Showing posts with label antioxidant. Show all posts
Showing posts with label antioxidant. Show all posts

Tuesday, 9 July 2019

Antioxidant use in IDH1 mutant tumors

I'd like to open a topic up for debate here regarding antioxidant use in IDH1 mutant tumors. My understanding is that IDH1 mutant tumors are characterized by generally low Glutathione (antioxidant) levels, significantly sensitizing them to ROS generation. Some researchers speculate that this is the primary reason for superior OS stats for IDH1 mutant tumors, e.g.:


Given this particular dynamic, should I conclude that use of antioxidants which stimulate Glutathione (e.g. Alpha Lipoic Acid, Green tea, Cinnamon,...) should better be avoided in the case of IDH1 mutant tumors?

I am particularly interested in this question as my tumor is IDH1 mutated, and I recently started taking the Metabloc protocol (Alpha Lipoic Acid + Hydroxycitrate), since it seems to deliver very promising synergy with Metformin use. After investigating a bit, I am contemplating skipping the Alpha Lipoic Acid, however. 

Any thoughts on this topic? Thanks!

John

Monday, 11 March 2019

Oligo Treatment

Hello everyone,

In a couple weeks I'll be beginning proton radiation therapy. I have a basic cocktail and diet strategy for the 6 week treatment and I wanted to run it by this blog community while also asking a few questions.

My story so far:

Focal seizure in Oct 2018.

4.5cm mass, frontal/parietal, no contrast enhancement, everything else typical for an oligo.

Surgery late Dec. GTR, no visible tumor remains.

Pathology: Grade III oligo, with 10/10 HPF mitosis, dense cellularity, moderate atypia, no vascular proliferation, no necro.

TMB 6.8
IDH1 mut
TERT mut
CIC mut
1p19q codel
P53 retained
ATRX retained
MGMT methylated

Current plan is proton+TMZ then up to 12 cycles of TMZ.

Did 1 cycle of TMZ in between surgery and radiation start.

Cocktail

Keppra, 1g x 2
Longvida, 1.6g x 2
GTE 1g (450mg egcg) x 2
PSK 1.5g x 2
Maitake, 50mg x 2
CBD  (don't have it yet, still considering dosage)
Omega-3 3g (total EPA+DHA)
Pterstilbene 150mg x2
Resveratrol 250mg x2
D3 5000 IU x2
Berberine, 600mg x3
Silymarin, 450mg x3
Probiotics via yogurt or pills (occasional, can reduce gut diversity?)
Selenium 200mcg
Melatonin, 10-20mg
Magnesium, ~200-300mg

Still trying to get
Celebrex
Chloroquine

Ketogenic diet rough plan
72h fast 3 days prior
Protein under 65g, carbs under 20g and GKI as close to 1 as possible.
1000cal per day, possible 20:4 intermittent fasts 3 days per week, alternating

Lots of walking and probably very light but consistent exercise throughout.

Questions

1) Will any of these supplements (antioxidants specifically) potentially interfere with oxidative stress on the tumor cells?

2)The majority of this cocktail and diet plan is ripped from GBM research and GBM/AA3 posts on here. Are there IDHmt/oligo specific supplements/drugs etc that I may be missing?

3) I've heard GTE can be toxic. I have Nusapure GTE and Swanson's Teavigo caps as well. What are people on here buying for EGCG?

4) Is chloroquine as promising to an oligo as it is to a GBM?

5) Is cal restriction necessary if I were regularly fasting, and vice versa? This is a bit of a grey area that I don't quite have figured out yet.

Also, as of now, I intend to save PC chemo for future recurrences. TMZ is a much less damaging chemo. My main concern with TMZ, however, is hypermutation. I'm not sure how to possibly mitigate that.

Thanks in advance.

Friday, 13 April 2018

The combination of DCA and a high dose of R-lipoic acid.


The MetaBloc protocol, which includes 800 mg of R-lipoic acid BID, looks interesting.
At the same time, the administration of DCA looks promising. It is reported that R-lipoic acid (form of alpha-lipoic acid) reduces the side effects of DCA.
Now my mom takes together DCA (8mg / kg / BID) and R-lipoic acid (800mg / BID).

