This study aimed to investigate the existence of GABA receptor and the mechanisms of action of GABA and diazepam of the trachealis muscle isolated from dog. Horizontal muscle strips of 2mm×15mm were prepared from canine trachea, and isometric myography in isolated muscle chamber bubbled with 95/5%-O₂/CO₂ at 36℃, at the pH of 7.4 was performed. Muscle strips contracted responding to the electrical field stimulation (ESP) by 2~20 Hz, 20 msec, monophasic square wave of 60 VDC. GABA and diazepam suppressed the EFS-induced contractions to the similar extent, significantly. (p<0.05). Bicuculline, a GABA(A) receptor antagonist blocked both GABA- and diazepam-inhibitions; but DAVA, a GABA(B) receptor antagoinst did not affect either of them. These results suggest than in the canine trachealis muscle, there may be only GABA(A) receptor, and GABA and diazepam inhibit the contractility via GABA(A) receptor.
Animals ; Bicuculline ; Diazepam ; Dogs ; gamma-Aminobutyric Acid* ; Hydrogen-Ion Concentration ; Myography ; Receptors, GABA ; Receptors, GABA-A ; Trachea

ANCA-associated vasculitis is one of the immunologic cause of diffuse alveolar hemorrhage (DAH). We experienced a rare case of recurrent DAH in a 67-year-old man with ANCA-associated vasculitis who had been on maintenance hemodialysis. Two years ago, he presented with renal failure and hemoptysis. Hemoptysis caused by DAH was resolved immediately and hemodialysis was applied because of persistent uremic symptom. On maintenance hemodialysis, three recurrences have happened so far. At present, oral prednisolone and oral cyclophosphamide are being maintained during outpatient follow-up. Our report suggests that the nephrologist must be concerned about the possibility of recurrent aleveolar hemorrhage in ANCA associated renal disease patients and consider immunosuppressive treatment, even though the patient has been on maintenance hemodialysis.
Aged ; Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis ; Antibodies, Antineutrophil Cytoplasmic ; Cyclophosphamide ; Follow-Up Studies ; Hemoptysis ; Hemorrhage* ; Humans ; Outpatients ; Prednisolone ; Recurrence ; Renal Dialysis ; Renal Insufficiency ; Vasculitis*

The purpose of this study provides measurements of radiation dose from MDCT of head, chest, abdomen and pelvic examinations. A series of dose quantities that are measured of patient weight to compare the dose received during MDCT examinations. Data collected included: weight together with CT dose descriptors, volume CT dose index (CTDIvol) and dose length product (DLP). The effective dose was also estimated and served as collective dose estimation data. Data from 1,774 adult patients attending for a CT examination of the head (n=520) or chest (n=531) or abdomen (n=724) was obtained from spiral CT units using a same CT protocol. Mean values of CTDIvol was a range of 48.6 mGy for head and 6.9, 10.5 mGy for chest, abdomen examinations, respectively. And mean values of DLP was range of 1,604 mGy.cm for head, 250 mGy.cm for chest, 575 mGy.cm for abdomen examinations, respectively. Mean effective dose values for head, chest, abdominal CT were 3.6, 4.2, and 8.6 mSv, respectively. The degree of CTDIvol and DLP was a positive correlation with weight. And there was a positive correlation for weight versus CTDIvol (r2=0.62), DLP (r2=0.694) in chest. And head was also positive correlation with weight versus CTDIvol (r2=0.691), DLP (r2=0.741). We conclude that CTDIvol and DLP is an important determinant of weight within the CT examinations. The results for this study suggest that CT protocol should be tailored according to patient weight.
Abdomen ; Adult ; Antineoplastic Combined Chemotherapy Protocols ; Cone-Beam Computed Tomography ; Cytarabine ; Gynecological Examination ; Head ; Humans ; Subject Headings ; Thioguanine ; Thorax ; Tomography, Spiral Computed

We investigated the co-stimulatory role of a cell-surface protein, CD99. Co-ligation of CD99 and suboptimal CD3 induced T-cell activation to a level comparable to that obtained with optimal CD3 or CD3+CD28. We also noted concomitant enhancement of the earliest T-cell receptor (TCR) signaling events. In addition, co-ligation of CD99 and CD3 led to translocation of TCR complexes into the lipid raft, without concomitant migration of CD99 to the raft, and consequent enhancement of TCR zeta-mediated signal 1. These data demonstrate the unique properties of CD99 co-stimulation that distinguish this molecule from CD28 and other raft-resident co-stimulatory factors.
Antigens, CD/*immunology ; Antigens, CD3/immunology ; Cell Adhesion Molecules/*immunology ; Down-Regulation ; Humans ; Jurkat Cells ; Lymphocyte Activation/*immunology ; Membrane Microdomains/*immunology ; Membrane Proteins/*immunology ; Phosphorylation ; Phosphotyrosine/*metabolism ; Protein Transport ; Receptors, Antigen, T-Cell/*immunology ; T-Lymphocytes/*immunology

