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https://www.readbyqxmd.com/read/28637237/long-term-evolutionary-change-in-the-lumen-of-intracranial-atherosclerotic-stenosis-following-angioplasty-and-stenting
#1
Simon C H Yu, Tiffany W W Lau, Simon S M Wong, Kwok T Lee, Lawrence K S Wong, Thomas W H Leung
BACKGROUND: Angioplasty and stenting is a recognized treatment option for patients with intracranial atherosclerosis. OBJECTIVE: To evaluate the long-term evolutionary luminal changes of intracranial atherosclerosis after angioplasty and stenting. METHODS: This was a retrospective study with patient consent. Eighty-two patients presenting with acute and minor cerebral ischemia due to stenosis ≥70%, who had received medical therapy with or without stenting (Wingspan), were invited...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28634623/knot-integrity-using-different-suture-types-and-different-knot-tying-techniques-for-reconstructive-pelvic-floor-procedures
#2
Omar F Dueñas-Garcia, Gina M Sullivan, Katherine Leung, Kristen L Billiar, Michael K Flynn
INTRODUCTION AND HYPOTHESIS: Surgeons use a variety of sutures and knot-tying methods during pelvic reconstructive procedures. We hypothesized that knot-strength integrity will be similar with regards to type of knot, type of suture, and the knot-tying process. METHODS: Using six different suture materials, flat square knots and slip knots were tied robotically and by hand by two surgeons. Knot integrity was evaluated using an Instron 5544 machine. We measured force and elongation at suture failure or knot slippage (whichever came first) as well as force at 3-mm displacement...
June 20, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28631999/adapting-healthcare-quality-measures-to-transgender-individuals
#3
Landon D Hughes, Olivia K G Berzin, Musetta Leung, Catherine Hersey, Sarah Grallert
The healthcare system's rapid shift toward value-based payment poses unique quality measurement challenges and new foci for researchers and policy makers. Quality measures that use sex-specific criteria may inappropriately include or exclude transgender individuals. More large-scale studies must be conducted to incorporate transgender individuals into measures that use sex-specific criteria, and "measure stewards" should consider the existing clinical guidelines and recommendations regarding transgender individuals when developing measures...
June 20, 2017: LGBT Health
https://www.readbyqxmd.com/read/28631187/serine-peptidase-inhibitor-kazal-type-1-spink1-as-novel-downstream-effector-of-the-cadherin-17-%C3%AE-catenin-axis-in-hepatocellular-carcinoma
#4
Felix H Shek, Ruibang Luo, Brian Y H Lam, Wing Kin Sung, Tak-Wah Lam, John M Luk, Ming Sum Leung, Kin Tak Chan, Hector K Wang, Chung Man Chan, Ronnie T Poon, Nikki P Lee
BACKGROUND: Hepatocellular carcinoma (HCC) is the most common type of liver cancer worldwide. Previously, we reported that cadherin-17 (CDH17) and its related CDH17/β-catenin axis may be responsible for inducing HCC in a subset of patients exhibiting CDH17 over-expression. Here we aimed at obtaining a better understanding of the CDH17-related HCC biology and to obtain further indications for the design of targeted therapies in CDH17 over-expressing HCC patients. RESULTS: We found that SPINK1 acts as a downstream effector of the CDH17/β-catenin axis in HCC...
