Acupuncture Points ; Administration, Cutaneous ; Adult ; Aged ; Drugs, Chinese Herbal ; administration & dosage ; Facial Paralysis ; drug therapy ; Female ; Humans ; Male ; Middle Aged ; Treatment Outcome ; Young Adult

This study is to investigate the effects of ceramide on GSTA1 expression in Caco-2 cells. After being exposed to ceramide for a fixed time, GSTA1 protein expression was detected by Western blotting analysis; GSTA1 mRNA expression was detected by real time PCR; dual luciferase assay was used to analyze GSTA1 transcriptional activity and GSTA1 activity was determined toward androstanedione (AD) as substrate. The data showed that ceramide can significantly induce the expression of protein and GSTA1 mRNA, and increase transcriptional activity and enzyme activity of GSTA1. The results demonstrated that ceramide may increase resistance to chemotherapeutics in Caco-2 cells by up-regulating the expression of GSTA1.

Aged ; Biomarkers ; blood ; Cobalt ; Female ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; diagnosis ; Myocardial Ischemia ; diagnosis ; Serum Albumin ; metabolism ; Spectrophotometry

Methods: Study participants were recruited from Shuguang East Hospital, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, and Shanghai Municipal Hospital of Traditional Chinese Medicine, affiliated with Shanghai University of Traditional Chinese Medicine, from April 15 to September 15, 2021. They were categorized into three groups: healthy controls (Group 1), CHD patients without a history of ischemic stroke (Group 2), and CHD patients with a history of ischemic stroke (Group 3). The wrist pulse signals of the study participants were non-invasively collected using a pulse diagnosis instrument. The linear time-domain features and nonlinear time-series multiscale entropy (MSE) features of the pulse signals were extracted using time-domain analysis and the MSE methods, which were subsequently compared between groups. Based on these extracted features, a recognition model was developed using a random forest (RF) algorithm. The classification performance of the models was evaluated using metrics, including accuracy, precision, recall, and F1-score derived from confusion matrix as well as the area under the receiver operating characteristics (ROC) curve (AUC). Results: A total of 189 participants were enrolled, with 63 in Group 1, 61 in Group 2, and 65 in Group 3. Compared with Group 1, Group 2 showed significant increases in pulse features H2/H1, H3/H1, W1, W2, and W2/T, and decreased in MSE1 – MSE7 (P < 0.05), while Group 3 showed significant increases in pulse features T5/T4, T, H1/T1, W1, W2, AS, and Ad, and decreased in MSE1 – MSE20 (P < 0.05). Compared with Group 2, Group 3 demonstrated notable increases in H1/T1 and As (P < 0.05). The RF model achieved precision of 80.00%, 61.54%, and 61.54%, recall of 74.29%, 60.00%, and 68.97%, F1-scores of 70.04%, 60.76%, and 65.04%, and AUC values of 0.92, 0.74, and 0.81 for Groups 1, 2, and 3, respectively. The overall accuracy was 67.69%, with micro-average AUC of 0.83 and macro-average AUC of 0.82. Conclusion Differences in pulse features reflect variations in arterial compliance, peripheral resistance, cardiac afterload, and pulse signal complexity among healthy individuals, CHD patients without a history of ischemic stroke, and those with such a history. The developed pulse-based recognition model holds the potential in distinguishing between these three groups, offering a novel diagnostic reference for clinical practice.

Aim To evaluate the effects of aspirin on the expression of inflammatory proteins induced by oxidized low-density lipoprotein(ox-LDL) in human vascular endothelial cells (HUVECs). Methods HUVECs were stimulated with different concentrations of ox-LDL. The expression of inflammatory proteins was detected by Western blot.Intracellular ROS generation was measured by flow cytometry using perexide-sensitive flurscent probe 2′, 7′-dichrofluorescein diacetate(DCFH-DA).Results ① Aspirin inhibited COX-2 expression induced by ox-LDL. Cells were preincubated with 2.5 mmol?L-1, 5 mmol?L-1 of aspirin or without any treatment for 30 min and then stimulated by 0.3 g?L-1 ox-LDL for 16 h, COX-2 expression was reduced by treating of aspirin.COX-2 expression was enhanced after the stimulation with ox-LDL, and aspirin inhibited the increasing.② Aspirin suppressed ICAM-1 expression induced by ox-LDL in HUVECs. ICAM-1 expression was increased by ox-LDL stimulation for 16 h, and aspirin significantly down-regulated the expression. Similar results were obtained by immunofluorescence.③ Aspirin partially reduced ROS production induced by ox-LDL in HUVECs. After stimulation with 0.3 g?L-1 ox-LDL for 16 h, the intracellular level of ROS was increased, however, aspirin failed to fully inhibit the phenomenon.Conclusion Nonsteroidal anti-inflammatory drugs (NSAID) aspirin significantly down-regulated the expression of COX-2 and ICAM-1 induced by ox-LDL.The results suggested that aspirin could reduce the inflammation responses mediated by ox-LDL on HUVECs in atherosclerosis.

Bacterial Infections ; drug therapy ; Child ; Drug Resistance, Bacterial ; Humans ; Microbial Sensitivity Tests ; beta-Lactamases ; biosynthesis

Objective: To compare the influence of nickel-chromium alloy and gold-platinum alloy porcelain-fused-to-metal ( PFM ) on ultramicrostructure of canine gingival tissues, to survey the biological effects after PFM full crown restoration, and to provide data for selection of PFM materials. Methods; The nickel-chromium alloy and gold-platinum alloy PFM full crowns were used to repair canines in 3 healthy dogs. The microstructure of canine gingival tissue was observed through light microscope and transmission electron microscope. Apoptosis of canine gingival cells was detected by TUNEL method. Results; Under light microscope, inflammatory cell infiltration and partial bleeding were seen in the nickel-chromium alloy PFM full crown repaired canine gingival tissues. Under transmission electron microscope, large amount of cell apoptosis and neuclear condensation were observed in these tissues,and apoptotic index was 58.63% ±11. 12%. While under light microscope, inflammatory cell infiltration and partial bleeding were not seen in the gold-platinum metal PFM full crown repaired canine gingival tissues. Under transmission electron microscope, only small amount of cell apoptosis was detected in these tissues,and apoptotic index was 26. 90% ± 17. 35%. Statistical significance was found in both nickel-chromium alloy group and gold-platinum metal group compared to control group. There was also statistical significance between nickel-chromium alloy group and gold-platinum metal group in cell apoptosis numbers (P <0. 05). Cell apoptosis number in nickel-chromium alloy group was much higher than that in gold-platinum metal group. Conclusion; The negtive effects on ultramicrostructure of gingival tissue using nickel-chromium alloy PFM are more evident than using gold-platinum metal. When select PFM to repair defect teeth, it is better to select the inactive gold-platinum metal PFM as base crown.

Objective To evaluate the antibacterial activity of Resveratrol(RES)against Staphylococcus aureus standard strains.Methods Minimal inhibitory concentrations was tested.Growth curve of RES were used to study.Results The MIC of Staphylococus were 0.256 mg/ml.RES inhibit growth of Staphylococal reference culture.Conclusion RES had strong antibacterial activity agains Staphylococal reference culture.

OBJECTIVE:To systematically review the efficacy and safety of salmeterol and fluticasone propionate aerosol in the treatment of AECOPD and provide evidence-based reference for the clinical treatment. METHODS:CJFD,Wanfang database, VIP,CBM,Cochrane Library,PubMed and EMBase were retrieved to collect the randomized controlled trial(RCT)of efficacy and safety of salmeterol and fluticasone propionate aerosol in the treatment of AECOPD. After information collection and quality evalua-tion,Meta-analysis was performed by using Rev Man 5.1 software. RESULTS:There were totally 17 RCTs,including 2 872 pa-tients. Results of Meta-analysis showed FEV1[SMD=0.47,95%CI(0.41,0.53),P<0.001],FEV1/FVC [SMD=1.08,95%CI(0.76, 1.39),P<0.001],FEV1 percentage of predicted value[SMD=0.83,95%CI(0.60,1.06),P<0.001] and incidence of adverse reac-tions [RR=1.38,95%CI(1.02,1.87),P=0.03] in test group were significantly higher than control group,with significant differenc-es. CONCLUSIONS:Salmeterol and fluticasone propionate aerosol has good efficacy in the treatment of AECOPD,can better im-prove patients’lung function and the safety needs to be improved. Due to the limit of research methodology,it remains to be fur-ther verified by large-sample and high-quality RCT.

AIM To prepare the microemulsions loaded with total flavonoids from Potentilla discolor Bunge and to evaluate the therapeutic effect on diabetic mice.METHODS Total flavonoids,the extract from P.discolor by 70％ ethanol,were made into microemulsions after purification with.macroporous resin.With types and amount of oil phase,emulsifier and co-emulsifier,and addition amount of total flavonoids as influencing factors,together with drug loading,encapsulation efficiency,particle size and Zeta potential as evaluation indices,the formulation was optimized by drawing pseudo-ternary phase diagram.By establishing diabetic mouse models induced by streptozotocin (STZ) and high fat diet,the obtained microemulsions' effects on fasting blood glucose,oral glucose tolerance (OGT),insulin,glycosylated serum protein (GSP),triglyceride (TG),total cholesterol (TC),low density lipoprotein (LDL),high density lipoprotein (HDL),superoxide dismutase (SOD) and malondialdehyde (MDA) in mice were investigated.RESULTS The optimal formulation was determined to be 400 mg for isopropyl myristate (oil phase) amount,400 mg for Cremophor RH 40 (emulsifier) amount,200 mg for polyethylene glycol 400 (coemulsifier) amount,and 80 mg for addition amount of total flavonoids.The spherical-like and uniformly-sized microemulsions shared average drug loading of (7.28 ± 0.12)％,encapsulation efficiency of (91.79 ± 1.02)％,particle size of (36.79 ±0.17) nm and Zeta potential of (-15.77 ±2.89) mV.They could significantly reduce fasting blood glucose level,promote insulin secretion,regulate blood lipid,increase SOD activity,and decrease MDA level in diabetic mice.CONCLUSION Once prepared into microemulsions,the total flavonoids from P.discolor demonstrate an obviously enhanced activity in reducing blood glucose.