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https://www.readbyqxmd.com/read/28634574/reducing-viability-bias-in-analysis-of-gut-microbiota-in-preterm-infants-at-risk-of-nec-and-sepsis
#1
Gregory R Young, Darren L Smith, Nicholas D Embleton, Janet E Berrington, Edward C Schwalbe, Stephen P Cummings, Christopher J van der Gast, Clare Lanyon
Necrotising enterocolitis (NEC) and sepsis are serious diseases of preterm infants that can result in feeding intolerance, the need for bowel resection, impaired physiological and neurological development, and high mortality rates. Neonatal healthcare improvements have allowed greater survival rates in preterm infants leading to increased numbers at risk of developing NEC and sepsis. Gut bacteria play a role in protection from or propensity to these conditions and have therefore, been studied extensively using targeted 16S rRNA gene sequencing methods...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28634548/decline-in-memory-visuospatial-ability-and-crystalized-cognitive-abilities-in-older-adults-normative-aging-or-terminal-decline
#2
R Bendayan, A M Piccinin, S M Hofer, D Cadar, B Johansson, G Muniz-Terrera
The aim of this study is to explore the pattern of change in multiple measures of cognitive abilities in a sample of oldest-old adults, comparing two different time metrics (chronological age and time to death) and therefore examining both underlying conceptual assumptions (age-related change and terminal decline). Moreover, the association with individual characteristics as sex, education, and dementia diagnosis was also examined. Measures of cognitive status (Mini-Mental State Examination and the Swedish Clock Test) and tests of crystallized (knowledge and synonyms), memory (verbal memory, nonverbal long-term memory, recognition and correspondence, and short-term memory), and visuospatial ability were included...
2017: Journal of Aging Research
https://www.readbyqxmd.com/read/28633683/plasminogen-activator-inhibitor-1-is-regulated-through-dietary-fat-intake-and-heritability-studies-in-twins
#3
Anna Janina Engstler, Turid Frahnow, Michael Kruse, Andreas Friedrich Hermann Pfeiffer, Ina Bergheim
In different pathophysiological conditions plasminogen activator inhibitor-1 (PAI-1) plasma concentrations are elevated. As dietary patterns are considered to influence PAI-1 concentration, we aimed to determine active PAI-1 plasma concentrations and mRNA expression in adipose tissue before and after consumption of a high-fat diet (HFD) and the impact of additive genetic effects herein in humans. For 6 weeks, 46 healthy, non-obese pairs of twins (aged 18-70) received a normal nutritionally balanced diet (ND) followed by an isocaloric HFD for 6 weeks...
June 21, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28633449/night-work-as-a-risk-factor-of-future-disability-pension-due-to-musculoskeletal-diagnoses-a-prospective-cohort-study-of-swedish-twins
#4
Sanna Kärkkäinen, Annina Ropponen, Jurgita Narusyte, Lisa Mather, Torbjörn Åkerstedt, Karri Silventoinen, Ellenor Mittendorfer-Rutz, Pia Svedberg
Background: This study investigated the associations between night work, sleep and disability pension (DP) due to musculoskeletal disorders (MSD), while controlling for several confounding factors including both genetic factors and shared family background. Methods: The study sample consisted of 27 165 Swedish twin individuals born in 1935-58 with comprehensive survey data on sociodemographic, health and lifestyle factors. Night work was assessed as years of working hours at night at least every now and then, and categorized into 'not at all, 1-10 years and over 10 years'...
June 19, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28633303/cognitive-trajectories-in-prediabetes-and-diabetes-a-population-based-cohort-study
#5
Anna Marseglia, Anna K Dahl Aslan, Laura Fratiglioni, Giola Santoni, Nancy L Pedersen, Weili Xu
Background: Diabetes has been linked to dementia risk; however, the cognitive trajectories in older adults with diabetes remain unclear. We aimed to investigate the effect of prediabetes and diabetes on cognitive trajectories among cognitively intact older adults in a long-term follow-up study. Methods: Within the Swedish Adoption/Twin Study of Aging, 793 cognitively intact older adults aged ≥50 were identified at baseline and followed for up to 23 years. Based on standardized scores from 11 cognitive tests, administered at baseline and up to seven follow-ups, four cognitive domains (verbal abilities, spatial/fluid, memory, perceptual speed) were identified by principal-component analysis...
