1.Mechanisms of Intestinal Microecology in Hyperuricemia and Traditional Chinese Medicine Intervention:A Review
Mingyuan FAN ; Jiuzhu YUAN ; Hongyan XIE ; Sai ZHANG ; Qiyuan YAO ; Luqi HE ; Qingqing FU ; Hong GAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):329-338
In recent years, hyperuricemia (HUA) has shown a rapidly increasing incidence and tends to occur in increasingly young people, with a wide range of cardiac, renal, joint, and cancerous hazards and all-cause mortality associations. Western medicine treatment has limitations such as large liver and kidney damage, medication restriction, and easy recurrence. The intestine is the major extra-renal excretion pathway for uric acid (UA), and the intestinal microecology can be regulated to promote UA degradation. It offers great potential to develop UA-lowering strategies that target the intestinal microecology, which are promising to provide safer and more effective therapeutic approaches. Traditional Chinese medicine (TCM) can treat HUA via multiple targets and multiple pathways from a holistic view, with low toxicity and side effects. Studies have shown that intestinal microecology is a crucial target for TCM in the treatment of HUA. However, its specific mechanism of action has not been fully elucidated. Focusing on the key role of intestinal microecology in HUA, this review explores the relationship between intestinal microecology and HUA in terms of intestinal flora, intestinal metabolites, intestinal UA transporters, and intestinal barriers. Furthermore, we summarize the research progress in TCM treatment of HUA by targeting the intestinal microecology, with the aim of providing references for the development of TCM intervention strategies for HUA and the direction of future research.
2.Clinical application progress of flow cytometry in diagnosis and therapeutic monitoring of patients with nonhematopoietic neoplasms
Qianwen HU ; Suwen YANG ; Sai QIAO ; Xinyou XIE ; Jun ZHANG
Chinese Journal of Laboratory Medicine 2024;47(7):722-728
Flow cytometry (FCM) is an interdisciplinary cell analysis technology that integrates optics, fluid dynamics, electronics, and computer science. While FCM is widely utilized in diagnosing and monitoring hematologic malignancies, its application in nonhematopoietic neoplasms (NHN) remains in its nascent stages. However, recent advancements in science and technology have led to the emergence of innovative FCM technologies, such as mass spectrometry flow cytometry (CyTOF) and spectral flow cytometry (SFC), offering promising avenues for their clinical application aiming to assist the clinical diagnosis of NHN patients. This review summarizes the features of fundamentals of traditional FCM, CyTOF, and SFC technologies, along with their applications and future prospective in NHN diagnosis and treatment, aiming to offer updated insights for the continued expansion and utilization of FCM technology in clinical laboratory settings.
3.Relationship Between NLRP3 Inflammasome and Diabetic Cardiomyopathy and Intervention Effect of Traditional Chinese Medicine: A Review
Sai ZHANG ; Zhengtao CHEN ; Shiyun TANG ; Chunguang XIE ; Lian DU ; Hong GAO
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(16):250-263
Diabetic cardiomyopathy (DCM) is one of the complications of diabetes. It refers to a specific type of idiopathic cardiomyopathy that occurs in individuals with diabetes, distinct from other cardiovascular diseases such as coronary heart disease, valvular heart disease, or congenital heart disease. It has also been identified as one of the leading causes of death in diabetic patients for many years. Research has shown that the pathogenesis of DCM is closely associated with insulin resistance, activation of various inflammatory responses, increased oxidative stress, impaired coronary microcirculation, and accumulation of advanced glycation end products (AGEs). Among various inflammatory responses, the activation of the NOD-like receptor protein 3 (NLRP3) inflammasome can induce the secretion of a large amount of pro-inflammatory cytokines through the cascade reaction of inflammation, subsequently mediating cellular pyroptosis and promoting myocardial damage. Currently, extensive experimental studies on traditional Chinese medicine (TCM) have been conducted in China and abroad based on the significant role of the NLRP3 inflammasome in the prevention and treatment of DCM. These studies have demonstrated that Chinese medicinal extracts, such as Astragalus polysaccharide and ginsenoside Rb1, single drugs like Coriolus and Cordyceps, and Chinese medicinal formulas like Didangtang and modified Taohe Chengqitang, as well as acupuncture and TCM exercise therapy, can regulate the relevant pathways of the NLRP3 inflammasome to inhibit its assembly or activation, reduce inflammatory responses, inhibit myocardial remodeling in DCM, and improve cardiac function. This article reviewed the relationship between the NLRP3 inflammasome and DCM, as well as the research progress on TCM in exerting anti-inflammatory effects in this field, aiming to provide new insights for the development of therapeutic approaches for DCM.
