22 research outputs found

    Adenovirus-mediated suppression of hypothalamic glucokinase affects feeding behavior

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    Glucokinase (GK), the hexokinase involved in glucosensing in pancreatic β-cells, is also expressed in arcuate nucleus (AN) neurons and hypothalamic tanycytes, the cells that surround the basal third ventricle (3V). Several lines of evidence suggest that tanycytes may be involved in the regulation of energy homeostasis. Tanycytes have extended cell processes that contact the feeding-regulating neurons in the AN, particularly, agouti-related protein (AgRP), neuropeptide Y (NPY), cocaine- and amphetamine-regulated transcript (CART) and proopiomelanocortin (POMC) neurons. In this study, we developed an adenovirus expressing GK shRNA to inhibit GK expression in vivo. When injected into the 3V of rats, this adenovirus preferentially transduced tanycytes. qRT-PCR and Western blot assays confirmed GK mRNA and protein levels were lower in GK knockdown animals compared to the controls. In response to an intracerebroventricular glucose injection, the mRNA levels of anorexigenic POMC and CART and orexigenic AgRP and NPY neuropeptides were altered in GK knockdown animals. Similarly, food intake, meal duration, frequency of eating events and the cumulative eating time were increased, whereas the intervals between meals were decreased in GK knockdown rats, suggesting a decrease in satiety. Thus, GK expression in the ventricular cells appears to play an important role in feeding behavior.Fil: Uranga, Romina Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad de Concepción; ChileFil: Millán, Carola. Universidad de Concepción; Chile. Universidad Adolfo Ibañez; ChileFil: Barahona, María José. Universidad de Concepción; ChileFil: Recabal, Antonia. Universidad de Concepción; ChileFil: Salgado, Magdiel. Universidad de Concepción; ChileFil: Martinez, Fernando. Universidad de Concepción; ChileFil: Ordenes, Patricio. Universidad de Concepción; ChileFil: Elizondo Vega, Roberto. Universidad de Concepción; ChileFil: Sepúlveda, Fernando. Universidad de Concepción; ChileFil: Uribe, Elena. Universidad de Concepción; ChileFil: García Robles, María de los Ángeles. Universidad de Concepción; Chil

    Treatment with tocilizumab or corticosteroids for COVID-19 patients with hyperinflammatory state: a multicentre cohort study (SAM-COVID-19)

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    Objectives: The objective of this study was to estimate the association between tocilizumab or corticosteroids and the risk of intubation or death in patients with coronavirus disease 19 (COVID-19) with a hyperinflammatory state according to clinical and laboratory parameters. Methods: A cohort study was performed in 60 Spanish hospitals including 778 patients with COVID-19 and clinical and laboratory data indicative of a hyperinflammatory state. Treatment was mainly with tocilizumab, an intermediate-high dose of corticosteroids (IHDC), a pulse dose of corticosteroids (PDC), combination therapy, or no treatment. Primary outcome was intubation or death; follow-up was 21 days. Propensity score-adjusted estimations using Cox regression (logistic regression if needed) were calculated. Propensity scores were used as confounders, matching variables and for the inverse probability of treatment weights (IPTWs). Results: In all, 88, 117, 78 and 151 patients treated with tocilizumab, IHDC, PDC, and combination therapy, respectively, were compared with 344 untreated patients. The primary endpoint occurred in 10 (11.4%), 27 (23.1%), 12 (15.4%), 40 (25.6%) and 69 (21.1%), respectively. The IPTW-based hazard ratios (odds ratio for combination therapy) for the primary endpoint were 0.32 (95%CI 0.22-0.47; p < 0.001) for tocilizumab, 0.82 (0.71-1.30; p 0.82) for IHDC, 0.61 (0.43-0.86; p 0.006) for PDC, and 1.17 (0.86-1.58; p 0.30) for combination therapy. Other applications of the propensity score provided similar results, but were not significant for PDC. Tocilizumab was also associated with lower hazard of death alone in IPTW analysis (0.07; 0.02-0.17; p < 0.001). Conclusions: Tocilizumab might be useful in COVID-19 patients with a hyperinflammatory state and should be prioritized for randomized trials in this situatio

