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Influenza A viruses (IAVs) can overcome species barriers by adaptation of the receptor-binding site of the hemagglutinin (HA). To initiate infection, HAs bind to glycan receptors with terminal sialic acids, which are either N-acetylneuraminic acid (NeuAc) or N-glycolylneuraminic acid (NeuGc); the latter is mainly found in horses and pigs but not in birds and humans. We investigated the influence of previously identified equine NeuGc-adapting mutations (S128T, I130V, A135E, T189A, and K193R) in avian H7 IAVs in vitro and in vivo. We observed that these mutations negatively affected viral replication in chicken cells but not in duck cells and positively affected replication in horse cells. In vivo, the mutations reduced virus virulence and mortality in chickens. Ducks excreted high viral loads longer than chickens, although they appeared clinically healthy. To elucidate why these viruses infected chickens and ducks despite the absence of NeuGc, we re-evaluated the receptor binding of H7 HAs using glycan microarray and flow cytometry studies. This re-evaluation demonstrated that mutated avian H7 HAs also bound to α2,3-linked NeuAc and sialyl-LewisX, which have an additional fucose moiety in their terminal epitope, explaining why infection of ducks and chickens was possible. Interestingly, the α2,3-linked NeuAc and sialyl-LewisX epitopes were only bound when presented on tri-antennary N-glycans, emphasizing the importance of investigating the fine receptor specificities of IAVs. In conclusion, the binding of NeuGc-adapted H7 IAV to tri-antennary N-glycans enables viral replication and shedding by chickens and ducks, potentially facilitating interspecies transmission of equine-adapted H7 IAVs.IMPORTANCEInfluenza A viruses (IAVs) cause millions of deaths and illnesses in birds and mammals each year. The viral surface protein hemagglutinin initiates infection by binding to host cell terminal sialic acids. Hemagglutinin adaptations affect the binding affinity to these sialic acids and the potential host species targeted. While avian and human IAVs tend to bind to N-acetylneuraminic acid (sialic acid), equine H7 viruses prefer binding to N-glycolylneuraminic acid (NeuGc). To better understand the function of NeuGc-specific adaptations in hemagglutinin and to elucidate interspecies transmission potential NeuGc-adapted viruses, we evaluated the effects of NeuGc-specific mutations in avian H7 viruses in chickens and ducks, important economic hosts and reservoir birds, respectively. We also examined the impact on viral replication and found a binding affinity to tri-antennary N-glycans containing different terminal epitopes. These findings are significant as they contribute to the understanding of the role of receptor binding in avian influenza infection.
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Pollos , Patos , Caballos , Virus de la Influenza A , Gripe Aviar , Ácidos Neuramínicos , Animales , Humanos , Pollos/genética , Pollos/metabolismo , Pollos/virología , Patos/genética , Patos/metabolismo , Patos/virología , Epítopos/química , Epítopos/metabolismo , Glicoproteínas Hemaglutininas del Virus de la Influenza/química , Glicoproteínas Hemaglutininas del Virus de la Influenza/genética , Glicoproteínas Hemaglutininas del Virus de la Influenza/metabolismo , Caballos/genética , Caballos/metabolismo , Caballos/virología , Virus de la Influenza A/química , Virus de la Influenza A/clasificación , Virus de la Influenza A/metabolismo , Gripe Aviar/genética , Gripe Aviar/transmisión , Gripe Aviar/virología , Mutación , Ácido N-Acetilneuramínico/química , Ácido N-Acetilneuramínico/metabolismo , Ácidos Neuramínicos/química , Ácidos Neuramínicos/metabolismo , Receptores Virales/química , Receptores Virales/genética , Receptores Virales/metabolismo , Porcinos/virología , Zoonosis Virales/metabolismo , Zoonosis Virales/transmisión , Zoonosis Virales/virologíaRESUMEN
This study aims to elucidate if the regulation of plant aquaporins by the arbuscular mycorrhizal (AM) symbiosis occurs only in roots or cells colonized by the fungus or at whole root system. Maize plants were cultivated in a split-root system, with half of the root system inoculated with the AM fungus and the other half uninoculated. Plant growth and hydraulic parameters were measured and aquaporin gene expression was determined in each root fraction and in microdissected cells. Under well-watered conditions, the non-colonized root fractions of AM plants grew more than the colonized root fraction. Total osmotic and hydrostatic root hydraulic conductivities (Lo and Lpr) were higher in AM plants than in non-mycorrhizal plants. The expression of most maize aquaporin genes analysed was different in the mycorrhizal root fraction than in the non-mycorrhizal root fraction of AM plants. At the cellular level, differential aquaporin expression in AM-colonized cells and in uncolonized cells was also observed. Results indicate the existence of both, local and systemic regulation of plant aquaporins by the AM symbiosis and suggest that such regulation is related to the availability of water taken up by fungal hyphae in each root fraction and to the plant need of water mobilization.
