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https://www.readbyqxmd.com/read/28193307/heritability-and-gwas-studies-for-monocyte-lymphocyte-ratio
#1
Bochao D Lin, Gonneke Willemsen, Iryna O Fedko, Rick Jansen, Brenda Penninx, E de Geus, C Kluft, JoukeJan Hottenga, Dorret I Boomsma
The monocyte-lymphocyte ratio (MLR) is a useful biomarker for disease development, but little is known about the extent to which genetic and environmental factors influence MLR variation. Here, we study the genetic architecture of MLR and determine the influence of demographic and lifestyle factors on MLR in data from a Dutch non-patient twin-family population. Data were obtained in 9,501 individuals from the Netherlands Twin Register. We used regression analyses to determine the effects of age, sex, smoking, and body mass index (BMI) on MLR and its subcomponents...
February 14, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28191586/attention-deficit-hyperactivity-disorder-symptoms-and-low-educational-achievement-evidence-supporting-a-causal-hypothesis
#2
Eveline L de Zeeuw, Catharina E M van Beijsterveldt, Erik A Ehli, Eco J C de Geus, Dorret I Boomsma
Attention Deficit Hyperactivity Disorder (ADHD) and educational achievement are negatively associated in children. Here we test the hypothesis that there is a direct causal effect of ADHD on educational achievement. The causal effect is tested in a genetically sensitive design to exclude the possibility of confounding by a third factor (e.g. genetic pleiotropy) and by comparing educational achievement and secondary school career in children with ADHD who take or do not take methylphenidate. Data on ADHD symptoms, educational achievement and methylphenidate usage were available in a primary school sample of ~10,000 12-year-old twins from the Netherlands Twin Register...
February 13, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/28176485/preterm-birth-prevention-in-twin-pregnancies-with-progesterone-pessary-or-cerclage-a-systematic-review-and-meta-analysis
#3
REVIEW
A Jarde, O Lutsiv, C K Park, J Barrett, J Beyene, S Saito, J M Dodd, P S Shah, J L Cook, A B Biringer, L Giglia, Z Han, K Staub, W Mundle, C Vera, L Sabatino, S K Liyanage, S D McDonald
BACKGROUND: About half of twin pregnancies deliver preterm, and it is unclear whether any intervention reduces this risk. OBJECTIVES: To assess the evidence for the effectiveness of progesterone, cerclage, and pessary in twin pregnancies. SEARCH STRATEGY: We searched Medline, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials, and ISI Web of Science, without language restrictions, up to 25 January 2016. SELECTION CRITERIA: Randomised controlled trials of progesterone, cerclage, or pessary for preventing preterm birth in women with twin pregnancies, without symptoms of threatened preterm labour...
February 8, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28170117/prevention-of-preterm-birth-with-pessary-in-twins-poppt-a-randomized-controlled-trial
#4
Vincenzo Berghella, Lorraine Dugoff, Jack Ludmir
OBJECTIVES: To evaluate if cervical pessary placement prevents PTB in twin gestations with a short midtrimester transvaginal ultrasound (TVU) cervical length (CL). METHODS: Multicenter randomized controlled trial of asymptomatic women with twin gestations with a TVU CL ≤30 mm at 18(0) -27(6) weeks. TVU CL screening was performed at the time of the anatomy scan at 18(0) -23(6) , and at subsequent scheduled ultrasounds prior to 28 weeks. Women with a TVU CL ≤30 mm at 18(0) -27(6) weeks were randomized to receive the Bioteque cup cervical pessary or no pessary...
February 7, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28166593/impact-of-rare-bleeding-disorders-during-pregnancy-on-maternal-and-fetal-outcomes-review-of-29-pregnancies-at-a-single-center
#5
Gokcen Orgul, Fatih Aktoz, M Sinan Beksac
Objective This study aims to give information about the relationship between different types of factor deficiencies and maternal/obstetric outcomes. Methods We retrospectively reviewed the medical records of eight women with factor deficiency disorders. The demographic and clinical features of the patients after their last pregnancies were registered retrospectively. Results There were 29 pregnancies among the 8 patients. The spontaneous abortion rate was relatively high in two patients with factor XIII deficiency (80% and 57...
