1.Factors Affecting Growth Velocity during Gonadotropin-Releasing Hormone Agonist Treatment in Girls with Idiopathic Central Precocious Puberty.
Mun Sung CHO ; Woo Suck SUH ; Sun Young PARK ; Yun Jung CHOI ; Moon Hee LEE ; Won Kyoung CHO ; Kyoung Soon CHO ; So Hyun PARK ; Seung Hoon HAHN ; Min Ho JUNG ; Byung Kyu SUH ; Byung Churl LEE
Annals of Pediatric Endocrinology & Metabolism 2012;17(2):106-112
PURPOSE: In some girls with central precocious puberty (CPP), growth velocity (GV) decreases below the age-appropriate normal range during gonadotropin-releasing hormone agonist (GnRHa) treatment. The purpose of this study was to investigate clinical and laboratory factors related to changes in GV during GnRHa treatment in girls with CPP. METHODS: We analyzed clinical and laboratory data of 49 girls (aged 7.8+/-0.5 years) with idiopathic CPP who were treated with GnRHa. GV, height standard deviation score (SDS), hormonal parameters, pubertal stage, chronological age and bone age (BA) were evaluated. RESULTS: GV during the first year of GnRHa treatment was 5.9+/-1.0 cm/yr and decreased significantly to 5.4+/-1.1 cm/yr during the second year of treatment (P = 0.005). GV during the third year (5.0+/-1.0 cm/yr) was not different from GV during the second year. During the second year of treatment, 8.2% and 36.7% of the girls had a GV < 4 cm/yr and < 5 cm/yr, respectively. Girls with relatively low GV during the second year of treatment (< 5 cm/yr) showed higher risk of advanced BA (> or = 11 yr) at 1 year (55.6% vs. 19.4%; odds ratio [OR], 5.2; P = 0.022). In multivariate logistic regression analysis, more advanced BA at 1 year (OR, 6.1; 95% confidence interval [CI], 1.57-23.87) and lower height SDS for BA at 1 year (OR, 0.24; 95% CI, 0.06-0.94) were associated with relatively decreased GV (< 5 cm/yr) during the second year of GnRHa treatment. CONCLUSION: GV during and after the second year of GnRHa treatment in girls with idiopathic CPP remains within the normal prepubertal range, and relatively low GV during GnRHa treatment is associated with more advanced BA and lower height SDS for BA.
Gonadotropin-Releasing Hormone
;
Logistic Models
;
Odds Ratio
;
Piperazines
;
Puberty, Precocious
;
Reference Values
2.Factors Affecting Growth Velocity during Gonadotropin-Releasing Hormone Agonist Treatment in Girls with Idiopathic Central Precocious Puberty.
Mun Sung CHO ; Woo Suck SUH ; Sun Young PARK ; Yun Jung CHOI ; Moon Hee LEE ; Won Kyoung CHO ; Kyoung Soon CHO ; So Hyun PARK ; Seung Hoon HAHN ; Min Ho JUNG ; Byung Kyu SUH ; Byung Churl LEE
Annals of Pediatric Endocrinology & Metabolism 2012;17(2):106-112
PURPOSE: In some girls with central precocious puberty (CPP), growth velocity (GV) decreases below the age-appropriate normal range during gonadotropin-releasing hormone agonist (GnRHa) treatment. The purpose of this study was to investigate clinical and laboratory factors related to changes in GV during GnRHa treatment in girls with CPP. METHODS: We analyzed clinical and laboratory data of 49 girls (aged 7.8+/-0.5 years) with idiopathic CPP who were treated with GnRHa. GV, height standard deviation score (SDS), hormonal parameters, pubertal stage, chronological age and bone age (BA) were evaluated. RESULTS: GV during the first year of GnRHa treatment was 5.9+/-1.0 cm/yr and decreased significantly to 5.4+/-1.1 cm/yr during the second year of treatment (P = 0.005). GV during the third year (5.0+/-1.0 cm/yr) was not different from GV during the second year. During the second year of treatment, 8.2% and 36.7% of the girls had a GV < 4 cm/yr and < 5 cm/yr, respectively. Girls with relatively low GV during the second year of treatment (< 5 cm/yr) showed higher risk of advanced BA (> or = 11 yr) at 1 year (55.6% vs. 19.4%; odds ratio [OR], 5.2; P = 0.022). In multivariate logistic regression analysis, more advanced BA at 1 year (OR, 6.1; 95% confidence interval [CI], 1.57-23.87) and lower height SDS for BA at 1 year (OR, 0.24; 95% CI, 0.06-0.94) were associated with relatively decreased GV (< 5 cm/yr) during the second year of GnRHa treatment. CONCLUSION: GV during and after the second year of GnRHa treatment in girls with idiopathic CPP remains within the normal prepubertal range, and relatively low GV during GnRHa treatment is associated with more advanced BA and lower height SDS for BA.
