scholarly journals Profil Reproduksi Jantan Tikus (Rattus norvegicus Berkenhout, 1769) Galur Wistar Stadia Muda, Pradewasa, dan Dewasa

2018 ◽  
Vol 7 (1) ◽  
pp. 29-36
Author(s):  
Laksmindra Fitria ◽  
Mulyati Muyati ◽  
Cut M. Tiraya ◽  
Andreas S. Budi
Keyword(s):  
Animal Model ◽  
Body Mass ◽  
Testosterone Level ◽  
Reproductive System ◽  
Wistar Rats ◽  
Sperm Concentration ◽  
Preclinical Study ◽  
Reproductive Age ◽  
Normal Male ◽  
Sperm Analysis

Reproductive biology is one of prominent studies in biomedical research. Disruption in reproductive system becomes a major problem both in humans and animals. Preclinical study using animal model is therefore needed to initiate clinical studies and diagnostic purposes. Wistar rats are commonly used for research in male and female reproductive system due to their representation of mammal biological system. For that purpose, their reproductive age must be determined to meet the aim of studies. This research was carried out to provide reproductive profile of normal male Wistar rats from different ages, furthermore categorizing them into three checkpoints: young, subadult, and adult. Variables observed including: body mass, testosterone level, reproductive glands index, spermatogenesis, and sperm analysis. Results demonstrated that body mass, testosterone level, and reproductive glands index increase with age (significant at the age of 6–7 weeks). Spermatogenesis is initiated at the age of 7 weeks, characterized by significant increase in the number of spermatogenic cells which then maintained at subsequent ages. Spermatozoa has been produced at the age of 6 weeks, however still in low concentration, immotile, and not viable. The quantity and quality of sperm also increase with age. At the age of 8–9 weeks, sperm concentration significantly increases, progressive movement occurs, and viability is close to 100 %. In conclusion, rats aged 4–5 weeks can be categorized as young, sexually immature; rats aged 6–7 weeks are subadult, the reproductive system has well-developed (puberty) but spermatozoa are still immotile (infertile); rats aged 8–9 weeks are adult, sexually mature, and ready for mating, thus suitable as animal model for the study of reproductive system.Key words: Wistar rats, reproductive system, testosterone, spermatogenesis, spermatozoa. 

Features of metabolic and hormonal abnormalities in women with metabolic syndrome at the stage pregrada

2017 ◽  
pp. 57-61
Author(s):  
O.A. Dyndar ◽  
Keyword(s):  
Metabolic Syndrome ◽  
Body Mass Index ◽  
Body Mass ◽  
Reproductive System ◽  
The Body ◽  
Reproductive Age ◽  
High Density Lipoproteins ◽  
Women Of Reproductive Age ◽  
Female Population ◽  
Number Of Components

The problem of obesity and metabolic syndrome among the female population of Ukraine is extremely important, given the current trend toward increasing age of realization of reproductive function,. The prevalence of metabolic syndrome among women of reproductive age is 6–35%, fertility problems are found in 30-35% of women. The objective: to study the characteristics of metabolic disorders and hormonal condition of the reproductive system in women with obesity and the metabolic syndrome on pregravidarity stage depending on the body mass index and severity of metabolic syndrome. Patients and methods. We examined a total of 124 women with obesity and metabolic syndrome that appealed on pregravidar stage and 53 women who had no history of somatic and gynecological pathology. Antropometric studies, determination of blood pressure, examination of carbohydrate and lipid metabolism, evaluation of the endocrine status of the reproductive system, ultrasound examination of small pelvis organs were done. Results. In women of reproductive age, we observed increase of total cholesterol, triglycerides, low-density lipoproteins and decrease high-density lipoproteins, with a predominance of IIb and IV types of dyslipidemia. Insulin resistance was diagnosed in 28.3% of women And 47.4% – II and in 69.7% with III degree of obesity. Metabolic syndrome was diagnosed in 79.2% of patients with obesity of I, in 94.7% – II 100% III. The number of components of metabolic syndrome correlate directly proportional to the severity of obesity. The index of fertility with III degree of obesity increased to 2.7, hypoestrogenia marked with And hyperestrogenia from 50.7% of women in II and III degree of obesity, progesterona failure identified at 66.9%, hyperandrogenism in 58.8%, reduced sex-binding globulin in 83.0% of the observations. Conclusion. Pathological changes of the hormonal status of the female reproductive system on prepregnansy stage is directly proportional to depend on the body mass index number of components of metabolic syndrome and dysmetabolic disorders. Key words: obesity, metabolic syndrome, pregnancy planning.

