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Επιστροφή στο Forum : Έρευνες-Χρήσιμα αρθρα(για αρχάριους κ όχι μόνο) by Primordial Performane



sofos
29-06-11, 00:01
σορρυ που τα εβαλα τοσο χυμα,πιστευω ειναι ωραια αρθρα και τα ποσταρα για να τα συζητησουμε και εδω

Devil
29-06-11, 03:33
Carbs Plus Stress Increases Estrogen

Posted on May 31, 2011 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/carbs-plus-stress-increases-estrogen.html) by Matt Porter (http://www.primordialperformance.com/blog/author/matt-porter)


If you are a person who wants to attain a leaner, more define physique, than you need to take action to lower cortisol levels and lower your carbohydrate consumption.
… And here is why
There was a fascinating study performed by researchers from the University of Birmingham that examined Glucocorticoid (cortisol) & insulin regulation and how it affects aromatase activity in human adipose tissue, revealing different outcomes in men and women.
In this study, researchers wanted to examine insulin & cortisol’s role in potentiating aromatase activity in men and women by taking samples of subcutaneous and omental (visceral) adipose tissue for rigorous testing.
The research candidates were premenopausal women (7) and postmenopausal women (10) and 9 men. The researchers found that the male candidate’s basal aromatase activity was significantly higher in the subcutaneous tissues opposed to omental (visceral) tissue with cortisol + insulin present. Insulin appeared to exacerbate cortisol’s effect in promoting aromatase activity.
The female test subjects had similar results as the males, but even more aromatase activity with insulin + cortisol present. This small piece of the study reveals that subcutaneous adipose tissue has a much greater affinity for aromatase activity than omental (visceral) fat in both genders.
When they examined the differences between pre & postmenopausal women and their reaction to insulin + cortisol the results revealed that postmenopausal women had high aromatase in the omental (visceral) tissues than premenopausal women. However both pre & postmenopausal women revealed the same response to aromatase activity in the subcutaneous tissues.
Sex steroids such as Dhea, Androstenedione, Estrone, Testosterone etc… may regulate adipose mass by increasing preadipocyte proliferation, differentiation, and adipocyte size through effects on lipolysis (fat-loss) and lipogenesis (fat accrural).
Insulin plays a crucial role in adipocyte proliferation and differentiation, however in this study, insulin ALONE has no effect on aromatase expression, whereas insulin + cortisol demonstrated an additive effect on aromatase activity.
You know what that means for most people who utilize high carbohydrate diet’s to either keep dietary fat low or to gain weight?
It means that relatively high doses of insulin (think dextrose & white rice) in combination with cortisol (think low blood sugar from spiked insulin) increases aromatase activity, which promotes estrogen levels in excess.
This is extremely undesirable for favorable body composition as this phenomenon will promote proliferation and differentiation of preadipocytes, enhancing central adiposity (fat mass accrural).
http://www.primordialperformance.com/blog/wp-content/uploads/2011/05/Subcutaneous-fat-visceral-fat.jpg (http://www.primordialperformance.com/blog/wp-content/uploads/2011/05/Subcutaneous-fat-visceral-fat.jpg)
- Now what you should do –
I hope after reading this article you recognize that ingesting copious amounts of carbohydrates in your plight for ultimate muscle mass or general health (because you still abide by the USDA outdated food pyramid which is simply asinine) you understand that manipulating your insulin and cortisol levels through meticulous nutrition planning will be in your best interests.
I am NOT telling you to switch to an Atkins or Ketogenic Diet by any means, simply just to pay attention to your carbohydrate choices (high glycemic VS low glycemic) and also your glycemic loads (grams of carbs per meal). If you absolutely insist you MUST incorporate carbohydrates around the clock with each meal, make sure to keep the gram allotment low, at around 20-30 grams per meal, as this keeps the glycemic load under control. Also, employ high glycemic carbs ONLY around your weight training or high activity event. The remainder of your carbs (if you insist you need them) should be low glycemic.
I would suggest you to just use carbohydrates INFREQUENTLY, meaning pre & post training, while the rest of your meals consist of top quality protein sources and raw, undenatured fats.
Incorporating a supplement that increases growth hormone production while lowering the stress hormone cortisol would be beneficial for those striving to get as lean as possible while dieting for fat-loss or gaining mass while keeping body fat lower.
Look no further than Primordial’s EndoAmp Max, which will do just that – Increase GH & lower cortisol, while enhancing mental acuity and focus.
- Helpful tips to lower cortisol & insulin –


Deep tissue massages will relax your muscles and mind, which will lower cortisol
Keeping the glycemic load small at each carbohydrate meal will keep insulin stable
Sleeping in a silent pitch black room will initiate high quality sleep for lowering cortisol and boosting GH release
Combining essential fats to each low glycemic load meal will further lower insulin release
Supplementing with adaptogenic herbs such as magnolia bark & rhodiola lower cortisol
Incorporating fiber into each meal will keep insulin levels low
Supplementing with Primordial Performance EndoAmp will boost GH & lower cortisol


