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Pregnancy & Baby Index: Fertility and Conception: Research
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Boy or girl? The mysteries of gender selection Parents have been trying to influence the sex of their baby at conception for as long as people have been trying to make babies. While there have been many myths regarding gender selection, there has also been legitimate scientific research in this f
A suprising pair of proteins help make healthy eggs Biologists at Brown University and the University of California–Berkeley have discovered that two proteins team up to turn on an assortment of ovarian genes critical to the production of healthy eggs. This finding, published in the Proceedings of the
Americans prefer to leave child's sex to chance Most people would not choose the sex of their child if given the option, according to a new nationwide survey. The study is the first to examine the demand and preferences for sex selection among the U.S. general population.
Another reason to take a pregnancy test twice Commercially available pregnancy tests kits may not be accurate on the first day or so after a missed period because of natural variability in ovulation and when developing embryos attach themselves to the lining of the wombs.
Beautiful parents more likely to have daughters Very attractive individuals are 26 per cent less likely to have a son, according to research by Dr Satoshi Kanazawa of LSE's Interdisciplinary Institute of Management.
Boys more likely when pregnancy takes longer The longer it takes to get pregnant, the more chance there is of having a boy, finds a study in this week's BMJ. Dutch researchers analysed data for 5,283 women who gave birth to single babies between July 2001 and July 2003.
Changes to diet and lifestyle may help prevent infertility from ovulatory disorders Women who followed a combination of five or more lifestyle factors, including changing specific aspects of their diets, experienced more than 80 percent less relative risk of infertility due to ovulatory disorders compared to women who engaged in non
Dietary supplement boosts IVF hopes "AT THIS point I'll try anything I can to have a child," says Emma*, a 38-year-old teacher from London. Emma faces a similar problem to many women: her ovaries produce too few ripe eggs for doctors to extract and use for in-vitro fertilisation (IVF).
Eggs from stem cells can help women conceive Monash researchers have developed a process that causes embryonic stem (ES) cells to develop into ovarian structures containing eggs.
Folate/IVF linked to increased rate of twins With the UK government considering whether to fortify flour with folic acid, results of a study in a May 2006 issue of The Lancet highlight how such fortification may increase the rate of twin births after in-vitro fertilization (IVF) where mo
Forget basal body temperature - check out her clothes Was Chris De Burgh's sexy "Lady in Red," perhaps, ovulating? A new UCLA and University of Wisconsin-Eau Claire study finds evidence that women put more effort into their clothing and grooming during their most fertile periods.
Genetic testing still smart choice, despite uncertainties Technique to pick healthy embryos highly reliable, but small margin of error remains.
Getting pregnant could be as easy as 1, 2! Can there really be two simple steps to find out when you're most fertile? Find out more here about the "TwoDay" method of natural family planning.
Help for endometriosis sufferers There is no way to prevent endometriosis. It's a fancy name for the chronic disease that afflicts an estimated 5.5 million women in North America, and numbers are on the rise.
Hot tub use during early pregnancy may up miscarriage risk The experience of sitting in a hot tub or whirlpool may increase the risk of miscarriage in newly pregnant women, according to a recent study published in the American Journal of Epidemiology .
How fast is your biological clock ticking? Do you still have time to have a baby? If so, how long? In the past, these were questions that could only be answered in hindsight. But recently, British researchers have found a strong direct relationship between ovarian volume and the number of egg
I'm stuck on you, baby Researchers have discovered how an embryo initially attaches to the wall of the uterus -- what appears to be one of the earliest steps needed to establish a successful pregnancy.
Is infertility stressing you out? Or is it the other way around? There is no doubt that infertility causes stress, but can stress be the cause of your infertility?
Multiple pregnancies and advanced fertility treatments Assisted Reproductive Technologies (ART) include a variety of treatment options such as in vitro fertilization (IVF) which have literally helped thousands of previously infertile couples to conceive. Of late, many news stories have focused on multip
New procedure can prevent genetic disease before pregnancy A new procedure called Preimplantation Genetic Diagnosis (PGD) can now screen embryos for aneuploidy (a condition indicating chromosomal defects) before they are transferred into the uterus during an IVF procedure. PGD can be used for couples experie
New research on multiple vs single births may offer new approaches for infertility The multiple "litter" births of mice, versus the normal singleton pregnancy of humans, is due to defective processing in mice of a common mammalian protein called bone morphogenetic protein 15 (BMP-15), according to new study by University of Califor
Oral contraceptive use may be good for IVF patients Pre-treating fertility patients with oral
contraceptives allows for a treatment regimen which includes fewer
fertility drug injections and offers flexibility for egg retrieval,
according to a study released in October 2003 at the American Societ
Pop, pass on the grass Men who smoke marijuana frequently have significantly less seminal fluid, a lower total sperm count and their sperm behave abnormally, all of which may affect fertility adversely, a new study in reproductive physiology at the University at Buffalo ha
Preserving fertility among childhood cancer survivors Women who were treated with
radiation therapy to cure Wilms tumor as a child can go on to have healthy
babies so long as their entire pelvis was not irradiated, according to a new
study in the April 2004 issue of the International Journal of R
Protein in male reproductive tract kills bacteria, may improve fertility Scientists have found that a protein discovered three years ago in the male reproductive tract is a potent antibacterial agent. In addition to protecting against invading bacteria, the protein may aid fertilization by protecting sperm from harmful or
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