Reply by the Central Pollution Control Board (CPCB) in compliance to the National Green Tribunal (NGT) order dated January 21, 2024 in the matter of ‘News item titled “Feeling anxious? Toxic air could be to blame” appearing in Times of India dated 10.10.2023’. NGT had directed CPCB to file a …
decreasing sperm count and infertility in recent years may have not much to do with chemicals that mimic female hormones in the environment. Recent research shows that sperm actively needs female hormones, oestrogen, to mature fully, thrive and function effectively ( Nature , Vol 390, No 6659). Ever since sex …
gerald wilkinson and his colleagues at the University of Maryland, usa, have discovered that the female-to-male ratio of the Cyrtodiopsis whitei flies is 2:1, contrary to the fact that the x and y chromosomes, responsible for deciding the sex of progeny, are equal in number. This means that there is …
all evolutionary changes are ultimately brought about through mutations. Occurring at random, mutations lead to the creation of new genes that carry the various hereditary traits. The likelihood of a certain mutation occurring has no connection with whether it is likely to benefit or harm the individual. Genes in all …
An embryo kept frozen for seven years has developed into a healthy baby body. According to medical experts, the four-kilogramme infant was the world's oldest new-born. The child was delivered by caesarean section at Encino-Tarzana Regional Medical Centre, California. The embryo was frozen in 1989 after the couple underwent treatments …
an old dogma in developmental biology is that there are two classes of developmental systems. Each class embodies principles that ensure the orderly progression of a relatively unstructured fertilised egg to the highly structured adult. The classes are called mosaic and regulative. A mosaic embryo is believed to come pre-equipped …
Richard Seed is an expert on seeds. Twenty years ago he used to transfer embryos from one cow to another. Then he began to use the same techniques on women. Then he shocked the world by announcing that he would like to clone human babies for desperate couples. This brought …
Total fertility rate (TFR) of Sri Lankan women is now estimated to be lower than that of their counterparts in some developed nations. TFR in Sri Lanka has fallen much faster than what was officially projected, reaching the targeted replacement level of 2.1 in 1993, almost eight years before the …
It's a man's life they say. Join up and see a man's world, for even when it comes to kidney transplants men have the cake and eat it too. Are the new technologies that are coming up anti-women or is it a question of male behaviour? This strange pattern of …
there have been mixed reactions in the us over a lady giving birth to seven babies. Only one of the babies - of Bobbi and Kenny McCaughey - was still breathing with the aid of a ventilator. The other six were breathing normally. For the clients of Washington-based psychologist, Susan …
human sperm count and quality of semen have shown a decline in India in the past decade, report scientists at the Institute of Research in Reproduction ( irr ), Mumbai. They reached the conclusion after studying semen samples of more than 1,500 humans from various parts of the country between …
DOCTORS in the US have successfully performed an experiment where a woman has given birth after being implanted with eggs that had been frozen. Up till now, doctors in the US have been able to produce pregnancies from frozen embryos which meant eggs fertilised with sperm and then frozen but …
women who give birth to babies in their forties have a high chance of living a longer and less-disease prone life. A team of researchers led by Thomas T Perls at the Harvard Medical School, Boston, usa , reports that women who have babies after age 40, live longer than …
Thailand is drafting legislation to protect the rights of children born through artificial insemination. The bill, first of its kind in the country, is expected to be finished by the end of the year. The National Youth Bureau's subcommittee, responsible for the scrutiny of laws concerning the nation's youth, has …
researchers at Tokyo's Juntendo University have released pictures of an artificial womb which has been used to bring a 17-week-old goat foetus to 'birth', three weeks later. The team, led by Yoshinore Kuwabara, professor of obstetrics at Juntendo University, removed a goat embryo from its 17-week-pregnant mother and then placed …
efforts to introduce a birth control pill in elephants have been suspended in South Africa after the normally orderly herds of the pachyderms were thrown into confusion. The new measures for population control in the overcrowded Kruger National Park are being tried out after the controversial culling of elephants was …
Epidemiologists at the University of California, Davis, suggest that stress from long work hours can triple the risk of miscarriage. After questioning 584 female lawyers about their domestic and professional lives, the researchers could establish a clear link between the long hours of work and the chances of miscarriage in …
POLYEMBRYONY is the strategy to split embryos to produce many identical off-springs. Eighteen animals are known to use this strategy as their method of reproduction. Biologists from the State University of New York say that as compared to asexual and normal sexual reproduction, polyembryony appears to offer the worst of …
IN WHAT is described as a medical first, a four-month-old foetus, genetically doomed to have a disastrously weak immune system, as he was diagnosed to have severe combined immunod- eficiency (SCID), was successfully given a bone marrow transplant while in the womb. The foetus was administered marrow cells from his …
a report of the Commission of Inquiry into Foetal Sentience, a body set up by care, a British educational charity, says that at as early as 11 weeks period, a human foetus can experience some kind of primitive pain. This is in stark contrast to the belief that it is …
