[The effect of a number of pharmacological preparations on Na-H metabolic activity and on the passive permeability for protons of the sarcolemma of the isolated heart].
Alabovskiĭ. V V VV; Nikolaevskiĭ. V A VA; Reznikov. K M KM; Vinokurova. O V OV; Putilina. V V VV; Vinokurov. A A AA
Key Findings
- Thymogen had no impact on Na‑H exchange activity in isolated rat heart cells.
- Thymogen did not alter the passive proton permeability of the heart cell membrane.
- Lidocaine, procaine, and hydrocortisone hemisuccinate reduced proton permeability, but thymogen did not contribute to this effect.
Practical Outcomes
- For biohackers and self‑experimenters, thymogen appears irrelevant to heart ion balance or anti‑arrhythmic strategies. No dosage adjustments or new protocols are suggested based on this study, and it offers little actionable insight for longevity or performance goals.
Summary
In a lab study on isolated rat hearts, the peptide thymogen did not change the heart cell's sodium‑hydrogen exchange activity or the membrane's passive proton leak. In other words, thymogen showed no direct effect on these cardiac ion‑transport processes.
Abstract
The influence of the local anesthetics hydrocortisone hemisuccinate and peptide drugs (thymogen and dalargin) on Na-H exchange activity and passive proton permeability of the sarcolemma was studied in experiments on isolated rat hearts. It was established that neither local anesthetics or hydrocortisone hemisuccinate, nor peptide drugs affected Na-H exchange activity. Lidocaine (5 mM), procaine (5 mM), hydrocortisone hemisuccinate (500-750 mg/l) inhibited sarcolemmal passive proton permeability by 40-70%. Aetaphone in the micromolar range attenuated the role of these effects in the antiarrhythmic action of local anesthetics and aetaphone.
Study Information
pubmed
1994