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1.
BMJ Open ; 14(8): e083497, 2024 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-39107017

RESUMEN

OBJECTIVE: There are established inequities in the monitoring and management of hypertension in England. The COVID-19 pandemic had a major impact on primary care management of long-term conditions such as hypertension. This study investigated the possible disproportionate impact of the pandemic across patient groups. DESIGN: Open cohort of people with diagnosed hypertension. SETTINGS: North East London primary care practices from January 2019 to October 2022. PARTICIPANTS: All 224 329 adults with hypertension registered in 193 primary care practices. OUTCOMES: Monitoring and management of hypertension were assessed using two indicators: (i) blood pressure recorded within 1 year of the index date and (ii) blood pressure control to national clinical practice guidelines. RESULTS: The proportion of patients with a contemporaneous blood pressure recording fell from a 91% pre-pandemic peak to 62% at the end of the pandemic lockdown and improved to 77% by the end of the study. This was paralleled by the proportion of individuals with controlled hypertension which fell from a 73% pre-pandemic peak to 50% at the end of the pandemic lockdown and improved to 60% by the end of the study. However, when excluding patients without a recent blood pressure recording, the proportions of patients with controlled hypertension increased to 81%, 80% and 78% respectively.Throughout the study, in comparison to the White ethnic group, the Black ethnic group was less likely to achieve adequate blood pressure control (ORs 0.81 (95% CI 0.78 to 0.85, p<0.001) to 0.87 (95% CI 0.84 to 0.91, p<0.001)). Conversely, the Asian ethnic group was more likely to have controlled blood pressure (ORs 1.09 (95% CI 1.05 to 1.14, p<0.001) to 1.28 (95% CI 1.23 to 1.32, p<0.001)). Men, younger individuals, more affluent individuals, individuals with unknown or unrecorded ethnicity or those untreated were also less likely to have blood pressure control to target throughout the study. CONCLUSION: The COVID-19 pandemic had a greater impact on blood pressure recording than on blood pressure control. Inequities in blood pressure control persisted during the pandemic and remain outstanding.


Asunto(s)
COVID-19 , Registros Electrónicos de Salud , Hipertensión , SARS-CoV-2 , Humanos , COVID-19/epidemiología , Hipertensión/epidemiología , Hipertensión/terapia , Masculino , Londres/epidemiología , Femenino , Persona de Mediana Edad , Anciano , Adulto , Atención Primaria de Salud , Estudios de Cohortes , Determinación de la Presión Sanguínea/métodos , Presión Sanguínea , Pandemias , Antihipertensivos/uso terapéutico
2.
Artículo en Inglés | MEDLINE | ID: mdl-39150439

RESUMEN

PURPOSE OF REVIEW: This review aims to explore the latest research investigating the effects of marine-derived long-chain n-3 polyunsaturated fatty acid (LCn-3 PUFA) supplementation on neuromuscular function in older adults. RECENT FINDINGS: Ageing results in a decline in skeletal muscle strength and mass. There is growing evidence that LCn-3 PUFA supplementation increases muscle strength and mass in healthy older adults, yet the mechanisms underlying these effects remain elusive. Recent studies investigating LCn-3 PUFA supplementation have demonstrated effects on neuromuscular function such as increases in the compound muscle action potential (M-wave) amplitude and surface electromyography alongside increases in muscular strength. Therefore, evidence suggests that LCn-3 PUFA may elicit a beneficial effect at the neuromuscular junction and possess neuroprotective properties in older adults. SUMMARY: LCn-3 PUFA supplementation may increase or maintain neuromuscular function throughout the ageing process. Further research is warranted to investigate the long-term effects LCn-3 PUFA supplementation on neuromuscular outcomes such as single motor unit properties and cortical/supraspinal networks, utilizing state-of-the-art techniques in neuromuscular physiology.

