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Perinatal epidemiology

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https://www.readbyqxmd.com/read/28642064/the-genetic-basis-of-deafness-in-populations-of-african-descent
#1
REVIEW
Jason R Rudman, Rosemary I Kabahuma, Sara E Bressler, Yong Feng, Susan H Blanton, Denise Yan, Xue-Zhong Liu
Hearing loss is the most common sensorineural disorder worldwide and is associated with more than 1000 mutations in more than 90 genes. While mutations in genes such as GJB2 (gap-junction protein β 2) and GJB6 (gap-junction protein β 6) are highly prevalent in Caucasian, Asian, and Middle Eastern populations, they are rare in both native African populations and those of African descent. The objective of this paper is to review the current knowledge regarding the epidemiology and genetics of hearing loss in African populations with a focus on native sub-Saharan African populations...
May 6, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28618728/epidemiology-of-under-five-mortality-in-%C3%A4-stanbul-changes-from-1988-to-2011
#2
Aysun Fahriye Buzcu, Aylin Yetim Şahin, Esra Karapinar, Özge Erol, Emine Gülbin Gökçay
BACKGROUND/AIM: Understanding the causes of under-five deaths is key to realizing sustainable developmental goals. The aim of this descriptive study was to investigate the causes of under-five mortality in İstanbul during 2011 and compare the findings to those of 1988 and 2000. MATERIALS AND METHODS: All burial records of İstanbul were evaluated, and cemetery records of 1494 children, who died at under five years of age and were buried in İstanbul Metropolitan Municipality Cemeteries between 1 January and 31 December 2011, were analyzed...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28599896/objectively-measured-short-sleep-duration-and-later-sleep-midpoint-in-pregnancy-are-associated-with-a-higher-risk-of-gestational-diabetes
#3
Francesca L Facco, William A Grobman, Kathryn J Reid, Corette B Parker, Shannon M Hunter, Robert M Silver, Robert C Basner, George R Saade, Grace W Pien, Shalini Manchanda, Judette M Louis, Chia-Ling Nhan-Chang, Judith H Chung, Deborah A Wing, Hyagriv N Simhan, David M Haas, Jay Iams, Samuel Parry, Phyllis C Zee
BACKGROUND: Experimental and epidemiologic data suggest that among non-pregnant adults, sleep duration may be an important risk factor for chronic disease. Although pregnant women commonly complain of poor sleep, few studies have objectively evaluated the quality of sleep in pregnancy or have explored the relationship between sleep disturbances and maternal and perinatal outcomes. OBJECTIVES: Our objective was to examine the relationship between objectively assessed sleep duration, timing and continuity (measured via wrist actigraphy) and maternal cardiovascular and metabolic morbidity specific to pregnancy...
June 6, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28591798/associations-among-body-size-across-the-life-course-adult-height-and-endometriosis
#4
L V Farland, S A Missmer, A Bijon, G Gusto, A Gelot, F Clavel-Chapelon, S Mesrine, M C Boutron-Ruault, M Kvaskoff
STUDY QUESTION: Are body size across the life course and adult height associated with endometriosis? SUMMARY ANSWER: Endometriosis is associated with lean body size during childhood, adolescence and adulthood; tall total adult height; and tall sitting height. WHAT IS KNOWN ALREADY: The literature suggests that both adult body size and height are associated with endometriosis risk, but few studies have investigated the role of body size across the life course...
June 7, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28531848/a-systematic-review-and-meta-regression-of-the-prevalence-and-incidence-of-perinatal-depression
#5
REVIEW
C A Woody, A J Ferrari, D J Siskind, H A Whiteford, M G Harris
BACKGROUND: Major Depressive Disorder (MDD) is a leading cause of the disease burden for women of childbearing age, but the burden of MDD attributable to perinatal depression is not yet known. There has been little effort to date to systematically review available literature and produce global estimates of prevalence and incidence of perinatal depression. Enhanced understanding will help to guide resource allocation for screening and treatment. METHODS: A systematic literature review using the databases PsycINFO and PubMed returned 140 usable prevalence estimates from 96 studies...
May 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28526520/preconception-care-among-low-risk-mothers-in-a-french-perinatal-network-frequency-of-utilization-and-factors-associated
#6
S Paradis, A Ego, J-L Bosson
OBJECTIVE: Determine the frequency of preconception care use in France and factors impacting preconception visit. MATERIALS AND METHODS: An epidemiological study was conducted from September 2015 to October 2015 in 5 maternity hospitals within the "Alpes-Isère" perinatal network, comprising of French-speaking women, with uncomplicated pregnancies, who delivered a healthy term baby (≥37 weeks of gestational age). Two groups were compared: patients with and without preconception care...
