Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.868
Filter
1.
Acta Pharmaceutica Sinica ; (12): 392-398, 2022.
Article in Chinese | WPRIM | ID: wpr-922919

ABSTRACT

Numerous in vitro studies have shown that most pyrrolizidine alkaloids (PAs) are hepatotoxic after being metabolically activated by cytochrome P450 (CYP) 3A4. However, the key role of CYP3A4 has not been confirmed in vivo. Therefore, the CYP3A4 chemical inhibitor ritonavir was employed in this work and the effect of ritonavir on Gynura japonica-induced liver injury in rats was investigated. All experiments were approved by the Animal Research Committee of Shanghai University of Traditional Chinese Medicine. Animal welfare and the animal experimental protocols were strictly consistent with related ethics regulations of Shanghai University of Traditional Chinese Medicine. Acute liver injury was induced by a single gavage of Gynura japonica extracts (GJE, 8 g·kg-1); rats in the protection group were gavaged with ritonavir (RIT, 30 mg·kg-1) 1 h before GJE treatment. The results show that RIT could significantly attenuate GJE-induced liver injury in rats. Rats in the protection group showed decreased serum activities for alanine aminotransferase and aspartate aminotransferase, as well as lower total bile acids. In addition, the infiltration of inflammatory cells, sinusoidal hemorrhage, and hepatic necrosis in GJE-treated rats were markedly attenuated in the protection group. The content of pyrrole-protein adducts (PPAs), a recommended biomarker for PA-induced hepatotoxicity in clinics, was determined at 10 min to 24 h after GJE treatment. The content of 13 bile acids was also quantified. RIT treatment reduced the content of PPAs in serum dramatically and restored the impaired bile acid homeostasis caused by GJE. These studies indicate that RIT attenuated Gynura japonica-induced liver injury in rats, which was closely related to the inhibition of the metabolic activation of PAs and the regulation of bile acid metabolism. These results provide a better understanding of the relationship between CYP3A4 and PA-induced toxicity. This work will also be helpful in developing effective treatments for PA-induced liver injury and making a reasonable evaluation of the safety of drugs containing PAs in clinic.

2.
Acta Pharmaceutica Sinica ; (12): 757-765, 2022.
Article in Chinese | WPRIM | ID: wpr-922876

ABSTRACT

UHPLC-Q-TOF/MS metabonomics technology was used to clarify the metabolic regulation pathways by which Platycodon total saponins (PTS) exert antitussive and expectorant effects in a mouse cough model, in which coughing is induced by concentrated ammonia, and in a phenol red excretion model. After approval by the Experimental Animal Ethics Committee of Jiangxi University of Chinese Medicine (Approval No. JZLLSC-20190235), the mice were randomly divided into a normal group, a model group, a positive drug group and a PTS group. Endogenous metabolites in mouse serum were identified by UHPLC-Q-TOF/MS. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were used for multivariate analysis. Metabolic pathways were analyzed by the Metaboanalyst platform. The results show that PTS can significantly prolong the cough latent period and cough frequency of mice, and significantly increase phenol red excretion. UHPLC-Q-TOF/MS identified 19 metabolites related to cough, and PTS significantly decreased 16 of them; 17 metabolites related to expectoration were identified, and PTS decreased the levels of all. Metabolic pathway analysis showed that linoleic acid metabolism, arachidonic acid metabolism and glycerophospholipid metabolism were the main pathways involved in serum metabolite changes in this mouse cough model. Linoleic acid metabolism, phenylalanine, tyrosine and tryptophan biosynthesis, arachidonic acid metabolism, phenylalanine metabolism and α-linolenic acid metabolism were the main pathways involved in serum metabolite changes in the phenol red excretion model. This study is the first to elucidate the regulation of antitussive and expectorant metabolic pathways and the effect of PTS on these pathways.

