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1.
Viruses ; 16(6)2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38932214

RESUMO

Human adenovirus-36 (HAdV-36) infection has been linked to obesity, low lipid levels, and improvements in blood glucose levels and insulin sensitivity in animal models and humans, although epidemiological studies remain controversial. Therefore, this study investigated the relationship between HAdV-36 seropositivity and glycemic control in youths. This observational study examined 460 youths (246 with normal weight and 214 obese subjects). All participants underwent assessments for anthropometry, blood pressure, circulating fasting levels of glucose, lipids, insulin, and anti-HAdV-36 antibodies; additionally, the homeostatic model assessment of insulin resistance (HOMA-IR) was calculated. In all, 57.17% of the subjects were HAdV-36 seropositive. Moreover, HAdV-36 seroprevalence was higher in obese subjects compared to their normal weight counterparts (59% vs. 55%). BMI (33.1 vs. 32.3 kg/m2, p = 0.03), and waist circumference (107 vs. 104 cm, p = 0.02), insulin levels (21 vs. 16.3 µU/mL, p = 0.003), and HOMA-IR (4.6 vs. 3.9, p = 0.02) were higher in HAdV-36-positive subjects with obesity compared to seronegative subjects. In the obese group, HAdV-36 seropositivity was associated with a reducing effect in blood glucose levels in a model adjusted for total cholesterol, triglyceride levels, age and sex (ß = -10.44, p = 0.014). Furthermore, a statistically significant positive relationship was observed between HAdV-36 seropositivity and insulin levels in the obesity group. These findings suggest that natural HAdV-36 infection improves glycemic control but does not ameliorate hyperinsulinemia in obese subjects.


Assuntos
Infecções por Adenovirus Humanos , Adenovírus Humanos , Glicemia , Resistência à Insulina , Insulina , Obesidade , Humanos , Masculino , Feminino , Glicemia/análise , Insulina/sangue , Adolescente , Obesidade/sangue , Infecções por Adenovirus Humanos/sangue , Infecções por Adenovirus Humanos/epidemiologia , Infecções por Adenovirus Humanos/virologia , Criança , Estudos Soroepidemiológicos , Adulto Jovem , Índice de Massa Corporal , Anticorpos Antivirais/sangue
2.
Artigo em Inglês | MEDLINE | ID: mdl-38916077

RESUMO

We assessed the prevalence and factors associated with HIV-infected patients' interest in trying long-acting injectable antiretroviral treatment (LAI-ART) along with its expected benefits and concerns, and evaluated physicians' opinions about LAI-ART. This study was set within the multi-center prospective CoRIS cohort, comprising HIV-positive adults, naïve to antiretroviral treatment (ART) at study entry, recruited from 2004 onward in 48 centers in Spain. In June 2022, we conducted a 2-day cross-sectional survey among patients across 34 CoRIS centers and sent an online questionnaire to all physicians prescribing ART in 39 CoRIS centers. Of the 271 patients included, 83.3% [95% confidence interval (CI)]: 78.0 - 87.0%) expressed interest in receiving LAI-ART. This interest was higher among men (adjusted odds ratio: 2.96; 95% CI: 1.4-6.12), those aged <50 years (2.41; 1.23 - 4.73), and individuals inconvenienced by oral ART (5.03; 1.47 - 17.15), daily intake (14.65; 3.44-62.46), carrying HIV pills constantly (7.19; 2.88 - 17.96), and taking multiple medications (3.94; 1.58 - 9.85). Among the 154 physicians surveyed, 45.5% believed LAI-ART would be the preferred option for patients. Although most physicians (92.9%) thought LAI-ART could improve patients' quality of life (QoL), concerns were raised by 37.7% and 44.2% of them regarding injection site pain and visit rescheduling, respectively. Interest in LAI-ART was higher among men, those aged <50 years, and individuals finding their oral ART inconvenient. Physicians believed LAI-ART could improve QoL and overcome treatment challenges, yet concerns were raised about its potential usage difficulties. Although most patients were interested in receiving LAI-ART, only less than half of the physicians considered it their preferred option, likely owing to concerns about missed visits and injection site pain.