3.
Int J Sport Nutr Exerc Metab ; 34(5): 322-324, 2024 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-38991545

RESUMEN

A comprehensive recent study by Trommelen et al. demonstrated that muscle tissue exhibits a greater capacity to incorporate exogenous exogenous protein-derived amino acids into bound muscle protein than was previously appreciated, at least when measured in "anabolically sensitive," recreationally active (but not resistance-trained), young men following resistance exercise. Moreover, this study demonstrated that the duration of the postprandial period is modulated by the dose of ingested protein contained within a meal, that is, the postexercise muscle protein synthesis response to protein ingestion was more prolonged in 100PRO than 25PRO. Both observations represent important scientific advances in the field of protein metabolism. However, we respectfully caution that the practical implications of these findings may have been misinterpreted, at least in terms of dismissing the concept of protein meal distribution as an important factor in optimizing muscle tissue anabolism and/or metabolic health. Moreover, based on emerging evidence, this idea that the anabolic response to protein ingestion has no upper limit does not appear to translate to resistance-trained young women.


Asunto(s)
Proteínas en la Dieta , Ejercicio Físico , Proteínas Musculares , Músculo Esquelético , Periodo Posprandial , Entrenamiento de Fuerza , Humanos , Proteínas en la Dieta/administración & dosificación , Músculo Esquelético/metabolismo , Proteínas Musculares/metabolismo , Ejercicio Físico/fisiología , Masculino , Femenino , Aminoácidos/administración & dosificación , Aminoácidos/metabolismo , Fenómenos Fisiológicos en la Nutrición Deportiva , Recuperación Después del Ejercicio
4.
Health Expect ; 27(3): e14108, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38898594

RESUMEN

INTRODUCTION: Many people experience persistent symptoms for more than 12 weeks following SARS-CoV-2 infection, which is known as post-COVID-19 condition (PCS) or Long COVID (LC). PCS can impair people's quality of life and daily functioning. However, there is a lack of in-depth research exploring the PCS patient journey, as well as gendered aspects of patients' experiences. METHODS: Nineteen semi-structured qualitative interviews were conducted with people living with PCS in the United Kingdom (13 women, 6 men). Interviews were transcribed verbatim and analysed inductively using reflexive thematic analysis. RESULTS: Five main themes were identified: 'Symptom dismissal', 'Lack of information and support', 'Life before and after Long COVID', 'Psychological impact' and 'Acceptance'. A shift overtime to self-management of symptoms was evident. These themes represent different stages of patients' PCS journey. Narratives indicated that women highlighted dismissal by healthcare professionals (HCPs), which was not as prominent in men's narratives. In addition, women went into more detail about the psychological impact of PCS compared to men. CONCLUSION: Women with PCS reported symptom dismissal by HCPs, which may have delayed their diagnosis and negatively affected their well-being. We were not able to explore the experiences of people from non-conforming gender groups. Raising awareness of these issues among HCPs, particularly general practitioners, could improve patient care in PCS. PATIENT OR PUBLIC CONTRIBUTION: Patient and public involvement consisted of people who took part in the interviews and commented on the themes' interpretation and study conclusions.


Asunto(s)
COVID-19 , Investigación Cualitativa , Calidad de Vida , Humanos , Femenino , Masculino , COVID-19/psicología , Persona de Mediana Edad , Adulto , Reino Unido , Anciano , Síndrome Post Agudo de COVID-19 , Entrevistas como Asunto , SARS-CoV-2 , Factores Sexuales
5.
Front Psychol ; 15: 1369715, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38863668

RESUMEN

Introduction: A growing body of literature is investigating the difficulties that some individuals encounter after psychedelic experiences. Existing research has explored the nature and predictors of these difficulties; however, a research gap exists in understanding how individuals endeavour to cope with such difficulties. Methods: The current study collected data from an international cohort of 608 participants who reported experiencing difficulties that persisted for at least one day after a psychedelic experience. They provided written data on how they used coping strategies to alleviate these difficulties. The qualitative analysis of the written data on coping was conducted using Structured Tabular Thematic Analysis. Results: A wide range of individual and social coping strategies were employed that were found helpful. The most common individual strategies were meditation and prayer, followed by self-educational activities such as reading and journaling. The most prevalent forms of social coping involved seeking support from friends or family members, followed by obtaining assistance from a therapist or coach. Features of social coping that were reported to be helpful included feeling heard/accepted, a non-judgemental attitude and sharing similar experiences. Discussion: Our findings hold potential for informing the design of therapeutic interventions and educational resources aimed at enhancing positive outcomes for those experiencing extended difficulties after psychedelic use.

