Objective To observe the effect of different doses of butorphanol and sufentanil repeatedly epidural injected on the neurobehavior function in bone cancer model rats.Methods A PE-530 catheter was inserted into the epidural space of all male Sprague-Dawley rats(not mated,weighting 150-180 g) at L1-2 level.Three days after operation,64 rats without any motor dysfunction were randomly divided into eight groups (n=8):sham operated group (group C),normal saline with bone cancer pain group (group N),butorphanol groups(group B 1,B2,B3)and sufentanil groups (group S1,S2,S3).Bone cancer pain model was constructed in group N,B and S when rats in group C were sham operated.Rats in group C and N were epidurally injected NS 30μl each,and rats in group B1,B2 and B3 were respectively epidurally injected butorphanol 25,50,100 μg (all diluted to 30 μl with NS),when rats in group S1,S2 and S3 were respectively cpidurally injected sufentanil 1,2,4 μg (all diluted to 30 μl with NS) on time per day for 10-14 days after modeling.The neurobehavior paw withdrawal threshold (MWT) of the left hind claw was recorded to observe the changes in pain behavior.The neurobehavior function of rats were recorded by BBB (BASSO,BEATTIE and BRESNAHAN) score and the inclined plane test.Results Compared with group C((67.65±9.29) g),the MWT of the model groups obviously decreased before the first time of injection (N (15.23± 2.46) g,B 1 (16.14±2.28) g,B2(15.42±3.22) g,B3(14.35±2.32) g,S1 (15.37±2.11)g,S2(15.22±2.93) g,S3(16.25± 2.36) g) (all P＜0.05)).Compared with group N((16.13±2.37) g),the MWT of group B2,B3 and S3 increased obviously after the first time of injection ((35.12±5.16) g,(35.63± 1.53) g and (34.24±5.93) g) (P＜ 0.05).At the first day of injection,there was no significant difference in the BBB scores and the inclined plane test between the model groups (P＞0.05).At 6 h after the forth injection the inclined plane test and the BBB scores of group B3 were obviously decreased compared with group N ((34.72 ± 4.56) ° and (10.64 ± 1.82) points to (43.15±4.67)° and (14.05±1.78) points (P＜0.05)).Conclusion The results provide evidence that repeatedly epidural injection of butorphanol 50 μg or 100 μg or sufentanil 4 μg can reduce the pain of the rats with bone cancer pain.But repeated epidural injection of butorphanol 100 μg can injure the neurological function.

Objective To study the relationship between a CAG repeat polymorphism of the androgen receptor (AR) gene and postmenopausal osteoporosis (PMO). Methods Genotypes for the AR polymorphisrn were determined by gene scan and DNA sequence methods in a case-control study,including 78 cases of PMO at femoral neck and 73 cases as controls, and 108 cases of PMO at lumbar spine (L2-4) and 60 cases as controls. Bone mineral density for the proximal femur and L2-4 was measured by NORLAND XR-46 dual-energy X-ray absorptiometry. The relationship between the CAG repeat polymorphism and PMO was investigated. Results Eleven different allelic variants,containing 18, 20, 21, 23, 24, 25, 26, 27, 28, 29, and 30 CAG repeats were detected, 16 genotypes were present in the subjects. There were no significant differences in the genotype and allele distributions of (CAG) n polymorphism between PMO group (SS : 25.6 %, SL : 39.7%, LL : 34.6 % ;S:45.5%,L:54.5%) and control group (SS: 23.3%,SL=45.2% ,LL:31.5%;S:45.9%,L:54.1%) at the femoral neck site (all P＞0.05). The risk of PMO at femoral neck in females with the genotypes of SL (0R:0.798,95%CI:0.335～1.797), the LL (0R:0.998,95%CI:0.425～2.341), and the combined SL and LL (OR:0.880, 95% CI: 0.419～1.852) were not significantly increased in comparison with those of females with the SS genotype (all P＞0.05). There were no significant differences in the genotype and allele distributions of (CAG)n polymorphism between PMO group(SS: 18.5%, SL: 49.1%, LL: 32.4%;S:43.1%, L: 56.9%) and control group (SS: 21.7%, SL:45.0% ,LL:33.3% ;S:44.2% ,L:55.8%) at the L2-4 site (P＞0. 05). The risk of PMO at L2-4 in females with the genotypes of SL (OR:1. 276,95%CI:0. 552～2. 950), the LL (OR:1. 137,95%CI:0.468～2.766), and the combined SL and LL (OR: 1. 217,95% CI: 0. 556 ～2. 663 ) were not significantly increased in comparison with those of females with the SS genotype (all P＞0.05). After adjustments for age, postmenopausal period, menopausal age, and body mass index, the logistic regression analyses revealed the (CAG)n polymorphism was not significantly associated with PMO at the femoral neck and L2-4 site (all P＞0.05). Conclusions The CAG repeat polymorphism in the AR gene may not be associated with PMO at the femoral neck and L2-4 site.

The total effective rate for clinical symptomstreated with oral decoction with Weiweikang(benefit-ting atrophic stomach)granules and Huoli(vitality)Bolus guided by the principle of invigorating Qi,warming the interior,activating circulation and elimi-nating blood stasis,was 91.8%,while that for thechronic atrophic gastritis with metaplasia and atypicalhyperplasia of intestinal epithelium was 87.5% and74.4% respectively.After treatment,the volume ofblood flowing was markedly increased(P