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1.
J Clin Immunol ; 42(6): 1330-1341, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35699824

RESUMEN

PURPOSE: A recent phase II open-label study of the interleukin 1 (IL-1) receptor antagonist (IL-1Ra) anakinra in treating IVIG-resistant Kawasaki disease (KD) patients reported promising results. Here, we aimed to characterize the immunological impact of IL-1 blockade in this unique study population. METHODS: Patients' and control sera and supernatants of cells (whole blood, neutrophils, coronary artery endothelial cells) stimulated with recombinant IL-1ß were analyzed for single or multiple marker (n = 22) expression by ELISA or multiplexed bead array assay. Data were analyzed using unsupervised hierarchical clustering, multiple correlation, and multi-comparison statistics and were compared to retrospective analyses of KD transcriptomics. RESULTS: Inflammation in IVIG-resistant KD (n = 16) is hallmarked by over-expression of innate immune mediators (particularly IL-6 > CXCL10 > S100A12 > IL-1Ra). Those as well as levels of immune or endothelial cell activation markers (sICAM-1, sVCAM-1) declined most significantly in course of anakinra treatment. Prior as well as following IL-1R blockade, over-expression of leucine-rich-α2-glycoprotein 1 (LRG1) associated best with remnant inflammatory activity and the necessity to escalate anakinra dosage and separated inflammatory KD patients from sJIA-MAS (n = 13) and MIS-C (n = 4). Protein as well as retrospective gene expression analyses indicated tight association of LRG1 with IL-1ß signaling and neutrophilia, while particularly neutrophil stimulation with recombinant IL-1ß resulted in concentration-dependent LRG1 release. CONCLUSION: Our study identifies LRG1 as known trigger of endothelial activation and cardiac re-modeling to associate with IL-1ß signaling in KD. Besides a potential patho-mechanistic implication of these findings, our data suggest blood leukocyte and neutrophil counts to best predict response to IL-1Ra treatment in IVIG-resistant KD.


Asunto(s)
Síndrome Mucocutáneo Linfonodular , Biomarcadores , Niño , Células Endoteliales/metabolismo , Glicoproteínas/metabolismo , Glicoproteínas/uso terapéutico , Humanos , Inmunoglobulinas Intravenosas/uso terapéutico , Proteína Antagonista del Receptor de Interleucina 1/uso terapéutico , Interleucina-1beta , Interleucina-6/metabolismo , Leucina/uso terapéutico , Síndrome Mucocutáneo Linfonodular/complicaciones , Síndrome Mucocutáneo Linfonodular/tratamiento farmacológico , Estudios Retrospectivos , Proteína S100A12
2.
J Hepatol ; 74(6): 1325-1334, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33503489

RESUMEN

BACKGROUND & AIMS: In acute severe autoimmune hepatitis (AS-AIH), the optimal timing for liver transplantation (LT) remains controversial. The objectives of this study were to determine early predictive factors for a non-response to corticosteroids and to propose a score to identify patients in whom LT is urgently indicated. METHODS: This was a retrospective, multicenter study (2009-2016). A diagnosis of AS-AIH was based on: i) Definite or probable AIH based on the simplified IAIHG score; ii) international normalized ratio (INR) ≥1.5 and/or bilirubin >200 µmol/L; iii) No previous history of AIH; iv) Histologically proven AIH. A treatment response was defined as LT-free survival at 90 days. The evolution of variables from corticosteroid initiation (day-D0) to D3 was estimated from: Δ%3 = (D3-D0)/D0. RESULTS: A total of 128 patients were included, with a median age of 52 (39-62) years; 72% were female. Overall survival reached 88%. One hundred and fifteen (90%) patients received corticosteroids, with a LT-free survival rate of 66% at 90 days. Under multivariate analysis, D0-INR (odds ratio [OR] 6.85; 95% CI 2.23-21.06; p <0.001), Δ%3-INR ≥0.1% (OR 6.97; 95% CI 1.59-30.46; p <0.01) and Δ%3-bilirubin ≥-8% (OR 5.14; 95% CI 1.09-24.28; p <0.04) were predictive of a non-response. The SURFASA score: -6.80+1.92∗(D0-INR)+1.94∗(Δ%3-INR)+1.64∗(Δ%3-bilirubin), created by combining these variables, was highly predictive of LT or death (AUC = 0.93) (88% specificity; 84% sensitivity) with a cut-off point of <-0.9. Below this cut-off, the chance of responding was 75%. With a score higher than 1.75, the risk of dying or being transplanted was between 85% and 100%. CONCLUSION: In patients with AS-AIH, INR at the introduction of corticosteroids and the evolution of INR and bilirubin are predictive of LT or death. Within 3 days of initiating corticosteroids, the SURFASA score can identify non-responders who require a referral for LT. This score needs to be validated in a prospective cohort. LAY SUMMARY: The management of patients with acute severe autoimmune hepatitis is highly challenging, particularly regarding their early referral for liver transplantation. We found that international normalized ratio at the initiation of corticosteroid therapy and the evolution of international normalized ratio and bilirubin values after 3 days of therapy were highly predictive of liver transplantation or death. We are thus proposing a score that combines these variables and identifies patients in whom liver transplantation is urgently required.


