Mehdi Nikkhah

ORCID: 0000-0003-0378-9628
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About
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Research Areas
  • Liver Disease Diagnosis and Treatment
  • Diet, Metabolism, and Disease
  • Hepatitis C virus research
  • Hepatitis B Virus Studies
  • Pancreatitis Pathology and Treatment
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • COVID-19 Clinical Research Studies
  • Helicobacter pylori-related gastroenterology studies
  • Trace Elements in Health
  • Health Promotion and Cardiovascular Prevention
  • Gallbladder and Bile Duct Disorders
  • Gastric Cancer Management and Outcomes
  • Pancreatic and Hepatic Oncology Research
  • Veterinary medicine and infectious diseases
  • Colorectal Cancer Screening and Detection
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Multimodal Machine Learning Applications
  • Obesity, Physical Activity, Diet
  • Alcohol Consumption and Health Effects
  • Heavy metals in environment
  • Heavy Metal Exposure and Toxicity
  • Dermatological and COVID-19 studies
  • Generative Adversarial Networks and Image Synthesis
  • Gastrointestinal disorders and treatments
  • Pediatric Hepatobiliary Diseases and Treatments

Iran University of Medical Sciences
2016-2025

Firoozgar General Hospital
2016-2021

Mazandaran University of Medical Sciences
2016

Rasool Akram Hospital
2016

Isfahan University of Medical Sciences
2011

Masked Autoencoders (MAEs) learn generalizable representations for image, text, audio, video, etc., by reconstructing masked input data from tokens of the visible data. Current MAE approaches videos rely on random patch, tube, or frame based masking strategies to select these tokens. This paper proposes AdaMAE, an adaptive strategy MAEs that is end-to-end trainable. Our samples semantic context using auxiliary sampling network. network estimates a categorical distribution over...

10.1109/cvpr52729.2023.01394 article EN 2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) 2023-06-01

Rhino-orbito-cerebral mucormycosis (ROCM) is a rare disease with acute and fulminant manifestation. This infection associated high morbidity mortality rates. Herein, we reviewed the manifestations, underlying conditions, medical treatments, surgical interventions in ROCM patients admitted to tertiary referral center northern Iran over seven-year period.In retrospective analysis, 15 cases of were identified from 2007 2013 Bu Ali Sina Hospital, Sari, Iran. All clinically diagnosed confirmed by...

10.18869/acadpub.cmm.2.4.15 article EN cc-by Current Medical Mycology 2016-12-01

Various risk scoring systems have been recently developed to predict clinical outcomes in patients with upper gastrointestinal bleeding (UGIB). The two commonly used include full Rockall score (RS) and the Glasgow-Blatchford (GBS). Bleeding scores were assessed terms of prediction UGIB.Two hundred (age >18 years) obvious symptoms UGIB emergency department Rasoul Akram Hospital enrolled. Full RS GBS calculated. We followed for records rebleeding 1-month mortality. A receiver operating...

10.2147/ceg.s114860 article EN cc-by-nc Clinical and Experimental Gastroenterology 2016-10-01

Cholangiocarcinoma (CCA) has a low survival rate of 5-17%, despite advancements in diagnosis and treatment. Liver function impacts disease prognosis, the albumin-bilirubin (ALBI) score is new assessment model for this purpose. While research suggests correlation between ALBI score, liver failure mortality intrahepatic CCA (iCCA), predicting outcomes extrahepatic (eCCA) challenging. Our objective was to assess prognostic role grade overall eCCA patients. Patients with who had visited Firuzgar...

10.1186/s12876-025-03979-9 article EN cc-by-nc-nd BMC Gastroenterology 2025-05-19

The current study aimed to evaluate the efficacy of sitagliptin vs. placebo in treating non-alcoholic fatty liver disease (NAFLD). In a triple-blind randomized clinical trial, we assigned 120 eligible subjects with NAFLD receive daily dosing 50 mg ( n = 60) or for 56 weeks and lifestyle modification both groups. Laboratory anthropometric outcomes were measured, stiffness was assessed using fibroscan. primary outcome measures changes from baseline fibrosis scores transferases. Out patients...

10.3389/fmed.2022.937554 article EN cc-by Frontiers in Medicine 2022-07-28

BACKGROUND Reflux disease is a common gastrointestinal problem. The association between reflux and gastritis pattern controversial.To determine the in patients with Helicobacter pylori (H. pylori) infection. METHODS 470 dyspepsia were enrolled this study. inclusion criteria willing to participate study, age over 40 years, having of ROME III for at least 3 months. Patients history H. eradication therapy during months before gastric surgery, cancer excluded. All participants underwent upper...

10.15171/mejdd.2016.33 article EN cc-by-nc Middle East Journal of Digestive Diseases 2016-06-13

Besides impaired respiratory function and immune system, COVID-19 can affect renal from elevated blood urea nitrogen (BUN) or serum creatinine (sCr) levels to acute kidney injury (AKI) failure. This study aims investigate the relationship between Cystatin C other inflammatory factors with consequences of COVID-19.A total 125 patients confirmed Covid-19 pneumonia were recruited in this cross-sectional March 2021 May 2022 at Firoozgar educational hospital Tehran, Iran. Lymphopenia was an...

