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1.
Trans R Soc Trop Med Hyg ; 116(12): 1145-1153, 2022 12 02.
Article in English | MEDLINE | ID: mdl-35748511

ABSTRACT

BACKGROUND: Sarcopenia is a common complication of cirrhosis and an important predictor of morbimortality. We aimed to determine the prevalence of sarcopenia and its associated factors in hepatosplenic schistosomiasis (HSS) as well as to evaluate whether muscle mass and function are associated with variceal upper gastrointestinal bleeding (VUGIB) and previous splenectomy in subjects without other liver diseases. METHODS: We conducted a cross-sectional study including adults with HSS who underwent clinical, biochemical, anthropometric, muscle strength and physical performance evaluations and were submitted to bioelectrical impedance analysis and abdominal ultrasound. Sarcopenia was diagnosed according to the 2019 European consensus criteria. RESULTS: A total of 66 patients with HSS (62.1% male; mean age 48.8±8.6 y) were included. Overall, six subjects (9.1%) were diagnosed with probable sarcopenia and none had confirmed sarcopenia. Fat-free body mass index (BMI) was independently associated with VUGIB (odds ratio 0.701 [95% confidence interval 0.51 to 0.96]; p=0.025). Compared with patients who did not undergo surgery, individuals who underwent esophagogastric devascularization combined with splenectomy (EGDS) had higher serum lipid levels, fat percentage and frequency of metabolic syndrome, with lower skeletal muscle mass index and hand grip strength. CONCLUSIONS: HSS mansoni seems not to cause sarcopenia. However, a lower fat-free BMI was associated with previous VUGIB and the subgroup of patients who underwent EGDS presented higher lipid levels, fat percentage and frequency of metabolic syndrome and lower muscle mass and function.


Subject(s)
Metabolic Syndrome , Sarcopenia , Schistosomiasis mansoni , Schistosomiasis , Splenic Diseases , Adult , Humans , Male , Middle Aged , Female , Splenectomy/adverse effects , Schistosomiasis mansoni/complications , Schistosomiasis mansoni/surgery , Sarcopenia/complications , Sarcopenia/diagnostic imaging , Sarcopenia/epidemiology , Cross-Sectional Studies , Metabolic Syndrome/complications , Hand Strength , Gastrointestinal Hemorrhage/etiology , Gastrointestinal Hemorrhage/complications , Splenic Diseases/epidemiology , Splenic Diseases/etiology , Splenic Diseases/surgery , Body Composition , Schistosomiasis/complications , Lipids
2.
Trans R Soc Trop Med Hyg ; 116(8): 704-709, 2022 08 05.
Article in English | MEDLINE | ID: mdl-35181791

ABSTRACT

BACKGROUND: Deposition of Schistosoma mansoni eggs in the brain of patients with hepatosplenic schistosomiasis (HS-SM) is frequent and usually asymptomatic. However, it is questioned whether it could cause seizures. Thus, we investigated the occurrence of seizures in these patients and also searched for parameters associated with this disorder. METHODS: In a cross-sectional survey, we compared 128 patients with HS-SM with 102 patients with portal hypertension due to compensated chronic hepatic disease of other etiologies. A standardized questionnaire, emphasizing epilepsy-related parameters, was applied to all participants. RESULTS: Eight (6.3%) patients with HS-SM had a history of seizures, whereas this condition was reported by three (2.9%) individuals from the comparison group (p=0.354). None of the variables were associated with the occurrence of seizures, either in univariate or in multivariate analysis. CONCLUSIONS: The frequency of seizures was similar in both study groups. However, it was higher than that described in population-based studies. Thus, we hypothesize that HS-SM individuals may have a higher frequency of seizure. The lack of difference between the two study groups may be explained by the inclusion of cases of HS-MS overlapping other chronic liver diseases in the comparison group, because this finding is relatively common in schistosome-endemic areas.


Subject(s)
Liver Diseases , Neuroschistosomiasis , Schistosomiasis mansoni , Schistosomiasis , Animals , Brazil/epidemiology , Cross-Sectional Studies , Humans , Neuroschistosomiasis/complications , Schistosoma mansoni , Schistosomiasis/complications , Schistosomiasis mansoni/complications , Schistosomiasis mansoni/epidemiology , Seizures/epidemiology , Seizures/etiology , Surveys and Questionnaires
3.
Trans R Soc Trop Med Hyg ; 116(1): 26-33, 2022 01 19.
Article in English | MEDLINE | ID: mdl-33728472

