Abstract:
:This study investigated whether tempol, an anti-oxidant, protects against renal injury by modulating phosphatidylinositol 3-kinase (PI3K)-Akt-Forkhead homeobox O (FoxO) signaling. Mice received unilateral ureteral obstruction (UUO) surgery with or without administration of tempol. We evaluated renal damage, oxidative stress and the expression of PI3K, Akt, FoxO3a and their target molecules including manganese superoxide dismutase (MnSOD), catalase, Bax, and Bcl-2 on day 3 and day 7 after UUO. Tubulointerstitial fibrosis, collagen deposition, α-smooth muscle actin-positive area, and F4/80-positive macrophage infiltration were significantly lower in tempol-treated mice compared with control mice. The expression of PI3K, phosphorylated Akt, and phosphorylated FoxO3a markedly decreased in tempol-treated mice compared with control mice. Tempol prominently increased the expressions of MnSOD and catalase, and decreased the production of hydrogen peroxide and lipid peroxidation in the obstructed kidneys. Significantly less apoptosis, a lower ratio of Bax to Bcl-2 expression and fewer apoptotic cells in TUNEL staining, and decreased expression of transforming growth factor-β1 were observed in the obstructed kidneys from tempol-treated mice compared with those from control mice. Tempol attenuates oxidative stress, inflammation, and fibrosis in the obstructed kidneys of UUO mice, and the modulation of PI3K-Akt-FoxO3a signaling may be involved in this pathogenesis.
journal_name
J Korean Med Scijournal_title
Journal of Korean medical scienceauthors
Yoon HE,Kim SJ,Kim SJ,Chung S,Shin SJdoi
10.3346/jkms.2014.29.2.230subject
Has Abstractpub_date
2014-02-01 00:00:00pages
230-7issue
2eissn
1011-8934issn
1598-6357journal_volume
29pub_type
杂志文章abstract:BACKGROUND:We purposed to evaluate the seasonality and associated factors of the incidence of gout attacks in Korea. METHODS:We prospectively enrolled patients with gout attacks who were treated at nine rheumatology clinics between January 2015 and July 2018 and followed them for 1-year. Demographic data, clinical and...
journal_title:Journal of Korean medical science
pub_type: 杂志文章,多中心研究
doi:10.3346/jkms.2020.35.e133
更新日期:2020-05-25 00:00:00
abstract:BACKGROUND:The objective of this study was to examine changes in the prevalence of cytotoxic-associated gene A (CagA) positive Helicobacter pylori infection in Jinju, Korea, over the last 20 years. METHODS:Three cross-sectional analyses were conducted concurrently. A total of 1,305 serum samples were collected from 19...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2020.35.e259
更新日期:2020-08-17 00:00:00
abstract::A 25-yr-old woman presented with a right pleural effusion. Destruction of 9th through 12th ribs, adjacent vertebral bodies, and transverse processes was noted on plain radiograph and a large low-attenuated, irregular shaped mass lesion with peripheral rim enhancement, destroying vertebral body and transverse process, ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2002.17.6.826
更新日期:2002-12-01 00:00:00
abstract::Genetic damages are frequently found in both tumor and normal cells at carcinogen exposed areas in the patients with upper aerodigestive tract cancer. These phenomena are explained by the multistage process and/or field cancerization theories. The c-erbB-2 proto-oncogene has been amplified in many human tumors includi...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1997.12.4.311
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Previous studies suggest that the impact of social factors on harmful alcohol use between men and women may be different. We aimed to explore the gender-based difference in temporal trend and social risk factors associated with harmful alcohol use. METHODS:The Korea National Health and Nutrition Examination...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e23
更新日期:2018-01-22 00:00:00
abstract::The effects of estriol on oxygen uptake, glucose release, lactate and pyruvate production, beta-hydroxybutyrate and acetoacetate production in perfused rat liver as well as, carbon uptake in rat liver and intracellular calcium in isolated Kupffer cells were investigated. Basal oxygen consumption of perfused liver incr...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1999.14.3.277
更新日期:1999-06-01 00:00:00
abstract::Microarray analysis was used to investigate the lack of identified mammalian target of rapamycin (mTOR) pathway downstream genes to overcome cross-talk at non-muscle invasive high-grade (HG)-urothelial carcinoma (UC) of the bladder, gene expression patterns, gene ontology, and gene clustering by triple (p70S6K, S6K, a...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2017.32.8.1327
更新日期:2017-08-01 00:00:00
abstract:Background:The renal function of individuals is one of the reasons for the variations in therapeutic response to various drugs. Patients with renal impairment are often exposed to drug toxicity, even with drugs that are usually eliminated by hepatic metabolism. Previous study has reported an increased plasma concentrat...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e298
更新日期:2018-10-31 00:00:00
abstract:Background:This study aimed to identify the gender-specific characteristics of the surrogate measures of insulin resistance and to establish valid cut-off values for metabolic abnormalities in a representative sample in Korea. Methods:Data were collected from the datasets of the Korean National Health and Nutrition Ex...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e197
