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1.
Gels ; 10(2)2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38391463

RESUMO

Mesoporous materials containing heteroelements have a huge potential for use as catalysts, exchangers, and adsorbents due to their tunable nanometer-sized pores and exceptionally large internal surfaces accessible to bulky organic molecules. In the present work, ordered mesoporous silica containing Ni atoms as active sites was synthesized by a new low-temperature method of condensation of silica precursors on a micellar template from aqueous solutions in the presence of nickel salt. The homogeneity of the resulting product was achieved by introducing ammonia and ammonium salt as a buffer to maintain a constant pH value. The obtained materials were characterized by nitrogen sorption, X-ray and neutron diffraction, scanning electron microscopy, infrared spectroscopy, and thermal analysis. Their morphology consists of polydisperse spherical particles 50-300 nm in size, with a hexagonally ordered channel structure, high specific surface area (ABET = 900-1200 m2/g), large pore volume (Vp = 0.70-0.90 cm3/g), average mesopore diameter of about 3 nm, and narrow pore size distribution. Adsorption tests for methylene blue show sorption capacities reaching 39-42 mg/g at alkaline pH. The advantages of producing nickel silicates by this method, in contrast to precipitation from silicon alkoxides, are the low cost of reagents, fire safety, room-temperature processing, and the absence of specific problems associated with the use of ethanol as a solvent, as well as the absence of the inevitable capture of organic matter in the precipitation process.

2.
Biometals ; 37(2): 461-475, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38110781

RESUMO

Citric acid plays an ubiquitous role in the complexation of essential metals like iron and thus it has a key function making them biologically available. For this, iron(III) citrate complexes are considered among the most significant coordinated forms of ferric iron that take place in biochemical processes of all living organisms. Although these systems hold great biological relevance, their coordination chemistry has not been fully elucidated yet. The current study aimed to investigate the speciation of iron(III) citrate using Mössbauer and electron paramagnetic resonance spectroscopies. Our aim was to gain insights into the structure and nuclearity of the complexes depending on the pH and iron to citrate ratio. By applying the frozen solution technique, the results obtained directly reflect the iron speciation present in the aqueous solution. At 1:1 iron:citrate molar ratio, polynuclear species prevailed forming most probably a trinuclear structure. In the case of citrate excess, the coexistence of several monoiron species with different coordination environments was confirmed. The stability of the polynuclear complexes was checked in the presence of organic solvents.


Assuntos
Compostos Férricos , Ferro , Ferro/química , Compostos Férricos/química , Ácido Cítrico/química , Citratos/química
3.
J Gastrointestin Liver Dis ; 31(4): 403-410, 2022 12 16.
Artigo em Inglês | MEDLINE | ID: mdl-36535055

RESUMO

BACKGROUND AND AIMS: Objective monitoring and effective early treatment using a treat-to-target approach are key to improving therapeutic outcomes in IBD patients. This study aimed to assess adherence to objective monitoring (clinical, biomarkers, and endoscopy) and its impact on clinical outcomes. METHODS: A prospective, multicenter study included consecutive IBD patients starting on adalimumab therapy between January 2019 and December 2020. Disease activity, assessed by the Harvey-Bradshaw index (HBI), partial Mayo, C-reactive protein (CRP), fecal calprotectin (FCAL), and endoscopy were evaluated at adalimumab initiation and 3, 6, 9 and 12 months. Therapeutic drug monitoring, changes in treatment, drug sustainability, and clinical outcomes were assessed. RESULTS: 104 IBD patients were enrolled (78.8% CD, median age 34.3 years, disease duration 9 years). During the 12 months follow-up, high adherence to clinical activity assessment was observed in both CD (81.3%- 87.7%) and UC patients (76.5-90.9%). CRP measurement decreased over time in both CD (37.3%-54.9%) and UC (29.4%-50.0%). The adherence to serial FCAL monitoring was low in CD (22.7-31.3%) and UC patients (17.6-56.0%). UC patients had higher adherence to early endoscopic assessment (<6 months) compared to CD patients (40.9% vs. 21.5%). Adherence to early combined clinical and biomarkers resulted in earlier dose optimization in CD and UC (log-rank<0.001), but drug sustainability was not different. The patients with early combined adherence had a significantly higher clinical remission rate at 1 year compared to non-adherence (70.2% vs. 29.8%, p=0.007) but no significant difference in UC patients. CONCLUSIONS: The adherence to early objective monitoring with combined clinical and biomarkers assessment in IBD patients starting adalimumab therapy led to dose optimization and improved 1-year clinical remission in CD but did not change drug sustainability and clinical remission in UC.


