The development of new drug is not only the main driving force for the development of pharmaceutical industry, but also plays a very important role in the social development. However, with the increasing demands, new drug development is facing great difficulties in recent years. The hypothesis of highly selective single-target is meeting the challenges because of its limitations. Network pharmacology has been one of the new strategies for new drug discovery based on single-target drug research in recent years. This paper focused on the basis of network pharmacology and its research progress, discussed its development direction and application prospects, and analyzed its limitations and problems as well. The application of network pharmacology in new drug development is discussed by comparing its guidelines with those of traditional Chinese medicine theory and Effective Components Group hypothesis of Chinese medicines.

The relationship between hyperlactatemia and metabolic acidosis, which may involve shock resuscitation,homoiostasis, and nutritional support, remains a hot topic. On one hand, increased production of lac-tate due to anaerobic glycolysis during tissue hypoperfusion can aggravate metabolic acidosis; on the other hand,the utilization of lactate at organ and cell levels may lower blood lactate level, and thus alleviate metabolic acidosis.The ultimate blood lactate level depends on the balance of these two action mechanisms.

Objective To investigate the effects of Yindan-Xinnaotong combined with aspirin on lipidemia levels and hemorrheology in patients with stroke. Methods A total of 62 patients with stroke were randomized into a treatment group (31 cases) and a control group (31 cases). The patients in the control group were treated with aspirin and those in the treatment group were treated with aspirin and Yindan-Xinnaotong capsule (4 capsules each time, 3 times/d) for 30 days. The lipidemia levels and hemorrheology were evaluated before and after the treatment. Results After the treatment, whole blood viscosity (4.15 ± 0.14 mPa?s vs. 5.25 ± 0.40 mPa?s;t=14.452, P<0.01), plasma viscosity (1.70 ± 0.30 mPa?s vs. 2.70 ± 0.25 mPa?s;t=14.258, P<0.01), fibrinogen (3.71 ± 0.51 g/L vs. 5.80 ± 0.41 g/L;t=17.783, P<0.01) and thrombosis index (0.75 ± 0.31 vs. 1.30 ± 0.21;t=8.178, P<0.01) in the treatment group were significantly lower than those in the control group. After the treatment, the serum levels of total cholesterol (3.31 ± 1.19 mmol/L vs. 5.04 ± 1.30 mmol/L;t=5.465, P<0.01), triacylglycerol (0.63 ± 0.31 mmol/L vs. 1.34 ± 0.05 mmol/L;t=12.589. P<0.01) in the treatment were significantly lower than those in the control group, the serum level of high-density lipoprotein cholesterol in the treatment group was significantly higher than that in the control group (1.83 ± 0.49 mmol/L vs. 1.28 ± 0.45 mmol/L;t=4.603, P<0.01), and there was no significant difference in the serum level of low-density lipoprotein cholesterol between the two groups (2.22 ± 0.61 mmol/L vs. 2.11 ± 0.95 mmol/L; t=0.543, P>0.05). Conclusion Yindan-Xinnaotong combined with aspirin can improve the lipidemia and hemorrheology in stroke patients.

Human rotavirus (RV) is one of the main pathogens that cause non-bacterial acute gastroenteritis diseases globally. Live attenuated vaccine is an effective method to prevent RV infection. In order to improve the safety of RV vaccines, it is a good choice to develop other forms of vaccines other than live virus vaccines to avoid attenuated vaccine strains to restore virulence through back mutation or cause environmental contamination. This article reviews the research of RV virus like particle(VLP) vaccines.

