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Brain images just got 64 million times sharper

Researchers at Duke University have successfully improved the resolution of Magnetic Resonance Imaging (MRI), capturing images of a mouse brain with unprecedented sharpness. The breakthrough allows for the visualization of microscopic details within the brain, enabling new insights into neurodegenerative diseases such as Alzheimer's an...

SourceDuke University·JournalProceedings of the National Academy of Sciences·TypeImaging analysis·DateApr 17, 2023

Resident T-cells key to salmonella immunity

Researchers at UC Davis School of Veterinary Medicine discovered that tissue resident memory cells are crucial for inducing a powerful immune response against Salmonella. Molecules like interleukin-1 and 2 enhance the formation of these cells in the liver, providing a rapid-response force.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateApr 17, 2023

Researchers discover how some brain cells transfer material to neurons in mice

Researchers at UC Davis discovered how oligodendrocyte-lineage cells transfer cell material to neurons in the mouse brain, providing a new mechanism for understanding brain maturation and finding treatments for neurological conditions. This discovery opens new possibilities for treating neurodegenerative diseases like Alzheimer's and P...

SourceUniversity of California - Davis Health·JournalJournal of Experimental Medicine·DateApr 17, 2023

Study unravels pathophysiological role of Dectin-1 in promoting colorectal cancer

A study led by Tokyo University of Science researchers identified Dectin-1's role in promoting colorectal cancer by enhancing PGE2 production and suppressing IL-22BP expression. The study used mouse models and clinical samples to validate the findings, which have immediate clinical implications for CRC patients.

SourceTokyo University of Science·JournalNature Communications·TypeExperimental study·DateApr 10, 2023

A common metabolite may help treat autoimmune diseases

Researchers at Hokkaido University discovered itaconate's modulatory effect on T helper and T regulatory cells, potentially leading to new treatments for autoimmune diseases. The study found that itaconate inhibits Th17 cell differentiation and promotes Treg cell development, reducing disease symptoms in mice models.

SourceHokkaido University·JournalNature Communications·TypeExperimental study·DateMar 14, 2023

Ancient virus genome drives autism?

Research at Kobe University reveals that endogenous retrovirus activation increases a fetus's susceptibility to autism, leading to differences in brain structure and behavior. The study identifies BTBR/R mice as a more accurate model of autism, exhibiting autistic-like behaviors without reduced learning ability.

SourceKobe University·JournalMolecular Psychiatry·TypeExperimental study·DateMar 9, 2023

Scientists at Ben-Gurion University have stumbled upon a groundbreaking approach for treating Alzheimer's disease that has shown remarkable success in mouse models

Scientists at Ben-Gurion University have discovered a groundbreaking treatment approach targeting the mitochondrial gatekeeper VDAC1 for Alzheimer's disease. The new therapy, VBIT-4, demonstrates significant improvement in mouse models, preventing cell death and neuroinflammation while promoting healthy neuron growth.

SourceBen-Gurion University of the Negev·JournalTranslational Neurodegeneration·TypeExperimental study·DateFeb 19, 2023

β-damascone: Aroma component of rose fragrance as a novel immunomodulator

Researchers from Tokyo University of Science discovered β-damascone, a natural aroma compound found in rose fragrance, modulates dendritic cell functions and reduces inflammatory cytokine production. The study showed β-damascone inhibits antigen-dependent activation and Th1 cell development, as well as ear inflammation in mice models.

SourceTokyo University of Science·JournalFrontiers in Nutrition·TypeExperimental study·DateFeb 10, 2023

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

Possible genetic basis and mouse model found for severe nonalcoholic fatty liver disease

A mutant SRSF1 gene may cause severe nonalcoholic fatty liver disease (NASH), researchers have found. Mice lacking the gene develop all three hallmarks of NASH: excess fat, inflammation, and scarring in the liver. The study suggests that DNA damage in liver cells triggers this pathology, highlighting the need to protect the genome.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Communications·TypeExperimental study·DateFeb 9, 2023

Statistics remove bias from debate about how well mouse models mimic human disease

A team of biostatisticians created a framework to evaluate the congruence and discordance of laboratory animals with specific human diseases. The tool removes bias from scientific interpretation of animal data for human conditions, revealing that some models mimic biological mechanisms well while others poorly.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateFeb 2, 2023

Chronic pain-induced depression: Underlying mechanism revealed in mice, showing how ketamine acts as antidepressant in chronic pain

Researchers have uncovered the underlying mechanism driving depressive systems in chronic pain, identifying a potential therapeutic target for treatment. Tiam1 protein modulates neural connections, leading to hypersensitivity and depression; ketamine blocks this effect, alleviating symptoms.

