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Agudelo C, Ramos AR, Gardener H, Cheung K, Elkind MSV, Sacco RL, Rundek T. Sleep Duration Is Associated With Subclinical Carotid Plaque Burden. Stroke 2023; 54:2347-2355. [PMID: 37470161 PMCID: PMC10527503 DOI: 10.1161/strokeaha.122.041967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/06/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Sleep duration is associated with stroke risk and is 1 of 8 essential components of cardiovascular health according to the American Heart Association. As stroke disproportionately burdens Black and Hispanic populations in the United States, we hypothesized that long and short sleep duration would be associated with greater subclinical carotid atherosclerosis, a precursor of stroke, in the racially and ethnically diverse NOMAS (Northern Manhattan Study). METHODS NOMAS is a study of community-dwelling adults. Self-reported nightly sleep duration and daytime sleepiness were collected between 2006 and 2011. Carotid plaque presence, total plaque area, and intima-media thickness were measured by ultrasound between 1999 and 2008. Linear and logistic regression models examined the cross-sectional associations of sleep duration groups (primary exposure) or daytime sleepiness (secondary exposure) with measures of carotid atherosclerosis. Models adjusted for age, time between ultrasound and sleep data collection, sex, race and ethnicity, education, health insurance, smoking, alcohol use, physical activity, body mass index, hypertension, diabetes, hypercholesterolemia, and cardiac disease. RESULTS The sample (n=1553) had a mean age of 64.7±8.5 years and was 61.9% female, 64.8% Hispanic, and 18.2% non-Hispanic Black. Of the sample, 55.6% had carotid plaque, 22.3% reported nightly short sleep (<7 hours), 66.6% intermediate sleep (≥7 and <9 hours), and 11.1% had long sleep (≥9 hours). Compared with intermediate sleep, long sleep was associated with greater odds of carotid plaque presence relative to plaque absence (odds ratio, 1.6 [95% CI, 1.1-2.4]) and larger total plaque area (odds ratio, 1.4 [95% CI, 1.0-1.9]) after full covariate adjustment. Short sleep and daytime sleepiness were not significantly associated with any carotid measures. CONCLUSIONS The association between long sleep and subclinical carotid atherosclerosis may explain prior associations between long sleep and stroke.
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Affiliation(s)
- Christian Agudelo
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, US
- The Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, Florida, US
| | - Alberto R. Ramos
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, US
- The Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, Florida, US
| | - Hannah Gardener
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, US
- The Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, Florida, US
| | - Ken Cheung
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, US
| | - Mitchell SV Elkind
- Department of Neurology, Vagelos College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, US
| | - Ralph L. Sacco
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, US
- The Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, Florida, US
| | - Tatjana Rundek
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, US
- The Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, Florida, US
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Li Y, Zhang E, Yang H, Chen Y, Tao L, Xu Y, Chen T, Shen X. Gastrodin Ameliorates Cognitive Dysfunction in Vascular Dementia Rats by Suppressing Ferroptosis via the Regulation of the Nrf2/Keap1-GPx4 Signaling Pathway. Molecules 2022; 27:molecules27196311. [PMID: 36234847 PMCID: PMC9571513 DOI: 10.3390/molecules27196311] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/16/2022] [Accepted: 09/21/2022] [Indexed: 11/30/2022] Open
Abstract
Gastrodia elata Bl. has a long edible history and is considered an important functional food raw material. Gastrodin (GAS) is one of the main functional substances in G. elata BI. and can be used as a health care product for the elderly to enhance resistance and delay aging. This study investigated the ameliorative effect and mechanism of GAS on cognitive dysfunction in vascular dementia (VaD) rats, which provides a theoretical basis for development and utilization of functional food. The water maze test shows that GAS improves learning and memory impairment in VaD rats. Meanwhile; GAS significantly decreased the levels of Fe2+ and malondialdehyde (MDA); increased the content of glutathione (GSH); and significantly up-regulated the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and glutathione peroxidase 4 (GPx4), the key regulatory factors of ferroptosis; while it down-regulated the expression of kelch-like ECH-associated protein (Keap1) and cyclooxygenase 2 (COX2). However, GAS does not directly regulate GPx4 and COX2 to inhibit ferroptosis. Furthermore, compared with GAS alone, GAS combined with Bardoxolone (an agonist of Nrf2) did not further affect the increase in GPx4 levels and decrease in COX2 levels, nor did it further affect the regulation of GAS on the biochemical parameters of ferroptosis in HT22 hypoxia injury. These findings revealed that GAS inhibited ferroptosis in hippocampal neurons by activating the Nrf2/Keap1-GPx4 signaling pathway, suggesting its possible application as a functional food for improving vascular dementia by inhibiting ferroptosis.