May 17, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28499926/epigenetic-studies-of-perinatal-determinants-of-later-obesity-link-important-but-previously-unrelated-genetic-and-epidemiological-findings
#7
https://www.readbyqxmd.com/read/28434210/changes-in-perinatal-hospital-deaths-occurring-outside-the-neonatal-intensive-care-unit-over-a-decade
#8
Amélie Dupont-Thibodeau, Keith Barrington, Catherine Taillefer, Annie Janvier
AIM: Perinatal deaths occurring outside the neonatal intensive care unit (NICU) are rarely recorded in outcome studies, despite having a direct impact on perinatal statistics. Our aim was to investigate the timing and modes of perinatal deaths that occurred outside the NICU and changes over time. METHOD: We reviewed all perinatal deaths from 22 weeks of gestation onwards, without NICU admissions, during two periods in a Canadian tertiary mother and baby hospital and categorised deaths according to nine specific categories...
April 23, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28430521/perinatal-light-imprinting-of-circadian-clocks-and-systems-pliccs-a-signature-of-photoperiod-around-birth-on-circadian-system-stability-and-association-with-cancer
#9
Philip Lewis, Thomas C Erren
Recent findings from animal models suggest that plasticity of human circadian clocks and systems may be differentially affected by different paradigms of perinatal photoperiod exposure to the detriment of health in later life, including cancer development. Focusing on the example of cancer, we carry out a series of systematic literature reviews concerning perinatal light imprinting of circadian clocks and systems (PLICCS) in animal models, and concerning the risk of cancer development with the primary determinants of the perinatal photoperiod, namely season of birth or latitude of birth...
April 21, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28427805/confounding-causality-and-confusion-the-role-of-intermediate-variables-in-interpreting-observational-studies-in-obstetrics
#10
Cande V Ananth, Enrique F Schisterman
Prospective and retrospective cohorts and case-control studies are some of the most important study designs in epidemiology because, under certain assumptions, they can mimic a randomized trial when done well. These assumptions include, but are not limited to, properly accounting for 2 important sources of bias: confounding and selection bias. While not adjusting the causal association for an intermediate variable will yield an unbiased estimate of the exposure-outcome's total causal effect, it is often that obstetricians will want to adjust for an intermediate variable to assess if the intermediate is the underlying driver of the association...
April 17, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28417440/developmental-neurotoxicity-of-traffic-related-air-pollution-focus-on-autism
#11
REVIEW
Lucio G Costa, Yu-Chi Chang, Toby B Cole
PURPOSE OF REVIEW: Epidemiological and animal studies suggest that air pollution may negatively affect the central nervous system (CNS) and contribute to CNS diseases. Traffic-related air pollution is a major contributor to global air pollution, and diesel exhaust (DE) is its most important component. RECENT FINDINGS: Several studies suggest that young individuals may be particularly susceptible to air pollution-induced neurotoxicity and that perinatal exposure may cause or contribute to developmental disabilities and behavioral abnormalities...
April 17, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28400946/the-state-of-asthma-epidemiology-an-overview-of-systematic-reviews-and-their-quality
#12
Jon Genuneit, Annina M Seibold, Christian J Apfelbacher, George N Konstantinou, Jennifer J Koplin, Stefania La Grutta, Kirsty Logan, Carsten Flohr, Michael R Perkin
BACKGROUND: Recently, we have published an overview of systematic reviews in allergy epidemiology and identified asthma as the most commonly reviewed allergic disease. Building on this work, we aimed to investigate the quality of systematic reviews in asthma using the AMSTAR checklist and to provide a reference for future, more in-depth assessment of the extent of previous knowledge. METHODS: We included all 307 systematic reviews indexed with asthma, including occupational asthma, and/or wheeze from our previous search in PubMed and EMBASE up to December 2014 for systematic reviews on epidemiological research on allergic diseases...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28380160/high-risk-pregnancies-and-factors-associated-with-neonatal-death
#13
Marcela de Oliveira Demitto, Angela Andréia França Gravena, Cátia Millene Dell'Agnolo, Marcos Benatti Antunes, Sandra Marisa Pelloso
OBJECTIVE: To identify the factors associated with intra-hospital neonatal mortality based on the individual characteristics of at-risk pregnant mothers, delivery and newborns. METHOD: This was a cross-sectional epidemiological study of live newborns delivered by women attended at the high-risk outpatient unit of a philanthropic hospital in Maringá, Paraná, Brazil between September 2012 and September 2013. RESULTS: Six hundred and eighty-eight women participated in the study...
