432 results match your criteria: "Chosun University School of Medicine[Affiliation]"
Behav Brain Res
September 2016
Chonnam-Bristol Frontier Laboratory, Biomedical Research Institute, Chonnam National University Hospital, Gwangju, 61469, Republic of Korea; Department of Neurology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea; Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea. Electronic address:
Dysfunctions in the perirhinal cortex (PRh) are associated with visual recognition memory deficit, which is frequently detected in the early stage of Alzheimer's disease. Muscarinic acetylcholine receptor-dependent long-term depression (mAChR-LTD) of synaptic transmission is known as a key pathway in eliciting this type of memory, and Tg2576 mice expressing enhanced levels of Aβ oligomers are found to have impaired mAChR-LTD in this brain area at as early as 3 months of age. We found that the administration of Aβ oligomers in young normal mice also induced visual recognition memory impairment and perturbed mAChR-LTD in mouse PRh slices.
View Article and Find Full Text PDFInt J Pediatr Otorhinolaryngol
June 2016
Department of Otolaryngology-Head and Neck Surgery, Chosun University School of Medicine, Gwangju, South Korea. Electronic address:
Objective: Aural irrigation using antiseptic solutions can be an effective medical treatment of chronic suppurative otitis media (CSOM) owing to the increasing prevalence of antibiotic-resistant CSOM infections. In the present study, we compared the antimicrobial activities of 100% Burow's solution, 50% Burow's solution, 2% acetic acid, vinegar with water (1:1), and 4% boric acid solution against methicillin-resistant Staphylococcus aureus (MRSA), methicillin-susceptible S. aureus (MSSA), quinolone-resistant Pseudomonas aeruginosa (QRPA), and quinolone-susceptible P.
View Article and Find Full Text PDFAm J Med Sci
May 2016
Department of Biochemistry and Molecular Biology, Chosun University School of Medicine, Dong-Gu, Gwangju, South Korea.
Background: The preprocedural neutrophil-lymphocyte ratio (NLR) is related to adverse outcomes in patients with coronary artery disease. We hypothesized that high NLR is a predictor of cardiac death after percutaneous coronary intervention (PCI). The objective of this investigation was to assess the associations of NLR, high-sensitivity cardiac troponin T (hs-cTnT) and N-terminal pro-B type natriuretic peptide (NT-proBNP) with the occurrence of cardiac death after PCI.
View Article and Find Full Text PDFOncogenesis
May 2016
Department of Animal Biotechnology, College of Animal Bioscience and technology/Animal Resources Research Center, Konkuk University, Seoul, Korea.
MUDENG (Mu-2-related death-inducing gene, MuD) is revealed to be involved in cell death signaling. Astrocytes, the major glial cell type in the central nervous system, are a source of brain tumors. In this study, we examined MuD expression and function in human astroglioma cells.
View Article and Find Full Text PDFGeriatr Gerontol Int
May 2016
Department of Neurology, Chosun University School of Medicine and Hospital, Gwangju, Korea.
Diabetes Metab J
June 2016
Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea.
Background: We compared the efficacies of vildagliptin (50 mg twice daily) relative to pioglitazone (15 mg once daily) as an add-on treatment to metformin for reducing glycosylated hemoglobin (HbA1c) levels in Korean patients with type 2 diabetes.
Methods: The present study was a multicenter, randomized, active-controlled investigation comparing the effects of vildagliptin and pioglitazone in Korean patients receiving a stable dose of metformin but exhibiting inadequate glycemic control. Each patient underwent a 16-week treatment period with either vildagliptin or pioglitazone as an add-on treatment to metformin.
Oncotarget
May 2016
Department of Biochemistry, Chosun University School of Medicine, Dong-Gu, Gwang-Ju, Korea.
The therapeutic efficacy of most anti-cancer drugs depends on their apoptosis-inducing abilities. Previously, we showed that a peptide containing the mitochondrial targeting domain (MTD) found in Noxa, a BH-3 only protein of Bcl-2 family, induces necrosis. Here, a fusion peptide of neuropilin-1 (NRP-1) targeting peptide and MTD peptide, designated tumor homing motif 17:MTD (TU17:MTD), was found to induce necrosis in cancer cells in vitro and to cause the regression of tumors when intravenously injected into mice bearing subcutaneous CT26 colorectal carcinoma tumors.
View Article and Find Full Text PDFInt J Stroke
December 2016
Department of Neurology, Chosun University School of Medicine, GwangJu, Republic of Korea.
Background: The histologic features of thrombus may differ according to the stroke subtypes. However, in acute reperfusion therapy, fibrin-specific thrombolytics are used based on the assumption that all thrombi are alike.