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Affiliation(s)
- Yue Li
- Guiyang Maternal and Child Health-Care Hospital, Guiyang 550002, China
| | - Erdong Zhang
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, the High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability, Guizhou Medical University, University Town, Guiyang 550025, China
| | - Hong Yang
- Guiyang Maternal and Child Health-Care Hospital, Guiyang 550002, China
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
| | - Yongxin Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, the High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability, Guizhou Medical University, University Town, Guiyang 550025, China
| | - Ling Tao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, the High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability, Guizhou Medical University, University Town, Guiyang 550025, China
| | - Yini Xu
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, the High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability, Guizhou Medical University, University Town, Guiyang 550025, China
| | - Tingting Chen
- Guiyang Maternal and Child Health-Care Hospital, Guiyang 550002, China
- Correspondence: (T.C.); (X.S.)
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, University Town, Guiyang 550025, China
- The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, the High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability, Guizhou Medical University, University Town, Guiyang 550025, China
- Correspondence: (T.C.); (X.S.)
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Balzano RF, Mannatrizio D, Castorani G, Perri M, Pennelli AM, Izzo R, Popolizio T, Guglielmi G. Imaging of Cerebral Microbleeds: Primary Patterns and Differential Diagnosis. CURRENT RADIOLOGY REPORTS 2021. [DOI: 10.1007/s40134-021-00390-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Ramos AR, Tarraf W, Wu B, Redline S, Cai J, Daviglus ML, Gallo L, Mossavar-Rahmani Y, Perreira KM, Zee P, Zeng D, Gonzalez HM. Sleep and neurocognitive decline in the Hispanic Community Health Study/Study of Latinos. Alzheimers Dement 2020; 16:305-315. [PMID: 31606367 DOI: 10.1016/j.jalz.2019.08.191] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION To determine if sleep-disordered breathing (SDB), daytime sleepiness, insomnia, and sleep duration predict seven-year neurocognitive decline in US Hispanics/Latinos (N = 5247). METHODS The exposures were baseline SDB, daytime sleepiness, insomnia, and sleep duration. The outcomes were change in episodic learning and memory (B-SEVLT-Sum and SEVLT-Recall), language (word fluency [WF]), processing speed (Digit Symbol Substitution), and a cognitive impairment screener (Six-item Screener [SIS]). RESULTS Mean age was 63 ± 8 years, with 55% of the population being female with 7.0% Central American, 24.5% Cuban, 9.3% Dominican, 35.9% Mexican, 14.4% Puerto Rican, and 5.1% South American background. Long sleep (>9 hours), but not short sleep (<6 hours), was associated with decline (standard deviation units) in episodic learning and memory (βSEVLT-Sum = -0.22 [se = 0.06]; P < .001; βSEVLT-Recall = -0.13 [se = 0.06]; P < .05), WF (Pwf = -0.20 [se 5 0.06]; P < .01), and SIS (βSIS = -0.16 [se = 0.06]; P < .01), but not processing speed, after adjusting for covariates. SDB, sleepiness, and insomnia were not associated with neurocognitive decline. CONCLUSION Long sleep duration predicted seven-year cognitive decline.
