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https://www.readbyqxmd.com/read/28350990/the-putative-drp1-inhibitor-mdivi-1-is-a-reversible-mitochondrial-complex-i-inhibitor-that-modulates-reactive-oxygen-species
#1
Evan A Bordt, Pascaline Clerc, Brian A Roelofs, Andrew J Saladino, László Tretter, Vera Adam-Vizi, Edward Cherok, Ahmed Khalil, Nagendra Yadava, Shealinna X Ge, T Chase Francis, Nolan W Kennedy, Lora K Picton, Tanya Kumar, Sruti Uppuluri, Alexandrea M Miller, Kie Itoh, Mariusz Karbowski, Hiromi Sesaki, R Blake Hill, Brian M Polster
Mitochondrial fission mediated by the GTPase dynamin-related protein 1 (Drp1) is an attractive drug target in numerous maladies that range from heart disease to neurodegenerative disorders. The compound mdivi-1 is widely reported to inhibit Drp1-dependent fission, elongate mitochondria, and mitigate brain injury. Here, we show that mdivi-1 reversibly inhibits mitochondrial complex I-dependent O2 consumption and reverse electron transfer-mediated reactive oxygen species (ROS) production at concentrations (e...
March 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28350842/combination-of-mesenchymal-stem-cell-injection-with-icariin-for-the-treatment-of-diabetes-associated-erectile-dysfunction
#2
Xiyou Wang, Chuanhai Liu, Yong Xu, Ping Chen, Yue Shen, Yansheng Xu, Yubo Zhao, Weihao Chen, Xinyu Zhang, Yun Ouyang, Yi Wang, Changliang Xie, Maojun Zhou, Cuilong Liu
The present study was aimed to examine whether icariin, a traditional Chinese medicine, could improve therapeutic effects of adipose derived mesenchymal stem cells (ADSCs) for diabetes-associated erectile dysfunction (DMED). DMED were induced in rats by intraperitoneal injection of streptozotocin and confirmed by erectile function measurement. Then, rats of diabetic ED were randomly divided to receive the treatment of saline, ADSCs, icariin or ADSCs combined with icariin respectively. Compared with the treatment by ADSCs or icariin alone, intracavernosum injection of ADSCs combined with the following daily gastric gavage of icariin significantly augmented the value of ICP and ICP/MAP (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28350451/ros-switchable-polymeric-nanoplatform-with-stimuli-responsive-release-for-active-targeted-drug-delivery-to-breast-cancer
#3
Yu Zhang, Qin Guo, Sai An, Yifei Lu, Jianfeng Li, Xi He, Lisha Liu, Yujie Zhang, Tao Sun, Chen Jiang
Tumor microenvironment plays a vital role in the process of tumor development, proliferation, invasion, and metastasis. It is well acknowledged that reduction in pH, reactive oxygen species (ROS), and increased level of glucose transporter 1 (GLUT1) have become featured intracellular and extracellular biochemical markers of cancer owing to oncogenic transformation and abnormal metabolism. To establish a distinctive drug delivery system directed against the tumor microenvironment features, we develop a newly engineered polymeric nanoplatform for efficient doxorubicin (DOX) delivery with reduced systemic toxicity and high antitumor efficiency...
March 28, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28346820/blastomyces-dermatitidis-serine-protease-dipeptidyl-peptidase-iva-dppiva-cleaves-elr-cxc-chemokines-altering-their-effects-on-neutrophils
#4
Jenna Lorenzini, J Scott Fites, Jeniel Nett, Bruce S Klein
Blastomycosis elicits a pyogranulomatous inflammatory response, which involves a prominent recruitment of neutrophils to the site of infection. While neutrophils are efficiently recruited to the site of infection, this event is paradoxically coupled with the host's inability to control infection by Blastomyces dermatitidis, the causative agent. The mechanisms underlying this characteristic pyogranulomatous response and inability of neutrophils to kill the yeast are poorly understood. We recently reported that the fungal protease DppIVA promotes B...
