Association of Serum FAM19A5 with Cognitive Impairment in Vascular Dementia

Objective. Family with sequence similarity 19 member A5 (FAM19A5), a novel chemokine-like peptide, is a secreted protein mainly expressed in the brain. FAM19A5 was recently found to be involved in a variety of neurological diseases; however, its correlation with vascular dementia (VaD) remains unclear. The aim of the study is to explore the association between serum FAM19A5 and cognitive impairment in subjects with VaD. Method. 136 VaD subjects and 81 normal controls were recruited in the study. Their demographic and clinical baseline data were collected on admission. All subjects received Mini-Mental State Examination (MMSE) evaluation, which was used to test their cognitive functions. A sandwich enzyme-linked immunosorbent assay (ELISA) was applied to detect the serum levels of FAM19A5. Results. No significant differences were found between the two groups regarding the demographic and clinical baseline data (p>0.05). The serum FAM19A5 levels were significantly higher compared to normal controls (p<0.001). The Spearman correlation analysis indicated that serum FAM19A5 levels and MMSE scores have a significant negative correlation in VaD patients (r=−0.414, <0.001). Further multiple regression analysis indicated that serum FAM19A5 levels were independent risk predictors for cognitive functions in VaD (β=0.419, p=0.031). Conclusion. The serum FAM19A5 level of VaD patients is significantly increased, which may serve as a biomarker to predict cognitive function of VaD.

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Low Serum Levels of Fibroblast Growth Factor 2 in Gunn Rats: A Hyperbilirubinemia Animal Model of Schizophrenic Symptoms

CNS & Neurological Disorders - Drug Targets ◽

10.2174/1871527319999200729153907 ◽

2020 ◽

Vol 19 (7) ◽

pp. 503-508

Author(s):

Maiko Hayashida ◽

Sadayuki Hashioka ◽

Kenji Hayashida ◽

Shoko Miura ◽

Keiko Tsuchie ◽

...

Keyword(s):

Animal Model ◽

Growth Factor ◽

Fibroblast Growth Factor ◽

Wistar Rats ◽

Serum Levels ◽

Significant Negative Correlation ◽

Enzyme Linked Immunosorbent Assay ◽

Normal Strain ◽

Fibroblast Growth ◽

Gunn Rats

Background: Fibroblast growth factor (FGF) 2 (also referred to as basic FGF) is a multifunctional growth factor that plays a pivotal role in the pro-survival, pro-migration and pro-differentiation of neurons. Method: Because alterations in FGF2 levels are suggested to contribute to the pathogenesis schizophrenia, we investigated serum levels of FGF2 in the Gunn rat, a hyperbilirubinemia animal model of schizophrenic symptoms. Results: The enzyme-linked immunosorbent assay showed that the serum levels of FGF2 in Gunn rats were 5.09 ± 0.236 pg/mL, while those in the normal strain Wistar rats were 11.90 ± 2.142 pg/mL. The serum FGF2 levels in Gunn rats were significantly lower than those in Wistar rats. We also measured serum levels of unconjugated bilirubin (UCB) and found a significant negative correlation between UCB and FGF2 at serum levels in all the rats studied. Conclusion: Since it is known that FGF2 regulates dopaminergic neurons and have anti-neuroinflammatory effects, our finding suggests that low FGF2 levels may contribute to the pathogenesis of schizophrenia, in which disbalanced dopamin-ergic signaling and neuroinflammation are supposed to play certain roles.

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Serum CYR61 As A Potential Biomarker for The Diagnosis of Esophagogastric Junction Tumor

Bioscience Reports ◽

10.1042/bsr20204117 ◽

2021 ◽

Author(s):

Ling-Yu Chu ◽

Jian-Yuan Zhou ◽

Yi-Xuan Zhao ◽

Yan-Ting Ou ◽

Tian Yang ◽

...

