No abstract available.
Benzodiazepines* ; gamma-Aminobutyric Acid* ; Receptors, GABA-A*

No abstract available.
Decompression* ; Spinal Stenosis*

We report a typical case of Hunters syndrr me in a 9 year old boy, who presented with firm skin colored nodules that coalesce to form a reticular pattern on a symmetrical rea between the angles of the scapulas, which is regarded as the pathognornonic cutaneous rnarker, for Hunters syndrome. He also showed growth retardation, clear corneas, hepatomegaly, attertich deficit and mild mental deterioration. The skin biopsy specimen taken frorn a typical nodule shows loosely arranged collagen fibers with massive mucinous material which stains positively with aliar blue at both pH 2.5 and 0.5, metachromatic granules within fibroblast stained with toluidine blue.
Biopsy ; Child ; Collagen ; Coloring Agents ; Cornea ; Fibroblasts ; Hepatomegaly ; Humans ; Hydrogen-Ion Concentration ; Male ; Mucins ; Mucopolysaccharidosis II* ; Scapula ; Skin* ; Tolonium Chloride

No abstract available.
Pneumoconiosis* ; Thorax*

BACKGROUND: Paraquat, a widely used herbicide, is extremely toxic, causing multiple organ failure in humans. Paraquat especially leads to irreversible progressive pulmonary fibrosis, which is related to oxygen free radicals. However, its biochemical mechanism is not clear. Natural mechanisms that prevent damage from oxygen free radicals include changes in glutathione level, G6PDH, superoxide dismutase(SOD), catalase, and glutathione peroxidase. The authors think catalase is closely related to paraquat toxicity in the lungs METHOD: The effects of 3-amino-1,2,4-triazole(aminotriazole), a catalase inhibitor, on mice administered with paraquat were investigated. We studied the effects of aminotriazole on the survival of mice administered with paraquat, by comparing life spans between the group to which paraquat had been administered and the group to which a combination of paraquat and aminotriazole had been administered. We measured glutathion level, glucose 6-phosphate dehydrogenase(G6PDH), superoxide dismutase(SOD), catalase, and glutathione peroxidase(GPx) in the lung tissue of 4 groups of mice: the control grouts, group A(aminouiazole injected), group B(paraquat administered), group C(Paraquat and aminotriazole administered). RESULTS: The mortality of mice administered with paraquat which were treated with aminotriazole was significantly increased compared with those of mice not treated with aminotriazole. Glutathione level in group B was decreased by 20%, a significant decrease compared with the control group. However, this level was not changed by the administration of aminotriazole(group C). The activity of G6PDH in all groups was not significantly changed compared with the control group. The activities of SOD, catalase, and glutathione peroxidase(GPx) in the lung tissue were significantly decreased by paraquat administration(group B); catalase showed the largest decrease. Catalase and GPX were significantly decreased by aminotriazole treatment in mice administered with paraquat but change in SOD activity was not significant.(group C). CONCLUSION: Decrease in catalase activity by paraquat suggests that paraquat toxicity in the lungs is closely related to catalase activity. Paraquat toxicity in mice is enhanced by aminotriazole administration, and its result is related to the decrease of catalase activity rather than glutathione level in the lungs. Production of hydroxyl radicals, the most reactive oxygen metabolite, is accelerated due to increased hydrogen peroxide by catalase inhibition and the lung damage probably results from nonspecific tissue injury of hydroxyl radicals.
Amitrole* ; Animals ; Catalase ; Free Radicals ; Glucose ; Glutathione ; Glutathione Peroxidase ; Humans ; Hydrogen Peroxide ; Lung* ; Mice* ; Mortality ; Multiple Organ Failure ; Oxygen ; Paraquat* ; Pulmonary Fibrosis ; Superoxides

No abstract available.

Polyethylene glycol (PEG)-3350 is the most frequently used lavage solution for bowel cleansing prior to colonoscopy or elective surgery because its large molecular weight means that it is poorly absorbed. However, if it leaks into the peritoneal cavity, complications may arise. Few published studies have assessed the absorption, distribution, metabolism and excretion of PEG. Moreover, no published clinical data regarding complications due to the intra-peritoneal leakage of PEG-3350 could be found. We report on an elderly patient who developed the poisoning caused by leaking of PEG-3350 during bowel preparation. It resulted in severe metabolic acidosis, hypernatremia, hyperosmolality and a high anion gap, but it was effectively treated with early continuous renal replacement therapy after surgery.
Absorption ; Acid-Base Equilibrium ; Acidosis ; Aged* ; Colonoscopy ; Humans ; Hypernatremia ; Metabolism ; Molecular Weight ; Peritoneal Cavity ; Poisoning* ; Polyethylene Glycols* ; Renal Replacement Therapy ; Therapeutic Irrigation

BACKGROUND: Trichloroacetic acid chemexfoliation has gained popularity and is widely used cosmetically. The depth of the wound caused by the various dilutions of TCA is paramount to the therapeutic efficacy. Therfore rational use of TCA chemexfoliation requires a clear understanding of the expected depth of destruction caused by a given dilution. OBJECTIVE: The purpose of this stuely is to quantitate the wound deptlw produced by varying concentrations of TCA. We have stirdied takie effects of consecutive applications, occlusion and tretinoin pretreatment on wound depth in TCA clinimical peeling. METHODS: Various concentrations of TCA and distilled water were aplied to two pairs of test sites of a guinea pigs back in a uniform fashion with cotton-tip applicators and then we have measured the mean depth of epidermal necrtsis mieroscopically by using Visual Imagc Data Analysis System. RESULTS: 1. Depths of wounds createdly threre consecutive applications of 20, 35% and 50% TCA were deeper than those of wounds by a single application of TCA. 2. Depths of wounds created by application of TCA with the occlusive method were deeper than those of the open method. Therefore the effect of occlusion is to enhance the penetration of TCA. 3. Depths of wounds pretreatwi with 0.05 % tretinoin daily for 7 days are deeper than those of the control in 50% TCA chemical peeling. Therefore the effect of 0.05% retinoin pretreatment is to enhance the penetration of TCA. CONCLUSION: This study showed that consecutive applications, oeclusion and tretinoin pretreatment in TCA chemexfoliation enhance the peietration of TCA.
Animals ; Chemexfoliation* ; Guinea Pigs ; Statistics as Topic ; Tretinoin ; Trichloroacetic Acid* ; Water ; Wounds and Injuries

No abstract available.
Lung Neoplasms* ; Lung* ; Pneumothorax, Artificial*

No abstract available.
Lymphangioleiomyomatosis*