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https://www.readbyqxmd.com/read/29786968/p62-mediated-autophagy-affects-nutrition-dependent-insulin-receptor-substrate-1-dynamics-in-3t3-l1-preadipocytes
#1
Hirobumi Igawa, Akihiro Kikuchi, Hirofumi Misu, Kiyo-Aki Ishii, Shuichi Kaneko, Toshinari Takamura
AIMS/INTRODUCTION: Previous studies have shown that the organism's nutritional status changes the protein levels of insulin receptor substrate 1 (IRS-1) in a tissue-specific manner. Although the mechanisms underlying the regulation of IRS-1 in the nutrient-rich conditions associated with diabetes and insulin resistance have been well studied, those under nutrient-poor conditions remain unknown. The aim of this study was to investigate how IRS-1 protein levels change depending on the nutritional status of 3T3-L1 preadipocytes...
May 22, 2018: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29786939/an-update-on-enzymatic-cocktails-for-lignocellulose-breakdown
#2
REVIEW
Andreza de Mello Lopes, Edivaldo Ximenes Ferreira Filho, Leonora Rios de Souza Moreira
Alternative energy sources have received increasing attention in recent years. The possibility of adding value to agricultural wastes, by producing biofuels and other products with economic value from lignocellulosic biomass by enzymatic hydrolysis, has been widely explored. Lignocellulosic biomass, as well as being an abundant residue, is a complex recalcitrant structure that requires a consortium of enzymes for its complete degradation. Pools of enzymes with different specificities acting together usually produce an increase in hydrolysis yield...
May 22, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29786859/synergistic-effects-of-abiotic-stresses-in-plants-a-case-study-of-nitrogen-limitation-and-saturating-light-intensity-in-arabidopsis-thaliana
#3
Itay Cohen, Tal Rapaport, Vered Chalifa-Caspi, Shimon Rachmilevitch
Under natural conditions, plants are regularly exposed to combinations of stress factors. A common example is the conjunction between nitrogen (N) deficiency and excess light. The combined effect of stress factors is often ignored in studies using controlled conditions, possibly resulting in misleading conclusions. To address this issue, the current study examined the physiological behavior of Arabidopsis thaliana under the effect of varying nitrogen levels and light intensities. The joint influence of low N and excess light had an adverse effect on plant growth, chlorophyll and anthocyanin concentrations, photochemical capacity, and the abundance of proteins involved in carbon assimilation and anti-oxidative metabolism...
May 22, 2018: Physiologia Plantarum
https://www.readbyqxmd.com/read/29786802/-treatment-with-neurostimulation-and-ketogenic-diet-for-people-with-medically-refractory-epilepsy
#4
Eva Kumlien, Tove Hallbook, Maria Dahlin
For some people with medically refractory epilepsy adjunct treatment with neurostimulation and ketogenic diet can be an option. Vagal nerve stimulation, VNS, consists of chronic intermittent electrical stimulation of the vagus nerve. VNS is effective and well tolerated in adolescents and adults. There is insufficient evidence on the efficacy of deep brain stimulation, DBS, and brain-responsive neurostimulation, RNS. Ketogenic diet is an established treatment in epilepsy with an increased number of indications, especially in neurometabolic diseases, where dietary therapy can completely eliminate epilepsy and improve cognitive and motor development...
May 22, 2018: Läkartidningen
https://www.readbyqxmd.com/read/29786650/a-review-of-tunable-wavelength-selectivity-of-metamaterials-in-near-field-and-far-field-radiative-thermal-transport
#5
Yanpei Tian, Alok Ghanekar, Matt Ricci, Mikhail Hyde, Otto Gregory, Yi Zheng
Radiative thermal transport of metamaterials has begun to play a significant role in thermal science and has great engineering applications. When the key features of structures become comparable to the thermal wavelength at a particular temperature, a narrowband or wideband of wavelengths can be created or shifted in both the emission and reflection spectrum of nanoscale metamaterials. Due to the near-field effect, the phenomena of radiative wavelength selectivity become significant. These effects show strong promise for applications in thermophotovoltaic energy harvesting, nanoscale biosensing, and increased energy efficiency through radiative cooling in the near future...
