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1.
Liver Int ; 42(11): 2453-2465, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35932095

RESUMEN

BACKGROUND & AIMS: Obeticholic acid (OCA) has recently been restricted in patients with primary biliary cholangitis (PBC) with "advanced cirrhosis" because of its narrow therapeutic index. We aimed to better define the predicting factors of hepatic serious adverse events (SAEs) and non-response in cirrhotic patients undergoing OCA therapy. METHODS: Safety and efficacy of treatment were evaluated in a cohort of consecutive PBC cirrhotic patients started with OCA. OCA response was evaluated according to the Poise criteria. Risk factors for hepatic SAEs and non-response were reported as risk ratios (RR) with 95% confidence intervals (CIs). RESULTS: One hundred PBC cirrhotics were included, 97 Child-Pugh class A and 3 class B. Thirty-one had oesophageal varices and 5 had a history of ascites. Thirty-three per cent and 32% of patients achieved a biochemical response at 6 and 12 months respectively. Male sex (adjusted-RR 1.75, 95%CI 1.42-2.12), INR (1.37, 1.00-1.87), Child-Pugh score (1.79, 1.28-2.50), MELD (1.17, 1.04-1.30) and bilirubin (1.83, 1.11-3.01) were independently associated with non-response to OCA. Twenty-two patients discontinued OCA within 12 months: 10 for pruritus, 9 for hepatic SAEs (5 for jaundice and/or ascitic decompensation; 4 for upper digestive bleeding). INR (adjusted-RR 1.91, 95%CI 1.10-3.36), lower albumin levels (0.18, 0.06-0.51), Child-Pugh score (2.43, 1.50-4.04), history of ascites (3.5, 1.85-6.5) and bilirubin (1.30, 1.05-1.56), were associated with hepatic SAEs. A total bilirubin≥1.4 mg/dl at baseline was the most accurate biochemical predictor of hepatic SAEs under OCA. CONCLUSIONS: An accurate baseline assessment is crucial to select cirrhotic patients who can benefit from OCA. Although OCA is effective in one third of cirrhotics, bilirubin level ≥1.4 mg/dl should discourage from its use.


Asunto(s)
Cirrosis Hepática Biliar , Albúminas/uso terapéutico , Ascitis/tratamiento farmacológico , Ascitis/etiología , Bilirrubina , Ácido Quenodesoxicólico/análogos & derivados , Humanos , Cirrosis Hepática/complicaciones , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática Biliar/complicaciones , Cirrosis Hepática Biliar/tratamiento farmacológico , Masculino
2.
Am J Physiol Endocrinol Metab ; 309(4): E418-27, 2015 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-26126683

RESUMEN

Inflammation and impaired mitochondrial oxidative phosphorylation are considered key players in the development of several metabolic disorders, including diabetes. We have previously shown inflammation and mitochondrial dysfunction in the hypothalamus of an animal model for anorexia, the anx/anx mouse. Moreover, increased incidence of eating disorders, e.g., anorexia nervosa, has been observed in diabetic individuals. In the present investigation we evaluated whether impaired mitochondrial phosphorylation and inflammation also occur in endocrine pancreas of anorectic mice, and if glucose homeostasis is disturbed. We show that anx/anx mice exhibit marked glucose intolerance associated with reduced insulin release following an intraperitoneal injection of glucose. In contrast, insulin release from isolated anx/anx islets is increased after stimulation with glucose or KCl. In isolated anx/anx islets there is a strong downregulation of the mitochondrial complex I (CI) assembly factor, NADH dehydrogenase (ubiquinone) 1α subcomplex, assembly factor 1 (Ndufaf1), and a reduced CI activity. In addition, we show elevated concentrations of free fatty acids (FFAs) in anx/anx serum and increased macrophage infiltration (indicative of inflammation) in anx/anx islets. However, isolated islets from anx/anx mice cultured in the absence of FFAs do not exhibit increased inflammation. We conclude that the phenotype of the endocrine pancreas of the anx/anx mouse is characterized by increased levels of circulating FFAs, as well as inflammation, which can inhibit insulin secretion in vivo. The anx/anx mouse may represent a useful tool for studying molecular mechanisms underlying the association between diabetes and eating disorders.


