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Cocaine use disorder alters gene networks of neuroinflammation and neurotransmission in humans

Research found that cocaine use disorder causes significant gene expression changes in brain regions associated with reward and habit formation, contributing to persistent behavioral abnormalities. The study also identified overlapping molecular changes between cocaine and opioid use disorders, offering potential for targeted treatments.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience Advances·TypeExperimental study·DateFeb 10, 2023

Pusan National University researchers uncover novel gene that regulates leukemia development and progression

Pusan National University researchers have identified a novel gene, SURF4, that regulates cell death and differentiation in acute myeloid leukemia (AML). The study found that suppressing SURF4 expression increases cell differentiation, cell death, and accumulation of ROS, leading to arrested tumor growth in mice.

SourcePusan National University·JournalCancer Communications·TypeExperimental study·DateJan 31, 2023

Warmer climate may drive fungi to be more dangerous to our health

A new study finds that warmer temperatures cause a pathogenic fungus to experience adaptive responses, leading to increased disease-causing potential. The research, led by Asiya Gusa at Duke University, suggests that rising global temperatures may contribute to the evolution of more virulent fungal pathogens.

SourceDuke University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 30, 2023

Ben-Gurion University researcher and international colleagues hot on the trail of a key component of aging

Researchers found that SIRT6 maintains mitochondrial function through transcription regulation of mitochondrial genes. Without SIRT6, mitochondrial gene expression is down-regulated, leading to increased ROS production and impaired ATP generation, similar to changes observed in aging and neurodegenerative diseases.

SourceBen-Gurion University of the Negev·JournalCell Death and Disease·TypeExperimental study·DateJan 23, 2023

Weiss-Kruszka syndrome and the failure to establish neuronal identity

Researchers identified the molecular mechanism underlying Weiss-Kruszka syndrome, a rare neurodevelopmental disorder characterized by craniofacial anomalies and autistic features. The study reveals that the ZFP462 gene mutation leads to a failure to safeguard neural lineage specification during early embryonic development.

SourceIMBA- Institute of Molecular Biotechnology of the Austrian Academy of Sciences·JournalNature Cell Biology·TypeExperimental study·DateJan 5, 2023

Cell quality control

In a groundbreaking study, researchers at Eötvös Loránd University have found that gland cells in Drosophila melanogaster can remove defective secretory particles as early as the secretion process begins. This discovery sheds new light on crinophagy, a previously understudied process crucial for maintaining cellular quality and function.

SourceEötvös Loránd University·JournalTraffic·DateDec 15, 2022

HKUMed scientists lead discovery of two master genes critical for hearing Provide a guide for diagnosis of deafness and balance problems

Researchers discovered the underlying cause of deafness caused by swelling in the inner ear chambers. The study identified two master genes, SOX9 and SOX10, controlling hearing function and providing a new resource for diagnosis and treatment of deafness and balance problems.

SourceThe University of Hong Kong·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 14, 2022

Immune system of modern Papuans shaped by DNA from ancient Denisovans

A recent study found that Denisovan DNA sequences near immune-related genes in modern Papuans regulate their activity, affecting how people respond to infections. The research suggests that Denisovan DNA contributed to the adaptation of early modern humans living in New Guinea and nearby islands.

SourcePLOS·JournalPLOS ONE·TypeObservational study·DateDec 8, 2022

DNA sequence enhances understanding origins of jaws

Researchers at Uppsala University have discovered a crucial DNA sequence in jawed vertebrates that plays a major role in shaping the joint surfaces during embryonic development. This finding has significant implications for understanding the evolution of vertebrate jaws, which is believed to have occurred around 423 million years ago.

SourceUppsala University·JournaleLife·TypeExperimental study·DateNov 25, 2022

‘Primordial super-enhancers’ provide early snapshot of the mechanisms that allowed for multicellularity

Researchers at the University of Chicago discovered that yeast cells use membrane-less compartments to drive high-level gene expression in response to environmental stress, mirroring a mechanism used by mammalian cells. This finding has implications for understanding human diseases such as cancer and neurodegeneration.

