Adjuvant Role of Human Heterotopic Fetal Kidney Tissue Transplant in Reversing the Visible Parameters of Chronic Renal Diseases: A Preliminary Report of 9 Cases

2012 ◽  
pp. 321-331
Author(s):  
Niranjan Bhattacharya
Keyword(s):  
Preliminary Report ◽  
Kidney Tissue ◽  
Renal Diseases ◽  
Fetal Kidney ◽  
Tissue Transplant ◽  
Chronic Renal Diseases

scholarly journals Human Glucose Transporters in Renal Glucose Homeostasis

2021 ◽  
Vol 22 (24) ◽  
pp. 13522
Author(s):  
Aleksandra Sędzikowska ◽  
Leszek Szablewski
Keyword(s):  
Glucose Homeostasis ◽  
Kidney Tissue ◽  
Glucose Transporters ◽  
Blood Stream ◽  
Renal Physiology ◽  
Renal Diseases ◽  
Carrier Proteins ◽  
Sodium Dependent ◽  
Pass Through

The kidney plays an important role in glucose homeostasis by releasing glucose into the blood stream to prevent hypoglycemia. It is also responsible for the filtration and subsequent reabsorption or excretion of glucose. As glucose is hydrophilic and soluble in water, it is unable to pass through the lipid bilayer on its own; therefore, transport takes place using carrier proteins localized to the plasma membrane. Both sodium-independent glucose transporters (GLUT proteins) and sodium-dependent glucose transporters (SGLT proteins) are expressed in kidney tissue, and mutations of the genes coding for these glucose transporters lead to renal disorders and diseases, including renal cancers. In addition, several diseases may disturb the expression and/or function of renal glucose transporters. The aim of this review is to describe the role of the kidney in glucose homeostasis and the contribution of glucose transporters in renal physiology and renal diseases.

scholarly journals Histone Lysine Methylation in TGF-β1 Mediated p21 Gene Expression in Rat Mesangial Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Qiaoyan Guo ◽  
Xiaoxia Li ◽  
Hongbo Han ◽  
Chaoyuan Li ◽  
Shujun Liu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transforming Growth Factor ◽  
Mesangial Cells ◽  
Gene Promoter ◽  
Renal Diseases ◽  
Lysine Methylation ◽  
Histone Lysine Methylation ◽  
Histone Lysine ◽  
Chronic Renal Diseases

Transforming growth factor beta1- (TGF-β1-) induced p21-dependent mesangial cell (MC) hypertrophy plays a key role in the pathogenesis of chronic renal diseases including diabetic nephropathy (DN). Increasing evidence demonstrated the role of posttranscriptional modifications (PTMs) in the event; however, the precise regulatory mechanism of histone lysine methylation remains largely unknown. Here, we examined the roles of both histone H3 lysine 4 and lysine 9 methylations (H3K4me/H3K9me) in TGF-β1 induced p21 gene expression in rat mesangial cells (RMCs). Our results indicated that TGF-β1 upregulated the expression of p21 gene in RMCs, which was positively correlated with the increased chromatin marks associated with active genes (H3K4me1/H3K4me2/H3K4me3) and negatively correlated with the decreased levels of repressive marks (H3K9me2/H3K9me3) at p21 gene promoter. TGF-β1 also elevated the recruitment of the H3K4 methyltransferase (HMT) SET7/9 to the p21 gene promoter. SET7/9 gene silencing with small interfering RNAs (siRNAs) significantly abolished the TGF-β1 induced p21 gene expression. Taken together, these results reveal the key role of histone H3Kme in TGF-β1 mediated p21 gene expression in RMC, partly through HMT SET7/9 occupancy, suggesting H3Kme and SET7/9 may be potential renoprotective agents in managing chronic renal diseases.