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INTRODUCTION: Extravasation is a potentially severe complication of intravenous administration of antineoplastic drugs. The limited data makes it difficult to develop an optimal management scheme. The objective of this study is to describe the clinical practice in the extravasation management of antineoplastic agents in Spanish centers. METHODS: An online survey was distributed to oncology pharmacists using the email distribution list of the Spanish Society of Hospital Pharmacists. Respondents were surveyed on the standard operational protocol (SOP) of extravasation, tissue damage risk classification, and specific measures of extravasation management. RESULTS: A total of 68 surveys were completed. A specific extravasation SOP was available in 82.4% centers. The pharmacist participates in the authorship (100%) and actively collaborates in extravasation management (76.5%). A tissue damage risk classification based on the three categories was mostly adopted (48.2%) and 73.2% applied specific criteria based on concentration and/or extravasated volume. Extravasation management was mainly performed with the application of physical measures and/or antidotes (91.2%). High variability in the choices of pharmacological and/or physical measures recommended is outstanding. CONCLUSION: The results of this study highlight the involvement of Spanish pharmacists in extravasation management, the application of physical measures and/or pharmacological measures as the method of choice in extravasation management, as well as the existing discrepancies in tissue damage risk classification and management recommendations.
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Antídotos , Antineoplásicos , Extravasación de Materiales Terapéuticos y Diagnósticos , Humanos , Antídotos/uso terapéutico , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Infusiones IntravenosasRESUMEN
Influenza A viruses (IAV) initiate infection by binding to glycans with terminal sialic acids on the cell surface. Hosts of IAV variably express two major forms of sialic acid, N-acetylneuraminic acid (NeuAc) and N-glycolylneuraminic acid (NeuGc). NeuGc is produced in most mammals, including horses and pigs, but is absent in humans, ferrets, and birds. The only known naturally occurring IAV that exclusively bind NeuGc are extinct highly pathogenic equine H7N7 viruses. We determined the crystal structure of a representative equine H7 hemagglutinin (HA) in complex with NeuGc and observed high similarity in the receptor-binding domain with an avian H7 HA. To determine the molecular basis for NeuAc and NeuGc specificity, we performed systematic mutational analyses, based on the structural insights, on two distant avian H7 HAs and an H15 HA. We found that the A135E mutation is key for binding α2,3-linked NeuGc but does not abolish NeuAc binding. The additional mutations S128T, I130V, T189A, and K193R converted the specificity from NeuAc to NeuGc. We investigated the residues at positions 128, 130, 135, 189, and 193 in a phylogenetic analysis of avian and equine H7 HAs. This analysis revealed a clear distinction between equine and avian residues. The highest variability was observed at key position 135, of which only the equine glutamic acid led to NeuGc binding. These results demonstrate that genetically distinct H7 and H15 HAs can be switched from NeuAc to NeuGc binding and vice versa after the introduction of several mutations, providing insights into the adaptation of H7 viruses to NeuGc receptors. IMPORTANCE Influenza A viruses cause millions of cases of severe illness and deaths annually. To initiate infection and replicate, the virus first needs to bind to a structure on the cell surface, like a key fitting in a lock. For influenza A viruses, these "keys" (receptors) on the cell surface are chains of sugar molecules (glycans). The terminal sugar on these glycans is often either N-acetylneuraminic acid (NeuAc) or N-glycolylneuraminic acid (NeuGc). Most influenza A viruses bind NeuAc, but a small minority bind NeuGc. NeuGc is present in species like horses, pigs, and mice but not in humans, ferrets, and birds. Here, we investigated the molecular determinants of NeuGc specificity and the origin of viruses that bind NeuGc.
