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author:("Zhu, jil")
1.  IgA Nephropathy with Pathologic Features of Membranoproliferative Glomerulonephritis following Burn Injury 
IgA nephropathy (IgAN) is the most common primary glomerulonephritis worldwide, accounting for approximately 30–40% of patients undergoing renal biopsy in Asia. The characteristic and diagnostic lesion of IgAN is the deposition of glomerular IgA. The morphological lesions observed by light microscopy are extremely variable. A causal relationship between IgAN and burn injury has not been established, and the correlation between them is not clear if they appear at the same time. We have explored the cause of severe proteinuria of a Chinese patient with burns of 2nd or 3rd degree after a gas leakage accident 2 weeks ago. The diffuse proliferative glomerulonephritis of this patient revealed type I membranoproliferative glomerulonephritis-like symptoms. Moreover, this patient showed a sensitive response to prednisone. This case report demonstrates the intrinsic relationship between kidney disease and burn injury, which will facilitate a feasible treatment strategy for proteinuria after burn injury.
doi:10.1159/000360523
PMCID: PMC3975747  PMID: 24707281
IgA nephropathy; Burn injury; Nephrotic syndrome
2.  High glucose induces autophagy in podocytes 
Experimental cell research  2013;319(6):779-789.
Autophagy is a cellular pathway involved in protein and organelle degradation. It is relevant to many types of cellular homeostasis and human diseases. High level of glucose is known to inflict podocyte injury, but little is reported about the relationship between high concentrations of glucose and autophagy in these cells. The present study demonstrates that high glucose promotes autophagy in podocytes. Rapamycin further enhances this effect, but 3-methyadenine inhibits it. The proautophagic effect of high glucose manifested in the form of enhanced podocyte expression of LC3-2 and beclin-1; interestingly, antioxidants such as NAC were found to inhibit high glucose-induced autophagy. High glucose induced the generation of ROS by podocytes in a time-dependent manner. High glucose also enhanced podocyte expression of MnSOD and catalase. These findings indicate that high glucose-induced autophagy is mediated through podocyte ROS generation.
doi:10.1016/j.yexcr.2013.01.018
PMCID: PMC3628680  PMID: 23384600
Autophagy; High glucose; Podocytes; Oxidative stress
3.  Angiotensin II Infusion Induces Nephrin Expression Changes and Podocyte Apoptosis 
American journal of nephrology  2008;28(3):500-507.
Background/Aim:
In in vitro studies, angiotensin (Ang) II has been demonstrated to promote podocyte apoptosis. The present study evaluates the effects of Ang II infusion in rats on podocyte nephrin expression and apoptosis and the molecular mechanisms involved in Ang II-induced proteinuria and mesangial expansion.
Methods:
Sprague-Dawley rats were randomly assigned to receive either normal saline or Ang II (400 ng·kg−1·min−1) by means of a mini-osmotic pump for variable time periods. Systolic blood pressure and urinary protein and albumin excretion rate measurements were carried out on days 7, 14, 21, and 28. The animals were sacrificed on days 14 and 28 and evaluated for serum creatinine, renal pathological changes, podocyte apoptosis, renal nephrin mRNA, and protein expression.
Results:
The Ang II-infused rats developed hypertension and proteinuria. On day 14, the Ang II-infused rats showed narrowing of the slit diaphragm, an increase in podocyte nephrin mRNA and protein expression, and alterations in its distribution along the foot processes. On day 28, the Ang II-infused rats demonstrated the presence of apoptotic podocytes and decreased nephrin mRNA and protein expression. There was a negative correlation between nephrin expression and the numbers of apoptotic podocytes (r = −0.63, p < 0.05).
Conclusion:
These results suggest that changes in nephrin expression may play a role in the pathogenesis of Ang II-induced podocyte apoptosis.
doi:10.1159/000113538
PMCID: PMC2630486  PMID: 18204248
Angiotensin II; Proteinuria; Nephrin expression; Podocyte; Apoptosis
4.  Angiotensin II Infusion Induces Nephrin Expression Changes and Podocyte Apoptosis 
American Journal of Nephrology  2008;28(3):500-507.
Background/Aim
In in vitro studies, angiotensin (Ang) II has been demonstrated to promote podocyte apoptosis. The present study evaluates the effects of Ang II infusion in rats on podocyte nephrin expression and apoptosis and the molecular mechanisms involved in Ang II-induced proteinuria and mesangial expansion.
Methods
Sprague-Dawley rats were randomly assigned to receive either normal saline or Ang II (400 ng·kg–1·min–1) by means of a mini-osmotic pump for variable time periods. Systolic blood pressure and urinary protein and albumin excretion rate measurements were carried out on days 7, 14, 21, and 28. The animals were sacrificed on days 14 and 28 and evaluated for serum creatinine, renal pathological changes, podocyte apoptosis, renal nephrin mRNA, and protein expression.
Results
The Ang II-infused rats developed hypertension and proteinuria. On day 14, the Ang II-infused rats showed narrowing of the slit diaphragm, an increase in podocyte nephrin mRNA and protein expression, and alterations in its distribution along the foot processes. On day 28, the Ang II-infused rats demonstrated the presence of apoptotic podocytes and decreased nephrin mRNA and protein expression. There was a negative correlation between nephrin expression and the numbers of apoptotic podocytes (r = −0.63, p < 0.05).
Conclusion
These results suggest that changes in nephrin expression may play a role in the pathogenesis of Ang II-induced podocyte apoptosis.
doi:10.1159/000113538
PMCID: PMC2630486  PMID: 18204248
Angiotensin II; Proteinuria; Nephrin expression; Podocyte; Apoptosis

Results 1-4 (4)