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1.
Value Health ; 2024 Jul 31.
Artículo en Inglés | MEDLINE | ID: mdl-39094685

RESUMEN

OBJECTIVES: Acute respiratory tract infections (ARTIs) are a heterogenous group of diseases. Often, it is difficult to obtain a precise diagnosis in general practice but also difficult to determine when the patient is recovered. The lack of a precise definition of recovery after ARTI complicates scientific research aiming to optimize diagnostics and compare treatments. The study aimed to define cutoff points to determine the end of an ARTI as a proxy for recovery in patients diagnosed with ARTI in general practice using a validated patient-reported outcome instrument; The ARTI Questionnaire (ARTIQ). METHODS: A total of 259 participants was divided in 2 groups-1 with ARTI and 1 without. Histograms and area under the curve were calculated for each of the 5 dimensions within the ARTIQ to evaluate the discriminative effect. For the most discriminative dimensions receiver operating comparison curves were performed to determine relevant cutoff points for having or not having ARTI symptoms and serve as a proxy for recovery in clinical research. RESULTS: The highest discriminative effect was found in 2 dimensions: "physical-upper airways" and "physical-lower airways." When combining these dimensions, the area under the curve was 0.97. Sensitivity, specificity, and predictive values were calculated for selected cutoff points. CONCLUSION: Cutoff points serving as proxy for recovery from ARTI using a patient-reported outcome were identified. The specific cutoff point for a certain research project must be selected considering the specific clinical situation of interest.

2.
Artículo en Inglés | MEDLINE | ID: mdl-39122660

RESUMEN

AIMS: Following implantation of an implantable cardioverter defibrillator (ICD), patients are temporarily restricted from private motor vehicle driving and permanently prohibited from professional driving. We aimed to investigate the impact of driving restrictions following ICD implantation and in case of ICD shock on employment, daily living activities, driving concerns and driving behavior. METHODS AND RESULTS: Data were retrieved from a nationwide survey on driving restrictions in Danish ICD patients, distributed in 2017 to all patients ≥18 years implanted with a first-time ICD from 2013-2016 (n=3913). Responses were linked with data from nationwide registers. The response rate was 71% (final analyzable population n=2741, 83% male, median age 67 years, 316 had experienced an ICD shock, and 911 patients reported receipt of driving restrictions of minimum 1 month). Among active professional drivers (n=175), 33% had lost their job as a direct consequence of the driving restrictions. Of those working prior to ICD implantation (n=465), 47% reported being limited in maintaining employment due to private driving restrictions. Among those restricted from driving minimum 1 month, 26% reported the restrictions overall had substantially impeded their daily living. Factors associated with substantial impediment were age <65 years (OR 1.84 [95% CI 1.35-2.52]), higher income (OR 1.47 [95% CI 1.05-2.05]) and driving ≥7 hours/week pre-implantation (OR 1.66 [95% CI 1.23-2.24]). Being nervous about driving or altering driving habits was reported by 3-7%. CONCLUSION: Both professional and private driving restrictions affect the ability to maintain employment and have a negative impact on ICD recipients' daily living activities.

3.
J Am Coll Cardiol ; 83(25): 2615-2625, 2024 Jun 25.
Artículo en Inglés | MEDLINE | ID: mdl-38897670

RESUMEN

BACKGROUND: ST-segment elevation myocardial infarction (STEMI) is associated with high early mortality. However, it remains unclear if patients surviving the early phase have long-term excess mortality. OBJECTIVES: This study aims to assess excess mortality in STEMI patients treated with primary percutaneous coronary intervention (PCI) compared with an age- and- sex-matched general population at landmark periods 0 to 30 days, 31 to 90 days, and 91 days to 10 years. METHODS: Using the Western Denmark Heart Registry, we identified first-time PCI-treated patients who had primary PCI for STEMI from January 2003 to October 2018. Each patient was matched by age and sex to 5 individuals from the general population. RESULTS: We included 18,818 patients with first-time STEMI and 94,090 individuals from the general population. Baseline comorbidity burden was similar in STEMI patients and matched individuals. Compared with the matched individuals, STEMI was associated with a 5.9% excess mortality from 0 to 30 days (6.0% vs 0.2%; HR: 36.44; 95% CI: 30.86-43.04). An excess mortality remained present from 31 to 90 days (0.9% vs 0.4%; HR: 2.43; 95% CI: 2.02-2.93). However, in 90-day STEMI survivors, the absolute excess mortality was only 2.1 percentage points at 10-year follow-up (26.5% vs 24.5%; HR: 1.04; 95% CI: 1.01-1.08). Use of secondary preventive medications such as statins, antiplatelet therapy, and beta-blockers was very high in STEMI patients throughout 10-year follow-up. CONCLUSIONS: In primary PCI-treated STEMI patients with high use of guideline-recommended therapy, patients surviving the first 90 days had 10-year mortality that was only 2% higher than that of a matched general population.


