Humans ; Lung ; cytology ; Macrophages, Alveolar ; Pulmonary Fibrosis ; pathology ; Silicosis ; pathology

Humans ; Minimally Invasive Surgical Procedures ; utilization

OBJECTIVETo explore the effect of Danshensu on the lipid metabolism of hyperlipidemic rats.

METHODSixty clean male SD rats were selected. Twelve of them were selected in the basic control group and fed with common foods, and the remaining rats were fed with the high-fat feeds. After the successful modeling, they were randomly divided into the high-fat control group and low dose (10 mg x kg(-1) x d(-1)), medium dose (20 mg x kg(-1) x d(-1)) and high dose (40 mg x kg(-1) x d(-1)) Danshensu (dissolved in saline) groups. Both of the two groups were abdominally injected with the same volume of normal saline once a day for consecutively 30 days. The serum TG, TC, HDL-C and liver ACC1, FAS, HMGR, CPT-I mRNA expressions were detected.

RESULT AND CONCLUSIONDanshensu could inhibit the LDL-C level, timely clear redundant cholesterol and effectively regulate the lipid metablism of hyperlipidemic rats by reducing the TC content, decrease the fatty acid by reducing the FAS mRNA expression, and reduce the synthesis levels of endogenous cholesterol by inhibit the HMGR mRNA expression.

Animals ; Hyperlipidemias ; drug therapy ; metabolism ; Lactates ; pharmacology ; Lipid Metabolism ; drug effects ; Male ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo investigate the electrophysiological effect of Xin' an granule (XAG) on ventricular muscle cell in ischemic rabbits.

METHODSA total of 48 rabbits were divided into the normal group and the ischemic group, and then subdivided into three groups, the control group, the high and low-dose XAG groups, 8 in each group. Rabbits in the low-dose XAG group and the high-dose XAG group were gastrogavaged XAG at the daily dose of 0. 85 g/kg and 3.40 g/kg, while the others in the control group were given the equal dosage of normal saline. All the rabbits were treated three times per day for successive 10 days. The rabbit model of ischemia was established by intravenous injected with 2. 5 U/kg posterior pituitary injection. Five minutes later, the monophasic action potential (MAP) and electrocardiogram (ECG) of each rabbit in the different groups were recorded and compared.

RESULTS(1) To normal rabbits, XAG could significantly shorten the action 50% and 90% potential duration (APD)50 and APD90 of ventricular muscle cell (P < 0.05 ), and high-dose of XAG could significantly increased the Vmax of MAP(P <0. 05). (2) While to ischemic rabbits, XAG could significantly prolong APD50 and APD90, and significantly increased the action potential amplitude (APA) and Vmax of MAP (P < 0. 05).

CONCLUSION(1) XAG can significantly shorten APD50 and APD90 of ventricular muscle cell, and high-dose XAG significantly increase the Vmax of MAP of normal rabbits. (2) XAG can delay and alleviate the manifestation characteristics of action potential of ventricular muscle cell during ischemia.

Action Potentials ; drug effects ; Animals ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Electrocardiography ; Heart Ventricles ; cytology ; drug effects ; Medicine, Chinese Traditional ; Myocardial Ischemia ; physiopathology ; Myocytes, Cardiac ; drug effects ; physiology ; Rabbits

To observe the effect of Ligusticum wallichii-containing serum on the expressions of Toll-like receptor 4 and myeloid differentiation factor 88 in hepatic stellate cells. Clean-grade SD rats were randomly divided into 5 groups and orally given L. wallichii decoction, colchicine and normal saline for 7 d to prepare L. wallichii-containing serums. Except for the blank group, all of the remaining groups were stimulated with LPS 1 mg x L(-1) for 24 h. After being intervened, the L. wallichii-containing serums were cultured in 5% CO2 incubator at 37 degrees C for 24 hours. The expression of TLR4 and MyD88 were detected by RT-PCR and Western blot. After HSC was stimulated with LPS, TLR4 and MyD88 mRNA and protein expressions were significantly higher than the blank control group (P < 0.01). After being intervened with L. wallichii-containing serum, TLR4 and MyD88 mRNA and protein expressions were notably lower than the model group (P < 0.05 or P < 0.01). In conclusion, L. wallichii-containing serum could regulate the TLR4 signaling pathway and show the anti-fibrosis effect by inhibiting the expression of TLR4 and MyD88 in LPS-induced HSCs.
Animals ; Female ; Hepatic Stellate Cells ; drug effects ; metabolism ; Ligusticum ; Lipopolysaccharides ; pharmacology ; Liver Cirrhosis, Experimental ; drug therapy ; Myeloid Differentiation Factor 88 ; genetics ; physiology ; Phytotherapy ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley ; Toll-Like Receptor 4 ; genetics ; physiology

Objective: To understand the relationship between mental health status and vision-related quality of life( VRQL ) of students with moderate and high myopia, and to provide basis for the optimization of VRQL. Methods: Using convenient sampling method, the 8-18 years old students with moderate and high myopia were selected from Sichuan, Chongqing and Zhejiang. The mental health status and VRQL of students with moderate and high myopia were evaluated with Hospital Anxiety and Depression Scale and Quality of Life Scale for Ametropia. The multiple linear regression model was used to analyze the influencing factors for VRQL. Results: A total of 360 questionnaires were sent out and 354 were effectively recovered, with an effective rate of 98.33%. There were 116 ( 32.77% ) boys and 238 ( 67.23% ) girls; the median age was 16.65 years old. There were 211 ( 59.60% ) cases of moderate myopia and 143 (40.40%) cases of high myopia.There were 141 ( 39.83% ) found to be anxious and 176 ( 49.72% ) depressed. The median score of Quality of Life Scale for Ametropia was 64. The results of multiple linear regression analysis showed that sex ( β＇= -0.179 ), diopter ( β＇= 0.208 ), eyesight with glasses ( β＇= -0.229 ) and anxiety ( β＇= 0.439 ) were influencing factors for VRQL. Conclusion The mental health problems of the students with medium and high myopia are prominent; anxiety has a significant impact on the VRQL of the students.

