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Updated: Mar 26, 2026

Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
Antioxidant activity of linalool in patients with carpal tunnel syndrome
Geun-Hye Seol1, Purum Kang1, Hui Su Lee1
1Department of Basic Nursing Science, School of Nursing, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
Background:
Carpal tunnel syndrome (CTS) is a common peripheral neuropathy and ischemic-reperfusion injury. Oxidative stress is considered a major cause of CTS. Linalool, a component of essential oils, has antioxidant activity. This study was designed to determine the effects of linalool inhalation on oxidative stress in patients with CTS.
Methods:
This double-blind, placebo-controlled study assessed the effects of linalool inhalation on oxidative stress in patients with CTS. Thirty-seven subjects, with and without CTS, were randomized to inhalation of 1% linalool or carrier oil. 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, systolic blood pressure (sBP), diastolic blood pressure (dBP) and pulse rate were analyzed.
Results:
DPPH inhibition was significantly higher in both experimental groups than in their respective controls. Moreover inhalation of linalool reduced sBP, dBP and pulse rate in the CTS group, and pulse rate in the non-CTS group. However, there were no significant differences among the study groups in nitrite levels, sBP, dBP and pulse rate.
Conclusions:
Inhalation of linalool increases antioxidative activity and reduces blood pressure and pulse rate in patients with CTS.

