Objective To investigate two techniques and outcome in repairing facial concave deficits.Methods Eleven patients with facial concave deformity were included in this study:nine were treated with autologous fat granule injection,1,3 and 5 patients were given fat granules injection fourth,twice and once,respectivly.The other 2 patients were repaired with homolateral temporal fascia flap.Results The implantation by using autologous fat granules in all 9 patients showed excellent results.Homolateral temporal fascia flaps were used in 2 cases,one of which was formed hematoma after operation and scavenged thereafter.All the patients had satisfactory results.Conclusion Both approaches well rehabilitate patients' facial contour,and thus are capable of repairing moderate or minimal facial concave deficit and worth recommendation.

Objective To investigate the role of NF-κB pathway in the development of intrathecal(IT)platelet-activating factor (PAF)-induced hyperalgesia in rats. Methods Sixty-four male SD rats (200-250 g) in which intrathecal catheters were successfully implanted without complications were randomly divided into 6 groups:group Ⅰ received artificial cerebro-spinal fluid (ACSF) 10 μl IT (n = 16); group Ⅱ received PAF 10 μg in ACSF 10 μl IT; group Ⅲ received 0.1% DMSO 2 ml intraperitoneally (IP) (n = 8); group Ⅳ, Ⅴ, Ⅵ received IP SC-514 (a selective IKK-β inhibitor) 10, 50, 100 mg/kg in 0.1% DMSO 2 ml respectively at 2 h before IT PAF. Paw withdrawal threshold to mechanical stimulation (PWMT) and paw withdrawal latency to thermal stimuli (PWTL) were measured before (baseline) and at 5, 15, 30, 45, 60 min and then every 30 min for another 4 h after IT administration. The animals were killed after the last pain threshold measurement at 5 h after IT PAF. The lumbar segment (L4-6) of the spinal cord was removed for determination of TNF-α and IL-lβ content (by ELISA).Results lntrathecal PAF induced tactile allodynia and thermal hyperalgesia rapidly, increased the expression of TNF-α and IL-lβ in lumbar spinal cord. Pretreatment with SC-514 attenuated PAF-induced hyperalgesia and inhibited the increase in TNF-α and IL-1β expression in the spinal cord. Conclusion NF-κB is involved in intrathecal PAF-induced hyperalgesia.