Burns ; complications ; Humans ; Multiple Organ Failure ; etiology ; prevention & control

【Objective】To observe the influence of hot-needle therapy and herbal medicine fuming-washing combined with western medicine for the treatment of rheumatoid arthritis(RA).【Methods】One hundred and twenty-eight RA patients were equally randomized into two groups: group A received hot-needle therapy and herbal medicine fuming-washing combined with western medicine of meloxicam,salazosulfamide,and methotrexate,and group B was treated with western medicine only.The treatment lasted one month.Symptoms and signs of early morning stiffness time,grip strength,joints with tenderness count,tenderness index,auricular rest pain,swollen joints count,swelling index as well as the evaluation by the patients themselves and the doctors were observed before and after treatment.Meanwhile,the changes of rheumatoid factor(RF),C-reactive protein(CRP),erythrocyte sedimentation rate(ESR),the white blood cell(WBC) count and platelet(PLT) count were evaluated before and after treatment.【Results】The total effective rate in group A was 78.1%,which was superior to 53.1% in group B(P

Objective To investigate the expression of microRNA-451 (miR-451) in female invasive ductal carcinoma (IDC) and its roles in tumor cell invasion.Methods Forty five IDC tissues and matched tumor adjacent tissues were collected between January and December in 2014.The expressions of miR-451 in tissues were detected by quantitative real-time polymerase chain reaction (qRT-PCR).The relationship between long noncoding RNA taurine regulated genes 1 (lncRNA-TUG1) and clinical features was analyzed by student-t test.miR-451 mimics was transfected into MDA-MB-231 cells.Transwell assay was used to measure cell invasion ability.The expression of c-myc,a potential target of miR-451,and its downstream genes,matrix metalloproteinase (MMP)-2 and MMP-9 were detected by qRT-PCR and Western-blot.Resuts The expression of miR-451 was significantly lower in IDC tissues than in matched tumor adjacent tissues (P ＜ 0.05).Low expression of miR-451 was positively associated with lymphatic metastasis (P ＜ 0.05) and advanced tumor node metastasis (TNM) stage (P ＜ 0.05).Up-regulation of miR-451 in MDA-MB-231 cells could significantly suppress cell invasion ability (P ＜0.05).c-myc expression was down-regulatedwhen miR-451 was transfected (P ＜0.05).As downstream genes of c-myc,the expressions of MMP-2 and MMP-9 were suppressed.Conclusions miR-451 is down-regulated in IDC tissues and associated with cell invasion.miR-451 might inhibit IDC progression by inhibiting c-myc/MMP axis.

OBJECTIVE:To establish a method for identification and determination of illegal adding of chemical substance glibenclamide in traditional Chinese medicine(TCM)for health care,and to provide the reference for the governmental de?partment of drug surveillance and drug inspection.METHODS:TLC and HPLC were employed to isolate and analyze the ex?tract from Qiaoqi capsule suspected of illegal addition of glibenclamide.Glibenclamide was identified by HPLC-DAD spec?trography and ESI-MS technology,and the content determination was made by HPLC.RESULTS:Both capsule sample A and B were detected to contain glibenclamide,the concentrations of which were1.51mg per capsule and0.55mg per capsule respectively.CONCLUSION:The established method is specific,sensitive,and convenient,and can be used efficiently for con?trol and surveillance of illegal adding of chemical substance glibenclamide in TCM for health care.

Objective To explore the clinical effect of IPL combined with tranexamic acid in the treatment of chloasma.Methods 50 patientss with chloasma were selected,and they were randomly divided into two groups by odd-and-even grouping method.The control group received IPL treatment,the study group was given photorejuvenation combined with tranexamic acid treatment.The MASI score,clinical efficacy and adverse reactions were compared between the two groups.Results The MASI score[(8.71 ± 0.82) points] and the total effective rate (92.00％) of the study group were significantly better than those of the control group [(11.35 ± 1.03) points,68.00％,t =3.10,x2 =4.39,all P ＜ 0.05].The incidence rate of adverse reaction betweem the two groups (16.00％,16.00％) had no significant difference (x2 =0.00,P ＞ 0.05).Conclusion Photorejuvenation combined with tranexamic acid has significant clinical effect in the treatment of chloasma.

