Decline is not inevitable.
A daily, evidence-graded view of everything moving in kidney research : the drugs that slow decline, the science of regeneration, and the mind-body work.
A new drug shows promise for a rare immune disease that attacks the kidneys, but more proof is needed
Today’s research focused on hospital-based and lab studies, not everyday kidney protection strategies. One real-world study looked at avacopan for a rare immune disease affecting the kidneys, while others explored causes of sudden injury or post-transplant issues. Most findings are preliminary—linked to outcomes but not proven to cause them—and none change current treatment advice yet.
Effect of renal denervation in chronic kidney disease: a systematic review, time-stratified meta-analysis and meta-regression of blood pressure and renal outcomes
This is a review that pools results from many earlier studies of renal denervation in people with kidney disease. Renal denervation is a procedure that burns the nerves in the arteries feeding the kidneys, to lower blood pressure. The authors combined the studies, sorted the results by how long people were followed, and looked at both blood pressure and kidney outcomes. The actual numbers were not included in what was supplied here, so the size of any benefit cannot be stated.
How does steroid withdrawal compare with steroid maintenance after kidney transplant in adults?
This is a Cochrane evidence summary, pooling randomized trials in adults who have had a kidney transplant. It compares stopping steroid anti-rejection drugs with staying on them long term. Steroids lower the chance of the body rejecting the new kidney, but they also cause weight gain, diabetes, and weaker bones, so the trade-off is real. The record here carries no abstract, so the size of the benefit and the size of the harm are not shown; read the full summary before acting on it.
XIGDUO XR
XIGDUO XR combines two diabetes drugs—dapagliflozin and metformin—and is approved for adults and children 10+ with type 2 diabetes. Dapagliflozin, one part of this combo, has been shown in large trials to slow kidney filtering rate decline by about 40%, cut the risk of needing dialysis or a transplant, and lower the chance of dying from heart problems. This approval means people with type 2 diabetes and kidney disease now have a proven option to protect their kidneys while managing blood sugar.
Dose-Response Effects of Different Exercise Modalities on Blood Pressure Control in Patients with Chronic Kidney Disease: A Systematic Review and Network Meta-Analysis.
This pooled analysis combined many exercise trials in people with chronic kidney disease to ask how much exercise lowers blood pressure. It compared different kinds of exercise and estimated the weekly dose from how long, how often, and how hard people trained. Blood pressure was measured as both the top number and the bottom number. The abstract does not report the size of the drop or which exercise type won, so the practical dose advice has to wait for the full paper.
Pediatric Kidney Transplantation: A Systematic Review.
This systematic review analyzed many studies on kidney transplants in children and found that while transplants give better survival and quality of life than dialysis, long-term graft failure remains common due to immune rejection and surgical factors. The review included over 10,000 children across multiple countries.
Early Sodium-Glucose Cotransporter-2 Inhibitor Use After Acute Kidney Injury in Type 2 Diabetes.
In 12,456 adults with type 2 diabetes who had severe acute kidney injury requiring dialysis, those who started SGLT-2 inhibitors within 30 days after leaving the hospital had a lower risk of kidney failure or death over about two years, compared with those who started between 31 and 90 days.
Effects of Progressive Inspiratory Muscle Training on Lung Volume and Respiratory Strength in Patients With Pre-Dialysis Chronic Kidney Disease.
A randomized trial tested training the muscles you breathe with in people with stage 3 to 5 kidney disease who are not on dialysis. One group trained against rising resistance, up to half of their maximum breathing-in strength; the other group was the comparison. Kidney disease can weaken these muscles even before dialysis starts, and this trial measured lung volume and breathing strength. The published abstract does not give the number of people, the length of training, or the size of the benefit, so how much it helped is not yet clear from this record.
Real-world long-term outcomes and safety of avacopan for antineutrophil cytoplasmic antibody-associated vasculitis with advanced renal dysfunction: a multicenter cohort study (4U-AAV Study)
Avacopan is a drug for ANCA vasculitis, a disease where the immune system attacks small blood vessels, including those in the kidney. This study followed people who took it in normal care, not in a trial, and focused on those whose kidneys were already badly damaged. It tracked how they did over the long term and what side effects came up. Because doctors chose who got the drug, this shows a link between the drug and the outcomes, not proof that the drug caused them.
Renal Outcomes in Survivors of Neonatal and Pediatric Renal Vein Thrombosis
Researchers used large health insurance records to follow children who had a blood clot in a kidney vein, including older children as well as newborns. They asked how many later developed kidney damage, and whether blood thinners lowered that risk. This is an observational study built from records, so it can show a link but cannot prove cause. It is also a preprint, meaning other scientists have not checked it yet, and the posted text cuts off before the numbers.
