Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 288
Filter
1.
China Pharmacy ; (12): 680-684, 2022.
Article in Chinese | WPRIM | ID: wpr-923002

ABSTRACT

OBJECTIVE To establis h the method for the simultaneous determination of six iridoids (loganic acid ,loganin, sweroside,dipsanoside B ,dipsanoside A ,sylvestroside Ⅰ)and one triterpene saponin (asperosaponin Ⅵ)in Dipsacus asper . METHODS High performance liquid chromatography (HPLC) method was adopted. The determination was performed on Symmetry® C18 column with mobile phase consisted of acetonitrile- 0.1% phosphoric acid solution (gradient elution )at the flow rate of 1.0 mL/min. The detection wavelengths were set at 212 nm(asperosaponin Ⅵ)and 237 nm(dipsanoside B ,dipsanoside A , sweroside,loganic acid ,sylvestroside Ⅰ,loganin). The column temperature was set at 30 ℃,and sample size was 20 μL. RESULTS The linear range of loganic acid , loganin, sweroside, sylvestroside Ⅰ , dipsanoside B , dipsanoside A and asperosaponin Ⅵ were 399.24-931.56,50.30-150.90,48.24-168.84,27.00-70.20,12.93-38.80,40.64-121.92,42.08-147.28 µg/mL (all r>0.999 0). RSDs of precision ,reproducibility and stability tests (24 h)were all less than 2%. Average recoveries were 104.43%(RSD=0.63%,n=6),101.74%(RSD=1.11%,n=6),100.76%(RSD=1.06%,n=6),98.00%(RSD=1.58%,n=6), 99.03%(RSD=2.31%,n=6),102.93%(RSD=2.26%,n=6),102.31%(RSD=1.00%,n=6),respectively,The contents were 142.5-280.6,5.5-49.0,28.0-112.9,7.2-35.8,4.4-16.9,17.2-79.3,0.8-54.5 mg/g,respectively. CONCLUSIONS Established method is accurate and reliable ,and can be used for the content determination of 7 components in D. asper .

2.
China Pharmacy ; (12): 530-534, 2022.
Article in Chinese | WPRIM | ID: wpr-920720

ABSTRACT

OBJECTIVE To separate and identif y the chemical constituen ts in 70% ethanol extract of Sabia parviflora ,and to preliminarily evaluate their in vitro antioxidant activity. METHODS The chemical constituents were separated and purified by silica gel,ODS reversed-phase silica gel ,Sephadex-LH20 column and preparative high performance liquid chromatography. The structures of the isolated compounds were identified by 1H-NMR,13C-NMR and ESI-MS. The in vitro antioxidant activities of the compounds were investigated by 2,2-diphenyl-1-picrylhydrazyl radical (DPPH·),2,2′-azino-bis(3-ethylbenzothiazoline-6- sulfonate)diammonium radical (ABST+)and hydroxyl radical (OH·). RESULTS A total of 9 compounds were isolated from the 70% ethanol extracts of S. parviflora . They were identified as rutin (1),diiononyl phthalate (2),dibutyl phthalate (3),vomifoliol (4),rhododendrol(5),quercetin-3-O-gentiobioside(6),narcissoside(7),kaempferol-3-O-rutinoside(8)and bonaroside (9). The in vitro antioxidant results showed that compound 1-9 showed certain in vitro antioxidant activity ,and the half scavenging concentrations of compound 1,6,7 and 8 to DPPH ·,ABST+,OH·were lower than 70 μg/mL. CONCLUSIONS Vomifoliol, rhododendrol and bonaroside are isolated from S. parviflora for the first time ,and rutin ,quercetin-3-O-gentiobioside,narcissoside and kaempferol- 3-O-rutinoside show good in vitro antioxidant activity.