Gonadotropin-Releasing Hormone
;
Logistic Models
;
Odds Ratio
;
Piperazines
;
Puberty, Precocious
;
Reference Values
3.Amorphigenin inhibits Osteoclast differentiation by suppressing c-Fos and nuclear factor of activated T cells.
Bong Gyu KIM ; Han Bok KWAK ; Eun Yong CHOI ; Hun Soo KIM ; Myung Hee KIM ; Seong Hwan KIM ; Min Kyu CHOI ; Churl Hong CHUN ; Jaemin OH ; Jeong Joong KIM
Anatomy & Cell Biology 2010;43(4):310-316
Among the several rotenoids, amorphigenin is isolated from the leaves of Amopha Fruticosa and it is known that has anti-proliferative effects and anti-cnacer effects in many cell types. The main aim of this study was to investigate the effects of amorphigenin on osteoclast differentiation in vitro and on LPS treated inflammatory bone loss model in vivo. We show here that amorphigenin inhibited RANKL-induced osteoclast differentiation from bone marrow macrophages in a dose dependent manner without cellular toxicity. Anti-osteoclastogenic properties of amorphigenin were based on a down-regulation of c-fos and NFATc1. Amorphigenin markedly inhibited RANKL-induced p38 and NF-kappaB pathways, but other pathways were not affected. Micro-CT analysis of the femurs showed that amorphigenin protected the LPS-induced bone loss. We concluded that amorphigenin can prevent inflammation-induced bone loss. Thus we expect that amorphigenin could be a treatment option for bone erosion caused by inflammation.
Bone Marrow
;
Down-Regulation
;
Femur
;
Inflammation
;
Macrophages
;
NF-kappa B
;
Osteoclasts
;
Osteoporosis
;
Rotenone
;
T-Lymphocytes
4.Analysis of gonadotropin-releasing hormone (GnRH) test results in girls with precocious puberty.
Jung Yun CHOI ; Hyun Ju KANG ; Won Kyoung CHO ; Kyoung Soon CHO ; So Hyun PARK ; Seung Hoon HAHN ; Min Ho JUNG ; Byung Kyu SUH ; Byung Churl LEE
Korean Journal of Pediatrics 2009;52(12):1377-1382
PURPOSE: The gonadotropin-releasing hormone (GnRH) test results of girls with precocious puberty were analyzed to determine whether this test can efficiently and clearly differentiate between central precocious puberty (CPP) and other disorders. METHODS: Clinical and laboratory data of 54 girls with precocious pubertal signs were reviewed. Intravenous GnRH test was performed with blood samples obtained at 0, 30, 60, and 90 minutes. A peak luteinizing hormone (LH) level of > or =5.0 IU/L was indicative of CPP. RESULTS: Of the 40 girls with CPP, 36 (90.0%), 3 (7.5%), and 1 (2.5%) showed peak LH levels at 30, 60, and 90 minutes, respectively. A percentage of girls whose peak LH > or =5.0 IU/L up to 30, 60, and 90 minutes was 92.5%, 100%, and 100%, respectively. The peak LH/follicle stimulating hormone (FSH) ratio of girls with CPP was 0.89+/-0.49 and was <1 in 16 of the 40 girls (40.0%). Girls with peak LH/FSH ratio of >1.0 showed higher chronological age (CA) (8.3+/-0.6 vs. 7.7+/-1.0 years, P=0.033), bone age (BA) (10.9+/-0.8 vs. 9.7+/-1.1 years, P=0.001), and BA-CA difference (2.6+/-0.7 vs. 2.0+/-0.7 years, P=0.009) than those of girls with peak LH/FSH ratio of < or =1.0. Higher percentage of girls with peak LH/FSH ratio of >1.0 showed advanced breast development (> or =Tanner III) (93.7% vs. 41.7%, P=0.001). CONCLUSION: LH levels after 30 and 60 minutes of intravenous GnRH administration are the most useful for diagnosing CPP in girls.
