HIV-Related Stigma Research as a Priority at the National Institutes of Health.

The National Institutes of Health (NIH) recognizes that, despite HIV scientific advances, stigma and discrimination continue to be critical barriers to the uptake of evidence-based HIV interventions. Achieving the Ending the HIV Epidemic: A Plan for America (EHE) goals will require eliminating HIV-related stigma. NIH has a significant history of supporting HIV stigma research across its Institutes, Centers, and Offices (ICOs) as a research priority. This article provides an overview of NIH HIV stigma research efforts. Each ICO articulates how their mission shapes their interest in HIV stigma research and provides a summary of ICO-relevant scientific findings. Research gaps and/or future opportunities are identified throughout, with key research themes and approaches noted. Taken together, the collective actions on the part of the NIH, in tandem with a whole of government and whole of society approach, will contribute to achieving EHE's milestones.

RESUMEN: Los Institutos de Salud Nacional (NIH, siglas en inglés) reconocen que, a pesar de los avances en la prevención y el tratamiento, el estigma y la discriminación continúan siendo barreras críticas a la adopción de la prevención y el cuido basados en la evidencia. Las metas de Logrando el Fin de la Epidemia de VIH: Plan para América (EHE, siglas en inglés) requerirán la eliminación del estigma relacionado al VIH. Los NIH tienen una historia significativa apoyando la investigación del estigma relacionado al VIH a través de sus Institutos, Centros, y Oficinas (ICOs, siglas en inglés). Esta investigación es una prioridad fundamental y entrelazada para los ICOs. En este artículo, los autores de los NIH proveen una reseña sobre la investigación del estigma relacionado al VIH a través de los ICOs selectos. Cada ICO articula como su misión y prioridad dan forma a su interés en la investigación del estigma al VIH y provee una breve reseña de los hallazgos científicos pertinentes al ICO. Lagunas en la investigación relacionada a la misión, prioridades, y/o áreas de investigación futuras se identifican a través del artículo. También se apuntan en el resumen los temas de investigación claves y sus estrategias. En conjunto, las acciones colectivas de parte de los NIH, junto a la estrategia necesaria de parte del gobierno en su totalidad y de la sociedad en su totalidad, contribuirán al logro de las metas del EHE.

Science, Politics, and Communication: The Case of Community Water Fluoridation in the US.

Community water fluoridation (CWF) and its effect in reducing the burden of dental caries (tooth decay) is considered one of the 10 public health achievements in the 20th century. In the U.S., three-quarters (74.4%) of people on community water supplies have optimally fluoridated water, and each year approximately 90 communities actively consider starting or discontinuing CWF. CWF exists within the policy environment and includes actions taken by local community councils, health and water boards, and groups; state legislatures and health departments; national regulatory and science agencies; independent science entities; and professional and nonprofit organizations. Epidemiologists have been in the forefront of CWF. Experience with the past 70 years reveals that the coming decades will bring additional questions, recommendations, and challenges for CWF. The continued involvement of epidemiologists as part of multidisciplinary teams is needed in research, surveillance, peer review of studies, assessment of systematic review findings, and in the translation and communication of science findings to audiences with limited science/health literacy. This chapter's purpose is to 1) examine how epidemiologic evidence regarding CWF has been translated into practice and policy, 2) examine how recommendations for and challenges to CWF have affected epidemiologic research and community decision-making, and 3) identify lessons learned for epidemiologists.

Oral Health Interventions During Pregnancy.

Oral health is a fundamental component of health and physical and mental well-being. Oral health is influenced by an individual's physiologic and psychosocial attributes and cumulative oral health experiences. The perinatal period is a critical time when health and oral health determinants set in and thus an important time for intervention. Recognition of the importance of oral health intervention during pregnancy and oral health infrastructures have substantially grown over the last several years. This article reviews the current state of knowledge and practice of oral health intervention during pregnancy with a focus on individual- and population-based strategies, and summarizes key agendas for advancing prenatal oral health.

Knowledge, Perceived Ability and Practice Behaviors Regarding Oral Health among Pediatric Hematology and Oncology Nurses.

