Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 43
Filtrar
1.
Artigo em Inglês | MEDLINE | ID: mdl-38873122

RESUMO

The purpose of this report is to describe the community engagement research (CEnR) strategies used to implement the Florida Statewide Registry for Aging Studies (FSRAS), a tri-institutional research project conducted during the height of the COVID-19 pandemic. We describe the CEnR strategies used to enroll adults aged ≥ 25 years old self-identifying as African American (AA), Caribbean (CN), or Hispanic/Latinx (H/L) into FSRAS health research studies. The second goal is to report the number of AA, CN, and H/L adults involved in FSRAS and discuss the implications of CEnR strategies used throughout this research. More than 1600 adults aged 25 years or older participated in FSRAS health-related research activities or studies. Specifically, 25 community leaders from throughout Florida served on the FL-SAGE Council, 587 AA, CN, and H/L adults aged ≥ 25 years old participated in listening sessions and completed surveys exploring intergenerational influence, 292 AA, CN, and H/L adults participated in marketing research, and at least 702 adults have enrolled in AgeWell, FSRAS's health registry for persons interested in healthy aging research. Implications are researchers should continue using several CEnR strategies including technology and social media. Examining how the foundational principles of trust and authenticity are maintained when using CEnR strategies in virtual settings is warranted. Research implications are that simultaneously using CEnR strategies to recruit and enroll underrepresented populations into research is most effective although further research is needed to identify which CEnR strategy is most effective for enrolling AA, CN, and H/L older adults in aging research.

2.
Res Aging ; 46(7-8): 414-425, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38361310

RESUMO

Introduction: Identifying effective strategies to enroll African American, Caribbean, and Hispanic/Latino adults ≥65 years of age in health research is a public health priority. This study aimed to explore intergenerational influence (IGI) among these populations living throughout Florida. Methods: African American, Caribbean, and Hispanic/Latino adults ≥65 years of age and a trusted family member/friend between 25-64 years participated in virtual listening sessions (LS). Culturally matched facilitators used a semi-structured guide to lead LS that was recorded, transcribed, and uploaded into NVivo©. The constant comparative method was used for analysis. Results: 363 African American, Caribbean, and Hispanic/Latino participated in LS. Five (5) themes relate to IGI emerged: (1) parent-child relationships; (2) family caregiving/parental illness experiences; (3) historical research maltreatment; (4) transfer of cultural knowledge; and (5) future generations. Discussion: Our findings support that IGI can be leveraged to increase the participation of African American, Caribbean, and Hispanic/Latino older adults in health research.


Assuntos
Negro ou Afro-Americano , Hispânico ou Latino , Relação entre Gerações , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pesquisa Biomédica , Negro ou Afro-Americano/psicologia , Tomada de Decisões , Florida , Hispânico ou Latino/psicologia , Relação entre Gerações/etnologia , Relações Pais-Filho/etnologia , População do Caribe/psicologia
3.
Gerontol Geriatr Med ; 9: 23337214231179826, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37324645

RESUMO

This survey study aimed to assess the willingness of culturally diverse older adults to participate in COVID-19 research. The majority of the 276 participants were women (81%, n = 223) and Black/African American (62%, n = 172) or White Hispanic (20%, n = 56). A key finding from the survey was less than 1 of 10 respondents would be likely to participate in COVID-19 related research if given the opportunity. There were no differences observed by gender, race or ethnicity. Implications of these findings are considered. These study findings indicate continued effort and better messaging strategies are required to increase awareness that COVID-19 related research needs to include culturally diverse older adults to ensure vaccines and treatments are efficacious in different populations.

