目的了解老年髋部骨折患者术后血骨转换生化标志物的变化规律,并比较股骨颈骨折髋关节置换和股骨粗隆间骨折髓内钉内固定术后血骨转换标志物的异同。方法纳入髋部骨折患者50例,其中女性37例,男性13例;股骨粗隆间骨折髓内钉内固定21例,...目的了解老年髋部骨折患者术后血骨转换生化标志物的变化规律,并比较股骨颈骨折髋关节置换和股骨粗隆间骨折髓内钉内固定术后血骨转换标志物的异同。方法纳入髋部骨折患者50例,其中女性37例,男性13例;股骨粗隆间骨折髓内钉内固定21例,股骨颈骨折髋关节置换29例;明确骨折日期、手术日期,检测术前、术后血清1型前胶原氨基末端前肽(N-propeptide of type 1 collagen,P1NP)、1型胶原羧基末端肽交联(C-terminal crosslinking telopeptides of type 1 collagen,CTX)、骨钙素(osteocalcin,OC)、25羟维生素D(25 hydroxy vitamin D,25OHD)的水平以及骨密度。结果老年髋部骨折术前两种髋部骨折的骨转换标志物均未见明显差异,骨折术后30~60 d时骨转换标记物均有明显上升,P1NP、CTX及OC分别由术前的41.9(29.6,44.9)μg/L、0.57(0.38,0.67)μg/L和13.9(10.5,14.3)μg/L上升至134.0(110.7,57.0)μg/L、0.84(0.69,1.00)μg/L和21.6(16.8,28.6)μg/L;80~120 d时P1NP和CTX已经下降,分别下降至102.0(72.3,126.8)μg/L和0.69(0.55,0.82)μg/L;OC在80~120 d时仍为上升趋势,为24.3(18.6,26.5)μg/L。老年髋部骨折患者术后P1NP变化性别差异无统计学意义(P=0.871),术后30~60 d P1NP比基线升高3~4倍,80~120 d时比基线升高2~3倍。老年髋部骨折患者术后P1NP/CTX比值的变化骨折类型差异无统计学意义(P=0.468),两种典型骨折术后30~60 d时P1NP/CTX比基线升高2.5倍,80~120 d比基线升高2倍。结论老年髋部骨折的骨转换标志物变化不同并受许多因素影响,但观察P1NP不必考虑性别不同,观察P1NP/CTX比值可不必顾虑骨折类型术式之间的差异。展开更多
[Objective] The study aimed at analysing water pollution of four rivers in coastal wetland of Yellow River estuary. [Method] Taking four seriously polluted rivers (Guangli River, Shenxian Ditch, Tiao River and Chao Ri...[Objective] The study aimed at analysing water pollution of four rivers in coastal wetland of Yellow River estuary. [Method] Taking four seriously polluted rivers (Guangli River, Shenxian Ditch, Tiao River and Chao River) in coastal wetland of Yellow River estuary as study objects, water samples were collected from the four rivers in May (dry period), August (wet period) and November (normal period) in 2009 and 2010 respectively, then pollution indices like nutritive salts, COD, chlorophyll-a, petroleum, etc. were measured. Afterwards, the status quo of water pollution was assessed based on Nemero index and comprehensive trophic level index (TLI), so as to find out the integral status quo of water quality of wetland rivers and damages to aquatic ecological environment. [Result] On the whole, water pollution of four rivers in coastal wetland of Yellow River estuary was serious, in the eutrophication state, and the main pollutants were TN, TP, NH+4-N and petroleum. In addition, excessive N and P in the four rivers resulted in water eutrophication of Bohai Bay, so further leading to ride tide, which destroyed the coastal ecological environment of Bohai Sea. Moreover, compared with historical data, water pollution by nitrogen and phosphorus became more serious, while there was no obvious aggravation in the water pollution by petroleum. In a word, water pollution wasn’t optimistic on the whole. [Conclusion] The research could provide theoretical bases for the protection and utilization of river water in coastal wetland of Yellow River estuary and its coastal sea area.展开更多
文摘目的了解老年髋部骨折患者术后血骨转换生化标志物的变化规律,并比较股骨颈骨折髋关节置换和股骨粗隆间骨折髓内钉内固定术后血骨转换标志物的异同。方法纳入髋部骨折患者50例,其中女性37例,男性13例;股骨粗隆间骨折髓内钉内固定21例,股骨颈骨折髋关节置换29例;明确骨折日期、手术日期,检测术前、术后血清1型前胶原氨基末端前肽(N-propeptide of type 1 collagen,P1NP)、1型胶原羧基末端肽交联(C-terminal crosslinking telopeptides of type 1 collagen,CTX)、骨钙素(osteocalcin,OC)、25羟维生素D(25 hydroxy vitamin D,25OHD)的水平以及骨密度。结果老年髋部骨折术前两种髋部骨折的骨转换标志物均未见明显差异,骨折术后30~60 d时骨转换标记物均有明显上升,P1NP、CTX及OC分别由术前的41.9(29.6,44.9)μg/L、0.57(0.38,0.67)μg/L和13.9(10.5,14.3)μg/L上升至134.0(110.7,57.0)μg/L、0.84(0.69,1.00)μg/L和21.6(16.8,28.6)μg/L;80~120 d时P1NP和CTX已经下降,分别下降至102.0(72.3,126.8)μg/L和0.69(0.55,0.82)μg/L;OC在80~120 d时仍为上升趋势,为24.3(18.6,26.5)μg/L。老年髋部骨折患者术后P1NP变化性别差异无统计学意义(P=0.871),术后30~60 d P1NP比基线升高3~4倍,80~120 d时比基线升高2~3倍。老年髋部骨折患者术后P1NP/CTX比值的变化骨折类型差异无统计学意义(P=0.468),两种典型骨折术后30~60 d时P1NP/CTX比基线升高2.5倍,80~120 d比基线升高2倍。结论老年髋部骨折的骨转换标志物变化不同并受许多因素影响,但观察P1NP不必考虑性别不同,观察P1NP/CTX比值可不必顾虑骨折类型术式之间的差异。
基金Supported by Scientific Research Project of National Ocean Public Welfare (200805070,200905009-5,200905020)
文摘[Objective] The study aimed at analysing water pollution of four rivers in coastal wetland of Yellow River estuary. [Method] Taking four seriously polluted rivers (Guangli River, Shenxian Ditch, Tiao River and Chao River) in coastal wetland of Yellow River estuary as study objects, water samples were collected from the four rivers in May (dry period), August (wet period) and November (normal period) in 2009 and 2010 respectively, then pollution indices like nutritive salts, COD, chlorophyll-a, petroleum, etc. were measured. Afterwards, the status quo of water pollution was assessed based on Nemero index and comprehensive trophic level index (TLI), so as to find out the integral status quo of water quality of wetland rivers and damages to aquatic ecological environment. [Result] On the whole, water pollution of four rivers in coastal wetland of Yellow River estuary was serious, in the eutrophication state, and the main pollutants were TN, TP, NH+4-N and petroleum. In addition, excessive N and P in the four rivers resulted in water eutrophication of Bohai Bay, so further leading to ride tide, which destroyed the coastal ecological environment of Bohai Sea. Moreover, compared with historical data, water pollution by nitrogen and phosphorus became more serious, while there was no obvious aggravation in the water pollution by petroleum. In a word, water pollution wasn’t optimistic on the whole. [Conclusion] The research could provide theoretical bases for the protection and utilization of river water in coastal wetland of Yellow River estuary and its coastal sea area.