PURPOSE: Oral complications are common in children undergoing head and neck radiation and chemotherapy. The purpose of this study is to examine the knowledge, perceived ability and practice behaviors of pediatric oncology and hematology nurses in assisting with the various oral health care needs of pediatric oncology patients and to identify pediatric oncology nurses' previous training/education, practice types and other demographic characteristics that are related to their oral health competencies. METHODS: A survey of a convenience sample of Pediatric Oncology and Hematology Nurses was conducted during the Association of Pediatric Oncology and Hematology Nurses' (APHON) 36(th) Annual Conference and Exhibit. Descriptive analysis and the exploratory factor analyses were performed using SAS version 9.2 (SAS Institute, Inc., Cary, NC). RESULTS: Among the 300 surveys that were distributed, 235 surveys were completed (78% response rate) by pediatric oncology or hematology nurses who provide direct patient care in the U.S. Approximately 75% reported receiving less than 3 hours of oral health related education/training. Sixty percent did not have a clinical requirement regarding the assessment of the teeth and gums during their nursing school education. Bivariate analyses indicated that nurses who had clinical requirements regarding oral health assessment during nursing education/training presented greater overall oral health competencies including having greater confidence in examining oral complications than those who did not. CONCLUSION: Pediatric oncology nurses' knowledge, perceived ability and practice in assisting patient's oral hygiene care, preventing and managing oral complications vary by topic and might reflect their educational preparedness. This study may provide valuable information pertaining to the need and opportunity for interprofessional oral health care education and collaboration with nursing and dental professionals, in order to increase access to comprehensive oral care for pediatric cancer patients.

Dietary recommendations for infants and toddlers among pediatric dentists in North Carolina.

PURPOSE: The purposes of this study were to: describe practice patterns, knowledge, and attitudes of pediatric dentists in North Carolina (N.C.) in delivering dietary recommendations to the parents/caregivers of infants and toddlers; and identify barriers that limit the implementation of related recommendations. METHODS: Our survey instrument included 30 questions covering eight domains of barriers to guideline adherence. Surveys were mailed to 150 practicing pediatric dentists in N.C. Descriptive and bivariate analyses were performed. Exploratory factor analysis was used to identify subscales and inform the multivariable model. RESULTS: The response rate was 57 percent (86/150), 80 percent of whom reported providing infant and toddler feeding recommendations routinely. Knowledge of and agreement with the recommendation regarding breast-feeding duration was lower than that for bottle-feeding recommendations. Stepwise logistic regression analysis indicated that survey respondents were less likely to provide dietary recommendations regularly to the parents/caregivers of infants and toddlers when they have practice constraints and the respondents disagree with American Academy of Pediatrics (AAP) and American Academy of Pediatric Dentistry (AAPD) recommendations on bottle and juice consumption. CONCLUSIONS: Most respondents routinely provide dietary recommendations to the parents/caregivers of infants and toddlers. Disagreement with AAP and AAPD recommendations on bottle, and juice consumption as well as practice constraints impedes practitioners from providing dietary recommendations regularly to the parents/caregivers of infants and toddlers.

Oral health and dental care during pregnancy.

Current research shows that women tend to receive less dental care than usual when they are pregnant. In 2012, the first national consensus statement on oral health care during pregnancy was issued, emphasizing both the importance and safety of routine dental care for pregnant women. This article reviews the current recommendations for perinatal oral health care and common oral manifestations during pregnancy. Periodontal disease and its association with preterm birth and low birth weight are also discussed, as is the role played by dental intervention in these adverse outcomes.

Mother-perceived social capital and children's oral health and use of dental care in the United States.

OBJECTIVES: We examined the association between mother-perceived neighborhood social capital and oral health status and dental care use in US children. METHODS: We analyzed data for 67 388 children whose mothers participated in the 2007 National Survey of Children's Health. We measured mothers' perceived social capital with a 4-item social capital index (SCI) that captures reciprocal help, support, and trust in the neighborhood. Dependent variables were mother-perceived ratings of their child's oral health, unmet dental care needs, and lack of a previous-year preventive dental visit. We performed bivariate and multivariable logistic regression analyses for each outcome. RESULTS: After we controlled for potential confounders, children of mothers with high (SCI = 5-7) and lower levels (SCI ≥ 8) of social capital were 15% (P = .05) and about 40% (P ≤ .02), respectively, more likely to forgo preventive dental visits than were children of mothers with the highest social capital (SCI = 4). Mothers with the lowest SCI were 79% more likely to report unmet dental care needs for their children than were mothers with highest SCI (P = .01). CONCLUSIONS: A better understanding of social capital's effects on children's oral health risks may help address oral health disparities.

