Evidence Details for Fos
PMID Title Journal Year Abstract
24757373 Effects of acupuncture stimulation at different acupoints on formalin-induced pain in rats. Korean J Physiol Pharmacol. 2014 Apr;18(2):121-7. doi: 10.4196/kjpp.2014.18.2.121. Epub 2014 Apr 3. 2014 Apr Acupuncture is the process of stimulating skin regions called meridians or acupoints and has been used to treat pain-related symptoms. However, the pain-relieving effects of acupuncture may be different depending on acupoints. In the present study, the effects of acupuncture on behavioral responses and c-Fos expression were evaluated using a formalin test in male Sprague-Dawley rats in order to clarify the analgesic effects of three different acupoints. Each rat received manual acupuncture at the ST36 (Zusanli), SP9 (Yinlingquan) or BL60 (Kunlun) acupoint before formalin injection. Flinching and licking behaviors were counted by two blinded investigators. Fos-like immunoreactivity was examined by immunohistochemistry in the rat spinal cord. Manual acupuncture treatment at BL60 acupoint showed significant inhibition in flinching behavior but not in licking. Manual acupuncture at ST36 or SP9 tended to inhibit flinching and licking behaviors but the effects were not statistically significant. The acupuncture at ST36, SP9, or BL60 reduced c-Fos expression as compared with the control group. These results suggest that acupuncture especially at the BL60 acupoint is more effective in relieving inflammatory pain than other acupoints."

Evidence Sentence: In the present study, the effects of acupuncture on behavioral responses and c-Fos expression were evaluated using a formalin test in male Sprague-Dawley rats in order to clarify the analgesic effects of three different acupoints.
Evidence Sentence: The acupuncture at ST36, SP9, or BL60 reduced c-Fos expression as compared with the control group.
Evidence Sentence: c-Fos immunohistochemistry
Evidence Sentence: The effects of acupuncture stimulation on c-Fos expressions are presented in Figs.
Evidence Sentence: 4 shows representative photographs of the c-Fos-positive neurons in each group, demonstrating that the activation of c-Fos-positive neurons was remarkably suppressed in the ST36-For, SP9-For and BL60-For groups compared to the formalin-only group.
Evidence Sentence: The observed numbers of c-Fos-positive neurons in the laminae I-II were 403.50+-156.19, 4461+-433.75, 2323.60+-445.27, 2235.20+-254.42, 2305.60+-261.18, and 2958.20+-309.14 in the intact (normal; n=4), formalin-only (n=5), ST36-For (n=5), SP9-For (n=5), BL60-For (n=5), and NA-For (n=5) groups, respectively.
Evidence Sentence: When compared with the intact group (403.50+-156.19), all other groups showed a significant increase in the number of c-Fos-positive neurons statistically (F5,23=14.087, p<0.05, one-way ANOVA; p<0.05, Dunnett's post-hoc multiple comparison).
Evidence Sentence: However, c-Fos expression was significantly decreased in all acupuncture treatment groups compared to the formalin-only group (F4,20=7.238, p<0.05, one-way ANOVA; p<0.05, Dunnett's post-hoc multiple comparison) (Fig.
Evidence Sentence: In the case of laminae III-VI, the numbers of c-Fos-positive neurons were 222+-82.16 (normal), 2107.08+-350.02 (formalin only), 1230.80+-339.82 (ST36-For), 1123.60+-131 (SP9-For), 942.60+-66.67 (BL60-For), and 1801.60+-300.81 (NA-For).
Evidence Sentence: In the formalin-only (2107.08+-350.02), ST36-For (1230.80+-339.82) and NA-For (1801.60+-300.81) groups, c-Fos expression was significantly increased (F5,23=6.470, p<0.05) compared to the normal group (222.02+-82.16).
Evidence Sentence: When c-Fos expression was assessed between the formalin-only group and the rest of the four formalin-treated and acupuncture groups, the c-Fos expression was significantly suppressed only in the BL60-For group (F4,20=3.453, p<0.05, one-way ANOVA; p<0.05, Dunnett's post-hoc multiple comparison) (Fig.
Evidence Sentence: All groups excluding the normal group (625.50+-238.24) showed a remarkable increase of c-Fos expression statistically (F4,20=6.470, p<0.05, one-way ANOVA; p<0.05, Dunnett's post-hoc multiple comparison).
Evidence Sentence: Fos-like immunoreactivity was examined by immunohistochemistry in the rat spinal cord.
Evidence Sentence: The values from laminae I to VI in c-Fos-positive neurons were 625.50+-238.24 (normal), 6569.00+-703.25 (Formalin), 3554.40+-777.81 (ST36-For), 3358.80+-331.15 (SP9-For), 3248.20+-315.02 (BL60-For), and 4759.80+-290.66 (NA-For).
Evidence Sentence: Except for the NA-For group, c-Fos expressions in acupuncture-treated groups were significantly lower compared to the formalin only group (F4,20=7.096, p<0.05, one-way ANOVA; p<0.05, Dunnett's post-hoc multiple comparison) (Fig.