흰쥐 젖샘신경으로 투사하는 중추신경내 Oxytocin 신경로에 관한 연구

백상호,강기동,김은아,조경제,최완성,이봉희 대한해부학회 1997 Anatomy & Cell Biology Vol.30 No.6

실물과 사진제시에 의한 화색과 식물형태의 비교 : focusing on the students of mental ratardation 정신지체학생을 대상으로

안기완,백지성,김은일,조희두,서성철,오찬교 韓國植物ㆍ人間ㆍ環境學會 1999 인간식물환경학회지 Vol.2 No.4

This study was carried out to verify the differences in preference of flower colors by displaying flowered plants and their photos to mentally retarded students. As a result, normal students showed consistent preference against both the objects. But mentally retarded students had a different preference for flowered plants and their photos.

유리 전박골피판을 이용한 음경 재건술

정성광,변진석,백봉수,김법완 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.2

Reconstruction of the penis is indicated in a traumatic or surgical amputation, congenital penile absence, micropenis, male pseudohermaproditism, or transsexualism. Initially, penile reconstruction has been performed using a local flap, but often failed because of the multiple procedures, fistula or stricture of the urethra, and no sensation of the phallus. Ideally, penile reconstruction should be a one-stage procedure, creating a phallus with both tactile and aerogenous sensibility, water-tight neourethra allowing for voiding while standing, enough bulk with stiffness, and aesthetically acceptable appearance. Since August 1989 we have constructed a penis in 4 patients. We selected the radial forearm flap as a donor site because it offers a reliable artery, veins, nerves, and stiffner. It also offers thin, malleable skin with adequate width and length. We have followed these patients from 5 months to 10 months. All operations were successful except for one fistula formation.

Pseudorabies 바이러스를 이용한 흰쥐 자궁의 신경지배에 관한 연구

이봉희,최완성,조경제,권해영,배지홍,송준경,이흥식,백상호 대한해부학회 1993 Anatomy & Cell Biology Vol.26 No.3

Worker-Centered Design for Working Area in the Electronic Industry

Sung Wan Baik,Byung Yong Jeong,Dong Seok Shin 대한인간공학회 2014 大韓人間工學會誌 Vol.33 No.3

Objective: This research provides a guideline for working area design in the electronic industry, considering gender differences of physical characteristics. Background: Co-work in the electronic industry requires workers of various physical properties to work cohesively in the conveyor line for mass production. This stresses the need for a worker-centered design of the workplace convenient for all the workers. Method: In this research, the 6th Size Korea (National Anthropometric Survey in Korea) report is referred to obtain the design measurements according to age and gender varieties. This information is used to provide the working area guideline concerning conveyor line workers of both genders aged 20 to 40. Results: Physical properties of workers and workplace design principles were obtained for application in the assembly, inspection, and material handling process in the electronic industry. Conclusion: Applying ergonomic design principles can provide safe and comfortable workplace for both genders. Application: This research can be fundamentally used in designing worker-centered workplaces.

소아의 자가조절진통에서 Morphine과 Fentanyl의 비교

백승완,김해규,김경훈,백승훈,김운성 부산대학교 병원 암연구소 2007 부산대병원학술지 Vol.- No.21

Purpose: Patient controlled analgesia (PCA) of opioids is a effective analgesic technique for children. But postoperative complications prevent children fully benefiting from their peA. We have compared morphine based PCA with fentauyl based PCA during pediatric orthopedic surgery. Subject and Methods: Sixty children (5-14 years old) after orthopedic surgeries allocated into two group. Morphine group received morphine based PCA; loading dose 0.1 ㎎/㎏, continuous infusion 0.05 ㎎/㎏/hr, bolous dose 0.025 ㎎/㎏. Fentanyl group received fentanyl based PCA; loading dose 1 ㎍/㎏, continuous infusion 0.5 ㎎/㎏/hr, bolus dose 0.25 ㎍/㎏. Pain was assessed by visual analogue scale (VAS). Scores for pain, respiratory depression, sedation, prutitus, nausea, vomiting and bolus counts and PCA dose were recorded at recovery room, 12 hour, 24 hours and 48hours after surgery. Results: There were no differences in VAS score between two groups on each times. The incidences of respiratory depression, sedation, pruritus, nausea and vomiting were no differences, too. But cumulative bolus demands was significantly higher in fentanyl group on 24 hours and 48 hours after surgery (P < 0.05). Conclusions: Morphine based PCA was similar effect with fentanyl based PCA, in controlling postoperative pain. Furthermore, morphine based PCA offer cost-effectiveness over fentanyl based PCA and do not increase the incidence of side effects.

