Results 81 to 90 of about 52,814 (284)

Chemical constituents from Vellozia graminifolia (Velloziaceae)

Anais da Academia Brasileira de Ciências, 2004
From the hexane and ethyl acetate extracts obtained from stems, roots and leaf sheaths of Vellozia graminifolia, a mixture of linear hydrocarbons, a mixture of pentacyclic triterpenes, five monoisoprenylated flavonoids and one labdane diterpene, (-)-ent ...
Alexsandro Branco, Angelo C. Pinto, Raimundo Braz Filho   +2 more
doaj   +1 more source

A novel PKC activating molecule promotes neuroblast differentiation and delivery of newborn neurons in brain injuries [PDF]

, 2020
Neural stem cells are activated within neurogenic niches in response to brain injuries. This results in the production of neuroblasts, which unsuccessfully attempt to migrate toward the damaged tissue. Injuries constitute a gliogenic/non-neurogenic niche
A Buffo, A Kamezaki, A Torroglosa, AC Newton, AC Rice, AX Wu-Zhang, BT Susarla, C Kilkenny, C Romero-Grimaldi, CP Blobel, DC Lee, DR Marks, E Flores-Giubi, EK Adrian Jr., ES Anton, F Doetsch, F Garcia-Bernal, FH Gage, GJ Francis, HG Kuhn, HT Ghashghaei, I Comte, J Fallon, J Liu, J Wang, JB Cavanagh, JC McGrath, JM Verdi, K Blennow, K Jin, L Avila, LG Rabaneda, LG Rabaneda, M Carrasco, M Dang, M Dang, M Fatt, M Murillo-Carretero, N Geribaldi-Doldan, N Geribaldi-Doldan, ND Zhao, O Gonzalez-Perez, PK Dash, RG Thorne, S Chirumamilla, S Dominguez-Garcia, SW Sunnarborg, V Tropepe, Y Kim   +48 more
core   +1 more source

Resin Diterpenes from Austrocedrus chilensis [PDF]

Molecules, 2011
Seventeen diterpenes belonging to the labdane, abietane and isopimarane skeleton classes were isolated from the resin of the Chilean gymnosperm Austrocedrus chilensis and identified by spectroscopic and spectrometric methods. The diterpene 12-oxo-labda-8(17),13E-dien-19 oic acid is reported for the first time as a natural product and 14 diterpenes are ...
Verónica Rachel Olate, Olatz Goikoetxeaundia Usandizaga, Guillermo Schmeda-Hirschmann   +2 more
openaire   +5 more sources

When chemistry meets taxonomy: Studying glycolipidic chemomarkers in pelagic Sargassum spp. (Phaeophyceae) using molecular networking

Journal of Phycology, EarlyView.
Abstract To chemically differentiate the three pelagic Sargassum morphotypes co‐occurring in floating rafts and drifting across the Atlantic Ocean before stranding on West African, Caribbean, and Atlantic Mexican coastlines, we conducted an investigation of their metabolomic profiles.
Charlotte Nirma, Valérie Stiger‐Pouvreau, Marceau Levasseur, David Touboul, Solène Connan, Sylvain Petek   +5 more
wiley   +1 more source

Structure and Fungicidal Activity of Secondary Metabolites Isolated from Trichoderma hamatum b-3

Journal of Fungi
Two new harziane diterpenes (1–2), five undescribed cyclonerane sesquiterpenes (3–7), and three known compounds, 11-cycloneren-3, 7, 10-triol (8), harziandione (9), and dehydroacetic acid (10), were isolated from Trichoderma hamatum b-3. Their structures
Li Huang, Qiang Bian, Mengdan Liu, Yiwen Hu, Lijuan Chen, Yucheng Gu, Qiwei Zu, Guangzhi Wang, Dale Guo   +8 more
doaj   +1 more source

Diterpene Synthases and Their Responsible Cyclic Natural Products [PDF]

, 2014
This review provides an overview of diterpene synthases which were initially identified via genetic and/or biochemical means, traversing all organisms researched to ...
Hai-Yan Gong, Xiao-Ya Chen, Ying Zeng
core   +1 more source

The Jasmonate‐Responsive SmMPK3–SmWRKY33 Module Positively Regulates Tanshinone Biosynthesis in Salvia miltiorrhiza

Plant Biotechnology Journal, EarlyView.
ABSTRACT Tanshinones, the major bioactive diterpenes in Salvia miltiorrhiza Bunge, are widely used to treat cardiovascular and cerebrovascular diseases. While jasmonates (JAs) are known to modulate tanshinones accumulation, the molecular link between JA signalling and tanshinone biosynthesis remains unclear.
Renjun Qu, Shiwei Wang, Xinxin Wang, Jiaming Peng, Juan Guo, Guanghong Cui, Tong Chen, Meilan Chen, Shuangshuang Zhao, Ye Shen   +9 more
wiley   +1 more source

Antiparasitic and Cytotoxic Activity of Bokkosin, A Novel Diterpene-Substituted Chromanyl Benzoquinone From Calliandra portoricensis

Frontiers in Chemistry, 2020
Calliandra portoricensis is a medicinal plant growing freely in Nigeria. It is used traditionally to treat tuberculosis, as an anthelmintic and an abortifacient.
John B. Nvau, Samya Alenezi, Marzuq A. Ungogo, Marzuq A. Ungogo, Ibrahim A. M. Alfayez, Manal J. Natto, Alexander I. Gray, Valerie A. Ferro, Dave G. Watson, Harry P. de Koning, John O. Igoli, John O. Igoli   +11 more
doaj   +1 more source

A Review of the Anti-diabetic Activity of Andrographis Paniculata (Burm. F.) Nees Based In-vivo Study [PDF]

, 2015
Diabetes mellitus (DM) is ricing nowadays. DM is a metabolic deasease characterized by increasing of glucose blood level for prolonged time. Patient with DM must take medicine for lowering glucose levels in whole life.
Harimurti, S. (Sabtanti), Komalasari, T. (Titi)   +1 more
core  

Identification, characterization and molecular adaptation of class I redox systems for the production of hydroxylated diterpenoids [PDF]

, 2016
Background De novo production of multi-hydroxylated diterpenoids is challenging due to the lack of efficient redox systems. Results In this study a new reductase/ferredoxin system from Streptomyces afghaniensis (AfR·Afx) was identified, which allowed ...
Bernhard Loll, Christian Görner, Frank Wallrapp, Martin Haslbeck, Patrick Schrepfer, Thomas Brück, Veronika Redai, Wolfgang Eisenreich   +7 more
core   +3 more sources