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seasonality of birth

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https://www.readbyqxmd.com/read/28088587/late-onset-neonatal-sepsis-in-arab-states-in-the-gulf-region-two-year-prospective-study
#1
Majeda S Hammoud, Abdullah Al-Taiar, Sameer Y Al-Abdi, Hussain Bozaid, Anwar Khan, Laila M AlMuhairi, Moghis Ur Rehman
OBJECTIVES: This study aimed to investigate the incidence of Late-Onset Sepsis (LOS) in neonatal intensive care units (NICUs) in Arab states in the gulf region and describe the main causative organisms and their antibiotic resistance. METHODS: Observational prospective cohort study was conducted over two-year period in five NICUs in Kuwait, Saudi Arabia and United Arab Emirates. LOS was defined as the growth of a single potentially pathogenic organism from blood or cerebrospinal fluid in infants >3days of age with clinical and laboratory findings consistent with infection...
January 11, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28088405/evaluation-of-factors-associated-with-immunoglobulin-g-fat-protein-and-lactose-concentrations-in-bovine-colostrum-and-colostrum-management-practices-in-grassland-based-dairy-systems-in-northern-ireland
#2
A Dunn, A Ashfield, B Earley, M Welsh, A Gordon, S J Morrison
The objectives of this study were to investigate colostrum feeding practices and colostrum quality on commercial grassland-based dairy farms, and to identify factors associated with colostrum quality that could help inform the development of colostrum management protocols. Over 1 yr, background information associated with dairy calvings and colostrum management practices were recorded on 21 commercial dairy farms. Colostrum samples (n = 1,239) were analyzed for fat, protein, lactose, and IgG concentration. A subset was analyzed for somatic cell count and total viable bacteria count...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28087514/the-influence-of-meteorological-factors-and-atmospheric-pollutants-on-the-risk-of-preterm-birth
#3
Lise Giorgis-Allemand, Marie Pedersen, Claire Bernard, Inmaculada Aguilera, Rob M J Beelen, Leda Chatzi, Marta Cirach, Asta Danileviciute, Audrius Dedele, Manon van Eijsden, Marisa Estarlich, Ana Fernández-Somoano, Mariana F Fernández, Francesco Forastiere, Ulrike Gehring, Regina Grazuleviciene, Olena Gruzieva, Barbara Heude, Gerard Hoek, Kees de Hoogh, Edith H van den Hooven, Siri E Håberg, Carmen Iñiguez, Vincent W V Jaddoe, Michal Korek, Aitana Lertxundi, Johanna Lepeule, Per Nafstad, Wenche Nystad, Evridiki Patelarou, Daniela Porta, Dirkje Postma, Ole Raaschou-Nielsen, Peter Rudnai, Valérie Siroux, Jordi Sunyer, Euripides Stephanou, Mette Sørensen, Kirsten Thorup Eriksen, Derek Tuffnell, Mihály J Varró, Tanja G M Vrijkotte, Alet Wijga, John Wright, Mark J Nieuwenhuijsen, Göran Pershagen, Bert Brunekreef, Manolis Kogevinas, Rémy Slama
Atmospheric pollutants and meteorological conditions are suspected to be causes of preterm birth. We aimed to characterize their possible association with the risk of preterm birth (defined as birth occurring before 37 completed gestational weeks). We pooled individual data from 13 birth cohorts in 11 European countries (71,493 births from the period 1994-2011, European Study of Cohorts for Air Pollution Effects (ESCAPE)). City-specific meteorological data from routine monitors were averaged over time windows spanning from 1 week to the whole pregnancy...
January 13, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28086893/seasonal-variation-in-geographical-access-to-maternal-health-services-in-regions-of-southern-mozambique
#4
Prestige Tatenda Makanga, Nadine Schuurman, Charfudin Sacoor, Helena Edith Boene, Faustino Vilanculo, Marianne Vidler, Laura Magee, Peter von Dadelszen, Esperança Sevene, Khátia Munguambe, Tabassum Firoz
BACKGROUND: Geographic proximity to health facilities is a known determinant of access to maternal care. Methods of quantifying geographical access to care have largely ignored the impact of precipitation and flooding. Further, travel has largely been imagined as unimodal where one transport mode is used for entire journeys to seek care. This study proposes a new approach for modeling potential spatio-temporal access by evaluating the impact of precipitation and floods on access to maternal health services using multiple transport modes, in southern Mozambique...
