The influence of adrenal hormonal imbalance on separate stages of skin carcino genesis was investigated in SWR mice, with a single feeding of 7,12-dimethylbenz[a]anthracene given as initiating stimulus and twice-weekly paintings of 5 per cent croton oil to the skin, for 20 weeks, as promoting stimulus. An excess of hormonal action was achieved by the addition of hydrocortisone to the standard d...

In order to explore novel anti-inflammatory agents, some novel mefenamic acid derivatives as potential non-steroidal antiinflammatory agents (NSAIDs) were synthesized and characterized by IR, H-NMR, C-NMR, mass and elemental analysis. The anti-inflammatory activities of the target compounds were evaluated via the croton oil-induced ear oedema test in mice. According to screened results, compoun...

The aim of the study was to evaluate the anti-inflammatory activity of the S. paranense crude extract, S. paranense alkaloid fraction, and solanine alkaloid. These samples reduce the croton oil-induced ear edema in a dose-dependent manner and a maximum inhibition of 81%, 98%, and 80% in the doses of 1.0, 0.73, and 0.37 mg/ear, respectively. Moreover, the samples inhibit the MPO activity with an...

In the present study, we induced melanomas in C57BL/6 mice by a single application of 7,12-dimethylbenz(a)anthracene to the scapular region of 4-day-old mice, followed by twice-weekly applications of croton oil. Of 20 mice treated, melanomas arose in two female littermates. The first melanoma (JB/MS) arose 16 weeks after initiation of treatment, and the second melanoma (JB/RH) arose 23 weeks la...

Four extracts at increasing polarity were prepared from the leaves of Thymus satureioides Coss. (Labiatae) and assayed for the in vivo topical anti-inflammatory effect using the croton oil ear test in mice, and for in vitro both antioxidant (DPPH degrees test) and anti-bacterial (broth microdilution method) activities. The chloroform extract showed a topical anti-inflammatory activity (ID50=282...

The study evaluates the effects of (KOR), (DOR), and -opioid receptor (MOR) agonists on the inhibition of plasma extravasation during acute and chronic intestinal inflammation in mice. The antiexudative effects of KOR and DOR agonists in animals treated with nitric oxide synthase (NOS) inhibitors and their protein levels in the gut (whole jejunum and mucosa) and spinal cord of mice with chronic...

To evaluate the chemopreventive potential of quercetin in an experimental skin carcinogenesis mouse model. Skin tumor was induced by topical application of 7, 12-dimethyl Benz (a) anthracene (DMBA) and Croton oil in Swiss albino mouse. Quercetin was orally administered at a concentration of 200 mg/kg and 400 mg/kg body weight daily for 16 weeks in mouse to evaluate chemopreventive potential. Sk...

Synadenium umbellatum Pax., popularly known in Brazil as "cola-nota," "avelós," "cancerola," and "milagrosa", is a plant species used in folk medicine for the treatment of inflammation, pain, and several diseases. This study aimed to investigate the antinociceptive and anti-inflammatory activities of the ethanolic extract from Synadenium umbellatum Pax. leaves (EES) and its hexane (HF), chlorof...

Objective(s): For the development of reliable, ecofriendly, less expensive process for the synthesis of silver nanoparticles and to evaluate the bactericidal, and cytotoxicity properties of silver nanoparticles synthesized from root extract of Croton bonplandianum, Baill. Materials and Methods: The synthesis of silver nanoparticles by plant part of Croton bonplandianum was carried out.  The for...