Background: Cytokines are mediators of diseases. Expression levels in the blood could be of clinical relevance. Objective: sIL-2Rα is used as a marker for different malignancies in human medicine. The aim of this stu...Background: Cytokines are mediators of diseases. Expression levels in the blood could be of clinical relevance. Objective: sIL-2Rα is used as a marker for different malignancies in human medicine. The aim of this study was to show if sIL-2Rα is detectable and if there is any correlation to different diseases in dogs. Methods: For this purposes sIL-2Rα concentrations in the blood were measured in healthy dogs, in dogs with different non-neoplastic diseases and benign tumors and in dogs with malignant tumors. Serum levels of sIL-2Rα were measured by using a human specific enzyme linked immunosorbent assay (ELISA). Results: Measurement of sIL-2Rα was successful in most of the samples. Dogs with diseases have significantly increased serum levels of sIL-2Rα compared to healthy controls. sIL-2Rα serum levels are higher in patients with non-neoplastic diseases and benign tumors than in those with malignant neoplasia. There is a strong correlation between sIL-2Rα and leukocyte count. Conclusion: Measurements of sIL-2Rα in serum may be helpful in detecting stages and grades of inflammation in the progression of disease. sIL-2Rα could actually not be used as an indicator for malignant diseases in dogs like in humans. The strong correlation between sIL-2Rα and the leukocyte count indicates the inflammatory response to the disease. This could be helpful in giving a prognosis in some cases, because the inflammatory reaction is of prognostic relevance in different diseases including malignant and non-malignant neoplasia. Although the results of our research studies were very promising, further studies should be performed with a canine ELISA.展开更多
Soluble receptor for advanced glycation end products(sRAGE)acts as a decoy sequestering of RAGE ligands,thus preventing the activation of the ligand-RAGE axis linking human diseases.However,the molecular mechanisms un...Soluble receptor for advanced glycation end products(sRAGE)acts as a decoy sequestering of RAGE ligands,thus preventing the activation of the ligand-RAGE axis linking human diseases.However,the molecular mechanisms underlying sRAGE remain unclear.In this study,THP-1 monocytes were cultured in normal glucose(NG,5.5 mmol/L)and high glucose(HG,15 mmol/L)to investigate the effects of diabetesrelevant glucose concentrations on sRAGE and interleukin-1β(IL-1β)secretion.The modulatory effects of epigallocatechin gallate(EGCG)in response to HG challenge were also evaluated.HG enhanced intracellular reactive oxygen species(ROS)generation and RAGE expression.The secretion of sRAGE,including esRAGE and cRAGE,was reduced under HG conditions,together with the downregulation of a disintegrin and metallopeptidase 10(ADAM10)and nuclear factor erythroid 2-related factor 2(Nrf2)nuclear translocation.Mechanistically,the HG effects were counteracted by siRAGE and exacerbated by siNrf2.Chromatin immunoprecipitation results showed that Nrf2 binding to the ADAM10 promoter and HG interfered with this binding.Our data reinforce the notion that RAGE and Nrf2 might be sRAGE-regulating factors.Under HG conditions,the treatment of EGCG reduced ROS generation and RAGE activation.EGCG-stimulated cRAGE release was likely caused by the upregulation of the Nrf2-ADAM10 pathway.EGCG inhibited HG-mediated NLRP3 inflammasome activation at least partly by stimulating sRAGE,thereby reducing IL-1βrelease.展开更多
