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1.
Psychogeriatrics ; 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38576072

RESUMO

BACKGROUND: Short-term cognitive impairment is associated with SARS-CoV-2 infection but the long-term impact is yet to be examined in detail. We aim to study the evolution of these symptoms in severe COVID-19 patients admitted to the intensive care unit (ICU) between April and December 2020 1 year after hospital discharge and to analyze its clinical correlates. METHOD: A total of 58 patients agreed to participate in the 6 months follow-up and 30 at 1 year after hospital discharge. Demographic, clinical and laboratory data were collected and a comprehensive neuropsychological battery including validated tests for the main cognitive domains was administered. To test the magnitude of neurocognitive sequelae, two standard deviations below normative group were considered. To compare the neuropsychological performance at 6 and 12 months follow-up we used repeated measures tests. Finally, regression analyses were performed to test the main effects of medical and psychological factors on multiple cognition. RESULTS: Almost half of the sample continued to have impaired performance on neuropsychological tests at 12 months follow-up. In comparison with the results obtained at 6 months, significant improvements were found in immediate recall (d = 0.49), delayed recall (d = 0.45), and inhibitory control (d = 0.53). Medical variables predicted cognitive performance at 6 months but not at 12 months follow-up, while anxiety and depression predicted cognitive deficits in the long-term. CONCLUSIONS: A generalised improvement was observed in severe COVID-19 patients at follow-up. This improvement was particularly notable in verbal memory and executive functioning. However, a considerable proportion of the sample continued to present deficits at 1 year follow-up.

2.
J Gastrointestin Liver Dis ; 33(1): 65-73, 2024 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-38386891

RESUMO

BACKGROUND AND AIMS: Walled-off necrosis (WON) is a serious complication of severe pancreatitis, patients with necrotizing pancreatitis having an increased risk of developing diabetes mellitus (DM). The aim of this study was to assess the frequency of new-onset diabetes (NOD) in patients with symptomatic WON after endoscopic ultrasound (EUS)-guided drainage with lumen-apposing metal stents (LAMS). METHODS: We retrospectively analyzed a prospectively collected database of patients with symptomatic WON treated by EUS-guided drainage with LAMS in a tertiary referral center. The patients were followed-up for at least 12 months after stent removal. These patients were compared with age- and sex-matched asymptomatic WON controls without interventional treatment and healthy controls to assess the one-year occurrence of DM. Diabetes was defined according to the American Diabetes Association criteria. RESULTS: Of the 50 patients with symptomatic WON included in the study (male/female ratio, 33:17; median age, 60 years), 13 patients (26%) had pre-existing DM and were excluded. Ten of the remaining 37 patients (27%) without prior DM developed NOD within one year after stent removal, this frequency being higher than in asymptomatic WON controls (18.9%, p=0.581) and healthy controls (2%, p = 0.002). In the symptomatic WON group, NOD patients compared to non-DM patients were older (63.5 vs. 56 years old, p=0.042), had more frequent necrosis > 50% of the pancreatic parenchyma (p=0.002) and had a body-tail location of WON (p<0.001). On multivariate analysis, the number of direct endoscopic necrosectomy (DEN) sessions was the only significant factor for NOD occurrence (OR=7.05, p=0.010). NOD patients had poor glycemic control and required more DEN sessions to achieve WON resolution than patients with prior DM (p=0.017). CONCLUSIONS: In patients with symptomatic WON treated by EUS-guided drainage, DM occurred in 27% of previously non-diabetic patients within one year of follow-up. Patients with extensive pancreatic necrosis were more likely to develop NOD, a high number of DEN sessions being a significant risk factor for NOD occurrence.


Assuntos
Diabetes Mellitus , Pancreatite Necrosante Aguda , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Retrospectivos , Resultado do Tratamento , Endossonografia , Stents/efeitos adversos , Pancreatite Necrosante Aguda/terapia , Diabetes Mellitus/epidemiologia , Drenagem/efeitos adversos , Necrose/etiologia
3.
Neurol Sci ; 2024 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-38374458

RESUMO

The presence of central nervous system lesions fulfilling the criteria of dissemination in space and time on MRI leads to the diagnosis of a radiologically isolated syndrome (RIS), which may be an early sign of multiple sclerosis (MS). However, some patients who do not fulfill the necessary criteria for RIS still evolve to MS, and some T2 hyperintensities that resemble demyelinating lesions may originate from mimics. In light of the recent recognition of the efficacy of disease-modifying therapy (DMT) in RIS, it is relevant to consider additional imaging features that are more specific of MS. We performed a narrative review on cortical lesions (CL), the central vein sign (CVS), and paramagnetic rim lesions (PRL) in patients with RIS. In previous RIS studies, the reported prevalence of CLs ranges between 20.0 and 40.0%, CVS + white matter lesions (WMLs) between 87.0 and 93.0% and PRLs between 26.7 and 63.0%. Overall, these imaging findings appear to be frequent in RIS cohorts, although not consistently taken into account in previous studies. The search for CLs, CVS + WML and PRLs in RIS patients could lead to earlier identification of patients who will evolve to MS and benefit from DMTs.

