Sunday, Aug 12, 2007

sewak&future-book

(27 downloads)

Download this episode (5 min)  
aslamolikom
خواطر مهمة حول ثقافة الأدويةالكيماوية التي نبتت في غياب ثقافةالتوحيد والأخلاق والإيمان بالغيب وتعليق على كتاب الأدوية والمستقبل
بعنوان السواك والمستقبل
http://journals.prous.com/journals/servlet/xmlxsl/pk_journals.xml_summary_pr?p_JournalId=2&p_RefId=853766&p_IsPs=N

Antibacterial activity in plants used as chewing sticks in Africa
Ndukwe, K.C., Lamikanra, A., Okeke, I.N.

In Africa, chewing sticks are the most common means of maintaining oral hygiene, and roots, stems and twigs of numerous plants are employed for this purpose. Chewing sticks are recommended for oral hygiene by the World Health Organization, and some of them, or their extracts, are also used in the ethnomedical treatment of oral infections. Primary screens have demonstrated that extracts from many chewing sticks have antimicrobial activity against a broad spectrum of microorganisms, including those commonly implicated in orofacial infections. Some chewing stick extracts have additional biological activities. Preparation, extraction and antimicrobial screening methodologies are largely unstandardized and bioactivity-guided fractionation has only been conducted on a few chewing stick extracts. It is therefore highly likely that many chewing sticks contain secondary metabolites with as yet unreported antimicrobial activity. Antimicrobial principles that have been identified include novel flavenoid compounds and alkaloids. Chewing sticks offer considerable and underexploited potential as sources of new antimicrobial backbones.

Posted by Rami Diabi at 11:27 PM |   

<< Home