ABSTRACT

BACKGROUND: Ultrasonography is limited for differentiating portal hypertension due to liver cirrhosis from that secondary to hepatosplenic schistosomiasis (HSS). We aimed to investigate the role of transient elastography (TE) in differentiating HSS mansoni from cirrhosis and the factors associated with liver and spleen stiffness (LS and SS) in HSS. METHOD: A cross-sectional study was conducted including patients with HSS mansoni (n=29) and liver cirrhosis due to non-alcoholic steatohepatitis (n=23). All patients underwent TE and those with HSS were assessed by the Niamey protocol. RESULTS: HSS subjects presented lower median LS (9.6 vs 21.3 Kpa, p<0.001) and liver controlled attenuation parameter (229 vs 274 dB/m, p=0.010) than cirrhosis subjects, in addition to higher SS (73.5 vs 42.2 Kpa, p=0.002). The area under the receiver operating characteristic curve for detecting cirrhosis by LS was 0.947 (95% CI 0.89 to 1.00, p<0.001), with an optimal cut-off of 11.75 Kpa. In HSS subjects, higher SS was associated with the presence of the following: diabetes mellitus (p=0.036), metabolic syndrome (p=0.043), esophageal varices (p=0.001), portal vein thrombosis (p=0.047) and previous variceal bleeding (p=0.011). In HSS patients without portal vein thrombosis, variceal bleeding was associated with higher SS (p=0.018). Niamey categories were not associated with LS (p=0.676) or SS (p=0.504). CONCLUSION: TE can play a role in differentiating HSS from cirrhosis, especially by LS. SS may be further investigated for predicting complications in HSS.


Subject(s)
Esophageal and Gastric Varices , Fascioliasis , Schistosomiasis mansoni , Schistosomiasis , Thrombosis , Cross-Sectional Studies , Esophageal and Gastric Varices/diagnostic imaging , Esophageal and Gastric Varices/etiology , Gastrointestinal Hemorrhage/diagnostic imaging , Gastrointestinal Hemorrhage/etiology , Humans , Liver Cirrhosis/diagnosis , Liver Cirrhosis/diagnostic imaging , Schistosomiasis/complications , Schistosomiasis mansoni/diagnosis , Schistosomiasis mansoni/diagnostic imaging , Spleen/diagnostic imaging , Thrombosis/complications
4.
Front Immunol ; 12: 708959, 2021.
Article in English | MEDLINE | ID: mdl-34447378

ABSTRACT

Cytokines are involved in the immunopathogenesis of nonalcoholic fatty liver disease (NAFLD), but the relationship between them and clinical parameters of NAFLD progression is still unknown. Using flow cytometry, we evaluated the plasma levels of IL-1ß, IL-6, IL-12, TNF and IL-10 and their association with clinical and biochemical parameters of liver function during simple steatosis (NAFL) and nonalcoholic steatohepatitis (NASH) in biopsy-proven patients. The NASH patients showed higher levels of IL-6 associated with a lower IL-10/IL-6 ratio. Besides heatmaps were similar in the NAFL and NASH groups, the same did not occur in signature curves, the NASH patients were high producers to IL-12 and IL-6 while the NAFL patients were not high producers of any cytokines evaluated. Integrative biomarker network analysis revealed that cytokines are differently correlated with clinical parameters, while IL-12, IL-10 presented moderate and negative correlations with glycemic and lipid profile in the NAFL group. The NASH group IL-12 and TNF revealed stronger and positive correlations with transient elastography parameters and NAFLD liver fibrosis score. These data suggest that IL-6 and IL-10 might act in chronic inflammation and insulin resistance whereas IL-12 and TNF may be involved in promoting liver damage and NAFLD progression. Plasma concentration analysis of these molecules and their association with clinical parameters can be used as new biomarkers to monitoring NAFLD progression and to reflect NASH development.


Subject(s)
Cytokines/blood , Inflammation/etiology , Liver/pathology , Non-alcoholic Fatty Liver Disease/diagnosis , Adult , Aged , Biomarkers/blood , Cytokines/physiology , Disease Progression , Female , Humans , Male , Middle Aged , Non-alcoholic Fatty Liver Disease/immunology , Non-alcoholic Fatty Liver Disease/pathology
5.
Trans R Soc Trop Med Hyg ; 115(9): 1004-1009, 2021 09 03.
Article in English | MEDLINE | ID: mdl-33537723

