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Old 04-11-2015, 04:06 PM
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mrsD mrsD is offline
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Join Date: Aug 2006
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mrsD mrsD is offline
Wisest Elder Ever
mrsD's Avatar
 
Join Date: Aug 2006
Location: Great Lakes
Posts: 33,508
15 yr Member
Lightbulb

Yes, aspirin works the best for me. I also have arthritis...so I think compression is an issue for me these days. My original PN was from hypothyroidism.

AlkaSeltzer is very nice, as the bicarb blocks pain receptors for a short period too. There have been some papers on the acidic nature of pain... at the receptor level.
example:
Quote:
Handb Exp Pharmacol. 2009;(194):283-332. doi: 10.1007/978-3-540-79090-7_9.
Acid-sensitive ion channels and receptors.
Holzer P1.
Author information
Abstract

Acidosis is a noxious condition associated with inflammation, ischaemia or defective acid containment. As a consequence, acid sensing has evolved as an important property of afferent neurons with unmyelinated and thinly myelinated nerve fibres. Protons evoke multiple currents in primary afferent neurons, which are carried by several acid-sensitive ion channels. Among these, acid-sensing ion channels (ASICs) and transient receptor potential (TRP) vanilloid-1 (TRPV1) ion channels have been most thoroughly studied. ASICs survey moderate decreases in extracellular pH, whereas TRPV1 is activated only by severe acidosis resulting in pH values below 6. Two-pore-domain K(+) (K(2P)) channels are differentially regulated by small deviations of extra- or intracellular pH from physiological levels. Other acid-sensitive channels include TRPV4, TRPC4, TRPC5, TRPP2 (PKD2L1), ionotropic purinoceptors (P2X), inward rectifier K(+) channels, voltage-activated K(+) channels, L-type Ca(2+) channels, hyperpolarization-activated cyclic nucleotide gated channels, gap junction channels, and Cl(-) channels. In addition, acid-sensitive G protein coupled receptors have also been identified. Most of these molecular acid sensors are expressed by primary sensory neurons, although to different degrees and in various combinations. Emerging evidence indicates that many of the acid-sensitive ion channels and receptors play a role in acid sensing, acid-induced pain and acid-evoked feedback regulation of homeostatic reactions. The existence and apparent redundancy of multiple pH surveillance systems attests to the concept that acid-base regulation is a vital issue for cell and tissue homeostasis. Since upregulation and overactivity of acid sensors appear to contribute to various forms of chronic pain, acid-sensitive ion channels and receptors are considered as targets for novel analgesic drugs. This approach will only be successful if the pathological implications of acid sensors can be differentiated pharmacologically from their physiological function.

PMID:
19655111
[PubMed - indexed for MEDLINE]
PMCID:
PMC4359897

Free PMC Article
from http://www.ncbi.nlm.nih.gov/pubmed/19655111
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