Michael de Vera

ORCID: 0000-0003-1477-8932
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About
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Research Areas
  • Organ Transplantation Techniques and Outcomes
  • Renal Transplantation Outcomes and Treatments
  • Liver Disease and Transplantation
  • Cytomegalovirus and herpesvirus research
  • Organ Donation and Transplantation
  • Renal and Vascular Pathologies
  • Liver Disease Diagnosis and Treatment
  • Neurological Complications and Syndromes
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Cannabis and Cannabinoid Research
  • Liver Diseases and Immunity
  • T-cell and B-cell Immunology
  • Nitric Oxide and Endothelin Effects
  • Polyomavirus and related diseases
  • Antifungal resistance and susceptibility
  • Viral-associated cancers and disorders
  • Fungal Infections and Studies
  • Cellular transport and secretion
  • Bipolar Disorder and Treatment
  • Neutropenia and Cancer Infections
  • Fungal and yeast genetics research
  • Cancer, Lipids, and Metabolism
  • Immune Cell Function and Interaction
  • Pharmacological Effects and Toxicity Studies
  • Organ and Tissue Transplantation Research

Loma Linda University
2012-2025

Loma Linda University Medical Center
2012-2021

Miami Transplant Institute
2018

Duquesne University
2016

University of Pittsburgh
1998-2012

H.C. Starck (Germany)
2012

UPMC Health System
2012

UPMC Montefiore
2010

UPMC Hillman Cancer Center
2010

University of Pittsburgh Medical Center
2004-2008

We reviewed the cases of patients with cirrhosis, including liver transplant candidates, at our institution in last 3 years (n = 5) and those individually described literature 28), to assess unique characteristics outcome cryptococcosis these patients. Sixty-four percent (21/33) had no other recognized immunosuppression. Peritonitis (in 45%, 15/33 patients) modest pleocytosis ascitic fluid, was most common presenting feature. Median time detection Cryptococcus fluid cultures 6 days. Overall...

10.1097/01.md.0000126760.45299.69 article EN Medicine 2004-04-29

Abstract: Rabbit anti‐thymocyte globulin (ATG) and alemtuzumab have been used for induction or preconditioning the treatment of acute rejection in organ transplant recipients many centers. Such regimens may lead to a substantial decline CD4 lymphocyte count levels seen other population groups at high risk cryptococcosis. In view this, we examined impact such therapy on cumulative incidence cryptococcosis among liver kidney recipients. A total 834 727 transplants were performed during study...

10.1111/j.1399-3062.2006.00149.x article EN Transplant Infectious Disease 2007-02-21

To assess the presence of Helicobacter DNA in gastric mucosa Thoroughbred horses.Squamous and glandular samples were collected from 20 Thoroughbreds. None these horses had shown any clinical symptoms gastrointestinal disease. Necropsy tissues analysed using histopathological techniques a genus-specific PCR assay followed by sequencing amplicons. Seven diagnosed with ulceration, five gastritis six both pathologies. Only two healthy mucosa. Helicobacter-like was detected out seven ulcers,...

10.1111/j.1472-765x.2007.02227.x article EN Letters in Applied Microbiology 2007-10-03

Context-Little is known about patients' contribution to health outcomes after liver transplantation.Yet, in other transplant recipients, nonadherent behavior directly related the leading causes of morbidity and mortality recipients.Objective-To examine patient environmental factors relation all aspects adherence posttransplantation regimen first 6 months transplantation.Design-A descriptive analysis individual at transplantation.Participants, Setting-One hundred fifty-two adult recipients...

10.7182/prtr.20.1.c903845857104k83 article EN Progress in Transplantation 2010-03-01

Calcineurin-inhibiting immunosuppressive medications are the mainstay of posttransplant immunosuppression. Although these highly beneficial drugs critical for survival, significant numbers transplant recipients experience side effects, some requiring a switch to different regimen. Neurotoxicity is one most debilitating effects because its impact on mental status and cognition. As our center uses tacrolimus as initial immunosuppressant all liver (LTX) recipients, we were interested in those...

10.1002/lt.21427 article EN Liver Transplantation 2008-01-01

Posttransplant lymphoproliferative disorder (PTLD) is a well-established complication of immunosuppression. The involvement the gastrointestinal (GI) tract occurs in 25% all cases PTLD. Fortunately, surgical intervention seldom required. We report our experience treatment complicated GI-PTLD after liver transplantation (LTx).A retrospective analysis 5677 adult patients who underwent LTx between 1983 and 2009 was conducted.Thirty-six presented with GI-PTLD. Sixteen complications associated...

