OBJECTIVE:To study the impact of amoxicillin on dysmenorrhea model mice treated with paeoniflorin.METHODS:The enrolled mice were randomized to different groups and all were given diethylstilbestrol i.g.for 12 consecutive days.From day 5 to day 12,the model control(MC)group,positive control(PC)group and 3 PA groups(different dosage of paeoniflorin plus amoxicillin)were given amoxicillin i.g.On day 12,3 P(paeoniflorin)groups and 3 PA groups were respectively given different dosage of paeoniflorin i.g.All groups were respectively given oxytocin i.p 1 hour after medication.The incubation period(TIP,seconds)between oxytocin i.p.and the first time of body twisting and the number of the body twisting(NBT)in 15 minutes of the mice were recorded.RESULTS:Compare to NC(negative control)and MC groups,the TIP was significantly prolonged and the NBT in 15min were significantly decreased in 3 P groups(P0.05).CONCLUSION:The curative effect of paeoniflorin in treating dysmenorrheal model mouse was decreased by amoxicillin suggests that the 2 drugs were unsuitable to be used concomitantly.

Objective To observe the effect of auricular-plaster therapy on non-incisional pain from post-laparoscopic surgery.Methods Sixty patients with non-incisional pains from laparoscopic surgery were divided into experimental group (n=30) and control group (n=30).The patients of control group after laparoscopic surgery were routinely given the oxygen inhalation for 6 hours and encouraged to do off-bed activity earlier.Besides the above-mentioned treatment,the patients of experimental group were additionally given auricular-plaster therapy.The patients of two groups were compared in terms of pain intensity and duration.Result The pain duration in the experimental group was significantly shorter and the pain density was significantly lower than that of the control group (bothP<0.05).Conclusion Auricular-plaster therapy can significantly reduce the duration and intensity of non-incisional pain from gynecological laparoscopy.

Objective To investigate the therapeutic effect of NSR siRNA on nerve regeneration following spinal cord hemi-transsection injury in rats. Methods Rats with T8 spinal cord hemi-trans-section were didded into 3 groups, ie, siRNA group, NS group and control group. SiRNA or NS was in-jected into lateral cerebral ventricle just after spinal cord injury. The therapeutic effect of NgR siRNA was evaluated by using BBB locomotor rating scale, retrograde horseradish peroxidase(HRP)tracing and HE staining. Results BBB locomotor rating scale showed that the recovery of the locomotor function of siRNA group seemed to be better than that of the other two groups from the 4th week, but there was no statistical difference. Retrograde HRP tracing showed a large number of positive cells in the anterior horn of spinal cord, with statistical difference compared with NS group and control group(P<0. 05). Eight weeks after spinal injury, HE staining showed disorderly distribution of the fibres in NS group and control group but serial fibres in the injury region in siRNA group. Conclusion NSR siRNA may promote the nerve regeneration following spinal cord injury.

Objective To induce experimental allergic encephalomyelitis (EAE) in female C57BL/6 mice with the extracellular domain of myelin oligedendroglia glycoprotein(MOG~(Igd)). Percentages of CD4~+ CD25~+ T cell (Tr) were tested , and also normalized expressions of Foxp3. Methods Molecular cloning technology was used to produce MOG~(Igd) fusion protein. The MOG~(Igd)-TrxA fusion protein and TrxA protein were purified by metal chelate affinity chromatography (MCAC). Mice were injected s. c. in the flank with 300 μg MOG~(Igd) in complete Frcund's adjuvant (CFA) supplemented with 4 μg/μl Mycobacterium tuberculosis. H37Rv. Mice received 0.4 ml emulsion of spinal cord homogenate of guinea pigs (GPSCH) in positive control group, and the same volume emulsiom of TrxA in negative control group, while mice served as normal control received only saline/adjuvant. Mice were monitored two times a day for continuously 30 days by double bind. Clinical scores and histopathology were evaluated. Then, mice were sacrificed. The spinal cord and brain were removed and fixed in buffered formalin. Horizontal sections taken from the central nervous system(CNS) were stained with haematoxylin and eosin (HE), and Kluver-Barrera staining. Also, immunohistochemistry was performed. Percentages of CD4~+ CD25~+ T cells were tested through flow cytometric analysis, and real-time PCR was performed to test normalized expressions of Foxp3 mRNA. Then, correlations between the two were performanced. Results Mice in both MOG group and GPSCH group shew chronic non-remitting course. The onset of disease, time when the most severe clinical symptoms happened and the clinical score between the two groups shew no significant differnces (P>0.05). However, neither in TrxA treated group nor in normal control group did animals exhibit clinical signs of EAE. Histologic sections of the brain and spinal cord taken from affected animals shew perivascular infiltration of mononuclear cells, gliosis, and multifocal demyelination. Lesions scattered throughout the CNS including brainstem, spinal cord, cerebellum, and penventricular white matter. There were significant differences between MOG group and TrxA group in the level of lesion-ceutric AQP-4 expression showing up by immunohistochemistry (P<0.05). Percentages of CD4~+ CD25~+ T cells in MOG group and GPSCH group were (4.71±1.61) % and (1.44±0.65) %, respectively, both of which were significantly lower than those in the normal control group or TrxA treated group (P<0.01). And the difference between MOG group and GPSCH group also reached statistics meaning (P<0.01). Normalized expression of Foxp3 mRNA in MOG group was 2.26± 1.97, and was not significantly higher than the 1.44±1.20 level in GPSCH group (P>0.05). However, they beth were statistically lower than that in the negative control group, namely 8.58±3.34 (P<0.01). Percentages of CD4~+ CD25~+ T cells was statistically correlated with expressions of Foxp3 mRNA (P< 0.05). Conclusion EAE induced in C57BL/6 mice with MOG~(Igd) is reproduceable. It shares the similar clinial signs and pathologic features with human multiple sclerosis(MS). Thus, we find a good way to further study the immune mechanisms of MS and also to search for the effective treatments.