Asunto(s)
Intervención Coronaria Percutánea , Sistema de Registros , Infarto del Miocardio con Elevación del ST , Humanos , Infarto del Miocardio con Elevación del ST/mortalidad , Infarto del Miocardio con Elevación del ST/terapia , Masculino , Femenino , Intervención Coronaria Percutánea/estadística & datos numéricos , Anciano , Persona de Mediana Edad , Dinamarca/epidemiología , Factores de Tiempo , Tasa de Supervivencia/tendencias , Estudios de Seguimiento , Mortalidad/tendencias
4.
Mult Scler Relat Disord ; 88: 105701, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38889559

RESUMEN

BACKGROUND: Neurofilament light chain (NFL) is a biomarker for monitoring disease activity and treatment response in multiple sclerosis (MS). However, while most agree that NFL levels predict disease activity and worsening, the predictive value of NFL on future relapse risk remains uncertain. OBJECTIVE: The primary aim was to evaluate the predictive value of age-corrected serum NFL (sNFL) ratio on relapse risk in highly active relapsing-remitting MS patients (RRMS) treated with natalizumab. A secondary aim was to investigate the predictive value of sNFL ratios for MRI activity. METHODS: From January 1, 2006, to December 31, 2010, 355 patients initiated natalizumab treatment at the Danish Multiple Sclerosis Center. 305 patients were anti-natalizumab antibodies negative and had at least one blood sample available for sNFL analysis using single molecule array analysis at baseline, three, six, or 12 months. The patients were either treatment-naïve (n = 8), switching from interferon-ß or glatiramer acetate (n = 253), or switching from mitoxantrone (n = 44). An age-corrected ratio was calculated for sNFL. Time to first relapse was calculated from baseline and after re-baseline at 90 days. Data were collected from baseline until the two-year follow-up or end of treatment and included disease duration, expanded disability status scale, previous treatments, relapses 12 months prior to natalizumab initiation, smoking intensity, body mass index, and body weight. In addition, the patients underwent annual MRI of the brain. RESULTS: The sNFL ratio was increased in 173 of 287 samples (60.3 %) at baseline, in 119 of 246 samples (48.8 %) at month three, in 109 of 287 samples (38.0 %) at month six, and in 82 of 270 samples (30.4 %) at month 12. The sNFL ratio continuously declined over 12 months with significant decreases for every measuring timepoint: baseline vs. three months p = 3.0 × 10-6; three months vs. six months p = 3.2 × 10-5; six months vs. 12 months p = 0.002. Univariate Cox regression analysis showed that time to first relapse from 1) natalizumab initiation and from 2) re-baseline was associated with the number of relapses in the previous 12 months (hazard ratio 1.31 per relapse, 95 % CI = 1.2-1.5, p = 2.0 × 10-6; and 1.21 per relapse, 95 % CI = 1.1-1.4, p = 0.002, respectively). sNFL ratio at re-baseline was negatively associated with relapse risk (hazard ratio 0.82 per unit; 95 % CI = 0.7-1.0; p = 0.049). A multivariable Cox regression analysis of relapse risk from re-baseline showed that the number of relapses in the 12 months prior to natalizumab treatment (hazard ratio 1.29; 95 % CI = 1.1-1.5; p = 6.0 × 10-4) and smoking (hazard ratio 1.51 per 20 cigarettes per day; 95 % CI = 1.0-2.2; p = 0.030) were associated with increased risk of relapse; sNFL ratio was associated with a lower risk of relapse (hazard ratio = 0.736 per unit; 95 % CI = 0.6-0.9 p = 0.007). In univariate logistic regression analyses, the sNFL ratio at 12 months and values above the 75th and the 90th percentile predicted MRI activity in the following year (odds ratio [OR] = 2.0, 95 % CI = 1.2-3.6, p = 0.012; OR = 2.2, 95 % CI = 1.2-4.1, p = 0.014; and OR = 2.8, 95 % CI = 1.1-6.7, p = 0.026). CONCLUSION: In this highly active RRMS cohort, high sNFL ratios reflected previous relapse activity and decreased after initiation of treatment but were not associated with increased relapse risk in the following two years. Pre-treatment relapses and smoking on treatment were predictors of relapse risk after re-baselining at 90 days. MRI activity in year two was predicted by sNFL ratios at month 12.


