1.Effects of MK-801, CNQX, Cycloheximide and BAPTA-AM on Anoxic Injury of Hippocampal Organotypic Slice Culture.
Soo Hyeon MOON ; Taek Hyon KWON ; Youn Kwan PARK ; Heung Seob CHUNG ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(8):1008-1018
No abstract available.
6-Cyano-7-nitroquinoxaline-2,3-dione*
;
Cycloheximide*
;
Dizocilpine Maleate*
2.A Case of SVC Obstruction in Behcet's Syndrome.
Chan Hee LEE ; Hong Woo LEE ; Jun Keun JUNG ; Hyeun Young PARK ; Jun Han SHIN ; Jun KWAN ; Hwark Moon KWAN ; Hyeun Soung KIM ; Choon Shik YOUN
Korean Circulation Journal 1993;23(6):946-952
The clinical triad of relapsing iritis, ulcers of the mouth and genitalia was first described in 1939 by Hulusi Behcet. This entity, originally confined to the above triad of symptoms appears to be systemic disease manifested by skin lesion, thrombophlebitis, neurologic, cardiovascular or visceral symptoms. The vascular involvement in Behcet's syndrome has been reported since Mischima first described a case in 1961, four types of vascular lesion are freuqnetly observed most commonly on the inferior or superior vena cava. Treatments consist of anticoagulation and administering oral steroids. We report a case of SVC obstruction in 36 years old female patient with Behcet's syndrome.
Adult
;
Behcet Syndrome*
;
Female
;
Genitalia
;
Humans
;
Iritis
;
Mouth
;
Skin
;
Steroids
;
Thrombophlebitis
;
Ulcer
;
Vena Cava, Superior
3.Calcified Chronic Subdural Hematoma:Late Sequele of Shunt Operation in a Child with Hydrocephalus: Case Report.
Juno PARK ; Taek Hyun KWON ; Youn Kwan PARK ; Hung Seob CHUNG ; Hoon Kap LEE ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(7):968-972
No abstract available.
Child*
;
Humans
;
Hydrocephalus*
4.Effects of PCLS-2 in Regulation of Rabbit Corpus Cavernosum Smooth Muscle Tone.
Jong Kwan PARK ; Jung Ui KIM ; Kyung Woo CHO ; Sang Kyi LEE ; Youn Chul KIM ; Ho Seub LEE
Korean Journal of Urology 2001;42(2):159-165
PURPOSE: Relaxation of the penile cavernosum smooth muscle is a critical event in erection. Artemisia iwaymogi(AI) is a perennial herb growing in Korea. The aerial parts have been used in folk medicine. Bioassay-guided fractionation of an H2O extract of AI has furnished an inhibitory substance (PCLS-2). We investigated compound extracted in the rabbit corporal cavernosum smooth muscle. MATERIALS AND METHODS: Bioassay-guided fractionation of an H2O extract was used. A strip of rabbit corpus cavernosum was mounted in an organ chamber to measure the isometric tension. PCLS-2 compound induced relaxations were evaluated by in vitro study using muscarinic receptor blocker atropine (ATR), cyclo-oxygenase inhibitor indomethacin, nitric oxide synthase (NOS) ihibitor Nitro-L Arginine-Methyl Ester (NAME), guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin 1-one (ODQ), intrinsic neurotransmission inhibitor tetrodotoxin (TTX), or/and potassium channel blockers. RESULTS: PCLS-2 showed relaxation in a dose-dependent manner. Atropine, Indomethacin, NAME, ODQ, TTX, glibenclamide, tetraethylammonium, 4-aminopyridine, charybdotoxin, or apamin did not inhibit the relaxation induced by PCLS-2 compound. CONCLUSIONS: The present results suggest that the PCL-2 compound has effect of relaxation of corpus cavernosum smooth muscle and the relaxation was not involved muscarinic receptor, nitric oxide, prostaglandin, potassium channels and intrinsic neurotransmission. Other mechanisms may by involved in the PCLS-2 induced relaxation in the rabbit corpus cavernosum smooth muscle.
4-Aminopyridine
;
Apamin
;
Artemisia
;
Atropine
;
Charybdotoxin
;
Glyburide
;
Guanylate Cyclase
;
Indomethacin
;
Korea
;
Medicine, Traditional
;
Muscle, Smooth*
;
Nitric Oxide
;
Nitric Oxide Synthase
;
Potassium Channel Blockers
;
Potassium Channels
;
Prostaglandin-Endoperoxide Synthases
;
Receptors, Muscarinic
;
Relaxation
;
Synaptic Transmission
;
Tetraethylammonium
;
Tetrodotoxin
5.Hemangioblastoma of the Conus Medullaris : Case Report.
Soo Hyeon MOON ; Se Hoon KIM ; Taek Hyon KWON ; Youn Kwan PARK ; Heung Seob CHUNG ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(6):836-840
No abstract available.
Conus Snail*
;
Hemangioblastoma*
6.Hemangioblastoma of the Conus Medullaris : Case Report.
Soo Hyeon MOON ; Se Hoon KIM ; Taek Hyon KWON ; Youn Kwan PARK ; Heung Seob CHUNG ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(6):836-840
No abstract available.
Conus Snail*
;
Hemangioblastoma*
7.Emergency Trephination Site of Acute Subdural Hematoma.
Soo Hyeon MOON ; Geun Hoe KIM ; Taek Hyun KWON ; Youn Kwan PARK ; Hung Seob CHUNG ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(5):659-663
No abstract available.
Emergencies*
;
Hematoma, Subdural, Acute*
;
Trephining*
8.Osteoclasts in the Inflammatory Arthritis: Implications for Pathologic Osteolysis
Youn Kwan JUNG ; Young Mo KANG ; Seungwoo HAN
Immune Network 2019;19(1):e2-
The enhanced differentiation and activation of osteoclasts (OCs) in the inflammatory arthritis such as rheumatoid arthritis (RA) and gout causes not only local bone erosion, but also systemic osteoporosis, leading to functional disabilities and morbidity. The induction and amplification of NFATc1, a master regulator of OC differentiation, is mainly regulated by receptor activator of NF-κB (RANK) ligand-RANK and calcium signaling which are amplified in the inflammatory milieu, as well as by inflammatory cytokines such as TNFα, IL-1β and IL-6. Moreover, the predominance of CD4+ T cell subsets, which varies depending on the condition of inflammatory diseases, can determine the fate of OC differentiation. Anti-citrullinated peptide antibodies which are critical in the pathogenesis of RA can bind to the citrullinated vimentin on the surface of OC precursors, and in turn promote OC differentiation and function via IL-8. In addition to adaptive immunity, the activation of innate immune system including the nucleotide oligomerization domain leucine rich repeat with a pyrin domain 3 inflammasome and TLRs can regulate OC maturation. The emerging perspectives about the diverse and close interactions between the immune cells and OCs in inflammatory milieu can have a significant impact on the future direction of drug development.
Adaptive Immunity
;
Antibodies
;
Arthritis
;
Arthritis, Rheumatoid
;
Calcium Signaling
;
Cytokines
;
Gout
;
Immune System
;
Inflammasomes
;
Interleukin-6
;
Interleukin-8
;
Leucine
;
Osteoclasts
;
Osteolysis
;
Osteoporosis
;
T-Lymphocyte Subsets
;
Vimentin
9.Krukenberg Tumor Presenting with Brain Metastasis: A Case Report.
Taek Hyun KWON ; Tai Hyoung CHO ; Dong Jun LIM ; Jung Yul PARK ; Youn Kwan PARK ; Yong Gu CHUNG ; Hung Seob CHUNG ; Jung Keun SUH
Journal of Korean Neurosurgical Society 2000;29(9):1267-1270
No abstract available.
Brain*
;
Krukenberg Tumor*
;
Neoplasm Metastasis*
10.Post-Traumatic Cerebral Infarction.
Bo Yeol MIN ; Youn Kwan PARK ; Yong Gu CHUNG ; Hung Seob CHUNG ; Jung Keun SUH ; Hoon Gap LEE ; Ki Chan LEE ; Jung Wha CHU
Journal of Korean Neurosurgical Society 1990;19(10-12):1369-1377
We report a series of 19 consecutive patients with post-traumatic cerebral infarction. Post-traumatic cerebral infarction(PTCI) was diagnosed by CT within 24 hours of admission in 6 cases and up to 14 days after admission in 13 cases of 1092 patients who required cranial CT for trauma during the period. The frequency, vaascular territories, cause, and mortality rate of post traumatic cerebral infarction were discussed.
Cerebral Infarction*
;
Humans
;
Mortality