4.
Ther Adv Neurol Disord ; 16: 17562864231200627, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37954917

RESUMO

Background: Cladribine is an effective immunotherapy for people with multiple sclerosis (pwMS). Whilst most pwMS do not require re-treatment following standard dosing (two treatment courses), disease activity re-emerges in others. The characteristics of pwMS developing re-emerging disease activity remain incompletely understood. Objectives: To explore whether clinical and/or paraclinical baseline characteristics, including the degree of lymphocyte reduction, drug dose and lesions on magnetic resonance imaging (MRI) are associated with re-emerging disease activity. Design: Service evaluation in pwMS undergoing subcutaneous cladribine (SClad) treatment. Methods: Demographics, clinical, laboratory and MRI data of pwMS receiving two courses of SClad were extracted from health records. To assess associations of predictor variables with re-emerging disease activity, a series of Cox proportional hazards models was fitted (one for each predictor variable). Results: Of n = 264 pwMS 236 received two courses of SClad and were included in the analysis. Median follow-up was 4.5 years (3.9, 5.3) from the first, and 3.5 years (2.9, 4.3) from the last SClad administration. Re-emerging disease activity occurred in 57/236 pwMS (24%); 22/236 received further cladribine doses (SClad or cladribine tablets) at 36.7 months [median; interquartile range (IQR): 31.7, 42.1], and 22/236 other immunotherapies 18.9 months (13.0, 30.2) after their second course of SClad, respectively. Eligibility was based on MRI activity in 29, relapse in 5, both in 13, elevated cerebrospinal fluid neurofilament light chain level in 3, deterioration unrelated to relapse in 4 and other in 3. Only 36/57 of those eligible for additional immunotherapy had received a reduced dose of SClad for their second treatment course. Association was detected between re-emerging disease activity and (i) high baseline MRI activity and (ii) low second dose of SClad. Conclusion: Re-emerging disease activity was associated with baseline MRI activity and low dose second course of SClad.

5.
Diagnostics (Basel) ; 13(19)2023 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-37835791

RESUMO

A growing body of evidence suggests that endometrial immune disorders may be responsible for endometrial dysfunctions that can lead to gynecological and obstetrical pathology. The aim of this study was to explore the potential relationship between different killer cell immunoglobulin-like receptor (KIR) genotypes and reproductive outcomes. We conducted a prospective cohort study that included 104 infertile patients undergoing an in vitro fertilization procedure. All participants underwent clinical and ultrasound examination, genetic evaluation (KIR genotyping), endometrial washing fluid sampling for cytokine determination, endometrial tissue sampling for histologic assessment and hysteroscopic evaluation. Our analysis showed statistically significant lower levels of uterine cytokines TNF-α (p = 0.001) and IL-1beta (p = 0.000) in the KIR AA genotype group as compared to KIR AB and BB among study participants with chronic endometritis. The study results suggest that the KIR AA genotype population subgroups may be more susceptible to developing endometrial disorders such as chronic endometritis. The changes in the behavior of NK cells seem to be subtle and expressed as an altered regulatory pattern.

6.
Int J Mol Sci ; 24(17)2023 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-37686189

RESUMO

End-stage renal disease (ESRD) is the final stage of chronic kidney disease. This study explored the association between human leukocyte antigen (HLA) and ESRD. The interaction between genetic and environmental factors may also play a role in the development of ESRD. The study included 2392 ESRD patients who were awaiting renal transplantation. Blood samples were genotyped by SSOP and SSP-PCR methods. Multivariate logistic regression analysis showed that HLA-A*11 (p = 0.027), HLA-A*34 (p = 0.017), HLA-A*69 (p = 0.012), HLA-B*41 (p < 0.001), HLA-B*50 (p = 0.004), HLA-DRB1*10 (p = 0.027), and HLA-DRB1*14 (p = 0.004) were positively associated with ESRD (OR > 1); HLA-DRB1*07 (p < 0.001), HLA-DRB1*08 (p = 0.005), and HLA-DRB1*13 (p < 0.001) were protective against ESRD (OR < 1); and the three-locus haplotype HLA-A*02-B*41-DRB1*03, containing one susceptible allele, was strongly associated with ESRD (p < 0.001, OR = 3.15). In conclusion, this retrospective analysis of HLA typing in patients with ESRD of various etiologies suggests that molecular data on the HLA polymorphism should be collected in order to identify high-risk ESRD patients and to improve graft survival after kidney transplantation.


