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https://www.readbyqxmd.com/read/29150387/the-effect-of-social-fathers-on-the-cognitive-skills-of-out-of-wedlock-children-in-the-u-s
#1
Kwok Ho Chan, Ka Wai Terence Fung
There are two competing views regarding the presence of social fathers on childrens' cognitive ability: (1) either the social father provides more financial resources which benefit the children or (2) the mother with new partners may shift the focus away from the children. Previous research focused on older children or adolescents and ignored the self-selection problem. We use data from the Fragile Families and Child Wellbeing Study (FFCWS), and a sample of younger children. Using propensity score matching method (nonparametric methods), we find that children with social fathers scored around three points less in a cognitive ability test than children living only with biological mothers (assuming that self-selection is based on observables)...
October 18, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/29150340/placental-transfer-and-levels-of-mercury-selenium-vitamin-e-and-docosahexaenoic-acid-in-maternal-and-umbilical-cord-blood
#2
Mineshi Sakamoto, Hing Man Chan, José L Domingo, Chihaya Koriyama, Katsuyuki Murata
Methylmercury (MeHg) is a neurotoxicant known to affect the developing fetal brain as a sensitive target organ. As most mercury (Hg) in blood is MeHg, total mercury (THg) levels in blood are used to estimate the body burden of MeHg. The nutrients selenium (Se), vitamin E, and docosahexaenoic acid (DHA) are protective against MeHg toxicity. We compared maternal and cord blood concentrations of biochemical substances, THg and Se, vitamin E, DHA, and other elements, fatty acids, and amino acids in 54 Japanese mother-newborn pairs to elucidate the fetal risk of MeHg toxicity...
November 14, 2017: Environment International
https://www.readbyqxmd.com/read/29150301/is-subchondral-bone-cyst-formation-in-non-load-bearing-region-of-osteoarthritic-knee-a-vascular-problem
#3
Pok Man Boris Chan, Chunyi Wen, Wai Ching Yang, Chunhoi Yan, KwongYuen Chiu
Subchondral bone cyst is common in the progressive knee osteoarthritis yet its underlying mechanism remains unclear. In addition to the existing theories such as synovial fluid influx and mechanical contusion, we identified the potential link between vascular pathology and osteoarthritic bone pathologies including cystic lesion formation, particularly in the non-load-bearing region. This new hypothesis for SBC formation in non-load-bearing region for knee, which cannot be explained by the existing theories, will provide us a new angle to understand the pathomechanism and pathophysiology of subchondral bone disturbance in osteoarthritis in addition to the classical biomechanical overloading theories...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150269/potential-role-of-the-virchow-robin-space-in-the-pathogenesis-of-bacterial-meningitis
#4
Patrick Chan, Denis J Meerdink, James A Uchizono
Meningitis is an infectious disease commonly arising from a bacterial etiology. The rapid progression of morbidity and mortality due to bacterial meningitis requires critical and imminent time-dependent clinical intervention. Although it is unambiguously clear that bacteria must infiltrate the cerebrospinal fluid, the sequence of events in the pathogenesis of bacterial meningitis has not been fully elucidated. Most reviews of the pathogenesis of bacterial meningitis do not specify the anatomical location of bacteria following BBB traversal...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29149904/concomitant-sequential-and-7-day-triple-therapy-in-first-line-treatment-of-helicobacter-pylori-infection-in-korea-study-protocol-for-a-randomized-controlled-trial
#5
Hyuk Lee, Beom Jin Kim, Sang Gyun Kim, Jin Il Kim, Il Ju Choi, Yong Chan Lee, Jae G Kim, Jae J Kim
BACKGROUND: Most international guidelines recommend triple-therapy regimens consisting of a proton pump inhibitor, clarithromycin, and amoxicillin/metronidazole for at least 7 days for the eradication of Helicobacter pylori. However, the efficacy of 7-day clarithromycin-based standard triple therapy for H. pylori infection is currently unacceptable in Korea. In this study, we will compare the efficacy and safety of 7-day standard triple therapy, 10-day sequential therapy, and 10-day concomitant therapy for the first-line treatment of H...