3.
Comput Biol Med ; 176: 108561, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38749321

RESUMO

Deep Generative Models (DGMs) are becoming instrumental for inferring probability distributions inherent to complex processes, such as most questions in biomedical research. For many years, there was a lack of mathematical methods that would allow this inference in the scarce data scenario of biomedical research. The advent of single-cell omics has finally made square the so-called "skinny matrix", allowing to apply mathematical methods already extensively used in other areas. Moreover, it is now possible to integrate data at different molecular levels in thousands or even millions of samples, thanks to the number of single-cell atlases being collaboratively generated. Additionally, DGMs have proven useful in other frequent tasks in single-cell analysis pipelines, from dimensionality reduction, cell type annotation to RNA velocity inference. In spite of its promise, DGMs need to be used with caution in biomedical research, paying special attention to its use to answer the right questions and the definition of appropriate error metrics and validation check points that confirm not only its correct use but also its relevance. All in all, DGMs provide an exciting tool that opens a bright future for the integrative analysis of single-cell -omics to understand health and disease.


Assuntos
Análise de Célula Única , Análise de Célula Única/métodos , Humanos , Aprendizado Profundo , Biologia Computacional/métodos
4.
PLoS One ; 19(4): e0300400, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38662718

RESUMO

One of the most common forms of cancer in fair skinned populations is Non-Melanoma Skin Cancer (NMSC), which primarily consists of Basal Cell Carcinoma (BCC), and cutaneous Squamous Cell Carcinoma (SCC). Detecting NMSC early can significantly improve treatment outcomes and reduce medical costs. Similarly, Actinic Keratosis (AK) is a common skin condition that, if left untreated, can develop into more serious conditions, such as SCC. Hyperspectral imagery is at the forefront of research to develop non-invasive techniques for the study and characterisation of skin lesions. This study aims to investigate the potential of near-infrared hyperspectral imagery in the study and identification of BCC, SCC and AK samples in comparison with healthy skin. Here we use a pushbroom hyperspectral camera with a spectral range of ≈ 900 to 1600 nm for the study of these lesions. For this purpose, an ad hoc platform was developed to facilitate image acquisition. This study employed robust statistical methods for the identification of an optimal spectral window where the different samples could be differentiated. To examine these datasets, we first tested for the homogeneity of sample distributions. Depending on these results, either traditional or robust descriptive metrics were used. This was then followed by tests concerning the homoscedasticity, and finally multivariate comparisons of sample variance. The analysis revealed that the spectral regions between 900.66-1085.38 nm, 1109.06-1208.53 nm, 1236.95-1322.21 nm, and 1383.79-1454.83 nm showed the highest differences in this regard, with <1% probability of these observations being a Type I statistical error. Our findings demonstrate that hyperspectral imagery in the near-infrared spectrum is a valuable tool for analyzing, diagnosing, and evaluating non-melanoma skin lesions, contributing significantly to skin cancer research.


Assuntos
Ceratose Actínica , Neoplasias Cutâneas , Ceratose Actínica/diagnóstico , Ceratose Actínica/patologia , Humanos , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/patologia , Imageamento Hiperespectral/métodos , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/patologia , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Carcinoma Basocelular/diagnóstico , Carcinoma Basocelular/patologia
5.
Curr Urol ; 18(1): 34-42, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38505156

RESUMO

Background: Malignant ureteral obstruction (MUO) is a common condition that complicates the course of advanced malignancies. The aims of this study are to analyze the causes, management, and survival of patients with obstructive nephropathy due to malignant ureteric obstruction and to determine prognostic factors. Furthermore, we studied the complications and outcomes in patients who underwent urinary diversion. Materials and methods: A retrospective study was conducted on patients with computed tomography-confirmed MUO between January 2016 and November 2020. Demographic, clinical, radiological, laboratory, and management data were collected. Survival curves were estimated using the Kaplan-Meier method, and univariate and multivariate Cox proportional hazards models were used to test the association between parameters and survival. Results: A total of 188 patients were included. The mean age was 69.01 years (SD, 14.95 years), and the majority (54.8%) were male. The most common mechanism leading to MUO was compression by a pelvic mass (36.9%), and the 3 most frequent tumors causing MUO were prostate (17.6%), bladder (16.5%), and rectal cancer (11.7%).Forty-seven patients (25%) underwent urinary diversion: 23 (48.9%) underwent double-J stenting and 21 (44.7%) underwent percutaneous nephrostomy. The most common reason for urinary diversion was acute kidney injury (53.3%). Recovery of renal function was observed in 55.8% of the patients after urinary diversion. The most frequently identified complications after urinary diversion were urinary tract infection (24.4%), hematuria (17.0%), and urinary sepsis (14.9%). The median survival after hydronephrosis diagnosis was 6.43 months (interquartile range, 1.91-14.81 months). In patients who underwent urinary decompression, the median survival after urinary diversion was 8.67 months (interquartile range, 2.99-17.28 months). In the multivariate analysis, a lower grade of hydronephrosis and cancer cachexia negatively impacted survival. Conclusions: Cancer patients with MUO have a poor prognosis; therefore, the risk-benefit ratio of urinary diversion should be carefully considered. Cachexia and hydronephrosis grade can be useful in selecting suitable candidates for urinary diversion.

