Molecular mechanisms underlying protective role of quercetin in attenuating Alzheimer's disease

Publication date: Available online 23 March 2019Source: Life SciencesAuthor(s): Elizabeta Zaplatic, Muhammed Bule, Syed Zahid Ali Shah, Md. Sahab Uddin, Kamal NiazAbstractQuercetin belongs to the flavonoids family, which is present in most of the plants including fruits, vegetables, green tea and even in red wine having antioxidant activities. It is available as a food supplement in the market and has physiological health effects. Quercetin has anti-inflammatory, anticancer and anti-prostate activities along with its beneficial effects on high cholesterol, kidney transplantation, asthma, diabetes, viral infections, pulmonary, schizophrenia and cardiovascular diseases. Quercetin possesses scavenging potential of hydroxyl radical (OH−), hydrogen peroxide (H2O2), and superoxide anion (O2−). These reactive oxygen species (ROS) hampers lipid, protein, amino acids and deoxyribonucleic acid (DNA) processing leading to epigenetic alterations. Quercetin has the ability to combat these harmful effects. ROS plays a vital role in the progression of Alzheimer's disease (AD), and we propose that quercetin would be the best choice to overcome cellular and molecular signals in regulating normal physiological functions. However, data are not well documented regarding exact cellular mechanisms of quercetin. The neuroprotective effects of quercetin are mainly due to potential up- and/or down-regulation of cytokines via nuclear factor (erythroid-derived 2)-like 2 (Nrf2), Paraoxonase-...
Source: Life Sciences - Category: Biology Source Type: research

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Conclusion: Tacrolimus may be associated with optic neuropathy and PRES at the initial presentation to an ophthalmologist.Case Rep Ophthalmol 2019;10:140 –144
Source: Case Reports in Ophthalmology - Category: Opthalmology Source Type: research
This study aimed to evaluate the therapeutic effect of folic acid (FA) on diabetic retinopathy (DR) in a genetic mouse model of obese type 2 diabetes mellitus (T2D). C57BL/KsJ-db/db(db/db) T2D mice were divided into control, FA, metformin (MET), and FA plus MET groups (n = 10/group). Serum levels of glucose, glycated hemoglobin, and insulin were determined weekly. The retinal thickness was measured using optical coherence tomography (OCT) at 4 weeks after treatments. The retinal expression and serum levels of vascular formation, inflammation, and oxidative stress-associated molecules were examined. Our results demonstrated...
Source: Ophthalmic Research - Category: Opthalmology Source Type: research
Conclusions: Eyes from diabetic patients in the initial stages of DR with different Early Treatment Diabetic Retinopathy Study gradings show similar prevalence of SCME and CIME, independent of the severity of the retinopathy. Retinal edema is located mainly in the INL and appears to be mostly extracellular except in the earliest stages of diabetic retinal disease where intracellular edema predominates.Ophthalmic Res
Source: Ophthalmic Research - Category: Opthalmology Source Type: research
This study proved that resveratrol can be efficiently encapsulated with zein without modifying its native form. Size of nanoencapsulated particles obtained ranged from 230 to 330 nm. Nanoencapsulation through electrospraying process yielded 68.49% encapsulation efficiency at 1:50 resveratrol to zein w/w%. Further, nanoencapsulated resveratrol showed better stability and sustained release profiles as compared to the unencapsulated form. Nanoencapsulation with zein protected resveratrol in simulated stomach conditions and released resveratrol in the intestinal condition. Additionally, nanoencapsulated resveratrol showed in...
Source: Journal of Functional Foods - Category: Nutrition Source Type: research
Publication date: June 2019Source: Journal of Functional Foods, Volume 57Author(s): Kamesh Venkatakrishnan, Hui-Fang Chiu, Chin-Kun WangAbstractDiabetes mellitus (DM) and its related complications are the serious public health concern globally. This is the first review highlight on major functional foods and herbs with anti-diabetic activity particularly focus on type 2 diabetes mellitus (T2DM) with special reference to clinical trials and their proposed anti-diabetic mechanisms. This contribution summarizes the current prevalence of DM, etiology and pathophysiology, complications related to DM, current conventional treatm...
Source: Journal of Functional Foods - Category: Nutrition Source Type: research
Background: The circadian timing system or circadian clock plays a crucial role in many biological processes, such as the sleep-wake cycle, hormone secretion, cardiovascular health, glucose homeostasis, and body temperature regulation. Energy balance is also one of the most important cornerstones of metabolic processes, whereas energy imbalance is associated with many diseases (i.e., obesity, diabetes, cardiovascular disease). Circadian clock is the main regulator of metabolism, and this analysis provides an overview of the bidirectional effect of circadian rhythm on metabolic processes and energy balance.Summary: The circ...
Source: Annals of Nutrition and Metabolism - Category: Nutrition Source Type: research
This study briefly reviews the physiological mechanisms of exercise therapy in diabetes and the potential role of these cytokines in exercise.Key Messages: More high-quality, targeted, randomized controlled studies are needed urgently, from mechanism study to treatment direction, to provide a more theoretical basis for exercise therapy and to explore new therapeutic targets for diabetes.Ann Nutr Metab 2019;74:313 –321
Source: Annals of Nutrition and Metabolism - Category: Nutrition Source Type: research
Background: Health risks associated with the high consumption of sugar-sweetened beverages (SSBs) include overweight or obesity and their complications such as diabetes, as well as oral and dental decay, among others.Aim: The aim of the present statement is to inform health care professionals, parents, care-givers, teachers and school head teachers, stakeholders and governing bodies about the risks associated with drinking SSBs in infants, children and adolescents.Methods: We searched PubMed and the Cochrane databases for English language studies published from 2010 through October 1, 2018, for randomized clinical trials, ...
Source: Annals of Nutrition and Metabolism - Category: Nutrition Source Type: research
Conversely, the so-called Southern diet, which focuses on meats, fried and processed foods and lots of sweet tea, was tied to a 72% increased risk of heart failure.
Source: WebMD Health - Category: Consumer Health News Source Type: news
Publication date: June 2019Source: Epilepsy &Behavior, Volume 95Author(s): Samaneh Bagheri, Ahzdar Heydari, Azam Alinaghipour, Mahmoud SalamiAbstractEpilepsy is one of the most common neurological disorders that severely affect life quality of many people worldwide. Ion transport in the neuronal membrane, inhibitory–excitatory mechanisms, and regulatory modulator systems have been implicated in the pathogenesis of epilepsy. A bidirectional communication is proposed between brain and gut where the brain modulates the gastrointestinal tract, and the gut can affect brain function and behavior. The gut microbiome tak...
Source: Epilepsy and Behavior - Category: Neurology Source Type: research
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