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https://www.readbyqxmd.com/read/28747347/trim8-negatively-regulates-tlr3-4-mediated-innate-immune-response-by-blocking-trif-tbk1-interaction
#1
Wen Ye, Ming-Ming Hu, Cao-Qi Lei, Qian Zhou, Heng Lin, Ming-Shun Sun, Hong-Bing Shu
TLR-mediated signaling pathways play critical roles in host defense against microbials. However, dysregulation of innate immune and inflammatory responses triggered by TLRs would result in harmful damage to the host. Using a Trim8 gene-knockout mouse model, we show that tripartite motif (TRIM) 8 negatively regulates TLR3- and TLR4-mediated innate immune and inflammatory responses. TRIM8 deficiency leads to increased polyinosinic-polycytidylic acid- and LPS-triggered induction of downstream anti-microbial genes including TNF, Il6, Rantes, and Ifnb, evaluated serum cytokine levels, and increased susceptibility of mice to polyinosinic-polycytidylic acid- and LPS-induced inflammatory death as well as Salmonella typhimurium infection-induced loss of body weight and septic shock...
July 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28745358/cross-talk-between-10-gingerol-and-its-anti-cancerous-potential-a-recent-update
#2
REVIEW
Fang Zhang, Kiran Thakur, Fei Hu, Jian-Guo Zhang, Zhao-Jun Wei
Since time immortal, ginger, as an ancient herb, has been used throughout the world in foods and beverages due to its typical strong and pungent flavor. Besides its use as a spice, it also serves as an excellent source of several bioactive phenolics, including nonvolatile pungent compounds, such as gingerols, paradols, shogaols, and gingerones. Gingerols constitute key ingredients in fresh ginger, with the most abundant being 6-gingerol (6-G), 8-gingerol (8-G), and 10-gingerol (10-G). Many studies have investigated the various valuable pharmacological properties of these ingredients and experimentally verified the mechanistic aspects of their health effects; however, to date, most research on the anti-cancerous activities of gingerols have focused largely on 6-G...
July 26, 2017: Food & Function
https://www.readbyqxmd.com/read/28745280/antimicrobial-properties-of-nanorods-killing-bacteria-via-impalement
#3
Md Iftekhar Hossain, Jarrod Edwards, James Tyler, John Anderson, Supriyo Bandyopadhyay
Silver is known to possess anti-microbial properties that are of chemical origin. It is believed that either Ag atoms bind to thiol groups in bacterial enzymes or Ag(+) ions enter bacterial cells and denature the DNA molecule to kill bacteria. Silver nanorods, however, may kill bacteria by another mechanism: it is possible that the sharp tips of the nanorods puncture bacterial cells and kill bacteria via impalement-a physical mechanism. To test if this can indeed happen, we have compared the anti-microbial properties of silver and CdS nanorods...
August 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28742513/kallistatin-double-edged-role-in-angiogenesis-apoptosis-and-oxidative-stress
#4
Julie Chao, Pengfei Li, Lee Chao
Kallistatin via its two structural elements - an active site and a heparin-binding domain - displays double-edged function in angiogenesis, apoptosis and oxidative stress. First, kallistatin has both anti-angiogenic and pro-angiogenic effects. Kallistatin treatment attenuates angiogenesis and tumor growth in cancer-bearing mice. Kallistatin via its heparinbinding site inhibits angiogenesis by blocking vascular endothelial growth factor (VEGF)- induced growth, migration and adhesion of endothelial cells. Conversely, kallistatin via the active site promotes neovascularization by stimulating VEGF levels in endothelial progenitor cells...
July 26, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28741666/assessment-of-the-potential-of-the-multi-enzyme-producer-bacillus-amyloliquefaciens-us573-as-alternative-feed-additive
#5
Ameny Farhat-Khemakhem, Monia Blibech, Ines Boukhris, Mohamed Makni, Hichem Chouayekh
BACKGROUND: Recently, probiotics have increasingly been used as feed additives in poultry diets as an alternative to antibiotic growth promoters fostering resistance development. RESULTS: This study was aimed at assessing the potential of Bacillus amyloliquefaciens US573 as a direct-fed microbial. The US573 strain was found to be free of harmful enzymatic activities and sensitive to antibiotics. In addition, it showed a good acid and bovine bile tolerance, high adhesion efficacy to chicken enterocytes, and an ability to form biofilms, which may favor its survival and persistence in the animal gastrointestinal tract...