Asunto(s)
Corticoesteroides/uso terapéutico , Bilirrubina/sangre , Hepatitis Autoinmune/tratamiento farmacológico , Hepatitis Autoinmune/mortalidad , Relación Normalizada Internacional/métodos , Fallo Hepático Agudo/tratamiento farmacológico , Fallo Hepático Agudo/mortalidad , Trasplante de Hígado/métodos , Índice de Severidad de la Enfermedad , Enfermedad Aguda , Adulto , Anciano , Femenino , Estudios de Seguimiento , Hepatitis Autoinmune/sangre , Hepatitis Autoinmune/cirugía , Humanos , Fallo Hepático Agudo/sangre , Fallo Hepático Agudo/cirugía , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Insuficiencia del Tratamiento
3.
AJR Am J Roentgenol ; 216(6): 1530-1538, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33881897

RESUMEN

OBJECTIVE. The purpose of this multicenter retrospective study was to assess the MRCP features of Caroli disease (CD). MATERIALS AND METHODS. Sixty-six patients were identified from 2000 to 2019. The inclusion criteria were diagnosis of diffuse or localized CD mentioned in an imaging report, presence of intrahepatic bile duct (IHBD) dilatation, and having undergone an MRCP examination. The exclusion criteria included presence of obstructive proximal biliary stricture and having undergone hepatobiliary surgery other than cholecystectomy. Histopathology records were available for 53 of the 66 (80%) patients. Diffuse and localized diseases were compared by chi-square and t tests and Kaplan-Meier model. RESULTS. Forty-five patients had diffuse bilobar CD ((five pediatric patients [three girls and two boys] with a mean [± SD] age of 8 ± 5 years [range, 1-15 years] and 40 adult patients [26 men and 14 women] with a mean age of 35 ± 11 years [range, 20-62 years]) and 21 patients had localized disease (12 men and 9 women; mean age, 54 ± 14 years). Congenital hepatic fibrosis was found only in patients with diffuse CD (35/45 [78%]), as was a "central dot" sign (15/35 [43%]). IHBD dilatation with both saccular and fusiform features was found in 43 (96%) and the peripheral "funnel-shaped" sign in 41 (91%) of the 45 patients with diffuse CD but in none of the patients with localized disease (p < .001). Intrahepatic biliary calculi were found in all patients with localized disease but in only 16 of the 45 (36%) patients with diffuse CD (p < .001). Left liver atrophy was found in 18 of the 21 (86%) patients with localized disease and in none of the patients with diffuse CD (p < .001). The overall survival rate among patients with diffuse CD was significantly lower than that among patients with localized disease (p = .03). CONCLUSION. Diffuse IHBD dilatation with both saccular and fusiform features associated with the peripheral funnel-shaped sign can be used for the diagnosis of CD on MRCP. Localized IHBD dilatation seems to be mainly related to primary intrahepatic lithiasis.


Asunto(s)
Enfermedad de Caroli/diagnóstico por imagen , Pancreatocolangiografía por Resonancia Magnética/métodos , Adolescente , Conductos Biliares Intrahepáticos/diagnóstico por imagen , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Estudios Retrospectivos , Tasa de Supervivencia
4.
Genet Med ; 20(11): 1346-1353, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-29493578

RESUMEN

PURPOSE: Cell-free DNA (cfDNA) as a primary screening test has been available for years but few studies have addressed this option in a prospective manner. The question is of interest after reports that maternal serum screening (MSS) is less accurate for pregnancies resulting from assisted reproduction technologies (ART) than for spontaneous pregnancies (SP). METHODS: A prospective interventional study was designed to address the performances of cfDNA compared with MSS in pregnancies with or without ART. Each patient was offered both MSS and cfDNA testing. The primary analysis cohort ultimately included 794 patients with a spontaneous pregnancy (SP) (n = 472) or pregnancy obtained after ART (n = 322). RESULTS: Overall, the false-positive rate and positive predictive value were 6.6% and 8.8% for MSS but 0% and 100% for cfDNA. MSS false-positive rate and positive predictive values were clearly poorer in the ART group (11.7% and 2.6%) than in the SP group (3.2% and 21.1%). The global rates of invasive procedures were 1.9% (15/794) with cfDNA but 8.4% (65/794) if MSS alone was proposed. CONCLUSION: cfDNA achieved better performance than MSS in both spontaneous and ART pregnancies, thus decreasing the number of invasive procedures. Our findings suggest that cfDNA should be considered for primary screening, especially in pregnancies obtained after ART.


Asunto(s)
Ácidos Nucleicos Libres de Células/sangre , Síndrome de Down/sangre , Pruebas Genéticas , Diagnóstico Prenatal/métodos , Adulto , Ácidos Nucleicos Libres de Células/genética , Síndrome de Down/genética , Síndrome de Down/patología , Femenino , Feto , Humanos , Edad Materna , Embarazo , Primer Trimestre del Embarazo , Técnicas Reproductivas Asistidas
5.
Liver Int ; 37(11): 1697-1705, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28387018

