During the last decade,tissue engineering techniques,including the preparation of scaffold and cell culture,have undergone significant development and achieved encouraging results in preliminary clinical trails.However,many medical ethical conflicts still lie ahead in the tissue engineering of the bladder for clinical applications.This review focuses on the current status of tissue engineering techniques and proposes some fundamental principles to be followed in the clinical application of tissue engineering of the bladder.

Pulmonary hypoplasia (PH) may lead to severe respiratory distress immediately after birth,even neonatal death. The etiological factors, clinical, ultrasonic and pathologic characteristics of PH and the proposed methods for the prenatal diagnosis were reviewed in this article.

Objective To evaluate the prognostic value of lateral lymphadenectomy for advanced lower rectal cancer. Methods A total of 96 consecutive patients who underwent total mesorectal excision and lateral lymphadenectomy for advanced lower rectal cancer were retrospectively evaluated by using therapeutic index. A product of the frequency of lymph node metastasis and the cancer-related 5-year survival rate. Results The incidences of lymph node metastasis in mesorectal area, superior rectal artery area, inferior mesenteric artery area and lateral area was 21%,13%.10%and 15%respectively.The 5-year survival rate of patients with metastasis to the mesorectal area, superior rectal artery area, inferior mesenteric artery area and lateral area was 35%,25%,20%and 36%respectively.The therapeutic indexes for total mesorectal excision and lateral lymphadenectomy were 7.4 and 5.4,which were much higher than that of lymphadenectomy of the superior rectal artery area(3.3)and inferior mesenteric artery area(2.0).Local recurrence occurred in 19%(18 out of 96 cases)patients with advanced lower rectal cancer. Local recurrence rate of patients with positive lateral lymph node metastasis was 64%(9 of 14 cases),whereas it was 11%(9 of 82 cases)in those without lateral lymph node metastasis. The difference between these two groups was statistically significant(x2=22.308,P=0.000).Kaplan-Meier survival analysis showed significant improvements in median survival(80.9±2.1)m,95%CI:76.7～85.1 m vs(38±6.7)m,(95%CI:24.8～51.2 m)for patients with negative lateral lymph node metastasis over patients with lateral lymph node metastasis(log-rank,P=0.000). Conclusion The current results indicate that lateral pelvic lymphadenectomy could significantly reduce loeal recurrence and effectively improve the survival of patients with advanced lower rectal cancer. Except for total mesorectal excision, lateral pelvic lymphadenectomy should be followed in the surgery of pailents with advanced low rectal cancer.

Objective Mycoplasma pneumoniae is one of the main pathogens of community-acquired pneumonia in children and teenagers , which may cause mycoplasma pneumoniae pneumonia ( MPP) .Atelectasis is one of the most common manifestations of MPP.The aim of the article was to evaluate the diagnostic and therapeutic value of fiberoptic bronchoscopy ( FB) in children with MPP associated with atelectasis . Methods Retrospective analysis were made on clinical data and FB records of 99 cases of hospitalized children with MPP associated with atelectasis from August 2010 to December 2012 . Results The positive rate of MP-DNA was 92.9%(92/99) in bronchoalveolar lavage fluid (BALF), and the positive rate of MP-Ab-IgM in serum was 68.7%(68/99).All pa-tients showed obviously bronchial mucosa congestive edema during FB examination .The results are as follows:bronchial phlegm bloc-king in 31 cases (31.3%), lumen inflammatory stenosis in 22 cases (22.2%),mucosal ulcer change in 7 cases(7.1%) and mucous nodular change in 3 cases (3.0%).4 weeks after being treated with bronchoalveolar lavage (BAL), only 3 cases remained in atelec-tasis, the partial and complete re-expansion rate reaching 96.5%(82 of 85). Conclusion The positive rate of BALF MP-DNA de-tection technology for the diagnosis of MP infection is higher than that of serum MP-Ab-IgM examination .Early interventional therapy by FB can shorten the course of disease and promote the lung re-expansion in children with MPP associated with atelectasis .

