Effects and mechanisms of waterborne copper exposure influencing ovary development and related hormones secretion in yellow catfish Pelteobagrus fulvidraco

Zhang, Li-Han; Luo, Zhi; Song, Yong; Shi, Xi; Pan, Ya–Xiong; Fan, Yao-Fang; Xu, Yi-Huan

doi:10.1016/j.aquatox.2016.07.014

Cited by 26 publications

(11 citation statements)

References 80 publications

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“…Meanwhile, Sun et al [22] demonstrated that elevated Cu contents in the follicular fluid could affect follicle development in PCOS patients, and the mechanism may be related to Cu-induced abnormalities in steroidogenesis. Interestingly, Zhang et al [40] indicated that Cu was beneficial at low doses and relatively short-term exposures, whereas high-dose and long-term Cu exposures had toxic effects on the secretion of sex hormones, which depicted a complicated biological role of Cu with two sides.…”

Section: Discussionmentioning

confidence: 99%

Serum Copper Level and Polycystic Ovarian Syndrome: A Meta-Analysis

Jiang

Zhang

Han

et al. 2021

Gynecol Obstet Invest

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Introduction: The association of serum copper with polycystic ovarian syndrome (PCOS) has been studied for years, but no definite conclusion is drawn. Therefore, we conducted a meta-analysis to investigate serum copper concentrations in PCOS subjects compared with healthy controls. Methods: Electronic search was performed in PubMed, Google Scholar, and Scopus up to June 30, 2020, without any restriction. Standardized mean differences (SMDs) with corresponding 95% CIs in serum copper levels were employed with random-effects model. I2 was applied to evaluate heterogeneity among studies. Results: Nine studies, measuring plasma copper levels in 1,168 PCOS patients and 1,106 controls, were included. Pooled effect size suggested serum copper level was significantly higher in women with PCOS (SMD = 0.51 μg/mL, 95% CI = [0.30, 0.72], p < 0.0001). The overall heterogeneity was not connected with subgroups of the country, but derived from the opposite result of 1 study. Conclusion: Our research generally indicated circulating copper level in PCOS sufferers was significantly higher than normal controls. Large-scale studies are still needed to elucidate the clear relation between copper status and etiology of PCOS.

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Section: Discussionmentioning

confidence: 99%

Serum Copper Level and Polycystic Ovarian Syndrome: A Meta-Analysis

Jiang

Zhang

Han

et al. 2021

Gynecol Obstet Invest

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“…It is well known that cytochrome P450 side‐chain cleavage ( CYP11a1 ), cytochrome P450 17a‐hydroxylase/C17‐20lyase ( CYP17a ), P450 aromatase ( CYP19a ) and 3β‐hydroxysteroid dehydrogenase/isomerase ( 3β‐HSD ) are vital steroidogenic enzymes involved in the biosynthesis of oestrogens, and steroidogenic factor 1 ( SF‐1 ) is a vital cis‐element that regulates the transcription levels of steroidogenic enzymes in ovaries (Nagahama et al, 1995; Zhang et al, 2016). In this study, the mRNA levels of aromatase were significantly upregulated by dietary ARA‐H.…”

Section: Discussionmentioning

confidence: 99%

“…The serum hormone contents of testosterone (T), estradiol (E2), follicle‐stimulating hormone (FSH) and luteinizing hormone (LH) were tested using 125 I radioimmunoassay kits (Beijing North Institute of Biological Technology, Beijing, China) according to the method of Zhang et al (2016). Serum 11‐keto‐testosterone (11–KT) levels were analysed using an ELISA kit (Fanke Chemical Company, Shanghai, China) following the manufacturer's instructions.…”

