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histogenesis of the follicular wall in the indian softshell turtle lissemys punctata punctata (emydidae). 19853988172
histomorphological study of the thyroid gland in juvenile and adult (non-breeding and breeding) female soft-shelled turtles (lissemys punctata puctata). 19846485496
adrenomedullary and glycemic responses to acth, corticosterone, aldosterone, epinephrine and norepinephrine administrations in the soft-shelled turtle.the aim of the current investigation was to ascertain the role of acth and adrenal hormones on adrenomedullary and glycemic functions in soft-shelled turtles, lissemys punctata punctata. all the experiments were carried out on sexually immature animals. findings revealed that: (1) acth administration (0.5 iu/1.0 iu/2.0 iu per 100 g body wt. daily for 10 days) in all doses stimulated adrenomedullary function by increasing medullary cell nuclear diameter with elevations of norepinephrine, epinephr ...200415521652
myxidium mackiei (myxosporea) in indo-gangetic flap-shelled turtles lissemys punctata andersonii: parasite-host interaction and ultrastructure.myxosporeans are common parasites of fish, and uncommon parasites of amphibians, reptiles and invertebrates, that can cause significant morbidity and mortality. the common genus myxidium infects the excretory system of turtles, yet knowledge of its pathogenicity in these hosts is limited. we offer new knowledge of morphological and ultrastructural aspects of host-parasite interactions in myxidium infections from our recent diagnostic investigations on captive freshwater turtles listed in cites ( ...200515819437
thyroid responses to altered photoperiod in the soft-shelled turtle lissemys punctata punctata bonnoterre.the aim of the current investigation was to investigate the effect of photoperiod on thyroid activity in soft-shelled turtles (lissemys punctata punctata). thirty days exposure of short photoperiod with 2l:22d increased relative weight, follicular epithelial height and peroxidase activity of the thyroid gland; whereas exposure of long photoperiod with 22l:2d for 30 days showed reversed changes to those of the short photoperiod in adult female turtles. these findings indicate that short photoperi ...200717385540
mycobacterium ulcerans infection in an indian flap-shelled turtle (lissemys punctata punctata).we report an atypical mycobacterial infection in an indian flap-shelled turtle, lissemys punctata punctata, that died in an aquarium in japan. at necropsy, the turtle showed multiple white nodules on the capsular surface and parenchyma of various organs such as the liver, spleen, intestine, and lung. histologically, granulomatous inflammation surrounding a central zone of necrosis was observed. sections stained by the ziehl-neelsen method revealed numerous acid-fast bacilli within intracellular ...201121532258
circadian rhythms in serotonin, norepinephrine, and epinephrine contents of the pineal-paraphyseal complex of the soft-shelled turtle (lissemys punctata punctata).diurnal variations in pineal serotonin, norepinephrine, and epinephrine levels were measured at four different time intervals (06:00, 12:00, 18:00, and 24:00 hr) in adult male soft-shelled turtles. the serotonin level increased during day and decreased during night. but the norepinephrine and epinephrine levels showed reverse changes. the findings reveal that there is a distinct circadian rhythm in serotonin, norepinephrine, and epinephrine contents of the pineal-paraphyseal complex in adult mal ...20133557091
documentation and quantitative analysis of local ethnozoological knowledge among traditional healers of theni district, tamil nadu, india.this study investigated the use of animals among the traditional healers in theni district of tamil nadu, india. the data regarding the medicinal animals/animal products were documented and their usages were analyzed quantitatively.201424680989
[identification of turtle shell, tortoise plastron and their counterfeit products].to identify the commercial chinese medicines turtle shell and tortoise plastron.200012512444
a quantitative ethnozoological study of traditionally used animals in pachamalai hills of tamil nadu, india.the purpose of this study was designed to gather primary folk knowledge on different animal based therapies used by malayalis in pachamalai hills. this is the first ethnozoological study in pachamalai hills; the data regarding the medicinal animals/animal products were documented and their usages were analyzed quantitatively.201526002766
