Effect of Exposure to Mixture of Heavy Metals Arsenic, Cadmium and Lead on Reproductive Function and Oxidative Stress in Female Rats

2017 ◽  
Vol 9 (03) ◽  
Author(s):  
Choudhuri D. ◽  
Bhattacharjee T.
Keyword(s):  
Oxidative Stress ◽  
Heavy Metals ◽  
Ascorbic Acid ◽  
Reproductive Function ◽  
Reproductive Organs ◽  
Female Rats ◽  
Corpora Lutea ◽  
Oestrus Cycle ◽  
Implantation Sites ◽  
Live Fetus

Background : Toxicological consequences arising from exposure to mixtures of heavy metals especially at low, chronic and environmentally relevant doses are poorly recognised. In the present study, we evaluated effects of chronic exposure to combinations of three metals arsenic (As), cadmium (Cd) and lead (Pb) present frequently in drinking water on reproductive function and oxidative damage caused to reproductive organs of female rats. Method : Female rats were exposed to mixture of metals (As, Cdand Pb) for 90 consecutive days. The gain in body weight and weight of reproductive organs were recorded following autopsy on 91 stday. The oestrus cycle were monitored during entire treatment period. Numbers of corpora lutea, implantation sites, live fetus and survival of the fetus were evaluated in rats mated successfully with untreated male after completion of their respective treatment. Ovarian cholesterol, protein, ascorbic acid and enzyme Δ 5 -3β HSD levels were estimated. Serum levels of steroid hormones oestrogen and progesterone were estimated. Histopathological picture of both ovary and uterus were assessed. Levels of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidise (GPX) activity, amount of reduced glutathione (GSH) and malondyaldehyde (MDA) in blood, ovary and uterus were measured as biomarkers of oxidative stress. Results : The treated rats showed reduced body weight gain and reduction in the weight of ovary and uterus. Oestrus cycle was disrupted with continuous diestrous in treated animals. Number of corpora lutea, implantation sites and live fetus and the survival of fetus evaluate were reduced significantly in treated groups. The levels of ovarian cholesterol and ascorbic acid increased in treated rats with decrease Δ5 -3β HSD level. There was reduction in serum level of both the ovarian steroid hormones oestrogen and progesterone. The protein levels did not differ between the groups. There was a significant increase in levels of MDA and decrease in levels of all the antioxidant enzymes in treated group. Conclusion : The results revealed there was disruption to reproductive functions with decrease in stereoidogenic activity and associated oxidative stress in female rats treated with combination of mixture of metals (Cd, As and Pb) at low dose for 90 consecutive days.

Assessment of Superoxide Dismutase and Catalase Evolution in Different Stages of an Experimental Endometriosis

2017 ◽  
Vol 68 (6) ◽  
pp. 1381-1383
Author(s):  
Allia Sindilar ◽  
Carmen Lacramioara Zamfir ◽  
Eusebiu Viorel Sindilar ◽  
Alin Constantin Pinzariu ◽  
Eduard Crauciuc ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Superoxide Dismutase ◽  
Antioxidant Enzymes ◽  
Reproductive Function ◽  
Female Rats ◽  
Oxygen Species ◽  
Efficient Treatment ◽  
Endometrial Cells ◽  
Gynecological Disorder ◽  
The Impact

Endometriosis is described as a gynecological disorder characterized by the presence of endometrial tissue outside the uterus; extensively explored because of its increasing incidency, with an indubitable diagnostic only after invasive surgery, with no efficient treatment, it has still many aspects to be elucidated. A growing body of facts sustain oxidative stress as a crucial factor between the numerous incriminated factors implicated in endometriosis ethiopathogeny. Reactive oxygen species(ROS) act to decline reproductive function. Our study intends to determine if an experimental model of endometriosis may be useful to assess the impact of oxidative stress on endometrial cells; we have used a murine model of 18 adult Wistar female rats. A fragment from their left uterine horn was implanted in the abdominal wall. After 4 weeks, a laparatomy was performed, 5 endometrial implants were removed, followed by biochemical tissue assay of superoxide dismutase(SOD) and catalase(CAT). At the end of the experiment, the rats were sacrificed, the implants were removed for histopathological exam and biochemical assay of antioxidant enzymes. The results revealed decreased levels of antioxidant enzymes, pointing on significant oxidative stress involvement.

scholarly journals Reproductive toxicity of triazole fungicides cyproconazole and epoxiconazole when exposed to male and female wistar rats during gametogenesis

