scholarly journals The Effect Of Intrauterine Hypoxia On Testicular Reproductive Function

2021 ◽  
Vol 10 (2) ◽  
Author(s):  
Tatiana V. Palatova ◽  
Alla B. Bucharskaya ◽  
Anna V. Medvedeva ◽  
Elena S. Voronina ◽  
Svetlana S. Pakhomy ◽  
...  
Keyword(s):  
Reproductive Function ◽  
Female Rats ◽  
Laboratory Animals ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Ki 67 ◽  
Proliferation Markers ◽  
Antenatal Hypoxia ◽  
Weak Expression ◽  
Tubule Diameter

Goal — to assess the effect of antenatal hypoxia of various origins on the morphology and reproductive function of the testes of newborn and mature rats in experiment. Material and Methods — In experiments 15 white outbred female rats aged 4 to 10 months with a weight of 200±30 g were used. Laboratory animals were randomly divided into 2 experimental and 1 control groups, 5 females each. The first group underwent normobaric hypoxia throughout pregnancy (21 days). Hypoxia modeling was conducted in accordance with the method of N.N. Karkishchenko (2010). The second group underwent hemic hypoxia during the second and third week of pregnancy, in accordance with the method of L.M. Sosedova (2012). The third (control) group was not exposed to any effect throughout pregnancy. Results — in the testicles of newborn rats of the experimental groups, the decrease of tubule diameter was observed, the increase of stroma area and development of interstitial edema were noted. In the group of hemic hypoxia, a significant decrease in the number of Leydig cells was noted. In the tissues of the testicles of mature rats, who underwent antenatal hypoxia, a decrease of tubule diameter, a significant decrease in the spermatogenesis index and a decrease of spermatogonia number were noted. The developed damage of spermatogenic epithelium in experimental groups of newborns and mature rats was confirmed by marked expression of the apoptosis marker (Bax), weak expression of proliferation markers (Ki-67) and receptor of receptor of fibroblast growth factor (FGFR). Conclusion — in animals with chronic hypoxia of various origins, there is an inhibition of spermatogenesis and a violation of the spermatogenetic function of the testicular seminiferous tubules.

Toxicological evaluation of hydroethanol leaf extract of Pupalia lappacea (Linn.) Juss. (Amaranthaceae) in rodents

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Murtala Akanji Abdullahi ◽  
Elijah Oladapo Oyinloye ◽  
Akinyinka Alabi ◽  
Aderonke Adeyinka Aderinola ◽  
Luqman Opeyemi Ogunjimi ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Density Lipoprotein ◽  
Serum Testosterone ◽  
Female Rats ◽  
Male Rats ◽  
Laboratory Animals ◽  
Serum Testosterone Level ◽  
Control Group ◽  
Toxicological Evaluation ◽  
Liver And Kidney

Abstract Objectives Several studies have established the ethnobotanical benefits of Pupalia lappacea (PL) in laboratory animals without extensive toxicological evaluation of its safety profiles. Thus, an extensive toxicological investigation of sub-chronic oral administration of the hydroethanol leaf extract of P. lappacea in rodents was carried out in this study. Methods Different groups of rats were treated orally with the extract (10, 50 and 250 mg/kg) daily for 90 consecutive days. The control group received distilled water (10 mL/kg). After 90 days, some rats were left for additional 30 days without treatment for reversibility study. Blood and organs samples were collected for different evaluations at the end of study periods. Results The extract decreased the bodyweights, feeding and water intakes in female rats. PL increased the weights of the liver and kidney in male rats. PL increased the red blood cell (RBC), packed cell volume (PCV), hemoglobin (Hb), triglycerides (TRIG), cholesterol and high density lipoprotein (HDL) contents in rats. PL (250 mg/kg) significantly reduced the sperm motility and serum testosterone level. Cyto-architectural distortions of the testes, liver and spleen were visible. Conclusions The findings showed that P. lappacea is relatively safe at lower doses but cautions should be taken at higher dose.

scholarly journals Expression of Ki-67, PCNA markers and the apoptotic index in the inflammatory bowel disease in dogs and its diagnostic values

2017 ◽  
Vol 73 (9) ◽  
pp. 567-571
Author(s):  
Andrzej Rychlik ◽  
Marcin Nowicki ◽  
Marta Szweda ◽  
Ewa Kaczmar
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Apoptotic Index ◽  
Control Group ◽  
Ki 67 ◽  
Proliferation Markers ◽  
Diagnostic Values ◽  
Inflammatory Bowel ◽  
Severity Of The Disease ◽  
Degrees Of Severity

