John T. Walker Biography Publications JoVE Articles John T. Walker has not added a biography. If you are John T. Walker and would like to personalize this page please email our Author Liaison for assistance. Publications Combinatorial Transcription Factor Profiles Predict Mature and Functional Human Islet α and β Cells JCI Insight. Sep, 2021 | Pubmed ID: 34428183 The Human Islet: Mini-Organ With Mega-Impact Endocrine Reviews. Sep, 2021 | Pubmed ID: 33844836 Dapagliflozin Does Not Directly Affect Human α or β Cells Endocrinology. Aug, 2020 | Pubmed ID: 32428240 Integrated Human Pseudoislet System and Microfluidic Platform Demonstrate Differences in GPCR Signaling in Islet Cells JCI Insight. May, 2020 | Pubmed ID: 32352931 Tacrolimus- and Sirolimus-induced Human β Cell Dysfunction is Reversible and Preventable JCI Insight. Jan, 2020 | Pubmed ID: 31941840