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Synthesis of potential radioprotecti...

Wang, Xiping.

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Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae)./
作者:	Wang, Xiping.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 1993,
面頁冊數:	215 p.
附註:	Source: Dissertation Abstracts International, Volume: 54-04, Section: B, page: 1839.
Contained By:	Dissertation Abstracts International54-04B.
標題:	Medical imaging. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9323901

Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae).
Wang, Xiping.

Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae). - Ann Arbor : ProQuest Dissertations & Theses, 1993 - 215 p.

Source: Dissertation Abstracts International, Volume: 54-04, Section: B, page: 1839.

Thesis (Ph.D.)--Massachusetts College of Pharmacy and Health Sciences, 1993.

The ethanolic extracts of some Chinese traditional herb drugs, reported by Hong-Fu Wang et al. in China, could inhibit platelet aggregation as well as protect against radiation damage in mice, rat and rabbits. The inhibitory effects of the extracts of five Chinese drugs on the rate of platelet aggregation were observed in both in vitro and in vivo tests, averaging 23-53% in vitro and 46-69% in vivo. Antiradiation tests on mice vs. 7.5-8.0 Gy of $\gamma$-radiation, using the herb drug extracts as protective agents, showed increasing survival rates by 8-50%.Subjects--Topical Terms:

3172799
Medical imaging.

Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae).
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100 1 $a Wang, Xiping. $3 3285235
245 1 0 $a Synthesis of potential radioprotective components from Chinese herb drug Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort., Umbelliferae).
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1993
300 $a 215 p.
500 $a Source: Dissertation Abstracts International, Volume: 54-04, Section: B, page: 1839.
500 $a Adviser: William O. Foye.
502 $a Thesis (Ph.D.)--Massachusetts College of Pharmacy and Health Sciences, 1993.
520 $a The ethanolic extracts of some Chinese traditional herb drugs, reported by Hong-Fu Wang et al. in China, could inhibit platelet aggregation as well as protect against radiation damage in mice, rat and rabbits. The inhibitory effects of the extracts of five Chinese drugs on the rate of platelet aggregation were observed in both in vitro and in vivo tests, averaging 23-53% in vitro and 46-69% in vivo. Antiradiation tests on mice vs. 7.5-8.0 Gy of $\gamma$-radiation, using the herb drug extracts as protective agents, showed increasing survival rates by 8-50%.
520 $a Based on Hong-Fu Wang's report, a search for the active constituents of these herb drugs in inhibiting platelet aggregation and protecting animals against radiation damage was started. In this research program, a Chinese traditional drug, Rhizoma Chuanxiong (rhizome of Ligusticum chuanxiong Hort.) was chosen. Three types of chemicals present in Rhizoma Chuanxiong, appeared promising for testing: 1-(5-hydroxymethyl-2-furyl)-9H-pyrido-(3,4-b)indole, 4-hydroxyl-3-butylidenephthalide and 5-hydroxyl-3-butylidenephthalide, and 4-hydroxyl-3-methoxycinnamyl 4-hydroxyl-3-methoxycinnamate. A total of 56 compounds of these derivatives has been synthesized and 30 were synthesized for the first time. The 30 compounds are: 1-phenyl-9H-pyrido-(3,4-b)indole, 1-(2-pyridyl)-9H-pyrido-(3,4-b)indole, 1-(5-methyl-2-furyl)-1,2,3,4-tetrahydro-9H-pyrido-(3,4-b)indole, 1-(5-methyl-2-furyl)-9H-pyrido-(3,4-b)indole, 1-$(5 $-hydroxymethyl-2-furyl)-9H-pyrido-(3,4-b)indole, 1-(2-thienyl)-1,2,3,4-tetrahydro-9H-pyrido-(3,4-b)indole, 1-(2-thienyl)-9H-pyrido-(3,4-b)indole, 1-(5-methyl-2-thienyl)-1,2,3,4-tetrahydro-9H-pyrido-$(3,4$-b)indole and 1-(5-methyl-2-thienyl)-9H-pyrido-$ (3,4$-b)indole; 4-methoxy-3-propylphthalide, 4-hydroxy-3-propylphthalide, (Z)-4-methoxy-3-propylidenephthalide, 5-methoxy-3-propylphthalide, 5-hydroxy-3-propylphthalide, (Z)-5-methoxy-3-propylidenephthalide, 5-methoxy-3-butylphthalide, 5-hydroxy-3-butylphthalide, (Z)-5-methoxy-3-butylidenephthalide; 2,3-dimethoxycinnamyl alcohol, 2,5-dimethoxycinnamyl alcohol, 3-isopropoxycinnamic acid, methyl 3-isopropoxycinnamate, 3-isopropoxycinnamyl alcohol, 4-isopropoxycinnamic acid, methyl 4-isopropoxycinnamate, 4-isopropoxycinnamyl alcohol, trans-2,3-dimethoxycinnamyl, trans-2,3-dimethoxycinnamate, trans-2,5-dimethoxycinnamyl trans-2,5-dimethoxycinnamate, trans-3-isopropoxycinnamyl trans-3-isopropoxycinnamate, and trans-4-isopropoxycinnamyl trans-4-isopropoxycinnamate. The structure elucidation of these compounds was based o n IR, $\sp1$H NMR and elemental analysis.
520 $a From this research program, a very mild dehydrogenation method was developed. It was by using 2,3-dichloro-5,6-dicyanobenzoquinone in acetonitrile at ice bath temperature to dehydrogenate 1-(5-hydroxymethyl-2-furyl)-1,2,3,4-tetrahydro-$ 9$H-pyrido-(3,4-b)indole into 1-(5-hydroxymethyl-2-furyl)-9H-pyrido-(3,4-b)indole.
520 $a This project showed for the first time that harmanoid alkaloids have the activity of inhibition of platelet aggregation. The tested compounds increased the inhibitory rate of platelet aggregation by 4 to 23 times that of aspirin. These results aid in establishing a relation between radiation protection in animals and prevention of platelet hyperaggregation.
590 $a School code: 0308.
650 4 $a Medical imaging. $3 3172799
650 4 $a Organic chemistry. $3 523952
650 4 $a Pharmaceutical sciences. $3 3173021
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690 $a 0490
690 $a 0572
710 2 $a Massachusetts College of Pharmacy and Health Sciences. $3 1903757
773 0 $t Dissertation Abstracts International $g 54-04B.
790 $a 0308
791 $a Ph.D.
792 $a 1993
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9323901