دورية أكاديمية
Longitudinal long term follow up investigation on the carcinogenic impact of polyhexamethylene guanidine phosphate in rat models
| العنوان: | Longitudinal long term follow up investigation on the carcinogenic impact of polyhexamethylene guanidine phosphate in rat models |
|---|---|
| المؤلفون: | Sang Hoon Jeong, Hong Lee, Yoon Jeong Nam, Ja Young Kang, Hyejin Lee, Jin Young Choi, Yu-Seon Lee, Jaeyoung Kim, Yoon Hee Park, Su A. Park, Hangseok Choi, Eun-Kee Park, Yong-Wook Baek, Jungyun Lim, Suejin Kim, Cherry Kim, Ju-Han Lee |
| المصدر: | Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024) |
| بيانات النشر: | Nature Portfolio, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Rat model, Polyhexamethylene guanidine phosphate, Chest CT, Lung cancer, Lung fibrosis, Medicine, Science |
| الوصف: | Abstract Polyhexamethylene guanidine phosphate (PHMG-p) is a major component in humidifier disinfectants, which cause life-threatening lung injuries. However, to our knowledge, no published studies have investigated associations between PHMG-p dose and lung damage severity with long-term follow-up. Therefore, we evaluated longitudinal dose-dependent changes in lung injuries using repeated chest computed tomography (CT). Rats were exposed to low (0.2 mg/kg, n = 10), intermediate (1.0 mg/kg, n = 10), and high (5.0 mg/kg, n = 10) doses of PHMG-p. All rats underwent repeated CT scans after 10 and 40 weeks following the first exposure. All CT images were quantitatively analyzed using commercial software. Inflammation/fibrosis and tumor counts underwent histopathological evaluation. In both radiological and histopathologic results, the lung damage severity increased as the PHMG-p dose increased. Moreover, the number, size, and malignancy of the lung tumors increased as the dose increased. Bronchiolar–alveolar hyperplasia developed in all groups. During follow-up, there was intergroup variation in bronchiolar–alveolar hyperplasia progression, although bronchiolar–alveolar adenomas or carcinomas usually increase in size over time. Thirty-three carcinomas were detected in the high-dose group in two rats. Overall, lung damage from PHMG-p and the number and malignancy of lung tumors were shown to be dose-dependent in a rat model using repeated chest CT scans during a long-term follow-up. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-024-57605-x |
| URL الوصول: | https://doaj.org/article/bfe723b165e04ce68860e05e11e5d2ae |
| رقم الأكسشن: | edsdoj.bfe723b165e04ce68860e05e11e5d2ae |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20452322 |
|---|---|
| DOI: | 10.1038/s41598-024-57605-x |