Some inferences from in vivo experiments with metal and metal oxide nanoparticles: the pulmonary phagocytosis response, subchronic systemic toxicity and genotoxicity, regulatory proposals, searching for bioprotectors (a self-overview) / Katsnelson Boris A.,Privalova Larisa I.,Sutunkova Marina P.,Gurvich Vladimir B.,Loginova Nadezhda V.,Minigalieva Ilzira A.,Kireyeva Ekaterina P.,Shur Vladimir Y.,Shishkina Ekaterina V.,Beikin Ya B.,Makeyev Oleg H.,Valamina Irene E. // INTERNATIONAL JOURNAL OF NAN

ISSN/EISSN:

1178-2013 / нет данных

Type:

Review

Abstract:

The purpose of this paper is to overview and summarize previously published results of our experiments on white rats exposed to either a single intratracheal instillation or repeated intraperitoneal injections of silver, gold, iron oxide, copper oxide, nickel oxide, and manganese oxide nanoparticles (NPs) in stable water suspensions without any chemical additives. Based on these results and some corroborating data of other researchers we maintain that these NPs are much more noxious on both cellular and systemic levels as compared with their 1 mu m or even submicron counterparts. However, within the nanometer range the dependence of systemic toxicity on particle size is intricate and non-unique due to complex and often contra-directional relationships between the intrinsic biological aggressiveness of the specific NPs, on the one hand, and complex mechanisms that control their biokinetics, on the other. Our data testify to the high activity of the pulmonary phagocytosis of NPs deposited in airways. This fact suggests that safe levels of exposure to airborne NPs are possible in principle. However, there are no reliable foundations for establishing different permissible exposure levels for particles of different size within the nanometric range. For workroom air, such permissible exposure levels of metallic NP can be proposed at this stage, even if tentatively, based on a sufficiently conservative approach of decreasing approximately tenfold the exposure limits officially established for respective micro-scale industrial aerosols. It was shown that against the background of adequately composed combinations of some bioactive agents (comprising pectin, multivitamin-multimineral preparations, some amino acids, and omega-3 polyunsaturated fatty acid) the systemic toxicity and even genotoxicity of metallic NPs could be markedly attenuated. Therefore we believe that, along with decreasing NP-exposures, enhancing organisms' resistance to their adverse action with the help of such bioprotectors can prove an efficient auxiliary tool of health risk management in occupations connected with them.

Author keywords:

nanoparticles; metals; metal oxides; toxicity CHRONIC INHALATION EXPOSURE; SILVER NANOPARTICLES; GOLD NANOPARTICLES; INTRATRACHEAL INSTILLATION; COPPER-OXIDE; CUO NANOPARTICLES; OXIDATIVE STRESS; QUARTZ DUST; MULTICOMPARTMENTAL MODEL; DIFFERENT CYTOTOXICITY

DOI:

10.2147/IJN.S80843

Web of Science ID:

ISI:000352949200001

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	DOVE MEDICAL PRESS LTD
Address	PO BOX 300-008, ALBANY, AUCKLAND 0752, NEW ZEALAND
Language	English
Keywords-Plus	CHRONIC INHALATION EXPOSURE; SILVER NANOPARTICLES; GOLD NANOPARTICLES; INTRATRACHEAL INSTILLATION; COPPER-OXIDE; CUO NANOPARTICLES; OXIDATIVE STRESS; QUARTZ DUST; MULTICOMPARTMENTAL MODEL; DIFFERENT CYTOTOXICITY
Research-Areas	Science \& Technology - Other Topics; Pharmacology \& Pharmacy
Web-of-Science-Categories	Nanoscience \& Nanotechnology; Pharmacology \& Pharmacy
Author-Email	bkaznelson@etel.ru
ResearcherID-Numbers	Makeyev, Oleg/G-5511-2017 Shishkina, Ekaterina/I-1829-2017 Shur, Vladimir/J-9078-2015
ORCID-Numbers	Shishkina, Ekaterina/0000-0002-2574-7472
Number-of-Cited-References	110
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	31
Journal-ISO	Int. J. Nanomed.
Doc-Delivery-Number	CG0IE