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https://www.readbyqxmd.com/read/29779261/better-diet-quality-is-associated-with-lower-odds-of-severe-periodontitis-in-us-hispanics-latinos
#1
Christian R Salazar, Nadia Laniado, Yasmin Mossavar-Rahmani, Luisa N Borrell, Qibin Qi, Daniela Sotres-Alvarez, Douglas E Morse, Richard H Singer, Robert C Kaplan, Victor Badner, Ira B Lamster
AIM: We investigated the cross-sectional association between diet quality and severe periodontitis in a sample of diverse Hispanics from the Hispanic Community Health Study/Study of Latinos. MATERIALS AND METHODS: A total of 13,920 Hispanic/Latinos aged 18-74 years of different heritages underwent a full-mouth oral examination and completed two 24hr dietary recalls during 2008-2011. Severe periodontitis was defined as having ≥30% tooth sites with clinical attachment loss ≥ 5mm...
May 19, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29778988/synthesis-microstructure-and-mechanical-behaviour-of-a-unique-porous-phbv-scaffold-manufactured-using-selective-laser-sintering
#2
Sven H Diermann, Mingyuan Lu, Yitian Zhao, Luigi-Jules Vandi, Matthew Dargusch, Han Huang
Selective Laser Sintering (SLS) is a promising technique for manufacturing bio-polymer scaffolds used in bone tissue engineering applications. Conventional scaffolds made using SLS have complex engineered architectures to introduce adequate porosity and pore interconnectivity. This study presents an alternative approach to manufacture scaffolds via SLS without using pre-designed architectures. In this work, a SLS process was developed for fabricating interconnected porous biodegradable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) scaffolds with large surface areas and relative porosities of up to 80%...
May 17, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29777910/differentially-expressed-novel-alternatively-spliced-transcript-variant-of-tumor-suppressor-stk11-gene-in-mouse
#3
Hassan Mubarak Ishqi, Tarique Sarwar, Mohammed Amir Husain, Sayeed Ur Rehman, Mohammad Tabish
Serine/threonine kinase 11 (STK11) is a protein kinase that is encoded by Stk11 gene located on chromosome 19 and 10 in humans and mouse respectively. It acts as a master kinase of adenine monophosphate-activated protein kinase (AMPK) pathway that coordinates the regulation of cellular energy metabolism and cell division. STK11 exerts effect by activating more than 14 kinases including AMPK and AMPK-related kinases. It is also known to regulate cell polarity and acts as tumor suppressor. Alternative splicing of pre-mRNA is a mechanism which results in multiple transcript variants of a single gene...
May 16, 2018: Gene
https://www.readbyqxmd.com/read/29777900/material-basis-research-for-huangqi-jianzhong-tang-against-chronic-atrophic-gastritis-rats-through-integration-of-urinary-metabonomics-and-systemsdock
#4
Yuetao Liu, Wenqian Xu, GuoHong Wang, Xuemei Qin
ETHNOPHARMACOLOGICAL RELEVANCE: Huangqi Jianzhong Tang (HQJZ), a celebrated traditional Chinese medicine (TCM), is commonly used for treatment of chronic atrophic gastritis (CAG) in China. AIM OF THE STUDY: We aimed to screen out the material basis of HQJZ against CAG. MATERIALS AND METHODS: CAG rat model was constructed by alternant administrations of ammonia solution and sodium deoxycholate, and the hunger disorder method. Body weight, biochemical indexes and histopathological exam were used to evaluate the efficacy of HQJZ...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777783/accelerated-lipid-catabolism-and-autophagy-are-cancer-survival-mechanisms-under-inhibited-glutaminolysis
#5
Anna Halama, Michal Kulinski, Shaima S Dib, Shaza B Zaghlool, Kodappully S Siveen, Ahmad Iskandarani, Jonas Zierer, Kirti S Prabhu, Noothan J Satheesh, Aditya M Bhagwat, Shahab Uddin, Gabi Kastenmüller, Olivier Elemento, Steven S Gross, Karsten Suhre
Suppressing glutaminolysis does not always induce cancer cell death in glutamine dependent tumors because cells may switch to alternative energy sources. To reveal compensatory metabolic pathways, we investigated the metabolome-wide cellular response to inhibited glutaminolysis in cancer cells. Glutaminolysis inhibition with C.968 suppressed cell proliferation but was insufficient to induce cancer cell death. We found that lipid catabolism was activated as a compensation for glutaminolysis inhibition. Accelerated lipid catabolism, together with oxidative stress induced by glutaminolysis inhibition, triggered autophagy...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29777365/effects-of-replacing-rye-grass-lolium-spp-hay-by-banana-musa-acuminata-l-by-products-on-feed-intake-growth-and-feed-conversion-rate-of-canary-hair-sheep-breed-pelibuey-lambs
#6
M Barbera, J R Jaber, S Ahmed-Salek, A Ravelo-Garcia, E Rodríguez-Ponce, L Rey, M R Ventura
The objective of this study was to evaluate the effects of replacing rye-grass (Lolium spp.) hay with banana (Musa acuminata L.) by-products on feed intake, average daily gain (ADG), and feed conversion rate (FCR) in Pelibuey (hair sheep breed) lambs. The lambs (n = 22; initial BW = 14.8 ± 2.5 kg) were individually housed and fed on two different types of diet for 58 days: the first group (experimental diet) received as forage a mixture of fresh banana by-products composed of leaves and pseudostem...
May 19, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29775725/anti-hepatitis-c-virus-activity-and-synergistic-effect-of-nymphaea-alba-extracts-and-bioactive-constituents-in-liver-infected-cells
#7
Sidra Rehman, Usman Ali Ashfaq, Bushra Ijaz, Sheikh Riazuddin
BACKGROUND: Without an effective vaccine, hepatitis C virus (HCV) remains a global threat, inflicting 170-300 million carriers worldwide at risk of cirrhosis and hepatocellular carcinoma (HCC). Though various direct acting antivirals have been redeemed the hepatitis C treatment, a few restraints persist including possible side effects, viral resistance emergence, excessive cost which restricts its availability to a common person. HYPOTHESIS: There is no preventive HCV vaccine available today so the discovery of potent antiviral natural flora and their bioactive constituents may help to develop preventive cures against HCV infection...
May 15, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29775565/a-role-of-neuropeptide-cart-in-hyperphagia-and-weight-gain-induced-by-olanzapine-treatment-in-rats
#8
Kartik T Nakhate, Nishikant K Subhedar, Dadasaheb M Kokare
Although olanzapine is highly efficacious and most widely used second generation antipsychotic drug, the success of treatment has been hampered by its propensity to induce weight gain. While the underlying neuronal mechanisms are unclear, their elucidation may help to target alternative pathways regulating energy balance. The present study was undertaken to define the role of cocaine- and amphetamine-regulated transcript (CART), a well-known anorexic peptide, in olanzapine-induced hyperphagia and body weight gain in rats...
May 15, 2018: Brain Research
https://www.readbyqxmd.com/read/29775545/effect-of-bamboo-vinegar-powder-as-an-antibiotic-alternative-on-the-digesta-bacteria-communities-of-finishing-pigs
#9
Huan Qu, Yanjie Huang, Yinghao Shi, Ying Liu, Shenglong Wu, Wenbin Bao
This study investigated the use for bamboo vinegar powder as an antibiotic alternative in the diet of growing-finishing pigs by examining their digestive bacterial communities. Forty-five Duroc × Landrace × Yorkshire growing-finishing pigs were randomly allocated to five diet groups: 0%,0.5%, 1.0%, or 1.5% bamboo vinegar levels and antibiotics. After 37 days, the digesta in duodenum of four pigs from each treatment were analyzed for their bacterial community compositions using 16S rRNA gene sequencing. Addition of 1...
May 18, 2018: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/29775455/atomic-resolution-mechanism-of-ligand-binding-to-a-solvent-inaccessible-cavity-in-t4-lysozyme
#10
Jagannath Mondal, Navjeet Ahalawat, Subhendu Pandit, Lewis E Kay, Pramodh Vallurupalli
Ligand binding sites in proteins are often localized to deeply buried cavities, inaccessible to bulk solvent. Yet, in many cases binding of cognate ligands occurs rapidly. An intriguing system is presented by the L99A cavity mutant of T4 Lysozyme (T4L L99A) that rapidly binds benzene (~106 M-1s-1). Although the protein has long served as a model system for protein thermodynamics and crystal structures of both free and benzene-bound T4L L99A are available, the kinetic pathways by which benzene reaches its solvent-inaccessible binding cavity remain elusive...