June 19, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28630943/parasites-lacking-the-micronemal-protein-mic2-are-deficient-in-surface-attachment-and-host-cell-egress-but-remain-virulent-in-vivo
#5
Simon Gras, Allison Jackson, Stuart Woods, Gurman Pall, Jamie Whitelaw, Jacqueline M Leung, Gary E Ward, Craig W Roberts, Markus Meissner
Background: Micronemal proteins of the thrombospondin-related anonymous protein (TRAP) family are believed to play essential roles during gliding motility and host cell invasion by apicomplexan parasites, and currently represent major vaccine candidates against Plasmodium falciparum, the causative agent of malaria. However, recent evidence suggests that they play multiple and different roles than previously assumed. Here, we analyse a null mutant for MIC2, the TRAP homolog in Toxoplasma gondii. Methods: We performed a careful analysis of parasite motility in a 3D-environment, attachment under shear stress conditions, host cell invasion and in vivo virulence...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28630422/basic-surface-features-of-nuclear-fkbps-facilitate-chromatin-binding
#6
Andrew Leung, Francy-Pesek Jardim, Neda Savic, Yoan R Monneau, Rodrigo González-Romero, Geoff Gudavicius, Jose M Eirin-Lopez, Till Bartke, Cameron D Mackereth, Juan Ausió, Christopher J Nelson
The nucleoplasmin family of histone chaperones is identified by a pentamer-forming domain and multiple acidic tracts that mediate histone binding and chaperone activity. Within this family, a novel domain organization was recently discovered that consists of an N-terminal nucleoplasmin-like (NPL) domain and a C-terminal FKBP peptidyl-proline isomerase domain. Saccharomyces cerevisiae Fpr4 is one such protein. Here we report that in addition to its known histone prolyl isomerase activities, the Fpr4 FKBP domain binds to nucleosomes and nucleosome arrays in vitro...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629732/impact-of-granulocyte-contamination-on-pbmc-integrity-of-shipped-blood-samples-implications-for-multi-center-studies-monitoring-regulatory-t-cells
#7
Charuta Agashe, David Chiang, Alexander Grishin, Madhan Masilamani, Stacie M Jones, Robert A Wood, Scott H Sicherer, A Wesley Burks, Donald Y M Leung, Peter Dawson, Hugh A Sampson, M Cecilia Berin
In centralized immune monitoring for a multi-center allergen immunotherapy trial, we observed frequent loss of CD4(+) T cell integrity following staining of cultured PBMCs with our regulatory T cell flow cytometry panel. Samples were marked by a loss of total cellular events, altered scatter properties, and reduced CD3(+)CD4(+) events. This occurred only in samples that were stained with Foxp3 and were therefore treated with Foxp3 fixation-permeabilization buffer. We identified granulocyte contamination in samples associated with a loss of integrity, and went on to test the impact of granulocyte depletion on day-old blood samples...
June 16, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28629484/outbreak-of-non-tuberculous-mycobacteria-skin-or-soft-tissue-infections-associated-with-handling-fish-new-york-city-2013-2014
#8
K Yacisin, J L Hsieh, D Weiss, J Ackelsberg, E Lee, L Jones, Y L Leung, L Li, J Yung, S Slavinski, H Hanson, A Ridpath, J Kornblum, Y Lin, S Robbe-Austerman, J Rakeman, U Siemetzki-Kapoor, T Stuber, S K Greene
Mycobacterium marinum, a bacterium found in freshwater and saltwater, can infect persons with direct exposure to fish or aquariums. During December 2013, the New York City Department of Health and Mental Hygiene learned of four suspected or confirmed M. marinum skin or soft tissue infections (SSTIs) among persons who purchased whole fish from Chinese markets. Ninety-eight case-patients with non-tuberculous mycobacteria (NTM) SSTIs were identified with onset June 2013-March 2014. Of these, 77 (79%) were female...
June 20, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28629115/osthole-enhances-osteogenesis-in-osteoblasts-by-elevating-transcription-factor-osterix-via-camp-creb-signaling-in-vitro-and-in-vivo
#9
Zhong-Rong Zhang, Wing Nang Leung, Gang Li, Siu Kai Kong, Xiong Lu, Yin Mei Wong, Chun Wai Chan
Anabolic anti-osteoporotic agents are desirable for treatment and prevention of osteoporosis and fragility fractures. Osthole is a coumarin derivative extracted from the medicinal herbs Cnidium monnieri (L.) Cusson and Angelica pubescens Maxim.f. Osthole has been reported with osteogenic and anti-osteoporotic properties, whereas the underlying mechanism of its benefit still remains unclear. The objective of the present study was to investigate the osteopromotive action of osthole on mouse osteoblastic MC3T3-E1 cells and on mouse femoral fracture repair, and to explore the interaction between osthole-induced osteopromotive effect and cyclic adenosine monophosphate (cAMP) elevating effect...
