29 results on '"Simon CD"'
Search Results
2. Fatherhood and Cardiovascular Health, Disease, and Mortality: Associations From the Multi-Ethnic Study of Atherosclerosis.
- Author
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Parker JJF, Garfield CF, Simon CD, Colangelo LA, Bancks MP, and Allen NB
- Abstract
Introduction: Emerging literature links fatherhood to men's health but lacks comprehensive assessment of health outcomes, especially among multiethnic populations. This study's objective was to evaluate the associations of fatherhood (age at onset and status) with cardiovascular health scores, incident cardiovascular disease, cardiovascular disease death, and all-cause mortality, examining differences by race/ethnicity., Methods: The study sample included men from Multi-Ethnic Study of Atherosclerosis, prospective cohort study that enrolled adults aged 45-84 years without known cardiovascular disease at baseline. Cardiovascular health was defined using the American Heart Association's Life's Essential 8 scores (0-100), excluding sleep (cardiovascular health score)., Results: In this sample of 2,814 men, mean age at cardiovascular health assessment was 62.2 years, 82% were fathers, 24% self-identified as Black, 13% self-identified Chinese, 22% self-identified Hispanic, and 41% self-identified White. Fathers who were aged <20 years and 20-24 years at their oldest child's birth had worse overall cardiovascular health than fathers who were aged >35 years (adjusted mean score of 61.1 vs 64.7 [ p =0.01] and 61.0 vs 64.7 [ p <0.001], respectively). Fathers had worse overall cardiovascular health (adjusted mean score of 63.2 vs 64.7, p =0.03) and more nicotine exposure (63.1 vs 66.6, p =0.04) than nonfathers. In age-adjusted models, fathers overall (hazard ratio=0.82; 95% CI=0.69, 0.98) and Black fathers (hazard ratio=0.73; 95% CI=0.53, 0.999) had a lower rate of all-cause mortality rate than nonfathers, but these associations were no longer significant in fully adjusted models., Conclusions: Fatherhood is a social determinant of health, and understanding its influence may provide opportunities to improve men's health, particularly among men of color., (© 2024 The Authors.)
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- 2024
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3. Teleworking, Parenting Stress, and the Health of Mothers and Fathers.
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Parker JJ, Garfield CF, Simon CD, Bendelow A, Heffernan ME, Davis MM, and Kan K
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- Female, Humans, Male, Mothers, Fathers, Parenting, Teleworking
- Published
- 2023
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4. Mental health as a family experience: Relationship of paternal characteristics with maternal perinatal depressive symptoms in a matched sample.
- Author
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Simon CD, Bendelow A, Bryan M, and Garfield CF
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- Male, Infant, Female, Pregnancy, Humans, Mental Health, Fathers psychology, Parturition psychology, Mothers psychology, Depression diagnosis, Depression epidemiology, Depression psychology, Depression, Postpartum diagnosis, Depression, Postpartum epidemiology, Depression, Postpartum psychology
- Abstract
The present study investigates the relationship between perinatal maternal depressive symptoms and paternal factors using linked maternal-paternal survey data. From October 2018 to July 2019, among a representative sample and 2-6 months following the birth of an infant, mothers and fathers completed surveys and reported depressive symptoms. Results from the linked dyadic data (n = 243) show the prevalence of maternal depressive symptoms, both overall (16%) and by marital status and paternal health care involvement. Viewing mental health as a family experience may further understanding of postpartum maternal mental illness., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.)
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- 2023
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5. Pregnancy Risk Assessment Monitoring System for Dads: A piloted randomized trial of public health surveillance of recent fathers' behaviors before and after infant birth.
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Garfield CF, Simon CD, Stephens F, Castro Román P, Bryan M, Smith RA, Kortsmit K, Salvesen von Essen B, Williams L, Kapaya M, Dieke A, Barfield W, and Warner L
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- Adult, Female, Georgia, Humans, Male, Mental Health statistics & numerical data, Parenting psychology, Paternal Behavior psychology, Pilot Projects, Pregnancy, Surveys and Questionnaires, Fathers psychology, Public Health Surveillance methods, Risk Assessment methods
- Abstract
Background: Becoming a father impacts men's health and wellbeing, while also contributing to the health and wellbeing of mothers and children. There is no large-scale, public health surveillance system aimed at understanding the health and behaviors of men transitioning into fatherhood. The purpose of this study was to describe piloted randomized approaches of a state-based surveillance system examining paternal behaviors before and after their infant's birth to better understand the health needs of men and their families during the transition to parenthood., Methods: During October 2018-July 2019, 857 fathers in Georgia were sampled 2-6 months after their infant's birth from birth certificates files and surveyed via mail, online or telephone, in English or Spanish, using two randomized approaches: Indirect-to-Dads and Direct-to-Dads. Survey topics included mental and physical health, healthcare, substance use, and contraceptive use., Findings: Weighted response rates (Indirect-to-Dads, 33%; Direct-to-Dads, 31%) and population demographics did not differ by approach. Respondents completed the survey by mail (58%), online (28%) or telephone (14%). Among 266 fathers completing the survey, 55% had a primary care physician, and 49% attended a healthcare visit for themselves during their infant's mother's pregnancy or since their infant's birth. Most fathers were overweight or had obesity (70%) while fewer reported smoking cigarettes (19%), binge drinking (13%) or depressive symptoms (10%) since their infant's birth., Conclusions: This study tests a novel approach for obtaining population-based estimates of fathers' perinatal health behaviors, with comparable response rates from two pragmatic approaches. The pilot study results quantify a number of public health needs related to fathers' health and healthcare access., Competing Interests: The authors have declared that no competing interests exist.