However, I found an unexpected opinion about this!!! ↓↓↓

https://www.cancertreatmentsresearch.com/dichloroacetate-dca-treatment-strategy/#comment-4502

“The difference between DCA and ALA is that DCA increases the production of ROS already overexpressed in cancer cells, such as chemotherapy to trigger either apoptosis, autophagy or necrosis of cancer cells. ALA on the contrary will tend to reduce the production of ROS to its normal threshold as in a healthy cell, thus triggering apoptosis if the cell detects a corruption of its DNA. In fact the overproduction of ROS, at the first level will lead to DNA corruption (cancerous state), to the next level we have apoptosis, then autophagy and then necrosis. Thus, with chemotherapy, such as DCA, cancer cells are destroyed by increasing their ROS production, but at the same time healthy cells are transformed into cancer cells by increasing their ROS level in the first stage...

DCA and ALA fall into two opposing strategies, DCA acts by citotoxicity like chemotherapy or radiotherapy, ALA acts by bringing the cells back into their normal operating context (normal ROS level for example). ALA is often taken to correct the neurological effects of DCA, but as part of the cancer their actions cancel each other out, so avoid taking them together. When it starts with an anti-cancer treatment citotoxic, after a certain time it will have to be interrupted before it becomes too harmful for the healthy cells and give the relay to the immune system supported by supplements like ALA, HCA, curcumin, vitamin C, etc."

http://treatingglioblastoma.com/treatments/dichloroacetate_DCA.htm
"Incidentally, I have concerns about any chemo patient taking ALA because it is a powerful anti-oxidant and probably increases intracellular glutathione levels in cancer cells, thereby contributing to chemoresistance. In addition, Dr. Michelakis reports that DCA preferentially increases reactive oxygen species (ROS) in cancer, but not healthy cells, which helps induce apoptosis. I have concerns that ALA could also help reduce the effectiveness of DCA."

However, in this article it is written about similar mechanisms of action of DCA and alpha-lipoic acid:
http://crescopublications.org/pdf/CROOA/CROOA-2-019.pdf

"Inhibition of PDK with either α-LA, small interfering RNAs or dichloroacetate (DCA) shifts the metabolism of cancer cells from glycolysis to glucose oxidation. Such metabolic rewiring is effective in reducing cancer cell growth in mice. The efficacy of cytotoxic chemotherapy is enhanced by the combination of α-LA and HCA. Similarly, DCA enhances the efficacy of cytotoxic chemotherapy or radiation therapy."

http://www.portmoodyhealth.com/cancer-centre/integrative-cancer-therapies/intravenous-alpha-lipoic-acid-iv-ala/
"Furthermore, ALA is cofactor of pyruvate dehydrogenase, an enzyme that converts pyruvate to acetyl-CoA, which reduces the formation of lactate. Lactate is produced from glucose in excessive amounts by cancer cells, as a result of altered cell metabolism (a phenomenon known as the Warburg effect). ALA reduces the amount of lactate produced by cancer cells, slowing their growth rate (19,20). In this way, ALA is synergistic with DCA (dichloroacetate) in its ability to alter cancer cell metabolism."

In reports on the treatment of Medicor, DCA is used together with R-lipoic acid.
For example, here:
http://medicorcancer.com/metastatic-ovarian-cancer/
"The patient consented to DCA treatment and was started at 23 mg/kg/day (500mg p.o. b.i.d.), on a cyclic treatment of 1 week on, and 1 week off. She was supplemented with vitamin B1 100mg p.o. t.i.d., and R alpha lipoic acid 300mg p.o. t.i.d."

Stephen also writes in one of his comments:
"Notably, one of the mechanisms of alpha-lipoic acid (inhibition of PDK, pyruvate dehydrogenase kinase) is a mechanism shared with dichloroacetate (DCA)."

Your opinion? Is it possible to combine a high dose of R-lipoic acid and DCA?
Will not they counteract each other?

P.S. An interesting conclusion of this study:
http://www.anaturalhealingcenter.com/documents/Thorne/articles/R-Lipoic12-4.pdf
"In order to significantly extend Cmax and AUC, it is possible to administer three 600-mg RLA doses (as NaRLA) at 15-minute intervals to achieve plasma concentrations similar to those from a slow (20-minute) infusion of LA."
How can we use it? Take 800mg of NaRLA in three doses at intervals of 15 minutes?

