Wistar rats characteristics pdf

Wibr, hematology values, clinical chemistry values created date. Pdf metabolic syndrome signs in wistar rats submitted to. High vitamin intakes during pregnancy and characteristics. The wistar bloodline has contributed more strains of rats than any other line.

Dawley from a hybrid hooded male and a female wistar rat. Mar 01, 2009 the spermatozoa characteristics of wistar rats in groups a control, b treated with chloramphenicol for 20 days and c treated with chloramphenicol for 25 days are as presented in table i. Wild rats act as a reservoir for several zoonotic agents. The rat is one of the most commonly used animal models in preclinical studies. Mortality and growth characteristics of rat strains commonly used in. In male rats, the following characteristics were evaluated. Oct 24, 2019 male wistar rats n 48, initial body weight. This process was repeated in other laboratories and today several strains of hypertensive rats with slightly different characteristics exist 3. Isoproterenolevoked renin release from the in situ perfused. Twenty four adult male wistar rats divided into 4 groups of 6 animals eachwere. This study aimed to investigate the potential sex differences and effect of food intake on the intestinal luminal fluid and the efflux membrane transporter p. Characteristics of spontaneously hypertensive, wistar kyoto.

Longevans rats are thought to come from crosses between wistar females and a wild norway rat pass and freeth 1993. The journal of pharmacology and experimental therapeutics, 322 3, 12081220, 2007. Asteraeceae 110192 leaves on 14 adult male wistar rats was studied. Experimental animals were divided into control, ndeatreated, ndea. Primate unit, south african medical research council, po box 19070, tygerberg 7505, south africa and2physiological sciences department, university of the western cape, pbag x17, bellville 7535, south africa. Spermatozoa morphology and characteristics of male wistar. The metabolism and toxicity of furosemide in the wistar rat and cd1 mouse. Biochemical and histopathological studies on female and male. Chemical industry, osaka, japan, and male wistar rats weighing 200 to 280 g funabashi farm, chiba, japan were housed in individual cages in a temperaturecontrolled room with a 12hour lightdark cycle and free access to rodent food and water. Its longevity and high rate of spontaneous tumours make it an ideal. Alcoholnonpreferring rats showed lower activity of glucose6phosphate dehydrogenase in the nucleus accumbens compared with.

Quantitative cytochemical assay showed that single injection of delta sleepinducing peptide increased monoamine oxidase activity substrates. Quantitative cytochemical analysis of the activities of glucose6phosphate dehydrogenase, aminopeptidase, and glutamate dehydrogenase in the brain of wistar rats with different learning abilities revealed a difference in the level of hippocampal aminopeptidase activity. Some functional characteristics of adrenal medullary. Effect of vigrx on number of spermatogonia in male albino wistar rats 31 appendices i. Control group was orally administered with water alone while the experimental group was orally administered with tartrazine dissolved in water. Almost all laboratory and domestic pet rats belong to a single species, the norway rat rattus norvegicus. These findings indicate the low genetic variation in slc.

The morphological characteristics and haematological studies were studied in fifteen male albino rats wistar strain aged between 12 and 14 weeks and with a body weight of 150 180g. Pdf on mar 1, 1998, b t clause published the wistar institute archives. Chlorophytum borivilianum safed musli root extract prevents. Characteristics of open field behavior of wistar and sprague. Morphological characteristics and haematological studies. The laboratory rat handbook of experimental animals. The control rats were kept in cages at ambient temperature of 26c.

Isoproterenolevoked renin release from the in situ perfused kidney. Data are based on 50 carcinogenicity studies at uk sites of envigo for the period 19962018. The rats were allowed to feed on commercially prepared r at. Taconic sprague dawley rats are often used in studying metabolism and diabetes. Electrocardiogram delineation in a wistar rat experimental model. Resistance between dexamethasonetreated and wistar fatty. The results demonstrated that wistar rats were the most susceptible strain to cia followed by wistar furth rats, with sprague dawley rats being the least susceptible. The breeding of imported strains of isogenic rats was started in 1981 because of the lack of experimental rat models in.

