scholarly journals Identification of the Causative Genes of Calcium Deficiency Disorders in Horticulture Crops: A Systematic Review

Agriculture ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 906
Author(s):  
Takanori Kuronuma ◽  
Hitoshi Watanabe
Keyword(s):  
Gene Expression ◽  
Systematic Review ◽  
Calcium Deficiency ◽  
Severe Problem ◽  
Blossom End Rot ◽  
Genetic Level ◽  
Meta Analyses ◽  
Functional Analyses ◽  
Ca2 Channels

The occurrence of calcium (Ca2+) deficiency disorders is a severe problem in the production of horticulture crops. Recently, several studies have investigated the role of gene expression in Ca2+ deficiency disorders and/or Ca2+ accumulation, providing an indication of the mechanism of Ca2+ deficiency disorders at the genetic level. To determine the relation between gene expression and the occurrence of Ca2+ deficiency disorders, we conducted a systematic review of the literature using the Preferred Reporting Items for Systematic Reviews and Meta-analyses protocol. In our initial search, we extracted studies investigating the relationships between Ca2+ deficiency disorders (tipburn and blossom-end rot) and gene expression. In our second search, we extracted studies involving functional analyses of the genes associated with Ca2+ deficiency and/or Ca2+ accumulation in plant organs. Thirty-seven articles were extracted from both searches. Studies on Ca2+ movement-related genes (Ca2+ antiporters, calreticulin, Ca2+ pumps, Ca2+ channels, and pectin methylesterases) accounted for the majority of these articles. Particularly, the effects of the expression of CAXs (Ca2+/H+ antiporters) and CRT (calreticulin) on the occurrence of Ca2+ deficiency disorders were demonstrated in studies extracted from both searches. Further research focusing on these genes may reveal the causative genes for Ca deficiency disorders in different horticulture crops. We hope that the knowledge synthesized in this systematic review will contribute to the accumulation of further knowledge and elucidation of the causes of Ca2+ deficiency disorders.

scholarly journals Fatty acids, epigenetic mechanisms and chronic diseases: a systematic review

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
K. González-Becerra ◽  
O. Ramos-Lopez ◽  
E. Barrón-Cabrera ◽  
J. I. Riezu-Boj ◽  
F. I. Milagro ◽  
...  
Keyword(s):  
Gene Expression ◽  
Systematic Review ◽  
Fatty Acids ◽  
Chronic Diseases ◽  
Gene Expression Regulation ◽  
Saturated Fatty Acids ◽  
Dietary Fatty Acids ◽  
Epigenetic Mechanisms ◽  
Metabolic Alterations

Abstract Background Chronic illnesses like obesity, type 2 diabetes (T2D) and cardiovascular diseases, are worldwide major causes of morbidity and mortality. These pathological conditions involve interactions between environmental, genetic, and epigenetic factors. Recent advances in nutriepigenomics are contributing to clarify the role of some nutritional factors, including dietary fatty acids in gene expression regulation. This systematic review assesses currently available information concerning the role of the different fatty acids on epigenetic mechanisms that affect the development of chronic diseases or induce protective effects on metabolic alterations. Methods A targeted search was conducted in the PubMed/Medline databases using the keywords “fatty acids and epigenetic”. The data were analyzed according to the PRISMA-P guidelines. Results Consumption fatty acids like n-3 PUFA: EPA and DHA, and MUFA: oleic and palmitoleic acid was associated with an improvement of metabolic alterations. On the other hand, fatty acids that have been associated with the presence or development of obesity, T2D, pro-inflammatory profile, atherosclerosis and IR were n-6 PUFA, saturated fatty acids (stearic and palmitic), and trans fatty acids (elaidic), have been also linked with epigenetic changes. Conclusions Fatty acids can regulate gene expression by modifying epigenetic mechanisms and consequently result in positive or negative impacts on metabolic outcomes.

Qualitative online research in tourism – a systematic review of the literature

2019 ◽  
Vol 75 (2) ◽  
pp. 448-465 ◽  
Author(s):  
Saeed Pahlevan-Sharif ◽  
Paolo Mura ◽  
Sarah N.R. Wijesinghe
Keyword(s):  
Systematic Review ◽  
Epistemological Beliefs ◽  
Online Research ◽  
Content Type ◽  
Qualitative Approaches ◽  
Meta Analyses ◽  
Online Methods ◽  
Conference Papers ◽  
Virtual Interactions

Purpose This paper aims to present a systematic review of tourism articles using qualitative online methods. By focussing on tourism journals, this work explores the paradigmatic beliefs, methodological approaches and methods underpinning tourism qualitative online research. Design/methodology/approach This review was conducted systematically by following the reporting checklist of the preferred reporting items for systematic reviews and meta-analyses by the Centre for Reviews and Dissemination. Findings Overall, this systematic review indicates that the ontological and epistemological beliefs guiding online research are not clearly expressed by tourism scholars. It also shows that the possibility of using the internet for more interactive and participatory forms of research has not been fully explored by tourism scholars. Research limitations/implications This paper expands tourism scholars’ awareness of the range of qualitative approaches/methods available by suggesting additional research instruments that could replace or complement the traditional ones. However, by selecting only indexed journal papers, other sources of publications, such as papers published in non-Scopus and non-Web-of-Science journals, books, book chapters and conference papers, were not included in the current review. Originality/value This work emphasizes the important role of cyberspace in facilitating virtual interactions between researchers and participants in the co-construction of qualitative empirical material.

scholarly journals Possible role of diet in cancer: systematic review and multiple meta-analyses of dietary patterns, lifestyle factors, and cancer risk

2017 ◽  
Vol 75 (6) ◽  
pp. 405-419 ◽  
Author(s):  
Giuseppe Grosso ◽  
Francesca Bella ◽  
Justyna Godos ◽  
Salvatore Sciacca ◽  
Daniele Del Rio ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cancer Risk ◽  
Dietary Patterns ◽  
Lifestyle Factors ◽  
Meta Analyses

scholarly journals Human mobility and COVID-19 transmission: a systematic review and future directions

2021 ◽  
Author(s):  
Mengxi Zhang ◽  
Siqin Wang ◽  
Tao Hu ◽  
Xiaokang Fu ◽  
Xiaoyue Wang ◽  
...  
Keyword(s):  
Systematic Review ◽  
Statistical Models ◽  
Human Mobility ◽  
Rapid Change ◽  
Mobility Control ◽  
Mobility Data ◽  
Prisma Statement ◽  
Meta Analyses ◽  
The Relationship

AbstractWithout a widely distributed vaccine, controlling human mobility has been identified and promoted as the primary strategy to mitigate the transmission of COVID-19. Many studies have reported the relationship between human mobility and COVID-19 transmission by utilizing the spatial-temporal information of mobility data from various sources. To better understand the role of human mobility in the pandemic, we conducted a systematic review of articles that measure the relationship between human mobility and COVID-19 in terms of their data sources, statistical models, and key findings. Following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, we selected 47 articles from Web of Science Core Collection up to September 2020. Restricting human mobility reduced the transmission of COVID-19 spatially, although the effectiveness and stringency of policy implementation vary temporally and spatially across different stages of the pandemic. We call for prompt and sustainable measures to control the pandemic. We also recommend researchers 1) to enhance multi-disciplinary collaboration; 2) to adjust the implementation and stringency of mobility-control policies in corresponding to the rapid change of the pandemic; 3) to improve statistical models used in analyzing, simulating, and predicting the transmission of the disease; and 4) to enrich the source of mobility data to ensure data accuracy and suability.

scholarly journals The Role of Decaffeinated Coffee in Reducing the Risk of Hypertension: A Systematic Review

2021 ◽  
pp. 99-116
Author(s):  
Nurheni Sri Palupi ◽  
Fatimah
Keyword(s):  
Systematic Review ◽  
Blood Pressure ◽  
Data Extraction ◽  
Premature Death ◽  
Caffeine Content ◽  
High Prevalence ◽  
The World ◽  
Decaffeinated Coffee ◽  
Meta Analyses

Hypertension or increased blood pressure is a degenerative disease with a high prevalence, as well as the biggest cause of premature death in the world. Meanwhile, coffee is a popular and most consumed beverage around the world. Coffee can harm some people with certain health problems including hypertension due to its caffeine content. Decaffeinated coffee is known to be an alternative for people with hypertension with reduced caffeine content up to 97%. However, studies on the role of decaffeinated coffee in reducing the risk of hypertension are still varied indicating that a systematic review is needed. Hence, this study summarizes the evidence related to the role of decaffeinated coffee in reducing the risk of hypertension by using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The inclusion criteria for scientific journals were determined based on Participants, Intervention, Control, and Outcome (PICO). The search using boolean operation resulted in 13 research articles for data extraction. The result revealed that decaffeinated coffee could decrease or did not give any effect on blood pressure or another biological hypertension marker compared to regular coffee.

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