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1.
Lancet ; 402 Suppl 1: S86, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37997132

RESUMO

BACKGROUND: Type 2 diabetes is a public health priority for the UK. A growing body of evidence has indicated ethnic and socioeconomic disparities in rates of diabetes prevalence and complications. Attendance at diabetes follow-up checks is key to ensuring complications are identified and managed at an early stage. The aim of this rapid review was to identify and summarise evidence of ways to improve diabetes management in ethnic minority groups. METHODS: In this rapid review, we searched PubMed, PsycInfo, and CINAHL for studies published in English between Jan 1, 2000, and Jan 31, 2023. Studies were included if the population was from ethnic minority groups and if the intervention was community-based and aimed to improve diabetes self-care. The comparisons were persuasion and behaviour change, and the outcomes were improved diabetes self-management including, glycaemic control, attending eye tests, kidney, and foot screening follow-up checks. This study is registered with PROSPERO 2023, CRD42023399283. FINDINGS: Nine studies were included, from Mexico (n=1), USA (n=7), and UK (n=1). Most studies reported on community engagement (n=8), and one focussed on peer support and diabetes self-management. Peer support and diabetes self-management education were found to significantly improve diabetes control in a Mayan community (n=29) in Mexico (p<0·0001) and in the Korean American (n=105), African American (n=107), and Latino American (n=56) communities in the USA. Another study showed that women from the Pakistani community in England also benefitted from a culturally appropriate and socially supportive environment when learning about diabetes self-management. Diabetic eye screening rates could be increased through education but not through incentive payments. INTERPRETATION: Culturally competent health-care policies and programmes have been shown to increase diabetes self-management including uptake of diabetes screening for people with diabetes from ethnic minority communities to avoid potential harmful and life limiting conditions. A strength of this review is that robust, recent, and relevant papers regarding self-management of diabetes were included. The main limitations were that none of the nine studies included any cost analyses, and only one UK-based study was included, indicating that further research is required to fill the evidence gap. FUNDING: Research for Patient and Public Benefit (RfPPB), Health and Care Research Wales.


Assuntos
Diabetes Mellitus Tipo 2 , Grupos Minoritários , Humanos , Feminino , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/terapia , Etnicidade , Seguimentos , Comportamentos Relacionados com a Saúde
2.
Diabetes Obes Metab ; 25(8): 2243-2254, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37139857

RESUMO

AIMS: To assess if the risk of all-cause mortality increases in people with type 1 diabetes (T1D) with increasing number of severe hypoglycaemia episodes requiring hospitalization. MATERIALS AND METHODS: We conducted a national retrospective observational cohort study in people with T1D (diagnosed between 2000 and 2018). Clinical, comorbidity and demographic variables were assessed for impact on mortality for people with no, one, two and three or more episodes of severe hypoglycaemia requiring hospitalization. The time to death (all-cause mortality) from the timepoint of the last episode of severe hypoglycaemia was modelled using a parametric survival model. RESULTS: A total of 8224 people had a T1D diagnosis in Wales during the study period. The mortality rate (95% confidence interval [CI]) was 6.9 (6.1-7.8) deaths/ 1000 person-years (crude) and 15.31 (13.3-17.63) deaths/ 1000 person-years (age-adjusted) for those with no occurrence of severe hypoglycaemia requiring hospitalization. For those with one episode of severe hypoglycaemia requiring hospitalization the mortality rate (95% CI) was 24.9 (21.0-29.6; crude) and 53.8 (44.6-64.7) deaths/ 1000 person-years (age-adjusted), for those with two episodes of severe hypoglycaemia requiring hospitalization it was 28.0 (23.1-34.0; crude) and 72.8 (59.2-89.5) deaths/ 1000 person-years (age-adjusted), and for those with three or more episodes of severe hypoglycaemia requiring hospitalization it was 33.5 (30.0-37.3; crude) and 86.3 (71.7-103.9) deaths/ 1000 person years (age-adjusted; P < 0.001). A parametric survival model showed that having two episodes of severe hypoglycaemia requiring hospitalization was the strongest predictor for time to death (accelerated failure time coefficient 0.073 [95% CI 0.009-0.565]), followed by having one episode of severe hypoglycaemia requiring hospitalization (0.126 [0.036-0.438]) and age at most recent episode of severe hypoglycaemia requiring hospitalization (0.917 [0.885-0.951]). CONCLUSIONS: The strongest predictor for time to death was having two or more episodes of severe hypoglycaemia requiring hospitalization.


