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1.
Nicotine Tob Res ; 25(4): 781-787, 2023 03 22.
Artículo en Inglés | MEDLINE | ID: mdl-36169563

RESUMEN

INTRODUCTION: Black communities are targeted by more cigarette advertisements than White communities and racial discrimination among Black people is related to cigarette use. However, little is known about these factors with non-cigarette tobacco product use among Black adults. Therefore, this study assessed the association of non-cigarette advertisement exposure and racial discrimination with use of non-cigarette tobacco products among Black adults. AIMS AND METHODS: Black adults (n = 533) from The Family and Community Health Study in 2016 were asked if they had seen advertisements for e-cigarettes, snus pouches, filtered cigars, large cigars, cigarillos, dissolvable tobacco, smokeless tobacco, hookah, and tobacco pipe and if they used these in the past month. For products with the highest past month use and significant correlations with advertisement exposure, separate logistic regression models were performed that evaluated the association between advertisement exposure, racial discrimination, and non-cigarette tobacco product use while controlling for cigarette use, sex, socioeconomic status, and age. RESULTS: Use of cigarillos, large cigars, and hookah were higher than other non-cigarette tobacco products assessed. Logistic regressions revealed that more advertisement exposure in the past month was associated with higher odds of using cigarillos, large cigars, and hookah (p < .01). More experiences of racial discrimination were associated with past month cigarillo use, but not hookah or large cigars (p < .01). CONCLUSIONS: Non-cigarette tobacco advertisement exposure was associated with the use of non-cigarette tobacco products. Experiences of racial discrimination were associated with the most used non-cigarette tobacco product among Black adults, cigarillos. IMPLICATIONS: This is the first time that a specific type of cigar (ie cigarillos) has been associated with experiences of racial discrimination among Black adults. Efforts to reduce non-cigarette tobacco marketing and eradicate exposure to racial discrimination among Black adults may aid in eliminating tobacco-related health disparities.


Asunto(s)
Publicidad , Sistemas Electrónicos de Liberación de Nicotina , Racismo , Productos de Tabaco , Uso de Tabaco , Tabaco sin Humo , Adulto , Humanos , Estados Unidos , Negro o Afroamericano
2.
Dev Psychopathol ; 34(2): 689-703, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34924087

RESUMEN

We expand upon prior work (Gibbons et al., ) relating childhood stressor effects, particularly harsh childhood environments, to risky behavior and ultimately physical health by adding longer-term outcomes - deoxyribonucleic acid (DNA) methylation-based measures of accelerated aging (DNAm-aging). Further, following work on the effects of early exposure to danger (McLaughlin et al., ), we also identify an additional pathway from harsh childhood environments to DNAm-aging that we label the danger/FKBP5 pathway, which includes early exposure to dangerous community conditions that are thought to impact glucocorticoid regulation and pro-inflammatory mechanisms. Because different DNAm-aging indices provide different windows on accelerated aging, we contrast effects on early indices of DNAm-aging based on chronological age with later indices that focused on predicting biological outcomes. We utilize data from Family and Community Health Study participants (N = 449) from age 10 to 29. We find that harshness influences parenting, which, in turn, influences accelerated DNAm-aging through the risky cognitions and substance use (i.e., behavioral) pathway outlined by Gibbons et al. (). Harshness is also associated with increased exposure to threat/danger, which, in turn, leads to accelerated DNAm-aging through effects on FKBP5 activity and enhanced pro-inflammatory tendencies (i.e., the danger/FKBP5 pathway).


