scholarly journals The Protective Role of Ectomyccorhizas in Relation to Pinus sylvestris L. Growing in Areas Contaminated with Heavy Metals

2020 ◽  
Vol 29 (5) ◽  
pp. 3049-3055
Author(s):  
Katarzyna Bandurska ◽  
Agnieszka Berdowska ◽  
Piotr Krupa
Keyword(s):  
Heavy Metals ◽  
Pinus Sylvestris ◽  
Protective Role

scholarly journals Phytochemicals Mediated Remediation of Neurotoxicity Induced by Heavy Metals

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Vivek Kumar Gupta ◽  
Shweta Singh ◽  
Anju Agrawal ◽  
Nikhat Jamal Siddiqi ◽  
Bechan Sharma
Keyword(s):  
Heavy Metals ◽  
Free Radicals ◽  
Adverse Effects ◽  
Current Knowledge ◽  
Protective Role ◽  
Cellular Systems ◽  
Cadmium Lead ◽  
Abiotic And Biotic Factors ◽  
Almost All

Almost all the environmental components including both the abiotic and biotic factors have been consistently threatened by excessive contamination of heavy metals continuously released from various sources. Different heavy metals have been reported to generate adverse effects in many ways. Heavy metals induced neurotoxicity and impairment in signalling cascade leading to cell death (apoptosis) has been indicated by several workers. On one hand, these metals are required by the cellular systems to regulate various biological functions of normal cells, while on the other their biomagnification in the cellular systems produces adverse effects. The mechanism by which the heavy metals induce neurotoxicity follows free radicals production pathway(s) specially the generation of reactive oxygen species and reactive nitrogen species. These free radicals produced in excess have been shown to create an imbalance between the oxidative and antioxidative systems leading to emergence of oxidative stress, which may cause necrosis, DNA damage, and many neurodegenerative disorders. This mini review summarizes the current knowledge available on the protective role of varied natural products isolated from different herbs/plants in imparting protection against heavy metals (cadmium, lead, arsenic, and mercury) mediated neurotoxicity.

scholarly journals The protective role of propolis against multi heavy metals-induced oxidative stress-hepato-renal damage in the male of albino rats

2021 ◽  
Author(s):  
Ayman Ahmed Bassiouny El-Amawy ◽  
Samir Attia Mohammed Zaahkouk ◽  
Hesham Gamal Abdel Rasheed ◽  
Bassem Elsayed Elaraby Mohammed
Keyword(s):  
Heavy Metals ◽  
Oral Administration ◽  
Antioxidant Defense System ◽  
Protective Role ◽  
Albino Rats ◽  
Protective Effects ◽  
Toxic Heavy Metals ◽  
Propolis Extract ◽  
Liver And Kidney

Abstract The study was designed to clarify the hepato-renal protective effects of propolis extract against heavy metals-induced toxicity via oral administration to the males of albino rats. Lead (Pb), Nickel (Ni), Cadmium (Cd), and Antimony (Sb) are toxic heavy metals have the ability to produce reactive radicals in the biological systems causing public and animals health hazards through disrupting balances between pro-oxidant and antioxidant defense system, resulting in excessive reactive oxygen species (ROS) production. The most commonly affected organs are liver and kidney. Propolis is a natural product with different shapes and resinous substance collected by honey bees, it attenuates many diseases damage due to its anti-oxidative action and its potentiality to minimize the deleterious effects of free radicals on tissues. The concentrations of Pb, Cd, Ni and Sb as well as the activities of antioxidants endogenous enzymes including; glutathione peroxidase (Gpx), glutathione reductase (GR), catalase (CAT), and superoxide dismutase (SOD) were all determined in the tissues of liver and kidney; while aspartate transaminase (ASAT), alanine transaminase (ALAT), total protein (TP), urea and createnine, were measured in the serum of experimental rats beside histopathologicl examination in the tissues of liver and kidney. The oral administration of propolis provided a significantly therapeutic role against multi-metals-induced hepato-renal toxicity with relative improving to histopathological changes because of its scavenging and chelating properties as concluded from the present investigation.

scholarly journals The role of biogeochemical barriers in protecting aquatic ecosystems against pollution in agricultural environment

