139 results on '"Xu YM"'
Search Results
2. [Effects of Nano-copper Oxide on Physiobiochemical Properties of Brassica chinensis L. and Its Heavy Metal Accumulation Under Cadmium Stress].
- Author
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Wang SQ, Sun YB, Huang QQ, Xu YM, Dong RY, and Meng QY
- Subjects
- Copper, Cadmium toxicity, Antioxidants, Oxides, Superoxide Dismutase, Metals, Heavy toxicity, Brassica
- Abstract
To investigate the effects of nano-copper oxide (CuO NPs) on plant growth, physio-biochemical characteristics, and heavy metal content under cadmium stress, a hydroponics experiment was conducted on the effects of single and combined treatments of CuO NPs (0, 10, 20, and 50 mg·L
-1 ) and Cd (0, 1, and 5 μmol·L-1 ) on the fresh weight, photosynthetic pigment content, MDA content, antioxidant enzyme activity (CAT, POD, SOD, and GR), and Cu and Cd contents in Brassica chinensis L. The results showed that under the single addition of CuO NPs, the fresh weight and activities of CAT, POD, and GR were inhibited as a whole. Photosynthetic pigment content and SOD activity increased first and then decreased with the increase in CuO NPs concentration, whereas MDA content in leaves and roots, and Cu content in subcells of B. chinensis L. increased with the increasing of CuO NPs. As compared with that in the control, CuO NPs promoted the growth of B. chinensis L., and the fresh weight increased by 8.70%-44.87% at 1 μmol·L-1 Cd. When the content of Cd was up to 5 μmol·L-1 , a low content (10 mg·L-1 ) of CuO NPs promoted the growth of B. chinensis L., whereas a high concentration (50 mg·L-1 ) showed an inhibitory effect. The addition of CuO NPs could increase photosynthetic pigment and MDA contents under different Cd stress, and MDA content in leaves and roots of B. chinensis L. increased by 4.34%-36.27% and 13.43%-131.04%, respectively, than that in the control groups. Under the same concentration of 1 μmol·L-1 Cd, the addition of CuO NPs decreased the activities of CAT and GR, whereas the activity of POD increased. When the content of Cd was up to 5 μmol·L-1 , CuO NPs increased the POD activity and inhibited the activity of SOD and GR. The activities of CAT and CAT in the leaves of B. chinensis L. initially showed an increasing and then decreasing trend. CuO NPs and Cd showed antagonistic effects, the maximum reduction of Cd content in leaves and roots of Brassica chinensis L. under 1 μmol·L-1 Cd treatment was 45.64% and 33.39%, and that under 5 μmol·L-1 Cd treatment was 18.25% and 25.35%, respectively. The content of Cu and Cd in subcellular organs of the plants decreased, but the proportion of soluble components increased. These results indicated that CuO NPs at low concentrations promoted plant growth under Cd stress and further inhibited the absorption of Cd but increased the oxidative damage to B. chinensis L.- Published
- 2023
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3. [Expression of GPNMB in renal eosinophilic tumors and its value in differential diagnosis].
- Author
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Wang Y, Hou MY, Fu Y, Meng K, Wu HY, Chen J, Xu YM, Shi J, and Fan XS
- Subjects
- Humans, Diagnosis, Differential, Biomarkers, Tumor metabolism, Membrane Glycoproteins, Kidney Neoplasms pathology, Carcinoma, Renal Cell pathology, Angiomyolipoma diagnosis, Leukemia, Myeloid, Acute diagnosis
- Abstract
Objective: To investigate the expression of glycoprotein non metastatic melanoma protein B (GPNMB) in renal eosinophilic tumors and to compare the value of GPNMB with CK20, CK7 and CD117 in the differential diagnosis of renal eosinophilic tumors. Methods: Traditional renal tumor eosinophil subtypes, including 22 cases of renal clear cell carcinoma eosinophil subtype (e-ccRCC), 19 cases of renal papillary cell carcinoma eosinophil subtype (e-papRCC), 17 cases of renal chromophobe cell carcinoma eosinophil subtype (e-chRCC), 12 cases of renal oncocytoma (RO) and emerging renal tumor types with eosinophil characteristics [3 cases of eosinophilic solid cystic renal cell carcinoma (ESC RCC), 3 cases of renal low-grade eosinophil tumor (LOT), 4 cases of fumarate hydratase-deficient renal cell carcinoma (FH-dRCC) and 5 cases of renal epithelioid angiomyolipoma (E-AML)], were collected at the Affiliated Drum Tower Hospital of Nanjing University Medical School from January 2017 to March 2022. The expression of GPNMB, CK20, CK7 and CD117 was detected by immunohistochemistry and statistically analyzed. Results: GPNMB was expressed in all emerging renal tumor types with eosinophil characteristics (ESC RCC, LOT, FH-dRCC) and E-AML, while the expression rates in traditional renal eosinophil subtypes e-papRCC, e-chRCC, e-ccRCC and RO were very low or zero (1/19, 1/17, 0/22 and 0/12, respectively); the expression rate of CK7 in LOT (3/3), e-chRCC (15/17), e-ccRCC (4/22), e-papRCC (2/19), ESC RCC (0/3), RO (4/12), E-AML(1/5), and FH-dRCC (2/4) variedly; the expression of CK20 was different in ESC RCC (3/3), LOT(3/3), e-chRCC(1/17), RO(9/12), e-papRCC(4/19), FH-dRCC(1/4), e-ccRCC(0/22) and E-AML(0/5), and so did that of CD117 in e-ccRCC(2/22), e-papRCC(1/19), e-chRCC(16/17), RO(10/12), ESC RCC(0/3), LOT(1/3), E-AML(2/5) and FH-dRCC(1/4). GPNMB had 100% sensitivity and 97.1% specificity in distinguishing E-AML and emerging renal tumor types (such as ESC RCC, LOT, FH-dRCC) from traditional renal tumor types (such as e-ccRCC, e-papRCC, e-chRCC, RO),respectively. Compared with CK7, CK20 and CD117 antibodies, GPNMB was more effective in the differential diagnosis ( P <0.05). Conclusion: As a new renal tumor marker, GPNMB can effectively distinguish E-AML and emerging renal tumor types with eosinophil characteristics such as ESC RCC, LOT, FH-dRCC from traditional renal tumor eosinophil subtypes such as e-ccRCC, e-papRCC, e-chRCC and RO, which is helpful for the differential diagnosis of renal eosinophilic tumors.
- Published
- 2023
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4. [Concordance between three integrated scores based on prostate biopsy and grade-grouping of radical prostatectomy specimen].
- Author
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Fu Y, Cai J, Chen Y, Zhou Q, Xu YM, Shi J, and Fan XS
- Subjects
- Male, Humans, Retrospective Studies, Prostatectomy methods, Biopsy, Prostate surgery, Prostate pathology, Prostatic Neoplasms surgery, Prostatic Neoplasms pathology
- Abstract
Objective: To analyze three different integrated scoring schemes of prostate biopsy and to compare their concordance with the scoring of radical prostatectomy specimens. Methods: A retrospective analysis of 556 patients with radical prostatectomy performed in Nanjing Drum Tower Hospital, Nanjing, China from 2017 to 2020. In these cases, whole organ sections were performed, the pathological data based on biopsy and radical prostatectomy specimens were summarized, and 3 integrated scores of prostate biopsy were calculated, namely the global score, the highest score and score of the largest volume. Results: Among the 556 patients, 104 cases (18.7%) were classified as WHO/ISUP grade group 1, 227 cases (40.8%) as grade group 2 (3+4=7); 143 cases (25.7%) as grade group 3 (4+3=7); 44 cases (7.9%) as grade group 4 (4+4=8) and 38 cases (6.8%) as grade group 5. Among the three comprehensive scoring methods for prostate cancer biopsy, the consistency of global score was the highest (62.4%). In the correlation analysis, the correlation between the scores of radical specimens and the global scores was highest ( R =0.730, P <0.01), while the correlations of the scores based on radical specimens with highest scores and scores of the largest volume based on biopsy were insignificant ( R =0.719, P <0.01; R =0.631, P <0.01, respectively). Univariate and multivariate analyses showed tPSA group and the three integrated scores of prostate biopsy were statistically correlated with extraglandular invasion, lymph node metastasis, perineural invasion and biochemical recurrence. Elevated global score was an independent prognostic risk factor for extraglandular invasion and biochemical recurrence in patients; increased serum tPSA was an independent prognostic risk factor for extraglandular invasion; increased hjighest score was an independent risk factor for perineural invasion. Conclusions: In this study, among the three different integrated scores, the overall score is most likely corresponded to the radical specimen grade group, but there is difference in various subgroup analyses. Integrated score of prostate biopsy can reflect grade group of radical prostatectomy specimens, thereby providing more clinical information for assisting in optimal patient management and consultation.
- Published
- 2023
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5. [Clinicopathological analysis of pulmonary alveolar proteinosis].
- Author
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Xu YM, Wang Q, Xiao YL, Yang J, Zheng JY, Bai T, Zhou Q, Sun Q, Feng AN, and Meng FQ
- Subjects
- Humans, Pulmonary Alveolar Proteinosis pathology
- Published
- 2023
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6. [The prevalence of atrial cardiomyopathy in patients with different types of acute ischemic stroke and its relationship with cryptogenic stroke].
- Author
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Wang YY, Liu XJ, Pei LL, Liu K, Hu RY, Wang X, Sun WX, Zhang LY, Liang J, Xu YM, and Song B
- Subjects
- Humans, Ischemic Stroke, Atrial Fibrillation, Cardiomyopathies epidemiology
- Abstract
Objective: To investigate the prevalence of atrial cardiomyopathy in patients with different types of acute ischemic stroke and its relationship with cryptogenic stroke. Methods: Patients with acute ischemic stroke within 7 days of onset who were admitted to the Department of Neurology of the First Affiliated Hospital of Zhengzhou University from January to September 2019 were prospectively and consecutively enrolled. All included patients were classified according to TOAST classification of ischemic stroke. Chi-square test was used to compare the prevalence of atrial cardiomyopathy among patients with different TOAST classifications. Multivariate logistic regression model was used to analyze the related factors of cryptogenic stroke. Results: A total of 1 098 patients with acute ischemic stroke were enrolled in the study, including 661 males and 437 females, with a median age [ M ( Q
1 , Q3 )] of 61 (53, 68) years. The prevalence of atrial cardiomyopathy in patients with cryptogenic stroke[53.5% (46/86)] was higher than that in patients with large artery atherosclerosis [38.0%(63/166), P =0.018] and small vessel occlusion [19.4%(37/191), P <0.001], but was lower than that of patients in the cardioembolic group [97.3% (72/74), P< 0.001]. Multivariate logistic regression analysis showed that atrial cardiomyopathy was an associated factor for cryptogenic stroke ( OR =2.945, 95% CI : 1.766-4.911, P <0.001). Conclusions: Atrial cardiomyopathy is associated with cryptogenic stroke. The prevalence of atrial cardiomyopathy in patients with cryptogenic stroke is higher than that in patients with large artery atherosclerosis and small vessel occlusion, but lower than that in patients with cardiac embolism.- Published
- 2022
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7. [The correlation between plasma heat shock proteins 90α levels and white matter hyperintensity in patients with cerebral small vessel disease].