4.Development and application of three-dimensional point cloud radiotherapy real-time monitoring system based on depth camera
Chunying LI ; Zhengda LU ; Sai ZHANG ; Jiawei SUN ; Liugang GAO ; Kai XIE ; Tao LIN ; Jianfeng SUI ; Xinye NI
Chinese Journal of Radiation Oncology 2023;32(2):145-151
Objective:To develop the real-time radiotherapy monitoring system of three-dimensional (3D) point cloud by using depth camera and verify its feasibility.Methods:Taking the depth camera coordinate system as the world coordinate system, the conversion relationship between the simulation CT coordinate system and the world coordinate system was obtained from the calibration module. The patient's simulation CT point cloud was transformed into the world coordinate system through the above relationship, and registered with the patient's surface point cloud obtained in real-time manner by the depth camera to calculate the six-dimensional (6D) error, and complete the positioning verification and fractional internal position error monitoring in radiotherapy. Mean and standard deviation of 6D calculation error, Hausdorff distance of point cloud after registration and the running time of each part of the program were calculated to verify the feasibility of the system. Fifteen real patients were selected to calculate the 6D error between the system and cone beam CT (CBCT).Results:In the phantom experiment, the errors of the system in the x, y and z axes were (1.292±0.880)mm, (1.963±1.115)mm, (1.496±1.045)mm, respectively, and the errors in the rotation, pitch and roll directions were 0.201°±0.181°, 0.286°±0.326°, 0.181°±0.192°, respectively. For real patients, the translational error of the system was within 2.6 mm, the rotational error was approximately 1°, and the program run at 1-2 frames/s. The precision and speed met the radiotherapy requirement. Conclusion:The 3D point cloud radiotherapy real-time monitoring system based on depth camera can automatically complete the positioning verification before radiotherapy, real-time monitoring of body position during radiotherapy, and provide error visual feedback, which has potential clinical application value.
5.Analysis of diagnosis and treatment of invasive renal parenchymal urothelial carcinoma
Dawei XIE ; Sai LIU ; Liming SONG ; Xiquan TIAN ; Jiqing ZHANG ; Xiaodong ZHANG ; Jianwen WANG
Chinese Journal of Urology 2023;44(1):12-15
Objective:To investigate the clinical features of diagnosis and treatment of renal parenchymal invasive urothelial carcinoma.Methods:The clinical data of 23 patients with renal parenchymal invasive urothelial carcinoma admitted to Beijing Chaoyang Hospital Affiliated to Capital Medical University from January 2014 to December 2020 were retrospectively analyzed. There were 12 males and 11 females. The mean age was (67.3±10.1) years old. Among them, 7 cases complained of painless hematuria and 9 cases were asymptomatic. Three cases underwent preoperative MRI examination, 19 patients underwent preoperative enhanced CT examination, and 1 patient underwent both MRI and enhanced CT examination. MRI examination showed renal lobulated and other T1 mixed with T2 signals, the boundary was not clear, and DWI showed obvious restricted diffusion. The tumor was located on the left side in 15 cases and on the right side in 8 cases. Preoperative diagnosis was made by fine needle aspiration biopsy in 1 patient, and specimens were obtained by flexible ureteroscope in 2 patients. No tumor was reported. The preoperative diagnosis of 22 patients was unclear and the nature of the tumor could not be determined. One patient was considered to have urothelial carcinoma by fine needle aspiration. All patients were treated by surgery, including 20 cases of laparoscopic radical nephrectomy and 3 cases of nephroureterectomy with bladder sleeve resection.Results:Postoperative pathological specimens showed yellow-white mass, high-grade invasive urothelial carcinoma invading renal parenchyma. Nine cases were T 3a stage, 14 cases were T 3b stage, and 5 cases were lymph node metastasis. The average postoperative follow-up time was (18.6±6.72)months, 2 patients were lost to follow-up, 8 patients died, and the overall mortality rate was 38.1%. Seven patients died of recurrence or metastasis. There were 3 cases of bladder recurrence and 5 cases of metastasis after operation. Conclusions:Renal parenchymal infiltrating urothelial carcinoma is difficult to diagnose in the early stage, with poor clinical biological behavior and poor overall prognosis. For patients diagnosed with renal parenchymal invasive urothelial carcinoma preoperatively, laparoscopic nephroureterectomy + bladder sleeve resection is recommended.