SourceUniversity of Chicago Medical Center·JournalMolecular Cell·DateNov 22, 2022

Oncotarget | Predictive molecular biomarkers for determining neoadjuvant chemosensitivity in muscle invasive bladder cancer

A study using mRNA and miRNA expression profiles identified molecular signatures that can differentiate muscle invasive bladder cancer patients who respond to neoadjuvant chemotherapy from those who do not. The research found distinct gene pathways and subtypes associated with response, which may lead to more effective treatment delivery.

SourceImpact Journals LLC·JournalOncotarget·TypeData/statistical analysis·DateNov 8, 2022

On the trail of missing genes and cancer clues

Researchers at La Jolla Institute for Immunology discovered a direct link between TET protein loss of function and missing genes in embryonic stem cells, which can lead to cancer growth. The study found that TET proteins are crucial for maintaining genome stability, and their loss results in aneuploidies, a common feature of cancer cells.

SourceLa Jolla Institute for Immunology·JournalNature Communications·TypeExperimental study·DateOct 27, 2022

New gene editing strategy could lead to treatments for people born with inherited diseases of the immune system

Researchers have developed a pioneering gene editing strategy that can repair faulty genes in immune cells, offering new hope for patients with conditions like CTLA-4 insufficiency. The technique uses CRISPR/Cas9 to target and correct the faulty gene, preserving important regulatory mechanisms.

SourceUniversity College London·JournalScience Translational Medicine·TypeExperimental study·DateOct 26, 2022

3D map reveals DNA organization within human retina cells

NIH scientists mapped the organization of human retinal cell chromatin, revealing insights into regulation of gene expression and retinal function. The study identified distinct patterns of interaction at retinal genes suggesting how chromatin's 3D organization plays a crucial role in tissue-specific gene regulation.

SourceNIH/National Eye Institute·JournalNature Communications·TypeData/statistical analysis·DateOct 7, 2022

Machine learning creates opportunity for new personalized therapies

Researchers developed a computational platform to identify metabolic vulnerabilities in ovarian cancer genes, suggesting opportunities for targeted therapies. The study found that certain genetic alterations can create vulnerabilities in cancer cell metabolism, which can be exploited to selectively kill cancer cells.

SourceMichigan Medicine - University of Michigan·JournalNature Metabolism·TypeExperimental study·DateSep 28, 2022

A new understanding of the neurobiology of impulsivity

A new genetically based score developed by McGill University researchers can identify children at high risk for impulsive behavior with a high degree of accuracy. The score was created by analyzing the co-expression of genes in key brain regions, providing a novel understanding of the neurobiology of impulsivity.

SourceMcGill University·JournalMolecular Psychiatry·DateSep 22, 2022

Rare human gene variant in ADHD, autism exposes fundamental sex differences

A new study reveals key differences in dopamine disposal machinery between male and female mice with a rare human genetic variant found in boys with ADHD or ASD. Females exhibit unique behavioral changes, such as increased anxiety and novelty recognition issues, while males display reduced social behavior and perseverative traits.

SourceFlorida Atlantic University·JournalMolecular Psychiatry·TypeExperimental study·DateSep 21, 2022

​​​​​​​Researchers gain insights into the genetic and molecular machinery that predisposes individuals to Alzheimer's disease

A team of researchers from The Mount Sinai Hospital has made a groundbreaking discovery into the genetic and molecular mechanisms that predispose individuals to Alzheimer's disease. They identified 21 candidate risk genes, including SPI1, which regulates microglia and AD risk.

How can a protein help us remember?

Researchers have discovered the Apterous protein's crucial role in retaining memories through its interaction with the Chi cofactor and regulation of neurotransmitters. In fruit flies, Ap plays a double role in long-term memory consolidation, highlighting potential new treatment approaches for memory-related disorders.

SourceTokyo Metropolitan University·JournalPLOS Biology·DateDec 11, 2021