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- 2022
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6. Kangaroo father care: A pilot feasibility study of physiologic, biologic, and psychosocial measures to capture the effects of father-infant and mother-infant skin-to-skin contact in the Neonatal Intensive Care Unit.
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Vogl JL, Dunne EC, Liu C, Bradley A, Rwei A, Lonergan EK, Hopkins BS, Kwak SS, Simon CD, Rand CM, Rogers JA, Weese-Mayer DE, and Garfield CF
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- Child, Fathers psychology, Feasibility Studies, Female, Humans, Infant, Newborn, Infant, Premature, Intensive Care Units, Neonatal, Male, Mothers psychology, Biological Products, Kangaroo-Mother Care Method methods, Kangaroo-Mother Care Method psychology
- Abstract
Robust literature supports the positive effects of kangaroo mother care (KMC) on infant physiologic stability and parent-infant bonding in the Neonatal Intensive Care Unit (NICU). Comparatively little is known about kangaroo father care (KFC) in the NICU, and KFC implementation has been limited. Our pilot feasibility study objective was to examine KFC effects on premature infants and fathers as compared to KMC. Parents of preterm NICU infants independently completed a 90-min Kangaroo Care (KC) session on consecutive days. Infant heart rate variability (HRV) and apnea/periodicity measures were compared (pre-KC to KC; KFC to KMC). Additionally, we assessed the feasibility of administering three psychosocial questionnaires to fathers and mothers in the NICU and after discharge. Ten preterm infants completed 20 KC sessions (33
4/7 -374/7 weeks post-menstrual age). Results demonstrated similar infant physiologic responses between KMC and KFC, including significant differences in measures of HRV (p < .05) between KC and non-KC periods. Eighty-eight percentage of questionnaires administered were completed, supporting the utilization of these instruments in future research of this population. If confirmed, these preliminary results identify an opportunity to objectively assess KFC effects, supporting the development of empirically based KFC programs benefitting NICU families., (© 2021 Wiley Periodicals LLC.)- Published
- 2021
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7. It's time to phase out "serologic weak D phenotype" and resolve D types with RHD genotyping including weak D type 4.
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Flegel WA, Denomme GA, Queenan JT, Johnson ST, Keller MA, Westhoff CM, Katz LM, Delaney M, Vassallo RR, Simon CD, and Sandler SG
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- Alleles, Genotype, Humans, Phenotype, Rh-Hr Blood-Group System genetics, Rho(D) Immune Globulin genetics
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- 2020
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8. Pregnancy Risk Assessment Monitoring System for Dads: Public Health Surveillance of New Fathers in the Perinatal Period.
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Garfield CF, Simon CD, Harrison L, Besera G, Kapaya M, Pazol K, Boulet S, Grigorescu V, Barfield W, and Warner L
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- Female, Humans, Male, Pregnancy, Risk Assessment, Fathers, Public Health Surveillance
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- 2018
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9. Damage Control Resuscitation.
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Cap AP, Pidcoke HF, Spinella P, Strandenes G, Borgman MA, Schreiber M, Holcomb J, Tien HC, Beckett AN, Doughty H, Woolley T, Rappold J, Ward K, Reade M, Prat N, Ausset S, Kheirabadi B, Benov A, Griffin EP, Corley JB, Simon CD, Fahie R, Jenkins D, Eastridge BJ, and Stockinger Z
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- Bloodless Medical and Surgical Procedures methods, Homeostasis physiology, Humans, Military Medicine methods, Military Medicine standards, Shock, Hemorrhagic drug therapy, Wounds and Injuries therapy, Bloodless Medical and Surgical Procedures standards, Resuscitation methods
- Abstract
Damage control resuscitation (DCR) is a strategy for resuscitating patients from hemorrhagic shock to rapidly restore homeostasis. Efforts are focused on blood product transfusion with whole blood or component therapy closely approximating whole blood, limited use of crystalloid to avoid dilutional coagulopathy, hypotensive resuscitation until bleeding control is achieved, empiric use of tranexamic acid, prevention of acidosis and hypothermia, and rapid definitive surgical control of bleeding. Patients receiving uncrossmatched Type O blood in the emergency department and later receiving cumulative transfusions of 10 or more red blood cell units in the initial 24-hour post-injury (massive transfusion) are widely recognized as being at increased risk of morbidity and mortality due to exsanguination. Ideally, these patients should be rapidly identified, however anticipating transfusion needs is challenging. Useful indicators of massive transfusion reviewed in this guideline include: systolic blood pressure <110 mmHg, heart rate > 105 bpm, hematocrit <32%, pH < 7.25, injury pattern (above-the-knee traumatic amputation especially if pelvic injury is present, multi-amputation, clinically obvious penetrating injury to chest or abdomen), >2 regions positive on Focused Assessment with Sonography for Trauma (FAST) scan, lactate concentration on admission >2.5, admission international normalized ratio ≥1.2-1.4, near infrared spectroscopy-derived StO2 < 75% (in practice, rarely available), BD > 6 meq/L. Unique aspects of out-of-hospital DCR (point of injury, en-route, and remote DCR) and in-hospital (Medical Treatment Facilities: Role 2b/Forward surgical teams - role 3/ combat support hospitals) are reviewed in this guideline, along with pediatric considerations.