Utility of a summative scale based on the Children with Special Health Care Needs (CSHCN) Screener to identify CSHCN with special dental care needs.

Our objective was to determine if a summative scale reflecting the number of positive criteria on the Children with Special Health Care Needs (CSHCN) Screener is useful in identifying subgroups of CSHCN at risk for poorer oral health and unmet dental care needs and who should be considered to have special dental care needs. Data were analyzed for a population-based sample of 91,642 US children <18 years from the 2007 National Survey of Children's Health. The independent variable of interest was the summative number of positive CSHCN Screener criteria. Dependent variables were parent-perceived condition of child's teeth, toothache, cavities, broken teeth, bleeding gums in the previous 6 months, and unmet dental care needs in the past 12 months. Descriptive and multivariable logistic regression analyses were performed for each outcome using the survey command in Stata to account for the sampling design. A summative scale based on the number of positive CSHCN Screener criteria was independently associated with various parent-perceived poorer oral health outcomes in children. CSHCN who met 4 or 5 screener criteria had 4 and 4.5 times, respectively, the odds of having fair-poor condition of teeth and bleeding gums relative to non-CSHCN. They also had 87% higher odds for parent-perceived toothache and 2 and 2.5 times the odds of having recent broken teeth and unmet dental care needs relative to non-CSHCN, respectively. There was no dose-dependent association between summative number of positive CSHCN Screener criteria and reported cavities in children. Application of a summative score based on the CSHCN Screener has utility in identifying the CSHCN subgroup with special dental care needs.

Possible role of cysteine-S-conjugate ß-lyase in species differences in cisplatin nephrotoxicity.

To better understand species differences in cisplatin nephrotoxicity, we focused on renal cysteine-S-conjugate ß-lyase (C-S lyase), which may play a crucial role in the metabolism of platinum (Pt)-cysteine conjugates. Aminooxyacetic acid hemihydrochloride (AOAA), an inhibitor of C-S lyase, reduced renal injuries due to cisplatin in rats, suggesting involvement of C-S lyase. On day 5 following a bolus cisplatin injection, three species showed in vivo nephrotoxic potentials in the order of rats>mice=rabbits (the highest to lowest), based on body surface. The levels of renal Pt residue at the nephrotoxic dose were in order of rabbits>rats>mice. Meanwhile, the activity of endogenous (basal) mitochondrial aspartate aminotransferase (AST), one of the C-S lyases, in the renal cortex of naive animals was rats>mice=rabbits. In a qualitative Western blot analysis, expression of mitochondrial C-S lyase in the kidney was observed at approximately 37kDa in all five species used. In in vitro studies, the cytotoxicity of cisplatin was dependent on the expression level of C-S lyase mRNA in the respective renal cells. These results demonstrate that species differences in cisplatin nephrotoxicity are attributable to an interaction of renal Pt transition with C-S lyase activity.

Dental care needs, use and expenditures among U.S. children with and without special health care needs.

BACKGROUND: Controversy exists in the literature about whether dental care needs, use and expenditures differ between children with and without special health care needs (SHCN). METHODS: The authors used data from the 2005 Medical Expenditure Panel Survey (MEPS) for children younger than 18 years. The MEPS questionnaire included the Children with Special Health Care Needs Screener, which defines a child as having SHCN if he or she meets at least one of five specific criteria. Using bivariate and multivariable regression analyses, the authors evaluated the effect of SHCN on unmet dental care needs, type of dental care received and average dental care expenditures. RESULTS: Children with special health care needs (CSHCN) had an adjusted odds ratio (AOR) of 1.49 (95 percent confidence interval [CI] = 1.09-2.05) of having unmet dental care needs compared with children without SHCN, and CSHCN who met four or five screener criteria had an AOR of 2.2 (95 percent CI = 1.16-4.20). CSHCN used more dental care services and were more likely to receive only nonpreventive care. Average dental care expenditures were not statistically different between CSHCN and children without SHCN, and there was variability among CSHCN in unmet dental care needs and use. CONCLUSIONS: Unmet dental care needs are associated independently with SHCN status and complexity (based on the number of screener criteria the child met). The CSHCN populations in MEPS varied in their ability to obtain and use needed dental care services. Practice Implications. It is important to consider the diversity of CSHCN when developing systems of dental care for this population.

