维生素D防治小儿佝偻病临床分析
...钙磷减少和低钙血症,以致甲状旁腺功能代偿性的亢进,PTH分泌增加,使钙从骨骼中释放出来,以维持血清钙浓度水平接近正常,但同时PTH也抑制了肾小管重吸收磷,导致机体钙磷代谢严重失调,临床上即出现一系列的佝偻病症...
医源资料库;在线期刊;中华医学研究杂志;2011年第11卷第5期骨质疏松疾病的理想靶点
...,双磷酸盐会削弱特立帕肽(Teriparatide;甲状旁腺激素〔PTH〕的基因重组产品)的疗效,而特立帕肽是FDA(美国食品药品监督管理局)唯一批准的骨合成类药物〔10〕。PTH促进骨生成的机制似乎牵涉到破骨细胞,并直接影响定向...
医药经济;生物技术;技术要闻Factorsassociatedwithcalciumabsorptionefficiencyinpre-andperimenopausalwomen
...ngbloodsampleswerecollectedformeasurementofserumcalcium,parathyroidhormone(PTH),and1,25dihydroxyvitaminD[1,25(OH)2D].SerumcalciumwasmeasuredbyusingatomicflamespectroscopyandintactPTH(iPTH)wasmeasuredbyusinga2-siteimmunochemiluminometricmethod(EndocrineSciences,Inc,CalabasasHills,CA).Serum1,25(OH)2Dw...
医源资料库;在线期刊;美国临床营养学杂志;2000年72卷第2期原发性甲状旁腺功能亢进症
...别正常与功能亢进的甲状旁腺。甲状旁腺分泌甲状腺素(PTH)。甲状旁腺有以下的作用:1.促进近侧肾小管对钙的重吸收,使尿钙减少,血钙增加。2.抑制近侧肾小管对磷的吸收,使尿磷增加,血磷减少。3.促进破骨细胞的脱钙作...
求医问药;疾病大全;腰部Prevalenceandsignificanceoflow25-hydroxyvitaminDconcentrationsinhealthysubjectsinDelhi
...edserum25(OH)D,1,25-dihydroxyvitaminD[1,25(OH)2D],intactparathyroidhormone(PTH-i),totalcalcium,inorganicphosphate,andalkalinephosphataseactivityin6groupsofhealthysubjectsfromDelhiwhowereselectedonthebasisofdifferentiatingfeaturesrelevanttovitaminDstatus.SUBJECTSANDMETHODSAfterweobtainedinformedconse...
医源资料库;在线期刊;美国临床营养学杂志;2000年72卷第2期Bonemineraldensityandbonemarkersinpatientswitharecentlow-energyfracture:effectof1yoftreatmentwithcalciumandvitaminD
...UpGotest.Serumconcentrationsof25-hydroxycholecalciferol,parathyroidhormone(PTH),telepeptideoftypeIcollagen(ICTP),osteocalcin,andN-terminalpropeptideofcollagentypeIweremeasured.Results:Atotalof122patientswereincluded(84%women;Conclusions:A1-yinterventionwithcalciumandvitaminDreducedboneturnover,signi...
医源资料库;在线期刊;美国临床营养学杂志;2007年86卷第1期甲状旁腺腺瘤的治疗
...升高等呈甲状旁腺危象的表现,再测血清甲状旁腺激素(PTH)值为1734pg/L(正常值为12.72pg/L),核素扫描为左甲状腺冷结节,颈部CT及超声均提示为左甲状腺囊肿伴气管移位,术中见甲状腺左叶下极后方肿块8.0cm×7.0cm大小,切...
医源资料库;在线期刊;中华现代外科学杂志;2008年第5卷第9期Prevalenceandfunctionalsignificanceof25-hydroxyvitaminDdeficiencyandvitaminDreceptorgenepolymorphismsinAsianIndians
...itaminD[25(OH)D]deficiency,vitaminDreceptor(VDR)gene,andparathyroidhormone(PTH)genepolymorphismsinrelationtobonemineraldensity(BMD)inurbanAsianIndians.Design:Serumtotalcalcium,inorganicphosphorus,alkalinephosphatase,25(OH)D,intactPTH,andBMDatlumbarspine,proximalfemur,andforearmweremeasuredin105adult...
医源资料库;在线期刊;美国临床营养学杂志;2006年83卷第6期Fruitandvegetableintakesareanindependentpredictorofbonesizeinearlypubertalchildren
...upofearlypubertalgirls.Asecondaryaimwastoevaluatewhetherparathyroidhormone(PTH),25-hydroxyvitaminD[25(OH)D],andmarkersofboneformationandresorptionwererelatedtofruitandvegetableintakes.SUBJECTSANDMETHODSSubjectsFifty-sixwhitefemaleswererecruitedtoparticipateinarandomizedcalciumsupplementationtrialthr...
医源资料库;在线期刊;美国临床营养学杂志;2004年79卷第2期参考资料
...的原理是从N端开始,逐步降解。将肽先与异硫氰酸苯酯(PTH试剂)在pH8-9条件下作用,肽的NH2末端接到异硫氰酸苯酯的C原子上生成苯异硫甲氨酰肽,简称PTC肽,在强酸作用下,可使靠近PTC基的氨基酸环化,肽键断裂形成苯氨基噻...
医源资料库;医源图书馆;教材类;生物化学与分子生物学