Type 2 Diabetes Linked to Lower Cerebral Blood Flow (CBF) in Hippocampus (2024 Study)

This study shows that type 2 diabetes causes decreased blood flow and changes in neural activity in specific parts of the hippocampus, which may initially compensate for cognitive decline but deteriorate with worsening diabetes. Highlights: Decreased Perfusion: Patients with type 2 diabetes have lower blood flow in the right hippocampal CA1, DG, and subiculum areas. …

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Deep Brain Stimulation (DBS) of Nucleus Accumbens Treats Cocaine Addiction in Male Rats But Not Females (2024 Study)

Deep brain stimulation (DBS) in the nucleus accumbens reduces cocaine seeking in male rats but is ineffective in female rats, regardless of their estrous cycle phase. Highlights: No FDA-Approved Treatments: There are currently no FDA-approved treatments for cocaine use disorder. DBS Reduces Cocaine Seeking in Males: Previous studies and the current experiment show that DBS …

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Polygenic Scores May Improve Accuracy of ADHD Diagnosis when Combined with Standard Diagnostic Scales (2024 Study)

The ADHD polygenic score (PGS) adds slight yet statistically significant value to existing ADHD diagnostic tools, though it currently lacks clinical utility. Highlights: Study Overview: Researchers tested if adding a genetic score (ADHD PGS) to traditional diagnostic tools (ASRS and WURS scales) and family history could better predict ADHD. Improvement in Diagnosis: Adding the ADHD …

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Micro & Long Non-Coding RNAs in Blood Samples May Accurately Diagnose Depression & Monitor Treatment Responses (2024 Study)

The study suggests that microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in blood and brain tissues can serve as significant biomarkers for diagnosing and monitoring major depressive disorder (MDD). Highlights: Diagnostic Potential: miRNAs and lncRNAs show significant variations in depressed patients, indicating their potential as diagnostic biomarkers for MDD. Treatment Monitoring: Changes in miRNA levels …

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Autism Genetics & Immune Cell Activity: Causal Biomarkers Identified (2024 Study)

A study reported significant causal relationships between specific immune cell subtypes and autism spectrum disorder (ASD), highlighting 26 genetic correlations and potential biomarkers for early detection and treatment. Highlights: Significant Genetic Correlations: The study identifies 26 potential correlations between genetic predispositions in immune cell types (immunophenotypes) and the risk of developing ASD. Bi-Directional Analysis Results: …

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TMS is Effective But Underutilized for Major Depression vs. Standard of Care (2024 Study)

Transcranial magnetic stimulation (TMS) is underutilized in treating major depressive disorder (MDD) despite showing significant clinical benefits, with barriers including insurance coverage and limited access. Highlights: Study Scope: Analyzed real-world data from a large, multi-site psychiatric practice to evaluate TMS utilization and outcomes compared to usual care (UC) for patients with MDD. Patient Cohorts: Among …

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Genetics of Depression Linked to Gut Microbiome Abnormalities (2024 Study)

Alterations in the gut microbiome are causally linked to major depressive disorder (MDD), with certain gut bacteria either increasing or decreasing the risk of developing MDD. Highlights: Protective Bacteria: Ten gut bacterial taxa, including phylum Actinobacteria and family Bifidobacteriaceae, were found to be protective against MDD. Risk Factors: Ten other taxa, such as phyla Firmicutes …

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Autism Linked to High Leptin & Low Progranulin in Children (2024 Meta-Analysis)

Leptin levels are significantly increased in children with autism spectrum disorder (ASD) compared to healthy controls, suggesting a potential role in ASD pathology. Highlights: Leptin Levels: Children with ASD have significantly higher serum leptin levels compared to healthy controls, as confirmed by both individual study results (p=0.0319) and meta-analysis (p<0.001). Progranulin Reduction: In addition to …

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Allopregnanolone vs. Diazepam: Antidepressant Effects via Brain Activity Modulation (2024 Mouse Study)

Allopregnanolone shows antidepressant-like effects in mice by increasing social interaction and specific brain wave activities, unlike diazepam. Highlights: Allopregnanolone: Allopregnanolone, a neuroactive steroid, increases social interaction time in mice experiencing social defeat stress, indicating potential antidepressant-like effects. Brain Activity: This increase in social interaction is associated with heightened theta and beta oscillations in the basolateral …

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