scholarly journals Exploration of the Effects of Different Blue LED Light Intensities on Flavonoid and Lipid Metabolism in Tea Plants via Transcriptomics and Metabolomics

2020 ◽  
Vol 21 (13) ◽  
pp. 4606
Author(s):  
Pengjie Wang ◽  
Sirong Chen ◽  
Mengya Gu ◽  
Xiaomin Chen ◽  
Xuejin Chen ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Secondary Metabolism ◽  
Blue Light ◽  
High Intensity ◽  
Future Research ◽  
Hub Gene ◽  
Metabolism Regulation ◽  
Physiological Processes ◽  
Light Quantity ◽  
Tea Plants

Blue light extensively regulates multiple physiological processes and secondary metabolism of plants. Although blue light quantity (fluence rate) is important for plant life, few studies have focused on the effects of different blue light intensity on plant secondary metabolism regulation, including tea plants. Here, we performed transcriptomic and metabolomic analyses of young tea shoots (one bud and two leaves) under three levels of supplemental blue light, including low-intensity blue light (LBL, 50 μmol m–2 s–1), medium-intensity blue light (MBL, 100 μmol m–2 s–1), and high-intensity blue light (HBL, 200 μmol m–2 s–1). The total number of differentially expressed genes (DEGs) in LBL, MBL and HBL was 1, 7 and 1097, respectively, indicating that high-intensity blue light comprehensively affects the transcription of tea plants. These DEGs were primarily annotated to the pathways of photosynthesis, lipid metabolism and flavonoid synthesis. In addition, the most abundant transcription factor (TF) families in DEGs were bHLH and MYB, which have been shown to be widely involved in the regulation of plant flavonoids. The significantly changed metabolites that we detected contained 15 lipids and 6 flavonoid components. Further weighted gene co-expression network analysis (WGCNA) indicated that CsMYB (TEA001045) may be a hub gene for the regulation of lipid and flavonoid metabolism by blue light. Our results may help to establish a foundation for future research investigating the regulation of woody plants by blue light.

scholarly journals Feasible strategies for studying the involvement of DNA methylation and histone acetylation in the stress-induced formation of quality-related metabolites in tea (Camellia sinensis)

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jie Yang ◽  
Dachuan Gu ◽  
Shuhua Wu ◽  
Xiaochen Zhou ◽  
Jiaming Chen ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Histone Acetylation ◽  
Secondary Metabolism ◽  
Regulatory Mechanisms ◽  
Epigenetic Mechanisms ◽  
Research Strategies ◽  
Metabolism Regulation ◽  
Growth Development ◽  
Regulatory Effects ◽  
Tea Plants

AbstractTea plants are subjected to multiple stresses during growth, development, and postharvest processing, which affects levels of secondary metabolites in leaves and influences tea functional properties and quality. Most studies on secondary metabolism in tea have focused on gene, protein, and metabolite levels, whereas upstream regulatory mechanisms remain unclear. In this review, we exemplify DNA methylation and histone acetylation, summarize the important regulatory effects that epigenetic modifications have on plant secondary metabolism, and discuss feasible research strategies to elucidate the underlying specific epigenetic mechanisms of secondary metabolism regulation in tea. This information will help researchers investigate the epigenetic regulation of secondary metabolism in tea, providing key epigenetic data that can be used for future tea genetic breeding.

scholarly journals Role of Insulin in Health and Disease: An Update

2021 ◽  
Vol 22 (12) ◽  
pp. 6403
Author(s):  
Md Saidur Rahman ◽  
Khandkar Shaharina Hossain ◽  
Sharnali Das ◽  
Sushmita Kundu ◽  
Elikanah Olusayo Adegoke ◽  
...  
Keyword(s):  
Insulin Signaling ◽  
Basic Research ◽  
Future Research ◽  
Protective Effects ◽  
Glucose Levels ◽  
Physiological Processes ◽  
Blood Glucose Levels ◽  
Wide Range ◽  
Health And Disease

