Objective To observre the change of plasma arginine vasopressin(AVP)in plasma and relationship of AVP with brain edema after traumatic brain injury(TBI).Methods The rat models of mild and severe degree local cerebral cortex injury were caused by free dropping.Radioimmunoassay was used to measure serial concentration of AVP in plasma in 45 rats with acute brain injuries at the 24th,48th,72th hour and the 5th day after brain injury.The content of injury brain water was measured by drying-wetting way.Results AVP levels had positive correlation with the severity of brain edema.The severer brain injury resulted in higher AVP level and longer persistent time of peak brain edema(P＜0.05).Conclusion AVP level is closely associated with edema after TBI.AVP may play a vital role in pathogenesis of brain edema.

Objective To evaluate the value of supersonic shear wave elastrography(SWE) in the diagnosis of benign and malignant breast lesions.Methods SWE was performed on 134 breast lesions of 123 female patients and 74 normal breast glands to determine the values of overall elastic modulus and dispersion,and ROC curves were used to assess the diagnosis boundary value of two kinds of data respectively.Results According to the diagnostic gold standard-histopathology,the values of overall elastic modulus and dispersion were statistically significant when comparing benign lesions and malignant lesions with normal glands.ROC curve displayed that,when the Youden index reached to maximum,the diagnosis boundary value of overall elastic modulus was 41.01 kPa,the sensitivity and specificity of the value were 68.5％ and 83.8％ respectively; the diagnosis boundary value of dispersion was 12.25 kPa,the sensitivity and specificity of the value were 87.0％ and 88.7％ respectively.Conclusions The values of overall elastic modulus and dispersion for solid breast lesions can be used to reflect the elastic characteristics of lesions quantificationally,which is useful to diagnose benign and malignant breast lesions in clinical.

Objective To further clarify the pathogenesis of different types of Kaposi′s sarcoma (KS) by measuring the protein expressions of caspase-3 and E-cad in tumor tissues of Xinjiang Uygur patients with acqured immunodeficiency syndrome (AIDS)-Kaposi′s sarcoma (KS) and classical KS.Methods From July 2011 to October 2014, 38 patients with KS at the First Affiliated Hospital of Xinjiang Medical University and Urumqi Infectious Disease Hospital were enrolled, among whom 28 were male and 10 were female, and all of them were uygur.Immunohistochemical and Western blot methods were used to detect the expressions of caspase-3 and E-cad proteins in 22 cases of AIDS-KS patients and 16 cases of classic KS.The quantitative data of normal distribution were analyzed by t test, while count data were compared with χ2 test with R × C table.Results KS lesions in patients with classic KS were confined to the skin, without mucosal, lymph node or visceral involvement.Lesions in AIDS-KS patients were not only confined to the skin and superficial lymph nodes, but also oral mucosa involved in 12 cases and internal organs involved in 7 cases.Liver and lung involvement was more common.The CD4+T lymphocyte count in patients with AIDS-KS was (200.8±166)/μL.All 15 AIDS cases with CD4+ T cell count less than 200/μL developed opportunistic infections.CD4+ T lymphocyte count of patients with classic KS was (562.52±222.66)/μL and the 16 patients with CD4+T lymphocyte count greater than 350/μL had no opportunistic infections.The results of immunohistochemistry showed that the positive expression rate of caspase-3 protein in KS tissues in patients with AIDS-KS was 68.2%, in patients with classic KS was 100.0%, with significant difference between two groups (χ2=7.37, P=0.01).The positive expression rate of E-cad protein in KS tissues in patients with AIDS-KS was 72.7%, in patients with classic KS was 100.0%, with significant difference between two groups (χ2=5.18, P=0.03).Western blotting showed that the gray value of caspase-3 in the KS tissue of patients with AIDS-KS was 0.55±0.36, and that in patients with classic KS was 0.86±0.56, with significant difference between two groups (t=-2.070, P<0.05).The gray value of E-cad in the KS tissue of patients with AIDS-KS was 0.54±0.41, and that in patients with classic KS was 0.85±0.45, with significant difference between two groups (t=-2.060,P<0.05).Conclusions There are differences in the protein expressions of caspase-3 and E-cad in tumor tissues of patients with AIDS-KS and classical KS in Xinjiang Uygur patients with Kaposi's sarcoma, which may correlate with a faster progression and a higher mortality rate for AIDS-KS.