January 13, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28078085/comparing-effects-a-reanalysis-of-two-studies-on-season-of-birth-bias-in-anorexia-nervosa
#5
Eirin Winje, Anne-Kari Torgalsbøen, Cathrine Brunborg, Kristin Stedal
BACKGROUND: Outcomes from studies on season of birth bias in eating disorders have been inconsistent. This inconsistency has been explained by differences in methodologies resulting in different types of effect sizes. The aim of the current study was to facilitate comparison by using the same methodology on samples from two studies with differing conclusions. METHODS: The statistical analyses used in each study were applied to the samples from the other study and the resulting effect sizes, Cramêr's V and odds ratio (OR), were compared and discussed...
2017: Journal of Eating Disorders
https://www.readbyqxmd.com/read/28077924/temperature-during-pregnancy-influences-the-fetal-growth-and-birth-size
#6
Harunor Rashid, Miki Kagami, Farzana Ferdous, Enbo Ma, Toru Terao, Taiichi Hayashi, Yukiko Wagatsuma
BACKGROUND: Birth weight and length have seasonal fluctuations. However, it is uncertain which meteorological element has an effect on birth outcomes and which timing of pregnancy would explain such effect. Therefore, the purpose of this study was to examine temperature effects during pregnancy and which timing of pregnancy has effects on size at birth. METHODS: A large, randomized, controlled trial of food and micronutrient supplementation for pregnant women was conducted in Matlab, Bangladesh (MINIMat Study), where women were enrolled from November 2001 to October 2003...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28064359/season-of-birth-and-the-risk-of-type-2-diabetes-in-adulthood-a-prospective-cohort-study-of-0-5-million-chinese-adults
#7
Jiahui Si, Canqing Yu, Yu Guo, Zheng Bian, Xia Li, Ling Yang, Yiping Chen, Huarong Sun, Bo Yu, Junshi Chen, Zhengming Chen, Jun Lv, Liming Li
AIMS/HYPOTHESIS: Season of birth as a surrogate for potential environmental exposure during fetal development and early postnatal life has shown an inconsistent association with adult type 2 diabetes in white populations living in high-latitude regions. The present study aimed to examine the association between birth seasonality and risk of adult type 2 diabetes in Chinese individuals living across wide regions of low latitude and lower to middle latitude. METHODS: Participants from the China Kadoorie Biobank were enrolled during 2004-2008 and followed up until 31 December 2013...
January 7, 2017: Diabetologia
https://www.readbyqxmd.com/read/28063708/infants-indoor-and-outdoor-residential-exposure-to-benzene-and-respiratory-health-in-a-spanish-cohort
#8
Amparo Ferrero, Ana Esplugues, Marisa Estarlich, Sabrina Llop, Amparo Cases, Enrique Mantilla, Ferran Ballester, Carmen Iñiguez
Benzene exposure represents a potential risk for children's health. Apart from being a known carcinogen for humans (group 1 according to IARC), there is scientific evidence suggesting a relationship between benzene exposure and respiratory problems in children. But results are still inconclusive and inconsistent. This study aims to assess the determinants of exposure to indoor and outdoor residential benzene levels and its relationship with respiratory health in infants. Participants were 1-year-old infants (N = 352) from the INMA cohort from Valencia (Spain)...
January 4, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28058575/study-on-reproductive-performance-of-holstein-x-lai-sind-crossbred-dairy-heifers-and-cows-at-smallholdings-in-ho-chi-minh-city-vietnam
#9
Cuong Nguyen-Kien, Nguyen Van Khanh, Christian Hanzen
The reproductive performance of Holstein x Lai Sind crossbred dairy heifers and cows was evaluated at smallholdings in Ho Chi Minh City (HCMC). The data of 232 heifers and 244 cows (261 lactations) from 35 small dairy farms was collected over a 2-year period, from 2013 to 2014. The overall mean for age at first service (AFS), days between first and last service (DFLS), and age at conception (AC) of heifers was 479 (±80), 38 (±80), and 517 (±114) days, respectively. Average number of services per conception (NSC), conception rate (CR), and conception rate at first service (CRFS) was 1...
