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1.
Am J Epidemiol ; 191(4): 636-645, 2022 03 24.
Artigo em Inglês | MEDLINE | ID: mdl-34791022

RESUMO

Maternal childhood adversity and trauma may elicit biological changes that impact the next generation through epigenetic responses measured in DNA methylation (DNAm). These epigenetic associations could be modified by the early postnatal environment through protective factors, such as early childhood home visiting (HV) programs that aim to mitigate deleterious intergenerational effects of adversity. In a cohort of 53 mother-child pairs recruited in 2015-2016 for the Pregnancy and Infant Development Study (Cincinnati, Ohio), we examined the association between maternal adverse childhood experiences (ACEs) and neonatal DNAm in the secretogranin V gene (SCG5), which is important in neuroendocrine function. We examined prenatal HV as an effect modifier. Mothers completed a questionnaire on ACEs during pregnancy, and infant buccal samples were collected 1 month postpartum. Multivariable linear regression was used to examine the association between maternal ACEs and neonatal DNAm expressed as M-values averaged across 4 cytosine-phosphate-guanine dinucleotide sites. A higher number of maternal ACEs (>3) was associated with a 5.79-percentage-point lower offspring DNAm (95% confidence interval: -10.44, -1.14), and the association was modified by the number of home visits received during pregnancy. In a population of at-risk mother-child dyads, preliminary evidence suggests that maternal ACEs have a relationship with offspring SCG5 DNAm that differs by the amount of prenatal HV.


Assuntos
Experiências Adversas da Infância , Pré-Escolar , Metilação de DNA , Epigenômica , Feminino , Visita Domiciliar , Humanos , Lactente , Recém-Nascido , Mães , Gravidez
2.
J Genet Couns ; 31(1): 153-163, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34218493

RESUMO

Rubinstein-Taybi syndrome (RTS) is a rare genetic disorder. Family-centered care (FCC) is a healthcare delivery approach that aims to create an equal partnership between caregivers and providers. FCC has been shown to improve parental wellbeing, their knowledge of the condition and care, and improve their feelings of self-efficacy and personal control. The purpose of this study was to explore the healthcare experiences of family caregivers of children and adults with RTS to understand the issues they encounter when working with medical professionals and to examine their perspectives on how to improve FCC. Primary family caregivers of individuals with RTS took an online mixed-method survey that contained three primary components: a demographic survey, the Measures of Processes of Care-20 (MPOC-20) [a measure of the FCC an individual feels they receive], and a qualitative assessment of negative and positive interactions with medical professionals and priority areas for improvement. Qualitative data were analyzed using thematic analysis. Quantitative data were analyzed with descriptive statistics. An analysis of variance test was used to determine whether values statistically differed between different-age groups of individuals with RTS being cared for. Sixty-three caregivers completed the survey. The average score of the Providing General Information subscale of the MPOC-20 was 3.18, lower than that seen in other studies. The average scores of the other subscales of the MPOC-20 ranged from 4.60 to 5.02, comparable to other studies of caregivers of children with other medical conditions. All aspects of FCC were ranked as important by caregivers. There were no differences in MPOC-20 values between those caring for the individuals with RTS in different-age groups reviewed. In the qualitative responses, parents noted that experiences with medical professionals would be improved if healthcare providers actively provided FCC, collaborated with parents and other providers, respected caregivers' time and breadth of knowledge and lived experience, gave a more balanced description of the condition, showed greater respect toward their loved ones and included them in the conversation, and made an effort to learn about RTS. The changes that parents would like to see in their child's care were not specific to one discipline and could be implemented by all healthcare specialists. While caregivers report that they receive moderate levels of FCC, they indicated that areas of FCC could be improved.


Assuntos
Cuidadores , Síndrome de Rubinstein-Taybi , Adulto , Criança , Comunicação , Pessoal de Saúde , Humanos , Pais
3.
Geriatr Nurs ; 48: 85-93, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36155314

RESUMO

The purpose of this scoping review is to identify conceptual and theoretical resilience models, types of resilience measures, and outcomes regarding resilience in relation to older adults with multimorbidity. PubMed, Embase, CINAHL, and PsycINFO were searched, and we identified 14 studies to July 2021. Most models operationalize resilience as dependent on the social and environmental context of older adults. Three of the five resilience measures in the included studies are used to evaluate general resilience. They are primarily psychological or psychosocial in nature, and measuring physical resilience therefore may help to better understand individuals' ability to cope with the physical challenges associated with various chronic diseases. Quality of life and physical activity were common outcomes in studies of resilience. Findings highlight the need for studies that incorporate physiological measures or physical properties of resilience and longitudinal studies that capture the dynamic process of resilience in older adults with multimorbidity.


