OBJECTIVE:To study the protective effect of Yulangsan polysaccharide(YLSPS) on acute alcoholic hepatic injury in mice.METHODS:50% alcohol at a dose of 10 mL?kg-1 was administered (ig) to mice to establish acute alcoholic hepatic injury model.The activities of serum transaminase and superoxide dismutase(SOD) and the triglyeride(TGL) level were determined and a pathohistological study was performed. RESULTS:The activity of serum transaminase and the content of triglyceride in mice were significantly down-regulated by different doses of YLSPS,but the activity of superoxide dismutase in YLSPS-treated groups was significantly up-regulated and the number of fat droplets was reduced. Fatty degeneration in acute alcoholic hepatic injury model mice was significantly abated by high-dose and middle-dose YLSPS.CONCLUSION:The protective effect of YLSPS on alcohol-induced acute hepatic injury in mice was attributed to its action in lessening the effect of alcohol on lipometabolism.

Objective To evaluate the association of Smad2/3,Smad4 and P-Smad3 protein expressions in tissue with liver fibrosis in patients with chronic HBV infections.Methods Liver biopsy was performed to determine the liver fibrosis grades in 131 cases of chronic HBV infections.Immunohistochemistry and semiquantitative analysis were applied to detect the expression of Smad2/3,Smad4 and P-Smad3 proteins in liver tissues.Results Smad2/3,Smad4 and P-Smad3 were detected mainly in fibrous septum,portal areas,myofibroblasts,sinus and cytoplasm in the liver tissue.The expression of Smad2/3,Smad4 and P-Smad3 was increased with the development of fibrosis ( r =0.81,0.58and 0.68,P =0.000),and a strong positive correlation was observed among three proteins (r =0.75,0.87and 0.84,P =0.000).Conclusion The expression of Smad2/3,Smad4 and P-Smad3 is correlated with liver fibrosis in chronic HBV infection,which suggests that the up-regulation of Smad proteins may be involved in the progression of liver fibrosis.

Objective:To investigate the effects of establishment of a trauma center on the therapeutic efficacy for patients with severe multiple injuries.Methods:A retrospective study was conducted in the patients who had been treated at The Second Affiliated Hospital, University of South China for severe multiple injuries from October 2015 to September 2019. They were assigned into 2 groups. The study group included 102 patients who had been treated after establishment of our trauma center (from October 2017 to September 2019) while the control group 126 patients who had been treated before establishment of our trauma center (from October 2015 to September 2017). The 2 groups were compared in terms of time for emergency treatment (from admission to emergency surgery or ICU), ICU stay, hospital stay, total medical costs and mortality.Results:There was a significant difference between the 2 groups in time for emergency treatment [51 (47, 57) min for the study group versus 97 (87, 107) min for the control group] ( P<0.05). There were no significant differences between the 2 groups in ICU stay [4 (1.8, 9.3) d versus 4 (2.0, 10.0) d], hospital stay [25.5 (15.8, 39.0) d versus 21.5 (12.8, 41.5) d], or total medical costs [￥41,259.0 yuan (￥26,950 yuan, ￥81,599 yuan)] ( P>0.05). There was a significant difference between the 2 groups in mortality [12.7% (13/102) for the study group versus 24.6% (31/126) for the control group] ( P<0.05). Conclusion:Establishment of a trauma center can effectively shorten time for emergency treatment, improve treatment efficacy and reduce mortality for patients with severe multiple injuries.

The purpose of this study was to determine whether the Ca2+ signaling pathway is involved in the ability of osteoprotegerin (OPG) to inhibit osteoclast differentiation and maturation. RAW264.7 cells were incubated with macrophage colony-stimulating factor (M-CSF) + receptor activator of nuclear factor-kappaB ligand (RANKL) to stimulate osteoclastogenesis and then treated with different concentrations of OPG, an inhibitor of osteoclast differentiation. The intracellular Ca2+ concentration [Ca2+]i and phosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) in the different treatment groups were measured by flow cytometry and Western blotting, respectively. The results confirmed that M-CSF + RANKL significantly increased [Ca2+]i and CaMKII phosphorylation in osteoclasts (p < 0.01), and that these effects were subsequently decreased by OPG treatment. Exposure to specific inhibitors of the Ca2+ signaling pathway revealed that these changes varied between the different OPG treatment groups. Findings from the present study indicated that the Ca2+ signaling pathway is involved in both the regulation of osteoclastogenesis as well as inhibition of osteoclast differentiation and activation by OPG.
Animals ; Calcium/*metabolism ; *Calcium Signaling ; *Cell Differentiation/drug effects ; Cell Line ; Cell Survival/drug effects ; Gene Expression Regulation/drug effects ; Macrophage Colony-Stimulating Factor/metabolism ; Mice ; Osteoclasts/*cytology/*drug effects/*metabolism ; Osteoprotegerin/*pharmacology ; RANK Ligand/metabolism

