scholarly journals Alterations of Kiss 1 receptor, GnRH receptor and nuclear receptors of the hypothalamo-pituitary-ovarian axis following low dose bisphenol-A exposure in Wistar rats

2021 ◽  
Author(s):  
Eniola Risikat Kadir
Chemosphere ◽  
2016 ◽  
Vol 164 ◽  
pp. 339-346 ◽  
Author(s):  
M.H. Lejonklou ◽  
S. Christiansen ◽  
J. Örberg ◽  
L. Shen ◽  
S. Larsson ◽  
...  

2020 ◽  
Vol 39 (10) ◽  
pp. 1355-1363 ◽  
Author(s):  
F Basit ◽  
T Akhtar ◽  
N Hameed ◽  
MH Abbasi ◽  
N Sheikh

Bisphenol A (BPA) is one of the widely used chemical as a plasticizer and regarded as endocrine disruptor because of its ability to derail body metabolic functions and adverse effect on the vital organs. The present work outlined the subchronic effect of low-dose BPA (10 mg/kg) on histology of spleen, level of hepatic trace metals, and hepatic protein profile of Wistar rats. To conduct the research work, animals were grouped into two categories ( n = 5). Group 1 was labelled as the control group and group 2 was taken as an experimental group. Experimental group was exposed to low-dose BPA for 12 weeks. Histopathology of spleen highlighted dilation in splenic sinuses, follicle activation, followed by depopulation in the area of white pulp and red pulp in the experimental group. Iron staining revealed significant hemosiderosis in the experimental group when compared with the control group. Statistically significant decrease was noted in zinc and copper concentrations, while nonsignificant change was observed for magnesium concentration through atomic absorption spectroscopy. Sodium dodecyl sulfate–polyacrylamide gel electrophoresis was run for hepatic protein profiling, and as compared to control, elevated levels of different proteins were observed in the experimental group. It can be concluded from the above results that even low dose of BPA causes changes in the major organs of the body. Hence, it is suggested that BPA alternative should be used, so that public health status can be secured.


Author(s):  
Tosan Peter Omayone ◽  
Samuel Babafemi Olaleye

Abstract Objectives Vanadium has been reported to possess relevant therapeutic properties such as anti-diabetic and anti-tumoral. This study aimed at determining the effects of vanadium on experimentally induced colitis in rats. Methods Forty-five male Wistar rats (103 ± 3.90 g, n=15) were used for this study and were divided into three groups. Group 1 (Untreated control) had nothing added to their drinking, while groups 2 and 3 received sodium metavanadate at a dose of 50 and 200 mg/L respectively in their drinking water for 10 weeks. Colitis was thereafter induced by intra colonic administration of 1.50 mL of 6% acetic acid. Animals were sacrificed on day 0 (pre-induction), three- and seven-days post induction. Blood samples were collected for haematological variables and the distal 8 cm of the colon was collected for macroscopic, histological and biochemical (malondialdehyde-MDA, superoxide dismutase-SOD, catalase-CAT, glutathione peroxidase- GPx and nitrite concentration- NO) assessment. Results Low dose vanadium proved beneficial in ameliorating acetic acid-induced colitis by improving both histopathological and haematological changes. Gross observation showed a faster healing rate in vanadium treated groups (50 and 200 mg/L) compared with untreated control at day 3 (40 and 26.20 vs. 2.50%) and day 7 (80 and 66.70 vs. 42%) respectively. Vanadium also appears to exert its beneficial effects on acetic acid-induced colitis via up regulation of antioxidant enzymes (SOD, CAT, GPx) and NO while decreasing the over production of MDA. Conclusions Vanadium at small concentration functions as an essential trace element and may be able to promote healing process during ulcerative colitis.


2012 ◽  
Vol 211 ◽  
pp. S159
Author(s):  
Sofiane Boudalia ◽  
Raymond Berges ◽  
Franck Menetrier ◽  
Cécile Helies ◽  
Marie-Chantal Canivenc-Lavier

2007 ◽  
Vol 115 (1) ◽  
pp. 80-86 ◽  
Author(s):  
Milena Durando ◽  
Laura Kass ◽  
Julio Piva ◽  
Carlos Sonnenschein ◽  
Ana M. Soto ◽  
...  

2002 ◽  
Vol 16 (2) ◽  
pp. 117-122 ◽  
Author(s):  
Shizuka Honma ◽  
Atsuko Suzuki ◽  
David L. Buchanan ◽  
Yoshinao Katsu ◽  
Hajime Watanabe ◽  
...  

2011 ◽  
Vol 71 ◽  
pp. e280-e281
Author(s):  
Yuki Tsuneyoshi ◽  
Akira Masuda ◽  
Kimiya Narikiyo ◽  
Nami Someya ◽  
Shuji Aou

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