March 27, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28346709/synthetic-%C3%AE-nitrostyrene-derivative-cyt-rx20-as-inhibitor-of-oral-cancer-cell-proliferation-and-tumor-growth-through-glutathione-suppression-and-reactive-oxygen-species-induction
#5
Yen-Yun Wang, Yuk-Kwan Chen, Ya-Ling Hsu, Wen-Chin Chiu, Chun-Hao Tsai, Stephen Chu-Sung Hu, Pei-Wen Hsieh, Shyng-Shiou F Yuan
BACKGROUND: The β-nitrostyrene family possesses anticancer properties. In this study, β-nitrostyrene derivative CYT-Rx20 (3'-hydroxy-4'-methoxy-β-methyl-β-nitrostyrene) was synthesized and investigated its anticancer activity in oral cancer. METHODS: Anticancer activity of CYT-Rx20 and the underlying mechanisms were analyzed using cell viability assay, reactive oxygen species (ROS) generation assay, fluorescence-activated cell sorter analysis, annexin V staining, comet assay, glutathione (GSH)/glutathione disulfide (GSSG) ratio, immunoblotting, soft agar assay, nude mice xenograft study, and immunohistochemistry...
March 27, 2017: Head & Neck
https://www.readbyqxmd.com/read/28346673/clinical-features-of-bim-deletion-polymorphism-and-its-relation-with-crizotinib-primary-resistance-in-chinese-patients-with-alk-ros1-fusion-positive-non-small-cell-lung-cancer
#6
Limin Zhang, Tao Jiang, Xuefei Li, Yan Wang, Chao Zhao, Sha Zhao, Lei Xi, Shijia Zhang, Xiaozhen Liu, Yijun Jia, Hui Yang, Jinpeng Shi, Chunxia Su, Shengxiang Ren, Caicun Zhou
BACKGROUND: The authors' previous study demonstrated that the B-cell chronic lymphocytic leukemia/lymphoma (Bcl-2)-like 11 (BCL2L11) (Bim) deletion polymorphism was associated with poor clinical response to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors in patients with non-small cell lung cancer (NSCLC) with EGFR mutations. The objective of the current study was to investigate the impact of the Bim deletion polymorphism among patients with anaplastic lymphoma kinase (ALK)-positive or ROS proto-oncogene 1, receptor tyrosine kinase (ROS1)-positive NSCLC who were treated with crizotinib...
March 27, 2017: Cancer
https://www.readbyqxmd.com/read/28346526/plasma-potassium-diuretic-use-and-risk-of-developing-chronic-kidney-disease-in-a-predominantly-white-population
#7
Lyanne M Kieneker, Michele F Eisenga, Michel M Joosten, Rudolf A de Boer, Ron T Gansevoort, Jenny E Kootstra-Ros, Gerjan Navis, Stephan J L Bakker
OBJECTIVE: Both hypokalemia and hyperkalemia are associated with disease progression in patients with chronic kidney disease (CKD). It is unclear whether similar associations are present in the general population. Our aim was to examine the association of plasma potassium with risk of developing CKD and the role of diuretics in this association in a population-based cohort. RESEARCH DESIGN AND METHODS: We studied 5,130 subjects free of CKD at baseline of the Prevention of Renal and Vascular End-Stage Disease (PREVEND) study, a prospective, population-based cohort of Dutch men and women aged 28-75 years...
2017: PloS One
https://www.readbyqxmd.com/read/28346481/edaravone-protects-against-hyperosmolarity-induced-oxidative-stress-and-apoptosis-in-primary-human-corneal-epithelial-cells
#8
Yanwei Li, Haifeng Liu, Wei Zeng, Jing Wei
An increase in the osmolarity of tears induced by excessive evaporation of the aqueous tear phase is a major pathological mechanism behind dry eye. Exposure of epithelial cells on the surface of the human eye to hyperosmolarity leads to oxidative stress, mitochondrial dysfunction, and apoptosis. Edaravone, a hydroxyl radical scavenging agent, is clinically used to reduce neuronal damage following ischemic stroke. In this study, we found that treatment with hyperosmotic media at 400 and 450 mOsM increased the levels of ROS and mitochondrial oxidative damage, which were ameliorated by edaravone treatment in a dose-dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/28346470/relationship-of-microbial-communities-and-suppressiveness-of-trichoderma-fortified-composts-for-pepper-seedlings-infected-by-phytophthora-nicotianae
#9
Margarita Ros, Iulia Raut, Ana Belén Santisima-Trinidad, Jose Antonio Pascual
The understanding of the dynamic of soil-borne diseases is related to the microbial composition of the rhizosphere which is the key to progress in the field of biological control. Trichoderma spp. is commonly used as a biological control agent. The use of next generation sequencing approaches and quantitative PCR are two successful approaches to assess the effect of using compost as substrate fortified with two Trichoderma strains (Trichoderma harzianum or Trichoderma asperellum) on bacterial and fungal communities in pepper rhizosphere infected with Phytophthora nicotianae...