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- 2018
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10. Stress From the Neonatal Intensive Care Unit to Home: Paternal and Maternal Cortisol Rhythms in Parents of Premature Infants.
- Author
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Garfield CF, Simon CD, Rutsohn J, and Lee YS
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- Adult, Cohort Studies, Female, Humans, Infant, Newborn, Intensive Care Units, Neonatal, Male, Young Adult, Circadian Rhythm physiology, Hydrocortisone analysis, Infant, Very Low Birth Weight psychology, Saliva metabolism, Stress, Psychological metabolism
- Abstract
To examine cortisol diurnal rhythms over the transition from the critical care setting to home for fathers and mothers of very low-birth-weight infants, including how cortisol is associated with psychosocial stress and parenting sense of competence. This cohort study in a level III neonatal intensive care unit and the general community had 86 parents complete salivary collection and self-reported psychosocial measures. Salivary samples were collected 3 times a day on the day before discharge, and on 3 subsequent days at home. Self-report measures included the Perceived Stress Scale and the Parenting Sense of Competence Scale, which measure parenting satisfaction. Fathers showed increased physiologic stress over the transition home, reflected by flattening of slopes, lower wakeup, and higher bedtime cortisol. Mothers reporting increases in perceived stress over the transition home had higher bedtime cortisol, suggesting a link between higher perceived stress and higher physiologic stress. Results were significant after controlling for breastfeeding, insurance status, and gestational age. This study examined a physiologic marker of stress in parents with very low-birth-weight infants, finding sex disparities in diurnal cortisol patterns during the transition from neonatal intensive care unit to the community. Fathers may be especially susceptible to stressors during this transition.
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- 2018
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11. Transcription Factor-Mediated Control of Anthocyanin Biosynthesis in Vegetative Tissues.
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Outchkourov NS, Karlova R, Hölscher M, Schrama X, Blilou I, Jongedijk E, Simon CD, van Dijk ADJ, Bosch D, Hall RD, and Beekwilder J
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- Anthocyanins chemistry, Biosynthetic Pathways, Dexamethasone pharmacology, Germination, Solanum lycopersicum chemistry, Solanum lycopersicum physiology, Organ Specificity, Plant Leaves chemistry, Plant Leaves genetics, Plant Leaves physiology, Plant Proteins genetics, Plant Proteins metabolism, Plant Roots chemistry, Plant Roots genetics, Plant Roots physiology, Plant Transpiration, Promoter Regions, Genetic genetics, Seeds chemistry, Seeds genetics, Seeds physiology, Transcription Factors genetics, Anthocyanins biosynthesis, Gene Expression Regulation, Plant, Solanum lycopersicum genetics, Transcription Factors metabolism
- Abstract
Plants accumulate secondary metabolites to adapt to environmental conditions. These compounds, here exemplified by the purple-colored anthocyanins, are accumulated upon high temperatures, UV-light, drought, and nutrient deficiencies, and may contribute to tolerance to these stresses. Producing compounds is often part of a more broad response of the plant to changes in the environment. Here we investigate how a transcription-factor-mediated program for controlling anthocyanin biosynthesis also has effects on formation of specialized cell structures and changes in the plant root architecture. A systems biology approach was developed in tomato ( Solanum lycopersicum ) for coordinated induction of biosynthesis of anthocyanins, in a tissue- and development-independent manner. A transcription factor couple from Antirrhinum that is known to control anthocyanin biosynthesis was introduced in tomato under control of a dexamethasone-inducible promoter. By application of dexamethasone, anthocyanin formation was induced within 24 h in vegetative tissues and in undifferentiated cells. Profiles of metabolites and gene expression were analyzed in several tomato tissues. Changes in concentration of anthocyanins and other phenolic compounds were observed in all tested tissues, accompanied by induction of the biosynthetic pathways leading from Glc to anthocyanins. A number of pathways that are not known to be involved in anthocyanin biosynthesis were observed to be regulated. Anthocyanin-producing plants displayed profound physiological and architectural changes, depending on the tissue, including root branching, root epithelial cell morphology, seed germination, and leaf conductance. The inducible anthocyanin-production system reveals a range of phenomena that accompanies anthocyanin biosynthesis in tomato, including adaptions of the plants architecture and physiology., (© 2018 American Society of Plant Biologists. All Rights Reserved.)
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- 2018
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12. High paternal testosterone may protect against postpartum depressive symptoms in fathers, but confer risk to mothers and children.
