondary ones, could be differentiated, while the tertiary follicles were still follicular plugs. the follicles formed groups, and the primary follicles attained their complete structure at crl 79 cm, while the secondary follicles at crl 83 cm. the tertiary follicles ...19836201017
the development of the sweat and sebaceous glands in the skin of the one-humped camel (camelus dromedarius).the sweat gland primordium appeared as a solid bud from the ental side of the epithelial cords of the growing hair follicles in the crl 36 cm-fetus from the primary hair follicles and in the crl 64 cm-fetus from the secondary ones. in the crl 68 cm-fetus the glands were tubular with a slight curving of their lower third, which became convoluted at the crl 83 cm-stage. at the latter age, clear myoepithelial cells were observed in the secretory portion as also in the duct. the buds of the sebaceou ...19836201018
histomorphological study of the jg complex of the one-humped camel (camelus dromedarius). 19826213173
[lumbosacral plexus of the dromedary (camelus dromedarius). i. descriptive anatomy of the cranial portion]. 19826214971
the male genital tract of the dromedary (one-humped) camel (camelus dromedarius): gross and microscopic anatomy. 19826216826
[external structure and lobation of the dromedary liver]. 19836222670
the cartilages of the larynx of the one-humped camel (camelus dromedarius) and sheep (ovis aries). 19836222676
testicular steroidogenesis in the camel (camelus dromedarius) during the mating and the nonmating seasons.enzyme reactions in the camel testis involved in androgen synthesis were studied to determine the factors which account for the low testosterone production during the non-mating season (nms). testes excised during the nms were found to have a relatively high activity of the 3 beta-hydroxysteroid dehydrogenase systems of pregnenolone, 17 alpha-hydroxypregnenolone, and dehydroepiandrosterone, but the 4-ene-17 alpha-hydroxylase and 4-ene-17,20-lyase systems were apparently less active than the 5-en ...19836228485
studies on the poll glands of the one-humped camel in relation to reproductive activity. i. seasonal morphological and histochemical changes.the poll glands of the camel have been studied histologically and histochemically. an active gland, as observed between september and march, with a peak period in november and december, consists of sharply demarcated lobules separated by thin strands of connective tissue. alveoli and proximal parts of excretory ducts are either lined with flat/simple cuboidal epithelium or with tall cells possessing distal protruding tips almost occluding the lumina; both segments, i.e. alveolus and proximal par ...19846232249
anatomic study of the veins and the arteries of the penis of the camel (camelus dromedarius). 19846240951
beta-endorphin: dissociation of receptor binding activity from analgesic potency.biological activities of synthetic camel beta-endorphin and human beta-endorphin (beta h-ep) have been measured by the radioreceptor binding assay, using [tyr27-3h]-beta h-ep as the primary ligand and by the tail-flick test for analgesic potency. four synthetic analogs of beta h-ep, namely [gly31]-beta h-ep-gly-nh2, [gly31]-beta h-ep-gly-gly-nh2, [gln8,gly31]-beta h-ep-gly-gly-nh2, and [ch3(ch2)4nh231]-beta h-ep, have also been assayed by the same procedures. results indicate a clear dissociatio ...19806246537
coordinate, equimolar secretion of smaller peptide products derived from pro-acth/endorphin by mouse pituitary tumor cells.the secretion of peptide products derived from pro-acth/endorphin was examined with several radioimmunoassays and with polyacrylamide gel analyses of immunoprecipitates of radioactively labeled peptides. in studies using a mouse pituitary tumor cell line the accumulation of each of the four molecular forms of adrenocorticotropic hormone (acth) in tissue culture medium was shown to be a linear function of time. no evidence for self inhibition of secretion by accumulated, secreted peptides (i.e., ...19816262331
comparison of rat anterior and intermediate pituitary in tissue culture: corticotropin (acth) and beta-endorphin.the forms of immunoreactive beta-endorphin-sized material in extracts of anterior and intermediate-posterior pituitary from the rat examined by the ion exchange chromatography method of zakarian & smyth. the anterior pituitary primarily contained material that co-migrated with synthetic camel beta-endorphin(1-31), whereas the intermediate-posterior pituitary contained relatively little such material. the majority of immunoactive beta-endorphin-sized peptides in the intermediate pituitary eluted ...19816268382