Asunto(s)
Anorexia/fisiopatología , Intolerancia a la Glucosa/fisiopatología , Células Secretoras de Insulina/fisiología , Animales , Anorexia/complicaciones , Anorexia/metabolismo , Anorexia/patología , Glucemia/metabolismo , Recuento de Células , Células Cultivadas , Intolerancia a la Glucosa/complicaciones , Intolerancia a la Glucosa/metabolismo , Intolerancia a la Glucosa/patología , Prueba de Tolerancia a la Glucosa , Insulina/sangre , Células Secretoras de Insulina/patología , Ratones , Ratones Endogámicos C57BL , Ratones Transgénicos , Tamaño de los Órganos , Páncreas/patología
3.
J Clin Med ; 10(8)2021 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-33919600

RESUMEN

Primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC) are two chronic cholestatic liver diseases affecting bile ducts that may progress to biliary cirrhosis. In the past few years, the increasing knowledge in the pathogenesis of both diseases led to a growing number of clinical trials and possible new targets for therapy. In this review, we provide an update on the treatments in clinical use and summarize the new drugs in trials for PBC and PSC patients. Farnesoid X Receptor (FXR) agonists and Pan-Peroxisome Proliferator-Activated Receptor (PPAR) agonists are the most promising agents and have shown promising results in both PBC and PSC. Fibroblast Growth Factor 19 (FGF19) analogues also showed good results, especially in PBC, while, although PBC and PSC are autoimmune diseases, immunosuppressive drugs had disappointing effects. Since the gut microbiome could have a potential role in the pathogenesis of PSC, recent research focused on molecules that could change the microbiome, with good results. The near future of the medical management of these diseases may include new treatments or a combination of multiple drugs targeting different signaling pathways at different stages of the diseases.

4.
Dig Liver Dis ; 52(4): 434-439, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-31874836

RESUMEN

BACKGROUND AND AIMS: Hepatitis E Virus is endemic in Europe with increasing numbers of cases in recent years, also in Italy where this phenomenon has hitherto been modest. The aim of this study was to document the clinical features/natural history of locally acquired hepatitis E in our territory and explore factors which determine adverse outcome. METHODS: Retrospective study of patients with locally-acquired HEV (hepatitis E virus) in Marche, Italy (2011-2019). RESULTS: 1189 patients were tested for HEV with 89 confirmed cases. 81 (6.8%) had locally acquired infection; 54 (66%) were male (mean age 55.5 years) and 32 (39.5%) had active co-morbidities. 41 cases were viraemic (all HEV-3 (HEV genotype 1,2,3,4)); acute infection was found in 79 and chronic infection in 2. Forty-five cases (55%) required admission to hospital, for a total of 785 days. 4 patients developed acute on-chronic liver failure, 6 developed acute kidney injury and 8 died: all had active comorbidities. Univariate analysis showed that bilirubin, INR, immunosuppression, cirrhosis and diabetes were associated with death. On multivariant analysis the only predictor of death was the presence of diabetes (p = 0.04). CONCLUSIONS: Hepatitis E in Marche Italy is mostly locally acquired and caused by HEV-3 that impacts on the morbidity and mortality particularly for fragile patients.


Asunto(s)
Lesión Renal Aguda/epidemiología , Insuficiencia Hepática Crónica Agudizada/epidemiología , Hepatitis E/epidemiología , Cirrosis Hepática/epidemiología , Adulto , Anciano , Femenino , Genotipo , Virus de la Hepatitis E/genética , Virus de la Hepatitis E/aislamiento & purificación , Humanos , Huésped Inmunocomprometido , Italia/epidemiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo
5.
Schizophr Res ; 146(1-3): 1-9, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23499244

RESUMEN

BACKGROUND: Electroconvulsive therapy (ECT) is a medical treatment that is most effective for mood disorders (Bipolar Disorder and Major Depression). It has also been shown to be an effective treatment for schizophrenia accompanied by catatonia, extreme depression, mania and other affective components. ECT is currently under-used in many psychiatric settings due to its stigmatized perception by patients and mental health professionals. However, many unanswered questions remain regarding its role in the management of patients with schizophrenia. AIM: Evaluate the main indications of ECT in subjects suffering from schizophrenia. OBJECTIVES: Investigate the efficacy and the main indications of ECT in the treatment of schizophrenic patients, evaluate its effects in the short-term and the long-term, compare ECT treatment with pharmacotherapy, and assess the effects of treatment with ECT. METHODS: A systematic review of the literature was conducted on the use of ECT for schizophrenia. Thirty one articles from peer-reviewed journals were identified, and the most relevant articles were selected for this review. RESULTS: The most common indication for using ECT for schizophrenia patients was to augment pharmacotherapy, while the most common accompanying symptoms were, in order, catatonia, aggression and suicide. Catatonic patients responded significantly better to ECT than patients with any other subtype of schizophrenia. The combination of ECT with pharmacotherapy can be useful for drug-resistant patients. The use of an ECT-risperidone combination or ECT-clozapine combination in patients non-responsive to prior pharmacotherapy was found to be most effective. CONCLUSIONS: This review indicates that ECT, combined with pharmacotherapy, may be a viable option for a selected group of patients with schizophrenia. In particular, the use of ECT is recommended for drug-resistant patients, for schizophrenic patients with catatonia, aggression or suicidal behavior, and when rapid global improvement and reduction of acute symptomatology are required.


Asunto(s)
Terapia Electroconvulsiva/métodos , Esquizofrenia/terapia , Resultado del Tratamiento , Humanos
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