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1.
Chinese Journal of Stomatology ; (12): 202-207, 2022.
Article in Chinese | WPRIM | ID: wpr-935851

ABSTRACT

Two-dimensional black phosphorus (BP) has unique layered structure, excellent photothermal properties, good biocompatibility and high biodegradability. In recent years, it has been found that BP has stable drug loading and light controlled sustained-release drug functions, excellent antibacterial properties and the ability to promote vascular and nerve regeneration in the medicine field, which has a broad application prospect in dentistry. This review elaborates the biological properties of two-dimensional BP and its application progress in dentistry, so as to provide new ideas for the further research and application of two-dimensional BP.


Subject(s)
Anti-Bacterial Agents , Dentistry , Phosphorus
2.
Article in Chinese | WPRIM | ID: wpr-940625

ABSTRACT

ObjectiveWe aimed to investigate the efficacy and mechanism of Yishen Shengjing Prescription (YSP) in the treatment of oligoasthenospermia in rats. MethodThe oligoasthenospermia rat model was established by injection with cyclophosphamide (35 mg·kg-1·d-1) for 5 consecutive days. Rats were randomly assigned into control group (without treating with cyclophosphamide), model group, low- (YSP-L), medium- (YSP-M), and high- (YSP-H) dose (2.91, 5.83, and 11.66 g·kg-1, respectively) groups, Wuzi Yanzongwan (WYW, 1.03 g·kg-1) group, and L-carnitine (0.17 g·kg-1) group, with 8 rats in each group. After 28 days of drug intervention, the body weight, testicular weight, and testicular index of rats were recorded. The sperm quality in epididymis was detected by computer-assisted sperm analysis (CASA) system. Hematoxylin-eosin (HE) staining was employed for observation of testicular tissue morphology. The levels of malondialdehyde (MDA) and superoxide dismutase (SOD) in testicular tissue were detected by colorimetry. The levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone (T) in serum were determined by enzyme-linked immunosorbent assay(ELISA). TdT-mediated dUTP nick-end labeling (TUNEL) was employed to detect the apoptosis of testicular cells. The protein levels of B cell lymphoma-2(Bcl-2), Bax, and cleaved Caspase-3 in testicular tissue were detected by Western blot. ResultCompared with the control group, the model group showed decreased body weight, testicular weight and index, sperm concentration and motility (P<0.01) and increased testicular pathological score (P<0.01). Compared with the model group, the YSP-M, YSP-H, WYW, and L-carnitine groups showed increased body weight, testicular weight, testicular index, sperm concentration and motility and decreased testicular pathological score. After modeling, the SOD level decreased (P<0.01) while the MDA content increased (P<0.01) in the testicular tissue. YSP-H, WYW, and L-carnitine reversed the SOD and MDA level changes caused by modeling. Compared with the control group, the model group exhibited declined T level (P<0.01) and increased FSH and LH levels (P<0.01). Compared with the model group, YSP, WYW, and L-carnitine increased the T level (P<0.01) and decreased the LH level (P<0.05, P<0.01). The apoptosis rate of spermatogenic cells in the model group was higher than that in the control group (P<0.01), whereas YSP-M, WYW, and L-carnitine reversed such changes (P<0.01). The model group rats showed decreased expression of Bcl-2(P<0.05) and increased expression of Bax and cleaved Caspase-3 (P<0.05, P<0.01). Compared the model group, YSP-M, YSP-H, WYW, and L-carnitine up-regulated the Bcl-2 expression and down-regulated the cleaved Caspase-3 expression (P<0.05, P<0.01). ConclusionYSP improved the sperm quality of oligoasthenospermia model rats by regulating the antioxidant system and sex hormone levels and inhibiting the apoptosis of spermatogenic cells.

