Chronic Kidney Disorder: Are You Missing the Early Warning Signs?

Kidney damage often progresses silently, long before the actual signs appear. 

Chronic kidney disease accounts for a gradual decline in kidney function until it becomes advanced. The progression begins with subtle changes in urination patterns, persistent fatigue, swelling, blood pressure fluctuations, or unexplained changes. The recognition of such signs at an early stage can potentially aid in appropriate management. However, one must understand that CKD treatment isn’t just about managing symptoms. This is a progressive condition that involves inflammation, oxidative stress, vascular changes, and fibrosis that slow the kidney’s ability to filter waste and maintain fluid and electrolyte balance.  

This raises an important research question: Can regenerative approaches possibly target kidney injury at the cellular level? Stem cell treatments for chronic kidney disease are being explored for immunomodulation, reducing inflammation, and boosting the body’s natural repair mechanism. Although the research and clinical application are still evolving, they are opening up new avenues in regenerative nephrology. This article explores detailed aspects of Chronic Kidney Disorder (CKD) development and available treatment approaches, including emerging regenerative approaches. 

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What Happens Inside the Kidney in Chronic Kidney Disorder (CKD)?

Kidney is the vital organ that performs crucial jobs, including waste removal and elimination of excess water, generation of red blood cells (RBCs), maintaining tissue homeostasis and mineral balance, maintaining blood pressure, and maintaining bone health. The progressive damage in the nephrons compromises the filtration capacity of the kidney. Gradual introduction of inflammation, oxidative stress, and fibrosis leads to persistent injury that alters the kidney microenvironment. 

Development of chronic kidney disease possibly can lead to complete kidney failure. Currently, there is no complete cure for the disease. Yet, CKD treatment in India and globally intends to delay disease progression, manage symptoms efficiently, and improve patients’ quality of life. 

CKD progression is determined based on glomerular filtration rate (GFR). The critical 5 stages of CKD progression include:

Stage 1: GFR ml/min is 90 or higher. The kidney works well but shows mild kidney damage

Stage 2: GFR remains between 60 and 89 ml/min. The kidney still works well, but shows more signs of kidney damage

Stage 3a: GFR rate remains between 45 and 59 ml/min. Kidney function is compromised; the damage is mild to moderate

Stage 3b: The GFR rate declines to 30 and 44 ml/min. The moderate damage in the kidney makes functioning difficult

Stage 4: GFR rate further declines to 15 and 29 ml/min. Kidney function is poor and severely damaged. 

Stage 5: GFR declines to less than 15 ml/min. Kidney function almost stops. This is end-stage kidney disease. The patient requires regular dialysis and kidney transplantation

What are the Early Warning Signs of Chronic Kidney Disorder (CKD)?

Chronic Kidney Disease Signs Involve:

• Frequent need to urinate
• Fatigue, low energy, weakness, or breathlessness
• Sudden appetite loss 
• Change in blood pressure, swelling in feet, hands, and ankles
• Change in skin, itchy and dry skin
• Nausea, vomiting, numbness, trouble sleeping

What are the Conventional Chronic Kidney Disorder (CKD) Treatment Options?

The cure of Chronic Kidney Disease Treatment in India does not promise a certain cure. The focus is to preserve kidney function and combat symptoms. The conventional CKD treatment includes:

Medication

• Introduction of angiotensin-converting enzyme (ACE) inhibitors and angiotensin receptor blockers (ARBs). They lower blood pressure
• Phosphate eliminators to eliminate phosphate
• Diuretics to help eliminate extra fluid
• Erythropoietin to build up the RBCs in case of anemic patients
• Vit D and calcitriol for preventing bone loss 

Management of Co-Morbid Conditions

• Management of metabolic disorders like diabetes
• Managing hypertension and body weight
• Avoid introducing painkillers or other medication that increases pressure on the kidney
• Dietary intervention for supporting kidney function. Limit protein intake, salt, and potassium

Dialysis

• Removes waste products from the body artificially
• Hemodialysis involves circulating blood with a machine to remove waste products, excessive salt, and excess water
• Peritoneal dialysis involves placing a solution in the abdomen with the help of a catheter. The solution absorbs waste and is removed

Kidney Transplantation

• Based on donor availability, kidney transplantation is recommended
• The donor comes from either a living or deceased donor

Regenerative Approach

• Clinicians are introducing stem cell therapy as a supportive approach
• Although stem cell therapy is still in the early stage of development, a combination of stem cell therapy with the conventional approach has reported improved outcomes
• Future studies focus on launching large-scale, well-structured clinical trials. This is crucial to establish the long-term safety and efficacy of the approach

What is the Scientific Rationale for Stem Cell Therapy? 

