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1.
Cell Commun Signal ; 22(1): 319, 2024 Jun 10.
Artículo en Inglés | MEDLINE | ID: mdl-38858728

RESUMEN

Several different signaling pathways that regulate cell proliferation and differentiation are initiated by binding of ligands to cell-surface and membrane-bound enzyme-linked receptors, such as receptor tyrosine kinases and serine-threonine kinases. They prompt phosphorylation of tyrosine and serine-threonine residues and initiate downstream signaling pathways and priming of intracellular molecules that convey the signal in the cytoplasm and nucleus, with transcriptional activation of specific genes enriching cell growth and survival-related cascades. These cell processes are rhythmically driven by molecular clockworks endowed in every cell type and when deregulated play a crucial role in cancer onset and progression. Growth factors and their matching receptor-dependent signaling are frequently overexpressed and/or dysregulated in many cancer types. In this review we focus on the interplay between biological clocks and Growth Factor Receptor-dependent signaling in the context of carcinogenesis.


Asunto(s)
Carcinogénesis , Transducción de Señal , Humanos , Carcinogénesis/metabolismo , Carcinogénesis/genética , Carcinogénesis/patología , Animales , Receptores de Factores de Crecimiento/metabolismo , Ritmo Circadiano/genética , Ritmo Circadiano/fisiología , Neoplasias/metabolismo , Neoplasias/patología , Neoplasias/genética
2.
Int J Mol Sci ; 25(7)2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38612861

RESUMEN

Alzheimer's disease (AD), the most common neurodegenerative disease (NDD), is characterized by chronic neuronal cell death through progressive loss of cognitive function. Amyloid beta (Aß) deposition, neuroinflammation, oxidative stress, and hyperphosphorylated tau proteins are considered the hallmarks of AD pathology. Different therapeutic approaches approved by the Food and Drug Administration can only target a single altered pathway instead of various mechanisms that are involved in AD pathology, resulting in limited symptomatic relief and almost no effect in slowing down the disease progression. Growing evidence on modulating the components of the endocannabinoid system (ECS) proclaimed their neuroprotective effects by reducing neurochemical alterations and preventing cellular dysfunction. Recent studies on AD mouse models have reported that the inhibitors of the fatty acid amide hydrolase (FAAH) and monoacylglycerol (MAGL), hydrolytic enzymes for N-arachidonoyl ethanolamine (AEA) and 2-arachidonoylglycerol (2-AG), respectively, might be promising candidates as therapeutical intervention. The FAAH and MAGL inhibitors alone or in combination seem to produce neuroprotection by reversing cognitive deficits along with Aß-induced neuroinflammation, oxidative responses, and neuronal death, delaying AD progression. Their exact signaling mechanisms need to be elucidated for understanding the brain intrinsic repair mechanism. The aim of this review was to shed light on physiology and pathophysiology of AD and to summarize the experimental data on neuroprotective roles of FAAH and MAGL inhibitors. In this review, we have also included CB1R and CB2R modulators with their diverse roles to modulate ECS mediated responses such as anti-nociceptive, anxiolytic, and anti-inflammatory actions in AD. Future research would provide the directions in understanding the molecular mechanisms and development of new therapeutic interventions for the treatment of AD.


Asunto(s)
Enfermedad de Alzheimer , Enfermedades Neurodegenerativas , Estados Unidos , Animales , Ratones , Enfermedad de Alzheimer/tratamiento farmacológico , Péptidos beta-Amiloides , Endocannabinoides , Enfermedades Neuroinflamatorias
3.
Microb Pathog ; 185: 106377, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37839760