Assuntos
Diabetes Mellitus Tipo 1 , Hipoglicemia , Humanos , Diabetes Mellitus Tipo 1/complicações , Hipoglicemiantes/uso terapêutico , Estudos Retrospectivos , Hipoglicemia/epidemiologia , Hospitalização
3.
Diabetologia ; 64(2): 275-287, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33313987

RESUMO

AIMS/HYPOTHESIS: Few studies examine the association between age at diagnosis and subsequent complications from type 2 diabetes. This paper aims to summarise the risk of mortality, macrovascular complications and microvascular complications associated with age at diagnosis of type 2 diabetes. METHODS: Data were sourced from MEDLINE and All EBM (Evidence Based Medicine) databases from inception to July 2018. Observational studies, investigating the effect of age at diabetes diagnosis on macrovascular and microvascular diabetes complications in adults with type 2 diabetes were selected according to pre-specified criteria. Two investigators independently extracted data and evaluated all studies. If data were not reported in a comparable format, data were obtained from authors, presented as minimally adjusted ORs (and 95% CIs) per 1 year increase in age at diabetes diagnosis, adjusted for current age for each outcome of interest. The study protocol was recorded with PROSPERO International Prospective Register of Systematic Reviews (CRD42016043593). RESULTS: Data from 26 observational studies comprising 1,325,493 individuals from 30 countries were included. Random-effects meta-analyses with inverse variance weighting were used to obtain the pooled ORs. Age at diabetes diagnosis was inversely associated with risk of all-cause mortality and macrovascular and microvascular disease (all p < 0.001). Each 1 year increase in age at diabetes diagnosis was associated with a 4%, 3% and 5% decreased risk of all-cause mortality, macrovascular disease and microvascular disease, respectively, adjusted for current age. The effects were consistent for the individual components of the composite outcomes (all p < 0.001). CONCLUSIONS/INTERPRETATION: Younger, rather than older, age at diabetes diagnosis was associated with higher risk of mortality and vascular disease. Early and sustained interventions to delay type 2 diabetes onset and improve blood glucose levels and cardiovascular risk profiles of those already diagnosed are essential to reduce morbidity and mortality. Graphical abstract.


Assuntos
Diabetes Mellitus Tipo 2/diagnóstico , Angiopatias Diabéticas/epidemiologia , Idade de Início , Transtornos Cerebrovasculares/epidemiologia , Transtornos Cerebrovasculares/etiologia , Doença das Coronárias/epidemiologia , Doença das Coronárias/etiologia , Diabetes Mellitus Tipo 2/complicações , Angiopatias Diabéticas/etiologia , Nefropatias Diabéticas/epidemiologia , Nefropatias Diabéticas/etiologia , Neuropatias Diabéticas/epidemiologia , Neuropatias Diabéticas/etiologia , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/etiologia , Humanos , Mortalidade , Razão de Chances , Doenças Vasculares Periféricas/epidemiologia , Doenças Vasculares Periféricas/etiologia
4.
Diabet Med ; 38(9): e14536, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33545742

RESUMO

AIMS: To understand factors associated with repeat non-attendance at screening for diabetes-related retinopathy. METHODS: Retrospective observational study using anonymised data from Diabetic Eye Screening Wales for people with a full history of screening invitations and attendances was linked with primary and secondary care records held in the Secure Anonymised Information Linkage Databank. Repeat non-attendance was defined as no record of attendance during any 36-month period despite three cycles of annual screening invitations. The associations between repeat non-attendance and potential risk factors were examined using multivariable logistic regression analysis, stratified according to type 1 and type 2 diabetes. RESULTS: A total of 18% with type 1 diabetes (1146/6513) and 8% with type 2 diabetes (12,475/156,525) were repeat non-attenders. Participants attending their very first appointment were least likely to become repeat non-attenders [odds ratio (95% confidence interval)]: type 1 diabetes: 0.12 (0.09, 0.17) and type 2 diabetes: 0.08 (0.07, 0.09). For both types of diabetes, those of a younger age, living in areas of higher deprivation and subject to multiple house moves were at greater risk of becoming repeat non-attenders. CONCLUSION/INTERPRETATION: A more tailored approach is needed for the younger population, those living in areas of higher deprivation and/or undergoing multiple residential relocation and to ensure attendance at their initial appointment to minimise future repeat non-attendance.


