Watumiaji waliosajiliwa tu ndio wanaweza kutafsiri nakala
Ingia / Ingia
In spontaneously beating, isolated guinea pig sinus-atria, veratramine (2.44 microM) slowed the rate of spontaneous depolarization of sinoatrial node cells throughout diastole, markedly slowed the frequency, and often (especially in the presence of high extracellular Ca2+) induced a periodic rhythm.
Watumiaji waliosajiliwa tu ndio wanaweza kutafsiri nakala
Ingia / Ingia
BACKGROUND
Steroidal alkaloids are found in plants of the genus Veratrum. Their toxicity manifests as gastrointestinal symptoms followed by a Bezold-Jarisch reflex: hypopnea, hypotension, and bradycardia. Some Veratrum steroidal alkaloids are also teratogens interfering with the hedgehog-2 signaling
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