1
|
Wang S, Li D, Wang Y, Lu L, Hu X, Wang W. L-shaped association between serum chloride levels with 90-day and 365-day all-cause mortality in critically ill patients with COPD: a retrospective cohort study. Sci Rep 2024; 14:15900. [PMID: 38987379 DOI: 10.1038/s41598-024-67008-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 07/08/2024] [Indexed: 07/12/2024] Open
Abstract
This study aimed to investigate the association between serum chloride levels and all-cause mortality in critically ill patients with chronic obstructive pulmonary disease (COPD). Data from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database were extracted for analysis. Demographic information, laboratory results, medical histories, vital signs, and prognosis-related data were collected. Cox proportional hazard models were used to assess the relationship between serum chloride levels and 90-day and 365-day mortality. Subgroup analyses were conducted to explore potential interactions between serum chloride levels and various factors. The study included patients with a median age of 72.00 years, of whom 52.39% were male. Higher quartiles of serum chloride levels were associated with significantly lower levels of weight, RBC, platelet, hemoglobin, and other variables (P < 0.05), accompanied by lower 90-day and 365-day mortality (P < 0.05). Cox proportional hazard model indicated that the risk of death was significantly lower in the fourth quartile of serum chloride levels compared with the first quartile after adjusting for confounders (90-day HR = 0.54, 365-day HR = 0.52, both P < 0.05). An L-shape relationship was observed, with risks of death decreasing as serum chloride levels increased, although the magnitude decreased when levels reached 102 mmol/L. This study demonstrated an independent L-shaped association between serum chloride levels and all-cause mortality in critically ill patients with COPD. This finding helps us to understand the prognostic value of serum chloride levels in critically ill patients with COPD.
Collapse
Affiliation(s)
- Shidong Wang
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China
| | - Dai Li
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China
| | - Yaokun Wang
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China
| | - Linmin Lu
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China
| | - Xiaoyan Hu
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China
| | - Weibiao Wang
- Department of Respiratory Medicine, Shaoxing Second Hospital, Zhejiang, China.
| |
Collapse
|
2
|
Sternke-Hoffmann R, Sun X, Menzel A, Pinto MDS, Venclovaite U, Wördehoff M, Hoyer W, Zheng W, Luo J. Phase Separation and Aggregation of α-Synuclein Diverge at Different Salt Conditions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2308279. [PMID: 38973194 DOI: 10.1002/advs.202308279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 05/27/2024] [Indexed: 07/09/2024]
Abstract
The coacervation of alpha-synuclein (αSyn) into cytotoxic oligomers and amyloid fibrils are considered pathological hallmarks of Parkinson's disease. While aggregation is central to amyloid diseases, liquid-liquid phase separation (LLPS) and its interplay with aggregation have gained increasing interest. Previous work shows that factors promoting or inhibiting aggregation have similar effects on LLPS. This study provides a detailed scanning of a wide range of parameters, including protein, salt and crowding concentrations at multiple pH values, revealing different salt dependencies of aggregation and LLPS. The influence of salt on aggregation under crowding conditions follows a non-monotonic pattern, showing increased effects at medium salt concentrations. This behavior can be elucidated through a combination of electrostatic screening and salting-out effects on the intramolecular interactions between the N-terminal and C-terminal regions of αSyn. By contrast, this study finds a monotonic salt dependence of LLPS due to intermolecular interactions. Furthermore, it observes time evolution of the two distinct assembly states, with macroscopic fibrillar-like bundles initially forming at medium salt concentration but subsequently converting into droplets after prolonged incubation. The droplet state is therefore capable of inhibiting aggregation or even dissolving aggregates through heterotypic interactions, thus preventing αSyn from its dynamically arrested state.