References: J Clin Endocrinol Metab. (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/carbs-plus-stress-increases-estrogen.html) 2002 Mar;87(3):1327-36. Glucocorticoid regulation of p450 aromatase activity in human adipose tissue: gender and site differences. McTernan PG (http://www.ncbi.nlm.nih.gov/pubmed?term=%22McTernan%20PG%22%5BAuthor%5D), Anderson LA (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Anderson%20LA%22%5BAuthor%5D), Anwar AJ (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Anwar%20AJ%22%5BAuthor%5D), Eggo MC (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Eggo%20MC%22%5BAuthor%5D), Crocker J (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Crocker%20J%22%5BAuthor%5D), Barnett AH (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Barnett%20AH%22%5BAuthor%5D), Stewart PM (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Stewart%20PM%22%5BAuthor%5D), Kumar S (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Kumar%20S%22%5BAuthor%5D).

Devil
29-06-11, 03:34
Don’t Get Ripped off by Carbs and Get Ripped with Saturated fat

Posted on April 23, 2011 (http://www.primordialperformance.com/blog/articles/health-and-fitness-articles-fat-loss-muscle-gain/dont-get-ripped-off-by-carbs-and-get-ripped-with-saturated-fat.html) by Matt Porter (http://www.primordialperformance.com/blog/author/matt-porter)
Which food item builds more muscle? (shown below)


http://www.primordialperformance.com/blog/wp-content/uploads/2010/12/122310_2226_12.jpghttp://www.primordialperformance.com/blog/wp-content/uploads/2010/12/122310_2226_22.jpg

I am sure most of you are familiar with the common belief that saturated fatty acids are the culprit of obesity and cardiovascular ailments. I am also sure most of you are familiar with the low carbohydrate craze that flooded the media about 10 years ago due to The Atkins Diet. Dr. Atkins ideas were definitely outside of the box, and while not perfect, they were on the right track. The recommended diet for optimal health, according to the original USDA food pyramid from 1992 is a very low-fat, low protein and high carbohydrate based diet. As we know, if this diet was truly nutritionally sound then we wouldn't be facing such a high obesity epidemic at present. It is pretty clear that the nutritional food pyramid is grossly outdated and the public needs to be properly educated on proper nutrition. In actuality, high carbohydrate consumption is truly the explanation for the growing number of people diagnosed with diabetes, high triglycerides, elevated blood pressure and obesity. People need to understand that carbohydrates are not nutritionally essential for survival. Amino acids and fatty acids are mandatory for proper manufacturing of new tissue repair, immune function, hair, skin, nails, cellular integrity, brain, and heart health.

Back in the day people survived off of protein and fats

http://www.primordialperformance.com/blog/wp-content/uploads/2010/12/122310_2226_32.jpg

For the typical desk job citizen who performs minimal daily activity, getting rid of carbohydrates in place of red meat, eggs and cheese would be in their best interest. As for extreme athletes, like Marathon runners, Football players, Swimmers, and Cyclists involved in high levels of activity, strategic carbohydrate consumption would be extremely advantageous for supplying adequate energy reserves for optimal performance. For the weight lifters, bodybuilders and fitness enthusiast's that want muscular growth and low body fat levels, trading carbohydrates for saturated fats will be extremely conducive to the goal of attaining the ideal physique. Training with weights is not extremely energy demanding and typically only lasts around an hour. Most people train in the low to medium rep range consisting of 6-12 repetitions. This will not require extreme amounts of glucose to effectively and efficiently perform. In fact, once you metabolically shift into relying on protein and fats as your primary energy substrates, you will be able to surprise yourself in the gym and become stronger without carbohydrates. When you are consuming high protein and fats and non-starchy vegetables, you will still be able to accumulate glycogen from trace carbs from protein turnover (gluconeogenesis) and vegetables. By the end of the day, your carb count could add up to 30-70 grams depending on your total
"When you are consuming high protein and fats and non-starchy vegetables, you will still be able to accumulate glycogen from trace carbs from protein turnover (gluconeogenesis) and vegetables."


caloric intake and food choices. This is why I recommend people following a low carbohydrate diet to perform cardio in the morning to burn the most body fat, however, since glucose will always be low, you could benefit from cardio at any time of the day. I also advise people to weight train in the evening as you will have built up sufficient glycogen from incidental carbohydrates eaten throughout the day. Keep in mind that you can also derive energy from your creatine phosphate stores and ATP reserves. These powerhouse energy sources come into play on your first few reps during exercise. Once these fuel substrates are depleted, then glycogen will come into play. Creatine phosphate levels will be completely restored after 4 minutes of rest.
_ATP_P = ADP and Energy
_ADP + P = ATP
_Creatine = Supply of P

http://www.primordialperformance.com/blog/wp-content/uploads/2010/12/122310_2226_42.jpg
(Creatine Phosphate above)
http://www.primordialperformance.com/blog/wp-content/uploads/2010/12/fatty-acid-oxidation-300x243.jpg (http://www.primordialperformance.com/blog/wp-content/uploads/2010/12/fatty-acid-oxidation.jpg)
(Fatty acid oxidation above)