6.
Endocrinol Diabetes Nutr (Engl Ed) ; 71(2): 53-60, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38493008

RESUMO

SUBJECT-MATTER: To assess the effect of the 2019 coronavirus (COVID-19) pandemic on gestational diabetes (GDM). MATERIAL AND METHODS: In this retrospective, multicentre, non-interventional study carried out in Castilla-La Mancha, Spain, we compared 663 women with GDM exposed to the pandemic (pandemic group), with 622 women with GDM seen one year earlier (pre-pandemic group). The primary endpoint was a Large for Gestational Age (LGA) newborn as an indicator of poor GDM control. Secondary endpoints included obstetric and neonatal complications. RESULTS: During the pandemic, the gestational week at diagnosis (24.2 ±â€¯7.4 vs 22.9 ±â€¯7.7, p = 0.0016) and first visit to Endocrinology (26.6 ±â€¯7.2 vs 25.3 ±â€¯7.6, p = 0.0014) were earlier. Face-to-face consultations were maintained in most cases (80.3%). The new diagnostic criteria for GDM were used in only 3% of cases. However, in the pandemic group, the final HbA1c was higher (5.2 ±â€¯0.48 vs 5.29 ±â€¯0.44%, p = 0.047) and there were more LGA newborns (8.5% vs 12.8%, p = 0.015). There were no differences in perinatal complications. CONCLUSIONS: Care for GDM in our Public Health System did not significantly deteriorate during the COVID-19 pandemic. However, this did not prevent a higher number of LGA newborns.


Assuntos
COVID-19 , Diabetes Gestacional , Gravidez , Recém-Nascido , Feminino , Humanos , Diabetes Gestacional/epidemiologia , Diabetes Gestacional/diagnóstico , Pandemias , Resultado da Gravidez , Estudos Retrospectivos , Espanha/epidemiologia
7.
Bioinformatics ; 40(2)2024 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-38366652

RESUMO

SUMMARY: Spatial transcriptomics has changed our way to study tissue structure and cellular organization. However, there are still limitations in its resolution, and most available platforms do not reach a single cell resolution. To address this issue, we introduce SpatialDDLS, a fast neural network-based algorithm for cell type deconvolution of spatial transcriptomics data. SpatialDDLS leverages single-cell RNA sequencing data to simulate mixed transcriptional profiles with predefined cellular composition, which are subsequently used to train a fully connected neural network to uncover cell type diversity within each spot. By comparing it with two state-of-the-art spatial deconvolution methods, we demonstrate that SpatialDDLS is an accurate and fast alternative to the available state-of-the art tools. AVAILABILITY AND IMPLEMENTATION: The R package SpatialDDLS is available via CRAN-The Comprehensive R Archive Network: https://CRAN.R-project.org/package=SpatialDDLS. A detailed manual of the main functionalities implemented in the package can be found at https://diegommcc.github.io/SpatialDDLS.


Assuntos
Algoritmos , Software , Perfilação da Expressão Gênica , Redes Neurais de Computação
8.
Index enferm ; 33(1): [e14600], 2024.
Artigo em Espanhol | IBECS | ID: ibc-232592

RESUMO

Objetivo principal: analizar cuantitativamente la producción de las tesis doctorales en materia sanitaria relacionadas con el género en España. Metodología: síntesis cuantitativa de indicadores de productividad de las tesis doctorales conseguidas en la base de datos española TESEO y defendidas en Universidades españolas entre 1976 y 2022. Los análisis empleados han sido descriptivos y el cálculo de predicción se basó en la metodología del modelo Holt-Winters. Resultados principales: el 18,75% de las tesis defendidas pertenecen a una Universidad de Madrid. El 75% de ellas son defendidas por graduados en Medicina. La temática de las tesis es en el 25% la violencia de género. El 87,5% son doctoras, pero solamente el 44% de las mujeres dirigen tesis. La predicción para los futuros 24 años indica que se generará alrededor de 1 tesis al año. Conclusión principal: la investigación española en tesis doctorales clínicas de género es escasa y masculinizada.(AU)