Asunto(s)
Factores Inmunológicos , Imagen por Resonancia Magnética , Esclerosis Múltiple Recurrente-Remitente , Natalizumab , Proteínas de Neurofilamentos , Recurrencia , Humanos , Natalizumab/administración & dosificación , Natalizumab/farmacología , Proteínas de Neurofilamentos/sangre , Femenino , Masculino , Adulto , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Esclerosis Múltiple Recurrente-Remitente/diagnóstico por imagen , Esclerosis Múltiple Recurrente-Remitente/sangre , Factores Inmunológicos/administración & dosificación , Factores Inmunológicos/farmacología , Biomarcadores/sangre , Persona de Mediana Edad
5.
Sci Adv ; 10(21): eadn5390, 2024 May 24.
Artículo en Inglés | MEDLINE | ID: mdl-38787941

RESUMEN

Accurately estimating population sizes for free-ranging animals through noninvasive methods, such as camera trap images, remains particularly limited by small datasets. To overcome this, we developed a flexible model for estimating upper limit populations and exemplified it by studying a group-living synanthrope, the long-tailed macaque (Macaca fascicularis). Habitat preference maps, based on environmental and GPS data, were generated with a maximum entropy model and combined with data obtained from camera traps, line transect distance sampling, and direct sightings to produce an expected number of individuals. The mapping between habitat preference and number of individuals was optimized through a tunable parameter ρ (inquisitiveness) that accounts for repeated observations of individuals. Benchmarking against published data highlights the high accuracy of the model. Overall, this approach combines citizen science with scientific observations and reveals the long-tailed macaque populations to be (up to 80%) smaller than expected. The model's flexibility makes it suitable for many species, providing a scalable, noninvasive tool for wildlife conservation.


Asunto(s)
Ecosistema , Macaca fascicularis , Animales , Densidad de Población , Conservación de los Recursos Naturales/métodos , Modelos Biológicos
6.
Artículo en Inglés | MEDLINE | ID: mdl-38695330

RESUMEN

AIM: This systematic review and meta-analysis sought i) to provide an overview of the incidence of delirium following open cardiac surgery and ii) to investigate how incidences of delirium are associated with different assessment tools. METHODS AND RESULTS: A systematic search of studies investigating delirium following open cardiac surgery were conducted in Medline (Ovid), EMBASE, PsycINFO, CiNAHL and the Cochrane Database. Only studies with patients diagnosed or screened with a validated tool were included. Studies published from 2005 to 2021 were included in the meta-analysis.Of 7,126 individual studies retrieved, 106 met the inclusion criteria for the meta-analysis, hereof 31% of high quality. The weighted pooled incidence of delirium following open cardiac surgery across all studies was 23% (95% CI 20-26%), however we found a considerable heterogeneity (I2 = 99%), which could not be explained by subgroups or further sensitivity analyses. The most commonly applied screening tool for delirium is CAM/CAM-ICU. The lowest estimates of delirium were found by applying the Delirium Observation Scale (incidence 14%, 95% CI 8-20%), and the highest estimates in studies using "other" screening tools (Organic Brain Symptom Scale, Delirium Symptom Interview) pooled incidence of 43%, (95% CI 19 - 66%), however, only two studies applied these. CONCLUSION: Delirium following open cardiac surgery remains a complication with a high incidence of overall 23%, when applying a validated tool for screening or diagnosis. Nevertheless, this systematic review and meta-analyses highlight the significant inconsistency in current evidence regarding assessment tools and regimens. REGISTRATION: Prospero CRD42020215519.

