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1.
Am J Clin Nutr ; 115(2): 444-455, 2022 02 09.
Article En | MEDLINE | ID: mdl-34581759

BACKGROUND: Endogenously formed advanced glycation end products (AGEs) may be important drivers of microvascular dysfunction and the microvascular complications of diabetes. AGEs are also formed in food products, especially during preparation methods involving dry heat. OBJECTIVES: We aimed to assess cross-sectional associations between dietary AGE intake and generalized microvascular function in a population-based cohort. METHODS: In 3144 participants of the Maastricht Study (mean ± SD age: 60 ± 8 y, 51% men) the dietary AGEs Nε-(carboxymethyl)lysine (CML), Nε-(1-carboxyethyl)lysine (CEL), and Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)-ornithine (MG-H1) were estimated using the combination of our ultra-performance LC-tandem MS dietary AGE database and an FFQ. Microvascular function was determined in the retina as flicker light-induced arteriolar and venular dilation and as central retinal arteriolar and venular equivalents, in plasma as a z score of endothelial dysfunction biomarkers (soluble vascular adhesion molecule 1 and soluble intracellular adhesion molecule 1, soluble E-selectin, and von Willebrand factor), in skin as the heat-induced skin hyperemic response, and in urine as 24-h albuminuria. Associations were evaluated using multiple linear regression adjusting for demographic, cardiovascular, lifestyle, and dietary factors. RESULTS: Overall, intakes of CML, CEL, and MG-H1 were not associated with the microvascular outcomes. Although higher intake of CEL was associated with higher flicker light-induced venular dilation (ß percentage change over baseline: 0.14; 95% CI: 0.02, 0.26) and lower plasma biomarker z score (ß: -0.04 SD; 95% CI: -0.08, -0.00 SD), the effect sizes were small and their biological relevance can be questioned. CONCLUSIONS: We did not show any strong association between habitual intake of dietary AGEs and generalized microvascular function. The contribution of dietary AGEs to generalized microvascular function should be further assessed in randomized controlled trials using specifically designed dietary interventions.


Diabetes Mellitus/physiopathology , Diet/adverse effects , Glycation End Products, Advanced/administration & dosage , Microcirculation/drug effects , Nutritional Physiological Phenomena/drug effects , Aged , Biomarkers/blood , Chromatography, Liquid , Cross-Sectional Studies , Female , Humans , Kidney/blood supply , Lysine/administration & dosage , Lysine/analogs & derivatives , Male , Mass Spectrometry , Middle Aged , Ornithine/administration & dosage , Prospective Studies , Retinal Vessels/drug effects , Skin/blood supply
2.
Food Funct ; 12(22): 11077-11105, 2021 Nov 15.
Article En | MEDLINE | ID: mdl-34672309

Mouse models are an essential tool in different areas of research, including nutrition and phytochemical research. Traditional inbred mouse models have allowed the discovery of therapeutical targets and mechanisms of action and expanded our knowledge of health and disease. However, these models lack the genetic variability typically found in human populations, which hinders the translatability of the results found in mice to humans. The development of genetically diverse mouse models, such as the collaborative cross (CC) or the diversity outbred (DO) models, has been a useful tool to overcome this obstacle in many fields, such as cancer, immunology and toxicology. However, these tools have not yet been widely adopted in the field of phytochemical research. As demonstrated in other disciplines, use of CC and DO models has the potential to provide invaluable insights for translation of phytochemicals from rodents to humans, which are desperately needed given the challenges and numerous failed clinical trials in this field. These models may prove informative for personalized use of phytochemicals in humans, including: predicting interindividual variability in phytochemical bioavailability and efficacy, identifying genetic loci or genes governing response to phytochemicals, identifying phytochemical mechanisms of action and therapeutic targets, and understanding the impact of genetic variability on individual response to phytochemicals. Such insights would prove invaluable for personalized implementation of phytochemicals in humans. This review will focus on the current work performed with genetically diverse mouse populations, and the research opportunities and advantages that these models can offer to phytochemical research.