Aims: The histologic characteristics of thrombi were compared between patients with different stroke etiologies.
J Microbiol
April 2016
Department of Cellular and Molecular Medicine, Chosun University School of Medicine, Gwangju, 501-759, Republic of Korea.
2-deoxyribose-5-phosphate aldolase (DERA) is a class I aldolase that catalyzes aldol condensation of two aldehydes in the active site, which is particularly germane in drug manufacture. Structural and biochemical studies have shown that the active site of DERA is typically loosely packed and displays broader substrate specificity despite sharing conserved folding architecture with other aldolases. The most distinctive structural feature of DERA compared to other aldolases is short and flexible C-terminal region.
View Article and Find Full Text PDFOncogene
September 2016
School of Pharmacy, Chung-Ang University, Seoul, Korea.
The expression of immediate early response 3 (IER3), a protein with a short half-life, is rapidly induced by various cellular stimuli. We recently reported that IER3 induces the apoptosis of cervical cancer cells and that its expression is downregulated in patients with cervical cancer. However, the molecular mechanism involved in the rapid degradation of IER3 remains unknown.
View Article and Find Full Text PDFArch Biochem Biophys
April 2016
School of Applied Biosciences, Kyungpook National University, Daegu, 41566, South Korea. Electronic address:
Thermophilic l-arabinose isomerase (AI), which catalyzes the interconversion of l-arabinose and l-ribulose, can be used to produce d-tagatose, a sugar substitute, from d-galactose. Unlike mesophilic AIs, thermophilic AIs are highly dependent on divalent metal ions for their catalytic activity and thermostability at elevated temperatures. However, the molecular basis underlying the substrate preferences and metal requirements of multimeric AIs remains unclear.
View Article and Find Full Text PDFKorean J Thorac Cardiovasc Surg
February 2016
Department of Internal Medicine, Chosun University Hospital, Chosun University School of Medicine.
Nodular fasciitis is a benign reactive proliferation that usually involves the deep fascia. Although it is relatively common in the adult population, it is often misdiagnosed as sarcoma due to its rapid growth and pathological features. It rarely presents as a chest wall tumor in young patients.
View Article and Find Full Text PDFArch Plast Surg
January 2016
Department of Plastic and Reconstructive Surgery, Chosun University School of Medicine, Gwangju, Korea.
Endocrinol Metab (Seoul)
December 2015
Department of Endocrinology and Metabolism, Chosun University Hospital, Chosun University School of Medicine, Gwangju, Korea.
Pediatr Gastroenterol Hepatol Nutr
December 2015
Department of Pediatrics, Chosun University School of Medicine, Gwangju, Korea.
Ulcerative colitis (UC) is a chronic idiopathic inflammatory bowel disease. Mesalizine for the first-line therapy of UC has adverse effects include pancreatitis, pneumonia and pericarditis. UC complicated by two coexisting conditions, however, is very rare.
View Article and Find Full Text PDFInt J Stroke
June 2016
Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
Rationale And Aim: The antiplatelet effect of clopidogrel is reportedly influenced by cytochrome P450 2C19 (CYP2C19) polymorphisms. However, there is no data concerning the relationship between stroke recurrence and CYP2C19 polymorphisms in patients treated with clopidogrel for secondary prevention of ischemic stroke. Triflusal may be an alternative therapy for clopidogrel in patients with poor genotype.
View Article and Find Full Text PDFKorean J Urol
December 2015
Department of Urology, Chosun University Hospital, Chosun University School of Medicine, Gwangju, Korea.
Purpose: We aimed to analyze the characteristics of urinary retention (UR) in female inpatients managed with medical treatments.
Materials And Methods: We retrospectively analyzed the medical records of female inpatients referred to the department of urology for UR at our institution from January 2009, to December 2014. UR was defined as a difficulty in self-voiding despite a sufficient urine volume or >300-mL postvoid residual.
BMB Rep
May 2016
Departments of Biochemistry, Chosun University School of Medicine, Gwangju 61452, Korea.
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a homo-trimeric cytotoxic ligand. Several studies have demonstrated that incorporation of artificial trimerization motifs into the TRAIL protein leads to the enhancement of biological activity. Here, we show that linkage of the isoleucine zipper hexamerization motif to the N-terminus of TRAIL, referred as ILz(6):TRAIL, leads to multimerization of its trimeric form, which has higher cytotoxic activity compared to its native state.
View Article and Find Full Text PDFArch Craniofac Surg
December 2015
Department of Plastic and Reconstructive Surgery, Chosun University School of Medicine, Gwangju, Korea.