Assuntos
Multimorbidade , Qualidade de Vida , Humanos , Idoso , Doença Crônica , Estudos Longitudinais , Exercício Físico
4.
BMC Pediatr ; 21(1): 452, 2021 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-34649513

RESUMO

BACKGROUND: Children from socioeconomically disadvantaged families have a markedly elevated risk for impaired cognitive and social-emotional development. Children in poverty experience have a high risk for developmental delays. Poverty engenders disproportionate exposure to psychological adversity which may contribute to impaired offspring development; however the effect may be mitigated by social support and other aspects of resilience. Our objective was to determine the association between maternal stress, adversity and social support and early infant neurobehavior and child behavior at two and three years. METHODS: We conducted a longitudinal mother-infant cohort study nested within a regional home visiting program in Cincinnati, Ohio. Four home study visits were completed to collect measures of maternal stress, adversity and social support and infant and child behavior. A measure of infant neurobehavior ('high-arousal' infant) was derived from the NICU Network Neurobehavioral Scale (NNNS) at 1 month and externalizing and internalizing symptoms were measured by the Child Behavior Checklist (CBCL) at 24 and 36 months. Linear and logistic regression identified associations between maternal risk/protective factors and infant and child behavioral measures. We used stratification and multiplicative interaction terms to examine potential interactions. RESULTS: We enrolled n = 55 pregnant mothers and follow 53 mother-offspring dyads at 1 month, 40 dyads at 24 months and 27 dyads at 36 months. Maternal adversity and protective factors were not associated with neurobehavior at one month. However, maternal depression and measures of distress in pregnancy were significantly associated with internalizing and externalizing symptoms at 24 and 36 months. CONCLUSIONS: This pilot study established the feasibility of conducting longitudinal research within a community intervention program. In addition, although there were no statistically significant associations between maternal psychosocial factors in pregnancy and infant neurobehavior, there were several associations at 24 months, primarily internalizing symptoms, which persisted through 36 months. Future work will replicate findings within a larger study as well as explore mediators and modifiers of these associations.


Assuntos
Desenvolvimento Infantil , Mães , Estudos de Coortes , Depressão , Feminino , Visita Domiciliar , Humanos , Lactente , Projetos Piloto , Gravidez
5.
Matern Child Health J ; 25(7): 1036-1042, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33961209

RESUMO

INTRODUCTION: The purpose of this paper is to describe the curriculum and self-reported outcomes on measures of interdisciplinary leadership skills for work within the field of developmental disabilities from trainees in one interprofessional training program. METHODS: The paper highlights one program's curriculum and strategy for capturing self-report survey measures from trainees in cohorts from 2014-2018 (n = 86) on two surveys (Interdisciplinary Attitudes and Skills and Leadership Self-Evaluation Form) and three time points across the training year: before training (T1), mid-year (T2), and after training (T3). RESULTS: Data from 86 trainees are reported including demographics (nearly 80% white, 92% female), non-descriptive statistics due to non-normative samples, and tertiles demonstrating changes between time points. Significant differences between medians are reported between T1-T3 specifically related to utilizing interdisciplinary skills and gains in leadership competencies. Specific utilization of skills was reported to be 'Greatly' attributable to the LEND program related to sharing ideas and asking for help across disciplines. DISCUSSION: Trainees' self-report from before training to after training indicates an increase in competence and utilization of interdisciplinary skills to be expected from participation in the curriculum. Self-report measures are.


Assuntos
Deficiências do Desenvolvimento , Liderança , Criança , Currículo , Feminino , Pessoal de Saúde/educação , Humanos , Masculino , Centros de Saúde Materno-Infantil , Avaliação de Programas e Projetos de Saúde
6.
Traffic ; 19(11): 813-822, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29952128

RESUMO

Metal ion transporters of the Zrt- and Irt-like protein (ZIP, or SLC39A) family transport zinc, iron, manganese and/or cadmium across cellular membranes and into the cytosol. The 14 human ZIP family proteins are expressed in a wide variety of tissues and function in many different cellular processes. Many of these proteins (including ZIP1, 2, 3, 4, 5, 6/10, 8, 9, 11, 12, 14) are situated, at least some of the time, on the plasma membrane, where they mediate metal ion uptake into cells. Their level on the cell surface can be controlled rapidly via protein trafficking in response to the ions they transport. For example, the cell surface level of many ZIPs (including ZIP1, 3, 4, 8 and 12) is mediated by the available concentration of zinc. Zinc depletion causes a decrease in endocytosis and degradation, resulting in more ZIP on the surface to take up the essential ion. ZIP levels on the cell surface are a balance between endocytosis, recycling and degradation. We review the trafficking mechanisms of human ZIP proteins, highlighting possible targeting motifs and suggesting a model of zinc-mediated endocytic trafficking. We also provide two possible models for ZIP14 trafficking and degradation.


