Objective To investigate the plantar pressure distribution of the injuried limbs and the healthy side after the operation for Pilon fracture. Methods 31 patients with Pilon fractures were tested with Footscan USB2 system, including the maximum force and impulse of 10 zones of the feet 1 year after surgery. Results Compared with the contralateral feet, the maximum force reduced under the the first metatarsal bone, medial heel, and lateral heel (P<0.05), and it increased under the fourth, and fifth metatarsal bone (P<0.05) of the injured feet. The impulse reduced under the the first metatarsal bone, medial heel, and lateral heel (P<0.05), and increased under the fifth metatarsal bone and midfoot (P<0.05). Conclusion The load decreased on the heel and medial forefoot, and increased on the lateral forefoot of the injured limbs after Pilon fracture, while the lateral forefoot and midfoot tend to be injured.

OBJECTIVETo investigate clinical outcomes of tendon allograft reconstruction with arthroscopy minimally invasive technique at stage I for the treatment of knee dislocation with multiple ligaments injury.

METHODSForty-eight patients with knee dislocation were reconstructed anterior and posterior ligament under arthroscopy at stage I from January 2008 to January 2012, and repaired ligaments injury of knee joint by minimally invasive technique. There were 38 males and 10 females aged from 20 to 59 years old with an average of 35.6 years old; 22 cases on the left side and 26 cases on the right side; the time from injury to operation ranged from 2 d to 2 weeks. Two cases combined with anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), medial collateral ligament (MCL) and posterolateral complex injuries, 36 cases combined with ACL, PCL, and MCL injuries, 10 cases combined with ACL, PCL and PLC injuries; 4 cases combined with peroneal nerve injury. Lysholm scoring were used to compared the cases before operation and final following-up to evaluate knee function.

RESULTSAll patients were followed up from 12 to 30 months with an average of (18.2 ± 6.3) months. Activity and stability of joint were obviously improved. Lysholm score were improved from 40.3 ± 4.1 before operation to 87.0 ± 6.4 at final following-up.

CONCLUSIONReconstruction with arthroscopy minimally invasive technique at stage I for the treatment of knee dislocation with multiple ligaments injury could recover stability of joint better,reserve joint function. Preoperative training and postoperative individualized rehabilitation treatment is the key point of recover knee joint function.

Adult ; Anterior Cruciate Ligament Injuries ; Arthroscopy ; Female ; Humans ; Knee Dislocation ; rehabilitation ; surgery ; Male ; Middle Aged ; Multiple Trauma ; surgery ; Posterior Cruciate Ligament ; injuries ; Reconstructive Surgical Procedures ; methods

Objective　To study the effect of transfecting anti-sense expression vector of the first subtype of the monocarboxylate transporter (MCT1) gene into human lung adenocarcinoma cells on intracellular pH (pHi) regulation, lactate transportation and cell growth. Methods　MCT1 antisense gene recombinant vector pLXSN-MCT1 was introduced into human lung cancer cells A549 with electroporation. The cell colonies resistant to G418 were selected. Positive clones were examined by PCR to confirm the integration of genomic A549 DNA and antisene MCT1 gene. The changes of pHi and lactate transportation were detected with spectrophotometry. Cell growth was studied with cell growth curve. Results　pHi and lactate transport were remarkably decreased in the transfected cells, and the cell growth was inhibited compared with the cells without transfection（P<0.001）. Conclusion　MCT1 gene may play an important role in pHi regulation, lactate transport and cell growth in lung tumor cells.

OBJECTIVETo explore the relationship between Chlamydia pneumonia (CP) infection and hypertension as well as the interaction of traditional risk factors and CP infections on hypertension in Chinese Mongolian population.

METHODS1430 inhabitants living in Tongliao city, Inner Mongolia were selected as research subjects, including 488 hypertensives and 942 normotensives. Enzyme-linked immunoassay technique was used to test CP IgG antibody in the blood serum and SPSS 13.0 Microsoft was used to analyze the data.

RESULTSThe prevalence rates of hypertension were significantly different between CP IgG positive and negative groups, However, the trend was attenuated after adjusting age, sex, drinking, smoking, body mass index (BMI) and dyslipidemia. The CP infection rate was significant different in diastolic blood pressure groups, which was significantly higher in 80-84 mm Hg than that in the lowest DBP group. The interaction of chronic CP infection and other traditional risk factors were associated with hypertension in Chinese Mongolian ethnic groups. The ranking with significant sequence from high to low were BMI, dyslipidemia, alcohol intake, sex and age.

