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Tag: "birth" at biology news

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...er have discovered one reason why infants with low birth weight have a high potential of developing type 2 ... result in intrauterine growth restriction and low birth weight. The Joslin study, published in the March edition of Diabetes, reinforces what scientists ha...

Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine

...lation over time a result of the difference in the birth and death rates of the leukemia cells. Scientists have also since discovered that CLL is not a uniform disease but rather a disease that follows two distinct clinical courses in patients. Some patients require no treatment and have a lifespan of mor...

Scientists discover the cellular roots of graying hair

...mice lost their melanocyte stem cells shortlyafter birth and quickly went gray. It may be that people who grayprematurely have mutations that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hai...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...mice lost their melanocyte stem cells shortlyafter birth and quickly went gray. It may be that people who grayprematurely have mutations that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hai...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...mice lost their melanocyte stem cells shortlyafter birth and quickly went gray. It may be that people who grayprematurely have mutations that knock out Bcl2 activity, Fisher says.“This tells us there is a requirement for Bcl2 in normal hair folliclecycling,?adds Fisher. “So the question is: what in the hai...

Vital step in cellular migration described by UCSD medical researchers

...'s own tissue." From the genesis of human life to birth and beyond, cell migration is a complex, extremely important process that is not completely understood by researchers. In order to move, a cell must be polarized so that the molecular processes at the front end and back end are different, leading onl...

Zebrafish may hold key to understanding human nerve cell development

...genitalheart defects, muscular dystrophy and other birth defects....

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

...genitalheart defects, muscular dystrophy and other birth defects....

GenMAPP 2.0 released

...genitalheart defects, muscular dystrophy and other birth defects....

The very unexpected life and death of a leukemic cell

...me can be attributed to the difference between the birth and death rates of the cells, according to the stu... leukemia cells. Chiorazzi and his team calculated birth and death rates of the leukemic cells and found that, contrary to expectations, production and destr...

Bone Density Recovers After Teens Stop Injected Contraceptive

....S. female adolescents from 15 to 19 who are using birth control use DMPA, as compared to 3 percent of U.S....traceptive Injection should be used as a long-term birth control method (e.g. longer than 2 years) only if other birth control methods are inadequate.?The bl...

Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth

..., higher exposure to PAHs at the time of the first birth was associated with increased risk. Neither associ... increased risk for exposure at menarche and first birth for premenopausal and postmenopausal participants, respectively, who were lifetime nonsmokers, there...

Rats infected as newborns grew up vulnerable to memory problems during an immune challenge

...ms or environmental stressors before or just after birth may foster susceptibility to neuropsychiatric and ...ses early in life, especially the first week after birth in rats, they may be involved in the ability to learn and remember, possibly via some link (says Bil...

How the environment could be damaging men's reproductive health

... 1996 and November 1997. The boys were examined at birth and one year later. Sixty-nine (5.7%) of the boys ...ts showed that the prevalence of cryptorchidism at birth in Lithuania was 5.7%, which was lower than in Denmark (9%), but higher than Finland (2.4%). These f...

Iron exporter revealed that may explain common human disorder

... transfer survived but quickly became anemic after birth due to iron deficiency in the blood. Examination of the animals' intestine, liver, and spleen revealed an accumulation of iron within cells, indicating an inability of cells to release iron once absorbed. Mice lacking ferroportin only in intestinal ...

Key mechanism in genetic inheritance during cell division identified

...egregation during mitosis contribute to cancer and birth defects. From various genetic experiments we know that the activity of a 10-protein complex of kinetochores, called Dam1, is responsible for the faithful segregation of chromosomes during mitosis. While we don't know at this time that ring formation ...

Multi-purpose protein regulates new protein synthesis and immune cell development

... that mice lacking both copies of IRE1 died before birth and had fewer hematopoietic stem cells ?precursor cells which develop into many different types of blood and immune cells ?than normal mice. Zhang transplanted hematopoietic stem cells from IRE1 knock-out embryos into mice whose bone marrow had been...

First frozen egg baby born in Canada

...ntreal is pleased to announce the first successful birth in Canada resulting from frozen eggs. A team led b...ctive Centre at the MUHC in Montreal confirmed the birth of a healthy baby boy, weighing 3740grams on April 29. "We are the first in-vitro fertilization (IVF...

New Estimates For The Causes Of Child Deaths Worldwide

...nia (10%), preterm delivery (10%), and asphyxia at birth (8%). Robert Black (Johns Hopkins Bloomberg Schoo... due to preterm delivery, sepsis or pneumonia, and birth asphyxia should also be addressed. The new estimates of the causes of child deaths should be used to...

Technique may allow cancer patients to freeze eggs, preserving fertility before starting treatment

...vitrified became fertilized with ICSI, with a live birth rate of about 30 percent, comparable to convention...VF when eggs are not frozen. The fertilization and birth rates for vitrified eggs are similar to the rates for control eggs that were not vitrified. For egg...

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