February 6, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28162936/obstetric-and-neo-natal-outcomes-of-icsi-cycles-using-pentoxifylline-to-identify-viable-spermatozoa-in-patients-with-immotile-spermatozoa
#6
Purificación Navas, Alessio Paffoni, Giulia Intra, Antonio González-Utor, Ana Clavero, Maria Carmen Gonzalvo, Rocío Díaz, Rocío Peña, Liliana Restelli, Edgardo Somigliana, Enrico Papaleo, Jose A Castilla, Paola Viganò
Pentoxifylline (PF) represents an effective tool in stimulating motility and identifying viable spermatozoa in intracytoplasmic sperm injection (ICSI) patients presenting exclusively with immotile spermatozoa. However, its use is not universally accepted for its possible detrimental effects on oocytes, embryos or newborns. To evaluate whether PF use may affect obstetrical/neo-natal outcomes, 102 patients achieving a clinical pregnancy after a PF-ICSI in four IVF units in Spain and Italy were followed up after delivery...
January 24, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28150444/the-influence-of-chorionicity-and-gestational-age-at-single-fetal-loss-on-the-risk-of-preterm-birth-in-twin-pregnancies-analysis-of-the-stork-multiple-pregnancy-cohort
#7
Francesco D'Antonio, Basky Thilaganathan, Tiran Dias, Asma Khalil
BACKGROUND: Single intrauterine death (sIUD) in twin pregnancies is associated with a significant risk of co-twin demise and preterm birth (PTB), especially in monochorionic (MC) twins. However, it is yet to be established whether the gestational age at loss may influence the pregnancy outcome. The aim of this study was to explore the risk of PTB according to the gestational age at the diagnosis of sIUD. METHODS: A cohort study of all twin pregnancies from a large regional network of 9 hospitals over a ten-year period...
February 2, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28139489/reverse-twin-block-for-interceptive-management-of-developing-class-iii-malocclusion
#8
Meenu Mittal, Harpreet Singh, Ashok Kumar, Poonam Sharma
Early correction of developing class III malocclusions remains a complex challenge. Treatment approaches for these young patients have been directed at growth modification. Encouraging outcomes have been reported with the use of Class III functional appliances including reverse twin block (RTB) appliance. The present paper tries to provide an insight into RTB appliance used for successful interceptive management of developing class III malocclusion in two children. RTBs were fabricated with bite registered in the position of maximum possible retrusion of mandible with interincisal clearance of 2 mm and vertical clearance of 5 mm in the buccal segments...
January 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
https://www.readbyqxmd.com/read/28135188/births-final-data-for-2015
#9
Joyce A Martin, Brady E Hamilton, Michelle J K Osterman, Anne K Driscoll, T J Mathews
Objectives-This report presents 2015 data on U.S. births according to a wide variety of characteristics. Data are presented for maternal age, live-birth order, race and Hispanic origin, marital status, attendant at birth, method of delivery, period of gestation, birthweight, and plurality. Selected data by mother's state of residence and birth rates by age and race of father also are shown. Trends in fertility patterns and maternal and infant characteristics are described and interpreted. Methods-Descriptive tabulations of data reported on the birth certificates of the 3...
January 2017: National Vital Statistics Reports
https://www.readbyqxmd.com/read/28117063/the-familial-co-aggregation-of-attention-deficit-hyperactivity-disorder-and-intellectual-disability-a-register-based-family%C3%A2-study
#10
Stephen V Faraone, Laura Ghirardi, Ralf Kuja-Halkola, Paul Lichtenstein, Henrik Larsson
OBJECTIVE: Although many studies document an association between attention-deficit/hyperactivity disorder (ADHD) and intellectual disability (ID), little is known about the etiology of this comorbidity and how it should be addressed in clinical settings. We sought to clarify this issue. METHOD: All individuals born in Sweden between 1987 and 2006 (n = 2,049,587) were identified using the Medical Birth Register (MBR). From this we selected 7 cohorts of relatives: 1,899,654 parent-offspring pairs, 4,180 monozygotic twin pairs, 12,655 dizygotic twin pairs, 914,848 full sibling pairs, 136,962 maternal half-sibling pairs, 134,502 paternal half-sibling pairs, and 2,790,164 full cousin pairs...
