1.Changes of Various Epidermal Enzymatic Activities of Diabetic patients.
Seung Hun LEE ; Hyung Soon LEE ; Eung Ho CHOI ; Michael J IM
Korean Journal of Dermatology 1994;32(2):217-222
BACKGROUND: In our previous report, we observed the increaseed epidermal glucose concentrations and decreased hexokinase actiuities of diabetic patients which were ciimpared to those of normal individuals. And we considered that, there were some derrangement of lipid metabolism and glycolysis of diabetic epidermis. OBJECTIVES: This study wns planed to prove the above possible changes of lipid metabolism and glycolysis of diabetic epidermis. METHODS: The epidermal enzymatic activties of glucose-6-phophate dehydrogenase(G6PDH), phosphofructokinase(PFK), 1-glycerophosphate dehydrogenase(GOPDH) and b-hydroxybutyryl CoA dehydrogenase(HBDH) were assayed in the skin samples obtained friom diabetic patients and normal individuals by the fluorometric: method. RESULTS: Teh epidermal PFK activities of diabetic patients were decreased(3.49+1.35(mmole/hr/kg dry weight)) compared to that of normal individuals(5.00+0.56(mmcle/hr/kg dry weight))(p<0.05). The epidermal HBDH activities of diabetic patients were decreised(0.28+0.10(mole/hr/kg dry weight)) compared to that of normal individuals(0.49+0.20(mole/hr/kg dry weight)(p<0.01). The mean epidermal G6PDH activity of diabetic patients was decreasec. compased to that of normal individuals, but there was no statisical significance. The mean epidermal 3OPDH activittes of diabetic patients and normal individual; showed no significant difference. CONCLUSION: We consider that the decreased epidermal HBDH actiities of diabetic patients can decrease keton body formatiori, and the abnormal glycolysis can exist in the diabetic epidermis because the decreased enzymatic activities of diabetic epidermal PFK may decrease the velocity of glycolysis.
Diabetes Mellitus
;
Epidermis
;
Glucose
;
Glycolysis
;
Hexokinase
;
Humans
;
Lipid Metabolism
;
Skin
2.Early Linguistic Developments of Simultaneous Bilateral Cochlear Implantees.
Michelle J SUH ; Hyun Jin LEE ; Hyun Seung CHOI
Korean Journal of Otolaryngology - Head and Neck Surgery 2018;61(12):650-657
BACKGROUND AND OBJECTIVES: The present study aimed to compare receptive and expressive language development in children who have undergone simultaneous bilateral cochlear implantation (SCI) and those who have undergone bimodal stimulation (unilateral CI+ hearing aid). SUBJECTS AND METHOD: In a retrospective analysis of clinical data, 15 pediatric patients who have received SCI and nine patients who have received bimodal stimulation (BM group) were enrolled. CI was performed for all patients at 24 months of age. Category of Auditory Performance (CAP) scores, Infant-Toddler Meaningful Auditory Integration Scale (IT-MAIS) scores, and developmental quotients (DQ) for expressive and receptive language were compared between the groups at 12 month of follow-up. The Percentage of Consonants Correct (PCC) of children evaluated at 4 years old was also compared. RESULTS: At 12 months of follow-up, significantly greater improvements in CAP scores (Δ4.25±0.5) were noted in the SCI group compared to the BM group (Δ3.56±0.88, p=0.041). Significantly greater improvements in IT-MAIS scores were also noted in the SCI group (Δ36.17±4.09) than in the BM group (Δ30.17±2.91, p=0.004). The DQ of receptive language was higher in the SCI group than in the BM group (87.6±15.4% vs. 75.5±12.0%, p=0.023) at 12 months of follow-up. Moreover, early SCI was associated with better receptive language skills. PCC index of children at 4 years old was higher in the SCI group than in the BM group (88.5±13.2% vs. 62±15.8%, p=0.014). Earlier SCI was associated with even greater improvements. CONCLUSION: Bilateral SCI is associated with significant improvements in language development when compared with bimodal stimulation. Earlier SCI was associated with better outcomes.
Child
;
Cochlear Implantation
;
Cochlear Implants
;
Follow-Up Studies
;
Hearing
;
Humans
;
Language Development
;
Linguistics*
;
Methods
;
Retrospective Studies
3.The Role of Viruses in the Inception of Chronic Rhinosinusitis
Hyeon Seung LEE ; Sophia J VOLPE ; Eugene H CHANG
Clinical and Experimental Otorhinolaryngology 2022;15(4):310-318
Chronic rhinosinusitis (CRS) is a complex inflammatory disorder that affects between 2% and 16% of adults in the United States, with estimated healthcare costs between 4 and 12 million USD. Viruses are a common etiologic factor for URIs, are frequently identified in the sinuses of patients with CRS, and trigger CRS exacerbations. Therefore, investigating the role of viruses provides an opportunity to identify their role in the pathogenesis of CRS. In this review, we identified the viruses frequently isolated in patients with CRS, as well as their associated immunologic responses and contributions to inflammation. Rhinovirus, parainfluenza virus, influenza virus, and respiratory syncytial virus are the viruses commonly found in patients with CRS. This information allows us to target pathways early in the pathogenesis of CRS, thereby playing a significant role in slowing the progression of this chronic disease.
