Abstract
Pulsed infrared radiation (IR) has been shown to have high spatial selectivity and could potentially be used in auditory and vestibular prostheses. Results from stimulation of cardiomyocytes suggest that pulsed IR evokes intracellular Ca2+ responses. In the present study, we analyzed the response of rat neonatal vestibular and spiral ganglion neurons to infrared radiation (IR), λ = 1863 nm, in vitro. Both types of neurons responded with intracellular [Ca2+]i transients that could be entrained by the low frequency IR pulses (0.25-5 pulses/s). When challenged with an inhibitor of the mitochondrial Na+/Ca2+ exchanger (CGP-37157) and a blocker of mitochondrial Ca2+ uniporter (Ruthenium Red), the IR-evoked responses were blocked or significantly reduced. This suggest that mitochondrial [Ca2+]iflux may be a primary source of the IR transients.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013 |
| Pages | 101-102 |
| Number of pages | 2 |
| DOIs | |
| State | Published - Aug 5 2013 |
| Event | 29th Southern Biomedical Engineering Conference, SBEC 2013 - Miami, FL, United States Duration: May 3 2013 → May 5 2013 |
Other
| Other | 29th Southern Biomedical Engineering Conference, SBEC 2013 |
|---|---|
| Country | United States |
| City | Miami, FL |
| Period | 5/3/13 → 5/5/13 |
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ASJC Scopus subject areas
- Biomedical Engineering
Cite this
Pulsed infrared-evoked intracellular calcium transients in neonatal vestibular and spiral ganglion neurons. / Lumbreras, Vicente; Bas Infante, Esperanza; Gupta, Chhavi; Rajguru, Suhrud M.
Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013. 2013. p. 101-102 6525696.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Pulsed infrared-evoked intracellular calcium transients in neonatal vestibular and spiral ganglion neurons
AU - Lumbreras, Vicente
AU - Bas Infante, Esperanza
AU - Gupta, Chhavi
AU - Rajguru, Suhrud M
PY - 2013/8/5
Y1 - 2013/8/5
N2 - Pulsed infrared radiation (IR) has been shown to have high spatial selectivity and could potentially be used in auditory and vestibular prostheses. Results from stimulation of cardiomyocytes suggest that pulsed IR evokes intracellular Ca2+ responses. In the present study, we analyzed the response of rat neonatal vestibular and spiral ganglion neurons to infrared radiation (IR), λ = 1863 nm, in vitro. Both types of neurons responded with intracellular [Ca2+]i transients that could be entrained by the low frequency IR pulses (0.25-5 pulses/s). When challenged with an inhibitor of the mitochondrial Na+/Ca2+ exchanger (CGP-37157) and a blocker of mitochondrial Ca2+ uniporter (Ruthenium Red), the IR-evoked responses were blocked or significantly reduced. This suggest that mitochondrial [Ca2+]iflux may be a primary source of the IR transients.
AB - Pulsed infrared radiation (IR) has been shown to have high spatial selectivity and could potentially be used in auditory and vestibular prostheses. Results from stimulation of cardiomyocytes suggest that pulsed IR evokes intracellular Ca2+ responses. In the present study, we analyzed the response of rat neonatal vestibular and spiral ganglion neurons to infrared radiation (IR), λ = 1863 nm, in vitro. Both types of neurons responded with intracellular [Ca2+]i transients that could be entrained by the low frequency IR pulses (0.25-5 pulses/s). When challenged with an inhibitor of the mitochondrial Na+/Ca2+ exchanger (CGP-37157) and a blocker of mitochondrial Ca2+ uniporter (Ruthenium Red), the IR-evoked responses were blocked or significantly reduced. This suggest that mitochondrial [Ca2+]iflux may be a primary source of the IR transients.
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U2 - 10.1109/SBEC.2013.59
DO - 10.1109/SBEC.2013.59
M3 - Conference contribution
SN - 9780769550329
SP - 101
EP - 102
BT - Proceedings - 29th Southern Biomedical Engineering Conference, SBEC 2013
ER -