4.
Ethn Dis ; 32(3): 203-212, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35909644

RESUMO

Background: Diabetes and prediabetes are common among African Americans (AA), but the frequency and predictors of transition between normal, impaired glucose metabolism, and diabetes are not well-described. The aim of this study was to examine glucometabolic transitions and their association with the development of type 2 diabetes (T2D). Methods: AA participants of the Jackson Heart Study who attended baseline exam (2000-2004) and at least one of two subsequent exams (2005-2008 and 2009-2013, ~8 years) were classified according to glycemic status. Transitions were defined as progression (deterioration) or remission (improvement) of glycemic status. Multinomial logistic regression models with repeated measures were used to estimate the odds ratios (OR) for remission and progression with adjustment for demographic, anthropometric, behavioral, and biochemical factors. Results: Among 3353 participants, (mean age 54.6±12.3 years), 43% were normoglycemic, 32% were prediabetes, and 25% had diabetes at baseline. For those with normal glucose at a visit, the probability at the next visit (~4years) of having prediabetes or diabetes was 38.5% and 1.8%, respectively. For those with prediabetes, the probability was 9.9% to improve to normal and 19.9% to progress to diabetes. Progression was associated with baseline BMI, diabetes status, triglycerides, family history of diabetes, and weight gain (OR 1.04 kg, 95% CI:1.03-1.06, P=<.0001). Remission was strongly associated with weight loss (OR .97 kg, 95%CI: .95-.98, P<.001). Conclusions: In AAs, glucometabolic transitions were frequent and most involved deterioration. From a public health perspective additional emphasis should be placed on weight control to preserve glucometabolic status and prevent progression to T2D.


Assuntos
Diabetes Mellitus Tipo 2 , Estado Pré-Diabético , Adulto , Negro ou Afro-Americano , Idoso , Glicemia/metabolismo , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Estado Pré-Diabético/complicações , Estado Pré-Diabético/epidemiologia
5.
Am J Lifestyle Med ; 16(3): 342-362, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35706589

RESUMO

Objective: The objective of this Expert Consensus Statement is to assist clinicians in achieving remission of type 2 diabetes (T2D) in adults using diet as a primary intervention. Evidence-informed statements agreed upon by a multi-disciplinary panel of expert healthcare professionals were used. Methods: Panel members with expertise in diabetes treatment, research, and remission followed an established methodology for developing consensus statements using a modified Delphi process. A search strategist systematically reviewed the literature, and the best available evidence was used to compose statements regarding dietary interventions in adults 18 years and older diagnosed with T2D. Topics with significant practice variation and those that would result in remission of T2D were prioritized. Using an iterative, online process, panel members expressed levels of agreement with the statements, resulting in classification as consensus, near-consensus, or non-consensus based on mean responses and the number of outliers. Results: The expert panel identified 131 candidate consensus statements that focused on addressing the following high-yield topics: (1) definitions and basic concepts; (2) diet and remission of T2D; (3) dietary specifics and types of diets; (4) adjuvant and alternative interventions; (5) support, monitoring, and adherence to therapy; (6) weight loss; and (7) payment and policy. After 4 iterations of the Delphi survey and removal of duplicative statements, 69 statements met the criteria for consensus, 5 were designated as near consensus, and 60 were designated as no consensus. In addition, the consensus was reached on the following key issues: (a) Remission of T2D should be defined as HbA1c <6.5% for at least 3 months with no surgery, devices, or active pharmacologic therapy for the specific purpose of lowering blood glucose; (b) diet as a primary intervention for T2D can achieve remission in many adults with T2D and is related to the intensity of the intervention; and (c) diet as a primary intervention for T2D is most effective in achieving remission when emphasizing whole, plant-based foods with minimal consumption of meat and other animal products. Many additional statements that achieved consensus are highlighted in a tabular presentation in the manuscript and elaborated upon in the discussion section. Conclusion: Expert consensus was achieved for 69 statements pertaining to diet and remission of T2D, dietary specifics and types of diets, adjuvant and alternative interventions, support, monitoring, adherence to therapy, weight loss, and payment and policy. Clinicians can use these statements to improve quality of care, inform policy and protocols, and identify areas of uncertainty.

