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. The study was performed in mice, but the technique is likely to be widely applicable to other mammals as well.... SCIENCE DAILY · 4 months
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Protein defect leaves sperm chasing their tails  SCIENCE DAILY · 4 days
Researchers have characterized a protein, called VSP, that keeps sperm swimming in straight lines. Deletion of the protein caused sperm to swim in circles, significantly reducing fertilization rates. VSP also controlled the influx of... more
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How primordial germ cells commence sperm and egg production in the embryonic gonad  PHYS.ORG · 2 weeks
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HIV positive sperm bank launched in New Zealand  NEWS MEDICAL · 1 week
In pursuit of greater acceptance for HIV positive people, an organization in New Zealand aspires to begin an HIV positive sperm bank called Sperm Positive. It will start by accepting sperms from... more
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Why some sperm swim in circles – it’s a protein defect  NEWS MEDICAL · 3 days
A new study published in the journal PNAS shows that some sperm cannot swim straight because they lack a protein called VSP. This motility defect seriously... more
Protein defect leaves sperm chasing their tails  PHYS.ORG · 4 days
A team led by researchers from Osaka University identify a protein required for electrical signal sensing, which, when defective, causes sperm to swim in circles. more
Biologists examine sperm quality on the basis of their metabolism  SCIENCE DAILY · 4 days
Every tenth couple worldwide is affected by infertility. The reasons for this are manifold, but mostly well researched. Nevertheless, about fifteen percent of cases remain unexplained. A team... more
Biologists examine sperm quality on the basis of their metabolism  PHYS.ORG · 1 week
Every tenth couple worldwide is affected by infertility. The reasons for this are manifold, but mostly well researched. Nevertheless, about fifteen percent of cases remain unexplained. A team... more
Placenta changes in older mothers linked to greater odds of heart problems in male offspring  NEWS MEDICAL · 1 week
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Choose hope or climate surrender, says UN chief  PHYS.ORG · 4 days
Confronted with a climate crisis threatening civilisation itself, humanity must choose between hope and surrender, UN chief Antonio Guterres told the opening plenary of a UN climate conference Monday. more
Scientists should have sex and gender on the brain  PHYS.ORG · 1 month
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Why women select college majors with lower earnings potential  PHYS.ORG · 2 weeks
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Why women select college majors with lower earnings potential  SCIENCE DAILY · 2 weeks
Even when both male and female college students say they want to pursue a major with the best earnings prospects, the majors men choose are higher paying than the majors... more
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Record-size sex chromosome found in two bird species  SCIENCE DAILY · 2 days
Researchers have discovered the largest known avian sex chromosome. The giant chromosome was created when four chromosomes fused together into one, and has been found in two species of lark. more
Parents using marijuana could raise risk of addictions among offspring  NEWS MEDICAL · 2 weeks
Researchers from Harvard Medical School, McLean Hospital at Belmont, MA have found that parents using marijuana could be raising the risk of their children picking up addictions such... more
Record-size sex chromosome found in two bird species  PHYS.ORG · 2 days
Researchers in Sweden and the UK have discovered the largest known avian sex chromosome. The giant chromosome was created when four chromosomes fused together into one, and has been found in two... more
Study finds major sex differences when considering link between psoriasis and metabolic disorders  NEWS MEDICAL · 2 days
An analysis published in the Journal of the European Academy of Dermatology and Venereology revealed considerable sex differences when considering links between... more
Changes in placenta could mean males born to older mothers more prone to heart problems  NEWS MEDICAL · 1 week
A new study in rats shows that older mother rats develop poorer placentas which are in turn related... more
'Messy' production of perovskite material increases solar cell efficiency  nanowerk · 3 weeks
Discovery means simpler and cheaper manufacturing methods are actually beneficial for the material?s use in next-generation solar cells or LED lighting. more
Medical News Today: Prostate cancer: Home urine test could 'revolutionize diagnosis'  MNT · 1 day
A recent study has investigated a simpler way of testing urine for prostate cancer. The new test would avoid the need for digital rectal examination. more
Topological charge transport by mobile dielectric-ferroelectric domain walls  Science Magazine · 3 weeks
The concept of topology has been widely applied in condensed matter physics, leading to the identification of peculiar electronic states on three-dimensional (3D) surfaces or 2D lines separating topologically distinctive regions. In... more
Choose your 2019 Breakthrough of the Year!  Science Magazine · 2 weeks
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Humidifiers and vaporizers are two options for adding moisture to the air. This article provides guidance about which one to choose for different uses... more
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