Articles tagged with Schizophrenia
Researchers have identified nearly 300 common and over 20 rare genetic variants as significant risk factors for schizophrenia. The study emphasizes the role of multiple genes rather than single-gene causation, revealing complexity in the mechanisms underlying the disorder.
A new study analyzed clozapine prescription patterns in patients with first-episode psychosis, finding that approximately 20-30% do not respond to conventional treatments. The use of clozapine can significantly reduce psychotic symptoms and improve quality of life for these patients.
Researchers found individuals with schizophrenia struggle to discriminate between reward levels, leading to apathy and motivation deficits. The study suggests potential treatments, including brain stimulation and targeted psychotherapy.
A novel peptide, KS-133, has been developed to target genetic mechanisms associated with schizophrenia. The nanoparticle-based drug delivery system, where KS-133 is encapsulated with a brain-targeting peptide, shows effective distribution in the brains of mice and improves cognitive functions in mice with induced schizophrenia.
A new study has identified two proteins that play a vital role in modulating cell responses in schizophrenia. The researchers found that these proteins can be targeted to develop drugs that address specific symptoms of the disease, potentially leading to more effective and personalized treatments.
This study analyzed resting state fMRI data to investigate salience network disruptions in schizophrenia. The analysis revealed weaker dorsal salience network connectivity and increased ventral salience network connectivity in patients.
Researchers from the University of South Australia have developed a new coating that targets the gut microbiome to improve antipsychotic medication absorption, mitigating unwanted weight gain. The reformulated Lurasidone reduces weight gain by 8-fold and boosts serotonin levels by over 250%.
A new study has uncovered unprecedented insights into the cellular basis of schizophrenia, linking genetic risk factors to specific neuronal populations. The research found that excitatory neurons were the most affected cell group, with transcriptional changes implicating neurodevelopment and synaptic signaling.
Two studies published in Science reveal significant advances in understanding the molecular biology of neuropsychiatric disease, including a comprehensive map of regulatory components of the brain. The research provides critical insights into the pathogenesis of mental health disorders and holds promise for therapeutic applications.
Researchers at King's College London found that thousands of DNA sequences from ancient viral infections contribute to psychiatric disorder susceptibility. Five specific Human Endogenous Retroviruses (HERVs) were associated with increased risk for schizophrenia, bipolar disorder, and depression.
Researchers at IIT have identified a brain network that enables the recognition of others' emotions, which could lead to more effective treatments for neurodevelopmental conditions. The discovery provides insight into how the brain processes social functions and may help develop targeted therapies.
A UT Arlington student has made a groundbreaking connection between worm behavior and brain disease in humans. Through her research, she found that worms with mutations in neurodegeneration genes exhibit abnormal reactivity to stimuli, similar to those affected by schizophrenia and other neurological disorders.
A recent study published in JAMA Network Open found that understaffed nursing homes in disadvantaged neighborhoods are more likely to overmedicate residents with antipsychotics. The researchers suggest that increasing staffing levels could help reduce the use of these medications and address the root causes of behavioral issues.
Research reveals 66-75% of people experiencing homelessness have underlying mental health conditions, with males affected more severely. The study emphasizes the need for integrated interventions and gender-specific approaches to address homelessness and related health disparities.
A randomized controlled trial found that co-administration of probiotic and vitamin D supplements improved MoCA scores and increased the percentage of patients with normal cognition in individuals with schizophrenia. The study suggests that probiotics may be a novel way to treat mental disorders by regulating gut microbiota.
A large naturalistic study found ECT to be effective in reducing illness severity for depression, bipolar depression, schizophrenia, and mania. Common side effects included confusion and cognitive impairment, but rare complications such as prolonged seizures and cardiovascular issues were also reported.
A large-scale animal study reveals that brain pH and lactate levels are a common feature across various neuropsychiatric conditions, including schizophrenia, bipolar disorder, autism, depression, epilepsy, and Alzheimer's disease. Changes in brain energy metabolism are linked to cognitive impairment, particularly working memory.
A new Dartmouth study reports on a unique case of prosopometamorphopsia (PMO), a rare condition that distorts facial features. The researchers used computer software to visualize the patient's real-time perception of face distortions, providing accurate and photorealistic visualizations for the first time.
Researchers have identified genetic variants linked to cognitive control and social problems in schizophrenia, potentially paving the way for more effective treatments. The study found that these variants are not targeted by current medications, which often focus on dopamine pathways.
A new study by researchers at the University of Minnesota reveals that non-invasive brain stimulation can change a specific brain mechanism related to human behavior. The technique, called transcranial alternating current stimulation, modulates brain activity by shifting when brain cells are active.
