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1.
Prostate ; 83(11): 1046-1059, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37154584

RESUMEN

BACKGROUND: Cholesterol reduction is considered a mechanism through which cholesterol-lowering drugs including statins are associated with a reduced aggressive prostate cancer risk. While prior cohort studies found positive associations between total cholesterol and more advanced stage and grade in White men, whether associations for total cholesterol, low (LDL)- and high (HDL)-density lipoprotein cholesterol, apolipoprotein B (LDL particle) and A1 (HDL particle), and triglycerides are similar for fatal prostate cancer and in Black men, who experience a disproportionate burden of total and fatal prostate cancer, is unknown. METHODS: We conducted a prospective study of 1553 Black and 5071 White cancer-free men attending visit 1 (1987-1989) of the Atherosclerosis Risk in Communities Study. A total of 885 incident prostate cancer cases were ascertained through 2015, and 128 prostate cancer deaths through 2018. We estimated multivariable-adjusted hazard ratios (HRs) of total and fatal prostate cancer per 1-standard deviation increments and for tertiles (T1-T3) of time-updated lipid biomarkers overall and in Black and White men. RESULTS: Greater total cholesterol concentration (HR per-1 SD = 1.25; 95% CI = 1.00-1.58) and LDL cholesterol (HR per-1 SD = 1.26; 95% CI = 0.99-1.60) were associated with higher fatal prostate cancer risk in White men only. Apolipoprotein B was nonlinearly associated with fatal prostate cancer overall (T2 vs. T1: HR = 1.66; 95% CI = 1.05-2.64) and in Black men (HR = 3.59; 95% CI = 1.53-8.40) but not White men (HR = 1.13; 95% CI = 0.65-1.97). Tests for interaction by race were not statistically significant. CONCLUSIONS: These findings may improve the understanding of lipid metabolism in prostate carcinogenesis by disease aggressiveness, and by race while emphasizing the importance of cholesterol control.


Asunto(s)
Colesterol , Neoplasias de la Próstata , Masculino , Humanos , Triglicéridos , HDL-Colesterol , Estudios Prospectivos , Apolipoproteínas , Neoplasias de la Próstata/epidemiología , Factores de Riesgo
2.
Ann Intern Med ; 175(8): 1073-1082, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35785532

RESUMEN

BACKGROUND: Although the population-level differences between estimated glomerular filtration rate (eGFR) and measured glomerular filtration rate (mGFR) are well recognized, the magnitude and potential clinical implications of individual-level differences are unknown. OBJECTIVE: To quantify the magnitude and consequences of the individual-level differences between mGFRs and eGFRs. DESIGN: Cross-sectional study. SETTING: Four U.S. community-based epidemiologic cohort studies with mGFR. PATIENTS: 3223 participants in 4 studies. MEASUREMENTS: The GFRs were measured using urinary iothalamate and plasma iohexol clearance; the eGFR was calculated from serum creatinine concentration alone (eGFRCR) and with cystatin C. All GFR results are presented as mL/min/1.73 m2. RESULTS: The participants' mean age was 59 years; 32% were Black, 55% were women, and the mean mGFR was 68. The population-level differences between mGFR and eGFRCR were small; the median difference (mGFR - eGFR) was -0.6 (95% CI, -1.2 to -0.2); however, the individual-level differences were large. At an eGFRCR of 60, 50% of mGFRs ranged from 52 to 67, 80% from 45 to 76, and 95% from 36 to 87. At an eGFRCR of 30, 50% of mGFRs ranged from 27 to 38, 80% from 23 to 44, and 95% from 17 to 54. Substantial disagreement in chronic kidney disease staging by mGFR and eGFRCR was present. Among those with eGFRCR of 45 to 59, 36% had mGFR greater than 60 whereas 20% had mGFR less than 45; among those with eGFRCR of 15 to 29, 30% had mGFR greater than 30 and 5% had mGFR less than 15. The eGFR based on cystatin C did not provide substantial improvement. LIMITATION: Single measurement of mGFR and serum markers without short-term replicates. CONCLUSION: A substantial individual-level discrepancy exists between the mGFR and the eGFR. Laboratories reporting eGFR should consider including the extent of this uncertainty to avoid misinterpretation of eGFR as an mGFR replacement. PRIMARY FUNDING SOURCE: National Institutes of Health.