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Glicoproteínas Hemaglutininas del Virus de la Influenza , Subtipo H7N7 del Virus de la Influenza A , Ácidos Neuramínicos , Animales , Glicoproteínas Hemaglutininas del Virus de la Influenza/química , Glicoproteínas Hemaglutininas del Virus de la Influenza/genética , Glicoproteínas Hemaglutininas del Virus de la Influenza/metabolismo , Caballos , Humanos , Subtipo H7N7 del Virus de la Influenza A/química , Subtipo H7N7 del Virus de la Influenza A/metabolismo , Ácido N-Acetilneuramínico , Ácidos Neuramínicos/química , Ácidos Neuramínicos/metabolismo , Filogenia , Polisacáridos/metabolismo , Unión ProteicaRESUMEN
Carbon isotope composition of tree-ring (δ13 CRing ) is a commonly used proxy for environmental change and ecophysiology. δ13 CRing reconstructions are based on a solid knowledge of isotope fractionations during formation of primary photosynthates (δ13 CP ), such as sucrose. However, δ13 CRing is not merely a record of δ13 CP . Isotope fractionation processes, which are not yet fully understood, modify δ13 CP during sucrose transport. We traced, how the environmental intra-seasonal δ13 CP signal changes from leaves to phloem, tree-ring and roots, for 7 year old Pinus sylvestris, using δ13 C analysis of individual carbohydrates, δ13 CRing laser ablation, leaf gas exchange and enzyme activity measurements. The intra-seasonal δ13 CP dynamics was clearly reflected by δ13 CRing , suggesting negligible impact of reserve use on δ13 CRing . However, δ13 CP became increasingly 13 C-enriched during down-stem transport, probably due to post-photosynthetic fractionations such as sink organ catabolism. In contrast, δ13 C of water-soluble carbohydrates, analysed for the same extracts, did not reflect the same isotope dynamics and fractionations as δ13 CP , but recorded intra-seasonal δ13 CP variability. The impact of environmental signals on δ13 CRing , and the 0.5 and 1.7 depletion in photosynthates compared ring organic matter and tree-ring cellulose, respectively, are useful pieces of information for studies exploiting δ13 CRing .
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Terapia por Láser , Pinus sylvestris , Pinus , Árboles/metabolismo , Pinus sylvestris/metabolismo , Estaciones del Año , Isótopos de Carbono/análisis , Carbohidratos/análisis , Hojas de la Planta/metabolismo , Sacarosa/metabolismo , Pinus/metabolismoRESUMEN
Acquired thrombotic thrombocytopenic purpura (TTP) is a life-threatening disorder. N-Acetylcysteine (NAC) rapidly degrades ultra-large von Willebrand factor multimers by disrupting the disulfide bonds. We report a series of twelve consecutive patients diagnosed with acquired TTP successfully treated with high-dose NAC (150 mg/kg/day) in combination with plasma exchange and steroids. Eight patients also received rituximab. Two patients presented refractory TTP. All patients achieved a quick clinical response in a median time of 5.5 days after starting NAC and are alive after a median follow-up of 29 months. The treatment was feasible and well tolerated. These data provide further evidence of the potential benefit and safety of adding NAC to the standard of care.
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Púrpura Trombocitopénica Trombótica , Humanos , Púrpura Trombocitopénica Trombótica/diagnóstico , Púrpura Trombocitopénica Trombótica/tratamiento farmacológico , Proteína ADAMTS13 , Rituximab/uso terapéutico , Intercambio Plasmático , Acetilcisteína/uso terapéuticoRESUMEN
Community mobilization (CM) is a vital yet under-explored avenue for increasing HIV testing in generalized HIV epidemic settings. Using multi-stage cluster sampling, a population-based sample of 3535 Zambian adults (mean age: 28 years, 50% women) were recruited from 14 districts to complete a household survey. Exploratory factor analysis (EFA) was used to re-validate a 23-item, 5-factor CM scale. Multivariable logistic and Poisson regression were then used to identify associations of CM with HIV testing behaviors and their psychosocial antecedents. A 21-item, 3-factor ("Leadership", "Collective Action Capacity", and "Social Cohesion") CM solution emerged from EFA (Cronbach's α 0.88). Among men and in rural settings, higher CM was significantly (p < 0.05) associated with elevated odds of HIV testing and more past-year HIV testing discussion sources, controlling for socio-demographics and sexual behaviors. Results underscore the importance of prioritizing CM to cultivate more favorable environments for HIV testing uptake, especially for men and rural residents.
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Infecciones por VIH , Masculino , Humanos , Adulto , Femenino , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Zambia/epidemiología , Prueba de VIH , Conducta Sexual , InvestigaciónRESUMEN
The COVID-19 pandemic highlights the relevance of adequate decision making at both public health and healthcare levels. A bioethical response to the demand for medical care, supplies and access to critical care is needed. Ethically sound strategies are required for the allocation of increasingly scarce resources, such as rationing critical care beds. In this regard, it is worth mentioning the so-called 'last bed dilemma'. In this paper, we examine this dilemma, pointing out the main criteria used to solve it and argue that we cannot face these ethical issues as though they are only a dilemma. A more complex ethical view regarding the care of COVID-19 patients that is focused on proportional and ordinary treatments is required. Furthermore, discussions and forward planning are essential because deliberation becomes extremely complex during an emergency and the physicians' sense of responsibility may be increased if it is faced only as a moral dilemma.
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COVID-19 , Pandemias , Humanos , Cuidados Críticos , Atención a la Salud , Principios Morales , Asignación de Recursos para la Atención de Salud , Asignación de RecursosRESUMEN
OBJECTIVE: The purposes of this study were to compare functional outcomes, radiographic stem changes and complication rate in patients with proximal humeral fractures operated with cemented or uncemented RSA. METHODS: Retrospective review of 68 primary RSAs in PHF, 45 cemented/23 uncemented. Functional outcomes were evaluated according to constant, ASES scales and the range of motion (ROM). Radiographic assessment was performed at a minimum of two years post-operatively. RESULTS: The mean follow-up cemented/uncemented was 37.8/26.5 months (p = .04) and the mean age 78/80 years old (p = .09). The functional outcome and range of movement were equivalent in the two groups except for the forward flexion that was significantly higher in the cemented group (p = .03). Stress shielding was seen in 30.4% of uncemented group and none in the cemented. Anatomic tuberosity healing was significantly higher with uncemented components compared with cemented components (64% vs 91%, p = .02). Cemented stems had radiolucent lines with a width of 2 mm or more in three or more Gruen zones in 9% vs 0% in the uncemented group and an evident change in the stem position was present in 4% vs 0% in the non-cemented group. CONCLUSION: At mid-term follow-up, no differences in functional outcomes were detected depending on the stem fixation technique. Cemented stems, however, have a complication rate (including stem loosening) significantly higher than press-fit stems.
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Artroplastía de Reemplazo de Hombro , Fracturas del Hombro , Articulación del Hombro , Anciano , Artroplastía de Reemplazo de Hombro/efectos adversos , Artroplastía de Reemplazo de Hombro/métodos , Humanos , Rango del Movimiento Articular , Estudios Retrospectivos , Fracturas del Hombro/diagnóstico por imagen , Fracturas del Hombro/etiología , Fracturas del Hombro/cirugía , Articulación del Hombro/cirugía , Resultado del TratamientoRESUMEN
BACKGROUND: Genome-edited donor-derived allogeneic anti-CD19 chimeric antigen receptor (CAR) T cells offer a novel form of CAR-T-cell product that is available for immediate clinical use, thereby broadening access and applicability. UCART19 is one such product investigated in children and adults with relapsed or refractory B-cell acute lymphoblastic leukaemia. Two multicentre phase 1 studies aimed to investigate the feasibility, safety, and antileukaemic activity of UCART19 in children and adults with relapsed or refractory B-cell acute lymphoblastic leukaemia. METHODS: We enrolled paediatric or adult patients in two ongoing, multicentre, phase 1 clinical trials to evaluate the safety and antileukaemic activity of UCART19. All patients underwent lymphodepletion with fludarabine and cyclophosphamide with or without alemtuzumab, then children received UCART19 at 1·1-2·3â×â106 cells per kg and adults received UCART19 doses of 6â×â106 cells, 6-8â×â107 cells, or 1·8-2·4â×â108 cells in a dose-escalation study. The primary outcome measure was adverse events in the period between first infusion and data cutoff. These studies were registered at ClinicalTrials.gov, NCT02808442 and NCT02746952. FINDINGS: Between June 3, 2016, and Oct 23, 2018, seven children and 14 adults were enrolled in the two studies and received UCART19. Cytokine release syndrome was the most common adverse event and was observed in 19 patients (91%); three (14%) had grade 3-4 cytokine release syndrome. Other adverse events were grade 1 or 2 neurotoxicity in eight patients (38%), grade 1 acute skin graft-versus-host disease in two patients (10%), and grade 4 prolonged cytopenia in six patients (32%). Two treatment-related deaths occurred; one caused by neutropenic sepsis in a patient with concurrent cytokine release syndrome and one from pulmonary haemorrhage in a patient with persistent cytopenia. 14 (67%) of 21 patients had a complete response or complete response with incomplete haematological recovery 28 days after infusion. Patients not receiving alemtuzumab (n=4) showed no UCART19 expansion or antileukaemic activity. The median duration of response was 4·1 months with ten (71%) of 14 responders proceeding to a subsequent allogeneic stem-cell transplant. Progression-free survival at 6 months was 27%, and overall survival was 55%. INTERPRETATION: These two studies show, for the first time, the feasibility of using allogeneic, genome-edited CAR T cells to treat patients with aggressive leukaemia. UCART19 exhibited in-vivo expansion and antileukaemic activity with a manageable safety profile in heavily pretreated paediatric and adult patients with relapsed or refractory B-cell acute lymphoblastic leukaemia. The results this study are an encouraging step forward for the field of allogeneic CAR T cells, and UCART19 offers the opportunity to treat patients with rapidly progressive disease and where autologous CAR-T-cell therapy is unavailable. FUNDING: Servier.
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Antígenos CD19/inmunología , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Receptores Quiméricos de Antígenos/uso terapéutico , Adulto , Preescolar , Síndrome de Liberación de Citoquinas/etiología , Estudios de Factibilidad , Femenino , Edición Génica , Humanos , Inmunoterapia Adoptiva/efectos adversos , MasculinoRESUMEN
Cellular and humoral response to acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections is on focus of research. We evaluate herein the feasibility of expanding virus-specific T cells (VST) against SARS-CoV-2 ex vivo through a standard protocol proven effective for other viruses. The experiment was performed in three different donors' scenarios: (a) SARS-CoV-2 asymptomatic infection/negative serology, (b) SARS-CoV-2 symptomatic infection/positive serology, and (c) no history of SARS-CoV-2 infection/negative serology. We were able to obtain an expanded VST product from donors 1 and 2 (1.6x and 1.8x increase of baseline VST count, respectively) consisting in CD3 + cells (80.3% and 62.7%, respectively) with CD4 + dominance (60% in both donors). Higher numbers of VST were obtained from the donor 2 as compared to donor 1. T-cell clonality test showed oligoclonal reproducible peaks on a polyclonal background for both donors. In contrast, VST could be neither expanded nor primed in a donor without evidence of prior infection. This proof-of-concept study supports the feasibility of expanding ex vivo SARS-CoV-2-specific VST from blood of convalescent donors. The results raise the question of whether the selection of seropositive donors may be a strategy to obtain cell lines enriched in their SARS-CoV-2-specificity for future adoptive transfer to immunosuppressed patients.
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COVID-19 , SARS-CoV-2 , Traslado Adoptivo , Linfocitos T CD4-Positivos , HumanosRESUMEN
PURPOSE: The aim of this study was to evaluate the prevalence of thyroid dysfunction in a cohort of healthy individuals in Mexico City, as well as to investigate the potential associations of these results with their estimated iodine intake (EII) as reflected by their 24-hour urinary iodine excretion (24-h UIE). METHODS: From the SALMEX cohort, 683 adults provided an appropriate 24-h urine sample. Thyroid function tests and thyroid antibody concentrations were determined in the participants' sera. We analyzed discrepancies between the commonly used urinary parameters to determine the iodine intake status and the performance of thyroglobulin (Tg) as a biomarker of its status in the adult population. RESULTS: The prevalence of dysthyroidism was high, being similar to other studies. Subclinical hypothyroidism was detected in 5.0% of individuals, clinical hypothyroidism in 1.8% of individuals, and sub-clinical hyperthyroidism in 2.8% of individuals. The median EII was 285 µg/d (IQR 215.0-369.0); 94% of individuals had EII >150 µg/d recommended daily allowance (RDA) in adults. The urinary iodine concentration (UIC) and the UIE had relative biases in their averages of 34.4%. The Tg median was 7.21 ng/mL. The prevalence of increased Tg was 6.15%. There was no correlation between Tg and EII (r= 0.019, p= 0.606). CONCLUSIONS: Thyroid dysfunction was highly prevalent in this population. Our cohort revealed a slight discrepancy between dysthyroidism manifestations and iodine intake markers; the latter represent a population with adequate iodine intake. Further studies are necessary to clearly define the prevalence of thyroid dysfunction as well as the iodine nutritional status in Mexico.
