نتایج جستجو برای: edcs

تعداد نتایج: 732  

2014
Hueiwang Anna Jeng

Endocrine disrupting chemicals (EDCs) can interfere with normal hormonal balance and may exert adverse consequences on humans. The male reproductive system may be susceptible to the effects of such environmental toxicants. This review discusses the recent progress in scientific data mainly from epidemiology studies on the associations between EDCs and male reproductive health and our understand...

Journal: :Pharmacological reports : PR 2013
Małgorzata Kajta Anna K Wójtowicz

Even though high doses of organic pollutants are toxic, relatively low concentrations have been reported to cause long-term alterations in functioning of individual organisms, populations and even next generations. Among these pollutants are dioxins, polychlorinated biphenyls, pesticides, brominated flame retardants, plasticizers (bisphenol A, nonylphenol, and phthalates) as well as personal ca...

ژورنال: :مجله غدد درون ریز و متابولیسم ایران 0
رحمت اله پرندین rahmatollah parandin department of biology, payame noor university, po box 19395-3697, tehran, iranبخش فیزیولوژی جانوری، گروه زیست شناسی، دانشگاه پیام نور، صندوق پستی 3697-19395 تهران، ایران مرتضی بهنام رسولی morteza behnam rassouli department of biology, faculty of sciences, ferdowsi university of mashhad, mashhad, iranبخش فیزیولوژی جانوری، گروه زیست شناسی، دانشکده علوم، دانشگاه فردوسی مشهد، مشهد، ایران

مقدمه: مسیر هیپوتالاموس-هیپوفیز-گناد (hpg) عملکرد تولیدمثلی را کنترل می کند. هیپوتالاموس، هورمون آزادکننده گنادوتروپین ((gnrh را آزاد می کند که بر هیپوفیز پیشین به منظور تحریک ترشح گنادوتروپ ها تاثیر می گذارد. هورمون های گنادوتروپیک نیز بر غدد جنسی با تحریک بلوغ جنسی، گامت زایی و تولید هورمون های جنسی اثر می گذارند. نورون های gnrh اجزای کلیدی مسیر hpg هستند، هر چند که برخی نوروترانسمیترها و نور...

2012
Frauke Hoffmann Werner Kloas

Various synthetic chemicals released to the environment can interfere with the endocrine system of vertebrates. Many of these endocrine disrupting compounds (EDCs) exhibit estrogenic activity and can interfere with sexual development and reproductive physiology. More recently, also chemicals with different modes of action (MOAs), such as antiestrogenic, androgenic and antiandrogenic EDCs, have ...

Journal: :Endocrinology 2007
Jizhong Cheng Ruwen Cui Chu-Huang Chen Jie Du

Dyslipidemia increases the risks for atherosclerosis in part by impairing endothelial integrity; endothelial progenitor cells (EPCs) play a pivotal role in reendothelialization. In this study, we investigated the mechanism whereby oxidized low-density lipoprotein (oxLDL) affects the function of differentiated EPCs (EDCs). In EDCs expanded in vitro from EPCs isolated from human cord blood, we me...

2011
David M. Kristensen Maria L. Skalkam Karine Audouze Laurianne Lesné Christele Desdoits-Lethimonier Hanne Frederiksen Søren Brunak Niels E. Skakkebæk Bernard Jégou Jacob B. Hansen Steffen Junker Henrik Leffers

BACKGROUND Prostaglandins (PGs) play key roles in development and maintenance of homeostasis of the adult body. Despite these important roles, it remains unclear whether the PG pathway is a target for endocrine disruption. However, several known endocrine-disrupting compounds (EDCs) share a high degree of structural similarity with mild analgesics. OBJECTIVES AND METHODS Using cell-based tran...

Journal: :Chemosphere 2007
Shai Markman Irina A Guschina Sara Barnsley Katherine L Buchanan David Pascoe Carsten T Müller

Endocrine disrupting chemicals (EDCs) can alter endocrine function in exposed animals. Such critical effects, combined with the ubiquity of EDCs in sewage effluent and potentially in tapwater, have led to concerns that they could be major physiological disruptors for wildlife and more controversially for humans. Although sewage effluent is known to be a rich source of EDCs, there is as yet no e...

2016
Ling Li François Bonneton Marie Tohme Laure Bernard Xiao Yong Chen Vincent Laudet Jonathan H Freedman

The effects of endocrine disrupting chemicals (EDCs) on reproduction are well known, whereas their developmental effects are much less characterized. However, exposure to endocrine disruptors during organogenesis may lead to deleterious and permanent problems later in life. Zebrafish (Danio rerio) transgenic lines expressing the green fluorescent protein (GFP) in specific organs and tissues are...

2017
Robert N. Helsley Changcheng Zhou

Despite the major advances in developing diagnostic techniques and effective treatments, atherosclerotic cardiovascular disease (CVD) is still the leading cause of mortality and morbidity worldwide. While considerable progress has been achieved to identify gene variations and environmental factors that contribute to CVD, much less is known about the role of "gene-environment interactions" in pr...

2016
Marjorie E. Bateman Amy L. Strong John A. McLachlan Matthew E. Burow Bruce A. Bunnell

Endocrine-disrupting chemicals (EDCs) are prevalent in the environment, and epidemiologic studies have suggested that human exposure is linked to chronic diseases, such as obesity and diabetes. In vitro experiments have further demonstrated that EDCs promote changes in mesenchymal stem cells (MSCs), leading to increases in adipogenic differentiation, decreases in osteogenic differentiation, act...

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