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1.
Article in Chinese | WPRIM | ID: wpr-882037

ABSTRACT

The invalid patents associated with schistosomiasis control were retrieved in the Chinese Patent Database of China National Intellectual Property Administration, the Baiten database and the incoPat database, and the overall trends, legal status, types, patent indexing and technical fields of all retrieved invalid patents were analyzed. As of December 30, 2020, there were totally 859 patents relating to schistosomiasis control, and 512 were invalid patents, with an invalid rate of 59.6%. The number of patent applications and invalid patents peaked in 2018, including 71 patent applications and 53 invalid patents. Among the 511 schistosomiasis control-related invalid patents with complete records, there were 425 invention patents, 81 utility model patents and 5 design patents, and 219 patents (42.9%) were invalid due to the termination of the patented right and 292 (57.1%) due to loss of the right for patent applications. The major technical points included medicines (chemicals), basic research, devices and detections, and the specialized fields were mainly concentrated in A61P33, G01N33, C12N15, C07K14 and A01N65. Our data demonstrate a high invalid rate of patents relating to schistosomiasis control in China. Secondary development and mining of the invalid patents in relation to schistosomiasis are recommended to make use of their values in the national schistosomiasis elimination program of China.

2.
Article in Chinese | WPRIM | ID: wpr-880155

ABSTRACT

OBJECTIVE@#To investigate the quantitative expression of immunophenotype of CD34@*METHODS@#Multi-parameter flow cytometry (FCM) was used to detect the proportion and mean fluorescence intensity (MFI) of each antigen of bone marrow CD34@*RESULTS@#Bone marrow blast cell proportion (P<0.01), RBC level (P<0.01), and Hb level (P<0.05) of high-risk MDS patients were higher, while EPO level (P<0.05) was lower than those of low-risk patients. The proportion of CD34@*CONCLUSION@#The immunophenotype of CD34


Subject(s)
Antigens, CD34 , Bone Marrow , Bone Marrow Cells , Flow Cytometry , Humans , Immunophenotyping , Myelodysplastic Syndromes
3.
Article in Chinese | WPRIM | ID: wpr-880134

ABSTRACT

OBJECTIVE@#To investigate the relationship between single nucleotide polymorphisms (SNPs) of IKAROS family Zinc finger 3 (IKZF3) gene and the risk of acute lymphoblastic leukemia (ALL) in children.@*METHODS@#The peripheral blood samples from 286 children with ALL and 382 healthy children were collected and divided into ALL group and control group, respectively. The genotypes of IKZF3 gene at rs62066988 C > T and rs12946510 C > T were detected by quantitative PCR with TaqMan detection system, and their correlation with ALL was analyzed.@*RESULTS@#The distribution frequencies of CC, CT and TT genotypes at rs62066988 in ALL group were 58.39%, 37.06% and 4.55%, respectively, while those in control group were 69.19%, 27.68% and 3.13%, respectively. The distribution frequencies of CC, CT and TT genotypes at rs12946510 in ALL group were 58.16%, 34.75% and 7.09%, respectively, while those in control group were 55.76%, 37.43% and 6.81%, respectively. Compared with the control group, the distribution frequency of CT/TT genotype at rs62066988 was significantly increased in the ALL group (OR=1.59, 95%CI: 1.16-2.19, P=0.004). However, there was no significant difference in the distribution of rs12946510 C > T polymorphism between ALL group and control group.@*CONCLUSION@#The CT/TT genotype of IKZF3 at the site of rs62066988 is associated with the increased risk of ALL in children.


Subject(s)
Alleles , Case-Control Studies , Child , Gene Frequency , Genetic Predisposition to Disease , Genotype , Humans , Ikaros Transcription Factor/genetics , Polymorphism, Single Nucleotide , Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
4.
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
5.
Article in Chinese | WPRIM | ID: wpr-876711