6.
Artigo em Inglês | MEDLINE | ID: mdl-34360312

RESUMO

Type 2 Diabetes mellitus (DM2) affects 9.3% of the U.S. population. Health disparities are evident in DM2; twice as many Hispanics as non-Hispanic Whites have DM2. The objective of this study was to pilot test the feasibility of implementing and evaluating trends of nutrition and exercise interventions to improve diabetes management and physical function in 29 disadvantaged older Hispanics with DM2. We delivered combined diet and exercise (n = 8) and diet-only (n = 6) interventions and compared the results to a control/no intervention group (n = 15). We cluster-randomized the participants into the three arms based on the senior center they attended. The interventions were delivered twice a week for 3 months (24 sessions) and assessments were conducted pre and post intervention. The results indicate the feasibility of implementing the interventions and slight improvements in both intervention groups compared to the control group. The diet-only group tended to have larger improvements on body composition measures (especially in muscle mass), while the diet + exercise group tended to have larger improvements on physical function (especially in chair stands). There was a high rate of attrition, especially in the diet + exercise group, but those who completed the intervention tended to have improvements in body composition and physical function.


Assuntos
Diabetes Mellitus Tipo 2 , Idoso , Composição Corporal , Diabetes Mellitus Tipo 2/terapia , Dieta , Exercício Físico , Humanos , Projetos Piloto
7.
Front Public Health ; 9: 769731, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35004581

RESUMO

Background: Health disparities disproportionally affect Black and Hispanic older US adults. Health research is needed to understand and eliminate these disparities; however, older adults, and particularly Black and Hispanic/Latino older adults are underrepresented in health research. Adult children have influenced health behavior and health outcomes of their older parents in several demographics in the US. Analysis of these studies can lead to a model for the development of interventions aimed at improving health and healthcare participation of older Black and Hispanic US adults. Objectives: To review the role of intergenerational communication and social support in health behavior, health research, and health outcomes for older adults and to apply these findings toward a model for health interventions for Black and Hispanic US older adults. Methods: An analytical narrative review and application toward an intervention model. Results: Key topic areas were reviewed and analyzed by examining studies that applied forms of intergenerational communication and/or intergenerational social support with the goal of either improving health, disease management and/or participation in health research in populations world-wide. Next, a model for providing health interventions in older Black and Hispanic US adults was developed using strategies gleaned from the findings. Conclusion: A model for health intervention for Black and Hispanic/Latino US older adults was presented based on an analytical review and intergenerational communication and/or social support. Qualitative data are necessary to understand the enablers and barriers of intergenerational communication and social support to improve health outcomes in these populations.


Assuntos
Hispânico ou Latino , Pobreza , Adulto , Idoso , Humanos , Pessoa de Meia-Idade , Doença Crônica , Comunicação , Apoio Social , Estados Unidos
8.
J Natl Black Nurses Assoc ; 31(2): 32-38, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33617705

RESUMO

A Black woman has an 85.7% chance of developing hypertension in her lifetime, yet she is less likely to be optimally treated. The purpose of this research report is to describe the factors associated with self-reported hypertension in a sample of Black women. A descriptive study was conducted using a researcher-developed survey. Responses were obtained from 201 adult Black women from 19 to 92 years of age. Descriptive and comparative analyses were performed. The frequency of self-reported hypertension in the sample was low (n = 54, 27%). The self-report hypertension group was significantly older (p < 0.05) and obese (61%). There were significant associations between self-report hypertension and greater income (c2 = 9.24, p = 0.002, f = 0.232), self-report hypertension and higher education (c2 = 5.66, p = 0.017, phi = 0.182), and self-report hypertension and not having Medicaid (c2 = 5.05, p = 0.025, f = 0.174). APRNs should stress the importance of routine health screenings and healthy lifestyle behaviors in accordance with patient needs.


