Principles of Endocrine Physiology…What is an Islet Cell?

The INTRAFITT Individualized Nutrition and Exercise Program was developed and established in California- 1992 in an effort to educate individuals seeking optimal levels of health, fitness and performance on the effect that diet and exercise has on the major regulatory systems of the human body (Nervous System and the Endocrine System) and their consequential effects on the Re-Programming Aspects of the Human Body.
The INTRAFITT Program concepts and applications are 100% valid and applicable and have been accepted entirely by the Scientific Community currently exploring the dual science of “Diet and Exercise Neuroendocrinology” and “P.N.E.I” (Psycho-Neuro-Endocrino-Immunology) and are supported by a myriad of abstract studies and published excerpts such as the following taken from the text book entitled Principles OF Physiology / General Principles Of Endocrine Physiology.

This text may be purchased at: http://www.amazon.com/Principles-Physiology-Robert-M-Berne/dp/0323008135

ORGANIZATION OF THE ISLET OF LANGERHANS

The “primary” pancreatic hormones, insulin and glucagon are two of the most powerful metabolic regulators concerning the metabolism of body fat, the maintenance of blood glucose levels and the production and maintenance of lean body proteins. As you will discover, the insulin/glucagon axis is perhaps the most important focus in the development of safe and effective weight management, health enhancement and performance nutrition programs.

The islet cells of the pancreas are composed of 60% beta cells (b-cells), the source of insulin and 25% alpha cells (acells), the source of glucagon. The remaining 15% of the islet cells secrete the peptides somatostatin, from the delta cells (d-cells) and pancreatic polypeptide from the F-cells. The strategic location of the islet cells reflect their functional role. Insulin, glucagon and the pancreatic enzymes are secreted in response to incoming nutrients from the diet as well as from gastrointestinal secretions, which ultimately reflect the concurrent nutritional status of an individual.

Additionally, the location of the islet cells force their secretions into the pancreatic vein, which integrates at the hepatic portal vein and empties into the liver (the central organ in nutrient traffic).

Insulin and glucagon coordinate the direction of incoming nutrients from the diet via the hepatic portal vein. Insulin and glucagon also control and direct the flow of endogenous substrate (once it has been broken down and released), such as stored body fat, glycogen and amino acids, derived from the protein structures of the body.

Since the liver is the first organ to come in contact with insulin and glucagon (once these hormones have been released by the islet cells), it is therefore exposed to higher concentrations of these hormones, then are the peripheral tissues (muscle tissue and adipose tissue). Consequently, the liver can very efficiently modulate the release of these two hormones to the peripheral tissues, therefore allowing for more or less of the hormones to circulate throughout the body.

NOTE: Due to the liver’s high exposure to insulin, it should be clear as to why fatty deposits can develop so efficiently within the liver thus contributing to the very prevalent condition know as Fatty Liver Disease.

Because Insulin and glucagon are secreted together and act reciprocally it is perhaps more beneficial to focus on the ratio of insulin and glucagon concentration in blood plasma, rather than the absolute concentration of each hormone respectively.

You can reach me with your questions at gladiator@intrafitt.com or visit us at www.intrafitt.com

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PLAN YOUR DAY OR PLAN TO FAIL….STOP WASTING TIME

There goes the alarm. You wake up with coffee and juice, get the kids off to school and head for work where your agenda is already filled with projects or meetings. After the morning dash comes long hours behind a desk, in front of a computer, in the car or out at the work site. By midmorning, your blood sugar is so low that you’re craving food loaded with sugar and fat. By remarkable coincidence, the vending machine, canteen or a box of donuts that one of your colleagues picked up on the way to work is calling your name. Then it’s lunchtime, a meal many of us skip altogether, or turn into a business meeting. After a day like this, it’s no surprise that many of us consume our entire day’s calories at night, which is usually the only time of day when our stress level is lower and/or we feel like we have the time to sit down and enjoy a meal. In fact, many of us associate relaxation with eating and/or snacking on high-calorie, high-fat foods before, during, and after dinner.

Fortunately, inside the new millennium, we see more and more people rejecting this routine and taking responsibility for their health through better nutrition and regular exercise. But how is it possible to incorporate good nutrition and fitness into a schedule like this?

Plan, Plan, Plan!

Remember, If You Fail To Plan, You Plan To Fail; It all begins with placing your nutrition and exercise program at the top of your priority list and then learning how to use those excellent organizational and time-management skills that you use at work to plan your healthy life?

Stress and Disease

Many of us put off good eating and exercise habits because we feel our lives are often times to hectic to try and change or add anything to our already busy schedules. The fact is, unless we learn how to eat and exercise optimally, each day, our lives (much like a “positive feedback cycle) will only become more difficult to manage and deal with as our minds and bodies continue to deteriorate. Thousands of scientific studies have shown a direct relationship between increased levels of stress, impaired thinking and judgment, decreased physical and mental conduct and poor eating habits. Consequently, chronic and degenerative diseases continue to rise as our desire and level of commitment to do anything about it steadily declines.