CONCLUSIONCP infection was not related to hypertension in Chinese Mongolian ethnic groups but the interaction with other traditional risk factors would increase the risk of developing hypertension.

China ; epidemiology ; Chlamydophila Infections ; epidemiology ; ethnology ; Chlamydophila pneumoniae ; Enzyme-Linked Immunosorbent Assay ; Female ; Humans ; Hypertension ; epidemiology ; ethnology ; Immunoglobulin G ; analysis ; Male ; Mongolia ; ethnology ; Seroepidemiologic Studies

Adolescent ; Adult ; Age Factors ; Aged ; Body Mass Index ; China ; epidemiology ; Fatty Liver ; diagnostic imaging ; epidemiology ; etiology ; Female ; Humans ; Male ; Mass Screening ; Middle Aged ; Prevalence ; Sex Factors ; Ultrasonography

Objective To investigate the effect of patient controlled subcutaneous analgesia (PCSA) of Sufentamil and Parecoxib sodium on the postoperative delirium in patients after the spinal surgery. Methods 240 patients with ASA Ⅱ- Ⅲ age 18-64 yrs after the spinal surgery were divided into two groups: group NO-PCSA (analgesic management: patients were accepted pethidine 25-50 mg intramuscular injection n = 120 );group PCSA (analgesic management: patient controlled subcutaneous analgesia was started since skin suture with the following composition:Sufentanil 0.9 ug/(kg.d)+Parecoxib sodium 120 mg+Tropisetron 10 mg+normal saline 150 mL. The PCSA setting was as follows:background infusion at 2 mL/h, a bolus dose of 0.5 mL, lockout interval 15 min. If the VAS was greater than 5, patient was accepted pethidine 25-50 mg intramuscular injection n=120) . The effect of analgesia was assessed by visual analogue scale (VAS) . The delirium was assessed by the confusion assessment, VAS and delirium were recorded with in 2, 24, 48, 72 hours postoperatively. Results During the analgesia period, the VAS and the incidence of postoperative delirium were significantly lower in group PCSA than those in group NO-PCSA ( <0.05) . Conclusion PCSA of Sufentamil and Parecoxib sodium have a good postoperative analgesic effect in patients after the spinal surgery. It is an effective measure and the incidence of postoperative delirium can be decreased by reliefing postoperative pain.

OBJECTIVETo explore the characteristics of the whole genome of the influenza H1N1 virus of the mild and severe cases in Beijing.

METHODSA total of 21 samples of throat swabs were collected from surveillance-designated hospitals between June and December in 2009, including 10 severe cases (4 death cases) and 11 mild cases. RNA of the virus were extracted,and the amplified primers of the whole genome were designed.Reverse transcription and PCR were performed to the RNA and then the PCR product was sequenced by software to analyze the evolution of the viral genes and the variation of the amino acids.

RESULTSCompared with the reference vaccine strain A/California/07/2009 (H1N1), the genetic nucleotide homology in the eight segments of the pandemic H1N1 virus in Beijing in 2009 was higher than 99%, without significant variation. Among them,the genetic distance of hemagglutinin (HA), neuraminidase (NA) and nucleoprotein (NP) was comparatively far, separately 0.0050, 0.0040 and 0.0040.The gene of HA, P83S, the gene of NA, N248D, the gene of polymerase (PA), P224S and the gene of NP, V100I and L122Q were found to mutate in all the samples. Genes of HA, NA, NP, PA, PB 2 and nonstructural protein (NS1) in severe cases showed obviously clustered evolution. The mutation of gene S128P and S203T of HA, gene R269R and D547E of PA, gene T588I of PB 2 and gene I123V of NS mainly happened in severe cases, separately counting 6, 9, 6, 7, 9 and 6 cases. The relevance between the mutation happened in S203T of HA, R269K and D547E of PA and the severeness of the cases showed statistical significance (P < 0.05). The mutations of HA gene were mainly on the Ca and Cb antigene domains. No drug resistant mutation was found on NA gene but happened on matrix protein 2 (M2 gene). None of the mutations were found on the virulence related genes.

CONCLUSIONA high homology was found between the pandemic H1N1 virus in Beijing in 2009 and the reference vaccine strain A/California/07/2009(H1N1). Mutational sites related with the severe and fatal cases were found, but not the virulence related mutation.

