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1.
Eur J Med Res ; 16(2): 76-8, 2011 Feb 24.
Artigo em Inglês | MEDLINE | ID: mdl-21463986

RESUMO

OBJECTIVES: Oxidative stress is suggested to play an important role in the pathogenesis of nonalcoholic steatohepatitis (NASH). The present study was aimed to compare plasma levels of antioxidants in patients suffering from NASH and healthy controls. METHODS: Plasma levels of the antioxidants α-tocopherol, γ-tocopherol, lutein, zeaxanthin, ß-cryptoxanthin, lycopene, α-carotene ß-carotene were determined in 57 patients with biopsy-proven NASH and 40 healthy controls. RESULTS: Levels of α-tocopherol (22.4 vs. 26.8 nmol/ ml; p<0.01), lutein (0.19 vs. 0.33 nmol/ml; p<0.0001), zeaxanthin (0.04 vs. 0.08 nmol/ml; p<0.0001), lyco?pene (0.15 vs. 0.42 nmol/ml; p<0.0001), α-carotene (0.03 vs. 0.06 nmol/ml; p<0.005) and ß-carotene (0.25 vs. 0.39 nmol/ml; p<0.01) were significantly decreased in NASH patients compared to controls. Age, aminotransferase status (ALT, AST) and BMI were not correlated with the levels of tocopherols or caro?tenoids. CONCLUSIONS: Given the decreased levels supplementation of lipophilic antioxidants might be a rational treatment option for patients with NASH.


Assuntos
Antioxidantes/metabolismo , Carotenoides/sangue , Fígado Gorduroso/sangue , Vitamina E/sangue , Fígado Gorduroso/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/fisiologia
2.
Br J Pharmacol ; 159(6): 1354-66, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20136828

RESUMO

BACKGROUND AND PURPOSE: The uterine pathophysiology underlying inflammatory conditions such as chorioamnionitis remains largely unclear. As we have shown that beta(3)-adrenoceptors act as regulators of myometrial inflammation, we wanted to investigate the potential role of beta(3)-adrenoceptors in preventing uterine remodelling induced by inflammation. EXPERIMENTAL APPROACH: The consequences of human chorioamnionitis on myometrial remodelling were characterized by Sirius Red staining and metalloproteinase (MMP) expression, and compared with the effects of incubating human myometrial samples with Escherichia coli lipopolysaccharide (LPS) in vitro. We also assessed the effect of SAR150640, a selective beta(3)-adrenoceptor agonist, on the production and activity of MMPs. KEY RESULTS: Chorioamnionitis was associated with a 46% decrease in total collagen, as well as over-expression of MMP2 (+61%) and MMP9 (+84%); both effects were reproduced by incubation with LPS (10 microg x mL(-1), 48 h). LPS-induced over-expression of MMP2 and MMP9 in normal human myometrium was paralleled by an overactivity of the proteins. Both over-expression and overactivity were prevented by the beta(3)-adrenoceptor agonist SAR150640 in a concentration-dependent manner. SAR150640, by itself, did not exhibit any effect on MMP production in control tissues. CONCLUSIONS AND IMPLICATIONS: This study shows that inflammation was associated with an intense remodelling of human myometrium, a process likely to be explained by MMP activation. Our study emphasizes the potential therapeutic relevance of beta(3)-adrenoceptor agonists to the treatment of preterm labour and other uterine inflammatory conditions.


Assuntos
Agonistas de Receptores Adrenérgicos beta 3 , Benzoatos/farmacologia , Corioamnionite/metabolismo , Metaloproteinases da Matriz/metabolismo , Miométrio/efeitos dos fármacos , Sulfonamidas/farmacologia , Antagonistas de Receptores Adrenérgicos beta 3 , Benzoatos/uso terapêutico , Western Blotting , Corioamnionite/enzimologia , Corioamnionite/patologia , Corioamnionite/prevenção & controle , Relação Dose-Resposta a Droga , Feminino , Humanos , Técnicas In Vitro , Lipopolissacarídeos/farmacologia , Metaloproteinases da Matriz/biossíntese , Modelos Biológicos , Miométrio/enzimologia , Miométrio/metabolismo , Miométrio/patologia , Gravidez , Propranolol/farmacologia , Sulfonamidas/uso terapêutico
3.
Infection ; 35(6): 465-8, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17906840

