Cancer, part 2.

In cancer, I discussed omega-3 and methylglyoxal.

Methylglyoxal

This time, I'm just going to do a Research Review, by publishing a list of PubMed searches with the following Filters activated: Abstract available, published in the last 10 years, Humans.

Cancer AND "Dichloroacetic Acid".

Cancer AND "Magnesium".

Cancer AND "Methylglyoxal".

Cancer AND "Omega-3".

Cancer AND "Vitamin D3".

Cancer AND "Vitamin K2".

I added searches for Magnesium and Vitamin K2, as I supplement with those and want to see if they have a positive or negative effect on Cancer. I added Dichloroacetic Acid (DCA), as I've read about it.

Will the real methylglyo*al please stand up?

Firstly, a music video. I don't like Eminem that much, but my God-daughter Kerrie does and I love her to bits, so this one's for you hun! ;-D


A new substance just made an appearance on the internets. It's methylglyoacal (MG). It sounds rather a lot like methylglyoxal (MG).

I did a Google search for methylglyoacal. Did I mean...?

I did a PubMed search for methylglyoacal. Did I mean...?

The information originated from Pharmacology researchers link high-carb diet to Type 2 diabetes.

On the University of Saskatchewan's site, Dr. Kaushik Desai's Research Interests states: "Role of methylglyoxal (a byproduct of glucose metabolism) in oxidative stress, hypertension and insulin resistance." In his publications list, methylglyoxal is mentioned many times. I emailed Mark Ferguson, asking:

"Dear Mr Ferguson,
Is there a new substance called Methylglyoacal? Or is it a mis-print of methylglyoxal - twice?
Regards, Nigel Kinbrum."

To which I received the reply:

"Hello Nigel,
I'm going to go with the answer "no" … But we are looking into it.
Thanks for the head up."

The information in the above link was edited. At 02:21 on 11th March 2011, it still contained the word methylglyoacal. By 19:00 on 11th March 2011, it had changed to methylglyoxal.

How many working brain cells do researchers have?

Apparently (according to a Japanese study referred to in Am I Missing Something??? ), eating/drinking lots of sugary & starchy carbohydrate causes postprandial hyperglycemia (high blood glucose after meals) in people with type 2 Diabetes. No sh*t, Sherlock! Postprandial hyperglycemia "causes damage to blood vessels, inflammation and oxidation and these cause clogged vessels and heart attacks." I think we're all in agreement that postprandial hyperglycemia is BAD. So, how to tackle this thorny problem? By pharmacological approaches i.e. drug therapies. Like, Duh!
And what is Diabetes-UK's (& the ADA's) dietary advice to people with type 2 Diabetes?
"The actual amount of carbohydrate that the body needs varies depending on your age, weight and activity levels, but it should make up about half of what you eat and drink." & under Ten steps to eating well:
"At each meal include starchy carbohydrate foods
Examples include bread, pasta, chapatis, potatoes, yam, noodles, rice and cereals. The amount of carbohydrate you eat is important to control your blood glucose levels." Like, Duh!


I've been doing a bit of research on methylglyoxal (MG) as a result of reading Methylglyoxal on Atkins... Uh oh! Apparently it's very toxic, therefore ketogenic diets are BAD, mmm-kay? MG causes Insulin Resistance and Advanced Glycation End-products which are both deemed to be undesirable.

Consider this: MG is a glycolysis (conversion of glucose to pyruvate) inhibitor. As MG inhibits glycolysis in cells, uptake of Blood Glucose by cells decreases. Oh, look. Cells have become Insulin Resistant! As uptake of Blood Glucose by cells decreases, Blood Glucose rises. Oh, look. Increased Advanced Glycation End-products! It's bleedin' obvious (to anyone with a sufficient number of working brain cells) that, on a high-carb diet, MG is toxic. It's a no-brainer that MG's toxicity disappears on a low-carb/keto diet, when you actually want cells to burn fatty acids/ketones rather than glucose. Like, Duh!

In fact, strangulating the glucose pathway in cells may have benefits. See Cancer.


Here's another one. According to Progressive bone mineral content loss in children with intractable epilepsy treated with the ketogenic diet (KD), "The KD resulted in progressive loss of BMC." And yet, just above, "Growth and bone health status were suboptimal as were serum 25-OHD concentrations and dietary intake of calcium and vitamin D." Like, Duh!

Cancer.

By request, I'm writing about cancer. I didn't know this, but cancer is now the No.1 killer of men in the UK. I previously thought that coronary heart disease was the No.1 killer.

Cancer is such a huge subject that, rather than oversimplify it, I'll put a link to Wikipedia. Warning: Pictures of tumours.