- Author
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Yu WK, Wang YC, Li YP, Gao Y, Zong C, Xu YM, and Li YS
- Subjects
- Aged, Female, Heat-Shock Proteins, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Cerebral Small Vessel Diseases, HSP90 Heat-Shock Proteins metabolism, Leukoaraiosis, White Matter pathology
- Abstract
Objective: To investigate the relationship between plasma heat shock proteins 90α(Hsp90α) levels and the white matter hyperintensity(WMH) in patients with cerebral small vessel disease(SVD). Methods: Patients admitted to the Department of Neurology, the First Affiliated Hospital of Zhengzhou University from March to August 2021 and diagnosed with WMH by magnetic resonance examination (MRI) were selected as the case group, matched with physical examination patients who visited the Department of Medical Examination during the same period and showed no WMH on MRI and no history of neurological diseases as the control group, and the level of plasma Hsp90α was quantitatively detected by enzyme-linked immunosorbent assay. Mann-Whitney U test was used to compare whether there was a difference in plasma Hsp90α levels between the control group and the case group.Multivariate logistic regression analysis was used to explore the related factors of WMH in patients with SVD. Results: Of the 183 subjects, the control group ( n =73) consisted of 28 males and 45 females, aged (54±10) years, while the case group ( n =110) consisted of 71 males and 39 females, aged (64±10) years old. Plasma Hsp90α level was higher in the case group than that of the control group [53.33(35.33, 70.09) ng/ml vs 35.02(18.51, 54.95) ng/ml, P <0.001]. After adjusting for confounding factors by multivariate analysis, the results showed that plasma Hsp90α levels greater than 58.34 ng/ml was associated with WMH ( P= 0.002, OR =5.931, 95% CI :1.955-17.995). Conclusion: Higher level of plasma Hsp90α is associated with WMH in patients with SVD.
- Published
- 2022
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8. [Variations in Cadmium Accumulation and Transport and Ionomic Traits Among Different Winter Wheat Varieties].
- Author
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Liu C, Xu YM, Huang QQ, Tao XY, Wang L, Sun YB, and Zhao LJ
- Subjects
- Edible Grain chemistry, Seasons, Soil, Triticum genetics, Triticum metabolism, Cadmium analysis, Soil Pollutants analysis
- Abstract
A field trial was conducted to identify the key factors affecting intraspecific variation in the cadmium (Cd) content in the grain of winter wheat. Three wheat cultivars with low Cd accumulation and two wheat cultivars with high Cd accumulation were planted. The Cd accumulation and transport and ionomic traits were examined in different organs of the tested wheat cultivars. Additionally, correlation analysis and principal component analysis were used to identify the key plant organs, translocation pathways, and elements that determine the intraspecific variation in the Cd content in wheat grain. The results showed that the bioaccumulation factors of Cd in glume, rachis, internode 1, and node 1, as well as the transport factors of Cd from rachis to grain, from rachis to glume, from internode 1 to rachis, and from node 1 to internode 1, were significantly correlated with Cd bioaccumulation factors in grain. The above-mentioned bioaccumulation factors and transport factors of Cd made a great contribution to the principal components that could discriminate between the wheat cultivars with low and high Cd accumulation and were significantly different among cultivars. Therefore, glume, rachis, internode 1, and node 1 were the key organs affecting the genotype differences in Cd content in wheat grain, and Cd translocation from rachis to grain, from rachis to glume, from internode 1 to rachis, and from node 1 to internode 1 were the key pathways controlling the variety differences in Cd accumulation in wheat grain. The analysis of wheat ionome showed that the bioaccumulation factors of Mg and Mn in the key organs and the transport factors of Mo, Cr, and Pb in the key transport pathways were significantly correlated with the bioaccumulation factor of Cd in wheat grain and contributed greatly to the differentiation between the wheat cultivars with low and high Cd accumulation in the principal component analyses. Thus, in the above-mentioned key organs and transport pathways, Mg, Mn, Mo, Cr, and Pb were the key elements affecting the genotype differences in Cd content in wheat grain.
- Published
- 2022
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9. [Application of skin phosphorylated synuclein in the diagnosis of dementia with Lewy body].
- Author
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Li LJ, Yang J, Yuan YP, Wang YY, Liu XJ, Jiang CY, and Xu YM
- Subjects
- Biopsy, Humans, Skin, Alzheimer Disease diagnosis, Lewy Body Disease diagnosis
- Abstract
Patients with dementia with Lewy body(DLB), Alzheimer disease (AD), frontotemporal dementia (FTP), progressive supranuclear palsy (PSP) and healthy controls in the Department of Neurology, the First Affiliated Hospital of Zhengzhou University from August 2019 to March 2021 were recruited, with 3 in each group. Phosphorylated α-synuclein from the skin of DLB patients was detected by skin micro-biopsy and compared with patients with AD, FTP, PSP and health controls. Phosphorylated α-synuclein was found in the skin nerves of the DLB patients, while no α-synuclein were detected in the skin samples of others. Skin phosphorylated α-synuclein may potentially become a diagnostic biomarker of DLB, however further studies are warranted to assess its sensitivity and specificity.
- Published
- 2022
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10. [ Experience of secondary orthodontic treatment in an adolescent case of skeletal class Ⅱ].
- Author
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Kou BG, Xu YM, Zhang ZY, Feng YL, Ma HX, and Gu ZX
- Subjects
- Adolescent, Cephalometry, Humans, Orthodontics, Corrective, Malocclusion, Angle Class II diagnostic imaging, Malocclusion, Angle Class II therapy, Malocclusion, Angle Class III
- Published
- 2021
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11. [Clinical application and evaluation of socket shield technique].
- Author
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Tan Z, Fu G, Wen JR, Xu YM, Liu WJ, Kang J, and Gong P
- Subjects
- China, Dental Implantation, Endosseous, Esthetics, Dental, Humans, Retrospective Studies, Tooth Extraction, Tooth Socket surgery, Treatment Outcome, Dental Implants, Single-Tooth, Immediate Dental Implant Loading
- Abstract
Objective: To further improve socket shield technique. The treatment outcome and the key related factors in Asian population are evaluated by measuring the root fragment and alveolar crest parameters in immediate implant placement cases with socket shield. Methods: A total of 18 patients, with 21 implants placed using socket shield technique were included in this retrospective study. Fourteen implants of 11 cases were recruited from West China Hospital of Stomatology, Sichuan University, 7 implants of 7 cases were recruited from Stomatological Hospital of Chongqing Medical University. The relationship between the thickness of the root fragment, the vertical height of the root fragment and the dimensional changes of buccal alveolar bone in 6 months was analyzed respectively. The pink-white esthetic scores were evaluated. The complications were recorded, analyzed and preventive measures were put forward. Results: There is a negative correlation between the vertical height of tooth fragment and the buccal crest height reduction ( r =-0.458, P =0.037). There were negative correlations between the thickness of the tooth fragment with the vertical dimensional changes ( r =-0.574, P =0.007) and horizontal dimensional changes ( r =-0.619, P =0.003) of buccal alveolar bone. Three cases with internal exposure were recorded during the treatment. No severe complications were observed. Every case achieved a satisfying pink-white esthetic outcome according to the existing treatment protocols. Conclusions: Rigorous case screening, delicate surgical procedures, and maintaining adequate thickness of the root are the key to achieve a good esthetic outcome of implant treatment with socket shield technique.
- Published
- 2020
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12. [Effects of Intercropping of Brassica chinenesis L. and Tagetes patula L. on the Growth and Cadmium Accumulation of Plants].
- Author
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Yan XX, Xu YM, Wang L, Tao XY, Sun YB, and Liang XF
- Subjects
- Biodegradation, Environmental, Cadmium analysis, Soil, Brassica, Soil Pollutants analysis, Tagetes
- Abstract
A pot experiment was conducted to reveal the effects of intercropping a low-cadmium (Cd) accumulating cultivar and a Cd hyperaccumulator on the safe utilization and phytoextraction of Cd-polluted soils. Two cultivars of Brassica chinensis L. (the low-Cd accumulating cultivar Huajun, and the common cultivar Hanlü), were intercropped with four cultivars of Tagetes patula L. (Dwarf Red, Dwarf Yellow, Tall Red, and Tall Yellow). We examined the biomass, photosynthetic characteristics, and Cd accumulation in the plants and available Cd content and dissolved organic carbon (DOC) content in the soils. The results show that under the intercropping treatments, the biomass of B. chinensis decreased significantly and those of T. patula increased significantly, compared with the monoculture treatments. When intercropped with T. patula , the net photosynthetic rate, stomatal conductance, and transpiration rate in the leaves of B. chinensis decreased significantly, compared with the monoculture treatments. When Huajun was intercropped with Dwarf Red, the shoot Cd content of Huajun significantly decreased by 14.5%, and that of Dwarf Red increased significantly by 36.5% compared with the monoculture. Under the other intercropping treatments, the shoot Cd content of B. chinensis increased significantly, or showed no significant change, and that of T. patula showed no significant change. Under the intercropping treatments, the total amount of Cd in the shoot of B. chinensis decreased significantly, and that of T. patula increased significantly, compared with the monoculture. There were no significant differences in the Cd extraction ratios between the intercropping treatments and the monoculture of T. patula. The shoot Cd content of B. chinensis was significantly correlated with soil available Cd content and DOC content ( P <0.01 and P <0.05, respectively). In conclusion, the intercropping treatment of Huajun and Dwarf Red significantly reduced shoot Cd content in B. chinensis and increased that in T. patula , and it did not affect the Cd extraction ratio. This is suitable for the safe utilization and phytoextraction of Cd-polluted soils.
- Published
- 2020
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13. [Effect of Mn-Modified Biochar on the Characteristics of Aggregate Structure and the Content of Cd in Weakly Alkaline Cd-Contaminated Soil].
- Author
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Sun T, Fu YT, Li K, Xu YM, and Sun YB
- Abstract
Field experiments were conducted to investigate the effects of Mn-based modified rice husk biochar on soil organic carbon, aggregate structure, mass load, and the content of available Cd in aggregates. The results showed that the concentration of soil organic carbon increased gradually with additional modified biochar, resulting in a 3.2%-32% increase compared with the CK. Modified biochar improved the composition structure and stability of soil aggregates, and increased the amount of large aggregates (5-8 mm and 2-5 mm), while micro-aggregate production was inhibited (≤0.25 mm). Compared with the CK, mean weight diameter (MWD), geometrical mean weight (GMD), and soil aggregate structural body ( R
0.25 ) of the soil aggregates increased by 15.1%-20.3%, 8.1%-22.4%, and 0.43%-7.6%, respectively. Cd was preferentially enriched on small aggregates, and the mass loading of Cd in soil aggregates increased gradually with decreasing particle size. The distribution factor of Cd showed significant enrichment in the 0.5-1 mm and 0.25-0.5 mm grain sizes, whereas it showed a clear loss in particle sizes of 5-8 mm and 2-5 mm. The addition of modified biochar reduced the content of DTPA-Cd in soil aggregates, causing 7.6%-15.1%, 15.6%-24.3%, 3.6%-13.8%, and 11.6%-13.7% reductions in 5-8, 2-5, 0.5-1.0, and 0.25-0.5 mm particle sizes, respectively. In general, modified biochar not only has a favorable optimizing function on the structure of soil aggregates, but also decreases the content of available Cd in different sizes of soil aggregates, increasing its significance in the remediation of Cd-contaminated soil.- Published
- 2020
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14. [Effects of NaHS on MBP and learning and memory in hippocampus of mice with spinocerebellar ataxia].