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Saxbe DE, Schetter CD, Simon CD, Adam EK, and Shalowitz MU
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- Adult, Aggression psychology, Cross-Sectional Studies, Depression, Postpartum metabolism, Depression, Postpartum prevention & control, Female, Humans, Infant, Interpersonal Relations, Male, Mothers, Parturition psychology, Pregnancy, Risk Factors, Saliva chemistry, Saliva metabolism, Stress, Psychological metabolism, Stress, Psychological prevention & control, Testosterone analysis, Young Adult, Child Abuse psychology, Depression metabolism, Depression prevention & control, Fathers psychology, Postpartum Period psychology, Spouse Abuse psychology, Testosterone metabolism
- Abstract
Following the birth of an infant, decreases in testosterone and increases in depressive symptoms have been observed in fathers. Paternal testosterone may reflect fathers' investment in pair-bonding and paternal caregiving and, as such, may be associated with maternal and familial well-being. This study tests associations between paternal testosterone, paternal and maternal postpartum depressive symptoms, and subsequent family functioning. Within 149 couples, fathers provided testosterone samples when infants were approximately nine months old and both parents reported on postpartum depressive symptoms at two, nine, and 15months postpartum. Fathers with lower aggregate testosterone reported more depressive symptoms at two and nine months postpartum. Mothers whose partners had higher evening testosterone reported more depressive symptoms at nine and 15months postpartum. Maternal relationship satisfaction mediated this effect, such that mothers with higher testosterone partners reported more relationship dissatisfaction, which in turn predicted more maternal depressive symptoms. Higher paternal testosterone and paternal depressive symptoms at nine months postpartum each independently predicted greater fathering stress at 15months postpartum. Higher paternal testosterone also predicted more mother-reported intimate partner aggression at 15months postpartum. In addition to linear relationships between testosterone and depression, curvilinear relationships emerged such that fathers with both low and high testosterone at nine months postpartum reported more subsequent (15-month) depressive symptoms and fathering stress. In conclusion, whereas higher paternal testosterone may protect against paternal depression, it contributed to maternal distress and suboptimal family outcomes in our sample. Interventions that supplement or alter men's testosterone may have unintended consequences for family well-being., (Copyright © 2017 Elsevier Inc. All rights reserved.)
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- 2017
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13. Prenatal Stress and the Cortisol Awakening Response in African-American and Caucasian Women in the Third Trimester of Pregnancy.
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Simon CD, Adam EK, Holl JL, Wolfe KA, Grobman WA, and Borders AE
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- Adult, Black or African American, Circadian Rhythm, Female, Humans, Hydrocortisone blood, Hypothalamo-Hypophyseal System physiology, Interviews as Topic, Pituitary-Adrenal System physiology, Pregnant Women ethnology, Saliva chemistry, Stress, Psychological psychology, United States, White People, Hydrocortisone metabolism, Pregnancy metabolism, Pregnancy Trimester, Third, Pregnant Women psychology, Stress, Psychological ethnology, Stress, Psychological physiopathology
- Abstract
Objectives Prior studies have shown significant racial disparities in psychosocial stressors for pregnant women. One physiological mechanism by which prenatal stress is expressed is via the stress-sensitive hormone cortisol, which itself differs by race. In this study, we examine differences in cortisol awakening response (CAR) for African-American and Caucasian pregnant women during late pregnancy, particularly whether racial disparities are evident after accounting for measures of psychosocial stress. Methods During their third trimester of pregnancy (32-40 weeks of gestation), we asked women to self-collect salivary samples at home over 2 days. We then measured salivary cortisol across the day for 30 pregnant women (18 Caucasian; 12 African-American) to examine the CAR by race and by multiple measures of self-reported psychosocial stress, including perceived discrimination. Results Although the women in our sample showed normative cortisol diurnal rhythms (high on waking, peak 30 min post-waking, lowest at bedtime), we found that African-American women had blunted (smaller) awakening responses compared to Caucasian women (p < 0.05). The CAR was significantly larger in Caucasian women compared to African-American women even after accounting for covariates in a multivariate equation. However, when we added measures of psychosocial stress to the multivariate equation, higher levels of stress were significantly associated with a smaller CAR (p < 0.05), and the association between maternal race and CAR was no longer significant. Conclusions Our results add to a growing body of evidence that racial differences in the activity of the hypothalamic-pituitary-adrenal axis are associated with psychosocial stress during pregnancy.
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- 2016
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14. Paternal and Maternal Testosterone in Parents of NICU Infants Transitioning Home.
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Garfield CF, Simon CD, Rutsohn J, and Lee YS
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- Adult, Breast Feeding methods, Female, Humans, Infant, Newborn, Infant, Premature metabolism, Infant, Premature psychology, Male, Patient Discharge, Statistics as Topic, Infant, Very Low Birth Weight metabolism, Infant, Very Low Birth Weight psychology, Parents psychology, Saliva metabolism, Social Adjustment, Stress, Psychological etiology, Stress, Psychological metabolism, Stress, Psychological rehabilitation, Testosterone analysis, Testosterone metabolism
- Abstract
Lower testosterone during the transition to new parenthood is considered beneficial to help parents better engage with their infants. No data currently exist studying salivary testosterone of parents with infants in neonatal intensive care units (NICUs) during the transition to home. We examine testosterone levels for parents of very low-birth-weight infants, including links between salivary testosterone and infant factors (such as breast-feeding), psychosocial stress, and changes over time.Testosterone salivary samples were assayed after self-collection by 86 parents (43 fathers and 43 mothers) with NICU infants at wakeup and bedtime prior to discharge and at 3 additional times at home. Self-reported survey measures, including psychosocial reports, were also collected at these times.Using multilevel modeling approaches, we report significant associations between paternal testosterone by time and psychosocial adjustment and between both paternal and maternal testosterone and infant feeding mode (P < .05). Results were significant after accounting for covariates. Our study is the first to examine the time course of diurnal testosterone for parents of premature infants over the transition home; as such, we suggest further research into better understanding parental physiology in this vulnerable parent population., Competing Interests: No authors have any conflicts of interest to disclose.
