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Cyclooxygenase-2 and epithelial growth factor receptor up-regulation during progression of Barrett's esophagus to adenocarcinoma

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World Journal of Gastroenterology 2006年第6期12卷 928-934页

作者： Yan Li John M Wo Mukunda B Ray whitney jones Ruifeng R Su Susan Ellis Robert C G Martin Division of Surgical Oncology University of Louisville School ofMedicine Louisville KY 40202 United States Division of Gastroenterology/Hepatology University of Louisville School of MedicineLouisville KY 40202 United States Department of Anatomical Pathology University of Louisville School of Medicine Louisville KY40202 United States

AIM： To investigate the expression of cyclooxygenase-2 （COX-2） and epithelial growth factor receptor （EGFR） throughout the progression of Barrett＇s esophagus （BE）. METHODS： COX-2 and EGFR protein expressions were detected by using immunohistochemical method. A detailed cytomorphological changes were determined. Areas of COX-2 and EGFR expression were quantified by using computer Imaging System. RESULTS： The expressions of both COX-2 and EGFR increased along with the progression from BE to esophagus adenocarcinoma （EAC）. A positive correlation was found between COX-2 expression and EGFR expression. CONCLUSION： COX-2 and EGFR may be cooperative in the stepwise progression from BE to EAC, thereby leading to carcinogenesis.

关键词： Cycloxygenase -2 (COX-2) Epithelial growth factor receptor (EGFR) Barrett's esophagus Carcinogenesis

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Locomotor analysis identifies early compensatory changes during disease progression and subgroup classification in a mouse model of amyotrophic lateral sclerosis

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Neural Regeneration Research 2017年第10期12卷 1664-1679页

作者： Melissa M.Haulcomb Rena M.Meadows whitney M.Miller Kathryn P.Mc Millan Me Kenzie J.Hilsmeyer Xuefu Wang Wesley T.Beaulieu Stephanie L.Dickinson Todd J.Brown Virginia M.Sanders Kathryn J.jones Department of Anatomy and Cell Biology Indiana University School of MedicineIndianapolisINUSA Research and Development Service Roudebush Veterans Administration Medical CenterIndianapolisINUSA Program in Medical Neurosciences Indiana University School of MedicineIndianapolisINUSA Department of Statistics Indiana UniversityBloomingtonINUSA Department of Epidemiology and Biostatistics Indiana UniversityBloomingtonINUSA Department of Cancer Biology and Genetics The Ohio State University Wexner Medical CenterColumbusOHUSA

Amyotrophic lateral sclerosis is a motoneuron degenerative disease that is challenging to diagnose and presents with considerable variability in *** identification and enhanced understanding of symptomatic patterns could aid in diagnosis and provide an avenue for monitoring disease *** of the m SOD1 G93 A mouse model provides control of the confounding environmental factors and genetic heterogeneity seen in amyotrophic lateral sclerosis patients,while investigating underlying disease-induced *** the present study,we performed a longitudinal behavioral assessment paradigm and identified an early hindlimb symptom,resembling the common gait abnormality foot drop,along with an accompanying forelimb compensatory mechanism in the m SOD1 G93 A *** these initial changes,m SOD1 mice displayed a temporary hindlimb compensatory mechanism resembling an exaggerated steppage *** the disease progressed,these compensatory mechanisms were not sufficient to sustain fundamental locomotor parameters and more severe deficits *** next applied these initial findings to investigate the inherent variability in B6 SJL m SOD1 G93 A *** identified four behavioral variables that,when combined in a cluster analysis,identified two subpopulations with different disease progression rates：a fast progression group and a slow progression *** behavioral assessment paradigm,with its analytical approaches,provides a method for monitoring disease progression and detecting m SOD1 subgroups with different disease *** affords researchers an opportunity to search for genetic modifiers or other factors that likely enhance or slow disease *** factors are possible therapeutic targets with the potential to slow disease progression and provide insight into the underlying pathology and disease mechanisms.

关键词： nerve regeneration amyotrophic lateral sclerosis motoneuron degenerative disease locomotor disease progression disease variability SOD1 mouse neural regeneration

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Burn recidivism:a 10-year retrospective study characterizing patients with repeated burn injuries at a large tertiary referral burn center in the United States

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Burns & Trauma 2019年第1期7卷 75-84页

作者： Sarah L.Laughon Bradley N.Gaynes Lori P.Chrisco Samuel W.jones Felicia N.Williams Bruce A.Cairns Gary J.Gala Department of Psychiatry 101 Manning DriveCB#7160Chapel HillNC 27599-7160USA Department of Surgery 4001 Burnett-Womack BuildingCB#7050Chapel HillNC 27599-7050USA North Carolina Jaycee Burn Center 101 Manning DriveCB#7206Chapel HillNC 27599-7600USA

Background:Psychiatric and substance use disorders are common among trauma and burn patients and are known risk factors for repeat episodes of trauma,known as trauma *** epidemiology of burn recidivism,specifically,has not been *** study aimed to characterize cases of burn recidivism at a large US tertiary care burn center and compare burn recidivists(RCs)with non-recidivists(NRCs).Methods:A 10-year retrospective descriptive cohort study of adult burn patients admitted to the North Carolina Jaycee Burn Center was conducted using data from an electronic burn registry and the medical *** variables were reported using medians and interquartile ranges(IQR).Chi-square and Wilcoxon-Mann-whitney tests were used to compare demographic,burn,and hospitalization characteristics between NRCs and ***:A total of 7134 burn patients were admitted,among which 51(0.7%)were RCs and accounted for 129(1.8%)*** the 51 RCs,37 had two burn injuries each,totaling 74 admissions as a group,while the remaining 14 RCs had between three and eight burn injuries each,totaling 55 admissions as a *** to NRCs,RCs were younger(median age 36 years vs.42 years,p=0.02)and more likely to be white(75%vs.60%,p=0.03),uninsured(45%vs.30%,p=0.02),have chemical burns(16%vs.5%,p<0.0001),and have burns that were≤10%total body surface area(89%vs.76%,p=0.001).The mortality rate for RCs *** did not differ(0%vs.1.2%,p=0.41).Psychiatric and substance use disorders were approximately five times greater among RCs compared to NRCs(75%vs.15%,p<0.001).Median total hospital charges per patient were nearly three times higher for RCs ***($85,736 vs.$32,023,p<0.0001).Conclusions:Distinct from trauma recidivism,burn recidivism is not associated with more severe injury or increased *** to trauma recidivists,but to a greater extent,burn RCs have high rates of comorbid psychiatric and medical conditions that contribute to increased health care u

关键词： Burn recidivism Consult psychiatry Substance use disorder Repeat burn injury

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