scholarly journals Effect of an Aqueous Extract of Alchornea Cordifolia (Euphorbiacea) Leaves on Sperm Parameters and Reproductive Function of Male Wistar Rats

2021 ◽  
Vol 17 (17) ◽  
Author(s):  
Kone Allassane ◽  
Gnahoue Goueh ◽  
Diabate Daouda ◽  
Kouakou Koffi
Keyword(s):  
Traditional Medicine ◽  
Reproductive System ◽  
Wistar Rats ◽  
Sperm Quality ◽  
Sperm Count ◽  
Sperm Concentration ◽  
Reproductive Function ◽  
Positive Effects ◽  
Male Wistar Rats ◽  
Reproductive Male

Alchornea cordifolia (euphorbiaceae) is a tree whose leaves are used in traditional medicine to cure several health problems. Little information, however, exist on the effects of this herb on the male reproductive system. In order to assess the effect of Alchornea cordifolia on reproductive male parameters and testosterone production, twenty-four male wistar rats divided into four groups of six rats were used. The aqualus extract of Alchornea cordifolia was administered at a dose of 100 mg/kg of bw, 200 mg/kg of bw, and 400 mg/kg of bw per day, orally for 60 days. A significant increase in androgen-dependent organs, testosterone quantity, mobility, and sperm concentration was observed at doses of 200 mg/kg of bw and 400 mg/kg of bw. Only the unwinger sperm count significantly increased at the 100 mg/kg of bw dose. These results revealed that the aqualius extract of the leaves of Alchornea cordifolia has the potential to improve sperm quality and have positive effects on the reproductive system.

EFFECT OF KAGOCEL PREPARATION ON THE GENERATIVE FUNCTION OF EXPERIMENTAL ANIMALS AT ITS ADMINISTRATION IN THE INFANTILE PERIOD OF THEIR DEVELOPMENT

2017 ◽  
pp. 42-49
Author(s):  
T. A. Borovskaya ◽  
M. E. Poluektova ◽  
A. V. Vychuzhanina ◽  
V. A. Mashanova ◽  
Yu. A. Shchemerova
Keyword(s):  
Toxic Effect ◽  
Reproductive System ◽  
Safety Profile ◽  
Therapeutic Dose ◽  
Antiviral Drug ◽  
Experimental Studies ◽  
Reproductive Age ◽  
Pathological Changes ◽  
Pediatric Practice ◽  
Experimental Animals

In experimental studies on rats (males, females) at their infantile stage starting from 10 days, a potential delayed toxic effect of the antiviral drug Kagocel on the reproductive system was studied. The drug was administered for 12 days in a therapeutic dose and at a dose 10-fold higher than the therapeutic one. Reproductive safety was estimated after animals reached the reproductive age (2.5 months). It was found out that the drug, when administered in both doses, does not decrease the fertility of animals, does not induce morphological and pathological changes in the sex glands, and does not have toxic effect on the offspring. Obtained data characterize Kagocel as a preparation with a wide reproductive safety profile and show that it can be used in pediatric practice for infants.