Asunto(s)
Experiencias Adversas de la Infancia , Metilación de ADN , Animales , Humanos , Adulto Joven , Niño , Adolescente , Adulto , Hylobates/genética , Envejecimiento/genética , ADN , Epigénesis Genética
3.
Stress ; 22(6): 632-639, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31010377

RESUMEN

Women and children belonging to a racial/ethnic minority bear a disproportionate burden of psychosocial stress that increases their vulnerability to adverse health outcomes. Hair cortisol has been rapidly advanced as a biomarker of the intensity and course of the stress response over time and may provide an opportunity to increase our understanding of the role of psychological stress in health. However, research on the link between hair cortisol levels and subjective measures of maternal and child stress among low-income and minority individuals is limited. The goal of this study was to examine the association between stress and hair cortisol in low income, minority women and children who experience disproportionate exposure to chronic stress. A convenience sample of 54 minority mother/child dyads from a busy primary care clinic in the second poorest medium-sized city in the US participated in the study. Mothers self-reported perceived stress, social support, household characteristics and other demographic factors, and their children (ages 7-14 years) reported on the perceived level of safety in their neighborhood and exposure to violence as markers of child stress. Three-centimeter hair samples were collected from both mothers and children during the clinic visit, and hair cortisol levels were assessed via enzyme-linked immunosorbent assays. Linear regression models examined associations between maternal and child hair cortisol, and between hair cortisol and perceived stress level in women, and moderation by social support. Maternal hair cortisol was not significantly associated with mother's perceived stress. Maternal and child hair cortisol levels were positively associated (p = .007) but this association was not moderated by maternal perceived social support. These findings suggest that hair cortisol is strongly associated among this sample of minority mother-child dyads and is not moderated by social support.


Asunto(s)
Cabello/metabolismo , Hidrocortisona/metabolismo , Madres/psicología , Apoyo Social , Adolescente , Adulto , Biomarcadores , Niño , Etnicidad , Femenino , Humanos , Hidrocortisona/análisis , Masculino , Grupos Minoritarios , Pobreza , Características de la Residencia , Estrés Psicológico/psicología
4.
Alcohol Clin Exp Res ; 42(7): 1291-1303, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29878386

RESUMEN

BACKGROUND: We examined how mothers' protective parenting and alcohol use influenced changes in offspring's heavy drinking among a sample of African American youth. The conceptual model also tested indirect effects of mothers' behaviors, through changes in the youths' social images (i.e., prototypes) of heavy drinkers, derived from the prototype willingness (PW) model. METHODS: Participants were 686 emerging adults (55% female) from the Family and Community Health Study (FACHS), an ongoing prospective study of African American families. Three waves of FACHS data were used as follows: T3 during 10th grade (M age = 16.3 years), T4 shortly after high school (M age = 19.4 years), and T5 3 years later (M age = 22.1 years). Mothers' self-reports of protective parenting and alcohol use were assessed at T4. Two separate path models tested the study hypotheses. The first model specified direct and indirect effects of mothers' protective parenting and alcohol use. The second model added interaction terms between the protective parenting behaviors and mothers' alcohol use. The analyses were first conducted using the full sample and then repeated separately for female and male participants. RESULTS: Maternal alcohol use had a positive and direct effect on offspring's alcohol use. Mothers' endorsement of alcohol-related rules inhibited normative increases in the favorability of the offspring's social image of heavy drinkers (prototype) while her warmth was positively related to these increases. Maternal alcohol use amplified the positive association between mothers' warmth and the daughters' increased drinking. For sons, maternal alcohol use increased the positive association between alcohol-related rules and increased prototype favorability. CONCLUSIONS: Results indicated clear gender differences in how mothers' behaviors influence her offspring's alcohol use during the transition to emerging adulthood. Interventions that target culturally specific risk and protective factors within the family environment are needed to reduce health disparities among this vulnerable population of youth.


Asunto(s)
Consumo de Bebidas Alcohólicas/psicología , Negro o Afroamericano/psicología , Relaciones Madre-Hijo/psicología , Madres/psicología , Responsabilidad Parental/psicología , Prueba de Estudio Conceptual , Adolescente , Factores de Edad , Consumo de Bebidas Alcohólicas/prevención & control , Consumo de Bebidas Alcohólicas/tendencias , Femenino , Humanos , Estudios Longitudinales , Masculino , Responsabilidad Parental/tendencias , Estudios Prospectivos , Adulto Joven
5.
Dev Psychopathol ; 30(5): 1629-1647, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30451139