Departments 2of 1veterinary anatomy and veterinary surgery and reproduction, faculty of veterinary. Comparative evaluation of the sperm characteristics and. Characteristics of open field behavior of wistar and spraguedawley rats. This is reflected in its behaviour and, when treated properly and sympathetically, its tolerance to handling and restraint. Comparisons of behavioral and neurochemical characteristics. Phenotypic characterization of type ii collageninduced. The effect of oleanolic acid on sperm motion characteristics and fertility of male wistar rats m. Mar 22, 2016 understanding that a normal estrous cycle lasts 45 d in rats, at 6 months of age gotokakizaki rats had significantly more irregular cycles 90 19. Characteristics of open field behavior of wistar and spraguedawley rats yuzo asano safety research laboratory, tanabe seiyaku co. Although, its antiparasitic activity is well known, there is dearth of literature on its effect on the host. Its longevity and high rate of spontaneous tumours make it an ideal choice for ageing studies. Thirtysix adult male and female rats rattus norvegicus weighing. The reproductive effects of saponin extract from vernonia amygdalina del. This study was carried out to determine the growth performance of rats fed graded levels of corchorus olitorius supplemented diet.

Forty male rats were randomly distributed into eight experimental groups of ve. Limited information between the sexes and the effect of food consumption on the gastrointestinal gi physiology, however, is acknowledged or understood. The rat is the most commonly used rodent species for toxicology studies. Effect of vigrx on ejaculation frequency in male albino wistar rats 28 7.

Hematology and clotting evaluations were performed with the aid of a bayer advia 120 analyzer and acladvance instrument while a hitachi p800 analyzer was used for serum chemistry. The spontaneously hypertensive rat and the lewis rat are other wellknown stocks developed from wistar rats. It is an albino strain, easytohandle, it is however slower learner than long evans rat. Survival at 104 study weeks of both male and female wistar hannover rats. The study was conducted to determine the effect of subacute chlorpyrifos exposure on some hormonal and semen characteristics and, the ameliorative effects of melatonin. Enzyme activities in the sensorimotor cortex did not change. Long and evans in 1915 by crossing several wistar females with a wild gray male. The sprague dawley rat and longevans rat were developed from wistar rats. The objective of the present study is to provide in vivo evidence that the c6 rat glioma model is allogeneic. In search of an adequate model for the human metabolic syndrome, the metabolic characteristics of wistar rats were analysed after being submitted to different protocols of high fructose ingestion. Pharmaceutics free fulltext effect of food and an animal. We therefore investigated the effect of aqueous root extract of c. At that time, the behavior of each naive rat was observed for two 3minute periods separated by an interval of 24 h day.

Combination effect of laser diode for photodynamic therapy. The wistar rat, wistar hannover wistar han rat, and wistar unilever wu rat are outbred rat strains, while the wistar kyoto and wistar furth rats are. The c6 wistar model has been used extensively as a reproducible in vivo model for studying primary brain tumors including antiglioma immune responses. Wistar rat model information sheet charles river laboratories. Spermatozoa morphology and characteristics of male wistar rats administered with ethanolic extract of lagenaria breviflora roberts. Guinea pigs and wistar rats are currently in use in laboratory research as models for various human medical conditions, for virology and toxicological studies just to mention a few. Spermatozoa morphology and characteristics of male wistar rats. Pdf oxidative stress by tartrazine in the testis of wistar. Effect of carcinogen 1,2dimethylhydrazine treatment on. In order to provide a morphometrical description of the changes in the aged rat thymus and to relate them to apoptotic and proliferative activity of thymocytes, the thymuses from 3 and 18monthold male wistar rats and the percentages of bromodeoxyuridineincorporating and apoptotic cells in cultures of thymocytes were assessed by stereological analysis and flow cytometry, respectively.

Pdf biochemical toxicity of ivermectin in wistar albino. Seven of the rats constituted the sunexposed group and the other seven rats served as control. Effect of vigrx on testosterone level in male albino wistar rats 30 9. Methods animals and experimental design four weeks old gotokakizaki rats gkmoltac, aarhus colony and wistar han rats were purchased from taconic farms, inc. Influence of garlic extract on temporal characteristics of. The metabolic characteristics of the rats, including plas. Characteristics of spontaneously hypertensive, wistar. Evaluation of aphrodisiac activity of vigrx in male. Journal of cell and animal biology sperm characteristics. Characteristics of spontaneously hypertensive, wistar kyoto and munich wistar rats bred in brazil. Carbamazepine evoked reproductive toxicity in male wistar.

Water and standard laboratory rat diet ashirwad pvt ltd, chandigarh, india were given ad libitum. Baseline hematology and clinical chemistry values for charles river wistar rats crl. Fourteen female wistar rats of average weight of 235 g used for the study were divided into 2 groups of 7 rats each. Therefore, the effects of the maternal hvdiet on tissue mechanisms regulating insulin resistance in offspring part 1 and on characteristics of in the dams mets and their second litter l2 offspring part 2 were examined. Twelve male wistar rats were grouped into 2 groups of six each control and tartrazinetreated groups. The rats were divided into four groups a, b, c and d treated with graded doses 100, 200, 400 and 0 mgkg respectively of saponin extract of v. Yacon product pby modulates intestinal constipation and.

