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Tag: "ovary" at biology news

Stem cells in bone marrow replenish mouse ovaries

... marrow and blood of mice can "restock" a depleted ovary with new egg cells within weeks, according to new ...certain hormones. Further results suggest that the ovary itself is sending out a chemical signal to the bone marrow, readying the progenitor cells to travel ...

By creating molecular bridge, scientists change function of a protein

...hormone receptor mostly expressed in the prostate, ovary and urinary tract. What they did was modify the estrogen receptor in a step-wise fashion, Zhao said. They used testosterone and progesterone to build the bridge. The receptor was gradually altered to accept one steroid, then another, until accepting...

New Discovery May Help Doctors Treat Infertility

...eceptor plays a role in moving the egg outside the ovary so it can be fertilized,?said Kenneth Korach, Ph.D., Laboratory Chief at the National Institute of Environmental Health Sciences (NIEHS) where the research was conducted. “We never knew before what function this receptor played in reproduction.?/p...

Israeli scientists successfully transplant frozen-thawed ovaries in sheep

...infertile after their treatment," she said. Whole ovary autologous transplants have already been attempted...es into the upper arm, but in neither case was the ovary frozen and thawed first[2]. Another much-researched option is freezing and transplanting thawed ova...

ASU researchers find link between social behavior, maternal traits in bees

...iffer between the two strains also correlated with ovary size in the experiment. The success of Amdam's research could prove more far-reaching than just the evolution of bee social behavior--scientists can use the findings as a stepping stone when looking at the social evolution of other animals. "Our fi...

New weapon in battle against osteoporosis

...y we were able to diminish the bone loss caused by ovary removal," explains the molecular biologist. Many patients carry a particular variant of the CB2 gene But how far can these results be applied to human beings? To answer this question, Dr. Karsak turned to a team of scientists working in France ...

Researchers identify genes in fruitflies that may shed light on human cancer spread

...urned on in so-called border cells of the fruitfly ovary that migrate during normal development. Two main t...." Although border cell migration in the fruitfly ovary may seem a far stretch for studying human cancer metastasis, the genes uncovered in this study share...

One-third of adults with diabetes still don't know they have it

...baby weighing more than 9 pounds have polycystic ovary syndrome, a metabolic disorder that affects the female reproductive system have acanthosis nigricans (dark, thickened skin around neck or armpits) have a history of disease of the blood vessels to the heart, brain, or legs have had IFG or IGT on...

Study finds how organs monitor themselves during early development

...nd beyond understanding of how a gonad such as the ovary develops," explains Dr. Ruth Lehmann, Ph.D., Juliu...., decoded the process in the developing fruit fly ovary that allows the ovary to monitor the number of germ cells it contains and to correct that number if ...

Even when faint, ovary scent draws sperm cells

...m cells to follow the weakest of scents. Even when ovary extracts were diluted 100,000 times, some sperm cells still found their mark. A video demonstrating sperm chemotaxis (oriented motion in response to a chemical gradient) can be downloaded at http://www.iuinfo.indiana.edu/bem/media_relations/movie.c...

New technology addresses female fertility preservation

...ervation of fertility." The technology mimics the ovary and its environment. Follicles (each follicle has one egg) from mice were grown in vitro until fully matured by providing the follicles and eggs with the necessary hormones for development while maintaining their normal architecture. The eggs were th...

Major cancer study aims to identify protein markers for early-stage disease

...ntigen 125 (CA-125) suggest possible cancer of the ovary or other organs. However, both tests have "false negatives" or "false positives," making them unreliable. If mass spectrometry can be refined and standardized, scientists say, it could revolutionize the detection of cancer and lead to earlier interv...

Researchers discover that sheep need retroviruses for reproduction

...e retroviruses infected the germline (cells of the ovary and testis that have genetic material that are passed to their offspring) of the host, which is then inherited by their children. These retroviruses, known as endogenous retroviruses, are present in the genome of all mammals, including humans. Cons...

The power of one: A simpler, cheaper method for cell fusion

...d the efficacy of his device using Chinese hamster ovary cells, which were chemically engineered to link prior to fusion. He said his technology could be developed to fuse different types of cells in the future. Purdue's Research Foundation provided funding for Lu's research, and Lu has submitted a U.S....

Stem cells engage in dialogue with the cells that regulate their futures

...resence of a renewable source of stem cells in the ovary of the adult fruit fly. Inside the fruit fly ovary are structures called germarium which contain tiny cradles made of cap cells that nurture stem cells...

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(Date:4/17/2014)... that fish consumption advisories for expecting mothers are ... like persistent organic pollutants (POPs). , The ... University of Toronto Scarborough PhD student Matt Binnington ... levels of environmental contamination, a mother,s compliance with ... body influenced exposure in her children. , Their ...
(Date:4/17/2014)... engineer has developed a patented technique that improves ... The same technique could help police during drug ... Kay L. Theede chair in engineering and department ... research team have created a template-based system that ... The distance detection method called stand-off bomb ...
(Date:4/17/2014)... and pathogens that devastate honeybees in Europe, Asia and ... do not appear to be impacting native honeybee populations ... researchers., The invasive pests include including Nosema microsporidia ... honeybees appear to be resilient to these invasive pests, ... control pests in Europe, Asia and the United States ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2Patented research remotely detects nitrogen-rich explosives 2East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
(Date:4/17/2014)... about one in five infants in the United States ... first several months after birth. Research into probiotic use ... the April 1, 2014 issue of the British ... study, "Probiotics and Infant Colic," concluding that the use ... colic did not reduce crying or fussing in ...
(Date:4/17/2014)... An international team led by researchers at UC ... which plays a key role in cell division, also ... is the first time the complex has been shown ... cyclin B1/Cdk1 an excellent target to control cellular energy ... research was published online today in the journal ...
(Date:4/17/2014)... ribbon representing a disease. A pink ribbon is well known ... think of with lung cancer?, Although white has been identified ... black may be the only one they think fits., A ... smokers between the ages of 51 to 79 years old, ... these patients, the emotional toll it can have and how ...
(Date:4/17/2014)... has found that India,s shocking rates of suicide are ... are clinging to tiny smallholdings less than one ... as cotton and coffee, that are highly susceptible to ... of previous case studies that point to a crisis ... ,liberalisation, of the nation,s economy during the 90s. Researchers ...
(Date:4/17/2014)... status as the leading weapon against the deadly disease ... new research indicating it simply needs to be administered ... the cheap anti-malarial drug chloroquine in treating and preventing ... than half a million people each year around the ... resistance to chloroquine, but research carried out at the ...
Breaking Medicine News(10 mins):Health News:New study says probiotic use for infant colic is not effective in reducing symptoms 2Health News:Dual role: Key cell division proteins also power up mitochondria 2Health News:Unraveling the 'black ribbon' around lung cancer 2Health News:New evidence of suicide epidemic among India's 'marginalized' farmers 2Health News:New evidence of suicide epidemic among India's 'marginalized' farmers 3Health News:Scientists find new way to fight malaria drug resistance 2
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