1.Preliminary study of high frequency ultrasound screening for hyperuricemia in patients with joint disease
Xiuzhen HE ; Qiaorong LIANG ; Shouyi YU ; Yan YANG ; Yuncong CHEN
Chinese Journal of Rheumatology 2013;17(8):557-559
Objective To explore the value of high frequency ultrasonography for the early diagnosis of hyperuricemia in patients with joint disease.Methods Ninety-eight patients with hyperuricemia and 100 healthy persons,according to with or without history of acute gout attack,were divided into symptomatic group,asymptomatic group and control group,whose first metatarsophalangeal joint,ankle and knee were examined by high frequency ultrasonography.Chi-square test was used for statistical analysis.Results ① The joint lesions detection rate in the symptomatic group,asymptomatic group and the control group was 57% (13/23),16% (12/75),0 (0/100) respectively.There was statistical significant difference between the symptomatic group and the asymptomatic group (x2=9.69,P<0.05).② The symptomatic group had 29 joint involvement (29/138),including 25 at the first metatarsophalangeal joint,3 at the ankle and one at the knee joint.The asymptomatic group had 14 joints involved (14/450),which were all located at the first metatarsophalangeal joint.③ The sonographic appearance of the two groups of arthropathy were synovial thickening,effusion,crystal deposition andbone erosion.The symptoms group presented as tophi,and increased synovial blood flow.Conclusion Patients with asymptomatic hyperuricemia may have joint diseases.The joint disease detection rate of the symptomatic group is higher than that of the asymptomatic group.High frequency ultrasonography can be used a conventional imaging method for the screening of patients with hyperuricemia joint disease.The focus of the screening of asymptomatic patients is the first metatarsophalangeal joint.The focus of the screening of symptomatic patients is the first metatarsophalangeal joint and the joints that were attacked in the past history.
2.Hypofibrinogenemia is a risk factor of poor prognosis of HELLP syndrome
Sisi MA ; Jing LAN ; Yuncong ZHANG ; Han GUO ; Shuo YANG ; Rui QIAO
Chinese Journal of Laboratory Medicine 2019;42(4):282-286
Objective Observing changes in thehaemostatic system to determinetheseverity and prognosis of HELLP syndrome. Methods 127 cases of HELLP syndrome diagnosed in Peking University Third Hospital were enrolled from August 2010 to August 2018. Maternal and fetaldemographic characters, postpartum complications,length of hospital stay,prothrombin time(PT),activated partial thromboplastin time (APTT), Fibrinogen(Fg) and D-Dimer(D-D) were collected. Results There was no statistical difference inparturient PT, APTT, D-D levels between maternals of HELLP syndrome with and without postpartum hemorrhage,which were [9.6 (9.0, 11.5)s vs 9.4 (8.9, 9.7)s, P=0.243], [30.2 (29.1, 38.3)s vs 29.8 (27.7, 31.8)s, P=0.151], and [0.80 (0.52, 4.52)μg/ml vs 0.91 (0.55, 2.48)μg/ml, P=0.923] respectively. There was a statistically significant difference obvious difference in parturient Fglevels between two groups [(2.94±1.48) g/L vs (3.61±1.00)g/L, P=0.022). The receiver operating characteristic curve(ROC) analysis showed that the AUC of fibrinogen level when estimating postpartum hemorrhage was 0.688(95%CI:0.600-0.767), cut-off value was 3.04 g/L, negative predictive value was 74.3%. There was a negative correlation between parturient Fg and days of hospital stay of HELLP syndrome maternal(r=-0.182, P=0.040). There was no statistical difference in parturient PT, APTT, Fg and D-D levels between the fetal survival group(n=93) and non-survival group (n=34), and between the distressed group (n=23) and he undistressed group(n=70) (P>0.05). Conclusions The low parturient Fg level may be a risk factor of maternal adverse clinical outcomes in HELLP syndrome. Maintaining the Fg at a stable level may reduce the incidence of HELLP syndrome adverse outcomes.
3.Circulating microsome proteins in the pathogenesis of preeclampsia
Yuncong ZHANG ; Jing YANG ; Shuo YANG ; Chanjuan CUI ; Cheng ZHAO ; Han GUO ; Yangyu ZHAO ; Jie ZHANG ; Yuan WEI ; Rui QIAO
Chinese Journal of Laboratory Medicine 2019;42(4):255-261
Objective In this study, we aimed to detect the level of total circulating microparticles (MPs) in pregnant women with preeclampsia (PE) and analyze the proteome of MPs to explore their roles in the pathogenesis and progression of PE. Methods 98 pregnant women with PE, 54 healthy pregnant women, and 51 healthy non-pregnant women were enrolled from December 2016 to June 2018, whose MP levels were detected by flow cytometry and compared. Proteins extracted from the MPs were analyzed by high performance liquid chromatography mass spectrometry.Results The total MP level of the healthy pregnant group was significantly higher than thatof the non-pregnant group [159.87 (113.25, 218.18)/μl vs 94.10 (53.35, 140.23)/μl, P=0.004], but was not significantly different from that of the PE group. By proteomic profiling, 30 differential proteins were obtained between healthy pregnant women and healthy non-pregnant women, which were closely related to biological processes such as complements, coagulation cascades, angiogenesis and so on; 14 differential proteins were found between PE patients and healthy pregnant women, which were closely related to biological processes such as coagulation cascades, complements and inflammatory reactions, angiogenesis and so forth. Conclusions The level of circulating MPs may reflect the hypercoagulability of preeclampsia. In addition, circulating MPs may be involved in the pathogenesis of PE through various pathways by carrying different proteins, which indicates their potential value in the intervention of PE.