Optimal Fuel For Optimal Performance

Think of your body as a High Performance Race car. If you want it to perform (strength, speed, endurance, sexual drive etc…) you need to feed and train it optimally every day! Unfortunately, in our society, medications and supplements have become known and recognized as a convenient replacement for “Primary Nutrition” when in fact these products taken over a period of time have been shown to have more related side effects than the disease and symptoms they are being used to treat. Viagra and other OTC (over the counter) sexual aids for example are really nothing more than an expensive and perhaps dangerous replacement for eating the correct amount of nutrients and engaging in regular strength training and cardiovascular exercise.

So What’s The Answer?

Some would say “discipline” however the answer truly is knowledge, planning, and application. Sound’s simple and in fact it is. If you knew exactly how, what and when to eat and exercise each day in order to reprogram your body to be fit and lean for the rest of your life, chances are you would feel more compelled to do just that. (click here to learn how) If however, you simply cannot make the commitment to change your eating and exercise habits at this point in your life for whatever reason, there are other health alternatives that you can integrate right away that will certainly begin to improve =your body’s Health, Fitness and Performance!

Nutrient Dense Foods

Even if you don’t have time to learn the applications associated with optimal eating habits, you can at least learn and apply basic nutrition protocol such as lowering your fat intake and increasing your fiber intake. Eating lean or low fat protein foods such as skim milk, low fat or nonfat cheese, low-fat yogurt, lean beef, ham, turkey, chicken and tuna as well as high-fiber carbohydrates such as whole-grain cereals, beans, breads, fruits and vegetables will immediately begin to enhance your body’s performance!. These foods provide staying power because they take longer to digest, thus releasing energy into the body slowly.

Plan Alternatives

When you eat nutrient -dense foods during the day, you are unlikely to be as hungry at night, and will therefore be more satisfied with a lighter dinner. To get into this routine, try the following guidelines and suggestions and see if you don’t begin to perform better immediately:

  • Find low-fat, high-protein foods in single serving packages.
  • Keep convenient primary nutrition available at all times in your office or car
  • Check your vending machine for acceptable choices such as low-fat snacks (baked chips, pretzels etc…)
  • At business meetings, offer bagels with low-fat cream cheese as an alternative to donuts.
  • Keep small cans of V-8 juice, water packed tuna and tiny applesauce containers in your desk or with you at work in a thermal food bag.
  • Low-fat microwave popcorn and pretzels are favorite afternoon snacks, and fruit is the original fast food.
  • Organize what you’ll eat for the week by purchasing foods you need on a weekend shopping trip. Then keep them handy.
  • Cook on weekends and freeze one-serving portions to take with you for lunch. Pasta salads with steamed vegetable and fat-free dressings keep well in the refrigerator for a few days.
  • Eat a high-fiber breakfast of whole-grain cereal with skim milk, or make a fruit smoothie with a high-grade protein powder and yogurt as a liquid breakfast.
  • Bring your own bagel with a yogurt or fat-free cottage cheese with fruit (pineapple) to work when you have to skip breakfast at home.
  • Other easy items are fat-free crackers, string cheese, turkey or beef jerky, or Gobble Sticks.
  • When you are stuck at a fast-food restaurant, choose food items that are low in fat and order salads with chicken or beans along with a low-fat dressing choice.
  • After work, remember that, although alcohol is a carbohydrate, it can only be used and metabolized by the liver. With time, planning your meal for work will become second nature. Most people find it helpful to actually schedule their snacks and meals into their daily calendar just as they would an important meeting.

Add Exercise

Use your lunchtime to walk or work out, then eat wholesome nutrient-dense foods at break times. There are many compact inexpensive pieces of home equipment you can use in front of the TV after the kids are in bed, such a slide board, home step or an aerobics video. As you continue to exercise, your muscle mass will increase, which will speed up your metabolic rate. Remember that muscle tissue burns calories, while fat tissue is stored calories. Don’t watch the scale to determine your progress, instead, monitor your energy and strength levels and pay attention to how your clothes fit.

In Summary

If you can apply all of the organizational skills and qualities that have made you successful in your work environment to your daily eating and exercise habits, you will find that achieving and maintaining Health, Fitness and Performance is really nothing more than “Planning Your Nutrition”.

Be sure to visit me at our website:  http://www.intrafitt.com/ or email me anytime at gladiator@intrafitt.com!  I would especially like to hear from you if you are trying to reconcile diabetes or any other health-related disease! You can also pick up your individualized nutrition plan on our site.

In strength and honor,

William Smith/aka Thunder of the American Gladiators