RESUMEN

BACKGROUND & AIMS: The reliability of transient elastography (TE) to assess liver fibrosis is insufficiently validated in alcoholic liver disease (ALD). We aimed to validate the diagnostic utility of TE for liver fibrosis in patients with excessive alcohol consumption and evaluate whether Fibrotest® adds diagnostic value relative to or in combination with TE. METHODS: We conducted a multicentre prospective study on a total of 217 heavy drinkers with high serum aminotransferase levels. Patients underwent liver biopsy, TE, Fibrotest® , PGAA, APRI, FIB-4 and FORNS. The overall diagnostic performance was evaluated by the area under the receiver operating characteristic (AUROC) curves and Obuchowski measures. RESULTS: TE values correlated with fibrosis stage (r=.73; P<.0001) and steatosis stage (r=.19; P<.01). Patients with alcoholic hepatitis had higher TE values than those without alcoholic hepatitis (P<.0001). In an multivariate analysis, fibrosis stage and the presence of alcoholic hepatitis were the only parameters that correlated with liver stiffness. For the diagnosis of advanced fibrosis (F≥3), the AUROC curves were 0.90, 0.85, 0.83, 0.91 and 0.90 for TE, Fibrotest® , PGAA and associations TE-Fibrotest® , TE-PGAA respectively. For the diagnosis of cirrhosis, the AUROC curves were 0.93, 0.88, 0.89, 0.94 and 0.95 respectively. The Obuchowski measures for the diagnosis of fibrosis were 0.94, 0.92, 0.91, 0.95 and 0.94 respectively. The performance of TE was not significantly different than those of Fibrotest® , PGAA and combinations TE-Fibrotest® , TE-PGAA. CONCLUSIONS: TE has excellent diagnostic value for liver fibrosis in alcoholic liver disease. The combined use of TE-Fibrotest® or TE-PGAA does not improve the performance of TE.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Cirrosis Hepática Alcohólica/diagnóstico por imagen , Cirrosis Hepática Alcohólica/patología , Adulto , Área Bajo la Curva , Femenino , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estudios Prospectivos , Curva ROC , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad , Adulto Joven
6.
Ann Rheum Dis ; 75(6): 958-64, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26698843

RESUMEN

BACKGROUND: We aimed to describe the main features of Behçet's disease (BD) in children in the largest prospective cohort to date and to propose a classification. METHODS: An international expert consensus group was formed to define a data set of minimal symptoms for the inclusion of patients. Patients were entered prospectively during 66 months. Experts classified patients on a consensus basis. The concordance of two international classifications was analysed in confirmed patients with BD. Comparisons of subgroups of patients helped define consensus criteria. BD-associated clinical manifestations were also investigated in three control diseases extracted from an independent data set (Eurofever). FINDINGS: In total, 42 centres from 12 countries included 230 patients; data for 219 (M/F ratio=1) could be analysed. The experts classified 156 patients (71.2%) as having confirmed BD. Males more often than females showed cutaneous, ocular and vascular symptoms and females more often genital aphthosis. Age at disease onset and skin and vascular involvement were lower for European than non-European children. Oral aphthosis was the presenting sign for 81% (179/219) of patients. The mean delay to the second symptom was 2.9±2.2 years. International classifications were not concordant with the expert classification. Our paediatric classification contains six categories, a minimum of three signs (each in a distinct category) defining paediatric BD. Three clinical signs discriminated our cohort from the Eurofever cohorts. INTERPRETATION: We present a comprehensive description of a large cohort of patients from both European and non-European countries and propose the first classification of paediatric BD for future therapeutic trials.


Asunto(s)
Síndrome de Behçet/clasificación , Consenso , Evaluación de Síntomas/clasificación , Adolescente , Edad de Inicio , Síndrome de Behçet/diagnóstico , Niño , Femenino , Humanos , Masculino , Estudios Prospectivos
7.
Eur J Nucl Med Mol Imaging ; 43(5): 852-859, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26577938

RESUMEN

PURPOSE: In this prospective study, our goal was to emphasize the diagnostic value of combining (11)C-choline and (18)F-FDG PET/CT for hepatocellular carcinoma (HCC) in patients with chronic liver disease. METHODS: Thirty-three consecutive patients were enrolled. All patients were suspected to have HCC based on CT and/or MRI imaging. A final diagnosis was obtained by histopathological examination or by imaging alone according to American Association for the Study of Liver Disease criteria. All patients underwent PET/CT with both tracers within a median of 5 days. All lesions showing higher tracer uptake than normal liver were considered positive for HCC. We examined how tracer uptake was related to biological (serum α-fetoprotein levels) and pathological (differentiation status, peritumoral capsule and vascular invasion) prognostic markers of HCC, as well as clinical observations at 6 months (recurrence and death). RESULTS: Twenty-eight HCC, four cholangiocarcinomas and one adenoma were diagnosed. In the HCC patients, the sensitivity of (11)C-choline, (18)F-FDG and combined (11)C-choline and (18)F-FDG PET/CT for the detection of HCC was 75 %, 36 % and 93 %, respectively. Serum α-fetoprotein levels >200 ng/ml were more frequent among patients with (18)F-FDG-positive lesions than those with (18)F-FDG-negative lesions (p < 0.05). Early recurrence (n=2) or early death (n=5) occurred more frequently in patients with (18)F-FDG-positive lesions than in those with (18)F-FDG-negative lesions (p < 0.05). CONCLUSION: The combined use of (11)C-choline and (18)F-FDG PET/CT detected HCC with high sensitivity. This approach appears to be of potential prognostic value and may facilitate the selection of patients for surgical resection or liver transplantation.


Asunto(s)
Carcinoma Hepatocelular/diagnóstico por imagen , Fluorodesoxiglucosa F18/administración & dosificación , Neoplasias Hepáticas/diagnóstico por imagen , Tomografía Computarizada por Tomografía de Emisión de Positrones , Radiofármacos/administración & dosificación , Anciano , Anciano de 80 o más Años , Radioisótopos de Carbono/administración & dosificación , Colina/administración & dosificación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas
8.
Liver Int ; 35(3): 967-78, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24766056