The aim of this study was to determine the expression of Ki-67 and PCNA proliferative antigens and the apoptotic index in dogs with various degrees of severity of inflammatory bowel disease (IBD), and to evaluate the applicability of these markers in diagnosing the disease. The study was performed on 28 dogs of different breeds, both sexes, with body weights of 10 to 20 kg, aged 2 to 10 years. The animals diagnosed with IBD were divided into four groups of 7 dogs each, including three groups characterized by various degrees of severity of IBD and a control group. The expression of Ki-67 and PCNA antigens was determined immunohistochemically, and the apoptotic index was expressed as the number of TUNEL-positive lamina propria cells in the duodenum, jejunum and the colon. Regardless of its form, IBD affected the expression of the analyzed proliferation markers and apoptosis in duodenal, jejunal and colonic mucosa, but most of the analyzed parameters were not correlated with the severity of the disease. The severity of IBD was correlated only with the expression of Ki-67 in duodenal villi. The results of the study point to the limited applicability PCNA and the apoptotic index in differentiating and evaluating the progression of IBD in dogs. The estimation of Ki-67 expression may be useful in the evaluation of the severity of IBD in dogs.

scholarly journals Protective effects of curcumin against methotrexate-induced testicular damage in rats by suppression of the p38-MAPK and nuclear factor-kappa B pathways

2021 ◽  
Author(s):  
Leyla Kilinc ◽  
Yesim Hulya Uz
Keyword(s):  
Body Weight ◽  
P38 Mapk ◽  
Seminiferous Tubule ◽  
Nuclear Factor Kappa B ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Nuclear Factor ◽  
Testicular Damage ◽  
Space Width ◽  
Tubule Diameter

Objective: Methotrexate (MTX), is a commonly used chemotherapeutic agent. This study aimed to investigate the possibility that curcumin (CMN) protects against MTX-induced testicular damage by affecting the phospho (p)-p38 mitogen-activated protein kinase (MAPK) and nuclear factor-kappa B (NF-kB) signaling pathways. Methods: Male Wistar albino rats were subdivided into three groups. The control group was given an intragastric (ig) administration of dimethyl sulfoxide (DMSO) daily for 14 days, the MTX group was given a single intraperitoneal (ip) dose of MTX (20 mg/kg) on the 11th day, and the MTX+CMN group was given ig CMN (100 mg/kg/day, dissolved in DMSO) for 14 days and a single ip dose of MTX (20 mg/kg) on the 11th day. Results: The animal weights, the seminiferous tubule diameter, and germinal epithelium height significantly decreased in the MTX group compared to the control group. The testes weight and the ratio of the testes to body weight did not change, whereas the number of seminiferous tubules and the interstitial space width increased significantly in the MTX group. The number of phospho-p38 (p-p38) MAPK immunopositive cells and the immunoreactivity of NF-kB also increased in the MTX group compared to the control group. Conclusion: CMN prevented the MTX-induced decreases in the body weight, seminiferous tubule diameter, and the germinal epithelium height, while significantly reducing the number of histologically damaged seminiferous tubules and the interstitial space width changes due to MTX. CMN also reduced the number of p-p38 MAPK immunopositive cells and the NF-kB immunoreactivity.

A Recombinant Humanized Monoclonal Antibody for Treatment of Endometriosis in a Rat Model

2011 ◽  
Vol 3 (3) ◽  
pp. 143-150
Author(s):  
Hatice Işık ◽  
Ozlem Moraloglu ◽  
Sevtap Kilic ◽  
Ali Seven ◽  
Muzaffer Caydere ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Rat Model ◽  
Female Rats ◽  
Control Group ◽  
Ki 67 ◽  
Beneficial Effects ◽  
Anti Vegf ◽  
Humanized Monoclonal Antibody ◽  
Group A ◽  
Group B

