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https://www.readbyqxmd.com/read/28092910/effects-of-in-utero-and-postnatal-exposure-to-secondhand-smoke-on-lung-function-by-gender-and-asthma-status-the-seven-northeastern-cities-snec-study
#1
Li-Wen Hu, Mo Yang, Shu Chen, Kuntal Shah, Yismaw Hailegiorgis, Richai Burgens, Michael Vaughn, Jin Huang, Pamela Xaverius, Gunther Paul, Lidia Morawska, Tao Lu, Shao Lin, Shou-Qiang Zhong, Min-Li Kong, Yan-Qi Xie, Yuan-Tao Hao, Xiao-Wen Zeng, Zhengmin Qian, Guang-Hui Dong
BACKGROUND: Little information exists on whether gender or asthma status modifies the effects of secondhand smoke (SHS) exposure on lung function. OBJECTIVE: To evaluate whether gender or asthma status modifies the association of SHS exposure with lung function. METHODS: A total of 6,740 children (average 11.6 years) were recruited from 24 districts of 7 cities in northeast China in 2012. SHS exposure included exposure to environmental and maternal smoking both in utero and during early childhood (postnatal)...
January 17, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28092857/universal-efavirenz-determination-in-transport-study-rat-placenta-perfusion-and-placenta-lysate-by-hplc-uv
#2
Lucie Zelena, Josef Reznicek, Martina Ceckova, Hana Sklenarova
Efavirenz is an antiretroviral drug used in the treatment of HIV-positive patients. A simple, fast and sensitive high-performance liquid chromatography (HPLC) method was developed in order to determine efavirenz in three types of samples provided from pharmacokinetic studies. The analysis took 5min and was performed using a C18 analytical column (Discovery HS C18, 150×4.6mm, particle size of 5μm) in isocratic mode with a mobile phase containing acetonitrile and water (65:35, v/v), a flow rate of 1.6mLmin(-1), a sample volume of 10μL and UV detection at 245nm...
January 11, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28092759/effects-of-donor-proliferation-in-development-aid-for-health-on-health-program-performance-a-conceptual-framework
#3
REVIEW
Sarah Wood Pallas, Jennifer Prah Ruger
Development aid for health increased dramatically during the past two decades, raising concerns about inefficiency and lack of coherence among the growing number of global health donors. However, we lack a framework for how donor proliferation affects health program performance to inform theory-based evaluation of aid effectiveness policies. A review of academic and gray literature was conducted. Data were extracted from the literature sample on study design and evidence for hypothesized effects of donor proliferation on health program performance, which were iteratively grouped into categories and mapped into a new conceptual framework...
January 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28092727/sitting-ducks-face-chronic-disease-an-analysis-of-newspaper-coverage-of-sedentary-behaviour-as-a-health-issue-in-australia-2000-2012
#4
Josephine Y Chau, Catriona Bonfiglioli, Amy Zhong, Zeljko Pedisic, Michelle Daley, Bronwyn McGill, Adrian Bauman
Issue addressed: This study examines how sedentary behaviour (too much sitting) was covered as a health issue by Australian newspapers and how physical activity was framed within this newspaper coverage.Methods: Articles featuring sedentary behaviour published in Australian newspapers between 2000 and 2012 were analysed for content and framing. Main outcome measures were volume, number and content of newspaper articles; framing and types of sedentary behaviour; responsibility for the problem of and solutions to high levels of sedentary behaviour; and physical activity mentions and how it was framed within sedentary behaviour coverage...
January 12, 2017: Health Promotion Journal of Australia
https://www.readbyqxmd.com/read/28092725/strontium-ranelate-a-promising-disease-modifying-osteoarthritis-drug
#5
Weiyu Han, Shicai Fan, Xiaochun Bai, Changhai Ding
The articular cartilage and subchondral bone may have potential crosstalk in the development and progression of osteoarthritis (OA). Strontium ranelate (SrR) has the ability to dissociate the bone remodeling process and to change the balance between bone resorption and bone formation. Its effect on subchondral bone makes it a potential disease- modifying osteoarthritis drug (DMOAD) in the treatment of OA. The aim of the current review is to summarize up-to-date pharmacological and clinical data of SrR for OA treatment...
