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https://www.readbyqxmd.com/read/28446006/trending-speculations-of-tumor-initiating-cells-in-squamous-cell-cancers-of-head-and-neck
#1
REVIEW
Wasim Kamate, Rajendra Baad, Nupura Vibhute, Uzma Belgaumi, Vidya Kadashetti, Sushma Gugwad
Tumor-initiating cells are a diminutive subpopulation of stem cells that have ability of long term self-renewal and generation of varied traits of tumor cell population. Understanding the concept of tumor-initiating cells may have a great implicative intimation for our comprehension of cancer pathobiology and for the delineation of new therapies directed towards these stem cells. The present review is an endeavor to conceptualize the role of tumor-initiating cells in the Squamous Cell Cancers (SCC) of head and neck, their role in tumorigenesis and the possible supplementary approach in the latest treatment modalities...
April 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28446002/effects-of-fungal-lentinussajor-caju-treated-oil-palm-frond-on-performance-and-carcass-characteristics-in-finishing-goats
#2
Pin Chanjula, Vasun Petcharat, Anusorn Cherdthong
OBJECTIVE: This experiment was conducted to investigate the effects of fungal treated oil palm fronds (FTOPF) on performance, carcass traits, meat quality, and muscle chemical composition. METHODS: Eighteen growing crossbred male goats (Thai Native×Anglo Nubian) with 18.7±2.0 kg of initial body weight (BW) were stratified and blocked by BW in a randomized complete block design. Three diets containing 30% of oil palm fronds (OPF) either untreated (UOPF) or treated with Lentinussajor-caju (FTOPF) with or without urea (FTOPFU) were used as roughage sources in total mixed rations (TMRs)...
June 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28446001/a-post-genome-wide-association-study-validating-the-association-of-the-glycophorin-c-gene-with-serum-hemoglobin-level-in-pig
#3
Yang Liu, Zhengzheng Hu, Chen Yang, Shiwei Wang, Wenwen Wang, Qin Zhang
OBJECTIVE: This study aimed to validate the statistical evidence from the genome-wide association study (GWAS) as true-positive and to better understand the effects of the glycophorin C (GYPC) gene on serum hemoglobin traits. METHODS: Our initial GWAS revealed the presence of two single nucleotide polymorphisms (SNPs) (ASGA0069038 and ALGA0084612) for the hemoglobin concentration trait (HGB) in the 2.48 Mb region of SSC15. From this target region, GYPC was selected as a promising gene that associated with serum HGB traits in pigs...
May 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28445780/mitochondrial-ribosomes-in-cancer
#4
REVIEW
Hyun-Jung Kim, Priyanka Maiti, Antoni Barrientos
Mitochondria play fundamental roles in the regulation of life and death of eukaryotic cells. They mediate aerobic energy conversion through the oxidative phosphorylation (OXPHOS) system, and harbor and control the intrinsic pathway of apoptosis. As a descendant of a bacterial endosymbiont, mitochondria retain a vestige of their original genome (mtDNA), and its corresponding full gene expression machinery. Proteins encoded in the mtDNA, all components of the multimeric OXPHOS enzymes, are synthesized in specialized mitochondrial ribosomes (mitoribosomes)...
