1.Comparison of transthoracic contrast echocardiography and transesophageal contrast echocardiography for detecting right to left shunt in patients with petent foramen ovale
Yue, LI ; Ya-nan, ZHAI ; Li-qun, WEI ; Li, ZHANG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(11):916-921
Objective To compare the effect of transthoracic contrast echocardiography (cTTE) with transesophageal contrast echocardiography (cTEE) for detecting right to left shunt (RLS) in patients with patent foramen ovale (PFO). Methods The prospective study was conducted in 29 consecutive patients with PFO who suffered from cryptogenic stroke and/or migraine. Contrast echocardiography was performed in all 29 patients. The cTTE was performed using transducer with second harmonic imaging modality (transmitting frequency 1.7 MHz, receiving frequency 3.4 MHz). The cTEE was performed using transducer with frequency 7 MHz. Ten milliliter saline solution of contrast were rapidly administrated through an antecubital vein. According to whether microbubble (MB) appearing in left atrium after complete opaciifcation of right atrium within the ifrst 3 circles, the results were classiifed by a four-level semi-quantitative categorization:Level 1 (no PFO-RSL), no MB in left atrium; Level 2 (small PFO-RSL) 1-10 MBs; Level 3 (medium PFO-RSL) 10-30 MBs;Level 4 (large PFO-RSL)>30 MBs. Results The total detection rate of PFO-RSL was signiifcant different between cTTE and cTEE (86.2%vs 55.2%,χ2=5.711, P=0.017). In cTTE there were 4 cases at level 1, 1 case at level 2, 5 cases at level 3 and 19 cases at level 4. In cTEE there were 13 cases at leverl 1, 2 cases at level 2, 6 cases at level 3 and 7 cases at level 4. The comparison of semi-quantitative grading derived from cTTE and cTEE was also signiifcant different (Wilcoxon signed ranks test showed Z=-3.789, P=0.000). Conclusions The efifciency in detection of PFO-RLS with cTTE was better than with cTEE. Compared with cTEE, cTTE was easier in practice and brought less discomfort and complications to patients.
2.Primary liver paraganglioma: a case report.
Ping CHEN ; Ya-nan ZHAI ; Hong LIU ; Hao WANG ; Shun-lin GUO
Chinese Journal of Hepatology 2013;21(10):786-787
3.Simultaneous determination of four flavones in root and stem of Cudrania tricuspidata and C. cochinchinensis by HPLC-DAD.
Bo LI ; Mei WANG ; Ya-Nan TAN ; Miao-Miao TONG ; Yan-Jun ZHAI
China Journal of Chinese Materia Medica 2013;38(2):167-170
OBJECTIVETo establish a HPLC-DAD method for the determination of axifolin, naringenin, quercetin and kaempferol in Cudrania tricuspidata and C. cochinchinensis in order to provide a scientific reference for species identification and quality evaluation, by establishing.
METHODThe determination was performed by HPLC-DAD on an Agilent C18 column (4.6 mm x 150 mm, 5 microm) by gradient elution (0-15 min, 35%-50% A; 15-30 min, 50% - 65% A) using methanol (A) and 0.1% phosphoric acid (B) as the mobile phase. The flow rate was 1 mL x min(-1). The detection wavelength was 290 nm for taxifolin and naringenin, 365 nm for quercetin and kaempferol with column temperature at 30 degrees C.
RESULTThe content of axifolin and quercetin in the root of C. tricuspidata were remarkably higher than that in the root of C. cochinchinensis, and the content in stem of C. tricuspidata was also higher than that in the stem of C. cochinchinensis, the content of axifolin and quercetin was variable in different species. The content of naringenin and kaempferol in the root of C. cochinchinensis was visibly higher than that in the root of C. tricuspidata, and the content in the stems of the two herbs was similar, the content of naringenin and kaempferol was visibly variable in different medicinal parts of the herb, but similar between the two herbs.