The spraguedawley strain came from crosses between wistar females and a hybrid male whose origins are unknown. Characterization of six rat strains rattus norvegicus by. Doseresponse characteristics in spontaneously hypertensive and normotensive wistar rats. Neurochemical characteristics of the effects of delta. Hematological characteristics of the bb wistar rat hematological characteristics of the bb wistar rat wright, james r yates, allan j shah, niranjan t neff, john c covey, david w thibert, pierre 19830101 00. Limitations of the c6wistar rat intracerebral glioma model. Gamerman lc, rosenkranz a, schor n, ghiraldini ma, jurkiewicz a, ajzen h, ramos ol.

It is the most widely used rat model for biomedical research. Index of major rat strains, with histories and strain characteristics. Summary the spontaneously hypertensive rat shr initially bred in kyoto is the most widely studied animal model of essential hypertension. The animals were exposed to 12 h light and 12 h dark. Aug 29, 2019 wistar rats have different characteristics, such as genetic variations and distinct physiological functions, attributable to their specific breed, and background data regarding each wistar strain are important for obtaining accurate results in toxicological and pharmaceutical studies. Chlorophytum borivilianum safed musli root extract. Comparative morphologic and histological studies on guinea. The rats were fasted overnight prior to blood collection.

A number of rat species are used in research, contract research organizations and in the pharmaceutical industry including the wistar, sprague dawley and fischer 344. Mccormick, in a comprehensive guide to toxicology in nonclinical drug development second edition, 2017 wistar rats. Longevans rat the longevans rat is an outbred rat developed by drs. The laboratory rat, like its wild counterpart, is an extremely intelligent animal, probably more so than the other rodents commonly used for biomedical research. It is characterized by its wide head, long ears, and a tail length that is always less than its body length. The wistar rat is currently one of the most popular rats used for laboratory research.

Laboratory rats introduction origin and development. First, two adult rat groups aged 90 d were studied. Mean sem activity scores in wistar, wky, and wkha male rats treated with either saline panel a or 1, 2, or 5 mgkg methylphenidate panels in b prior to exposure to a novel open field. The aim of this study was to evaluate the effects of a diet containing gm soybean meal rur on male and female wistar rats. The open field test oft was carried out on wistar and spraguedawley rats between the ages of 3 to 20 weeks. Comparative characterization of rat strains wistar, wistarkyoto. Wistar rats and the high genetic similarity between the slc. However, toxicity of nanoparticles is a subject of continued controversy, thus necessitating further studies in this direction. Together, these findings highlight the suitability of the wistar rat as an. Performance characteristics of male wistar rats fed graded. Chromaffinity was found comparable to normal medulla in only three tumors examined histochemically. These effects may be achieved through maintaining sperm antioxidant level which could be related to free.

As controls for the shr, most workers have used normotensive descendants of wistar rats from the colony in kyoto from which the shr strain was derived wistar kyoto rats, wky. Growth curve reproduction data monogamous mating according robertson. Wistar institute in philadelphia, giving rise to the ubiquitous presentday wistar strain of rats festing, 1979. The development of todays laboratory rat has been essentially an american initiative and the great majority of the strains of these animals that are presently in use throughout the scientific world have originated in the usa. Thirty male wistar rats procured from the central animal house, college of medicine, university of ibadan were used for this study. Morphometrical characteristics of ageassociated changes. Effect of vigrx on post ejaculatory interval in male albino wistar rats 29 8. Morphological characteristics and haematological studies in. Pdf morphometrical characteristics of ageassociated. In the wistar rat strain, c6 cells implanted into the brain exhibit characteristics similar to spontaneous glioblastomas.

Differences in the estrous cycles of gotokakizaki and wistar. These results suggest that thymus of aged wistar rats exhibits morphological characteristics similar to those found in aged human thymus and thus may serve as an. Cfhb wistar rats bred froman original stock supplied by carworth. White paper september 2018 the wistar hannover rat for. The wistar rat is an outbred stock, used in all fields of medical and biological research. Hematological characteristics of the bb wistar rat wright. Thirtyfive wistar rats were divided into three groups. Wistar rats are more active than others like sprague dawley rats. Control c, constipated control cc, pby not constipated and constipated pby pbyc. Characteristics of open field behavior of wistar and. The characteristics of circadian rhythms acrophase, amplitude, and mesor of lipid peroxidation products thiobarbituric acid reactive substances and antioxidants reduced glutathione, glutathione peroxidase. Some functional characteristics of adrenal medullary tumors. The rats in group a control were administered with 0.