3.
Article in Chinese | WPRIM | ID: wpr-911567

ABSTRACT

Objective:To compare toally endoscopic thyroidectomy(TET) with open thyroidectomy(OT) in the treatment of differentiated thyroid cancer.Methods:Data of 190 patients at Liuzhou People's Hospital from Jul 2017 to Dec 2019 were analyzed. Patients were divided into endoscopic surgery group ( n=95) and open surgery group ( n=95). Results:The operation time and the hospital stay in endoscopic group were longer than that in open surgery group[(153±25) min vs. (116±17) min, (5.56±1.08) d vs.(5.08±1.04) d, t=11.827,3.083, both P<0.05)]. There was no significant difference in intraoperative blood loss [(33±14) ml vs. (37±16) ml, t=-1.851 P>0.05], recurrent laryngeal nerve paralysis, hypoparathyroidism and wound complications (4% vs. 9%, 9% vs. 15%,1% vs. 3%, all P>0.05). There was no significant difference in the number of central lymph node dissection between the two groups (6.12±3.54 vs. 6.35±4.75, t=-0.404, P<0.05). The length of scar in endoscopic group was shorter [(3.03±0.27) cm vs. (6.47±0.53) cm, t=-56.138, P<0.05), and the postoperative cosmetic score evaluated by the patients was higher (8.76±0.75 vs. 7.39±0.76, P<0.05), than those in open group. There were no tumor recurrence nor metastasis in neither group by short term follow-up. Conclusions:TET is similar to OT on clinical curative effectiveness for differentiated thyroid carcinoma while carries a better cosmetic result .

4.
Acta Pharmaceutica Sinica ; (12): 3325-3330, 2021.
Article in Chinese | WPRIM | ID: wpr-906831

ABSTRACT

italic>NAC transcription factor genes play an important role in regulating plant adversity stress tolerance and secondary metabolism. To explore DaNAC transcription factor participation in the synthesis of asperosaponin Ⅵ in Dipsacus asper, we analyzed the expression of DaNAC genes based on full-length transcriptome data from different tissues (root, stem, leaf, flower, seed) to provide a theoretical foundation for regulating the metabolism of D. asper. RNA-seq data was used to identify open reading frames. Bioinformatic methods were used to identify the conserved domain motifs and construct an evolutionary tree. qRT-PCR was carried out to analyze tissue-specific and adversity-stressed expression. Twenty-nine DaNAC sequences were identified, all of which contain the conserved NAM domain and conserved motif 1 and motif 2 at the N terminal. Five DaNAC genes are closely related to the NAC genes in Arabidopsis thaliana and rice that are involved in adversity stress and are clustered in the Group Ⅰ subfamily. qRT-PCR revealed that DaNAC genes are differentially expressed between tissues. The expression levels were highest in leaves, followed by roots, stems and petioles, and the lowest in flowers and seeds. Compared with normal growth conditions, the expression of four NAC genes was up-regulated by treatment with low temperature (15 ℃). The expression of three genes (34564NAC2, 33883NAC48, 6727NAC14) was up-regulated and one gene (34480NAC22) was down-regulated by 150 μmol·L-1 MeJA. The results illustrate that the expression of NAC genes is induced by adversity stress, which provides a foundation for further study on the role of NAC family members in adversity stress in D. asper.

5.
Article in Chinese | WPRIM | ID: wpr-906405

ABSTRACT

Objective:To study the distribution characteristics of mineral elements in <italic>Gastrodia elata </italic>samples<italic> </italic>with different grades and specifications (variants) from diverse producing areas and their classification and identification evidences. Method:Fourteen mineral elements in 31 batches of <italic>Gastrodia elata</italic> samples of different grades and specifications (variants) from diverse producing areas were determined by atomic absorption spectrophotometry, Mo-Sb colorimetry, and curcumin colorimetry, and then subjected to correlation analysis (CA), discriminant analysis (DA), and principal component analysis (PCA). Result:The content of K, N, and P in <italic>G. elata</italic> was the highest, enabling them to serve as the nutritional limiting factors affecting its growth. The <italic>G. elata</italic> samples could be identified by the variation trend of elements (K>N>P>Mg>Ca>Fe>B>Zn>Mn>Cu>Ni>Cr>Pb>Cd). The comparison of <italic>G. elata</italic> samples from multiple producing areas showed that <italic>G. elata</italic> from Zhaotong has the highest P, Fe, and Cd content, that from Lijiang the highest K content, that form Luotian the highest Zn and Cr content, and that from Jinzhai the highest Cu and Pb content. The content of Mg, B, Pb, and Cr in <italic>G. elata</italic> f. <italic>elata</italic> was higher than that in <italic>G. elata </italic>f. <italic>glauca</italic>. It was found that the content of P, Cu, and Cd in commercially available <italic>G. elata </italic>products gradually increased with the decrease in the commercial grade, while that of Mg, Fe, B, and Ni mostly decreased. As revealed by CA, Fe was positively correlated with Mg, Cr, and B. The producing areas of <italic>G. elata</italic> samples could be effectively identified by DA with Cd, Pb, Cr, Cu, B, and Ni as the main variables, and the accuracy reached up to 85.71%. According to the PCA of mineral elements in <italic>G. elata</italic> f. <italic>glauca</italic> from Zhaotong, Yunnan Province, Fe, Cr, Mg, Cd, P, Mn, B, Pb, and Cu exerted a greater influence on <italic>G. elata</italic>. Conclusion:The determination of mineral elements in <italic>G. elata</italic> samples contributes to identifying their authenticity and origin due to the easy operation, accurate results, and good stability.