Aim Angiogenesis plays an important role in the pathogenesis of endometriosis. Thus, the inhibition of angiogenesis may prevent endometriosis. Bevacizumab is a recombinant humanized monoclonal antibody against VEGF. The aim of this study is to investigate the efficacy of anti-VEGF therapy on the prophylaxis and treatment of endometriotic foci in a rat model. Methods This experimental study is prospective, randomized, and placebo-controlled. Thirty-six Wistar-Albino female rats were divided into 3 groups. Experimental endometriosis was induced by the implantation of autologous endometrial tissue. The bevacizumab administration route was intraperitoneal. Group A was the prophylaxis group; Group B was the treatment group, and Group C was the control group. The volumes of the implants as well as their VEGF and Ki-67 immunohistochemical staining are main outcome measures. Results The volumes of the lesions were smaller in Group A than Group C [P<.05]. The volumes of endometriotic foci in Group B were smaller than in Group C [P<.05]. Bevacizumab caused regression and atrophy of the endometriotic lesions. After the treatment the histopathologic and immunohistochemical scores in Group B were less than before treatment and less than the scores in Group C. Conclusions Bevacizumab treatment had a regressive effect on the endometriotic implants. As an anti-VEGF agent, bevacizumab has beneficial effects on the prophylaxis and treatment of endometriosis.

Effect of neonatal administration of the opioid peptide dalargin on long-term cerebral consequences of antenatal hypoxia

2018 ◽  
pp. 31-36
Author(s):  
А.А. Симанкова ◽  
Е.Н. Сазонова ◽  
О.А. Лебедько
Keyword(s):  
Free Radical ◽  
Female Rats ◽  
Male Rats ◽  
Brain Morphology ◽  
Control Group ◽  
Albino Rats ◽  
Antenatal Hypoxia ◽  
Area Ca1 ◽  
Hippocampal Area

Цель исследования - анализ влияния d/m-агониста даларгина (Tyr - D-Ala - Gly - Phe - Leu - Arg) на морфофункциональные показатели головного мозга у половозрелых белых крыс Вистар, перенесших антенатальную гипоксию. Методика. Крысы-самки подвергались воздействию гипобарической гипоксии с 15-х по 19-е сут. гестации. Потомство было разделено на 2 группы: 1) животным группы «Антенатальная гипоксия» (n = 12) интраперитонеально вводили 0,1 мл физиологического раствора с 2-х по 6-е сут. жизни; 2) животным группы «Антенатальная гипоксия + даларгин» (n = 17) в те же сроки интраперитонеально вводили даларгин в дозировке 100 мкг/кг. Группа «Контроль» (n = 25) включала потомство крыс-самок, не подвергавшихся действию гипоксии в период гестации. В гистологических препаратах головного мозга 60-суточных крыс-самцов исследуемых групп определяли площадь ядер и ядрышек нейронов II и V слоев неокортекса и поля СА1 гиппокампа. Активность процессов свободнорадикального окисления в гомогенатах головного мозга определяли методом хемилюминисценции. Поведенческие реакции оценивали в тестах «Открытое поле» и «Приподнятый крестообразный лабиринт». Результаты. У животных группы «Антенатальная гипоксия» выявлено уменьшение массы тела и массы головного мозга; уменьшение числа ядрышек в нейронах II слоя неокортекса и гиппокампа, уменьшение площади ядер нейронов V слоя неокортекса и снижение площади ядрышек нейронов всех исследованных зон; повышение локомоторной активности; активация свободнорадикального окисления в гомогенатах мозга. Введение даларгина уменьшало морфофункциональные церебральные последствия антенатальной гипоксии. Заключение. Показан эффект даларгина для коррекции отдаленных церебральных последствий перенесенной антенатальной гипоксии в эксперименте. The aim of the study was to analyze the effect of d/m-agonist dalargin (Tyr-D-Ala-Gly-Phe-Leu-Arg) on brain morphology and function in mature albino rats exposed to antenatal hypoxia. Methods. Female rats were exposed to hypobaric hypoxia from gestation day 15 to day 19 day. The offspring was divided into 2 groups: 1) the first group, antenatal hypoxia (n = 12), where rats were injected with 0.1 ml of saline from 2 to 6 days of life, 2) the second group, antenatal hypoxia + dalargin (n = 17), where rats were injected with the peptide dalargin (100 mg/kg, i.p.) from 2 to 6 days of life. The control group (n = 25) included offspring of intact female rats. The size of neuronal nuclei and nucleoli in neocortical layers II and V and hippocampal area CA1 were measured on histological slides of the brain from 60-day old male rats. Intensity of free radical oxidation was determined by chemiluminescence in brain homogenates. Rat behavior was evaluated using the open field test and the elevated plus-maze test. Results. Antenatal hypoxia decreased body weight and weight of cerebral hemispheres in 60-day old male albino rats compared with the control. Antenatal hypoxia decreased the number of neuronal nucleoli in layer II of the neocortex and hippocampal area CA1, reduced neuronal nucleus size in layer V of the neocortex and the total area of neuronal nucleoli in all examined brain areas of 60-day-old male albino rats. Animals of this experimental group displayed increased motor activity. The chemiluminescence study of brain homogenates from 60-day-old animals showed increased free radical generation in brain tissues. Administration of dalargin reduced the morphofunctional cerebral consequences of antenatal hypoxia. Conclusion. Dalargin can be used for correcting long-term cerebral consequences of antenatal hypoxia.

