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1.
《Annals of human biology》2013,40(3):190-194
Background: Otosclerosis is a common form of hearing impairment among Western-Eurasian adults. The cause of otosclerosis remains unknown. Autoimmune reaction against the otic capsule has been suggested as a possible aetiologic factor in otosclerosis.

Aim: The present study is the first report to evaluate the relationship between class I major histocompatibility complex (MHC) genes (HLA-A, HLA-B and HLA-Cw) and genetic susceptibility to otosclerosis in Tunisian patients.

Subjects and methods: Fifty unrelated Tunisian patients exhibiting clinical otosclerosis were typed for HLA-A, HLA-B and HLA-Cw antigens and compared with 100 ethnically-matched healthy controls.

Results: Increased frequencies of HLA-A*03 (OR = 4.16, Pc < 0.043), HLA-B*35 (OR = 2.76, Pc < 0.043) and HLA-Cw*03 (OR = 4.57, Pc < 0.043) antigens were found in the patients with otosclerosis compared with healthy controls. Individuals with HLA-A*30 (OR = 0.25, Pc < 0.043), HLA-B*51 (OR = 0.11, Pc < 0.043), HLA-Cw*16 (OR = 0.08, Pc < 0.043) and Cw*06 (OR = 0.32, Pc < 0.043) antigens have a protective effect against otosclerosis.

Conclusions: In conclusion, the data suggest that a variation in class I HLA antigens could be a genetic factor involved in susceptibility to otosclerosis in the Tunisian population.  相似文献   

2.
Class I human leucocyte antigen (HLA)-B51 is well known to be associated with Behcet's disease in many ethnic groups. However, there has been no published paper with respect to its association with HLA class I and class II among the Turkish people who live in the eastern region of Turkey. Moreover, as it is known that B51 antigen is encoded by 21 alleles, B*5101-5121, HLA-B51 allele typing was performed, as well as HLA class I and class II genotyping of 75 patients with the disease and the 54 individuals in the matched control group. The result shows that the HLA-B51 frequency was significantly higher (58.66%) in the patient group, compared to that in the control group (18.51%) (OR = 6.245). In the subtyping of B51 alleles, 44 B51-positive patients possessed B*5101 (45.5%), B*5108 (25%), B*5105 (9.1%) and B*5104 (4.5%). There was no significant difference in the HLA-B51 allelic distribution between the patient group and the control group. However, homozygous carriers of HLA-B51 showed considerably high risk (OR = 2.647) in the patient group, compared to that in the control group. In the genotyping of class II HLA alleles, while HLA-DRB1*04 (45.3%) and HLA-DRB1*07 (24%) were the predominant alleles in the patient group, DRB1*11 (50%) appeared to be more common in the control group.  相似文献   

3.
Summary The fluorescent probe Quin-2 showed the cytosolic free-calcium concentration in platelets to be elevated in 12 hypertensive hemodialysis patients, who were compared with 12 normotensive hemodialysis patients. There was a close correlation between the free-calcium level of platelets and mean arterial pressure (r=0.88). Short-term antihypertensive treatment resulted in a reduction of free-calcium concentration and a concomitant fall in blood pressure. These results suggest an integrative contributory role for calcium in the pathophysiology of hypertension accompanying endstage renal disease.  相似文献   

4.
Circulating microRNAs (miRNAs) may represent a potential noninvasive molecular biomarker for various pathological conditions. Moreover, the detection of circulating miRNAs can provide important novel disease-related information. In particular, inflammation-associated miR-155 and endothelial-enriched miR-126 are reported to be associated with vascular homeostasis. Vascular damage is a common event described in end-stage renal disease (ESRD). We hypothesized that miR-155 and miR-126 may be detectable in the circulation and serve as potential biomarkers for risk stratification. In this study, we assessed miR-155 and miR-126 in the plasma of 30 ESRD patients and 20 healthy controls using real-time quantification RT-PCR. The circulating levels of miR-155 and miR-126 were significantly reduced in patients with ESRD compared to healthy controls. However, there was no significant difference of circulating miR-155 and miR-126 levels between prehemodialysis and posthemodialysis patients. Furthermore, both circulating miR-126 and miR-155 correlated positively with estimated glomerular filtration rate (miR-126: r = 0.383, P = 0.037; miR-155: r = 0.494, P = 0.006) and hemoglobin (miR-126: r = 0.515, P = 0.004; miR-155: r = 0.598, P < 0.001) and correlated inversely with phosphate level (miR-126: r = -0.675, P < 0.001; miR-155: r = -0.399, P = 0.029). Pearson''s correlation was used to compare circulating levels of miRNAs with clinical parameters. These results suggested that circulating miR-155 and miR-126 might be involved in the development of ESRD. Further studies are needed to demonstrate the role of circulating miR-155 and miR-126 as candidate biomarkers for risk estimation.  相似文献   

