1.Pigmented Spindle Cell Nevus in a Child.
Sang Yoon LEE ; Jae Wan GO ; Hyun Ok SON ; Sin Wook CHUN ; Byung In RO ; Han Kyoung CHO
Korean Journal of Dermatology 2014;52(11):824-825
No abstract available.
Child*
;
Humans
;
Nevus, Spindle Cell*
2.Linear Psoriasis Localized on Unilateral Arm - A Rare Variant of Psoriasis.
Shin Han KIM ; Sang Yoon LEE ; Jae Wan GO ; Hyun Ok SON ; Sang Yeop YI ; Han Kyoung CHO
Korean Journal of Dermatology 2012;50(4):377-380
Psoriasis vulgaris is one of the most common skin diseases in the world, which is recognized as an autoimmune disease that is caused by genetic and environmental factors. Plaque, guttate, pustular form, and psoriatic erythroderma are known as classical feature of psoriasis with tendency as generalized or sporadic appearance. There are some cases of uncommon forms in the shape and distribution, as nevoid and linear psoriasis. Linear psoriasis is a rare entity and thought as a variant of psoriasis, but its existence is still in debate. Herein, we report an interesting case of 19-year old Korean man with psoriasis, occurring on the right arm, following the line of Blaschko in a linear form.
Arm
;
Autoimmune Diseases
;
Dermatitis, Exfoliative
;
Psoriasis
;
Skin Diseases
3.Evaluation of Nutrition Education for Preschool Children Using Picture-Questionnaire.
Saet Byol HONG ; Hae Ryun PARK ; Gyeong Ah GO ; Gye Ok JEONG ; Kyung Hee SONG
Korean Journal of Community Nutrition 2010;15(4):475-484
The purpose of this study was to evaluate the effect of the nutrition education on preschool children's nutrition knowledge and behaviors. The study subjects were preschool children attending J kindergarten located in Wonju. Each of the control group and the education group consisted of 49 children and the education group was exposed to nutrition education while the control group did not. The nutrition education intervention lasted 9 weeks weekly basis. The t-test for the homogeneity of each group showed no meaningful difference at the beginning point of nutrition education. After nutrition education a test of nutrition knowledge using picture-questionnaire was carried out by the researcher for the subjects of education group and control group and the caretakers of the education group were offered self-administered questionnaire on the changes in children's dietary behaviors. The results of the study were as follows: 1. Nutrition education intervention showed a meaningful difference in children's understanding nutrition; the kinds and function of food, the relationship between food and body, the function of nutrients and enhanced their idea on hygiene compared to the control group (p < p.005). 2. However, nutrition education intervention made no statistically meaningful difference in children's dietary behaviors such as having breakfast, keeping balanced diet, washing hands before meals, saying "thanks" before and after meals, cleaning the table after meals, brushing teeth after meals and so on. Therefore, we found that it is hard to expect children to correct their dietary behaviors in such a short period of 9 weeks and nutrition education for preschool children should be offered to caretakers at the same time.
Breakfast
;
Child
;
Child, Preschool
;
Diet
;
Hand
;
Humans
;
Hygiene
;
Meals
;
Surveys and Questionnaires
;
Tooth
4.A Case of Meconium Peritonitis Diagnosed by Prenatal Ultrasonography.
Tae Sung HA ; Ki Hwan KIM ; Jae Seong SEO ; Myung Sup JO ; Ok GO ; Kyung Ran ZOO ; Joo Wook KIM
Korean Journal of Obstetrics and Gynecology 1997;40(7):1502-1506
Meconium peritonitis is a non-bacterial foreign body and chemical peritonitis caused by meconium contamination resulting from bowel perforation during late intrauterine or early neonatal periods. Prenatal ultrasonographic diagnosis of the meconium peritonitis provides the preparation for proper management and decreasing motality and morbidity of the neonate. We have experienced a case of meconium peritonitis diagnosed by ultrasonography at 34+4 gestational weeks and presented this case with a brief review of the literatures.
Diagnosis
;
Foreign Bodies
;
Humans
;
Infant, Newborn
;
Meconium*
;
Peritonitis*
;
Ultrasonography
;
Ultrasonography, Prenatal*
5.A case of chondroid syringoma with folliculosebaceous-apocrine differentiation.
Jeong Eun YANG ; Jae Kyung GO ; Kee Young ROH ; Suk Jin KANG ; Hyung Ok KIM
Korean Journal of Dermatology 2000;38(12):1673-1675
Chondroid syringoma is referred as mixed tumor because it has epithelial structure and mesenchymal elements. Mixed tumors could be divided into two distinct types, eccrine and apocrine. Mixed tumor with follicular, sebaceous and apocrine differentiation is considered as an expression of the common embryologic origin of elements of the folliculosebaceous-apocrine unit. A 32-year old manpresented with an asymptomatic firm erythematous nodule on the left cheek. Histologically, it showed typical features of chondroid syringoma with tubules exhibiting branching and cystic dilatation in the myxoid and chondroid stroma. Our case is unique in that the tumor arose from follicular infundibulum with follicular, sebacesous and apocrine differentiation.
