Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin

Introduction: Patients with chronic kidney disease (CKD) have increasingly been diagnosed with cognitive impairment. Glycogen synthase kinase 3β (GSK3β) is directly causing both phosphorylated tau (pTau) and amyloid β (Aβ) accumulation in Alzheimer’s disease (AD). GSK3β expression is more abundant i...

Full description

Bibliographic Details
Main Authors: Vinothkumar Ganesan, Krishnakumar Sethuraman, Sureshkumar Sureshkumar, Venkataraman Prabhu
Format: Article
Language:English
Published: Society of Diabetic Nephropathy Prevention 2023-09-01
Series:Journal of Nephropathology
Subjects:
Online Access:https://nephropathol.com/PDF/jnp-12-e17238.pdf
_version_ 1797676471871864832
author Vinothkumar Ganesan
Krishnakumar Sethuraman
Sureshkumar Sureshkumar
Venkataraman Prabhu
author_facet Vinothkumar Ganesan
Krishnakumar Sethuraman
Sureshkumar Sureshkumar
Venkataraman Prabhu
author_sort Vinothkumar Ganesan
collection DOAJ
description Introduction: Patients with chronic kidney disease (CKD) have increasingly been diagnosed with cognitive impairment. Glycogen synthase kinase 3β (GSK3β) is directly causing both phosphorylated tau (pTau) and amyloid β (Aβ) accumulation in Alzheimer’s disease (AD). GSK3β expression is more abundant in human platelets than in other blood cells. Recombinant human erythropoietin (rHuEPO) is a common medicine for treating anemia in patients with CKD, as well as a neuroprotective agent. Objectives: The goal of this research is to find out how platelet GSK3β regulates plasma Aβ, total Tau and tau phosphorylated at threonine 181 (p-tau181) levels in CKD patients with cognitive dysfunction and also the efficacy of rHuEPO treatment. Patients and Methods: The study included 60 participants, which consist of 30 CKD without cognitive dysfunction and 30 CKD with cognitive dysfunction based on the neuropsychological examination. The expression of GSK3β in platelets was evaluated using a western blot and plasma Aβ, total Tau, pTau 181 levels were quantified by ELISA. The data were compared statistically (P< 0.05) to AD, normocytic normochromic anemic and healthy patients. Results: In CKD with cognitive dysfunction subjects, platelet GSK3β expression and plasma Aβ, total Tau and pTau181 levels were significantly (P< 0.05) altered like AD when compared to normocytic normochromic anemic, healthy and CKD without cognitive dysfunction subjects. In post rHuEPO (100 IU/kg, weekly twice, six months) treatment, the altered protein abnormalities were retrieved significantly (P<0.05) compared to pre-treatment. Conclusion: This study established that platelet GSK3β expression and plasma Aβ, total Tau, pTau181 are the candidate biomarkers for cognitive dysfunction in CKD patients. The clinical utility of rHuEPO as a GSK3β inhibitor and therapeutic agent for cognitive dysfunction in CKD has been determined.
first_indexed 2024-03-11T22:28:38Z
format Article
id doaj.art-29684b4bc862419eb5a4b846517d77fd
institution Directory Open Access Journal
issn 2251-8363
2251-8819
language English
last_indexed 2024-03-11T22:28:38Z
publishDate 2023-09-01
publisher Society of Diabetic Nephropathy Prevention
record_format Article
series Journal of Nephropathology
spelling doaj.art-29684b4bc862419eb5a4b846517d77fd2023-09-23T11:33:13ZengSociety of Diabetic Nephropathy PreventionJournal of Nephropathology2251-83632251-88192023-09-01124e17238e1723810.34172/jnp.2022.17238jnp-17238Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietinVinothkumar Ganesan0Krishnakumar Sethuraman1Sureshkumar Sureshkumar2Venkataraman Prabhu3Department of Medical Research, SRM Medical college Hospital, SRM Institute of Science and Technology, Chennai, IndiaDepartment of Nephrology, SRM Medical college Hospital, SRM Institute of Science and Technology, Chennai, IndiaDepartment of Neurology, Balaji Medical College Hospital, Chrompet, Chennai, IndiaDepartment of Medical Research, SRM Medical college Hospital, SRM Institute of Science and Technology, Chennai, IndiaIntroduction: Patients with chronic kidney disease (CKD) have increasingly been diagnosed with cognitive impairment. Glycogen synthase kinase 3β (GSK3β) is directly causing both phosphorylated tau (pTau) and amyloid β (Aβ) accumulation in Alzheimer’s disease (AD). GSK3β expression is more abundant in human platelets than in other blood cells. Recombinant human erythropoietin (rHuEPO) is a common medicine for treating anemia in patients with CKD, as well as a neuroprotective agent. Objectives: The goal of this research is to find out how platelet GSK3β regulates plasma Aβ, total Tau and tau phosphorylated at threonine 181 (p-tau181) levels in CKD patients with cognitive dysfunction and also the efficacy of rHuEPO treatment. Patients and Methods: The study included 60 participants, which consist of 30 CKD without cognitive dysfunction and 30 CKD with cognitive dysfunction based on the neuropsychological examination. The expression of GSK3β in platelets was evaluated using a western blot and plasma Aβ, total Tau, pTau 181 levels were quantified by ELISA. The data were compared statistically (P< 0.05) to AD, normocytic normochromic anemic and healthy patients. Results: In CKD with cognitive dysfunction subjects, platelet GSK3β expression and plasma Aβ, total Tau and pTau181 levels were significantly (P< 0.05) altered like AD when compared to normocytic normochromic anemic, healthy and CKD without cognitive dysfunction subjects. In post rHuEPO (100 IU/kg, weekly twice, six months) treatment, the altered protein abnormalities were retrieved significantly (P<0.05) compared to pre-treatment. Conclusion: This study established that platelet GSK3β expression and plasma Aβ, total Tau, pTau181 are the candidate biomarkers for cognitive dysfunction in CKD patients. The clinical utility of rHuEPO as a GSK3β inhibitor and therapeutic agent for cognitive dysfunction in CKD has been determined.https://nephropathol.com/PDF/jnp-12-e17238.pdfchronic kidney diseasecognitive impairmentaβtau proteingsk3βrecombinant human erythropoietin
spellingShingle Vinothkumar Ganesan
Krishnakumar Sethuraman
Sureshkumar Sureshkumar
Venkataraman Prabhu
Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
Journal of Nephropathology
chronic kidney disease
cognitive impairment