Breast
;
Gonadotropin-Releasing Hormone
;
Luteinizing Hormone
;
Piperazines
;
Puberty, Precocious
5.A Clinical Study of Prevalence of Telogen Effluvium after Childbirth.
Hyun Deok SEO ; Byoung Soo CHUNG ; Kyu Churl CHOI ; Bong Seok SHIN
Korean Journal of Dermatology 2009;47(2):127-131
BACKGROUND: Telogen effluvium (TE) is a form of nonscarring alopecia, characterized by diffuse scalp hair thinning in response to some form of physiologic stress. It is commonly described in women subsequent to childbirth. OBJECTIVE: The purpose of this study was to evaluate the prevalence of TE after childbirth. METHODS: Medical records from January 2006 to June 2007 of 240 postpartum patients from our obstetric department were reviewed. Telephone interviews with TE patients were conducted to investigate the initial occurrence time, restoration time, and treatment history. RESULTS: Prevalence of TE according to parity is higher in multiparas than primiparas (p=0.026). In addition, the prevalence of TE after a cesarean section delivery is higher than that after non-surgical delivery (p=0.014). Prevalence of TE with respect to weight gain is higher in the groups displaying agreater increase in weight (p=0.014). Finally, prevalence of TE according to gestational age is higher in groups giving birth after 38 weeks gestational age (p=0.015). CONCLUSION: Prevalence of telogen effluvium may be associated with multiparity, cesarean section, marked weight gain, and high gestational age.
Alopecia
;
Cesarean Section
;
Female
;
Gestational Age
;
Hair
;
Humans
;
Interviews as Topic
;
Medical Records
;
Parity
;
Parturition
;
Postpartum Period
;
Pregnancy
;
Prevalence
;
Scalp
;
Weight Gain
6.DHA and EPA Down-regulate COX-2 Expression through Suppression of NF-kappa B Activity in LPS-treated Human Umbilical Vein Endothelial Cells.
Soon Ae LEE ; Hye Jung KIM ; Ki Churl CHANG ; Jong Chul BAEK ; Ji Kwon PARK ; Jeong Kyu SHIN ; Won Jun CHOI ; Jong Hak LEE ; Won Young PAIK
The Korean Journal of Physiology and Pharmacology 2009;13(4):301-307
Inflammatory processes of vascular endothelial cells play a key role in the development ofatherosclerosis. We determined the anti-inflammatory effects and mechanisms of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on LPS-treated human umbilical vein endothelial cells (HUVECs) to evaluate their cardioprotective potential. Cells were pretreated with DHA, EPA, or troglitazone prior to activation with LPS. Expression of COX-2, prostaglandin E2 (PGE2) and IL-6 production, and NF-kappaB activity were measured by Western blot, ELISA, and luciferase activity, respectively. Results showed that EPA, DHA, or troglitazone significantly reduced COX-2 expression, NF-kappaB luciferase activity, and PGE2 and IL-6 production in a dose-dependent fashion. Interestingly, low doses (10 micrometer) of DHA and EPA, but not troglitozone, significantly increased the activity of NF-kappaB in resting HUVECs. Our study suggests that while DHA, EPA, and troglitazone may be protective on HUVECs under inflammatory conditions in a dose-dependent manner. However there may be some negative effects when the concentrations are abnormally low, even in normal endothelium.
