Chapter 1: Hydrogen Sulfide and the Renal System -- Chapter 2: Hydrogen Sulfide for Cisplatin-Induced Acute Kidney Injury -- Chapter 3: Hydrogen Sulfide as a Therapeutic Alternative for Chronic Kidney Disease -- Chapter 4: Hydrogen Sulfide in Diabetic Kidney Disease -- Chapter 5: Hydrogen Sulfide for the Treatment of Hypertensive Nephropathy -- Chapter 6: Hydrogen Sulfide as a Potential Therapy for COVID-19-Associated Nephropathy -- Chapter 7: Hydrogen Sulfide as a Potential Novel Therapy to Prevent Renal Damage During Ureteral Obstruction -- Chapter 8: Hydrogen Sulfide Therapy as the Future of Renal Graft Preservation -- Chapter 9: Hydrogen Sulfide against Ischemia-Reperfusion Injury in Transplantation of Kidney and Other Transplantable Solid Organs -- Chapter 10: FDA-Approved Hydrogen Sulfide Donor Drug and its Clinical Applications in Nephrology.