Adiponectin Paradox in Alzheimer's Disease; Relevance to Amyloidogenic Evolvability?

Adiponectin (APN) is a multi-functional adipokine which sensitizes the insulin signals, stimulates mitochondria biogenesis, and suppresses inflammation. By virtue of these beneficial properties, APN may protect against metabolic syndrome, including obesity and type II diabetes mellitus. Since these diseases are associated with hypoadiponectinemia, it is suggested that loss of function of APN might be involved. In contrast, despite beneficial properties for cardiovascular cells, APN is detrimental in circulatory diseases, including chronic heart failure (CHF) and chronic kidney disease (CKD). Notably, such an APN paradox might also be applicable to neurodegeneration. Although APN is neuroprotective in various experimental systems, APN was shown to be associated with the severity of amyloid accumulation and cognitive decline in a recent prospective cohort study in elderly. Furthermore, Alzheimer's disease (AD) was associated with hyperadiponectinemia in many studies. Moreover, APN was sequestered by phospho-tau into the neurofibrillary tangle in the postmortem AD brains. These results collectively indicate that APN might increase the risk of AD. In this context, the objective of the present study is to elucidate the mechanism of the APN paradox in AD. Hypothetically, APN might be involved in the stimulation of the amyloidogenic evolvability in reproductive stage, which may later manifest as AD by the antagonistic pleiotropy mechanism during aging. Given the accumulating evidenc...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research

Related Links:

Neuroprotective effect of tormentic acid against memory impairment and neuro‑inflammation in an Alzheimer's disease mouse model. Mol Med Rep. 2020 May 18;: Authors: Cui W, Sun C, Ma Y, Wang S, Wang X, Zhang Y Abstract Cognitive impairment and neuro‑inflammatory responses are the distinctive characteristics of Alzheimer's disease (AD). Tormentic acid (TA) is one of the major active components of Potentilla chinensis and has been demonstrated to have anti‑inflammatory properties. However, the potential effects of TA on neuro‑inflammatory responses and memory impairment in AD remain unknown. ...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
LncRNA GAS5 suppresses ER stress‑induced apoptosis and inflammation by regulating SERCA2b in HG‑treated retinal epithelial cell. Mol Med Rep. 2020 May 20;: Authors: Jiang L, Wang C, Shen X Abstract Hyperglycemia impairs the retinal functions in patients with diabetic retinopathy (DR). Downregulation of long non‑coding RNA growth arrest‑specific transcript 5 (lncRNA GAS5) expression in diabetes affects glucose intake and insulin signaling. Sarcoplasmic/endoplasmic reticulum Ca2+ ATPase 2 (SERCA2) mediates the regulation of endoplasmic reticulum (ER) stress and apoptosis in high glucose (HG)‑tr...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Authors: Cui Y, Li Y, Ning J, Mi Y, Wang X, Qiu Z, Li L, Gou X Abstract Mechanical allodynia, which develops in patients of diabetes mellitus as a neuropathic manifestation, remains without an effective treatment. The aim of the present study was to investigate the effects and potential mechanisms underlying resveratrol (RES) in a rat model of streptozocin (STZ)‑induced diabetic mechanical allodynia (DMA). The rat model of DMA was established by the administration of an intraperitoneal injection of STZ. From day 8 post‑STZ injection, rats were administered with an intragastric injection of various doses of RES ...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Authors: Liu Y, Jiang B, Cao Y, Chen W, Yin L, Xu Y, Qiu Z Abstract Dilated cardiomyopathy (DCM) is a disease that can lead to heart expansion and severe heart failure, but the specific pathogenesis remains unclear. Sox5 is a member of the Sox family with a key role in cardiac function. However, the role of Sox5 in DCM remains unclear. In the present study, wild‑type mice were intraperitoneally injected with doxorubicin (Dox) to induce DCM, and heart specimens from human patients with DCM were used to investigate the preliminary role of Sox5 in DCM. The present study demonstrated that, compared with control human...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Diabetic‑induced alterations in hepatic glucose and lipid metabolism: The role of type 1 and type 2 diabetes mellitus (Review). Mol Med Rep. 2020 May 22;: Authors: Jiang S, Young JL, Wang K, Qian Y, Cai L Abstract Diabetes mellitus (DM) is a growing health concern in society. Type 1 and type 2 DM are the two main types of diabetes; both types are chronic diseases that affect glucose metabolism in the body and the impaired regulation of glucose and lipid metabolism promotes the development and progression of DM. During the physiological metabolism process, the liver serves a unique role in glucose and...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Authors: Wang Z, Shen L, Wang Y, Huang S Abstract Alzheimer's disease (AD) is a progressive neurodegenerative disease, which is considered the most common type of dementia worldwide. The aim of the present study was to identify key microRNAs (miRNAs/miRs) and mRNAs affecting the pathogenesis of AD, which may be developed as promising biomarkers for the early diagnosis or targeted therapy of patients with AD. Integrative analysis was performed on 12 representative miRNA datasets and three mRNA datasets of the blood from patients with AD, in order to identify differentially expressed (DE)miRNAs and DEmRNAs. Subsequen...
Source: Molecular Medicine Reports - Category: Molecular Biology Tags: Mol Med Rep Source Type: research
CONCLUSIONS: These results indicate that the CAIDE dementia risk score is associated with cortical thickness and cognitive function at midlife in a low-risk population. These data provide insight into subclinical structural and functional changes occurring during midlife associated with future risk for the development of dementia. PMID: 32467426 [PubMed - as supplied by publisher]
Source: Alzheimer Disease and Associated Disorders - Category: Psychiatry Tags: Alzheimer Dis Assoc Disord Source Type: research
Authors: Gandhi P, Klatt BN, Agrawal Y Abstract People with Alzheimer disease (AD) are at increased risk of falls and disproportionately burdened with vestibular impairment compared with healthy older adults. Although physical therapy (PT) and vestibular physical therapy (VPT) are effective rehabilitation interventions in improving balance and fall risk, referral patterns for these services in the AD population are understudied. A retrospective chart review was conducted of patients seen for primary AD care at a tertiary AD referral center to investigate the frequency of rehabilitation referrals. Of the 801 people ...
Source: Alzheimer Disease and Associated Disorders - Category: Psychiatry Tags: Alzheimer Dis Assoc Disord Source Type: research
Conclusions: 60% of patients with MDD and/or AAD had at least one additional NCCD, which significantly increased the economic and humanistic burden. These findings are important for payers and clinicians in making treatment decisions. These results underscore the need for development of multi-pronged interventions which aim to improve quality of life and reduce activity limitations among patients with mental health disorders and NCCDs. PMID: 32468879 [PubMed - as supplied by publisher]
Source: Journal of Medical Economics - Category: Health Management Tags: J Med Econ Source Type: research
In conclusion, the expression of klotho was demonstrated to be enhanced following treatment with Fos and Val in Ang II-treated NRK-52E cells. The present results indicate that klotho may be involved in the inhibition of Ang II-induced EMT in renal tubular epithelial cells. Therefore, klotho may serve as a protective factor in renal tubulointerstitial fibrosis and aid the treatment of chronic kidney disease (CKD) patients using precision therapy. PMID: 32466632 [PubMed - in process]
Source: Journal of Biological Regulators and Homeostatic Agents - Category: Biomedical Science Tags: J Biol Regul Homeost Agents Source Type: research
More News: Alzheimer's | Brain | Cardiology | Cardiovascular | Chronic Kidney Disease | Diabetes | Diabetes Mellitus | Eating Disorders & Weight Management | Endocrinology | Heart | Heart Failure | Insulin | Metabolic Syndrome | Mitochondria | Neurology | Obesity | Study | Urology & Nephrology