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1.
Aging Cell ; : e14205, 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38760909

RESUMEN

ATP citrate lyase (ACLY) inhibitors have the potential of modulating central processes in protein, carbohydrate, and lipid metabolism, which can have relevant physiological consequences in aging and age-related diseases. Here, we show that hepatic phospho-active ACLY correlates with overweight and Model for End-stage Liver Disease score in humans. Wild-type mice treated chronically with the ACLY inhibitor potassium hydroxycitrate exhibited delayed early mortality. In AML12 hepatocyte cultures, the ACLY inhibitors potassium hydroxycitrate, SB-204990, and bempedoic acid fostered lipid accumulation, which was also observed in the liver of healthy-fed mice treated with potassium hydroxycitrate. Analysis of soleus tissue indicated that potassium hydroxycitrate produced the modulation of wound healing processes. In vivo, potassium hydroxycitrate modulated locomotor function toward increased wire hang performance and reduced rotarod performance in healthy-fed mice, and improved locomotion in mice exposed to cardiotoxin-induced muscle atrophy. Our findings implicate ACLY and ACLY inhibitors in different aspects of aging and muscle regeneration.

4.
Hepatology ; 2024 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-38441908

RESUMEN

BACKGROUND AND AIMS: Alcohol relapse after surviving an episode of alcohol-associated hepatitis (AH) is common. However, the clinical features, risk factors, and prognostic implications of recurrent alcohol-associated hepatitis (RAH) are not well described. APPROACH AND RESULTS: A registry-based study was done of patients admitted to 28 Spanish hospitals for an episode of AH between 2014 and 2021. Baseline demographics and laboratory variables were collected. Risk factors for RAH were investigated using Cox regression analysis. We analyzed the severity of the index episodes of AH and compared it to that of RAH. Long-term survival was assessed by Kaplan-Meier curves and log-rank tests. A total of 1118 patients were included in the analysis, 125 (11%) of whom developed RAH during follow-up (median: 17 [7-36] months). The incidence of RAH in patients resuming alcohol use was 22%. The median time to recurrence was 14 (8-29) months. Patients with RAH had more psychiatric comorbidities. Risk factors for developing RAH included age <50 years, alcohol use >10 U/d, and history of liver decompensation. RAH was clinically more severe compared to the first AH (higher MELD, more frequent ACLF, and HE). Moreover, alcohol abstinence during follow-up was less common after RAH (18% vs. 45%, p <0.001). Most importantly, long-term mortality was higher in patients who developed RAH (39% vs. 21%, p = 0.026), and presenting with RAH independently predicted high mortality (HR: 1.55 [1.11-2.18]). CONCLUSIONS: RAH is common and has a more aggressive clinical course, including increased mortality. Patients surviving an episode of AH should undergo intense alcohol use disorder therapy to prevent RAH.

7.
Liver Int ; 44(1): 202-213, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37904633

RESUMEN

BACKGROUND AND AIMS: Diagnosis of metabolic dysfunction-associated steatohepatitis (MASH) requires histology. In this study, a magnetic resonance imaging (MRI) score was developed and validated to identify MASH in patients with metabolic dysfunction-associated steatotic liver disease (MASLD). Secondarily, a screening strategy for MASH diagnosis was investigated. METHODS: This prospective multicentre study included 317 patients with biopsy-proven MASLD and contemporaneous MRI. The discovery cohort (Spain, Portugal) included 194 patients. NAFLD activity score (NAS) and fibrosis were assessed with the NASH-CRN histologic system. MASH was defined by the presence of steatosis, lobular inflammation, and ballooning, with NAS ≥4 with or without fibrosis. An MRI-based composite biomarker of Proton Density Fat Fraction and waist circumference (MR-MASH score) was developed. Findings were afterwards validated in an independent cohort (United States, Spain) with different MRI protocols. RESULTS: In the derivation cohort, 51% (n = 99) had MASH. The MR-MASH score identified MASH with an AUC = .88 (95% CI .83-.93) and strongly correlated with NAS (r = .69). The MRI score lower cut-off corresponded to 88% sensitivity with 86% NPV, while the upper cut-off corresponded to 92% specificity with 87% PPV. MR-MASH was validated with an AUC = .86 (95% CI .77-.92), 91% sensitivity (lower cut-off) and 87% specificity (upper cut-off). A two-step screening strategy with sequential MR-MASH examination performed in patients with indeterminate-high FIB-4 or transient elastography showed an 83-84% PPV to identify MASH. The AUC of MR-MASH was significantly higher than that of the FAST score (p < .001). CONCLUSIONS: The MR-MASH score has clinical utility in the identification and management of patients with MASH at risk of progression.