Collapse
Affiliation(s)
- Rebecca Sternke-Hoffmann
- Center for Life Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Xun Sun
- Center for Life Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Andreas Menzel
- Center for Photon Science, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Miriam Dos Santos Pinto
- Center for Life Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Urte Venclovaite
- Center for Life Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Michael Wördehoff
- Institut für Physikalische Biologie, Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Wolfgang Hoyer
- Institut für Physikalische Biologie, Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Wenwei Zheng
- College of Integrative Sciences and Arts, Arizona State University, Mesa, AZ, 85212, USA
| | - Jinghui Luo
- Center for Life Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| |
Collapse
|
3
|
Zhou X, Zhao J, Liu Y, Sun X, Li X, Ren J, Li Q, Han D, Pan T, Shi Y, Wu D, Chen X. Association between serum potassium and Parkinson's disease in the US (NHANES 2005-2020). Front Neurosci 2024; 18:1387266. [PMID: 38784091 PMCID: PMC11111918 DOI: 10.3389/fnins.2024.1387266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Background Evaluating the correlation between serum potassium and Parkinson's disease (PD) in US adults. Methods A cross-sectional study was conducted on 20,495 adults aged 40 years or older using NHANES data from 2005 to 2020. The study utilized one-way logistic regression and multifactorial logistic regression to examine the correlation between serum potassium levels and PD. Additionally, a smoothed curve fitting approach was employed to assess the concentration-response relationship between serum potassium and PD. Stratified analyses were carried out to investigate potential interactions between serum potassium levels and PD with variables such as age, sex, race, marital status, education, BMI, smoking and medical conditions like coronary, stroke, diabetes, hypertension, and hypercholesterolemia. Results In this study, a total of 20,495 participants, comprising 403 PD and 20,092 non-PD individuals, were included. After adjusted for covariates, multivariable logistic regression revealed that high serum potassium level was an independent risk factor for PD (OR:1.86, 95% CI:1.45 ~ 2.39, p < 0.01).The linear association between serum potassium and PD was described using fitted smoothing curves. Age, sex, race, education, marital, BMI, coronary, stroke, diabetes, hypertension and hypercholesterolemia were not significantly correlated with this positive connection, according to subgroup analysis and interaction testing (P for interaction >0.05). Conclusion Serum potassium levels are elevated in patients with Parkinson's disease compared to non-PD patients. Additional prospective studies are required to explore the significance of serum potassium levels in individuals with Parkinson's disease.
Collapse
Affiliation(s)
- Xue Zhou
- Changchun University of Chinese Medicine, Changchun, China
| | | | - Yang Liu
- Changchun University of Chinese Medicine, Changchun, China
| | - Xiaozhou Sun
- Center of Children's Clinic, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Xuefeng Li
- Changchun University of Chinese Medicine, Changchun, China
| | - Jixiang Ren
- The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Qingjie Li
- The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Dong Han
- Changchun University of Chinese Medicine, Changchun, China
| | - Ting Pan
- The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Yingqi Shi
- Changchun University of Chinese Medicine, Changchun, China
| | - Dalong Wu
- The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| | - Xinhua Chen
- The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
| |
Collapse
|
4
|
Sternke-Hoffmann R, Sun X, Menzel A, Pinto MDS, Venclovaitė U, Wördehoff M, Hoyer W, Zheng W, Luo J. Phase Separation and Aggregation of α-Synuclein Diverge at Different Salt Conditions. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.01.582895. [PMID: 38464093 PMCID: PMC10925286 DOI: 10.1101/2024.03.01.582895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The coacervation and structural rearrangement of the protein alpha-synuclein (αSyn) into cytotoxic oligomers and amyloid fibrils are considered pathological hallmarks of Parkinson's disease. While aggregation is recognized as the key element of amyloid diseases, liquid-liquid phase separation (LLPS) and its interplay with aggregation have gained increasing interest. Previous work showed that factors promoting or inhibiting amyloid formation have similar effects on phase separation. Here, we provide a detailed scanning of a wide range of parameters including protein, salt and crowding concentrations at multiple pH values, revealing different salt dependencies of aggregation and phase separation. The influence of salt on aggregation under crowded conditions follows a non-monotonic pattern, showing increased effects at medium salt concentrations. This behavior can be elucidated through a combination of electrostatic screening and salting-out effects on the intramolecular interactions between the N-terminal and C-terminal regions of αSyn. By contrast, we find a monotonic salt dependence of phase separation due to the intermolecular interaction. Furthermore, we observe the time evolution of the two distinct assembly states, with macroscopic fibrillar-like bundles initially forming at medium salt concentration but subsequently converting into droplets after prolonged incubation. The droplet state is therefore capable of inhibiting aggregation or even dissolving the aggregates through a variety of heterotypic interactions, thus preventing αSyn from its dynamically arrested state.