2017: PloS One
https://www.readbyqxmd.com/read/28346442/identification-of-12-new-susceptibility-loci-for-different-histotypes-of-epithelial-ovarian-cancer
#10
Catherine M Phelan, Karoline B Kuchenbaecker, Jonathan P Tyrer, Siddhartha P Kar, Kate Lawrenson, Stacey J Winham, Joe Dennis, Ailith Pirie, Marjorie J Riggan, Ganna Chornokur, Madalene A Earp, Paulo C Lyra, Janet M Lee, Simon Coetzee, Jonathan Beesley, Lesley McGuffog, Penny Soucy, Ed Dicks, Andrew Lee, Daniel Barrowdale, Julie Lecarpentier, Goska Leslie, Cora M Aalfs, Katja K H Aben, Marcia Adams, Julian Adlard, Irene L Andrulis, Hoda Anton-Culver, Natalia Antonenkova, Gerasimos Aravantinos, Norbert Arnold, Banu K Arun, Brita Arver, Jacopo Azzollini, Judith Balmaña, Susana N Banerjee, Laure Barjhoux, Rosa B Barkardottir, Yukie Bean, Matthias W Beckmann, Alicia Beeghly-Fadiel, Javier Benitez, Marina Bermisheva, Marcus Q Bernardini, Michael J Birrer, Line Bjorge, Amanda Black, Kenneth Blankstein, Marinus J Blok, Clara Bodelon, Natalia Bogdanova, Anders Bojesen, Bernardo Bonanni, Åke Borg, Angela R Bradbury, James D Brenton, Carole Brewer, Louise Brinton, Per Broberg, Angela Brooks-Wilson, Fiona Bruinsma, Joan Brunet, Bruno Buecher, Ralf Butzow, Saundra S Buys, Trinidad Caldes, Maria A Caligo, Ian Campbell, Rikki Cannioto, Michael E Carney, Terence Cescon, Salina B Chan, Jenny Chang-Claude, Stephen Chanock, Xiao Qing Chen, Yoke-Eng Chiew, Jocelyne Chiquette, Wendy K Chung, Kathleen B M Claes, Thomas Conner, Linda S Cook, Jackie Cook, Daniel W Cramer, Julie M Cunningham, Aimee A D'Aloisio, Mary B Daly, Francesca Damiola, Sakaeva Dina Damirovna, Agnieszka Dansonka-Mieszkowska, Fanny Dao, Rosemarie Davidson, Anna DeFazio, Capucine Delnatte, Kimberly F Doheny, Orland Diez, Yuan Chun Ding, Jennifer Anne Doherty, Susan M Domchek, Cecilia M Dorfling, Thilo Dörk, Laure Dossus, Mercedes Duran, Matthias Dürst, Bernd Dworniczak, Diana Eccles, Todd Edwards, Ros Eeles, Ursula Eilber, Bent Ejlertsen, Arif B Ekici, Steve Ellis, Mingajeva Elvira, Kevin H Eng, Christoph Engel, D Gareth Evans, Peter A Fasching, Sarah Ferguson, Sandra Fert Ferrer, James M Flanagan, Zachary C Fogarty, Renée T Fortner, Florentia Fostira, William D Foulkes, George Fountzilas, Brooke L Fridley, Tara M Friebel, Eitan Friedman, Debra Frost, Patricia A Ganz, Judy Garber, María J García, Vanesa Garcia-Barberan, Andrea Gehrig, Aleksandra Gentry-Maharaj, Anne-Marie Gerdes, Graham G Giles, Rosalind Glasspool, Gord Glendon, Andrew K Godwin, David E Goldgar, Teodora Goranova, Martin Gore, Mark H Greene, Jacek Gronwald, Stephen Gruber, Eric Hahnen, Christopher A Haiman, Niclas Håkansson, Ute