1
|
Yamamoto EA, Koike S, Luther M, Dennis L, Lim MM, Raskind M, Pagulayan K, Iliff J, Peskind E, Piantino JA. Perivascular Space Burden and Cerebrospinal Fluid Biomarkers in US Veterans With Blast-Related Mild Traumatic Brain Injury. J Neurotrauma 2024; 41:1565-1577. [PMID: 38185848 DOI: 10.1089/neu.2023.0505] [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] [Indexed: 01/09/2024] Open
Abstract
Blast-related mild traumatic brain injury (mTBI) is recognized as the "signature injury" of the Iraq and Afghanistan wars. Sleep disruption, mTBI, and neuroinflammation have been individually linked to cerebral perivascular space (PVS) dilatation. Dilated PVSs are putative markers of impaired cerebrospinal fluid (CSF) and interstitial fluid exchange, which plays an important role in removing cerebral waste. The aim of this cross-sectional, retrospective study was to define associations between biomarkers of inflammation and MRI-visible PVS (MV-PVS) burden in Veterans after blast-related mTBI (blast-mTBI) and controls. The CSF and plasma inflammatory biomarker concentrations were compared between blast-mTBI and control groups and correlated with MV-PVS volume and number per white matter cm3. Multiple regression analyses were performed with inflammatory biomarkers as predictors and MV-PVS burden as the outcome. Correction for multiple comparisons was performed using the Banjamini-Hochberg method with a false discovery rate of 0.05. There were no group-wise differences in MV-PVS burden between Veterans with blast-mTBI and controls. Greater MV-PVS burden was significantly associated with higher concentrations of several proinflammatory biomarkers from CSF (i.e., eotaxin, MCP-1, IL-6, IL-8) and plasma (i.e., MCP-4, IL-13) in the blast-mTBI group only. After controlling for sleep time and symptoms of post-traumatic stress disorder, temporal MV-PVS burden remained significantly associated with higher CSF markers of inflammation in the blast-mTBI group only. These data support an association between central, rather than peripheral, neuroinflammation and MV-PVS burden in Veterans with blast-mTBI independent of sleep. Future studies should continue to explore the role of blast-mTBI related central inflammation in MV-PVS development, as well as investigate the impact of subclinical exposures on MV-PVS burden.
Collapse
Affiliation(s)
- Erin A Yamamoto
- Department of Neurological Surgery, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - Seiji Koike
- Biostatistics and Design Program, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - Madison Luther
- Department of Pediatrics, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - Laura Dennis
- Department of Pediatrics, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon, USA
| | - Miranda M Lim
- Veterans Affairs VISN20 Northwest MIRECC, VA Portland Health Care System, Portland, Oregon, USA
- Oregon Alzheimer's Disease Research Center, Department of Neurology, Oregon Health and Science University, Portland, OR, USA
- Veterans Affairs (V.A.) Northwest (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
| | - Murray Raskind
- Veterans Affairs (V.A.) Northwest (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
| | - Kathleen Pagulayan
- Veterans Affairs (V.A.) Northwest (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Rehabilitation Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Jeffrey Iliff
- Veterans Affairs (V.A.) Northwest (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
- Department of Neurology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Elaine Peskind
- Veterans Affairs (V.A.) Northwest (VISN 20) Mental Illness, Research, Education, and Clinical Center (MIRECC), Veterans Affairs Puget Sound Health Care System, Seattle, Washington, USA
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
| | - Juan A Piantino
- Department of Pediatrics, Division of Child Neurology, Doernbecher Children's Hospital, Oregon Health & Science University, Portland, Oregon, USA
| |
Collapse
|
2
|
He X, Yang W, Zhao Q, Qin X. Controlled oxidation and digestion of Pickering emulsions stabilized by quinoa protein and (-)-epigallocatechin-3-gallate (EGCG) hybrid particles. Int J Biol Macromol 2023; 253:126755. [PMID: 37678683 DOI: 10.1016/j.ijbiomac.2023.126755] [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: 04/17/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/09/2023]
Abstract
In this study, we prepared Pickering emulsions stabilized by quinoa protein isolate (QPI) and (-)-epigallocatechin-3-gallate (EGCG) non-covalent hybrid particles using ultrasonic emulsification technique and demonstrated lipid oxidation and in vitro digestion process of Pickering emulsions. The interaction forces between QPI and EGCG were characterized using fluorescence spectroscopy, isothermal titration calorimetry, and Fourier transform infrared spectroscopy. Results indicated that the non-covalent QPI/EGCG hybrid particles were formed mainly via hydrophobic interactions, hydrogen bonds, and electrostatic interactions at pH 5. Then, the QPI/EGCG non-covalent hybrid particles were applied to modify the Pickering emulsion with ultrasonic homogenization. The rheological experimental results showed that the energy storage modulus (G') was higher than the loss modulus (G″), indicating that the emulsion had solid-like properties. As a physical barrier, interfacial layer fabricated by antioxidant QPI/EGCG hybrid particles limited lipid oxidation at 60 °C for 15 days. At 37 °C, the QPI/EGCG hybrid particles stabilized Pickering emulsions with robust antioxidant interfacial structure limited the lipid digestion under simulated gastrointestinal tract (gastric, small intestine phases). Thus, EGCG and quinoa proteins were more resistant to free radical oxidation and gastrointestinal digestion with the assistance of ultrasound. It provides a basis for better development of food and drug delivery systems by fully utilizing the antioxidant properties of plant polyphenols.