Assuntos
Serviços de Saúde Comunitária/organização & administração , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Retinopatia Diabética/epidemiologia , Medição de Risco/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Retinopatia Diabética/etiologia , Feminino , Seguimentos , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , País de Gales/epidemiologia , Adulto Jovem
5.
J Ultrasound Med ; 39(2): 385-395, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31378959

RESUMO

Canal of Nuck abnormalities are underrecognized causes of labial masses with potential adverse outcomes. The 2 main categories of canal of Nuck abnormalities are hernias and hydroceles. There are 3 types of canal of Nuck hydroceles: communicating, encysted, and bilocular. Canal of Nuck hernia contents vary, but those containing ovaries need urgent medical attention because of an increased risk of ischemia. Ultrasound can establish a definite diagnosis in all cases. This article reviews the embryologic characteristics, anatomy, pathologic characteristics, and imaging features of these abnormalities while providing a clear pictorial depiction of various unique hernias and hydroceles seen with this entity.


Assuntos
Cistos/diagnóstico por imagem , Hérnia Inguinal/diagnóstico por imagem , Canal Inguinal/anormalidades , Ultrassonografia/métodos , Diagnóstico Diferencial , Humanos , Canal Inguinal/embriologia
6.
Violence Vict ; 35(3): 382-399, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32606219

RESUMO

Research demonstrates a growing number of exploited and trafficked children in the United States, but few studies address how practitioners continue to respond to these issues. Multiple efforts identify victims of human trafficking and provide services since the passing of the Trafficking Victims Protection Act (TVPA) in 2000 and its reauthorization. However, the TVPA oftentimes failed to protect the most vulnerable. This qualitative study included four focus group sessions with 28 practitioners from various disciplines (e.g., social work, healthcare, legal) to examine how the state of Connecticut has expanded services and programs for children and youth trafficking victims. The findings describe current statewide partnerships along with challenges and successes when working with child victims of human trafficking, offering practice and policy recommendations.


Assuntos
Proteção da Criança , Pessoal de Saúde , Tráfico de Pessoas , Populações Vulneráveis , Adolescente , Criança , Serviços de Saúde Comunitária , Connecticut , Feminino , Humanos , Masculino
7.
Clin Exp Ophthalmol ; 47(8): 1055-1062, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31254428

RESUMO

BACKGROUND: Previously developed in vitro cultures of the human retina have been solo or dual cell cultures. We developed a triple-cell culture in vitro model utilizing a membrane system to produce a better representation of a functional and morphological human retina. METHODS: Retinal microvascular endothelial cells (HRMVEC/ACBRI181, cell systems), retinal pigment epithelium cells (RPE/ARPE-19, ATCC) and Müller glial cells (Moorfield Institute of Ophthalmology-Müller 1, UCL) were grown in a triple culture. Our optimized triple-culture media contained a mix of specific endothelial medium and high glucose Dulbecco's Modified Eagle's medium, where all three layers were viable for up to 5 days. Co-culture effect on morphological changes (cell staining) and gene expression of functional genes (pigment epithelium derived factor [PEDF] and vascular endothelial growth factor [VEGF]) were measured from RNA via real-time polymerase chain reaction. Expression of tight junction protein 1 (TJP1) was measured in RNA isolated from ARPE-19s, to assess barrier stability. RESULTS: The triple-culture promotes certain cell functionality through up-regulation of TJP1, increasing PEDF and decreasing VEGF expression highlighting its importance for the assessment of disease mechanisms distinct from a solo culture which would not allow the true effect of the native microenvironment to be elucidated. CONCLUSIONS: This model's novelty and reliability allows for the assessment of singular cellular function within the retinal microenvironment and overall assessment of retinal health, while eliminating the requirement of animal-based models.


Assuntos
Endotélio Vascular/citologia , Células Ependimogliais/citologia , Epitélio Pigmentado da Retina/citologia , Vasos Retinianos/citologia , Técnicas de Cultura de Células , Linhagem Celular , Técnicas de Cocultura , Meios de Cultura , Endotélio Vascular/metabolismo , Células Ependimogliais/metabolismo , Proteínas do Olho/genética , Regulação da Expressão Gênica/fisiologia , Humanos , Fatores de Crescimento Neural/genética , Reação em Cadeia da Polimerase em Tempo Real , Epitélio Pigmentado da Retina/metabolismo , Serpinas/genética , Fator A de Crescimento do Endotélio Vascular/genética , Proteína da Zônula de Oclusão-1/genética
8.
Clin Chem ; 61(3): 505-13, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25605684

