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Current Sperm News and Events, Sperm News Articles.
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The genome of jojoba: The only plant to store wax in its seeds
Interest on Jojoba crop was, and still is, jojoba oil, which is not a glyceride fat, but a liquid wax with unique chemical configuration and features. (2020-05-20)
How do plants forget?
The study now published in Nature Cell Biology reveals more information on the capacity of plants, identified as 'epigenetic memory,' which allows recording important information to, for example, remember prolonged cold in the winter to ensure they flower at the right time during the spring. (2020-05-15)
How plants forget
New work published in Nature Cell Biology from an international team led by Dr. (2020-05-13)
Accurate 3D imaging of sperm cells moving at top speed could improve IVF treatments
Tel Aviv University (TAU) researchers have developed a safe and accurate 3D imaging method to identify sperm cells moving at a high speed. (2020-05-07)
How small chromosomes compete with big ones for a cell's attention
Scientists at the Sloan Kettering Institute have solved the puzzle of how small chromosomes ensure that they aren't skipped over during meiosis, the process that makes sperm and egg. (2020-05-06)
Offspring may inherit legacy of their father's Toxoplasma infection
Australian researchers have revealed for the first time that males infected with the Toxoplasma parasite can impact their offspring's brain health and behaviour. (2020-04-28)
Honey bees could help monitor fertility loss in insects due to climate change
New research from the University of British Columbia and North Carolina State University could help scientists track how climate change is impacting the birds and the bees... of honey bees. (2020-04-27)
Evidence suggests COVID-19 isn't sexually transmitted
COVID-19 is unlikely to be spread through semen, according to University of Utah Health scientists who participated in an international study of Chinese men who recently had the disease. (2020-04-22)
Age matters: Paternal age and the risk of neurodevelopmental disorders in children
It is no secret that genetic factors play a role in determining whether children have neurodevelopmental disorders. (2020-04-20)
Novel sperm membrane protein FIMP facilitates mammalian fertilization
Researchers from Osaka University have identified a new sperm membrane protein that facilitates the complex sperm-oocyte fusion that is fundamental to sexual reproduction, naming it Fertilization Influencing Membrane Protein (FIMP). (2020-04-16)
Preservation of testicular cells to save endangered feline species
A research team at the German Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) developed a method to isolate and cryopreserve testicular cells. (2020-03-31)
A critical enzyme for sperm formation could be a target for treating male infertility
Researchers led by Jeremy Wang of the University of Pennsylvania School of Veterinary Medicine have identified an enzyme essential for the process of male meiosis, the type of cell division that produces sperm. (2020-03-25)
Anxious about COVID-19? Stress can have lasting impacts on sperm and future offspring
Prolonged fear and anxiety brought on by major stressors, like the coronavirus pandemic, can not only take a toll on a person's mental health, but may also have a lasting impact on a man's sperm composition that could affect his future offspring. (2020-03-23)
Parental diet affects sperm and health of future offspring
When parents eat low-protein or high-fat diets it can lead to metabolic disorders in their adult offspring. (2020-03-19)
New details revealed on how plants maintain optimal sperm-egg ratio
Molecular biologist Alice Cheung and colleagues at UMass Amherst used powerful new molecular biochemistry, microscopy and genetic techniques to solve, in unprecedented detail, the mechanisms of how flowering plants avoid polyspermy. (2020-03-18)
Love rivals risk having offspring with a greater number of harmful mutations
Males that face tougher competition for females risk having offspring with a greater number of harmful mutations in their genome than males without rivals. (2020-03-16)
How sperm unpack dad's genome so it can merge with mom's
UC San Diego researchers discover the enzyme SPRK1's role in reorganizing the paternal genome during the first moments of fertilization -- a finding that might help explain infertility cases of unknown cause. (2020-03-13)
Common feed ingredient tested safe in bulls
Cattle feeders choose distillers grains in feedlot diets as an inexpensive alternative to corn and soybean meal. (2020-03-10)
Swamp wallabies conceive new embryo before birth -- a unique reproductive strategy
Reproduction specialists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW), Germany, and the University of Melbourne, Australia, recently demonstrated that swamp wallabies ovulate, mate and form a new embryo before the birth of the previous offspring. (2020-03-02)
Antioxidant supplements do not improve male fertility, NIH study suggests
Antioxidant supplements do not improve semen quality among men with infertility, according to a new study supported by the Eunice Kennedy Shriver National Institute of Child Health and Human Development . (2020-02-28)
Monogamous female sea turtles? Yes, thanks to sperm storage