phylogenetic relationships and divergence dates of softshell turtles (testudines: trionychidae) inferred from complete mitochondrial genomes.the softshell turtles (trionychidae) are one of the most widely distributed reptile groups in the world, and fossils have been found on all continents except antarctica. the phylogenetic relationships among members of this group have been previously studied; however, disagreements regarding its taxonomy, its phylogeography and divergence times are still poorly understood as well. here, we present a comprehensive mitogenomic study of softshell turtles. we sequenced the complete mitochondrial geno ...201728294452
on the occurrence of a haemogregarinae (apicomplexa) parasite from freshwater turtles of south 24 parganas, west bengal, india.the aim of this study was to investigate haemogregarine parasites (apicomplexa: haemogregarinidae) of freshwater turtles (lissemys punctata andersoni, geoclemys hamiltonii) of india.201323955910
restriction fragment length polymorphism of mitochondrial dna and phylogenetic relationships among five species of indian freshwater turtles.dna-based identification of species for phylogenetic analysis as well as forensic identification is widely being carried out with the help of polymerase chain reaction (pcr). in this study, a successful effort has been made to identify 5 species of indian freshwater turtles, including 3 hard-shell turtles (geoemydidae), i.e. kachuga dhongoka, k. kachuga and geoclemys hamiltoni, and 2 species of soft-shell turtles (trionychidae), i.e. aspideretes gangeticus and lissemys punctata punctata, by usin ...200818436991
breeding biology aspects of spotted flapshell turtle, lissemys punctata (lacepede 1788), in bangladesh.this study was conducted to determine the breeding season, gonadal development, egg laying period, clutch size and other biological aspects of spotted flapshell turtle, lissemys punctata, of bangladesh between january 1997 and december 2001. the egg laying period of l. punctata, was found between august and march. the nesting sites were elevated fallow lands in secluded areas. the female turtle laid all the mature eggs at a time for each clutch at night. a gravid female turtle laid three clutche ...201023961052
adrenomedullary and glycemic alterations following diverse stress in soft-shelled turtles lissemys punctata punctata bonnoterre.the objective of the current investigation was to study adrenomedullary and glycemic responses to stress in soft-shelled turtles, lissemys p. punctata. dehydration (7 days) and formalin (formaldehyde 1%, 0.1 ml/100 g body wt. daily for 7 days) stress-stimulated adrenomedullary activity at histological (by increasing the nuclear diameter and degranulation of chromaffin cells) and hormonal levels (by elevations of norepinephrine and epinephrine concentrations) with hyperglycemia in turtles. but sa ...200819156570
thyroidal inhibition following diverse stress in soft-shelled turtle, lissemys punctata punctata bonnoterre.the current study was undertaken to ascertain the effects of diverse stress on thyroid activity in soft-shelled turtles, lissemys punctata punctata. the findings revealed that starvation (10 days), dehydration (10 days) or exposure to electric shock (12 volts for 15 seconds at an interval of 30 min for 3 h) caused significant decrease in the body weight (except in electric shock), relative weight, peripheral and central epithelial heights of the follicles and peroxidase activity of the thyroid g ...200819133497
disseminated visceral coccidiosis in indo-gangetic flap-shelled turtles, lissemys punctata andersonii.eimerioriniid coccidia commonly infect vertebrates and might contribute to morbidity and mortality under captive conditions. the common genus eimeria typically shows tissue specificity, usually being limited to the epithelium of the gut; disseminated infections are rare in vertebrates. disseminated visceral coccidiosis was found in two wild-caught adult female indo-gangetic flap-shelled turtles (lissemys punctata andersonii) that died while in captivity at a zoo. sporulated oocysts of eimeria sp ...200617255445
roles of thyroid, adrenal and pancreatic hormones on thyroid activity of the soft-shelled turtles lissemys punctata punctata bonnoterre.the effects of some exogenous peripheral hormones (thyroxine, corticosterone, epinephrine, norepinephrine and insulin) on thyroid activity were investigated in juvenile female soft-shelled turtles, lissemys punctata punctata. each hormone was injected in three different doses (25 microg, 50 microg or 100 microg each per 100 g body weight, once daily at 9 am) for 10 consecutive days. thyroid activity was evaluated by gravimetry, histology (epithelial height) and thyroperoxidase assay. the finding ...200617220003
