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1.
AIDS Care ; : 1-11, 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38838046

RESUMO

The number of older people living with HIV (OPLHIV) is increasing worldwide. However, little is known about the factors that better predict their health-related quality of life (HRQoL). We administered the validated WHOQoL-HIV BREF questionnaire to 247 Spanish OPLHIV (192 men and 55 women). In addition to the six domains of the questionnaire, we constructed a seventh domain as theaverage of punctuations of all domains. Multivariable Poisson regression models with robust estimates by sex were constructed for the seven domains (14 in total). The best-subset selection method together with Mallow's Cp metric was used to select the model factors. The percentage of variability explained by Poisson models ranged from15-38% for men and 29-70% for women. The analysis showed that women were most affected by ageing (four domains), mobility impairments (five domains), and mental disorders (five domains). The factors with the greatest negative influence on men were heterosexuality (six domains), mental disorders (six domains), being single (five domains), and poverty risk (three domains). Physical activity was found to improve HRQoL in both men (six domains) and women (four domains). Future OPLHIV programmes would benefit from considering sex specific HRQoL factors. This could also improve the cost-effectiveness of interventions.

2.
PLoS One ; 19(5): e0301335, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38713682

RESUMO

BACKGROUND: Current antiretroviral therapies have increased the life expectancy of people living with HIV (PLHIV). There is, however, limited evidence regarding the health-related quality of life (HRQoL) and living conditions of older people living with HIV (OPLHIV) in Spain. METHODS: We implemented a self-administered online questionnaire to identify sex differences in HRQoL and poverty risk among Spanish OPLHIV (PLHIV ≥50 years). Participants were contacted through non-governmental organisations. We used the standardised WHOQoL-HIV BREF questionnaire and the Europe 2020 guidelines to estimate HRQoL and poverty risk respectively. The statistical analysis included multivariable generalised linear models with potential confounding variables and robust estimates. RESULTS: The study included 247 OPLHIV (192 men and 55 women). On the WHOQoL-HIV BREF questionnaire, men scored higher on 84% of items and in all six domains. Women had significantly lower HRQoL in five domains: physical health (ß: -1.5; 95% CI: -2.5, -0.5; p: 0.002), psychological health (ß: -1.0; 95% CI: -1.9, -0.1; p: 0.036), level of independence (ß: -1.1; 95% CI: -1.9, -0.2; p: 0.019), environmental health (ß: -1.1; 95% CI: -1.8, -0.3; p: 0.008), and spirituality/personal beliefs (ß: -1.4; 95% CI: -2.5, -0.3; p: 0.012). No statistical differences were found in the domain of social relations. Poverty risk was considerable for both men (30%) and women (53%), but women were significantly more likely to experience it (OR: 2.9; 95% CI: 1.3, 6.5; p: 0.009). CONCLUSION: The aging of PLHIV is a public health concern. Our findings indicate that HRQoL and poverty risk among Spanish OPLHIV differ significantly by sex. Spain should, therefore, implement specific policies and interventions to address OPLHIV needs. The strategies must place a high priority on the reduction of sex inequalities in HRQoL and the enhancement of the structural conditions in which OPLHIV live.


Assuntos
Infecções por HIV , Pobreza , Qualidade de Vida , Humanos , Masculino , Feminino , Espanha/epidemiologia , Infecções por HIV/psicologia , Infecções por HIV/epidemiologia , Infecções por HIV/tratamento farmacológico , Estudos Transversais , Pessoa de Meia-Idade , Idoso , Inquéritos e Questionários , Fatores Sexuais
3.
Cells ; 12(5)2023 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-36899942

RESUMO

The identification of Parkinson's disease (PD) biomarkers has become a main goal for the diagnosis of this neurodegenerative disorder. PD has not only been intrinsically related to neurological problems, but also to a series of alterations in peripheral metabolism. The purpose of this study was to identify metabolic changes in the liver in mouse models of PD with the scope of finding new peripheral biomarkers for PD diagnosis. To achieve this goal, we used mass spectrometry technology to determine the complete metabolomic profile of liver and striatal tissue samples from WT mice, 6-hydroxydopamine-treated mice (idiopathic model) and mice affected by the G2019S-LRRK2 mutation in LRRK2/PARK8 gene (genetic model). This analysis revealed that the metabolism of carbohydrates, nucleotides and nucleosides was similarly altered in the liver from the two PD mouse models. However, long-chain fatty acids, phosphatidylcholine and other related lipid metabolites were only altered in hepatocytes from G2019S-LRRK2 mice. In summary, these results reveal specific differences, mainly in lipid metabolism, between idiopathic and genetic PD models in peripheral tissues and open up new possibilities to better understand the etiology of this neurological disorder.