June 8, 2017: Nutrients
https://www.readbyqxmd.com/read/28628600/alterations-in-brain-derived-neurotrophic-factor-and-insulin-like-growth-factor-1-protein-levels-after-penetrating-ballistic-like-brain-injury-in-rats
#10
Sindhu K Madathil, Ying Deng-Bryant, Bernard S Wilfred, Lai Yee Leung, Janice S Gilsdorf, Deborah A Shear
BACKGROUND: Brain-derived neurotrophic factor (BDNF) and insulin-like growth factor-1 (IGF-1) are essential for neuroplasticity and neuronal survival. Despite the importance of these endogenous factors in mediating posttraumatic recovery, little is known about their response after penetrating type traumatic brain injury. The objective of this study was to quantify the expression levels BDNF and IGF-1, two well-known neuroplasticity mediators, after penetrating ballistic-like brain injury (PBBI)...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28627750/emergent-low-symmetry-phases-and-large-property-enhancements-in-ferroelectric-knbo3-bulk-crystals
#11
Tom T A Lummen, J Leung, Amit Kumar, X Wu, Y Ren, Brian K VanLeeuwen, Ryan C Haislmaier, Martin Holt, Keji Lai, Sergei V Kalinin, Venkatraman Gopalan
The design of new or enhanced functionality in materials is traditionally viewed as requiring the discovery of new chemical compositions through synthesis. Large property enhancements may however also be hidden within already well-known materials, when their structural symmetry is deviated from equilibrium through a small local strain or field. Here, the discovery of enhanced material properties associated with a new metastable phase of monoclinic symmetry within bulk KNbO3 is reported. This phase is found to coexist with the nominal orthorhombic phase at room temperature, and is both induced by and stabilized with local strains generated by a network of ferroelectric domain walls...
June 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28627559/a-luminescent-lanthanide-approach-towards-direct-visualization-of-primary-cilia-in-living-cells
#12
Hongguang Li, Rongfeng Lan, Chi-Fai Chan, Guochen Bao, Chen Xie, Pak-Ho Chu, William C S Tai, Shuai Zha, Jing-Xiang Zhang, Ka-Leung Wong
We report a direct imaging tool, HGEu001, for primary cilia in living cells, which is specific, and based on the UV light or near infrared laser (via two-photon excitation) induced long-lived europium luminescence.
June 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28626983/comparison-of-systemic-pharmacodynamic-effects-of-two-combination-pressurised-metered-dose-inhalers-that-deliver-salmeterol-and-fluticasone-propionate
#13
Lester I Harrison, Victoria Sessions, Christopher J Wiggenhorn, David Chalmers, Pui Leung, John Efthimiou
AIM: The aim was to test the systemic pharmacodynamic effects of the salmeterol component of two pressurized metered dose inhalers that delivered a combination of salmeterol and fluticasone propionate (SM/FP). METHODS: This was a six-way crossover study in 43 adult subjects, using a single blind design (subject blinded to product and clinical assessor blinded for all measurements). Each subject received single doses of 2, 6, and 12 inhalations from test and reference products that delivered SM/FP as 25/125 mcg per inhalation...
June 19, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28625456/the-effect-of-ondansetron-on-analgesic-efficacy-of-acetaminophen-after-hysterectomy-a-randomized-double-blinded-placebo-controlled-trial
#14
Onur Koyuncu, Steve Leung, Jing You, Menekse Oksar, Selim Turhanoglu, Cagla Akkurt, Kenan Dolapcioglu, Hanifi Sahin, Daniel I Sessler, Alparslan Turan
OBJECTIVES: To determine that perioperative ondansetron reduces the analgesic efficacy of acetaminophen. DESIGN: Randomized, double-blinded study. PATIENTS: 120 patients ASA I-II who underwent abdominal hysterectomy. INTERVENTIONS: All the patients were given 1g acetaminophen at skin closure. Patients were divided into two groups; ondansetron HCl (8mg, 2ml IV) (Group I, N=60) and saline (2ml IV) (Group II, N=60) at the skin closure...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28624500/phoenixin-14-concentrations-are-increased-in-association-with-luteinizing-hormone-and-nesfatin-1-concentrations-in-women-with-polycystic-ovary-syndrome
#15
Kamra Ullah, Tanzil Ur Rahman, Dan-Dan Wu, Xian-Hua Lin, Ye Liu, Xiao-Yan Guo, Peter C K Leung, Run-Ju Zhang, He-Feng Huang, Jian-Zhong Sheng
BACKGROUND: Polycystic ovary syndrome (PCOS) is commonly characterized by obesity, insulin resistance (IR), hyperandrogenemia and hirsutism. Following the reported relationship between phoenixin-14 and gonadotropin production in rat hypothalamic-pituitary-gonadal axis, the present study was designed to investigate the circulating concentrations of phoenixin-14 and their associations with the concentrations of sex hormones including luteinizing hormone (LH), follicular stimulating hormone (FSH), estradiol (E2), progesterone (P4) and total testosterone (TT) in PCOS patients...