3.
Article in Chinese | WPRIM | ID: wpr-906241

ABSTRACT

Objective:To evaluate the analgesic effects of Wenjing Zhitong prescription (WZP) and explore its possible analgesic mechanisms so as to provide experimental basis for research and development of new Chinese medicine. Method:Analgesic effects of WZP were evaluated by observing the writhing latency and number in the writhing models which were induced by oxytocin in rats as well as those induced by acetic acid and prostaglandin E<sub>1</sub> (PGE<sub>1</sub>), respectively in mice. Effect of WZP on uterine contraction frequency, amplitude and activity were evaluated by observing the oxytocin-induced contraction of uterine smooth muscle in rats and rabbits <italic>in vivo</italic>. In the oxytocin-induced rat writhing models, the content of prostaglandin F<sub>2</sub><italic><sub>α </sub></italic>(PGF<sub>2</sub><italic><sub>α</sub></italic>) and prostaglandin E<sub>2 </sub>(PGE<sub>2</sub>) in rat uterine tissues and the content of beta-endorphins (<italic>β</italic>-EP) in rat serum were detected by enzyme-linked immunosorbent assay (ELISA). Expression of estrogen receptor (ER) and oxytocin receptor (OTR) in rat uterine were tested by Real-time polymerase chain reaction(Real-time PCR) method to investigate the possible molecular mechanism of WZP for its analgesic effect. Result:Results of analgesic effect showed that in oxytocin-induced rat writhing experiment, the number of writhing responses in both the WZP (1.5,3.0 g·kg<sup>-1</sup>) group was lower than than in the model group (<italic>P</italic><0.05). In acetic acid-induced mice writhing experiment, the latency of writhing response in WZP (6.0 g·kg<sup>-1</sup>) group was significantly prolonged as compared with that in model group <italic>(P</italic><0.01), and the number of writhing response was significantly reduced (<italic>P</italic><0.05). In PGE<sub>1</sub>-induced mice writhing model, the writhing number in WZP (1.5,3.0,6.0 g·kg<sup>-1</sup>) groups was significantly lower than that in the model group (<italic>P</italic><0.05,<italic>P</italic><0.01). Results of effect on uterine smooth muscle demonstrated that WZP (0.38,0.75,1.50 g·kg<sup>-1</sup>) could significantly reduce the frequency of uterine smooth muscle contraction in rabbits (<italic>P</italic><0.05,<italic>P</italic><0.01), WZP (0.75,1.50,3.00 g·kg<sup>-1</sup>) could significantly reduce the contractile amplitude and activity of smooth muscle in the uterus of rats (<italic>P</italic><0.05). Results of molecular mechanisms of analgesic effects showed that the WZP (0.75,1.50,3.00 g·kg<sup>-1</sup>) significantly reduced the content of PGF<sub>2</sub><italic><sub>α</sub></italic> and the ratio of PGF<sub>2</sub><italic><sub>α</sub></italic> to PGE<sub>2</sub> in the uterine tissue of rats (<italic>P</italic><0.01). In the WZP (3.00 g·kg<sup>-1</sup>) group, the levels of <italic>β</italic>-EP in the serum of rats were significantly increased (<italic>P</italic><0.01), and the levels of OTR in uterus of rats in the WZP (1.50,3.00 g·kg<sup>-1</sup>) group were significantly decreased (<italic>P</italic><0.05). Conclusion:Pharmacological studies demonstrated potent analgesic effect of WZP, and such analgesic effect were mediated by significantly inhibiting contraction of uterine smooth muscle, decreasing the contents of PGF<sub>2</sub><italic><sub>α</sub> </italic>and ratio of PGF<sub>2</sub><italic><sub>α</sub></italic>/PGE<sub>2</sub>, reducing OTR expression in uterine as well as increasing the amount of <italic>β</italic>-EP in serum.

4.
Article in Chinese | WPRIM | ID: wpr-912079

ABSTRACT

From the first time that lymphokine active killer(LAK) cell , were induced in 1982, to the first chimeric antigen receptor T-cell (CAR-T) immunotherapy was used by Dr. Rosenberg in 2010 to successfully treat chronic lymphocytic leukemia (CLL), and Novartis′ CAR-T therapy Kymriah is approved by the FDA for B-lineage acute lymphoblastie leukemia (B-ALL) in 2017, CAR-T immunotherapy has entered a new era. The pipeline of CAR-T therapy is rapidly expanding, including the exploration of new targets. In addition to the research focus on CD19, CD20, CD22 and B cell maturation antigen(BCMA), new research directions such as dual targets, gene edited CAR-T are also constantly advancing. Compared with solid tumors that are limited by factors such as tumors microenvironment, CAR-T immunotherapy has more obvious effects in the field of hematological malignancies, such as the FDA approved CAR-T therapy Yescarta, Kymriah, Tecartus, Breyanzi and Abecma. This article will review the recent research progress of clinical treatment in hematological malignancies.

5.
Article in Chinese | WPRIM | ID: wpr-888055

ABSTRACT

In recent years, only a small number of new Chinese medicines have been approved for marketing, which has embodied the bottleneck in the development of the Chinese medicine industry. To tackle this problem, the National Medical Products Administration has issued a series of regulations and technical requirements. In the context of new regulations, this study deeply explored the research and development strategies of new Chinese medicines under the guidance of the new classification of drug registration, and discussed the key technical issues in the research and development.