3.
Article in English | WPRIM | ID: wpr-880548

ABSTRACT

OBJECTIVE@#To evaluate whether the efficacy of Getong Tongluo Capsule (, GTC, consisted of total flavone of Radix Puerariae) on improving patients' quality of life and lowering blood pressure are superior to the extract of Ginkgo biloba (EGB) for patients with convalescent-phase ischemic stroke and primary hypertension.@*METHODS@#This randomized, positive-drug- and placebo-controlled, double-blind trial was conducted from September 2015 to October 2017. Totally 477 eligible patients from 18 hospitals in China were randomly assigned in a 2:1:1 ratio to the following interventions, twice a day for 12 weeks: (1) GTC 250 mg plus EGB-matching placebo 40 mg (237 cases, GTC group), (2) EGB 40 mg plus GTC-matching placebo 250 mg (120 cases, EGB group) or (3) GTC-matching placebo 250 mg plus EGB-matching placebo 40 mg (120 cases, placebo group). Moreover, all patients were orally administered aspirin enteric-coated tablets 100 mg, once a day for 12 weeks. The primary outcome was the Barthel Index (BI). The secondary outcomes included the control rate of blood pressure and National Institutes of Health Stroke Scale (NIHSS) scores. The incidence and severity of adverse events (AEs) were calculated and assessed.@*RESULTS@#The BI relative independence rates, the clinical recovery rates of NIHSS, and the total effective rates of NIHSS in the GTC and EGB groups were significantly higher than the placebo group at 12 weeks after treatment (P0.05). The control rate of blood pressure in the GTC group was significantly higher than the EGB and placebo groups at 12, 18 and 24 weeks after treatment (P0.05).@*CONCLUSION@#GTC exhibited significant efficacy in improving patients' quality of life as well as neurological function and controlling hypertension. (Registration No. ChiCTR1800016667).

4.
Article in Chinese | WPRIM | ID: wpr-888322

ABSTRACT

OBJECTIVE@#To investigate the application value of liquid crystal digital display goniometer in total hip arthroplasty.@*METHODS@#From January 2018 to December 2019, 83 patients underwent primary total hip arthroplasty, including 28 males and 55 females, aged 42 to 81 (70.4±7.9) years. There were 63 cases of femoral neck fracture and 20 cases of avascular necrosis of femoral head. All patients used liquid crystal digital goniometer to control the anteversion of acetabular cup prosthesis during operation, and CT scanning was used to measure the anteversion of acetabular cup after operation. The two methods were compared to understand the accuracy of using liquid crystal digital goniometer.@*RESULTS@#Postoperative CT measurement showed that the acetabular anteversion of all patients was in the safe area advocated by Lewinnek. The anteversion angle of acetabular cup measured by liquid crystal digital goniometer was 14.20(12.80 to 15.40)°, and the anteversion angle of acetabular cup measured by postoperative CT scan was 14.20 (13.40 to 15.50)°. There was no significant difference between the two (@*CONCLUSION@#It is an accurate and reliable method to control the anteversion of acetabular cup with liquid crystal digital display angle instrument, which has a good auxiliary reference value.


Subject(s)
Acetabulum/surgery , Arthroplasty, Replacement, Hip , Female , Hip Prosthesis , Humans , Liquid Crystals , Male , Retrospective Studies
5.
Article in Chinese | WPRIM | ID: wpr-888083

ABSTRACT

As recorded, agarwood has the function of improving qi reception and relieving asthma, but the underlying mechanism is unclear and rarely reported. Therefore, this study explored the anti-asthmatic effect of the alcohol extract of agarwood produced by the whole-tree agarwood-inducing technique(Agar-Wit) in the asthma mouse model induced by intraperitoneal injection of ovalbumin(OVA) + Al(OH)_3 combined with intranasal administration of OVA and the mechanism, and compared the anti-asthmatic effects of agarwood induced with different methods. Firstly, the anti-inflammatory and anti-asthmatic effects of Agar-Wit agarwood in mice were evaluated based on the asthma frequency, lung tissue injury, and peripheral inflammatory white blood cell(WBC) count and eosinophil count. Then, the levels of interleukin-1β(IL-1β), IL-17, and IL-10 in serum of mice were detected by enzyme-linked immunoassay(ELISA) and the expression of inflammation-and apoptosis-related genes in tissues was measured by reverse transcription polyme-rase chain reaction(RT-PCR) so as to preliminarily explore the anti-asthmatic mechanism. RESULTS:: showed that the alcohol extract of Agar-Wit agarwood significantly reduced asthma frequency, relieved pathological injury, improved peripheral WBC count and eosinophil count, decreased the levels of inflammatory cytokines IL-1β and IL-17, elevated the level of anti-inflammatory cytokine IL-10, and down-regulated the mRNA expression of IL-1 R, tumor necrosis factor receptor R(TNFR), nuclear transcription factor-kappa B(NF-κB), Bax, and caspase 3, but had no significant influence on the expression of high-mobility group box 1(HMGB1) protein, caspase 8, and Bcl-2. The effect of Agar-Wit agarwood alcohol extract was better than that of wild agarwood alcohol extract and alcohol extract of agarwood induced with the burning-chisel-drilling method at the same dose. In conclusion, Agar-Wit agarwood can significantly alleviate inflammation and asthma, which is related to its anti-inflammation and anti-apoptosis activity.


