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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.

Maternal alcohol consumption impacts semen concentration in male offspring

Mothers who drink alcohol while they are pregnant may be damaging the fertility of their future sons, according to new research to be presented at the 26th annual meeting of the European Society of Human Reproduction and Embryology in Rome today (Tuesday 29 June).

29 Jun 2010

Transposons create genomic instability and are implicated in cancer and other diseases: Research

Transposons, or "jumping genes," make up roughly half of the human genome. Geneticists previously estimated that they replicate and insert themselves into new locations roughly one in every 20 live births.

28 Jun 2010

Mechanism that regulates stem-cell differentiation in mice may trigger degenerative disease in humans: Research

A mechanism that regulates stem-cell differentiation in mice testes suggests a similar process that may trigger degenerative disease in humans, according to a Penn State College of Agricultural Sciences reproductive physiologist.

28 Jun 2010

Female biology screens for the best sperm: Study

A new study has revealed that the female reproductive system is ‘choosy’ when it comes to inferior quality sperm and rejects the ‘advances’ of spermatozoa that are not good enough to create a pregnancy.

23 Jun 2010

Researchers review data comparing IUDs and hormonal contraceptives

Women who have had intrauterine devices fitted as contraceptives are less likely to become pregnant than those who have hormone injections, a new review by Cochrane Researchers has found. The review, which focused on women in developing countries, also found a possible link between contraceptive method and disease progression in HIV.

19 Jun 2010

FDA clears U.Va.'s SpermCheck Fertility at-home test

Couples will soon have a new tool in diagnosing male infertility - without the expense and inconvenience associated with a trip to a specialist's office.

14 Jun 2010

Children born after ART at increased risk of congenital malformation

Couples considering undergoing assisted reproductive technology (ART) treatment should be informed about the increased risk of congenital malformation posed by the use of ART, the annual conference of the European Society of Human Genetics will hear today (Monday). Dr. G-raldine Viot, a clinical geneticist at the Maternit- Port Royal hospital, Paris, France, will say that she believed that most doctors working in ART clinics in France only told couples about such risks if they were asked specific questions.

14 Jun 2010

In vitro fertilization ups the risk of birth defects: study

Researchers have found from a large scale study that in vitro fertilization of IVF is associated with an increased risk of birth defects in the baby. They urge doctors treating patients with infertility to routinely warn them about these risks. The study involved 33 centers for IVF in France and covered over 15,000 births from 2003 to 2007. This study is the largest till date.

14 Jun 2010

Emerging science of epigenetics offers new insights at crossroads of genes and the environment: Article

An emerging arm of molecular biology is introducing a new interpretation of traditional concepts of human disease, explains an article published today in Nature. According to author Dr. Arturas Petronis at the Centre for Addiction and Mental Health, the emerging science of epigenetics is offering new insights at the crossroads of genes and the environment, or nature and nurture. Dr. Petronis is head of the Krembil Family Epigenetics Laboratory at CAMH and an international expert in the field.

11 Jun 2010

World's largest DNA scan reveals new genetic changes in autistic children

The world's largest DNA scan for familial autism has uncovered new genetic changes in autistic children that are often not present in their parents. Identified in less than 1 percent of the population, these rare variants occur nearly 20 percent more in autistic children.

10 Jun 2010

Single semen test for clearance following vasectomy

Having to provide repeated semen samples following a vasectomy could soon be a thing of the past, after 96 per cent of men were given the all-clear based on a single test three months after surgery.

8 Jun 2010

Researchers underscore role of jumping genes in maintaining genetic diversity

Using high-throughput sequencing to map the locations of a common type of jumping gene within a person's entire genome, researchers at the University of Pennsylvania School of Medicine found extensive variation in these locations among the individuals they studied, further underscoring the role of these errant genes in maintaining genetic diversity.

4 Jun 2010

Testosterone deficiency can lead to multiple disorders

Almost a quarter of men treated for cancer in their childhood suffer from a deficiency of the male sex hormone testosterone.