Main objective: to quantitatively analyze the production of gender-related doctoral theses in health in Spain. Methodology: quantitative synthesis of productivity indicators of the doctoral theses obtained in the Spanish TESEO database and defended in Spanish Universities between 1976 and 2022. The analyzes used have been descriptive and the prediction calculation was based on the methodology of the Holt- Winters. Main results: 18.75% of the theses defended belong to a University of Madrid. 75% of them are defended by graduates in Medicine. The theme of the theses is gender violence in 25%. 87.5% are doctors, but only 44% of women direct theses. The prediction for the future 24 years indicates that around 1 thesis will be generated per year. Main conclusion: Spanish research in gender clinical doctoral theses is scarce and masculinized.(AU)


Assuntos
Humanos , Masculino , Feminino , Ciências da Saúde/educação , Dissertações Acadêmicas como Assunto , Perspectiva de Gênero , Sexismo , Espanha
9.
J Med Virol ; 95(12): e29287, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-38084763

RESUMO

To evaluate the prevalence of transmitted drug resistance (TDR) to nucleoside and nonnucleoside reverse transcriptase inhibitors (NRTI, NNRTI), protease inhibitors (PI), and integrase strand transfer inhibitors (INSTI) in Spain during the period 2019-2021, as well as to evaluate transmitted clinically relevant resistance (TCRR) to antiretroviral drugs. Reverse transcriptase (RT), protease (Pro), and Integrase (IN) sequences from 1824 PLWH (people living with HIV) were studied. To evaluate TDR we investigated the prevalence of surveillance drug resistance mutations (SDRM). To evaluate TCRR (any resistance level ≥ 3), and for HIV subtyping we used the Stanford v.9.4.1 HIVDB Algorithm and an in-depth phylogenetic analysis. The prevalence of NRTI SDRMs was 3.8% (95% CI, 2.8%-4.6%), 6.1% (95% CI, 5.0%-7.3%) for NNRTI, 0.9% (95% CI, 0.5%-1.4%) for PI, and 0.2% (95% CI, 0.0%-0.9%) for INSTI. The prevalence of TCRR to NRTI was 2.1% (95% CI, 1.5%-2.9%), 11.8% for NNRTI, (95% CI, 10.3%-13.5%), 0.2% (95% CI, 0.1%-0.6%) for PI, and 2.5% (95% CI, 1.5%-4.1%) for INSTI. Most of the patients were infected by subtype B (79.8%), while the majority of non-Bs were CRF02_AG (n = 109, 6%). The prevalence of INSTI and PI resistance in Spain during the period 2019-2021 is low, while NRTI resistance is moderate, and NNRTI resistance is the highest. Our results support the use of integrase inhibitors as first-line treatment in Spain. Our findings highlight the importance of ongoing surveillance of TDR to antiretroviral drugs in PLWH particularly with regard to first-line antiretroviral therapy.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Humanos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Espanha/epidemiologia , Filogenia , Fármacos Anti-HIV/farmacologia , Fármacos Anti-HIV/uso terapêutico , Antirretrovirais/farmacologia , Antirretrovirais/uso terapêutico , Integrases/genética , Integrases/uso terapêutico , Mutação , Farmacorresistência Viral/genética , Inibidores da Transcriptase Reversa/farmacologia , Inibidores da Transcriptase Reversa/uso terapêutico , Prevalência
10.
J Clin Med ; 12(23)2023 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-38068345

RESUMO

BACKGROUND: Sexualized drug use (SDU) has become a public health concern in recent years. This study aimed to estimate the prevalence of SDU in gay, bisexual, and other men who have sex with men living with HIV (HIV + GBMSM) in Madrid during 2019/2020 and compare it with data from 2016/2017 in order to detect changes in patterns. METHODS: We analyzed the frequency of SDU in a sample of HIV + GBMSM attending HIV clinics, who participated in an anonymous online survey regarding sexual behavior and recreational drug use. The association between SDU, sexual risk behaviors, and STIs was evaluated. RESULTS: This study included 424 HIV + GBMSM, with a mean age of 40 (10.43) years. Overall, 94% (396) reported being sexually active. Additionally, 33% (140) had been diagnosed with an STI within the previous year. Moreover, 54% (229) had used drugs in the last year, 25% (107) engaged in SDU, and 16% (17) reported engagement in slamsex. After adjusting for confounding factors, SDU was associated with STIs, fisting, unprotected anal intercourse, and having >24 sexual partners in the last year. According to the DUDIT test scores, 80% (81) probably had problematic drug use (≥6 points), and 8% (8) probable drug dependence (≥25 points). When comparing the U-SEX-1 (2016/2017) data with the U-SEX-2 (2019/2020) data, no significant differences were found in the proportion of participants practicing SDU or slamming. CONCLUSIONS: The prevalence of SDU among HIV + GBMSM has remained high in recent years and without significant changes. The risk of problematic drug use among those who practice SDU is high. We observed a clear association between SDU, high-risk sexual behaviors, and STIs.