Assuntos
Doença de Parkinson , Animais , Camundongos , Biomarcadores , Modelos Animais de Doenças , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/genética , Lipidômica , Fígado/metabolismo , Metabolômica , Doença de Parkinson/metabolismo
4.
Cell Biol Toxicol ; 39(3): 751-770, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-34448959

RESUMO

Autophagy is a conserved intracellular catabolic pathway that removes cytoplasmic components to contribute to neuronal homeostasis. Accumulating evidence has increasingly shown that the induction of autophagy improves neuronal health and extends longevity in several animal models. Therefore, there is a great interest in the identification of effective autophagy enhancers with potential nutraceutical or pharmaceutical properties to ameliorate age-related diseases, such as neurodegenerative disorders, and/or promote longevity. Queen bee acid (QBA, 10-hydroxy-2-decenoic acid) is the major fatty acid component of, and is found exclusively in, royal jelly, which has beneficial properties for human health. It is reported that QBA has antitumor, anti-inflammatory, and antibacterial activities and promotes neurogenesis and neuronal health; however, the mechanism by which QBA exerts these effects has not been fully elucidated. The present study investigated the role of the autophagic process in the protective effect of QBA. We found that QBA is a novel autophagy inducer that triggers autophagy in various neuronal cell lines and mouse and fly models. The beclin-1 (BECN1) and mTOR pathways participate in the regulation of QBA-induced autophagy. Moreover, our results showed that QBA stimulates sirtuin 1 (SIRT1), which promotes autophagy by the deacetylation of critical ATG proteins. Finally, QBA-mediated autophagy promotes neuroprotection in Parkinson's disease in vitro and in a mouse model and extends the lifespan of Drosophila melanogaster. This study provides detailed evidences showing that autophagy induction plays a critical role in the beneficial health effects of QBA.


Assuntos
Fármacos Neuroprotetores , Doença de Parkinson , Camundongos , Humanos , Abelhas , Animais , Neuroproteção , Drosophila melanogaster , Autofagia , Linhagem Celular , Fármacos Neuroprotetores/farmacologia
5.
Clin Microbiol Infect ; 29(1): 85-93, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35940567

RESUMO

OBJECTIVES: To assess the effect of hydroxychloroquine (HCQ) and Tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) as pre-exposure prophylaxis on COVID-19 risk. METHODS: EPICOS is a double-blind, placebo-controlled randomized trial conducted in Spain, Bolivia, and Venezuela. Healthcare workers with negative SARS-CoV-2 IgM/IgG test were randomly assigned to the following: daily TDF/FTC plus HCQ for 12 weeks, TDF/FTC plus HCQ placebo, HCQ plus TDF/FTC placebo, and TDF/FTC placebo plus HCQ placebo. Randomization was performed in groups of four. Primary outcome was laboratory-confirmed, symptomatic COVID-19. We also studied any (symptomatic or asymptomatic) COVID-19. We compared group-specific 14-week risks via differences and ratios with 95% CIs. RESULTS: Of 1002 individuals screened, 926 (92.4%) were eligible and there were 14 cases of symptomatic COVID-19: 220 were assigned to the TDF/FTC plus HCQ group (3 cases), 231 to the TDF/FTC placebo plus HCQ group (3 cases), 233 to the TDF/FTC plus HCQ placebo group (3 cases), and 223 to the double placebo group (5 cases). Compared with the double placebo group, 14-week risk ratios (95% CI) of symptomatic COVID-19 were 0.39 (0.00-1.98) for TDF + HCQ, 0.34 (0.00-2.06) for TDF, and 0.49 (0.00-2.29) for HCQ. Corresponding risk ratios of any COVID-19 were 0.51 (0.21-1.00) for TDF + HCQ, 0.81 (0.44-1.49) for TDF, and 0.73 (0.41-1.38) for HCQ. Adverse events were generally mild. DISCUSSION: The target sample size was not met. Our findings are compatible with both benefit and harm of pre-exposure prophylaxis with TDF/FTC and HCQ, alone or in combination, compared with placebo.


