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https://www.readbyqxmd.com/read/28649414/characterisation-and-comparison-of-bacterial-communities-on-reverse-osmosis-membranes-of-a-full-scale-desalination-plant-by-bacterial-16s-rrna-gene-metabarcoding
#1
Veena Nagaraj, Lucy Skillman, Goen Ho, Dan Li, Alexander Gofton
Microbiomes of full-scale seawater reverse osmosis membranes are complex and subject to variation within and between membrane units. The pre-existing bacterial communities of unused membranes before operation have been largely ignored in biofouling studies. This study is novel as unused membranes were used as a critical benchmark for comparison. Fouled seawater reverse osmosis membrane biofilm communities from an array of autopsied membrane samples, following a 7-year operational life-span in a full-scale desalination plant in Western Australia, were characterised by 16S rRNA gene metabarcoding using the bacterial primers 515F and 806R...
2017: NPJ Biofilms and Microbiomes
https://www.readbyqxmd.com/read/28648868/immune-modulating-effects-in-mouse-dendritic-cells-of-lactobacilli-and-bifidobacteria-isolated-from-individuals-following-omnivorous-vegetarian-and-vegan-diets
#2
Diomira Luongo, Lucia Treppiccione, Alida Sorrentino, Ilario Ferrocino, Silvia Turroni, Monica Gatti, Raffaella Di Cagno, Yolanda Sanz, Mauro Rossi
Lactobacilli and bifidobacteria play a primary role in modulation of gut immunity. By considering that microbiota composition depends on various factors, including diet, we asked whether functional differences could characterize faecal populations of lactobacilli and bifidobacteria isolated from individuals with different dietary habits. 155 healthy volunteers who followed omnivorous, ovo-lacto-vegetarian or vegan diets were recruited at four Italian centres (Turin, Parma, Bologna and Bari). Faecal samples were collected; lactobacilli and bifidobacteria were isolated on selective media and their immunomodulatory activity was tested in mouse dendritic cells (DCs)...
June 22, 2017: Cytokine
https://www.readbyqxmd.com/read/28646941/postwash-total-motile-sperm-count-should-it-be-included-as-a-standard-male-infertility-work-up
#3
Khaled Madbouly, Ahmed Isa, Mohamad Habous, Raed Almannie, Basim Abu-Rafea, Saleh Binsaleh
INTRODUCTION: Pregnancy rates after intrauterine insemination (IUI) varies greatly. We aimed to identify pre and post processing semen analysis parameters that may be predictive of successful pregnancy in couples undergoing IUI. MATERIALS AND METHODS: A retrospective study of the records of all couples underwent IUI for a 2 year period at our infertility center. Different characteristics of female subjects, pre and post processing semen parameters and treatment parameters were compared statistically...
June 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28645283/oocyte-polarized-light-microscopy-assay-of-specific-follicular-fluid-metabolites-and-gene-expression-in-cumulus-cells-as-different-approaches-to-predict-fertilization-efficiency-after-icsi
#4
Alberto Revelli, Stefano Canosa, Loredana Bergandi, Oleksii A Skorokhod, Valentina Biasoni, Andrea Carosso, Angela Bertagna, Milena Maule, Elisabetta Aldieri, Maria Diletta D'Eufemia, Francesca Evangelista, Nicola Colacurci, Chiara Benedetto
BACKGROUND: The complex relationship between oocyte morphology, specific follicular fluid metabolites, gene expression in cumulus granulosa cells, and oocyte competence toward fertilization and embryo development still needs further clarification. METHODS: Forty-six oocytes retrieved from the largest pre-ovulatory follicle of patients undergoing intra-cytoplasmic sperm injection (ICSI) were considered assessing: (a) oocyte morphological characteristics at polarized light microscopy (PLM), (b) specific follicular fluid (FF) metabolites previously suggested to influence oocyte competence (AMH, markers of redox status and of cytotoxicity), (c) transcription of AMH and AMH type II receptor genes in cumulus cells...