4.Alzheimer's Disease and Stem Cell Therapy.
Sung S CHOI ; Sang Rae LEE ; Seung U KIM ; Hong J LEE
Experimental Neurobiology 2014;23(1):45-52
The loss of neuronal cells in the central nervous system may occur in many neurodegenerative diseases. Alzheimer's disease is a common senile disease in people over 65 years, and it causes impairment characterized by the decline of mental function, including memory loss and cognitive impairment, and affects the quality of life of patients. However, the current therapeutic strategies against AD are only to relieve symptoms, but not to cure it. Because there are only a few therapeutic strategies against Alzheimer's disease, we need to understand the pathogenesis of this disease. Cell therapy may be a powerful tool for the treatment of Alzheimer's disease. This review will discuss the characteristics of Alzheimer's disease and various available therapeutic strategies.
Alzheimer Disease*
;
Cell- and Tissue-Based Therapy
;
Central Nervous System
;
Humans
;
Memory Disorders
;
Neurodegenerative Diseases
;
Neurons
;
Quality of Life
;
Stem Cells*
;
Transplantation
5.The Effect of Combination Treatment with Oral Etretinate (Ro 10 - 9359) and Vitamin E on Psoriasis Vulgaris.
Sung Nack LEE ; Jung Bock LEE ; Chung Koo CHO ; Hae Eul LEE ; Soo Chan KIM ; Duck Hyun KIM ; Dong Sik BANG ; Seung Hun LEE ; Han Sung PARK ; Hong Il KOOK ; K B MYUNG ; C J KOH ; S I CHUN ; H J KIM ; D H KIM ; J H KIM
Korean Journal of Dermatology 1984;22(2):148-154
Etretinate(Ro 10-9359), an aromatic analogue of vitamin A acid, has been known to be effective in the treatment of psoriasis, Darier's disease, pityriasis rubra pilaris, ichthyosis, and palmoplantar keratoderma when administered orally. In this experiment, we compared the therapeutic and side effects between a group with high dose therapy(initially 75mg of etretinate a day) and an another group with low dose therapy(initially 40mg of etretinate a day). We also observed whether the pretreatment followed by combined treatment with vitamin E could potentiate the therapeutic effect as well as reduce the side effects of oral etretinate. This experiment comprised 102 moderate to severe psoriatic patients. The following results were obtained from this experiment. 1. Fifty-six among 92 patients(61%) who were treated with etretinate for more than 4 weeks showed good to excellent therapeutic effect. 2 The high dose therapy was more effective, but showed more side effects than low dose therapy. 3 Vitamin E did not potentiate the effect of etretinate. In low dose therapy, the pretreatment followed by combined treatment with vitamin E showed a tendency to reduce the side effects of etretinate.
Acitretin*
;
Darier Disease
;
Etretinate*
;
Humans
;
Ichthyosis
;
Keratoderma, Palmoplantar
;
Pityriasis Rubra Pilaris
;
Psoriasis*
;
Tretinoin
;
Vitamin E*
;
Vitamins*
6.Distal Tibial Articular Surface Angle in the Coronal Plane in Koreans.
Kyung Tai LEE ; Jin Su KIM ; Ki Won YOUNG ; J Young KIM ; Seung Do CHA ; Eung Soo KIM
Journal of Korean Foot and Ankle Society 2006;10(1):56-59
PURPOSE: The purpose of this study is to find out the normal distal tibial articular surface angle in coronal plane in Koreans. This would be helpful as the basic data for ankle reconstruction after trauma or deformity correction. MATERIALS AND METHODS: Weight bearing anteroposterior radiographs of 123 normal ankles were reviewed. A line parallel to the shaft of the tibia was made. Another line was drawn parallel to the articular surface of the distal tibia. The superolateral angle that subtended by these two lines was measured. RESULTS: There were 72 males and 51 females. The mean age overall was 35.7 years old. The mean age for males was 31.9 (28~36) years old. The mean age for females was 41.1 (37~45) years old. The mean distal tibial articular surface angle was 90.8 degrees. The mean distal tibial articular surface angle for males was 91.5 degrees and for females 89.9 degrees. CONCLUSION: The mean distal tibial articular surface angle in coronal plane for Koreans is 90.8 degrees. We can avoid the error of the varization at the ankle alignment when the correction was performed vertical or minimal valgus to tibia tuberosity axis in Korean people.
Ankle
;
Axis, Cervical Vertebra
;
Congenital Abnormalities
;
Female
;
Humans
;
Male
;
Tibia
;
Weight-Bearing
7.Modified Brostrom Operation for Revision Lateral Ankle Ligament Reconstruction.