June 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28624341/extranodal-lymphoma-arising-within-the-maxillary-alveolus-a-case-report
#16
David MacDonald, Thomas Li, Siu Fai Leung, Justin Curtin, Andy Yeung, Montgomery A Martin
OBJECTIVE: Extranodal lymphomas affecting the head and neck arise infrequently within the bones of the jaws. This is a report of a symptom-free patient whose general dentist detected a radiolucency as an incidental finding on conventional radiography. STUDY DESIGN: The conventional radiography of lesions in the maxilla displayed "floating teeth" indicative of malignancy. This case was then imaged by cone beam computed tomography (CBCT), multidetector computed tomography (MDCT), and magnetic resonance imaging (MRI)...
May 4, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28623621/development-of-integrative-medicine-in-hong-kong-china
#17
Ting Hung Leung, Wendy Wong
No abstract text is available yet for this article.
July 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28623275/influences-of-temperature-and-salinity-on-physicochemical-properties-and-toxicity-of-zinc-oxide-nanoparticles-to-the-marine-diatom-thalassiosira-pseudonana
#18
Mana M N Yung, Kevin W H Kwok, Aleksandra B Djurišić, John P Giesy, Kenneth M Y Leung
Climate change is predicted to result in rising average temperature of seawater with more extreme thermal events, and frequent rainfalls in some coastal regions. It is imperative to understand how naturally mediated changes in temperature and salinity can modulate toxicity of chemical contaminants to marine life. Thus, this study investigated combined effects of temperature and salinity on toxicity of zinc oxide nanoparticles (ZnO-NPs) to the marine diatom Thalassiosira pseudonana. Because ZnO-NPs formed larger aggregations and released less zinc ions (Zn(2+)) at greater temperature and salinity, toxicity of ZnO-NPs to T...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622306/changes-in-uninvolved-immunoglobulins-during-induction-therapy-for-newly-diagnosed-multiple-myeloma
#19
P Ravi, S Kumar, W Gonsalves, F Buadi, M Q Lacy, R S Go, A Dispenzieri, P Kapoor, J A Lust, D Dingli, Y Lin, S J Russell, N Leung, M A Gertz, R A Kyle, P L Bergsagel, S V Rajkumar
Little is known about the impact of multiple myeloma (MM) treatment on uninvolved immunoglobulins (Ig). We identified 448 patients who received high-dose dexamethasone (HD-DEX), lenalidomide and dexamethasone (RD), bortezomib and dexamethasone (VD), bortezomib, cyclophosphamide and dexamethasone (VCD) or bortezomib, lenalidomide and dexamethasone (VRD) for newly diagnosed MM at our institution between 2000 and 2013, and who had available data on absolute lymphocyte count (ALC) and quantitative uninvolved Ig at baseline and at the end of four cycles of therapy...
June 16, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28621532/synthesis-of-luminescent-platinum-ii-2-6-bis-n-dodecylbenzimidazol-2-yl-pyridine-foldamers-and-their-supramolecular-assembly-and-metallogel-formation
#20
Michael Ho-Yeung Chan, Maggie Ng, Sammual Yu-Lut Leung, Wai Han Lam, Vivian Wing-Wah Yam
Dinuclear alkynylplatinum(II) metallofoldamers with an oligomeric m-phenyleneethynylene backbone have been designed with the incorporation of a sterically undemanding, π-conjugated, and hydrophobic 2,6-bis(N-dodecylbenzimidazol-2'-yl)pyridine pincer ligand. The complex with the optimal chain length has been found to exhibit gelation behavior via stabilization by noncovalent Pt···Pt and π-π stacking interactions in the hierarchical architecture constructed from the single-turn helix. The chain lengths of the complexes have been found to be a critical determinant for their gelation behavior, conformations, and morphologies...
June 16, 2017: Journal of the American Chemical Society
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