The coolest attribute to this way of dieting is that you will be a fat burning machine. You will constantly be mobilizing free fatty acids from the mitochondria and from intra-muscular triglycerides. Making the core of your nutrition plan comprised of lean red meat, whole eggs, cheese, and green vegetables will give you the option of selecting two different scenarios depending on your total caloric intake and energy expenditure. The first scenario is a muscle gaining phase. You will need to be in a high caloric surplus to accrue tissue. You will most likely stay leaner while in that surplus due to your favorable hormonal environment. Your serum insulin levels will be regulated and testosterone output will be optimized. The second scenario is entering a cutting or fat-loss phase. This will require a slight to moderate caloric deficit with less cardio then you would need with higher carbohydrate consumption.
Sample muscle gaining phase caloric equation: Sample fat loss phase caloric equation:

(Bodyweight x 20 = total calories) (Bodyweight x 13 = total calories)


Given the two scenarios, it is clear to understand that you will yield the best results with a protein and saturated fat based diet. You will stay leaner when gaining size and retain more tissue when reaching very low body fat levels, since ketones have been shown to exhibit a muscle sparing effect. An interesting study investigated the ideology that "A calorie is a calorie" is not accurate and The Laws of Thermodynamics do not apply regarding high fat, low carbohydrate diets. The study involved subjects who followed a low carb, higher fat diet and subjects who followed a low fat, high carbohydrate diet. The low carb group ingested a higher caloric value than subjects on a low-fat diet and lost more weight, in addition to burning more calories throughout the day. The low-carb group ate 54 extra calories a day and lost 5.8 kg while the low-fat group lost only 1.9 kg.
Another researcher discovered that people eating 300 extra calories a day on a low-carb diet lost a similar amount of weight. Another study I will mention is one regarding a 6-week very low carbohydrate diet and its effects on total and regional body composition. Results revealed some amazing details. Fat mass was decreased (-3.4 kg) while lean body mass substantially increased (+1.1 kg) at the end of the 6 week trial. Researchers believed that the fat loss can be attributed to decreased serum insulin levels and increased fatty acid oxidation due to elevated beta-hydroxybutyrate concentrations. This proves that a calorie is not always a calorie and different macronutrients influence specific metabolic actions in the body once consumed.
References:

1.)Kennedy AR (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Kennedy%20AR%22%5BAuthor%5D), Pissios P (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Pissios%20P%22%5BAuthor%5D), Otu H (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Otu%20H%22%5BAuthor%5D), Roberson R (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Roberson%20R%22%5BAuthor%5D), Xue B (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Xue%20B%22%5BAuthor%5D), Asakura K (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Asakura%20K%22%5BAuthor%5D), Furukawa N (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Furukawa%20N%22%5BAuthor%5D), Marino FE (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Marino%20FE%22%5BAuthor%5D), Liu FF (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Liu%20FF%22%5BAuthor%5D), Kahn BB (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Kahn%20BB%22%5BAuthor%5D), Libermann TA (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Libermann%20TA%22%5BAuthor%5D), Maratos-Flier E (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Maratos-Flier%20E%22%5BAuthor%5D), A high-fat, ketogenic diet induces a unique metabolic state in mice.Am J Physiol Endocrinol Metab. 2007 Jun;292(6):E1724-39. Epub 2007 Feb 13.



2.)Pérez-Guisado J (http://www.ncbi.nlm.nih.gov/pubmed?term=%22P%C3%A9rez-Guisado%20J%22%5BAuthor%5D), Ketogenic diets and weight loss: basis and effectiveness. Arch Latinoam Nutr. 2008 Jun;58(2):126-31

3.)Yancy WS Jr (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Yancy%20WS%20Jr%22%5BAuthor%5D), Olsen MK (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Olsen%20MK%22%5BAuthor%5D), Guyton JR (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Guyton%20JR%22%5BAuthor%5D), Bakst RP (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Bakst%20RP%22%5BAuthor%5D), Westman EC (http://www.ncbi.nlm.nih.gov/pubmed?term=%22Westman%20EC%22%5BAuthor%5D), A low-carbohydrate, ketogenic diet versus a low-fat diet to treat obesity and hyperlipidemia: a randomized, controlled trial. Ann Intern Med. 2004 May 18;140(10):769-77.

4.)Feinman RD, Fein EJ. "A calorie is a calorie" violates the second law of thermodynamics. Nutr J. 2004;3:9. doi: 10.1186/1475-2891-3-9

5.)Volek JS, Sharman MJ, Cómez AL, et al. Comparison of energy-restricted very-low-carbohydrate and low-fat diets on weight loss and body composition in overweight men and women. Nutr Metab (Lond) 2004

6.)Mayo Clinic (2003, November 12). High Saturated Fat, Starch Avoidance Weight Loss Diet Offers Good Preliminary Results.ScienceDaily (Nov. 12, 2003).

