Vaccination is the primary strategy for the prevention and control of pandemic influenza. Because influenza virus is highly variable across strains, universal influenza vaccines need to be developed to address this problem. This review describes the research progress in conserved epitopes of influenza virus, the advances in the research and development of universal influenza vaccines based on the relatively conserved sequences of NP, M2e, HA2, and headless HA, the mechanisms of cross-protection, and the methods to improve cross-protection.
Animals ; Cross Reactions ; Humans ; Orthomyxoviridae ; immunology ; Species Specificity ; Viral Proteins ; immunology ; Viral Vaccines ; genetics ; immunology

The data mining technique is adopted to analyze characteristics and rules of acupoint and meridian selection of acupuncture-moxibustion for treatment of vertigo at different time periods in the ancient. The data is collected from literature regarding acupuncture-moxibustion from the pre-Qin period to the end of Qing Dynasty, so as to establish a clinical literature database of ancient acupuncture-moxibustion for treatment of vertigo. Data mining method is applied to analyze the commonly used meridians, acupoints and special acupoints in different dynasties, also possible rules are explored. Totally 82 pieces of prescription of acupuncture-moxibustion for treatment of vertigo are included. In the history the leading selection of acupoitns are Fengchi (GB 20), Hegu (LI 4), Shangxing (GV 23) and Jiexi (ST 41) while that of meridians are mainly three yang meridians of foot and the Governor Vessel, especially the acupoints on the Bladder Meridian of foot yangming had the highest utilization rate, accounting for 23.04%. The acupoint selection is characterized by special acupoint, accounting for 80.6%, among which the crossing points are the most common choice. Distal-proximal acupoints combination is the most frequent method. The results indicate that the ancient acupuncture-moxibustion for treatment of vertigo focused on acupoints in the yang meridians, and the specific acupoints play an essential role in prescription; also the principle of syndrome differentiation and selecting acupoints along the meridians could be seen.
Acupuncture Points ; Acupuncture Therapy ; history ; Data Mining ; History, 18th Century ; History, 19th Century ; History, 20th Century ; Humans ; Medicine in Literature ; Moxibustion ; history ; Vertigo ; history ; therapy

OBJECTIVE To analyze risk factors in order to provide scientific gist in diagnosis and treatment of central venous catheter related sepsis(CRS) in patients with total parenteral nutrition(TPN). METHODS To make comparison of the 57 cases of CRS with 423 cases of non-CRS during 1998-2002.First,monovariable chi-square test and then non-condition Logistic regression analysis of the markedly different factors in SPSS10.0 were conducted. RESULTS The major risk factors might be infectious disease,duration of central venous catheter in,location of catheter, type of catheter and material of catheter,and serum protein

Adolescent ; Adult ; Ear, Middle ; diagnostic imaging ; Female ; Humans ; Imaging, Three-Dimensional ; Male ; Mastoid ; diagnostic imaging ; Middle Aged ; Tomography, X-Ray Computed ; Young Adult

Under the internal control perspective,it summarized the cases of daily bill management in the target hospital,found that the management method of the current hospital bill,bill time and the time of entering account book were inconsistent.Meanwhile bill management was not covered by the hospital information unifrom management.Through enhancing internal control and reconstructing hospital bill management system,it showed the effective fusion of financial dealing and bill management,optimized the process and method of hospital bill management.

Objective To explore the characteristics of human plague using a sero-epidemiologic method in the source of the three rivers area in Qinghai for possible plague control strategies. Methods Investigate human plague sero-epidemiologically in the source of 4 counties in the three rivers area in Qinghai. The human serum would be tested to confirm the sew-positive rate for plague F1 antibody using indirect hemagglutination assay(IHA). Results A total of 2508 local participants were tested in 4 counties, the overall plague sero-positive rate was 2.31%(58/2508). This represents a statistically significant difference with 4 counties(X2=19.30,P<0.01). The sew-positive rate for males and females were 2.54% (32/1261) and 2.09% (26/1247), respectively. There were no statistically significant differences between males and females(X2= 0.65,P 0.05). The sero-positive rate in herdsman, cadre, Tibetan, Hart nationalities were 3.54% (44/1243), 6.47% (11 / 170), 2.40% (56/2335) and 1.47% (2/136), respectively. The sero- positive rate increased with age. The highest titre for human plague serum antibody was 1 : 640. Conclusion There were occult infections of plague in the population on source of three rivers area in Qinghai. Sero-epidemiologic data revealed that the human plague sero-positive rate was closely correlated with the local animal plague.

OBJECTIVETo summarize the experiences and advantages of laparoendoscopic single-site (LESS) surgery for neonatal intestinal atresia and stenosis.

METHODSTwenty patients of neonatal intestinal atresia and stenosis were treated with LESS procedure in Huai'an Women and Children's Hospital of Jiangsu Province between October 2010 and April 2012. The clinical data were retrospectively analyzed.