5.
End-stage renal disease (ESRD) patients are vulnerable to Mycobacterium tuberculosis (MTB) infection, but the magnitude of the risk is uncertain. In addition, there is no reliable information on the MTB infection rate of patients undergoing different types of renal replacement therapy (RRT). We used the Taiwan National Health Insurance Research Database to conduct a 9-year nationwide longitudinal study. Among 49 983 ESRD patients who received three renal replacement modalities, there were 562 cases of MTB infection, corresponding to an incidence rate of 3.0 per 1000 patient-years. The risk of MTB infection relative to the general population was 4.5. Multivariate Cox regression analysis indicated that the independent risk factors for MTB infection in ESRD patients are old age (hazard ratio (HR) 1.17 per 10 years, p <0.001), male gender (HR 1.37, p <0.001), silicosis (HR 5.82, p <0.001), and chronic obstructive pulmonary disease (HR 1.68, p 0.012). Hyperlipidaemia (HR 0.71, p <0.001) and hypertension (HR 0.81, p 0.05) are associated with a lower infection rate. There was no effect of RRT modality on MTB infection rate.  相似文献   

6.
Parameters of cell-mediated immune function were determined in 76 patients with end-stage renal disease. Lymphocyte subpopulations (OKT3, OKT4, OKT8, OKIal, OKM1, OKT9, OKT10), natural killer (NK)-cell activity (percentage51Cr release from K562 targets), and delayed cutaneous hypersensitivity were measured and correlated with other variables. The results indicate that (1) uremic patients have a significant diminution in the OKT4-lymphocyte subpopulation and OKT4/OKT8 (helper/suppressor) ratio compared to normal controls; (2 blood transfusions do not induce significant alterations in the helper/suppressor-cell ratio; (3) uremic patients have a significant increase in OKM1 cells compared to normal controls; (4) the majority of uremic patients in this series developed delayed cutaneous hypersensitivity responses to recall antigens and could be de novo sensitized to 2,4-dinitrochlorobenzene (DNCB); (5) skin-test reactivity could not be correlated with total circulating T cells or levels of any lymphocyte subpopulations; and (6) NK-cell activity in uremic patients is not significantly different from that in normal controls. These results highlight the varying levels and function of different lymphocyte subsets in patients with end-stage renal disease when they are treated with chronic maintenance hemodialysis.  相似文献   

7.
The Human Leukocyte Allele (HLA) Class I (A, B, C) and Acute Lymphoid Leukemia and Myeloid Leukemia association, was determined by polymerase chain reaction--sequence specific primers (PCR-SSP) in 60 patients and 30 healthy controls. The results were reported as allelic frequencies and haplotype. The Chi-square corrected, Fisher's Test, Relative risk and etiologic fraction were calculated. A significant positive association was showed between HLA-B*39 (RR = 16.184; p = 0.0237) and HLA C*03 (RR = 5.0; p = 0.0127) alleles and Mycloid Leukaemia. Positive associations between haplotypes 2 loci: HLA-A*02-C*03 (RR = 6.0; p = 0.0153), A*24-C*03 (RR = 16.184; p = 0.0237), B*40-C*03 (RR = 10.706; p = 0.0021) and haplotype 3 loci: HLA-A*02-B*40-C*03 (RR = 8.11; p = 0.0102) and Myeloid Leukemia were found. No association was evident in Acute Lymphoid Leukemia. No negative association with Leukemias were observed.  相似文献   

8.

Objective

To suggest a behavioural research agenda for patients with end-stage renal disease (ESRD) based on a concise review of seven stages of psychosocial research, a literature review, and current behavioural research in other chronic somatic diseases.