RESUMO

BACKGROUND: LC-MS/MS with multiple reaction monitoring (MRM) is a powerful tool for quantifying target analytes in complex matrices. However, the technique lacks selectivity when plasma free metanephrines are measured. We propose the use of multistage fragmentation (MRM(3)) to improve the analytical selectivity of plasma free metanephrine measurement. METHODS: Metanephrines were extracted from plasma with weak cation exchange solid-phase extraction before separation by hydrophilic interaction liquid chromatography. We quantified normetanephrine and metanephrine by either MRM or MRM(3) transitions m/z 166→134→79 and m/z 180→149→121, respectively. RESULTS: Over a 6-month period, approximately 1% (n = 21) of patient samples showed uncharacterized coeluting substances that interfered with the routine assay, resulting in an inability to report results. Quantification with MRM(3) removed these interferences and enabled measurement of the target compounds. For patient samples unaffected by interferences, Deming regression analysis demonstrated a correlation between MRM(3) and MRM methods of y = 1.00x - 0.00 nmol/L for normetanephrine and y = 0.99x + 0.03 nmol/L for metanephrine. Between the MRM(3) method and the median of all LC-MS/MS laboratories enrolled in a quality assurance program, the correlations were y = 0.97x + 0.03 nmol/L for normetanephrine and y = 1.03x - 0.04 nmol/L for metanephrine. Imprecision for the MRM(3) method was 6.2%-7.0% for normetanephrine and 6.1%-9.9% for metanephrine (n = 10). The lower limits of quantification for the MRM(3) method were 0.20 nmol/L for normetanephrine and 0.16 nmol/L for metanephrine. CONCLUSIONS: The use of MRM(3) technology improves the analytical selectivity of plasma free metanephrine quantification by LC-MS/MS while demonstrating sufficient analytical sensitivity and imprecision.


Assuntos
Cromatografia Líquida/métodos , Metanefrina/sangue , Espectrometria de Massas em Tandem/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Artefatos , Feminino , Humanos , Limite de Detecção , Masculino , Pessoa de Meia-Idade
9.
Urban Ecosyst ; 18(2): 465-475, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26190913

RESUMO

Supplementary feeding of wild birds by domestic garden-holders is a globally widespread and popular form of human-wildlife interaction, particularly in urban areas. Vast amounts of energy are thus being added to garden ecosystems. However, the potential indirect effects of this activity on non-avian species have been little studied to date, with the only two previous studies taking place under experimentally manipulated conditions. Here we present the first evidence of a localised depletive effect of wild bird feeding on ground beetles (Coleoptera: Carabidae) in suburban gardens under the usual feeding patterns of the garden-holders. We trapped significantly fewer ground beetles directly under bird-feeding stations than in matched areas of habitat away from feeders. Video analysis also revealed significantly higher activity by ground-foraging birds under the feeding stations than in the control areas. Small mammal trapping revealed no evidence that these species differ in abundance between gardens with and without bird feeders. We therefore suggest that local increases in ground-foraging activity by bird species whose diets encompass arthropods as well as seed material are responsible for the reduction in ground beetle numbers. Our work therefore illustrates that providing food for wild birds can have indirect negative effects on palatable prey species under typical conditions.

10.
Insects ; 15(5)2024 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-38786903

RESUMO

Few studies have considered whether hidden (asymptomatic) plant pathogen infection alters ecological interactions at the higher trophic levels, even though such infection still affects plant physiology. We explored this question in two field experiments, where two varieties of lettuce (Little Gem, Tom Thumb) infected with Botrytis cinerea were either (1) naturally colonised by aphids or (2) placed in the field with an established aphid colony. We then recorded plant traits and the numbers and species of aphids, their predators, parasitoids and hyperparasitoids. Infection significantly affected plant quality. In the first experiment, symptomatically infected plants had the fewest aphids and natural enemies of aphids. The diversity and abundance of aphids did not differ between asymptomatically infected and uninfected Little Gem plants, but infection affected the aphid assemblage for Tom Thumb plants. Aphids on asymptomatically infected plants were less attractive to predators and parasitoids than those on uninfected plants, while hyperparasitoids were not affected. In the second experiment, when we excluded natural enemies, aphid numbers were lower on asymptomatically and symptomatically infected plants, but when aphid natural enemies were present, this difference was removed, most likely because aphids on uninfected plants attracted more insect natural enemies. This suggests that hidden pathogen infection may have important consequences for multitrophic interactions.

