Bone Hormone Linked to Obesity and Diabetes

grrlscientist writes "New research has shown that the skeletal system may be an important player in preventing obesity and type-2 diabetes in animals. This may also be true for humans, and thus represents an important development for the treatment of these health conditions. From the article: 'Not only do bones produce a protein hormone, osteocalcin (pictured), that regulates bone formation, but this hormone also protects against obesity and glucose intolerance by increasing proliferation of pancreatic beta cells and their subsequent secretion of insulin. Osteocalcin was also found to increase the body's sensitivity to insulin and as well as reducing its fat stores ... "The skeleton used to be thought of as just a structural support system. This opens the door to a new way of seeing the bones," said Dr. Gerard Karsenty, chairman of the department of genetics and development at Columbia University Medical Center in NYC, who headed the team that made the discovery.'"

Comments

Bone hormone?

[edittard]

You mean viagra? (Or as we scientists call it, \/1@gr@ )

Re:Still have to eat well.

[shawb]

I notice a distinct lack of high fructose corn syrup in that data. It simply measures cane and beet sugar. Also such extremely inexpensive calorie laden ingredients such as "partially hydrogenated vegetable oil" are missing as well.

Re:Still have to eat well.

[iamacat]

This is true on the most primitive level. However, for a significant number of people "eating correctly" will mean a 1000 calorie-a-day diet of pure protein and in addition to not being obese they will be constantly hungry and lethargic, lose muscle mass and suffer from various diseases associated with malnutrition. They really need medication as well as medically designed diet/exercise program to take care of those genes and hormones.

Yes, 90% of fat people just need to lay off McDonald and other heavily processed food and throw away TVs.

Endocrine Function

[LightPhoenix7]

Firstly, this isn't Digg, can we please not link to blogs? The original paper from Cell is here: http://download.cell.com/pdfs/0092-8674/PIIS009286 7407007015.pdf.

Secondly, this is exciting news, but not exactly surprising. The differentiation of cells starts in the bone marrow, and there are biochemical signals that start that process. It's not surprising that some of these would be in bone marrow.

Finally, must these articles always make a point to imply that obesity is cause by some random genetic/biochemical "magic bullet," instead of eating poorly and not exercising? I understand that they need funding, and implying you may be able to "cure" obesity is a great way to get it. Even so, I think there's something rather disingenious about it.

Not so hard, though

[localroger]

Actually, having metabolic syndrome myself, I can say that if you catch it in time it responds well to a low carbohydrate diet. You don't need to restrict calorie intake at all, just carbohydrate intake; if you do that you'll find you lose your appetite quickly when you're thinking of eating too much, and your weight settles to a much more reasonable setpoint with no effort or hunger pangs at all.

Also, you cannot eat pure protein; if you are eating low carb, you must eat fat. My blood pressure and cholesterol have confirmed that this isn't unhealthy as long as you aren't poisoning yourself with too much sugar and corn syrup (which is in a lot of foods you'd normally consider healthy, unfortunately.)

Re:Ultra Mega Diet

[Anonymous Coward]

Informative? What the devil are you thinking? A blood glucose between 80-100 is NORMAL. A NORMAL person will bump up to MAYBE 120 after even a bad meal, but rapidly come back to the 80-100 level. If you get below 70, you're running into HYPOGLYCEMIA territory, enjoy your seizures.

800 is indeed a "nuke for your brain" but unless you're a Type I diabetic without ANY endogenous insulin production, or a horribly controlled type II, you're not gonna see that. Hell, I'm not sure I've even seen a fingerstick capable of registering above 550-600!

Respectfully, parent is full of hockey. I'm sure you're an excellent CS student, but you've not had biology for a long time, friend. Don't check your own Fingerstick blood glucose unless you have reason to (ie: a medical condition), but if you're suspicious, then GO TO YOUR DOCTOR. Get a Fasting Blood glucose drawn, not those crap fingersticks. And if you're not satisfied, push for a glucose tolerance test, where you drink RAW glucose, then follow your venous blood sugar levels to see how your body reacts. If it can't keep up with the load, then welcome to the wonderful world of Diabetes. If it DOES, count your lucky stars, go home, and throw out your ho-ho's, Oreo's and Jolt Colas, and try a lovely dose of Moderation In All Things for a change.

Jebus help me...

Hehe, code was "criteria."

Re:May Partially Explain Why Exercise Helps

[Graff]

I've repeatedly heard it said that you would have to run for an insane amount of time to burn off the extra calories from just one cookie, so it isn't in that fashion that exercise helps with weight problems. The amount of calories burned during exercise is only the tip of the iceberg.

Exercising burns up glucose and puts a demand on your body to change how it processes foods. As a result of these changes your body's metabolism increases not only the rate at which it burns calories during exercise but it will also be elevated for a good amount of time afterwards. This means that you burn calories for the actual exercise done but you will also burn more after you have finished exercising, taken your shower, and sat down at your desk to do some work. Here is an article on this phenomenon.

In addition, by exercising you are telling your body that changes need to be made. Part of exercise is the microscopic tearing of muscle fibers, stress on capillaries and other transport systems within your body, and the release of various hormones related to your exertion. Your body's overall response is to rebuild and bolster these systems. You grow more muscle tissue, your capillaries increase their ability to carry more blood, various organs and cellular structures configure themselves for the next bought of exercise. All of these actions take energy and they put food to a better use than simply turning into fat around your waist.

Finally, now you have more muscle mass, better circulation, and so on. This generally results in an overall higher metabolic rate because your body has prepared itself to provide you with more energy at all times. The higher metabolic rate burns more calories even when you aren't exercising and allows you to exert yourself even more the next time you do exercise.

So there's a lot more going on than the simple "1 Calorie will lift 155 pounds to 20 feet in the air". You body changes with exercise and that is where the real weight loss begins.

Re:Still have to eat well.

[dfghjk]

People who believe that weight gain or loss is a simple matter of calories versus demand have no concept of "plateaus". They've never had to battle weight problems either. A body that believes it's starving will do everything it can to preserve its weight.

Re:blood sugar levels

[slimjim8094]

Ketoacidosis is when your body, which creates acetones naturally, can't clean those acetones out of the blood. So, you get nail-polish breath, which, if medical personnel aren't careful, can smell like booze. That's bad because hyperglycemia can produce mental symptoms similar to drunkenness.

P.S. I'm a NJ EMT-B, and we frequently get calls where policemen want us to check out a drunk, with booze breath and all the mental signs like belligerence. They were really a diabetic at least 10% of the time.
Sorry for the OT