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https://www.readbyqxmd.com/read/28812462/severe-intrauterine-amputations-in-one-dichorionic-twin-with-pentalogy-of-cantrell-further-evidence-and-consideration-for-mechanical-teratogenesis
#1
Víctor M Salinas-Torres, Estivaliz A De La O-Espinoza, Rafael A Salinas-Torres
Pentalogy of Cantrell (PC) is characterized by midline supraumbilical abdominal wall defect, lower sternum defect, anterior diaphragmatic and pericardial defect, and congenital cardiac anomalies. Several etiological influences have been postulated, however, most of the reported cases are sporadic. In addition, evidence for mechanical teratogenesis in PC is limited. Here, we describe in one dichorionic twin with complete PC, additional severe intrauterine amputations (mainly head and neck) not previously reported resultant from mechanical teratogenesis...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28812316/literacy-acquisition-influences-children-s-rapid-automatized-naming
#2
Robin L Peterson, Anne B Arnett, Bruce F Pennington, Brian Byrne, Stefan Samuelsson, Richard K Olson
Previous research has established that learning to read improves children's performance on reading-related phonological tasks, including phoneme awareness (PA) and nonword repetition. Few studies have investigated whether literacy acquisition also promotes children's rapid automatized naming (RAN). We tested the hypothesis that literacy acquisition should influence RAN in an international, longitudinal population sample of twins. Cross-lagged path models evaluated the relationships among literacy, PA, and RAN across four time points from pre-kindergarten through grade 4...
August 15, 2017: Developmental Science
https://www.readbyqxmd.com/read/28811973/nk-cell-dysfunction-in-chronic-lymphocytic-leukemia-is-associated-with-loss-of-the-mature-cells-expressing-inhibitory-killer-cell-ig-like-receptors
#3
Alexander W MacFarlane, Mowafaq Jillab, Mitchell R Smith, R Katherine Alpaugh, Marion E Cole, Samuel Litwin, Michael M Millenson, Tahseen Al-Saleem, Adam D Cohen, Kerry S Campbell
A prospective analysis of natural killer (NK) cell phenotype and function was performed on fresh peripheral blood samples from untreated patients with B-cell chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). Compared to healthy controls, CD56(dim) NK cells in CLL patients displayed reduced expression of the NKG2D activating receptor and increased CD27 expression, which indicates declines in mature cells. In addition, NK cells from CLL patients showed reduced degranulation responses toward transformed B cells alone or with rituximab and were more sensitive to activation-induced cell death...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28811816/unicornuate-uterus-with-a-rudimentary-horn-diagnosed-at-scheduled-third-cesarean-section
#4
Serkan Bodur, Ulas Fidan, Mehmet Ferdi Kinci, Kazim Emre Karasahin
A unicornuate uterus with a rudimentary horn is an anomaly caused by defective fusion of the Müllerian duct, estimated to occur in one in 76,000 pregnancies. Life threateningly heavy bleeding is a highly expected clinical consequence of such pregnancies. According to the known literature, only two living twins and few living singleton pregnancies have been reported up to now. Here we report on an incidentally diagnosed unicornuate uterus with a communicating rudimentary horn, found during a cesarean section of a gravida 3, parity 2 (G3 P2) patient...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811525/totipotency-segregates-between-the-sister-blastomeres-of-two-cell-stage-mouse-embryos
#5
E Casser, S Israel, A Witten, K Schulte, S Schlatt, V Nordhoff, M Boiani
Following fertilization in mammals, it is generally accepted that totipotent cells are exclusive to the zygote and to each of the two blastomeres originating from the first mitotic division. This model of totipotency was inferred from a minority of cases in which blastomeres produced monozygotic twins in mice. Was this due to experimental limitation or biological constraint? Here we removed experimental obstacles and achieved reliable quantification of the prevalence of dual totipotency among mouse two-cell stage blastomeres...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28809900/modulation-bandwidth-enhancement-for-coupled-twin-square-microcavity-lasers
#6
Zhi-Xiong Xiao, Yong-Zhen Huang, Yue-De Yang, Min Tang, Jin-Long Xiao
Modulation bandwidth enhancements are investigated for coupled twin-square microcavity lasers due to photon-photon resonance effect. For a coupled twin-square microcavity laser with the square side length of 20 μm, we demonstrate the increase of 3-dB modulation bandwidth from 9.6 GHz to 19.5 GHz, by adjusting the resonance mode wavelength interval between two square microcavities. The enhanced modulation bandwidth is explained by rate equation analysis, and numerical simulations are conducted for large signal modulation with improved eye-diagrams at 40 Gbit/s...
August 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28809501/microencapsulated-solid-lipid-nanoparticles-as-a-hybrid-platform-for-pulmonary-antibiotic-delivery
#7
Diana P Gaspar, Maria Manuela Gaspar, Carla V Eleutério, Ana Grenha, Mateo Blanco, Lídia M D Gonçalves, Pablo Taboada, António J Almeida, Carmen Remuñán-López
Solid lipid nanoparticles (SLN) containing rifabutin (RFB), with pulmonary administration purposes, were developed through a technique that avoids the use of organic solvents or sonication. To facilitate their pulmonary delivery, the RFB-loaded SLN were included in microspheres of appropriate size using suitable excipients (mannitol and trehalose) through a spray-drying technique. Confocal analysis microscopy showed that microspheres are spherical and that SLN are efficiently microencapsulated and homogeneously distributed throughout the microsphere matrices...