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- 2016
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15. Breastfeeding, Bed-Sharing, and Maternal Cortisol.
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Simon CD, Adam EK, McKinney CO, Krohn JB, and Shalowitz MU
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- Adolescent, Adult, Female, Humans, Parenting, Saliva metabolism, Young Adult, Beds, Breast Feeding statistics & numerical data, Hydrocortisone metabolism, Mother-Child Relations, Mothers statistics & numerical data, Sleep
- Abstract
Prior studies have found that close mother-child sleep proximity helps increase rates of breastfeeding, and breastfeeding itself is linked to better maternal and infant health. In this study, we examine whether breastfeeding and infant bed-sharing are related to daily rhythms of the stress-responsive hormone cortisol. We found that bed-sharing was related to flatter diurnal cortisol slopes, and there was a marginal effect for breastfeeding to predict steeper cortisol slopes. Furthermore, mothers who breastfeed but do not bed-share had the steepest diurnal cortisol slopes, whereas mothers who bed-shared and did not breastfeed had the flattest slopes (P < .05). These results were significant after controlling for subjective sleep quality, perceived stress, depression, socioeconomic status, race, and maternal age. Findings from this study indicate that infant parenting choices recommended for infants (breastfeeding and separate sleep surfaces for babies) may also be associated with more optimal stress hormone profiles for mothers., (© The Author(s) 2015.)
- Published
- 2016
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16. Optimizing Transfusion Ratios in Massive Transfusion Protocols: An Argument Against the 1:1:1 Dogma and Approach to Trauma Resuscitation.
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Gregory JA, Huitron SS, George AA, and Simon CD
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- Blood Component Transfusion standards, Blood Platelets, Erythrocytes, Hemostasis physiology, Humans, Plasma, Trauma Centers standards, Blood Component Transfusion methods, Practice Guidelines as Topic, Resuscitation methods
- Abstract
We believe that the current practice of transfusing red blood cells (RBCs), plasma, and platelets in a 1:1:1 ratio is not optimal in massive transfusion protocols (MTPs) and is based on a simple yet profound misconception regarding the preparation of component blood products. This 1:1:1 approach ignores the additional fluids added for anticoagulation and preservation of the components and assumes that there is a one-size-fits-all ratio that must be used across all types of trauma. In this article, we explain the rationale behind our conclusion with supporting figures and suggest that although the 1:1:1 ratio might be within the range of hemostasis, it falls near the lower cusp of hemostasis, making it less than ideal. The patient in mind was one in whom transfusion was expected to exceed 10 units of packed RBCs (pRBCs) in a combat environment where the situation was too hectic for additional testing. The goal was to keep the patient within a hemostatic range until the crisis phase was averted and the transition could then be made to goal-directed therapy with point-of-care testing., (Copyright© by the American Society for Clinical Pathology (ASCP).)
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- 2015
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17. It's time to phase in RHD genotyping for patients with a serologic weak D phenotype. College of American Pathologists Transfusion Medicine Resource Committee Work Group.
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Sandler SG, Flegel WA, Westhoff CM, Denomme GA, Delaney M, Keller MA, Johnson ST, Katz L, Queenan JT, Vassallo RR, and Simon CD
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- Amino Acid Substitution, Antibodies, Monoclonal immunology, Antigen-Antibody Reactions, Blood Group Incompatibility prevention & control, Epitopes immunology, Erythroblastosis, Fetal prevention & control, False Negative Reactions, Female, Genotype, Hemagglutination Tests, Humans, Infant, Newborn, Isoantibodies immunology, Male, Phenotype, Pregnancy, Rho(D) Immune Globulin, Sequence Deletion, Transfusion Reaction prevention & control, Blood Grouping and Crossmatching standards, Genotyping Techniques, Rh-Hr Blood-Group System genetics
- Published
- 2015
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18. Anti-c (Little c) IgM: An Uncommonly Observed but Expected Phenomenon.
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George AA and Simon CD
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- Adult, Female, Humans, Infant, Newborn, Pregnancy, Immunoglobulin M immunology, Isoantibodies immunology
- Abstract
The c-antigen (little c) is part of the Rh blood group system and is found in approximately 80% of the United States population. Anti-c antibody develops in individuals sensitized through previous exposure and is associated with acute and delayed hemolytic transfusion reactions as well as hemolytic disease of the newborn (HDN). Most antibodies produced against Rh antigens are of the immunoglobulin (Ig) G type. We present a case of anti-c in a 30-year-old white woman who was gravida 2 para 1 (G2P1), whose laboratory workup at the time of admission for delivery suggests recent exposure and seroconversion in the latter part of her pregnancy, with evidence of the expected but rarely demonstrated presence of anti-c IgM and IgG., (Copyright© by the American Society for Clinical Pathology (ASCP).)
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- 2014
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19. Low titer group O whole blood in emergency situations.
