Background: Insulin is known to act as second effector that provides potassium transfer from extracellular fluid to intracellular fluid, thus causing hypokalemia and arrythmia. We evaluated the effect of magnesium sulfate treatment on hemodynamics and serum potassium concentration, induced by continuous infusion of regular insulin solution in rabbits. Method: Twenty-four rabbits were divided into four groups for the experiment. Group I was given intravenouse injection of 5 ml of normal saline and continuous dripping of 7.5 U of RI. Group II was pretreated with 30 mg/kg of magnesium sulfate, followed by continuous dripping of 7.5 U of RI. Group III was given 5 ml of normal saline and 15 U of RI. And Group IV was administered 15 U of RI after 30 mg/kg of magnesium sulfate pretreatment. Venouse blood sampling was done before pretreatment, and after 5, 30, 60 and 120 minutes respectively. Heart rate and arterial blood pressure were taken at the same intervals. Result: 1) There was no significant change in serum potassium concentration in groups injected with 7.5 units of RI respectively (groups I and II), regardless of magnesium pretreatment. But in groups injected with 15 units of RI, the group that was not pretreated with magnesium (Groups III) showed a decrease in serum potassium concentration from 3.39+/-0.57 Eq/L to 2.29+/-0.71 mEq/L, while the concentration in the pretreated group (Group IV) decreased more significantly from 3.35+/-0.50 mEq/L to 1.81+/-0.41 mEq/L. 2) Pulse rate did not change significantly in groups that received continuous infusion of 7.5 units of RI (groups I and II) regardless of magnesium pretreatment, but increased significantly in groups injected with 15 units of RI (groups III and IV), pretreated or not. The pretreated group (group IV) had a more significant rise in pulse rate compared with the group that was not pretreated (group III). 3) In all of the groups, those pretreated with magnesium (groups II and IV) and those not pretreated (groups I and III), there was no significant change in systolic and diastolic blood pressures. Nor was arrhythmia detected. Conclusion: The above results indicate that while magnesium sulfate pretreatment at 30 mg/kg with insulin infusion affects serum potassium concentration, has an antiarrhythmic effect, and may induce tachycardia, it does not have any significant effect on blood pressure.
Arrhythmias, Cardiac ; Arterial Pressure ; Blood Pressure ; Extracellular Fluid ; Heart Rate ; Hemodynamics* ; Hypokalemia ; Insulin ; Intracellular Fluid ; Magnesium Sulfate ; Magnesium* ; Potassium* ; Rabbits* ; Tachycardia

BACKGROUND: Several keratolytic agents have been used in many dirmatologic conditions such as callus, keratosis palmaris of plantaris, however the evaluation method of the effects of keratolytiic agents has not been good enough in clinical use. OBJECT: We have conducted an investigation to measure the effect of several keratolytic agents using an in vitro model. METHOD: We measured the fegraded protein of keratin by the bui iet method after adding enzymes such as trypsin, pepsin and papain, and irritants, salicylic acid and sodii m lauryl sulfate to the collected callus. RESULT: The order of the keratolytic effect of the enzymes was trypsir >pepsin>papain. It was difficult to detect the keratolytic effect of salicylic acid becaues of color hiidrance and there was an increasing tendency of keratolyti effect of sodium lauryl sulfate, however it was prominent mainly at a high concentration. CONCLUSION: These results suggested that the potency of similar types of keratolytic enzymes such as pepsin, trypsin and papain can be possible. However it was not such a sitable model to check the potency of the keratolytic effect of salicylic acid and the eoncentration tevel may be an important factor for certain kinds of chemicals such as sodium lauryl sulfate.
Bony Callus ; Irritants* ; Keratolytic Agents ; Keratosis ; Papain ; Pepsin A ; Salicylic Acid ; Sodium Dodecyl Sulfate ; Trypsin

Vasoconstrictive effect of several topicsl corticosteroids was measured using laser Doppler flowmeter. Hydrophilic ointment base, 1% hydrocortisone cream, 0.1% clocortolone pivalate cream, and 0.25% desoxymethasone cream were applied on both forearms of 20 volunteers. To augment the vasoconstrictive effect of the corticosteroids, We had cut off the blood flow to forearms for 4 minutes by tourniquet. The reactive hyperemia was measured by laser Doppler flowmeter and the ares under the curve were calculated by digitizer aided by a computer. The mean areas of esch drugs were in the following order : hydrophilic ointment base, 0.1% clocortolone pivalate cream, 1% hydrocortisone crearn and 0.25% desoxymethasone cream. However, the standard deviations were too large for the difference to be statistically significant. We concluded that laser Doppler flowmeter is not suitable for the measurement of vasoconstrictive effect of corticosteroid.
Adrenal Cortex Hormones ; Desoximetasone ; Flowmeters* ; Forearm ; Humans* ; Hydrocortisone ; Hyperemia ; Tourniquets ; Vasoconstriction ; Volunteers