scholarly journals Combination of Melatonin and Metformin Hydrochloride for Treatment Polycystic Ovarian in Female Rats

2018 ◽  
Vol 44 (1) ◽  
pp. 10
Author(s):  
Ana Janaina Jeanine Martins de Lemos-Jordão ◽  
Fabiano Sellos Costa ◽  
Christina Alvez Peixoto ◽  
Álvaro Aguiar Coelho Teixeira ◽  
Solange Bezerra da Silva ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Academic Research ◽  
Female Rats ◽  
Laboratory Animals ◽  
Control Group ◽  
Metformin Hydrochloride ◽  
Morphological Identification ◽  
Ovary Syndrome ◽  
Implantation Sites

Background: Polycystic ovary syndrome (PCOS) is a gynecological endocrine disorder, results in menstrual abnormalities, androgynism and infertility. In the case of women or others animals with PCOS wishing to treat infertility with the aim of becoming pregnant, the most commonly used is metformin hydrochloride. Recent studies have analyzed the combination of metformin hydrochloride with melatonin in oncological treatment but not to treatment of polycystic ovary syndrome (PCOS). The aim of the present study was to analyze the effectiveness of the combination of metformin hydrochloride and melatonin in the treatment of PCOS to improve the fertility of rats and your hormonal alterations.Materials, Methods & Results: This study was carried out in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. The protocol was approved by the Committee on the Ethics of Animal Experiments of the University of Federal Rural of Pernambuco (Permit Number: 23081.009130/2010). A total of 50 albino Wistar rats were used. The animal laboratory of an academic research environment, were randomly separated into five groups consisting of 10 females each. After inducing PCOS, the rats were treated with metformin hydrochloride, and/or melatonin, and the results compared with standard and ultrasound confirmed. The physiological similarities were confirmed by our academic researchers morphological science, and published to the association results of effects syndrome induction through constant lighting in reputable magazine recently. This article was analyzed histological of the implantation sites and ovaries, and the estradiol and progesterone levels on the seventh day of gestation, and the other rats for monitoring pregnancy and morphological identification of possible fetal abnormalities, weight measurement and quantification of offspring. The rats were anaesthetized with intraperitoneal injections of ketamine hydrochloride (80 mg/kg) and xylazine (6 mg/kg) to allow analysis of the reproductive organs. Main outcome measures: The study included histopathology, histochemical and quantitative (of the implantation sites) tests, ultrasound analysis, weight benchmarking and ovarian histology tests, as well as comparison of serum estradiol and progesterone levels, and the morphological assessment of offspring. Results paper shows pharmacological treatment reduced the time needed for pregnancy, increased the plasma progesterone levels, the number and weight of offspring, and reduced plasma estrogen levels and collagen fiber grade, improving blastocyst-endometrium interaction and fetal development.Discussion: Our team of researchers confirmed in a previous paper; in addition, the main experimental model used in research about PCOS in recent years, and considered appropriate combination of the drugs caused a physiological reaction similar to responses identified in healthy rats without induction of the POS control group. However, the clinical and physiological effectiveness of the combination should be further explored, especially with respect to the possible side effects on offspring. The treatment with a combination of metformin hydrochloride and melatonin was more effective against hormonal alterations produced by PCOS, allowing a normalization of biochemical parameters during pregnancy, than monotherapeutic treatment with these drugs. In conclusion, proposed drug combination is a viable option to treatment of polycystic ovary syndrome and improved fetal development. This article allows suggest that further research should be conducted to examine effects associated with these drugs in the treatment of diseases of the female reproductive system experimentally. Only such treatment later in animals and humans suggest.

