Sperm News and Research

RSS

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.

As red states push strident abortion bans, other restrictions suddenly look less extreme

What is the ultimate goal of the anti-abortion movement? It might be surprising.

30 Mar 2022

Study reveals a deeper level of cellular heterogeneity within fallopian tubes

The fallopian tube is the site of fertilization, where once a month for the duration of a female's post-pubescent, pre-menopausal life, an egg is moved from the ovary, ready for fertilization by a sperm cell.

29 Mar 2022

Non-hormonal male contraceptive effectively prevents pregnancy in mice

Women have many choices for birth control, ranging from pills to patches to intrauterine devices, and partly as a result, they bear most of the burden of preventing pregnancy.

24 Mar 2022

Study reveals how to identify and avoid risks related to mitochondrial therapeutic interventions

Research carried out at the Centro Nacional de Investigaciones Cardiovasculares (CNIC) has demonstrated that mixing mitochondrial DNAs (mtDNAs) of different origins can have damaging effects over the medium and long term.

16 Mar 2022

Study shows correlation between maternal lead exposure and sex ratio of offspring

Higher lead levels in a mother's blood can increase the chance of her bearing male offspring, according to new research led by Japanese scientists at the Tohoku University Graduate School of Medicine.

14 Mar 2022

Research sheds light on important events that may play a role in infertility

Everyone considers sperm to be made exclusively by males. But did you know that females also make sperm? Well, it turns out that females also contribute to what makes a sperm a sperm.

8 Mar 2022

Women with one ovary less likely to have a successful IVF outcome, study shows

Women who have had one ovary surgically removed (unilateral oophorectomy) are less likely to become pregnant after in vitro fertilization and give birth to fewer babies than women with both ovaries.

8 Mar 2022

Study uncovers new clues about the cellular processes that can lead to androgen deficiency

A laboratory study at the Miller School of Medicine's Desai Sethi Urology Institute has uncovered new clues about the cellular processes that can lead to deficiencies of androgens (male hormones) such as testosterone.

4 Mar 2022

Buccal cell epigenetic biomarkers may predict preterm birth

A signature found in the cheek cells of mothers and fathers of preterm infants may help develop a test to determine whether a pregnancy may end too early.

1 Mar 2022

Periconceptional maternal smoking associated with delay in embryonic development

Smoking by mothers during the period immediately before and after conception is linked to a delay in embryonic development, smaller foetuses at the time of the 20-week ultrasound scan, and lower birth weight.

23 Feb 2022

Common infertility treatment linked to increased risk for vascular and pregnancy-related complications

Women who conceive with assisted reproductive technology (infertility treatment) may be at increased risk for vascular and pregnancy-related complications, according to new research published today in a special Go Red for Women issue of the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

22 Feb 2022

Study describes sequelae presenting more than six months after COVID-19 in non-hospitalized young adults

A recent study described COVID-19 sequelae developed in non-hospitalized young adults more than six months after COVID-19 infection.

15 Feb 2022

Researchers identify autoantibody targets in COVID-19 patients

In a new study, researchers have been investigating auto-immune responses to natural human antigens in COVID-19 patients.

14 Feb 2022

Ultrasound treatment to boost sperm motility could increase a couple’s chances of conceiving

Researchers from Monash University have discovered that using high-frequency ultrasound can boost the motility of sperm, potentially increasing a couple’s chances of conceiving.

14 Feb 2022

Discovery shows promise for development of a new non-hormonal contraceptive

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 non-hormonal, over-the-counter contraception.

7 Feb 2022

Damon Runyon Cancer Research Foundation announces newest cohort of Fellows and Breakthrough Scientists

The Damon Runyon Cancer Research Foundation has announced its newest cohort of Damon Runyon Fellows, 13 outstanding postdoctoral scientists conducting basic and translational cancer research in the laboratories of leading senior investigators.

29 Jan 2022

New data suggests that post-vaccination menstrual changes are short-lived

Many women have reported changes to their periods after a covid-19 vaccination and the US National Institutes of Health has allocated $1.67m for research into a possible connection.

28 Jan 2022

COVID-19 vaccination does not affect fertility outcomes in patients undergoing in-vitro fertilization

Vaccination against COVID-19 did not affect fertility outcomes in patients undergoing in-vitro fertilization (IVF), a new study has found.

27 Jan 2022

COVID-19 vaccine does not lead to infertility in either men or women

In a recent prospective cohort study accepted to the American Journal of Epidemiology, researchers observed links between female and male coronavirus disease 2019 (COVID-19) vaccination and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and fecundability or the per-cycle likelihood of conception in North American couples seeking to conceive.

26 Jan 2022

COVID-19 vaccination does not impair fertility, suggests BU study

New findings by Boston University School of Public Health investigators indicate that COVID-19 vaccination does not impair fertility-;but males who become infected by the coronavirus may experience short-term reduced fertility.

21 Jan 2022