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Pumpkin seeds have been shown to provide neuropharmacological benefits such as reducing anxiety and depression, and improving memory.
2023 Behavioural Neurology Cucurbita maxima Seeds Reduce Anxiety and Depression and Improve Memory Wahid S, Alqahtani A, Khan RA
Animal Study Depression Pumpkin Seed
The study evaluated the effects of pumpkin seeds on four areas - anxiety, depression, memory, and motor coordination. Anxiety was tested using models like light and dark apparatus, elevated plus maze, head dip, and open field test, while depression was assessed by the forced swim test and tail suspension test. Memory and learning abilities were gauged through the passive avoidance test, stationary rod apparatus, and Morris's water maze test. The effect on motor skilled learning was assessed by stationary rod and rotarod apparatus. Finally, the levels of brain biogenic amines were determined using reversed phase high-pressure liquid chromatography.
In the results evaluation, it was found that pumpkin seeds exhibit properties that help reduce anxiety and alleviate depression, while also enhancing memory. However, they showed no significant effects on motor coordination. An elevated level of norepinephrine was observed, possibly contributing to its antidepressant effects. Furthermore, a reduction in the weight of the animal was observed after chronic administration. These benefits are probably due to the seeds' secondary metabolites like cucurbitacin, beta-sitosterol, polyphenolic compounds, citrulline, kaempferol, arginine, beta-carotene, quercetin, and other antioxidants.
Vitamin D deficiency could accelerate depressive symptoms and suicide risks, and vitamin D supplementation may mitigate these effects.
2023 Nutrients Vitamin D in Depression: A Potential Bioactive Agent to Reduce Suicide and Suicide Attempt Risk Somoza-Moncada MM, Turrubiates-Hernández FJ, Muñoz-Valle JF, Gutiérrez-Brito JA, Díaz-Pérez SA, Aguayo-Arelis A, et al.
Review Article Depression Suicide
The paper examines the links between vitamin D deficiency, depression, and suicide from various studies. It hypothesizes that vitamin D could enhance serotonin synthesis and modulate proinflammatory cytokines, both factors in depression and suicide. The paper reviews this hypothesis in the context of the broader health issue of suicide, which is among the leading causes of death worldwide.
This paper then discusses the potential benefits of vitamin D supplementation. Drawing upon indirect evidence suggesting that vitamin D deficiencies may be a risk factor for depression—one of the most common factors in suicide attempts—the paper postulates that vitamin D supplementation could play a role in helping to reduce the risk of depression and thus suicide. The beneficial mechanisms of vitamin D, such as enhancing serotonin synthesis and modulating proinflammatory cytokines, which are associated with depression and suicide, stand as the central contributing factors in this hypothesis.
Recent revelations of L-DOPA, dopamine, 5-hydroxytryptophan, tryptamine, serotonin, N-acetylserotonin, melatonin, 2-hydroxymelatonin, AFMK, AMK, and vitamin D3 derivatives in honey expand its health benefits.
2022 Melatonin Research Serotonin, melatonin and their precursors and metabolites and vitamin D3 derivatives in honey Kim TK, Fabisiak A, Brzeminski P, Reiter RJ, Slominski AT
Review Article Vitamin D
The identification of L-DOPA, dopamine, 5-hydroxytryptophan, tryptamine, serotonin, N-acetylserotonin, melatonin, 2-hydroxymelatonin, AFMK, AMK, and vitamin D3 derivatives in honey aligns with their presence in insects and plants. Serotonin and melatonin, integral to tryptophan metabolism, serve diverse roles as hormones, neurotransmitters, and antioxidants. Dopamine and tryptamine, essential neurotransmitters, have broad significance across species. The detection of these molecules in honey, a widely consumed health-promoting substance, enhances its beneficial effects on human health.
The findings highlight the multifaceted composition of honey, encompassing compounds with recognized roles in neurotransmission, antioxidant activity, and hormonal regulation. The presence of these molecules not only broadens honey's spectrum of health benefits for humans but also implies their significance in the intricate physiology of social insects, influencing bee development and colony functions. The co-detection of these compounds with vitamin D3 derivatives further underscores the interconnectedness of honey with insect and plant biology, shedding light on potential synergies that contribute to the diverse positive effects of honey on human health.
Depression, a prevalent and debilitating disorder, necessitates novel treatments beyond conventional drugs. Stingless bee honey, rich in antioxidants, emerges as a potential antidepressant candidate, explored comprehensively through monoamine, inflammatory, and neurotrophin hypotheses.
2022 Molecules Pathophysiology of Depression: Stingless Bee Honey Promising as an Antidepressant Zakaria FH, Samhani I, Mustafa MZ, Shafin N
Review Article Depression
This comprehensive review delves into the urgent need for safer and more effective depression treatments, considering the limitations of conventional drugs. The focus is on Stingless Bee Honey (SBH), recognized for its high antioxidant content, and its potential as an antidepressant is explored through the lenses of the monoamine, inflammatory, and neurotrophin hypotheses.
Stingless bee honey's potential as an antidepressant is examined in the context of its antioxidant richness, offering a new avenue for addressing depression beyond conventional drug approaches. The review highlights the importance of exploring alternative medicines, such as SBH, for safer and more efficacious depression treatments.
Vitamin D supplementation, particularly in doses greater than 2,000 IU/day, can help reduce depressive symptoms in adults.
2022 Critical Reviews in Food Science and Nutrition The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta‐analysis of randomized controlled trials Mikola T, Marx W, Lane MM, Hockey M, Loughman A, Rajapolvi S, et al.
Systematic Review Depression
In the methodology, a comprehensive database search (including Medline, PsycINFO, CINAHL and The Cochrane Library) was performed to identify English language articles relating to the impact of Vitamin D on depression in adults, published before April 2022. This meta-analysis considered both general and clinical populations and also included studies of individuals suffering from systemic diseases, but excluded studies involving light therapy, co-supplementation (except calcium), and bipolar disorder. During the assessment of the work, the Cochrane risk-of-bias tool (RoB 2) and GRADE standards were employed to appraise the validity of each study.
The results revealed a positive effect of Vitamin D on alleviating depressive symptoms. Despite the presence of high heterogeneity within included studies and with the majority having concerns related to risk of bias, it was found overall that Vitamin D supplementation, particularly when administered at doses about 2,000 IU/day, could serve as a valuable solution in reducing depressive conditions. This offers an interesting angle for mental health treatment, suggesting the supplement could be a useful addition to standard therapeutic procedures for clinical depression.
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