Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 83
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
BMC Public Health ; 24(1): 103, 2024 01 05.
Artículo en Inglés | MEDLINE | ID: mdl-38183033

RESUMEN

BACKGROUND: Governments of Western countries need people to work to older ages, however the COVID-19 pandemic impacted the workforce by pushing older adults to retire. Socio-demographic factors that influence the decision to retire in the pre-pandemic period were, poor or good health, finances, marital status, and gender. The aim of this study was to explore aspects that contributed to the decision to retire among middle-aged and older people in England who retired during the COVID-19 pandemic. METHODS: In September 2022 semi-structured interviews were conducted with a sample of participants from the Health and Employment After Fifty (HEAF) study who retired since March 2020. Consenting participants were purposively selected to achieve a wide spread of characteristics deemed important in the retirement process. Telephone interviews were conducted, audio-recorded, transcribed and then thematically analysed. RESULTS: 24 interviews were conducted (10 men and 14 women, mean age 65 years). Six themes were identified: four of them were non-COVID-19 aspects while two can be interpreted as impact of COVID-19 on the workforce. Work-related factors were of major importance. A sense of appreciation and attachment in relation to their employer, and conversely high work demands and stress, as well as changes in work responsibilities and work practices since lockdown and/or perception of personal safety in the workplace during the pandemic influenced their retirement decision, as did physical and mental health issues. Another theme suggested that some participants felt they had reached the 'right' age and needed to spend more time with family. Having the financial capacity to retire was widely mentioned but was never the main factor. CONCLUSIONS: The decision to retire during the pandemic was multi-factorial although changes to work during lockdown were of great importance. Post-pandemic, our findings suggest that there are modifiable aspects of work, including appreciation and fair pay and work conditions, that employers and policy makers could encourage to retain their older workers.


Asunto(s)
COVID-19 , Masculino , Persona de Mediana Edad , Humanos , Femenino , Anciano , COVID-19/epidemiología , Control de Enfermedades Transmisibles , Pandemias , Jubilación , Empleo
2.
Osteoporos Int ; 34(7): 1269-1279, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37103591

RESUMEN

Systematic review and meta-analysis of the effect of moderate- to high-dose vitamin D supplementation in pregnancy on offspring bone mineralisation found a positive effect of vitamin D supplementation on offspring bone mineral density (BMD) at age 4-6 years, with a smaller effect on bone mineral content. PURPOSE: A systematic review and meta-analysis was performed to assess the effect of pregnancy vitamin D supplementation on offspring bone mineral density (BMD) in childhood. METHODS: A literature search was conducted for published RCTs of antenatal vitamin D supplementation with assessment of offspring BMD or bone mineral content (BMC) by dual-energy X-ray absorptiometry (DXA) using MEDLINE and EMBASE up to 13th July 2022. Risk of bias was assessed using the Cochrane Risk of Bias 2 tool. Study findings were grouped in two age groups of offspring assessment: neonatal period and early childhood (3-6 years). Random-effects meta-analysis of the effect on BMC/BMD at 3-6 years was performed using RevMan 5.4.1, yielding standardised mean difference (SMD) (95% CI). RESULTS: Five RCTs were identified with offspring assessment of BMD or BMC; 3250 women were randomised within these studies. Risk of bias was low in 2 studies and "of concern" in 3. Supplementation regimes and the control used (3 studies used placebo and 2 used 400 IU/day cholecalciferol) varied, but in all studies the intervention increased maternal 25-hydroxvitamin D status compared to the control group. Two trials assessing BMD in the neonatal period (total n = 690) found no difference between groups, but meta-analysis was not performed as one trial represented 96.4% of those studied at this age. Three trials assessed offspring whole-body-less-head BMD at age 4-6 years. BMD was higher in children born to mothers supplemented with vitamin D [0.16 SD (95% confidence interval 0.05, 0.27), n = 1358] with a smaller effect on BMC [0.07 SD (95% CI - 0.04, 0.19), n = 1351]. CONCLUSIONS: There are few RCTs published to address this question, and these are inconsistent in methodology and findings. However, meta-analysis of three trials suggests moderate- to high-dose vitamin D supplementation in pregnancy might increase offspring BMD in early childhood, but further trials are required to confirm this finding. (Prospero CRD42021288682; no funding received).