Assuntos
Proteínas de Transporte de Cátions/metabolismo , Zinco/metabolismo , Animais , Proteínas de Transporte de Cátions/química , Humanos , Transporte Proteico
7.
J Pediatr Nurs ; 54: 86-92, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32682249

RESUMO

PURPOSE: This paper presents an analysis of Head Start (HStart) preschooler data by severity of developmental concern, while considering socio-demographic and other factors that highlight racial and ethnic disparities in the early identification of developmental delay or disability (DD). DESIGN AND METHODS: We conducted an analysis of 2014-2015 academic year data for preschool-aged children in HStart in both urban and suburban centers in a large Midwestern city. Descriptive statistics were used to determine the prevalence of developmental concerns and compare characteristics of children with mild-to-moderate versus severe developmental concerns; differences between groups were compared using t-tests and chi-square tests. Multivariate logistic regression was used to determine the independent effect of each predictor of concern severity. RESULTS: Nearly one-third of HStart preschoolers were identified with developmental concern; 70% were mild-to-moderate risk for DD and the remaining severe risk. Neither group was routinely referred to healthcare for evaluation or treatment, and most of the severe risk group did not qualify nor receive treatment for DD with an Individualized Education Plan. Suburban and urban preschoolers with severe concern were less likely to be African American or Latinx, suggesting that racially and ethnically diverse preschoolers in HStart may be under-identified and under-treated. CONCLUSIONS: Lags in the educational diagnosis of DD may mirror the disparities in diagnosis and treatment of DD among minority groups. Primary care is the first line for detection and treatment of DD, and offers a unique opportunity to act for racially and ethnically diverse HStart preschoolers disproportionately at-risk for DD.


Assuntos
Negro ou Afro-Americano , Etnicidade , Distribuição de Qui-Quadrado , Criança , Pré-Escolar , Deficiências do Desenvolvimento/diagnóstico , Deficiências do Desenvolvimento/epidemiologia , Escolaridade , Disparidades em Assistência à Saúde , Humanos , Grupos Minoritários
8.
Environ Res ; 171: 218-227, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30684889

RESUMO

BACKGROUND: Epidemiological studies report fairly consistent associations between various air pollution metrics and autism spectrum disorder (ASD), with some elevated risks reported for different prenatal and postnatal periods. OBJECTIVES: To examine associations between ASD and ambient fine particulate matter (PM2.5) and ozone concentrations during the prenatal period through the second year of life in a case-control study. METHODS: ASD cases (n = 428) diagnosed at Cincinnati Children's Hospital Medical Center were frequency matched (15:1) to 6420 controls from Ohio birth records. We assigned daily PM2.5 and ozone estimates for 2005-2012 from US EPA's Fused Air Quality Surface Using Downscaling model to each participant for each day based on the mother's census tract of residence at birth. We calculated adjusted odds ratios (aORs) using logistic regression across continuous and categorical exposure window averages (trimesters, first and second postnatal years, and cumulative measure), adjusting for maternal- and birth-related confounders, both air pollutants, and multiple temporal exposure windows. RESULTS: We detected elevated aORs for PM2.5 during the 2nd trimester, 1st year of life, and a cumulative period from pregnancy through the 2nd year (aOR ranges across categories: 1.41-1.44, 1.54-1.84, and 1.41-1.52 respectively), and for ozone in the 2nd year of life (aOR range across categories: 1.29-1.42). Per each change in IQR, we observed elevated aORs for ozone in the 3rd trimester, 1st and 2nd years of life, and the cumulative period (aOR range: 1.19-1.27) and for PM2.5 in the 2nd trimester, 1st year of life, and the cumulative period (aOR range: 1.11-1.17). DISCUSSION: We saw limited evidence of linear exposure-response relationships for ASD with increasing air pollution, but the elevated aORs detected for PM2.5 in upper exposure categories and per IQR unit increases were similar in magnitude to those reported in previous studies, especially for postnatal exposures.


Assuntos
Poluentes Atmosféricos , Poluição do Ar/estatística & dados numéricos , Transtorno do Espectro Autista/epidemiologia , Exposição Ambiental/estatística & dados numéricos , Ozônio , Material Particulado/análise , Estudos de Casos e Controles , Criança , Feminino , Humanos , Ohio/epidemiologia , Gravidez
9.
Am J Perinatol ; 36(1): 45-52, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-29723903

RESUMO

OBJECTIVE: This article compares maternal and neonatal outcomes in women aged ≥ 35 years who experienced nonmedically indicated induction of labor (NMII) versus expectant management. STUDY DESIGN: This was a retrospective cohort study of nulliparas aged ≥ 35 years with a singleton and cephalic presentation who delivered at term. Outcomes were compared between women who underwent NMII at 37, 38, 39, and 40 weeks' gestation and those with expectant management that week. Adjusted odds ratios (aORs) with 95% confidence intervals (95% CIs) were calculated, controlling for predefined covariates. RESULTS: Of 3,819 nulliparas aged ≥ 35 years, 1,409 (36.9%) women underwent NMII. Overall at 39 weeks' gestation or later, maternal and neonatal outcomes were similar or improved with NMII. At 37, 38, and 39 weeks' gestation, NMII compared with expectant management was associated with decreased odds of cesarean delivery at 37, 38, and 39 weeks' gestation. At 40 weeks' gestation, NMII compared with expectant management was associated with an increased odds of operative vaginal delivery and a decreased odds of neonatal intensive care unit (NICU) admission. CONCLUSION: In nulliparous women aged ≥ 35 years, NMII was associated with decreased odds of cesarean delivery at 37 to 39 weeks' gestation and decreased odds of NICU admission at 40 weeks' gestation compared with expectant management.