Asunto(s)
Cistatina C , Insuficiencia Renal Crónica , Creatinina , Estudios Transversales , Femenino , Tasa de Filtración Glomerular , Humanos , Pruebas de Función Renal/métodos , Masculino , Persona de Mediana Edad
3.
N Engl J Med ; 372(1): 21-9, 2015 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-25551524

RESUMEN

BACKGROUND: Approximately 4% of black Americans carry a valine-to-isoleucine substitution (V122I) in the transthyretin protein, which has been associated with late-onset restrictive amyloid cardiomyopathy and increased risks of death and heart failure. METHODS: We determined genotype status for the transthyretin gene (TTR) in 3856 black participants in the Atherosclerosis Risk in Communities study and assessed clinical profiles, mortality, and the risk of incident heart failure in V122I TTR variant carriers (124 participants [3%]) versus noncarriers (3732 participants). Cardiac structure and function and features suggestive of cardiac amyloidosis were assessed in participants who underwent echocardiography during visit 5 (2011 to 2013), when they were older than 65 years of age. RESULTS: After 21.5 years of follow-up, we did not detect a significant difference in mortality between carriers (41 deaths, 33%) and noncarriers (1382 deaths, 37%; age- and sex-stratified hazard ratio among carriers, 0.99; 95% confidence interval [CI], 0.73 to 1.36; P=0.97). The TTR variant was associated with an increased risk of incident heart failure (age- and sex-stratified hazard ratio, 1.47; 95% CI, 1.03 to 2.10; P=0.04). On echocardiography at visit 5, carriers (46 participants) had worse systolic and diastolic function, as well as a higher level of N-terminal pro-brain natriuretic peptide, than noncarriers (1194 participants), although carriers had a low prevalence (7%) of overt manifestations of amyloid cardiomyopathy. CONCLUSIONS: We did not detect a significant difference in mortality between V122I TTR allele carriers and noncarriers, a finding that contrasts with prior observations; however, the risk of heart failure was increased among carriers. The prevalence of overt cardiac abnormalities among V122I TTR carriers was low. (Funded by the National Heart, Lung, and Blood Institute and others.).


Asunto(s)
Amiloidosis/genética , Negro o Afroamericano/genética , Cardiomiopatía Restrictiva/genética , Insuficiencia Cardíaca/genética , Prealbúmina/genética , Anciano , Amiloidosis/etnología , Cardiomiopatía Restrictiva/etnología , Estudios de Cohortes , Ecocardiografía , Femenino , Estudios de Seguimiento , Genotipo , Insuficiencia Cardíaca/etnología , Insuficiencia Cardíaca/mortalidad , Heterocigoto , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Péptido Natriurético Encefálico/sangre , Fragmentos de Péptidos/sangre
4.
JAAPA ; 30(5): 44-48, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28441219

RESUMEN

This article describes the history of physician assistants (PAs) in Mississippi, the last state to pass legislation allowing for PA practice. A small group of PAs in the state began pursuing a PA practice act in the early 1990s with little political advocacy experience, and in 1994, the American Academy of PAs actively joined "The Battle for Mississippi." In April 2000, after years of PA advocacy, Mississippi passed the bill that would authorize PA practice in the state.


Asunto(s)
Asistentes Médicos/legislación & jurisprudencia , Historia del Siglo XX , Historia del Siglo XXI , Humanos , Mississippi , Asistentes Médicos/historia
5.
JAAPA ; 30(5): 1-4, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28441227

RESUMEN

This article gives the first-hand perspectives of three physician assistants (PAs) involved in the profession's years of struggle to gain practice authority in Mississippi. Through a series of questions and answers, each PA describes his or her part in the historical events that made Mississippi the final US state to regulate PAs.


Asunto(s)
Actitud del Personal de Salud , Asistentes Médicos/psicología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mississippi , Asistentes Médicos/legislación & jurisprudencia , Sociedades Médicas/legislación & jurisprudencia
6.
J Am Heart Assoc ; 13(6): e032008, 2024 Mar 19.
Artículo en Inglés | MEDLINE | ID: mdl-38456405

RESUMEN

BACKGROUND: Sudden cardiac death (SCD) is a significant global public health problem accounting for 15% to 20% of all deaths. A great majority of SCD is associated with coronary heart disease, which may first be detected at autopsy. The ankle-brachial index (ABI) is a simple, noninvasive measure of subclinical atherosclerosis. The purpose of this study was to examine the relationship between ABI and SCD in a middle-aged biracial general population. METHODS AND RESULTS: Participants of the ARIC (Atherosclerosis Risk in Communities) study with an ABI measurement between 1987 and 1989 were included. ABI was categorized as low (≤0.90), borderline (0.90-1.00), normal (1.00-1.40), and noncompressible (>1.40). SCD was defined as a sudden pulseless condition presumed to be caused by a ventricular tachyarrhythmia in a previously stable individual and was adjudicated by a committee of cardiac electrophysiologists, cardiologists, and internists. Cox proportional hazards models were used to evaluate the associations between baseline ABI and incident SCD. Of the 15 081 participants followed for a median of 23.5 years, 556 (3.7%) developed SCD (1.96 cases per 1000 person-years). Low and borderline ABIs were associated with an increased risk of SCD (demographically adjusted hazard ratios [HRs], 2.27 [95% CI, 1.64-3.14] and 1.52 [95% CI, 1.17-1.96], respectively) compared with normal ABI. The association between low ABI and SCD remained significant after adjustment for traditional cardiovascular risk factors (HR, 1.63 [95% CI, 1.15-2.32]). CONCLUSIONS: Low ABI is independently associated with an increased risk of SCD in a middle-aged biracial general population. ABI could be incorporated into future SCD risk prediction models.