Assuntos
Adalimumab , Colite Ulcerativa , Doença de Crohn , Monitoramento de Medicamentos , Cooperação do Paciente , Adulto , Humanos , Adalimumab/uso terapêutico , Biomarcadores/análise , Proteína C-Reativa/metabolismo , Colite Ulcerativa/tratamento farmacológico , Doença de Crohn/tratamento farmacológico , Endoscopia Gastrointestinal , Complexo Antígeno L1 Leucocitário/metabolismo , Estudos Prospectivos , Indução de Remissão
4.
J Clin Med ; 11(15)2022 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-35956040

RESUMO

Background and Aim: Newer biologics appeared safer in landmark clinical trials, but their safety is understudied in vulnerable populations. The aim of the present study was to perform a systematic review and meta-analysis to assess the safety of available biologicals in the elderly IBD population. Methods: We systematically searched PubMed/Medline and conference proceedings between 1 April 1969 and 1 June 2021 to identify eligible studies that examined the safety of biologics in elderly patients with IBD. Of the 2885 articles and 12 congress abstracts identified, 12 peer reviewed papers and 3 abstracts were included after independent evaluation by two reviewers. The identified studies collected safety data on anti-TNF, vedolizumab (VDZ) and ustekinumab (UST). Results: Rates of AE and infections were not different among the biologics (AE mean rate: 11.3 (CI 95% 9.9-12.7)/100 pts-years; p = 0.11, infection mean rate: 9.5 (CI 95% 8.4-10.6)/100 pts-years; p = 0.56) in elderly IBD patients on anti-TNF, VDZ or UST. Infusion/injection reaction rates were more common on anti-TNFs (mean rate: 2.51 (CI 95% 1.7-3.4/100 pts-years; p = 0.02). and malignancy rates were higher on VDZ/UST (mean rate: 2.14 (CI 95% 1.6-2.8)/100 pts-years; p = 0.01). Conclusions: Rates of AEs and infections were not different among biologicals. Infusion/injection reactions were more common on anti-TNFs. Current data are insufficient to suggest the sequencing of biologicals in elderly patients based on safety.

5.
World J Gastroenterol ; 28(21): 2291-2301, 2022 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35800183

RESUMO

Clinical manifestations and progression of primary sclerosing cholangitis (PSC) are heterogeneous, and its pathogenesis is poorly understood. The importance of gut-liver interactions in the pathogenesis has been clinically confirmed and highlighted in different theories. Recent advances regarding biomarkers of biliary-gut crosstalk may help to identify clinically relevant PSC subgroups assisting everyday clinical work-up (e.g., diagnosis, disease stratification, or surveillance) and the exploration of potential therapeutic targets. Alkaline phosphatase produced by the biliary epithelium is consistently associated with prognosis. However, its level shows natural fluctuation limiting its use in individual patients. Inflammatory, cell activation, and tissue remodeling markers have been reported to predict clinical outcome. Elevated immunoglobulin (Ig) G4 level is associated with a shorter transplantation-free survival. IgG type atypical perinuclear anti-neutrophil cytoplasmic antibodies (P-ANCAs) are non-specific markers of various autoimmune liver diseases and may reflect an abnormal B-cell response to gut microbial antigens. IgG type atypical P-ANCA identifies PSC patients with particular clinical and genetic (for human leukocyte antigens) characteristics. The presence of IgA type anti-F-actin antibody (AAA) may predict a progressive disease course, and it is associated with enhanced mucosal immune response to various microbial antigens and enterocyte damage. IgA type anti-glycoprotein 2 (GP2) antibodies identify patients with a severe disease phenotype and poor survival due to enhanced fibrogenesis or development of cholangiocarcinoma. Elevated soluble vascular adhesion protein-1 (sVAP-1) level is associated with adverse disease outcomes in PSC. High sVAP-1 levels correlate with mucosal addressin cell adhesion molecule-1 (MAdCAM-1) expression in the liver that contributes to gut activated T-cell homing to the hepatobiliary tract. In the present paper, we review the evidence on these possible serological markers that could potentially help address the unmet clinical needs in PSC.