In order to standardize the terminology to describe mammary gland neoplasia, a sys temic classification of proliferative lesions has been developed based on an extensive retrospective survey of the light microscopic features of spontaneous mammary tumors from 2165 wistar rats. Lipasinbetatrophin is differentially expressed in liver and. The study was conducted with the consent of the institutional ethics committee. Baseline hematology and clinical chemistry values for charles. Wistarst rats develop unilateral thyroid dysgenesis. At that time, the behavior of each naive rat was observed for two 3minute periods separated by an interval of 24 h. Macroscopic anatomy of the surface of the heart of albino wistar rats. Neurochemical characteristics of the effects of delta sleep. Histochemical examination of the adrenal glands demonstrated that the 55 hyperplastic and 25 neoplastic lesions of the medulla usually had little or no chromafinity. Normal sodium normal fat nsnf, normal sodium high fat nshf, high sodium normal fat hsnf, high sodium high fat hshf diet for 12 weeks. Wistar rats 220250 g body weight were purchased from the laboratory animal center of heilongjiang university of chinese medicine harbin, china and divided into two groups group a, drug group for dosed rat plasma, n 7, and group b, control group for blank rat plasma, n 7 and kept in a breeding room. Hematological characteristics of the bb wistar rat. The breeding of imported strains of isogenic rats was started in 1981 because of the lack of experimental rat models in brazil.

Ivermectin, a macrocyclic lactone, is commonly used against parasitic diseases in both animals and human beings. Genetic architecture of wistarkyoto rat and spontaneously. Pdf spermatozoa morphology and characteristics of male. Bmc oral health page 3 of 15 considerations used here granted by animal care and use committee under.

Wistar rats given methoxychlor 100 or 200mgkgday for 760 days males or 14. Limitations of the c6wistar rat intracerebral glioma. Metabolic syndrome signs in wistar rats submitted to. Balbc mice have the characteristics of easy breeding and minimal weight variations. In this study a total number of 5 guinea pigs and 5 wistar rats all adult males were used. After 14 days oral administration of the saponin extract, the rats. Following primary and booster immunization, female wistar rats developed severe arthritis, with an incidence of 83% and low variability in clinical signs. The training was jumping exercise in water environment for 20 days prior to injury, and treatment after the injury. Wistar rats 70 rats, 24 months of age and 45 rats, 30 months of age. Characteristics of nonalcoholic fatty liver disease induced in wistar rats following four different diets nicole fakhourysayegh, 1 viviane traksmayra, 2 aline khazzaka, 3 fady esseily, 4, omar obeid, 5, may lahoudzouein, 6 and hassan younes 7 1 department of nutrition, faculty of pharmacy, saint joseph university, damascus road, beirut, lebanon 2 department of pathology, faculty of. Whilst there are reported cases of laboratory and animal technicians contracting disease from laboratory rats these are relatively rare and most of them occurred several years ago before the intro duction of the highquality diseasefree animals which are widely available for use today.

These data were compared to body weight and survival data previously collected for a sprague dawley strain crl. He later established wistar institute in philadelphia that will have a major role in the development of the rat as an important laboratory animal similar to the impact the jackson laboratory had on the development of the laboratory mouse. The data were compared to the wistar rats as agerelated controls. This study demonstrates the importance of characterizing outbred rats and the need to pay ample attention to the genetic characteristics the slc. Reproductive characteristics of the female laboratory rat academic. Cytochemical characteristics of the brain of alcohol. The trial groups were classified into antemortem the exposure time of 20 min and postmortem groups exposure time until fatal outcome. Intracranial rat glioma models are a useful method for evaluating the efficacy and toxicity of novel therapies for malignant glioma. The present study on biochemical effects of ivermectin in wistar albino rats was undertaken to evaluate if it is toxic to the host. Wistar outbred rats show close genetic similarity with. The aim is to study the effect of tartrazine e102 synthetic food colour on the antioxidant status of testis of wistar rats. The spraguedawley, fischer 344, wistar, and longevans strains of rats are those most commonly used in research on aging.

Main and interactive effects of fat and sodium contents of. Complete blood counts, differential white blood cell and platelet counts were performed on male and female bb wistar diabetic rats bbwd, their nondiabetic siblings bbwnd and outbred wistar rats of the line from which the bb wistar rats were derived. The spermatozoa characteristics of wistar rats in groups a control, b treated with chloramphenicol for 20 days and c treated with chloramphenicol for 25 days are as presented in table i. Comparative evaluation of the sperm characteristics and morphology of adult wistar rats fed either low or normal proteinenergy diets and orally dosed with aqueous cuscuta australis extracts 1omirinde, j.