艾灸血清对体外人黑素细胞增殖、黑素含量、酪氨酸酶活性的影响

目的研究结束艾灸治疗后1个月、2个月、3个月豚鼠血清对体外培养人黑素细胞增殖、黑素含量、酪氨酸酶活性的影响。方法将50只豚鼠随机分为5组,每组10只,分别为空白对照组、T-1组(艾灸治疗结束后即刻)、T-2组(艾灸治疗结束后1个月)、T-3组(艾灸治疗结束后2个月)、T-4组(艾灸治疗结束后3个月)。各组豚鼠背部脱毛约2cm×2cm,除空白对照组外,其余4组豚鼠均进行艾灸治疗,取穴为经外奇穴“灸癜风”和“阿是穴”。空白对照组仅采用同法固定,不进行艾灸。比较各组艾灸血清对体外培养人黑素细胞增殖、黑素含量、酪氨酸酶活性的影响。结果与空白对照组比较,T-1组的5%艾灸血清、T-2组的5%及10%艾灸血清均能够促进人黑素细胞增殖(P<0.05),T-2组5%艾灸血清的细胞增殖高于T-1组5%艾灸血清(P<0.05),T-2组5%艾灸血清的细胞增殖高于T-2组10%艾灸血清(P<0.05)。与空白对照组比较,T-1组、T-2组、T-3组和T-4组的艾灸血清均能够增加人黑素细胞中的黑素含量(P<0.05),T-2组的人黑素细胞中的黑素含量分别高于T-1组、T-3组和T-4组(P<0.05)。与空白对照组相比,T-2组、T-3组的艾灸血清可增强人黑素细胞中酪氨酸酶活性(P<0.05),T-2组的人黑素细胞中的酪氨酸酶活性高于T-3组(P<0.05)。结论艾灸血清可有效促进体外培养人黑素细胞增殖、黑素含量和酪氨酸酶活性,而且这种影响作用在艾灸治疗结束后3个月都存在,尤其在结束艾灸治疗后1个月的效果最为明显。

伴有脊柱侧弯的先天性毛细血管扩张性大理石样皮肤

报告1例罕见的皮损持续存在且伴有脊柱侧弯的先天性毛细血管扩张性大理石样皮肤。患者女,19岁。背部树枝状青紫色毛细血管扩张伴脊柱侧弯19年。皮肤科检查:背部见网状或树枝状青紫色毛细血管扩张,伴局部坏死破溃、结痂、色素脱失及萎缩凹陷。皮损组织病理:表皮轻度萎缩,棘层色素增加,表皮突向下延伸,真皮全层胶原致密、均质化,大量毛细血管扩张,血管内皮细胞增生,管周有少量淋巴细胞浸润。诊断为先天性毛细血管扩张性大理石样皮肤(cutis marmorata telangiectatica congenita, CMTC)。

Analgesic Effects of Two Types of Spinal Manipulation in Acute Lumbar Radiculopathy Model Rats

Objective:To compare the analgesic effects of two types of spinal manipulation(SM)in acute lumbar radiculopathy(ALR)model rats induced by self-transplantation of autologous nucleus pulposus(ANP),and clarify the therapeutic mechanism.Methods:Totally 108 male Sprague-Dawley rats were randomly divided into 6 groups by a random number table(18 rats in each group),including a blank group with no interference,a sham operation group with a surgery by making a local soft tissue incision on the left side of L5-6 vertebral segment,a model group with ALR of L5 extraforaminal nerve by ANP self-transplantation without other interference,a sham manipulation(SMA)group with simulating physical rotation,as well as a mobilization(MOB)group with simulating low-velocity and variable-amplitudle rotation and a manipulation(MAN)group with simulating high-velocity and low-amplitude rotation.The interventions in SMA,MOB,and MAN groups started 1 day after modeling followed by another 5 treatments at days 3,5,8,10 and 12.Rats in the other3 groups did not receive any special intervention.Behavioral pain tests of 50%mechanical pain withdrawal threshold(50%PWT)and paw withdrawal latency(PWL)were conducted 1 day before operation followed by another 10 tests on days 1-7,10,12 and 14.Immunohistochemical expression of nitric oxide synthase(NOS)was investigated on days 5 and 12 after operation.Results:After 3 experimental SM interventions,50%PWT and PWL were higher in the MAN group than the SMA group on days 6 and 7,and higher on days 10,12 and14 postoperatively(P<0.05 or P<0.01),while the same indices were significantly higher in the MOB group than MAN group on days 1-4(P<0.05 or P<0.01).The expression of NOS was lower in the MAN and MOB groups than SMA group on day 12 postoperatively(P<0.01).Conclusions:Both manipulation and mobilization produced better results than sham interference in relieving pain by reducing neuroinflammation possibly.At the early period,compared with manipulation,mobilization presented less sensitive response to pain until later visit.SM may inhibit the overexpression of NOS,thereby alleviating severe radiculopathy.