1.Identification of Chemical Constituents in Shangketianshao Gel by LC-Q-TOF/MS
Li YANG ; Mengxuan LI ; Mengyu QIAN ; Wenjun LIU ; Ming YAN ; Liang CAO ; Chenfeng ZHANG ; Juan FU ; Zhenzhong WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(6):1515-1527
Objective The study analyzed and identified the components in Shangketianshao Gel by LC-Q-TOF/MS.Methods The analysis was performed on Agilent Eclipse Plus C18(250 mm×4.6 mm,5 μm)column was applied with methanol and 0.1%formic acid as mobile phase for gradient elution,flow rate was 1 mL·min-1 and column temperature was 30℃.The analytes were determined by positive and negative ion modes with electro-spray ionization source,combined message of standard reference and the literature.Results 103 constituents were identified,all compounds were classified to their medicinal materials derivation.22 compounds from Paeoniae Radix Rubra,33 compounds from Rhei Radix et Rhizoma,20 compounds from Angelicae Dahuricae,23 compounds from Cortex Phellodendr and 14 compounds from Trichosanthes kirilowii Maxim.9 components were jointly owned.Conclusion The study provided a suitable way for Chemical fundamentals and quality control of Shangketianshao Gel and laid a foundation for in depth studies of its pharmacodynamics and the quality control.
2.Simulation Study on Color Matching of Traditional Chinese Medicine Compound Placebo Based on Neural Network Optimi-zation Model
Hang LI ; Shengqiang LI ; Enli ZHOU ; Tuanjie WANG ; Chenfeng ZHANG ; Xin ZHANG ; Wei XIAO ; Zhenzhong WANG
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(1):18-25
OBJECTIVE To predict the amount of colorants used in the preparation of placebo of Chinese medicine by construc-ting particle swarm optimization-back propagation neural network PSO-BPNN compound granules,and to provide a new idea for the simulation of placebo color of Chinese medicine compound granules.METHODS The BP neural network was used to establish the model of sample color parameters L,a?,b?and pigment mass fraction.The global search ability of particle swarm optimization algo-rithm was used to optimize the weight and bias of BP neural network to prevent the local minimum value of the model.The linear reduc-tion weight coefficient method and the introduction of mutation operator were used to improve the global optimization ability of particle swarm optimization algorithm.The color comprehensive evaluation index(ΔE)was used as the objective evaluation standard to verify the test results.RESULTS The training results show that the fitting accuracy of the improved PSO-BP neural network was up to 98.31%.The prediction results show that the prediction error of the improved PSO-BP neural network was the smallest,and the mean absolute percentage error(MAPE),root mean square error(RMSE)and mean color difference(ΔE)were 0.411 5,2.164 6 and 2.56,respectively.The verification samples of three kinds of particles were prepared for verification.The ΔE of the verification sample and the model drug were 1.73,2.63 and 4.11,respectively.The color difference between the two groups and the model drug was small by visual evaluation.CONCLUSION The BP neural network based on the improved particle swarm optimization algorithm can simulate the prediction of the amount of colorants used in the preparation of Chinese medicine compound granules,and can be used as a recommended optimization model for placebo color matching research.
3.Research and Practice on Quality Control of Chinese Medicine Production Process with Functional Substances as Quality Tar-get
Wei XIAO ; Xin ZHANG ; Fangfang XU ; Chenfeng ZHANG ; Zhenzhong WANG
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(10):1030-1038
The quality control during the manufacturing process of traditional Chinese medicine TCM)is paramount to ensuring the quality of the final product.However,the sheer diversity of TCM ingredients and the intricacies of the production process pose sig-nificant challenges to achieving precise quality control.The review introduced an intelligent control concept centered on functional sub-stances in TCM quality,which comprehensively explained the scientific essence of TCM quality,and provided a theoretical foundation for determining"what to control"and"how to control"within the complex system of TCM components.Furthermore,through the ad-vanced informatization,digitization,and intelligent technologies,our team has conducted extensive research and construction practices on the intelligent transformation and digital upgrade of traditional Chinese medicine TCM)manufacturing processes.Ultimately,the establishment of a quality control system tailored specifically for TCM manufacturing with functional substances serving as the primary quality target,which presented an opportunity to solve the difficult problem of process quality control in TCM manufacturing.
