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https://www.readbyqxmd.com/read/28109118/a-mandible-from-the-middle-pleistocene-hexian-site-and-its-significance-in-relation-to-the-variability-of-asian-homo-erectus
#1
Wu Liu, María Martinón-Torres, Yousuke Kaifu, Xiujie Wu, Reiko T Kono, Chun-Hsiang Chang, Pianpian Wei, Song Xing, Wanbo Huang, José María Bermúdez de Castro
OBJECTIVES: This study presents the first detailed morphological description and comparison of a Middle Pleistocene hominin mandibular fragment (PA 831) and associated teeth from the Hexian site in Eastern China. We aim to investigate where the Hexian mandible fits within the genus Homo variability in the light of an increased and better characterized Asian fossils record. METHODS: Comparative samples include Pleistocene Homo mandibles and teeth from Africa, Asia, and Europe, as well as earlier African hominins (Australopithecus and early Homo) and Holocene recent humans...
January 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28109043/angiographic-assessment-of-aortic-regurgitation-by-video-densitometry-in-the-setting-of-tavi-echocardiographic-and-clinical-correlates
#2
Mohammad Abdelghani, Hiroki Tateishi, Yosuke Miyazaki, Rafael Cavalcante, Osama I I Soliman, Jan G Tijssen, Robbert J de Winter, Jan Baan, Yoshinobu Onuma, Carlos M Campos, Rogério S Leite, José A Mangione, Alexandre Abizaid, Pedro A Lemos, Fabio S de Brito, Patrick W Serruys
OBJECTIVES: We sought to investigate a new angiographic method for aortic regurgitation (AR) severity assessment in the setting of transcatheter aortic valve implantation (TAVI). BACKGROUND: AR after TAVI is common but challenging to quantitate, especially in the cath-lab. METHODS: In 228 patients, AR was quantitated before and after TAVI by echocardiography and by video-densitometric analysis of aortograms. Contrast time-density curves for the aortic root (the reference region) and the left ventricular outflow tract, LVOT were generated...
January 21, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28108959/innovative-root-end-filling-materials-based-on-calcium-silicates-and-calcium-phosphates
#3
Ali Abedi-Amin, Arlinda Luzi, Massimo Giovarruscio, Gaetano Paolone, Atanaz Darvizeh, Victoria Vivó Agulló, Salvatore Sauro
This in vitro study evaluated the apical sealing ability, bioactivity and biocompatibility of an experimental calcium silicate-based and two light-curing calcium silicate/calcium-phosphate cements as potential root end filling materials. A calcium silicate Portland-based (Control PC), an experimental calcium silicate (Exp. PC) and two light-curing cements (LC-CaP; LC-Si/CaP) were assessed for their alkalinising activity (pH) and biocompatibility. Single-rooted human canines were endodontically treated, filled with gutta-percha and finally submitted to apicoectomy...
February 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28108937/glycyrrhizin-ameliorates-experimental-colitis-through-attenuating-interleukin-17-producing-t-cell-responses-via-regulating-antigen-presenting-cells
#4
Xiangyu Chen, Dai Fang, Lingyun Li, Liyong Chen, Qirui Li, Feili Gong, Min Fang
Glycyrrhizin, a component of Chinese medicine licorice root, has the ability to inhibit the functions of high-mobility group box 1 (HMGB1). While glycyrrhizin is known to have anti-inflammatory activities, the underlying mechanisms by which glycyrrhizin inhibits inflammation during the development of trinitrobenzenesulfonic acid (TNBS)-induced experimental colitis are not well understood. This study systemically examined the regulatory effects of glycyrrhizin on inflammatory response in TNBS-induced murine colitis and explored the potential mechanisms involved in this process...