更新日期:2018-06-05 00:00:00
abstract:BACKGROUND:Meniscus surgeries are frequently performed in orthopaedics. However, their current status is not well known in many countries, including Korea. This study aimed to investigate the national trends of meniscus surgery in Korea. METHODS:Information from the national database was acquired through the Korean He...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2019.34.e206
更新日期:2019-08-19 00:00:00
abstract::Interleukin (IL)-33 is an important mediator of innate immunity. Behcet's disease (BD) is an autoinflammatory disorder characterized by hyperactivity of the innate immune response. We measured serum levels of IL-33 and its receptor soluble ST2 (sST2) in patients with BD to investigate their association with disease ac...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2013.28.8.1145
更新日期:2013-08-01 00:00:00
abstract::Esophageal stents have been used to palliate patients with dysphagia caused by esophageal cancer. Early rigid plastic prostheses have been associated with a high risk of complications. However, with the development of self-expanding stents, it has developed into a widely accepted method for treating malignant esophage...
journal_title:Journal of Korean medical science
pub_type: 杂志文章,评审
doi:10.3346/jkms.2017.32.7.1062
更新日期:2017-07-01 00:00:00
abstract::Chimerism in humans is a rare phenomenon often initially identified in the resolution of an ABO blood type discrepancy. We report a dispermic chimera who presented with mixed field in his B antigen typing that might have been mistaken for the B3 subtype. The propositus is a healthy Korean male blood donor. Neither his...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2007.22.3.553
更新日期:2007-06-01 00:00:00
abstract::Scleroderma (SSc) renal crisis has been reported to be associated with anti-RNA polymerase I and III (RNAP I/III) antibodies in Caucasians and the Japanese. However, no report is available for Korean SSc patients. Here, we describe the case of a 65-yr-old female SSc patient who developed renal crisis and whose serum c...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2006.21.6.1121
更新日期:2006-12-01 00:00:00
abstract::We evaluated the clinical course of subchondral insufficiency fracture of the femoral head (SIFFH) and its characteristic findings with special regard to joint space narrowing (JSN). Thirty-one cases of SIFFH of mean age 68.9 yr initially underwent limited weight-bearing conservative treatment. During the follow-up pe...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2014.29.4.593
更新日期:2014-04-01 00:00:00
abstract::To investigate what heterogeneity exists in breast cancer, 228 consecutive patients with operable invasive duetal carcinoma (IDC), not otherwise specified, were categorized on the basis of the horizontal progression model of carcinogenesis. Using the reversed Black's nuclear grade (RBNG) in the IDC component and the a...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2006.21.3.460
更新日期:2006-06-01 00:00:00
abstract::Embolization of the occlusion device after percutaneous closure of atrial septal defect (ASD) is a potential disastrous complication. The usual site of embolization is the right side of the heart including pulmonary artery, but the device embolization to the extracardiac aorta is extremely rare. Here, we report a succ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2015.30.9.1361
更新日期:2015-09-01 00:00:00
abstract::Automated data processing and quality control of radioimmunoassays offer not only increased speed but also a more thorough and statistically rigorous analysis of results. An external quality assessment scheme for serum thyroxine, triiodothyronine and thyroid stimulating hormone (TSH) assays was performed in five nucle...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1988.3.3.117
更新日期:1988-09-01 00:00:00
abstract::Pediatric liver transplantation is the standard of care for treatment of liver failure in children. The aim of this study was to identify the characteristics of pediatric liver transplantation in centers located in Korea and determine factors that influence outcomes. This retrospective study was performed using data f...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2013.28.1.42
更新日期:2013-01-01 00:00:00
abstract::The aim of this study was to develop a new simple method for measuring the vaporized volume and to evaluate the outcome of high-power potassium-titanyl-phosphate (KTP) photoselective laser vaporization. A total of 65 patients, with a mean age of 67.7 yr (range 53 to 85), were included in the primary analysis. The vapo...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2009.24.6.1187
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:On February 21, 2020, 2 coronavirus disease 2019 (COVID-19) cases in pilgrim travelers from Korea to Israel were identified. We investigated the source of infection, clinical features of COVID-19, and transmission potential of presymptomatic and asymptomatic cases. METHODS:All 39 pilgrim travelers were aggr...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2020.35.e424
更新日期:2020-12-14 00:00:00
abstract::To determine the relationship between the oral ingestion volume of xylene and methyl hippuric acid (MHA) in urine, we measured MHA in 11 patients whose ingested xylene volume was identified. The best-fit equation between urine MHA and ingested amount of xylene was as follows: y (ingested amount of xylene, mL/kg) = -0....
