Nir Barak

ORCID: 0000-0002-0827-6509
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About
Contact & Profiles
Research Areas
  • Clinical Nutrition and Gastroenterology
  • Liver Disease Diagnosis and Treatment
  • Nutrition and Health in Aging
  • Pharmaceutical studies and practices
  • Anorectal Disease Treatments and Outcomes
  • Child Nutrition and Feeding Issues
  • Olfactory and Sensory Function Studies
  • Pressure Ulcer Prevention and Management
  • HIV/AIDS Research and Interventions
  • HIV, Drug Use, Sexual Risk
  • Gastrointestinal disorders and treatments
  • Respiratory and Cough-Related Research
  • Mast cells and histamine
  • Systemic Lupus Erythematosus Research
  • Obsessive-Compulsive Spectrum Disorders
  • Gastroesophageal reflux and treatments
  • Liver Diseases and Immunity
  • Metabolism and Genetic Disorders
  • Helicobacter pylori-related gastroenterology studies
  • Hepatitis C virus research
  • Pancreatitis Pathology and Treatment
  • Neurotransmitter Receptor Influence on Behavior
  • Schizophrenia research and treatment
  • Liver Disease and Transplantation
  • Body Image and Dysmorphia Studies

RDD Pharma (Israel)
2015-2019

Centers for Disease Control and Prevention
2014

National Institute of Diabetes and Digestive and Kidney Diseases
2010

National Institutes of Health
2010

Eunice Kennedy Shriver National Institute of Child Health and Human Development
2010

Tel Aviv University
1998-2010

Health and Human Development (2HD) Research Network
2010

Kootenay Association for Science & Technology
2010

National Biodiesel Board
2010

Peking University
2009

The purpose of this study was to critically examine current approaches for estimating energy expenditure and requirements hospitalized patients requiring nutrition support.All indirect calorimetry tests performed by our adult support service from 1991 2000 were reviewed. Stress factors calculated as the measured divided predicted using Harris-Benedict equation. Various methods adjusting body weights obese subjects use in equation evaluated.The average stress factor these 1.25, there no...

10.1177/0148607102026004231 article EN Journal of Parenteral and Enteral Nutrition 2002-07-01

The hepatic histology in nonalcoholic fatty liver disease can vary from isolated steatosis to steatohepatitis progress cirrhosis and liver-related death. aim was evaluate the use of blood serum N-glycan fingerprinting as a tool for differential diagnosis steatosis. A group 47 patients with NAFLD diagnosed by clinical laboratory analysis ultrasonography, studied histologically using Brunt's scoring system. control included 13 healthy individuals. profiles proteins were determined DNA...

10.1021/pr800656e article EN Journal of Proteome Research 2009-01-13

Olanzapine's efficacy in schizophrenia is attributed to antagonism of dopamine and serotonin receptors. Olanzapine also a potent histamine-H1 antagonist that results weight gain somnolence. Betahistine centrally acting agonist, therefore may reduce olanzapine's effect on histamine receptors the brain. high affinity for receptor warrants use doses betahistine. Forty-eight healthy women were recruited randomized receive either betahistine 144 mg/day or matching placebo 4 weeks. Due dose...

10.1177/0269881115626349 article EN Journal of Psychopharmacology 2016-02-02

Eosinophilic gastroenteritis is a rare disorder of unknown etiology. We describe case 63-year-old woman with chronic diarrhea and eosinophilia. Small bowel biopsy revealed eosinophils in large clusters the lamina propria focal infiltration epithelium. The patient's eosinophilia started shortly after enalapril was prescribed. When patient instructed to stop taking that drug, her promptly ceased, blood eosinophil level returned normal. This first reported eosinophilic associated an...

10.1097/00004836-200108000-00014 article EN Journal of Clinical Gastroenterology 2001-08-01

Patients with schizophrenia experience higher rates of obesity and related morbidity mortality than the general population does. Given preclinical studies revealing role histamine H1 receptor in human eating behavior, potential olanzapine to block this system, we hypothesized that agonists may be beneficial reducing antipsychotic-associated weight gain. In present study, 36 patients a diagnosis or schizoaffective disorder treated were randomized betahistine (48 mg/d) matching placebo for 16...