Assuntos
Parto Obstétrico , Trabalho de Parto Induzido , Idade Materna , Prova de Trabalho de Parto , Conduta Expectante , Adulto , Parto Obstétrico/métodos , Parto Obstétrico/estatística & dados numéricos , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Trabalho de Parto Induzido/métodos , Trabalho de Parto Induzido/estatística & dados numéricos , Gravidez , Resultado da Gravidez/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Nascimento a Termo , Estados Unidos/epidemiologia , Conduta Expectante/métodos , Conduta Expectante/estatística & dados numéricos
10.
Malar J ; 17(1): 403, 2018 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-30384849

RESUMO

BACKGROUND: The detection of submicroscopic infections in low prevalence settings has become an increasingly important challenge for malaria elimination strategies. The current field rapid diagnostic tests (RDTs) for Plasmodium falciparum malaria are inadequate to detect low-density infections. Therefore, there is a need to develop more sensitive field diagnostic tools. In parallel, a highly sensitive laboratory reference assay will be essential to evaluate new diagnostic tools. Recently, the highly sensitive Alere™ Malaria Ag P.f ELISA (HS ELISA) was developed to detect P. falciparum histidine-rich protein 2 (HRP2) in clinical whole blood specimens. In this study, the analytical and clinical performance of the HS ELISA was determined using recombinant P. falciparum HRP2, P. falciparum native culture parasites, and archived highly pedigreed clinical whole blood specimens from Karen village, Myanmar and Nagongera, Uganda. RESULTS: The HS ELISA has an analytical sensitivity of less than 25 pg/mL and shows strong specificity for P. falciparum HRP2 when tested against P. falciparum native culture strains with pfhrp2 and pfhrp3 gene deletions. Additionally, the Z'-factor statistic of 0.862 indicates the HS ELISA as an excellent, reproducible assay, and the coefficients of variation for inter- and intra-plate testing, 11.76% and 2.51%, were acceptable. Against clinical whole blood specimens with concordant microscopic and PCR results, the HS ELISA showed 100% (95% CI 96.4-100) diagnostic sensitivity and 97.9% (95% CI 94.8-99.4) diagnostic specificity. For P. falciparum positive specimens with HRP2 concentrations below 400 pg/mL, the sensitivity and specificity were 100% (95% CI 88.4-100) and 88.9% (95% CI 70.8-97.6), respectively. The overall sensitivity and specificity for all 352 samples were 100% (CI 95% 96-100%) and 97.3% (CI 95% 94-99%). CONCLUSIONS: The HS ELISA is a robust and reproducible assay. The findings suggest that the HS ELISA may be a useful tool as an affordable reference assay for new ultra-sensitive HRP2-based RDTs.


Assuntos
Antígenos de Protozoários/sangue , Testes Diagnósticos de Rotina/métodos , Ensaio de Imunoadsorção Enzimática/métodos , Malária Falciparum/diagnóstico , Plasmodium falciparum/isolamento & purificação , Proteínas de Protozoários/sangue , Humanos , Mianmar , Sensibilidade e Especificidade , Uganda
11.
Matern Child Health J ; 22(4): 494-500, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29388114

RESUMO

Objectives To determine whether participation in a home visiting program increases and expedites utilization of early intervention services for suspected developmental delays. Methods Children participating in Every Child Succeeds (ECS), a large home visiting (HV) program serving greater Cincinnati, between 2006 and 2012, were propensity score matched to a sample of children identified from birth records who did not receive services from ECS. Data were linked to early intervention (EI) data acquired from the Ohio Department of Health. Descriptive statistics were employed to evaluate success of the matching. Chi square and log-rank tests evaluated whether the proportion of children accessing EI and the time to EI services differed for families participating in HV compared to eligible children not participating. Logistic regression and Cox proportional hazards regression modeled the associations. Results Among 3574 HV and 3574 comparison participants, there was no difference in the time to EI service utilization; however a higher percentage of HV participants accessed services. Overall, 6% of the HV group and 4.3% of the comparison group accessed services (p = 0.001). Modeling revealed an odd ratio = 1.43 [95% confidence interval (CI) 1.16-1.78, p value = 0.001] and hazard ratio = 1.42 [95% CI 1.15-1.75, p value = 0.001]. Differences in utilization were greatest directly after birth and between approximately 2 and 3 years. Conclusions for Practise Participation in home visiting was associated with greater utilization of EI services during two important developmental time points, demonstrating that home visiting may serve as an important resource for facilitating access to early intervention services.