The influence of the feeding Flour Beetle Tribolium confusum-infested fodder on the selected indices of the health status of rats

2015 ◽  
Vol 18 (3) ◽  
pp. 499-506 ◽  
Author(s):  
Ł.B. Lis ◽  
T. Bakuła
Keyword(s):  
Health Status ◽  
Maximum Level ◽  
Tribolium Confusum ◽  
Female Rats ◽  
Farm Animals ◽  
Laboratory Animals ◽  
Control Group ◽  
Internal Organs ◽  
Beetle Population ◽  
The Impact

Abstract The present experiment was designed to demonstrate differences in the degree of fodder contamination with benzoquinones at various Tribolium confusum levels, the impact of infested feed on the beetle population and the impact of infested feed on the health status of rats. The feeding studies were done on female rats divided into 3 groups: a control group and two experimental groups. Experimental groups were fed with a fodder infested by 150 individuals of T. confusum per kg (group D1) and 300 individuals of T. confusum per kg (group D2). The insects were grown in the fodder for 5 months and the contaminated fodder was given to the laboratory animals for 8 weeks. After that period the rats were sacrificed, blood was drawn for morphological, biochemical and immunological analyses, as well as the samples of internal organs were taken for histopathology. Regardless of initial degree of infestation, after 5 months incubation period the content of benzoquinones in fodder reached the maximum level that reduced beetle population. The resulting concentration to benzoquinones had no effect upon feed intake nor growth of rate, whereas caused the presence of these substances in feces, urine and also in tissues which was indicated by pathological lesions observed in the study. The results obtained point to the possibility of the benzoquinones accumulation in the organisms of farm animals fed fodder containing pests.

scholarly journals Study of the parameters of acute toxicity of the drug “Devimectin 1 %” with a single subcutaneous injection in white rats

2020 ◽  
Vol 22 (100) ◽  
pp. 28-31
Author(s):  
Yu. R. Hunchak ◽  
B. V. Gutyj ◽  
R. M. Sachuk ◽  
Ya. S. Stravsky
Keyword(s):  
Body Weight ◽  
Acute Toxicity ◽  
Subcutaneous Administration ◽  
Female Rats ◽  
Laboratory Animals ◽  
Control Group ◽  
Main Experiment ◽  
Sterile Saline ◽  
White Rats ◽  
Therapeutic Properties

In the study of the drug for injectable use – “Devimectin 1 %”, together with the confirmation of therapeutic properties, it is necessary to determine the LD50 obtained in the study of acute toxicity. The aim of the work was to study the acute toxicity of “Devimectin 1 %” in white rats by injection. To fulfill this goal on the principle of analogues was formed control and three experimental groups of 4 animals each (n = 4). The drug was administered in doses of 5000.0; 10000.0; 20000.0 mg/kg body weight in absolute weight of the drug once subcutaneously in the withers. The control animals were injected subcutaneously with sterile saline 1.0 cm3. After taking into account the results of the previous experiment in the main experiment, 7 experimental groups were formed, whose rats were injected subcutaneously with “Devimectin 1 %” in doses of 5000.0; 7500.0; 10000.0; 12500.0; 15000.0; 17500.0 and 20000.0 mg/kg body weight, as well as a control group to which animals were injected with sterile saline with a volume of 1.0 cm3. There were 6 animals in each group (n = 6). It was found that for the administration of the drug at a dose of 5000 mg / kg body weight, no animal died, for 10000.0 and 20000.0 mg/kg body weight, respectively, one and 4 animals died. Death occurred for 2–6 days depending on the administered dose. In the main experiment with subcutaneous administration of “Devimectin 1 %” at a dose of 5000.0 mg/kg body weight during the 14-day period of the study, no animal died; for the introduction of the drug at a dose of 7500.0 mg/kg killed one animal; for 10000.0 – 2; for 12500.0 and 15000.0 – 3 rats; for 17500.0 – 5 rats and for the introduction of the drug at a dose of 20000.0 mg/kg body weight, all experimental animals died. The death of laboratory animals occurred for 2–6 days depending on the administered dose. According to the results of studies, it was found that the LD50 of the drug “Devimectin 1 %” under the conditions of its single subcutaneous administration to female rats is 12881.20 ± 1390.54 mg/kg, LD10 – 5978.43 mg/kg, LD16 – 7495.68 mg/kg, LD84 – 18266.73 mg/kg, LD90 – 19783.98 mg/kg, LD100 – 20959.49 mg/kg body weight, respectively. Therefore, the drug “Devimectin 1%” when administered subcutaneously can be classified as toxicity class VI – substances relatively harmless (LD50subcut> 4500,0 mg/kg). Further studies will be the next step in pre-registration trials to examine the subacute toxicity of “Devimectin 1 %”.

scholarly journals The Impact of Dust and Salt Aerosols of the Aral Sea on the Tissues of Rat Testes in the Experiment