ABSTRACT

Objective To evaluate the efficiency of a recombinase-aided amplification (RAA) assay for the detection of Schistosoma japonicum infections in Oncomelania hupensis snails. Methods A group test was employed. Fifty Oncomelania snails were collected as a detection sample. The detection samples without infected snails were designated as negative specimens, while the detection samples that contained different numbers of infected snails were designated as positive specimens. A total of 10 negative specimens, 10 positive specimens containing 1 infected snail, 20 positive specimens containing 2 infected snails and 10 positive specimens containing 3 infected snails were assigned. Following random grouping, 40 specimens were subject to the florescent RAA assay using a blind method. The miradium shedding method served as a gold standard, and the sensitivity, specificity, Youden’s index and coincidence rate of the florescent RAA assay were estimated. In addition, 20 samples consisted of 5 negative specimens and 15 positive specimens with 1, 2 and 3 infected snails respectively were grouped randomly. The same specimens were detected using the crushing method and fluorescent RAA assay with the blind method in a paired-design manner. Then, the test results were compared and analyzed. Results Florescent RAA assay detected 29 positives in the 30 specimens containing different numbers of infected snails, with a sensitivity of 96.67%, and 8 negatives in the 10 detection specimens without infected snails, with a specificity of 80.00%, showing a Youden’s index of 0.77. The coincidence rate was 100% among 10 repeated assays for a detection specimen. In addition, there was no significant difference in the detection of infected snails between the florescent RAA assay and the crushing method (χ2 = 0, P > 0.05), and the actual coincidence rates of the florescent RAA assay and crushing method were 95.00% (19/20) and 90.00% (18/20) with the real results, respectively. Conclusion Fluorescent RAA assay has a favorable efficiency for the detection of S. japonicum infections in Oncomelania snails, which shows a potential in screening of S. japonicum-infected Oncomelania snails.

6.
Article in Chinese | WPRIM | ID: wpr-837613

ABSTRACT

ObjectiveTo investigate the prevalence and risk factors of Blastocystis hominis infections among AIDS patients in Nanchang City. MethodsA cross-sectional questionnaire survey was conducted among AIDS patients in Nanchang City during the period between May and September, 2016. B. hominis infection was detected in patients’stool samples using a PCR assay, and the CD4+ T cell count was measured in subjects’blood samples. In addition, the risk factors of B. hominis infection in AIDS patients were identified using univariate and multivariate logistic regression analyses. Results A survey was conducted in Nanchang City from May to September 2016. A total of 505 AIDS patients were investigated, and the prevalence of B. hominis infection was 4.16%. Univariate analysis revealed that B. hominis infection correlated with the occupation (χ2 = 8.595, P = 0.049), education level (χ2 = 14.494, P = 0.001), type of daily drinking water (χ2 = 10.750, P = 0.020), root of HIV infections (χ2 = 8.755, P = 0.026) and receiving anti-HIV therapy (χ2 = 23.083, P = 0.001) among AIDS patients, and multivariate logistic regression analysis identified daily direct drinking of tap water as a risk factor of B. hominis infections [odds ratio (OR) = 7.988, 95% confidential interval (CI): (1.160, 55.004)] and anti-HIV therapy as a protective factor of B. hominis infection [OR = 0.183, 95% CI: (0.049, 0.685)]. Conclusions The prevalence of B. hominis is 4.16% among AIDS patients in Nanchang City. Daily direct drinking of tap water is a risk factor, and anti-HIV therapy is a protective factor of B. hominis infection among AIDS patients living in Nanchang City.

7.
Article | WPRIM | ID: wpr-836019

ABSTRACT

Methods@#The study involved 226 people who participated in the Korean Early Psychosis Cohort Study, and we divided the participants into two groups according to the degree of trauma.Positive and Negative Syndrome Scale (PANSS) and Social and Occupational Functioning Assessment Scale (SOFAS) were compared at the start of the study and at 12 months after the treatment using paired t-test and repeated measures analysis of variance. @*Results@#At the beginning of the study, there was no significant difference between the two groups. But after 12 months of treatment, the high trauma group showed less improvement in PANSS negative score, general psychopathological score, total score, and SOFAS than the low trauma group. @*Conclusion@#In patients with early psychosis and at least moderate severity of premorbid trauma, negative symptoms, general psychopathological, and social and occupational functional improvements after treatment are less.

