In rats fed a KD, Ziegler et al (2003) found an increase in antioxidant activity using a luminol oxidation assay in the hippocampus, and a four-fold increase in glutathione peroxidase activity. Consistent with these findings, Jarrett et al (2008) recently reported an up-regulation of GSH biosynthesis in adolescent rats fed a KD. Furthermore, these investigators observed improved mitochondrial antioxidant status, and proposed that these changes were responsible for preventing mitochondrial DNA from oxidant-induced damage. Collectively, these studies suggest that the KD may indeed exert neuroprotective activity.
It is well known that an increase in the mitochondrial membrane potential (▵ψ) can promote mitochondrial reactive oxygen species (ROS) generation through increased electron shunting (Votyakova et al., 2001). Mitochondrial uncoupling proteins (UCPs) – which are activated by fatty acids – increase proton conductance and dissipate ▵ψ, thereby decreasing ROS formation (Mattson & Liu, 2003). Recent studies have implicated UCPs as potential mediators of a neuroprotective effect of the KD. Up-regulation of UCP2 expression in transgenic mice reduced seizure-induced neuronal cell death, and was associated with enhanced ATP levels and decreased ROS production (Diano et al., 2003). In normal rats, a high-fat suckling diet was protective against kainate-induced neuronal death in immature rat hippocampus, effects that were attributed to fatty acid-induced increases in UCP2 expression and reduction in ROS production (Sullivan et al., 2003). And finally, KD treatment in normal juvenile mice led to enhanced hippocampal expression and activity of all three known brain-localizable isoforms of UCP (i.e., UCP2, UCP4 and UCP5), and correlated with significant decreases in ROS levels (Sullivan et al., 2004).
Furthermore, if the KD increases GABA levels in the brain, then such an effect is approximated by vigabatrin, an irreversible inhibitor of the degradative enzyme GABA-transaminase, as well as by tiagabine, a GABA re-uptake blocker that interferes with presnaptic GABA transporters (White et al., 2007). Yet, the anticonvulsant profile of the KD is distinct from that of vigabatrin and tiagabine (Hartman et al., 2007). The general approach of deriving another pill that enhances brain GABA levels may not be relevant or viable, since many seizure types seem to be exacerbated by agents that contribute to enhanced tonic inhibition, and extrasynaptic GABA receptors that mediate tonic inhibition are more sensitive to elevated ambient GABA concentrations (Sazgar & Bourgeois, 2005). Indeed, increased GABAergic inhibition in the cortex appears to underlie the mechanism of synchronization and seizure generation in two mouse models of autosomal dominant nocturnal frontal lobe epilepsy (Klassen et al, 2006)
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Martina’s newest cookbook is not just a comprehensive guide to eating for the ketogenic diet, it is also gorgeous eye candy! It is sheer pleasure just to browse through her gorgeous photographs, wile you drool over the delicious recipes. I love Martina’s recipes especially because they are made with wholesome, real food ingredients, and she is very knowledgeable on how to best source ingredients so they are both tasty and health building. Every recipe is explained clearly and well organized, so you can always get great results when making them at home. If you are following a keto or low-carb lifestyle this book is a must have!
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Menu Diet Keto – Diet ketogenik merupakan diet rendah karbohidrat namun tinggi lemak yang menawarkan banyak manfaat bagi kesehatan. Lebih dari 20 penelitian menujukkan bahwa jenis diet ini dapat membantu menurunkan berat badan dan meningkatkan kesehatan. Diet ketogenik ini juga mungkin bermanfaat bagi penderita diabetes, kanker, epilepsi dan juga penyakit alzheimer.
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In support of this, Yudkoff and colleagues have published widely on the impact of ketone bodies on brain glutamate and GABA metabolism (Yudkoff et al., 2007). In one study, the addition of either acetoacetate or β-hydroxybutyrate was associated with diminished consumption of glutamate via transamination to aspartate and increased formation of labeled GABA (Daikhin et al., 1998). Ketone bodies had earlier been shown by the same group to enhance synthesis of GABA in synaptosomes prepared from rodent forebrain (Erecinska et al, 1996).
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The developers of the app claim that it is one of the most comprehensive and also the easiest carb-restrictive trackers and macronutrient counters in the market today. You can easily log your meals and you can input data via voice, camera or search. The huge library of the app consists of more than a million science-verified foods. In addition, there is a barcode scanning feature that enables you to instantly pull data.