2015 ◽  
Vol 11 ◽  
pp. 9-15 ◽  
Author(s):  
Edyta Łaskawiec
Keyword(s):  
Heavy Metals ◽  
Plant Diversity ◽  
Aquatic Ecosystems ◽  
Protective Role ◽  
Vital Role ◽  
Agricultural Landscapes ◽  
Water Bodies ◽  
Agricultural Environment ◽  
Accumulation Capacity

This review discusses the importance of ecotones with high plant diversity which are highly effective in retaining pollutants and waste. Biogeochemical barriers play a vital role in eliminating biogenic pollutants, pesticides and heavy metals. Belts of rush plants and meadow vegetation considerably expand the accumulation capacity of water bodies and watercourses. The mechanisms responsible for the protective role of biogeochemical barriers involve various processes such as sorption, sedimentation, denitrification and assimilation, which require the coexistence of plants and microorganisms in aquatic ecosystems. Buffer barriers were presented as one of the ecohydrology tools in agricultural landscapes.

The toxic effects of heavy metals on rat bone marrow in vitro erythropoiesis: Protective role of hemin and zinc

1984 ◽  
Vol 35 (1) ◽  
pp. 97-103 ◽  
Author(s):  
J.D. Lutton ◽  
N.G. Ibraham ◽  
M. Friedland ◽  
R.D. Levere
Keyword(s):  
Heavy Metals ◽  
Bone Marrow ◽  
Protective Role ◽  
Toxic Effects ◽  
Rat Bone

Protective role of citric acid against oxidative stress induced by heavy metals in Caenorhabditis elegans

2019 ◽  
Vol 26 (36) ◽  
pp. 36820-36831
Author(s):  
Shaojuan Song ◽  
Yan Han ◽  
Yun Zhang ◽  
Honglian Ma ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Heavy Metals ◽  
Caenorhabditis Elegans ◽  
Citric Acid ◽  
Protective Role

Protective role of peroxiredoxin-4 in heart failure

2020 ◽  
Vol 134 (1) ◽  
pp. 71-72
Author(s):  
Naseer Ahmed ◽  
Masooma Naseem ◽  
Javeria Farooq
Keyword(s):  
Heart Failure ◽  
Cardiac Fibroblasts ◽  
Protective Role ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Total Antioxidant ◽  
Galectin 3 ◽  
Consequent Increase ◽  
And Oxidative Stress

Abstract Recently, we have read with great interest the article published by Ibarrola et al. (Clin. Sci. (Lond.) (2018) 132, 1471–1485), which used proteomics and immunodetection methods to show that Galectin-3 (Gal-3) down-regulated the antioxidant peroxiredoxin-4 (Prx-4) in cardiac fibroblasts. Authors concluded that ‘antioxidant activity of Prx-4 had been identified as a protein down-regulated by Gal-3. Moreover, Gal-3 induced a decrease in total antioxidant capacity which resulted in a consequent increase in peroxide levels and oxidative stress markers in cardiac fibroblasts.’ We would like to point out some results stated in the article that need further investigation and more detailed discussion to clarify certain factors involved in the protective role of Prx-4 in heart failure.

Parenting Behaviors and Anxiety in Young Adults

2015 ◽  
Vol 36 (3) ◽  
pp. 170-176 ◽  
Author(s):  
Erin N. Stevens ◽  
Joseph R. Bardeen ◽  
Kyle W. Murdock
Keyword(s):  
Effortful Control ◽  
Parenting Behaviors ◽  
Protective Role ◽  
Anxiety Symptoms ◽  
Interactive Effects ◽  
Parental Overprotection ◽  
High Control ◽  
Development Of Anxiety ◽  
The Relationship

Parenting behaviors – specifically behaviors characterized by high control, intrusiveness, rejection, and overprotection – and effortful control have each been implicated in the development of anxiety pathology. However, little research has examined the protective role of effortful control in the relation between parenting and anxiety symptoms, specifically among adults. Thus, we sought to explore the unique and interactive effects of parenting and effortful control on anxiety among adults (N = 162). Results suggest that effortful control uniquely contributes to anxiety symptoms above and beyond that of any parenting behavior. Furthermore, effortful control acted as a moderator of the relationship between parental overprotection and anxiety, such that overprotection is associated with anxiety only in individuals with lower levels of effortful control. Implications for potential prevention and intervention efforts which specifically target effortful control are discussed. These findings underscore the importance of considering individual differences in self-regulatory abilities when examining associations between putative early-life risk factors, such as parenting, and anxiety symptoms.

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