Cardiovascular side effects of psychopharmacologic therapy

Verbascoside: A neuroprotective phenylethanoid glycosides with anti-depressive properties

BACKGROUND

Verbascoside is a natural and water-soluble phenylethanoid glycoside found in several medicinal plants. It has extensive pharmacological effects, including antioxidative and antineoplastic actions, and a wide range of therapeutic effects against depression.

PURPOSE

In this review, we appraised preclinical and limited clinical evidence to fully discuss the anti-depression capacity of verbascoside and its holistic characteristics that can contribute to better management of depression in vivo and in vitro models, as well as, its toxicities and medicinal value.

METHODS

This review was prepared according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A systematic review of 32 preclinical trials published up to April 2023, combined with a comprehensive bioinformatics analysis of network pharmacology and molecular docking, was conducted to elucidate the antidepressant mechanism of action of verbascoside. Studies included in the systematic review were obtained from 7 electronic databases: PubMed, Scopus, Web of Science, Cochrane, ResearchGate, ScienceDirect, and Google Scholar.

RESULTS

Studies on the antidepressant effects of verbascoside showed that various pharmacological mechanisms and pathways, such as modulating the levels of monoamine neurotransmitters, inhibiting hypothalamic-pituitary-adrenal (HPA) axis hyperfunction and promoting neuroprotection may be involved in the process of its action against depression. Verbascoside promotes dopamine (DA) biosynthesis by promoting the expression of tyrosine hydroxylase mRNA and protein, upregulates the expression of 5-hydroxytryptamine receptor 1B (5-HT1B), prominence protein, microtubule-associated protein 2 (MAP2), hemeoxygenase-1 (HO-1), SQSTM1, Recombinant Autophagy Related Protein 5 (ATG5) and Beclin-1, and decreases the expression of caspase-3 and a-synuclein, thus exerting antidepressant effects. We identified seven targets (CCL2, FOS, GABARAPL1, CA9, TYR, CA12, and SQSTM1) and three signaling pathways (glutathione metabolism, metabolism of xenobiotics by cytochrome P450, fluid shear stress and atherosclerosis) as potential molecular biological sites for verbascoside.

CONCLUSIONS

These findings provide strong evidence that verbascoside exerts its antidepressant effects through various pharmacological mechanisms. However, further multicentre clinical case-control and molecularly targeted fishing studies are required to confirm the clinical efficacy of verbascoside and its underlying direct targets.

The benzodiazepine nation of Croatia: an observational, comparative study of psychotropic drug utilization between Croatia and Sweden 2014-2015

BACKGROUND

The consumption of psychotropic drugs (PD) is increasing worldwide with a significant variation between countries. Croatia and Sweden have similar health and pharmaceutical systems; however, Sweden is a high-income country with developed medical care, registries, and prescribing guidelines. We sought to compare the utilization of PD between Croatia and Sweden to identify areas for improvement in rational use of drugs.

METHODS

This was a cross-sectional study using national databases to assess utilization of PD (ATC N05, N06) in Croatia and Sweden in 2014 and 2015.

RESULTS

Prescribing of PD in Croatia increased from 127 DDD/TID (defined daily dose/1000 inhabitants) in 2014 to 131 DDD/TID in 2015. In Sweden, the total utilization was higher with an increase from 183 DDD/TID in 2014 to 188 DDD/TID in 2015. There were substantial differences. In Croatia, the utilization of benzodiazepine derivatives (N05BA) was 72.5 DDD/TID in 2014 and increased to 74.4 DDD/TID, in 2015. In Sweden, the utilization was only 11.2 DDD/TID for benzodiazepine derivatives in both years.

CONCLUSIONS

There were substantial differences in utilization of PD between Croatia and Sweden. Highlighting the problem of inappropriate benzodiazepine utilization in Croatia can help to introduce measures to change prescribing habits and improve prescribing quality.

Photobiomodulation and the brain: a new paradigm

Transcranial photobiomodulation (PBM) also known as low level laser therapy (tLLLT) relies on the use of red/NIR light to stimulate, preserve and regenerate cells and tissues. The mechanism of action involves photon absorption in the mitochondria (cytochrome c oxidase), and ion channels in cells leading to activation of signaling pathways, up-regulation of transcription factors, and increased expression of protective genes. We have studied PBM for treating traumatic brain injury (TBI) in mice using a NIR laser spot delivered to the head. Mice had improved memory and learning, increased neuroprogenitor cells in the dentate gyrus and subventricular zone, increased BDNF and more synaptogenesis in the cortex. These highly beneficial effects on the brain suggest that the applications of tLLLT are much broader than at first conceived. Other groups have studied stroke (animal models and clinical trials), Alzheimer's disease, Parkinson's disease, depression, and cognitive enhancement in healthy subjects.