Assuntos
Antígenos de Histocompatibilidade , Falência Renal Crônica , Humanos , Romênia , Cadeias HLA-DRB1/genética , Estudos Retrospectivos , Antígenos HLA/genética , Falência Renal Crônica/genética
7.
HIV Med ; 24(11): 1158-1163, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37487714

RESUMO

OBJECTIVES: Our objectives were to investigate the characteristics of people living with HIV who presented with new or recurrent symptoms in the context of re-emergence of cerebrospinal fluid HIV RNA escape after antiretroviral therapy (ART) modification (termed relapse of CSF HIV RNA escape). METHODS: People living with HIV-1 with known CSF HIV RNA escape were identified, with clinical and laboratory data obtained from records in a tertiary centre. CSF HIV RNA escape was defined as quantifiable CSF HIV RNA in the presence of unquantifiable plasma HIV-RNA or CSF HIV RNA greater than plasma HIV RNA in cases where plasma HIV-RNA was quantifiable. Relapse was defined as a re-emergence of CSF HIV RNA escape with new symptoms after ART therapy intensification post-initial CSF HIV RNA escape. RESULTS: Among 40 people living with HIV who presented with neurosymptomatic CSF HIV RNA, eight (20%) presented with a relapse of CSF HIV RNA escape. Symptoms on relapse included confusion (n = 2), cognitive decline (n = 2), cerebellar dysfunction (n = 2) and worsening of pre-existing seizures (n = 1). Prior to their relapse, three people underwent drug therapy modification, with two people stopping raltegravir intensification, and one person switched from tenofovir alafenamide, emtricitabine and raltegravir for a new regimen. CONCLUSIONS: People with a relapse of CSF HIV RNA escape within this cohort presented with varied symptoms similar to their initial CSF HIV RNA escape. Clinicians should be vigilant of relapse of symptoms, particularly when simplifying ART regimens in people with CSF HIV RNA escape.


Assuntos
Infecções por HIV , Soropositividade para HIV , Humanos , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Raltegravir Potássico/uso terapêutico , RNA Viral , Soropositividade para HIV/tratamento farmacológico , Antirretrovirais/uso terapêutico , Líquido Cefalorraquidiano , Carga Viral
8.
Mult Scler Relat Disord ; 63: 103894, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35636271

RESUMO

BACKGROUND: Clinical trial populations do not fully reflect routine practice. The power of routinely collected data to inform clinical practice is increasingly recognised. METHODS: The OPTIMISE:MS pharmacovigilance study is a prospective, pragmatic observational study, conducted across 13 UK MS centres. Data were collected at the time of routine clinical visits. The first participant was recruited on 24th May 2019; data were extracted on 11th November 2021. RESULTS: 2112 participants were included (median age 44.0 years; 1570 (72%) female; 1981 (94%) relapsing-remitting MS). 639 (30%) were untreated at study entry, 205 (10%) taking interferon beta/copaxone, 1004 (47%) second/third generation DMT first line and 264 (13%) had escalated from a platform DMT. 342 clinical events were reported, of which 108 infections. There was an increased risk of adverse events in people taking second/third generation DMT (RR 3.45, 95%CI 1.57-7.60, p<0.01 vs no DMT). Unadjusted Poisson regression demonstrated increased incident adverse events in people taking natalizumab (IRR 5.28, 95%CI 1.41-19.74, p<0.05), ocrelizumab (IRR 3.24, 95%CI 1.22-8.62, p<0.05), and GA biosimilar (Brabio) (IRR 4.89, 95%CI 1.31-18.21, p<0.05) vs no DMT. CONCLUSIONS: Routinely collected healthcare data can be used to evaluate DMT safety in people with MS. These data highlight the potential of pragmatic studies to guide understanding of risks and benefits associated with DMT.