7.
Res Social Adm Pharm ; 20(8): 723-732, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38702286

RESUMEN

BACKGROUND: The daily work of community pharmacists includes dispensing antibiotics, but little is known about how this should be done to ensure quality use of antibiotics. OBJECTIVE: To define specific tasks of the community pharmacist when dispensing antibiotics and to assess to what extent these tasks can be implemented in practice in Europe. METHODS: A Delphi study with community pharmacist experts in the European Economic Area. Statements on potential tasks for pharmacists during the antibiotic dispensing process were based on a systematic literature review. Participants rated the statements for importance and feasibility of implementation in practice in 3 rounds on a scale from 1 to 9. Consensus of importance was defined as ≥ 80 % of experts rating a statement between 7 and 9. An online expert meeting was conducted between rounds 1 and 2. Scores for all statements were analysed descriptively. RESULTS: Overall, 38 experts from 21 countries participated in the study. Experts reached consensus on 108 statements within 5 themes: 1) collaboration with prescribers, 2) checking prescriptions and dispensing, 3) counselling, 4) education, and 5) pharmacy services. Potential tasks included advising and collaborating with prescribers, performing safety checks, and having access to specific prescription information. Additionally, pharmacists should counsel patients related to the dispensed antibiotic and on antimicrobial resistance and infectious diseases. With few exceptions, pharmacists should not dispense antibiotics without prescriptions or prescribe antibiotics. Consensus on feasibility of implementation was only reached for statements in the categories "counselling patients" and "education". Barriers to changing practice included structure of the healthcare system, resistance to change from prescribers or pharmacy staff, lack of time and finances, legal barriers, and patient expectations. CONCLUSION: Community pharmacists have an important role when dispensing antibiotics. This study provides important steps towards better community pharmacy antibiotic dispensing practices throughout the EEA.


Asunto(s)
Antibacterianos , Servicios Comunitarios de Farmacia , Técnica Delphi , Farmacéuticos , Rol Profesional , Humanos , Farmacéuticos/organización & administración , Antibacterianos/uso terapéutico , Antibacterianos/administración & dosificación , Servicios Comunitarios de Farmacia/organización & administración , Femenino , Europa (Continente) , Masculino , Persona de Mediana Edad , Adulto , Pautas de la Práctica Farmacéutica
8.
Trials ; 25(1): 298, 2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38698471

RESUMEN

BACKGROUND: The use of antibiotics is a key driver of antimicrobial resistance and is considered a major threat to global health. In Denmark, approximately 75% of antibiotic prescriptions are issued in general practice, with acute lower respiratory tract infections (LRTIs) being one of the most common indications. Adults who present to general practice with symptoms of acute LRTI often suffer from self-limiting viral infections. However, some patients have bacterial community-acquired pneumonia (CAP), a potential life-threatening infection, that requires immediate antibiotic treatment. Importantly, no single symptom or specific point-of-care test can be used to discriminate the various diagnoses, and diagnostic uncertainty often leads to (over)use of antibiotics. At present, general practitioners (GPs) lack tools to better identify those patients who will benefit from antibiotic treatment. The primary aim of the PLUS-FLUS trial is to determine whether adults who present with symptoms of an acute LRTI in general practice and who have FLUS performed in addition to usual care are treated less frequently with antibiotics than those who only receive usual care. METHODS: Adults (≥ 18 years) presenting to general practice with acute cough (< 21 days) and at least one other symptom of acute LRTI, where the GP suspects a bacterial CAP, will be invited to participate in this pragmatic randomized controlled trial. All participants will receive usual care. Subsequently, participants will be randomized to either the control group (usual care) or to an additional focused lung ultrasonography performed by the GP (+ FLUS). The primary outcome is the proportion of participants with antibiotics prescribed at the index consultation (day 0). Secondary outcomes include comparisons of the clinical course for participants in groups. DISCUSSION: We will examine whether adults who present with symptoms of acute LRTI in general practice, who have FLUS performed in addition to usual care, have antibiotics prescribed less frequently than those given usual care alone. It is highly important that a possible reduction in antibiotic prescriptions does not compromise patients' recovery or clinical course, which we will assess closely. TRIAL REGISTRATION: ClinicalTrials.gov NCT06210282. Registered on January 17, 2024.