May 22, 2018: Materials
https://www.readbyqxmd.com/read/29786601/heterogeneous-photocatalysis-and-its-potential-applications-in-water-and-wastewater-treatment-a-review
#6
Syed N Ahmed, Waseem Haider
There has been a considerable amount of research in the development of sustainable water treatment techniques capable of improving the quality of water. Unavailability of drinkable water is a crucial issue especially in regions where conventional drinking water treatment systems fail to eradicate aquatic pathogens, toxic metal ions and industrial waste. The research and development in this area have given rise to a new class of processes called Advanced Oxidation Processes, particularly in the form of heterogeneous photocatalysis, which converts photon energy into chemical energy...
May 22, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29786416/zinc-oxide-enhanced-piezoelectret-polypropylene-microfiber-for-mechanical-energy-harvesting
#7
Jianxiong Zhu, Yali Zhu, Weixing Song, Hui Wang, Min Gao, Minkyu Cho, Inkyu Park
This paper reports zinc oxide (ZnO) coated piezoelectret polypropylene (PP) microfibers with a structure of two opposite arc-shaped braces for enhanced mechanical energy harvesting. The ZnO film was coated onto PP microfibers via magnetron sputtering to form a ZnO/PP compound structure. Triboelectric Nanogenerator (TENG) based on ZnO/PP microfiber compound film was carefully designed with two opposite arc-shaped braces. The results of this study demonstrated that the mechanical energy collection efficiency of TENG based on piezoelectret PP microfiber was greatly enhanced by the coated ZnO and high voltage corona charging method...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29785905/hepatic-sirt3-expression-declines-postpartum-in-dairy-goats
#8
Lei Liu, Li Yao, Tao Peng, Lixin Wen, Wenjie Cai, Xinglin Jia, Jianhua He
The experiments reported in this research communication aimed to plot the expression pattern of Sirt3, a master regulator of energy metabolism and antioxidation defence, in the liver of dairy goats during perinatal period. Ten healthy dairy goats in late pregnancy were chosen, and needle biopsy was applied to collect liver samples at 1-week intervals. Protein levels of hepatic Sirt3 were analysed by western-blotting. Serum enzyme activities of manganese superoxide dismutase (Mn-SOD) and non-esterified fatty acids (NEFA) levels were measured, and their correlation with Sirt3 mRNA levels was also estimated...
May 2018: Journal of Dairy Research
https://www.readbyqxmd.com/read/29785891/performance-and-carcass-characteristics-of-steers-fed-with-two-levels-of-metabolizable-energy-intake-during-summer-and-winter-season
#9
R A Arias, J P Keim, M Gandarillas, A Velásquez, C Alvarado-Gilis, T L Mader
Climate change is producing an increase on extreme weather events around the world such as flooding, drought and extreme ambient temperatures impacting animal production and animal welfare. At present, there is a lack of studies addressing the effects of climatic conditions associated with energy intake in finishing cattle in South American feed yards. Therefore, two experiments were conducted to assess the effects of environmental variables and level of metabolizable energy intake above maintenance requirements (MEI) on performance and carcass quality of steers...
May 22, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29785871/strategies-to-improve-impact-efficiency-in-football-kicking
#10
James C A Peacock, Kevin Ball
In football, kicking with high ball velocity can increase scoring opportunities and reduce the likelihood of interception. Efficient energy transfer from foot to ball during impact is important to attain a high ball velocity. It is considered impact efficiency can be increased by reducing the change in ankle plantarflexion during foot-ball impact. However, conflicting evidence exists, questioning its effectiveness as a coaching cue. The aim of the present study was to systematically analyse joint stiffness, foot velocity and impact location with a mechanical kicking machine to determine if change in ankle plantarflexion during foot-ball impact and ball velocity are influenced...
May 22, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29785853/engineering-of-porphyrin-molecules-for-use-as-effective-cathode-interfacial-modifiers-in-organic-solar-cells-of-enhanced-efficiency-and-stability
#11
Marinos Tountas, Apostolis Verykios, Ermioni Polydorou, Andreas Kaltzoglou, Anastasia Soultati, Nikolaos Balis, Panagiotis A Angaridis, Michael Papadakis, Vasilis Nikolaou, Florian Auras, Leonidas C Palilis, Dimitris Tsikritzis, Evangelos Evangelou, Spyros Gardelis, Matroni Koutsoureli, George Papaioannou, Ioannis D Petsalakis, Stella Kennou, Dimitris Davazoglou, Panagiotis Argitis, Polycarpos Falaras, Athanassios G Coutsolelos, Maria Vasilopoulou
In the present work, we effectively modify the TiO2 electron transport layer of organic solar cells with an inverted architecture by using appropriately engineered porphyrin molecules. The results show that the optimized porphyrin modifier bearing two carboxylic acids as the anchoring groups and a triazine electron-withdrawing spacer significantly reduces the work function of TiO2 thereby reducing the electron extraction barrier. Moreover, the lower surface energy of the porphyrin-modified substrate results in better physical compatibility between the latter and the photoactive blend...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29785759/effect-of-2-94-%C3%A2%C2%B5m-er-yag-laser-on-the-chemical-composition-of-hard-tissues
#12
Abtesam Aljdaimi, Hugh Devlin, Mark Dickinson, Abdullatif Alfutimie
The aim was to investigate the effect of the Er-YAG laser radiation on morphology and chemical composition of enamel, dentin, and bone. The specimens of the three groups were irradiated with a very long pulse mode (VLP) of 2.94 µm Er-YAG laser with 100 mJ pulse energy and energy density of 8.42 J/ cm2 for 30 s, at a repetition rate of 15 Hz. The organic and inorganic content of the samples were investigated by Fourier Transforms Infrared spectroscopy (FTIR). The morphological characteristics were investigated with scanning electron microscopy (SEM) and elemental analysis (calcium and phosphorus) with energy-dispersive X-ray spectroscopy (EDX)...
May 21, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29785696/case-matched-comparison-of-long-term-functional-and-quality-of-life-outcomes-following-laparoscopic-versus-open-ileal-pouch-anal-anastomosis
#13
Olga A Lavryk, Luca Stocchi, Jean H Ashburn, Meagan Costedio, Emre Gorgun, Tracy L Hull, Hermann Kessler, Conor P Delaney
BACKGROUND: Laparoscopic ileal pouch-anal anastomosis (IPAA) is associated with recovery benefits when compared with open IPAA. There is limited data on long-term quality of life and functional outcomes, which this study aimed to assess. METHODS: An IRB-approved, prospectively maintained database was queried to identify patients undergoing laparoscopic IPAA (L), case-matched with open IPAA (O) based on age ± 5 years, gender, body mass index (BMI) ± 5 kg/m2 , diagnosis, date of surgery ± 3 years, stapled/handsewn anastomosis, omission of diverting loop ileostomy and length of follow-up ± 3 years...
May 21, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29785612/water-forests-people-the-swedish-experience-in-building-resilient-landscapes
#14
Mats Eriksson, Lotta Samuelson, Linnéa Jägrud, Eskil Mattsson, Thorsten Celander, Anders Malmer, Klas Bengtsson, Olof Johansson, Nicolai Schaaf, Ola Svending, Anna Tengberg
A growing world population and rapid expansion of cities increase the pressure on basic resources such as water, food and energy. To safeguard the provision of these resources, restoration and sustainable management of landscapes is pivotal, including sustainable forest and water management. Sustainable forest management includes forest conservation, restoration, forestry and agroforestry practices. Interlinkages between forests and water are fundamental to moderate water budgets, stabilize runoff, reduce erosion and improve biodiversity and water quality...
May 21, 2018: Environmental Management
https://www.readbyqxmd.com/read/29785423/targeted-replacement-systematic-studies-of-dodecanuclear-mln-coordination-clusters-m-cr-co-ln-dy-y
#15
Sihuai Chen, Valeriu Mereacre, Zhiying Zhao, Wanwan Zhang, Mengsi Zhang, Zhangzhen He
Three dodecanuclear 3d-4f coordination clusters, [CrIII6LnIII6(μ3-OH)8(tbdea)6(C6H5COO)16]·2H2O (Ln = Dy (1), Y (2)) and [CoIII6DyIII6(μ3-OH)8(nbdea)6(m-CH3C6H4COO)16]·2H2O·2CH3CN (3), have been synthesized under solvothermal conditions and characterized. Single-crystal X-ray diffraction analysis revealed that all three compounds possess an analogous {MIII6LnIII6} core (M = Cr, Co; Ln = Dy, Y) and dc magnetic susceptibility studies indicated that the magnetic exchange couplings between DyIII ions are dominant antiferromagnetic, while the CrIII-DyIII interactions are weakly ferromagnetic...
