{"id":12875,"date":"2026-09-29T10:39:52","date_gmt":"2026-09-29T00:39:52","guid":{"rendered":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/?p=12875"},"modified":"2026-09-29T10:44:52","modified_gmt":"2026-09-29T00:44:52","slug":"the-cannabis-cure-myth-what-fourteen-years-of-cited-study-actually-show","status":"publish","type":"post","link":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/the-cannabis-cure-myth-what-fourteen-years-of-cited-study-actually-show\/","title":{"rendered":"The Cannabis Cure Myth: What Fourteen Years of Cited Study Actually Show"},"content":{"rendered":"\t\t
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The cannabis cure myth survives on two words. Potential. Continuing. Both keep reappearing through the scientific literature. Three studies anchor this review: a 2009 pharmacology survey, a 2017 phytochemistry review, and a 2023 chemical analysis. Together, they span fourteen years of dedicated research into a single plant. Even so, none of the three claims a cure. Read closely, they show a field that keeps refining its chemistry. Meanwhile, the therapeutic promise attached to that chemistry sits exactly where the language always placed it. Potential. Not proven.<\/p>

The Same Word, Eight Years Apart<\/b>
The 2017 phytochemistry review supplies its own timeline. Cannabis and its constituents, the authors note, have been the focus of extensive chemical and biological research for almost half a century. That span dates back to the discovery of the chemical structure of THC. Notably, the admission comes from inside the field\u2019s own literature, not from an outside critic.<\/p>

\"\"Earlier still, in 2009, pharmacologist Lumir Ondrej Hanus surveyed the state of cannabinoid and endocannabinoid research. His review found close to fifteen thousand published articles on Cannabis sativa L and cannabinoids. In addition, a further two thousand articles covered the body\u2019s own endocannabinoid system. Hanus catalogued the plant\u2019s history, its constituent compounds and their biosynthesis. He also detailed the pharmacology of natural cannabinoids alongside synthetic agonists and antagonists. Even so, the review closed on the pharmacology and potential therapeutic uses of endocannabinoid congeners. Potential, not proven. The abstract makes that distinction for itself.<\/p>

Eight years later, in 2017, a phytochemistry review led by Mahmoud ElSohly took the count further. By then, researchers had identified more than 560 separate constituents in the plant. The review credited recent discoveries with potential applications across a list of serious conditions. Glaucoma, depression, neuralgia, multiple sclerosis and Alzheimer\u2019s disease all appear. So does easing the symptoms of HIV, AIDS and cancer. Still, read the sentence carefully and the qualifier survives intact. Potential applications gave momentum to further study. However, they did not amount to a settled treatment for any single condition on that list.<\/p>

In short, eight years of accelerating publication sit between the two reviews, and the operative word never moved.<\/p>

The Newest Study Does Not Test the Claim<\/b>
The most recent of the three sources arrived in 2023, and it changes the subject entirely. A Japanese team led by Rie Tanaka used liquid chromatography quadrupole time of flight mass spectrometry. The technique separates and identifies compounds by their precise mass. In practice, researchers used it to measure eleven named cannabinoids across the tissues of two cannabis chemotypes.<\/p>

In the drug type plant, for instance, the team found tetrahydrocannabinol acid concentrated most heavily in the bracts, at 28.4 micrograms per milligram. The buds carried 24.8 micrograms per milligram. Meanwhile, the leaves trailed between 5.1 and 10.5 micrograms per milligram, depending on their position on the stem. In the fibre type plant, by contrast, cannabidiol acid followed a similar gradient. Bracts held 27.5 micrograms per milligram, buds held 10.6, and leaves ranged from 1.5 to 3.3. Six further cannabinoids also featured: delta 9 THC, cannabigerolic acid, cannabinol, cannabigerol, cannabichromene and tetrahydrocannabivarin. Again, researchers found them concentrated mainly in the same three tissues, the bracts, buds and leaves.<\/p>

The plant material itself came from a defined sampling method, set out in the diagram supplied alongside the study. A drug type plant stood 2.7 metres tall, divided into eight segments of roughly 0.3 metres, running from base to tip. Likewise, a fibre type plant stood 3.3 metres tall, divided into ten segments of the same width. Overall, tracking cannabinoid concentration metre by metre up two different plants is a study in analytical precision.<\/p>