Asunto(s)
Aterosclerosis , Enfermedad Coronaria , Persona de Mediana Edad , Humanos , Índice Tobillo Braquial , Factores de Riesgo , Aterosclerosis/epidemiología , Muerte Súbita Cardíaca/epidemiología , Muerte Súbita Cardíaca/etiología , Enfermedad Coronaria/complicaciones , Medición de Riesgo
7.
J Am Heart Assoc ; 13(2): e031778, 2024 Jan 16.
Artículo en Inglés | MEDLINE | ID: mdl-38214278

RESUMEN

BACKGROUND: Pulse wave velocity (PWV) is a noninvasive measure of arterial stiffness and predictor of cardiovascular disease. However, the association between PWV and vascular calcification across different vascular beds has not been fully investigated. This study aimed to quantify the association between PWV and multiterritory calcification and to explore whether PWV can identify individuals with vascular calcification beyond traditional risk factors. METHODS AND RESULTS: Among 1351 older adults (mean age, 79.2 years [SD, 4.1]) from the ARIC (Atherosclerosis Risk in Communities) study, we measured segment-specific PWVs: heart-carotid, heart-femoral, carotid-femoral, heart-ankle, brachial-ankle, and femoral-ankle. Dependent variables were high calcium score (≥75th percentile of Agatston score) across different vascular beds: coronary arteries, aortic valve ring, aortic valve, mitral valve, ascending aorta, and descending aorta. Quartiles of carotid-femoral, heart-femoral, heart-ankle, and brachial-ankle PWV were significantly associated with coronary artery calcium (eg, adjusted odds ratio [OR] for the highest versus lowest quartile of carotid-femoral PWV, 1.84 [95% CI, 1.24-2.74]). Overall, PWVs were most strongly associated with descending aorta calcification, with significant results for carotid-femoral, heart-femoral, heart-ankle, and brachial-ankle PWV (eg, adjusted OR for the highest versus lowest quartile of carotid-femoral PWV, 3.99 [95% CI, 2.61-6.17]). In contrast, femoral-ankle PWV was inversely associated with descending aorta calcification. Some PWVs improved the discrimination of coronary artery calcium and descending aorta calcification beyond traditional risk factors. CONCLUSIONS: The associations of PWV with vascular calcification varied substantially across segments, with descending aorta calcification most closely linked to PWVs. Our study suggests that some PWVs, especially carotid-femoral PWV, are helpful to identify individuals with coronary artery calcium and descending aorta calcification.


Asunto(s)
Aterosclerosis , Enfermedades Cardiovasculares , Calcificación Vascular , Rigidez Vascular , Humanos , Anciano , Análisis de la Onda del Pulso/métodos , Calcio , Calcificación Vascular/epidemiología , Aterosclerosis/diagnóstico , Aterosclerosis/epidemiología
8.
AIDS Care ; 25(1): 77-84, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-22612404

RESUMEN

The objective of this cross-sectional study was to describe the relationship between access to care and health-related quality of life (HRQOL) for persons living with HIV/AIDS (PLWHA) in Mississippi by administering a statewide survey. A random probability sample of PLWHA was derived from the Mississippi State Department of Health's communicable disease tracking system. Interviews were conducted with 220 PLWHA to collect data on access to care, demographic and social characteristics, and HRQOL. Overall, most participants had access to care and reasonable HRQOL. Multivariate and univariate analyses were performed to measure associations between access to care and HRQOL. Univariate analyses showed that age, income, social networks, severity of disease, having been prescribed medications, and having experienced problems accessing care to be significantly associated with HRQOL scales. Multivariate analysis of variance models further demonstrated low-income level, having experienced problems accessing care, and having been prescribed antiretroviral medications to be significantly associated with HRQOL. Reducing barriers is a major factor in improving quality of life. This study provides needed insight into the relationship between access to care and HRQOL among PLWHA in Mississippi, which could be valuable to public health planners to help them better understand how to make the greatest impact on HRQOL.


