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Addressing a complex world of pain in a single gene difference

A single letter difference in a gene leads to sickle cell disease affecting 20 million worldwide, with varying life expectancy depending on social and environmental factors. A new review calls for integrative studies to better understand the disease globally and develop locally-appropriate interventions.

SourceWiley·JournalAdvanced Genetics·DateMar 1, 2021

Wake-up call for neural stem cells

Researchers have identified a brain enzyme that activates dormant neural stem cells, enabling them to proliferate and generate new neurons. The study found that the enzyme Pr-set7 plays a crucial role in maintaining genome stability and regulating cell cycle, leading to reactivation of neural stem cells.

SourceDuke-NUS Medical School·JournalEMBO Reports·DateFeb 11, 2021

Genetic analysis of symptoms yields new insights into PTSD

A recent study analyzing over 250,000 genomes identifies genetic similarities between PTSD and other mental health disorders, including anxiety and bipolar disorder. The research also suggests that certain medications used for other conditions may be effective in treating individual symptoms of multiple disorders.

SourceYale University·JournalNature Genetics·DateJan 28, 2021

Primary care physicians account for a minority of spending on low-value care

Research suggests that primary care physicians play a smaller role in high-value spending than previously thought, with most PCPs contributing less than 9% of low-value spending per patient. Genetic testing is also limited in predicting disease in healthy individuals, highlighting the need for caution in its use as a preventive tool.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJan 18, 2021

Common brain malformation traced to its genetic roots

Research identifies two causal genes, CHD3 and CHD8, contributing to Chiari 1 malformation. Children with unusually large heads are four times more likely to be diagnosed with the condition. The study's findings may lead to new ways to identify people at risk before serious symptoms arise.

SourceWashU Medicine·JournalAmerican Journal of Human Genetics·DateDec 28, 2020

NIH-funded study sheds light on abnormal neural function in rare genetic disorder

A NIH-funded study identified neuronal abnormalities in cortical cells from individuals with 22q11.2 deletion syndrome, a genetic disorder associated with mental illnesses and developmental delays. The study suggests that overexpression of the DGCR8 gene and exposure to certain antipsychotic drugs can restore normal cellular functioning.

SourceNIH/National Institute of Mental Health·JournalNature Medicine·DateSep 28, 2020

Progress toward a treatment for Krabbe disease

A study by University of Pennsylvania researchers describes an effective gene therapy for Krabbe disease in dogs, which has shown promising results with no significant symptoms after four years. The treatment approach, using the AAV9 vector, has also been found to positively affect both central and peripheral nervous systems.

SourceUniversity of Pennsylvania·JournalJournal of Clinical Investigation·DateAug 26, 2020

Your in-laws' history of drinking problems could lead to alcohol issues of your own

A recent study published in Psychological Science found that marriage to a spouse with a history of parental alcohol misuse increases the likelihood of developing alcohol use disorder. The research suggests that it's not the spouse's genetic makeup but rather their upbringing by an AUD-affected parent that influences this risk.

SourceAssociation for Psychological Science·JournalPsychological Science·DateAug 20, 2020

RNA as a future cure for hereditary diseases

Researchers at ETH Zurich have developed RNA molecules that can compensate for gene mutations in bone marrow cells, a potential breakthrough for treating rare hereditary diseases. The molecules bind to the body's own RNA and restore ferrochelatase enzyme production, which is deficient in patients with erythropoietic protoporphyria.

SourceETH Zurich·JournalNucleic Acids Research·DateAug 18, 2020

Epigenetic risk for PTSD in trauma survivors

Researchers studied epigenetic modifications associated with posttraumatic stress disorder (PTSD) in trauma survivors, finding a link to the gene NTRK2 and reduced PTSD risk. The study revealed that epigenetic modification of NTRK2 was predictive of PTSD risk, but its relationship with PTSD is complex and influenced by multiple factors.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateAug 17, 2020