Assuntos
Esclerose Múltipla Recidivante-Remitente , Esclerose Múltipla , Adulto , Estudos de Viabilidade , Feminino , Humanos , Imunossupressores/uso terapêutico , Masculino , Esclerose Múltipla/tratamento farmacológico , Esclerose Múltipla Recidivante-Remitente/induzido quimicamente , Esclerose Múltipla Recidivante-Remitente/tratamento farmacológico , Farmacovigilância , Estudos Prospectivos
9.
Int J Mol Sci ; 23(5)2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-35269870

RESUMO

Recent knowledge concerning the role of non-coding RNAs (ncRNAs) in myocardial ischemia/reperfusion (I/R) injury provides new insight into their possible roles as specific biomarkers for early diagnosis, prognosis, and treatment. MicroRNAs (miRNAs) have fewer than 200 nucleotides, while long ncRNAs (lncRNAs) have more than 200 nucleotides. The three types of ncRNAs (miRNAs, lncRNAs, and circRNAs) act as signaling molecules strongly involved in cardiovascular disorders (CVD). I/R injury of the heart is the main CVD correlated with acute myocardial infarction (AMI), cardiac surgery, and transplantation. The expression levels of many ncRNAs and miRNAs are highly modified in the plasma of MI patients, and thus they have the potential to diagnose and treat MI. Cardiomyocyte and endothelial cell death is the major trigger for myocardial ischemia-reperfusion syndrome (MIRS). The cardioprotective effect of inflammasome activation in MIRS and the therapeutics targeting the reparative response could prevent progressive post-infarction heart failure. Moreover, the pharmacological and genetic modulation of these ncRNAs has the therapeutic potential to improve clinical outcomes in AMI patients.


Assuntos
MicroRNAs , Infarto do Miocárdio , Traumatismo por Reperfusão Miocárdica , RNA Longo não Codificante , Humanos , MicroRNAs/metabolismo , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/genética , Infarto do Miocárdio/terapia , Traumatismo por Reperfusão Miocárdica/diagnóstico , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Nucleotídeos , RNA Longo não Codificante/genética , RNA não Traduzido/genética , RNA não Traduzido/metabolismo
10.
Brain Behav Immun Health ; 21: 100425, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35156065

RESUMO

BACKGROUND: Cognitive manifestations associated with Severe Acute Respiratory Syndrome by Coronavirus 2 (SARS-CoV-2) are yet to be described in the existing literature. The aim of this exploratory study is to analyze the impact of severe SARS-CoV-2 infection on neuropsychological performance 6 months following hospital discharge, and to identify which medical variables predict worse outcome. In this context, we study if cognitive reserve (CR) may play a protective role on cognitive impairment. METHODS: We enrolled a cohort of 102 severe SARS-CoV-2 survivors who had been admitted to the Intensive Care Unit (ICU) and were contacted 6-months post discharge. A total of 58 agreed to participate in this 6-month follow-up study. Patients with previously known cognitive impairment were excluded. Demographic, clinical and laboratory data were collected. Firstly, to test the magnitude of neurocognitive sequalae two standard deviations below normative group were considered. Secondly, to analyze the main effects of medical variables on cognition and the interaction with cognitive reserve, ANCOVA analyses were performed. RESULTS: 53.4% obtained a score below the cutoff point (<26) in the screening test MOCA. ICU variables including mechanical ventilation, days of sedation or high CRP days were related with cognition. Cognitive Reserve (CR) interacted with delirium (F â€‹= â€‹6.8, p â€‹= â€‹0.01) and sedation days (F â€‹= â€‹9.40, p â€‹= â€‹0.003) to predict verbal memory and interacted with high CRP to predict phonemic fluency (F â€‹= â€‹6.47, p â€‹= â€‹0.01). Finally, no differences in neuropsychological performance were found depending on subjective cognitive impairment (SCI). However, patients with SCI had a higher score in the HAD anxiety subscale (t â€‹= â€‹-2.2; p â€‹< â€‹0.05). CONCLUSIONS: In our cohort, cognitive dysfunction was related with ICU variables such as delirium, mechanical ventilation, and inflammation. CR modulated the impact of these variables on cognition. Cognitive complaints were related with anxiety but not with cognitive performance. Despite some limitations, including the need of replication of the findings with larger samples and control groups, our study suggests that high CR may be protective for severe COVID-19-related cognitive impairment.