RESUMO

The most efficient route of transmission of hepatitis C virus (HCV) infection is through contaminated blood. Sexual transmission or other close human contact could play a role in sporadic infections. We describe a case of acute hepatitis C progressing to chronic hepatitis over a follow-up of 4 years in a 44-year-old woman having a long-standing monogamous relationship with an HCV infected partner. The infection followed the accidental exposure to her husband's contaminated blood containing a high viral load. The case reported here is the first characterized by a documented direct percutaneous HCV transmission outside the healthcare setting, and suggests that sexual exposure to HCV should be considered only after an accurate exclusion of other routes of intrafamilial spread of the infection. Such conclusion is based on a thorough and updated review of the literature concerning both sexual and household transmission of HCV.


Assuntos
Hepatite C/transmissão , Cônjuges , Adulto , Transmissão de Doença Infecciosa , Feminino , Seguimentos , Hepacivirus/isolamento & purificação , Hepatite C/diagnóstico , Hepatite C/terapia , Humanos , Masculino , Doenças Virais Sexualmente Transmissíveis/diagnóstico , Doenças Virais Sexualmente Transmissíveis/terapia , Doenças Virais Sexualmente Transmissíveis/transmissão , Carga Viral
4.
Cochrane Database Syst Rev ; (1): CD004996, 2007 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-17253535

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is characterised by fatty deposition in the hepatocytes of patients with minimal or no alcohol intake and without other known cause. NAFLD includes a wide spectrum of histologic abnormalities ranging from hepatic steatosis to non-alcoholic steatohepatitis (NASH), or even cirrhosis. Antioxidant supplements, therefore, could potentially protect cellular structures against oxidative stress and the resulting lipid peroxidation. OBJECTIVES: To systematically evaluate the beneficial and harmful effects of antioxidant supplements versus no intervention, placebo, or other interventions for patients with NAFLD or NASH. SEARCH STRATEGY: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register (June 2006), the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 2, 2006), MEDLINE (1966 to June 2006), EMBASE (1980 to June 2006), and the Chinese Biomedical Database (1978 to June 2006). No language restrictions were applied. SELECTION CRITERIA: Randomised clinical trials evaluating any antioxidant supplements versus no intervention, placebo, or other interventions in patients with NAFLD or NASH. Our inclusion criteria for NAFLD or NASH were based on history of minimal or no alcohol intake, imaging techniques showing hepatic steatosis, and/or histological evidence of hepatic damage (including simple steatosis, fatty infiltration plus nonspecific inflammation, steatohepatitis, fibrosis, and cirrhosis), and by exclusion of other causes of hepatic steatosis. DATA COLLECTION AND ANALYSIS: We extracted data from the identified trials and contacted authors. We used a random-effects model and fixed-effect model with the significant level set at P = 0.05. We evaluated the methodological quality of the randomised trials by looking at how the generation of allocation sequence, allocation concealment, blinding, and follow-up were performed. We made our analyses following the intention-to-treat method by imputing missing data. MAIN RESULTS: We identified six trials: two were regarded of high methodological quality and four of low methodological quality. None of the trials reported any deaths. Treatment with antioxidant supplements showed a significant, though not clinically relevant, amelioration of aspartate aminotransferase levels, but not of alanine aminotransferase levels, as compared to placebo or other interventions. Gamma-glutamyl-transpeptidase was decreased, albeit not significantly, in the treatment arm. Radiological and histological data were too limited to draw any definite conclusions on the effectiveness of these agents. Adverse events were non-specific and of no major clinical relevance. AUTHORS' CONCLUSIONS: There is insufficient data to either support or refute the use of antioxidant supplements for patients with NAFLD. It may be advisable to carry out large prospective randomised clinical trials on this topic.