June 13, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28631899/dual-molecular-diagnosis-contributes-to-atypical-prader-willi-phenotype-in-monozygotic-twins
#6
Fernanda S Jehee, Valdirene T de Oliveira, Juliana Gurgel-Giannetti, Rafaella X Pietra, Fernando V M Rubatino, Natália V Carobin, Gabrielle S Vianna, Mariana L de Freitas, Karla S Fernandes, Beatriz S V Ribeiro, Hennie T Brüggenwirth, Roza Ali-Amin, Janson J White, Zeynep C Akdemir, Shalini N Jhangiani, Richard A Gibbs, James R Lupski, Monica C Varela, Célia Koiffmann, Carla Rosenberg, Cláudia M B Carvalho
We describe monozygotic twin girls with genetic variation at two separate loci resulting in a blended phenotype of Prader-Willi syndrome and Pitt-Hopkins syndrome. These girls were diagnosed in early infancy with Prader-Willi syndrome, but developed an atypical phenotype, with apparent intellectual deficiency and lack of obesity. Array-comparative genomic hybridization confirmed a de novo paternal deletion of the 15q11.2q13 region and exome sequencing identified a second mutational event in both girls, which was a novel variant c...
June 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28630588/testicular-cancer-in-two-brothers-of-a-quadruplet-a-case-report-and-a-review-of-literature
#7
Agnė Ulytė, Albertas Ulys, Kęstutis Sužiedėlis, Aušvydas Patašius, Giedrė Smailytė
Introduction. Testicular cancer and a multiple birth are both rare events, and the risk of testicular cancer is increased in twins. In Lithuania, only five quadruplets have been recorded since the middle of the 20th century. In this report, we present two rare events in one family: testicular cancer in two brothers of a quadruplet (three brothers and a sister). Case description. Both patients were diagnosed at 21 years of age and died within two years from the diagnosis despite treatment. The third symptomless brother did not have testicular pathology...
2017: Acta medica Lituanica
https://www.readbyqxmd.com/read/28630324/trust-is-heritable-whereas-distrust-is-not
#8
Martin Reimann, Oliver Schilke, Karen S Cook
Why do people distrust others in social exchange? To what degree, if at all, is distrust subject to genetic influences, and thus possibly heritable, and to what degree is it nurtured by families and immediate peers who encourage young people to be vigilant and suspicious of others? Answering these questions could provide fundamental clues about the sources of individual differences in the disposition to distrust, including how they may differ from the sources of individual differences in the disposition to trust...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630290/childhood-social-class-and-cognitive-aging-in-the-swedish-adoption-twin-study-of-aging
#9
Malin Ericsson, Cecilia Lundholm, Stefan Fors, Anna K Dahl Aslan, Catalina Zavala, Chandra A Reynolds, Nancy L Pedersen
In this report we analyzed genetically informative data to investigate within-person change and between-person differences in late-life cognitive abilities as a function of childhood social class. We used data from nine testing occasions spanning 28 y in the Swedish Adoption/Twin Study of Aging and parental social class based on the Swedish socioeconomic index. Cognitive ability included a general factor and the four domains of verbal, fluid, memory, and perceptual speed. Latent growth curve models of the longitudinal data tested whether level and change in cognitive performance differed as a function of childhood social class...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28629273/the-association-between-maternal-race-and-adverse-outcomes-in-twin-pregnancies-with-similar-healthcare-access
#10
Marti D Soffer, Mariam Naqvi, Stephanie Melka, Aren Gottlieb, Julie Romero, Nathan S Fox
OBJECTIVE: To compare twin pregnancy outcomes between white and nonwhite women with similar access to healthcare. METHODS: Retrospective cohort study of all twin pregnancies delivered by a single maternal-fetal medicine practice from 2005-2016. All patients had private health insurance and equal access to physician care. Outcomes were compared between white and nonwhite women using logistic regression to adjust for differences at baseline. RESULTS: Of the 858 women included, 730 (85...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28625760/multifetal-pregnancy-reduction-of-triplets-to-twins-compared-with-non-reduced-triplets-a-meta-analysis
#11
REVIEW
Yaniv Zipori, Jigal Haas, Howard Berger, Eran Barzilay
The current systematic review and meta-analysis evaluate the perinatal outcomes in twin pregnancies following multifetal pregnancy reduction (MPR) compared with non-reduced triplet pregnancies. All studies comparing perinatal outcome of twin pregnancies following MPR to non-reduced triplet pregnancies were considered. MEDLINE, non-indexed MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials and Web of Science were searched for relevant published articles up to August 2016. The search yielded 653 publications of which 92 were assessed for eligibility...