11.
Mult Scler Relat Disord ; 57: 103409, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34871856

RESUMO

BACKGROUND: In multiple sclerosis (MS) neurofilament light chain (NfL) is a marker of neuronal damage secondary to inflammation and neurodegeneration. NfL levels drop after commencement of disease-modifying treatment, especially the highly active ones. However, the factors that influence this drop are unknown. OBJECTIVE: To examine the patient and treatment-related factors that influence CSF NfL before and after starting treatment. METHODS: Eligible patients across two centres with two CSF NfL measurements, clinical and MRI data were included as part of an observational cohort study. RESULTS: Data were available in 61 patients, of which 40 were untreated at the first CSF sampling (T1) and treated at the second (T2; mean T1-T2: 19 months). CSF NfL reduction correlated with age (beta = 1.24 95%CI(1.07,1.43); R2 = 0.17; p = 0.005), Expanded Disability Status Scale (EDSS) (beta = 1.12 95%CI(1.00,1.25); R2 = 0.21; p = 0.05) and the type of MS (beta = 0.63 95%CI(0.43, 0.92); R2 = 0.12; p = 0.018; reference=relapsing MS). The treatment effect on a baseline NfL of 702 pg/mL was 451 pg/ml 95%CI(374,509) in a 30-year-old versus 228 pg/ml 95%CI(63,350) in a 60-year-old. There was no association in CSF NfL reduction with BMI, disease duration or sex. In cladribine- and alemtuzumab-treated patients, the CSF NfL T2/T1 ratio did not correlate with lymphocyte depletion rate at 23 weeks. CONCLUSIONS: In this observational study, we found that factors reflecting early disease stage, including a younger age, lower disability and relapsing MS were associated with treatment response in CSF NfL. Other factors were not found to be related, including lymphopaenia in highly-active treatments.


Assuntos
Esclerose Múltipla , Adulto , Biomarcadores , Estudos de Coortes , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Esclerose Múltipla/diagnóstico por imagem , Esclerose Múltipla/tratamento farmacológico , Neurônios
12.
Brain ; 145(4): 1368-1378, 2022 05 24.
Artigo em Inglês | MEDLINE | ID: mdl-34623418

RESUMO

The negative impact of smoking in multiple sclerosis is well established; however, there is much less evidence as to whether smoking cessation is beneficial to progression in multiple sclerosis. Adults with multiple sclerosis registered on the United Kingdom Multiple Sclerosis Register (2011-20) formed this retrospective and prospective cohort study. Primary outcomes were changes in three patient-reported outcomes: normalized Multiple Sclerosis Physical Impact Scale (MSIS-29-Phys), normalized Multiple Sclerosis Walking Scale (MSWS-12) and the Hospital Anxiety and Depression Scale (HADS). Time to event outcomes were clinically significant increases in the patient-reported outcomes. The study included 7983 participants; 4130 (51.7%) of these had ever smoked, of whom 1315 (16.5%) were current smokers and 2815/4130 (68.2%) were former smokers. For all patient-reported outcomes, current smokers at the time of completing their first questionnaire had higher patient-reported outcomes scores indicating higher disability compared to those who had never smoked (∼10 points difference in MSIS-29-Phys and MSWS-12; 1.5-1.8 points for HADS-Anxiety and HADS-Depression). There was no improvement in patient-reported outcomes scores with increasing time since quitting in former smokers. Nine hundred and twenty-three participants formed the prospective parallel group, which demonstrated that MSIS-29-Phys [median (IQR) 5.03 (3.71, 6.34)], MSWS-12 [median (IQR) 5.28 (3.62, 6.94)] and HADS-Depression [median (IQR) 0.71 (0.47, 0.96)] scores worsened over a period of 4 years, whereas HADS-Anxiety remained stable. Smoking status was significant at Year 4; current smokers had higher MSIS-29-Phys and HADS-Anxiety scores [median (IQR) 3.05 (0.22, 5.88) and 1.14 (0.52, 1.76), respectively] while former smokers had a lower MSIS-29-Phys score of -2.91 (-5.03, -0.79). A total of 4642 participants comprised the time to event analysis. Still smoking was associated with a shorter time to worsening event in all patient-reported outcomes (MSIS-29-Phys: n = 4436, P = 0.0013; MSWS-12: n = 3902, P = 0.0061; HADS-Anxiety: n = 4511, P = 0.0017; HADS-Depression: n = 4511, P < 0.0001). Worsening in motor disability (MSIS-29-Phys and MSWS-12) was independent of baseline HADS-Anxiety and HADS-Depression scores. There was no statistically significant difference in the rate of worsening between never and former smokers. When smokers quit, there is a slowing in the rate of motor disability deterioration so that it matches the rate of motor decline in those who have never smoked. This suggests that smoking cessation is beneficial for people with multiple sclerosis.