Hamann, Thomas V O Hansen, Patricia A Harrington, Holly R Harris, Jan Hauke, Alexander Hein, Alex Henderson, Michelle A T Hildebrandt, Peter Hillemanns, Shirley Hodgson, Claus K Høgdall, Estrid Høgdall, Frans B L Hogervorst, Helene Holland, Maartje J Hooning, Karen Hosking, Ruea-Yea Huang, Peter J Hulick, Jillian Hung, David J Hunter, David G Huntsman, Tomasz Huzarski, Evgeny N Imyanitov, Claudine Isaacs, Edwin S Iversen, Louise Izatt, Angel Izquierdo, Anna Jakubowska, Paul James, Ramunas Janavicius, Mats Jernetz, Allan Jensen, Uffe Birk Jensen, Esther M John, Sharon Johnatty, Michael E Jones, Päivi Kannisto, Beth Y Karlan, Anthony Karnezis, Karin Kast, Catherine J Kennedy, Elza Khusnutdinova, Lambertus A Kiemeney, Johanna I Kiiski, Sung-Won Kim, Susanne K Kjaer, Martin Köbel, Reidun K Kopperud, Torben A Kruse, Jolanta Kupryjanczyk, Ava Kwong, Yael Laitman, Diether Lambrechts, Nerea Larrañaga, Melissa C Larson, Conxi Lazaro, Nhu D Le, Loic Le Marchand, Jong Won Lee, Shashikant B Lele, Arto Leminen, Dominique Leroux, Jenny Lester, Fabienne Lesueur, Douglas A Levine, Dong Liang, Clemens Liebrich, Jenna Lilyquist, Loren Lipworth, Jolanta Lissowska, Karen H Lu, Jan Lubinński, Craig Luccarini, Lene Lundvall, Phuong L Mai, Gustavo Mendoza-Fandiño, Siranoush Manoukian, Leon F A G Massuger, Taymaa May, Sylvie Mazoyer, Jessica N McAlpine, Valerie McGuire, John R McLaughlin, Iain McNeish, Hanne Meijers-Heijboer, Alfons Meindl, Usha Menon, Arjen R Mensenkamp, Melissa A Merritt, Roger L Milne, Gillian Mitchell, Francesmary Modugno, Joanna Moes-Sosnowska, Melissa Moffitt, Marco Montagna, Kirsten B Moysich, Anna Marie Mulligan, Jacob Musinsky, Katherine L Nathanson, Lotte Nedergaard, Roberta B Ness, Susan L Neuhausen, Heli Nevanlinna, Dieter Niederacher, Robert L Nussbaum, Kunle Odunsi, Edith Olah, Olufunmilayo I Olopade, Håkan Olsson, Curtis Olswold, David M O'Malley, Kai-Ren Ong, N Charlotte Onland-Moret, Nicholas Orr, Sandra Orsulic, Ana Osorio, Domenico Palli, Laura Papi, Tjoung-Won Park-Simon, James Paul, Celeste L Pearce, Inge Søkilde Pedersen, Petra H M Peeters, Bernard Peissel, Ana Peixoto, Tanja Pejovic, Liisa M Pelttari, Jennifer B Permuth, Paolo Peterlongo, Lidia Pezzani, Georg Pfeiler, Kelly-Anne Phillips, Marion Piedmonte, Malcolm C Pike, Anna M Piskorz, Samantha R Poblete, Timea Pocza, Elizabeth M Poole, Bruce Poppe, Mary E Porteous, Fabienne Prieur, Darya Prokofyeva, Elizabeth Pugh, Miquel Angel Pujana, Pascal Pujol, Paolo Radice, Johanna Rantala, Christine Rappaport-Fuerhauser, Gad Rennert, Kerstin Rhiem, Patricia Rice, Andrea Richardson, Mark Robson, Gustavo C Rodriguez, Cristina Rodríguez-Antona, Jane Romm, Matti A Rookus, Mary Anne Rossing, Joseph H Rothstein, Anja Rudolph, Ingo B Runnebaum, Helga B Salvesen, Dale P Sandler, Minouk J Schoemaker, Leigha Senter, V Wendy Setiawan, Gianluca Severi, Priyanka Sharma, Tameka Shelford, Nadeem Siddiqui, Lucy E Side, Weiva Sieh, Christian F Singer, Hagay Sobol, Honglin Song, Melissa C Southey, Amanda B Spurdle, Zsofia Stadler, Doris Steinemann, Dominique Stoppa-Lyonnet, Lara E Sucheston-Campbell, Grzegorz Sukiennicki, Rebecca Sutphen, Christian Sutter, Anthony J Swerdlow, Csilla I Szabo, Lukasz Szafron, Yen Y Tan, Jack A Taylor, Muy-Kheng Tea, Manuel R Teixeira, Soo-Hwang Teo, Kathryn L Terry, Pamela J Thompson, Liv Cecilie Vestrheim Thomsen, Darcy L Thull, Laima Tihomirova, Anna V Tinker, Marc Tischkowitz, Silvia Tognazzo, Amanda Ewart Toland, Alicia Tone, Britton Trabert, Ruth C Travis, Antonia Trichopoulou, Nadine Tung, Shelley S Tworoger, Anne M van Altena, David Van Den Berg, Annemarie H van der Hout, Rob B van der Luijt, Mattias Van Heetvelde, Els Van Nieuwenhuysen, Elizabeth J van Rensburg, Adriaan Vanderstichele, Raymonda Varon-Mateeva, Ana Vega, Digna Velez Edwards, Ignace Vergote, Robert A Vierkant, Joseph Vijai, Athanassios Vratimos, Lisa Walker, Christine Walsh, Dorothea Wand, Shan Wang-Gohrke, Barbara Wappenschmidt, Penelope M Webb, Clarice R Weinberg, Jeffrey N Weitzel, Nicolas Wentzensen, Alice S Whittemore, Juul T Wijnen, Lynne R Wilkens, Alicja Wolk, Michelle Woo, Xifeng Wu, Anna H Wu, Hannah Yang, Drakoulis Yannoukakos, Argyrios Ziogas, Kristin K Zorn, Steven A Narod, Douglas F Easton, Christopher I Amos, Joellen M Schildkraut, Susan J Ramus, Laura Ottini, Marc T Goodman, Sue K Park, Linda E Kelemen, Harvey A Risch, Mads Thomassen, Kenneth Offit, Jacques Simard, Rita Katharina Schmutzler, Dennis Hazelett, Alvaro N Monteiro, Fergus J Couch, Andrew Berchuck, Georgia Chenevix-Trench, Ellen L Goode, Thomas A Sellers, Simon A Gayther, Antonis C Antoniou, Paul D P Pharoah
To identify common alleles associated with different histotypes of epithelial ovarian cancer (EOC), we pooled data from multiple genome-wide genotyping projects totaling 25,509 EOC cases and 40,941 controls. We identified nine new susceptibility loci for different EOC histotypes: six for serous EOC histotypes (3q28, 4q32.3, 8q21.11, 10q24.33, 18q11.2 and 22q12.1), two for mucinous EOC (3q22.3 and 9q31.1) and one for endometrioid EOC (5q12.3). We then performed meta-analysis on the results for high-grade serous ovarian cancer with the results from analysis of 31,448 BRCA1 and BRCA2 mutation carriers, including 3,887 mutation carriers with EOC...