April 3, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28375541/unravelling-the-paediatric-and-perinatal-zika-virus-epidemic-through-population-based-research
#14
Cdc Christie, C Giaquinto
Zika virus epidemic now involves 72 countries, worldwide. Transmission is multimodal through mosquito bites and blood and body fluids. Zika virus causes Guillain Barre Syndrome syndrome and pregnancy complications including perinatal microcephaly. Diagnosis is complicated by subclinical infection in 80%, co-circulation with dengue and chikungunya fevers with similar presentations and cross-reactivity in serological tests. There is no cure, or preventive vaccine. Large population-based studies will help to elucidate ZIKV epidemiology, vertical transmission, risks to the fetus of maternal ZIKV infection and natural history of congenital and non-congenital ZIKV infection as provided by the activities in the "ZIKAction" research consortium in Latin America, Europe and the Caribbean, which was recently funded by the European Commission...
September 19, 2016: West Indian Medical Journal
https://www.readbyqxmd.com/read/28373965/perinatal-light-imprinting-of-circadian-clocks-and-systems-pliccs-the-pliccs-and-cancer-hypothesis
#15
Philip Lewis, Thomas C Erren
Circadian disruption is associated with sleep, mood, and metabolic disorders, and-according to the International Agency for Research on Cancer-even with cancer. Mechanistically, the source of disease may be circadian system instability which likely arises during development. In animal experiments, both low perinatal light:dark ratios and chronic perinatal photoperiod phase shifting yield enduring, detrimental effects on neuroendocrine physiology via circadian system instability. Certainly, accumulating disturbances to neuroendocrine physiology and detrimental downstream effects could predispose to internal cancers...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28350802/impact-of-lopinavir-ritonavir-exposure-in-hiv-1-infected-children-and-adolescents-in-madrid-spain-during-2000-2014
#16
Patricia Rojas Sánchez, Luis Prieto, Santiago Jiménez De Ory, Elisa Fernández Cooke, Maria Luisa Navarro, José Tomas Ramos, África Holguín
BACKGROUND: The most-used protease-inhibitor in children is Lopinavir-ritonavir (LPV/r), which provides durable suppression of viral load and increases CD4+T-counts. This study describes the virological outcome of the HIV-1-infected paediatric population exposed to LPV/r during 15 years in Spain. METHODOLOGY: Patients from the Madrid Cohort of HIV-1-infected-children and adolescents exposed to LPV/r as different line therapy during 2000-2014 were selected. The baseline epidemiological-clinical features, viral suppression, changes in CD4+T-CD8+T cell counts and drug susceptibility were recorded before and during LPV/r exposure...
2017: PloS One
https://www.readbyqxmd.com/read/28349583/a-general-framework-for-the-regression-analysis-of-pooled-biomarker-assessments
#17
Yan Liu, Christopher McMahan, Colin Gallagher
As a cost-efficient data collection mechanism, the process of assaying pooled biospecimens is becoming increasingly common in epidemiological research; for example, pooling has been proposed for the purpose of evaluating the diagnostic efficacy of biological markers (biomarkers). To this end, several authors have proposed techniques that allow for the analysis of continuous pooled biomarker assessments. Regretfully, most of these techniques proceed under restrictive assumptions, are unable to account for the effects of measurement error, and fail to control for confounding variables...
March 28, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28346920/microbial-composition-of-the-initial-colonization-of-newborns
#18
Samuli Rautava
Early-life interaction with indigenous intestinal microbes is a prerequisite for healthy immune and metabolic maturation. Human infants acquire their gut microbiota predominantly from the mother. A considerable inoculum of microbes is received by the neonate during vaginal delivery. Recent observations suggest that human gut colonization may be initiated prenatally by microbes in amniotic fluid, but the significance of this phenomenon remains unknown. After birth, neonatal gut colonization is guided by human milk factors, which selectively promote the growth of specific microbes, as well as by live microbes present in human milk...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28344954/no-fault-compensation-in-perinatal-medicine-in-japan-from-results-for-8-years
#19
REVIEW
Mitsutoshi Iwashita
No fault compensation in perinatal medicine has been established to provide aid to patients in the event of disability due to a medical accident during delivery and to strive to resolve disputes quickly that contributes to reduce medical malpractice suit in the field of perinatal medicine. Furthermore, this system is aimed to establish a mechanism that achieves higher quality of obstetric care by analyzing the causes of accidents. This system is operated by Japan Council for Quality Health Care and 99.9% of childbirth facilities in Japan registered with this compensation system...
March 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28340001/early-life-origin-of-intestinal-inflammatory-disorders
#20
Delphine Ley, Jean-Luc Desseyn, Mona Mischke, Jan Knol, Dominique Turck, Frédéric Gottrand
A growing body of evidence supports the concept of perinatal programming through which the perinatal environment affects the development of the fetus and infant, thereby modifying the risk profile for disease later in life. Increasing attention is focusing on the role of the early environment in the development of chronic intestinal disorders. Epidemiological studies have highlighted the link between perinatal factors, such as breastfeeding, cesarean delivery, and antibiotic use, and an increased risk for inflammatory bowel disease and/or celiac disease...
March 1, 2017: Nutrition Reviews
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