11.
Clin Nutr ; 42(3): 337-351, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36736057

RESUMO

BACKGROUND & AIMS: Alterations in the hormonal profiles as women transition to the menopause predisposes individuals to the metabolic syndrome (MetS). In post-menopausal women, this can be exacerbated by sedentary behaviour and physical inactivity. Physical activity can convey many health benefits including improvement in MetS risk factors. However, it remains to be elucidated how differing exercise intensities and its mode of delivery can ameliorate MetS risk factors and resultant progression amongst post-menopausal women. The purpose of this systematic review and meta-analysis was to investigate the effects and efficacy of exercise training on MetS risk factors in post-menopausal women. METHODS: Database searches using PubMed, Scopus, Web of Science and the Cochrane Central Register of Controlled Trials were conducted from inception to December 2021 for randomised controlled studies (RCTs) investigating exercise training (>8 weeks) in at least one of the MetS risk factors in post-menopausal women. Utilising the random-effects model, appropriate standardised mean differences (SMD) or mean differences (MD) with 95% confidence interval (CI) for each MetS risk factor were used to calculate the overall effect size between the exercise and control groups. Sub-group analyses were performed for exercise intensity, modality, and duration for each risk factor. Meta-regression was performed for categorical (health status) and continuous (body mass index) covariates. RESULTS: 39 RCTs (40 studies) involving 2132 participants were identified as eligible. Overall, the meta-analysis shows that exercise training significantly improved all MetS risk factors: waist circumference (WC) [MD: -2.61 cm; 95% CI: -3.39 to -1.86 cm; p < 0.001; 21 studies]; triglycerides (TG) [SMD: -0.40 mmol/L; 95% CI: -0.71 to -0.09 mmol/L; p = 0.01; 25 studies]; high-density lipoprotein (HDL) [SMD: 0.84 mmol/L (95% CI: 0.41-1.27 mmol/L; p < 0.001; 26 studies]; fasting glucose (BG) [SMD: -0.38 mmol/L (95% CI: -0.60 to -0.16 mmol/L; p < 0.001; 20 studies]; systolic blood pressure (SBP) [MD: -5.95 mmHg (95% CI: -7.98 to -3.92 mmHg; p < 0.001; 23 studies]; and diastolic blood pressure (DBP) [MD: -4.14 mmHg (95% CI: -6.19 to -2.08 mmHg; p < 0.001; 23 studies]. Furthermore, sub-group analyses identified that moderate intensity and combined exercise training significantly improved MetS risk factors (p < 0.05) except for HDL, with combined exercise being the most effective. Long duration (≥12 weeks) training also significantly improved MetS risk factors except for TG. Meta-regression revealed no moderating effects on any MetS risk variables. CONCLUSION: This study reinforces the importance of regular physical activity as a non-pharmacological tool in the reduction of MetS risk in post-menopausal women, with significant metabolic improvements seen in interventions spanning 8-10 weeks. Moderate intensity and combined training significantly benefitted abdominal obesity, dyslipidaemia, dysglycaemia and hypertension in post-menopausal women. Improvements in at least one MetS risk were also seen with other exercise modalities and intensities.


Assuntos
Síndrome Metabólica , Feminino , Humanos , Síndrome Metabólica/prevenção & controle , Pós-Menopausa , Exercício Físico , Fatores de Risco , Obesidade , Triglicerídeos , Ensaios Clínicos Controlados Aleatórios como Assunto
12.
J Diabetes Sci Technol ; 17(2): 353-363, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-34719972

RESUMO

BACKGROUND: Patient education is a fundamental aspect of self-management of diabetes. The aim of this study was to understand whether a social media platform is a viable method to deliver education to people with diabetes and understand if people would engage and interact with it. METHODS: Education sessions were provided via 3 platforms in a variety of formats. "Tweetorials" and quizzes were delivered on the diabetes101 Twitter account, a virtual conference via Zoom and video presentations uploaded to YouTube. Audience engagement during and after the sessions were analyzed using social media metrics including impressions and engagement rate using Twitter analytics, Tweepsmap, and YouTube Studio. RESULTS: A total of 22 "tweetorial" sessions and 5 quizzes with a total of 151 polls (both in tweetorial and quiz sessions) receiving a total of 21,269 votes took place. Overall, the 1-h tweetorial sessions gained 1,821,088 impressions with an engagement rate of 6.3%. The sessions received a total of 2,341 retweets, 2,467 replies and 10,060 likes. The quiz days included 113 polls receiving 16,069 votes. The conference covered 8 topics and was attended live by over 100 people on the day. The video presentations on YouTube have received a total of 2,916 views with a watch time of 281 h and 8,847 impressions. CONCLUSION: Despite the limitations of social media, it can be harnessed to provide relevant reliable information and education about diabetes allowing people the time and space to learn at their own pace.