Collapse
Affiliation(s)
- Xian He
- Department of Nutrition and Food Hygiene, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Wanshui Yang
- Department of Nutrition and Food Hygiene, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - Qihong Zhao
- Department of Nutrition and Food Hygiene, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei 230032, China.
| | - Xinsheng Qin
- Department of Nutrition and Food Hygiene, Center for Big Data and Population Health of IHM, School of Public Health, Anhui Medical University, Hefei 230032, China.
| |
Collapse
|
3
|
Vítků J, Hampl R. Steroid Conjugates and Their Physiological Role. Physiol Res 2023; 72:S317-S322. [PMID: 38116768 DOI: 10.33549/physiolres.935080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024] Open
Abstract
While there are hundreds of synthetic steroids conjugates with acids, sugars, proteins and other molecules, only two types of conjugates occur in living organisms, namely sulfates and glucuronides. Steroid glucuronidation in the human liver is the main mechanism controlling the levels and biological activity of unconjugated hormones, and glucuronides are their main excretion products. This process is generally irreversible. On the other hand, sulfates possess their own biological activity that differs from that of the unconjugated steroid, emphasizing the importance of steroid sulfatases and sulfotransferases. Due to their negative charge, steroid sulfates cannot cross the blood-cell barrier and have to use transporters. Their efflux is mediated by specific transporters of the ATP binding cassette protein group, which thus are further factors controlling their physiological effects. Steroid sulfates, especially dehydroepiandrosterone sulfate (DHEAS) are neuroactive steroids, with well-known effects as allosteric modulators of some neurotransmitter receptors, functioning as ion channels, such as gamma-aminobutyric acid, type A (GABAA) receptors or N-methyl-D-aspartate (NMDA) receptors. In this minireview, we highlight some recent findings of non-genomic steroid sulfate actions through specific G-protein coupled receptors (GPCR), which we believe show the way of further research. A few studies have even indicated that sulfates such as DHEAS may even indirectly regulate gene expression via ligand binding to the membrane receptor and, through G-protein and second messenger formation, activate proteins like cAMP Regulated Elements Binding protein (CREB), which then binds to regulated DNA elements of the expressed gene, in a "classical" genomic effect.
Collapse
Affiliation(s)
- J Vítků
- Department of Steroids and Proteofactors, Institute of Endocrinology, Prague, Czech Republic.
| | | |
Collapse
|
4
|
Delaby C, Hirtz C, Lehmann S. Overview of the blood biomarkers in Alzheimer's disease: Promises and challenges. Rev Neurol (Paris) 2023; 179:161-172. [PMID: 36371265 DOI: 10.1016/j.neurol.2022.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/11/2022]
Abstract
The increasing number of people with advanced Alzheimer's disease (AD) represents a significant psychological and financial cost to the world population. Accurate detection of the earliest phase of preclinical AD is of major importance for the success of preventive and therapeutic strategies (Cullen et al., 2021). Advances in analytical techniques have been essential for the development of sensitive, specific and reliable diagnostic tests for AD biomarkers in biological fluids (cerebrospinal fluid and blood). Blood biomarkers hold promising potential for early and minimally invasive detection of AD, but also for differential diagnosis of dementia and for monitoring the course of the disease. The aim of this review is to provide an overview of current blood biomarkers of AD, from tau proteins and amyloid peptides to biomarkers of neuronal degeneration and inflammation, reactive and metabolic factors. We thus discuss the informative value of currently candidate blood biomarkers and their potential to be integrated into clinical practice for the management of AD in the near future.
Collapse
Affiliation(s)
- C Delaby
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France; Hospital de la Santa Creu i Sant Pau - Biomedical Research Institute Sant Pau - Universitat Autònoma de Barcelona, Barcelona, Spain
| | - C Hirtz
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France
| | - S Lehmann
- LBPC-PPC, Université Montpellier, CHU Montpellier, INM Inserm, Montpellier, France.
| |
Collapse
|