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Tag: "mature" at medical news

First Study to Show How Immune Cells 'Speak' to Each Other in Vivo

... over the existence and functional significance of mature immunological synapses in vivo during antiviral immune responses. The findings will allow further experimental exploration of immunological synaptic function during normal and pathological immune responses in vivo. The mechanism of how immunologica...

New Mad cow case confirmed in Canada

Canada's eighth case of mad-cow disease in a mature beef cow has been confirmed from Alberta by government officials on Wednesday.// The Canadian Food Inspection Agency has assured people that no part of the animal's carcass has entered human or animal food chains. The CFI said, "Preliminary info...

Feedback Loop Governing Ovarian Development Unraveled

... to have too few germ cells. The animal could well mature with this defect and suffer from reduced fertility. But it does not. Instead, they found that the ovary has a way to sense its lack of germ cells and steps up production. "Within three days, the ovary catches up; it then has enough germ cells," says ...

Cancer Affects Mature Muscle Fibers

...say that rather than immature tissue fibers, it is mature muscle fibers// that are affected by cancer. The r...nown which type of tissue turned into tumor cells: mature muscle cells or the more immature cells that surround or form them. The question arose partly becaus...

Mature Muscle Fibers Can Revert to Become Cancerous

...nown which type of tissue turned into tumor cells: mature muscle cells or the more immature cells that surro...rounded by satellite cells, which can develop into mature muscle cells, each having a single nucleus. Both muscle and satellite cells are in turn surrounded b...

Greater g factor in men responsible for sex differences in general mental ability

...s, the sex difference is not obvious because girls mature faster than boys. This is the reason why sex diffe...he same in general mental ability. Because girls mature faster than boys, the sex difference is masked during the school years. Since almost all the data sh...

Adolescent Girl Athletes More Likely to Injure Knees Than Boys

...ons why the knee injury disproportionately affects mature girls. The study's author, Dr. Christopher S. Ahma...stress on the ACL. Second, girls become skeletally mature earlier during puberty, and they tend to perform their sports activities in a more upright position ...

Insight Into Tanning Process Suggests Novel Way to Prevent Skin Cancer

...n developing melanocytes," Fisher proposes. "Would mature melanocytes then be permanently 'crippled,' unable to respond to UV, regardless of how its signals were transmitted?” One way to disprove that "permanently crippled" scenario would be to see if melanocytes with abnormal MC1R receptors can be coaxed...

Are mature cells better than stem cells for cloning?

... can be performed without the stem cells and other mature cells seem to perform better//. Two baby mice we...s only 1-5% in studies using adult stem cells from mature tissue to generate early stage embryo. Dr Tao Cheng and colleagues conducted studies to detect if ...

Potential Target for Leukemia Treatment

...ng hematological malignancy.” The development of mature white blood cells, including lymphocytes, is a highly complex process involving cell growth as well as specific genetic and biochemical steps. Disruption of this process is associated with diseases such as leukemia. RhoH GTPase is specific to blood...

Some Antidepressants may Cause Aggression in Adolescents

...ine (sold in pill form as Prozac) to pubescent and mature hamsters. They injected either a low dose (10 milligrams per kilo of body weight) or a high dose (20 milligrams per kilo body weight), while other hamsters received a placebo. The researchers then introduced a smaller, same-sex hamster into the c...

Naturally Occurring Enzyme Can Break Down Key Part of Alzheimer's Plaques

...gests they should constantly grow, plaques reach a mature size and stop growing," Lee says. "It's possible that production of MMP-9 and other similar substances by support cells in the brain is establishing a balance that prevents the plaques from growing beyond a certain size." To follow up, Lee plans to...

Breast reconstruction may be possible with fat stem cells

... to these beads and are able to differentiate into mature fat cells. When injected under the skin in a rat model, the cellular combination eventually formed what they describe as a "mound" of tissue. The fat-derived stem cells being used in the study are obtained from breast cancer patients. "We need to ...

Male Contraceptive Drug - Non Hormonal Alternative

... testes, they are helped in their development into mature sperm by special tissue called Sertoli cells. Adherin acts by breaking the bond between the immature sperm and the Sertoli cells. Therefore the male hormones are not affected at all. Adherin is toxic on its own in high doses. By binding it with a sy...

Stem cells in regeneration of breast tissue in Cancer patients

... easily adhere to the beads and differentiate into mature fat cells. When these cells are in turn injected into the skin of the lab rats, mounds of tissue are formed by them. "We need to demonstrate that fat-derived stem cells taken from a breast cancer patient behave no differently than those from other ...

Artificial Liver from Cord Blood Stem cells

...an be made use of to mend damaged liver and also a mature functioning form. Scientists from Newcastle Uni...cohol and drug abuse. They also foresee generating mature liver that can be used in patients the same way as dialysis machines are used. Alison Rogers of th...

Consequences Of Smoking On Fractures & Ligament Injuries

... show that there was a delay in the development of mature cartilage cells in the mice exposed to cigarette smoke. This was the first study to analyze the molecular and cellular mechanisms of fracture healing in mice exposed to smoke. The authors note that while the study shows a clear relationship between...

Cell Transplants Can Even Help In Restoring Vision

... Jane Sowden, said: 'Remarkably, we found that the mature retina, previously believed to have no capacity for repair, is in fact able to support the development of new functional photoreceptors.' However to get involved in such transplants in human, stem cells from a foetus during the second trimester of...

Alternative Splicing - Molecular Cloning

...known as pre-mRNA, is pieced together to produce a mature mRNA that codes for cellular proteins. In alternative splicing, different piecesof this pre-mRNA, called exons, are stitched together to produce different mRNAs, and thus different proteins. The exon can be spliced in or out in a binary, computer-lik...

Research 'Extraordinaire' To Restore Vision

...ent to the brain. It is indeed remarkable that the mature recipient retina, which was considered to lack the potential for repair, does in fact, supports the development of the transplanted immature cells. If the technique were to be extrapolated on to humans, it would involve taking stem cells from secon...

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