OBJECTIVE: To improve superparamagnetic iron oxide nanoparticles (SPIO-NP) stability, biocompatibility and tumor-targeting and evaluate their tumor targeting in vitro. METHODS: The folic acid-carboxymethylchitosan-superparamagnetic iron oxide nanoparticles (FA-OCMCS-SPIO-NPs) were synthesized by "three-steps": at first, superparamagnetic oxide iron nanoparticles were synthesized by coprecipitation, then, O-carboxymethyl chitosan and folic acid were successfully immobilized on the surface of SPIO-NPs in turn. The fourier transform infrared spectroscopy, X-Ray diffraction were used to confirm their synthesis, meanwhile, transmission electron microscope (TEM), dynamic light scattering (DLS), Zeta-potential measurement and vibrating sample magnetometry (VSM) were applied to characterize their physicochemical properies. Ferrozine assay and Prussian blue staining were used to evaluate their tumor targeting in vitro. RESULTS: X-Ray diffraction showed the crystalline powder of FA-CMCS-SPIO-NPs agree with the standard Fe3O4, Fourier transform infrared results showed O-carboxymethylchitosan and folic acid were covalently modified on the surface of SPIO-NPs successfully, TEM showed all synthesized SPIO-NPs were almost spherical or ellipsoidal. Their sizes were less then 20 nm, dynamic light scattering (DLS), Zeta-potential results demonstrate the intensity particle size distributions of FA-OCMCS-SPIO-NPs were (41.4±0.132)nm, Zeta potential were (-21.36±15)mV. The surface modification may lead to decrese of magnetisms Ferrozine assay and Prussian blue staining results showed FA-OCMCS-SPIO-NPs had good tumor targeting and the tumor targeting had good relations with the amount of FR on surface of tumor cells. CONCLUSION: FA-OCMCS-SPIO-NPs with strong superparamagnetic property, excellent stability, and good folate receptor targeting is successfully synthesized, which demonstrated the potential for tumor MRI diagnose and therapy.

BACKGROUND: Bone marrow mesenchymal stem cells (MSCs) have been widely accepted by medical investigators due to their advantages including easy obtaining, minimal invasion, with infinite proliferation and multi-differential potential, and without immunological rejection in the autologous transplantation. OBJECTIVE: The goal of this study is to isolate and purify rat bone marrow MSCs in vitro, so as to observe the effects of different concentrations of serum containing kidney-tonifying and blood-activating Chinese herbs on the in vitro proliferation of rat bone marrow MSCs.DESIGN: A randomized controlled animal experiment.SETTING: Hip Center, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine.MATERIALS: Forty healthy male SD rats of SPF grade, weighing 170 to 180 g, were provided by the Laboratory Animal Center, Guangzhou University of Traditional Chinese Medicine. The protocol was performed in accordance with ethics guidelines for the use and care of animals. The involved rats were divided into 4 groups by random digit table with 10 rats in each: normal control group, high-, middle-, and low-concentration groups. METHODS: This study was performed at the Laboratory Animal Center, Guangzhou University of Traditional Chinese Medicine between January and March 2005. Rat bone marrow MSCs were isolated and purified by Percoll density gradient centrifugation, and cultured in vitro to establish rat bone marrow MSCs culture system. Rats in the high-, middle-, and low-concentration groups were intragastrically administrated with 4.4, 2.2 and 1.1 g/kg serum containing kidney-tonifying and blood-activating Chinese herbs, which equaled to 20, 10 and 5 times of adult dosage, respectively. Rats in the normal control group were intragastrically administrated with purified water for 1 week. One hour after the last administration, 6 mL blood was taken from abdominal aorta of each rat under the aseptic condition. Then, it was centrifuged at 2 000 r/min for 15 minutes, and meanwhile serum was collected. 10% rat serum containing kidney-tonifying and blood-activating Chinese herbs was added to the medium in the high-, middle-, and low-concentration groups, while 10% fetal bovine serum was added in the normal control group. MAIN OUTCOME MEASURES: ① MSCs growth status; ② MSCs morphology was observed by HE staining and Giemsa's staining; ③ MSCs antigen expression was detected by an immunocytochemical method; ④ Effects of different concentrations of serum containing kidney-tonifying and blood-activating Chinese herbs on MSCs growth.RESULTS: ①The primarily cultured bone marrow MSCs began to adhere to the wall 24 hours later and 80% of them reached the confluence 7 days later. ② MSCs took appearance in long shuttle shape or polygon. These cells were little. Nuclei were located in the middle part of cells or a little deviation. The ratio of nucleus to cytoplasm was a little high. ③CD44 expression was found in the cytoplasm of mononuclear cells, and colored blue. Partial MSCs expressed c-Kit. Their cytomorphology and phenotypic expression have the characteristics of MSCs. ④Three days after serum containing kidney-tonifying and blood-activating Chinese herbal medicine being added to high-, middle-, and low-concentration groups, the number of bone marrow MSCs was dose-dependently increased as compared with that in the normal control group. CONCLUSION: Serum containing kidney-tonifying and blood-activating Chinese herbs promotes the in vitro proliferation of bone marrow MSCs.

OBJECTIVE:To establish a method for simultaneous determination of lysophosphatidyl choline(LPC)and lysophos-phatidyl ethanolamine(LPE)in Nimodipine fat emulsion. METHODS:HPLC was performed on the column of Lichrosher Diol with detector of evaporative light scattering detector with mobile phase A of heptane- isopropyl alcohol solution(43∶57,V/V),mobile phase B n-heptane-isopropyl alcohol-water(29.5∶59∶11.5,V/V/V)(gradient elution)at a flow rate of 1.5 ml/min,column tempera-ture was 40℃,and the injection volume was 20 μl. RESULTS:The linear range was 0.020 0-0.400 0 mg/ml for LPC(r=0.999 0)and 0.010 0-0.200 0 mg/ml for LPE(r=0.999 6),and the logarithm value of concentration and peak area showed good linear relationship;the limit of quantitation was 0.013 4 mg/ml for LPC and 0.013 0 mg/ml for LPE;the limit of detection was 0.007 8 mg/ml for LPC and 0.007 6 mg/ml for LPE;RSDs of precision,stability and reproducibility tests were lower than 2%;recoveries were 95.96%-100.63%(RSD=1.83%,n=9)and 99.22%-101.76%(RSD=0.80%,n=9). CONCLUSIONS:The method is simple,and can be used for the determination of related substance in Nimodipine fat emulsion.

Purpose: To evaluate the efficacy and adverse effects of letrozole for postmenopausal breast cancer patients with bone raetastases. Methods: Thity-six breast cancer patients with bone metstases received 2. 5 mg tablet letrozole every day. for at least two months. Results: In the 36 patients who were evaluable for efficacy and toxicity, the complete response rate (CR) , partial response rate ( PR) , disease stabilization rate ( SD) and progressive disease rate ( PD) were respectively 5.5% , 22. 2% , 55. 5% and 16. 6% . The clinical benefit rate ( CR + PR + SD ≥ 6 months ) was 58. 3% (21/36) with 11 patients (30. 5%) having SD for at least 6 months . Conclusions: Letrozole is a well tolerated agent with reasonable efficacy but low toxicity for postmenopausal breast cancer patients with bone metastases.

Aim To investigate the effects of Jar-TTA in dual inhibition of glycolysis/oxidative phosphoryla-tion in human esophageal cancer cells and explore the related molecular mechanism. Methods The effect of Jar-TTA on the esophageal cancer cell EC 109 and KYSE-150 viability was examined using MTT assay. The effect of Jar-TTA in apoptosis morphology and mitochondrial membrane potential ( MMP) was observed by a fluorescence microscopy. The apoptosis of cell lines treated with Jar-TTA, the quantitative analysis of MMP falling, as well as the glucose uptake was ana-lyzed by flow cytometry. The mitochondrial OXPHOS and glycolysis of EC 109 cells in response to Jar-TTA were analyzed using a Seahorse XFp extracellular flux analyzer by real-time measurements of the oxygen consumption rate (OCR, indicative of mitochondrial OXPHOS) and extracellular acidification rate(ECAR, indicative of glycolysis). The expression of the proteins related with glycolysis were detected by Western blot. Results Jar-TTA caused strong antiproliferation in EC 109 and KYSE-150 cells in a concentration-dependent manner. 2 , 4 and 8 jimol • L"1 Jar-TTA treat-ments of EC 109 cells for 24 h resulted in a significant increase of early apoptosis population up to (27. 9 ± 6. 1)%, (71.1 ±9.3)% and (65. 0 ±9.5)%, respectively , compared to control treated cells (5. 6 ± 3.2)%. The mitochondrial OXPHOS and glycolysis were significantly inhibited in EC 109 incubated by 4 and 8 p,mol • L"1 Jar-TTA for 2 h. In addition, Jar-TTA induced the drop of MiMP. Furthermore, the glucose uptake and the expression of GLUT4 and LDHA were distinctly inhibited in EC 109 treated by Jar-TTA. Conclusions Jar-TTA induces apoptosis of human e-sophageal cancer cells through dual inhibition of glycolysis and oxidative phosphorylation, which is related with the drop of MMP collapse, the decrease of glucose uptake and the down-regulation of GLUT4 and LDHA in EC 109 treated by Jar-TTA.