نتایج جستجو برای: fertility regulation

تعداد نتایج: 598402  

2014
Kate H. Choi

BACKGROUND Mexican-American fertility is poorly understood because data limitations prevent researchers from accurately estimating the fertility levels of members of this group and from determining how their fertility changes within and across generations. OBJECTIVE Using binational data and an innovative methodological addressing key methodological limitations, I (1) estimate the fertility of ...

Journal: :American Journal of Public Health and the Nations Health 1969

Journal: :Journal of cell science 2005
Mauro Maccarrone Barbara Barboni Andrea Paradisi Nicola Bernabò Valeria Gasperi Maria Gabriella Pistilli Filomena Fezza Pia Lucidi Mauro Mattioli

Anandamide (AEA) is the endogenous ligand of cannabinoid (CB) receptors, and as such it plays several central and peripheral activities. Regulation of female fertility by AEA has attracted growing interest, yet a role for this endocannabinoid in controlling sperm function and male fertility in mammals has been scarcely investigated. In this study we report unprecedented evidence that boar sperm...

Journal: :The Journal of endocrinology 2006
A Glover S J Assinder

Phytoestrogens are plant-derived compounds with oestrogenic activity. They are common in both human and animal diets, particularly through soy-based foods. This study assessed whether exposure of adult male rats to a high phytoestrogen diet for 3-25 days affected their fertility, and assessed possible mechanisms through which phytoestrogens may disrupt fertility. Adult males, fed a high phytoes...

2017
Richard Laven

These effects occur in cows with mild and moderate mastitis as well as those with severe mastitis; in cows with Gram negative pathogens (e.g. E. coli) and Gram positive ones (e.g. Staph. aureus); in cows which get mastitis before breeding and in cows which get mastitis afterwards. In fact for the last comparison, some studies have shown that cows which get mastitis after they have been bred for...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Shannon D Whirledge Robert H Oakley Page H Myers John P Lydon Francesco DeMayo John A Cidlowski

In addition to the well-characterized role of the sex steroid receptors in fertility and reproduction, organs of the female reproductive tract are also regulated by the hypothalamic-pituitary-adrenal axis. These endocrine organs are sensitive to stress-mediated actions of glucocorticoids, and the mouse uterus contains high levels of the glucocorticoid receptor (GR). Although the presence of GR ...

2013
JIM HAWKINS Eric Goldman Larry Garvin Lisa Ikemoto Jody Lyneé Madeira

Scholarship on assisted reproductive technologies (ART) has emphasized the commercial nature of the interaction between fertility patients and their physicians, but little attention has been paid to precisely how clinics persuade patients to choose their clinics over their competitors’. This Article offers evidence about how clinics sell ART based on clinics’ advertising on their websites. To a...

Journal: :iranian journal of veterinary medicine 2016
zahra tootian simin fazelipour nader goodarzi goodarzi hossien ali arab

background: phenol is an estrogenic and toxic compound and people are widely exposed to it, in different ways.  objectives: the aim of this study was to determine  the  negative effects of phenol on the fertility of male mice, by investigating sperm parameters including viability, motility, fertility rates and daily sperm production (dsp). methods: a total of 106 adult nih mice were divided int...

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