Insulin is a polypeptide hormone mainly secreted by β cells in the islets of Langerhans of the pancreas. The hormone potentially coordinates with glucagon to modulate blood glucose levels; insulin acts via an anabolic pathway, while glucagon performs catabolic functions. Insulin regulates glucose levels in the bloodstream and induces glucose storage in the liver, muscles, and adipose tissue, resulting in overall weight gain. The modulation of a wide range of physiological processes by insulin makes its synthesis and levels critical in the onset and progression of several chronic diseases. Although clinical and basic research has made significant progress in understanding the role of insulin in several pathophysiological processes, many aspects of these functions have yet to be elucidated. This review provides an update on insulin secretion and regulation, and its physiological roles and functions in different organs and cells, and implications to overall health. We cast light on recent advances in insulin-signaling targeted therapies, the protective effects of insulin signaling activators against disease, and recommendations and directions for future research.

scholarly journals Quantitative Proteomic Analysis of Plasma after Remote Ischemic Conditioning in a Rhesus Monkey Ischemic Stroke Model

Biomolecules ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1164
Author(s):  
Siying Song ◽  
Linlin Guo ◽  
Di Wu ◽  
Jingfei Shi ◽  
Yunxia Duan ◽  
...  
Keyword(s):  
Lipid Metabolism ◽  
Rhesus Monkey ◽  
Proteomic Analysis ◽  
Complement C3 ◽  
Protective Effects ◽  
Plasma Proteome ◽  
Remote Ischemic Conditioning ◽  
Ischemic Conditioning ◽  
Metabolism Regulation ◽  
Induced Changes

Background: Animal and clinical studies have shown that remote ischemic conditioning (RIC) has protective effects for cerebral vascular diseases, with induced humoral factor changes in the peripheral blood. However, many findings are heterogeneous, perhaps due to differences in the RIC intervention schemes, enrolled populations, and sample times. This study aimed to examine the RIC-induced changes in the plasma proteome using rhesus monkey models of strokes. Methods: Two adult rhesus monkeys with autologous blood clot-induced middle cerebral artery (MCA) occlusion underwent RIC interventions twice a week for five consecutive weeks. Each RIC treatment included five cycles of five minutes of ischemia alternating with five minutes of reperfusion of the forearm. The blood samples were taken from the median cubital vein of the monkeys at baseline and immediately after each week’s RIC stimulus. The plasma samples were isolated for a proteomic analysis using mass spectrometry (MS). Results: Several proteins related to lipid metabolism (Apolipoprotein A-II and Apolipoprotein C-II), coagulation (Fibrinogen alpha chain and serpin), immunoinflammatory responses (complement C3 and C1), and endovascular hemostasis (basement membrane-specific heparan sulfate proteoglycan) were significantly modulated after the RIC intervention. Many of these induced changes, such as in the lipid metabolism regulation and anticoagulation responses, starting as early as two weeks following the RIC intervention. The complementary activation and protection of the endovascular cells occurred more than three weeks postintervention. Conclusions: Multiple protective effects were induced by RIC and involved lipid metabolism regulation (anti-atherogenesis), anticoagulation (antithrombosis), complement activation, and endovascular homeostasis (anti-inflammation). In conclusion, this study indicates that RIC results in significant modulations of the plasma proteome. It also provides ideas for future research and screening targets.

scholarly journals AMPK: a therapeutic target of heart failure—not only metabolism regulation

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
Xuan Li ◽  
Jia Liu ◽  
Qingguo Lu ◽  
Di Ren ◽  
Xiaodong Sun ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Function ◽  
Critical Role ◽  
Ampk Activation ◽  
Atp Production ◽  
Metabolism Regulation ◽  
Physiological Processes ◽  
Clinical Drugs ◽  
Serious Disease ◽  
Amp Activated Protein Kinase

Abstract Heart failure (HF) is a serious disease with high mortality. The incidence of this disease has continued to increase over the past decade. All cardiovascular diseases causing dysfunction of various physiological processes can result in HF. AMP-activated protein kinase (AMPK), an energy sensor, has pleiotropic cardioprotective effects and plays a critical role in the progression of HF. In this review, we highlight that AMPK can not only improve the energy supply in the failing heart by promoting ATP production, but can also regulate several important physiological processes to restore heart function. In addition, we discuss some aspects of some potential clinical drugs which have effects on AMPK activation and may have value in treating HF. More studies, especially clinical trials, should be done to evaluate manipulation of AMPK activation as a potential means of treating HF.