RESUMEN

BACKGROUND & AIMS: Patients with alcoholic liver disease (ALD) display inflammation of the subcutaneous adipose tissue (SAT) which correlates with liver lesions. We examined macrophage markers and polarization in the SAT of alcoholic patients and adipokine expression according to liver inflammation; we studied the consequences of alcohol withdrawal. PATIENTS AND METHODS: Forty-seven patients with ALD were prospectively included. SAT and blood samples were collected at inclusion and after 1 week of alcohol withdrawal. Pro-inflammatory cytokines/chemokines, inflammasome components and products, adipokine expression levels, macrophage markers and polarization in liver and SAT samples were assessed by RT-PCR arrays. RESULTS: mRNA expression level of chemokines (IL8, semaphorin 7A) correlated with hepatic steatosis in both liver and SAT. Liver expression of inflammasome components (IL1ß, IL18, caspase-1) and SAT IL6 and CCL2 correlated with liver damage. In patients with mild ALD, 1 week of alcohol withdrawal was sufficient to decrease expression level of total macrophage markers in the adipose tissue, to orient adipose tissue macrophages (ATM) towards an anti-inflammatory M2 phenotype and to decrease the mRNA expression of cytokines/chemokines (IL18, CCL2, osteopontin, semaphorin 7A). In patients with severe ALD, 1 week of abstinence was also associated with an increase in CCL18 expression. CONCLUSIONS: In alcoholic patients, upregulation of chemotactic factors in the liver and SAT is an early event that begins as early as the steatosis stage. The inflammasome pathway is upregulated in the liver of patients with ALD. One week of alcohol withdrawal alleviates macrophage infiltration in SAT and orients ATM towards a M2 anti-inflammatory phenotype; this implicates alcohol in adipose tissue inflammation (ClinicalTrials.gov NCT00388323).


Asunto(s)
Adipoquinas/metabolismo , Citocinas/metabolismo , Hepatopatías Alcohólicas/terapia , Macrófagos/metabolismo , Paniculitis/terapia , Tejido Adiposo/metabolismo , Adulto , Abstinencia de Alcohol , Biomarcadores/metabolismo , Femenino , Humanos , Hígado/inmunología , Hígado/metabolismo , Hígado/patología , Hepatopatías Alcohólicas/etiología , Hepatopatías Alcohólicas/patología , Masculino , Persona de Mediana Edad , Paniculitis/complicaciones , Estudios Prospectivos
9.
BMC Cancer ; 14: 980, 2014 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-25523036

RESUMEN

BACKGROUND: Malnutrition is an independent risk factor of postoperative morbidity and mortality and it's observed in 20 to 50% of surgical patients. Preoperative interventions to optimize the nutritional status, reduce postoperative complications and enteral nutrition has proven to be superior to the parenteral one. Moreover, regardless of the nutritional status of the patient, surgery impairs the immunological response, thus increasing the risk of postoperative sepsis. Immunonutrition has been developed to improve the immunometabolic host response in perioperative period and it has been proven to reduce significantly postoperative infectious complications and length of hospital stay in patients undergoing elective gastrointestinal surgery for tumors. We hypothesize that a preoperative oral immunonutrition (ORAL IMPACT®) can reduce postoperative morbidity in liver resection for cancer. METHODS/DESIGN: Prospective multicenter randomized placebo-controlled double-blind phase IV trial with two parallel treatment groups receiving either study product (ORAL IMPACT®) or control supplement (isocaloric isonitrogenous supplement--IMPACT CONTROL®) for 7 days before liver resection for cancer. A total of 400 patients will be enrolled. Patients will be stratified according to the type of hepatectomy, the presence of chronic liver disease and the investigator center. The main end-point is to evaluate in intention-to-treat analysis the overall 30-day morbidity. Secondary end-points are to assess the 30-day infectious and non-infectious morbidity, length of antibiotic treatment and hospital stay, modifications on total food intake, compliance to treatment, side-effects of immunonutrition, impact on liver regeneration and sarcopenia, and to perform a medico-economic analysis. DISCUSSION: The overall morbidity rate after liver resection is 22% to 42%. Infectious post-operative complications (12% to 23%) increase the length of hospital stay and costs and are responsible for a quarter of 30-day mortality. Various methods have been advocated to decrease the rate of postoperative complications but there is no evidence to support or refute the use of any treatment and further trials are required. The effects of preoperative oral immunonutrition in non-cirrhotic patients undergoing liver resection for cancer are unknown. The present trial is designed to evaluate whether the administration of a short-term preoperative oral immunonutrition can reduce postoperative morbidity in non-cirrhotic patients undergoing liver resection for cancer. TRIAL REGISTRATION: Clinicaltrial.gov: NCT02041871.


Asunto(s)
Suplementos Dietéticos , Nutrición Enteral/métodos , Hepatectomía/efectos adversos , Neoplasias Hepáticas/cirugía , Cuidados Preoperatorios , Infección de la Herida Quirúrgica/inmunología , Antibacterianos/uso terapéutico , Suplementos Dietéticos/economía , Método Doble Ciego , Ingestión de Alimentos , Nutrición Enteral/efectos adversos , Humanos , Inmunocompetencia , Análisis de Intención de Tratar , Tiempo de Internación , Regeneración Hepática , Estado Nutricional , Cooperación del Paciente , Cuidados Preoperatorios/economía , Estudios Prospectivos , Proyectos de Investigación , Sarcopenia/inmunología , Infección de la Herida Quirúrgica/prevención & control
11.
Eur J Endocrinol ; 189(2): 199-207, 2023 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-37549351

