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https://www.readbyqxmd.com/read/29783107/effect-of-cd-on-growth-physiological-response-cd-subcellular-distribution-and-chemical-forms-of-koelreuteria-paniculata
#1
Lan Peng Yang, Jian Zhu, Ping Wang, Jing Zeng, Rong Tan, Yu Zhong Yang, Zhi Ming Liu
Koelreuteria paniculata were cultivated in nutrient solution with different concentrations of Cd (0, 50, 150, 250 and 500 µM) and sampled after 90 days. The resistance, translocation, accumulation and stress responses in Koelreuteria paniculata were investigated by hydroponic experiments. The results showed that Koelreuteria paniculata is an efficient Cd excluder that can tolerate high concentrations of Cd (up to 150-250 µM of Cd). The concentration of Cd never exceeds 5 ppm in leaves and 10 ppm in roots...
May 18, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29782535/mycobacterium-tuberculosis-specific-cd4-and-cd8-t-cells-differ-in-their-capacity-to-recognize-infected-macrophages
#2
Jason D Yang, Daniel Mott, Rujapak Sutiwisesak, Yu-Jung Lu, Fiona Raso, Britni Stowell, Greg Hunter Babunovic, Jinhee Lee, Steve M Carpenter, Sing Sing Way, Sarah M Fortune, Samuel M Behar
Containment of Mycobacterium tuberculosis (Mtb) infection requires T cell recognition of infected macrophages. Mtb has evolved to tolerate, evade, and subvert host immunity. Despite a vigorous and sustained CD8+ T cell response during Mtb infection, CD8+ T cells make limited contribution to protection. Here, we ask whether the ability of Mtb-specific T cells to restrict Mtb growth is related to their capacity to recognize Mtb-infected macrophages. We derived CD8+ T cell lines that recognized the Mtb immunodominant epitope TB10...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29781021/dynamical-crossover-of-water-confined-within-the-amphiphilic-nanocores-of-aggregated-amyloid-%C3%AE-peptides
#3
Prabir Khatua, Sanjoy Bandyopadhyay
It is believed that the self-assembly of amyloid beta (Aβ) peptides in the brain is the cause of Alzheimer's disease. Atomistic molecular dynamics simulations of aqueous solutions of Aβ protofilaments of different sizes at room temperature have been carried out to explore the dynamic properties of water confined within the core and at the exterior surface of the protofilaments. Attempts have been made to understand how the non-uniform distortion of the protofilaments associated with their structural crossover influences the diffusivity and the hydrogen bonding environment of the confined water molecules...
May 21, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29780356/physiological-and-molecular-mechanisms-of-methionine-restriction
#4
REVIEW
Mary Neslund Latimer, Khalid Walid Freij, Beth M Cleveland, Peggy R Biga
Methionine restriction (MR) has been studied extensively over the last 25 years for its role in altering metabolic hallmarks of disease. Animals subjected to MR, display changes in metabolic flexibility demonstrated by increases in energy expenditure, glucose tolerance, and lifespan. These changes have been well characterized in a number of model systems and significant progress has been made in understanding how hepatic fibroblast growth factor 21 links MR to several components of its metabolic phenotype...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29779902/molecular-genetics-and-metabolism-special-edition-diagnosis-diagnosis-and-prognosis-of-mucopolysaccharidosis-iva
#5
REVIEW
Hira Peracha, Kazuki Sawamoto, Lauren Averill, Heidi Kecskemethy, Mary Theroux, Mihir Thacker, Kyoko Nagao, Christian Pizarro, William Mackenzie, Hironori Kobayashi, Seiji Yamaguchi, Yasuyuki Suzuki, Kenji Orii, Tadao Orii, Toshiyuki Fukao, Shunji Tomatsu
Mucopolysaccharidosis IVA (MPS IVA, Morquio A syndrome) is an autosomal recessive disorder caused by the deficiency of N-acetylgalactosamine-6-sulfate sulfatase. Deficiency of this enzyme leads to the accumulation of specific glycosaminoglycans (GAGs), chondroitin-6-sulfate (C6S) and keratan sulfate (KS), which are mainly synthesized in the cartilage. Therefore, the substrates are stored primarily in the cartilage and its extracellular matrix (ECM), leading to a direct impact on bone development and successive systemic skeletal spondylepiphyseal dysplasia...
