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https://www.readbyqxmd.com/read/28340520/galangin-inhibits-human-osteosarcoma-cells-growth-by-inducing-transforming-growth-factor-%C3%AE-1-dependent-osteogenic-differentiation
#1
Chunhong Liu, Mingming Ma, Junde Zhang, Shaoliu Gui, Xiaohai Zhang, Shuangtao Xue
Osteosarcoma is the most common primary malignancy of the musculoskeletal system, and is associated with excessive proliferation and poor differentiation of osteoblasts. Currently, despite the use of traditional chemotherapy and radiotherapy, no satisfactory and effective agent has been developed to treat the disease. Herein, we found that a flavonoid natural product, galangin, could significantly attenuate human osteosarcoma cells proliferation, without causing obvious cell apoptosis. Moreover, galangin enhanced the expression of osteoblast differentiation markers (collagen type I, alkaline phosphatase, osteocalcin and osteopontin) remarkably and elevated the alkaline phosphatase activity in human osteosarcoma cells...
March 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28340459/transcriptional-profiling-of-porcine-granulosa-cells-exposed-to-2-3-7-8-tetrachlorodibenzo-p-dioxin
#2
Agnieszka Sadowska, Anna Nynca, Monika Ruszkowska, Lukasz Paukszto, Kamil Myszczynski, Karina Orlowska, Sylwia Swigonska, Tomasz Molcan, Jan P Jastrzebski, Renata E Ciereszko
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a toxic man-made chemical compound contaminating the environment. An exposure of living organisms to TCDD may result in numerous disorders, including reproductive pathologies. The aim of the current study was to examine the effects of TCDD on the transcriptome of porcine granulosa cell line AVG-16. By employing next-generation sequencing (NGS) we aimed to identify genes potentially involved in the mechanism of TCDD action and toxicity in porcine granulosa cells...
March 16, 2017: Chemosphere
https://www.readbyqxmd.com/read/28340433/feasibility-of-carbon-dioxide-sequestration-by-spongiochloris-sp-microalgae-during-petroleum-wastewater-treatment-in-airlift-bioreactor
#3
Abdeldjalil Abid, Faten Saidane, Moktar Hamdi
The aim of this work was to study the ability of using Hydrocabonoclastic native microbial and Spongiochloris sp microalgae in airlift bioreactors couples in order to restore hydrocarbons wastewater and develop the capacity of natural systems to reduce greenhouse effect through maximal control of CO2 gas emission in atmosphere. The kinetic parameters of CO2 gas fixation level and conversion it into biological material by microalgae as the biodegradation process effect in hydrocarbon have been evaluated. The result present that maximum specific growth rate μmax of Spongiochloris sp was (0...
March 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28340378/current-fda-approved-treatments-for-non-small-cell-lung-cancer-and-potential-biomarkers-for-its-detection
#4
REVIEW
Karla A Ruiz-Ceja, Yolanda I Chirino
BACKGROUND: Lung cancer is the leading worldwide cancer with almost 1.5 million deaths every year. Some drugs for lung cancer treatment have been available on the market for decades, but novel drugs have emerged promising better outcomes, especially for Non-Small Cell Lung Cancer (NSCLC), which represents 75% of lung cancer cases. However, how much do drugs have evolved for NSCLC treatment? Are they sharing the same mechanism of action? AIM: In this review we analyzed how the approved drugs by Federal Drug Agency for NSCLC have advanced in the last four decades identifying shared mechanism of action of medicines against NSCLC treatment and some of the potential biomarkers for early detection...
March 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28340328/the-role-of-auxin-response-factors-in-the-development-and-differential-growth-of-inflorescence-stems
#5
Nicholas S Carey, Naden T Krogan
Plants react to environmental cues by altering their growth and development, which can include organ tropic responses. These differential growth responses are triggered by the hormone auxin, and AUXIN RESPONSE FACTORs (ARFs) have been implicated in numerous organ tropisms in Arabidopsis thaliana. Surprisingly, despite being critical for light capture and overall plant morphology, inflorescence stem tropic responses remain relatively understudied, with presumed direct links to ARF function yet to be established...
