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Chronic Kidney Disease: The Hidden Threat

Discover the link between gut health and kidney function.

Zaher Ahmed, Md. Sajjadul Karim

― 5 min read


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Table of Contents

Chronic Kidney Disease, or CKD, is a serious condition that affects how well your kidneys work. Kidneys are like filters for your blood, removing waste and extra fluid. When CKD sets in, these filters don’t work as well, leading to a buildup of waste in the body. This can cause many health problems and can even be life-threatening. About 850 million people around the world have CKD, making it a major health issue in today's world.

What Causes CKD?

CKD can be caused by several factors, but the most common ones are linked to metabolic syndrome. This includes conditions such as diabetes, high blood pressure, and obesity. Think of these as red flags for kidney health. If your blood pressure is high or your blood sugar levels are out of control, you might be at higher risk for CKD.

How is CKD Measured?

Doctors measure kidney function using a test called the estimated glomerular filtration rate (eGFR). This test looks at the amount of creatinine in your blood. For young adults, a normal eGFR is typically between 75-100 ml/min. But as we age, this number tends to drop. If your eGFR is less than 60 ml/min for three months or more, you might have CKD.

Stages of CKD

CKD is categorized into five stages based on kidney function and health. The final stage, called End-Stage Kidney Disease (ESKD), occurs when the eGFR drops below 15 ml/min. At this point, people often need kidney replacement therapy (KRT), which includes options like dialysis or a kidney transplant. Dialysis helps take over the work of the kidneys, removing waste and excess fluid from the blood.

Dialysis: The Lifesaver

Dialysis is like a backup plan for your kidneys. It comes in two main types: hemodialysis and peritoneal dialysis. Hemodialysis uses a machine to filter your blood while peritoneal dialysis uses the lining of your abdomen. Both methods help people with CKD live more normal lives, but they can be costly and not always available, especially in less developed regions.

Gut Microbiota: The Tiny Helpers

Our bodies are home to trillions of microorganisms, known as gut microbiota, living mostly in our intestines. They help with digestion, keep our immune system strong, and prevent harmful bacteria from taking over. When these tiny helpers are in balance, they keep us healthy. But when they become imbalanced—a condition known as dysbiosis—it can lead to various health issues, including aggravating CKD.

The Link Between Gut Health and CKD

Recent studies have shown that there’s a connection between our gut health and kidney health, often called the “gut-kidney axis.” When gut bacteria are out of balance, they can produce harmful substances known as Uremic Toxins. These toxins can enter our bloodstream and cause further harm to the kidneys, creating a vicious cycle of health problems.

Probiotics: The Good Guys

Probiotics are live microorganisms that can provide health benefits, especially for our gut. You can find them in foods like yogurt, kefir, and pickles. They help keep the gut balanced and may even help with kidney function. Some common probiotic strains include Lactobacillus and Bifidobacterium. These are the good guys we want in our system!

The Role of Probiotics and Synbiotics in CKD

Probiotics and their cousins, synbiotics (which are a mix of probiotics and prebiotics), are being studied for their potential benefits in CKD patients. Some small studies suggest that taking probiotics might help reduce symptoms related to kidney failure and even lower the levels of harmful uremic toxins in the blood.

How Do Probiotics Work?

When you take probiotics, they can help restore balance in your gut. In the case of CKD, this balance may reduce the production of harmful toxins. Some findings show that probiotics might even help improve gastrointestinal symptoms like nausea, vomiting, and bloating, which are common issues for dialysis patients.

What Research Says

Clinical trials are being conducted to understand how effective probiotics can be for people with CKD. Some studies have shown that probiotics can help improve gut health and reduce levels of harmful toxins in the blood. Participants have reported fewer stomach issues, better kidney function, and overall improvements in their quality of life.

Challenges and Limitations

While the idea of probiotics helping with CKD is exciting, there are challenges. Many studies have small sample sizes or different methods of administration, which makes it tricky to compare results. Also, the formulations of probiotics can vary, affecting how well they work. More research is needed to fully understand how and when to best use probiotics for CKD patients.

Conclusion

Chronic Kidney Disease is a serious condition that requires careful management. Thankfully, researchers are exploring various ways to help improve the lives of those with CKD, including the potential benefits of probiotics. While it’s not a magic solution, adding probiotics to treatment may provide some relief and support kidney health. As always, it’s important to consult with a healthcare professional before making any changes to your diet or treatment plan. So, if you find yourself in the world of CKD, don’t forget to check out the tiny soldiers called probiotics; they might just lend a helping hand!

Original Source

Title: Role of Probiotics on Dialysis Patients in End-Stage Kidney Disease: A Systematic Review

Abstract: The prevalence of chronic kidney disease (CKD) has been increasing all over the world due to the high-risk factors of metabolic syndrome. But, unfortunately, the cost of dialysis and the scarcity of dialysis center and dialysate are making it more complex for the people in least developed countries. Probiotics are being studied as a potential treatment option for chronic kidney disease, especially in the dialysis patients. The aim of this review is to investigate the effects of probiotics administration in dialysis patients in end-stage kidney disease. A systemic search was conducted on MEDLINE database from 2002 to 2023 using key terms related to dialysis, end-stage kidney disease and probiotics. Fifteen studies met eligibility criteria, among which thirteen were on hemodialysis patients and others on peritoneal dialysis patients. The results of the studies revealed that probiotics have some significant effect on gut dysbiosis, gastrointestinal symptoms, uremic toxins, inflammation and overall quality of life of dialytic patients. Studies showed that administration of probiotics inhibit the growth of pathogenic bacteria as well as production of protein-bound uremic toxins (i.e. indoxyl sulfate and p-cresol sulfate) which can not be fully excreted by dialysis. The level of serum TNF-, IL-5 and IL-6 were significantly decreased in peritoneal dialysis patients. However, further investigations must be carried out with larger sample size with larger study duration and wit different probiotics or synbiotics preparations to obtained more specific explanations of the effects and mechanisms of probiotics to counteract the disease progression on dialysis patients in end-stage kidney disease.

Authors: Zaher Ahmed, Md. Sajjadul Karim

Last Update: 2024-12-24 00:00:00

Language: English

Source URL: https://www.medrxiv.org/content/10.1101/2024.12.20.24319427

Source PDF: https://www.medrxiv.org/content/10.1101/2024.12.20.24319427.full.pdf

Licence: https://creativecommons.org/licenses/by-nc/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to medrxiv for use of its open access interoperability.

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