6.
Neuroscience Bulletin ; (6): 1555-1569, 2021.
Article in English | WPRIM | ID: wpr-922668

ABSTRACT

Quantitative evaluation of analgesic efficacy improves understanding of the antinociceptive mechanisms of new analgesics and provides important guidance for their development. Lappaconitine (LA), a potent analgesic drug extracted from the root of natural Aconitum species, has been clinically used for years because of its effective analgesic and non-addictive properties. However, being limited to ethological experiments, previous studies have mainly investigated the analgesic effect of LA at the behavioral level, and the associated antinociceptive mechanisms are still unclear. In this study, electrocorticogram (ECoG) technology was used to investigate the analgesic effects of two homologous derivatives of LA, Lappaconitine hydrobromide (LAH) and Lappaconitine trifluoroacetate (LAF), on Sprague-Dawley rats subjected to nociceptive laser stimuli, and to further explore their antinociceptive mechanisms. We found that both LAH and LAF were effective in reducing pain, as manifested in the remarkable reduction of nocifensive behaviors and laser-evoked potentials (LEPs) amplitudes (N2 and P2 waves, and gamma-band oscillations), and significantly prolonged latencies of the LEP-N2/P2. These changes in LEPs reflect the similar antinociceptive mechanism of LAF and LAH, i.e., inhibition of the fast signaling pathways. In addition, there were no changes in the auditory-evoked potential (AEP-N1 component) before and after LAF or LAH treatment, suggesting that neither drug had a central anesthetic effect. Importantly, compared with LAH, LAF was superior in its effects on the magnitudes of gamma-band oscillations and the resting-state spectra, which may be associated with their differences in the octanol/water partition coefficient, degree of dissociation, toxicity, and glycine receptor regulation. Altogether, jointly applying nociceptive laser stimuli and ECoG recordings in rats, we provide solid neural evidence for the analgesic efficacy and antinociceptive mechanisms of derivatives of LA.


Subject(s)
Aconitine/pharmacology , Analgesics/pharmacology , Animals , Pharmaceutical Preparations , Rats , Rats, Sprague-Dawley
7.
Article in Chinese | WPRIM | ID: wpr-921697

ABSTRACT

Fusarium is the major pathogen of root rot of Pseudostellaria heterophylla. This study aims to explain the possible distribution of Fusarium species and the contamination of its toxin-chemotypes in tuberous root of P. heterophylla. A total of 89 strains of fungi were isolated from the tuberous root of P. heterophylla. Among them, 29 strains were identified as Fusarium by ITS2 sequence, accounting for 32.5%. They were identified as five species of F. avenaceum, F. tricinctum, F. fujikuroi, F. oxysporum, and F. graminearum based on β-Tubulin and EF-1α genes. LC-MS/MS detected 18, 1, and 5 strains able to produce ZEN, DON, and T2, which accounted for 62.1%, 3.4%, and 17.2%, respectively. Strain JK3-3 can produce ZEN, DON, and T2, while strains BH1-4-1, BH6-5, and BH16-2 can produce ZEN and T2. PCR detected six key synthase genes of Tri1, Tri7, Tri8, Tri13, PKS14, and PKS13 in strain JK3-3, which synthesized three toxins of ZEN, DON, and T2. Four key synthase genes of Tri8, Tri13, PKS14, and PKS13 were detected in strains BH1-4-1, BH6-5, and BH16-2, which were responsible for the synthesis of ZEN and T2. The results showed that the key genes of toxin biosynthesis were highly correlated with the toxins produced by Fusarium, and the biosynthesis of toxin was strictly controlled by the genetic information of the strain. This study provides a data basis for the targeted prevention and control of exo-genous mycotoxins in P. heterophylla and a possibility for the development of PCR for rapid detection of toxin contamination.