RESUMEN

We examined the prospective relations between a cultural risk factor, perceived racial discrimination (PRD), and subsequent negative affect and health behavior (smoking) in a panel of 889 African American children (part of the Family and Community Health Study). Cultural moderators (protective factors) of these relations were also examined. PRD was assessed six times from ages 10.5 (Wave 1) to 24.5 (Wave 6), and negative affect (anger and depressive symptoms) was assessed at Wave 2 (age 12.5) and Wave 6 (age 24.5). Results indicated that Wave 1 PRD predicted Wave 6 smoking, controlling for multiple factors related to smoking and/or PRD, including smoking at age 15.5. Structural equation models indicated that these relations between Wave 1 PRD and smoking were mediated by both early and later negative affect. The models also indicated that Wave 1 PRD had a direct impact on Wave 6 anger (assessed 14 years later), controlling for the effects of PRD on early affect. Cultural socialization was associated with lower rates of adolescent smoking, and it buffered the relation between PRD and Wave 6 anger. The impact of early PRD experiences along with suggestions for culturally informed interventions and preventive interventions that might buffer against early PRD effects are discussed.


Asunto(s)
Ira , Negro o Afroamericano/estadística & datos numéricos , Depresión/epidemiología , Racismo/estadística & datos numéricos , Fumar/epidemiología , Adolescente , Afecto , Negro o Afroamericano/psicología , Niño , Depresión/etnología , Depresión/psicología , Femenino , Humanos , Masculino , Estudios Prospectivos , Factores Protectores , Racismo/psicología , Factores de Riesgo , Fumar/etnología , Fumar/psicología , Socialización , Estados Unidos/epidemiología , Adulto Joven
6.
J Behav Med ; 41(2): 195-207, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-28905204

RESUMEN

Affirming one's racial identity may help protect against the harmful effects of racial exclusion on substance use cognitions. This study examined whether racial versus self-affirmation (vs. no affirmation) buffers against the effects of racial exclusion on substance use willingness and substance use word associations in Black young adults. It also examined anger as a potential mediator of these effects. After being included, or racially excluded by White peers, participants were assigned to a writing task: self-affirmation, racial-affirmation, or describing their sleep routine (neutral). Racial exclusion predicted greater perceived discrimination and anger. Excluded participants who engaged in racial-affirmation reported reduced perceived discrimination, anger, and fewer substance use cognitions compared to the neutral writing group. This relation between racial-affirmation and lower substance use willingness was mediated by reduced perceived discrimination and anger. Findings suggest racial-affirmation is protective against racial exclusion and, more generally, that ethnic based approaches to minority substance use prevention may have particular potential.


Asunto(s)
Afecto , Negro o Afroamericano/psicología , Grupo Paritario , Racismo/psicología , Autoimagen , Adolescente , Ira , Femenino , Humanos , Masculino , Grupos Minoritarios , Trastornos Relacionados con Sustancias/etnología , Trastornos Relacionados con Sustancias/psicología , Adulto Joven
7.
Pers Individ Dif ; 88: 120-124, 2016 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-26451065

RESUMEN

We modeled the effects of harsh environments in childhood on adjustment in early emerging adulthood, through parenting style and the development of fast Life History Strategies (LHS; risky beliefs and behaviors) in adolescence. Participants were from the Oregon Youth Substance Use Project (N = 988; 85.7% White). Five cohorts of children in Grades 1-5 at recruitment were assessed through one-year post high school. Greater environmental harshness (neighborhood quality and family poverty) in Grades 1-6 predicted less parental investment at Grade 8. This parenting style was related to the development of fast LHS (favorable beliefs about substance users and willingness to use substances at Grade 9, and engagement in substance use and risky sexual behavior assessed across Grades 10-12). The indirect path from harsh environment through parenting and LHS to (less) psychological adjustment (indicated by lower life satisfaction, self-rated health, trait sociability, and higher depression) was significant (indirect effect -.024, p = .011, 95% CI = -.043, -.006.). This chain of development was comparable to that found by Gibbons et al. (2012) for an African-American sample that, unlike the present study, included perceived racial discrimination in the assessment of harsh environment.