March 24, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28340327/polymorphic-responses-of-medicago-truncatula-accessions-to-potassium-deprivation
#6
Kevin Garcia, Jean-Michel Ané
Potassium (K(+)) is an essential macronutrient for plants and the most abundant cation in cells. Due to variable K(+) availability in the environment, plants must be able to adjust their developmental, physiological and transcriptional responses. The plant development to K(+) deprivation was not well studied in legumes thus far. We recently described the first adaptation mechanisms of the model legume Medicago truncatula Jemalong A17 to long-term K(+) deprivation and analyzed these responses in the context of arbuscular mycorrhizal symbiosis...
March 24, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28340173/f-box-protein-fbx92-affects-leaf-size-in-arabidopsis-thaliana
#7
Joke Baute, Stefanie Polyn, Jolien De Block, Jonas Blomme, Mieke Van Lijsebettens, Dirk Inzé
F-box proteins are part of one of the largest families of regulatory proteins that play important roles in protein degradation. In plants, F-box proteins are functionally very diverse, and only a small subset has been characterized in detail. Here, we identified a novel F-box protein FBX92 as a repressor of leaf growth in Arabidopsis. Overexpression of AtFBX92 resulted in plants with smaller leaves than wild type, whereas plants with reduced levels of AtFBX92 showed in contrast increased leaf growth by stimulating cell proliferation...
March 14, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28340040/impaired-ability-to-grow-colonies-of-endothelial-stem-cells-could-be-the-mechanism-explaining-the-high-cardiovascular-morbidity-mortality-of-patients-with-depression
#8
Blum Arnon, Pastukh Nina, Zaroura Imad, Jonathan Rotem, Farhat Kamal
Background: Subjects with depression are more prone to develop cardiovascular complications. Severity of depression is associated with higher rates of cardiovascular mortality and morbidity. Several mechanisms were suggested including accelerated atherosclerosis, alteration of the cardiac autonomic response with a decrease in heart rate variability. There is evidence that circulating endothelial progenitor cells (EPCs) are decreased in patients with major depression. Our hypothesis was that patients with depression would have an impaired ability to build colonies of endothelial progenitor cells...
March 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28339967/placental-transporter-localization-and-expression-in-the-human-the-importance-of-species-sex-and-gestational-age-differences1
#9
Natasha Walker, Panagiotis Filis, Ugo Soffientini, Michelle Bellingham, Peter J O'Shaughnessy, Paul A Fowler
The placenta is a critical organ during pregnancy, essential for the provision of an optimal intrauterine environment, with fetal survival, growth and development relying on correct placental function. It must allow nutritional compounds and relevant hormones to pass into the fetal bloodstream and metabolic waste products to be cleared. It also acts as a semi-permeable barrier to potentially harmful chemicals both endogenous and exogenous. Transporter proteins allow for bidirectional transport and are found in the syncytiotrophoblast of the placenta and endothelium of fetal capillaries...
March 7, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339908/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-pathological-adaption-of-cardiac-hypertrophy1-2
#10
C Y Chen, H Y Lin, Y W Chen, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Broiler hens consuming feed to appetite (ad libitum; AL) show increased mortality. Feed restriction (R) typically improves reproductive performance and livability of hens. Rapidly growing broilers can exhibit increased mortality due to cardiac insufficiency but it is unknown whether the increased mortality of non-R broiler hens is also due to cardiac compromise. To assess cardiac growth and physiology in fully mature birds, 45-week-old hens were either continued on R rations or assigned to AL feeding for 7 or 21 days...