Collapse
Affiliation(s)
- Rebecca Sternke-Hoffmann
- Department of Biology and Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Xun Sun
- Department of Biology and Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Andreas Menzel
- Photon Science Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Miriam Dos Santos Pinto
- Department of Biology and Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Urtė Venclovaitė
- Department of Biology and Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Michael Wördehoff
- Institut für Physikalische Biologie, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Wolfgang Hoyer
- Institut für Physikalische Biologie, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Wenwei Zheng
- College of Integrative Sciences and Arts, Arizona State University, Mesa, AZ, 85212, United States
| | - Jinghui Luo
- Department of Biology and Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| |
Collapse
|
5
|
Abdik E, Çakır T. Transcriptome-based biomarker prediction for Parkinson's disease using genome-scale metabolic modeling. Sci Rep 2024; 14:585. [PMID: 38182712 PMCID: PMC10770157 DOI: 10.1038/s41598-023-51034-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/29/2023] [Indexed: 01/07/2024] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease in the world. Identification of PD biomarkers is crucial for early diagnosis and to develop target-based therapeutic agents. Integrative analysis of genome-scale metabolic models (GEMs) and omics data provides a computational approach for the prediction of metabolite biomarkers. Here, we applied the TIMBR (Transcriptionally Inferred Metabolic Biomarker Response) algorithm and two modified versions of TIMBR to investigate potential metabolite biomarkers for PD. To this end, we mapped thirteen post-mortem PD transcriptome datasets from the substantia nigra region onto Human-GEM. We considered a metabolite as a candidate biomarker if its production was predicted to be more efficient by a TIMBR-family algorithm in control or PD case for the majority of the datasets. Different metrics based on well-known PD-related metabolite alterations, PD-associated pathways, and a list of 25 high-confidence PD metabolite biomarkers compiled from the literature were used to compare the prediction performance of the three algorithms tested. The modified algorithm with the highest prediction power based on the metrics was called TAMBOOR, TrAnscriptome-based Metabolite Biomarkers by On-Off Reactions, which was introduced for the first time in this study. TAMBOOR performed better in terms of capturing well-known pathway alterations and metabolite secretion changes in PD. Therefore, our tool has a strong potential to be used for the prediction of novel diagnostic biomarkers for human diseases.
Collapse
Affiliation(s)
- Ecehan Abdik
- Department of Bioengineering, Gebze Technical University, Kocaeli, Turkey
| | - Tunahan Çakır
- Department of Bioengineering, Gebze Technical University, Kocaeli, Turkey.