7.)Denise Gellene | Times Staff Writer, Low-fat diet not tops for weight loss. Subjects on the Atkins and Mediterranean regimens lost more in an Atkins Foundation- aided study. July 17, 2008.

8.)Essen-Gustavsson, B. & Tesch, P. A. 1990. Glycogen and triglyceride
utilization in relation to muscle metabolic characteristics in men performing heavy-resistance exercise. European Journal of Applied Physiology, 61, 5-10.

9.)Anssi H Manninen, Very-low-carbohydrate diets and preservation of muscle mass. Nutr Metab (Lond). 2006; 3: 9. Published online 2006 January 31. doi: 10.1186/1743-7075-3-9.

10.)Vazquez JA, Adibi SA. Protein sparing during treatment of obesity: ketogenic versus non-ketogenic very low calorie diet. Metabolism. 1992;41:401–14

11.)Manninen AH.
Is a calorie really a calorie? Metabolic advantage of low-carbohydrate diets. J Int Soc
Sports Nutr. 2004;1:21–26

Devil
29-06-11, 03:35
Turmeric Curcuminoids Aiding in Arthritis Pain

Posted on October 12, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/turmeric-curcuminoids-aiding-in-arthritis-pain.html) by Dylan Udy (http://www.primordialperformance.com/blog/author/dylan_udy)
http://www.primordialperformance.com/weekly_science_images/turmeric_root_against_arthritis_pain.jpg
October 14th, 2009 – Turmeric (Curcuma longa) is a plant and member of the ginger family, and among its most important functions is its anti-inflammatory effects in the treatment of arthritis. The main component of turmeric that contributes to these medicinal properties is a family of polyphenols known as curcuminoids. Of the curcuminoids, Curcumin (diferuloylmethane – Fig. 1) is the most notable, followed by demethoxycurcumin and bisdemethoxycurcumin. These constituents are found primarily in the rhizome (root) of the plant and are responsible for its anti-arthritic properties. (1)
Curcumin functions by inhibiting the transcription factors of a cell that turn on the genes coding for inflammatory proteins including cytokines and chemokines. (2) With the expression of these genes turned off, pain from rheumatoid arthritis can be greatly reduced or eliminated. Rheumatoid arthritis (RA) is an autoimmune disease that causes inflammation of joints and of the tissue around joints. (3)
In an experiment designed to discover the mechanism of turmeric’s medicinal effects in the treatment of RA, doctors at the University Of Arizona College Of Medicine conducted experiments with female rats after inducing arthritis. (4) The results showed that turmeric extract containing a high percentage of the curcuminoids have a dramatic effect on the prevention of joint inflammation and destruction. Specifically, inflammatory cell influx, joint levels of prostaglandin E2, and periarticular osteoclast formation were all significantly reduced when turmeric extract was injected intraperitoneally (into the abdomen). (4) Curcumin is well known as a molecule that can treat a plethora of health issues without the risk of any negative side effects. (5)
-Dylan Udy
References
1. Anti-inflammatory properties of curcumin, a major constituent of Curcuma longa: a review of preclinical and clinical research.
Altern Med Rev. 2009 Jun;14(2):141-53
2. Turmeric Extracts Containing Curcuminoids Prevent Experimental Rheumatoid Arthritis.
JL Funk, et al.
J. Nat. Prod. 2006, 69, 351-355
3. Rheumatoid Arthritis (RA)
William C. et al
medicinenet.com/rheumatoid_arthritis/article.htm
4. Turmeric Extracts Containing Curcuminoids Prevent Experimental Rheumatoid Arthritis.
JL Funk, et al.
J. Nat. Prod. 2006, 69, 351-355
5. Role of curcumin in health and disease
Leelavinothan Pari; et al.
Archives Of Physiology And Biochemistry, 114, no. 2 (2008): 127-149

Devil
29-06-11, 03:36
Resveratrol for prevention in human prostate cancer

Posted on October 14, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/resveratrol-for-prevention-in-human-prostate-cancer.html) by Eric Potratz (http://www.primordialperformance.com/blog/author/eric_potratz)
http://www.primordialperformance.com/weekly_science_images/res_grapes.jpgOctober 14th, 2009 – With over a decade of test tube and animal research behind resveratrolís anti-cancer benefits (http://www.primordialperformance.com/store/sustain_alpha-liqua-vade.html), it finally appears that researchers are ready to take the fast track to human clinical trials in cancer prevention and therapy. (1)
Resveratrol is abundantly found in nature in various fruits, nuts and other plants and accounts for 5 to 10% of the biomass in grape skin. (2) Over the years, resveratrol has demonstrated multiple inhibitory actions on the three stages of cancer including initiation, promotion and progression. (1-3) Part of resveratrols action in preventing initiation of cancer is from its potent anti-oxidant effect and ability to scavenge free radicals. Promotion of tumor growth appears to be inhibited by Resveratrol’s ability to exert anti-inflammatory activity through inhibition of cyclooxygenases (COX-1 and COX-2).
Resveratrol also inhibits cancer cell growth by antagonizing the action of androgens at the androgen receptor (AR) in prostate cancer cells. Whether this anti-androgenic effect of resveratrol has effects on AR in muscle, fat or mammary tissue remains to be seen.
-Eric Potratz
Founder & President