6.
PLoS One ; 19(6): e0289905, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38837972

RESUMEN

Despite significant progress in Ghana's HIV response, disparities in HIV prevalence persist among different populations. Gays, bisexuals, and other men who have sex with men (GBMSM) in the country remain vulnerable to HIV infection due to high levels of stigma and discrimination, limited access to healthcare services, and low HIV knowledge levels. While limited studies focus on HIV prevention and care in the Ghanaian GBMSM context, we did not find studies on GBMSM in slums. We, therefore, explored stigma and motivations of HIV testing among GBMSM in slums. In collaboration with our community partners, we recruited and conducted face-to-face interviews among 12 GBMSM from slums in Accra and Kumasi, Ghana. Our multiple-reviewer summative content analysis identified the following: under HIV stigma, we identified two categories, avoidance of GBMSM living with HIV and fear of testing positive for HIV. Under motivations for HIV testing, we identified three categories; HIV vulnerability, knowing one's HIV status, and positive messaging about HIV. Our findings provide valuable insights into stigma and motivations for HIV testing among GBMSM in Ghanaian slums. They also highlight the importance of targeted HIV education interventions to empower GBMSM to take responsibility for their sexual health and address the unique challenges they face accessing HIV testing services.


Asunto(s)
Infecciones por VIH , Prueba de VIH , Homosexualidad Masculina , Motivación , Áreas de Pobreza , Estigma Social , Humanos , Masculino , Ghana/epidemiología , Infecciones por VIH/psicología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Adulto , Homosexualidad Masculina/psicología , Minorías Sexuales y de Género/psicología , Adulto Joven , Persona de Mediana Edad , Bisexualidad/psicología
7.
PLoS One ; 19(5): e0302509, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38718082

RESUMEN

BACKGROUND: Soil-transmitted helminthiasis (STH) and schistosomiasis (SCH) are among the most prevalent neglected tropical diseases (NTDs), affecting 1.5 billion globally, with a significant burden in sub-Saharan Africa, particularly Nigeria. These diseases impair health and contribute to socio-economic challenges, especially in children, undermining educational and future economic prospects. The 2030 NTD Roadmap highlights Mass Drug Administration (MDA) as a critical strategy for controlling these NTDs, targeting vulnerable populations like school-age children. Despite some successes, challenges persist, indicating the need for deeper insights into program implementation. This study focuses on the perspectives of health workers implementing MDA in selected local government areas (LGAs) of Ogun State, Nigeria, aiming to identify challenges and enablers that align with the broader NTD 2030 goals. METHODOLOGY/PRINCIPAL FINDINGS: The study used a qualitative research approach involving focus group discussions and in-depth interviews with health workers engaged in neglected tropical disease control programs in Ogun State, Nigeria, between July and September 2022. A semi-structured questionnaire guided the exploration of ideas, and the data were analyzed using the QRS Nvivo 12 software package. The study found that the school-based MDA control program's efficacy largely relies on strong collaborations and partnerships, particularly with educators, community heads, and other stakeholders. These alliances and strategic communication methods, like town announcements and media campaigns, have been pivotal in reaching communities. However, the program does grapple with hurdles such as parental misconceptions, limited funds, insufficient staffing, and misalignment with the Ministry of Education. It is recommended to boost funding, foster early stakeholder involvement, enhance mobilization techniques, and consider introducing a monitoring card system similar to immunization. CONCLUSIONS/SIGNIFICANCE: The MDA Integrated Control Programs for STH and SCH in Ogun State schools demonstrate a holistic approach, integrating knowledge, collaboration, communication, and feedback. Health workers have shown commitment and adeptness in their roles. However, achieving maximum efficacy requires addressing critical barriers, such as parental misconceptions and funding challenges. Adopting the recommended strategies, including proactive communication, increased remuneration, and introducing a tracking system, can significantly enhance the program's reach and impact. The involvement of all stakeholders, from health workers to community leaders and parents, is essential for the program's sustainability and success.