Asunto(s)
Antibacterianos , Medicina General , Pulmón , Pautas de la Práctica en Medicina , Ensayos Clínicos Pragmáticos como Asunto , Infecciones del Sistema Respiratorio , Ultrasonografía , Humanos , Antibacterianos/uso terapéutico , Dinamarca , Infecciones del Sistema Respiratorio/tratamiento farmacológico , Infecciones del Sistema Respiratorio/diagnóstico por imagen , Infecciones del Sistema Respiratorio/microbiología , Pulmón/diagnóstico por imagen , Pulmón/microbiología , Enfermedad Aguda , Resultado del Tratamiento , Prescripciones de Medicamentos , Pruebas en el Punto de Atención , Adulto
9.
Clin Immunol ; 264: 110262, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38788886

RESUMEN

Follicular helper T (Tfh) cells and their interplay with B cells likely contribute to the pathogenesis of relapsing-remitting multiple sclerosis (RRMS). Tfh cells are enriched in cerebrospinal fluid (CSF) in RRMS, but effects of anti-CD20 therapy are unknown. We investigated Tfh cells in controls, untreated and anti-CD20-treated patients with RRMS using flow cytometry. CSF Tfh cells were increased in untreated patients. Compared to paired blood samples, CD25- Tfh cells were enriched in CSF in RRMS, but not in controls. Contrast-enhancing brain MRI lesions and IgG index correlated with CSF CD25- Tfh cell frequency in untreated patients with RRMS. Anti-CD20 therapy reduced the numbers of circulating PD1+ Tfh cells and CD25- Tfh cells, and the frequency of CSF CD25- Tfh cells. The study suggests that CD25- Tfh cells are recruited to the CSF in RRMS, associated with focal inflammation, and are reduced by anti-CD20 therapy.


Asunto(s)
Antígenos CD20 , Esclerosis Múltiple Recurrente-Remitente , Células T Auxiliares Foliculares , Humanos , Femenino , Adulto , Masculino , Esclerosis Múltiple Recurrente-Remitente/líquido cefalorraquídeo , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Esclerosis Múltiple Recurrente-Remitente/inmunología , Esclerosis Múltiple Recurrente-Remitente/sangre , Persona de Mediana Edad , Antígenos CD20/inmunología , Células T Auxiliares Foliculares/inmunología , Linfocitos T Colaboradores-Inductores/inmunología , Rituximab/uso terapéutico , Subgrupos de Linfocitos T/inmunología
11.
Eur J Prev Cardiol ; 31(10): 1238-1248, 2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-38513361

RESUMEN

AIMS: Assessment of residual cardiovascular risk in statin-treated patients with atherosclerotic cardiovascular disease (ASCVD) is pivotal for optimizing secondary preventive therapies. This study investigates if non-high-density lipoprotein cholesterol (non-HDL-C) is associated with residual ASCVD risk in statin-treated ischaemic heart disease (IHD) patients with and without diabetes. METHODS AND RESULTS: Using the Western Denmark Heart Registry, we identified statin-treated patients with IHD examined by coronary angiography (CAG) from 2011 to 2020. Non-HDL-C was assessed within 1 year after CAG. Outcomes were ASCVD (myocardial infarction, ischaemic stroke, and cardiovascular death) and all-cause death. Cox regression analyses obtained hazard ratios (HRs) adjusted for age, sex, smoking, and hypertension. A total of 42 057 patients were included: 8196 patients with diabetes and 33 861 without diabetes. During the median 4.6 years of follow-up, event rates per 1000 person-years of ASCVD were 28.8 (27.1-30.5) and 17.2 (16.5-17.8) among patients with and without diabetes. In patients with diabetes, the adjusted HRs of ASCVD as compared with non-HDL-C < 25th percentile were 1.0 (0.9-1.2), 1.3 (1.1-1.6), and 1.6 (1.2-2.1) for patients in the 25th-74th, 75th-94th, and ≥95th percentiles. In patients without diabetes, the corresponding adjusted HRs were 1.1 (0.9-1.1), 1.2 (1.1-1.4), and 1.7 (1.4-2.0). Results were consistent across sex, age, clinical presentation, and low-density lipoprotein cholesterol strata. CONCLUSION: In statin-treated IHD patients with and without diabetes, non-HDL-C, especially above the 75th percentile, is associated with residual cardiovascular risk. These results have implications for secondary prevention, targeting patients who may benefit most from intensified preventive therapy.


