1.Effect of bromocriptine on 6-hydroxydopamine-induced lipid peroxidation and cytotoxicity in vitro and in vivo.
Yong Sik KIM ; Sungho MAENG ; Chan Woong PARK
The Korean Journal of Physiology and Pharmacology 1998;2(5):565-572
The present study was to evaluate the protective effects of bromocriptine, which is known as D2 dopamine receptor agonist and used for the treatment of patients with Parkinson's disease (PD), on 6-hydroxydopamine (6-OHDA)-induced neurotoxicity in vitro and in vivo. Lipid peroxidation product (malondialdehyde; MDA) produced by the administration of 6-OHDA was profoundly reduced following the treatment of bromocriptine in a dose-dependent manner in rabbit brain homogenate. Quinone formation by 6-OHDA autoxidation was also attenuated, and its effect was as potent as other antioxidants. Pretreatment of bromocriptine reduced the cytotoxicity of 6-OHDA on SH-SY5Y neuroblastoma cell lines dose-dependently. The loss of striatal dopamine and its metabolite, DOPAC (dihydroxyphenylacetic acid) as well as increase of MDA production caused by intrastriatal injection of 6-OHDA was significantly recovered following the treatment of bromocriptine. The present study clearly showed that bromocriptine had a protective action against 6-OHDA-induced neurotoxicity. These results suggest that bromocriptine has the antioxidant properties, which could be another advantage for delaying the progress of Parkinson's disease.
3,4-Dihydroxyphenylacetic Acid
;
Antioxidants
;
Brain
;
Bromocriptine*
;
Cell Line
;
Dopamine
;
Dopamine Agonists
;
Humans
;
Lipid Peroxidation*
;
Neuroblastoma
;
Oxidopamine
;
Parkinson Disease
2.Curettage & Acrylic Cementation in Surgery of Giant Cell Tumors of Bone
Ki Soo KIM ; Sang Sik MIN ; Young Woong SONG
The Journal of the Korean Orthopaedic Association 1982;17(5):1025-1030
3 cases of giant cell tumor in the distal femur or upper tibia were treated by curettage and acrylic cement packing between October 1978 and May 1981. All were females. The postoperative courses were satisfactory with no recurrence or malignant change for periods of 16 months to 30 months. In one case, acrylic cement reinforced with tantalum wire was used because it is superior to acrylic cement alone in mechanical properties. The adventages of this method are: 1. The cautery effect of setting cement. 2. Avoidence of the need for large quantities of cancellous bone 3. The possibility of incorporating a prosthesis if the lesion is extensive. 4. Rapid mobilization. 5. Ease of early diagnosis of recurrence.
Cautery
;
Cementation
;
Curettage
;
Early Diagnosis
;
Female
;
Femur
;
Giant Cell Tumors
;
Giant Cells
;
Humans
;
Methods
;
Prostheses and Implants
;
Recurrence
;
Tantalum
;
Tibia
3.A Case of Behcet's Disease Associated with Intestinal Ulcers.
Eun Kyoung LEE ; Doo Hee YOON ; Tae Yoon KIM ; Chung Won KIM ; Woong Sik AHN
Korean Journal of Dermatology 1997;35(3):575-578
Behcets disease is a chronic systemic disease of unknown etiology, which is characterized by the recurrent orogenital ulcers, eye involvement and skin manifestations. In addition to the major symptoms, it includes arthritis, vasculitis, neurologic manifestations and gastrointestinal lesions. We report a case of Behcets disease associated with intestinal ulcers. The patient, a 45-year-old female, who had been treated under the diagnosis of Behcets disease for 4 years, presented with swallowing difficulty, vaginal discharge and persistent right lower abdominal pain. Colonoscopic examination showed multiple ulcers on the ileocecal region which is reported as the most common site of gastrointestinal Behcets disease. Gastrointestinal evaluation can be useful in diagnosis of Behcets disease, especially in a patient with gastrointestinal symptoms.
Abdominal Pain
;
Arthritis
;
Deglutition
;
Diagnosis
;
Female
;
Humans
;
Middle Aged
;
Neurologic Manifestations
;
Skin Manifestations
;
Ulcer*
;
Vaginal Discharge
;
Vasculitis
4.Permanent Preserving the Bony Fragments Digged Up from Haemi Nameless Martyrdom Holy Place Burial Sites.
Won Sik KIM ; O Yu KWON ; Chang Yong LEE ; Woong Ghi SHIN ; Soo Il KIM
Korean Journal of Physical Anthropology 1996;9(2):135-139
Bone materials diggd up from the Haemi nameless martyrdom holy place burial sites were severely broken into fragments of various size, clay matrix filled the bone marrow cavities, grass roots were spreaded into the periosteum and the fragments were very soft enough to be flaken. To make permanent specimens, bony fragments impregnated within unsaturated polyester resin with catalyzer MEKP, promotor 8% cobalt octoate, and UV absorber. Permanent specimens were so very transparent that all the macroscopic structures can be observed, and they were hard enough not to be broken or cracked. This method of preserving bony fragments is considered to be used in archaeologic preservation and in making teaching materials of various human organs or tissues.