Assuntos
Pessoas com Deficiência , Transtornos Motores , Esclerose Múltipla , Abandono do Hábito de Fumar , Adulto , Progressão da Doença , Humanos , Esclerose Múltipla/complicações , Estudos Prospectivos , Estudos Retrospectivos
13.
BMJ Open ; 11(11): e050176, 2021 11 25.
Artigo em Inglês | MEDLINE | ID: mdl-34824113

RESUMO

INTRODUCTION: The power of 'real world' data to improve our understanding of the clinical aspects of multiple sclerosis (MS) is starting to be realised. Disease modifying therapy (DMT) use across the UK is driven by national prescribing guidelines. As such, the UK provides an ideal country in which to gather MS outcomes data. A rigorously conducted observational study with a focus on pharmacovigilance has the potential to provide important data to inform clinicians and patients while testing the reliability of estimates from pivotal trials when applied to patients in the UK. METHODS AND ANALYSIS: The primary aim of this study is to characterise the incidence and compare the risk of serious adverse events in people with MS treated with DMTs. The OPTIMISE:MS database enables electronic data capture and secure data transfer. Selected clinical data, clinical histories and patient-reported outcomes are collected in a harmonised fashion across sites at the time of routine clinical visits. The first patient was recruited to the study on 24 May 2019. As of January 2021, 1615 individuals have baseline data recorded; follow-up data are being captured and will be reported in due course. ETHICS AND DISSEMINATION: This study has ethical permission (London City and East; Ref 19/LO/0064). Potential concerns around data storage and sharing are mitigated by the separation of identifiable data from all other clinical data, and limiting access to any identifiable data. The results of this study will be disseminated via publication. Participants provide consent for anonymised data to be shared for further research use, further enhancing the value of the study.


Assuntos
Esclerose Múltipla , Farmacovigilância , Humanos , Esclerose Múltipla/tratamento farmacológico , Estudos Prospectivos , Reprodutibilidade dos Testes
14.
Mult Scler Relat Disord ; 56: 103284, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34624642

RESUMO

BACKGROUND: Antigen-specific tolerance in auto-immune diseases is the goal for effective treatment with minimal side-effects. Whilst this is achievable in animal models, notably via intravenous delivery of the model-specific autoantigen following transient CD4 T cell depletion, specific multiple sclerosis autoantigens remain unproven. However, anti-drug antibodies to human therapeutic proteins represent a model human autoimmune condition, which may be used to examine immune-tolerance induction. Some people with MS (PwMS) on interferon-beta1a (IFNß1a) develop neutralizing antibodies to IFNß1a that do not disappear in repeated tests over years. METHODS: One PwMS was recruited, as part of a planned phase IIa trial (n = 15), who had developed neutralizing antibodies to subcutaneous IFNß1a. Mitoxantrone (12 mg/m2) was administered as a lymphocyte depleting agent followed by four days of (88 µg/day + three 132 µg/day) intravenous IFNß1a. Subcutaneous IFNß1a three times a week was maintained during follow-up. IFNß1a neutralizing antibody responses in serum were measured during treatment and three-monthly for 12 months. FINDINGS: One participant was recruited and, within 6 months of tolerization, the neutralizing antibodies were undetectable. The tolerization treatment was well tolerated. However, the study was terminated after the first enrolment, on ethical grounds, as treatment alternatives became available and the potential risks of mitoxantrone use increased. INTERPRETATION: The data suggest that it may be possible to induce antigen-specific tolerance by providing tolerogenic antigen following transient immune depletion. Further studies are warranted. FUNDING: The study was supported by an unrestricted research grant from Merck-Serono.


Assuntos
Esclerose Múltipla , Anticorpos , Autoimunidade , Humanos , Interferon beta-1a , Mitoxantrona , Esclerose Múltipla/tratamento farmacológico
15.
Brain Sci ; 11(7)2021 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-34209758

RESUMO

Stroke occurrence is not randomly distributed over time but has circadian rhythmicity with the highest frequency of onset in the morning hours. This specific temporal pattern is valid for all subtypes of cerebral infarction and intracerebral hemorrhage. It also correlates with the circadian variation of some exogenous factors such as orthostatic changes, physical activity, sleep-awake cycle, as well as with endogenous factors including dipping patterns of blood pressure, or morning prothrombotic and hypofibrinolytic states with underlying cyclic changes in the autonomous system and humoral activity. Since the internal clock is responsible for these circadian biological changes, its disruption may increase the risk of stroke occurrence and influence neuronal susceptibility to injury and neurorehabilitation. This review aims to summarize the literature data on the circadian variation of cerebrovascular events according to physiological, cellular, and molecular circadian changes, to survey the available information on the chronotherapy and chronoprophylaxis of stroke and its risk factors, as well as to discuss the less reviewed impact of the circadian rhythm in stroke onset on patient outcome and functional status after stroke.