Relevant to individuals, both with and without diabetes, who receive cholesterol-lowering therapy due to ischaemic heart disease, having a high level of non-HDL cholesterol is associated with risk of heart attack, stroke, and death.In individuals with diabetes, having a high compared to a low non-HDL cholesterol level was associated with a 30­60% increased risk of heart attack, stroke, and death. For individuals without diabetes, the high non-HDL cholesterol level was linked to an increased risk by up to 70%.In clinical practice, calculation of non-HDL cholesterol, from the standard lipid profile with no inconvenience to the patient, offers a possibility to identify patients who face a high risk of heart attack, stroke, and death. Patients with high levels of non-HDL cholesterol may benefit from optimized preventive therapy.


Asunto(s)
Biomarcadores , Diabetes Mellitus , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Sistema de Registros , Humanos , Masculino , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Femenino , Dinamarca/epidemiología , Anciano , Persona de Mediana Edad , Diabetes Mellitus/sangre , Diabetes Mellitus/epidemiología , Diabetes Mellitus/tratamiento farmacológico , Medición de Riesgo , Biomarcadores/sangre , Factores de Riesgo de Enfermedad Cardiaca , Factores de Riesgo , Factores de Tiempo , Dislipidemias/sangre , Dislipidemias/tratamiento farmacológico , Dislipidemias/epidemiología , Dislipidemias/diagnóstico , Dislipidemias/complicaciones , Prevención Secundaria
12.
Autophagy ; 20(7): 1681-1683, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38411179

RESUMEN

A decline in macroautophagic/autophagic activity with age contributes to the accumulation of damaged molecules and is associated with the impairment of neuronal functions and the onset of age-related diseases, particularly neurodegenerative disorders. To learn about the neuronal-specific roles of autophagy genes in aging, we specifically inhibited autophagy genes pan-neuronally in C. elegans, which leads to unexpected positive impacts on neuronal homeostasis including polyQ aggregate load and organismal lifespan. These improvements are independent of canonical, degradative autophagy in neurons and instead correlate with an increase in the secretion of large, extracellular vesicles, known as exophers. We found that the ATG-16.2 WD40 domain, a conserved domain critical for at least some noncanonical autophagy functions of ATG16L1 in mammalian cells, is required for the increased exopher biogenesis, reduction in polyQ aggregate load, and lifespan extension induced by neuronal inhibition of early-acting autophagy genes. Our study suggests that noncanonical functions of ATG-16.2, and potentially other early-acting autophagy genes, may play a role in neuronal exopher formation and C. elegans aging, extending beyond their canonical degradative functions in the autophagy process.


Asunto(s)
Autofagia , Proteínas de Caenorhabditis elegans , Caenorhabditis elegans , Longevidad , Neuronas , Agregado de Proteínas , Animales , Caenorhabditis elegans/genética , Caenorhabditis elegans/metabolismo , Autofagia/genética , Autofagia/fisiología , Longevidad/genética , Neuronas/metabolismo , Proteínas de Caenorhabditis elegans/metabolismo , Proteínas de Caenorhabditis elegans/genética , Péptidos/metabolismo , Vesículas Extracelulares/metabolismo , Envejecimiento/genética
14.
Nat Aging ; 4(2): 198-212, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38177330

RESUMEN

While autophagy genes are required for lifespan of long-lived animals, their tissue-specific roles in aging remain unclear. Here, we inhibited autophagy genes in Caenorhabditis elegans neurons, and found that knockdown of early-acting autophagy genes, except atg-16.2, increased lifespan, and decreased neuronal PolyQ aggregates, independently of autophagosomal degradation. Neurons can secrete protein aggregates via vesicles called exophers. Inhibiting neuronal early-acting autophagy genes, except atg-16.2, increased exopher formation and exopher events extended lifespan, suggesting exophers promote organismal fitness. Lifespan extension, reduction in PolyQ aggregates and increase in exophers were absent in atg-16.2 null mutants, and restored by full-length ATG-16.2 expression in neurons, but not by ATG-16.2 lacking its WD40 domain, which mediates noncanonical functions in mammalian systems. We discovered a neuronal role for C. elegans ATG-16.2 and its WD40 domain in lifespan, proteostasis and exopher biogenesis. Our findings suggest noncanonical functions for select autophagy genes in both exopher formation and in aging.