10.1097/jcp.0000000000000489 article EN Journal of Clinical Psychopharmacology 2016-04-19

Background The 13C-caffeine breath test (CBT) is a noninvasive tool for the evaluation of cytochrome P450 system, implicated in development nonalcoholic steatohepatitis. Goal To apply CBT to assess extent hepatic fibrosis patients with fatty liver disease (NAFLD). Methods Twenty-six consecutive (mean age 56.1±6.85 y, 69.2% women) NAFLD underwent CBT, addition clinical and laboratory evaluations biopsy. Ten healthy individuals matched served as controls. Results Mean delta over baseline...

10.1097/mcg.0b013e318046ea65 article EN Journal of Clinical Gastroenterology 2008-04-01

According to National HIV Behavioral Surveillance system data, human immunodeficiency virus (HIV) testing increased among gay, bisexual, and other men who have sex with from 2008 2011 in cities funded by the Centers for Disease Control Prevention's Expanded Testing Initiative, suggesting that focused initiatives might positive effects.

10.1093/cid/ciu851 article EN public-domain Clinical Infectious Diseases 2014-10-28

The energy requirement of a patient receiving nutrition support is typically estimated by calculating the basal expenditure (BEE) using Harris-Benedict equations and multiplying stress activity factors. Because fat-free mass (FFM) fat (FM) are important determinants BEE, we hypothesized that body composition estimates derived from bioelectrical impedance analysis (BIA) could be used to develop predictive for resting (REE) were more accurate than those calculated equations.Seventy-six adults...

10.1177/014860710302700143 article EN Journal of Parenteral and Enteral Nutrition 2003-01-01

10.1093/ajcn/79.2.341a article EN publisher-specific-oa American Journal of Clinical Nutrition 2004-02-01

Topical α-agonists contract the internal anal sphincter muscle; therefore, they may serve as treatment for fecal incontinence.The aim of this study was to investigate effect α-agonist oxymetazoline 1.0% on incontinence in patients with spinal cord injury.This a double-blind, crossover study. Before randomization, all underwent 1-day, open-label manometry and pharmacokinetic study.The conducted at Department Internal Medicine, Semmelweis University, Hungary.Nineteen were enrolled into...

10.1097/dcr.0000000000001265 article EN Diseases of the Colon & Rectum 2018-11-17

Three cases of hepatic involvement in antiphospholipid syndrome are described. One patient had catastrophic with haemorrhages and necrosis the liver parenchyma. The second blood clots small vessels. third autoimmune hepatitis type I associated syndrome. Other possible manifestations also discussed.

10.1046/j.1440-1746.1999.02018.x article EN Journal of Gastroenterology and Hepatology 1999-11-01

10.1023/a:1026631230611 article EN Digestive Diseases and Sciences 1999-01-01

Abstract. Idiopathic bilateral recurrent branch retinal arterial occlusion (IBRBRAO) is a rare syndrome characterized by migraine headaches, tinnitus, vertigo, hearing loss, and artery of unknown etiology. Affected patients frequently undergo wide range medical evaluation have no apparent pathologic findings. We present here case IBRBRAO, associated with urticarial rash, not described in this previous publications.

10.1111/j.1600-0420.1997.tb00264.x article EN Acta Ophthalmologica Scandinavica 1997-02-01

Abstract Background This aim of the study was to conduct a quality analysis compounded formulations topical nifedipine 0.2% obtained from retail compounding pharmacies. Methods Nifedipine preparations were purchased in triplicate (refills two weeks apart) nine commercial pharmacies and assessed for: (1) label information compliance with regulations; (2) content homogeneity, determined by assessment samples top, middle bottom each preparation microscopic crystals; (3) prescription uniformity...

10.1002/jppr.1470 article EN Journal of Pharmacy Practice and Research 2019-04-01
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