- Author
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Jiang HB, Dong JX, Qin YF, Liu JC, Jiang WJ, Li RN, Liu LC, Tian YD, Xu YM, and DU AL
- Subjects
- Animals, Hippocampus drug effects, Male, Mice, Myelin Basic Protein, Neuroprotective Agents pharmacology, Neuroprotective Agents therapeutic use, Rats, Hydrogen Sulfide, Learning drug effects, Memory drug effects, Spinocerebellar Ataxias drug therapy, Sulfides pharmacology, Sulfides therapeutic use
- Abstract
Objective: To investigate the effects of exogenous NaHS on myelin basic protein (MBP) and learning and memory of hippocampal neurons in mice with spinocerebellar ataxia type 3 (SCA3) and its therapeutic significance. Methods: Twelve male normal mice were randomly selected as normal control group (NC Group), and 48 SCA3 mice were randomly selected as SCA3 model group (M Group), low dose group (NL Group, 10 μmol/kg), medium dose group (NM Group, 50μmol/kg) and high dose group (NH Group, 100 μmol/kg), 12 rats in each group. The drug treated groups were injected with NaHS intraperitoneally once a day for 4 weeks. The changes of learning and memory ability of SCA3 mice before and after the intervention of different doses of NaHS were determined by Morris water maze, the content of hydrogen sulfide (H
2 S) in hippocampus was measured by spectrophotometry, the expression of MBP was detected by immunohistochemistry, and the morphological changes of neuron myelin sheath were observed by electron microscope. Results: Compared with the control group, the learning and memory ability of SCA3 mice was decreased significantly (P<0.05), and the content of H2 S in hippocampus was decreased (P<0.05). After different doses of exogenous NaHS treatment, the learning and memory ability was improved in different degrees (P<0.05), and the contents of H2 S and MBP in hippocampus of SCA3 mice were also improved in different degrees (P<0.05). Conclusion: Exogenous NaHS may increase the contents of H2 S and MBP in the hippocampus of SCA3 mice, which may have a protective effect on the neurons, and then improve the learning and memory ability of SCA3 mice, and provide a new idea for the treatment of SCA3.- Published
- 2020
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15. [Effect of Different Passivating Agents on the Stabilization of Heavy Metals in Chicken Manure Compost and Its Maturity Evaluating Indexes].
- Author
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Luan RY, Gao S, Xu YM, Ji YN, Yan CX, and Sun YB
- Subjects
- Animals, Chickens, Composting, Manure, Metals, Heavy analysis, Soil Pollutants analysis
- Abstract
We explore the effects of different passivating agents on livestock manure treatment by using chicken manure and straw as raw materials and thermophilic rapid fermentation. We investigate the effects of sepiolite (SE), calcium magnesium phosphate fertilizer (NP), biochar (BI), compounds of sepiolite plus calcium magnesium phosphate fertilizer (S+N), sepiolite plus biochar (S+B), calcium magnesium phosphate fertilizer plus biochar (N+B), and sepiolite plus calcium magnesium phosphate fertilizer and biochar (SNB) on the physical and chemical characteristics, heavy metal fraction and distribution, and organic matter content in chicken manure compost. The results showed that the addition of different passivating agents significantly increased the pH in chicken manure organic fertilizer ( P <0.05). The seed germination rate was increased after applying of passivation agents, being>80%, and the germination inhibition rate decreased accordingly, whereas the values of electric conductivity (EC) and organic carbon were inhibited. The total nitrogen content and carbon/nitrogen ratio (C/N) were lower than of those before composting, and all of the indicators reached the standard of organic fertilizer maturity. However, differences among the groups after composting were that the pH increase in the compounding treatment was comparatively higher, and that the EC decreased significantly under the treatment of the single sepiolite and calcium magnesium phosphate, whereas the total nitrogen content and C/N ratio of organic carbon were not significantly different in each group. Although the total amount of heavy metals in our organic chicken manure fertilizer increased due to a concentration effect, the proportion of exchangeable heavy metals in the fertilizer decreased, and while the ratio of the residual heavy metals increased. The passivation effect on heavy metals under combined treatments of different materials was better than that of a single agent, and the SNB treatment had the best effect on the passivation of Ni, Zn, As, and Pb. After composting treatment, the concentrations of humic substances (HS) and humic acid (HA) increased significantly ( P <0.05), and the highest concentrations increased by 19.8% and 78.9%, respectively. The amount of fulvic acid (FA) decreased by 4.47%-20.11% compared with the initial conditions. Infrared spectroscopy analysis showed that the small molecular substances of polysaccharides increased after composting. In summary, the addition of a passivation agent can promote the heavy metal passivation in chicken manure organic fertilizers to potentially render the compost as harmless.
- Published
- 2020
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16. [Substructure Characteristics of Combined Acid-Base Modified Sepiolite and Its Adsorption for Cd(Ⅱ)].
- Author
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Xie S, Xu YM, Yan CX, Luo WW, and Sun YB
- Abstract
To enhance the adsorption capacity of sepiolite (Sep) on Cd
2+ in solution, an acid-base Sep (ABsep) was obtained using the method of combined acid-base modification. The structural properties of Sep and ABsep were analyzed by adsorption-desorption isotherms of N2 , scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray powder diffraction (XRD). Static adsorption experiments were carried out to evaluate the effects of time, mass ratio of ABsep/Cd2+ , temperature, adsorbent dose, pH, and co-existing ions on the adsorption of Cd2+ by ABsep. The results showed that the pore structure of the ABsep was more developed than that of Sep. In comparison to Sep, the specific surface area, average pore diameter, and pore volume of ABsep increased by 66.1%, 15.7%, and 34.8%, respectively, and the exchangeable ion contents also increased. The main components of the ABsep were SiO2 and Mg(OH)2 . The adsorption process of Cd2+ by Sep and ABsep could be well fitted with a pseudo-second-order kinetic equation and Langmuir isotherm, and both were spontaneous endothermic reactions, which were mainly chemical adsorption along with physical adsorption. The best mass ratio of ABsep:Cd2+ was 3:1, and the maximum saturated adsorption capacity fitted by the Sips model of the ABsep on Cd2+ at 298 K was 142.43 mg·g-1 , which was 3.55 times that of Sep. As the adsorbent dose increased, the adsorption amounts of Cd2+ first increased and then decreased, with the optimum dose being 0.3 g·L-1 . The amount of Cd2+ adsorption by the ABsep increased with the initial pH of the solution, whereby the best pH was 7. We also found that the presence of K+ , Na+ , Mg2+ , and Ca2+ at different concentrations could inhibit the adsorption of Cd2+ , whereby the inhibition of Mg2+ was the highest.- Published
- 2020
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17. [Comparison of clinical effects of a modified socket shield technique and the conventional immediate implant placement].
- Author
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Xu YM, Huang H, Wang L, Wu QQ, Fu G, and Li J
- Subjects
- Esthetics, Dental, Humans, Tooth Extraction, Tooth Socket, Treatment Outcome, Dental Implants, Single-Tooth, Immediate Dental Implant Loading
- Abstract
Objective: To compare the clinical effects of a modified socket shield technique (SST) and the conventional immediate implant placement in the esthetic zone., Methods: Twenty-four patients with one hopeless upper incisor were consecutively enrolled in this study. All patients were scheduled for immediate implant placement. Twelve patients underwent a modified SST (experimental group) whereas the others underwent conventional procedures (control group). Radiographic and clinical data were obtained preoperatively, immediately after surgery, and 12 months after surgery. The success rate of the implants, the pink esthetic score (PES) and patient satisfaction were analyzed. Statistical analysis was conducted using SPSS 21.0 software., Results: One year after operation, the success rate of the implants was 100% in both groups. The PES and patient satisfaction of the experimental group were significantly higher than those of the control group (P<0.05). The buccal bone plate resorbed less in the experimental group than in the control group (P<0.05)., Conclusions: The modified SST is advantageous over the conventional immediate implant placement in terms of buccal bone and soft tissue maintenance.
- Published
- 2019
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18. [Efficacy of nasal CPAP and aerobic exercise of different intensity in patients with obstructive sleep apnea hypopnea syndrome and type 2 diabetes mellitus].
- Author
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Shen HH, Xu YM, Wang N, Wang J, Ren L, and Chen R
- Subjects
- Aged, China, Continuous Positive Airway Pressure, Exercise, Female, Humans, Male, Middle Aged, Diabetes Mellitus, Type 2, Sleep Apnea, Obstructive
- Abstract
Objective: To explore the therapeutic efficacy of nasal Continuous Positive Airway Pressure (CPAP) and aerobic exercise of different intensity in patients with Obstructive Sleep Apnea Hypopnea Syndrome (OSAHS) and Type 2 Diabetes Mellitus (T2DM). Methods: A total of 112 patients with OSAHS and T2DM, including 53 males and 59 females, with a mean age of (66.9±7.8) years old, from the Fourth Rehabilitation Hospital of Shanghai and the Second Affiliated Hospital of Soochow University from January 2017 to December 2018 were enrolled prospectively. There were divided into two groups based on whether received nasal CPAP therapy: 50 cases in nasal CPAP+aerobic exercise group and 62 cases in aerobic exercise group. Subsequently, patients in nasal CPAP+aerobic exercise group were randomly divided into two subgroups: moderate and low intensity aerobic exercise (26 and 24 cases respectively). All patients completed nasal CPAP and (or) aerobic exercise of different intensity for 20 weeks. The therapeutic efficacy of polysomnography (PSG) parameters, glycolipid metabolism, 6 minutes walking distance (6 MWD), and rate of perceived exertion (RPE) were compared between each group before and after treatment. Results: Pre-and post-intervention, PSG parameters, body mass index (BMI) [(26.6±3.7) vs (24.3±2.8) kg/m(2)], RPE [(16.4±1.3) vs (12.2±2.6) score], 6 MWD [(372.6±59.7) vs (441.5±75.6) m] and glucolipid metabolism indexes were improved significantly in nasal CPAP+aerobic exercise group (all P< 0.05), such as fasting blood glucose [(7.4±2.4) vs (6.2±1.6) mmol/L], glycosylated hemoglobin [(7.6±1.2)% vs (6.6±0.7)%], fasting insulin [(10.8±4.4) vs (6.9±3.4) μU/L], insulin resistance index [(3.5±1.9) vs (1.9±1.2)], total cholesterol [(4.0±0.9) vs (3.5±0.9) mmol/L], low density lipoprotein cholesterol [(4.2±0.6) vs (3.1±0.8) mmol/L]; BMI, exercise endurance, some glucolipid metabolism indexes and PSG parameters were also improved in aerobic exercise group ( P< 0.05). After 20 weeks' intervention, it showed statistically significant differences in PSG parameters, glycometabolism, some lipid metabolism indexes and RPE (all P< 0.05), and no significantly difference in BMI [(24.3±2.7) vs (24.3±2.8) kg/m(2)] between the two groups. Compared with the low intensity subgroup, there were significant improvement in 2 hours' postprandial insulin, insulin resistance index, low density lipoprotein cholesterol, lipoprotein A, RPE, 6 MWD in moderate subgroup ( P< 0.05). Conclusion: Nasal CPAP combined with moderate intensity aerobic exercise can effectively improve the glucolipid metabolism, insulin resistance and exercise tolerance in patients with OSAHS and T2DM.
- Published
- 2019
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19. [Predictive value of serum glycosylated hemoglobin for the onset of nonalcoholic fatty liver disease].
- Author
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Chen CX, Du J, Xu YM, Han JX, Zhu ZW, Mao YS, and Guo CY
- Subjects
- Aged, Blood Pressure, Body Mass Index, Female, Humans, Male, Metabolic Syndrome, Middle Aged, Risk Factors, Waist Circumference, Glycated Hemoglobin analysis, Non-alcoholic Fatty Liver Disease blood, Non-alcoholic Fatty Liver Disease diagnosis
- Abstract
Objective: To discuss the affect of glycosylated hemoglobin (HbA1c) level for the onset of nonalcoholic fatty liver disease (NAFLD) in cohort population. Methods: An epidemiological survey of the relationship between HbA1c and NAFLD conducted in 2012 was based at cohort baseline, and three follow-up sessions conducted in 2013, 2014 and 2015. In total 2 811 subjects were included in the study after exclusion of NAFLD patients at baseline and those who lost their lives due to relocation, and death. The Cox proportional hazard model was used to analyze the relationship between glycosylated hemoglobin and other risk factors of NAFLD. Continuous variables were compared using the t -test or the Mann-Whitney test. χ (2)-test was used for the measurement of categorical data. Results: A total of 2 811 subjects with mean age of 59 (58.2±9.8) years old, including 1 664 males and 1 147 females. Age, waist circumference, body mass index, systolic blood pressure, γ-glutamyltransferase and fasting blood glucose level of HbA1c abnormal group were higher than normal group. The incidence of NAFLD in the abnormal HbA1c level group (25.4%) was higher than normal group (14.9 %), and diastolic blood pressure, high-density lipoprotein cholesterol was lower than normal group and the differences were statistically significant. During the three follow-up intervals, there were 440 new cases of NAFLD, consisting 285 males and 155 females with cumulative incidence of 15.7% (440/2 811). Multivariate Cox regression analysis showed that patients with elevated HbA1c had a higher risk of developing NAFLD ( HR 1.796; 95% CI 1.335~2.418; P < 0.01), and the increased HbA1c level after adjustment for gender, age, and metabolic syndrome-related factors remained an independent risk factors for NAFLD ( HR 1.580; 95.0% CI 1.161-2.152; P < 0.01). Conclusion: An elevated HbA1c levels have a positive predictive value for the onset of NAFLD.
- Published
- 2018
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20. [Association between IL-10-1082G/A gene polymorphism and susceptibility of recurrent oral ulcer: meta analysis].
- Author
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DU QG, Xu YM, Wu TT, and Fu G
- Subjects
- Asian People, Humans, Risk Factors, Genetic Predisposition to Disease, Interleukin-10 genetics, Oral Ulcer genetics, Polymorphism, Genetic
- Abstract
Purpose: To systematically review the association between interleukin-10 (IL-10) -1082G/A gene polymorphism and susceptibility of recurrent oral ulcer (ROU) by meta analysis., Methods: Databases of PubMed, Embase, Web of Science, CNKI, CBM, WanFang, and VIP were electronically searched to collect studies published up to August 2017 about the association between IL-10-1082G/A gene polymorphism and ROU susceptibility. According to the inclusion and exclusion criteria, two reviewers independently screened literature and extracted data, the methodological quality assessment and heterogeneity test of included studies were performed. Meta analysis was performed with RevMan5.3 software., Results: A total of 6 case-control studies were included, which involved 668 ROU patients in case group and 769 healthy individuals in control group. In the general population, the results of meta analysis showed that, under 3 genetic models including allele model (G vs A), recessive model (GG+GA vs AA) and heterozygous model (GA vs AA), there was significant association between IL-10-1082G/A gene polymorphism and ROU susceptibility (G vs A: OR=1.31, 95%CI 1.03 to 1.66, P=0.03; GG+GA vs AA: OR=1.45, 95%CI 1.16 to 1.82, P=0.001; GA vs AA: OR= 1.33, 95%CI 1.04 to 1.70, P=0.02). In the Asian population, meta analysis result was consistent with the general population., Conclusions: IL-10-1082G/A gene polymorphism is associated with ROU susceptibility. Individuals with G allele and GA genotype have a higher risk of ROU. Future more well-designed, large sample and multicenter studies are greatly needed to verify our conclusion.
- Published
- 2018
21. [Characteristics of Heavy Metals in Chicken Manure Organic Fertilizers in the Huang-Huai-Hai Region and related Environmental Risk Assessment].
- Author
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Li F, Xu YM, Wang L, Liang XF, Sun YB, Ji YN, and Luan RY
- Subjects
- Animals, Chickens, Cities, Environmental Monitoring, Risk Assessment, Fertilizers, Manure analysis, Metals, Heavy analysis, Soil Pollutants analysis
- Abstract
One hundred and twenty types of chicken manure organic fertilizer samples were collected from five provinces and two cities in the Huang-Huai-Hai region, to investigate heavy metal content, fractionation, and environmental risk through toxicity characteristic leaching procedures. Results showed that content of heavy metals in chicken manure organic fertilizer varied greatly, in the order of Zn > Cu > Pb > As > Cd. When compared with the standard for organic manure, ratios of Cd, As, and Pb exceeded the standard by 6.7%, 47.05%, and 14.28%, respectively. Moreover, the content of heavy metals varied significantly in different provinces. Cd and Zn in organic manure fertilizers were mainly Fe and Mn oxide-bound fractions, accounting for 37.3% and 43.79%, respectively. However, the proportion of residual fractions of Pb, organically-bound fractions of Cu, and exchangeable forms of As were higher. Contents of TCLP-Zn,-Cu,-Cd,-Pb and-As in organic manure were 41.11, 33.3, 0.07, 1.25, and 0.21 mg·kg
-1 , respectively. The number of samples in which Zn and Pb in organic manure exceeded the standard was 6 and 5, respectively, with these mainly obtained from Hebei and Jiangsu provinces. There was a significant correlation between total content of Zn, Cu, Cd, and As in organic manure and content of TCLP ( P <0.05). Based on an annual manure application rate of chicken manure of 15 t·hm-2 , safe application of chicken manure is in the order of Henan > Tianjin > Anhui=Shandong=Jiangsu > Hebei > Beijin.- Published
- 2018
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22. [Effect of Foliar Zinc Application on Bioaccessibility of Cadmium and Zinc in Pakchoi].
- Author
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Wang L, Gu PL, Li R, Xu YM, Sun YB, Liang XF, and Dai JJ
- Subjects
- Cadmium metabolism, Fertilizers, Soil Pollutants metabolism, Vegetables metabolism, Zinc metabolism
- Abstract
Two cultivars of pakchoi with different cadmium (Cd) accumulation were grown in nutrient solutions containing low and sufficient zinc (Zn) levels. ZnSO
4 and ZnNa2 EDTA were applied as foliar fertilizers. The bioaccessibilities of Cd and Zn in pakchoi were assessed by the in vitro digestion method, and the bioaccessible established daily intakes (BEDI) of Cd and Zn from pakchoi were calculated. The effect of foliar zinc application on concentrations, bioaccessibilities, and BEDIs of Cd and Zn in pakchoi was evaluated. Results show that the Cd concentrations in shoots of the tested pakchoi cultivars under sufficient Zn condition were significantly lower than those under low Zn condition, and foliar application of ZnNa2 EDTA significantly decreased the Cd concentrations of pakchoi. The tested pakchoi cultivars with sufficient Zn had a significantly higher mean shoot Zn concentration than those with low Zn. Foliar Zn treatments significantly increased shoot Zn concentrations of pakchoi, with the highest in the ZnSO4 treatment. Cd bioaccessibility in the tested pakchoi cultivars with sufficient Zn was significantly lower than that with low Zn. Foliar applied Zn could significantly reduce Cd bioaccessibility in the gastric phase, with a maximal reduction of 35.81% compared to the control. Foliar treatment with ZnSO4 could significantly decrease Cd bioaccessibility in the small intestinal phase, with a maximal reduction of 59.24% compared to the control. Foliar Zn treatments reduced significantly the Zn bioaccessibility of pakchoi in the gastric and small intestinal phases, with a maximal reduction of 68.90% compared to the control. The reduction of Zn bioaccessibility was higher in the ZnSO4 treatment than in the ZnNa2 EDTA treatment. Via the consumption of the Cd-contaminated common cultivar Hanlv, the BEDI values of Cd were higher than that of the provisional tolerable daily intake (PTDI) standard of WHO [0.83 μg·(kg·d)-1 ]. However, via the consumption of the low-Cd accumulating cultivar Huajun or pakchoi with foliar application of ZnSO4 , the BEDI values of Cd decreased significantly and were below the PTDI value. Via the consumption of pakchoi in the control or low-level ZnNa2 EDTA treatments, the BEDI values of Zn were below that of the recommended nutrient intake for Zn. However, via the consumption of pakchoi with foliar application of ZnSO4 or high-level ZnNa2 EDTA, the BEDI values of Zn were higher than that of the recommended nutrient intake and met the human needs for Zn from vegetables. Under the ZnSO4 treatment, the BEDI values of Zn from pakchoi were the highest. In conclusion, foliar zinc application could significantly reduce the bioaccessibilities of Cd and Zn in pakchoi and the BEDI values of Cd and increase the BEDI values of Zn. Foliar application with ZnSO4 was the most suitable treatment to reduce Cd intake and increase Zn intake from pakchoi.- Published
- 2018
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23. [The correlation between CT score of lung injury and oxygenation index in patients with acute hydrogen sulphide poisoning].
- Author
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Yang ZH, Xu YM, Jiang XY, Lin JJ, Wang DS, Chen YL, and Zhao HL
- Subjects
- Acute Lung Injury, Humans, Respiratory Distress Syndrome, Retrospective Studies, Blood Gas Analysis, Hydrogen Sulfide poisoning, Lung diagnostic imaging, Lung Injury chemically induced, Tomography, X-Ray Computed
- Abstract
Objective: To explore correlation between chest CT score and oxygenation index in patients with acute hydrogen sulphide poisoning, whether CT score can be applied to assess acute lung injury after acute hydrogen sulfide poisoning and provide basis and reference. Methods: The clinic and a series of CT datas of 32 acute hydrogen sulphide poisoning cases were retrospectively analysed and compared, According to GBZ31-2002 (the diagnostic standard of occupational H(2)S acute poisoning) , these patients were divided into 2 grouds including moderate groud and severe groud; The CT score were improved, referenceing the scoring criteria of the chest X-ray; The difference of the CT score and the oxygenation index were analyzed between moderate and severe group in the acute phase and the disperse phase; The correlation between CT score and oxygenation index were analyzed. Results: The CT score in moderate poisoning group were lower than severe group (2.26±1.37 vs 10.44±2.55, 1.34±0.65 vs 4.55±2.45, all P<0.05) in the acute phase and the dissipation phase.The oxygen index of the 19 cases in the acute phase were 307.55±28.29, and the oxygen index of the 8 cases in the dissipation phase was 435.75±37.00; The oxygen index of the 9 cases in the acute phase and the dissipation phase were respectively 193.17±36.41, 347.67±44.49. The oxygen partial pressure and oxygenation index in severe group were significantly lower than those in moderate group (all P<0.01) in the acute phase and the dissipation phase. Pearman correlation analysis showed that the CT score were negatively correlated to the oxygen index in the acute phase and the dissipation phase, respectively (r=-0.97、-0.75, all P<0.01) . Conclusions: The CT score of lung injury and oxygenation index is negatively correlated. The CT score can be used to evaluate the degree of lung injury, and can be used in the evaluation of acute lung injury after acute hydrogen sulfide poisoning.
- Published
- 2017
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24. [Analysis on quality and differences of Mentha haplocalyx from different regions].
- Author
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Xu YM, Yue W, Sang MR, Wu DW, Liu CC, Zhao LL, and Wu QN
- Subjects
- Gas Chromatography-Mass Spectrometry, Plant Oils chemistry, Plants, Medicinal chemistry, Drugs, Chinese Herbal standards, Mentha chemistry, Oils, Volatile chemistry
- Abstract
A gas chromatography-mass spectrometry(GC-MS)method was established for the analysis of volatile components in Mentha haplocalyx, and seven principal components were quantified by gas chromatography(GC). Based on these analyses, the differences of volatile components in M. haplocalyx from Jiangsu, Anhui and other regions were compared. The results showed that the volatile oil of M. haplocalyx was divided into four chemical types:menthol-menthone type, pulegone-menthone type, piperitone-menthol type, piperitone epoxide type, and menthol-menthone type was the principal type. Menthol was the highest and pulegone was the lowest. The differences of M. haplocalyx from Anhui and other regions were obvious. The major volatile components and the differences of M. haplocalyx from different regions were confirmed and a quantitative method was established for the determination of volatile components, which provided the basis for improving the quality standard of M. haplocalyx., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2017
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25. [Analyses of exercise-induced muscle damage-specific microRNA expression and molecular target of sarcolemmal damage in rats].
- Author
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Xu YM, Cao JM, Li JP, Huang QT, and Wang P
- Subjects
- Animals, Dystrophin genetics, MAP Kinase Kinase 4 genetics, MAP Kinase Signaling System, Male, Random Allocation, Rats, Rats, Sprague-Dawley, Real-Time Polymerase Chain Reaction, Utrophin genetics, MicroRNAs genetics, Physical Conditioning, Animal adverse effects, Running, Sarcolemma pathology
- Abstract
In the present study, we were to screen the specific microRNA (miRNA) of exercise-induced muscle damage (EIMD) and assess the EIMD-specific miRNAs-regulated target of sarcolemmal damage in rats. Twenty-four male Sprague-Dawley (SD) rats were randomly divided into 3 groups, which included sedentary (C), 24 h post-exercise (E24) and 48 h post-exercise (E48) groups. Rat EIMD model was established by an acute eccentric exercise, i.e., a downhill running treatment at -16º gradient. EIMD characteristics were verified by Evans blue dye staining, differentially expressed miRNAs were detected by microarray assay, EIMD-specific miRNAs expressions were further validated by real-time quantitative RT-PCR (RT-qPCR), and targets of the miRNAs were predicted based on mRNA expressions of associated proteins and related pathway core molecules of sarcolemmal damage. Two EIMD-specific expressed miRNAs, including miR-206-3p and miR-139-3p, were found in the study. There was a significantly negative correlation (P < 0.05) between miR-206-3p expression and dystrophin (r = -0.68), utrophin (r = -0.64), JNK (r = -0.62) or ERK1 (r = -0.68) respectively, but no correlation was found between miR-139-3p and these biomolecules. The results suggest that: i) the expression profile of miRNAs in rat is significantly affected by EIMD, ii) miR-206-3p and miR-139-3p are the EIMD-specific miRNAs, and iii) miR-206-3p may control sarcolemmal damage by regulating dystrophin, utrophin, JNK and ERK1.
- Published
- 2017
26. [Application of modified percutaneous rotating dilative tracheostomy with fiberoptic bronchoscope in critical patients of ICU: a control study for four kinds of tracheostomy].
- Author
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Zhang H, Xu Y, Li H, Zhang Y, Cui L, Zhao L, Yao Q, and Xie F
- Subjects
- Bronchoscopes, Bronchoscopy, Hemorrhage, Humans, Incidence, Intensive Care Units, Prospective Studies, Punctures, Trachea, Tracheotomy, Tracheostomy
- Abstract
Objective: To investigate the clinical application of modified percutaneous rotating dilative tracheostomy with fiberoptic bronchoscope (MPRDT-FOB) in critical patients of intensive care unit (ICU) by comparing it with percutaneous dilative tracheostomy (PDT), modified percutaneous dilative tracheostomy (MPDT), and percutaneous dilative tracheostomy with fiberoptic bronchoscope (PDT-FOB)., Methods: A prospective control study was conducted. 240 critical patients underwent tracheotomy admitted to ICU of Mudanjiang Medical University Hongqi Hospital from February 2011 to November 2016 were enrolled, and they were randomly divided into four groups with 60 patients in each group. The patients in PDT group received traditional Portex method for tracheotomy. The patients in MPDT group received PDT method first, in the process of puncture and expansion, the trachea catheter was always retained in situ, and then retreated to the puncture site about 16-18 cm from incisor after withdrawal of the dilator. The patients in PDT-FOB group received PDT with fiberoptic bronchoscope. The patients in MPRDT-FOB group received PDT-FOB combined with MPDT, in bronchoscope expansion incision, and was replaced with rotary expander to the anterior wall of the trachea. The duration of operation, the size of incision, blood loss during operation, and the rate of disposable success, as well as the incidence of perioperative and long-term complications among four kinds of tracheostomy were compared., Results: Compared with PDT and PDT-FOB, the duration of operation in MPDT and MPRDT-FOB was significantly shortened (minutes: 6.57±3.59, 7.09±2.55 vs. 12.20±2.01, 10.13±2.37), the size of incision was significantly diminished (cm: 1.20±1.00, 1.20±0.90 vs. 1.59±1.18, 1.32±1.24), and the amount of blood loss during operation was significantly decreased (mL: 6.81±2.19, 6.60±1.99 vs. 10.28±3.68, 8.11±2.96, all P < 0.05). There were no significant differences in above parameters between MPDT and MPRDT-FOB, but those in MPRDT-FOB were better than MPDT, and the rate of disposable success in MPRDT-FOB was significantly higher than that of MPDT [100.00% (60/60) vs. 91.67% (55/60), P < 0.05]. The perioperative complications of four methods, such as postoperative bleeding, arrhythmia and bronchospasm, were recorded, but the incidences in MPRDT-FOB were lower than those of PDT, MPDT, and PDT-FOB. Patients in PDT and MPDT had more posterior wall injury or perforation, aspiration and intubation difficulties, while PDT-FOB and MPRDT-FOB had no above complications. The most common long-term complication of PDT was tracheal fistula, and the incidence was significantly higher than that of MPDT (25.00% vs. 13.33%, P < 0.05). However, there was no tracheoesophageal fistula report in PDT-FOB and MPRDT-FOB. Incision swallowing dysfunction, excessive phlegm, incision infection, tube collapse, airway stenosis, delayed healing, granulation or scar, and other complications of the four methods group were rare, and the differences was not statistically significant (all P > 0.05)., Conclusions: It was proved that MPRDT-FOB to be a time-saving, easy-to-operate way with few complication. Moreover, it was able to deal with the problems of the tracheal wall injury or perforation, tracheoesophageal fistula, and hypoxia. Hence, it was better than PDT, MPDT, and PDT-FOB.
- Published
- 2017
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27. [Effects of Enhanced Ultraviolet B Irradiation on Photosynthetic and Antioxidant System of Sorghum Seedlings].
- Author
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Shi XX, Li Z, Yang KJ, Zhao CJ, Yang RB, Yu GB, Huang SG, Xu JY, He L, Zhao Y, Xu YM, Ma LF, and Fan BW
- Subjects
- Antioxidants, Biomass, Chlorophyll, Photosynthesis, Plant Leaves, Seedlings, Ultraviolet Rays, Sorghum
- Abstract
The UV-B radiation on the surface of our planet has been enhanced due to gradual thinning of ozone layer. The change of solar spectrum UV-B radiation will cause damage to all kinds of terrestrial plants at certain degree. In this paper, taking breeding sorghum (Sorghum bicolor (L.Moench))variety Longza No.5 as sample, 40 μW·cm-2 UV-B radiation treatment was conducted on sorghum seedlings at two-leaf and one-heart stage and different time courses; then after a 2 d recovering, photosynthetic parameters were measured with a photosynthetic apparatus; the activities of antioxidant enzymes were detected as well. Our results revealed that, as the dosages of UV-B increasing, leaf browning injury was aggravated, plants dwarfing and significantly were reduced fresh weight and dry weight were observed; anthocyanin content was significantly increased; chlorophyll and carotenoid content significantly were reduced and net photosynthetic rate and chlorophyll fluorescence parameters were decreased. Meanwhile, with the increase in UV-B dosages, stomatal conductance, intercellular CO2 concentration and transpiration rate showed “down - up - down” trend; the activities of SOD and GR presented “down - up” changes; activities of POD and CAT demonstrated “down - up - down”, and APX, GPX showed an “up - down - up” pattern. It is worth to note that, under the four-dose treatment, a sharp decline in net photosynthesis in sorghum seedlings was observed at 6 h UV-B treatment (equals to 2.4 J·m-2), and an obvious turning point was also found for other photosynthetic parameters and activities of antioxidant enzymes at the same time point. In summary, the results indicated that the enhanced UV-B radiation directly accounted for the damages in photosynthesis system including photosynthetic pigment content, net photosynthetic rate and chlorophyll fluorescence parameters of sorghum; the antioxidant system showed different responses to UV-B radiation below or above 6 h treatment: ASA-GSH cycle was more sensitive to low-dose UV-B radiation, while high-dose UV-B radiation not only undermined the photosynthesis system, but also triggered plant enzymatic and non-enzymatic antioxidant systems, resulting in leaf browning and necrosis,biomass accumulation reduction, plant dwarfing and even death.
- Published
- 2016
28. [Determination of 14 components in Bazibushen capsule by UPLC-ESI-MS/MS].
- Author
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Song GS, Zhou L, Xu YM, Zhang XR, and Zhang LT
- Subjects
- Capsules, Chromatography, High Pressure Liquid, Tandem Mass Spectrometry, Drugs, Chinese Herbal analysis
- Abstract
The study developed a method for the determination of 14 components in Bazibushen capsule by UPLC-ESI-MS/MS. Waters ACQUITY BEH C(18) column (50 mm × 2.1 mm,1.7 μm) was used and the column temperature was 40 ℃.A linear gradient elution of eluents A (acetonitrile) and B(0.1% acetic acid) was used for the separation. The source temperature was set at 150 ℃.The capillary voltage was set at 2.0 k V. The source offset voltage was kept at 50 V. The desolvation temperature was set at 500 ℃.The desolvation flow was 800 L·h(-1).The cone flow was 150 L·h(-1). The nebuliser pressure was 7.0 Bar . Multiple reaction monitoring mode (MRM) is adopted. All of the 14 components showed good linearity (r2 > 0.999 1) in the test ranges. The LOQs for the compounds ranged from 0.11-4.52 ng·m L(-1), respectively.The RSDs were 0.8%-2.1%.The overall recoveries were between 97.89% and 101.9% for all compounds. The method is simple, rapid, accurate and highly reproducible, and may be used in the determination of 14 components in Bazibushen capsule.
- Published
- 2016
29. [Treatment of a case of ataxia and pyramidal tract sign positive contact with the organic solvent].
- Author
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Zhang ZD, Wang BL, and Xu YM
- Published
- 2016
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30. [Simultaneous quantification of 7 coumarins in common cnidium fruit by GC-MS].
- Author
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Song GS, Xu YM, Zhou L, and Zhang LT
- Subjects
- Gas Chromatography-Mass Spectrometry, Cnidium chemistry, Coumarins analysis, Fruit chemistry
- Abstract
A GC-MS-SIM method was developed for the simultaneous determination of the 7 coumarins in common cnidium fruit. The 7 bioactive constituents were separated on DB-1 capillary column(30 m × 0.25 mm, 0.25 μm) using temperature programming. The interface temperature was set at 280 ℃; Ion source temperature: 250 ℃; Quadrupole temperature: 150 ℃; EI mode: 70 e V; The mass spectrometer detector was in SIM mode; Scan range: 50-350 amu. All the 7 marker substances showed good linearity(r(2) > 0.998 6) in the test ranges. The LODs and LOQs for the compounds ranged from 1.06 to 10.11 ng·mL(-1) and from 3.21 to 29.88 ng·m L(-1), respectively. The overall intra-day(n = 6) and inter-day(n = 3) RSDs were 0.7%-2.5% and 1.2%-3.3%, respectively. The overall recoveries were between 92.38% and 100.50% for all compounds. This method was simple, rapid, sensitive, with good specificity, and it can provide a reference for the quality control of common cnidium fruit.
- Published
- 2016
31. [Gene Analysis of Thalassemia in Han and Dai Ethnic Childbearing-aged Population of Chinese Yunnan Province].
- Author
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He J, Zeng XH, Xu YM, Pu J, Zhou FZ, Jin CC, Su J, Zhang JM, Chen H, Zhang J, Li SY, Zhang YH, and Zhu BS
- Subjects
- Anemia, Hypochromic ethnology, Anemia, Hypochromic genetics, Asian People, China, DNA Mutational Analysis, Ethnicity genetics, Genetic Testing, Heterozygote, Humans, Mutation, Polymerase Chain Reaction, Alpha-Globulins genetics, alpha-Thalassemia ethnology, alpha-Thalassemia genetics, beta-Globins genetics, beta-Thalassemia ethnology, beta-Thalassemia genetics
- Abstract
Objective: To investigate the common mutation spectrum of α- and β-thalassemia in Yunnan childbearing-aged population., Methods: The common mutation types of α- or β-globin genes were detected by multiple Gap-PCR and the PCR-reversed dot blotting, and the unknown mutation types were determined by DNA sequencing in DNA samples of hypochromic microcytic anemia patients and carriers who were confirmed to be positive by serologic screaning, then the mutation types of globin in Yunnan population were analyzed statistically., Results: A total of 40 kinds of mutation types were detected in 685 detected persons, among them the 3 commonest mutation types of α-globin genes were --(SEA)/αα (49.09%), -α(3.7)/αα (36.67%) and α(CS)α/αα (8.79%), the 3 commonest genetypes of β-globin gene were CD26(GAG>AAG)/N (43.78%), CD41-42(-CTTT)/N (20.1%) and CD17(AAG>TAG)/N (18.9%). There were 348 Han and 212 Dai ethnic persons in 685 cases, but their mutation of globin genes were different between these 2 ethnic groups. The results also showed that the gene mutation types were mostly concentrated in Dai ethnic individuals, since 28 of 38 detected α-β-thalassemia cases were Dai ethnic individuals., Conclusion: The mutation spectrums of α- and β-globin genes in Yunnan childbearing-aged population are diverse and different from that in other areas of China.
- Published
- 2016
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32. [Gene Mutation Spectrum of β-Thalassemia in Dai Ethinic Population of Two Border Region in Chinese Yunnan Province].
- Author
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Zhang J, He J, Zeng XH, Su J, Chen H, Xu YM, Pu J, and Zhu BS
- Subjects
- Antigens, CD genetics, Asian People, China, DNA Mutational Analysis, Electrophoresis, Capillary, Ethnicity, Genetic Therapy, Humans, Mutation, Nucleic Acid Hybridization, Polymerase Chain Reaction, beta-Globins genetics, beta-Thalassemia ethnology, beta-Thalassemia genetics
- Abstract
Objective: To investigate the gene mutation spectrum of β-thalassemia in Dai ethnic population of 2 border region in Chinese Yunnan Province., Methods: The patients with β-thalassemia in Dai ethnic population of Dehong and Xishuangbanna autonamic prefecture were screened by using blood routine detection and capillary electrophoresis. The β-globin gene mutation in patients with β-thalassemia were detected by using PCR reverse dot-blot hybridization (PCR-RDB), the constitutive rate of gene mutation in patients with β-thalassemia of Dai ethnic population in two border regions was analyzed and compared., Results: A total of 186 patients with gene mutation of β-thalassemia were confirmed. Among them, 10 gene mutation were found, and the 5 main gene mutations were CD26 (62.56%), CD41-42 (18.97%), CD17 (14.36%), CD71-72 (2.05%) and IVS-II-654 (1.54%). Among Dai ethinic population in Dehong region, 4 gene mutations were found including CD26 (80.31%), CD17 (11.02%), CD41-42 (6.30%) and CD71-72 (2.36%). Among Dai ethinic population in Xishuangbanna region, 6 gene mutations were found, out of them the more common gene mutations were CD41-42 (42.64%), CD26 (29.41%) and CD17 (20.59%)., Conclusion: The gene mutations of β-thalassemia in Dai ethinic population of Yunnan province has been confirmed to be more genetic heterogenicity, the spectrums of β-thalassemia mutations in Dai ethinic population of different regions were significant different.
- Published
- 2016
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33. [Metabolic profiling of the short-term responses of Nicotiana tabacum leaves cultivated under different LED lights].
- Author
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Meng L, Liang M, Wang CD, Liu XB, Song WJ, Shi J, and Xu YM
- Subjects
- Gas Chromatography-Mass Spectrometry, Metabolic Networks and Pathways, Plant Leaves radiation effects, Nicotiana metabolism, Light, Metabolome, Plant Leaves metabolism, Nicotiana radiation effects
- Abstract
The physiologically mature tobacco (Nicotiana tabacum) leaves was exposed to different light-emitting diode (LED) lights, i.e. ultraviolet A (UV-A), blue, green, yellow, red, white, to investigate their short-term response. Results showed that: 1) 68 GC/MS-stable metabolites were detected by non-targeted method. In the PLS-DA score plot, tobacco leaf samples showed clear grouping in each light cultivating condition. 61 metabolites were identified in mass spectra library. Besides, 45 metabolites, mainly including organic acids, carbohydrates, TCA cycle intermediate metabolites and amino acids, showed significant differences among the six light treatments. Hierarchical cluster analysis (HCA) and heat map showed that differential metabolites could be divided into five groups, and there were significant differences among the six treatments, especially under red and blue lights. Except for the metabolites of group B, almost all other metabolites contents in tobacco leaves treated with red light were higher than those under blue light. 2) Contents of solanesol, 3 alkaloids and 5 polyphenols were measured with targeted method. 4 alkaloids, including nicotine detected by non-targeted method, showed similar variation among all treatments, of which red and yellow light increased alkaloid accumulation significantly. The kaempferol-3-O-rutinoside and rutin showed similar variation among the six treatments, with the lowest content under blue light and the highest content under yellow light, nevertheless, 3 other polyphenols were differently affected by light qualities. The aolanesol accumulation was significantly repressed by yellow light, but showed highest content under blue light. In conclusion, light quality affected many metabolic pathways significantly in tobacco, such as fatty acid metabolism, glycometabolism, alkaloid metabolism, amino acid metabolism, tricarboxylic acid cycle and shikimate pathway.
- Published
- 2015
34. [Development of colloidal gold immunochromatography assay strip for schistosomiasis diagnosis in domestic animals].
- Author
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Xu R, Zhao DY, Lu K, Hong Y, Li H, Lin JJ, Liu JM, Xu YM, and Zhu Chuan-gang
- Subjects
- Animals, Animals, Domestic parasitology, Antibodies, Helminth blood, Antibodies, Helminth immunology, Antigens, Helminth immunology, Bacterial Proteins genetics, Bacterial Proteins immunology, Bacterial Proteins metabolism, Buffaloes, Chromatography, Affinity veterinary, Electrophoresis, Polyacrylamide Gel, Gold Colloid chemistry, Helminth Proteins immunology, Host-Parasite Interactions immunology, Mice, Inbred BALB C, Rabbits, Recombinant Proteins immunology, Recombinant Proteins metabolism, Schistosoma japonicum physiology, Schistosomiasis diagnosis, Schistosomiasis veterinary, Sensitivity and Specificity, Sheep, Sheep Diseases diagnosis, Sheep Diseases immunology, Sheep Diseases parasitology, Species Specificity, Chromatography, Affinity methods, Gold Colloid immunology, Reagent Strips, Schistosoma japonicum immunology, Schistosomiasis immunology
- Abstract
Objective: To develop a quick and easy colloidal gold immunochromatography assay (GICA) strip for schistosomiasis diagnosis in domestic animals., Methods: The reconstruction of Streptococcal Protein G (SPG) was designed and its gene was subcloned into plasmid pET-28a(+) to express in Escherichia coli. The recombinant SPG was purified and labeled with colloidal gold. The Schistosoma japonicum soluble egg antigen (SEA) and rSPG were blotted on the nitrocellulose membrane for the test line and control line respectively. The specificity, sensitivity and cross-reaction of the strip method were detected., Results: The rSPG was successfully expressed and purified to label with colloidal gold. The colloidal gold immunochromatography assay strips were assembled and they could detect the sera of S. japonicum infected BALB/c mice, New Zealand white rabbits, buffalo and sheep successfully. Besides, the sensitivity of GICA strip was 100% in the sera of mice and the serum of rabbits with S. japonicum infection. The specificity was 100% in the serum of mice and the sera of rabbits with free of infection. The sensitivity was 100% in the sera of sheep with miracidia of S. japonicum hatching from the stool and the specificity was 88.46% in the sera of sheep without that. The sensitivity was 94.44% in the sera of buffalo with miracidia hatching from the stool and the specificity was 100% in the sera of buffalo without that. The cross-reaction rate was 5.88% in Paramphistomum., Conclusion: The GICA strip can successfully detect a variety of S. japonicum infected domestic animals and may be a useful tool for screening on a large scale in the endemic areas.
- Published
- 2015
35. [Related biomarkers in the diagnosis of prostate cancer].
- Author
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Xu YM and Liu HZ
- Subjects
- Antigens, Neoplasm blood, Antigens, Surface blood, Early Detection of Cancer, GPI-Linked Proteins blood, Glutamate Carboxypeptidase II blood, Humans, Male, Neoplasm Proteins blood, Prostate-Specific Antigen blood, Racemases and Epimerases blood, Sensitivity and Specificity, Vascular Endothelial Growth Factor A blood, Biomarkers, Tumor blood, Prostatic Neoplasms diagnosis
- Abstract
Prostate cancer is one of the most common malignant tumors in the male urinary system as well as the second leading cause of cancer death in men. Prostate specific antigen (PSA) screening is the main method for the early diagnosis of prostate cancer, but has a low specificity for its detection. In recent years, a variety of tumor markers with high sensitivity and specificity have been found. This review focuses on some of the more promising tumor biomarkers such as prostate cancer antigen 3, early prostate cancer antigen, prostate-specific membrane antigen, alpha-methylacyl-CoA racemase, and vascular endothelial growth factor.
- Published
- 2015
36. [Immobilization remediation of Cd and Pb contaminated soil: remediation potential and soil environmental quality].
- Author
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Sun YB, Wang PC, Xu YM, Sun Y, Qin X, Zhao LJ, Wang L, and Liang XF
- Subjects
- Cadmium analysis, Catalase metabolism, Lead analysis, Magnesium Silicates chemistry, Oryza chemistry, Soil Microbiology, Urease metabolism, beta-Fructofuranosidase chemistry, Environmental Restoration and Remediation methods, Metals, Heavy analysis, Soil chemistry, Soil Pollutants analysis
- Abstract
A pot experiment was conducted to investigate the immobilization remediation effects of sepiolite on soils artificially combined contamination by Cd and Pb using a set of various pH and speciation of Cd and Pb in soil, heavy metal concentration in Oryza sativa L., and soil enzyme activity and microbial quantity. Results showed that the addition of sepiolite increased the soil pH, and the exchangeable fraction of heavy metals was converted into Fe-Mn oxide, organic and residual forms, the concentration of exchangeable form of Cd and Pb reduced by 1.4% - 72.9% and 11.8% - 51.4%, respectively, when compared with the control. The contents of heavy metals decreased with increasing sepiolite, with the maximal Cd reduction of 39.8%, 36.4%, 55.2% and 32.4%, respectively, and 22.1%, 54.6%, 43.5% and 17.8% for Pb, respectively, in the stems, leaves, brown rice and husk in contrast to CK. The addition of sepiolite could improve the soil environmental quality, the catalase and urease activities and the amount of bacteria and actinomycete were increased to some extents. Although the fungi number and invertase activity were inhibited compared with the control group, it was not significantly different (P > 0.05). The significant correlation between pH, available heavy metal content, urease and invertase activities and heavy metal concentration in the plants indicated that these parameters could be used to evaluate the effectiveness of stabilization remediation of heavy metal contaminated soil.
- Published
- 2014
37. [Treatment of calcaneal fractures by fixation of Kirschner needle and thread cancellous bone screw through sinus tarsi interstice].