In this report, we present a scalp defect reconstruction with lateral arm free flap. We highlight the difficulty in obtaining a recipient vein and the venous drainage managed through an open end of the donor vein. A 52-year-old woman presented with a pressure sore on the left scalp.
View Article and Find Full Text PDFBiochem Biophys Res Commun
December 2015
School of Applied Biosciences, Kyungpook National University, Daegu 702-701, South Korea. Electronic address:
Comparative genomics of the keratin-degrading extremophilic eubacterium Fervidobacterium islandicum AW-1 and the closely related Fervidobacterium nodosum with no keratinolytic activity suggested that the FIAW1_1600 gene encoding a carboxypeptidase (CP) plays an important role in keratin degradation. The presumptive 489 amino acid sequence of the gene showed a conserved HEXXH motif with low levels of sequence identity (<38%) to reported thermostable M32 CPs. To identify its functional role, the FIAW1_1600 gene was overexpressed in Escherichia coli, and the recombinant enzyme was purified and characterized in detail.
View Article and Find Full Text PDFKorean J Intern Med
November 2015
Department of Internal Medicine, Soonchunhyang University Hospital, Seoul, Korea.
Background/aims: Gout is a common inf lammatory arthritis triggered by the crystallization of uric acid in the joints. Serum uric acid levels are highly heritable, suggesting a strong genetic component. Independent studies to confirm the genetic associations with gout in various ethnic populations are warranted.
View Article and Find Full Text PDFStroke
December 2015
From the Calgary Stroke Program, Department of Clinical Neurosciences (C.D.d'E., S.H.A., P.P., M.N., P.M., P.D., M.D.H., A.M.D., T.T.S., M.G., B.K.M.), Department of Radiology (C.D.d'E., R.F., M.D.H., A.M.D., N.D.F., M.G., T.Y.L., B.K.M.), Department of Community Health Sciences (P.P., M.D.H., T.T.S., B.K.M.), and Biomedical Engineering Graduate Program (M.E.B., R.F.), University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, Calgary, Alberta, Canada (R.F., M.D.H., A.M.D., N.D.F., M.G., B.K.M.); Seaman Family MR Research Centre, Foothills Medical Centre, Calgary, Alberta, Canada (C.D.d'E., M.E.B., S.H.A., M.N., R.F., M.D.H., A.M.D., M.G., B.K.M.); Department of Neurology, Chosun University School of Medicine, Gwang Ju, South Korea (S.H.A.); Department of Neurosciences and Rehabilitation, University Hospital, Ferrara, Italy (E.F.); Department of Neurology, Hospital Vall d'Hebron, Ps. Vall d'Hebron, Barcelona, Spain (M.R.); Lawson Health Research Institute and Robarts Research Institute, London, Ontario, Canada (T.Y.L.); Department of Clinical Neurosciences, University of Western Ontario, London, Ontario, Canada (A.V.K.); and Department of Neurosciences, University Hospital, Modena, Italy (A.Z.).
Background And Purpose: Among patients with acute ischemic stroke, we determine computed tomographic perfusion (CTP) thresholds associated with follow-up infarction at different stroke onset-to-CTP and CTP-to-reperfusion times.
Methods: Acute ischemic stroke patients with occlusion on computed tomographic angiography were acutely imaged with CTP. Noncontrast computed tomography and magnectic resonance diffusion-weighted imaging between 24 and 48 hours were used to delineate follow-up infarction.
Ann Dermatol
October 2015
Departments of Laboratory Medicine, Chosun University School of Medicine, Gwangju, Korea.
J Pathol Transl Med
March 2016
Department of Pathology, Chosun University School of Medicine, Gwangju, Korea.
Ovarian clear cell adenocarcinomas (CCACs) are frequently associated with endometriosis and, less often with clear cell adenofibromas (CCAFs). We encountered a case of ovarian CCAC arising from benign and borderline adenofibromas of the clear cell and endometrioid types with endometriosis in a 53-year-old woman. Regions of the adenofibromas showed transformation to CCAC and regions of the endometriosis showed atypical endometriotic cysts.
View Article and Find Full Text PDFKorean J Anesthesiol
October 2015
Department of Anesthesiology and Pain Medicine, Chosun University Hospital, Gwangju, Korea.
Background: The Mega Acer Kit® (MAK) is a newly designed heated and humidified breathing circuit that warms fluid passing through the circuit lumen. In this study, we investigated the system's efficacy for the perioperative prevention of hypothermia and fluid warming.
Methods: Ninety patients undergoing spinal surgery were enrolled in this study and randomly assigned to 3 groups based on the fluid warming device used: no fluid warming system (Group C, n = 30), via a Standard Ranger (Group R, n = 30), or via the MAK (Group M, n = 30).