April 23, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28445722/genomic-analyses-reveal-the-influence-of-geographic-origin-migration-and-hybridization-on-modern-dog-breed-development
#5
Heidi G Parker, Dayna L Dreger, Maud Rimbault, Brian W Davis, Alexandra B Mullen, Gretchen Carpintero-Ramirez, Elaine A Ostrander
There are nearly 400 modern domestic dog breeds with a unique histories and genetic profiles. To track the genetic signatures of breed development, we have assembled the most diverse dataset of dog breeds, reflecting their extensive phenotypic variation and heritage. Combining genetic distance, migration, and genome-wide haplotype sharing analyses, we uncover geographic patterns of development and independent origins of common traits. Our analyses reveal the hybrid history of breeds and elucidate the effects of immigration, revealing for the first time a suggestion of New World dog within some modern breeds...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445652/identification-of-quantitative-trait-loci-underlying-seed-protein-content-of-soybean-including-main-epistatic-and-qtl-%C3%A3-environment-effects-in-different-regions-of-northeast-china
#6
Weili Teng, Wen Li, Q I Zhang, Depeng Wu, Xue Zhao, Haiyan Li, Yingpeng Han, Wenbin Li
The objective here was to identify QTL, their epistatic effects and QTLs x environments interaction underlying soybean protein content (PC). The mapping population, consisted of 129 recombinant inbred lines (RILs), was created by crossing 'Dongnong46' and 'L-100'. Phenotypic data of the parents and RILs were collected for four years in three locations of Heilongjiang Province of China. A total of 213 simple sequence repeat markers were used to construct a genetic linkage map. Eight QTLs, located on seven chromosomes (Chr), were identified to be associated with PC among the ten tested environments...
April 26, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28445522/revealing-phenotype-associated-functional-differences-by-genome-wide-scan-of-ancient-haplotype-blocks
#7
Ritsuko Onuki, Rui Yamaguchi, Tetsuo Shibuya, Minoru Kanehisa, Susumu Goto
Genome-wide scans for positive selection have become important for genomic medicine, and many studies aim to find genomic regions affected by positive selection that are associated with risk allele variations among populations. Most such studies are designed to detect recent positive selection. However, we hypothesize that ancient positive selection is also important for adaptation to pathogens, and has affected current immune-mediated common diseases. Based on this hypothesis, we developed a novel linkage disequilibrium-based pipeline, which aims to detect regions associated with ancient positive selection across populations from single nucleotide polymorphism (SNP) data...
2017: PloS One
https://www.readbyqxmd.com/read/28445514/the-complexity-underlying-invasiveness-precludes-the-identification-of-invasive-traits-a-comparative-study-of-invasive-and-non-invasive-heterocarpic-atriplex-congeners
#8
Jana Doudová, Jan Douda, Bohumil Mandák
Heterocarpy enables species to effectively spread under unfavourable conditions by producing two or more types of fruit differing in ecological characteristics. Although it is frequent in annuals occupying disturbed habitats that are vulnerable to invasion, there is still a lack of congeneric studies addressing the importance of heterocarpy for species invasion success. We compared two pairs of heterocarpic Atriplex species, each of them comprising one invasive and one non-invasive non-native congener. In two common garden experiments, we (i) simulated the influence of different levels of nutrients and population density on plants grown from different types of fruits and examined several traits that are generally positively associated with invasion success, and (ii) grew plants in a replacement series experiment to evaluate resource partitioning between them and to compare their competitive ability...
2017: PloS One
https://www.readbyqxmd.com/read/28445505/dominance-of-an-alien-shrub-rhus-typhina-over-a-native-shrub-vitex-negundo-var-heterophylla-under-variable-water-supply-patterns
#9
Ning Du, Xiangfeng Tan, Qiang Li, Xiao Liu, Wenxin Zhang, Renqing Wang, Jian Liu, Weihua Guo
Temporal heterogeneity of a resource supply can have a profound effect on the interactions between alien and native plant species and their potential invasiveness. Precipitation patterns may be variable and result in a higher heterogeneity of water supply with global climate change. In this study, an alien shrub species, Rhus typhina, introduced to China from North America and a native shrub species, Vitex negundo var. heterophylla, were grown in monoculture and mixed culture under different water supply regimes, with four levels of water supply frequencies but with a constant level of total supplied water...
