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https://www.readbyqxmd.com/read/28528506/exposure-of-marine-mussels-to-diclofenac-modulation-of-prostaglandin-biosynthesis
#1
Frédérique Courant, Lauren Arpin-Pont, Bénilde Bonnefille, Sébastien Vacher, Marina Picot-Groz, Elena Gomez, Hélène Fenet
Human pharmaceuticals, such as nonsteroidal anti-inflammatory drugs (NSAIDs), are an emerging threat to marine organisms. NSAIDs act through inhibition of cyclooxygenase (COX) conversion of arachidonic acid into prostaglandins. One experiment was carried out whereby marine mussels were exposed for 72 h to 1 and 100 μg/L diclofenac (DCF). A specific and sensitive method using liquid chromatography high-resolution tandem mass spectrometry was developed to quantify DCF in mussel tissues. The developed method could also clearly identify and quantify COX products, i...
May 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528338/chronic-glibenclamide-treatment-attenuates-walker-256-tumour-growth-in-prediabetic-obese-rats
#2
Claudinéia Conationi da Silva Franco, Carina Previate, Kátia Gama de Barros Machado, Silvano Piovan, Rosiane Aparecida Miranda, Kelly Valério Prates, Veridiana Mota Moreira, Júlio Cezar de Oliveira, Luiz Felipe Barella, Rodrigo Mello Gomes, Flávio Andrade Francisco, Isabela Peixoto Martins, Audrei Pavanello, Tatiane Aparecida Ribeiro, Laize Peron Tófolo, Ananda Malta, Aline Amenencia de Souza, Vander Silva Alves, Sandra da Silva Silveira, Maria Raquel Marçal Natali, Jean Carlos Fernando Besson, Hely de Morais, Helenir Medri de Souza, Juliane Rocha de Sant Anna, Marialba Avezum Alves de Castro Prado, Paulo Cezar de Freitas Mathias
BACKGROUND/AIMS: The sulphonylurea glibenclamide (Gli) is widely used in the treatment of type 2 diabetes. In addition to its antidiabetic effects, low incidences of certain types of cancer have been observed in Gli-treated diabetic patients. However, the mechanisms underlying this observation remain unclear. The aim of the present work was to evaluate whether obese adult rats that were chronically treated with an antidiabetic drug, glibenclamide, exhibit resistance to rodent breast carcinoma growth...
May 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28527296/performances-and-working-mechanism-of-a-novel-polycarboxylate-superplasticizer-synthesized-through-changing-molecular-topological-structure
#3
Xiao Liu, Jianan Guan, Guanghong Lai, Ziming Wang, Jie Zhu, Suping Cui, Mingzhang Lan, Huiqun Li
A novel star-shaped polycarboxylate superplasticizer (SPCE) was synthesized through a simple two-step method. (1)H Nuclear Magnetic Resonance ((1)H NMR) and Infrared Spectroscopy (IR) measurements were used for structural characterization. SPCE and comb-shaped polycarboxylate superplasticizer (CPCE) with same molecular weights were designed and synthesized. The cement paste containing SPCE exhibited better fluidity, fluidity retention, water reduction, 25% lower saturated dosage of PCE, 10% longer setting time, lower hydration heat, more delayed hydration heat evolution and lower amount of hydration products at early ages...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527156/the-effect-of-aerobic-or-aerobic-strength-exercise-on-body-composition-and-functional-capacity-in-patients-with-bmi-%C3%A2-35-after-bariatric-surgery-a-randomized-control-trial
#4
Alireza Hassannejad, Alireza Khalaj, Mohammad Ali Mansournia, Mastaneh Rajabian Tabesh, Zahra Alizadeh
BACKGROUND: Although previous studies suggested that bariatric surgery is the most effective and sustainable treatment method for morbid obesity in long term, but without changing in lifestyle, maintaining optimal weight loss is almost impossible. METHODS: Sixty morbid obese patients (BMI ≥ 35) were evaluated before and after 12 weeks of bariatric surgery in order to compare the impact of two different exercise programs on body composition and functional capacity outcomes...