Subject(s)
Animals , Anti-Asthmatic Agents , Asthma/drug therapy , Bronchoalveolar Lavage Fluid , Disease Models, Animal , Lung , Mice , Mice, Inbred BALB C , NF-kappa B , Ovalbumin , Plant Extracts/therapeutic use
6.
Article in Chinese | WPRIM | ID: wpr-888014

ABSTRACT

The volatile oil of Curcumae Rhizoma has many active components,which are the key to the quality of Curcumae Rhizoma. Exploring the difference between volatile oil of different kinds of Curcumae Rhizoma facilitates the quality control and rational application of resources. In this study,GC-MS was applied to realize online qualitative and semi-quantitative analysis of the chemical composition spectrum of volatile oil from Curcuma wenyujin( CW),C. phaeocaulis( CP),and C. kwangsiensis( CK). Forty components were identified and their fingerprints were compared and evaluated. Hierarchical cluster analysis( HCA),principal component analysis( PCA),and orthogonal partial least squares discrimination analysis( OPLS-DA) were adopted to analyze the overall and outlier data. The results showed that the whole data could be divided into three kinds according to each analysis mode,and the volatile components of Curcumae Rhizoma vary greatly among species. PCA explored the difference between outliers and the mean value of the group and found that some volatile oils from CW may be greatly affected by the origin. By OPLS-DA,the samples from Zhejiang were able to gather,but those from Guizhou remained isolated,indicating the influence of growing environment on Curcumae Rhizoma metabolites. Based on VIP results combined with the heat map,characteristic volatile oil components of Curcumae Rhizoma from different varieties were screened out: curdione and linalool for CW; 2-undecanone for CP; humulene,γ-selinene,and zederone for CK. The GCMS method established in this study describes Curcumae Rhizoma samples comprehensively and accurately,and the characteristic components screened based on chemometrics can be used to distinguish Curcumae Rhizoma from different varieties and give them unique pharmacodynamic significance,which is fast,convenient,stable,and reliable and supports the rational application of Curcu-mae Rhizoma resources. It is found that the region of origin has great influence on CW,which is worthy of further study.


Subject(s)
Curcuma , Gas Chromatography-Mass Spectrometry , Oils, Volatile , Principal Component Analysis , Rhizome
7.
Chinese Medical Journal ; (24): 1465-1470, 2021.
Article in English | WPRIM | ID: wpr-878196

ABSTRACT

BACKGROUND@#Disease activity indices (DAIs) including disease activity score 28 (DAS28), simplified disease activity index (SDAI), and clinical disease activity index (CDAI) have been widely used in clinical practice and research studies of rheumatoid arthritis (RA). The objective of our study was to evaluate the correlation and concordance among different DAIs in Chinese patients with RA.@*METHODS@#A cross-sectional study, including patients enrolled in the Chinese registry of rheumatoid arthritis from November 2016 to August 2018, was conducted. The correlations were evaluated using Spearman correlation coefficient and concordance with Bland-Altman plots, quadratic weighted kappa, and discordance rates in the crosstab. For other indices, the optimal cutoff points corresponding to SDAI remission were explored through receiver operating characteristic curve analysis.@*RESULTS@#A total of 30,501 patients were included, of whom 80.46% were women. Most individuals were with moderate disease activity or high disease activity. High correlations among DAS28-erythrocyte sedimentation rate (ESR) and DAS28-C-reactive protein (CRP), SDAI and CDAI were observed. Similarly, the weighted kappa value among the indices was high. In Bland-Altman plots, a positive difference between DAS28-ESR and DAS28-CRP was observed, with an absolute difference of >1.2 in 3079 (10.09%) patients. In crosstab, approximately 30% of the patients were classified into different groups. Concordance values between SDAI remission and the optimal cutoff points of DAS28-ESR, DAS28-CRP, and CDAI were 3.06, 2.37, and 3.20, respectively.@*CONCLUSIONS@#Although DAIs had high correlations and weighted kappa values, the discordance between DAIs was significant in Chinese patients with RA. The four DAIs are not interchangeable.