June 23, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28644129/anti-cd47-antibodies-induce-phagocytosis-of-live-malignant-b-cells-by-macrophages-via-the-fc-domain-resulting-in-cell-death-by-phagoptosis
#5
Lucy E Métayer, Anna Vilalta, G A Amos Burke, Guy C Brown
When expressed on the surface of cells, CD47 inhibits phagocytosis of these cells by phagocytes. Most human cancers overexpress CD47, and antibodies to CD47 have shown a remarkable ability to clear a range of cancers in animal models. However, the mechanism by which these antibodies cause cancer cell death is unclear. We find that CD47 is expressed on the surface of three B-cell lines from human malignancies: 697 (pre-B-ALL lymphoblasts), Ramos and DG-75 (both mature B-cells, Burkitt's lymphoma), and anti-CD47 antibodies greatly increase the phagocytosis of all three cell line by macrophages...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28642820/intratumorally-injected-pro-inflammatory-allogeneic-dendritic-cells-as-immune-enhancers-a-first-in-human-study-in-unfavourable-risk-patients-with-metastatic-renal-cell-carcinoma
#6
Anna Laurell, Maria Lönnemark, Einar Brekkan, Anders Magnusson, Anna Tolf, Anna Carin Wallgren, Bengt Andersson, Lars Adamson, Rolf Kiessling, Alex Karlsson-Parra
BACKGROUND: Accumulating pre-clinical data indicate that the efficient induction of antigen-specific cytotoxic CD8+ T cells characterizing viral infections is caused by cross-priming where initially infected DCs produce an unique set of inflammatory factors that recruit and activate non-infected bystander DCs. Our DC-based immunotherapy concept is guided by such bystander view and accordingly, we have developed a cellular adjuvant consisting of pre-activated allogeneic DCs producing high levels of DC-recruiting and DC-activating factors...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28641777/role-of-parl-pink1-parkin-pathway-in-adipocyte-differentiation
#7
Ming-Yuh Shiau, Pin-Shen Lee, Ying-Jyun Huang, Ching-Ping Yang, Chiao-Wan Hsiao, Kai-Yun Chang, Huan-Wen Chen, Yih-Hsin Chang
OBJECTIVE: Adipogenesis determines the number of adipocytes which is increased when individuals become obese. Mitochondria undergo remarkable morphological and functional changes during adipogenesis. PTEN-induced kinase 1 (PINK1) is pivotal to maintain mitochondrial homeostasis in neural cells. The present study aimed at investigating effects of PINK1 on adipogenesis and energy metabolism. METHODS: Expression of presenilin associated rhomboid-like protein (PARL), PINK1 and Parkin, as well as the interaction among these proteins was temporally examined during adipogenesis...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28640911/evolution-of-microrna-in-primates
#8
Jennifer C McCreight, Sean E Schneider, Damien B Wilburn, Willie J Swanson
MicroRNA play an important role in post-transcriptional regulation of most transcripts in the human genome, but their evolution across the primate lineage is largely uncharacterized. A particular miRNA can have one to thousands of messenger RNA targets, establishing the potential for a small change in sequence or overall miRNA structure to have profound phenotypic effects. However, the majority of non-human primate miRNA is predicted solely by homology to the human genome and lacks experimental validation. In the present study, we sequenced thirteen species representing a wide range of the primate phylogeny...
2017: PloS One
https://www.readbyqxmd.com/read/28640632/gut-microbiota-nitric-oxide-and-microglia-as-pre-requisites-for-neurodegenerative-disorders
#9
Joyce Ka Yu Tse
Regulating fluctuating endogenous nitric oxide (NO) levels is necessary for proper physiological functions. Aberrant NO pathways are implicated in a number of neurological disorders, including Alzheimer's Disease (AD) and Parkinson's Disease. The mechanism of NO in oxidative and nitrosative stress with pathological consequences involves reactions with reactive oxygen species (e.g. superoxide) to form the highly reactive peroxynitrite, hydrogen peroxide, hypochloride ions and hydroxyl radical. NO levels are typically regulated by endogenous nitric oxide synthases (NOS), and inflammatory iNOS is implicated in the pathogenesis of neurodegenerative diseases, in which elevated NO mediates axonal degeneration and activates cyclooxygenases to provoke neuroinflammation...
June 22, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28637691/settling-the-m-6-a-debate-methylation-of-mature-mrna-is-not-dynamic-but-accelerates-turnover
#10
REVIEW
Nicolle A Rosa-Mercado, Johanna B Withers, Joan A Steitz
Post-transcriptional modification of RNA nucleosides has been implicated as a pivotal regulator of mRNA biology. In this issue of Genes & Development, Ke and colleagues (pp. 990-1006) provide insights into the temporal and spatial distribution of N(6)-methyladenosine (m(6)A) in RNA transcripts by analyzing different subcellular fractions. Using a recently developed biochemical approach for detecting m(6)A, the researchers show that m(6)A methylations are enriched in exons and are added to transcripts prior to splicing...