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Affiliation(s)
- Alberto R Ramos
- University of Miami, Miller School of Medicine, Miami, FL, USA
| | | | - Benson Wu
- University of California San Diego, San Diego, CA, USA
| | | | - Jianwen Cai
- University of North Carolina, Chapel Hill, NC, USA
| | | | - Linda Gallo
- San Diego State University, San Diego, CA, USA
| | | | | | - Phyllis Zee
- Feinberg School of Medicine, Chicago, IL, USA
| | - Donglin Zeng
- University of North Carolina, Chapel Hill, NC, USA
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Cho JH, Suh JD, Han KD, Jung JH, Lee HM. Uvulopalatopharyngoplasty May Reduce the Incidence of Dementia Caused by Obstructive Sleep Apnea: National Insurance Service Survey 2007-2014. J Clin Sleep Med 2018; 14:1749-1755. [PMID: 30353808 DOI: 10.5664/jcsm.7388] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 08/07/2018] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Numerous studies have found that obstructive sleep apnea (OSA) causes or exacerbates dementia, including Alzheimer disease and vascular dementia. However, the evidence is often conflicting. Moreover, no study has investigated the effect of surgical treatment for OSA on dementia. METHODS This retrospective cohort study analyzed data from the Korea National Health Insurance Corporation. A total of 125,417 participants (age 40 years or older) with a new diagnosis of OSA between 2007 and 2014 were included. The participants were classified into two groups: those who underwent uvulopalatopharyngoplasty (UPPP group, n = 12,664) and those who underwent no surgical treatment (no surgery group, n = 112,753). Propensity score matching by age and sex was used to select the control group of 627,085 participants. Mean follow-up duration was 4.6 ± 2.3 years. The primary endpoint was newly diagnosed Alzheimer dementia, vascular dementia, or other types of dementia. RESULTS Compared with the control group, the hazard ratio (HR) and 95% confidence interval of dementia was calculated for patients with OSA. In the no-surgery group, the incidence of Alzheimer disease (HR 1.30 [1.22-1.38]), vascular dementia (HR 1.20 [1.05-1.36]), and other types of dementia (HR 1.35 [1.20-1.54]) was significantly higher than those among the control group. In the UPPP group, the incidence of Alzheimer disease (HR 1.08 [0.80-1.45]), vascular dementia (HR 0.58 [0.30-1.12]), and other types of dementia (HR 1.00 [0.57-1.77]) was similar to control levels. CONCLUSIONS Uvulopalatopharyngoplasty may have a preventive effect on dementia in patients with OSA.
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Affiliation(s)
- Jae Hoon Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University College of Medicine, Seoul, Korea
| | - Jeffrey D Suh
- Department of Head and Neck Surgery, UCLA School of Medicine, Los Angeles, California
| | - Kyung-Do Han
- Department of Biostatistics, Biomedicine and Health Sciences, Catholic University College of Medicine, Seoul, Korea
| | - Jin-Hyung Jung
- Department of Biostatistics, Biomedicine and Health Sciences, Catholic University College of Medicine, Seoul, Korea
| | - Heung Man Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, Seoul, Korea
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Sharma R, Dearaugo S, Infeld B, O'Sullivan R, Gerraty RP. Cerebral amyloid angiopathy: Review of clinico-radiological features and mimics. J Med Imaging Radiat Oncol 2018; 62:451-463. [PMID: 29604173 DOI: 10.1111/1754-9485.12726] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 03/01/2018] [Indexed: 01/02/2023]
Abstract
Cerebral amyloid angiopathy (CAA) is an important cause of lobar intracerebral haemorrhage (ICH) in the elderly, but has other clinico-radiological manifestations. In the last two decades, certain magnetic resonance imaging (MRI) sequences, namely gradient-recalled echo imaging and the newer and more sensitive susceptibility-weighted imaging, have been utilised to detect susceptibility-sensitive lesions such as cerebral microbleeds and cortical superficial siderosis. These can be utilised sensitively and specifically by the Modified Boston Criteria to make a diagnosis of CAA without the need for 'gold-standard' histopathology from biopsy. However, recently, other promising MRI biomarkers of CAA have been described which may further increase precision of radiological diagnosis, namely chronic white matter ischaemia, cerebral microinfarcts and lobar lacunes, cortical atrophy, and increased dilated perivascular spaces in the centrum semiovale. However, the radiological manifestations of CAA, as well as their clinical correlates, may have other aetiologies and mimics. It is important for the radiologist to be aware of these clinico-radiological features and mimics to accurately diagnose CAA. This is increasingly important in a patient demographic that has a high prevalence for use of antiplatelet and antithrombotic medications for other comorbidities which inherently carries an increased risk of ICH in patients with CAA.
