scholarly journals P157 Microbiome Analysis Reveals That Ralstonia is Responsible for Decreased Renal Function in Patients with Ulcerative Colitis

2021 ◽  
Vol 15 (Supplement_1) ◽  
pp. S236-S238
Author(s):  
J M Kim ◽  
J H Rim ◽  
D H Kim ◽  
H Y Kim ◽  
S K Choi ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Renal Function ◽  
Uric Acid ◽  
Gut Microbiota ◽  
Negative Correlation ◽  
Acid Level ◽  
Serum Uric Acid Level ◽  
The Other ◽  
Ralstonia Pickettii ◽  
Kidney Organoids

Abstract Background Inflammatory bowel diseases (IBDs), such as ulcerative colitis (UC), are characterized by a disturbance of the normal gut microbiota and contribute to the development of chronic kidney disease (CKD). The incidence of CKD is higher in individuals with UC, but the causal link is unknown. Therefore, we investigated the role of gut microbiota in decreasing renal function in patients with UC Methods We performed 16S ribosomal DNA sequencing using ileocecal mucosal samples from nine individuals with UC and CKD (UC+CKD), 29 individuals with UC only, and 12 healthy controls. We also analyzed the operational taxonomic units, microbial diversity, and correlation with renal function. Co-culture assay using kidney organoids and Caco-2 cells was performed. Figure 1. The taxonomic composition of the gut microbiota of the study population and comparison of the 10 most abundant genera and species in the UC + CKD, UC, and control groups. Results Bacterial species diversity was significantly decreased in the UC+CKD group compared to that in the other groups based on Shannon and inverse Simpson indexes. At the genus level, Ralstonia had significantly greater abundance in the UC+CKD and UC groups compared to the control group. At the species level, unclassified Ralstonia species and Citrobacter portucalensis showed higher abundance in the UC+CKD group compared to the other groups. The relative abundance of Ralstonia showed a negative correlation with the estimated glomerular filtration rate (eGFR), but a positive correlation with the serum uric acid level. Ralstonia pickettii represented a negative correlation with eGFR, and induced damaging changes to kidney organoids in co-culture assay. Figure 2. The correlation between the relative abundance of Ralstonia with renal function (indicated by eGFR) and serum uric acid level. Effects of Ralstonia pickettii on Caco-2 cells and kidney organoids. (A) mRNA expression of pro-inflammatory cytokine genes in Caco-2 cells treated with and without Ralstonia pickettii, reflecting the inflammation seen in ulcerative colitis. Conclusion Gut microbial community profiles of the UC+CKD group are different from those of the UC group. Furthermore, Ralstonia pickettii contributes in decreasing renal function in patients with UC.

U-shaped relationship between serum uric acid level and decline in renal function during a 10-year period in female subjects: BOREAS-CKD2

2020 ◽  
Vol 44 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Kazuma Mori ◽  
Masato Furuhashi ◽  
Marenao Tanaka ◽  
Keita Numata ◽  
Takashi Hisasue ◽  
...  
Keyword(s):  
Renal Function ◽  
Uric Acid ◽  
Serum Uric Acid ◽  
Uric Acid Level ◽  
Acid Level ◽  
Serum Uric Acid Level ◽  
Female Subjects

scholarly journals Serum Uric Acid Level, Longitudinal Blood Pressure, Renal Function, and Long-Term Mortality in Treated Hypertensive Patients

Hypertension ◽  
2013 ◽  
Vol 62 (1) ◽  
pp. 105-111 ◽  
Author(s):  
Jesse Dawson ◽  
Panniyammakal Jeemon ◽  
Lucy Hetherington ◽  
Caitlin Judd ◽  
Claire Hastie ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Renal Function ◽  
Uric Acid ◽  
Serum Uric Acid ◽  
Uric Acid Level ◽  
Acid Level ◽  
Serum Uric Acid Level ◽  
Hypertensive Patients ◽  
Long Term Mortality

scholarly journals Comparative study of a novel selective urate reabsorption inhibitor “dotinurad” among patient groups with different stages of renal dysfunction

2021 ◽  
Author(s):  
Toshinari Takahashi ◽  
Takanobu Beppu ◽  
Yuji Hidaka ◽  
Tatsuo Hosoya
Keyword(s):  
Renal Function ◽  
Uric Acid ◽  
Renal Dysfunction ◽  
Serum Uric Acid ◽  
Uric Acid Level ◽  
Acid Level ◽  
Serum Uric Acid Level ◽  
Patient Groups ◽  
Urate Reabsorption

Abstract Background Dotinurad is a selective urate reabsorption inhibitor (SURI), which selectively inhibits URAT1 to lower serum uric acid levels in patients with hyperuricemia. Herein, the effects of dotinurad were compared among patient groups with different stages of renal dysfunction. Methods Patient data from four clinical trials were pooled and divided into four groups according to the stage of renal dysfunction to compare the effects of dotinurad at different stages. The grouping (stages G1–G3b) was based on the estimated glomerular filtration rate (eGFR) of the patients. In addition, patient data from a long-term study (34 or 58 weeks) were evaluated in the same manner. Results In the pooled analysis, the percentage of patients achieving a serum uric acid level of ≤ 6.0 mg/dL was 64.7–100.0% at a dose of 2 or 4 mg. In the long-term analysis, the percentage of patients achieving a serum uric acid level of ≤ 6.0 mg/dL was 60.0–100.0% at a dose of 2 or 4 mg. Although the outcomes in stage G3b were worse due to higher baseline serum uric acid levels, satisfactory outcomes were observed in all stages. Even in stages G3a and G3b, when renal function declined, the eGFR remained constant throughout the dose period. Conclusion The efficacy of dotinurad was confirmed in hyperuricemic patients with normal renal function (stage G1) and mild to moderate renal dysfunction (stage G2–G3b). Dotinurad was found to be effective in the treatment of hyperuricemia in patients with mild to moderate renal dysfunction.

A STUDY OF SERUM URIC ACID LEVELS IN PREECLAMPSIA

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Sushma Goad ◽  
Anita Verma ◽  
Subhash Chandra
Keyword(s):  
Uric Acid ◽  
Serum Uric Acid ◽  
Uric Acid Level ◽  
Acid Level ◽  
Serum Uric Acid Level ◽  
Control Group ◽  
Age Group ◽  
Hypertensive Disorders Of Pregnancy ◽  
Level Elevation ◽  
The Mean

Background: To Study Serum Uric Acid level elevation in Hypertensive Disorders of Pregnancy. Methods: 50 Patients diagnosed as having Pre-eclampsia with age between 18-37 years and 50 controls with similar age group. Results: The mean serum uric acid level in control group was 3.41 ± 0.62 and in patient 7.01 ± 0.58 which was statistically significant (p =0.001). Conclusion: Serum uric acid levels were significantly higher in preeclampsia could be a useful indicator of fetal complication in preeclampsia patients. Keywords: serum uric acid, preeclampsia, laboratory.

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