Keyword(s):

Early Stage ◽

Area Under The Curve ◽

Serum Levels ◽

Enzyme Linked Immunosorbent Assay ◽

Operating Characteristics ◽

Tumor Patients ◽

Chi Square ◽

Potential Biomarker ◽

The Difference ◽

Normal Controls

Background：Esophagogastric junction tumor (EGJ) is a rare but fatal disease with a rapid rising incidence worldwide in the late 20 years, and it lacks a convenient and safe method for diagnosis. This study aimed to evaluate the potential of serum CYR61 as a biomarker for the diagnosis of EGJ tumor. Methods: Enzyme-linked immunosorbent assay (ELISA) was used to estimate CYR61 levels in sera of 152 EGJ tumor patients and 137 normal controls. Receiver operating characteristics (ROC) was carried out to evaluate the diagnostic accuracy. The Mann–Whitney’s U test was used to compare the difference of serum levels of CYR61 between groups. And chi-square tests were employed to estimate the correlation of the positive rate of serum CYR61 between/among subgroups. Results: Serum CYR61 levels were statistically lower in EGJ tumor and early-stage EGJ tumor patients than those in normal controls (P<0.0001). The sensitivity, specificity, and the area under the curve (AUC) of this biomarker in EGJ tumor were 88.2%, 43.8% and 0.691, respectively, and those for early stage of EGJ tumor were 80.0%, 66.4% and 0.722, respectively. Analyses showed that there was no correlation between the clinical data and the levels of CYR61 (P>0.05). Conclusion: This study showed that CYR61 might be a potential biomarker to assist the diagnosis of EGJ tumor.

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Autophagy and mitophagy biomarkers are reduced in sera of patients with Alzheimer’s disease and mild cognitive impairment

Scientific Reports ◽

10.1038/s41598-019-56614-5 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 11

Author(s):

Massimiliano Castellazzi ◽

Simone Patergnani ◽

Mariapina Donadio ◽

Carlotta Giorgi ◽

Massimo Bonora ◽

...

Keyword(s):

Alzheimer’S Disease ◽

Alzheimer's Disease ◽

Cognitive Impairment ◽

Mild Cognitive Impairment ◽

Late Onset ◽

Memory Loss ◽

Serum Levels ◽

Enzyme Linked Immunosorbent Assay ◽

Serum Samples ◽

Cellular Processes

AbstractDementia is a neurocognitive disorder characterized by a progressive memory loss and impairment in cognitive and functional abilities. Autophagy and mitophagy are two important cellular processes by which the damaged intracellular components are degraded by lysosomes. To investigate the contribution of autophagy and mitophagy in degenerative diseases, we investigated the serum levels of specific autophagic markers (ATG5 protein) and mitophagic markers (Parkin protein) in a population of older patients by enzyme-linked immunosorbent assay. Two hundred elderly (≥65 years) outpatients were included in the study: 40 (20 F and 20 M) with mild-moderate late onset Alzheimer’s disease (AD); 40 (20 F and 20 M) affected by vascular dementia (VAD); 40 with mild cognitive impairment (MCI); 40 (20 F and 20 M) with “mixed” dementia (MD); 40 subjects without signs of cognitive impairment were included as sex-matched controls. Our data indicated that, in serum samples, ATG5 and Parkin were both elevated in controls, and that VAD compared with AD, MCI and MD (all p < 0.01). Patients affected by AD, MD, and MCI showed significantly reduced circulating levels of both ATG5 and Parkin compared to healthy controls and VAD individuals, reflecting a significant down-regulation of autophagy and mitophagy pathways in these groups of patients. The measurement of serum levels of ATG5 and Parkin may represent an easily accessible diagnostic tool for the early monitoring of patients with cognitive decline.

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Relationship between heat shock protein 70 and B amyloids in patients with alzheimer disease and vascular dementia

European Psychiatry ◽

10.1016/s0924-9338(11)72212-x ◽

2011 ◽

Vol 26 (S2) ◽

pp. 505-505

Author(s):

Y. Fu ◽

S. Xiao

Keyword(s):