Complicações Urológicas Precoces Após Transplante Renal
This looks at urinary tract complications in the first weeks after a kidney transplant, things like leaks or blockages where the new kidney connects to the bladder. It reviews what happened to patients rather than testing a treatment, so it describes how often these problems show up and what they look like. It shows links, not causes. It is a short nursing article, so the detail is limited.
Integrating the Urea-to-Creatinine Ratio with Clinical Variables to Improve Etiological Discrimination in Acute Kidney Injury
Sudden kidney injury has many causes, and telling them apart changes the treatment. This study combined a common blood test ratio, urea to creatinine, with other patient details to sort out the likely cause. It is a diagnosis study in records, so it shows the pattern is linked to the cause, not that it works better in practice. It is about spotting the cause of sudden injury, not about slowing long-term kidney disease.
Shrunken pore syndrome increased the risk of acute kidney injury after cardiac surgery: a cohort study
Shrunken pore syndrome is a pattern in blood tests suggesting the kidney's tiny filters are letting through less than they should. This study followed people having heart surgery and found those with the pattern beforehand were more likely to get sudden kidney injury afterwards. It is an observational study, so it shows a link and a possible warning sign, not proof that the pattern causes the injury. This is a data posting rather than a peer-reviewed journal article.
THE ROLE OF ENDOTHELIAL DYSFUNCTION IN THE DEVELOPMENT OF RENAL DYSFUNCTION IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE
This looks at how damage to the lining of blood vessels, called endothelial dysfunction, may tie in with kidney trouble in people with long-term lung disease (COPD). It reports a link between the two, not proof that one causes the other. It is posted on a repository rather than published in a peer-reviewed journal, so it has not been checked by outside experts.
Proteinuria and Kidney Function Trajectories in Patients with Advanced CKD: Insights from CRIC and KNOW-CKD Studies.
In 2,727 adults with advanced kidney disease (filtering rate between 15 and 45), higher protein in the urine was linked to faster decline toward kidney failure, but because this is an observational study, it shows a link — not proof that protein causes faster decline.
Renal outcomes following fundus fluorescein angiography in patients with diabetic nephropathy: Incidence, risk factors and three-month kidney function changes.
In 307 people with diabetic kidney disease who had an eye test using contrast dye, 18% developed sudden kidney injury within two days — higher blood sugar and lower starting kidney filtering rate were linked to this risk, but the study cannot prove the dye caused it.
Comparative Effectiveness of Combination Therapy in Patients with Chronic Kidney Disease and Diabetes mellitus Type 2 using Real World Data.
Researchers used a large US database of real patient records to compare drug combinations in people who have both kidney disease and type 2 diabetes. Everyone was on the standard kidney-protecting blood pressure drugs (called RAAS inhibitors). The study looked at whether adding newer diabetes drugs, SGLT2 inhibitors or GLP-1 drugs, or both, worked better than the standard drugs alone. This is an observational study built from records, not a randomized trial, so it shows a link and cannot prove the combinations caused the better outcomes; sicker or healthier patients may have been given different drugs to begin with.
Predictors of Worsening Renal Function in Patients Hospitalized with Acute Heart Failure
This study looked at what predicts kidney function getting worse in people admitted to hospital with sudden heart failure. It is a look-back at patient records, so it can show a link, not prove a cause. This record is a Zenodo deposit with no abstract, so the risk factors found and the number of patients are not listed here. Work like this is used to flag who needs closer kidney monitoring during a heart failure stay.
Urinary Uromodulin for Distinguishing Between Glomerulonephritis, Diabetic Kidney Disease, and Nephrosclerosis in a Biopsy-Proven Cohort
Uromodulin is a protein the kidney makes and releases into urine. Researchers tested whether its level in urine can tell apart three causes of kidney damage: inflammation of the kidney filters, damage from diabetes, and damage from high blood pressure. Everyone in the study had a kidney biopsy, so the true cause was already known, which makes the comparison a fair one. This is an observational study: it shows a link between the urine test and the diagnosis, not proof that the test can replace a biopsy.
MPO-ANCA–associated glomerulonephritis with immune complex deposition and membranous features in a patient with Sjögren’s syndrome: a case report
This is a report on a single patient with Sjogren's syndrome, a disease where the immune system attacks the glands that make tears and saliva. The patient developed inflammation of the kidney filters with two patterns at the same time, one driven by an antibody called MPO-ANCA and one from immune deposits in the filter wall. One patient cannot show how often this happens or which treatment works best. It is useful mainly as a warning that these two kidney patterns can appear together.
Longitudinal evaluation of glomerular filtration rate across adolescence and early adulthood in youth with type 1 diabetes: associations with clinical and social risk factors
Researchers followed young people with type 1 diabetes from their teenage years into early adulthood and tracked their kidney filtering rate (eGFR) over time. They checked which medical factors and which social factors, such as income and access to care, went along with faster loss of kidney function. Because this only watches people rather than testing a treatment, it shows links, not causes. The value is in spotting who may need kidney checks earlier than the usual schedule.