opiate binding properties of naturally occurring n- and c-terminus modified beta-endorphins.beta-endorphin is further processed within the pituitary and brain by either n-terminal acetylation, carboxy-terminal proteolysis, or both. these naturally occurring analogues are stored intracellularly and, in some tissues, represent the majority of beta-endorphin immunoreactivity detected by antisera. it is therefore critical to determine their relative potencies at the opiate receptor. this study demonstrates that cleavage of the c-terminus tetrapeptide brings about a 10-fold decrease in opia ...19816272244
human beta-endorphin: specific binding in neuroblastoma n18tg2 cells.the mouse neuroblastoma n18tg2 has specific, saturable binding sites for human beta-endorphin (beta h-ep). the affinity and number of sites are 1.1 nm and 280,000 per cell, respectively, beta h-ep binding is not inhibited by [leu]enkephalin or morphine at concentrations up to 0.1 mm; beta h-ep-(6--31) is a potent inhibitor of binding, and camel beta-ep is much less potent. the data suggest the importance of the nonenkephalin segment of the beta h-ep molecule for interaction with the binding site ...19816273887
beta-endorphin: demonstration of a tertiary structure in aqueous solution.difference spectra generated during thermolysin digestion of camel beta-endorphin at ph 8.2 or at ph 6.5 indicate rapid blue shifting of the near-uv absorption bands of the nh2-terminal tyrosine. a similar spectral change is not observed for the nh2-terminal tyrosine in [met]enkephalin when it is digested under similar conditions. these results suggest that enzymatic digestion destroys or alters some structural interaction between the nh2-terminal tyrosyl residue of the endorphin and a residue(s ...19816278466
beta-endorphin: isolation, amino acid sequence and synthesis of the hormone from horse pituitary glands.beta-endorphin has been isolated from equine pituitaries. its amino acid sequence is identical to that of ovine, bovine and camel beta-endorphins except for substitution of the threonine residue at position 6 by serine. the equine beta-endorphin has also been synthesized by the solid-phase method. in comparison with the human hormone, equine beta-endorphin was shown to possess 3 times the receptor-binding activity in rat membrane preparations and 1.6 times the analgesic potency in the mouse tail ...19816281204
beta-endorphin. interaction of synthetic analogs having different chain lengths with morphine and enkephalin receptors in rat brain membranes.human beta-endorphin analogs with various chain lengths have been investigated for their potency in displacing tritiated dihydromorphine and leu-enkephalin binding in rat brain membrane preparations. it was found that the reduction of chain length from residues 1-31 to 1-5 led to a gradual loss of preference for the morphined receptor. in addition, the extension of the chain length of the met-ekephalin segment to the cooh-terminal glutamic acid modified the binding of the nh2-terminal sequence t ...19826288588
beta-endorphin: analgesic and receptor binding activity of non-mammalian homologs.analgesic potencies of turkey, ostrich and des-acetyl salmon beta-endorphins have been measured in the tail-flick test and binding affinities determined by radio-receptor assay. the duration of analgesia and the slope of the dose-response curves generated by these peptides are similar to those elicited by mammalian beta-endorphins. this suggests that they act in vivo and in vitro on the same population of opiate receptors. the ratio of binding to analgesic potencies observed for these peptides v ...19826288596
camelpox and its risk to the human population.camelpox is mainly of economic importance due to its relatively high mortality, loss of condition and fall in milk production and weight of affected camels. clinically, two distinct types can be distinguished: the severe, generalized form, which appeared more frequently among young animals and the milder, localized form encountered more often in older camels. a higher incidence of illness and a twice higher case fatality rate were observed among male camels. deaths occurred in 30% of the observe ...19836304186