Section: Methodsmentioning

confidence: 99%

Effects of dietary arachidonic acid on reproduction performance, tissue fatty acid profile and gonadal steroidogenesis in female yellow catfish Pelteobagrus fulvidraco

et al. 2020

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An 8‐week feeding experiment was performed to evaluate the effects of dietary arachidonic acid (ARA) on the reproductive performance, tissue fatty acid profile and sex hormone secretion in female Pelteobagrus fulvidraco during the breeding season. Three diets with different ARA levels (0.64%, 4.67% and 10.07% of total fatty acids) were formulated, a control diet (C) and two diets with low ARA (ARA‐L) or high ARA (ARA‐H). The results showed that the highest gonadosomatic index (GSI) and condition factor (CF) were observed in the ARA‐H group. The diets with supplementation of ARA resulted in a significantly higher fertilization rate, more normal larvae and greater survival rate of 7 days posthatching (7DPH) larvae. The ARA contents in liver and 3DPH larvae were improved with increasing dietary ARA concentrations. The lowest EPA/ARA ratios were observed in liver and eggs of fish fed with the ARA‐L diet. Significantly reduced serum estradiol (E2), 11‐keto‐testosterone (11‐KT) and testosterone (T) levels were found in the ARA‐L group females compared with the other treatments. The combined results indicated that a higher dietary ARA level and ARA/EPA ratio mainly influence spawning performance and egg quality of yellow catfish and that ARA regulates sex steroid hormone synthesis in broodstock.

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“…Cu-ions in ppb-amounts, besides electrostatically interacting with the bacterial envelope, lead to the partial unpacking/damage of the LPS of the outer E. coli bacterial cell wall, later penetrating the bacterial cell-porins with diameters of 1.1-1.3 nm [109]. Cu-ions will also diffuse through skin pores of~100 nm [6,12,[27][28][29][30][31]. To preclude the viral and diverse types of nosocomial infections caused by antibiotic resistant bacteria, Borkow and Gabbay have reported studies on Cu-loaded textiles [110][111][112][113].…”

Section: Cu-loaded Sputtered Surfaces Active In the Dark And Under LImentioning

confidence: 99%

Recent Developments in Accelerated Antibacterial Inactivation on 2D Cu-Titania Surfaces under Indoor Visible Light

2017

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This review focuses on Cu/TiO 2 sequentially sputtered and Cu-TiO 2 co-sputtered catalytic/photocatalytic surfaces that lead to bacterial inactivation, discussing their stability, synthesis, adhesion, and antibacterial kinetics. The intervention of TiO 2 , Cu, and the synergic effect of Cu and TiO 2 on films prepared by a colloidal sol-gel method leading to bacterial inactivation is reviewed. Processes in aerobic and anaerobic media leading to bacterial loss of viability in multidrug resistant (MDR) pathogens, Gram-negative, and Gram-positive bacteria are described. Insight is provided for the interfacial charge transfer mechanism under solar irradiation occurring between TiO 2 and Cu. Surface properties of 2D TiO 2 /Cu and TiO 2 -Cu films are correlated with the bacterial inactivation kinetics in dark and under light conditions. The intervention of these antibacterial sputtered surfaces in health-care facilities, leading to Methicillin-resistant Staphylococcus Aureus (MRSA)-isolates inactivation, is described in dark and under actinic light conditions. The synergic intervention of the Cu and TiO 2 films leading to bacterial inactivation prepared by direct current magnetron sputtering (DCMS), pulsed direct current magnetron sputtering (DCMSP), and high power impulse magnetron sputtering (HIPIMS) is reported in a detailed manner.

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Effects and mechanisms of waterborne copper exposure influencing ovary development and related hormones secretion in yellow catfish Pelteobagrus fulvidraco

Cited by 26 publications

References 80 publications

Serum Copper Level and Polycystic Ovarian Syndrome: A Meta-Analysis

Serum Copper Level and Polycystic Ovarian Syndrome: A Meta-Analysis

Effects of dietary arachidonic acid on reproduction performance, tissue fatty acid profile and gonadal steroidogenesis in female yellow catfish Pelteobagrus fulvidraco

Recent Developments in Accelerated Antibacterial Inactivation on 2D Cu-Titania Surfaces under Indoor Visible Light

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