Child ; Female ; Humans ; Influenza A Virus, H5N1 Subtype ; Influenza, Human ; complications ; diagnostic imaging ; Pneumonia, Viral ; diagnostic imaging ; virology ; Radiography

Objective To investigate the value of X-ray,CT and MRI in diagnosing early spinal tuberculosis by constructing lum-bar vertebra tuberculosis model in New Zealand rabbits.Methods Forty healthy New Zealand rabbits were randomly divided into the infected group (n=30)and the control group (n= 10).All rabbits were performed lumbar vertebra surgery,and then underwent imaging and histopathologic examination at 4,6,8 weeks respectively.Results The sensitivity of X-ray,CT and MRI in detecting tuberculosis lesions were 46.13%,76.3%,and 92.3%,respectively.MRI and CT were better than X-ray for displaying the de-struction range limited in a single vertebra (P <0.05).Combination with routine MRI and diffusion-weighted imaging (DWI)could find the vertebra tuberculosis at the early stage.According to the HE staining,pus cells,epithelioid cells or necrosis were seen in the tissue sections of vertebra and paraspinal soft tissues in the infected group.Conclusion X-ray,CT and MRI could provide some information for the early diagnosis of spinal tuberculosis,and MRI is more sensitive.

50?mol/L induced markedly oncotic cell death,but no apoptosis was observed.TEM examination indicated that a form of cell death accompanied by cellular swelling,organelle swelling and vacuolization,mitochondrial swelling and cristae membrane loss,and nucleus swelling, chromatin scattering or karyolysis,which characterized as oncosis.When treated with 50,200?mol/L of ART for 5 h, the intracellular ROS level of Panc-1 cells markedly increased to 1.60 and 4.49 fold compared with that of untreated cells,respectively.Pretreatment with TCEP effectively attenuated ART-induced intracellular ROS level and decrease the oncosis in Panc-1 cells.Conclusions:ART exerts profound cytotoxic effects on Panc-1 cells and induces an oncosis- like cell death,which is quite different from apoptosis.The cellular generation of ROS and its peroxidation damage may be one of the mechanisms for its anti-tumor effect on pancreatic cancer.

To identify the active constituents in vitro and blood-absorbed ingredients in vivo from Yin Chen Hao decoction provides scientific evidence for probing its prevention and treatment mechanism on acute liver injury. An ultrahigh performance liquid chromatography quadrupole-time of flight-mass spectrometry (UPLC-QTOF/MS) method was applied for analysis of Yin Chen Hao decoction and the serum samples of mice with con-A induced acute liver injury after preventive oral administration for 14 days (the use of all laboratory animals in this study was approved by the Ethics Committee of the Naval Medical University, 19YF1459400). A total of 90 chemical constituents were identified from Yin Chen Hao decoction, mainly were flavonoids, terpenoids, tannins, quinones. 5 prototype compounds were identified in the serum, including chrysophanol, deoxyrhapontin-8-O-gallate, mussaenosidic acid, herniarin, emodin. The established UPLC-QTOF/MS method could efficiently and sensitively identify the constituents in vitro and blood-absorbed ingredients of Yin Chen Hao decoction, primarily clarify the material basis of its hepatoprotective effect, and provided a scientific basis for the quality marker selection and the pharmacodynamic material basis research on the decoction.

OBJECTIVETo evaluate the clinical results after arthroscopic rotator cuff repair using a suture-bridge technique in late middle-aged adults.

METHODSA retrospective analysis of 30 patients with rotator cuff tears, who were treated consecutively between December 2012 and December 2013 at our clinic, was carried out to evaluate the outcome of arthroscopic suture-bridge technique. The visual analogue scale (VAS), the range of motion (ROM), the rating scale of the University of California at Los Angeles (UCLA), and the shoulder index of the American Shoulder and Elbow Surgeons (ASES) were determined as the evaluation criteria.

RESULTSThe mean follow-up period was 13 months. The follow-up rate was 100%. The study included 0 small, 16 medium, 12 large and 2 massive rotator cuff tears. At the latest follow-up, the VAS score decreased significantly from preoperative 6.3±3.2 to 0.8±1.4 at rest,and from preoperative 7.7±2.1 to 1.7±1.6 during motion. The UCLA score improved significantly from 15.1±4.6 preoperatively to 31.2±5.0 at follow-up. The ASES shoulder index improved significantly from 30.2±16.0 preoperatively to 80.4±13.0 at follow-up. The ROM improved significantly. The satisfactory rate was 94%. There were no complications.