Asunto(s)
Densidad Ósea , Vitamina D , Niño , Recién Nacido , Femenino , Preescolar , Humanos , Embarazo , Vitamina D/uso terapéutico , Vitaminas/farmacología , Colecalciferol , Suplementos Dietéticos , Ensayos Clínicos Controlados Aleatorios como Asunto
3.
J Public Health (Oxf) ; 45(4): e755-e762, 2023 Nov 29.
Artículo en Inglés | MEDLINE | ID: mdl-37385972

RESUMEN

BACKGROUND: Previous studies of the UK Biobank have examined intake of single food items and their association with health outcomes. Our aim was to develop a dietary quality score and examine the relationship between this score and markers of cardiometabolic health. METHODS: Principal component analysis was performed on dietary data from UK Biobank participants. Linear regression was used to analyse the relationship between diet and cardiometabolic health. RESULTS: The first component explained 14% of the variation in the dietary data. It was characterised by high consumption of meat and low fibre carbohydrates, and a low intake of fruit and vegetables. A higher score, indicative of healthier diet, was associated with lower systolic and diastolic blood pressure (ß -0.81, 95% CI -1.0, -0.62; ß - .61, 95% CI -0.72, -0.5) and a healthier lipid profile (lower levels of cholesterol ß -0.05, 95% CI -0.06, -0.04, triglycerides ß -0.05, 95% CI -0.06, -0.03, and higher HDL cholesterol ß 0.01, 95% CI 0, 0.01). CONCLUSIONS: The dietary quality score was a good approximation of overall dietary quality. An unhealthy diet was associated with markers of poorer cardiometabolic health.


Asunto(s)
Bancos de Muestras Biológicas , Enfermedades Cardiovasculares , Humanos , Dieta , Colesterol , Reino Unido
4.
J Public Health (Oxf) ; 45(3): 738-747, 2023 08 28.
Artículo en Inglés | MEDLINE | ID: mdl-36585903

RESUMEN

BACKGROUND: Observational studies relating maternal 25-hydroxyvitamin D status to timing and mode of delivery have reported inconsistent results. We assessed the effect of antenatal cholecalciferol supplementation on the incidence of preterm birth, delivery mode and post-partum haemorrhage (PPH). METHODS: MAVIDOS was a randomized, double-blind, placebo-controlled trial of 1000 IU/day cholecalciferol from 14 weeks' gestation until delivery. Gestational age, mode of delivery [categorized as spontaneous vaginal delivery (SVD), instrumental (including forceps and vacuum extraction) or Caesarean section] and PPH (>500 ml estimated blood loss) were determined from medical records. RESULTS: A total of 965 women participated in the study until delivery. Gestation at birth and incidence of preterm birth (cholecalciferol 5.7%, placebo 4.5%, P = 0.43) were similar between the two treatment groups. SVD (versus instrumental or Caesarean delivery) was more likely in women randomized to cholecalciferol [Relative Risk (RR) 1.13, 95% confidence interval (CI) 1.02,1.25] due to lower instrumental (RR 0.68, 95%CI 0.51,0.91) but similar risk of Caesarean delivery (RR 0.94, 95%CI 0.74,1.19). PPH was less common in women randomized to cholecalciferol [32.1% compared with placebo (38.1%, P = 0.054) overall], but similar when stratified by delivery mode. CONCLUSIONS: Antenatal cholecalciferol supplementation did not alter timing of birth or prevalence of preterm birth but demonstrated a possible effect on the likelihood of SVD.


Asunto(s)
Cesárea , Nacimiento Prematuro , Embarazo , Femenino , Recién Nacido , Humanos , Cesárea/efectos adversos , Nacimiento Prematuro/epidemiología , Nacimiento Prematuro/prevención & control , Colecalciferol/uso terapéutico , Parto Obstétrico , Suplementos Dietéticos
5.
Nutr Health ; 29(4): 645-651, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35388722

RESUMEN

Background: A well-balanced diet is essential in sport. Due to its typical content in high-quality proteins, low glycemic index foods, and unsaturated fats, Mediterranean Diet (MD) may represent a good choice to cover nutritional needs of athletes. The aim of this study was to explore how the dietary habits of elite athletes, such as those competing at the XXX Summer Universiade, comply with the MD model. A comparison between athletes coming from the Mediterranean and non-Mediterranean countries was also assessed. Methods: The Mediterranean Diet Serving Score (MDSS) questionnaire was administered to a sample of 433 university student athletes from all over of the world to evaluate the level of adherence to the MD pattern and possible differences between geographical areas. Results: The total sample showed a medium adherence to the MD, with a mean MDSS of 15.73 ± 3.71 out of a total of 23 points. A satisfactory consumption of fruits and vegetables was reported. Athletes from Northern European countries had a lower MD pattern adherence than the other ones. Conclusions: These findings suggest that the MD model is common among elite athletes, and it may be promoted as a healthy dietary pattern in the sport setting.