ABSTRACT

BACKGROUND: Portal vein thrombosis (PVT) has been described in nearly 50% of patients who underwent oesophagogastric devascularization combined with splenectomy (EGDS), but no previous study has compared its occurrence in surgical and non-surgical groups. This study aimed to investigate PVT in hepatosplenic schistosomiasis (HSS) and its association with EGDS and upper variceal bleeding (UVB). METHODS: Retrospectively, 104 HSS individuals were enrolled. Following EGDS, the occurrence of PVT, mesenteric vein thrombosis (MVT), hospital admissions and UVB were recorded. RESULTS: EGDS was performed in 27 (26%) patients. PVT and MVT were detected in 30 (33%) and 8 (9.8%) patients, respectively. Patients who underwent EGDS were at greater risk of PVT (63% vs 19.7%; odds ratio [OR] 6.12 [95% confidence interval {CI} 2.3 to 16.1], p<0.001) when compared with a non-surgical approach. There was no significant difference in UVB occurrence and ß-blocker usage. PVT was associated with more hospital admissions (p=0.030) and higher alkaline phosphatase levels (p=0.008). UVB occurrence in patients with and without thrombosis was similar. In multivariate analysis, after adjustment, PVT was associated with the surgical approach (OR 4.56 [95% CI 1.55 to 13.38], p=0.006) and age at HSS diagnosis (OR 0.94 [95% CI 0.90 to 0.99], p=0.021). CONCLUSIONS: EGDS was not associated with a decreased frequency of UVB when compared with the non-surgical approach but was an independent risk factor for PVT.


Subject(s)
Esophageal and Gastric Varices , Schistosomiasis , Esophageal and Gastric Varices/pathology , Gastrointestinal Hemorrhage/epidemiology , Gastrointestinal Hemorrhage/etiology , Gastrointestinal Hemorrhage/pathology , Humans , Liver Cirrhosis/pathology , Portal Vein/pathology , Retrospective Studies , Schistosomiasis/complications , Splenectomy/adverse effects
6.
Ann Hepatol ; 20: 100229, 2021.
Article in English | MEDLINE | ID: mdl-32745630

ABSTRACT

INTRODUCTION: Nonalcoholic fatty liver disease (NAFLD) patients can progress to cirrhosis. In these, there is a compensated stage in which esophageal varices can exist. However, no more than 20% of these patients have varices needing treatment (VNT). OBJECTIVE: Evaluate the accuracy of non-invasive models to predict esophageal varices, as well as their performance to avoid esophagogastroduodenoscopy (EGD) with a risk of missing VNT of less than 5%, in Brazilian patients with compensated advanced chronic liver disease (cACLD) secondary to NAFLD. METHODS: Twenty-one patients with biopsy-proven cACLD secondary to NAFLD were submitted to liver stiffness measurement (LSM) by transient elastography (TE), and data were collected to measure platelet count/spleen diameter ratio (PSR), LSM-spleen diameter to platelet ratio score (LSPS), varices risk score (VRS), Baveno VI, Expanded Baveno VI and NAFLD cirrhosis criteria. RESULTS: The mean age was 61 (±6.6) years, and 81% were female; 14% presented VNT. For detection of VNT, LSPS and VRS performed excellently, with an area under receiver operating characteristic (AUROC) of 0.961 for both. LSM presented an AUROC of 0.889 and a cutoff point of 21.8 kPa. LSPS and VRS enabled sparing 75-80% of EGDs for VNT, with no risk of missing varices. Expanded Baveno VI enabled sparing 71% of EGDs, with 4.8% risk of missing VNT. CONCLUSION: LSPS and VRS performed excellently in both predicting VNT and sparing EGD, and Expanded Baveno VI showed good performance in sparing EGDs, with acceptable risk of missing VNT. An LSM cutoff point was established and had good performance.


Subject(s)
Esophageal and Gastric Varices/diagnosis , Esophageal and Gastric Varices/etiology , Non-alcoholic Fatty Liver Disease/complications , Aged , Brazil , Chronic Disease , Cross-Sectional Studies , Elasticity Imaging Techniques , Endoscopy, Digestive System , Female , Humans , Male , Middle Aged , Platelet Count , Predictive Value of Tests , ROC Curve
7.
Arch Endocrinol Metab ; 64(3): 235-242, 2020.
Article in English | MEDLINE | ID: mdl-32555989