11.
Cir Cir ; 91(5): 713-715, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37844892

RESUMO

Iatrogenic bile duct injury is a rare complication, although feared due to its morbidity and mortality. In urgent surgeries, its incidence can be doubled, so in selected cases we must assess the use of resources such as indocyanine green to minimize the risk of biliary or arterial lesions by allowing the correct identification of the structures. We present the case of a 57-year-old patient with acute cholecystitis who underwent laparoscopic cholecystectomy. Given the difficulty in differentiating structures in Calot's triangle, the decision was made to use indocyanine green, which identifies a very short cystic duct, thus avoiding iatrogenic bile duct injury.


La lesión iatrogénica de vía biliar es una complicación infrecuente, aunque temida por su morbimortalidad. En cirugías urgentes, su incidencia puede duplicarse, por lo que en casos seleccionados debemos valorar la utilización de recursos como el verde de indocianina para minimizar el riesgo de lesiones biliares o arteriales, al permitir una correcta identificación de las estructuras. Presentamos el caso de una paciente de 57 años con colecistitis aguda a la que realizamos colecistectomía laparoscópica. Ante la dificultad en la diferenciación de estructuras en el triángulo de Calot, se decidió utilizar verde de indocianina, que identificó un conducto cístico muy corto, evitando así una lesión iatrogénica de vía biliar.


Assuntos
Traumatismos Abdominais , Sistema Biliar , Colecistectomia Laparoscópica , Humanos , Pessoa de Meia-Idade , Verde de Indocianina , Colangiografia , Colecistectomia Laparoscópica/efeitos adversos , Doença Iatrogênica/prevenção & controle
12.
Curr Urol ; 17(2): 130-134, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37691992

RESUMO

Background: Primary testicular lymphoma (PTL) is a rare testicular malignancy, despite being considered the most common testicular tumor in patients older than 60 years. Primary testicular lymphoma represents only 1%-9% of testicular neoplasms. Few studies have been published regarding its clinical features and management. This study aimed to analyze the clinical characteristics and outcomes of PTL. Materials and methods: Orchiectomy specimens of 15 patients with PTL diagnosed during 2000-2020 at our institution were retrospectively studied. We collected information on demographic data, clinical features, management aspects, and outcomes of PTL treatment. Kaplan-Meier survival curves and Cox regression analyses were used to study survival. Results: The median patient age was 69 years (interquartile range, 61-72 years). The most prevalent clinical presentation was testicular swelling (80%), and only 13.33% of the patients presented with systemic symptoms. Central nervous system involvement was detected in 6 patients (40%). Of the 15 patients, 5 (33.33%) had stage IE and 10 (66.67%) had stage IVE lymphoma. Diffuse large B-cell lymphoma was the most common histological subtype. Twelve patients (80%) received chemotherapy. During follow-up, 4 patients (26.67%) relapsed. The recurrence rate in the contralateral testicle was 13.33%. The median cancer-specific survival was 21.58 months (95% confidence interval, 0-43.95 months). Univariate Cox regression analysis showed that central nervous system involvement and International Prognostic Index score were significantly associated with shorter cancer-specific survival. Conclusions: Primary testicular lymphoma has a high relapse rate and poor prognosis. Management strategies typically include radical orchiectomy and systemic chemotherapy. Central nervous system involvement and International Prognostic Index scores were associated with lymphoma-specific survival.

13.
Artigo em Inglês | MEDLINE | ID: mdl-37573244

RESUMO

OBJECTIVE: To assess the trend in hepatitis A, hepatitis B, pneumococcal, tetanus and seasonal influenza vaccination in people with HIV infection and to analyse associated factors. METHODS: The Hospital Survey of Patients with HIV, an annual cross-sectional study conducted on a fixed day (2006-2021), was used. Inpatients and outpatients were included. Trends in vaccination and associated factors were analysed using logistic regression. RESULTS: A total of 8643 participants were included. Vaccination rates increased to 65.3% for hepatitis A, 83.7% for hepatitis B, 49.3% for tetanus, 68.9% for pneumococcal and 74.5% for seasonal influenza in 2021. Factors positively associated with vaccination were older age for pneumococcal and influenza vaccination; higher educational level for hepatitis A and tetanus; living in a closed institutions or prison for tetanus, pneumococcal and influenza; and having acquired HIV through sex between men for hepatitis A, B and pneumococcal. In addition, being on antiretroviral treatment and having a high CD4 count were positively associated with vaccination for all these diseases. Factors inversely associated with vaccination were being older (hepatitis A, B and tetanus), being an immigrant (tetanus and seasonal influenza) and being an injection drug user/ex-user for hepatitis A and B. CONCLUSIONS: Vaccination in people with HIV has increased in the study period. The results are in line with the recommendations in this population, although there is still room to reach the established vaccination indicators.