electroacupuncture analgesia blocked by microinjection of anti-beta-endorphin antiserum into periaqueductal gray of the rabbit.the possible role of beta-endorphin (beta-ep) in mediating the analgesic effect elicited by electroacupuncture (ea) was assessed by injecting antiserum against beta-ep into the periaqueductal gray (pag) of the rabbit. two antisera (ho and ua) were raised in rabbits against human beta-ep, each of which recognized human, porcine, bovine, ovine, camel and rat beta-ep, the only difference being that ho recognized rabbit beta-ep while ua did not. the effect of ea analgesia was found to be seriously a ...19836305863
investigation by photochemically-induced dynamic nuclear polarization and nuclear overhauser enhancement 1h-nmr of the interaction between beta-endorphin and phospholipid micelles.the photochemically-induced dynamic nuclear polarization technique has been used to investigate the access of a photoexcited flavin dye to tyrosyl and histidyl residues in [met]enkephalin and human and camel beta-endorphins, both alone and in the presence of n-dodecylphosphorylcholine micelles. the results indicate that the mode of binding of tyr-1, but not of residue 27, is similar in the two endorphins and differs from that of tyr-1 in [met]enkephalin. in human beta-endorphin, accessibility an ...19836307694
isoelectrofocusing on flat bed for determining and separating beta-endorphin.camel synthetic beta-endorphin focused in three bands by isoelectrofocusing on 1 mm polyacrylamide thin gel. all the bands have opioid activity, measured on guinea pig ileum, and radioimmunologically react with beta-endorphin antiserum. since beta-endorphin from rat pituitary gland, particularly from the neurointermediate lobe, also focused in several bands, we hypothesized that the camel peptide occurs in different conformations. a quick, simple technique based on histoelectrofocusing is propos ...19836319851
beta-endorphin: characterization of binding sites specific for the human hormone in human glioblastoma sf126 cells.the established human glioblastoma cell line sf126 was found to bind tritiated human beta-endorphin (beta h-ep) in a saturable fashion. from displacement studies, the ed50 was estimated to be about 2.5 nm. the kd was estimated as 1.9 x 10(-9) m and scatchard analysis showed a biphasic pattern with a predominant low-affinity component. binding reached a maximum at about 90 min at 22 degrees c and was instantaneously reversible. tritiated [d-ala2,d-leu5]enkephalin and tritiated dihydromorphine did ...19846326153
evidence for the neurotrophic regulation of collagen-tailed acetylcholinesterase in immature skeletal muscle by beta-endorphin.acetylcholinesterase (ache) was extracted in a high-saline medium from gastrocnemius muscles of rat embryos and young rats aged 14 days' gestation to 40 days post partum. the molecular forms of the enzyme were separated by low-salt precipitation, followed by velocity sedimentation. during gestation, all molecular forms increased in activity, particularly the 16 s (a12) form. during the first 2 weeks of life, there was a large increase in the activity of soluble ache (g forms), whilst the activit ...19846327907
beta-endorphin: demonstration of binding sites in three human neuroblastoma cell lines specific for the cooh-terminal segment of the human hormone.this communication reports for the first time specific binding sites in human neuroblastoma cells for human beta-endorphin (beta h-ep). three cell lines (imr-32, nmb and kelly) were investigated and found to bind tritiated beta h-ep with an apparent dissociation constant of 2.2-4.2 nm. further characterization with camel beta-ep and synthetic analogs indicated that the binding is most likely mediated by the cooh-terminal segments. beta h-ep-(6-31) had significant potency (15-75%) and beta h-ep-( ...19846329187
effects of opioid peptides and opiate alkaloids on insulin secretion in the rabbit.in pentobarbital-anesthetized rabbits, iv injection of 9 nmol (31 micrograms) human beta-endorphin (beta h-endorphin)/kg bw caused a significant (p less than 0.05) increase in serum glucose and a significant decline in serum insulin during the subsequent 60 min. when 9 nmol/kg bw beta h-endorphin were injected simultaneously with 0.7 g glucose/kg bw, the clearance of serum glucose and the expected glucose-stimulated rise in serum insulin were both inhibited. the threshold dose for the insulinope ...19836339212
a note on some abnormalities and anomalies in camels (camelus dromedarius). 19846370652
the camel in health and disease. 2. aspects of the husbandry and management of the genus camelus. 19846391603
preliminary studies on camel serum immunoglobulins. 19836423523
