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1.
Acta Physiologica Sinica ; (6): 125-133, 2022.
Article in English | WPRIM | ID: wpr-927588

ABSTRACT

Captopril can have nephrotoxic effects, which are largely attributed to accumulated renin and "escaped" angiotensin II (Ang II). Here we test whether angiotensin converting enzyme-1 (ACE1) inhibition damages kidneys via alteration of renal afferent arteriolar responses to Ang II and inflammatory signaling. C57Bl/6 mice were given vehicle or captopril (60 mg/kg per day) for four weeks. Hypertension was obtained by minipump supplying Ang II (400 ng/kg per min) during the second 2 weeks. We assessed kidney histology by periodic acid-Schiff (PAS) and Masson staining, glomerular filtration rate (GFR) by FITC-labeled inulin clearance, and responses to Ang II assessed in afferent arterioles in vitro. Moreover, arteriolar H2O2 and catalase, plasma renin were assayed by commercial kits, and mRNAs of renin receptor, transforming growth factor-β (TGF-β) and cyclooxygenase-2 (COX-2) in the renal cortex, mRNAs of angiotensin receptor-1 (AT1R) and AT2R in the preglomerular arterioles were detected by RT-qPCR. The results showed that, compared to vehicle, mice given captopril showed lowered blood pressure, reduced GFR, increased plasma renin, renal interstitial fibrosis and tubular epithelial vacuolar degeneration, increased expression of mRNAs of renal TGF-β and COX-2, decreased production of H2O2 and increased catalase activity in preglomerular arterioles and enhanced afferent arteriolar Ang II contractions. The latter were blunted by incubation with H2O2. The mRNAs of renal microvascular AT1R and AT2R remained unaffected by captopril. Ang II-infused mice showed increased blood pressure and reduced afferent arteriolar Ang II responses. Administration of captopril to the Ang II-infused mice normalized blood pressure, but not arteriolar Ang II responses. We conclude that inhibition of ACE1 enhances renal microvascular reactivity to Ang II and may enhance important inflammatory pathways.


Subject(s)
Angiotensin II/pharmacology , Animals , Arterioles/metabolism , Captopril/pharmacology , Hydrogen Peroxide/pharmacology , Kidney , Mice
2.
Article in Chinese | WPRIM | ID: wpr-935739

ABSTRACT

Objective: To explore the help seeking efficacy and social assistance willingness of medical staff during major public health events, so as to provide basis for improving the psychological resources and service quality of medical staff and further optimizing the prevention and treatment policies. Methods: In February 2020, a convenient sampling method was used to conduct an online questionnaire survey on medical staff in Henan Province, and a total of 2136 questionnaires were collected. Among them, there were 1940 valid questionnaires, and the effective recovery rate was 90.82%. The questionnaire of help seeking efficacy and willingness to social assistance under epidemic situation was used to investigate the help seeking efficacy and willingness of medical staff. The frequency and rate (%) were used to analyze the overall situation of medical staff's help seeking efficacy and social assistance willingness. The differences among different demographic variables were tested by χ(2) test. Results: Among the 1940 medical and nursing staff, 18.81% (365/1940) did not know how to obtain appropriate psychological assistance. Compared with the low age group, the medical staff in the high age group had the ability of information query, the ability to occupy knowledge resources, the ability to distinguish rumors and facts and the sense of efficacy of obtaining appropriate medical help, and the difference was statistically significant (P<0.05) . The willingness of medical and nursing staff to actively cooperate with the government, maintain social stability and volunteer work were 99.43% (1929/1940) , 98.81% (1917/1940) and 97.11% (1884/1940) . Conclusion: The medical staff had a higher sense of help seeking efficacy and willingness to social assistance. It is necessary to further strengthen the resource support of psychological, social and humanistic care for medical staff.


Subject(s)
Humans , Intention , Medical Staff , Organizations , Public Health , Surveys and Questionnaires
3.
Chinese Journal of Cardiology ; (12): 480-485, 2022.
Article in Chinese | WPRIM | ID: wpr-935173