Blotting, Western
;
Chromans
;
Cyclooxygenase 2
;
Dinoprostone
;
Eicosapentaenoic Acid
;
Endothelial Cells
;
Endothelium
;
Enzyme-Linked Immunosorbent Assay
;
Human Umbilical Vein Endothelial Cells
;
Humans
;
Interleukin-6
;
Luciferases
;
NF-kappa B
;
Thiazolidinediones
7.A Clinical Study of Cases of Syphilis Referred to Our Dermatologic Clinic (2002~2007): Clinical Presentation and Changes in Symptomatic Stage.
Bong Seok SHIN ; Ji Young SONG ; Byoung Soo CHUNG ; Kyu Churl CHOI
Korean Journal of Dermatology 2008;46(9):1179-1185
BACKGROUND: There are many differences in the prevalence of syphilis according to the objects and districts. Recently, the incidence of syphilis increased in the world because of various factors. OBJECTIVE: The purpose of this study is to investigate the changes of the epidemiological, clinical characteristics, and stages of syphilis. METHODS: We selected 357 patients with reactive results on VDRL among 79,991 cases who visited in our hospital, between January 2002 and December 2007. We assessed the age, gender, skin lesion, serologic result, clinical stage, treatment history, and underlying disease. RESULTS: During the 7-year period under study, the reactive rate of serum VDRL test was 4.5% in 79,991 people (preoperation or admission examinees: 35.0%. physical examinees: 30.8%, skin lesion: 21.3%, partner's (+): 9.0%, pregnant women: 3.7%). The annual incidence of syphilis had increased from 3.5% in 2002 to 6.3% in 2007. On a total 357 sera with reactive results on VDRL, the symptomatic syphilis rate was 21.3%, increased from 13.6% in 2002 to 26.8% in 2007 (p=0.001). Statistically, there are differences in age distribution between both sexes. The male:female ratio was 1:3.3 in 0~19 years and 1.9:1 in 60~69 years (p=0.029). The incidence of symptomatic syphilis cases was 8 (66.7%) in 0~19 years, 22 (39.3%) in 20~29 years, while latent syphilis was 53 (74.6%) in 50~59 years and 35 (60.3%) in 60~69 years (p<0.001). CONCLUSION: This study suggests that the incidence of symptomatic syphilis may be increasing. Further observation, analysis, and continued vigilance in the general population are required.
Age Distribution
;
Humans
;
Incidence
;
Prevalence
;
Skin
;
Syphilis
;
Syphilis, Latent
8.A Case of Jessner's Lymphocytic Infiltration.
Bong Seok SHIN ; Hyun Deok SEO ; Chan Ho NA ; Kyu Churl CHOI ; Byoung Soo CHUNG
Korean Journal of Dermatology 2008;46(7):977-980
Jessner's lymphocytic infiltration of the skin (JLIS) is a well-known but poorly understood disorder. Some doubt still exists about whether it is a distinct disease or a variant of lupus erythematosus or, less commonly, polymorphous light eruption, cutaneous lymphoid hyperplasia. An effective therapy is still unavailable for JLIS. We report a patient with JLIS which was successfully treated with dapsone and intermittent systemic glucocorticoid therapy.
Dapsone
;
Humans
;
Hyperplasia
;
Light
;
Skin
9.Kinetic Changes of COX-2 Expression during Reperfusion Period after Ischemic Preconditioning Play a Role in Protection Against Ischemic Damage in Rat Brain.
