Imaging cytochrome C oxidase and FoF1-ATP synthase in mitochondrial cristae of living human cells by FLIM and superresolution microscopy [PDF]
Cytochrome C oxidase and FoF1-ATP synthase constitute complex IV and V, respectively, of the five membrane-bound enzymes in mitochondria comprising the respiratory chain. These enzymes are located in the inner mitochondrial membrane (IMM), which exhibits large invaginations called cristae.
arxiv
Role of Lipids in the Control of Sex Differences in the Phase I Metabolism of Drugs [PDF]
Hepatic microsomal preparations from male and female rats were delipidated by column chromatography following cholate solubilisation. The enzyme activity was assayed using lignocaine as the substrate for the mixed function oxidase.
Meftah, Nuri Musa
core
Illuminating Immunity: A Systematic Review of Immune Cell Autofluorescence
ABSTRACT Immunophenotyping provides valuable prognostic and diagnostic information, but is technically complex and expensive. The assessment of autofluorescence is label‐free and provides complex information on cell identity. However, research on its application to immunophenotyping has been heterogenous.
Aline Knab+4 more
wiley +1 more source
Optimal enzyme rhythms in cells [PDF]
Cells can use periodic enzyme activities to adapt to periodic environments or existing internal rhythms and to establish metabolic cycles that schedule biochemical processes in time. A periodically changing allocation of the protein budget between reactions or pathways may increase the overall metabolic efficiency.
arxiv
Hepatic Cytochrome P-450. A Proton Magnetic Relaxation Study of Microsomal, Solubilized and Partially Reconstituted Enzyme System [PDF]
The longitudiJ:ial proton magnetic relaxation times, Ti, were measured from -5 to 40 °c for microsomal, solubilized and reconstituted cytochrome P-450 obtained from phenobarbital-induced rat livers.
B. Benko+5 more
core +1 more source
Therapeutic challenges posed by critical drug-drug interactions in cystic fibrosis [PDF]
This review seeks to re-introduce cystic fibrosis (CF) clinicians to the pharmacology of drug-drug interactions among medications commonly used in CF and provide a framework for understanding these interactions among medications outside the scope of this
Henry, Marianna M.+2 more
core +2 more sources
Photoactivated chemotherapy (PACT), an oxygen‐independent light‐based therapy, utilizes chemotherapeutic regimens that remain inert until exposed to light, allowing target‐specific activation while minimizing off‐target toxicity. The integration of these techniques has the potential to improve selectivity and yield synergistic cytotoxic effects that ...
Nkune Williams Nkune, Heidi Abrahamse
wiley +1 more source
Comments on Nonrenewal Statistics in the Catalytic Activity of Enzyme Molecules at Mesoscopic Concentrations [PDF]
It is well known in enzyme kinetics that the Michaelis-Menten (MM) equation is applicable only to enzymes in the steady state. We show that the result obtained in the previous work [Phys. Rev. Lett. 107, 218301 (2011)] is inconsistent with the MM equation, not because the authors considered the enzyme system at mesoscopic concentrations but because ...
arxiv +1 more source
This study investigated the effects of biosynthesized silver nanoparticles (AgNPs) derived from Hypericum perforatum on the cell morphology of Gram‐positive Staphylococcus aureus bacterial cells, with FE‐SEM analysis showing distinct morphological changes in AgNP‐treated S. aureus cells compared to the control group.
Canan Sevinc‐Sasmaz+3 more
wiley +1 more source
Vibrational energy relaxation (VER) of a CD stretching mode in cytochrome c [PDF]
We first review how to determine the rate of vibrational energy relaxation (VER) using perturbation theory. We then apply those theoretical results to the problem of VER of a CD stretching mode in the protein cytochrome c. We model cytochrome c in vacuum as a normal mode system with the lowest-order anharmonic coupling elements. We find that, for the ``
arxiv