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Yodo , Estado Nutricional , Adulto , Estudios Transversales , Humanos , México/epidemiología , Prevalencia , Glándula TiroidesRESUMEN
BACKGROUND: Familial hypertriglyceridemia (FHTG) is a partially characterized primary dyslipidemia which is frequently confused with other forms hypertriglyceridemia. The aim of this work is to search for specific features that can help physicians recognize this disease. METHODS: This study included 84 FHTG cases, 728 subjects with common mild-to-moderate hypertriglyceridemia (CHTG) and 609 normotriglyceridemic controls. All subjects underwent genetic, clinical and biochemical assessments. A set of 53 single nucleotide polymorphisms (SNPs) previously associated with triglycerides levels, as well as 37 rare variants within the five main genes associated with hypertriglyceridemia (i.e. LPL, APOC2, APOA5, LMF1 and GPIHBP1) were analyzed. A panel of endocrine regulatory proteins associated with triglycerides homeostasis were compared between the FHTG and CHTG groups. RESULTS: Apolipoprotein B, fibroblast growth factor 21(FGF-21), angiopoietin-like proteins 3 (ANGPTL3) and apolipoprotein A-II concentrations, were independent components of a model to detect FHTG compared with CHTG (AUC 0.948, 95%CI 0.901-0.970, 98.5% sensitivity, 92.2% specificity, P < 0.001). The polygenic set of SNPs, accounted for 1.78% of the variance in triglyceride levels in FHTG and 6.73% in CHTG. CONCLUSIONS: The clinical and genetic differences observed between FHTG and CHTG supports the notion that FHTG is a unique entity, distinguishable from other causes of hypertriglyceridemia by the higher concentrations of insulin, FGF-21, ANGPTL3, apo A-II and lower levels of apo B. We propose the inclusion of these parameters as useful markers for differentiating FHTG from other causes of hypertriglyceridemia.
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Proteínas Similares a la Angiopoyetina/genética , Apolipoproteína A-II/genética , Factores de Crecimiento de Fibroblastos/genética , Hiperlipoproteinemia Tipo IV/diagnóstico , Hipertrigliceridemia/diagnóstico , Adulto , Proteína 3 Similar a la Angiopoyetina , Apolipoproteína A-V/genética , Apolipoproteína C-II/genética , Apolipoproteínas B/genética , Diagnóstico Diferencial , Femenino , Humanos , Hiperlipoproteinemia Tipo IV/genética , Hiperlipoproteinemia Tipo IV/metabolismo , Hiperlipoproteinemia Tipo IV/patología , Hipertrigliceridemia/genética , Hipertrigliceridemia/metabolismo , Hipertrigliceridemia/patología , Insulina/genética , Lipoproteína Lipasa/genética , Masculino , Proteínas de la Membrana/genética , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple/genética , Receptores de Lipoproteína/genética , Triglicéridos/genéticaRESUMEN
Elderly adults in southern Ecuador often distrust nutritionists' advice when implementing changes to their dietary practices. This distrust is no overt disregard for expert nutritional knowledge but rather the result of structural and situated practices that combine suspicion, misinformation, financial limitations, and family care. In this article, we examine eating practices among elderly adults in southern Ecuador in order to understand how nutrition distrust is constructed. In doing so, our aim is to understand how elderly adults incorporate-or not-expert nutritional knowledge into their eating practices. By ethnographically documenting daily eating practices among elderly adults in their homes, alongside expert nutritional discourses, our findings reveal that there is first, a local understanding of "eating healthy" connected to lived realities (e.g. farming practices, agricultural toxicity, age, education, polypharmacy, kinship ties), and second, a disconnect between expert nutritional knowledge and eating practices linked to how knowledge is produced and disseminated (e.g. power relations, scientific vocabulary, perceptions of health). Understanding how elderly adults build trust around eating can be a fertile ground for promoting more effective and suitable dietary advice among specific communities or groups like elderly adults.