Low Serum Levels of Fibroblast Growth Factor 2 in Gunn Rats: A Hyperbilirubinemia Animal Model of Schizophrenic Symptoms

2020 ◽  
Vol 19 (7) ◽  
pp. 503-508
Author(s):  
Maiko Hayashida ◽  
Sadayuki Hashioka ◽  
Kenji Hayashida ◽  
Shoko Miura ◽  
Keiko Tsuchie ◽  
...  
Keyword(s):  
Animal Model ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Wistar Rats ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Normal Strain ◽  
Fibroblast Growth ◽  
Gunn Rats

Background: Fibroblast growth factor (FGF) 2 (also referred to as basic FGF) is a multifunctional growth factor that plays a pivotal role in the pro-survival, pro-migration and pro-differentiation of neurons. Method: Because alterations in FGF2 levels are suggested to contribute to the pathogenesis schizophrenia, we investigated serum levels of FGF2 in the Gunn rat, a hyperbilirubinemia animal model of schizophrenic symptoms. Results: The enzyme-linked immunosorbent assay showed that the serum levels of FGF2 in Gunn rats were 5.09 ± 0.236 pg/mL, while those in the normal strain Wistar rats were 11.90 ± 2.142 pg/mL. The serum FGF2 levels in Gunn rats were significantly lower than those in Wistar rats. We also measured serum levels of unconjugated bilirubin (UCB) and found a significant negative correlation between UCB and FGF2 at serum levels in all the rats studied. Conclusion: Since it is known that FGF2 regulates dopaminergic neurons and have anti-neuroinflammatory effects, our finding suggests that low FGF2 levels may contribute to the pathogenesis of schizophrenia, in which disbalanced dopamin-ergic signaling and neuroinflammation are supposed to play certain roles.

scholarly journals Serum Metabolomics in PCOS Women with Different Body Mass Index

2021 ◽  
Vol 10 (13) ◽  
pp. 2811
Author(s):  
Katarzyna Ożegowska ◽  
Szymon Plewa ◽  
Urszula Mantaj ◽  
Leszek Pawelczyk ◽  
Jan Matysiak
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
High Performance ◽  
Polycystic Ovary ◽  
Multiple Reaction Monitoring ◽  
Reproductive Age ◽  
Healthy Controls ◽  
Metabolic Disturbances ◽  
Hormonal Imbalance ◽  
Spectrometry Technique

Polycystic ovary syndrome (PCOS) is the most prevalent endocrine and metabolic disorder, affecting 5–10% of women of reproductive age. It results from complex environmental factors, genetic predisposition, hyperinsulinemia, hormonal imbalance, neuroendocrine abnormalities, chronic inflammation, and autoimmune disorders. PCOS impacts menstrual regularities, fertility, and dermatological complications, and may induce metabolic disturbances, diabetes, and coronary heart disease. Comprehensive metabolic profiling of patients with PCOS may be a big step in understanding and treating the disease. The study aimed to search for potential differences in metabolites concentrations among women with PCOS according to different body mass index (BMI) in comparison to healthy controls. We used broad-spectrum targeted metabolomics to evaluate metabolites’ serum concentrations in PCOS patients and compared them with healthy controls. The measurements were performed using high-performance liquid chromatography coupled with the triple quadrupole tandem mass spectrometry technique, which has highly selective multiple reaction monitoring modes. The main differences were found in glycerophospholipid concentrations, with no specific tendency to up-or down-regulation. Insulin resistance and elevated body weight influence acylcarnitine C2 levels more than PCOS itself. Sphingomyelin (SM) C18:1 should be more intensively observed and examined in future studies and maybe serve as one of the PCOS biomarkers. No significant correlations were observed between anthropometric and hormonal parameters and metabolome results.

scholarly journals SARS-CoV-2 and the reproductive system: known and the unknown..!!

