Jeffrey Peacock

ORCID: 0000-0002-0725-5925
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About
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Research Areas
  • Helicobacter pylori-related gastroenterology studies
  • Lung Cancer Treatments and Mutations
  • Radiomics and Machine Learning in Medical Imaging
  • Eosinophilic Esophagitis
  • Glioma Diagnosis and Treatment
  • Lung Cancer Diagnosis and Treatment
  • Cancer Genomics and Diagnostics
  • Veterinary medicine and infectious diseases
  • Celiac Disease Research and Management
  • Galectins and Cancer Biology
  • Mathematical Biology Tumor Growth
  • Effects of Radiation Exposure
  • Monoclonal and Polyclonal Antibodies Research
  • Advanced Radiotherapy Techniques
  • Pain Management and Treatment
  • Viral gastroenteritis research and epidemiology
  • Gastrointestinal disorders and treatments
  • Radiation Therapy and Dosimetry
  • Telemedicine and Telehealth Implementation
  • HER2/EGFR in Cancer Research
  • Ovarian cancer diagnosis and treatment
  • Musculoskeletal pain and rehabilitation
  • Prostate Cancer Diagnosis and Treatment
  • Evolutionary Game Theory and Cooperation
  • Cancer Immunotherapy and Biomarkers

University of Alabama at Birmingham
2021-2024

Novant Health
2023

Moffitt Cancer Center
2017-2022

ORCID
2020

University of Central Florida
2016

University of Nottingham
2000

Stony Brook Medicine
2000

Japanese Red Cross Hiroshima College of Nursing
1998

Hiroshima University
1998

Riley Hospital for Children
1998

The diagnostic significance of the serological detection antibodies to Helicobacter pylori has been established by numerous investigators. Reports clinical reliabilities commercial enzyme immunoassay (EIA) kits available for this purpose vary as a result different H. antigen sources and reference methods used. 13C urea breath test (UBT) shown be an extremely accurate reliable method detecting infection. We used confirmatory status evaluate three commercially EIA designed detect...

10.1128/jcm.34.5.1147-1152.1996 article EN Journal of Clinical Microbiology 1996-05-01

Abstract Recurrent high grade glioma patients face a poor prognosis for which no curative treatment option currently exists. In contrast to prescribing dose hypofractionated stereotactic radiotherapy (HFSRT, $$\ge 6$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>≥</mml:mo> <mml:mn>6</mml:mn> </mml:mrow> </mml:math> Gy $$\times$$ <mml:mo>×</mml:mo> 5 in daily fractions) with debulking intent, we suggest personalized strategy improve tumor control by delivering...

10.1038/s41598-021-99507-2 article EN cc-by Scientific Reports 2021-10-12

ABSTRACT It has been suggested that enzyme immunoassay (EIA) kits validated in one region may yield variable diagnostic performance results different regions, possibly due to strain-specific differences antibody responses populations. We tested 13 C-urea breath test-characterized serum samples from 109 U.S. patients and 288 Japanese using with preparations of high-molecular-weight cell-associated (HM-CAP) antigens are conserved across Helicobacter pylori strains. Replicate were prepared five...

10.1128/jcm.41.4.1480-1485.2003 article EN Journal of Clinical Microbiology 2003-04-01

Abstract To investigate the functional significance of epidermal growth factor (EGF) receptor phosphorylation, experimental systems were explored in which phosphorylation on tyrosine and serine/threonine could be differentially stimulated. Exposure A431 cells to 20 nM EGF at 37°C results serine, threonine, sites receptor. Monoclonal antibody (mAb) 225 binds with affinity comparable competes binding EGF. presence 300 anti‐EGF mAb (15‐fold excess) selectively activated serine threonine...

10.1002/jcp.1041420210 article EN Journal of Cellular Physiology 1990-02-01

OBJECTIVES: The purpose of this study was to determine the prevalence serum antibodies directed against Helicobacter pylori (H. pylori) in children referred children's hospitals or medical centers throughout United States. METHODS: This multisite cross-sectional prospective involved 992 from 12 states using a validated anti–H. IgG enzyme immunoassay. were recruited into two groups: those without any GI complaints (non–GI referral, n = 619) and who for endoscopy because abdominal pain (GI...

10.1111/j.1572-0241.2003.07683.x article EN The American Journal of Gastroenterology 2003-10-01

OBJECTIVE: Prior studies have suggested that IgG antibody titers may be useful to confirm successful treatment of Helicobacter pylori (H. pylori) infection. However, the diagnostic value decreasing is limited by necessity perform pre and posttreatment tests in parallel which requires stored sera. Our objective was assess accuracy using HM-CAP EIA kit (Enteric Products) monitoring H. infection compare relative versus serial determinations. METHODS: The 14C urea breath test (UBT) used 83...

