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Author Tian, Xin ♦ Zhu, Motao ♦ Du, Libo ♦ Wang, Jing ♦ Fan, Zhenlin ♦ Liu, Jun ♦ Zhao, Yuliang ♦ Nie, Guangjun
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Wiley-VCH
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Biochemistry ♦ Natural history of organisms ♦ Technology ♦ Medicine & health ♦ Human anatomy, cytology, histology ♦ Human physiology ♦ Pharmacology and therapeutics ♦ Diseases ♦ Gynecology, obstetrics, pediatrics & geriatrics ♦ Agriculture & related technologies ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Embryonic Structures ♦ Anatomy ♦ Eukaryota ♦ Organisms ♦ Female Urogenital Diseases and Pregnancy Complications ♦ Diseases ♦ Inorganic Chemicals ♦ Chemicals and Drugs ♦ Diagnosis ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Reproductive and Urinary Physiological Phenomena ♦ Biological Sciences ♦ Technology, Industry, and Agriculture ♦ Technology and Food and Beverages
Subject Keyword Discipline Nanotechnology ♦ Endometritis ♦ Metabolism ♦ Gold ♦ Chemistry ♦ Maternal-fetal Exchange ♦ Metal Nanoparticles ♦ Pregnancy Complications ♦ Animals ♦ Complications ♦ Physiopathology ♦ Female ♦ Mice ♦ Microscopy, Electron, Transmission ♦ Placenta ♦ Pregnancy ♦ Journal Article ♦ Research Support, Non-u.s. Gov't
Abstract The materno-fetal transfer of nanoparticles is a critical issue in designing theranoustic nanoparticles for in vivo applications during pregnancy. Recent studies have reported that certain nanoparticles can cross the placental barrier in healthy pregnant animals depending on the size and surface modification of the nanoparticles and the developmental stages of the fetuses. However, materno-fetal transfer under pathological pregnant conditions has not been examined so far. Here, it is shown that intrauterine inflammation can enhance the materno-fetal transfer of nanoparticles in the late gestation stage of murine pregnancy in a size-dependent manner. Three different-sized gold nanoparticles (Au NPs) with diameters of 3 (Au3), 13 (Au13) and 32 (Au32) nm are applied. The accumulation of Au3 and Au13 nanoparticles in the fetuses is significantly increased in intrauterine inflammatory mice compared with healthy control mice: the concentration of Au3 is much higher than Au13 in fetal tissues of intrauterine inflammatory mice. In contrast, Au32 nanoparticles cannot cross the placental barrier either in healthy or in intrauterine inflammatory mice. The possible underlying mechanism of the increased materno-fetal transfer of small-sized nanoparticles on pathological conditions is inferred to be the structural and functional abnormalities of the placenta under intrauterine inflammation. The size of the nanoparticles is one of the critical factors which determines the extent of fetal exposure to nanoparticles in murine pregnancy under inflammatory conditions.
Description Country affiliation: China
Author Affiliation: Tian X ( Chinese Academy of Sciences Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China Beijing 100190, China.)
ISSN 16136810
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-07-22
Publisher Place Germany
e-ISSN 16136829
Journal Small
Volume Number 9
Issue Number 14

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Source: WHO-Global Index Medicus