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Indu Sharma ◽  
Priti Kumari ◽  
Anuradha Sharma ◽  
Subhas Chandra Saha
Keyword(s):  
Reproductive Health ◽  
Vertical Transmission ◽  
Reproductive System ◽  
Ovarian Function ◽  
Sperm Count ◽  
Sperm Concentration ◽  
Reproductive Potential ◽  
Oocyte Quality ◽  
Main Body ◽  
Close Monitoring

Abstract Background COVID-19 is the most recent zoonotic outbreak of coronaviruses. Mostly, it invades the cells of the respiratory system by binding to the receptor angiotensin-converting enzyme 2 (ACE2) which is also present in other organs like the kidney, testis, ovaries, breast, heart, and intestine, rendering them prone to be infected. The reproductive potential is a must for the sustenance of any species and it is our prime duty to safeguard the reproductive system of the present generation from such a deadly virus. The previously reported coronaviruses like severe acute respiratory syndrome coronavirus (SARS-CoV) had a detrimental impact on reproductive organs. There is a dearth of sufficient research to provide substantial evidence for the harmful effects of this novel virus on the reproductive system. Hence, our review compiles the knowledge available until now to boost research in this regard and to take the necessary steps in time. Main body of abstract Here we tried to compile all the data available on the effect of SARS-CoV-2 on the reproductive system as well as vertical transmission of the virus. All related articles published from February to August 2020 were reviewed and thoroughly analyzed. SARS-CoV-2 has been found to affect the sperm concentration and motility, thus degrading the fertility of males. In females, it is suspected that this virus affects the oocyte quality and ovarian function, resulting in infertility or miscarriage. Traces of SARS-CoV-2 virus have also been found in the breast milk of the infected mothers and the semen of infected males. Vertical transmission of SARS-CoV-2 has also been reported in some cases. Conclusion Based on the literature review, SARS-CoV-2 seems to have the potential of affecting both male and female reproductive tracts. This review brings together the findings and observations made in the area of reproductive health during the current pandemic. The reproductive system of the young population is preordained for subsequent disorders, infertility, reduced sperm count, and motility. Therefore, the research and medical practices should focus on possible vulnerability being posed by SARS-CoV-2 to the gametes and future generations. We, hereby, recommend close monitoring of young and pregnant COVID-19 patients concerning reproductive health with utmost priority.

Determination of the L-ascorbic acid requirements in Wistar osteogenic disorder Shionogi rats for prolonged carcinogenesis experiments

1996 ◽  
Vol 30 (4) ◽  
pp. 337-346 ◽  
Author(s):  
S. W. Y. Chan ◽  
P. C. Reade
Keyword(s):  
Animal Model ◽  
Ascorbic Acid ◽  
Drinking Water ◽  
Normal Level ◽  
Physical Condition ◽  
Wistar Rats ◽  
Clinical Signs ◽  
Supplement Group ◽  
Palatal Mucosa

Wistar Shionogi rats of the ( od/od) substrain with the osteogenic disorder are unable to synthesize L-ascorbic acid ( L-AA) and appear to be an appropriate animal model for studying the effect of L-AA in carcinogenesis. To determine the minimal L-AA requirements of these animals for prolonged survival in a satisfactory physical condition during experimentation, four concentrations of L-AA (0.33 g/l, 0.67 g/l, 1.67 g/l and 3.33 g/l) were administered via drinking water to four groups of animals ( n=2). Their water intake per cage was recorded three times weekly and the plasma L-AA levels were determined at the start, after 2, 4, 8 and 12 weeks and at the termination of the experiment. To simulate the procedures to be undertaken in oral mucosal carcinogenesis experiments, the animals were gently restrained and a designated amount of sterile NaCl was applied to the palatal mucosa three times a week for 26 weeks. The L-AA supplement group with the lowest concentration (0.33 g/l L-AA) achieved mean plasma levels of 7 ± 1.38 μM, approximately one-eighth that of the normal level (mean plasma L-AA level in outbred Wistar rats was found to be 58 ± 3 μM) whilst those in the higher supplement group (3.33 g/l L-AA) achieved a mean of 18 ± 1.25 μM. All of the animals employed in the present study survived for 26 weeks and showed no clinical signs of L-AA deficiency during this period.