Also, because of problems with the stomach, I consider intravenous administration of alpha-lipoic acid. What dose for one infusion should be taken to equal 800 mg of BID NaRLA? And how often to make such infusions? I find different options: daily infusions or 2-3 times a week.

Thursday, 1 March 2018

Cocktail Interactions with Chemo and Radiation

Stephen, I can’t remember what RX/supplements to hold or continue during radiation and/or TMZ?
Can you help?

*Oct 2013 husband diagnosed GBM#4, left frontal lobe, total resection, no seizures. 
*Total 6 wks SOC, TMZ & Radiation. Drug cocktails below. 
*Dec 2013- Oct 2015 Optune Trial/TMZ. Stopped Optune due to skin issues.
*Jan 2015, NO thought recurrence so changed him to CCNU cuz TMZ “failed him”. The CCNU was brutal on him so he stopped it July 2015.
*I did not agree it was recurrence as looked like necrosis to me. I was upset off TMZ since Methylated. June 2015 took him to UCSF/Berger. He agreed didn’t think recurrence either so we decided to ”watch and wait". Since “supposed” recurrence never materialized, he stopped all treatments July 2015 except Drug Cocktails. 

*Jan 2018, GBM recurrence a little forward of original tumor (not area they watched b4). Full resection. Since still methylated and was treatment free since July 2015, decided to try TMZ for 12 mos and Cyberknife radiation for 5 days. 

Tumor is: IDH-1 R132H wildtype. ATRX retained, Mib 10%, MGMT Methylated 
Will have the gene testing results soon.

Hubby is 76.5 yrs old, has some cognitive/motivation issues from 2013 treatment but physically adept. 
Due to his age, I am light on the cocktails:
A) Chemo: TMZ, 300mg 5/23
1) Divalproex Sodium (Valproex Acid) 250 mg DR x 2 daily 
2) Sulfamethox-TMP DS 800 – 160 MG TAB 3 days a wk 
3) Celecoxib 200 mg x 2 
4) Cimetidine, 200 mg x 2 
5) Maitake D fraction Pro 4x, 100 mg x 6 
6) Coriolus – PSP, 400 mg x 6 
7) LEF European Milk Thistle: 240 Silymarin, 90mg Silybin, 24 mg Isosilybin A & B, phospholipids x 2 
8) D3-5,000 IU 1 pill x 1 
9) BroccoMax Broccoli seed extract (sulforaphane Glucosinolate), 30 mg x 1 
10) pTeroPure (Pterostilbene) 50 mg x 1 
11) Mega Lycopene, 15 mg x 1 
12) Melatonin, 20 mg x 1 
13) Longvida curcumin, 1000 mg x 1 
14) Multi-vitamin (not sure if I should give him??) 
15) Pro Omega, 1175 mg x 1 
16) Berberine, 500 mg x 1 
17) Probiotic x 1 
18) Decaf Mega Green Tea Extract, 725 mg x 2 
19) LEF Ultra Soy Extract, genistein not taking right now 
20) Boswellia, not taking currently

Thank you and Blessings to you all!
Candy

Saturday, 29 July 2017

Levi's cocktail

Stephen, and dear blog visitors, I'd also be grateful if you could review my husband's not so extensive cocktail. Should I increase the dosages or should I add something to the list in your opinion? 

I'm so desperate to help him defeat this nasty disease. I know that I'm too hesitant and that we don't have time for that. My husband was shocked about his diagnose so he don't want to read about the possible treatments and drugs so everything is on my shoulders. I totally understand his attitude although it would be such a great help if he would be proactive because he is the smartest person I've ever met. His NO is a very good professional but absolutely not on board, just SOC. We don't even have the courage to ask for his opinion.

Unfortunately we started the majority of these drugs only after radiochemotherapy (except of Metformin and alfacalcidol). We added Aciclovir and CQ on the last week of the radiation therapy. Fluoxetin and DCA right after the last day of RT. Celebrex only 2 weeks ago.

He weighs 70 kg (ca. 154 pounds) if it matters.

Official:
Medrol 16 mg (chorticosteroid - in Hungary we don't have Decadron) This is one tablet only and I'd like to reduce it by half because we have Celebrex but my husband is hesitant because we only have appointment to the NO on 21/8. He has no symptoms other than extreme fatigue and metallic taste in his mouth.