May 31, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28624956/dicer1-mutations-in-twelve-chinese-patients-with-pleuropulmonary-blastoma
#12
Siyu Cai, Xisi Wang, Wen Zhao, Libing Fu, Xiaoli Ma, Xiaoxia Peng
Our aim is to examine the impact of DICER1 mutations on the pathogenesis of pleuropulmonary blastoma (PPB) by evaluating the mutation frequency and investigating the family history of Chinese patients with PPB. The family histories of 12 children with PPB recruited consecutively were surveyed. Blood samples from patients and their first-degree relatives were tested for DICER1 mutations. Whole-genome sequencing of blood samples and formalin-fixed and paraffin-embedded (FFPE) tumor tissue was performed in one family with twins...
June 14, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28623287/heritability-and-responses-to-high-fat-diet-of-plasma-lipidomics-in-a-twin-study
#13
Turid Frahnow, Martin A Osterhoff, Silke Hornemann, Michael Kruse, Michal A Surma, Christian Klose, Kai Simons, Andreas F H Pfeiffer
Lipidomics have a great potential as clinical tool for monitoring metabolic changes in health and disease. Nevertheless hardly anything is known about the heritability of lipids. Therefore, it is necessary to clarify how and how much we can affect these progresses in individuals. In our interventional twin study (46 healthy, non-obese twin pairs) we investigated the lipid profile in plasma samples after switching from a low fat diet to an isocaloric high fat diet (HFD) to characterize the metabolic adaptation...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28623277/in-vivo-quantification-of-placental-insufficiency-by-bold-mri-a-human-study
#14
Jie Luo, Esra Abaci Turk, Carolina Bibbo, Borjan Gagoski, Drucilla J Roberts, Mark Vangel, Clare M Tempany-Afdhal, Carol Barnewolt, Judy Estroff, Arvind Palanisamy, William H Barth, Chloe Zera, Norberto Malpica, Polina Golland, Elfar Adalsteinsson, Julian N Robinson, Patricia Ellen Grant
Fetal health is critically dependent on placental function, especially placental transport of oxygen from mother to fetus. When fetal growth is compromised, placental insufficiency must be distinguished from modest genetic growth potential. If placental insufficiency is present, the physician must trade off the risk of prolonged fetal exposure to placental insufficiency against the risks of preterm delivery. Current ultrasound methods to evaluate the placenta are indirect and insensitive. We propose to use Blood-Oxygenation-Level-Dependent (BOLD) MRI with maternal hyperoxia to quantitatively assess mismatch in placental function in seven monozygotic twin pairs naturally matched for genetic growth potential...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28623091/dna-repair-and-systemic-lupus-erythematosus
#15
REVIEW
Rithy Meas, Matthew J Burak, Joann B Sweasy
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with no known cure that affects at least five million people worldwide. Monozygotic twin concordance and familial aggregation studies strongly suggest that lupus results from genetic predisposition along with environmental exposures including UV light. The majority of the common risk alleles associated with genetic predisposition to SLE map to genes associated with the immune system. However, evidence is emerging that implicates a role for aberrant DNA repair in the development of lupus...
