نتایج جستجو برای: fertility technologies

تعداد نتایج: 251511  

2017
Melanie McGrice Judi Porter

(1) Background: Medical interventions including assisted reproductive technologies have improved fertility outcomes for many sub-fertile couples. Increasing research interest has investigated the effect of low carbohydrate diets, with or without energy restriction. We aimed to systematically review the published literature to determine the extent to which low carbohydrate diets can affect ferti...

2011

In modern societies, the proportion of women who delay childbearing beyond the age of 35 years has greatly increased in recent decades. They are falsely reassured by popular beliefs that advances in new reproductive technologies can compensate for the age-related decline in fertility. Yet age remains the single most important determinant of male and female fertility, either natural or treated. ...

Journal: :international journal of energy and environmental engineering 2011
andrzej zibik marcin liszka

the present paper deals with the results of the foresight analysis concerning the development of energy technologies in upper silesia. twelve experts representing science, industry and independent authoritieswere involved in these investigations. upper silesia is a specific region in poland, characterized by coal energy technologies. as 9 result of steep and swot analyses several scenarios of e...

2015
Caiyun Liao Maybel Wahab Jean Anderson Jenell S Coleman

INTRODUCTION Increased life expectancy of HIV-positive individuals during recent years has drawn attention to their quality of life, which includes fulfillment of fertility desires. In particular, heterosexual HIV serodiscordant couples constitute a special group for whom the balance between desired pregnancy and the risk of viral transmission should be carefully considered and optimized. Altho...

Journal: :Reproductive biology 2005
Jerzy Strzeżek Paweł Wysocki Władysław Kordan Magdalena Kuklińska Marzena Mogielnicka Daniel Soliwoda Leyland Fraser

Proteomics is critical to identify the properties and functions of proteins involved in the mechanism regulating the male reproductive tract function. This approach is important in male fertility assessment and clinical diagnosis of the physiological state of individual reproductive organs. Proteomics also provides a tool to understand the interactions of seminal plasma proteins with spermatozo...

2015
Fahimeh Ranjbar Mohammad-Mehdi Akhondi Leili Borimnejad Saeed-Reza Ghaffari Zahra Behboodi-Moghadam

The purpose of our study was describing the meaning of pregnancy through Assisted Reproductive Technologies (ARTs). A qualitative design with hermeneutic phenomenology approach was selected to carry out the research. Semistructured in-depth interviews were conducted with 12 women who experienced assisted pregnancy. Three themes emerged from women's experience including finding peace in life, pa...

2017
Daniela Bebbere Luisa Bogliolo Federica Ariu Irma Rosati Sergio Ledda

The mammalian oocyte and embryo display considerable plasticity. Even in sub-optimal conditions, as in vitro environment may be certainly considered, the oocyte is able to mature, face fertilization and develop first into an embryo and finally to a live offspring. Such ability has encouraged, over the decades, the development of numerous in vitro assisted reproductive technologies (ART) in seve...

Journal: :Animal reproduction science 2016
J Roca I Parrilla M A Gil C Cuello E A Martinez H Rodriguez-Martinez

Non-viable sperm ("dead sperm") are present in variable numbers in mammalian ejaculates and their number increase substantially when semen is stored, particularly cryopreserved. This review comparatively highlights, with experimental data in porcine, the role-played by non-viable sperm in the outcome of semen used in assisted reproductive technologies. As well, the review discusses our current ...

Journal: :journal of reproduction and infertility 0

fertility in the male is dependent on the proper production of sperm cells. this process, called spermatogenesis is very complex and involves the synchronization of numerous factors. the presence of pro–inflammatory cytokines, tumor necrosis factor-alpha (tnf–α), interleukin–1 alpha (il–1 α) and interleukin 1 beta (il–1 β) cytokines in the male reproductive tract (testis, epididymis and sperm) ...

2009

International migrants are subjected to numerous influences that may alter their fertility. The act of migration is disruptive to reproduction while exposure to different societal norms in addition to the transfer of remittance income can generate ideas and opportunities for household family planning. Contemporary data for three Central American countries (Costa Rica, Guatemala, and Nicaragua) ...

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