1.Two treatment approach to skeletal Class III : A case report on sisters.
Korean Journal of Orthodontics 1999;29(3):327-337
Patients with skeletal class III can be successfully treated by either orthognathic surgery or orthodontic treatment owing to unavoidable circumstances. Sisters were treated, elder sister by orthognathic surgery and younger one by compromised treatment. For the ideal treatment goal, orthognathic surgery will be inevitable in skeletal problem case, but by the patient`s private situations orthodontist cannot help doing compromised treatment. It could be another option if correct biomechanical approach is used.
Humans
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Orthognathic Surgery
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Siblings*
3.Human Physiological Models of Insomnia.
Sleep Medicine and Psychophysiology 2009;16(1):5-9
Relatively little is known about the neurobiology of insomnia, despite its wide prevalence and broad medical impact. Although much is still to be learned about the pathophysiology of the disorder, identification, systematic assessment, and appropriate treatment are clearly beneficial to patients. Recent research, using quantitative EEG, polysomnography (PSG), multiple sleep latency test (MSLT) and neuroimaging techniques, suggests that some broad areas can be identified as possible pathophysiological models. Sleep-wake homeostat model hypothesizes a failure in homeostatic regulation of sleep, an attenuated increase in sleep drive with time awake, and/or defective sensing of sleep need. Circadian clock model hypothesizes a dysfunctional circadian clock, resulting in changes in the timing of sleep-wake propensity that are incompatible with normal sleep. Intrinsic sleep-wake state mechanism model suggests that abnormal function of insomnia comprises the systems responsible for expression of the sleep states themselves. Extrinsic over-ride mechanism (stress-response) model suggests that insomnia reflects the consequences of overactivity of one of the systems considered "extrinsic" to normal sleep-wake control. Many current therapies for insomnia are based on these physiological models. Several attempts have been made to create a physiological model that would explain this disorder and could be used as a foundation for treatment. However, it appeared that no model can fully explain and clarify all aspects of insomnia. Future research should be necessary to expand our knowledge on the biological dimensions of insomnia.
Circadian Clocks
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Electroencephalography
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Humans
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Neurobiology
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Neuroimaging
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Polysomnography
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Prevalence
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Sleep Initiation and Maintenance Disorders
4.A Case of Edward Syndrome.
Hyun Hwa KIM ; Hyun Sook PARK ; Young Hee YU ; Hyun Sook LEE
Journal of the Korean Pediatric Society 1983;26(7):712-716
No abstract available.
5.Cloning and characterization of Giardia intestinalis cyclophilin.
Hak Sun YU ; Hyun Hee KONG ; Dong Il CHUNG
The Korean Journal of Parasitology 2002;40(3):131-138
The cyclophilins (Cyps) are family members of proteins that exhibit peptidylprolyl cis-trans isomerase (PPIase, EC 5.2.1.8) activity and bind the immunosuppressive agent cyclosprin A (CsA) in varying degrees. During the process of random sequencing of a cDNA library made from Giardia intestinalis WB strain, the cyclophilin gene (gicyp 1) was isolated. An open reading frame of gicyp 1 gene was 576 nucleotides, which corresponded to a translation product of 176 amino acids (Gicyp 1). The identity with other Cyps was about 58-71%. The 13 residues that constituted the CsA binding site of human cyclophilin were also detected in the amino acid sequence of Gicyp 1, including tryptophan residue essential for the drug binding. The single copy of the gicyp 1 gene was detected in the G. intestinalis chromosome by southern hybridization analysis. Recombinant Gicyp 1 protein clearly accelerated the rate of cis--
6.Primary Carcinoma of the Gallbladder: An Analysis of 34 Cholecystectomy Cases with Special Reference to Metaplastic Changes.
Eun Sil YU ; Eui Keun HAM ; Yong Hyun PARK
Korean Journal of Pathology 1986;20(4):453-461
Primary gallbladder carcinoma is generally assumed as uncommon but dismal malignancy. Only sporadic studies about pathologic features of the gallbladder carcinoma have drawn pathologists attention especially in association with cholelithiasis. Currently, we have focused much on the role of metaplastic changes in diseased gallbladders including cholecystitis with or without cholelithiasis, and raised its implication in the development of benign or malignant neoplasm. The authors reviewed 34 cholecystectomy cases with primary gallbladder carcinoma, and their histologic findings were analyzed with reference to the association of metaplastic changes both in tumor and adjacent nonneoplastic mucosal epithelium. Association with gallstones and metaplastic changes in the surrounding nontumorous mucosa is more frequent in intestinal typen than in non-intestinal type (P<0.05). Gallstones may play a role of irritant stimuli to the gallbladder mucosa which can be eventually reconstructed with more resistant cell type. And the subsequent increase in absorptive capacity and accumulation of carcinogenic substance may result in malignant transformation of (reserve) cells in replication zone. At this time we can assume that association of cholelithiasis and presence of metaplastic changes are in parallel relationshop in intestinal type adenocarcinoma. Intestinal type adenocarcinomas are usually papillary (72.7%) especially in superficial portion, but deeper area also shows infiltrative growth focally. This finding is comparable to intestinal type gastric carcinoma which represents frequently a polypoid and papillary growth pattern. With these results, as in the gastric carcinoma it is strongly supported that intestinal metaplasia may play a major role as a precancerous lesion in a minor group of the gallbladder adenocarcinoma. Controlled prospective study on biological behavior of intestinal type adenocarcinoma should be followed with more cumulative cases.
Adenocarcinoma
7.The effect of fetal cord serum and protein supplementation on two cell mouse embryo development in vitro.
Yung Kyung LIM ; Mu Hyun RYU ; Yu Il LEE
Korean Journal of Obstetrics and Gynecology 1992;35(8):1210-1219
No abstract available.
Animals
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Embryonic Development*
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Embryonic Structures*
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Female
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Mice*
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Pregnancy
8.Public knowledge and attitudes toward depressive illness.
Yu Sang LEE ; Jung Hyun NAM ; Eyong KIM
Journal of Korean Neuropsychiatric Association 1992;31(4):716-734
No abstract available.
9.Mouse embryo culture as quality control for human in vitro fertilization.
Young Kyung LIM ; Hyun Jeong PARK ; Yu Il LEE
Korean Journal of Fertility and Sterility 1991;18(1):49-53
No abstract available.
Animals
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Embryonic Structures*
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Fertilization in Vitro*
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Humans*
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Mice*
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Quality Control*
10.Sclerosing Stromal Tumor of the Ovary: A report of 3 cases.
Eun Sil YU ; Hyun Soon LEE ; Geung Hwan AHN
Korean Journal of Pathology 1985;19(1):102-106
Three cases of sclerosing stromal tumor of the ovary are presented. All three patients were nulliparous young wemen of 23~25 years of age, presenting with menstrual irregularity for 6 months to 4 years. Grossly the tumors ranged in size from 8 to 22cm in greatest diameter, showing gray white to yellow solid or predominantly cystic tissue with serous fluid. The common microscopic finding was that of cellular areas admixed with densel fibrous and/or edematous tissue, presenting pseudolobular appearance. Two types of tumor cells were rounded cells with clear vacuolated cytoplasm and less numerous spindle shaped cells. Postoperative course was uneventful and menstrual irregularity disappeared postoperatively. In case 2, the patient got pregnant after 1 year and 4 months. This clinical course suggests that sclerosing stromal tumor of the ovary may be endocrinologically active.
Pregnancy
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Female
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Humans