Results 61 to 70 of about 285,995 (306)

EXPERIMENTAL TESTING OF AN IN VIVO METHOD OF PHOTOTOXICITY EVALUATION

Регуляторные исследования и экспертиза лекарственных средств, 2018
At present all new medicinal products and cosmetics that absorb medium-wavelength UVB, long-wavelength UVA, or visible light in the range 290–700 nm need to be tested for potential phototoxicity.
V. А. Vavilova, E. V. Shekunova, V. A. Kashkin, M. N. Makarova, V. G. Makarov, A. Ya. Khaymenov   +5 more
doaj   +1 more source

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

Pathogenic Escherichia coli Possess Elevated Growth Rates under Exposure to Sub-Inhibitory Concentrations of Azithromycin

Antibiotics, 2020
Antimicrobial resistance (AMR) has been identified by the World Health Organization (WHO) as one of the ten major threats to global health. Advances in technology, including whole-genome sequencing, have provided new insights into the origin and ...
Tran Tuan-Anh, Ha Thanh Tuyen, Nguyen Ngoc Minh Chau, Nguyen Duc Toan, Tran Hanh Triet, Le Minh Triet, Nguyen Hoang Thu Trang, Nguyen Thi Nguyen To, Josefin Bartholdson Scott, Hao Chung The, Duy Pham Thanh, Hannah Clapham, Stephen Baker   +12 more
doaj   +1 more source

Characterization of extended-spectrum β-lactamases produced by Escherichia coli isolated from hospitalized and nonhospitalized patients : emergence of CTX-M-15-producing strains causing urinary tract infections [PDF]

, 2010
Extended-spectrum β-lactamase-producing Escherichia coli isolates were obtained from hospitalised and non-hospitalised patients in Belgium between August 2006 and November 2007.
Butaye, Patrick, Claeys, Geert, Dewulf, Jeroen, Haesebrouck, Freddy, Herman, Lieve, Heyndrickx, Marc, Lontie, Marc, Martel, An, Persoons, Davy, Smet, Annemieke, Van Meensel, Britt   +10 more
core   +1 more source

TRMT6‐Mediated m1A Modification of CDK9 mRNA Is a Dual‐Pronged Pathogenic Driver for HBV‐Related Hepatocellular Carcinoma

Advanced Science, EarlyView.
TRMT6‐mediated m1A modification in CDK9 mRNA enhances its mRNA stability and translation efficiency, thereby increasing the protein levels of CDK9. Upregulated CDK9 promotes the progression of HCC by elevating the levels of oncogenic factors including p‐STAT3, MCL1, and BCL‐2. On the other hand, CDK9 phosphorylates TARDBP at Ser254 to activate HBV core
Rui Zhang, Dandan Zong, Rui Liu, Yubo Wang, Qingqing Gu, Yao Yao, Wenfang Zheng, Mengmeng Yuan, Simeng Wang, Rongrong Cui, Daxu Li, Siwen Dang, Peng Hou   +12 more
wiley   +1 more source

Synthetic O‐Polysaccharide Backbone Units for a Single Antigen Vaccine Against Two Major Non‐Typhoidal Salmonella Serovars

Angewandte Chemie, EarlyView.
A modular strategy was developed to synthesize tri‐, hexa‐, and nona‐saccharides representing repeating units of the conserved O‐polysaccharide backbone of Salmonella. Conjugates of these glycans to bacteriophage Qβ induced strong IgG responses in mice and rabbits. Antibodies elicited recognized native O‐polysaccharides and conferred protection against
Xingling Pan, Changxin Huo, Soham Maity, Herbert Kavunja, Rachel Moszyk, Cameron Talbot, Scott M. Baliban, Xuefei Huang   +7 more
wiley   +2 more sources

Bone marrow involvement in a patient with alpha heavy chain disease:Response to tetracycline treatment

Mediterranean Journal of Hematology and Infectious Diseases, 2012
A 28-year-old man admitted with abdominal pain, weight loss and diarrhea. Barium x-ray studies showed segmentation, dilatation of bowel loops, mucosal folds thickening and delayed intestinal transit.
Zahit Bolaman, Irfan Yavasoglu, Gokhan Sargin, Gurhan Kadikoylu, Firuzan Kacar Doger   +4 more
doaj   +1 more source

Maximum levels of cross‐contamination for 24 antimicrobial active substances in non‐target feed. Part 12: Tetracyclines: tetracycline, chlortetracycline, oxytetracycline, and doxycycline

EFSA Journal, 2021
The specific concentrations of tetracycline, chlortetracycline, oxytetracycline and doxycycline in non‐target feed for food‐producing animals, below which there would not be an effect on the emergence of, and/or selection for, resistance in bacteria ...
EFSA Panel on Biological Hazards (BIOHAZ), Konstantinos Koutsoumanis, Ana Allende, Avelino Alvarez‐Ordóñez, Declan Bolton, Sara Bover‐Cid, Marianne Chemaly, Robert Davies, Alessandra De Cesare, Lieve Herman, Friederike Hilbert, Roland Lindqvist, Maarten Nauta, Giuseppe Ru, Marion Simmons, Panagiotis Skandamis, Elisabetta Suffredini, Dan I Andersson, Vasileios Bampidis, Johan Bengtsson‐Palme, Damien Bouchard, Aude Ferran, Maryline Kouba, Secundino López Puente, Marta López‐Alonso, Søren Saxmose Nielsen, Alena Pechová, Mariana Petkova, Sebastien Girault, Alessandro Broglia, Beatriz Guerra, Matteo Lorenzo Innocenti, Ernesto Liébana, Gloria López‐Gálvez, Paola Manini, Pietro Stella, Luisa Peixe   +36 more
doaj   +1 more source

Vacuolar ATPase depletion contributes to dysregulation of endocytosis in bloodstream forms of Trypanosoma brucei [PDF]

, 2020
BACKGROUND Vacuolar H-ATPase (V-ATPase) is a highly conserved protein complex which hydrolyzes ATP and pumps protons to acidify vacuolar vesicles.
Hide, G, Lai, D-H, Li, F-J, Lun, Z-R, Xu, Z-S   +4 more
core   +2 more sources

Targeting Peptostreptococcus anaerobius with an Iron‐Based Nanozyme Reverses Ferroptosis Resistance and Enhances Antitumor Immunity in Colorectal Cancer

Advanced Science, EarlyView.
An iron‐based nanozyme selectively eliminates intratumoral P. anaerobius while catalytically generating ROS to induce ferroptosis, synergistically suppressing colorectal cancer growth and activating anti‐tumor immunity through immunogenic cell death. ABSTRACT The intratumoral microbiota is a critical determinant of therapeutic outcomes in colorectal ...
Yinghao Cao, Jun Wang, Hanwenchen Wang, Xiang Sun, Fang Fang, Shiying Li, Jianping Liu, Changrong Shi, Pengyuan Qi, Jianhua Zou, Xiaoyuan Chen, Kailin Cai   +11 more
wiley   +1 more source