Asunto(s)
Antirretrovirales/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Accesibilidad a los Servicios de Salud , Calidad de Vida/psicología , Adolescente , Adulto , Factores de Edad , Análisis de Varianza , Estudios Transversales , Femenino , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Mississippi/epidemiología , Análisis Multivariante , Índice de Severidad de la Enfermedad , Factores Sexuales , Estigma Social , Apoyo Social , Factores Socioeconómicos , Encuestas y Cuestionarios
9.
AIDS Care ; 25(8): 973-9, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23252519

RESUMEN

A statewide needs assessment of persons living with HIV/AIDS (PLWHA) was conducted to determine what is known about access to care, utilization of services, and perceived barriers to receiving care and services. Our objective was to determine which needs were being met or unmet among PLWHA in Mississippi to provide a better understanding of how effectively to allocate funding to provide for the needs of that group. In this cross-sectional study, a true random sample of PLWHA in Mississippi was interviewed in 2005-2006. Questions were asked to identify opinions about respondents' experiences with 23 health care services and 30 public or private assistance services. The kappa statistic was used to measure agreement between level of services needed and level of services provided. Services with the lowest kappa scores revealed which services were being either mostly unmet, or even overly met. Greatest service needs were HIV viral load test, Pap smear, CD4/T-cell count test, and medication for HIV/AIDS, which were reasonably well met. The most significantly unmet needs were dental care and dental exams, eye care and eye exams, help paying for housing, subsidized housing assistance, mental health therapy or counseling, access to emotional support groups, and job placement or employment. Overly met services included medical care at a physician's office or clinic and free condoms. This study identified needs perceived to be significantly unmet by PLWHA, as well as areas that were perceived to be adequately or overly met. This information may be used to target areas with the greatest impact for improvement and provide insight into how to effectively allocate health care resources and public/private assistance.


Asunto(s)
Infecciones por VIH/tratamiento farmacológico , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Necesidades y Demandas de Servicios de Salud/estadística & datos numéricos , Síndrome de Inmunodeficiencia Adquirida/terapia , Adolescente , Adulto , Distribución por Edad , Anciano , Fármacos Anti-VIH/uso terapéutico , Servicios de Salud Comunitaria/estadística & datos numéricos , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mississippi , Servicios Preventivos de Salud/normas , Servicios Preventivos de Salud/estadística & datos numéricos , Adulto Joven
10.
Am J Cardiol ; 194: 102-110, 2023 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-36914508

RESUMEN

Black patients have higher incident fatal coronary heart disease (CHD) rates than do their White counterparts. Racial differences in out-of-hospital fatal CHD could explain the excess risk in fatal CHD among Black patients. We examined racial disparities in in- and out-of-hospital fatal CHD among participants with no history of CHD, and whether socioeconomic status might play a role in this association. We used data from the ARIC (Atherosclerosis Risk in Communities) study, including 4,095 Black and 10,884 White participants, followed between 1987 and 1989 until 2017. Race was self-reported. We examined racial differences in in- and out-of-hospital fatal CHD with hierarchical proportional hazard models. We then examined the role of income in these associations, using Cox marginal structural models for a mediation analysis. The incidence of out-of-hospital and in-hospital fatal CHD was 1.3 and 2.2 in Black participants, and 1.0 and 1.1 in White participants, respectively, per 1,000 person-years. The gender- and age-adjusted hazard ratios comparing out-of-hospital and in-hospital incident fatal CHD in Black with that in White participants were 1.65 (1.32 to 2.07) and 2.37 (1.96 to 2.86), respectively. The income-controlled direct effects of race in Black versus White participants decreased to 1.33 (1.01 to 1.74) for fatal out-of-hospital and to 2.03 (1.61 to 2.55) for fatal in-hospital CHD in Cox marginal structural models. In conclusion, higher rates of fatal in-hospital CHD in Black participants than in their White counterparts likely drive the overall racial differences in fatal CHD. Income largely explained racial differences in both fatal out-of-hospital CHD and fatal in-hospital CHD.


Asunto(s)
Aterosclerosis , Enfermedad Coronaria , Humanos , Estudios de Cohortes , Factores Raciales , Enfermedad Coronaria/epidemiología , Aterosclerosis/epidemiología , Renta , Incidencia , Factores de Riesgo
11.
Atherosclerosis ; 368: 35-43, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36754659

RESUMEN

BACKGROUND AND AIMS: The contribution of kidney dysfunction, especially at mild-to-moderate stages, and bone-mineral metabolism (BMM) markers to vascular calcification remains controversial or unclear. We comprehensively evaluated the association of kidney and BMM markers with coronary artery calcification (CAC) and extra-coronary calcification (ECC). METHODS: In 1931 ARIC participants (age 73-95 years) without coronary heart disease at visit 7 (2018-19), we investigated the associations of estimated glomerular filtration rate (eGFR) (with creatinine, cystatin C, and both) and five serum BMM markers (calcium, fibroblast growth factor 23, magnesium, parathyroid hormone, and phosphorus) with high CAC and ECC (sex-race specific ≥75th vs. <75th percentile Agatston score) or any vs. zero CAC and ECC using multivariable logistic regression. For eGFR and BMM markers, we took their weighted cumulative averages from visit 1 (1987-89) to visit 5 (2011-13). RESULTS: Lower eGFR, regardless of equations used, was not robustly associated with high CAC or ECC. Among BMM markers, only higher phosphorus levels, even within the normal range, showed robust associations with high CAC (only when modeled continuously) and ECC, independently of kidney function (e.g., odds ratio 1.94 [95%CI 1.38-2.73] for high aortic valve calcification, in the highest vs. lowest quartile). Results were generally consistent when analyzing any CAC or ECC, although cystatin C-based eGFR <60 mL/min/1.73 m2 became significantly associated with mitral valve calcification (odds ratio 1.69 [1.10-2.60]). CONCLUSIONS: Among kidney and BMM measures tested, only serum phosphorus demonstrated robust associations with both CAC and ECC, supporting a key role of phosphorus in the pathophysiology of vascular calcification.


