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1.
Journal of Sun Yat-sen University(Medical Sciences) ; (6): 999-1007, 2023.
Article in Chinese | WPRIM | ID: wpr-998992

ABSTRACT

ObjectiveTo develop and validate a predictive risk model for vision-threatening diabetic retinopathy in patients with type 2 diabetes using readily accessible clinical data, which may provide a convenient and effective prediction tool for early identification and referral of at-risk populations. MethodsA nomogram model was developed using a dataset obtained from patients with T2DM who participated in the Guangzhou Diabetic Eye Study from November 2017 to December 2020. Logistic regression was used to construct the model, and model performance was evaluated using receiver operating characteristic curve, Hosmer-Lemeshow test, calibration curve and decision curve analysis. The model underwent internal validation through the mean AUC of k-fold cross-validation method, and further external validation was conducted in the Dongguan Eye Study. ResultsA total of 2 161 individuals were included in the model development dataset, of whom 135 (6.25%) people were diagnosed with VTDR. Age (P<0.001,OR=0.927,95%CI:0.898~0.957) and body mass index (P<0.001,OR =0.845,95%CI:0.821~0.932) were found to be negatively correlated with VTDR, whereas diabetes duration (P<0.001,OR=1.064,95%CI:1.035~1.094), insulin use (P =0.045,OR =1.534,95%CI:1.010~2.332), systolic blood pressure (P<0.001,OR =1.019,95%CI:1.008~1.029), glycated hemoglobin (P<0.001,OR =1.484,95%CI:1.341~1.643), and serum creatinine (P<0.001,OR =1.017,95%CI:1.010~1.023) were positively correlated with VTDR. All these variables were included in the model as predictors. The model showed strong discrimination in the development dataset with an area under the receiver operating characteristic curve (AUC) of 0.797 and in the external validation dataset (AUC 0.762). The Hosmer-Lemeshow test(P>0.05)and the calibration curve displayed good agreement. Decision curve analysis showed that the nomogram produced net benefit in the two datasets. ConclusionsIndependent factors influencing VTDR include age, duration of diabetes mellitus, insulin use, body mass index, systolic blood pressure, glycosylated hemoglobin, and serum creatinine. The nomogram constructed using these variables demonstrates a high degree of predictive validity. The model can serve as a valuable tool for early detection and referral of VTDR in primary care clinics. Therefore, its application and promotion are highly recommended.

2.
Cancer Research on Prevention and Treatment ; (12): 1066-1074, 2023.
Article in Chinese | WPRIM | ID: wpr-998953

ABSTRACT

Objective To explore the effect of KCNQ1OT1 gene knockout combined with bruceine D on the proliferation, migration, and invasion of breast cancer MDA-MB-231 cells. Methods Cell Counting Kit-8, wound healing, and Transwell invasion assay were used to detect the effects of bruceine D and siKCNQ1OT1 on the viability, migration, and invasion of MDA-MB-231 cells. Effect of bruceine D and siKCNQ1OT1 on the expression of KCNQ1OT1 in MDA-MB-231 cells was detected by qRT-PCR. Western blot was used to detect the effect of bruceine D and siKCNQ1OT1 on the expression of EMT-related proteins and CDC42, p-MKK7, MKK7 proteins in MDA-MB-231 cells. Results Bruceine D and siKCNQ1OT1 could significantly inhibit the viability, migration, and invasion of MDA-MB-231 cells, and the inhibitory effect was enhanced when they were combined (all P < 0.05); bruceine D downregulated the expression of KCNQ1OT1 in MDA-MB-231 cells (all P < 0.05); bruceine D combined with siKCNQ1OT1 significantly decreased CDC42, p-MKK7, N-cadherin, and Vimentin expression in MDA-MB-231 cells and increased the expression of E-cadherin (all P < 0.05). Conclusion Bruceine D combined with siKCNQ1OT1 significantly inhibit the proliferation, migration, invasion, and EMT of human breast cancer MDA-MB-231 cells, and its molecular mechanism may be related to the blocking of CDC42/MKK7 signaling pathway.