March 27, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28346428/autophagy-is-required-for-cell-survival-under-l-asparaginase-induced-metabolic-stress-in-acute-lymphoblastic-leukemia-cells
#11
H Takahashi, J Inoue, K Sakaguchi, M Takagi, S Mizutani, J Inazawa
L-asparaginase has been used for more than three decades in acute lymphoblastic leukemia (ALL) patients and remains an essential drug in the treatment of ALL. Poor response to L-asparaginase is associated with increased risk of therapeutic failure in ALL. However, both the metabolic perturbation and molecular context of L-asparaginase-treated ALL cells has not been fully elucidated. Here we identify that treatment with L-asparaginase results in metabolic shutdown via the reduction of both glycolysis and oxidative phosphorylation, accompanied by mitochondrial damage and activation of autophagy...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346230/glutaminase-and-poly-adp-ribose-polymerase-inhibitors-suppress-pyrimidine-synthesis-and-vhl-deficient-renal-cancers
#12
Arimichi Okazaki, Paulo A Gameiro, Danos Christodoulou, Laura Laviollette, Meike Schneider, Frances Chaves, Anat Stemmer-Rachamimov, Stephanie A Yazinski, Richard Lee, Gregory Stephanopoulos, Lee Zou, Othon Iliopoulos
Many cancer-associated mutations that deregulate cellular metabolic responses to hypoxia also reprogram carbon metabolism to promote utilization of glutamine. In renal cell carcinoma (RCC), cells deficient in the von Hippel-Lindau (VHL) tumor suppressor gene use glutamine to generate citrate and lipids through reductive carboxylation (RC) of α-ketoglutarate (αKG). Glutamine can also generate aspartate, the carbon source for pyrimidine biosynthesis, and glutathione for redox balance. Here we have shown that VHL-/- RCC cells rely on RC-derived aspartate to maintain de novo pyrimidine biosynthesis...
March 27, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28345875/reactive-oxygen-species-synergize-to-potently-and-selectively-induce-cancer-cell-death
#13
Hyang Yeon Lee, Elizabeth I Parkinson, Carlotta Granchi, Ilaria Paterni, Dipak Panigrahy, Pankaj Seth, Filippo Minutolo, Paul J Hergenrother
A distinctive feature of cancer cells is their elevated levels of reactive oxygen species (ROS), a trait that can cause cancer cells to be more sensitive to ROS-inducing agents than normal cells. ROS takes several forms, each with different reactivity and downstream consequence. Here we show that simultaneous generation of superoxide and hydrogen peroxide within cancer cells results in significant synergy, causing potent and selective cancer cell death. In these experiments superoxide is generated using the NAD(P)H quinone oxidoreductase 1 (NQO1) substrate deoxynyboquinone (DNQ), and hydrogen peroxide is generated using the lactate dehydrogenase A (LDH-A) inhibitor NHI-Glc-2...
March 27, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28345623/liposomes-loaded-with-bioactive-lipids-enhance-antibacterial-innate-immunity-irrespective-of-drug-resistance
#14
Noemi Poerio, Francesca Bugli, Francesco Taus, Marilina B Santucci, Carlo Rodolfo, Francesco Cecconi, Riccardo Torelli, Francesco Varone, Riccardo Inchingolo, Fabio Majo, Vincenzina Lucidi, Sabrina Mariotti, Roberto Nisini, Maurizio Sanguinetti, Maurizio Fraziano
Phagocytosis is a key mechanism of innate immunity, and promotion of phagosome maturation may represent a therapeutic target to enhance antibacterial host response. Phagosome maturation is favored by the timely and coordinated intervention of lipids and may be altered in infections. Here we used apoptotic body-like liposomes (ABL) to selectively deliver bioactive lipids to innate cells, and then tested their function in models of pathogen-inhibited and host-impaired phagosome maturation. Stimulation of macrophages with ABLs carrying phosphatidic acid (PA), phosphatidylinositol 3-phosphate (PI3P) or PI5P increased intracellular killing of BCG, by inducing phagosome acidification and ROS generation...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344907/grape-seed-proanthocyanidin-extract-protects-lymphocytes-against-histone-induced-apoptosis
#15
Ping Chang, Bing Mo, David M Cauvi, Ying Yu, Zhenhui Guo, Jian Zhou, Qiong Huang, Qitao Yan, Guiming Chen, Zhanguo Liu
Apoptosis of lymphocytes is associated with immunosuppression and poor prognosis in sepsis. Our previous report showed that histones, nuclear proteins released from damaged or dying cells in sepsis, can mediate lymphocyte apoptosis via mitochondria damage. Grape seed proanthocyanidin extract (GSPE), a natural substance with protective properties against oxidative stress, plays a vital role in cell and mitochondria protection. We thus hypothesized that GSPE may play a protective role in histone-induced lymphocyte apoptosis through its anti-oxidative properties...