The raw output behind those figures looks like the chromatogram supplied alongside the study. Six traces, each locked to a specific mass measurement, track signal intensity over sixteen minutes of separation time. Several traces, moreover, carry two distinct peaks rather than one. That pattern points to compounds that share a mass but differ in structure, so they separate at different points in the run. In short, this is meticulous analytical chemistry. It identifies which molecule is which. Even so, it does not test a single condition from the ElSohly review, and it involves no patient, no symptom, no clinical outcome of any kind. If anything, this newest addition to the cannabis cure myth\u2019s evidence base narrows the claim rather than widening it.<\/p>

A Biosynthesis Map, Not a Treatment Map<\/b>
The complexity running through these three studies has a visual form too. The plant\u2019s own biosynthesis pathway, mapped out in a diagram supplied alongside the cited research, shows it clearly. A single precursor compound, cannabigerolic acid, sits at the centre of the network. From there, enzymes convert it along three separate branches, into cannabichromenic acid, cannabidiol acid and tetrahydrocannabinol acid. Exposed to heat or light, each of those in turn loses a carbon dioxide molecule and converts again, into cannabichromene, cannabidiol and THC. Alternatively, cannabigerolic acid can convert directly into cannabigerol by the same route. Tetrahydrocannabinol acid can additionally oxidise into a further acid form, which then decarboxylates into cannabinol.<\/p>

Eleven named compounds. One shared precursor. Several overlapping conversion routes. Altogether, that is a description of chemical complexity. On the evidence supplied here, though, it stops short of a description of medicine.<\/p>

Botany, Not the Biology of Disease<\/b>
The 2017 review frames itself as an overview of the plant\u2019s botany and cultivation alongside its phytochemistry. The supporting material reflects that scope closely. Photographs accompanying the cited research, for example, document the plant down to its structural anatomy. They show the kernel and shell of an individual seed. They also show the cortex, epidermis, xylem and pith inside a cross section of the stem. Finally, they show the periderm and cortex of the root system beneath it.<\/p>

Even so, none of that material speaks to a therapeutic outcome. Instead, it is the groundwork of plant science, the characterisation that has to happen before researchers can even frame a clinical question. On the evidence supplied here, this groundwork still absorbs a considerable share of the research effort.<\/p>

What Fourteen Years of These Sources Actually Add Up To<\/b>
Put the three sources together and a consistent pattern appears. The 2009 review counted articles and catalogued pharmacology in the language of potential. The 2017 review, in turn, counted constituents and repeated that same word for the same list of conditions. It also confirmed, from inside its own literature, that the underlying research already stretched back close to half a century. Meanwhile, the 2023 study, the newest and most technically advanced of the three, does not engage with therapeutic claims at all. Instead, it refines the chemical map further still, down to the microgram, tissue by tissue, plant type by plant type.<\/p>

None of the three studies supplied here reports a cure. None of them claims one. What they document, consistently and across fourteen years, is a plant whose chemistry keeps getting mapped in finer detail. Yet the clinical promise attached to that chemistry sits exactly where each source leaves it. Potential. Pending. Not yet proven. In the end, the cannabis cure myth persists because the research keeps circling that same word, study after study, year after year.<\/p>

(Source: WRD News<\/a>)<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

The cannabis cure myth survives on two words. Potential. Continuing. Both keep reappearing through the scientific literature. Three studies anchor this review: a 2009 pharmacology survey, a 2017 phytochemistry review, and a 2023 chemical analysis. Together, they span fourteen years of dedicated research into a single plant. Even so, none of the three claims a […]<\/p>\n","protected":false},"author":1,"featured_media":12876,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":"","_wp_rev_ctl_limit":""},"categories":[15],"tags":[],"class_list":["post-12875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cannabis-as-medicine"],"_links":{"self":[{"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/posts\/12875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/comments?post=12875"}],"version-history":[{"count":1,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/posts\/12875\/revisions"}],"predecessor-version":[{"id":12882,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/posts\/12875\/revisions\/12882"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/media\/12876"}],"wp:attachment":[{"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/media?parent=12875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/categories?post=12875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/wp-json\/wp\/v2\/tags?post=12875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}