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Asghar MS, Denic A, Rule AD. Morphometric analysis of chronicity on kidney biopsy: a useful prognostic exercise. Clin Kidney J 2024; 17:sfad226. [PMID: 38327281 PMCID: PMC10849190 DOI: 10.1093/ckj/sfad226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 02/09/2024] Open
Abstract
Chronic changes on kidney biopsy specimens include increasing amounts of arteriosclerosis, glomerulosclerosis, interstitial fibrosis and tubular atrophy, enlarged nephron size, and reduced nephron number. These chronic changes are difficult to accurately assess by visual inspection but are reasonably quantified using morphometry. This review describes the various patient populations that have undergone morphometric analysis of kidney biopsies. The common approaches to morphometric analysis are described. The chronic kidney disease outcomes associated with various chronic changes by morphometry are also summarized. Morphometry enriches the characterization of chronicity on a kidney biopsy and this can supplement the pathologist's diagnosis. Artificial intelligence image processing tools are needed to automate the annotations needed for practical morphometric analysis of kidney biopsy specimens in routine clinical care.
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Affiliation(s)
- Muhammad S Asghar
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Aleksandar Denic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Andrew D Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
- Division of Epidemiology, Mayo Clinic, Rochester, MN, USA
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Abdelhady SA, Ali MA, Yacout DM, Essawy MM, Kandil LS, El-Mas MM. The suppression of MAPK/NOX/MMP signaling prompts renoprotection conferred by prenatal naproxen in weaning preeclamptic rats. Sci Rep 2023; 13:17498. [PMID: 37840054 PMCID: PMC10577149 DOI: 10.1038/s41598-023-44617-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023] Open
Abstract
Although nonsteroidal antiinflammatory drugs (NSAIDs) are frequently used for fever and pain during pregnancy, their possible interaction with perinatal renal injury induced by preeclampsia (PE) has not been addressed. Here, studies were undertaken in the N(gamma)-nitro-L-arginine methyl ester (L-NAME) PE model to assess the influence of gestational NSAIDs on renal damage in weaning dams. PE-evoked increments and decrements in urine protein and creatinine clearance, respectively, were intensified by celecoxib and weakened by diclofenac or naproxen. Naproxen also improved renal cloudy swelling, necrosis, and reduced glomerular area evoked by PE. The concomitant rises in renal expression of markers of oxidative stress (NOX2/4), extracellular matrix metaloproteinase deposition (MMP9), and prostanoids (PGE2, PGF2α, TXA2) were all more effectively reduced by naproxen compared with celecoxib or diclofenac. Western blotting showed tripled expression of mitogen-activated protein kinases (MAPKs; p-p38, p-JNK1, p-ERK1, p-ERK2) in PE kidneys that was overturned by all NSAIDs, with naproxen producing the largest drop in p-ERK2 expression. The PE-provoked elevation in renal expression of autophagic marker LC3 was reduced by naproxen and diclofenac, but not celecoxib. The data suggests superior effect for naproxen over other NSAIDs in rectifying preeclamptic renal injury and predisposing inflammatory, oxidative, autophagic, and fibrotic signals.
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Affiliation(s)
- Sherien A Abdelhady
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Canal El Mahmoudia Street, Alexandria, 21568, Egypt.