Assuntos
Fármacos Anti-HIV , COVID-19 , Infecções por HIV , Organofosfonatos , Profilaxia Pré-Exposição , Humanos , Tenofovir/uso terapêutico , Emtricitabina/uso terapêutico , Hidroxicloroquina/efeitos adversos , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Adenina , Organofosfonatos/efeitos adversos , Desoxicitidina/efeitos adversos , COVID-19/prevenção & controle , Tratamento Farmacológico da COVID-19 , SARS-CoV-2 , Pessoal de Saúde , Método Duplo-Cego
6.
AIDS ; 36(15): 2171-2179, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36382436

RESUMO

BACKGROUND: Effective, safe, and affordable antivirals are needed for coronavirus disease 2019 (COVID-19). Several lines of research suggest that tenofovir may be effective against COVID-19, but no large-scale human studies with appropriate adjustment for comorbidities have been conducted. METHODS: We studied HIV-positive individuals on antiretroviral therapy (ART) in 2020 at 69 HIV clinics in Spain. We collected data on sociodemographics, ART, CD4+ cell count, HIV-RNA viral-load, comorbidities and the following outcomes: laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, COVID-19 hospitalization, intensive care unit (ICU) admission and death. We compared the 48-week risks for individuals receiving tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC), tenofovir alafenamide (TAF)/FTC, abacavir (ABC)/lamivudine (3TC), and other regimes. All estimates were adjusted for clinical and sociodemographic characteristics via inverse probability weighting. RESULTS: Of 51 558 eligible individuals, 39.6% were on TAF/FTC, 11.9% on TDF/FTC, 26.6% on ABC/3TC, 21.8% on other regimes. There were 2402 documented SARS-CoV-2 infections (425 hospitalizations, 45 ICU admissions, 37 deaths). Compared with TAF/FTC, the estimated risk ratios (RR) (95% confidence interval) of hospitalization were 0.66 (0.43, 0.91) for TDF/FTC and 1.29 (1.02, 1.58) for ABC/3TC, the RRs of ICU admission were 0.28 (0.11, 0.90) for TDF/FTC and 1.39 (0.70, 2.80) for ABC/3TC, and the RRs of death were 0.37 (0.23, 1.90) for TDF/FTC and 2.02 (0.88-6.12) for ABC/3TC. The corresponding RRs of hospitalization for TDF/FTC were 0.49 (0.24, 0.81) in individuals ≥50 years and 1.15 (0.59, 1.93) in younger individuals. DISCUSSION: Compared with other antiretrovirals, TDF/FTC lowers COVID-19 severity among HIV-positive individuals with virological control. This protective effect may be restricted to individuals aged 50 years and older.


Assuntos
Fármacos Anti-HIV , COVID-19 , Infecções por HIV , Humanos , Pessoa de Meia-Idade , Idoso , Emtricitabina/uso terapêutico , Lamivudina/uso terapêutico , Tenofovir/uso terapêutico , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Terapia Antirretroviral de Alta Atividade , Fármacos Anti-HIV/uso terapêutico , SARS-CoV-2 , Combinação de Medicamentos
7.
Cells ; 11(19)2022 09 27.
Artigo em Inglês | MEDLINE | ID: mdl-36230978

