BACKGROUND: In recent years, it has been confirmed by a variety of ways that myoblasts can differentiate into osteoblasts under the induction of recombinant human bone morphogenetic protein 2 (rhBMP-2).OBJECTIVE: To explore the mineralization reaction during the osteogenic differentiation of myoblasts under the induction of recombinant rhBMP-2 and the feasibility of osteogenic phenotype expression by in vitro induction. METHODS: Myoblasts were isolated and harvested from neonatal Wistar rats using differential velocity adherent technique and trypsinization method. After in vitro culture, purification and identification, myoblasts at passage 3 were induced by a medium containing rhBMP-2 for 21 days. Myoblasts in the control group were cultured in vitro in complete medium without rhBMP-2 for 21 days. RESULTS AND CONCLUSION: After rhBMP-2 induction, myoblast proliferation gradually slowed down. A small quantity of opaque secretory granules were found in the cytoplasm on day 8 after induction; the number of opaque secretory granules increased on day 14 after induction; and a great quantity of opaque secretory granules were found in the cytoplasm on day 21 after induction while the myoblasts without induction fused into contractile myotubes. The alkaline phosphatase activity of the induced myoblasts increased as time extended; myoblasts reacted positively in the alkaline phosphatase staining, immunochemical staining for type Ⅰ collagen and calcium node staining on day 21 after induction. These findings suggest that mineralization reaction is found in rat myoblasts by rhBMP-2 induction and myoblasts can differentiate into osteoblasts under certain inducing conditions in vitro.

Agriculture ; Female ; Humans ; Male ; Occupational Exposure ; Occupational Health ; Risk Factors

The HIV-1 capsid protein plays a crucial role in viral infectivity, assembling into a fullerene cone that encloses the viral RNA and it has gained attention as a promising therapeutic target. Research has been focused on the spatial structures of capsid proteins in recent years, and peptides and small molecules targeting capsid have been discovered. In this article, it summarizes the structure information of capsid protein, analyzes and compares the binding information of different peptides and small molecules targeting capsid. At the same time we give the perspective to the future drug discovery based on the protein-protein interaction during the maturation process.
Capsid ; chemistry ; Drug Discovery ; HIV Infections ; drug therapy ; HIV-1 ; chemistry

With the development of surgical techniques, the use of nipple-areola complex (NAC)-sparing mastectomy (NSM) has been increasing. Except for oncologic safety, the aesthetic outcome of surgery is greatly concerned by clinicians and patients. So far, there has been no consensus on the incision of NSM. This article reviewed the literature so as to provide some evidence for the selection of NSM incision.

The HIV-1 capsid protein plays a crucial role in viral infectivity, assembling into a fullerene cone that encloses the viral RNA and it has gained attention as a promising therapeutic target. Research has been focused on the spatial structures of capsid proteins in recent years, and peptides and small molecules targeting capsid have been discovered. In this article, it summarizes the structure information of capsid protein, analyzes and compares the binding information of different peptides and small molecules targeting capsid. At the same time we give the perspective to the future drug discovery based on the protein-protein interaction during the maturation process.

Objective]To study Xin'an physician Wang Xun diarrhea related theory of ideas in Cihangji, in order to more comprehensively understand diarrhea, to broaden the thinking, enhance the clinical curative effect. [Method] From the disease history, etiology and pathogenesis, syndrome differentiation and treatment,prescription drugs,and women,children with dysentery,make research on Wang's thought about diarrhea treatment. [Result] Wang's clinical diagnosis and treatment,well distinguished cold and heat; Not stick to the ancients,along seasons gas; Wang Xun created the prescription treatment of diarrhea for spring,summer,autumn,creation of winter season; on the pregnancy,postpartum woman and children with pox disease after the treatment of dysentery is summarized,with complete prescription. [Conclusion] Wang Xun Cihangji rich in content and syndrome differentiation of diarrhea, had experience,as today,treatment based on the thought of clinical diarrhea treatment still has important guiding significance.

Objective To study the nation-wide cooperation network of bio-genomics for major disease clinical samples and the development of bio-genomics database.Methods The clinical phenotypes and genomics data of disease cohort were investigated,the cooperation network of bio-genomics for major disease clinical samples and the development of bio-genomics database were analyzed,the key technologies for different tasks were studied.Results The key contents and technologies involving the development of bio-genomics database for major disease clinical samples were proposed and how to solve the following problems was pointed out,including the integration of phenotypes and new technologies in the genomics field,multi-granular and multi-modular retrieval,and computing service.Conclusion It is of great importance to establish the standards for data cooperation process and data security management,to research and develop platform for cooperation network and database,to study the service model for the integration of big data in precision medicine based on data cooperation network.

This review discusses several strategies that have been employed to enhance the regenerative effectiveness of artificial nerve guidance channels. These strategies include the use of scaffolds, the integration of contact-mediated cues within the tubular construct, and incorporation or delivery of exogenous growth factors into the conduit lumen uniformly or in a gradient form. Animal and clinical studies are reviewed to explain some of the ideas involved in developing a guidance channel of the future.

Objective To investigate the literature research focus of Chinese Pediatric Emergency Medicine.Methods The papers published in Chinese Pediatric Emergency Medicine from 2006 to 2011 and indexed by wanfang database served as the basic data sources.Four thousands and fifty-four keywords were collected from 1194 literature.Keyword frequency statistics and the co-occurrence analysis were made by using bibliographic item co-occurrence matrix builder,and cluster analysis was made using SPSS 11.5 software.Results Newborns,premature,hand,foot and mouth disease,mechanical ventilation,sepsis,congenital heart disease was the top 10 high-frequency keywords.Cluster analysis diagram showed the research focus from articles published in Chinese Pediatric Emergency Medicine for the past six years,which included:(1) hand,foot and mouth disease; (2) prognostic factors for septic shock; (3) acute lung injury and acute respiratory distress syndrome; (4) neonatal asphyxia induced hypoxic-ischemic encephalopathy; (5) the disease of premature infants ; (6) the treatment of congenital heart disease complicated with severe pneumonia and heart failure; (7) the pathogens and drug resistance analysis of pediatric intensive care unit-acquired infection; (8) sepsis.Conclusion The main study law and direction of Chinese Pediatric Emergency Medicine in the past six years are proved by keyword co-words cluster analysis.

AIM: To investigate the effect of monascus purpureus fermented rice (MR) on alcohol fatty liver model in quails. METHODS: A fatty liver model was established in quails, then the lipid levels of the models were tested in both plasma and liver, and the examination in the pathological histology of liver was conducted. RESULTS: 1.6 g?kg -1 ?d -1 of MR given orally for 20 d significantly decreased TC, TG and LDL (P