目的探讨感染性休克患者血清肽酰基精氨酸脱亚胺酶2(peptidylarginine deiminase type 2,PAD2)表达水平与急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)评分的相关性。方法选取内江市第...目的探讨感染性休克患者血清肽酰基精氨酸脱亚胺酶2(peptidylarginine deiminase type 2,PAD2)表达水平与急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)评分的相关性。方法选取内江市第一人民医院2020年6月~2022年6月收治的103例感染性休克患者作为研究组,采用APACHEⅡ评分根据患者病情严重程度将其分为轻度组(n=9)、中度组(n=51)和重度组(n=13),另外选取103例同期在该院体检且一般资料与研究组患者相匹配的健康者作为对照组。采用酶联免疫吸附法测定感染性休克患者血清PAD2表达水平;采用Spearman法分析感染性休克患者血清PAD2表达水平与APACHEⅡ评分的相关性;采用Logistic回归分析影响感染性休克患者病情严重程度的相关因素;采用受试者工作特征(receiver operating characteristic,ROC)曲线分析血清PAD2对中重度感染性休克的诊断价值。结果研究组与对照组血肌酐(137.52±9.01μmol/L vs 112.22±8.67μmol/L)水平及血小板计数(74.58±5.19 vs 86.02±5.34)×109/L比较,差异具有统计学意义(t=20.535,15.591,均P<0.05);研究组患者血清PAD2表达水平(42.47±6.22 ng/ml)高于对照组(38.59±5.31 ng/ml),差异具有统计学意义(t=4.815,P<0.05);感染性休克患者血清PAD2表达水平和APACHEⅡ评分均随病情严重程度的增加而逐渐升高(F=3.777,176.582,均P<0.05);感染性休克患者血清PAD2表达水平与APACHEⅡ评分呈正相关(r=0.859,P<0.05);血肌酐(OR=1.927)、PAD2(OR=1.803)及APACHEⅡ评分(OR=1.657)均为发生中重度感染性休克的危险因素(均P<0.05),血小板计数(OR=0.781)则是发生中重度感染性休克的保护因素(P<0.05)。血清PAD2诊断中重度感染性休克的曲线下面积(area under the curve,AUC)为0.880,敏感度、特异度分别为75.73%(95%CI:0.701~0.826)和90.29%(95%CI:0.851~0.935),对中重度感染性休克具有较高的诊断价值。结论血清PAD2表达水平与APACHEⅡ评分呈正相关,且对中重度感染性休克具有较好诊断价值。展开更多
利用DPS数据统计软件,对II优航2号的6个产量构成因素进行多元逐步回归分析、相关分析、通径分析以及Eberhard and Russell模式分析。结果表明,穗数对II优航2号产量的作用最大,结实率和穗实粒数对产量也有较大影响。高产栽培策略是在确...利用DPS数据统计软件,对II优航2号的6个产量构成因素进行多元逐步回归分析、相关分析、通径分析以及Eberhard and Russell模式分析。结果表明,穗数对II优航2号产量的作用最大,结实率和穗实粒数对产量也有较大影响。高产栽培策略是在确保足够有效穗的前提下,适度促大穗,提高结实率。笔者还对该组合的丰产稳产性进行分析,结果表明,II优航2号丰产性、稳产性及适应性都优于对照,是一个较为理想的迟熟杂交稻新组合。展开更多
AIM To investigate the role of calmodulin-dependent protein kinase Ⅱ(Ca MKⅡ) in colon cancer growth,migration and invasion.METHODS Ca MKⅡ expression in colon cancer and paracancerous tissues was evaluated via immun...AIM To investigate the role of calmodulin-dependent protein kinase Ⅱ(Ca MKⅡ) in colon cancer growth,migration and invasion.METHODS Ca MKⅡ expression in colon cancer and paracancerous tissues was evaluated via immunochemistry. Transcriptional and posttranscriptional levels of Ca MKⅡin tissue samples and MMP2,MMP9 and TIMP-1 expression in the human colon cancer cell line HCT116 were assessed by q RTPCR and western blot. Cell proliferation was detected with the MTT assay. Cancer cell migration and invasion were investigated with the Transwell culture system and woundhealing assay.RESULTS We first demonstrated that CaMK Ⅱ was ove rexpressed in human colon cancers and was associated with cancer differentiation. In the human colon cancer cell line HCT116,the Ca MKII-specific inhibitor KN93,but not its inactive analogue KN92,decreased cancer cell proliferation. Furthermore,KN93 also significantly prohibited HCT116 cell migration and invasion. The specific inhibition of ERK1/2 or p38 decreased the proliferation and migration of colon cancer cells.CONCLUSION Our findings highlight Ca MKⅡ as a potential critical mediator in human colon tumor development and metastasis.展开更多
A new mixed-ligand nickel（Ⅱ） complex, [Ni（L）（DCA）（H2O）]·2H2O （L = C8H9N3, 2-aminomethyl-benzimidazole, DCA2- = 7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylate, demethylcantharate, C8H8O5）, has been synthe...A new mixed-ligand nickel（Ⅱ） complex, [Ni（L）（DCA）（H2O）]·2H2O （L = C8H9N3, 2-aminomethyl-benzimidazole, DCA2- = 7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylate, demethylcantharate, C8H8O5）, has been synthesized and characterized. The structure of the complex was determined by single-crystal X-ray diffraction. It is of monoclinic system, space group P21/c with a = 7.7211（7）, b = 12.0799（12）, c = 19.7867（19）, β = 100.390（6）°, V = 1815.2（3） nm3, Dc = 1.625 g·cm-3, Ζ = 4, F（000） = 928, R = 0.0314 and wR = 0.0822. In addition, the interaction between the complex and DNA was studied by means of fluorescence spectra and viscosity. The results indicate that the complex binds to DNA by the mode of partial intercalation with the Stern-Volmer constants Ksv of 3.81 × 104 mol·L-1.展开更多
The reaction of the cobalt(II) meso-tetraphenylporphyrin (TPP) starting material with an excess of 2-aminophenol (Hon) in organic solvents, yields the cobalt(II) porphyrin species [CoII(TPP)(Hon)2] (1). This compound ...The reaction of the cobalt(II) meso-tetraphenylporphyrin (TPP) starting material with an excess of 2-aminophenol (Hon) in organic solvents, yields the cobalt(II) porphyrin species [CoII(TPP)(Hon)2] (1). This compound has been characterized by UV-vis., IR, MSI MS and 1H NMR spectroscopy. The UV-vis data and especially the proton NMR results, for the isolated product, indicated that complex 1 is a Co(II) mesoporphyrin derivative.The X-ray molecular structure of the title compound bis(2-aminophenol) (tetraphenylporphyrinato) cobalt(II) has been determined. This structure is the first one reported of a metalloporphyrin with a 2-aminophenol axial ligand species. The central metal is hexacoordinated by the four nitrogen atoms of the pyrrole rings and the nitrogen atoms of the two Hon trans axial ligands.展开更多
文摘目的探讨感染性休克患者血清肽酰基精氨酸脱亚胺酶2(peptidylarginine deiminase type 2,PAD2)表达水平与急性生理学和慢性健康状况评价Ⅱ(acute physiology and chronic health evaluationⅡ,APACHEⅡ)评分的相关性。方法选取内江市第一人民医院2020年6月~2022年6月收治的103例感染性休克患者作为研究组,采用APACHEⅡ评分根据患者病情严重程度将其分为轻度组(n=9)、中度组(n=51)和重度组(n=13),另外选取103例同期在该院体检且一般资料与研究组患者相匹配的健康者作为对照组。采用酶联免疫吸附法测定感染性休克患者血清PAD2表达水平;采用Spearman法分析感染性休克患者血清PAD2表达水平与APACHEⅡ评分的相关性;采用Logistic回归分析影响感染性休克患者病情严重程度的相关因素;采用受试者工作特征(receiver operating characteristic,ROC)曲线分析血清PAD2对中重度感染性休克的诊断价值。结果研究组与对照组血肌酐(137.52±9.01μmol/L vs 112.22±8.67μmol/L)水平及血小板计数(74.58±5.19 vs 86.02±5.34)×109/L比较,差异具有统计学意义(t=20.535,15.591,均P<0.05);研究组患者血清PAD2表达水平(42.47±6.22 ng/ml)高于对照组(38.59±5.31 ng/ml),差异具有统计学意义(t=4.815,P<0.05);感染性休克患者血清PAD2表达水平和APACHEⅡ评分均随病情严重程度的增加而逐渐升高(F=3.777,176.582,均P<0.05);感染性休克患者血清PAD2表达水平与APACHEⅡ评分呈正相关(r=0.859,P<0.05);血肌酐(OR=1.927)、PAD2(OR=1.803)及APACHEⅡ评分(OR=1.657)均为发生中重度感染性休克的危险因素(均P<0.05),血小板计数(OR=0.781)则是发生中重度感染性休克的保护因素(P<0.05)。血清PAD2诊断中重度感染性休克的曲线下面积(area under the curve,AUC)为0.880,敏感度、特异度分别为75.73%(95%CI:0.701~0.826)和90.29%(95%CI:0.851~0.935),对中重度感染性休克具有较高的诊断价值。结论血清PAD2表达水平与APACHEⅡ评分呈正相关,且对中重度感染性休克具有较好诊断价值。
文摘利用DPS数据统计软件,对II优航2号的6个产量构成因素进行多元逐步回归分析、相关分析、通径分析以及Eberhard and Russell模式分析。结果表明,穗数对II优航2号产量的作用最大,结实率和穗实粒数对产量也有较大影响。高产栽培策略是在确保足够有效穗的前提下,适度促大穗,提高结实率。笔者还对该组合的丰产稳产性进行分析,结果表明,II优航2号丰产性、稳产性及适应性都优于对照,是一个较为理想的迟熟杂交稻新组合。
基金Supported by the National Natural Science Foundation of China,No.81302131
文摘AIM To investigate the role of calmodulin-dependent protein kinase Ⅱ(Ca MKⅡ) in colon cancer growth,migration and invasion.METHODS Ca MKⅡ expression in colon cancer and paracancerous tissues was evaluated via immunochemistry. Transcriptional and posttranscriptional levels of Ca MKⅡin tissue samples and MMP2,MMP9 and TIMP-1 expression in the human colon cancer cell line HCT116 were assessed by q RTPCR and western blot. Cell proliferation was detected with the MTT assay. Cancer cell migration and invasion were investigated with the Transwell culture system and woundhealing assay.RESULTS We first demonstrated that CaMK Ⅱ was ove rexpressed in human colon cancers and was associated with cancer differentiation. In the human colon cancer cell line HCT116,the Ca MKII-specific inhibitor KN93,but not its inactive analogue KN92,decreased cancer cell proliferation. Furthermore,KN93 also significantly prohibited HCT116 cell migration and invasion. The specific inhibition of ERK1/2 or p38 decreased the proliferation and migration of colon cancer cells.CONCLUSION Our findings highlight Ca MKⅡ as a potential critical mediator in human colon tumor development and metastasis.
基金Supported by the Natural Science Foundation of Zhejiang Province (Y407301)
文摘A new mixed-ligand nickel（Ⅱ） complex, [Ni（L）（DCA）（H2O）]·2H2O （L = C8H9N3, 2-aminomethyl-benzimidazole, DCA2- = 7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylate, demethylcantharate, C8H8O5）, has been synthesized and characterized. The structure of the complex was determined by single-crystal X-ray diffraction. It is of monoclinic system, space group P21/c with a = 7.7211（7）, b = 12.0799（12）, c = 19.7867（19）, β = 100.390（6）°, V = 1815.2（3） nm3, Dc = 1.625 g·cm-3, Ζ = 4, F（000） = 928, R = 0.0314 and wR = 0.0822. In addition, the interaction between the complex and DNA was studied by means of fluorescence spectra and viscosity. The results indicate that the complex binds to DNA by the mode of partial intercalation with the Stern-Volmer constants Ksv of 3.81 × 104 mol·L-1.
文摘The reaction of the cobalt(II) meso-tetraphenylporphyrin (TPP) starting material with an excess of 2-aminophenol (Hon) in organic solvents, yields the cobalt(II) porphyrin species [CoII(TPP)(Hon)2] (1). This compound has been characterized by UV-vis., IR, MSI MS and 1H NMR spectroscopy. The UV-vis data and especially the proton NMR results, for the isolated product, indicated that complex 1 is a Co(II) mesoporphyrin derivative.The X-ray molecular structure of the title compound bis(2-aminophenol) (tetraphenylporphyrinato) cobalt(II) has been determined. This structure is the first one reported of a metalloporphyrin with a 2-aminophenol axial ligand species. The central metal is hexacoordinated by the four nitrogen atoms of the pyrrole rings and the nitrogen atoms of the two Hon trans axial ligands.