Assuntos
Deficiências do Desenvolvimento/terapia , Intervenção Educacional Precoce/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde , Visita Domiciliar , Mães/psicologia , Cuidado Pós-Natal , Estudos de Coortes , Deficiências do Desenvolvimento/epidemiologia , Feminino , Serviços de Assistência Domiciliar , Humanos , Lactente , Masculino , Ohio , Gravidez , Avaliação de Programas e Projetos de Saúde , Estudos Retrospectivos
12.
Am J Perinatol ; 35(1): 95-102, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28838008

RESUMO

OBJECTIVE: This study aims to compare outcomes of induction with planned cesarean in women with preeclampsia. STUDY DESIGN: A retrospective cohort study, including women with singleton pregnancies, preeclampsia (mild, severe, and superimposed), and without previous cesarean at ≥ 34 weeks' gestation was conducted. Outcomes included primary outcome (intensive care unit [ICU] admission, thromboembolism, transfusion, and hysterectomy), composite severe neonatal outcome (asphyxia, arterial cord pH < 7.0, hypoxic-ischemic encephalopathy, and 5-minute Apgar score < 5), neonatal ICU (NICU) admission, transient tachypnea of newborn (TTN), and respiratory distress syndrome (RDS). Adjusted odds ratios (aORs) with 95% confidence intervals (CIs) were calculated, controlling for confounders. RESULTS: Of 5,506 women with preeclampsia at ≥ 34 weeks' gestation, 5,104 (92.7%) women underwent induction. Induction compared with planned cesarean was not associated with an increased risk of the primary outcome but was related to increased risks of ICU admission (aOR: 3.29; 95% CI: 1.02-10.64), and linked to decreased risks of composite neonatal outcome (aOR: 0.32; 95% CI: 0.10-0.99), NICU admission (aOR: 0.60; 95% CI: 0.43-0.84), TTN (aOR: 0.38; 95% CI: 0.22-0.64), and RDS (aOR: 0.44; 95% CI: 0.22-0.86). CONCLUSION: Induction was not associated with an increased risk of the primary outcome but was associated with an increased risk of ICU admission and decreased risks of neonatal outcomes.


Assuntos
Cesárea/estatística & dados numéricos , Trabalho de Parto Induzido/estatística & dados numéricos , Pré-Eclâmpsia/terapia , Resultado da Gravidez , Síndrome do Desconforto Respiratório do Recém-Nascido/epidemiologia , Adulto , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal/estatística & dados numéricos , Modelos Logísticos , Análise Multivariada , Gravidez , Estudos Retrospectivos , Estados Unidos , Adulto Jovem
13.
Ann Emerg Med ; 70(3): 302-310.e1, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28238500

RESUMO

STUDY OBJECTIVE: We evaluated the influence of home visiting on the risk for medically attended unintentional injury during home visiting (0 to 3 years) and subsequent to home visiting (3 to 5 years). METHODS: A retrospective, quasi-experimental study was conducted in a cohort of mother-child pairs in Hamilton County, OH. The birth cohort (2006 to 2012) was linked to administrative home visiting records and data from a population-based injury surveillance system containing records of emergency department (ED) visits and hospitalizations. Cox proportional-hazard regression was used to compare medically attended unintentional injury risk (0 to 2, 0 to 3, and 3 to 5 years) in a home-visited group versus a propensity score-matched comparison group. The study population was composed of 2,729 mother-child pairs who received home visiting and 2,729 matched mother-child pairs in a comparison group. RESULTS: From birth to 2 years, 17.2% of the study population had at least one medically attended unintentional injury. The risk for medically attended unintentional injury from aged 0 to 2 and 0 to 3 years was significantly higher in the home-visited group relative to the comparison group (hazard ratio 1.17, 95% confidence interval 1.01 to 1.35; hazard ratio 1.15, 95% confidence interval 1.00 to 1.31, respectively). Additional injuries in the home-visited group were superficial, and the increased risk for medically attended unintentional injury was observed for ED visits and not hospitalizations. CONCLUSION: Home-visited children were more likely to have a medically attended unintentional injury from birth to aged 3 years. This finding may be partially attributed to home visitor surveillance of injuries or greater health care-seeking behavior. Implications and alternative explanations are discussed.


Assuntos
Prevenção de Acidentes/métodos , Acidentes Domésticos/prevenção & controle , Serviço Hospitalar de Emergência/estatística & dados numéricos , Visita Domiciliar/estatística & dados numéricos , Pais/educação , Ferimentos e Lesões/prevenção & controle , Acidentes Domésticos/estatística & dados numéricos , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Ohio/epidemiologia , Poder Familiar , Vigilância da População , Avaliação de Programas e Projetos de Saúde , Equipamentos de Proteção/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Fatores Socioeconômicos , Ferimentos e Lesões/epidemiologia
14.
J Nutr ; 146(9): 1756-61, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27511926

RESUMO

BACKGROUND: Evidence from experimental studies has demonstrated that higher than normal iron concentrations can lead to pancreatic ß cell dysfunction and impaired glucose metabolism. Studies on body iron stores in early pregnancy and subsequent gestational diabetes mellitus (GDM) risk are sparse. OBJECTIVE: Our objective was to determine whether biomarkers of body iron stores measured in early pregnancy are associated with GDM risk. METHODS: A case-control study of 350 GDM cases and 349 non-GDM controls was conducted in participants from the Danish National Birth Cohort. Blood was collected at a mean ± SD gestational age of 9.4 ± 3.2 wk. Plasma biomarkers of iron stores, including ferritin and soluble transferrin receptor (sTfR), were measured. Logistic regression was used to estimate the OR of GDM associated with quintiles of plasma biomarkers of body iron stores, controlling for maternal age, family history of diabetes, exercise in pregnancy, parity, and prepregnancy body mass index (BMI). RESULTS: Cases were older (mean ± SD age: 32.2 ± 4.3 compared with 29.9 ± 4.2 y) and had a higher BMI (in kg/m(2); mean ± SD: 28.7 ± 6.0 compared with 24.1 ± 4.6) than controls. Plasma concentrations of both ferritin and sTfR in early pregnancy were significantly higher in GDM cases than in controls [means ± SDs: 80.6 ± 56.0 compared with 71.8 ± 50.1 µg/L (P = 0.03) and 1.5 ± 0.7 compared with 1.4 ± 0.6 mg/L (P = 0.002) for ferritin and sTfR, respectively]. Ferritin was positively and significantly associated with GDM risk even after adjustment for major risk factors of GDM, including prepregnancy BMI. ORs across increasing quintiles of ferritin were 1.00 (reference), 1.25 (95% CI: 0.70, 2.22), 1.89 (95% CI: 1.06, 3.37), 0.82 (95% CI: 0.46, 1.48), and 2.34 (95% CI: 1.30, 4.21) (P-linear trend = 0.02). CONCLUSION: These findings suggest that plasma ferritin measured in early pregnancy is significantly and positively associated with GDM risk.


Assuntos
Diabetes Gestacional/sangue , Ferritinas/sangue , Adulto , Biomarcadores/sangue , Índice de Massa Corporal , Proteína C-Reativa/metabolismo , Estudos de Casos e Controles , Dinamarca , Diabetes Gestacional/diagnóstico , Feminino , Idade Gestacional , Humanos , Ferro/sangue , Modelos Logísticos , Gravidez , Estudos Prospectivos , Receptores da Transferrina/sangue , Fatores de Risco , Fatores Socioeconômicos
15.
Biochem J ; 471(1): 79-88, 2015 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-26221024

RESUMO

The Kaposi's sarcoma-associated herpes virus (KSHV) K3 viral gene product effectively down-regulates cell surface MHC class I. K3 is an E3 ubiquitin ligase that promotes Lys(63)-linked polyubiquitination of MHC class I, providing the signal for clathrin-mediated endocytosis. Endocytosis is followed by sorting into the intralumenal vesicles (ILVs) of multivesicular bodies (MVBs) and eventual delivery to lysosomes. The sorting of MHC class I into MVBs requires many individual proteins of the four endosomal sorting complexes required for transport (ESCRTs). In HeLa cells expressing the KSHV K3 ubiquitin ligase, the effect of RNAi-mediated depletion of individual proteins of the ESCRT-0 and ESCRT-I complexes and three ESCRT-III proteins showed that these are required to down-regulate MHC class I. However, depletion of proteins of the ESCRT-II complex or of the ESCRT-III protein, VPS20 (vacuolar protein sorting 20)/CHMP6 (charged MVB protein 6), failed to prevent the loss of MHC class I from the cell surface. Depletion of histidine domain phosphotyrosine phosphatase (HD-PTP) resulted in an increase in the cell surface concentration of MHC class I in HeLa cells expressing the KSHV K3 ubiquitin ligase. Rescue experiments with wild-type (WT) and mutant HD-PTP supported the conclusion that HD-PTP acts as an alternative to ESCRT-II and VPS20/CHMP6 as a link between the ESCRT-I and those ESCRT-III protein(s) necessary for ILV formation. Thus, the down-regulation of cell surface MHC class I, polyubiquitinated by the KSHV K3 ubiquitin ligase, does not employ the canonical ESCRT pathway, but instead utilizes an alternative pathway in which HD-PTP replaces ESCRT-II and VPS20/CHMP6.


Assuntos
Regulação para Baixo , Complexos Endossomais de Distribuição Requeridos para Transporte/metabolismo , Herpesvirus Humano 8/metabolismo , Antígenos de Histocompatibilidade Classe I/biossíntese , Proteínas Tirosina Fosfatases não Receptoras/metabolismo , Ubiquitinação , Proteínas Virais/metabolismo , Complexos Endossomais de Distribuição Requeridos para Transporte/genética , Células HeLa , Herpesvirus Humano 8/genética , Antígenos de Histocompatibilidade Classe I/genética , Humanos , Proteínas Tirosina Fosfatases não Receptoras/genética , Proteínas Virais/genética
16.
Am J Perinatol ; 33(13): 1255-1261, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27398699