Asunto(s)
Dieta Mediterránea , Deportes , Humanos , Conducta Alimentaria , Atletas , Frutas
6.
Br J Dermatol ; 187(5): 659-666, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35763390

RESUMEN

BACKGROUND: Evidence linking prenatal maternal vitamin D supplementation with the offspring's risk of atopic eczema is inconsistent, with most data coming from observational studies. OBJECTIVES: To examine the influence of maternal cholecalciferol supplementation during pregnancy on the risk of atopic eczema in the offspring at ages 12, 24 and 48 months. METHODS: Within the UK Maternal Vitamin D Osteoporosis Study (MAVIDOS) double-blind, randomized placebo-controlled trial, we examined the relationship of maternal vitamin D supplementation during pregnancy with offspring atopic eczema at ages 12, 24 and 48 months. In MAVIDOS, pregnant women were allocated to either cholecalciferol 1000 IU per day or matched placebo, taken from around 14 weeks' gestation until delivery, with the primary outcome of neonatal whole-body bone mineral content. The prevalence of atopic eczema in the offspring was ascertained at ages 12 (n = 635), 24 (n = 610) and 48 (n = 449) months, based on the UK Working Party criteria for the definition of atopic dermatitis. The trial was registered with ISRCTN (82927713) and EudraCT (2007-001716-23). RESULTS: The characteristics of mothers and offspring were similar between the intervention and placebo groups, apart from longer breastfeeding duration in the intervention group. Adjusting for breastfeeding duration, offspring of mothers who received cholecalciferol 1000 IU daily had a lower odds ratio (OR) of atopic eczema at age 12 months [OR 0·55, 95% confidence interval (CI) 0·32-0·97, P = 0·04]; this effect weakened and was not statistically significant at ages 24 months (OR 0·76, 95% CI 0·47-1·23) or 48 months (OR 0·75, 95% CI 0·37-1·52). The statistical interaction of intervention and breastfeeding duration in relation to eczema at age 12 months was not significant (P = 0·41), but stratification showed reduced infantile eczema risk in the intervention group for infants breastfed for ≥ 1 month (OR 0·48, 95% CI 0·24-0·94, P = 0·03) but not in those breastfed for < 1 month (OR 0·80, 95% CI 0·29-2·17, P = 0·66). CONCLUSIONS: Our data provide the first randomized controlled trial evidence of a protective effect of antenatal cholecalciferol supplementation on the risk of infantile atopic eczema, with the effect potentially being via increased breast milk cholecalciferol levels. The findings support a developmental influence on atopic eczema, and point to a potentially modifiable perinatal influence on atopic eczema. What is already known about this topic? There are currently no antenatal interventions proven to reduce the incidence of infantile atopic eczema in the general population. However, observational studies have led to speculation that antenatal vitamin D supplementation may be beneficial.


Asunto(s)
Dermatitis Atópica , Osteoporosis , Lactante , Recién Nacido , Humanos , Femenino , Embarazo , Niño , Preescolar , Vitamina D , Dermatitis Atópica/epidemiología , Dermatitis Atópica/prevención & control , Suplementos Dietéticos , Vitaminas , Colecalciferol , Método Doble Ciego
7.
BMC Public Health ; 22(1): 1902, 2022 10 12.
Artículo en Inglés | MEDLINE | ID: mdl-36224577

RESUMEN

BACKGROUND: The COVID-19 pandemic markedly disrupted people's lives. It caused higher mortality and morbidity amongst individuals from poorer socio-economic position (SEP). It is well-recognised that job loss has a negative impact on health. We hypothesised that health effects of the pandemic on middle-aged people might be different depending on SEP and changes in employment. METHODS: Data are from the Health and Employment After Fifty (HEAF), a cohort recruited 2013-2014 when aged 50-64 through 24 English general practices. At baseline and annually since, participants completed a questionnaire reporting about demographics, employment, health, lifestyle, and finances. In 2021 we sent an e-survey to all contactable HEAF participants, asking about effects of the first lockdown (March-July 2020). Outcomes were participants' perception of worsening of mental, physical health, and self-rated health (SRH) since lockdown. Associations between SEP, COVID-19 related employment changes and health were explored with Poisson regression with robust standard error, with adjustment for age, sex, and pre-pandemic SRH. RESULTS: In total, 2,469 (53%) returned a usable questionnaire, amongst whom 2,344 provided complete information for these analyses (44% men, mean age 65.7 years). Worsening of mental, physical or SRH since lockdown was reported by 21%, 27% and 17% respectively. Mutually adjusted models showed that reporting struggling financially pre-pandemic (versus living comfortably) was associated with an increased risk of deterioration in: mental (RR = 2.0, 95%CI 1.7-2.5), physical health (RR = 2.0, 95%CI 1.6-2.3), and SRH (RR = 1.6, 95%CI 1.2-2.1). Participants working from home during lockdown and those who lost their job (as opposed to those with unchanged employment) were at increased risk of reporting deterioration in mental health and SRH. CONCLUSION: In a cohort of older workers, working from home, job loss and poorer pre-pandemic SEP were all associated with worsening of mental health and SRH since lockdown.