10.1111/j.1572-0241.1999.01285.x article EN The American Journal of Gastroenterology 1999-08-01

Summary Aim : To assess the decline in Helicobacter pylori antibodies after eradication of infection. Methods The H. status was determined at entry (D0) by culture and histology performed on antral biopsies treatment day 42 (day 42) 6 months (M6) 13 C‐urea breath test. EIA kits used to determine anti‐ antibody titre were HM‐CAP (immunoglobulin‐G) PP‐CAP (immunoglobulin‐A) (Enteric Products, Inc.) Pyloriset EIA‐G (Orion Diagnostica). Results Ninety‐three patients included. For 82 who...

10.1046/j.1365-2036.2003.01716.x article EN Alimentary Pharmacology & Therapeutics 2003-09-01

ABSTRACT The prevalence of Helicobacter pylori infection in a population-based sample 477 children (mean age ± standard deviation, 5.8 0.5 years) determined by the [ 13 C]urea breath test ([ C]UBT) was 10.7% (95% confidence interval [CI], 8.1 to 13.8%), and that salivary enzyme-linked immunosorbent assay (ELISA) 11.9% CI, 9.2 15.2%). Compared C]UBT, sensitivity specificity ELISA were 80.9% 66.3 90.4%) 95.3% 92.7 97.1%), respectively.

10.1128/cdli.9.2.493-495.2002 article EN Clinical and Vaccine Immunology 2002-03-01

Abstract Background. Enzyme linked immunosorbent assay (ELISA) evaluation of oral fluid immunoglobulin G (IgG) antibodies to Helicobacter pylori is a unique approach for both epidemiological studies and the diagnosis infection, especially in children. The use sampling evaluate specific H. IgG has advantages over serum, including reduced biohazard risk noninvasive collection. Oral fast involves minimal patient discomfort. Since children facilitate transmission simple, accurate, diagnostic...

10.1046/j.1083-4389.2002.00062.x article EN Helicobacter 2002-04-01

The direct immunofluorescence technique using monoclonal antitoxoplasma antibodies was used to detect Toxoplasma organisms in 13 brain touch preparations and six smears of cerebrospinal fluid. For comparison, Giemsa-stained histologic sections the same cases were also studied. Positive results obtained from two acquired immunodeficiency syndrome (AIDS) with all three methods. cysts, pseudocysts, tachyzoites easily identified by technique, no false-positive encountered nine AIDS different...

10.1097/00000478-198605000-00002 article EN The American Journal of Surgical Pathology 1986-05-01

Heterogeneity in strategies for survival and proliferation among the cells which constitute a tumour is driving force behind evolution of resistance to cancer therapy. The rules mapping tumour’s strategy distribution fitness individual can be represented as an evolutionary game. We develop game assay measure effective games co-cultures non-small cell lung are sensitive resistant anaplastic lymphoma kinase inhibitor Alectinib. not only quantitatively different between environments, but...

10.1101/179259 preprint EN cc-by-nc bioRxiv (Cold Spring Harbor Laboratory) 2017-08-21

OBJECTIVES: To determine the test characteristics of gastric-juice ammonia concentration as measured by an ion-selective electrode and a rapid detection device for diagnosis Helicobacter pylori infection to assess relationship between severity gastritis. METHODS: Patients undergoing upper endoscopy had collection gastric juice that was tested using assay uses pH-indicating membrane. A receiver operating characteristic curve calculated concentration. Severity gastritis graded Sydney...

10.1111/j.1572-0241.2000.03351.x article EN The American Journal of Gastroenterology 2000-12-01

Internalization of epidermal growth factor (EGF) receptors by human A431 epidermoid carcinoma cells was studied at various culture densities. The extent EGF receptor internalization measured quantitation internalized 125I-EGF during incubation 37°C for 30 min. When cell density below 1×105 cells/cm2 active; 30-40% excess moles ligand over the surface were this period. However, when increased to above 1.5×105 cells/cm became less extensive, as only 30-50% bound underwent min incubation. In...

10.3109/08977199109000270 article EN Growth Factors 1991-01-01

ABSTRACT Studies are difficult in areas lacking modern facilities due to the inability reliably collect, store, and ship samples. Thus, we sought evaluate use of a dry plasma collection device for seroepidemiology studies. Plasma was obtained by fingerstick using commercial (Chemcard Collection Device) serum (venipuncture) from individuals Kazakhstan. samples were air dried 15 min then stored desiccated foil zip-lock pouches at 4 6°C subsequently shipped United States ambient temperature....

10.1128/cdli.7.6.882-884.2000 article EN Clinical and Diagnostic Laboratory Immunology 2000-11-01
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