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Objective:To investigate the changes and to establish a reference interval of bile acid profile of healthy pregnant women in the second and third trimesters of pregnancy in our hospital.Methods:A total of 298 healthy singleton pregnant women who underwent prenatal examination in the Department of Obstetrics of Zhejiang Provincial People′s Hospital from July 2019 to August 2020 were enrolled in this study. The overnight fasting serum samples were collected from all subjects during their second and third trimesters of pregnancy. The concentrations of 15 bile acids(cholic acid, chenodeoxycholic acid, deoxycholic acid, ursodeoxycholic acid, lithocholic acid and their glycine-and taurine-conjugated types)were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS). The characteristics of changes were analyzed and the reference intervals were determined for the second and third trimesters. The concentrations of 15 bile acids and total bile acids were skewed-distributed, and 99 percentiles (P 99) were used to represent the unilateral upper limit of the reference interval. Results:There was significant difference in the serum levels of glycine cholic acid (GCA), taurocholic acid (TCA), glycine ursodeoxycholic acid (GUDCA) and lithocholic acid (LCA) between the second and third trimesters healthy pregnant females ( P<0.05). For other 11 bile acids, there was no significant difference. The levels of total bile acids, primary or secondary bile acids, free or conjugated bile acids (glycine-bound and taurine-bound bile acids) were stable with gestation. Conclusion:Primary, secondary or free, and conjugated bile acids in healthy pregnant women remained stable at T 2 and T 3, with significant differences in only a few subtypes of bile acids. While the correlation between glycine-bound and taurine-bound bile acids showed a weakening trend at T 3 ( P<0.05). It is necessary to establish reference intervals of bile acids for healthy pregnant women in this area. This study provided data support for future research on related diseases during pregnancy.
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Objective To analyze the effectiveness and safety of chest pain centers in the management of patients with acute chest pain.Methods The clinical data of 315 patients with acute chest pain who presented to the Affiliated Hospital of Chengdu University of Traditional Chinese Medicine from January 2012 to December 2016 were retrospectively analyzed.The chest pain center of our hospital was established in December 2014.A total of 123 patients with acute chest pain who were treated before the establishment of the chest pain were included as the control group.From December 2014 to December 2016,192 patients with chest pain were admitted and included as the observation group.The percentages of acute myocardial infarction and patients receiving emergency intervention(percutaneous coronary intervention,PCI),the door-to-balloon(D to B)time,average length of hospital stay and rates adverse events between the two groups were compared.Results The percentages of acute myocardial infarction among patients with acute chest pain was 75.6％in the control group and 82.3％in the observation group(P=0.027).The emergency PCI rate was 83.9％in the control group and 92.4％in the observation group(P=0.001).The door-to-balloon time was(64.12±34.76)min in the control group and(58.08±16.26)min in the observation group(P=0.025).The average length of hospital stay was(10.09±4.03)days for the control group,and(7.41±3.78)days for the observation group(P=0.025).There was no statistical difference in the incidence of recurrent myocardial infarction between the 2 groups(P＞0.05).The rates of sudden cardiac death,heart failure,cardiogenic shock and adverse events were all significantly higher in the control group(all P＜0.05).Conclusions The establishment of chest pain center provides safer and more effective treatment to patients with acute chest pain.
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Objective To investigate the feasibility and clinical value of medical history and clinical manifestation-based protocol(MHCMP) for the diagnosis of spontaneous coronary artery dissection(SCAD)using intravascular ultrasound (IVUS).Methods Based on the MHCMP designed in our centre,intraoperative sequential analysis was performed in patients with acute coronary syndrom and clinical tip of SCAD,SCAD and its classification were defined according to the result of IVUS.Results Of the 37 patients admitted with ACS at the Cardiology Service,29 patients had SCAD as the cause(78.4 ％).All the patients underwent coronary angiography and IVUS,of which 9 patiens were type I (24.3 ％),15 patients were type Ⅱ (40.5％) and 5 patients were type Ⅲ (13.5％).The left anterior descending artery was the most frequently affected (16 patients),followed by the the right coronary artery (7 patients),while 5 patients had dissection of the circumflex artery and 1 patient had dissection of the left main coronary artery.Type I (evident arterial wall stain):this was the pathognomonic angiographic appearance of SCAD with contrast dye staining of the arterial wall with multiple radiolucent lumens.Type Ⅱ (diffuse stenosis of varying severity):this angiographic appearance was not well appreciated and was often missed or misdiagnosed.SCAD commonly involved the mid to distal segments of coronary arteries,and could be so extensive that it reached the distal tip.There was an appreciable (often subtle) abrupt change in arterial caliber,with demarcation from normal diameter to diffuse narrowing.This diffuse and usually smooth narrowing could vary in severity from inconspicuous mild stenosis to complete occlusion.Type Ⅲ (mimic atherosclerosis):this appearance was the most challenging to differentiate from atherosclerosis and most likely to be misdiagnosed,while IVUS was helpful for the differential diagnosis.Conclusions MHCMP is able to screen out all kinds of SCAD and guide the treatment decisions making.
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Objective To study the effects of Glycyrrhiza polysaccharide (GP) on immune function in mice. Methods Polysacchayide was extracted from Glycyrrhiza uralensis by water-extraction-alcohol-precipitation method. Ovalbumin was injected to mice as antigens. The mice were randomly divided into four group:low (50 mg/kg), middle (100 mg/kg), high (200 mg/kg) dosage group of GP and normal control group, 12 mice in each group. Four groups were given GP and NS orally for seven days. After the secondary immunization, the level of antibody and the concentration of serum IFN-? were determined. Results The levels of antibodies and cytokines in middle and low dosage group of GP were all significantly higher than those of control group. Conclusion GP could enhance the immune function of mice.