RESUMEN

The prevalence of Blastocystis sp., its genetic diversity and the distribution of circulating subtypes (STs) were molecularly investigated in a cohort of autochthonous and immigrant patients with gastrointestinal symptoms hospitalized over the period February 2022-June 2023 at the Policlinico Ospedaliero-Universitario "Riuniti", Foggia, in Southern Italy. The population variables, including patient geographical origin, gender and age classes were reported. Out of the 927 investigated patients, 36 (3.9%) were positive for Blastocystis sp. A statistically significant association with African origin and age classes >18 years old was found. ST1 (allele 4), ST2 (alleles 9, 13), ST3 (alleles 34, 36) and ST4 (allele 92) were the subtypes detected with a different distribution between autochthonous and immigrant patients. Co-infections with enteric protozoa such as Giardia duodenalis and Dientamoeba fragilis, pathogenic bacteria as Clostridioides difficile, Campylobacter jejuni and Aeromonas sp. and viral infections such as Norovirus were found in 33% of cases. This is the first study of Blastocystis sp., its circulating subtypes and allele variability among patients with different geographical origin in an area of Southern Italy, in the Central Mediterranean, characterized by high immigrant pressure. These results provide baseline data to better investigate a potential interaction between Blastocystis sp. and other risk factors in patients with gastrointestinal symptoms.


Asunto(s)
Infecciones por Blastocystis , Blastocystis , Emigrantes e Inmigrantes , Humanos , Adolescente , Blastocystis/genética , Infecciones por Blastocystis/epidemiología , Infecciones por Blastocystis/parasitología , Prevalencia , Variación Genética , Italia/epidemiología , Heces/parasitología , Filogenia
4.
FASEB J ; 36(12): e22650, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36394523

RESUMEN

Hepatitis C virus (HCV) adopts several immune evasion mechanisms such as interfering with innate immunity or promoting T-cell exhaustion. However, the recent direct-antiviral agents (DAAs) rapidly eliminate the virus, and the repercussions in terms of immune system balance are unknown. Here we compared the PBMCs transcriptomic profile of patients with HCV chronic infection at baseline (T0) and 12 weeks after the end of the therapy (SVR12) with DAAs. 3862 genes were differently modulated, identifying oxidative phosphorylation as the top canonical pathway differentially activated. Therefore, we dissected PBMCs bioenergetic profile by analyzing mitochondrial respiration and glycolysis at 4 timepoints: T0, 4 weeks of therapy, end of therapy (EoT), and SVR12. Maximal and reserve respiratory capacity considerably increased at EoT, persisting until SVR12. Notably, over time a significant increase was observed in respiratory chain (RC) complexes protein levels and the enzymatic activity of complexes I, II, and IV. Mitochondrial-DNA integrity improved over time, and the expression of mitochondrial biogenesis key regulators such as TFAM, Nrf-1, and PPARGC1A significantly increased at SVR12; hence, RC complexes synthesis and mitochondrial respiration were supported after treatment. HCV clearance with DAAS profoundly changed PBMCs bioenergetic profile, suggesting the immunometabolism study as a new approach to the understanding of viral immune evasion mechanisms and host adaptations during infections and therapies.


Asunto(s)
Hepacivirus , Hepatitis C , Humanos , Antivirales/farmacología , Antivirales/uso terapéutico , Leucocitos Mononucleares , Hepatitis C/tratamiento farmacológico , Homeostasis , Mitocondrias
5.
Int J Mol Sci ; 24(17)2023 Aug 26.
Artículo en Inglés | MEDLINE | ID: mdl-37686069

RESUMEN

To the current data, there have been 6,955,141 COVID-19-related deaths worldwide, reported to WHO. Toll-like receptors (TLRs) implicated in bacterial and virus sensing could be a crosstalk between activation of persistent innate-immune inflammation, and macrophage's sub-population alterations, implicated in cytokine storm, macrophage over-activation syndrome, unresolved Acute Respiratory Disease Syndrome (ARDS), and death. The aim of this study is to demonstrate the association between Toll-like-receptor-4 (TLR-4)-induced inflammation and macrophage imbalance in the lung inflammatory infiltrate of lethal COVID-19 disease. Twenty-five cases of autopsy lung tissues were studied by digital pathology-based immunohistochemistry to evaluate expression levels of TLR-4 (CD 284), pan-macrophage marker CD68 (clone KP1), sub-population marker related to alveolar macrophage Galectin-3 (GAL-3) (clone 9C4), and myeloid derived CD163 (clone MRQ-26), respectively. SARS-CoV-2 viral persistence has been evaluated by in situ hybridation (ISH) method. This study showed TLR-4 up-regulation in a subgroup of patients, increased macrophage infiltration in both Spike-1(+) and Spike-1(-) lungs (p < 0.0001), and a macrophage shift with important down-regulation of GAL-3(+) alveolar macrophages associated with Spike-1 persistence (p < 0.05), in favor of CD163(+) myeloid derived monocyte-macrophages. Data show that TLR-4 expression induces a persistent activation of the inflammation, with inefficient resolution, and pathological macrophage shift, thus explaining one of the mechanisms of lethal COVID-19.