Asunto(s)
Proteínas de Caenorhabditis elegans , Caenorhabditis elegans , Animales , Caenorhabditis elegans/genética , Proteínas de Caenorhabditis elegans/genética , Longevidad/genética , Neuronas/metabolismo , Autofagia/genética , Mamíferos/metabolismo
15.
Aust J Prim Health ; 30(1): NULL, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37844575

RESUMEN

BACKGROUND: The health and economic burden of antimicrobial resistance (in Australia is significant. Interventions that help guide and improve appropriate prescribing for acute respiratory tract infections in the community represent an opportunity to slow the spread of resistant bacteria. Clinicians who work in primary care are potentially the most influential health care professionals to address the problem of antimicrobial resistance, because this is where most antibiotics are prescribed. METHODS: A cluster randomised trial was conducted comparing two parallel groups of 27 urban general practices in Queensland, Australia: 13 intervention and 14 control practices, with 56 and 54 general practitioners (GPs), respectively. This study evaluated an integrated, multifaceted evidence-based package of interventions implemented over a 6-month period. The evaluation included quantitative and qualitative components, and an economic analysis. RESULTS: A multimodal package of interventions resulted in a reduction of 3.81 prescriptions per GP per month. This equates to 1280.16 prescriptions for the 56GPs in the intervention practices over the 6-month period. The cost per prescription avoided was A$148. The qualitative feedback showed that the interventions were well received by the GPs and did not impact on consultation time. Providing GPs with a choice of tools might enhance their uptake and support for antimicrobial stewardship in the community. CONCLUSIONS: A multimodal package of interventions to enhance rational prescribing of antibiotics is effective, feasible and acceptable in general practice. Investment in antimicrobial stewardship strategies in primary care may ultimately provide the important returns for public health into the future.


Asunto(s)
Antibacterianos , Medicina General , Humanos , Antibacterianos/uso terapéutico , Pautas de la Práctica en Medicina , Medicina Familiar y Comunitaria , Australia
16.
Am J Primatol ; 86(3): e23547, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37667504

RESUMEN

In 2022, long-tailed macaques (Macaca fascicularis), a once ubiquitous primate species, was elevated to Endangered on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. In 2023, recognizing that the long-tailed macaque is threatened by multiple factors: (1) declining native habitats across Southeast Asia; (2) overutilization for scientific, commercial, and recreational purposes; (3) inadequate regulatory mechanisms; and (4) culling due to human-macaque conflicts, a petition for rulemaking was submitted to the United States Fish and Wildlife Service to add the species to the US Endangered Species Act, the nation's most effective law to protect at risk species. The long-tailed macaque remains unprotected across much of its geographical range despite the documented continual decline of the species and related sub-species and the recent IUCN reassessment. This commentary presents a review of the factors that have contributed to the dramatic decline of this keystone species and makes a case for raising the level of protection they receive.


Asunto(s)
Animales Salvajes , Especies en Peligro de Extinción , Animales , Humanos , Macaca fascicularis , Primates , Geografía
17.
Artículo en Inglés | MEDLINE | ID: mdl-37804247

RESUMEN

The geroscience hypothesis suggests that addressing the fundamental mechanisms driving aging biology will prevent or mitigate the onset of multiple chronic diseases, for which the largest risk factor is advanced age. Research that investigates the root causes of aging is therefore of critical importance given the rising healthcare burden attributable to age-related diseases. The third annual Midwest Aging Consortium symposium was convened as a showcase of such research performed by investigators from institutions across the Midwestern United States. This report summarizes the work presented during a virtual conference across topics in aging biology, including immune function in the lung-particularly timely given the Corona Virus Immune Disease-2019 pandemic-along with the role of metabolism and nutrient-regulated pathways in cellular function with age, the influence of senescence on stem cell function and inflammation, and our evolving understanding of the mechanisms underlying observation of sex dimorphism in aging-related outcomes. The symposium focused on early-stage and emerging investigators, while including keynote presentations from leaders in the biology of aging field, highlighting the diversity and strength of aging research in the Midwest.