6.Reconstruction of thoracic CT based on single-view projection with a cycle dual-task network in radiotherapy
Jiawei SUN ; Sai ZHANG ; Heng ZHANG ; Kai XIE ; Liugang GAO ; Tao LIN ; Jianfeng SUI ; Xinye NI
Chinese Journal of Radiation Oncology 2023;32(9):829-835
Objective:To construct a cycle dual-task network based on cycleGAN to implement 3D CT synthesis from single-view projection for adaptive radiotherapy of thoracic tumor and then evaluate image quality and dose accuracy.Methods:A total of 45 thoracic tumor patients admitted to the Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University were collected, and 991 cases were also selected from public dataset as pretrained dataset. Multi-view projections were acquired by ASTRA algorithm. The public dataset was divided into a training set of 800 cases, a validation set of 160 cases and a test set of 31 cases. The dataset obtained from patients in our hospital was divided into a training set of 40 cases and a test set of 5 cases. The network included synthetic CT model and multi-view projection prediction model and achieved the dual-task training. The final test only used the synthetic CT model to acquire the predicted CT images and deliver image quality [mean absolute error (MAE), peak signal-to-noise ratio (PSNR) and structural similarity index (SSIM)] and dose evaluation.Results:Image quality evaluation metrics for synthetic CT showed high image synthesis accuracy with MAE of 0.05±0.01, PSNR of 19.08±1.69, SSIM of 0.75±0.04, respectively. The dose distribution calculated on synthetic CT was also close to the actual dose distribution. The mean 3%/3 mm γ pass rate for synthetic CT was 93.1%.Conclusions:A dual-task cycle network modified on cycleGAN has been implemented to rapidly and accurately predict 3D CT from single-view projection, which can be applied to the workflow of adaptive radiotherapy for thoracic cancer. Both image generation quality and dosimetric evaluation demonstrate that synthetic CT can meet the clinical requirements for radiotherapy.
7.Dosimetric effect of CT truncated regionson radiotherapy for thoracic esophageal cancer
Kai XIE ; Heng ZHANG ; Qianyi XI ; Fan ZHANG ; Sai ZHANG ; Liugang GAO ; Jiawei SUN ; Tao LIN ; Jianfeng SUI ; Xinye NI
Chinese Journal of Radiological Health 2022;31(6):724-730
Objective To investigate the dosimetric effect of truncated regions in computed tomography (CT) images on the targets and organs at risk in volumetric modulated arc therapy (VMAT) for middle thoracic esophageal cancer. Methods CT images of 15 patients with middle thoracic esophageal cancer were selected. Circle masks were used to make the volume of the truncated region account for 10%, 20%, 30%, and 40% of the arm volume, and the corresponding truncated CT images were obtained. The real CT was denoted as CT0. Two radiotherapy plans were made on CT0. One plan was VMAT_1F with full arcs, and the other one was VMAT_3F with arm avoidance. The plans were transplanted to four truncated CT, respectively, and the dosimetric differences between different plans were compared using Wilcoxon signed-rank test. Results Compared with VMAT_1F in CT0, Dmean and V5 of the lung decreased in VMAT_3F, but Dmax of the spinal cord, Dmean of the heart, and V20 of the lung increased. In VMAT_3F, there was no statistically significant difference between the dosimetric parameters in the four truncated CT and those in CT0 (all P > 0.05). In VMAT_1F, except for homogeneity index and Dmax of the spinal cord, the dosimetric parameters in four truncated CT were significantly different from those in CT0 (P < 0.05). The dosimetric difference increased with the increase in truncated region-to-volume ratio. Conclusion Complete CT data should be collected in clinical practice, and the radiation field avoiding the truncated regionshould be set if necessary to reduce the influence of the truncated region on dosimetry.
8.Analysis of Pulmonary Fibrosis Animal Models Based on Clinical Characteristics in Traditional Chinese Medicine and Western Medicine
Ming BAI ; Sai WANG ; Yi-xuan XIE ; Ya-nan ZHANG ; Ming-san MIAO
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(13):244-250
This paper collated the western medicine and traditional Chinese medicine (TCM) diagnostic criteria of pulmonary fibrosis (PF) based on its clinical characteristics and relevant literature reports and summarized the inductive agents, methods, objects, and mechanisms for replicating the PF animal models as well as their respective advantages and disadvantages. By analyzing the consistency of symptoms among successfully modeled animal models with the clinical characteristics in TCM and western medicine, we found that the intratracheal injection of bleomycin was the most frequently employed method for modeling, and the resulting outcomes were very similar to clinical characteristics in TCM and Western Medicine. Besides, considering the time-saving process, high stability, good repeatability, and low cost, such method was suitable for the rapid screening of drugs. The second preferred method was intraperitoneal injection of paraquat, which exhibited the advantages of high degree of consistency with clinical characteristics of PF caused by paraquat poisoning, low cost, high success rate, and easy operation, which allowed it to be suitable for exploring the mechanism of paraquat poisoning and developing the antidotes. The existing PF animal models shared a fairly high degree of consistency in symptoms with patients diagnosed as having PF in western medicine. However, the criteria for TCM syndrome differentiation remained unclear, and the animal models failed to reflect TCM pathogenesis. It is necessary to establish more accurate TCM diagnostic criteria that focus on syndrome differentiation and reveal TCM etiology and pathogenesis and carry out more experiments concerning TCM syndromes of PF in the future, so as to better treat PF with integrated TCM and Western Medicine.
9.Animal Model of Cystitis Based on Clinical Characteristics of Traditional Chinese and Western Medicine
Yi-xuan XIE ; Sai WANG ; Hao-zhe LIU ; Fei-peng ZHU ; Ming-san MIAO
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(11):246-250
Cystitis, one of the most common diseases in the urinary system, is manifested by urinary frequency, urinary urgency, and bladder pain, which are known as the classic symptom triad of bladder irritation, especially in women. In recent years, with the change of the lifestyle, the prevalence of bladder diseases in China is increasing year by year. According to the characteristics of etiology, pathogenesis, and clinical symptoms of cystitis, this paper listed the clinical diagnostic criteria in traditional Chinese medicine (TCM) and western medicine after consulting the relevant literature. Through the analysis of the existing animal model of cystitis, the fit between the model and clinical manifestations was evaluated, and the advantages and disadvantages were summarized. The models induced by "intraperitoneal injection of cyclophosphamide" and "Freund's complete adjuvant combined with bladder catheterization" were proved highly matched with manifestations despite some shortcomings such as long time and high cost. At present, the diagnostic criteria of cystitis are mainly based on western medicine, and the definitive diagnosis of the relevant types still depends on cystoscopy and tissue biopsy. The lack of TCM syndrome model limits the TCM research. Additionally, four diagnostic methods in TCM cannot be well applied to animal models because of the susceptibility to subjective factors. Behavioral tests can be used to determine the model index and develop the relevant behavior rating scale. Therefore, it is necessary to establish an animal model of cystitis in line with the clinical characteristics of western medicine and TCM syndrome differentiation, so as to better promote the study of cystitis.
10.Analysis of Volatile Organic Compounds in Rhizosphere Soil of Rehmannia glutinosa Under Intercropping Zea mays Based on GC-MS Metabonomics
Li GU ; Xiao-sai TAO ; Feng-qing WANG ; Ming-jie LI ; Chao-fei YANG ; Rui-bin SUN ; Cai-xia XIE ; Zhong-yi ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(10):102-108
Objective:To explore the composition characteristics of rhizosphere soil under


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