- Author
-
Lin CX, Shi ZY, Xu YM, Yang M, Wang JL, Chen XJ, Zhang W, and Zhi SX
- Subjects
- Adult, Aged, Calcaneus surgery, Female, Humans, Male, Middle Aged, Bone Screws, Bone Wires, Calcaneus injuries, Fracture Fixation, Internal methods
- Abstract
Objective: To explore the effect of fixation of Kirschner needle and thread cancellous bone screw through the sinus tarsi interstice for the treatment of calcaneal fractures., Methods: From January 2009 to December 2012,20 patients with calcaneal fracture were treated by minimally invasive Kirschner wire and threaded cancellous bone screw fixation and bone graft,including 12 males and 8 females with an average age of 39 years old ranging from 21 to 65. Among them, 8 cases were left foot, 12 were right foot. According to Sanders's classification, 8 cases were type II, 10 cases were type III, 2 cases were type IV., Results: All patients were followed up from 6 to 16 months with an average of 12 months. The incision were healed. Böhler angle were increased from preoperative (17.75 +/- 4.22) degrees to postoperative (26.85 +/- 7.37) degrees (t = 4.308, P = 0.000). Gissane angle were reduced from preoperative (137.05 +/- 24.91) degrees to postoperative (113.75 +/- 13.17) degrees (t = 7.083, P = 0.000). At 3 months after operation, the scores of AOFAS were 85.50 +/- 7.99; the results were excellent in 5 feet and good in 11 feet, fair in 3 feet, and poor in 1 foot., Conclusion: Minimally invasive fixation of Kirschner needle and thread cancellous bone screw fixation is a simple operation, it can get reliable fixation, easy to remove, low cost, less postoperative complications, and it is a good treatment of calcaneal fracture.
- Published
- 2014
38. [Effect of compound qingqin liquid on the expression levels of ang II and COX-2 mRNA transcription and protein expression in the renal tissue of uric acid nephropathy rats: an experimental study].
- Author
-
Shang XZ, Ma WG, Chen Y, Lu Y, Wang YN, Xu YM, Tan L, Gu W, Lin ZC, and Meng FX
- Subjects
- Animals, Cyclooxygenase 2 genetics, Disease Models, Animal, Kidney metabolism, Kidney Diseases drug therapy, Male, RNA, Messenger genetics, Random Allocation, Rats, Rats, Sprague-Dawley, Uric Acid, Angiotensin II metabolism, Cyclooxygenase 2 metabolism, Drugs, Chinese Herbal pharmacology, Kidney Diseases metabolism
- Abstract
Objective: To investigate the effect of Compound Qingqin Liquid (CQL) on the expression level of angiotensin II (Ang II) and COX-2 mRNA transcription and protein expression in the renal tissue of rats with uric acid nephropathy., Methods: SD rats were randomly divided into the blank control group, the model group, the positive drug group, the high, moderate, and low dose CQL group according to number randomization principle. The model was established by gastrogavage of adenine, accompanied with yeast feeding. Distilled water was given by gastrogavage to rats in the blank control group and the model group. Allopurinol at the daily dose of 9.33 mg/kg was given by gastrogavage to rats of the positive control group. CQL at the daily dose of 3.77 g/kg, 1.89 g/kg, and 0.09 g/kg was respectively given by gastrogavage to rats in the high, moderate, and low dose CQL groups. All treatment lasted for 6 weeks. Rats were randomly divided at week 4 (3 in the blank control group, and 6 in the rest groups), and the rest rats were killed at week 6. The renal tissue was extracted. The expression level of Ang II and COX-2 mRNA transcription were detected by RT-PCR. The expression level of Ang II was detected by ELISA. The expression level of COX-2 protein was detected by Western blot and immunohistochemical assay., Results: Compared with the blank control group, except the mRNA expression of Ang II at week 4, the mRNA and protein expression of Ang II and COX-2 obviously increased at week 4 and 6 in the model group (P < 0.01, P < 0.05). The COX-2 protein expression at week 4 was obviously lower in the high and moderate dose CQL groups than in the model group and the low dose CQL group (P < 0.05); the average integral of optical density value was obviously lower in the positive control group than in the model group. Except the mRNA expression of Ang II in the high dose CQL group at week 6, the mRNA and protein expression of Ang II obviously decreased in the positive control group and each dose CQL group (P < 0.01, P < 0.05). Of them, the effects were better in the high and moderate dose CQL groups than in the positive control group and the low dose CQL group (P < 0.05, P < 0.01). Besides, the mRNA expression of COX-2, the average integral of optical density value were obviously lower in the positive control group and each dose CQL group than in the model group (P < 0.05). The protein expression of COX-2 was obviously lower in the high and moderate dose CQL groups than in the model group (P < 0.05). Of them, the mRNA expression of COX-2 was better in the moderate dose CQL group than in the positive control group (P < 0.05); the protein expression of COX-2 was better in the high dose CQL group than in the low dose CQL group (P < 0.05)., Conclusion: CQL was capable of lowering the expression level of Ang II, COX-2 mRNA transcription and protein expression, thus suppressing the inflammatory pathological injury of the renal tissue.
- Published
- 2014
39. [Regulative effect of bakuchiol on ESF-1 cells anti-aging gene].
- Author
-
Yu Q, Zou HM, Wang S, Xu YM, Li JM, and Zhang N
- Subjects
- Cell Proliferation drug effects, Cells, Cultured, Collagen genetics, Collagen Type I genetics, Collagen Type I metabolism, Collagen Type III genetics, Collagen Type III metabolism, Estradiol pharmacology, Fibroblasts cytology, Fibroblasts metabolism, Gene Expression Regulation drug effects, Humans, Matrix Metalloproteinase 1 genetics, Matrix Metalloproteinase 1 metabolism, Phenols administration & dosage, Psoralea chemistry, RNA, Messenger genetics, RNA, Messenger metabolism, Reverse Transcriptase Polymerase Chain Reaction, Skin Aging drug effects, Tissue Inhibitor of Metalloproteinase-1 genetics, Tissue Inhibitor of Metalloproteinase-1 metabolism, Tissue Inhibitor of Metalloproteinase-2 genetics, Tissue Inhibitor of Metalloproteinase-2 metabolism, Tissue Inhibitor of Metalloproteinases genetics, Collagen metabolism, Fibroblasts drug effects, Phenols pharmacology, Skin cytology, Tissue Inhibitor of Metalloproteinases metabolism
- Abstract
Objective: To explore the mechanism of bakuchiol on anti-aging gene mRNA expression level of human skin fibroblasts (ESF-1)., Methods: The potential of cell proliferation which was divided into blank group,positive control estradiol group, and bakuchiol high, medium and low dose groups was detected by MTT. The expression levels of Col I, Col III, TIMP-1, TIMP-2 and MMP-1 mRNA were detected with RT-PCR., Results: ESF-1 vitality and the expression levels of Col I, Col III, TIMP-1 and TIMP-2 mRNA were significantly increased by bakuchiol and E2. However, the expression of MMP-1 mRNA was reduced by bakuchiol and E2., Conclusion: The bakuchiol can enhance ESF-1 cell activity, promote collagen and matrix metalloproteinase inhibitors mRNA expression level and inhibit mRNA expression of matrix metalloproteinases in order to postpone skin aging.
- Published
- 2014
40. [Validation of ABCD3 score in the predication of stroke risk after transient ischemic attack].
- Author
-
Wang YY, Song B, Fang H, Zhao L, Tan S, Gao Y, Xu YF, Xu YM, and Sun SL
- Subjects
- Aged, Aged, 80 and over, Female, Humans, Logistic Models, Male, Middle Aged, Multivariate Analysis, Predictive Value of Tests, Risk Assessment, Risk Factors, Severity of Illness Index, Ischemic Attack, Transient complications, Ischemic Attack, Transient epidemiology, Stroke epidemiology
- Abstract
Unlabelled: Objective To explore the evaluation of ABCD(3) score in the prediction of stroke risk after transient ischemic attack and the influencing factors of early stroke risks., Methods: From October 2010 to September 2012, the data were prospectively collected from patients with transient ischemic attack according to the World Health Organization time-based criteria. ABCD(2) and ABCD(3) scores were available within 7 days of index transient ischemic attack. The predictive outcome was stroke occurrence at 90 days. Risks of stroke stratified according to the score were analysed by Logistic regression. And ABCD(2) and ABCD(3) model were compared by AUROCC., Results: Among 321 eligible patients, 4 cases were lost to follow-up. There were 38(11.8%) patients with ischemic stroke during a 90-day follow-up, including 22(57.9%) males, 16(42.1%) females. There were no occurrence of death, no hemorrhagic stroke. Multivariate analysis revealed that dual TIA (OR = 4.116, 95%CI 1.284-3.195) , history of stroke (OR = 4.022, 95%CI 1.472-10.944) and unilateral weakness (OR = 3.117, 95%CI 1.222-7.948) were the risk factors of early stroke. The ABCD(3) score (0.733, 95% CI,0.0.681-0.780) was statistically higher than that of ABCD(2) score (0.674, 95%CI, 0.619-0.725) (P < 0.05)., Conclusion: ABCD(3) may effectively predict early risk of stroke after TIA.
- Published
- 2013
41. [Investigation of dental manpower in non-public dental institutions in Liaoning province].
- Author
-
Liu L, Zhang Y, Cheng RB, Xu YM, and Lu ZF
- Subjects
- Adult, China, Humans, Middle Aged, Prosthodontics, Schools, Surveys and Questionnaires, Dentists, Health Workforce, Oral Health
- Abstract
Purpose: To investigate the non-public oral medical institutions in Liaoning province in 2011, and to analyze the status of dental manpower in non-public dental institutions in Liaoning province., Methods: A mass survey on dental manpower was made in non-public dental institutions in Liaoning province in 2011 by means of questionnaire investigation, which included the institution type, dental devices, and the number, structure, composition, distribution of dental manpower in non-public dental institutions in Liaoning province. Data was entered with EpiData 3.0 and analyzed with SPSS 13.0 software package., Results: There were 1649 non-public dental institutions with 3132 dentists, 1265 nurses, 540 technicians and 3490 dental chairs in Liaoning province. 85.69% of the dental manpower were young and middle-aged. 33.17% of the dentists had primary professional titles, 42.53% of them had college degree and 87.96% of the dentists was general dentistry. In the dental auxiliaries, the primary professional title accounted for the majority. 95.97% of the nurses majored in general dentistry and 60.40% of the nurses' educational background were below junior college degree. 72.59% of the technicians majored in prosthetic dentistry and 67.78% of their educational background were below junior college degree. The ratio of the dentists to nurses to technicians was 6:2:1. The ratio of the nurses to dental chairs was 1:2.76., Conclusions: The distribution and composition of dental manpower are not reasonable in non-public dental institutions in Liaoning province. We should strengthen effective utilization of oral health resources and the oral health service ability of non -public dental institutions in Liaoning province. Supported by Key Science and Technology Projects of Liaoning Province (2012225015).
- Published
- 2013
42. [Hereditary motor neuropathy - a family with 9 cases].
- Author
-
Chen J, An R, and Xu YM
- Subjects
- Adult, Aged, Female, Hereditary Sensory and Motor Neuropathy genetics, Humans, Male, Middle Aged, Pedigree, Hereditary Sensory and Motor Neuropathy diagnosis
- Published
- 2013
- Full Text
- View/download PDF
43. [Adsorption of Cd2+ on biochar from aqueous solution].