    Role of age and comorbidities in mortality of patients with infective endocarditis

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    [Purpose]: The aim of this study was to analyse the characteristics of patients with IE in three groups of age and to assess the ability of age and the Charlson Comorbidity Index (CCI) to predict mortality. [Methods]: Prospective cohort study of all patients with IE included in the GAMES Spanish database between 2008 and 2015.Patients were stratified into three age groups:<65 years,65 to 80 years,and ≥ 80 years.The area under the receiver-operating characteristic (AUROC) curve was calculated to quantify the diagnostic accuracy of the CCI to predict mortality risk. [Results]: A total of 3120 patients with IE (1327 < 65 years;1291 65-80 years;502 ≥ 80 years) were enrolled.Fever and heart failure were the most common presentations of IE, with no differences among age groups.Patients ≥80 years who underwent surgery were significantly lower compared with other age groups (14.3%,65 years; 20.5%,65-79 years; 31.3%,≥80 years). In-hospital mortality was lower in the <65-year group (20.3%,<65 years;30.1%,65-79 years;34.7%,≥80 years;p < 0.001) as well as 1-year mortality (3.2%, <65 years; 5.5%, 65-80 years;7.6%,≥80 years; p = 0.003).Independent predictors of mortality were age ≥ 80 years (hazard ratio [HR]:2.78;95% confidence interval [CI]:2.32–3.34), CCI ≥ 3 (HR:1.62; 95% CI:1.39–1.88),and non-performed surgery (HR:1.64;95% CI:11.16–1.58).When the three age groups were compared,the AUROC curve for CCI was significantly larger for patients aged <65 years(p < 0.001) for both in-hospital and 1-year mortality. [Conclusion]: There were no differences in the clinical presentation of IE between the groups. Age ≥ 80 years, high comorbidity (measured by CCI),and non-performance of surgery were independent predictors of mortality in patients with IE.CCI could help to identify those patients with IE and surgical indication who present a lower risk of in-hospital and 1-year mortality after surgery, especially in the <65-year group

    ¿Sabes lo que comes?

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    Experiencia orientada a la integración de la Educación para la Salud en el proyecto curricular, y a favorecer su desarrollo como materia transversal. Se pretende que el alumno reflexione sobre la importancia de la alimentación y la nutrición en la salud, que sepan cómo mejorarla, e intenten modificar aquellos hábitos alimentarios que perjudiquen su salud. La evaluación del alumno será continua a lo largo del curso mediante pruebas, corrección de las prácticas en el laboratorio, y su participación activa y crítica..Madrid (Comunidad Autónoma). Consejería de Sanidad y Servicios SocialesMadridNo disponibleES

    No estés ausente..!

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    Tesis (Psicopedagogo, Licenciado en Educación)NO ESTÉS AUSENTE! El inicio del año lectivo, con el que se señalaba el comienzo de un nuevo milenio, nos sorprendió con este eslogan en los distintos medios de comunicación y transporte, calles, escuelas y liceos. El logo del Ministerio de Educación de Chile como colofón, firmando la campaña, en los distintos elementos publicitarios, nos despertó interés. Esta campaña se relacionaba con nosotras, como estudiantes y como futuras profesionales de la educación, por ser una inquietud constante la influencia que tienen los padres y madres en la educación de sus hijos e hijas. Si bien, el nombre de la campaña "No estés ausente, involúcrate en la educación de tus hijos e hijas", no es un tema nuevo y todos están de acuerdo con esta afirmación, también es cierto que no se le ha tomado el peso a lo que significa, realmente, estar involucrado constantemente en la educación de las hijas e hijos. Muchos creen que por el simple hecho de matricularlos en un establecimiento escolar y asistir a las reuniones, basta para sentirse partícipe de su educación. Así es como la educación requiere, para su éxito, de la activa y comprometida acción de padres, madres y apoderados, aún más de la familia en su totalidad

    Shorter Time to Discontinuation Due to Treatment Failure in People Living with HIV Switched to Dolutegravir Plus Either Rilpivirine or Lamivudine Compared with Integrase Inhibitor-Based Triple Therapy in a Large Spanish Cohort.

