New Genetic Variations Discovered in Swimming Behavior of Sperm Cells
Research offers additional insights into the reproductive process. A team of scientists has discovered that the behavior of sperm cells is due, in part, to…
Sperm News
Newly Identified Enzyme Enables Lifelong Sperm Production
According to research conducted by the University of Pennsylvania, the enzyme DOT1L, a stem cell self-renewal factor, is necessary for mice to continue producing sperm…
Losing Weight Can Double Your Sperm Count and Improve Fertility
Obese men can double their sperm count Men all throughout the globe are experiencing declining semen quality, which is commonly referred to as an outright…
A New Technique Can Predict Pregnancy Success and Timing
A new sperm age measurement could predict pregnancy success Pregnancy, often known as gestation, is the period of time when one or more fetuses grow…
Shedding Light on Sperm Development Failure Caused by Testicular Warming
Testicles of most mammals are cooled in the scrotum, and elevated testicular temperatures lead to spermatogenesis failure and male infertility. A team of researchers led…
Increased Genetic Mutations in Children Can Be Traced Back to Mistakes in Father’s Sperm
Scientists have traced the cause of increased numbers of mutations in children to a higher rate of random mutations in sperm cells of the biological…
How Do Genomes Evolve Between Species? The Key Role of 3D Structure in Sperm Cells
A study led by researchers at the Universitat Autònoma de Barcelona (UAB) and the University of Kent uncovers how the genome three-dimensional structure of male…
Frozen Testicular Tissue Can Be Reimplanted After 20 Years and Go On To Make Viable Sperm
Research in mice holds implications for childhood cancer survivors. Male testis tissue that is cryopreserved can be reimplanted after more than two decades and will…
Older Men With High BMI Have More Sperm Cell Irregularities
According to a single-cell analysis of autopsied human testes, abnormalities associated with aging sperm cells may be exacerbated by elevated body mass index (BMI). The…
Male Birth Control Pill: Natural Compound Discovered With “Ideal” Contraceptive Effects
Dr. Wei Yan discovered a natural compound that exhibits almost ideal male contraceptive effects in pre-clinical studies. In a paper published by Nature Communications, The…
New Contraceptive Method: Trapping Sperm in Semen’s Natural Gel
A discovery that blocks the normal transition of semen from a thick gel to a liquid shows promise for development of a new form of…
Reproductive Sciences Experts Discover Gene Crucial to Sperm Cell Production
Reproductive Sciences experts at Cincinnati Children’s discover that the gene Cdc42 is required to support proper alignment and function of Sertoli cells. Scientists at Cincinnati…
Scientists Solve an Evolutionary Curiosity: Why a Human Egg Is 10 Million Times the Volume of a Sperm Cell
Egg and sperm cell size evolved from competition. Limited resources drove gametes to differ vastly in size and number. In most living animals, egg cells…
Japanese Scientists Tried Mailing Freeze-Dried Mouse Sperm on a Postcard – Here’s What They Discovered
Scientists no longer have to worry about their bottles of mouse sperm breaking in transit. Researchers in Japan have developed a way to freeze dry…
Newly Discovered Sperm Movement Could Help Treat Male Infertility
University of Toledo research shows the centriole’s role in sperm evolved from a shock absorber to a transmission system. Scientists at The University of Toledo…
Sperm Evolution Becomes Supercharged Only When They Swim Inside Females
Sperm size varies dramatically among different animal species. But why is sperm size so variable when they share the same job — to fertilize eggs?…
Extinction of the Human Species? Harvard Researchers Say Not to Panic Over Declining Sperm Counts
An alternative explanation of recent findings of declining sperm counts: normal, non-pathological variation. A new study from the Harvard GenderSci Lab in the journal Human Fertility,…
Some Sperms Poison Their Competitors: A Genetic Factor Helps Sperm Cells Outcompete Their Peers
Competition among sperm cells is fierce – they all want to reach the egg cell first to fertilize it. A research team from Berlin now…