P–061 Protective effect of melatonin against bleomycin, etoposide, and cisplatin (BEP) chemotherapy-induced testicular toxicity in Wistar rats: A biochemical, immunohistochemical and apoptotic genes based evidence

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
M Moradi ◽  
A Faramarzi ◽  
N Goodarzi ◽  
A H Hashemian ◽  
H Cheraghi ◽  
...  
Keyword(s):  
Testosterone Level ◽  
Wistar Rats ◽  
Caspase 3 ◽  
Treated Group ◽  
Serum Testosterone Level ◽  
Dependent Manner ◽  
Qrt Pcr ◽  
Tnf Α ◽  
Significant Difference ◽  
Bep Chemotherapy

Abstract Study question Does exogenous melatonin (MLT) attenuate BEP-induced damage in testicular cells and spermatogenesis in a dose-dependent manner? Summary answer Melatonin protected the testes against BEP-induced testis damage through ameliorating nitro-oxidative stress, apoptosis, and inflammation. However, there was no significant difference between melatonin-treated groups. What is known already Recently, the prevalence of testicular cancer (TC), accounting for the most common cancer among young people of reproductive age (15–40 years), has risen internationally. BEP chemotherapy has increased the 5-year survival rate of TC patients at all stages of testicular germ cell tumors to 90–95%. However, BEP creates a high incidence of male infertility and even long-term genotoxic effects, which emerges as a critical health issue. Melatonin is a well-known potent antioxidant with widespread clinical applications that recently has been giving increasing attention to its role in male sub/infertility. Study design, size, duration 60 Adult male Wistar rats were randomly assigned to six groups (n = 10/group). Group 1, 3, and 4 were injected with vehicle, 10 and 20 mg/kg of melatonin, respectively. Other groups received one cycle of bleomycin, etoposide, and cisplatin for a total of 3 weeks with or without melatonin. Melatonin administration started daily one week before BEP initiation continued on days 2, 9, and 16; and one week after the completion of the BEP cycle. Participants/materials, setting, methods Bodyweight, testes weight, Sperm parameters (count, motility, viability, and morphology), testosterone hormone level, testicular histopathology, stereological parameters, testicular level of malondialdehyde (MDA), nitric oxide (NO), and total antioxidant capacity (TAC), the expression of Bcl–2, Bax, Caspase–3, p53, and TNF-α (Real-time PCR and immunohistochemistry) were evaluated at the end of the study (day 35). Main results and the role of chance Our findings showed that melatonin restores the BEP-induced reduction in the body and testes weight (P<.05). the evaluation of quantitative analysis of the testes stereological procedures, QRT-PCR examination and immunohistochemical (IHC) staining revealed that melatonin reverses the BEP-induced impaired spermatogenesis (P<.05). Furthermore, melatonin rectifies BEP-induced disturbance on sperm count, motility, viability, and morphology. The testosterone level in the BEP-treated group was decreased significantly by comparison with the control group (P<.01). By contrast, co-administration of 10 and 20 mg/kg of melatonin could enhance the serum testosterone level significantly (P<.05). Moreover, melatonin enhanced the antioxidant status of the testis by elevating TAC and ameliorating MDA and NO levels. More notably, QRT-PCR examination indicated that melatonin therapy suppressed BEP-induced apoptosis by modulating apoptosis-associated genes such as Bcl–2, Bax, Caspase–3, p53 in the testis (P<.01). Besides, Co-administration of 10 and 20 mg/kg of melatonin with BEP regimen decreased significantly the population of p53 (54.21 ±6.18% and 51.83±8.45, respectively) and TNF-α positive cells (42.91±9.92% and 33.57±2.97, respectively) by comparison to the BEP group. Also, melatonin with low and high doses could enhance the expression of Bcl–2 protein in spermatogenic cells line (59.19±10.18%, 63.08±5.23, respectively) compared to the BEP-treated group. Limitations, reasons for caution Owing to limited laboratory facilities we were not able to perform further studies to verify the mechanism of melatonin in the specific targets by using transfection technique and transgenic. Wider implications of the findings: These findings can draw attention to the clinical application of melatonin and also suggest that melatonin may be an attractive agent for attenuating chemotherapy-associated male sub/infertility. This indolamine also may shorten the fertility recovery period in patients undergoing chemotherapy with the BEP regimen. Trial registration number N/A

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