Assuntos
Neoplasias dos Ductos Biliares , Colangite Esclerosante , Autoanticorpos , Ductos Biliares Intra-Hepáticos/metabolismo , Biomarcadores/metabolismo , Colangite Esclerosante/diagnóstico , Colangite Esclerosante/terapia , Humanos , Imunoglobulina A , Imunoglobulina G
6.
J Clin Med ; 11(11)2022 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-35683433

RESUMO

Fistulizing Crohn's disease (FCD) remains the most challenging aspect of treating patients with CD. FCD can occur in up to 30% of patients with CD and may lead to significant disability and impaired quality of life. The optimal treatment strategies for FCD require a multidisciplinary approach, including a combined medical and surgical approach. The therapeutic options for FCD are limited due to sparse evidence from randomized clinical trials (RCTs). The current recommendations are mainly based on post hoc analysis from RCTs, real-world clinical studies and expert opinion. There is variation in everyday clinical practice amongst gastroenterologists and surgeons. The evidence for anti-tumor necrosis factor therapy is the strongest in the treatment of FCD. However, long-term fistula healing can be achieved in only 30-50% of patients. In recent years, emerging data in the advent of therapeutic modalities, including the use of new biologic agents, therapeutic drug monitoring, novel surgical methods and mesenchymal stem cell therapy, have been shown to improve outcomes in achieving fistula healing. This review summarizes the existing literature on current and emerging therapies to provide guidance beyond RCTs in managing FCD.

7.
J Med Life ; 15(3): 336-343, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35449991

RESUMO

This study reviewed the current literature on technical aspects regarding controlled vocal fold injuries in the rat model. Data from PubMed, Embase, and Scopus database for English language literature was collected to identify methodological steps leading to a controlled surgical injury of the rat vocal fold. Inclusion criteria: full disclosure of anesthesia protocol, positioning of the rat for surgery, vocal fold visualization method, instrumentation for vocal fold injury, vocal fold injury type. Articles with partial contribution were evaluated and separately included due to the limited number of original methodologies. 724 articles were screened, and eleven articles were included in the analysis. Anesthesia: ketamine hydrochloride and xylazine hydrochloride varied in dose from 45 mg/kg and 4.5 mg/kg to 100 mg/kg and 10 mg/kg. Visualization: The preferred method was the 1.9 mm, 25-30 degree endoscopes. The widest diameter endoscope used was 2.7 mm with a 0 or 30 degree angle of view. Instruments for lesion induction range from 18 to 31G needles, microscissors, micro forceps to potassium titanyl phosphate, and blue light lasers. Injury types: vocal fold stripping was the main injury type, followed by vocal fold scarring and charring. One article describes scaffold implantation with injury to the superior aspect of the vocal fold. Rats are good candidates for in vivo larynx and vocal folds research. A more standardized approach should be considered regarding the type of vocal fold injury to ease data comparison.


Assuntos
Laringe , Prega Vocal , Animais , Cicatriz , Humanos , Laringe/patologia , Ratos , Prega Vocal/lesões , Prega Vocal/patologia , Prega Vocal/cirurgia
8.
Cell Oncol (Dordr) ; 45(1): 1-18, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35015241