November 17, 2017: Trials
https://www.readbyqxmd.com/read/29149285/draft-genome-analysis-provides-insights-into-the-fiber-yield-crude-protein-biosynthesis-and-vegetative-growth-of-domesticated-ramie-boehmeria-nivea-l-gaud
#6
Chan Liu, Liangbin Zeng, Siyuan Zhu, Lingqing Wu, Yanzhou Wang, Shouwei Tang, Hongwu Wang, Xia Zheng, Jian Zhao, Xiaorong Chen, Qiuzhong Dai, Touming Liu
Plentiful bast fiber, a high crude protein content, and vigorous vegetative growth make ramie a popular fiber and forage crop. Here, we report the draft genome of ramie, along with a genomic comparison and evolutionary analysis. The draft genome contained a sequence of approximately 335.6 Mb with 42,463 predicted genes. A high-density genetic map with 4,338 single nucleotide polymorphisms (SNPs) was developed and used to anchor the genome sequence, thus, creating an integrated genetic and physical map containing a 58...
November 15, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/29148851/airway-geometry-airway-flow-and-particle-measurement-methods-implications-on-pulmonary-drug-delivery
#7
A Kourmatzis, S Cheng, H-K Chan
The effectiveness of drug delivery to the lungs is inextricably linked to the fundamental interactions that occur between particles and flow in the extrathoracic airway. Research in this field requires time resolved in-vivo and in-vitro measurements of three separate, yet intricately linked parameters: i) airway flow, ii) airway geometry, and iii) drug particle characteristics. A number of recent significant developments have been made in the experimental diagnostic tools used to characterise these parameters...
November 17, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/29148604/biomass-derived-n-doped-carbons-with-silica-supported-ultrasmall-zno-nanoparticles-robust-catalysts-for-the-green-synthesis-of-benzimidazoles
#8
Bo Chen, Chan Zhang, Libo Niu, Xiaozhen Shi, Huiling Zhang, Xingwang Lan, Guoyi Bai
Ultrasmall ZnO nanoparticles anchored on N-doped carbons with silica support (ZnO/SiO2-NC) were fabricated from chitosan and metal ions using a one-pot self-assembly strategy, and were successfully applied to the synthesis of 2-arylbenzimidazoles under mild conditions. These catalysts showed excellent stability and could be used six times without loss of conversion and selectivity. Using silica gel and biomass chitosan as a source of hydrophilic N-doped carbon facilitated the uniform dispersion of the ZnO nanoparticles in methanol and therefore their contact with reactants, contributing to a high catalytic performance...
November 17, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29148424/effect-of-the-metabolic-syndrome-on-organ-damage-and-mortality-in-patients-with-systemic-lupus-erythematosus-a-longitudinal-analysis
#9
Chi Chiu Mok, Sau Mei Tse, Kar Li Chan, Ling Yin Ho
OBJECTIVES: To study the effect of the metabolic syndrome (MetS) on organ damage and mortality in patients with SLE. METHODS: Consecutive patients who fulfilled ≥4 ACR criteria for SLE were assessed for the MetS in October 2010. The MetS was defined by the updated joint consensus criteria, using the Asian criteria for central obesity. Longitudinal data on organ damage and mortality were retrieved. The association between MetS and new damage and mortality was studied by logistic regression...
October 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29148280/anti-leucine-rich-glioma-inactivated-1-encephalitis-with-manic-symptoms-as-the-initial-manifestation
#10
Tsung-Han Tu, Yee-Lam E Chan, Ya-Mei Bai
No abstract text is available yet for this article.
November 1, 2017: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/29147708/advanced-sensing-imaging-and-therapy-nanoplatforms-based-on-nd-3-doped-nanoparticle-composites-exhibiting-upconversion-induced-by-808-nm-near-infrared-light
#11
REVIEW
Ming-Hsien Chan, Ru-Shi Liu
Malignant tumors are currently the leading cause of death worldwide, followed by cardiovascular and cerebrovascular diseases. Although various methods, such as blood examination, tissue biopsy, and radiography, for tumor detection, exist, these techniques still require further refinement. Researchers have recently explored the use of novel adjuvant methods, specifically luminescence imaging detection, for the detection of tumors. The light-triggered approach is less invasive and induces fewer side effects than traditional detection methods...
