1.A case of Diphyllobothrium latum infection.
Byung Yeon YU ; Ji Young HA ; Jae Ran YU
Journal of the Korean Academy of Family Medicine 1997;18(8):866-870
Human diphyllobolthriasis is chiefly caused by infection with Diphyllobothrium latum(D. latum) through eating raw or unproperly cooked fish such as salmon, trout or perch. D. latum is worldwidely distributed, but not a common parasite of humans, and its prevalence in Korea is not high. The first worm-proven case of D. latum infection was first reported in 1971 and about 30 cases have been reported in Korea until now. However, with the increasing popularity of eating raw salmon, trout and perch, this tapeworm infection tends to increase in Korea. Most of the patients infected by D. latum have not showed the specific symptoms and only non-specific gastrointestinal symptoms(anorexia, nausea, vomiting, diarrhea, abdominal pain). We report a case which includes a chain whitish, threadlike tapeworm segments spontaneously discharged in the patients stool. On reviewing the literature, the present case is the first report of D. latum infection by eating cultured salmon. The patient was treated with 600mg single dose of Praziquantel.
Cestoda
;
Cestode Infections
;
Diarrhea
;
Diphyllobothrium*
;
Eating
;
Humans
;
Korea
;
Nausea
;
Parasites
;
Perches
;
Praziquantel
;
Prevalence
;
Salmon
;
Trout
;
Vomiting
2.Effect of steroid and gonadotropin on the cumulus expansion and oocyte maturation in vitro.
Hoe Soon YU ; Jae Myeoung KIM ; Chung Soon BAIK ; Byung Hee SUH ; Jae LEE
Korean Journal of Obstetrics and Gynecology 1993;36(5):640-647
No abstract available.
Gonadotropins*
;
Oocytes*
3.Cryopreservation of hamster oocytes and its clinical uses.
Jae Myeoung KIM ; Byung Hee SUH ; Jae Hyun LEE ; Seung Hwan YU ; Kil Sheng CHUNG
Korean Journal of Fertility and Sterility 1991;18(1):81-87
No abstract available.
Animals
;
Cricetinae*
;
Cryopreservation*
;
Oocytes*
4.Screening tests in early detection of proximal deep venous thrombosis(DVT): prospective study.
Duk Yun CHO ; Jae Gon SEO ; Byung Yong YU ; Sung Churl LEE ; Tae Hoon KIM
The Journal of the Korean Orthopaedic Association 1992;27(5):1273-1283
No abstract available.
Mass Screening*
;
Prospective Studies*
5.Clinical Results of Bipolar Endoprosthesis
Key Yong KIM ; Hyung Ku YOON ; Duk Yun CHO ; Jae Gon SEO ; Byung Yong YU
The Journal of the Korean Orthopaedic Association 1985;20(2):291-298
In 1974, bipolar endoprosthesis was first introduced by Bateman & Giliberty. It has theoretical advantages including minimizing acetabular wear, possible reduction of incidence of stem loosening, lessening of dislocation and easy revision procedure. Various methods for the treatment of fracture of the femur neck have been developed & performed, but it is still called “the unsolved fracture” in certain situation. But the role of it as primary treatment of fracture of the femur neck continues to be controversial. Current clinical results encourage its continued use and expansion of indication. Authors reviewed and analysed 21 cases of bicentric endoprosthesis and 1 case of Giliberty endoprosthesis those have been operated at the Department of Orthopaedic Surgery, National Medical Center from 1981 to 1983. Following results were obtained, l. According to disorder distribution, 14 cases were neglected fracture of femur neck, 2 old fracture, 1 idiopathic femoral head necrosis and 2 avascular necrosis & 1 non-union complicated by femoral neck fracture. 2. Among 20 cases, 8 cases were operated within 1/2 1 month after injury and 6 cases within 1 3months 3. Harris lateral appmach was used in 16 cases (80%) and Modified Gibson approach in 4 cases (20%). There were no significant differences in morbidity during operation and postoperative complication. 4. We used femoral stems those head diameter was 22 and 32mm(Charnley & Miiller type) and head pieces those diameter was 48-51 mm in male and 44–48 mm in Ifemale. 5. 3 cases were stiff in inner bearing without acetabular erosion. 6. In 6 cases more than 2 years followup 1 degree CE angle of Wiberg was increased in 2 cases of youngage respectively without associated hip joint pain. 7. Although inclination of head piece was vertical in 8 cases, fracture and dislocation were not found. 8. The circumference of head piece and opposite femoral head was measured and compared. There were 12 cases (mean 12.6 mm) that of head piece larger than opposite femoral head and 3 cases smaller than opposite femoral head. 9. There was 4 cases of complication (3 patients) and still no reoperation and revision converted to T.H.R. 10. With regard to average 18 months of follow-up, 7 cases of 81–90 Harris hip-rating score, 6 of 91–100, 4 of 71–80 and 3 of 61–70.