Asunto(s)
COVID-19 , Pandemias , Anciano , COVID-19/epidemiología , Control de Enfermedades Transmisibles , Estatus Económico , Empleo , Inglaterra/epidemiología , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad
8.
Occup Environ Med ; 78(1): 36-42, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32917741

RESUMEN

OBJECTIVES: Health and job satisfaction are key independent determinants of ability to work to older ages. We investigated the interaction of these two important factors on health-related job loss (HRJL) over 2 years of follow-up comparing male and female older workers. METHODS: A population sample of adults aged 50-64 years, recruited from 24 English general practices in the Health and Employment After Fifty (HEAF) study, completed questionnaires at baseline with follow-ups at 12 and 24 months. Multiple-record Cox proportional hazards models were performed to explore the main effects of, and potential interactions between, job satisfaction and self-rated health (SRH) as predictors of time to first HRJL. RESULTS: Of the initial 8134 participants, 5143 were ever in work in the study period. Among men, 5.7% and 14.3% reported job dissatisfaction (those in good and poor SRH, respectively), while among women these percentages were 4.6 and 12.9. HRJL was reported by 106 men and 176 women. Men in good health dissatisfied with their job had a sixfold (HR=6.4; 95% CI 3.3 to 12.4) increased risk of HRJL compared with men satisfied with their job (significant multiplicative interaction). Women dissatisfied with their job were more likely to have an HRJL within 2 years of follow-up irrespective of their SRH. CONCLUSIONS: SRH and job dissatisfaction have important individual effects on the risk of stopping work for health among older workers. These findings point to the importance of job satisfaction in reducing health-related exit from paid work among older workers.


Asunto(s)
Empleo/estadística & datos numéricos , Estado de Salud , Satisfacción en el Trabajo , Envejecimiento , Inglaterra , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores Socioeconómicos , Encuestas y Cuestionarios
9.
BMC Public Health ; 21(1): 574, 2021 03 23.
Artículo en Inglés | MEDLINE | ID: mdl-33757464

RESUMEN

BACKGROUND: Loneliness is an important public health issue associated with mortality and morbidity. Often researched amongst older people, less is known about risk factors for loneliness among adults aged 50-64 years who are in work. We investigated (a) if exit from the workforce increases the odds of loneliness; (b) whether adverse psychosocial work factors are associated with increased odds of loneliness over 2 years of follow-up; and (c) whether the association is stronger among subjects still working compared with those who have exited the workforce. METHODS: Data came from the Health and Employment After Fifty (HEAF) study, a large population cohort who provided questionnaire information about work and health at baseline and 2 annual follow-ups. Logistic regression was used to explore the association between psychosocial risk factors and loneliness at follow-up 2, with adjustment for loneliness at baseline, sex, age, self-rated health, living alone, and mental health diagnosis. RESULTS: Of the initial 8134 participants, 4521 were working at baseline and provided data for this analysis. Of those, 507 (11.2%) were defined as lonely at 2 years' follow-up. Exiting the workforce was not significantly associated with loneliness (OR = 1.1, 95%CI: 0.7-1.7). However, negative psychosocial work factors predicted loneliness at follow-up. After mutual adjustment, lack of choice at work (OR: 1.5, 95%CI: 1.1-1.9), often lying awake worrying about work (OR: 1.4, 95%CI: 1.0-1.9) and perceived not coping with physical demands of the job (OR: 1.3, 95%CI: 1.0-1.7) were independent predictors, with associations robust to adjustment for demographic factors and health. Associations were only slightly altered when we restricted the sample to those who remained in work until the end of follow-up. CONCLUSIONS: Loneliness amongst middle-aged working adults is not predicted by permanent work exit but is predicted by individuals' perceptions about their work. Provision of good-quality work, matched to the capacity of the older worker, could prevent loneliness.


Asunto(s)
Empleo , Soledad , Adulto , Anciano , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Percepción , Encuestas y Cuestionarios
10.
Eur J Public Health ; 30(4): 799-806, 2020 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-32494804

