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https://www.readbyqxmd.com/read/28346833/arthroscopic-hip-surgery-in-the-elite-athlete-comparison-of-female-and-male-competitive-athletes
#1
Kotaro R Shibata, Shuichi Matsuda, Marc R Safran
BACKGROUND: Few studies have published the results of hip arthroscopic surgery in elite athletes and none studying a significant number of elite female athletes. PURPOSE: (1) To compare sex-based differences in the ability to return to prior competitive sports activity after arthroscopic hip surgery. (2) To compare sex-based differences in the type of sports activity, diagnosis, and treatment in athletes requiring hip arthroscopic surgery. STUDY DESIGN: Cohort study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28343037/concentration-and-sources-of-atmospheric-nitrous-acid-hono-at-an-urban-site-in-western-china
#2
Ru-Jin Huang, Lu Yang, Junji Cao, Qiyuan Wang, Xuexi Tie, Kin-Fai Ho, Zhenxing Shen, Renjian Zhang, Guohui Li, Chongshu Zhu, Ningning Zhang, Wenting Dai, Jiamao Zhou, Suixin Liu, Yang Chen, Jun Chen, Colin D O'Dowd
Highly time-resolved measurements of nitrous acid (HONO) were carried out with a highly sensitive long path absorption photometer (LOPAP) at an urban site of Xi'an in Western China from 24 July to 6 August 2015 to investigate the atmospheric variations, sources, and formation pathways of HONO. The concentrations of HONO vary from 0.02 to 4.3ppbv with an average of 1.12ppbv for the entire measurement period. The variation trends of HONO and NO2 are very similar and positively correlated which, together with the similar diurnal profiles of HONO/NO2 ratio and HONO, suggest the importance of heterogeneous conversion of HONO from NO2...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28342138/does-removal-of-subchondral-cortical-bone-provide-sufficient-resection-depth-for-treatment-of-cam-femoroacetabular-impingement
#3
Penny R Atkins, Stephen K Aoki, Ross T Whitaker, Jeffrey A Weiss, Christopher L Peters, Andrew E Anderson
BACKGROUND: Residual impingement resulting from insufficient resection of bone during the index femoroplasty is the most-common reason for revision surgery in patients with cam-type femoroacetabular impingement (FAI). Development of surgical resection guidelines therefore could reduce the number of patients with persistent pain and reduced ROM after femoroplasty. QUESTIONS/PURPOSES: We asked whether removal of subchondral cortical bone in the region of the lesion in patients with cam FAI could restore femoral anatomy to that of screened control subjects...
March 24, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28341886/industrial-robustness-linked-to-the-gluconolactonase-from-zymomonas-mobilis
#4
Alfonsus Alvin, Junhyun Kim, Gwi-Taek Jeong, Yiu Fai Tsang, Eilhann E Kwon, Brett A Neilan, Young Jae Jeon
The physiological characteristics and the potential gluconolactone production of the gluconolactonase-deficient strain, Zymomonas mobilis ZM4 gnlΔ, were investigated via growth inhibitory assay and biotransformation of glucose and fructose into gluconolactone and sorbitol, respectively. The results of ethanol fermentation studies performed in the presence of high concentration of glucose (>200 g l(-1)) under fermentative or aerobic conditions indicated that a significant reduction of volumetric ethanol productivity from the strain of ZM4 gnlΔ was noticeable due to the reduced rates of specific growth, sugar uptake, and biomass yield as compared with those of the parental strain ZM4...
March 24, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28335320/cellular-interactions-and-formation-of-an-epithelial-nanocoating-like-barrier-with-mesoporous-silica-nanoparticles
#5
Xuan Li, Ka Yan Pang, Tsz Wing Ng, Ping Chung Leung, Cheng Fei Zhang, Ken Cham-Fai Leung, Lijian Jin
Oral mucosa as the front-line barrier in the mouth is constantly exposed to a complex microenvironment with multitudinous microbes. In this study, the interactions of mesoporous silica nanoparticles (MSNs) with primary human gingival epithelial cells were analyzed for up to 72 h, and their diffusion capacity in the reconstructed human gingival epithelia (RHGE) and porcine ear skin models was further assessed at 24 h. It was found that the synthesized fluorescent mesoporous silica nanoparticles (RITC-NPs) with low cytotoxicity could be uptaken, degraded, and/or excreted by the human gingival epithelial cells...