Asunto(s)
Personal de Salud , Helmintiasis , Administración Masiva de Medicamentos , Esquistosomiasis , Suelo , Humanos , Nigeria/epidemiología , Esquistosomiasis/prevención & control , Esquistosomiasis/epidemiología , Esquistosomiasis/tratamiento farmacológico , Helmintiasis/prevención & control , Helmintiasis/epidemiología , Helmintiasis/tratamiento farmacológico , Suelo/parasitología , Masculino , Femenino , Instituciones Académicas , Adulto , Enfermedades Desatendidas/prevención & control , Enfermedades Desatendidas/epidemiología , Niño , Antihelmínticos/uso terapéutico , Antihelmínticos/administración & dosificación , Grupos Focales
8.
Anaesth Rep ; 12(1): e12293, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38720816

RESUMEN

We conducted a prospective observational service evaluation across the United Kingdom on the use of total intravenous anaesthesia (TIVA) for obstetric surgery between November 2022 and June 2023. The primary aim was to describe the incidence of TIVA for obstetric surgery within participating units, with secondary aims to describe maternal and neonatal postoperative recovery indicators. Of 184 maternity units in the United Kingdom, 30 (16%) contributed data to the service evaluation. There were 104 patients who underwent caesarean delivery under TIVA and 19 patients had TIVA for other reasons. Infusions of propofol and remifentanil were used in 100% and 84% of cases, respectively. Fifty-nine out of 103 live neonates (57%) required some form of respiratory support. Of the neonates with recorded data, 73% and 17% had Apgar scores < 7 at 1 and 5 min respectively. No neonates were recorded to have Apgar scores < 7 at 10 min. Further prospective research is required to investigate the impact of obstetric TIVA on maternal and neonatal outcomes and inform best practice recommendations.

9.
Nutr Rev ; 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38777807

RESUMEN

CONTEXT: Sarcopenia describes the age-related decline in skeletal muscle mass and strength that is driven, at least in part, by an imbalance between rates of muscle protein synthesis (MPS) and muscle protein breakdown. An expanding body of literature has examined the effect of omega-3 polyunsaturated fatty acid (n-3 PUFA) ingestion on MPS rates in older adults, with mixed findings. OBJECTIVE: The aim of this systematic review and meta-analysis was to investigate the effectiveness of n-3 PUFA ingestion in stimulating rates of MPS and whole-body protein synthesis in healthy adults and clinical populations. DATA SOURCES: Searches were conducted of the PubMed, Web of Science, Cochrane Library, and Scopus databases from inception until December 2022 for articles on randomized controlled trials comparing the effect of n-3 PUFA ingestion vs a control or placebo on rates of MPS and whole-body protein synthesis. The search yielded 302 studies, of which 8 were eligible for inclusion. DATA EXTRACTION: The random effects inverse-variance model was used and standardized mean differences (SMDs) with 95%CIs were calculated to assess the pooled effect. Risk of bias was assessed by the Cochrane Risk-of-Bias 2 tool. DATA ANALYSIS: The main analysis indicated no effect of n-3 PUFA supplementation on MPS rates (k = 6; SMD: 0.03; 95%CI, -0.35 to 0.40; I2 = 30%; P = .89). Subgroup analysis based on age, n-3 PUFA dose, duration of supplementation, and method used to measure fractional synthetic rate also revealed no effect of n-3 PUFA ingestion on MPS. In contrast, the main analysis demonstrated an effect of n-3 PUFA ingestion on increasing whole-body protein synthesis rates (k = 3; SMD: 0.51; 95%CI, 0.12-0.90; I2 = 0%; P = .01). CONCLUSIONS: n-3 PUFA ingestion augments the stimulation of whole-body protein synthesis rates in healthy adults and clinical populations. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. 42022366986.