RESUMO

Myotonic dystrophy type 1 (DM1) is an autosomal dominant disease caused by a CTG repeat expansion in the 3' untranslated region of the dystrophia myotonica protein kinase gene. AKT dephosphorylation and autophagy are associated with DM1. Autophagy has been widely studied in DM1, although the endocytic pathway has not. AKT has a critical role in endocytosis, and its phosphorylation is mediated by the activation of tyrosine kinase receptors, such as epidermal growth factor receptor (EGFR). EGF-activated EGFR triggers the internalization and degradation of ligand-receptor complexes that serve as a PI3K/AKT signaling platform. Here, we used primary fibroblasts from healthy subjects and DM1 patients. DM1-derived fibroblasts showed increased autophagy flux, with enlarged endosomes and lysosomes. Thereafter, cells were stimulated with a high concentration of EGF to promote EGFR internalization and degradation. Interestingly, EGF binding to EGFR was reduced in DM1 cells and EGFR internalization was also slowed during the early steps of endocytosis. However, EGF-activated EGFR enhanced AKT and ERK1/2 phosphorylation levels in the DM1-derived fibroblasts. Therefore, there was a delay in EGF-stimulated EGFR endocytosis in DM1 cells; this alteration might be due to the decrease in the binding of EGF to EGFR, and not to a decrease in AKT phosphorylation.


Assuntos
Fator de Crescimento Epidérmico , Distrofia Miotônica , Regiões 3' não Traduzidas , Fator de Crescimento Epidérmico/genética , Fator de Crescimento Epidérmico/farmacologia , Receptores ErbB/metabolismo , Humanos , Ligantes , Distrofia Miotônica/genética , Fosfatidilinositol 3-Quinases/genética , Proteínas Proto-Oncogênicas c-akt/metabolismo
8.
Lancet Healthy Longev ; 3(3): e206-e215, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-36098292

RESUMO

People ageing with HIV face crucial challenges that can compromise their long-term health, one of which is stigma. HIV-related stigma can interact with other coexistent inequities to create a unique oppression system that results in traumatic experiences. This intersectionality of stigmas represents a new inequality that is greater than the sum of the original component inequalities. In this Series paper we review the literature regarding the intersectionality of HIV-related and ageing-related stigma and health-related quality of life among people ageing with HIV in China, Europe, and Latin America-three regions that represent distinct epidemiological and cultural trends in terms of HIV and ageing. Substantial gaps in the literature were identified, in particular a scarcity of data from Latin America. We also found inconsistencies between countries in terms of definitions and reporting practices related to people ageing with HIV. Research that fully considers the intersectional stigmas faced by this vulnerable population will contribute to advancing the United Nations 2030 Agenda for Sustainable Development.


Assuntos
Infecções por HIV , Qualidade de Vida , Envelhecimento , Infecções por HIV/epidemiologia , Humanos , Enquadramento Interseccional , América Latina/epidemiologia
9.
Eur J Epidemiol ; 37(8): 789-796, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35943669

RESUMO

BACKGROUND: Recruitment into randomized trials of hydroxychloroquine (HCQ) for prevention of COVID-19 has been adversely affected by a widespread conviction that HCQ is not effective for prevention. In the absence of an updated systematic review, we conducted a meta-analysis of randomized trials that study the effectiveness of HCQ to prevent COVID-19. METHODS: A search of PubMed, medRxiv, and clinicaltrials.gov combined with expert consultation found 11 completed randomized trials: 7 pre-exposure prophylaxis trials and 4 post-exposure prophylaxis trials. We obtained or calculated the risk ratio of COVID-19 diagnosis for assignment to HCQ versus no HCQ (either placebo or usual care) for each trial, and then pooled the risk ratio estimates. RESULTS: The pooled risk ratio estimate of the pre-exposure prophylaxis trials was 0.72 (95% CI: 0.58-0.90) when using either a fixed effect or a standard random effects approach, and 0.72 (95% CI: 0.55-0.95) when using a conservative modification of the Hartung-Knapp random effects approach. The corresponding estimates for the post-exposure prophylaxis trials were 0.91 (95% CI: 0.72-1.16) and 0.91 (95% CI: 0.62-1.35). All trials found a similar rate of serious adverse effects in the HCQ and no HCQ groups. DISCUSSION: A benefit of HCQ as prophylaxis for COVID-19 cannot be ruled out based on the available evidence from randomized trials. However, the "not statistically significant" findings from early prophylaxis trials were widely interpreted as definite evidence of lack of effectiveness of HCQ. This interpretation disrupted the timely completion of the remaining trials and thus the generation of precise estimates for pandemic management before the development of vaccines.