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Strandenes G, Berséus O, Cap AP, Hervig T, Reade M, Prat N, Sailliol A, Gonzales R, Simon CD, Ness P, Doughty HA, Spinella PC, and Kristoffersen EK
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- Antibodies immunology, Blood Group Incompatibility, Blood Grouping and Crossmatching, Emergency Medicine methods, Female, Humans, Male, Military Personnel, Patient Safety, Shock, Hemorrhagic therapy, Warfare, ABO Blood-Group System, Platelet Transfusion adverse effects, Transfusion Reaction
- Abstract
In past and ongoing military conflicts, the use of whole blood (WB) as a resuscitative product to treat trauma-induced shock and coagulopathy has been widely accepted as an alternative when availability of a balanced component-based transfusion strategy is restricted or lacking. In previous military conflicts, ABO group O blood from donors with low titers of anti-A/B blood group antibodies was favored. Now, several policies demand the exclusive use of ABO group-specific WB. In this short review, we argue that the overall risks, dangers, and consequences of "the ABO group-specific approach," in emergencies, make the use of universal group O WB from donors with low titers of anti-A/B safer. Generally, risks with ABO group-specific transfusions are associated with in vivo destruction of the red blood cells transfused. The risk with group O WB is from the plasma transfused to ABO-incompatible patients. In the civilian setting, the risk of clinical hemolytic transfusion reactions (HTRs) due to ABO group-specific red blood cell transfusions is relatively low (approximately 1:80,000), but the consequences are frequently severe. Civilian risk of HTRs due to plasma incompatible transfusions, using titered donors, is approximately 1:120,000 but usually of mild to moderate severity. Emergency settings are often chaotic and resource limited, factors well known to increase the potential for human errors. Using ABO group-specific WB in emergencies may delay treatment because of needed ABO typing, increase the risk of clinical HTRs, and increase the severity of these reactions as well as increase the danger of underresuscitation due to lack of some ABO groups. When the clinical decision has been made to transfuse WB in patients with life-threatening hemorrhagic shock, we recommend the use of group O WB from donors with low anti-A/B titers when logistical constraints preclude the rapid availability of ABO group-specific WB and reliable group matching between donor and recipient is not feasible.
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- 2014
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20. A life domains perspective on acculturation and psychological adjustment: a study of refugees from the former Soviet Union.
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Birman D, Simon CD, Chan WY, and Tran N
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- Adult, Aged, Anxiety psychology, Depression psychology, Emigration and Immigration, Female, Humans, Male, Middle Aged, Social Support, USSR ethnology, United States, Young Adult, Acculturation, Adaptation, Psychological, Personal Satisfaction, Refugees psychology, Stress, Psychological psychology
- Abstract
The study articulates a contextual approach to research on acculturation of immigrants, suggesting that the relationship between acculturation and adjustment is dependent on the cultural demands of the life domains considered. Specifically, the study investigated the mediating effects of adjustment in occupational and social life domains on the relationship between acculturation and psychological adjustment for 391 refugees from the former Soviet Union. The study used bilinear measures of acculturation to the host (American) and heritage (Russian) cultures. Using Structural Equation Modeling, the study confirmed the hypothesized relationships, such that the positive effects of American acculturation on psychological adjustment were mediated by occupational adjustment, and the effects of Russian acculturation on psychological adjustment were mediated by satisfaction with co-ethnic social support. Psychological adjustment was measured in two ways, as psychological well-being, using a measure of life satisfaction, and as symptoms of depression and anxiety, using the Hopkins symptom checklist (HSCL). Life satisfaction served as a mediator between adjustment in occupational and social domains and HSCL, suggesting that it may be an intervening variable through which environmental stress associated with immigration contributes to the development of symptoms of mental disorder.
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- 2014
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21. Unusual presentation of a granular cell astrocytoma.
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George AA, Fuller GN, Langford LA, Simon CD, Zingalis AA, and Mathis DA
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- Aged, Brain Neoplasms metabolism, ErbB Receptors metabolism, Glial Fibrillary Acidic Protein metabolism, Glioblastoma metabolism, Humans, Immunohistochemistry, Ki-67 Antigen metabolism, Magnetic Resonance Imaging, Male, Brain Neoplasms pathology, Glioblastoma pathology
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- 2013
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22. Spouses' cortisol associations and moderators: testing physiological synchrony and connectedness in everyday life.
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Papp LM, Pendry P, Simon CD, and Adam EK
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- Adult, Female, Humans, Loneliness, Male, Middle Aged, Stress, Psychological metabolism, Adaptation, Physiological, Hydrocortisone metabolism, Marriage, Saliva metabolism
- Abstract
In this study, associations were examined between cortisol levels of wives and husbands in 47 heterosexual married couples. Both partners' salivary cortisol levels were measured at the same moments seven times a day on 2 typical weekdays. After accounting for the effects of the diurnal rhythm of cortisol and relevant control variables, dyadic hierarchical linear modeling indicated significant positive linkages between partners' cortisol levels, consistent with the hypothesized within-couple physiological synchrony. Variables reflecting more (spousal presence) or less connectedness (loneliness, being alone) were also collected at the time of each cortisol sample. Results indicated that husbands' cortisol levels were higher at moments they reported feeling lonelier and lower at moments they were in the presence of their spouse. Wives' cortisol levels were higher at moments they were alone. In addition, wife-husband cortisol synchrony was stronger for husbands who spent relatively more time with their spouse across the study period-even after accounting for time spent with others in general. These findings suggest that marital partners evidence positive within-couple cortisol associations, and that connectedness (particularly physical closeness) may underpin spouses' physiological synchrony., (© FPI, Inc.)
- Published
- 2013
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23. Fresh frozen plasma.