Asunto(s)
COVID-19 , Galectina 3 , Humanos , Receptor Toll-Like 4 , SARS-CoV-2 , Macrófagos
6.
Gut ; 71(3): 593-604, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-33741640

RESUMEN

OBJECTIVE: The benefit of direct-acting antivirals (DAAs) against HCV following successful treatment of hepatocellular carcinoma (HCC) remains controversial. This meta-analysis of individual patient data assessed HCC recurrence risk following DAA administration. DESIGN: We pooled the data of 977 consecutive patients from 21 studies of HCV-related cirrhosis and HCC, who achieved complete radiological response after surgical/locoregional treatments and received DAAs (DAA group). Recurrence or death risk was expressed as HCC recurrence or death per 100 person-years (100PY). Propensity score-matched patients from the ITA.LI.CA. cohort (n=328) served as DAA-unexposed controls (no-DAA group). Risk factors for HCC recurrence were identified using random-effects Poisson. RESULTS: Recurrence rate and death risk per 100PY in DAA-treated patients were 20 (95% CI 13.9 to 29.8, I2=74.6%) and 5.7 (2.5 to 15.3, I2=54.3), respectively. Predictive factors for recurrence were alpha-fetoprotein logarithm (relative risk (RR)=1.11, 95% CI 1.03 to 1.19; p=0.01, per 1 log of ng/mL), HCC recurrence history pre-DAA initiation (RR=1.11, 95% CI 1.07 to 1.16; p<0.001), performance status (2 vs 0, RR=4.35, 95% CI 1.54 to 11.11; 2 vs 1, RR=3.7, 95% CI 1.3 to 11.11; p=0.01) and tumour burden pre-HCC treatment (multifocal vs solitary nodule, RR=1.75, 95% CI 1.25 to 2.43; p<0.001). No significant difference was observed in RR between the DAA-exposed and DAA-unexposed groups in propensity score-matched patients (RR=0.64, 95% CI 0.37 to 1.1; p=0.1). CONCLUSION: Effects of DAA exposure on HCC recurrence risk remain inconclusive. Active clinical and radiological follow-up of patients with HCC after HCV eradication with DAA is justified.


Asunto(s)
Antivirales/uso terapéutico , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/terapia , Recurrencia Local de Neoplasia/epidemiología , Humanos , Recurrencia Local de Neoplasia/diagnóstico , Puntaje de Propensión
7.
Int J Clin Pract ; 75(4): e13733, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32981175

RESUMEN

BACKGROUND: Transcatheter Arterial chemoembolization (TACE) is the first-line option for the intermediate-stage hepatocellular carcinoma. Guidelines do not define the number of TACE sessions to be repeated before stopping treatment and switching to sorafenib. METHODS: We retrospectively analysed 76 patients aged ≥65 years who were treated by multiple TACE sessions (re-TACE group; N = 36 patients) or one TACE session followed by sorafenib (TACE/Sorafenib group; N = 40 patients). The primary outcome was the overall survival (Kaplan-Meier analysis and log-rank test). RESULTS: Median overall survival was 320 days (range: 70-420 days) in re-TACE subgroup and 285 days (range: 50-368 days) in TACE/Sorafenib subgroup without significant differences between the two groups (log-rank test P = .72; HR = 0.87; 95% IC 0.41-1.87). The survival rate at one year was 43.6% and 32% in the re-TACE and in the TACE/sorafenib groups (P = .12), respectively. Subgroup analysis by gender, number of nodules at baseline and etiology of liver cirrhosis was performed but no differences were found. No statistical difference was observed in the frequency of side effects, but sorafenib was associated with severe diarrhoea in most patients requiring dose reduction. CONCLUSION: In our study including HCC patients aged ≥65 years, no differences in survival rate and side effects were found between patients Retreated with further TACE sessions and patients with treatment stage migration to sorafenib after first TACE failure. We included in our analysis a small study population; therefore, larger prospective studies are needed to confirm these findings.