May 22, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29785395/the-relationship-between-nafld-and-sarcopenia-in-elderly-patients
#16
Yu Zhai, Qian Xiao, Jing Miao
Aim: Previous studies have shown that individuals with low muscle mass exhibit an increased risk of nonalcoholic fatty liver disease (NAFLD). In this study, we investigated the association between NAFLD and sarcopenia in elderly patients. Methods: We classified the participants into sarcopenia/nonsarcopenia groups based on dual-energy X-ray absorptiometry (DXA), muscle strength (grip strength), or/and physical performance (6 m usual gait speed). We diagnosed NAFLD by ultrasonography combined with the history of alcohol intake...
2018: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29785025/an-immune-beige-adipocyte-communication-via-nicotinic-acetylcholine-receptor-signaling
#17
Heejin Jun, Hui Yu, Jianke Gong, Juan Jiang, Xiaona Qiao, Eric Perkey, Dong-Il Kim, Margo P Emont, Alexander G Zestos, Jung-Sun Cho, Jianfeng Liu, Robert T Kennedy, Ivan Maillard, X Z Shawn Xu, Jun Wu
Beige adipocytes have recently been shown to regulate energy dissipation when activated and help organisms defend against hypothermia and obesity. Prior reports indicate that beige-like adipocytes exist in adult humans and that they may present novel opportunities to curb the global epidemic in obesity and metabolic illnesses. In an effort to identify unique features of activated beige adipocytes, we found that expression of the cholinergic receptor nicotinic alpha 2 subunit (Chrna2) was induced in subcutaneous fat during the activation of these cells and that acetylcholine-producing immune cells within this tissue regulated this signaling pathway via paracrine mechanisms...
May 21, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29784965/broadband-electrically-tunable-third-harmonic-generation-in-graphene
#18
Giancarlo Soavi, Gang Wang, Habib Rostami, David G Purdie, Domenico De Fazio, Teng Ma, Birong Luo, Junjia Wang, Anna K Ott, Duhee Yoon, Sean A Bourelle, Jakob E Muench, Ilya Goykhman, Stefano Dal Conte, Michele Celebrano, Andrea Tomadin, Marco Polini, Giulio Cerullo, Andrea C Ferrari
Optical harmonic generation occurs when high intensity light (>1010  W m- 2 ) interacts with a nonlinear material. Electrical control of the nonlinear optical response enables applications such as gate-tunable switches and frequency converters. Graphene displays exceptionally strong light-matter interaction and electrically and broadband tunable third-order nonlinear susceptibility. Here, we show that the third-harmonic generation efficiency in graphene can be increased by almost two orders of magnitude by controlling the Fermi energy and the incident photon energy...
May 21, 2018: Nature Nanotechnology
https://www.readbyqxmd.com/read/29784793/camp-inducible-coactivator-crtc3-attenuates-brown-adipose-tissue-thermogenesis
#19
Young-Sil Yoon, Wen-Wei Tsai, Sam Van de Velde, Zhijiang Chen, Kuo-Fen Lee, Donald A Morgan, Kamal Rahmouni, Shigenobu Matsumura, Ezra Wiater, Youngsup Song, Marc Montminy
In response to cold exposure, placental mammals maintain body temperature by increasing sympathetic nerve activity in brown adipose tissue (BAT). Triggering of β-adrenergic receptors on brown adipocytes stimulates thermogenesis via induction of the cAMP/PKA pathway. Although cAMP response element-binding protein (CREB) and its coactivators-the cAMP-regulated transcriptional coactivators (CRTCs)-mediate transcriptional effects of cAMP in most tissues, other transcription factors such as ATF2 appear critical for induction of thermogenic genes by cAMP in BAT...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29784403/enzymatic-amplification-of-oligonucleotides-in-paper-substrates
#20
Abootaleb Sedighi, Ulrich J Krull
Several solution-based methods have recently been adapted for use in paper substrates for enzymatic amplification to increase the number of copies of DNA sequences. There is limited information available about the impact of a paper matrix on DNA amplification by enzymatic processes, and about how to optimize conditions to maximize yields. The work reported herein provides insights about the impact of physicochemical properties of a paper matrix, using nuclease-assisted amplification by exonuclease III and nicking endonuclease Nt...
August 15, 2018: Talanta
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