August 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28808816/a-genome-wide-association-study-of-cognitive-function-in-chinese-adult-twins
#8
Chunsheng Xu, Dongfeng Zhang, Yili Wu, Xiaocao Tian, Zengchang Pang, Shuxia Li, Qihua Tan
Multiple loci or genes have been identified using genome-wide association studies mainly in western countries but with inconsistent results. No similar studies have been conducted in the world's largest and rapidly aging Chinese population. The paper aimed to identify the specific genetic variants associated with cognitive function in middle and old-aged Chinese dizygotic twins (DZ). Cognitive function was measured on 139 pairs of DZ by Montreal Cognitive Assessment. The subjects were genotyped at 1048575 SNP positions...
August 14, 2017: Biogerontology
https://www.readbyqxmd.com/read/28808434/continuous-diffraction-of-molecules-and-disordered-molecular-crystals
#9
Henry N Chapman, Oleksandr M Yefanov, Kartik Ayyer, Thomas A White, Anton Barty, Andrew Morgan, Valerio Mariani, Dominik Oberthuer, Kanupriya Pande
The intensities of far-field diffraction patterns of orientationally aligned molecules obey Wilson statistics, whether those molecules are in isolation (giving rise to a continuous diffraction pattern) or arranged in a crystal (giving rise to Bragg peaks). Ensembles of molecules in several orientations, but uncorrelated in position, give rise to the incoherent sum of the diffraction from those objects, modifying the statistics in a similar way as crystal twinning modifies the distribution of Bragg intensities...
August 1, 2017: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/28808267/novel-twin-roll-cast-ti-al-clad-sheets-with-excellent-tensile-properties
#10
Dae Woong Kim, Dong Ho Lee, Jung-Su Kim, Seok Su Sohn, Hyoung Seop Kim, Sunghak Lee
Pure Ti or Ti alloys are recently spot-lighted in construction industries because they have excellent resistance to corrosions, chemicals, and climates as well as various coloring characteristics, but their wide applications are postponed by their expensiveness and poor formability. We present a new fabrication process of Ti/Al clad sheets by bonding a thin Ti sheet on to a 5052 Al alloy melt during vertical-twin-roll casting. This process has merits of reduced production costs as well as improved tensile properties...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807554/grassroots-technological-resistance-the-people-s-power-project-and-the-impossible-dream-of-wireless-transmission-of-energy
#11
Pete Schmidt
In 1972, the Minnesota United Power Association (UPA) teamed up with the Minnesota Cooperative Power Association (CPA) to initiate an electrification project designed to bring power from North Dakota to the Twin Cities area. A significant backlash and protest began once farmers across the state became aware of the plan and the potential impending land seizure. In the midst of these actions, one group sought to create an alternative to the power line transmission system by designing a system of wireless energy transmission based on the plans of Nikola Tesla...
August 11, 2017: Endeavour
https://www.readbyqxmd.com/read/28807205/facilitating-surgeon-understanding-of-complex-anatomy-using-a-three-dimensional-printed-model
#12
Barrett P Cromeens, William C Ray, Brad Hoehne, Fikir Abayneh, Brent Adler, Gail E Besner
BACKGROUND: 3-dimensional prints (3DP) anecdotally facilitate surgeon understanding of anatomy and decision-making. However, the actual benefit to surgeons or patients has not been quantified. This study investigates how surgeon understanding of complex anatomy is altered by a 3DP compared to computed tomography (CT) scan or CT + digital reconstruction (CT + DR). MATERIALS AND METHODS: Key anatomic features were segmented from a CT-abdomen/pelvis of pygopagus twins to build a DR and printed in color on a 3D printer...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28805427/on-the-relative-importance-of-individual-level-characteristics-and-dyadic-interaction-effects-in-negotiations-variance-partitioning-evidence-from-a-twins-study
#13
Hillary Anger Elfenbein, Noah Eisenkraft, Jared R Curhan, Lisabeth F DiLalla
Negotiations are inherently dyadic. Negotiators' individual-level characteristics may not only make them perform better or worse in general, but also may make them particularly well- or poorly-suited to negotiate with a particular counterpart. The present research estimates the extent to which performance in a distributive negotiation is affected by (a) the negotiators' individual-level characteristics and (b) dyadic interaction effects that are defined by the unique pairings between the negotiators and their counterparts...
August 14, 2017: Journal of Applied Psychology
https://www.readbyqxmd.com/read/28804916/lane-s-disease-erythema-palmare-hereditarium-a-report-of-five-cases-and-a-review-of-the-literature
#14
Carlotta Gurioli, Annalisa Patrizi, Martina Lambertini, Iria Neri
BACKGROUND: Erythema palmare hereditarium (EPH), also known as Lane's disease, is a rare, benign condition presenting as persistent erythema involving the palms. EPH can appear at birth or later in life and usually in at least two members of the same family, although a sporadic case has been reported. METHODS: We report five cases of EPH and offer a review of the current literature. The first and second cases are twin boys presenting with erythema mainly on the thenar and hypothenar eminences and on the phalanges that appeared 8 months after birth...