RESUMO

BACKGROUND: In recent clinical practice, an increasing number of elderly patients suffering from head and neck squamous cell carcinoma (HNSCC) of unknown pathophysiology is observed. The majority of HNSCC patients can roughly be divided into three subcategories. First, a small group of young patients who present with variants of genomic aberrations and inheritable diseases like Fanconi anaemia. Second, an increasing population of HPV-related HNSCCs that are regarded as genomic stable tumours with a more favourable prognosis. Though HPV-related tumours used to be more common among younger males, a notable rise in the elderly population is observed. The third subcategory, that of HPV-negative tumours, has been shown to be more heterogeneous with involvement of a variety of oncogenic pathways related to lifestyle factors like smoking and alcohol consumption, often seen in middle-aged males. Some of these pathways could be related to age, such as TP53 alterations, EGFR activation, apoptotic pathway alterations and field cancerization. CONCLUSIONS: In this narrative review, we provide an overview of established and newly discovered age-specific pathophysiological mechanisms underlying HNSCC. We propose a fourth subcategory of patients with a suspected different pathophysiology: elderly (HPV-negative) HNSCC patients without a history of tobacco and alcohol consumption. In this subcategory, carcinogenesis seems to be a multi-step process based on genomic instability, immunosenescence, cell cycle disruption and telomere shortening. To conclude, we discuss suggestions for future research to fill the knowledge gap about age-dependent HNSCC carcinogenesis.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Infecções por Papillomavirus , Fatores Etários , Idoso , Carcinogênese , Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/genética , Humanos , Masculino , Pessoa de Meia-Idade , Papillomaviridae/genética , Carcinoma de Células Escamosas de Cabeça e Pescoço/genética
9.
Crit Rev Toxicol ; 51(1): 15-23, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33432848

RESUMO

Small scale observational evidence suggested that Vitamin E (VE) might play beneficial role in human and animal respiratory conditions of various origin by stabilizing surfactant functions. The intra-aleveolar VE level is directly proportionate to the lung's response to inflammation. Electronic cigarette or vaping associated lung injury was a dominantly respiratory syndrome in the United States with seemingly strong association between potential Vitamin E acetate inhalation exposure and the onset of symptoms. This systematic review intended to assess if there was previous evidence of any potential respiratory/gastrointestinal toxicity associated with Vitamin E acetate or any of its derivatives. A systematic review was constructed and prospectively registered at PROSPERO to search important clinical databases between 2000 and 2020 for full text human articles investigating the effect of VEA or any of its derivatives administered via any route (oral/parenteral/aerosolised) in adults with any respiratory conditions. Out of 363 records investigating the effect of VEA and/or its derivatives/isomers in (any) lung injury (inflammatory, oxidative, infective, asthma/COPD) seven articles qualified. The papers reported various surrogate outcomes (APACHEII score, spirometry, etc) with equivocal results. There was one case report of harmful exposure to both Vitamin E (intramuscular) and Vitamin E acetate (topical). The present review found evidence of neither harm nor any significant clinical improvement associated with the administration of VEA or any derivatives via any route in adult inflammatory lung conditions however, the articles were of low-level evidence. Further studies are needed to correct flaws in research to explore the role of Vitamin E in pulmonology.


Assuntos
Acetatos/efeitos adversos , Exposição por Inalação , Lesão Pulmonar/induzido quimicamente , Vitamina E/efeitos adversos , Sistemas Eletrônicos de Liberação de Nicotina , Humanos , Estados Unidos , Vaping
10.
J Gastrointestin Liver Dis ; 29(4): 555-559, 2020 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-33331351

RESUMO

BACKGROUND AND AIMS: Anemia is a common complication of inflammatory bowel diseases (IBD), as well as a predictor of poor outcomes. The aim of this study was to determine the prevalence of anemia over time and the management of moderate to severe anemia at a tertiary referral IBD center. METHODS: We retrospectively reviewed the occurrence of anemia at the time of referral or diagnosis and during follow-up at the McGill University Health Centre IBD center. Consecutive patients presenting with an outpatient visit between July and December 2016 and between December 2018 and March 2019 were included. Disease characteristics, biochemistry and medical management, including the need for intravenous iron therapy were recorded. RESULTS: 1,356 Crohn's disease (CD) and 1,293 ulcerative colitis (UC) patients [disease duration: 12 (IQR: 6-22) and 10 (IQR: 5-19) years respectively] were included. The prevalence of moderate to severe anemia at referral/diagnosis (15.4% and 8.5%) and during follow-up (11.1% and 8.1%) were higher in CD than in UC patients. In CD, previous resective surgery, perianal disease and elevated C-reactive protein (CRP) at assessment, while in UC steroid therapy, an elevated CRP and fecal calprotectin at assessment were associated with anemia in a multivariate analysis. Anemia improved by >2g/dL in 56.5% after 4-6 weeks (intravenous iron dose >1000 mg in 87% of patients). CONCLUSION: Anemia occurred frequently in this IBD cohort, at referral to the center and during follow-up, and contributes to the burden of IBD in referral populations. Most patients were assessed for anemia regularly and with accurate anemia workup; however, the targeted management of moderate to severe anemia was suboptimal.