Asunto(s)
Antineoplásicos , Carcinoma Hepatocelular , Quimioembolización Terapéutica , Neoplasias Hepáticas , Anciano , Antineoplásicos/efectos adversos , Carcinoma Hepatocelular/tratamiento farmacológico , Quimioembolización Terapéutica/efectos adversos , Humanos , Neoplasias Hepáticas/tratamiento farmacológico , Niacinamida/uso terapéutico , Compuestos de Fenilurea/efectos adversos , Estudios Prospectivos , Retratamiento , Estudios Retrospectivos , Resultado del Tratamiento
8.
Int J Mol Sci ; 22(1)2021 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-33406763

RESUMEN

Non-alcoholic fatty liver disease (NAFLD) is considered the hepatic manifestation of metabolic syndrome and has become the major cause of chronic liver disease, especially in western countries. NAFLD encompasses a wide spectrum of hepatic histological alterations, from simple steatosis to steatohepatitis and cirrhosis with a potential development of hepatocellular carcinoma. Non-alcoholic steatohepatitis (NASH) is characterized by lobular inflammation and fibrosis. Several studies reported that insulin resistance, redox unbalance, inflammation, and lipid metabolism dysregulation are involved in NAFLD progression. However, the mechanisms beyond the evolution of simple steatosis to NASH are not clearly understood yet. Recent findings suggest that different oxidized products, such as lipids, cholesterol, aldehydes and other macromolecules could drive the inflammation onset. On the other hand, new evidence indicates innate and adaptive immunity activation as the driving force in establishing liver inflammation and fibrosis. In this review, we discuss how immunity, triggered by oxidative products and promoting in turn oxidative stress in a vicious cycle, fuels NAFLD progression. Furthermore, we explored the emerging importance of immune cell metabolism in determining inflammation, describing the potential application of trained immune discoveries in the NASH pathological context.


Asunto(s)
Inmunidad Celular/inmunología , Enfermedad del Hígado Graso no Alcohólico/inmunología , Enfermedad del Hígado Graso no Alcohólico/patología , Estrés Oxidativo , Animales , Progresión de la Enfermedad , Humanos
10.
Liver Int ; 40(2): 347-354, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31612634

RESUMEN

BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM) are closely associated, and liver fibrosis has been related to macrovascular complications. We examined whether liver fibrosis, diagnosed by FibroScan® , correlates with chronic vascular complications in a cohort of T2DM. METHODS: We recruited 394 outpatients with T2DM attending five Italian diabetes centres who underwent liver ultrasonography (US), FibroScan® and extensive evaluation of macrovascular and microvascular diabetic complications. RESULTS: Steatosis by US was present in 89%. Almost all patients (96%) were on hypoglycaemic drugs, 58% had at least one chronic vascular complication, 19% a macrovascular complication (prior myocardial infarction and/or ischaemic stroke) and 33% a microvascular one (26% chronic kidney disease [CKD]; 16% retinopathy; 6% neuropathy). In all, 171 (72%) patients had CAP ≥ 248dB/m (ie hepatic steatosis), whereas 83 (21%) patients had LSM ≥ 7.0/6.2 kPa (M/XL probes) (significant liver fibrosis). CAP was not associated with any macro/microvascular complications, whereas LSM ≥ 7.0/6.2 kPa was independently associated with prior cardiovascular disease (adjusted OR 3.3, 95%CI 1.2-8.8; P = .02) and presence of microvascular complications (adjusted OR 4.2, 95%CI 1.5-11.4; P = .005), mainly CKD (adjusted OR 3.6, 95%CI 1.3-10.1; P = .01) and retinopathy (adjusted OR 3.7, CI 95% 1.2-11.9; P = .02). Neither diabetes duration nor haemoglobin A1c differed according to CAP or LSM values. CONCLUSION: Significant fibrosis, detected by FibroScan® , is independently associated with increased prevalence of macrovascular and microvascular complications, thus opening a new scenario in the use of this tool for a comprehensive evaluation of hepatic and vascular complications in patients with T2DM.


