Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring
Titanium dioxide nanoparticles (TiO2 NPs) are amongst the most frequently used nanomaterial in everyday consumer products, and their widespread applications have raised concerns of the consequent deleterious effects on human health, particularly to vulnerable populations, such as lactating females r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651320315980 |
| _version_ | 1819276669496590336 |
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| author | Liyang Yao Ling Chen Bolu Chen Yizhou Tang Yu Zhao Shanji Liu Hengyi Xu |
| author_facet | Liyang Yao Ling Chen Bolu Chen Yizhou Tang Yu Zhao Shanji Liu Hengyi Xu |
| author_sort | Liyang Yao |
| collection | DOAJ |
| description | Titanium dioxide nanoparticles (TiO2 NPs) are amongst the most frequently used nanomaterial in everyday consumer products, and their widespread applications have raised concerns of the consequent deleterious effects on human health, particularly to vulnerable populations, such as lactating females remains elusive. Therefore, this study was initiated to investigate the detrimental effects and toxic mechanisms induced by TiO2 NPs in maternal dams and offspring during the lactation period. Dams were randomly divided into three groups. The water (Control; Group I) and TiO2 NPs (100 mg/kg; Group II) were orally administered from postnatal day 1–20, respectively. The results indicated that TiO2 NPs could cause toxicity in the dams, such as pathological damages to mammary gland tissues. The excessive accumulation of TiO2 NPs could induce oxidative stress in the mammary gland, leading to the dysfunctional blood-milk barrier; besides, TiO2 NPs could also be transferred to offspring via breastfeeding, causing abnormal development of infant. We further accessed the possible underlying molecular mechanism; for this, we orally administered TiO2 NPs with vitamin E (100 mg/kg; Group III). The results revealed that toxicity induced by TiO2 NPs was rescued. Collectively, this study presented the deleterious pathological effects of oral exposure to TiO2 NPs in the mammary gland tissues and blood-milk barrier via the production of reactive oxygen species (ROS) in dams and developmental concerns in offspring. However, the administration of VE could mitigate the toxic effects induced by the TiO2 NPs. |
| first_indexed | 2024-12-23T23:43:54Z |
| format | Article |
| id | doaj.art-3512d5857f2241ac85fe07d400a1fc63 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-23T23:43:54Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-3512d5857f2241ac85fe07d400a1fc632022-12-21T17:25:34ZengElsevierEcotoxicology and Environmental Safety0147-65132021-01-01208111762Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspringLiyang Yao0Ling Chen1Bolu Chen2Yizhou Tang3Yu Zhao4Shanji Liu5Hengyi Xu6State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaCorresponding author.; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, ChinaTitanium dioxide nanoparticles (TiO2 NPs) are amongst the most frequently used nanomaterial in everyday consumer products, and their widespread applications have raised concerns of the consequent deleterious effects on human health, particularly to vulnerable populations, such as lactating females remains elusive. Therefore, this study was initiated to investigate the detrimental effects and toxic mechanisms induced by TiO2 NPs in maternal dams and offspring during the lactation period. Dams were randomly divided into three groups. The water (Control; Group I) and TiO2 NPs (100 mg/kg; Group II) were orally administered from postnatal day 1–20, respectively. The results indicated that TiO2 NPs could cause toxicity in the dams, such as pathological damages to mammary gland tissues. The excessive accumulation of TiO2 NPs could induce oxidative stress in the mammary gland, leading to the dysfunctional blood-milk barrier; besides, TiO2 NPs could also be transferred to offspring via breastfeeding, causing abnormal development of infant. We further accessed the possible underlying molecular mechanism; for this, we orally administered TiO2 NPs with vitamin E (100 mg/kg; Group III). The results revealed that toxicity induced by TiO2 NPs was rescued. Collectively, this study presented the deleterious pathological effects of oral exposure to TiO2 NPs in the mammary gland tissues and blood-milk barrier via the production of reactive oxygen species (ROS) in dams and developmental concerns in offspring. However, the administration of VE could mitigate the toxic effects induced by the TiO2 NPs.http://www.sciencedirect.com/science/article/pii/S0147651320315980Titanium dioxide nanoparticlesOxidant stressBlood-milk barrierLactationVitamin E |
| spellingShingle | Liyang Yao Ling Chen Bolu Chen Yizhou Tang Yu Zhao Shanji Liu Hengyi Xu Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring Ecotoxicology and Environmental Safety Titanium dioxide nanoparticles Oxidant stress Blood-milk barrier Lactation Vitamin E |
| title | Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring |
| title_full | Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring |
| title_fullStr | Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring |
| title_full_unstemmed | Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring |
| title_short | Toxic effects of TiO2 NPs in the blood-milk barrier of the maternal dams and growth of offspring |
| title_sort | toxic effects of tio2 nps in the blood milk barrier of the maternal dams and growth of offspring |
| topic | Titanium dioxide nanoparticles Oxidant stress Blood-milk barrier Lactation Vitamin E |
| url | http://www.sciencedirect.com/science/article/pii/S0147651320315980 |
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