Objective To compare the volume kinetics of lactated Ringer' s solution during induction of general and epidural anesthesia in elderly patients.Methods Forty ASA Ⅰ or Ⅱ patients,aged 66-86 yr,weighing 45-86 kg,undergoing elective surgery,were studied.In epidural anesthesia group (n =20),lactated Ringer' s solution was infused intravenously starting from 10 min before epidural anesthesia was performed with local anesthetics.In general anesthesia group (n =20),lactated Ringer' s solution 1000 ml was infused intravenously over 60 min starting from 20 min before induction of anesthesia.Arterial blood samples were obtained every 5 min for measurement of hemoglobin concentrations.The plasma dilution,volume increase,and volume expansion efficacy were calculated.Results The plasma dilution,volume increase and volume expansion were significantly higher at 30-60 min of lactated Ringer' s solution infusion in general anesthesia group than in epidural anesthesia group (P ＜ 0.05 or 0.01).Conclusion The volume expansion of lactated Ringer' s solution is greater in elderly patients during induction of general anesthesia than that during induction of epidural anesthesia.

Objective To explore the clinical value of ω-3 fatty acids (ω-3PUFA)immune nutrition therapy for the patients with acute ischemic stroke,and analyze its mechanism.Methods 40 patients with acute ischemic stroke were selected.They were divided into the treatment group and the control group,each group in 20 cases. The patients of the control group were given indwelling tube admitted to hospital within 24 hours,given the homogenized meal configured by nutriology department.The treatment group received ω-3PUFA enteral nutrition based on the control group.The neurologic recovery,nutritional status,lipid levels and the incidence of complications were evalua-ted.Results The total effective rate of the treatment group was 90.0%,which was higher than that of the control group (60.0%,χ2 =4.8,P <0.05).The incidence rate of complication of the treatment group was 30.0%,which was lower than the control group (65.0%,χ2 =4.91,P <0.05).The indicators such as NIHSS score,GCS score, TSF and AMC in the treatment group were better than those in the control group[(13.38 ±1.21)points vs.(10.12 ± 1.33)points;(12.9 ±2.6)points vs.(14.1 ±1.7)points;(14.06 ±7.16)mm vs.(14.8 ±4.18)mm;(26.32 ± 1.42)mm vs.(29.40 ±1.08)mm,t =3.51,6.44,3.22,5.19;all P <0.05].TG and LDL -C in the treatment group were lower than those in the control group[(1.60 ±0.71)mmol/L vs.(1.41 ±0.67)mmol/L;(3.11 ±0.60)mmol/L vs.(2.67 ±0.66)mmol/L,t =5.97,4.22;all P <0.05 ].Conclusion The clinical curative effect is better for application of ω-3PUFA on immune nutrition treatment for the patients with acute ischemic stroke.The patients'nerve function,blood lipid levels and nutritional status were significantly improved,and the complications were reduced.

Objective: Evaluation of improving the occupational protective effect of nurses in cytotoxic drugs. Methods: The occupational hazards of cytotoxic drugs in Qingdao Central hospital were taken as samples. Compare the occupational hazards of cytotoxic drugs before and after improvement. Results: From Sept.2017 to Aug.2018, the number of occupational hazards of cytotoxic drugs decreased by 90.38%; Sharp injuries, drug spillovers, distribution errors and excessive air diffusivity were decreased by 70%~100%. Conclusion Targeted occupational protection can significantly reduce the hazards of cytotoxic drugs and ensure the health of the medicinal staff.

To investigate the security of semen biologically, 15 bull semen samples were collected (of which 5 exhibited clinical signs of Foot-and-mouth disease) and identified by RT-PCR and virus isolation. The results indicated that the semen of the infected bulls were contaminated by Foot-and-mouth disease virus (FMDV), but FMDV was not detected in semen samples from those bulls not showing clinical signs of Foot-and-mouth disease (FMD). This is the first report of the presence of FMDV in bull semen due to natural infection in China. The analysis of the partial sequence of the VP1 gene showed that the virus strain isolated from semen has 97.9% identity with the virus isolated from vesicular liquid of infected bulls showing typical signs of FMD and belonged to the same gene sub-group.