Assuntos
Tratamento Farmacológico da COVID-19 , COVID-19 , Hidroxicloroquina , COVID-19/prevenção & controle , Teste para COVID-19 , Humanos , Hidroxicloroquina/efeitos adversos , Hidroxicloroquina/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , SARS-CoV-2
10.
Antioxidants (Basel) ; 11(7)2022 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-35883891

RESUMO

KEAP1 is a cytoplasmic protein that functions as an adaptor for the Cullin-3-based ubiquitin E3 ligase system, which regulates the degradation of many proteins, including NFE2L2/NRF2 and p62/SQSTM1. Loss of KEAP1 leads to an accumulation of protein ubiquitin aggregates and defective autophagy. To better understand the role of KEAP1 in the degradation machinery, we investigated whether Keap1 deficiency affects the endosome-lysosomal pathway. We used KEAP1-deficient mouse embryonic fibroblasts (MEFs) and combined Western blot analysis and fluorescence microscopy with fluorometric and pulse chase assays to analyze the levels of lysosomal-endosomal proteins, lysosomal function, and autophagy activity. We found that the loss of keap1 downregulated the protein levels and activity of the cathepsin D enzyme. Moreover, KEAP1 deficiency caused lysosomal alterations accompanied by an accumulation of autophagosomes. Our study demonstrates that KEAP1 deficiency increases nondegradative lysosomes and identifies a new role for KEAP1 in lysosomal function that may have therapeutic implications.

11.
Mol Cell Oncol ; 9(1): 2044263, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35340790

RESUMO

Phenolic compounds derived from olive oil have beneficial health properties against cancer, neurodegenerative, and metabolic diseases. Therefore, there are discrepancies in their impact on mitochondrial function that result in changes in oxidative capacity, mitochondrial respiration, and energetic demands. This review focuses on the versatile role of oleuropein, a potent antioxidant that regulates the AMPK/SIRT1/mTOR pathway to modulate autophagy/mitophagy and maintain metabolic homeostasis.

12.
Cell Biol Toxicol ; 38(5): 889-911, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-34060004

RESUMO

Autophagy is a mechanism responsible for the degradation of cellular components to maintain their homeostasis. However, autophagy is commonly altered and compromised in several diseases, including neurodegenerative disorders. Parkinson's disease (PD) can be considered a multifactorial disease because environmental factors, genetic factors, and aging are involved. Several genes are involved in PD pathology, among which the LRRK2 gene and its mutations, inherited in an autosomal dominant manner, are responsible for most genetic PD cases. The R1441G LRRK2 mutation is, after G2019S, the most important in PD pathogenesis. Our results demonstrate a relationship between the R1441G LRRK2 mutation and a mechanistic dysregulation of autophagy that compromises cell viability. This altered autophagy mechanism is associated with organellar stress including mitochondrial (which induces mitophagy) and endoplasmic reticulum (ER) stress, consistent with the fact that patients with this mutation are more vulnerable to toxins related to PD, such as MPP+.


Assuntos
Mitofagia , Doença de Parkinson , Estresse do Retículo Endoplasmático/genética , Humanos , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/genética , Serina-Treonina Proteína Quinase-2 com Repetições Ricas em Leucina/metabolismo , Macroautofagia , Mitofagia/genética , Mutação/genética , Doença de Parkinson/genética , Doença de Parkinson/metabolismo , Doença de Parkinson/patologia , Proteínas Serina-Treonina Quinases/genética
13.
Curr Opin Infect Dis ; 35(1): 9-14, 2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-34812744

RESUMO

PURPOSE OF REVIEW: The COVID-19 pandemic materialized in 2020, the year the international community had expected to meet the interim targets to end AIDS by 2030. Forty years into the HIV pandemic, the COVID-19 pandemic challenges the achievements made in HIV and may even reverse some of them. RECENT FINDINGS: This article provides an overview of the impact of COVID-19 on people with, and at risk of, HIV infection. It addresses where the global response to HIV was expected to be by 2020, analyzes the impact of COVID-19 on HIV-related outcomes and reviews the impact of HIV on COVID-19 related outcomes. SUMMARY: The COVID-19 pandemic has had a profound impact on the response to HIV infection through disruption of prevention, testing, and access to antiretroviral treatment, as well as on the management of long-term HIV and mental health. This negative impact has been unequal throughout the world and across populations and deepens inequities in health. HIV does not increase Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) susceptibility once confounders are taken into account and inconsistencies are reported regarding its direct role on clinical severity. In post-COVID-19 scenarios, new models for HIV testing and care are likely to be consolidated. Monitoring responses needs high-quality epidemiological data and collaborative research.