BACKGROUND: Diabetic nephropathy is one of the major causes of end-stage renal disease. Microalbuminuria predicts not only progressive renal disease, but also increased cardiovascular morbidity and mortality. But, the relationship between urinary albumin excretion rate (UAER) and glomerular filtration rate (GFR) remains an unresolved issue. In order to investigate the early renal function abnormalities, UAER and GFR were assessed and their relationship was examined in normotensive patients with type 2 diabetes mellitus (DM). METHODS: Between January 1997 and June 2001, in a cross sectional study of 112 normotensive patients with type 2 DM not showing overt proteinuria and thirty healthy subjects served as control group. According to UAER, type 2 DM patients were divided into normoalbuminuria group and microalbuminuria group. The GFR was measured using 99mTc-DTPA renal scan. Clinical values in type 2 DM patients and control subjects were compared using one-way analysis of variance (ANOVA) with Scheffe's F test. In type 2 DM patients, Univariate Chi-square analysis was used to evaluate the prevalence of diabetic retinopathy and the differences in anti-diabetic treatment. Pearson correlation coefficients were used to demonstrate a strength of an association between UAER and other variables including GFR. RESULTS: Three groups were well matched with regard to gender, age and body mass index. There were no significant differences in disease duration and anti-diabetic treatment in type 2 DM patients. The GFR in microalbuminuric patients was significantly higher than in normoalbuminuric patients (124.0 17.6 vs 102.9+/-15.5 mL/min/1.73 m2, p<0.05). The prevalence of diabetic retinopathy in microalbuminuric patients was significantly higher than in normoalbuminuric patients (53.8% vs 24.7%, p<0.05). Only there was significant positive correlation between log UAER and GFR (r=0.303, p<0.05). CONCLUSION: As in type 1 DM patients, there was a significant relationship between UAER and GFR in normotensive type 2 DM patients without overt proteinuria.
Body Mass Index ; Diabetes Mellitus, Type 2* ; Diabetic Nephropathies ; Diabetic Retinopathy ; Glomerular Filtration Rate* ; Humans ; Kidney Failure, Chronic ; Mortality ; Prevalence ; Proteinuria

BACKGROUND: Chronic kidney disease has deleterious influences on pregnancy, both fetus and mother. To determine the pregnancy outcome and associated risk factors, we analyzed 36 pregnancies in 26 women with various chronic kidney diseases. METHODS: Retrospective analysis of 36 pregnancies was performed in women with chronic kidney disease who underwent antenatal care and delivery at Pusan National University Hospital from January 1993 to December 2002. RESULTS: The mean age of patients was 29.7 +/- 3.6 years. Underlying kidney disease was lupus nephritis in 10 patients (11 pregnancies), IgA nephropathy in 7 patients (8 pregnancies), focal segmental glomerulosclerosis in 4 patients (9 pregnancies), membranoproliferative glomerulonephritis in 4 patients (7 pregnancies), membranous glomerulonephritis in 1 patient (1 pregnancy). Of the 36 pregnancies, fetal loss occurred in 14 pregnancies (38.9%), premature delivery 7 pregnancies (19.4%) and normal delivery 15 pregnancies (41.7%). Deterioration of maternal renal function occurred in 10 pregnancies (27.8%), hypertension 18 pregnancies (50.0%) and aggravation of proteinuria 26 pregnancies (72.2%). Fetal loss and deterioration of maternal renal function were more frequent in patients with preconception serum creatinine value (SCr) >or=1.4 mg/dL than in those with SCr <1.4 mg/dL (85.7% vs. 27.6%, p<0.05; 100% vs. 10.3%, p<0.05, respectively). Neither fetal loss nor deterioration of maternal renal function was associated with hypertension and aggravation of proteinuria. In multivariate analysis, preconception SCr was associated with fetal loss (p=0.014, OR 32.7, 95% CI 2.0-526.0) and BP >or=140/90 mmHg during pregnancy was associated with low birth weight (p=0.027, OR 0.034, 95% CI 0.002-0.682). Deterioration of maternal renal function during pregnancy was recovered in 40.0%, hypertension was recovered in 50.0% and proteinuria was recovered in 77.8% within 1 year after delivery. CONCLUSION: Preconceptional impairment of maternal renal function and uncontrolled hypertension during pregnancy seem to be an important factors associated with fetal loss and low birth weight, respectively.
Busan ; Creatinine ; Female ; Fetus ; Glomerulonephritis, IGA ; Glomerulonephritis, Membranoproliferative ; Glomerulonephritis, Membranous ; Glomerulosclerosis, Focal Segmental ; Humans ; Hypertension ; Infant, Low Birth Weight ; Infant, Newborn ; Kidney Diseases ; Lupus Nephritis ; Mothers ; Multivariate Analysis ; Pregnancy ; Pregnancy Outcome* ; Pregnancy* ; Proteinuria ; Renal Insufficiency, Chronic* ; Retrospective Studies ; Risk Factors

