Protein kinase a is camp - dependent kinase, one of the most important signal transduction pathways, plays a pivotal role in growth, differentiation, tumor occur, cell cycle control, etc. pka activators such as camp, 8 - br - camp or phosphodiesterase ( pde ) inhibitor isomethyl butyl xanthine ( imbx ) or purified pka catalytic subunit all can inhibit germinal vesicle breakdown ( gvbd ) and meiotic maturation in mouse oocytes, also in xenopus oocytes
蛋白激酶a （ proteinkinasea ， pka ）是依賴于camp的絲蘇氨酸蛋白激酶，是重要的信號傳導途徑之一，廣泛參與許多生命過程，包括生長、分化、腫瘤發生、細胞凋亡、細胞周期調控等。以小鼠卵母細胞為實驗對象，給予pka激動劑camp 、 8 - br - camp或磷酸
二酯酶抑制劑imbx （ isomethylbutylxanthine ）均可抑制小鼠卵母細胞的胚泡破裂及減數分裂成熟。
In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac
為尋找羥乙基甲硝唑的替代物，分別採用酸酐法酰氯法或dcc法，將氨基羧酸與羥乙基甲硝唑反應，得到5個親水性不同的單
酯或
二酯，用ms譜確證了次氨基三乙酸與乙酸酐反應的中間物，並對得到的
酯的
A series of copoly ( olefin - co - ester ) s were synthesized and characterized by starting from cyclooctene, cyclooctadiene or nobornene with ethanediol di ( 10 - undecenoate ) via metathesis copolymerization and hydrogenation reaction
摘要通過環辛烯、環辛
二烯和降冰片烯-十一烯酸乙
二醇
二酯的易位共聚合及氫化反應合成了烯烴共聚
酯。
Calmodulin - dependent cyclic nucleotide phophodiesterase was prepared from bovine brain by two - step deae - cellulose column chromatography
摘要通過兩次離子交換柱層析，從牛腦中制備鈣調素依賴性的環核苷酸磷酸
二酯酶。
Standard test method for determining inherent viscosity of poly ethylene terephthalate by glass capillary viscometer
用玻璃毛細管粘度計測定聚對苯
二甲酸乙
二酯特性粘度的標準試驗方法
Processed photographic film for archival records - specifications for silver - gelatin type on poly ethylene terephthalate base
檔案記錄用已沖洗攝影膠片.第2部分:聚對苯
二甲酸乙
二酯基底上的銀明膠型規范
Discussing the significance of foundation pit supporting optimizing design
配合物催化磷酸
二酯水解的研究
Hydrolysis of phosphate diester catalyzed by 2co 2 3 h2o complex in brij35 micellar solu tion
配合物催化磷酸
二酯水解的研究
Glycolipids ( glycosyldiacylglycerols ) are diacylglycerols with a sugar attached to the unesterified hydroxyl group
糖
酯類物質是由甘油
二酯和糖結合未
酯化的羥基形成的。
" the concept is that systemic sclerosis, which is a severe disease characterized by systemic fibrosis, is at the beginning mainly a vascular disease, and we hypothesize that using major vascular drugs ( calcium channel blockers, endothelin antagonists, prostacyclins, phosphodiesterase inhibitors, etc. ) from the beginning and at appropriate dosage may interfere with the fibrotic process which seems secondary, " dr
「從概念上講，系統性硬化是一種以系統性的纖維化變性為特徵的嚴重疾病，早期主要表現在血管性的病變，因此我們推測早期、適量地應用主要作用於血管的藥物（如鈣離子阻斷劑，內皮素拮抗劑，前列環素，磷酸
二酯酶抑制劑等）可能可以干預似乎是繼發發生的纖維化過程。 」
" the concept is that systemic sclerosis, which is a seere disease characterized by systemic fibrosis, is at the beginning mainly a ascular disease, and we hypothesize that using major ascular drugs ( calcium channel blockers, endothelin antagonists, prostacyclins, phosphodiesterase inhibitors, etc. ) from the beginning and at appropriate dosage may interfere with the fibrotic process which seems secondary, " dr
「從概念上講，系統性硬化是一種以系統性的纖維化變性為特徵的嚴重疾病，早期主要表現在血管性的病變，因此我們推測早期、適量地應用主要作用於血管的藥物（如鈣離子阻斷劑，內皮素拮抗劑，前列環素，磷酸
二酯酶抑制劑等）可能可以干預似乎是繼發發生的纖維化過程。 」
Vitamin b3 : be beneficial to skin absorb vitamin c. help whitens and moisturizes your skin
維生素b3 ：促進血液循環，幫助核苷酸磷酸
二酯酶的合成，利於維c全面吸收，抑制黑色素生成，達到美白作用
Synthesis and characterization of hexamethylene - glycol diisobutyrate
二異丁酸己
二酯的合成與表徵
O was identified by mass spectrum. out of three diesters two are novel
3個
二酯中，有2個未見文獻報道。
Second esterifing reaction system
二酯反應系統
Ultrastructural effect of octadecanoic acid - 3, 4 - furanodiyl ester on sperm in male mice
呋喃
二酯對小鼠精子超微結構的影響
Study of catalytic activity of antimony compounds in the polycondensation of bis - hydroxyethyl terephthalate
對苯二甲酸乙二酯縮聚所用銻系催化劑催化活性研究