RESUMEN

BACKGROUND: To investigate the prevalence of caregiving and its relationship with work, health and socio-economic circumstances in the Health and Employment After Fifty (HEAF) study. METHODS: The HEAF study comprises 8134 men and women aged 50-64 years recruited from 24 general practices. Socio-demographic, lifestyle and health characteristics and hours per week giving personal care were elicited by postal questionnaire. Objective clinical information about diagnoses/medications was retrieved from health records. Work-related and health risk factors for intense caring responsibilities (≥20 h/week vs. no hours) were explored using logistic regression with adjustment for age and social class. RESULTS: In all, 644 (17%) men and 1153 (26%) women reported caring responsibilities, of whom 93 and 199 were intense caregivers, who were more likely to be socio-economically disadvantaged; less likely to be working and, if combining caring with working (41 men and 90 women), more likely to be part-time/working shifts, than non-carers. Men caring ≥20 h/week were more likely to have COPD and to report musculoskeletal pain, poor/fair self-rated health, depression and sleep problems. Among working women, caring ≥20 h/week was associated with these same health outcomes and also with a doctor-diagnosed mental health problem or musculoskeletal pain in the previous year. CONCLUSIONS: Caregiving is common and unequal in the HEAF cohort, with more high-intensity informal care provided by those with greater levels of socio-economic deprivation, which could affect their employment and health. Caregivers need support to lead long, healthy lives, rather than becoming care needers themselves. Employers and governments need to take caregiving into account and support it actively.


Asunto(s)
Empleo , Mujeres Trabajadoras , Cuidadores , Inglaterra/epidemiología , Femenino , Humanos , Masculino , Clase Social
11.
BMC Musculoskelet Disord ; 21(1): 209, 2020 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-32252744

RESUMEN

BACKGROUND: Axial spondyloarthritis (axSpA) frequently presents during working age and therefore impacts work participation. Biologic therapies have demonstrated a positive impact on work-related outcomes in clinical trials but real world data are limited. Therefore, we investigated the prevalence and predictors of work impairment and disability among axSpA patients attending a biologic therapy clinic. METHODS: This was a single-centre, cross-sectional study of patients with axSpA treated with biologic therapy. Work participation was assessed with the Work Productivity and Activity Impairment (WPAI) Questionnaire. Work outcomes (presenteeism, absenteeism, health-related job loss) were compared for gender, time since diagnosis, smoking status and disease outcome measures. RESULTS: Data were available for 165 patients (mean age 47.6 years, 75% male, 21% current smokers). Mean time since diagnosis was 15.5 years and mean duration of biologic therapy 4.7 years; 19/165 (11.5%) were on a tapered-dose regimen. Occupational data were available for 144 patients amongst whom 101 (70.1%) were either currently employed or in full time education. Of those eligible to work, 17/118 (14.4%) reported inability to work due to their axSpA. Amongst those in employment, 10.8% reported absenteeism due to axSpA in the week prior to their clinic visit (mean hours missed = 13). The mean work productivity impairment was 23%. Higher disease activity (BASDAI) and markers of global health, quality of life and pain, (BAS-G, ASQoL and spinal pain VAS) were associated with axSpA related job loss, absenteeism and presenteeism. CONCLUSIONS: In this group of axSpA patients on biologic therapy (mean age 47.6 years), almost 1 in 6 (14.4%) reported axSpA related job loss. Poor work outcomes: axSpA-related work disability, absenteeism and presenteeism were associated with poorer scores for patient-reported disease outcome measures. Strategies for enhancing work productivity should be directed towards those patients at risk of poor work outcomes. More data are needed including details of the types of work that are most difficult with axSpA.


Asunto(s)
Terapia Biológica , Empleo , Medición de Resultados Informados por el Paciente , Espondiloartritis/diagnóstico , Evaluación de Capacidad de Trabajo , Absentismo , Adulto , Estudios Transversales , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Presentismo , Calidad de Vida , Ausencia por Enfermedad , Espondiloartritis/psicología , Espondiloartritis/terapia , Encuestas y Cuestionarios
12.
Int J Mol Sci ; 21(16)2020 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-32781724

RESUMEN

The prevalence of obesity has steadily increased worldwide over the past three decades. The conventional approaches to prevent or treat this syndrome and its associated complications include a balanced diet, an increase energy expenditure, and lifestyle modification. Multiple pharmacological and non-pharmacological interventions have been developed with the aim of improving obesity complications. Recently, the use of functional foods and their bioactive components is considered a new approach in the prevention and management of this disease. Due to their biological properties, polyphenols may be considered as nutraceuticals and food supplement recommended for different syndromes. Polyphenols are a class of naturally-occurring phytochemicals, some of which have been shown to modulate physiological and molecular pathways involved in energy metabolism. Polyphenols could act in the stimulation of ß-oxidation, adipocyte differentiation inhibition, counteract oxidative stress, etc. In this narrative review, we considered the association between polyphenols (resveratrol, quercetin, curcumin, and some polyphenolic extracts) and obesity, focusing on human trials. The health effects of polyphenols depend on the amount consumed and their bioavailability. Some results are contrasting, probably due to the various study designs and lengths, variation among subjects (age, gender, ethnicity), and chemical forms of the dietary polyphenols used. But, in conclusion, the data so far obtained encourage the setting of new trials, necessary to validate benefic role of polyphenols in obese individuals.