thyroidal modulation following hypo- and hyper-thermia in the soft-shelled turtle lissemys punctata punctata bonnoterre.the aim of the current study was to investigate the effects of ambient temperature on thyroid activity of the soft-shelled turtle (lissemys punctata pucntata). turtles exposed to low ambient temperature (10 degrees c for 15 days) showed a significant decrease in relative thyroid weight, follicular cell size (cell became squamous from cuboidal type) and epithelial height in both the peripheral and central follicles of the gland, with the appearance of homogeneous colloid materials in the follicul ...200316229156
interrenal responses to high ambient temperature in soft-shelled turtle, lissemys punctata punctata.an exposure to ambient temperature of 25 degrees c had no perceptible effect on interrenal function but further increase of temperature to 35 degrees c caused nuclear hypertrophy with increase of nuclear diameter, rna concentration, acid phosphatase and alkaline phosphatase activities, accompanied by quantitative depletions of cholesterol (free, esterified and total) and ascorbic acid levels in the interrenal gland of the soft-shelled turtle lissemys p. punctata. similar manifestations of stimul ...200315248489
gonadotropins and sex hormones modulate interrenal function in soft-shelled turtle.the aim of the current work was to investigate the role of gonadotropins and female sex hormones on interrenal activity in soft-shelled turtles, lissemys punctata punctata. 1) fsh treatment (3 microg/100 g body wt daily for 10 days) caused interrenal hypertrophy with increased nuclear diameter, raises of acid phosphatase and alkaline phosphatase concentrations, and depletions of cholesterol (except the free fraction) and ascorbic acid levels from the interrenal gland. however, lh treatment (3 mi ...200212729156
oviductal sperm storage structure and their changes during the seasonal (dissociated) reproductive cycle in the soft-shelled turtle lissemys punctata punctata.the oviduct of the indian fresh water soft-shelled turtle lissemys punctata punctata was examined throughout the year under light and scanning electron microscopes to determine the location, histomorphological characteristics, and function of sperm storage structure, as well as their changes at different phases of the seasonal reproductive cycle. sperm storage structures in the form of tubules were observed in the wall of isthmus throughout the year. these tubules developed either by folding or ...200312506406
adrenomedullary hormonal and glycemic modulation following gonadotropin and sex hormone administration in the soft-shelled turtle lissemys punctata punctata.the aim of the current investigation was to ascertain whether gonadotropins and sex hormones can modulate adrenomedullary and glycemic functions in turtles. exogenous fsh (3.0 microg/100 gm body wt daily for 10 days) stimulated adrenomedullary activity by increasing nuclear diameter and cytoplasmic degranulation, and elevating adrenal norepinephrine and epinephrine, and blood glycemic levels in turtles. lh (3.0 microg/100 gm body wt daily for 10 days) had no significant effect and the combined t ...201312108792
adrenomedullary hormonal and glycemic responses to high ambient temperature in the soft-shelled turtle, lissemys punctata punctata.the aim of the investigation was to study the influence of high ambient temperature on adrenomedullary activity and blood glucose levels in adult female soft-shelled turtles (lissemys punctata punctata). experiments were carried out at 25 degrees, 35 degrees, and 38 degrees, and one group was exposed to 38 degrees for 15 days and then maintained at 25 degrees for another 15 days. exposure to a low ambient temperature of 25 degrees had no clear effect on adrenomedullary function with respect to h ...200111352549
melatonin action on thyroid activity in the soft-shelled turtle, lissemys punctata punctata.adult female turtles (lissemys punctata punctata) were treated with pineal indoleamine melatonin (100 micrograms/100 g) or the antithyroid agent, methylthiouracil (100 micrograms/100 g) or melatonin together with methylthiouracil (100 micrograms of each drug/100 g) for 12 days. melatonin alone inhibited thyroid activity as evidenced by reduction in the gland weight, follicular epithelial cell height, thyroid peroxidase, and plasma thyroxine levels. methylthiouracil caused hyperplasia of the glan ...19979643166