May 18, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29775330/constraining-alternative-theories-of-gravity-using-pulsar-timing-arrays
#11
Neil J Cornish, Logan O'Beirne, Stephen R Taylor, Nicolás Yunes
The opening of the gravitational wave window by ground-based laser interferometers has made possible many new tests of gravity, including the first constraints on polarization. It is hoped that, within the next decade, pulsar timing will extend the window by making the first detections in the nanohertz frequency regime. Pulsar timing offers several advantages over ground-based interferometers for constraining the polarization of gravitational waves due to the many projections of the polarization pattern provided by the different lines of sight to the pulsars, and the enhanced response to longitudinal polarizations...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775306/mechanistic-study-on-water-splitting-reactions-by-small-silicon-clusters-si-3-x-x-si-be-mg-ca
#12
Tran Dieu Hang, Minh Tho Nguyen
(Abstract) Interaction, dissociation and dehydrogenation reactions of water monomer and dimer with pure and mixed tetrameric silicon clusters Si3X with X = Si, Be, Mg, Ca were investigated using high accuracy quantum chemical calculations. While geometries were optimized using the DFT/B3LYP functional with the aug-cc-pVTZ basis set, reaction energy profiles were constructed making use of the coupled-cluster theory with extrapolation to complete basis set, CCSD(T)/CBS. Cleavage of the O-H bond in water dimer is found to be more favored than that of water monomer in the reaction with Si4...
May 18, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29775295/noncovalent-grafting-of-a-dy-iii-2-single-molecule-magnet-onto-chemically-modified-multiwalled-carbon-nanotubes
#13
Vassilis Tangoulis, Nikolia Lalioti, John Parthenios, Nikos Boukos, Ondřej Malina, Jiří Tuček, Radek Zbořil
While synthetic methods for the grafting of nanoparticles or photoactive molecules onto carbon nanotubes (CNTs) have been developed in the last years, a very limited number of reports have appeared on the grafting of single-molecule magnets (SMMs) onto CNTs. There are many potential causes, mainly focused on the fact that the attachment of molecules on surfaces remains not trivial and their magnetic properties are significantly affected upon attachment. Nevertheless, implementation of this particular type of hybrid material in demanding fields such as spintronic devices makes of utmost importance the investigation of new synthetic protocols for effective grafting...
May 18, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29774828/bilberry-pomace-in-rabbit-nutrition-effects-on-growth-performance-apparent-digestibility-caecal-traits-bacterial-community-and-antioxidant-status
#14
S Dabbou, I Ferrocino, A Kovitvadhi, S Bergagna, D Dezzuto, A Schiavone, L Cocolin, F Gai, V Santoro, L Gasco
Agricultural by-products could be used as alternative raw materials in rabbit nutrition as they have been found to be highly nutritious and low cost feeding sources. The aim of this study was to estimate the nutritive value and potential use of bilberry pomace (BP) for growing rabbits. A total of 144 Grimaud rabbits (35 days old) were allotted to four groups and fed with a diet containing increasing level of BP: BP0 (basal diet), BP5, BP10 and BP15 containing 0, 50, 100 and 150 g/kg respectively. Growth trial lasted 48 days; apparent digestibility was evaluated, starting at 46 days of age, over 4 consecutive days...
May 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29774618/direct-laser-writing-of-graphene-made-from-chemical-vapor-deposition-for-flexible-integratable-micro-supercapacitors-with-ultrahigh-power-output
#15
Jianglin Ye, Huabing Tan, Shuilin Wu, Kun Ni, Fei Pan, Jie Liu, Zhuchen Tao, Yan Qu, Hengxing Ji, Patrice Simon, Yanwu Zhu
High-performance yet flexible micro-supercapacitors (MSCs) hold great promise as miniaturized power sources for increasing demand of integrated electronic devices. Herein, this study demonstrates a scalable fabrication of multilayered graphene-based MSCs (MG-MSCs), by direct laser writing (DLW) of stacked graphene films made from industry-scale chemical vapor deposition (CVD). Combining the dry transfer of multilayered CVD graphene films, DLW allows a highly efficient fabrication of large-areal MSCs with exceptional flexibility, diverse planar geometry, and capability of customer-designed integration...
May 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29774400/cost-effectiveness-of-osteoporosis-screening-strategies-for-hip-fracture-prevention-in-older-chinese-people-a-decision-tree-modeling-study-in-the-mr-os-and-ms-os-cohort-in-hong-kong
#16
Y Su, F T T Lai, B H K Yip, J C S Leung, T C Y Kwok
Despite the high costs of hip fracture, many governments provide limited support for osteoporosis screening. We demonstrated that osteoporosis screening by dual-energy X-ray absorptiometry (DXA) with or without pre-screening by Fracture Risk Assessment Tool (FRAX) or calcaneal ultrasound are more cost-effective than no screening in Chinese people aged 65 or over in Hong Kong. INTRODUCTION: To examine the cost-effective potential osteoporosis screening strategies for hip fracture prevention in Hong Kong...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29772752/ion-doping-effects-on-the-lattice-distortion-and-interlayer-mismatch-of-aurivillius-type-bismuth-titanate-compounds
#17
Yu Chen, Jiageng Xu, Shaoxiong Xie, Zhi Tan, Rui Nie, Zhongwei Guan, Qingyuan Wang, Jianguo Zhu
Taking Bismuth Titanate (Bi₄Ti₃O12 ) as a Aurivillius-type compound with m = 3 for example, the ion (W6+ /Cr3+ ) doping effect on the lattice distortion and interlayer mismatch of Bi₄Ti₃O12 structure were investigated by stress analysis, based on an elastic model. Since oxygen-octahedron rotates in the ab-plane, and inclines away from the c-axis, a lattice model for describing the status change of oxygen-octahedron was built according to the substituting mechanism of W6+ /Cr3+ for Ti4+ , which was used to investigate the variation of orthorhombic distortion degree ( a/b ) of Bi₄Ti₃O12 with the doping content...
May 17, 2018: Materials
https://www.readbyqxmd.com/read/29772608/activity-behaviours-in-lean-and-morbidly-obese-pregnant-women
#18
Caterina Fazzi, Nor Mohd-Shukri, Fiona C Denison, David H Saunders, Jane E Norman, Rebecca M Reynolds
Interventions to increase physical activity in pregnancy are challenging for morbidly obese women. Targeting sedentary behaviours may be a suitable alternative to increase energy expenditure. We aimed to determine total energy expenditure, and energy expended in sedentary activities in morbidly obese and lean pregnant women. We administered the Pregnancy Physical Activity Questionnaire PPAQ (non-objective) and the Actical accelerometer (objective) to morbidly obese (BMI≥40kg/m²) and lean (BMI≤25Kg/M²) pregnant women recruited in early (<24 weeks), and late (≥24 weeks) gestation...
May 17, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29772529/microbial-bio-fuels-a-solution-to-carbon-emissions-and-energy-crisis
#19
Arun Kumar, Sumit Kaushal, Shubhini A Saraf, Jay Shankar Singh
Increasing energy demand, limited fossil fuel resources and climate change have prompted development of alternative sustainable and economical fuel resources such as crop-based bio-ethanol and bio-diesel. However, there is concern over use of arable land that is used for food agriculture for creation of biofuel. Thus, there is a renewed interest in the use of microbes particularly microalgae for bio-fuel production. Microbes such as micro-algae and cyanobacteria that are used for biofuel production also produce other bioactive compounds under stressed conditions...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29772290/nature-engineered-diatom-biosilica-as-drug-delivery-systems
#20
REVIEW
U T Uthappa, Varsha Brahmkhatri, G Sriram, Ho-Young Jung, Jingxian Yu, Nikita Kurkuri, Tejraj M Aminabhavi, Tariq Altalhi, Gururaj M Neelgund, Mahaveer D Kurkuri
Diatoms, unicellular photosynthetic algae covered with siliceous cell wall, are also called frustule. These are the most potential naturally available materials for the development of cost-effective drug delivery systems because of their excellent biocompatibility, high surface area, low cost and ease of surface modification. Mesoporous silica materials such as MCM-41 and SBA-15 have been extensively used in drug delivery area. Their synthesis is challenging, time consuming, requires toxic chemicals and are energy intensive, making the entire process expensive and non-viable...
May 14, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
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