Results 21 to 30 of about 277,934 (283)

Solvent reaction coordinate for an S$_N$2 reaction [PDF]

open access: yesJ. Chem. Phys. 153, 024103 (2020), 2020
We study the prototypical SN2 reaction Cl$^-$ + CH$_3$Cl $\to$ CH$_3$Cl + Cl$^-$ in water using quantum mechanics / molecular mechanics (QM/MM) computer simulations with transition path sampling and inertial likelihood maximization. We have identified a new solvent coordinate to complement the original atom-exchange coordinate used in the classic ...
arxiv   +1 more source

FUNCTIONAL ACTIVITY OF COMPLEMENT CLASSIC WAY ACTIVATION COMPONENTS AND ART1CULAS DAMAGE IN RHEUMATOID ARTRITIS

open access: yesНаучно-практическая ревматология, 2000
A relationship between X - ray joints changes and functional activity of classical pathway complement components in R4 was investigated. 31 patients with the moderate activity ofRA (ARA 1987) have been examined. Disease duration was 4,5lyear±3,84 (SD). X-
D. L. Goryachev, T. V. Lebedeva
doaj   +1 more source

Alternative Complement Pathway Inhibition Abrogates Pneumococcal Opsonophagocytosis in Vaccine-Naïve, but Not in Vaccinated Individuals

open access: yesFrontiers in Immunology, 2021
To assess the relative contribution of opsonisation by antibodies, classical and alternative complement pathways to pneumococcal phagocytosis, we analyzed killing of pneumococci by human blood leukocytes collected from vaccine-naïve and PCV13-vaccinated ...
Lukas Muri   +10 more
doaj   +1 more source

Complementary Roles of the Classical and Lectin Complement Pathways in the Defense against Aspergillus fumigatus

open access: yesFrontiers in Immunology, 2016
Aspergillus fumigatus infections are associated with a high mortality rate for immunocompromised patients. The complement system is considered to be important in protection against this fungus, yet the course of activation is unclear.
Anne Rosbjerg   +5 more
doaj   +1 more source

Early complementopathy predicts the outcomes of patients with trauma

open access: yesTrauma Surgery & Acute Care Open, 2019
Background Complementopathy (rapid complement activation and consumption after trauma) has been reported in trauma patients, but the underlying mechanism of these phenomena and their clinical significance remain unclear. This study aimed to determine the
Bin Liu   +6 more
doaj   +1 more source

Nucleation pathway of calcium sulfate hemihydrate (bassanite) from solution: implications for calcium sulfates on Mars [PDF]

open access: yesJ. Phys. Chem. C 2020, 2020
CaSO4 minerals (i.e. gypsum, anhydrite and bassanite) are widespread in natural and industrial environments. During the last several years, a number of studies have revealed that nucleation in the CaSO4-H2O system is non-classical, where the formation of crystalline phases involves several steps.
arxiv   +1 more source

Borrelia miyamotoi FbpA and FbpB Are Immunomodulatory Outer Surface Lipoproteins With Distinct Structures and Functions

open access: yesFrontiers in Immunology, 2022
Pathogens that traffic in the blood of their hosts must employ mechanisms to evade the host innate immune system, including the complement cascade. The Lyme disease spirochete, Borreliella burgdorferi, has evolved numerous outer membrane lipoproteins ...
Charles E. Booth   +3 more
doaj   +1 more source

Development of a C3c-based ELISA method for the determination of anti-complementary potency of Bupleurum polysaccharides

open access: yesActa Pharmaceutica Sinica B, 2015
Traditionally, determination of inhibitory potency of complement inhibitors is performed by the hemolytic assay. However, this assay is not applicable to the lectin pathway, thus impeding the understanding of complement inhibitors against the overall ...
Mulu Wu   +3 more
doaj   +1 more source

The classical pathway triggers pathogenic complement activation in membranous nephropathy

open access: yesNature Communications, 2023
It is generally thought that complement activation in human membranous nephropathy (MN) occurs predominantly via the lectin or alternative pathway. Here, the authors show that the classical pathway is the dominant form of complement activation in MN and ...
Larissa Seifert   +23 more
doaj   +1 more source

Chimeric Proteins Containing MAP-1 and Functional Domains of C4b-Binding Protein Reveal Strong Complement Inhibitory Capacities

open access: yesFrontiers in Immunology, 2018
The complement system is a tightly regulated network of proteins involved in defense against pathogens, inflammatory processes, and coordination of the innate and adaptive immune responses.
Cecilie E. Hertz   +6 more
doaj   +1 more source

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