J Y Hur

Kyung Hee University, Seoul, Seoul, South Korea

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Publications (8)15.62 Total impact

  • Article: Relationship between the expression of fibulin-3 and anterior vaginal wall prolapse.
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    ABSTRACT: Anterior vaginal wall prolapse is the most common type of pelvic organ prolapse. Vaginal wall samples were obtained from women with (n =12) and without (n =12) anterior vaginal wall prolapse. No reports have been published on the content of fibulin-3 in the vaginal walls of patients with prolapse; thus, we compared the expression of fibulin-3 in the vaginal walls of women with and without anterior vaginal wall prolapse. RT-PCR was performed to measure mRNA expression and the expression of protein was assessed by immunohistochemistry. Statistical analysis was performed to determine differences between the two groups of women. Age, parity and menopausal status did not differ between women with and without prolapse. The expressions of fibulin-3 mRNA and protein were not different between the prolapse and no prolapse groups. It is unlikely that abnormal expression of fibulin-3 has a major role in the pathogenesis of anterior vaginal wall prolapse.
    Journal of obstetrics and gynaecology: the journal of the Institute of Obstetrics and Gynaecology 05/2012; 32(4):362-6. · 0.43 Impact Factor
  • Article: The relationship between fat depot-specific preadipocyte differentiation and metabolic syndrome in obese women.
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    ABSTRACT: Obesity is strongly associated with metabolic syndrome, but not all obese individuals display a clustering of metabolic risk factors. Recent studies have shown that in vitro subcutaneous (SC)-preadipocyte differentiation is negatively associated with obesity. These results suggest that impaired adipogenesis is an important factor linking obesity to metabolic disorders. We examined whether in vitro preadipocyte differentiation is associated with metabolic syndrome, independent of obesity. Paired adipose tissue samples were obtained from the 13 nonobese women and the 65 obese women. The CD34(+)/CD31(-) cells were isolated from the stromal-vascular fraction of both SC and omental (OM) fat depots by immune magnetic separation, and the subset was cultured with a differentiation cocktail. Then, we analysed the relationship between the degree of preadipocyte differentiation and metabolic factors. Obese women without metabolic syndrome (n = 37) had significantly higher SC-preadipocyte differentiation than equally obese women with metabolic syndrome (n = 28); however, OM-preadipocyte differentiation was similar in both groups. SC-preadipocyte differentiation was strongly correlated with triglycerides, HDL cholesterol, homoeostasis model assessment of insulin resistance and OM-adipocyte size. However, OM-preadipocyte differentiation was not correlated with any of these parameters. This study identified that SC-preadipocyte differentiation is associated with metabolic syndrome independent of obesity, whereas OM-preadipocyte differentiation is not. These findings suggest that, in the setting of obesity, an enhanced adipogenic capacity of SC depots could be protective for metabolic syndrome. Our data underscores an interaction between adipose tissue homoeostasis and metabolic disorder.
    Clinical Endocrinology 06/2011; 76(1):59-66. · 3.17 Impact Factor
  • Article: Finger-assisted stretching technique for cesarean section.
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    ABSTRACT: To compare the perioperative outcomes of two cesarean section methods, the finger-assisted stretching technique (FAST), based on a modified Joel-Cohen method, with the traditional technique. A retrospective review of the records of 416 women who underwent cesarean sections at Guro Hospital, Seoul, Korea, between May 1993 and December 2001 was performed. Of the 416 women, 283 underwent cesarean sections with FAST and 133 with the traditional technique. Operative time was significantly shorter with FAST (15.3 vs. 42.6 min, P<.05), and FAST was associated with lower blood loss (601 vs. 928 mL, P<.05) and shorter hospital stay (3.7 vs. 6.5 days, P<.05). There were no significant differences in wound infection, voiding difficulty, and postoperative adhesions between the two methods. These results suggest that FAST may be the better technique.
    International Journal of Gynecology & Obstetrics 03/2006; 92(3):212-6. · 2.05 Impact Factor
  • Article: Long anterior urethral reconstruction using a sensate ulnar forearm free flap.
    Plastic &amp Reconstructive Surgery 01/2002; 108(7):2053-6. · 3.38 Impact Factor
  • Article: Neuroprotective and neurotrophic effects of quinic acids from Aster scaber in PC12 cells.
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    ABSTRACT: Aster scaber T. (Asteraceae) has been used to treat bruises, snakebite, headache, and dizziness in traditional Chinese medicine. In the present study, the neuroprotective effect of four quinic acid derivatives from A. scaber on amyloid Abeta-induced PC12 cell toxicity was investigated. When cells were treated with quinic acid derivatives prior to Abeta, cell toxicity was significantly diminished. Among quinic acid derivatives, (-)4,5-dicaffeoyl quinic acid (1) gave the highest protection against Abeta-induced cell toxicity. In addition, the neurotrophic effects of compounds were evaluated by microscopically monitoring their potency to induce neurite outgrowth in PC12 cells. Four quinic acid derivatives from A. scaber promoted neurite outgrowth in PC12 cells. Interestingly, a novel quinic acid, (-)3,5-dicaffeoyl-muco-quinic acid (2) was more effective than the other compounds in promoting neurite outgrowth. Unlike nerve growth factor, the withdrawal of quinic acids did not result in any significant decrease in cell viability. The results suggest that quinic acid derivatives from A. scaber might potentially be used as a therapeutic agent in Alzheimer disease.