Bone Marrow
;
Burial*
;
Cobalt
;
Humans
;
Methods
;
Periosteum
;
Poaceae
;
Polyesters
;
Teaching Materials
5.Lesion in the Sacro-iliac Joint
Young Min KIM ; Myung Ho KIM ; Moon Sik HAN ; Woong Saeng LIMB
The Journal of the Korean Orthopaedic Association 1977;12(3):409-415
Sacro-iliac joint is, as other joints, the prediIection site of tuberculous or pyogenic arthritis as well as primary or metastatic tumor. The writers reviewed twenty cases of sacro-iliac lesion performed at the Department of Orthopedic Surgery, Seoul National University Hospital, for the period of five years from June 1972 till May 1977. 1. They are tuberculous arthritis eleven, pyogenic arthritis five, ankylosing spondylitis two(one associated with spinal stenosis, the other with hip invoIvement), osteosarcomatosis one, metastatic tumor from adenocnrcinoma of prostate one 2. Infection is the predominant Iesion in sacro-iliac joint, and tuberculous arthritis is twice than pyogenic arthritis. 2. Early diagnosis of sacro-iliac lesion is difficult, but S-I stress test is a valuable finding. 4. Two of eleven cases of tuberculous arthritis, two of five cases of pyogenic arthritis with mild involvement were treated conservatively without sequele, but in more advanced cases, surgical intervention was preformed.
Arthritis
;
Early Diagnosis
;
Exercise Test
;
Hip
;
Joints
;
Orthopedics
;
Prostate
;
Seoul
;
Spinal Stenosis
;
Spondylitis, Ankylosing
6.Comparison of Prediction Accuracy of Four Intraocular Lens Power Calculation Formulas for Presbyopia-Correcting Intraocular Lens
Annals of Optometry and Contact Lens 2025;24(1):19-26
Purpose:
This study aimed to evaluate the prediction accuracy of four intraocular lens (IOL) power calculation formulas; Barrett Universal II, SRK/T, Hoffer-QST, and Kane, using conventional keratometry (K) and total keratometry (TK) in patients who underwent implantation of a four-haptic hydrophobic multifocal IOL (Artis Symbiose Plus®).
Methods:
We analyzed 26 patients (32 eyes) who underwent cataract surgery with implantation of the Artis Symbiose Plus®. Preoperative biometric data, including axial length, keratometry, anterior chamber depth, and lens thickness, were measured using IOL Master 700®. Postoperative refractive outcomes were compared with the target refractive errors derived from four formulas with K and TK. The mean error, mean absolute error, and median absolute error were calculated at 1 and 3 months postoperatively. The results were compared between the formulae and K and TK.
Results:
At 3 months postoperatively, Barrett Universal II and Kane showed significantly lower refractive errors from the target diopter than SRK/T and Hoffer-QST, with Barrett Universal II showing the most hyperopic shift and SRK/T the most myopic than the target refractive error. No significant difference in refractive prediction was found between K and TK across all the formulas. The proportion of eyes with refractive errors within ± 0.50 diopter (D) and ± 1.00 D was highest for Barrett Universal II and Kane, with no statistical significance.
Conclusions
Barrett Universal II and Kane provided superior refractive accuracy compared to SRK/T and Hoffer-QST for Artis Symbiose Plus®. There was no significant difference between K and TK in predicting refractive outcomes.
7.Effects of Inhalational Anesthetics on Contractile Responses and Nitric Oxide Synthase Activity in Endotoxemic Rats.
Jin Woong PARK ; Dong Geon LIM ; Sung Sik PARK ; Byung Young CHOI ; In Kyeom KIM
Korean Journal of Anesthesiology 1997;33(2):204-214
BACKGROUND: Recent studies revealed that inhalational anesthetics (IA) attenuate NO production. But the hemodynamic changes produced by IA in septic syndrome patient are still sufficient to threaten patient, surgeon and anesthesiologist. So we examined which IA is proper to maintain vascular contractile force and evaluated the effects of NOS inhibitors on contractile force of septic rat aorta under IA. METHODS: Aortic ring preparation was obtained from LPS-treated (1.5 mg/kg, i.p. for 18h) rats. The development of sepsis was confirmed by iNOS activity and iNOS expression using RT-PCR. Contractile responses of aorta to phenylephrine admministation in the presence or absence of halothane, enflurane and isoflurane were evaluated. We also evaluated the effects of NOS inhibitors, one is NG-nitro-L-arginine methyl ester (L-NAME) and the other is aminoguanidine. Statistical significances (p<0.05) were analyzed according to data characteristics by unpaired t-test and paired t-test. RESULTS: The contractile responses to phenylephrine admministration were attenuated in LPS-treated rings. Isoflurane, even at the dose of 2 MAC, didn't affect the contractile response while both halothane and enflurane decreased the contractile response even at the dose of 1 MAC. The potentiation of contractile responses by NOS inhibitors were not affected during administeration of IA. CONCLUSIONS: From these results, it is suggested that isoflurane is the safest inhalational anesthetic and NOS inhibitors, especially L-NAME, may be very useful in the therapy of septic shock patients during general anesthesia.
Anesthesia, General
;
Anesthetics*
;
Animals
;
Aorta
;
Enflurane
;
Halothane
;
Hemodynamics
;
Humans
;
Isoflurane
;
NG-Nitroarginine Methyl Ester
;
Nitric Oxide Synthase*
;
Nitric Oxide*
;
Phenylephrine
;
Rats*
;
Sepsis
;
Shock, Septic
8.MIC and MBC of oral antimicrobial agents against staphylococcus aureus.
Min Hang KIM ; Jin Won PARK ; Yun Joo CHEUNG ; Kung Sik RYOO ; Myung Woong CHANG
Journal of the Korean Pediatric Society 1992;35(5):659-666
No abstract available.
Anti-Infective Agents*
;
Staphylococcus aureus*
;
Staphylococcus*
9.Modified reduction genitoplasty
Chang Soo KIM ; In Woong UM ; Heuy Yong ANN ; Sang Chul CHUNG ; Hong Sik CHOI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):199-202
No abstract available.
10.Buccal fat pad transfer as a pedicled flap for facial augmentation
Sang Chul CHUNG ; Heui Yong ANN ; Hong Sik CHOI ; In Woong UM ; Chang Soo KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):153-159
No abstract available.
Adipose Tissue
;
Surgical Flaps