References
1. CancerPrevention and Treatment withResveratrol: From Rodent Studies to Clinical Trials
Anupam Bishayee
CancerPrevention Research,May 2009; 2: 409 – 418
2. Resveratrol: A Candidate Nutritional Substance for Prostate
Cancer Prevention
Jubilee R et al.
J Nutr.2003 Jul;133(7 Suppl):2440S-2443S
3. Resveratrol inhibits the expression and function of the androgen receptor in LNCaP prostate cancer cells.
Mitchell, S. H. et al.
Cancer Res. 59: 5892-5895. (1999)

Devil
29-06-11, 03:37
Sunlight Increases Testosterone Production

Posted on October 14, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/sunlight-increases-testosterone-production.html) by Eric Potratz (http://www.primordialperformance.com/blog/author/eric_potratz)
http://www.primordialperformance.com/weekly_science_images/sun_increase_testosterone.jpg
October 14th, 2009 – Interested in boosting your testosterone levels? Try Sunlight.
Research shows that testosterone levels are highest in men during the summer months of June though July. (1) In a study involving men between the ages of 19-30, researchers found that only 1 hour of sunlight exposure stimulated luteinizing hormone (LH) production by 69.5% (2) luteinizing hormone is the primary hormone that signals the testes to increase testosterone production (http://www.primordialperformance.com/store/sustain_alpha-liqua-vade.html).
Sunlight exposure is also the main source of vitamin D production in the body, and low vitamin D levels are a good indicator of insufficient sunlight exposure. Therefore, testing for vitamin D can be an excellent way to ensure you are getting enough sunlight for optimal testosterone levels.
The take home message – Get outside as much as possible!
-Eric Potratz
Founder & President

References
1. Variation in Levels of Serum Inhibin B, Testosterone, Estradiol, Luteinizing Hormone, Follicle-Stimulating Hormone, and Sex Hormone-Binding Globulin in Monthly Samples from Healthy Men during a 17-Month Period: Possible Effects of Seasons
Anna-Maria Andersson, et al
J. Clin. Endocrinol. Metab., Feb 2003; 88: 932 – 937.
2. Luteinizing hormone following light exposure in healthy young men
IY Yoon, et al.
Neurosci Lett, April 24, 2003; 341(1): 25-8

Devil
29-06-11, 03:37
Carbohydrates Drive Up Cholesterol

Posted on October 16, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/carbohydrates-drive-up-cholesterol.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/evil-toast.jpgOctober 16th, 2009 – Despite what your doctor and favorite fitness magazine tell you, dietary cholesterol is not the enemy. In fact, our own cells manufacture roughly 80% of the cholesterol in our body (1). Increase your dietary intake, and normally the body will compensate by producing less of its own. Decrease, and your body will make more.
So where do carbohydrates fit in to all of this?
When you ingest carbohydrates, they are broken down into glucose and released into the blood stream. This raises blood sugar levels, and the body releases insulin to deliver the sugar to the various cells in the body for use as fuel. Aside from storing nutrients in the body, insulin also stimulates the enzyme HMG-CoA reductase, which determines the rate and amount of cholesterol produced by our cells. (2) The more cholesterol our cells produce, the less they remove from the LDL particles in the blood, and the more cholesterol remains in circulation (http://www.primordialperformance.com/store/tocotrienols_vitamine_toco8.html).
Take home message – It’s the toast, not the eggs.
References
1. Protein Power
Dr. Michael Eades
New York, NY: Creative Paradox LLC (2000)
2. Interaction between cholesterol and glucose metabolism during dietarycarbohydrate modification in subjects with the metabolic syndrome
Maarit Hallikainen, et al.
Am. J. Clinical Nutrition, Dec 2006; 84: 1385 – 1392.