    Biological & Pharmaceutical Bulletin 09/2001; 24(8):921-4. · 1.66 Impact Factor
  • Article: Risk factors for the progression or persistence of untreated mild dysplasia of the uterine cervix.
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    ABSTRACT: To identify the factors that may predict the progression or persistence of untreated mild dysplasia of the uterine cervix, we performed a retrospective review of 118 patients with histologically verified mild dysplasia who underwent colposcopic biopsies between January 1999 and December 2003. Regression to normal occurred in 70.3%, progression to moderate dysplasia or worse occurred in 11.0%, and persistence of mild dysplasia occurred in 18.7%. In regression/progression analysis, progression of untreated mild dysplasia was 34.5% (10/29) in patients with high viral loads (> or =100 relative light units/positive control [RLU/PC]) and 4.5% (3/67) in those with low viral loads (1 to <100 RLU/PC) and negative human papillomavirus (HPV) tests (P < 0.001). Women with high viral loads had a 13-fold greater chance of progression of untreated mild dysplasia than those with low viral loads and negative HPV tests (CI: 2.494-95.297; P = 0.0022). Those associated with both positive smear and positive HPV test (12/45 = 26.7%) were at a greater risk of progression of untreated mild dysplasia as compared with those with positive smear and negative HPV (0/17 = 0.0%) or those with negative smear and positive HPV test (1/18 = 5.6%). Those with high viral loads and both with positive smear and positive HPV test should be followed closely because of their increased risk of progression of untreated mild dysplasia.
    International Journal of Gynecological Cancer 16(4):1608-13. · 1.65 Impact Factor
  • Article: The expression of p16 (INK4a) and Ki-67 in relation to high-risk human papilloma viral load and residual disease after conization with positive margins.
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    ABSTRACT: The purpose of this study was to investigate the correlations between high-risk human papillomavirus (HPV) load and p16 (INK4a) or Ki-67, and to identify biomarkers that may predict residual disease after conization with positive margins. The following samples were analyzed: 49 paraffin-embedded specimens from patients with cervical intraepithelial neoplasia (CIN), including 12 CIN 2 conization specimens and 37 CIN 3 conization specimens. Immunohistochemical analysis was performed with antibodies to p16 (INK4a) and Ki-67. Hybrid Capture II testing was used to detect high-risk HPV DNA. The mean HPV loads within each of the p16 (INK4a)-staining cases were 9.5 (relative light units/positive control) RLU/PC for negative staining, 531.8 RLU/PC for 1+ staining, 140.2 RLU/PC for 2+ staining, and 545.1 RLU/PC for 3+ staining. HPV loads differed significantly according to p16 (INK4a) expression (P = 0.0021). The mean HPV loads within Ki-67 staining cases were 28.2 RLU/PC for 1+ staining, 189.6 RLU/PC for 2+ staining, and 563.3 RLU/PC for 3+ staining. HPV loads differed significantly according to Ki-67 expression (P = 0.0259). The expression of p16 (INK4a) (P = 0.0012) and Ki-67 (P = 0.0006) were significantly associated with the CIN grade. In univariate and multiple logistic regression analysis, age, parity, cytology, lesion grade in the cone, high-risk HPV load, and the expression of p16 (INK4a) and Ki-67 were not significantly associated with residual lesions after conization with positive margins (P > 0.05). In conclusion, high-risk HPV load showed significant differences according to the expression of p16 (INK4a) and Ki-67, while none of the prognostic factors were significantly associated with residual disease after conization with positive margins.
    International Journal of Gynecological Cancer 17(4):858-67. · 1.65 Impact Factor
  • Article: The expression of epidermal growth factor receptor, vascular endothelial growth factor, matrix metalloproteinase-2, and cyclooxygenase-2 in relation to human papilloma viral load and persistence of human papillomavirus after conization with negative margins.
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    ABSTRACT: The aim of this study was to investigate the correlations between human papillomavirus (HPV) load and vascular endothelial growth factor (VEGF), epidermal growth factor receptor (EGFR), matrix metalloproteinase-2 (MMP-2), and cyclooxygenase-2 (COX-2), and to identify biomarkers that may predict high-risk HPV clearance or persistence after conization with negative margins. The following samples were analyzed: 77 paraffin-embedded specimens from patients with cervical intraepithelial neoplasia (CIN), including 27 CIN 2 conization specimens and 50 CIN 3 conization specimens. Immunohistochemical analysis was performed with antibodies to VEGF, EGFR, MMP-2, and COX-2. Hybrid capture II testing was used to detect HPV DNA. VEGF expression was significantly associated with HPV load (rho = 0.27186, P = 0.0191), while COX-2 expression was significantly and inversely associated with HPV load (rho = -0.34309, P = 0.0028). In univariate analysis, HPV load (P = 0.0112) and VEGF expression (P = 0.0274) were significantly associated with high-risk HPV clearance or persistence after conization with negative margins. In multiple regression analysis, high viral load (relative light unit/positive control > 500) and positive VEGF expression were significantly associated with high-risk HPV persistence after conization with negative margins (odds ratio [OR]: 9.915, CI: 1.891-51.994; OR: 6.661, CI: 1.208-36.722, respectively). In conclusion, VEGF expression is related to HPV load, while COX-2 expression is inversely related to HPV load, and immunohistochemical analysis of VEGF expression and HPV viral load are a significant and an independent prognostic indicator of high-risk HPV persistence after conization with negative margins.
    International Journal of Gynecological Cancer 16(6):2009-17. · 1.65 Impact Factor