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https://www.readbyqxmd.com/read/28922692/phosphodiesterase-4-inhibitors-for-chronic-obstructive-pulmonary-disease
#1
REVIEW
Jimmy Chong, Bonnie Leung, Phillippa Poole
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is associated with cough, sputum production or dyspnoea and a reduction in lung function, quality of life and life expectancy. Apart from smoking cessation, there are no other treatments that slow lung function decline. Roflumilast and cilomilast are oral phosphodiesterase 4 (PDE4) inhibitors proposed to reduce the airway inflammation and bronchoconstriction seen in COPD. This is an update of a Cochrane review first published in 2011 and updated in 2013...
September 19, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28922107/colonic-perforation-a-medical-complication
#2
Christopher Parsons, Elizabeth Chan, Richard P T Evans, Moustafa Mabrouk Mourad, Edmund Leung
Hypothyroidism is a common comorbidity that on acute presentation is often overlooked. It can be an easily managed condition; however non-compliance can have severe consequences. In the presented case it was requirement for emergency surgery that resulted in stoma formation. This case is a first example of the need to include patient's decision making process with regards to medication adherence in the setting of chronic disease.
2017: Prague Medical Report
https://www.readbyqxmd.com/read/28921595/the-interplay-of-type-i-and-type-ii-interferons-in-murine-autoimmune-cholangitis-as-a-basis-for-sex-biased-autoimmunity
#3
Heekyong R Bae, Deborah L Hodge, Guo-Xiang Yang, Patrick S C Leung, Sathi Babu Chodisetti, Julio C Valencia, Michael Sanford, John M Fenimore, Ziaur S M Rahman, Koichi Tsuneyama, Gary L Norman, M Eric Gershwin, Howard A Young
We have reported a murine model of autoimmune cholangitis, generated by altering the AU rich element by deletion of the IFN-γ 3'UTR region (coined ARE-Del(-/-) ), that has striking similarities to human primary biliary cholangitis (PBC) with female predominance. Previously, we suggested that the gender bias of autoimmune cholangitis was secondary to intense and sustained type I and II IFN signaling. Based on this thesis, and to define the mechanisms that lead to portal inflammation, we specifically addressed the hypothesis that type I IFNs are the driver of this disease...
September 16, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28919633/clinical-presentation-and-outcomes-in-light-chain-amyloidosis-patients-with-non-evaluable-serum-free-light-chains
#4
S Sidana, N Tandon, A Dispenzieri, M A Gertz, F K Buadi, M Q Lacy, D Dingli, A L Fonder, S R Hayman, M A Hobbs, W I Gonsalves, Y L Hwa, P Kapoor, R A Kyle, N Leung, R S Go, J A Lust, S J Russell, S R Zeldenrust, V Rajkumar, S K Kumar
Hematologic response criteria in light chain (AL) amyloidosis require the difference in involved and uninvolved free light chains (dFLC) to be at least 5 mg/dl. We describe the clinical presentation and outcomes of newly diagnosed amyloidosis patients with dFLC<5 mg/dl (non-evaluable dFLC; 14%, n=165) compared to patients with dFLC ⩾5 mg/dl (evaluable dFLC; 86%, n=975). Patients with non-evaluable dFLC had less cardiac involvement (40 vs 80%, P<0.001), less liver involvement (11 vs 17%, P=0.04) and a trend towards less gastrointestinal involvement (18 vs 25%, P=0...
September 18, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28918676/cross-cultural-adaptation-and-psychometric-properties-of-the-chinese-tinnitus-functional-index
#5
Anna Chi Shan Kam, Eric Kwok Shun Leung, Patrick Yiu Bong Chan, Michael Chi Fai Tong
OBJECTIVES: To establish the reliability, validity and responsiveness of the Chinese version of the Tinnitus Functional Index (TFI-CH) in measuring tinnitus severity in Hong Kong Chinese population. DESIGN: This is a cross-sectional psychometric validation study. STUDY SAMPLE: Subjects were 124 adult Chinese who attended the audiology clinics in a hospital setting for tinnitus treatment. RESULTS: The TFI-CH showed good internal consistency reliability (α = 0...