Subject(s)
Antirheumatic Agents/therapeutic use , Arthritis, Rheumatoid/drug therapy , China , Cross-Sectional Studies , Female , Humans , Male , Registries , Severity of Illness Index
8.
Article in Chinese | WPRIM | ID: wpr-912468

ABSTRACT

Objective:To explore application status and development trend of spinal muscular atrophy (SMA) genetic diagnosis technology based on the national rare diseases registry system of China.Method:A total of 200 SMA children registered at the Capital Institute of Pediatrics from July 2016 to December 2018 were included in this retrospective cross-sectional survey. The basic data, clinical subtypes, genotypes, and related genetic testing information of SMA children were obtained by checking SMA registration information, genetic testing reports, and also by telephone follow-up. The patient number and the composition of different genetic diagnosis technologies were analyzed by the stratification of genetic testing at various time. The correlation between the proportion of genetic diagnosis technology and genetic testing time was analyzed with Pearson correlation analysis.Result:There were 3 SMA cases with incomplete data, the remaining 197 SMA cases were included in this study. There were 37 (18.8%), 115 (58.4%) and 45 (22.8%) patients with type Ⅰ, Ⅱ and Ⅲ SMA, respectively. There were 185 cases of SMN1 homozygous deletion (93.9%), and 12 cases with compound heterozygotes (6.1%). Seven SMA-related genetic technologies were used from 2004 to 2017. MLPA accounted for 54.1% (100/185) used approach, followed by PCR-RFLP and first-generation sequencing, which accounted for 22.7% (42/185) and 10.3% (19/185), respectively. Nine, 6, 5 and 4 cases were tested with AS-PCR, qPCR, WES and DHPLC, respectively (2.2%-4.9%). The proportion of MLPA increased gradually since 2010 ( r=0.95, P<0.05), while PCR-RFLP declined gradually since 2004 ( r=-0.99, P<0.05). No correlation was found between technology and testing time for other genetic testing technologies ( P>0.05). The proportion of quantitative genetic technologies (MLPA, qPCR and DHPLC) increased gradually since 2010 ( r=0.94, P<0.05), and qualitative genetic technologies (PCR-RFLP, first-generation sequencing, AS-PCR and WES) decreased gradually since 2004 ( r=-0.94, P<0.05). The duplication detection rates of homozygous deletion and compound heterozygous mutation were 12.4% (23/185) and 41.7% (5/12), respectively (χ 2=5.86, P<0.05). During 2008-2015, the proportion of "the reports of both copy numbers of SMN1 gene and SMN2 gene" increased from 56.8% (21/37) in 2008-2015 to 69.1% (56/81) in 2016-2017. Conclusion:Genetic diagnosis of SMA has gradually developed from qualitative detection technology to quantitative detection technology, such as MLPA and qPCR, in China. In more and more SMA quantitative test reports, quantitative results of SMN2 gene are also provided in addition to quantitative results of SMN1 gene.

9.
Article in Chinese | WPRIM | ID: wpr-912076

ABSTRACT

Objective:To research the metabolomic alterations of human lung bronchial epithelial cells infected with human rhinovirus 1B (HRV1B).Methods:Untargeted metabolomics was used to determine the metabolomic alterations in human lung bronchial epithelial cells (BEAS-2B) 6 h, 12 h and during the dynamic process (6 h∶12 h) after HRV1B infection.Results:A total of 93 differentially significant metabolites (DSMs) (47 DSMs were up-regulated and 46 DSMs were down-regulated) and 88 DSMs (37 DSMs were up-regulated and 51 DSMs were down-regulated) at post infection of HRV1B in BEAS-2B at 6 h or 12 h, respectively. A total of 30 DSMs (12 DSMs were up-regulated and 18 DSMs were down-regulated) in a dynamic process (6 h∶12 h) after HRV1B infection. Unknown metabolites took up most proportions. The trends of fatty acid, lipid, amino acid, nucleotide and carbohydrate were increased along with the prolonging of HRV1B infection. DSMs such as Diisononyl phthalate was co-detected DSMs among three groups.Conclusions:Metabolites such as fatty acid, lipid, amino acid, nucleotide and carbohydrate of BEAS-2B cells are changed induced by HRV1B infection.

