No abstract available.
Humans ; Infant, Newborn ; Meningitis, Bacterial*

The effects of multiple exposures to pesticides on plasma cholinesterase(ChE) activities and urinary p-nitrophenol excretion were evaluated in rats. Rats were received single dose i.p. with LD50/100(mg/kg) of organophosphorous(OP), organophosphorous-organochroline(OP-OC), organophosphorous-carbamate(OP-CAB), organophosphorous-organoarsenate(OP-OA) pesticides for 4 consecutive days. In repeated administration of pesticides, plasma ChE activities were decreased, but urinary p-nitrophenol were increased after the first injection and then decreased gradually. The recovery rates of ChE activities and p-nitrophenol excretion at 48 hours after the fourth infection were delayed in comparison with the baseline value of 24 hours before the first injection. Statistical significances were found between OP and other groups except OP-OA group after the second injection in plasma ChE activities, but in urinary p-nitrophenol excretion there was statistical significance only between OP and OP-CAB.
Animals ; Cholinesterases* ; Pesticides* ; Plasma* ; Rats*

No abstract available.
Humans ; Infant, Newborn* ; Respiration, Artificial ; Survival Rate ; Ventilators, Mechanical*

No abstract available.
Mandibular Reconstruction* ; Ribs* ; Transplants*

No abstract available.
Erythroblastosis, Fetal* ; Infant, Newborn

Several observation suggest that the antimelanocyte autoantibodies could play a role in melanocyte destruction. Some experiments indicate that melanocyte antibodies from patients with vitiligo can kill melanocyte in vitro. In these experiments, we demonstrated that vitiligo patient's sera containing antimelanocyte antibodies can lyse cultured human melanocytes by complement activation. Melanocyte cytotoxicity was measured using the ethidium bromide/ acridine orange viability assay. Significant melanocyte cytotoxicity was seen in sera from patients with both active and inactive vitiligo(p<0.01). Melanocyte cytotoxicity measured with complement-mediated cytotoxicity decreased after systemic steroid treatment(p<0.05) ; however melanocyte cytotoxicity showed no significant change with systemic PUVA therapy.
Acridine Orange ; Antibodies ; Autoantibodies* ; Complement Activation ; Ethidium ; Humans ; Melanocytes ; PUVA Therapy ; Vitiligo*

Coronary arterivenous fistula(CAVF) is an uncommon congenital coronary anomaly-Bilateral CAVFs that originate from both coronary arteries are very rare. Coronary arteriography performed in recent years has clarified the incidence and various features of this lesion. Baim et al.1) reported that only 5% of the coronary artery fistulas arose from bilateral coronary arteries. In this report, we present a case of bilateral coronary artery pulmonary artery fistulas associated with atypical chest pain.
Angiography ; Arteries* ; Chest Pain ; Coronary Vessels ; Fistula* ; Incidence ; Pulmonary Artery

Successful percutaneous transluminal angioplasty (PTA) of an internal mammary artery graft was performed in a 40 year old male patient who had recurrent angina soon after bypass surgery. Coronary angiography showed total occlusion of proximal portion of the left anterior descending artery and normal right coronary artery. Angiography of the left internal mammary artery graft revealed a tight stenosis (90% diameter narrowing) in the mammary artery at its insection into the left anterior descending artery.Angiography after the angioplasty demonstrated a widely patent graft (residual stenosis 10%) and translesional pressure gradient was 10 mmHg.
Adult ; Angiography ; Angioplasty* ; Arteries ; Constriction, Pathologic* ; Coronary Angiography ; Coronary Vessels ; Humans ; Insects ; Male ; Mammary Arteries* ; Transplants*

No abstract available.
Birth Certificates* ; Parturition*

Conventional dual chamber pacing (DDD) preserves atrioventricular synchrony but depend on appropriate sinus node function to achieve physiological heart rate with exercise by atrial tracking. Other indirect indicators of metabolic demand have been used to modulate pacing rate increases with exercise including sensing of pH, respiratory rate, ventricular repolarization and oxygen saturation. The activity sensing approach is unique in that noise generated by activity modulates the response and empirical programming of the unit allows for attaining the desired rate for a given level of activity. Physiologic rate increases can be obtained in patients with sinus node dysfunction or even atrial fibrillation. The lead can either be positoned in the atria for patients without atrial fibrillation or AV conduction disturbance or in the ventricle. We present two cases of rate responsive pacing using the Activitrax.
Atrial Fibrillation ; Heart Rate ; Humans ; Hydrogen-Ion Concentration ; Noise ; Oxygen ; Respiratory Rate ; Sick Sinus Syndrome ; Sinoatrial Node