Results 21 to 30 of about 40,647 (354)
Release of vasopressin from isolated permeabilized neurosecretory nerve terminals is blocked by the light chain of botulinum A toxin [PDF]
, 1990 The intracellular action on exocytosis of botulinim A toxin and constituent chains was studied using permeabilized isolated nerve endings from the rat neural lobe. The release of the neuropeptide vasopressin was measured by radioimmunoassay.
Dayanithi, G. +4 more
core +6 more sources
Coexistence of Competing Microbial Strains under Twofold Environmental Variability and Demographic Fluctuations [PDF]
New J. Phys 25, 123010 (2023), 2023 Microbial populations generally evolve in volatile environments, under conditions fluctuating between harsh and mild, e.g. as the result of sudden changes in toxin concentration or nutrient abundance. Environmental variability thus shapes the long-time population dynamics, notably by influencing the ability of different strains of microorganisms to ...
arxiv +1 more source
Botulinum Toxin for Pain [PDF]
Drugs in R & D, 2008 Botulinum toxin (BTX) injection is being increasingly used 'off label' in the management of chronic pain. Data support the hypothesis of a direct analgesic effect of BTX, different to that exerted on muscle. Although the pain-reducing effect of BTX is mainly due to its ability to block acetylcholine release at the synapse, other effects on the nervous ...
Valeria Tugnoli, Roberto Casale
openaire +3 more sources
Clostridial C3 Toxins Enter and Intoxicate Human Dendritic Cells
Toxins, 2020 C3 protein toxins produced by Clostridium (C.) botulinum and C. limosum are mono-ADP-ribosyltransferases, which specifically modify the GTPases Rho A/B/C in the cytosol of monocytic cells, thereby inhibiting Rho-mediated signal transduction in monocytes,
Maximilian Fellermann +12 more
doaj +1 more source
Неврология, нейропсихиатрия, психосоматика, 2022 Currently, eight natural serotypes of botulinum neurotoxin (BNT-A-G, -X) are known. The mechanism of action of all BNT serotypes is presynaptic blockade of SNARE transport proteins (Soluble N-ethylmaleimide-sensitive factor [NSF] Attachment Protein ...
R. K. Shikhkerimov, E. V. Istomina
doaj +1 more source
Clostridium botulinum Type E Toxins Bind to Caco-2 Cells by a Different Mechanism from That of Type A Toxins [PDF]
, 2012 Cultured Clostridium botulinum strains produce progenitor toxins designated as 12S, 16S, and 19S toxins. The 12S toxin consists of a neurotoxin (NTX, 7S) and a non-toxic non-hemagglutinin (NTNH).
Ma, Shaobo +6 more
core +1 more source
Cost minimization analysis of BoNT-As in the treatment of upper limb spasticity and cervical dystonia [PDF]
, 2016 Botulinum toxin type A (BoNT-A) injections are recommended for the management of upper limb spasticity (ULS) and cervical dystonia (CD). The main aim of this cost minimization analysis (CMA) was to compare the annual cost per patient for three BoNT-As ...
Bartolomei, Luigi +15 more
core +1 more source
Bacterial Toxins, Current Perspectives
Toxins, 2020 Toxins are the major pathogenicity factors produced by numerous bacteria involved in severe diseases in humans and animals. Certain pathogenic bacteria synthesize only one toxin which is responsible for all the symptoms and outcome of the disease.
Michel R. Popoff
doaj +1 more source
Toxin-mediated competition in weakly motile bacteria [PDF]
2019, J. Theor. Biol. 480 , 205-217, 2019 Many bacterial species produce toxins that inhibit their competitors. We model this phenomenon by extending classic two-species Lotka-Volterra competition in one spatial dimension to incorporate toxin production by one species. Considering solutions comprising two adjacent single-species colonies, we show how the toxin inhibits the susceptible species ...
arxiv +1 more source
Using Multiscale Molecular Dynamics Simulations to Obtain Insights into Pore Forming Toxin Mechanisms [PDF]
Methods in Enzymology (Chapter Sixteen), 2021, 2020 Pore forming toxins (PFTs) are virulent proteins released by several species, including many strains of bacteria, to attack and kill host cells. In this article, we focus on the utility of molecular dynamics (MD) simulations and the molecular insights gleaned from these techniques on the pore forming pathways of PFTs.
arxiv +1 more source