RESUMEN

BACKGROUND: Acromegaly is associated with an increased left ventricular (LV) mass, as reported in echo-based and, more recently, in a few cardiac magnetic resonance imaging (MRI) studies. One possible explanation for this increased LV mass could be water retention and subsequent myocardial edema. METHODS: In this prospective cross-sectional study, 26 patients with active acromegaly before and after treatment and 31 controls of comparable age and sex were investigated using cardiac MRI. Cardiac morphology, function, and myocardial tissue characteristics were evaluated. Myocardial T2 relaxation time was used as the main outcome measure of myocardial edema. The study was registered with clinicaltrials.gov (NCT02948322). RESULTS: Patients compared to controls had greater LV mass indexes (58.1 [54.7-68.6] vs 46.0 [41.3-49.8] g/m2; P < .001) and end-diastolic volume (EDV) indexes (97.3 [88-101.2] vs 81.6 [78.1-96.2] mL/m2; P = .0069) and had comparable global contractile function. T2 values were not different between patients and controls. Both intracellular (43.83 [41.0-50.0] vs 34.32 [28.9-38.7] g/m2; P < .001) and extracellular (15.06 [13.5-17.1] vs 11.6 [10.8-12.7] g/m2; P < .001) LV mass indexes were higher in patients compared to controls. Log growth hormone correlated with myocardial mass (r = 0.75; P < .001). Sex, systolic blood pressure (BP), and the presence of acromegaly were predictors of the LV mass index. The extracellular LV mass index was associated with sex and the presence of acromegaly, whereas the intracellular LV mass index was associated with sex, systolic BP, and high-density lipoprotein (HDL) cholesterol. Acromegaly treatment reduced EDV and total and intracellular LV mass indexes without significantly affecting extracellular mass. CONCLUSION: Acromegaly results in a disease-specific form of LV hypertrophic remodeling, characterized by an increase in both intra- and extracellular mass. The LV mass index and intracellular mass were decreased by treatment.


Asunto(s)
Acromegalia , Disfunción Ventricular Izquierda , Humanos , Acromegalia/complicaciones , Acromegalia/diagnóstico por imagen , Estudios Transversales , Estudios Prospectivos , Imagen por Resonancia Magnética , Edema/complicaciones , Disfunción Ventricular Izquierda/complicaciones
12.
Pathogens ; 12(2)2023 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-36839604

RESUMEN

BACKGROUND: Medical treatment of inflammatory bowel disease (IBD) has evolved significantly, and treatment with immunomodulators is recommended. These medications may alter the patient's immune response and increase the risk of opportunistic infections. Our aim was to evaluate the prevalence and the incidence of acute or chronic HEV infection in IBD patients under immunomodulatory treatment. PATIENTS AND METHODS: We conducted a retrospective, multicenter, observational study between 2017 and 2018. IBD outpatients hospitalized for the infusion of immunomodulators were included in 16 French centers. During their daily hospitalization, blood samples were drawn for HEV serology (IgM and IgG) and HEV RNA detection. RESULTS: A total of 488 patients were included, of which 327 (67%) patients had Crohn's disease and 161 (33%) ulcerative colitis. HEV IgM was detected in 3 patients, but HEV RNA was undetectable in all patients. The HEV IgG seroprevalence rate was 14.2%. IgG-positive patients were older at sampling (p = 0.01) and IBD diagnosis (p = 0.03), had higher seafood consumption (p = 0.01) and higher doses of azathioprine (p = 0.03). Ileal and upper digestive tract involvement was more frequent in IgG-positive patients (p = 0.009), and ileocolic involvement was more frequent in IgG-negative patients (p = 0.01). Under multivariate analysis, age > 50 years [OR: 2.21 (1.26, to 3.85), p = 0.004] was associated with previous HEV infection. CONCLUSION: Systematic screening for HEV infection is not needed among IBD patients on immunomodulatory medications. However, in the event of abnormal liver test findings, HEV should be part of the classic diagnostic assessment.

13.
Alcohol Clin Exp Res ; 36(2): 258-66, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21913943

RESUMEN

BACKGROUND: Quantification of gene expression using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) requires normalization to an endogenous reference gene termed housekeeping gene (HKG). Many of the commonly used HKGs are regulated and vary under experimental conditions and disease stages. Alcoholic liver disease (ALD) is associated with several different liver histological lesions that may modulate HKG expression. We investigated the variability of commonly used HGKs (18S, ß-actin, glyceraldehyde-3-phosphate [GAPDH], and arginine/serine-rich splicing factor [SFRS4]) in the liver of patients with ALD. METHODS: Fifty consecutive patients at different stages of ALD underwent liver biopsy. The stability of HKG was assessed according to liver histological lesions. RESULTS: ß-actin had the highest coefficient of dispersion (COD) (23.9). ß-actin tended to decrease with steatosis and to increase with alcoholic hepatitis; ß-actin also increased in patients with both alcoholic hepatitis and cirrhosis. GAPDH and SFRS4 COD were 2.8 and 2.1, respectively. GAPDH was decreased with steatosis and increased with alcoholic hepatitis and fibrosis. 18S had the lowest COD (1.4). Both 18S and SFRS4 levels were not significantly modified with respect to all alcohol-induced liver histological lesions. CONCLUSIONS: In patients with ALD, the most constantly expressed HKGs are 18S and SFRS4. These genes are appropriate reference genes for normalization of RT-qPCR in the liver of patients with ALD. The use of other HKGs such as ß-actin or GAPDH would lead to misinterpretation of the results.