May 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28526913/mapping-qtls-controlling-kernel-dimensions-in-a-wheat-inter-varietal-ril-mapping-population
#5
Ruiru Cheng, Zhongxin Kong, Liwei Zhang, Quan Xie, Haiyan Jia, Dong Yu, Yulong Huang, Zhengqiang Ma
Seven kernel dimension QTLs were identified in wheat, and kernel thickness was found to be the most important dimension for grain weight improvement. Kernel morphology and weight of wheat (Triticum aestivum L.) affect both yield and quality; however, the genetic basis of these traits and their interactions has not been fully understood. In this study, to investigate the genetic factors affecting kernel morphology and the association of kernel morphology traits with kernel weight, kernel length (KL), width (KW) and thickness (KT) were evaluated, together with hundred-grain weight (HGW), in a recombinant inbred line population derived from Nanda2419 × Wangshuibai, with data from five trials (two different locations over 3 years)...
May 19, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28526753/altered-feto-placental-vascularization-feto-placental-malperfusion-and-fetal-growth-restriction-in-mice-with-egfl7-loss-of-function
#6
Lauretta A Lacko, Romulo Hurtado, Samantha Hinds, Michael G Poulos, Jason M Butler, Heidi Stuhlmann
EGFL7 is a secreted, angiogenic factor produced by embryonic endothelial cells. To understand its role in placental development, we established a novel Egfl7 knockout mouse. The mutant mice have gross defects in chorioallantoic branching morphogenesis and placental vascular patterning. Microangiography and 3D imaging revealed patchy perfusion of Egfl7(-/-) placentas marked by impeded blood conductance through sites of narrowed vessels. Consistent with poor feto-placental perfusion, Egfl7 knockout resulted in reduced placental weight and fetal growth restriction...
May 19, 2017: Development
https://www.readbyqxmd.com/read/28526613/the-role-of-trochanteric-flip-osteotomy-in-fixation-of-certain-acetabular-fractures
#7
Sandeep Gupta, Jagdeep Singh, Jagandeep Singh Virk
PURPOSE: Complete visualization of certain acetabular fractures of posterior wall or column with cranial extension involving superior dome from standard surgical exposures is a challenge. Osteotomy of the greater trochanter has been used to enhance fracture visualization, especially the dome, in posterior and lateral exposures of the acetabulum. It also decreases the need for excessive muscle retraction. The purpose of the study was to investigate the outcome associated with trochanteric flip osteotomy in the management of certain acetabulum fractures...
March 23, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28526376/the-excessive-caloric-intake-and-micronutrient-deficiencies-related-to-obesity-after-a-long-term-interdisciplinary-therapy
#8
Vanessa Fadanelli Schoenardie Poli, Ricardo Badan Sanches, Amanda Dos Santos Moraes, João Pedro Novo Fidalgo, Maythe Amaral Nascimento, Paula Bresciani, Stephan Garcia Andrade-Silva, Marcos Alberto Taddeo Cipullo, José Carlos Clemente, Danielle Arisa Caranti
OBJECTIVE: The aim of this study was to assess the effectiveness of a long-term interdisciplinary lifestyle modification therapy on food intake, body composition, and anthropometric measurements of obese women. METHODS: Seventy obese women (age 41 ± 5.9 y) attended the interdisciplinary therapy, with nutrition, physical exercise, physiotherapy, and psychological support during the course of 1 y. Usual food intake was estimated by 3-d dietary record. Dual-energy x-ray absorptiometry was performed to determine body fat and fat-free mass...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526182/pharmacologic-management-of-type-2-diabetes-mellitus-available-therapies
#9
James Thrasher
Choices for the treatment of type 2 diabetes mellitus (T2DM) have multiplied as our understanding of the underlying pathophysiologic defects has evolved. Treatment should target multiple defects in T2DM and follow a patient-centered approach that considers factors beyond glycemic control, including cardiovascular risk reduction. The American Association of Clinical Endocrinologists/American College of Endocrinology and the American Diabetes Association recommend an initial approach consisting of lifestyle changes and monotherapy, preferably with metformin...
May 12, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28526170/body-mass-change-in-flying-homing-pigeons-externally-exposed-to-deepwater-horizon-crude-oil
#10
Cristina R Perez, John K Moye, Dave Cacela, Karen M Dean, Chris A Pritsos
The Deepwater Horizon oil spill contaminated thousands of miles of habitat valuable to hundreds of species of migratory and resident birds of the Gulf of Mexico. Many birds died as a direct result of the oil spill; however, the indirect effects of oil exposure on the flight ability and body condition of birds are difficult to assess in situ. This study utilizes the homing pigeon as a surrogate species for migratory birds to investigate the effect of multiple external oil exposures on the flight performance and body mass change of birds over a series of repeated flights from 136...
