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Should all babies have their genome sequenced at birth?

Experts debate whether newborn genome sequencing should be routine, with some arguing it can save lives and be cost-effective. A phased rollout is advocated, with genomic information disclosed sequentially at appropriate ages. The rollout requires data quality improvement and informed consent.

SourceBMJ Group·JournalThe BMJ·DateNov 17, 2021

Rice strategy refines genetic base editors

Rice scientists developed a comprehensive approach to building better base editors, molecular machines that target and fix faulty DNA at single-base resolution. Their new strategy combines theory and experimentation to pinpoint binding energies and characterize deaminase interactions with ssDNA.

SourceRice University·JournalNature Communications·TypeExperimental study·DateNov 11, 2021

Whole genome sequencing improves diagnosis of rare diseases and shortens diagnostic journeys for patients, according to world first study

A world-first study published in the New England Journal of Medicine found that whole genome sequencing can uncover new diagnoses for people with rare diseases. The pilot study analyzed 4,660 individuals and found a new diagnosis for 25% of participants, including 14% not detectable by other conventional methods.

SourceQueen Mary University of London·JournalNew England Journal of Medicine·TypeRandomized controlled/clinical trial·DateNov 10, 2021

Retinoid therapy may improve vision in people with rare genetic disorder, according to study in mice from University of Maryland School of Medicine and NIH

Researchers from the University of Maryland School of Medicine and NIH found that retinoid therapy improved vision in mice with Usher syndrome, a rare genetic disorder. The study identified key functions of protocadherin-15, which helps recycle molecules essential for eye tissue.

SourceUniversity of Maryland School of Medicine·JournaleLife·TypeExperimental study·DateNov 9, 2021

How to turn specific genes on and off

Researchers at McGill University developed a new technique to manipulate DNA methylation levels at specific genes using CRISPR/Cas9 technology. This approach enables targeted demethylation of genes associated with diseases, such as insulin gene dysregulation in diabetes.

SourceMcGill University·JournalNature Communications·DateNov 9, 2021

Multiplex network improves diagnosis and analysis of rare diseases

A new multiplex network developed by Jörg Menche's research group maps all genes and their interactions, improving the identification of genetic defects and assessing their consequences. The network increases the probability of finding the crucial gene aberration threefold compared to separate networks.

scAAVengr hunt for viruses to cure blindness

A novel computational platform called scAAVengr uses single-cell RNA sequencing to quickly evaluate viral vectors for delivering gene therapies to the retina with maximum efficiency and precision. This approach saves time and resources by identifying suitable candidates that can deliver therapy to affected parts of the retina accurately.

SourceUniversity of Pittsburgh·JournaleLife·DateOct 19, 2021

Penn study suggests genetic disease CDKL5 deficiency disorder could be treatable after childhood

A new study from the University of Pennsylvania School of Medicine found that the gene CDKL5 plays an essential role in the brain throughout life, even after childhood. Researchers discovered that reinstating CDKL5 activity in young adult mice with a genetic deficiency led to significant improvements in neurological problems.

Artificial intelligence-based technology quickly identifies genetic causes of serious disease

A new AI-powered algorithm, GEM, has been developed to quickly identify genetic causes of serious disease in newborns. The technology leverages machine learning and natural language processing to analyze vast amounts of genomic data and clinical records, achieving an accuracy rate of 92% compared to existing tools.

SourceUniversity of Utah Health·JournalGenomic Medicine·TypeData/statistical analysis·DateOct 13, 2021

Darwin’s short-beak enigma solved

A study by University of Utah biologists discovered a mutation in the ROR2 gene is linked to short beak length in domestic pigeons. This mutation also underlies the human disorder Robinow syndrome, which shares striking facial features with the pigeon phenotype.

SourceUniversity of Utah·JournalCurrent Biology·TypeExperimental study·DateSep 21, 2021

A genetic brain disease reversed after birth

Researchers at RIKEN Cluster for Pioneering Research have found that Kleefstra syndrome, a genetic disorder leading to intellectual disability, can be reversed after birth. Postnatal treatment with artificially induced GLP production resulted in improved brain and behavioral symptoms.

SourceRIKEN·JournaliScience·DateSep 20, 2021

Disease genes help developing brains

Scientists have identified two new candidate genes, ULK4 and PTTG1, that positively influence the development of an embryo by restoring a strong Sonic Hedgehog signaling pathway. This finding provides new insights into the causes of holoprosencephaly, a congenital malformation affecting around one to four in every 1,000 unborns.

Deleting DNA to treat mitochondrial diseases

Scientists at Kyoto University developed a chemical compound that can tag and remove mutant DNA sequences from mitochondria, potentially treating mitochondrial diseases. The approach overcomes existing problems with genetic material injection and antioxidant drugs.

SourceKyoto University·JournalCell Chemical Biology·DateAug 26, 2021

Brain organoids mimic head size changes associated with type of autism

Researchers have created brain organoids from people with 16p11.2 genomic variations, which exhibit differences in brain size seen in individuals with autism spectrum disorder. The study revealed new information about molecular mechanisms that malfunction when this region is disrupted, providing opportunities for therapeutic intervention.

SourceUniversity of California - San Diego·JournalMolecular Psychiatry·DateAug 25, 2021

Mutated enzyme weakens connection between brain cells that help control movement

Researchers found a mutation in ELOVL4 enzyme impairs communication between neurons, leading to impaired motor control and coordination. The study provides new insights into the essential role of ELOVL4 in motor function and synaptic plasticity, suggesting potential therapeutic strategies for patients with spinocerebellar ataxia.

SourceMedical College of Georgia at Augusta University·JournalMolecular Neurobiology·DateAug 17, 2021

New podcast to focus on life-saving newborn screening research and practice: NBSTRN launches newborn screening SPOTlight

The Newborn Screening Translational Research Network (NBSTRN) has launched a new podcast called Newborn Screening SPOTlight, which shares stories of how newborn screening research saves lives every day. The podcast is co-hosted by Drs. Amy Brower and Kee Chan and features interviews with experts in the field.

SUV39H2: A direct genetic link to autism spectrum disorders

A human variant of the SUV39H2 gene has been linked to autism spectrum disorders, causing cognitive inflexibility in mice and misregulated expression of genes related to brain development. The study suggests that histone methylation plays a crucial role in regulating gene expression, and its absence may lead to serious problems.

SourceRIKEN·JournalMolecular Psychiatry·DateJul 16, 2021

Cohesin opens up for cell division

A study by Nagoya University researchers reveals that cohesin's ring needs to open for certain processes, like DNA replication and chromosome segregation. This opening facilitates the progressive replication of the DNA double helix and allows DNA looping, crucial for regulating gene expression.

SourceNagoya University·JournalCell Reports·DateJun 22, 2021

Genetic cause of neurodevelopmental disorder discovered

A team of researchers at the University of Maryland School of Medicine has identified a new gene, AP1G1, that is associated with neurodevelopmental disorders and intellectual disabilities. The gene plays a crucial role in transporting essential materials within brain cells, and its disruption can lead to significant developmental delays.

SourceUniversity of Maryland School of Medicine·JournalAmerican Journal of Human Genetics·DateJun 21, 2021

UIC research identifies potential pathways to treating alcohol use disorder, depression

Researchers at UIC's Center for Alcohol Research in Epigenetics have discovered a key regulator of gene expression and anhedonia during alcohol withdrawal. Blocking STAT3 activity alleviates withdrawal-induced depression in rats, and similar results are seen in human postmortem hippocampus samples of individuals with alcohol use disorder.

SourceUniversity of Illinois Chicago·JournalTranslational Psychiatry·DateJun 14, 2021