Results 21 to 30 of about 807 (153)

Isolation and Characterization of Novel Huperzine-Producing Endophytic Fungi from Lycopodiaceae Species [PDF]

open access: yesJournal of Fungi, 2023
Huperzine A (HupA) is an important drug for treating Alzheimer’s disease (AD) and is primarily extracted from the Huperzia serrata (Lycopodiaceae). Failures in the chemical synthesis of Hup and in vitro culture have put H. serrata in danger of extinction,
Thanh Thi Minh Le   +4 more
doaj   +2 more sources

Functional Characterization and Mutagenesis Studies of a Microbial-like Diterpene Synthase from Huperzia serrata [PDF]

open access: yesMolecules
Over the past decade, an increasing number of functional microbial-like terpene synthases (MTPSLs) have been reported in non-seed plants. However, whether the traditional Chinese medicinal plant H.
Ting He   +5 more
doaj   +2 more sources

New PKS/NRPS Tenuazamines A–H from the Endophytic Fungus Alternaria alternata FL7 Isolated from Huperzia serrata [PDF]

open access: yesJournal of Fungi
In this paper, we present a novel class of hybrid polyketides, tenuazamines A–H (1–8), which exhibit a unique tautomeric equilibrium from Alternaria alternata FL7.
Hao Zhang   +8 more
doaj   +2 more sources

Diterpenoids from the Endophytic Fungus Botryosphaeria sp. P483 of the Chinese Herbal Medicine Huperzia serrata [PDF]

open access: yesMolecules, 2015
Two new tetranorlabdane diterpenoids, named botryosphaerins G (1) and H (2), were isolated from the solid fermentation products of Botryosphaeria sp. P483 along with seven known tetranorlabdane diterpenes (3–9).
Yan-Mei Chen   +4 more
doaj   +2 more sources

Huperzia crassifolia (Lycopodiaceae), a new species from China based on morphological characters and molecular evidence [PDF]

open access: yesPhytoKeys
A new species of the firmoss from China, Huperzia crassifolia sp. nov., is described and illustrated based on morphological characters and molecular evidence. The new species resembles species associated with the H.
Zhi-You Guo   +6 more
doaj   +4 more sources

Extended release huperzine for the treatment of idiopathic epilepsy in dogs – a Case Report [PDF]

open access: yesFrontiers in Veterinary Science
Huperzine is a naturally occurring alkaloid derived from the Chinese clubmoss Huperzia serrata. It is a potent acetylcholinesterase inhibitor, among other properties, and has demonstrated protection against induced seizures in a mouse model of Dravet’s ...
Kylie L. Grant, Sam N. Long
doaj   +2 more sources

A perspective on the mechanisms of herbal medicine for cognitive impairment [PDF]

open access: yesFrontiers in Neurology
Cognitive impairment (CI) represents a critical public health burden exacerbated by aging populations and inadequate therapeutic options. Conventional treatments usually target single molecules, which limits their effectiveness in addressing the complex ...
Si-yuan Zheng   +2 more
doaj   +2 more sources

Co-cultivation Serratia marcescens with Trichoderma harzianum for improving production of Huperzine A [PDF]

open access: yesApplied Microbiology and Biotechnology
Plant-derived (−)-Huperzine A (HupA), the bioactive enantiomer of the acetylcholinesterase inhibitor used for Alzheimer’s disease (AD) therapy, is limited by the scarcity of Huperzia serrata (HS), while chemically synthesized (+)-HupA is clinically ...
Han Wen-Xia   +9 more
doaj   +2 more sources

Lecanicillium aphanocladii: a biocontrol agent against insect pests and phytopathogens. [PDF]

open access: yesPest Manag Sci
Recent research findings on the biocontrol potential of Lecanicillium aphanocladii fungus against insect‐pests and plant diseases were highlighted. This review indicates that several L. aphanocladii strains show great potential to be developed as multipurpose biocontrol agents active against several insect‐pests, plant diseases and plant parasitic ...
Liu Q, Johnson R, Adusei-Fosu K.
europepmc   +2 more sources

Natural Chiral Scaffolds in Alzheimer's Disease: Therapeutic Potential, Mechanism, and Clinical Aspects. [PDF]

open access: yesBiomed Res Int
Alzheimer′s disease (AD) is a multifactorial neurodegenerative disorder characterized by progressive cognitive impairment, amyloid‐β deposition, tau pathology, oxidative stress, neuroinflammation, and dysfunction of synapses. Current therapeutic options are largely symptomatic and lack disease‐modifying efficacy.
Singh A, Sahu SK, Sah AK.
europepmc   +2 more sources

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