8.
J Soc Psychol ; 155(2): 143-62, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25329242

RESUMEN

ABSTRACT. This article concerns the construct of lay situationism-an individual's belief in the importance of a behavior's context. Study 1 identified a 13-item Situationism Scale, which demonstrated good reliability and validity. In particular, higher situationism was associated with greater situation-control (strategies to manipulate the environment in order to avoid temptation). Subsequent laboratory studies indicated that people higher on the situationism subscales used greater situation-control by sitting farther from junk food (Study 2) and choosing to drink non-alcoholic beverages before a cognitive task (Study 3). Overall, findings provide preliminary support for the psychometric validity and predictive utility of the Situationism Scale and offer this individual difference construct as a means to expand self-regulation theory.


Asunto(s)
Concienciación/fisiología , Individualidad , Control Interno-Externo , Psicometría/instrumentación , Encuestas y Cuestionarios/normas , Adolescente , Adulto , Femenino , Humanos , Masculino , Adulto Joven
9.
J Behav Med ; 37(3): 553-63, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23624642

RESUMEN

This study examined the impact of ultraviolet (UV) photography, cognition versus affect, and age on women's sun-related cognitions and a proxy measure of sun protection behavior. Participants (N = 114) were recruited via public advertisements and came to the lab to view a photo showing their UV damage. In addition, some participants received instructions to focus on either their thoughts (cognition) or feelings (affect) about their photograph before completing the survey. Women in the affect condition reported the lowest perceived vulnerability to skin cancer and highest absent/exempt beliefs (beliefs that one is unlikely to develop skin cancer if she hasn't already). Condition by age interactions showed that, among those in the cognition and control (no instructions) conditions, older women reported higher perceived vulnerability and lower absent/exempt beliefs, and took more sunscreen than younger women. However, older women reported higher absent/exempt beliefs and higher sun-risk willingness than younger women in the affect condition.


Asunto(s)
Conductas Relacionadas con la Salud , Conocimientos, Actitudes y Práctica en Salud , Neoplasias Cutáneas/psicología , Rayos Ultravioleta/efectos adversos , Adulto , Afecto/fisiología , Factores de Edad , Anciano , Cognición/fisiología , Femenino , Humanos , Persona de Mediana Edad , Distribución Aleatoria , Asunción de Riesgos , Neoplasias Cutáneas/prevención & control , Protectores Solares/uso terapéutico
10.
J Community Health ; 39(2): 274-84, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24150246

RESUMEN

The purpose of this study was to examine factors associated with human papillomavirus (HPV) knowledge and awareness, and HPV vaccination among White and Hispanic males and females. Differences in HPV knowledge, sources of information, vaccine awareness, vaccination status, and interest in vaccination were examined. A community sample was recruited from local health care clinics in a medium sized Midwestern city between May 2010 and December 2011. Participants (N = 507) were White (n = 243) and Hispanic, males (n = 202) and females between the ages of 15-30. Results indicate that White and female participants were significantly more likely to have heard of HPV, have higher levels of HPV knowledge, have been diagnosed with HPV, and be aware of the HPV vaccine for women. White and female participants were also more likely to have heard of HPV from their physician and were significantly more interested in receiving the HPV vaccine in the future. There was no effect of ethnicity on interest in the vaccine per a doctor's recommendation, however. Findings suggest that Whites and females have greater levels of HPV awareness and knowledge and that, while Hispanic participants are less likely than White participants to be told about the HPV vaccine from their provider, they may be equally receptive to such a recommendation.


Asunto(s)
Conocimientos, Actitudes y Práctica en Salud , Hispánicos o Latinos/psicología , Infecciones por Papillomavirus/prevención & control , Vacunas contra Papillomavirus/administración & dosificación , Población Blanca/psicología , Adolescente , Adulto , Concienciación , Femenino , Humanos , Masculino , Infecciones por Papillomavirus/etnología , Factores Sexuales , Factores Socioeconómicos , Adulto Joven
11.
J Health Commun ; 18(11): 1279-92, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23941586

RESUMEN

Health interventions often draw attention to the risks associated with unhealthy choice but in the process produce a boomerang effect such that those targeted become more committed to risky behavior. In 2 studies designed to promote condom use among sexually active college students, the authors document strategies for highlighting risk while promoting healthy choices. Study 1 demonstrated that optimistic perceptions regarding the likelihood of contracting sexually transmitted diseases (STDs) can be counteracted by drawing attention to the emotional consequences of contracting STDs, instead of its likelihood. Rather than promoting condom use, however, this procedure generated a boomerang effect: It decreased commitment to using condoms, especially among high self-esteem individuals. Study 2 showed that this unwanted effect could be reversed when emotional vulnerability was paired with a self-affirmation. This finding suggests that there can be benefits to adding threatening content to health interventions, provided that the message also contains elements designed to protect feelings of self-worth.


Asunto(s)
Condones/estadística & datos numéricos , Comunicación en Salud/métodos , Promoción de la Salud/métodos , Asunción de Riesgos , Autoimagen , Conducta Sexual/psicología , Estudiantes/psicología , Adolescente , Femenino , Humanos , Masculino , Medición de Riesgo , Conducta Sexual/estadística & datos numéricos , Enfermedades de Transmisión Sexual/psicología , Estudiantes/estadística & datos numéricos , Universidades , Adulto Joven
12.
J Youth Adolesc ; 42(12): 1884-97, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23354420

RESUMEN

Despite the declining rate of teen pregnancies in the United States, academic and public health experts have expressed concern over the still relatively high rate of rapid repeat pregnancies among adolescents, particularly among minority youth. Using a sample of over 300 African American female adolescents, the current study used insights from the prototype/willingness model of adolescent risk behavior to explore this risk. More specifically, it assessed the relationship between entry into unwed motherhood during mid-to-late adolescence and changes in prototypes of unmarried pregnant teens. Further, it explored the extent to which these changing prototypes accounted for young mothers' later contraceptive expectations. We tested the possibility that social images were affected not only by personal experience (the birth of a child) but also by the family and community context in which this experience took place. The findings show that the early entrance into teen motherhood was associated with a shift toward more favorable prototypes of unwed pregnant teens, but that this was only the case for young mothers in disadvantaged contexts. Given this, prototype changes helped to explain the link between teen motherhood and contraceptive expectations only for those in disadvantaged contexts. We discuss these findings in terms of their practical and theoretical implications.


Asunto(s)
Conducta del Adolescente/psicología , Negro o Afroamericano , Anticoncepción/psicología , Madres/psicología , Embarazo en Adolescencia/psicología , Conducta Sexual/psicología , Conducta Social , Adolescente , Femenino , Humanos , Estudios Longitudinales , Embarazo , Asunción de Riesgos , Estados Unidos
13.
Soc Sci Med ; 316: 115225, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-35931591

RESUMEN

OBJECTIVE: The objective of this study was to investigate racial centrality as a mediator of the association between Black adolescents' racial discrimination experiences and their cigarette use in early adulthood. METHODS: The data were drawn from the Family and Community Health Study, which is a longitudinal study of Black American families that began in 1996. Families with a child in 5th grade who identified as Black or African American were recruited from Iowa and Georgia. At baseline, there were 838 Black American children. Hierarchical regressions and bootstrap tests of the indirect effects were used to investigate whether racial centrality at Wave 5 (mean age = 21.6 years) mediated the association between adolescent discrimination at Waves 1-4 (mean ages = 10.5-18.8 years) and adult cigarette use at wave 6 (mean age = 23.5 years). RESULTS: Bivariate associations indicated racial discrimination was significantly associated positively with racial centrality and adult use of cigarettes. Racial centrality indirectly affected the association between racial discrimination and cigarette use such that greater racial centrality was associated with less cigarette use. Further, racial centrality predicted cessation among those who had smoked. Finally, racial centrality was higher among those who never smoked and those who had smoked and quit, relative to those who currently smoke. CONCLUSIONS: These findings suggest that having strong Black racial centrality is a mediator that reduces the risk of cigarette use among young adults who experience racial discrimination in adolescence. In addition, racial centrality also predicts smoking cessation among young Black Americans who smoke. Translational implications of these findings are discussed.


Asunto(s)
Fumar Cigarrillos , Racismo , Adulto Joven , Niño , Humanos , Adolescente , Adulto , Negro o Afroamericano , Estudios Longitudinales , Grupos Raciales
14.
J Subst Use Addict Treat ; 155: 208985, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-36822270

RESUMEN

INTRODUCTION: Black people are disproportionately burdened by tobacco-related diseases and are less successful at cigarette cessation with current treatments. We know little about the effectiveness of e-cigarettes as a smoking cessation method compared to currently approved methods in Black adults who smoke. Many Black adults report experiencing racial discrimination in health care, but if discrimination is related to utilization of smoking cessation aids including e-cigarettes and success with smoking cessation in this population is unclear. Therefore, this exploratory study aimed to understand how negative experiences and racial discrimination in health care influence use of e-cigarettes for cigarette cessation and success with cigarette cessation among Black adults. METHODS: The study interviewed 201 Black adults who used cigarettes and tried to quit in their lifetime from the Family and Community Health Study in 2016. The study asked if they had tried and successfully quit cigarettes with e-cigarettes vs. other methods (support groups, medications, nicotine replacement therapies, call-in help lines, cold turkey [quit on their own], counseling) and asked about their negative experiences and racial discrimination in health care. We performed separate logistic regressions that evaluated the association of negative experiences and racial discrimination in health care with 1) use of e-cigarettes for cigarette cessation vs. other quitting methods and 2) success with cigarette cessation using any method among Black adults while controlling for age, sex, socioeconomic status, health insurance status, and age of onset of cigarette use. RESULTS: More reported negative experiences and racial discrimination in health care were associated with ever trying to quit with e-cigarettes compared to other methods (OR:1.75, 95 % CI [1.05-2.91]), but negative experiences and racial discrimination in health care were not associated with cigarette quitting success. Interestingly, trying e-cigarettes was associated with being less successful at quitting compared to using other methods to quit smoking (OR: 0.40, 95 % CI [0.20, 0.81]). CONCLUSIONS: These results suggest that educating health care professionals that anticipated discrimination in health care settings may be driving Black adults who smoke to engage in non-evidence-based smoking cessation practices, such as e-cigarettes instead of those that are evidence-based, and may be more effective in this population.


Asunto(s)
Sistemas Electrónicos de Liberación de Nicotina , Racismo , Cese del Hábito de Fumar , Adulto , Humanos , Atención a la Salud , Cese del Hábito de Fumar/métodos , Dispositivos para Dejar de Fumar Tabaco , Negro o Afroamericano
15.
Psychol Sci ; 23(9): 984-93, 2012 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-22810165

RESUMEN

Early sexual debut is associated with risky sexual behavior and an increased risk of unplanned pregnancy and sexually transmitted infections later in life. The relations among early movie sexual exposure (MSE), sexual debut, and risky sexual behavior in adulthood (i.e., multiple sexual partners and inconsistent condom use) were examined in a longitudinal study of U.S. adolescents. MSE was measured using the Beach method, a comprehensive procedure for media content coding. Controlling for characteristics of adolescents and their families, analyses showed that MSE predicted age of sexual debut, both directly and indirectly through changes in sensation seeking. MSE also predicted engagement in risky sexual behaviors both directly and indirectly via early sexual debut. These results suggest that MSE may promote sexual risk taking both by modifying sexual behavior and by accelerating the normal rise in sensation seeking during adolescence.


Asunto(s)
Películas Cinematográficas/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Sexo Inseguro/estadística & datos numéricos , Adolescente , Conducta del Adolescente/psicología , Factores de Edad , Niño , Femenino , Humanos , Estudios Longitudinales , Masculino , Factores Sexuales , Conducta Sexual/psicología , Sexo Inseguro/psicología , Adulto Joven
16.
Prev Sci ; 13(1): 55-63, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21901429