February 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28114748/incorporation-of-the-time-aspect-into-the-liability-threshold-model-for-case-control-family-data
#11
Luise Cederkvist, Klaus K Holst, Klaus K Andersen, David V Glidden, Kirsten Frederiksen, Susanne K Kjaer, Thomas H Scheike
Familial aggregation and the role of genetic and environmental factors can be investigated through family studies analysed using the liability-threshold model. The liability-threshold model ignores the timing of events including the age of disease onset and right censoring, which can lead to estimates that are difficult to interpret and are potentially biased. We incorporate the time aspect into the liability-threshold model for case-control-family data following the same approach that has been applied in the twin setting...
January 23, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28105964/bullying-and-victimization-the-effect-of-close-companionship
#12
Sabine A M Veldkamp, Elsje van Bergen, Eveline L de Zeeuw, Catharina E M van Beijsterveldt, Dorret I Boomsma, Meike Bartels
Peer bullying and victimization are a widespread phenomenon among school-age children and can have detrimental effects on the development of children. To examine whether having a close companion during childhood increases or decreases risk of victimization and bullying, this study compared twins to singleton children. A large group of twins (n = 9,909) were included who were compared to their related non-twin siblings (n = 1,534) aged 7-12 from the Netherlands Twin Register, thus creating optimal matching between twins and non-twins...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28069474/heart-failure-in-late-pregnancy-and-postpartum-incidence-and-long-term-mortality-in-sweden-1997-2010
#13
Anders Barasa, Annika Rosengren, Tatiana Zverkova Sandström, Lars Ladfors, Maria Schaufelberger
AIMS: Heart failure (HF) in late pregnancy and postpartum (HFPP) of which peripartum cardiomyopathy (PPCM) comprises the larger part, is still a rare occurrence in Sweden. Population-based data are scarce. Our aim was to characterise HFPP and determine the incidence and mortality in a Swedish cohort. METHODS AND RESULTS: Through merging data from the National Inpatient, Cause of Death, and Medical Birth Registers, we identified ICD-10 codes for HF and cardiomyopathy, within 3 months before delivery up to 6 months postpartum...
January 6, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28067007/vaginal-progesterone-decreases-preterm-birth-and-neonatal-morbidity-and-mortality-in-women-with-a-twin-gestation-and-a-short-cervix-an-updated-meta-analysis-of-individual-patient-data
#14
REVIEW
Roberto Romero, Agustin Conde-Agudelo, Waleed El-Refaie, Line Rode, Maria L Brizot, Elcin Cetingoz, Vicente Serra, Eduardo Da Fonseca, Mohamed S Abdelhafez, Ann Tabor, Alfredo Perales, Sonia S Hassan, Kypros H Nicolaides
OBJECTIVE: To assess the efficacy of vaginal progesterone for the prevention of preterm birth and neonatal morbidity and mortality in asymptomatic women with a twin gestation and a sonographic short cervix (cervical length ≤25 mm) in the midtrimester. METHODS: Updated systematic review and meta-analysis of individual patient data from randomized controlled trials comparing vaginal progesterone with placebo/no treatment in women with a twin gestation and a midtrimester sonographic cervical length ≤25 mm...
January 9, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28061767/the-effect-of-induction-method-in-twin-pregnancies-a-secondary-analysis-for-the-twin-birth-study
#15
Elad Mei-Dan, Elizabeth V Asztalos, Andrew R Willan, Jon F R Barrett
BACKGROUND: This secondary analysis for the Twin Birth Study, an international, multicenter trial, aimed to compare the cesarean section rates and safety between methods of induction of labor in twin pregnancies. METHODS: Women with twin pregnancies where the first twin was in a cephalic presentation and who presented for labor induction, were non-randomly assigned to receive prostaglandin or amniotomy and/or oxytocin. Main outcome measures were the rates of unplanned cesarean section and neonatal and maternal mortality or serious morbidity...