January 16, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28092636/an-analysis-of-intrinsic-variations-of-low-frequency-shear-wave-speed-in-a-stochastic-tissue-model-the-first-application-for-staging-liver-fibrosis
#6
Yu Wang, Min Wang, Jingfeng Jiang
Shear wave elastography is increasingly being used to non-invasively stage liver fibrosis by measuring shear wave speed (SWS). This study quantitatively investigates intrinsic variations among SWS measurements obtained from heterogeneous media such as fibrotic livers. More specifically, it aims to demonstrate that intrinsic variations in SWS measurements, in general, follow a non-Gaussian distribution and are related to the heterogeneous nature of the medium being measured. Using the principle of maximum entropy (ME), our primary objective is to derive a probability density function (PDF) of the SWS distribution in conjunction with a lossless stochastic tissue model...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28092625/adrenergic-control-of-pinealocyte-chondriome-an-in-vitro-study
#7
B Przybylska-Gornowicz, B Lewczuk, N Ziółkowska, M Prusik
Norepinephrine released from sympathetic innervation plays the main role in the regulation of melatonin secretion in mammalian pinealocytes. The present study was conducted for the following reasons: 1) to establish whether the pinealocyte chondriome is controlled by norepinephrine, 2) to determine the effect of adrenergic stimulation on mitochondria, and 3) to characterize adrenoceptors involved in the regulation of the chondriome. The static organ culture of the pineal gland was used. The explants were incubated for 5 consecutive days in control medium and between 20:00 and 08:00 in medium with the presence of 10 μM norepinephrine - adrenergic agonist; isoproterenol - beta-adrenoceptor agonist; cirazoline, methoxamine, M-6364 - alfa1 - adrenoceptors agonists or PMA - activator of PKC...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28092596/a-general-framework-of-dynamic-constrained-multiobjective-evolutionary-algorithms-for-constrained-optimization
#8
Sanyou Zeng, Ruwang Jiao, Changhe Li, Xi Li, Jawdat S Alkasassbeh
A novel multiobjective technique is proposed for solving constrained optimization problems (COPs) in this paper. The method highlights three different perspectives: 1) a COP is converted into an equivalent dynamic constrained multiobjective optimization problem (DCMOP) with three objectives: a) the original objective; b) a constraint-violation objective; and c) a niche-count objective; 2) a method of gradually reducing the constraint boundary aims to handle the constraint difficulty; and 3) a method of gradually reducing the niche size aims to handle the multimodal difficulty...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28092530/feasibility-of-multi-plane-transmit-beamforming-for-real-time-volumetric-cardiac-imaging-a-simulation-study
#9
Yinran Chen, Ling Tong, Alejandra Ortega, Jianwen Luo, Jan D'hooge
Today's three-dimensional (3-D) cardiac ultrasound imaging systems suffer from relatively low spatial and temporal resolution, limiting their applicability in daily clinical practice. To address this problem, 3-D diverging wave imaging with spatial coherent compounding (DWC) as well as 3-D multi-line-transmit (MLT) imaging have recently been proposed. Currently, the former improves the temporal resolution significantly at the expense of image quality and the risk of introducing motion artifacts whereas the latter only provides a moderate gain in volume rate but mostly preserves quality...
January 10, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28092517/transformations-based-on-continuous-piecewise-affine-velocity-fields
#10
Oren Freifeld, Soren Hauberg, Kayhan Batmanghelich, John W Fisher
We propose novel finite-dimensional spaces of well-behaved Rn → Rn transformations. The latter are obtained by (fast and highly-accurate) integration of continuous piecewise-affine velocity fields. The proposed method is simple yet highly expressive, effortlessly handles optional constraints (e.g., volume preservation and/or boundary conditions), and supports convenient modeling choices such as smoothing priors and coarse-to-fine analysis. Importantly, the proposed approach, partly due to its rapid likelihood evaluations and partly due to its other properties, facilitates tractable inference over rich transformation spaces, including using Markov-Chain Monte-Carlo methods...