Assuntos
Antioxidantes/uso terapêutico , Suplementos Nutricionais , Fígado Gorduroso/tratamento farmacológico , Fígado Gorduroso/sangue , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Cochrane Database Syst Rev ; (1): CD005160, 2007 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-17253541

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease is a condition characterised by fatty deposition in the hepatocytes of patients in patients with minimal or no alcohol intake. Some patients develop non-alcoholic steatohepatitis. Bile acids may potentially protect cellular structures and may be of benefit in patients with non-alcoholic fatty liver or steatohepatitis. OBJECTIVES: To systematically evaluate the beneficial and harmful effects of bile acids versus no intervention, placebo, or other interventions for patients with non-alcoholic fatty liver or steatohepatitis. SEARCH STRATEGY: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register (July 2005), the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 2, 2005), MEDLINE (1966 to July 2005), EMBASE (1980 to July 2005), and The Chinese Biomedical Database (1978 to July 2005). No language restrictions were applied. SELECTION CRITERIA: Randomised clinical trials evaluating any bile acids versus no intervention, placebo, or other interventions in patients with NAFLD. DATA COLLECTION AND ANALYSIS: We extracted data from the identified trials as well as contacted authors. We evaluated the methodological quality of the randomised trials by assessing the generation of allocation sequence, allocation concealment, blinding, and follow-up. We made our analyses following the intention-to-treat method by imputing missing data. MAIN RESULTS: We identified four randomised clinical trials randomising 279 patients. Only one of the trials was considered a low-bias risk trial. One of the trials reported a non-liver-related death in the bile acid group. No significant differences were found regarding mortality or improvement in liver function tests observed after treatment with ursodeoxycholic acid. Data on the radiological and histological responses were too scant to draw any definite conclusions. Adverse events were non-specific and considered of no major clinical relevance. AUTHORS' CONCLUSIONS: Presently, there are insufficient data to support or refute the use of ursodeoxycholic acid for patients with non-alcoholic fatty liver or steatohepatitis. It may be advisable to carry out large randomised clinical trials on this topic.


Assuntos
Ácidos e Sais Biliares/uso terapêutico , Colagogos e Coleréticos/uso terapêutico , Fígado Gorduroso/tratamento farmacológico , Ácido Ursodesoxicólico/uso terapêutico , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto
6.
Cochrane Database Syst Rev ; (1): CD005166, 2007 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-17253544

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is characterized by fat accumulation in the liver, which may progress to non-alcoholic steatohepatitis (NASH) and cirrhosis. It is suspected in persons with elevated aminotransferase levels and features of insulin resistance (or metabolic) syndrome. The pathogenesis of NAFLD is not clear and there is no universal treatment. OBJECTIVES: To assess beneficial and harmful effects of drugs improving insulin resistance for NAFLD and/or NASH. SEARCH STRATEGY: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, Science Citation Index Expanded, and The Chinese Biomedical Database until February 2006. SELECTION CRITERIA: We included randomised clinical trials assessing the effects of drugs improving insulin resistance for patients with NAFLD or NASH. DATA COLLECTION AND ANALYSIS: We evaluated the methodological quality of the randomised clinical trials by the generation of the allocation section, allocation concealment, and follow-up. Two independent observers extracted data from each trial. Dichotomous outcomes were reported as odds ratio (OR) with 95% confidence interval (CI). MAIN RESULTS: Only three randomised clinical trials could be included. Two of the trials had unclear allocation concealment. None was blinded regarding outcome assessment. In two trials, metformin was associated with significantly higher normalization of serum alanine aminotransferase (OR fixed 2.83, 95% CI 1.27 to 6.31 versus diet and OR fixed 7.75, 95% CI 2.37 to 25.35 versus vitamin E) and improvement of liver echographic response (OR fixed 5.25, 95% CI 1.09 to 25.21). An improvement of fatty infiltration was observed in a limited number of patients undergoing liver biopsy. In the single pioglitazone trial, a statistically significant improvement of NASH histology was demonstrated. AUTHORS' CONCLUSIONS: At present, there is insufficient data to either support or refute the use of drugs improving insulin resistance for patients with NAFLD, although current limited information suggests a favourable role of drugs improving insulin resistance. It is advisable to carry out large randomised trials on this topic employing clinically relevant outcome measures and adequate methodology, including blinded outcome assessment.