RESUMO

Objective To determine the association between placental weight (PW) and large for gestational age (LGA) in women with type 1 diabetes mellitus (T1DM) and whether glycemic control modifies the association. Study Design In a retrospective analysis of a cohort of women with T1DM, poor glycemic control was defined as glycohemoglobin A1(HbA1)≥ 8.5% (≥2 standard deviations [SD] above mean), and LGA as birth weight > 90th percentile, according to gestation, race, and sex. Multivariable logistic regression was used for analysis. Stratified analyses (HbA1 < 8.5% vs. HbA1 ≥ 8.5%) assessed the role of glycemic control on association between PW and LGA. Results PW in 302 pregnancies was positively associated with LGA (first vs. fourth quartile of PW; odds ratio [OR] = 9.56; 95% confidence interval [CI]: 4.14-22.08). Association varied significantly by glycemic control in the first trimester, but not in the second and third trimesters. For women with first trimester HbA1 concentration < 8.5%, there was no statistically significant association; however, with HbA1 ≥ 8.5%, there was a strong association (OR = 13.40, 95% CI: 3.31, 54.27). Conclusion There was a significant positive association between PW and LGA in infants of women with T1DM, particularly evident in pregnancies with poor glycemic control during the first trimester, highlighting the importance of achieving good glycemic control early in gestation.


Assuntos
Peso ao Nascer , Diabetes Mellitus Tipo 1/sangue , Macrossomia Fetal/sangue , Hemoglobinas Glicadas/metabolismo , Placenta/patologia , Gravidez em Diabéticas/sangue , Adulto , Diabetes Mellitus Tipo 1/complicações , Feminino , Desenvolvimento Fetal , Macrossomia Fetal/etiologia , Humanos , Estudos Longitudinais , Tamanho do Órgão , Gravidez , Primeiro Trimestre da Gravidez/sangue , Estudos Retrospectivos , Adulto Jovem
17.
Am J Perinatol ; 33(13): 1266-1272, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27398703

RESUMO

Objective This study aims to evaluate the association between gestational weight gain (GWG) defined by the current Institute of Medicine (IOM) guidelines and pregnancy outcomes in women with type 1 diabetes mellitus (DM). Study design This is a secondary analysis of a cohort of 293 pregnancies of women with type 1 DM between 24 and 41 weeks' gestation. Women were categorized according to GWG per week over the second and third trimester: below, within, and above the IOM guidelines. Adjusted odds ratios (aORs) with 95% confidence intervals (CIs) were calculated for maternal and neonatal outcomes, controlling for covariates and confounders (referent: GWG within the IOM guidelines). Results Of the 293 women, there were 49 women (16.7%) with the GWG below the IOM guidelines, 86 women (29.4%) with the GWG within the IOM guidelines, and 158 women (53.9%) with the GWG above the IOM guidelines. Women with the GWG above the IOM guidelines had a higher risk of macrosomia and neonatal hyperbilirubinemia (aOR: 2.78; 95% CI: 1.23-6.30 and 2.31; 1.22-4.35, respectively). Conclusion GWG above the IOM guidelines is associated with an increased risk of macrosomia and neonatal hyperbilirubinemia. Maintaining GWG within the IOM guidelines may decrease the risk of excessive fetal growth and neonatal hyperbilirubinemia in infants of women with type 1 DM.


Assuntos
Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/fisiopatologia , Gravidez em Diabéticas/fisiopatologia , Aumento de Peso , Adulto , Cesárea/estatística & dados numéricos , Diabetes Mellitus Tipo 1/tratamento farmacológico , Feminino , Macrossomia Fetal/etiologia , Humanos , Hiperbilirrubinemia Neonatal/etiologia , Hipoglicemiantes/administração & dosagem , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Insulina/administração & dosagem , Trabalho de Parto Induzido/estatística & dados numéricos , National Academies of Science, Engineering, and Medicine, U.S., Health and Medicine Division , Policitemia/etiologia , Guias de Prática Clínica como Assunto , Pré-Eclâmpsia/etiologia , Gravidez , Segundo Trimestre da Gravidez , Terceiro Trimestre da Gravidez , Gravidez em Diabéticas/tratamento farmacológico , Estudos Prospectivos , Estados Unidos , Adulto Jovem
18.
Diabetologia ; 58(6): 1212-9, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25796371