2017: PeerJ
https://www.readbyqxmd.com/read/28344645/mimicking-lichens-incorporation-of-yeast-strains-together-with-sucrose-secreting-cyanobacteria-improves-survival-growth-ros-removal-and-lipid-production-in-a-stable-mutualistic-co-culture-production-platform
#16
Tingting Li, Chien-Ting Li, Kirk Butler, Stephanie G Hays, Michael T Guarnieri, George A Oyler, Michael J Betenbaugh
BACKGROUND: The feasibility of heterotrophic-phototrophic symbioses was tested via pairing of yeast strains Cryptococcus curvatus, Rhodotorula glutinis, or Saccharomyces cerevisiae with a sucrose-secreting cyanobacterium Synechococcus elongatus. RESULTS: The phototroph S. elongatus showed no growth in standard BG-11 medium with yeast extract, but grew well in BG-11 medium alone or supplemented with yeast nitrogen base without amino acids (YNB w/o aa). Among three yeast species, C...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28344491/effect-of-aster-tataricus-on-production-of-inflammatory-mediators-in-lps-stimulated-rat-astrocytoma-cell-line-c6-and-thp-1-cells
#17
Hong-Tao Zhang, Miao Tian, Qiao-Wei He, Nan Chi, Chun-Ming Xiu, Yun-Bo Wang
Neuroinflammation is the commonest cause of neurodegenerative diseases such as Alzheimer's disease. Present investigation evaluates the inhibitory effect of ethanolic root extract of Aster tataricus (AS) on inflammatory mediators production in lipopolysaccharide (LPS) stimulated C6 cells. C6 cells were treated with AS (20 and 40 mg/kg) and nimesulide (NSL, 1.5 μg/ml) for 1 day. Thereafter various parameters such as production of ROS, release of nitrite, MDA, glutathione level and NF-κB translocation were estimated in C6 cell lines...
March 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28344121/brevibacillus-laterosporus-pathogenesis-and-local-immune-response-regulation-in-the-house-fly-midgut
#18
Maria Elena Mura, Luca Ruiu
The insect midgut represents the primary site of action of the entompathogenic bacterium Brevibacillus laterosporus. Whilst most studies on this microorganism focus on the identification and characterization of possible virulence factors and toxins, little is known about the insect immune defense mechanisms that are activated against this pathogen. In this study we have investigated the local immune response of different house fly stages to B. laterosporus at the transcriptional level, and we tested the hypothesis that an improvement in entomopathogenicity can be achieved by impairing host innate immunity...
March 23, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28344061/compartmentation-of-mitochondrial-and-oxidative-metabolism-in-growing-hair-follicles-a-ring-of-fire
#19
John J Lemasters, Venkat K Ramshesh, Gregory L Lovelace, John Lim, Graham D Wright, Duane Harland, Thomas L Dawson
Little is known about the energetics of growing hair follicles, particularly in the mitochondrially abundant bulb. Here, mitochondrial and oxidative metabolism was visualized by multiphoton and light sheet microscopy in cultured bovine hair follicles and plucked human hairs. Mitochondrial membrane potential (ΔΨ), cell viability, reactive oxygen species (ROS) and secretory granules were assessed with parameter-indicating fluorophores. In growing follicles, lower bulb epithelial cells had high viability, and mitochondria were polarized...
March 23, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28343998/carnosic-acid-ca-attenuates-collagen-induced-arthritis-in-db-db-mice-via-inflammation-suppression-by-regulating-ros-dependent-p38-pathway
#20
Guangtao Xia, Xia Wang, Hongsheng Sun, Yuhong Qin, Min Fu
Rheumatoid arthritis (RA) is a multifactorial autoimmune disease, characterized by inflammation of synovial joints. Carnosic acid (CA) is a phenolic diterpene isolated from Rosmarinus officinails, playing a central role in cytoprotective responses to oxidative stress and inflammation response. Our study aimed to investigate the effects of CA on RA progression in diabetic animals. Carnosic acid (CA) was used to treat collagen-induced arthritis (CIA)-induced db/db mice. Blood glucose, oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were investigated to explore insulin resistance...
March 23, 2017: Free Radical Biology & Medicine
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