ABSTRACT

OBJECTIVE: Polycystic ovary syndrome (PCOS) is a recognized risk factor for nonalcoholic fatty liver disease (NAFLD). The aims of this study were to investigate the prevalence and factors associated with NAFLD in women with PCOS and evaluate noninvasive indices of hepatic fibrosis in patients with PCOS and NAFLD. SUBJECTS AND METHODS: Patients with PCOS (n = 87) and women without PCOS (n = 40; controls) were included. NAFLD was diagnosed by abdominal ultrasonography after exclusion of alcohol consumption and viral or autoimmune liver disease. Anthropometric, clinical and metabolic variables, homeostasis model assessment of insulin resistance (HOMA-IR) index, lipid accumulation product (LAP), FIB-4 index, NAFLD score, and transient elastography (TE; FibroScan) were obtained in subsets of patients with PCOS and NAFLD. RESULTS: A total of 87 patients with PCOS were included (mean age: 34.4 ± 5.7 years, mean body mass index [BMI]: 34.7 ± 4.7 kg/m 2 ). NAFLD was present in 67 (77.0%) patients with PCOS versus 21 of 40 (52.5%) controls (p = 0.005). Women with PCOS and liver steatosis, compared with their NAFLD-free counterparts, had higher values of BMI, waist circumference, triglycerides, total cholesterol, alanine and aspartate aminotransferases, and γ-glutamyltransferase, along with higher frequencies of obesity, metabolic syndrome, and insulin resistance. NAFLD was independently associated with waist circumference, serum triglycerides, and alanine aminotransferase levels. The FIB-4 index was not compatible with advanced fibrosis in any of the evaluated patients, while NAFLD score and TE were compatible with advanced liver fibrosis in 1 of 26 (3.8%) and 3 of 25 (12%) patients, respectively. CONCLUSION: Women with PCOS had a high risk of NAFLD, and a combination of both was associated with central obesity, dyslipidemia, insulin resistance, and metabolic syndrome. Noninvasive methods suggested low rates of severe hepatic fibrosis in Brazilian women with PCOS. Arch Endocrinol Metab. 2020;64(3):235-42.


Subject(s)
Non-alcoholic Fatty Liver Disease/etiology , Polycystic Ovary Syndrome/complications , Adult , Body Mass Index , Case-Control Studies , Female , Humans , Insulin Resistance , Middle Aged , Non-alcoholic Fatty Liver Disease/physiopathology , Polycystic Ovary Syndrome/physiopathology , Risk Factors , Waist Circumference
8.
Arch. endocrinol. metab. (Online) ; 64(3): 235-242, May-June 2020. tab, graf
Article in English | LILACS | ID: biblio-1131095

ABSTRACT

ABSTRACT Objective Polycystic ovary syndrome (PCOS) is a recognized risk factor for nonalcoholic fatty liver disease (NAFLD). The aims of this study were to investigate the prevalence and factors associated with NAFLD in women with PCOS and evaluate noninvasive indices of hepatic fibrosis in patients with PCOS and NAFLD. Subjects and methods Patients with PCOS (n = 87) and women without PCOS (n = 40; controls) were included. NAFLD was diagnosed by abdominal ultrasonography after exclusion of alcohol consumption and viral or autoimmune liver disease. Anthropometric, clinical and metabolic variables, homeostasis model assessment of insulin resistance (HOMA-IR) index, lipid accumulation product (LAP), FIB-4 index, NAFLD score, and transient elastography (TE; FibroScan) were obtained in subsets of patients with PCOS and NAFLD. Results A total of 87 patients with PCOS were included (mean age: 34.4 ± 5.7 years, mean body mass index [BMI]: 34.7 ± 4.7 kg/m 2 ). NAFLD was present in 67 (77.0%) patients with PCOS versus 21 of 40 (52.5%) controls (p = 0.005). Women with PCOS and liver steatosis, compared with their NAFLD-free counterparts, had higher values of BMI, waist circumference, triglycerides, total cholesterol, alanine and aspartate aminotransferases, and γ-glutamyltransferase, along with higher frequencies of obesity, metabolic syndrome, and insulin resistance. NAFLD was independently associated with waist circumference, serum triglycerides, and alanine aminotransferase levels. The FIB-4 index was not compatible with advanced fibrosis in any of the evaluated patients, while NAFLD score and TE were compatible with advanced liver fibrosis in 1 of 26 (3.8%) and 3 of 25 (12%) patients, respectively. Conclusion Women with PCOS had a high risk of NAFLD, and a combination of both was associated with central obesity, dyslipidemia, insulin resistance, and metabolic syndrome. Noninvasive methods suggested low rates of severe hepatic fibrosis in Brazilian women with PCOS. Arch Endocrinol Metab. 2020;64(3):235-42


Subject(s)
Humans , Female , Adult , Polycystic Ovary Syndrome/complications , Non-alcoholic Fatty Liver Disease/etiology , Polycystic Ovary Syndrome/physiopathology , Insulin Resistance , Body Mass Index , Case-Control Studies , Risk Factors , Waist Circumference , Non-alcoholic Fatty Liver Disease/physiopathology , Middle Aged
9.
Nutrients ; 8(7)2016 Jun 28.
Article in English | MEDLINE | ID: mdl-27367724