Asunto(s)
Fármacos Antiobesidad/farmacología , Polifenoles/farmacología , Animales , Fármacos Antiobesidad/química , Fármacos Antiobesidad/farmacocinética , Disponibilidad Biológica , Alimentos , Humanos , Polifenoles/química , Polifenoles/farmacocinética
13.
Int J Mol Sci ; 21(3)2020 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-32046164

RESUMEN

The endocannabinoid system (ES) is a cell-signalling system widely distributed in biological tissues that includes endogenous ligands, receptors, and biosynthetic and hydrolysing machineries. The impairment of the ES has been associated to several pathological conditions like behavioural, neurological, or metabolic disorders and infertility, suggesting that the modulation of this system may be critical for the maintenance of health status and disease treatment. Lifestyle and environmental factors can exert long-term effects on gene expression without any change in the nucleotide sequence of DNA, affecting health maintenance and influencing both disease load and resistance. This potentially reversible "epigenetic" modulation of gene expression occurs through the chemical modification of DNA and histone protein tails or the specific production of regulatory non-coding RNA (ncRNA). Recent findings demonstrate the epigenetic modulation of the ES in biological tissues; in the same way, endocannabinoids, phytocannabinoids, and cannabinoid receptor agonists and antagonists induce widespread or gene-specific epigenetic changes with the possibility of trans-generational epigenetic inheritance in the offspring explained by the transmission of deregulated epigenetic marks in the gametes. Therefore, this review provides an update on the epigenetics of the ES, with particular attention on the emerging role in reproduction and fertility.


Asunto(s)
Endocannabinoides/metabolismo , Epigénesis Genética , Receptores de Cannabinoides/metabolismo , Animales , Ambiente , Humanos , Receptores de Cannabinoides/genética , Estrés Fisiológico
14.
Curr Sports Med Rep ; 19(7): 260-265, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32692061

RESUMEN

An athlete's dietary requirements depend on several aspects, including the environment, the sport, and the athlete's goals. Although it is recognized that regular exercise improves muscle performance and energy metabolism, unaccustomed or excessive exercise may cause cell damage and impair muscle function by triggering tissue inflammation and oxidative stress. Supplement use among athletes is widespread and recently new attention has been applied to polyphenols. Polyphenols are a class of organic chemical compounds, mainly found in plants, characterized by the presence of multiples of phenol structural units, and over recent decades, special attention has been paid to the healthy role of fruit-derived polyphenols in the human diet. This article will summarize latest knowledge on polyphenolic compounds that have been demonstrated both to exert an effect in exercise-induced muscle damage and to play a biological/physiological role in improving physical performance.


Asunto(s)
Ejercicio Físico/fisiología , Inflamación/dietoterapia , Enfermedades Musculares/dietoterapia , Estrés Oxidativo/fisiología , Rendimiento Físico Funcional , Fitoquímicos/farmacología , Polifenoles/farmacología , Humanos , Fenómenos Fisiológicos en la Nutrición Deportiva
15.
Occup Environ Med ; 74(7): 476-482, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28062832

RESUMEN

OBJECTIVES: Demographic changes are requiring people to work longer. No previous studies, however, have focused on whether the 'frailty' phenotype (which predicts adverse events in the elderly) is associated with employment difficulties. To provide information, we assessed associations in the Health and Employment After Fifty Study, a population-based cohort of 50-65-year olds. METHODS: Subjects, who were recruited from 24 English general practices, completed a baseline questionnaire on 'prefrailty' and 'frailty' (adapted Fried criteria) and several work outcomes, including health-related job loss (HRJL), prolonged sickness absence (>20 days vs less, past 12 months), having to cut down substantially at work and difficulty coping with work's demands. Associations were assessed using logistic regression and population attributable fractions (PAFs) were calculated. RESULTS: In all, 3.9% of 8095 respondents were classed as 'frail' and 31.6% as 'prefrail'. Three-quarters of the former were not in work, while 60% had left their last job on health grounds (OR for HRJL vs non-frail subjects, 30.0 (95% CI 23.0 to 39.2)). Among those in work, ORs for prolonged sickness absence, cutting down substantially at work and struggling with work's physical demands ranged from 10.7 to 17.2. The PAF for HRJL when any frailty marker was present was 51.8% and that for prolonged sickness absence was 32.5%. Associations were strongest with slow reported walking speed. Several associations were stronger in manual workers than in managers. CONCLUSIONS: Fried frailty symptoms are not uncommon in mid-life and are strongly linked with economically important adverse employment outcomes. Frailty could represent an important target for prevention.