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Conducta Alimentaria , Conocimientos, Actitudes y Práctica en Salud , Adulto , Anciano , Ecuador , Educación en Salud , Humanos , Estado NutricionalRESUMEN
OBJECTIVE: We assessed the prevalence of bullying and cyberbullying in 12-16-year-olds and the association with student self-reports after a police informative talk. DESIGN: We used a survey to assess the impact of the intervention: 1458 high school students received a police informative talk during the 2018-2019 school year and completed the self-administered EBIP-Q and ECI-Q questionnaires. Perceptions of conduct and bystanders' attitudes were assessed. Correspondence indexes were calculated using Cohen's kappa and gender differences studied using logistic regression. RESULTS: 81.34% (95% CI: 79.33-83.34) of students were involved in bullying and 54.75% (95% CI: 52.19-56.76) in cyberbullying. Almost 90% of participants did not perceive their real bullying correctly. Girls were more frequently victims of bullying and cyberbullying (OR = 1.67 and OR = 1.22, p = .004), but more frequently self-reported being bullies or victim/bully (OR = 0.57 and 0.39, p < .05). Male bystanders reported 7.33% (p < .001) more feelings of inadequacy than girls when witnessing bullying. CONCLUSION: Poor self-reporting reflects poor understanding of bullying and cyber-bullying. Police information sessions might produce the opposite reactions in adolescents, as they reduce bullying to visible, harmful violence. Educators should focus on adolescent relationships rather than violence prevention. A friendly, male-targeted approach is needed.
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Acoso Escolar , Víctimas de Crimen , Adolescente , Femenino , Humanos , Masculino , Policia , Prevalencia , Autoinforme , Encuestas y CuestionariosRESUMEN
BACKGROUND: Early adverse stress is a risk factor for the appearance of mental health ailments during adulthood. AIM: To systematically review treatment outcomes on mental health symptoms and functional domains, and of interventions aimed at treating adults with depressive disorders and early adverse stress (EAS). MATERIAL AND METHODS: Systematic review and meta-analysis including experimental and quasi-experimental published studies indexed in the CINAHL, EMBASE, PubMed, and Web of Science databases, which explored the effectiveness of treatment interventions for depressive disorders in adults exposed to EAS. Data on outcomes was extracted from the included studies. A narrative, qualitative approach or a quality-effects model for meta-analysis were used for synthesizing these data. RESULTS: Thirteen studies were included. Psychological or combined treatment interventions for depression in adults exposed to EAS may be effective in reducing trauma-related symptoms and social dysfunction in the short-and mid-term, with small effect size and without substantive heterogeneity. The assessment of anxiety symptoms and health-related quality of life yielded mixed results. CONCLUSIONS: Despite the ubiquity of EAS and its adverse and long-lasting consequences for well-being and health, treatment alternatives are scant. This review suggests that there are treatment interventions for depression in adults exposed to EAS that may achieve integral mental health benefits, alleviating its impact on various symptoms and functional domains, when EAS is explicitly considered in the treatment intervention.
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Trastornos Mentales , Calidad de Vida , Adulto , Ansiedad , Humanos , Trastornos Mentales/psicología , Salud Mental , Resultado del TratamientoRESUMEN
The Chilean House of Representatives is discussing the bill on "Dignified death and palliative care", which regulates the so-called medical assistance in dying or euthanasia. This paper will critically analyze the different aspects of the bill, particularly concerning four main dimensions, namely, the patient's condition at the time of requesting euthanasia; the doctor-patient relationship and respect for the autonomy of both parties; the idea of medicine involved in it; and the possible therapeutic alternatives to euthanasia. This critical analysis raises the need to discuss in more depth a project that has to do with such important decisions about our lives and that implies a radical change in the way of thinking and practicing medicine.
