Results 21 to 30 of about 157,429 (315)

Analysis of alkaloids (indole alkaloids, isoquinoline alkaloids, tropane alkaloids)

, 2020
Alkaloids are a large cluster of molecules found in Mother Nature all over the world. They are all secondary compounds and collection of miscellaneous elements and biomolecules, derived from amino acids or from transamination. This diverse chemical group is categorized, based on the amino acids that deliver their nitrogen atom and part of their ...
Dey, Prasanta, Kundu, Amit, Kumar, Anoop, Gupta, Meenakshi, Lee, Byung Mu, Bhakta, Tejendra, Dash, Suvakanta, Kim, Hyung Sik   +7 more
openaire   +1 more source

Halo- and Thiocarbazomycins from Coral- and Coral Reef Sands-Derived Actinomycetes

Marine Drugs, 2022
Four actinomycete strains isolated from the coral Acropora austera and coral sand samples from the South China Sea, were found to produce a series of halogenated compounds baring similar ultraviolet absorption based on the analysis of HPLC and LC-MS. The
Qiaoling Wu, Hongjie Zhu, Changli Sun, Le Zhou, Huimin Wang, Songbiao Shi, Xinpeng Tian, Jianhua Ju   +7 more
doaj   +1 more source

Bioactive Natural Products of Marine Sponges from the Genus Hyrtios

Molecules, 2017
Marine sponges are known as a rich source for novel bioactive compounds with valuable pharmacological potential. One of the most predominant sponge genera is Hyrtios, reported to have various species such as Hyrtios erectus, Hyrtios reticulatus, Hyrtios ...
Nourhan Hisham Shady, Ebaa M. El-Hossary, Mostafa A. Fouad, Tobias A. M. Gulder, Mohamed Salah Kamel, Usama Ramadan Abdelmohsen   +5 more
doaj   +1 more source

Global Impact of Ergot Alkaloids

, 2022
"The Global Impact of Ergot Alkaloids" addresses the very broad topic of ergot alkaloids and the influence that they have on many facets of life. The content in this Special Issue pertains to research studying fungi, plants, livestock, and humans.

core   +1 more source

Oxoisoaporphines and Aporphines: Versatile Molecules with Anticancer Effects

Molecules, 2019
Cancer is a disease that involves impaired genome stability with a high mortality index globally. Since its discovery, many have searched for effective treatment, assessing different molecules for their anticancer activity.
Esteban Rodríguez-Arce, Patricio Cancino, Manuel Arias-Calderón, Paul Silva-Matus, Marianela Saldías   +4 more
doaj   +1 more source

Alkaloids with Their Protective Effects Against Aβ_25-35-Induced PC-12 Cell Injury from the Tubers of Pinellia pedatisecta Schott

Molecules
Seven new alkaloids [1, (±)-2, (±)-3, 4, and 5] and one new natural product (6), along with eight known analogues, were isolated from the tubers of Pinellia pedatisecta Schott. Their structures were determined by a comprehensive analysis of spectroscopic
Xu Chen, Yangang Cao, Kaili Ye, Yanling Liu, Fangge Chi, Ying Niu, Di Lu, Bingxian Zhao, Lan Chen, Xiaoke Zheng, Weisheng Feng   +10 more
doaj   +1 more source

Soil-borne microorganisms and soil-type affect pyrrolizidine alkaloids in Jacobaea vulgaris

, 2009
Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris.
Veen, J.A., van, Klinkhamer, P.G.L., Joosten, L., Mulder, P.P.J.   +3 more
core   +1 more source

The Occurrence and Bioactivities of Amaryllidaceae Alkaloids from Plants: A Taxonomy-Guided Genera-Wide Review

Plants
The distribution of Amaryllidaceae alkaloids, with a focus on their chemodiversity, has been reported previously, but not at a genera-wide diversity level.
G. David Lin, Pinky Vishwakarma, Paul N. Smith, Rachel W. Li   +3 more
doaj   +1 more source

Current Knowledge and Perspectives of Pyrrolizidine Alkaloids in Pharmacological Applications: A Mini-Review

Molecules, 2021
Pyrrolizidine alkaloids (PAs) are a widespread group of secondary metabolites in plants. PAs are notorious for their acute hepatotoxicity, genotoxicity and neurological damage to humans and animals.
Xianqin Wei, Weibin Ruan, Klaas Vrieling
doaj   +1 more source

Isolation and X-ray crystal structure of tetrahydroisoquinoline alkaloids from Calycotome villosa Subsp. intermedias

, 2004
Two tetrahydroisoquinoline alkaloids were extracted from the alkaloid fraction of a methanol extract of the seeds of Calycotome Villosa Subsp. intermedia.
Bolte, Michael, El Alami, Rachid, El Bali, Brahim, Messouri, Ibtissam, Bouktaib, Mohamed, Rachid El Alami, Brahim El Bali, Michael Bolte, El Antri, Ali, Mohamed Bouktaib, Ibtissam Messouri, Lachkar, Mohammed, Mohammed Lachkar, Ali El Antri   +13 more
core   +1 more source