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https://www.readbyqxmd.com/read/28231703/effects-of-water-addition-to-total-mixed-ration-on-water-intake-nutrient-digestibility-wool-cortisol-and-blood-indices-in-corriedale-ewes
#1
Jalil Ghassemi Nejad, Byong-Wan Kim, Bae-Hun Lee, Kyung Il Sung, Ji-Yung Kim
Objective: The objective of this study was to determine the effect of adding water to total mixed ration (TMR) on fresh water intake, nutrient digestibility, wool cortisol, and blood indices in Corriedale ewes under hot and humid conditions. Methods: Nine non-pregnant Corriedale ewes (ave. BW = 41 ± 3.5 kg) were individually fed diets based on maintenance requirements in metabolic crates. Ewes were assigned to three treatment groups according to a triplicate 3×3 Latin Square design for 3 periods of 21 days duration each (9 ewes per treatment, 27 replications)...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231698/effect-of-feeding-of-blend-of-essential-oils-on-methane-production-growth-nutrient-utilization-in-growing-buffaloes
#2
M A Yatoo, L C Chaudhary, Neeta Agarwal, V B Chaturvedi, D N Kamra
Objective: An experiment was conducted to study the effect of a blend of essential oils (BEO) on enteric methane emission and growth performance of buffaloes (Bubalus bubalis). Methods: Twenty one growing male buffaloes (average body weight of 279 ± 9.3 kg) were divided in to three groups. The animals of all the three groups were fed on a ration consisting of wheat straw and concentrate mixture targeting 500g daily live weight gain. The three dietary groups were; Group1: control without additive, Group 2 and 3: supplemented with BEO @ 0...
February 23, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28231636/personalized-thromboprophylaxis-using-a-risk-score-for-the-management-of-pregnancies-with-high-risk-of-thrombosis-a-prospective-clinical-study
#3
Y Dargaud, L Rugeri, C Fleury, C Battie, P Gaucherand, C Huissoud, R C Rudigoz, H Desmurs-Clavel, J Ninet, M C Trzeciak
BACKGROUND: Patients with thrombophilia and/or a history of venous thromboembolism (VTE) are at risk of thrombosis during pregnancy. A risk score for pregnancies with increased risk of VTE was previously described by our group (Lyon-VTE-score). OBJECTIVES: The aim of this prospective study was to assess the efficacy and safety of our score-based prophylaxis strategy in 542 pregnancies managed between 2005 and 2015 in Lyon University Hospitals. PATIENTS/METHODS: Of 445 patients included in the study, 36 had several pregnancies during the study period...
February 23, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28231515/computational-tools-for-enzyme-improvement-why-everyone-can-and-should-use-them
#4
REVIEW
Maximilian Ccjc Ebert, Joelle N Pelletier
This review presents computational methods that experimentalists can readily use to create smart libraries for enzyme engineering and to obtain insights into protein-substrate complexes. Computational tools have the reputation of being hard to use and inaccurate compared to experimental methods in enzyme engineering, yet they are essential to probe datasets of ever-increasing size and complexity. In recent years, bioinformatics groups have made a huge leap forward in providing user-friendly interfaces and accurate algorithms for experimentalists...
February 20, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28231177/the-goal-of-adequate-nutrition-can-it-be-made-affordable-sustainable-and-universal
#5
REVIEW
Ian McFarlane
Until about 1900, large proportions of the world population endured hunger and poverty. The 20th century saw world population increase from 1.6 to 6.1 billion, accompanied and to some extent made possible by rapid improvements in health standards and food supply, with associated advances in agricultural and nutrition sciences. In this paper, I use the application of linear programming (LP) in preparation of rations for farm animals to illustrate a method of calculating the lowest cost of a human diet selected from locally available food items, constrained to provide recommended levels of food energy and nutrients; then, to find a realistic minimum cost, I apply the further constraint that the main sources of food energy in the costed diet are weighted in proportion to the actual reported consumption of food items in that area...
