Articles tagged with Schizophrenia
A study published in Clinical Neurophysiology found that an electroencephalography (EEG) test can predict how patients with schizophrenia will respond to clozapine therapy. The test achieved an accuracy of 89%, showing promise for improving treatment outcomes and reducing the risk of serious side effects.
Studies found higher and lower levels of genes regulating spine plasticity in individuals with schizophrenia. These alterations may contribute to layer-specific deficits in dendritic spines, a structural abnormality relevant to the disorder. Further research aims to develop new treatments targeting these disturbances.
Researchers exposed fetal monkeys to x-rays and found a profound deficit in working memory ability when tested as adults. This mild insult early in gestation produced significant cognitive dysfunction that emerged with maturation, supporting the critical window of vulnerability during brain development.
Brain signs of schizophrenia found in babies with larger brains and lateral ventricles in high-risk group, differing from girls in the study. Early detection could lead to new approaches to prevent or treat the disease.
Research suggests that exposure to herpes simplex virus 1 may contribute to cognitive and brain abnormalities in schizophrenia. Patients with antibodies for HSV-1 performed poorly on cognitive tests and had reduced brain volume in key regions, including the anterior cingulate and cerebellum.
Researchers used CASL MRI to compare cerebral blood flow in 11 non-medicated patients with schizophrenia and 25 healthy controls. The study revealed extensive areas of hypoperfusion in frontal lobes and higher cognitive function regions, while hyperperfusion was observed in cerebellum and brainstem.
A study published in the journal Addiction found that smoking cessation treatment is as effective among people with severe mental illnesses as it is for the general population. The treatment did not cause deterioration in mental health, and instead improved physical health, reducing mortality rates by three times.
Guy Rouleau has been awarded a $100,000 NARSAD Distinguished Investigator grant to study schizophrenia in 10 Pakistani families. The funding will support whole exome sequencing to identify genes associated with the disorder.
A study at Karolinska Institutet found that the dopamine system of healthy, highly creative people is similar to that of people with schizophrenia. High creative skills are also linked to a higher risk of certain mental illnesses. The study suggests a possible mechanism behind creativity and mental health.
Dr. Patrick Sullivan is leading a research project to identify genetic links to psychosis in schizophrenia and bipolar disorder. He will analyze DNA from four families with a high number of affected members to uncover rare genetic variants and compare them to unrelated samples.
Antipsychotic drugs increase Akt signaling in C. elegans, a common effect across major categories of schizophrenia medication. This finding highlights the importance of Akt signaling in schizophrenia and suggests that medications or dietary approaches targeting this pathway may help alleviate symptoms.
Exercise programs improved anxiety and depression symptoms in individuals with schizophrenia, while changes in physical health outcomes were not significant. Regular exercise is recommended for those with schizophrenia, just like the general population.
Researchers identified copy number variations in genes that affect brain signaling, increasing the risk of schizophrenia. The study found overlaps with genes involved in autism and attention-deficit hyperactivity disorder, suggesting common pathogenesis mechanisms.
A study of British 12-year-olds found nearly 6 percent exhibiting at least one symptom of psychosis, including hallucinations and delusions. The children shared similar risk factors with adult schizophrenia, such as genetic and social risks.
Scientists at Duke University Medical Center discovered a strong link between rare gene variants on chromosome 16 and the development of various seizure disorders. The study found that deletions in this region can cause a wide range of neurological disorders, including schizophrenia and specific forms of epilepsy.
A new study by Université de Montréal scientists finds that mutations in the SHANK3 gene are linked to schizophrenia, a chronic psychiatric disorder. The research also provides clues about the causes of this complex disorder, suggesting a molecular genetic link between schizophrenia and autism.
Researchers have found a specific genetic cause of schizophrenia that impairs communication between the brain's decision-making and memory hubs. Engineered mice with this mutation show difficulty with working memory tasks, highlighting the importance of connectivity in learning and memory.
Researchers at Columbia University Medical Center found a genetic variant causing disrupted communication between brain regions, leading to working memory deficits and increasing the risk of schizophrenia. The study used a mouse model with a 22q11 deletion mutation, which showed impaired neural activity and behavior in cognitive tasks.
A study found Raloxifene improves psychosis symptoms and enhances memory in postmenopausal women with schizophrenia. The therapy may revolutionize treatment options for women suffering from the condition.
A study found that rhesus monkey babies born to mothers with flu during pregnancy had smaller brains and brain changes similar to those in human patients with schizophrenia. This suggests a possible increased risk of schizophrenia in human babies whose mothers had the flu while pregnant.