14.
Cell Mol Immunol ; 20(9): 1063-1076, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37474714

RESUMO

Germinal centers (GCs) are essential for the establishment of long-lasting antibody responses. GC B cells rely on post-transcriptional RNA mechanisms to translate activation-associated transcriptional programs into functional changes in the cell proteome. However, the critical proteins driving these key mechanisms are still unknown. Here, we show that the RNA binding proteins TIA1 and TIAL1 are required for the generation of long-lasting GC responses. TIA1- and TIAL1-deficient GC B cells fail to undergo antigen-mediated positive selection, expansion and differentiation into B-cell clones producing high-affinity antibodies. Mechanistically, TIA1 and TIAL1 control the transcriptional identity of dark- and light-zone GC B cells and enable timely expression of the prosurvival molecule MCL1. Thus, we demonstrate here that TIA1 and TIAL1 are key players in the post-transcriptional program that selects high-affinity antigen-specific GC B cells.


Assuntos
Apoptose , Centro Germinativo , Proteína de Sequência 1 de Leucemia de Células Mieloides , Biossíntese de Proteínas , Proteínas de Ligação a RNA , Animais , Camundongos , Antígenos/metabolismo , Linfócitos B , Centro Germinativo/metabolismo , Centro Germinativo/patologia , Camundongos Endogâmicos C57BL , Proteína de Sequência 1 de Leucemia de Células Mieloides/genética , Proteína de Sequência 1 de Leucemia de Células Mieloides/metabolismo , Proteínas de Ligação a RNA/metabolismo
15.
Front Immunol ; 14: 1197289, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37520527

RESUMO

The organization of the mitochondrial network is relevant for the metabolic fate of T cells and their ability to respond to TCR stimulation. This arrangement depends on cytoskeleton dynamics in response to TCR and CD28 activation, which allows the polarization of the mitochondria through their change in shape, and their movement along the microtubules towards the immune synapse. This work focus on the role of End-binding protein 1 (EB1), a protein that regulates tubulin polymerization and has been previously identified as a regulator of intracellular transport of CD3-enriched vesicles. EB1-interferred cells showed defective intracellular organization and metabolic strength in activated T cells, pointing to a relevant connection of the cytoskeleton and metabolism in response to TCR stimulation, which leads to increased AICD. By unifying the organization of the tubulin cytoskeleton and mitochondria during CD4+ T cell activation, this work highlights the importance of this connection for critical cell asymmetry together with metabolic functions such as glycolysis, mitochondria respiration, and cell viability.


Assuntos
Linfócitos T CD4-Positivos , Proteínas Associadas aos Microtúbulos , Mitocôndrias , Células Jurkat , Humanos , Proteínas Associadas aos Microtúbulos/metabolismo , Linfócitos T CD4-Positivos/metabolismo , Mitocôndrias/metabolismo , Tubulina (Proteína)/metabolismo , Citoesqueleto/metabolismo , Receptores de Antígenos de Linfócitos T/metabolismo , Antígenos CD28/metabolismo , Potencial da Membrana Mitocondrial , Sinapses Imunológicas
16.
J Antimicrob Chemother ; 78(6): 1423-1432, 2023 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-37099559