July 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28741151/probiotic-characteristics-of-lactobacillus-curvatus-dn317-a-strain-isolated-from-chicken-ceca
#6
Mohamed Zommiti, Nathalie Connil, Jeannette Ben Hamida, Mounir Ferchichi
The probiotic characteristics of Lactobacillus curvatus DN317, a strain isolated from chicken ceca, were evaluated. This strain was selected for study from the isolated Lactobacillus strains because it has specific anti-microbial activity against Campylobacter jejuni ATCC 33560, Camp. jejuni NCTC 11168, Listeria monocytogenes ATCC 7644, and Bacillus subtilis ATCC 8633. Lact. curvatus DN317 showed an auto-aggregation percentage of 72% and presented the highest co-aggregation with Lact. monocytogenes ATCC 7644 (68%) compared to B...
July 24, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28735315/the-diversity-growth-promoting-abilities-and-anti-microbial-activities-of-bacteria-isolated-from-the-fruiting-body-of-agaricus-bisporus
#7
Quanju Xiang, Lihua Luo, Yuhuan Liang, Qiang Chen, Xiaoping Zhang, Yunfu Gu
Agaricus bisporus plays an important role in ecological processes and is one of the most widely cultivated mushrooms worldwide. Mushroom growth-promoting bacteria have been isolated from casing soil and compost, but microorganisms in the fruiting body have received only a little attention. To get an overview of phylogenetic diversity of microorganisms in the fruiting body of A. bisporus, as well as to screen antimicrobial and mushroom growth-promoting strains, and eventually intensify mushroom production, we isolated and characterized microorganisms from the fruiting body of A...
July 6, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28733762/reconsidering-betaine-as-a-natural-anti-heat-stress-agent-in-poultry-industry-a-review
#8
REVIEW
Muhammad Saeed, Daryoush Babazadeh, Muhammad Naveed, Muhammad Asif Arain, Faiz Ul Hassan, Sun Chao
Betaine is found ubiquitously in plants, animals, microorganisms, and rich dietary sources including seafood, spinach, and wheat bran. The chief physiological role of betaine is to function as a methyl donor and an osmolyte. Betaine also acts as an osmolyte, to maintain the avian's cellular water and ion balance to improve the avian's capacity against heat stress via preventing dehydration and osmotic inactivation. It helps in maintaining the protective osmolytic activity, especially in heat-stressed birds...
July 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28726635/as-cath1-6-novel-cathelicidins-with-potent-antimicrobial-and-immunomodulatory-properties-from-alligator-sinensis-play-pivotal-roles-in-host-anti-microbial-immune-responses
#9
Yan Chen, Shasha Cai, Xue Qiao, Mali Wu, Zhilai Guo, Renping Wang, Yi-Qun Kuang, Haining Yu, Yipeng Wang
Crocodilians are regarded as possessing a powerful immune system. However, the composition and action of crocodilian immune system has remained unclear until now. Cathelicidins, the principal family of host defense peptides, play pivotal roles in vertebrate immune defense against microbial invasions. However, cathelicidins from crocodilians have not been extensively studied to date. In the present study, six novel cathelicidins (As-CATH1~6) were identified and characterized from the endangered Chinese Alligator ( Alligator sinensis )...
July 18, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28722329/prevalence-of-salmonella-among-waterfowl-along-the-texas-gulf-coast
#10
M K Grigar, K J Cummings, S C Rankin
Migratory waterfowl may play a role in the ecology and transmission of zoonotic pathogens, given their ability to travel long distances and their use of varied habitats. Our objectives were to estimate the prevalence of Salmonella among waterfowl along the Texas Gulf coast and to characterize the isolates. Faecal samples were collected from hunter-harvested waterfowl at four wildlife management areas from September through November, 2016. Standard bacteriologic culture methods were used to isolate Salmonella from samples, and isolates were characterized by serotyping and anti-microbial susceptibility testing...