Heat Shock ◽

Alzheimer Disease ◽

Heat Shock Protein ◽

Vascular Dementia ◽

Heat Shock Protein 70 ◽

High Plasma ◽

Enzyme Linked Immunosorbent Assay ◽

Statistical Manual ◽

The Relationship ◽

Normal Controls

AimsExplore the relationship between levels of plasma Aβ1–40, Aβ1–42 and heat shock protein 70 (HSP70) in patients with Alzheimer disease (AD) and vascular dementia (VD) and in elderly non-demented controls.Methods23 patients with AD and 21 patients with VD who meet diagnostic criteria of the Diagnostic Statistical Manual 4th edition and 20 control subjects were enrolled, administered the Mini-Mental State Exam (MMSE) and the Activity of Daily Living (ADL) inventory and their levels of plasma Aβ1–40, Aβ1–42 and HSP70 were measured by sandwich enzyme-linked immunosorbent assay.ResultsThe levels of plasma Aβ1–40, Aβ1–42 and the Aβ1–40/Aβ1–42 ratio were not significantly different across groups, but levels of plasma HSP70 in VD patients was significantly higher than in AD patients and in normal controls (3.19 vs 1.91 vs 1.43ng/ml, respectively; F=6.464, P=0.003). In the AD group MMSE scores were inversely correlated with ADL scores (r=-0.617, P=0.002) and with levels of plasma HSP70 (r=-0.437, P=0.037); but HSP70 levels were positively correlated with age (r=0.616, P=0.002) and with plasma Aβ1–40 (r=0.497, P=0.016) in AD group. In the VD group levels of plasma HSP70 were positively correlated with plasma Aβ1–40 (r=0.436, P=0.048).ConclusionsOur findings provide further evidence that high plasma HSP70 levels may play a role in the diagnosis and differential diagnosis of AD. HSP70 levels in AD patients is inversely associated with cognitive performance and positively correlated with plasma Aβ1–40. Plasma HSP70 in VD patients is significantly elevated and positively correlated with plasma Aβ1–40.

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Correlation between Serum Osteopontin and miR-181a Levels in Allergic Rhinitis Children

Mediators of Inflammation ◽

10.1155/2016/9471215 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6 ◽

Cited By ~ 4

Author(s):

Wenlong Liu ◽

Qingxiang Zeng ◽

Renzhong Luo

Keyword(s):

Allergic Rhinitis ◽

Negative Correlation ◽

Quantitative Polymerase Chain Reaction ◽

Allergic Airway Inflammation ◽

Serum Levels ◽

Significant Negative Correlation ◽

Enzyme Linked Immunosorbent Assay ◽

Th2 Cytokine ◽

Th2 Immune Response ◽

Th1 Cytokine

Background. Osteopontin (OPN) has been proved to be associated with allergic airway inflammation. However, the roles of OPN and its regulation in childhood allergic rhinitis (AR) are poorly understood.Objective. This study aims to evaluate the expression of OPN and miR-181a in children with AR and their association with Th1/Th2 immune response.Methods. Children who suffered from AR were included along with control subjects. Serum was collected to examine the level of OPN and Th1/Th2 cytokines by enzyme-linked immunosorbent assay (ELISA) and the level of miR-181a by quantitative polymerase chain reaction (qPCR).Results. Children with AR had significantly higher serum levels of OPN and lower serum levels of miR-181a than healthy controls. Furthermore, serum levels of OPN were positively correlated with Th2 cytokine and negatively correlated with Th1 cytokine. On the contrary, miR-181a level had a negative correlation with IL-4/IL-5 and positive correlation with IFN-γ/IL-12. More importantly, there was also significant negative correlation between OPN and miR-181a.Conclusion. The OPN protein and miR-181a levels may serve as predictors of disease severity in childhood AR and appear to be promising targets for modulating AR.

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Low Serum Tryptophan Levels as an Indicator of Global Cognitive Performance in Nondemented Women over 50 Years of Age

Oxidative Medicine and Cellular Longevity ◽

10.1155/2018/8604718 ◽

2018 ◽

Vol 2018 ◽

pp. 1-10 ◽

Cited By ~ 4

Author(s):

L. A. Ramos-Chávez ◽

G. Roldán-Roldán ◽

B. García-Juárez ◽

D. González-Esquivel ◽

G. Pérez de la Cruz ◽

...

Keyword(s):

