Evidence map›Paper›PMID 30618546›Full record

ArticleFrontiers in neuroscience2018

Neuropeptides SP and CGRP Underlie the Electrical Properties of Acupoints.

Yu Fan, Do-Hee Kim, Yeonhee Ryu, Suchan Chang, Bong Hyo Lee, Chae Ha Yang, Hee Young Kim

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Acupoint Sensitivity in Health and Disease: A Systematic Review.Journal of integrative and complementary medicine · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Yu FanDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Do-Hee KimDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Yeonhee RyuKorean Medicine Fundamental Research Division, Korea Institute of Oriental Medicine, Daejeon, South Korea.
Suchan ChangDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Bong Hyo LeeDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Chae Ha YangDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Hee Young KimDepartment of Physiology, College of Korean Medicine, Daegu Haany University, Daegu, South Korea.
Daegu Haany University · KRKorea Institute of Oriental Medicine · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Electrical skin measurements at acupuncture points (acupoints) have been utilized as a diagnostic and therapeutic aid for more than 50 years. Although acupoints are described as having distinct electrical properties, such as high conductance and low impedance, the underlying mechanisms are currently unknown. The present study investigated in a rat model of hypertension whether the high conductance at acupoints is a result of the release of the neuropeptides substance P (SP) and calcitonin gene-related peptide (CGRP) during neurogenic inflammation in the referred pain area. When plasma extravasation from neurogenic inflammation was examined by exploring the leakage of intravenously injected Evans blue dye (EBD) to the skin, extravasated EBD was found most frequently in acupoints on the wrist. The increased conductance and temperature at these acupoints occurred during the development of hypertension. The increase in conductance and plasma extravasation at acupoints in hypertensive rats was ablated by cutting median and ulnar nerves, blocking small diameter afferent fibers with resiniferatoxin (RTX) injection into median and ulnar nerves, or antagonizing SP or CGRP receptors in acupoints. In turn, intradermal injection of SP or CGRP resulted in increased conductance and plasma extravasation in naïve rats. Elevated levels of SP and CGRP were found in the acupoints of hypertensive rats. These findings suggest that the high conductance at acupoints is due to vascular leakage following local release of SP and CGRP during neurogenic inflammation.

Indexed as

acupointsCGRPelectrical propertiesEvans blue dyeneurogenic inflammationplasma extravasationskin conductancesubstance P

Identifiers

PMID30618546
PMCPMC6299809
OpenAlexW2904219651

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.