Asunto(s)
Enfermedad de la Arteria Coronaria , Calcificación Vascular , Humanos , Anciano , Anciano de 80 o más Años , Vasos Coronarios , Cistatina C , Riñón , Biomarcadores , Aorta/metabolismo , Válvula Aórtica/metabolismo , Fósforo , Minerales/metabolismo , Factores de Riesgo
12.
Artículo en Inglés | MEDLINE | ID: mdl-38099995

RESUMEN

Black men are disproportionately burdened by hypertension and prostate cancer (PCa), and some cohorts suggest hypertension is associated with increased PCa risk. We investigated the association of hypertension and antihypertensive use with total (N = 889; 290 Black, 599 White) and fatal (N = 127; 42 Black, 85 White) PCa risk in 6658 (1578 Black, 5080 White) men in the Atherosclerosis Risk in Communities study. In adjusted Cox models, time-updated untreated stage 1 hypertension (systolic/diastolic blood pressure 130-139/80-89 mmHg) was associated with a higher risk of fatal PCa compared to untreated normal blood pressure (hazard ratio (HR) = 1.95; 95% confidence interval (CI) = 1.03-3.70). Compared to untreated normal/elevated blood pressure (combined given few events in those with untreated normal blood pressure), the association was significant in Black (HR = 3.35; 95% CI = 1.27-8.83), but not White (HR = 1.21; 95% CI = 0.58-2.55) men. Ever antihypertensive use was associated with a lower risk of fatal PCa compared to never use (HR = 0.52; 95% CI = 0.31-0.87), including short-term (< 10 years) and long-term (310 years) use (p-trend = 0.02) with similar inverse associations in Black and White men. Hypertension and antihypertensive use were not significantly associated with total PCa. The positive association of untreated stage 1 hypertension and fatal PCa warrants additional confirmation, especially in Black men, and characterization of the underlying mechanism.

13.
Cancer Epidemiol Biomarkers Prev ; 32(9): 1190-1197, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-37410084

RESUMEN

BACKGROUND: Cervical cancer oncogenesis starts with human papillomavirus (HPV) cell entry after binding to host cell surface receptors; however, the mechanism is not fully known. We examined polymorphisms in receptor genes hypothesized to be necessary for HPV cell entry and assessed their associations with clinical progression to precancer. METHODS: African American women (N = 1,728) from the MACS/WIHS Combined Cohort Study were included. Two case-control study designs were used-cases with histology-based precancer (CIN3+) and controls without; and cases with cytology-based precancer [high-grade squamous intraepithelial lesions (HSIL)] and controls without. SNPs in candidate genes (SDC1, SDC2, SDC3, SDC4, GPC1, GPC2, GPC3, GPC4, GPC5, GPC6, and ITGA6) were genotyped using an Illumina Omni2.5-quad beadchip. Logistic regression was used to assess the associations in all participants and by HPV genotypes, after adjusting for age, human immunodeficiency virus serostatus, CD4 T cells, and three principal components for ancestry. RESULTS: Minor alleles in SNPs rs77122854 (SDC3), rs73971695, rs79336862 (ITGA6), rs57528020, rs201337456, rs11987725 (SDC2), rs115880588, rs115738853, and rs9301825 (GPC5) were associated with increased odds of both CIN3+ and HSIL, whereas, rs35927186 (GPC5) was found to decrease the odds for both outcomes (P value ≤ 0.01). Among those infected with Alpha-9 HPV types, rs722377 (SDC3), rs16860468, rs2356798 (ITGA6), rs11987725 (SDC2), and rs3848051 (GPC5) were associated with increased odds of both precancer outcomes. CONCLUSIONS: Polymorphisms in genes that encode binding receptors for HPV cell entry may play a role in cervical precancer progression. IMPACT: Our findings are hypothesis generating and support further exploration of mechanisms of HPV entry genes that may help prevent progression to cervical precancer.


