BACKGROUND: A silk fibroin/chitosan scaffold has good biocompatibility, osteoinductivity and degradability.OBJECTIVE: To review the structure, performance and application of the silk fibroin/chitosan scaffold in bone,cartilage and soft tissue engineering regeneration.METHODS: PubMed, Wanfang, and CNKI databases were retrieved by computer for articles related to the structure, performance and application of the silk fibroin/chitosan scaffold in orthopedics published from 1998 to 2016. The keywords were chitosan, silk protein, bone tissue engineering in English and Chinese, respectively.RESULTS AND CONCLUSION: The silk fibroin/chitosan scaffold is characterized by good biocompatibility, bone inductivity and biodegradability that make cells grow well on the scaffold. The silk fibroin/chitosan scaffold has been widely used in bone tissue engineering, and has a prominent performance in bone defect repair and cartilage injury treatment. Meanwhile, the silk fibroin/chitosan scaffold exerts a crucial role in wound healing as well as in the treatment of spinal nerve injury and other soft tissue injuries. However, the silk fibroin/chitosan scaffold currently is less reported in the clinical use due to various reasons, and it will be the main research direction of future efforts. As is known to us, silk protein can be used to prepare the cruciate ligament and construct tissue-engineered nuclei; therefore, the silk fibroin/chitosan scaffold can be developed in the treatment of tendon ligament injury and intervertebral disc tissue engineering.

AIM: To investigate the ethanolic and aqueous extracts from Sancao prescription (Spica prunellae, Oldenlandia diffuse (willd) Roxb, Herba agrimoniae) on the proliferation of human lung adenocarcinoma cell line (A549). METHODS: 95% ,60% and 30% ethanolic extract and aqueous extract were prepared from Sancao pre-scription. The MTT assay was used to determine the inhibitory action against the proliferation of A549. RESULTS: IC_(50) of 60% ethanolic extract over A549 was one of the lowest in extracts. Combination of 60% and 90% ethanolic extract showed the synergistic antitumour activity. CONCLUSION: Ethanolic extract of Sancao prescription has and effect on human hung adenocarcinoma(A549).

This paper was aimed to study the genetic diversity and genetic relationship of germplasm resource of Lonicerae Japonicae Flos in order to provide references for its breeding. A total of 36 samples from 18 farm varieties and wild species, as well as related species of Lonicera japonica Thunb. from the main production areas were studied by ISSR-PCR markers. The Jaccard coefficient was worked out by NTSYS-pc software. And a cluster dendrogram of different samples was established based on unweighted pair-group method with arithmetic mean (UPGMA). The re-sults showed that 12 ISSR primers generated 129 loci of which 114 loci were polymorphic. The average percentage of polymorphic bands (PPB) is 88.37%. In the cluster dendrogram, different samples of Lonicera japonica are in the same group, which showed that it is a natural species; the wild sample is separated from the cultivated samples; the traditional type-Maohua is relative stable, but the type of Jizhuahua includes complicated varieties, and it has obvi-ous genetic variation; the new variety Jiufeng 1 has already distinct into one stable type. It was concluded that the ISSR method was suitable for germplasm identification, genetic diversity analysis of Lonicerae Japonicae Flos, thus providing a theoretical foundation for its cultivation and breeding.

In this article, HPLC fingerprint analysis method for total flavonoids from pollen of Brassica campestris L.was established., The HPLC fingerprint was performed on Waters C18 column (250 mm × 4.6 mm, 5 μm), eluted gradiently with the mixture of acetonitrile and 0.4% phosphoric acid aqueous solution at a flow rate of 0.8 mL·min-1. The column temperature was 40℃. The detection wavelength was 320 nm. The HPLC standard fingerprint of total flavonoids from pollen of Brassica campestrisL. was established, and 16 common peaks were calibrated. The method was simple, stable, and reproducible. It could be applied for quality control of total flavonoids from pollen of Brassica campestris L.

This study was aimed to develop an HPLC method for the determination of hesperidin,magnolol,honoki-oland liquiritin in Soft Capsule Jia-Wei Huo-Xiang Zheng-Qi (JWHXZQ). AKromasil C18 column (250 mmí4.6 mm, 5 μm) was used with water-methanol as mobile phasegradient elution. The flow rate was 1.0 mL·min-1, and the de-tecting wavelength was at 287 nm. The results showed that the linearity ranges ofhesperidin,magnolol,honokioland liquiritinwere 4.47-178.70 μg·mL-1, 3.42-136.96 μg·mL-1, 3.49-139.48 μg·mL-1, 3.92-157.20 μg·mL-1, respec-tively (r>0.999). The average recoveries of them were 99.48%, 99.05%, 99.57% and 99.79%, respectively. It was concluded that the method was accurate, sensitive and specific for quality control of Soft Capsule JWHXZQ.

This study was aimed to screen main active site to reduce blood lipid from Xin-Mai (XM) capsule and establish HPLC fingerprint of the site, in order to study the correlativity between active site and relevant fractions of its herbs. Solvent extraction was used to separate XM capsule into different polar fractions. Intraperitoneal injection of 75% egg-yolk emulsion was used to establish mice hyperlipidemia models. And the active site was screened. Chromatographic fingerprints of the site and relevant fractions of its herbs were configured by HPLC analysis. The
retention time of peaks was utilized as index to evaluate the correlativity. The results showed that lipid-lowering effect of ethyl acetate extract and garlic essential oil was significant (P<0.01). Fingerprint of the active site in XM capsule was established with 28 fingerprint peaks and the assignment results of 27 peaks were indicated. It was concluded that the active sites to reduce blood lipid of XM capsule were ethyl acetate extract and garlic essential oil. The established fingerprint method can effectively determine the correlativity between the active site and its relevant fractions, which contributed to pharmacodynamic material foundation and quality standard.