| |
Collapse
|
6
|
Singh Y, Trautwein C, Romani J, Salker MS, Neckel PH, Fraccaroli I, Abeditashi M, Woerner N, Admard J, Dhariwal A, Dueholm MKD, Schäfer KH, Lang F, Otzen DE, Lashuel HA, Riess O, Casadei N. Overexpression of human alpha-Synuclein leads to dysregulated microbiome/metabolites with ageing in a rat model of Parkinson disease. Mol Neurodegener 2023; 18:44. [PMID: 37403161 DOI: 10.1186/s13024-023-00628-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 05/24/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Braak's hypothesis states that sporadic Parkinson's disease (PD) follows a specific progression of pathology from the peripheral to the central nervous system, and this progression can be monitored by detecting the accumulation of alpha-Synuclein (α-Syn) protein. Consequently, there is growing interest in understanding how the gut (commensal) microbiome can regulate α-Syn accumulation, as this could potentially lead to PD. METHODS We used 16S rRNA and shotgun sequencing to characterise microbial diversity. 1H-NMR was employed to understand the metabolite production and intestinal inflammation estimated using ELISA and RNA-sequencing from feces and the intestinal epithelial layer respectively. The Na+ channel current and gut permeability were measured using an Ussing chamber. Immunohistochemistry and immunofluorescence imaging were applied to detect the α-Syn protein. LC-MS/MS was used for characterization of proteins from metabolite treated neuronal cells. Finally, Metascape and Ingenuity Pathway Analysis (IPA) bioinformatics tools were used for identification of dysregulated pathways. RESULTS We studied a transgenic (TG) rat model overexpressing the human SNCA gene and found that a progressive gut microbial composition alteration characterized by the reduction of Firmicutes to Bacteroidetes ratio could be detected in the young TG rats. Interestingly, this ratio then increased with ageing. The dynamics of Lactobacillus and Alistipes were monitored and reduced Lactobacillus and increased Alistipes abundance was discerned in ageing TG rats. Additionally, the SNCA gene overexpression resulted in gut α-Syn protein expression and increased with advanced age. Further, older TG animals had increased intestinal inflammation, decreased Na+ current and a robust alteration in metabolite production characterized by the increase of succinate levels in feces and serum. Manipulation of the gut bacteria by short-term antibiotic cocktail treatment revealed a complete loss of short-chain fatty acids and a reduction in succinate levels. Although antibiotic cocktail treatment did not change α-Syn expression in the enteric nervous system of the colon, however, reduced α-Syn expression was detected in the olfactory bulbs (forebrain) of the TG rats. CONCLUSION Our data emphasize that the gut microbiome dysbiosis synchronous with ageing leads to a specific alteration of gut metabolites and can be modulated by antibiotics which may affect PD pathology.
Collapse
Affiliation(s)
- Yogesh Singh
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
- Research Institute of Women's Health, University of Tübingen, Calwerstaße 7/6, 72076, Tübingen, Germany.
| | - Christoph Trautwein
- Werner Siemens Imaging Centre (WSIC), Department of Preclinical Imaging and Radiopharmacy, University of Tübingen, Röntgenweg 13, 72076, Tübingen, Germany
| | - Joan Romani
- School of Life Sciences, Institute of Bioengineering, Laboratory of Molecular and Chemical Biology of Neurodegeneration, École Polytechnique Fédérale de Lausanne (EPFL), SV LMNN Station 19, 1015 CH, Lausanne, Switzerland
| | - Madhuri S Salker
- Research Institute of Women's Health, University of Tübingen, Calwerstaße 7/6, 72076, Tübingen, Germany
| | - Peter H Neckel
- Institute of Clinical Anatomy and Cell Analysis, University of Tübingen, Österbergstraße 3, 72074, Tübingen, Germany
| | - Isabel Fraccaroli
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany
| | - Mahkameh Abeditashi
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany
| | - Nils Woerner
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany
| | - Jakob Admard
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany
| | - Achal Dhariwal
- Institute of Oral Biology, University of Oslo, Sognsvannsveien 10, 0316, Oslo, Norway
| | - Morten K D Dueholm
- Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, 9220, Aalborg, Denmark
| | - Karl-Herbert Schäfer
- Enteric Nervous System Working Group, University of Applied Sciences Kaiserslautern, Zweibrücken Campus, Amerikastrasse 1, 66482, Zweibrücken, Germany
| | - Florian Lang
- Institute of Vegetative Physiology, University of Tübingen, Wilhelmstaße 56, 72074, Tübingen, Germany
| | - Daniel E Otzen
- Interdisciplinary Naonscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000, Aarhus C, Denmark
| | - Hilal A Lashuel
- School of Life Sciences, Institute of Bioengineering, Laboratory of Molecular and Chemical Biology of Neurodegeneration, École Polytechnique Fédérale de Lausanne (EPFL), SV LMNN Station 19, 1015 CH, Lausanne, Switzerland
| | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
| | - Nicolas Casadei
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
- NGS Competence Centre Tübingen (NCCT), University of Tübingen, Calwerstaße 7, 72076, Tübingen, Germany.
