Have you ever been bitten by a venomous serpent? Ever wondered if you would live to tell about it? You don’t have to be a snake handler to know that venom is not something to play around with. Unfortunately, not everyone knows just how to tackle this issue when the occasion arises. Today, let me introduce what might be a lifesaver and a snake’s worst nightmare – Lobelia.
Slick and Sly
They slither upon the rocks with stealth and, when convenient, make deserted holes their hideout, that is, until they can surprise their next unsuspecting prey. Yep, snakes! These reptiles don’t necessarily have the best reputation of being cute and cuddly. Quite the contrary! Certain snakes can get lethally ugly, with nearly half of the 3200 species being venomous. (1). According to the World Health Organization:“Snakebite envenoming is a potentially life-threatening disease caused by toxins in the bite of a venomous snake. Envenoming can also be caused by having venom sprayed into the eyes by certain species of snakes that have the ability to spit venom as a defense measure.” (2)How could you possibly find the relief you need to meet such an emergency? Thankfully, we have an answer offered to us courtesy of nature.
Anti-Ophidian - Don't Bite The Dust
Lobelia, also referred to as pukeweed, accounts for over 300 different species around the world. The one most often utilized for its medicinal ability is Lobelia inflata. While all parts of this plant can be used for medicinal purposes, the seeds are the most potent. The United Plant Savers state that its “very limited wild harvest is permissible when no other alternative will do.” (Gladstar & Hirsch. Planting the Future. 2000) So what makes this weed so special? The central nervous system activities of this unique herb is thanks to its Piperidine alkaloids, the primary alkaloids of the 52 discovered to date.You may be wondering, what does this have to do with snake bites?
First, snake antivenom is currently the only standard practice for snake bites, but there are increasing challenges with this route. These include price, cold storage, and diagnostic tools. So an available alternative would be good. (4) Then we have venom phospholipase A2 (PLA2). This enzyme, largely present in the poison of snakes, is responsible for its toxic effects. Natural herbal PLA2-inhibitors, such as Lobelia, may demonstrate efficacy as novel alternatives to antivenom serum. (5) The research conducted “showed significant antimicrobial, analgesic and anti-venom properties... Taken together this study validates the strong pharmacological properties of Lobelia nicotianaefolia, which was traditionally used to treat pain and snake bite.” (6) Now, here's the cool part. PLA2 has an affinity to attach to the nicotinic acetylcholine (nACh) receptor sites in our brains. (7) A key hallmark of envenomation is the loss of taste and smell that can persist from months to years. (8) The activation of these nACh receptors by nicotine is linked directly to the restored function of taste receptors and the olfactory pathway (9).Thankfully, Lobelia contains properties which can mimic nicotine’s activating ability.
“Animal studies suggest alkaloids of this type may cross the blood-brain barrier, similar to nicotine, and promote the release of neurotransmitters dopamine and norepinephrine..... Lobelien binds to nicotinic acetylcholine receptor sites, promoting release of epinephrine and norepinephrine release, and acts as an antispasmodic bronchodilator.” (10)