Assuntos
COVID-19 , Infecções por HIV , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Saúde Mental , Pandemias/prevenção & controle , SARS-CoV-2
14.
AIDS ; 36(2): 161-168, 2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-34934017

RESUMO

The relative susceptibility of people with HIV (PWH) to Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is debated. Numerous studies have been published with apparently contradictory findings, but comparisons are difficult because they have been conducted in populations with different characteristics (e.g. age, prevalence comorbidities) and have used different comparison groups (e.g. HIV-negative cohorts, coronavirus disease 2019 (COVID-19) hospitalized patients, general population), and because of challenges to measure the most important confounders. Here, we review the evidence regarding risk and severity of SARS-CoV-2 infection in PWH compared with persons without HIV. Publications originate largely from high-income settings where the majority of the PWH are on antiretroviral therapy (ART). Despite early evidence supporting higher frequency of SARS-CoV-2 testing in PWH on ART, HIV infection is not associated with SARS-CoV-2 infection, once confounding by socioeconomic characteristic is taken into account. Most publications identify increased COVID-19 severity in PWH compared with people without HIV from the general population or compared with COVID-19 hospitalized patients. The only study with an adequate comparison group to reduce confounding, has not identified differences in COVID-19 disease severity by HIV. Publications consistently identify that COVID-19 severity in PWH is not homogeneous and increases with age and baseline comorbidities. As PWH have a higher prevalence of comorbidities than people without HIV, examining their respective contribution to poor health outcomes is not straight forward as comorbidities could mediate the effect of HIV on COVID-19 outcomes.


Assuntos
COVID-19 , Infecções por HIV , Antirretrovirais/uso terapêutico , Teste para COVID-19 , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Humanos , SARS-CoV-2
16.
PLoS One ; 16(2): e0246129, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33556085

RESUMO

BACKGROUND: Pre-exposure prophylaxis (PrEP) is an effective and cost-effective strategy for HIV prevention. Spain carried out an implementation study in order to assess the feasibility of implementing PrEP programmes within its heterogeneous health system. METHODS: Observational longitudinal study conducted on four different types of health-care setting: a community centre (CC), a sexually transmitted infections clinic (STIC), a hospital-based HIV unit (HBHIVU) and a hospital-based STI unit (HBSTIU). We recruited gay, bisexual and other men who have sex with men (GBSM) and transgender women at risk of HIV infections, gave them PrEP and monitored clinical, behavioural PrEP-related and satisfaction information for 52 weeks. We collected perceptions on PrEP implementation feasibility from health-care professionals participating in the study. RESULTS: A total of 321 participants were recruited, with 99.1% being GBMSM. Overall retention was 87.2% and it was highest at the CC (92.6%). Condom use decreased during the study period, while STIs did not increase consistently. The percentage of people who did not miss any doses of PrEP during the previous week remained at over 93%. No HIV seroconversions occurred. We observed overall decreases in GHB (32.5% to 21.8%), cocaine (27.5% to 21.4%), MDMA (25.7% to 14.3%), speed (11.4% to 5.7%) and mephedrone use (10.7% to 5.0%). The overall participant satisfaction with PrEP was 98.6%. Health-care professionals' perceptions of PrEP feasibility were positive, except for the lack of personnel. CONCLUSIONS: PrEP implementation is feasible in four types of health-care settings. Local specificities have to be taken into consideration while implementing PrEP.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/prevenção & controle , Profilaxia Pré-Exposição/métodos , Minorias Sexuais e de Gênero/estatística & dados numéricos , Infecções Sexualmente Transmissíveis/prevenção & controle , Pessoas Transgênero/estatística & dados numéricos , Adulto , Estudos de Viabilidade , Feminino , Pessoal de Saúde , Humanos , Estudos Longitudinais , Masculino , Percepção , Sexo Seguro , Espanha , Cooperação e Adesão ao Tratamento/estatística & dados numéricos
17.
Aging (Albany NY) ; 12(17): 16690-16708, 2020 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-32903216