October 27, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28335189/synergistic-antibacterial-effects-of-nanoparticles-encapsulated-with-scutellaria-baicalensis-and-pure-chlorhexidine-on-oral-bacterial-biofilms
#6
Ken Cham-Fai Leung, Chaminda Jayampath Seneviratne, Xuan Li, Ping Chung Leung, Clara Bik San Lau, Chi-Hin Wong, Ka Yan Pang, Chun Wai Wong, Elaine Wat, Lijian Jin
Scutellariabaicalensis (SB) is a traditional Chinese medicine for treating infectious and inflammatory diseases. Our recent study shows potent antibacterial effects of nanoparticle-encapsulated chlorhexidine (Nano-CHX). Herein, we explored the synergistic effects of the nanoparticle-encapsulated SB (Nano-SB) and Nano-CHX on oral bacterial biofilms. Loading efficiency of Nano-SB was determined by thermogravimetric analysis, and its releasing profile was assessed by high-performance liquid chromatographyusing baicalin (a flavonoid compound of SB) as the marker...
April 7, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28331615/nuclear-irf-1-expression-as-a-mechanism-to-assess-capability-to-express-pd-l1-and-response-to-pd-1-therapy-in-metastatic-melanoma
#7
James W Smithy, Lauren M Moore, Vasiliki Pelekanou, Jamaal Rehman, Patricia Gaule, Pok Fai Wong, Veronique M Neumeister, Mario Sznol, Harriet M Kluger, David L Rimm
BACKGROUND: Predictive biomarkers for antibodies against programmed death 1 (PD-1) remain a major unmet need in metastatic melanoma. Specifically, response is seen in tumors that do not express programmed death ligand 1 (PD-L1), highlighting the need for a more sensitive biomarker. We hypothesize that capacity to express PD-L1, as assessed by an assay for a PD-L1 transcription factor, interferon regulatory factor 1 (IRF-1), may better distinguish patients likely to benefit from anti-PD-1 immunotherapy...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28330896/cell-specific-variation-in-e-selectin-ligand-expression-among-human-peripheral-blood-mononuclear-cells-implications-for-immunosurveillance-and-pathobiology
#8
Mariana Silva, Ronald Kam Fai Fung, Conor Brian Donnelly, Paula Alexandra Videira, Robert Sackstein
Both host defense and immunopathology are shaped by the ordered recruitment of circulating leukocytes to affected sites, a process initiated by binding of blood-borne cells to E-selectin displayed at target endothelial beds. Accordingly, knowledge of the expression and function of leukocyte E-selectin ligands is key to understanding the tempo and specificity of immunoreactivity. In this study, we performed E-selectin adherence assays under hemodynamic flow conditions coupled with flow cytometry and Western blot analysis to elucidate the function and structural biology of glycoprotein E-selectin ligands expressed on human PBMCs...
March 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28329173/mitral-valve-repair-for-secondary-mitral-regurgitation-in-non-ischaemic-dilated-cardiomyopathy-is-associated-with-left-ventricular-reverse-remodelling-and-increase-of-forward-flow
#9
Vasileios Kamperidis, Suzanne E van Wijngaarden, Philippe J van Rosendael, William Kok Fai Kong, Madelien V Regeer, Frank van der Kley, Georgios Sianos, Nina Ajmone Marsan, Jeroen J Bax, Victoria Delgado
Aims: It remains unclear whether surgical or transcatheter mitral valve repair for secondary mitral regurgitation (MR) in patients with non-ischaemic cardiomyopathy reverse the underlying left ventricular (LV) pathophysiology. We hypothesized that mitral valve repair improves LV systolic function and forward flow and induces LV reverse remodelling in this group of patients. Methods and results: Seventy-six patients (65 ± 14 years old, 43% male) with non-ischaemic cardiomyopathy and moderate to severe chronic secondary MR treated successfully with transcatheter or surgical mitral valve repair were evaluated...
February 23, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28323926/psychological-distress-is-more-prevalent-in-fertile-age-and-premenopausal-women-with-pcos-symptoms-15-yr-follow-up
#10
Salla Karjula, Laure Morin-Papunen, Juha Auvinen, Aimo Ruokonen, Katri Puukka, Stephen Franks, Marjo-Riitta Järvelin, Juha S Tapanainen, Jari Jokelainen, Jouko Miettunen, Terhi T Piltonen
Context: Polycystic ovary syndrome (PCOS) is associated with increased psychological distress; obesity and hyperandrogenism being suggested as key promoters. Objectives: To investigate the prevalence of anxiety/depression and their coexistence in women with PCOS/PCOS symptoms at ages 31 and 46. The roles of obesity, hyperandrogenism and awareness of PCOS on psychological distress were also assessed. Design: Population based follow-up. Setting: Northern Finland Birth Cohort 1966 with 15-year follow-up...