2020 ◽  
Vol 8 (A) ◽  
pp. 452-456
Author(s):  
Assylgul Suleimen ◽  
Roza Yesimova ◽  
Bibigul Rakhimova ◽  
Gulnaz Suleimen ◽  
Aidana Yerubay ◽  
...  
Keyword(s):  
Climate Change ◽  
Reproductive Function ◽  
Aral Sea ◽  
Male Rats ◽  
Chemical Pollution ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Negative Effect ◽  
Histological Characteristics ◽  
The Impact

BACKGROUND: The Aral Sea crisis is recognized as one of the global environmental problems of our time. The extreme environmental situation in the region is caused by massive chemical pollution of the territory for several decades by high doses of pesticides, herbicides, dumping of industrial waste into the rivers that feed the Aral Sea. As a result of the Aral Sea desiccation, aridization of the territory, climate change, and salinization of soil and water occurred. This led to increased mineralization of precipitation, climate change, the spread and deposition of dust on an area of about 25 million hectares. One of the factors in reducing fertile activity in humans is a decrease in spermatogenesis activity. Based on identified trends, WHO is forced to review the main indicators of spermograms in the direction of their reduction. AIM: To study the effect of dust and salt aerosols of the Aral Sea on reproductive function, rat testes were studied after 7 and 24 days of inhalation administration. MATERIAL AND METHODS: Some morphometric parameters of the testes were evaluated: The diameter of the convoluted seminiferous tubules and the thickness of the germinal epithelium. The obtained comparative morphological and histological characteristics of the testes of the control and experimental groups indicate the negative effect of the components of dust and salt aerosols of the Aral Sea on the reproductive function of male rats. RESULTS: The thickness of the epithelial spermatogenic layer in the second group of rats is on average 64.52 μm, which is significantly less compared to the control group (81.3 μm). The thickness of the epithelial spermatogenous layer in the third group is on average within 73.36 μm, which is significantly less than in the control group (81.3 μm), but more than in the group exposed to dust and salt aerosols for 7 days (64, 52 μm). CONCLUSION: The study revealed that the impact of dust and salt aerosols of the Aral Sea leads to a change in the morphological and histological characteristics of the testes of animals. In experimental groups, a decrease in the diameter of the convoluted seminiferous tubule and a decrease in the thickness of the epithelial spermatogenic layer were observed. This indicates the negative effect of the components of dust and salt aerosols of the Aral Sea on the reproductive function of male rats exposed to dust for 7 and 24 days.

scholarly journals Effects of Maternal Exposure to Lamotrigine during Pregnancy on Gonadal Toxicity in Fetus Rats

2020 ◽  
Vol 9 ◽  
pp. 1557
Author(s):  
Hoda Aryan ◽  
Shabnam Movassaghi ◽  
Amir Ghasemi ◽  
Roksana Darabi
Keyword(s):  
Optical Microscope ◽  
Female Rats ◽  
Vehicle Group ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Vaginal Smear ◽  
Sodium Pentobarbital ◽  
Teratogenic Effects ◽  
Crown Rump Length ◽  
Gonadal Toxicity

Background: Lamotrigine is one of the newest antiepileptic drugs that is used as one of the most common treatments in pregnancy. Since the investigation of the teratogenic effects of lamotrigine is very limited and there is no report of its teratogenic effects on fetal gonads, we aimed to investigate the teratogenic effects of lamotrigine on embryonic gonads. Materials and Methods: This study was performed on nine female Wistar female rats (8 weeks, weighing 180-200 mg). At first, the animals were inspected regularly by the preparation of vaginal smear and in the estrus phase in separate cages of mating, and after observing the vaginal plaque, were randomly divided into three groups (n=3). Control group did not receive any treatment.  In the lamotrigine group (20mg/kg), and the vehicle group (same volume of normal saline) were injected intraperitoneally from days 8 to 13 of pregnancy. On day 20, animals were anesthetized by sodium pentobarbital (40 mg/kg), and embryos were extracted through laparotomy. First, fetuses were weighed, and their height (crown-rump length) was measured. Then the gonads of the fetuses were removed and, stained with H & E, and examined by optical microscope. Results: Our results showed that in the lamotrigine group, the number of seminiferous tubules and Sertoli cells in the male embryos and the number of oocytes in the female embryos decreased significantly compared to the control and vehicle groups (P≤0.05). Conclusion: The results of this study showed that treatment with 20 mg/kg lamotrigine in mothers during pregnancy could cause damage to fetal gonads. [GMJ.2020;9:e1557]

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