Subject(s)
Caryophyllaceae , Chromatography, Liquid , Fusarium/genetics , Mycotoxins , Tandem Mass Spectrometry
8.
Article in Chinese | WPRIM | ID: wpr-921668

ABSTRACT

Zearalenone(ZEN) is a mycotoxin produced by Fusarium, possessing estrogen-like effects, carcinogenicity, and multiple toxicities. To seek more efficient and practical agents for biological detoxification and broaden their application, this study isolated 194 bacterial strains from the moldy tuberous root of Pseudostellaria heterophylla, which were co-cultured with ZEN. An efficient ZEN-degrading strain H4-3-C1 was screened out by HPLC and identified as Acinetobacter calcoaceticus by morphological observation and molecular identification. The effects of culture medium, inoculation dose, culture time, pH, and temperature on the degradation of ZEN by H4-3-C1 strain were investigated. The mechanism of ZEN degradation and the degrading effect in Coicis Semen were discussed. The degradation rate of 5 μg·mL~(-1) ZEN by H4-3-C1 strain was 85.77% in the LB medium(pH 6) at 28 ℃/180 r·min~(-1) for 24 h with the inoculation dose of 1%. The degradation rate of ZEN in the supernatant of strain culture was higher than that in the intracellular fluid and thalli. The strain was inferred to secret extracellular enzymes to degrade ZEN. In addition, the H4-3-C1 strain could also degrade ZEN in Coicis Semen. If the initial content of ZEN in Coicis Semen was reduced from 90 μg·g~(-1) to 40.68 μg·g~(-1), the degradation rate could reach 54.80%. This study is expected to provide a new strain and application technology for the biological detoxification of ZEN in food processing products and Chinese medicinal materials.


Subject(s)
Bacteria , Fusarium , Mycotoxins , Temperature , Zearalenone
9.
Article in Chinese | WPRIM | ID: wpr-879016

ABSTRACT

There is no consensus on the content, accumulation, transformation and content determination methods of phenolic acids in fresh Salvia miltiorrhiza. In order to find out the true content of phenolic acids in fresh S. miltiorrhiza, a variety of treatment me-thods were used in this study to prepare sample solution. The content changes of phenolic acids in S. miltiorrhiza samples with different dehydration rates were investigated during drying and shade drying processes. Polyphenol oxidase(PPO) of S. miltiorrhiza was extracted and purified by ammonium sulfate precipitation and dialysis to investigate the enzymatic properties. The content of rosmarinic acid, lithosperic acid and S. nolic acid B in S. miltiorrhiza was determined by UPLC. The results showed that the content of phenolic acids in fresh S. miltiorrhiza was highest when it was homogenized with 1 mol·L~(-1) HCl solution or 1 mol·L~(-1) HCl methanol solution. There was no significant difference in the content of phenolic acids in S. miltiorrhiza with different dehydration rates, indicating that there was no correlation between phenolic acid content and dehydration rate. The optimum pH of S. miltiorrhiza PPO was 7.6 and the optimum temperature was 40 ℃. With catechol as substrate, S. miltiorrhiza PPO had the enzymatic browning reaction which was in compliance with Michaelis equation, with Michaelis constant K_m of 0.12 mol·L~(-1) and V_(max) of 588.23 U·min~(-1). The inhibitory effect of citric acid, disodium ethylenediamine tetraacetate, ascorbic acid and sodium sulfite on S. miltiorrhiza PPO increased with the increase of inhibitor concentration, and sodium sulfite showed the strongest inhibitory effect. The present study proved that there were a large number of phenolic acids in fresh S. miltiorrhiza, which were the secondary metabolite of primitive accumulation during the growth of S. miltiorrhiza, rather than the induced product of postharvest drying and dehydration stress. This study has reference value and significance for the cultivation, harvest and processing of S. miltiorrhiza.


Subject(s)
Catechol Oxidase , Desiccation , Hydroxybenzoates , Plant Roots , Salvia miltiorrhiza
10.
Article in Chinese | WPRIM | ID: wpr-888178

ABSTRACT

The present study aimed to explore the mechanism of the sweating of Dipsacus asper on content changes of triterpene sa-ponins by detecting the total triterpene saponins and the index component asperosaponin Ⅵ in the crude and sweated D. asper, and analyzing the differentially expressed proteins by isobaric tags for relative and absolute quantification(iTRAQ) combined with LC-MS/MS. After sweating, the content of total triterpene saponins decreased manifestly, while that of asperosaponin Ⅵ increased significantly. As revealed by the iTRAQ-LC-MS/MS analysis, 140 proteins with significant differential expression were figured out, with 50 up-regulated and 90 down-regulated. GO analysis indicated a variety of hydrolases, oxido-reductases, and transferases in the differential proteins. The results of activity test on two differentially expressed oxido-reductases were consistent with those of the iTRAQ-LC-MS/MS analysis. As demonstrated by the analysis of enzymes related to the triterpene saponin biosynthesis pathway, two enzymes(from CYP450 and UGT families, respectively, which are involved in the structural modification of triterpene saponins) were significantly down-regulated after sweating. The findings suggested that sweating of D. asper presumedly regulated triterpene saponins by affecting the expression of downstream CYP450 s and UGTs in the biosynthesis pathway of triterpene saponins of D. asper.