ABSTRACT

Nonalcoholic fatty liver disease is the most prevalent chronic liver disease in Western countries; it can progress to nonalcoholic steatohepatitis (NASH), cirrhosis and hepatocarcinoma. The importance of gut-liver-adipose tissue axis has become evident and treatments targeting gut microbiota may improve inflammatory and metabolic parameters in NASH patients. In a randomized, controlled clinical trial, involving 50 biopsy-proven NASH patients, we investigated the effects of synbiotic supplementation on metabolic parameters, hepatic steatosis, intestinal permeability, small intestinal bacterial overgrowth (SIBO) and lipopolysaccharide (LPS) serum levels. Patients were separated into two groups receiving Lactobacillus reuteri with guar gum and inulin for three months and healthy balanced nutritional counseling versus nutritional counseling alone. Before and after the intervention we assessed steatosis by magnetic resonance imaging, intestinal permeability by lactulose/mannitol urinary excretion and SIBO by glucose breath testing. NASH patients presented high gut permeability, but low prevalence of SIBO. After the intervention, only the synbiotic group presented a reduction in steatosis, lost weight, diminished BMI and waist circumference measurement. Synbiotic did not improve intestinal permeability or LPS levels. We concluded that synbiotic supplementation associated with nutritional counseling seems superior to nutritional counseling alone for NASH treatment as it attenuates steatosis and may help to achieve weight loss.


Subject(s)
Gastrointestinal Microbiome , Intestines/microbiology , Non-alcoholic Fatty Liver Disease/therapy , Synbiotics/administration & dosage , Adult , Aged , Body Mass Index , Female , Humans , Intestinal Mucosa/metabolism , Lipopolysaccharides/blood , Liver/metabolism , Male , Middle Aged , Permeability , Waist Circumference
10.
J Diabetes Res ; 2016: 9127076, 2016.
Article in English | MEDLINE | ID: mdl-26788524

ABSTRACT

The pathogenesis of nonalcoholic fatty liver disease (NAFLD) is not fully understood, and experimental models are an alternative to study this issue. We investigated the effects of a simple carbohydrate-rich diet on the development of obesity-related NAFLD and the impact of physical training on the metabolic abnormalities associated with this disorder. Sixty Wistar rats were randomly separated into experimental and control groups, which were fed with sucrose-enriched (18% simple carbohydrates) and standard diet, respectively. At the end of each experimental period (5, 10, 20, and 30 weeks), 6 animals from each group were sacrificed for blood tests and liver histology and immunohistochemistry. From weeks 25 to 30, 6 animals from each group underwent physical training. The experimental group animals developed obesity and NAFLD, characterized histopathologically by steatosis and hepatocellular ballooning, clinically by increased thoracic circumference and body mass index associated with hyperleptinemia, and metabolically by hyperglycemia, hyperinsulinemia, hypertriglyceridemia, increased levels of very low-density lipoprotein- (VLDL-) cholesterol, depletion of the antioxidants liver enzymes superoxide dismutase and catalase, and increased hepatic levels of malondialdehyde, an oxidative stress marker. Rats that underwent physical training showed increased high-density lipoprotein- (HDL-) cholesterol levels. In conclusion, a sucrose-rich diet induced obesity, insulin resistance, oxidative stress, and NAFLD in rats.


Subject(s)
Dietary Sucrose , Non-alcoholic Fatty Liver Disease/etiology , Obesity/etiology , Animals , Biomarkers/blood , Blood Glucose/metabolism , Body Mass Index , Catalase/metabolism , Disease Models, Animal , Exercise Therapy/methods , Insulin/blood , Insulin Resistance , Leptin/blood , Lipids/blood , Liver/metabolism , Liver/pathology , Male , Malondialdehyde/metabolism , Non-alcoholic Fatty Liver Disease/blood , Non-alcoholic Fatty Liver Disease/pathology , Non-alcoholic Fatty Liver Disease/therapy , Obesity/blood , Obesity/pathology , Obesity/therapy , Oxidative Stress , Rats, Wistar , Running , Superoxide Dismutase/metabolism , Time Factors
11.
Nutrients ; 6(12): 5583-99, 2014 Dec 03.
Article in English | MEDLINE | ID: mdl-25479248

ABSTRACT

Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. It is a progressive disorder involving a spectrum of conditions that include pure steatosis without inflammation, nonalcoholic steatohepatitis (NASH), fibrosis and cirrhosis. The key factor in the pathophysiology of NAFLD is insulin resistance that determines lipid accumulation in the hepatocytes, which may be followed by lipid peroxidation, production of reactive oxygen species and consequent inflammation. Recent studies suggest that the characteristics of the gut microbiota are altered in NAFLD, and also, that small intestinal bacterial overgrowth (SIBO) contributes to the pathogenesis of this condition. This review presents the chief findings from all the controlled studies that evaluated SIBO, gut permeability and endotoxemia in human NAFLD. We also discuss the possible mechanisms involving SIBO, lipid accumulation and development of NASH. The understanding of these mechanisms may allow the development of new targets for NASH treatment in the future.


