22 research outputs found

    Introductory Chapter: Cassava as a Staple Food

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    Introductory Chapter: Fatty Acids in Modern Times

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    Diabetes Mellitus in South Asia

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    The prevalence rates of diabetes mellitus and its complications in South Asia are much higher than in other developed and developing countries; therefore, diabetes mellitus has become a serious problem in this region. While the prevalence of diabetes mellitus in South Asia is remarkable, its characteristics and causes have not been well-elucidated. More than 85% of the diabetic population in South Asia suffer from type 2 diabetes, and the causes can be divided into two categories: internal/traditional causes and causes induced by rapid development. Factors such as age, gender, diet and lifestyle changes, including a lack of physical activity caused by modernization and urbanization, are major contributory factors. The majority of the healthcare costs associated with diabetes are due to its later complications and are not preventable. Therefore, inexpensive treatment at an early stage of diabetes is important. In this review, the following are recommended as preventive measures of the incidence of the disease: (1) induction of UCP1 through the diet, (2) increasing the intake of antidiabetic bioactive components and/or food and (3) evolution of the consensus through educational programs and government policy. National strategies and interventions should be implemented immediately for both the primary and secondary prevention of diabetes mellitus and its complications in order to advocate healthy living among the South Asian populations

    Free radical scavenging ability of Aspalathus linearis in two in vitro models of diabetes and cancer

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    AbstractThe free radical scavenging activity of Aspalathus linearis (Rooibos tea) and its effect on reactive oxygen species (ROS), catalase (CAT), and superoxide dismutase (SOD) were investigated in two in vitro disease models of cancer and diabetes. Although the antioxidant activity of this tea has been reported in several studies, its effects in disease models of ROS-induced oxidative stress have not been systematically evaluated to date. The oxygen radical absorbance capacity (ORAC) assay was used in this study to quantify the antioxidant capacity of the extract, whereas the ROS scavenging ability in hyperglycemia-induced human umbilical vein endothelial cells (HUVECs) and HeLa cells were investigated. The CAT and SOD assays were also carried out in the two disease models in order to evaluate the effect of the extract in the stimulation of these two enzyme activities. The extract was observed to have reduced ROS in a dose-dependent manner in both HUVECs and HeLa cells. The stimulation of the CAT and SOD enzyme activities were observed to be dose-dependent as well. The high ORAC value of the extract indicated the presence of antioxidant compounds which could directly quench ROS, whereby this mechanism of action could be hypothesized to have been further complemented through the stimulation of CAT and SOD. Overall, the Aspalathus linearis extract was observed to have increased the CAT and SOD activities in two in vitro disease models of cancer and hyperglycemia. Given the correlation between the ORAC values, the increases in CAT and SOD activities and the reduction in ROS in a dose-dependent manner, it could be hypothesized that the extract had a significant therapeutic potential for either the prevention of the onset of the two diseases or their progression because ROS has been identified as their root causes

    Amaranth as a Pseudocereal in Modern Times: Nutrients, Taxonomy, Morphology and Cultivation

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    Amaranth is a cereal that has been around since ancient times. Its history is deeply embedded in the cultures of the pre-Colombian new world. There are reasons to believe that the Aztecs used it extensively. The grain is able to tolerate harsh weather conditions and also has a high nutrient profile, particularly proteins. Its lysine content in particular is noteworthy. Amaranth has been seen as a means of curbing malnutrition and food insecurity owing to these properties. There are several pseudocereals that have competed with Amaranth for the top spot as a candidate to prevent several nutrient deficiencies. Millet, barley, quinoa and buckwheat are some of those nutrient-dense pseudocereals. However, the nutrient profile of Amaranth is far superior, and the ease of its cultivation has led to it being selected as a grain for cultivation in continents such as Africa where malnutrition and food insecurity are significantly prevalent. Thus, due to the rising nutritional, health and wellness needs of the global population and to provide nutrition for the malnourished, Amaranth appears to be the most viable selection out of all cereals and pseudocereals

    Therapeutic Properties and Anti-Lipidemic Activity of <em>Cordyceps sinensis</em>

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    Cordyceps sinensis is an entomophagous medicinal mushroom, which is mainly endemic to the Tibetan Plateau including the adjoining high altitude areas. The fungus attacks many lepidopteran larvae caterpillars and mummifies it. The larvae along with the mummified insect are highly valued for their medicinal property. Cordyceps sinensis is one of the most efficient and expensive medicinal mushrooms in traditional medicinal systems such as those in China and Tibet, having multiple medicinal and pharmacological properties. It has been used to treat respiratory and immune disorders; pulmonary diseases; renal, liver, and cardiovascular diseases; hyposexuality; and hyperlipidemia. The extract of this mushroom and its bioactive compounds are noteworthy for their ability to regulate lipid metabolism and thereby exhibit anti-lipidemic activity. Cordycepin in particular, which is a bioactive compound existing in Cordyceps sinensis, has been identified as one of the primary compounds of interest in this aspect. Despite the global and scientific interest exerted toward Cordyceps sinensis, it appears to be of utmost importance that the price and other market factors owing to the rarity of this herb are managed through artificial means of synthesis

    Introductory Chapter: An Overview of Palm Oil

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    Forestalling the Epidemics of Parkinson's Disease Through Plant-Based Remedies

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    Parkinson's disease (PD) as the second leading neurodegenerative disease, imposes a heavy burden among individuals as well as economies worldwide. The main characteristics of PD is a progressive loss of dopaminergic neurons resulting in the loss of motor function, the occurrence of non-motor symptoms, and cognitive decline. Similar to many other chronic diseases, complementary and alternative therapies (CAT) are very popular for the treatment of this disease. This review evaluates six plants, three each from European and Asian traditional medicinal systems: (1) Atropa belladonna, (2) Hyoscyamus niger, (3) Lepidium meyenii, (4) Aspargus racemosus, (5) Mucuna pruriens L., and (6) Gingko biloba. Atropa belladonna, and Hyoscyamus niger in particular, are better known for their poisonous and narcotic effects than as potentially effective plants for the treatment of neurodegenerative diseases. Ginkgo biloba is one of the most widely cultured plants in Traditional Chinese Medicine with high antioxidant potential which contributes to its neuroprotective/ anti-apoptotic activity. The bioactive compounds, anti-neurodegenerative effects and other neuroprotective effects of all six plants are discussed herein

    The Antioxidant and Starch Hydrolase Inhibitory Activity of Ten Spices in an In Vitro

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    The antioxidant and starch hydrolase inhibitory activities of cardamom, cloves, coriander, cumin seeds, curry leaves, fenugreek, mustard seeds, nutmeg, sweet cumin, and star anise extracts were investigated in an in vitro model of digestion mimicking the gastric and duodenal conditions. The total phenolic contents in all spice extracts had statistically significantly (P<0.05) increased following both gastric and duodenal digestion. This was also in correlation with the antioxidant assays quantifying the water-soluble antioxidant capacity of the extracts. The lipophilic Oxygen Radical Absorbance Capacity assay did not indicate a statistically significant change in the values during any of the digestion phases. Statistically significant (P<0.05) reductions in the anthocyanin contents were observed during the digestion phases in contrast to the carotenoid contents. With the exception of the cumin seed extract, none of the spice extracts showed statistically significant changes in the initial starch hydrolase enzyme inhibitory values prior to gastric and duodenal digestion. In conclusion, this study was able to prove that the 10 spices were a significant source of total phenolics, antioxidant, and starch hydrolase inhibitory activities
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