scholarly journals Intestinal dysbiosis featuring abundance of Streptococcus associates with Henoch-Schönlein purpura nephritis (IgA vasculitis with nephritis) in adult

2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Jiaxing Tan ◽  
Zhengxia Zhong ◽  
Yi Tang ◽  
Wei Qin
Keyword(s):  
Gut Microbiota ◽  
Intestinal Microbiota ◽  
Fecal Microbiota ◽  
Healthy Controls ◽  
Henoch Schonlein Purpura ◽  
Intestinal Dysbiosis ◽  
Clinical Indices ◽  
Schonlein Purpura ◽  
Henoch Schönlein Purpura ◽  
Purpura Nephritis

Abstract Background The pathogenesis of Henoch-Schönlein purpura nephritis (HSPN) is closely associated with mucosal infection. But whether intestinal microbiota dysbiosis plays a role in it is not clear. Methods A total of 52 participants including 26 HSPN patients and 26 healthy controls were included. By using 16S ribosomal RNA gene sequencing, the intestinal microbiota composition between HSPN and healthy controls was compared. The diagnostic potency was evaluated by Receiver operating characteristic (ROC) with area under curves (AUC). Meanwhile, correlation analysis was also performed. Results The lower community richness and diversity of fecal microbiota was displayed in HSPN patients and the structure of gut microbiota was remarkedly different. A genus-level comparison indicated a significant increase in the proportions of g-Bacteroides, g-Escherichia–Shigella and g-Streptococcus, and a marked reduction of g-Prevotella_9 in HSPN patients, suggesting that the overrepresentation of potential pathogens and reduction of profitable strains were the main feature of the dysbiosis. The differential taxonomic abundance might make sense for distinguishing HSPN from healthy controls, with AUC of 0.86. The relative abundance of the differential bacteria was also concerned with clinical indices. Among them, Streptococcus spp. was positively associated with the severity of HSPN (P < 0.050). It was found that HSPN patients with higher level of Streptococcus spp. were more likely to suffering from hematuria and hypoalbuminemia (P < 0.050). Conclusions The dysbiosis of gut microbiota was obvious in HSPN patients, and the intestinal mucosal streptococcal infection was distinctive, which was closely related to its severity.

scholarly journals Effect of gut microbiota from Henoch-Schönlein Purpura patients on acid-sensitive ion channel 3 expression and intestinal motility in germ-free rats

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jin-kun Wang ◽  
Bo Yan ◽  
Jun-mei Zhao ◽  
Li-ping Yuan
Keyword(s):  
Gut Microbiota ◽  
Intestinal Microbiota ◽  
Intestinal Motility ◽  
Fecal Microbiota ◽  
Control Group ◽  
Healthy Children ◽  
Visceral Sensitivity ◽  
Henoch Schonlein Purpura ◽  
Germ Free ◽  
Schonlein Purpura

Abstract Background It has been proven that gut microbiota alterations are involved in the development of Henoch-Schönlein Purpura (HSP). However, the pathogenesis of HSP hasn’t been eluciated. This study was to investigate the impact of gut microbiota from HSP on ASIC3 expression and interactions between microbiota and ASIC3 expression in the development of HSP. Methods Feces collected from HSP and healthy children at the First Affiliated Hospital of Anhui Medical University were made into fecal microbial solutions. Germ-free rats were randomly assigned to either the control or HSP groups. The HSP group of rats were administered the fecal microbiota solution of HSP children, while the control group rats were administered the fecal microbiota solution of healthy children. Abdominal withdrawal reflex (AWR) and intestinal propulsion rate of the rats were used to determine visceral sensitivity. Composition of the gut microbiota of HSP children was determined using 16S rRNA gene sequencing. ASIC3 expression in the colon was ascertained through qRT-PCR as well as western blotting analysis. Results The results showed a reduction in the number of species and abundance in the intestinal microbiota of children with HSP. Visceral sensitivity and intestinal propulsion rate of HSP group rats increased significantly, compared with the control group. Colon ASIC3 mRNA and protein levels in the HSP group were found to be upregulated. The microbiota dysbiosis of HSP patients could stimulate ASIC3 expression in the colon of Germ-free rats, which in turn affected intestinal motility. Conclusions These results suggested that HSP children had intestinal microbiota disorder, which might affect gut motility by down-regulating colon ASIC3 expression in rats.

scholarly journals Serum-Urine Matched Metabolomics for Predicting Progression of Henoch-Schonlein Purpura Nephritis

2021 ◽  
Vol 8 ◽  
Author(s):  
Qian Zhang ◽  
Ling-Yun Lai ◽  
Yuan-Yuan Cai ◽  
Ma-Jie Wang ◽  
Gaoxiang Ma ◽  
...  
Keyword(s):  
Vaccenic Acid ◽  
Henoch Schonlein Purpura ◽  
Metabolic Markers ◽  
Citrate Cycle ◽  
Flight Mass Spectrometry ◽  
Persistent Proteinuria ◽  
Clinical Indices ◽  
Schonlein Purpura ◽  
Henoch Schönlein Purpura ◽  
Purpura Nephritis