In order to ensure the science and rationality of the research , ethical review has been the general principles of the international community before biomedical research . Along with the development of Chinese medicine in China , the Chinese government has paid close attention to the construction of ethical review in re-cent years . Relying on the State Clinical Research Center of Chinese Trial Program Affiliated to State Adminis-tration of Traditional Chinese Medicine of the People's Republic of China , our hospital has some experiences in the construction of ethical review platform . The academic exchanges and strengthening of personnel training can increase the ethical review level in order to provide supports and insurance for the Chinese medicine clini-cal research .

Objective To explore the adverse effects of recurrence of acute ischemic stroke at discharge.Methods Continuously including 3 440 acute ischemic stroke patients from June 1,2009 to May 31, 2012 in Department of Neurology of the People's Hospital of Xinganmeng of Inner Mongoha Autonomous Region were esearch objects.Poor outcome was defined as the occurrence of disability or death at discharge.Disability was defined as the Modified Rankin ' s Scale (MRs), when MRs was 3 or more.Binary logistic regression was used to analysis the risk factors ,calculated the odds ratios(OR) and 95％ confidence interval (95％CI).Results A total of 359 (10.44％) patients occurred poor outcomes, of whom 136 (37.88％) patients occurred the recurrence of ischemic stroke.Multiple logistic regression analysis showed that age (OR=1.24,95％CI 1.09-1.41), body temperature (OR =1.92,95 ％ CI 1.43-2.57), hypertension (OR =1.73,95 ％ CI 1.33-2.24), high blood sugar (OR=1.67,95％CI 1.26-2.20) ,glycerin trilaurate(OR=0.41,95％CI0.27-0.62) ,smoking (OR =1.37,95％CI 1.01-1.85) and recmrrence(OR=1.49,95％CI 1.15-1.95) were independent risk factors of poor outcome at discharge.The recurrence of acute ischemic stroke can increase the risk of the occurrence of poor outcome at discharge up to 49％.Conclusion Recurrence is an independent risk factor for the poor outcome of acute ischemic stroke, we should focus on secondary prevention of stroke patients at the clinical work and health education to reduce the recurrence of ischemic stroke.

Chinese materia medica(CMM) industry is one of the most national identity in China′s industries.According to the development situation in recent years,putting forward some reasonable ideas will promote better and faster development of the CMM industry.In this paper,through the literature review combined with CMM industry development status,the current structure of CMM industry was analyzed.And based on the concept of the industrial chain,the CMM industry chain structure was analyzed and described.The proposal of building a harmonious CMM industry chain was put forward clearly,which will conform to the requirements of the CMM industry development.Above all,this article has provided some constructive ideas for future development of CMM industry.

Aim To investigate the relationship between the brain targeting effect and P-glycoprotein(P-gp)expression level of Danshensu borneol ester(DBE)and the combination use of sodium Danshensu and borneol(SDSS-B).Methods The liquid chromatography mass spectrometry(LC-MS)method was applied to investigate the accumulation of Danshensu(DSS)in rat brain tissues after intravenous injection of DBE,SDSS-B and SDSS.Also their effect on regulating the expression level of P-gp in rat hippocampus was investigated using Western blot.Results The brain targeting effect of DBE,SDSS-B was qualitatively analyzed through the brain distribution of DSS,and the result was DBE(SDSS-B)>SDSS(P<0.01).Meanwhile,the brain distribution of DBE group was slightly lower than SDSS-B group at 15 min,while at 30 min DBE was higher than that of SDSS-B.DBE demonstrated a better slow release property compared to SDSS-B.Western blot analysis indicated that DBE,SDSS-B were more effective in inhibiting the expression of P-gp than SDSS in rat hippocampus(P<0.01 vs control or SDSS group),and the lowest P-gp expression was obtained with(47.58±2.28)％and(46.54±1.41)％at 45 min after administration of DBE or SDSS-B.Once the administration time was extended to 60 min,the inhibitory effect on P-gp expression of DBE was stronger than SDSS-B[(85.04±1.42)％vs(95.29±0.98)％].However,no significant inhibition of P-gp expression in rat hippocampus was found throughout the treatment of SDSS(P>0.05 at 5,15,45,60 min,vs control group).Conclusion An attenuated expression level of P-gp can be realized by DBE and SDSS-B,which is advantageous to their brain targeting.

Objective To investigate changes in tracheal bronchus (TB) under bronchoscopy and its clinical features in children.Methods The bronchoscopy datum,clinical manifestations and treatments of 46 children with TB from Department of Respiratory Medicine,Anhui Provincial Children's Hospital,were retrospectively analyzed.Results Among 46 cases,31 patients had displaced TB,13 patients had supernumerary TB,and 2 patients had trachea diverticulum.Meanwhile,in 45 cases was located at the right tracheal wall and 1 case was located at the posterior tracheal wall.Besides,20 cases were found accompanied with one type of tracheo bronchial anomalies,and the other 3 patients had 2 types of anomalies.Luminal stenosis,mucous membrane longitudinal fold and/or mucous plug were mostly revealed by bronchoscopy.Clinically,the main symptom s included recurrent or persistent cough,wheezing,refractory pneumonia,atelectasis or hyperinflation in the right upper lobe.Some cases showed no symptoms and were found accidentally by using chest CT or bronchoscope to check other diseases.Through anti-inflammatory and bronchoalveolar lavage (BAL) treatment,symptoms were improved or disappeared in 38 cases,the efficient rate was 82.6％.Conclusions TB is not unusual in pediatric patients,and mainly be found at the right wall of the trachea.Displaced TB is the most common type and frequently accompanied with the other anomalies.TB should be considered when recurrent or persistent cough,wheezing,or refractory pneumonia,atelectasis or hyperinflation in the right upper lobe occurred.Bronchoscopic technology is an important tool in the diagnosis and treatment of children with TB and may be used widely in pediatric diseases clinically.

Objective To investigate the perioperative management,coagulation factor regulation in total knee arthroplasty (TKA) for hemophilia arthritis and evaluate its short-term clinical efficacy.Methods A retrospective study was performed in hemophilia arthritis patients who had undergone TKA from March,2009 to March,2014.Patients with type A hemophilia received Lyophilized Human Factor Ⅷ,and type B hemophilia patients received Prothrombin Complex.Perioperative accurate dosage of coagulation factor was determined by preliminary test.AORI T1,T2 bone defects were filled with PMMA,and severe contained AORI T3 defects were fixed with impaction allograft and screws,and for non-contained AORI T3 bone defects,structural allografts and stem extension may be considered.Knee function was evaluated by HSS score,and imaging change was evaluated by anteroposterior and lateral radiographs of knee at latest follow-up.Results Eight patients (10 knees) were included with a mean age of 38.3±5.0 years,in which 6 were type A,and the other 2 were type B.Preoperative APTT was 63.9±4.0 s,and coagulation factor activity was 2.6％±0.9％.All the patients had flexion deformity with extension of-12.0°±5.9° and flexion of-88.0°± 11.4°.Three patients (3 knees) had valgus deformity with-3.0°±5.4°,and 2 patients (4 knees) had varus deformity with-4.5°±6.0°.All the 8 patients were followed for a mean of 14.3 months.The range of motion was improved with 0°-98.5°±6.7° at latest follow-up,and the postoperative HSS score was 88.3±4.6 compared with 42.3±10.9 preoperatively.Bone-grafting was survival,and no loosening of prosthesis or screws were detected from X-ray at latest follow-up.Conclusion The early results of TKA in Hemophilia arthritis patients are satisfactory.Preoperative preliminary test was helpful to determine the accurate dosage of coagulation factor.A stable high level of coagulation factor was vital to control bone-cement bleeding and make prosthesis stable.Tibial bone defects involving ＜ 1/3 area and ＜ 1 cm in depth could be filled with PMMA,and impaction allograft and screws could be used to fix severe contained bone defects.For segmental bone defects,except of structural allograft,stem extension was recommended to reduce stress and increase stability.