Objective To analyze the clinical efficacy of recombinant human granulocyte macrophage colony stimulating factor gel in the treatment of burn wounds.Methods 80 cases of burn patients in our hospital from February 2016 to February 2017 received treatment, were randomly divided into control group and observation group, 40 cases in each group, the control group given routine treatment, and the observation group was treated with recombinant human granulocyte macrophage colony stimulating factor gel on the basis of the treatment of the control group.The clinical effects of the two groups were compared and analyzed, including the healing time, the total effective rate of wound healing, the healing rate of the wound, and the related adverse reactions.Results The patients in, the healing time, total wound healing efficiency,and wound healing rate of the control group were significantly better than those of the control group(P<0.05), and no adverse reactions occurred in the two groups.Conclusion Burns were treated with recombinant human granulocyte macrophage colony stimulating factor gel treatment can effectively improve the treatment of patients with total efficiency, shorten the healing time, and can improve the healing rate, the treatment has a very important meaning and value, worthy of promotion and application in clinical widely.

Objective To investigate the effects of breviscapine on the renal structure, function and PKC-?mRNA and its protein expression in brain-dead BA-Ma mini pigs. Methods Fifteen BA-Ma mini pigs were randomly divided into 3 groups: brain-dead group (group A), breviscapine pretreatment group (group B), and control group (group C), 5 pigs in each group. The brain-dead models were established by increasing intracranial pressure in a modified, slow and intermittent way. At 3, 6, 12, 18 and 24 h after the initial brain death, serum BUN, Cr, TNF-?, IL-1?, and IL-6 were determined. At 3, 6, 12, and 24 h, the changes of renal tissues were observed by HE staining, and the expression of PKC-?mRNA and protein was detected by RT-PCR and immnohistochemistry respectively. The ultrastructural changes of hepatic cells were observed under electron microscopy. Results (1) At 3rd h after the initial brain death, IL-1?, IL-6, and TNF-?in group A and group B began to increase. Serum BUN and Cr in group A and group B began to increase at 12 th after brain death and were higher at each time point (P

The Montreux definition established in 2017 made it clear that the neonates can not be excluded from the diagnosis of acute respiratory distress syndrome (ARDS), which supported the urge of emphasizing the specificity and importance of neonatal ARDS (nARDS) in the past ten years in China. Neonatal idiopathic respiratory distress syndrome is caused primarily by insufficient pulmonary surfactant system, which pathologically and clinically presented as typical respiratory distress syndrome. While the causes of nARDS often coexisted with underlying conditions, and its pathological and clinical features are a superposition of both respiratory distress syndrome and underlying conditions. Therefore, superimposition is the key to understanding the etiology, pathology, diagnosis, and treatment of nARDS, which is crucial for optimizing the clinical practice of nARDS.

OBJECTIVE To clone the MSI-78 gene for the purpose of providing evidence for further studies in prokaryotic expression and activities of antimicrobial peptides. METHODS According to the amino acid sequences of MSI-78,the MSI-78 gene was designed favorable for the Escherichia coli codons. After EcoRⅠand PstⅠ disgestion,cohesive ends were added to both ends respectively and the MSI-78 gene was synthesized by chemical methods. Then,the MSI-78 gene was ligated with pUC-18,transformed into the E. coli DH5?. Through filtration of ? complementary screening,the positive recombinant was finally identified by enzyme digestion of ECORⅠand ECORⅠ/PstⅠ and by PCR. RESULTS The MSI-78 gene was ligated with pUC-18 and transformed into the E. coli DH5?. As a result,MSI-78 gene was cloned in E. coli DH5? successfully. CONCLUSIONS The cloning of the MSI-78 gene provides evidence for further studies of its prokaryotic expression and activities of antimicrobial peptides.

Aim To investigate the effects of Ang Ⅱ receptor antagonist irbesartan on the expressions of connective tissue growth factor(CTGF) and membrane-type 1 matrix metalloproteinase(MT1-MMP) in high glucose-cultured rat glomerular mesangial cells(GMCs).Methods High concentration glucose and irbesartan were used to stimulate the cultured rat GMCs in vitro.The mRNA and protein expressions of CTGF and MT1-MMP were detected with semi-quantitative RT-PCR and Western blot.The secreted collagen Ⅳ in the supernatants of the GMCs was detected by enzyme-linked immunoadsorbent assay(ELISA).Results Compared with control group,the expressions of CTGF were continuously increased in GMCs under high concentration glucose medium;otherwise the mRNA and protein levels of MT1-MMP in GMCs were decreased in a time-dependent manner at the same time.These changes were accompanied by increased secretion of collagen Ⅳ.Irbesartan could inhibit those changes induced by high glucose.Conclusions High glucosecould induce the expression of CTGF and inhibit the expression of MT1-MMP in GMCs.Irbesartan could inhibit the secretion of ECM in GMCs under high concentration glucose medium,partly by regulating the expressions of CTGF and MT1-MMP.

