The first affiliated Hospital of Hainan Medical University 2 articles published in JoVE Immunology and Infection A Modified Surgical Technique for Kidney Transplantation in Mice Decheng Yin*1,2, Jian Fu*1,3, Rongjun Chen4, Nelli Shushakova5, Ida Allabauer1, Xin-Yi Wei1, Mario Schiffer6, Diana Dudziak7, Song Rong*5, André Hoerning*1 1Department of Pediatric and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 2Department of Pediatric Surgery, Chengdu Women’s and Children's Central Hospital, 3The Key Laboratory of Hainan Trauma and Disaster Rescue, The first affiliated Hospital of Hainan Medical University, 4Department of Department of Pediatric Kidney, Liver, and Metabolic Diseases, Hannover Medical School, 5Department of Nephrology, Hannover Medical School, 6Department of Nephrology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 7Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg This protocol presents a new surgical technique of mouse kidney transplantation focusing on a modified arterial anastomosis strategy. A vascular suture technique including a simple and safer ureter-bladder anastomosis method is also presented. These modifications shorten the operation time and improve the success rate of the mouse kidney transplantation procedure. Medicine Blood Circuit Reconstruction in an Abdominal Mouse Heart Transplantation Model Decheng Yin*1,2, Jian Fu*1,3, Ida Allabauer1, Oliver Witzke4, Song Rong5, André Hoerning1 1Department of Pediatric and Adolescent Medicine, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 2Department of Pediatric Surgery, Chengdu Women's and Children's Central Hospital, 3The Key Laboratory of Hainan Trauma and Disaster Rescue, The first affiliated Hospital of Hainan Medical University, 4Department of Infectious Diseases, West German Centre of Infectious Diseases, Universitätsmedizin Essen, University Duisburg-Essen, 5Department of Nephrology, Hannover Medical School A novel technique for blood circuit reconstruction in a heterotopic abdominal mouse heart transplantation model is demonstrated.