نتایج جستجو برای: fertility technologies

تعداد نتایج: 251511  

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: :Proceedings of the National Academy of Sciences of the United States of America 2014
Corey J A Bradshaw Barry W Brook

The inexorable demographic momentum of the global human population is rapidly eroding Earth's life-support system. There are consequently more frequent calls to address environmental problems by advocating further reductions in human fertility. To examine how quickly this could lead to a smaller human population, we used scenario-based matrix modeling to project the global population to the yea...

2012
Yimeng Zhang Shari Margolese Mark H. Yudin Janet M. Raboud Christina Diong Trevor A. Hart Heather M. Shapiro Cliff Librach Matt Gysler Mona R. Loutfy

The purpose of this cross-sectional study is to assess the desire, need, perceptions, and knowledge of assisted reproductive technologies (ARTs) for women living with HIV (WLWHIV) and determine correlates of ART knowledge desire. WLWHIV of reproductive age were surveyed using the survey instrument "The HIV Pregnancy Planning Questionnaire" at HIV/AIDS service organizations across Ontario, Canad...

2016
Mingyou Li Ni Hong Hongyan Xu Jianxing Song Yunhan Hong

Primordial germ cell (PGC) specification early in development establishes the germline for reproduction and reproductive technologies. Germline replacement (GR) is a powerful tool for conservation of valuable or endangered animals. GR is achievable by germ cell transplantation into the PGC migration pathway or gonads. Blastula cell transplantation (BCT) can also lead to the chimeric germline co...

2010
Melissa C. Hulvat Jacqueline S. Jeruss

Opinion statement Breast cancer effects nearly 200,000 American women each year, with 9% of these women still in their childbearing years. For this subset of future survivors, the issue of fertility may be a significant quality-of-life concern. Both the causes and treatments for infertility in young breast cancer patients must be thoroughly understood by the multidisciplinary team caring for th...

Journal: : 2023

Aim . To evaluate the effectiveness of assisted reproductive technologies in women with infertility after surgical interventions on pelvic organs. Material and methods : We analyzed data 90 who approached Nasl Medical Center due to for IVF 2017-2020, whom different approaches treatment without organs anamnesis were applied at first stage. Results “A differentiated approach during stage a comple...

2006
Esther Rutto Hugo De Groote Bernard Vanlauwe Fred Kanampiu George Odhiambo Zeyaur Khan

During participatory rural appraisals, farmers at the Lake Victoria basin of Kenya and Uganda identified Striga, stemborer and declining soil fertility as three major constraints to maize production To reduce food insecurity, several innovative integrated technologies to address these constraints have been developed, including push-pull (maize intercropped with Desmodium and surrounded by napie...

2013
Sun Hee Lee Choong Ho Shin

With advances in cancer treatment, more pediatric cancer patients have increased their life expectancy. Because cancer-related therapy causes various physical and psychological problems, many male survivors experience later problems with thyroid and sexual functions, and with growth. As outcomes have improved, more survivors need to maintain their reproductive function to maximize their long-te...

2006

E T r i fi t t i c d s p s s I ACKGROUND emale fertility begins to decline many years prior to the nset of menopause despite continued regular ovulatory cyles. Although there is no strict definition of advanced reroductive age in women, infertility becomes more proounced after the age of 35. A classic report on the effect of emale age on fertility found that the percentage of women ot using con...

2017
Valentin Shabataev Raanan Tal

Azoospermia, the absence of any sperm cells from the ejaculated semen, poses a real challenge to the fertility urologist. While there are options to create happy families for azoospermic couples, such as the use of donor sperm and adoption, most couples still want to have genetically related offspring. Advances in urology, gynecology, and fertility laboratory technologies allow surgical sperm r...

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