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Ex Vivo Intestinal Sacs to Assess Mucosal Permeability in Models of Gastrointestinal Disease
Published on: February 9, 2016
Intestinal mucosal permeability of children with cefaclor-associated serum sickness-like reactions
Zhen Zhang1, Yun Xiang, Baoxiang Wang
1Department of Laboratory Medicine, Wuhan Medical and Health Center for Women and Children, Tongji Medical College, Huazhong University of Science and Technology, 100 Xianggang Rd., Jiang An District, Wuhan, Hubei 430016, People's Republic of China.
Insights
Cefaclor may cause serum sickness-like reactions (SSLR) in children by increasing intestinal permeability. Measuring urinary lactulose/mannitol ratios and serum diamine oxidase levels can help predict or monitor SSLR in pediatric patients.
Area of Science:
- Pediatric Pharmacology
- Gastroenterology
- Immunology
Background:
- Serum sickness-like reaction (SSLR) is a known adverse effect of cefaclor in children, but its mechanism is not fully understood.
- Intestinal mucosal permeability is a potential factor influencing drug-induced hypersensitivity reactions.
Purpose of the Study:
- To investigate the association between intestinal mucosal permeability and cefaclor-associated SSLR in pediatric patients.
- To evaluate the utility of urinary lactulose/mannitol (L/M) ratios and serum diamine oxidase (DAO) levels in predicting or monitoring cefaclor-induced SSLR.
Main Methods:
- A study involving 82 pediatric patients treated with cefaclor and 30 healthy controls.
- Measurement of urinary L/M ratios and serum DAO levels on specific days after cefaclor administration.
- Patients were categorized into cefaclor-associated SSLR positive and negative groups.
Main Results:
- Children with cefaclor-associated SSLR showed a significant increase in urinary L/M ratios from day 7 to 13.
- Serum DAO levels were significantly elevated in the cefaclor SSLR positive group on days 9, 11, 13, and 15.
- No significant changes in L/M ratios or DAO levels were observed in the SSLR negative group compared to controls.
Conclusions:
- Cefaclor administration may induce SSLR in children by increasing intestinal mucosal permeability.
- Urinary L/M ratios and serum DAO levels can serve as potential biomarkers for observing or predicting cefaclor-associated SSLR.
- Physicians should exercise caution when prescribing cefaclor for pediatric patients due to the risk of SSLR.
Abstract:
Although the serum sickness-like reaction (SSLR) in children after the administration of cefaclor has long been recognized, the exact mechanism of cefaclor-associated SSLR remains unclear. This study aims to investigate the association between intestinal mucosal permeability and cefaclor-associated SSLR in children. A total of 82 pediatric patients with upper respiratory tract infection following the cefaclor therapy was divided into cefaclor-associated SSLR positive group and negative group based on the presence or absence of SSLR after taking cefaclor, and 30 healthy volunteers served as control group. Urinary lactulose/mannitol (L/M) ratios and serum diamine oxidase (DAO) levels were determined in all cases on days 7, 9, 11, 13, and 15 after oral administration of cefaclor. The children in the control group were given the same measurements after enrollment in this study. From days 7 to 13, the urinary L/M ratio of children with cefaclor SSLR gradually increased and reached to the highest level of 0.38 ± 0.14 on day 13. Compared with the cefaclor-associated SSLR negative group and control group, urinary L/M ratios increased significantly in the cefaclor SSLR positive group on days 7, 9, 11, 13, and 15 after taking cefaclor, and serum levels of DAO following the treatment of cefaclor increased significantly in children with cefaclor SSLR on days 9, 11, 13, and 15. No significant difference in urinary L/M ratios and serum levels of DAO between SSLR negative group and control group through the entire experiment was observed. In conclusion, administration of cefaclor may induce SSLR in children by increasing the intestinal mucosal permeability and/or affecting the integrity of the intestinal mucosa. Determinations of urinary L/M ratios and serum DAO levels may be helpful for observing or predicting the occurrence of SSLR after administration of cefaclor, which will encourage physicians to proceed with extreme caution when prescribing cefaclor for pediatric patients.
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