10.
BMJ Med ; 3(1): e000748, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38756669

RESUMEN

Objective: To derive a new maternity early warning score (MEWS) from prospectively collected data on maternity vital signs and to design clinical response pathways with a Delphi consensus exercise. Design: Centile based score development and Delphi informed escalation pathways. Setting: Pregnancy Physiology Pattern Prediction (4P) prospective UK cohort study, 1 August 2012 to 28 December 2016. Participants: Pregnant people from the 4P study, recruited before 20 weeks' gestation at three UK maternity centres (Oxford, Newcastle, and London). 841, 998, and 889 women provided data in the early antenatal, antenatal, and postnatal periods. Main outcome measures: Development of a new national MEWS, assigning numerical weights to measurements in the lower and upper extremes of distributions of individual vital signs from the 4P prospective cohort study. Comparison of escalation rates of the new national MEWS with the Scottish and Irish MEWS systems from 18 to 40 weeks' gestation. Delphi consensus exercise to agree clinical responses to raised scores. Results: A new national MEWS was developed by assigning numerical weights to measurements in the lower and upper extremes (5%, 1%) of distributions of vital signs, except for oxygen saturation where lower centiles (10%, 2%) were used. For the new national MEWS, in a healthy population, 56% of observation sets resulted in a total score of 0 points, 26% a score of 1 point, 12% a score of 2 points, and 18% a score of ≥2 points (escalation of care is triggered at a total score of ≥2 points). Corresponding values for the Irish MEWS were 37%, 25%, 22%, and 38%, respectively; and for the Scottish MEWS, 50%, 18%, 21%, and 32%, respectively. All three MEWS were similar at the beginning of pregnancy, averaging 0.7-0.9 points. The new national MEWS had a lower mean score for the rest of pregnancy, with the mean score broadly constant (0.6-0.8 points). The new national MEWS had an even distribution of healthy population alerts across the antenatal period. In the postnatal period, heart rate threshold values were adjusted to align with postnatal changes. The centile based score derivation approach meant that each vital sign component in the new national MEWS had a similar alert rate. Suggested clinical responses to different MEWS values were agreed by consensus of an independent expert panel. Conclusions: The centile based MEWS alerted escalation of care evenly across the antenatal period in a healthy population, while reducing alerts in healthy women compared with other MEWS systems. How well the tool predicted adverse outcomes, however, was not assessed and therefore external validation studies in large datasets are needed. Unlike other MEWS systems, the new national MEWS was developed with prospectively collected data on vital signs and used a systematic, expert informed process to design an associated escalation protocol.

11.
EJNMMI Radiopharm Chem ; 9(1): 42, 2024 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-38753262

RESUMEN

BACKGROUND: The Editorial Board of EJNMMI Radiopharmacy and Chemistry releases a biannual highlight commentary to update the readership on trends in the field of radiopharmaceutical development. MAIN BODY: This selection of highlights provides commentary on 24 different topics selected by each coauthoring Editorial Board member addressing a variety of aspects ranging from novel radiochemistry to first-in-human application of novel radiopharmaceuticals. CONCLUSION: Trends in radiochemistry and radiopharmacy are highlighted. Hot topics cover the entire scope of EJNMMI Radiopharmacy and Chemistry, demonstrating the progress in the research field in many aspects.

12.
Commun Biol ; 7(1): 417, 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38580813

RESUMEN

The concept of agonist-independent signalling that can be attenuated by inverse agonists is a fundamental element of the cubic ternary complex model of G protein-coupled receptor (GPCR) activation. This model shows how a GPCR can exist in two conformational states in the absence of ligands; an inactive R state and an active R* state that differ in their affinities for agonists, inverse agonists, and G-protein alpha subunits. The proportion of R* receptors that exist in the absence of agonists determines the level of constitutive receptor activity. In this study we demonstrate that mechanical stimulation can induce ß2-adrenoceptor agonist-independent Gs-mediated cAMP signalling that is sensitive to inhibition by inverse agonists such as ICI-118551 and propranolol. The size of the mechano-sensitive response is dependent on the cell surface receptor expression level in HEK293G cells, is still observed in a ligand-binding deficient D113A mutant ß2-adrenoceptor and can be attenuated by site-directed mutagenesis of the extracellular N-glycosylation sites on the N-terminus and second extracellular loop of the ß2-adrenoceptor. Similar mechano-sensitive agonist-independent responses are observed in HEK293G cells overexpressing the A2A-adenosine receptor. These data provide new insights into how agonist-independent constitutive receptor activity can be enhanced by mechanical stimulation and regulated by inverse agonists.


Asunto(s)
Agonistas Adrenérgicos beta , Agonismo Inverso de Drogas , Agonistas Adrenérgicos beta/metabolismo , Agonistas Adrenérgicos beta/farmacología , Transducción de Señal , Ligandos , Receptores Adrenérgicos
13.
J Proteome Res ; 23(8): 3052-3063, 2024 Aug 02.
Artículo en Inglés | MEDLINE | ID: mdl-38533909

RESUMEN

Quantitation of proteins using liquid chromatography-tandem mass spectrometry (LC-MS/MS) is complex, with a multiplicity of options ranging from label-free techniques to chemically and metabolically labeling proteins. Increasingly, for clinically relevant analyses, stable isotope-labeled (SIL) internal standards (ISs) represent the "gold standard" for quantitation due to their similar physiochemical properties to the analyte, wide availability, and ability to multiplex to several peptides. However, the purchase of SIL-ISs is a resource-intensive step in terms of cost and time, particularly for screening putative biomarker panels of hundreds of proteins. We demonstrate an alternative strategy utilizing nonhuman sera as the IS for quantitation of multiple human proteins. We demonstrate the effectiveness of this strategy using two high abundance clinically relevant analytes, vitamin D binding protein [Gc globulin] (DBP) and albumin (ALB). We extend this to three putative risk markers for cardiovascular disease: plasma protease C1 inhibitor (SERPING1), annexin A1 (ANXA1), and protein kinase, DNA-activated catalytic subunit (PRKDC). The results show highly specific, reproducible, and linear measurement of the proteins of interest with comparable precision and accuracy to the gold standard SIL-IS technique. This approach may not be applicable to every protein, but for many proteins it can offer a cost-effective solution to LC-MS/MS protein quantitation.


Asunto(s)
Cromatografía Líquida con Espectrometría de Masas , Espectrometría de Masas en Tándem , Animales , Humanos , Biomarcadores/sangre , Análisis Costo-Beneficio , Marcaje Isotópico/métodos , Cromatografía Líquida con Espectrometría de Masas/métodos , Péptidos/química , Péptidos/sangre , Péptidos/análisis , Proteómica/métodos , Proteómica/economía , Estándares de Referencia , Reproducibilidad de los Resultados , Albúmina Sérica/análisis , Albúmina Sérica/química , Espectrometría de Masas en Tándem/métodos , Tripsina/química , Tripsina/metabolismo , Proteína de Unión a Vitamina D/sangre , Proteína de Unión a Vitamina D/química
14.
Exp Physiol ; 109(6): 873-888, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38424716

RESUMEN

Bed rest and limb immobilization are models of muscle disuse associated with skeletal muscle atrophy and reduced strength. The purpose of this systematic review was to examine the impact of protein or amino acid provision before and/or during a period of muscle disuse on muscle atrophy (primary outcome), strength and muscle protein synthesis (secondary outcomes) following a disuse period. We performed a systematic review of Embase, MEDLINE, Web of Science, PubMed and Clinical Trials in December 2022. Eligible studies were randomized controlled trials that combined a dietary protein or amino acid intervention versus control during an experimental model of disuse (bed rest or unilateral limb immobilization) in healthy individuals aged ≥18 years. Nine articles from eight independent trials were identified and rated for risk of bias by two authors. A meta-analysis of muscle mass data revealed no effect (standardized mean difference: 0.2; 95% confidence interval: -0.18 to 0.57, P = 0.31) of protein/amino acid intervention in preventing disuse-induced muscle atrophy. Although the meta-analysis was not conducted on strength or muscle protein synthesis data, there was insufficient evidence in the reviewed articles to support the use of protein/amino acid provision in mitigating the disuse-induced decline in either outcome measurement. Additional high-quality studies, including the reporting of randomization procedures and blinding procedures and the provision of statistical analysis plans, might be required to determine whether protein or amino acid provision serves as an effective strategy to attenuate muscle atrophy during periods of disuse.


Asunto(s)
Aminoácidos , Proteínas en la Dieta , Inmovilización , Músculo Esquelético , Atrofia Muscular , Adulto , Humanos , Aminoácidos/metabolismo , Reposo en Cama/efectos adversos , Proteínas en la Dieta/administración & dosificación , Inmovilización/efectos adversos , Proteínas Musculares/metabolismo , Proteínas Musculares/biosíntesis , Fuerza Muscular/fisiología , Músculo Esquelético/metabolismo , Músculo Esquelético/fisiopatología , Atrofia Muscular/metabolismo
15.
Eur J Nutr ; 63(5): 1425-1433, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38430450

RESUMEN

Human dietary patterns are a major cause of environmental transformation, with agriculture occupying ~ 50% of global land space, while food production itself is responsible for ~ 30% of all greenhouse gas emissions and 70% of freshwater use. Furthermore, the global population is also growing, such that by 2050, it is estimated to exceed ~ 9 billion. While most of this expansion in population is expected to occur in developing countries, in high-income countries there are also predicted changes in demographics, with major increases in the number of older people. There is a growing consensus that older people have a greater requirement for protein. With a larger and older population, global needs for protein are set to increase. This paper summarises the conclusions from a Rank Prize funded colloquium evaluating novel strategies to meet this increasing global protein need.