Assuntos
Fígado Gorduroso/tratamento farmacológico , Resistência à Insulina , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Fígado Gorduroso/metabolismo , Humanos , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Vitamina E/uso terapêutico , Vitaminas/uso terapêutico
7.
Cochrane Database Syst Rev ; (1): CD005165, 2007 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-17253543

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease comprises a spectrum of diseases ranging from simple steatosis to non-alcoholic steatohepatitis, fibrosis, and cirrhosis. Probiotics have been proposed as a treatment option because of their modulating effect on the gut flora that could influence the gut-liver axis. OBJECTIVES: To evaluate the beneficial and harmful effects of probiotics for non-alcoholic fatty liver disease and/or steatohepatitis. SEARCH STRATEGY: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register (July 2006), the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 2, 2006), MEDLINE (1966 to May 2006), and EMBASE (1980 to May 2006). No language restrictions were applied. SELECTION CRITERIA: Randomised clinical trials evaluating probiotic treatment in any dose, duration, and route of administration versus no intervention, placebo, or other interventions in patients with non-alcoholic fatty liver disease. The diagnosis was made by history of minimal or no alcohol intake, imaging techniques showing hepatic steatosis and/or histological evidence of hepatic damage, and by exclusion of other causes of hepatic steatosis. DATA COLLECTION AND ANALYSIS: We had planned to extract data in duplicate and analyse results by intention-to-treat. MAIN RESULTS: No randomised clinical trials were identified. Preliminary data from two pilot non-randomised studies suggest that probiotics may be well tolerated, may improve conventional liver function tests, and may decrease markers of lipid peroxidation. AUTHORS' CONCLUSIONS: The lack of randomised clinical trials makes it impossible to support or refute probiotics for patients with non-alcoholic fatty liver disease and non-alcoholic steatohepatitis.


Assuntos
Fígado Gorduroso/terapia , Probióticos/uso terapêutico , Humanos
8.
Anticancer Res ; 26(2B): 1563-5, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16619572

RESUMO

The case of a patient with a non-functional and poorly-differentiated adrenocortical carcinoma, who had an unexpected long-term survival after a right adrenalectomy and subsequent removal of 2 local recurrences, is reported. However, fifteen years after the complete resection of the primary neoplasm, the patient first developed an autoimmune thrombocytopenic purpura and later a mantle cell lymphoma located in the mediastinal lymph nodes. This case confirms the possible growth of a second tumour in patients with adrenocortical carcinomas, especially if presenting a long survival after resection of the primary malignancy, and emphasises the need for the close follow-up of these patients.


Assuntos
Neoplasias do Córtex Suprarrenal/cirurgia , Carcinoma Adrenocortical/cirurgia , Linfoma de Célula do Manto/diagnóstico , Recidiva Local de Neoplasia/cirurgia , Segunda Neoplasia Primária/diagnóstico , Adrenalectomia , Humanos , Linfoma de Célula do Manto/patologia , Segunda Neoplasia Primária/patologia
9.
Dig Liver Dis ; 38(5): 336-40, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16627021

RESUMO

BACKGROUND: The natural history of hepatitis C virus infection in the elderly is poorly known. OBJECTIVE: To assess the mortality rate, the progression of liver disease, the hepatitis C virus carrier state and the co-morbidity in a cohort of 35 out of 1,063 anti-hepatitis C virus positive elderly people prospectively followed-up from 1992 to 2002. METHODS: Liver function tests, hepatitis C virus-RNA analysis, hepatitis C virus genotyping and abdominal ultrasonography were assessed at the beginning of the study, and then, liver function tests and ultrasonography were performed annually during the first 5 years of the follow-up. At the end of the 10-year period, causes of death were recorded, while surviving patients underwent again medical examination, liver function tests and abdominal ultrasonography. RESULTS: Out of 35 patients with a 10-year follow-up, 12 patients died: only 2 (5.7%) from liver-related disease (hepatocellular carcinoma and liver failure), whilst 10 (28.5%) from extrahepatic causes. Out of the two patients dying from liver-related causes, one was hepatitis C virus-RNA positive and one hepatitis C virus-RNA negative. Among the 23 living patients, 13 were hepatitis C virus-RNA positive (56.5%), the majority being infected with genotype 2 (69%); of them, 6 (46.1%) had persistently normal alanine aminotransferase levels. None of the hepatitis C virus-RNA positive individuals had excessive alcohol intake. CONCLUSION: Despite the presumably long duration of infection in our cohort, the liver-related mortality was five-fold lower than that from extrahepatic causes (five-fold higher). Lack of hepatic co-morbidity factors, such as alcohol consumption, seems to be relevant for the limited severity of liver disease.


