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Probiotics could attenuate renal function deterioration in CKD patients.
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Chronic kidney disease (CKD) is a global health issue that has a substantial impact on affected individuals. Chronic inflammation, which is widely seen in CKD including long-term dialysis patients, is associated with malnutrition, atherosclerosis and an increased mortality risk. Inflammatory markers such as C-reactive protein, IL-6, IL-18, and TNF-α, are elevated in dialysis patients and can predict cardiovascular event and all-cause mortality. Endotoxin is bacterial lipopolysaccharide, and makes up the outer membrane of Gram-negative bacteria. Endotoxin is also an important source and also a marker of inflammation in CKD.
The natural intestinal microbiota is altered in CKD patients as an increase in aerobic bacteria such as E. coli and a decrease in anaerobic bacteria such as Bifidobacterium. Dysbiosis might contribute to the chronic inflammatory state in dialysis patients through endotoxemia, induction of the pro-inflammatory cytokine, and production of uremic toxins through fermentation of protein in the large intestine. Probiotics containing Bifidobacterium species and Lactobacilli species could benefit the host by inhibiting the growth or epithelial invasion of pathogenic bacteria, enhancing the intestinal barrier function, and regulating the immune system.
Probiotics could suppress proinflammatory cytokines, such as TNF-α and IL-6 . In addition, probiotics could improve renal function parameters in uremic rats and significantly lower levels of blood urea nitrogen in stage 3 and 4 CKD patients. The aim of the present study is to evaluate:
Estimated glomerular filtration rate, stool microbiota, serum cytokines and endotoxin, and gastrointestinal symptoms of stage 3-5 patients are measured before and after intervention. The Wilcoxon signed-rank and Wilcoxon rank-sum tests were used to compare intra- and intergroup differences for continuous variables, as appropriate. A p value less than 0.05 was considered significant.
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Inclusion and exclusion criteria
Healthy volunteers:
The criteria for healthy volunteers were: no hypertension (Blood pressure<140/90mmHg), no diabetes (Glucose AC 70~100mg/dl), no hyperlipidemia (Cholesterol Total 130~200mg/dL、Triglyceride<150mg/dL), no urinary protein (-) and normal renal function (eGFR>90), after signing the consent form, the stool samples will be collected.
CKD patients:
Inclusion Criteria:
‧Stage 3-5 CKD patients, at least 20 years of age and regular follow-up for at least 6 months prior to enrollment.
Exclusion Criteria:
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148 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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