Devil
29-06-11, 03:38
Lectins in Peanuts Clog Arteries

Posted on November 25, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/lectins-in-peanuts-clog-arteries.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/peanut%20butter.jpgNovember 25th, 2009 -A peanut butter and jelly sandwich on whole grain bread looks pretty wholesome and harmless, doesnít it? Well, looks can be deceiving. This delicious meal is packed with a deadly lectin that clogs your arteries.
The trouble seems to stem from a lectin specific to peanuts called Peanut Agglutinin(PNA). Lectins are sugar-binding proteins found all throughout nature, and are thought to play an important role in plant defense against being eaten. (1) PNA is particularly resistant to breakdown in the gut, and has been shown to penetrate the intestinal walls mostly intact and bind to the smooth muscle cells in the arteries, leading to atherosclerosis (build-up of plaque within the arteries (http://www.primordialperformance.com/store/tocotrienols_vitamine_toco8.html)) and fibromuscular lesions. (2) Aside from being a know allergen, PNA has also been shown to stimulate cellular proliferation of colon cancer cells (3).
Even if you donít have any peanut allergies, eating peanuts may still increase your heart disease and colon cancer risk (http://www.primordialperformance.com/store/tocotrienols_vitamine_toco8.html). Peanuts have side-effects, so you are probably safer choosing almond butter for that next ìnut butterî sandwich.
References -
1. Agrarian Diet and Diseases of Affluence – Do Evolutionary Novel Dietary Lectins Cause Leptin Resistance?
Tommy J?nsson, et al.
BMC Endocrine Disorders 2005, 5:10doi:10.1186/1472-6823-5-10
2. Atherogenic Potential of Peanut Oil-Based Monounsaturated Fatty Acids Diets
Loren Cordain, Ph.D.
Lipids 1998 Vol. 33 no. 2 Page 229
3. Peanut lectin stimulates proliferation of colon cancer cells by interaction with glycosylated CD44v6 isoforms and consequential activation of c-Met and MAPK
Singh R et al.
Glycobiology.2006 Jul;16(7):594-601.

Devil
29-06-11, 03:38
Carbohydrates Negatively Effect Growth Hormone

Posted on November 25, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/carbohydrates-negatively-effect-growth-hormone.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/growth_hormone.jpgWe’ve all heard that growth hormone (GH) does a ton of great stuff for our bodies including burning body fat (http://www.primordialperformance.com/store/fat-loss-stack.html), increasing protein synthesis, increasing nitrogen retention, and decreasing protein catabolism. (1) This means more muscle, less fat, and a happier, healthier, sexier you. So how can we maximize the effects and release of growth hormone we get in response to strenuous exercise?
Keep your post workout carbohydrate levels in check.
When we exercise, blood glucose and insulin levels decrease, and GH levels increase. GH levels can remain this way for an hour or more. (2) However, as soon as blood glucose and insulin levels rise, GH levels will drop back down, as insulin acts to suppress GH secretion. (3) Keeping carbohydrate intake to a minimum after exercise will keep blood glucose and insulin levels down and GH up for a longer period of time.
How do you boost GH levels and keep it elevated after a workout? Consider protein instead of carbs for your post workout nutrition!
References -
1. Amino Acids and Proteins for the Athlete: The Anabolic Edge
Mauro G. Di Pasquale
CRC Press 2008 Pages 27-28
2. Plasma insulin, growth hormone, and blood sugar during exercise in man
Sawhney RC, Malhotra AS, Gupta RB.
Indian J Physiol Pharmacol. 1982 Apr-Jun;26(2):119-24
3. Good Calories Bad Calories
Gary Taubes
Alfred A Knopf 2007 Pages 390-391

Devil
29-06-11, 03:38
Carbohydrates Can Cause Stiff Joints and Wrinkled Skin

Posted on November 25, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/carbohydrates-can-cause-stiff-joints-and-wrinkled-skin.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/advanced_glycation_end.jpgNovember 25th, 2009 – Yes, you read that right. Excessive carbohydrate consumption can speed up the aging process by producing nasty molecules called advanced glycation end-products.
Advanced glycation end products (AGE) form in the body when glucose (carbs) attaches itself to a protein (a process called glycation) without enzymatic control. The more glucose in the blood, the more this process occurs, and the harder it is for the body to reverse the process and/or dispose of harmful AGEs.(1)
Collagen proteins, found in skin, tendons, cartilage, and bones are especially prone to injurious affliction from these glycosalated molecules. As AGEs build up and cause damage to this bodily tissue, the skin will toughen and appear leathery, and joints will stiffen. (1) AGE have also been linked to other age related diseases such as Alzheimer’s disease, cataracts, diabetes (http://www.primordialperformance.com/store/sweet-serum.html), and atherosclerosis to name a few. (3)
Reducing advanced glycation end-products will involve consuming less high glycemic carbohydrates, or making sure you reduce you blood sugar by burning it off shortly after consuming a high carbohydrate meal.
References -
1. The Carbohydrate Hypothesis
Gary Taubes
Good Calories Bad Calories 2007 Pages 191-193
2. Irreversibly glycated LDL induce oxidative and inflammatory state in human endothelial cells; added effect of high glucose.
Toma L, Stancu CS, Botez GM, Sima AV, Simionescu M.
Biochem Biophys Res Commun. 2009 Oct 19 PMID: 19850013
3. Advanced glycation and lipoxidation end products–amplifiers of inflammation: the role of food
Gil A, Bengmark S.
Nutrition Hosp. 2007 Nov-Dec;22(6):625-40 PMID: 18051988