Asunto(s)
Hígado , Enfermedad del Hígado Graso no Alcohólico , Humanos , Hígado/patología , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Estudios Prospectivos , Imagen por Resonancia Magnética , Fibrosis , Biopsia , Biomarcadores/metabolismo , Cirrosis Hepática/diagnóstico por imagen , Cirrosis Hepática/metabolismo
9.
Gastroenterol. hepatol. (Ed. impr.) ; 46(9): 671-681, nov. 2023. ilus, tab, graf
Artículo en Inglés | IBECS | ID: ibc-226944

RESUMEN

Background: Loss-of-response and adverse events (AE) to biologics have been linked to HLA-DQA1*05 allele. However, the clinical factors or biologic used may influence treatment duration. Our objective was to evaluate the influence of clinical and therapeutic factors, along with HLA, in biological treatment discontinuation. Methods: A retrospective study of consecutive IBD patients treated with biologics between 2007 and 2011 was performed. Main outcome was treatment discontinuation due to primary non-response (PNR), secondary loss of response (SLR) or AE. HLA-DQA1 genotyping was done in all patients. Regression analyses were used to assess risk factors of treatment discontinuation. Results: One hundred fifty patients (61% male) with 312 biologic treatments were included. 147 (47%) were discontinued with a cumulative probability of 30%, 41% and 56% at 1, 2 and 5 years. The use of infliximab (p=0.006) and articular manifestations (p<0.05) were associated with treatment discontinuation. Considering cause of withdrawal, Ulcerative Colitis (UC) had a higher proportion of PNR (HR=4.99; 95% CI=1.71–14.63; p=0.003), SLR was higher if biologics had been indicated due to disease flare (HR=2.32; 95% CI=1.05–5.09; p=0.037) while AE were greater with infliximab (HR=2.46; 95% CI=1.48–4.08; p<0.001) or spondylitis (HR=2.46; 95% CI=1.78–6.89; p<0.001). According to the biological drug, HLA-DQA1*05 with adalimumab showed more SLR in cases with Crohn's disease (HR=3.49; 95% CI=1.39–8,78; p=0.008) or without concomitant immunomodulator (HR=2.8; 95% CI=1.1–6.93; p=0.026). Conclusions: HLA-DQ A1*05 was relevant in SLR of IBD patients treated with adalimumab without immunosupression. In patients treated with other biologics, clinical factors were more important for treatment interruption, mainly extensive UC or extraintestinal manifestations and having indicated the biologic for flare. (AU)


Introducción: Estudios previos han observado una asociación entre el HLA-DQA1*05 y la pérdida de respuesta a biológicos y el desarrollo de efectos adversos (EA). Hay factores clínicos y biológicos que podrían influir en la duración del tratamiento. El objetivo del estudio fue evaluar la influencia del HLA, de factores clínicos y terapéuticos en la interrupción del tratamiento biológico. Métodos: Se realizó un estudio retrospectivo de pacientes con enfermedad inflamatoria intestinal (EII) tratados con biológicos entre 2007 y 2011. Los principales eventos analizados fueron la suspensión del tratamiento por fallo de respuesta primaria (PRP), secundaria (PRS) o EA. Se realizó un tipaje del HLA-DQA1*05 y se evaluaron los factores de riesgo de interrupción del tratamiento mediante un análisis de regresión logística. Resultados: Se incluyeron 150 pacientes y 312 tratamientos, de los cuales se suspendieron 147 (47%) en el seguimiento. El infliximab (p=0,006) y las manifestaciones articulares (p<0,05) se relacionaron con la interrupción del tratamiento. La colitis ulcerosa (CU) presentó mayor PRP (HR: 4,99; IC 95%: 1,71-14,63; p=0,003), el brote como indicación de tratamiento se asoció a más PRS (HR: 2,32; IC 95%: 1,05-5,09; p=0,037); el uso de infliximab (HR: 2,46; IC 95%: 1,48-4,08; p<0,001) y la espondilitis (HR: 2,46; IC 95%: 1,78-6,89; p<0,001) a la suspensión por EA. El HLA-DQA1*05 fue un factor de riesgo de PRS en los pacientes tratados con adalimumab (ADA) con enfermedad de Crohn (HR: 3,49; IC 95%: 1,39-8,78; p=0,008) o con EII sin inmunosupresor asociado (HR: 2,8; IC 95%: 1,1-6,93; p=0,026). Conclusiones: El HLA-DQA1*05 se asoció al cese del tratamiento con ADA por PRS en los pacientes con EII sin inmunosupresor asociado. Respecto a otros biológicos, la suspensión se debió más a factores como la CU, las manifestaciones articulares y la indicación para remisión de brote intestinal. (AU)