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2017.32.12.2051
更新日期:2017-12-01 00:00:00
abstract::Phospholipase C (PLC) and related enzymes in signal transduction system are closely linked to cellular damage in ischemic encephalopathy. This study was undertaken to elucidate the time sequential changes of PLC isoenzymes (beta and gamma) in vulnerable areas of hippocampus in global ischemia and infarcted area in foc...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1996.11.1.44
更新日期:1996-02-01 00:00:00
abstract:Background:Although preterm delivery is the most common cause of infant morbidity and mortality, an obvious cause cannot be found in most cases. Preterm delivery is known to be the most important risk factor for preterm birth in a subsequent pregnancy. We aimed to evaluate the recurrence rate of premature births for su...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e170
更新日期:2018-05-11 00:00:00
abstract::Difference in crude neonatal and infant mortality rates (NMR and IMR) among different countries is due to the differences in its two determinants: birth weight distribution (BWD) and birth weight-specific mortality rates (BW-SMRs). We aimed to determine impact of BWD and BW-SMRs on differences in crude NMR and IMR amo...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2016.31.9.1450
更新日期:2016-09-01 00:00:00
abstract::The reliability and validity of the Cognitive Impairment Diagnosing Instrument (CIDI) were studied in 67 nursing home elderly subjects and 251 elderly psychiatric patients. Its possible highest score is 77 and covers 10 subscales: short-term memory, long-term memory, concentration/calculation, abstract thinking, judge...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1995.10.4.287
更新日期:1995-08-01 00:00:00
abstract::The efficacy of antibiotic prophylaxis in radical prostatectomy (RP) remains to be established. We retrospectively compared the occurrence of perioperative infections after RP between the 2 different antibiotic protocols. This study involved 428 cases of laparoscopic radical prostatectomy (LRP). After excluding patien...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2017.32.6.1009
更新日期:2017-06-01 00:00:00
abstract::This study was designed to identify the causes of the development of carpal tunnel syndrome (CTS) associated with end stage kidney disease (ESKD). A total of 112 patients with ESKD, 64 on hemodialysis (HD) and 48 on peritoneal dialysis (PD), were enrolled. The duration of ESKD and dialysis, the site of the arterioveno...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2011.26.9.1227
更新日期:2011-09-01 00:00:00
abstract::Intraspinal bronchogenic cysts are rare congenital cystic lesions. In all the reported cases, the cysts have been located in the cervical, upper thoracic or thoracolumbar segments. We report the case of an intraspinal bronchogenic cyst in the sacral location. We present the case of a 5-month-old female with a skin dim...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2008.23.5.895
更新日期:2008-10-01 00:00:00
abstract::Clinical research registration is required in many countries to improve transparency of clinical research and to ensure subject safety. Developed in February 2010, the Clinical Research Information Service (CRIS) is an online registration system for clinical studies in Korea and one of the primary registries of the Wo...
journal_title:Journal of Korean medical science
pub_type: 杂志文章,评审
doi:10.3346/jkms.2016.31.1.1
更新日期:2016-01-01 00:00:00