Neuroscience Studies

Pulsatilla chinensis saponins ameliorated murine depression by inhibiting intestinal inflammation mediated IDO1 overexpression and rebalancing tryptophan metabolism.

Depression may be linked with inflammatory bowel disease (IBD). Researchers have found that intestinal inflammation might be a contributing factor to depression, but the exact cause is unknown. This suggests that new treatments for depression targeting the gut may be necessary.

Wang T et al (2023).
Phytomedicine.
PubMed:
37167824

Efficacy and safety of Ginkgo biloba dropping pills in the treatment of coronary heart disease with stable angina pectoris and depression: study protocol for a randomised, placebo-controlled, parallel-group, double-blind and multicentre clinical trial.

A study found that GBDPs derived from GBE can improve angina frequency and quality of life in patients with stable angina pectoris and depression symptoms, suggesting potential usefulness as treatment.

Wu T et al (2023).
BMJ Open.
PubMed:
37164472

Paeonol, the active component of Cynanchum paniculatum, ameliorated schizophrenia-like behaviors by regulating the PI3K-Akt-GSK3β-NF-κB signalling pathway in MK-801-treated mice.

Cynanchum paniculatum has been traditionally utilized in East Asia as an analgesic or antiviral. Some traditional medicinal books also mention its use in treating psychotic symptoms. The study explores its potential benefits for treating schizophrenia-like symptoms in rats. The extracts showed a promising reduction in behavioral abnormalities, leading to the possibility of this plant being a useful resource in the development of antipsychotic medicines.

Bae HJ et al (2023).
J Ethnopharmacol.
PubMed:
37164258

Effects of Ocimum basilicum L. Extract on Hippocampal Oxidative Stress, Inflammation, and BDNF Expression in Amnesic Aged Rats.

The study investigated the effects of a plant extract (OB) on learning and memory in aged rats. Aging decreased cognitive function and increased inflammation and oxidative damage in the brain. However, OB administration for 8 weeks improved learning and memory and reduced inflammation and oxidative damage in the brain. This suggests that OB has neuroprotective effects and may be useful in treating age-related cognitive decline.

Beheshti F et al (2023).
Exp Aging Res.
PubMed:
37154241

Natural antioxidant formula ameliorates lipopolysaccharide-induced impairment of hippocampal neurogenesis and contextual fear memory through suppression of neuroinflammation in rats.

A natural antioxidant formula (NAF) composed of several beneficial compounds was given to rats in this study, who were also induced with lipopolysaccharide (LPS)-induced cognitive dysfunction. The NAF decreased inflammation in the brain and increased the number of neural progenitor cells, ultimately ameliorating the detrimental effects on neurogenesis and fear memory caused by LPS-induced inflammation. These findings suggest that NAF could be utilized to prevent neuroinflammation, which is thought to contribute to cognitive dysfunction.

Zeng W et al (2023).
J Chem Neuroanat.
PubMed:
37150363

Heukharang lettuce (Lactuca sativa L.) leaf extract displays sleep-promoting effects through GABA(A) receptor.

Studies have identified lettuce's sleep-promoting effects and related mechanisms. While it is traditionally known to have hypnotic and sedative effects, few studies have explored this.

Ahn Y et al (2023).
J Ethnopharmacol.
PubMed:
37149068

The central administration of vitisin a, extracted from Vitis vinifera, improves cognitive function and related signaling pathways in a scopolamine-induced dementia model.

Vitis vinifera contains dietary stilbenoids that benefit neuronal disorders related to cognitive impairment. This study investigated the effects of vitisin A, a resveratrol tetramer derived from V. vinifera stembark, on cognitive functions. In in vitro and ex vivo experiments, vitisin A increased cell survival and restored synaptic mechanisms of learning and memory. In vivo experiments showed that vitisin A ameliorated memory function disruptions in mice and upregulated BDNF-CREB signaling in the hippocampus. Overall, vitisin A exhibits neuroprotective effects by upregulating BDNF-CREB signaling and LTP, making it a potential therapeutic agent for neurodegenerative disorders.

Choi J et al (2023).
Biomed Pharmacother.
PubMed:
37148861