RESULTSAmong these patients, 13 were male, 7 were female. Age at admission ranged from 10 min to 1 d. Four cases were premature, and 3 were born with low birth weight (<2500 g). One was diagnosed with duodenal atresia, 1 with duodenal stenosis, 9 with jejunal atresia, 2 with jejunal stenosis, and 7 with ileal atresia. Laparoscopic exploration was performed in all the cases by transumbilical procedure, the proximal and distal ends were exteriorized from the umbilical port site for anastomosis. Twenty neonates with intestinal atresia and stenosis were performed using this new minimally invasive approach, with no cases converted to open operation or standard laparoscopy. The operative time was 35-60 (mean, 40) min. The intraoperative bleeding was 3-5 ml. Two cases were given up treatment by their parents on the second postoperative day. For the other 18 patients, oral intake started on postoperative day 5-10 (mean, 7), and discharged from hospital on the postoperative day 10-20 (mean, 13). The follow up ranged from 1 to 11 months, during which 1 case died, 3 cases were managed with conservative treatment for diarrhea or malnutrition. The other 14 cases grew up healthily.

CONCLUSIONThe technique of LESS in the treatment of neonatal atresia and stenosis is simple and the outcomes are satisfactory.

Constriction, Pathologic ; surgery ; Female ; Humans ; Infant, Newborn ; Intestinal Atresia ; surgery ; Laparoscopy ; methods ; Male ; Retrospective Studies

OBJECTIVETo review the efficacy of total anomalous pulmonary venous connection (TAPVC) repair and to conclude the factors impacting the peri-operative death rate.

METHODSThe clinical data of 145 infants under 1 year old who underwent the TAPVC repair from January 2001 to July 2008 was analyzed. There were 94 male and 51 female patients. The mean age when the repair was performed was (7 ± 3) months, and the average weight was (6.3 ± 1.6) kg. As to the pulmonary connection type, 77 patients were supracardiac (53.1%), 47 patients were cardiac (32.4%), 9 patients were intracardiac (6.2%), and the remaining 12 patients were mixed (8.3%). Pre-surgery echocardiography showed that 21 patients had pulmonary venous obstruction (12 patients were supracardiac type, 3 patients were cardiac type, 3 patients were intracardiac type, and 3 patients were mixed type).

RESULTSAll patients underwent two-ventricle anatomy correction (the cases of complex malformations had been excluded). Peri-operative mortality was 11.7% (17/145). Because of the significant improvement in the surgical techniques, anesthesiology, cardiopulmonary bypass and the management of ICU in January 2006, the population was divided into two groups: A (before January 2006) and B (after January 2006). Peri-operative mortality decreased from 19.0% in group A to 6.2% in group B(P = 0.020). After analysis, it was determined that the factors impacting mortality were which group the patient belongs to, whether he/she had preoperative pulmonary vein obstruction and how big the atril septel connection was. The operative technique to keep the anastomotic aperture adequate and prophylaxis pulmonary hypertensive episodes contributed to the improvement on the mortality rate. There had been no case of repeating the surgery because of pulmonary venous obstruction during peri-operative care period.

CONCLUSIONSImprovements of the surgical technique as well as the treatment in preoperative and postoperative have led to the reduction of the mortality. Preoperative pulmonary vein obstruction is still an important factor that contributes to early mortality.

Female ; Humans ; Infant ; Male ; Pulmonary Veins ; abnormalities ; surgery ; Retrospective Studies ; Treatment Outcome ; Vascular Diseases ; congenital ; surgery

With the development of stem cells and regenerative medicine (treatment of various diseases using stem cells) research, the induction of differentiation of human stem cell technology has also made significant progress. The development of chemical biology offers a variety of small biological molecules for stem cell biology. This review focuses on how small molecule compounds (natural and synthetic) induce differentiation of stem cells.
Animals ; Cell Differentiation ; drug effects ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Embryonic Stem Cells ; cytology ; High-Throughput Screening Assays ; methods ; Humans ; Plants, Medicinal ; chemistry ; Regenerative Medicine ; trends ; Signal Transduction ; Small Molecule Libraries ; chemistry ; pharmacology ; Stem Cells ; cytology ; Wnt Proteins ; metabolism

Objective:To sieve molecular biomarkers associated with heart failure derived from arrhythmogenic right ventricular cardiomyopathy (ARVC).Methods:The comparative gene microarray analysis using individual left ventricular myocardial samples from 5 patients with heart failure resulting from ARVC undergoing transplantation and 5 matched samples from normal adult heart were performed.The accuracy rate of the differentially expressed genes obtained by gene microarray was further verified by quantitative real time RT-PCR.Results:83 genes (from a total of 35000) that were differentially expressed in diseased hearts versus normal hearts were identified.Among them thirty-seven genes were up-regulated and forty-eight genes were down-regulated in ARVC hearts compared with the normal hearts.Changes of gene expressions were most prominently observed in those belonging to the "metabolism" category.Eighty percent of the selected 30 differentially expressed genes from microarray analysis were confirmed by quantitative real time RT-PCR.The highly expressed level of atrial natriuratic peptide (ANP) in ARVC hearts that was confirmed by quantitative real time RT-PCR and immunohistochemistry was reported.Conclusion:For the first time to our knowledge,the altered expressed genes in ARVC hearts compared with the matched normal hearts were identified.The results are the base to further study the molecular mechanism and identify diseased-specific molecular biomarkers in heart failure derived from ARVC.