Lindsey M. King

Discussion of fertility preservation with newly diagnosed patients: oncologists’ views

IntroductionAlthough physician discussion with patients regarding fertility preservation (FP) options prior to cancer treatment can provide important information for survivors concerning their future fertility, little is known about the extent to which physicians discuss FP with patients. This qualitative study sought to identify current physician FP communication practices and determine factors that may impact communication efforts regarding FP.Materials and methodsQualitative data were collected using semi structured interviews with 16 physicians practicing at a major cancer center in the South.ResultsAll providers were board certified in medical oncology, radiation oncology or surgical oncology. The main factors that emerged from qualitative analysis included distinct variations in quality of discussion about FP, knowledge of FP resources, attitudes, practice behaviors and perceptions of patient characteristics.DiscussionWhile most physicians discussed potential fertility loss as a side effect of cancer treatment, few provided information to patients about preserving fertility. Patient characteristics such as gender and cancer site may impact the discussion, as well as system factors such as costs of procedures and access to FP resources. Education and training for physicians about FP options for cancer patients, particularly females, may promote discussion of FP. In addition, system barriers related to availability and affordability of FP resources must also be addressed.Implications for cancer survivorsPhysicians should consider providing patients with timely, understandable information related to their FP options, prior to the administration of treatment. Such discussions may lead to improved quality of life for individuals as they transition from patients to survivors.

Attitudes of high-risk women toward preimplantation genetic diagnosis

OBJECTIVE To explore the knowledge and attitudes toward preimplantation genetic diagnosis (PGD) of women who have been personally affected by hereditary breast and ovarian cancer. DESIGN A 33-item quantitative survey covering five domains, including demographics, knowledge and attitudes about PGD, usage of PGD, and informational needs. SETTING Attendees of a national conference for individuals and families affected by hereditary breast and ovarian cancer participated in the survey. PATIENT(S) Not applicable. INTERVENTION(S) Not applicable. MAIN OUTCOME MEASURE(S) Frequencies and proportions were summarized for all variables, and Fishers exact tests were conducted to test association between two discrete variables. RESULT(S) Of the women surveyed, only 32% had ever heard of PGD before taking the survey. None of the women surveyed had actually used PGD, and 44% believed they would not use it in the future. However, 57% of attendees believed that PGD was an acceptable option for high-risk individuals, and 74% believed that high-risk individuals should be given information about PGD. CONCLUSION(S) Health care professionals who serve cancer patients should consider incorporating information about PGD into patient education. Further research is needed to survey physicians and genetic counselors about their knowledge and opinions of PGD.

Impact of intrauterine tobacco exposure on fetal telomere length

OBJECTIVE We sought to investigate whether maternal smoking during pregnancy affects telomere length of the fetus. STUDY DESIGN Pregnant women were recruited on hospital admission at delivery. A self-report questionnaire and salivary cotinine test were used to confirm tobacco exposure. Neonatal umbilical cord blood samples were collected, and genomic DNA was isolated from cord blood leukocytes and was analyzed for fetal telomere length based on quantitative polymerase chain reaction. A ratio of relative telomere length was determined by telomere repeat copy number and single copy gene copy number (T/S ratio) and used to compare the telomere length of active, passive, and nonsmokers. Bootstrap and analysis of variance statistical methods were used to evaluate the relationship between prenatal smoking status and fetal telomere length. RESULTS Of the 86 women who were included in this study, approximately 69.8% of the participants were covered by Medicaid, and 55.8% of the participants were black or Hispanic. The overall mean T/S ratio was 0.8608 ± 1.0442. We noted an inverse relationship between smoking and fetal telomere length in a dose-response pattern (T/S ratio of nonsmokers that was more than passive smokers that was more than active smokers). Telomere length was significantly different for each pairwise comparison, and the greatest difference was between active and nonsmokers. CONCLUSION Our results provide the first evidence to demonstrate a positive association between shortened fetal telomere length and smoking during pregnancy. Our findings suggest the possibility of early intrauterine programming for accelerated aging that is the result of tobacco exposure.