Prescription drugs:
- Metformin - we recently increased it from 850 mg to 1275 mg (This is 1.5 tablet)
- Chloroquine 250 mg
- Fluoxetin 20 mg (Should we increase it to 40 mg? He is quite depressed even after more than a month on it so it just would be a bonus if his mood would be better.)
- Celebrex 200 mg x 2
- DCA 500 mg x 2 on a 2 week on 1 week off basis. We'd like to increase it to 500 mg x 3 as soon as he finishes his first TMZ cycle. Up until now he has not experienced neuropathy although he takes 1 pill of Milgamma Neuro every other day which contains 40 mg of benfothiamin, 90 mg B6 and 0,25 mg B12. We use the product of DCA Lab.
- alfacalcidol 2,5 mcg

Around chemo days:
- Aciclovir 400 mg x 2 (I'm just guessing what would be the right dosage and maybe he should take it daily, not only around TMZ days.)
- Omeprazole 40 mg x 2

His Canadian friend will bring him cimetidine within a few weeks. I'd like him to take 1000 mg a day.

I've just read about clomipramine here but I suppose that you can't use clomipramine and fluoxetin together. Which one has more benefit in your opinion? Mouse evidence on one hand and lots of anecdotal success stories on the other hand.

My husband never had a seizure so I'm hesitant to give him Keppra although its chemosensitizing properties are very tempting.

I have propranolol and I'm thinking to start my husband on it after the first MRI but I'm afraid to mess with his blood pressure. Based on the etodolac + propranolol trial I hope it can be effective with the standard 5/23 protocol, too. I'm assuming that Celebrex can be an appropriate alternative to etodolac.

Although we have a good relationship with our GP who is helpful enough to prescribe for us the above mentioned drugs, I think that she would be reluctant to prescribe tamoxifen, disulfiram, minocycline or maybe even mebendazole on the long term. What do you think of such providers like Alldaychemist? Is it risky to buy from them? Any personal experience?They even have Valcyte which I haven't been able to convince anybody to prescribe since my husband is seronegative for CMV. He had it once but now he has no active CMV infection.

Non-prescription:

- Genistein  (Soy Isoflavones) 28 mg x 2 (We are not so convinced about it and my husband hates it so I think I'm not going to buy it again.) 
- Silibinin 86,5 mg x 6
- melatonin 20 mg
- ca. 1 dl / 3 oz (?) frozen breast milk except of TMZ days (I know, I know...but it was easy to get it through a reliable relative.)
- propolis (30 drops)
- 1 liter green tea on TMZ days with Omega 3 and 200 mg ascorbic acid 
- 1 teaspoon of home-made ethanolic rosehip tincture daily (except of TMZ days) because of this study http://www.scirp.org/jouRNAl/PaperInformation.aspx?PaperID=23446 
I know Stephen what you think about in vitro results but it's so easy to make and it can't do harm.

During RT he ate tons of lycopene-rich tomato juices and home made rosehip puree and steamed broccoli and broccoli sprouts because of sulforaphane. The latter now he hates so he'll start soon on broccoli sprout capsules. I also give him fresh pomegranate juice almost every day.

As you can see we are not so eager about supplements, they seem a bit unproven for us but I recently ordered Longvida curcumin (although its poor bioavailability), liquid Maitake D fraction, Selenium and CQ10. 
Is CQ10 and Selenium applicable in between TMZ cycles despite their strong antioxidant properties? 

Also, we tried a popular Hungarian medicinal mushroom complex (8 pills contain 150 mg rezveratrol, 336 mg shiitake, 336 mg ganoderma, 336 mg maitake, 336 mg almond mushroom) but he had severe diarrhea even on 2 pills a day so I'm not so confident to order him the Mushroom Science PSK product that everyone uses. I didn't see anybody encountering this problem on any cancer forum. It would be a pity to miss it.

I bought some edible oregano essential oil because of these articles but we don't know how to administer it. First, he tried to dissolve 5 drops under his tongue but it has awful taste. Later he tried to drink 5 drops with water. It's also a very strong antioxidant so maybe it's not so smart decision to use it when he is on DCA. or in between chemo cycles. 
https://www.linkedin.com/pulse/oregano-compound-activates-oocytes-kills-glioblastoma-finley
https://www.ncbi.nlm.nih.gov/pubmed/25965832

We'd like to obtain 1:1 THC-CBD oil, too. Could you please provide me with some reliable resources? A lot of people seem to take it but I don't know where to buy it.