Female sea turtles mate multiply to ensure fertilization. A study of nesting loggerhead female sea turtles in southwest Florida used genotyping to uncover how many fathers were represented in their nests. (2020-02-27)
NUI Galway highlights reproductive flexibility in hydractinia, a Galway bay jellyfish
A new study, led by Dr Tim DuBuc and Professor Uri Frank from the Centre for Chromosome Biology at NUI Galway, has found that Hydractinia, a North Atlantic jellyfish that also lives in Galway Bay, reproduces in a similar way to humans but does so far more flexibly. (2020-02-21)
Stressed corals set up progeny for a better life
First evidence that animal DNA methylation patterns can be passed to the next generation. (2020-02-19)
A new way to assess male fertility
Current tests for male fertility include measuring the concentration and motility of spermatozoa. (2020-02-19)
Earthquakes disrupt sperm whales' ability to find food, study finds
Otago scientists studying sperm whales off the coast of Kaik?ura have discovered earthquakes affect their ability to find food for at least a year. (2020-02-19)
IVF-conceived children have somewhat higher mortality risk in their first weeks of life
Children conceived with assisted reproductive techniques including IVF have a somewhat higher mortality risk during their first weeks of life than children conceived naturally, according to a study by researchers at Karolinska Institutet in Sweden published in the journal Fertility and Sterility. (2020-02-18)
Scientists finally figure out how millipedes actually do it
Scientists have a pretty good handle on how the birds and the bees work, but it comes to mating, almost all millipedes have been a mystery -- until now. (2020-02-13)
How a tiny and strange marine animal produces unlimited eggs and sperm over its lifetime
During human embryonic development, a small pool of germ cells that will eventually become gametes is set aside, and all sperm or eggs that humans produce during their lives are the descendants of those original few germ cells. (2020-02-13)
Discovery of genes involved in infertility
A research group from Kumamoto University, Japan has discovered a gene, 'Meiosin', that acts as the switch to turn on meiosis. (2020-02-06)
UCLA research could be step toward lab-grown eggs and sperm to treat infertility
A new study on how and when the precursors to eggs and sperm are formed during development could help pave the way for generating egg and sperm cells in the lab to treat infertility. (2020-02-06)
Efficient cryopreservation of genetically modified rat spermatozoa
Researchers at Kumamoto University have developed a new technique to improve the efficiency of rat sperm cryopreservation, a process that is usually extremely difficult. (2020-01-31)
Study provides first look at sperm microbiome using RNA sequencing
A new collaborative study published by a research team from the Wayne State University School of Medicine, the CReATe Fertility Centre and the University of Massachusetts Amherst provides the first in-depth look at the microbiome of human sperm utilizing RNA sequencing with sufficient sensitivity to identify contamination and pathogenic bacterial colonization. (2020-01-30)
Stopping sperm in its tracks: latest progress in the hunt for a male contraceptive
Researchers at the University of Dundee have developed an unrivalled, fully automated robotic screening system which allows them to rapidly test the effect of drugs and other chemicals on human sperm. (2020-01-28)
NUS Medicine researchers can reprogramme cells to original state for regenerative medicine
Scientists from NUS Medicine have found a way to induce totipotency in embryonic cells that have already matured into pluripotency. (2020-01-28)
Bending with the wind, coral spawning linked to ocean environment
A research team from Tohoku University, Ochanomizu University, and the National Institute for Basic Biology have utilized modeling analysis to indicate that environmental factors act as a determinant in the timing of mass spawning. (2020-01-23)
Scanning system in sperm may control rate of human evolution
Maturing sperm cells turn on most of their genes, not to follow their genetic instructions like normal, but instead to repair DNA before passing it to the next generation, a new study finds. (2020-01-23)
Male fertility after chemotherapy: New questions raised
Professor Delbès, who specializes in reproductive toxicology, conducted a pilot study in collaboration with oncologists and fertility specialists from the McGill University Health Centre (MUHC) on a cohort of 13 patients, all survivors of pediatric leukemia and lymphoma. (2020-01-22)
Sperm donation to strangers after death should be allowed in the UK, say ethicists
Men in the UK should be allowed to voluntarily donate their sperm after death, if they want to, argue ethicists in an analysis published online in the Journal of Medical Ethics. (2020-01-20)
It takes more than two to tango: Microbial communities influence animal sex and reproduction
It is an awkward idea, but a couple's ability to have kids may partly depend on who else is present. (2020-01-17)
Dresden biologists make living sperm glow
By applying a novel method, biologists at TU Dresden have successfully analysed the metabolism of intact tissues of the fruit fly using a label-free microscopy technique. (2020-01-15)
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