July 19, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28721717/microbial-transglutaminase-used-in-bread-preparation-at-standard-bakery-concentrations-does-not-increase-immuno-detectable-amounts-of-deamidated-gliadin
#11
Andreas Heil, Jürgen Ohsam, Bernard van Genugten, Oscar Diez, Keiichi Yokoyama, Yoshiyuki Kumazawa, Ralf Pasternack, Martin Hils
The effect of standard bakery concentrations of microbial transglutaminase (MTG) in wheat bread preparation on the immunoreactivity of celiac disease (CD) patients' sera was investigated. Immunoblotting using monoclonal antibodies specific to unmodified and/or deamidated gliadin showed no differences between control bread and MTG-bread. Deamidation of gliadin could not be detected at standard MTG concentrations. CD patients' sera were characterized using anti-gliadin and anti-DGP ELISA and grouped into DGP high and low titer pools...
July 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28719350/characterization-of-candidate-probionts-isolated-from-human-breast-milk
#12
S Khalkhali, N Mojgani
This study was designed to isolate and identify the potential probionts present in 32 healthy mothers' breast milk. Microbial culture media and 16SrRNA sequencing were used to isolate and identify the bacteria and all isolates were analyzed for their antagonistic potential, resistance to acidic pH, bile salts and survival under simulated gastric and intestinal conditions. The colonization potential was further assessed based on adherence to human enterocyte-like Caco-2 cell lines. The breast milk samples harbored significant numbers of Gram positive and catalase negative (85%) bacteria...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28719187/exploring-the-role-of-habitat-on-the-wettability-of-cicada-wings
#13
Junho Oh, Catherine Dana, Sungmin Hong, Jessica K Roman, Kyoo D Jo, Je W Hong, Jonah Nguyen, Donald M Cropek, Marianne Alleyne, Nenad Miljkovic
Evolutionary pressure has pushed the wings of many insect species to develop micro/nanostructures that can significantly affect wettability and enable functionalities such as droplet jumping, self-cleaning, anti-fogging, anti-microbial, and anti-reflectivity. Significant effort is underway to understand the wing surface structure to establish rational design tools for the development of novel engineered materials. Most studies, however, have focused on superhydrophobic wings obtained from a single insect species, in particular, the Psaltoda claripennis cicada...
July 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28718724/black-raspberries-and-their-anthocyanin-and-fiber-fractions-alter-the-composition-and-diversity-of-gut-microbiota-in-f-344-rats
#14
Pan Pan, Vy Lam, Nita Salzman, Yi-Wen Huang, Jianhua Yu, Jianying Zhang, Li-Shu Wang
Natural compounds can alter the diversity and composition of the gut microbiome, potentially benefiting our health. We previously demonstrated chemopreventive effects of black raspberries (BRBs) in colorectal cancer, which is associated with gut dysbiosis. To investigate the effects of whole BRBs and their fractions on gut microbiota, we fed F-344 rats a control diet, 5% BRBs, the BRB anthocyanin fraction, or the BRB residue fraction for 6 weeks. Feces were collected at baseline and at weeks 3 and 6, and bacterial sequence counts were analyzed...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28718227/anti-microbial-resistance-in-pakistan-a-public-health
#15
EDITORIAL
Babar Tasneem Shaikh
No abstract text is available yet for this article.
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717003/surface-toll-like-receptor-3-expression-in-metastatic-intestinal-epithelial-cells-induces-inflammatory-cytokine-production-and-promotes-invasiveness
#16
Marit Bugge, Bjarte Bergstrom, Oda Kamilla Eide, Helene Solli, Ingrid F Kjønstad, Jørgen Stenvik, Terje Espevik, Nadra J Nilsen
Toll-like receptors (TLR)s are innate immune receptors for sensing microbial molecules and damage-associated molecular patterns released from host cells. Double-stranded RNA and the synthetic analog polyinosinic:polycytidylic acid (Poly(I:C)) bind and activate TLR3. This stimulation leads to recruitment of the adaptor molecule TRIF and activation of the transcription factors nuclear factor κB (NF-κB) and interferon regulatory factor 3 (IRF-3), classically inducing IFNβ production. Here, we report that unlike non-metastatic intestinal epithelial cells (IECs), metastatic IECs express TLR3, and that TLR3 promotes invasiveness of these cells...