Cognitive Impairment ◽

Negative Correlation ◽

Aging Process ◽

Depression Scale ◽

Positive Association ◽

Serum Levels ◽

Significant Negative Correlation ◽

Kynurenine Pathway ◽

Cognitive Screening ◽

Significant Positive Association

Aging is a physiological decline process. The number of older adults is growing around the world; therefore, the incidence of cognitive impairment, dementia, and other diseases related to aging increases. The main cellular factors that converge in the aging process are mitochondrial dysfunction, antioxidant impairment, inflammation, and immune response decline, among others. In this context, these cellular changes have an influence on the kynurenine pathway (KP), the main route of tryptophan (Trp) catabolism. KP metabolites have been involved in the aging process and neurodegenerative diseases. Although there are changes in the metabolite levels with age, at this time, there is no study that has evaluated cognitive decline as a consequence of Trp catabolism fluctuation in aging. The aim of this study was to evaluate the relation between the changes in Trp catabolism and cognitive impairment associated with age through KP metabolites level alterations in women over 50 years of age. Seventy-seven nondemented women over 50 years old were examined with a standardized cognitive screening evaluation in Spanish language (Neuropsi), Beck anxiety inventory (BAI), and the geriatric depression scale (GDS). Also, serum levels of Trp, kynurenine (Kyn), kynurenic acid (KYNA), and 3-hydroykynurenine (3-HK) and the glutathione ratio (GSH/GSSG) were measured. Results showed a negative correlation between age and Trp levels and a positive correlation between age and KYNA/Trp and 3-HK/Trp ratios. The level of cognitive impairment showed a significant positive association with age and with kynurenine pathway activation and a significant negative correlation with Trp levels. The GSH/GSSG ratio correlated positively with Trp levels and negatively with Kyn/Trp and 3-HK/Trp ratios. The depression score correlated negatively with Trp and positively with the 3-HK/Trp ratio. We concluded that KP activation increases with age and it is strongly associated with the level of cognition performance in nondemented women over 50 years of age.

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Serum Levels of the Adipokine Zinc-α2-glycoprotein Are Decreased in Patients with Hypertension

ISRN Endocrinology ◽

10.1155/2014/374090 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 14

Author(s):

Hui Juan Zhu ◽

Xiang qing Wang ◽

Hui Pan ◽

Feng ying Gong ◽

Dian xi Zhang ◽

...

Keyword(s):

Serum Levels ◽

Enzyme Linked Immunosorbent Assay ◽

Healthy Controls ◽

Weight Regulation ◽

Body Weight Regulation ◽

Decreased Levels of Serum IL-34 Associated with Cognitive Impairment in Vascular Dementia

BioMed Research International ◽

10.1155/2021/6793860 ◽

2021 ◽

Vol 2021 ◽

pp. 1-6

Author(s):

Yang Wang ◽

Wei Lu ◽

Wenjing Ning ◽

Yan Chen ◽

Lingxing Li

Keyword(s):

Blood Pressure ◽

Cognitive Impairment ◽

Vascular Dementia ◽

Fasting Blood Glucose ◽

White Blood Cells ◽

Enzyme Linked Immunosorbent Assay ◽

Healthy Controls ◽

Bivariate Correlation ◽

Significant Difference ◽

Demographic Features

Objective. Interleukin- (IL-) 34 is a new type of cytokine with neuroprotective effects discovered in recent years. However, the relationship between IL-34 and vascular dementia (VaD) has not yet been elucidated. The purpose of this study is to determine whether IL-34 is involved in cognitive impairment of VaD. Methods. From January 2017 to December 2020, 84 VaD patients and 60 healthy controls who attended Qingpu Branch of Zhongshan Hospital were prospectively included in the study. Once included in the study, demographic features of all research subjects are collected. They include age, gender, education, white blood cells (WBC), neutrophil, lymphocyte, systolic blood pressure (SBP), diastolic blood pressure (DBP), fasting blood glucose (FBG), triglycerides (TG), and total cholesterol (TC). Meanwhile, the Montreal Cognitive Assessment (MoCA) scale was used to assess the cognitive function of participants. The serum IL-34 level was determined by enzyme-linked immunosorbent assay (ELISA). Results. There was no significant difference between the demographic features of VaD patients and healthy controls ( p > 0.05 ). However, the serum IL-34 levels of VaD patients and healthy controls are 27.6 ± 3.9 pg / ml and 41.8 ± 6.0 pg / ml , respectively, and there is a significant statistical difference between them ( p < 0.001 ). The results of bivariate correlation analysis showed that serum IL-34 levels were significantly positively correlated with MoCA scores ( r = 0.371 , p = 0.023 ). Further regression analysis showed that IL-34 was still correlated with MoCA after adjusting for demographic features ( β = 0.276 , p = 0038 ). Conclusions. Serum IL-34 levels in VaD patients were significantly reduced, which may be an independent predictor of cognitive impairment in VaD patients.

