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排序方式: 共有159条查询结果,搜索用时 15 毫秒
1.
ALBERTO Q FARIAS LUCIANA L GONÇALVES EDUARDO LR CANÇADO ANTONIO C SEGURO SILVIA B CAMPOS CLARICE P ABRANTES-LEMOS FLAIR J CARRILHO 《Journal of gastroenterology and hepatology》2006,20(1):147-152
Background and Aims: Primary biliary cirrhosis (PBC) might be complicated by osteoporosis, whose etiology remains unknown but seems to be multifactorial. Prevalence rates of 30% to 60% for distal renal tubular acidosis (DRTA) have been reported in PBC patients, generally as incomplete DRTA. Although it is undisputed that a reduced bone mineral density (BMD) is the expected outcome among patients who have been suffering from longstanding chronic metabolic acidosis, it is unclear if incomplete DRTA is also associated with metabolic bone disease in PBC patients. The present study was undertaken to compare the BMD of PBC patients with and without DRTA.
Methods: The BMD of 23 PBC patients (11 with DRTA and 12 without), all with normal clearance of creatinine, was assessed by dual energy radiograph absorptiometry. The diagnosis of DRTA was made if the urine pH was above 5.4 in all samples after the oral acid overload, showing tubular inability to acidify urine in the presence of test-induced systemic metabolic acidosis.
Results: Densitometric signs of osteoporosis were found in 82% of DRTA cases and in 83% of patients without DRTA (difference not significant). There were no significant differences in BMD measurement, T and Z scores of patients with and without DRTA.
Conclusions: The present study could not support a correlation between the presence of DRTA and the bone loss observed in PBC patients. 相似文献
Methods: The BMD of 23 PBC patients (11 with DRTA and 12 without), all with normal clearance of creatinine, was assessed by dual energy radiograph absorptiometry. The diagnosis of DRTA was made if the urine pH was above 5.4 in all samples after the oral acid overload, showing tubular inability to acidify urine in the presence of test-induced systemic metabolic acidosis.
Results: Densitometric signs of osteoporosis were found in 82% of DRTA cases and in 83% of patients without DRTA (difference not significant). There were no significant differences in BMD measurement, T and Z scores of patients with and without DRTA.
Conclusions: The present study could not support a correlation between the presence of DRTA and the bone loss observed in PBC patients. 相似文献
2.
ALCOHOL DEHYDROGENASE FROM HUMAN STOMACH: VARIABILITY IN NORMAL MUCOSA AND EFFECT OF AGE, GENDER, ADH3 PHENOTYPE AND GASTRIC REGION 总被引:5,自引:1,他引:4
MORENO ALBERTO; PARES ALBERT; ORTIZ JORDI; ENRIQUEZ JAIME; PARES XAVIER 《Alcohol and alcoholism (Oxford, Oxfordshire)》1994,29(6):663-671
Alcohol dehydrogenase (ADH) has been analysed in 36 endoscopicbiopsies of normal gastric body and/or antrum mucosa, from 31individuals with an age between 17 and 79 years. Oesophageal,duodenal and oral mucosa specimens have been also examined.Stomach mucosa contains three isozyme types: the 相似文献
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ALESSANDRA MAJORANA ELENA BARDELLINI ALBERTO RAVELLI ALESSANDRO PLEBANI ANTONELLA POLIMENI GUGLIELMO CAMPUS 《International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children》2010,20(2):119-124
International Journal of Paediatric Dentistry 2010; 20: 119–124 Background. The association between coeliac disease (CD) and dental enamel defects (DED) is well known. Aim. The aim of this study was to investigate the prevalence of DED in children with CD and to specifically find the association of DED and gluten exposure period, CD clinical forms, HLA class II haplotype. Design. This study was designed as a matched case–control study: 250 children were enrolled (125 coeliac children – 79 female and 46 male, 7.2 ± 2.8 years and 125 healthy children). Data about age at CD diagnosis, CD clinical form, and HLA haplotype were recorded. Results. Dental enamel defects were detected in 58 coeliac subjects (46.4%) against seven (5.6%) controls (P < 0.005). We found an association between DED and gluten exposure period, as among CD subjects the mean age at CD diagnosis was significantly (P = 0.0004) higher in the group with DED (3.41 ± 1.27) than without DED (1.26 ± 0.7). DED resulted more frequent (100%) in atypical and silent CD forms than in the typical one (30.93%). The presence of HLA DR 52‐53 and DQ7antigens significantly increased the risk of DED (P = 0.0017) in coeliac children. Conclusions. Our results confirmed a possible correlation between HLA antigens and DED. 相似文献
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ALBERTO DOMÍNGUEZ PEDRO ITURRALDE ANTONIO G. HERMOSILLO LUIS COLIN SERGIO KERSHENOVICH LUIS M. GARRIDO 《Pacing and clinical electrophysiology : PACE》1999,22(1):131-134
The preexcitation syndrome is a rare entity during pregnancy. We present a 20-week pregnant patient with Wolff-Parkinson-White syndrome and recurrent episodes of tachycardia with hemodynamic compromise refractory to medical treatment that required electrical cardioversion several times. Due to the poor evolution we performed a successful radiofrequency ablation of a right posteroseptal accessory pathway using 70 seconds of total fluoroscopy time without complications. We consider this is an alternative and safer treatment in those cases in which the tachyarrhythmias compromise the hemodynamic state during pregnancy. 相似文献
8.
Clinical Usefulness of a Mobile Application for the Appropriate Selection of the Antiarrhythmic Device in Heart Failure
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9.
Long‐Term Outcome of Patients with Bifascicular Block and Unexplained Syncope Following Cardiac Pacing
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MATTHEW M. KALSCHEUR M.D. PAOLO DONATEO M.D. KEVIN E. WENZKE M.D. MILENA ASTE M.D. DANIELE ODDONE M.D. ALBERTO SOLANO M.D. ROBERTO MAGGI M.D. FRANCESCO CROCI M.D. RICHARD L. PAGE M.D. MICHELE BRIGNOLE M.D. MOHAMED H. HAMDAN M.D. M.B.A. 《Pacing and clinical electrophysiology : PACE》2016,39(10):1126-1131
10.
FRANCESCO CHILLEMI SILVANA CAPPELLETTI PIERANGELO FRANCESCATO ALBERTO CHERSI 《Chemical biology & drug design》1990,35(3):271-280
Six peptides with amino acid sequences of human histocompatibility Class II membrane glycoproteins were synthesized by conventional solution methods. Five peptides were prepared by stepwise procedures from the carboxyterminus. The sixth was synthesized by fragment condensation (5 + 10 coupling). Antibodies to synthetic peptides were then used to locate exposed and buried regions in the membrane glycoproteins. 相似文献