Asunto(s)
Alcoholismo/genética , Alcoholismo/metabolismo , Genes Esenciales/genética , Hígado/metabolismo , Actinas/genética , Alcoholismo/patología , Biopsia , Hígado Graso Alcohólico/genética , Hígado Graso Alcohólico/patología , Femenino , Variación Genética , Gliceraldehído-3-Fosfato Deshidrogenasas/genética , Humanos , Hígado/patología , Cirrosis Hepática/genética , Cirrosis Hepática/patología , Cirrosis Hepática Alcohólica/genética , Cirrosis Hepática Alcohólica/patología , Hepatopatías Alcohólicas/enzimología , Hepatopatías Alcohólicas/genética , Hepatopatías Alcohólicas/patología , Masculino , Persona de Mediana Edad , ARN/biosíntesis , ARN/genética , ARN/aislamiento & purificación , ARN Ribosómico 18S/genética , Proteínas de Unión al ARN/genética , Reacción en Cadena en Tiempo Real de la Polimerasa , Factores de Empalme Serina-Arginina
14.
Abdom Radiol (NY) ; 47(6): 2115-2127, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35419748

RESUMEN

PURPOSE: Evaluation of perfusion CT and dual-energy CT (DECT) quantitative parameters for predicting microvascular invasion (MVI) of hepatocellular carcinoma (HCC) prior to surgery. METHODS: This prospective single-center study included fifty-six patients (44 men; median age 67; range 31-84) who provided written informed consent. Inclusion criteria were (1) treatment-naïve patients with a diagnosis of HCC, (2) an indication for hepatic resection, and (3) available arterial DECT phase and perfusion CT (GE revolution HD-GSI). Iodine concentrations (IC), arterial density (AD), and 9 quantitative perfusion parameters for HCC were correlated to pathological results. Radiological parameters based principal component analysis (PCA), corroborated by unsupervised heatmap classification, was meant to deliver a model for predicting MVI in HCC. Survival analysis was performed using univariable log-rank test and multivariable Cox model, both censored at time of relapse. RESULTS: 58 HCC lesions were analyzed (median size 42.3 mm; range of 20-140). PCA showed that the radiological model was predictive of tumor grade (p = 0.01), intratumoral MVI (p = 0.004), peritumoral MVI (p = 0.04), MTM (macrotrabecular-massive) subtype (p = 0.02), and capsular invasion (p = 0.02) in HCC. Heatmap classification of HCC showed tumor heterogeneity, stratified into three main clusters according to the risk of relapse. Survival analysis confirmed that permeability surface-area product (PS) was the only significant independent parameter, among all quantitative tumoral CT parameters, for predicting a risk of relapse (Cox p value = 0.004). CONCLUSION: A perfusion CT and DECT-based quantitative imaging profile can provide a diagnosis of histological MVI in HCC. PS is an independent parameter for relapse. CLINICAL TRIALS: ClinicalTrials.gov: NCT03754192.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma Hepatocelular/patología , Humanos , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Recurrencia Local de Neoplasia , Perfusión , Estudios Prospectivos , Estudios Retrospectivos , Tomografía Computarizada por Rayos X/métodos
15.
Trials ; 22(1): 806, 2021 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-34781991

RESUMEN

BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) has become an increasing bariatric procedure. The basic principle is to create a narrow stomach along the lesser curvature, using a calibration bougie as a template to perform a vertical partial gastrectomy, resecting the greater curvature and fundus of the stomach. The most common postoperative complication is gastric leak from the staple line, observed in approximately 3% of cases, which can result in long and incapacitating treatment. The diametre of the bougie used to calibrate the remnant stomach could impact the rate of postoperative gastric leak, a higher diametre being correlated with a lower risk of leak, without lowering long-term weight loss. This is the first randomized trial to compare the outcomes of LSG regarding the use of two different bougie diametres on postoperative gastric leak and mid-term weight loss. METHODS: Bougie Sleeve Trial (BOUST) is a superiority single-blinded randomized national trial, involving 17 centres. Participants will be randomized into two groups. LSG will be performed using a 48-Fr diametre calibration bougie in the experimental group and a standard care (34 to 38-Fr diametre) calibration bougie in the control group. Both groups will take part in a 2-year postoperative follow-up to assess postoperative gastric leak rate and weight loss and quality of life evolution. DISCUSSION: This study protocol will allow the investigators to determine if the use of a larger calibration bougie during LSG is associated with lower postoperative gastric leak occurrence without impairing mid-term weight loss and quality of life. The results of this trial will provide important data on patient safety and promote best practice for LSG procedures. TRIAL REGISTRATION: ClinicalTrials.gov NCT02937649 . Registered on 18 October 2016.


Asunto(s)
Laparoscopía , Obesidad Mórbida , Calibración , Gastrectomía/efectos adversos , Humanos , Laparoscopía/efectos adversos , Estudios Multicéntricos como Asunto , Obesidad Mórbida/diagnóstico , Obesidad Mórbida/cirugía , Complicaciones Posoperatorias/etiología , Estudios Prospectivos , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Grapado Quirúrgico/efectos adversos
16.
Arthritis Rheumatol ; 73(1): 151-161, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32779863

RESUMEN

OBJECTIVE: Anakinra has been shown to be successful in preventing and treating cardiovascular lesions both in experimental murine models of Kawasaki disease (KD) and in several studies on intravenous immunoglobulin (IVIG)- and steroid-resistant patients with KD. This study was undertaken to determine the safety of blocking interleukin-1 in patients with IVIG-resistant KD. METHODS: Sixteen patients were included in the present study. Patients with KD who were not responsive to 1 or more courses of 2 mg/kg of IVIG received anakinra by subcutaneous daily injections. Starting doses were 2 mg/kg of IVIG (4 mg/kg in patients who were age <8 months and who weighed ≥5 kilograms), and the dose was increased up to 6 mg/kg every 24 hours if the patient's body temperature remained >38°C, indicative of a fever. Treatment duration was 14 days. The last visit was on day 45. Primary outcome was abatement of fever. Secondary measures included disease activity, coronary artery Z score, and C-reactive protein (CRP) levels. RESULTS: Seventy-five percent of patients in the intention-to-treat group and 87.5% in the per-protocol group became afebrile within 48 hours of the last escalation dose of anakinra. Reduction of disease activity by 50% was indicated on 93.3% (95% confidence interval [95% CI] 68.1-99.8%) of physician evaluations and on 100% (95% CI 73.5-100%) of parent evaluations. CRP values normalized by day 30. At the initial screening, 12 of 16 patients had a maximum coronary artery Z score of >2, and 10 of 16 patients had a maximum Z score of >2.5. At day 45, 5 of 10 patients (50% [95% CI 18.7-81.3%]) and 6 of 12 patients (50% [95% CI 21.1-78.9%]) had achieved coronary artery Z scores of <2.5 and <2, respectively. Five serious adverse events were observed in 3 patients, but no serious infections or deaths occurred. CONCLUSION: Anakinra was well tolerated in the study patients and may have some efficacy in reducing fever, markers of systemic inflammation, and coronary artery dilatation in individuals with IVIG-refractory KD.


