lantadene a/lantana camara

Lantadene A (22 beta-angeloyloxy-3-oxo-olean-12-en-28-oic acid), a pentacyclic triterpenoid compound from lantana (Lantana camara) leaves has been obtained in two polymorphic forms I and II. Form I had white, fluffy, and rod-shaped uniform crystals. Form II particles were irregular, shining, and

Ivermectin is the only drug currently recommended for the treatment of onchocerciasis, the second leading infectious cause of blindness in the world. This drug kills only the first stage larvae-microfilariae (mf) of Onchocerca volvulus and is to be used cautiously in areas where Loa loa is prevalent

A new triterpene, lancamarolide (1), and seven known triterpenes, oleanonic acid (2), lantadene A (3), 11α-hydroxy-3-oxours-12-en-28-oic acid (4), betulinic acid (5), lantadene B (6), and lantaninilic acid (7) were isolated from the aerial parts of Lantana camara in the course of bioassay-guided

Lantana poisoning has been taking a heavy toll of livestock year after year. All aspects of the problem are reviewed. Lantana poisoning in cattle, sheep, buffalo, and guinea pigs caused obstructive jaundice, photosensitization, and rise in serum glutamicoxaloaetic transaminase activity. The symptoms

The taxa of Lantana camara toxic to animals contain lantadene A lantadene B, whereas in two non-toxic taxa other triterpenes predominate. Several new triterpenes have been characterized. Contrary to earlier claims, lantadene A and to a lesser extent lantadene B are toxic when administered

Six compounds were isolated from leaves of Lantana camara. On the basis of chemical and spectral (UV, IR, EI-MS, 1HNMR 13CNMR) analysis, they were identified as oleanonic acid (I), lantadene A (II), lantadene B (III), lantanilic acid (IV), icterogenin (V) and

A partially purified toxin fraction and lantadene A were obtained from Lantana camara L. leaves by batch extraction, column chromatography and fractional crystallization. Toxicity was tested in guinea pigs. The total number of chemical entities in the partially purified toxin preparation was 7, the

Lantana intoxication of guinea pig inhibited lipid peroxidation in different tissues in the order: adrenals greater than liver greater than kidneys greater than heart greater than lungs greater than testes greater than brain. The inhibitory factor(s) appear to be present in the postmitochondrial

Levels of the lantadene pentacyclic triterpenes were quantified in young and mature leaf samples of Lantana camara var. aculeata, by HPLC. The amount of different lantadenes (mg/100 g dry wt.) in young and mature leaf samples, respectively, was: lantadene A, 491.5 +/- 6.3, 805.9 +/- 52.8; lantadene

A toxin fraction was obtained from Lantana camara L (red variety) leaves by batch extraction and column chromatography on silica gel (60-120 mesh). The main constituents of the toxin preparation were lantadene A and lantadene B and it was devoid of reduced lantadene A. Oral administration (125 mg/kg

Lantadene C (22 beta-2-methylbutanoyloxy-3-oxoolean-12-en-28-oic acid) isolated from the leaves of the hepatotoxic plant Lantana camara var. aculeata (Red) has been found to be identical with dihydrolantadene A reported earlier. Molecular structure of lantadene C has been deduced from single crystal

Detoxification of lantadene A (LA), the hepatotoxin from Lantana camara var. aculeata, by the bacterial strain Alcaligenes faecalis has been investigated. Lantadene A induced hepatotoxicity concomitant with increases in plasma bilirubin, blood plasma enzymes and histopathological lesions that typify

Lantadenes are pentacyclic triterpenoids present in the leaves of the plant Lantana camara. In the present study, in vitro antioxidant activity and free radical scavenging capacity of lantadene A was evaluated using established in vitro models such as ferric reducing antioxidant power (FRAP),