4.Effect of Alcohol Extract of Oroxylum indicum on Reducing Uric Acid and Protecting Kidney in Hyperuricemia Mice
Mingke YIN ; Liang LI ; Yaozhong LYU ; Chenfeng ZHANG ; Zhenzhong WANG ; Wei XIAO
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(14):57-63
ObjectiveTo investigate the effect of alcohol extract of Oroxylum indicum (MHD-80) on reducing uric acid (UA) and protecting the kidney in the hyperuricemia (HUA) model in vivo. MethodPotassium oxazine (350 mg·kg-1) and adenine (80 mg·kg-1) were used to construct an HUA model of mice in vivo to evaluate the mechanism related to UA reduction and the protective effect of renal function of MHD-80. Seventy male ICR mice were randomly divided into seven groups, including the normal group, model group, allopurinol group (5 mg·kg-1), febusotan group (5 mg·kg-1), and MHD-80 low-, medium-, and high-dose groups (3, 6, 12 mg·kg-1), with 10 in each group. Except for the normal group, the other groups were given intragastric administration of potassium oxazine and adenine for 14 consecutive days to establish the HUA model. On the 8th to 14th day after modeling, each group was given corresponding drugs by intragastric administration, once a day. 1 h after the last administration, blood was collected from the eyeballs, and kidney and liver tissues of mice were collected. Serum levels of UA, urea nitrogen (BUN), and creatinine (Cr) and liver activity of xanthine oxidase (XOD) were determined by enzyme colorimetry. Serum contents of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were determined by enzyme-linked immunosorbent assay (ELISA). Hematoxilin-eosin (HE) staining was used to observe the pathological changes in kidney tissues. The protein expression levels of ATP-binding box transporter G2 (ABCG2) and glucose-facilitating transporter 9 (GLUT9) in kidney tissues were detected by Western blot. ResultIn vivo experiment shows that compared with the normal group, the serum levels of UA, Cr, BUN, inflammatory factors TNF-α, IL-1β, and liver XOD activity in the serum of mice in the model group were significantly increased (P<0.05, P<0.01), and the expression of GLUT9 in kidney tissues was significantly up-regulated (P<0.05). ABCG2 protein expression was significantly down-regulated (P<0.05), and renal injury was obvious. Compared with the model group, the levels of UA, BUN, Cr, TNF-α, IL-1β, and liver XOD activity in the serum of mice in the high-dose group of MHD-80 were decreased to different degrees (P<0.05, P<0.01), GLUT9 protein expression was significantly down-regulated (P<0.01), ABCG2 protein expression was significantly up-regulated (P<0.05) in the high-dose group of MHD-80, and the degree of renal injury was reduced. ConclusionMHD-80 has certain uric acid reduction, anti-inflammatory, and anti-renal injury effects, which are related to inhibiting XOD activity and regulating the expression of ABCG2 and GLUT9 uric acid transporter.
5.Preparation and Evaluation of Compound Nanxing Pain Relief Gel
Xuezhong SONG ; Lijing ZENG ; Ming YAN ; Yuan JI ; Chenfeng ZHANG ; Xin ZHANG ; Tuanjie WANG ; Wei XIAO ; Zhenzhong WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(7):2256-2265
Objective To prepare Compound Nanxing Pain Relief Gel(CNPRG)and evaluate its quality and sensitization.Methods CNPRG uses Carbopol 980 NF as the matrix;Appearance,viscosity,coating,centrifugal stability,cold stability,thermal stability as comprehensive indicators,single test and Box-Behnken effector method to optimize the prescription;The quality evaluation methods of appearance,pH,viscosity,stability,vapor phase identification of volatile components,and determination of diaconitine and eugenol content of CNPRG were preliminarily established;CNPRG sensitization was assessed by Active Cutaneous Anaphylaxis.Results The best prescription for CNPRG was Carbopol 980 NF 0.35 g,drug 1.02 g,glycerol 5.00 g,and pH 6.20.CNPRG ′s appearance likes jelly,is smooth,uniform and delicate;pH=6.20±0.03;viscosity 68.43±1.14 Pa·s;Centrifugation,high,low temperature stability,no stratification and precipitation;Identify camphor,(±)-Borneol and(±)-Isoborneol,Cinnamaldehyde,eugenol,phenol;Hypaconitine content 0.2983±0.0073 μg·g-1;Eugenol content 155.66±0.97 μg·g-1;CNPRG confirmed no sensitization.Conclusion CNPRG has good appearance,stable quality and no sensitization,and it can provide a choice for the development of new dosage forms of compound Nanxing pain relief cream to alleviate sensitization.
6.A retrospective study on the risk factors and time distribution of renal recurrence in lupus nephritis patients with long-term follow-up
Jingjing WANG ; Chenfeng JIAO ; Zhengzhao LIU ; Fan YANG ; Haitao ZHANG
Chinese Journal of Nephrology 2022;38(5):379-386
Objective:To explore the risk factors and time distribution of renal relapse in patients with lupus nephritis (LN).Methods:Clinical, pathological characteristics and long-term outcomes of LN patients who were diagnosed and followed in Jinling Hospital from January 2004 to December 2008 were retrospectively analyzed. The patients were divided into relapse group and non-relapse group. The differences of clinical pathological characteristics between the two groups were compared. The multivariate Cox proportion risk model was used to analyze the risk factors affecting renal relapse in LN. The risk factors and time distribution of renal relapse were analyzed with annual relapse risk-time curve.Results:A total of 814 patients with LN were included in the study, with 419 cases (51.5%) of complete remission and 395 cases (48.5%) of partial remission. The age was (30.24±10.90) years old, and there were 112 males (13.8%). There were 367 patients suffering renal relapse. The time of first renal relapse was (3.21±2.70) years. The results of multivariate Cox regression showed that age ( HR=0.976, 95% CI 0.966-0.986, P<0.001), renal pathological activity index (AI) score ( HR=1.039, 95% CI 1.013-1.065, P=0.003), remission status after induction treatment ( HR=0.671, 95% CI 0.504-0.894, P=0.006), 24 h urinary protein quantitation ( HR=1.297, 95% CI 1.115-1.508, P=0.001), anti-double strand DNA antibody (A-dsDNA, HR=1.450, 95% CI 1.139-1.846, P=0.003) and complement C3 ( HR=0.223, 95% CI 0.128-0.389, P<0.001) were correlated with increasing risk of renal relapse in LN. The annual relapse risk profile was unimodal, with a peak period of the second year after maintenance treatment. Similar patterns of relapse were presented in subgroup analysis. Conclusions:Age, renal pathological AI score, remission status after induction therapy, 24 h urine protein, A-dsDNA and blood complement C3 are the influencing factors for relapse of LN patients. The peak period of renal relapse in patients with LN is in the second year of maintenance therapy.
7.Research progress in cell transformation test and its application in cigarette smoke evaluation
Pingping SHANG ; Chenfeng HUA ; Xiang LI ; Junwei GUO ; Junwei ZHAO ; Ge ZHAO ; Sheng WANG ; Fuwei XIE
Journal of Public Health and Preventive Medicine 2020;31(4):23-27
In order to understand the current development of cell transformation assay (CTA) and its application in the evaluation of cigarette smoke carcinogenesis, the relevant literatures were analyzed and combed from these two aspects. CTA can evaluate the carcinogenicity of various genotoxic and non-genotoxic carcinogens in a short period of time, and has a strong consistency with the results of animal carcinogenic test. After malignant transformation, the cells show changes in cell morphology, immortalization of cells, disappearance of cell-cell contact inhibition, and the ability to form tumors when injected into animals. The identification methods of transformed cells include transformed cell focus count, agglutination test, soft agar culture and inoculation of nude mice, etc. At present, BALB/c 3T3 cells, Bhas 42 cells and SHE cells are the most widely used cells for CTA. Cigarette smoke is a complex aerosol containing a variety of non-genetic carcinogenic chemicals. Cell transformation tests are often used as an in vitro alternative method to evaluate the carcinogenic effects of cigarette smoke, which is different from the short-term genetic toxicity test. It simulates the long-term state of human smoking induced malignant transformation of cells, through the long-term exposure of cells for several decades, which is closer to the occurrence of cancer caused by human smoking. Therefore, CTA can evaluate the carcinogenicity of cigarette smoke and other tobacco products.
8.Light chain deposition disease after renal transplantation: a report of 2 cases and a review of literature
Chenfeng JIAO ; Feng XU ; Xuefeng NI ; Jinsong CHEN ; Bing YOU ; Wei WANG ; Jiqiu WEN
Chinese Journal of Organ Transplantation 2020;41(1):37-41
Objective:To report for the first time the clinicopathologic characteristics of two patients with light chain deposition disease after renal transplantation.Methods:The clinicopathologic features were analyzed for two patients with light chain deposition disease and the related literature was reviewed.Case 1 was a 49-year-old male with unknown primary disease presenting with abnormal urine test and elevated serum creatinine at 24 months after kidney transplantation. Renal allograft biopsy hinted at light chain deposition disease. Case 2 was a 38-year-old male with light chain deposition disease in native kidneys presenting with proteinuria, microscopic hematuria and elevated serum creatinine at 15 months after kidney transplantation. Renal allograft biopsy supported recurrent light chain deposition disease.Results:1 case after bortezomib and dexamethasone dosing, serum creatinine decreased during follow-ups. 1 case received bortezomib and dexamethasone. However, sepsis and pulmonary infections developed and allograft function deteriorated.Conclusions:Light chain deposition disease after renal transplantation is a rare disorder with a rapid progression and a poor prognosis. Early detection of free light chain in blood and urine through immune fixed electrophoresis is conducive to an early diagnosis. The efficacy of bortezomib is to be furthered examined.
9.Significance of precision medicine in pancreatic cancer per vention and treatme nt
Chinese Journal of Oncology 2016;38(3):161-164
The morbidity and mortality of pancreatic cancer has been increasing year by year, however, the treatment progress and prevention effect were minimal.With the development of basic research, especially the advances of gene sequencing technology, it was possible to clarify the etiology and pathogenesis of pancreatic cancer, and achieve the first stage prevention.The discovery of pancreatic cancer exosomes of high sensitivity and specificity made early diagnosis of pancreatic cancer ( the second stage prevention ) no longer a worldwide problem.The build of pancreatic cancer genotyping with clinical applicability made the precision treatment of pancreatic cancer ( the third stage prevention) possible.Thus, the precision medicine which is based on advances of gene sequencing , popularity of the Internet and the big data technology has brought a ray of hope for the prevention and treatment of pancreatic cancer.
10.Significance of precision medicine in pancreatic cancer per vention and treatme nt
Chinese Journal of Oncology 2016;38(3):161-164
The morbidity and mortality of pancreatic cancer has been increasing year by year, however, the treatment progress and prevention effect were minimal.With the development of basic research, especially the advances of gene sequencing technology, it was possible to clarify the etiology and pathogenesis of pancreatic cancer, and achieve the first stage prevention.The discovery of pancreatic cancer exosomes of high sensitivity and specificity made early diagnosis of pancreatic cancer ( the second stage prevention ) no longer a worldwide problem.The build of pancreatic cancer genotyping with clinical applicability made the precision treatment of pancreatic cancer ( the third stage prevention) possible.Thus, the precision medicine which is based on advances of gene sequencing , popularity of the Internet and the big data technology has brought a ray of hope for the prevention and treatment of pancreatic cancer.


Result Analysis
Print
Save
E-mail