Researchers at UC Davis have found a strong association between cognitive deficits and decreased levels of the neurotransmitter gamma-aminobutyric acid (GABA) in patients with schizophrenia. The study suggests that targeting the GABA system may help address cognitive decline in the disorder.
Researchers found similar connectivity between genes in normal individuals and schizophrenia patients, but a significant link between aging and gene expression patterns was discovered. Age-related aberrant regulation of developmentally related genes might explain at least part of the manifestation of schizophrenia.
Researchers identified a link between aging and abnormal gene expression patterns in schizophrenia patients, suggesting that age-related aberrant regulation of developmental genes may explain the manifestation of the disease. The study supports early intervention and treatment tailored to the patient's age.
Two studies found that anomalies in the DISC1 gene and its interaction with Kal-7 protein disrupt dendritic spine formation, leading to weaker connections between neurons. This abnormal connectivity is thought to contribute to the onset of schizophrenia symptoms in young adulthood.
Researchers manipulate a schizophrenia susceptibility gene in fetal mice to unravel the link between prenatal brain development and adult cognition. The study finds that transient reduction of the Disrupted-in-Schozophrenia-1 gene leads to aberrant changes in adult animals, including perturbation of specific dopaminergic brain pathways.
A genetic link between schizophrenia and autism is being studied by analyzing behavior in mice with a schizophrenia-linked mutation. Researchers hope to understand the effectiveness of antipsychotic drugs and potentially develop more targeted treatments.
Researchers have discovered a possible biomarker for schizophrenia and bipolar disorder using electroretinography, suggesting retinal deficits contribute to perceptual problems. This finding highlights the importance of considering subtle visual issues in individuals with these conditions.
Regular exercise has been shown to increase hippocampal volume in both healthy individuals and those with schizophrenia, suggesting the brain retains some plasticity despite the disorder. This finding offers hope for potential benefits of incorporating physical activity into treatment plans for patients with schizophrenia.
A Tel Aviv University study suggests that early intervention may be able to prevent schizophrenia in those at high risk. The researchers found that administering drugs to rats during adolescence prevented the development of schizophrenia-like symptoms and brain deterioration.
Research found that individuals with schizophrenia are more likely to be victims of crime and have poorer mental health. The study also estimated a significant economic impact of legal involvement on patients, with direct costs ranging from $1429 per patient per year.
A long-term study of over 1,000 New Zealanders found that children who later developed schizophrenia showed early cognitive deficits in verbal and visual learning, reasoning, and processing speed. These deficits persisted as they grew, with the children losing mental age at a rate comparable to those without schizophrenia.
A breakthrough blood test for diagnosing schizophrenia could become available in 2010, marking a significant shift from traditional brain-based diagnostic methods. The test leverages biomarkers detected in the blood and other bodily fluids to provide a real-time picture of the disease.
A Tel Aviv University study found that restoring normal estrogen levels can alleviate schizophrenia-like behavior in female rats. The researchers also discovered that estrogen increases the effectiveness of anti-psychotic drugs, providing potential hope for treating psychosis in women vulnerable to schizophrenia.
Researchers found a link between the MET proto-oncogene and reduced cancer risk in people with schizophrenia, suggesting an intriguing relationship between cancer-related genes and schizophrenia susceptibility. The study suggests that the gene's activation mechanism may be similar to its role in autism.
Researchers found that expressing mutant DISC1 during prenatal periods, postnatal periods, or both led to distinct brain alterations and behaviors resembling schizophrenia or mood disorders. The study suggests that manipulating DISC1 expression timing may help develop new therapies for psychiatric disorders.
Researchers have developed a mouse model that exhibits schizophrenia-like behavior, allowing for better understanding and potential treatments. The mouse's impaired short-term memory and increased movement are similar to those seen in human patients with schizophrenia, providing a valuable tool for studying the disorder.
Researchers used biosensors to study how anti-psychotic drugs, such as atypical neuroleptics, affect the brain. The study found that these drugs block a particular type of receptor, overriding the increase in acetylcholine they stimulate.
Research highlights new techniques to assess PTSD, identify biomarkers for schizophrenia, and develop treatment for gambling addiction. These breakthroughs may lead to earlier diagnosis and personalized treatment strategies.
A new study published in Science has found that a specific gene associated with schizophrenia plays a critical role in adaptive plasticity, the brain's ability to compensate for disruptions. The discovery suggests that impaired adaptive plasticity may contribute to the development or progression of schizophrenia.
Researchers found raised levels of interleukin-1beta in the spinal fluid of recent-onset schizophrenia patients, indicating activated brain immune defense systems. This discovery offers new potential treatments for the condition, potentially interrupting its course at an early stage.