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    Standard therapy for HIV treatment has consisted of two nucleoside analogue reverse transcriptase inhibitors (NRTI) paired with a third agent. Use of two-drug regimens (2DR) has been considered for selected patients in part to avoid toxicities associated with the use of NRTIs. This study aimed to compare the real-world outcomes of integrase inhibitor (INSTI)-based three-drug regimens (3DR) versus 2DR of dolutegravir (DTG) + rilpivirine (RPV) or DTG + lamivudine (3TC). All patients in the Spanish VACH cohort switching to INSTI-based 3DR or a 2DR consisting of DTG + RPV or DTG + 3TC between May 2, 2016 and May 15, 2019 were included. Kaplan-Meier curves and Cox proportional hazard models were used to assess time to/risk of discontinuation due to treatment failure (TF) (defined as virologic failure [VF], immunologic failure, or disease progression) and adverse events (AEs). Three secondary analyses were performed: (1) in restricting the analysis to patients who were virologically suppressed (HIV RNA  Overall, 5047 3DR and 617 2DR patients were analyzed. Baseline characteristics differed between groups; 2DR patients were older, more treatment experienced, and more likely to be virologically suppressed at switch. Time to discontinuation due to TF was significantly shorter for 2DR (P = 0.002). The hazard ratio (HR) for discontinuation due to TF on 2DR vs 3DR was 2.33 (P = 0.003). No difference was observed for time to discontinuation (P = 0.908) or risk of discontinuation due to AEs (HR = 0.80; P = 0.488). Results were qualitatively similar in virologically suppressed patients, matched analysis, and for VF. In the real world, the risks of discontinuation due to TF and VF were more than two times higher in patients switching to DTG-based 2DR than INSTI-based 3DR, with no difference in discontinuation due to AEs

    eGFR-EPI changes among HIV patients who switch from F/TDF to F/TAF while maintaining the same third agent in the Spanish VACH cohort

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    Background: Evidence from clinical practice on the effects of switching from emtricitabine/tenofovir disoproxil fumarate (F/TDF) to emtricitabine/tenofovir alafenamide (F/TAF)-based triple-therapy (TT) regimens on renal parameters is limited. Objective: This retrospective analysis evaluated the effects on renal function of switching from F/TDF to F/TAF-based TT regimens with no change in third agent among people living with HIV (PLWH). Methods: Data were from a multicenter Spanish PLWH cohort. Patients with a baseline estimated glomerular filtration rate (eGFR-EPI) measurement, ≥1 follow-up measurement, ≥30 days treatment with F/TAF, and who switched from F/TDF to F/TAF with no change in third agent were included. Multivariate mixed linear models were used to evaluate change from baseline over time in eGFR-EPI. eGFR-EPI changes before and after switch were analyzed in a matched patient subgroup. Results: Overall, 340 patients were included. Mean (95% CI) eGFR-EPI in patients with baseline eGFR-EPI <90 ml/min/1.73m2 (n = 125) was 79.6 (78.0; 81.2) ml/min/1.73m2 at baseline and 81.3 (79.9; 82.7) ml/min/1.73m2 at 12 months after switch. In the patient-matched subgroup (n = 175), median annual eGFR-EPI declined −4.24 ml/min/1.73m2 while on F/TDF and increased +0.93 ml/min/1.73m2 after switch to F/TAF (P < 0.0001). In patients with baseline eGFR-EPI <90 ml/min/1.73m2, median annual eGFR-EPI increased +4.19 mL/min/1.73m2 after switch (P < 0.0001). Conclusion: Switching from F/TDF to F/TAF-based TT regimens while maintaining the same third agent numerically improved eGFR-EPI in PLWH with baseline eGFR-EPI <90 mL/min/1.73m2. eGFR-EPI improved significantly when comparing progression while on F/TDF vs progression after switch, confirming beneficial renal effects of switching to F/TAF in a clinical practice setting
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