September 18, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28918484/drug-herb-interactions-in-the-elderly-patient-with-ibd-a-growing-concern
#6
REVIEW
Haider Rahman, Marina Kim, Galen Leung, Jesse A Green, Seymour Katz
Inflammatory bowel disease (IBD), which includes conditions such as Crohn's disease and ulcerative colitis, is becoming more prevalent with the elderly being the fastest growing group. Parallel to this, there is an increasing interest in the use of complementary and alternative medicine (CAM). Nearly half of patients with IBD have used CAM at one time. The elderly patients, however, are burdened by comorbid conditions, polypharmacy, and altered functional status. With increasing use of complementary and alternative medicine in our elderly patients with IBD, it is vital for the provider to provide counsel on drug-herb potential interactions...
September 16, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28916524/new-methods-to-analyze-b-cell-immune-responses-to-thymus-dependent-antigen-sheep-red-blood-cells
#7
Ellen J McAllister, John R Apgar, Charlotte R Leung, Robert C Rickert, Julia Jellusova
B cells contribute critically to an effective immune response by producing Ag-specific Abs. During the immune response to so-called "thymus-dependent Ags," activated B cells seek T cell help and form germinal centers. In contrast, thymus-independent Ags generally do not induce germinal center formation. In the germinal center, B cells undergo somatic hypermutation, affinity-based clonal expansion, and differentiation to produce plasma cells and memory B cells. Valuable insight into these processes has been gained by using model hapten-carrier complexes or SRBCs...
September 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28915977/corrigendum-to-reduced-nitric-oxide-mediated-relaxation-and-endothelial-nitric-oxide-synthase-expression-in-the-tail-arteries-of-streptozotocin-induced-diabetic-rats-eur-j-pharmacol-773-2016-78-84
#8
Siti Safiah Mokhtar, Paul M Vanhoutte, Susan Wai Sum Leung, Rapeah Suppian, Mohd Imran Yusof, Aida Hanum Ghulam Rasool
No abstract text is available yet for this article.
October 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28915023/detecting-activity-at-different-length-scales-from-subdiffraction-to-whole-animal-activity
#9
Tsz-Leung To, Xiaokun Shu
No abstract text is available yet for this article.
September 15, 2017: Biochemistry
https://www.readbyqxmd.com/read/28914269/looking-beyond-the-exome-a-phenotype-first-approach-to-molecular-diagnostic-resolution-in-rare-and-undiagnosed-diseases
#10
Loren D M Pena, Yong-Hui Jiang, Kelly Schoch, Rebecca C Spillmann, Nicole Walley, Nicholas Stong, Sarah Rapisardo Horn, Jennifer A Sullivan, Allyn McConkie-Rosell, Sujay Kansagra, Edward C Smith, Mays El-Dairi, Jane Bellet, Martha Ann Keels, Joan Jasien, Peter G Kranz, Richard Noel, Shashi K Nagaraj, Robert K Lark, Daniel S G Wechsler, Daniela Del Gaudio, Marco L Leung, Laura G Hendon, Collette C Parker, Kelly L Jones, David B Goldstein, Vandana Shashi
PurposeTo describe examples of missed pathogenic variants on whole-exome sequencing (WES) and the importance of deep phenotyping for further diagnostic testing.MethodsGuided by phenotypic information, three children with negative WES underwent targeted single-gene testing.ResultsIndividual 1 had a clinical diagnosis consistent with infantile systemic hyalinosis, although WES and a next-generation sequencing (NGS)-based ANTXR2 test were negative. Sanger sequencing of ANTXR2 revealed a homozygous single base pair insertion, previously missed by the WES variant caller software...