Researchers found similar gene activity changes in brain tissue from people with schizophrenia and older adults, suggesting a shared biological basis for cognitive decline. The study identified the Synaptic Neuron and Astrocyte Program (SNAP), which is tightly coordinated between neurons and astrocytes.
A new study suggests that personal recovery, defined as living a full meaningful life despite illness limitations, can prevent serious mental health problems. Key elements of recovery include understanding mental health challenges, finding purpose and meaning, and receiving support.
Dr. Ryyna Ethell's lab at UC Riverside has been awarded a $2.4 million NIH grant to investigate the role of astrocytes in inhibitory synapse development and their connection to neurodevelopmental disorders like ADHD and autism.
A new study found that the link between paternal age and rare congenital disorders is more complex than previously thought. Researchers discovered that while older fathers are more likely to have children with certain bone and heart malformations, some genetic mutations associated with these conditions do not increase with paternal age.
Scientists have discovered that the bat brainstem processes echolocation and communication calls differently, with a stronger response to less frequent calls due to better neural synchronization. The findings may also be relevant to medical applications in humans, such as understanding diseases like ADHD or schizophrenia.
A new blood test developed by Indiana University School of Medicine has identified biomarkers that can objectively measure schizophrenia severity and predict future risk. The test enables personalized treatment matching, reducing uncertainty and improving patient outcomes.
Researchers found that bullied adolescents have lower levels of glutamate in the brain's anterior cingulate cortex region, which regulates emotions and decision-making. This imbalance is linked to higher levels of subclinical psychotic experiences in early adolescence.
A UCLA-led evaluation found that 81% of homeless residents in the pilot program were no longer unsheltered after one year. The initiative improved housing placement rates and reduced time spent in locked psychiatric settings.
A Rutgers University study found that long-acting antipsychotic injections reduced 30-day rehospitalization rates for patients with schizophrenia or schizoaffective disorder by 75% compared to oral medication. This shift can have significant financial and medical benefits for both patients and hospitals.
A new study published in Heart Rhythm found that over 10% of patients taking quetiapine or haloperidol developed heart rhythm disorders. The study highlights the need for vigilant monitoring of patients using these medications to minimize the risk of cardiac complications.
AI models predict patient outcomes with high accuracy within their training data, but their performance deteriorates when used outside the original trial or in different clinical settings. Researchers aim to improve accuracy by examining large patient groups and exploring new data modalities.
A new study by Southern Methodist University's Neely Myers found that young people with early-onset psychosis are ambivalent about stopping substance use. Participants offered feedback on ways to improve care, including more information about substance use and strategies for addressing psychological and physical pain.
Researchers found that repetitive transcranial magnetic stimulation (rTMS) improved event-based prospective memory in patients with schizophrenia, but not time-based prospective memory. The study suggests rTMS as a potential therapeutic option for prospective memory impairments in individuals with schizophrenia.
Researchers successfully produced alstonine, a naturally occurring substance with potential for treating mental disorders, using genetically engineered yeast cells. The yeast platform has the potential to discover and develop plant-based medicines, including those for schizophrenia.
The latest APA journal issues provide new insights into psychotic disorders, including altered neurodevelopment and early symptoms associated with schizophrenia risk. The issues also highlight racial disparities in diagnosis and predictors of first psychotic episodes. Psychiatric Services features research on barriers to addiction trea...
A study in mice finds that two proteins, MAP6 and Kv3.1, interact to control movement, memory, and anxiety. Disrupting this interaction can lead to behavioral changes, including hyperactivity and impaired memory, highlighting potential new targets for schizophrenia treatment.
A recent study published in the British Journal of Psychiatry found that individuals with severe mental illness were 50% more likely to die from all causes following a COVID-19 infection. The research also highlighted regional disparities and differences in mortality risk based on ethnicity and geographical location.
Researchers have discovered axonal dysregulation in the prenatal brain as a mediator of genetic risk for schizophrenia. The study used induced pluripotent stem cells and three-dimensional brain organoids to identify key genes involved, including CYFIP1, which is highly expressed in microglia.
Researchers found that hierarchical cortical organization is impaired in people with schizophrenia, leading to disruptions in processing stimuli from the external world. This disruption affects secondary processing of sensorimotor-visual gradients, explaining behavioral and clinical symptoms of the disease.
Researchers developed AI tools to analyze speech patterns in people with schizophrenia and found that these patterns can be distinguished from those of healthy individuals. The study uses an AI language model trained on internet text to represent the meaning of words, and it was able to predict the words generated by control participan...