Reflex sympathetic dystrophy(RSD) defines as a chronic pain syndrome with sympathetic manifestations that afflicts individuals who haute suffered a trauma to the hand. Persistent pain and dysfunctions of the hand are frequently overlooked by the surgeons. The exact pathophysiology of RSD is not known but severity of injury and prolonged immobilization of the joints are considered as resonable causes on the retrospective studies. The diagnosis of reflex sympathetic dystrophy is based on clinical manifestations, simple X-ray and three-phase bone scan. Confirmative diagnosis absolutely depends on the presence of a diffusely abnormal pattern of uptake in phase III in a patient haying pain with underlying cause and strong clinical signs of sympathetic overactivities. As with most disease processes, early diagnosis and treatment is a goal of management of RSD. Surgical restoration of anatomical structures such as tendon, nerve and joint goes ahead of any kind of procedures and it made the VAS pain score decrease from 7.8 to 3.4 in 16 patients. Also, decrease of pain could be achievable with sympathetic or stellate ganglion block with steroid medication. Active physical therapy after surgery is also verb helpful to functional recovery of the hands. Once the appropriate diagnosis is made, combined therapy composed of surgical restoration of anatomical structure, physiotherapy and steroid medication with sympathetic block will be free from pain and produce early functional recovery.
Chronic Pain ; Diagnosis ; Early Diagnosis ; Hand Injuries* ; Hand* ; Humans ; Immobilization ; Joints ; Reflex Sympathetic Dystrophy* ; Reflex* ; Retrospective Studies ; Stellate Ganglion ; Tendons

We describe a case of cutaneous chylous reflux, which is thought to be a kind of primary lymphedema, in a 19-year-old male who had suffered from multiple vesiculobullae and intermittent swelling on scrotum for about 6 years. Histopathologic findings showed multiple dilated lymphatic vascular channels in papillary dermis.
Dermis ; Humans ; Lymphedema ; Male ; Scrotum ; Young Adult

The paratertiary butylphenol formaldehyde resin (PTBP-FR) is commonly used as a shoe adhesives because it sticks rapidly, is durable and pliable, and maintains good bond strength at raised temperature. We report two cases of allergic contact dermatitis due to PTBP-FR-containing shoes. Two women visited our department because of the skin rash on their .
Adhesives ; Dermatitis, Allergic Contact* ; Exanthema ; Female ; Formaldehyde* ; Humans ; Shoes*

No abstract available.
Cell Line* ; Chromosome Aberrations* ; Cytogenetics* ; Humans* ; Neuroblastoma*

Disc herniation is commonly thought to be disease of young and middle aged adult and the backache during adolescence and childhood frequently mislead the doctor to suspect other conditions such as epiphysitis, spondylolysis, and infection of vertebral column, etc. During the period of 1967~1977, 26 cases of juvenile disc herniation were collected at Catholic Medical College and the authors analysed these cases and the results are as follows. 1. The incidence was 3.4% of all disc herniation. 2. There was no sex predilection. 3. The clinical symptoms do not differ from that of the adult cases, but sensory disturbance and motor weakness appear less frequently. 4. Good result was obtained after the surgical removal of the involved disc. 5. The etiology of the disc herniation in childhood and adolescence is thought to be superimpositon of trauma over the preceding degenerative changes in disc.
Adolescent ; Adult ; Back Pain ; Humans ; Incidence ; Middle Aged ; Spine ; Spondylolysis

Primary irritant dermatitis is one of the most common skin disease caused by various hazardous chemicals produced from the environment. For the detection of skin irritant potency, in vivo models such as human and animal patch test have been used, Keratinocyte culture method which has been set up very recently is another alternative in vivo method of detecting skin irritarlcy. LVe have investigated the effects of three skin irritants, phenol, benzoyl peroxide (BP), and sodium lauryl sulfate(SLS) on the keratinocyte culture system. Prostaglandin E(PGE) measurement, cell count and electron microscopic observation were performed after adding three irritants of different concentrations to the cultured keranocyte cells. The main results of this study were as follows : 1. There were statistically significant decreased cell number in concentration of 10 M phenol, 10 4M BP and SLS. The order of cytotoxic potency was SLS>BP >phenol. 2. In case of PGE production, decreased PGE production was observed 6 hours after addition of the irritants, except 10 M phenol and 10M BP groups. Decrea sing tendency sustained until 24 hours, however all were statistically nonsignificant comparing with control group. 3. Electron microscopic finding showed that dilatation of endoplasmic reticulums in 10 M phenol group, condensation and dilatation of mitochondrias in 10 4M BP group, and most of the cells were swollen in 10 4M SLS group. These results suggest that cell count is a useful model for performing cytotoxi city test in keratinocyte culture decreased PGE production represents cytotoxic effect in high concentration of primary irritants and ultrastructural changes may reflect the different pathomechanisms in cytotoxicity.
Animals ; Benzoyl Peroxide ; Cell Count ; Dermatitis, Irritant ; Dilatation ; Dinoprostone ; Endoplasmic Reticulum ; Hazardous Substances ; Humans* ; Irritants* ; Keratinocytes* ; Mitochondria ; Patch Tests ; Phenol ; Prostaglandins E ; Skin ; Skin Diseases ; Sodium

No abstract available.
Ciprofloxacin* ; Methicillin Resistance* ; Methicillin-Resistant Staphylococcus aureus*