September 14, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28913360/association-between-sedentary-behaviour-and-physical-cognitive-and-psychosocial-status-among-older-adults-in-assisted-living
#11
Pet-Ming Leung, Andreas Ejupi, Kimberley S van Schooten, Omar Aziz, Fabio Feldman, Dawn C Mackey, Maureen C Ashe, Stephen N Robinovitch
OBJECTIVE: Identification of the factors that influence sedentary behaviour in older adults is important for the design of appropriate intervention strategies. In this study, we determined the prevalence of sedentary behaviour and its association with physical, cognitive, and psychosocial status among older adults residing in Assisted Living (AL). METHODS: Participants (n = 114, mean age = 86.7) from AL sites in British Columbia wore waist-mounted activity monitors for 7 consecutive days, after being assessed with the Timed Up and Go (TUG), Montreal Cognitive Assessment (MoCA), Short Geriatric Depression Scale (GDS), and Modified Fall Efficacy Scale (MFES)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28913353/the-effects-of-low-intensity-ultrasound-on-fat-reduction-of-rat-model
#12
Bill Zhou, Benny Yuk Kin Leung, Lei Sun
Nonfocused low-intensity ultrasound is generally believed to be less efficacious than High-Intensity Focused Ultrasound (HIFU) at body fat reduction; nevertheless, this technology has already been widely used clinically for body contouring purposes. This study aimed to evaluate the efficacy and safety of this new technology by applying 1 MHz nonfocused ultrasound at 3 W/cm(2) to the outer-thigh region of rat models. Ultrasonography measurement demonstrated an average reduction of 0.5 mm of subcutaneous fat thickness that persisted for at least three days after treatment...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28912573/low-magnitude-high-frequency-vibration-accelerated-the-foot-wound-healing-of-n5-streptozotocin-induced-diabetic-rats-by-enhancing-glucose-transporter-4-and-blood-microcirculation
#13
Caroline Oi-Ling Yu, Kwok-Sui Leung, Jonney Lei Jiang, Tina Bai-Yan Wang, Simon Kwoon-Ho Chow, Wing-Hoi Cheung
Delayed wound healing is a Type 2 diabetes mellitus (DM) complication caused by hyperglycemia, systemic inflammation, and decreased blood microcirculation. Skeletal muscles are also affected by hyperglycemia, resulting in reduced blood flow and glucose uptake. Low Magnitude High Frequency Vibration (LMHFV) has been proven to be beneficial to muscle contractility and blood microcirculation. We hypothesized that LMHFV could accelerate the wound healing of n5-streptozotocin (n5-STZ)-induced DM rats by enhancing muscle activity and blood microcirculation...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912017/indoleamine-2-3-dioxygenase-1-increased-in-human-gastric-pre-neoplasia-promotes-inflammation-and-metaplasia-in-mice-and-is-associated-with-type-ii-hypersensitivity-autoimmunity
#14
Mohamad El-Zaatari, Adam J Bass, Reanne Bowlby, Min Zhang, Li-Jyun Syu, Yitian Yang, Helmut Grasberger, Andrew Shreiner, Bei Tan, Shrinivas Bishu, Wai K Leung, Andrea Todisco, Nobuhiko Kamada, Marilia Cascalho, Andrzej A Dlugosz, John Y Kao
BACKGROUND & AIMS: Chronic gastrointestinal inflammation increases the risk of cancer by mechanisms that are not well understood. Indoleamine-2,3-dioxygenase 1 (IDO1) is a heme-binding enzyme that regulates the immune response via catabolization and regulation of tryptophan availability for immune cell uptake. IDO1 expression is increased during the transition from chronic inflammation to gastric metaplasia. We investigated whether IDO1 contributes to the inflammatory response that mediates loss of parietal cells leading to metaplasia...
September 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28911993/ocular-manifestations-of-familial-transthyretin-amyloidosis
#15
Margaret M Reynolds, Kevin K Veverka, Morie A Gertz, Angela Dispenzieri, Steven R Zeldenrust, Nelson Leung, Jose S Pulido
PURPOSE: Among patients with familial amyloidosis, mutation in the transthyretin (TTR) protein is the most common type. Patients with TTR amyloidosis have been noted to have ocular, especially vitreous, involvement. In this report, an analysis of the types and frequency of ocular manifestations in TTR amyloidosis is presented. DESIGN: Observational case series. METHODS: Two hundred and sixty-three patients who presented to Mayo Clinic with TTR amyloidosis between January 1, 1970, and November 1, 2014, consented to be included in the Mayo Clinic amyloidosis database maintained by the Department of Hematology...