Asunto(s)
Isquemia Encefálica , Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Diagnóstico por Imagen de Elasticidad , Enfermedad del Hígado Graso no Alcohólico , Accidente Cerebrovascular , Diabetes Mellitus Tipo 2/complicaciones , Factores de Riesgo de Enfermedad Cardiaca , Humanos , Cirrosis Hepática/diagnóstico por imagen , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Factores de Riesgo
11.
Int J Mol Sci ; 21(11)2020 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-32481481

RESUMEN

Iron deficiency (ID) is the most frequent nutritional deficiency in the whole population worldwide, and the second most common cause of anemia in the elderly. The prevalence of anemia is expecting to rise shortly, because of an ageing population. Even though WHO criteria define anemia as a hemoglobin serum concentration <12 g/dL in women and <13 g/dL in men, several authors propose different and specific cut-off values for the elderly. Anemia in aged subjects impacts health and quality of life, and it is associated with several negative outcomes, such as longer time of hospitalization and a higher risk of disability. Furthermore, it is an independent risk factor of increased morbidity and mortality. Even though iron deficiency anemia is a common disorder in older adults, it should be not considered as a normal ageing consequence, but a sign of underlying dysfunction. Relating to the molecular mechanism in Iron Deficiency Anemia (IDA), hepcidin has a key role in iron homeostasis. It downregulates the iron exporter ferroportin, inhibiting both iron absorption and release. IDA is frequently dependent on blood loss, especially caused by gastrointestinal lesions. Thus, a diagnostic algorithm for IDA should include invasive investigation such as endoscopic procedures. The treatment choice is influenced by the severity of anemia, underlying conditions, comorbidities, and the clinical state of the patient. Correction of anemia and iron supplementation should be associated with the treatment of the causal disease.


Asunto(s)
Anemia Ferropénica/etiología , Anemia Ferropénica/terapia , Hierro/administración & dosificación , Administración Oral , Anciano , Anciano de 80 o más Años , Envejecimiento , Algoritmos , Personas con Discapacidad , Femenino , Hemoglobinas/análisis , Hepcidinas/fisiología , Humanos , Infusiones Parenterales , Hierro/farmacocinética , Deficiencias de Hierro , Masculino , Ciencias de la Nutrición , Prevalencia , Calidad de Vida , Factores de Riesgo
12.
Int J Mol Sci ; 21(20)2020 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-33086751

RESUMEN

Glucose uptake in the brain decreases because of normal aging but this decline is accelerated in Alzheimer's disease (AD) patients. In fact, positron emission tomography (PET) studies have shown that metabolic reductions in AD patients occur decades before the onset of symptoms, suggesting that metabolic deficits may be an upstream event in at least some late-onset cases. A decrease in availability of glucose content induces a considerable impairment/downregulation of glycosylation, which is an important post-translational modification. Glycosylation is an important and highly regulated mechanism of secondary protein processing within cells and it plays a crucial role in modulating stability of proteins, as carbohydrates are important in achieving the proper three-dimensional conformation of glycoproteins. Moreover, glycosylation acts as a metabolic sensor that links glucose metabolism to normal neuronal functioning. All the proteins involved in ß-amyloid (Aß) precursor protein metabolism have been identified as candidates of glycosylation highlighting the possibility that Aß metabolism could be regulated by their glycosylation. Within this framework, the present review aims to summarize the current understanding on the role of glycosylation in the etiopathology of AD, emphasizing the idea that glucose metabolic pathway may represent an alternative therapeutic option for targeting AD. From this perspective, the pharmacological modulation of glycosylation levels may represent a 'sweet approach' to treat AD targeting new mechanisms independent of the amyloid cascade and with comparable impacts in familial and sporadic AD.


Asunto(s)
Enfermedad de Alzheimer/metabolismo , Enfermedad de Alzheimer/terapia , Glucosa/metabolismo , Redes y Vías Metabólicas , Terapia Molecular Dirigida , Animales , Glicosilación , Humanos , Modelos Biológicos
13.
Int J Mol Sci ; 21(20)2020 Oct 09.
Artículo en Inglés | MEDLINE | ID: mdl-33050345

RESUMEN

Alzheimer's disease (AD) is an age-related dementia and neurodegenerative disorder, characterized by Aß and tau protein deposition impairing learning, memory and suppressing synaptic plasticity of neurons. Increasing evidence suggests that there is a link between the glucose and glutamate alterations with age that down-regulates glucose utilization reducing glutamate levels in AD patients. Deviations in brain energy metabolism reinforce the development of AD by hampering glutamate levels in the brain. Glutamate is a nonessential amino acid and the major excitatory neurotransmitter synthesized from glucose. Alterations in cerebral glucose and glutamate levels precede the deposition of Aß plaques. In the brain, over 40% of neuronal synapses are glutamatergic and disturbances in glutamatergic function have been implicated in pathophysiology of AD. Nevertheless, targeting the glutamatergic system seems to be a promising strategy to develop novel, improved therapeutics for AD. Here, we review data supporting the involvement of the glutamatergic system in AD pathophysiology as well as the efficacy of glutamatergic agents in this neurodegenerative disorder. We also discuss exciting new prospects for the development of improved therapeutics for this devastating disorder.


Asunto(s)
Enfermedad de Alzheimer/etiología , Enfermedad de Alzheimer/metabolismo , Ácido Glutámico/metabolismo , Neuronas/metabolismo , Transmisión Sináptica , Enfermedad de Alzheimer/tratamiento farmacológico , Enfermedad de Alzheimer/patología , Animales , Biomarcadores , Manejo de la Enfermedad , Susceptibilidad a Enfermedades , Glucosa/metabolismo , Humanos , Terapia Molecular Dirigida , Neuronas/efectos de los fármacos , Receptores Ionotrópicos de Glutamato/metabolismo , Transmisión Sináptica/efectos de los fármacos
14.
J Viral Hepat ; 26(11): 1249-1256, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31243849

RESUMEN

The advent of highly effective and well-tolerated direct antiviral antivirals (DAAs) has dramatically changed the landscape of chronic hepatitis C. The effect of DAAs in older adults is difficult to determine since patients aged ≥ 65 years were too few in most clinical trials and data mainly come from observational studies. We performed a systematic review and meta-analysis to evaluate the efficacy and safety of DAAs in patients aged 65 and older. PubMed, Scopus, Web of Science, Cochrane Central Register of Controlled Trials, ClinicalTrials.gov, HCV-Trials.com databases were searched for literature published until 1 December 2017. English language articles reporting results of phase 2 or 3 randomized controlled trials (RCTs), single-arm clinical trials (SATs) and observational studies were included in the final analysis. All studies included subgroups of older patients and compared their outcomes with younger individuals. By using a random-effects or fixed-effects model, odds ratio (OR) was calculated for the efficacy and safety. Heterogeneity was tested using I2 statistics. Thirty-seven studies reported data on the DAA efficacy. The OR was 1.66 (95%CI: 1.00-2.75; P = 0.06) in meta-analysis of RCTs, and similar results were found in SATs and observational studies. HCV genotype, stage of fibrosis or HIV co-infection did not affect the rate of SVR in older persons. Prevalence of anaemia (OR 0.26 95%CI: 0.09-0.69; P = 0.007) (OR 0.25 95%CI: 0.09-0.69; P = 0.007) and skin complaints (OR 0.61 95%CI: 0.45-0.83; P = 0.001) was higher in older adults. Finally, geriatric patients affected by chronic HCV infection can be safely treated with DAAs with the same efficacy reported in younger adults.


Asunto(s)
Antivirales/uso terapéutico , Evaluación Geriátrica , Hepatitis C/tratamiento farmacológico , Factores de Edad , Anciano , Anciano de 80 o más Años , Antivirales/farmacología , Quimioterapia Combinada , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Hepatitis C/complicaciones , Hepatitis C/epidemiología , Hepatitis C/virología , Humanos , Cirrosis Hepática/epidemiología , Cirrosis Hepática/etiología , Resultado del Tratamiento
16.
Liver Int ; 39(10): 1852-1859, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31175707

RESUMEN

BACKGROUND AND AIMS: It is paramount to identify predictors of treatment failure with direct antiviral agents in 'field-practice' patients, including people who inject drugs (PWID). Data on the efficacy of glecaprevir/pibrentasvir (GLE/PIB) in a field-practice scenario are scant. The multicentre MISTRAL study enrolled 1177 patients, including PWID, to assess real-life efficacy and safety of GLE/PIB and to identify the predictive factors for this treatment. METHODS: This was a prospective, longitudinal study. The outcome variable was the rate of sustained virological response (SVR) at week 12. RESULTS: A total of 123 patients (10%) were infected from hepatitis C virus (HCV) 3. METAVIR fibrosis score was F4 in 104 subjects (9%); 118 patients (10%) were PWID. Overall, 1163/1177 (99%) patients achieved SVR. The baseline clinical factors discriminating between treatment success and treatment failure were age at treatment (P = 0.031) and creatinine level (P = 0.034). SVR rates were not influenced by gender, substance abuse, previous treatment, treatment duration, fibrosis or chronic kidney disease stage. Compared with non-substance users, the 118 PWID exhibited a significantly different genotype pattern distribution (χ2  < 0.001). A total of 40/118 (33.9%) of substance users were HCV3 compared to 83/1056 (7.9%) non-substance users. Only 6 patients (0.5%) reported a serious adverse event. CONCLUSIONS: The MISTRAL study provides evidence of GLE/PIB efficacy in a field-practice scenario in a highly epidemic HCV area in southern Italy; it unveiled significant differences in genotype distribution among the most underserved and difficult-to-treat patient subgroups including PWID.


Asunto(s)
Antivirales/uso terapéutico , Bencimidazoles/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Quinoxalinas/uso terapéutico , Sulfonamidas/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Ácidos Aminoisobutíricos , Ciclopropanos , Quimioterapia Combinada , Femenino , Genotipo , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Humanos , Italia , Lactamas Macrocíclicas , Leucina/análogos & derivados , Cirrosis Hepática/virología , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Prolina/análogos & derivados , Estudios Prospectivos , Pirrolidinas , Abuso de Sustancias por Vía Intravenosa/complicaciones , Respuesta Virológica Sostenida , Adulto Joven
17.
Aging Clin Exp Res ; 31(5): 727-732, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30132205

RESUMEN

AIM: Aging is associated with increased inflammation, particularly in frailty. Indeed, such patient presents increased serum inflammatory markers, such as C-reactive protein and interleukin-6. Interleukin-6 is an important stimulating factor for the production of procalcitonin. The aim of this study is to evaluate the diagnostic reliability of serum PCT in the diagnosis of sepsis in frail elderly patients. METHODS: Using Fried's criteria for frailty, 140 older patients hospitalized for any cause were consecutively enrolled and divided in two groups: no-frail (60 patients) and frail (80 patients). Patients were further categorized on the basis of the presence/absence of sepsis. Interleukin-6, procalcitonin and inflammatory indices were sampled at hospital admission. RESULTS: Septic patients from frail and no-frail groups showed higher values of interleukin-6 and procalcitonin. However, focusing on groups without sepsis, a statistically significant difference of interleukin-6 and procalcitonin values among frail and no-frail groups was seen at the post-hoc analysis. In frail group, procalcitonin cut-off of 0.5 ng/ml had a sensibility and specificity, respectively, of 100 and 22%. Through receiver operating characteristic curve (ROC) analysis, we found that procalcitonin serum value of 1.4 ng/ml had better sensibility and specificity (respectively, 93.8 and 84.4%, AUC 0.965). CONCLUSIONS: In our study, we confirm the diagnostic reliability of procalcitonin in frail elderly patients for the diagnosis of sepsis. We found that 1.4 ng/ml was the best cut-off in this population.


Asunto(s)
Polipéptido alfa Relacionado con Calcitonina/sangre , Sepsis/sangre , Sepsis/diagnóstico , Anciano , Biomarcadores/sangre , Proteína C-Reactiva/metabolismo , Estudios de Casos y Controles , Femenino , Fragilidad/complicaciones , Humanos , Interleucina-6/sangre , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Curva ROC , Reproducibilidad de los Resultados , Sepsis/complicaciones
19.
Int J Mol Sci ; 20(1)2018 Dec 22.
Artículo en Inglés | MEDLINE | ID: mdl-30583555

RESUMEN

Chronic hepatitis C is associated with a high risk of developing hepatocellular carcinoma (HCC) because of a direct effect of the Hepatitis C Virus (HCV) proteins and an indirect oncogenic effect of chronic inflammation and impaired immune response. The treatment of chronic hepatitis C markedly reduces all-cause mortality; in fact, interferon-based treatment has shown a reduction of HCC incidence of more than 70%. The recent introduction of the highly effective direct-acting antivirals (DAAs) has completely changed the scenario of chronic hepatitis C (CHC) with rates of HCV cure over 90%. However, an unexpectedly high incidence of HCC recurrence was observed in patients after DAA treatment (27% versus 0.4⁻2% in patients who received interferon treatment). The mechanism that underlies the high rate of tumor relapse is currently unknown and is one of the main issues in hepatology. We reviewed the possible mechanisms involved in HCC recurrence after DAA treatment.


Asunto(s)
Antivirales/uso terapéutico , Carcinoma Hepatocelular/tratamiento farmacológico , Hepatitis C Crónica/tratamiento farmacológico , Neoplasias Hepáticas/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Animales , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/inmunología , Carcinoma Hepatocelular/virología , Hepacivirus/efectos de los fármacos , Hepacivirus/inmunología , Hepatitis C Crónica/epidemiología , Hepatitis C Crónica/inmunología , Hepatitis C Crónica/virología , Humanos , Incidencia , Interferones/uso terapéutico , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/inmunología , Neoplasias Hepáticas/virología , Macrófagos/efectos de los fármacos , Monocitos/efectos de los fármacos , Recurrencia Local de Neoplasia/epidemiología , Recurrencia Local de Neoplasia/inmunología , Recurrencia Local de Neoplasia/virología , Neutrófilos/efectos de los fármacos
20.
J Gastroenterol Hepatol ; 32(2): 439-445, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27356212

RESUMEN

BACKGROUND AND AIM: Endoscopic ultrasonography guided-celiac plexus neurolysis relieves pain in patients with pancreatic cancer but with often suboptimal and transient results. The study aims to compare the efficacy and safety of endoscopic ultrasound-guided tumor ethanol ablation combined with celiac plexus neurolysis with respect to celiac plexus neurolysis alone for pain management in patients with pancreatic cancer. METHODS: Among 123 patients with unresectable pancreatic cancer referred to our Institution between 2006 and 2014, 58 treated with endoscopic ultrasound-guided celiac plexus neurolysis (Group 1) and 65 with the combined approach (Group 2) were compared. Logistic regression models were applied to identify predictors of pain relief. RESULTS: The two groups presented similar baseline clinical and tumoral parameters. Pre-procedural visual analog scale score was 7 in both groups (P = 0.8), and tumor max diameter was 38 mm (range 25-59) in Group 1 and 43 mm (22-59) in Group 2 (P = 0.4). The combined treatment increased pain relief and complete pain response rate (P = 0.005 and 0.003, respectively). Median duration of pain relief was 10 (7-14) and 18 (13-20) weeks in the two groups, respectively (P = 0.004). At multivariate regression, initial visual analog scale score and endoscopic technique adopted resulted significantly associated with pain relief. No severe treatment-related adverse events were reported. Median overall survival was 6.5 months (5.1-8.6) in Group 1 and 8.3 months (6-11.4) in Group 2 (P = 0.05). CONCLUSIONS: Endoscopic ultrasound-guided tumor ablation combined with celiac plexus neurolysis appears to be superior to celiac plexus neurolysis alone in terms of pain control and overall survival.


Asunto(s)
Técnicas de Ablación/métodos , Adenocarcinoma/terapia , Dolor en Cáncer/terapia , Plexo Celíaco , Endosonografía , Etanol , Bloqueo Nervioso/métodos , Manejo del Dolor/métodos , Neoplasias Pancreáticas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Dolor en Cáncer/etiología , Terapia Combinada , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
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