Why are the pigs in Spain infertile?

infertile-spanish-pigsAnd why might this be important? Unless you are a Spanish farmer raising swine, or unless you live in Spain and are in the market for pork or ham, it should not matter. But is you work in the fertility field or are trying to get pregnant, it may be an issue. The concern over what is going on with Spanish pigs, is really about why the pigs were having trouble reproducing. It turns out that back in 2010, there was a marked drop in fertility in pig farms across difference regions of Spain. Investigators at first had trouble figuring our where there problem was. The one common thread in each of these farms was that all of the farms used plastic bags from the same manufacturer to collect semen for insemination. A researcher at the University of Zarazoga, Cristina Nerín, then analyzed the bags and found that an ingredient in the plastic bags was the cause of infertile Spanish pigs. The scary part is that this chemical (and similar compounds) are found in plastic products that are used to package foods and beverages we eat every day. The good news is that the pigs of Spain and happily producing lots of piglets again. However, there is likely more to come on this topic in reproductive medicine and potentially in other areas of medicine as well.

 

Cell phones and male fertility

Sperm-motility-cell-phoneA recent study suggests that men who keeps their cellphones in their pants pockets, may have lower sperm motility. Researchers at the University of Exeter in the UK, found that men who kept cell phones in their pockets had lower sperm motility than those who did not, about an 8% reduction. Is this an issue? It remains to be seen whether this decrease really affects a couple’s chances for pregnancy and truly causes infertility.

 

A world where everyone has infertility- coming soon to cable

The lottery- a future where everyone has infertility

The lottery- a future where everyone has infertility

Think going through fertility treatment today is stressful ? Imagine in a world in which everyone suffers from infertility, everyone needs donor embryos in order to get pregnant and there are not nearly enough embryos to around. Lifetime network plans to release a trailer for a series called the Lottery with just that story line. In the show, mankind faces extinction as no one is able to conceive and no babies are born. The only hope is in a small batch of embryos, the fate of which, and of mankind’s survival is left up to a lottery.

Marijuana and abnormal sperm

Sperm-effects of marijuanaWith some states choosing to legalize marijuana, we hear very little of cannabis’ effects on health, and even less on its impact on reproductive health. We have know for years that pot smoking can cause chromosomal breakage, and so for those couples trying to get pregnant, many reproductive specialists encourage both partners to quit when attempting pregnancy. Now, some new data out of the UK shows men who use marijuana are considerably more likely to have abnormally shaped sperm, Interestingly, in the same study, alcohol and tobacco did not.  Since even in normal men, it is normal to have some proportion of misshapen sperm, this finding in itself is not enough information to say that marijuana causes infertility. Still, why take the chance? This is just another good reason to quit if you are planning to start a family in the near future.

PCOS, inflammation and pregnancy

PCOS-on-ultrasoundPolycystic ovarian syndrome (PCOS) is one the most common hormone problems in women of reproductive age as well as one of the most common causes for female infertility. While infertility caused by PCOS is often amenable to treatment, women with PCOS often have more complicated pregnancies, including problems such as gestational diabetes and pre-eclampsia.  One of the common threads with these issues is their association with inflammation. It turns out there may now be a link explaining why PCOS patients have more complications. A recent study shows that markers of inflammation are higher in PCOS women and become even worse when these women get pregnant. It could be that inflammation is the common link between in PCOS and a number of pregnancy complications.

UK Authorities gives three parent IVF the green light

Princeton IVF-UK HFEASeveral months back, we reported in our blog that the authorities that regulate IVF and other fertility procedures in the UK were considering allowing IVF with mitochondrial transfer to move forward. Mitochondrial transfer is more popularly known as “three parent IVF,” because it involves three genetic parents: the woman who provides her chromosomes, the husband who provides his chromosomes and the donor who provides the mitochondria which contain their own DNA.  The HFEA in the UK has now given the green light for tightly regulated research to proceed on mitochondrial transfer. So, now it is likely that fertility researchers in Britain will move forward and learn whether this technique can help couples with mitochondrial diseases.