March 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339780/adverse-kidney-effects-of-epidermal-growth-factor-receptor-inhibitors
#11
Hassan Izzedine, Mark A Perazella
The epidermal growth factor receptor (EGFR) is implicated in various malignancies. The past decade has seen the development and widespread use of EGFR inhibitors for the successful treatment of such cancers. Available EGFR inhibitors include small molecule tyrosine-kinase inhibitors and monoclonal antibodies. Class-related renal adverse events result in dual toxicity including tubular/electrolyte disorders and glomerulopathies. Tubular injury is common and mainly due to monoclonal antibodies while glomerulopathy is rare and related to various anti-EGFR agents...
February 23, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339753/in-ovo-monochromatic-green-light-photostimulation-enhances-embryonic-somatotropic-axis-activity
#12
L Dishon, N Avital-Cohen, D Malamud, R Heiblum, S Druyan, T E Porter, M Gumulka, I Rozenboim
Previous studies demonstrated that in ovo photostimulation with monochromatic green light increases body weight and accelerates muscle development in broilers. The mechanism in which in ovo photostimulation accelerates growth and muscle development is not clearly understood. The objective of the current study was to define development of the somatotropic axis in the broiler embryo associated with in ovo green light photostimulation. Two-hundred-forty fertile broiler eggs were divided into 2 groups. The first group was incubated under intermittent monochromatic green light using light-emitting diode (LED) lamps with an intensity of 0...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339733/a-two-phase-mixture-model-of-platelet-aggregation
#13
Jian Du, Aaron L Fogelson
We present a two-phase model of platelet aggregation in coronary-artery-sized blood vessels. The model tracks the number densities of three platelet populations as well as the concentration of a platelet activating chemical. Through the formation of elastic bonds, activated platelets can cohere with one another to form a platelet thrombus. Bound platelets in a thrombus move in a velocity field different from that of the bulk fluid. Stresses produced by the elastic bonds act on the bound platelet material. Movement of the bound platelet material and that of the background fluid are coupled through an interphase drag and an incompressibility constraint...
February 20, 2017: Mathematical Medicine and Biology: a Journal of the IMA
https://www.readbyqxmd.com/read/28339699/effects-of-chlorine-and-hydrogen-peroxide-sanitation-in-low-bacterial-content-water-on-biofilm-formation-model-of-poultry-brooding-house-waterlines
#14
P Maharjan, G Huff, W Zhang, S Watkins
An in vitro experiment was performed to determine if biofilm would develop when polyvinylchloride (PVC) test coupons (material used for poultry waterlines) were exposed to low bacterial content warm water (≤1000 cfu/mL, test water) and also to determine if biofilm development would be influenced by adding a sanitizer. PVC sections 2.54 cm long and internal diameter of 1. 90 cm were used as test coupons to grow biofilm. Two coupons were immersed in 600 mL test water in a beaker. Nine beakers were utilized similarly with a total of 18 coupons...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339607/gross-motor-trajectories-during-the-first-year-of-life-for-preterm-infants-with-very-low-birth-weight
#15
Yu-Han Su, Suh-Fang Jeng, Wu-Shiun Hsieh, Yu-Kang Tu, Yen-Tzu Wu, Li-Chiou Chen
Background.: Early identification of motor dysfunction in very-low-birth-weight (VLBW) preterm infants is important in order to provide early intervention. Objective.: This study was to examine the motor trajectories of VLBW preterm infants during their first year of life and to investigate the predictive ability and influencing factors of the trajectories. Design and Methods.: A total of 342 VLBW preterm infants were prospectively assessed for motor development by the Alberta Infant Motor Scales at 4, 6, 9 and 12 months and for developmental outcomes using the Bayley Scales of Infant and Toddler Development- second edition at 24 months...
February 4, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28339550/the-tension-sensitive-ion-transport-activity-of-msl8-is-critical-for-its-function-in-pollen-hydration-and-germination
#16
Eric S Hamilton, Elizabeth S Haswell
All cells respond to osmotic challenges, including those imposed during normal growth and development. Mechanosensitive (MS) ion channels provide a conserved mechanism for regulating osmotic forces by conducting ions in response to increased membrane tension. We previously demonstrated that the MS ion channel MscS-Like 8 (MSL8) is required for pollen to survive multiple osmotic challenges that occur during the normal process of fertilization, and that it can inhibit pollen germination. However, it remained unclear whether these physiological functions required ion flux through a mechanically gated channel provided by MSL8...
