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Topic Review
D-ribose Supplementation in Caucasian Males
Mutations that occur within the AMPD1 gene are one of the most common defects detected in the Caucasian population with a likelihood of having the mutations as 1-2%. Several studies indicate that certain variants can cause fatigue, muscle weakness and muscular cramps, however some even with these variants remain asymptomatic. Some studies have shown that oral dosages of ribose can alleviate symptoms and can improve exercise performance in those with AMPD1 deficiency, ribose may provide a direct source of energy for cells. The aim of this preliminary study was to see if oral supplementary ribose can improve the performance of a 3 minute press-up test that is aimed to test muscle stamina and muscle fatigue in healthy Caucasian males against a control of healthy Caucasian males. The results show that having a T in rs17602729 may affect press-up performance in a 3 minute test and that supplemental ribose may improve performance, however the following results need to be correlated with current literature in the area and the conclusions are still debatable. 
  • 2.3K
  • 05 Nov 2020
Topic Review
Ketoacid Analogues Supplementation in CKD
Diet is a key component of care during chronic kidney disease (CKD). In order to reduce the risk of nutritional disorders in very-low protein diets (VLDP), supplementation by nitrogen-free ketoacid analogues (KAs) have been proposed.
  • 2.3K
  • 06 Sep 2021
Topic Review
DHA and AA: Neuroprotective Nutrient
The role of docosahexaenoic acid (DHA) and arachidonic acid (AA) in neurogenesis and brain development throughout the life cycle is fundamental. DHA and AA are long-chain polyunsaturated fatty acids (LCPUFA) vital for many human physiological processes, such as signaling pathways, gene expression, structure and function of membranes, among others. DHA and AA are deposited into the lipids of cell membranes that form the gray matter representing approximately 25% of the total content of brain fatty acids. Both fatty acids have effects on neuronal growth and differentiation through the modulation of the physical properties of neuronal membranes, signal transduction associated with G proteins, and gene expression. DHA and AA have a relevant role in neuroprotection against neurodegenerative pathologies such as Alzheimer’s disease and Parkinson’s disease, which are associated with characteristic pathological expressions as mitochondrial dysfunction, neuroinflammation, and oxidative stress. 
  • 2.3K
  • 31 Mar 2021
Topic Review
Health Effects of Sweet Potato (Ipomoea batatas L.)
Sweet potato (SP; Ipomoea batatas (L.) Lam) is an edible tuber native to America and the sixth most important food crop worldwide. China leads its production in a global market of USD 45 trillion. SP domesticated varieties differ in specific phenotypic/genotypic traits, yet all of them are rich in sugars, slow digestible/resistant starch, vitamins, minerals, bioactive proteins and lipids, carotenoids, polyphenols, ascorbic acid, alkaloids, coumarins, and saponins, in a genotype-dependent manner. Individually or synergistically, SP’s phytochemicals help to prevent many illnesses, including certain types of cancers and cardiovascular disorders.
  • 2.2K
  • 18 Apr 2022
Topic Review
Migraine
Studies suggest that migraine pain has a vascular component. The prevailing dogma is that peripheral vasoconstriction activates baroreceptors in central, large arteries. Dilatation of central vessels stimulates nociceptors and induces cortical spreading depression. Studies investigating nitric oxide (NO) donors support the indicated hypothesis that pain is amplified when acutely administered. We provide an alternate hypothesis which, if substantiated, may provide therapeutic opportunities for attenuating migraine frequency and severity. We suggest that in migraines, heightened sympathetic tone results in progressive central microvascular constriction. Suboptimal parenchymal blood flow, we suggest, activates nociceptors and triggers headache pain onset. Administration of NO donors could paradoxically promote constriction of the microvasculatureas a consequence of larger upstream central artery vasodilatation. Inhibitors of NO production are reported to alleviate migraine pain. We describe how constriction of larger upstream arteries, induced by NO synthesis inhibitors, may result in a compensatory dilatory response of the microvasculature. The restoration of central capillary blood flow may be the primary mechanism for pain relief. Attenuating the propensity for central capillary constriction and promoting a more dilatory phenotype may reduce frequency and severity of migraines. We propose consideration of two dietary nutraceuticals for reducing migraine risk: L-arginine and aged garlic extracts.