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Simon CD, Perkins J, Barras P, Eastridge B, and Blackbourne LH
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- Humans, Military Personnel, Specimen Handling, Warfare, Blood Transfusion methods, Plasma, Wounds and Injuries therapy
- Published
- 2009
24. Psychiatric disorders among detained youths: a comparison of youths processed in juvenile court and adult criminal court.
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Washburn JJ, Teplin LA, Voss LS, Simon CD, Abram KM, and McClelland GM
- Subjects
- Adolescent, Anxiety Disorders diagnosis, Anxiety Disorders epidemiology, Anxiety Disorders rehabilitation, Attention Deficit and Disruptive Behavior Disorders diagnosis, Attention Deficit and Disruptive Behavior Disorders epidemiology, Attention Deficit and Disruptive Behavior Disorders rehabilitation, Child, Criminal Law statistics & numerical data, Cross-Sectional Studies, Diagnosis, Dual (Psychiatry), Ethnicity psychology, Ethnicity statistics & numerical data, Female, Health Services Accessibility legislation & jurisprudence, Health Services Accessibility statistics & numerical data, Humans, Juvenile Delinquency psychology, Juvenile Delinquency statistics & numerical data, Male, Mental Disorders diagnosis, Mental Disorders rehabilitation, Personality Assessment, Prisoners psychology, Referral and Consultation legislation & jurisprudence, Referral and Consultation statistics & numerical data, Substance-Related Disorders rehabilitation, Transfer Agreement legislation & jurisprudence, Transfer Agreement statistics & numerical data, United States, Violence legislation & jurisprudence, Violence psychology, Violence statistics & numerical data, Criminal Law legislation & jurisprudence, Juvenile Delinquency legislation & jurisprudence, Mental Disorders epidemiology, Prisoners legislation & jurisprudence, Substance-Related Disorders epidemiology
- Abstract
Objective: All 50 states and the District of Columbia have legal mechanisms to try juveniles as adults in criminal court. This study examined the prevalence of psychiatric disorders among youths transferred to adult criminal court and youths processed in the juvenile court., Methods: Participants were a stratified random sample of 1,829 youths, ten to 18 years of age, who were arrested and detained in Chicago. Data from version 2.3 of the Diagnostic Interview Schedule for Children are presented for 1,715 youths, 13 to 18 years of age, including 1,440 youths processed in juvenile court and 275 youths processed in adult criminal court., Results: Males, African Americans, Hispanics, and older youths had greater odds of being processed in adult criminal court than females, non-Hispanic whites, and younger youths, even after the analyses controlled for felony-level violent crime. Among youths processed in adult criminal court, 68% had at least one psychiatric disorder and 43% had two or more types of disorders. Prevalence rates and the number of comorbid types of disorders were not significantly different between youths processed in adult criminal court and those processed in juvenile court. Among youths processed in adult criminal court, those sentenced to prison had significantly greater odds than those receiving a less severe sentence of having a disruptive behavior disorder, a substance use disorder, or comorbid affective and anxiety disorders., Conclusions: Community and correctional systems must be prepared to provide psychiatric services to youths transferred to adult criminal court and especially to youths sentenced to prison. When developing and implementing services, psychiatric service providers must also consider the disproportionate representation of individuals from racial-ethnic minority groups in the transfer process.
- Published
- 2008
- Full Text
- View/download PDF
25. The ratio of fibrinogen to red cells transfused affects survival in casualties receiving massive transfusions at an army combat support hospital.
- Author
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Stinger HK, Spinella PC, Perkins JG, Grathwohl KW, Salinas J, Martini WZ, Hess JR, Dubick MA, Simon CD, Beekley AC, Wolf SE, Wade CE, and Holcomb JB
- Subjects
- Cohort Studies, Erythrocyte Count, Hospitals, Military, Humans, Injury Severity Score, ROC Curve, Retrospective Studies, Survival Rate, United States, Wounds and Injuries therapy, Erythrocyte Transfusion, Fibrinogen metabolism, Iraq War, 2003-2011, Wounds and Injuries blood, Wounds and Injuries mortality
- Abstract
Background: To treat the coagulopathy of trauma, some have suggested early and aggressive use of cryoprecipitate as a source of fibrinogen. Our objective was to determine whether increased ratios of fibrinogen to red blood cells (RBCs) decreased mortality in combat casualties requiring massive transfusion., Methods: We performed a retrospective chart review of 252 patients at a U.S. Army combat support hospital who received a massive transfusion (>or=10 units of RBCs in 24 hours). The typical amount of fibrinogen within each blood product was used to calculate the fibrinogen-to-RBC (F:R) ratio transfused for each patient. Two groups of patients who received either a low (<0.2 g fibrinogen/RBC Unit) or high (>or=0.2 g fibrinogen/RBC Unit) F:R ratio were identified. Mortality rates and the cause of death were compared between these groups, and logistic regression was used to determine if the F:R ratio was independently associated with survival., Results: Two-hundred and fifty-two patients who received a massive transfusion with a mean (SD) ISS of 21 (+/-10) and an overall mortality of 75 of 252 (30%) were included. The mean (SD) F:R ratios transfused for the low and high groups were 0.1 grams/Unit (+/-0.06), and 0.48 grams/Unit (+/-0.2), respectively (p < 0.001). Mortality was 27 of 52 (52%) and 48 of 200 (24%) in the low and high F:R ratio groups respectively (p < 0.001). Additional variables associated with survival were admission temperature, systolic blood pressure, hemoglobin, International Normalized Ratio (INR), base deficit, platelet concentration and Combined Injury Severity Score (ISS). Upon logistic regression, the F:R ratio was independently associated with mortality (odds ratio 0.37, 95% confidence interval 0.171-0.812, p = 0.013). The incidence of death from hemorrhage was higher in the low F:R group, 23/27 (85%), compared to the high F:R group, 21/48 (44%) (p < 0.001)., Conclusions: In patients with combat-related trauma requiring massive transfusion, the transfusion of an increased fibrinogen: RBC ratio was independently associated with improved survival to hospital discharge, primarily by decreasing death from hemorrhage. Prospective studies are needed to evaluate the best source of fibrinogen and the optimal empiric ratio of fibrinogen to RBCs in patients requiring massive transfusion.