Asunto(s)
Proteínas en la Dieta , Humanos , Proteínas en la Dieta/administración & dosificación , Envejecimiento/fisiología , Necesidades Nutricionales , Anciano , Crecimiento Demográfico , Abastecimiento de Alimentos/estadística & datos numéricos , Abastecimiento de Alimentos/métodos , Salud Global , Dieta/métodos , Dieta/estadística & datos numéricos , Países en Desarrollo
16.
J Arthroplasty ; 39(9): 2289-2294, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38490569

RESUMEN

BACKGROUND: A consumer-focused health care model not only allows unprecedented access to information, but equally warrants consideration of the appropriateness of providing accurate patient health information. Nurses play a large role in influencing patient satisfaction following total knee arthroplasty (TKA), but they come at a cost. A specific natural language artificial intelligence (AI) model, ChatGPT (Chat Generative Pre-trained Transformer), has accumulated over 100 million users within months of launching. As such, we aimed to compare: (1) orthopaedic surgeons' evaluation of the appropriateness of the answers to the most frequently asked patient questions after TKA; and (2) patients' comfort level in answering their postoperative questions by using answers provided by arthroplasty-trained nurses and ChatGPT. METHODS: We prospectively created 60 questions based on the most commonly asked patient questions following TKA. There were 3 fellowship-trained surgeons who assessed the answers provided by arthroplasty-trained nurses and ChatGPT-4 to each of the questions. The surgeons graded each set of responses based on clinical judgment as: (1) "appropriate," (2) "inappropriate" if the response contained inappropriate information, or (3) "unreliable," if the responses provided inconsistent content. Patients' comfort level and trust in AI were assessed using Research Electronic Data Capture (REDCap) hosted at our local hospital. RESULTS: The surgeons graded 44 out of 60 (73.3%) responses for the arthroplasty-trained nurses and 44 out of 60 (73.3%) for ChatGPT to be "appropriate." There were 4 responses graded "inappropriate" and one response graded "unreliable" provided by the nurses. For the ChatGPT response, there were 5 responses graded "inappropriate" and no responses graded "unreliable." There were 136 patients (53.8%) who were more comfortable with the answers provided by ChatGPT compared to 86 patients (34.0%) who preferred the answers from arthroplasty-trained nurses. Of the 253 patients, 233 (92.1%) were uncertain if they would trust AI to answer their postoperative questions. There were 127 patients (50.2%) who answered that if they knew the previous answer was provided by ChatGPT, their comfort level in trusting the answer would change. CONCLUSIONS: One potential use of ChatGPT can be found in providing appropriate answers to patient questions after TKA. At our institution, cost expenditures can potentially be minimized while maintaining patient satisfaction. Inevitably, successful implementation is dependent on the ability to provide information that is credible and in accordance with the objectives of both physicians and patients. LEVEL OF EVIDENCE: III.


Asunto(s)
Artroplastia de Reemplazo de Rodilla , Satisfacción del Paciente , Humanos , Estudios Prospectivos , Masculino , Femenino , Inteligencia Artificial , Cirujanos Ortopédicos , Encuestas y Cuestionarios , Anciano , Persona de Mediana Edad
17.
Transplantation ; 2024 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-38467594

RESUMEN

Transplantation serves as the cornerstone of treatment for patients with end-stage organ disease. The prevalence of complications, such as allograft rejection, infection, and malignancies, underscores the need to dissect the complex interactions of the immune system at the single-cell level. In this review, we discuss studies using mass cytometry or cytometry by time-of-flight, a cutting-edge technology enabling the characterization of immune populations and cell-to-cell interactions in granular detail. We review the application of mass cytometry in human and experimental animal studies in the context of transplantation, uncovering invaluable contributions of the tool to understanding rejection and other transplant-related complications. We discuss recent innovations that have the potential to streamline and standardize mass cytometry workflows for application to multisite clinical trials. Additionally, we introduce imaging mass cytometry, a technique that couples the power of mass cytometry with spatial context, thereby mapping cellular interactions within tissue microenvironments. The synergistic integration of mass cytometry and imaging mass cytometry data with other omics data sets and high-dimensional data platforms to further define immune dynamics is discussed. In conclusion, mass cytometry technologies, when integrated with other tools and data, shed light on the intricate landscape of the immune response in transplantation. This approach holds significant potential for enhancing patient outcomes by advancing our understanding and facilitating the development of new diagnostics and therapeutics.