Emerging Role of Circular RNAs in Kidney Diseases in Nephrology

2021 ◽  
Vol 22 ◽  
Author(s):  
Cong Ma ◽  
Junjun Luan ◽  
Jeffrey B. Kopp ◽  
Hua Zhou
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Nephritis ◽  
Lupus Erythematosus ◽  
Kidney Diseases ◽  
Kidney Tissue ◽  
Current Status ◽  
Renal Diseases ◽  
Circular Rnas ◽  
Systemic Lupus

Background: Circular RNAs (circRNAs) have been identified to be involved in a variety of human diseases such as cancers, cardiovascular diseases, and autoimmune diseases. In recent years, the role of circRNAs in the development of kidney diseases in nephrology has been gradually recognized. Objective: We updated and described the current status of circRNAs in kidney diseases in nephrology. We particularly focused on the roles and mechanisms of circRNAs in systemic lupus erythematosus and lupus nephritis. Methods: We summarized recent reports published on PubMed, Web of Science, Scopus, Scielo databases using key words circRNAs, kidney diseases or renal diseases, or systemic lupus erythematosus. Results: Studies of circRNAs in certain kidney diseases such as acute kidney injury, focal segmental glomerulosclerosis, idiopathic membranous nephropathy, IgA nephropathy, diabetic nephropathy, hypertensive renal damage and particular lupus nephritis address the function and pathogenesis of circRNAs in these diseases. Mechanisms of circRNAs in the above human kidney diseases so far have focused on the role of sponging microRNAs and regulating the expression of target genes. Moreover, circRNAs have been detected in blood, urine, and kidney tissue samples. These results suggest that circRNAs can serve as biomarkers for the diagnosis and monitoring the progression of kidney diseases. Conclusion: CircRNAs play important roles in the pathogenesis, diagnosis, and treatment of kidney diseases emphasizing lupus nephritis in nephrology.

scholarly journals P0415MONOCLONAL GAMMOPATHY-RELATED RENAL DISEASES: NEW CLINICAL AND HISTOLOGICAL PATTERNS

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Giulia Schiavone ◽  
Marisa Santostefano ◽  
Benedetta Fabbrizio ◽  
Elena Mancini
Keyword(s):  
Renal Biopsy ◽  
Light Chain ◽  
Monoclonal Gammopathy ◽  
Kidney Tissue ◽  
Renal Diseases ◽  
Type I ◽  
Diagnostic Challenge ◽  
Cytoplasmic Inclusions ◽  
Ckd Stage

Abstract Background and Aims In the last few years new clinical-histopathological forms of paraproteinemia associated kidney disease have emerged: light chain proximal tubulopathies, proliferative glomerulonephritis with monoclonal immunoglobulin deposits (PGNMID) and C3-glomerulopathy. It is now widely recognized that the pathogenic role of the monoclonal protein depends on the free light chain chemical-physical features, even in the case of “dangerous small B cell clones”. Thus MGRS (monoclonal gammopathy of renal significance) associated disease is now considered a different entity from monoclonal gammopathy of undetermined significance (MGUS). Method We retrospectively evaluated the clinical-histopathological features of the biopsies performed in our Nephrological Unit on patients with MGUS in 2008-2018, in order to re-classify them in accordance with the recent scientific literature. Results Nine patients (7 M/2 F; age 46-77 y) were analyzed: five of them suffering from CKD stage 2, four of them with AKI or rapidly progressive CKD, 7 with proteinuria > 1 g/day, 2 with physiological proteinuria. Bone marrow biopsy: 7 patients with MGUS, 2 with smoldering multiple myeloma. Renal biopsy: 4 glomerulopathies (monoclonal fibrillary glomerulonephritis, cryoglobulinaemic (type I) glomerulonephritis, C3 glomerulonephritis, PGNMID), 5 proximal tubulopathies (2 LCPT with Fanconi syndrome, 1 LCPT without cytoplasmic inclusions and with interstitial inflammatory reaction, 2 LCPT with acute tubular necrosis) Table 1, Table 2, Light microscopy and IF of PGNMID. Conclusion MGRS is responsible for the pathogenesis of new histopathological renal lesions, based on new pathogenetic pathways. The clinical and histological features of the different disease states are dependent on the structure of FLCs. Our retrospective analysis of MGRS biopsies confirms how difficult and complex the diagnostic challenge of monoclonal renal injury really is. The differentiation between MGUS and MGRS is based on renal biopsy and demonstration of monoclonality on kidney tissue even if serum/urine immunofixation is negative. Early biomarkers of the pathogenetic role of monoclonal FLC should be identified both for diagnosis and therapeutical monitoring.