June 9, 2017: DNA Repair
https://www.readbyqxmd.com/read/28622784/first-trimester-inter-and-intrafetal-size-discrepancies-in-bichorionic-twins-conceived-by-in%C3%A2-vitro-fertilization-can-it-predict-pregnancy-outcome
#16
Ron Bardin, Galia Oron, Yael Levy, Onit Sapir, Israel Meizner, Benjamin Fisch, Arnon Wiznitzer, Eran Hadar
OBJECTIVE: To evaluate the association between first-trimester inter- and intrafetal size discrepancies and pregnancy outcome, among bichorionic-biamniotic twins conceived by IVF. DESIGN: A retrospective study design was used. SETTING: Tertiary university-affiliated medical center. PATIENT(S): All women with a viable first-trimester bichorionic-biamniotic twin gestation, who conceived after IVF in 2007-2015. INTERVENTION(S): None...
June 13, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28621033/dicephalic-parapagus-conjoined-twins-in-a-large-fruit-eating-bat-genus-artibeus-chiroptera-phyllostomidae
#17
M R Nogueira, A Ventura, C C P da Veiga, L R Monteiro, N L Pinheiro, A L Peracchi
Conjoined twinning is an embryological anomaly rarely reported in wild mammals and with only two previous records in Chiroptera. Here, we report a case of dicephalic parapagus conjoined twins in the Neotropical phyllostomid genus Artibeus. These twins are males and present separated heads and necks, but a conjoined trunk with an expanded upper thoracic region. They developed two complete forelimbs and two complete hindlimbs, all laterally to the trunk. There is a volume in the upper midback and between the heads that resembles a third rudimentary medial forelimb, but X-ray images only suggest the presence of medial skeletal elements of the pectoral girdle (clavicle and scapulae) in this region...
June 16, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28619249/metabolism-of-sex-steroids-is-influenced-by-acquired-adiposity-a-study-of-young-adult-male-monozygotic-twin-pairs
#18
Veera Vihma, Jussi Naukkarinen, Ursula Turpeinen, Esa Hämäläinen, Jaakko Kaprio, Aila Rissanen, Sini Heinonen, Antti Hakkarainen, Jesper Lundbom, Nina Lundbom, Tomi S Mikkola, Matti J Tikkanen, Kirsi H Pietiläinen
Obesity and ageing are associated with lower serum testosterone levels in men. How fat distribution or adipose tissue metabolism, independent of genetic factors and age, are related to sex steroid metabolism is less clear. We studied the associations between adiposity and serum sex hormone concentrations, and mRNA expression of genes regulating sex hormone metabolism in adipose tissue in young adult male monozygotic (MZ) twin pairs. The subjects [n=18 pairs; mean age, 32 years; individual body mass indexes (BMIs) 22-36kg/m(2)] included 9 male MZ twin pairs discordant for BMI [intra-pair difference (Δ) in BMI ≥3kg/m(2)]...
June 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28618747/first-trimester-ultrasonographic-parameters-in-prediction-of-the-course-and-outcome-of-monochorionic-twin-pregnancies
#19
Slavica Aksam, Snezana Plesinac, Jelena Dotlic, Jasmina Tadic, Svetlana Vrzic-Petronijevic, Milos Petronijevic, Dusica Kocijancic-Belovic, Snezana Buzadzic
BACKGROUND/AIM: The aim of the study was to evaluate the association and the potential predictive value of first trimester ultrasonographic parameters on the course and outcome of monochorionic diamniotic twin pregnancies. MATERIALS AND METHODS: A prospective cohort study was undertaken of 39 healthy women with consecutive monochorionic diamniotic twin pregnancies. During first-trimester screening, crown-rump length (CRL) and nuchal translucency (NT) were measured...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28618023/is-the-atopic-march-related-to-confounding-by-genetics-and-early-life-environment-a-systematic-review-of-sibship-and-twin-data
#20
REVIEW
Sabria J Khan, Shyamali C Dharmage, Melanie C Matheson, Lyle C Gurrin
A popular hypothesis known as the atopic march proposes a set of sequential allergy and respiratory disorders in early childhood contributes enormously to the burden of disease in developed countries. Although the concept of the atopic march has been refined and strengthened by many cross-sectional and longitudinal studies linking eczema as the initial manifestation with progression to hay fever and then asthma, there is yet no definitive proof that the atopic march is the primary causal factor in childhood allergic disease...
June 15, 2017: Allergy
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