| |
Collapse
|
7
|
Kang MS, Lee GH, Yang MJ, Sung MC, Han HY, Lee BS, Baek B, Kim DW, Park EJ. Comparison of toxicity and cellular responses following pulmonary exposure to different types of nanofibers. Nanotoxicology 2022; 16:935-954. [PMID: 36803397 DOI: 10.1080/17435390.2023.2177205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Pulmonary effects of inhaled microfibers are an emerging public health concern. In this study, we investigated toxicity following pulmonary exposure to synthetic polyethylene oxide fibroin (PEONF) and silk fibroin (SFNF) nanofibers and the cellular responses. When instilled intratracheally weekly for four weeks, body weight gain was significantly reduced in female mice exposed to the higher dose of SFNF when compared with the control group. The total number of cells in the lungs was more significant in all treated groups than in the control, whereas the relative portion of neutrophils and eosinophils increased significantly only in female mice exposed to SFNF. Both types of nanofibers induced notable pathological changes and increased pulmonary expression of MCP-1α, CXCL1, and TGF-β. More importantly, blood calcium, creatinine kinase, sodium, and chloride concentration were affected significantly, showing sex- and material-dependent differences. The relative portion of eosinophils increased only in SFNF-treated mice. In addition, both types of nanofibers induced necrotic and late apoptotic cell death in alveolar macrophages after 24 h of exposure, with accompanying oxidative stress, increased NO production, cell membrane rupture, intracellular organelle damage, and intracellular calcium accumulation. Additionally, multinucleated giant cells were formed in cells exposed to PEONF or SFNF. Taken together, the findings indicate that inhaled PEONF and SFNF may cause systemic adverse health effects with lung tissue damage, showing differences by sex- and material. Furthermore, PEONF- and SFNF-induced inflammatory response may be partly due to the low clearance of dead (or damaged) pulmonary cells and the excellent durability of PEONF and SFNF.
Collapse
Affiliation(s)
- Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, South Korea.,Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, South Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, South Korea
| | - Myeong-Chang Sung
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | | | | | - Bosung Baek
- Graduate School of Medicine, Kyung Hee University, Seoul, South Korea.,Toxicity Evaluation Center, Keyprime Research Company, Cheongju, South Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Eun-Jung Park
- Graduate School of Medicine, Kyung Hee University, Seoul, South Korea.,Human Health and Environmental Toxins Research Center, Kyung Hee University, Seoul, South Korea
| |
Collapse
|
8
|
Xiao X, Li C, Liu Y, Feng Y, Han K, Xiang H, Shi G, Gu H. A ratiometric electrochemical microsensor for monitoring chloride ions in vivo. Analyst 2021; 146:6202-6210. [PMID: 34519726 DOI: 10.1039/d1an01370j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Chloride ion (Cl-), the most common anion in animal brain, has been verified to play a vital role in maintaining normal physiological processes. Thus, development of a reliable platform to determine Cl- is of great significance for brain research involving Cl-. In this work, a ratiometric electrochemical microsensor (REM) for the in vivo measurement of cerebral Cl- was designed. To prepare REM, uniform Ag nanoparticles (Ag NPs) with nano-level sizes were synthesized via an adsorption-reduction process, which served as selective recognition elements for Cl- determination, while methylene blue (MB) was absorbed and acted as an inner reference unit to avoid the environmental interference of complicated brain systems. As a result, this developed REM exhibited high sensitivity and selectivity, as well as good stability, reproducibility and anti-biofouling. This reliable approach was established to monitor Cl- in mouse brain.