May 15, 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29779414/the-effect-of-intrauterine-growth-on-leukocyte-telomere-length-at-birth
#6
Alketa Stefa, Agaristi Lamprokostopoulou, Despina D Briana, Anna Kontogeorgou, Ifigeneia Papageorgiou, Ariadne Malamitsi-Puchner, Ourania Tsitsilonis, Sarantis Gagos, Evangelia Charmandari
OBJECTIVE: Telomeres are specialized nucleoprotein structures located at the ends of chromosomes, which play a crucial role in genomic stability. Telomere shortening has been proposed as a biomarker for the onset of age-related diseases. This study aimed to determine whether restricted or increased intrauterine growth affects leukocyte telomere length (LTL) at birth. MATERIAL AND METHODS: One hundred sixty five (n = 165) full-term neonates participated in the study...
May 20, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29779040/association-between-unexplained-thickened-nuchal-translucency-and-adverse-pregnancy-outcomes
#7
Santee Tiyatha, Sirinart Sirilert, Ratanaporn Sekararithi, Theera Tongsong
OBJECTIVE: To determine the association between unexplained increased nuchal translucency (INT) and adverse pregnancy outcomes. PATIENTS AND METHODS: The prospective database of our fetal down screening project was accessed to retrieve the records with NT measurement and complete follow-up. Pregnancies with pre-existing medical diseases, fetal chromosomal or structural abnormalities were excluded. The selected pregnancies were classified into the INT groups (> 95th percentile), the normal (< 95th percentile) group...
May 19, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29779018/common-and-unique-transcriptional-responses-to-dietary-restriction-and-loss-of-insulin-receptor-substrate-1-irs1-in-mice
#8
Melissa M Page, Eugene F Schuster, Manikhandan Mudaliar, Pawel Herzyk, Dominic J Withers, Colin Selman
Dietary restriction (DR) is the most widely studied non-genetic intervention capable of extending lifespan across multiple taxa. Modulation of genes, primarily within the insulin/insulin-like growth factor signalling (IIS) and the mechanistic target of rapamycin (mTOR) signalling pathways also act to extend lifespan in model organisms. For example, mice lacking insulin receptor substrate-1 (IRS1) are long-lived and protected against several age-associated pathologies. However, it remains unclear how these particular interventions act mechanistically to produce their beneficial effects...
May 20, 2018: Aging
https://www.readbyqxmd.com/read/29778808/maternal-treatment-with-a-placental-targeted-antioxidant-mitoq-impacts-offspring-cardiovascular-function-in-a-rat-model-of-prenatal-hypoxia
#9
Mais M Aljunaidy, Jude S Morton, Raven Kirschenman, Tom Phillips, C Patrick Case, Christy-Lynn M Cooke, Sandra T Davidge
Intrauterine growth restriction, a common consequence of prenatal hypoxia, is a leading cause of fetal morbidity and mortality with a significant impact on population health. Hypoxia may increase placental oxidative stress and lead to an abnormal release of placental-derived factors, which are emerging as potential contributors to developmental programming. Nanoparticle-linked drugs are emerging as a novel method to deliver therapeutics targeted to the placenta and avoid risking direct exposure to the fetus...
May 17, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29778472/effects-of-ad-libitum-milk-replacer-feeding-and-butyrate-supplementation-on-behavior-immune-status-and-health-of-holstein-calves-in-the-postnatal-period
#10
C Gerbert, D Frieten, C Koch, G Dusel, K Eder, T Stefaniak, J Bajzert, P Jawor, A Tuchscherer, H M Hammon
Animal welfare in dairy calf husbandry depends on calf rearing and is probably improved by intensive milk feeding programs. In addition, butyrate supplementation in milk replacer (MR) stimulates postnatal growth and may affect the immune system in calves. We have investigated the combined effects of ad libitum MR feeding and butyrate supplementation on feeding behavior, health, and the immune responses in calves. Holstein calves (n = 64) were examined from birth until wk 11 of age. Calves received MR either ad libitum (Adl) or restrictively (Res) with (AdlB+, ResB+) or without (AdlB-, ResB-) 0...