Base Sequence ; China ; epidemiology ; Genes, Viral ; Genetic Variation ; Genome, Viral ; Hemagglutinin Glycoproteins, Influenza Virus ; genetics ; Humans ; Influenza A Virus, H1N1 Subtype ; genetics ; Influenza, Human ; epidemiology ; virology ; Neuraminidase ; genetics ; RNA-Binding Proteins ; genetics ; Viral Core Proteins ; genetics

OBJECTIVE: To determine the short-term efficacy and security of whole body hyperthermia (WBH) combined with chemotherapy for advanced cancer. METHODS: Different chemotherapy regimens were applied in 138 patients with advanced cancer. Among them, 68 patients (Group A) didn't receive any other therapies. The other 70 patients (Group B) received WBH together with chemotherapy. WBH was maintained at 40 degrees C approximately 42 degrees C for 50 approximately 60 min (once or twice every week and 4 times a cycle). RESULTS: In Group A, the rate of complete remission (CR) was 2.9%, partial remission (PR) was 36.8%, stable disease was 35.3%, progressive disease was 25.0%, the overall response rate (CR + PR) was 39.7%; while in Group B, the corresponding figures were 5.7%, 52.9%, 25.7%, 25.0%, and 58.6%, respectively. There was significant difference between the two groups (P < 0.05). The rates of III + IV gastrointestinal tract andmyelosuppression toxicities were 26.5% and 16.2% in Group A, while 27.1% and 18.6% in Group B. No significant difference was found. CONCLUSION WBH combined with chemotherapy is efficient and safe for advanced cancer, and is worth generalizing extensively.
Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Combined Modality Therapy ; Female ; Humans ; Hyperthermia, Induced ; Lung Neoplasms ; therapy ; Male ; Middle Aged ; Ovarian Neoplasms ; therapy ; Stomach Neoplasms ; therapy ; Treatment Outcome

OBJECTIVEBotanical characters of germplasm resources of Dioscorea were observed and compared, which could to offer reference for its genetic improvement, germplasm resource identification and classification.

METHODBased on field cultivation, twenty-four morphological traits of ninety-four Dioscorea germplasm resources were observed or determined. And the morphological differences among germplasm resources were compared by principal component analysis and cluster analysis.

RESULTThere were ample morphological diversity in the twenty-four traits, in especially in leaf size and tuber characters of the ninety-four Dioscorea germplasm resources. The first seven principal components which accounted for 80. 957% of total variance were extracted from the principal component analysis. The ninety-four germplasm resources could be divided into four clusters, which belonging to Dioscorea opposite, D. persimili, D. fordii and D. alata respectively.

CONCLUSIONThere were large morphological variation among germplasm resources on Dioscorea. Identification of germplasm resources of Dioscorea should focus on leaf size and tuber characters.

China ; Cluster Analysis ; Dioscorea ; classification ; genetics ; growth & development ; Geography ; Phylogeny ; Plant Leaves ; anatomy & histology ; genetics ; growth & development ; Plant Roots ; anatomy & histology ; genetics ; growth & development ; Plant Stems ; anatomy & histology ; genetics ; growth & development ; Principal Component Analysis

Objective To investigate the immunological level against influenza A (H1N1)2009 in Beijing and provide evidence to evaluate the developing trend of the disease. Methods Between Nov. 27,2009 and Dec. 23,2009, subjects were randomly selected from patients in hospitals (infectious and respiratory diseases related departments were excluded) ,volunteers in blood donation center and healthy subjects attending the physical examination center. Questionnaire survey was conducted and serum samples were collected to detect the hemagglutination-inhibition (HI) antibody against influenza A(H1N1) 2009 virus. Results 856 subjects participated in this survey, and 127 showed positive HI antibody to this pandemic virus. The proportions of sero-positivity among 0-5 ,was no significant difference in the sero-positivity between males and females (P=0.693). The analysis, factors as age, acute respiratory symptoms and the rate of pandemic (H1N1) 2009 vaccination were significantly associated with sero-positivity of HI antibody to the influenza A (H1N1) 2009 virus. Conclusion Above 15% of the population in Beijing showed protective antibody against influenza A (H1N1) 2009 virus, indicating the development of immunological barrier to this disease had been formed, to some extent.