Disease Models, Animal , Genetic Variation/genetics , Mice, Inbred Strains/genetics , Nutritional Physiological Phenomena , Phytochemicals , Animals , Drug Evaluation, Preclinical , Humans , Mice , Nutritional Physiological Phenomena/drug effects , Nutritional Physiological Phenomena/genetics , Phytochemicals/administration & dosage , Phytochemicals/pharmacology , Translational Research, Biomedical
3.
Nutrients ; 13(5)2021 May 02.
Article En | MEDLINE | ID: mdl-34063252

Innate immunity plays a determinant role in high fat diet (HFD)-induced insulin resistance. This study compares the effects of immunonutritional bioactives from Chenopodium quinoa (WQ) or Salvia hispanica L. (Ch) when used to partially replace wheat flour (WB) into bread formulations. These flours were chosen to condition starch and lipid content in the products as well as because their immunonutritional activity. To be administered with different bread formulations, HFD-fed C57BL/6J mice were distributed in different groups: (i) wild type, (ii) displaying inherited disturbances in glucose homeostasis, and (iii) displaying dietary iron-mediated impairment of the innate immune TLR4/TRAM/TRIF pathway. We analyze the effects of the products on glycaemia and insulin resistance (HOMA-IR), plasmatic triglycerides, intestinal and hepatic gene expression and variations of myeloid (MY), and lymphoid (LY) cells population in peripheral blood. Our results show that feeding animals with WQ and Ch formulations influenced the expression of lipogenic and coronary risk markers, thus attaining a better control of hepatic lipid accumulation. WQ and Ch products also improved glucose homeostasis compared to WB, normalizing the HOMA-IR in animals with an altered glucose and lipid metabolism. These positive effects were associated with positive variations in the peripheral myeloid cells population.


Chenopodium quinoa , Flour , Insulin Resistance/physiology , Myeloid Cells/drug effects , Phytochemicals/administration & dosage , Salvia , Animals , Blood Glucose/immunology , Diet, High-Fat/adverse effects , Disease Models, Animal , Immunity, Innate/drug effects , Intestinal Mucosa/metabolism , Lipid Metabolism/drug effects , Liver/metabolism , Lymphocytes/drug effects , Mice , Mice, Inbred C57BL , Nutritional Physiological Phenomena/drug effects , Nutritional Physiological Phenomena/immunology , Triglycerides/blood
4.
Nutrients ; 13(4)2021 Mar 28.
Article En | MEDLINE | ID: mdl-33800650

Aging is associated with impairment in skeletal muscle mass and contractile function, predisposing to fat mass gain, insulin resistance and diabetes. The impact of Vitamin D (VitD) supplementation on skeletal muscle mass and function in older adults is still controversial. The aim of this review was to summarize data from randomized clinical trials, animal dietary intervention and cell studies in order to clarify current knowledge on the effects of VitD on skeletal muscle as reported for these three types of experiments. A structured research of the literature in Medline via PubMed was conducted and a total of 43 articles were analysed (cells n = 18, animals n = 13 and humans n = 13). The results as described by these key studies demonstrate, overall, at cell and animal levels, that VitD treatments had positive effects on the development of muscle fibres in cells in culture, skeletal muscle force and hypertrophy. Vitamin D supplementation appears to regulate not only lipid and mitochondrial muscle metabolism but also to have a direct effect on glucose metabolism and insulin driven signalling. However, considering the human perspective, results revealed a predominance of null effects of the vitamin on muscle in the ageing population, but experimental design may have influenced the study outcome in humans. Well-designed long duration double-blinded trials, standardised VitD dosing regimen, larger sample sized studies and standardised measurements may be helpful tools to accurately determine results and compare to those observed in cells and animal dietary intervention models.


Dietary Supplements , Muscle, Skeletal/drug effects , Nutritional Physiological Phenomena/drug effects , Vitamin D/pharmacology , Vitamins/pharmacology , Aging/drug effects , Animals , Cell Culture Techniques , Humans , Models, Animal , Muscle Contraction/drug effects , Muscle Fibers, Skeletal/drug effects
5.
Clin Nutr ; 40(4): 1519-1529, 2021 04.
Article En | MEDLINE | ID: mdl-33743287