Asunto(s)
Empleo/estadística & datos numéricos , Evaluación Geriátrica/estadística & datos numéricos , Ausencia por Enfermedad/estadística & datos numéricos , Anciano , Empleo/psicología , Inglaterra , Ejercicio Físico , Femenino , Medicina General , Evaluación Geriátrica/métodos , Humanos , Modelos Logísticos , Masculino , Trastornos Mentales/epidemiología , Persona de Mediana Edad , Enfermedades Musculoesqueléticas/epidemiología , Prevalencia , Encuestas y Cuestionarios
16.
Occup Environ Med ; 73(8): 512-9, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27152012

RESUMEN

OBJECTIVES: Demographic changes are requiring people to work longer. Labour force participation might be promoted by tackling sources of job dissatisfaction. We aimed to describe the epidemiology of job dissatisfaction in older British workers, to explore which perceptions of work contribute most importantly, and to assess possible impacts on health. METHODS: Participants aged 50-64 years were recruited from 24 English general practices. At baseline, those currently in work (N=5437) reported on their demographic and employment circumstances, overall job satisfaction, perceptions of their work that might contribute to dissatisfaction, and their general health, mood and well-being. Associations of job dissatisfaction with risk factors and potential health outcomes were assessed cross-sectionally by logistic regression, and the potential contributions of different negative perceptions to overall dissatisfaction were summarised by population attributable fractions (PAFs). RESULTS: Job dissatisfaction was more common among men, below age 60 years, those living in London and the South East, in the more educated and in those working for larger employers. The main contributors to job dissatisfaction among employees were feeling unappreciated and/or lacking a sense of achievement (PAF 55-56%), while in the self-employed, job insecurity was the leading contributor (PAF 79%). Job dissatisfaction was associated with all of the adverse health outcomes examined (ORs of 3-5), as were most of the negative perceptions of work that contributed to overall dissatisfaction. CONCLUSIONS: Employment policies aimed at improving job satisfaction in older workers may benefit from focussing particularly on relationships in the workplace, fairness, job security and instilling a sense of achievement.


Asunto(s)
Empleo/psicología , Satisfacción en el Trabajo , Exposición Profesional , Trabajo , Lugar de Trabajo , Logro , Factores de Edad , Estudios Transversales , Inglaterra , Femenino , Salud , Humanos , Modelos Logísticos , Londres , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Factores de Riesgo , Factores Sexuales , Estrés Psicológico
17.
Occup Environ Med ; 72(3): 195-9, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25523936

RESUMEN

OBJECTIVES: Sensory impairments are becoming increasingly common in the workforces of Western countries. To assess their role in occupational injury, and that of disorders of balance, we undertook a case-control study. METHODS: Using the Clinical Practice Research Datalink, which documents all medical consultations, referrals and diagnoses in primary care for 6% of the British population, we identified 1348 working-aged patients who had consulted medical services over a 22-year period for workplace injury (cases) and 6652 age-matched, sex-matched and practice-matched controls. Risks were assessed by conditional logistic regression, for earlier recorded diagnoses of visual impairment, common eye diseases, hearing loss, perforated ear drum, non-acute otitis media and disorders of balance. RESULTS: In all, 173 (2.2%) participants had an earlier eye problem, 792 (9.9%) an ear problem (including 336 with impaired hearing and 482 with non-acute otitis media) and 266 (3.3%) a disorder of balance. No associations were found with glaucoma, cataract, retinal disorders or perforation of the ear drum specifically, but adjusted ORs were moderately elevated for eye and ear problems more generally, and higher where there was a record of blindness or partial sight (OR 1.90, 95% CI 1.05 to 3.44) or non-acute otitis media (OR 2.04, 95% CI 1.64 to 2.54). Risks for non-acute otitis media and for disorders of balance were particularly elevated for consultations in the 12 months preceding injury consultation (OR 2.70, 95% CI 1.58 to 4.62 and 1.77, 95% CI 1.01 to 3.11, respectively). CONCLUSIONS: Problems of vision, impairments of hearing and disorders of balance all may carry moderately increased risks of occupational injury.


Asunto(s)
Traumatismos Ocupacionales/etiología , Equilibrio Postural , Trastornos de la Sensación/complicaciones , Adolescente , Adulto , Estudios de Casos y Controles , Oftalmopatías/complicaciones , Femenino , Trastornos de la Audición/complicaciones , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Medición de Riesgo , Factores de Riesgo , Reino Unido , Trastornos de la Visión/complicaciones , Adulto Joven
18.
BMC Public Health ; 15: 1071, 2015 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-26482655

RESUMEN

BACKGROUND: Demographic trends in developed countries have prompted governmental policies aimed at extending working lives. However, working beyond the traditional retirement age may not be feasible for those with major health problems of ageing, and depending on occupational and personal circumstances, might be either good or bad for health. To address these uncertainties, we have initiated a new longitudinal study. METHODS/DESIGN: We recruited some 8000 adults aged 50-64 years from 24 British general practices contributing to the Clinical Practice Research Datalink (CPRD). Participants have completed questionnaires about their work and home circumstances at baseline, and will do so regularly over follow-up, initially for a 5-year period. With their permission, we will access their primary care health records via the CPRD. The inter-relation of changes in employment (with reasons) and changes in health (e.g., major new illnesses, new treatments, mortality) will be examined. DISCUSSION: CPRD linkage allows cost-effective frequent capture of detailed objective health data with which to examine the impact of health on work at older ages and of work on health. Findings will inform government policy and also the design of work for older people and the measures needed to support employment in later life, especially for those with health limitations.