Collapse
Affiliation(s)
- Xia Xiao
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Chenchen Li
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Yuzhi Liu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Yaqian Feng
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| | - Kai Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Haoyue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China.
| | - Guoyue Shi
- Lab of Biochemical Sensing Technology, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Hui Gu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China.
| |
Collapse
|
9
|
Li C, Zhuo Y, Xiao X, Li S, Han K, Lu M, Zhang J, Chen S, Gu H. Facile Electrochemical Microbiosensor Based on In Situ Self-Assembly of Ag Nanoparticles Coated on Ti 3C 2T x for In Vivo Measurements of Chloride Ions in the PD Mouse Brain. Anal Chem 2021; 93:7647-7656. [PMID: 34014093 DOI: 10.1021/acs.analchem.1c00342] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chloride ion (Cl-), one of the most important anions in the brain, has been confirmed to participate in the pathological process of Parkinson's disease (PD). As such, the development of a reliable method for in vivo measurements of Cl- is extremely appealing, especially for understanding the pathogenesis of PD. We herein designed a facile electrochemical microbiosensor (ECMB), based on in situ self-assembly of Ag nanoparticles (Ag NPs) coated on Ti3C2Tx. The uniform nanosized Ag NPs were reduced by Ti3C2Tx by a simple dipping process, endowing the ECMB with excellent specificity toward Cl- detection and remarkably reproducible preparation process. Meanwhile, electro-oxidized graphene oxide was introduced as an inner reference, thus avoiding the environmental interference of the complicated brain systems to increase the determination accuracy. An extensive in vitro study revealed that the proposed ECMB would be a robust candidate for real-time monitoring of Cl- in the PD mouse brain with high selectivity, accuracy, and reproducibility. Moreover, the availability and reliability toward in vivo Cl- monitoring of the designed ECMB were well confirmed by comparing with the standard Volhard's method. Finally, by virtue of the successful employment of the developed detecting platform in the in vivo measurement of Cl- in the PD mouse brain, systematic analysis and comparison of the average levels of Cl- in the three regions including cortex, striatum, and hippocampus of brains from normal and PD model mice have been achieved.
Collapse
Affiliation(s)
- Chenchen Li
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Yi Zhuo
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, Hunan Provincical Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Xia Xiao
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Shuangfu Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Kai Han
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P. R. China
| | - Ming Lu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, Hunan Provincical Key Laboratory of Neurorestoratology, College of Life Sciences, Hunan Normal University, Changsha, Hunan 410006, P. R. China
| | - Jiaxin Zhang
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Shu Chen
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| | - Hui Gu
- A Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, P. R. China
| |
Collapse
|
10
|
Zhang Y, Li C, Huang L, Shen X, Zhao F, Wu C, Yan S. Relationship between Hyponatremia and Peripheral Neuropathy in Patients with Diabetes. J Diabetes Res 2021; 2021:9012887. [PMID: 34458375 PMCID: PMC8397566 DOI: 10.1155/2021/9012887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/15/2021] [Accepted: 08/04/2021] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES Hyponatremia is a common complication of diabetes. However, the relationship between serum sodium level and diabetic peripheral neuropathy (DPN) is unknown. This study was aimed at investigating the relationship between low serum sodium level and DPN in Chinese patients with type 2 diabetes mellitus. METHODS A retrospective study was performed on 1928 patients with type 2 diabetes between 2010 and 2018. The multivariate test was used to analyze the relationship between the serum sodium level and the nerve conduction function. A restricted cubic spline was used to flexibly model and visualize the relationship between the serum sodium level and DPN, followed by logistic regression with adjustment. RESULTS As the serum sodium level increased, the prevalence of DPN had a reverse J-curve distribution with the serum sodium levels (69.6%, 53.7%, 49.6%, 43.9%, and 49.7%; P = 0.001). Significant differences existed between the serum sodium level and the motor nerve conduction velocity, sensory nerve conduction velocity, part of compound muscle action potential, and sensory nerve action potential of the participants. Compared with hyponatremia, the higher serum sodium level was a relative lower risk factor for DPN after adjusting for several potential confounders (OR = 0.430, 95%CI = 0.220-0.841; OR = 0.386, 95%CI = 0.198-0.755; OR = 0.297, 95%CI = 0.152-0.580; OR = 0.376, 95%CI = 0.190-0.743; all P < 0.05). Compared with low-normal serum sodium groups, the high-normal serum sodium level was also a risk factor for DPN (OR = 0.690, 95%CI = 0.526-0.905, P = 0.007). This relationship was particularly apparent in male participants, those aged <65 years, those with a duration of diabetes of <10 years, and those with a urinary albumin - to - creatinine ratio (UACR) < 30 mg/g. CONCLUSIONS Low serum sodium levels were independently associated with DPN, even within the normal range of the serum sodium. We should pay more attention to avoid the low serum sodium level in patients with type 2 diabetes mellitus.
