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JL
Ji‐Kai Liu
Author with expertise in Natural Products as Sources of New Drugs
Achievements
Cited Author
Key Stats
Upvotes received:
0
Publications:
9
(22% Open Access)
Cited by:
358
h-index:
52
/
i10-index:
365
Reputation
Biology
< 1%
Chemistry
< 1%
Economics
< 1%
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Overview
Publications
9
Peer Reviews
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Publications
0
Genome-wide analysis of WRKY transcription factors in Solanum lycopersicum
Shengxiong Huang
et al.
May 8, 2012
Genetics
Molecular Biology
0
Paper
Genetics
358
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0
Penidaleodiolides A and B, Cage-Like Polyketides with Neurotransmission-Regulating Activity from the Soil Fungus
Penicillium daleae
L3SO
Qingyuan Wang
et al.
Sep 5, 2024
L3SO is a fungus isolated from the rhizospheric soil of the chloroplast-deficient plant
Pharmacology
Organic Chemistry
0
Paper
Pharmacology
Organic Chemistry
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Glucoconjugated monoterpene indole alkaloids with xanthine oxidase inhibitory activity from Ophiorrhiza japonica
Bao‐Bao Shi
et al.
May 31, 2024
Continued interest in the bioactive alkaloids led to the isolation of five undescribed alkaloids (1-5), ophiorglucidines A-E, and seven known analogues (6-12) from the water-soluble fraction of Ophiorrhiza japonica. The structures were elucidated based on spectroscopic data and quantum calculations as well as X-ray crystallographic analysis. The structure of 1 was characterized as a hexacyclic skeleton including a double bridge linking the indole and the monoterpene moieties, which is the first report of a single crystal with this type of structure. Moreover, the inhibitory effect of zwitterionic indole alkaloid glycosides on xanthine oxidase was found for the first time. The alkaloids 2 and 3, both of which have a pentacyclic zwitterionic system, were more active than the reference inhibitor, allopurinol (IC50 = 11.1 μM) with IC50 values of 1.0 μM, and 2.5 μM, respectively. Structure-activity relationships analyses confirmed that the carbonyl group at C-14 was a key functional group responsible for the inhibitory effects of these alkaloids.
Pharmacology
Molecular Biology
0
Paper
Pharmacology
Molecular Biology
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Five brasilane-type sesquiterpenoids with neuroprotective activities from Xylaria nigripes
Hong‐Ping Long
et al.
Dec 10, 2024
Biochemistry
Pharmacology
0
Paper
Biochemistry
Pharmacology
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0
Hericinosides A–M, Cyathane Diterpene Glycosides with α-Glucosidase Inhibitory Activity from the Medicinal Fungus
Hericium erinaceus
Lin-Lin Yuan
et al.
Jan 2, 2025
Thirteen new cyathane diterpene glycosides, hericinosides A-M (
Biochemistry
Pharmacology
0
Paper
Biochemistry
Pharmacology
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0
The crystal structure of pyrazole nitrate
Feng Qingxin
et al.
Jan 7, 2025
Abstract C 3 H 5 N 3 O 3 , monoclinic, P 2 1 / c (no. 14), a = 3.702(2) Å, b = 11.109(7) Å, c = 13.105(8) Å, β = 94.21(2)°, V = 537.5(6) Å 3 , Z = 4, R gt ( F ) = 0.0731, wR ref ( F 2 ) = 0.2217, T = 170 K.
Oncology
Organic Chemistry
0
Paper
Oncology
Organic Chemistry
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Cuphea hookeriana: Phytochemical Profile and the Cosmeceutical and Dermatological Properties of Its Active Fraction from the Whole Plant
Desheng Wu
et al.
Jan 14, 2025
Natural products and botanicals continue to play a very important role in the development of cosmetics worldwide. The chemical constituents of a fine active fraction of the whole plant extract of Cuphea hookeriana Walp., and the tyrosinase and matrix metalloproteinase-1 (MMP-1) inhibitory and antioxidant activities of this fraction were investigated. The fine active fraction was mainly composed of seven natural compounds. The fine active fraction demonstrated substantial in vitro antioxidant potential using the ABTS assay (IC50 1.66 μg/mL). It inhibited the two target enzymes (tyrosinase and MMP-1) engaged in skin whitening and aging with comparable IC50 values to the reference drugs. Acute toxicity experiments showed that mice gavage orally with the fine active fraction had no significant animal toxicity at a dose of 2000 mg/kg, and the maximum tolerated dose (MTD) in mice was greater than 2000 mg/kg. In a model where ultraviolet light promotes the increase in melanin secretion in guinea pig skin tissues, both α-arbutin and the fine active fraction can reduce melanogenesis, and the effect of the fine active fraction is better than that of α-arbutin.
Biochemistry
Biotechnology
0
Paper
Biochemistry
Biotechnology
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Cooperative Rh/Achiral Phosphoric Acid-Enabled [3+3] Cycloannulation of Carbonyl Ylides with Quinone Monoimines: Synthesis of Benzofused Dioxabicyclo[3.2.1]octane Scaffolds
Liangcheng Tu
et al.
Jun 3, 2024
A cooperative Rh/achiral phosphoric acid-enabled [3+3] cycloaddition of in situ-generated carbonyl ylides with quinone monoimines has been developed. With the ability to build up the molecular complexity rapidly and efficiently, this method furnishes highly functionalized oxa-bridged benzofused dioxabicyclo[3.2.1]octane scaffolds bearing two quaternary centers in good to excellent yields under mild conditions. Moreover, the utility of the current method was demonstrated by gram-scale synthesis and elaboration of the products into various functionalized oxa-bridged heterocycles.
Organic Chemistry
Catalysis
0
Paper
Organic Chemistry
Catalysis
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Efficient genome editing using CRISPR/Cas9 technology and its application for identifying Sesquiterpene synthases involved in the biosynthesis of Steperoxides in Steccherinum ochraceum
Junxiong Shen
et al.
Nov 1, 2024
Genetics
Biotechnology
0
Paper
Genetics
Biotechnology
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