Assuntos
Diabetes Mellitus , Mídias Sociais , Humanos , Pandemias , Diabetes Mellitus/terapia
13.
J Clin Med ; 11(10)2022 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-35628812

RESUMO

BACKGROUND: Coronary heart disease (CHD) is the leading cause of death worldwide, constituting a growing health and social burden. People with cardiometabolic disorders are more likely to develop CHD. Retinal image analysis is a novel and noninvasive method to assess microvascular function. We aim to investigate whether retinal images can be used for CHD risk estimation for people with cardiometabolic disorders. METHODS: We have conducted a case-control study at Shenzhen Traditional Chinese Medicine Hospital, where 188 CHD patients and 128 controls with cardiometabolic disorders were recruited. Retinal images were captured within two weeks of admission. The retinal characteristics were estimated by the automatic retinal imaging analysis (ARIA) algorithm. Risk estimation models were established for CHD patients using machine learning approaches. We divided CHD patients into a diabetes group and a non-diabetes group for sensitivity analysis. A ten-fold cross-validation method was used to validate the results. RESULTS: The sensitivity and specificity were 81.3% and 88.3%, respectively, with an accuracy of 85.4% for CHD risk estimation. The risk estimation model for CHD with diabetes performed better than the model for CHD without diabetes. CONCLUSIONS: The ARIA algorithm can be used as a risk assessment tool for CHD for people with cardiometabolic disorders.

14.
J Diabetes Complications ; 36(1): 108028, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34507878

RESUMO

AIMS: Identifying and modulating risk factors is essential to prevent visual impairment due to diabetic retinopathy (DR). This study examines incident DR with metabolic and hormonal factors in newly-diagnosed, treatment naïve, individuals with Type2 Diabetes Mellitus (T2DM), over a 5 year period from diagnosis. METHODS: 233 T2DM subjects underwent serial DR screening using digital photography and standardised Meal Tolerance Tests at diagnosis and after 1, 2 and 5 years. Subjects (179) with no DR throughout the 5-year study period were compared with those who developed DR (54). RESULTS: Of 233 subjects, 54(23.2%) developed DR by 5 years, background DR in 50(93%) and exudative maculopathy in 4(7%) individuals. Of these subjects, 12(22%) developed DR after 1 year, 15(28%) after 2 years and 27(50%) after 5 years. At baseline, those with DR at 5 years had higher HbA1c (p = 0.017), higher fasting plasma glucose (PG) (p = 0.031) and postprandial PG (p = 0.009). They were associated with reduced basal ß-cell secretory function (M0) (p = 0.025), lower (p = 0.000) postprandial ß-cell responsiveness (M1) and ß-cell function (HOMA-B) (p = 0.044). CONCLUSIONS: There is an independent association between glycaemic control and ß-cell dysfunction at the time of diagnosis of T2DM, with incident DR over a follow-up period of 5 years.


Assuntos
Diabetes Mellitus Tipo 2 , Retinopatia Diabética , Células Secretoras de Insulina , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/etiologia , Hemoglobinas Glicadas/metabolismo , Humanos , Incidência , Células Secretoras de Insulina/metabolismo , Fatores de Risco
15.
Ecol Evol ; 12(3): e8709, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35342614

RESUMO

Urbanization is an important driver of the diversity and abundance of tree-associated insect herbivores, but its consequences for insect herbivory are poorly understood. A likely source of variability among studies is the insufficient consideration of intra-urban variability in forest cover. With the help of citizen scientists, we investigated the independent and interactive effects of local canopy cover and percentage of impervious surface on insect herbivory in the pedunculate oak (Quercus robur L.) throughout most of its geographic range in Europe. We found that the damage caused by chewing insect herbivores as well as the incidence of leaf-mining and gall-inducing herbivores consistently decreased with increasing impervious surface around focal oaks. Herbivory by chewing herbivores increased with increasing forest cover, regardless of impervious surface. In contrast, an increase in local canopy cover buffered the negative effect of impervious surface on leaf miners and strengthened its effect on gall inducers. These results show that-just like in non-urban areas-plant-herbivore interactions in cities are structured by a complex set of interacting factors. This highlights that local habitat characteristics within cities have the potential to attenuate or modify the effect of impervious surfaces on biotic interactions.

