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Current Sperm News and Events

Current Sperm News and Events, Sperm News Articles.
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Moderate alcohol consumption may boost male fertility
The question of whether alcohol intake affects male reproductive function is controversial. (2018-07-18)
Studies of all PIH proteins in zebrafish reveal distinct roles in axonemal dynein assembly
A research team led by Masahide Kikkawa, a professor of the University of Tokyo, established zebrafish mutants of all four PIH-protein genes and solved the structures of axonemal dyneins in mutant spermatozoa by cryo-electron tomography. (2018-07-17)
Heritable genome editing: Action needed to secure responsible way forward
An independent inquiry by the Nuffield Council on Bioethics has concluded that editing the DNA of a human embryo, sperm, or egg to influence the characteristics of a future person ('heritable genome editing') could be morally permissible. (2018-07-16)
The first endemic Baltic Sea fish species received its name
Researchers at the University of Helsinki discovered and named a new endemic fish species in the Baltic Sea, the 'Baltic flounder,' Platichthys solemdali. (2018-07-11)
Rhino sperm from the cold
A new mixture of cryoprotectives allows for an unprecedented high motility of frozen rhinoceros sperm after thawing, report scientists from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) in Berlin, Germany. (2018-07-11)
Protein function repairing genetic damage in spermatogenesis identified
Researchers from the Department of Cell Biology, Physiology and Immunology and the Institute for Biotechnology and Biomedicine of the Universitat Autònoma de Barcelona, have unmasked the functioning of a protein involved in DNA repair, ATR, in the meiotic recombination process which takes place during the development of spermatocytes -- sperm precursor cells -- and how inhibiting this protein causes anomalies which block spermatogenesis. (2018-07-09)
Environmental impact passed on to offspring
Exposure to cold prior to conception causes the resulting offspring to have more brown adipose tissue, which protects against excess weight and metabolic disorders. (2018-07-09)
How to start a nanomotor?
Most people have never heard of them, and yet every living being needs them to survive: fine protrusions of cells known as cilia. (2018-07-05)
A diet rich in nuts improves sperm count and motility
The inclusion of nuts in a regular diet significantly improves the quality and function of human sperm, according to results of a randomised trial which measured conventional semen parameters and molecular changes over a 14-week study period. (2018-07-04)
A breakthrough to rescue the Northern White Rhino
Northern White Rhinos (NWR) are functionally extinct, as only two females of this species are left on the planet. (2018-07-04)
Sub-fertility in men treated with ICSI associated with an increased risk of prostate cancer
Subfertile men who have received fertility treatment with the microinjection technique of ICSI (intracytoplasmic sperm injection) have been found at a significantly greater risk of prostrate cancer, according to an analysis of three comprehensive nationwide registries in Sweden. (2018-07-03)
Energizing eggs with a patient's own mitochondria offers no benefit in assisted reproduction
A controversial technique of energizing eggs to improve their quality in assisted reproduction has been shown in an experimental randomized trial to offer no benefit in terms of pregnancy or live birth rate. (2018-07-03)
Antioxidant supplements fail to improve sperm quality in infertile men
Despite many study results suggesting that antioxidants have a positive effect on abnormal sperm parameters associated with male infertility, a large US clinical trial of 174 couples has found that an antioxidant formulation taken daily by the male partner for a minimum of three months made no difference to sperm concentration, motility or morphology, nor to the rate of DNA fragmentation. (2018-07-02)
The novel function of self-renewal factor of spermatogonial stem cells is identified
A research team found a novel function of FGF2 in mammalian testis. (2018-06-29)
Men may contribute to infertility through newly discovered part of sperm
The research identifies a new structure in human sperm that functions in the zygote and may provide new avenues for addressing male infertility and insights into early embryo developmental defects. (2018-06-07)
Prolonged stress can impact quality of sperm, according to Ben-Gurion U. researchers
'Mental stress is known to have an adverse effect on fertility, but there is little research on the impact of stress on sperm quality,' says Dr. (2018-06-06)
Why do older male birds father more illegitimate children?