3 Jun 2010

Researchers discover method to select sperm with highest DNA integrity

Researchers at Yale School of Medicine have discovered a method to select sperm with the highest DNA integrity in a bid to improve male fertility. The method is comparable to that of the egg's natural selection abilities, according to the study published in the June/July issue of the Journal of Andrology.

29 May 2010

Northwestern Memorial performs robotic assisted vasectomy reversal using da Vinci surgical robot

In 1989 a 29-year-old Michael Schrader had it all: steady job, a wife, and two wonderful children-daughter Courtney and son Cameron. He couldn't envision wanting more-that is, more children. Taking steps to keep his nuclear family intact, he underwent vasectomy- a procedure so routine he was back on the golf course the next afternoon.

28 May 2010

UT Southwestern researchers create 35 new rat "lines" with mutations in specific genes

For two decades, the laboratory mouse has been the workhorse of biomedical studies and the only mammal whose genes scientists could effectively and reliably manipulate to study human diseases and conditions.

28 May 2010

Conceptual Options to conduct FREE seminar on Surrogacy, Embryo, Sperm and Egg Donation

The Surrogacy and Egg Donation Center, Conceptual Options, will be conducting a FREE seminar in Miami, Florida on the 17th and 18th of July 2010. These one-day FREE seminars will include a morning seminar and afternoon individual consultations. This seminar will focus on Surrogacy, Embryo, Sperm and Egg Donation and will be held at the Four Seasons resort in Miami, Florida.

26 May 2010

Carolina Conceptions receives IRB approval to study on new egg freezing technology

Carolina Conceptions, an infertility practice in Raleigh, NC, announces IRB approval to commence a study on egg freezing - a newer technology that is growing in demand. While embryo and sperm freezing have been the standard of care for decades, egg freezing has been slower to achieve the same level of success.

26 May 2010

FDA approves Conceptus' ESS305 Essure procedure for increased bilateral placement rate of 96.9%

Conceptus Inc., developer of the Essure(R) procedure, the first and proven non-surgical permanent birth control method, announced today that the third generation (ESS305) of the Essure procedure has received FDA-approval for an improved bilateral placement rate of 96.9%. Improvement in the hysteroscopic time of 9 minutes is an additional benefit.

19 May 2010

ISCA recommends chromosomal microarray as new standard for genetic evaluation of children

An international consortium of genetics experts has issued a consensus statement recommending chromosomal microarray (CMA) as the new standard practice for genetic evaluation of children with unexplained developmental delay, autism or birth defects.

14 May 2010

Sperm News and Research

Further Reading

Maternal alcohol consumption impacts semen concentration in male offspring

Transposons create genomic instability and are implicated in cancer and other diseases: Research

Mechanism that regulates stem-cell differentiation in mice may trigger degenerative disease in humans: Research

Female biology screens for the best sperm: Study

Researchers review data comparing IUDs and hormonal contraceptives

FDA clears U.Va.'s SpermCheck Fertility at-home test

Children born after ART at increased risk of congenital malformation

In vitro fertilization ups the risk of birth defects: study

Emerging science of epigenetics offers new insights at crossroads of genes and the environment: Article

World's largest DNA scan reveals new genetic changes in autistic children

Single semen test for clearance following vasectomy

Researchers underscore role of jumping genes in maintaining genetic diversity

Testosterone deficiency can lead to multiple disorders

Researchers discover method to select sperm with highest DNA integrity

Northwestern Memorial performs robotic assisted vasectomy reversal using da Vinci surgical robot

UT Southwestern researchers create 35 new rat "lines" with mutations in specific genes

Conceptual Options to conduct FREE seminar on Surrogacy, Embryo, Sperm and Egg Donation

Carolina Conceptions receives IRB approval to study on new egg freezing technology

FDA approves Conceptus' ESS305 Essure procedure for increased bilateral placement rate of 96.9%

ISCA recommends chromosomal microarray as new standard for genetic evaluation of children

Sensing a Healthier Future

Achieving and maintaining ISO/IEC 27001 and BS 10012 certifications

Expanding research and clinical options for children with cancer

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