Assuntos
Negro ou Afro-Americano , Hipertensão , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Hipertensão/etnologia , Pessoa de Meia-Idade , Autorrelato , Fatores Socioeconômicos , Estados Unidos
9.
Hypertension ; 73(5): e35-e66, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30827125

RESUMO

The accurate measurement of blood pressure (BP) is essential for the diagnosis and management of hypertension. This article provides an updated American Heart Association scientific statement on BP measurement in humans. In the office setting, many oscillometric devices have been validated that allow accurate BP measurement while reducing human errors associated with the auscultatory approach. Fully automated oscillometric devices capable of taking multiple readings even without an observer being present may provide a more accurate measurement of BP than auscultation. Studies have shown substantial differences in BP when measured outside versus in the office setting. Ambulatory BP monitoring is considered the reference standard for out-of-office BP assessment, with home BP monitoring being an alternative when ambulatory BP monitoring is not available or tolerated. Compared with their counterparts with sustained normotension (ie, nonhypertensive BP levels in and outside the office setting), it is unclear whether adults with white-coat hypertension (ie, hypertensive BP levels in the office but not outside the office) have increased cardiovascular disease risk, whereas those with masked hypertension (ie, hypertensive BP levels outside the office but not in the office) are at substantially increased risk. In addition, high nighttime BP on ambulatory BP monitoring is associated with increased cardiovascular disease risk. Both oscillometric and auscultatory methods are considered acceptable for measuring BP in children and adolescents. Regardless of the method used to measure BP, initial and ongoing training of technicians and healthcare providers and the use of validated and calibrated devices are critical for obtaining accurate BP measurements.


Assuntos
American Heart Association , Determinação da Pressão Arterial/métodos , Pressão Sanguínea/fisiologia , Consenso , Gerenciamento Clínico , Hipertensão/diagnóstico , Humanos , Hipertensão/fisiopatologia , Estados Unidos
10.
Endocrine ; 63(2): 391-397, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30402674

RESUMO

PURPOSE: Current reference methods for measuring glucose effectiveness (GE) are the somatostatin pancreatic glucose clamp and minimal model analysis of frequently sampled intravenous glucose tolerance test (FSIVGTT), both of which are laborious and not feasible in large epidemiological studies. Consequently, surrogate indices derived from an oral glucose tolerance test (OGTT) to measure GE (oGE) have been proposed and used in many studies. However, the predictive accuracy of these surrogates has not been formally validated. In this study, we used a calibration model analysis to evaluate the accuracy of surrogate indices to predict GE from the reference FSIVGTT (SgMM). METHODS: Subjects (n = 123, mean age 48 ± 11 years; BMI 35.9 ± 7.3 kg/m2) with varying glucose tolerance (NGT, n = 37; IFG/IGT, n = 78; and T2DM, n = 8) underwent FSIVGTT and OGTT on two separate days. Predictive accuracy was assessed by both root mean squared error (RMSE) of prediction and leave-one-out cross-validation-type RMSE of prediction (CVPE). RESULTS: As expected, insulin sensitivity, SgMM, and oGE were reduced in subjects with T2DM and IFG/IGT when compared with NGT. Simple linear regression analyses revealed a modest but significant relationship between oGE and SgMM (r = 0.25, p < 0.001). However, using calibration model, measured SgMM and predicted SgMM derived from oGE were modestly correlated (r = 0.21, p < 0.05) with the best fit line suggesting poor predictive accuracy. There were no significant differences in CVPE and RMSE among the surrogates, suggesting similar predictive ability. CONCLUSIONS: Although OGTT-derived surrogate indices of GE are convenient and feasible, they have limited ability to robustly predict GE.


Assuntos
Glucose/metabolismo , Indicadores Básicos de Saúde , Modelos Biológicos , Administração Intravenosa , Administração Oral , Adulto , Glicemia/metabolismo , Calibragem , Estudos de Coortes , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/metabolismo , Feminino , Glucose/administração & dosagem , Técnica Clamp de Glucose/métodos , Técnica Clamp de Glucose/normas , Intolerância à Glucose/sangue , Intolerância à Glucose/diagnóstico , Intolerância à Glucose/metabolismo , Teste de Tolerância a Glucose/métodos , Teste de Tolerância a Glucose/normas , Humanos , Resistência à Insulina , Masculino , Pessoa de Meia-Idade , Estado Pré-Diabético/sangue , Estado Pré-Diabético/diagnóstico , Estado Pré-Diabético/metabolismo , Valor Preditivo dos Testes , Padrões de Referência , Reprodutibilidade dos Testes
11.
J Natl Med Assoc ; 111(1): 76-82, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30032866