Assuntos
Hepatite C Crônica/mortalidade , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Estudos de Coortes , Comorbidade , Feminino , Seguimentos , Hepatite C Crônica/diagnóstico por imagem , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Ultrassonografia
10.
Anticancer Res ; 25(6C): 4385-8, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16334112

RESUMO

Congenital anomalies of the spleen range from splenic lobulation, to accessory spleen to polysplenia. Though most of these anatomical variants have no clinical significance, an accessory spleen may simulate a tumor in the adrenal gland, pancreas, stomach or intestine. Alternatively, a missed accessory spleen may be the site of the relapse of a hematological disorder. We, therefore, assessed retrospectively: (i) the frequency of congenital anomalies of the spleen observed during 2650 consecutive laparoscopies and (ii) looked for possible misdiagnoses of the accessory spleen as hematological disorders or solid tumors located in the left upper quadrant of the abdomen. Congenital anomalies of the spleen were detected in 55 cases, accounting for 2.07%. Accessory spleens were observed in 44 patients (1.6%) and spleen lobulation in 11 (0.47%). An accessory spleen was the most common of the splenic anomalies. Among the 44 patients in whom an accessory spleen was discovered laparoscopically, the recognition of this anomaly prevented a relapse of a hematological disease in one case and avoided a useless exploratory laparotomy in the second, where the radiologist had interpreted this malformation as a space-occupying lesion. In the third case, the accessory spleen was initially misdiagnosed as a solid tumor of the pancreas, but was eventually recognized as a congenital anomaly by a second laparoscopy.


Assuntos
Neoplasias Abdominais/diagnóstico , Neoplasias Hematológicas/diagnóstico , Baço/anormalidades , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Feminino , Humanos , Laparoscopia , Pessoa de Meia-Idade , Estudos Retrospectivos
11.
J Clin Endocrinol Metab ; 90(3): 1578-82, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15598693

RESUMO

BACKGROUND/AIMS: An association of nonalcoholic fatty liver disease with the insulin-resistant metabolic syndrome has been suggested. The aim of the study was to assess the association of fatty liver to different degrees of insulin resistance and secretion. METHODS AND RESULTS: The study was performed in 308 alcohol- and virus-negative consecutive patients attending a metabolic clinic, who underwent a complete clinical and biochemical work-up including oral glucose tolerance test and routine liver ultrasonography. Steatosis was graded as absent/mild, moderate, and severe. In nondiabetic subjects, a progressive (P < 0.05) increase in mean homeostasis model of insulin resistance was recorded from the group without steatosis to the groups with mild/moderate and severe steatosis. Severe steatosis was associated with the clustering of the five clinical and biochemical features proposed for the clinical diagnosis of the metabolic syndrome. Subjects with the metabolic syndrome with a more pronounced insulin resistance had a higher prevalence of severe steatosis (P < 0.01) compared with those with homeostasis model of insulin resistance below the median. CONCLUSIONS: The findings stress the heterogeneous presentation of patients with the metabolic syndrome when the diagnosis is based on the broad Adult Treatment Panel III clinical criteria and demonstrate that those who are more insulin resistant have a higher prevalence of severe steatosis.


Assuntos
Fígado Gorduroso/epidemiologia , Fígado Gorduroso/metabolismo , Resistência à Insulina , Síndrome Metabólica/epidemiologia , Síndrome Metabólica/metabolismo , Adulto , Idoso , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/metabolismo , Fígado Gorduroso/diagnóstico por imagem , Feminino , Homeostase , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Índice de Gravidade de Doença , Ultrassonografia
12.
Endoscopy ; 36(12): 1115-8, 2004 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15578306

RESUMO

Bile peritonitis secondary to bile leakage is a rare complication of laparoscopy-guided liver biopsy. We report two cases of bile peritonitis occurring, respectively, during and 6 days after liver biopsy in patients with an initial diagnosis of intrahepatic cholestasis associated with chronic pancreatitis. In both cases, bile leakage was first managed by compression with a palpating probe and, at onset or worsening of symptoms, by suture during laparotomy. However, while the first patient progressed uneventfully during the postoperative period, the second died 13 days after laparotomy. In the latter patient, bile leakage was associated with bleeding from the biopsy site with consequently diminished peritoneal irritation and delayed onset of symptoms. In this patient, pancreatic carcinoma, of which evidence was found at autopsy, may also have contributed to the fatal outcome. In conclusion, bile leakage and secondary peritonitis may also occur in the absence of dilation of the biliary tree and may be fatal, especially if not recognized and treated early.