August 14, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28803597/somali-latino-and-hmong-parents-perceptions-and-approaches-about-raising-healthy-weight-children-a-community-based-participatory-research-study
#15
Chrisa Arcan, Kathleen A Culhane-Pera, Shannon Pergament, Maira Rosas-Lee, Mai Bao Xiong
OBJECTIVE: Immigrants in the USA are confronted with health disparities, including childhood obesity and obesity-related chronic diseases. We aimed to identify perceptions of childhood body weight, approaches to raising healthy children and desires for supportive programmes of Somali, Latino and Hmong (SLM) parents in the Twin Cities, Minnesota, USA. DESIGN: Using community-based participatory research, ten focus groups (FG) were conducted with sixty-seven parents (n 28 Somali, three FG; n 19 Latino, four FG; n 20 Hmong, three FG) of 3-12-year-old children in their native language...
August 14, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28803591/genetic-and-environmental-influences-on-correlations-between-hearing-and-cognitive-functions-in-middle-and-older-chinese-twins
#16
Chunsheng Xu, Dongfeng Zhang, Xiaocao Tian, Haiping Duan, Yili Wu, Zengchang Pang, Shuxia Li, Qihua Tan
The genetic and environmental impacts on correlations between hearing and cognitive functions have not been well studied. Cognitive function was evaluated by the Montreal Cognitive Assessment (MoCA). Hearing function was assessed by audiometric pure-tone hearing thresholds at different frequencies, including 0.5 kHz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, and 12.5 kHz, with the lower hearing thresholds indicating better hearing function. Cognitive and hearing functions were measured on 379 complete twin pairs (240 monozygotic and 139 dizygotic pairs) with a median age of 50 years (range: 40-80 years)...
August 14, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28803575/placental-expressions-of-cdkn1c-and-kcnq1ot1-in-monozygotic-twins-with-selective-intrauterine-growth-restriction
#17
Chenyu Gou, Xiangzhen Liu, Xiaomei Shi, Hanjing Chai, Zhi-Ming He, Xuan Huang, Qun Fang
CDKN1C and KCNQ1OT1 are imprinted genes that might be potential regulators of placental development. This study investigated placental expressions of CDKN1C and KCNQ1OT1 in monozygotic twins with and without selective intrauterine growth restriction (sIUGR). Seventeen sIUGR and fifteen normal monozygotic(MZ) twin pairs were examined. Placental mRNA expressions of CDKN1C and KCNQ1OT1 were detected by real-time fluorescent quantitative PCR. CDKN1C protein expression was detected by immunohistochemical assay and Western-blotting...
August 14, 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28803556/buffering-effects-of-safe-supportive-and-nurturing-relationships-among-women-with-childhood-histories-of-maltreatment
#18
S R Jaffee, R Takizawa, L Arseneault
BACKGROUND: Adults who were victims of childhood maltreatment tend to have poorer health compared with adults who did not experience abuse. However, many are in good health. We tested whether safe, supportive, and nurturing relationships buffer women with a history of childhood maltreatment from poor health outcomes in later life. METHODS: Participants included women from the Environmental Risk (E-Risk) Longitudinal Twin Study who were involved in an intimate relationship at some point by the time their twin children were 10 years old...
August 14, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28802943/pregnancy-outcomes-after-transvaginal-sacrospinous-hysteropexy
#19
Sabri Cavkaytar, Mahmut Kuntay Kokanalı, Umit Tasdemir, Melike Doganay, Orhan Aksakal
AIM: To evaluate the pregnancy outcomes in women who underwent transvaginal sacrospinous hysteropexy with the review of the literature STUDY DESIGN: 54 women who underwent transvaginal sacrospinous hysteropexy due to ≥grade 2 uterine prolapse during six-year period were identified from a computer based database. 8 of these who had pregnancy resulted in live birth subsequent to transvaginal sacrospinous hysteropexy were enrolled in this study. They were examined in case of pelvic organ prolapse recurrence and were questioned about their current self satisfaction status and PISQ-12 questionnaire...
August 4, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28801949/the-relationship-between-learning-mathematics-and-general-cognitive-ability-in-primary-school
#20
Richard Cowan, Jane Hurry, Emily Midouhas
Three relationships between learning mathematics and general cognitive ability have been hypothesized: The educational hypothesis that learning mathematics develops general cognitive skills, the psychometric hypothesis that differences in general cognitive ability cause differences in mathematical attainment, and the reciprocal influence hypothesis that developments in mathematical ability and general cognitive ability influence each other. These hypotheses are assessed with a sample of 948 children from the Twins Early Development Study who were assessed at 7, 9, and 10 years on mathematics, English, and general cognitive ability...
August 12, 2017: British Journal of Developmental Psychology
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