February 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323620/discovery-of-novel-determinants-of-endothelial-lineage-using-chimeric-heterokaryons
#11
Wing Tak Wong, Gianfranco Matrone, XiaoYu Tian, Simion Alin Tomoiaga, Kin Fai Au, Shu Meng, Sayumi Yamazoe, Daniel Sieveking, Kaifu Chen, David M Burns, James K Chen, Helen M Blau, John P Cooke
We wish to identify determinants of endothelial lineage. Murine embryonic stem cells (mESC) were fused with human endothelial cells in stable, non-dividing, heterokaryons. Using RNA-seq it is possible to discriminate between human and mouse transcripts in these chimeric heterokaryons. We observed a temporal pattern of gene expression in the ESCs of the heterokaryons that recapitulated ontogeny, with early mesodermal factors being expressed before mature endothelial genes. A set of transcriptional factors not known to be involved in endothelial development was upregulated, one of which was POU class 3 homeobox 2 (Pou3f2)...
March 21, 2017: ELife
https://www.readbyqxmd.com/read/28323519/improvement-of-low-sexual-desire-due-to-antiandrogenic-combined-oral-contraceptives-after-switching-to-an-oral-contraceptive-containing-17%C3%AE-estradiol
#12
Salvatore Caruso, Stefano Cianci, Maria Cariola, Valentina Fava, Salvatore Di Pasqua, Antonio Cianci
OBJECTIVES: To investigate the effects of a combined oral contraceptive (COC) containing 17β-estradiol (E2) 1.5 mg and nomegestrol acetate 2.5 mg (NOMAC/E2) on the sexual health of women affected by low sexual desire due to COCs containing ethinylestradiol. MATERIALS AND METHODS: Eighty-three women (age range 19-32) participated in the study. Sex hormone-binding globulin (SHBG), total testosterone (TT), and free androgen index (FAI) were measured. The Female Sexual Function Index (FSFI) and the Female Sexual Distress Scale (FSDS) questionnaires were used to assess sexual function and distress, respectively...
March 21, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28323031/an-anti-prostate-cancer-benzofuran-conjugated-iridium-iii-complex-as-a-dual-inhibitor-of-stat3-and-nf-%C3%AE%C2%BAb
#13
Tian-Shu Kang, Wanhe Wang, Hai-Jing Zhong, Zhen-Zhen Dong, Qi Huang, Simon Wing Fai Mok, Chung-Hang Leung, Vincent Kam Wai Wong, Dik-Lung Ma
Four benzofuran-conjugated iridium(III) or rhodium (III)-based metal complexes are synthesized to screen as an inhibitor of STAT3 activity in prostate cancer cells. All complexes show the high stability and solubility in the biological system. In this study, an iridium(III) complex engages STAT3 and NF-κB to inhibit their translocation and transcriptional activities. Moreover, complex 1 shows more potential antiproliferative activity against DU145 cells and suppresses tumor growth in a prostate cancer xenograft mouse without observable adverse effects...
March 16, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28322697/molecular-identification-of-spirometra-erinaceieuropaei-tapeworm-in-cases-of-human-sparganosis-hong-kong
#14
Tommy H C Tang, Samson S Y Wong, Christopher K C Lai, Rosana W S Poon, Helen S Y Chan, Tak Chiu Wu, Yuk-Fai Cheung, Tak-Lap Poon, Yi-Po Tsang, Wai-Lun Tang, Alan K L Wu
Human sparganosis is a foodborne zoonosis endemic in Asia. We report a series of 9 histologically confirmed human sparganosis cases in Hong Kong, China. All parasites were retrospectively identified as Spirometra erinaceieuropaei. Skin and soft tissue swelling was the most common symptom, followed by central nervous system lesions.