Asunto(s)
Infecciones por Papillomavirus , Displasia del Cuello del Útero , Neoplasias del Cuello Uterino , Femenino , Humanos , Virus del Papiloma Humano , Estudios de Cohortes , Estudios de Casos y Controles , Papillomaviridae/genética , Polimorfismo de Nucleótido Simple , Glipicanos/genética
14.
Echocardiography ; 29(2): 131-9, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22044673

RESUMEN

PURPOSE: Impaired pulmonary function has been associated with increased cardiovascular disease incidence and mortality. The objective of this study was to investigate associations between pulmonary function and left ventricular (LV) mass. METHODS: Participants were African American women (n = 1,069) and men (n = 555) aged 49-73 years, from the Atherosclerosis Risk in Communities study. Mean pulmonary function values at the first (1987-1989) and second (1990-1992) examinations were used. Echocardiograms were performed at the third and early in the fourth examinations (1993-1996). Analysis of covariance and linear regression were used to assess associations. RESULTS: Mean levels of LV mass decreased with increasing quintiles of forced expiratory volume in one second (FEV(1) ) among female never smokers (P = 0.039). Forced vital capacity (FVC) showed stronger associations than FEV(1) with LV mass. Among men, LV mass was positively associated with FEV(1) among current and never smokers, and with FVC among never smokers. Additional analyses among never smokers revealed significant inverse associations between LV mass and FVC among women with waist-to-hip ratios of >0.85 and those with no history of diabetes. In contrast, significant positive associations between LV mass and FVC were seen among male never smokers with body mass index (BMI) of ≤24.9 kg/m(2) , waist-to-hip ratios of ≤0.95, no history of hypertension or diabetes, and ≤60 years old. BMI and waist-to-hip ratio significantly modified associations among men. CONCLUSIONS: Among never smokers, LV mass and pulmonary function were inversely associated among women and positively associated among men. Further studies are warranted.


Asunto(s)
Aterosclerosis/etnología , Negro o Afroamericano/estadística & datos numéricos , Ventrículos Cardíacos/diagnóstico por imagen , Pulmón/fisiopatología , Anciano , Análisis de Varianza , Composición Corporal , Femenino , Volumen Espiratorio Forzado , Humanos , Masculino , Persona de Mediana Edad , Variaciones Dependientes del Observador , Características de la Residencia , Pruebas de Función Respiratoria/métodos , Pruebas de Función Respiratoria/estadística & datos numéricos , Factores de Riesgo , Ultrasonografía , Capacidad Vital , Relación Cintura-Cadera
15.
Blood Press Monit ; 27(1): 50-54, 2022 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-34534134

RESUMEN

OBJECTIVES: Electronic health records (EHR) are a convenient data source for clinical trial recruitment and allow for inexpensive participant screening. However, EHR may lack pertinent screening variables. One strategy is to identify surrogate EHR variables which can predict the screening variable of interest. In this article, we use BMI to develop a prediction rule for arm circumference using data from the Atherosclerosis Risk in Communities (ARIC) Study. This work applies to EHR patient screening for clinical trials of hypertension. METHODS: We included 11 585 participants aged 52-75 years with BMI and arm circumference measured at ARIC follow-up visit 4 (1996-1998). We selected the following arm circumference cutpoints based on the American Heart Association recommendations for blood pressure (BP) cuffs: small adult (≤26 cm), adult (≤34 cm) and large adult (≤44 cm). We calculated the sensitivity and specificity of BMI values for predicting arm circumference using receiver operating characteristic curves. We report the BMI threshold that maximized Youden's Index for each arm circumference upper limit of a BP cuff. RESULTS: Participants' mean BMI and arm circumference were 28.8 ± 5.6 kg/m2 and 33.4 ± 4.3 cm, respectively. The BMI-arm circumference Pearson's correlation coefficient was 0.86. The BMI threshold for arm circumference≤26 cm was 23.0 kg/m2, arm circumference≤34 cm was 29.2 kg/m2 and arm circumference≤44 cm was 37.4 kg/m2. Only the BMI threshold for arm circumference≤34 cm varied significantly by sex. CONCLUSIONS: BMI predicts arm circumference with high sensitivity and specificity and can be an accurate surrogate variable for arm circumference. These findings are useful for participant screening for hypertension trials. Providers can use this information to counsel patients on appropriate cuff size for BP self-monitoring.


Asunto(s)
Brazo , Aterosclerosis , Adulto , Aterosclerosis/diagnóstico , Presión Sanguínea , Determinación de la Presión Sanguínea , Índice de Masa Corporal , Humanos
16.
JAMA Netw Open ; 5(9): e2231878, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-36107422

