0.05). PET/CT was more sensitive than B ultrasound and mammography in diagnosing axillary disease(P

Objective To explore the correlation between the increasing of blood glucose and cytokines in malignant tumor patients after chemotherapy.Methods According to the blood glucose after chemotherapy,155 cases of malignant tumor patient were divided into 3 groups:euglycemia group,IGT(impaired glucose tolerance)group and DM(diabetes mellitus)group.The variance of cytokines in the 3 groups were analyzed.Results Compared with pre-chemotherapy,IL-6,TNF-αincreased greatly in IGT group and DM group,while IL-10 decreased greatly.The statistical difference were obvious compared with euglycemia group.Conclusion There are close correlation between the increasing of blood glucose and cytokines in malignant tumor patients after chemotherapy.

Objective To detect serum protein spectrum in gastric cancer, screen the serum proteins related to gastric carcinoma and build auxiliary diagnosis model with SELDI-TOF-MS, Methods The serum proteomic fingerprints were detected by SELDI-TOF-MS and CM10 proteinchip. The sera came from 50 first visit gastric cancer patients who were diagnosed by pathological method and 16 healthy peo- ple. The data were analyzed by Biomarker Wizard Software and the proteomic fingerprint of gastric carcinoma model was developed by BPS (biomarker pattern software). Results Compared with the healthy people group, there were 34 significant different protein peaks in the gas- tric carcinoma group. And the diagnosis model composed with 6 proteins (M/Z values were 6016, 6744, 2822, 4474, 7892 and 3242) could classify the 2 groups correctly. In the test group, the sensitivity and specificity were 96% and 93.75% respectively, the accuracy was 95.45%. Conclusion SELDI-TOF-MS method show features such as microcontent, fast and high- resolution etc. It could be utilized to screen significant proteins and develop an auxiliary diagnosis model in gastric carcinoma, which may be used to diagnose this disease.

Objective To study the effect of diet containing different proportions of porphyra powder on relieving constipation, volatile organic compounds and inhibiting intestinal E. coli. Method Mice were divided into 3 groups: blank group, 2 test groups. After the mice were allotted for different concentrations of porphyra powder diet for 30 d, the body weight of mice, water-holding capacity, the number and weight of feces within 24 h, the feces pH, E. coli counts and the first black defecating time were detected. The odorous compounds in feces were also measured by headspace solid phase microextraction coupled with GC-MS. Results Compared with the blank group, the water absorbed and number and weight of feces were significantly increased(P

The basic stress pathway above the acetabular dome is important for the maintenance of implant stability in acetabular reconstruction of total hip arthroplasty (THA). The purpose of this study was to describe the basic stress pathway to provide evidence for clinical acetabular reconstruction guidance of THA. A subject-specific finite element (FE) model was developed from CT data to generate 3 normal hip models and a convergence study was conducted to determine the number of pelvic trabecular bone material properties using 5 material assignment plans. In addition, in the range of 0 to 20 mm above the acetabular dome, the models were sectioned and the stress pathway was defined as two parts, i.e., 3D, trabecular bone stress distribution and quantified cortical bone stress level. The results showed that using 100 materials to define the material property of pelvic trabecular bone could assure both the accuracy and efficiency of the FE model. Under the same body weight condition, the 3D trabecular bone stress distributions above the acetabular dome were consistent, and especially the quantified cortical bone stress levels were all above 20 MPa and showed no statistically significant difference (P>0.05). Therefore, defining the basic stress pathway above the acetabular dome under certain body weight condition contributes to design accurate preoperative plan for acetabular reconstruction, thus helping restore the normal hip biomechanics and preserve the stability of the implants.
Acetabulum ; anatomy & histology ; Arthroplasty, Replacement, Hip ; Biomechanical Phenomena ; Finite Element Analysis ; Hip Prosthesis ; Humans ; Imaging, Three-Dimensional ; Stress, Mechanical ; Tomography, X-Ray Computed