May 15, 2017: Genes & Development
https://www.readbyqxmd.com/read/28637094/acclimation-responses-to-high-light-by-guazuma-ulmifolia-lam-malvaceae-leaves-at-different-stages-of-development
#11
Anderson Kikuchi Calzavara, Juliana Silva Rocha, Geovana Lourenço, Karina Sanada, Cristiano Medri, Edmilson Bianchini, José Antonio Pimenta, Renata Stolf-Moreira, Halley Caixeta Oliveira
The recomposition of deforested environments requires the prior acclimation of seedlings to full sun in nurseries. Seedlings can overcome excessive light either through the acclimation of pre-existing fully expanded leaves or through the development of new leaves that are acclimated to the new light environment. Here, we compared the acclimation capacity of mature (MatL, fully expanded at the time of transfer) and newly expanded leaves (NewL, expanded after the light shift) of Guazuma ulmifolia Lam. (Malvaceae) seedlings to high light...
June 21, 2017: Plant Biology
https://www.readbyqxmd.com/read/28631249/molecular-characterisation-of-a-novel-isoform-of-hepatic-antimicrobial-peptide-hepcidin-le-hepc-from-leiognathus-equulus-and-analysis-of-its-functional-properties-in-silico
#12
Aishwarya Nair, K S Sruthy, E R Chaithanya, T P Sajeevan, I S Bright Singh, Rosamma Philip
Hepcidin represents a family of cysteine-rich antimicrobial peptides that are mainly expressed in the liver of living organisms. In this study, we have identified and characterised a novel isoform of hepcidin from the common pony fish, Leiognathus equulus (Le-Hepc). A 261-bp fragment cDNA coding for 86 amino acids was obtained. Homologous analysis showed that Le-Hepc belongs to the hepcidin super family and shares sequence identity with other known fish pre-propeptide hepcidin sequences. The ORF encodes for a 24-amino acid (aa) signal peptide coupled to a 36-aa prodomain followed by a 26-aa mature peptide...
June 19, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28630584/time-loss-injuries-in-sub-elite-and-emerging-rugby-league-players
#13
Mark Booth, Rhonda Orr
This study aimed to 1) investigate the incidence and characteristics of injuries in emerging rugby league players; and 2) explore the differences in injury incidence and characteristics between the various sub-elite competitions. An NRL emerging player development squad (n = 34) was observed from the beginning of pre-season until the finish of competition. Time-loss injury was defined as any physical pain or impairment sustained that resulted in players missing a match. Injuries were categorised according to circumstance, incidence, characteristics, playing position and competition level...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28627474/sox9-positive-periosteal-cells-in-fracture-repair-of-the-adult-mammalian-long-bone
#14
Xinjun He, Sofia Bougioukli, Brandon Ortega, Eric Arevalo, Jay R Lieberman, Andrew P McMahon
INTRODUCTION: The phases of fracture healing have been well characterized. However, the exact source and genetic profile of the skeletal progenitors that participate in bone repair is somewhat unclear. Sox9 expression in skeletal elements precedes bone and cartilage formation and a Sox9(+) cell type is retained in the adult periosteum. We hypothesized that Sox9(+) periosteal cells are multipotent skeletal progenitors normally participating in fracture repair. METHODS: To test this hypothesis we used tamoxifen (TM)-mediated lineage tracing of Sox9(+) cells in Sox9CreErt2:Td-Tomato mice...
June 13, 2017: Bone
https://www.readbyqxmd.com/read/28624612/human-mast-cells-present-antigen-to-autologous-cd4-t-cells
#15
Sahar Lotfi-Emran, Brant R Ward, Quang T Le, Andrea L Pozez, Masoud H Manjili, Judith Woodfolk, Lawrence B Schwartz
BACKGROUND: Mast cells (MCs), the primary effector cell of the atopic response, participate in immune defense at host/environment interfaces, yet the mechanisms by which they interact with CD4(+)-T cells has been controversial. OBJECTIVE: We utilize in situ-matured primary human MCs and matched CD4(+)-T cells to diligently assess the ability of MCs to act as antigen-presenting cells. METHODS: We examined mature human skin-derived MCs by flow cytometry for expression of antigen-presenting molecules; for their ability to stimulate CD4(+)-T cells to express CD25 and proliferate when exposed to superantigen or to CMV antigen using matched T cells and MCs from CMV seropositive or seronegative donors; and for uptake of antigens...
