Oxygen Therapy in Diabetic Kidney Disease

"1. To evaluate the effect of oxygen therapy (hyperbaric oxygen and oxygen by non- rebreather mask) and early morning air on proteinuria in patients with diabetic kidney disease.~2. To evaluate the effect of oxygen therapy (hyperbaric oxygen and oxygen by non- rebreather mask) and early morning air on glycated haemoglobin in patients with diabetic kidney disease.~3. Comparing the effects of oxygen therapy (hyperbaric oxygen and oxygen by non- rebreather mask), early morning air exposure, and standard care on kidney function"