| | - Mennatallah A Ali
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University in Alexandria, Canal El Mahmoudia Street, Alexandria, 21568, Egypt
| | - Dalia M Yacout
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Marwa M Essawy
- Department of Oral Pathology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
- Center of Excellence for Research in Regenerative Medicine and Applications (CERRMA), Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Lamia S Kandil
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Mahmoud M El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
- Department of Pharmacology and Toxicology, College of Medicine, Kuwait University, Kuwait City, Kuwait
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de Oliveira Fernandes D, César FG, Melo BP, Brandão JDSF, Dos Santos KJ, de Andrade MT, da Fonseca Casteluber MC, de Carvalho MV, de Barcellos LAM, Soares DD, Bohnen Guimarães J. Chronic supplementation of noni in diabetic type 1-STZ rats: effects on glycemic levels, kidney toxicity and exercise performance. Diabetol Metab Syndr 2023; 15:191. [PMID: 37794521 PMCID: PMC10548663 DOI: 10.1186/s13098-023-01171-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/23/2023] [Indexed: 10/06/2023] Open
Abstract
Noni is a fruit with potential medicinal use preventing elevated blood glucose levels in diabetes mellitus. Its effects have been attributed to an antioxidant property in several other diseases. However, the effects of noni-chronic supplementation on exercise performance in the presence of diabetes conditions are not known. Thirty-two male Wistar rats were used to verify the effects of chronic noni (Morinda citrifolia L) juice administration on glycemia, triglyceride levels, and its relation to physical performance. In addition, it was verified if chronic noni supplementation is safe for clinical use through kidney morphology analysis. In half of the rats, diabetes mellitus (DM) was induced with STZ. All rats were submitted to an incremental workload running test (IWT) until fatigued so that oxygen consumption and performance indexes (exercise time to fatigue and workload) could be analyzed before noni administration. Then, the control and DM groups received a placebo (saline solution) or noni juice (dilution 2:1) at a dose of 2 mL/kg once a day for 60 days. The result was four groups: control + placebo (CP), control + noni (CN), DM + placebo (DMP), and DM + noni (DMN). Our dose was based on in previous study by Nayak et al. (2011) that observed a significant reduction in glycemia with 2 ml/kg of the noni juice without any toxicity effect cited. Groups were then given a third IWT to verify the effect of the noni juice on exercise performance (exercise time to fatigue, workload, maximal oxygen consumption) and glycemia. Twenty-four hours after the third test, all animals were euthanized and blood and kidneys were removed for posterior analysis. The DM induction with STZ impaired the performance by 39%. Noni administration improved the time to fatigue and workload in DM rats beyond reducing hyperglycemia. These results could be associated with an improved energy efficiency promoted by noni ingestion, since the oxygen consumption was not different between the groups, although the exercise was longer in animals with noni ingestion. Our results provided evidence that chronic noni administration causes kidney damage since increased Bowman's space area in the control rats, suggesting glomerular hyperfiltration at the same magnitude as the non-treated DM group.In conclusion, chronic noni ingestion promoted glycemic control and improved the performance in DM rats but caused kidney toxicity.
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Affiliation(s)
| | | | - Bruno Pereira Melo
- Exercise Physiology Laboratory, School of Physical Education, Physiotherapy and Occupational Therapy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Marcelo Teixeira de Andrade
- Exercise Physiology Laboratory, School of Physical Education, Physiotherapy and Occupational Therapy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Moisés Vieira de Carvalho
- State University of Minas Gerais - Ibirité Unit, Ibirité, Brazil
- Department of Science of Human Movement, State University of Minas Gerais - Ibirité Unit, Av. São Paulo, 3996, Vila do Rosário, Ibirité, 32400-000, Minas Gerais, Brazil
| | - Luiz Alexandre Medrado de Barcellos
- State University of Minas Gerais - Ibirité Unit, Ibirité, Brazil
- Department of Science of Human Movement, State University of Minas Gerais - Ibirité Unit, Av. São Paulo, 3996, Vila do Rosário, Ibirité, 32400-000, Minas Gerais, Brazil
| | - Danusa Dias Soares
- Exercise Physiology Laboratory, School of Physical Education, Physiotherapy and Occupational Therapy, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana Bohnen Guimarães
- State University of Minas Gerais - Ibirité Unit, Ibirité, Brazil.
- Department of Science of Human Movement, State University of Minas Gerais - Ibirité Unit, Av. São Paulo, 3996, Vila do Rosário, Ibirité, 32400-000, Minas Gerais, Brazil.
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Tripathi S, Kashif A, Malik A, Boruah D, Sahu R, Panda S, Paliwal G. Do extraglomerular microvasculature and mesenchymal interstitial cell proliferation indicate a stable course of lupus nephritis? Med J Armed Forces India 2021; 78:327-332. [DOI: 10.1016/j.mjafi.2021.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/08/2021] [Indexed: 11/29/2022] Open
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