ABSTRACT

Objective: To evaluate the consistency on the determination of target heart rate by simple calculation method based on resting heart rate and by anaerobic threshold method in cardiopulmonary exercise test (CPET) for patients with coronary artery disease after percutaneous coronary intervention (PCI). Methods: This study was a diagnostic test. Patients with coronary artery disease who underwent the first PCI in the Department of Cardiology of Peking University People's Hospital from October 2011 to April 2021 were enrolled. Patients were further divided into subgroups according to gender, age (<60 years group and ≥60 years group), with or without myocardial infarction history (myocardial infarction group and angina pectoris group) and whether β blockers were applied. The general clinical data of patients, resting heart rate (RHR) and anaerobic threshold heart rate in CPET were collected through the electronic medical record system. The simple target rate (RHR plus 20 or 30 bpm) and the target rate calculated by anaerobic threshold (anaerobic threshold heart rate minus 10 bpm) were both calculated in each patient. Consistency test of target heart rate derived by above the two methods was shown by intra-class correlation (ICC) and Bland-Altman plots. Results: A total of 439 patients were included, age was (56.2±8.8) years, body mass index was (25.77±2.34) kg/m2, there were 382 males (87.0%). The target heart rate determined by anaerobic threshold method was (90.0±11.8)bpm, and the simple target heart rate determined by RHR plus 20 bpm was (91.0±8.4)bpm. There was no significant difference on the target heart rate derived from the two calculation methods (P=0.091). The simple target heart rate determined by RHR plus 30 bpm was (101.0±8.4)bpm, which was significant higher than that determined by anaerobic threshold method (P<0.001). In the following analysis, RHR plus 20 bpm was defined as the simple target heart rate. The ICC value of target heart rate determined by anaerobic threshold and resting rate plus 20 bpm was 0.529(95%CI 0.458-0.593, P<0.001). Bland-Altman plots analysis showed that the ratio of the simple target heart rate and the target heart rate determined by anaerobic threshold method was 1.03±0.11 and the 95% limits of agreement (LOA) were 0.812-1.245. In the subgroup of patients aged<60 years (n=247), the ICC value was 0.492, the ratio by Bland-Altman plots analysis was 1.02±0.11 and LOA was 0.814-1.234; in the subgroup of patients aged ≥60 years (n=192), the ICC value was 0.566, the ratio by Bland-Altman plots analysis was 1.03±0.11 and LOA was 0.810-1.260. In male subgroup(n=382), the ICC value was 0.540, the ratio by Bland-Altman plots analysis was 1.03±0.11 and LOA was 0.813-1.246; in female subgroup(n=57), the ICC value was 0.445, the ratio by Bland-Altman plots analysis was 1.03±0.11 and LOA was 0.810-1.240.In myocardial infarction subgroup (n=186), the ICC value was 0.568, the ratio by Bland-Altman plots analysis was 1.02±0.11 and LOA was 0.810-1.227; in angina pectoris subgroup (n=253), the ICC value was 0.495, the ratio by Bland-Altman plots analysis was 1.04±0.11 and LOA was 0.813-1.260. In the subgroup of patients with β blockers (n=353), the ICC value was 0.520, the ratio by Bland-Altman plots analysis was 1.03±0.11 and LOA was 0.810-1.252; in the subgroup of patients without β blockers (n=86), the ICC value was 0.570, the ratio by Bland-Altman plots analysis was 1.02±0.10 and LOA was 0.821-1.219. Conclusions: The simple target heart rate determined by RHR plus 20 bpm is consistent with the target heart rate determined by anaerobic threshold in patients with coronary artery disease after PCI. But the simple target heart rate determined by RHR plus 20 bpm can't replace the target heart rate determined by anaerobic threshold in this patient cohort.


Subject(s)
Adrenergic beta-Antagonists , Anaerobic Threshold , Angina Pectoris , Coronary Artery Disease , Female , Heart Rate/physiology , Humans , Male , Myocardial Infarction , Percutaneous Coronary Intervention
4.
Article in Chinese | WPRIM | ID: wpr-940583

ABSTRACT

ObjectiveTo provide references for the selection of Zingiberis Rhizoma Recens on the research of famous classical formulas and the reasonable uses for medicines and foods through herbal textural research and quality analysis of Zingiberis Rhizoma Recens from main producing areas in China. MethodBy consulting the ancient and modern literature, the name, origin, producing areas, harvest time, processing methods of Zingiberis Rhizoma Recens were summarized. According to the 2020 edition of Chinese Pharmacopoeia, the contents of 6-gingerol, 8-gingerol, 10-gingerol, and volatile oil in Zingiberis Rhizoma Recens samples were determined. ResultHerbal textural research indicated that medicinal Zingiberis Rhizoma Recens originated from the fresh rhizome of Zingiber officinale. Before Tang dynasty, Zingiberis Rhizoma Recens produced in Sichuan was the best. In the Song dynasty, Zingiberis Rhizoma Recens produced in Sichuan, Zhejiang, and Anhui was of excellent quality. The cultivation of Zingiberis Rhizoma Recens in Shandong developed during the Ming and Qing dynasties. From ancient times to the present, the harvest period extended from the autumnal equinox to the winter solstice. Quality evaluation standards of Zingiberis Rhizoma Recens were essentially the same in ancient and present documents, as those with little gluten or gluten-free and strong pungency were preferred. After determination, the contents of 6-gingerol, 8-gingerol, and 10-gingerol in 44 samples were qualified in 27 samples, with a qualified rate of 61.4%. Among them, 17 samples were unqualified in the total contents of 8-gingerol and 10-gingerol. Among these qualified samples, the content of 6-gingerol ranged from 0.067% to 0.255%, and the total contents of 8-gingerol and 10-gingerol ranged from 0.040% to 0.131%. The content of volatile oil in 36 samples were qualified in 33 samples, with a qualified rate of 91.7%. Among the qualified samples, the content of volatile oil ranged from 0.175% to 0.410%. ConclusionZingiberis Rhizoma Recens has been used as medicines and foods since ancient times, and the genuine producing areas are consistent in ancient and present times, while the quality of the products, especially the medicinal Zingiberis Rhizoma Recens, should be monitored. Medicinal Zingiberis Rhizoma Recens planted in Leshan city of Sichuan province contains high contents of effective components, followed by Qujing and Wenshan cities of Yunnan province. Zingiberis Rhizoma Recens planted in Shandong and other places is mostly edible.

5.
Article in Chinese | WPRIM | ID: wpr-940533

ABSTRACT

Wuzhuyu Tang (WZYT), a classical traditional Chinese medicine (TCM) formula, was first recorded in Treatise on Cold Damage by the prestigious physician ZHANG Zhong-jing in the Eastern Han Dynasty, and included in Catalogue of Ancient Classical Formulas (First Batch). WZYT is composed of four medcinals: Euodiae Fructus, Ginseng Radix et Rhizoma, Zingiberis Rhizoma Recens, and Jujubae Fructus, which has the effects of warming the middle and tonifying deficiency, dissipating cold and descending adverse qi. Based on data mining, this paper analyzes the modern clinical research literature on WZYT, which is expected to lay a basis for clarifying the "disease-symptom-prescription-medicinal" relationship of WZYT, as well as its modern clinical indications and clinical dosage. With the search term "Wuzhuyu Tang", 253 complete medical records were retrieved from CNKI, VIP, and Wanfang (2000-2020), involving 292 TCM prescriptions. Microsoft Excel 2019 was employed to establish the medical record database and the main clinical indications were statistically analyzed. Moreover, the syndromes, incidence law, and medication regularity were summed up. The result indicates WZYT has a wide range of modern clinical applications, mainly including the treatment of headache, dizziness, vomiting, diarrhea, dysmenorrhea, morning sickness, and other diseases, and the "deficiency, cold, and reversal" symptoms, mainly manifested as nausea and vomiting, headache, fatigue and lack of strength, reversal cold of hands and feet, poor appetite, gloomy complexion, dizziness, aversion to wind and cold, abdominal pain, sloppy diarrhea, abdominal distension, poor sleep, pale tongue, white coating, and deep thread wiry pulse. These diseases and symptoms mainly occur in women and middle-aged people. In most cases, medicinals are added or subtracted according to the symptoms, and the common doses of Euodiae Fructus, Zingiberis Rhizoma Recens, Codonopsis Radix or Ginseng Radix et Rhizoma, and Jujubae Fructus in the original prescription are 6-15 g, 10-15 g, 10-15 g or 9-12 g, and 4-6, respectively. The added medicinals are in the descending order of Pinelliae Rhizoma, Atractylodis Macrocephalae Rhizoma, Poria, Glycyrrhize Radix et Rhizoma, and Chuanxiong Rhizoma according to the frequency.

6.
Journal of Integrative Medicine ; (12): 376-384, 2022.
Article in English | WPRIM | ID: wpr-939892

ABSTRACT

OBJECTIVE@#Psoriasis is a common chronic inflammatory skin disease that is prone to recurrence, and the proinflammatory factor, cysteine-rich protein 61 (Cyr61), is important in its pathophysiology. Long-term clinical practice has shown that Sancao Formula (SC), a Chinese herbal compound, is effective in the treatment of psoriasis, but the precise mechanism remains unknown. In this study, we investigate the mechanism by which SC extract alleviates imiquimod (IMQ)-induced psoriasis.@*METHODS@#The expression of Cyr61 in psoriatic lesions and normal healthy skin was detected using immunohistochemical analysis to investigate the biological role of Cyr61 in models of psoriatic inflammation. A psoriatic mouse model was established by topical application of IMQ, and the effect of topical application of SC extract was evaluated using the psoriasis area and severity index (PASI) score, hematoxylin-eosin staining, and histopathological features of the skin. Next, a HaCaT cell inflammation model was established using interferon-γ (IFN-γ), and the effect of SC extract on the mRNA and protein levels of Cyr61 and intercellular cell adhesion molecule-1 (ICAM-1) was confirmed using Western blot and quantitative real-time polymerase chain reaction analyses.@*RESULTS@#Immunohistochemical staining showed that the expression of Cyr61 in psoriatic lesions was higher than that in normal skin samples (78.26% vs 41.18%, P < 0.05), and the number of Cyr61-positive cells in psoriatic lesions was also significantly higher than in normal skin (18.66 ± 2.51 vs 4.33 ± 1.52, P < 0.05). Treatment in mice with IMQ-induced psoriasis showed that SC extract could significantly improve the inflammatory phenotype, PASI score (10.875 ± 0.744 vs 3.875 ± 0.582, P < 0.05), and pathological features compared with those in IMQ model group; SC treatment was also associated with decreased levels of Cyr61 and ICAM-1. In the IFN-γ-induced inflammatory cell model, the mRNA and protein levels of Cyr61 and ICAM-1 were upregulated, while the SC extract downregulated the levels of Cyr61 and ICAM-1.@*CONCLUSION@#The results provide a theoretical basis for the involvement of Cyr61 in the pathogenesis of psoriasis, and suggest that SC should be used to target Cyr61 for the prevention of psoriasis recurrence.


Subject(s)
Animals , China , Cysteine-Rich Protein 61/metabolism , Disease Models, Animal , Drugs, Chinese Herbal/therapeutic use , Imiquimod/adverse effects , Inflammation/drug therapy , Intercellular Adhesion Molecule-1/genetics , Interferon-gamma , Mice , Mice, Inbred BALB C , Psoriasis/pathology , RNA, Messenger/therapeutic use
7.
Journal of Integrative Medicine ; (12): 418-427, 2021.
Article in English | WPRIM | ID: wpr-888773

ABSTRACT

OBJECTIVE@#Exercise, as a common non-drug intervention, is one of several lifestyle choices known to reduce the risk of cancer. Mitochondrial division has been reported to play a key role in the occurrence and transformation of hepatocellular carcinoma (HCC). This study investigated whether exercise could regulate the occurrence and development of HCC through mitosis.@*METHODS@#Bioinformatics technology was used to analyze the expression level of dynamin-related protein 1 (DRP1), a key protein of mitochondrial division. The effects of DRP1 and DRP1 inhibitor (mdivi-1) on the proliferation and migration of liver cancer cells BEL-7402 were observed using cell counting kit-8, plate colony formation, transwell cell migration, and scratch experiments. Enzyme-linked immunosorbent assay, Western blot and real-time polymerase chain reaction were used to detect the expression of DRP1 and its downstream phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway. A treadmill exercise intervention was tested in a nude mouse human liver cancer subcutaneous tumor model expressing different levels of DRP1. The size and weight of subcutaneous tumors in mice were detected before and after exercise.@*RESULTS@#The expression of DRP1 in liver cancer tissues was significantly upregulated compared with normal liver tissues (P < 0.001). The proliferation rate and the migration of BEL-7402 cells in the DRP1 over-expression group were higher than that in the control group. The mdivi-1 group showed an inhibitory effect on the proliferation and migration of BEL-7402 cells at 50 μmol/L. Aerobic exercise was able to inhibit the expression of DRP1 and decrease the size and weight of subcutaneous tumors. Moreover, the expression of phosphorylated PI3K (p-PI3K) and phosphorylated AKT (p-AKT) decreased in the exercise group. However, exercise could not change p-PI3K and p-AKT levels after knocking down DRP1 or using mdivi-1 on subcutaneous tumor.@*CONCLUSION@#Aerobic exercise can suppress the development of tumors partially by regulating DRP1 through PI3K/AKT pathway.


Subject(s)
Animals , Apoptosis , Carcinoma, Hepatocellular/therapy , Cell Line, Tumor , Cell Proliferation , Down-Regulation , Dynamins , Liver Neoplasms/therapy , Mice , Phosphatidylinositol 3-Kinase/metabolism , Phosphatidylinositol 3-Kinases/metabolism , Proto-Oncogene Proteins c-akt/metabolism , Signal Transduction
8.
Acta Pharmaceutica Sinica ; (12): 1201-1210, 2021.
Article in Chinese | WPRIM | ID: wpr-887070

ABSTRACT

In recent years, targeted therapy has become the standard treatment for advanced non-small cell lung cancer (NSCLC), but this treatment method has very limited effect on patients with epidermal growth factor receptor (EGFR) exon 20 insertion (ex20ins) mutation. This insertion mutation is the third most common mutation in EGFR. It shrinks the drug binding pocket and gives tumors inherent resistance to available EGFR tyrosine kinase inhibitors (TKIs), resulting in the limited efficiency of the first and second generation of EGFR tyrosine. So far, no targeted therapy has been approved for NSCLC patients with EGFR exon 20 insertion mutations, and there are still no drugs that have met clinical needs. In this case, new treatment strategies using new EGFR TKIs or bispecific antibodies may establish new treatment standards for these patients in the future. In this review, we will summarize all relevant exon 20 insertions reported so far on the structure of EGFR and its influence on EGFR inhibitor sensitivity, as well as the treatment strategies of exon 20 insertions in NSCLC patients, hoping to be a clinical treatment for reference.

9.
Article in Chinese | WPRIM | ID: wpr-884551

ABSTRACT

Objective:To analyze the advantages of IPSA combined with increasing cervical center dose in intracavitary and interstitial brachytherapy (IC/IS) for locally advanced cervical cancer.Methods:A total of 46 stage Ⅱ B cervical cancer patients with, local lesion size≥5 cm after 45 Gy/25f external intensity-modulated radiotherapy (IMRT) were recruited. Uterine tandem and needles were implanted, CT was performed, and then HR-CTV, rectum, bladder, sigmoid colon and the area of cervix increased dose (HR-cervix) were delineated, IPSA was used for optimization. According to whether the dose of HR-cervix was increased or not, all patients were divided into IC/IS+ HR-cervix group (group A) and IC/IS group (group B). The differences in dosimetric parameters were compared between two groups. Results:The relative uterine tandem dwell time was significantly extended in group A ( P<0.001). In group B, the V 150% and V 200% volumes of HR-cervix were increased from 63.94% and 30.80% to 91.54% and 64.06%. The D 90% and D 100% in group A were significantly lower than those in group B (both P<0.05). There was no statistical difference in organ at risk (OAR) dose. Conclusion:IPSA combined with increasing cervical center dose can meet the HR-CTV D 90% dose requirement, normal tissue dose limits, and can escalate the doses to local areas of the cervix.

10.
Article in Chinese | WPRIM | ID: wpr-875957

ABSTRACT

Objective To determine the prevalence rate of elevated fasting plasma glucose(FPG)in residents of Liaoning Province and to identify the risk factors, which will help to effectively prevent/alleviate the occurrence and development of diabetes for reduction of socioeconomic burden. Methods A multi-stage stratified random cluster sampling method was used to investigate the residents of 3 towns and 3 rural areas in Liaoning Province. A total of 53 497 adults(aged 35-75 years)were surveyed by questionnaires and the risk or protective factors were analyzed by logistic regression method. Results The prevalence rate of elevated FPG was 24.7% with 23.2% in males and 26.0% in females, respectively. The results of multivariate logistic regression showed that age increase, female, high education, occupation(except farmers), alcohol drinking, obesity, hypertension, and dyslipidemia were risk factors of FPG(P < 0.05 or P < 0.001). Conclusion The prevalence of elevated FPG is high in the study population aged 35-75 years in Liaoning. It is necessary to strengthen the intervention in this part of the population in order to reduce the incidence of diabetes mellitus.

11.
International Journal of Surgery ; (12): 732-737, 2021.
Article in Chinese | WPRIM | ID: wpr-907514

ABSTRACT

Objective:To compare the safety of continuous suture and interrupted suture in Laparoscopic Sleeve Gastrectomy and Omentopexy.Methods:The retrospective study include 121 patients who underwent Laparoscopic Sleeve Gastrectomy and Omentopexy in the Department of Obesity and Metabolic Surgery of the First Affiliated Hospital of Jinan University from January 2019 to March 2020.Among the 121 patients, 40 were males and 81 females, with an average age of (30.17±10.16) and (27.10±11.03), respectively. Among them, 70 patients used continuous suture during OP (continuous suture group), and 51 patients used intermittent suture (interrupted suture group). The operation time, intraoperative blood loss, postoperative pain score, postoperative complications were compared between the two groups. Normally distributed measurement data were measured as (mean ± standard) deviation ( Mean± SD), and t test was used to count the comparison between the two groups. The χ2 test was used to compare the measurement data between groups. The rank data used Wilconxon rank sum test. Results:(1) Intraoperative conditions: the operative time and intraoperative blood loss in the continuous suture group were (124.89±37.69) min and (7.3±2.5) mL, respectively. In the interrupted suture group, the above indexes were (124.80±35.53) min and (7.0±2.5) mL, respectively. There was no significant difference between the two groups ( t=0.012, 0.709, P>0.05). (2) Postoperative conditions: postoperative pain score and postoperative hospital stay in the continuous suture group were: mild pain in 45 cases, moderate pain in 25 cases, painless and severe pain in 0 cases, (9.3±3.2) d, respectively. In the interrupted suture group, the above indicators were 39 cases of mild pain, 12 cases of moderate pain, 0 cases of painless and severe pain, (8.7±2.1) d, and there was no statistical significance between the two groups ( Z=-1.431, P>0.05, t=1.149, P>0.05). In the continuous suture group, postoperative abdominal distension occurred in 8 cases, nausea and vomiting in 32 cases, gastroesophageal reflux in 17 cases by upper digestive tract imaging, contrast agent slowly passed through the residual stomach/anastomotic site in 14 cases, gastric volvulus in 6 cases, and no postoperative infection or anastomotic leakage occurred. In the interrupted suture group, the above indexes were 10 cases, 25 cases, 14 cases, 10 cases, gastric volvulus in 1 cases, and no postoperative infection or anastomotic leakage occurred. There was no significant difference in the above indicators between the two groups ( χ2=1.559, 0.010, 0.155, 0.003, 1.308, P>0.05). Conclusions:In laparoscopic sleeve gastrectomy and omentopexy, there is no significant difference between the continuous suture and interrupted suture in terms of operation time, intraoperative blood loss and postoperative complications. The surgeon can choose a suitable suture method based on his own judgment and experience.

12.
Article in Chinese | WPRIM | ID: wpr-906524

ABSTRACT

Objective:To analyze the chemical constituents in Euodiae Fructus by ultra-high performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS). Method:The chromatographic separation was performed on an ACQUITY UPLC BEH C<sub>18</sub> column (2.1 mm×100 mm, 1.7 μm) with acetonitrile (A)-0.1% formic acid aqueous solution (B) as mobile phase (0-3 min, 6%A; 3-4 min, 6%-10%A; 4-7 min, 10%-12%A; 7-8 min, 12%-14%A; 8-13 min, 14%-15%A; 13-15 min, 15%-20%A; 15-18 min, 20%-30%A; 18-21 min, 30%-49%A; 21-25 min, 49%-51%A; 25-27 min, 51%-73%A; 27-30 min, 73%-80%A; 30-31 min, 80%-100%A; 31-32 min, 100%A) for gradient elution. The column temperature was 35 ℃, and the flow rate was 0.4 mL·min<sup>-1</sup>. Mass spectrometry was performed using an electrospray ionization and data were collected in positive and negative ion modes, and the detection range was <italic>m</italic>/<italic>z</italic> 100-1 200. The chemical constituents in Euodiae Fructus were identified rapidly and comprehensively based on the accurate relative molecular mass and combined with literature data and reference substances. Result:A total of 92 chemical constituents were speculatively identified from the 70% methanol extract of Euodiae Fructus, including 39 alkaloids, 19 flavonoids, 12 limonoids, 20 phenolic acids and 2 organic acids. Among them, 26 compounds were confirmed by the reference substances. Conclusion:The compound types of Euodiae Fructus are multiple and quite different in polarity. The chemical compositions of Euodiae Fructus from different regions and species are similar. The established method is rapid and accurate, with which the chemical compositions of Euodiae Fructus have been identified comprehensively. Therefore, this study provides an experimental reference for further clarifying active and toxic constituents of Euodiae Fructus.

13.
Article in Chinese | WPRIM | ID: wpr-921683

ABSTRACT

The present study explored the effects and its underlying mechanisms of four active fractions of Camellia nitidissima(leaf polyphenols, leaf saponins, flower polyphenols, and flower saponins in C. nitidissima) in inhibiting the proliferation and migration of non-small cell lung cancer(NSCLC) by suppressing the epidermal growth factor receptor(EGFR). MTT assay was used to detect the effect of four active fractions on the proliferation of NCI-H1975 and HCC827 cells. Wound healing assay and Transwell assay were adopted to evaluate the effect of four active fractions on the migration of NSCLC. The effect of four active fractions on the enzyme activity of EGFR was detected. Molecular docking was carried out to explore the direct action capacity and action sites between representative components of the four active fractions and EGPR. Western blot assay was employed to investigate the effect of four active fractions on the protein expression in EGFR downstream signaling pathways. The results of the MTT assay indicated that the cell viability of NCI-H1975 and HCC827 cells was significantly inhibited by four active fractions at 50, 100, 150, and 200 μg·mL~(-1) in a dose-dependent manner. Wound healing assay and Transwell assay revealed that the migration of NCI-H1975 and HCC827 cells was significantly suppressed by four active fractions. In addition, the results of the protein activity assay showed that the enzyme activity of EGFR was significantly inhibited by four active fractions. The molecular docking results confirmed that various components in four active fractions possessed strong binding activity to EGFR enzymes. Western blot assay revealed that four active fractions down-regulated the protein expression of EGFR and its downstream signaling pathways. It is concluded that the four active fractions of C. nitidissima can inhibit NSCLC. The mechanism may be related to EGFR and its downstream signaling pathways. This study provides a new scientific basis for the clinical treatment of NSCLC with active fractions of C. nitidissima, which is of reference significance for further research on the anti-tumor mechanism of C. nitidissima.


Subject(s)
Apoptosis , Camellia , Carcinoma, Non-Small-Cell Lung/drug therapy , Cell Line, Tumor , Cell Proliferation , ErbB Receptors/genetics , Humans , Lung Neoplasms/drug therapy , Molecular Docking Simulation
14.
Article in Chinese | WPRIM | ID: wpr-912496

ABSTRACT

Objective:We aimed to explore a colorectal cancer risk prediction model through machine learning algorithm based on the big data in laboratory medicine.Methods:According to the labeling of colonoscopy combined with pathology or referring to the ICD-10 code, the colonoscopy patients in Shanghai Changhai Hospital from 2013.1.1 to 2019.6.30 and the outpatients and inpatients from 2010.1.1 to 2019.6.30 were divided into colorectal cancer groups and non-colorectal cancer group. Four machine learning algorithms, Extreme gradient boosting(Xgboost),Artificial Neural Network(ANN),Support Vector Machine(SVM),Random Forest(RF), are used to mine all routine laboratory test item data of the enrolled patients, select model features and establish a classification model for colorectal cancer. And the effectiveness of the model was prospectively verified in patients in the whole hospital of Changhai Hospital from 2019.7.1 to 2020.8.31.Result:A colorectal cancer risk prediction model (CRC-Lab7) including 7 characteristics of fecal occult blood, carcinoembryonic antigen, red blood cell distribution width, lymphocyte count, albumin/globulin, high-density lipoprotein cholesterol and hepatitis B virus core antibody was constructed by the XgBoost algorithm. The AUC of the model in the validation set and prospective validation set were 0.799 and 0.816, respectively, which was significantly higher than that of fecal occult blood (AUC was 0.68 and 0.706, respectively). It also has high diagnostic accuracy for colorectal cancer with negative fecal occult blood or under 50 years old.Conclusion:In this study, a colorectal cancer risk prediction model was established by mining routine laboratory big data. The model′s performance is better than fecal occult blood, and it has high diagnostic accuracy for colorectal cancer in patients with negative fecal occult blood and younger than 50 years old.

15.
Article in Chinese | WPRIM | ID: wpr-781484

ABSTRACT

OBJECTIVE@#To provide clinical basis for the diagnosis and treatment of chronic neutrophilic leukemia (CNL) and to provide possible molecular targets for the treatment.@*METHODS@#By summarizing the clinical data of 14 patients with CNL, the clinical characteristics, gene mutation types and possible prognostic factors were analyzed.@*RESULTS@#Among the 14 patients with CNL, males (9 cases) were more than females (5 cases), with a median age of 57 years old. The detection rate of CSF3R mutation was 92.86% (13/14), including 12 cases (85.71%) with T318I mutation and 1 case of Y799X mutation, and only 1 case was not detected for mutation of CSF3R. The ASXL1 mutation was detected in 42.86% (6/14) of the patients, all of which were nonsense mutations, including 4 cases with R693X and 2 cases with E705X, and 14.29% (2/14) of the patients was detected for SETBP1 mutation, all of which were with D868N mutation. No patients with simultaneous ASXL1 and SETBP1 mutations were found, and JAK2 and CALR mutations were not detected. All of the patients had normal karyotypes. These patients' median survival time was 30 months (95%CI 13.19-46.80), and the influence of age over 60 years old was statistically significant (21.83 months vs 35.35 months) (P<0.05).@*CONCLUSION@#It is difficult to diagnose CNL. CSF3R T618I mutation is its specific mutation, and ASXL1 mutation and SETBP1 mutation have auxiliary diagnostic significance for CNL. The age>60 years old at diagnosis is a factor of unfavourable prognosis.

16.
Article in Chinese | WPRIM | ID: wpr-873007

ABSTRACT

Shaoyao Gancaotang, first seen in Treatise on Febrile and Miscellaneous Diseases, is composed of Paeoniae Radix Alba and Glycyrrhizae Radix et Rhizoma Praeparata cum Melle in equal proportion.It has the functions of preserving Yin to nourish blood, harmonizing liver and spleen, relieving spasm and pain.This formula is applied in leg and foot spasm and abdominal pain caused by blood deficiency, body fluid consuming and the unmoistened muscles and veins.It has been highly praised and used by medical experts throughout the ages and has extended its application scope.Modern pharmacological studies have shown that Shaoyao Gancaotang has significant effects in antispasmodic, analgesic, antitussive and other areas, and is used to treat spastic diseases, painful diseases, inflammatory diseases and so on.This paper will systematically elaborate the historical evolution, compatibility analysis, pharmacological and pharmacodynamic studies, modern clinical application of Shaoyao Gancaotang, in order to provide theoretical basis and reference for the development of this famous classical formula.

17.
Article in Chinese | WPRIM | ID: wpr-872970

ABSTRACT

Based on the pharmacovigilance thoughts of Chinese medicine of cognition, application, prevention and rescue of drug toxicity, to sort out the pharmacovigilance information in representative herbal works of the Ming dynasty, and to analyze the characteristics of the pharmacovigilance thoughts of the Ming dynasty, so as to provide reference for rational drug use in modern clinical practice. Taking Bencao Pinhui Jingyao, Bencao Gangmu, Paozhi Dafa, Bencao Shengya Banjie, Bencao Mengquan as the blueprints, and taking the traditional Chinese medicines in these books as the research objects, the text information was extracted from the four aspects of drug identification, drug use, drug prevention and detoxification, and the idea of pharmacovigilance was summarized. In Ming dynasty, pharmacovigilance had a systematic understanding, and cognition of drug toxicity was clear in identifying poison and correcting the mistakes of predecessors, in the aspects of using and preventing poisons, the use of poisons was prominent, the compatibility and process of poisons were emphasized, and the methods and mechanism of poison relief were clear in detoxification. Ming dynasty has initially formed the whole pharmacovigilance theoretical frame of cognition, application, prevention and rescue of drug toxicity, which has certain guiding and reference significance for modern clinical rational drug use.

18.
Article in Chinese | WPRIM | ID: wpr-872085

ABSTRACT

Objective:To test the practicality and effectiveness of Evaluation system of Hunan Medical Science and Technology Awards by empirical data.Methods:The empirical data of this paper is based on the 48 award-winning projects of the 2018 Hunan Medical Science and Technology Award. The actual evaluation process was simulated and peer experts were invited to grade the researching samples by index system to collect measured data. Use AMOS and SPSS as tools to test the reliability, validity and the correlation of the Evaluation system.Results:The internal consistency reliability of Cronbach α is 0.820, which shows this evaluation system with good reliability; sample data of confirmatory factor analysis matches the theoretical model, which shows this evaluation system with good validity; The results of analysis of variance showed that the differences among the three winning groups were statistically significant( P<0.05); The correlation coefficient of spearman rank correlation analysis is 0.335( P<0.05), which shows the positive correlation between the theoretical results and the actual evaluation results. Conclusions:The evaluation system of Hunan Medical Science and Technology Awards performs well and possesses strong applicability and practicality. The higher the score of the project measured by this indicator, the higher the quality of the project, and the higher the order of rewards that can actually be obtained. It could be used as an objective reference for the evaluation of Hunan Medical Science and Technology Award.

19.
Article in Chinese | WPRIM | ID: wpr-872037

ABSTRACT

Objective:To establish an evaluation index system for Hunan Medical Science and Technology Award.Methods:Based on the literature review and expert demonstration, combined with the previous review experiences of Hunan Medical Science and Technology Award, a review system framework was initially developed. Delphi method was used for expert consultation, outcome analysis were also adopted for the modification and reconstruction of this index system.Results:The standard evaluating system was set up with four first-level indicators, fifteen second-level indicators and their scoring standards.Conclusions:The evaluation index system established has the characteristics of scientific, systematic, pertinent, practical, simple and operable, also provides a reference and basis for scientific, objective and accurate evaluation of Medical Science and Technology Awards.

20.
Article in Chinese | WPRIM | ID: wpr-868103

ABSTRACT

Objective:To explore the value of contrast-enhanced ultrasound and its quantitative analysis technology in the evaluation of testicular microvascular injury caused by chronic alcoholism, as well as its relationship with the morphological changes of testicular spermatogenic cells.Methods:Seventy-two New Zealand white rabbits were randomly divided into control group (S group), low-dose alcohol group (L group), medium-dose alcohol group (M group), and high-dose alcohol group (H group). Then, the rabbits were subdivided into the groups of S1, S2, S3, L1, L2, L3, M1, M2, M3, H1, H2, H3 according to different time points (30 d, 60 d, 90 d). The rabbits in each group were examined by routine ultrasound before the experiment, followed by contrast-enhanced ultrasound examination. Testicular tissues were taken for pathological examination under light and electron microscope.Results:①The peak intensity and area under the curve of ultrasound contrast parameters gradually decreased with the increase of dosage and duration of alcohol feeding (all P<0.05), and the curvature also gradually decreased (all P<0.05). The differences of peak time, mean transit time, and peak half-time were not statistically significant (all P>0.05). ②With the increase of alcohol dosage and duration under the light microscope, the seminiferous tubule epithelium gradually became thinner, and the sperm in the cavity gradually decreased or no sperm was produced. The Johnsen′s score of testicular tissue decreased with the increase of alcohol dosage and duration (all P<0.05). The cytoplasmic mitochondria of the microvascular endothelial cells were vacuolated under the electron microscope. With the dosage and duration of alcohol feeding, the endothelial cells were vacuolated and even shed, and the basement membrane was interrupted. Conclusions:Alcohol could damage the testicular microvessels and spermatogenic cells in a dose-effect and time-effect relationship. Contrast-enhanced ultrasound can be used to evaluate the microvessel damage of testis caused by chronic alcoholism and indirectly reflect the morphological changes of spermatogenic cells.

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