- |||||||||| hydroxocobalamin (vit B12) / Generic mfg.
Review, Journal: Vasoplegic Syndrome and Anaesthesia: A Narrative Review. (Pubmed Central) - Aug 17, 2023 Available treatments involve volume and inotropes administration, vasopressin, methylene blue, hydroxocobalamin, Ca++, vitamin C, and thiamine, and should also restore vascular tone and improve vasoplegia...It is challenging for an anaesthesiologist to consider this syndrome's diagnosis and manage its treatment. Our review aims to review the diagnosis, predisposing factors, pathophysiology, treatment, and anaesthesia approach of VS during anaesthesia and to suggest a treatment algorithm.
- |||||||||| Journal, IO biomarker: Plasma Membrane Channel TRPM4 Mediates Immunogenic Therapy-Induced Necrosis. (Pubmed Central) - Jul 31, 2023
Thus, TRPM4 plays a pivotal role in sustaining lethal a-UPR hyperactivation that mediates the anticancer activity of diverse necrosis-inducing therapies. A genome-wide CRISPR screen reveals a pivotal role for TRPM4 in cell death and immune activation following treatment with diverse necrosis-inducing anticancer therapies, which could facilitate development of necrosis-based cancer immunotherapies.
- |||||||||| Vampex (carbenoxolone gel) / York Pharma
Preclinical, Journal: Ca Dynamics of Gap Junction Coupled and Uncoupled Deiters' Cells in the Organ of Corti in Hearing BALB/c Mice. (Pubmed Central) - Jul 18, 2023 We have compared the ATP-evoked Ca transients and the effect of two different gap junction (GJ) blockers (octanol and carbenoxolone, CBX) on the Ca transients in DCs located in the apical and middle turns of the hemicochlea preparation of BALB/c mice (P14-19)...The cochlear turn-dependent effect of CBX might be the result of the differing connexin isoform composition of GJs along the tonotopic axis. The contribution of IP-mediated Ca signalling inhibition by CBX cannot be excluded.
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Journal: ATP increases head volume in capacitated human sperm via a purinergic channel. (Pubmed Central) - Jul 18, 2023 We examined the involvement of purinergic receptors (PRs) P2X2R and P2X4R in ATPVI using their co-agonists progesterone and Ivermectin (Iver), and Cu, which co-activates P2X2Rs and inhibits P2X4Rs...ATP increased the concentration of intracellular Ca ([Ca]) in >45% of individual sperm, most of which underwent AR monitored using FM4-64. Our findings suggest that human sperm P2X4R activation by ATP increases [Ca] mainly due to Ca influx which leads to a sperm head volume increase, likely involving acrosomal swelling, and resulting in AR.
- |||||||||| Journal: Phosphate toxicity and SERCA2a dysfunction in sudden cardiac arrest. (Pubmed Central) - Jun 15, 2023
However, current technology lacks the ability to directly measure this pathophysiological mechanism in active myocardium, and further research is needed to confirm phosphate toxicity as a risk factor in individuals with sudden cardiac arrest. Moreover, phosphate toxicity may be reduced through modification of dietary phosphate intake, with potential for employing low-phosphate dietary interventions to reduce the risk of sudden cardiac arrest.
- |||||||||| Journal: ATP Consumption Is Coupled with Endocytosis in Exudated Neutrophils. (Pubmed Central) - May 31, 2023
Furthermore, data from the NLR family pyrin domain containing three knockout mice suggest that inflammasome activation is not involved in neutrophil endocytosis or concomitant ATP consumption. To summarize, these molecular events occur via endocytosis, which is closely related to ATP-centered energy metabolism.
- |||||||||| Journal: Molecular Docking and Molecular Dynamics Simulation of New Potential JAK3 Inhibitors. (Pubmed Central) - May 26, 2023
The above findings reveal the important role of protecting plant species diversity in support of chemical diversity and potential sources of new therapeutics. These findings reveal the mechanism of 1-phenylimidazolidine-2-one derivatives on JAK3 protein and provide a relatively solid theoretical basis for the development and structural optimization of JAK3 protein inhibitors.
- |||||||||| Germanin (suramin) / Optimum Therap
Journal: Extracellular histone proteins activate P2XR7 channel current. (Pubmed Central) - May 22, 2023 As with ATP-evoked P2XR7 currents, histone-evoked currents were inhibited by non-selective P2XR7 antagonists (Suramin, PPADS, and TNP-ATP)...These data demonstrate that P2XR7 is necessary and sufficient for histone-evoked inward cation currents in a heterologous expression system. These results provide insight into a new allosteric mechanism of P2XR7 activation by histone proteins.
- |||||||||| Review, Journal: Role of the interaction between troponin T and AMP deaminase by zinc bridge in modulating muscle contraction and ammonia production. (Pubmed Central) - May 15, 2023
When a 95-residue N-terminal fragment is removed from AMPD by trypsin, simulating in vitro the calpain action, rabbit fast TnT or its phosphorylated 50-residue N-terminal peptide binds AMPD restoring the inhibition by ATP. Taking in consideration that the N-terminus of TnT expressed in human as well as rabbit white muscle contains a zinc-binding motif, we suggest that TnT might mimic the regulatory action of the inhibitory N-terminal domain of AMPD due to the presence of a zinc ion connecting the N-terminal and C-terminal regions of the enzyme, indicating that the two proteins might physiologically associate to modulate muscle contraction and ammonia production in fast-twitching muscle under strenuous conditions.
- |||||||||| Journal: Bacterial Persister Cells: Mechanisms of Formation, Control, and Eradication. (Pubmed Central) - May 12, 2023
However, eradicating persistent cells is challenging as the specific molecular mechanisms that initiate their formation remain fuzzy and unknown. Here we reviewed and summarized the current understanding of how bacterial persister cells are formed, controlled, and destroyed.
- |||||||||| Journal: Different cold tolerances among three strains of large yellow croaker: related to antioxidant defense and energy metabolism. (Pubmed Central) - Apr 28, 2023
Nrf2 and AMPK gene expressions were correlated with antioxidant and energy metabolism mRNA levels, respectively, suggesting Nrf2 and AMPK might participate in the modulation of target genes during the cold-stress adaptation. In conclusion, low temperature tolerance of fish depended on the antioxidant defense and energy metabolism efficiency, which contributes to understanding the underlying mechanisms of cold adaptation in large yellow croaker.
- |||||||||| Sirturo (bedaquiline) / J&J, Pharmstandard, piceatannol / New York Medical College, Kyushu University
Review, Journal: Inhibitors of ATP Synthase as New Antibacterial Candidates. (Pubmed Central) - Apr 28, 2023 However, each of these inhibitors target ATP synthase differently, and their co-administration with antibiotics increases the susceptibility of pathogenic bacteria. After a brief description of the structure and function of ATP synthase, we aim in this review to highlight therapeutic applications of the major bacterial ATP synthase inhibitors, including animal's venoms, and to emphasize their importance in decreasing the activity of this enzyme and subsequently eradicating resistant bacteria as ATP synthase is their source of energy.
- |||||||||| Journal: Membrane Potential-requiring Succinate Dehydrogenase Constitutes the Key to Propionate Oxidation and Is Unique to Syntrophic Propionate-oxidizing Bacteria. (Pubmed Central) - Apr 25, 2023
These chemicals inhibited hydrogen production, indicating that membrane-bound SDH requires a membrane potential for succinate oxidation, and this membrane potential is maintained by ATP synthase. In addition, the phylogenetic distribution of the flavin adenine dinucleotide-binding subunit and conserved amino acid sequences of the cytochrome b subunit of SDHs in propionate-oxidizing bacteria suggests that membrane-bound SDHs possess specific conserved amino acid residues that are strongly associated with efficient succinate oxidation in syntrophic propionate-oxidizing bacteria.
- |||||||||| Journal: Assessing the Benefits and Costs of the Hydrogen Cyanide Antiherbivore Defense in Trifolium repens. (Pubmed Central) - Mar 30, 2023
Our study provides evidence that the benefits of HCN defense against herbivores are temperature dependent, and freezing may inhibit ATP production in cyanogenic plants, but the physiological performance of all plants recovered quickly following short-term freezing. These results contribute to understanding how varying environments alter the benefits and costs of defense in a model system for the study of plant chemical defenses against herbivores.
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