CONCLUSIONThere's some difference of the content of the four ingredients in different medicinal parts and different herbs, so clinical use should not be confused.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Flavanones ; chemistry ; isolation & purification ; Flavones ; chemistry ; isolation & purification ; Kaempferols ; chemistry ; isolation & purification ; Methanol ; Moraceae ; chemistry ; Organ Specificity ; Phosphoric Acids ; Plant Roots ; chemistry ; Plant Stems ; chemistry ; Plants, Medicinal ; Quercetin ; analogs & derivatives ; chemistry ; isolation & purification ; Reproducibility of Results ; Species Specificity
4.Nursing of one patient under went thoracoabdominal surgery for recurrent pelvic intravenous leiomyoma involving right atrium
Yan YAN ; hua Yong ZHAI ; wei Chen LIU ; nan Ya MAN
Chinese Journal of Nursing 2017;52(9):1059-1061
To summarize the nursing experience on recurrent intravenous leiomyomatosis with right atrial invasion in one case undergoing thoracoabdominal joint surgery.The key points were muhidisciplinary consultation and collaboration,detailed personalized surgical program and reasonable arrangements.A comprehensive preoperative assessment and psychological counseling was carried out.In the process of operation nosocomial infection was strictly controlled.The patient underwent an 8-hour procedure with 1 000ml intraoperative blood loss and was in good recovery right now.
5.Changes of nitric oxide and endothelin serum level after carotid balloon denudation or stent assisted angioplasty: an experimental and clinical observation.
Jia-Chun LIU ; Da-Ming WANG ; Jiang-Nan QIAN ; Ya-Guo LI ; Li-Jun WANG ; Xue-Li JIANG ; Le-le ZHAI ; Jun LU ; Peng QI
Chinese Journal of Surgery 2009;47(6):423-426
OBJECTIVETo observe the changes of nitric oxide (NO) and endothelin (ET) serum level in the Guangxi BA-MA minipigs whose carotid arteries were injured by balloon denudation and in the patients with carotid stent assisted angioplasty.
METHODSTwelve Guangxi BA-MA minipigs were chosen. High fat/cholesterol feeding and endovascular balloon denudation were used to create a carotid artery atherosclerotic stenosis animal model. Blood samples were collected from peripheral veins before starting the procedure, and again, at 2 and 3 weeks after the procedure, respectively. Serum NO and ET concentrations of blood samples were tested. Nineteen patients with carotid artery stenosis who underwent stent assisted angioplasty were randomly selected, and their serum NO and ET were tested using the same methods as above.
RESULTSIn the animal group, there was a significant decrease of mean NO concentration at 2 weeks after carotid injury (t-test, P < 0.05), however, no significant change of ET was observed. A very significant increase of ET was observed at 3 weeks after the procedure (t-test, P < 0.01). In the patient group, there were no significant differences among serum NO or ET concentration of peripheral vein blood before, immediately after, and 6 h after the endovascular treatment.
CONCLUSIONSIn this study, a decrease of NO concentration and an increase of ET concentration of peripheral vein blood are found in BA-MA minipigs after carotid arteries are injured by balloon denudation, which might be a cue for the formation of atherosclerosis. However, no significant changes are observed in this group of patients who underwent carotid angioplasty treatment. Therefore, further studies are needed.
Aged ; Angioplasty, Balloon ; Animals ; Carotid Arteries ; surgery ; Carotid Stenosis ; blood ; surgery ; Disease Models, Animal ; Endothelins ; blood ; Female ; Humans ; Male ; Middle Aged ; Nitric Oxide ; blood ; Postoperative Period ; Random Allocation ; Stents ; Swine ; Swine, Miniature
6.Effect of propranolol gel on infantile hemangiomas.
Ya-Nan ZHAI ; Hong-Tao SONG ; Shao-Quan CHEN ; Min-Xin ZHANG ; Cheng-Jin LI ; Yin XIA ; Lie WANG
Chinese Journal of Plastic Surgery 2013;29(1):25-28
OBJECTIVETo evaluate the efficacy and security of propranolol gel in treatment of Infantile hemangiomas.