目的探讨血清可溶性白细胞介素-2受体(sIL-2R)、降钙素原、微小RNA(miR)-223与新生儿肺炎病情程度及转归的关系。方法回顾性选取2018年1月至2023年6月池州市第二人民医院新生儿科收治的80例新生儿肺炎患儿作为肺炎组,另外选取本院同期...目的探讨血清可溶性白细胞介素-2受体(sIL-2R)、降钙素原、微小RNA(miR)-223与新生儿肺炎病情程度及转归的关系。方法回顾性选取2018年1月至2023年6月池州市第二人民医院新生儿科收治的80例新生儿肺炎患儿作为肺炎组,另外选取本院同期出生的健康新生儿80名作为对照组。对比两组的血清sIL-2R、降钙素原、miR-223水平。并按照患儿病情程度、治疗转归进行分组,其中,轻度组患儿44例,重度组患儿36例;经过治疗,预后良好组患儿63例,预后不良组患儿17例。对比不同病情程度、不同转归新生儿肺炎患儿血清sIL-2R、降钙素原、miR-223水平。采用多因素Logistic回归模型分析血清sIL-2R、降钙素原、miR-223与患儿治疗转归结局的关系。结果肺炎组患儿血清sIL-2R、降钙素原、miR-223水平分别为(32.40±8.94)μg/mL、(10.40±2.91)ng/mL、9.84±2.77,均显著高于对照组[(15.48±3.84)μg/mL、(5.84±1.50)ng/mL、6.10±1.84],差异均有统计学意义(P<0.05)。重度组患儿的血清sIL-2R、降钙素原、miR-223水平分别为(36.63±8.70)μg/mL、(12.44±2.70)ng/mL、11.65±2.32,均显著高于轻度组[(28.94±6.13)μg/mL、(8.73±2.65)ng/mL、8.36±2.45],差异均有统计学意义(P<0.05)。预后不良组患儿的血清sIL-2R、降钙素原、miR-223水平分别为(40.85±6.92)μg/mL、(15.70±2.56)ng/mL、15.10±2.13,均显著高于预后良好组[(30.12±8.77)μg/mL、(8.97±2.43)ng/mL、8.42±2.65],差异均有统计学意义(P<0.05)。不同分娩孕周(≥37周vs.<37周)、不同出生体重(≥2500 g vs.<2500 g)、不同出生1 min Apgar评分(≥8分vs.<8分)的新生儿肺炎患儿的转归结局比较,差异均有统计学意义(P<0.05);Logistic回归模型分析,结果显示:分娩孕周<37周、出生体重<2500 g、出生1 min Apgar评分<8分及血清sIL-2R升高、降钙素原升高、miR-223升高是新生儿肺炎患儿治疗转归结局不良的独立危险因素(P<0.05)。结论新生儿肺炎患儿血清sIL-2R、降钙素原、miR-223水平显著提高,并且与患儿病情程度、不良预后结局关系密切。展开更多
Aim: To explore the possible mechanisms of male infertility caused by antisperm antibody (AsAb). Methods: Thesoluble interleukin-2 receptor (sIL-2R) level in serum was analyzed by ELISA and Na^+ -K^+ -exchanging ATPas...Aim: To explore the possible mechanisms of male infertility caused by antisperm antibody (AsAb). Methods: Thesoluble interleukin-2 receptor (sIL-2R) level in serum was analyzed by ELISA and Na^+ -K^+ -exchanging ATPase activi-ty in semen by phosphorus (Pi) assay. Results: The slL-2R level in serum was significantly higher and the Na^+ -K^+ -exchanging ATPase activity in semen significantly lower in AsAb positive infertile men when compared with thecontrols. Conclusion: The AsAb titer varies with the slL-2R level in serum. A decrease in Na^+ -K^+ -exchangingATPase activity in semen may play a role in male infertility caused by AsAb.展开更多
AIM: To investigate serum levels of soluble CD146(s CD146) and vascular endothelial growth factor receptor 2(VEGFR2) in patients with age-related macular degeneration(AMD). METHODS: Eighty-eight patients with exudativ...AIM: To investigate serum levels of soluble CD146(s CD146) and vascular endothelial growth factor receptor 2(VEGFR2) in patients with age-related macular degeneration(AMD). METHODS: Eighty-eight patients with exudative AMD and 45 sex-and age-matched healthy controls were enrolled in this study conducted in China. Serum samples was obtained from the patients with exudative AMD and from the controls. Serum sCD146 and VEGFR2 protein levels were measured using an enzyme-linked immunosorbent assay.RESULTS: We found that serum sCD146 and VEGFR2 protein levels were significantly higher in the patients with exudative AMD group than in the controls(t=3.859, P<0.001 and t=3.829, P<0.001, respectively). Serum sCD146 levels were significantly higher in patients with classic choroidal neovascularization(CNV) than in those with occult CNV(t=9.899, P<0.001). There was a significant difference in the trend for exudative AMD in the highest versus lowest quartile of circulating sCD146 levels(χ2=10.29, P=0.001). The receiver operating characteristic curve analysis showed that the area under the curve was 0.696 for s CD146(95%CI: 0.601-0.791) with an optimum diagnostic cut-off value of 157.16 ng/mL, a sensitivity of 55.7%, and a specificity of 82.2%.CONCLUSION: The serum sCD146 level increases and may be a biomarker for exudative AMD.展开更多
AIM: To investigate the relationship between serum soluble interleukin-2 receptor (sIL-2R) level and anti-HBc in patients with chronic hepatitis B virus (HBV) infection. METHODS: Sera from 100 patients with chro...AIM: To investigate the relationship between serum soluble interleukin-2 receptor (sIL-2R) level and anti-HBc in patients with chronic hepatitis B virus (HBV) infection. METHODS: Sera from 100 patients with chronic HBV infection and 30 healthy controls were included in this study. The patients were divided into group A [HBsAg (+), HBeAg (+) and anti-HBc (+), n = 50] and group B [HBsAg (+), HBeAg (+) and anti-HBc (-), n = 50]. sIL-2R levels were determined using ELISA. HBV DNA and alanine aminotransferase (ALT) were also detected. RESULTS: Serum sIL-2R levels were significantly higher in patients with chronic HBV infection than in healthy controls. Moreover, serum sIL-2R levels were significantly higher in patients with HBsAg (+), HBeAg (+) and antiHBc (+) (976.56±213.51×10^3 U/L) than in patients with HBsAg (+), HBeAg (+) and anti-HBc (-) (393.41±189.54 ×10^3 U/L, P〈 0.01). A significant relationship was found between serum sIL-2R and ALT levels (P〈 0.01) in patients with chronic HBV infection, but there was no correlation between sIL-2R and HBV DNA levels. The anti-HBc status was significantly related to the age of patients (P〈 0.01). CONCLUSION: The high sIL-2R level is related to positive anti-HBc in chronic hepatitis B patients. Positive anti-HBc may be related to T-lymphocyte activation and negative anti-HBc may imply immune tolerance in these patients.展开更多
Objective: to explore the mechanism of leeching in treating systemic lupus erythematosus (SLE). Methods: Forty-four patients with SLE were randomly divided into conventional corticosteroid treated group (control group...Objective: to explore the mechanism of leeching in treating systemic lupus erythematosus (SLE). Methods: Forty-four patients with SLE were randomly divided into conventional corticosteroid treated group (control group, n =20) and conventional treatment group with leeching intervention added (leeching group, n =24). Before and after treatment the concentration of plasma endothelin (ET) and soluble interleukin-2 receptor (sIL-2R) were determined. Results: Before treatment the level of plasma ET and sIL-2R in the SLE patients were all higher than those in the normal healthy group, ( P <0.01). But after treatment the level of these in both groups were significantly improved than those of before treatment ( P <0.05), and comparison between these two treated groups showed that the difference between them was significant ( P <0.05). Conclusion: Leeching added to conventional treatment of SLE could be more effective in improving the level of plasma ET and sIL-2R, and ameliorating the impairment of renal tissues.展开更多
文摘Background: Cytokines are mediators of diseases. Expression levels in the blood could be of clinical relevance. Objective: sIL-2Rα is used as a marker for different malignancies in human medicine. The aim of this study was to show if sIL-2Rα is detectable and if there is any correlation to different diseases in dogs. Methods: For this purposes sIL-2Rα concentrations in the blood were measured in healthy dogs, in dogs with different non-neoplastic diseases and benign tumors and in dogs with malignant tumors. Serum levels of sIL-2Rα were measured by using a human specific enzyme linked immunosorbent assay (ELISA). Results: Measurement of sIL-2Rα was successful in most of the samples. Dogs with diseases have significantly increased serum levels of sIL-2Rα compared to healthy controls. sIL-2Rα serum levels are higher in patients with non-neoplastic diseases and benign tumors than in those with malignant neoplasia. There is a strong correlation between sIL-2Rα and leukocyte count. Conclusion: Measurements of sIL-2Rα in serum may be helpful in detecting stages and grades of inflammation in the progression of disease. sIL-2Rα could actually not be used as an indicator for malignant diseases in dogs like in humans. The strong correlation between sIL-2Rα and the leukocyte count indicates the inflammatory response to the disease. This could be helpful in giving a prognosis in some cases, because the inflammatory reaction is of prognostic relevance in different diseases including malignant and non-malignant neoplasia. Although the results of our research studies were very promising, further studies should be performed with a canine ELISA.
文摘Soluble receptor for advanced glycation end products(sRAGE)acts as a decoy sequestering of RAGE ligands,thus preventing the activation of the ligand-RAGE axis linking human diseases.However,the molecular mechanisms underlying sRAGE remain unclear.In this study,THP-1 monocytes were cultured in normal glucose(NG,5.5 mmol/L)and high glucose(HG,15 mmol/L)to investigate the effects of diabetesrelevant glucose concentrations on sRAGE and interleukin-1β(IL-1β)secretion.The modulatory effects of epigallocatechin gallate(EGCG)in response to HG challenge were also evaluated.HG enhanced intracellular reactive oxygen species(ROS)generation and RAGE expression.The secretion of sRAGE,including esRAGE and cRAGE,was reduced under HG conditions,together with the downregulation of a disintegrin and metallopeptidase 10(ADAM10)and nuclear factor erythroid 2-related factor 2(Nrf2)nuclear translocation.Mechanistically,the HG effects were counteracted by siRAGE and exacerbated by siNrf2.Chromatin immunoprecipitation results showed that Nrf2 binding to the ADAM10 promoter and HG interfered with this binding.Our data reinforce the notion that RAGE and Nrf2 might be sRAGE-regulating factors.Under HG conditions,the treatment of EGCG reduced ROS generation and RAGE activation.EGCG-stimulated cRAGE release was likely caused by the upregulation of the Nrf2-ADAM10 pathway.EGCG inhibited HG-mediated NLRP3 inflammasome activation at least partly by stimulating sRAGE,thereby reducing IL-1βrelease.
文摘目的探讨血清可溶性白细胞介素-2受体(sIL-2R)、降钙素原、微小RNA(miR)-223与新生儿肺炎病情程度及转归的关系。方法回顾性选取2018年1月至2023年6月池州市第二人民医院新生儿科收治的80例新生儿肺炎患儿作为肺炎组,另外选取本院同期出生的健康新生儿80名作为对照组。对比两组的血清sIL-2R、降钙素原、miR-223水平。并按照患儿病情程度、治疗转归进行分组,其中,轻度组患儿44例,重度组患儿36例;经过治疗,预后良好组患儿63例,预后不良组患儿17例。对比不同病情程度、不同转归新生儿肺炎患儿血清sIL-2R、降钙素原、miR-223水平。采用多因素Logistic回归模型分析血清sIL-2R、降钙素原、miR-223与患儿治疗转归结局的关系。结果肺炎组患儿血清sIL-2R、降钙素原、miR-223水平分别为(32.40±8.94)μg/mL、(10.40±2.91)ng/mL、9.84±2.77,均显著高于对照组[(15.48±3.84)μg/mL、(5.84±1.50)ng/mL、6.10±1.84],差异均有统计学意义(P<0.05)。重度组患儿的血清sIL-2R、降钙素原、miR-223水平分别为(36.63±8.70)μg/mL、(12.44±2.70)ng/mL、11.65±2.32,均显著高于轻度组[(28.94±6.13)μg/mL、(8.73±2.65)ng/mL、8.36±2.45],差异均有统计学意义(P<0.05)。预后不良组患儿的血清sIL-2R、降钙素原、miR-223水平分别为(40.85±6.92)μg/mL、(15.70±2.56)ng/mL、15.10±2.13,均显著高于预后良好组[(30.12±8.77)μg/mL、(8.97±2.43)ng/mL、8.42±2.65],差异均有统计学意义(P<0.05)。不同分娩孕周(≥37周vs.<37周)、不同出生体重(≥2500 g vs.<2500 g)、不同出生1 min Apgar评分(≥8分vs.<8分)的新生儿肺炎患儿的转归结局比较,差异均有统计学意义(P<0.05);Logistic回归模型分析,结果显示:分娩孕周<37周、出生体重<2500 g、出生1 min Apgar评分<8分及血清sIL-2R升高、降钙素原升高、miR-223升高是新生儿肺炎患儿治疗转归结局不良的独立危险因素(P<0.05)。结论新生儿肺炎患儿血清sIL-2R、降钙素原、miR-223水平显著提高,并且与患儿病情程度、不良预后结局关系密切。
文摘Aim: To explore the possible mechanisms of male infertility caused by antisperm antibody (AsAb). Methods: Thesoluble interleukin-2 receptor (sIL-2R) level in serum was analyzed by ELISA and Na^+ -K^+ -exchanging ATPase activi-ty in semen by phosphorus (Pi) assay. Results: The slL-2R level in serum was significantly higher and the Na^+ -K^+ -exchanging ATPase activity in semen significantly lower in AsAb positive infertile men when compared with thecontrols. Conclusion: The AsAb titer varies with the slL-2R level in serum. A decrease in Na^+ -K^+ -exchangingATPase activity in semen may play a role in male infertility caused by AsAb.
基金Supported by the National Natural Science Foundation of China(No.81670881)
文摘AIM: To investigate serum levels of soluble CD146(s CD146) and vascular endothelial growth factor receptor 2(VEGFR2) in patients with age-related macular degeneration(AMD). METHODS: Eighty-eight patients with exudative AMD and 45 sex-and age-matched healthy controls were enrolled in this study conducted in China. Serum samples was obtained from the patients with exudative AMD and from the controls. Serum sCD146 and VEGFR2 protein levels were measured using an enzyme-linked immunosorbent assay.RESULTS: We found that serum sCD146 and VEGFR2 protein levels were significantly higher in the patients with exudative AMD group than in the controls(t=3.859, P<0.001 and t=3.829, P<0.001, respectively). Serum sCD146 levels were significantly higher in patients with classic choroidal neovascularization(CNV) than in those with occult CNV(t=9.899, P<0.001). There was a significant difference in the trend for exudative AMD in the highest versus lowest quartile of circulating sCD146 levels(χ2=10.29, P=0.001). The receiver operating characteristic curve analysis showed that the area under the curve was 0.696 for s CD146(95%CI: 0.601-0.791) with an optimum diagnostic cut-off value of 157.16 ng/mL, a sensitivity of 55.7%, and a specificity of 82.2%.CONCLUSION: The serum sCD146 level increases and may be a biomarker for exudative AMD.
基金Supported by the Namral Science Foundation of Gansu Province,No.ZR-96-078
文摘AIM: To investigate the relationship between serum soluble interleukin-2 receptor (sIL-2R) level and anti-HBc in patients with chronic hepatitis B virus (HBV) infection. METHODS: Sera from 100 patients with chronic HBV infection and 30 healthy controls were included in this study. The patients were divided into group A [HBsAg (+), HBeAg (+) and anti-HBc (+), n = 50] and group B [HBsAg (+), HBeAg (+) and anti-HBc (-), n = 50]. sIL-2R levels were determined using ELISA. HBV DNA and alanine aminotransferase (ALT) were also detected. RESULTS: Serum sIL-2R levels were significantly higher in patients with chronic HBV infection than in healthy controls. Moreover, serum sIL-2R levels were significantly higher in patients with HBsAg (+), HBeAg (+) and antiHBc (+) (976.56±213.51×10^3 U/L) than in patients with HBsAg (+), HBeAg (+) and anti-HBc (-) (393.41±189.54 ×10^3 U/L, P〈 0.01). A significant relationship was found between serum sIL-2R and ALT levels (P〈 0.01) in patients with chronic HBV infection, but there was no correlation between sIL-2R and HBV DNA levels. The anti-HBc status was significantly related to the age of patients (P〈 0.01). CONCLUSION: The high sIL-2R level is related to positive anti-HBc in chronic hepatitis B patients. Positive anti-HBc may be related to T-lymphocyte activation and negative anti-HBc may imply immune tolerance in these patients.
文摘Objective: to explore the mechanism of leeching in treating systemic lupus erythematosus (SLE). Methods: Forty-four patients with SLE were randomly divided into conventional corticosteroid treated group (control group, n =20) and conventional treatment group with leeching intervention added (leeching group, n =24). Before and after treatment the concentration of plasma endothelin (ET) and soluble interleukin-2 receptor (sIL-2R) were determined. Results: Before treatment the level of plasma ET and sIL-2R in the SLE patients were all higher than those in the normal healthy group, ( P <0.01). But after treatment the level of these in both groups were significantly improved than those of before treatment ( P <0.05), and comparison between these two treated groups showed that the difference between them was significant ( P <0.05). Conclusion: Leeching added to conventional treatment of SLE could be more effective in improving the level of plasma ET and sIL-2R, and ameliorating the impairment of renal tissues.