2021 ◽  
Vol 54 (1) ◽  
pp. 52-61
Author(s):  
NR Shepelskaya ◽  
YaV Kolyanchuk
Keyword(s):  
Body Weight ◽  
Reproductive Toxicity ◽  
Reproductive Function ◽  
Female Rats ◽  
Male Rats ◽  
Corpora Lutea ◽  
Disruptive Effect ◽  
Male And Female ◽  
Two Samples ◽  
Adverse Effect Level

Aim. Studying the effect of generic pesticides cyproconazole (98 %) and two samples of epoxiconazole (epoxiconazole 1 — 95,75 % and epoxiconazole 2 — 98,7 %) on the reproductive system of male and female Wistar Han rats at the level of the organism when exposed during gametogenesis, identification and characterization of their hazard, as well as assessment of the risk of reproductive toxicity of these compounds. Materials and Methods. The test samples were administered daily (5 days a week) by oral gavage at doses of 0.2 and 2.0 mg/kg for cyproconazole and 0.5 and 2.0 mg/kg for epoxiconazoles during 11 weeks for males, and 10 weeks for females. Also, there were kept intact males and females, intended for crossover mating with experimental animals. After the end of the exposure, functional indicators of the state of the gonads and the ability of animals to reproduce offspring were studied. The duration and the frequency of each stage of the estrous cycle in female rats and the number of motile sperm, the total amount of sperm and the number of abnormal forms of germ cells of the male rats were studied. The reproductive function state in females was evaluated on day 20th of pregnancy. Thereby the number of corpora lutea in the ovaries, number of alive, dead and resorbed foetuses and embryos, the foetus weight, total weight of litters were registered. The studies were carried out in accordance with the recommendations of the Bioethics Commission and the Centre’s standard operating procedures, developed in accordance with the recommendations and requirements of Good Laboratory Practice (GLP). Conclusions. Test substances at a maximum dose of 2.0 mg/kg of body weight have reproductive toxicity and endocrine-disruptive effect, exerting a significant antiandrogenic effect on males and antiestrogenic effect on female rats. No-observed-adverse-effect-level (NOАEL) for gonadal and reproductive toxicity for male and female Wistar Han rats were established. They are 0.2 mg/kg body weight for cyproconazole and 0.5 mg/kg body weight for epoxiconazole. Key Words: azole fungicides, cyproconazole, epoxiconazole, reproductive toxicity, antiandrogenic and antiestrogenic effects, Wistar Han rats.

scholarly journals Microbial preparations as a factor of plant resistance to the stress effects of heavy metals

2020 ◽  
Author(s):  
L.A. Chaikovskaya ◽  
◽  
M.I. Baranskaya ◽  
O.L. Ovsienko ◽  
◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Heavy Metals ◽  
Ascorbic Acid ◽  
Winter Wheat ◽  
Soil Contamination ◽  
Plant Resistance ◽  
Antioxidant Protection ◽  
Stress Effects ◽  
Wheat Leaves ◽  
Antioxidant Protection System

The results of the influence of the complex microbial preparations (CMP) on the formation of the winter wheat antioxidant protection system in case of soil contamination with Pb, Cu, Cr are presented. Soil contamination with HM led to an increase in the content of ascorbic acid, glutathione, and peroxidase in wheat leaves. The use of CMP for pre-sowing inoculation of seeds helps to reduce the content of these indicators in the leaves of plants. Thus, bacterization contributed to a decrease in the content of ascorbic acid in the leaves by 13-35%. There was also a decrease in the content of glutathione in the leaves of plants grown from inoculated seeds. It decreased by 14-32%, 12-25%, and 19-24% on the background of НM soil contamination at the level of 1, 2.5 and 5 MPC, respectively. Our studies have shown a decrease in the content of peroxidase in the leaves of bacterized wheat plants on the background of soil contamination at the level of 1, 2.5 and 5 MPC HM by 7–19%, 14-33%, and 25-49%, respectively. Thus, soil contamination with HM leads to an increase in the content of ascorbic acid, glutathione, and peroxidase in the leaves of young winter wheat plants. The use of CMP for pre- sowing inoculation of seeds helps to reduce the content of these indicators in the phytomass of plants. This indicates an increased plant resistance to oxidative stress caused by HM.

scholarly journals OXIDATIVE STRESS IN RAT LIVER AND KIDNEY DUE TO CHRONIC EXPOSURE TO A MIXTURE OF ARSENIC, CADMIUM, AND LEAD: PROTECTIVE ROLE OF SELENIUM AND ZINC