January 10, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339537/stimulatory-effects-of-fibroblast-growth-factor-2-on-proliferation-and-migration-of-uterine-luminal-epithelial-cells-during-early-pregnancy%C3%A2-%C3%A2
#17
Whasun Lim, Hyocheol Bae, Fuller W Bazer, Gwonhwa Song
Fibroblast growth factor 2 (FGF2) is a mitogen that induces proliferation, differentiation, and migration of cells, as well as angiogenesis and carcinogenesis via autocrine or paracrine actions. Fibroblast growth factor 2 expression is abundant in porcine conceptuses and endometrium during the estrous cycle and peri-implantation period of pregnancy. However, its intracellular actions in uterine epithelial cells have not been reported. The results of this study indicated abundant expression of FGFR1 and FGFR2 predominantly in uterine luminal and glandular epithelia during early pregnancy and that their expression decreased with increasing parity of the sows...
December 20, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28339296/synthetic-parasites-a-successful-mucosal-nanoparticle-vaccine-against-toxoplasma-congenital-infection-in-mice
#18
Céline Ducournau, Thi Tl Nguyen, Rodolphe Carpentier, Isabelle Lantier, Stéphanie Germon, Flavien Précausta, Pierre-Jean Pisella, Hervé Leroux, Nathalie Van Langendonck, Didier Betbeder, Isabelle Dimier-Poisson
AIM: Development of protein vaccine to prevent congenital infection is a major public health priority. Our goal is the design of mucosal synthetic pathogen inducing protective immune responses against congenital toxoplasmosis. MATERIALS & METHODS: Mice were immunized intranasally, establishing pregnancy and challenging orally. Placental immune response, congenital infection, pup growth, parasitic load rates were studied. RESULTS: Pups born to vaccinated infected dams had significantly fewer brain cysts, no intraocular inflammation and normal growth...
March 24, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28339142/selective-effects-of-oral-anti-angiogenic-tyrosine-kinase-inhibitors-on-an-animal-model-of-hereditary-hemorrhagic-telangiectasia
#19
Yong Hwan Kim, Mi-Jung Kim, Se-Woon Choe, Dennis Sprecher, Young Jae Lee, S Paul Oh
BACKGROUND: Epistaxis and gastrointestinal (GI) tract hemorrhages are common symptoms of aged hereditary hemorrhagic telangiectasia (HHT) patients that result in anemia. Clinical as well as animal studies have suggested that vascular endothelial growth factor (VEGF) neutralizing antibodies lessen hemorrhage associated with adult onset arteriovenous malformations (AVMs). OBJECTIVES: The goal of this study is to evaluate potential therapeutic effects of oral delivery of four anti-angiogenic tyrosine-kinase inhibitors (TKIs) in the development of adult onset AVMs in a murine model of HHT...
March 24, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28339071/direct-interaction-between-caffeic-acid-phenethyl-ester-and-human-neutrophil-elastase-inhibits-the-growth-and-migration-of-panc-1-cells
#20
Jianhui Duan, Yilixiati Xiaokaiti, Shengjun Fan, Yan Pan, Xin Li, Xuejun Li
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignant tumors of the digestive system, but the mechanisms of its development and progression are unclear. Inflammation is thought to be fundamental to pancreatic cancer development and caffeic acid phenethyl ester (CAPE) is an active component of honey bee resin or propolis with anti-inflammatory and anticancer activities. We investigated the inhibitory effects of CAPE on cell growth and migration induced by human neutrophil elastase (HNE) and report that HNE induced cancer cell migration at low doses and growth at higher doses...
March 21, 2017: Oncology Reports
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