Objective:To investigate the role of pleiotrophin (PTN) gene in carcino genesis using cDNA microarray and in situ hybridization. Methods:The expression of PTN gene in 5 cases of glioma, 10 laryngeal squamous cell carcinoma, 6 cases of hepatocarcinoma, and normal controls were detected by BioDoor 4096 type cDNA microarray and in situ hybridization. Results: The expression of PTN gene in carcinoma samples were significantly higher than in normal controls by cDNA microarray, the results was the same as by in situ hybridization. Conclusion: cDNA microarray is an effective technique in analysis of functional study of associated genes in carcinoma. High expression of PTN gene might be correlated with mechanism of multiple carcinoma. [

Objective To study the protective effect of aminophosphate on peripheral neurotoxicity in patients with gastrointestinal cancer undergoing chemotherapy.Methods Eighty patients receiving mFOLFOX6 regimen chemotherapy in the Eighth Affiliated Hospital of Sun Yat-sen University from June 2015 to February 2018 were selected as the study subjects.They were divided into study group and control group according to random number table method.The control group was given mFOLFOX6 regimen for chemotherapy,while the study group was given intravenous infusion of amphostatin before using mFOLFOX6 regimen for chemotherapy.The occurrence of peripheral neurotoxicity,motor nerve conduction velocity (MSV),sensory nerve conduction velocity (SCV) levels of median nerve and peroneal nerve before and after chemotherapy,short-term efficacy and blood toxicity were compared between the two groups.Results The total incidence of peripheral neurotoxicity was 17.50％ (7/40) in the study group and 82.50％ (33/40) in the control group,and the difference was statistically significant (x2 =33.800;P =0.000).The SCV levels of median nerve and peroneal nerve in the study group after chemotherapy was (53.68±3.02) m/s,(54.96 ±3.01) m/s,and those in the control group were(45.17±3.07) m/s、(44.97±3.03) m/s,and the difference was statistically significant (t =12.498,14.794;P =0.000,0.000).There was no significant difference in the total effective rate (87.50％,35/40) between the study group and the control group(90.00％,36/40) (x2 =0.125;P =0.723).The total incidence of hematotoxicity was 42.50％ (17/40) in the study group and 77.50％ (31/40) in the control group,and the difference was statistically significant(x2 =10.208;P=0.000).Conclusion Amfostine has a better preventive effect on peripheral neurotoxicity incancer patients undergoing chemotherapy,which is conducive to reducing the risk of hematotoxicity.which is worthy of clinical application.

Objective:To explore the effect of modified Simiao Yong'an Decoction combined with conventional western medicine on lower limb hemodynamics in patients with low-risk diabetes foot (DF).Methods:This retrospective cohort study included 70 patients with infectious diabetic foot, between January 2015 and May 2019, and they were divided into control group and study group, with 35 in each group. The control group was treated with conventional western medicine, while the study group was treated with modified Simiao Yong'an Decoction on the basis of the control group. Both groups were treated for 4 weeks and followed up for 1 year. The levels of basic fibroblast growth factor (bFGF) and VEGF were detected by ELISA, the levels of blood viscosity, fibrinogen and HbAlc were detected by automatic hemorheological analyzer, the dorsal artery of foot was detected by color Doppler ultrasound, the diameter and blood flow velocity of dorsal artery of foot were recorded, and the conduction velocity of sural nerve and common peroneal nerve were detected by electromyography for recurrence rate calculation. And the clinical response rates were evaluated.Results:The total clinical response rate was 94.3% (33/35) in the study group and 77.1% (27/35) in the control group, and there was significant difference between the two groups ( χ2=4.20, P=0.040). After treatment, the bFGF [(177.15±7.96)ng/L vs. (158.87±7.21)ng/L, t=10.00], VEGF[(53.77±4.15)ng/L vs. (45.44±4.92)ng/L, t=7.66] levels in the study group were significantly higher than those in the control group ( P<0.01). After treatment, the whole blood viscosity [(3.84±0.86)mPa?s vs. (4.56±0.99)mPa?s, t=3.25], fibrinogen [(3.59±0.78) g/L vs.(4.23±0.97)g/L, t=3.04]and HbAlc[(9.61±1.31)% vs. (10.85±1.82)%, t=3.27] levels in the study group were significantly lower than those in the control group ( P<0.01). After treatment, the sural nerve conduction velocity [(39.42±5.11)m/s vs. (34.22±4.52)m/s, t=4.51], common peroneal nerve conduction velocity [(40.94±4.22)m/s vs. (35.52±3.72)m/s, t=5.70], blood vessel diameter [(2.21±0.60)mm vs. (1.92±0.52)mm, t=2.16], while the blood flow velocity [(55.89±5.84)cm/s vs. (52.95±5.85)cm/s, t=2.10] in the study group were significantly higher than those in the control group ( P<0.05). During the follow-up, the recurrence rate was 21.21% (7/33) in the study group and 29.63% (8/27) in the control group. with out statistical significance between the two groups ( χ2=0.20, P=0.653). Conclusion:Modified Simiao Yong'an Decoction combined with conventional western medicine can improve lower limb blood circulation and nerve conduction velocity of low-risk DF patients, promote rehabilitation and reduce recurrence.