January 6, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28007049/comparable-risk-of-childhood-asthma-after-vaginal-delivery-and-emergency-caesarean-section
#16
Nis Brix, Lonny Stokholm, Fjola Jonsdottir, Kim Kristensen, Niels Jørgen Secher
INTRODUCTION: Caesarean section is thought to be a risk factor for childhood asthma, but this association may be caused by confounding from, for instance, familial factors. To address this problem, we used twin pairs to assess the risk of childhood asthma after emergency caesarean section. METHODS: The study was a register-based nation-wide matched cohort study using twin pairs to minimise residual confounding. Included were twin pairs in which the first twin was delivered vaginally and the second by emergency caesarean section during the study period from January 1997 through December 2012...
January 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/27981669/alcohol-use-disorder-and-divorce-evidence-for-a-genetic-correlation-in-a-population-based-swedish-sample
#17
Jessica E Salvatore, Sara Larsson Lönn, Jan Sundquist, Paul Lichtenstein, Kristina Sundquist, Kenneth S Kendler
AIMS: We tested the association between alcohol use disorder (AUD) and divorce; estimated the genetic and environmental influences on divorce; estimated how much genetic and environmental influences accounted for covariance between AUD and divorce; and estimated latent genetic and environmental correlations between AUD and divorce. We tested sex differences in these effects. DESIGN: We identified twin and sibling pairs with AUD and divorce information in Swedish national registers...
December 16, 2016: Addiction
https://www.readbyqxmd.com/read/27981394/heritability-of-working-in-a-creative-profession
#18
Mark Patrick Roeling, Gonneke Willemsen, Dorret I Boomsma
Creativity is the tendency to generate or recognize ideas, alternatives, or possibilities. Following a study on the genetic contribution to working in a creative profession, based on polygenic score analysis, we report the total heritability of this trait in a large sample of adult twins and their siblings registered with the Netherlands Twin Register. Data from 6755 twins and 1817 siblings were analyzed using genetic structural equation modeling. Working in a creative profession is relatively rare in our sample (2...
December 15, 2016: Behavior Genetics
https://www.readbyqxmd.com/read/27974054/heritability-of-tic-disorders-a-twin-family-study
#19
N R Zilhão, M C Olthof, D J A Smit, D C Cath, L Ligthart, C A Mathews, K Delucchi, D I Boomsma, C V Dolan
BACKGROUND: Genetic-epidemiological studies that estimate the contributions of genetic factors to variation in tic symptoms are scarce. We estimated the extent to which genetic and environmental influences contribute to tics, employing various phenotypic definitions ranging between mild and severe symptomatology, in a large population-based adult twin-family sample. METHOD: In an extended twin-family design, we analysed lifetime tic data reported by adult mono- and dizygotic twins (n = 8323) and their family members (n = 7164; parents and siblings) from 7311 families in the Netherlands Twin Register...
December 15, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27939851/age-specific-prevalence-of-hoarding-and-obsessive-compulsive-disorder-a-population-based-study
#20
Danielle C Cath, Krystal Nizar, Dorret Boomsma, Carol A Mathews
OBJECTIVE: Little is known about the age-specific prevalence of hoarding and obsessive compulsive symptoms (OCS), particularly in older age groups. The objectives of this study were to estimate the age-specific prevalence, severity, and relationships between hoarding and OCS in males and females using a large population-based sample. METHODS: We assessed the age-specific prevalence rates of hoarding disorder (HD) and OC disorder (OCD) in males and females (at various age ranges between 15 and 97 years) from the Netherlands Twins Register (N = 15,194)...
November 10, 2016: American Journal of Geriatric Psychiatry
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