Devil
29-06-11, 03:39
Sugar Addiction is Real

Posted on November 25, 2009 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/sugar-addiction-is-real.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/addictive_qualities_of_food.jpgNovember 25th, 2009 -There is more to your sweet tooth (http://www.primordialperformance.com/store/sweet-serum.html) than simply enjoying the taste of sugary foods. You can become high on sugar, and eventually addicted.
Recreational drugs and simple carbohydrates like those found in sugary comfort foods are both involved in the reward mechanisms of the mesolimbic dopamine system and the nucleus accumbens (a collection of neurons in the brain involved in reward and pleasure). (1) Stimulation of dopamine and the reward/pleasure center in the brain lead to cravings and feelings of addiction. Once youíre hooked, regular or non-sugary foods donít have the same dopamine response, and thus leave you feeling unsatisfied. (1)
With frequent, repeated exposure to sugar, feelings of satiety decrease, meaning it takes more sugary food and a longer period of time for you to feel satisfied. (2)
Like drugs, the more sugar you eat, the more you crave it, and the more it takes for you to feel satisfied (3). It ís a vicious cycle, and something to think about the next time you find yourself staring down a pint of Ben & Jerryís.
References -
1. Deficits of mesolimbic dopamine neurotransmission in rat dietary obesity.
Geiger BM, et al.
Neuroscience. 2009 Apr 10;159(4):1193-9. Epub 2009 Feb 11.
2. Daily bingeing on sugar repeatedly releases dopamine in the accumbens shell.
Rada P, et la.
Neuroscience. 2005;134(3):737-44
3. Accumbens dopamine-acetylcholine balance in approach and avoidance
Bartley G Hoebel, et al.
Current Opinion in Pharmacology Volume 7, Issue 6, December 2007, Pages 617-627

Devil
29-06-11, 03:40
Insulin Sensitivity Affects Testosterone Levels in the Body

Posted on January 7, 2010 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/insulin-sensitivity-affects-testosterone-levels-in-the-body.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/beer.jpgJanuary 7th, 2010 - Research has shown that people with type II diabetes (http://www.primordialperformance.com/store/sweet-serum.html) and metabolic syndrome (i.e. insulin resistance) have significantly lower testosterone levels than regular men. (1,2) Insulin resistance is basically a condition where the insulin created by the body is insufficient to drive nutrients into the muscle and fat cells. This stems from having chronically elevated blood insulin levels.
Under constant stimulation from insulin, cellís become less sensitive to its effects, requiring more and more insulin to get nutrients into the cells. Therefore, anything which drives up blood sugar – like sugar, rice, pasta, beer, carbs of all kinds – and thus insulin levels can lead to a reduction in insulin sensitivity. Reduced insulin sensitivity equals lower testosterone levels (http://www.primordialperformance.com/store/sustain-alpha-liqua-vade.html).
References -
1. The dark side of testosterone deficiency: II. Type 2 diabetes and insulin resistance.
Traish AM, Saad F, Guay A.
J Androl 2009 Jan-Feb;30(1):23-32

2. Low testosterone levels are common and associated with insulin resistance in men with diabetes.

Grossmann M, Thomas MC, Panagiotopoulos S, Sharpe K, Macisaac RJ, Clarke S, Zajac JD, Jerums G.
J Clin Endocrinol Metab. 2008 May;93(5):1834-40

Devil
29-06-11, 03:40
Pomegranate Juice Increases Male Fertility

Posted on January 7, 2010 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/pomegranate-juice-increases-male-fertility.html) by Eric Potratz (http://www.primordialperformance.com/blog/author/eric_potratz)
http://www.primordialperformance.com/weekly_science_images/pomegranate.jpgJan 7th, 2010 – Pomegranate juice is rich with vitamin C and polyphenolic compounds such as anthocyanins, punicalagin, ellagic and gallic acid. It is well known that these nutrients are powerful anti-oxidants (http://www.primordialperformance.com/store/organic_vitaberry.html) which suppress and scavenge damaging free radicals – which now appear to play an important role in enhancing the health and mobility of sperm (http://www.primordialperformance.com/store/sustain-alpha-liqua-vade.html). (1)
A recent study with male rats demonstrated that 7 weeks of pomegranate consumption increased spermatogenic cell density, epididymal sperm concentration, sperm motility and decreased abnormal sperm rate, and serum testosterone levels – all important parameters of male fertility.
Sperm are especially sensitive to oxidative damage from free radicals because of the unsaturated fatty acid composition in their outer membrane. When the sperm’s membrane becomes damaged by free radicals it decreases its viability. In extreme cases, excessive free radical damage can completely inhibit spermatogenesis. (2)
Sperm are always going to generate free radicals through their natural metabolism, so it’s important to supplement the diet with potent anti-oxidants (http://www.primordialperformance.com/store/organic_vitaberry.html) to allow the body to properly protect itself.
-Eric Potratz
Founder & President

References –
1. Effects of pomegranate juice consumption on sperm quality, spermatogenic cell density, antioxidant activity and testosterone level in the male rat.
Gaffari Turk, et al.
Clinical Nutrition (2008) 27, 289.297

