scholarly journals High-fat diet aggravates glucose homeostasis disorder caused by chronic exposure to bisphenol A

2014 ◽  
Vol 221 (1) ◽  
pp. 167-179 ◽  
Author(s):  
Shibin Ding ◽  
Ying Fan ◽  
Nana Zhao ◽  
Huiqin Yang ◽  
Xiaolei Ye ◽  
...  

Epidemiological findings on the association between bisphenol A (BPA, 2,2-bis-(4-hydroxyphenyl)propane) exposure and type 2 diabetes mellitus (T2DM) are paradoxical. In animal studies, BPA has been shown to disrupt pancreatic function and blood glucose homeostasis even at a reference ‘safe’ level during perinatal period. In this study, we explored the effects of long-term paternal exposure to a ‘safe’ level of BPA on parents themselves and their offspring. Adult male genitor rats fed with either standard chow diet (STD) or high-fat diet (HFD) were treated respectively with either vehicle or BPA (50 μg/kg per day) for 35 weeks. The male rats treated with vehicle or BPA for 21 weeks were then used as sires, and the adult female rats were fed with STD during the gestation and lactation. Offspring rats were weaned on postnatal day 21 and fed with STD in later life. Metabolic parameters were recorded on the adult male rats and their adult offspring. BPA exposure disrupted glucose homeostasis and pancreatic function, and HFD aggravated these adverse effects. However, BPA exposure did not alter body weight, body fat percentage, or serum lipid. In addition, the paternal BPA exposure did not cause adverse reproductive consequence or metabolic disorder in the adult offspring. Our findings indicate that chronic exposure to a predicted ‘safe’ dose of BPA contributes to glucose metabolic disorders, and that HFD aggravates these adverse effects in paternal rats.

PLoS ONE ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. e100214 ◽  
Author(s):  
Marta García-Arevalo ◽  
Paloma Alonso-Magdalena ◽  
Junia Rebelo Dos Santos ◽  
Ivan Quesada ◽  
Everardo M. Carneiro ◽  
...  

2011 ◽  
Vol 119 (8) ◽  
pp. 1104-1109 ◽  
Author(s):  
David S. Paul ◽  
Felecia S. Walton ◽  
R. Jesse Saunders ◽  
Miroslav Stýblo

2017 ◽  
Vol 55 (4) ◽  
pp. 2740-2753 ◽  
Author(s):  
Danusa Mar Arcego ◽  
Ana Paula Toniazzo ◽  
Rachel Krolow ◽  
Carine Lampert ◽  
Carolina Berlitz ◽  
...  

2020 ◽  
Vol 54 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Samuel Gbadebo Olukole ◽  
Eunice Olufunke Ola-Davies ◽  
Damilare Olaniyi Lanipekun ◽  
Bankole Olusiji Oke

AbstractObjectives. Bisphenol A (BPA) has been reported that among other male reproductive dys-functions, it can cause marked estrogenic effects including alteration in serum hormones as well as testicular lesions in exposed animals. This work sought to study the role of gallic acid (GA), a known antioxidant, on the BPA-induced testicular oxidative stress in adult male Wistar rats using serum hormone analysis, histopathology, and biochemical assays.Methods. Adult male rats were divided into four groups (n=10) including control (0.2 ml of corn oil), GA (20 mg/kg/day), BPA (10 mg/kg/day), BPA+GA (BPA, 10 mg/kg/day + GA, 20 mg/kg/day). All medications were given by oral gavage for 45 consecutive days. The body and testicular weights were measured. Blood and organ samples were collected for the serum hormonal assay: testosterone (T), luteinizing hormone (LH), follicle stimulating hormone (FSH) and prolactin (PRL), and tissue biochemistry analysis: superoxide dismutase (SOD), reduced glutathione (GSH), glutathione-S-transferase (GST), malondialdehyde (MDA), hydrogen peroxide (H2O2), respectively.Results. The BPA-treated rats showed significant reduction in the gonadosomatic index. BPA also caused significant decrease in the levels of the serum testosterone and prolactin. Furthermore, BPA induced testicular oxidative stress by decreasing the activities of antioxidant enzymes and increasing reactive oxygen species. However, co-treatment with GA protected against these alterations.Conclusion. Findings from the present study confirmed the previously reported data and show that the ability of GA, as a potent antioxidant, may protect against BPA-induced alterations in the male reproductive function. Hence, GA protects against testicular oxidative stress in adult male Wistar rats following chronic exposure to BPA.


Sign in / Sign up

Export Citation Format

Share Document