Funding for this research was provided by:
This study was supported by the Ministry of Higher Education Egypt, the Japanese Society for the Promotion of Science, and the Ministry of Education, Culture, Sports, Science and Technology, Japan (18H02337)
Received: 17 December 2019
Accepted: 11 February 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: The experiments described in this study were conducted according to the rules of care description and animal use in research published by Obihiro University of Agriculture and Veterinary Medicine, Japan. The protocol was approved by the Animal Experimentation Ethics committee at Obihiro University of Agriculture and Veterinary Medicine (accession number of the animal experiments: 28–111-2/28–110). These regulations were established by Fundamental Guidelines for Proper Conduct of Animal Experiment and Related Activities in Academic Research Institutions, the Ministry of Education, Culture, Sports and Technology (MEXT), Japan.
: Not applicable.
: The authors declare that they have no competing interests.