Asunto(s)
Envejecimiento , Afecciones Crónicas Múltiples , Humanos , Envejecimiento/fisiología , Inflamación , Pulmón , Gerociencia
18.
Alzheimers Dement (Amst) ; 15(4): e12512, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38094990

RESUMEN

INTRODUCTION: Early and accurate diagnosis of neurocognitive disorders including neurodegenerative dementia remains challenging. This study explores the impact of biological factors on serum neurofilament light chain (NfL) levels and clinical usefulness for the detection of neurocognitive disorders in a mixed memory clinic. METHODS: Serum samples and clinical data were obtained from 1188 patients who underwent diagnostic investigations for memory complaints between January 2018 and September 2019. Serum NfL was measured using single molecule array technology. RESULTS: NfL exhibited a moderate association with age, estimated glomerular filtration rate (eGFR), and Fazekas score. NfL was able to differentiate between patients with neurocognitive disorders and those without with a sensitivity and specificity of 80%. NfL could, however, not distinguish between different dementia etiologies. DISCUSSION: Serum NfL could aid early diagnostic triage by identifying patients requiring further diagnostic procedures and therefore aid in a more focused use of health-care resources.

19.
Nat Aging ; 3(12): 1529-1543, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37957360

RESUMEN

Autophagy-lysosomal function is crucial for maintaining healthy lifespan and preventing age-related diseases. The transcription factor TFEB plays a key role in regulating this pathway. Decreased TFEB expression is associated with various age-related disorders, making it a promising therapeutic target. In this study, we screened a natural product library and discovered mitophagy-inducing coumarin (MIC), a benzocoumarin compound that enhances TFEB expression and lysosomal function. MIC robustly increases the lifespan of Caenorhabditis elegans in an HLH-30/TFEB-dependent and mitophagy-dependent manner involving DCT-1/BNIP3 while also preventing mitochondrial dysfunction in mammalian cells. Mechanistically, MIC acts by inhibiting ligand-induced activation of the nuclear hormone receptor DAF-12/FXR, which, in turn, induces mitophagy and extends lifespan. In conclusion, our study uncovers MIC as a promising drug-like molecule that enhances mitochondrial function and extends lifespan by targeting DAF-12/FXR. Furthermore, we discovered DAF-12/FXR as a previously unknown upstream regulator of HLH-30/TFEB and mitophagy.


Asunto(s)
Proteínas de Caenorhabditis elegans , Mitofagia , Animales , Longevidad/genética , Caenorhabditis elegans/genética , Autofagia , Receptores Citoplasmáticos y Nucleares/genética , Mamíferos/metabolismo , Proteínas de Caenorhabditis elegans/genética , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/metabolismo
20.
Antibiotics (Basel) ; 12(9)2023 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-37760731

RESUMEN

Misconceptions and knowledge gaps about antibiotics contribute to inappropriate antibiotic use and antimicrobial resistance. This study aimed to identify and prioritize misconceptions and knowledge gaps about antibiotic use from a healthcare professionals' perspective. A modified Delphi study with a predefined list of statements, two questionnaire rounds, and an expert meeting was conducted. The statements were rated by healthcare professionals from France, Greece, Lithuania, Poland, and Spain, and from general practice, out-of-hour services, nursing homes, and pharmacies. A total of 44 pre-defined statements covered the following themes: (1) antimicrobial resistance in general, (2) use of antibiotics in general, (3) use of antibiotics for respiratory tract infections, and (4) use of antibiotics for urinary tract infections. Consensus was defined as ≥80% agreement between the professionals during the second Delphi round. For 30% of the statements, professionals from the four settings together reached consensus. In each setting individually, at least 50% of the statements reached consensus, indicating that there are still many misconceptions and knowledge gaps that need to be addressed. Six educational tools (leaflets, posters, checklists) were developed to address the knowledge gaps and misconceptions. These can be used by patients and healthcare professionals to improve the use of antibiotics in practice.

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