UK study finds men also have a biological clock
...arly pregnancy onwards. It had involved 85% of the pregnancies of couples living in the Avon Health Authority who... 1992. Over 8,500 of the couples who said their pregnancies were planned had stated the time taken to conceive: the Bristol and Brunel teams used these data to ...Yale scientists identify genetic form of hypertension in pregnant women
...ith pregnancy complicates about six percent of all pregnancies and is a major public health problem, contributing to pre-eclampsia, a hypertensive disorder of pregnancy that increases both fetal and maternal morbidity and mortality. The causes are largely unknown. A steroid called aldosterone normally activates...Screening embryos for 'problem' chromosomes
...ortion rate was only 15%, compared with 95% of the pregnancies conceived without screening," Dr Munn said. "One in a hundred women over 35 may have aneuploidy and this rises to four in a hundred for women over 40. PGD reduces this number by at least half." Dr Munn said that a randomised trial was plann...Europe leads the world for IVF treatment
... which are replaced in the mother1s womb. Multiple pregnancies are riskier for both mothers and babies, and many doctors now try to avoid them wherever possible. Overall rates were 25.6 per cent twins, 3.4 per cent triplets, and 0.2 per cent quadruplets, making a total of 29.2 per cent in Europe as whole. In t...Women failing to take vitamin that helps prevent serious birth defects, survey finds
...n with these defects, and many additional affected pregnancies result in miscarriage or stillbirth. The most common NTD is spina bifida, a leading cause of childhood paralysis. To help prevent NTDs, all women capable of having a baby should consume a multivitamin containing 400 micrograms of folic acid every da...UCSF researchers find evidence of faulty DNA repair in some infertile men
... couples, Turek said. One concern is the health of pregnancies and children conceived with assisted reproductive techniques, such as intracytoplasmic sperm injection (ICSI) in cases of male infertility due to testes failure. This precise technique helps couples with severe male factor infertility have babies by ...Test provides accurate, noninvasive method to determine fetal lung development, UF researchers find
...n for the 130,000 women in the United States whose pregnancies are complicated by preterm premature rupture of the membranes each year. Such ruptures, which at times appear to be triggered by infection, are linked to at least one-third of preterm births. The research findings, to be presented Saturday (2/5) ...Common enzyme deficiency may jeopardize pregnancies
...oxidative stresses. The researchers compared the pregnancies of mutant mice with various degrees of G6PD deficiency to normal mice and found higher rates of prenatal and postnatal death in the deficient group. Another group of mutant mice was treated with a drug known to create oxidative stress called phenytoi...Higher obesity rates prevail among Dutch women exposed to famine in utero
... mothers were exposed to the famine early in their pregnancies wereespecially prone to later obesity, and the investigators conclude that thisdifference cannot be accounted for by increases in food intake or otherlifestyle factors such as socioeconomic status, smoking or alcohol. Increasedobesity may result, ra...New mouse model could be key to understanding role of folic acid in preventing birth defects
...can help prevent asignificant portion of the 4,000 pregnancies complicated each year in the U.S.with neural tube defects," Dr. Finnell said. "The health care cost nationwidefor these children would probably approach a billion dollars. If you could alsoprevent even a portion of the children born with cleft lip pa...Embryos that implant in uterus 'late' prove more likely to die in first weeks of pregnancy
...ting traces of ahormone called hCG confirmed these pregnancies and their loss. The 25 percentearly loss, when add...the nourishment andgrowth of the fetus. Surviving pregnancies implanted only about one dayearlier, on average, than the non-survivors: 10.5 days v. 9.1 days fromf...New study establishes when pregnancy starts
...researchers say. On day 11, more than50 percent of pregnancies fail and on day 12, that number jumps to more 80pe... 11) withimplantation after day 11." Three pregnancies in which the first rise in hormone occurred after day12 ended by themselves. "This study was...Study Finds Choline Deficiency Harms Memory Center In Mammals' Brains
... extra choline during days 12to 18 of their 21-day pregnancies had babies that performed much better onmemory tests for the rest of their lives," said Dr. Steven Zeisel, chair ofnutrition at the UNC-CH schools of public health and medicine. "Even very oldrats performed better on such tests as running through a m...Dietary Vitamin A Supplements Improve Maternal Survival In South Asia
...0 women to provide them with a supplement andtrack pregnancies and their outcomes. A total of 20,119 women became pregnant22,189 times. There were 110 maternal deaths. Few of these occurred in thepresence of medical practitioners. Therefore, the scientists attempted toidentify the likely causes by interviewing ...Center Set Up To Evaluate Evidence Of Chemical Threats To Human Reproduction
...ildrencannot do so, About half of all pregnancies are not successfully completed, --NIEHS research has shown that many fertilized fetuses disappear before theprospective mother is even aware she is pregnant -- Some 3 to 5 percent of newborns suffer from major birth defects,and ...Saving Endangered Species Becomes Part Of Ag Center's Animal Reproduction Projects
...ansferred to eland females. If any of theresulting pregnancies is successful, the world will see new bongo babies inJanuary or February 1999. "What we have learned from animal agriculture has implications forendangered wildlife," said Dr. Bill Richardson, LSU Ag Center chancellor."Likewise, we are also ......vents unrelated to transplantation such asmultiple pregnancies or multiple blood transfusions. "In essence, the immune systems of these transplant recipients arepre-armed to fight off a transplant." said Dr. Thomson. The Pittsburgh team is currently planning clinical protocolsincorporating t...UB Fertility Researchers Find They Can Predict Pregnancy By Assessing Two Sperm Abnormalities
...iences have found a link between specific clinical pregnancies and very low levels of two sperm abnormalities. ...f semen samples and comparing them with subsequent pregnancies in the couples studied, Burkman and colleagues determined that samples showing more than 14 percent ......ning groups, estrogen levels continued to rise and pregnancies resulted in all three groups. "This suggests that if you administer FSH until one follicle matures, then limit FSH and substitute LH, you can support the growth of the maturing......nt Greek medical writers believed that eight-month pregnancies were doomed or bad luck (even if the baby wasborn ... stages. The stages were justshorter or longer for pregnancies of different length. InDamastes case, the stages were foam, blood, flesh, form, motionand birth. Unl...