January 21, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28108925/soil-compaction-effects-on-soil-health-and-cropproductivity-an-overview
#5
Adnan Noor Shah, Mohsin Tanveer, Babar Shahzad, Guozheng Yang, Shah Fahad, Saif Ali, Muhammad Adnan Bukhari, Shahbaz Atta Tung, Abdul Hafeez, Biangkham Souliyanonh
Soil compaction causes substantial reduction in agriculture productivity and has always been of great distress for farmers. Intensive agriculture seems to be more crucial in causing compaction. High mechanical load, less crop diversification, intensive grazing, and irrigation methods lead to soil compaction. It is further exasperated when these factors are accompanied with low organic matter, animal trampling, engine vibrations, and tillage at high moisture contents. Soil compaction increases soil bulk density and soil strength, while decreases porosity, aggregate stability index, soil hydraulic conductivity, and nutrient availability, thus reduces soil health...
January 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28108917/quantitative-proteomics-analysis-reveals-the-tolerance-of-mirabilis-jalapa-l-to-petroleum-contamination
#6
Shuisen Chen, Hui Ma, Zhifu Guo, Yaping Feng, Jingwei Lin, Menghua Zhang, Ming Zhong
Petroleum is not only an important energy resource but is also a major soil pollutant. To gain better insight into the adaptability mechanism of Mirabilis jalapa to petroleum-contaminated soil, the protein profiles of M. jalapa root were investigated using label-free quantitative proteomics technique. After exposing to petroleum-contaminated soil for 24 h, 34 proteins significantly changed their protein abundance and most of the proteins increased in protein abundance (91.18%). Combined with gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses as well as data from previous studies, our results revealed that M...
January 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28108833/soft-tissue-substitutes-in-non-root-coverage-procedures-a-systematic-review-and-meta-analysis
#7
REVIEW
Kristina Bertl, Maximilian Melchard, Nikolaos Pandis, Michael Müller-Kern, Andreas Stavropoulos
OBJECTIVES: The present systematic review compared the effectiveness of soft tissue substitutes (STSs) and autogenous free gingival grafts (FGGs) in non-root-coverage procedures to increase keratinized tissue (KT) width around teeth. MATERIALS AND METHODS: Included studies fulfilled the following main eligibility criteria: (a) preclinical in vivo or human controlled trials using FGG as control, (b) non-root-coverage procedures, and (c) assessment of KT width. Meta-analysis was performed on the gain in KT width (primary outcome variable) and several secondary variables...
January 20, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28108775/-injection-therapy-for-cervical-and-lumbar-syndromes
#8
J Grifka, A Benditz, D Boluki
In cervical and lumbar pain syndromes special injections are key for effective pain therapy. Depending on the origin of pain injections are placed at the nerve root or the joints. Thus, the vicious cycle can be stopped. A correct technical procedure is of enormous importance. Because pharmacological effects and special complications are possible, monitoring and precautions are mandatory.
January 20, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28108755/measurement-of-aortic-valve-coaptation-and-effective-height-using-echocardiography-in-patients-with-ventricular-septal-defects-and-aortic-valve-prolapse
#9
Satoru Iwashima, Hiroki Uchiyama, Takamichi Ishikawa, Kiyohiro Takigiku, Ken Takahashi, Manatomo Toyono, Nao Inoue, Masaki Nii
Decreased coaptation height in adults has been identified as a marker of early valve failure. We evaluated aortic valve coaptation and effective height in healthy children and in children with a ventricular septal defect (VSD) with aortic cusp prolapse (ACP), using echocardiography. We included 45 subjects with VSD with ACP, 27 did not develop aortic regurgitation (AR) by ACP and 18 developed AR by ACP, and 83 healthy children as controls. Aortic root anatomy was estimated using the parasternal long-axis view...
January 21, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28108566/total-aortic-arch-replacement-with-the-frozen-elephant-trunk-procedure-in-acute-debakey-type-i-aortic-dissections
#10
Malakh Shrestha, Axel Haverich, Andreas Martens
OBJECTIVES: In patients with acute aortic dissection involving the arch and the descending aorta (AADA DeBakey type I), performing a total aortic arch replacement with the frozen elephant trunk (FET) procedure for supposedly better long-term results is still controversial. METHODS: From February 2004 to April 2016, 94 patients with AADA DeBakey type I had an FET procedure (80% men, age 58 ± 12 years). During the early period (Group 1, 2004-10), the FET technique was performed using non-branched grafts...
January 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28108525/back-to-the-roots-of-regulated-necrosis
#11
Vladimir Todorov, Andreas Linkermann
In recent years, our knowledge of how cells die by regulated pathways of necrosis has increased tremendously. In this issue, Distéfano et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201605110) provide yet another milestone in our understanding of regulated necrosis as they identify a ferroptosis-like cell death in Arabidopsis thaliana.
January 20, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28108165/microbial-siderophores-and-root-exudates-enhanced-goethite-dissolution-and-fe-as-uptake-by-as-hyperaccumulator-pteris-vittata
#12
Xue Liu, Jing-Wei Fu, Evandro Da Silva, Xiao-Xia Shi, Yue Cao, Bala Rathinasabapathi, Yanshan Chen, Lena Q Ma
Arsenic (As) in soils is often adsorbed on Fe-(hydro)oxides surface, rendering them more resistant to dissolution, which is undesirable for phytoremediation of As-contaminated soils. Arsenic hyperaccumulator Pteris vittata prefers to grow in calcareous soils where available Fe and As are low. To elucidate its mechanisms of acquiring Fe and As from insoluble sources in soils, we investigated dissolution of goethite with pre-adsorbed arsenate (AsV; As-goethite) in presence of four organic ligands, including two root exudates (oxalate and phytate, dominant in P...
January 17, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28108088/meeting-the-needs-of-sexual-and-gender-minority-youth-formative-research-on-potential-digital-health-interventions
#13
Jessica Steinke, Meredith Root-Bowman, Sherry Estabrook, Deborah S Levine, Leslie M Kantor
PURPOSE: Sexual and gender minority youth (SGMY) have unique risk factors and worse health outcomes than their heterosexual and cisgender counterparts. SGMY's significant online activity represents an opportunity for digital interventions. To help meet the sex education and health needs of SGMY and to understand what they consider important, formative research was conducted to guide and inform the development of new digital health interventions. METHODS: Semistructured interviews, in-person focus groups, and online focus groups were conducted with 92 youths (aged 15-19 years) who self-identify as nonheterosexual, noncisgender, questioning, and/or have engaged in same-sex sexual behavior...
January 11, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28107978/fret-based-nanobiosensor-for-detection-of-scopolamine-in-hairy-root-extraction-of-atropa-belladonna
#14
Fereshte Bagheri, Khosro Piri, Afshine Mohsenifar, Smaiil Ghaderi
A simple, sensitive, selective, and rapid optical nanobiosensor based on FRET was designed to detect tropane alkaloids as anti-cholinergic agents in natural and transgenic hairy roots extracts of Atropa belladonna. To achieve that, conjugation of tioglycolyic acid capped cadmium telluride quantum Dots, M2 muscarinic receptor (Cd/Te QDs-M2R) and conjugation of scopolamine-rhodamine123 (Sc-Rho123) were performed. More specifically, proportional amounts of M2 muscarinic receptor and quantum dots (QDs) were conjugated while scopolamine (as a tropane alkaloid) and rhodamine123 were also combined and these moieties functioned as donor and acceptor pairs, respectively...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107970/a-new-analytical-method-for-quantification-of-olive-and-palm-oil-in-blends-with-other-vegetable-edible-oils-based-on-the-chromatographic-fingerprints-from-the-methyl-transesterified-fraction
#15
Ana M Jiménez-Carvelo, Antonio González-Casado, Luis Cuadros-Rodríguez
A new analytical method for the quantification of olive oil and palm oil in blends with other vegetable edible oils (canola, safflower, corn, peanut, seeds, grapeseed, linseed, sesame and soybean) using normal phase liquid chromatography, and applying chemometric tools was developed. The procedure for obtaining of chromatographic fingerprint from the methyl-transesterified fraction from each blend is described. The multivariate quantification methods used were Partial Least Square-Regression (PLS-R) and Support Vector Regression (SVR)...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107770/different-parts-different-stories-climate-sensitivity-of-growth-is-stronger-in-root-collars-versus-stems-in-tundra-shrubs
#16
Pascale Ropars, Sandra Angers-Blondin, Marianne Gagnon, Isla H Myers-Smith, Esther Lévesque, Stéphane Boudreau
Shrub densification has been widely reported across the circumpolar arctic and subarctic biomes in recent years. Long-term analyses based on dendrochronological techniques applied to shrubs have linked this phenomenon to climate change. However, the multi-stemmed structure of shrubs makes them difficult to sample and therefore leads to non-uniform sampling protocols among shrub ecologists, who will favor either root collars or stems to conduct dendrochronological analyses. Through a comparative study of the use of root collars and stems of Betula glandulosa, a common North American shrub species, we evaluated the relative sensitivity of each plant part to climate variables, and assessed if this sensitivity is consistent across three different types of environments in northwestern Québec, Canada (terrace, hilltop and snowbed)...
January 20, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28107768/arabidopsis-protein-s-acyl-transferase4-mediates-root-hair-growth
#17
Zhi-Yuan Wan, Sen Chai, Fu-Rong Ge, Qiang-Nan Feng, Yan Zhang, Sha Li
Polar growth of root hairs is critical for plant survival and necessitates fine-tuned ROP signaling. Multiple ROP regulators participate in root hair growth. However, protein S-acyl transferases (PATs), mediating the S-acylation and membrane partitioning of ROPs, are yet to be found. By using a reverse genetic approach, combining fluorescence probes, pharmacological drugs, site-directed mutagenesis, and genetic analysis with related root-hair mutants, we have identified and characterized an Arabidopsis PAT, which may be responsible for ROP2 S-acylation in root hairs...
January 20, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28107733/glycine-increases-cold-tolerance-in-rice-via-the-regulation-of-n-uptake-physiological-characteristics-and-photosynthesis
#18
Cao Xiaochuang, Zhong Chu, Zhu Lianfeng, Zhang Junhua, Sajid Hussain, Wu Lianghuan, Jin Qianyu
To investigate the response of rice growth and photosynthesis to different nitrogen (N) sources under cold stress, hydroponic cultivation of rice was done in greenhouse, with glycine, ammonium, and nitrate as the sole N sources. The results demonstrate that exposure to low temperature reduced the rice biomass and leaf chlorophyll content, but their values in the glycine-treated plants were significantly higher than in the ammonium- and nitrate-treated plants. This might be attributed to the higher N uptake rate and root area and activity in the glycine-treated plants...
January 12, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107732/comparative-analysis-of-polyamine-metabolism-in-wheat-and-maize-plants
#19
Gabriella Szalai, Katalin Janda, Éva Darkó, Tibor Janda, Violeta Peeva, Magda Pál
In the present work changes in polyamine contents were investigated after various hydroponic polyamine treatments (putrescine, spermidine and spermine at 0.1, 0.3 and 0.5 mM concentrations) in two different crop species, wheat and maize. In contrast to putrescine, higher polyamines (spermidine and spermine) induced concentration-dependent oxidative damage in both crops, resulting in decreased biomass. The unfavourable effects of polyamines were more pronounced in the roots, and maize was more sensitive than wheat...
January 12, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28107731/natural-amelioration-of-zinc-oxide-nanoparticle-toxicity-in-fenugreek%C3%A2-trigonella-foenum-gracum-by-arbuscular-mycorrhizal-glomus-intraradices-secretion-of-glomalin
#20
Narges Ghasemi Siani, Seyfollah Fallah, Lok Raj Pokhrel, Ali Rostamnejadi
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g(-1))...
January 3, 2017: Plant Physiology and Biochemistry: PPB
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