Assuntos
Bile , Biópsia por Agulha/efeitos adversos , Laparoscopia/efeitos adversos , Fígado/patologia , Peritonite/etiologia , Adulto , Evolução Fatal , Humanos , Masculino , Pessoa de Meia-Idade
14.
Diabetes Nutr Metab ; 15(4): 222-31, 2002 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-12416659

RESUMO

BACKGROUND AND AIMS: In patients with non-insulin dependent diabetes mellitus (T2DM) and associated chronic liver disease, plasma levels of glucose, insulin and triglycerides are high, lipid peroxidation is increased and natural antioxidant reserves are reduced. Thus, we hypothesised that the re-balancing of cell redox levels and amelioration of liver function could result in a better glucose and lipid metabolism. To study this, we assessed the effect of a new oral formulation of an antioxidant agent - silybin-beta-cyclodextrin (named IBI/S) - in patients with chronic alcoholic liver disease and concomitant T2DM. METHODS: Sixty outpatients were enrolled in a three-centre, double blind, randomised, IBI/S vs placebo study. Forty-two (21 in the group IBI/S - 135 mg/d silybin per os - and 21 in the placebo group) concluded the 6-month treatment period. The efficacy parameters included fasting and mean daily plasma glucose levels, glycosylated hemoglobin (HbA1c), basal, stimulated C-peptide and insulin levels, total-, HDL-cholesterol and triglycerides levels in addition to conventional liver function tests. Insulin sensitivity was estimated by HOMA-IR. Malondialdehyde (MDA) was also measured before and after treatment as an index of oxidative stress. RESULTS: Fasting blood glucose levels, which were similar at baseline in IBI/S group and in the placebo group (173.9 mg/dl and 177.1 mg/dl, respectively), decreased to 148.4 mg/dl (-14.7% vs baseline; p = 0.03) in the IBI/S group while they were virtually unchanged in the placebo group. The comparison between the groups at mo 6 (T6) also showed a significant reduction of glucose levels in the IBI/S group (p = 0.03). The same trend was observed in mean daily blood glucose levels, HbA1c and HOMA-IR, although differences were not significant. Basal and stimulated C-peptide values showed that only a few changes had occured in both groups. Such results indicate that insulin secretion was virtually unaffected, as confirmed also by the insulinemia data. Plasma triglycerides concentrations dropped from a baseline value of 186 mg/dl to 111 mg/dl (T6) in the IBI/S group, with significant differences at all instances with respect to baseline values. By contrast, triglycerides increased from 159 mg/dl at entry to 185 mg/dl (T6) in the placebo group. The difference between the groups at T6 was highly significant (p < 0.01). Total and HDL cholesterol as well as liver function tests did not change significantly during the study in both groups. MDA decreased significantly only in the group receiving IBI/S. No clinically relevant side effects were observed in either group. CONCLUSIONS: Oral administration silybin-beta-cyclodextrin in patients with T2DM and compensated chronic alcoholic liver disease causes a significant decrease in both glucose and triglyceride plasma levels. These effects may be due to the recovery of energy substrates, consistent with a reduced lipid peroxidation and an improved insulin activity.