RESUMO

OBJECTIVES: To assess the effectiveness and tolerability of dolutegravir (DTG)/lamivudine (3TC) among treatment-naive and virologically suppressed treatment-experienced individuals in the multicentre cohort of the Spanish HIV/AIDS Research Network (CoRIS) during the years 2018-2021. METHODS: We used multivariable regression models to compare viral suppression (VS) [HIV RNA viral load (VL) <50 copies/mL] and the change in CD4 cell counts at 24 and 48 (±12) weeks after initiation with dolutegravir/lamivudine or other first-line ART regimens. RESULTS: We included 2160 treatment-naive subjects, among whom 401 (18.6%) started with dolutegravir/lamivudine. The remaining subjects started bictegravir (BIC)/emtricitabine (FTC)/tenofovir alafenamide (TAF) (n = 949, 43.9%), DTG + FTC/tenofovir disoproxil fumarate (TDF) (n = 282, 13.1%), DTG/3TC/abacavir (ABC) (n = 255, 11.8%), darunavir (DRV)/cobicistat(COBI)/FTC/TAF (n = 147, 6.8%) and elvitegravir (EVG)/COBI/FTC/TAF (n = 126, 5.8%). At 24 and 48 weeks after starting dolutegravir/lamivudine, 91.4% and 93.8% of the subjects, respectively, achieved VS. The probability of achieving VS with dolutegravir/lamivudine was not significantly different compared with any other regimen at 24 or 48 weeks, with the exception of a lower chance of achieving VS at 24 weeks for DRV/COBI/FTC/TAF (adjusted OR: 0.47; 95% CI: 0.30-0.74) compared with dolutegravir/lamivudine.For the analysis of treatment-experienced virally suppressed subjects we included 1456 individuals who switched to dolutegravir/lamivudine, among whom 97.4% and 95.5% maintained VS at 24 and 48 weeks, respectively. During the first 48 weeks after dolutegravir/lamivudine initiation, 1.0% of treatment-naive and 1.5% of treatment-experienced subjects discontinued dolutegravir/lamivudine due to an adverse event. CONCLUSIONS: In this large multicentre cohort, effectiveness and tolerability of dolutegravir/lamivudine were high among treatment-naive and treatment-experienced subjects.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , HIV-1 , Humanos , Fármacos Anti-HIV/efeitos adversos , Infecções por HIV/tratamento farmacológico , Lamivudina/efeitos adversos , Oxazinas/uso terapêutico , Compostos Heterocíclicos com 3 Anéis/efeitos adversos , Piridonas/uso terapêutico , Emtricitabina/uso terapêutico
17.
Artigo em Inglês | MEDLINE | ID: mdl-36901480

RESUMO

The first waves of the COVID-19 pandemic were times of great change in the lives of university students and their families in Spain. The aim of this study was to explore the psychosocial aspects and preventive measures carried out during the COVID-19 pandemic by students and family members of the nursing degree students of the University of Valladolid (Spain). The number of people surveyed was 877, by means of an ad hoc questionnaire. Relationships between variables were established by means of the Chi-square test and Student's t-test. In addition, multivariate logistic regression was generated. The significance level used was 0.05. Students and family members maintained preventive measures= such as hand washing, correct use of masks =in closed places, avoiding crowds and maintaining social distance, but at low rates (close to 20% in all cases). Regarding psychosocial aspects, 41.07% of the participants suffered from anxiety and loneliness, while 5.2% needed to take drugs to reduce anxiety or sleep and 66.07% were dependent on technology. Suicidal behavior is related to stress, anxiety, loneliness, poor family relationships, psychotropic drug use and technology abuse. The pandemic has caused life changes in university students and their families at the psychosocial level, generating high figures of suicidal ideation regardless of age. Preventive measures adopted to control the pandemic have not been followed for the most part.


Assuntos
COVID-19 , Estudantes de Enfermagem , Humanos , Espanha , Pandemias , Universidades , Família , Depressão
18.
HIV Med ; 24(6): 727-737, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36810955

RESUMO

OBJECTIVES: To describe prevalence and factors associated with unplanned pregnancies, and social and partner support during pregnancy among women from the Cohort of the Spanish HIV/AIDS Research Network (CoRIS). METHODS: We included all women recruited in CoRIS from 2004 to 2019, aged 18-50 years at recruitment who were pregnant during 2020. We designed a questionnaire, organized into the following domains: sociodemographic characteristics, tobacco and alcohol consumption, pregnancy and reproductive health, and social and partner support. The information was gathered via telephone interviews conducted from June to December 2021. We calculated prevalence of unplanned pregnancies as well as odds ratios (ORs) of association and 95% confidence intervals (CIs) according to sociodemographic, clinical and reproductive characteristics. RESULTS: Among 53 women who were pregnant during 2020, 38 (71.7%) answered the questionnaire. Median age at pregnancy was 36 years [interquartile range (IQR) 31-39], 27 (71.1%) women were born outside of Spain, mainly in sub-Saharan Africa (39.5%) and 17 (44.7%) were employed. Thirty-four (89.5%) women had been through previous pregnancies and 32 (84.2%) had experienced previous abortions/miscarriages. Seventeen (44.7%) women had shared with their clinician their desire to get pregnant. Thirty-four (89.5%) pregnancies were natural and four used assisted reproductive techniques (in vitro fertilizations; one additionally used oocyte donation). Of 34 women with natural pregnancies, pregnancy was unplanned in 21 (61.8%) and 25 (73.5%) had information on how to become pregnant avoiding HIV transmission to the baby and partner. Women who did not seek advice from their physician about becoming pregnant had a significantly increased risk of unplanned pregnancy (OR = 71.25, 95% CI: 8.96-566.67). Overall, 14 (36.8%) women reported having low social support during pregnancy and 27 (71.0%) had good/very good support by their partner. CONCLUSIONS: Most pregnancies were natural and unplanned and very few women had talked with their clinician about their desire to become pregnant. A high proportion of women reported low social support during pregnancy.