Adenoma, Pleomorphic*
;
Adult
;
Cheek
;
Dilatation
;
Humans
6.Leukocytoclastic Vasulitis Induced by Methoxy Polyethylene Glycol-Epoetin Beta.
Sang Yoon LEE ; Jae Wan GO ; Shin Han KIM ; Hyun Ok SON ; Han Kyoung CHO
Korean Journal of Dermatology 2013;51(1):49-52
Methoxy polyethylene glycol-epoetin beta (Mircera(R), Roche), a third-generation erythropoiesis-stimulating agent (ESA) is known as a continuous erythropoietin receptor activator (CERA). In patients with anemia associated with chronic kidney disease (CKD), it is administered intravenously or subcutaneously. Treatment-related adverse events induced by methoxy polyethylene glycol-epoetin beta occurred in 6%. Hypertension, diarrhea and nasopharyngitis were the most commonly reported adverse events. Cutaneous adverse reactions are rarely experienced with methoxy polyethylene glycol-epoetin beta including maculopapular eruption, facial erythema, and tinea pedis. To the best of our knowledge, no cases of leukocytoclastic vasculitis associated with methoxy polyethylene glycol-epoetin beta have ever been published in medical literature. Herein, we report on a case of leukocytoclastic vasulitis induced by methoxy polyethylene glycol-epoetin beta in a patient with anemia associated with chronic kidney disease.
Anemia
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Diarrhea
;
Erythema
;
Erythropoietin
;
Humans
;
Hypertension
;
Nasopharyngitis
;
Polyethylene
;
Polyethylene Glycols
;
Receptors, Erythropoietin
;
Renal Insufficiency, Chronic
;
Tinea Pedis
;
Vasculitis
;
Vasculitis, Leukocytoclastic, Cutaneous
7.Giant Congenital Melanocytic Nevus with Multiple Satellite Lesions in a Korean Woman with Mental Retardation.
Hyun Ok SON ; Jae Wan GO ; Sang Yoon LEE ; Shin Han KIM ; Han Kyoung CHO
Korean Journal of Dermatology 2013;51(3):185-188
Giant congenital melanocytic nevi (GCMN) are defined as melanocytic nevi that are greater than 20 cm in largest dimension at birth. GCMN is a relatively rare condition, affecting approximately 1 in 20,000 newborns. Patients with GCMN on the posterior axis and in the presence of many satellite nevi are associated with neurocutaneous melanosis. A 37-year-old female with mental retardation had dark brown nevi with hair on her back (paraspinal) and on her lower extremities. In addition, she has multiple satellite lesions distributed over her trunk and extremities. Herein, we present a case that demonstrates a relationship between CNS abnormality and multiple satellite nevus in GCMN patients with a review of the relevant literature.
Axis, Cervical Vertebra
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Extremities
;
Female
;
Hair
;
Humans
;
Infant, Newborn
;
Intellectual Disability
;
Lower Extremity
;
Melanosis
;
Neurocutaneous Syndromes
;
Nevus
;
Nevus, Pigmented
;
Parturition
8.The Senolytic Drug JQ1 Removes Senescent Cells via Ferroptosis
Seokhyeong GO ; Mikyung KANG ; Sung Pil KWON ; Mungyo JUNG ; Ok Hee JEON ; Byung-Soo KIM
Tissue Engineering and Regenerative Medicine 2021;18(5):841-850
BACKGROUND:
Ferroptosis is an iron-dependent, non-apoptotic programmed cell death. Cellular senescence contributes to aging and various age-related diseases through the expression of a senescence-associated secretory phenotype (SASP). Senescent cells are often resistant to ferroptosis via increased ferritin and impaired ferritinophagy. In this study, we investigated whether treatment with JQ1 could remove senescent cells by inducing ferroptosis.
METHODS:
Senescence of human dermal fibroblasts was induced in vitro by treating the cells with bleomycin. The senolytic effects of JQ1 were evaluated using a SA-β gal assay, annexin V analysis, cell counting kit-8 assay, and qRT-PCR. Ferroptosis following JQ1 treatment was evaluated with qRT-PCR and BODIPY staining.
RESULTS:
At a certain range of JQ1 concentrations, JQ1 treatment reduced the viability of bleomycin-treated cells (senescent cells) but did not reduce that of untreated cells (non-senescent cells), indicating that JQ1 treatment can selectively eliminate senescent cells. JQ1 treatment also decreased SASP expression only in senescent cells. Subsequently, JQ1 treatment reduced the expression of ferroptosis-resistance genes in senescent cells. JQ1 treatment induced lipid peroxidation in senescent cells but not in non-senescent cells.
