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Tag: "two" at biology news

A gene's first 'kiss' sets off that affair known as puberty

... triggered by the brain's own version of "It takes two to tango," whereby a signal literally gets turned on by a molecule that is produced by a gene aptly named KiSS-1. The couple ?a biochemical equivalent to Adam and Eve ?makes its sudden appearance in a region of the brain called the hypothalamus just...

DNA Molecules Used To Assemble Nanoparticles

...dent Youngseon Choi built nanoparticle clusters of two different functional dendrimers, one designed for ...-coding DNA synthesized by Choi. In a solution of two different kinds of single dendrimers, these dangling lengths of DNA, typically 34-66 bases long, fou...

New push for public health, AIDS spending at African Union summit

...US15 billion that President George W Bush promised two years ago for the fight against AIDS. ...

Association of herpesvirus with lung disorder questioned

...the earlier study, Katano and colleagues performed two types of tests in the tissue samples, one to detec...tigen or the DNA in any of the 22 samples from the two groups with some form of pulmonary hypertension, whereas the antigen was detected in the control gro...

Man and mouse share genome structures

...esearchers analyzed the chromatin structure of the two shortest human chromosomes, numbers 21 and 22, containing about two percent of the human genome. They also sampled additional regions in both the human and mouse genome...

Jump-starting T Cells In Skin Cancer

...unclear. Pierre Coulie and colleagues now show, in two articles in the January 17 issue of the Journal of Experimental Medicine, that these vaccines work by increasing the number of immune cells called killer T cells that can attack the tumor. In an unexpected finding, however, they discovered that that ...

Spleen may be source of versatile stem cells

...egrated health care delivery system comprising the two academicmedical centers, specialty and community hospitals, a network ofphysician groups, and nonacute and home health services....

Genes In The Interferon System Important In Systemic Lupus Erythematosus

... to the interferon system, we were able toidentify two genes with such clear connection to SLE," says Pro...y, comprising nearly 2,000 individuals, shows that two genes inthe interferon system are very strongly associated with the diseaseSLE. One of the genes cod...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

...logical manifestations of hydrothermal activity at two sites on the sea floor to the west of Central Amer...logical manifestations of hydrothermal activity at two sites on young abyssal hills flanking the East Pacific Rise, a fast-spreading portion of the global ...

Researchers discover way to make cells in the eye sensitive to light

...e textbook view of theeye is that it contains only two light sensing systems, the rods andcones. However, over the last few years it has become increasinglyaccepted that we have a third system, which uses melanopsin, that haslain undetected during decades of vigorous scientific investigation."Professor H...

Enzyme, lost in most mammals, is shown to protect against UV-induced skin cancer

...t of skin cancer.Thus far it was not clear how the two major types of UV-induced DNAlesions ?cyclobutane ...ion. Identifying the relative contributions of the two types ofdamage to tumor formation is critical for the development of therapiesthat could help preven...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

...printing is common." The researchers' mice mirror two situations in people because the double dose of IGF2 was accomplished in two ways. One set of mice, obtained from Shirley Tilghman at Princeton, have a double dose of IGF2 becau...

Columbia research lifts major hurdle to gene therapy for cancer

...e virus's selectivity for cancer cells is based on two moleculescalled PEA-3 and AP-1 that, the researchers found, are usually abundantinside cancer cells. Both of the molecules flip a switch (called PEG)that turns on the production of a cancer-inhibiting protein uniquely intumor cells.The researchers sa...

Novel technology detects human DNA mutations

...method sandwiches a target DNA SNP segment between two oligonucleotide sequences to greatly increase detection specificity and sensitivity. One segment identifies any mutations in the DNA and the probe, a highly sensitive gold nanoparticle, creates a strong signal accurately indicating the presence of a ...

Growth in the sea comes down to a struggle for iron

...nd Antarctica. Joining him on the July voyage were two UMaine graduate students -- Eric Roy and Lisa Pick...atch changed quickly and constantly, breaking into two patches and streaming out into a long, narrow strip. The major night-time task was to steam in criss...

New, automated tool successfully classifies and relates proteins in unprecedented way

...y andwithout error," Murphy said.Murphy's tool has two key components. One is a set of subcellularlocation features (SLFs) that describe a protein's location in a cellimage. SLFs measure both simple and complex aspects of proteins, suchas shape, texture, edge qualities and contrast against backgroundfeat...

New binding target for oncogenic viral protein

... 40 produces the Large T antigen which inactivates two of the cell's most important cancer-preventing proteins, p53 and pRb. In a study published in the Journal of Biological Chemistry, researchers at the Fred Hutchinson Cancer Research Center report the discovery of an additional target for T antigen--a...

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

...lasts three weeks. They separated the mothers into two groups. The control group ate as much chow as they...er group also was fully nourished during the first two weeks but undernourished during the third week, restricted to only half the amount. It had a dramati...

Fox Chase Cancer Center scientists identify immune-system mutation

...ves key branch points at which cells choose one of two different pathways, going on to become helper cells or killer cells," Kappes said. His goal is to understand how T cells specialize to do different jobs. Commitment to the helper or killer lineages correlates precisely with the restriction of the T-...

Termites feed through good vibrations

...ot interested in random noise. These results show two responses by the termites: one to block size and a second to signal source. The artificial signal mimicked the characteristic frequency of the wooden block, so the termites were tricked into believing that a small block with the artificial signal was...

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Breaking Biology News(10 mins):Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3NEC Security Competitive Profile 2015 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 3American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 5American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 6American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 7American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 8
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