1.A Case of Semicircular Lipoatrophy.
Sook Hyun KONG ; Jun Young SEONG ; Seok Hyun HAN ; Yu Sung CHOI ; Ho Seok SUH
Korean Journal of Dermatology 2017;55(1):70-71
No abstract available.
2.A Case of Coexistence of Disseminated Superficial Porokeratosis with Porokeratosis of Mibelli.
Ji Hyun KIM ; Seok Hyun HAN ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2018;56(3):220-221
No abstract available.
Porokeratosis*
3.A Case of Varicella in Pregnancy by Using Polymerase Chain Reaction
Seok Hyun HAN ; Ji Hyun KIM ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2018;56(1):72-73
No abstract available.
Chickenpox
;
Polymerase Chain Reaction
;
Pregnancy
4.A Case of Acneiform Eruption Induced by Bevacizumab
Seok Hyun HAN ; Ji Hyun KIM ; Yong Woo OH ; Dong Hee KIM ; Yu Sung CHOI ; Ho Seok SUH
Korean Journal of Dermatology 2019;57(3):159-161
No abstract available.
Acneiform Eruptions
;
Bevacizumab
5.A Case of Benign Cephalic Histiocytosis.
Jun Young SEONG ; Woong Suk CHAE ; Ha Na JUNG ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2014;52(8):587-588
No abstract available.
Histiocytosis*
6.Cutaneous Malignant Peripheral Nerve Sheath Tumor Not Associated with Neurofibromatosis.
Ha Na JUNG ; Woong Suk CHAE ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2014;52(5):353-354
No abstract available.
Neurofibromatoses*
;
Peripheral Nerves*
7.Effect of Estrogen Replacement on Vascular Responsiveness in Ovariectomized Spontaneously Hypertensive Rat.
Bonggwan SEO ; Dong Ju CHOI ; Jin Yong HWANG ; Il Seok CHEON ; Yu Pan LEE
Korean Circulation Journal 2000;30(4):528-528
BACKGROUND: Although postmenopausal estrogen replacement therapy is known to reduce cardiovascular mortality, the mechanism is not clear yet. Furthermore, the effect of estrogen on vascular tonus is reportedly variable according to the animal models, vascular beds and agonists used. MATERIALS AND METHOD: Bilateral ovariectomies were performed in 12 week-old, 18 spontaneously hypertensive rats (SHR) and 18 normotensive Wistar-Kyoto rats (WKY). Rats were divided into three groups according to the dose of 17beta-estradiol (E 2 ) pellets implanted subcutaneously two weeks after ovariectomy: control (no implantation), low-dose (0.5 mg) and high-dose (5 mg) E 2 replacement group. Two weeks after pellet implantation, organ bath experiments were performed using descending thoracic aortae. For endothelium-dependent relaxation, acetylcholine (10(-9) -3x10(-6) M) was cumulatively added into the vessels precontracted with 10(-7) M norepinephrine (NE). For vasoconstrictor responses, cumulative concentration-contraction curves were constructed in quiescent vessels using NE (10(-9) -10(-5) M), U46619 (10(-9) -3x10(-6) M), endothelin-1 (10(-10) -10(-7) M). In addition, contraction to angiotensin II (10(-7) M) was also obtained. Serum 17beta-estradiol levels were measured by radioimmunoassay. Blood pressure was measured by tail-cuff method in some SHRs before ovariectomy and after placebo/E 2 replacement. RESULTS: Endothelium-dependent relaxation to acetylcholine was impaired in WKY treated with 5 mg E 2 (pIC 50 : control vs 5mg E 2 : 7.75+/-0.13 vs 7.27+/-0.16: n=6: p<0.05). No significant effect was noted in SHR. Contraction to angiotensin II was inhibited by low-dose E 2 in WKY and high-dose E 2 in SHR (% of the contraction to 60 mM KCl: WKY: control vs 0.5 mg E 2 : 39+/-5 vs 25+/-2: SHR: control vs 5 mg E 2 : 34+/-4 vs 22+/-2: n=6 and p<0.05 in WKY and SHR). In contrast, NE-induced contraction was enhanced by E 2 replacement (both low- and high-dose) in WKY and SHR (WKY: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 280+/-24 vs 387+/-26 vs 374+/-25: maximal contraction: 137+/-8 vs 166+/-8 vs 162+/-3: pD 2 : 7.63+/-0.11 vs 8.17+/-0.13 vs 8.13+/-0.13: SHR: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 265+/-17 vs 349+/-16 vs 406+/-19: maximal