January 11, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28092506/wideband-2-d-array-design-optimization-with-fabrication-constraints-for-3-d-us-imaging
#11
Emmanuel Roux, Alessandro Ramalli, Herve Liebgott, Christian Cachard, Marc C Robini, Piero Tortoli
Ultrasound (US) 2-D arrays are of increasing interest due to their electronic steering capability to investigate 3-D regions without requiring any probe movement. These arrays are typically populated by thousands of elements that, ideally, should be individually driven by the companion scanner. Since this is not convenient, the so-called microbeamforming methods, yielding a prebeamforming stage performed in the probe handle by suitable custom integrated circuits, have so far been implemented in a few commercial high-end scanners...
January 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28092409/quantification-of-brown-and-white-adipose-tissue-based-on-gaussian-mixture-model-using-water-fat-and-t2-mri-in-adolescents
#12
Steve C N Hui, Jacky K L Ko, Teng Zhang, Lin Shi, David K W Yeung, Defeng Wang, Queenie Chan, Winnie C W Chu
PURPOSE: To develop a technique for the separation and quantification of brown adipose tissue (BAT) and white adipose tissue (WAT) using fat fraction and T2* intensity based on the Gaussian mixture model (GMM). MATERIALS AND METHODS: Chemical-shift water-fat and T2* images were acquired at the neck, supraclavicular, interscapular, and paravertebral regions in 24 volunteers (Obese: n = 12, female/male = 6/6, body mass index [BMI] = 31.3 ± 2.3 kg/m(2) , age = 16...
January 16, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28092401/randomized-clinical-trial-of-preoperative-oral-versus-intravenous-iron-in-anaemic-patients-with-colorectal-cancer
#13
B D Keeler, J A Simpson, O Ng, H Padmanabhan, M J Brookes, A G Acheson
BACKGROUND: Treatment of preoperative anaemia is recommended as part of patient blood management, aiming to minimize perioperative allogeneic red blood cell transfusion. No clear evidence exists outlining which treatment modality should be used in patients with colorectal cancer. The study aimed to compare the efficacy of preoperative intravenous and oral iron in reducing blood transfusion use in anaemic patients undergoing elective colorectal cancer surgery. METHODS: Anaemic patients with non-metastatic colorectal adenocarcinoma were recruited at least 2 weeks before surgery and randomized to receive oral (ferrous sulphate) or intravenous (ferric carboxymaltose) iron...
January 16, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28092336/the-construction-of-expanded-prefabricated-adipose-tissue-epat-using-an-external-volume-expansion-eve-device
#14
Yi Yuan, Shuifa Yang, Yangyan Yi, Jianhua Gao, Feng Lu
BACKGROUND: Multiple studies have demonstrated that mechanical forces promote the growth of adipose tissue. However, the mechanism of adipose tissue regeneration induced by mechanical forces remains unclear. METHODS: In an experiment using rats, prefabricated adipose tissue with a vessel pedicle was expanded using an external volume expansion (EVE) device. The volume of fat flaps was tested at different time points. Cell proliferation and angiogenesis were analyzed using immunofluorescence...
January 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28092335/distribution-pattern-of-the-superior-and-the-inferior-labial-arteries-impact-for-safe-upper-and-lower-lip-augmentation-procedures
#15
Cotofana Sebastian, Pretterklieber Bettina, Lucius Runhild, Frank Konstantin, Haas Maximilian, Schenck L Thilo, Gleiser Corinna, Weyers Imke, Wedel Thilo, Pretterklieber Michael
BACKGROUND: Understanding the precise position and course of the superior and inferior labial arteries within the upper and the lower lip is crucial for safe and complication free applications of volumizing materials. METHODS: 193 anatomic head specimens (56.5% females) of Caucasian ethnicity were investigated in this large multi-centric anatomical study. In total six 3cm long vertical incisions were performed on each lip (midline and 1cm medial to the angles of the mouth) to identify the position of the superior and the inferior labial arteries in relation to the orbicularis oris muscle...