May 16, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29778319/anti-infective-biomaterials-with-surface-decorated-tachyplesin-i
#11
Qiong Xue, Xiao-Bin Liu, Yeh-Hsing Lao, Lin-Ping Wu, Dong Wang, Zhen-Qiang Zuo, Jun-Yu Chen, Jing Hou, Yuan-Yuan Bei, Xue-Fei Wu, Kam W Leong, Hua Xiang, Jing Han
Implants decorated with antimicrobial peptides (AMPs) can prevent infection and reduce the risk of creating antibiotic resistance. Yet the restricted mobility of surficial AMP often compromises its activity. Here, we report a simple but effective strategy to allow a more flexible display of AMP on the biomaterial surface and demonstrate its efficacy for wound healing. The AMP, tachyplesin I (Tac), is tagged with the polyhydroxyalkanoate-granule-associated protein (PhaP) and immobilized on haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) via hydrophobic interaction...
May 9, 2018: Biomaterials
https://www.readbyqxmd.com/read/29778069/differential-correlations-between-maternal-hair-levels-of-tobacco-and-alcohol-with-fetal-growth-restriction-clinical-subtypes
#12
Sally Sabra, Ebba Malmqvist, Laura Almeida, Eduard Gratacos, Maria Dolores Gomez Roig
Maternal exposure to tobacco and alcohol is a known cause, among others, for fetal growth restriction (FGR). Clinically, FGR can be subclassified into two forms: intrauterine growth restriction (IUGR) and small for gestational age (SGA), based on the severity of the growth retardation, and abnormal uterine artery Doppler or cerebro-placental ratio. This study aimed at investigating any differential correlation between maternal exposures to these toxins with the two clinical forms of FGR. Therefore, a case-control study was conducted in Barcelona, Spain...
January 4, 2018: Alcohol
https://www.readbyqxmd.com/read/29778023/the-growth-and-lipid-accumulation-of-scenedesmus-quadricauda-during-batch-mixotrophic-heterotrophic-cultivation-using-xylose-as-a-carbon-source
#13
Mingming Song, Haiyan Pei
To overcome the bottlenecks of high cost and low production yields that restrict the commercial production of microalgae biodiesel, the use of xylose was evaluate by Scenedesmus quadricauda FACHB-1297, which was shown to be capable of mixotrophic and heterotrophic growth and lipid production on xylose, rich in the waste streams from pulp and paper industry, with increases in lipid productivities of 35.8-fold (mixotrophic) and 9.2-fold (heterotrophic) in comparison to photoautotrophic lipid yields. Five doses of xylose were tested to determine the effects and mechanisms of the carbon source on microalgae in mixotrophic mode...
May 10, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29776805/cancer-biology-and-survival-analysis-in-cancer-trials-restricted-mean-survival-time-analysis-versus-hazard-ratios
#14
R P A'Hern
Hazard ratios are commonly used when comparing survival between two groups and make the assumption that the relative event rates do not change markedly during follow-up, i.e. that event rates are proportional. However, there is currently debate about the use of the proportional hazards assumption to summarise the treatment effect in survival analysis compared with restricted mean survival time (RMST) analysis, particularly in cancer trials. In many situations it is unrealistic to assume that relative event rates in two groups will be proportional throughout follow-up and, hence, RMST analysis, which does not make this assumption, may be preferable...
May 15, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29776046/radial-restricted-solid-on-solid-and-etching-interface-growth-models
#15
Sidiney G Alves
An approach to generate radial interfaces is presented. A radial network recursively obtained is used to implement discrete model rules designed originally for the investigation in flat substrates. I used the restricted solid-on-solid and etching models as to test the proposed scheme. The results indicate the Kardar, Parisi, and Zhang conjecture is completely verified leading to a good agreement between the interface radius fluctuation distribution and the Gaussian unitary ensemble. The evolution of the radius agrees well with the generalized conjecture, and the two-point correlation function exhibits also a good agreement with the covariance of the Airy_{2} process...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775821/vermiremediation-of-metal-loid-s-via-eichornia-crassipes-phytomass-extraction-a-sustainable-technique-for-plant-amelioration
#16
Arnab Majumdar, Anil Barla, Munish Kumar Upadhyay, Dibyarpita Ghosh, Punarbasu Chaudhuri, Sudhakar Srivastava, Sutapa Bose
Eichhornia crassipes (water hyacinth), imparts deficiency of soluble arsenic and other toxic metal (loid)s through rhizofiltration and phytoaccumulation. Without proper management strategy, this phytoremediation of metal (loid)s might fail and get reverted back to the environment, contaminating the nearby water bodies. This study, focused on bio-conversion of phytoremediating hyacinths, spiked with 100 times and greater arsenic, lead and cadmium concentrations than the average water contamination, ranging in 58...