Objective To compare the kinematics of the knee joint of normal Chinese people and people after fixed-bearing posterior stabilized total knee arthroplasty while doing weight-bearing deep knee-bending using fluoroscopy analysis.Methods From June to December 2010,ten volunteers and ten patients with fixed-bearing posterior stabilized total knee arthroplasty (TKA) were required to perform weight-bearing deep knee-bending activity under surveillance of roentgenization,motion between femur and tibia was analyzed with interval of 15° according to two-to three-dimensional (2D-3D) registration technique.Results During weight-bearing deep knee-bending,the average weight-bearing maximal flexion was 136° in the normal group,which was significantly higher than the 125° in the TKA group.All 10 normal knees present posterior translation of femoral condyle during deep knee-bending,posterior translation of the lateral condyle was greater than medial condyle,thereby creating a medial pivot type of axial rotational pattern in which the tibia internally rotates relative to the femur as flexion increased.The average amount of posterior femoral translation of the medial condyle was 7.3±1.2 mm,whereas the lateral condyle translated posteriorly 19.3±3.1 mm.All knees experienced tibia rotated internally during progressive flexion,and the average amount of axial rotation for the ten subjects from 0° to 135° was 23.8±3.4°.From extension to maximal flexion,the average amount of posterior translation of medial condyle was 1.4±0.6 rmm,whereas the lateral condyle translated 6.4±1.7 mm in the posterior direction in the fixed-bearing posterior-stabilized TKA.The average amount of tibial internal rotation was 8.5°±3.4°.Conclusion In normal Chinese people,during knee flexion activities the lateral condyle experiences significantly more amount of posterior translation than the medial condyle,leading to the tibia present medial pivot internal rotation relative to the femur,and the PFC-Sigrna fixed-bearing posterior stabilized designs has the similar kinematics with normal knee,but the posterior condylar translation and tibial axial rotation are much less than the normal.

Objective:To investigate the changes and correlation of intestinal and pulmonary microecological structures in patients with ventilator-associated pneumonia (VAP).Methods:A prospective observational study was conducted. Thirty-one patients with VAP admitted to the department of critical care medicine of General Hospital of Ningxia Medical University from May 1st 2019 to May 1st 2020 were enrolled. Feces and alveolar lavage fluid samples from patients with the same day, feces and alveolar lavage specimen flora composition and the structure of biological information analysis by 16S rRNA sequencing technologies, the comprehensive sequencing results, and clinical data of patients were analyzed.Results:① The diversity (abundance and diversity) of flora in the alveolar lavage fluid of VAP patients was higher than that of fecal flora. Among them, Ace index, Chao index and Shannon index describing the abundance of flora showed statistically significant differences [Ace index: 305.89 (214.39, 458.66) vs. 204.51 (165.15, 247.61), Chao index: 259.83 (194.20, 459.31) vs. 187.67 (153.28, 234.01), Shannon index: 3.01 (2.39, 3.54) vs. 2.55 (1.86, 2.95), all P < 0.05], but there was no significant difference in Simpson index describing diversity [0.14 (0.08, 0.27) vs. 0.19 (0.10, 0.33), P > 0.05]. ② In the sequencing results of feces and alveolar lavage fluid of VAP patients, there were some intestinal related bacteria groups with high abundance, such as Escherichia-Shigella, Faecalibacterium, Bacteroides, and Lachnospira, etc. ③ In 31 VAP patients, suspicious pathogenic bacteria was found in 20 cases (6 cases of Streptococcus viridans, 5 cases of Escherichia coli, 3 cases of Klebsiella pneumoniae, 3 cases of Acinetobacter baumannii, 2 cases of Staphylococcus aureus, 1 case of Pseudomonas aeruginosa), and the same suspected pathogens also existed in the 17 patients' alveolar lavage and waste sequencing. ④ Fourteen VAP patients combined with sepsis, 14 patients without sepsis were selected for sample size matching. The results showed that, Jaccard similarity index to describe lung-correlation of intestinal flora in VAP with sepsis group was significantly elevated, and the difference was statistically significant (0.24±0.08 vs. 0.19±0.06, P < 0.01). Conclusions:There is a certain correlation between pulmonary and intestinal flora in VAP patients. In addition to the exclusion of pulmonary infection caused by environmental and upper respiratory micro-inhalation, the lower digestive tract may also be source of infection.