RESUMO

BACKGROUND: The influence of obesity on the development of prediabetes among African American women (AAW) remains uncertain. Thus, we investigated whether the pathogenic mechanisms of prediabetes differ in obese (OB, BMI<35 kg/m2) and very obese (VOB, BMI>35 kg/m2) AAW. SUBJECTS/METHODS: We recruited 26-OB and 41-VOB, AAW with prediabetes, mean age (46.3 ± 10.3 years), A1C (5.9 ± 0.4%) and BMI (38.3 ± 8.2 kg/m2). OGTT and FSIVGT were performed in each subject. Body composition (% body fat) was measured using DEXA. Si, Sg acute insulin response to glucose (AIRg) and disposition index (DI) were calculated using minimal model method. RESULTS: Mean BMI (32.6 ± 1.9 vs. 42.8 ± 5.5 kg/m2) and %body fat (44.7 ± 2.0 vs. 49.6 ± 2.2%) were significantly (p = 0.0001) lower in OB vs VOB. Mean fasting and post-glucose challenge, (glucose, insulin, c-peptide) levels were significantly (p = 0.03-0.0001) lower in OB vs VOB. Mean Si and Sg was not different. Mean AIRg tended to be higher (808 ± 776 vs. 535 ± 443 (x min [uU/L] -1), p = 0.106) whereas DI was greater (1999 ± 1408 vs. 1511 ± 1033, (×10-2 x min-1), p = 0.01) in OB vs VOB subjects. CONCLUSION: We found that OB and VOB AAW had similar Si and Sg, but VOB showed attenuated AIRg and DI. These parameters should be considered when developing primary prevention programs in AAW with prediabetes.


Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Diabetes Mellitus Tipo 2/prevenção & controle , Obesidade/complicações , Estado Pré-Diabético/etiologia , Composição Corporal , Índice de Massa Corporal , Diabetes Mellitus Tipo 2/etnologia , Feminino , Teste de Tolerância a Glucose , Humanos , Pessoa de Meia-Idade , Obesidade/etnologia , Estado Pré-Diabético/etnologia
13.
Artigo em Inglês | MEDLINE | ID: mdl-28912752

RESUMO

Cardiovascular diseases (CVD) remain as the leading cause of mortality in the western world and have become a major health threat for developing countries. There are several risk factors that account for the CVD and the associated mortality. These include genetics, type 2 diabetes (T2DM), obesity, physical inactivity, hypertension, and abnormal lipids and lipoproteins. The constellation of these risk factors has been termed metabolic syndrome (MetS). MetS varies among racial and ethnic populations. Thus, race and ethnicity account for some of the differences in the MetS and the associated CVD and T2DM. Furthermore, the relationships among traditional metabolic parameters and CVD differ, especially when comparing Black and White populations. In this regard, the greater CVD in Blacks than Whites have been partly attributed to other non-traditional CVD risk factors, such as subclinical inflammation (C-reactive protein), homocysteine, increased low-density lipoprotein oxidation, lipoprotein a, adiponectin, and plasminogen activator inhibitor-1, etc. Thus, to understand CVD and T2DM differences in Blacks and Whites with MetS, it is essential to explore the contributions of both traditional and non-traditional CVD and T2DM risk factors in Blacks of African ancestry and Whites of Europoid ancestry. Therefore, in this mini review, we propose that non-traditional risk factors should be integrated in defining MetS as a predictor of CVD and T2DM in Blacks in the African diaspora in future studies.