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Intrathecal synthesis of matrix metalloproteinase-9 in patients with multiple sclerosis: implication for pathogenesis

Multiple Sclerosis Journal ◽

10.1191/1352458502ms800oa ◽

2002 ◽

Vol 8 (3) ◽

pp. 222-228 ◽

Cited By ~ 74

Author(s):

G M Liuzzi ◽

M Trojano ◽

M Fanelli ◽

C Avolio ◽

A Fasano ◽

...

Keyword(s):

Multiple Sclerosis ◽

Matrix Metalloproteinase ◽

Neurological Diseases ◽

Inverse Correlation ◽

Serum Levels ◽

Matrix Metalloproteinase 9 ◽

Enzyme Linked Immunosorbent Assay ◽

Intrathecal Synthesis ◽

Healthy Donors ◽

Metalloproteinase 9

Matrix metalloproteinase-9 (MMP-9) was detected by zymography and enzyme-linked immunosorbent assay (ELISA) in matched serum and cerebrospinal fluid (CSF) samples from patients with neurological diseases. Patients with relapsing-remitting multiple sclerosis (RR-MS) had serum and CSF MMP-9 levels comparable to those from patients with inflammatory neurological diseases (INDs), but higher than patients with non-inflammatory neurological diseases (NINDs) and healthy donors (HDs). MMP-9 increased in active RR-MS in comparison with inactive RR-MS implying that MMP-9 in MS is related with clinical disease activity. A correlation between the CSF/serum albumin (QAlb) and CSF/serum MMP-9 (QMMP-9) was observed in IND and NIND but not in RR-MS patients, indicating that CSF MMP-9 levels in NIND and IND patients could be influenced by serum MMP-9 and blood-brain barrier (BBB) permeability properties. MS patients had higher values of QMMP-9:QAlb (MMP-9 index) than IND and NIND patients suggesting that in MS the increase in CSF MMP-9 could be due to intrathecal synthesis of MMP-9. A significant inverse correlation was found between MMP-9 and its endogenous inhibitor TIMP-1 in RR-MS indicating that in MS patients both the increase in MMP-9 and the decrease in TIMP-1 serum levels could contribute to BBB disruption and T-lymphocyte entry into the CNS.

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Higher expression of monocyte chemotactic protein 1 in mild COVID-19 patients might be correlated with inhibition of Type I IFN signaling

Virology Journal ◽

10.1186/s12985-020-01478-9 ◽

2021 ◽

Vol 18 (1) ◽

Author(s):

Xueyan Xi ◽

Yang Guo ◽

Min Zhu ◽

Yuhui Wei ◽

Gang Li ◽

...

Keyword(s):

Chemokine Receptors ◽

Serum Levels ◽

Significant Negative Correlation ◽

Enzyme Linked Immunosorbent Assay ◽

Type I ◽

Monocyte Chemotactic Protein ◽

Chemotactic Protein ◽

Polymerase Chain

Abstract Background Chemokine levels in severe coronavirus disease 2019 (COVID-19) patients have been shown to be markedly elevated. But the role of chemokines in mild COVID-19 has not yet been established. According to the epidemiological statistics, most of the COVID-19 cases in Shiyan City, China, have been mild. The purpose of this study was to evaluate the level of chemokines in mild COVID-19 patients and explore the correlation between chemokines and host immune response. Methods In this study, we used an enzyme-linked immunosorbent assay to detect serum levels of chemokines in COVID-19 patients in Shiyan City. Expression of chemokine receptors and of other signaling molecules was measured by real-time polymerase chain reaction. Results We first demonstrated that COVID-19 patients, both sever and mild cases, are characterized by higher level of chemokines. Specifically, monocyte chemotactic protein 1 (MCP-1) is expressed at higher levels both in severe and mild cases of COVID-19. The receptor of MCP-1, C-C chemokine receptor type 2, was expressed at higher levels in mild COVID-19 patients. Finally, we observed a significant negative correlation between expression levels of interferon (IFN) regulatory factor 3 (IRF3) and serum levels of MCP-1 in mild COVID-19 patients. Conclusion Higher expression of MCP-1 in mild COVID-19 patients might be correlated with inhibition of IFN signaling. The finding adds to our understanding of the immunopathological mechanisms of severe acute respiratory syndrome coronavirus 2 infection and provides potential therapeutic targets and strategies.

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