Objective: Under the intervention of modern holistic medical model, the subjective feelings and objective effects of parents and children in circumcision were studied in children aged 3-6 years. Methods: A prospective study was conducted to select 2012 children aged 3 to 6 years who underwent circumcision at the First Affiliated Hospital of Kunming Medical University from August 2013 to May 2017. The patients were divided into control group and experimental group by completely randomized grouping, there were 1 006 cases in each group. The children in the control group were treated with a single biomedical model, which was completed according to the conventional flow-type operation. The children in the experimental group adopted the modern holistic medical model, and the full modern holistic medical model intervention was performed before, during and after the operation. The medical treatment process highlighted the overall humanistic care for the children. The age of the control group was (4.19±1.75) years old, and the age of the children in the experimental group was (4.26±1.68) years old. The operation time, the degree of surgical pain [with the pain visual analogue scale (VAS)], the postoperative complications (including postoperative hemorrhage, penile edema, infection, wound rupture), wound healing time, surgery satisfaction rate and fear level of children were compared between the two groups. Measurement data were expressed as mean±standard deviation (Mean±SD), t-test was used for comparison between groups; Chi-square test was used to compare the count data. Results: In the control group, the operation time was (9.26±1.87) min, the surgical pain VAS was (2.59±0.72), postoperative bleeding was 38 (3.8%), severe penile edema was 78 (7.8%), and infection was 12 (1.2%), wound rupture was 32 cases (3.2%), the wound healing time was (20.4±2.56) d, and the surgical satisfaction rate was 67.4%. In the experimental group, the operation time of was (6.15±1.23) min, the surgical pain VAS was (1.71±0.54), postoperative bleeding was 6 cases (0.6%), severe penile edema was 12 cases (1.2%), and infection was 8 cases (0.8%), wound rupture was 2 cases (0.2%), the healing time was (15.2±3.16) d, and the operation satisfaction rate was 98.8%. The operation time, surgical pain VAS, postoperative bleeding, severe penile edema, wound splitting rate, healing time and surgical satisfaction rate were statistically significant (P<0.05), and there was no statistical difference in wound infection rate between the two groups (P>0.05). The fear level of children in the experimental group was superior to the control group at levels 0, 1, 2 and 3, the difference was statistically significant (P<0.05). Conclusions Under the intervention of modern holistic medical model, the child′s operation process is smooth, the children and parents have good subjective feelings, no obvious fear, good compliance, high satisfaction, good objective clinical effect, and positively improve the relationship between doctors and patients. The society has won a good reputation and deserves to be promoted clinically.

Objective: To identify the etiology and source of infection in a diarrhea outbreak in Yunnan in May 2017 and to provide the evidence for formulating prevention and control measures. Methods: Epidemiological investigation was carried out on the epidemic situation of diarrhea in the village of Lvchun County in Yunnan Province, the field sampling, laboratory testing and data analysis were also performed. Results: Among the 44 patients, 11 of the 13 samples were positive for rotavirus nucleic acid in group A, and the positive rate was 84.62%. The survey showed that the water supply pipe was damaged and polluted by human and livestock manure and domestic sewage. The trend of the damaged water pipe was basically the same as the case distribution, and the rainfall was significantly related to the number of the disease. Conclusions This event was an outbreak of diarrhea caused by group A rotavirus. The direct pollution of drinking water caused by rainfall may be the risk factor of this outbreak. The health management of rural drinking water should be strengthened and the health knowledge and education of preventing intestinal infectious diseases should be promoted.