Objective To investigate the relation of DNA content and SPF to the clinicopathological characteristic in lung cancer.Methods Fresh specimens taken from 56 patients with lung cancer and 36 patients with non-malignant pulmonary lesions were measured for DNA index(DI),S-phase fraction(SPF) by using FACSCalibur 4200 flow cytometry.Results ① DNA index(DI) of lung cancer was 1.18?0.33,0.99?0.07 in lung cancer and non-malignant groups,respectively.The percentage of heteroploid was 78.6% in lung cancer,(5.6%) in non-malignant.DI and the positive rate of heteroploid were significantly higher in lung cancer groups than that in non-malignant group(P0.05);③ It was demonstrated that SPF was significant higher in lung cancer groups than that in non-malignant group. The SPF of heteroploid tumors was higher than that of diploid tumors(P

Medicine, Chinese Traditional ; Mind-Body Relations, Metaphysical

It has been proved recently that insulin signal transduction pathway and insulin resistance exist in islet?-cells.Defects in insulin signaling of the?-cells decrease glucose-stimulated first-phase insulin release, inhibit proliferation of?-cells and promote apoptosis of?-cells.Obesity accelerates the development of insulin resistance of?-cells,which may play a central role in the pathogenesis of type 2 diabetes mellitus.

[Summary] To investigate the effect of gliclazide on the proliferation and differentiation in MC3T3-E1 cells exposed to normal glucose concentration by applying CCK-8 and RT-PCR. Gliclazide improved the proliferation and stimulated COL-I, OPN and Runx2 mRNA expression in MC3T3-E1 cells, the best concentration of gliclazide was 20μmol/ L, the expression of COL-1 and OPN mRNA had a significant positive correlation with Runx2 binding activity.

After MC3T3-E1 cells were treated with 1,10,and 20 μmol/L glibenclamide for 48 h,the proliferation rate of cells was detected by CCK-8 assay.Flow cytometry was used to test cell apoptosis.The mRNA expressions of collagen I (COL-1) and osteopontin (OPN) were tested by realtime fluorescence quantitative PCR.Western blot was used to detect the expression levels of apoptosis-related proteins Bax and Bcl-2.The results showed that compared with the control group,the proliferation rate of MC3T3-E1 cells was gradually increased (P＜0.05),the apoptosis rate decreased (P ＜ 0.05),the expressions of COL-1 mRNA,OPN mRNA,and Bcl-2 protein were progressively raised (P＜0.05),and the expression of Bax protein were gradually decreased (P＜0.05) along with increasing concentration of glyburide.It suggested that glibenclamide could promote the proliferation and differentiation of MC3T3-E1 cells in high glucose and may inhibit apoptosis in a concentration-dependent manner within a certain range.

Objective To evaluate the value of 2D ultrasound and elastic strain ratio (SR) in diagnosis of thyroid nodule by fine needle aspiration (FNA).Methods 196 thyroid nodules were analyzed retrospectively with 2D ultrasound,elastography and FNA results,pathology results as the golden standard.A receiver operating characteristic (ROC) curve was used to identify the best cut-off point of SR.The Logistic regression analysis was used to evaluate the variables effectiveness on age,nodule echo,calcification and SR.Tried to discuss how to use SR before or after US-FNA in diagnosis of thyroid nodule.Results The SR of the malignant nodules group was significantly different from the benign nodules group,and the best cut-off point was 0.5 with sensitivity 91.7％,specificity 90.2 ％ and accuracy 90.8 ％.The Logistic analysis results were SR,age,echo,calcification according to the odds ratio.SR can screened nodules without puncture necessary before FNA,and increase the FNA sensitivity,specificity and accuracy after FNA.Conclusions SR has good application value in diagnosis thyroid malignant tumor.SR can reduce unnecessary FNA and make a supplementary diagnosis of FNA.

Adolescent ; Antigens, CD34 ; metabolism ; Bone Neoplasms ; diagnostic imaging ; metabolism ; pathology ; Chondrosarcoma, Mesenchymal ; metabolism ; pathology ; Diagnosis, Differential ; Hemangiopericytoma ; diagnostic imaging ; metabolism ; pathology ; Humans ; Male ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Sarcoma, Synovial ; metabolism ; pathology ; Tomography, X-Ray Computed ; Vimentin ; metabolism

To establish induction and liquid culture system for hairy roots of Danshen (Salvia miltiorrhiza), Agrobacterium rhizogenes A4, LBA9402, 15834 as test bacterium were used to infect aseptic leaves of Danshen. The hairy roots were induced and positive transgenic hairy roots were selected with PCR using rolB and rolC as the target gene. Then hairy roots of S. miltiorrhiza were harvested and salvianolic acids were extracted with 70% methanol containing 1% formic acid. The content of salvianolic acid B (SalB) and rosmarinic acid (RA) were determined by HPLC. According to the above research results, the Danshen hairy roots induced by A. rhizogenes LBA9402 were inoculated into the following group of culture media: MSOH, MS, B5, and 6,7-V liquid media. Then the same methods of extraction and determination for the content of Danshen hairy roots were adopted. Last, the hairy roots of S. miltiorrhiza induced by A. rhizogenes LBA9402 were inoculated into the MSOH liquid media with different pH values. The content of salvianolic acid were extracted with 70% methanol containing 1% formic acid and determined by HPLC. As a result, three kinds of A. rhizogenes A4, LBA9402, 15834 could induce hairy roots and Ri plasmids were integrated into the genome of S. miltiorrhiza by PCR. Danshen hairy roots induced by A. rhizogenes LBA9402 and A4 produced much more salvianolic acid, which were (3.27 ± 0.37)% [including (1.04 ±0.36)% of RA and (2.22 ± 0.29)% of SalB] and (3.17 ± 0.20)% [including (0.92 ± 0.31)% of RA and (2.25 ± 0.26)% of SalB], respectively. Hairy roots induced by A. rhizogenes LBA9402 when they were cultured in MSOH liquid media produced much more salvianolic acid, which was (4.56 ± 0.36)%, including (1.12 ± 0.26)% of RA and (3.44 ± 0.23)% of SalB. Hairy roots induced by A. rhizogenes LBA9402 produced the most salvianolic acid when they were cultured in MSOH liquid media with the pH value 4.81, which was 4.85%, including 1.16% of RA and 3.69% of SalB. So Danshen hairy roots induced by A. rhizogenes LBA9402 and A4 produced much more salvianolic acid when they were cultured in MSOH liquid media with the pH value 4.81. The research had established the foundation on genetic engineering to improve the quality of S. miltiorrhiza.
Agrobacterium ; physiology ; Benzofurans ; analysis ; metabolism ; Cell Culture Techniques ; instrumentation ; methods ; Cinnamates ; analysis ; metabolism ; Culture Media ; chemistry ; metabolism ; Depsides ; analysis ; metabolism ; Drugs, Chinese Herbal ; analysis ; metabolism ; Plant Roots ; chemistry ; growth & development ; metabolism ; microbiology ; Salvia miltiorrhiza ; chemistry ; growth & development ; metabolism ; microbiology

Acute Disease ; Adult ; Aged ; Female ; Humans ; Lipid Peroxidation ; Male ; Malondialdehyde ; blood ; Middle Aged ; Organophosphate Poisoning ; Oxidative Stress ; Superoxide Dismutase ; blood ; Xanthine Oxidase ; blood ; Young Adult

Burnout, Professional ; Humans