January 5, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28056406/the-impact-of-maternal-factors-on-the-association-between-temperature-and-preterm-delivery
#10
Rupa Basu, Hong Chen, De-Kun Li, Lyndsay A Avalos
BACKGROUND: Few studies have examined maternal modifiers of temperature and adverse birth outcomes because of lack of data. We assessed the relationship between apparent temperature, preterm delivery (PTD) and maternal demographics, medical and mental health conditions, and behaviors. METHODS: A time-stratified case-crossover analysis was conducted using 14,466 women who had a PTD (20 to less than 37 gestational weeks) from 1995 to 2009 using medical records from a large health maintenance organization in Northern California...
January 2, 2017: Environmental Research
https://www.readbyqxmd.com/read/28045998/nutrition-smoothing-can-proximity-to-towns-and-cities-protect-rural-children-against-seasonal-variation-in-agroclimatic-conditions-at-birth
#11
Amelia F Darrouzet-Nardi, William A Masters
A large literature links early-life environmental shocks to later outcomes. This paper uses seasonal variation across the Democratic Republic of the Congo to test for nutrition smoothing, defined here as attaining similar height, weight and mortality outcomes despite different agroclimatic conditions at birth. We find that gaps between siblings and neighbors born at different times of year are larger in more remote rural areas, farther from the equator where there are greater seasonal differences in rainfall and temperature...
2017: PloS One
https://www.readbyqxmd.com/read/28032035/seasonal-variation-in-adult-hip-disease-secondary-to-osteoarthritis-and-developmental-dysplasia-of-the-hip
#12
Tatsuya Sueyoshi, Merrill A Ritter, Kenneth E Davis, Randall T Loder
AIM: To determine if there was a seasonal variation in adults undergoing total hip arthroplasty for end stage hip disease due to osteoarthritis (OA) or sequelae of developmental dysplasia of the hip (DDH). METHODS: The total hip registry from the author's institution for the years 1969 to 2013 was reviewed. The month of birth, age, gender, and ethnicity was recorded. Differences between number of births observed and expected in the winter months (October through February) and non-winter mo (March through September) were analyzed with the χ(2) test...
December 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28029515/the-polyenviromic-risk-score-aggregating-environmental-risk-factors-predicts-conversion-to-psychosis-in-familial-high-risk-subjects
#13
Jaya L Padmanabhan, Jai L Shah, Neeraj Tandon, Matcheri S Keshavan
BACKGROUND: Young relatives of individuals with schizophrenia (i.e. youth at familial high-risk, FHR) are at increased risk of developing psychotic disorders, and show higher rates of psychiatric symptoms, cognitive and neurobiological abnormalities than non-relatives. It is not known whether overall exposure to environmental risk factors increases risk of conversion to psychosis in FHR subjects. METHODS: Subjects consisted of a pilot longitudinal sample of 83 young FHR subjects...
October 29, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/28028634/evaluation-of-body-weight-and-visual-scores-for-genetic-improvement-of-nelore-cattle
#14
F M Paterno, M E Buzanskas, W Koury Filho, R B Lôbo, S A Queiroz
The aims of our study were to estimate genetic parameters for body weight and visual scores and to evaluate their inclusion as selection criteria in the Nelore breeding program in Brazil. The traits studied were the body weight adjusted to 210 (W210) and to 450 (W450) days of age and visual scores for body structure, finishing precocity, and muscling evaluated at weaning (BSW, FPW, and MSW) and yearling (BSY, FPY, and MSY) ages. A total of 33,242, 26,259, 23,075, and 26,057 observations were considered to analyze W210, W450, and visual scores at weaning and yearling...
December 27, 2016: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28025694/low-vitamin-d-deficiency-in-irish-toddlers-despite-northerly-latitude-and-a-high-prevalence-of-inadequate-intakes
#15
Carol Ní Chaoimh, Elaine K McCarthy, Jonathan O'B Hourihane, Louise C Kenny, Alan D Irvine, Deirdre M Murray, Mairead E Kiely
PURPOSE: While reports of inadequate vitamin D intakes among young children are widespread, data on the prevalence of vitamin D deficiency are inconsistent. We aimed to quantify vitamin D intake and serum 25-hydroxyvitamin D [25(OH)D] concentrations in children aged 2 years in the prospective Cork BASELINE Birth Cohort Study. METHODS: Serum 25(OH)D was analysed using UPLC-MS/MS in 741 children living in Cork, Ireland (51°N). Two-day weighed food diaries were collected in 467 children, and 294 provided both a blood sample and a food diary...