Subject(s)
Chromatography, Liquid , Dipsacaceae , Humans , Saponins , Sweating , Tandem Mass Spectrometry , Triterpenes
11.
Acta Pharmaceutica Sinica ; (12): 2302-2307, 2021.
Article in Chinese | WPRIM | ID: wpr-887049

ABSTRACT

We investigated the effect of methyl jasmonate (MeJA) on the content of asperosaponin VI and the expression of genes involved in its synthesis. Dipsacus aspero seedlings were treated with MeJA at different concentrations of 50, 100, 150, 200 and 300 μmol·L-1, and leaves and roots were sampled following treatment for 1, 3 and 5 days. The content of asperosaponin VI and superoxide anion in the roots, malondialdehyde (MDA) content in leaves and superoxide dismutase were determined. The results show that 150 μmol·L-1 MeJA significantly increased the accumulation of asperosaponin VI in roots. The content of asperosaponin VI was greatest after treatment for 3 days, and was 2.16 times higher than the control. After MeJA treatment, SOD activity decreased and MDA content increased in leaves. Moreover, superoxide anion content in roots increased. The expression of squalene epoxidase (DaSE1) and geranyl diphosphate synthase (DaGPS), key enzymes in the synthesis of asperosaponin VI, were up-regulated compared with the control group. These results indicate that an optimal concentration of 150 μmol·L-1 MeJA increases the accumulation of asperosaponin VI by up-regulating the expression of key enzymes involved in the synthesis of asperosaponin VI, which facilitates resistance to adversity stress stimulated by MeJA.

12.
Article in English | WPRIM | ID: wpr-880618

ABSTRACT

OBJECTIVES@#Chondrocyte apoptosis is an important process in the pathogenesis of osteoarthritis. Mangiferin exerts multiple pharmacological effects such as anti-inflammatory and anti-apoptosis. However, the role of mangiferin in chondrocyte apoptosis is not clear. In this study, we aimed to explore the role of mangiferin in IL-1β-induced chondrocyte apoptosis.@*METHODS@#ATDC5 cells were randomly divided into a control group, a IL-1β group, a MFN-L group, a MFN-M group, a MFN-H group and a MFN+LY294002 group. Cells in the control group were treated with IL-1β (10 ng/mL) for 24 h; cells in the MFN-L group, the MFN-M group and the MFN-H group were pretreated with 5, 10 and 20 μmol/L mangiferin for 1 h respectively, and then they were treated with IL-1β (10 ng/mL) for 24 h; cells in the MFN+LY294002 group were treated with LY294002 (25 μmol/L) for 1 h, then mangiferin (20 μmol/L) and IL-1β (10 ng/mL) for 1 h and 24 h, respectively. Cell viability was detected by CCK-8 assay and cell apoptosis was measured by flow cytometry. Colorimetric assay was conducted to measure the caspase-3 activity. The protein levels of Bcl-2, Bax, and phosphoinositide 3-kinase (PI3K)/Akt signaling pathway related proteins were detected by Western blotting.@*RESULTS@#Compared to the control group, cell viability was significantly decreased; cell apoptosis, caspase-3 activity and Bax protein expression were significantly increased; the protein levels of Bcl-2, p-PI3K, and p-Akt were significantly decreased in the IL-1β group (all @*CONCLUSIONS@#Mangiferin could attenuate IL-1β-induced apoptosis of the mice chondrocytes, which is mediated by the activation of PI3K/Akt signaling pathway.