BACKGROUND & AIMS: Excess nutrient supply, such as high fat and high glucose intake, promotes oxidative stress and advanced glycation end products accumulation. Oxidative stress and AGE accumulation cause pathological elevation of arginase activity and pro-inflammatory signaling implicated in endothelial dysfunction. Several studies showed positive effects of l-arginine supplementation in endothelial function but little is currently known about the role of l-arginine as prevention of endothelial dysfunction caused by excessive nutrient supply (overfeeding). Our aim was to evaluate a possible protective effect of l-arginine on endothelial dysfunction caused by excessive nutrient supply (overfeeding), using human endothelial cells line in an in vitro study. METHODS: Endothelial EA.hy926 cells were pre-treated with 1.72 mM of l-arginine for 24 h and afterwards subjected to nutritional stress (high lipid, high insulin and high glucose concentrations) for further 24 h. After treatment discontinuation, the cells were kept in culture for 48 h, in physiological condition, to evaluate the effects of treatments after normalization. RESULTS: Excess nutrient supply in EA.hy926 cell line showed an increase of oxidative and nitrosative stress, a rise of AGEs production, high arginase activity, leading the cells to acidosis and to cell death. l-arginine pretreatment protects the cells by reducing apoptosis, acidosis, oxidative and nitrosative stress, arginase activity and AGE accumulation. l-arginine pretreatment reduces AGEs generation and accumulation by regulating STAB1 and RAGE gene expression levels. STAB1, acting as receptor scavenger of AGEs, interferes with AGE-RAGE binding and thus prevents activation of intracellular signaling pathways leading to cell damage. Moreover the reduction of oxidative stress promotes a decrease of excessive activation of arginase involved in endothelial dysfunction. The effects of pretreatment with l-arginine last even in the absence of stimuli and despite after treatment discontinuation. CONCLUSIONS: An early l-arginine treatment is able to prevent oxidative stress and AGEs accumulation caused by overfeeding in human endothelial cell line by regulating STAB1/RAGE gene expression and by reducing excess arginase activity. The positive effects of l-arginine pretreatment continue even after treatment discontinuation in normal conditions.


Arginine/pharmacology , Endothelium, Vascular/drug effects , Nutritional Physiological Phenomena/drug effects , Overnutrition/prevention & control , Protective Agents/pharmacology , Cell Line , Endothelial Cells/drug effects , Glycation End Products, Advanced/metabolism , Humans , Overnutrition/metabolism , Oxidative Stress/drug effects , Signal Transduction/drug effects
6.
Nutrients ; 13(3)2021 Feb 26.
Article En | MEDLINE | ID: mdl-33652752

The use of dietary supplements has become increasingly common over the past 20 years. Whereas supplements were formerly used mainly by elite athletes, age and fitness status no longer dictates who uses these substances. Indeed, many nutritional supplements are recommended by health care professionals to their patients. Creatine (CR) is a widely used dietary supplement that has been well-studied for its effects on performance and health. CR also aids in recovery from strenuous bouts of exercise by reducing inflammation. Although CR is considered to be very safe in recommended doses, a caveat is that a preponderance of the studies have focused upon young athletic individuals; thus there is limited knowledge regarding the effects of CR on children or the elderly. In this review, we examine the potential of CR to impact the host outside of the musculoskeletal system, specifically, the immune system, and discuss the available data demonstrating that CR can impact both innate and adaptive immune responses, together with how the effects on the immune system might be exploited to enhance human health.


Creatine/pharmacology , Dietary Supplements , Immune System/drug effects , Immunity/drug effects , Nutritional Physiological Phenomena/drug effects , Adolescent , Adult , Aged , Child , Exercise/physiology , Female , Humans , Male , Middle Aged , Young Adult
7.
Curr Mol Pharmacol ; 14(2): 220-233, 2021.
Article En | MEDLINE | ID: mdl-32048982

BACKGROUND: The enhancement of learning and memory through food-derived ingredients is of great interest to healthy individuals as well as those with diseases. Ergothioneine (ERGO) is a hydrophilic antioxidant highly contained in edible golden oyster mushrooms (Pleurotus cornucopiae var. citrinopileatus), and systemically absorbed by its specific transporter, carnitine/organic cation transporter OCTN1/SLC22A4. OBJECTIVE: This study aims to examine the possible enhancement of object recognition memory by oral administration of ERGO in normal mice. METHODS: Novel object recognition test, spatial recognition test, LC-MS/MS, Golgi staining, neuronal culture, western blotting, immunocytochemistry, and quantitative RT-PCR were utilized. RESULT: After oral administration of ERGO (at a dose of 1-50 mg/kg) three times per week for two weeks in ICR mice, the novel object recognition test revealed a longer exploration time for the novel object than for the familiar object. After oral administration of ERGO, the spatial recognition test also revealed a longer exploration time for the spatially moved object than the unmoved one in mice fed ERGO-free diet. The discrimination index was significantly higher in the ERGO-treated group than the control in both behavioral tests. ERGO administration led to an increase in its concentration in the plasma and hippocampus. The systemic concentration reached was relevant to those found in humans after oral ERGO administration. Golgi staining revealed that ERGO administration increased the number of matured spines in the hippocampus. Exposure of cultured hippocampal neurons to ERGO elevated the expression of the synapse formation marker, synapsin I. This elevation of synapsin I was inhibited by the tropomyosin receptor kinase inhibitor, K252a. Treatment with ERGO also increased the expression of neurotrophin-3 and -5, and phosphorylated mammalian target of rapamycin in hippocampal neurons. CONCLUSION: Oral intake of ERGO may enhance object recognition memory at its plasma concentration achievable in humans, and this enhancement effect could occur, at least in part, through the promotion of neuronal maturation in the hippocampus.


Antioxidants/chemistry , Behavior, Animal/drug effects , Enzyme Inhibitors/chemistry , Ergothioneine/chemistry , Nutritional Physiological Phenomena/drug effects , Pleurotus/chemistry , Administration, Oral , Animals , Antioxidants/administration & dosage , Antioxidants/analysis , Carbazoles/pharmacology , Chromatography, High Pressure Liquid , Dose-Response Relationship, Drug , Drug Discovery , Enzyme Inhibitors/administration & dosage , Enzyme Inhibitors/blood , Ergothioneine/administration & dosage , Ergothioneine/blood , Hippocampus/metabolism , Humans , Indole Alkaloids/pharmacology , Male , Mice, Inbred ICR , Neurogenesis/drug effects , Neurons/metabolism , Synapsins/metabolism , Tandem Mass Spectrometry
8.
Curr Opin Clin Nutr Metab Care ; 23(6): 445-450, 2020 11.
Article En | MEDLINE | ID: mdl-32925180

PURPOSE OF REVIEW: Dietary fibers decrease risk of cardiovascular disease and obesity, but the most important mechanisms for fiber's protective properties are debated. The purpose of the review is to summarize the recent human studies that examine mechanisms how dietary fiber decreases risk of obesity-related disorders. RECENT FINDINGS: Dietary fiber has effects throughout the digestive tract that decrease risk of obesity-related diseases. Soluble, viscous fibers slow absorption of and decrease serum cholesterol. Intake of dietary fiber enhances satiety and reduces food intake at future meals. The importance of gut fermentation and changes in the gut microbiota and metabolites are linked to decrease risk for obesity-related disorders. Dietary fibers alter the gut microbiota and produce metabolites such as short-chain fatty acids that may explain fiber's role in obesity prevention and treatment. Dietary fiber encompasses many plant compounds, so conclusions that dietary fiber reduces or treats obesity-related disorders must be considered by the fiber was fed in the study. SUMMARY: Dietary fiber prevents and treats obesity-related disorders. Mechanisms for this protection include decreased absorption of macronutrients and enhanced satiety. Changes in the gut microbiota and short-chain fatty acids are emerging mechanisms to explain why high fiber diets protect against obesity and have a role in obesity treatment.


Dietary Fiber/pharmacology , Gastrointestinal Absorption/drug effects , Nutritional Physiological Phenomena/drug effects , Obesity/prevention & control , Satiation/drug effects , Diet, Healthy/methods , Fatty Acids, Volatile/metabolism , Gastrointestinal Microbiome/drug effects , Humans , Protective Factors
9.
Nutrients ; 12(9)2020 09 01.
Article En | MEDLINE | ID: mdl-32883033

Dietary protein is critical for the maintenance of musculoskeletal health, whereappropriate intake (i.e., source, dose, timing) can mitigate declines in muscle and bone mass and/orfunction. Animal-derived protein is a potent anabolic source due to rapid digestion and absorptionkinetics stimulating robust increases in muscle protein synthesis and promoting bone accretion andmaintenance. However, global concerns surrounding environmental sustainability has led to anincreasing interest in plant- and collagen-derived protein as alternative or adjunct dietary sources.This is despite the lower anabolic profile of plant and collagen protein due to the inferior essentialamino acid profile (e.g., lower leucine content) and subordinate digestibility (versus animal). Thisreview evaluates the efficacy of animal-, plant- and collagen-derived proteins in isolation, and asprotein blends, for augmenting muscle and bone metabolism and health in the context of ageing,exercise and energy restriction.


Animal Proteins, Dietary/pharmacokinetics , Bone and Bones/drug effects , Dietary Proteins/pharmacokinetics , Muscle, Skeletal/drug effects , Plant Proteins, Dietary/pharmacokinetics , Aging/metabolism , Animals , Bone Remodeling/drug effects , Caloric Restriction , Collagen/chemistry , Exercise/physiology , Humans , Nutritional Physiological Phenomena/drug effects , Protein Biosynthesis/drug effects
10.
Curr Opin Clin Nutr Metab Care ; 23(6): 451-459, 2020 11.
Article En | MEDLINE | ID: mdl-32889824

PURPOSE OF REVIEW: The impact of dietary lipids on cardiometabolic health was mainly studied considering their fatty acid composition. This review aims to present the recent change in paradigm whereby the food matrix, the molecular and supramolecular structures of dietary lipids modulate their digestive fate and cardiometabolic impact. RECENT FINDINGS: Epidemiological studies have reported that the metabolic impact of full-fat dairy products is better than predictable upon saturated fatty acid richness. Milk polar lipid supplementation reduced adiposity and inflammation in rodents by modulating gut microbiota and barrier, and decreased lipid markers of cardiovascular disease risk in humans by lowering cholesterol absorption. The metabolic importance of the structure of lipid molecules carrying omega-3 (molecular carrier) has also been documented. Plant lipids exhibit specific assemblies, membrane and molecular structures with potential health benefits. Lipid emulsifiers used to stabilize fats in processed foods are not mere bystanders of lipid effects and can induce both beneficial and adverse health effects. SUMMARY: These findings open new clinical research questions aiming to further characterize the cardiometabolic fate of lipids, from digestion to bioactive metabolites, according to the food source or molecular carrier. This should be useful to elaborate food formulations for target populations and personalized dietary recommendations.


Dietary Fats/pharmacokinetics , Lipids/pharmacokinetics , Metabolic Syndrome/metabolism , Nutritional Physiological Phenomena/drug effects , Animals , Biological Availability , Cardiometabolic Risk Factors , Digestion/drug effects , Gastrointestinal Absorption/drug effects , Gastrointestinal Microbiome/drug effects , Humans , Lipid Metabolism , Metabolic Syndrome/etiology , Structure-Activity Relationship
11.
Nutrients ; 12(9)2020 Aug 24.
Article En | MEDLINE | ID: mdl-32846900

Life expectancy is increasing and so is the prevalence of age-related non-communicable diseases (NCDs). Consequently, older people and patients present with multi-morbidities and more complex needs, putting significant pressure on healthcare systems. Effective nutrition interventions could be an important tool to address patient needs, improve clinical outcomes and reduce healthcare costs. Inflammation plays a central role in NCDs, so targeting it is relevant to disease prevention and treatment. The long-chain omega-3 polyunsaturated fatty acids (omega-3 LCPUFAs) docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are known to reduce inflammation and promote its resolution, suggesting a beneficial role in various therapeutic areas. An expert group reviewed the data on omega-3 LCPUFAs in specific patient populations and medical conditions. Evidence for benefits in cognitive health, age- and disease-related decline in muscle mass, cancer treatment, surgical patients and critical illness was identified. Use of DHA and EPA in some conditions is already included in some relevant guidelines. However, it is important to note that data on the effects of omega-3 LCPUFAs are still inconsistent in many areas (e.g., cognitive decline) due to a range of factors that vary amongst the trials performed to date; these factors include dose, timing and duration; baseline omega-3 LCPUFA status; and intake of other nutrients. Well-designed intervention studies are required to optimize the effects of DHA and EPA in specific patient populations and to develop more personalized strategies for their use.


Aging/physiology , Dietary Supplements , Docosahexaenoic Acids/pharmacology , Eicosapentaenoic Acid/pharmacology , Expert Testimony/statistics & numerical data , Nutritional Physiological Phenomena/physiology , Aged , Aged, 80 and over , Aging/drug effects , Fatty Acids, Omega-3/pharmacology , Humans , Inflammation/prevention & control , Nutritional Physiological Phenomena/drug effects
12.
Nutrients ; 12(4)2020 Apr 22.
Article En | MEDLINE | ID: mdl-32331413