haemodynamics, blood gas and metabolic changes after anaesthesia with chloral hydrate and magnesium sulphate in camels (camelus dromedarius).the effects of chloral hydrate and magnesium sulphate (1:1, 10 per cent solution) were evaluated in six healthy adult camels. a dose of 1 ml kg-1 was used. these agents produced satisfactory anaesthesia with good muscle relaxation. the changes in the electroencephalogram showed that the anaesthetic effect lasted for 45 to 60 minutes. tachycardia and hypotension were moderate and within safe limits. electrocardiogram studies showed st segment elevation and primary t wave changes. the acid-base st ...19846424194
observations on the incidence and control of sarcoptes scabiei var cameli in the arabian camel. 19846431688
histological and histochemical studies on the mucosa of the initial dilated and middle long narrow part of the third compartment of the camel's stomach (camelus dromedarius). 19806450551
histological and histochemical studies on the fundic mucosa of the camel's stomach (camelus dromedarius).the one-humped camel, like our domestic ruminants, has a capacious compartmentalized stomach and is a ruminating animal. in our studies wer followed the currently predominant opinion that the camel stomach consists of three compartments (vallenas, cummings, munnel 1971). the third one of it is considered as the tubular portion following the second compartment or reticulum and extends till to the pylorus. the tunica mucosa in the terminal dilated part (distal one-fifth) of this third compartment ...19816453540
histological and histochemical studies on the pyloric mucosa of the camel's stomach (camelus dromedarius). 19816455937
serological evidence of exposure to anaplasma marginale in nigerian one-humped camels. 19846464312
morphology of the testis of the one-humped camel in relation to reproductive activity.histological and morphometric studies on the camel testis have been carried out systematically at regular monthly intervals during a period of one year. the testicular weight was minimal during summer, while the maximum weight was attained during the coldest months from november until march. diameters of the seminiferous tubules were multiphasic with a tendency to be wider during summer. the ratio of the area occupied by seminiferous tubules to that occupied by interstitial tissue revealed that ...19846469852
[amino acid and vitamin composition of camel meat]. 19846485300
[the coronary arteries of the dromedary].the arteries of 30 camel hearts were studied after injecting rhodopas ax 85-15 and latex into the heart vessels, maceration with hcl vapour and careful dissection. the arteries of the dromedary heart are described in detail, the similarities and differences between the perissodactyls and arteriodactyls being taken into account.19846486473
the camel in health and disease. introduction. 19846487998
a guide to the clinical examination, chemical restraint and medication of the camel. 19846487999
studies on the poll glands of the one-humped camel in relation to reproductive activity. ii. ultrastructural observations.an alveolus of an active poll gland is lined with cells in various stages of secretory activity. the cells are generally tall and characterised by the presence of a spherical nucleus, a massive golgi complex, numerous mitochondria, granular endoplasmic reticulum, many ribosomes and secretory granules; these are features which constitute evidence of high metabolic and secretory activities. an alveolus of a resting gland, on the other hand, is lined with low inactive cells possessing an infolded n ...19846490529
camel injuries.camels use their teeth to bite, lift and throw their enemies, their feet to kick, paw or trample over, their whole body to knock over, press and squeeze, and their spit or regurgitated food to cover their perceived adversaries. camel injuries can be very serious, resulting in fractures and severe lacerations of skin, muscle, tendons and nerves. deaths have been reported.19846495380
juvenile hormone i effects on the camel tick, hyalomma dromedarii (acari: ixodidae). 19846502615
serodiagnosis of trypanosomiasis in dromedary camels using a card agglutination test set (testryp catt). 19846508393
estradiol concentration in the serum of the one-humped camel (camelus dromedarius) during the various reproductive stages.during the estrous cycle of the camel the concentration of estradiol (e2) varies between 9 and 110 pg/ml. in early estrus, the peak level of e2 (74.7 +/- 6.61 pg/ml, n = 11) is maintained for 2.9 +/- 1.83 days. the length of an estrous cycle is 17.2 days. in the 10th month of pregnancy the level of e2 rises abruptly to 338.3 +/- 162.42 pg/ml and continues to rise until the 12th month, peaking at 606 +/- 120.27 pg/ml. the hormone concentration then drops until the day of parturition (mean 113.4 + ...19846510688