10.
Article in Chinese | WPRIM | ID: wpr-912040

ABSTRACT

Objective:To determine any effect of repeated thermal stimulation on the viability and functioning of inflamed human umbilical vein endothelial cells (HUVECs).Methods:Well-cultured HUVECs were divided into a normal group, a model group, a thermal stimulation 5 times group (group A), a thermal stimulation 9 times group (group B) and a thermal stimulation 13 times group (group C) and cultured under the same conditions. The normal group was not given any intervention. The model group was stimulated with 1μg/mL lipopolysaccharide for 1 hour. Groups A, B and C were first subjected to 5, 9 and 13 rounds of repeated thermal stimulation, each round lasting 4 minutes at 43℃ and 1 minute at room temperature. They were then incubated for one hour at 37℃ under a 5% CO 2 atmosphere with 1μg/mL lipopolysaccharide. Cell viability and the expression of NF-κB were evaluated using methyl thiazolyl tetrazolium and immunofluorescence assays. The levels of intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) were determined by enzyme-linked immunosorbent assay. Results:After the intervention, the average cell viability of the model group and of groups A and C was significantly lower than that of the normal group, while that of group B was significantly higher. After the intervention, the average NF-κB expression in the normal group was significantly different from that in the others, with group B′s level significantly different from that of the model group. After the treatment, the average expression of ICAM-1 and VCAM-1 in the model group had increased significantly, while that in groups A, B and C had decreased significantly compared with the normal group. The levels of groups A, B and C were then significantly different from that of the model group. The average ICAM-1 level of group B was significantly different from those of groups A and C.Conclusions:Repeated thermal stimulation can protect inflamed HUVECs and reduce the expression of HUVEC adhesion molecules.

11.
Chinese Journal of Neurology ; (12): 788-793, 2021.
Article in Chinese | WPRIM | ID: wpr-911791

ABSTRACT

Objective:To analyze the clinical phenotype and gene mutation characteristics in a family of myoclonus-dystonia caused by epsilon-sarcoglycan (SGCE) gene mutation in order to improve the understanding of the disease.Methods:The clinical data of a family with myoclonus-dystonia from the Shaanxi Provincial People′s Hospital in August 2019 were collected. The proband was confirmed by generation sequencing techniques to detect possible pathogenic mutations and the Sanger test was used in the family members, and the mutation characteristics of SGCE gene were analyzed and the clinical features were summarized.Results:The proband, a 46-year-old man, presented with spasmodic torticollis accompanied with involuntary movements of the extremities (especially on the left). A gene mutation of c.1011delA at the chr7:94229984 was identified by genetic testing in the SGCE gene, which is an unreported frameshift mutation at home and abroad. Sanger sequencing revealed the same mutation site in the proband′s eldest sister, second elder brother and his grandnephew, who pessented similar symptoms as the proband including myoclonus and dystonia. The proband′s younger niece and grandniece were a mutation carrier without obvious symptoms.Conclusions:SGCE myoclonus-dystonia is a rare autosomal dominant inherited disorder characterized by the presentation of both myoclonic jerks and dystonia, which shows clinical heterogeneity and maternal imprinting. Genetic testing confirmed the diagnosis of SGCE myoclonus-dystonia and the pathogenic mutation c.1011delA in the SGCE gene.

12.
Article in Chinese | WPRIM | ID: wpr-911416

ABSTRACT

To evaluate the impact of the depth of lipohypertrophy on glycemic control in diabetic patients, 498 diabetic patients were recruited from July 2017 to July 2020 in the First Affiliated Hospital of Nanjing Medical University. Their demographic and clinical data were collected. Lipohypertrophy was assessed with ultrasound. 85.1%(424/498) of patients had lipohypertrophy. The average depth of lipohypertrophy was(5.62±2.49) mm. Compared with HbA 1C≤7%, patients with HbA 1C>7% had significantly higher proportion of lipohypertrophy with depth >5 mm(69.7% vs 81.3%, P<0.05). After adjusting potential confounders, the level of HbA 1C in patients with the depth of lipohypertrophy>5 mm was still significantly higher than those with the depth of lipohypertrophy≤5 mm( OR=1.716, 95% CI 1.104-2.668, P<0.05). The depth of lipohypertrophy may be an independent risk factor for suboptimal HbA 1C. However, prospective studies are still needed to confirm.

13.
Chinese Journal of Rheumatology ; (12): 433-440, 2021.
Article in Chinese | WPRIM | ID: wpr-910191

ABSTRACT

Objective:To investigate the distribution of blood concentration of cyclosporine (CsA) in patients with autoimmune disease in China, and analyze the effect of genetic polymorphisms of CsA-metabolizing enzymes, transporters and target enzymes on CsA levels.Methods:Steady-state trough blood concentrations (CsA C 0) of 193 patients' were detected by enzyme multiplied immunoassay technique. The genotype of the following sites in the included patients were sequenced by reverse transcription-polymerase chain reaction (RT-PCR): cytochrome P450 (CYP) 3A420230C>T, CYP3A56986A>G, ATP binding cassette subfamily B member 1 (ABCB1)1236C>T, ABCB12677G>T/A, ABCB13435C>T, cytochrome P450 oxidoreductase (POR) 1508 C>T and formyl peptide receptor 1 (FPR1) C>G were sequenced by RT-PCR. The influence of the gene polymorphism of the above-mentioned sites on the blood concentration of CsA was analyzed by using One-way analysis of variance (ANOVA), LSD- t test, Chi-square test. Results:One hundred and ninety-three patients included took CsA. The doses ranged from 75-200 mg/d and the patients' blood concentration distribution span was wide (33.0-313.8 ng/ml). The daily dose ( χ2=21.908, P=0.001) and age( F=4.262, P=0.006) had significant effect on the plasma concentration of CsA. ABCB12677G>T/A (rs2032582) gene polymorphism impacted on the unit dose of CsA C 0 (CsA C 0/d), CsA C 0/d [(0.81±0.42) ng·ml -1·mg -1] in wild type (GG) was higher than heterozygous mutant [GT/GA, (0.65±0.30) ng·ml -1·mg -1, P=0.023) and homozygous mutant (TT/AA/TA, (0.66±0.34) ng·ml -1·mg -1, P=0.039). Conclusion:The blood concentration of patients varies greatly among individuals. The Cold of CsA in wild type patients with ABCB12677G>T/A gene is signifficantly higher than that in mutant patients.

14.
Chinese Journal of Endemiology ; (12): 756-760, 2021.
Article in Chinese | WPRIM | ID: wpr-909092

ABSTRACT

Echinococcosis is a zoonotic epidemic parasitic disease, which is caused by the infection with larvae of Echinococcus in humans, and the disease is also known as hydatid disease. The liver and lung are the most vulnerable organs. Aspergillus is a saprophytic fungus. Aspergillus infection is common in patients with immune deficiency. Pulmonary echinococcosis complicated with Aspergillus infection is very rare in patients with normal immune function. It is a case report in the literature at home and abroad. A case of bilateral isolated pulmonary echinococcosis complicated with Aspergillus infection with normal immune function and no other accompanying diseases admitted to Lanzhou University Second Hospital is reported as follows, and literature review is conducted in combination with Chinese and foreign literatures, so as to provide some reference value for diagnosis and treatment of this kind of disease.

15.
Article in Chinese | WPRIM | ID: wpr-907399

ABSTRACT

Objective:To establish a motion planning method for avoiding singularities for manipulator-assisted puncture surgery navigation, and design the corresponding computer program.Methods:According to the actual operation and the need of clinicians, the puncture needle sleeve installed at the end of the UR3 robotic arm was designed, and the kinematics analysis and simulation verification of the robotic arm were performed. A calculation program for solving the movement pose when the puncture needle at the end of the robotic arm reaches the target position, and a motion planning program for avoiding singularities through small-angle rotation were programmed.Results:Six groups of joint angles were randomly selected, and the theoretical coordinates calculated by the program were compared with the actual coordinates. The result showed that the error between the theoretical value and the actual value was small, which proved the correctness of the kinematics model. In the verification experiment, 3 sets of initial poses at random were simulated, the best pose was obtained by the program. Then the pose was transmitted into the control system to control the movement of the robotic arm. The verification experiment results showed that the puncture needle can reach the target point, and the singularity can be effectively avoid by the small-angle rotation of the fixed central axis.Conclusions:The singular point avoidance method based on end posture rotation can effectively avoid the failure of initial target posture motion planning, and it has reference value for the application of manipulator in puncture surgery.

16.
Article in Chinese | WPRIM | ID: wpr-907175

ABSTRACT

Objective: To study the economic burden of Crohn’s disease and its related factors,and to provide opinions for reducing personal burden and improving reimbursement policy. Methods: Using a cross-sectional method,a self-created questionnaire based on the basic principles of health services research was used to survey Crohn’s disease patients served by the Shanghai volunteer service foundation platform. Information collected included basic characteristics,therapy,and medical costs related to Crohn’s disease in the past 12 months. Descriptive statistics were used to analyse the composition of inpatient and outpatient costs of Crohn’s disease for treatment of the disease in the past year. Further,a semi-logarithmic model was constructed to analyse the factors associated with the financial burden of Crohn’s disease. Results: In the study,820 questionnaires were distributed and 799 questionnaires were returned,of which 797 were valid. There were 528(66.25 %) males and 269 (33.75 %) females. The mean age of the patients was(34. 02 ±11.49) years,with a concentration between 18-39 years (510 cases,63. 99%) and a mean disease duration of (5.58±5.13) years. 10.7% of the patients did not receive continuous treatment,and the average annual treatment cost for the patients with continuous treatment was 54 246 Yuan,of which 30 279 Yuan(55 .8%) was paid by the individuals and 23 966 Yuan (44.2%)was paid by the insurance. The personal financial burden was close to the national per capita disposable income in 2020,which was 32 189 Yuan ( 94. 1%),exceeding the annual cost for type 2 diabetes in China in 2016,8 245 Yuan. In terms of the distribution of outpatient and inpatient services,the average annual cost of inpatient services was 31 092 Yuan, of which 14673 Yuan(48.5%) was paid out of pocket by the individuals and 16 418 Yuan (51 .5%) was paid by the insurance; the average annual cost of outpatient services was 23 154 Yuan,of which 15 606 Yuan (65.1%) was paid out of pocket by the individuals and 7 548 Yuan 34.9%) was paid by the insurance. The personal burden of outpatient care was higher than of inpatient care. The regression results of the semi-logarithmic model showed that the total annual treatment cost was related to the duration of illness (β=0. 03,P<0.01), having complications(β=-0. 68,P<0.01),receiving surgical treatment (β=0. 52,P<0.01),using immunosuppressive drugs(β=0.51,P<0.01),annual outpatient visits(β=0. 02,P<0.01), and number of hospitalizations per year(β=0. 08,P<0.01). Conclusion: The annual financial burden for patients with Crohn’s disease is heavy and rises significantly with the duration of illness,exceeding that of chronic diseases such as diabetes. The personal financial burden is close to the national per capita disposable income,and the medical security department should develop policies to reduce the financial burden. The inclusion of Crohn’s disease as a special outpatient disease is a possible measure that could be considered in response to the fact that the outpatient personal financial burden is heavier than the inpatient’s.

17.
Acta Pharmaceutica Sinica ; (12): 3377-3384, 2021.
Article in Chinese | WPRIM | ID: wpr-906819

ABSTRACT

In recent years, the focus of anti-cancer agents has gradually shifted from cytotoxic chemotherapy to molecular-targeted agents that interfere with frequently overexpressed or mutated molecules in cancer cells. Compared with cytotoxic chemotherapy, molecular-targeted therapy is a new biological therapy with higher specificity and lower toxicity, however, the adverse reactions caused by molecular-targeted agents cannot be ignored. Diarrhea is one of the most common adverse drug reactions, which could seriously affect the quality of life and even lead to treatment discontinuation and consequently decreased cancer control. To provide a reference for relevant research and clinical medication, we review the current reports on the incidence, pathogenic mechanism, and management of diarrhea induced by the molecular-targeted agents.

18.
Article in Chinese | WPRIM | ID: wpr-906536

ABSTRACT

Citri Reticulatae Semen is a traditional Chinese medicine in our country. By referring to the relevant literature and materials such as the works of ancient and modern materia medica, this paper summarizes the historical evolution of processing, quality analysis, pharmacological effects and other aspects of Citri Reticulatae Semen. The results showed that the processing methods of Citri Reticulatae Semen in the past dynasties mainly included stir-frying, processing with wine, baking with wine, etc. The modern stir-baking with salt solution was developed on the basis of the ancient stir-frying with green salt, most of the national and provincial processing standards contained crude and salt-processed products of Citri Reticulatae Semen. The properties and flavors of Citri Reticulatae Semen in the past dynasties were basically consistent with those in modern times. It is bitter in taste and neutral in nature. It belongs to the liver and kidney meridians and has the effects of regulating Qi, dispersing knots and relieving pain. Citri Reticulatae Semen contains limonins, fatty acids, proteins and mineral elements, etc. High performance liquid chromatography (HPLC), gas chromatography-mass spectrometry (GC-MS) and thin layer chromatography (TLC) were commonly used to detect and analyze Citri Reticulatae Semen. Citri Reticulatae Semen has anti-tumor, anti-inflammatory, analgesic and antibacterial activities, and processing can change the content of its chemical components to a certain extent. In a word, the current research about Citri Reticulatae Semen is not enough in-depth, it is necessary to further analyze the material basis of efficacy of Citri Reticulatae Semen and its processed products, explore the change law of chemical components before and after processing and the relationship between chemical composition and activity, and clarify the processing mechanism for providing scientific basis for its standardized processing, quality control and clinical rational use.

19.
Article in Chinese | WPRIM | ID: wpr-906448

ABSTRACT

Objective:To study the biological basis of Banxia Xiexintang against chronic gastritis by using quantitative proteomics. Method:The experimental rats were divided into normal group,chronic gastritis model group,and Banxia Xiexintang group. The chronic gastritis model was established four weeks later by gavage with 56% ethanol. After treatment,the stomach tissues were stained with hematoxylin and eosin (HE) to observe the histopathological damage and improvement of gastric tissue in each group. The protein in gastric tissue was extracted. The differential proteins among different groups were studied by quantitative proteomics using tandem mass spectrometry tag(TMT),and the key differentially expressed proteins(DEPs) were verified by Western blot. Result:A total of 4 452 proteins were identified from rat stomach tissues,of which 318 proteins were different between the model and the normal group. After the intervention of Banxia Xiexintang,compared with the model group,there were a total of 258 differential proteins, which were mainly enriched in cell killing,nucleoid and hijacked molecular function. Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment included tricarboxylic acid(TCA) cycle,steroid hormone biosyntheis,and Retrograde endocannabinoid signaling,as well as phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt),nuclear transcription factor-<italic>κ</italic>B(NF-<italic>κ</italic>B) signal pathways. Western blot verification found that 14-3-3 theta,Tenascin-C,ntercellular adhesion molecule-1(ICAM-1),stem cell factor(SCF),Caspase-3,GTPase of the Immunity-associated protein 4(GIMAP4) and mitochondrial pyruvate carrier 1(Mpc1) might be the crucial proteins for the treatment of chronic gastritis. Conclusion:The mechanism of Banxia Xiexintang in the treatment of chronic gastritis involves energy metabolism,hormone regulation,inflammation and immune processes. The target proteins found by differential proteomics and the signaling pathways may be the biological basis of Banxia Xiexintang in the treatment of chronic gastritis.

20.
Article in Chinese | WPRIM | ID: wpr-906246

ABSTRACT

Objective:To observe the clinical efficacy of modified Banxia Xiexintang on nonalcoholic fatty liver (NAFLD) and the regulatory effect on insulin resistance (IR). Method:One hundred and forty patients were randomly divided into control group and observation group. A total of 63 patients in control group completed the therapy (4 patients fell off or were lost to follow-up, 3 were eliminated), while 65 patients in observation group completed the therapy (5 patients fell off or were lost to follow-up, none was eliminated). Both groups' patients got lifestyle intervention, liver protection and lipid regulation. Patients in control group got Huazhi Rougan granule, 1 pack/time, 3 times/day. Patients in observation group got modified Banxia Xiexintang, 1 dose/day. And the course of treatment for the two groups was 12 weeks, and a 12 week follow-up was recorded. Before and after treatment and during the follow-up, fat content of liver was recorded by instantaneous elastic recorder, fasting blood glucose (FBG) and fasting insulin (FINS) were detected, and insulin sensitivity index (ISI), insulin resistance index (HOMA-IR) and islet <italic>β</italic> cell function index (HOMA-<italic>β</italic>) were detected. After treatment, B-mode ultrasonography and ratio of liver/spleen CT were detected. And levels of alanine transaminase (ALT), aspartate transaminase (AST), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), adiponectin, leptin, serine protease inhibitor (Vaspin), tumor necrosis factor (TNF)-<italic>α</italic> and interleukin-6 (IL-6) were detected. And the safety was evaluated. Result:CAP and HOMA-IR in observation group were lower than those in control group after treatment and during the follow-up (<italic>P</italic><0.01), and ISI and HOMA-<italic>β</italic> were higher than those in control group (<italic>P</italic><0.01). Amelioration of indexes of blood lipid was better than those in control group (<italic>P</italic><0.01). Levels of ALT, AST, FBG and FINS were lower than those in control group (<italic>P</italic><0.01). Scores of traditional Chinese medicine (TCM) syndromes were lower than those in control group (<italic>P</italic><0.01), ratio of liver/spleen CT and adiponectin was higher than that in control group (<italic>P</italic><0.01). Levels of TNF-<italic>α</italic>, IL-6, vaspin and leptin were lower than those in control group (<italic>P</italic><0.01). B-ultrasound efficacy and fat content of liver were superior to those of control group (<italic>P</italic><0.05). There were no serious adverse events and drug-related adverse reactions. Conclusion:Modified Banxia Xiexintang can regulate glucose and lipid metabolism, improve insulin sensitivity and HOMA-<italic>β</italic> cell function, improve IR, regulate adipocytokines and inflammatory factors, relieve clinical symptoms and liver fat content, and improve CT ratio of liver/spleen, with a better clinical efficacy and safety.

SELECTION OF CITATIONS
SEARCH DETAIL