Acetabulum
;
Dislocations
;
Femoral Neck Fractures
;
Femur
;
Femur Neck
;
Follow-Up Studies
;
Head
;
Hip Joint
;
Humans
;
Incidence
;
Male
;
Neck
;
Necrosis
;
Postoperative Complications
;
Reoperation
6.Localization of cytoskeletal proteins in Pneumocystis carinii by immuno-electron microscopy.
Jae Ran YU ; Jae Kyong PYON ; Min SEO ; Byung Suk JUNG ; Sang Rock CHO ; Soon Hyung LEE ; Sung Tae HONG
The Korean Journal of Parasitology 2001;39(1):13-21
Pneumocystis carinii causes serious pulmonary infection in immunosuppressed patients. This study was undertaken to observe the cytoskeletal proteins of P. carinii by immuno-electron microscopy. P. carinii infection was experimentally induced by immunosuppression of Sprague-Dawley rats for seven weeks, and their lungs were used for the observations of this study. The gold particles localized actin, tropomyosin, and tubulin. The actin was irregularly scattered in the cytoplasm of the trophic forms but was much more concentrated in the inner space of the cell wall of the cystic forms called the inner electron-lucent layer. No significant amount of tropomyosin was observed in either trophic forms or cystic forms. The tubulin was distributed along the peripheral cytoplasm and filopodia of both the trophic and cystic forms rather than in the inner side of the cytoplasm. Particularly, in the cystic forms, the amount of tubulin was increased and located mainly in the inner electron-lucent layer of the cell wall where the actin was concentrated as well. The results of this study showed that the cell wall of P. carinii cystic forms is a structure whose inner side is rich in actin and tubulin. The location of the actin and tubulin in P. carinii suggests that the main role of these proteins is an involvement in the protection of cystic forms from the outside environment by maintaining rigidity of the cystic forms.
Actins/analysis
;
Animals
;
Cytoskeletal Proteins/*analysis
;
Fungal Proteins/*analysis
;
Histocytochemistry
;
Microscopy, Immunoelectron
;
Pneumocystis/*chemistry/cytology
;
Rats
;
Rats, Wistar
;
Support, Non-U.S. Gov't
;
Tropomyosin/analysis
;
Tubulin/analysis
7.Clinical evaluation of a biphasic calcium phosphate grafting material in the treatment of human periodontal intrabony defects.
Min Jae LEE ; Byung Ock KIM ; Sang Joun YU
Journal of Periodontal & Implant Science 2012;42(4):127-135
PURPOSE: The aim of this study was to compare the clinical outcome of open flap debridement (OFD) with a biphasic calcium phosphate (BCP) graft to that of OFD without BCP graft for the treatment of intrabony periodontal defects (IBDs). METHODS: The study included 25 subjects that had at least one intrabony defect of 2- or 3-wall morphology and an intrabony component> or =4 mm as detected radiographically. Subjects were randomly assigned to treatment with (BCP group, n=14) or without BCP (OFD group, n=11). Clinical parameters were recorded at baseline and 6 months after surgery and included the plaque index, gingival index, probing depth (PD), clinical attachment level (CAL), and gingival recession (REC). A stringent plaque control regimen was enforced for all of the patients during the 6-month observation period. RESULTS: In all of the treatment groups, significant PD reductions and CAL gains occurred during the study period (P<0.01). At 6 months, patients in the BCP group exhibited a mean PD reduction of 3.7+/-1.2 mm and a mean CAL gain of 3.0+/-1.1 mm compared to the baseline. Corresponding values for the patients treated with OFD were 2.5+/-0.8 mm and 1.4+/-1.0 mm, respectively. Compared to OFD group, the additional CAL gain was significantly greater in the patients in BCP group (P=0.028). The additional PD reduction was significant for the BCP group (P=0.048). The REC showed a significant increase in both groups, and the amount of recession was significantly smaller in the BCP group than OFD group (P=0.023). In radiographic evaluation, the height of the bone fill in the BCP group was significantly greater than OFD group. CONCLUSIONS: The clinical benefits of BCP found in this study indicate that BCP may be an appropriate alternative to conventional graft materials.
Alveolar Bone Loss
;
Bone Transplantation
;
Calcium
;
Calcium Phosphates
;
Chronic Periodontitis
;
Debridement
;
Gingival Recession
;
Humans
;
Hydroxyapatites
;
Periodontal Index
8.Application of 'Writing for Healing' in Premedical Humanities Education.