January 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28092299/the-complex-phenotype-of-the-athletes-heart-implications-for-pre-participation-screening
#16
Benjamin Brown, Daniel J Green, Matthew Wilson, Jonathan Drezner, Keith George, David Oxborough
Pre-participation screening is vital to exclude inherited cardiac conditions which have the potential to cause sudden cardiac death in seemingly healthy athletes. Recent research has questioned traditional theories of load-induced, dichotomous cardiac adaptation. We therefore considered whether a "one-size-fits-all" approach to screening can account for inter-individual differences brought about by sporting discipline, training volume, ethnicity, body size, sex and age.
January 13, 2017: Exercise and Sport Sciences Reviews
https://www.readbyqxmd.com/read/28092183/therapeutic-effects-of-hyaluronidase-on-acquired-lymphedema-using-a-newly-developed-mouse-limb-model
#17
Kangsan Roh, Sungrae Cho, Jae-Hyun Park, Byong Chul Yoo, Won-Ki Kim, Seok-Ki Kim, Kyewon Park, Hee Kang, Jin-Mo Ku, Chang-Hwan Yeom, Kyunghoon Lee, Sukchan Lee
Acquired lymphedema is one of the most dreaded side effects of cancer treatment, such as surgical treatment or irradiation. However, due to the lack of appropriate animal models, there is no effective therapeutic method to cure acquired lymphedema. To develop a reproducible acquired lymphedema animal model, we devised a mouse hind limb model by removing a superficial inguinal lymph node, a popliteal lymph node, a deep inguinal lymph node, and the femoral lymphatic vessel. We measured the volume of lymphedematous leg and observed the change in level of hyaluronic acid (HA) and lymphangiogenic factors after injecting hyaluronidase...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28092126/stability-of-a-novel-corticosteroid-nasal-irrigation-solution-betamethasone-17-valerate-added-to-extemporaneously-prepared-nasal-irrigation-solutions
#18
Kheng Yong Ong, Wei Ching Lim, Shing Ming Ooi, Zhi Hui Loh, Ming Chai Kong, Lai Wah Chan, Paul Wan Sia Heng
BACKGROUND: There are no commercially available nasal irrigation solutions containing corticosteroids. Instead, such preparations are extemporaneously prepared by adding existing corticosteroid formulations to nasal irrigation solutions. The stability of the corticosteroid betamethasone 17-valerate (B17V), in nasal irrigation solutions of different compositions and pH and stored under different temperatures, was studied to determine the optimal choice of solution and storage conditions...
January 16, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28092117/directed-balloon-cytology-of-the-esophagus-a-novel-device-for-obtaining-circumferential-cytologic-sampling
#19
Amit A Patel, Marshall Strome, Andrew Blitzer
OBJECTIVE: Current methods of obtaining esophageal cytology include brush biopsy and blind balloon sampling, among others. These methods can be time-consuming if performed in accordance with acknowledged standards. Further, exact site localization can prove to be difficult. We describe a novel device for esophageal sampling using an esophageal balloon with debriding strips contained within the pleats of the balloon. Inflation brings the latter in contact with the surface to be sampled...
January 16, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28092108/pharmacokinetics-and-pharmacodynamics-of-the-injectable-formulation-of-methadone-hydrochloride-and-methadone-in-lipid-nanocarriers-administered-orally-to-horses
#20
N Crosignani, S P Luna, T Dalla Costa, E L Pimenta, C B Detoni, S S Guterres, J N Puoli Filho, J C Pantoja, M C Pigatto
We investigated the thermal, electrical and mechanical antinociceptive and physiological effects (heart rate, respiratory rate, arterial blood pressure, head height and abdominal auscultation score), and pharmacokinetics, of 0.5 mg/kg of the injectable formulation (ORAL) or nanoparticulated methadone (NANO) given orally, in six adult mares, using a crossover, blind and prospective design. Repeated-measure models were used to compare parametric data between and within treatments, followed by Tukey's test. Nonparametric data were analysed with Wilcoxon signed-rank, adjusted by Bonferroni tests...
January 16, 2017: Journal of Veterinary Pharmacology and Therapeutics
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