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The Mount Sinai Hospital / Mount Sinai School of Medicine


Neural pathway critical to correcting behavioral errors related to psych disorders found

Mount Sinai researchers identified a neural pathway that detects errors and guides subsequent behavioral improvement, which is frequently dysregulated in psychiatric disorders. They also suggest that neurostimulation of this brain pathway could provide an important mechanism for attention adjustments following behavioral errors.

Mount Sinai researchers identify mechanisms that are essential for proper skin development

Researchers found that Polycomb repressive complex 1 (PRC1) and Polycomb repressive complex 2 (PRC2) maintain the skin-specific gene expression pattern necessary for proper development of the skin. The study suggests that targeting both complexes may be a more effective form of treatment for certain cancers.

Scientists take important step toward using retinal cell transplants to treat blindness

Researchers successfully transplanted human cadaver-derived retinal pigment epithelium (RPE) into non-human primate models, showing promise for treating macular degeneration and blindness. The study demonstrates the safety and feasibility of this approach, paving the way for potential human clinical trials.

Mount Sinai researchers identify and characterize 3 molecular subtypes of Alzheimer's

Researchers at Mount Sinai identified three major molecular subtypes of Alzheimer's disease using RNA sequencing data from over 1,500 brain samples. These subtypes were independent of age and disease stage and corresponded to different combinations of dysregulated biological pathways leading to brain degeneration.

Repeated ketamine infusions reduce PTSD symptom severity

A study conducted by researchers from the Icahn School of Medicine at Mount Sinai found that repeated ketamine infusions significantly reduced symptom severity in individuals with chronic PTSD. The improvement was rapid and maintained for several weeks afterwards, suggesting this may be a promising treatment option for PTSD patients.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalAmerican Journal of Psychiatry·DateJan 5, 2021

Multi-population risk scores could improve risk prediction for inflammatory bowel diseases, study finds

Researchers developed polygenic risk scores using genetic data from nearly 30,000 individuals, improving IBD predictions across European, Ashkenazi Jewish, Hispanic, and UK Biobank populations. Lower predictive power was seen in African ancestry due to smaller datasets and greater genetic diversity.

Scientists unlock promising key to preventing cancer relapse after immunotherapy

Researchers found that targeting the fas protein can prevent cancer cells from escaping immunotherapies, leading to longer-lasting positive responses and improved survival rates. By combining immunotherapies with small molecule inhibitors, bystander tumor cell killing may be potentiated to eliminate antigen-loss variants.

A novel monoclonal antibody therapy cuts LDL cholesterol by half in a high-risk patient population,

A phase 2 study found that evinacumab reduced LDL cholesterol by 50% in patients with severe hypercholesterolemia resistant to standard treatments. The therapy works through a different mechanism than existing drugs and shows promise for treating refractory hypercholesterolemia.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNew England Journal of Medicine·DateNov 15, 2020

New insights into facial birth defects are revealed by Mount Sinai researchers

The study, published in Genes and Development, reveals the role of signaling pathways in regulating cell behavior, including proliferation, death, and migration. The research team identified new signaling outputs that function independently of established FGF signal transduction pathways, particularly in cell adhesion.

Mount Sinai develops machine learning models to predict critical illness and mortality in COVID-19 patients

Researchers developed machine learning models predicting critical events and mortality in COVID-19 patients using electronic health records. The models identified key drivers of critical illness, including acute kidney injury and elevated lactate dehydrogenase, and predicted outcomes at various time windows.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Medical Internet Research·DateNov 10, 2020

Study finds 1.7 million New Yorkers have been infected with SARS-Cov-2 and virus was in NYC earlier than reported

A retrospective surveillance study of over 10,000 plasma samples found that more than 1.7 million New Yorkers have been infected with SARS-CoV-2, indicating the virus was present in the city before the first confirmed case. The infection fatality rate is close to 1 percent, ten times deadlier than the flu.

Ultrasounds show impact of COVID-19 on the heart

Researchers found diverse cardiac structural damage in COVID-19 patients, including right ventricular dysfunction, regional left ventricular wall motion abnormalities, and diffuse left ventricular dysfunction. These abnormalities were associated with worse prognosis and mortality compared to troponin elevations alone.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of the American College of Cardiology·DateOct 26, 2020

Mount Sinai researchers find that where people live can impact their risk for common chronic conditions including high blood pressure and depression

A new study by Mount Sinai researchers found that a person's risk of uncontrolled chronic disease increases after moving to a place where the condition is more common. The study analyzed millions of adults who moved to new neighborhoods, counties, and states, tracing how their health changed after the move.