onchocerciasis in camels (camelus dromedarius) in saudi arabia.during a survey in 1980-81, 125 of 478 (26.2%) camels in saudi arabia were found infected with onchocerciasis. the prevalence rates in local and imported camels were 93/272 (34.2%) and 32/206 (15.5%), respectively. the disease was characterized by hard nodules in the connective tissue around the nuchal ligaments and in the subcutis. the nodules consisted of cavities containing live, degenerate or dead onchocerca fasciata, inflammatory cells, fibrosis and calcification. the microfilariae were con ...19846520373
isolation of mononuclear cells from the peripheral blood of camels (camelus dromedarius). 19846524159
electron microscopic study on the prenatal development of the tracheal epithelium in the one-humped camel (camelus dromedarius). 19846528716
[studies on the blood levels in the camel with regard to erythrocytes, hemoglobin, leukocytes, various forms of leukocytes, serum levels of proteins urea, cholesterol, aspartate and alanine aminotransferases as a function of age and sex]. 19846529326
phylogenetical and ontogenetical studies on the molecular weight heterogeneity of bovine serum transferrin.antitransferrin (tf) rabbit serum was highly specific: it reacted with tfs of ruminants, such as european breeds and zebu breeds of cattle, bali cattle, banteng, swamp and river types of water buffalo, anoa, goat, sheep, deer, antelope, camel, and giraffe, but did not react with serum of other non-ruminant species, such as pig, wild boar, hippopotamus, horse, rabbit, rat, chicken, etc. electrophoresis of tf and immunoglobulin g (igg) complexes was carried out using sodium dodecyl sulfate--polyac ...19846529442
a small camel-milk protein rich in cysteine/half-cystine.a small protein (mr about 14 000) rich in cysteine/half-cystine has been isolated from camel milk by exclusion chromatography and reverse-phase high-performance liquid chromatography. the n-terminal amino acid sequence shows a region with several positional identities with alpha and beta-caseins, which however lack cysteine residues; positions 16-20 are identical and involve the serine residues that have been found to be phosphorylated in beta-caseins.19846529605
water deprivation effects on the hematological and hematochemical pictures of camelus dromedarius. 19846537002
experimental infection of sheep by the camel stomach worm, haemonchus longistipes.an attempt has been made to infect sheep by haemonchus longistipes with the objective of developing a relatively cheap and manageable model of camel haemonchosis. a large proportion of inoculated animals (28/34) developed patent infections; the prepatent period was short, lasting for 3 to 4 weeks in the majority of infected animals. worm burdens were low and so was the total egg output. most of the recovered worms were reduced in size.19846541839
[rickettsiosis and chlamydiosis in hoggar (republic of algeria): epidemiological sampling].the study was made on reservoirs of infections (rodent, sheep, goat, dromedary), vectors (louse) and human-receptors. examinations were made on smears examined with staining and indirect-fluorescente techniques and on sera examined by complement fixation test. chlamydia psittaci appears very often in rodent, sheep, goat, dromedary and man. antibodies against coxiella burneti were found present in sheep, goat but mainly in dromedary and less than 16 years old boys. two lice were carrier of ricket ...19846548418
efficacy of ivermectin against gastrointestinal nematodes in dromedary camels.the anthelmintic activity of ivermectin when administered orally and subcutaneously at a dosage of 0.2 mg/kg of body weight was evaluated in 4 trials involving 20 dromedary camels (camelus dromedarius). fecal egg counts were made on the day of treatment and at 2, 4, and 10 weeks after treatment. trichostrongylid egg counts were reduced by a maximum of 100% when ivermectin was administered orally and by greater than 88% when given subcutaneously. egg counts of trichuris spp were reduced by greate ...19846548996
the effect of naloxone on vasopressin release from rat neurohypophysis incubated in vitro.rat posterior pituitaries were superfused in vitro and stimulated electrically. the concentrations of vasopressin in the superfusion medium were determined by radioimmunoassay. when the pulses were applied in 10 sec trains with 10 sec intervals, vasopressin release per pulse increased progressively over the frequency range of 3-12 pulses/sec applied within the trains. the release was blocked by addition of tetrodotoxin or by removal of calcium ions from the superfusion medium. the opiate antagon ...19836620188
camel production in kenya and its constraints. i. productivity.initial results from an ongoing study of the productivity in three herds of camels are presented. the effects of different management systems, traditional nomadic vs. commercial ranching, on growth, fertility and early mortality are described as well as the differences in the genetic potential of two types of indigenous camels.19836623648
camel production in kenya and its constraints. ii. tick infestation.the tick loads and tick species infesting an experimental herd, a rendille pastoralists' herd and two ranch herds of camels, in four different areas of kenya are described. the tick species most commonly observed were hyalomma rufipes, hyalomma dromedarii and rhipicephalus pulchellus.19836623649
hammondia heydorni infection in camels (camelus dromedarius) and water buffaloes (bubalus bubalis) in egypt. 19836636986
studies on the sero-epidemiology of endemic diseases in libya. i. echinococcosis in libya.in libya traditional animal husbandry and the practice of domestic slaughter of food animals contribute to the maintenance of the echinococcus cycle. the cost of echinococcosis is high and may significantly affect the national economy. this study, employing the elisa test, has indicated an approximately 10% infection rate in children and young adults from the environs of benghazi, no difference being apparent between rural and urban dwellers. the prevalence of the infection should be determined ...19836639185
the pathogenesis of experimental haemonchus longistipes infection in goats.goats are highly susceptible to haemonchus longistipes and could therefore serve as an inexpensive model to study camel haemonchosis. the course of the disease in goats is similar to that in camels and to h. contortus infection in sheep and goats. unlike the age-dependency of camel haemonchosis, however, the severity of h. longistipes infection in goats is dose-dependent and varies from mild to hyperacute.19836643762
the foetal thyroid of the dromedary: its relation to body weight and dimensions and to the weight of the dam's thyroid.growth and iodine content of the thyroid glands in relation to body weight, length [total (bcvrt), crown-rump (cr), and curved crown-rump (cvr)], chest circumference (cc), and age were investigated in 83 camel foetuses from 70 to 355 days of gestation (mean gestation length 390 days). weight and iodine content of the dam's thyroid were also studied. highly significant (p less than 0.01) correlations of 0.883, 0.797, 0.798, 0.792, and 0.813 were obtained between foetal thyroid weights on the one ...19836649409
the prenatal development of the skin in the one-humped camel (camelus dromedarius).the epidermis of the camel started its development as a single layer of cuboical cells. the second layer occurred at the fetal stage of c rl 5 cm and the intermediate cell layer at the c rl 10 cm-stage. in the c rl 83 cm - fetus the epidermis is differentiated into the stratum basale, stratum spinosum, stratum granulosum and stratum corneum. in the dermis the collagenic and reticular fibres were observed in the 2 cm - fetus, and the elastic ones at the c rl 20 cm - stage.19836649775
cephalopina titillator (clark 1797) infection in saudi arabian camels. 19836650025
phenotypic variations in blood and milk of the somali camel.132 blood samples and 54 milk samples obtained from somali camel were analysed for red blood cell antigens with the cattle reagents and for hb, ca, x proteins, tf, alb, am, sod, alpha-la, beta-lg and casein systems respectively. positive lytic reactions were obtained with the anti-b, -q, -q', -w, -f1 and -j reagents. no biochemical polymorphism was observed except for hb, x protein and beta-lg systems.19836660598
studies on the histogenesis of the tunica mucosa of the small and large intestines of the camel (camelus dromedarius). ii. histogenesis of the colonic mucosa.the colon is at first a simple tube, and its mucosa has a smooth luminal surface, surrounding a previous lumen. at the 150 mm stage the mucosa is thrown into a number of stout projections, each has a vascularized mesenchymal core and an epithelial cloth. these projections are in turn split into finger-like villi by transverse furrows. the villi reach their maximal length at the 260 mm stage and then gradually degenerate and slough into the lumen. the villi were completely disappeared at the 730 ...19836670344
studies on the histogenesis of the tunica mucosa of the small and large intestines of the camel (camelus dromedarius). i. histogenesis of the small intestinal mucosa.the histogenesis of the small intestinal mucosa passes through a previllous stage, comprising development until the formation of villi (at a c rl of about 15 cm), and a villous stage, comprising the further development. in the previllous stage, the mucosa consists of a lamina epithelialis made up of undifferentiated cells with stratified nuclei and a lamina propria/submucosa made up of homogeneous mesenchyme. the villi appear as luminal epithelial outgrowths associated with vascularized mesenchy ...19836670352
the camel (camelus dromedarius) as an intermediate host for hammondia heydorni.dogs fed raw camel meat containing two types of cysts shed unsporulated hammondia heydorni oocysts and later sporulated sarcocystis sporocysts in their feces, but were resistant to reinfection with the hammondia cysts. sporulated h. heydorni occysts did not induce an enteroepithelial cycle in dogs, but resulted in the formation of muscle cysts.19836672172
[susceptibility of the dromedary (camelus dromedarius) to rotavirus infection]. 19836672882
some observations on the prevalence and pathology of hydatidosis in sudanese camels (camelus dromedarius). 19836675073
[comparative anatomy of the mandible. functional aspects].the structural morphology of the mandibula is presented and correlated to various types of mastication in several mammalian species. the latter include: carnivores (dog, cat, cheetah, lion); omnivores (man, chimpanzee, hog); herbivores (horse, ox, goat, camel, rabbit). while the mandibula is studied as a composite unit, a more analytical, segmental approach has been included, and both are illustrated by x-rays. the aspects presented underline the distribution as well as the local modifications o ...19836679450
tritiated water metabolism during dehydration and rehydration in the camel.the metabolism of tritiated water in the camel was compared in two 10-day periods, one when water was readily available and the second during dehydration. there was a radically depressed metabolism after 2 days of dehydration. two other experiments examined the absorption rate of drinking water. in one experiment drinking water was labeled with tritium, and in the second experiment dilution of tritium-labeled blood was examined. in both experiments there was a rapid uptake and dilution of the bl ...19846693323
peripheral blood levels of progesterone in female camels during various reproductive stages.determination of serum progesterone concentrations over a period of 2 years in female camels during various reproductive stages (estrus, pregnant, nonpregnant, and lactating) suggests that the progesterone levels exceeding 1 ng/ml are reached only if mating is fertile. a cycling camel does not have a luteal phase and mating is probably indispensable for ovulation to occur.19846698390
the prevalence and pathogenesis of naturally-occurring haemonchus longistipes infection in sudanese camels.camel haemonchosis is prevalent in the sudan, especially during the rainy season, with a decrease in prevalence in the dry season possibly due to delayed maturation of the worms. the naturally occurring disease in sudanese camels is characterized by emaciation, anaemia, oedema of the lower parts of the limbs, eosinophilia, hypoproteinaemia, hypoalbuminaemia, hyperglobulinaemia and eosinophilia, as well as elevated blood urea concentrations.19846736305
leydig cell differentiation during the reproductive cycle of the seasonal breeder camelus dromedarius: an ultrastructural analysis.spermatogenesis and leydig cell development in the dromedary were analyzed at the ultrastructural level and correlated with fluctuations of testosterone synthesis during the mating and nonmating seasons. it was found that (1) spermatogenesis and diameter of the seminiferous tubules are dissociated from seasonal fluctuations of testosterone synthesis as they remain similar throughout the year; (2) the volume of the interstitial tissue and the rate of testosterone synthesis are correlated since bo ...19846745626
carcinogenic activity of condensate from coloquint seeds (citrullus colocynthis) after chronic epicutaneous administration to mice.in the sahelian countries coloquint seed tar is used in traditional medicine. a condensate from the seed of citrullus colocynthis was obtained in a camel nomad settlement. it contained a large number of polycyclic aromatic hydrocarbons, including known carcinogens [e.g., benzo(a)pyrene, benz(a)anthracene, benzo(b)fluoranthene, benzo(j)fluoranthene]. the dose-related carcinogenic activity of this condensate was established after chronic epicutaneous application to mouse skin. we conclude that the ...19846746706
fibrous epulis in a one-humped camel (camelus dromedarius). 19806781178
antibodies to crimean-congo haemorrhagic fever virus in domestic animals in iraq: a seroepidemiological survey.a seroepidemiological survey to determine the prevalence of crimean-congo haemorrhagic fever (cchf) virus and its circulation among animals in iraq was carried out in 1980. sera were collected from 2205 animals of different species in three different faunal areas of the country. sera were tested by complement fixation test for quantitative determination of antibodies to cchf virus. among 769 sheep tested 443 (57.6%) were positive; 279 of 562 (49.64%) goat sera; 122 of 411 (29.28%) cattle sera; 1 ...19816806205
characterisation of trypanosoma (trypanozoon) evansi from camels in kenya using isoenzyme electrophoresis.forty-nine trypanozoon stocks isolated from camels in five different areas of kenya were screened for isoenzyme patterns of 11 enzymes using thin-layer starch gel electrophoresis. the results were compared with those obtained in other studies with trypanosoma (trypanozoon) evansi stocks from south america, nigeria, sudan and kuwait. most of the kenyan camel stocks were found to be either identical or closely similar to t (t) evansi stocks from elsewhere and were therefore designated t (t) evansi ...19836836172
synthesis and properties of dermorphin and an analog of beta-endorphin containing the dermorphin sequence.dermorphin (i) and [d-ala2, phe3, gly4, tyr5, pro6]-beta c-ep (ii) have been synthesized by the solid-phase method (beta c-ep, camel beta-endorphin). positions 1 through 7 of ii correspond to the sequence of i. relative potencies of synthetic peptides in the mouse tail-flick test for analgesia by the intracerebroventricular route were: human beta-endorphin, 100; camel beta-endorphin, 164; i, 450; ii, 440. the dermorphin was about 670 times more potent than morphine in the assay. peptide ii repre ...19836853023
electrophoretic and quantitative studies of red cell glucose-6-phosphate dehydrogenase in the one-humped camel (camelus dromedarius) in the sudan. 19836872510
homozygous beta-thalassaemia in a part-aboriginal australian.we describe here the first case of classical homozygous beta-thalassaemia in a part-aboriginal child. the child came from bourke, new south wales, and is the product of a consanguineous mating. his great-great-grandfather was a camel driver from sri lanka who settled in western new south wales. from the family studies, we have found that there are now 17 carriers of beta-thalassaemia in the aboriginal community in northwestern new south wales, and it is anticipated that more part-aboriginal chil ...19836877146
interaction of amphipathic drugs with erythrocytes from various species.changes in morphology of human erythrocytes exposed to certain amphipathic drugs can be predicted by the bilayer couple hypothesis as proposed by sheetz and singer (proc natl acad sci usa 71:4456-4461, 1975). when we tested that hypothesis, using erythrocytes from other mammals, we found that most but not all, underwent the predicted changes. both camel and llama erythrocytes showed minimal morphologic changes when exposed to anionic and cationic phenothiazines. the spicules formed by anionic dr ...19826896609
cervical sprain and fracture in a dromedary. 19816914859
influence of some factors on the fit of cemented crowns.in the study, cast gold crowns were cemented similar to methods used for patients. conclusions were that: 1. fresh cement painted with a camel brush in the part of the crown to be cemented promotes a better fit than when the crown is completely filled with cement. 2. mechanical vibration of the crown at cementation promotes a better fit. 3. venting the crown, an internal relief by acid etching, or a combination of both these procedures improve the seating of the crown during cementation. 4. the ...19816939845
[bacteriologic study of corynebacterium pseudotuberculosis and corynebacterium pyogenes isolated from the dromedary in ethiopia]. 19807005997
the importation of the one-humped camel (camelus dromedarius) into australia during 1840-1841. 19807018488
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