2017 ◽  
Vol 10 (7) ◽  
pp. 207
Author(s):  
Tapasi Bhattacharjee ◽  
Soma Choudhuri ◽  
Dipayan Choudhuri
Keyword(s):  
Oxidative Stress ◽  
Heavy Metals ◽  
Chronic Exposure ◽  
Female Rats ◽  
Oxidative Enzymes ◽  
Sodium Selenate ◽  
Control Group ◽  
Albino Rats ◽  
Relevant Dose ◽  
Liver And Kidney

Objective: This study assessed the effect of chronic exposure to a mixture of heavy metals arsenic (As), cadmium (Cd), and lead (Pb) at a very low environmentally relevant dose along with the effect of coadministration of metallic antioxidants selenium (Se) and zinc (Zn) on hepatic and renal function and oxidative stress parameters in the liver and kidney of female albino rats.Methods: A total of 24 female albino rats were divided into four groups. Animals of the control group received only distilled water. The treated group received mixture of heavy metals As (38.0 ppm), Cd (9.8 ppm), and Pb (22.0 ppm)/kg b.w./day. The supplemented groups received either sodium selenate (10 ppm) or Zn chloride (20 ppm) along with mixture of heavy metals. The treatment period was 90 consecutive days.Results: There was a significant increase in serum glucose, cholesterol, urea and creatinine and decrease in protein and albumin levels in the rats treated with mixture of heavy metals. The activities of serum enzymes, serum glutamic oxaloacetic transaminase and serum glutamic pyruvic transaminase and acid phosphatase and alkaline phosphatase in the liver and kidney of treated animals were also increased. The activities of different oxidative enzymes catalase, superoxide dismutase, glutathione reductase, glutathione peroxidase, and the levels of glutathione reduced significantly and level of malondialdehyde increased in rats treated with metal mixture. Histopathology of liver and kidney tissues exhibited toxic symptoms in treated animals. All the deleterious effects were reversed by cotreatment with either Se or Zn.Conclusion: Both Se and Zn provided protection against oxidative damage and hepatotoxic and nephrotoxic effects produced due to exposure to a mixture of heavy metals As, Cd, and Pb at a very low environmentally relevant dose in female rats for 3 months.

scholarly journals Histological changes of female reproductive organs subjected to different jumping exercise intensities and honey supplementation in rats

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7646
Author(s):  
Maryam Mosavat ◽  
Mahaneem Mohamed ◽  
Foong Kiew Ooi ◽  
Mitra Mirsanjari ◽  
Anani Aila Mat Zin ◽  
...  
Keyword(s):  
Body Weight ◽  
High Intensity ◽  
Reproductive Organs ◽  
High Intensity Exercise ◽  
Female Rats ◽  
Corpora Lutea ◽  
Histopathological Changes ◽  
Histological Changes ◽  
Jumping Exercise ◽  
Female Reproductive Organs

Background We assessed histopathological changes of ovaries and uterus in female rats subjected to different jumping exercise intensities combined with honey supplementation at one g/kg body weight/day. Methods A total of 72 rats were divided into six groups, 12 rats in each: control (C), 20 and 80 jumps (20E, 80E), honey (H), and 20 and 80 jump with honey (20EH, 80EH). Results The endometrium was significantly thicker in the rats in H, 20EH and 80EH groups compared to C, 20E, and 80E. The myometrium thickness was significantly lower in 80E and significantly higher in 80EH compared to C, respectively. There was significantly higher myometrium thickness in 20EH and 80EH compared to 20E and 80E and H. The number of glands of the uterus in 20E and 80E was significantly lower than C. However, there was a significantly higher number of glands in H, 20EH, and 80EH compared to 20E and 80E. The numbers of uterus vessels were significantly lower in 80E compared to 20E. However, the numbers of vessels were significantly higher in H, 20EH, and 80EH compared to 80E. The number of ovarian haemorregia was significantly lower in 20E, 80E, H, 20EH, and 80EH compared to C. The number of corpora lutea was significantly lower in 80EH, H, 80E, and 20E compared to C. However, the number of corpora lutea was significantly higher in 20EH compared to J20 and H. Conclusion This study suggested that jumping exercises in particularly high-intensity exercise may induce histopathological changes in uterus and ovary in rats, and honey supplementation may ameliorate these effects.