Algal products are well known for their health promoting effects. Nonetheless, an in depth understanding of the underlying molecular mechanisms is still only fragmentary. Here, we show that aqueous furbelow extracts (brown algae, Saccorhiza polyschides) lengthen the life of both sexes of the fruit fly Drosophila melanogaster substantially, if used as nutritional additives to conventional food. This life prolonging effect became even more pronounced in the presence of stressors, such as high-fat dieting of living under drought conditions. Application of the extracts did not change food intake, excretion, or other major physiological parameters. Nevertheless, effects on the intestinal microbiota were observed, leading to an increased species richness, which is usually associated with healthy conditions. Lifespan extension was not observed in target of rapamycin (TOR)-deficient animals, implying that functional TOR signaling is necessary to unfold the positive effects of brown algae extract (BAE) on this important trait. The lack of life lengthening in animals with deregulated TOR signaling exclusively targeted to body fat showed that this major energy storage organ is instrumental for transmitting these effects. In addition, expression of Imaginal morphogenesis protein-Late 2 (Imp-L2), an effective inhibitor of insulin signaling implies that BAE exerts their positive effects through interaction with the tightly interwoven TOR- and insulin-signaling systems, although insulin levels were not directly affected by this intervention.


Dietary Supplements , Drosophila melanogaster/genetics , Drosophila melanogaster/physiology , Longevity/drug effects , Nutritional Physiological Phenomena/drug effects , Nutritional Physiological Phenomena/physiology , Phaeophyceae/chemistry , Plant Extracts/pharmacology , Signal Transduction/drug effects , TOR Serine-Threonine Kinases/metabolism , Animals , Body Fat Distribution , Drosophila Proteins/metabolism , Drosophila melanogaster/metabolism , Female , Gastrointestinal Microbiome/drug effects , Insulin/metabolism , Male
14.
Biomed Pharmacother ; 121: 109653, 2020 Jan.
Article En | MEDLINE | ID: mdl-31810138

Gut microbiota plays an important role in the gut and have become a hotspot of recent research interests. Commensal microbiota in gut exert a variety of effects on the host, from shaping the structure and function of the gut and the immune system to the modulation of nutrient status of the host and the treatment outcomes of some drugs. Gut microbiota and its enzyme product and subsequent products, such as short-chain fatty acid and bile acid, play important roles in the biotransformation of drugs via directly or indirectly affecting drug absorption, toxicity, metabolism and bioavailability. Drugs, especially antibiotics, also affect the homeostasis of probiotics and the integrity and function of the intestinal mucosa. These interplaying processes produce a variety of important metabolites of the host and drugs and affect the balance of microbiota and the mucosal barrier then modulate the function of drugs. Gut microbiota imbalance is associated with a broad range of disease mechanisms, and this association denotes a new drug-therapeutic avenue. The present review summarizes how gut microbiota acts as an "invisible organ" to directly or indirectly modulate the function of drugs, on the aspects of probiotic homeostasis, drugs and host nutritional metabolism, AJC, mucus layer and microfold cells.


Gastrointestinal Microbiome , Pharmaceutical Preparations/metabolism , Gastrointestinal Microbiome/drug effects , Homeostasis/drug effects , Humans , Nutritional Physiological Phenomena/drug effects , Probiotics/pharmacology
15.
Phytother Res ; 33(11): 2870-2903, 2019 Nov.
Article En | MEDLINE | ID: mdl-31453658

The genus Moringa Adans. comprises 13 species, of which Moringa oleifera Lam. native to India and cultivated across the world owing to its drought and frost resistance habit is widely used in traditional phytomedicine and as rich source of essential nutrients. Wide spectrum of phytochemical ingredients among leaf, flower, fruit, seed, seed oil, bark, and root depend on cultivar, season, and locality. The scientific studies provide insights on the use of M. oleifera with different aqueous, hydroalcoholic, alcoholic, and other organic solvent preparations of different parts for therapeutic activities, that is, antibiocidal, antitumor, antioxidant, anti-inflammatory, cardio-protective, hepato-protective, neuro-protective, tissue-protective, and other biological activities with a high degree of safety. A wide variety of alkaloid and sterol, polyphenols and phenolic acids, fatty acids, flavanoids and flavanol glycosides, glucosinolate and isothiocyanate, terpene, anthocyanins etc. are believed to be responsible for the pragmatic effects. Seeds are used with a view of low-cost biosorbent and coagulant agent for the removal of metals and microbial contamination from waste water. Thus, the present review explores the use of M. oleifera across disciplines for its prominent bioactive ingredients, nutraceutical, therapeutic uses and deals with agricultural, veterinarian, biosorbent, coagulation, biodiesel, and other industrial properties of this "Miracle Tree."