September 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28911764/global-respiratory-syncytial-virus-associated-mortality-in-young-children-rsv-gold-a-retrospective-case-series
#16
Nienke M Scheltema, Angela Gentile, Florencia Lucion, D James Nokes, Patrick K Munywoki, Shabir A Madhi, Michelle J Groome, Cheryl Cohen, Jocelyn Moyes, Kentigern Thorburn, Somsak Thamthitiwat, Hitoshi Oshitani, Socorro P Lupisan, Aubree Gordon, José F Sánchez, Katherine L O'Brien, Bradford D Gessner, Agustinus Sutanto, Asuncion Mejias, Octavio Ramilo, Najwa Khuri-Bulos, Natasha Halasa, Fernanda de-Paris, Márcia Rosane Pires, Michael C Spaeder, Bosco A Paes, Eric A F Simões, Ting F Leung, Maria Tereza da Costa Oliveira, Carla Cecília de Freitas Lázaro Emediato, Quique Bassat, Warwick Butt, Hsin Chi, Uzma Bashir Aamir, Asad Ali, Marilla G Lucero, Rodrigo A Fasce, Olga Lopez, Barbara A Rath, Fernando P Polack, Jesse Papenburg, Srđan Roglić, Hisato Ito, Edward A Goka, Diederick E Grobbee, Harish Nair, Louis J Bont
BACKGROUND: Respiratory syncytial virus (RSV) infection is an important cause of pneumonia mortality in young children. However, clinical data for fatal RSV infection are scarce. We aimed to identify clinical and socioeconomic characteristics of children aged younger than 5 years with RSV-related mortality using individual patient data. METHODS: In this retrospective case series, we developed an online questionnaire to obtain individual patient data for clinical and socioeconomic characteristics of children aged younger than 5 years who died with community-acquired RSV infection between Jan 1, 1995, and Oct 31, 2015, through leading research groups for child pneumonia identified through a comprehensive literature search and existing research networks...
October 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28911173/lithium-chloride-increases-cox-2-expression-and-pge2-production-in-a-human-granulosa-lutein-svog-cell-line-via-a-gsk-3%C3%AE-%C3%AE-catenin-signaling-pathway
#17
Long Bai, Hsun-Ming Chang, Jung-Chien Cheng, Guiyan Chu, Peter C K Leung, Gongshe Yang
Lithium chloride (LiCl) is widely prescribed for the treatment of bipolar disorders and is associated with a higher incidence of reproductive adverse effects. Cyclooxygenase (COX)-2 and its derivative, prostaglandin E2 (PGE2), play regulatory roles in the human ovulatory process. Whether LiCl affects ovulation by regulating COX2 expression and PGE2 production in the human ovary is still largely unknown. The aim of this study was to investigate the effect of LiCl on the expression of COX-2 and production of PGE2 in human granulosa-lutein (hGL) cells, as well as the mechanisms underlying this effect...
September 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28906321/variceal-hemorrhage-and-adverse-liver-outcomes-in-patients-with-cystic-fibrosis-cirrhosis
#18
Wen Ye, Michael R Narkewicz, Daniel H Leung, Wikrom Karnsakul, Karen F Murray, Estella M Alonso, John C Magee, Sarah Jane Schwarzenberg, Alexander Weymann, Jean P Molleston
OBJECTIVES: Cirrhosis occurs in 5-10% of CF (cystic fibrosis) patients, often accompanied by portal hypertension. We analyzed three adverse liver outcomes, variceal bleeding (VB), liver transplant (LT), and liver death (LD), and risk factors for these in CF Foundation Patient Registry (CFFPR) subjects with reported cirrhosis. METHODS: We determined 10-year incidence rates for VB, LT, LD, and all-cause mortality (ACM), and examined risk factors using competing risk models and Cox-proportional hazard regression...
September 12, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28906294/fecal-calprotectin-in-pregnancy
#19
Astrid-Jane Greenup, Greg Rosenfeld, Yvette Leung
No abstract text is available yet for this article.
October 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28906014/development-and-initial-validation-of-a-novel-smoothed-particle-hydrodynamics-based-simulation-model-of-trabecular-bone-penetration-by-metallic-implants
#20
Sloan A Kulper, Christian X Fang, Xiaodan Ren, Margaret Guo, K Y Sze, Frankie Kl Leung, William W Lu
A novel computational model of implant migration in trabecular bone was developed using smoothed-particle hydrodynamics (SPH), and an initial validation was performed via correlation with experimental data. Six fresh-frozen human cadaveric specimens measuring 10 × 10 × 20 mm were extracted from the proximal femurs of female donors (mean age of 82 years, range 75-90, BV/TV ratios between 17.88-30.49%). These specimens were then penetrated under axial loading to a depth of 10 mm with 5 mm diameter cylindrical indenters bearing either flat or sharp/conical tip designs similar to blunt and self-tapping cancellous screws, assigned in a random manner...
September 14, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
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