Assuntos
Anemia/epidemiologia , Colite Ulcerativa/epidemiologia , Doença de Crohn/epidemiologia , Anemia/diagnóstico , Anemia/tratamento farmacológico , Colite Ulcerativa/diagnóstico , Doença de Crohn/diagnóstico , Feminino , Óxido de Ferro Sacarado/administração & dosagem , Hematínicos/administração & dosagem , Humanos , Infusões Intravenosas , Masculino , Prevalência , Quebeque/epidemiologia , Estudos Retrospectivos , Índice de Gravidade de Doença , Centros de Atenção Terciária , Fatores de Tempo
11.
Nanomaterials (Basel) ; 10(11)2020 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-33203017

RESUMO

Experiments were conducted for the study of the effect of cysteine addition on the microstructure of nanocrystalline Ni films electrodeposited from a nickel sulfate-based bath. Furthermore, the thermal stability of the nanostructure of Ni layers processed with cysteine addition was also investigated. It was found that with increasing cysteine content in the bath, the grain size decreased, while the dislocation density and the twin fault probability increased. Simultaneously, the hardness increased due to cysteine addition through various effects. Saturation in the microstructure and hardness was achieved at cysteine contents of 0.3-0.4 g/L. Moreover, the texture changed from (220) to (200) with increasing the concentration of cysteine. The hardness of the Ni films processed with the addition of 0.4 g/L cysteine (∼6800 MPa) was higher than the values obtained for other additives in the literature (<6000 MPa). This hardness was further enhanced to ∼8400 MPa when the Ni film was heated up to 500 K. It was revealed that the hardness remained as high as 6000 MPa even after heating up to 750 K, while for other additives, the hardness decreased below 3000 MPa at the same temperature.

12.
World J Gastroenterol ; 26(7): 759-769, 2020 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-32116423

RESUMO

BACKGROUND: Emergency situations in inflammatory bowel diseases (IBD) put significant burden on both the patient and the healthcare system. AIM: To prospectively measure Quality-of-Care indicators and resource utilization after the implementation of the new rapid access clinic service (RAC) at a tertiary IBD center. METHODS: Patient access, resource utilization and outcome parameters were collected from consecutive patients contacting the RAC between July 2017 and March 2019 in this observational study. For comparing resource utilization and healthcare costs, emergency department (ED) visits of IBD patients with no access to RAC services were evaluated between January 2018 and January 2019. Time to appointment, diagnostic methods, change in medical therapy, unplanned ED visits, hospitalizations and surgical admissions were calculated and compared. RESULTS: 488 patients (Crohn's disease: 68.4%/ulcerative colitis: 31.6%) contacted the RAC with a valid medical reason. Median time to visit with an IBD specialist following the index contact was 2 d. Patients had objective clinical and laboratory assessment (C-reactive protein and fecal calprotectin in 91% and 73%). Fast-track colonoscopy/sigmoidoscopy was performed in 24.6% of the patients, while computed tomography/magnetic resonance imaging in only 8.1%. Medical therapy was changed in 54.4%. ED visits within 30 d following the RAC visit occurred in 8.8% (unplanned ED visit rate: 5.9%). Diagnostic procedures and resource utilization at the ED (n = 135 patients) were substantially different compared to RAC users: Abdominal computed tomography was more frequent (65.7%, P < 0.001), coupled with multiple specialist consults, more frequent hospital admission (P < 0.001), higher steroid initiation (P < 0.001). Average medical cost estimates of diagnostic procedures and services per patient was $403 CAD vs $1885 CAD comparing all RAC and ED visits. CONCLUSION: Implementation of a RAC improved patient care by facilitating easier access to IBD specific medical care, optimized resource utilization and helped avoiding ED visits and subsequent hospitalizations.