  • 2.2K
  • 25 Dec 2020
Topic Review
Milk Mixtures
This entry describes the most important research on cheeses obtained from processing mixtures of different milk species and discusses the effect of milk species and their mixture ratios on cheeses features (biochemical composition, physicochemical and rheological characteristics, sensory properties, and microbial ecosystem).
  • 2.2K
  • 10 Oct 2020
Topic Review
Saffron for the Treatment of Human Diseases
Saffron (Crocus sativus L.) is a medicinal plant, originally cultivated in the East and Middle East, and later in some Mediterranean countries. Saffron is obtained from the stigmas of the plant. Currently, the use of saffron is undergoing a revival. The medicinal virtues of saffron, its culinary use and its high added value have led to the clarification of its phytochemical profile and its biological and therapeutic characteristics. Saffron is rich in carotenoids and terpenes. The major products of saffron are crocins and crocetin (carotenoids) deriving from zeaxanthin, pirocrocin and safranal, which give it its taste and aroma, respectively. Saffron and its major compounds have powerful antioxidant and anti-inflammatory properties in vitro and in vivo. Anti-tumor properties have also been described. 
  • 2.2K
  • 18 Feb 2022
Topic Review
Phytochemical Compounds
Phenolic compounds are secondary metabolites found in plants. They can be found in high amounts in diet due to their presence in fruits, vegetables, cereals, chocolate, and beverages such as, coffee, tea, beer, cider, and wine.
  • 2.2K
  • 04 Mar 2022
Topic Review
African Traditional Fermented Foods
Cereals are staple foods in Africa. The most commonly used cereals include maize (Zea mays), sorghum (Sorghum bicolor), millet (Peninsetum americanum), and acha or fonio (Digitaria exilis). These cereals are characterized by a high content of soluble non-starch polysaccharides (e.g., arabinoxylan and β–glucan), which have a health-promoting role and rich nondigestible carbohydrates (e.g., galacto- and fructooligosaccharides), excellent substrates for fermenting micro-organisms.
  • 2.2K
  • 16 Jun 2023
Topic Review
Protein-Energy Wasting: Acute Kidney Injury
Acute kidney injury is a heterogeneous group of conditions characterised by a sudden decrease in glomerular filtration rate, manifested by an increase in serum creatinine concentration or oliguria. Protein energy wasting is a state of decreased body stores of protein and energy fuels.
  • 2.2K
  • 27 Oct 2020
Topic Review
Intestinal Tryptophan Metabolism Pathways
Tryptophan (Trp) is an essential aromatic amino acid that is acquired exclusively through dietary intake in humans (since Trp is not produced by animal cells). Common sources of dietary Trp are fish, poultry, cereals, and dairy foods. The World Health Organization advises an intake of 4 mg of Trp/kg/day. Trp is a precursor of several microbial and host metabolites, including several molecules such as serotonin, melatonin, nicotinamide and vitamin B3. The intestine is a prime location of Trp metabolism. Three main metabolic pathways can process dietary Trp: (i) the kynurenine pathway (KP) via indoleamine 2,3-dioxygenase (IDO)1, mainly occurring in both immune and epithelial cells, (ii) the serotonin (5-hydroxytryptamine [5-HT]) pathway via Trp hydroxylase 1 (TpH1) in enterochromaffin cells, and finally (iii) the direct conversion of Trp by the intestinal microbiota into several. 