RESUMEN

Importance: Sparse data exist regarding the contributions of subclinical impairments in cardiovascular and noncardiovascular function to incident heart failure (HF) with reduced ejection fraction (HFrEF) and preserved ejection fraction (HFpEF) among Black US residents, limiting understanding of the etiology of HF subtypes. Objectives: To identify subclinical cardiovascular and noncardiovascular risk factors associated with HFrEF and HFpEF in Black US residents. Design, Setting, and Participants: This cohort study used cross-sectional and time-to-event analysis with data from the community-based Jackson Heart Study (JHS), a longitudinal cohort study with baseline data collected from 2000 to 2004 (visit 1) and 10-year follow-up for incident HF. Black US residents from the Jackson, Mississippi, metropolitan area enrolled in JHS; those with prevalent HF, with moderate or greater aortic or mitral valve diseases on visit 1, who died before 2005, and who had missing HF status on follow-up were excluded. The analysis included 4361 participants and was performed between June 2020 to August 2021. Exposures: Quantitative measures of cardiovascular (left ventricular mass index [LVMI], left ventricular ejection fraction [LVEF], left atrial [LA] diameter, and pulse pressure) and noncardiovascular (percent predicted forced expiration volume in 1 second [FEV1 (percent predicted)], estimated glomerular filtration rate (eGFR), waist circumference, and hemoglobin A1c [HbA1c] level) organ function. Main Outcomes and Measures: Incident HF, HFrEF, and HFpEF over 10-year follow-up. Results: The 4361 participants had a mean (SD) age of 54 (13); 2776 (64%) were women; and there were 163 HFpEF and 146 HFrEF events. In multivariable models incorporating measures reflecting each organ system, factors associated with incident HFpEF included greater LA diameter (hazard ratio [HR], 1.23; 95% CI, 1.03-1.47; P = .02), higher pulse pressure (HR, 1.23; 95% CI, 1.05-1.44; P = .009), lower FEV1 (percent predicted) (HR, 1.22; 95% CI, 1.04-1.43; P = .02), lower eGFR (HR, 1.43; 95% CI, 1.19-1.72; P < .001), higher HbA1c level (HR, 1.25; 95% CI, 1.07-1.45; P = .005), and higher waist circumference (HR, 1.41; 95% CI, 1.18-1.69; P < .001). Factors associated with incident HFrEF included greater LVMI (HR, 1.25; 1.07-1.46; P = .005), lower LVEF (HR, 1.65; 95% CI, 1.42-1.91; P < .001), lower FEV1 (percent predicted) (HR, 1.19; 95% CI, 1.00-1.42; P = .047), and lower eGFR (HR, 1.27; 95% CI, 1.04-1.55; P = .02). Conclusions and Relevance: In this community-based cohort study of Black US residents, subclinical impairments in cardiovascular and noncardiovascular organ function were differentially associated with risk of incident HFpEF and HFrEF.


Asunto(s)
Insuficiencia Cardíaca , Adulto , Estudios de Cohortes , Estudios Transversales , Femenino , Hemoglobina Glucada , Insuficiencia Cardíaca/epidemiología , Humanos , Estudios Longitudinales , Masculino , Factores de Riesgo , Volumen Sistólico , Función Ventricular Izquierda
17.
Front Cardiovasc Med ; 9: 848768, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35665255

RESUMEN

Low socioeconomic status (SES) and living in a disadvantaged neighborhood are associated with poor cardiovascular health. Multiple lines of evidence have linked DNA methylation to both cardiovascular risk factors and social disadvantage indicators. However, limited research has investigated the role of DNA methylation in mediating the associations of individual- and neighborhood-level disadvantage with multiple cardiovascular risk factors in large, multi-ethnic, population-based cohorts. We examined whether disadvantage at the individual level (childhood and adult SES) and neighborhood level (summary neighborhood SES as assessed by Census data and social environment as assessed by perceptions of aesthetic quality, safety, and social cohesion) were associated with 11 cardiovascular risk factors including measures of obesity, diabetes, lipids, and hypertension in 1,154 participants from the Multi-Ethnic Study of Atherosclerosis (MESA). For significant associations, we conducted epigenome-wide mediation analysis to identify methylation sites mediating the relationship between individual/neighborhood disadvantage and cardiovascular risk factors using the JT-Comp method that assesses sparse mediation effects under a composite null hypothesis. In models adjusting for age, sex, race/ethnicity, smoking, medication use, and genetic principal components of ancestry, epigenetic mediation was detected for the associations of adult SES with body mass index (BMI), insulin, and high-density lipoprotein cholesterol (HDL-C), as well as for the association between neighborhood socioeconomic disadvantage and HDL-C at FDR q < 0.05. The 410 CpG mediators identified for the SES-BMI association were enriched for CpGs associated with gene expression (expression quantitative trait methylation loci, or eQTMs), and corresponding genes were enriched in antigen processing and presentation pathways. For cardiovascular risk factors other than BMI, most of the epigenetic mediators lost significance after controlling for BMI. However, 43 methylation sites showed evidence of mediating the neighborhood socioeconomic disadvantage and HDL-C association after BMI adjustment. The identified mediators were enriched for eQTMs, and corresponding genes were enriched in inflammatory and apoptotic pathways. Our findings support the hypothesis that DNA methylation acts as a mediator between individual- and neighborhood-level disadvantage and cardiovascular risk factors, and shed light on the potential underlying epigenetic pathways. Future studies are needed to fully elucidate the biological mechanisms that link social disadvantage to poor cardiovascular health.