Big thank you to Stephen and this helpful community.

Tuesday, 25 July 2017

Kudos and Hindsight's 20/20 Thoughts

I lost my dear husband after 32 years of marriage to a GBM that his colleagues at MD Anderson recognized as so genetically virulent, they did not give him more than a few months, at most, after diagnosis.  I will never forget sitting in a room, surrounded by the large group of oncologists who were his close friends, waiting on the results and then seeing them cry as his case was discussed.

Against their wishes, we started him on a course of supplements to accompany the chemo and radiation.  It included pycnogenol, cannabis oil, curcumin, Leukozepin, Vit. D, turkey tail mushrooms, boswellia, artemisinin, and more, plus organic smoothies.  He had 2-3 acupuncture treatments per week.  It caused an uproar.  He was a traitor to modern science.  Every consult was a battle.  Didn't we realize that free radicals were our FRIENDS?? And we would answer back our retort, and they would argue back theirs.  It was awful...the whole experience was a nightmare because he dared to think outside the box and at MD Anderson's Dept. of Neuro-oncology, that is a sin.  There were times the pressure was so great, he actually stopped the supplements for awhile, or stopped some of them.  And did it help?  No.  The tumor took advantage of the "rest" it got and grew even faster.  So he'd go back on them, having lost ground.

He was even ok'd for a clinical trial as n-of-1, with the supplements having been ok'd by the principal investigator, but the head of the NO department said that no one would go on any trial in his department as long as the patient took supplements, not even a pre-approved n-of-1.  The fact that my husband had been a researcher "in the family" for 30 years, who had done his due diligence, and made the decision to go forward, meant nothing.  And as the department head made this proclamation, he smiled a Mona Lisa smile that said, "It doesn't matter, you know, you are going to die before long anyway."

It is something I will never forgive.

My husband lived almost a year after his diagnosis, to the surprise of all who knew his profile.  And in the last few months, I have relived every decision we made along the way.  May I share my hindsight with you?  Who knows, it might help someone.

1.  First of all, kudos to Stephen and the rest of you, for asking so many questions and thinking of novels ways to attack this monster.  If the NOs won't think outside the box for all of the insurance/funding/politics/training/messy-science/too-many-variables reasons, then we are on our own.  Keep it up.  This is a glioblastoma...time for a new paradigm, folks.

2.  If we had to do it all over again, he'd have gone through the resection, but not the radiation.  The only thing the radiation did was to make the beast bigger.  Yes, it was floppy and full of holes.  But it was MGMT-promoter gene unmethylated.  That radiation + Temodar just kicked it in the shins a little.  When that -blastoma beast regained its strength and got back to the business of evolving, it handily filled in those holes and started to grow again with newer, more efficient angiogenic pathways, but now starting from the larger border!  And with each new chemo agent, it created another new angiogenic pathway that was even better than the one before.  In what universe is this a good idea?

3.  We would have started him on all of his supplements, immediately after the resection, especially cannabis.  You can get it, you just have to try.  Go to the Facebook GBM cannabis blog and put it out there...hey!  I'm in an illegal state!  Help me, please??? and you will be helped.  But get someone to tell you how to dose it.  We were conservative Repubs at the time and didn't know the first thing about CO.  We finally consulted, via FaceTime, with Eloise at Green Health Consultants and she did her best but it was too little too late.

4.  Start on Optune when the tumor is small, not when it is really big like we did.  In Houston, you will have to go to Methodist Hospital to do this.  Husband's new NO, Dr. Ivo Tremont-Lukats, was trained at MD Anderson and is willing to let you use whatever supplements you want.  He's a gem.

5.  Because Husband's tumor's MGMT-promoter gene was unmethylated, we would have gotten him on disulfiram asap, to take along with the Temodar.  I did get some on the black market about mid-way through but it arrived two years out of date.  Dr. Tremont was willing to let my husband have a Hail-Mary trial of it toward the end, but by then the tumor had covered most of his brain and was creeping down his spine.  Like I said, it was especially virulent.  Had his NO at MD Anderson been willing to write a legitimate RX for it after the resection, when that puppy was the size of a peanut, I really think my husband might've had a chance to stop, or at least slow down, its regrowth.  And every time he took Temodar after that, he would have needed to take the disulfiram at the same time.  That, along with the carpet bomb effect of the supplements and Optune, would have given him better odds than what we were dealt at MD Anderson, I'm convinced.