Assuntos
Infecções por HIV , Gravidez não Planejada , Gravidez , Feminino , Humanos , Masculino , Infecções por HIV/epidemiologia , Apoio Social , Espanha/epidemiologia
19.
Toxicon ; 225: 107051, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36804606

RESUMO

The Azorean dairy industry is based on a semi-intensive model. Due to the few storage facilities and the large climatic fluctuations that characterize the Azores, the complete feed mixture (total mixed ration - TMR) is susceptible to the proliferation of a variety of fungi and mycotoxin contamination. Thus, chronic ingestion of these xenobiotics may lead to increased susceptibility to disease, loss of reproductive performance and, in the case of dairy cattle, decreased productivity and quality of milk produced. Since it is impossible to eliminate completely the presence of mycotoxins, it is essential to ensure the implementation of strategies to reduce their concentration in products intended for food and feed, as well as to monitor and control the levels present in food. This study aimed to evaluate the occurrence zearalenone (ZEA) in feed (TMR) in four dairy cattle farms on the Azorean Island of São Miguel and relate it to the occurrence of this mycotoxin in the milk produced, by associating several production and health indicators translated by the monthly milk contrast. To this end, the monthly milk contrast data, the determination of ZEA in the ingested feed and the (individual) milk samples from the four farms included in the study were used. Eighty-three (98.8%) of the milk samples under study had detectable ZEA levels (1.56 ± 1.36 µg/L), higher than reported in previous similar studies. Although ZEA concentration was not significantly associated with any production indicator analyzed (days in milk, age at calving, milk yield, protein content, butyrate content, somatic cell concentration and urea), it was found that the production regime and type of feed management is a major factor in the exposure of animals to high mycotoxin contents. Further studies are recommended to ensure continued monitoring and reduction of the risk associated with exposure of animals and humans to ZEA.


Assuntos
Micotoxinas , Zearalenona , Humanos , Animais , Bovinos , Fazendas , Ração Animal/análise , Micotoxinas/análise , Leite/química , Medição de Risco
20.
Eur J Intern Med ; 110: 54-61, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36764905

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is one of the most important liver comorbidities in people living with HIV (PLWH). Factors that could lead to a higher prevalence of NAFLD or ease the onset of fibrosis are unclear. METHODS: Cohort study of the Spanish HIV Research Network, which comprehends 46 hospitals and more than 15,000 PLWH. Primary objectives were to assess NAFLD prevalence and liver fibrosis according to hepatic steatosis index (HSI) and NAFLD fibrosis score, respectively. Factors associated with both were analysed. RESULTS: A total of 4798 PLWH were included of whom 1461 (30.5%) showed an HSI>36; these patients had higher risk for significant fibrosis (OR 1.91; 95%CI 1.11-3.28). Factors associated with NAFLD were body mass index (OR 2.05; 95%CI 1.94-2.16) and diabetes (OR 4.68; 95%CI 2.17-10.08), while exposure to integrase strand transfer inhibitors showed a lower risk (OR 0.78; 95%CI 0.62-0.97). In patients with HSI>36, being female (OR 7.33; 95%CI 1.34-40), age (OR 1.22; 95%CI 1.11-1.34), body mass index (OR 1.35; 95%CI 1.18-1.54) and exposure to thymidine analogues (OR 75.4, 95%CI 6.9-823.5) were associated with a higher risk of significant fibrosis. However, exposure to non-nucleoside reverse transcriptase inhibitors (OR 0.12, 95%CI 0.02-0.89) and time of exposure to protease inhibitors (OR 0.97, 95%CI 0.95-1) showed a lower risk. CONCLUSION: NAFLD prevalence was high in our cohort. Patients exposed to INSTI showed a lower risk of NAFLD. In patients with hepatic steatosis, exposure to thymidine analogues had 75-fold more risk of significant fibrosis while exposure to NNRTIs reduced this risk.


Assuntos
Infecções por HIV , Hepatopatia Gordurosa não Alcoólica , Humanos , Feminino , Masculino , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Prevalência , Estudos de Coortes , Espanha/epidemiologia , Cirrose Hepática/epidemiologia , Cirrose Hepática/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/complicações
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