METHODS51 consecutive infants with hemangiomas from October 2010 to September 2011 in Department of General Surgery Fuzhou General Hospital of Nanjing Military Command were treated with propranolol hydrochloride 3% gel. Changes in hemangioma size, texture, color, tumor blood flow peak were recorded.
RESULTSThe results were evaluated using Achauer system, responses of IHs to propranolol were considered scale I (poor) in 4 patient (17.24%), scale II (moderate) in 18 patients (24.14%), scale III (good) in 22 patients (44.83%) and scale IV (excellent) in 7 patients (13.79%). The response of superficial hemangiomas was significantly better than other hemangiomas (P < 0.05), and no significant differences in response among different primary sites (P > 0.05).
CONCLUSIONSTopical use of propranolol hydrochloride 3% gel is an effective option for superficial hemangiomas.
Female ; Hemangioma, Capillary ; drug therapy ; Humans ; Hydrogels ; Infant ; Infant, Newborn ; Male ; Propranolol ; administration & dosage ; therapeutic use ; Skin Neoplasms ; drug therapy ; Treatment Outcome
7.Prediction of fatal adverse prognosis in patients with fever-related diseases based on machine learning: a retrospective study
Chun-Hong ZHAO ; Hui-Tao WU ; He-Bin CHE ; Ya-Nan SONG ; Yu-Zhuo ZHAO ; Kai-Yuan LI ; Hong-Ju XIAO ; Yong-Zhi ZHAI ; Xin LIU ; Hong-Xi LU ; Tan-Shi LI
Chinese Medical Journal 2020;133(5):583-589
Background::Fever is the most common chief complaint of emergency patients. Early identification of patients at an increasing risk of death may avert adverse outcomes. The aim of this study was to establish an early prediction model of fatal adverse prognosis of fever patients by extracting key indicators using big data technology.Methods::A retrospective study of patients’ data was conducted using the Emergency Rescue Database of Chinese People’s Liberation Army General Hospital. Patients were divided into the fatal adverse prognosis group and the good prognosis group. The commonly used clinical indicators were compared. Recursive feature elimination method was used to determine the optimal number of the included variables. In the training model, logistic regression, random forest, adaboost, and bagging were selected. We also collected the emergency room data from December 2018 to December 2019 with the same inclusion and exclusion criterion. The performance of the model was evaluated by accuracy, F1-score, precision, sensitivity, and the areas under receiver operator characteristic curves (ROC-AUC).Results::The accuracy of logistic regression, decision tree, adaboost and bagging was 0.951, 0.928, 0.924, and 0.924, F1-scores were 0.938, 0.933, 0.930, and 0.930, the precision was 0.943, 0.938, 0.937, and 0.937, ROC-AUC were 0.808, 0.738, 0.736, and 0.885, respectively. ROC-AUC of ten-fold cross-validation in logistic and bagging models were 0.80 and 0.87, respectively. The top six coefficients and odds ratio (OR) values of the variables in the logistic regression were cardiac troponin T (CTnT) (coefficient = 0.346, OR = 1.413), temperature (T) (coefficient = 0.235, OR = 1.265), respiratory rate (RR) (coefficient= –0.206, OR = 0.814), serum kalium (K) (coefficient = 0.137, OR = 1.146), pulse oxygen saturation (SPO 2) (coefficient = –0.101, OR = 0.904), and albumin (ALB) (coefficient = –0.043, OR = 0.958). The weights of the top six variables in the bagging model were: CTnT, RR, lactate dehydrogenase, serum amylase, heart rate, and systolic blood pressure. Conclusions::The main clinical indicators of concern included CTnT, RR, SPO 2, T, ALB, and K. The bagging model and logistic regression model had better diagnostic performance comprehesively. Those may be conducive to the early identification of critical patients with fever by physicians.