Necrotizing fasciitis is an uncommon severe infection involving the subcutaneous soft tissue, particularly the superficial and often deep fascia. It is usually associated with systemic toxicity, rapid progression and a mortality rate which varies between 20 and 60%. It can affect any part of the body but is most common on the extremities, especially the leg. Predisposing factors include diabetes mellitus, alcoholism, intravenous drug abusers, abdominal surgery, perineal infection. The prognosis for necrotizing fasciitis depends so heavily on early recognition and determination of the extent of necrosis. Whilist there are reports of acute renal failure occuring in the presence of necrotizing fasciitis, descriptions of the condition in patients with chronic renal failure are rare in the literature. Hence we report a case of necrotizing fasciitis, diagnosed by MRI(Magnetic Resonance Imaging) in chronic renal failure patient.
Acute Kidney Injury ; Alcoholism ; Causality ; Diabetes Mellitus ; Drug Users ; Extremities ; Fascia ; Fasciitis, Necrotizing ; Humans ; Kidney Failure, Chronic* ; Leg ; Magnetic Resonance Imaging ; Mortality ; Necrosis ; Prognosis

No abstract available.

OBJECTIVE: The purpose of this study is to determine the effects of the methods of anesthesia on fetal acidemia following elective cesarean delivery among uncomplicated healthy parturients at term, with a single fetus and is to see the correlation of that results with maternal age, Apgar score. MATERIALS AND METHODS: The gestational age more than 37 weeks, singleton, estimated birth weight more than 2.5 kg with ultrasonographic profiles, 98 cases of uncomplicated parturients were included. Three methods of anesthesia - general, epidural, spinal - were chosen randomly. Umbilical artery blood samples just after delivery were obtained from a double clamped segment of cord using a 3 ml syringe that had been flushed with heparin, then transported in ice to the laboratory. RESULTS: There was no statistically significant difference between the three anesthesia groups in regarding to maternal age, birth weight, and Apgar score. The incidence of fetal acidemia was more prevalent in the epidural anesthesia group than the others, and less in the general anesthesia group. No clinically pathologic neonatal outcome was happened even one case of pathologic fetal acidemia among the spinal anesthesia group. The average PO2 of umbilical artery was 19.7 mmHg, and there was no statistically significant difference between the three anesthesia groups. The average PCO2 of umbilical artery was statistically high in the epidural anesthesia group. CONCLUSION: This study shows that the fetal acidemia can occur in three methods of anesthesia. Because there is no difference between the three methods of anesthesia with regarding to 1-minute, 5-minute Apgar scores and there is no specific finding for postpartum follow up of 1month. In conclusion, any method of anesthesia can be used safely in the view of neonatal outcome for elective cesarean delivery.
Anesthesia* ; Anesthesia, Epidural ; Anesthesia, General ; Anesthesia, Spinal ; Apgar Score ; Birth Weight ; Fetus ; Follow-Up Studies ; Gestational Age ; Heparin ; Ice ; Incidence ; Maternal Age ; Postpartum Period ; Syringes ; Umbilical Arteries

OBJECTIVE: The purpose of this study is to determine the effects of the methods of anesthesia on fetal acidemia following elective cesarean delivery among uncomplicated healthy parturients at term, with a single fetus and is to see the correlation of that results with maternal age, Apgar score. MATERIALS AND METHODS: The gestational age more than 37 weeks, singleton, estimated birth weight more than 2.5 kg with ultrasonographic profiles, 98 cases of uncomplicated parturients were included. Three methods of anesthesia - general, epidural, spinal - were chosen randomly. Umbilical artery blood samples just after delivery were obtained from a double clamped segment of cord using a 3 ml syringe that had been flushed with heparin, then transported in ice to the laboratory. RESULTS: There was no statistically significant difference between the three anesthesia groups in regarding to maternal age, birth weight, and Apgar score. The incidence of fetal acidemia was more prevalent in the epidural anesthesia group than the others, and less in the general anesthesia group. No clinically pathologic neonatal outcome was happened even one case of pathologic fetal acidemia among the spinal anesthesia group. The average PO2 of umbilical artery was 19.7 mmHg, and there was no statistically significant difference between the three anesthesia groups. The average PCO2 of umbilical artery was statistically high in the epidural anesthesia group. CONCLUSION: This study shows that the fetal acidemia can occur in three methods of anesthesia. Because there is no difference between the three methods of anesthesia with regarding to 1-minute, 5-minute Apgar scores and there is no specific finding for postpartum follow up of 1month. In conclusion, any method of anesthesia can be used safely in the view of neonatal outcome for elective cesarean delivery.
Anesthesia* ; Anesthesia, Epidural ; Anesthesia, General ; Anesthesia, Spinal ; Apgar Score ; Birth Weight ; Fetus ; Follow-Up Studies ; Gestational Age ; Heparin ; Ice ; Incidence ; Maternal Age ; Postpartum Period ; Syringes ; Umbilical Arteries