Results 141 to 150 of about 2,542,870 (405)

Opioid receptor desensitization: mechanisms and its link to tolerance

open access: yesFrontiers in Pharmacology, 2014
Opioid receptors (OR) are part of the class A of G-protein coupled receptors and the target of the opiates, the most powerful analgesic molecules used in clinic.
S. Allouche, F. Noble, N. Marie
semanticscholar   +1 more source

Nonconventional Techniques in Plant Alkaloid Extraction: A Decade of Progress (2014–2023)

open access: yesChemistry &Biodiversity, EarlyView.
This figure seeks to represent the evolution of the different unconventional approaches that were adopted for the extraction of plant‐derived alkaloids during the decade from 2014 to 2023. ABSTRACT Plant metabolism encompasses primary and secondary pathways, with secondary metabolism yielding diverse natural products crucial for plant adaptation and ...
Victor Menezes Sipoloni   +5 more
wiley   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

Opioid receptor activation triggering downregulation of cAMP improves effectiveness of anti-cancer drugs in treatment of glioblastoma

open access: yesCell Cycle, 2014
Glioblastoma are the most frequent and malignant human brain tumors, having a very poor prognosis. The enhanced radio- and chemoresistance of glioblastoma and the glioblastoma stem cells might be the main reason why conventional therapies fail.
C. Friesen   +7 more
semanticscholar   +1 more source

Volatilome and Antinociceptive Activity of the Traditional Preparation and Compounds from Ageratina grandifolia (Regel) R.M. King & H. Rob.

open access: yesChemistry &Biodiversity, EarlyView.
Abstract An infusion of Ageratina grandifolia, a traditional preparation, and major compounds [3,5‐diprenyl‐4‐hydroxyacetophenone (1), O‐methylencecalinol (2), encecalin (3), and encecalinol (4)], tested at 10, 31.6, and 100 mg/kg, intragastrically administered, showed a significant antinociceptive effect in both phases of the formalin test in mice ...
José Alberto Gutiérrez‐González   +5 more
wiley   +1 more source

Loperamide Inhibits Tachykinin NK3-Receptor-Triggered Serotonin Release Without Affecting NK2-Receptor-Triggered Serotonin Release From Guinea Pig Colonic Mucosa

open access: yesJournal of Pharmacological Sciences, 2005
The effect of loperamide on tachykinin NK2- and NK3-receptor-mediated 5-HT outflow from guinea pig colonic mucosa was investigated in vitro. The selective tachykinin NK2-receptor agonist [β-Ala8]-neurokinin A4–10 (βAla-NKA) or the selective NK3-receptor ...
Shu-ichi Kojima   +2 more
doaj  

Synthesis and κ-Opioid Receptor Activity of Furan-Substituted Salvinorin A Analogues

open access: yesJournal of Medicinal Chemistry, 2014
The neoclerodane diterpene salvinorin A, found in the leaves of Salvia divinorum, is a potent κ-opioid receptor agonist, making it an attractive scaffold for development into a treatment for substance abuse.
Andrew P. Riley   +5 more
semanticscholar   +1 more source

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

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