14.
Lab Chip ; 17(15): 2550-2560, 2017 07 25.
Artigo em Inglês | MEDLINE | ID: mdl-28675233

RESUMO

Eccrine sweat has rapidly emerged as a non-invasive, ergonomic, and rich source of chemical analytes with numerous technological demonstrations now showing the ability for continuous electrochemical sensing. However, beyond active perspirers (athletes, workers, etc.), continuous sweat access in individuals at rest has hindered the advancement of both sweat sensing science and technology. Reported here is integration of sudomotor axon reflex sweat stimulation for continuous wearable sweat analyte analysis, including the ability for side-by-side integration of chemical stimulants & sensors without cross-contamination. This integration approach is uniquely compatible with sensors which consume the analyte (enzymatic) or sensors which equilibrate with analyte concentrations. In vivo validation is performed using iontophoretic delivery of carbachol with ion-selective and impedance sensors for sweat analysis. Carbachol has shown prolonged sweat stimulation in directly stimulated regions for five hours or longer. This work represents a significant leap forward in sweat sensing technology, and may be of broader interest to those interested in on-skin sensing integrated with drug-delivery.


Assuntos
Iontoforese/instrumentação , Iontoforese/métodos , Suor/química , Calibragem , Carbacol/química , Carbacol/farmacologia , Cloretos/análise , Eletrodos , Desenho de Equipamento , Humanos , Pressão , Sódio/análise , Sudorese/efeitos dos fármacos , Sudorese/fisiologia
15.
Diabetes Res Clin Pract ; 130: 278-285, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28629856

RESUMO

OBJECTIVE: Prediabetes, a major precursor of type 2 diabetes, varies among ethnic populations. Therefore, we compared the pathophysiologic mechanisms of prediabetes in overweight/obese African American (AA) and White American (WA) women. SUBJECTS AND METHODS: We recruited 95 women (67 AA, 28 WA) with prediabetes. Standard OGTT and FSIVGTT were performed in each subject. Insulin sensitivity (Si), glucose effectiveness (Sg), beta cell function (acute insulin response to glucose (AIRg) and disposition index (DI: Si×AIRg) were calculated using Bergman's Minmod. RESULTS: Mean BMI was greater in AA vs WA with prediabetes (38.3±8.2vs 34.6±8.5kg/m2, p=0.05). Mean fasting serum glucose, and insulin levels were lower in AA vs WA. Similarly, mean peak serum glucose levels were lower while peak insulin levels were higher at 30 and 60minutes in AA vs WA. In contrast, mean fasting and peak serum c-peptide levels at 60 and 90minutes were significantly lower in AA vs WA. Mean AIRg was higher but not significantly different in AA vs WA (633±520.92 vs 414.8±246.8, p=0.193). Although, Si (2.93±3.25vs 44 2.50±1.76 (×10-4×min-1 [µU/ml]-1), p=0.448) was not different, DI was significantly higher in AA vs WA (1381±1126 vs 901.9±477.1, p=0.01). In addition, mean Sg was significantly higher in AAvs WA (2.51±1.17 vs 1.97±0.723 (×10-2/min), p=0.02). CONCLUSIONS: We found that in overweight/obese prediabetic AA and WA women with similar Si, the mean Sg and DI were significantly higher in AA. We conclude that the pathophysiologic mechanisms of prediabetes differ in the overweight/obese AA and WA women.


Assuntos
Negro ou Afro-Americano , Glicemia/metabolismo , Diabetes Mellitus Tipo 2/etnologia , Obesidade/etnologia , Sobrepeso/etnologia , Estado Pré-Diabético/etnologia , População Branca , Diabetes Mellitus Tipo 2/sangue , Feminino , Humanos , Pessoa de Meia-Idade , Obesidade/sangue , Sobrepeso/sangue , Estado Pré-Diabético/sangue
16.
Artigo em Inglês | MEDLINE | ID: mdl-29403438

