Bacteriophages are viruses that infect microorganisms such as bacteria,fungi,actinomycetes and spirochetes.Because of the inherent immunogenicity,genetic plasticity,stability,safety and many other advantages,it has unique potential in vaccine research and development. At present,there are countless researches using it to construct vaccine delivery platforms,mainly including three forms,phage display vaccine,phage DNA vaccine and hybrid phage DNA vaccine,of which the phage display vaccine is the most widely studied. Phage display technology is a novel vaccine preparation technology,which is a molecular biology technology using phage as carrier,integrating foreign polypeptide or protein genes into phage genes and displaying them on the surface of phage in the form of fusion protein. This review mainly elaborated the immunological basis of phage display vaccine,the display system and its application in disease prevention,so as to provide a reference for the development and application of phage display vaccine.

Oxidative stress plays an important role in the progression of diabetes mellitus. As a potent antioxidant, alpha-lipoic acid is able to clear free radicals and alleviate oxidative damages and therefore has been widely applied in the clinical management of diabetes mellitus. This article summarizes the clinical application of alpha-lipoic acid in alleviating diabetes mellitus-related oxidative damages, protecting vascular lesions, treating diabetic polyneuropathies, and modulating insulin sensitivity.

The bilateral idiopathic aldosteronism (IHA) is the most common subtype of aldosteronism.Spironolactone is the primary preferred agent due to the pathophysiology of IHA and the long-standing clinical experience over years.If patients faced with severe side effects of spironolactone or poorly controlled blood pressure by this first-line treatment,additional treatment alternative to spironolactone,second antihypertensive,as well as adrenalectomy are suggested.In recent years,several new agents were developed to treat IHA,such as aldosterone synthase inhibitor and eplerenone.This review introduces these new kinds of medicine in the treatment of IHA.

Objective To investigate the influence of enteral nutrition (EN) via feeding pump-based continuous infusion (FPBCI) on nutrition support-associated complications in stroke patients. Methods Totally 53 patients were randomized into BPBCI group (n = 28) and control group (bolus feeding) (n = 25 ). The nutrition support-associated complications including bloating, diarrhea, hyperglycemia, and regurgitation-associated low respiratory tract infection were compared between these two groups. Results The incidences of nutrition support-associated complications were significantly lower in BPBCI group than in control group (bloating: 14.3%vs. 64.0%, P=0.0002; diarrhea: 25.0% vs. 52.0%, P=0.0429; hyperglycemia: 17.9% vs. 44.0%, P=0. 0385 ). There was no significant difference in regurgitation-associated lower respiratory tract infection between these two groups (32. 1% vs. 40.0% , P = 0. 5516). Conclusion Compared with conventional bolus feeding,BPBCI may greatly decrease tube-feeding related complications.

Perioperative nutrition support may be required when the synthesis and utilization of nutrients become disordered due to gastrointestinal abnormalities and trauma anesthesia. Proper nutrition support can reduce or prevent malnutrition, and thus facilitate the recovery and lower complications and case-fatality rate.

Objective To establish a HPLC method for the determination of allantoin in Rhizoma Dioscoreae from different producing areas. Methods The RP- phase HPLC is applied. Separation and determination of allantoin was achieved by using an Allttima ODS C18 column(250 mm? 4.6 mm, 5? m) and a mobile phase of methanol- water (1 ∶ 39, V/V). The flow- rate was 0.8 mL/min, temperature at 30 ℃ and detection wavelength at 224 nm. Results A good linearity of allantoin was in the range of 0.24 ? g～ 2.40 ? g, r=0.9992; the average recovery rate was 103.1 % , RSD =2.0 % (n=6). Conclusion Rhizoma Dioscoreae from Henan Province is of the best quality and Rhizoma Dioscoreae from other provinces are only qualified for food. 

The intestine microbiota and the host interacts with each other.Resently,the association and causality between gut microbiota and cardiovascular diseases have been well studied.Some underlying mechanisms,especially metabolic pathways are known, including the role of trimethylamine N-oxide in the pathogenesis of atherosclerotic heart disease and heart failure and that of short chain fatty acids and their receptors in blood pressure regulation.

Objective To compare the antiviral efficacy and economics between lamivudine and entecavir in patients with low preoperative HBV replication after liver transplantation. Methods Liver transplantation patients from 2006 July to 2013 July were selected for being studied prospectively. Statistically evaluated between entecavir and lamivudine efficacy by the analysis of postoperative follow-up of seroconversion and HBV reinfection. Results The cumulative overcast rate of entecavir group was 98.04% one month after transplatation. And 3 of 51 cases were reinfected with average turn time of 9.73 days. Meanwhile , the cumulative overcast rate of Lamivudine group was 100% and 3 of 26 cases were reinfected with average turn time of 5.11 days. There are no statistical differences between the two groups accumulation rate , reinfection rates , as well as cumulative infection rates. Conclusion In the cases of low hepatitis B virus replication before liver transplantation, Entecavir and Lamivudine have the similar effect of preventing HBV reinfection after operation. Compared with the cost of Entecavir group, Lamivudine is more economy.

The morphologc observation of immunoreactive structures and the quantitative analysis of VIP, SP, L-ENK and SOM in the small intestine of the control and the irradiated rats were studied by using the methods of immunocytochemistry (ICC) and radioimmunoassay (RIA). Meanwhile, histopathologic study was carried out by light and electron microscope (LM, EM). The results and findings are as follows.. (1) Viewed on LM, no obvious change of the enteric ganglia was found in the small intestine of the irradiated rats; while under EM, the axons and synaptic vesicles showing swelling and vacuolar degeneration was observed. These stuctures have close relation to the transport and release of the neurotransmitter. (2) The normal morphology and the distribution of the immunoreactive nerves and endocrine cells of VIP, SP, L-ENK and SOM were revealed in the intestine of rats by ICC method. Four kinds of immunoreactive peptidergic nerves were confirmed as an important part of the enteric nervous system. No obvious change was found on the structure of the peptidergrc nerves after 2000 rad r-irradiation. The radiosensitivity of the peptide-containing endocrine cells was similar to that of the intestinal epithelium. (3) We first confirmed with RIA that the level of the 4 regulatory peptides remarkably changed in the small intestine of the irradiated rats. Combining the physiologic founctions and the trends of the 4 regulatory peptides, as well as the pathologic characteristics and process after r-irradiation, it is proposed that the 4 kinds of peptide may be involved in the pathologic process of the mucosa damage and the disturbance of intestinal motility etc. in the intestinal radiation sickness of rats.