Subject(s)
Bacteria/growth & development , Intestine, Small/microbiology , Microbiota , Non-alcoholic Fatty Liver Disease/etiology , Obesity/complications , Animals , Anti-Bacterial Agents/therapeutic use , Bacteria/drug effects , Bacteria/metabolism , Bacterial Translocation , Host-Pathogen Interactions , Humans , Intestine, Small/drug effects , Intestine, Small/immunology , Intestine, Small/physiopathology , Non-alcoholic Fatty Liver Disease/drug therapy , Non-alcoholic Fatty Liver Disease/immunology , Non-alcoholic Fatty Liver Disease/microbiology , Non-alcoholic Fatty Liver Disease/physiopathology , Obesity/immunology , Obesity/physiopathology , Risk Factors , Treatment Outcome
12.
Hepatology ; 59(2): 592-600, 2014 Feb.
Article in English | MEDLINE | ID: mdl-23929663

ABSTRACT

UNLABELLED: Reactivity and titers of autoantibodies vary during the course of autoimmune hepatitis (AIH), and some autoantibodies have been associated with disease activity and adverse outcomes after treatment. The aim of this study was to assess the autoantibody behavior in AIH and its significance as predictors of biochemical and histological remission. A total of 117 patients with AIH (mean age 18.6 [4-69] years) were evaluated and tested for autoantibodies at disease onset and successively (mean 3.2 [2-6] times) after a mean follow-up evaluation of 70 [20-185] months. Antismooth muscle (ASMA), antiliver kidney microsome type 1 (anti-LKM1), antiliver cytosol type 1 (anti-LC1), antimitochondrial, antinuclear (ANA), and antiactin antibodies (AAA) were determined at disease onset and 379 other times during the follow-up evaluation through indirect immunofluorescence in rodent tissues, HEp-2 cells, and human fibroblasts. Anti-SLA/LP were assessed 45 times in the follow-up evaluation of 19 patients using enzyme-linked immunosorbent assay (ELISA). Upon admission, AIH types 1 and 2 were observed in 95 and 17 patients, respectively. Five subjects had AIH with anti-SLA/LP as the sole markers. Patients initially negative for AAA did not develop these antibodies thereafter. ANA were detected de novo in six and three subjects with AIH types 1 and 2, respectively. After treatment, only ASMA (>1:80) and AAA (>1:40) were significantly associated with biochemical (76.9% and 79.8%) and histological features (100% and 100%) of disease activity (P < 0.001). CONCLUSION: With the exception of ANA, the autoantibody profile does not markedly vary in the course of AIH. The persistence of high titers of ASMA and/or AAA in patients with AIH is associated with disease activity.


Subject(s)
Actins/immunology , Antibodies, Anti-Idiotypic/blood , Hepatitis, Autoimmune/diagnosis , Muscle, Smooth/immunology , Adolescent , Adult , Aged , Biomarkers/blood , Child , Child, Preschool , Female , Follow-Up Studies , Hepatitis, Autoimmune/metabolism , Hepatitis, Autoimmune/physiopathology , Humans , Liver/enzymology , Liver/physiopathology , Longitudinal Studies , Male , Middle Aged , Prognosis , Severity of Illness Index , Young Adult
13.
Exp Clin Transplant ; 11(4): 339-45, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23905912

ABSTRACT

OBJECTIVES: The incidence of hepatocellular carcinoma associated with nonalcoholic fatty liver disease is increasing. We sought to compare tumor characteristics and outcomes after a liver transplant according to the cause of liver disease and ethnicity. MATERIALS AND METHODS: We retrospectively evaluated patients with hepatocellular carcinoma (292, 23%) out of all the liver transplant recipients (N=1266) at the University of Miami between 2000 and 2010. Liver disease was caused by hepatitis C virus in 221 patients (76%), nonalcoholic fatty liver disease in 19 patients (6.5%), hepatitis B virus in 20 patients (7%), alcohol in 44 patients (15%), and other in 18 patients (6%). The median age was 57 years (range, 17 to 77 y), 218 were men (75%), 270 were white (92%), and 92 were Hispanic (31.5%). RESULTS: Patients with hepatocellular carcinoma and nonalcoholic fatty liver disease were more likely to be older (64 vs 57; P = .0006), Hispanic (58% vs 30%; P = .018); nonsmokers (89% vs 65%; P = .041), diabetic (84% vs 26% P < .0001), hypertensive (63% vs 27%; P = .003), and using statins (32% vs 4%; P = .0004) compared with hepatocellular carcinoma without nonalcoholic fatty liver disease. Diabetes, hypertension, and nonalcoholic fatty liver disease are significantly more common in Hispanics than in non-Hispanic persons with hepatocellular carcinoma. In persons without hepatocellular carcinoma, the proportion of Hispanics was similar between those with (n=84) and those without (n=1182) nonalcoholic fatty liver disease. Hispanic ethnicity was not associated with worse tumor behavior or overall survival. CONCLUSIONS: Patients transplanted for hepatocellular carcinoma and nonalcoholic fatty liver disease were older, and were more frequently Hispanic than were persons with hepatocellular carcinoma and without [corrected] nonalcoholic fatty liver disease. Hispanic ethnicity may be a risk factor for hepatocellular carcinoma.