Vitamins get a mention, particularly Vitamin D, but EFAs aren't mentioned. This is odd, as typing "Omega-3 Cancer" into PubMed yields 612 human studies going back to 1984. Here are some of them:-

Some effects of the essential fatty acids linoleic acid and alpha-linolenic acid and of their metabolites gamma-linolenic acid, arachidonic acid, eicosapentaenoic acid, docosahexaenoic acid, and of prostaglandins A1 and E1 on the proliferation of human osteogenic sarcoma cells in culture.

Selective killing of human cancer cells by polyunsaturated fatty acids.

Chronic arachidonic acid eicosanoid imbalance: a common feature in coronary artery disease, hypercholesterolemia, cancer and other important diseases. Significance of desaturase enzyme inhibition and of the arachidonic acid desaturase-independent pathway.

n-3 fatty acids and cancer.

Fish consumption and breast cancer risk: an ecological study.

Effect of docosahexaenoic acid on rate of differentiation of HL-60 human leukemia.

N-3 and N-6 fatty acids in breast adipose tissue and relative risk of breast cancer in a case-control study in Tours, France.

Opposing effects of dietary n-3 and n-6 fatty acids on mammary carcinogenesis: The Singapore Chinese Health Study.

Induction of apoptosis in human pancreatic cancer cells by docosahexaenoic acid.

Dietary intakes of omega-6 and omega-3 polyunsaturated fatty acids and the risk of breast cancer.

Nutritional knowledge of primary health care physicians in Jeddah, Saudi Arabia.

13.12.09: Some newer studies:-

A systemic review of the roles of n-3 fatty acids in health and disease.

Anticancer actions of omega-3 fatty acids--current state and future perspectives.

The effect of omega-3 FAs on tumour angiogenesis and their therapeutic potential.

Therapeutic potential of n-3 polyunsaturated fatty acids in disease.

Fish oil enhances the antiproliferative effect of 1alpha,25-dihydroxyvitamin D3 on liver cancer cells.


EDIT: I've been reading about a substance called methylglyoxal, a glycolysis inhibitor. As many types of malignant cancer cells rely on the glycolysis pathway for energy, methylglyoxal looks like a promising anti-cancer agent.

See In vivo assessment of toxicity and pharmacokinetics of methylglyoxal. Augmentation of the curative effect of methylglyoxal on cancer-bearing mice by ascorbic acid and creatine,

A brief critical overview of the biological effects of methylglyoxal and further evaluation of a methylglyoxal-based anticancer formulation in treating cancer patients,

Selective inhibition of mitochondrial respiration and glycolysis in human leukaemic leucocytes by methylglyoxal and

Critical evaluation of toxic versus beneficial effects of methylglyoxal.

It looks like the Indians are ahead of everyone else on this stuff.
Well, well, well. Controversy!

"Methylglyoxal is a regular chemical, not cleared for human use. It is made without conforming to sound manufacturing practices and widely respected codes of good laboratory practices followed throughout the world." O, RLY? See below.

"The IACS' main supplier of Methylglyoxal is an American warehouse corporation, Sigma Medical Company, which sells it for research purposes at $1 to 2 per gramme and specifically states that none of its chemicals is meant for medical use." If everyone stuck to the "rules", humankind would never make any progress.

The principal scientist involved is Professor Manju Ray, a biochemist, not a pharmacologist or cancer specialist." Biochemists know how cells work, so I would say that's a plus point, not a minus point. It's also argumentum ad-hominem.

"The "secret" of the "miracle" lies in the anti-tumour effect of Methylglyoxal - a property shared by hundreds of toxic chemicals. Methylglyoxal, it is claimed, inhibits electron flows in cancerous cells and blocks a crucial step necessary for the production of ATP, the cellular energy "currency". Methylglyoxal isn't anywhere near as toxic as standard chemotherapy drugs. Someone needs to learn some basic biochemistry!

"A critical ingredient, a control group with which the treated patients are compared, is absent from the study." It's unethical to have one group denied a treatment that might save their lives. The Lyon Diet-Heart trial was discontinued because the control group had a much higher mortality than the treated group.

"The researchers treated 24 patients, mostly in highly advanced stages of cancer, with oral administration of Methylglyoxal, with Vitamin C, over eight to 10 weeks. They claim that after treatment, 11 were in "excellent physical condition" and five were in a condition that "can be considered stable". "The rest either opted out of treatment or died during the course of study." This is disturbing enough." You left out the creatine and 0 out of 24 would almost certainly have survived without treatment.

"The study does not show how, through what process, the "cure" occurs." That's not the purpose of the study.

"What is equally astonishing is that the drug should be used in clinical trials on human beings in the first place. Such trials are permissible only after the pharmaco-kinetics (the way and the speed with which the body will handle the drug) is properly understood, and trials on experimental animals have been carried out. In this case, the first criterion was not fulfilled. And there is no mention of animal trials." An animal trial had been done. See the 1st study above.