Objective To study the level of serum gangliosides ( GM1 and GM3) in patients with gastric cancer and its clinical significance. Methods The ELISA (Enzyme-linked Immunosorbnent Assay, ELISA) method was used to detect GM1 and GM3 content in 40 patients with gastric cancer, and healthy controls. The results were analyzed with statistic software. Results The levels of serum GLS of gastric cancer group were significantly higher than that in healthy group and those in healthy subjects [(815.53±75.56)ng/ml vs (88. 88±32. 73)ng/ml;(765. 92 ±61.09)ng/ml vs (28.03±9.64) ng/ml, P <0.01 ] , patients with gastric cancer after chemotherapy and surgery group, and serum GLS was different between the healthy group and those in healthy subjects, patients with liver cancer after chemotherapy and surgery group. There was positive correlation between GM1 and GM3( r =0. 24, P <0.05).Conclusion Serum GLS of the patients with gastric cancer increased remarkably. Combined detection of serum gangliosides content in gastric cancer will be helpful to diagnosis of gastric cancer,disease progress prediction,and relapse prediction of this disease.

Objective To compare the effects of nasogastric tube and spiral nasointestinal tube on patients with severe brain injury. Methods Pa?tients receiving enteral nutrition with spiral nasointestinal tube or nasogastric tube were collected and investigated to evaluate the two schemes of en?teral nutrition from aspects of coma score,nutrition improvement,and catheter complications and so on. Results Detection of levels of total protein and prealbumin were conducted for all patients at 7 and 15 days after intubation. Each index was higher in the spiral nasointestinal tube group than in the nasogastric tube group. The reflux and aspiration rate was lower in the spiral nasointestinal tube group than in the nasogastric tube group. The dif?ferences were significant(P<0.05). Conclusion Using spiral nasointestinal tube to give enteral nutrition in patients with severe brain injury can improve the nutritional status,reduce complications,which is more contributory to the recovery.

0.10). Conclusion: Donepezil is effective in treating the cognition of AD and some of the mixed dementia, but it has little effect on VD.

Objective To observe the effect of transforming growth factor β1 (TGF-β1) on thyroid peroxidase activity and the expression of mRNA in primary porcine thyrocytes, and approach its possible mechanism. Methods In vitro cultured porcine thyrocytes were divided into 0 μg/L(control group), 2, 5, and 10 μg TGF-β1/L groups.After cultured for 72 h, the cell survival rate was measured with methyl thiazolyl tetrazolium (MTT) assay and the thyroid peroxidase (TPO) activity was measured by guaiacol method. The expression of TPO mRNA was determined cell survival rates of 2, 5, 10 μg/L groups(85.26%, 75.14% and 63.21%) were significantly lower(all P < 0.05 ).significantly decreased as compared with the control group [(2.143 ± 0.102), all P < 0.05)], and the TPO of TGF-β1, the lower the expression of TPO mRNA [(0.875 ± 0.078), (0.466 ± 0.044), (0.273 ± 0.007)] compared with the control group[(1.419 ± 0.148), all P < 0.05)]. Conclusions The inhibiting effect of TGF-β1 on primary cultured porcine thyrocytes may be related to its mechanism of inhibiting TPO activity and reduced mRNA expression.

The outbreaks of severe acute respiratory syndrome (SARS) in February 2003 in Guangdong, China, middle east respiratory syndrome (MERS) in September2012 in Kingdom of Saudi Arabia, and the current COVID-19 pandemics in December 2019 in Wuhan, China, are all caused by coronaviruses, and patients primarily died of acute respiratory distress syndrome (ARDS). Compared with more than 5 years of wreaking havoc from MERS-CoV and Ebor, China successfully contains the SARS-CoV within one year, which shows her advantages in political governance controlling such pandemics. Many coronaviruses have been separated and their molecular structures analyzed. However, there is no specific anti-coronavirus drug developed in the world since the outbreaks. The problems come from not only pharmaceutical technology per se that must treat both coronaviruses and their life-threatening ARDS, but also the small size of patients who could immune against the coronaviruses after infections resulting in pharmaceutical reluctance to invest in the area. Facing both the pharmaceutical and social-economic bottlenecks, here, we summarized the current development of anti-coronavirus drugs, and proposed the strategies of repurposing existing drugs and preparing their pharmacological combinations to fight the viruses including COVID-19 based on a well-understanding of how the coronaviruses enter the host and damage our respiratory system.

Objective: To analyze the clinical characteristics of young patients with acute myocardial infarction (AMI), discuss the key points of health education in young patients with AMI, enhance the understanding of patients, and improve the prognosis of AMI in the young patients. Methods: hTe patients were chosen in XiangyaHospital from September 2012 to September 2013. We consulted the medical records, analyzed the clinical characteristics and results of coronary angiogram in young patients (age≤45), and compared with old patients (age≥60). Results: There were 69 young patients with AMI, about 14.2% of all the patients with AMI. Of the 69 young patients, 59 were male (85.5%) and 10 were female (14.5%). Compared with the old patients, the percentages of smoking, drinking, hyperlipidemia and overweight were much higher;the percentages of hypertension and diabetes were much lower in young patients. The coronary angiogram showed that the constituent ratios of insigniifcant disease and single-vessel disease inthe young patients were higher than those in the old patients; the constituent ratios of double-vessel disease and triple-vessel disease in the young patients were lower than those in the old patients. Conclusion: The clinical characteristics of young patients withAMI are different from the old patients.Health education should be conducted in the youth, and new diet and lifestyle should be advocated.

Objective To explore the technique of auxiliary partial orthotopic liver transplantation model in C57BL/6 mice.Method The donor portal vein and hepatic vein were anastomosed with Cuff and suture techniques respectively.The donor bile duct was implanted into recipient duodenum.Result The operation time of harvesting donor's liver and anhepatic phase and recipient was (30 ± 3),(6-± 1) and (58 ± 5) min respectively.The model success rate was 96％,and the 4-week survival rate was 88％.Conclusion The animal model was stable with high success-rate and can be used for the study of auxiliary partial orthotopic liver transplantation.

Objective: To investigate the value of double source CT(DSCT)in the diagnosis of myocardial bridge(MB)and analyze the correlation of MB-associated coronary atherosclerotic plaque with age.Methods: A total of 417 patients suspected of coronary artery disease(CAD)were divided into a young group(n=137,30-44 yrs),a middle-aged group(n=197,45-59 yrs) and an old group(n=83,60-84 yrs),subjected to DSCT coronary angiography,and analyzed for the differences in the incidence of MB and coronary atherosclerosis.Results: Altogether 76 cases(18.2%) were diagnosed as MB,10(13.2%) in the young,36(47.4%) in the middle-aged and 30(39.5%) in the old group.Of the MB patients,41(53.9%) were complicated with coronary atherosclerotic plaque,2(20.0%) in the young,17(47.2%) in the middle-aged 22(73.3%) in the old group.There were significant statistical differences in the incidence and the nature of coronary atherosclerotic plaque among the 3 groups(P

Objective To investigate the damage mechanism of fluetuant high glucose on the INS-1 cells (pancreatic β-cell lines).Methods The cells were divided into five groups:the control groups (A group:5.5 mmol/L of glucose),the continuing high glucose group (B group:16.7 mmoL/L of glucose),the fluctuant glucose group ( C group:16.7 mmol/L of glucose for cultivation for 2 h,then the concentration changed to 5.5 mmol/L for cultivation for 3 h,which was repeated 3 times per day;the ceils were kept in the medium containing 5.5 mmol/L of glucose during night time for 9 h),the continuing high glucose plus NAC ( 1.0 mmo/L) group ( D group),the fluctuant glucose plus NAC group ( E group).The intracellular reactive oxygen species (ROS) was observed by the flow cytometry.The activity of glucose-6-phosphate dehydrogenase (G6PD) was estimated by the tetrazolium linked cytochemical method.Results 72 h after intervention,the levels of ROSwere 37.77±2.31,86.97±7.97,124.27±10.04,60.92±2.61 and 51.47±3.36,respectively,in A～E group;the activities of G6PD were 1.25±0.03,1.09±0.02,1.03±0.01,1.12±0.02 and 1.21±0.01,respectively;the levels of NADPH were (0.123±0.003) mmol/mg prot,(0.112±0.004) mmoL/mg prot,(0.099±0.002 ) mmol/mg prot,( 0.116±0.005 ) mmol/mg prot and ( 0.120±0.002) mmol/mg prot,respectively.The level of ROS in the cells of the fluctuant glucose group were significantly higher than that in the continuing high glucose group ( P ＜ 0.01 ).The G6PD activity and NADPH was significantly lower in fluctuant high glucose group than those in the continuing high glucose group (P ＜0.01 ).NAC co-cultivation decreased the extent of cell's change.Conclusions Exposure of INS-1 to high glucose lead to increased oxidative stress, possible mechanism included decreased G6PD activity and subsequent imbalance between oxidation and reduction.

Occupational Diseases ; prevention & control ; Occupational Health Services ; Public Health