Collapse
Affiliation(s)
- Yongze Zhang
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Chuanchuan Li
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Lingning Huang
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Ximei Shen
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Fengying Zhao
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Cailin Wu
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| | - Sunjie Yan
- Department of Endocrinology, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Fujian Province Clinical Research Center for Metabolic Diseases, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Diabetes Research Institute of Fujian Province, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
- Metabolic Diseases Research Institute, The First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Fuzhou, Fujian 350005, China
| |
Collapse
|
11
|
Meléndez-Flores JD, Estrada-Bellmann I. Linking chronic kidney disease and Parkinson's disease: a literature review. Metab Brain Dis 2021; 36:1-12. [PMID: 32990929 DOI: 10.1007/s11011-020-00623-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
Abstract
Chronic kidney disease (CKD) has been typically implicated in cardiovascular risk, considering the function the kidney has related to blood pressure, vitamin D, red blood cell metabolism, and electrolyte and acid-base regulation. However, neurological consequences are also attributed to this disease. Among these, recent large epidemiological studies have demonstrated an increased risk for Parkinson's disease (PD) in patients with CKD. Multiple studies have evaluated individually the association of blood pressure, vitamin D, and red blood cell dysmetabolism with PD, however, no study has reviewed the potential mechanisms related to these components in context of CKD and PD. In this review, we explored the association of CKD and PD and linked the components of the former to propose potential pathways explaining a future increased risk for PD, where renin-angiotensin system, oxidative stress, and inflammation have a main role. Potential preventive and therapeutic interventions based on these associations are also explored. More preclinical studies are needed to confirm the potential link of CKD conditions and future PD risk, whereas more interventional studies targeting this association are warranted to confirm their potential benefit in PD.
Collapse
Affiliation(s)
- Jesús D Meléndez-Flores
- Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos S/N, 64700, Monterrey, NL, Mexico
- Faculty of Medicine, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Ingrid Estrada-Bellmann
- Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos S/N, 64700, Monterrey, NL, Mexico.
- Movement Disorders Clinic, Neurology Division, Internal Medicine Department, University Hospital "Dr. José E. González", Universidad Autónoma de Nuevo León, Monterrey, Mexico.
| |
Collapse
|
12
|
Figueroa CA, Bajgain P, Stohn JP, Hernandez A, Brooks DJ, Houseknecht KL, Rosen CJ. Deletion of α-Synuclein in Prrx1-positive cells causes partial loss of function in the central nervous system (CNS) but does not affect ovariectomy induced bone loss. Bone 2020; 137:115428. [PMID: 32417536 PMCID: PMC8260189 DOI: 10.1016/j.bone.2020.115428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/04/2020] [Accepted: 05/12/2020] [Indexed: 12/19/2022]
Abstract
α-Synuclein is a small 140 amino acid polypeptide encoded by the Snca gene that is highly expressed in neural tissue, but it is also found in osteoblasts, erythroblasts, macrophages, and adipose tissue. Previously, using co-expression network analysis we found that Snca was a key regulator of skeletal homeostasis, and its deletion partially prevented bone loss after ovariectomy (OVX). Here we tested the hypothesis that Snca deletion in mesenchymal progenitors using the Prrx1Cre (Prrx1, Paired-related homeobox 1) limb enhancer would protect bone mass after OVX. Prrx1Cre;Sncafl/fl and littermate controls (Sncafl/fl) were sham operated or ovariectomized (OVX) at 8 weeks of age and sacrificed at 20 weeks. Independently, eight-week female and male Prrx1Cre;Sncafl/fl mice and littermate controls were administered a high fat (60% fat) or low fat (10% fat) diet for 15 weeks. Bone loss was not prevented in either genotype after ovariectomy, but the Prrx1Cre;Sncafl/fl. mice were partially protected from weight gain after OVX and high fat diet (HFD). Serum catecholamine levels were lower in the Prrx1Cre;Sncafl/fl both on a low fat diet (LFD) and HFD versus fl/fl controls. Importantly, mutant mice exhibited a number of physical and behavioral phenotypes that were associated with conditional deletion of Snca in several brain regions. Cells labeled with Prrx1 were noted throughout the central nervous system (CNS). These data support earlier preliminary reports of Prrx1 expression in neural progenitors, and raise a cautionary note about the evaluation of skeletal and body composition phenotypes when using this Cre driver to study osteoprogenitor development.