2. The impact of oxidants on sperm functions.
Henkel R, et al.
Andrologia 2005; 37:205-6

Devil
29-06-11, 03:41
Avoid Carbs and Stimulate Amino Acids Uptake

Posted on February 19, 2010 (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/avoid-carbs-and-stimulate-amino-acids-uptake.html) by Ken Hess (http://www.primordialperformance.com/blog/author/ken_hess)
http://www.primordialperformance.com/weekly_science_images/grilled_turkey.jpgFebruary 19th. 2010 – You’ve probably heard that eating a high carbohydrate meal after training is better than a low carb meal. However, this may not be the case. Keeping post-exercise carbohydrate consumption low can prolong the nutrient uptake window created from training (via increased insulin sensitivity). (1) This is because training increases the muscle cells demand for nutrients, including amino acids, for repair and sugars to replace muscle glycogen.
The resulting increase in insulin sensitivity (http://www.primordialperformance.com/blog/weekly-science-hormones-testosterone/insulin-sensitivity-affects-testosterone-levels-in-the-body.html) after exercise enhances the flow of nutrients to the muscle cells in need, as well as increases the use of fat as an energy source since sugars are not available. As glycogen stores fill up, however, the cells ability to take up amino acids (for growth) and fat (for fuel) will decrease.
The idea behind the high carb theory is that when you exercise, you use up muscle glycogen. The most efficient way to replenish your glycogen stores is through carbohydrate intake. If your training frequency has you exercising several times a day or every few hours, you’ll need too replace your energy stores more quickly to prepare your body for the next workout, and eating more carbs post exercise will help. If, on the other hand, you train once per day or several times a week and are more concerned with body composition, a carbohydrate restricted eating approach may prove more effective.
References –
1. Amino Acids & Proteins for the Athlete
Mauro D. Pasquale
Taylor And Francis Group 2008 Pages 356-358

Devil
29-06-11, 03:44
thanks για τα αρθρα.... αλλα εγω τι σου φταιω νυχτιaτικα να τα κανω copy-paste?

το οτι ειναι και link απο το e-shop της primordial οκ αστο... πες ειναι η εταιρια.... τα λινκ που ειχαν στα διαφημιστικα δεν τα ειδες? και μου πεις οτι δεν ξερεις τι ειναι.....

και κανε τους και μια μεταφραση στα ελληνικα.....;)

jimmy007
29-06-11, 05:01
Given the two scenarios, it is clear to understand that you will yield the best results with a protein and saturated fat based diet. You will stay leaner when gaining size and retain more tissue when reaching very low body fat levels, since ketones have been shown to exhibit a muscle sparing effect. An interesting study investigated the ideology that "A calorie is a calorie" is not accurate and The Laws of Thermodynamics do not apply regarding high fat, low carbohydrate diets. The study involved subjects who followed a low carb, higher fat diet and subjects who followed a low fat, high carbohydrate diet. The low carb group ingested a higher caloric value than subjects on a low-fat diet and lost more weight, in addition to burning more calories throughout the day. The low-carb group ate 54 extra calories a day and lost 5.8 kg while the low-fat group lost only 1.9 kg.
Another researcher discovered that people eating 300 extra calories a day on a low-carb diet lost a similar amount of weight. Another study I will mention is one regarding a 6-week very low carbohydrate diet and its effects on total and regional body composition. Results revealed some amazing details. Fat mass was decreased (-3.4 kg) while lean body mass substantially increased (+1.1 kg) at the end of the 6 week trial. Researchers believed that the fat loss can be attributed to decreased serum insulin levels and increased fatty acid oxidation due to elevated beta-hydroxybutyrate concentrations. This proves that a calorie is not always a calorie and different macronutrients influence specific metabolic actions in the body once consumed.

To θέμα είναι ότι η αυξημένη απώλεια βάρους στην κετο οφείλεται στην μείωση της κατακράτησης υγρών.

http://www.ceb-institute.org/fileadmin/upload/refman/Arch_Intern_Med_2006_166_285_Nordmann.pdf

Devil
29-06-11, 14:08
To θέμα είναι ότι η αυξημένη απώλεια βάρους στην κετο οφείλεται στην μείωση της κατακράτησης υγρών.

http://www.ceb-institute.org/fileadmin/upload/refman/Arch_Intern_Med_2006_166_285_Nordmann.pdf

βασικα ειναι ''non–energy-restricted''.... δεν εχει να κανει αν εισαι σε κετο η' με χαμηλα λιπαρα.... αν δεν εχεις ελειμα δεν χανεις....

sofos
29-06-11, 16:03
thanks για τα αρθρα.... αλλα εγω τι σου φταιω νυχτιaτικα να τα κανω copy-paste?

το οτι ειναι και link απο το e-shop της primordial οκ αστο... πες ειναι η εταιρια.... τα λινκ που ειχαν στα διαφημιστικα δεν τα ειδες? και μου πεις οτι δεν ξερεις τι ειναι.....

και κανε τους και μια μεταφραση στα ελληνικα.....;)

ελα ρε συ devil συγνωμη ειπα και γω να τα ανεβασω ετσι αλλα δε το κανα,κακως δηλαδη..για τα λινκ εννοεις που ελεγαν ολα τεστο?:unsure: :unsure: