Effect of Flow Rate and PH on Muscle Acidosis

Summary

This proposed study suggests that peripheral tissue acidosis sensed by the somatosensory system (sngception) would evoke the sng perception in the brain. This hypothesis is based on investigators preliminary data that the peripheral muscle acidosis will evoked the central sng perception. In this study, investigators want to determine if there is the correlation between the flow rate of drug application and sng or pain. Also, they try to find if the pH of a solution will affect muscle acidosis.

Timeline

Start

2019-07-04

Primary completion

2020-01-02

Completion

2023-12-31

Outcome

Outcome not reported

Stopped: “TFDA terminated this study.”

Publications

• Background Issberner U, Reeh PW, Steen KH. Pain due to tissue acidosis: a mechanism for inflammatory and ischemic myalgia? Neurosci Lett. 1996 Apr 26;208(3):191-4. doi: 10.1016/0304-3940(96)12576-3.
• Background Law LAF, Sluka KA, McMullen T, Lee J, Arendt-Nielsen L, Graven-Nielsen T. Acidic buffer induced muscle pain evokes referred pain and mechanical hyperalgesia in humans. Pain. 2008 Nov 30;140(2):254-264. doi: 10.1016/j.pain.2008.08.014. Epub 2008 Oct 2.
• Background Lin JH, Hung CH, Han DS, Chen ST, Lee CH, Sun WZ, Chen CC. Sensing acidosis: nociception or sngception? J Biomed Sci. 2018 Nov 29;25(1):85. doi: 10.1186/s12929-018-0486-5.
• Background Fujii Y, Ozaki N, Taguchi T, Mizumura K, Furukawa K, Sugiura Y. TRP channels and ASICs mediate mechanical hyperalgesia in models of inflammatory muscle pain and delayed onset muscle soreness. Pain. 2008 Nov 30;140(2):292-304. doi: 10.1016/j.pain.2008.08.013. Epub 2008 Oct 1.
• Background Chen CC, Wong CW. Neurosensory mechanotransduction through acid-sensing ion channels. J Cell Mol Med. 2013 Mar;17(3):337-49. doi: 10.1111/jcmm.12025. Epub 2013 Mar 14.
• Background Chen WN, Lee CH, Lin SH, Wong CW, Sun WH, Wood JN, Chen CC. Roles of ASIC3, TRPV1, and NaV1.8 in the transition from acute to chronic pain in a mouse model of fibromyalgia. Mol Pain. 2014 Jun 23;10:40. doi: 10.1186/1744-8069-10-40.

Drugs

Indications