Evaluation of the Hypoglycemic Activity of Methanolic Extract of in Streptozotocin-induced Diabetic Wistar Rats.

Objective: This study aimed to assess the hypoglycemic effects of methanolic extract of in male Wistar rats that were diabetic due to streptozotocin.

Methods: Experimental diabetes was initially induced in male Wistar rats by intravenous injection of streptozotocin (55 mg/kg). Subsequently, the rats received daily oral administration of the methanolic extract of (250 mg/kg) and the standard drug metformin (300 mg/kg) for 28 days.

Melatonin attenuates affective disorders and cognitive deficits induced by perinatal exposure to a glyphosate-based herbicide via antioxidant pathway in adult male and female rats.

The massive use of herbicides, particularly glyphosate-based herbicides (GBHs), raises several worries, notably their neurotoxic effects. Several studies have explored the consequences of developmental exposure. Our work aims to determine the impact of maternal exposure to GBH on behavioral disorders and memory deficits, as well as the involvement of oxidative stress in the hippocampus and prefrontal cortex.

Exploring the neuroprotective role of melatonin against nickel-induced neurotoxicity in the left hippocampus.

Previous studies have demonstrated that the hippocampus, a crucial region for memory and cognitive functions, is particularly vulnerable to adverse effects of exposure to heavy metals. Nickel (Ni) is a neurotoxic agent that, primarily induces oxidative stress, a process known to contribute to cellular damage, which consequently affects neurological functions. The antioxidant properties of melatonin are a promising option for preventing the adverse effects of Ni, especially by protecting cells against oxidative stress and related damage.

Phytochemical composition of cedar tar of the atlas and it's in vitro antifungal activity against Trichophyton rubrum, Trichophyton mentagrophytes and Microsporum canis.

The objective of this study was to identify the major compounds present in Cedar tar obtained by distillation of Cedrus atlantica wood from the Taza forest (Morocco) and to evaluate its antidermatophytic activity in vitro against the three strains of dermatophytes most widespread in Morocco, considered the main prevailing causes of fungal infections of the skin, hair and nails. GC/MS analysis revealed that cedar tar is composed mainly of hydrocarbon sesquiterpenes and oxygenated sesquiterpenes, with nine major compounds identified, including α-Cedrene, β-Cadinene, γ-Cadinene, β-Himachelene, α-Turmerone, β-Turmerone, Ar-tumerone, α-Atlantone and Himachalol. The evaluation of antifungal activity was carried out by the micro dilution technique.

Melatonin is a Neuroprotective and Antioxidant Agent against Neurotoxicity Induced by an Intrahippocampal Injection of Nickel in Rats.

The investigation into the hippocampal function and its response to heavy metal exposure is crucial for understanding the mechanisms underlying neurotoxicity, this can potentially inform strategies for mitigating the adverse effects associated with heavy metal exposure. Melatonin is an essential neuromodulator known for its efficacy as an antioxidant. In this study, we aimed to determine whether melatonin could protect against Nickel (Ni) neurotoxicity.