May 16, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28525977/the-intracerebral-hemorrhage-acutely-decreasing-arterial-pressure-trial-ii-ich-adapt-ii-protocol
#11
Laura Gioia, Ana Klahr, Mahesh Kate, Brian Buck, Dariush Dowlatshahi, Thomas Jeerakathil, Derek Emery, Kenneth Butcher
BACKGROUND: Aggressively lowering blood pressure (BP) in acute intracerebral hemorrhage (ICH) may improve outcome. Although there is no evidence that BP reduction changes cerebral blood flow, retrospective magnetic resonance imaging (MRI) studies have demonstrated sub-acute ischemic lesions in ICH patients. The primary aim of this study is to assess ischemic lesion development in patients randomized to two different BP treatment strategies. We hypothesize aggressive BP reduction is not associated with ischemic injury after ICH...
May 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28525944/oxidative-stress-and-some-biochemical-alterations-due-to-scorpion-leiurus-quinquestriatus-crude-venom-in-rats
#12
Muhammad M A Salman, Seddik Hammad
Scorpion envenomation is a common medical problem in many countries; it is an important cause of morbidity and mortality. The venom of Leiurus quinquestriatus (LQ) is responsible for a number of deaths in children and adults. It has been stated that specific pathophysiological conditions such as generation of oxygen free radicals may trigger the onset of multiple organ dysfunction; therefore, the present study aimed to assess the oxidative stress mediated by LQ crude venom and its effect on the biochemical parameters in rats...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525914/cigarette-filter-ventilation-and-its-relationship-to-increasing-rates-of-lung-adenocarcinoma
#13
Min-Ae Song, Neal L Benowitz, Micah Berman, Theodore M Brasky, K Michael Cummings, Dorothy K Hatsukami, Catalin Marian, Richard O'Connor, Vaughan W Rees, Casper Woroszylo, Peter G Shields
The 2014 Surgeon General's Report on smoking and health concluded that changing cigarette designs have caused an increase in lung adenocarcinomas, implicating cigarette filter ventilation that lowers smoking machine tar yields. The Food and Drug Administration (FDA) now has the authority to regulate cigarette design if doing so would improve public health. To support a potential regulatory action, two weight-of-evidence reviews were applied for causally relating filter ventilation to lung adenocarcinoma. Published scientific literature (3284 citations) and internal tobacco company documents contributed to causation analysis evidence blocks and the identification of research gaps...
December 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28525445/priorities-and-preferences-for-weight-management-and-cardiovascular-risk-reduction-in-primary-care
#14
Lynne S Nemeth, LaShanta J Rice, Maryellen Potts, Cathy Melvin, Melanie Jefferson, Chanita Hughes-Halbert
Implementing behavioral interventions for cardiovascular risk reduction and weight management is challenging in primary care. Primary care patients and providers were recruited for qualitative interviews to identify priorities and preferences for addressing weight management. Thematic analysis was used to identify relevant resources, barriers to lifestyle modification, health behavior change, and implementation of weight management strategies into care. Patients and providers prioritized increasing physical activity and healthy diets when managing chronic disease; and reported decreased patient motivation, knowledge, and limited organizational capacity and time among providers to deliver intensive interventions...
July 2017: Family & Community Health
https://www.readbyqxmd.com/read/28524930/nutrition-support-in-hospitalised-adults-at-nutritional-risk
#15
REVIEW
Joshua Feinberg, Emil Eik Nielsen, Steven Kwasi Korang, Kirstine Halberg Engell, Marie Skøtt Nielsen, Kang Zhang, Maria Didriksen, Lisbeth Lund, Niklas Lindahl, Sara Hallum, Ning Liang, Wenjing Xiong, Xuemei Yang, Pernille Brunsgaard, Alexandre Garioud, Sanam Safi, Jane Lindschou, Jens Kondrup, Christian Gluud, Janus C Jakobsen
BACKGROUND: The prevalence of disease-related malnutrition in Western European hospitals is estimated to be about 30%. There is no consensus whether poor nutritional status causes poorer clinical outcome or if it is merely associated with it. The intention with all forms of nutrition support is to increase uptake of essential nutrients and improve clinical outcome. Previous reviews have shown conflicting results with regard to the effects of nutrition support. OBJECTIVES: To assess the benefits and harms of nutrition support versus no intervention, treatment as usual, or placebo in hospitalised adults at nutritional risk...