November 30, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231148/potential-use-of-gamma-irradiated-ethnic-ready-to-eat-foods-to-improve-the-nutritional-status-of-landslide-victims
#6
REVIEW
Zubaidah Irawati Koenari, Carmen M Siagian, Bona Simanungkalit, Asti Nilatany, Indra Mustika Pratama, Deudeu Lasmawati, Cecep M Nurcahya
The safety and high quality of ethnic ready-to-eat foods as a source of nourishment and food supplies chain to the remote areas become particularly important. Consuming healthy and balanced nutritional foods means eating better quality foods in proper quantities. Such foods can be developed through a preservation technique by using ionizing radiation. Although implementation of the technology for certain foodstuffs has been implemented in some countries, application of the process to a complete set of meals for selected target groups is still very limited...
July 26, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231004/ionic-intercalation-in-2d-van-der-waals-materials-in-situ-characterization-and-electrochemical-control-of-the-anisotropic-thermal-conductivity-of-black-phosphorus
#7
Joon Sang Kang, Ming Ke, Yongjie Hu
Two-dimensional van der Waals materials have shown novel fundamental properties and promise for wide applications. Here, we reported, for the first time, an experimental demonstration of the in-situ characterization and control of the anisotropic thermal conductivity of black phosphorus. We develop a novel platform based on lithium ion batteries that integrates ultrafast optical spectroscopy and electrochemical control to investigate the interactions between lithium ions and the lattices of the black phosphorus electrode...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230971/multifaceted-gold-palladium-bimetallic-nanorods-and-their-geometric-compositional-and-catalytic-tunabilities
#8
Lichao Sun, Qingfeng Zhang, Guangfang Grace Li, Esteban Villarreal, Xiaoqi Fu, Hui Wang
Kinetically controlled, seed-mediated coreduction provides a robust and versatile synthetic approach to multimetallic nanoparticles with precisely controlled geometries and compositions. Here we demonstrate that single-crystalline cylindrical Au nanorods selectively transform into a series of structurally distinct Au@Au-Pd alloy core-shell bimetallic nanorods with exotic multifaceted geometries enclosed by specific types of facets upon seed-mediated Au-Pd coreduction under diffusion controlled conditions. By adjusting several key synthetic parameters, such as the Pd/Au precursor ratio, the reducing agent concentration, the capping surfactant concentration, and foreign metal ion additives, we have been able to simultaneously fine-tailor the atomic-level surface structures and fine-tune the compositional stoichiometries of the multifaceted Au-Pd bimetallic nanorods...
February 23, 2017: ACS Nano
https://www.readbyqxmd.com/read/28230916/design-principles-for-covalent-organic-frameworks-as-efficient-electrocatalysts-in-clean-energy-conversion-and-green-oxidizer-production
#9
Chun-Yu Lin, Lipeng Zhang, Zhenghang Zhao, Zhenhai Xia
Covalent organic frameworks (COFs), an emerging class of framework materials linked by covalent bonds, hold potential for various applications such as efficient electrocatalysts, photovoltaics, and sensors. To rationally design COF-based electrocatalysts for oxygen reduction and evolution reactions in fuel cells and metal-air batteries, activity descriptors, derived from orbital energy and bonding structures, are identified with the first-principle calculations for the COFs, which correlate COF structures with their catalytic activities...
February 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28230868/tuning-calcium-biosensors-with-a-single-site-mutation-structural-dynamics-insights-from-femtosecond-raman-spectroscopy
#10
Sean R Tachibana, Longteng Tang, Yanli Wang, Liangdong Zhu, Weimin Liu, Chong Fang
Fluorescent protein biosensors are popular reporters for biological processes and life sciences, but their fundamental working mechanisms remain unclear. To characterize the functional fluorescence events on their native timescales, we implemented wavelength-tunable femtosecond stimulated Raman spectroscopy (FSRS) to shed light on a blue-green emission-ratiometric fluorescent protein based Ca(2+) biosensor with a single Pro377Arg mutation. The transient Raman modes of the embedded chromophore from ca. 1000-1650 cm(-1) exhibit characteristic intensity and frequency dynamics which infer the underlying atomic motions and photochemical reaction stages...
February 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28230801/ethnopharmacology-chemistry-and-biological-properties-of-four-malian-medicinal-plants
#11
REVIEW
Karl Egil Malterud
The ethnopharmacology, chemistry and pharmacology of four Malian medicinal plants, Biophytum umbraculum, Burkea africana, Lannea velutina and Terminalia macroptera are reviewed. These plants are used by traditional healers against numerous ailments: malaria, gastrointestinal diseases, wounds, sexually transmitted diseases, insect bites and snake bites, etc. The scientific evidence for these uses is, however, limited. From the chemical and pharmacological evidence presented here, it seems possible that the use in traditional medicine of these plants may have a rational basis, although more clinical studies are needed...
February 21, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28230762/the-development-of-ck2-inhibitors-from-traditional-pharmacology-to-in-silico-rational-drug-design
#12
REVIEW
Giorgio Cozza
Casein kinase II (CK2) is an ubiquitous and pleiotropic serine/threonine protein kinase able to phosphorylate hundreds of substrates. Being implicated in several human diseases, from neurodegeneration to cancer, the biological roles of CK2 have been intensively studied. Upregulation of CK2 has been shown to be critical to tumor progression, making this kinase an attractive target for cancer therapy. Several CK2 inhibitors have been developed so far, the first being discovered by "trial and error testing". In the last decade, the development of in silico rational drug design has prompted the discovery, de novo design and optimization of several CK2 inhibitors, active in the low nanomolar range...
February 20, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28230655/lessons-learned-from-human-hiv-vaccine-trials
#13
Justin Pollara, David Easterhoff, Genevieve G Fouda
PURPOSE OF REVIEW: The ability to induce broadly neutralizing antibody (bNAb) responses is likely essential for development of a globally effective HIV vaccine. Unfortunately, human vaccine trials conducted to date have failed to elicit broad plasma neutralization of primary virus isolates. Despite this limitation, in-depth analysis of the vaccine-induced memory B-cell repertoire can provide valuable insights into the presence and function of subdominant B-cell responses, and identify initiation of antibody lineages that may be on a path towards development of neutralization breadth...
February 21, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28230377/tailoring-anisotropic-li-ion-transport-tunnels-on-orthogonally-arranged-li-rich-layered-oxide-nanoplates-towards-high-performance-li-ion-batteries
#14
Ming Xu, Linfeng Fei, Wei-Bing Zhang, Tao Li, Wei Lu, Nian Zhang, Yanqing Lai, Zhian Zhang, Jing Fang, Kai Zhang, Jie Li, Haitao Huang
High-performance Li-rich layered oxide (LRLO) cathode material is appealing for next-generation Li-ion batteries owing to its high specific capacity (>300 mAh g-1). Despite intense studies in past decade, the low initial Coulombic efficiency and unsatisfactory cycling stability of LRLO still remain great challenges for its practical application. Here, we report a rational design of the orthogonally arranged {010}-oriented LRLO nanoplates with built-in anisotropic Li+ ion transport tunnels. Such a novel structure enables fast Li+ ion intercalation and deintercalation kinetics and enhanced structure stability for LRLO...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230348/nmr-structures-of-gcn4p-are-largely-conserved-when-ion-pairs-are-disrupted-at-acidic-ph-but-show-a-relaxation-of-the-coiled-coil-superhelix
#15
Anne R Kaplan, Megan R Brady, Mark W Maciejewski, Richard A Kammerer, Andrei T Alexandrescu
To understand the roles ion pairs play in stabilizing coiled coils we determined NMR structures of GCN4p at three pH values. At pH 6.6 all acidic residues are fully charged, at pH 4.4 they are half-charged, and at pH 1.5 they are protonated and uncharged. The α-helix monomer and coiled coil structures of GCN4p are largely conserved, except for a loosening of the coiled coil quaternary structure with decreasing pH. Differences going from neutral to acidic pH include (i) an unwinding of the coiled coil superhelix due to the loss of inter-chain ion pair contacts, (ii) a small increase in the separation of the monomers in the dimer, (iii) a loosening of knobs-into-holes packing motifs, and (iv) an increased separation between oppositely charged residues that participate in ion pairs at neutral pH...
