1.Pyogenic Spinal Epidural Abscess: A Case Report.
Won Tae CHOI ; Bo Yel CHOI ; Jeong Woung LEE ; Myung Sang MOON
The Journal of the Korean Orthopaedic Association 2002;37(2):319-323
Pyogenic spinal epidural abscess is extremely rare, but a significant disease due to its high mortality rate and remaning neurologic sequela, if it is not diagnosed and treated in time. Recently, it became possible to promptly diagnosis pyogenic epidural abscess by MRI. We report a case who was subjected immediately to surgical drainage under the cover of intravenous antibiotic treatment after diagnosis who recovered completely without any residual.
Abscess
;
Diagnosis
;
Drainage
;
Epidural Abscess*
;
Magnetic Resonance Imaging
;
Mortality
2.Peroxisome proliferator-activated receptor delta agonist attenuates hepatic steatosis by anti-inflammatory mechanism.
Mi Young LEE ; Ran CHOI ; Hong Min KIM ; Eun Ju CHO ; Bo Hwan KIM ; Yeon Sik CHOI ; Jarinyaporn NAOWABOOT ; Eun Young LEE ; Young Chul YANG ; Jang Yel SHIN ; Young Goo SHIN ; Choon Hee CHUNG
Experimental & Molecular Medicine 2012;44(10):578-585
Although peroxisome proliferator receptor (PPAR)-alpha and PPAR-gamma agonist have been developed as chemical tools to uncover biological roles for the PPARs such as lipid and carbohydrate metabolism, PPAR-delta has not been fully investigated. In this study, we examined the effects of the PPAR-delta agonist GW0742 on fatty liver changes and inflammatory markers. We investigated the effects of PPAR-delta agonist GW0742 on fatty liver changes in OLETF rats. Intrahepatic triglyceride contents and expression of inflammatory cytokines such as tumor necrosis factor-alpha (TNF-alpha) and monocyte chemo-attractant protein-1 (MCP-1) and also, PPAR-gamma coactivator (PGC)-1alpha gene were evaluated in liver tissues of OLETF rats and HepG2 cells after GW0742 treatment. The level of TNF-alpha and MCP-1 was also examined in supernatant of Raw264. 7 cell culture. To address the effects of GW0742 on insulin signaling, we performed in vitro study with AML12 mouse hepatocytes. Rats treated with GW0742 (10 mg/kg/day) from 26 to 36 weeks showed improvement in fatty infiltration of the liver. In liver tissues, mRNA expressions of TNF-alpha, MCP-1, and PGC-1alpha were significantly decreased in diabetic rats treated with GW0742 compared to diabetic control rats. We also observed that GW0742 had inhibitory effects on palmitic acid-induced fatty accumulation and inflammatory markers in HepG2 and Raw264.7 cells. The expression level of Akt and IRS-1 was significantly increased by treatment with GW0742. The PPAR-delta agonist may attenuate hepatic fat accumulation through anti-inflammatory mechanism, reducing hepatic PGC-1alpha gene expression, and improvement of insulin signaling.
Animals
;
Anti-Inflammatory Agents/*pharmacology/therapeutic use
;
Blood Glucose
;
Cytokines/genetics/metabolism
;
Diabetes Mellitus/blood/immunology/metabolism
;
Fatty Liver/blood/*drug therapy/immunology
;
Glucose Tolerance Test
;
Hep G2 Cells
;
Humans
;
Insulin Resistance
;
Liver/metabolism
;
Male
;
PPAR delta/*agonists/metabolism
;
Rats
;
Rats, Long-Evans
;
Thiazoles/*pharmacology/therapeutic use
;
Triglycerides/metabolism
3.Effects of Spironolactone and Losartan on Diabetic Nephropathy in a Type 2 Diabetic Rat Model.
Mi Young LEE ; Myoung Sook SHIM ; Bo Hwan KIM ; Soon Won HONG ; Ran CHOI ; Eun Young LEE ; Soo Min NAM ; Gun Woo KIM ; Jang Yel SHIN ; Young Goo SHIN ; Choon Hee CHUNG
Diabetes & Metabolism Journal 2011;35(2):130-137
BACKGROUND: While there is an evidence that the anti-inflammatory properties of spironolactone can attenuate proteinuria in type 2 diabetes, its effects on vascular endothelial growth factor (VEGF) expression in diabetic nephropathy have not been clearly defined. In this study, we examined the effects of spironolactone, losartan, and a combination of these two drugs on albuminuria, renal VEGF expression, and inflammatory and oxidative stress markers in a type 2 diabetic rat model. METHODS: Thirty-three Otsuka-Long-Evans-Tokushima-Fatty (OLETF) rats were divided into four groups and treated with different medication regimens from weeks 25 to 50; OLETF diabetic controls (n=5), spironolactone-treated (n=10), losartan-treated (n=9), and combination of spironolactone- and losartan-treated (n=9). RESULTS: At week 50, the albumin-to-creatinine ratio was significantly decreased in the losartan and combination groups compared to the control OLETF group. No decrease was detected in the spironolactone group. There was a significant reduction in renal VEGF, transforming growth factor (TGF)-beta, and type IV collagen mRNA levels in the spironolactone- and combination regimen-treated groups. Twenty-four hour urine monocyte chemotactic protein-1 levels were comparable in all four groups but did show a decreasing trend in the losartan and combination regimen groups. Twenty-four hour urine malondialdehyde levels were significantly decreased in the spironolactone- and combination regimen-treated groups. CONCLUSION: These results suggest that losartan alone and a combined regimen of spironolactone and losartan could ameliorate albuninuria by reducing renal VEGF expression. Also, simultaneous treatment with spironolactone and losartan may have protective effects against diabetic nephropathy by decreasing TGF-beta and type IV collagen expression and by reducing oxidative stress in a type 2 diabetic rat model.
Albuminuria
;
Animals
;
Chemokine CCL2
;
Collagen Type IV
;
Diabetic Nephropathies
;
Losartan
;
Malondialdehyde
;
Oxidative Stress
;
Proteinuria
;
Rats
;
RNA, Messenger
;
Spironolactone
;
Transforming Growth Factor beta
;
Transforming Growth Factors
;
Vascular Endothelial Growth Factor A