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Study examines genetic risk factors for Alzheimer's disease

Researchers have identified several genes involved in Alzheimer's disease development, with the GALP gene showing potential in reducing brain cell tangles, a hallmark of the disease. The study, which tested over 17,000 gene variants in 4,000 volunteers, aims to provide a knowledge base for new treatments and diagnostic tests.

SourceCardiff University·JournalHuman Molecular Genetics·DateMar 5, 2007

Scientists identify gene that may indicate predisposition to schizophrenia

A study published in The American Journal of Human Genetics identifies the chitinase 3-like 1 gene as a potential risk factor for schizophrenia. Genetic variations in this gene were found to be associated with schizophrenia, suggesting that genes involved in biological response to adverse conditions may play a role in predisposition.

SourceUniversity of Chicago Press Journals·JournalAmerican Journal of Human Genetics·DateJan 24, 2007

Found -- the apple gene for red

Scientists identify the gene responsible for apple skin's rosy red hue, which is also an antioxidant. This discovery could lead to breeding new apple varieties with improved fruit color and potential health benefits.

SourceCSIRO Australia·JournalPLANT PHYSIOLOGY·DateNov 30, 2006

Unraveling where chimp and human brains diverge

UCLA scientists identified gene networks that correspond to specific brain regions in humans and chimps. The study found significant differences in the cerebral cortex region, where human-specific genes show changes at the DNA level. These findings support the theory that variations in DNA sequence contributed to human evolution.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateNov 13, 2006

How purple corn and RNA break genetic laws

Scientists have discovered that an enzyme called RNA-dependent RNA polymerase is needed for paramutation, a phenomenon where one version of a gene can order another to act differently. This finding has significant implications for breeding better crop plants and unraveling complex genetic diseases, including some human health conditions.

SourceUniversity of Arizona·JournalNature·DateJul 19, 2006

New genes implicated in rheumatoid arthritis

Researchers have uncovered three disease-relevant genes in synovial tissue from identical twins with RA, shedding light on the genetic components of this inflammatory disease. The study identifies laeverin, 11ß-HSD2, and Cyr61 as key enzymes linked to protein degradation, inflammation, and new blood vessel formation.

SourceWiley·JournalArthritis & Rheumatism·DateJun 27, 2006

Study shows gene candidates for predisposition

Researchers have identified 20 candidate genes that regulate alcohol preference, shedding light on the genetic factors underlying excessive drinking. The study suggests that differences in brain function and homeostasis may contribute to an individual's reaction to alcohol.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateApr 18, 2006

Junk DNA may not be so junky after all

Scientists have identified human enhancers able to control expression consistent with the zebrafish ret gene, shedding light on Hirschsprung disease and multiple endocrine neoplasia. The new system uses zebrafish to test mammalian DNA and is a significant advance over current methods.

SourceJohns Hopkins Medicine·JournalScience·DateMar 23, 2006

'Looking' at Eyeless from two directions

A team of scientists has identified 21 key genes that are targets of the Eyeless protein, which plays a crucial role in eye development. This breakthrough could lead to new insights into how eyes develop in fruit flies and humans, potentially shedding light on diseases related to vision.

SourceBaylor College of Medicine·JournalGenome Research·DateMar 8, 2006

Three new species of lemurs identified

Researchers have identified three new species of lemurs, expanding our knowledge of these endangered animals. The study, published in BMC Evolutionary Biology, uses genetic analysis to reveal distinct species characteristics, shedding light on the importance of conservation programs for lemurs native to Madagascar.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateFeb 22, 2006

Dyslexia: risk gene is identified

A German-Swedish team has identified a single gene, DCDC2, as an important factor in the emergence of dyslexia. The gene appears to affect the migration of nerve cells in the developing brain, with frequent changes found among dyslexics.

SourceUniversity of Bonn·JournalAmerican Journal of Human Genetics·DateNov 3, 2005