Asunto(s)
Envejecimiento , Empleo , Estado de Salud , Salud , Jubilación , Trabajo , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Proyectos de Investigación , Encuestas y Cuestionarios , Reino Unido
19.
Occup Environ Med ; 71(5): 308-12, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24627304

RESUMEN

OBJECTIVES: Mental illness and psychotropic drugs have been linked with workplace injury, but few studies have measured exposures and outcomes independently or established their relative timings. To address this shortcoming, we conducted a case-control study nested within a database prospectively recording injury consultations, diagnoses and drug prescriptions. METHODS: The Clinical Practice Research Datalink logs primary care data for 6% of the British population, coding all consultations (by the Read system) and drug prescriptions. We identified 1348 patients aged 16-64 years from this database who had consulted a family doctor or hospital over a 20-year period for workplace injury (cases, 479 diagnostic codes) and 6652 age, sex and practice-matched controls with no such consultation. Groups were compared in terms of consultations for mental health problems (1328 codes) and prescription of psychotropic drugs prior to the case's injury consultation using conditional logistic regression. RESULTS: In total, 1846 (23%) subjects had at least one psychiatric consultation before the index date and 1682 (21%) had been prescribed a psychotropic drug. The OR for prior mental health consultation was 1.44 (p<0.001) and that for psychotropic drug treatment was 1.57 (p<0.001). Risks were significantly elevated for several subclasses of mental health diagnosis (eg, psychosis, neurosis) and for each of the drug classes analysed. Assuming causal relationships, about 9-10% of all workplace injuries leading to medical consultation were attributable to mental illness or psychotropic medication. CONCLUSIONS: Mental health problems and psychotropic treatments may account for an important minority of workplace injuries.


Asunto(s)
Accidentes de Trabajo , Trastornos Mentales/complicaciones , Traumatismos Ocupacionales/etiología , Psicotrópicos/efectos adversos , Accidentes de Trabajo/psicología , Adulto , Estudios de Casos y Controles , Bases de Datos Factuales , Femenino , Humanos , Modelos Logísticos , Masculino , Trastornos Mentales/tratamiento farmacológico , Persona de Mediana Edad , Traumatismos Ocupacionales/psicología , Oportunidad Relativa , Prescripciones , Psicotrópicos/uso terapéutico , Derivación y Consulta , Factores de Riesgo , Reino Unido
20.
Occup Environ Med ; 71(4): 241-5, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24449599

RESUMEN

AIMS: The relation between Dupuytren's contracture and occupational exposure to hand-transmitted vibration (HTV) has frequently been debated. We explored associations in a representative national sample of workers with well-characterised exposure to HTV. METHODS: We mailed a questionnaire to 21 201 subjects aged 16-64 years, selected at random from the age-sex registers of 34 general practices in Great Britain and to 993 subjects chosen randomly from military pay records, asking about occupational exposure to 39 sources of HTV and about fixed flexion contracture of the little or ring finger. Analysis was restricted to men at work in the previous week. Estimates were made of average daily vibration dose (A(8) root mean squared velocity (rms)) over that week. Associations with Dupuytren's contracture were estimated by Poisson regression, for lifetime exposure to HTV and for exposures in the past week >A(8) of 2.8 ms(-2) rms. Estimates of relative risk (prevalence ratio (PR)) were adjusted for age, smoking status, social class and certain manual activities at work. RESULTS: In all 4969 eligible male respondents supplied full information on the study variables. These included 72 men with Dupuytren's contracture, 2287 with occupational exposure to HTV and 409 with A(8)>2.8 ms(-2) in the past week. PRs for occupational exposure to HTV were elevated 1.5-fold. For men with an A(8)>2.8 ms(-2) in the past week, the adjusted PR was 2.85 (95% CI 1.37 to 5.97). CONCLUSIONS: Our findings suggest that risk of Dupuytren's contracture is more than doubled in men with high levels of weekly exposure to HTV.


Asunto(s)
Contractura de Dupuytren/etiología , Síndrome por Vibración de la Mano y el Brazo/complicaciones , Mano , Exposición Profesional/efectos adversos , Vibración , Adolescente , Adulto , Dedos , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Rango del Movimiento Articular , Factores de Riesgo , Encuestas y Cuestionarios , Reino Unido , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA