1.The effect of local electric stimulation on the survival of the random pattern skin flaps in rats.
Byung Pyo YOO ; Young Woo KIM ; Woo Hoe HUR ; Byung Lim PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(1):88-94
No abstract available.
Animals
;
Electric Stimulation*
;
Rats*
;
Skin*
2.Effects of intermittent electrical stimulation on the soleus and medial gastrocnemius muscle atrophy in sciatic nerve injured rats.
Young Woo KIM ; Byung Pyo YOO ; Dae Young KIM ; Woo Hoe HUR ; Byung Rim PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1992;19(3):365-373
No abstract available.
Animals
;
Atrophy*
;
Electric Stimulation*
;
Muscle, Skeletal*
;
Rats*
;
Sciatic Nerve*
3.A study of the cytotoxicity of 5-fluorouracil in the cultured rat fibroblasts.
Byung Pyo YOO ; Young Woo KIM ; Woo Hoe HUR ; Yeun Tai CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):407-415
No abstract available.
Animals
;
Fibroblasts*
;
Fluorouracil*
;
Rats*
4.Trismus casued by inverse activity of masticatory muscles.
Byung Ho CHOI ; Jae Ha YOO ; Hyung Jun KIM ; Jeong Mee PARK ; Ueon Woo RAH
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1993;19(3):385-388
No abstract available.
Masticatory Muscles*
;
Trismus*
5.Long term results and clinical evaluation of lung cancer.
Jae Hyun CHANG ; Jae Ho CHO ; Jin Woo CHANG ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(6):463-469
No abstract available.
Lung Neoplasms*
;
Lung*
6.Clinical evaluation of 32 cases aortocoronary bypass with saphenous vein.
Jae Hyun CHANG ; Jin Woo CHANG ; Jae Ho CHO ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(6):452-456
No abstract available.
Coronary Artery Bypass*
;
Saphenous Vein*
7.Surgical treatment of pulmonary aspergillosis.
Jae Ho JO ; Jin Woo CHANG ; jae Hyun CHANG ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(5):380-383
No abstract available.
Pulmonary Aspergillosis*
8.Validity of PNS plain radiograph with chronic sinusitis.
Esther LYUH ; Youn Ho CHOI ; Byung Goog YANG ; Tal Woo YOO ; Bong Yul HUH
Journal of the Korean Academy of Family Medicine 1993;14(10):688-695
No abstract available.
Sinusitis*
9.Clinical Effects of E. cole Derived Authentic REcombinant Human Growth Hormone(DA-3002) in Children with Growth Hormone Deficiency.
Se Won YANG ; Byung Chul LEE ; Chul Woo KO ; Duk Hee KIM ; Han Wook YOO ; Woo Young CHUNG
Journal of Korean Society of Endocrinology 1998;13(4):526-535
BACKGROUND: Recently authentic human growth hormone(hGH) has produced in the E coli K-12, W3110 by recombinant DNA tecbnology in Korea In this paper, the clinical efficacy and immunogenicity of this GH was shdied in 38 children with growth hormone deficiency during therapy of 1 year. METHODS: The subjects of this study were aged 4.9-13.9 years, diagnosed by failure of plasma GH to respond to insulin-induced hypoglycemia, arginine and/or L-dopa loading and height below -2 standard deviation of mean for their chronological age. Each patient received GH 0.5-0.7IU/kg/week subcutaneously in 6-7 divided doses. During treatment, vital signs, height, body weight and bone age were checked every 3 months. Complete blood count, urinalysis, blood chemistry and thyroid hormone were checked before and every 6 months. The measurement of serum IGF-1 level and antibody against hGH were performed before and every 6 months during therapy of I year. RESULT: The height velocities significantly increased from 3.3 +/- 1.5cm/year to 10.1 +/- 2.5 and 9.0 +/- 1.8cm/year at 6 and 12 months of therapy, respectively. The height standard deviation score for chronological age were significantly improved from -2.141.50 to -1.74 +/- 1.43 and -1.54 +/- 1.38 at 6 and 12 months of therapy with increasing ratio of bone age to chronological age from 0.72 +/- 0.15 at pretreatment to 0.76 +/- 0.15 at 6 month, 0.79 +/- 0.16 at 12 month of therapy. The plasma IGF-1 level significantly increased during treatment. One of 36 patients(2.8%) showed positive antibody against hGH after 1 year of treatment. During therapy of 1 year, unwanted and remarkable clinical side effect were not observed in all subjects. CONCLUSION: These results indicate that this E. coli derived authentic recombinant growth hormone is very effective in stimulating linear growth in children with growth hormone deficiency.
Arginine
;
Blood Cell Count
;
Body Height
;
Chemistry
;
Child*
;
DNA, Recombinant
;
Escherichia coli
;
Growth Hormone*
;
Human Growth Hormone
;
Humans*
;
Hypoglycemia
;
Insulin-Like Growth Factor I
;
Korea
;
Levodopa
;
Plasma
;
Thyroid Gland
;
Urinalysis
;
Vital Signs
10.Transneuronal Degeneration Due to Peripheral Nerve Injury in the Rats.
Hyun Ho KWAK ; Byung Ki YOO ; Myoung Hee KIM ; Hyung Woo PARK
Korean Journal of Physical Anthropology 2001;14(3):259-271
When an axon is severed, degenerative changes occur in the injured neuron as well as in those with which it has synaptic connections through transneuronal degeneration. Transneuronal degeneration includes all atrophic or degenerative changes that occur in nerve cells following the disappearance of their efferent (retrograde transneuronal degeneration) or afferent (anterograde transneuronal degeneration) connections. Previous studies have shown that transneuronal degeneration may occur in the neurons of various central nervous system following injury to their peripheral nerve. However, the effect of transneuronal degeneration on the neurons which are related with damaged neurons functionally and structurally is not elucidated yet. Denervation due to axonal degeneration or dysfunction of nerve cell bodies leads to physiological and biochemical changes in the skeletal muscles, and the extent of neuronal degeneration can be assessed through the muscle atrophy and the changes in muscle fiber type density. In order to identify the effect of transneuronal degeneration on the adjacent peripheral nerves as well as muscles, the left femoral nerve of Sprague -Dawley rats was transected, and changes in their spinal cords and hindlimb muscles were analysed morphologically and histochemically. The results obtained are as follows : 1. the motor neurons of ipsilateral anterior horn of femoral nerve transected rats showed reduction in size and degenerative features such as shriven shape and nucleus moved to periphery of the cell body. 2. All three muscle fiber types of rectus femoris and adductor longus were reduced in muscle fiber size, but no such changes were observed in semitendinosus. 3. In rectus femoris and adductor longus, type IIa muscle fiber was increased in number and the number of type IIb fiber was reduced, whereas no change was observed in all three muscle fiber types of semitendinosus. These findings indicate that damaged neurons following peripheral nerve injury can affect other adjacent neurons through transneuronal degeneration and cause the denervative changes in the muscles innervated by those adjacent neurons concomitantly, and such effects are only observed in the same spinal cord level.
Animals
;
Axons
;
Central Nervous System
;
Denervation
;
Femoral Nerve
;
Hindlimb
;
Horns
;
Motor Neurons
;
Muscle, Skeletal
;
Muscles
;
Muscular Atrophy
;
Neurons
;
Peripheral Nerve Injuries*
;
Peripheral Nerves*
;
Quadriceps Muscle
;
Rats*
;
Spinal Cord