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1.
Article in English | MEDLINE | ID: mdl-38771792

ABSTRACT

While ethnic racial identity (ERI) development is associated with a variety of psychological well-being outcomes, the mechanisms through which this association operates is yet to be fully explained. During adolescence, social belonging is a developmentally salient process that can play a key role in how ERI impacts well-being. We sought to explore the mediating role of belonging to peer networks in the association between ERI and self-esteem among Native American adolescents. In this cross-sectional, mediational study, we used survey data from 317 Native American students attending a reservation high school (46.9% female; M age =16). Students' levels of ERI development were measured by combining items from two scales pertaining to ethnic identity development and racial identity. We employed a structural equation modeling approach to explore the mediating role of peer belonging in the association between ERI and self-esteem. Results suggest that our 4-item index of peer belonging was an acceptable measure of this construct. Further, the significant indirect effect of peer belonging explains a notable portion (ß=.22, p ≤ .05) of the total effects of ERI on self- esteem (ß=.54, p ≤ .05). This finding suggests that higher levels of ERI achievement contribute to higher levels of peer belongingness, which in turn lead to improved self-esteem among students. Implications for research and practice are discussed.


Subject(s)
Peer Group , Self Concept , Social Identification , Humans , Female , Adolescent , Male , Cross-Sectional Studies , Indians, North American/ethnology
2.
Article in English | MEDLINE | ID: mdl-38771795

ABSTRACT

This study aimed to determine the prevalence of breastfeeding initiation and continuation at two months postpartum in American Indian (AI) mothers in South Dakota and to identify factors associated with breastfeeding. Using logistic regression, data from the South Dakota Pregnancy Risk Assessment Monitoring System were used to investigate the relationship between binary breastfeeding initiation and continuation outcomes and maternal behaviors and experiences including access to health care, safe sleep practices, ability to handle life events, depression, and sources of breastfeeding information. Higher odds of initiation were seen for factors including access to health care services, ability to handle life events, and sources of breastfeeding information, while lower odds were seen for factors including safe sleep. Higher odds of continuation were seen among mothers who reported not taking long to get over setbacks and among mothers who reported no postpartum depression, while lower odds of continuation were seen among mothers practicing safe sleep. Several modifiable factors were identified as reasons for stopping breastfeeding. This information about factors associated with higher odds of breastfeeding initiation and continuation at two months postpartum can be used to inform interventions, programs, and policies designed to support breastfeeding among AI women and to guide future research in this area.


Subject(s)
Breast Feeding , Indians, North American , Humans , Female , Adult , Breast Feeding/ethnology , South Dakota , Young Adult , Postpartum Period/ethnology , Adolescent
3.
Article in English | MEDLINE | ID: mdl-38771796

ABSTRACT

The primary purpose of this study was to 1) explore the relationship among the following variables: thoughts and feelings associated with historical loss, levels of acculturation, alcohol expectancies, and alcohol use among American Indian and Alaska Native (AI/AN) people, as well as to 2) explore predictive relationships among historical loss thoughts and feelings, alcohol expectancies, and alcohol use for AI/AN people within this sample. A convenience (community, non-clinical) sample of 188 AI/AN people completed an online survey, including questions related to alcohol use, alcohol expectancies, thoughts and feelings of historical loss, and acculturation experiences. Results indicated that gender and feelings of historical loss were the significant individual predictors of alcohol use and alcohol expectancies in a sample of AI/AN people. In addition, specific types of alcohol expectancies, when considered together, explained 24% of the variance in alcohol use experiences. Gender differences were noted in that AI/AN men were more likely than AI/AN women to engage in hazardous drinking and expected more feelings of social and physical pleasure as well as power and aggression as a result of drinking alcohol. Areas for further research were highlighted, with an emphasis on further research exploring the correlates and predictors of alcohol use and alcohol expectancies for community, non-clinical samples of AI/AN people, to further understand alcohol use motivation among AI/AN people.


Subject(s)
Acculturation , Alaska Natives , Alcohol Drinking , Indians, North American , Humans , Male , Female , Alaska Natives/psychology , Adult , Indians, North American/psychology , Alcohol Drinking/ethnology , Middle Aged , Young Adult , Adolescent , Aged
4.
Article in English | MEDLINE | ID: mdl-38771793

ABSTRACT

American Indian and Alaska Native (AI/AN) adolescents face health disparities resulting from historical traumas. There is a paucity of research focusing on mental health in AI/AN adolescents or the relationship between cultural connection and health. This project assesses the relationship between cultural identity and markers of mental health and well-being for AI/AN adolescents. Adolescents 12 to 18 years old from the Lumbee Tribe of North Carolina participated in this mixed-methods study. Phase 1, discussed in this manuscript, involved surveys using validated instruments to assess cultural connection and markers of mental health and well-being. Characteristics of the 122 AI/AN youth who completed the survey included: mean age 14.9 years (SD = 2.0); 61% (n = 75) assigned female at birth; 56% (n = 70) identified as female; and 4.1% (n = 5) identified as non-binary. Mean tribal affiliation (TA) and ethnic identity (EI) scores suggest strong cultural connection (TA: M = 3.1/5, SD = 0.6; EI: M = 3.4/5, SD = 0.9). Sleep quality (M = 2.63/5) and positive stress management (M = 2.06/5) were low. Bivariate and logistic regression demonstrated moderate positive correlations between EI and friendship, EI and emotional support, TA and friendship, and TA and emotional support. AI/AN adolescents in this sample have a moderate-strong connection with Native culture, marked by ethnic identity and tribal affiliation, and positive markers of mental health and well-being. Data from this study may be used for policy formulation to promote increased funding and programming addressing mental health for AI/AN youth.


Subject(s)
Indians, North American , Humans , Adolescent , Female , Male , Indians, North American/ethnology , Child , Mental Health/ethnology , North Carolina , Alaska Natives , Social Identification
5.
Article in English | MEDLINE | ID: mdl-38771794

ABSTRACT

American Indian and Alaska Native (AI/AN) youth use alcohol and drugs at a higher rate with earlier onset than the overall youth population in the United States. Youth interventions are needed to support the prevention and reduction of substance misuse-related issues. Connecting AI/AN children to their heritage through culturally grounded prevention programs has been shown to be more effective than programs designed for the general population. The objective of this formative evaluation was to provide community-informed updates for an existing culturally grounded substance use prevention program, The Beauty Way. This study was conducted in partnership with an AI/AN-serving community organization using key informant interviews and talking circles with community members and parents. Participants revealed the challenges and obstacles AI/AN youth face, the impact of cultural values, and activities which engage youth to prevent problematic substance use. Recommendations include the importance of 1) incorporating current challenges to behavioral health such as social media and vaping, 2) including cultural values and activities including land-based learning, and 3) creating a robust facilitator guide and hiring culturally sensitive program staff. These results generated recommendations to strengthen the cultural focus and application of The Beauty Way for AI/AN youth.


Subject(s)
Alaska Natives , Indians, North American , Substance-Related Disorders , Humans , Substance-Related Disorders/prevention & control , Substance-Related Disorders/ethnology , Adolescent , Indians, North American/ethnology , Female , Male , Culturally Competent Care , Young Adult , Adult
6.
Health Res Policy Syst ; 22(1): 57, 2024 May 13.
Article in English | MEDLINE | ID: mdl-38741196

ABSTRACT

BACKGROUND: Indigenous populations have increased risk of developing diabetes and experience poorer treatment outcomes than the general population. The FORGE AHEAD program partnered with First Nations communities across Canada to improve access to resources by developing community-driven primary healthcare models. METHODS: This was an economic assessment of FORGE AHEAD using a payer perspective. Costs of diabetes management and complications during the 18-month intervention were compared to the costs prior to intervention implementation. Cost-effectiveness of the program assessed incremental differences in cost and number of resources utilization events (pre and post). Primary outcome was all-cause hospitalizations. Secondary outcomes were specialist visits, clinic visits and community resource use. Data were obtained from a diabetes registry and published literature. Costs are expressed in 2023 Can$. RESULTS: Study population was ~ 60.5 years old; 57.2% female; median duration of diabetes of 8 years; 87.5% residing in non-isolated communities; 75% residing in communities < 5000 members. Total cost of implementation was $1,221,413.60 and cost/person $27.89. There was increase in the number and cost of hospitalizations visits from 8/$68,765.85 (pre period) to 243/$2,735,612.37. Specialist visits, clinic visits and community resource use followed this trend. CONCLUSION: Considering the low cost of intervention and increased care access, FORGE AHEAD represents a successful community-driven partnership resulting in improved access to resources.


Subject(s)
Cost-Benefit Analysis , Diabetes Mellitus , Health Services, Indigenous , Hospitalization , Primary Health Care , Humans , Primary Health Care/economics , Female , Male , Middle Aged , Hospitalization/economics , Canada , Health Services, Indigenous/economics , Diabetes Mellitus/therapy , Delivery of Health Care/economics , Aged , Health Services Accessibility , Health Care Costs , Indians, North American , Indigenous Peoples , Adult , Diabetes Complications/therapy , Diabetes Complications/economics
7.
Article in English | MEDLINE | ID: mdl-38673407

ABSTRACT

BACKGROUND: American Indian and Alaska Native people (AI/AN) bear a disproportionate burden of diabetes. Growing evidence shows significant associations between several acute diabetes complications and dementia among diabetes patients. However, little is known about these relationships among AI/AN adults. Here, we aim to investigate these associations among AI/AN adults. METHODS: This cross-sectional study extracted data from the Indian Health Service's (IHS) National Data Warehouse and related administrative databases. A total of 29,337 IHS actual users with diabetes who were 45+ years old during fiscal year 2013 were included. All-cause dementia and diabetes complications were identified using ICD-9 diagnostic codes. Negative binomial regression models were used to evaluate the associations of interest. RESULTS: Nearly 3% of AI/AN diabetes patients had a dementia diagnosis. After controlling for covariates, dementia was associated with a 94% higher rate of severe hypoglycemia (Incidence Rate Ratio [IRR = 1.94, 95% CI:1.50-2.51), 52% higher rate of severe hyperglycemia (IRR = 1.52, 95% CI, 1.11-2.08), and 92% higher rate of any acute complication (IRR = 1.92, 95% CI:1.53-2.41). CONCLUSIONS: AI/AN diabetes patients with dementia suffered from considerably higher rates of acute diabetes complications than their counterparts without dementia. The clinical management of patients with comorbid diabetes and dementia is particularly challenging and may require individualized treatment approaches.


Subject(s)
Alaska Natives , Dementia , Diabetes Complications , Indians, North American , Humans , Dementia/epidemiology , Male , Female , Middle Aged , Cross-Sectional Studies , Alaska Natives/statistics & numerical data , Aged , Indians, North American/statistics & numerical data , Diabetes Complications/epidemiology , United States/epidemiology , Aged, 80 and over
8.
PLoS One ; 19(4): e0302562, 2024.
Article in English | MEDLINE | ID: mdl-38687762

ABSTRACT

BACKGROUND: Significant health disparities exist among American Indian and Alaska Natives (AI/ANs), yet AI/ANs are substantially underrepresented within health-related research, including randomized controlled trials (RCTs). Although research has previously charted representation inequities, there is however a gap in the literature documenting best practice for recruitment techniques of AI/ANs into RCTs. Therefore, the aim of this review was to systematically gather and analyze the published literature to identify common strategies for AI/AN participant recruitment for RCTs in the US. METHODS: A scoping review methodology was engaged with a systematic search operationalized within relevant databases to February 19, 2022, with an additional updated search being carried out up until January 1, 2023: PubMed, Embase, Web of Science, PsycINFO, CINAHL, and Google Scholar. A two-stage article review process was engaged with double reviewers using Covidence review software. Content analysis was then carried out within the included articles by two reviewers using NVivo software to identify common categories within the data on the topic area. RESULTS: Our review identified forty-one relevant articles with the main categories of recruitment strategies being: 1) recruitment methods for AI/ANs into RCTs (passive advertising recruitment approaches, individual-level recruitment approaches, relational methods of recruitment); 2) recruitment personnel used within RCTs; and, 3) relevant recruitment setting. The majority of the included studies used a culturally relevant intervention, as well as a community-involved approach to operationalizing the research. CONCLUSION: Increasing AI/AN representation in RCTs is essential for generating evidence-based interventions that effectively address health disparities and improve health outcomes. Researchers and funding agencies should prioritize the engagement, inclusion, and leadership of AI/AN communities throughout the RCT research process. This includes early community involvement in study design, implementation of culturally tailored recruitment strategies, and dissemination of research findings in formats accessible to AI/AN communities.


Subject(s)
Alaska Natives , Patient Selection , Randomized Controlled Trials as Topic , Humans , American Indian or Alaska Native , Indians, North American
9.
CMAJ ; 196(15): E510-E523, 2024 Apr 21.
Article in English | MEDLINE | ID: mdl-38649167

ABSTRACT

BACKGROUND: Our previous research showed that, in Alberta, Canada, a higher proportion of visits to emergency departments and urgent care centres by First Nations patients ended in the patient leaving without being seen or against medical advice, compared with visits by non-First Nations patients. We sought to analyze whether these differences persisted after controlling for patient demographic and visit characteristics, and to explore reasons for leaving care. METHODS: We conducted a mixed-methods study, including a population-based retrospective cohort study for the period of April 2012 to March 2017 using provincial administrative data. We used multivariable logistic regression models to control for demographics, visit characteristics, and facility types. We evaluated models for subgroups of visits with pre-selected illnesses. We also conducted qualitative, in-person sharing circles, a focus group, and 1-on-1 telephone interviews with health directors, emergency care providers, and First Nations patients from 2019 to 2022, during which we reviewed the quantitative results of the cohort study and asked participants to comment on them. We descriptively categorized qualitative data related to reasons that First Nations patients leave care. RESULTS: Our quantitative analysis included 11 686 287 emergency department visits, of which 1 099 424 (9.4%) were by First Nations patients. Visits by First Nations patients were more likely to end with them leaving without being seen or against medical advice than those by non-First Nations patients (odds ratio 1.96, 95% confidence interval 1.94-1.98). Factors such as diagnosis, visit acuity, geography, or patient demographics other than First Nations status did not explain this finding. First Nations status was associated with greater odds of leaving without being seen or against medical advice in 9 of 10 disease categories or specific diagnoses. In our qualitative analysis, 64 participants discussed First Nations patients' experiences of racism, stereotyping, communication issues, transportation barriers, long waits, and being made to wait longer than others as reasons for leaving. INTERPRETATION: Emergency department visits by First Nations patients were more likely to end with them leaving without being seen or against medical advice than those by non-First Nations patients. As leaving early may delay needed care or interfere with continuity of care, providers and departments should work with local First Nations to develop and adopt strategies to retain First Nations patients in care.


Subject(s)
Emergency Service, Hospital , Humans , Alberta , Emergency Service, Hospital/statistics & numerical data , Female , Male , Adult , Retrospective Studies , Middle Aged , Adolescent , Young Adult , Aged , Child , Child, Preschool , Indians, North American/statistics & numerical data , Treatment Refusal/statistics & numerical data , Infant
10.
Health Aff (Millwood) ; 43(4): 567-572, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38560807

ABSTRACT

Among Indigenous women and birthing people, reported rates of perinatal mental health complications are consistently higher than in the general US population. However, perinatal mental health programs and interventions tend to focus on the general population and do not account for the unique experiences and worldviews of Indigenous Peoples. We highlight a collaborative strategy employed by a Montana nonprofit to engage Tribal communities in completing a statewide online resource guide designed to help pregnant and parenting families find resources, including mental health and substance use treatment options, within and beyond their local communities. Based on this strategy, cultural resources relevant to Tribal communities were added to the resource guide. Agencies committed to addressing perinatal mental health disparities among Indigenous populations should consider similar strategies to share power with Tribal communities and collaboratively create culturally congruent programs and interventions.


Subject(s)
Indians, North American , Substance-Related Disorders , Pregnancy , Humans , Female , Mental Health , Montana
11.
Prog Community Health Partnersh ; 18(1): 121-129, 2024.
Article in English | MEDLINE | ID: mdl-38661833

ABSTRACT

BACKGROUND: Three tribal communities in the Southwestern United States have a long-standing partnership with the Johns Hopkins Center for Indigenous Health (JHCIH). OBJECTIVES: In response to community concerns about obesity, three tribal communities and Johns Hopkins Center for Indigenous Health partnered to develop culturally relevant plans for a new program. METHODS: Using a "community visioning" process, a community advisory board (CAB) from each community identified opportunities, challenges, goals, and visions for their communities. The CABs consulted with experts in pediatrics, nutrition, food distribution, agricultural restoration, and community and school gardening. RESULTS: The CABs developed seven components for Feast for the Future: 1) Edible School Gardens; 2) Traditional Food-ways Education Program; 3) Community Gardens, Orchards, and Greenhouses; 4) Farmers Markets; 5) Farmers Workshops; 6) Family Gardens; and 7) a Mobile Grocery Store. CONCLUSIONS: A community-based participatory action research (CBPAR) process was critical to developing a culturally appropriate program that built on community strengths.


Subject(s)
Community-Based Participatory Research , Humans , Community-Institutional Relations , Health Promotion/organization & administration , Southwestern United States , Indians, North American , Program Development , Obesity/prevention & control
12.
J Health Care Poor Underserved ; 35(1): 246-263, 2024.
Article in English | MEDLINE | ID: mdl-38661869

ABSTRACT

Navigating health care and insurance systems presents significant challenges for American Indian (AI) Elders. Access to culturally congruent assistance with decision-making, scheduling, transportation, and communication can bridge the gap between AI Elders and health systems. This study uses qualitative interviews with professionals providing navigation services to American Indian Elders in a Southwestern state to understand the skills, experiences, and challenges involved in delivering this support. We conducted semi-structured interviews with 16 professionals providing navigation support to AI Elders between November 2018 and August 2020 and used a constant comparative approach to identify themes. Participants' descriptions of their work centered on the themes of (1) respect for Elders; (2) wide-ranging responsibilities; (3) acting as a trusted communicator; (4) developing trust; and (5) challenges to providing navigation support for AI Elders. Efforts to achieve health equity for AI Elders must include supporting individuals such as these within communities and advocating for a just health care system for American Indian people.


Subject(s)
Health Services Accessibility , Patient Navigation , Qualitative Research , Trust , Humans , Patient Navigation/organization & administration , Aged , Female , Male , Interviews as Topic , Communication , Indians, North American , American Indian or Alaska Native , Middle Aged , Southwestern United States
13.
J Health Care Poor Underserved ; 35(1): 375-384, 2024.
Article in English | MEDLINE | ID: mdl-38661876

ABSTRACT

The Indian Health Service (IHS) faces severe workforce shortages due to underfunding and underdevelopment of clinical training programs. Unlike other direct federal health care systems that have implemented clinical training paradigms as central parts of their success, the IHS has no formalized process for developing such programs internally or in partnership with academic institutions. While the Indian Health Care Improvement Act (IHCIA) authorizes mechanisms by which the IHS can support overall workforce development, a critical portion of the act (U.S. Code 1616p) intended for developing clinical training programs within the agency remains unfunded. Here, we review the funding challenges of the IHCIA, as well as its authorized and funded workforce development programs that have only partially addressed workforce shortages. We propose that through additional funding to 1616p, the IHS could implement clinical training programs needed to prepare a larger workforce more capable of meeting the needs of American Indian/Alaska Native communities.


Subject(s)
United States Indian Health Service , Humans , United States , United States Indian Health Service/organization & administration , Health Workforce , Indians, North American , Staff Development/organization & administration , Financing, Government , Quality Improvement/organization & administration , Health Personnel/education
14.
J Stroke Cerebrovasc Dis ; 33(6): 107650, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38460776

ABSTRACT

BACKGROUND: Stroke prevalence varies by race/ethnicity, as do the risk factors that elevate the risk of stroke. Prior analyses have suggested that American Indian/Alaskan Natives (AI/AN) have higher rates of stroke and vascular risk factors. METHODS: We included biyearly data from the 2011-2021 Behavioral Risk Factor Surveillance System (BRFSS) surveys of adults (age ≥18) in the United States. We describe survey-weighted prevalence of stroke per self-report by race and ethnicity. In patients with self-reported stroke (SRS), we also describe the prevalence of modifiable vascular risk factors. RESULTS: The weighted number of U.S. participants represented in BRFSS surveys increased from 237,486,646 in 2011 to 245,350,089 in 2021. SRS prevalence increased from 2.9% in 2011 to 3.3% in 2021 (p<0.001). Amongst all race/ethnicity groups, the prevalence of stroke was highest in AI/AN at 5.4% and 5.6% in 2011 and 2021, compared to 3.0% and 3.4% for White adults (p<0.001). AI/AN with SRS were also the most likely to have four or more vascular risk factors in both 2011 and 2021 at 23.9% and 26.4% compared to 18.2% and 19.6% in White adults (p<0.001). CONCLUSION: From 2011-2021 in the United States, AI/AN consistently had the highest prevalence of self-reported stroke and highest overall burden of modifiable vascular risk factors. This persistent health disparity leaves AI/AN more susceptible to both incident and recurrent stroke.


Subject(s)
Alaska Natives , Behavioral Risk Factor Surveillance System , Self Report , Stroke , Humans , Prevalence , Male , Female , Stroke/epidemiology , Stroke/ethnology , Stroke/diagnosis , United States/epidemiology , Middle Aged , Risk Factors , Adult , Aged , Time Factors , Risk Assessment , Young Adult , Adolescent , American Indian or Alaska Native , Indians, North American , Health Status Disparities , Race Factors
15.
Healthc Pap ; 21(4): 28-37, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38482655

ABSTRACT

The healthcare crisis across unceded First Nations' territories in rural, remote and Indigenous communities in British Columbia (BC) is marked by persistent barriers to accessing care and support close to home. This commentary describes an exceptional story of how technology, trusted partnerships and relationships came together to create an innovative suite of virtual care programs called "Real-Time Virtual Support" (RTVS). We describe key approaches, learnings and future considerations to improve the equity of healthcare delivery for rural, remote and First Nations communities. The key lessons include the following: (1) moving beyond a biomedical model - the collaboration framework for health service design incorporated First Nations' perspective on health and wellness; (2) relational work is the work - the RTVS collaboration was grounded in building connections and relationships to prioritize cultivating trust in the partnership over specific outputs; and (3) aligning to the core values of co-creation - working from a commitment to do things differently and applying an inclusive approach of engagement to integrate perspectives across different sectors and interest groups.


Subject(s)
Delivery of Health Care , Indians, North American , Humans , British Columbia , Indigenous Canadians
16.
Article in English | MEDLINE | ID: mdl-38541268

ABSTRACT

American Indian (AI) women are at risk of alcohol-exposed pregnancy (AEP) due to the higher prevalence of alcohol use disorders (AUDs) and risky drinking. The Native Changing High-Risk Alcohol Use and Increasing Contraception Effectiveness Study (Native CHOICES) was implemented in partnership with a Northern Plains Tribal community to address the effectiveness of a brief, motivational interviewing-based intervention to reduce AEP risk among adult AI women. A subgroup of the participants shared their perspectives in a qualitative interview conducted following the completion of the six-month post-baseline data collection. These interviews solicited participant perspectives on the Native CHOICES intervention and its satisfaction, reach, acceptability, and sustainability. The participants were delighted with Native CHOICES, felt the intervention helped them learn about AEP prevention and goal setting, learned valuable lessons, and believed Native CHOICES would be well-received by other women in their community and should be continued. The participants also shared how the COVID-19 pandemic affected their choices about drinking and birth control. The findings showed the receptivity to and acceptance of Native CHOICES among AI women. The interview findings offered a glimpse into the effectiveness of Native CHOICES and how it contributed to participants making healthier choices surrounding drinking and sexual health.


Subject(s)
Alcoholism , Fetal Alcohol Spectrum Disorders , Indians, North American , Adult , Pregnancy , Humans , Female , Alcohol Drinking/epidemiology , Alcohol Drinking/prevention & control , Fetal Alcohol Spectrum Disorders/prevention & control , Pandemics , Contraception
17.
Diabetes ; 73(6): 1002-1011, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38530923

ABSTRACT

We sought to identify genetic/immunologic contributors of type 2 diabetes (T2D) in an indigenous American community by genotyping all study participants for both high-resolution HLA-DRB1 alleles and SLC16A11 to test their risk and/or protection for T2D. These genes were selected based on independent reports that HLA-DRB1*16:02:01 is protective for T2D and that SLC16A11 associates with T2D in individuals with BMI <35 kg/m2. Here, we test the interaction of the two loci with a more complete data set and perform a BMI sensitivity test. We defined the risk protection haplotype of SLC16A11, T-C-G-T-T, as allele 2 of a diallelic genetic model with three genotypes, SLC16A11*11, *12, and *22, where allele 1 is the wild type. Both earlier findings were confirmed. Together in the same logistic model with BMI ≥35 kg/m2, DRB1*16:02:01 remains protective (odds ratio [OR] 0.73), while SLC16A11 switches from risk to protection (OR 0.57 [*22] and 0.78 [*12]); an added interaction term was statistically significant (OR 0.49 [*12]). Bootstrapped (b = 10,000) statistical power of interaction, 0.4801, yielded a mean OR of 0.43. Sensitivity analysis demonstrated that the interaction is significant in the BMI range of 30-41 kg/m2. To investigate the epistasis, we used the primary function of the HLA-DRB1 molecule, peptide binding and presentation, to search the entire array of 15-mer peptides for both the wild-type and ancient human SLC16A11 molecules for a pattern of strong binding that was associated with risk and protection for T2D. Applying computer binding algorithms suggested that the core peptide at SLC16A11 D127G, FSAFASGLL, might be key for moderating risk for T2D with potential implications for type 1 diabetes.


Subject(s)
Diabetes Mellitus, Type 2 , Epistasis, Genetic , Genetic Predisposition to Disease , HLA-DRB1 Chains , Monocarboxylic Acid Transporters , Humans , Diabetes Mellitus, Type 2/genetics , HLA-DRB1 Chains/genetics , Female , Male , Middle Aged , Monocarboxylic Acid Transporters/genetics , Indians, North American/genetics , Adult , Genotype , Alleles , Body Mass Index , Haplotypes , Polymorphism, Single Nucleotide , Aged
18.
Hum Mol Genet ; 33(11): 981-990, 2024 May 18.
Article in English | MEDLINE | ID: mdl-38483351

ABSTRACT

Most genetic variants associated with adult height have been identified through large genome-wide association studies (GWASs) in European-ancestry cohorts. However, it is unclear how these variants influence linear growth during adolescence. This study uses anthropometric and genotypic data from a longitudinal study conducted in an American Indian community in Arizona between 1965-2007. Growth parameters (i.e. height, velocity, and timing of growth spurt) were derived from the Preece-Baines growth model, a parametric growth curve fitted to longitudinal height data, in 787 participants with height measurements spanning the whole period of growth. Heritability estimates suggested that genetic factors could explain 25% to 71% of the variance of pubertal growth traits. We performed a GWAS of growth parameters, testing their associations with 5 077 595 imputed or directly genotyped variants. Six variants associated with height at peak velocity (P < 5 × 10-8, adjusted for sex, birth year and principal components). Implicated genes include NUDT3, previously associated with adult height, and PACSIN1. Two novel variants associated with duration of growth spurt (P < 5 × 10-8) in LOC105375344, an uncharacterized gene with unknown function. We finally examined the association of growth parameters with a polygenic score for height derived from 9557 single nucleotide polymorphisms (SNPs) identified in the GIANT meta-analysis for which genotypic data were available for the American Indian study population. Height polygenic score was correlated with the magnitude and velocity of height growth that occurred before and at the peak of the adolescent growth spurt, indicating overlapping genetic architecture, with no influence on the timing of adolescent growth.


Subject(s)
Body Height , Genome-Wide Association Study , Indians, North American , Multifactorial Inheritance , Polymorphism, Single Nucleotide , Puberty , Humans , Body Height/genetics , Male , Female , Adolescent , Multifactorial Inheritance/genetics , Indians, North American/genetics , Puberty/genetics , Arizona , Longitudinal Studies , Child , Genotype
19.
Pediatr Dermatol ; 41(3): 560-562, 2024.
Article in English | MEDLINE | ID: mdl-38459646

ABSTRACT

Issues of health equity are rightfully in the national spotlight. Here we present a narrative piece on the sacred importance of hair and its ties to cultural identity among many Native communities in the United States. We introduce unique values ascribed to hair in some Native cultures, and include examples of how hair has played an important role in both abuse and generational trauma for many individuals and families. By sharing experiences, we hope to illuminate perspectives often underrepresented, and to enable more culturally humble, responsive, and informed dermatologic care.


Subject(s)
Hair , Humans , United States , Dermatologists/psychology , Dermatology , Indians, North American
20.
Front Public Health ; 12: 1354761, 2024.
Article in English | MEDLINE | ID: mdl-38463160

ABSTRACT

Introduction: American Indian and Alaska Native (AIAN) communities continue to flourish and innovate in the face of the COVID-19 pandemic. Storytelling is an important tradition for AIAN communities that can function as an intervention modality. To support the needs of AIAN children and caregivers, we (a collaborative workgroup of Indigenous health researchers) developed a culturally grounded storybook that provides pandemic-related public health guidance and mental health coping strategies woven with Inter-Tribal values and teachings. Methods: A collaborative workgroup, representing diverse tribal affiliations, met via four virtual meetings in early 2021 to discuss evolving COVID-19 pandemic public health guidance, community experiences and responses to emerging challenges, and how to ground the story in shared AIAN cultural strengths. We developed and distributed a brief survey for caregivers to evaluate the resulting book. Results: The workgroup iteratively reviewed versions of the storyline until reaching a consensus on the final text. An AI artist from the workgroup created illustrations to accompany the text. The resulting book, titled Our Smallest Warriors, Our Strongest Medicine: Honoring Our Teachings during COVID-19 contains 46 pages of text and full-color illustrations. An online toolkit including coloring pages, traditional language activities, and caregiver resources accompanies the book. We printed and distributed 50,024 physical copies of the book and a free online version remains available. An online survey completed by N = 34 caregivers who read the book with their child(ren) showed strong satisfaction with the book and interest in future books. Discussion: The development of this storybook provides insights for creative dissemination of future public health initiatives, especially those geared toward AIAN communities. The positive reception and widespread interest in the storybook illustrate how braiding AIAN cultural teachings with public health guidance can be an effective way to disseminate health information. This storybook highlights the importance of storytelling as an immersive learning experience through which caregivers and children connect to family, community, culture, and public health guidance. Culturally grounded public health interventions can be effective and powerful in uplifting AIAN cultural values and promoting health and well-being for present and future generations.


Subject(s)
Alaska Natives , COVID-19 , Indians, North American , Child , Humans , Indians, North American/psychology , Pandemics , Public Health Practice
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