Methods

Historical behavioural ESRD research was classified. The specialized register of the Cochrane Behavioral Medicine Field was also checked, and additional papers were selected by screening reference lists and related behavioural science journals, to identify promising areas for future research.

Results

The top-five topics identified via the literature search pertain to (1) psychological aspects and interventions, (2) adaptation, coping, and depression, (3) exercise, (4) counseling and education, and (5) compliance. ‘Illness and treatment beliefs’, ‘sexuality’, ‘suicide’, ‘family support’, and ‘self-management interventions’, were identified on the basis of research in other chronic illnesses as topics for future research. Regarding theory, the Common-Sense Model (CSM) was judged to offer useful theoretical perspectives; regarding methods, qualitative methods can be a valuable addition to quantitative research methods.

Conclusion

Illness beliefs, treatment beliefs, and self-management behaviours are promising concepts in the assessment and clinical care of ESRD-patients. Cognitive-behavioural treatments appear to have potential and should be specified and elaborated for specific categories and problems of ESRD-patients.

Practice Implications

This research agenda is in line with moves towards patient-centred disease-management to improve the quality of medical care for ESRD-patients.  相似文献   

9.
Hypertension and accelerated vascular damage in hemodialysis patients have been ascribed to the accumulation of sodium and water before hemodialysis and their rapid extraction during the successive 4-h hemodialysis. We hypothesized that oral administration of water-adsorbing polymers might increase stool sodium and water contents and prevent overhydration. We tested the solute adsorption capacities of the water-adsorbing polymers Akuarikku CA K-4, K-25, H-2, H-3, CS-7M, and SCN-50 in artificial gastric juice. The adsorbing capacity in the artificial gastric juice was less than one-twentieth of that in water for all of the polymers except CS-7M. CS-7M also maintained its adsorbing capacity after 5h. We administered 0.2g of Akuarikku CS-7M suspended in 2ml polyethylene glycol by a metal gastric tube to 300-g Sprague-Dawley rats. The fecal weights after 5 days of administration were 9.2±0.6 g/day in the polymer group (n=5) and 7.3±0.6 g/day in control group (n=5) (P<0.01). Their dry weights were 4.2±0.2g and 3.2±0.3g/day (P<0.01), respectively. Fecal nitrogen and sodium contents were higher in the polymer group than those in the control group (P<0.01). There were no differences in potassium and phosphate contents. Oral administration of the water adsorbent to rats increased the water and nitrogen contents of feces. These observations might suggest the potential efficacy of water adsorbent as an additive for treatment of patients with severe overhydration.  相似文献   

10.
《Human immunology》2015,76(11):843-848
Background/objectivesReceptor for advanced glycation end products (RAGE) contributes to the pathogenesis of vascular and inflammatory diseases. We investigated whether the functional polymorphism in the promoter region of the RAGE gene (−374 T/A) influences development of cardiovascular disease in the end-stage renal disease (ESRD) patients.MethodsThe cohorts of 1866 ESRD patients and 1143 healthy subjects were genotyped by polymerase chain reaction (PCR) for the RAGE variant rs1800624.ResultsThe genotype and allele frequencies did not differ significantly between ESRD patients and controls. There was no significant difference in the genotype distribution when patients with CVD were compared to those without it (p for A allele = 0.62). After stratifying CVD patients according to CVD clinical phenotype, the ESRD patients with stroke had a lower frequency of A allele than patients without CVD (0.12 vs. 0.21, p = 0.027). To confirm this finding, we genotyped 163 patients with ischemic stroke but without renal disease. In this group, the AA/TA genotypes were also significantly associated with lower risk of stroke (OR 0.46, p = 0.0002).ConclusionOur data suggest that the presence of the A allele of −374 T/A polymorphism in the RAGE gene has a protective effect against stroke.  相似文献   

11.
12.
IntroductionThe survival outcome of lung cancer patients with end-stage renal disease has been poorly studied in the literature. In this study, we evaluated the effect of end-stage renal disease on lung cancer survival.Material and methodsA retrospective, multicenter, matched-cohort study of lung cancer patients with end-stage renal disease under renal replacement therapy (WITH-ESRD) and without end-stage renal disease (WITHOUT-ESRD) was performed. One WITH-ESRD patient was matched to four WITHOUT-ESRD patients.ResultsBaseline clinical characteristics did not differ statistically significantly after matching between the WITH-ESRD and WITHOUT-ESRD groups. WITH-ESRD included 133 patients and WITHOUT-ESRD included 532 patients. Kaplan-Meier survival analysis demonstrated no significant difference in median overall survival between WITH-ESRD patients and WITHOUT-ESRD patients (7.36 months versus 12.25 months, respectively, p = 0.133). Lung cancer WITH-ESRD patients receiving medical treatment had a median overall survival of 5.98 months (95% CI: 4.34–11.76) compared to 14.13 months (95% CI: 11.30–16.43) for WITHOUT-ESRD patients, p = 0.019. Although patients receiving surgical treatment compared to those receiving medical treatment had an improvement of survival by 46% (HR = 0.54, 95% CI: 0.19–1.53, p = 0.243), the difference did not reach statistical significance. Cox regression analysis revealed that male gender and stage IIIA-IV were independent factors associated with poor outcome for WITH-ESRD patients.ConclusionsIn our limited experience, the survival for lung cancer with ESRD is not inferior to lung cancer patients without ESRD. The reasons for poor survival for the WITH-ESRD medical treatment group and late diagnosis despite frequent medical visits merit further investigation.  相似文献   

13.
Changes in the human leukocyte antigen (HLA) class I expression and cytokine and chemokine production both by cancer cells and by normal surrounding tissue are believed to be responsible for immune escape and tumor progression. In this study, we compared the tumor expression levels of HLA heavy chain (HLAhc), beta-2-microglobulin (beta2m), chemokines (Interferon-gamma-inducible Protein-10 (IP-10), Interferon-inducible T-cell Alpha-Chemoattractant (I-TAC), Stromal cell-Derived Factor-1 (SDF-1), Macrophage Inflammatory Protein-1-alpha (MIP-1-alpha) and Regulated upon Activation, Normally T-Expressed, and presumably Secreted (RANTES)) and cytokines (Vascular Endothelial Growth Factor (VEGF), Interferon-gamma (IFN-gamma), Interleukin-10 (IL-10), Tumor Growth Factor-beta (TGB-beta)) in primary tumors and adjacent normal tissues from patients with localized and metastatic renal cell carcinoma (RCC) using a quantitative real-time polymerase chain reaction technique. We report that the expression of HLAhc, beta2m and the studied cytokines and chemokines (except for SDF-1) was significantly higher in the tumor (29 samples) than in the normal tissue (14 samples). When we compared the tumor expression levels between patients with localized RCC and patients with advanced metastatic stage, we found that the messenger RNA expression levels of HLAhc and beta2m were much lower in patients with metastatic RCC (6 cases) than in patients with localized cancer (23 cases), with levels similar to those in normal tissue. This was also confirmed on a protein level by immunohistological labeling of tumor tissues. Thirty-nine percent of the analyzed RCC tumors showed partial loss of HLA class I molecules, while 6% of the tumors showed HLA class I total loss. The expression of IP-10, SDF-1 and VEGF-c was also significantly lower in patients with advanced tumor, while the IFN-gamma expression in metastatic RCC was not detectable. Our findings show that primary RCC tumors are characterized by a high expression of HLAhc and a presence of proinflammatory mediators and chemokines. We also observed that disease progression and development of metastasis in RCC are associated with decreased expression of HLAhc, beta2m, IP-10, SDF-1 and IFN-gamma. This microenvironment may suppress the cytotoxic response, creating conditions that favor tumor escape and cancer progression.  相似文献   

14.

Purpose

In patients with diabetic end stage renal disease (ESRD), glycated albumin (GA) reflects recent glycemic control more accurately than glycated hemoglobin (HbA1c). We evaluated the relationship between GA and average blood glucose (AG) level and developed an estimating equation for translating GA values into easier-to-understand AG levels.

Materials and Methods

A total of 185 ESRD patients, including 154 diabetic and 31 non-diabetic participants, were enrolled (108 hemodialysis, 77 peritoneal dialysis). Patients were asked to perform four-point daily self-monitoring of capillary blood glucose (SMBG) at least three consecutive days each week for four weeks. Serum levels of GA, HbA1c and other biochemical parameters were checked at baseline, as well as at 4 and 8 weeks.

Results

Approximately 74.3±7.0 SMBG readings were obtained from each participant and mean AG was 169.1±48.2 mg/dL. The correlation coefficient between serum GA and AG levels (r=0.70, p<0.001) was higher than that of HbA1c and AG (r=0.54, p<0.001). Linear regression analysis yielded the following equation: estimated AG (eAG) (mg/dL)=4.71×GA%+73.35, and with this formula, serum GA levels could be easily translated to eAG levels. Multivariate analysis revealed significant contributions of postprandial hyperglycemia (β=0.25, p=0.03) and serum albumin (β=0.17, p=0.04) in determining serum GA level, independent to other clinical parameters.

Conclusion

Compared to HbA1c, serum GA levels were better correlated with AG levels. Using the estimating equation, an average blood glucose level of 155-160 mg/dL could be matched to a GA value of 18-19% in patients with ESRD.  相似文献   

15.
ObjectiveThis study aimed to examine whether a 12-week small-dose lanthanum carbonate (LaCO3; 500 mg/d) treatment could improve calcium and phosphorus metabolism and parathyroid function in Asian patients with end-stage renal disease (ESRD) under hemodialysis.MethodsThis was a prospective observational study of patients treated at our Hospital between 10/2014 and 02/2015. The patients were given 500 mg/d of LaCO3 with lunch for 12 weeks.ResultsBaseline and after 12-week treatment serum phosphorus levels were 2.49±0.51 mmol/L and 1.65±0.34 mmol/L (P<0.001). The baseline and after 12-week treatment calcium×phosphorus product were 69.40±17.34 mg2/dL2 and 44.27±9.67 mg2/dL2 (P<0.001). There was no significant difference in serum calcium and iPTH levels from baseline to after 12 weeks treatment (both P>0.05). Fourteen (25.9%) patients developed gastrointestinal adverse reactions to LaCO3 and 10 patients improved after treatment.ConclusionFar below the 1.5–3.0g/d required by the drug instructions, LaCO3 500 mg/d for 12 weeks can still reduce serum phosphorus level and calcium × phosphorus product, without serum calcium and iPTH levels increase.  相似文献   

16.
Acute disseminated encephalomyelitis (ADEM), seen mostly in children, is an acute demyelinating disease, affecting mainly the white matter of brain and spinal cord. We report an unusual case of ADEM in an 11-year old boy with endstage renal disease, who underwent hemopoietic stem cell transplantation prior to renal transplantation. He needed admission to the intensive care unit and required mechanical ventilation. He responded to intravenous injection of steroids and upon recovery, underwent renal transplantation successfully.  相似文献   

17.
Blood lymphocytes of a HLA-A2 positive breast cancer patient were stimulated with either MCF-7 or MDA-MB-231, i.e., HLA-A2-matched allogeneic breast carcinoma cell lines. Several CD8+ CTL clones with reactivity against the stimulator cells but not against K562 were generated. Reactivity could be blocked with monoclonal antibody (mAb) W6/32, MA2.1, and/or BB7.2, indicating that the clones are HLA-class I and HLA-A2 restricted. The CTL clones generated following stimulation with MCF-7, recognized various other allogeneic HLA-A2+ tumor cell lines, including breast carcinoma, renal cell carcinoma, and melanoma cell lines, but not HLA-A2 tumor cell lines. The CTL clones did not recognize normal HLA-A2+ cells including breast epithelial cells, renal proximal tubular epithelial cells (PTEC), or EBV-transformed B cells including the autologous EBV cell line. In contrast to the CTL clones induced with MCF-7, the reactivity of the clones stimulated with MDA-MB-231, was limited to the stimulator cell MDA-MB-231. Cytotoxicity assays utilizing T2 cells loaded with peptides as target cells indicated that none of the examined CTL-epitopes derived from HER-2/neu, Muc-1, Ep-CAM-1, and p53 were recognized by the CTL clones generated. Our findings underscore that breast cancer is an immunogenic tumor and that HLA-class I-matched allogeneic tumor cells can be used as stimulator cells to generate tumor-specific CTL from peripheral blood of a breast cancer patient with specificity for an antigenic determinant that is broadly expressed on tumor cells from various origins or with specificity limited to the breast cancer stimulator cell.  相似文献   

18.
Introduction: Behçet’s disease is an autoimmune disease with diverse clinical manifestations with vasculitis being the hallmark of the disease. The aim of this work is to study the genetic association between human leukocyte antigen (HLA) class-I molecules of Egyptians with Behçet’s disease and the disease susceptibility and clinical patterns.

Methods: Fifty-seven patients diagnosed with Behçet’s disease according to the 1990 International Study Group (ISG) criteria for Behçet’s disease coming from Egyptian origin up to the third grandfather were included in the study. Healthy controls were taken from HLA Class-I case control studies in Egyptian population yielding a pool of 221 healthy controls. HLA Class-I typing for patients was done using Reverse Sequence specific oligonucleotide probes (rSSO).

Results: Male patients represented 89% of the sample. Mean age of onset was 25.81 (± 6.7) years and mean disease duration was 9.47 (± 7.4) years. Behçet’s disease was associated with HLA-A*24 and HLA-B*42 (p = 0.001) and highly associated with HLA-A*68 and B*15 and B*51 (p < 0.001). While HLA A*03 and B*52 were protective for Behçet’s (p = 0.002 and 0.007). Interestingly, HLA-B*51 and HLA-A*68 (p = 0.005 and 0.023) were associated with the blinding eye disease. HLA-B*51 was protective from Neurological and vascular involvement (p = 0.005 and 0.032, respectively).

Conclusion: Behçet’s disease is associated with HLA Class-I A*24, A*68 and B*15, B*42 and B*51 in Egyptian patients while A*03 and B*52 were found to be protective. Interestingly, HLA B*51 and A*68 could be considered as poor prognostic factor for eye involvement.  相似文献   


19.
Expression of the proteasome subunits LMP2 and LMP7, the MHC-encoded transporter subunits TAP1 and TAP2, and HLA Class I antigens was examined by immunoperoxidase staining in 10 nevi and 98 melanoma lesions (60 primary and 38 metastatic), because these molecules play an important role in the presentation of melanoma-associated peptide antigens to cytotoxic T cells. LMP2 was less frequently expressed than LMP7 in primary and metastatic melanoma lesions. TAP1, TAP2, and HLA Class I antigen expression was more frequently (P < 0.05) down-regulated in metastatic than in primary melanoma lesions and in nevi. A synchronous TAP1, TAP2, and HLA Class I antigen down-regulation was observed in 58% of primary and 52% of metastatic lesions. TAP and HLA Class I antigen down-regulation in primary lesions was significantly associated with lesion thickness, stage of disease, reduced time to disease progression, and reduced survival. These results suggest that TAP down-regulation plays a role in the clinical course of malignant melanoma, probably by providing melanoma cells with a mechanism to escape from cytotoxic T lymphocyte recognition during disease progression.  相似文献   

20.
IntroductionEnd-stage renal disease (ESRD) is an important complication of diabetes, which is the leading cause of ESRD worldwide. The aim of the study was a comparative analysis of all-cause mortality in patients with ESRD with diagnosed diabetes mellitus (DM) and no diagnosed DM.Material and methodsData for the analysis were obtained from the resources of the Polish National Health Fund, and they concerned patients with end-stage renal disease from the entire population of Polish patients in the period from 1.01.2011 to 31.12.2013. In addition, the period from 1.01.2012 to 31.12.2012 was analysed for two subpopulations: diabetic and non-diabetic patients.ResultsThe all-cause mortality in patients with end-stage renal disease in Poland per 100,000 representatives of the general population was 17.7, 15.9, and 12.50 persons in 2011, 2012, and 2013, respectively. The all-cause mortality rates for patients with ESRD and diabetes in Poland in 2012 were more than 15 times higher, for both men and women, than the all-cause mortality rates for non-diabetic patients with ESRD. Mortality in the study group of diabetic men with ESRD amounted to 147.59 ±29.07/100,000 men, whereas in the study group of diabetic women with ESRD it was 105.13 ±26.77/100,000 women. Regarding non-diabetic men with ESRD and non-diabetic women with ESRD, mortality amounted to 9.58 ±6.29/100,000 and 6.87 ±2.27/100,000 men and women, respectively.ConclusionsThe occurrence of diabetes in patients with ESRD significantly increases the risk of death compared to patients with ESRD without diabetes.  相似文献   

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