Collapse
Affiliation(s)
| | - Pratima Bajgain
- Maine Medical Center Research Institute, MMCRI, Scarborough, ME, USA..
| | - J Patrizia Stohn
- Maine Medical Center Research Institute, MMCRI, Scarborough, ME, USA..
| | - Arturo Hernandez
- Maine Medical Center Research Institute, MMCRI, Scarborough, ME, USA..
| | - Daniel J Brooks
- Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, Boston, MA.
| | - Karen L Houseknecht
- Department of Biomedical Sciences, College of Osteopathic Medicine, University of New England, Biddeford, ME, USA..
| | - Clifford J Rosen
- Maine Medical Center Research Institute, MMCRI, Scarborough, ME, USA..
| |
Collapse
|
13
|
Mao CJ, Zhong CK, Yang Y, Yang YP, Wang F, Chen J, Zhang JR, Zhang HJ, Jin H, Xu LL, Huang JY, Liu CF. Serum sodium and chloride are inversely associated with dyskinesia in Parkinson's disease patients. Brain Behav 2017; 7:e00867. [PMID: 29299386 PMCID: PMC5745246 DOI: 10.1002/brb3.867] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 09/25/2017] [Accepted: 09/30/2017] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE We aim to report and evaluate the associations between serum sodium and chloride and dyskinesia in patients with Parkinson's disease. One hundred and two patients with Parkinson's disease were enrolled in this study. METHODS Patients' serum electrolytes including sodium, calcium, potassium, magnesium, and chloride were measured. Other demographic information was collected, and Unified Parkinson's disease rating scale and Hoehn and Yahr stage scale were also performed. RESULTS Patients with dyskinesia tended to have longer duration of disease, higher daily levodopa-equivalent dose, and Hoehn-Yahr stage, with lower serum sodium than those without dyskinesia. Spearman correlation analyses showed that serum sodium inversely correlated with duration of disease (r = -.218, p = .028), and positively correlated with serum chloride levels (r = .565, p < .001). Univariate logistic regression analysis found that duration of disease, daily levodopa-equivalent dose, serum sodium, and serum chloride were associated with dyskinesia in Parkinson's disease patients (p < .05 for all). After adjusting for age, sex, age at onset of Parkinson's disease, medical history, and other covariates, serum sodium and chloride were still associated with dyskinesia, with corresponding Odd ratios 0.783 (95% confidence intervals, 0.642-0.955) and 0.796 (95% confidence intervals, 0.652-0.972), respectively. CONCLUSION Our findings indicated that serum sodium and chloride levels were inversely associated with dyskinesia in patients with Parkinson's disease. Further studies with large samples and range of serum sodium and chloride are needed.
Collapse
Affiliation(s)
- Cheng-Jie Mao
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Chong-Ke Zhong
- Department of Epidemiology School of Public Health Medical College of Soochow University Suzhou China
| | - Yong Yang
- Clinical Laboratory The Second Affiliated Hospital of Soochow University Suzhou China
| | - Ya-Ping Yang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Fen Wang
- Institute of Neuroscience Soochow University Suzhou China
| | - Jing Chen
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Jin-Ru Zhang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Hui-Jun Zhang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Hong Jin
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Ling-Li Xu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Juan-Ying Huang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China
| | - Chun-Feng Liu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Diseasethe Second Affiliated Hospital of Soochow University Suzhou China.,Institute of Neuroscience Soochow University Suzhou China
| |
Collapse
|