Bornesitol
Bornesitol is a cyclitol, a type of cyclic alcohol that plays various roles in the plant kingdom and potentially in human health. It is chemically defined as a methyl ether of D-myo-inositol[1]. This compound is naturally found in the plant families Gentianaceae and Menyanthaceae[1], indicating its presence in a diverse range of plant species.
One of the significant areas of interest in bornesitol research is its potential medicinal properties. A study highlighted its main constituent role in the leaves of Hancornia speciosa, a plant known for its antihypertensive (blood pressure-lowering) effects[2]. This study aimed to explore bornesitol's ability to reduce blood pressure and elucidate its mechanism of action. The findings suggested that bornesitol administration in normotensive rats significantly lowered systolic blood pressure, increased plasma nitrite levels (a marker of nitric oxide), and decreased angiotensin-converting enzyme (ACE) activity. These effects suggest a vasodilatory mechanism, possibly involving the nitric oxide synthase pathway, calcium-calmodulin complex, and the phosphatidylinositol-3-kinase/Akt pathway[2].
While bornesitol shows promise in the context of hypertension, it's important to note that inositol, a related compound, has been studied for various health conditions with mixed results. Inositol has been investigated for conditions such as acute respiratory distress syndrome in premature babies, anxiety, depression, diabetic neuropathy, and retinopathy of prematurity, with no significant improvements observed in these conditions[3]. However, inositol supplements have been associated with potential benefits for metabolic and mental health conditions, including metabolic syndrome, polycystic ovary syndrome (PCOS), and possibly gestational diabetes when taken with folic acid[6][11]. It's crucial to differentiate between inositol and bornesitol, as they are related but distinct compounds with different research findings and potential health implications.
In summary, bornesitol is a naturally occurring cyclitol with potential antihypertensive effects, as evidenced by its ability to lower blood pressure in animal models through mechanisms involving nitric oxide and ACE inhibition[2]. Further research is needed to fully understand its health benefits and potential therapeutic applications in humans.
Citations:
[1] https://en.wikipedia.org/wiki/Bornesitol
[2] https://pubmed.ncbi.nlm.nih.gov/31787722/
[3] https://www.webmd.com/vitamins/ai/ingredientmono-299/inositol
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2582817/
[5] https://www.sciencedirect.com/science/article/abs/pii/S1570023218304082
[6] https://my.clevelandclinic.org/health/drugs/25173-inositol
[7] https://pubchem.ncbi.nlm.nih.gov/compound/1D-1-O-Methyl-myo-inositol
[8] https://www.jstage.jst.go.jp/article/bpb/42/12/42_b19-00601/_pdf
[9] https://pubmed.ncbi.nlm.nih.gov/29980101/
[10] https://www.sciencedirect.com/science/article/pii/S0753332220310921
[11] https://www.healthline.com/nutrition/inositol
[12] https://webbook.nist.gov/cgi/cbook.cgi?ID=R532013
[13] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912080/
[14] https://www.jstage.jst.go.jp/article/bpb/42/12/42_b19-00601/_html/-char/en
[15] https://pubs.rsc.org/en/content/articlelanding/1958/jr/jr9580003189
[16] https://www.tandfonline.com/doi/pdf/10.1271/bbb.63.189