8.Determination of taxifolin in Polygonum orientale of different storage period.
Ya-Nan TAN ; Miao-Miao TONG ; Yu-Yao ZHANG ; Yang-Yang XU ; Yan-Jun ZHAI
China Journal of Chinese Materia Medica 2013;38(17):2779-2781
OBJECTIVETo find out the correlation between the content of taxifolin in Polygonum orientale and the storage time.
METHODHPLC was used to determine taxifolin. The chromatographic condition was as following: Diamonsil C18 column (4.6 mm x 200 mm, 5 microm), mobile phase acetonitrile -0.1% phosphoric acid (gradient elution), the detection wavelength 290 nm and flow rate 1.0 mL x min(-1), the column temperature 30 degrees C.
RESULTThe injection volume of taxifolin was in good linearity within 0.07 and 0.35 microg, the average recovery was 99.7% with RSD 0.2%. Taxifolin content was 0.84, 1.36, 1.75, 1.99 mg x g(-1) corresponding to storage time of 10, 7, 6, 5 years, respectively.
CONCLUSIONThe content of taxifolin decreased with the storage time. When the storage period is more than six years, the content is lower than that required by Chinese Pharmacopoeia (2010 version). This method has a good repeatability and accuracy, it provides a scientific reference for clinical use and quality evaluation of P. orientale.
Chromatography, High Pressure Liquid ; Drug Stability ; Drug Storage ; methods ; Drugs, Chinese Herbal ; analysis ; Polygonum ; chemistry ; Quercetin ; analogs & derivatives ; analysis
9.Incidences of aortic and mitral valve strands in patients with migraine with aura.
Ya-nan ZHAI ; Yue LI ; Li-qun WEI ; Mei-qing ZHANG ; Hong-quan LU ; Li ZHANG
Acta Academiae Medicinae Sinicae 2015;37(2):147-151
OBJECTIVETo analyze the potential association between valvular strands and migraine with aura.
METHODSDuring a 1-year period,transesophageal echocardiography was performed in 51 consecutive patients with migraine with aura and 75 control subjects who underwent transesophageal echocardiography for other purposes and had no history of migraine. The presence of aortic and mitral valve strands was evaluated.
RESULTSThe incidence of valvular strands was 21.5% (11/51) in migraine patients and 28.0% (21/75) in control subjects (Χ²=0.663, P=0.416). The incidence of patent foramen ovale was significantly higher in patients with migraine with aura than in control subjects (50.9% vs.29.3%) (Χ²=6.302, P=0.012). The incidence of aortic valve strands was significantly higher than that of mitral valve strands in migraine patients (Χ²=4.320,P=0.038).
CONCLUSIONValvular strands are not associated with migraine with aura and show little clinical significance.
Aorta ; Echocardiography, Transesophageal ; Foramen Ovale, Patent ; Humans ; Incidence ; Migraine with Aura ; Migraine without Aura ; Mitral Valve
10.The role of endoplasmic reticulum stress in gut-pancreas axis dysfunction in type 2 diabetes
Li-ran LEI ; Ya-xin FU ; Quan LIU ; Jia-yu ZHAI ; Zhu-fang SHEN ; Hui CAO ; Shuai-nan LIU
Acta Pharmaceutica Sinica 2024;59(12):3189-3198
Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder characterized by chronic hyperglycemia, hyperlipidemia, and peripheral insulin resistance. Endoplasmic reticulum stress (ERS), a response to cellular stress, is activated across various tissues during the progression of T2DM, leading to disruptions in protein synthesis. Notably, epithelial and endocrine cells with hormone-secreting functions are particularly vulnerable to functional impairments induced by ERS. The gut-pancreas axis is essential for regulating metabolism and the progression of T2DM. Intestinal epithelial L cells, integral to the intestinal barrier, can secrete the glucagon-like peptide-1 (GLP-1). This hormone promotes insulin secretion from pancreatic