18.
Mayo Clin Proc ; 97(1): 78-87, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34565606

RESUMEN

OBJECTIVE: To evaluate the relationship between hypertensive diseases in pregnancy and kidney function later in life. METHODS: We evaluated measured glomerular filtration rate (mGFR) using iothalamate urinary clearance in 725 women of the Genetic Epidemiology Network of Arteriopathy (GENOA) study. Women were classified by self-report as nulliparous (n=62), a history of normotensive pregnancies (n=544), a history of hypertensive pregnancies (n=102), or a history of pre-eclampsia (n=17). We compared adjusted associations among these four groups with mGFR using generalized estimating equations to account for familial clustering. Chronic kidney disease (CKD) was defined as mGFR of less than 60 mL/min per 1.73 m2 or urinary albumin-creatinine ratio (UACR) greater than or equal to 30 mg/g. RESULTS: Among women with kidney function measurements (mean age, 59±9 years, 52.9% African American), those with a history of hypertensive pregnancy had lower mGFR (-4.66 ml/min per 1.73 m2; 95% CI, -9.12 to -0.20) compared with women with a history of normotensive pregnancies. Compared with women with a history of normotensive pregnancies, women with a history of hypertensive pregnancy also had higher odds of mGFR less than 60 ml/min per 1.73 m2 (odds ratio, 2.09; 95% CI, 1.21 to 3.60). Additionally, women with a history of hypertensive pregnancy had greater odds for chronic kidney disease (odds ratio, 4.89; 95% CI, 1.55 to 15.44), after adjusting for age, race, education, smoking history, hypertension, body mass index, and diabetes. CONCLUSION: A history of hypertension in pregnancy is an important prognostic risk factor for kidney disease. To our knowledge, this is the first and largest investigation showing the association between hypertensive diseases in pregnancy and subsequent kidney disease using mGFR in a large biracial cohort.


Asunto(s)
Hipertensión Inducida en el Embarazo/epidemiología , Insuficiencia Renal Crónica/epidemiología , Anciano , Causalidad , Estudios Transversales , Femenino , Tasa de Filtración Glomerular , Humanos , Persona de Mediana Edad , Embarazo , Medición de Riesgo , Encuestas y Cuestionarios
19.
Am J Epidemiol ; 174(7): 790-6, 2011 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-21841158

RESUMEN

Hypertension status among spouses is known to be concordant, but previous studies relied on history rather than direct measurement, and few data exist on treatment and control between spouses. The goal of this study was to estimate the spousal association of hypertension status, treatment, and control in adults. The authors identified and analyzed data on 4,500 pairs from the Atherosclerosis Risk in Communities (ARIC) cohort, which sampled middle-aged adults and their spouses in 1986-1989, with 3 follow-up visits 3 years apart. Generalized estimating equations were used in logistic regression analyses to calculate the odds ratio of a spouse's being hypertensive on the basis of the other spouse's hypertension status across 4 visits, adjusting for age, race, body mass index, smoking status, and sodium intake in both individuals. There are marginally increased odds of hypertension for spouses married to someone with hypertension (odds ratio (OR) = 1.15, 95% confidence interval (CI): 1.06, 1.25). Treatment was positively associated between spouses (OR = 1.35, 95% CI: 1.10, 1.67). Control was suggestive of an association, although it was not statistically significant (OR = 1.21, 95% CI: 0.93, 1.56). In middle-aged adults, hypertension status and treatment were moderately associated between spouses after controlling for shared environment. Physicians may target hypertension education and prevention to spouses as a pair rather than as 2 separate patients.


Asunto(s)
Hipertensión/epidemiología , Matrimonio/estadística & datos numéricos , Esposos/estadística & datos numéricos , Adulto , Anciano , Antihipertensivos/uso terapéutico , Presión Sanguínea , Estudios de Cohortes , Estudios de Seguimiento , Humanos , Hipertensión/tratamiento farmacológico , Hipertensión/psicología , Modelos Logísticos , Matrimonio/psicología , Persona de Mediana Edad , Factores de Riesgo , Esposos/psicología , Estados Unidos/epidemiología
20.
Clin Pract ; 11(2): 322-326, 2021 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-34063944

RESUMEN

Upper cross syndrome (UCS) is a condition caused from prolonged poor posture manifesting as thoracic hyperkyphosis with forward head and shoulder postures. It has been associated with several other secondary conditions, causing pain and discomfort to those with the condition. This is a case report of a 35-year-old female presenting to clinic with a sharp pain in the neck, upper back, and sternum area for 4 weeks and gastroesophageal reflux disease (GERD). She had been working at home for several months after the shelter at home order was issued. Following evaluation and corrective treatment with cervical adjustment and soft tissue massage, the patient's posture improved and reported full pain resolution. Her symptoms of GERD concurrently resolved as well. She continued to receive chiropractic adjustment two times per month for correcting spinal misalignment. Full restoration of posture was attained on the full spine radiographs at 9 months follow-up. The patient remained symptom-free at 12 months follow-up. Manipulative and preventive therapies aimed at treating and preventing UCS should be more widely adopted to prevent secondary conditions.

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