Objective To investigate the metabolic changes in free fatty acids in the livers of obese rats with type 2 diabetes.Methods Thirty male SD rats were randomly divided into control group(Con group) and diabetes mellitus group(DM group),with 15 in each group.Rats in Con group and DM group were fed with normal diet and high-fat diet,respectively.Eight weeks later,OGTT and ISI test were performed to identify insulin resistance.Then the insulin-resistant rats received intraperitoneal injection of low-dose streptozocin(STZ) to induce type 2 diabetes.After giving high-fat diet further for six more weeks,8 rats of each group were sacrificed and artery blood and liver sample were obtained for further analysis.The mRNA levels of diacylglycerol O-acyltransferase 1(DGAT1),carnitine palmitoyltransferaseⅠ(CPTⅠ),palmitoyl-CoA oxidase(ACOX1),D-bifunctional protein(DBP) and L-bifunctional protein(LBP),which were involved in fatty acids metabolism,were evaluated by RT-PCR.The protein level of DBP was evaluated by Western blotting Peroxisome fatty acids ?-oxidation was measured by spectrophotometry.Free fatty acids in blood and liver were determined by gas chromatography.Oil red staining was used to determine the fat accumulation in liver.Results The mRNA expressions of DGAT1,CPTⅠ,ACOX1 and LBP increased(P

Objective To study the effect and mechanism of increase in radio sensitivity of kidney cancer cells(GRC-1) induced by ?-elemenen in vitro. Methods GRC-1 cells were divided into 3 groups, blank group (added with 2 mL culture medium), emulsion group (added with 2 mL blank emulsion culture medium) and drug group (added with 2 mL 50 mg?L -1 ?-elemenen culture medium). After been cultivated for 24 hours, the cells were irradiated using 6MeV X-linear accelerator in different doses at the rate of 400cGy per minute. Number of cell clones was counted, and radiation-survival curve of GRC-1 cells was drawn. Flow cytometry (FCM) was used to measure cell cycle and apoptosis. Cells of climbing flake were dyed by immunocytochemical method, the gene expression of bcl-2 and PCNA was measured by imaging system. Results The cell cycle showed that the G 2M blocking caused by 50 mg?L -1 ?-elemenen was enhanced with time increase. It reached peak at 24 hours. FCM showed that the level of apoptosis increased with increase in drug dose and action time. The gene expression of bcl-2 was decreased by 20% in drug group than that in blank group, but there was no expression of PCNA in the two groups. Conclusion The radiosensitivity of GRC-1 cells can be enhanced by ?-elemenen. The mechanism of effect may be associated with the cell cycle blocking, inducing cell apoptosis and down-regulating expression of bcl-2 gene.

Animals ; Heart ; drug effects ; Hippophae ; Liver ; drug effects ; metabolism ; Male ; Myocardium ; metabolism ; Oxidative Stress ; Plant Oils ; pharmacology ; Rats ; Rats, Sprague-Dawley

BACKGROUND: The cel density is one of the factors involved in the state of cel differentiation, and the effect of cel density on transforming growth factor-β1-induced epithelial-mesenchymal transition of HaCaT cells is stil unclear. OBJECTIVE: To observe the effect of cel density on transforming growth factor-β1-induced epithelial-mesenchymal transition of HaCaT cells. METHODS: HaCaT cells was seeded in 6-wel plates at low density of 103/cm2 and high density of 105/cm2 then treated by 2 μg/L transforming growth factor-β1 for 48 hours, thereafter observed the changes in cel morphology. The transcription levels of epithelial cadherin, tight junction protein-1, vimentin, neuronal-cadherin were detected by real-time PCR, and expression levels of epithelial cadherin and vimentin were detected by Western blot. RESULTS AND CONCLUSION: Cel gap of HaCaT cells grew larger after treated with transforming growth factor-β1 for 48 hours, and cel morphology was long spindle rather than polygonal in low-density group, while in high-density group without obvious morphological changes. The real-time PCR showed that the transcriptions of epithelial cel marker epithelial cadherin and tight junction protein-1 were suppressed when compared with the control group (P < 0.05), and the decreasing deree in the high-density group was higher than that in the low-density group (P <0.05), mesenchymal cel marker neuronal-cadherin and vimentin were upregulated in the high-density group and the low-density group when compared with the control group (P < 0.05), and there were no significant differences between high-density group and low-density group. Western blot results verified the changes of neuronal-cadherin and vimentin expression level. These results suggest that the high seeding density can inhibit transforming growth factor-β1-induced epithelial-mesenchymal transition of HaCaT cells.

Objective To explore the effects of angled abutments on the anterior maxilla implant restoration. Methods We analyzed the biomechanical properties of implants of different sizes (Φ3.5 mm,4.0 mm and 4.5 mm in diameter;L11.5 mm and L13 mm in length)after connecting different angled abutments (0°,10°,20°,and 30°) using finite element method.Results The stresses and strains of loading parts of restorations increased and their distribution became more concentrated as the angle of abutment increased.Cortical bone of Φ3 .5 implants with smaller angle (10°or less)andΦ4.0 implants with abutments had the risk of overpassing the bone elastic threshold when the angle approached 30°.However,the cortical bone elastic deformation was within a safe range at all angles inΦ4.5 group.Conclusion We should consider the diameter of the implant when selecting angled abutments.The angled abutments are not suitable for small diameter implants.The bite force should be under control when needed. The larger angled abutments can be applied in the standard and major diameter implants and it is necessary to avoid occlusal overloading.