Subject(s)
Animals , Apoptosis , Chondrocytes , Interleukin-1beta , Mice , Phosphatidylinositol 3-Kinases , Proto-Oncogene Proteins c-akt , Xanthones
13.
Article in Chinese | WPRIM | ID: wpr-879101

ABSTRACT

This study steps through four key principles, four open problems and future perspectives of Chinese materia medica(CMM) ecological agriculture by presenting the historical development, existing theories and practice outcomes. Then, it focuses on refining the main principles of CMM ecological agriculture:(1)the principles of ecological niche associated with yield and comprehensive income;(2)principles of biological diversity associated with the integrated control of diseases, pests and weeds;(3)principles of adversity effects associated with the quality improvement of CMM;(4)principles of structural stability associated with the sustainable development of CMM ecological agriculture. On this basis, four burning issues of CMM ecological agriculture were obtained,(1)ecological planting mode and supporting technologies need to be perfect;(2)multi-integrated industrial coupling remains to strengthen;(3) quality assurance system of CMM ecological agriculture and high-quality and favorable price model remains to be formed;(4)awareness of the demonstration and extension of CMM ecological agriculture needs to be desired. Finally, suggestions for the sustainable development of CMM ecological agriculture are put forward:(1)strengthen the national planning and layout, develop CMM ecological agriculture accor-ding to local conditions;(2)pay equal attention to inheritance and innovation, and strengthen the theory and practical technology research of CMM ecological agriculture;(3)strengthen industrial coupling and realize the transformation of CMM ecological agriculture from a production-based to a multi-in-one compound model;(4)intensify standards and brands, building a quality assurance system for CMM ecological products;(5) publicize the demonstration and popularization of CMM ecological agriculture. In summary, the development of CMM ecological agriculture possessed a firmer theory and practice foundation, although there is still much room for improvement. A better field of Chinese medicine agricultural development with immense economic and social benefits will not a question of "if" but "when" by accurately grasp the way forward.


Subject(s)
Agriculture , China , Drugs, Chinese Herbal , Materia Medica , Medicine, Chinese Traditional
14.
Article | WPRIM | ID: wpr-833433

ABSTRACT

Objective@#: An important factor during pituitary adenoma surgery is to preserve pituitary stalk (PS) as this plays a role in reduction of the risk of postoperative diabetes insipidus. The hypothalamic-hypophyseal tract (HHT) projects through the PS to the posterior pituitary gland. To reconstruct white matter fiber pathways, methods like diffusion tensor imaging (DTI) tractography have been widely used. In this report we attempted to predict the position of PS using DTI tractography and to assess its intraoperative correlation during surgery of pituitary adenomas. @*Methods@#: DTI tractography was used to tract the HHT in nine patients before craniotomy for pituitary adenomas. The DTI location of the HHT was compared with the PS position identified at the time of surgery. DTI fiber tracking was carried out in nine patients prior to the planned craniotomy for pituitary adenomas. In one patient, the PS could not be identified during the surgery. In the other eight patients, a comparison was made between the location of the HHT identified by DTI and the position of the PS visualized at the time of surgery. @*Results@#: The position of the HHT identified by DTI showed consistency with the intraoperative position of the PS in seven patients (88.9% concordance). @*Conclusion@#: This study shows that DTI can identify the position of the HHT and thus the position of the PS with a high degree of reliability.

15.
Article in Chinese | WPRIM | ID: wpr-878674

ABSTRACT

Objective To investigate the therapeutic effect of SPK1 gene transfected adipose derived mesenchymal stem cells(ADMSC)on experimental autoimmune encephalomyelitis mice and the effect on T helper cell 17(Th17)/regulatory T(Treg) cells balance. Methods EAE was induced by myelin oligodendrocyte glycoprotein 35-55 in mice.Totally 44 mice were randomly divided into four groups:normal control group(NC group),model group(EAE group),ADMSC group,and ADMSC-SPK1 group.Forty days after injection,the pathological changes of brain and spinal cord,Th17/Treg-related inflammatory markers in brain tissue,expressions of interleukin-17A(IL-17A)and forkhead box protein p3(Foxp3)in brain and spinal cord tissue,and flow cytometric results of spleen immune cells were detected. Results Forty days after the injection,serious inflammatory cell infiltration and demyelination occurred in the brain and spinal cord of EAE group,whereas demyelination and axonal injury were improved in ADMSC group and ADMSC-SPK1 group.Compared with EAE group,the ADMSC group and ADMSC-SPK1 group had significantly improved levels of IL-17A(


Subject(s)
Adipose Tissue/cytology , Animals , Cytokines , Encephalomyelitis, Autoimmune, Experimental/therapy , Interleukin-17 , Mesenchymal Stem Cell Transplantation , Mesenchymal Stem Cells/cytology , Mice , Mice, Inbred C57BL , Phosphotransferases (Alcohol Group Acceptor)/genetics , T-Lymphocytes, Regulatory/cytology , Th17 Cells/cytology , Transfection
16.
Article in Chinese | WPRIM | ID: wpr-793273