February 23, 2017: Biochemistry
https://www.readbyqxmd.com/read/28230287/therapeutic-potential-of-targeting-pi3k-akt-pathway-in-treatment-of-colorectal-cancer-rational-and-progress
#16
Afsane Bahrami, Majid Khazaei, Malihe Hasanzadeh, Soodabeh ShahidSales, Mona Joudi Mashhad, Marjaneh Farazestanian, Hamid Reza Sadeghnia, Majid Rezayi, Mina Maftouh, Seyed Mahdi Hassanian, Amir Avan
PI3K/AKT/mTOR signaling pathway is one of the key dysregulated pathways in different tumor types, including colorectal cancer (CRC). Activation of this pathway is shown to be related with cellular transformation, tumor progression, cell survival and drug resistance. There is growing body of data evaluating the value of PI3K/AKT/mTOR inhibitors in CRC (e.g., BEZ235, NVP-BEZ235, OSI-027, everolimus, MK-2206, KRX-0401, BYL719 and BKM120). This report summarizes the current knowledge about PI3K/AKT pathway and its cross talk with ERK/MAPK and mTOR pathways with particular emphasis on the value of targeting this pathway as a potential therapeutic target in treatment of colorectal cancer...
February 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28230154/compiler-aided-systematic-construction-of-large-scale-dna-strand-displacement-circuits-using-unpurified-components
#17
Anupama J Thubagere, Chris Thachuk, Joseph Berleant, Robert F Johnson, Diana A Ardelean, Kevin M Cherry, Lulu Qian
Biochemical circuits made of rationally designed DNA molecules are proofs of concept for embedding control within complex molecular environments. They hold promise for transforming the current technologies in chemistry, biology, medicine and material science by introducing programmable and responsive behaviour to diverse molecular systems. As the transformative power of a technology depends on its accessibility, two main challenges are an automated design process and simple experimental procedures. Here we demonstrate the use of circuit design software, combined with the use of unpurified strands and simplified experimental procedures, for creating a complex DNA strand displacement circuit that consists of 78 distinct species...
February 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28229974/molecular-mechanism-of-endosulfan-action-in-mammals
#18
Robin Sebastian, Sathees C Raghavan
Endosulfan is a broad-spectrum organochlorine pesticide, speculated to be detrimental to human health in areas of active exposure. However, the molecular insights to its mechanism of action remain poorly understood. In two recent studies, our group investigated the physiological and molecular aspects of endosulfan action using in vitro, ex vivo and in vivo analyses. The results showed that apart from reducing fertility levels in male animals, Endosulfan induced DNA damage that triggers compromised DNA damage response leading to undesirable processing of broken DNA ends...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229915/regulated-methionine-oxidation-by-monooxygenases
#19
REVIEW
Bruno Manta, Vadim N Gladyshev
Protein function can be regulated via post-translational modifications by numerous enzymatic and non-enzymatic mechanisms, including oxidation of cysteine and methionine residues. Redox-dependent regulatory mechanisms have been identified for nearly every cellular process, but the major paradigm has been that cellular components are oxidized (damaged) by reactive oxygen species (ROS) in a relatively unspecific way, and then reduced (repaired) by designated reductases. While this scheme may work with cysteine, it cannot be ascribed to other residues, such as methionine, whose reaction with ROS is too slow to be biologically relevant...
February 13, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28229587/non-peptide-based-small-molecule-probe-for-fluorogenic-and-chromogenic-detection-of-chymotrypsin
#20
Lei Wu, Shu-Hou Yang, Hao Xiong, Jia-Qian Yang, Jun Guo, Wen-Chao Yang, Guang-Fu Yang
We report herein a non-peptide-based small molecule probe for fluorogenic and chromogenic detection of chymotrypsin, and the primary application. This probe was rationally designed by mimicking the peptide substrate and optimized by adjusting the recognization group. The refined probe 2 exhibits good specificity toward chymotrypsin, producing about 25-fold higher enhancement in both the fluorescence intensity and absorbance upon the catalysis by chymotrypsin. Compared with the most widely used peptide substrate (AMC-FPAA-Suc) of chymotrypsin, probe 2 shows about 5-fold higher binding affinity, and comparable catalytical efficiency against chymotrypsin...
February 23, 2017: Analytical Chemistry
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