RESUMO

The research of new biomarkers for Parkinson's disease is essential for accurate and precocious diagnosis, as well as for the discovery of new potential disease mechanisms and drug targets. The main objective of this work was to identify metabolic changes that might serve as biomarkers for the diagnosis of this neurodegenerative disorder. For this, we profiled the plasma metabolome from mice with neurotoxin-induced Parkinson's disease as well as from patients with familial or sporadic Parkinson's disease. By using mass spectrometry technology, we analyzed the complete metabolome from healthy volunteers compared to patients with idiopathic or familial (carrying the G2019S or R1441G mutations in the LRRK2 gene) Parkinson's disease, as well as, from mice treated with 6-hydroxydopamine to induce Parkinson disease. Both human and murine Parkinson was accompanied by an increase in plasma levels of unconjugated bile acids (cholic acid, deoxycholic acid and lithocholic acid) and purine base intermediary metabolites, in particular hypoxanthine. The comprehensive metabolomic analysis of plasma from Parkinsonian patients underscores the importance of bile acids and purine metabolism in the pathophysiology of this disease. Therefore, plasma measurements of certain metabolites related to these pathways might contribute to the diagnosis of Parkinson's Disease.

19.
Farm Hosp ; 44(4): 163-173, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32646348

RESUMO

Adherence to treatment in patients living with HIV remains the focus of attention of health professionals and researchers. However, patient profiles and the  available therapeutic arsenal have changed greatly over the last decade.  Inadequate adherence not only to antiretroviral therapy but also to other  prescribed drugs remains the main cause of therapeutic failure. There are  several factors associated with poor adherence and others that facilitate it,  hence the importance of identifying, managing and correcting situations that  may hinder adherence. Likewise, adherence should be periodically reassessed  during the follow-up of ART and other prescribed drugs. It has so far proved  impossible to find a single method capable of providing a reliable measurement  of adherence. That is why it is necessary to use a combination of multiple easy- to-implement methods. Additionally, a good relationship with the patient  facilitates the conveyance of adequate information on adherence. It is currently  considered that interventions to improve adherence should be multidisciplinary,  individualized and adjusted to the new patterns of infection transmission, and  that controlling adherence to other drugs prescribed to patients with HIV should  be part of such interventions. This document provides an update on the  recommendations published in 2008 based on a review of the scientific  literature. The main goal is to help healthcare professionals dedicated to the  clinical and therapeutic management of HIV patients (doctors, pharmacists,  nurses, psychologists and social workers) improve adherence of such patients to  all the drugs prescribed to them as treatment for their HIV infection.


La adherencia al tratamiento en el paciente con infección por el virus de la  inmunodeficiencia humana sigue siendo foco de atención de profesionales sanitarios e investigadores. Sin embargo, el perfil del paciente y el  arsenal terapéutico disponible han cambiado enormemente en la última década.  La adherencia inadecuada, no solo al tratamiento antirretroviral sino también a otros fármacos prescritos, sigue siendo la principal causa de fracaso  terapéutico. Existen diversos factores asociados a la mala adherencia y otros  que facilitan la misma, de ahí la importancia de identificar y manejar las  situaciones que puedan dificultar la adherencia e intentar corregirlas. Asimismo, se debe reevaluar periódicamente la adherencia durante el  seguimiento del tratamiento antirretroviral y del resto de los fármacos  prescritos. En la actualidad no existe un método único para medir la adherencia  de forma fiable. Por ello se hace necesario utilizar varios métodos combinados de fácil realización. Adicionalmente, una buena relación entre el  personal sanitario y los pacientes facilita la obtención de una adecuada  información sobre la adherencia. Las intervenciones para mejorar la adherencia  deben ser multidisciplinares, individualizadas y ajustadas a los nuevos patrones  de transmisión de la infección, y es fundamental incluir el control de la adherencia a otros fármacos prescritos al paciente con el virus de la  inmunodeficiencia humana. El presente documento actualiza las  recomendaciones publicadas en 2008 tras una revisión de la literatura científica,  lo que ha permitido emitir unas recomendaciones consensuadas para la mejora  de la adherencia al tratamiento. El objetivo principal es ayudar a todos los  profesionales sanitarios dedicados al control clínico y terapéutico de los  pacientes con el virus de la inmunodeficiencia humana (médicos, farmacéuticos,  enfermeras, psicólogos y trabajadores sociales) a mejorar la adherencia a toda  la farmacoterapia que tengan prescrita.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Fármacos Anti-HIV/uso terapêutico , Consenso , HIV , Infecções por HIV/tratamento farmacológico , Humanos , Adesão à Medicação
20.
Ann Intern Med ; 173(7): 536-541, 2020 10 06.
Artigo em Inglês | MEDLINE | ID: mdl-32589451