RESUMEN

This study of youth smoking onset aims to replicate previously published media moderation effects for race/ethnicity in a national longitudinal multiethnic sample of U.S. adolescents. Previous research has demonstrated that associations between media and smoking during adolescence are greater for Whites than Hispanics or Blacks, and for youth living in non-smoking families. In this study, changes in smoking status over 24 months were assessed among 4,511 baseline never-smokers. The incidence of smoking onset was 14.3% by 24 months with no differences by race/ethnicity. Blacks had higher exposure to movie smoking and overall television viewing compared with Whites and Hispanics. Whites responded to movie smoking regardless of parent smoking but more strongly if their parents were non-smokers. In contrast, Black adolescents showed little behavioral response to any media, regardless of parent smoking. Hispanic adolescents responded only to TV viewing and only when their parents did not smoke. In an analysis assessing the influence of the race of smoking characters on smoking behavior of White and Black adolescents, Whites responded to both White and Black movie character smoking, whereas Blacks responded only to smoking by Black movie characters. Taken as a whole, the findings replicate and extend previous findings, suggesting media factors are more influential among adolescents at low to moderate overall risk for smoking. We draw analogies between these low-moderate risk adolescents and "swing voters" in national elections, suggesting that media effects are more apt to influence an adolescent in the middle of the risk spectrum, compared with his peers at either end of it.


Asunto(s)
Etnicidad , Medios de Comunicación de Masas , Relaciones Padres-Hijo , Responsabilidad Parental/psicología , Asunción de Riesgos , Fumar/epidemiología , Adolescente , Factores de Edad , Intervalos de Confianza , Toma de Decisiones , Femenino , Humanos , Masculino , Psicología del Adolescente , Psicometría , Fumar/etnología , Fumar/psicología , Encuestas y Cuestionarios , Factores de Tiempo , Estados Unidos/epidemiología
17.
Am J Med Genet B Neuropsychiatr Genet ; 159B(2): 141-51, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22232023

RESUMEN

Smoking is associated with a wide variety of adverse health outcomes including cancer, chronic obstructive pulmonary disease, diabetes, depression, and heart disease. Unfortunately, the molecular mechanisms through which these effects are conveyed are not clearly understood. To examine the potential role of epigenetic factors in these processes, we examined the relationship of smoking to genome wide methylation and gene expression using biomaterial from two independent samples, lymphoblast DNA and RNA (n = 119) and lung alveolar macrophage DNA (n = 19). We found that in both samples current smoking status was associated with significant changes in DNA methylation, in particular at the aryl hydrocarbon receptor repressor (AHRR), a known tumor suppressor. Both baseline DNA methylation and smoker associated DNA methylation signatures at AHRR were highly correlated (r = 0.94 and 0.45, respectively). DNA methylation at the most differentially methylated AHRR CpG residue in both samples, cg0557592, was significantly associated with AHRR gene expression. Pathway analysis of lymphoblast data (genes with most significant methylation changes) demonstrated enrichment in protein kinase C pathways and in TGF beta signaling pathways. For alveolar macrophages, pathway analysis demonstrated alterations in inflammation-related processes. We conclude that smoking is associated with functionally significant genome wide changes in DNA methylation in both lymphoblasts and pulmonary macrophages and that further integrated investigations of these epigenetic effects of smoking on carcinogenesis and other related co-morbidities are indicated.


Asunto(s)
Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/genética , Metilación de ADN , ADN/genética , Linfocitos/metabolismo , Macrófagos Alveolares/metabolismo , Regiones Promotoras Genéticas/genética , Proteínas Represoras/genética , Fumar/genética , Adulto , Biomarcadores/metabolismo , Estudios de Casos y Controles , Células Cultivadas , Femenino , Genoma Humano , Humanos , Persona de Mediana Edad
18.
Epigenetics ; 17(13): 1991-2005, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-35866695