- Author
-
Guo WJ, Liang XF, Lin DS, Xu YM, Wang L, Sun YB, and Qin X
- Subjects
- Adsorption, Kinetics, Temperature, Cadmium chemistry, Charcoal chemistry
- Abstract
Biomass-based materials such as biochar have a good performance in heavy metal adsorption. The adsorption of Cd2+ on biochar converted from cotton straw was studied. Adsorption isotherm, kinetics and effect factors such as temperature, pH and ionic strength were investigated. The adsorption of Cd2+ on biochar can be fitted by the Freundlich isotherm better than the Langmuir isotherm. The maximum adsorption amounts of Cd2+ at different temperatures were 9.738 mg x g(-1) (288.15 K), 10.14 mg x g(-1) (298.15 K), 10.40 mg x g(-1) (308.15 K) and 10.71 mg x g(-1) (318.15 K), respectively. The free energies AG(theta) were from -8.346 kJ x mol(-1) to -10.276 kJ x mol(-1) at different temperatures, indicating that the adsorption of Cd2+ onto biochar is spontaneous and is an endothermic process. The adsorption process can reach equilibrium within 40 minutes and can be fitted by the pseudo second order kinetic model. pH showed a significant effect on the adsorption of Cd2+ on biochar in the range of 2-8. The adsorption amount of Cd2+ on biochar shows a reducing trend with the increasing ionic strength.
- Published
- 2013
44. [Benign positional paroxysmal vertigo: report of a family with 5 cases].
- Author
-
Weng HY, Yu LH, and Xu YM
- Subjects
- Aged, Aged, 80 and over, Benign Paroxysmal Positional Vertigo, Female, Humans, Male, Middle Aged, Pedigree, Vertigo diagnosis, Vertigo genetics
- Published
- 2013
- Full Text
- View/download PDF
45. [Association between SNP rs12740374 and acute ischemic stroke in Chinese Han population].
- Author
-
Zhang JJ, Yu LH, Yin YY, Lu Q, Lei L, Xiao J, Guo J, Zhao JJ, Wang YN, He GQ, Xu YM, and He L
- Subjects
- Aged, Case-Control Studies, China ethnology, Female, Genetic Association Studies, Genotype, Humans, Male, Middle Aged, Brain Ischemia genetics, Cholesterol, LDL blood, Polymorphism, Single Nucleotide, Stroke genetics
- Abstract
Objective: To investigate the association between single nucleotide polymorphism (SNP) rs12740374 and acute ischemic stroke in Chinese Han population., Methods: All subjects (778 ischemic stroke patients and 602 controls) were genotyped using ligation detection reaction (LDR). We analyzed the differences among all genotypes in two groups, as well as the association between rs12740374 and low-density lipoprotein cholesterol (LDL-C)., Results: All three genotypes (GG, GT, TT) of rs12740374 were found in both stroke and control group. After adjusting for risk factors, although there was a trend that participants with a minor allele T of rs12740374 (GT/TT) had lower LDL-C concentration, no significant association was found between rs12740374 and ischemic stroke, and also no significant association between different genotypes and LDL-C was found., Conclusion: SNPs of rs12740374 was not significantly associated with ischemic stroke in the Chinese Han population.
- Published
- 2013
46. [Effects of land use change on soil readily oxidizable carbon in a coastal area of northern Jiangsu Province, East China].
- Author
-
Wang GB, Zhao XL, Wang MH, Ruan HH, Xu CB, and Xu YM
- Subjects
- China, Oceans and Seas, Organic Chemicals analysis, Poaceae growth & development, Carbon analysis, Crops, Agricultural growth & development, Ecosystem, Soil chemistry, Trees growth & development
- Abstract
Soil readily oxidizable carbon (ROC) is a sensitive index to indicate the early changes of soil organic carbon (SOC), and has important value to research the stability and dynamics of SOC pool under the backgrounds of human disturbance and global climate change. To further understand the effects of land use change on soil ROC, an investigation was conducted on the soil ROC content and related factors in four different land use types (grassland, farmland, poplar-agriculture system and pure poplar plantation) in a coastal area of northern Jiangsu Province, East China. The soil ROC content was in the order of grassland < farmland
- Published
- 2013
47. [Congenital paramyotonia: a family with ten affected members].
- Author
-
Zhou HY and Xu YM
- Subjects
- Adolescent, Adult, Child, Female, Humans, Male, Pedigree, Young Adult, Myotonic Disorders diagnosis
- Published
- 2012
- Full Text
- View/download PDF
48. [Levels of cytokines and heat-shock protein 70 in the seminal plasma of patients with chronic bacterial prostatitis and chronic prostatitis/chronic pelvic pain syndrome].
- Author
-
Guo H, Xu YM, Ye ZQ, and Yu JH
- Subjects
- Adolescent, Adult, Biomarkers metabolism, Case-Control Studies, Humans, Male, Middle Aged, Pelvic Pain metabolism, Young Adult, Cytokines metabolism, HSP70 Heat-Shock Proteins metabolism, Prostatitis metabolism, Semen metabolism
- Abstract
Objective: To assess the diagnostic value and potentially protective capacity of tumor necrosis factor-alpha (TNF-alpha), interleukin 1beta (IL-1beta) and heat-shock protein 70 (HSP70) in chronic bacterial prostatitis (CBP) and chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS)., Methods: We determined the levels of cytokines TNF-alpha, IL-1beta and HSP70 by ELISA in the seminal plasma of 150 men: 36 with CBP, 43 with CP/CPPS IIIA, 46 with CP/CPPS IIIB, and 25 healthy controls. We analyzed the correlation of the HSP70 expression in the CBP and CP/CPPS patients with the chronic prostatitis symptom index (CPSI)., Results: Significantly increased levels of TNF-alpha, IL-1beta and HSP70 were observed in the seminal plasma of the CBP patients as compared with the CP/CPPS patients and healthy controls. The expression of IL-1beta was significantly higher in the patients with CP/CPPS IIIA than in those with CP/CPPS III B and the controls, while the HSP70 level remarkably lower in those with CP/CPPS than in the controls, and its concentration in the seminal plasma of the CBP patients was negatively correlated with CPSI., Conclusion: The levels of HSP70 and IL-1beta in the seminal plasma appear to be most reliable molecular biological markers for the diagnosis of CBP and CP/CPPS, respectively. HSP7O has an important protective role in the regulation of cell functions in CBP patients. CP/CPPS is probably detrimental to the function of T cells and consequently suppresses the expression of HSP70.
- Published
- 2012
49. [Short-and mid-term outcomes of transcatheter intervention for critical pulmonary stenosis and pulmonary atresia with intact ventricular septum in neonates].
- Author
-
Li H, Li YF, Li JJ, Shi JJ, Zhang ZW, Xu YM, Zhang X, Liang DP, and Jiang QP
- Subjects
- Catheterization instrumentation, Female, Follow-Up Studies, Humans, Infant, Newborn, Male, Reoperation, Retrospective Studies, Treatment Outcome, Catheterization methods, Heart Defects, Congenital surgery, Pulmonary Atresia surgery, Pulmonary Valve surgery, Pulmonary Valve Stenosis surgery
- Abstract
Objective: To assess the safety and efficacy of transcatheter intervention for critical pulmonary stenosis (CPS) and pulmonary atresia with intact ventricular septum (PA/IVS) in neonates., Method: From June 2006 to September 2011, 27 neonates including CPS in 19 patients and PA/IVS in 8 patients underwent transcatheter intervention. All patients had membranous stenosis or atresia without severe Ebstein's anomaly and severe right ventricle and pulmonary valve hypoplasia, without right ventricle-dependent coronary circulation in PA/IVS. The mean age was (16.8 ± 9.9) d. The mean weight was (3.3 ± 0.5) kg. Two of them were premature neonates, the weight was 2.3 kg and 2.5 kg, respectively. The procedural success, early outcome, complication rates, midterm results and pulmonary regurgitation were retrospectively studied., Result: Twenty-six patients were successfully treated with transcatheter intervention. Right ventricular pressure fell from (112.0 ± 21.0) mm Hg (1 mm Hg = 0.133 kPa) to (50.4 ± 15.9) mm Hg (P < 0.001). The ratio of right ventricular pressure and aortic pressure fell from 1.7 ± 0.1 to 0.7 ± 0.3 (P < 0.001). One patient died early of PA/IVS. Complication occurred in 5 patients. Hemopericardium occurred in 3 patients, tachyarrhythmia in 2 patients. Five patients needed prolonged prostaglandin E(1) infusion for 3 to 14 days because of desaturation after the procedure. No patient needed surgery in neonatal period. At a mean follow-up of (33.5 ± 18.3) months (from 6 months to 5 years), 21 patients had no further transcatheter or surgical intervention. Four patients with CPS had moderate to severe residual pulmonary stenosis after the procedure, 3 of them underwent a second balloon dilation at 3 months of follow-up, the other one was waiting for the second balloon dilation. One patient with PA/IVS was waiting for a bidirectional Glenn procedure because of chronic right ventricular failure. Mild pulmonary regurgitation occurred in 18 patients (69.2%), and moderate pulmonary regurgitation in 8 patients (30.8%)., Conclusion: Transcatheter intervention for CPS and PA/IVS in neonates is safe and effective. It can avoid neonatal surgery. Some patients may require repeat balloon valvuloplasty in infant period. In most patients surgical or transcatheter intervention could be avoided and mild pulmonary regurgitation was the common finding in midterm follow-up.
- Published
- 2012
50. [Change in gastrocnemius dystrophin and metabolic enzymes and increase in high-speed exhaustive time induced by hypoxic training in rats].
- Author
-
Xu YM, Li JP, and Wang RY
- Subjects
- Altitude, Animals, Fatigue, L-Lactate Dehydrogenase metabolism, Malate Dehydrogenase metabolism, Rats, Rats, Sprague-Dawley, Succinate Dehydrogenase metabolism, Dystrophin metabolism, Hypoxia, Muscle, Skeletal enzymology, Physical Conditioning, Animal
- Abstract
The aim of the present study was to explore the changes and roles of dystrophin and membrane permeability in hypoxic training. Seventy-two 8-week-old Sprague Dawley (SD) rats were randomly divided into 4 groups, normoxic non-train (NC), normoxic train (NT), hypoxic non-train (HC), and hypoxic train (HT) groups. The rats of each group were randomly divided into three subgroups, non-exhaustive, low-speed exhaustive test and high-speed exhaustive test subgroups. Rats in hypoxia groups lived and were trained in a condition of 12.7% oxygen concentration (equal to the 4 300 m altitude). NT and HT groups received 4 weeks of training exercise. Then the rats in all non-exhaustive subgroups were sacrificed, and gastrocnemii were sampled for the measurements of lactate dehydrogenase (LDH), succinatedehydrogenase (SDH), malate dehydrogenase (MDH) activities. Moreover, serum LDH activity was analyzed. Low-speed exhaustive test and high-speed exhaustive test subgroups received exhaustive tests with 20 (71% VO2max) and 30 m/min speed (86% VO2max), respectively, and their exhaustive times were recorded. The results showed that, compared with normoxic groups, the weights in hypoxia groups exhibited slower increase. The level of dystrophin in HT group without exhaustion test didn't change significantly. The muscle MDH activities were markedly affected by the different oxygen concentration, training and their interaction (P < 0.05), whereas the muscle LDH activities were only affected by the different oxygen concentration (P < 0.05). Serum LDH activities were affected by the interaction of the different oxygen concentration and training (P < 0.05), showing decreased muscle LDH and increased blood LDH activities. The exhaustion time were markedly affected by the different test speed, training and their interaction (P < 0.05), and also affected by the interaction of the different oxygen concentration and training (P < 0.05), but didn't affected by oxygen concentration. The exhaustive time of HT high-speed exhaustive test subgroup was more than NT high-speed exhaustive test subgroup in 30 m/min exhaustion test. Compared with NT high-speed exhaustive test subgroup, HT high-speed exhaustive test subgroup had an earlier fatigue in the test, but had a rapid recovery. These results suggested that hypoxic training can effectively increase the rats' high-speed exhaustive time. The mechanism may be related to an increase in serum LDH caused by the increased membrane permeability after hypoxic training.
- Published
- 2012
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