The gastrointestinal tract (GIT) plays a central role in the control of energy balance. Many molecules produced by the GIT exert hunger or satiety effects on the brain. Ghrelin is a peptide produced mainly by the stomach's oxyntic cells that stimulates ghrelin secretion in the hypophysis and has some neuroendocrine activities. However, its orexigenic properties are the most relevant to us and ghrelin is the only known peripheral orexigenic hormone (Date, 2012). Cholecystokinin (CCK) is a peptide produced mainly in the duodenum and jejunum that acts on the vagus nerve and directly on the hypothalamic nuclei. CCK is an anorexigenic factor and it reduces food intake, meal size and duration (Murphy et al., 2006). Three other related hormones are pancreatic polypeptide (PP), amylin, and peptide YY (PYY). PP is a peptide produced by the endocrine pancreas in relation to the caloric content of meals, and it reduces food intake both in rodents and humans. Amylin is a peptide co-secreted with insulin; its main effect on food control is a reduction of meal sizes and food intake (Murphy et al., 2006). Peptide YY (PYY) is produced in the gut and is similar to PP. PYY is stored in intestinal cells and released into the circulation as PYY3−36, a truncated form of PYY. The release of PYY3−36 is dependent on a meal's caloric and fat content (Veldhorst et al., 2008). The glucagon-like peptide 1 (GLP-1) is produced by the cleavage of pro-glucagon gene in the intestine. It acts as incretin at a pancreatic level, promoting insulin secretion and as neuro hormone on hypothalamic nuclei, inducing satiety (Valassi et al., 2008).
AMPK and sirtuins are the interface between the metabolic stimuli of nutritional ketosis and the downstream signaling that influences expression of proteins related to bioenergetics and antioxidant defense. Some of the primary downstream signaling molecules involved include PGC-1α, FOXO3a, nuclear respiratory factors 1 and 2 (NRF-1 and NRF-2), mitochondrial transcription factor A (TFAM), and NFE2L2.
Hey there… I’m new to keto, so I’m hoping my questions don’t come across as really stupid. Your bread looks great, and if I can get bread again, then that’s simply awesome. The pictures remind me of banana bread. Is there a way of adding this flavor without going insanely overboard on the carbs? And without that artificial banana taste? Also, would this recipe work as muffins? Thanks, Kelly
Metabolic syndrome (MetS) is the commonly observed clustering of obesity, hypertension, dyslipidemia, and insulin resistance. The components of MetS occur together more often than expected by chance and display significant heritability. Investigations into monogenic diseases that model features of the common MetS have uncovered responsible genes. Genome-wide association studies (GWAS) of the components of the MetS have been enormously successful. Meta-analysis of public GWAS data and risk-score analysis are revealing the role of common single-nucleotide polymorphism genotypes in MetS pathophysiology. A pleotropic polygenic architecture underlies MetS, making it a fascinating complex trait. Research will continue to uncover how metabolic pathways interact to form the MetS and its subsequent risk for atherosclerosis and diabetes.
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Have you heard all the buzz about the keto diet and want to know more? Did a friend tell you they’re “in ketosis” and you got interested? Here’s everything you need to know about ketogenic diets and being in ketosis for fat loss, brain function, satiety, and performance. Editor’s Note: This article is being updated … Continue reading The Keto Diet: Next Big Thing or Dangerous Fad?
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At the University of Leicester, scientists have showing that the level of sugar in your blood can affect blood vessels which in turn can have potentially dangerous effects on your heart and blood pressure. Glucose has an important role to play in the normal functions of the cardiovascular system. Untreated high sugar levels can lead to life threatening illnesses.
It’s a habit to enjoy a brie cheese for desert instead of a piece of chocolate cake but each are favored deserts in France. I’m personally more satisfied after a 350 calorie sized wedge of brie than the same number of calories of cake.. which will give me sugar crash and .. really I’d like two slices of cake(I’ve got a sweet tooth that once I get going it wants to keep being fed)
Although mitochondrial ROS (mtROS) are generally considered harmful, which is certainly the case at high concentrations, modest levels stimulate necessary biological processes such as proliferation, differentiation, and immunity . Adaptations that enhance resistance to oxidative stress are also induced by mtROS , possibly decreasing net ROS production during basal metabolism. This adaptive response is called mitohormesis [4–6] and is a promising mechanism through which lifestyle interventions that enhance mitochondrial function may, in turn, enhance resistance to chronic and degenerative diseases.
Various strategies have been proposed to prevent the development of metabolic syndrome. These include increased physical activity (such as walking 30 minutes every day), and a healthy, reduced calorie diet. Many studies support the value of a healthy lifestyle as above. However, one study stated these potentially beneficial measures are effective in only a minority of people, primarily due to a lack of compliance with lifestyle and diet changes. The International Obesity Taskforce states that interventions on a sociopolitical level are required to reduce development of the metabolic syndrome in populations.
