Enzymatic inhibitory activity and trypanocidal effects of extracts and compounds from Siphoneugena densiflora O. Berg and Vitex polygama Cham.

نویسندگان

  • Margareth B C Gallo
  • Anna Sylvia F Marques
  • Paulo C Vieira
  • Maria Fátima das G F da Silva
  • João B Fernandes
  • Márcio Silva
  • Rafael V Guido
  • Glaucius Oliva
  • Otávio H Thiemann
  • Sérgio Albuquerque
  • Alan H Fairlamb
چکیده

Hexanic, methanolic, and hydroalcoholic extracts, and 34 isolated compounds from Vitex polygama Cham. (Lamiaceae, formely Verbenaceae) and Siphoneugena densiflora O. Berg (Myrtaceae) were screened for their trypanocidal effects on bloodstream forms of Trypanosoma cruzi and T brucei, as well as for their enzymatic inhibitory activities on glycosomal glyceraldehyde-3-phosphate dehydrogenase (gGAPDH) and trypanothione reductase (TR) enzymes from T cruzi and adeninephosphoribosyl transferase (APRT) enzyme from Leishmania tarentolae. In general, polar extracts displayed strong effects and some of the tested compounds have shown good results in comparison to positive controls of the bioassays.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of the in vitro trypanocidal activity of methylated flavonoid constituents of Vitex simplicifolia leaves

BACKGROUND Trypanosomiasis is a neglected tropical disease with complex clinical manifestations, tedious diagnosis, and difficult treatments. The drugs available for the treatment of this endemic disease are old, expensive, and associated with other problems including safety and drug resistant parasites. Therefore, there is an urgent need for the development of new, effective, cheap, and safe d...

متن کامل

New Natural Products from Siphoneugena densiflora Berg (Myrtaceae) and their Chemotaxonomic Significance

Siphoneugena Berg (Myrtaceae) é um pequeno gênero eugenióide segregado de Eugenia por Berg. A investigação fitoquímica de Siphoneugena densiflora foi realizada com o objetivo de se descobrir metabólitos secundários que possam ser considerados marcadores quimiotaxonômicos e auxiliar na distinção entre os dois gêneros. Cinco taninos hidrolisáveis inéditos foram isolados do extrato metanólico da c...

متن کامل

Trypanocidal activity of some endemic species of Satureja in Iran

Trypanosoma cruzi, a hemoflagellate protozoan (family Trypanosomatidae), is the ethiological agent of Chagas disease, which is affecting 16-18 million people, with more than 100 million exposed to the risk of infection. Higher plants are a potential source of new drugs to improve the treatment of Chagase disease. Until recently, Rutacea, Meliaceae, Simaroubaceae and Burceraceae families have be...

متن کامل

Trypanocidal activity of some endemic species of Satureja in Iran

Trypanosoma cruzi, a hemoflagellate protozoan (family Trypanosomatidae), is the ethiological agent of Chagas disease, which is affecting 16-18 million people, with more than 100 million exposed to the risk of infection. Higher plants are a potential source of new drugs to improve the treatment of Chagase disease. Until recently, Rutacea, Meliaceae, Simaroubaceae and Burceraceae families have be...

متن کامل

Phenolic Content, Antioxidant Effects and Tyrosinase Inhibitory Activity of Extract of Some Stachys Species from Iran

Background: Given the importance of Stachys genus in Iran and their significant biological activity, we collected three species of this plant: St. aucheri Benth., Stachys benthamiana Boiss and St. inflata Benth. from different regions of Iran. We examined the free radical scavenging potential, total phenol content and tyrosinase inhibitory activity of their methanol, methanol 80% and dichlorome...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Zeitschrift fur Naturforschung. C, Journal of biosciences

دوره 63 5-6  شماره 

صفحات  -

تاریخ انتشار 2008