8.
Article in Chinese | WPRIM | ID: wpr-829574

ABSTRACT

Objective To investigate the prevalence and risk factors of Blastocystis infections among primary school students in Jiangjin District, Chongqing City. Methods A cross-sectional questionnaire survey was conducted among students sampled from a primary school in Jiangjin District, Chongqing City on April, 2018, and their stool samples were collected for microscopic examinations, in vitro culture and PCR assays to analyze the prevalence of Blastocystis infections and subtype of the parasite. In addition, the risk factors of Blastocystis infections among primary school students were identified using univariate analysis and multivariate logistic regression analysis. Results A total of 466 primary students were surveyed, and the subjects had a mean age of (9.81±1.66) years and included 236 males (50.64%) and 230 females (49.36%). The prevalence of Blastocystis infections was 15.24% (71/466) among the study students, and there was no significance difference in the prevalence between male and fe- male students (16.52% vs. 13.91%; χ2 = 0.616, P = 0.433). In addition, there was a significant difference in the prevalence of Blastocystis infections among grade 1 (6.35%, 4/63), grade 2 (5.17%, 3/58), grade 3 (21.74%, 15/69), grade 4 (25.30%, 21/83), grade 5 (10.19%, 11/108) and grade 6 students (20.00%, 17/85) (χ2 = 15.410, P = 0.009). There were four Blastocystis subtypes characterized (ST1, ST3, ST6 and ST7), in which ST6 was the most common subtype (45.07%, 32/71), followed by ST3 (25.35%, 18/71). Multivariate logistic regression analysis revealed that minority ethnicity [odds ratio (OR) = 4.259, 95% confidential inter- val (CI) : (1.161, 15.621)] and low maternal education level (primary school and below) [OR = 9.038, 95% CI: (1.125, 72.642)] were identified as risk factors of Blastocystis infection among primary school students in Jiangjin District, Chongqing City. Conclusions There is a high prevalence of Blastocystis infections detected among primary school students in Jiangjin District, Chongqing City, and ST6 and ST3 are predominant subtypes. Minority ethnicity and low maternal education level (primary school and below) are risk factors for Blastocystis infections in primary school students.

9.
Article in Chinese | WPRIM | ID: wpr-829043

ABSTRACT

OBJECTIVE@#To investigate the effect of other gene mutations outside the fusion gene on the first complete remission (CR) induced by one course of induction chemotherapy in patients with core binding factor-associated acute myeloid leukemia (CBF-AML).@*METHODS@#DNA was extracted from bone marrow or peripheral blood samples of newly diagnosed CBF-AML patients admitted to the Hematology Department of the Second Hospital of Shanxi Medical University from January 2015 to January 2019. Next-generation sequencing was used for detection of 34 kinds of hematologic malignancy-related gene mutations in patients with CBF-AML, the effect of related gene mutations on the first complete remission (CR) rate in one course of induction chemotherapy was analyzed by combineation with clinical characteristics.@*RESULTS@#34 kinds of genes in bone marrow or peripheral blood of 43 patients were detected by high throughput sequencing and the gene mutations were detected in 16 out of 34 genes. The mutation rate of KIT gene was the highest (48.8%), followed by NRAS (16.3%), ASXL1 (16.3%), TET2 (11.6%), CSF3R (9.3%), FLT3 (9.3%), KRAS (7.0%). The detection rates of mutations in different functional genes were as follows: genes related with signal transduction pathway (KIT, FLT3, CSF3R, KRAS, NRAS, JAK2, CALR, SH2B3, CBL) had the highest mutation frequency (72.1% (31/43); epigenetic modification gene mutation frequency was 30.2% (13/43), including ASXL1, TET2, BCOR); transcriptional regulation gene mutation frequency was 7.0% (3/43), including ETV6, RUNX1, GATA2). Splicing factor related gene mutation frequency was 2.3% (1/43), including ZRSR2). The CR rate was 74.4% after one course of induction chemotherapy. At first diagnosis, patients with low expression of WT1 (the median value of WT1 was 788.9) were more likely to get CR (P=0.032) and the RFS of patients who got CR after one course of induction chemotherapy was significantly longer than that of patients without CR [7.6 (2.2-44.1) versus 5.8 (1-19.4), (P=0.048)]. The rate of CR in the signal transduction pathway gene mutation group was significantly lower than that in non-mutation group (64.5% vs 100%) (P=0.045), while the level of serum hydroxybutyrate dehydrogenase (HBDH) was significantly higher than that in non-mutation group [(418 (154-2702) vs 246 (110-1068)] (P=0.032). There was no difference in CD56 expression between the two groups (P=0.053), which was limited to the difference between (≥20%) expression and non-expression. (P=0.048).@*CONCLUSION@#CBF-AML patients with signal transduction pathway gene mutation are often accompanied by high HBDH level and CD56 expression, moreover, the remission rate induced by one course of treatment is low.


Subject(s)
High-Throughput Nucleotide Sequencing , Humans , Leukemia, Myeloid, Acute , Mutation , Prognosis , Signal Transduction
10.
Article in English | WPRIM | ID: wpr-828575

ABSTRACT

Objective The purpose of this study was to produce an arginylglycylaspartic acid (RGD) peptide-modified ultra-small superparamagnetic iron oxide (FeO) nanoparticles (NPs) for targeted magnetic resonance (MR) imaging of hepatocellular carcinoma (HCC) cells and verify its utility as a T1 positive MRI imaging contrast agent and .Methods The carboxylated FeO NPs stabilized with sodium citrate were conjugated with polyethylene glycol (PEG)-linked RGD nanoparticles to form a novel target contrast agent FeO-PEG-RGD NPs. The specificity of FeO-PEG-RGD to bind RGD receptor was investigated by HepG2 cellular uptake and cell MR imaging, and by MR imaging of subcutaneous HepG2 tumors of nude mice.Results The formed FeO-PEG-RGD NPs displayed good biocompatibility, and the ultrahigh r1 relaxivity was 1.37 mM S . The synthesized FeO-PEG-RGD NPs were demonstrated spherical-like with an approximate diameter of 2.7 nm in similar size. The targeting effect to HepG2 cells was confirmed by cellular uptake and cell MR imaging. The MR imaging of nude mice demonstrated that the MR signal intensity enhancement of HepG2 tumor in FeO-PEG-RGD NPs treated mice was significantly higher than in mice treated with non-targeted FeO-mPEG NPs at the same post-administration time point. Conclusion The results indicate that the FeO-PEG-RGD particles have potential utility as T1 positive contrast agent in targeted MR imaging.

11.
Article in Chinese | WPRIM | ID: wpr-828064

ABSTRACT

The aim of this paper was to observe the changes of intestinal flora in vascular aging mice, in order to explore the relationship between vascular aging and intestinal flora and the effects of extracts of Ginseng Radix et Rhizoma, Notoginseng Radix et Rhizoma and Chuanxiong Rhizoma on intestinal flora of vascular aging mice. A model of vascular aging in mice was induced through intrape-ritoneal injection with streptozotocin(STZ) combined with high-fat diet. Biochemical detection was performed on serum cholesterol(CHO), triglyceride(TG), high-density liptein cholesterol(HDL-C), low-density liptein cholesterol(LDL-C) and blood glucose(GLU). HE staining was used to detect mice thoracic aorta morphology, and the expressions of cyclin-dependent kinase inhibitor 2 A(p16) and cyclin-dependent kinase inhibitor 1 A(p21) protein in mice thoracic aorta were detected by Western blot. The 16 S rDNA gene of mice intestinal flora was detected by Illumina MiSeq high-throughput sequencing technology to explore the changes of intestinal flora in each group. The results demonstrated that the GLU level in low-dose and high-dose TCM groups decreased, but with unobvious changes in blood lipid indexes. Metformin could significantly decrease the levels of GLU(P<0.01), CHO and LDL-C in mice(P<0.05). Intravascular injury was not obvious in each drug group, and the expressions of p16 and p21 protein were significantly decreased(P<0.05). The intestinal flora of each group was mainly composed of Firmicutes(F) and Bacteroidetes(B) at the level of the phylum, but the B/F ratio was different from that of the youth group and the blank control group. The B/F ratio of the model group was significantly lower(P<0.01), and compared with the model group, the B/F ratio of the high-dose group and the metformin group was signi-ficantly higher(P<0.05). There were dominant and differential floras in the intestine of each group of mice. The results showed that extracts of Ginseng Radix et Rhizoma, Notoginseng Radix et Rhizoma and Chuanxiong Rhizoma could improve the intestinal flora structure and create a good intestinal environment by increasing the B/F ratio, which provides a new possible pathway for lowering blood glucose and blood lipids and delaying vascular aging.


Subject(s)
Aging , Animals , Drugs, Chinese Herbal , Gastrointestinal Microbiome , Glucose , Lipids , Mice , Panax
12.
Article in Chinese | WPRIM | ID: wpr-828052

ABSTRACT

Salvia miltiorrhiza(Sm) and Salvia castanea f. tomentosa(Sc) hairy roots were used as experimental materials to study the effects of six different carbon sources, galactose, fructose, lactose, glucose, arabinose and sucrose(control), on fresh weight, dry weight, contents and yields of salvianolic acids and tanshinones. The results showed that galactose was most beneficial to the growth of two kinds of hairy roots, while lactose and arabinose were not conducive to their growth. As for Sm hairy roots, fructose significantly promoted the accumulation of salvianolic acid B, and the content increased by 5.801 times and 10.151 times compared with the control group, respectively. Glucose significantly promoted the accumulation of salvianolic acids. The content and yield of rosmarinic acid were 7.674 times and 9.260 times of that of the control group, and the content and yield of salvianolic acid B were 5.532 times and 6.675 times of the control group. For the hairy roots of Sc, galactose significantly increased the content and yield of rosmarinic acid, reaching 7.820 times and 9.944 times of the control group, respectively. Fructose promoted the increase of the content and yield of cryptotanshinone, reaching 9.242 times and 6.609 times of the control group, respectively. The study confirmed the optimal carbon source for the hairy root culture of Sm and Sc, and provided theoretical guidance for large-scale production of Sm drug-derived components and the utilization of Sc.


Subject(s)
Carbon , Plant Roots , Salvia , Salvia miltiorrhiza
13.
Article in Chinese | WPRIM | ID: wpr-828004

ABSTRACT

To reveal the processing mechanism of Chrysanthemi Flos from the changes of chemical compositions after frying and its effect on the efficacy of liver protection. Ultra performance liquid chromatography-quadrupole-time of flight-mass spectrometry(UPLC-Q-TOF-MS) and ultra high performance liquid chromatography(HPLC) were used for the qualitative and quantitative researches of chemical compositions before and after Chrysanthemi Flos frying. Progenesis QI and SPSS software were used for principal component analysis(PCA), partial least squares discriminant analysis(PLS-DA), variable importance projection(VIP) analysis and t-test to identify the compositions with significant changes. Pharmacodynamics experiment was used to investigate the protective effect of crude and fried Chrysanthemi Flos on CCl_4-induced acute liver injury in mice. According to mass spectrometry data, there were 28 chemical compositions in crude and fried Chrysanthemi Flos, mainly including flavonoids and organic acids. 13 compositions such as luteolin, apigenin and luteolin glycoside were increased significantly after frying, while 7 compositions such as chlorogenic acid, luteolin-7-O-glucuronide and apigenin-7-O-glucuronide were decreased significantly after frying. Through principal component analysis, crude and fried Chrysanthemi Flos products were divided into two categories, indicating that there were internal differences in quality. The results of liver injury protection experiment in mice showed that the AST, ALT and MDA contents were significantly decreased and SOD level was increased in mice with liver injury in both the high and medium dose groups. Histopathological examination showed that crude and fried Chrysanthemi Flos can protect the liver by reducing inflammatory cell infiltration, reducing steatosis, and repairing damaged liver cells. The results of this study showed that the chemical compositions had obvious changes after frying, and both crude and fried Chrysanthemis Flos had protective effects on CCl_4-induced acute liver injury in mice. In addition, in the range of high, medium and low doses, the liver protection effect of crude and fried Chrysanthemi Flos increased with the increase of dose. The experiment results provided reference for the mechanism of fried Chrysanthemi Flos and clinical selection of processed products.


Subject(s)
Animals , Chromatography, High Pressure Liquid , Chrysanthemum , Flavonoids , Flowers , Chemistry , Liver , Chemistry , Mice
14.
Article in Chinese | WPRIM | ID: wpr-827981

ABSTRACT

Phellodendri Chinensis Cortex is perennial deciduous arbors, herbaceous medicinal plants are perennial. It is a rational disposition of Chinese materia medica planting colonies by inter cropping of Phellodendri Chinensis Cortex and herbaceous medicinal plants, based on their different plant height. According to the different demand of sunlight in density and periodicity, the heliophilous and shade-requiring plants, perennial arbors and herbaceous, short and long-term growth plants were intercropping in this kind of the ecological planting pattern. It can efficiently enhance the ecological, economic and social benefits by making full use of nutrients and land sources, as well as increasing the biodiversity in Chinese materia medica planting areas.


Subject(s)
Agriculture , Drugs, Chinese Herbal , Feasibility Studies , Materia Medica , Plants, Medicinal
15.
Article in Chinese | WPRIM | ID: wpr-826689

ABSTRACT

OBJECTIVE@#To compare the infuences on circadian rhythm of blood pressure in the patients with non-dipper essential hypertension between the combined treatment of time acupuncture and western medication and the simple western medication.@*METHODS@#A total of 70 patients with non-dipper essential hypertension were randomized into an acupuncture plus western medication group (35 cases, 2 cases dropped out) and a western medication group (35 cases). In the western medication group, levamlodipine maleate tablets were taken orally, 2.5 mg each time, once daily. In the acupuncture plus western medication group, on the base of the treatment as the western medication group, acupuncture was applied specially in the period of the day from 7:00 am to 9:00 am. The acupoints included Fengchi (GB 20), Zhongwan (CV 12), Tianshu (ST 25), Hegu (LI 4), Quchi (LI 11), Zusanli (ST 36), etc. Acupuncture was given once daily, 5 treatments a week. The duration of treatment in the two groups was 4 weeks. The clinic blood pressure before and after treatment, 24 h ambulatory blood pressure and the levels of serum melatonin (MT) and 5-serotonin (5-HT) were observed in the two groups.@*RESULTS@#The total effective rate of anti-hypertension was 75.8% (25/33) in the acupuncture plus western medication group, better than 54.3% (19/35) in the western medication group (<0.05). The 24 h average systolic blood pressure, the daytime average systolic blood pressure, the daytime average diastolic pressure, and the nighttime average systolic blood pressure were all reduced after treatment in the two groups (<0.05). The reduction effect of the aforementioned 4 indexes in the acupuncture plus western medication group was much more obvious as compared with the western medication group (<0.05). After treatment, the serum level of MT was increased and 5-HT decreased in the patients of two groups (<0.05). The serum level of MT in the acupuncture plus western medication group was higher than that in the western medication group and the level of 5-HT was lower than the western medication group (<0.05).@*CONCLUSION@#Time acupuncture therapy in the period of the day from 7:00 am to 9:00 am, combined with western medication effectively reduce blood pressure and regulate the levels of serum MT and 5-HT so as to maintain the circadian rhythm of blood pressure in patients with non-dipper essential hypertension. The therapeutic effect of this combined treatment is superior to simple western medication.


Subject(s)
Acupuncture Points , Acupuncture Therapy , Blood Pressure , Blood Pressure Monitoring, Ambulatory , Circadian Rhythm , Essential Hypertension , Therapeutics , Humans , Periodicity
16.
Article in Chinese | WPRIM | ID: wpr-825223

ABSTRACT

Objective To establish a recombinase-aided isothermal amplification (RAA) assay for the nucleic acid detection of Angiostrongylus cantonensis. Methods The internal transcribed spacer-1 (ITS1) gene sequence of A. cantonensis was used as the detection target sequence, and the specific primers and probes were designed and synthesized, followed by screening of the primers and probes with the highest specificity, to establish the basic and fluorescent RAA assay for nucleic acid detection of A. cantonensis. The sensitivity of the fluorescent RAA assay was evaluated by using the target gene fragment sequence-contained recombinant plasmids at various copy numbers and the genomic DNA from A. cantonensis as the template DNA samples, and the specificity of the fluorescent RAA assay was evaluated by using the genomic DNA from A. cantonensis, Schistosoma mansoni, Ascaris lumbricoides, Clonorchis sinensis, Echinococcus granulosus and Ancylostoma duodenale, as well as Pomacea canaliculata and Biomphalaria straminea snail tissues as the template DNA samples. Results A fluorescent RAA assay was successfully established for nucleic acid detection of A. cantonensis, which achieved real-time amplification of the specific DNA fragment of A. cantonensis within 20 min at 37 ℃. By using the target gene fragment sequence-contained recombinant plasmids at various copy numbers and the genomic DNA from A. cantonensis as the DNA templates, the lowest detection limits of the fluorescent RAA assay were 10 copies/μL of recombinant plasmids and 100 pg/μL of genomic DNA, respectively. The fluorescent RAA assay was negative for detection of the genomic DNA from A. cantonensis, S. mansoni, A. lumbricoides, C. sinensis, E. granulosus, A. duodenale, and P. canaliculata and B. straminea snail tissues. Conclusions A simple, rapid fluorescent RAA assay has been successfully established, which has a high sensitivity and specificity for the nucleic acid detection of A. cantonensis.

17.
Article in Chinese | WPRIM | ID: wpr-825222

ABSTRACT

Objective To establish a novel nucleic acid assay for detection of Giardia lamblia based on the recombinase-aided isothermal amplification (RAA) assay, and evaluate its sensitivity and specificity for detection of G. lamblia. Methods The specific primer sequences and florescent probes were designed and synthesized based on the G. lamblia β-giardin gene as the target gene, and a fluorescent RAA assay was established. The recombinant plasmids at various copies (containing the β-giardin gene target sequence) and the genomic DNA of G. lamblia at various concentrations were used as templates for the fluorescent RAA assay to assess the sensitivity, and the genomic DNA from G. lamblia, Schistosoma japonicum, Clonorchis sinensis, Cryptosporidium parvum, Ascaris lumbricoides, Salmonella and Shigella was used as templates to assess the specificity of the fluorescent RAA assay. Results A novel fluorescent RAA assay was successfully established for detection of G. lamblia, which allowed the rapid and specific amplification of the target gene fragments at 39 ℃ within 20 min. The sensitivities of the fluorescent RAA assay were 102 copies/μL and 1 pg/μL for detection of the recombinant plasmid and G. lamblia genomic DNA, respectively, and the fluorescent RAA assay was negative for detection of the genomic DNA from S. japonicum, C. sinensis, C. parvum, A. lumbricoides, Salmonella and Shigella, which showed a high specificity. Conclusions A fluorescent RAA assay, which is simple, sensitive and specific, is successfully established for nucleic acid detection of G. lamblia.

18.
Article in Chinese | WPRIM | ID: wpr-825221

ABSTRACT

Objective To establish a nucleic acid assay for detection of Echinococcus granulosus based on recombinase-aided isothermal amplification (RAA) assay. Methods The 12S rRNA gene of E. granulosus was selected as the target gene, and the specific primers and fluorescent probes for RAA assay were designed, screened and synthesized to establish a fluorescent RAA assay for detection of E. granulosus. The sensitivity of the fluorescent RAA assay was evaluated using different copy numbers of target gene sequence-contained recombinant plasmids and various concentrations of E. granulosus genomic DNA as templates, and the specificity of the fluorescent RAA assay was evaluated using the genomic DNA from E. granulosus, E. multilocularis, Schistosoma japonicum, S. mansoni, Ancylostoma duodenale, Clonorchis sinensis, Taenia saginata, Spirometra mansoni and Taenia solium as templates. Results A fluorescent RAA assay was successfully established for detection of E. granulosus, which achieved specific amplification of E. granulosus genomic DNA within 20 min at 39 ℃. The lowest detection limit of the fluorescent RAA assay was 10 copies/μL of recombinant plasmids and 0.1 ng/μL E. granulosus genomic DNA, which exhibited a high sensitivity, and the fluorescent RAA assay was all negative for the genomic DNA from E. multilocularis, S. japonicum, S. mansoni, A. duodenale, C. sinensis, T. saginata, Spirometra mansoni and T. solium, which exhibited a high specificity. In addition, this fluorescent RAA assay successfully detected genomic DNA from E. granulosus cysts. Conclusions A rapid, sensitive and specific fluorescent RAA assay is successfully established for nucleic acid detection of E. granulosus.

19.
Article in Chinese | WPRIM | ID: wpr-825220

ABSTRACT

Objective To establish a recombinase-aided isothermal amplification (RAA) assay for nucleic acid detection of Schistosoma mansoni. Methods The 121 bp highly-repeated sequence of S. mansoni was selected as the target gene fragment to be detected. The primers and fluorescent probes were designed using the Amplfix software, and a fluorescent RAA assay was established and optimized. The fluorescent RAA assay was performed to detect gradient diluent recombinant plasmids containing target gene fragment and different concentrations of S. mansoni genomic DNA to determine the sensitivity, and this assay was applied to detect the genomic DNA of S. japonicum, S. haematobium, Ancylostoma duodenale and Clonorchis sinensis to evaluate the specificity. Results A fluorescent RAA assay was successfully established, which was effective to amplify the specific gene fragments of S. mansoni within 20 min at 39 ℃. The minimum detectable limit of the fluorescent RAA assay was 10 copies/μL using recombinant plasmids as templates and 0.1 fg/μL using S. mansoni genomic DNA samples as templates. The fluorescent RAA assays were all negative for detecting the genomic DNA from S. japonicum, S. haematobium, A. duodenale and C. sinensis. Conclusions A novel fluorescent RAA assay is successfully established, which is simple, rapid, sensitive and specific to detect genomic DNA of S. mansoni.

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Article in Chinese | WPRIM | ID: wpr-873278

ABSTRACT

Objective::To explore the protective mechanism of Ginseng Radix et Rhizoma, Notoginseng Radix et Rhizoma and Chuanxiong Rhizoma (GNC) extracts on cardiac aging in diabetic mice by observing the activation of AMP-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) pathway, changes of cardiac pathomorphological and related senescent proteins. Method::C57BL/6 male mice, SPF level, were randomly divided into normal control group and high-glucose group. The mice in high-glucose group were intraperitoneally injected with streptozotocin (STZ) and fed with high-fat diet. After successful modeling, they were randomly divided into model group, low-dose GNC group (0.819 g·kg-1), high-dose GNC group (1.638 g·kg-1) and metformin group (150 mg·kg-1). The drug was administered by gavage once a day for a continuous period of 9 weeks. 4-week-old male C57BL/6 mice were normally fed for 1 week as a youth group. General conditions of mice were observed. Hematoxylin-eosin (HE) staining combined with transmission electron microscope (TEM) was used to observe the cardiac pathomorphology in mice. Von Kossa staining was used to determine the degree of calcium salt deposition in cardiac micro vessels. Western blot was used to detect the activation of signaling pathways in myocardial tissue of mice, as well as the expression levels of matrix metalloproteinases-2 (MMP-2), tumor suppressor p53 (p53), and phospho-tumor suppressor p53 (p-p53). Result::As compared with the normal group, the blood glucose in the model group increased (P<0.01), as compared with the model group, the blood glucose in each administration group decreased significantly (P<0.05, P<0.01). The results of three pathological morphology experiments (HE, TEM, and Von Kossa) showed that as compared with the normal control group, the mice in model group showed cardiomyocytes hypertrophy, disordered arrangement of myocardial fibers, focal dissolving and necrosis, mitochondria swelling, degeneration, crest fracture, vacuolar alteration, disordered microvascular structure of the heart, uneven staining, and a large amount of calcium deposition in tunica media and intima. As compared with the model group, the pathomorphological changes of mice in each administration group were improved in varying degrees. Compared with the normal group, the expression levels of MMP-2, p53 and p-p53 protein in the model group were significantly increased (P<0.05, P<0.01), the protein ratios of p-liver kinase B2(LKB1)/LKB1, p-AMPK/AMPK were significantly decreased (P<0.05, P<0.01), and the average gray level of p-mTOR/mTOR and p-p70S6 kinase(p70S6k)/p70S6k protein was significantly increased (P<0.05, P<0.01), while the protein ratios of p-mTOR/mTOR, p-p70S6k/p70S6k were increased (P<0.01). As compared with the model group, the expression levels of MMP-2, p53 and p-p53 protein in each administration group were significantly decreased (P<0.05, P<0.01), the protein ratios of p-LKB1/ LKB1, p-AMPK/AMPK were significantly increased (P<0.05, P<0.01), while the protein ratios of p-mTOR/mTOR and p-p70S6k/p70S6k were decreased (P<0.05, P<0.01). Conclusion::STZ combined with high-fat diet can induce cardiac aging in mice, and GNC can improve cardiac aging in diabetic mice, which may be related to the inhibition of AMPK/mTOR pathway related protein expression.

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