16.
Eye (Lond) ; 35(10): 2840-2847, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33262478

RESUMO

OBJECTIVE: To determine the risk factors for having diabetic retinopathy (DR) in children and young people (CYP) with type 1 diabetes (T1DM) at first screening. METHODS: Records from the Diabetes Eye Screening Wales (DESW) service for people in Wales, UK, with T1DM diagnosed under age 18 years were combined with other electronic health record (EHR) data in the Secure Anonymised Information Linkage (SAIL) Databank. Data close to the screening date were collected, and risk factors derived from multivariate, multinomial logistic regression modelling. RESULTS: Data from 4172 persons, with median (lower quartile, upper quartile) age 16.3 (13.0, 22.3) years and duration of diabetes 6.6 (2.3, 12.3) years were analysed. 62.6% (n = 2613) had no DR, 26.7% (n = 1112) background DR, and 10.7% (n = 447) had referable DR (RDR). No RDR was observed under 19 years of age. Factors associated with an increased risk of DR were diabetes duration, elevated HbA1c, and diastolic blood pressure. People diagnosed with T1DM at 12 years or older had an additional risk for each year they had diabetes compared to those diagnosed before age 12 controlling for the diabetes duration (odds ratios 1.23 and 1.34, respectively). CONCLUSIONS: This study found that 37.4% of the study cohort had DR at first screening, the risk being greater the longer the duration of diabetes or higher the HbA1c and diastolic blood pressure. In addition, people diagnosed at 12 years of age or over were more likely to have DR with each additional year with diabetes.


Assuntos
Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Retinopatia Diabética , Adolescente , Criança , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/diagnóstico , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/epidemiologia , Retinopatia Diabética/diagnóstico , Retinopatia Diabética/epidemiologia , Retinopatia Diabética/etiologia , Humanos , Programas de Rastreamento , Prevalência , Fatores de Risco
17.
Int J Popul Data Sci ; 6(1): 1387, 2021 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-34007896

RESUMO

INTRODUCTION: Studies of prevalence and the demographic profile of type 1 diabetes are challenging because of the relative rarity of the condition, however, these outcomes can be determined using routine healthcare data repositories. Understanding the epidemiology of type 1 diabetes allows for targeted interventions and care of this life-affecting condition. OBJECTIVES: To describe the prevalence, incidence and demographics of persons with type 1 diabetes diagnosed in Wales, UK, using the Secure Anonymised Information Linkage (SAIL) Databank. METHODS: Data derived from primary and secondary care throughout Wales available in the SAIL Databank were used to identify people with type 1 diabetes to determine the prevalence and incidence of type 1 diabetes over a 10 year period (2008-18) and describe the demographic and clinical characteristics of this population by age, socioeconomic deprivation and settlement type. The seasonal variation in incidence rates was also examined. RESULTS: The prevalence of type 1 diabetes in 2018 was 0.32% in the whole population, being greater in men compared to women (0.35% vs 0.28% respectively); highest in those aged 15-29 years (0.52%) and living in the most socioeconomically deprived areas (0.38%). The incidence of type 1 diabetes over 10 years was 14.0 cases/100,000 people/year for the whole population of Wales. It was highest in children aged 0-14 years (33.6 cases/100,000 people/year) and areas of high socioeconomic deprivation (16.8 cases/100,000 people/year) and least in those aged 45-60 years (6.5 cases/100,000 people/year) and in areas of low socioeconomic deprivation (11.63 cases/100,000 people/year). A seasonal trend in the diagnoses of type 1 diabetes was observed with higher incidence in winter months. CONCLUSION: This nation-wide retrospective epidemiological study using routine data revealed that the incidence of type 1 diabetes in Wales was greatest in those aged 0-14 years with a higher incidence and prevalence in the most deprived areas. These findings illustrate the need for health-related policies targeted at high deprivation areas to include type 1 diabetes in their remit.


Assuntos
Diabetes Mellitus Tipo 1 , Adolescente , Adulto , Criança , Pré-Escolar , Bases de Dados Factuais , Diabetes Mellitus Tipo 1/epidemiologia , Feminino , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , País de Gales/epidemiologia , Adulto Jovem
18.
SAGE Open Med ; 8: 2050312120946244, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32782799

RESUMO

OBJECTIVES: Peripheral artery disease is a major cardiovascular disease affecting more than 200 million people globally and up to 4 times more frequent in the diabetic population. It can lead to lower extremity amputations or revascularisation and is associated with an increased risk of myocardial infarction, stroke and early mortality. This novel cross-sectional study aimed to explore the feasibility and acceptability of incorporating diabetic foot screening at routine diabetic retinopathy screening appointments. METHODS: Participants underwent foot screening during the interval between pupil dilatation and retinal photography as part of the eye screening procedure. Lower limb arterial assessment included ankle brachial index, pulse volume waveform and protective light touch sensation. RESULTS: Of 364 participants invited, 88% (n = 321) met the inclusion criteria. About 26.4% (n = 86) had asymptomatic peripheral artery disease and 3% (n = 10) had peripheral sensory neuropathy. Binary logistical regression analysis identified age (p < 0.005), existing coronary heart disease (p < 0.005) and gender (p = 0.03) as predictors of peripheral artery disease. CONCLUSION: Incorporating foot examination during eye screening appointments is feasible and was well received by participants and staff alike. Undiagnosed early peripheral artery disease was evident in a third of the study population emphasising the benefit of introducing foot surveillance into eye screening appointments for the early identification of lower limb arterial disease and peripheral sensory neuropathy.