That's it.  That's all I have to offer.  My rage at the medical establishment is something I will be working on for a long time.  I have a couple wonderful of "forgiveness" counselors who are helping me with this via phone sessions and I am slowly getting better, I think.

Best of luck to you and may our Lord bless you and keep you in His hands.


Friday, 14 July 2017

My father's GBM

 My father was diagnosed with GBM on 4/15 and he had a total resection surgery on 4/17.  I've been researching pretty much non-stop every since.  I watched the surviving terminal cancer movie, read Ben Williams book, have been scouring the internet gathering as much information as possible and this is how I ended up here.  

Here's all the information I have on my fathers tumor and the treatment and supplements he is on to date:
Genetic testing: MGMT was not detected (negative) unmethylated
IDH1 and IDH2 were not detected (negative) as well
It is EGFR amplified - which qualified him for ABT-414 clinical trial.
He is currently in the trial and has some symptoms which lead us to believe he is getting the actual drug and not the placebo.  
He finished up the standard treatment of Radiation and Chemotherapy a few weeks ago.
He is taking Keppra and a PPI daily

List of supplements: Cannabis oil, 20 mg melatonin, 800 mg curcubrain, reishi and coriolus mushroom supplement, 500 mg Boswellia extract, 400 mg green tea extract, 200 mg resveratrol, 200 mcg selenium, 10000 IU vitamin D3, Hemp seed and flax seed oil.
Also drinking fruit and veggie smoothies daily.

These are the off label drugs that I recently received and plan on having him start in a couple days.
Disulfiram-125 mg a day for the first week, then 250 mg daily
Chloroquine- 250 mg daily
Celebrex- 200 mg twice daily
Metformin- 500 mg once daily, titrating up to twice daily, then 3 times daily
Doxycycline 100 mg twice daily
Propranolol 60-80mg daily
Lipitor
DCA 5mg/kg per day, titrating up to 12-15mg/kg.
LDN (low dose naltrexone) start with 2mg nightly titrating up to 4.5mg

I have a few questions:
1.How does the dosing and schedule of the off label drugs look? Anything I should add or subtract? 
2. I know Disulfiram and DCA can cause neuropathy, should they not be taken together?
3. Should the green tea extract pills be avoided while on DCA?
4. The doxycycline I have is Dox T-SL (Doxycycline 100 mg / Lactic Acid 5 billion spores)  
It says "DOXT-SL contains Doxycycline along with 5 billion spores of lactobacillus sporogenes."
Would the lactic acid cause a problem?
5. Most of the research I've done says statins are beneficial, but I've also an article saying they should be avoided.  Should they be used or avoided? 
If he does take the Celebrex, any recommendations on dose?
6. The Naltrexone pills I have are 50 mg.  I've seen people dissolve them in 50mg of water and then use a syringe to suck up desired amount in mg.  Is this advisable?  Some people say this will cause inconsistent doses, but I don't know another way.
7. I've read that since his GBM is unmethylated and EGFR amplified that a metronomic chemo scheduling would be more beneficial than standard chemo treatment.  We meet with my fathers oncologist next week to take a scan and discuss the future game plan.  Does anyone have any recommendations on how to try and convince his dr. to prescribe the metronomic dosing schedule.

Any help or suggestions would be greatly appreciated.  Like I said, I've been doing a ton of research and sometimes it seems like the more I do, the more confused I get.  

Thursday, 16 March 2017

Vitamin c

There is very little here about vitamin c. Our naturopath recommends high dose vitamin c. What are your thoughts?

Wednesday, 4 May 2016

Antioxidants and CBD - a warning (?)

Hi Everyone!
I don't post here frequently but I'm an active reader. First of all, thank you Stephen and all good people who share their stories and knowledge about battling GBM and other gliomas. The information gathered here is priceless!

A couple of days ago I came across some information that antioxidants appear to reverse the cancer-inhibiting properties of CBD what leads to a conculsion that extensive supplementation with AOX should be significantly reduced or stopped, e.g. curcumin, CoQ10 etc.
Has anyone got any more detailed info on that?

More details on: http://www.beyondthc.com/antioxidants-and-cbd-a-warning/