Ryan Choi

ORCID: 0000-0003-4877-6871
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About
Contact & Profiles
Research Areas
  • Whipple's Disease and Interleukins
  • Cardiomyopathy and Myosin Studies
  • Pancreatitis Pathology and Treatment
  • Connective tissue disorders research
  • Surgical Simulation and Training
  • Minimally Invasive Surgical Techniques
  • Orthoptera Research and Taxonomy
  • Anatomy and Medical Technology
  • Neurogenetic and Muscular Disorders Research
  • Aortic aneurysm repair treatments
  • Coagulation, Bradykinin, Polyphosphates, and Angioedema
  • Cardiac electrophysiology and arrhythmias
  • Coronary Interventions and Diagnostics
  • Aortic Disease and Treatment Approaches
  • Reconstructive Surgery and Microvascular Techniques
  • Trace Elements in Health
  • Diagnosis and Treatment of Venous Diseases
  • Muscle Physiology and Disorders
  • Animal Behavior and Reproduction
  • Cardiovascular Effects of Exercise
  • Neurobiology and Insect Physiology Research

Naval Medical Center San Diego
2023-2024

VA Palo Alto Health Care System
2024

Stanford University
2024

Edward Via College of Osteopathic Medicine
2022

Queen Elizabeth Hospital
2014

The University of Adelaide
2014

Andrews University
2011

Distal arthrogryposis type I (DA1) is a disorder characterized by congenital contractures of the hands and feet for which few genes have been identified. Here we describe five-generation family with DA1 segregating as an autosomal dominant complete penetrance. Genome-wide linkage analysis using Affymetrix GeneChip Mapping 10K data from 12 affected members this revealed multipoint LODmax 3.27 on chromosome 12q. Sequencing slow-twitch skeletal muscle myosin binding protein C1 (MYBPC1), located...

10.1093/hmg/ddp587 article EN Human Molecular Genetics 2010-01-02

Nanoinjection of Juvenile Hormone III (JH III) into the prothoracic ganglion causes virgin female crickets Gryllus bimaculatus De Geer to become more phonotactically selective for syllable periods (SPs) model calling songs. Females responding all, or almost SPs presented before JH injection significantly narrow their responses a range that is usually centered on included in conspecific males' song. Control injections acetone (i.e. solvent do not change recipient females' phonotactic...

10.1111/j.1365-3032.2011.00811.x article EN Physiological Entomology 2011-11-14

A phospholamban mutation is a rare genetic cause of dilated cardiomyopathy (DCM). Our case describes young service member who presented with advanced heart failure and was found to have familial DCM from an autosomal dominant mutation. He ultimately underwent successful transplant just 23 days after his initial presentation. This highlights the importance screening surveillance for patients family history DCM, it identifies gap in medical standards military accession.

10.1093/milmed/usae396 article EN Military Medicine 2024-08-23

ABSTRACT Whipple’s Disease (WD) is a rare disease caused by the infection of Tropheryma whipplei. It can lead to immunosuppression and multitude effects on different organ systems, resulting in constellation seemingly unrelated findings. Although treatment may appear straightforward, T. whipplei be difficult eradicate. We present case 36-year-old male with months progressively worsening watery diarrhea, migratory arthralgias, weight loss. He had undergone an extensive evaluation for...

10.1093/milmed/usad246 article EN public-domain Military Medicine 2023-07-26

Introduction: We present an unusual case of ischemic colitis in the setting vaginal estrogen ring and heterozygous prothrombin G20210A mutation. Case Description/Methods: A 25-year-old woman with a history endometriomas recent placement presented acute onset lower abdominal pain hematochezia. Initial hemoglobin was 12.3 g/dL, ferritin 12.11 ng/mL, lactic acid 0.9 mmol/L. Computed tomography her abdomen pelvis intravenous contrast showed transverse proximal descending colonic wall thickening...

10.14309/01.ajg.0000961676.29129.ff article EN The American Journal of Gastroenterology 2023-10-01

Introduction: Wilson disease (WD) is a rare autosomal recessive disorder caused by ATP7B mutation leading increased cellular deposition of copper in multiple organs. Initial presentations WD can range widely from acute liver failure to chronic decompensated cirrhosis and have neurologic manifestations. Including dystonia Parkinson’s disease-like movements. We present case newly diagnosed which presented as recurrent pancreatitis (AP). Case Description/Methods: A 21-year-old previously...

10.14309/01.ajg.0000963596.12342.57 article EN The American Journal of Gastroenterology 2023-10-01

Introduction: Whipple’s Disease (WD) is a rare condition which occurs from infection by Tropheryma whipplei. It debilitating illness and can lead to immunocompromise of the host. We present case patient with WD who also had concomitant esophageal candidiasis H. pylori gastritis. Case Description/Methods: A 36-year-old male presented 3-month history non-bloody diarrhea, nausea, migratory polyarthralgia, weight-loss 30 lbs. EGD colonoscopy were performed. There multiple, diminutive white...

10.14309/01.ajg.0000866788.29335.56 article EN The American Journal of Gastroenterology 2022-10-01
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