scholarly journals Supplementation with α-tocopherol or a combination of α-tocopheroland ascorbic acid protects the gastrointestinal tract of iron-deficientrats against iron-induced oxidative damage during iron repletion

2000 ◽  
Vol 84 (2) ◽  
pp. 165-173 ◽  
Author(s):  
K. Srigiridhar ◽  
K. Madhavan Nair
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Gastrointestinal Tract ◽  
Oxidative Damage ◽  
Treatment Protocol ◽  
Female Rats ◽  
Protein Carbonyls ◽  
Control Group ◽  
Mucosal Cell ◽  
The Impact

Recently we have shown the susceptibility of Fe-deficient rat intestine to oxidative damage during Fe repletion. The role of dietary antioxidants like ascorbic acid, α-tocopherol and a combination of both in counteracting the oxidative stress was tested in this study. Five groups of thirteen weanling WKY female rats were fed with an Fe-deficient diet for a period of 5 weeks. Another set of thirteen rats received an Fe-sufficient diet and served as the control group (Con). Oral administration of either vehicle (D), 8 mg Fe alone (D+) or in the presence of 24 mg ascorbic acid (D++ C), 40 mg α-tocopherol (D++ E) or a combination of both (D++ C + E) per d for 15 d was carried out in Fe-depleted rats. The impact of this treatment protocol on Fe status, oxidative stress and antioxidant status at the site of Fe absorption was assessed. It was observed that though the indicators of Fe status were normalised on Fe supplementation, the oxidative stress as reflected by the levels of both thiobarbituric-acid reactive substances (TBARS) and protein carbonyls were significantly greater in D+and D++ C compared to D++ E, D++ C + E and Con groups. The mucosal cell DNA damage was seen in D+, D++ C and D++ E groups on electrophoresis. Functional integrity as assessed by the activities of alkaline phosphatase and lys-ala-dipeptidyl aminopeptidase were normalized in all the groups treated with the antioxidant(s). There were significant positive alterations in some of the endogenous antiperoxidative systems and in serum caeruloplasmin activity in D++ E and D++ C + E groups. Paradoxically, serum ascorbate levels were significantly lower in D++ C than in D++ E and D++ C + E groups. This could be due to the protection offered by α-tocopherol in the presence of Fe. It is concluded that supplementation of α-tocopherol alone or in combination with ascorbic acid protects the gastrointestinal tract of Fe-deficient rats against Fe-mediated oxidative damage during Fe repletion. However, ascorbic acid alone does not protect the gastrointestinal tract against Fe-induced oxidative stress.

The Potential role of Eugenol and Ocimum sanctum extract on female rats: a focus on infertility efficacy

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Venkataramanaiah Poli ◽  
Motireddy Srinivasulu Reddy
Keyword(s):  
Estrogenic Activity ◽  
Reproductive Function ◽  
Female Rats ◽  
Ocimum Sanctum ◽  
Control Group ◽  
Albino Rats ◽  
Corpora Lutea ◽  
Healthy Female ◽  
Saline Vehicle

Objectives The aim of the present study was to evaluate the infertility effect of Eug and OS extract administrations in female albino rats. Methods Healthy female albino rats are provided with EUG (99% pure) with a dose of 0.4 ml/ day/ rat and OS Linn. Leaf extract with a dose of 500 mg/kg body weight/ day/ rat orally for 20 days. The control group received saline (vehicle). On day 20 of gestation, maternal and foetal, Antifertility and Antiimplantation, ovarian follicular kinetics and Estrogenic activity parameters. ANOVA Analysis One-way with Dunnett comparison tests used to analyze data. Ocimum Sanctum also gets an antifertility effect.   Results Oral administration of the extract from days 1 to 19 of gestation showed a reduction (p<0.05) in the number of corpora lutea of pregnancy and number of live fetuses. The foetal and placental weights were also significantly (P < 0.05) decreased in Eug and OS extract compared with the control. The results revealed that Antiimplantation activity were 87.17% and 79.48% in Eug and OS extract administration. Antifertility activity was 83.33 % in in Eug and OS extract administration. Conclusion The results of this study concluded the evidence for the antifertility activity of the administration of Eug and OS extract in female rats. Administration can induce the effects of inhibition on reproductive function in female albino rats.

scholarly journals Studies of the Effects of Neonatal Exposure to Genistein on the Developing Female Reproductive System

