[Decreasing effect of electro-acupuncture at Sanyin points on inflammatory cytokines in autoimmune prostatitis rats]

To observe the changes of inflammatory cytokines in autoimmune prostatitis (AIP) rats treated by electro-acupuncture (EA) at Sanyin points.

We selected 40 Wistar male rats in this study, 10 as normal controls, and the other 30 made AIP models by intradermal injection of protein purification liquid from the prostate of allogeneic male rats with dual immune adjuvant. Then we randomly divided the AIP models into a model, a Cernilton control and an EA group of equal number, the latter two groups treated by Cernilton enema and EA, respectively. After 15 days of treatment, all the animals were sacrificed for detection of the levels of TNF-alpha, iNOS, MDA and T-AOC in the prostate tissue.

Compared with the normal controls, the model rats showed significantly elevated TNF-alpha expression ([15.31 +/- 1.36] vs [32.20 +/- 1.65] pg/ml, P < 0.01), iNOS activity ([0.81 +/- 0.33] vs [1.25 +/- 0.23] U/ml, P < 0.01) and MDA content ([0.66 +/- 0.14] vs [0.91 +/- 0.21] nmol/ml, P < 0.05), but markedly reduced T-AOC activity ([1.56 +/- 0.16] vs [1.11 +/- 0.15] U/ml, P < 0.01). In comparison with the model group, the EA group exhibited significantly reduced levels of TNF-alpha ([17.32 +/- 2.69 ] pg/ml, P < 0.01), iNOS ([0.98 +/- 0.5 ] U/ml, P < 0.05) and MDA ([0.70 +/- 0.20] nmol/ml, P < 0.05), but remarkably increased level of T-AOC ([1.44 +/- 0.26] U/ml, P < 0.05).

Electro-acupuncture at Sanyin points can protect the prostate tissue from morphological damage and reduce inflammatory reaction by decreasing pro-inflammatory cytokine activity, vascular permeability and inflammatory cell infiltration and increasing the activity of the antioxidant defense system.