Subject(s)
China , Drugs, Chinese Herbal , Medicine, Chinese Traditional , Pharmaceutical Preparations , Research
6.
Chinese Journal of Ultrasonography ; (12): 1026-1032, 2021.
Article in Chinese | WPRIM | ID: wpr-932357

ABSTRACT

Objective:To assess the left ventricular (LV) myocardial mechanical dysfunction in patients with cirrhosis using ultrasonic layer-specific strain imaging and to explore its value in clinical application.Methods:A total of 80 consecutive cirrhosis patients without cardiovascular diseases were prospectively enrolled from October 2020 to March 2021 in Sichuan Provincial People′s Hospital, 39 of whom were assigned to the compensated group and 41 were assigned to the decompensated group according to the occurrence of portal hypertension. Forty-three healthy volunteers during the same period were randomly recruited as the control group. Transthoracic echocardiography was performed to assess the LV configuration and functional parameters. LV global longitudinal strain in endocardial, middle and epicardial myocardium (GLSendo, GLSmid, GLSepi), and longitudinal strain (LS) in basal, middle and apical segments, and peak strain dispersion (PSD) were obtained using ultrasonic layer-specific strain imaging. ΔLS was calculated by the formula of GLSendo-GLSepi. Then, the differences of related parameters among three groups were compared.Results:①Conventional echocardiography: compared with the control group, the interventricular septum end-diastolic thickness (IVSTd), left ventricular posterior wall end-diastolic thickness (LVPWd), left ventricular mass (LVM) and LVM index (LVMI) were increased in compensated and decompensated groups (all P<0.05), while no significant differences in conventional echocardiographic parameters were identified between the two cirrhosis groups (all P>0.05). ②Global layer-specific strain: compared with the control group, GLSendo, GLSmid, GLSepi and ΔLS were decreased and PSD was increased in compensated and decompensated groups (all P<0.05); Moreover, the decompensated group showed a more impaired GLSendo, GLSmid and GLSepi than compensated group (all P<0.05), whereas there were no significant differences of ΔLS and PSD between the two groups(all P>0.05). ③Segmental layer-specific strain: compared with the control group, LS values of three layers in compensated and decompensated groups were reduced at basal, middle and apical levels (all P<0.05); Compared with the compensated group, LS values of three layers in decompensated group tended to be reduced at above there levels, but only apical segments had significant differences (all P<0.05). Conclusions:There are different degrees of LV mechanical dysfunction in patients with variable severity of cirrhosis. Ultrasonic layer-specific strain imaging has the potential to quantitatively assess the state of cardiac involvement in patients with cirrhosis and to provide visual evidence for the early and accurate diagnosis of myocardial injuries.

7.
Article in English | WPRIM | ID: wpr-922685

ABSTRACT

Porphyromonas gingivalis (P. gingivalis), a key pathogen in periodontitis, has been shown to accelerate the progression of atherosclerosis (AS). However, the definite mechanisms remain elusive. Emerging evidence supports an association between mitochondrial dysfunction and AS. In our study, the impact of P. gingivalis on mitochondrial dysfunction and the potential mechanism were investigated. The mitochondrial morphology of EA.hy926 cells infected with P. gingivalis was assessed by transmission electron microscopy, mitochondrial staining, and quantitative analysis of the mitochondrial network. Fluorescence staining and flow cytometry analysis were performed to determine mitochondrial reactive oxygen species (mtROS) and mitochondrial membrane potential (MMP) levels. Cellular ATP production was examined by a luminescence assay kit. The expression of key fusion and fission proteins was evaluated by western blot and immunofluorescence. Mdivi-1, a specific Drp1 inhibitor, was used to elucidate the role of Drp1 in mitochondrial dysfunction. Our findings showed that P. gingivalis infection induced mitochondrial fragmentation, increased the mtROS levels, and decreased the MMP and ATP concentration in vascular endothelial cells. We observed upregulation of Drp1 (Ser616) phosphorylation and translocation of Drp1 to mitochondria. Mdivi-1 blocked the mitochondrial fragmentation and dysfunction induced by P. gingivalis. Collectively, these results revealed that P. gingivalis infection promoted mitochondrial fragmentation and dysfunction, which was dependent on Drp1. Mitochondrial dysfunction may represent the mechanism by which P. gingivalis exacerbates atherosclerotic lesions.