photothermal effects on ovarian growth and function in the soft-shelled turtle lissemys punctata punctata.investigations were carried out to find out the role of higher and lower ambient temperatures together with short and long photoperiods on ovarian growth and secretion of steroids (estradiol-17 beta and progesterone) in the adult female soft-shelled turtle lissemys punctata punctata during the preparatory, recrudescent, and quiescent phases of its seasonal reproductive cycle. in each phase, females were treated with 3 degrees c higher and 3 degrees c lower than the mean highest and lowest ambien ...19968583207
effect of steroid hormones on serotonin, norepinephrine and epinephrine contents in the pineal-paraphyseal complex of the soft-shelled turtle (lissemys punctata punctata).steroids (testosterone, oestrogen, progesterone, corticosterone, dexamethasone and deoxycorticosterone) were administered intramuscularly (0.1 mg.100 g bw-1) on seven consecutive days to juvenile male soft-shelled turtles. serotonin, norepinephrine and epinephrine contents of the pineal-paraphyseal complex were measured spectrofluorometrically 24 h after the last injection. testosterone and oestrogen decreased serotonin, norepinephrine and epinephrine levels. progesterone treatment resulted in a ...19921430421
effect of ambient temperature on serotonin, norepinephrine, and epinephrine contents in the pineal-paraphyseal complex of the soft-shelled turtle (lissemys punctata punctata).the aim of the present investigation was to ascertain the influence of ambient temperature on serotonin, norepinephrine, and epinephrine contents in the pineal-paraphyseal complex of soft-shelled turtles. turtles were exposed to low (10 degrees) and high (32 degrees) temperatures for 7 days in an incubator with the same photoperiod (12l:12d). control animals were also kept in the same incubator at 25 degrees for similar duration with the same photoperiod. the findings revealed that ambient tempe ...19892714626
circadian rhythms and influence of light on serotonin, norepinephrine, and epinephrine contents in the pineal-paraphyseal complex of soft-shelled turtles (lissemys punctata punctata).the aims of the current investigation were to examine the circadian rhythms in the pineal-paraphyseal amines and indoleamine in juvenile turtles. an attempt was also made to study the influence of photoperiod on pineal activities in adult turtles. serotonin, norepinephrine, and epinephrine levels were studied at four different time intervals (0600, 1200, 1800, and 2400 hr) of a 24-hr period. increased serotonin level was observed during day and trough values during night, but the norepinephrine ...19883410296
effects of reserpine and chlorpromazine on the serotonin, norepinephrine, and epinephrine levels in the pineal-paraphyseal complex of soft-shelled turtles (lissemys punctata punctata).turtles were injected intramuscularly with reserpine (0.5 mg/100 g body wt) and chlorpromazine (10 mg/100 g body wt) at 2400, 1800, and 0600 hr and were sacrificed at 6, 12, and 24 hr, respectively after the treatments, i.e., at 0600 hr. the spectrofluorometric findings revealed that the serotonin, norepinephrine, and epinephrine contents of the pineal-paraphyseal complex decreased at 6 hr, increased at 12 hr, and declined again at 24 hr after the treatments. it is suggested that reserpine and c ...19873666419
influence of age on diurnal rhythms of adrenal norepinephrine, epinephrine, and corticosterone levels in soft-shelled turtles (lissemys punctata punctata).an investigation was made of what role aging plays on diurnal rhythms of norepinephrine, epinephrine, and corticosterone contents in the adrenal gland of soft-shelled turtles. to resolve this problem, juvenile and adult soft-shelled turtles were sacrificed at four different time intervals (0600, 1200, 1800, and 2400 hr) and adrenal hormonal levels were measured by spectrofluorometer. the findings revealed that peak norepinephrine, epinephrine, and corticosterone values were observed at 2400, 060 ...19873666405
topographical differences of carboxylic esterases in the rhombencephalon and mesencephalon of the turtle (lissemys punctata granosa).the present contribution deals with histochemical mapping of acetylcholinesterase, butyrylcholinesterase and non-specific esterase in the rhombencephalon and mesencephalon of the turtle (l. punctata). the study reveals that all the neurons of this species are strongly positive for ache, irrespective of their sensory or motor nature. the enzyme is localized in cell bodies and dendritic processes, while the axons are completely negative. thus its presence in the fibrous components is not seen exce ...19846501870