4.The status quo, problems and challenge of chronic disease management system in Shanghai Hongkou district
Xiaojun MA ; Weihua GONG ; Meihong ZHU ; Yuncong HUANG ; Yonghua YANG ; Qing GU
Chinese Journal of General Practitioners 2021;20(7):781-785
From April to November 2019, 5 community health service centers in Shanghai Hongkou District were randomly selected for thematic group interviews to investigate the current status, problems and challenge for further development of chronic disease management. The community chronic disease management was mainly divided into growth period (typically hypertension and diabetes) and introduction period (cardiovascular and cerebrovascular diseases, respiratory diseases, dementia, osteoporosis). The management of hypertension and diabetes in the growing stage mainly faced difficulties such as refusal or non-cooperation of patients, loss of follow-up, incomplete quality control, not meeting quality control indicators, repeated management of comorbidities, insufficient information sharing, and discrepancy in assessment indicators of multiple parties. The management of cardiovascular and cerebrovascular diseases, respiratory diseases and other diseases in the introduction period mainly faced poor awareness rate of patients, loss of follow-up, difficulty in diagnosis, irregular medication, insufficient information sharing, lack of management plan, insufficient resource investment, and few variety of medicines in the community. The current management system should be refined to provide more effective and efficient chronic disease management in the community. Meanwhile, the awareness of residents, the information network and multi-center collaborative research also need to be strengthened.
5.Efficacy of arthroscopic superior capsular reconstruction using composite autologous patch graft combined with tenodesis of the long head of the biceps tendon in the treatment of irreparable massive rotator cuff tears
Yuncong JI ; Jian XU ; Yunkang KANG ; Wenzhi BI ; Wei MA ; Dongqiang YANG ; Honglin CUI ; Pengfei FU ; Yijun LIU ; Jinxiang TIAN ; Biao GUO
Chinese Journal of Trauma 2024;40(3):236-242
Objective:To investigate the efficacy of arthroscopic superior capsular reconstruction using composite autologous patch graft combined with tenodesis of the long head of the biceps tendon in the treatment of irreparable massive rotator cuff tears (IMRCT).Methods:A retrospective case series study was performed on 11 IMRCT patients who were admitted to Affiliated Fuyang Hospital of Bengbu Medical University (Fuyang People′s Hospital) from May 2020 to June 2022, including 7 males and 4 females, aged 54-74 years [(62.6±7.3)years]. All the patients were treated with arthroscopic superior capsular reconstruction using composite patch graft combined with tenodesis of the long head of the biceps tendon. The Visual Analogue Scale (VAS), Acromiohumeral Distance (AHD), Constant-Murley score and University of California Los Angeles (UCLA) score and active range of motion of the shoulder joint before, at 6 months after surgery and at the last follow-up were compared. At the last follow-up, the integrity of reconstructed superior capsule and the long head of the biceps tendon was evaluated using MRI of the shoulder joint. Postoperative complications were observed.Results:All the patients were followed up for 13-39 months [16(13, 36)months]. The VAS score, AHD, Constant-Murley score, and UCLA score were 2(2, 3)points, (9.1±1.1)mm, (56.1±5.4)points, and (19.7±2.8)points respectively at 6 months after surgery, which were all significantly improved from those before surgery [6(5, 7)points, (5.1±1.2)mm, (37.9±2.2)points, and (11.8±1.2)points] ( P<0.05). The VAS score, AHD, Constant-Murley score, and UCLA score were 0(0, 1)points, (8.4±0.9)mm, (83.6±3.8)points, and (28.2±2.3)points respectively at the last follow-up, which were all significantly improved from those before surgery ( P<0.05). At the last follow-up, the VAS score or AHD were not significantly improved from those at 6 months after surgery ( P>0.05); Constant-Murley score and UCLA score were both significantly improved from those at 6 months after surgery ( P<0.05). At 6 months after surgery, shoulder active ranges of motion in forward flexion, abduction and external rotation were (134.6±13.5)°, (124.6±18.6)° and 45(40, 50)° respectively, which were all significantly improved compared with those before surgery [(63.2±36.1)°, (65.0±23.1)°, and [30(20, 40)°] ( P<0.05). At the last follow-up, shoulder active ranges of motion in forward flexion, abduction and external rotation were (144.1±12.6)°, (139.6±15.4)° and 60(45, 65)° respectively, which were all significantly improved compared with those before surgery ( P<0.05). There were no significant differences in active range of motion of the shoulder in forward flexion, abduction and external rotation between 6 months after surgery and the last follow-up ( P>0.05). At the last follow-up, MRI revealed integrity of the reconstructed superior joint capsule and the long head of the biceps tendon in 10 patients. One patient developed resorption of the greater tuberosity and 1 showed a partial tear of the supraspinatus tendon at 1 year after surgery. Conclusion:Arthroscopic superior capsular reconstruction using composite autologous patch graft combined with tenodesis of the long head of the biceps tendon can relieve shoulder pain, decrease upward displacement of the humerus head, improve the function and range of motion of the shoulder joint, and reduce complications in the treatment of IMRCT.