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28321595/enhanced-roles-of-biochar-and-organic-fertilizer-in-microalgae-for-soil-carbon-sink
#15
Shiping Zhang, Liang Wang, Wei Wei, Jiajun Hu, Shouhua Mei, Quanyu Zhao, Yiu Fai Tsang
Improved soil carbon sink capability is important for the mitigation of carbon dioxide emissions and the enhancement of soil productivity. Biochar and organic fertilizer (OF) showed a significant improving effect on microalgae in soil carbon sink capacity, and the ultimate soil total organic carbons with microalgae-OF, microalgae-biochar, microalgae-OF-biochar were about 16, 67 and 58% higher than that with microalgae alone, respectively, indicating that carbon fixation efficiency of microalgae applied in soil was improved with biochar and OF whilst the soil carbon capacity was promoted, the mechanism of which is illustrated through simulative experiments...
March 20, 2017: Biodegradation
https://www.readbyqxmd.com/read/28319368/comparative-analysis-reveals-furoyl-in-vivo-selective-hydroxyl-acylation-analyzed-by-primer-extension-reagents-form-stable-ribosyl-ester-adducts
#16
Dalen Chan, Chao Feng, Yuran Zhen, Ryan A Flynn, Robert C Spitale
RNA molecules depend on structural elements that are critical for cellular function. Chemical methods for probing RNA structure have emerged as a necessary component of characterizing RNA function. As such, understanding the limitations and idiosyncrasies of these methods is essential for their utility. Selective hydroxyl acylation has emerged as a common method for analyzing RNA structure. Ester products as a result of 2'-hydroxyl acylation can then be identified through reverse transcription or mutational enzyme profiling...
March 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28318316/bilateral-proprioceptive-evaluation-in-individuals-with-unilateral-chronic-ankle-instability
#17
Andreia S P Sousa, João Leite, Bianca Costa, Rubim Santos
CONTEXT: Despite extensive research on chronic ankle instability, the findings regarding proprioception have been conflicting and focused only on the injured limb. Also, the different components of proprioception have been evaluated in isolation. OBJECTIVE: To evaluate bilateral ankle proprioception in individuals with unilateral ankle instability. DESIGN: Cohort study. SETTING: Research laboratory center in a university...
March 20, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28316072/the-effects-of-dash-diet-on-weight-loss-anti-m%C3%A3-llerian-hormone-and-metabolic-profiles-in-women-with-polycystic-ovary-syndrome-a-randomized-clinical-trial
#18
Fatemeh Foroozanfard, Hamideh Rafiei, Mansooreh Samimi, Hamid Reza Gilasi, Roohangiz Gorjizadeh, Zahra Heidar, Zatollah Asemi
OBJECTIVE: This study was designed to evaluate the effects of the Dietary Approaches to Stop Hypertension (DASH diet) on weight loss, anti-Müllerian hormone (AMH) and metabolic profiles in women with polycystic ovary syndrome (PCOS). DESIGN, PATIENTS AND MEASUREMENTS: A randomized controlled clinical trial was conducted among 60 overweight or obese patients with PCOS. Patients were randomly assigned to receive either low-calorie DASH (N=30) or control diet (N=30) for 12 weeks...
March 18, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28302429/does-bony-regrowth-occur-after-arthroscopic-femoroplasty-in-a-group-of-young-adolescents-femoroplasty-regrowth-in-adolescents
#19
Itay Perets, Asheesh Gupta, Edwin O Chaharbakhshi, Lyall Ashberg, David E Hartigan, Mary R Close, Benjamin G Domb
PURPOSE: To evaluate femoral head-neck bone regrowth and PROs in skeletally immature patients that underwent arthroscopic femoroplasties over a minimum 2-year period. METHODS: Eleven skeletally immature hips (10 patients) with open femoral head physes underwent femoroplasty between October 2008 and November 2013. Inclusion criteria were minimum 2-year follow-up with patient-reported outcomes (PROs) and radiographs preoperatively, at 2 weeks, and at a minimum of 2 years postoperatively...
March 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28302240/a-rare-fetal-firearm-injury
#20
Imran Hashim, Nabila Talat
Firearm injury (FAI) in pregnant women is reported in the literature; however, no reference to date was found to address the neonatal abdominal surgery performed after maternal FAI. FAI during fetal life is extremely rare and very few cases have been reported. We present a report of a 37-week gestation newborn whose mother had an accidental FAI. The neonate was delivered by emergency caesarian section along with emergency laparotomy of the newborn. The baby presented at eight hours of life, who was managed surgically in emergency for multiple small and large bowel perforations and a piece of bullet was recovered from anterior part of thigh...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
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