10.1097/tp.0b013e3182584854 article EN Transplantation 2012-07-20

This study determines whether the recipient and donor characteristics that influence cytomegalovirus (CMV) infection rate after liver transplantation have changed.The may affect of CMV were assessed in 232 transplant recipients at our institution during a 14-year period (1989-2003).Since 1989, age (P=0.0001) donors has increased significantly. Pretransplant seropositivity decreased significantly (P=0.0001, 86.4% [1989-1992] to 53.7% [2000-2003]), whereas remained unchanged (P>0.20). As...

10.1097/01.tp.0000101289.80832.37 article EN Transplantation 2004-01-15

The use of marijuana in the USA has been steadily increasing over last 10 years. This study is first to investigate effect by live kidney donors upon outcomes both and recipients.

10.1093/ckj/sfy107 article EN cc-by-nc Clinical Kidney Journal 2018-10-17

Abstract The purpose of this study is to compare the outcome pediatric recipients kidneys procured using a hand‐assisted laparoscopic ( HALDN group) an open technique ODN group). Twenty‐eight patients ≤18 yr old were compared with 17 serum creatinine for and groups at discharge 0.93 ± 0.48 0.94 0.54 mg/ dL (p = 0.917), respectively. six 12 months was 1.01 0.44 1.11 0.55, 1.04 0.52 1.14 0.46 0.516, p 0.554), eGFR 108.66 37.23 106.1 50.55 mL/min/1.73 m 2 0.845), 97.77 28.25 81.73 27.46, 94.56...

10.1111/petr.12082 article EN Pediatric Transplantation 2013-04-16

Coexisting coronary artery disease (CAD), end-stage liver (ESLD), renal failure, and hypercoagulable state poses a formidable clinical challenge. Here, we discuss the first known case of patient with antiphospholipid syndrome (APLS), ESLD complicated by hepatorenal (HRS), severe CAD who successfully underwent combined bypass grafting (CABG) simultaneous liver/kidney (SLK) transplant.

10.1111/ajt.17067 article EN cc-by-nc-nd American Journal of Transplantation 2022-04-22

Introduction: Volume of renal parenchymal loss is known to affect postoperative function after partial nephrectomy (PN). We utilize a novel comparison using donor (DN) patients demonstrate the primary effect volume plays on following PN. Materials and Methods: Records 250 living 118 PN were retrospectively reviewed. Baseline characteristics preoperative estimated glomerular filtration rate (eGFR)s recorded. Percent changes in eGFR incidences surgically induced chronic kidney disease (CKD-S)...

10.1089/end.2018.0654 article EN Journal of Endourology 2019-03-06

You have accessJournal of UrologyTransplantation & Vascular Surgery: Renal Transplantation Surgery II1 Apr 2017MP30-08 DOES MARIJUANA INTAKE AFFECT OUTCOMES IN LIVING RENAL DONORS AND THEIR RECIPIENTS? David Ruckle, Mohamed Keheila, Benjamin West, Braden Mattison, Jerry Thomas, Samuel Abourbih, Michael De Vera, Arputharaj Kore, Pedro Baron, and D. Duane Baldwin RuckleDavid Ruckle More articles by this author , KeheilaMohamed Keheila WestBenjamin West MattisonBraden Mattison ThomasJerry...

10.1016/j.juro.2017.02.941 article EN The Journal of Urology 2017-04-01

123 Nitric oxide (NO) is a potent immunomodulator which has diverse roles during infection, inflammation, and solid organ transplant rejection. Previously, we have shown that combination of cytokines stimulate human inducible NO synthase (iNOS) expression, however, almost nothing known about the specific cytokine-activated nuclear factors control iNOS gene transcription. To determine molecular mechanisms transcription regulating expression gene, cloned sequenced 7.2 kilobases (kb) gene's...

10.1097/00007890-199805131-00123 article EN Transplantation 1998-05-01

The purpose of this study is to compare the diagnostic performance Sassone scoring system, IOTA LR1 and LR2 in differentiating benign from malignant ovarian masses. This was a retrospective cohort single-centre 54 women who presented with an adnexal mass at time ultrasound. ultrasound images videos were examined classified using logistic regression model 1 2; individually by expert examiner, fellow resident. findings then compared histological outcome lesion. Sixty masses included, which 12%...

10.1002/uog.14975 article EN Ultrasound in Obstetrics and Gynecology 2015-09-01

New-onset diabetes after kidney transplant (NODAT) significantly increases acute rejection, graft loss and mortality. Several risk factors for NODAT have been reported including: older age, obesity, hepatitis C infection, Hispanic or African American ethnicity, use of calcineurin inhibitors corticosteroids. The incidence impact in the population is unknown. PATIENTS METHODS: We retrospectively reviewed 155 Hispanics 125 Caucasian patients who were not diabetics underwent a first between...

10.1097/00007890-201407151-01764 article EN Transplantation 2014-07-01
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