Subject(s)
Endothelial Cells , Mitochondria , Mitochondrial Dynamics , Porphyromonas gingivalis
8.
Article in Chinese | WPRIM | ID: wpr-873192

ABSTRACT

Objective:The SD rat model of hyperplasia of mammary gland(HMG) and the ultrahigh-performance liquid chromatography and mass spectrometry (UHPLC-LTQ-Orbitrap MS) technology were used to explore the pharmacological material basis of Shuangjin Sanjie granules (SJSJG) for the treatment on HMG.Method:SD rat models of HMG were administered in groups, and the nipple height and the diameter were measured; the levels of estradiol (E2), progesterone (P) and prolactin (PRL) in serum were detected, pathological examination was conducted for the hyperplasia of breast tissue. Histochemical methods were used to detect the expressions of estrogen receptor α (ERα), androgen receptor (AR), progesterone receptor (PR), tumor necrosis factor-α (TNF-α) proteins. Finally, UHPLC-LTQ-Orbitrap MS technology was used to detect the main chemical constituents of SJSJG, and the pharmacodynamic substance basis was analyzed based on the pharmacological effect.Result:The results of animal experiments showed that compared with the normal group, nipple height and diameter of the model group increased remarkably (P<0.01), serum E2 significantly increased (P<0.01). Pathological examination showed abnormal hyperplasia of breast tissue, expressions of ERα, AR, PR and TNF-α increased, compared with the model group, the nipple height and diameter of the SJSJG group decreased remarkably (P<0.01), serum E2 was decreased significantly (P<0.01), pathological examination showed weakened abnormal hyperplasia of breast tissue, ERα, AR, PR and TNF-α protein expressions were significant decreased (P<0.01). The results of basic material study showed that 85 chemical components were identified from SJSJG, including 16 alkaloids, 7 flavonoids, 15 terpenes, 9 phenolic acid compounds, 3 coumarin compounds, 10 esters and lactone compounds, 7 fatty acids compounds, 4 amino acids compounds, and 14 other types of ingredients, among them, alkaloids and terpenoids chemical drug substances were closely related.Conclusion:SJSJG can effectively improve the condition of breast hyperplasia, and its medicinal substance basis may include saikosaponin A, Saikosaponin D, verticinone, peimine.

9.
Article in Chinese | WPRIM | ID: wpr-793032

ABSTRACT

OBJECTIVE@#To observe the expression of GABA receptor mRNA in different brain regions of the central nervous system in chronic inflammatory pain rats and the intervention effect of electroacupuncture (EA).@*METHODS@#A total of 48 SPF male SD rats were randomly divided into a blank control group, a model control group, an EA group and a sham EA group, 12 rats in each group. The model of chronic inflammatory pain was established by injecting Freund's complete adjuvant into the foot. The EA group was treated with EA 28 days after the model establishment. The "Housanli" (ST 36) and "Kunlun" (BL 60) were selected and treated with dilatational wave, 2 Hz/100 Hz in frequency, 0.5-1.5 mA for 30 min; EA was given only once. In the sham EA group, the same acupoints were selected but the needles were only inserted into subcutaneous area; EA was connected for 30 min without electrical stimulation. The behavior changes of mechanical pain threshold and thermal pain threshold before model establishment, 1 day, 3 days, 7 days, 14 days, 21 days and 28 days after the model establishment as well as emotional behavior 29 days after the model establishment were observed; the relative expressions of GABA receptor mRNA in anterior cingulate cortex, amygdala and hypothalamus were observed.@*RESULTS@#Compared with the blank control group, the change rates of mechanical pain threshold and thermal pain threshold in the model control group were decreased significantly 1 day, 3 days, 7 days, 14 days, 21 days, 28 days after model establishment (0.05). Compared with the blank control group, the expression of GABA receptor mRNA in the amygdala was decreased significantly in the model control group (<0.01); compared with the model control group and the sham EA group, the expression of GABA receptor mRNA in amygdala was increased after intervention in the EA group (<0.01).@*CONCLUSION@#Single treatment of EA could significantly increase the mechanical pain threshold and thermal pain threshold, improve abnormal emotional behavior in rats with chronic inflammatory pain, which may be related to the increasing of expression of GABA receptor mRNA in the amygdala.