scholarly journals Oogenesis and lipid metabolism in the deep-sea sponge Phakellia ventilabrum: an histological, lipidomic and transcriptomic approach

2021 ◽  
Author(s):  
Vasiliki Koutsouveli ◽  
David Balgoma ◽  
Antonia Checa ◽  
Mikael Hedeland ◽  
Ana Riesgo ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Metabolism ◽  
Deep Sea ◽  
Expression Patterns ◽  
Rna Seq ◽  
Beta Oxidation ◽  
Animal Reproduction ◽  
Physiological Processes ◽  
Key Species ◽  
Fatty Acid Beta Oxidation

Abstract Background Sponges contain an astounding diversity of lipids which serve in several biological functions, including yolk formation in their oocytes and the embryos. On animal reproduction, lipids constitute one of the main energy storage forms for the adult and the offspring. The study of lipid metabolism during reproduction can provide information on food-web dynamics and energetic needs of the populations in their habitats, however, there are no studies focusing on the lipid metabolism of sponges during seasonal reproduction. The deep-sea sponge Phakellia ventilabrum (Demospongiae, Bubarida) is a key species of North-Atlantic sponge grounds, but its reproductive biology is not known. In this study, we used histological sections, lipidome profiling (UHPLC-MS), and transcriptomic analysis (RNA-seq) with goal to i. assess the reproductive strategy and seasonality of this species, ii. examine the relative changes in the lipidome signal, and the gene expression patterns (RNA-seq) of enzymes participating in lipid metabolism in female specimens during gametogenesis.Results P. ventilabrum is an oviparous and most certainly gonochoristic species, reproducing in May and September in the different studied areas. Half of specimens were reproducing, generating two to five oocytes per mm2. Oocytes accumulated both protein and lipid droplets. As oogenesis progressed, the signal of most of the unsaturated and monounsaturated triacylglycerides increased, as well as of few other phospholipids. Most of the other lipids and especially those with > 3 unsaturations showed a decrease in signal during the oocyte maturation. In parallel, we detected upregulated genes in female tissues related to triacylglyceride biosynthesis and others related to fatty acid beta-oxidation.Conclusions Triacylglycerides are probably the main type of lipid forming the yolk since this lipid category has the most marked changes, while some other phospholipids may also have a role in oogenesis. In parallel, other lipid categories were oxidized, leading to fatty acid beta-oxidation to cover the energy requirements of female individuals during oogenesis. Variations in the signal of most lipids between the different locations and months suggest that sponges, apart from their own mechanisms of lipid biosynthesis, exploit the food availability in their surroundings to cover the energetic demands in their physiological processes.

scholarly journals Adaptations in lipid metabolism in adipose tissue induced by high intensity training

2015 ◽  
Vol 29 (S1) ◽  
Author(s):  
Letícia Cordeiro ◽  
Carolina Moreira ◽  
Érica Mario ◽  
Angélica Rodrigues ◽  
Adaliene Ferreira ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Lipid Metabolism ◽  
High Intensity ◽  
High Intensity Training ◽  
Intensity Training

Light quantity controls leaf-cell and chloroplast development in Arabidopsis thaliana wild type and blue-light-perception mutants

Planta ◽  
2000 ◽  
Vol 211 (6) ◽  
pp. 807-815 ◽  
Author(s):  
Emma Weston ◽  
Keira Thorogood ◽  
Giovanna Vinti ◽  
Enrique López-Juez
Keyword(s):  
Arabidopsis Thaliana ◽  
Blue Light ◽  
Chloroplast Development ◽  
Leaf Cell ◽  
Light Perception ◽  
Wild Type ◽  
Light Quantity

Exposure of 3T3 mouse Fibroblasts and Collagen to High Intensity Blue Light

2009 ◽  
pp. 1352-1355 ◽  
Author(s):  
S. Smith ◽  
M. Maclean ◽  
S. J. MacGregor ◽  
J. G. Anderson ◽  
M. H. Grant
Keyword(s):  
Blue Light ◽  
High Intensity ◽  
Mouse Fibroblasts
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