Stem cell treatment for chronic kidney disease involves a regenerative approach. Researchers are widely exploring the potential of mesenchymal stem cells (MSCs). The cells have potential regenerative capacity and send out paracrine signalling. They modulate mechanisms at the cellular level, including combating oxidative stress, boosting repair mechanisms, reducing inflammation, and creating a supportive microenvironment. 

The Key Mechanisms of Stem Cells Include:

• Regeneration and Repair: Some MSCs potentially dedifferentiate into specific cell types. Certain cells, including renal tubular cells, podocytes, etc., aid in regeneration of the damaged nephrons. They potentially release various growth factors and cytokines that boost the body’s natural healing mechanism
• Anti-inflammation and Immunomodulation: MSCs secrete various bioactive molecules, including anti-inflammatory cytokines that reduce inflammation. Low-grade inflammation is one of the major underlying factors in kidney disease progression. They modulate the immune response that calms immune-mediated kidney damage. This creates a supportive microenvironment.
• Paracrine Effect: MSCs release various cytokines and growth factors that promote tissue repair, regulate fibrotic tissue disposition, and improve kidney function. They release various growth factors (VEGFs, FGFs) that promote tiny blood vessel formation (angiogenesis). This enables adequate supply of blood, nutrients, and oxygen at the damaged tissue site [1]

*NOTE: Currently, Stem Cell Therapy for CKD in India is still evolving. Preclinical and early clinical trial evidence has reported positive trends in terms of safety and tolerance. In the future, well-structured clinical trials are required to establish long-term efficacy and safety of introducing stem cells for chronic diseases. 

Clinical Application and Evidences

• The early clinical trials have reported a positive trend in improving kidney function
• Reduced low-grade chronic inflammation
• Stabilization of renal function and reduced fibrosis [2]

*NOTE: The success of the stem cell treatment for chronic kidney disease depends on various factors including stem cell type, quality, source, isolation procedure, administration, and individual factors. Advancells, India, is a leading manufacturer and supplier of clinical-grade stem cells for various chronic health conditions. The cell comes with a Certificate of Authentication (CoA).

What Should you Know About Stem Cell Treatment? 

• Stem cell treatment for CKD is emerging. It must not be considered as a standalone treatment
• The outcome varies among patients. CKD treatment in India and globally depends on the kidney disease stage and the patient’s overall health condition
• One opting for stem cell therapy must enquire about evidence-based information, treatment protocol, and set clear expectations.
• Various clinicians are implying stem cell treatment for chronic kidney disease with conventional treatment as a supportive therapeutic option.

Conclusion

Chronic Kidney Disorder is a progressive condition that does not have any cure. Currently, the treatment regimen focuses on slowing down disease progression and managing symptoms. Stem Cell Therapy for CKD in India is rapidly emerging. In the future, researchers must focus on developing long-term clinical trials to establish long-term safety and efficacy.

References

1. Chen F, Chen N, Xia C, Wang H, Shao L, Zhou C, Wang J. Mesenchymal stem cell therapy in kidney diseases: potential and challenges. Cell transplantation. 2023 Apr;32:09636897231164251. 
2. Wang Y, Luo P, Wuren T. Narrative review of mesenchymal stem cell therapy in renal diseases: mechanisms, clinical applications, and future directions. Stem Cells International. 2024;2024(1):8658246. 

FAQ’s

Q- Can chronic kidney disease progress without noticeable symptoms?

Yes, early chronic kidney disease (CKD) potentially displays nonspecific symptoms. The disease progresses gradually. Thus, noticing the early signs is crucial, and kidney-function testing is important.

Q- Why are stem cells investigated for CKD?

Researchers explore stem cells’ ability to secrete various growth factors and cytokines that can influence inflammation, fibrosis, and tissue-repair pathways involved in kidney injury.

Q- Is Stem Cell Therapy for CKD an established treatment?

Stem-cell-based approaches for CKD remain an area of clinical research and are not a replacement for established nephrology care.

Q- What should patients consider when exploring CKD treatment in India?

The underlying cause and stage of CKD, clinical evidence, treatment protocol, regulatory considerations, and appropriate medical follow-up should all be considered.