Conflict between values and technology: perceptions of preimplantation genetic diagnosis among women at increased risk for hereditary breast and ovarian cancer

Members of families affected by hereditary cancer are often concerned about passing on risk to offspring. Preimplantation genetic diagnosis is a procedure performed to identify embryos that inherit mutations placing them at risk for hereditary conditions. Little is known about attitudes toward the use of this technology among individuals at risk for hereditary breast and ovarian cancer. We sought to determine high risk women’s attitudes. This study is a qualitative examination of comments from women who participated in an online survey regarding knowledge and attitudes of preimplantation genetic diagnosis among individuals affected by hereditary breast and ovarian cancer. More than half the respondents held less favorable attitudes about the use of preimplantation genetic diagnosis for hereditary breast and ovarian cancer for both themselves and others. However, among the women who felt favorable about its usage, the majority said it became a new option for them to pursue parenthood whereas previously they had opted to not have a biological child. The high percentage of respondents who have never heard of preimplantation genetic diagnosis and who were in favor of this technology for hereditary breast and ovarian cancer indicates the need for educational campaigns to increase awareness and provide information about the procedure, access and affordability. Further research is needed to determine how this population would like this information presented to them and how best to instruct health care professionals to present this topic to women who do not know to ask about it.

Association Between Maternal-Perceived Psychological Stress and Fetal Telomere Length.

Objective Our study aimed to investigate the association between maternal-perceived psychological stress and fetal telomere length. Methods We recruited women in labor upon hospital delivery admission. Based on responses to the Perceived Stress Scale, we categorized participants as having “high,” “normal,” or “low” perceived stress. We collected umbilical cord blood samples (N = 71) and isolated genomic DNA from cord blood leukocytes using quantitative polymerase chain reaction. We used a ratio of relative telomere length derived by telomere-to-single-copy gene ratio (T/S ratio). We applied analysis of variance and bootstrapping statistical procedures. Results Sixteen (22.5%) women were classified as having low perceived stress, 42 (59.2%) were classified as having normal perceived stress, and 13 (18.3%) were classified as having high perceived stress. Fetal telomere length differed significantly across the three stress groups in a dose–response pattern (T/S ratio of those with low perceived stress was greater than those with normal perceived stress, which was greater than those with high perceived stress [P < 0.05]). Conclusions Our findings support our hypothesis that maternal-perceived psychological stress during pregnancy is associated with shorter fetal telomere length and suggest maternal stress as a possible marker for early intrauterine programming for accelerated chromosomal aging.

A positive association between umbilical cord RBC folate and fetal TL at birth supports a potential for fetal reprogramming

Telomere length (TL) has been studied extensively in adults; however, limited information exists regarding maternal influences on TL in utero. The objective of this study was to investigate the relationship between fetal red blood cell (RBC) folate levels, a surrogate measure for maternal folate levels, and TL. We hypothesized that umbilical cord RBC folate concentrations would positively correlate with fetal TL. Data for this analysis were collected as part of a prospective cohort study that recruited pregnant women upon admission into labor and delivery. Cord blood was collected for 96 maternal-fetal dyads, and DNA analysis was performed using quantitative polymerase chain reaction. The telomere to single copy gene ratio method was used to determine TL, and RBC folate levels were measured. Statistical analysis was conducted by incorporating a bootstrapping approach into generalized linear modeling-based analyses. Consistent significant positive correlations were observed between RBC folate and TL (telomere to single copy gene ratio) with 9880 of the 10000 (98.8%) iterations performed having a P value less than .05. Our study shows a positive association between umbilical cord RBC folate and fetal TL at birth. These findings may provide a pathway of understanding and preventing adult-onset disease and mortality through intrauterine reprogramming.