Henoch-Schonlein purpura nephritis (HSPN) is a common glomerulonephritis secondary to Henoch-Schonlein purpura (HSP) that affects systemic metabolism. Currently, there is a rarity of biomarkers to predict the progression of HSPN. This work sought to screen metabolic markers to predict the progression of HSPN via serum-urine matched metabolomics. A total of 90 HSPN patients were enrolled, including 46 HSPN (+) patients with severe kidney damage (persistent proteinuria &gt;0.3 g/day) and 44 HSPN (–) patients without obvious symptoms (proteinuria &lt; 0.3 g/day). Untargeted metabolomics was determined by liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q/TOF-MS). A total of 38 and 50 differential metabolites were, respectively, identified in serum and urine from the comparison between HSPN (+) and HSPN (–) patients. Altered metabolic pathways in HSPN (+) mainly included glycerophospholipid metabolism, pyruvate metabolism, and citrate cycle. A panel of choline and cis-vaccenic acid gave areas under the curve of 92.69% in serum and 72.43% in urine for differential diagnosis between HSPN (+) and HSPN (–). In addition, the two metabolites showed a significant association with clinical indices of HSPN. These results suggest that serum-urine matched metabolomics comprehensively characterized the metabolic differences between HSPN (+) and HSPN (–), and choline and cis-vaccenic acid could serve as biomarkers to predict HSPN progression.

scholarly journals Biopsy-proven Henoch-Schönlein purpura nephritis: a single center experience

2020 ◽  
Author(s):  
Eda Didem Kurt-Şükür ◽  
Thivya Sekar ◽  
Kjell Tullus
Keyword(s):  
Angiotensin Receptor Blockers ◽  
Laboratory Data ◽  
Treatment Modalities ◽  
Oxford Classification ◽  
Henoch Schonlein Purpura ◽  
Nephritic Syndrome ◽  
Kidney Involvement ◽  
Schonlein Purpura ◽  
Henoch Schönlein Purpura ◽  
Purpura Nephritis

Abstract Background Knowledge on normal progress and treatment of Henoch-Schönlein purpura nephritis (HSPN) is limited. This study reviews outcome, clinical, pathological, and therapeutic factors affecting the prognosis of HSPN patients. Methods Forty-nine children with biopsy-confirmed HSPN diagnosed between September 2008 and 2018 were included. Demographics, clinical and laboratory data, treatment, and outcome were recorded at the time of biopsy, 3, 6, 12, and 24 months and at last visit. Clinical outcome was graded according to Meadow’s criteria. Results The median age at time of biopsy was 10.1 years (IQR:5.7) and female/male ratio 24/25. At presentation, 40.8% of patients had nonnephrotic proteinuria, 18.4% nephrotic syndrome (NS), 4.1% nephritic syndrome (NephrS), and 36.7% NephrS+NS. There were 11 patients with an estimated glomerular filtration rate below 90 ml/min/1.73 m2. Biopsy specimens were classified according to International Study of Kidney Diseases in Children (ISKDC) and Oxford Classification MEST-C scoring systems. Forty-one patients received angiotensin-converting enzyme inhibitors/angiotensin receptor blockers, 37 patients steroids, and 35 patients other immunosuppressive medications. At last visit, 24 patients had stage 1 chronic kidney disease (CKD), three stage 2 CKD, and two had stage 5 CKD. Neither clinical parameters nor ISKDC biopsy grade or treatment modalities effected the final outcome. The Oxford classification showed significantly increased segmental glomerulosclerosis in patients with unfavorable outcome. Favorable outcome was associated with shorter time from kidney involvement to biopsy and start of treatment. Conclusion A large proportion of patients continued to show signs of CKD at last follow-up while only a small proportion developed stage 5 CKD.

Correlation between endocapillary proliferative and nephrotic-range proteinuria in children with Henoch-Schönlein purpura nephritis

2018 ◽  
Vol 34 (4) ◽  
pp. 663-670 ◽  
Author(s):  
Xiao-qing Yang ◽  
Yan-jie Huang ◽  
Wen-sheng Zhai ◽  
Xian-qing Ren ◽  
Qing-yin Guo ◽  
...  
Keyword(s):  
Henoch Schonlein Purpura ◽  
Schonlein Purpura ◽  
Nephrotic Range Proteinuria ◽  
Henoch Schönlein Purpura ◽  
Purpura Nephritis

The incidence and severity of Henoch-Schönlein purpura nephritis over a 22-year period in Fukushima Prefecture, Japan

2010 ◽  
Vol 42 (4) ◽  
pp. 1023-1029 ◽  
Author(s):  
Yukihiko Kawasaki ◽  
Kazuhide Suyama ◽  
Eichi Yugeta ◽  
Masahiko Katayose ◽  
Shigeo Suzuki ◽  
...  
Keyword(s):  
Henoch Schonlein Purpura ◽  
Fukushima Prefecture ◽  
Schonlein Purpura ◽  
Henoch Schönlein Purpura ◽  
Purpura Nephritis
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