3.
Chinese Journal of Burns ; (6): 15-24, 2023.
Article in Chinese | WPRIM | ID: wpr-971145

ABSTRACT

Objective: To investigate the effects and mechanism of interleukin-4-modified gold nanoparticle (IL-4-AuNP) on the wound healing of full-thickness skin defects in diabetic mice. Methods: Experimental research methods were adopted. Gold nanoparticle (AuNP) and IL-4-AuNP were synthesized by improving the methods described in published literature. The morphology of those two particles were photographed by transmission electron microscopy, and their particle sizes were calculated. The surface potential and hydration particle size of the two particles were detected by nanoparticle potentiometer and particle size analyzer, respectively. The clearance rate of IL-4-AuNP to hydrogen peroxide and superoxide anion was measured by hydrogen peroxide and superoxide anion kits, respectively. Mouse fibroblast line 3T3 cells were used and divided into the following groups by the random number table (the same below): blank control group, hydrogen peroxide alone group treated with hydrogen peroxide only, hydrogen peroxide+IL-4-AuNP group treated with IL-4-AuNP for 0.5 h and then treated with hydrogen peroxide. After 24 h of culture, the reactive oxygen species (ROS) levels of cells were detected by immunofluorescence method; cell count kit 8 was used to detect relative cell survival rate. The macrophage Raw264.7 mouse cells were then used and divided into blank control group and IL-4-AuNP group that treated with IL-4-AuNP. After 24 h of culture, the expression of arginase 1 (Arg-1) in cells was observed by immunofluorescence method. Twelve male BALB/c mice (mouse age, sex, and strain, the same below) aged 8 to 10 weeks were divided into IL-4-AuNP group and blank control group, treated accordingly. On the 16th day of treatment, whole blood samples were collected from mice for analysis of white blood cell count (WBC), red blood cell count (RBC), hemoglobin level, or platelet count and the level of aspartate aminotransferase (AST), alanine transaminase (ALT), urea, or creatinine. The inflammation, bleeding, or necrosis in the heart, liver, spleen, lung, and kidney tissue of mice were detected by hematoxylin-eosin (HE). Another 36 mice were selected to make diabetic model, and the full-thickness skin defect wounds were made on the back of these mice. The wounds were divided into blank control group, AuNP alone group, and IL-4-AuNP group, with 12 mice in each group, and treated accordingly. On the 0 (immediately), 4th, 9th, and 15th day of treatment, the wound condition was observed and the wound area was calculated. On the 9th day of treatment, HE staining was used to detect the length of neonatal epithelium and the thickness of granulation tissue in the wound. On the 15th day of treatment, immunofluorescence method was used to detect ROS level and the number of Arg-1 positive cells in the wound tissue. The number of samples was 6 in all cases. Data were statistically analyzed with independent sample t test, corrected t test, Tukey test, or Dunnett T3 test. Results: The size of prepared AuNP and IL-4-AuNP were uniform. The particle size, surface potential, and hydration particle size of AuNP and IL-4-AuNP were (13.0±2.1) and (13.9±2.5) nm, (-45.8±3.2) and (-20.3±2.2) mV, (14±3) and (16±4) nm, respectively. For IL-4-AuNP, the clearance rate to hydrogen peroxide and superoxide anion were (69±4)% and (52±5)%, respectively. After 24 h of culture, the ROS level of 3T3 in hydrogen peroxide alone group was significantly higher than that in blank control group (q=26.12, P<0.05); the ROS level of hydrogen peroxide+IL-4-AuNP group was significantly lower than that in hydrogen peroxide alone group (q=25.12, P<0.05) and close to that in blank control group (P>0.05). After 24 h of culture, the relative survival rate of 3T3 cells in hydrogen peroxide+IL-4-AuNP group was significantly higher than that in hydrogen peroxide alone group (t=51.44, P<0.05). After 24 h of culture, Arg-1 expression of Raw264.7 cells in IL-4-AuNP group was significantly higher than that in blank control group (t'=8.83, P<0.05).On the 16th day of treatment, there were no significant statistically differences in WBC, RBC, hemoglobin level, or platelet count and the level of AST, ALT, urea, or creatinine of mice between blank control group and IL-4-AuNP group (P>0.05). No obvious inflammation, bleeding or necrosis was observed in the heart, liver, spleen, lung, and kidney of important organs in IL-4-AuNP group, and no significant changes were observed compared with blank control group. On the 0 and 4th day of treatment, the wound area of diabetic mice in blank control group, AuNP alone group, and IL-4-AuNP group had no significant difference (P>0.05). On the 9th day of treatment, the wound areas both in AuNP alone group and IL-4-AuNP group were significantly smaller than that in blank control group (with q values of 9.45 and 14.87, respectively, P<0.05), the wound area in IL-4-AuNP group was significantly smaller than that in AuNP alone group (q=5.42, P<0.05). On the 15th day of treatment, the wound areas both in AuNP alone group and IL-4-AuNP group were significantly smaller than that in blank control group (with q values of 4.84 and 20.64, respectively, P<0.05), the wound area in IL-4-AuNP group was significantly smaller than that in AuNP alone group (q=15.80, P<0.05); moreover, inflammations such as redness and swelling were significantly reduced in IL-4-AuNP group compared with the other two groups. On the 9th day of treatment, compared with blank control group and AuNP alone group, the length of neonatal epithelium in the wound of diabetic mice in IL-4-AuNP group was significantly longer (all P<0.05), and the thickness of the granulation tissue in the wound was significantly increased (with q values of 11.33 and 9.65, respectively, all P<0.05). On the 15th day of treatment, compared with blank control group, ROS levels in wound tissue of diabetic mice in AuNP alone group and IL-4-AuNP group were significantly decreased (P<0.05). On the 15th day of treatment, the number of Arg-1 positive cells in the wounds of diabetic mice in IL-4-AuNP group was significantly more than that in blank control group and AuNP alone group, respectively (all P<0.05). Conclusions: IL-4-AuNP is safe in vivo, and can improve the oxidative microenvironment by removing ROS and induce macrophage polarization towards M2 phenotype, thus promote efficient diabetic wound healing and regeneration of full-thickness skin defects in diabetic mice.


Subject(s)
Mice , Male , Animals , Interleukin-4 , Gold/pharmacology , Diabetes Mellitus, Experimental , Creatinine , Hydrogen Peroxide , Reactive Oxygen Species , Superoxides , Metal Nanoparticles , Soft Tissue Injuries , Antibodies , Inflammation , Necrosis , Hemoglobins
4.
Chinese Medical Journal ; (24): 1188-1197, 2023.
Article in English | WPRIM | ID: wpr-980904

ABSTRACT

BACKGROUND@#Pneumonia-like primary pulmonary lymphoma (PPL) was commonly misdiagnosed as infectious pneumonia, leading to delayed treatment. The purpose of this study was to establish a computed tomography (CT)-based radiomics model to differentiate pneumonia-like PPL from infectious pneumonia.@*METHODS@#In this retrospective study, 79 patients with pneumonia-like PPL and 176 patients with infectious pneumonia from 12 medical centers were enrolled. Patients from center 1 to center 7 were assigned to the training or validation cohort, and the remaining patients from other centers were used as the external test cohort. Radiomics features were extracted from CT images. A three-step procedure was applied for radiomics feature selection and radiomics signature building, including the inter- and intra-class correlation coefficients (ICCs), a one-way analysis of variance (ANOVA), and least absolute shrinkage and selection operator (LASSO). Univariate and multivariate analyses were used to identify the significant clinicoradiological variables and construct a clinical factor model. Two radiologists reviewed the CT images for the external test set. Performance of the radiomics model, clinical factor model, and each radiologist were assessed by receiver operating characteristic, and area under the curve (AUC) was compared.@*RESULTS@#A total of 144 patients (44 with pneumonia-like PPL and 100 infectious pneumonia) were in the training cohort, 38 patients (12 with pneumonia-like PPL and 26 infectious pneumonia) were in the validation cohort, and 73 patients (23 with pneumonia-like PPL and 50 infectious pneumonia) were in the external test cohort. Twenty-three radiomics features were selected to build the radiomics model, which yielded AUCs of 0.95 (95% confidence interval [CI]: 0.94-0.99), 0.93 (95% CI: 0.85-0.98), and 0.94 (95% CI: 0.87-0.99) in the training, validation, and external test cohort, respectively. The AUCs for the two readers and clinical factor model were 0.74 (95% CI: 0.63-0.83), 0.72 (95% CI: 0.62-0.82), and 0.73 (95% CI: 0.62-0.84) in the external test cohort, respectively. The radiomics model outperformed both the readers' interpretation and clinical factor model ( P <0.05).@*CONCLUSIONS@#The CT-based radiomics model may provide an effective and non-invasive tool to differentiate pneumonia-like PPL from infectious pneumonia, which might provide assistance for clinicians in tailoring precise therapy.


Subject(s)
Humans , Retrospective Studies , Pneumonia/diagnostic imaging , Analysis of Variance , Tomography, X-Ray Computed , Lymphoma/diagnostic imaging
5.
Chinese Journal of Surgery ; (12): 675-680, 2023.
Article in Chinese | WPRIM | ID: wpr-985797

ABSTRACT

Objective: To explore the long-term effect of combined surgery for the treatment of congenital tibial pseudarthrosis in children. Methods: The clinical data of 44 children with congenital tibial pseudarthrosis who underwent combined surgery (tibial pseudarthrosis tissue resection, intramedullary rod fixation, wrapped autologous iliac bone graft, Ilizarov external fixator fixation) from August 2007 to October 2011 at the Department of Pediatric Orthopedics, Hunan Children's Hospital were collected. There were 33 males and 11 females. The age at the time of surgery was (3.7±2.2)years (range:0.6 to 12.4 years), including 25 cases under 3 years old and 19 cases above 3 years old.Among them, 37 cases were complicated with neurofibromatosis type 1.The operation status, postoperative complications and follow-up results were recorded. Results: The follow-up time after surgery was (10.9±0.7)years (range:10 to 11 years).Thirty-nine out of 44 patients (88.6%) achieved initial healing of tibial pseudarthrosis, with an average healing time of (4.3±1.1)months (range:3 to 10months).In the last follow-up, 36 cases (81.8%) had unequal tibial length, 20 cases (45.4%) had refractures, 18 cases (40.9%) had ankle valgus, 9 cases (20.4%) had proximal tibial valgus, and 11 cases (25.0%) had high arched feet.Nine cases (20.4%) developed distal tibial epiphyseal plate bridging.17 cases (38.6%) had abnormal tibial mechanical axis.Seven cases (15.9%) developed needle infection, and one case (2.3%) developed tibial osteomyelitis. 21 patients (47.7%) had excessive growth of the affected femur.Five patients (11.3%) had ankle stiffness, and 34 patients (77.2%) had intramedullary rod displacement that was not in the center of the tibial medullary cavity.Among them, 8 cases (18.1%) protruded the tibial bone cortex and underwent intramedullary rod removal.18 children have reached skeletal maturity, while 26 children have not been followed up until skeletal maturity. Conclusion: Combined surgery for the treatment of congenital pseudarthrosis of the tibia in children has a high initial healing rate, but complications such as unequal tibia length, refracture, and ankle valgus occur during long-term follow-up, requiring multiple surgical treatments.

6.
China Journal of Chinese Materia Medica ; (24): 1568-1577, 2023.
Article in Chinese | WPRIM | ID: wpr-970629

ABSTRACT

A gas chromatography-triple quadrupole mass spectrometry(GC-MS) method was established for the simultaneous determination of eleven volatile components in Cinnamomi Oleum and the chemical pattern recognition was utilized to evaluate the quality of essential oil obtained from Cinnamomi Fructus medicinal materials in various habitats. The Cinnamomi Fructus medicinal materials were treated by water distillation, analyzed using GC-MS, and detected by selective ion monitoring(SIM), and the internal standards were used for quantification. The content results of Cinnamomi Oleum from various batches were analyzed by hierarchical clustering analysis(HCA), principal component analysis(PCA), and orthogonal partial least squares-discriminant analysis(OPLS-DA) for the statistic analysis. Eleven components showed good linear relationships within their respective concentration ranges(R~2>0.999 7), with average recoveries of 92.41%-102.1% and RSD of 1.2%-3.2%(n=6). The samples were classified into three categories by HCA and PCA, and 2-nonanone was screened as a marker of variability between batches in combination with OPLS-DA. This method is specific, sensitive, simple, and accurate, and the screened components can be utilized as a basis for the quality control of Cinnamomi Oleum.


Subject(s)
Gas Chromatography-Mass Spectrometry , Plant Oils , Oils, Volatile , Drugs, Chinese Herbal/analysis , Cluster Analysis
7.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 134-141, 2023.
Article in Chinese | WPRIM | ID: wpr-969608

ABSTRACT

ObjectiveTo observe the effect of Huangqi Baihe granules on the hypoxia-inducible factor 1α (HIF-1α)/nuclear factor-κB (NF-κB)/NOD-like receptor hot protein domain related protein 3 (NLRP3) signaling pathway in a rat model of high altitude hypoxia. MethodSixty male SPF SD rats were randomly divided into blank group, model group, dexamethasone group (5 mg·kg-1), and high, middle, and low-dose groups of Huangqi Baihe granules (4.1, 2.05, 1.025 g·kg-1). Among them, each Chinese medicine group was administrated orally for continuously 14 d, once a day, and the dexamethasone group was injected intraperitoneally for continuously 3 d as the positive control group. On the 15th d, the model group, dexamethasone group, and high, middle, and low dose groups of Huangqi Baihe granules were exposed to the simulated high altitude, low pressure, and low oxygen environment in the animal low-pressure simulation cabin, and the exposure lasted for 3 d. Blood was collected from the abdominal aorta and serum was separated, and the brain tissue was taken after being killed. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in brain tissue. Enzyme-linked immunosorbent assay (ELISA) was used to detect the content of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in rat serum. Western blot was used to detect HIF-1α, NLRP3, phosphorylated nuclear factor-κB (p-NF-κB), NF-κB, desquamation D (GSDMD), and cysteine aspartate-specitis protein-1(Caspase-1) in rats of each group. The mRNA expression levels of HIF-1α, NLRP3, NF-κB p65, GSDMD, and Caspase-1 were detected by real-time quantitative polymerase chain reaction (Real-time PCR). ResultThe results of HE staining showed that as compared with the normal group, the pathological sections of brain tissues in the model group showed that pyramidal cells were loosely arranged and distributed in disorder, with different sizes. Compared with the model group, the pathological changes in pyramidal cells in the dexamethasone group and high and middle-dose groups of Huangqi Baihe granules were reduced. The results of ELISA showed that as compared with the normal group, the content of TNF-α, IL-6, and IL-1β in the serum of rats in the model group was significantly higher (P<0.01). Compared with the model group, the content of TNF-α, IL-6, and IL-1β in the serum of rats in the dexamethasone group and high and middle-dose groups of Huangqi Baihe granules decreased significantly (P<0.05, P<0.01). The results of Western blot showed that as compared with the normal group, the relative protein expression levels of HIF-1α, NLRP3, p-NF-κB p65, GSDMD, and Caspase-1 in the brain tissue of the model group were significantly higher (P<0.01). As compared with the model group, the relative expressions of HIF-1α, NLRP3, p-NF-κB p65, GSDMD, and Caspase-1 in the brain tissue of rats in the dexamethasone group and the high-dose group of Huangqi Baihe granules were significantly decreased (P<0.05, P<0.01). The relative protein expression levels of HIF-1α, NLRP3, p-NF-κB p65, and Caspase-1 in the brain tissue of rats in the middle-dose group of Huangqi Baihe granules decreased significantly (P<0.01), and the relative protein expression of HIF-1α in the brain tissue of rats in the low-dose group of Huangqi Baihe granules was reduced (P<0.05). The Real-time PCR analysis showed that as compared with the normal group, the mRNA expression levels of HIF-1α, NLRP3, NF-κB p65, GSDMD, and Caspase-1 in the brain tissue of the model group were significantly increased (P<0.01). As compared with the model group, the mRNA expression levels of HIF-1α, NLRP3, NF-κB p65, GSDMD, and Caspase-1 in the brain tissue of rats in the dexamethasone group were significantly decreased (P<0.01). The mRNA expression levels of HIF-1α, NF-κB p65, GSDMD, and Caspase-1 in the brain tissue of rats in the high-dose group of Huangqi Baihe granules decreased significantly (P<0.01). The mRNA expression levels of HIF-1α, NLRP3, and Caspase-1in the brain tissue of rats in the middle-dose group of Huangqi granules decreased (P<0.05, P<0.01). ConclusionThe protective effect of Huangqi Baihe granules on acute brain injury in low-pressure hypoxic rats may be related to the HIF-1α/NF-κB/NLRP3 signaling pathway.

8.
China Journal of Chinese Materia Medica ; (24): 3623-3632, 2023.
Article in Chinese | WPRIM | ID: wpr-981493

ABSTRACT

In the present study, the contents of seven active components [genipinic acid(GA), protocatechuic acid(PCA), neochlorogenic acid(NCA), chlorogenic acid(CA), cryptochlorogenic acid(CCA),(+)-pinoresinol di-O-β-D-glucopyranosid(PDG), and(+)-pinoresinol 4'-O-β-D-glucopyranoside(PG)] of Eucommiae Cortex in aortic vascular endothelial cells of spontaneously hypertensive rats(SHR) were simultaneously determined by ultra-high liquid chromatography-triple quadrupole mass spectrometry(UPLC-MS/MS). The qualified SHR models were selected. The primary aortic endothelial cells(VECs) of rats were separated and cultured by ligation and adherence, followed by subculture. After successful identification, an UPLC-MS/MS method for simultaneously determining the contents of GA, PCA, NCA, CA, CCA, PDG, PG in seven components of Eucommiae Cortex in VECs was established, including specificity, linearity, matrix effect, recovery, accuracy, precision and stability. The established method had the lo-west limit of quantification of 0.97-4.95 μg·L~(-1), accuracy of 87.26%-109.6%, extraction recovery of 89.23%-105.3%, matrix effect of 85.86%-106.2%, and stability of 86.00%-112.5%. Therefore, the established accurate UPLC-MS/MS method could rapidly and simultaneously determine the contents of the seven active components of Eucommiae Cortex in VECs of SHRs, which provided a refe-rence for the study of cellular pharmacokinetics of active components of Eucommiae Cortex extract.


Subject(s)
Rats , Animals , Rats, Inbred SHR , Chromatography, Liquid , Chromatography, High Pressure Liquid/methods , Endothelial Cells , Tandem Mass Spectrometry/methods
9.
China Journal of Chinese Materia Medica ; (24): 3516-3534, 2023.
Article in Chinese | WPRIM | ID: wpr-981484

ABSTRACT

Ultra-high performance liquid chromatography-quadrupole-Exactive Orbitrap high resolution mass spectrometry(UHPLC-Q-Exactive Orbitrap HRMS) was employed to systematically analyze the chemical constituents in Lysionoti Herba, and high perfor-mance liquid chromatography-ultraviolet(HPLC-UV) to determine the content of main compounds. A Synergi~(TM) Hydro-RP 100 Å colu-mn(2 mm×100 mm, 2.5 μm) was used for gradient elution with acetonitrile-0.1% aqueous formic acid as the mobile phase at a flow rate of 0.2 mL·min~(-1) and a column temperature of 40 ℃. MS and MS/MS were conducted with electrospray ionization(ESI) in both positive and negative modes. The chemical components in Lysionoti Herba were identified by comparison with the retention time and mass spectra of reference compounds and the relevant mass spectral data reported in MS databases and relevant literature. Furthermore, the content of five constituents(neochlorogenic acid, chlorogenic acid, forsythoside B, acteoside, and nevadensin) in different Lysiono-ti Herba samples was simultaneously determined by HPLC-UV at the wavelength of 330 nm. A total of 84 compounds were identified in Lysionoti Herba, including 27 flavonoids, 20 phenylethanoid glycosides, 5 amino acids, 18 organic acids, 1 alkaloid, 6 nucleosides, and 7 others. The content of neochlorogenic acid, chlorogenic acid, forsythoside B, acteoside, and nevadensin showed good linear relationship(r>0.999) with the peak area within certain concentration ranges, which were 3.22-102.90, 12.84-410.82, 31.63-1 012.01, 25.00-800.11, and 4.08-130.51 μg·mL~(-1), respectively. The instrument precision, method repeatability, and solution stability all met requirement, and the average recovery rate was 97.31%-100.2%, with RSD ranging from 0.95% to 2.4%. The content of the five components varied among different Lysionoti Herba samples collected from different regions of Guizhou, and the average content of forsythoside B was the highest. The established qualitative method can rapidly and efficiently identify the chemical components of Lysionoti Herba, and the developed HPLC-UV method can simultaneously determine the content of five components in a simple, ra-pid, and accurate manner, providing a scientific basis for the quality evaluation of Lysionoti Herba.


Subject(s)
Chromatography, High Pressure Liquid/methods , Tandem Mass Spectrometry/methods , Chlorogenic Acid , Drugs, Chinese Herbal/chemistry
10.
International Journal of Traditional Chinese Medicine ; (6): 739-743, 2022.
Article in Chinese | WPRIM | ID: wpr-954380

ABSTRACT

Objective:To evaluate the efficacy of Zhongfeng Xingnao liquid combined with conventional treatment for acute ischemic stroke (AIS).Methods:A total of 92 patients with AIS in our hospital from May 2020 to March 2021 who met the inclusion criteria were selected and divided into 2 groups according to the end number of the medical records, with 46 cases in each group. Both groups were given conventional western medicine therapy, and the control group added intravenous drip of edaravone injection, and the study group added Zhongfeng Xingnao liquid on the basis of the control group. Both groups were treated continuously for 2 weeks. Before and after treatment, the National Institutes of Health Stroke Scale (NIHSS) and the modified Rankin Scale (mRS) were used to evaluate the degree of neurological deficit and prognosis. The whole blood high-shear viscosity, hematocrit, whole blood low-shear viscosity, fibrinogen were detected by automatic blood rheometer, and the levels of high-sensitivity C-reactive protein (hs-CRP), IL-6 and endothelin-1 (ET-1) were detected by ELISA. Adverse events were recorded, and clinical effect rate was evaluated.Results:After treatment, the mRS score (2.06±0.18 vs. 2.73±0.23, t=15.56) and NIHSS score (5.25±2.36 vs. 10.61±2.48, t=14.58) of the study group were significantly lower than those in the control group ( P<0.01). The total clinical effective rate was 89.1% (41/46) in the study group and 69.6% (32/46) in the control group, with a statistically significant difference between the two groups ( χ2=5.37, P=0.020). After treatment, the serum levels of hs-CRP [(9.04±1.98)mg/L vs. (14.36±2.09)mg/L, t=12.57], IL-6 [(23.14±1.46)ng/L vs. (39.37±2.51)ng/L, t=12.39] and ET-1[(67.18±13.22)ng/L vs. (98.14±22.29)ng/L, t=19.37] in the study group were significantly lower than those in the control group ( P<0.01). The whole blood high shear viscosity [(7.53± 1.37)mPa·s vs. (9.24±1.42)mPa·s, t=5.89], hematocrit [(0.27±0.06)% vs. (0.39±0.08)%, t=8.14], whole blood low shear viscosity [(5.92±1.09)mPa·s vs. (8.35±1.24)mPa·s, t=9.98] and fibrinogen [(1.63±0.42) g/L vs. (2.47±0.58) g/L, t=7.96] were significantly lower than those in the control group ( P<0.01). During the treatment period, the incidence of adverse events was 8.70% (4/46) in the control group and 15.22% (7/46) in the study group, and there was no significant difference between the two groups ( χ2=0.93, P=0.335). After treatment, the good outcome rate was 73.9% (34/46) in the control group and 93.5% (43/46) in the study group, with a statistically significant difference between the two groups ( χ2=6.45, P=0.011). Conclusion:The Zhongfeng Xingnao liquid combined with edaravone injection can reduce the level of inflammatory cytokines in patients with AIS, improve hemorheological indicators, and play a role in brain protection.

11.
Acta Pharmaceutica Sinica B ; (6): 867-875, 2022.
Article in English | WPRIM | ID: wpr-929331

ABSTRACT

In recent years, fibroblast activation protein (FAP) has emerged as an attractive target for the diagnosis and radiotherapy of cancers using FAP-specific radioligands. Herein, we aimed to design a novel 18F-labeled FAP tracer ([18F]AlF-P-FAPI) for FAP imaging and evaluated its potential for clinical application. The [18F]AlF-P-FAPI novel tracer was prepared in an automated manner within 42 min with a non-decay corrected radiochemical yield of 32 ± 6% (n = 8). Among A549-FAP cells, [18F]AlF-P-FAPI demonstrated specific uptake, rapid internalization, and low cellular efflux. Compared to the patent tracer [18F]FAPI-42, [18F]AlF-P-FAPI exhibited lower levels of cellular efflux in the A549-FAP cells and higher stability in vivo. Micro-PET imaging in the A549-FAP tumor model indicated higher specific tumor uptake of [18F]AlF-P-FAPI (7.0 ± 1.0% ID/g) compared to patent tracers [18F]FAPI-42 (3.2 ± 0.6% ID/g) and [68Ga]Ga-FAPI-04 (2.7 ± 0.5% ID/g). Furthermore, in an initial diagnostic application in a patient with nasopharyngeal cancer, [18F]AlF-P-FAPI and [18F]FDG PET/CT showed comparable results for both primary tumors and lymph node metastases. These results suggest that [18F]AlF-P-FAPI can be conveniently prepared, with promising characteristics in the preclinical evaluation. The feasibility of FAP imaging was demonstrated using PET studies.

12.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 57-63, 2022.
Article in Chinese | WPRIM | ID: wpr-940420

ABSTRACT

ObjectiveTo investigate the effect of Guiqi Baizhu prescription (GQBZ) combined with oxaliplatin on the expression of epidermal growth factor receptor (EGFR) and vascular endothelial growth factor receptor-2 (VEGFR2) and angiogenesis in gastric cancer-bearing mice. MethodThe tumor-bearing model of gastric cancer was induced in Kunming mice. The mice were randomly divided into blank group, model group, oxaliplatin group (10 mg·kg-1), and high- (17.68 g·kg-1), medium- (8.84 g·kg-1), and low-dose (4.42 g·kg-1) combination groups (GQBZ combined with oxaliplatin). After the last administration, the transplanted tumor was collected and the tumor inhibition rate was calculated. Hematoxylin-eosin (HE) staining was used to observe the morphological changes of tumor tissues. Enzyme-linked immunosorbent assay (ELISA) was used to detect the serum content of epidermal growth factor (EGF), interleukin-8 (IL-8), and vascular endothelial growth factor (VEGF). Western blot and immunohistochemistry (IHC) were used to detect the expression of EGFR, phosphorylated EGFR (p-EGFR), VEGFR2, phosphorylated VEGFR2 (p-VEGFR2), and platelet-endothelial cell adhesion molecule (CD31). Real-time fluorescence-based quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression of EGFR and VEGFR2. ResultThe tumor weight in the drug intervention groups was significantly lower than that in the model group (P<0.01). Compared with the oxaliplatin group, the high- and medium-dose combination groups showed reduced tumor weight (P<0.05, P<0.01). The tumor cells in the model groups were high in cell density and regular in shape, and no clear tissue necrosis was seen. The tumor cell density in the drug intervention groups was reduced, and clear tissue necrosis and large-scale inflammatory cells were visible. Compared with the blank group, the model group and the drug intervention groups showed increased serum levels of EGF, VEGF, and IL-8 (P<0.05, P<0.01). Compared with the model group, the drug intervention groups showed decreased serum levels of EGF, VEGF, and IL-8 (P<0.01), reduced protein expression of EGFR, p-EGFR, VEGFR2, p-VEGFR2, and CD31, and declining mRNA expression of EGFR and VEGFR (P<0.01). Compared with the oxaliplatin group, the high- and medium-dose combination groups showed decreased serum levels of EGF, VEGF, and IL-8 (P<0.05, P<0.01), reduced protein expression of EGFR, p-EGFR, VEGFR2, p-VEGFR2, and CD31, and dwindled mRNA expression of EGFR and VEGFR2 (P<0.05, P<0.01). The low-dose combination group showed decreased serum levels of EGF, VEGF, and IL-8, reduced protein expression of EGFR, p-EGFR, VEGFR2, p-VEGFR2, and CD31, and dwindled mRNA expression of EGFR and VEGFR2, but the difference was not statistically significant. ConclusionGQBZ combined with oxaliplatin can inhibit the growth and angiogenesis of tumor tissues in gastric cancer-bearing mice by affecting the expression of EGFR and VEGFR2.

13.
Acta Pharmaceutica Sinica B ; (6): 3177-3186, 2022.
Article in English | WPRIM | ID: wpr-939949

ABSTRACT

Hepatocellular carcinoma (HCC) is a common malignant tumor with poor prognosis and high mortality. In this study, we demonstrated a novel vaccine targeting HCC and tumor neovascular endothelial cells by fusing recombinant MHCC97H cells expressing porcine α-1,3-galactose epitopes (αGal) and endorphin extracellular domains (END) with dendritic cells (DCs) from healthy volunteers. END+/Gal+-MHCC97H/DC fusion cells induced cytotoxic T lymphocytes (CTLs) and secretion of interferon-gamma (IFN-γ). CTLs targeted cells expressing αGal and END and tumor angiogenesis. The fused cell vaccine can effectively inhibit tumor growth and prolong the survival time of human hepatoma mice, indicating the high clinical potential of this new cell based vaccine.

14.
China Journal of Chinese Materia Medica ; (24): 692-700, 2022.
Article in Chinese | WPRIM | ID: wpr-927952

ABSTRACT

The present study established the ultra-high performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) method for simultaneous determination of the content of eight major active components in Caesalpinia decapetala and performed the quality evaluation of C. decapetala from different habitats with the chemical pattern recognition. The analysis was carried out on a Waters BEH C_(18) column(2.1 mm×100 mm, 1.7 μm) at 40 ℃, with the mobile phase of water containing 0.1% formic acid(A) and acetonitrile containing 0.1% formic acid under gradient elution, the flow rate of 0.3 mL·min~(-1), and the injection volume of 1 μL. The electrospray ionization(ESI) source in the negative mode and multiple reaction monitoring(MRM) were used for MS quantitative analysis. The content results were analyzed by the hierarchical cluster analysis(HCA) and principal component analysis(PCA) for the evaluation of the quality difference. Eight components showed good linear relationships within their respective concentration ranges(r>0.999), with the average recoveries of 96.85%-103.4% and RSD of 0.52%-2.8%. The analysis results showed that the quality of samples from different batches was different. The samples were classified into three clusters by HCA and PCA. The method is simple, sensitive, accurate, and efficient, and can be used for the quality evaluation of C. decapetala.


Subject(s)
Caesalpinia , Chromatography, High Pressure Liquid , Chromatography, Liquid , Principal Component Analysis , Tandem Mass Spectrometry
15.
China Pharmacy ; (12): 1165-1171, 2022.
Article in Chinese | WPRIM | ID: wpr-924067

ABSTRACT

OBJECTIVE To identify an d analyze chemical cons tituents of Pleione yunnanensis with origin of Pleione yunnanensis. METHODS UPLC-Q-Exactive-Plus-Orbitrap-MS was adopted. The determination was performed on Hyperdil GOLD column with mobile phase consisted of 0.1% formic acid solution-0.1% formic acid acetonitrile solution (gradient elution )at the flow rate of 0.3 mL/min. The column temperature was set at 40 ℃,and sample size was 2 µL. The electrospray ion source was adopted,and the scanning range was m/z 100-1 500,and the scanning mode was positive and negative ion exchange mode of full scan+ddMS2. The structure of chemical constituents were determined by using Compound Discoverer 3.1 software,comparing with mzCloud,PubChem network database and OTCML ,on the basis of reference substance and published literatures. RESULTS & CONCLUSIONS A total of 42 chemical constituents were identified (positive ion mode has 24,negative ion mode has 27), including 13 benzyl succinate glycosides (such as dactylorhin C ,coelovirin A ,militarine),4 phenol glycosides (such as adenosine , guanosine,gastrodin),3 alkaloids(choline,betaine,berberine),and one flavonoid (nobiletin),7 aromatics(such as DL-lysine , DL-arginine,DL-glutamine),one sugar (sucrose),3 benzenes(shancigusin H ,shancigusin H isomer ,batatasin Ⅲ)and 10 others (such as p-methoxybenzoic acid ,monomethyl dodecanedioate ,diphenylamine). Glucose oxybenzyl and some small mole cules are easy to be lost in the cleavage of benzyl succinate glycosides;glycosyl is easy to be lost in the cleavage of phenol glycosides;the cleavage of alkaloids mainly manifest as the cleavage and loss of small molecular substituents ;demethyla- tion reaction is occurred in most flavonoids.

16.
Chinese Journal of Endocrine Surgery ; (6): 85-88, 2021.
Article in Chinese | WPRIM | ID: wpr-882716

ABSTRACT

Objective:To detect the expression and methylation of TIA1 in breast cancer and to study its correlation with multi-slice spiral CT signs.Methods:50 patients with breast cancer were collected from Feb.2019 to Mar. 2020. The expression levels of TIA1 in breast cancer tissues and in peritumoral tissues were estimated by quantitative real-time polymerase chain reaction. Bioinformatics software MethPrimer was used for predicting TIA1 promotor and confirmed the existence of cPG island. Methylation-specific PCR (MSP) was performed to detect TIA1 DNA promoter methylation. All patients were examined by multi-slice CT. CT images were analyzed through observing the tumor size, shape, calcification area, lymph node metastasis and margin. The correlation between CT signs and TIA1 methylation status was further analyzed.Results:The expression levels of TIA1 in breast cancer tissues were lower than in peritumoral tissues (0.50±0.12, 0.95±0.10, P=0.00) , while TIA1 DNA promoter methylation rate was higher than in peritumoral tissues (64%, 42%, χ2=4.86, P<0.05) .There were no significant differences in TIA1 DNA promoter methylation rate among patients with different tumor shape and micro calcifications. TIA1 DNA promoter methylation rate in patients with mass diameter≥2 cm were significantly higher than those in patients with mass diameter<2 cm (78.57%, 45.45%, P<0.05) , and TIA1 DNA promoter methylation rate in patients with lymph node metastasis was higher than those without lymph node metastasis (79.17%, 50%, P<0.05) . TIA1 DNA promoter methylation rate in patients with burr at edge of mass was higher than those without burr at edge of mass (80.77%, 45.83%, P<0.05) . Conclusion:There is a correlation between CT imaging signs and TIA1 DNA promoter methylation rate in patients with breast cancer, which can provide more reference for the judgment of malignant degree and prognosis of patients with breast cancer.

17.
International Journal of Traditional Chinese Medicine ; (6): 246-249, 2021.
Article in Chinese | WPRIM | ID: wpr-882578

ABSTRACT

Objective:To evaluate the clinical efficacy of self-made Liangxue-Qingfei Decoction combined with conventional western medicine in the treatment of rosacea with excessive heat in lung and stomach. Methods:312 patients with rosacea in Longfu hospital from May 2017 to May 2019 were selected and randomly divided into two groups, 156 cases in each group. The control group was treated with Doxycyclane Hyclate Tablets combined with Metronidazole Gel The study group was additionally given self-made Liangxue-Qingfei Decoction on the basis of the control group. Both groups were treated for 4 weeks. Dermatology Life Quality Index (DLQI) was evaluated . The erythema index (EI) of lesion area was measured by multi-functional skin tester. The adverse reactions during the treatment were recorded and the clinical efficacy was evaluated. Results:The total effective rate was 80.8% (126/156) in the study group and 66.7% (104/156) in the control group, with statistically significance ( χ2=8.012, P=0.005). After the treatment, the scores of physiology, psychology, family, social activities, interpersonal and occupational restrictionsin, and treatment in the study group were lower than those in the control group ( t=17.942, 15.794, 19.465, 21.586, 31.375, 27.472, P<0.001); EI (619.69 ± 71.53 vs. 822.97 ± 89.47, t=32.348) was lower than that of the control group ( P<0.01). During the treatment, the incidence of adverse reactions was 4.5% (7/156) in the control group and 5.8% (9/156) in the study group, and there was no significant difference between the two groups ( χ2=0.439, P=0.514). Conclusion:The self-made Liangxue-Qingfei Decoction combined with routine western medicine therapy can effectively improve the clinical symptoms and quality of life of rosacea patients with lung and stomach excessive heat, improve the clinical efficacy with safety.

18.
Chinese Journal of Natural Medicines (English Ed.) ; (6): 295-304, 2021.
Article in English | WPRIM | ID: wpr-881072

ABSTRACT

In this study, a high performance thin-layer chromatography/single quadrupole mass spectrometry QDa (HPTLC-QDa) method for robust authentication of Ganoderma lucidum, a popular and valuable herbal medicine, has been developed. This method is simple and practical, which allows direct generation of characteristic mass spectra from the HPTLC plates automatically with the application of in situ solvent desorption interface. The HPTLC silica gel plates were developed with toluene-ethyl formate-formic acid (5 : 5 : 0.2, V/V) and all bands were transferred to QDa system directly in situ using 80% methanol with 0.1% formic acid as desorption solvent. The acquired HPTLC-QDa spectra showed that luminous yellow band b3, containing ganoderic acid B/G/H and ganodeneric acid B, the major active components of Ganoderma, could be found only in G. lucidum and G. lucidum (Antler-shaped), but not in G. sinense and G. applanatum. Moreover, bands b13 and b14 with m/z 475/477 and m/z 475/491/495, respectively, could be detected in G. lucidum (Antler-shaped), but not in G. lucidum, thus allowing simple and robust authentication of G. lucidum with confused species. This method is proved to be simple, practical and reproducible, which can be extended to analyze other herbal medicines.

19.
Chinese Journal of Lung Cancer ; (12): 305-322, 2021.
Article in Chinese | WPRIM | ID: wpr-880262

ABSTRACT

"The Expert Group on Tumor Ablation Therapy of Chinese Medical Doctor Association, The Tumor Ablation Committee of Chinese College of Interventionalists, The Society of Tumor Ablation Therapy of Chinese Anti-Cancer Association and The Ablation Expert Committee of the Chinese Society of Clinical Oncology" have organized multidisciplinary experts to formulate the consensus for thermal ablation of pulmonary subsolid nodules or ground-glass nodule (GGN). The expert consensus reviews current literatures and provides clinical practices for thermal ablation of GGN. The main contents include: (1) clinical evaluation of GGN, (2) procedures, indications, contraindications, outcomes evaluation and related complications of thermal ablation for GGN and (3) future development directions.
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20.
Chinese Journal of Biotechnology ; (12): 2127-2146, 2021.
Article in Chinese | WPRIM | ID: wpr-887786

ABSTRACT

Streptomyces are major sources of bioactive natural products. Genome sequencing reveals that Streptomyces have great biosynthetic potential, with an average of 20-40 biosynthetic gene clusters each strain. However, most natural products from Streptomyces are produced in low yields under regular laboratory cultivation conditions, which hamper their further study and drug development. The production of natural products in Streptomyces is controlled by the intricate regulation mechanisms. Manipulation of the regulatory systems that govern secondary metabolite production will strongly facilitate the discovery and development of natural products of Streptomyces origin. In this review, we summarize progresses in pathway-specific regulators from Streptomyces in the last five years and highlight their role in improving the yields of corresponding natural products.


Subject(s)
Biological Products , Multigene Family , Secondary Metabolism , Streptomyces/genetics
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