May 15, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29775476/maternal-asthma-is-associated-with-increased-risk-of-perinatal-mortality
#17
Mari Kemppainen, Anna-Maria Lahesmaa-Korpinen, Paula Kauppi, Martti Virtanen, Suvi M Virtanen, Riitta Karikoski, Mika Gissler, Turkka Kirjavainen
BACKGROUND: Asthma is the most common chronic disease during pregnancy and it may have influence on pregnancy outcome. OBJECTIVES: Our goal was to assess the association between maternal asthma and the perinatal risks as well as possible effects of asthma medication. METHODS: The study was based on a nationwide Finnish register-based cohort between the years 1996 and 2012 in the Drug and Pregnancy Database. The register data comprised 962 405 singleton live and stillbirths, 898 333 (93...
2018: PloS One
https://www.readbyqxmd.com/read/29774513/coordinated-effects-of-lead-toxicity-and-nutrient-deprivation-on-growth-oxidative-status-and-elemental-composition-of-primed-and-non-primed-rice-seedlings
#18
Fahad Khan, Saddam Hussain, Mohsin Tanveer, Sehrish Khan, Hafiz Athar Hussain, Biland Iqbal, Mingjian Geng
Rice crop is highly susceptible to the toxic levels of lead (Pb) during early growth stages. Moreover, a sufficient availability of mineral nutrients is critical for survival of plants particularly under stressful conditions. An experiment was carried out to unravel the coordinated effects of Pb stress (1-mM PbCl2 ) and different nutrient treatments (sufficient nutrient supply, nitrogen (N) deprivation, phosphorus (P) deprivation, and potassium (K) deprivation) on morphological growth, reactive oxygen species (ROS), antioxidants, and nutrient status in primed and non-primed rice seedlings...
May 17, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29774347/effect-of-humic-acid-bacterial-exudates-on-sorption-desorption-interactions-of-90-sr-with-brucite
#19
Hollie Ashworth, Liam Abrahamsen-Mills, Nick Bryan, Lynn Foster, Jonathan R Lloyd, Simon Kellet, Sarah Heath
One of the nuclear fuel storage ponds at Sellafield (United Kingdom) is open to the air, and has contained a significant inventory of corroded magnox fuel and sludge for several decades. As a result, some fission products have also been released into solution. 90Sr is known to constitute a small mass of the radionuclides present in the pond, but due to its solubility and activity, it is at risk of challenging effluent discharge limits. The sludge is predominantly composed of brucite (Mg(OH)2), and organic molecules are known to be present in the pond liquor with occasional algal blooms restricting visibility...
May 18, 2018: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/29770755/body-composition-during-early-infancy-and-developmental-progression-from-1-to-5-years-of-age-the-infant-anthropometry-and-body-composition-iabc-cohort-study-among-ethiopian-children
#20
Mubarek Abera, Markos Tesfaye, Bitiya Admassu, Charlotte Hanlon, Christian Ritz, Rasmus Wibaek, Kim F Michaelsen, Henrik Friis, Jonathan C Wells, Gregers S Andersen, Tsinuel Girma, Pernille Kæstel
Early nutrition and growth have been found to be important early exposures for later development. Studies of crude growth in terms of weight and length/height, however, cannot elucidate how body composition (BC) might mediate associations between nutrition and later development. In this study, we aimed to examine the relation between fat mass (FM) or fat-free mass (FFM) tissues at birth and their accretion during early infancy, and later developmental progression. In a birth cohort from Ethiopia, 455 children who have BC measurement at birth and 416 who have standardised rate of BC growth during infancy were followed up for outcome variable, and were included in the statistical analysis...
June 2018: British Journal of Nutrition
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