June 14, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28624227/efficient-smn-rescue-following-subcutaneous-tricyclo-dna-antisense-oligonucleotide-treatment
#16
Valérie Robin, Graziella Griffith, John-Paul L Carter, Christian J Leumann, Luis Garcia, Aurélie Goyenvalle
Spinal muscular atrophy (SMA) is a recessive disease caused by mutations in the SMN1 gene, which encodes the protein survival motor neuron (SMN), whose absence dramatically affects the survival of motor neurons. In humans, the severity of the disease is lessened by the presence of a gene copy, SMN2. SMN2 differs from SMN1 by a C-to-T transition in exon 7, which modifies pre-mRNA splicing and prevents successful SMN synthesis. Splice-switching approaches using antisense oligonucleotides (AONs) have already been shown to correct this SMN2 gene transition, providing a therapeutic avenue for SMA...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28623727/current-clinical-magnetoencephalography-practice-across-europe-are-we-closer-to-use-meg-as-an-established-clinical-tool
#17
Xavier De Tiège, Daniel Lundqvist, Sándor Beniczky, Stefano Seri, Ritva Paetau
PURPOSE: This comprehensive survey aims at characterizing the current clinical use of magnetoencephalography (MEG) across European MEG centres. METHODS: Forty-four MEG centres across Europe were contacted in May 2015 via personalized e-mail to contribute to survey. The web-based survey was available on-line for 1 month and the MEG centres that did not respond were further contacted to maximize participation. RESULTS: Among the 57% of responders, 12 centres from 10 different countries reported to use MEG for clinical applications...
June 8, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28620771/oviposition-preference-for-young-plants-by-the-large-cabbage-butterfly-pieris-brassicae-does-not-strongly-correlate-with-caterpillar-performance
#18
Minghui Fei, Jeffrey A Harvey, Yi Yin, Rieta Gols
The effects of temporal variation in the quality of short-lived annual plants on oviposition preference and larval performance of insect herbivores has thus far received little attention. This study examines the effects of plant age on female oviposition preference and offspring performance in the large cabbage white butterfly Pieris brassicae. Adult female butterflies lay variable clusters of eggs on the underside of short-lived annual species in the family Brassicaceae, including the short-lived annuals Brassica nigra and Sinapis arvensis, which are important food plants for P...
June 15, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28619007/whole-genome-sequencing-analyses-of-listeria-monocytogenes-that-persisted-in-a-milkshake-machine-for-a-year-and-caused-illnesses-in-washington-state
#19
Zhen Li, Ailyn Pérez-Osorio, Yu Wang, Kaye Eckmann, William A Glover, Marc W Allard, Eric W Brown, Yi Chen
BACKGROUND: In 2015, in addition to a United States multistate outbreak linked to contaminated ice cream, another outbreak linked to ice cream was reported in the Pacific Northwest of the United States. It was a hospital-acquired outbreak linked to milkshakes, made from contaminated ice cream mixes and milkshake maker, served to patients. Here we performed multiple analyses on isolates associated with this outbreak: pulsed-field gel electrophoresis (PFGE), whole genome single nucleotide polymorphism (SNP) analysis, species-specific core genome multilocus sequence typing (cgMLST), lineage-specific cgMLST and whole genome-specific MLST (wgsMLST)/outbreak-specific cgMLST...
June 15, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28612520/regulation-of-itga3-by-the-anti-tumor-mir-199-family-inhibits-cancer-cell-migration-and-invasion-in-head-and-neck-cancer
#20
Keiichi Koshizuka, Toyoyuki Hanazawa, Naoko Kikkawa, Takayuki Arai, Atsushi Okato, Akira Kurozumi, Mayuko Kato, Koji Katada, Yoshitaka Okamoto, Naohiko Seki
For patients with head and neck squamous cell carcinoma (HNSCC), survival rates have not improved due to local recurrence and distant metastasis. Current targeted molecular therapies do not provide a substantial benefit to HNSCC patients. Therefore, it is necessary to use advanced genomic approaches to elucidate the molecular mechanisms underlying the aggressiveness of HNSCC cells. Analysis of our microRNA (miRNA) expression signature by RNA-sequencing showed that the miR-199 family (miR-199a-5p, miR-199a-3p, miR-199b-5p and miR-199b-3p) was significantly reduced in cancer tissues...
June 14, 2017: Cancer Science
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