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Typically it is discovered that about 80% of individuals lead an undesirable way of life. It incorporates inexpensive food, a stationary way of life, or an uneven eating routine. These poor methodologies may lead them towards weight, cardiovascular sicknesses, hypertension, and hepatic issue. Numerous individuals move towards abstaining from excessive food intake and overwhelming exercises in the rec center. It very well may be useful; however regularly individuals tired of it. It requires much exertion and investment alongside consistency. Keto diet is likewise one of them yet the best thing about this eating routine is that it gives you snappy results. You can without much of a stretch, keep up your body shape by utilizing keto dietary enhancements. In this article, we will present a stunning and new dietary improvement that is known as Slimlinic Keto. As its name demonstrates that it will give you successful and fast results. Presently we will examine the working of this enhancement, advantages, and fixings are additionally portrays here. So how about we begin.
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All you need to do is scan a product using its barcode. The app recognizes more than four million barcodes! An alternative is to type the name of the food item or the name of the brand in the app’s search bar. Then indicate the amount of the food product that you’ve consumed. The app will show you a breakdown of the foodstuffs you ate including the quantity of carbs, fat and proteins. If you’ve set your personalized macros, you’ll get specific info about how much you should be having.
What investigators have elucidated over the past decade or so is that a variety of molecular, genetic, cellular, and metabolic factors are likely contributory to the clinical effects of the KD. As a generalization, it is becoming widely accepted that the mechanistic underpinnings of the KD are likely multiple, parallel, and possibly synergistic (Bough & Rho, 2007).
As a fellow blogger, I have known Martina for a couple of years. I have been thrilled to see her remarkable development to one of the leading bloggers in this niche. I am delighted to see that her new cookbook is really impressing! With its amazing quality, the book simply stands out from the grey crowd of the numerous low-carb and ketogenic cookbooks. That’s why I am happy to recommend the book to anybody who seeks the latest information about healthy nutrition and the best, carefully developed ketogenic recipes.
Munculnya beragam jenis diet bisa bikin bingung. Berbagai manfaat dari setiap diet terdengar sangat menggoda, apalagi dengan klaim “efektif menurunkan berat badan”. Namun, jangan asal diet! Cari tahu dulu dengan jelas mengenai diet yang akan Anda jalani. Pastikan apakah sesuai dan aman untuk Anda. Salah satu jenis diet yang sedang banyak digemari yaitu diet keto. Diet keto adalah salah satu pola makan yang dianggap ampuh menurunkan berat badan secara cepat dan efektif.
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Resep Alpukat Panggang Keju Mozarella – Awal jalani diet Keto, nggak sengaja baca status fbnya mba Dita Nadia yang majang foto alpukat panggang yang menggiurkan. Katanya menu ini menu sarapan orang luar sono. Wuih kayaknya enak banget, langsung ngiler. Tapi baru keingat, kan saya nggak punya oven, gimana manggangnya dong 😀 Langsung kepikiran pengen punya oven, …
Berapa banyak karbohidrat dalam diet karbohidrat rendah
One highly studied mechanism implicated in the clinical benefits of calorie restriction involves sirtuins, a large and diverse family of enzymes that regulate gene expression. The first sirtuin, silent information regulator 2 (Sir2), was described in yeast. Sir2 is a class III histone deacetylase that uses the cofactor nicotinamide adenine dinucleotide (NAD+) in a catalytic reaction that releases nicotinamide (a feedback inhibitor) and O-acetyl ADP ribose (Imai et al. 2000; Marmorstein 2004; Sauve et al. 2006). It has been reported that increased Sir2 activity lengthens life span, and that calorie restriction increases Sir2 levels and does not promote longevity in SIR2 knockouts (Kaeberlein et al. 1999; Lin et al. 2000, 2004; Tissenbaum and Guarente 2001; Rogina and Helfand 2004). In mammals, calorie restriction increases the expression of Sirt1, the Sir2 mammalian ortholog, in various tissues, including brain. Resveratrol, a natural Sirt1 activator found in red wine, lengthens the life span of mice and prevents the age-related deterioration of their motor function (Cohen et al. 2004; Baur et al. 2006). Additionally, resveratrol stimulates AMP kinase activity in neurons (Dasgupta & Milbrandt, 2007), and more importantly, protects against kainic acid-induced seizures and oxidative stress in rats (Gupta et al., 2002).