Results 41 to 50 of about 2,513,921 (167)

Antibacterial activities of triterpenoidal compounds isolated from Calothamnus quadrifidus leaves

open access: yesBMC Complementary and Alternative Medicine, 2019
Background Calothamnus quadrifidus R.Br has many traditional uses and there are few reports about its chemical and biological activities. So our aim is to isolate the triterpenoidal compounds from dichloromethane fraction (DCMF) of Calothamnus ...
H. A. Ibrahim   +3 more
doaj   +1 more source

Clinical outcomes of intratumoural para‐toluenesulfonamide treatment in equine melanoma

open access: yesEquine Veterinary Education, EarlyView.
Summary Equine melanoma is one of the most common cutaneous neoplasms in horses and is particularly prevalent in grey horses. Although these tumours often demonstrate indolent biological behaviour, some progressively develop locally invasive or malignant characteristics over time, making treatment decisions challenging in clinical practice.
H.‐C. Lo   +4 more
wiley   +1 more source

Comparison of the inhibition capability of oleanolic acid and betulinic acid towards drug-metabolizing enzymes [PDF]

open access: yes, 2015
Background: Human UDP-glucuronosyltransferases (UGTs) are important membrane proteins located in endoplasmic reticulum, and play important roles in metabolism of a variety of endogenous and exogenous compounds.Aims: To determine the influence of subtle ...
Lu, M, Lu, Meng-Hou, Xiao, Wei, Xiao, W
core   +1 more source

Preparation of Nanobetulinic Acid and Investigation of Some Bioactivities of Nanobetulinic Add and Betulinic Acid PerSe [PDF]

open access: yes, 2016
The aim of this project is to isolate the normal betulinic acid and prepare the nanobctulinic acid from the barks of Tectonahamiltoniana Wall (ဒဟတ်အခေါက်). Firstly, betulinic acid was detected in barks, leaves and flowers of Tectonahamiltoniana Wall. (Da-
Cho Cho   +9 more
core   +1 more source

The Triterpene Constituents of the Root Bark of a Hybrid between L. and Koidz. and its Antityrosinase Activities

open access: yesNatural Product Communications, 2007
Mulberry plants have various traditional uses in Thailand, China, Korea and Vietnam. Recently, the root bark of Morus alba L. is used as whitening ingredient in various skin preparations.
Nisakarn Pianwijanpong   +3 more
doaj   +1 more source

Smart Antibacterial Coatings: Harnessing Bacterial Redox Activity for Infection Control

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 18, 22 September 2026.
In this study, we have shown that ceftazidime‐loaded poly(3,4‐ethylenedioxythiophene) (PEDOT@CAZ) functions as a smart, redox‐responsive antibacterial coating that couples bacterial electrical activity with localized antibiotic delivery. Shewanella oneidensis and Pseudomonas aeruginosa induced distinct redox responses in PEDOT, reflecting their ...
Abdullah   +8 more
wiley   +1 more source

Synthesis of peptides based on betulinic acid scaffold and betulinic-butyrolactone derivatives / Habsah Zahari [PDF]

open access: yes, 2017
Several Betulinic acid peptides here synthesized by incorporating BA with neutral amino acids using standard coupling protocols in the presence of HoBt, HBtu and DiPEA.
Zahari, Habsah
core  

Novel Diterpenoids From Salvia rosmarinus Reveal a Compound With Antiproliferative and Antioxidant Activities

open access: yesArchiv der Pharmazie, Volume 359, Issue 9, September 2026.
Four novel diterpenoids were isolated from Salvia rosmarinus (rosemary), together with nine known compounds. ECD calculations were employed to establish the absolute configuration of diterpenoids 1 and 2. The 18‐hydroxycarnosol (1) was evaluated as antiproliferative (SRB assay) and antioxidant (DPPH and TBARS), showing promising results.
Diana Pérez‐Juanchi   +5 more
wiley   +1 more source

Sulfonation of Betulinic Acid by Sulfamic Acid

open access: yes, 2017
Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.Betulinic acid was sulfonated by sulfamic acid in the presence of urea in homogeneous 1,4-dioxane or DMF solution at 65–75°C in 2.5–3.5 h to give betulinic acid 3-sulfate ...
Кузнецов, Б. Н.   +2 more
core   +2 more sources

Betulinic acid ameliorates cast‐immobilized skeletal muscle atrophy but not denervation‐induced skeletal muscle atrophy

open access: yesJCSM Communications
Background Terpenoids have gained attention as therapeutic agents for skeletal muscle atrophy owing to their various physiological activities. In this study, we screened four terpenoids for their therapeutic potential against muscle atrophy in cultured ...
Yuki Enoki   +4 more
doaj   +1 more source

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