Young Jin KANG ; Min Kyu PARK ; Hyun Suk LEE ; Hyoung Chul CHOI ; Kwang Youn LEE ; Hye Jung KIM ; Han Geuk SEO ; Jae Heun LEE ; Ki Churl CHANG
The Korean Journal of Physiology and Pharmacology 2008;12(5):275-280
A brief ischemic insult induces significant protection against subsequent massive ischemic events. The molecular mechanisms known as preconditioning (PC)-induced ischemic tolerance are not completely understood. We investigated whether kinetic changes of cyclooxygenase (COX)-2 during reperfusion time-periods after PC were related to ischemic tolerance. Rats were given PC by occlusion of middle cerebral artery (MCAO) for 10 min and sacrificed after the indicated time-periods of reperfusion (1, 2, 4, 8, 12, 18 or 24 h). In PC-treated rats, focal ischemia was induced by occlusion of MCA for 24 h and brain infarct volume was then studied to determine whether different reperfusion time influenced the damage. We report that the most significant protection against focal ischemia was obtained in rats with 8 h reperfusion after PC. Administration of indomethacin (10 mg/kg, oral) or rofecoxib (5 mg/kg, oral) 48 h prior to PC counteracted the effect of PC. Immunohistochemical analysis showed that COX-2 and HO-1 protein were induced in PC-treated rat brain, which was significantly inhibited by rofecoxib. Taken together, we concluded that the kinetic changes of COX-2 expression during the reperfusion period after PC might be partly responsible for ischemic tolerance.
Animals
;
Brain
;
Heme Oxygenase (Decyclizing)
;
Indomethacin
;
Ischemia
;
Ischemic Preconditioning
;
Lactones
;
Middle Cerebral Artery
;
Prostaglandin-Endoperoxide Synthases
;
Rats
;
Reperfusion
;
Stroke
;
Sulfones
10.Roles of Sphingosine-1 Phosaphate During Pathogenesis of Bone Destruction and Inflammation in Rheumatoid Arthritis Mice Model.
Han Bok KWAK ; Deok Su KWON ; Sung Jo JANG ; Eun Yong CHOI ; Eun Gyeong LEE ; Byoung Hyun PARK ; Hyun Dai KIM ; Phil Seung SEO ; Jeong Joong KIM ; Min Kyu CHOI ; Hae Joong CHO ; Jeong Woo KIM ; Hun Soo KIM ; Myeung Su LEE ; Churl Hong CHUN ; Jae Min OH
Korean Journal of Anatomy 2007;40(4):277-286
Sphingosine 1-phosphate (S1P) is a bioactive lipid molecule that mediates cell proliferation, differentiation, migration, and angiogenesis in vivo. However, the roles of S1P on pathogenesis of arthritis have been not completely understood. This study was designed to determine the effects of S1P modulation on collageninduced arthritis (CIA) model. DBA/1J mice were injected with collagen into the tail for induction of CIA model. S1P was administered into the peritoneal cavity every other days from day 1 to day 42 after collagen injection. To determine the degree of damage in CIA, we examined macroscopic findings of CIA. The inflammation and bone destruction of CIA mice were evaluated by histo-patholigy and radiography (CT and microradiography). The expressions of TNF-alpha, IL-6, and RANKL which have important roles in pathogenesis of rheumatoid arthritis and bone destruction were observed by immuno-histochemical staining. After injection with collagen in the DBA/1J mice, CIA was induced by swelling in the knee and ankle joint. Administration of S1P suppressed damages and incidence of arthritis elicited by collagen. In histologic and radiographic studies, S1P strongly suppressed the infiltration of inflammatory cells, the swelling of synovial membrane, erosion, and the destruction of bone on CIA mice. Injection of S1P resulted in down-regulation of the expression of the pro-inflammatory and bone destruction mediators such as TNF-alpha, IL-6, and RANKL on CIA mice. Furthermore, S1P suppressed the differentiation of bone marrow cells into osteoclasts by RANKL. In conclusion, this study suggest that S1P has protective effects on inflammation and bone destruction during pathogenesis of CIA, which indicates S1P can be a new possible therapeutic strategy for rheumatoid arthritis
Animals
;
Ankle Joint
;
Arthritis
;
Arthritis, Rheumatoid*
;
Bone Marrow Cells
;
Cell Proliferation
;
Collagen
;
Down-Regulation
;
Incidence
;
Inflammation*
;
Interleukin-6
;
Knee
;
Mice*
;
Osteoclasts
;
Peritoneal Cavity
;
Radiography
;
Sphingosine
;
Synovial Membrane
;
Tail
;
Tumor Necrosis Factor-alpha

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