Sperm News and Research

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The term sperm refers to the male reproductive cells. In the types of sexual reproduction known as anisogamy and oogamy, there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. The human sperm cell is haploid, so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell.

Oxidative stress in sperm linked to male infertility

Universitat Autònoma de Barcelona (UAB) patented an innovative system to specify in a simple, cost-effective and reliable manner the infertility of a person through the study of oxidative stress on sperm, a parameter rarely studied until now.

1 Feb 2012

Study investigates trade-off between sperm quality and immunity

A new study shows the production of sperm is more biologically taxing than previously thought, and expending energy on it has significant health implications.

31 Jan 2012

New research gains increased respect for contraceptive method

Imagine a contraceptive that could, with one or two painless 15-minute non-surgical treatments, provide months of protection from pregnancy. And imagine that the equipment needed were already in physical therapists' offices around the world.

31 Jan 2012

Modern ultrasound for male contraception

The ideal male contraceptive would be inexpensive, reliable, and reversible. It would need to be long acting but have few side effects. New research published in BioMed Central's open access journal Reproductive Biology and Endocrinology used commercially available therapeutic ultrasound equipment to reduce sperm counts of male rats to levels which would result in infertility in humans.

30 Jan 2012

Artificial testes being developed to help infertile men produce sperm

Californian researchers are trying to create an artificial testicle that will produce human sperm. Dr. Paul Turek, director of the Turek Clinic in San Francisco, which specializes in male infertility, said the goal is not to create a testicular implant for men, but a “sperm-making biological machine” that will help scientists learn more about just what causes male infertility. “We’re trying to recreate the process of sperm production in a three-dimensional system,” Turek said. “Simple laboratory conditions can’t get it done in humans. Our concept is to actually recreate the testicle itself.”

22 Jan 2012

Implanting more embryos for IVF may do more harm than good: Study

Researchers have suggested that implanting multiple embryos for In Vitro Fertilization (IVF) may do more harm than good. This finding appeared in the current online version of the journal Lancet. The study argues against common practice of implanting multiple embryos in order to maximize a woman’s chances of conception during in vitro fertilization.

15 Jan 2012

TCM therapy makes fertility treatments far more effective: Study

Traditional Chinese medicine has long been used to ease pain, treat disease, boost fertility, and prevent miscarriage. Known in the Western medical community by its acronym TCM, these traditional remedies include herbal preparations and acupuncture. Now Tel Aviv University researchers have discovered that a combination of TCM therapy and intrauterine insemination (IUI) is a winning solution for hopeful mommies who are having trouble conceiving.

10 Jan 2012

DHA plays an essential role in creating healthy sperm

Who knew that male fertility depends on sperm-cell architecture? A University of Illinois study reports that a certain omega-3 fatty acid is necessary to construct the arch that turns a round, immature sperm cell into a pointy-headed super swimmer with an extra long tail.

10 Jan 2012

Twins born five years apart thanks to advanced reproductive technology

Floren Blake is a miracle baby for her parents. At just under two months of age she also has a “twin” five-year-old brother Reuben. Even the clinicians who delivered the baby girl in November last year were ecstatic said her 38-year-old mother, Jody Blake, as the family shared the excitement brought about by advances infertility treatment over the past 20 years.

5 Jan 2012

Adolescent children of lesbian mothers report good quality of life

Adolescent children of lesbian mothers report as good quality of life as those with heterosexual parents, reports a study in the January Journal of Developmental & Behavioral Pediatrics, the official journal of the Society for Developmental and Behavioral Pediatrics.

4 Jan 2012

Cardiff University technique could help predict IVF embryos with best success chances

A new technique successfully used in mice to identify embryos likely to result in a successful pregnancy could be used in humans, potentially boosting IVF success rates and helping to reduce the number of multiple births, according to Cardiff University scientists.

4 Jan 2012

Woman's ovarian cycle plays an important role in her susceptibility to infection

A new research report in the Journal of Leukocyte Biology suggests that a woman's ovarian cycle plays an important role in her susceptibility to infection.

4 Jan 2012

Viewpoints: Picking the 'right fights'; Sebelius's 'special place' in history

Republicans do need to fight for their priorities, but it helps to pick the right fights. They should return in 2012 ready to make their differences clear on taxes, health care, regulation, and how to grow an economy (12/23).

23 Dec 2011

Scientists discover gene that causes Weaver syndrome

Scientists have found a gene that causes Weaver syndrome, a rare genetic disorder that typically causes large size at birth, tall stature, developmental delay during childhood, and intellectual disability.

16 Dec 2011

Scientists shed light on 3-D structure of olfactory receptor binding site

Banana, mango or apricot - telling these smells apart is no problem for the human nose. How the olfactory organ distinguishes such similar smells has been uncovered by an interdisciplinary team of researchers at the RUB. The scientists were the first to shed light on the dynamics of the three-dimensional structure of the binding site of an olfactory receptor. In so doing, they also found a characteristic pattern of hydrogen bonds between odorant and receptor, which accounts for the specificity of the olfactory sensors.

14 Dec 2011

The Hormone Foundation publishes fact sheet about harmful hCG diet

In an effort to provide clarity to the confusion surrounding the human chorionic gonadotropin (hCG) diet, The Hormone Foundation, the public education affiliate of The Endocrine Society, today published, "Myth vs. Fact: The Human Chorionic Gonadotropin (hCG) Diet."

9 Dec 2011

Obesity maybe passed down from fathers to kids: Study

Australian researchers have found that the sperm of overweight fathers appears to carry a molecular signal that causes their offspring to inherit obesity. This may be more severe in female children and males they add.

5 Dec 2011

Four PhD graduates to showcase cutting-edge research in University of Leicester lectures

The University of Leicester has announced its upcoming Doctoral Inaugural Lectures for 2011, which celebrate and showcase four doctoral graduates who are both outstanding academically and able to present their work in a way that is accessible and engaging. The speakers will talk about their doctoral research, with subjects including: personalising asthma prescriptions, understanding growth disorders of bodily organs, building models of human brain function and defining the mechanisms of pollen fertility in plants.

30 Nov 2011

The untold stories of children of sperm donors

From Jennifer Lahl and The Center for Bioethics and Culture, producers of the award-winning Eggsploitation (2010), Anonymous Father's Day presents the untold stories of children of sperm donors.

21 Nov 2011