10.1186/s12879-023-08258-0 article EN cc-by BMC Infectious Diseases 2023-05-22

Continuous scoring systems were developed versus traditional dichotomous approaches to define metabolic syndrome. The current study was carried out evaluate the ability of predict fatal and nonfatal cardiovascular events.The data 5147 individuals aged 18 years or more obtained from a population-based cohort analyzed. occurrence atherosclerotic disease (ASCVD) in period 7 follow-up considered as associated outcome. Joint Interim Statement (JIS) definition, definition syndrome (MetS), two...

10.1002/clc.23827 article EN cc-by Clinical Cardiology 2022-04-14

Dietary modifications remain the mainstay in managing nonalcoholic fatty liver disease (NAFLD). Published data on effect of overall dietary patterns NAFLD is scarce. The present study aims to extract and investigate their association by gender, using structural equation modeling, among adult participants Amol, northern Iran. In this cross-sectional study, from 3,149 Amol cohort (55.3% men, n = 1,741) were analyzed. Usual intake was assessed a validated 168-items semiquantitative food...

10.3389/fnut.2022.821544 article EN cc-by Frontiers in Nutrition 2022-03-28

BACKGROUND Differentiation of benign and malignant biliary strictures plays a pivotal role in managing strictures. Brush cytology via endoscopic retrograde cholangiopancreatography (ERCP) ultrasound-guided fine-needle aspiration (EUS-FNA) are two diagnostic methods. In the present study, we aimed to compare accuracy results EUS-FNA ERCP-based sampling METHODS prospective between January 2019 March 2020, patients with indeterminate who had no history hepatobiliary surgery, opium usage, cancer...

10.34172/mejdd.2021.238 article EN cc-by-nc Middle East Journal of Digestive Diseases 2021-06-13

Some recent studies reported an inverse association between obesity and risk of cardiovascular diseases (CVD), heart failure related mortality rate, outcomes myocardial infarction (MI), the consequences events interventions; this was named paradox. The present study conducted with aim to determine whether paradox will be detectable when 10-year CVD is estimated using assessment tools.The data 2910 subjects aged 40-74 years obtained in our cohort that carried out among 6140 Amol, northern...

10.22122/arya.v16i1.1581 article EN PubMed 2020-01-01

Helicobacter Pylori (H. pylori) treatment may be different depending on the host and microbial factors in each region. The study was planned to estimate effect of two 10-day esomeprazole containing clarithromycin levofloxacin sequential therapies H. pylori treatment.Totally, 186 pylori-infected patients with gastro-duodenal ulcer who had not yet received for infection, were enrolled. We randomly designated group A (N = 94) treated 40 mg amoxicillin 1 g bid during early half treatment,...

10.4103/ijp.ijp_719_19 article EN Indian Journal of Pharmacology 2020-01-01

Background & Aims: Irritable Bowel Syndrome (IBS) is one of the most common gastrointestinal disorders that significantly affects patients' quality life. This study aimed to determine effect written expression on severity symptoms in patients with IBS. Materials Methods: clinical trial was conducted 2019 71 IBS who were referred clinics Firoozgar and Rasoul Akram hospitals Tehran, selected using a continuous sampling method based inclusion criteria randomly (permuted block randomization)...

10.32598/ijn.34.5.1 article EN cc-by-nc Iran Journal of Nursing 2022-01-01

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) [COVID-19] quickly turned into a pandemic. Gastrointestinal involvement, especially liver diseases, is one of the main complications COVID-19 patients. Objectives: The current study aimed to evaluate high incidence involvement in hospitalized patients and its association with mortality. Methods: A total 560 confirmed diagnosis were included. Death was considered as outcome. In addition enzymes, demographic, clinical,...

10.5812/hepatmon.109076 article EN Hepatitis Monthly 2020-12-22

Pancreatic duct (PD) dilation could be presented in both benign and malignant diseases. Endoscopic ultrasonography (EUS) is a sensitive modality that provides structural assessment tissue sampling. This study aims to explore the importance of PD as potential indicator related various pancreatobiliary pathologies identified via EUS.

10.34172/mejdd.2024.382 article EN cc-by-nc Middle East Journal of Digestive Diseases 2024-07-31

Due to widespread of coronavirus disease 2019 (COVID-19) infection, identification its risk factors and clinical characteristics are important. The aim the present study was assess Vitamin D levels in individuals with severe acute respiratory syndrome coronavirus-19 infection report on potential as a predictive marker.

10.4103/jrms.jrms_1151_20 article EN cc-by-nc-sa Journal of Research in Medical Sciences 2021-01-01

Globally, most people die from cardiovascular diseases. We aimed to compare predictive ability of six obesity indices, including body mass index, waist circumference, waist-to-hip ratio, waist-to-height conicity and abdominal volume identify at risk fatal non-fatal events, in a cohort study.

10.1016/j.ijcrp.2022.200142 article EN cc-by-nc-nd International Journal of Cardiology Cardiovascular Risk and Prevention 2022-07-01
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