What causes high cholesterol? High cholesterol is a risk factor for heart attacks and coronary heart disease, because it builds up in the arteries, narrowing them. It does not usually have any symptoms, and many people do not know they have it. We look at healthy levels and ranges of cholesterol, at ways to prevent it, and medications to treat it. Read now
The ketogenic diet is high-fat and low-carb, and if you pay attention to food and nutrition trends, then you already know that creative recipes for this weight-loss plan are all over social media. If you've gone keto or are thinking of trying it, check out these tasty morning meal ideas to help you stay full, score energy, and leave you feeling satisfied.
Hi Maya, I have made this twice and the first was actually closer than the second! The second one was raised really well when I put the foil on for the last 10-15 mins of cook time and when I took it out 12 mins later it had completely fallen! Now it is almost wet in the center though there are air pockets in it, it’s very odd. The first loaf was pretty flat the whole time and I am pretty sure that was because I didn’t have my egg whites whipped enough but they were spot on for the second loaf. I am also thinking it might be my baking powder after reading some of the comments. I plan to try again and just use a baking soda/cream of tartar mix rather than the baking powder. Any other suggestions? Anyone? LOL!
Weighed my ingredients…used Jay Robb Psyllium ground down to half the amount exactly…used almond flour from nuts.com….used All Whites 100% Egg Whites. Bread fell about one minute after I took it out of the oven. Do you cool yours out of the pan or in it? Does that matter? Could that be the problem? Or could it be my vinegar? Have had it a few months…does it get old? Help!!! I promised my husband if he let me spend all this $ on ingredients I could give him a nice loaf of bread for sandwiches! So disappointed! But determined!
359. Shelar S. B., Narasimhan M., Shanmugam G., et al. Disruption of nuclear factor (erythroid-derived-2)-like 2 antioxidant signaling: a mechanism for impaired activation of stem cells and delayed regeneration of skeletal muscle. FASEB Journal. 2016;30(5):1865–1879. doi: 10.1096/fj.201500153. [PMC free article] [PubMed] [CrossRef] [Google Scholar]
Well good luck Tiffany, I hope it works for you. I totally understand and feel your pain :). I have been trying to do the Protein Bread FOREVER! And nothing, I mean nothing, buying Jay Rob brand, buying a new stand mixer, everything I could think of and nothing ever worked and still doesn’t. I can make the buns and they are acceptable, but I would so love to make the loaf. Anyway, I’m wondering, since I live in Florida, does the atmophere, weather have anything to do with it? It is very humid here. Maybe that’s something that needs to be addressed??
I have AS and am on a no starch diet to control the pain, which works very well for me. So I’m wondering if you have any idea how much starch is in the PH before I order it only to have the iodine test turn it black for starch, which would mean I can’t use and I’d have to throw it out? I can mix up my own baking powder without corn starch and all of the other ingredients are safe for me to eat, so my only concern is the PH. It looks so delicious and I’ve yet to find a truly tasty starch free bread recipe.
Although resting skeletal muscle is less metabolically active than the heart, kidneys, brain, or liver, it rivals even the brain in being the body's most metabolically demanding tissue when considered relative to total tissue mass . Physical activity can greatly increase this demand, making exercise a practical and powerful way to induce bioenergetic adaptations.
I have made your sub bread a few times with not good results. Tasted ok but it was gummy in the middle. Tonight I made the bread and it looked beautiful in the oven but when I took it out it deflated and was completely hollow in the middle. lol. This time I weighed everything to the T. I used Honeyville almond flour, liquid egg whites, and psyllium powder. Think I will skip trying the bread and try the sub bread again one more time. Probably made the sub bread 4x and all times came out gummy….grrrr. Hate to give up because the taste was good. Any suggestions??
Having adequate blood levels of vitamin D may reduce the risk of insulin resistance in people who are obese. There is some evidence that a certain blood level of vitamin D is needed for normal glucose metabolism in women who are overweight and obese (but not diabetic), but it is not clear whether any further benefit is gained with higher blood levels.
Just made this and as a normal bread lover, I am very impressed! But do have a question. Can you over cook this? Mine seems a bit light inside, like a teenie bit mooshy, and can’t see it holding up in a sandwich. The temp was at 200 inside but I had already had it in for like 50 minutes longer than the posted time and I could still hear a little squish but didn’t want to over cook.