RESUMO

BACKGROUND: The incidence and severity of coronavirus disease 2019 (COVID-19) among HIV-positive persons receiving antiretroviral therapy (ART) have not been characterized in large populations. OBJECTIVE: To describe the incidence and severity of COVID-19 by nucleos(t)ide reverse transcriptase inhibitor (NRTI) use among HIV-positive persons receiving ART. DESIGN: Cohort study. SETTING: HIV clinics in 60 Spanish hospitals between 1 February and 15 April 2020. PARTICIPANTS: 77 590 HIV-positive persons receiving ART. MEASUREMENTS: Estimated risks (cumulative incidences) per 10 000 persons and 95% CIs for polymerase chain reaction-confirmed COVID-19 diagnosis, hospitalization, intensive care unit (ICU) admission, and death. Risk and 95% CIs for COVID-19 diagnosis and hospital admission by use of the NRTIs tenofovir disoproxil fumarate (TDF)/emtricitabine (FTC), tenofovir alafenamide (TAF)/FTC, abacavir (ABC)/lamivudine (3TC), and others were estimated through Poisson regression models. RESULTS: Of 77 590 HIV-positive persons receiving ART, 236 were diagnosed with COVID-19, 151 were hospitalized, 15 were admitted to the ICU, and 20 died. The risks for COVID-19 diagnosis and hospitalization were greater in men and persons older than 70 years. The risk for COVID-19 hospitalization was 20.3 (95% CI, 15.2 to 26.7) among patients receiving TAF/FTC, 10.5 (CI, 5.6 to 17.9) among those receiving TDF/FTC, 23.4 (CI, 17.2 to 31.1) among those receiving ABC/3TC, and 20.0 (CI, 14.2 to 27.3) for those receiving other regimens. The corresponding risks for COVID-19 diagnosis were 39.1 (CI, 31.8 to 47.6), 16.9 (CI, 10.5 to 25.9), 28.3 (CI, 21.5 to 36.7), and 29.7 (CI, 22.6 to 38.4), respectively. No patient receiving TDF/FTC was admitted to the ICU or died. LIMITATION: Residual confounding by comorbid conditions cannot be completely excluded. CONCLUSION: HIV-positive patients receiving TDF/FTC have a lower risk for COVID-19 and related hospitalization than those receiving other therapies. These findings warrant further investigation in HIV preexposure prophylaxis studies and randomized trials in persons without HIV. PRIMARY FUNDING SOURCE: Instituto de Salud Carlos III and National Institutes of Health.


Assuntos
Terapia Antirretroviral de Alta Atividade , Infecções por Coronavirus/epidemiologia , Infecções por HIV/tratamento farmacológico , Pneumonia Viral/epidemiologia , Adenina/análogos & derivados , Adulto , Idoso , Betacoronavirus , COVID-19 , Infecções por Coronavirus/mortalidade , Didesoxinucleosídeos , Combinação de Medicamentos , Emtricitabina , Feminino , Infecções por HIV/mortalidade , Hospitalização/estatística & dados numéricos , Humanos , Incidência , Unidades de Terapia Intensiva/estatística & dados numéricos , Lamivudina , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/mortalidade , Reação em Cadeia da Polimerase Via Transcriptase Reversa , SARS-CoV-2 , Índice de Gravidade de Doença , Espanha/epidemiologia , Tenofovir
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