This study was aimed to establish a method for simultaneous determination of seven anions and organic acids in Huo-Xue Tong-Luo (HXTL) injection by HPCE. With tartaric acid as the internal standard, separation was performed on an uncoated fused silica capillary (50 μm × 64. 5 cm, 56 cm of effective length). The 14 mmol·L-1 potassium acid phthalate and 0.1 mmol·L-1 hexadecyl trimethyl ammonium chloride were selected for the running buffer solution (pH 5.6). The separation voltage was -16 kV. The detection wavelength was set at 210 nm. The column temperature was maintained at 25 ℃ . The sample was injected at 50 mbar×4 s. The results showed that
calibration curves of chloride ion, sulfuric acid root ion, formate ions, malic acid, succinic acid, iodate ion and acetic acid ions showed good linear relationship 41.4-248.2 μg·mL-1 (r = 0.999 3), 12.5-74.8 μg·mL-1 (r = 0.999 8), 18.2-109.1 μg·mL-1 (r = 0.999 8), 20.3-121.6 μg·mL-1 (r = 0.999 5), 17.2-103.1 μg·mL-1 (r=0.999 1), 17.6-105.6μg·mL-1 (r=0.999 6), 51.6-309.6μg·mL-1 (r=0.999 7), respectively. The average recoveries were 102.6%, 97.3%, 102.2%, 99.0%, 99.2%, 97.8%, and 103.4%, respectively. The RSD were 1.7%, 2.0%, 1.6%, 2.6%, 2.1%, 2.9%, and 1.0%, respectively (n = 6). It was concluded that the method was accurate and reproducible. It was suitable for the determination of anions and organic acids in HXTL injection.

This study was aimed to develop the method for determination of mannitol and meglumine in diterpene lactones of Ginkgo Injection. The HPLC-ELSD was used to determine mannitol and meglumine in diterpene lactones of Ginkgo Injection. The analysis was carried out on Waters XBridge Amide (4.6 mm í 150 mm, 3.5 μm) column. The mobile phase was the mixture of acetonitrile, and 50 mmol·mL-1 ammonium acetate with a linear gradient elu-tion at a flow rate of 1.0 mL·min-1. The column temperature wad maintained at 30℃. The operating conditions of the ELSD were a nebulizer nitrogen with the flow rate of 2.0 L·min-1 and an evaporator tube at the temperature of 90℃. The results showed that mannitol had a good linear relationship in a range of 1.9665 μg - 19.665 μg. The average recovery rate was 100.57% (RSD = 0.92%, n = 9). The meglumine showed a good linear relationship in a range of 0.4838 μg - 4.638 μg. The average recovery rate was 100.67% (RSD = 0.72%, n = 9). It was concluded that this method was simple and accurate with good reproducibility. It met with the requirement of the determination of the contents of mannitol and meglumine in diterpene lactones of Ginkgo Injection.

Objective To study the causes for dysphoria and discuss the medication methods of controlling the dysphoria in craniocerebral injury patients. Methods First, craniocerebral injury patients were grouped to analyze the causes for their dyshoria. Then, the patients were injected with Tramadol (1 mg/kg), Droperidol (0.05 mg/kg) and Midazolam (0.1 mg/kg). Successively, analgestic pump containing combined Tramadol that included Tramadol (15 mg/kg), Droperidol (0.15 mg/kg), Midazolam (0.4 mg/kg) and 100 ml 10 g/L Procaine was used for 50 hours, (1.5-2.5) ml/h, continuously. The medication time ranged from 40 hours to 160 hours. Results Of 71 patients with dysphoria, 43 patients with grades Ⅰ and Ⅱ dysphoria were under complete control, 19 with grade Ⅲ dysphoria (eight were injected with more load) under basic control, one with grade Ⅳ dysphoria under control and eight degraded to grade Ⅱ dysphoria but needed additional load. Of all, 63 patients were successfully controlled (89%) and eight (11%) got better, with effectiveness rate of 100%. Blood pressure, heart rate and breath remained clam, which was good for oxygen transferring to brain and reducing of encephalic pressure. Conclusions The causes for dysphoria in craniocerebral injury patients include stimulation of pain and acute psychopathic impediment. Continuous injection of Tramadol via analgesic pump is an ideal medication methhod for analgesia and sedation, for it can not only hold blood and medicament in invariableness, but also make the patients quiet, without bad reaction or affecting process of regaining consciousness.

Aim To investigate the protective effects of YXETNZ injection on SH-SY5 Y cells damaged by oxygen-glucose deprivation ( OGD ) , and explore its functional mechanisms. Methods After 4 h of OGD, the cells were treated with 25 mg·L-1 drugs for 1 h. Subsequently, cell viabilities were measured by cell counting kit-8 ( CCK-8 kit ) and cell apoptosis was measured by caspase-3/7 assay kit according to manu-facturer’ s instructions. Furthermore, cell death was also detected by ELISA. The levels of phospho-Akt, phospho-PKA,phospho-Bad were evaluated by western blot. Results Oxygen-glucose deprivation significant-ly decreased the cell viabilities of SH-SY5Y cells, while YXETNZ injection significantly increased cell vi-abilities, phospho-Akt, phospho-PKA and phospho-Bad. Furthermore, YXETNZ injection also reduced the activities of caspase-3/7 and cytoplasmic histone-asso-ciated-DNA-fragments contents. Conclusion Our re-searches demonstrat that YXETNZ injection shows good neuroprotective effects on SH-SY5 Y cells after oxygen-glucose deprivation. The underlying mechanisms may be associated with activation of PI3 K/Akt/Bad/caspase-3/7 , cAMP/PKA/Bad/caspase-3/7 signaling pathway.