Korean Journal of Medical Education 2012;24(3):189-196
There has been a recent tendency to attach special importance to writing education. Books on 'writing to heal' are being written in or translated into Korean. According to these texts, writing is a valuable tool for internal healing, depending on the mode of application. Writing can have positive effects and give hope to an individual or group, but it can also be a source of frustration and despair. Based on the distinct effects of writing, we cannot overemphasize the significance of writing education. Writing is generally taught during a premedical course that targets students who will eventually practice medicine. Many reports have examined immorality in medical students and health care providers, which is a reason that writing education is important for medical systems. 'Writing for Healing' is open to freshmen at Yonsei University Wonju College of Medicine. The aim of this subject is to help students identify and acknowledge internal diseases to lead a healthier life and eventually become positive and responsible health care providers. However, in addition to the vague definition of what 'healing' is, the concept of 'writing for healing' has not been defined. This paper attempts to define the concept of 'writing for healing' and considers what influences it can have on a humanities curriculum in medical colleges.
Curriculum
;
Frustration
;
Health Personnel
;
Humanities
;
Humans
;
Students, Medical
;
Writing
9.Tussilagone suppressed the production and gene expression of MUC5AC mucin via regulating nuclear factor-kappa B signaling pathway in airway epithelial cells.
Byung Soo CHOI ; Yu Jin KIM ; Yong Pill YOON ; Hyun Jae LEE ; Choong Jae LEE
The Korean Journal of Physiology and Pharmacology 2018;22(6):671-677
In the present study, we investigated whether tussilagone, a natural product derived from Tussilago farfara, significantly affects the production and gene expression of airway MUC5AC mucin. Confluent NCI-H292 cells were pretreated with tussilagone for 30 min and then stimulated with EGF (epidermal growth factor) or PMA (phorbol 12-myristate 13-acetate) for 24 h or the indicated periods. The MUC5AC mucin gene expression was measured by RT-PCR. Production of MUC5AC mucin protein was measured by ELISA. To elucidate the action mechanism of tussilagone, effect of tussilagone on PMA-induced NF-κB signaling pathway was investigated by western blot analysis. Tussilagone significantly inhibited the production of MUC5AC mucin protein and down-regulated the expression of MUC5AC mucin gene, induced by EGF or PMA. Tussilagone inhibited PMA-induced activation (phosphorylation) of inhibitory kappa B kinase (IKK), and thus phosphorylation and degradation of inhibitory kappa Ba (IκBα). Tussilagone inhibited PMA-induced phosphorylation and nuclear translocation of nuclear factor kappa B (NF-κB) p65. This, in turn, led to the down-regulation of MUC5AC protein production in NCI-H292 cells. These results suggest that tussilagone can regulate the production and gene expression of mucin by acting on airway epithelial cells through regulation of NF-κB signaling pathway.
Blotting, Western
;
Down-Regulation
;
Enzyme-Linked Immunosorbent Assay
;
Epidermal Growth Factor
;
Epithelial Cells*
;
Epithelium
;
Gene Expression*
;
Mucins*
;
NF-kappa B
;
Phosphorylation
;
Phosphotransferases
;
Tussilago
10.A Case of Vestibular Paroxysmia Offended by Vertebral Artery.
Byung Jae YU ; Se Hwan HWANG ; Dong Joon YOO ; Jae Hyun SEO
Korean Journal of Otolaryngology - Head and Neck Surgery 2012;55(6):386-389
Vestibular paroxysmia, which is caused by neurovascular cross-compression of the eighth cranial nerve, is characterized by recurrent vertiginous spells and other audiologic symptoms such as tinnitus, aural fullness and hearing impairment. Magnetic resonance image may show the eighth cranial nerve compression by vessels in the posterior fossa such as the anterior-inferior cerebellar, posterior-inferior cerebellar, basilar, or vertebral arteries. Medical therapy including carbamazepine, phenytoin or gabapentin and microvascular decompression of the eighth cranial nerve can be contemplated. Here, we report of a 51 year-old man who presented with recurrent vertigo attacks and tinnitus. His symptoms were aggravated by positional change. Videonystagmography and auditory brainstem response showed abnormal results. Magnetic resonance image showed the eighth cranial nerve compression caused by the vascular loop. The offending vessel was revealed as vertebral artery. He was treated with carbamazepine and showed no recurrent symptoms. We report this rare case with a review of the relevant literatures.
Amines
;
Carbamazepine
;
Cyclohexanecarboxylic Acids
;
Evoked Potentials, Auditory, Brain Stem
;
gamma-Aminobutyric Acid
;
Glycosaminoglycans
;
Hearing Loss
;
Magnetic Resonance Spectroscopy
;
Microvascular Decompression Surgery
;
Nerve Compression Syndromes
;
Phenytoin
;
Tinnitus
;
Vertebral Artery
;
Vertigo
;
Vestibulocochlear Nerve