RESUMO

The Metabolic Syndrome (MetS) is recognized as a predictor of cardiovascular outcomes and type 2 diabetes (T2DM). The MetS is a constellation of clinical and metabolic risk factors that include abdominal obesity, dyslipidemia, glucose intolerance, and hypertension. There are ethnic and racial differences in the prevalence of MetS and its components. In general, African-Americans have lower prevalence of MetS when compared to whites, but suffer disproportionately from higher cardiovascular mortality and T2DM. Specifically, African-American women (AAW) have higher rates of T2DM and cardiovascular mortality despite a more favorable lipid and lipoprotein profile. This is paradoxical. However, there is a general upward trend in the prevalence of MetS in the US. The reasons are debatable, but could be multifactorial, including genetics and environmental factors. Thus, there is a need to understand the increasing trend in the MetS, its components, and the associated outcomes for AAW. Therefore, the purpose of this mini review is to (1) understand the increasing prevalence of MetS and its components in AAW and (2) provide suggestions for future prevention of cardiovascular disease and T2DM in AAW.

17.
BMJ Open Diabetes Res Care ; 4(1): e000246, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27547417

RESUMO

OBJECTIVE: African-American women (AAW) suffer disproportionately from higher rates of cardiovascular disease (CVD) mortality compared with white American women (WAW), despite favorable lipid and lipoprotein profile. Therefore, we used nuclear magnetic resonance (NMR) to examine lipoprotein particle concentrations and sizes in overweight/obese AAW and WAW with pre-diabetes. PARTICIPANTS AND METHODS: We studied 69 AAW and 41 WAW, with mean age 46.5±11.3 years and body mass index (BMI) 37.8±6.4 kg/m(2). All participants completed standard oral glucose tolerance test (OGTT) and frequently sampled intravenous glucose tolerance test (FSIVGTT). Insulin sensitivity (Si) was calculated using MINIMOD method. Body composition was assessed using dual-energy X-ray absorptiometry (DEXA). Fasting blood was obtained for traditional lipids/lipoproteins and NMR-derived lipoprotein particle sizes and concentrations. RESULTS: We found that AAW with pre-diabetes were more obese (BMI 38.8±6.7 vs 36.0±5.4 kg/m(2), p=0.02) than WAW. Mean Si was not significantly different. However, the mean serum triglycerides were lower, whereas the high-density lipoprotein cholesterol (HDL-C) and apolipoprotein A1 (Apo A1) were significantly higher in AAW versus WAW. The large HDL particle concentration (6.1±3.1 vs 4.6±3.1 µmol/L, p=0.02) was significantly higher in AAW versus WAW. Mean total very low-density lipoprotein (VLDL) particle concentration was lower in AAW versus WAW (39.9±24.4 vs 59.2±25.6 nmol/L, p≤0.001). While mean total LDL particle concentrations were not different, mean small LDL particle concentrations were lower in AAW versus WAW (538.8±294.1 vs 638.4±266 nmol/L, p=0.07). CONCLUSIONS: We found a more favorable NMR-derived lipoprotein profile in AAW that extends the traditional antiatherogenic lipid/lipoprotein profiles. Clinically, these favorable lipid/lipoprotein profiles cannot explain the paradoxically higher CVD mortality in AAW than WAW and warrant further prospective outcome studies.

18.
J Racial Ethn Health Disparities ; 3(1): 117-28, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26896111

RESUMO

The global epidemic of diabetes has extended to the developing countries including Sub-Sahara Africa. In this context, blacks with type 2 diabetes in the African Diaspora continue to manifest 1.5-2 times higher prevalent rates than in their white counterparts. Previous studies have demonstrated that blacks with and without type 2 diabetes have alterations in hepatic and peripheral insulin sensitivity, beta-cell function, and hepatic insulin clearance as well as hepatic glucose dysregulation when compared to whites. In addition, non-diabetic blacks in the African Diaspora manifest multiple metabolic mediators that predict type 2 diabetes and its subtypes. These pathogenic modifiers include differences in subclinical inflammation, oxidative stress burden, and adipocytokines in blacks in the African Diaspora prior to clinical diagnosis. Consequently, blacks in the African Diaspora manifest subtypes of type 2 diabetes, including ketosis-prone diabetes and J type diabetes. Given the diversity of type 2 diabetes in blacks in the African Diaspora, we hypothesize that blacks manifest multiple early pathogenic defects prior to the diagnosis of type 2 diabetes and its subtypes. These metabolic alterations have strong genetic component, which appears to play pivotal and primary role in the pathogenesis of type 2 diabetes and its subtypes in blacks in the African Diaspora. However, environmental factors must also be considered as major contributors to the higher prevalence of type 2 diabetes and its subtypes in blacks in the African Diaspora. These multiple alterations should be targets for early prevention of type 2 diabetes in blacks in the African Diaspora.