Mount Sinai researchers develop COVID-19 mortality prediction model

Researchers at Mount Sinai Hospital developed a COVID-19 mortality prediction model based on patient's age, minimum oxygen saturation, and type of encounter. The model showed high accuracy (AUC=0·91) in predicting mortality among patients with COVID-19, offering potential for improved prognostication and management.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalThe Lancet Digital Health·DateSep 22, 2020

Additional data on blood thinner efficacy for COVID-19 and insight on best possible regimens

Researchers found that therapeutic and prophylactic doses of blood thinners reduced mortality by roughly 50 percent in COVID-19 patients. The study also showed that anticoagulation therapy was associated with improved outcomes both in and out of the intensive care unit.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of the American College of Cardiology·DateAug 26, 2020

Mount Sinai study finds COVID patients were most commonly readmitted to hospital for respiratory complications

A Mount Sinai study found that COVID patients were most commonly readmitted to the hospital for respiratory distress, with chronic obstructive pulmonary disease and hypertension being key comorbidities. The study also showed that these patients had shorter hospital stays and lower rates of anticoagulation treatment.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of General Internal Medicine·DateAug 21, 2020

Elevated "hunger" hormone leaves trauma-exposed teens at higher risk for PTSD

A recent study published in JAMA Network Open found that trauma-exposed adolescents with moderately elevated acyl-ghrelin hormone levels are almost eight times more likely to develop post-traumatic stress disorder (PTSD). The study also suggests that lower acyl-ghrelin levels may reduce the risk and severity of subsequent PTSD.

Mount Sinai researchers identify master regulator genes of asthma

Researchers have identified master regulator genes that causally regulate key biological processes underlying asthma. These genes provide a novel path forward for uncovering mechanisms and developing novel therapies for asthma. The study also identified nasal gene signatures for mild, moderate, and severe persistent asthma.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalJournal of Allergy and Clinical Immunology·DateAug 20, 2020

Dilated blood vessels in the lung may explain low oxygen levels in severe cases of COVID-19

A new study suggests that COVID-19 is causing significant dilation of the lung's blood vessels, contributing to low oxygen levels and unusual respiratory behavior. The dilation was detected using a non-invasive ultrasound technique, and its correlation with oxygen levels may help explain why some patients experience 'happy hypoxia.'

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateAug 20, 2020

New study identifies better treatment option for common complication of dialysis

A new study has identified a better treatment option for arteriovenous fistulas used in hemodialysis, reducing the need for repeated hospital visits and procedures. The drug-coated balloon angioplasty treatment has shown promising results, with patients being 25% more likely to have a functioning access point after 6 months.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNew England Journal of Medicine·DateAug 19, 2020

Researchers identify better classification system for adult idiopathic scoliosis

Researchers have designed a new X-ray classification system for adult idiopathic scoliosis, providing a more universal and standard assessment of the condition. The three-component method maintains existing curve types while introducing assessments of global alignment and lumbosacral curve, improving treatment options for older patients.

Epigenetic changes in ADNP syndrome, a cause of autism, do not indicate profound presentation of the disorder

A study found that two blood epigenetic signatures associated with ADNP syndrome have only modest correlation with clinical manifestations. Researchers conclude that these signatures should be carefully evaluated before being considered as biomarkers for predicting behavioral outcomes.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalAmerican Journal of Human Genetics·DateAug 5, 2020

Mount Sinai researchers discover treatment option for rare genetic disorder

Researchers at Mount Sinai Hospital have discovered a novel genetic sequencing technology that identified the cause and treatment of a previously unknown severe auto-inflammatory syndrome. The technology, tailored to the patient's own genetic code, pinpointed an unknown mutation in the JAK1 gene causing permanent immune system activation.

Research shows COVID-19 is an independent risk factor for acute ischemic stroke

A study published in the American Journal of Neuroradiology found COVID-19 infection to be significantly associated with acute ischemic stroke. After adjusting for age, gender, and risk factors, the researchers showed a 3.9-fold increased risk of stroke among patients with COVID-19 compared to control subjects.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalAmerican Journal of Neuroradiology·DateJun 25, 2020