Many countries have prevented and treated iron deficiency by more and more iron nutritional fortifiers. Although technical challenges limit the amount of bioavailable iron that can be added to many foods,evidence from controlled trials has shown that iron fortification can effectively control iron deficiency. Selective plant breeding and genetic engineering are promising new approaches to improve dietary iron bioavailability.However, a major challenge is to show that they can increase iron content to nutritionally useful levels and that the additional iron is bioavailable.

Mesenchymal stem cell(MSC) is a kind of tissue stem cell having a characteristics of high self-renewal and multipotency. It is tended to be separated in vitro and play an important role in hematopoietic stem cell transplantation and transplantation of other systems. This article described mesenchymal stem cell's function and mechanism on supporting hematopoiesis, enhancing implantation,adjusting immunity and alleviating graft versus host disease (GVHD) in transplantation and also give some advices and experties about its further application.

OBJECTIVE:To establish an RP-HPLC method for determination of plasma concentration of glimepiride (GM) in Beagle dogs. METHODS: Plasma sample was separated on Agilent Eclipse XDB-C8 column with column temperature kept at 30 ℃,and the mobile phase consisted of acetonitrile-methanol-10 mmol?L-1 potassium dihydrogen phosphate (65∶40∶95,pH value adjusted to 7.2) at a flow rate of 1.0 mL?min-1. The UV detection wavelength was set at 227 nm. Plasma sample were pretreated by liquid-liquid extaction with gemfibrozil as an internal standard. Plasma concentrations of GM in 6 Beagle dogs at different time points were determined after a single sublingual dosing of 2 mg GM spray. RESULTS: The linear range of GM was 50～2 500 ng?mL-1 with a lowest detection limit of 20 ng?mL-1. The intra-day RSD and inter-day RSD were all less than 15%. The extraction recovery rate was 71.27%～103.5%,and the methodological recovery rate was 87.97%～ 98.95%. CONCLUSION: This method is simple in sample treatment and sensitive,and it is applicable for analysis of GM in biological sample.

OBJECTIVE:To facilitate healthy development of Chinese medical industry’s original equipment manufacture(OEM).METHODS:In view of the macro-and micro-environments in China,the new tendency of Chinese medical in?dustry’s OEM and its practical importance were discussed.RESULTS&CONCLUSION:The government should evolve laws and regulations to create satisfactory macro-environment;meanwhile,enterprises should strengthen inner management to find a practical way tailored to their own development.

Objective To establish an aortic transplantation model in the rat. Methods A thoracic aorta to abdominal aorta interposition transplant model in the rat was established. The male Lewis rats were used as donors and the female Brown Norway(BN) rats were used as recipients.Intercepted the thoracic aorta of lewis rats about one and a half centimeter. Transplanted it on the abdominal aorta of BN rats. The activity and weight change of BN rats were observed everyday until 1 week after transplantation. Then observed these index one time a week. The transplanted aortas were harvested at 8 weeks after transplantation. The intimal thickening were observed by pathological. The expression of CD3,CD68 and α-actin on transplanted aorta were observed by immunohistochemistry. Resuts All operations were finished within 2 hours. No recipients died during operation. All recipients could survival more than 8 weeks. The symptoms of bowing back, hair shedding and weight loss was appeared after transplantation. The weight of the rats were upturn at 4 or 5 days after transplantation. About 1 week after transplantation, all situations of the rats were recovery to the lever before transplantation. 8 weeks after transplantation the intimal thickening of the transplanted aortas were observed obviously by pathological. And the expressions of CD3, CD68 and α-actin on aortic allograft were observed. Conclusion The intimal thickening and the expressions of CD3, CD68 and α-actin on aortic allograft were typical expressions of chronic rejection. So this aortic transplantation model is feasible and reliable for studying chronic rejection.

OBJECTIVE: To lower the price of patent medicine effectively and to increase the access to medicine when public health crises occur. METHODS: Based on the real situation in China, reasons for the inapplicability of compulsory license system for medicine patents were analyzed. RESULTS & CONCLUSION: Chinese government should avoid bulwark of patent and try to explore effective ways to improve the macroscopic policy environment and encourage enterprises to boost up their own strength.

Clinically, patients with IgA nephropathy often have symptoms of sore throat or discomfort in the pharynx, which needs to be paid attention to. Traditional Chinese Medicine has certain effect in the treatment of IgA nephropathy, starting from the pharynx.There are many commonly used herbal medicines that could relieve wind, clear heat, detoxify the body and relieve sore-thoat, such as platycodon grandiflorum, dandelion, burdock and other herbs, and pecking treatment could be added to increase the curative effect.

This paper presented the thinking of security problems of the pulse pressure transducer which was widely used in TCM field. And we suggest that the selection of the pulse sensor should be flexible, the pressure should be comply with the security value of the body's tolerance range, and pulse instrument operator should pay attention to the accuracy and safety, so that the pulse instrument will be more humane, scientific and security-oriented.

Objective To investigate the effects of propofol anesthesia on cognitive function of aged rats. Methods Ninety-six male aged SD rats (16 months) were collected and given propofol anesthesia via tail vein catheter. At 7, 30, and 90 d after anesthesia, fear conditioning experiment was performed to test long-term memory of the aged rats (12 rats at each time point, total 36 rats). At 1, 2, 3, 4, and 5 d after anesthesia, spontaneous alternation in Y-maze experiment was performed to test spatial working memory of the aged rats (12 rats at each time point, total 60 rats). Results There were no statistical differences in long-term memory at 7, 30, and 90 d after anesthesia between the propofol group and control group (P>0.05). While spatial working memory of aged rats in propofol group was impaired at 1 and 2 d after anesthesia (P<0.05), working memory of aged rats in propofol group was normal at 3, 4, and 5 d after anesthesia and there were no statistical differences between the experiment and control group (P>0.05). Conclusions These results indicate that clinical dose propofol anesthesia will not induce long-term memory impairment of aged rats, although it impairs spatial working memory of aged rats within 48 h after anesthesia.

BACKGROUND:Posterior lumbar interbody fusion can thoroughly decompress the central canal, which is the common surgical technique for the central type of lumbar disc herniation with intervertebral instability at low lumbar segment. However, due to the regular traction on dural sac and nerve root in the operation, lower limb radicular pain in the early stage is inevitable. OBJECTIVE:To evaluate the effect of local use of gelatin sponge containing prednisolone acetate around the nerve roots after posterior lumbar interbody fusion on lower limb radicular pain. METHED:Sixty-three cases of lumbar disc herniation with degenerative instability were devided into treatment group (n=21) and control group (n=42) based on the type of implants. Gelatin sponge containing prednisolone acetate was implanted into patients in the treatment group after posterior lumbar interbody fusion, while pure gelatin sponge was implanted into patients in the control group. RESULTS AND CONCLUSION:Compared with the control group, radicular pain in the treatment group was significantly relieved within 1 week after surgery. The visual analog scale score and Oswestry disability index score were similar between the two groups. There were three cases of radicular pain recurrence in the control group, but no incision infection and epidural hematoma after surgery in both two groups. In conclusion, local use of gelatin sponge containing prednisolone acetate around the nerve roots can significantly relieve lower limb radicular pain in the early stage after posterior lumbar interbody fusion in lumbar disc herniation, contributing to early rehabilitation exercise and patient satisfaction outcomes.