  • 2.2K
  • 19 Apr 2021
Topic Review
Associations of Linoleic Acid Intake and Chronic Disease
The intake of linoleic acid (LA) has increased dramatically in the standard American diet. LA is generally promoted as supporting human health, but there exists controversy regarding whether the amount of LA currently consumed in the standard American diet supports human health. While LA is considered to be an essential fatty acid and support health when consumed in modest amounts, an excessive intake of LA leads to the formation of oxidized linoleic acid metabolites (OXLAMs), impairments in mitochondrial function through suboptimal cardiolipin composition, and likely contributes to many chronic diseases that became an epidemic in the 20th century, and whose prevalence continues to increase. As LA consumption increases, the potential for OXLAM formation also increases. OXLAMs have been associated with various illnesses, including cardiovascular disease, cancer, and Alzheimer’s disease, among others. Lowering dietary LA intake can help reduce the production and accumulation of OXLAMs implicated in chronic diseases. 
  • 2.2K
  • 25 Jul 2023
Topic Review
Phytosterols in Human Nutrition
A healthy diet combined with physical activity have been shown to ameliorate glycaemic levels and insulin sensitivity, reduce body weight and the risk of chronic diseases, and contribute to an overall improvement in quality of life. Among nutrients, phytosterols have become the focus of growing attention as novel functional foods in the management of metabolic disorders. Phytosterols are natural plant compounds belonging to the triterpene family and are structurally similar to cholesterol. They are known for their cholesterol-lowering effects, anti-inflammatory and antioxidant properties,and the benefits they offer to the immune system.
  • 2.2K
  • 30 Dec 2020
Topic Review
Breast Milk Immunoglobulinome
Breast milk components contribute to the infant’s immune development and protection, and among other immune factors, immunoglobulins (Igs) are the most studied. The presence of IgA in milk has been known for a long time; however, less information is available about the presence of other Igs such as IgM, IgG, and their subtypes (IgG1, IgG2, IgG3, and IgG4) or even IgE or IgD.
  • 2.1K
  • 03 Jun 2021
Topic Review
Zinc
Zinc is an important micronutrient and is required for cell proliferation, differentiation, growth, and development. It takes part in the maintenance of homeostasis, DNA synthesis, RNA transcription, cell division, and activation. It is also involved in immune responses, oxidative stress, apoptosis, and aging. Its deficiency was found to increase the levels of lipid peroxidation in the mitochondrial and microsomal membrane and the osmotic fragility of the erythrocyte membrane.
  • 2.1K
  • 25 Dec 2020
Topic Review
Health Benefits of Phenolic Compounds from Pigmented Corn
Pigmented corn is a gramineae food of great biological, cultural and nutritional importance for many Latin American countries, with more than 250 breeds on the American continent. It confers a large number of health benefits due to its diverse and abundant bioactive compounds. Phenolic compounds, among which are anthocyanins are some of the most studied and representative compounds in these grasses, with a wide range of health properties, mainly the reduction of pro-oxidant molecules.
  • 2.1K
  • 13 Mar 2024
Topic Review
Folate and Migraines
Migraines are a common disease with limited treatment options and some dietary factors are recognized to trigger headaches. Although migraine pathogenesis is not completely known, aberrant DNA methylation has been reported to be associated with its occurrence. Folate, an essential micronutrient involved in one-carbon metabolism and DNA methylation, was shown to have beneficial effects on migraines.
  • 2.1K
  • 09 Oct 2021
Topic Review
M-16V as Infant Probiotic
Bifidobacterium breve M-16V is a commonly used probiotic strain in infants. M-16V has been demonstrated to offer potential in protecting infants from developing devastating necrotising enterocolitis (NEC) and allergic diseases.
  • 2.1K
  • 10 Sep 2021
Topic Review
Tryptophan Metabolism
Tryptophan metabolism, via the kynurenine (Kyn) pathway, and microbial transformation of tryptophan to indolic compounds are fundamental for host health; both of which are altered in colon carcinogenesis. 
  • 2.1K
  • 07 May 2021
Topic Review
Nutrition, Cognition and Aging
Consuming a balanced, nutritious diet is important for maintaining health, especially as individuals age. Several studies suggest that consuming a diet rich in antioxidants and anti-inflammatory components such as those found in fruits, nuts, vegetables, and fish may reduce age-related cognitive decline and the risk of developing various neurodegenerative diseases.
  • 2.1K
  • 01 Jun 2021
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