December 26, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/28017882/prevalence-of-atopic-dermatitis-in-infants-by-domestic-water-hardness-and-season-of-birth
#16
Kristiane Aa Engebretsen, Peter Bager, Jan Wohlfahrt, Lone Skov, Claus Zachariae, Anne-Marie Nybo Andersen, Mads Melbye, Jacob P Thyssen
BACKGROUND: Atopic dermatitis (AD) appears to be more common in regions with hard domestic water and in children with a fall/winter birth. However, it is unknown whether a synergistic effect exists. OBJECTIVE: To evaluate the association between domestic water hardness and season of birth, respectively, with onset of AD within the first 18 months of life in a large Danish birth cohort. METHODS: 52,950 children from the Danish National Birth Cohort were included...
December 22, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28011117/association-between-single-nucleotide-polymorphisms-and-sexual-precocity-in-nellore-heifers
#17
Inaê Cristina Regatieri, Arione Augusti Boligon, Raphael Bermal Costa, Fábio Ricardo Pablos de Souza, Fernando Baldi, Luciana Takada, Guilherme Costa Venturini, Gregório Miguel Ferreira de Camargo, Gerardo Alves Fernandes, Humberto Tonhati, Henrique Nunes de Oliveira, Lucia Galvão de Albuquerque
The aim of this study was to determine the extent (r(2)) of linkage disequilibrium (LD) in the genome of Nellore cattle, and to examine associations between single nucleotide polymorphisms (SNP) and age at first calving (AFC) and early pregnancy (EP) using a panel of high-density SNPs and data from 1182 Nellore females. A total of 13 contemporary groups (CG) were used consisting of farm, season, and year of birth. For genome-wide association analysis, SNPs with a minor allele frequency (MAF)<0.05 and animals with a call rate<0...
December 15, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/28007555/regular-biennial-cycles-in-epidemics-caused-by-parametric-resonance
#18
Shiyang Chen, Bogdan Epureanu
The interaction between nonlinearity and seasonal forcing in childhood infectious diseases often leads to multiyear cycles with large amplitude. Regular biennial cycles in particular were observed in measles reports throughout the world. The objective of this paper is to understand the mechanism of such biennial cycles, especially the conditions under which the large amplitude biennial oscillation might appear. It is proposed that such biennial cycles are caused by parametric resonance, which might occur when varying the parameter at a frequency close to twice the natural frequency of the system...
December 20, 2016: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/27997361/association-of-neovascular-age-related-macular-degeneration-with-month-and-season-of-birth-in-italy
#19
Antonio Longo, Alessandra Casuccio, Luca Pani, Teresio Avitabile, Salvatore Cillino, Maurizio G Uva, Vincenza Bonfiglio, Andrea Russo, Guglielmo Parisi, Gilda Cennamo, Claudio Furino, Mariacristina Parravano, Entela Xoxi, Michele Reibaldi
In order to investigate the influence of season and month of birth on the risk of neovascular age-related macular degeneration (n-AMD) in Italy, we evaluated the month birth and sex of all patients, recorded in the anti-vascular endothelial growth factor (VEGF) monitoring registry of the Italian Medicines Agency, born between 1925-1944, who received intravitreal anti-VEGF injections for n-AMD between January 1, 2013 and July 29, 2015. The numbers of all births in Italy in the same years, extracted from the Italian National Institute of Statistics, were used to calculate the expected number of n-AMD cases...
December 19, 2016: Aging
https://www.readbyqxmd.com/read/27988883/surveillance-of-adverse-events-after-seasonal-influenza-vaccination-in-pregnant-women-and-their-infants-in-the-vaccine-adverse-event-reporting-system-july-2010-may-2016
#20
Pedro Moro, Jane Baumblatt, Paige Lewis, Janet Cragan, Naomi Tepper, Maria Cano
INTRODUCTION: Routine immunization of pregnant women with seasonal inactivated influenza vaccines (IIVs) is recommended in all trimesters of pregnancy. A review of the Vaccine Adverse Event Reporting System (VAERS) during 1990-2009 did not find any unexpected patterns of pregnancy complications or fetal outcomes after administration of IIV or live attenuated influenza vaccines (LAIVs). During the 2009-2010 pandemic influenza A (H1N1) vaccination campaign, a study noted that the number of VAERS reports from pregnant women who received the H1N1 2009 inactivated monovalent vaccine (n = 288) increased compared with 1990-2009 seasonal IIV pregnancy reports (n = 148)...
December 17, 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
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