Corrigendum to "A detailed review on the phytochemical profiles and antidiabetic mechamisms of momordica charantia" [Heliyon 8 4 April 2022 Article e09253]

[This corrects the article DOI: 10.1016/j.heliyon.2022.e09253.].

Unveiling the dark side of glucose-regulated protein 78 (GRP78) in cancers and other human pathology: a systematic review

Glucose-Regulated Protein 78 (GRP78) is a chaperone protein that is predominantly expressed in the lumen of the endoplasmic reticulum. GRP78 plays a crucial role in protein folding by assisting in the assembly of misfolded proteins. Under cellular stress conditions, GRP78 can translocate to the cell surface (csGRP78) were it interacts with different ligands to initiate various intracellular pathways. The expression of csGRP78 has been associated with tumor initiation and progression of multiple cancer types. This review provides a comprehensive analysis of the existing evidence on the roles of GRP78 in various types of cancer and other human pathology. Additionally, the review discusses the current understanding of the mechanisms underlying GRP78's involvement in tumorigenesis and cancer advancement. Furthermore, we highlight recent innovative approaches employed in downregulating GRP78 expression in cancers as a potential therapeutic target.

Evaluation of the Antioxidant Potential of Aqueous Extracts of Moringa oleifera Leaf and Cocos nucifera Husk: A Comparative Analysis

Background: Oxidative Stress (OS) can result in several diseases, such as cancer or neurodegenerative illnesses. Plant antioxidants can supplement the body’s antioxidant system, thereby reducing cell oxidation resulting from OS. Objectives: In this research, the antioxidant potential of aqueous husk extract of Cocos nucifera and aqueous leaf extract of Moringa oleifera was evaluated and compared. Methods:Total Phenolic Contents (TPCs), iron-chelating ability, Ferric Reducing Antioxidant Power (FRAP), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging antioxidant activity of aqueous husk extract of Cocos nucifera and aqueous leaf extract of Moringa oleifera are determined spectrophotometrically at varying concentrations (25, 50, 75, 100, 125µg/mL) and 1-sample t test statistical analysis was done using GraphPad Prism. The statistical significance was set at P<0.05. Results: The aqueous husk extract of Cocos nucifera and aqueous leaf extract of Moringa oleifera possess antioxidant activities at all tested concentrations. Significant increases were observed in TPCs, iron-chelating ability, and FRAP of aqueous leaf extract of Moringa oleifera compared with aqueous husk extracts of Cocos nucifera at the same concentration. In contrast, a significant decrease in DPPH scavenging activities was observed. Conclusion: Both aqueous husk extract of Cocos nucifera and aqueous leaf extract of Moringa oleifera are potent antioxidant agents and could be useful in supplementing the endogenous antioxidant system. Albeit, the aqueous leaf extract of Moringa oleifera is a more powerful antioxidant agent.

A detailed review on the phytochemical profiles and anti-diabetic mechanisms of Momordica charantia

Diabetes mellitus is the most well-known endocrine dilemma suffered by hundreds of million people globally, with an annual mortality of more than one million people. This high mortality rate highlights the need for in-depth study of anti-diabetic agents. This review explores the phytochemical contents and anti-diabetic mechanisms of M. charantia (cucurbitaceae). Studies show that M. charantia contains several phytochemicals that have hypoglycemic effects, thus, the plant may be effective in the treatment/management of diabetes mellitus. Also, the biochemical and physiological basis of M. charantia anti-diabetic actions is explained. M. charantia exhibits its anti-diabetic effects via the suppression of MAPKs and NF-κβin pancreatic cells, promoting glucose and fatty acids catabolism, stimulating fatty acids absorption, inducing insulin production, ameliorating insulin resistance, activating AMPK pathway, and inhibiting glucose metabolism enzymes (fructose-1,6-bisphosphate and glucose-6-phosphatase). Reviewed literature was obtained from credible sources such as PubMed, Scopus, and Web of Science.