a comparative study of phosphatases in the rhombencephalon and mesencephalon of fresh water turtle (lissemys punctata granosa).the study deals with the histoenzymological architecture of the rhomencephalon and mesencephalon of a fresh water turtle. attempt has been made to see the location of phosphatases (acid and alkaline phosphatases, 5-nucleotidase, adenosine triphosphatase) in the different constituents of these brain areas. the distribution of acid phosphatase is similar to nissl staining, hence the enzyme has been used as a marker to differentiate various nuclei in the different brain areas. moreover, the concent ...19846098605
significance of glycosidases in myelin-lipid metabolism. i. studies in diencephalon of fresh water turtle (lissemys punctata granosa).the contribution deals with functional significance of glycosidases in myelin-lipid metabolism. glycosidases (beta-galactosidase, beta-glucosidase and beta-glucuronidase), in diencephalon of turtle, are observed in the myelinated fibers of tractus opticus and dorsal and ventral peduncles of lateral fore-brain bundles. further, phospholipids preparations of this area have represented mirror image of glycosidases, suggesting role of these enzymes in its metabolism. glycolipids concentration in mye ...19827130679
significance of glycosidases in lipid and carbohydrate metabolism ii. studies in the mesencephalon of fresh water turtle (lissemys punctata).the contribution deals with histochemical localization of alpha-glucosidase, beta-glucosidase, beta-galactosidase and beta-glucuronidase in the mesencephalon of fresh water turtle. these enzymes demonstrate strong activity in all the myelinated fibers. neuronal elements of nucleus ruber, nucleus isthmi, torus semicircularis, third and fourth cranial nerve nuclei, nucleus profundus mesencephali etc. demonstrate variable activity. interestingly enough, there is parallel localization of all these e ...19826819315
differential leucocyte count in both sexes of an indian soft-shelled turtle (lissemys punctata punctata).leucocytes were studied by measuring their size with the ocular micrometer, determining cell-nuclear ratio and by differential count in an indian species of soft-shelled turtle, lissemys punctata punctata. investigation was carried out in both sexes of the adult animals. large eosinophils have largest size; type a cell, small eosinophil and heterophil are moderately large; and basophil, lymphocyte and monocyte are relatively smaller. nuclear ratio to cell is highest in the lymphocyte and lowest ...19817336814
intraspecific variations in cyt b and d-loop sequences of testudine species, lissemys punctata from south karnataka.the freshwater testudine species have gained importance in recent years, as most of their population is threatened due to exploitation for delicacy and pet trade. in this regard, lissemys punctata, a freshwater terrapin, predominantly distributed in asian countries has gained its significance for the study. a pilot study report on mitochondrial markers (cyt b and d-loop) conducted on l. punctata species from southern karnataka, india was presented in this investigation. a complete region spannin ...201830046490
hematological parameters and morphological characteristics of blood cells in turtle and tortoise species within captivity in sri lanka.this study was conducted to determine hematological reference ranges and morphological characteristics blood cells in healthy captive sri lankan fresh water turtle and tortoise species.201931583221
histological and functional changes of oviductal endometrium during seasonal reproductive cycle of the soft-shelled turtle, lissemys punctata punctata.scanning electron and light microscopic studies reveal significant changes in the endometrial histophysiology of the soft-shelled turtle lissemys punctata punctata during its seasonal reproductive cycle. scanning electron microscopy shows the entire oviductal mucosa to be only slightly folded throughout the non-breeding period (regressive, quiescent, preparatory and recrudescent phases). with the onset of the breeding phase, the mucosa shows extensive foldings and convolutions. the adluminal muc ...199529865300
nasal anatomy of trionychid turtles.two trionychid turtles, trionyx ferox and lissemys punctata, have similar and distinctive nasal cavities. most of the parts of the nasal cavities are similar to those in other turtles, but the intermediate regions have many more small ridges and shallow sulci than do those of other turtles; these form a highly complex and distinctive pattern that varies in minor details. in turtles generally, a relatively large intermediate region appears to be correlated with strongly aquatic habits, which supp ...197130373333
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