CONCLUSION
The data indicate that JQ1 can eliminate senescent cells via ferroptosis. This study suggests ferroptosis as a new mechanism of senolytic therapy.
9.The Senolytic Drug JQ1 Removes Senescent Cells via Ferroptosis
Seokhyeong GO ; Mikyung KANG ; Sung Pil KWON ; Mungyo JUNG ; Ok Hee JEON ; Byung-Soo KIM
Tissue Engineering and Regenerative Medicine 2021;18(5):841-850
BACKGROUND:
Ferroptosis is an iron-dependent, non-apoptotic programmed cell death. Cellular senescence contributes to aging and various age-related diseases through the expression of a senescence-associated secretory phenotype (SASP). Senescent cells are often resistant to ferroptosis via increased ferritin and impaired ferritinophagy. In this study, we investigated whether treatment with JQ1 could remove senescent cells by inducing ferroptosis.
METHODS:
Senescence of human dermal fibroblasts was induced in vitro by treating the cells with bleomycin. The senolytic effects of JQ1 were evaluated using a SA-β gal assay, annexin V analysis, cell counting kit-8 assay, and qRT-PCR. Ferroptosis following JQ1 treatment was evaluated with qRT-PCR and BODIPY staining.
RESULTS:
At a certain range of JQ1 concentrations, JQ1 treatment reduced the viability of bleomycin-treated cells (senescent cells) but did not reduce that of untreated cells (non-senescent cells), indicating that JQ1 treatment can selectively eliminate senescent cells. JQ1 treatment also decreased SASP expression only in senescent cells. Subsequently, JQ1 treatment reduced the expression of ferroptosis-resistance genes in senescent cells. JQ1 treatment induced lipid peroxidation in senescent cells but not in non-senescent cells.
CONCLUSION
The data indicate that JQ1 can eliminate senescent cells via ferroptosis. This study suggests ferroptosis as a new mechanism of senolytic therapy.
10.Effect of Low-Molecular-Weight Heparin on Anticoagulation and Lipid Profiles in Hemodialysis Patients.
Joo Hyun PARK ; Mi Kyoung KIM ; Gae Ja GO ; Myung Ah LEE ; Byung Soo KIM ; Young Ok KIM ; Sun Ae YOON ; Yong Soo KIM ; Byung Kee BANG
Korean Journal of Nephrology 1999;18(1):134-140
Although heparin has over the years proven to be a reliable anticoagulant, there are still several undesirable side effects including dyslipidemia. Several recent publications have suggested that a low-molecular-weight heparin(LMWH) is superior to conventional heparin because it causes less side effects and has beneficial effects on lipid parameters. But the results of the study about lipid parameters are controversial. We conducted a prospective study to evaluate the efficacy, safetey and effect of LMWH on lipid parameters as an anticoagulant in hemodialysis therapy. 2500 a x a IU of LMWH(Fragmin ) were given to 51 maintenance hemodialysis patients (age:49.9+/-16.1, M:F=33:18) just before each dialysis for consecutive 12 hemodialysis. And 16 patients out of 51 patients were given for 6 months to compare the changes of lipid parameters with those in 22 patients with conventional heparin. The mean venous compression time and the degree of clot deposition in dialyzer were similar in both LMWH and conventional heparin group. The heparin concentration via anti-factor Xa-specific clotting method (Heptest ) in both groups was similar(0.64+/-0.24 vs 0.54+/-0.18IU/ml at 15 min, 0.32+/-0.13 vs. 0.26+/-0.24 IU/ml at 4 hours after starting hemodialysis). The hematologic parameters such as hemoglobin and platelet count level did not show any differences between the two types of heparin. The level of triglyceride was significantly decreased after 6 month by the LMWH therapy(177.6+/-60.9 vs 145.9+/-85.5mg/dl, P<0.05) but was not changed by the conventional heparin therapy(150.6+/-54.6 vs. 176.6+/-64.6, P=0.16). The level of HDL were significantly changed in both group(32.1+/-11.6 vs. 37.9+/-9.7mg/dl, P<0.05 in LMWH group , 40.4+/-11.9 vs. 33.7+/-7.8mg/dl, P<0.05 in conventional heparin group). The levels of total cholesterol and LDL-cholesterol were decreased in LMWH group but statistically insignificant. We conclude that LMWH is a suitable alternative to unfractionated conventional heparin for anticoagulation therapy and has beneficial effects on the lipoprotein profile in hemodialysis patients.
Cholesterol
;
Dalteparin
;
Dialysis
;
Dyslipidemias
;
Heparin
;
Heparin, Low-Molecular-Weight*
;
Humans
;
Lipoproteins
;
Platelet Count
;
Prospective Studies
;
Renal Dialysis*
;
Triglycerides