RESUMEN

Smoking and Heavy Alcohol Consumption (HAC) are established risk factors for myriad complex disorders of ageing. Yet many prior studies of Epigenetic Ageing (EA) have shown only modest effects of smoking and drinking on accelerated ageing. One potential reason for this conundrum might be the reliance of some prior EA studies on self-reported substance use, which may be unreliable in many samples. To test whether novel, non-self-reported indices would show a stronger association of smoking and HAC to EA, we used methylation sensitive digital PCR (MSdPCR) and data from 437 African American subjects from Wave 7 of the Family and Community Health Study Offspring Cohort to examine the effects of subjective and objective measures of smoking and HAC on 7 indices of EA. Because of limited overall correlations between the various EA indices, we examined patterns of association separately for each index. Consistent with expectations, MSdPCR assessments of smoking and HAC, but not self-reported alcohol consumption, were strongly correlated with accelerated EA. MSdPCR assessments of smoking and HAC accounted for 57% of GrimAge acceleration and the shared variance in GrimAge and DunedinPOAM accelerated EA. We conclude that MSdPCR assessments of smoking and HAC are valuable tools for understanding EA, represent directly targetable conditions for the prevention of premature ageing, and substantially improve upon self-reported assessment of smoking and HAC.


Asunto(s)
Fumar , Productos de Tabaco , Humanos , Fumar/genética , Metilación de ADN , Envejecimiento/genética , Etanol , Epigénesis Genética , Consumo de Bebidas Alcohólicas/genética , Consumo de Bebidas Alcohólicas/efectos adversos
19.
Genes (Basel) ; 13(10)2022 10 18.
Artículo en Inglés | MEDLINE | ID: mdl-36292773

RESUMEN

Excessive alcohol consumption (EAC) has a generally accepted effect on morbidity and mortality, outcomes thought to be reflected in measures of epigenetic aging (EA). As the association of self-reported EAC with EA has not been consistent with these expectations, underscoring the need for readily employable non-self-report tools for accurately assessing and monitoring the contribution of EAC to accelerated EA, newly developed alcohol consumption DNA methylation indices, such as the Alcohol T Score (ATS) and Methyl DetectR (MDR), may be helpful. To test that hypothesis, we used these new indices along with the carbohydrate deficient transferrin (CDT), concurrent as well as past self-reports of EAC, and well-established measures of cigarette smoking to examine the relationship of EAC to both accelerated EA and immune cell counts in a cohort of 437 young Black American adults. We found that MDR, CDT, and ATS were intercorrelated, even after controlling for gender and cotinine effects. Correlations between EA and self-reported EAC were low or non-significant, replicating prior research, whereas correlations with non-self-report indices were significant and more substantial. Comparing non-self-report indices showed that the ATS predicted more than four times as much variance in EA, CDT4 cells and B-cells as for both the MDR and CDT, and better predicted indices of accelerated EA. We conclude that each of the non-self-report indices have differing predictive capacities with respect to key alcohol-related health outcomes, and that the ATS may be particularly useful for clinicians seeking to understand and prevent accelerated EA. The results also underscore the likelihood of substantial underestimates of problematic use when self-report is used and a reduction in correlations with EA and variance in cell-types.


Asunto(s)
Cotinina , Proteómica , Adulto , Humanos , Autoinforme , Consumo de Bebidas Alcohólicas/genética , Biomarcadores , Envejecimiento/genética , Epigénesis Genética , Carbohidratos
20.
Artículo en Inglés | MEDLINE | ID: mdl-36294002

RESUMEN

In a sample of 685 late middle-aged Black adults (M age at 2019 = 57.17 years), we examined the effects of loneliness and per capita income on accelerated aging using a newly developed DNA-methylation based index: the DunedinPACE. First, using linear, mixed effects regression in a growth curve framework, we found that change in DunedinPACE was dependent on age, with a linear model best fitting the data (b = 0.004, p < 0.001), indicating that average pace of change increased among older participants. A quadratic effect was also tested, but was non-significant. Beyond the effect of age, both change in loneliness (b = 0.009, p < 0.05) and change in per capita income (b = -0.016, p < 0.001) were significantly associated with change in DunedinPACE across an 11-year period, accounting for significant between person variability observed in the unconditional model. Including non-self-report indices of smoking and alcohol use did not reduce the association of loneliness or per capita income with DunedinPACE. However, change in smoking was strongly associated with change in DunedinPACE such that those reducing their smoking aged less rapidly than those continuing to smoke. In addition, both loneliness and per capita income were associated with DunedinPACE after controlling for variation in cell-types.


Asunto(s)
Renta , Soledad , Adulto , Persona de Mediana Edad , Humanos , Envejecimiento , Población Negra , ADN
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