CONCLUSIONThe results of this study indicate that the arthroscopic suture-bridge technique is an effective and reliable treatment for patients with rotator cuff tear in late middle-aged adults.

Age Factors ; Aged ; Arthroscopy ; methods ; Female ; Humans ; Male ; Middle Aged ; Range of Motion, Articular ; Rotator Cuff ; surgery ; Suture Techniques

cryopreservation periodontal tissue. METHODS:Periodontal tissue was scraped from healthy human teeth and divided them into three equal parts:fresh group, harvesting periodontal ligament stem cel s from fresh tissue;5%dimethyl sulfoxide group, 5%dimethyl sulfoxide added into the cryopreservation system;10%dimethyl sulfoxide group, 10%dimethyl sulfoxide added into the cryopreservation system. One month later, periodontal ligament stem cel s were extracted from the cryopreserved periodontal ligament from the latter two groups. RESULTS AND CONCLUSION:In the time that cel s swam out of tissue mass and cel harvest amount, the 5%dimethyl sulfoxide group was inferior to the fresh group but better than the 10%dimethyl sulfoxide group (P<0.05). No differences were found among the three groups in the fol owing aspects (P>0.05):colony formation rate of passage 1 periodontal ligament stem cel s, cel survival rate, proliferation ability of passage 3 periodontal ligament stem cel s, cel growth curve and surface marker expression of periodontal ligament stem cel s. The results suggest that the 5%dimethyl sulfoxide added cryopreserved system for periodontal ligament tissue cannot only shorten the time of periodontal ligament stem cel s amplification in vitro, ensure cel harvest and maintain basic cel ular biological characteristics, but also reduce the total amount of the dimethyl sulfoxide and the direct damage to the cel s caused by repeatedly frozen cel s, thereby providing a more secure guarantee for the future implementation of clinical transplantation therapy. So, the 5%dimethyl sulfoxide added cryopreserved system may be the new selection for donor tissue storage.

Objective To investigate the clinical significance of soluble CD40 ligand (sCD40L ) and lipoprotein associated phospholipase A2 (Lp-PLA2 ) in the assessment of coronary artery severity and risk classification in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS).Methods Of the 9 6 patients with coronary heart disease diagnosed by coronary angiography,2 8 patients had stable angina pectoris (SAP),38 patients unstable angina pectoris (UAP)and 30 patients acute non-ST-segment elevation myocardial infarction (NSTEMI).Another 30 patients with non-coronary heart disease (NC)served as controls.The sCD40L and Lp-PLA2 levels were determined by enzyme-linked immune sorbent assay (ELISA)method.The Gensini score was used to assess the severity of coronary artery and analyze the correlation with sCD40L and Lp-PLA2.The correlation of sCD40L and Lp-PLA2 with GRACE risk score was analyzed too.Results ① sCD40L was significantly higher in NSTEMI and UAP groups than in SAP and NC groups (P<0 .0 5 ),but there was no significant difference between NSTEMI and UAP groups (P>0 .0 5 )or SAP and NC groups (P>0 .0 5 ).Lp-PLA2 was significantly higher in NSTEMI group than in UAP,SAP and NC groups (P<0.05).Lp-PLA2 was significantly higher in UAP group than in SAP and NC groups (P<0.05).② We found that sCD40L had obvious correlation with Lp-PLA2 (r=0.284, P<0.01),Gensini score (r=0.213,P<0.05),and GRACE (r=0.224,P<0.05).Lp-PLA2 was significantly correlated with Gensini score (r=0.270,P<0.05),and GRACE (r=0.323,P<0.01).③ Multivariate logistic regression analysis showed that Lp-PLA2 was independently associated with NSTE-ACS (P<0.05).Conclusion The sCD40L and Lp-PLA2 which were significantly elevated in NSTE-ACS are correlated with the severity of coronary artery disease.The two indexes indicate the instability of atherosclerotic plaque;thus they can be used as predictors of risk assessment in coronary heart disease.