6.Analysis of thromboinflammatory response expression profile in pregnancy and preeclampsia
Han GUO ; Xiaomei ZHANG ; Jing YANG ; Yuncong ZHANG ; Shuo YANG ; Yangyu ZHAO ; Xiaobo YU ; Jie ZHANG ; Rui QIAO
Chinese Journal of Clinical Laboratory Science 2019;37(11):831-837
Objective:
To explore the differences of thromboinflammatory response between healthy pregnancy and preeclampsia (PE) and provide potential strategies for diagnosis and prevention of PE.
Methods:
The antibody microarray was prepared to detect plasma protein expression profile of non-pregnant women, healthy pregnant women and preeclampsia patients. The differentially expressed proteins were identified and analyzed.
Results:
The levels of 37 proteins were significantly different between non-pregnant and healthy pregnant women, among which 16 proteins were increased, such as disintegrin, metalloproteinase domain-containing protein 12 and C-C motif chemokine 2, while 21 proteins were decreased, such as GM-CSF and apolipoprotein F. The levels of 27 proteins were significantly different between healthy pregnant women and preeclampsia patients, among which 16 proteins were increased, such as GM-CSF and VEGFR2 and 11 proteins were decreased, such as tumor necrosis factor-related apoptosis-inducing ligand and interferon Omega 1. Further analysis found that PE patients group presented more complicated changes compared with healthy pregnant women. PE group included more significantly increased proteins which involved in inflammation and immune responses and elevated levels of acute phase reaction, while the levels of more anti-inflammation cytokines decreased significantly. In the plasma of PE patients more proteins participating thrombosis and complement reaction increased significantly. Also, renin level was significantly dropped and VEGFR2 was elevated.
Conclusion
More serious inflammatory response, hypercoagulable status and imbalance of angiogenesis and anti-angiogenesis may exist in PE, which should be helpful for further improving potential strategies in diagnosis and prevention of PE.
7.Epilepsy detection and analysis method for specific patient based on data augmentation and deep learning.
Yong YANG ; Xiaolin QIN ; Xiaoguang LIN ; Han WEN ; Yuncong PENG
Journal of Biomedical Engineering 2022;39(2):293-300
In recent years, epileptic seizure detection based on electroencephalogram (EEG) has attracted the widespread attention of the academic. However, it is difficult to collect data from epileptic seizure, and it is easy to cause over fitting phenomenon under the condition of few training data. In order to solve this problem, this paper took the CHB-MIT epilepsy EEG dataset from Boston Children's Hospital as the research object, and applied wavelet transform for data augmentation by setting different wavelet transform scale factors. In addition, by combining deep learning, ensemble learning, transfer learning and other methods, an epilepsy detection method with high accuracy for specific epilepsy patients was proposed under the condition of insufficient learning samples. In test, the wavelet transform scale factors 2, 4 and 8 were set for experimental comparison and verification. When the wavelet scale factor was 8, the average accuracy, average sensitivity and average specificity was 95.47%, 93.89% and 96.48%, respectively. Through comparative experiments with recent relevant literatures, the advantages of the proposed method were verified. Our results might provide reference for the clinical application of epilepsy detection.
Algorithms
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Child
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Deep Learning
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Electroencephalography
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Epilepsy/diagnosis*
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Humans
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Seizures/diagnosis*
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Signal Processing, Computer-Assisted
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Wavelet Analysis
8.Discovery of highly selective and orally available benzimidazole-based phosphodiesterase 10 inhibitors with improved solubility and pharmacokinetic properties for treatment of pulmonary arterial hypertension.
Yuncong YANG ; Sirui ZHANG ; Qian ZHOU ; Chen ZHANG ; Yuqi GAO ; Hao WANG ; Zhe LI ; Deyan WU ; Yinuo WU ; Yi-You HUANG ; Lei GUO ; Hai-Bin LUO
Acta Pharmaceutica Sinica B 2020;10(12):2339-2347
Optimization efforts were devoted to discover novel PDE10A inhibitors in order to improve solubility and pharmacokinetics properties for a long-term therapy against pulmonary arterial hypertension (PAH) starting from the previously synthesized inhibitor