Assuntos
Assistência Ambulatorial/estatística & dados numéricos , Utilização de Instalações e Serviços/estatística & dados numéricos , Doenças Inflamatórias Intestinais/terapia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Indicadores de Qualidade em Assistência à Saúde/estatística & dados numéricos , Adulto , Assistência Ambulatorial/métodos , Assistência Ambulatorial/normas , Colite Ulcerativa/terapia , Colonoscopia/estatística & dados numéricos , Doença de Crohn/terapia , Emergências , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Implementação de Plano de Saúde , Acessibilidade aos Serviços de Saúde , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Prospectivos , Encaminhamento e Consulta/estatística & dados numéricos
13.
J Gastrointestin Liver Dis ; 28(1): 131-132, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30851185
14.
Orv Hetil ; 160(9): 322-328, 2019 Mar.
Artigo em Húngaro | MEDLINE | ID: mdl-30798622

RESUMO

The diagnostics of gastrointestinal diseases have evolved significantly in the past few decades. Besides endoscopy and conventional imaging modalities, there is a growing interest for rapid point-of-care laboratory tests to help discriminate between diseases with similar clinical symptoms and/or help the follow-up of chronic conditions, predicting relapses. The fecal calprotectin testing is a routine diagnostic tool in many countries. It is also more and more accessible in Hungary as well. We aim to present a short review on the role and performance of fecal calprotectin test in the diagnosis and follow-up of gastrointestinal diseases, especially inflammatory bowel diseases, gastrointestinal infections, irritable bowel syndrome and pediatric conditions. By presenting the different cut-off values, sensitivity and specificity rates representative for each disease, we hope to further aid clinicians in decision-making regarding these conditions. Orv Hetil. 2019; 160(9): 322-328.


Assuntos
Doença de Crohn/diagnóstico , Fezes/química , Doenças Inflamatórias Intestinais/diagnóstico , Complexo Antígeno L1 Leucocitário/análise , Biomarcadores/análise , Criança , Humanos , Hungria , Valor Preditivo dos Testes , Sensibilidade e Especificidade , Índice de Gravidade de Doença
15.
Clin Chem Lab Med ; 57(9): 1308-1318, 2019 08 27.
Artigo em Inglês | MEDLINE | ID: mdl-30721141

RESUMO

Background Procalcitonin (PCT)-guided antibiotic stewardship (ABS) has been shown to reduce antibiotics (ABxs), with lower side-effects and an improvement in clinical outcomes. The aim of this experts workshop was to derive a PCT algorithm ABS for easier implementation into clinical routine across different clinical settings. Methods Clinical evidence and practical experience with PCT-guided ABS was analyzed and discussed, with a focus on optimal PCT use in the clinical context and increased adherence to PCT protocols. Using a Delphi process, the experts group reached consensus on different PCT algorithms based on clinical severity of the patient and probability of bacterial infection. Results The group agreed that there is strong evidence that PCT-guided ABS supports individual decisions on initiation and duration of ABx treatment in patients with acute respiratory infections and sepsis from any source, thereby reducing overall ABx exposure and associated side effects, and improving clinical outcomes. To simplify practical application, the expert group refined the established PCT algorithms by incorporating severity of illness and probability of bacterial infection and reducing the fixed cut-offs to only one for mild to moderate and one for severe disease (0.25 µg/L and 0.5 µg/L, respectively). Further, guidance on interpretation of PCT results to initiate, withhold or discontinue ABx treatment was included. Conclusions A combination of clinical patient assessment with PCT levels in well-defined ABS algorithms, in context with continuous education and regular feedback to all ABS stakeholders, has the potential to improve the diagnostic and therapeutic management of patients suspected of bacterial infection, thereby improving ABS effectiveness.