Subject(s)
Carcinoma, Hepatocellular/surgery , Fatty Liver/ethnology , Hispanic or Latino/statistics & numerical data , Liver Neoplasms/surgery , Liver Transplantation , White People/statistics & numerical data , Adolescent , Adult , Age Factors , Aged , Carcinoma, Hepatocellular/ethnology , Carcinoma, Hepatocellular/mortality , Chi-Square Distribution , Fatty Liver/mortality , Female , Florida/epidemiology , Hepatitis B/ethnology , Hepatitis C/ethnology , Humans , Kaplan-Meier Estimate , Liver Diseases, Alcoholic/ethnology , Liver Neoplasms/ethnology , Liver Neoplasms/mortality , Liver Transplantation/adverse effects , Liver Transplantation/mortality , Male , Middle Aged , Non-alcoholic Fatty Liver Disease , Retrospective Studies , Risk Factors , Treatment Outcome , Young Adult
14.
J Clin Gastroenterol ; 47(3): e28-32, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23059407

ABSTRACT

GOALS: We sought to determine whether features of metabolic syndrome (MS) and histologic features of nonalcoholic steatohepatitis (NASH) are associated with increased fibrosis in patients with primary biliary cirrhosis (PBC). BACKGROUNDS: PBC is a chronic, progressive cholestatic disease. MS is strongly associated with NASH and fibrosis progression in some liver diseases. STUDY: Patients with PBC seen consecutively at the University of Miami between 1985 and 2008 who had antimitochondrial antibody positivity and a liver biopsy performed at this center at the time of diagnosis were identified. Demographics, clinical features, and biochemical parameters were collected. All liver biopsies were reviewed by a single blinded pathologist for features of NASH, PBC, and fibrosis. The impact of NASH and features of MS on liver biopsy findings were analyzed. RESULTS: Forty-nine patients [median age 51 (34 to 78) years, 98% females] were enrolled. Higher degree of steatosis, severe inflammatory grade, and severe biliary duct damage were each associated with advanced fibrosis (P<0.0001). Regarding MS, only overweight status [body mass index (BMI) ≥ 25] was associated with nonalcoholic fatty liver activity score (NAS) ≥ 5 (P<0.0001), biliary duct damage (P<0.0001), and advanced fibrosis (71% vs. 32%, P=0.007). Patients with NAS ≥ 5 had more severe fibrosis (14/15, 96% vs. 11/34, 44%; P=0.0001) and more severe biliary duct damage (13/15, 87% vs. 3/34, 9%; P=<0.0001). CONCLUSIONS: NASH and BMI ≥ 25 are associated with severe biliary duct damage and fibrosis in patients with PBC. BMI could become a useful noninvasive tool to predict advanced fibrosis in PBC.


Subject(s)
Fatty Liver/pathology , Liver Cirrhosis, Biliary/pathology , Metabolic Syndrome/physiopathology , Overweight/complications , Adult , Aged , Bile Ducts/pathology , Biopsy , Body Mass Index , Disease Progression , Fatty Liver/complications , Female , Humans , Liver Cirrhosis/pathology , Male , Metabolic Syndrome/complications , Middle Aged , Non-alcoholic Fatty Liver Disease , Retrospective Studies , Severity of Illness Index , Single-Blind Method
15.
J Clin Gastroenterol ; 47(1): 83-8, 2013 Jan.
Article in English | MEDLINE | ID: mdl-23059410

ABSTRACT

GOALS/BACKGROUND: The importance of hepatitis B virus (HBV) genotype and mutations has been increasingly recognized. We aimed to determine HBV genotype, precore (PC), and basal core promoter region (BCP) mutations in a HBV multiethnic South Florida population. STUDY: Samples from 213 patients were tested for HBV-DNA using Abbott RealTime HBV IUO assay, and for mutations using INNO-LiPA assay. RESULTS: Patients were predominantly male (67%); 61 (31%) were African American, 60 (28%) Hispanic, 37 (17%) Haitian, 27 (19%) white non-Hispanic, and 14 (6.6%) Asian. Genotype A was found in 101 (69%), D in 25 (17%), F in 9 (6%), G in 7 (5%), C and E in 6 (4%) each, B in 4 (3%), and H in 2 (1%) patients. Mixed genotypes were detected in 11 patients. Genotype A was more prevalent in all ethnicities except for Asian. Among hepatitis B e antigen (HBeAg)-negative patients (59%), BCP, PC, and combined BCP/PC mutations were found in 30 (37.5%), 13 (16.3%), and 14 (17.5%), respectively. Genotype D was associated with higher frequency of HBeAg-negative status [18/24 (75%) vs. 62/121 (51%) P=0.03] and mutations [16/19 (84%) vs. 40/67 (60%) P=0.04] compared with others. Genotype A was negatively associated with mutations [26/31 (84%) vs. 30/55 (55%), P=0.009]. PC mutations were more common in genotype D (14/19, 73%) compared with genotype A (7/54, 13%, P<0.0001). One-hundred percent and 79% of Asians and Haitians had spontaneous mutations, respectively. All Haitians with genotype D had PC mutations and 3 (50%) had BCP/PC. CONCLUSIONS: The present study shows that HBeAg-negative status and spontaneous mutations were more common with genotype D; the presence of genotype D in Haitians was always associated with spontaneous mutations.


