نتایج جستجو برای: compound action potential cap
تعداد نتایج: 1712580 فیلتر نتایج به سال:
Norepinephrine (NE) is released in excess into the extracellular space during oxygen-glucose deprivation (OGD) in brain, increasing neuronal metabolism and aggravating glutamate excitoxicity. We used isolated rat optic nerve and spinal cord dorsal columns to determine whether the noradrenergic system influences axonal damage in white matter. Tissue was studied electrophysiologically by recordin...
Lippia sidoides Cham is a typical herb species of Northeast Brazil with widespread use in folk medicine. The major constituents of the essential oil of L. sidoides (EOLs) are thymol, p-cymene, myrcene, and caryophyllene. Several studies have shown that the EOLs and its constituents have pharmacological effects, including antibacterial, anti-inflammatory, antioxidant and neuroprotective activity...
Sound-evoked compound action potential (CAP), which captures the synchronous activation of the auditory nerve fibers (ANFs), is commonly used to probe deafness in experimental and clinical settings. All ANFs are believed to contribute to CAP threshold and amplitude: low sound pressure levels activate the high-spontaneous rate (SR) fibers, and increasing levels gradually recruit medium- and then...
23 Sound-evoked compound action potential (CAP), which captures the synchronous activation 24 of the auditory nerve fibres (ANFs), is commonly used to probe deafness in experimental and 25 clinical settings. All ANFs are believed to contribute to CAP threshold and amplitude: low 26 sound-pressure levels activate the high-spontaneous rate (SR) fibres, and increasing levels 27 gradually recruit m...
The action potential (AP) conduction in nerve fibers plays a crucial role transmitting nociceptive information from the periphery to cerebral cortex. Nerve AP inhibition possibly results analgesia. It is well-known that many analgesics suppress and voltage-dependent sodium potassium channels are involved producing APs. compound (CAP) recorded bundle of guide for knowing if affect conduction. Th...
Although the endocrine disruptor bisphenol A (BPA) is reported to inhibit nerve conduction, the underlying mechanisms are unclear. Therefore, in the present study, we examined the effect of BPA on compound action potentials (CAPs) recorded from the frog sciatic nerve using the air-gap method. Treatment of the sciatic nerve with BPA (0.5 mM) for 20 min reduced the peak amplitude of the CAP by ap...
Mild hypoxia has an unexpected influence on the compound action potential (CAP) compared to its effect on the cochlear microphonic (CM). While the CM decreases in amplitude near threshold, the low-level CAP increases in amplitude by as much as 400% and decreases in latency and width. The magnitude of latency decrease is dependent on the center frequency of 1/3 octave band-filtered clicks used a...
In this study, we used a novel technique to study reflex wind-up when the spinal cord is intact and following an acute spinal transection. Specifically, we evaluated reflex responses evoked by a series of 10 electrical pulses to the tibial or superficial peroneal nerves in 9 decerebrate adult cats, before and after an acute spinal transection. Electromyograms were recorded in four hindlimb musc...
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