- Published
- 2008
- Full Text
- View/download PDF
26. Double take: parallel processing by the cerebral hemispheres reduces attentional blink.
- Author
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Scalf PE, Banich MT, Kramer AF, Narechania K, and Simon CD
- Subjects
- Adolescent, Adult, Humans, Attention physiology, Blinking physiology, Brain physiology, Functional Laterality physiology, Nerve Net physiology
- Abstract
Recent data have shown that parallel processing by the cerebral hemispheres can expand the capacity of visual working memory for spatial locations (J. F. Delvenne, 2005) and attentional tracking (G. A. Alvarez & P. Cavanagh, 2005). Evidence that parallel processing by the cerebral hemispheres can improve item identification has remained elusive. The authors used a novel variant of the attentional blink paradigm to show that the attentional blink is reduced if targets are divided between the hemispheres rather than directed to a single hemisphere. Parallel processing by the cerebral hemispheres can thus expand the capacity of processes involved in item identification. The authors also show that prior engagement of the attentional system may compromise the processing of items directed to the right visual field. This pseudoextinction may explain the failures of previous attempts to demonstrate that parallel processing can improve item identification (J. F. Delvenne, 2005; S. J. Luck, S. A. Hillyard, G. R. Mangun, & M. S. Gazzaniga, 1989).
- Published
- 2007
- Full Text
- View/download PDF
27. Fatal cutaneous squamous cell carcinoma with extension through the maxillary sinus and orbit into the brain.
- Author
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Simon CD, Sims PJ, and Elston DM
- Subjects
- Aged, Fatal Outcome, Humans, Male, Neoplasm Invasiveness, Brain Neoplasms pathology, Carcinoma, Squamous Cell pathology, Maxillary Sinus Neoplasms pathology, Orbital Neoplasms pathology, Skin Neoplasms pathology
- Abstract
Cutaneous squamous cell carcinomas may cause death by metastasis or by local extension. We describe a deeply invasive cutaneous squamous cell carcinoma that caused death by direct extension into the brain.
- Published
- 1999
28. Renin-angiotensin system in hypophysectomized rats. I. Control of blood pressure.
- Author
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Simon CD, Honeyman TW, and Fray JC
- Subjects
- Animals, Body Weight, Captopril pharmacology, Growth Hormone pharmacology, Kidney enzymology, Male, Rats, Renin metabolism, Saralasin pharmacology, Time Factors, Blood Pressure drug effects, Hypophysectomy, Renin-Angiotensin System
- Abstract
The mechanisms whereby the pituitary gland maintains arterial pressure were investigated in rats. The arterial pressure in hypophysectomized rats was 30 mmHg below normal. Saralasin or captopril caused a further fall of 25 and 30 mmHg, respectively, suggesting that the renin-angiotensin system plays a role in blood pressure maintenance in hypophysectomized rats. Growth hormone administration to hypophysectomized rats increased the arterial pressure, but pretreatment with captopril prevented the effect. Plasma renin activity and basal renin secretion (in vitro) was normal in hypophysectomized rats despite a twofold greater renal renin content. Secretory responsiveness to isoproterenol and calcium omission was lower in hypophysectomized rats. It is concluded that the renin-angiotensin system plays a role in maintaining arterial blood pressure in hypophysectomized rats although the responsiveness of the system may be decreased.
- Published
- 1984
- Full Text
- View/download PDF
29. Long-term results following the repair of palatal clefts: a comparison of three different techniques.
- Author
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Seyfer AE and Simon CD
- Subjects
- Child, Preschool, Follow-Up Studies, Humans, Infant, Pharynx surgery, Prognosis, Surgical Flaps, Cleft Palate surgery
- Abstract
A series of 109 patients was divided according to type of palatal defect, technique of repair (pushback, von Langenbeck, or pushback with island flap), results of standardized multifactorial speech analyses, and effectiveness of primary and secondary operations. Sixty-five patients (60 percent) showed improved speech after the initial repair, with 49 of these rated as "good." Forty-five percent improved after the von Langenbeck operation, 57 percent improved after the pushback procedure, and 53 percent improved after the pushback/island flap repair. Persistent hypernasal speech was treated with superiorly based pharyngeal flaps in 18 patients with uniform success (p less than or equal to 0.001). The worst results (after all three techniques) followed the repair of bilateral complete clefts. This experience has tempered our expectations in dealing with cleft palate patients, especially those having bilateral defects.
- Published
- 1989
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