ObjectiveTo evaluate the consistency of HER2 gene status before and after neoadjuvant chemotherapy in breast cancer by FISH (fluorescence in situ hybridization) and IHC (immunohistochemistry) techniques,and analyze the factor of the difference in the result and the feasibility of HER2 gene tested by FISH in the neoadjuvant chemotherapy breast cancer patients.Methods FISH and IHC for HER2 gene expression status was performed on the archival paraffin-embedded sections of breast cancer tissues before and after neoadjuvant chemotherapy from 135 Chinese female patients,x2 test of paired comparison of enumeration data and Kappa analysis were used to compare the difference and consistency of this two techniques.ResultsThe detection rate of HER2 status in punctured cancer tissues before neoadjuvant chemotherapy by FISH and HER2 did not show statistical difference in our research while the opposite result were showed in cancer tissues after neoadjuvant chemotherapy.Moreover,the two techniques of HER2 test were less concordant in patients accepted taxanes neoadjuvant chemotherapy than CAF treatment.ConclusionsThe consistency of FISH and IHC techniques of cancer tissues before neoadjuvant chemotherapy gained advantage compared to the ones after neoadjuvant chemotherapy.Patients received neoadjuvant chemotherapy especially taxanes should take the test of HER2 gene status by FISH technique.

Objective To investigate current status of cognitive behavior on chronic obstructive pulmonary disease (COPD) to provide evidence for targeted intervention.Methods A questionnaire survey on COPD was conducted at 12 settings of 4 prefectures that were sampled from Ningxia Province using multistage stratified cluster random sampling method,and 4268 residents at least 40 years old were interviewed.Multivariate linear regression method was used for data analysis.Results A total of 4056 valid questionnaires were returned from 4200 participants with an effective response rate of 96.57％.Only 6.51％(264/4056) had an idea of COPD,13.88％ (563/4056) regarded cigarette smoking as a risk factor of chronic bronchitis and emphysema,and 6.39％ (259/4056) knew pulmonary function tests.Home income,living area,education level and ethnicity were main factors influencing COPD awareness.The percentage of current cigarette smoking was 28.80％ (1168/4056) with 20.40％ in Hui (Muslim) ethnic group and 34.63％ in Han ethnic group (P ＜ 0.05 ) ; smoking index and severe smokers were not significantly different between the two groups ( P ＞ 0.05 ).Conclusion Our data suggest a considerably poor knowledge and prevention awareness of COPD in Ningxia Province.In spite of relatively lower cigarette smoking rate,the problem that Hui (Muslim) ethnic people are lack of COPD awareness should not to be neglected.

OBJECTIVETo identify genetic alterations in diffuse large B-cell lymphoma (DLBCL) and to analyse the relationship between the genetic aberrations and the clinical characteristics.

METHODSUsing comparative genomic hybridization (CGH) to investigate the genomic changes in 24 cases of DLBCL and to analyse the relationship between these aberrations and clinical parameters including Ann arbor stage, systemic symptoms, chemotherapy efficacy and survival.

RESULTSAberrations were detected in 62.5% patients of 24 cases; the most common chromosomal alterations included loss of 6q15-21 as well as gain of 18q11-ter, of which the incidences were 20.8% and 16.7%, respectively; with comparing clinical parameters between patients with normal CGH and abnormal CGH, we found that patients with abnormal CGH suffered more from stage III-IV and had higher incidence of systemic symptoms, poor chemotherapy efficacy and poor survival (P<0.05), but there was no difference observed in the incidence of extranodal involvement between two groups.

CONCLUSIONThe gains and/or losses of genomic DNA from DLBCL patients are the common molecular cytogenetic aberrations; loss of 6q15-21 and gain of 18q11-ter are nonrandom event to DLBCL patients; abnormal CGH is a clinical parameter reflecting malignant progressive course and poor survival to DLBCL patients.

Chromosome Aberrations ; Female ; Humans ; Karyotyping ; Lymphoma, B-Cell ; genetics ; pathology ; physiopathology ; Lymphoma, Large B-Cell, Diffuse ; genetics ; pathology ; physiopathology ; Male ; Nucleic Acid Hybridization ; Statistics as Topic

T cell immune receptor with Ig and ITIM domains (TIGIT), a promising new target in cancer immunotherapy, plays a critical role in limiting adaptive and innate immunity against tumors. The extracellular domain of human TIGIT was used to immune BALB/c mice, and a new anti-human TIGIT chimeric antibody (c7D3) was developed. The mice in this study were used in accordance with the international guidelines for the care and use of laboratory animals, and the animal study was approved by the Institutional Animal Ethics Committee of AbMax Biotechnology. The biological activity of c7D3 was studied. The results showed that c7D3 exhibited high affinity for TIGIT and effectively inhibited the interaction between TIGIT and its ligands. Cell-based assays indicated that c7D3 induced strong luciferase signaling in TIGIT/CD155 signaling reporter assay and enhanced cytokine secretion in a T cell stimulation assay. The data showed that c7D3 has high binding affinity and excellent blocking bioactivity, supporting the further advancement for therapeutic application.