Objective To detect the levels of CD31+/CD42b- and CD144+ endothelial microparticles (EMPs)in plasma,and analyze the relationship with carotid intima-media thickness (CIMT)and the risk factors of atherosclerosis.Methods Totally 122 outpatients and inpatients in our hospital were selected,and carotid artery ultrasound examination was performed.The results were divided into a thickening group (62 cases)and a control group (60 cases).Flow cytometry was used to detect the levels of CD31+/CD42b- and CD144+ EMPs in the blood to analyze the relationship between the level of endothelial cells and CIMT,and to investigate the relationship between the level of plasma EMPs and the risk factors of atherosclerosis.Results Compared with the control group,the levels of EMPs of CD31+/CD42b- and CD144+ were significantly higher.In the correlation analysis, plasma CD31+/CD42b- and CD144+EMPs levels were positively correlated with CIMT;in multi-factor Logistic regression analysis,CD31+/CD42b- EMPs levels were correlated positively with age,TC and Cys C;plasma CD144+ EMPs levels were correlated with UA and BMI.Conclusion The levels of CD31+/CD42b-,CD144+EMPs in plasma were correlated with CIMT,guiding early prevention of cardiovascular diseases.

Objective To evaluate abdominal imaging in AIDS.Methods The imaging examinations(including US,CT and MR)of 6 patients with AIDS associated abdominal foci were analysed retrospectively.All the cases were performed US,and CT scan,of which 4 performed enhanced CT scan and 1 with MR.Results Abdominal tuberculosis were found in 4 patients,including abdominal lymph nodes tuberculosis(3 cases)and pancreatic tuberculosis(1 case).The imaging of lymph nodes tuberculosis typically showed enlarged peripheral rim enhancement with central low-attenuation on contrast-enhanced CT. Pancreatic tuberculosis demonstrated low-attenuation area in pancreatic head and slightly peripheral enhancement.Disseminated Kaposi's sarcoma was seen in 1 case:CT and MRI scan demonstrated tumour infiltrated along hepatic portal vein and bronchovascular bundles.Pelvic tumor was observed in 1 case:CT scan showed large mass with thick and irregular wall and central low attenuation liquefacient necrotic area in the pelvic cavity.Conclusion The imaging findings of AIDS with abdominal foci is extraordinarily helpful to the diagnosis of such disease.Tissue biopsy is needed to confirm the diagnosis.

PURPOSE: Insulin resistance plays a role in the development of dementia and hypertension. We investigated a possible relationship between cognitive impairment and insulin resistance in elderly Chinese patients with primary hypertension. MATERIALS AND METHODS: One hundred and thirty-two hypertensive elderly patients (>60 years) were enrolled in this study, and assigned into either the cognitive impairment group (n=61) or the normal cognitive group (n=71). Gender, age, education, body mass index (BMI), waist hip ratio (WHR), total cholesterol (TC), triglyceride (TG), C-reactive protein (CRP), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), creatinine (Cr), fasting plasma glucose (FPG), fasting insulin (FINS), homeostasis model of assessment for insulin resistance index (HOMA-IR), systolic blood pressure, diastolic blood pressure, smoking history, atherosclerosis and the proportion of uncontrolled hypertension were compared between the two groups. Multi-factorial logistic regression analysis was performed. RESULTS: No significant differences were found in gender, age, TC, CRP, HDL-C, LDL-C, Cr, BP, smoking history, atherosclerosis and the proportion of uncontrolled hypertension between the two groups. The cognitive impairment group had lower education levels, and higher BMI, WHR, TG, FPG, FINS, and HOMA-IR levels than the control group. Logistic regression analysis revealed the levels of education, BMI, WHR, and HOMA-IR as independent factors that predict cognitive impairment in patients. CONCLUSION: Our study demonstrates that poor education and increased BMI, WHR, and HOMA-IR are independent risk factors for cognitive impairment in elderly patients with hypertension. Insulin resistance plays an important role in the development of cognitive impairment in primary elderly hypertensive patients.
Aged ; Case-Control Studies ; Cognition Disorders/*etiology ; Female ; Humans ; Hypertension/*complications ; *Insulin Resistance ; Logistic Models ; Male ; Risk Factors