The association between enamel fluorosis and dental caries in U.S. schoolchildren.

BACKGROUND: The authors assessed the association between enamel fluorosis and dental caries to determine if there is any beneficial effect of enamel fluorosis in U.S. schoolchildren. METHODS: The authors used data from a National Institute of Dental Research survey of the oral health of U.S. children conducted in 1986 and 1987 to determine the prevalence of caries and mean decayed, missing or filled surfaces on permanent maxillary right first molars in children 7 to 17 years of age who had a history of a single residence. (To date, this is the only national oral health data set in the United States with detailed information on fluoride exposures.) They examined the association between enamel fluorosis and caries using logistic regression analysis, controlling for potential confounders in communities with water at or above optimal fluoridation levels and in communities with nonfluoridated or suboptimally fluoridated water. RESULTS: Permanent maxillary right first molars with fluorosis consistently had lower levels of caries experience than did normal molars. Adjusted odds ratios for caries prevalence in molars with fluorosis were 0.71 (95 percent confidence interval [CI], 0.56-0.89) in communities with nonfluoridated or suboptimally fluoridated water and 0.89 (95 percent CI, 0.74-1.06) in communities with water at or above optimal fluoridation levels. CONCLUSION: This study's findings suggest that molars with fluorosis are more resistant to caries than are molars without fluorosis. CLINICAL IMPLICATIONS: The results highlight the need for those considering policies regarding reduction in fluoride exposure to take into consideration the caries-preventive benefits associated with milder forms of enamel fluorosis.

Effect of tobacco smoke on the oral health of U.S. women of childbearing age.

OBJECTIVES: To determine the oral health status of US women of childbearing age and to analyze the effect of tobacco smoke on their oral health. METHODS: Data from the 1999-2004 National Health and Nutrition Examination Survey were evaluated for women 15-44 years of age. The association of exposure to tobacco smoke with untreated caries, mean DMFS, gingivitis, and periodontitis were examined in bivariate and regression analyses controlling for potential confounders. RESULTS: The prevalence of untreated caries was 25%, for gingivitis 49%, and for periodontitis 6%. After adjusting for potential confounders, self-reported current smoking was a strong independent risk indicator for untreated caries, periodontitis, and to a lesser extent for greater DMFS count. Women with detectable cotinine levels below 15 ng/mL presented with an increased risk for gingivitis. Independent factors associated with increased risk for untreated caries were being Black, having less than a high school education, Medicaid or no health insurance, previous live births, and infrequent and episodic dental visits. Characteristics associated with gingivitis were being Mexican-American, obese, pregnant, and having infrequent dental visits. Older age, no insurance, and the last dental visit for treatment were independently associated with periodontitis. CONCLUSIONS: Dental caries and periodontitis were prevalent among certain subgroups of women of reproductive age. Smoking was found to be a significant risk indicator for various negative oral health outcomes. Barriers to accessing to dental care that were manifested by untreated caries among Black women, mothers, and Medicaid beneficiaries must be better understood.

Oral health during perinatal period in New York State. Evaluation of 2005 Pregnancy Risk Assessment Monitoring System data.

Perinatal health and oral health behaviors and experiences were evaluated using the 2005 New York State Pregnancy Risk Assessment Monitoring System data. Pregnancy is an opportune time for oral health promotion; however, the data indicated that a substantial proportion of women reportedly did not make a dental visit and/or receive any oral health advice during pregnancy. We discuss the challenges, opportunities and next steps for promoting perinatal oral health programs in New York State.

Implementing an oral health program in a group prenatal practice.

The Rochester Adolescent Maternity Program (RAMP) has incorporated evidence-based oral health guidelines into its prenatal care. These guidelines focus on tracking oral health services, screening and triaging prenatal patients, and providing patient and staff with the education needed to decrease oral health risks to mother, fetus, and baby. The RAMP process serves as a model for promoting quality oral health practices in pregnant teenagers and their babies.