2006 ◽  
Vol 89 (4) ◽  
pp. 1189-1196 ◽  
Author(s):  
Wendy N Jefferson ◽  
Elizabeth Padilla-Banks ◽  
Retha R Newbold
Keyword(s):  
Ovarian Development ◽  
Ovarian Function ◽  
Reproductive Function ◽  
Corpora Lutea ◽  
Developmental Exposure ◽  
Age Related ◽  
Reproductive Differentiation ◽  
Genistein Treatment ◽  
Estrous Cyclicity ◽  
Implantation Sites

Abstract Studies have shown that developmental exposure to genistein alters murine reproductive differentiation, resulting in abnormal ovarian development (multioocyte follicles) and uterine neoplasia later in life. Further, reproductive function was altered. Prolonged estrous cyclicity was observed following neonatal genistein treatment (0.550 mg/kg) on Days 15 with doseand age-related increase in severity. Fertility, determined at 2, 4, and 6 months, showed decreased numbers of genistein-treated females (0.5 or 5 mg/kg) delivering live pups and reduced numbers of pups. At 6 months, 60% of 0.5 mg/kg and 40% of 5 mg/kg groups delivered live pups compared to 100% of controls. At 2 months, half the mice treated with 25 mg/kg of genistein and none treated with 50 mg/kg delivered live pups, although half of the latter group showed signs of pregnancy with few small implantation sites. Ovarian function was disrupted in the low genistein-dosed mice with increased numbers of corpora lutea (CLs) compared to controls and increased ovulated oocytes following exogenous gonadotropins treatment. In contrast, mice treated with high genistein doses had decreased numbers of CLs; ovulation could be restored with exogenous gonadotropins. Thus, neonatal treatment with genistein at environmentally relevant doses caused adverse consequences on ovarian development and reproductive function.

scholarly journals Evaluation of oxidative stress indices after exposure to malathion and protective effects of ascorbic acid in ovarian tissue of adult female rats

10.19082/6789 ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 6789-6795 ◽  
Author(s):  
Somayyeh Abbasabad Arab ◽  
Mohammad Reza Nikravesh ◽  
Mahdi Jalali ◽  
AliReza Fazel
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Adult Female ◽  
Ovarian Tissue ◽  
Female Rats ◽  
Protective Effects ◽  
Stress Indices

EFFECTS OF ACTIVE AND PASSIVE IMMUNIZATION WITH LH-RH ON GONADOTROPHIN SECRETION AND REPRODUCTIVE FUNCTION IN FEMALE RATS

1979 ◽  
Vol 91 (4) ◽  
pp. 616-628 ◽  
Author(s):  
Masazumi Kawakami ◽  
Takashi Higuchi
Keyword(s):  
Elevated Serum ◽  
Passive Immunization ◽  
Physiological Role ◽  
Reproductive Function ◽  
Active Immunization ◽  
Female Rats ◽  
Ovariectomized Rats ◽  
Corpora Lutea ◽  
Serum Lh ◽  
Lh Rh

ABSTRACT In order to get information about the physiological role played by LH-RH in the regulation of tonic and phasic secretion of gonadotrophins, and about the existence of FSH-RF distinct from LH-RH, we attempted to neutralize endogenous LH-RH by passive and active immunization with LH-RH in female rats. Anti-LH-RH serum prevented pre-ovulatory gonadotrophin surges at prooestrus and ovulation, and it suppressed gonadotrophin increase induced by oestradiol benzoate or progesterone in ovariectomized rats. Elevated serum gonadotrophin concentrations in long-term ovariectomized rats were lowered by anti-LH-RH serum injection. The decrease in FSH levels was lesser than that in LH levels. Serum FSH rose without significant changes in serum LH level for 6 h after ovariectomy on pro-oestrus or dioestrus. The post-ovariectomy rise of FSH was not suppressed by the anti-LH-RH serum which was enough to inhibit serum LH to undetectable levels. Active immunization with LH-RH resulted in decreasing LH levels but failed to alter FSH levels in both serum and pituitary. Seven out of 10 rats immunized with LH-RH became constantly di-oestrous. The weights of anterior pituitary, ovary and uterus of the LH-RH immunized rats were significantly smaller than those of BSA immunized controls. Ovaries of LH-RH immunized rats contained few fresh corpora lutea. These results indicate that LH-RH plays a significant role in the control of both phasic and tonic secretion of LH and FSH. The existence of FSH-RF distinct from LH-RH or mechanism which specially controls the basal FSH secretion is indicated.

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