Objective Previous studies showed that hypoxia preconditioning could protect cardiac function against subsequent myo-cardial infarction injury. However, the effect of hypoxia on left ventricular after myocardial infarction is still unclear. This study therefore aims to investigate the effects of hypoxia training on left ventricular remodeling in rabbits post myocardial infarction. Methods Adult male rabbits were randomly divided into three groups: group SO (sham operated), group MI (myocardial infarc-tion only) and group MI-HT (myocardial infarction plus hypoxia training). Myocardial infarction was induced by left ventricular branch ligation. Hypoxia training was performed in a hypobaric chamber (having equivalent condition at an altitude of 4000 m, FiO214.9%) for 1 h/day, 5 days/week for four weeks. At the endpoints, vascular endothelial growth factor (VEGF) in the plasma was measured. Infarct size and capillary density were detected by histology. Left ventricular remodeling and function were as-sessed by echocardiography.Results After the 4-week experiment, compared with the group SO, plasma VEGF levels in groups MI (130.27 ± 18.58 pg/mL,P< 0.01) and MI-HT (181.93 ± 20.29 pg/mL,P< 0.01) were significantly increased. Infarct size in Group MI-HT (29.67% ± 7.73%) was deceased remarkably, while its capillary density (816.0 ± 122.2/mm2) was significantly increased. For both groups MI and MI-HT, left ventricular end-diastolic and end-systolic dimensions were increased whereas left ventricular ejection fraction was decreased. However, compared with group MI, group MI-HT diminished left ventricular end-diastolic (15.86 ± 1.09 mm,P< 0.05) and end-systolic dimensions (12.10 ± 1.20 mm,P< 0.01) significantly and im-proved left ventricular ejection fraction (54.39 ± 12.74 mm,P< 0.05).ConclusionHypoxia training may improve left ven-tricular function and reduce remodeling via angiogenesis in rabbits with MI.

AIM:To investigate the expression of visfatin in the placenta of patients with preeclampsia and its significance.METHODS:The pregnant women (n=100) were divided into normal pregnancy group , mild preeclampsia group and severe preeclampsia group according to the severity of the disease .The pathological changes of the placenta were observed by hematoxylin-eosin staining .The expression of visfatin at mRNA and protein levels in the placenta was detected by real-time PCR and immunohistochemistry respectively .RESULTS:Compared with normal pregnancy group , the patho-logical changes of the placenta in preeclampsia groups was significant , showing that the structure and the form were disor-dered and incompleted in both cytotrophoblasts and syncytiotrophoblasts .The proliferation of cytotrophoblasts and the num-bers of the placental villi with syncytial knots were observed .The vascular numbers of villi were decreased and congested . The results of immunohistochemistry and real-time PCR showed that the visfatin protein was observed in the cytoplasm of cy-totrophoblasts and syncytiotrophoblasts among 3 groups.The expression of visfatin at mRNA and protein levels was in-creased with the severity of the preeclampsia .CONCLUSION:The injury and dysfunction of vascular endothelial cells in the villi exist in the patients with preeclampsia .High expression of visfatin at mRNA and protein levels in placenta of the patients with preeclampsia indicates that visfatin is closely related to preeclampsia .

Different processed products of Coptidis Rhizoma have its unique odor, which is an important assessment index for pro- cessed products identification of Coptidis Rhizoma. Objectify odor as an entry point in this study, an electronic nose technology was used, and a suitable method for Coptidis Rhizoma measurement was built firstly. Then different processed products of Coptidis Rhizoma were detected by the method built. Finally, different processed products were identified by combining with chemometrics based on the objective odor information obtained. Electronic nose detection indicated that a significant difference in odor between different processed products was performed. Coptidis Rhizoma processed or not can be distinguished based on statistical quality control (SQC) and soft independent modeling of class analogy (SIMCA). Principle component analysis (PCA) model showed that Coptidis Rhizoma and its various processed products discriminated obviously. In addition, in order to identify the processed products of Coptidis Rhizoma, a correct recognition rate of 100% was acquired by discriminant factor analysis (DFA) , and the initial identification rate and cross-validation recognition rate of linear discriminant analysis (LDA) is 100%, 94.4% respectively. In conclusion, differentiationin odor of different processed Coptidis Rhizoma was performed by the electronic nose technology used, and different products Coptidis Rhizoma were dis- criminated by combining with chemometrics. This research can be a reference for objective identification in odor of traditional Chinese medicine, and is good for the inheritance and development of traditional experience in odor identification.
Chemistry, Pharmaceutical ; Chromatography, High Pressure Liquid ; Coptis ; chemistry ; Drugs, Chinese Herbal ; analysis ; Electronic Nose ; Odorants ; analysis ; Principal Component Analysis ; Rhizome ; chemistry