Research identifies genetic overlap between schizophrenia and cardiovascular disease (CVD) risk factors, particularly smoking initiation and BMI. The study found that people with schizophrenia have a genetic propensity to smoking and a reduced genetic risk of obesity.
A new study found that individuals visiting the emergency department for substance-induced psychosis have an 18.5% risk of developing schizophrenia within three years. Younger age and male sex were associated with a higher risk, particularly for cannabis use.
Researchers have identified 439 genetic variants that regulate gene expression and may contribute to the development of schizophrenia. This discovery could pave the way for more precise interventions and therapies by providing insights into the complex genetic architecture underlying the condition.
Neurological soft signs (NSS) can distinguish people with schizophrenia from healthy individuals. Smartphone sensing technology offers a standardized assessment method, reducing subjective rating systems' barriers.
A new opinion piece highlights the safety gap in clinical trials and drug labeling for people with obesity, arguing that correct dosing instructions should be included on labels. The authors recommend a three-pronged approach to address this gap, including conducting studies in people with obesity before market approval.
Researchers have found that a genetic risk factor for schizophrenia, 3q29 deletion syndrome, impairs mitochondrial function in brain cells. This impairment contributes to the development of schizophrenia and has implications for understanding the neurobiology of the disease.
Researchers have discovered a possible link between mitochondrial function and schizophrenia, highlighting impaired energy production as a key factor in its development. Mitochondrial dysregulation can cause psychiatric symptoms and disorders, and its effects are seen not only in the brain but also in other cells, such as kidney cells.
A new study has identified thousands of shared genetic variants between patients with irritable bowel syndrome (IBS) and psychiatric disorders such as bipolar disorder, schizophrenia, depression, and anxiety. This discovery provides a new understanding of the brain-gut axis and holds promise for developing effective treatments for IBS.
Researchers have identified age-related changes in brain patterns associated with schizophrenia risk using a new hybrid, data-driven method. The study found alterations in prefrontal-sensorimotor and cerebellar-occipitoparietal brain connections linked to genetic risk for schizophrenia.
A recent study published in Nature Mental Health reveals that amotivation and anhedonia are key factors in determining social functioning among individuals with psychiatric disorders. The research found that these negative symptoms have a stronger impact on social functioning than expressive dysfunction, especially in patients with sch...
Researchers at the University of Copenhagen have discovered a way to replace diseased and aged brain cells with new ones, which could lead to treatments for neurodegenerative diseases like Huntington's disease and multiple sclerosis. The study used humanized mice models to test the effectiveness of glial cell transplantation.
Researchers at Northwestern University discovered that antipsychotic drugs interact with a different neuron type than scientists originally believed, which could lead to better treatments for schizophrenia. The study's findings suggest that the effect of antipsychotics on dopamine receptors has little bearing on their efficacy in humans.
A University of Ottawa study reveals that a diverse brain's ecosystem is key to maintaining normal function while responding to changes. This concept is inspired by Charles Darwin's idea that biodiversity is crucial for survival, suggesting cell-to-cell diversity helps prevent failures in brain circuits.
Researchers found a correlation between somatic copy-number variants and schizophrenia, with genes NRXN1 and ABCB11 being identified as key players. These mutations occur early in development but after genetic material is inherited, and are present only in a fraction of cells.
Researchers have discovered that inhibitory neurons can transmit information over long distances in the prefrontal cortex, allowing for adaptive changes in behavior. This synchronization of gamma oscillations is associated with the realization of new rules and enables cognitive flexibility.
Researchers from Mount Sinai Health System presented new findings on the impact of customized lighting on inpatient sleep, a machine-learned combination of ventilatory, hypoxic, and arousal burdens, and the effects of obstructive sleep apnea and insomnia on cognitive impairment. The studies aim to improve sleep timing and duration, dia...
The June issues of The American Journal of Psychiatry and Psychiatric Services focus on substance use disorders, opioids, and youth self-harm and suicide. The articles highlight the importance of addressing these issues to improve patient outcomes and reduce stigma.
A study published in Brain Behavior and Immunity found autoantibodies against a synaptic adhesion protein, neurexin 1α, in patients with schizophrenia. In mice, these autoantibodies caused schizophrenia-related changes, including reduced social behavior and cognitive function.
Researchers discovered vitamin D's role in regulating dopaminergic neuron differentiation and function. The study found that vitamin D alters developing neurons in the brain's dopamine circuit.
A new study found that over 100 genes linked to schizophrenia risk are associated with the placenta, not just the brain. This could lead to new prevention strategies targeting placenta biology, allowing for early interventions and potentially changing the course of developmental disorders.