Asunto(s)
Antirreumáticos/uso terapéutico , Proteína Antagonista del Receptor de Interleucina 1/uso terapéutico , Síndrome Mucocutáneo Linfonodular/tratamiento farmacológico , Proteína C-Reactiva/inmunología , Niño , Preescolar , Aneurisma Coronario/diagnóstico por imagen , Ecocardiografía , Femenino , Fiebre , Humanos , Inmunoglobulinas Intravenosas/uso terapéutico , Factores Inmunológicos/uso terapéutico , Lactante , Masculino , Síndrome Mucocutáneo Linfonodular/diagnóstico por imagen , Síndrome Mucocutáneo Linfonodular/inmunología , Síndrome Mucocutáneo Linfonodular/fisiopatología , Prueba de Estudio Conceptual , Insuficiencia del Tratamiento , Resultado del Tratamiento
17.
J Clin Endocrinol Metab ; 106(12): 3505-3514, 2021 11 19.
Artículo en Inglés | MEDLINE | ID: mdl-34333603

RESUMEN

CONTEXT: Cardiovascular disease is the leading cause of death in patients with Cushing syndrome. Cortisol excess and adverse metabolic profile could increase cardiac fat, which can subsequently impair cardiac structure and function. OBJECTIVE: We aimed to evaluate cardiac fat mass and distribution in patients with Cushing syndrome. METHODS: In this prospective, cross-sectional study, 23 patients with Cushing syndrome and 27 control individuals of comparable age, sex, and body mass index were investigated by cardiac magnetic resonance imaging and proton spectroscopy. Patients were explored before and after biochemical disease remission. Myocardial fat measured by the Dixon method was the main outcome measure. The intramyocardial triglyceride/water ratio measured by spectroscopy and epicardial and pericardial fat volumes were secondary outcome measures. RESULTS: No difference was found between patients and controls in intramyocardial lipid content. Epicardial fat mass was increased in patients compared to controls (30.8 g/m2 [20.4-34.8] vs 17.2 g/m2 [13.1-23.5], P < .001). Similarly, pericardial fat mass was increased in patients compared to controls (28.3 g/m2 [17.9-38.0] vs 11.4 g/m2 [7.5-19.4], P = .003). Sex, glycated hemoglobin A1c, and the presence of hypercortisolism were independent determinants of epicardial fat. Pericardial fat was associated with sex, impaired glucose homeostasis and left ventricular wall thickness. Disease remission decreased epicardial fat mass without affecting pericardial fat. CONCLUSION: Intramyocardial fat stores are not increased in patients with Cushing syndrome, despite highly prevalent metabolic syndrome, suggesting increased cortisol-mediated lipid consumption. Cushing syndrome is associated with marked accumulation of epicardial and pericardial fat. Epicardial adiposity may exert paracrine proinflammatory effects promoting cardiomyopathy.


Asunto(s)
Adiposidad , Índice de Masa Corporal , Cardiomiopatías/patología , Síndrome de Cushing/fisiopatología , Grasa Intraabdominal/patología , Miocardio/patología , Pericardio/patología , Adulto , Biomarcadores/análisis , Glucemia/análisis , Cardiomiopatías/epidemiología , Estudios de Casos y Controles , Estudios Transversales , Femenino , Estudios de Seguimiento , Hemoglobina Glucada/análisis , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos
18.
J Hepatol ; 52(6): 895-902, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20399524

RESUMEN

BACKGROUND & AIMS: Adipose tissue is an important source of cytokines. Excess weight is an independent risk factor for steatosis, acute alcoholic hepatitis (AAH), and cirrhosis in patients with alcoholic liver disease (ALD). In this study, we investigated the role of adipose tissue in human ALD. PATIENTS AND METHODS: Fifty patients with ALD underwent liver and abdominal subcutaneous adipose tissue biopsies and supplied blood samples for the investigation of cytokine gene expression and secretion, as well as liver histology. RESULTS: The levels of TNF-alpha and IL-10 in adipose tissue were higher in patients with AAH. IL-10 level in adipose tissue was also correlated with fibrosis score. TNF-alpha gene expression in adipose tissue was correlated with Maddrey score, blood C-reactive protein (CRP) concentration and liver IL-6 concentration. IL-6 production levels in the liver were higher in patients with AAH and correlated with AAH score, liver histological lesions, liver TNF-alpha concentration, Maddrey score, and blood CRP concentration. Plasma concentrations of soluble forms of TNF-receptor were correlated with inflammatory lesions in the liver, Maddrey score and fibrosis score. CONCLUSION: In patients with ALD, inflammation occurs not only in the liver, but also in the adipose tissue. Adipose tissue inflammation is correlated with the severity of pathological features in the liver. Our findings may account for the harmful interactions between body mass index, AAH, fibrosis, and cirrhosis in alcoholic patients.