Objective: To isolate Mycobacterium tuberculosis H37Rv and H37Ra genes especially,and to construct two cDNA libraries by using suppression subtractive hybridization (SSH).Methods: We used suppression subtractive hybridization (SSH) to clone the differential genomic genes between Mycobacterium tuberculosis virulence strain H37Rv and attenuated strain H37Ra.After two times of subtractive hybridization and two times of PCR,the products of last PCR amplification were inserted into pGEM-T Easy vector and be transformed into the E.coli DH5α and screened of blue and white clones of the transformants.The subtracted cDNA library of differentially expressed genes were identified by RT-PCR.Results:High or especially expressed genes as tester had been obtained by SSH in correctitude reaction (H37Rv as tester) and reverse reaction (H37Ra as tester),the cDNA libraries of A and B of Mycobacterium tuberculosis H37Rv and H37Ra were successfully constructed.90% of the colonies were white clones,the single band of the colonies was 75% and 80%.Conchision:The cDNA libraries of Mycobacterium tuberculosis H37Rv and H37Ra were successfully constructed using SSH technique,which lay a solid foundation for screening and cloning new specific differentially expressed genes in them.

Exogenous surfactant replacement has been successfully achieved and become standard therapy in neonatal respiratory distress syndrome,but clinical trials in acute respiratory distress syndrome (ARDS) had mixed results.Early studies show that pulmonary surfactant(PS) administration in ARDS can significantly improve oxygenation and decrease mortality,but in recent years,some clinical trials haven't achieve the most substantial benefits to long-term patient outcomes.The inconsistent results of clinical trials may have related to aspects of drug composition,dosing,delivery,and timing.At this time,surfactant therapy cannot be recommended as routine therapy in pediatric ARDS.

After the basic contents of MOOC and flipped classroom were introduced, MOOC-based flipped classroom teaching model for Chinese medical literature information retrieval course was described, its design and implementation were elaborated with CBM Database as an example.

The abnormalities of retinal vessels such as retinal arteriolar narrowing,arteriovenous nicking,micro-aneurysms,retinal hemorrhages,and cotton wool spot are closely related to systemic diseases including hypertension,diabetes mellitus,cardiovascular disorders,stroke and renal diseases.The modern retinal vessels examination technology has features of quick noninvasive,quantitative standardized and intelligent analysis.Taking advantage of these to fully discover the retinal vascular abnormalities and get deeper understanding of the relationship between its' mechanism and systemic vascular diseases is not only helpful to better diagnose and treat retinal vascular diseases,but also contributes to predicting the risk and prognosis of systemic diseases.We suggest emphasizing on the study of correlation between retinal vascular abnormalities and systemic vascular diseases using modern retinal vessels examination technology.It will provide the preventive clue of diseases of circulatory system by finding out the retinopathy.Meanwhile,correctly treating systemic diseases would get a better prognosis of the retinopathy.They exist side by side and play a part together for providing a better prognosis,which would be a new direction for the doctors and scientists in the new era.

The epidermal stem cell was introduced briefly in this review.And then the spacial characteristics of diabetic wound healing were summarized.In this regards,we focus on the important role of epidermal stem cell in diabetic wound healing.At last,we outlook the research direction and clinical application of epidermal stem cell in diabetic wound.

Objective To compare the efficacy and complications of early transabdominal preperitoneal patch (TAPP) implantation and open tension-free repair in the treatment of adult inguinal hernia .Methods 84 adult patients with inguinal hernia were divided into two groups by random number table ,and 42 cases in each group .The control group was given Lichtenstein technique ,while the observation group underwent TAPP .The surgery situation, postoperative visual analogue scale (VAS) scores,postoperative morbidity and recurrence rate were compared between the two groups.Results The operative time,ambulation time,average length staying hospital and postoperative VAS scores of the observation group were (42.21 ±3.13) min,(1.13 ±0.21) d,(4.28 ±0.62) d and (2.28 ±0.22) points,which were significantly less than (65.72 ±3.62)min,(2.03 ±0.30)d,(7.87 ±0.83)d and (4.56 ±0.31) points of the control group(t=7.29,8.02,8.32,9.29,all P<0.05).The incidence rate of postoperative complica-tions and recurrence rate of the observation group were 11.90% and 2.38%,which were significantly lower than 26.19%and 16.66%of the control group(χ2 =12.52,14.39,all P<0.05).Conclusion The effect of TAPP in the treatment of adult inguinal hernia is remarkable ,and it is safe and minimally invasive ,which is easy to operate ,it has low recurrence rate ,rapid postoperative recovery and has better clinical value .