Community-Based Decision Making and Priority Setting Using the R Software: The Community Priority Index

This paper outlines how to compute community priority indices in the context of multicriteria decision making in community settings. A simple R function was developed and validated with community needs assessment data. Particularly, the first part of this paper briefly overviews the existing methods for priority setting and reviews the utility of a multicriteria decision-making approach for community-based prioritization. The second part illustrates how community priority indices can be calculated using the freely available R program to handle community data by showing the computational and mathematical steps of CPI (Community Priority Index) with bootstrapped 95% confidence intervals.

Homocysteine Levels Are not Related to Telomere Length in Cord Blood Leukocytes of Newborns.

Objective Elevated homocysteine (HC) levels and/or shortened telomere length (TL) are associated with adverse medical conditions. Our objective is to investigate the relationship between HC and TL in cord blood leukocytes of newborns. Study Design This is a nested study from a prospective cohort from 2011 to 2012 in pregnant women admitted for delivery at a university-affiliated hospital. Cord blood was collected at delivery and genomic DNA was analyzed using quantitative PCR. The telomere-to-single copy gene ratio method was employed to quantify TL. Newborn HC levels were measured. generalized linear regression modeling (GLM) and bootstrap statistical analyses were performed. Results Seventy-seven maternal-fetal dyads with a mean gestational age of 39 weeks were included. The distribution of the coefficient of homocysteine showed most values greater than zero demonstrating that homocysteine had a positive relationship with TL. In 915 of 10,000 (9.15%) iterations, the p-value was < 0.05 demonstrating a positive effect. Conclusion Increasing newborn concentrations of HC are not associated with decreasing TL. Larger, prospective studies are needed to confirm these findings and long-term implications.

Evidence of altered brain regulatory gene expression in tobacco-exposed fetuses

Abstract Aim: We sought to determine the association between prenatal smoking status and expression of fetal brain regulatory genes. Methods: At delivery, we collected information from parturient women on prenatal smoking habits and analyzed salivary cotinine levels. We obtained neonatal umbilical cord blood and extracted total RNA. We then employed the quantitative polymerase chain reaction (QPCR) analyses and the comparative CT method to calculate the relative gene expression of selected fetal brain regulatory genes responsible for (1) brain growth (brain-derived neutrotrophic factor, BDNF), (2) myelination (proteolipidic protein 1, PLP1 and myelin basic protein, MBP), and (3) neuronal migration and cell-cell interactions during fetal brain development or RLN. The χ2-test, analysis of variance (ANOVA), and the Grubb test were used to evaluate the relationship between prenatal smoking status and relative gene expression levels. Further analysis using bootstrapping was performed to assess the precision of our estimates. Results: Of the 39 maternal-infant dyads included in this study, 25.6% were non-smokers, 43.6% were passive smokers and 30.8% were active smokers. The results showed down-regulation of the selected fetal brain regulatory genes among active smokers. Conclusions: These findings represent preliminary evidence in humans that intrauterine tobacco exposure impacts fetal brain programming. Future studies are warranted to examine whether our findings represent potential mechanisms through which adverse childhood/adult-onset cognitive and behavioral outcomes that have been previously linked to intrauterine exposure occur.

Usability of Low-Cost Android Data Collection System for Community-Based Participatory Research

Background: Android tablet computers can be valuable tools for data collection, but their usability has not been evaluated in community-based participatory research (CBPR).Objectives: This article examines the usability of a low-cost bilingual touchscreen computerized survey system using Android tablets, piloted with a sample of 201 community residents in Tampa, Florida, from November 2013 to March 2014.Methods: Needs assessment questions were designed with the droidSURVEY software, and deployed using Android tablet computers. In addition, participants were asked questions about system usability.Results: The mean system usability was 77.57 ± 17.66 (range, 0–100). The mean completion time for taking the 63 survey questions in the needs assessment was 23.11 ± 9.62 minutes. The survey completion rate was optimal (100%), with only 6.34% missingness per variable. We found no sociodemographic differences in usability scores.Conclusions: Our findings indicate that Android tablets could serve as useful tools in CBPR studies.