Asunto(s)
Hígado Graso Alcohólico/patología , Hepatitis/patología , Grasa Intraabdominal/patología , Hígado/patología , Grasa Subcutánea/patología , Biopsia , Índice de Masa Corporal , Proteína C-Reactiva/metabolismo , Hígado Graso Alcohólico/epidemiología , Hígado Graso Alcohólico/inmunología , Femenino , Expresión Génica/inmunología , Hepatitis/epidemiología , Hepatitis/inmunología , Humanos , Inflamación/epidemiología , Inflamación/inmunología , Inflamación/patología , Interleucina-10/sangre , Interleucina-10/genética , Interleucina-6/sangre , Interleucina-6/genética , Grasa Intraabdominal/inmunología , Grasa Intraabdominal/metabolismo , Hígado/inmunología , Cirrosis Hepática/epidemiología , Cirrosis Hepática/inmunología , Cirrosis Hepática/patología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad , Grasa Subcutánea/inmunología , Grasa Subcutánea/metabolismo , Factor de Necrosis Tumoral alfa/sangre , Factor de Necrosis Tumoral alfa/genética
19.
Hepatology ; 49(1): 97-105, 2009 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19053048

RESUMEN

FibroTest has been validated as a biomarker of fibrosis in patients with chronic viral hepatitis, with a similar prognostic value as biopsy. The aim of the study was to compare the diagnostic and prognostic values of FibroTest versus the recently patented biomarkers, FibrometerA, and Hepascore. A total of 218 consecutive patients with ALD and available liver biopsy examination were included. Biomarkers were compared using univariate area under the ROC curves (AUROC) and multivariate analysis (logistic regression and Cox). The median follow-up was 8.2 years. Eighty-five patients died, including 42 deaths related to liver complications. The diagnostic values of FibrometerA and Hepascore did not differ from that of FibroTest for advanced fibrosis (all AUROC = 0.83 +/- 0.03) and cirrhosis (FibroTest and FibrometerA = 0.94 +/- 0.02, Hepascore = 0.92 +/- 0.02), and were significantly greater than those of nonpatented biomarkers (APRI, Forns, FIB4; P < 0.01). In multivariate analysis the most significant was FibroTest (P = 0.001), without independent diagnostic value for FibrometerA (P = 0.19), and Hepascore (P = 0.40). The prognostic values of FibroTest (AUROC for survival or non liver disease-related death = 0.79 +/- 0.04), FibrometerA (0.80 +/- 0.04), Hepascore (0.78 +/- 0.04), did not differ from that of biopsy fibrosis staging (0.77 +/- 0.04). In multivariate analysis the most significant were FibroTest (P = 0.004) and biopsy (P = 0.03), without independent prognostic values for FibrometerA (P = 0.41) and Hepascore (P = 0.28). In patients with alcoholic liver disease, FibrometerA and Hepascore did not improve the diagnostic and prognostic values of FibroTest.


Asunto(s)
Biomarcadores/análisis , Cirrosis Hepática/diagnóstico , Hepatopatías Alcohólicas/diagnóstico , Hígado/patología , Pronóstico , Juego de Reactivos para Diagnóstico , Biopsia , Femenino , Humanos , Estimación de Kaplan-Meier , Cirrosis Hepática/sangre , Cirrosis Hepática/mortalidad , Cirrosis Hepática/patología , Hepatopatías Alcohólicas/mortalidad , Pruebas de Función Hepática , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Curva ROC , Estudios Retrospectivos
20.
Surg Endosc ; 24(5): 1170-6, 2010 May.
Artículo en Inglés | MEDLINE | ID: mdl-19915908

RESUMEN

BACKGROUND: Only a few series have demonstrated the safety of laparoscopic resection for hepatocellular carcinoma (HCC) and the benefits of this approach. Moreover, these studies reported mostly minor and nonanatomic hepatic resections. This report describes the results of a pair-matched comparative study between open and laparoscopic liver resections for HCC in a series of essentially anatomic resections. METHODS: Patients were retrospectively matched in pairs for the following criteria: sex, age, American Society of Anesthesiology (ASA) score, severity of liver disease, tumor size, and type of resection. A total of 42 patients undergoing laparoscopy were compared with patients undergoing laparotomy during the same period. Surgeons from the authors' department not trained in laparoscopy performed open resections. Operative, postoperative, and oncologic outcomes were compared. RESULTS: The mean duration of surgery was similar in the two groups. Significantly less bleeding was observed in the laparoscopic group (364.3 vs. 723.7 ml; p < 0.0001). Transfusion was required for four patients (9.5%) in the laparoscopic group and seven patients (16.7%) in the open surgery group (p = 0.51). Postoperative ascites was less frequent after laparoscopic resections (7.1 vs. 26.1%; p = 0.03). General morbidity was similar in the two groups (9.5 vs. 11.9%; p = 1.00). The mean hospital stay was significantly shorter for the patients undergoing laparoscopy (6.7 vs. 9.6 days; p < 0.0001). The surgical margin and local recurrence adjacent to the liver stump were not affected by laparoscopy. The overall postoperative survival rates in the laparoscopic group were 93.1% at 1 year, 74.4% at 3 years, and 59.5% at 5 years and, respectively, 81.8, 73, and 47.4% in the open surgery group (p = 0.25). The postoperative disease-free survival rates in the laparoscopic group were at 81.6% at 1 year, 60.9% at 3 years, and 45.6% at 5 years, respectively, 70.2, 54.3, and 37.2% in the open surgery group (p = 0.29). CONCLUSIONS: Laparoscopic resection of HCC for selected patients gave a better postoperative outcome without oncologic consequences. Prospective trials are required to confirm these results.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Hepatectomía/métodos , Laparoscopía , Neoplasias Hepáticas/cirugía , Anciano , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Francia/epidemiología , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
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