Results 71 to 80 of about 2,454,279 (380)

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Comparative effective dose of ciprofol and propofol in suppressing cardiovascular responses to tracheal intubation

open access: yesScientific Reports
Ciprofol, a novel γ-aminobutyric acid receptor agonist, outperforms propofol with minimal cardiovascular effects, higher potency, reduced injection pain, and a broader safety margin.
Min Liao   +5 more
doaj   +1 more source

Serum α-Klotho associated with oral health among a nationally representative sample of US adults

open access: yesFrontiers in Endocrinology, 2022
BackgroundLow klotho is associated with aging-related traits. However, no study has assessed the association between klotho and oral health in a large sample of population.
Guo-Qiang Chen   +5 more
doaj   +1 more source

Rat mammary carcinogenesis following neutron- or X-radiation [PDF]

open access: yes, 1974
Female 61 to 63 - day - old Sprague-Dawley rats were exposed once to a single dose of either 0.43 - MeV neutrons or 250 - kVX - rays . For neutrons 23 rats were exposed in plastic tubes rotated around and 31 c m from a water-cooled tritium impregnated ...
Bond, V. P.   +8 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Correlation between cardiometabolic index and stroke in middle-aged and older adults

open access: yesZhongguo linchuang yanjiu
Objective To explore the relationship between cardiac metabolic index (CMI) and stroke in middle-aged and elderly individuals based on a large sample cohort study. Methods Data were obtained from the China Health and Retirement Longitudinal Study (CHARLS)
YU Yang, SHA Ou
doaj   +1 more source

Beyond two-stage models for lung carcinogenesis in the Mayak workers: Implications for Plutonium risk

open access: yes, 2015
Mechanistic multi-stage models are used to analyze lung-cancer mortality after Plutonium exposure in the Mayak-workers cohort, with follow-up until 2008.
Eidemüller, Markus   +2 more
core   +2 more sources

A Nonparametric Method for the Derivation of α/β Ratios from the Effect of Fractionated Irradiations [PDF]

open access: yes, 1991
Multifractionation isoeffect data are commonly analysed under the assumption that cell survival determines the observed tissue or tumour response, and that it follows a linear-quadratic dose dependence.
A.M. Kellerer   +19 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Association between exposure to noise and risk of hypertension: A meta-analysis of observational epidemiological studies [PDF]

open access: yes, 2017
Background and Objective: An increasing amount of original studies suggested that exposure to noise could be associated with the risk of hypertension, but the results remain inconsistent and inconclusive.
Cao, Shiyi   +9 more
core   +1 more source

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