Kyung Tai LEE ; Ki Won YOUNG ; J Young KIM ; Eung Soo KIM ; Seung Do CHA ; Shin Yi PARK
Journal of Korean Foot and Ankle Society 2004;8(2):149-152
PURPOSE: We assessed the clinical results of modified Brostrom procedure as a revision method after failure of a primary reconstruction. MATERIALS AND METHODS: This is a retrospective study of seven patients treated with Modified Brostrom procedure after failed lateral ankle ligament reconstruction between 1996 and 2002. Instability symptom developed average 4.7 month after the initial reconstruction surgery at other clinics. All patients had significant functional impairment before surgery and not responded to conservative protocols. Modified Brostrom procedure was applied to all patients. RESULTS: The average follow up was 51 months (18 to 84). Seven of eight patients had clinical stability following revision reconstruction, six patients (75%) returned to their previous functional level. American Orthopaedic Foot and Ankle Society ankle-hindfoot scores averaged 87.5. There is no difference in active or passive range of motion of plantar flexion or dorsiflexion when compared to the contralateral ankle. However, three patients were noted to have lost some degree of inversion when compated to contralateral ankle. Two patients had osteochondral lesion and multiple spurs and had pain around the ankle that prevented their full recovery. One patient complained of persistent pain which was considered complex regional pain syndrome. CONCLUSION: Though the outcome of the Modified Brostrom procedure as a method of revision surgery was less satisfactory compared to the results of primary ankle reconstruction, it would be an appropriate option when concomitant abnormalities were not accompanying.
Ankle*
;
Follow-Up Studies
;
Foot
;
Humans
;
Ligaments*
;
Range of Motion, Articular
;
Retrospective Studies
8.Menopausal Hormone Treatment and the Progression of Vascular Disease.
Seung Do CHOI ; Margaret J NACHTIGALL ; Emma M STEINBERG ; Hae Hyeog LEE ; Frederick NAFTOLIN
The Journal of Korean Society of Menopause 2010;16(2):71-78
Observational studies and laboratory research support cardioprotective effects of menopausal hormone treatment (MHT). However, cardioprotective effects of MHT were not confirmed by randomized clinical studies that were made up of subjects who were well-beyond the time of menopausal symptoms and were of advanced chronological age when they began hormone treatment (HT). The differences in study outcomes most likely reflect age-related differences in cardiovascular risk factors such as hypertension and metabolic syndromes. As well, data from the randomized clinical trial (RCT)s confirmed the presence of actual cardiovascular disease (CVD) in many of the RCT subjects prior to beginning HT. Therefore, beginning MHT early seems crucial since older women are at greater risk for the presence of risk factors and sub-clinical CVD. Older women also are possible targets of hormonally related thrombosis because of their underlying vascular disease. The need for early prophylaxis is convenient since most women seek treatment for symptoms within the first few years of menopause. This review addresses issues regarding optimization of the initiation of MHT for cardioprotection.
Aging
;
Atherosclerosis
;
Cardiovascular Diseases
;
Estrogens
;
Female
;
Humans
;
Hypertension
;
Menopause
;
Risk Factors
;
Thrombosis
;
Vascular Diseases
9.Menopausal Hormone Treatment and the Progression of Vascular Disease.
Seung Do CHOI ; Margaret J NACHTIGALL ; Emma M STEINBERG ; Hae Hyeog LEE ; Frederick NAFTOLIN
The Journal of Korean Society of Menopause 2010;16(2):71-78
Observational studies and laboratory research support cardioprotective effects of menopausal hormone treatment (MHT). However, cardioprotective effects of MHT were not confirmed by randomized clinical studies that were made up of subjects who were well-beyond the time of menopausal symptoms and were of advanced chronological age when they began hormone treatment (HT). The differences in study outcomes most likely reflect age-related differences in cardiovascular risk factors such as hypertension and metabolic syndromes. As well, data from the randomized clinical trial (RCT)s confirmed the presence of actual cardiovascular disease (CVD) in many of the RCT subjects prior to beginning HT. Therefore, beginning MHT early seems crucial since older women are at greater risk for the presence of risk factors and sub-clinical CVD. Older women also are possible targets of hormonally related thrombosis because of their underlying vascular disease. The need for early prophylaxis is convenient since most women seek treatment for symptoms within the first few years of menopause. This review addresses issues regarding optimization of the initiation of MHT for cardioprotection.
Aging
;
Atherosclerosis
;
Cardiovascular Diseases
;
Estrogens
;
Female
;
Humans
;
Hypertension
;
Menopause
;
Risk Factors
;
Thrombosis
;
Vascular Diseases
10.Trigger Toe in Soccer Player: A Case Report.
Kyung Tai LEE ; Ki Won YOUNG ; J Young KIM ; Seung Keun HWANG
Journal of Korean Foot and Ankle Society 2004;8(1):114-115
A 18-year-old male soccer player had painful triggering and occasional locking of the great toe caused by entrapment of the flexor hallucis longus tendon within the flexor sheath posterior to the right medial malleolus. After other treatment modalities failed, the condition was relieved by a surgical procedure that removed the nodule on the flexor hallucis longus tendon and the ganglion under flexor retinaculum. Tendon rupture was not found, although there was tendinitis.
Adolescent
;
Ganglion Cysts
;
Humans
;
Male
;
Rupture
;
Soccer*
;
Tendinopathy
;
Tendons
;
Toes*