SourceUniversity of Alabama at Birmingham·JournalJournal of Clinical Investigation·TypeExperimental study·DateJan 30, 2023

Aging | Genetic deficiency and pharmacological modulation of RORα regulate laser-induced choroidal neovascularization

In a mouse model of laser-induced CNV, RORα expression was highly increased in the choroidal/RPE complex post-laser, while loss or inhibition of RORα worsened CNV with increased lesion size and vascular leakage. RORα negatively regulates pathological CNV development by modulating angiogenic response and inflammatory environment.

SourceImpact Journals LLC·JournalAging-US·TypeObservational study·DateJan 18, 2023

Type 1 diabetes: Maintaining the enzyme ACE2 in the gut prevents diabetic blindness

A novel treatment involving ACE2-producing probiotic Lactobacillus paracasei may prevent or reverse diabetic retinopathy in Type 1 diabetes patients. The study found that human subjects with retinopathy had a dysregulated systemic RAS and profound gut permeability defects, which were reversed by the probiotic treatment.

SourceUniversity of Alabama at Birmingham·JournalCirculation Research·TypeExperimental study·DateJan 13, 2023

A "muscular" response to regeneration

Researchers at the University of Montreal discovered a key mechanism in muscle regeneration, enabling targeted therapies for diseases like muscular dystrophy. By biasing the conformation of a protein called ELMO2, they improved muscle fusion and regeneration in mouse models.

SourceUniversity of Montreal·JournalNature Communications·DateDec 19, 2022

Aging | Glutaminase inhibitors rejuvenate human skin via clearance of senescent cells: a study using a mouse/human chimeric model

Researchers found that glutaminase inhibitor BPTES selectively eliminates senescent dermal fibroblasts, improving skin aging phenotype by increasing collagen density and cell proliferation. The study suggests BPTES as a potential therapeutic agent for skin aging, offering new treatment options.

SourceImpact Journals LLC·JournalAging-US·TypeExperimental study·DateDec 1, 2022

Intestinal microorganisms influence white blood cell levels in blood

A team of researchers discovered that the gut microbiome plays a critical role in driving granulopoiesis, a process formation of granulocytes, in mice models. The study found that alterations in the gut microbiome composition induced by neutropenia stimulate reactive granulopoiesis via interleukin 17A secreted by T cells, promoting neu...

SourceHokkaido University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateNov 21, 2022

Unraveling the biology behind aggressive pediatric brain tumor reveals potential new treatment avenue

Researchers developed a mouse model of pediatric glioma with a histone mutation called H3.3-G34, revealing a promising outlook for long-term survival through radiation therapy combined with small-molecule inhibitors. The treatment approach also showed immune memory, allowing mice to eliminate new tumor growth without additional treatment.

SourceMichigan Medicine - University of Michigan·JournalJournal of Clinical Investigation·TypeExperimental study·DateNov 15, 2022

A live biotherapeutic product reduces lung damage in a neonatal mouse model of chronic lung disease

A live biotherapeutic product made from three Lactobacillus species has been shown to reduce lung damage in neonatal mice with chronic lung disease. The study found that the product can ameliorate redox imbalance and damages caused by experimental microbial dysbiosis, using a humanized mouse model of lung microbiome transplant.

SourceUniversity of Alabama at Birmingham·JournalAmerican Journal of Respiratory Cell and Molecular Biology·TypeExperimental study·DateNov 14, 2022

Repeated psychological stress is linked with irritable bowel syndrome-like symptoms

Researchers from Tokyo University of Science found that chronic social defeat stress (cSDS) induced mice showed higher intestinal transit ratio and visceral pain-related behaviors, similar to IBS. The study suggests that prolonged psychological stress can cause IBS-like symptoms in mice without intestinal lesions.

SourceTokyo University of Science·JournalFrontiers in Neuroscience·TypeExperimental study·DateNov 7, 2022