19.
Eur J Health Econ ; 21(7): 993-1002, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32385543

RESUMO

OBJECTIVE: Examine the health and economic impact of extending screening intervals in people with Type 2 diabetes (T2DM) and Type 1 diabetes (T1DM) without diabetes-related retinopathy (DR). SETTING: Diabetic Eye Screening Wales (DESW). STUDY DESIGN: Retrospective observational study with cost-utility analysis (CUA) and Decremental Cost-Effectiveness Ratios (DCER) study. INTERVENTION: Biennial screening versus usual care (annual screening). INPUTS: Anonymised data from DESW were linked to primary care data for people with two prior screening events with no DR. Transition probabilities for progression to DR were estimated based on a subset of 26,812 and 1232 people with T2DM and T1DM, respectively. DCER above £20,000 per QALY was considered cost-effective. RESULTS: The base case analysis DCER results of £71,243 and £23,446 per QALY for T2DM and T1DM respectively at a 3.5% discount rate and £56,822 and £14,221 respectively when discounted at 1.5%. Diabetes management represented by the mean HbA1c was 7.5% for those with T2DM and 8.7% for T1DM. SENSITIVITY ANALYSIS: Extending screening to biennial based on HbA1c, being the strongest predictor of progression of DR, at three levels of HbA1c 6.5%, 8.0% and 9.5% lost one QALY saving the NHS £106,075; £58,653 and £31,626 respectively for T2DM and £94,696, £37,646 and £11,089 respectively for T1DM. In addition, extending screening to biennial based on the duration of diabetes > 6 years for T2DM per QALY lost, saving the NHS £54,106 and for 6-12 and > 12 years for T1DM saving £83,856, £23,446 and £13,340 respectively. CONCLUSIONS: Base case and sensitivity analyses indicate biennial screening to be cost-effective for T2DM irrespective of HbA1c and duration of diabetes. However, the uncertainty around the DCER indicates that annual screening should be maintained for those with T1DM especially when the HbA1c exceeds 80 mmol/mol (9.5%) and duration of diabetes is greater than 12 years.


Assuntos
Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Retinopatia Diabética/diagnóstico , Programas de Rastreamento/economia , Adulto , Idoso , Análise Custo-Benefício , Feminino , Hemoglobinas Glicadas , Gastos em Saúde/estatística & dados numéricos , Recursos em Saúde/economia , Humanos , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Modelos Econométricos , Anos de Vida Ajustados por Qualidade de Vida , Estudos Retrospectivos , Fatores de Risco , Serviço Social/economia , Fatores de Tempo
20.
Animals (Basel) ; 10(6)2020 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-32630423

RESUMO

The European mole Talpa europaea is common across much of Britain. It has a unique fossorial lifestyle, and evidence of its presence is readily identified through the presence of characteristic molehills. Although molehills are often a common sight in urban greenspaces, moles are remarkably understudied, with very few studies to date exploring the urban ecology of moles. Here, we investigate if factors such as greenspace (largely urban parks and playing fields) area, intensity of management, distance to nearest patch, amount of time the patch had been isolated from other green patches, and the amount of urbanization (constructed surfaces) surrounding the patch, influence the distribution and abundance of urban moles. Mole signs (hills and surface runs) were counted in all discrete urban greenspaces (excluding domestic gardens and one private golf course) within an 89.5 km2 area in the UK town of Reading. We found that 17 out of 59 surveyed sites contained moles, with their presence being recorded in greenspaces with a minimum patch area of approximately 0.1 km2 (10 ha). Where present, the abundance of mole territories in the greenspaces was associated with both the area of greenspace and degree of urbanization within 150 m of the patch boundary. While the former was not surprising, the latter outcome may be a consequence of sites with an increased risk of flooding being home to fewer moles, and the surrounding area is also less likely to be built upon. This case study highlights how choices made in designing urban green infrastructure will determine which species survive in urban areas long into the future.

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