2017: PloS One
https://www.readbyqxmd.com/read/28445464/burgess-shale-fossils-illustrate-the-origin-of-the-mandibulate-body-plan
#10
Cédric Aria, Jean-Bernard Caron
Retracing the evolutionary history of arthropods has been one of the greatest challenges in biology. During the past decade, phylogenetic analyses of morphological and molecular data have coalesced towards the conclusion that Mandibulata, the most diverse and abundant group of animals, is a distinct clade from Chelicerata, in that its members possess post-oral head appendages specialized for food processing, notably the mandible. The origin of the mandibulate body plan, however, which encompasses myriapods, crustaceans and hexapods, has remained poorly documented...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445427/small-rna-pathways-that-protect-the-somatic-genome
#11
REVIEW
Seogang Hyun
Transposable elements (TEs) are DNA elements that can change their position within the genome, with the potential to create mutations and destabilize the genome. As such, special molecular systems have been adopted in animals to control TE activity in order to protect the genome. PIWI proteins, in collaboration with PIWI-interacting RNAs (piRNAs), are well known to play a critical role in silencing germline TEs. Although initially thought to be germline-specific, the role of PIWI-piRNA pathways in controlling TEs in somatic cells has recently begun to be explored in various organisms, together with the role of endogenous small interfering RNAs (endo-siRNAs)...
April 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28445261/behavior-characteristics-of-the-attention-network-of-military-personnel-with-high-and-low-trait-anxiety
#12
Yu Pan, Wenpeng Cai, Wei Dong, Jie Xiao, Jin Yan, Qi Cheng
Converging evidence reveals significant increase in both state anxiety and trait anxiety during the past 2 decades among military servicemen and servicewomen in China. In the present study, we employed the Chinese version of the State-trait Anxiety Inventory (STAI) to examine trait and state anxiety in Chinese military servicemen and servicewomen. We further evaluated orienting, alerting and execution inhibition using the attention network test.Healthy military servicemen and servicewomen were recruited for the present study...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444963/the-influence-of-frontal-alpha-asymmetry-on-the-processing-of-approach-and-withdrawal-related-stimuli-a-multichannel-psychophysiology-study
#13
Dirk Adolph, Michael von Glischinski, André Wannemüller, Jürgen Margraf
The approach-withdrawal model of hemispheric activation suggests that left frontal cortical areas mediate approach, while right frontal cortical areas mediate withdrawal motivation. Within this framework, the present study investigates the association of frontal cortical asymmetry with attentional and emotional responses toward approach- and withdrawal-related emotional stimuli. Resting frontal asymmetry was measured from 43 students before they passively viewed negative, neutral, and positive emotional pictures...
April 26, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28444789/effect-of-dietary-supplementation-of-hemp-seed-cannabis-sativa-l-on-meat-quality-and-egg-fatty-acid-composition-of-japanese-quail-coturnix-coturnix-japonica
#14
H Yalcin, Y Konca, F Durmuscelebi
This study was conducted in two separate experiments. Experiment I was conducted to investigate the effects of hemp seed (HS) on meat quality traits, and experiment II was designed to determine egg fatty acid (FA) composition in Japanese quail (Coturnix coturnix japonica). In experiment I and experiment II treatments, groups were as follows: (i) control (not included HS0), (ii) 5% HS inclusion to diets, (iii) 10% HS inclusion to diets and (iv) 20% HS inclusion to diets. In experiment I, a total of 192 7-day-old-quail were fed with HS diets for 5 weeks, and end of the experiment I, a total of 64 quail (16 each) slaughtered and meat samples were analysed for meat colour, pH, cooking and thawing loss and FA composition...
April 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28444737/digest-know-your-poison-predictable-molecular-changes-confer-toxin-resistance-in-snakes
#15
Kalina T J Davies
The repeated independent evolution of similar features in divergent lineages, a process known as convergent evolution, has long been a source of fascination for both naturalists and evolutionary biologists. Until recently, this active area of research had been focused principally on the evolution of physical characteristics associated with novel traits (e.g. the independent evolution of wings in birds, bats and pterosaurs). This article is protected by copyright. All rights reserved.