November 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/29147519/multi-functional-bis-alkynyl-gold-iii-n%C3%A2-c-complexes-with-distinct-mechanochromic-luminescence-and-electroluminescence-properties
#12
Ben Yiu-Wing Wong, Hok-Lai Wong, Yi-Chun Wong, Vonika Ka-Man Au, Mei-Yee Chan, Vivian Wing-Wah Yam
A new class of donor-acceptor type luminescent bis(alkynyl)gold(iii) N⁁C complexes has been synthesized and characterized. These gold(iii) complexes not only exhibit high photoluminescence quantum yields of up to 0.81, but also interesting mechanochromic luminescence behaviors that are reversible. Upon grinding, a dramatic luminescence color change from green to red can be observed in solid samples of the gold(iii) complexes, and the mechanochromic luminescence can be readily tuned via a judicious selection of substituents on the pyridine ring...
October 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29147455/community-residents-beliefs-about-neighborhood-corner-stores-in-2-latino-communities-implications-for-interventions-to-improve-the-food-environment
#13
Mienah Z Sharif, Stephanie L Albert, Alec M Chan-Golston, Gilberto Lopez, Alice A Kuo, Michael L Prelip, Alexander N Ortega, Deborah C Glik
We assessed community residents' perceptions of corner stores to better understand what facilitates and deters patronage at these food outlets. Data came from 978 household interviews in 2 Latino communities undergoing corner store interventions. Chi-square tests, an independent sample t test, and a multivariate logistic regression were conducted to assess the relationship between residents' perceptions about corner stores and their reported patronage at these food outlets. Residents reported that corner stores do not sell a variety of fruits and vegetables and are not places where one can get information about healthy eating...
2017: Journal of Hunger & Environmental Nutrition
https://www.readbyqxmd.com/read/29146401/neratinib-after-trastuzumab-based-adjuvant-therapy-in-her2-positive-breast-cancer-extenet-5-year-analysis-of-a-randomised-double-blind-placebo-controlled-phase-3-trial
#14
Miguel Martin, Frankie A Holmes, Bent Ejlertsen, Suzette Delaloge, Beverly Moy, Hiroji Iwata, Gunter von Minckwitz, Stephen K L Chia, Janine Mansi, Carlos H Barrios, Michael Gnant, Zorica Tomašević, Neelima Denduluri, Robert Šeparović, Erhan Gokmen, Anna Bashford, Manuel Ruiz Borrego, Sung-Bae Kim, Erik Hugger Jakobsen, Audrone Ciceniene, Kenichi Inoue, Friedrich Overkamp, Joan B Heijns, Anne C Armstrong, John S Link, Anil Abraham Joy, Richard Bryce, Alvin Wong, Susan Moran, Bin Yao, Feng Xu, Alan Auerbach, Marc Buyse, Arlene Chan
BACKGROUND: ExteNET showed that 1 year of neratinib, an irreversible pan-HER tyrosine kinase inhibitor, significantly improves 2-year invasive disease-free survival after trastuzumab-based adjuvant therapy in women with HER2-positive breast cancer. We report updated efficacy outcomes from a protocol-defined 5-year follow-up sensitivity analysis and long-term toxicity findings. METHODS: In this ongoing randomised, double-blind, placebo-controlled, phase 3 trial, eligible women aged 18 years or older (≥20 years in Japan) with stage 1-3c (modified to stage 2-3c in February, 2010) operable breast cancer, who had completed neoadjuvant and adjuvant chemotherapy plus trastuzumab with no evidence of disease recurrence or metastatic disease at study entry...
