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Researchers discover protein that controls bone growth

A research team has uncovered the molecular mechanism by which osteocrin controls bone growth, a discovery that may have important implications for people suffering from bone diseases affecting skeletal growth. Osteocrin was found to locally control the bone's supply of a hormone known as CNP, regulating bone growth.

SourceMcGill University·JournalJournal of Biological Chemistry·DateDec 19, 2007

Fundamental discovery by Einstein researchers reveals how fat is stored in cells

Scientists at Einstein College of Medicine identified two genes crucial for packaging fat into lipid droplets. Overexpressing these genes led to a significant increase in lipid droplet formation, while suppressing one of the genes resulted in a drastic reduction. This discovery could lead to new strategies for treating obesity and rela...

SourceAlbert Einstein College of Medicine·JournalProceedings of the National Academy of Sciences·DateDec 17, 2007

Evolutionary comparison finds new human genes

Researchers at Cornell University have identified over 300 new human genes using a comparative approach to the genome. These newly discovered genes are involved in various biological processes, including motor activity, cell adhesion, and central nervous system development.

SourceCornell University·JournalGenome Research·DateNov 20, 2007

ClC-1 helps mice get a move on

Researchers developed a morpholino antisense oligonucleotide to correct the abnormal inclusion of exon 7a in ClC-1 mRNA, restoring chloride channel function and eliminating myotonia in mice with DM1. This approach may potentially treat myotonia in individuals with DM1.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 15, 2007

Factor key to severity of community-associated methicillin-resistant staph infections identified

Scientists at NIAID identified a key factor contributing to the severity of community-associated methicillin-resistant staph infections. Novel proteins in drug-resistant strains of S. aureus attract and destroy protective white blood cells, ensuring the bacterium survives and causes severe disease.

The benefits of 80 million years without sex

Researchers find that bdelloid rotifers, an asexual organism, have evolved different gene functions to protect themselves during dehydration. This discovery provides insight into the benefits of asexuality and challenges the assumption that sexual reproduction is always necessary for survival.

SourceUniversity of Cambridge·JournalScience·DateOct 11, 2007

Story ideas from Molecular & Cellular Proteomics

Researchers have identified new proteins in amniotic fluid that could improve pregnancy marker development. Additionally, a study on the Wlds gene has provided insights into preventing neuronal communication deterioration in Alzheimer's disease. A comprehensive analysis of proteins in human Jurkat T cells has also been conducted.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalMolecular & Cellular Proteomics·DateAug 22, 2007

Research links genetic mutations to lupus

A recent study published in Nature Genetics has found a genetic mutation linked to systemic lupus erythematosus, a complex autoimmune disease. The discovery identifies variations of the TREX1 gene as a risk factor for developing lupus, shedding new light on its causes and potentially paving the way for new treatments.

SourceAtrium Health Wake Forest Baptist·JournalNature Genetics·DateJul 29, 2007

A first-principles model of early evolution

A new model of early evolution directly connects population fitness to protein properties, resolving a key molecular evolution mystery. The study finds that survival depends on the stability of the least stable proteins, leading to an uneven distribution of fold and gene family sizes.

SourcePLOS·JournalPLOS Computational Biology·DateJul 10, 2007

Clocking in and out of gene expression

Researchers discovered that genes have internal clocks regulated by coactivators, controlling protein production and preventing cancerous growth. The coactivator's clock is set off through the addition of phosphate and ubiquitin molecules, with a fixed lifespan to prevent continuous activation.

Lack of a protein in lung tumors may increase risk of death

A recent study by Ohio State University researchers has identified a link between the absence of the Olig1 protein in lung tumors and poor survival rates among patients with non-small cell lung cancer. The findings suggest that patients with low levels of the protein may benefit from more aggressive therapy after surgery, potentially i...

SourceOhio State University·JournalPLOS Medicine·DateMar 26, 2007

Evolutionary influences on proteins

Researchers found that splice-enhancer domains, which code for specific amino acids, influence protein evolution and are subject to selective pressure. Smaller exons near intron-exon boundaries also evolve more slowly.

SourcePLOS·JournalPLOS Biology·DateFeb 5, 2007

How fish conquered the ocean

Scientists discovered that bony fish duplicated their yolk-producing genes, allowing eggs to fill with water and float. This post-R3 lineage-specific gene duplication enabled hydration of maturing eggs, driving the evolution and success of marine teleosts in the oceanic environment.

SourcePLOS·JournalPLOS ONE·DateJan 23, 2007

Tracing the pathways of neurofibromatosis

A recent study by researchers at Rice University has identified a key role for the protein Ras in promoting nerve cell growth and tumorigenesis in individuals with neurofibromatosis. The study found that defects in the Nf1 gene disrupt the normal regulatory mechanism, leading to an overactive signaling pathway.

PNAS study reveals why organs fail following massive trauma

A nationwide team of researchers has discovered several new biochemical pathways that play a central role in post-trauma immune system and organ failure. The study identified the genetic and protein changes in specific immune cells that determine whether trauma is fatal, providing potential insights into many diseases involving human i...

SourceUniversity of Rochester Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 17, 2006

A ruler of gold and DNA

A team of scientists created a molecular ruler using gold nanoparticles and DNA to measure protein-DNA interactions at high resolution. This tool promises to accelerate research into genetic information processing by detecting initial protein-DNA binding interactions.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Nanotechnology·DateOct 11, 2006