May 19, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28523352/interim-heterogeneity-changes-measured-using-entropy-texture-features-on-t2-weighted-mri-at-3-0%C3%A2-t-are-associated-with-pathological-response-to-neoadjuvant-chemotherapy-in-primary-breast-cancer
#16
Shelley Henderson, Colin Purdie, Caroline Michie, Andrew Evans, Richard Lerski, Marilyn Johnston, Sarah Vinnicombe, Alastair M Thompson
OBJECTIVES: To investigate whether interim changes in hetereogeneity (measured using entropy features) on MRI were associated with pathological residual cancer burden (RCB) at final surgery in patients receiving neoadjuvant chemotherapy (NAC) for primary breast cancer. METHODS: This was a retrospective study of 88 consenting women (age: 30-79 years). Scanning was performed on a 3.0 T MRI scanner prior to NAC (baseline) and after 2-3 cycles of treatment (interim)...
May 18, 2017: European Radiology
https://www.readbyqxmd.com/read/28523180/primary-atypical-carcinoid-tumor-of-the-mediastinum-a-very-rare-finding
#17
Luigi Ventura, Letizia Gnetti, Enrico Maria Silini, Guido Rindi, Paolo Carbognani, Michele Rusca, Luca Ampollini
Primary neuroendocrine tumors (NETs) of the mediastinum are very rare. Prognosis is usually poor despite treatment options. We present the case of a primary atypical carcinoid tumor of the mediastinum successfully treated by multimodal approach. A 50-year-old man presented for asthenia, dyspnea, and substernal sense of weight for two weeks. A chest-CT scan revealed a tumor mass of 107×55×95 mm(3) localized in the anterosuperior mediastinum compressing both brachiocephalic veins, the superior vena cava, the pericardium, and lungs...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522764/obesity-induced-discrepancy-between-contractile-and-metabolic-phenotypes-in-slow-and-fast-twitch-skeletal-muscles-of-female-obese-zucker-rats
#18
Luz M Acevedo, Ana I Raya, Rafael Ríos, Escolástico Aguilera-Tejero, Jose-Luis L Rivero
A clear picture of skeletal muscle adaptations to obesity and related comorbidities remains elusive. This study describes fiber-type characteristics (size, proportions, and oxidative enzyme activity) in two typical hind limb muscles with opposite structure and function in an animal model of genetic obesity. Lesser fiber diameter, fiber type composition, and histochemical succinic dehydrogenase activity (an oxidative marker) of muscle fiber types were assessed in slow- (soleus) and fast-twitch (tibialis cranialis) muscles of obese Zucker rats, and compared with age- (16 weeks) and sex-matched (females) lean Zucker rats (N=16/group)...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28522675/effects-of-sodium-glucose-cotransporter-2-inhibitors-on-24-hour-ambulatory-blood-pressure-a-systematic-review-and-meta-analysis
#19
REVIEW
William L Baker, Leo F Buckley, Michael S Kelly, John D Bucheit, Eric D Parod, Roy Brown, Salvatore Carbone, Antonio Abbate, Dave L Dixon
BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors are a novel class of antihyperglycemic agents that improve glycemic control by increasing glycosuria. Additional benefits beyond glucose lowering include significant improvements in seated clinic blood pressure (BP), partly attributed to their diuretic-like actions. Less known are the effects of this class on 24-hour ambulatory BP, which is a better predictor of cardiovascular risk than seated clinic BP. METHODS AND RESULTS: We performed a meta-analysis of randomized, double-blind, placebo-controlled trials to investigate the effects of SGLT2 inhibitors on 24-hour ambulatory BP...
May 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28522658/effect-of-fontan-geometry-on-exercise-haemodynamics-and-its-potential-implications
#20
Elaine Tang, Zhenglun Alan Wei, Kevin K Whitehead, Reza H Khiabani, Maria Restrepo, Lucia Mirabella, James Bethel, Stephen M Paridon, Bradley S Marino, Mark A Fogel, Ajit P Yoganathan
OBJECTIVE: Exercise intolerance afflicts Fontan patients with total cavopulmonary connections (TCPCs) causing a reduction in quality of life. Optimising TCPC design is hypothesised to have a beneficial effect on exercise capacity. This study investigates relationships between TCPC geometries and exercise haemodynamics and performance. METHODS: This study included 47 patients who completed metabolic exercise stress test with cardiac magnetic resonance (CMR). Phase-contrast CMR images were acquired immediately following supine lower limb exercise...
May 18, 2017: Heart: Official Journal of the British Cardiac Society
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