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Eutanasia , Cuidados Paliativos , Chile , Humanos , Relaciones Médico-PacienteRESUMEN
Reaching ambitious voluntary medical male circumcision (VMMC) coverage targets requires a deeper understanding of the multifaceted processes shaping men's willingness to access VMMC. Guided by the Ideation Model for Health Communication, this population-based study identifies correlates of Zambian men's future VMMC intentions. Multistage cluster sampling was used to identify households with adult men in 14 districts. Multivariable Poisson regression with robust standard errors modelled associations of future VMMC intent with ideational factors (e.g. perceived benefits and barriers) and sexual behaviours respectively. Forty per cent (40%) of uncircumcised men (N = 1 204) expressed future VMMC intentions. In multivariable analysis, VMMC intent was associated with secondary education or higher (Adjusted Prevalence Ratio [APR] 1.30, 95% Confidence Interval [95% CI]: 1.02-1.66), perceiving VMMC to increase sexual satisfaction (APR 1.45, 95% CI: 1.11-1.89), reporting distance to services as a barrier to VMMC uptake (APR = 0.54, 95% CI: 1.27-1.87), unprotected last sex (APR 1.54, 95% CI: 1.11-2.14), and ≥ 2 sexual partners in the past 12 months (APR 1.45, 95% CI: 1.05-1.99). Being aged ≥ 45 years (vs 18-24 years: APR 0.23, 95% CI: 0.13-0.40) and perceiving that circumcision: (1) is unimportant (APR 0.71, 95% CI: 0.51-0.98); (2) is incompatible with local customs (APR 0.41, 95% CI: 0.18-0.94); or (3) reduces sexual satisfaction (APR 0.10, 95% CI: 0.02-0.62) were inversely associated with future VMMC intent. Demand-creation efforts must confront salient cognitive and social barriers to VMMC uptake, including concerns around incompatibility with local customs. Simultaneously, promotional efforts should emphasise relevant VMMC benefits beyond HIV prevention that resonate with men (e.g. penile hygiene) without reinforcing harmful gender norms.
Asunto(s)
Circuncisión Masculina , Infecciones por VIH , Adulto , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Humanos , Masculino , Conducta Sexual , Parejas Sexuales , Sexo InseguroRESUMEN
AIM: To evaluate the attitudes towards deceased multi-organ donation and transplantation among nurses within the critical care units of the six public tertiary transplant hospitals in Madrid, Spain. BACKGROUND: Spain has a rate of 49 donations per million population, whereas Madrid has a lower donation rate of 34.2 per million population. Nurses generate social opinion, and their attitude can be one of the barriers against organ donation. METHOD: An observational descriptive study was conducted among critical care units' nurses. The measuring instrument was the Collaborative International Donor Project in Organ Donation and Transplantation. Data were collected from January to October 2019, and a statistical analysis was performed. RESULTS: A total of n = 313 questionnaires achieved a response rate of 51%. Of the intensive care unit nurses surveyed, 85% had a favourable opinion towards the donation of their organs being affected by psychosocial variables related to social variables with respect to family, religion and attitude towards the body. CONCLUSION: The intensive care unit nurses of the Madrid transplant hospitals maintain a favourable attitude towards organ donation and transplantation. It is necessary to implement specialized training and periodically evaluate training in this sector. To maintain and improve the attitude towards organ donation, family discussion among health personnel should be encouraged. Religion influences the attitude of nurses and donation rates. IMPLICATION FOR NURSING AND HEALTH POLICY: Intensive care nurses' attitude towards organ donation is influenced by social variables. This study shows that the attitude is positive but improvable. These findings contribute to promote awareness of the lack of organs and the benefits of organ donation.
Asunto(s)
Enfermeras y Enfermeros , Obtención de Tejidos y Órganos , Actitud , Actitud del Personal de Salud , Hospitales , Humanos , Unidades de Cuidados Intensivos , Encuestas y CuestionariosRESUMEN
Voluntary medical male circumcision (VMMC) is an HIV prevention priority in Lesotho, but uptake remains suboptimal. We analyzed the 2014 Lesotho Demographic and Health Survey to assess population-level social, behavioral, and serological correlates of circumcision status, specifically traditional and/or medical circumcision. Among 2931 men, approximately half were traditionally circumcised, and fewer than 25% were medically circumcised. Only 4% were dually (traditionally and medically) circumcised. In multivariate analysis, only medical circumcision emerged as significantly (p < 0.05) protective against HIV infection, whereas dual circumcision was significantly associated with past-year STI symptomology. Younger (ages 15-24), lower educated, rural-dwelling, and traditionally circumcised men, including those who never tested for HIV, had significantly lower odds of medical circumcision. Our findings indicate other unmeasured behavioral factors may mitigate VMMC's protective effect against HIV and STI infections in dually circumcised men. Further research can help identify counseling and demand creation strategies for traditionally circumcised men presenting for VMMC.