In the development of diabetic nephropathy (DN), reactive oxygen specie (ROS) over much in vivo leads to oxidative stress(OS)-related renal injuries, which are characterized by the structural and functional changes in glomerular and renal tubular cells in morphology. The regulative approaches of OS involve the several signaling pathways, in which, both p38 mitogen-activated protein kinase (MAPK) signaling pathway and adenosine monophosphate-activated protein kinase (AMPK) signaling pathway play the important roles as the target of anti-oxidants. The interventional actions of Chinese herbal compound prescriptions and the extracts of single Chinese herbal medicine (CHM) on OS in the kidney in DN include regulating the balance between ROS and antioxidants, reducing the production of AGEs, inhibiting the expression of growth factors and intervening the activity of signaling pathways.
Animals ; Diabetic Nephropathies ; drug therapy ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Kidney ; drug effects ; metabolism ; Oxidative Stress ; drug effects ; Signal Transduction ; drug effects ; Treatment Outcome

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Disasters ; Earthquakes ; statistics & numerical data ; Female ; Humans ; Male ; Middle Aged ; Transportation of Patients ; Wounds and Injuries ; complications ; surgery ; therapy

Objective To observe the clinical features and cardiac magnetic resonance (CMR)imaging characteristics in patients with cardiac amyloidosis. Methods A total of 5 patients (4 males and 1 female) with the diagnosis of cardiac amyloidosis (3 were proven by heart transplantation, 2 by endomyocardial biopsy) were evaluated by electrocardiogram, echocardiogram, chest X-ray and CMR with delayed Gadolinium enhancement. Results Echocardiograms were abnormal in all five patients; chest X-ray showed pulmonary hemorrhage ( 3 ), cardiomegaly (5), pleural effusion (3); echocardiogram showed atrial enlargement, left ventricular wall thickening, limited ventricular wall motion, etc. CMR exhibited increased thickness of the left ventricular wall, mild to moderate depression of systolic function ( mean ejection fraction: 32.5% ± 15.0% ) and bilateral atrial enlargement with restriction of diastolic ventricular filling. In all patients, there were widespread enhancement of the thickened myocardium on delayed postcontrast studies. In 4 patients, global subendocardial delayed gadolinium enhancement was found, in papillary muscles, and interventricular septa with" zebra-like" sign in 3 patients. Left ventricular transmural delayed gadolinium enhancement was found in 1 patient. Conclusions CMR shows a characteristic pattern of global subendocardial delayed gadolinium enhancement in cardiac amyloidosis. The findings may be valuable in the diagnosis of cardiac amyloidosis.

Objective To explore the effects of astrocytes in cervical spinal cord posterior horn on allodynia in rat models of migraine.Methods Fifty-four male SD rats were randomly divided into 9 groups (each group n =6): blank group,sham surgery group,new inflammatory soup 3 d group (IS 3 d group),new inflammatory soup 7 d group(IS 7 d group),saline group,fluorocitrate (FCA)prevention group,FCA prevention control group,FCA treatment group,FCA treatment control group.Following the IS stimulation in the rat dual matter,Von-Frey hair was used to monitor the pain threshold of periorbital skin.Immunofluorescence technique was used to observe the expression of specific marker of astrocyte,glial fibrilary acidic protein (GFAP),and neuron activation marker,C-fos.Results ①Von-Frey hair study showed the thresholds of IS 3 d group and IS 7 d group were significantly decreased compared with the control group(3 d:5.3 ±0.3 vs 6.4 ±0.3,F =40.15;7 d:3.0 ±0.3 vs 6.3 ±0.2,F =382.5,both P ＜0.01).The pain thresholds of FCA prevention group and FCA treatment group both began to significantly increase at the day 4 (FCA prevention:5.5 ± 5.1 vs 5.1 ± 0.2,F =16.00 ;FCA treatment:4.3 ± 0.2 vs 3.0 ± 0.2,F =138.0,both P ＜ 0.01).②GFAP immunofluorescence showed that the mean optical density (A) values of IS 3 d group and IS 7 d group were significantly increased compared with the control group(3 d:24.5 ±4.4 vs 14.8 ± 2.5,F =32.54;7 d:38.9 ± 7.1 vs 14.6 ± 1.8,F =63.56,both P ＜ 0.01).()C-fosimmunofluorescence showed that mean A value of IS 3 d group was significantly increased compared with the control group (20.4 ± 2.3 vs 8.4 ± 1.1,F =129.0,P ＜ 0.01).The difference was not significant between the IS 7 d group and the control group.Conclusions Activated astrocytes contribute to the facial allodynia induced by chronic dural inflammation.Its inhibitor FCA could both prevent and treat the allodynia behaviour.All of these suggest that astrocytes may not only contribute to the initiation of mechanical allodynia but also the maintenance.