Moringa oleifera/chemistry , Nutritive Value , Phytotherapy , Plant Extracts/pharmacology , Plant Extracts/therapeutic use , Antioxidants/chemistry , Antioxidants/pharmacology , Antioxidants/therapeutic use , Dietary Supplements , Flowers/chemistry , Fruit/chemistry , Humans , India , Nutritional Physiological Phenomena/drug effects , Phytochemicals/chemistry , Phytochemicals/pharmacology , Phytochemicals/therapeutic use , Phytotherapy/methods , Plant Extracts/chemistry , Plant Leaves/chemistry , Seeds/chemistry
16.
Chemosphere ; 215: 766-774, 2019 Jan.
Article En | MEDLINE | ID: mdl-30352373

In this work, we developed an integrative experimental design to investigate the long-term effects of two important classes of carbon nanomaterials with different dimensionalities (i.e., 1D oxidized multiwalled carbon nanotube, ox-MWCNT, and 2D graphene oxide, GO) on the development of the generalist insect Spodoptera frugiperda (Lepidoptera: Noctuidae). Insects are exciting in vivo biological models for investigating the impact of nanomaterials on nanobio-ecological interactions. S. frugiperda larvae were reared from egg hatching to pupation on diets containing ox-MWCNT and GO at different concentrations (0, 10, 100 and 1000 µg g-1 of dry mass of diet). Several aspects of larval and adult performance were measured under controlled conditions. The effects of the carbon nanomaterial (CNM)-containing diets on the nutritional physiology and digestive enzymatic activities of S. frugiperda larvae were also evaluated. The results showed that the type and concentration of CNMs in the diet negatively affected the reproductive parameters and the digestive and metabolic efficiency of S. frugiperda. The diet containing the highest concentration of GO significantly reduced the fecundity and fertility of S. frugiperda compared to the effects of other treatments. S. frugiperda larvae showed decreased efficiency of food conversion into biomass and maximal approximate digestibility when fed diets containing GO at higher concentrations. However, quantitative differences in digestive enzyme activities were not observed between all treatments. These findings highlighted the critical influence of CNM dimensionality on the general performance and nutritional physiology of the moth. This work contributes to the safety evaluation and future applications of CNMs in agri-environmental nanotechnology.


Carbon/chemistry , Carbon/pharmacology , Fertility/drug effects , Larva/growth & development , Nanostructures/chemistry , Nutritional Physiological Phenomena/drug effects , Spodoptera/growth & development , Animals , Larva/drug effects , Nanostructures/administration & dosage , Spodoptera/drug effects
17.
Ecotoxicol Environ Saf ; 168: 324-329, 2019 Jan 30.
Article En | MEDLINE | ID: mdl-30390531

Secondary plant metabolites play an important role in providing protection to plants against herbivore insect pests. Keeping in view the increasing importance of biopesticides, the crude extracts from different plants are being investigated for insecticidal activities. Alpinia galanga, a medicinal plant belonging to family Zingiberaceae exhibits a wide range of biological activities. In the present study, crude extracts of A. galanga and its purified compounds i.e. 1'-acetoxychavicol acetate and galangin were evaluated for their effect on various nutritional parameters of Spodoptera litura (Fab.). All the extracts exhibited a significant influence on relative growth and consumption rates as well as efficiency of conversion of ingested and digested food. Ethyl acetate extract was found to be the most effective causing significant reduction in values of RGR, RCR, ECI and ECD of S. litura larvae in comparison to control larvae. The highest concentration of the ethyl acetate extract (2500 ppm) resulted in 44.95%, 10.99%, 38.08% and 37.04% decrease respectively in RGR, RCR, ECI and ECD in comparison to control. The purified compounds also showed inhibitory effects on various nutritional parameters. 1'-Acetoxychavicol acetate was found to be more effective in comparison to galangin.


Alpinia/chemistry , Nutritional Physiological Phenomena/drug effects , Plant Extracts/pharmacology , Spodoptera/drug effects , Animals , Benzyl Alcohols/pharmacology , Biological Control Agents/pharmacology , Flavonoids/pharmacology , Larva/drug effects , Plants, Medicinal/chemistry , Spodoptera/metabolism
18.
Methods Mol Biol ; 1787: 1-18, 2018.
Article En | MEDLINE | ID: mdl-29736706

Clinically approved antibiotics target a narrow spectrum of cellular processes, namely cell wall synthesis, DNA replication, and protein synthesis. Numerous screens have been designed to identify inhibitors that target one of these cellular processes. Indeed, this narrow range of drug mechanisms and a reliance on chemical classes discovered many decades ago are thought to be principally responsible for the current crisis of antibiotic drug resistance. Seeking to expand the target base of antibacterial drug discovery, we developed a nutrient stress screening platform that identifies inhibitors of the growth of in Escherichia coli under nutrient limitation. Under nutrient stress, bacteria require an expanded biosynthetic capacity that includes the synthesis of amino acids, vitamins, and nucleobases. Growing evidence suggests that these processes may be indispensable to certain pathogens and at particular sites of infection. Indeed, more than 100 biosynthetic enzymes become indispensable to E. coli grown under nutrient stress in vitro. The screening platform described here puts a focus on these novel targets for new antibiotics and prioritizes growth inhibitory compounds that can be suppressed by individual nutrients and pools thereof.


Drug Evaluation, Preclinical , Escherichia coli/drug effects , Escherichia coli/physiology , Nutritional Physiological Phenomena/drug effects , Small Molecule Libraries , Stress, Physiological/drug effects , Anti-Bacterial Agents/pharmacology , Dietary Supplements , Energy Metabolism/drug effects
19.
Curr Environ Health Rep ; 5(1): 125-133, 2018 03.
Article En | MEDLINE | ID: mdl-29417450

PURPOSE OF REVIEW: Developmental toxicity assessments often focus on structural outcomes and overlook subtle metabolic differences which occur during the early embryonic period. Deviant embryonic nutrition can result in later-life disease, including diabetes, obesity, and cardiovascular disease. Prior to placenta-mediated nutrient exchange, the human embryo requires maternally supplied nutritional substrates for growth, called yolk. Here, we compare the biology of the human and zebrafish yolk and review examples of toxicant-mediated perturbation of yolk defects, composition, and utilization. RECENT FINDINGS: Zebrafish embryos, like human embryos, have a protruding yolk sac that serves as a nutritional cache. Aberrant yolk morphology is a common qualitative finding in fish embryotoxicity studies, but quantitative assessment and characterization provides an opportunity to uncover mechanistic targets of toxicant effects on embryonic nutrition. The zebrafish and the study of its yolk sac is an excellent model for uncovering toxicant disruptions to early embryonic nutrition and has potential to discover mechanistic insights into the developmental origins of health and disease.


Disease Models, Animal , Egg Yolk/drug effects , Embryo, Nonmammalian/drug effects , Zebrafish/embryology , Animals , Embryo, Nonmammalian/metabolism , Embryonic Development/drug effects , Nutritional Physiological Phenomena/drug effects , Toxicology/methods
20.
Br J Nutr ; 119(3): 239-249, 2018 02.
Article En | MEDLINE | ID: mdl-29345217

n-3 Fatty acids, flavonoids and resveratrol are well publicised for their beneficial effects on human health and wellbeing. Identifying common, underlying biological mechanisms targeted by these functional foods would therefore be informative for the public health sector for advising on nutritional health and disease, food and drug product development and consumer interest. The aim of this study was to explore the potential effects of gene expression changes associated with n-3 fatty acids EPA and DHA, flavonoids and resveratrol on modifying biological systems and disease pathways. To test this, publicly available human microarray data for significant gene expression changes associated with dietary intervention with EPA/DHA, flavonoids and resveratrol was subjected to pathway analysis and significance testing for overlap with signals from genome-wide association studies (GWAS) for common non-communicable diseases and biological functions. There was an enrichment of genes implicated in immune responses and disease pathways which was common to all of the treatment conditions tested. Analysis of biological functions and disease pathways indicated anti-tumorigenic properties for EPA/DHA. In line with this, significance testing of the intersection of genes associated with these functional foods and GWAS hits for common biological functions (ageing and cognition) and non-communicable diseases (breast cancer, CVD, diabesity, neurodegeneration and psychiatric disorders) identified significant overlap between the EPA/DHA and breast cancer gene sets. Dietary intervention with EPA/DHA, flavonoids and resveratrol can target important biological and disease pathways suggesting a potentially important role for these bioactive compounds in the prevention and treatment of dietary-related diseases.


Diet , Fatty Acids, Omega-3/administration & dosage , Flavonoids/administration & dosage , Immunity/drug effects , Microarray Analysis , Resveratrol/administration & dosage , Adult , Aged , Antineoplastic Agents , Dietary Supplements , Docosahexaenoic Acids/administration & dosage , Eicosapentaenoic Acid/administration & dosage , Female , Functional Food , Gene Expression/drug effects , Genome-Wide Association Study , Health Promotion , Humans , Male , Middle Aged , Nutritional Physiological Phenomena/drug effects , Primary Prevention , Signal Transduction/drug effects
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