Asunto(s)
Humanos , Productos Biológicos/uso terapéutico , Colitis Ulcerosa/genética , Colitis Ulcerosa/tratamiento farmacológico , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Estudios Retrospectivos , Factores Biológicos/uso terapéutico , Adalimumab/efectos adversos , Infliximab/efectos adversos
11.
Front Endocrinol (Lausanne) ; 14: 1213441, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37600695

RESUMEN

Objective: To assess the prevalence of pancreatic steatosis and iron overload in non-alcoholic fatty liver disease (NAFLD) and their correlation with liver histology severity and the risk of cardiometabolic diseases. Method: A prospective, multicenter study including NAFLD patients with biopsy and paired Magnetic Resonance Imaging (MRI) was performed. Liver biopsies were evaluated according to NASH Clinical Research Network, hepatic iron storages were scored, and digital pathology quantified the tissue proportionate areas of fat and iron. MRI-biomarkers of fat fraction (PDFF) and iron accumulation (R2*) were obtained from the liver and pancreas. Different metabolic traits were evaluated, cardiovascular disease (CVD) risk was estimated with the atherosclerotic CVD score, and the severity of iron metabolism alteration was determined by grading metabolic hiperferritinemia (MHF). Associations between CVD, histology and MRI were investigated. Results: In total, 324 patients were included. MRI-determined pancreatic iron overload and moderate-to severe steatosis were present in 45% and 25%, respectively. Liver and pancreatic MRI-biomarkers showed a weak correlation (r=0.32 for PDFF, r=0.17 for R2*). Pancreatic PDFF increased with hepatic histologic steatosis grades and NASH diagnosis (p<0.001). Prevalence of pancreatic steatosis and iron overload increased with the number of metabolic traits (p<0.001). Liver R2* significantly correlated with MHF (AUC=0.77 [0.72-0.82]). MRI-determined pancreatic steatosis (OR=3.15 [1.63-6.09]), and iron overload (OR=2.39 [1.32-4.37]) were independently associated with high-risk CVD. Histologic diagnosis of NASH and advanced fibrosis were also associated with high-risk CVD. Conclusion: Pancreatic steatosis and iron overload could be of utility in clinical decision-making and prognostication of NAFLD.


Asunto(s)
Enfermedades Cardiovasculares , Sobrecarga de Hierro , Trastornos del Metabolismo de los Lípidos , Enfermedad del Hígado Graso no Alcohólico , Enfermedades Pancreáticas , Humanos , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Estudios Prospectivos , Factores de Riesgo , Enfermedades Pancreáticas/complicaciones , Enfermedades Pancreáticas/diagnóstico por imagen , Sobrecarga de Hierro/complicaciones , Hierro , Factores de Riesgo de Enfermedad Cardiaca
12.
EClinicalMedicine ; 61: 102046, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37415844

RESUMEN

Background: The prevalence and impact of alcohol withdrawal syndrome (AWS) in patients with alcohol-associated hepatitis (AH) are unknown. In this study, we aimed to investigate the prevalence, predictors, management, and clinical impact of AWS in patients hospitalized with AH. Methods: A multinational, retrospective cohort study enrolling patients hospitalized with AH at 5 medical centres in Spain and in the USA was performed between January 1st, 2016 to January 31st, 2021. Data were retrospectively retrieved from electronic health records. Diagnosis of AWS was based on clinical criteria and use of sedatives to control AWS symptoms. The primary outcome was mortality. Multivariable models controlling for demographic variables and disease severity were performed to determine predictors of AWS (adjusted odds ratio [OR]) and the impact of AWS condition and management on clinical outcomes (adjusted hazard ratio [HR]). Findings: In total, 432 patients were included. The median MELD score at admission was 21.9 (18.3-27.3). The overall prevalence of AWS was 32%. Lower platelet levels (OR = 1.61, 95% CI 1.05-2.48) and previous history of AWS (OR = 2.09, 95% CI 1.31-3.33) were associated with a higher rate of incident AWS, whereas the use of prophylaxis decreased the risk (OR = 0.58, 95% CI 0.36-0.93). The use of intravenous benzodiazepines (HR = 2.18, 95% CI 1.02-4.64) and phenobarbital (HR = 2.99, 95% CI 1.07-8.37) for AWS treatment were independently associated with a higher mortality. The development of AWS increased the rate of infections (OR = 2.24, 95% CI 1.44-3.49), the need for mechanical ventilation (OR = 2.49, 95% CI 1.38-4.49), and ICU admission (OR = 1.96, 95% CI 1.19-3.23). Finally, AWS was associated with higher 28-day (HR = 2.31, 95% CI 1.40-3.82), 90-day (HR = 1.78, 95% CI 1.18-2.69), and 180-day mortality (HR = 1.54, 95% CI 1.06-2.24). Interpretation: AWS commonly occurs in patients hospitalized with AH and complicates the hospitalization course. Routine prophylaxis is associated with a lower prevalence of AWS. Prospective studies should determine diagnostic criteria and prophylaxis regimens for AWS management in patients with AH. Funding: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

13.
Obes Surg ; 33(5): 1494-1505, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36881347

RESUMEN

BACKGROUND/AIMS: Bariatric surgery can increase the risk of addictive disorders and nutritional deficiencies. The aim of this study was to evaluate the association between bariatric surgery and alcohol use disorder (AUD), alcohol-related liver disease (ALD), and psychiatric disorders associated with AUD. The impact of vitamin D deficiency in these associations was also investigated. METHODS: A cross-sectional study was performed using the National Inpatient Sample database and its ICD-9 codes information. Diagnostic and comorbidity data from hospital discharges were obtained from patients with bariatric surgery and other abdominal surgeries between 2005 and 2015. The two groups were then compared for alcohol-related outcomes after propensity-score matching. RESULTS: The final study cohort included 537,757 patients with bariatric surgery and 537,757 with other abdominal surgeries. The bariatric surgery group had an increased risk of AUD [odds ratio (OR): 1.90; 95% CI: 1.85-1.95], ALD [OR: 1.29; 95% CI: 1.22-1.37], cirrhosis [OR, 1.39; 95% CI: 1.37-1.42], and psychiatric disorders associated with AUD [OR, 3.59; 95% CI: 3.37-3.84]. Vitamin D deficiency did not impact in the association between bariatric surgery and AUD, ALD, or psychiatric disorders associated with AUD. CONCLUSIONS: Bariatric surgery is associated with an increased prevalence of AUD, ALD, and psychiatric disorders associated with AUD. These associations appear to be independent from vitamin D deficiency.


Asunto(s)
Alcoholismo , Cirugía Bariátrica , Hepatopatías , Trastornos Mentales , Obesidad Mórbida , Deficiencia de Vitamina D , Humanos , Alcoholismo/complicaciones , Alcoholismo/epidemiología , Estudios Transversales , Obesidad Mórbida/cirugía , Trastornos Mentales/etiología , Trastornos Mentales/complicaciones , Cirugía Bariátrica/efectos adversos , Deficiencia de Vitamina D/complicaciones , Deficiencia de Vitamina D/epidemiología , Hepatopatías/complicaciones
14.
Gastroenterol Hepatol ; 46(9): 671-681, 2023 Nov.
Artículo en Inglés, Español | MEDLINE | ID: mdl-36375696

RESUMEN

BACKGROUND: Loss-of-response and adverse events (AE) to biologics have been linked to HLA-DQA1*05 allele. However, the clinical factors or biologic used may influence treatment duration. Our objective was to evaluate the influence of clinical and therapeutic factors, along with HLA, in biological treatment discontinuation. METHODS: A retrospective study of consecutive IBD patients treated with biologics between 2007 and 2011 was performed. Main outcome was treatment discontinuation due to primary non-response (PNR), secondary loss of response (SLR) or AE. HLA-DQA1 genotyping was done in all patients. Regression analyses were used to assess risk factors of treatment discontinuation. RESULTS: One hundred fifty patients (61% male) with 312 biologic treatments were included. 147 (47%) were discontinued with a cumulative probability of 30%, 41% and 56% at 1, 2 and 5 years. The use of infliximab (p=0.006) and articular manifestations (p<0.05) were associated with treatment discontinuation. Considering cause of withdrawal, Ulcerative Colitis (UC) had a higher proportion of PNR (HR=4.99; 95% CI=1.71-14.63; p=0.003), SLR was higher if biologics had been indicated due to disease flare (HR=2.32; 95% CI=1.05-5.09; p=0.037) while AE were greater with infliximab (HR=2.46; 95% CI=1.48-4.08; p<0.001) or spondylitis (HR=2.46; 95% CI=1.78-6.89; p<0.001). According to the biological drug, HLA-DQA1*05 with adalimumab showed more SLR in cases with Crohn's disease (HR=3.49; 95% CI=1.39-8,78; p=0.008) or without concomitant immunomodulator (HR=2.8; 95% CI=1.1-6.93; p=0.026). CONCLUSIONS: HLA-DQ A1*05 was relevant in SLR of IBD patients treated with adalimumab without immunosupression. In patients treated with other biologics, clinical factors were more important for treatment interruption, mainly extensive UC or extraintestinal manifestations and having indicated the biologic for flare.


Asunto(s)
Productos Biológicos , Colitis Ulcerosa , Enfermedades Inflamatorias del Intestino , Humanos , Masculino , Femenino , Infliximab/efectos adversos , Adalimumab/efectos adversos , Estudios Retrospectivos , Motivación , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Colitis Ulcerosa/tratamiento farmacológico , Colitis Ulcerosa/genética , Factores Biológicos/uso terapéutico , Productos Biológicos/uso terapéutico
15.
Clin Mol Hepatol ; 29(1): 1-15, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-35430784

RESUMEN

Alcohol-related liver disease (ALD) consists of a wide spectrum of clinical manifestations and pathological features, ranging from asymptomatic patients to decompensated cirrhosis and hepatocellular carcinoma. Patients with heavy alcohol intake and advanced fibrosis often develop a subacute form of liver failure called alcohol-induced hepatitis (AH). Globally, most patients with ALD are identified at late stages of the disease, limiting therapeutic interventions. Thus, there is a need for early detection of ALD patients, which is lacking in most countries. The identification of alcohol misuse is hampered by the existence of alcohol underreporting by many patients. There are useful biomarkers that can detect recent alcohol use. Moreover, there are several non-invasive techniques to assess the presence of advanced fibrosis among patients with alcohol misuse, which could identify patients at high risk of liver related events or early death. In this review, we discuss differences between early stages of ALD and AH as the cornerstone of advanced forms. A global overview of epidemiological, anthropometric, clinical, analytical, histological, and molecular differences is summarized in this article. We propose that campaigns aimed at identifying patients with subclinical forms can prevent the development of life-threatening forms.


Asunto(s)
Alcoholismo , Hepatitis Alcohólica , Hepatopatías Alcohólicas , Neoplasias Hepáticas , Humanos , Hepatopatías Alcohólicas/patología , Hepatitis Alcohólica/tratamiento farmacológico , Fibrosis
16.
J Hepatol ; 77(1): 191-205, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35131406

RESUMEN

Cigarette smoking is a preventable risk factor for premature morbidity and mortality. A history of smoking is observed in approximately 40% of patients with liver disease, while a growing number of studies are investigating the potential impact of smoking in chronic liver diseases. This review discusses the effects of smoking on liver diseases, at multiple levels, with a focus on its potential causal role. Clinical evidence indicates that cigarette smoking negatively impacts the incidence and severity of fatty liver disease, fibrosis progression, hepatocellular carcinoma development, and the outcomes of patients with advanced liver disease. The underlying mechanisms are complex and involve different pathophysiological pathways including oxidative stress and oncogenic signals. Importantly, smoking promotes cardiovascular disease and extrahepatic cancers in patients with steatohepatitis and in transplant recipients. We discuss how promoting smoking cessation could improve the rates of treatment response (in clinical trials) and fibrosis regression, while reducing the risk of hepatocellular carcinoma and improving liver transplant outcomes. Finally, we discuss current challenges such as the referral of smokers to specialised units for smoking cessation.


Asunto(s)
Carcinoma Hepatocelular , Enfermedades Cardiovasculares , Fumar Cigarrillos , Neoplasias Hepáticas , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/etiología , Carcinoma Hepatocelular/prevención & control , Fumar Cigarrillos/efectos adversos , Fumar Cigarrillos/epidemiología , Fibrosis , Humanos , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/etiología , Neoplasias Hepáticas/prevención & control , Factores de Riesgo , Fumar/efectos adversos
17.
Rev. esp. enferm. dig ; 114(2): 76-82, febrero 2022. tab, graf
Artículo en Inglés | IBECS | ID: ibc-205547

RESUMEN

Introduction: thiopurines are used as maintenance therapy in patients with ulcerative colitis (UC). There are contradictory results regarding the relationship between adherence to treatment and risk of relapse.Objectives: to quantify and evaluate the trends in thiopurine prescription rates, and to determine the impact and risk factors of non-adherence.Methods: analytical, observational, retrospective study of UC patients taking thiopurines included in the ENEIDA single-center registry from October 2017 to October 2019. Adult patients in clinical remission at the beginning of the study on thiopurines maintenance treatment for at least 6 months before recruitment were included. Adherence was evaluated with an electronic pharmaceutical prescription system. Adherence was considered when 80 % or more of the prescribed medication was dispensed at the pharmacy. Kaplan-Meier curves and a regression model were used to examine year-to-year treatment dispensation, and to identify factors associated with non-adherence.Results: a total of 41 patients were included, of whom 71 % were males with a mean age of 44 (14), and 26.8 % were concomitantly managed with biological therapy. Overall, 22 % were non-adherent to thiopurines. No predictive factors of non-adherence were identified. Adherence rate did not correlate with disease activity during two years of follow-up (OR 1.6; 95 % CI = 0.3-9.1). Left-sided colitis and concomitant biological treatment were related with disease relapse (p ≤ 0.01).Conclusion: adherence to thiopurines in UC patients is high (78 %). Non-adherence is not related to clinical or pharmacological factors. Adherence rate was not associated with disease activity. (AU)


Asunto(s)
Humanos , Azatioprina/efectos adversos , Azatioprina/uso terapéutico , Colitis Ulcerosa/inducido químicamente , Colitis Ulcerosa/tratamiento farmacológico , Mercaptopurina/efectos adversos , Mercaptopurina/uso terapéutico , Estudios Retrospectivos
18.
Rev Esp Enferm Dig ; 114(2): 76-82, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33733802

RESUMEN

INTRODUCTION: thiopurines are used as maintenance therapy in patients with ulcerative colitis (UC). There are contradictory results regarding the relationship between adherence to treatment and risk of relapse. OBJECTIVES: to quantify and evaluate the trends in thiopurine prescription rates, and to determine the impact and risk factors of non-adherence. METHODS: analytical, observational, retrospective study of UC patients taking thiopurines included in the ENEIDA single-center registry from October 2017 to October 2019. Adult patients in clinical remission at the beginning of the study on thiopurines maintenance treatment for at least 6 months before recruitment were included. Adherence was evaluated with an electronic pharmaceutical prescription system. Adherence was considered when 80 % or more of the prescribed medication was dispensed at the pharmacy. Kaplan-Meier curves and a regression model were used to examine year-to-year treatment dispensation, and to identify factors associated with non-adherence. RESULTS: a total of 41 patients were included, of whom 71 % were males with a mean age of 44 (14), and 26.8 % were concomitantly managed with biological therapy. Overall, 22 % were non-adherent to thiopurines. No predictive factors of non-adherence were identified. Adherence rate did not correlate with disease activity during two years of follow-up (OR 1.6; 95 % CI = 0.3-9.1). Left-sided colitis and concomitant biological treatment were related with disease relapse (p ≤ 0.01). CONCLUSION: adherence to thiopurines in UC patients is high (78 %). Non-adherence is not related to clinical or pharmacological factors. Adherence rate was not associated with disease activity.


Asunto(s)
Colitis Ulcerosa , Adulto , Azatioprina/efectos adversos , Azatioprina/uso terapéutico , Colitis Ulcerosa/inducido químicamente , Colitis Ulcerosa/tratamiento farmacológico , Femenino , Humanos , Masculino , Mercaptopurina/efectos adversos , Mercaptopurina/uso terapéutico , Prevalencia , Recurrencia , Estudios Retrospectivos
19.
Radiology ; 302(2): 345-354, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34783592

RESUMEN

Background Standardized manual region of interest (ROI) sampling strategies for hepatic MRI steatosis and iron quantification are time consuming, with variable results. Purpose To evaluate the performance of automatic MRI whole-liver segmentation (WLS) for proton density fat fraction (PDFF) and iron estimation (transverse relaxometry [R2*]) versus manual ROI, with liver biopsy as the reference standard. Materials and Methods This prospective, cross-sectional, multicenter study recruited participants with chronic liver disease who underwent liver biopsy and chemical shift-encoded 3.0-T MRI between January 2017 and January 2021. Biopsy evaluation included histologic grading and digital pathology. MRI liver sampling strategies included manual ROI (two observers) and automatic whole-liver (deep learning algorithm) segmentation for PDFF- and R2*-derived measurements. Agreements between segmentation methods were measured using intraclass correlation coefficients (ICCs), and biases were evaluated using Bland-Altman analyses. Linear regression analyses were performed to determine the correlation between measurements and digital pathology. Results A total of 165 participants were included (mean age ± standard deviation, 55 years ± 12; 96 women; 101 of 165 participants [61%] with nonalcoholic fatty liver disease). Agreements between mean measurements were excellent, with ICCs of 0.98 for both PDFF and R2*. The median bias was 0.5% (interquartile range, -0.4% to 1.2%) for PDFF and 2.7 sec-1 (interquartile range, 0.2-5.3 sec-1) for R2* (P < .001 for both). Margins of error were lower for WLS than ROI-derived parameters (-0.03% for PDFF and -0.3 sec-1 for R2*). ROI and WLS showed similar performance for steatosis (ROI AUC, 0.96; WLS AUC, 0.97; P = .53) and iron overload (ROI AUC, 0.85; WLS AUC, 0.83; P = .09). Correlations with digital pathology were high (P < .001) between the fat ratio and PDFF (ROI r = 0.89; WLS r = 0.90) and moderate (P < .001) between the iron ratio and R2* (ROI r = 0.65; WLS r = 0.64). Conclusion Proton density fat fraction and transverse relaxometry measurements derived from MRI automatic whole-liver segmentation (WLS) were accurate for steatosis and iron grading in chronic liver disease and correlated with digital pathology. Automated WLS estimations were higher, with a lower margin of error than manual region of interest estimations. © RSNA, 2021 Online supplemental material is available for this article. See also the editorial by Moura Cunha and Fowler in this issue.


Asunto(s)
Aprendizaje Profundo , Sobrecarga de Hierro/diagnóstico por imagen , Imagen por Resonancia Magnética/métodos , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Biopsia , Enfermedad Crónica , Estudios Transversales , Femenino , Humanos , Sobrecarga de Hierro/patología , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/patología , Estudios Prospectivos
20.
Biomolecules ; 11(12)2021 12 02.
Artículo en Inglés | MEDLINE | ID: mdl-34944452

RESUMEN

Traditional histological evaluation for grading liver disease severity is based on subjective and semi-quantitative scores. We examined the relationship between digital pathology analysis and corresponding scoring systems for the assessment of hepatic necroinflammatory activity. A prospective, multicenter study including 156 patients with chronic liver disease (74% nonalcoholic fatty liver disease-NAFLD, 26% chronic hepatitis-CH etiologies) was performed. Inflammation was graded according to the Nonalcoholic Steatohepatitis (NASH) Clinical Research Network system and METAVIR score. Whole-slide digital image analysis based on quantitative (I-score: inflammation ratio) and morphometric (C-score: proportionate area of staining intensities clusters) measurements were independently performed. Our data show that I-scores and C-scores increase with inflammation grades (p < 0.001). High correlation was seen for CH (ρ = 0.85-0.88), but only moderate for NAFLD (ρ = 0.5-0.53). I-score (p = 0.008) and C-score (p = 0.002) were higher for CH than NAFLD. Our MATLAB algorithm performed better than QuPath software for the diagnosis of low-moderate inflammation (p < 0.05). C-score AUC for classifying NASH was 0.75 (95%CI, 0.65-0.84) and for moderate/severe CH was 0.99 (95%CI, 0.97-1.00). Digital pathology measurements increased with fibrosis stages (p < 0.001). In conclusion, quantitative and morphometric metrics of inflammatory burden obtained by digital pathology correlate well with pathologists' scores, showing a higher accuracy for the evaluation of CH than NAFLD.


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Fibrosis , Humanos , Hígado , Cirrosis Hepática , Masculino , Persona de Mediana Edad
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