Assuntos
Gestão de Antimicrobianos/métodos , Pró-Calcitonina/metabolismo , Adulto , Algoritmos , Antibacterianos/uso terapêutico , Infecções Bacterianas/diagnóstico , Biomarcadores/sangue , Calcitonina/uso terapêutico , Consenso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pró-Calcitonina/fisiologia , Sepse/diagnóstico
16.
Gut ; 68(3): 423-433, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-29363534

RESUMO

OBJECTIVE: The Epi-IBD cohort is a prospective population-based inception cohort of unselected patients with inflammatory bowel disease from 29 European centres covering a background population of almost 10 million people. The aim of this study was to assess the 5-year outcome and disease course of patients with Crohn's disease (CD). DESIGN: Patients were followed up prospectively from the time of diagnosis, including collection of their clinical data, demographics, disease activity, medical therapy, surgery, cancers and deaths. Associations between outcomes and multiple covariates were analysed by Cox regression analysis. RESULTS: In total, 488 patients were included in the study. During follow-up, 107 (22%) patients received surgery, while 176 (36%) patients were hospitalised because of CD. A total of 49 (14%) patients diagnosed with non-stricturing, non-penetrating disease progressed to either stricturing and/or penetrating disease. These rates did not differ between patients from Western and Eastern Europe. However, significant geographic differences were noted regarding treatment: more patients in Western Europe received biological therapy (33%) and immunomodulators (66%) than did those in Eastern Europe (14% and 54%, respectively, P<0.01), while more Eastern European patients received 5-aminosalicylates (90% vs 56%, P<0.05). Treatment with immunomodulators reduced the risk of surgery (HR: 0.4, 95% CI 0.2 to 0.6) and hospitalisation (HR: 0.3, 95% CI 0.2 to 0.5). CONCLUSION: Despite patients being treated early and frequently with immunomodulators and biological therapy in Western Europe, 5-year outcomes including surgery and phenotype progression in this cohort were comparable across Western and Eastern Europe. Differences in treatment strategies between Western and Eastern European centres did not affect the disease course. Treatment with immunomodulators reduced the risk of surgery and hospitalisation.


Assuntos
Doença de Crohn/terapia , Adulto , Estudos de Coortes , Colectomia , Doença de Crohn/epidemiologia , Doença de Crohn/patologia , Progressão da Doença , Europa (Continente)/epidemiologia , Feminino , Seguimentos , Glucocorticoides/uso terapêutico , Hospitalização/estatística & dados numéricos , Humanos , Fatores Imunológicos/uso terapêutico , Obstrução Intestinal/epidemiologia , Obstrução Intestinal/etiologia , Obstrução Intestinal/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias/epidemiologia , Prognóstico , Estudos Prospectivos , Índice de Gravidade de Doença , Adulto Jovem
17.
Neuropsychopharmacol Hung ; 20(3): 81-93, 2018 Sep.
Artigo em Húngaro | MEDLINE | ID: mdl-30459285

RESUMO

When facing comorbidity, effects of medicating one disorder on the other disease is a key question for the clinician. As depression influences both development and outcome of oncological diseases, early diagnosis and therapy, primarily with antidepressants, is of paramount importance. This paper gives a survey on the effects of antidepressants on comorbid mood disorders, on the course of cancerous diseases and on the tumor itself. Response to therapy is similar for patients with comorbid and primary depression, just as there is no significant difference in tolerability. Early studies have shown that antidepressants increase the risk of tumor development, have negative effects on the outcome of oncological diseases and even increase mortality. However, recent epidemiological and clinical studies show opposing results and demonstrate beneficial action of antidepressants on various oncological diseases such as glióma and hepatocellular cancer. Like any drug, antidepressants have effects not only on targets in the brain but also on other organs, hence on tumor tissues as well. Latest preclinical studies demonstrate that certain antidepressants facilitate apoptosis, autophagy of tumor cells and potentiate the efficacy of anticancer agents acting as chemosensitizers. Direct and indirect antitumor effects of antidepressants are proven, however, their clinical use requires further studies focusing on the specificity of agents on different tumor types.


Assuntos
Antidepressivos/uso terapêutico , Transtorno Depressivo , Comorbidade , Depressão , Transtorno Depressivo/tratamento farmacológico , Transtorno Distímico , Humanos
18.
Neuropsychopharmacol Hung ; 20(2): 59-64, 2018 Jun.
Artigo em Húngaro | MEDLINE | ID: mdl-30131452

RESUMO

Depression is a common comorbid condition in patients with cancer, but the background mechanisms underlying the relationship between depression and cancer are not well clarified. Depression and cancer are prevalent public health problems in the Western world. In this article, I review the recent knowledge regarding possible etiological mechanisms in particular biological contexts. Inflammation and chronic stress play a role in the development of both types of disease, which can explain high comorbidity. Depression in cancer patients increases the time of hospitalization and mortality, lowers quality of life, decreases compliance, and results in worse prognosis.