Assuntos
Antioxidantes/uso terapêutico , Ciclodextrinas/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hepatopatias Alcoólicas/complicações , Hepatopatias Alcoólicas/tratamento farmacológico , Silimarina/uso terapêutico , beta-Ciclodextrinas , Glicemia/análise , Peptídeo C/sangue , HDL-Colesterol/sangue , Ciclodextrinas/administração & dosagem , Método Duplo-Cego , Feminino , Hemoglobinas Glicadas/análise , Humanos , Insulina/sangue , Resistência à Insulina , Masculino , Malondialdeído/análise , Pessoa de Meia-Idade , Estresse Oxidativo , Placebos , Silibina , Silimarina/administração & dosagem , Triglicerídeos/sangue , gama-Glutamiltransferase/sangue
15.
Surg Endosc ; 15(7): 757, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11591986

RESUMO

A case of gallbladder agenesis associated with Gilbert's syndrome in a 52-year-old man with a striking family history of cholelithiasis is reported. The diagnosis of Gilbert's syndrome was made 30 years earlier, whereas the anomaly of the gallbladder was manifested when the patient, at the age of 34 years, started complaining of abdominal symptoms suggestive of biliary tract disease. Diagnostic confirmation was accomplished by magnetic resonance cholangiography, thus avoiding laparotomy, whereas conventional hepatobiliary imaging studies and laparoscopy could not achieve a definite diagnosis. No other malformations were detected. To our knowledge, this is the first report of an association between gallbladder agenesis and Gilbert's syndrome. Such association may be incidental or could represent the occurrence of a concomitant metabolic error in adults with isolated agenesis of the gallbladder.


Assuntos
Vesícula Biliar/anormalidades , Doença de Gilbert/epidemiologia , Adulto , Colelitíase/diagnóstico , Colelitíase/epidemiologia , Comorbidade , Doença de Gilbert/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade
16.
Surg Endosc ; 15(7): 760, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11591995

RESUMO

We report the case of a bladder injury that was incurred during diagnostic laparoscopy in a 19-year-old man with hepatomegaly, neuropsychiatric disturbances, and urinary retention whose final diagnosis was Wilson's disease. In order to define the nature of his hepatomegaly, the patient underwent laparoscopy. However, the lack of recognition of urinary retention by the operator and the absence of cooperation by the patient caused bladder injury during the insertion of the Veress needle, resulting in the leakage of a yellow fluid consistent with urine. Since the injury was small, it was managed with antibiotics and bladder drainage, alone and deemed not to require surgical repair. We also discuss potential risk factors and describe some approaches that can help to avoid this laparoscopic complication.


Assuntos
Laparoscopia/efeitos adversos , Bexiga Urinária/lesões , Adulto , Antibacterianos/uso terapêutico , Drenagem/métodos , Hepatomegalia/diagnóstico , Humanos , Laparoscopia/métodos , Masculino , Retenção Urinária/complicações , Retenção Urinária/diagnóstico , Ferimentos Penetrantes/etiologia , Ferimentos Penetrantes/terapia
17.
Surg Laparosc Endosc Percutan Tech ; 10(4): 208-10, 2000 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10961746

RESUMO

Laparoscopy is a relatively safe invasive procedure. However, the rate of bleeding complications during this procedure is still debatable. Moreover, it is not clear whether portal hypertension may increase the risk of this event. The authors analyzed retrospectively the records of 1,000 consecutive patients with chronic liver disease undergoing laparoscopy and guided direct-vision hepatic biopsy, and they examined the rate of bleeding complications from the trocar site after insertion of the Veress needle or after liver biopsy. A total of 400 of 1,000 patients had liver cirrhosis. Of these, 22.7% had splenomegaly, 13.0% had laparoscopic signs of portal hypertension, and 8.2% had esophageal varices. Bleeding occurred in 0.9% of patients from the trocar site, in 0.2% from the biopsy site, and in 0% from the Veress needle site. These figures were independent of the presence of advanced liver disease, with or without portal hypertension. Bleeding complications occur rarely during laparoscopy with guided liver biopsy and do not seem to be related per se to the presence of liver cirrhosis and portal hypertension. If anything, bleeding complications represent an unpredictable event in most cases.


Assuntos
Hematoma/etiologia , Hemoperitônio/etiologia , Hipertensão Portal/complicações , Laparoscopia/efeitos adversos , Cirrose Hepática/complicações , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco
19.
Surg Endosc ; 14(12): 1188, 2000 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11287988

RESUMO

Bowel injuries, which may occur as a result of the insertion of an insufflation needle or trocar, are a rare complication of laparoscopy. They are generally recognized either immediately or a few days after the operation. We present a case of laparoscopic perforation of the small intestine in a patient who had undergone previous pelvic surgery for an ovarian carcinoma. On ultrasound (US), the patient had multiple hepatic lesions resembling hepatic metastases. To confirm the diagnosis, laparoscopy with guided liver biopsy was performed on the grounds that this procedure is regarded as more appropriate than CT- or US-guided hepatic biopsy. Veress needle and trocar insertion were performed at a proper distance from the abdominal scar. However, the abdominal cavity was not visible after the trocar's insertion due to the unexpected presence of adhesions. This precluded the continuation of the procedure. In the following days, the patient experienced only mild abdominal discomfort. However, 2 weeks after laparoscopy, the patient presented signs of peritoneal reaction and underwent laparotomy. Adhesion-fixing jejunal loops to the anterior abdominal wall were discovered at the site of the trocar puncture. Moreover, two hiatuses of these loops were observed and sutured. The follow-up was uneventful. As this case illustrates, laparoscopic bowel injuries remain an unpredictable event. Recognition of this complication may occur several days after the procedure, as the tamponating effect of adhesions on the jejunal hiatus delays the involvement of the peritoneum.


Assuntos
Perfuração Intestinal/diagnóstico , Perfuração Intestinal/etiologia , Intestino Delgado/lesões , Complicações Intraoperatórias/diagnóstico , Laparoscopia/efeitos adversos , Feminino , Humanos , Doença Iatrogênica , Perfuração Intestinal/cirurgia , Complicações Intraoperatórias/etiologia , Complicações Intraoperatórias/cirurgia , Laparoscopia/métodos , Laparotomia/métodos , Pessoa de Meia-Idade
20.
Liver ; 19(5): 381-8, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10533795

RESUMO

AIMS/BACKGROUND: Current therapy for chronic hepatitis C virus (HCV) infection is based on the administration of interferon alpha (IFN) alone or in combination with other anti-viral agents. However, such therapy is effective in only a minority of selected patients. Long-term ursodeoxycholic acid (UDCA) treatment has been reported to improve liver function and structure especially in cholestatic disorders. We investigated the effect of long-term UDCA treatment on liver function in respect to the severity of chronic liver disease and HCV genotypes. METHODS: Forty-five patients with non-cholestatic laparoscopy-biopsy proven HCV-associated chronic hepatitis (n=16) or cirrhosis (n=29) who had not responded to, or were unsuitable for IFN, were randomly assigned to receive UDCA (600 mg/day; n=23) or no therapy (n=22) for 12 months. At entry, all patients were evaluated by means of conventional and quantitative liver function tests (LFTs), including galactose elimination capacity and antipyrine clearance, HCV antibodies, HCV-RNA and HCV genotypes. LFTs were measured at 6 and at 12 months, whereas HCV-RNA was determined again after treatment. RESULTS: Baseline characteristics were comparable in the two study groups. Long-term UDCA therapy was well tolerated. Based on the analysis of variance, there was a significant decrease in serum transaminase, LDH and GGT levels in UDCA treated patients. By contrast, the activities of these enzymes increased in untreated patients, with AST levels reaching statistical significance only. Statistical analysis also showed that the improvement in biochemical markers was more pronounced in UDCA treated patients with liver cirrhosis than in those with chronic hepatitis but was similar in patients with HCV genotype 1b and non-1b. However, HCV-RNA was positive in all patients after treatment. Quantitative LFTs remained, on average, stable over the 12 months of the trial in all groups. CONCLUSIONS: Long-term UDCA treatment is well tolerated in patients with HCV-associated chronic liver disease. The effect appears to be greater in cirrhotics than in patients with chronic hepatitis but is independent of HCV genotypes. Thus, long-term UDCA treatment, despite the absence of an anti-viral effect, seems beneficial in reducing disease activity in patients with chronic hepatitis or cirrhosis who are unsuitable for IFN therapy.


Assuntos
Colagogos e Coleréticos/uso terapêutico , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Ácido Ursodesoxicólico/uso terapêutico , Adolescente , Adulto , Idoso , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Feminino , Genótipo , Hepacivirus/classificação , Hepacivirus/imunologia , Anticorpos Anti-Hepatite C/análise , Hepatite C Crônica/sangue , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/virologia , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , RNA Viral/análise , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Índice de Gravidade de Doença , Resultado do Tratamento , gama-Glutamiltransferase/sangue
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