Acetyl-CoA can be metabolized through the TCA in any cell, but it can also undergo a different process in liver cells: ketogenesis, which produces ketone bodies. Ketone bodies are also produced in mitochondria, and usually occur in response to low blood glucose levels. When glucose levels are low, oxaloacetate is diverted away from the TCA cycle and is instead used to produce glucose de novo (gluconeogenesis). But when oxaloacetate is unavailable to condense with acetyl-CoA, acetyl-CoA cannot enter the cycle, and so the body has evolved an alternative way to harvest energy from it.
While there have not been large studies that show the relationship between the ketogenic diet and cancer, we will be publishing a case study about that topic. The author failed to comment that pediatric patients with epilepsy are on the diet for usually about 2 years with no harmful effects. Before the false studies about heart disease and fat, the low carb diet was a respected way to lose weight. Studies into our metabolism show we can use both fat and carbohydrate as fuel. So stepping away from our high carb diet- I am sorry to say that we eat more carbs since the 70s with most of it processed and we now use high fructose corn syrup to sweeten products and we have a wide spread childhood obesity problem. If cholesterol is a concern try plant sterols and stenals to block cholesterol from the receptors in the body. So much more can be said about a keto diet than this article states
AMPK is activated through phosphorylation of the Thr172 residue of the AMPK α catalytic subunit [174–176], and this phosphorylation is largely regulated by molecules related to bioenergetic homeostasis including AMP, ADP, catecholamines, adiponectin, glycogen, and insulin. In general, AMPK is activated by energy deficit and induces signaling that upregulates energy production. AMP and ADP are direct byproducts of energy depletion while adiponectin and catecholamines serve as endocrine signals to increase energy production, often in response to energy depletion. In contrast, indications of energy surplus, such as glycogen and insulin, inhibit activation of AMPK. Nutritional ketosis increases the aforementioned factors that activate AMPK and decreases those that inhibit AMPK, suggesting that nutritional ketosis is similar to caloric restriction in inducing a signal of energy depletion.
I have been making Maria’s bread in my convection oven for a while and I had to lower the temp considerably to make sure it didn’t burn on the outside (even with a shorter baking time). I have a “portable” convection oven and I had always assumed that convection was the way to go for baking. Then I read some more about it and saw that convection is best for meats, etc. but not for baking, and I tried using the ‘normal” baking setting. My bread was MUCH better baked on normal. I used the temperature in the recipe and the timing and it came out perfect. No monkeying around with settings or duration.
In order to best investigate the efficiency of different fuels, one needs a closed system, where the substrate conditions can be changed and the oxygen consumption and work done can be accurately measured. Isolated (ex-vivo) animal hearts are the best model to study these variables, as it is easy to manipulate the fuel provided (i.e glucose, ketones), to measure the oxygen use and also the amount of work (how much fluid is pumped).
I’m discouraged to see that nowhere in the article nor in the comments is there a mention of a diet’s best fit to genetics. Consider if someone is an APOE E2 carrier and/or has certain polymorphisms of the APO5 gene. These are quite rare in Okinawa but much more prevalent in the USA (12% of the population). According to a number of well-designed studies, these genetic characteristics point to a higher fat, lower carbohydrate diet as beneficial and even a “moderate” carb diet as problematic.
My blood sugar is in the pre-diabetic range. D-ribose raises my blood sugar quite a bit. Test and see what it does for you before committing to taking it. Start testing your blood sugar 1/2 hour after taking the D-ribose and every 1/2 hour for about 2 hours to fully test the effects. If you take it in a liquid on an empty stomach, it can get into your bloodstream pretty fast.
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More recently a community of researchers and athletes have emerged who feel that following a ketogenic diet offers a performance advantage, especially to endurance sports where athletes are more likely to run out of stored carbohydrate during the event. However the evidence remains inconclusive and research is ongoing to provide a definitive answer to as to if a ketogenic diet offers a performance advantage.
When you eat out at a nice place, what comes first? Oh, right. The so-perky-you-want-to-strangle-her girl named Brittany whose pleasure it is to serve you today. But I was talking about the meal itself. Most non-fast-food meals start out with a good salad. What could be healthier? Salads are generally low in both calories and carbohydrates. That means they are good for controlling blood sugar and controlling waistline expansion. An added bonus: if you get filled up with salad, you’ll be less hungry when it comes to the rest of the meal—so you’ll eat less of the stuff that’s “bad” for your blood sugar log. Eating less of that other stuff will help you with Tip Number 4.
Metabolic syndrome is a burgeoning global problem. Approximately one fourth of the adult European population is estimated to have metabolic syndrome, with a similar prevalence in Latin America.  It is also considered an emerging epidemic in developing East Asian countries, including China, Japan, and Korea. The prevalence of metabolic syndrome in East Asia may range from 8-13% in men and from 2-18% in women, depending on the population and definitions used. [29, 30, 31]