ABSTRACT

Objective To explore the associations of body mass index (BMI), waist circumference (WC), waist height ratio (WHtR) and the prevalence of hypertension in elderly residents over 60 years in Baodi district, Tianjin. Methods Residents over 60 who underwent medical examinations in the Koudong Health Center, Baodi district, Tianjin, were all invited to participate in the study from April to May, 2018. Participants were asked to fill out structured questionnaires and undergo physical examinations. Stratified analysis and logistic regression analysis were applied to examine joint effects and interactions of BMI and WC (or WHtR) on the risk of hypertension. Results A total of 1 417 residents (83.75%) out of 1 692 residents participated in the study. The prevalence of hypertension in the participants was 46.36%. 66.50% of the participants were BMI overweight or obese. Participants with central obesity accounted for 74.66% (measured by the WC) and 75.38% (by the WHtR). Compared to the normal weight measured by the BMI or the WC, BMI overweight (OR=1.65, 95%CI: 1.19-2.30) or obesity (OR=3.41, 95%CI: 2.23-5.20) and WC central obesity (OR: 1.49, 95%CI: 1.00-2.23) were associated with increased risk of hypertension. The joint effects of BMI and WC (OR=2.49, 95%CI: 1.78-3.46), or BMI and WHtR (WHtR overweight: OR=2.05, 95%CI: 1.41-2.99; WHtR obesity: OR=2.37, 95%CI: 1.50-3.76) were greater than the single effect of the latter (WC overweight/obesity: OR=1.39, 95%CI: 0.90-2.15; WHtR overweight: OR=1.02, 95%CI: 0.62-1.66; WHtR obesity: OR=1.44, 95%CI:0.55-3.81). Conclusions Of the three indices, BMI is strongly correlated with the risk of hypertension. BMI overweight or obesity has enhanced the association of WC or WHtR and the risk of hypertension, suggesting that weight control in the normal range, especially measured by the BMI index, may prevent and control hypertension.

17.
Article in Chinese | WPRIM | ID: wpr-866508

ABSTRACT

Objective:To understand the current situation of syphilis infection among 12 295 blood donors in Huainan area, so as to provide reference for the management of public health.Methods:The Treponema pallidum(TP) antibody of the blood donors was screened by enzyme-linked immunosorbent assay, and the unqualified blood donors for TP antibody were confirmed by Treponema pallidum particle agglutination(TPPA).Results:There were 48 blood donors TPPA positive among 12 295 blood donors in Huainan area, and the TPPA positive rate was 3.90‰(48/12 295). There was no statistically significant difference in the TPPA positive rate of the different gender blood donors[male 3.12‰(22/7 048) vs.female 4.96‰(26/5 247)] in Huainan area( u=1.61, P>0.05). There was statistically significant difference in the TPPA positive rate of the different marriage blood donors[married 5.33‰(42/7 884) vs.unmarried 2.01‰(6/2 989)] in Huainan area( u=2.33, P<0.05). There was statistically significant difference in the TPPA positive rate of the blood donors among different education level in Huainan area(χ 2=29.94, P<0.05). There was no statistically significant difference in the TPPA positive rate of the blood donors among ABO blood groups in Huainan area(χ 2=2.24, P>0.05). Conclusion:There are significant differences in the TPPA positive rates of the blood donors among marital status and education level in Huainan area.

18.
Article in Chinese | WPRIM | ID: wpr-862997

ABSTRACT

Objective:To investigate the human cytomegalovirus(HCMV)infection and hearing impairment in infants with congenital and perinatal diseases of the Bo′ai Hospital in Zhongshan City, and to explore the risk factors of hearing impairment and clinical outcomes.Methods:A total of 243 cases of infants with congenital and perinatal HCMV infection were collected from Bo′ai Hospital from January 2016 to December 2018.Clinical data and brainstem auditory evoked potential(BAEP)results were analyzed retrospectively.Logistic regression analysis was performed to identify the risk factors of hearing impairment.The children with hearing loss were followed up in out-patient.Results:Positive rates of congenital and perinatal HCMV infection in infants were 4.56%(121/2654), 2.76%(74/2686)and 3.15%(85/2701)from 2016 to 2018 in our hospital respectively.In 243 cases, there were 107 cases with normal hearing(44%), 33 cases with suspicious hearing impairment(14%)and 103 cases with hearing impairment(42%). Multivariate logistic regression analysis showed that the age less than 1 month( P=0.034)and CMV-DNA positive( P=0.003)were independent risk factors for hearing impairment.The manifestations of hearing impairment were various.Twenty cases with suspected hearing impairment were not treated with ganciclovir, in which 19 cases BAEP became normal.Sixty-seven cases with hearing impairment were followed up, of whom 47 cases received standardized ganciclovir antiviral therapy: 30 cases returned to normal, and 12 cases improved, and 3 cases showed no significant changes, and 2 cases aggravated.Twenty cases did not received the antiviral therapy: 5 cases returned to normal, and 8 cases improved, and 3 cases showed no significant changes, and 4 cases aggravated. Conclusion:There was a high rate of HCMV infection of congenital and perinatal infants in our hospital.Infected infants have a higher proportion of hearing impairment.Infants less than 1 month and CMV-DNA positive are more likely to suffer from hearing impairment.It can be considered for clinical observation for the cases with slightly elevated hearing threshold.Standardized ganciclovir antiviral therapy has obvious effect on hearing improvement.

19.
Article in Chinese | WPRIM | ID: wpr-872855

ABSTRACT

Objective:Isolate and identify Mycena, expand the resources of geminating fungus of Gastrodia elata and optimize the culture conditions of Mycena,in order to provide information and guidance for the production of geminating fungus of G. elata. Method:Juvenile tuber tissue mass transfer separation and purification technology was used for the separation and purification of strains,traditional morphology microscopy was used to isolate the colony mycelia spores morphological characteristics, such as identification,polymerase chain reaction(PCR) amplification rDNA (Ribosomal DNA) internal transcribed spacer(ITS) was used for sequencing analysis and further homology with NCBI database retrieval,MEGA6 software was used to establish Phylogenetic tree by the Maximum likelihood method (MaximumLikelihood,M-L), so as to classify and identify isolated strains. At the same time,orthogonal test was used to optimize the optimal growth conditions of Mycena. Result:A total of 86 strains were isolated, which belong to 21 species in 12 genera. WMMFJ,SHXG,WMM-21 and MFJ8103 were identified as M. purpureofusca, and ZT01-6 and ZT01-8 were identified as M. cf. purpureofusca. The growth rate of Mycena in wheat bran medium was significantly higher than in PDA medium. The optimal medium composition for the growth of germinating bacteria was 100 g potato,150 g wheat bran and 20 g corn flour,100 g glucose. And 1,3,5-Trihydroxybenzene significantly promoted the growth of WMMFJ,and played a role in promoting the growth of WMM-21 and ZT01-6,and 2-Methoxyphenol promoted the growth of WMMFJ. Conclusion:Six strains of Mycena were isolated and identified,four of them are M. purpureofusca,and two of them are M. cf. Purpureofusca. The separation method improved the separation effect of germinating bacteria.

20.
Article in Chinese | WPRIM | ID: wpr-872851

ABSTRACT

Objective:To explore the effects of high temperature stress on the growth characteristics of different Armillaria strains,and to provide guidance for screening excellent Armillaria strains with high-temperature resistance. Method:14 strains of Armillaria from different G. elata producing areas were used as experimental materials to observe the growth characteristics and conduct phenotypic classification for the strains. rDNA-IGS sequence analysis was used for molecular identification to further determine the genetic relationship of the tested strains.The strain growth rate, biomass,mycelial length and other indicators under the condition of 23 ℃ (CK) and 30 ℃ high temperature stress were recorded. Result:All the 14 strains of Armillaria had the highest similarity and the closest relationship with Armillaria gallica,but there were significant differences in growth characteristics among different G. elata producing areas. The 14 strains of Armillaria were classified into Ⅳ groups,and the growth status was groupⅠ>group Ⅱ>group Ⅲ>group Ⅳ. After treatment with high temperature stress,the tolerance of each strain to high temperature also showed obvious differences,as shown in the average growth rate of the mycelial was GZ16>SX1>GZ1. The rank of relative mycelial length was GZ16>SX1>GZ3 and the relative biomass was GZ16>SX4>GZ1>HB1>AH2. Conclusion:Under high temperature stress,GZ16 was best in growth rate,relative length of mycelial,relative biomass and growth state,followed by SX1 and GZ1 strains. The results indicate that strains GZ16,SX1 and GZ1 have the strong resistance to high temperature and excellent growth characteristics at normal temperature,so these three strains are suitable to be produced in main G. elata producing areas in China.

SELECTION OF CITATIONS
SEARCH DETAIL