Effect of hexavalent chromium on the environment and removal techniques: A review

Ukhurebor, Kingsley Eghonghon; Aigbe, Uyiosa Osagie; Onyancha, Robert Birundu; Nwankwo, Wilson; Osibote, Otolorin Adelaja; Paumo, Hugues Kamdem; Ama, Onoyivwe Monday; Adetunji, Charles Oluwaseun; Siloko, Israel Uzuazor

doi:10.1016/j.jenvman.2020.111809

Cited by 230 publications

(78 citation statements)

References 259 publications

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“…Chromium (Cr) is a natural metal element and most frequently detected in soil, ground water, air, rocks, and living organisms. Chromium and chromium-containing compounds are prevalent, mainly due to their extensive industrial applications, such as electroplating, leather tanning, stainless steel production, water cooling, printing inks, textile dyeing, pigment manufacturing of wood, drilling muds, fireworks, wood preservation, and anti-corrosion and conversion coatings (Ukhurebor et al, 2021). Trivalent chromium [Cr (III)] and hexavalent chromium [Cr (VI)] are the two stable valence states typically found in workplace and environment (Kotas and Stasicka, 2000;Costa, 2003).…”

Section: Introductionmentioning

confidence: 99%

Melatonin Attenuates Chromium (VI)-Induced Spermatogonial Stem Cell/Progenitor Mitophagy by Restoration of METTL3-Mediated RNA N6-Methyladenosine Modification

Yang

et al. 2021

Front. Cell Dev. Biol.

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Spermatogonial stem cells (SSCs) are the basis of spermatogenesis, and any damage to SSCs may result in spermatogenic disorder and male infertility. Chromium (Cr) (VI) is a proven toxin, mutagen, and carcinogen, perpetually detrimental to environmental organisms due to its intricate and enduring detoxification process in vivo. Despite this, the deleterious effects of Cr (VI) on SSCs and the underlying mechanisms remain poorly understood. In this study, we identified that Cr (VI) impaired male reproductive system in mouse testes and induced mitochondrial dynamic imbalance and mitophagy in SSCs/progenitors. Cr (VI) also downregulated the RNA N6-methyladenosine (m6A) modification levels in mitochondrial dynamic balance and mitophagy genes in SSCs/progenitors. Inspiringly, the toxic effects of Cr (VI) could be relieved by melatonin pretreatment. Melatonin alleviated Cr (VI)-induced damage to male reproductive system and autophagy in mouse testes. Melatonin also attenuated Cr (VI)-induced cell viability loss and reactive oxygen species (ROS) generation, as well as mitochondrial dynamic disorders and mitophagy in SSCs/progenitors. The protective roles of melatonin against Cr (VI)-induced mitophagy were exerted by restoration of METTL3-mediated RNA m6A modification and activation of mitochondrial fusion proteins MFN2 and OPA1, as well as inhibition of the mitophagy BNIP3/NIX receptor pathway. Thus, our study provides novel insights into the molecular mechanisms for RNA m6A modification underlying the gene regulatory network responsible for mitochondrial dynamic balance, and also lays new experimental groundwork for treatment of Cr (VI)-induced damage to male fertility.

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Section: Introductionmentioning

confidence: 99%

Melatonin Attenuates Chromium (VI)-Induced Spermatogonial Stem Cell/Progenitor Mitophagy by Restoration of METTL3-Mediated RNA N6-Methyladenosine Modification

Yang

et al. 2021

Front. Cell Dev. Biol.

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“…Moreover, some types of metals exist in various forms of protonated metal oxides with different interactions with thiomers. Chromium ions are in the form of H 2 CrO 4 at pH<1, H 2 CrO 4 /HCrO 4 − at 1<pH<4, and HCrO 4 − /CrO 4 2− at pH>4 [33] . Arsenic mainly is in the forms of arsenite (H 3 AsO 3 ) and arsenate (H 3 AsO 4 ) in the aqueous medium [34] .…”

Section: Factors Affecting the Metal Adsorption By Thiomersmentioning

confidence: 99%

Thiomers of Chitosan and Cellulose: Effective Biosorbents for Detection, Removal and Recovery of Metal Ions from Aqueous Medium

Seidi

Saeb

Huang

et al. 2021

The Chemical Record

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Removal of toxic metal ions using adsorbents is a well‐known strategy for water treatment. While chitosan and cellulose can adsorb weakly some types of metals, incorporating thiols as metal chelating agents can improve their sorption behaviors significantly. Presented in this review are the various chemical modification strategies applicable for thiolation of chitosan and cellulose in the forms of mercaptans, xanthates and dithiocarbamates. Moreover, much attention has been paid to the specific strategies for controlling the thiolation degree and characterization approaches for establishing the structure‐property relationship. Also, the kinetics and isotherm models that elucidate the adsorption processes and mechanisms induced by the thiomers have been explained. These thiomers have found great potentials in the applications associated with metal removal, metal recovery and metal detection.

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“…Climate change has to do with somewhat variation in the climatic conditions over some duration of time resulting from the changes in a natural process and human actions [84,104,105]. Climate change, as reported by the "Intergovernmental Panel on Climate Change (IPCC), " is a change in the climatic process which is attributed directly or indirectly to the activities of humans, that alters the structure and/or composition of the universal atmosphere and which is in accumulation to the natural variability of the climate observed over the comparable duration of time [48,49].…”

Section: Climate Changementioning

confidence: 99%

The influence of climate change on food innovation technology: review on topical developments and legal framework

Ukhurebor

Aidonojie

2021

Agric & Food Secur

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The influence of climate change on agriculture, especially as it relates to the production of food, changes with reverence to duration and space, of which most of these influences are diverse and remarkably uncertain. Undoubtedly, the application of food innovation technology (FIT) in the agricultural processes is an important response for operative and objective adaptation and mitigation of climate change. Consequently, there is a need to urgently re-evaluate the procedures for FIT so as to address the diversities and uncertainties ensuing from these influences of climate change on agriculture with the aim of improving the production of food. Therefore, the application of climate-smart agricultural (CSA) activities with resilience in agricultural events as well as more aids in the application of resources for both in the adaptation and mitigation of climate change by means of FIT will be of great assistance in this regard. Hence, this study presents a facile review of some of the topical developments in the production of food with reverence to the influence of climate change on FIT. Some legal frame-work on climate change with respect to FIT are also been discussed.

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Effect of hexavalent chromium on the environment and removal techniques: A review

Cited by 230 publications

References 259 publications

Melatonin Attenuates Chromium (VI)-Induced Spermatogonial Stem Cell/Progenitor Mitophagy by Restoration of METTL3-Mediated RNA N6-Methyladenosine Modification

Melatonin Attenuates Chromium (VI)-Induced Spermatogonial Stem Cell/Progenitor Mitophagy by Restoration of METTL3-Mediated RNA N6-Methyladenosine Modification

Thiomers of Chitosan and Cellulose: Effective Biosorbents for Detection, Removal and Recovery of Metal Ions from Aqueous Medium

The influence of climate change on food innovation technology: review on topical developments and legal framework

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