Assuntos
Depressão/epidemiologia , Neoplasias , Comorbidade , Humanos , Neoplasias/epidemiologia , Qualidade de Vida
19.
Dig Liver Dis ; 50(1): 37-41, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29107471

RESUMO

BACKGROUND: In the management of inflammatory bowel diseases, there is considerable variation in quality of care. AIMS: The aim of this study was to evaluate structural, access/process components and outcome quality indicators in our tertiary referral IBD center. METHODS: In the first phase, structural/process components were assessed, followed by the second phase of formal evaluation of access and management on a set of consecutive IBD patients with and without active disease (248CD/125UC patients, median age 35/39 years). RESULTS: Structural/process components of our IBD center met the international recommendations. At or around the time of diagnosis usual procedures were full colonoscopy in all patients, with ileocolonoscopy/gastroscopy/CT/MRI in 81.8/45.5/66.1/49.6% of CD patients. A total of 86.7% of CD patients had any follow-up imaging evaluation or endoscopy. The median waiting time for non-emergency endoscopy/CT/MRI was 16/14/22 days. During the observational period patients with flares (CD/UC:50.6/54.6%) were seen by specialist at the IBD clinic within a median of 1day with same day laboratory assessment, abdominal US, CT scan/surgical consult and change in therapy if needed. Surgery and hospitalization rates were 20.1/1.4% and 17.3/3.2% of CD/UC patients. CONCLUSION: Our results highlight that structural components and processes applied in our center are in line with international recommendations, including an open clinic concept and fast track access to specialist consultation, endoscopy and imaging.


Assuntos
Hospitalização/estatística & dados numéricos , Doenças Inflamatórias Intestinais/diagnóstico , Doenças Inflamatórias Intestinais/terapia , Indicadores de Qualidade em Assistência à Saúde , Procedimentos Cirúrgicos Operatórios/estatística & dados numéricos , Adulto , Colonoscopia , Feminino , Humanos , Hungria , Modelos Logísticos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Encaminhamento e Consulta , Centros de Atenção Terciária , Tomografia Computadorizada por Raios X
20.
J Crohns Colitis ; 11(10): 1213-1222, 2017 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-28575481

RESUMO

BACKGROUND AND AIMS: Anaemia is an important complication of inflammatory bowel disease [IBD]. The aim of this study was to determine the prevalence of anaemia and the practice of anaemia screening during the first year following diagnosis, in a European prospective population-based inception cohort. METHODS: Newly diagnosed IBD patients were included and followed prospectively for 1 year in 29 European and one Australian centre. Clinical data including demographics, medical therapy, surgery and blood samples were collected. Anaemia was defined according to the World Health Organization criteria. RESULTS: A total of 1871 patients (Crohn's disease [CD]: 686, 88%; ulcerative colitis [UC]: 1,021, 87%; IBD unclassified [IBDU] 164. 81%) were included in the study. The prevalence of anaemia was higher in CD than in UC patients and, overall, 49% of CD and 39% of UC patients experienced at least one instance of anaemia during the first 12 months after diagnosis. UC patients with more extensive disease and those from Eastern European countries, and CD patients with penetrating disease or colonic disease location, had higher risks of anaemia. CD and UC patients in need of none or only mild anti-inflammatory treatment had a lower risk of anaemia. In a significant proportion of patients, anaemia was not assessed until several months after diagnosis, and in almost half of all cases of anaemia a thorough work-up was not performed. CONCLUSIONS: Overall, 42% of patients had at least one instance of anaemia during the first year following diagnosis. Most patients were assessed for anaemia regularly; however, a full anaemia work-up was frequently neglected in this community setting.


Assuntos
Anemia/etiologia , Doenças Inflamatórias Intestinais/complicações , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anemia/diagnóstico , Anemia/epidemiologia , Colite Ulcerativa/complicações , Doença de Crohn/complicações , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
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