When female birds have chicks as the result of an extra-marital fling, the fathers are almost always older males, and scientists are finding out why. (2018-05-31)
A new system is designed that improves the quality of frozen horse sperm
The method reduces ice crystals that form during cryopreservation and affect spermatozoon structure. (2018-05-17)
Hydrogen peroxide assists sexual reproduction in spruce
Plant physiologists from MSU proved for the first time that dangerous reactive oxygen species that are often considered as by-products of energy generation in cells, are required by the conifers to fertilize the egg cell. (2018-05-16)
Diverse and abundant megafauna documented at new Atlantic US Marine National Monument
Airborne marine biologists were dazzled by the diversity and abundance of large, unusual and sometimes endangered marine wildlife on a recent trip to the Northeast Canyons and Seamounts National Marine Monument, about 150 miles southeast of Cape Cod. (2018-05-16)
Taurine deficiency in sperm causes male infertility, study finds
Sperm cells have a unique shape that allows them to travel. (2018-05-11)
Key protein in sperm tail assembly identified
A study, published in the Journal of Cell Biology, focuses on the development of the sperm tail, the structure that enables sperm cells to swim and is therefore critical for male fertility. (2018-05-11)
Fight against Zika, dengue get boost from reliable spread of bacteria
How a bacteria hijacked insect fertility remained a mystery for five decades, until Associate Professor of Biological Sciences Seth Bordenstein and his team helped solve it. (2018-04-23)
Study examines sperm production in men with testicular cancer
In a study of men with testicular cancer, increasing tumor size relative to testis size was linked with a reduced ability to produce sperm. (2018-04-19)
Optogenetic study shows that male flies find ejaculation pleasurable
Researchers reporting in Current Biology on April 19 show that male fruit flies find sex -- and more specifically ejaculation -- to be an inherently rewarding experience. (2018-04-19)
Male contraceptive compound stops sperm without affecting hormones
A new study published today in the journal PLOS ONE details how a compound called EP055 binds to sperm proteins to significantly slow the overall mobility of the sperm without affecting hormones, making EP055 a potential 'male pill' without side effects. (2018-04-19)
Painkillers in pregnancy may affect baby's future fertility
Taking painkillers during pregnancy could affect the fertility of the unborn child in later life, research suggests. (2018-04-15)
UEA research paints underwater pictures with sound
Silent marine robots that record sounds underwater are allowing researchers to listen to the oceans as never before. (2018-04-10)
Does physical activity influence the health of future offspring?
Physical and mental exercise is not only beneficial for your own brain, but can also affect the learning ability of future offspring -- at least in mice. (2018-04-10)
Freezing breakthrough offers hope for African wild dogs
James Cook University researchers in Australia have helped develop a new way to save endangered African wild dogs. (2018-04-04)
Low sperm count not just a problem for fertility
A man's semen count is a marker of his general health, according to the largest study to date evaluating semen quality, reproductive function and metabolic risk in men referred for fertility evaluation. (2018-03-18)
Dimethandrolone undecanoate shows promise as a male birth control pill
A new birth control pill for men appears to be safe when used daily for a month, with hormone responses consistent with effective contraception, study researchers say. (2018-03-18)
Prenatal exposure to plasticizer may affect male fertility in future generations
Chemicals found in a variety of routinely used consumer products may be contributing to the substantial drop in sperm counts and sperm quality among men in recent decades, a new study in mice suggests. (2018-03-17)
New structure discovered in human sperm tails
A highly effective tail is needed in order for a sperm to be able to swim, and for a baby to be conceived. (2018-02-20)
Laboratory study shows that father's age can affect offspring lifespan
How does the father's age at conception affect his children? (2018-02-19)
New research: Increased stress on fathers leads to brain development changes in offspring
New research in mice has found that a father's stress affects the brain development of his offspring. (2018-02-16)
Working in harmony: New insights into how packages of DNA orchestrate development
New research from Huntsman Cancer Institute at the University of Utah illuminates aspects of how an early embryo, the product of fertilization of a female egg cell by a male sperm cell, can give rise to all the many cell types of the adult animal. (2018-02-15)
Antioxidant treatment prevents sexual transmission of Zika in mice
The antioxidant drug ebselen can prevent sexual transmission of Zika virus from male to female mice, according to new research published in PLOS Pathogens by Yogy Simanjuntak and colleagues at Academia Sinica, Taipei, Taiwan. (2018-02-15)
Clues to aging found in stem cells' genomes
In fruit flies, repeating genetic elements shrink with age, but then expand in future generations, a resurgence that may help explain how some cells stay immortal. (2018-02-13)
No sex for all-female fish species
They reproduce through gynogenesis. Their offspring are clones of the mother. (2018-02-12)
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