contraction: 152+/-6 vs 181+/-9 vs 203+/-16: pD 2 : 7.45+/-0.13 vs 7.91+/-0.08 vs 8.04+/-0.04: n=6 and p<0.05 between control and treated groups in WKY and SHR for all parameters). Contraction to U46619 was enhanced by E 2 replacement in SHR (control vs 0.5 mg E 2 : AUC: 478+/-30 vs 574+/-23: maximal contraction: 181+/-9 vs 230+/-10: n=6: p<0.05 for both parameters). Maximal contractile response to endothelin-1 was also enhanced in SHR (control vs 0.5 mg E 2 vs 5 mg E 2 : maximal contraction: 165+/-7 vs 189+/-7 vs 199+/-8: n=6 and p<0.05 between control and treated groups) but not in WKY. Blood pressure was not different between placebo and E 2- treated SHR (171+/-2 vs 174+/-4 mmHg). CONCLUSION: In WKY, chronic high-dose estrogen replacement impairs endothelium-dependent relaxation to acetylcholine.: low-dose estrogen replacement does not affect endothelium-dependent relaxation in SHR and WKY. Estrogen replacement enhances the contraction to most of the contractile agonists tested except angiotensin II in both WKY and SHR. These results suggest that estrogen replacement affect the vascular tonus differently according to the vasoactive substances and/or hormones without significant effect on blood pressure.
15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
;
Acetylcholine
;
Angiotensin II
;
Animals
;
Aorta, Thoracic
;
Area Under Curve
;
Baths
;
Blood Pressure
;
Endothelin-1
;
Estrogen Replacement Therapy*
;
Estrogens*
;
Female
;
Models, Animal
;
Mortality
;
Norepinephrine
;
Ovariectomy
;
Radioimmunoassay
;
Rats
;
Rats, Inbred SHR*
;
Relaxation
8.Vitiligo Lesions Stopped Spreading after Oral Cyclosporine in a Vitiligo Patient Who Shows Systemic Steroid Resistance.
Woong Suk CHAE ; Danbi LEE ; Ha Na JUNG ; Ho Seok SUH ; Yu Sung CHOI
Korean Journal of Dermatology 2014;52(2):144-145
No abstract available.
Cyclosporine*
;
Humans
;
Vitiligo*
9.The effect of denture adhesives on the retention of complete denture.
Yu Mi YOON ; Yu Sung CHOI ; Joon Seok LEE
The Journal of Korean Academy of Prosthodontics 2010;48(2):87-93
PURPOSE: The purpose of this study was to compare the retention of the two denture adhesives with a silicone edentulous model and a resin denture base in vitro study. MATERIAL AND METHODS: The experimental groups were used two denture adhesives and classified into 5 subgroups each. Subgroups were divided by the number of times the saliva sprayed. The control group was used synthetic saliva only. Dislodging tensile strengths were applied to the resin denture base using Instron in 3 directions : vertical, lateral, and anterior-posterior. RESULTS: The retention of two denture adhesives was increased significantly than saliva alone (P < .05). In each denture adhesives, the retention of saliva sprayed first was decreased than denture adhesive alone, but it didn't have significant differences. Whenever saliva sprayed repeated, the retention was decreased significantly than saliva sprayed first (P < .05). In each denture adhesives, vertical retentive force was highest than lateral and anterior-posterior retentive forces, and anterior-posterior retentive force was higher than lateral retentive force. This results were significantly different (P < .05). Significant differences of the retentive ability among two denture adhesives were not observed. CONCLUSION: From the results, use of the denture adhesives resulted in improved retentive ability of denture. Especially retentive force was highest in vertical direction.
Adhesives
;
Denture Bases
;
Denture, Complete
;
Dentures
;
Retention (Psychology)
;
Saliva
;
Silicones
;
Tensile Strength
10.Blastic Plasmacytoid Dendritic Cell Neoplasm Presenting as Erythematous Nodules with Gallbladder Involvement.
Sook Hyun KONG ; Seok Hyun HAN ; Ho Seok SUH ; Yu Sung CHOI
Annals of Dermatology 2017;29(4):501-503
No abstract available.
Dendritic Cells*
;
Gallbladder*