16.
AIDS ; 35(14): 2341-2346, 2021 11 15.
Artigo em Inglês | MEDLINE | ID: mdl-34127578

RESUMO

OBJECTIVE: To characterize the clinical, laboratory and radiological characteristics of persons with HIV (PWH) presenting with cerebrospinal fluid (CSF) HIV RNA escape. DESIGN: Retrospective case review of PWH presenting with symptomatic CSF HIV RNA escape at seven tertiary HIV clinical sites in the United Kingdom and Italy. METHOD: PWH with symptomatic CSF HIV RNA escape episodes were identified and data obtained from medical records. CSF HIV RNA escape was defined as quantifiable CSF HIV RNA in unquantifiable plasma HIV RNA or CSF HIV RNA greater than plasma HIV RNA in cases where plasma HIV RNA was quantifiable. The onset of clinical symptoms was classified as acute (<2 weeks-6 months), or chronic (>6 months) and differences in presentation in those with CSF HIV RNA below and above 1000 copies/ml determined. RESULTS: We identified 106 PWH with CSF HIV RNA escape (65 male); 68 (64%) PWH had acute presentations and 38 (36%) had chronic presentations. Cognitive decline (n = 54; 50.9%), confusion (n = 20; 18.9%) and headache (n = 28; 26.4%) were the most common presentations, with cognitive decline being more common in PWH who presented chronically compared with PWH who presented acutely (73.7% vs. 35.3%, P = 0.0002). Sixty PWH had CSF HIV RNA at least 1000 copies/ml and presented more frequently with confusion (n = 15/60; 25.0%) compared with PWH with CSF HIV RNA less than 1000 copies/ml at presentation (n = 5/46; 10.9%; P = 0.03). CONCLUSION: Cognitive decline, confusion and headache are the most frequent presenting symptoms of CSF HIV RNA escape and their relative frequency varied according to symptom onset and CSF HIV RNA concentration.


Assuntos
Infecções por HIV , HIV-1 , Líquido Cefalorraquidiano , Infecções por HIV/complicações , HIV-1/genética , Humanos , Masculino , RNA Viral , Estudos Retrospectivos , Carga Viral
17.
Brain Sci ; 11(5)2021 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-33946687

RESUMO

Music has been proven to have therapeutic potential in neurological disorders, especially Parkinson's disease (PD), since rhythmic auditory cueing can partially replace the progressive loss of rhythmicity and automaticity. Several reports have highlighted improvements in motor outcomes in PD patients undergoing music therapy, but only a few studies have evaluated non-motor outcomes, such as quality of life (QoL), which deteriorates with disease progression. The current pilot study aims to examine the effects of a multimodal rehabilitation program centered on physical therapy combined with listening to music on self-reported QoL in people with PD, compared to the same rehabilitation program alone. The study was conducted on patients with idiopathic PD who attended a specific rehabilitation program with a duration of 2.5 h daily for 14 days. The patients were divided into the study group (16 patients), who listened to background music during the rehabilitation program sessions, and the control group who did not listen to music during sessions. The patients were assessed using the self-report Parkinson's Disease Questionnaire (PDQ-39) at the beginning of the program and 1 month after its initiation. The patients in the study group registered greater improvements in five of the eight areas of life assessed by PDQ-39 compared to the control group. In conclusion, listening to music combined with a multimodal rehabilitation program centered on physical therapy may be beneficial for the patients' quality of life.

18.
PLoS One ; 16(4): e0248922, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33909622

RESUMO

Colorectal cancer remains one of the most frequent malignancies (third place at both genders) worldwide in the last decade, owing to significant changes in modern dietary habits. Approximately half of the patients develop metastases during the course of their disease. The available therapeutic armamentarium is constantly evolving, raising questions regarding the best approach for improving survival. Bevacizumab remains one of the most widely used therapies for treating metastatic colorectal cancer and can be used after progression. This study aimed to identify the best chemotherapy partner for bevacizumab after progression. We performed a retrospective analysis of patients with metastatic colorectal cancer who were treated with bevacizumab as first- and second-line chemotherapy. Data were collected for 151 patients, 40 of whom were treated with double-dose bevacizumab after the first progression. The two standard chemotherapy regimens combined with bevacizumab were FOLFIRI/CAPIRI and FOLFOX4/CAPEOX. The initiation of first-line treatment with irinotecan-based chemotherapy improved progression-free survival and time to treatment failure but not overall survival. After the first progression, retreatment with the same regimen as that used in the induction phase was the best approach for improving overall survival (median overall survival: 46.5 vs. 27.0 months for the same vs. switched strategy, respectively). No correlations were observed between the dose intensity of irinotecan, oxaliplatin, 5-fluorouracil, or bevacizumab and the overall survival, progression-free survival in the first-/second-line treatment, and time to treatment failure. Interaction between an irinotecan-based regimen as a second-line treatment and double-dose bevacizumab after progression was associated with an improved overall survival (p = 0.06). Initiating systemic treatment with an irinotecan-based regimen in combination with bevacizumab improved the progression-free survival in the first-line treatment and time to treatment failure. In terms of overall survival, bevacizumab treatment after the first progression is better partnered with the same regimen as that used in the induction phase.