April 26, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28444615/polygenic-study-of-endurance-associated-genetic-markers-ace-i-d-actn3-arg-r-577ter-x-ckmm-a-g-ncoi-and-enos-glu-g-298asp-t-in-male-gorkha-soldiers
#16
Seema Malhotra, Kiran Preet, Arvind Tomar, Shweta Rawat, Sayar Singh, Inderjeet Singh, L Robert Varte, Tirthankar Chatterjee, M S Pal, Soma Sarkar
BACKGROUND: Gorkhas, a sub-mountainous population of the Himalayan region, are known for strength and bravery. In the present study when "Gorkha" is used without brackets, we are mentioning Gorkhas of Tibeto-Burman origin. Physical capability, strength and endurance are important components of fitness associated with genetic traits. The aim of this study was to examine the endurance potential of male Gorkha soldiers, based on endurance-related genetic markers ACE I/D, ACTN3 Arg (R)577Ter(X), CKMM A/G NcoI and eNOS Glu(G)298Asp(T)...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28444487/the-anxiety-level-of-caregivers-of-neurological-patients-with-dysphagia
#17
Selen Serel Arslan, Numan Demir, A Ayşe Karaduman
We aimed to investigate anxiety level of caregivers of neurological patients with dysphagia, and the relationship of patient-related factors to anxiety level of dysphagia caregivers. A total of 103 adult neurological patients with dysphagia (study group), 30 without dysphagia (control group), and their primary caregivers were included. Types of feeding, condition of dependency in eating and drinking, dysphagia duration, and history of previous dysphagia treatment were recorded for study group. In study group, the Turkish version of the Eating Assessment Tool-10 (T-EAT-10) was used to determine dysphagia symptom severity...
April 25, 2017: Dysphagia
https://www.readbyqxmd.com/read/28444412/biochemical-and-genetic-analyses-of-n-metabolism-in-maize-testcross-seedlings-1-leaves
#18
Ignacio Trucillo Silva, Hari Kishan R Abbaraju, Lynne P Fallis, Hongjun Liu, Michael Lee, Kanwarpal S Dhugga
Aside from the identification of 32 QTL for N metabolism in the seedling leaves of a maize testcross population, alanine aminotransferase was found to be a central enzyme in N assimilation. Excessive application of nitrogen (N) fertilizer to grow commercial crops like maize is a cause of concern because of the runoff of excess N into streams and rivers. Breeding maize with improved N use efficiency (NUE) would reduce environmental pollution as well as input costs for the farmers. An understanding of the genetics underlying N metabolism is key to breeding for NUE...
April 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28444397/advancing-the-efficiency-and-efficacy-of-patient-reported-outcomes-with-multivariate-computer-adaptive-testing
#19
Scott Morris, Mike Bass, Mirinae Lee, Richard E Neapolitan
Objective: : The Patient Reported Outcomes Measurement Information System (PROMIS) initiative developed an array of patient reported outcome (PRO) measures. To reduce the number of questions administered, PROMIS utilizes unidimensional item response theory and unidimensional computer adaptive testing (UCAT), which means a separate set of questions is administered for each measured trait. Multidimensional item response theory (MIRT) and multidimensional computer adaptive testing (MCAT) simultaneously assess correlated traits...
March 11, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28444382/xylem-traits-leaf-longevity-and-growth-phenology-predict-growth-and-mortality-response-to-defoliation-in-northern-temperate-forests
#20
Jane R Foster
Defoliation outbreaks are biological disturbances that alter tree growth and mortality in temperate forests. Trees respond to defoliation in many ways; some recover rapidly, while others decline gradually or die. Functional traits such as xylem anatomy, growth phenology or non-structural carbohydrate (NSC) storage could explain these responses, but idiosyncratic measures used by defoliation studies have frustrated efforts to generalize among species. Here, I test for functional differences with published growth and mortality data from 37 studies, including 24 tree species and 11 defoliators from North America and Eurasia...
April 21, 2017: Tree Physiology
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