Preliminary Report on the Research of “Activity Centers” in Taidong, Taiwan

2019 ◽  
Vol 40 (2) ◽  
pp. 121-125
Author(s):  
Petr Janda
Keyword(s):  
Preliminary Report ◽  
Research Method ◽  
Local Communities ◽  
Traditional Beliefs ◽  
Aboriginal Communities ◽  
Religious Significance ◽  
Local Actors ◽  
Symbolic Value ◽  
Suitable Location

This report presents current research on aboriginal activity centers in Taidong County, Taiwan, primarily in the townships of Chishang and Yanping with over 30% of the population being of aboriginal ancestry. Taidong County is the region with the most distinctive aboriginal communities in Taiwan. The research attempts to identify the actors behind the operation of such centers and their significance for aboriginal communities. The research investigates the process of selecting suitable location for the facilities, the specific features of such centers, the potential religious significance of the locations including the role of traditional beliefs in predominantly Christian aboriginal communities, the symbolic value of structures built in the traditional style for construction of ethnicity and financing that enables the construction of the facilities and the organization of the festivities held in them. The principle research method used was interviews with local actors including local representatives, organizers of festivities, as well as members of local communities. The research began in 2017.

The Role of Cannabinoid Receptors in Renal Diseases

2018 ◽  
Vol 25 (7) ◽  
pp. 793-801 ◽  
Author(s):  
Helene Francois ◽  
Lola Lecru
Keyword(s):  
Cannabinoid Receptors ◽  
Renal Diseases

scholarly journals Kinins and Kinin Receptors in Cardiovascular and Renal Diseases

2021 ◽  
Vol 14 (3) ◽  
pp. 240
Author(s):  
Jean-Pierre Girolami ◽  
Nadine Bouby ◽  
Christine Richer-Giudicelli ◽  
Francois Alhenc-Gelas
Keyword(s):  
Experimental Studies ◽  
Physiological Role ◽  
Renal Diseases ◽  
Kinin System ◽  
Genetic Studies ◽  
Pharmacological Manipulation ◽  
Kininase Ii ◽  
Kinin Receptors ◽  
Kallikrein Kinin System

This review addresses the physiological role of the kallikrein–kinin system in arteries, heart and kidney and the consequences of kallikrein and kinin actions in diseases affecting these organs, especially ischemic and diabetic diseases. Emphasis is put on pharmacological and genetic studies targeting kallikrein; ACE/kininase II; and the two kinin receptors, B1 (B1R) and B2 (B2R), distinguished through the work of Domenico Regoli and his collaborators. Potential therapeutic interest and limitations of the pharmacological manipulation of B1R or B2R activity in cardiovascular and renal diseases are discussed. This discussion addresses either the activation or inhibition of these receptors, based on recent clinical and experimental studies.

scholarly journals Healthy Ageing and Vaccines: Application of the P4 Medicine Concept to Immunizations

Gerontology ◽  
2021 ◽  
pp. 1-7
Author(s):  
Jean-Pierre Michel ◽  
Fiona Ecarnot
Keyword(s):  
Life Course ◽  
Health Care Professionals ◽  
Personal Autonomy ◽  
Scientific Evidence ◽  
Functional Decline ◽  
Healthy Ageing ◽  
Renal Diseases ◽  
P4 Medicine ◽  
Community Protection

In today’s tormented world, it appears useful to take advantage of communication channels to promote life-course immunization and affirm its major role in healthy ageing. Instead of developing the argument of chronological age, we demonstrate the life-course principle here based on the P4 medicine concept. Are vaccines “preventive, personalized, predictive, and participatory?” Based on detailed analysis of research findings, we successively demonstrate the seminal role of vaccines on preventable infectious diseases, post-sepsis functional decline, non-communicable diseases (cardio-neuro-vascular, respiratory, and renal diseases), community protection, antimicrobial resistance, and perhaps even old-age dementia. Healthy ageing and the promotion of immunization are closely dependent on health literacy and provision of information by skilled health-care professionals. However, personal autonomy and individual freedom are influenced by psycho-cognitive hurdles (cultural approaches, beliefs, emotions, and behaviours), the opinions of the public/family/friends, and the increasing role of social media, which challenges scientific evidence. A similar phenomenon exists when dealing with the issue of healthy ageing, whose success depends greatly on life-course immunization.

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