Results 51 to 60 of about 2,210,070 (253)

Effect of Phenylacetic Acid Addition on Productivity of Penicillium chrysogenum in Penicillin G Production Using Pilot Scale Reactor [PDF]

, 2012
Effect of penicillin’s precursor addition, phenylacetic acid (PAA), was done by addition of PAA in several concentrations in a pilot scale reactor batch culture to produce penicillin G with fungi Penicillium chrysogenum.
S, Suyanto,, Rofiq , Sunaryanto,, Amila , Pramisandi,, Erwahyuni, Endang Prabandari   +3 more
core   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

Effects of penicillin V on the faecal microbiota in patients with pharyngotonsillitis - an observational study

, 2023
Background: The intestinal microbiota functions as a reservoir of antibiotic resistance. Objectives: To evaluate penicillin V (phenoxymethylpenicillin) effects on the faecal microbiota with focus on beta-lactam resistance. Methods: We included 31 primary
Rystedt, Karin, Sundvall, Pär Daniel, Giske, Christian G., Hedin, Katarina, Rystedt, Karin,, Edquist, P., Sundvall, Pär-Daniel,, Giske, C. G., Tyrstrup, Mia, Edlund, C., Hedin, K., Ståhlgren, Gunilla Skoog, Edlund, Charlotta, Stahlgren, G. S., Edquist, Petra, Tyrstrup, M.   +15 more
core   +1 more source

Inhibition of cyclin‐dependent kinases 12/13 using CT7439 as a treatment for colorectal cancer with CDK12 upregulation

Molecular Oncology, EarlyView.
The proposed mechanism of action for the CDK12/13 inhibitor and cyclin K degrader, CT7439. CDK12/13 inhibition interrupts transcription elongation, leading to increased DNA damage that results in cell death. This agent is a potentially novel treatment option for patients with colorectal cancer. Created in BioRender. Cyclin‐dependent kinase (CDK) 12 and
Wylie K. Watlington, Divya L. Dayanidhi, Mohammad Zokaasadi, John B. Mantyh, Pelumi D. Olawuni, Gabrielle Rupprecht, Jeremy M. Force, Shannon McCall, Ashwani K. Bahl, David S. Hsu, Jason A. Somarelli   +10 more
wiley   +1 more source

Antibiotic resistance of Staphylococcus aureus isolated from the oral cavity of paraguayan participants from Coronel Oviedo, year 2021

Memorias del Instituto de Investigaciones en Ciencias de la Salud
A cross-sectional study was carried out to identify the resistance profile of Staphylococcus aureus colonizing the oral cavity of patients. Sampling was carried out with sterile swabs. Mannitol-positive colonies were cultured on blood agar, identifying S.
Ulises Villasanti Torales, Julieta Mendez, Jazmín Servin, Marylet Rodriguez, Andrea Villalba, Analia Ortiz, Pablo Franco   +6 more
doaj   +1 more source

Phenotypic and Genotypic Correlates of Penicillin Susceptibility in Nontoxigenic Corynebacterium diphtheriae, British Columbia, Canada, 2015–2018

Emerging Infectious Diseases, 2020
In 2015, the Clinical and Laboratory Standards Institute (CLSI) updated its breakpoints for penicillin susceptibility in Corynebacterium species from
Jason Zou, Samuel D. Chorlton, Marc G. Romney, Michael Payne, Tanya Lawson, Anna Wong, Sylvie Champagne, Gordon Ritchie, Christopher F. Lowe   +8 more
doaj   +1 more source

Novel determinants of antibiotic resistance : identification of mutated loci in highly methicillin-resistant subpopulations of methicillin-resistant Staphylococcus aureus [PDF]

, 2014
This work was supported by a grant from the U.S. Public Health Service 2 RO1 AI457838-14 and by grant UL1 TR000043-07S1 from the National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH) Clinical and Translational ...
Kim, Choonkeun, Hermínia de Lencastre, Matthew T. J. Holden, Holden, Matthew T J, María Pardos de la Gándara, Tomasz, Alexander, Parkhill, Julian, de Lencastre, Hermínia, Alexander Tomasz, Stephen D. Bentley, Janina Dordel, Dordel, Janina, Pardos de la Gándara, María, Chung, Marilyn, Bentley, Stephen D, Marilyn Chung, Choonkeun Kim, Julian Parkhill   +17 more
core   +1 more source

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

Molecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang, Hyung Seok Kim, Geum Ok Baek, Moon Gyeong Yoon, Su In Lee, Jee‐Yeong Jeong, Ji Eun Han, Soon Sun Kim, Jae Youn Cheong, Jung Woo Eun   +9 more
wiley   +1 more source

Bacterial Resistance to Penicillin G by Decreased Affinity of Penicillin-Binding Proteins: A Mathematical Model

Emerging Infectious Diseases, 2003
Streptococcus pneumoniae and Neisseria meningitidis have very similar mechanisms of resistance to penicillin G. Although penicillin resistance is now common in S. pneumoniae, it is still rare in N. meningitidis.
L. Temime, P.Y. Boëlle, P. Courvalin, D. Guillemot   +3 more
doaj   +1 more source

Antimicrobial resistance surveillance in Europe 2013: Annual Report of the European Antimicrobial Resistance Surveillance Network (EARS-Net) [PDF]

, 2014
Portugal - EARS-Net Management Team & National representatives of EARS-Net (Manuela Caniça, José Artur Paiva, Vera Manageiro, Eugénia Ferreira)The results presented in this report are based on antimicrobial resistance data from invasive isolates reported
European Antimicrobial Resistance Surveillance Network (EARS-Net)
core   +1 more source