November 13, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/29145840/blockade-of-nicotine-sensitization-by-methanol-extracts-of-glycyrrhizae-radix-mediated-via-antagonism-of-accumbal-oxidative-stress
#15
Zheng Lin Zhao, Sang Chan Kim, Hong Feng Liu, Yi Yan Wu, Li Bo Li, Yu Hua Wang, Yu Jiao, Yu Fan, Chul Won Lee, Bong Hyeo Lee, Il Je Cho, Chae Ha Yang, Rong Jie Zhao
BACKGROUND: We previously reported that a methanol extract of Glycyrrhizae radix (MEGR) blocked methamphetamine-induced locomotor sensitization and conditioned place preference in rats. In the present study, the effects of MEGR on repeated nicotine-induced locomotor sensitization and enhanced extracellular dopamine (DA) release in the nucleus accumbens (Nacc) were evaluated. METHODS: Male Sprague-Dawley rats received repeated administrations of nicotine (0.4 mg/kg, subcutaneous) or saline twice a day for 7 d and were challenged with nicotine 4 d after the last daily dosing...
November 16, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29145620/head-and-neck-cancer-in-hong-kong
#16
Wai Tong Ng, Edwin C Y Wong, Victor H F Lee, Jimmy Y W Chan, Anne W M Lee
Head and neck cancer is a major cause of morbidity and mortality in Hong Kong. HNC is well-known for its heterogeneity in epidemiology, clinical behavior, clinic-pathological features and patient characteristics. Treatment strategies for this heterogeneous disease vary greatly in different parts of the world, depending on availability of resources, local expertise and experience. Extensive research in head and neck cancer, particularly nasopharyngeal carcinoma, has been conducted in Hong Kong in the past few decades...
November 14, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29145349/current-status-of-endoscopic-gallbladder-drainage
#17
Joey Ho Yi Chan, Anthony Yuen Bun Teoh
The gold standard for treatment of acute cholecystitis is laparoscopic cholecystectomy. However, cholecystectomy is often not suitable for surgically unfit patients who are too frail due to various co-morbidities. As such, several less invasive endoscopic treatment modalities have been developed to control sepsis, either as a definitive treatment or as a temporizing modality until the patient is stable enough to undergo cholecystectomy at a later stage. Recent developments in endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) with endoscopic ultrasound (EUS)-specific stents having lumen-apposing properties have demonstrated potential as a definitive treatment modality...
November 17, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/29144988/di-2-ethylhexyl-phthalate-enhances-melanoma-tumor-growth-via-differential-effect-on-m1-and-m2-polarized-macrophages-in-mouse-model
#18
Jae-Wook Lee, Sojin Park, Hae-Kyoung Han, Myung Chan Gye, Eun-Yi Moon
Phthalates are widely used as plasticizers that influence sexual and reproductive development. Here, we investigated whether di-(2-ethylhexyl) phthalate (DEHP) affects macrophage polarization that are associated with tumor initiation and progression. No changes were observed in LPS- or ConA-stimulated in vitro spleen B or T cell proliferation for 48 h, respectively. In contrast, macrophage functions were inhibited in response to DEHP for 12 h as judged by LPS-induced H2O2 and NO production and zymosan A-mediated phagocytosis...
November 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29144969/good-vibrations-resting-state-functional-connectivity-reflects-entrainment-of-vasomotion
#19
Allen W Chan, Timothy H Murphy
In this issue of Neuron,Mateo et al. (2017) suggest that hemodynamic measures of resting-state functional connectivity in cortex are reporting the consequences of entrainment of arteriole vasomotion by neuronal activity.
November 15, 2017: Neuron
https://www.readbyqxmd.com/read/29144896/atg9-antagonizes-tor-signaling-to-regulate-intestinal-cell-growth-and-epithelial-homeostasis-in-drosophila
#20
Jung-Kun Wen, Yi-Ting Wang, Chih-Chiang Chan, Cheng-Wen Hsieh, Hsiao-Man Liao, Chin-Chun Hung, Guang-Chao Chen
Autophagy is essential for maintaining cellular homeostasis and survival under various stress conditions. Autophagy-related gene 9 (Atg9) encodes a multipass transmembrane protein thought to act as a membrane carrier for forming autophagosomes. However, the molecular regulation and physiological importance of Atg9 in animal development remain largely unclear. Here, we generated Atg9 null mutant flies and found that loss of Atg9 led to shortened lifespan, locomotor defects, and increased susceptibility to stress...
November 16, 2017: ELife
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