Assuntos
População Negra/estatística & dados numéricos , Diabetes Mellitus Tipo 1/etnologia , Diabetes Mellitus Tipo 2/etnologia , Disparidades nos Níveis de Saúde , África Subsaariana/epidemiologia , Diabetes Mellitus Tipo 1/fisiopatologia , Diabetes Mellitus Tipo 2/fisiopatologia , Humanos , Resistência à Insulina/etnologia , Resistência à Insulina/fisiologia , Prevalência , População Branca/estatística & dados numéricos
19.
Math Biosci Eng ; 13(1): 83-99, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26776262

RESUMO

Diabetes affects millions of Americans, and the correct identification of individuals afflicted with this disease, especially of those in early stages or in progression towards diabetes, remains an active area of research. The minimal model is a simplified mathematical construct for understanding glucose-insulin interactions. Developed by Bergman, Cobelli, and colleagues over three decades ago, this system of coupled ordinary differential equations prevails as an important tool for interpreting data collected during an intravenous glucose tolerance test (IVGTT). In this study we present an explicit solution to the minimal model which allows for separating the glucose and insulin dynamics of the minimal model and for identifying patient-specific parameters of glucose trajectories from IVGTT. As illustrated with patient data, our approach seems to have an edge over more complicated methods currently used. Additionally, we also present an application of our method to prediction of the time to baseline recovery and calculation of insulin sensitivity and glucose effectiveness, two quantities regarded as significant in diabetes diagnostics.


Assuntos
Glicemia/metabolismo , Diabetes Mellitus/metabolismo , Resistência à Insulina , Insulina/sangue , Modelos Biológicos , Simulação por Computador , Humanos , Taxa de Depuração Metabólica
20.
J Natl Black Nurses Assoc ; 26(1): 50-7, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26371360

RESUMO

African-Americans with type 2 diabetes (T2DM) have higher morbidity and mortality partly attributed to poor glucose control and lack of formal diabetes self-management education and support (DSMES) programs compared to Whites. Therefore, the objective of this study was to compare the clinical and metabolic parameters during DSMES vs. standard care in African-Americans with T2DM attending primary care inner city clinics. We recruited 124 African-American patients with T2DM, randomized into Group 1-DSMES (n = 58) and Group 2-standard care group (n = 38) for 6 months. Body weight, blood pressure, random blood sugars and point-of-care (POC) hemoglobin A1C (A1C) and lipids/lipoproteins were measured at 0, 3, and 6 months. At 6 months, Group 1 had significant reduction in A1C (8.2 ± 1.4% vs. 7.5 ± 1.5%, p = 0.02) and random glucose (190.4 ± 77.6 vs. 160.6 ± 59.8 mg/dl, p = 0.03). However, there were no changes in body weight, blood pressure, or lipids/lipoprotein levels. We found no significant changes in the clinical/metabolic parameters in Group 2. We concluded that DSMES, supplemented with POC testing, was associated with significant improvements in glycemic control without changes in body weight, blood pressure, or lipids/lipoproteins. We recommend the inclusion of DSMES with POC testing in managing African-American patients with T2DM attending inner city primary care clinics.


Assuntos
População Negra , Glicemia/análise , Diabetes Mellitus Tipo 2/etnologia , Educação de Pacientes como Assunto/organização & administração , Assistência Centrada no Paciente/organização & administração , Sistemas Automatizados de Assistência Junto ao Leito , Adulto , Idoso , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/enzimologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA