目的 探讨妊娠期肝病患者外周血25-羟基维生素D_(3)[25-hydroxy vitamin D_(3),25(OH)D_(3)]、高迁移率蛋白1(high mobility group box 1,HMGB1)、微小RNA-122(microRNA-122,miR-122)表达与凝血功能的相关性。方法 选取2019年2月至2021...目的 探讨妊娠期肝病患者外周血25-羟基维生素D_(3)[25-hydroxy vitamin D_(3),25(OH)D_(3)]、高迁移率蛋白1(high mobility group box 1,HMGB1)、微小RNA-122(microRNA-122,miR-122)表达与凝血功能的相关性。方法 选取2019年2月至2021年2月东营区人民医院收治的78例妊娠期肝病患者作为研究组,另选取同期78例健康孕妇作为对照组。比较两组25(OH)D_(3)、HMGB1、miR-122、凝血酶原时间(prothombin time,PT)、活化部分凝血活酶时间(activited partial thomboplastin time,APTT)、纤维蛋白原(fibrinogen,FIB)、天门冬氨酸氨基转移酶(aspartate aminotransferase,AST)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、γ-谷氨酰转肽酶(γ-glutamyltranspeptidase,GGT)水平,分析25(OH)D_(3)、HMGB1、miR-122与凝血功能指标的相关性,采用受试者工作特征(receiver operating characteristic,ROC)曲线评价25(OH)D_(3)、HMGB1、miR-122与凝血功能指标对妊娠期肝病的评估价值,比较两组患者的妊娠结局。结果 研究组患者25(OH)D_(3)[(54.17±9.47)nmol/Lvs(65.98±11.02)nmol/L]和FIB[(2.74±0.69)g/L vs (5.31±1.49)g/L]水平低于对照组,HMGB1[(8.52±1.93)μg/L vs (6.17±1.59)μg/L]、miR-122 (13.49±4.07vs 8.28±2.50)、PT[(15.84±5.13)s vs (12.69±3.46)s]、APTT[(40.12±7.41)s vs (32.19±8.03)s]、ALT[(22.49±3.56)U/L vs (8.31±2.64)U/L]、AST[(78.29±12.75)U/L vs (21.69±7.28)U/L]、GGT[(42.49±11.16)U/L vs (20.69±6.24)U/L]水平高于对照组,差异有统计学意义(P均<0.05)。妊娠期肝病患者25(OH)D_(3)、FIB与ALT、AST、GGT呈负相关,HMGB1、miR-122、PT、APTT与ALT、AST、GGT呈正相关(P均<0.05)。妊娠期肝病患者25(OH)D_(3)与PT、APTT呈负相关,与FIB呈正相关,HMGB1、miR-122与PT、APTT呈正相关,与FIB呈负相关(P均<0.05)。25(OH)D_(3)、HMGB1、miR-122与凝血功能指标联合评估妊娠期肝病的ROC曲线下面积为0.884;研究组患者不良妊娠结局发生率高于对照组[16.67%(13/78) vs 2.56%(2/78);χ^(2)=8.925,P=0.003]。结论 妊娠期肝病患者外周血25(OH)D_(3)、HMGB1、miR-122水平与凝血功能间存在良好线性关系,对患者外周血25(OH)D_(3)、HMGB1、miR-122水平及凝血功能进行检测在妊娠期肝病评估方面具有一定辅助作用。展开更多
Our previous studies revealed that 1, 25-dihydroxyvrtamin D_3[1, 25 (OH)_2, D_3] and its two novel analogues (MC903 and EB1089) play an important role in the modulation of proliferation and differentiation of a newly ...Our previous studies revealed that 1, 25-dihydroxyvrtamin D_3[1, 25 (OH)_2, D_3] and its two novel analogues (MC903 and EB1089) play an important role in the modulation of proliferation and differentiation of a newly established human megakaryoblastic leu展开更多
Background Human adipose tissue-derived stromal cells （hADSCs） can be induced to differentiate along an osteoblastic lineage under stimulation of dexamethasone （DEX）. Recent studies, however, have questioned the e...Background Human adipose tissue-derived stromal cells （hADSCs） can be induced to differentiate along an osteoblastic lineage under stimulation of dexamethasone （DEX）. Recent studies, however, have questioned the efficacy of glucocorticoids such as DEX in mediating the osteogenesis process of skeletal progenitor cells and processed lipoaspirate cells. Is it possible to find a substitute for DEX？ Therefore, this study was designed to investigate osteogenic capacity and regulating mechanisms for osteoblastic differentiation of hADSCs by comparing osteogenic media （OM） containing either 1, 25-dihydroxyvitamin D3 （VD） or DEX and determine if VD was an ideal substitute for DEX as an induction agent for the osteogenesis of hADSCs. Methods Osteogenic differentiation of hADSCs was induced by osteogenic medium （OM） containing either 10 nmol/L VD or 100 nmol/L DEX. Differentiation of hADSCs into osteoblastic lineage was identified by alkaline phosphatase （ALP） staining, von Kossa staining, and reverse transcription-polymerase chain reaction assays for mRNA expression of osteogenesis-related genes such as type Ⅰ collagen （COL Ⅰ）, bone sialoprotein （BSP）, osteocalcin （OC）, bone morphogenetic protein （BMP）-2, BMP-4, BMP-6, BMP-7, runt-related transcription factor 2/core binding factor α1 （Runx2/Cbfal）, osterix （Osx）, and LIM mineralization protein- 1 （LMP- 1）. Results von Kossa staining revealed that the differentiated cells induced by both VD and DEX were mineralized in vitro. They also expressed osteoblast-related markers, such as ALP, COL Ⅰ, BSP, and OC. Runx2/Cbfal, Osx, BMP-6, and LMP-1 were upregulated during VD and DEX-induced hADSC osteoblastic differentiation, but BMP-4, BMP-7 were not. BMP-2 was only expressed in VD-induced differentiated cells. Conclusions VD or DEX-induced hADSCs differentiate toward the osteoblastic lineage in vitro. Runx2/Cbfal, Osx, BMP-2, BMP-6, and LMP-1 are involved in regulating osteoblastic differentiation of hADSCs, but BMP-4, BMP-7 are not. VD, but not DEX, induces expression of BMP-2 during osteogenic induction of hADSCs. VD is an ideal substitute for DEX for osteogenic induction of hADSCs.展开更多
The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functi...The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functions.展开更多
文摘目的 探讨妊娠期肝病患者外周血25-羟基维生素D_(3)[25-hydroxy vitamin D_(3),25(OH)D_(3)]、高迁移率蛋白1(high mobility group box 1,HMGB1)、微小RNA-122(microRNA-122,miR-122)表达与凝血功能的相关性。方法 选取2019年2月至2021年2月东营区人民医院收治的78例妊娠期肝病患者作为研究组,另选取同期78例健康孕妇作为对照组。比较两组25(OH)D_(3)、HMGB1、miR-122、凝血酶原时间(prothombin time,PT)、活化部分凝血活酶时间(activited partial thomboplastin time,APTT)、纤维蛋白原(fibrinogen,FIB)、天门冬氨酸氨基转移酶(aspartate aminotransferase,AST)、丙氨酸氨基转移酶(alanine aminotransferase,ALT)、γ-谷氨酰转肽酶(γ-glutamyltranspeptidase,GGT)水平,分析25(OH)D_(3)、HMGB1、miR-122与凝血功能指标的相关性,采用受试者工作特征(receiver operating characteristic,ROC)曲线评价25(OH)D_(3)、HMGB1、miR-122与凝血功能指标对妊娠期肝病的评估价值,比较两组患者的妊娠结局。结果 研究组患者25(OH)D_(3)[(54.17±9.47)nmol/Lvs(65.98±11.02)nmol/L]和FIB[(2.74±0.69)g/L vs (5.31±1.49)g/L]水平低于对照组,HMGB1[(8.52±1.93)μg/L vs (6.17±1.59)μg/L]、miR-122 (13.49±4.07vs 8.28±2.50)、PT[(15.84±5.13)s vs (12.69±3.46)s]、APTT[(40.12±7.41)s vs (32.19±8.03)s]、ALT[(22.49±3.56)U/L vs (8.31±2.64)U/L]、AST[(78.29±12.75)U/L vs (21.69±7.28)U/L]、GGT[(42.49±11.16)U/L vs (20.69±6.24)U/L]水平高于对照组,差异有统计学意义(P均<0.05)。妊娠期肝病患者25(OH)D_(3)、FIB与ALT、AST、GGT呈负相关,HMGB1、miR-122、PT、APTT与ALT、AST、GGT呈正相关(P均<0.05)。妊娠期肝病患者25(OH)D_(3)与PT、APTT呈负相关,与FIB呈正相关,HMGB1、miR-122与PT、APTT呈正相关,与FIB呈负相关(P均<0.05)。25(OH)D_(3)、HMGB1、miR-122与凝血功能指标联合评估妊娠期肝病的ROC曲线下面积为0.884;研究组患者不良妊娠结局发生率高于对照组[16.67%(13/78) vs 2.56%(2/78);χ^(2)=8.925,P=0.003]。结论 妊娠期肝病患者外周血25(OH)D_(3)、HMGB1、miR-122水平与凝血功能间存在良好线性关系,对患者外周血25(OH)D_(3)、HMGB1、miR-122水平及凝血功能进行检测在妊娠期肝病评估方面具有一定辅助作用。
文摘Our previous studies revealed that 1, 25-dihydroxyvrtamin D_3[1, 25 (OH)_2, D_3] and its two novel analogues (MC903 and EB1089) play an important role in the modulation of proliferation and differentiation of a newly established human megakaryoblastic leu
基金This study was supported by a grant from the National Natural Science Foundation of China (No. 30200319).
文摘Background Human adipose tissue-derived stromal cells （hADSCs） can be induced to differentiate along an osteoblastic lineage under stimulation of dexamethasone （DEX）. Recent studies, however, have questioned the efficacy of glucocorticoids such as DEX in mediating the osteogenesis process of skeletal progenitor cells and processed lipoaspirate cells. Is it possible to find a substitute for DEX？ Therefore, this study was designed to investigate osteogenic capacity and regulating mechanisms for osteoblastic differentiation of hADSCs by comparing osteogenic media （OM） containing either 1, 25-dihydroxyvitamin D3 （VD） or DEX and determine if VD was an ideal substitute for DEX as an induction agent for the osteogenesis of hADSCs. Methods Osteogenic differentiation of hADSCs was induced by osteogenic medium （OM） containing either 10 nmol/L VD or 100 nmol/L DEX. Differentiation of hADSCs into osteoblastic lineage was identified by alkaline phosphatase （ALP） staining, von Kossa staining, and reverse transcription-polymerase chain reaction assays for mRNA expression of osteogenesis-related genes such as type Ⅰ collagen （COL Ⅰ）, bone sialoprotein （BSP）, osteocalcin （OC）, bone morphogenetic protein （BMP）-2, BMP-4, BMP-6, BMP-7, runt-related transcription factor 2/core binding factor α1 （Runx2/Cbfal）, osterix （Osx）, and LIM mineralization protein- 1 （LMP- 1）. Results von Kossa staining revealed that the differentiated cells induced by both VD and DEX were mineralized in vitro. They also expressed osteoblast-related markers, such as ALP, COL Ⅰ, BSP, and OC. Runx2/Cbfal, Osx, BMP-6, and LMP-1 were upregulated during VD and DEX-induced hADSC osteoblastic differentiation, but BMP-4, BMP-7 were not. BMP-2 was only expressed in VD-induced differentiated cells. Conclusions VD or DEX-induced hADSCs differentiate toward the osteoblastic lineage in vitro. Runx2/Cbfal, Osx, BMP-2, BMP-6, and LMP-1 are involved in regulating osteoblastic differentiation of hADSCs, but BMP-4, BMP-7 are not. VD, but not DEX, induces expression of BMP-2 during osteogenic induction of hADSCs. VD is an ideal substitute for DEX for osteogenic induction of hADSCs.
文摘The synthesis of 14-epi-19-nor-22-oxa-1α,25（OH）2D3 5 was started from diol 8 via Fall＇s method, oxidation, epimerization, protection, coupling with the 19-nor-A-ring 7, and then deprotection of the hydroxyl functions.