tau protein
gsk3β
recombinant human erythropoietin
title Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
title_full Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
title_fullStr Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
title_full_unstemmed Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
title_short Platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction; therapeutic role of erythropoietin
title_sort platelet glycogen synthase kinase 3β regulates plasma β amyloid and phosphorylated tau levels in chronic kidney disease patients with cognitive dysfunction therapeutic role of erythropoietin
topic chronic kidney disease
cognitive impairment

tau protein
gsk3β
recombinant human erythropoietin
url https://nephropathol.com/PDF/jnp-12-e17238.pdf
work_keys_str_mv AT vinothkumarganesan plateletglycogensynthasekinase3bregulatesplasmabamyloidandphosphorylatedtaulevelsinchronickidneydiseasepatientswithcognitivedysfunctiontherapeuticroleoferythropoietin
AT krishnakumarsethuraman plateletglycogensynthasekinase3bregulatesplasmabamyloidandphosphorylatedtaulevelsinchronickidneydiseasepatientswithcognitivedysfunctiontherapeuticroleoferythropoietin
AT sureshkumarsureshkumar plateletglycogensynthasekinase3bregulatesplasmabamyloidandphosphorylatedtaulevelsinchronickidneydiseasepatientswithcognitivedysfunctiontherapeuticroleoferythropoietin
AT venkataramanprabhu plateletglycogensynthasekinase3bregulatesplasmabamyloidandphosphorylatedtaulevelsinchronickidneydiseasepatientswithcognitivedysfunctiontherapeuticroleoferythropoietin