냉동성 뇌손상 Model 에서 Nitric Oxide 가 백서의 뇌부종 형성에 미치는 영향

백승완,신상욱,김해규,정규섭,김인세,최명길 대한마취과학회 1998 Korean Journal of Anesthesiology Vol.34 No.6

Background : Nitric oxide(NO) is a simple molecule with a complex involvement in a wide variety of biologic functions. However, whether NO protects or aggravates brain injury is still controversial. This study was conducted to determine the effect of nitric oxide on the formation of brain edema resulting from a focal cryogenic injury in rats. Methods : Thirty nine Sprague-Dawley rats(200∼250 gm) were allowed food and water ad libitum. Anesthesia was induced in a specially designed plastic box with 5% halothane in oxygen. In experiment I(24 rats), animals were divided randomly into eight group(3 rats in each group) according to the decapitation time in control, 15, 30, 45, 60, 90, 120, and 180 min. Cryogenic injury was made by pouring liquid nitrogen to exposed temporo-parietal area through metal funnel for 60 seconds. After cryogenic injury, brain was quickly removed and cerebral hemispheres were seperated. Separated cerebral hemispheres were dried in a drying oven for 7 days at 60oC. Cerebral water content as assessed by dry-weight method. In experiment II(15 rats), one subgroup(n=8) was control group, normal saline 0.5 ml was injected intraperitoneally 30 minutes before injury. the other(n=7) was experimental group, and a competitive nitiric oxide synthase inhibitor, N-nitro-L-arginine methyl ester(L-NAME), was given intraperitoneally 30 minutes before injury in a dose of 20 mg/kg. Body temperature was monitored during whole experiment. Ninety minutes after injury, brain was quickly removed and cerebral hemispheres were seperated. The cerebral water content of separated cerebral hemisphere was assessed by dry-weight method. Results : In time courses of cryogenic brain edema of experiment I, the amount of brain edema was increased till 90 minutes after cryogenic brain injury and then decreased. In L-NAME group of ex-periment II, the amount of cerebral edema was not changed significantly(p>0.05). But, there was a tendency of decrease in brain edema formation in L-NAME group than control group. Conclusions : It as not proved that nitric oxide had a major role in the edema formation after cryogenic brain injury, but it still seems that nitric oxide has at least partly involved in the pathogenesis of cerebral edema resulting from traumatic brain injury. (Korean J Anesthesiol 1998; 34: 1097∼1103)

Bispectral Index 와 Anemon-1 Monitor 를 이용한 마취심도 평가

백승완,신상욱,김인세,손세용 대한마취과학회 2001 Korean Journal of Anesthesiology Vol.41 No.5

면역조직화학과 In Situ Hybridization을 동시에 적용한 흰쥐 선하수체 Prolactin과 Prolactin mRNA의 감별

백상호,최완성 대한내분비학회 1987 Endocrinology and metabolism Vol.2 No.2

Immunohistochemistry and in situ hybridization were simultaneously employed at the same tissue section for identification of prolactin(PRL) and PRL mRNA. Pituitary glands from normal female rats were dissected out after perfusion of 3% neutral buffered paraformaldehyde through the ascending aorta. After rinsing in 30% surcrose containing 0.02% diethyl pyrocarbonate, frozen sections were cut in a cryostat at 10 um.For immunohistochemical staining anti-rPRL and biotinylated anti-rabbit IgG were used, and in situ hybridization was performed with ^35S-labeled PRL cDNA followed by autoradiographic process and counter-stain with cresyl violet. By this combination method, PRL appeared as brown-colored granules in the cytoplasm of lactotrophs and PRL mRNA were co-localized as dark silver grains at the same lactotrophs. Silver grains were also observed at the cells which revealed negative response to anti-rPRL.

Treatment of the wide open wound in the Ehlers-Danlos syndrome

Baik, Bong Soo,Lee, Wu Seop,Park, Ki Sung,Yang, Wan Suk,Ji, So Young Korean Cleft Palate-Craniofacial Association 2019 Archives of Craniofacial Surgery Vol.20 No.2

Ehlers-Danlos syndrome (EDS) is an inherited disorder of collagen biosynthesis and structure, characterized by skin hyperextensibility, joint hypermobility, aberrant scars, and tissue friability. Besides the skin, skeleton (joint) and vessels, other organs such as the eyes and the intestine can be affected in this syndrome. Accordingly, interdisciplinary cooperation is necessary for a successful treatment. Three basic surgical problems are arising due to an EDS: decreased the strength of the tissue causes making the wound dehiscence, increased bleeding tendency due to the blood vessel fragility, and delayed wound healing period. Surgery patients with an EDS require an experienced surgeon in treating EDS patients; the treatment process requires careful tissue handling and a long postoperative care. A surgeon should also recognize whether the patient shows a resistance to local anesthetics and a high risk of hematoma formation. This report describes a patient with a wide open wound on the foot dorsum and delayed wound healing after the primary approximation of the wound margins.