RESUMO

AIMS/HYPOTHESIS: Women with a history of gestational diabetes mellitus (GDM) are advised to control their weight after pregnancy. We aimed to examine how adiposity and weight change influence the long-term risk of developing type 2 diabetes after GDM. METHODS: We included 1,695 women who had incident GDM between 1991 and 2001, as part of the Diabetes & Women's Health study, and followed them until the return of the 2009 questionnaire. Body weight and incident type 2 diabetic cases were reported biennially. We defined baseline as the questionnaire period when women reported an incident GDM pregnancy. We estimated HRs and 95% CIs using Cox proportional hazards models. RESULTS: We documented 259 incident cases of type 2 diabetes during up to 18 years of follow-up. The adjusted HRs of type 2 diabetes associated with each 1 kg/m(2) increase in BMI were 1.16 (95% CI 1.12, 1.19) for baseline BMI and 1.16 (95% CI 1.13, 1.20) for most recent BMI. Moreover, each 5 kg increment of weight gain after GDM development was associated with a 27% higher risk of type 2 diabetes (adjusted HR 1.27; 95% CI 1.04, 1.54). Jointly, women who had a BMI ≥30.0 kg/m(2) at baseline and gained ≥5 kg after GDM had an adjusted HR of 43.19 (95% CI 13.60, 137.11), compared with women who had a BMI <25.0 kg/m(2) at baseline and gained <5 kg after GDM. CONCLUSIONS/INTERPRETATION: Baseline BMI, most recent BMI and weight gain after GDM were significantly and positively associated with risk of progression from GDM to type 2 diabetes.


Assuntos
Índice de Massa Corporal , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/fisiopatologia , Diabetes Gestacional/fisiopatologia , Adiposidade , Adulto , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Análise Multivariada , Obesidade/complicações , Gravidez , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Risco , Inquéritos e Questionários , Aumento de Peso
19.
Acta Obstet Gynecol Scand ; 93(11): 1123-30, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24828694

RESUMO

Women who develop gestational diabetes mellitus or impaired glucose tolerance during pregnancy are at substantially increased risk for type 2 diabetes and comorbidities after pregnancy. Little is known about the role of genetic factors and their interactions with environmental factors in determining the transition from gestational diabetes mellitus to overt type 2 diabetes mellitus. These critical data gaps served as the impetus for this Diabetes & Women's Health study with the overall goal of investigating genetic factors and their interactions with risk factors amenable to clinical or public health interventions in relation to the transition of gestational diabetes mellitus to type 2 diabetes mellitus. To achieve the goal efficiently, we are applying a hybrid design enrolling and collecting data longitudinally from approximately 4000 women with a medical history of gestational diabetes mellitus in two existing prospective cohorts, the Nurses' Health Study II and the Danish National Birth Cohort. Women who had a medical history of gestational diabetes mellitus in one or more of their pregnancies are eligible for the present study. After enrollment, we follow study participants for an additional 2 years to collect updated information on major clinical and environmental factors that may predict type 2 diabetes mellitus risk as well as with biospecimens to measure genetic and biochemical markers implicated in glucose metabolism. Newly collected data will be appended to the relevant existing data for the creation of a new database inclusive of genetic, epigenetic and environmental data. Findings from the study are critical for the development of targeted and more effective strategies to prevent type 2 diabetes mellitus and its complications in this high-risk population.


Assuntos
Diabetes Mellitus Tipo 2/genética , Diabetes Gestacional/genética , Intolerância à Glucose/genética , Complicações na Gravidez/genética , Projetos de Pesquisa , Adulto , Feminino , Interação Gene-Ambiente , Predisposição Genética para Doença , Teste de Tolerância a Glucose , Humanos , Enfermeiras e Enfermeiros , Gravidez , Estudos Prospectivos , Fatores de Risco , Inquéritos e Questionários , Estados Unidos
20.
J Clin Endocrinol Metab ; 109(3): e1040-e1047, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-37933636

RESUMO

CONTEXT: Most individuals with Turner syndrome (TS) require estrogen for pubertal induction. Current estrogen dosing guidelines are based on expert consensus opinion. OBJECTIVE: Evaluate whether current international guidelines for estrogen dosing during pubertal induction of individuals with TS result in normal uterine growth. We hypothesized that uterine size in individuals with TS who reached adult estrogen dosing is smaller than in mature females without TS. METHODS: Cross-sectional study of patients with TS at the Cincinnati Center for Pediatric and Adult Turner Syndrome Care. Twenty-nine individuals (age 15-26 years) with primary ovarian insufficiency who reached adult estrogen dosing (100 µg of transdermal or 2 mg of oral 17ß-estradiol) were included. Comparison of uterine measurements with a published sample of 292 age-appropriate (age 15-20 years) controls without TS. Uterine length, volume, and fundal-cervical ratio (FCR) were measured. Clinical information (karyotype, Tanner staging for breast development, laboratory data) was extracted from an existing institutional patient registry. RESULTS: There was no evidence of compromise of the uterine size/configuration in the TS cohort compared with the controls; in fact, uterine length, mean 7.7 cm (±1.3) vs 7.2 cm (±1.0) (P = .03), and volume, mean 60.6 cm3 (±26.6) vs 50.5 cm3 (±20.5) (P = .02), were both larger in individuals with TS. CONCLUSION: Current international guidelines for hormone replacement using 17ß-estradiol in individuals with TS appear adequate to allow for normal uterine growth by the end of pubertal induction.


Assuntos
Síndrome de Turner , Feminino , Adulto , Criança , Humanos , Adolescente , Adulto Jovem , Síndrome de Turner/tratamento farmacológico , Estudos Transversais , Estrogênios/uso terapêutico , Estradiol , Terapia de Reposição Hormonal
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