Assuntos
Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bevacizumab/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Irinotecano/uso terapêutico , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Estudos Retrospectivos , Adulto Jovem
19.
Front Pharmacol ; 12: 487316, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33776758

RESUMO

Background: Colorectal cancer (CRC) is the third most common cancer in Europe, with an annual increase in incidence ranging between 0.4 and 3.6% in various countries. Although the development of CRC was extensively studied, limited number of new therapies were developed in the last few years. Bevacizumab is frequently used as first- and second-line therapy for management of metastatic CRC (mCRC). The aim of this study is to present our experience with using bevacizumab beyond disease progression at different dosage levels in mCRC patients, in terms of overall survival, progression-free survival, time to treatment failure, and toxicities. Methods: We performed a consecutive retrospective analysis of patients with confirmed mCRC who were treated with bevacizumab at "Prof Dr. Ion Chiricuta" Institute of Oncology, Cluj-Napoca, Romania. We included patients who had received bevacizumab as first- or second-line therapy and further stratified them according to the dose administered as a second-line (either standard dose of 5 mg/kg every 2 weeks or 7.5 mg/kg every 3 weeks, or double dose of 10 mg/kg every 2 weeks or 15 mg/kg every 3 weeks-depending on the classical chemotherapy partner). All patients had received bevacizumab beyond progression (BYP) which is defined as continuing bevacizumab administration through second-line treatment despite disease progression. In each group, we evaluated the prognostic factors that influenced survival and treatment outcome. Results: One hundred and fifty-one (151) patients were included in the study. Themedian age of patients receiving double dose bevacizumab (DDB) and standard dose bevacizumab (SDB) was 58 years (range 41-71) and 57 years (range 19-75), respectively. The median overall survival in the DDB group was 41 months (range 27-49) compared to 25 months (range 23-29) in the SDB group (p = 0.01 log-rank test). First-line oxaliplatin-based treatment was used more frequently regardless of group, while irinotecan-based more frequently used as a second-line treatment (p = 0.014). Both oxaliplatin- and irinotecan-based regimens were found to be suitable partners for BYP. Statistical analysis revealed that dose intensity, primary tumor location, and cumulative exposure to BYP had significant influence on survival. Conclusion: Doubling the dose of bevacizumab after first progression may improve survival in mCRC patients. Increasing bevacizumab dose intensity could override the prognostic impact of primary tumor location in patients receiving double the dose of bevacizumab after first disease progression.

20.
Ther Adv Neurol Disord ; 14: 17562864211057661, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35173808

RESUMO

OBJECTIVE: To report on safety and effectiveness of subcutaneous cladribine (Litak®) in multiple sclerosis (MS) patients. METHODS: Litak® was offered to MS-patients irrespective of disease course. Litak® 10 mg was administered for 3-4 days during week 1. Based on lymphocyte count at week 4, patients received another 0-3 doses at week 5. A second course was administered 11 months later. Follow-up included adverse events, relapses, expanded disability status scale (EDSS), 9-hole-peg and Timed-25-foot-walking tests, no-evidence-of-disease-activity (NEDA), no-evidence-of-progression-or-active-disease (NEPAD), MRI, cerebrospinal fluid (CSF) neurofilament light chain (NfL), and lymphocyte counts. RESULTS: In all, 208 patients received at least one course of treatment. Age at baseline was 44 (17-72) years and EDSS 0-8.5. Cladribine was generally well tolerated. One myocardial infarction, one breast cancer, and three severe skin reactions occurred without long-term sequelae. Two patients died (one pneumonia, one encephalitis). Lymphopenia grade 3 occurred in 5% and grade 4 in 0.5%. In 94 out of 116 pwMS with baseline and follow-up (BaFU) data after two treatment courses, EDSS remained stable or improved. At 18 months, 64% of patients with relapsing MS and BaFU data (n = 39) had NEDA. At 19 months, 62% of patients with progressive MS and BaFU data (n = 13) had NEPAD. Of n = 13 patients whose CSF-NfL at baseline was elevated, 77% were normalised within 12 months. CONCLUSIONS: Litak® was well tolerated. Effectiveness in relapsing MS appeared similar to cladribine tablets and was encouraging in progressive MS. Our data suggest cladribine may be safe and effective in MS-patients irrespective of their disease stage.

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