July 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28713353/functional-characterization-of-novel-faecalibacterium-prausnitzii-strains-isolated-from-healthy-volunteers-a-step-forward-in-the-use-of-f-prausnitzii-as-a-next-generation-probiotic
#17
Rebeca Martín, Sylvie Miquel, Leandro Benevides, Chantal Bridonneau, Véronique Robert, Sylvie Hudault, Florian Chain, Olivier Berteau, Vasco Azevedo, Jean M Chatel, Harry Sokol, Luis G Bermúdez-Humarán, Muriel Thomas, Philippe Langella
Faecalibacterium prausnitzii is a major member of the Firmicutes phylum and one of the most abundant bacteria in the healthy human microbiota. F. prausnitzii depletion has been reported in several intestinal disorders, and more consistently in Crohn's disease (CD) patients. Despite its importance in human health, only few microbiological studies have been performed to isolate novel F. prausnitzii strains in order to better understand the biodiversity and physiological diversity of this beneficial commensal species...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28713083/regional-features-of-the-microbial-landscape-of-urine-and-comparative-evaluation-of-antimicrobial-therapy-in-children-with-cystitis
#18
Tetyana O Kryuchko, Vira P Kharshman, Inna M Nesina, Nataliia V Kuzmenko, Jaroslava M Oleksiienko
INTRODUCTION: Growing resistance of pathogens to antibiotics, including cross-resistance to other antimicrobial classes that are used in the treatment of recurrent infections of the lower urinary system in children demands constant control of issues of regional antibiotic resistance. In the present days, in the empirical treatment of such patients physicians still choose medications with preserved activity in relation to E. coli. The aim of our study was to investigate the regional features of microbial landscape of urine in children with cystitis and study the efficacy of 7-day administration of Furamag medicinal drug for the treatment of recurrent episodes of this disease in children...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28712728/hexim1-and-neat1-long-non-coding-rna-form-a-multi-subunit-complex-that-regulates-dna-mediated-innate-immune-response
#19
Mehdi Morchikh, Alexandra Cribier, Raoul Raffel, Sonia Amraoui, Julien Cau, Dany Severac, Emeric Dubois, Olivier Schwartz, Yamina Bennasser, Monsef Benkirane
The DNA-mediated innate immune response underpins anti-microbial defenses and certain autoimmune diseases. Here we used immunoprecipitation, mass spectrometry, and RNA sequencing to identify a ribonuclear complex built around HEXIM1 and the long non-coding RNA NEAT1 that we dubbed the HEXIM1-DNA-PK-paraspeckle components-ribonucleoprotein complex (HDP-RNP). The HDP-RNP contains DNA-PK subunits (DNAPKc, Ku70, and Ku80) and paraspeckle proteins (SFPQ, NONO, PSPC1, RBM14, and MATRIN3). We show that binding of HEXIM1 to NEAT1 is required for its assembly...
July 10, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28712268/the-anti-inflammatory-and-antioxidant-properties-of-1-2-decanediol-and-willow-bark-extract-in-lipopolysaccharide-stimulated-keratinocytes
#20
Roberta DI Caprio, Giuseppe Monfrecola, Anna Balato, Nicola Balato, Franco Gasparri, Raffaella Micillo, Serena Lembo
BACKGROUND: The 1,2-decanediol (S-Mal) is an organic compound belonging to the 1,2- alkanediol family, with two hydroxyl groups located on the first and second carbon of the alkane chain, probably responsible for the enhanced anti-bacterial efficacy. The willow bark total extract (W-Mal) has been used since thousands of years as an herbal remedy for its antipyretic, analgesic, anti-inflammatory and anti-microbial activities. S-Mal is used in cosmetic preparations, whether W- Mal can be topically or systemically administered...
July 13, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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