Subject(s)
Genotype , Hepatitis B virus/genetics , Hepatitis B virus/isolation & purification , Hepatitis B, Chronic/ethnology , Mutation , Black or African American/statistics & numerical data , DNA, Viral/isolation & purification , Female , Florida/epidemiology , Genomics , Haiti/ethnology , Hepatitis B Core Antigens/blood , Hepatitis B virus/immunology , Hepatitis B, Chronic/epidemiology , Hispanic or Latino/statistics & numerical data , Humans , Male , Prevalence , Promoter Regions, Genetic , Sampling Studies , White People/statistics & numerical data
16.
Hepatol Int ; 7(2): 741-8, 2013 Jun.
Article in English | MEDLINE | ID: mdl-26201809

ABSTRACT

PURPOSE: Post-transplant metabolic syndrome (PTMS) is associated with important causes of morbidity and mortality in solid organ transplant recipients. Our aim was to investigate predictors of PTMS in liver transplant (LT) recipients. METHODS: We randomly selected 343 adults (>18 years of age) from a large cohort of 1,262 ethnically diverse patients who received LTs during 2000-2010. RESULTS: Of 343 patients included, 68.2 % were male, with a mean age of 54 ± 10 years, 87 % White, and 31 % Hispanic. Prior to LTs, 6.2 % were on lipid-lowering agents and 24.5 % had BMI ≥ 30 (mean 26.9 ± 5 kg/m(2)). More Hispanics had diabetes before LTs compared to non-Hispanics (p = 0.037). Among those with follow-up of >6 months (n = 304) after LTs, the proportion of patients with diabetes and hypertension increased from 21.9 to 27 % (p < 0.0001), and from 11.5 to 51.6 % (p < 0.0001), respectively. Cholesterol levels increased from 150 ± 115 to 167 ± 70 (p < 0.0001). BMI remained unchanged. PTMS developed in 41 (13.5 %) and cardiovascular events in 31 (10.2 %) patients. Hispanics had higher risk of developing PTMS compared to non-Hispanics (OR 2.30, 95 % CI 1.18-4.49). Survival was not affected by PTMS (p = 0.3), ethnicity (p = 0.52), or nonalcoholic steatohepatitis as the etiology of liver disease (p = 0.50). CONCLUSIONS: More Hispanics had diabetes before LTs (29 to 18 %, p < 0.05) and were more prone to developing PTMS after LTs compared to non-Hispanics.

17.
Clin Liver Dis ; 15(4): 859-78, 2011 Nov.
Article in English | MEDLINE | ID: mdl-22032533

ABSTRACT

Primary biliary cirrhosis (PBC), primary sclerosing cholangitis (PSC), and autoimmune hepatitis (AIH) each account for approximately 5% of liver transplants per year performed in the United States and Europe. Even though outcomes are excellent, with reported 5-year patient and graft survival exceeding 90% and 80%, 80% and 75%, 72% and 65% for PBC, PSC, and AIH, respectively, the issue of recurrent autoimmune liver disease after orthotopic liver transplantation is increasingly recognized as a cause of graft dysfunction, death, and need for retransplantation. This article reviews diagnostic criteria, epidemiology, risk factors, and outcomes of recurrent PBC, PSC, and AIH after liver transplantation.


Subject(s)
Autoimmune Diseases/diagnosis , Autoimmune Diseases/drug therapy , Liver Diseases/diagnosis , Liver Diseases/drug therapy , Liver Transplantation/statistics & numerical data , Autoimmune Diseases/epidemiology , Europe/epidemiology , Female , Humans , Immunosuppressive Agents/adverse effects , Immunosuppressive Agents/therapeutic use , Incidence , Liver Diseases/epidemiology , Male , Prevalence , Recurrence , Reoperation/statistics & numerical data , Risk Factors , Treatment Outcome , United States/epidemiology
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