Association between infant breastfeeding and early childhood caries in the United States.

OBJECTIVE: Despite limited epidemiologic evidence, concern has been raised that breastfeeding and its duration may increase the risk of early childhood caries. The objective of this study was to assess the potential association of breastfeeding and other factors with the risk for early childhood caries among young children in the United States. METHODS: Data about oral health, infant feeding, and other child and family characteristics among children 2 to 5 years of age (N = 1576) were extracted from the 1999-2002 National Health and Nutrition Examination Survey. The association of breastfeeding and its duration, as well as other factors that previous research has found associated with early childhood caries, was examined in bivariate analyses and by multivariable logistic and Poisson regression analyses. RESULTS: After adjusting for potential confounders significant in bivariate analyses, breastfeeding and its duration were not associated with the risk for early childhood caries. Independent associations with increased risk for early childhood caries were older child age, poverty, being Mexican American, a dental visit within the last year, and maternal prenatal smoking. Poverty and being Mexican American also were independently associated with severe early childhood caries, whereas characteristics that were independently associated with greater decayed and filled surfaces on primary teeth surfaces were poverty, a dental visit within the last year, 5 years of age, and maternal smoking. CONCLUSIONS: These data provide no evidence to suggest that breastfeeding or its duration are independent risk factors for early childhood caries, severe early childhood caries, or decayed and filled surfaces on primary teeth. In contrast, they identify poverty, Mexican American ethnic status, and maternal smoking as independent risk factors for early childhood caries, which highlights the need to target poor and Mexican American children and those whose mothers smoke for early preventive dental visits.

The effect of sevoflurane on ciliary motility in rat cultured tracheal epithelial cells: a comparison with isoflurane and halothane.

Halothane and isoflurane potently depress airway ciliary motility. We compared the effect of sevoflurane on ciliary beat frequency (CBF) with that of halothane and isoflurane using purified and cultured rat tracheal epithelial cells. Rat tracheal epithelial cells were isolated from adult male Sprague-Dawley rats to establish an air-liquid interface culture. Apical surfaces of the cells were exposed to a fresh gas containing humidified and warmed (25 degrees C) air (vehicle) with or without sevoflurane (0%-4%), halothane (0%-2%), or isoflurane (0%-2%). The images of motile cilia were videotaped and CBF was analyzed using a computer. Baseline CBF (= 100%) and CBF 30 min after the exposure were measured. CBF 30 min after vehicle exposure was 101% +/- 4% (mean +/- sd). Exposures to 0.25%-2% sevoflurane did not change CBF significantly, although exposures to 0.25%-2% halothane or isoflurane decreased CBF dose-dependently. CBFs 30 min after exposures to 2% of sevoflurane, halothane, and isoflurane were 97% +/- 9%, 56% +/- 14%, and 47% +/- 6%, respectively (n = 5 each). Sevoflurane 4% reduced CBF significantly but slightly (84% +/- 2%, n = 5). These results show that sevoflurane has a direct cilioinhibitory action but its action is much weaker than that of halothane and isoflurane in isolated rat tracheal epithelial cells.

Single nucleotide polymorphisms and haplotypes of protein C and protein S genes in the Thai population.

Protein C (PC) and protein S (PS) play key roles in an anticoagulant pathway in order to control the haemostatic system. We identified single nucleotide polymorphisms (SNPs) and/or haplotypes in the promotor and exons of the whole PC and PS genes and in the 3'-untranslated region of the PS gene in 55 Thai individuals. The PC gene revealed 10 haplotypes. One synonymous SNP at 2196 was found in the normal Thai population with a minor allele frequency of 4.90%. One homozygous mutation in exon 7, R147W, co-segregated with the synonymous SNP 2196 (homozygote) of the PC gene, resulting in decreased PC activity and antigenic levels. The PS gene revealed three haplotypes with two frequent dimorphisms in exon 15 and the 3'-untranslated region. The most frequent haplotype in the PS gene was H3 (wild type). There was no correlation between the haplotypes of PC and PS genes with functional and antigenic levels of PC and PS.