10.
Article in Chinese | WPRIM | ID: wpr-801879

ABSTRACT

Objective:The HPLC fingerprinting of Swertia mussotii was established to study the correlation between chemical components and ecological factors in different areas. Method:The fingerprint of S. mussotii was established by high performance liquid chromatography (HPLC),and the evaluation and analysis were made based on the " Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System 2004A Edition" promulgated by the National Pharmacopoeia Commission. The analysis was carried out on a Wondasil C18 column(4.6 mm×250 mm,5 μm), with methanol-0.2%phosphoric acid as the mobile phase for gradient elution,and the column temperature was set at 30℃. The flow rate was 1.0 mL·min-1, and the detection wavelength was set at 245 nm. And data on ecological factors in each sample habitat, such as climate and soil, were collected. The gray correlation and bivariate analysis were carried out on the chemical constituents and ecological factors of medicinal materials in different areas using DPS data processing system and SPSS 21.0 statistical software. Result:The HPLC fingerprint of S. mussotii was established,a total of 12 common fingerprint peaks were marked, and the chemical constituent of the seven peaks were determined. The chemical constituents, such as swertiamain and mangiferin of S. mussotii, were significantly correlated with ecological factors. Moreover,the chemical constituents were obviously affected by the monthly average temperature range,annual precipitation,precipitation seasonality in the climatic factors,the soil organic carbon ratio and soil pH in the soil factors. Conclusion:The chemical constituents of S. mussotii have a correlation with the external ecological factors,the findings could provide a basis for the artificial planting of the medicinal material and the scientific connotation of the " environment-based" theory for Tibetan medicines.

11.
Article in Chinese | WPRIM | ID: wpr-802266

ABSTRACT

Objective:To assess the anxiolytic effect of Chaimu Anshen granules (CMASG) and investigate its bioactive mechanism. Method:ICR mice were randomly divided into normal group, diazepam group(0.002 g·kg-1),Jieyu Anshen granules group(0.001 4 g·kg-1), high, medium, and low-dose (0.001 98,0.000 99,0.000 495 g·kg-1)Chaimu Anshen granule groups, with 20 mice in each group. To detect the anxiolytic effect of CMASG, mice were intragastrically administered for 4 weeks in the morning, and light-dark box transition test and open field test were performed once the other day. After the behavior tests, blood samples were collected. Six mice of each group were perfused with formalin through heart, and then the brains were fixed for immunohistochemistry test. Hippocampus of the other mice in each group were collected and stored in liquid nitrogen. The content of γ-aminobutyric acid(GABA)and glutamic acid(Glu)in hippocampus and blood samples were detected by enzyme-linked immunosorbent assay (ELISA), and the ratio of GABA/Glu was calculated. The expression of GABAα1 receptor was evaluated by the immunohistochemistry method. To test the hypnosis effect of CMASG, mice were administered intragastrically for 7 days. The sub-threshold dose of pentobarbital sodium in the sleep experiment was tested. Result:Compared with normal group, the light-dark box transitions test demonstrated that low-dose and medium-dose CMASG groups significantly prolonged the duration in light box(PPPPPPPPPPα1 receptor protein in hippocampus showed that the medium-dose CMASG significantly increased the expression of GABAα1 protein. The sub-threshold dose of pentobarbital sodium on sleep experiments confirmed that the medium-dose CMASG significantly increased the rate of sleep in mice. Conclusion:CMASG showed an anxiolytic effect, and its bioactive mechanism was related with the increase of GABA content, and the decrease of Glu content in hippocampus. Furthermore, it increased the expression of GABAα1 protein in hippocampus. The changes in content of GABA and Glu in peripheral blood were positively correlated with the changes in hippocampal tissues, which provided reference for clinical diagnosis. CMASG also exhibited an effect in improvement of sleep.

12.
Journal of Clinical Hepatology ; (12): 1197-1200, 2019.
Article in Chinese | WPRIM | ID: wpr-779099

ABSTRACT

In situ hybridization (ISH) is a new technique which combines molecular biology, histochemistry, and cytology. It can quantify and locate specific nucleic acids at the cellular and chromosomal levels and is widely used in virological research. ISH is of great significance for the detection of hepatitis B virus (HBV) nucleic acids (RNA and replicative intermediate DNA) and covalently closed circular DNA. This article reviews the development of ISH and its application in HBV research.

13.
Article in Chinese | WPRIM | ID: wpr-777530

ABSTRACT

In order to clarify the characteristic components of Berberidis Cortex,the preparative liquid chromatography and spectral analysis methods were used to separate and identify the unknown components in the water extract of Berberidis Cortex. Two compounds were isolated and identified as bufotenidine and ferulic acid 4-O-β-D-glucopyranoside. They were both isolated for the first time from Berberidis Cortex and Berberis. In addition,an HPLC method was successfully established for simultaneously determination of six compounds in Berberidis Cortex,and chemometric methods were used to study the chemical differences among three main species of Berberidis Cortex. The results suggested that jatrorrhizine and bufotenidine are the main difference compounds among the three species.Compared with B. kansuensis and B. diaphana,B. vernae contains significantly more jatrorrhizine(P<0. 01),and the content of bufotenidine in B. vernae was significantly higher than that in B. kansuensis(P<0. 05). Considering these results,further research is necessary to reveal the pharmacological activities of bufotenidine and the pharmacodynamic differences between the three species. The results could provide a reference for quality control,the basic research on effective substances,and development of Berberidis Cortex.


Subject(s)
Berberine , Berberis , Chemistry , Classification , Chromatography, High Pressure Liquid , Phytochemicals , Plant Extracts
14.
China Pharmacy ; (12): 2662-2667, 2019.
Article in Chinese | WPRIM | ID: wpr-817499

ABSTRACT

OBJECTIVE: To study the academic characteristics and connotation of Sichuan Nanpai Tibetan medicine (SNTM), to provide relevant information for the inheritance and development of Nanpai Tibetan medicine, and to provide reference for the development and utilization of commonly used medicinal materials in SNTM. METHODS: The type characteristics, medication frequency, main treatment disease and medication rule of 672 preparations of Tibetan hospital of SNTM were analyzed by means of data mining, statistical analysis and inductive deduction methods of TCM inheritance support system (TCMISS). Based on the core combination drugs, the new prescriptions were evolved by the entropy hierarchical clustering method. RESULTS: A total of 624 medicinal materials were used in formulation of SNTM, involving 509 plant drugs (81.67%), 61 mineral drugs (9.77%) and 54 animal drugs (8.65%). There were 16 medicines with frequency>120; among them, top 3 medicines were Terminalia chebula (57.44%), Carthamus tinctorius (43.15%) and Aucklandia lappa (42.26%). Main treatment diseases involved 13 categories, and top 3 categories were gastric diseases (28.13%), hepatobiliary diseases (12.80%) and neurological diseases (11.90%). In the treatment of stomach diseases, T. chebula, C. tinctorius, Alpinia katsumadai, Piper longum, A. lappa and Punica granatum were mainly used; totally 61 commonly used drug combinations were obtained and the most commonly used combination was P. longum-A. katsumadai. In the treatment of hepatobiliary diseases, T. chebula, C. tinctorius, Herpetospermum caudigerum, Swertia bimaculata, Zhaxun were mainly used; 64 commonly used drug combinations were obtained and the most commonly used combination is T. chebula-C. tinctorius. In the treatment of neurological diseases, Myristica fragrans, T. chebula, A. lappa, Syzygium aromaticum, Aquilaria sinensis, Choerospondias axillaris were mainly used; 73 commonly used drug combinations were obtained, and the most commonly used combination was T. chebula-M. fragrans. 5 candidate new formulations had been evolved by the entropy hierarchical clustering method, involving Lacciferlacca-Lithospermum erythrorhizon-Rubia cordifolia- Punica granatum. CONCLUSIONS: Obtained high frequency drug pairs and evolved new candidate formulation based on the core combinations drugs of SNTM for commonly diseases can provide reference for the development of modern new Tibetan medicines for gastric, hepatobiliary and neurological diseases.

15.
Article in Chinese | WPRIM | ID: wpr-694090

ABSTRACT

Objective To investigate the etiology and clinical features of drug-induced liver injury (DILI).Methods A total of 194 DILI in patients,who underwent liver biopsy in our hospital from January 2015 to December 2015,were enrolled in the study.The etiology,laboratory markers (such as alanine transaminase,aspartate aminotransferase,total bilirubin,gammaglutamyl transferase and alkaline phosphatase),and the pathological features were analyzed retrospectively.Then,all of the patients were followed up every 3 or 6 months,with a mean of 34.5 months.The risk factors associated with relapse,which was defined as liver enzymes (such as ALT or TBIL) rising at least 2 times of its upper limit of normal value (ULN),were analyzed with a logistic regression model.Results In terms of etiology,Traditional Chinese medicine (TCM) was the most common cause of DILI,which accounted for 46.9% of patients,in return followed by acetaminophen-containing drugs (14.4%),antibiotics (9.3%),environmental toxins (4.6%),antidepressant (4.6%),dietary supplement (3.1%),lipid-lowering drugs (3.1%),chemotherapeutic agents (2.6%,and others unknown (11.3%).Of 194 DILI patients,hepatocellular type was observed in 78(40.2%) patients,cholestatic type in 63(32.5%),and mixed type in 53(27.3%).Histological findings showed that 70(36.1%) patients had an acute injury,124(63.9%) chronic damages,which composed by G0(9.8%),G,(19.1%),G2(21.6%),G3(9.8%),and G4(3.6%) in terms of inflammation level.Twenty-seven cases (21.8%) relapsed after discharge from hospital,multivariate analysis showed that cholinesterase is an independent risk factor which might predict the relapse of DILI patients.Conclusions The incidence of DILI is increasing,especially induced by TCM,therefore clinicians should master the clinical features of the disease in order to achieve correct diagnosis and establish the optimal treatment strategy.

16.
Chinese Journal of Cardiology ; (12): 32-38, 2018.
Article in Chinese | WPRIM | ID: wpr-809783

ABSTRACT

Objective@#To evaluate the efficacy of paclitaxel-coated balloon for de novo coronary lesions with diameters ≥ 2.8 mm.@*Methods@#This prospective study included 215 consecutive patients with 238 de novo lesions, who received paclitaxel-coated balloon angioplasty in Beijing Hospital from May 2014 to June 2016. According to the reference vessel diameter, the patients were divided into large vessel disease (LVD) group (reference vessel diameter≥2.8 mm, 85 patients and 90 lesions) and small vessel disease (SVD) group (reference vessel diameter<2.8 mm, 130 patients and 148 lesions). Clinical characteristics, interventional procedures and major adverse cardiovascular events (includingall-cause mortality, non-fatal myocardial infarction and target lesion revascularization) after procedure were compared between the 2 groups.@*Results@#(1)Patients in LVD group were younger than SVD group ((60.1±11.1) years old vs. (65.0±10.6) years old, P<0.01), and less patients had diabetes (24.7% (21/85) vs. 43.1%(56/130), P<0.01).(2)Prevalence of three-vessel disease (35.5%(30/85) vs. 53.6%(67/130), P<0.05) and complex lesions (type B2/C,34.4% (31/90) vs. 50.0%(74/148), P<0.05) were significantly lower in LVD group than in SVD group.(3) During pre-dilation, the rate with plain balloons use was significantly higher in SVD group than in LVD group(76.4%(113/148) vs. 58.9%(53/90), P<0.01), while the proportion of additional use of non-compliant balloons was significantly higher in LVD groupthan in SVD group(20.0% (18/90) vs. 3.4% (5/148) , P<0.01). The ratio of paclitaxel-coated balloon diameter/RVD was significantly lower (0.87±0.12 vs. 0.96±0.15, P<0.01) and the duration of dilationwas significantly shorter ((41.5±9.5) seconds vs. (45.1±9.1) seconds, P<0.01) in LVD group than those in SVD group. Each group had 1 failure case that was bailout stented with drug-eluting stents. The success rate of paclitaxel-coated balloon treatment was similar in LVD group and SVD group (98.9% (89/90) vs. 99.3%(147/148), P>0.05).(4) At the fourth day of procedure, there was 1 acute myocardial infarction requiring emergent target lesion revascularization in SVD group. No major adverse cardiovascular event was observed in LVD group during hospitalization. Forty-two patients with 53 lesions, including 27 LVD lesions and 26 SVD lesions,underwent coronary angiography at (9.4±4.6) months after paclitaxel-coated balloon intervention. The quantitative coronary angiography analysis showed that minimal lumen diameter significantlyincreased during follow-up than that of post-procedurein SVD group ((1.71±0.36)mm vs. (1.52±0.30)mm, P<0.05) , while in LVD group the minimal lumen diameter was similar between during follow-up and post-procedure ((2.35±0.48)mm vs. (2.19±0.34)mm, P>0.05). Major adverse cardiovascular event rate was 0 in LVD group and 2.3%(3/130) in SVD group (P>0.05) during follow up. No death was observed in this patient cohort.@*Conclusion@#Treatment with paclitaxel-coated balloon for de novo coronary lesions with diameters≥2.8 mm is safe and effective.

17.
Article in Chinese | WPRIM | ID: wpr-712961

ABSTRACT

[Objective] The aim of our study is to examine nodule prevalence in a population over 40 years old in order to explore the relation between prevalence of thyroid nodules and metabolic parameters.[Methods] A total of 1875 individuals who were over 40 years of age were received the questionnaire and underwent thyroid ultrasonography examinations.Height,weight,waist circumference,blood pressure were measured.Levels of fasting blood glucose,fasting serum insulin,glycated hemoglobin,blood lipids,thyroid stimulating hormone and free T4 were detected.Body mass index (BMI) and homeostasis model assessment-insulin resistance (HOMA-IR) were calculated.[Result] The study included a total of 1875 subjects (513 men and 1362 women).The age of subjects were between 41 and 113 years old,and the mean age was 57.4±7.1 years old.The prevalence of thyroid nodules was 51.2%,and the prevalence of thyroid nodules in women was significantly higher than that in men (53.4% vs.45.2%,P=0.002).The prevalence of thyroid nodules was significantly higher in subjects with hypertriglyceridemia (59.2% vs.49.5%,P=0.009) and hypertension (56.5% vs.47.8%,P< 0.001).Result of multivariate binary logistic regression revealed that hypertension (OR=1.405,P=0.002),female sex (OR=1.490,P=0.001),older age (OR=1.028,P<0.001),and hypertriglyceridemia (OR=1.589,P=0.005) were independent risk factors for thyroid nodules.The prevalence of thyroid nodules increased along with age,systolic blood pressure and serum triglyceride level.[Conclusion] The prevalence of thyroid nodules and metabolism-related diseases were high in population over 40 years old.After adjusted for age and sex,hypertriglyceridemia and hypertension were possible independent risk factors for thyroid nodules especially in women.In general,hypertriglyceridemia and hypertension might play an important role in the pathological process of thyroid nodules.

18.
International Eye Science ; (12): 2103-2105, 2018.
Article in Chinese | WPRIM | ID: wpr-688410

ABSTRACT

@#AIM: To evaluate the clinical effect of wearing bandage lens after pterygium excision combined with corneal stem cell transplantation. <p>METHODS: This study was a prospective analysis. Totally 110 cases 110 eyes of pterygium excision combined with corneal stem cell transplantation admitted to our hospital from August 2015 to February 2018 were randomly divided into control group and observation group with 55 cases in each group. Patients in observation group wore bandage lens after operation. Visual analogue scale(VAS)was used to evaluated the pain 1, 3d and 1wk after operation. Fluorescein staining(FL)was used to evaluate the corneal epithelial healing and the incidence of complications. <p>RESULTS: The VAS score and corneal epithelial healing score of the observation group were significantly lower than those of the control group at 1, 3d and 1wk after operation(<i>P</i><0.05). There was no difference in the incidence of complications between the two groups(<i>P</i>>0.05). <p>CONCLUSION: It is safe and effective to wear bandage lens after pterygium excision combined with corneal stem cell transplantation. It can relieve pain and promote epithelial healing after pterygium operation.

19.
Article in Chinese | WPRIM | ID: wpr-687333

ABSTRACT

Fecal Tibetan medicines have a long history of application in China, with a good clinical efficacy. In order to promote the development and modernization of these medicines, we consulted ancient and modern Tibetan medicine literatures to collect and summarize the names, original species, natures, flavor, functions and processing methods of fecal Tibetan medicines. A total of 35 fecal Tibetan medicines were collected, such as Jiufen, Heibingpian, Langfen, Mafen, Goufen, Gezifen. The most commonly used medicines were Jiufen and Heibingpian. Both were mainly used for the treatment of indigestion, food abdominal distension, gastric ulcer, and other gastrointestinal diseases. At present, there are only a few studies on the active ingredients, pharmacodynamics and mechanism of action of these medicines. Therefore, further study shall be conducted. The regulation of gut microbiota may be a new way to evaluate the effectiveness of fecal Tibetan medicines and their mechanism of action.

20.
Article in Chinese | WPRIM | ID: wpr-852100

ABSTRACT

Objective: To analyze the chemical constituent cluster of decoction of Sanguisorba Radix systemically by HPLC-IT-TOF/MS. Methods: The samples were scanned by broad spectrum of DAD detector and ionized in negative and positive environment of electron spray ionization. Results: A total of 82 chemical constituents (include isomers) were identified based on exact molecular mass, fragment, ultraviolet spectrum as well as the combination of the database. The chemical constituent cluster was composed of 69 phenolics, 8 triterpenes, 3 flavonoids, an organic acid, and a monoterpene glycoside, of which citric acid, brevifolin carboxylic acid, methoxybenzoic acid methyl ester-5-O-sulfate, isorhamnetin-sulfate, and methylellagic acid-sulfate, et al were firstly found in Sanguisorba Radix. Conclusion: The systemical analysis of the chemical constituent cluster of decoction of Sanguisorba Radix was able to supply a clear material basis for the further study of efficacy and pharmaceutical metabolism of Sanguisorba Radix.

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