The research found that patients with schizophrenia from diverse countries and healthcare systems shared similar symptoms, treatment regimens, and socio-economic challenges. Key findings included high rates of antipsychotic polypharmacy and hospitalizations, as well as significant sexual dysfunction.
Researchers used PET scans to identify neuroinflammation in the brains of schizophrenics and migraine sufferers, shedding light on the underlying causes of these conditions. The findings have the potential to transform diagnosis and treatment options, particularly for schizophrenia.
Researchers at King's College London discovered abnormalities in white matter that trigger the onset of schizophrenia, particularly in posterior regions. The study suggests that faulty 'wiring' in key brain areas contributes to the development of full-blown symptoms.
Scientists found a newly discovered gene, KIAA1212, linking to schizophrenia and autism susceptibility genes. They successfully 'rescued' damaged brain cells using rapamycin, a drug acting on mTOR protein.
A CSHL-led team discovered a rare mutation on human chromosome 16 that dramatically increases the risk of schizophrenia. The mutation is associated with an eight-fold increased risk, and studies also found a correlation between 16p11.2 mutations and head size.
A new UK study found that heavy cannabis use is associated with a higher risk of developing schizophrenia in young people. To prevent one case of schizophrenia, it would be necessary to stop around 2,800 male and 5,000 female heavy users, or over 10,000 and 30,000 light users, respectively.
A team of researchers led by Prof. Todd Lencz and Prof. Ariel Darvasi will conduct a groundbreaking study on the genetic basis of schizophrenia using advanced technologies and a large sample group of 4000 Ashkenazi Jewish individuals.
Researchers found that antiepileptic drugs administered during brain development increase schizophrenia-like behaviors in animal models. In humans, having a history of seizures is a significant risk factor for developing schizophrenia.
Researchers at UNC School of Medicine discovered a genetic lesion associated with schizophrenia disrupts brain development, altering neuron numbers and GABAergic cell placement. This finding supports the neurodevelopmental hypothesis, offering new avenues for understanding the disease's molecular mechanisms and potential biomarkers.
The center will investigate the link between schizophrenia and dysfunctional brain N-methyl-D-aspartate receptors (NMDA). Researchers aim to identify pre-symptomatic individuals in adolescence to intervene before disease effects take hold. The grant also supports a summer undergraduate research program.
Case Western Reserve University researchers are using pluripotent stem cells to study schizophrenia and gain a better understanding of the complex disease. The study aims to characterize brain cell function in adolescent patients with schizophrenia, with the goal of deciphering the underlying cause of the condition.
A Sydney study finds that stranger homicides by people with schizophrenia are extremely rare and unpredictable events. The research suggests that providing earlier treatment for schizophrenia can prevent such tragic events.
Schizophrenia is a heterogeneous syndrome with substantial variation in symptomatology and life history. A paradigm shift in research focuses on identifying critical domains of pathology, such as positive and negative symptoms, cognitive impairment, and impaired cognition. This shift aims to improve treatment efficacy by targeting spec...
Researchers at Columbia University Irving Medical Center have identified an area of the brain involved in the earliest stages of schizophrenia. Activity in this region, known as the CA1 subfield, may help predict disease progression and provide opportunities for more targeted drug development to block the mechanism.
A systematic review of 20 studies found that individuals with schizophrenia are at increased risk of violence, but this risk is greatly outweighed by the effect of substance abuse. Substance abuse significantly increases the risk of violence for those with a psychotic illness, similar to those without a psychotic illness.
Researchers created a mouse model with low kalirin levels that developed schizophrenia symptoms as an adolescent, mimicking human delayed onset. The study suggests stimulating kalirin activity could help alleviate cognitive symptoms, offering new treatment direction.
The NIMH is launching a large-scale research project to explore the effectiveness of early and aggressive treatment in reducing symptoms of chronic schizophrenia. The Recovery After an Initial Schizophrenia Episode (RAISE) project aims to develop and test interventions that incorporate diverse treatment approaches and are tailored to i...
Researchers aim to develop an optimal early intervention strategy to treat first episode psychosis, reducing disability and mortality. The Recovery After Initial Schizophrenic Episode (RAISE) study will test culturally appropriate interventions in community-based sites.
Dr. Nichols' approach combines discovery studies with functional and behavioral studies in two models to determine how mental disorders like psychosis and schizophrenia develop. He aims to identify abnormally functioning genes and proteins that may represent novel therapeutic targets for neuropsychiatric disorders.
A study found that clozapine, restricted due to safety concerns, is associated with lower mortality compared to other antipsychotics. Long-term use of any antipsychotic reduces mortality by around 20%, indicating restrictions may have caused thousands of extra deaths worldwide.