18.
Nurse Educ Today ; 137: 106152, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38513303

RESUMEN

BACKGROUND: Mentorship has been recognized as a strategy to develop leadership competencies in clinical leaders and has been integrated into leadership programs. However, there are few published frameworks to guide mentor conversations with mentees training to assume nursing leadership roles. OBJECTIVE: This study explores mentors' perceptions of 6-month mentorship, a component of the Strengths-Based Nursing Leadership program, the effectiveness of the Facilitated Engagement Approach, a pedagogical strategy developed to facilitate conversation between the mentor and mentee, and the impact of mentorship on leadership practice of mentees. METHODS: A mixed method qualitative and quantitative approach was used with semi-structured interviews and bi-weekly survey among mentors. Data were thematically analyzed. RESULTS: Mentors described the use of the Facilitated Engagement Approach to guide their mentorship conversations and found it to be effective in mentoring program participants. Mentors described techniques used and the process of deepening a reflective mentorship conversation. The Spiraling Process (58 %) and the Story Sharing Process (74 %) were integral aspects of the Facilitated Engagement Approach used. Mentorship was found to be impactful in that mentors reported a change in their mentee. CONCLUSIONS: The Facilitated Engagement Approach was an effective tool for mentees and mentors to develop leadership capacities.


Asunto(s)
Tutoría , Mentores , Humanos , Evaluación de Programas y Proyectos de Salud , Rol de la Enfermera , Encuestas y Cuestionarios
19.
Clin Psychol Rev ; 109: 102415, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38493675

RESUMEN

What are the major vulnerabilities in people with social anxiety? What are the most promising directions for translational research pertaining to this condition? The present paper provides an integrative summary of basic and applied translational research on social anxiety, emphasizing vulnerability factors. It is divided into two subsections: intrapersonal and interpersonal. The intrapersonal section synthesizes research relating to (a) self-representations and self-referential processes; (b) emotions and their regulation; and (c) cognitive biases: attention, interpretation and judgment, and memory. The interpersonal section summarizes findings regarding the systems of (a) approach and avoidance, (b) affiliation and social rank, and their implications for interpersonal impairments. Our review suggests that the science of social anxiety and, more generally, psychopathology may be advanced by examining processes and their underlying content within broad psychological systems. Increased interaction between basic and applied researchers to diversify and elaborate different perspectives on social anxiety is necessary for progress.


Asunto(s)
Emociones , Miedo , Humanos , Juicio , Atención , Ansiedad/psicología , Relaciones Interpersonales
20.
Anaesthesia ; 79(4): 389-398, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38369686

RESUMEN

Complications are common following major surgery and are associated with increased use of healthcare resources, disability and mortality. Continued reliance on mortality estimates risks harming patients and health systems, but existing tools for predicting complications are unwieldy and inaccurate. We aimed to systematically construct an accurate pre-operative model for predicting major postoperative complications; compare its performance against existing tools; and identify sources of inaccuracy in predictive models more generally. Complete patient records from the UK Peri-operative Quality Improvement Programme dataset were analysed. Major complications were defined as Clavien-Dindo grade ≥ 2 for novel models. In a 75% train:25% test split cohort, we developed a pipeline of increasingly complex models, prioritising pre-operative predictors using Least Absolute Shrinkage and Selection Operators (LASSO). We defined the best model in the training cohort by the lowest Akaike's information criterion, balancing accuracy and simplicity. Of the 24,983 included cases, 6389 (25.6%) patients developed major complications. Potentially modifiable risk factors (pain, reduced mobility and smoking) were retained. The best-performing model was highly complex, specifying individual hospital complication rates and 11 patient covariates. This novel model showed substantially superior performance over generic and specific prediction models and scores. We have developed a novel complications model with good internal accuracy, re-prioritised predictor variables and identified hospital-level variation as an important, but overlooked, source of inaccuracy in existing tools. The complexity of the best-performing model does, however, highlight the need for a step-change in clinical risk prediction to automate the delivery of informative risk estimates in clinical systems.


Asunto(s)
Complicaciones Posoperatorias , Mejoramiento de la Calidad , Humanos , Complicaciones Posoperatorias/etiología , Factores de Riesgo , Fumar , Dolor
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