A simpler way to choose the sex of offspring by separating X and Y sperm: Differential gene activity by the two sex chromosomes allows X-bearing sperm to be slowed down

A simple, reversible chemical treatment can segregate X-bearing sperm from Y-bearing sperm, allowing dramatic alteration of the normal 50/50 male/female offspring ratio, according to a new study by Masayuki Shimada and colleagues at Hiroshima University, published on August 13 in the open-access journal PLOS Biology. The study was performed in mice, but the technique is likely to be widely applicable […]

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IVF kids ‘have slightly higher cancer risk from parents’ infertility’

Children born via IVF have slightly higher cancer risk, study finds – but it’s linked to parents’ fertility issues not the technology Researchers at the University of Minnesota studied 276,000 children conceived by IVF, and 2.2 million conceived naturally, for a decade Cancer rates were 17 percent higher in kids conceived with IVF But the risk was small, the tumors […]

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Levothyroxine treatment in women with thyroid antibodies may not increase live birth rate

Treating women with thyroid antibodies but a normal thyroid function with a medicine called Levothyroxine does not make them more likely to deliver a live baby, new research led by the University of Birmingham suggests. The research, which was led by researchers from the Institute of Metabolism and Systems Research, Birmingham Clinical Trials Unit, the Institute of Applied Health Research, […]

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Mathematicians reveal secret to human sperm’s swimming prowess

Researchers have discovered what gives human sperm the strength to succeed in the race to fertilise the egg. The researchers, from the universities of York and Oxford, discovered that a reinforcing outer-layer which coats the tails of human sperm is what gives them the strength to make the powerful rhythmic strokes needed to break through the cervical mucus barrier. Only […]

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Chemical pollutants in home degrade fertility in men and dogs

Here’s another reason to take environmental degradation seriously. A recent study suggests that environmental contaminants found at home and in one’s diet have the same adverse effects on male fertility in both humans and in domestic dogs. There has been increasing concern over declining human male fertility in recent decades with studies showing a 50% global reduction in sperm quality […]

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Improving IVF success rates

Faster, cheaper and less damaging to DNA, a microchip device that pits sperm racing against one another is being developed by Afrouz Ataei from Florida Atlantic University and may help to improve IVF success rates in the future. Ataei is presenting the fitness stats on the sperm sorted by her device this week at the American Physical Society March Meeting […]

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New robotic sensor technology can diagnose reproductive health problems in real-time

The technology, developed by researchers at Imperial College London and The University of Hong Kong, can be used to measure hormones that affect fertility, sexual development and menstruation more quickly and cheaply than current methods. The work, published in Nature Communications, took place in the Chemistry Department at Imperial College London and the School of Biomedical Sciences at the University […]

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For many women, tracking their fertility can be an emotional whirlwind

Have you ever used a health app to track your personal data, such as diet, exercise, or menstrual cycle? Did seeing the data make you feel excited and empowered? Or stressed and frustrated? With the popularity of self-tracking technologies like apps and wearables, many people are becoming more engaged with their health data. According to a 2012 Pew Research Center […]

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