Results 81 to 90 of about 1,031,044 (237)

Murine Leukemia Viruses: Objects and Organisms

Advances in Virology, 2011
Murine leukemia viruses (MLVs) are among the simplest retroviruses. Prototypical gammaretroviruses encode only the three polyproteins that will be used in the assembly of progeny virus particles.
Alan Rein
doaj   +1 more source

ETHICS AND DRUG RESISTANCE

Bioethics, 2007
ABSTRACTThis paper reviews the dynamics behind, and ethical issues associated with, the phenomenon of drug resistance. Drug resistance is an important ethical issue partly because of the severe consequences likely to result from the increase in drug resistant pathogens if more is not done to control them.
openaire   +4 more sources

Effective Mixed-Type Tissue Crusher and Simultaneous Isolation of RNA, DNA, and Protein from Solid Tissues Using a TRIzol-Based Method

J
One of the major challenges of studying biomarkers in tumor samples is the low quantity and quality of isolated RNA, DNA, and proteins. Additionally, the extraction methods ideally should obtain macromolecules from the same tumor biopsy, allowing better ...
Kelly Karoline dos Santos, Isabelle Watanabe Daniel, Letícia Carani Delabio, Manoella Abrão da Costa, Júlia de Paula Dutra, Bruna Estelita Ruginsk, Jeanine Marie Nardin, Louryana Padilha Campos, Fabiane Gomes de Moraes Rego, Geraldo Picheth, Glaucio Valdameri, Vivian Rotuno Moure   +11 more
doaj   +1 more source

Dual activity of PNGM-1 pinpoints the evolutionary origin of subclass B3 metallo-β-lactamases: a molecular and evolutionary study

Emerging Microbes and Infections, 2019
Resistance to β-lactams is one of the most serious problems associated with Gram-negative infections. β-Lactamases are able to hydrolyze β-lactams such as cephalosporins and/or carbapenems.
Jung Hun Lee, Masayuki Takahashi, Jeong Ho Jeon, Lin-Woo Kang, Mineaki Seki, Kwang Seung Park, Myoung-Ki Hong, Yoon Sik Park, Tae Yeong Kim, Asad Mustafa Karim, Jung-Hyun Lee, Masayuki Nashimoto, Sang Hee Lee   +12 more
doaj   +1 more source

Bacterial Genetics and Drug Resistance [PDF]

, 1952
Bernard D. Davis
openalex   +1 more source

Drug Resistance in Tuberculosis

Annals of Saudi Medicine, 1990
Resistance to antituberculosis drugs is due to the occurrence of resistant mutants in the bacterial population even before exposure to these drugs. These mutations are chromosomal in origin. Resistance occurs when the bacterial population is large or when drugs are used alone. Potent drugs such as rifampicin, isoniazid and streptomycin are effective in
openaire   +4 more sources

Enigmatic exosomal connection in lung cancer drug resistance

Molecular Therapy: Nucleic Acids
Lung cancer remains a significant global health concern with limited treatment options and poor prognosis, particularly in advanced stages. Small extracellular vesicles such as exosomes, secreted by cancer cells, play a pivotal role in mediating drug ...
Sambit K. Patra, Rajeev K. Sahoo, Stuti Biswal, Shikshya S. Panda, Bijesh Kumar Biswal   +4 more
doaj  

DRUG RESISTANCE IN TRYPANOSOMES; CROSS‐RESISTANCE ANALYSES [PDF]

, 1959
J. Williamson, I. M. Rollo
openalex   +1 more source

DRUG-RESISTANCE OF BACTERIS

The KITAKANTO Medical Journal, 1963
In the field study many types of drug-resistant E. coli, Shigella and Citrobacter were isolated by this laboratory. And seven types of transmissible drug-resistance factor were obtained; R(TC) R(SM), R(CM. TC), R(SM. SA), R(CM. SM SA), R(TC. SM. SA) and R(CM. TC.SM. SA). The R(CM) factor was segregated from (CM.
openaire   +5 more sources

Notes on the Effects of Therapeutic Agents on Trypanosomes in Respect to (a) Acquired Resistance of the Parasites to the Drug, and (B) Changes in Virulence of the Strains after Escape from the Drug [PDF]

, 1908
Benjamin Moore, M. Nierenstein, John L. Todd   +2 more
openalex   +1 more source