Objective To detect the expression of Cytokeratin 19 (CK19) and human mammaglobin (hMAM) mRNA in the peripheral blood of breast cancer patients dynamically and to evaluate its clinical significance.Methods The expression of CK19 and hMAM mRNA was evaluated by real-time fluorescent quantitative reverse transcriptase pelymerase chain reaction in the peripheral blood of 40 breast cancer patients and 10 healthy volunteers.Results The expression of CK19 and hMAM in the peripheral blood of 40 breast cancer patients were higher than healthy donors.The positive expression rate of CK19 and hMAM was descending tendency during treatment.The different staging expression rate had no differences between before treatment and during treatment,but after treatment the expression rate had remarkably differences (CK19:P=0.044;hMAM:P=0.005).If the expression of CK19 and hMAM was continual positive,the rate of recurrence and metastasis would be higher (P＜0.001).Coneluslons Real-time fluorescent quantitative RT-PCR may detect the expression of CK19 and hMAM in the peripheral blood of breast cancer patients,and it is a sensitive and specific technique.The resuits suggest a possible use of this approach for evaluating prognosis,monitoring recurrence.

Objective To explore the relationship between the four different molecular subtypes of locally advanced breast cancer(LABC) and the clinical effect of neoadjuvant chemotherapy containing docetaxel and anthracyclines on breast cancer. Methods The record of 68 patients with LABC who were treated with the therapeutic scheme was reviewed. Breast cancer molecules were diagnosed by core needle biopsy through IHC and were divided into four subtypes. After 3 to 5 courses of treatment, the relationship of molecular subtype and clinical effects was analyzed. Results Univariate analysis showed that absence of estrogen receptor (ER) expression and size of tumor (≤5cm) were predictive factors for clinical complete response (cCR) (P<0.05).Over expression of HER-2 and molecular subtypes were predictive for pathologic complete response (pCR) (P<0.05). pCR rate of HER2+/ER- subtype in this therapeutic scheme was, higher than that of other subtypes and pCR rate of Luminal A subtype was the lowest. Multivariate analysis showed that molecular subtypes cant be the predictive factors for this therapeutic scheme (P>0.05) and only HER-2 (P<0.05) was the independent variable in predicting pCR for this therapeutic scheme. Conclusion Molecular subtypes can not independently predict pCR for neoadjuvant chemotherapy regimen containing docetaxel and anthracyclines.

Objective To observe the expression of IL-6 mRNA and study the mechanism of acupuncture in focal cerebral ischemia.Methods In situ hybridization was used to detect the expression of IL-6 mRNA in the sham operation group, control group and acupuncture group 2 h, 6 h, 12 h, 24 h after reperfusion in the brain of middle cerebral artery occlusion rats, meanwhile and also observe ultrastructure in cortex of ischemic brain tissue 24 h after reperfusion.Results The sham operation group showed a basic expression of IL-6 mRNA in cortex and striate body. The cells expressing IL-6 mRNA were increased 2 h after ischemic reperfusion in cortex and striate body and peaked 24 h after reperfusion in control group and acupuncture group. The cells expressing IL-6 mRNA in cortex of ischemic area were stronger in acupuncture group than in control group at every research time point besides 2 h after ischemic reperfusion. The cells expressing IL-6 mRNA striate body of ischemic area were stronger in acupuncture group than in control group at every research time point. Acupuncture can lighten the degeneration of cell nucleolus and necrosis of cell, resume the integrity of the nucleolus, improve the function of mitochondrial and endoplasmic, and have significant difference with control group. Conclusion Acupuncture can increase the cells expressing of IL-6 mRNA.