Results 1 to 10 of about 157,429 (315)

Anti-protozoal activity of aporphine and protoberberine alkaloids from Annickia kummeriae (Engl. & Diels) Setten & Maas (Annonaceae) [PDF]

, 2013
BACKGROUND: Malaria, trypanosomiasis and leishmaniasis have an overwhelming impact in the poorest countries in the world due to their prevalence, virulence and drug resistance ability.
Swaleh, S. M., Hassanali, Ahmed, Ndiege, Isaiah O, Brun, R., Dalsgaard, Petur, Ahmed Hassanali, Ndiege, I. O., Malebo, Hamisi M, Monical Cal, Petur Dalsgaard, Maurice O Omolo, Hassanali, A., Wenzler, T., Sequin, U., Hamburger, M., Wenzler, Tanja, Tanja Wenzler, Omolo, M. O., Omolo, Maurice O, Hamisi M Malebo, Dalsgaard, P., Cal, M., Häussinger, Daniel, Daniel Häussinger, Häussinger, D., Hamburger, Matthias, Brun, Reto, Sauda M Swaleh, Malebo, H. M., Séquin, Urs, Isaiah O Ndiege, Reto Brun, Cal, Monical, Swaleh, Sauda M, Urs Séquin, Matthias Hamburger   +35 more
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Alkaloids of Marine Macroalgae [PDF]

, 2013
Marine alkaloids have their origins from marine organisms including marine macroalgae. On the other hand, some marine algal alkaloids such as phenylethylamine derivatives were previously isolated from terrestrial plants.
Burak Coban, Hüseyin Erdugan, Kasım Cemal Güven, Kaleağasioğlu, Ferda, Kasim Cemal Güven, Erdugan, Hüseyin, Ekrem Sezik, Coban, Burak, Sezik, Ekrem, Ferda Kaleağasıoğlu, Güven, Kasım Cemal   +10 more
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A NEW ALKALOID ISOLATED FROM Tabernaemontana hystrix Steud. (Apocynaceae) AND THE ANTIPROLIFERATIVE POTENTIAL OF THE ROOT BARK AGAINST HUMAN CERVICAL CANCER (HeLa) [PDF]

Química Nova
Cervical cancer is the fourth most common cancer in the world and the third most common in Brazilian women. The search for compounds with anticancer potential is important, since cancer is a public health problem, and some drugs may lead to side effects.
Thalya S. R. Nogueira, Thiago C. Sardou, Julio Cesar Thurler Júnior, Gabriela Dinis, Vinícius D’avila B. Pascoal, Lucas S. Abreu, Raimundo Braz Filho, Aislan C. R. F. Pascoal, Ivo José C. Vieira   +8 more
doaj   +1 more source

Endophytic fungi: hidden treasure chest of antimicrobial metabolites interrelationship of endophytes and metabolites

Frontiers in Microbiology, 2023
Endophytic fungi comprise host-associated fungal communities which thrive within the tissues of host plants and produce a diverse range of secondary metabolites with various bioactive attributes.
Priyanka Jha, Tamanna Kaur, Ishita Chhabra, Avirup Panja, Sushreeta Paul, Vijay Kumar, Tabarak Malik   +6 more
doaj   +1 more source

Marine pyridoacridine, pyridoacridone and pyrroloacridine alkaloids

, 2023
The families of pyridoacridine, pyridoacridone, and pyrroloacridine alkaloids are fascinating classes of natural products that have attracted the attention of chemists for over 80 years.
Cadelis, Melissa M, Copp, Brent R
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Polycitorols A and B, New Tricyclic Alkaloids from an Ascidian [PDF]

, 2005
Two new tricyclic alkaloids, polycitorols A (1) and B (2) have been isolated along with the known lepadiformine (3) from a marine ascidian of the family Polycitoridae.
Setiawan, Andi, Junichi Tanaka, Andi Setiawan, Tatsuo Higa, Rachmaniar Rachmat, Higa, Tatsuo, Issa, Hamad H., Hamad H. Issa, Agus Trianto, Trianto, Agus, Tanaka, Junichi, Rachmat, Rachmaniar   +11 more
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Bio-Guided Assay of Ephedra foeminea Forssk Extracts and Anticancer Activities: In Vivo, In Vitro, and In Silico Evaluations

Molecules, 2023
Ephedra is one of the oldest known medicinal plants and the largest genera of the Ephedraceae family. In vivo antitumor evaluation of Ephedra foeminea revealed that ethyl acetate (EtOAc) was the most bioactive fraction.
Jilan A. Nazeam, Sylvia A. Boshra, Esraa Z. Mohammed, Heba A. El Gizawy   +3 more
doaj   +1 more source

Strictosidine, the common precursor for monoterpenoid indole alkaloids with 3 α and 3 β configuration [PDF]

, 1978
Recently we reported that strictosidine (l> is the key intermediate in the formation of the three classes (ASDidOf3DeIm5, Iboga, Corynanthe) of monoterpenoid indole alkaloids In Catharanthus roseus and a variety of other plant species in cell culture ...
Martina Rueffer, Rüffer, Martina, Nagakura, Naotaka, Zenk, Meinhart H., Meinhart H. Zenk, Naotaka Nagakura   +5 more
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Structures and Biological Activities of Alkaloids Produced by Mushrooms, a Fungal Subgroup

Biomolecules, 2022
Alkaloids are a wide family of basic N-containing natural products, whose research has revealed bioactive compounds of pharmacological interest. Studies on these compounds have focused more attention on those produced by plants, although other types of ...
Jesús G. Zorrilla, Antonio Evidente
doaj   +1 more source

The relationship of physico-chemical properties and structure to the differential antiplasmodial activity of the cinchona alkaloids. [PDF]

, 2003
BACKGROUND: The 8-amino and 9-hydroxy substituents of antimalarial cinchona alkaloids have the erythro orientation while their inactive 9-epimers are threo.
Meyer David J, Adagu Ipemida S, Adagu, Ipemida S, Warhurst David C, Sylvia Y Lee, Meyer, David J, David C Warhurst, Craig John C, David J Meyer, Warhurst, David C, Lee, Sylvia Y, Ipemida S Adagu, Craig, John C, John C Craig, Lee Sylvia Y   +14 more
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