Abstract The aim of the current study was to analyze stability rosmarinic acid in ethanolic tinctures lemon balm ( Melissa officinalis L.), oregano Origanum vulgare peppermint Mentha x piperita ), rosemary Rosmarinus sage Salvia and thyme Thymus vulgaris L.). High-performance liquid chromatography with diode-array detection (HPLC–DAD) employed monitor concentration marker compound over a six mo...

melissa officinalis l. (labiatae) traditionally used in treating neurological disorders has also been identified as a memory-enhancing herb. the extract of m. officinalis has a cholinergic property. the role of basal forebrain cholinergic neurons, the neurons that are destroyed in alzheimer’s disease (ad), in learning and memory, is also well known. the aim of this study is to investigate the r...

Manganese (Mn) is an essential element for biological systems; however occupational exposure to high levels of this metal may lead to neurodegenerative disorders, resembling Parkinson's disease (PD). While its mechanisms of neurotoxicity have yet to be fully understood, oxidative stress plays a critical role. Thus, the main goal of this study was to investigate the efficacy of aqueous extract o...

The aim of this study was to evaluate the release of rosmarinic acid (RA) from the experimental topical formulations with the Melissa officinalis L. extract and to evaluate its penetration through undamaged human skin ex vivo. The results of the in vitro release study showed that higher amounts of RA were released from the emulsion vehicle when lemon balm extract was added in its dry form. An i...

Studies of hybridization have increased our understanding of the nature of species boundaries, the process of speciation, and the effects of hybridization on the evolution of populations and species. In the present study we use genetic and morphological data to determine the outcome and consequences of secondary contact and hybridization between the butterfly species Lycaeides idas and L. melis...

Lemon balm (Melissa officinalis) has been used historically and contemporarily as a modulator of mood and cognitive function, with anxiolytic effects following administration of capsules, coated tablets and topical application. Following a pilot study with lemon balm extract administered as a water based drink, which confirmed absorption of rosmarinic acid effects on mood and cognitive function...

primary dysmenorrhea refers to painful cramps during menstruation with no organic reason. with respect to its high incidence and adverse outcomes in quality of life and some evidences regarding the sedative and antispasmodic effects of melissa officinails on smooth muscles as an herb, this double-blind clinical trial was conducted to determine the effects of its capsules on severity of dysmenor...