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Affiliation(s)
- Rohit Sharma
- Department of Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
- Epworth HealthCare, Richmond, Victoria, Australia
| | - Stephanie Dearaugo
- Department of Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
- Epworth HealthCare, Richmond, Victoria, Australia
| | - Bernard Infeld
- Department of Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
- Epworth HealthCare, Richmond, Victoria, Australia
| | - Richard O'Sullivan
- Department of Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
- Healthcare Imaging Services, Melbourne, Victoria, Australia
| | - Richard P Gerraty
- Department of Medicine, Monash University, The Alfred Hospital, Melbourne, Victoria, Australia
- Epworth HealthCare, Richmond, Victoria, Australia
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Secnik J, Cermakova P, Fereshtehnejad SM, Dannberg P, Johnell K, Fastbom J, Winblad B, Eriksdotter M, Religa D. Diabetes in a Large Dementia Cohort: Clinical Characteristics and Treatment From the Swedish Dementia Registry. Diabetes Care 2017; 40:1159-1166. [PMID: 28655740 PMCID: PMC5566285 DOI: 10.2337/dc16-2516] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 05/30/2017] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We aimed to investigate the differences in clinical characteristics and pharmacological treatment associated with the presence of diabetes in a large cohort of patients with dementia. RESEARCH DESIGN AND METHODS A cross-sectional registry-based study was conducted using data from the Swedish Dementia Registry (SveDem). Data on dementia diagnosis, dementia type, and demographic determinants were extracted from SveDem. Data from the Swedish Patient Register and Prescribed Drug Register were combined for the diagnosis of diabetes. Data on antidiabetic, dementia, cardiovascular, and psychotropic medications were extracted from the Swedish Prescribed Drug Register. Logistic regression was used to determine whether the variables were associated with diabetes after adjustment for confounders. In total, 29,630 patients were included in the study, and 4,881 (16.5%) of them received a diagnosis of diabetes. RESULTS In the fully adjusted model, diabetes was associated with lower age at dementia diagnosis (odds ratio [OR] 0.97 [99% CI 0.97-0.98]), male sex (1.41 [1.27-1.55]), vascular dementia (1.17 [1.01-1.36]), and mixed dementia (1.21 [1.06-1.39]). Dementia with Lewy bodies (0.64 [0.44-0.94]), Parkinson disease dementia (0.46 [0.28-0.75]), and treatment with antidepressants (0.85 [0.77-0.95]) were less common among patients with diabetes. Patients with diabetes who had Alzheimer disease obtained significantly less treatment with cholinesterase inhibitors (0.78 [0.63-0.95]) and memantine (0.68 [0.54-0.85]). CONCLUSIONS Patients with diabetes were younger at dementia diagnosis and obtained less dementia medication for Alzheimer disease, suggesting less optimal dementia treatment. Future research should evaluate survival and differences in metabolic profile in patients with diabetes and different dementia disorders.
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Affiliation(s)
- Juraj Secnik
- Center for Alzheimer Research, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - Pavla Cermakova
- Center for Alzheimer Research, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden.,National Institute of Mental Health, Klecany, Czech Republic
| | - Seyed-Mohammad Fereshtehnejad
- Center for Alzheimer Research, Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Huddinge, Sweden.,Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Pontus Dannberg
- Center for Alzheimer Research, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - Kristina Johnell
- Aging Research Center, Stockholm University, Stockholm, Sweden, and Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - Johan Fastbom
- Aging Research Center, Stockholm University, Stockholm, Sweden, and Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
| | - Bengt Winblad
- Center for Alzheimer Research, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden.,Department of Geriatric Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Maria Eriksdotter
- Center for Alzheimer Research, Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institute, Huddinge, Sweden.,Department of Geriatric Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Dorota Religa
- Center for Alzheimer Research, Division of Neurogeriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden.,Department of Geriatric Medicine, Karolinska University Hospital, Stockholm, Sweden
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Haithem H, Ons A, Salma N, Jihène R, Mariam A, Mariem M, Mariem N, Nabila BR, Asma O, Sana BA, Sofien B, Ali B. Association between dementia and vascular disease-associated polymorphisms in a Tunisian population. Int J Neurosci 2017; 128:32-41. [PMID: 28657841 DOI: 10.1080/00207454.2017.1348353] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Dementia is a multifactorial idiopathic pathology caused by clinical, eDementia is a multifactorial idiopathic pathology caused by clinical, environmental and genetic factors. Hence, its etiology is still unknown. We aimed to evaluate the association between five genetic risk factors for vascular diseases and dementia individually and when gathered in haplotypes. MATERIALS AND METHOD We enrolled 200 dementia patients and 300 controls. All subjects were genotyped for vascular diseaseassociated polymorphisms in the genes coding for Apolipoprotein-E (ApoE), angiotensin converting enzyme (ACE) and Paraoxonase-1 (PON1). RESULTS The association between dementia risk and all the studied polymorphisms except of PON1-Q192R was found to be significant. Carrying the ApoE e4 allele seems to increase dementia risk by 4.32 fold (p = 0.001). The risk associated with ACE I and PON1-L55M T alleles were lower (2.58 and 2.11 fold, p < 0.001 and p = 0.015, respectively). When combined in haplotypes, these polymorphisms showed a cumulative and synergetic effect. GTICC haplotype appears to be associated with 9-fold dementia risk (p < 0.001), whereas AADTT seems to reduce dementia risk by 80% (p = 0.003). CONCLUSION Our results suggest that, ApoE ε4, ACE I and PON1-L55M T alleles are associated with dementia risk whether these polymorphisms were studied separately or gathered in haplotypes. Still, the contribution of each gene to the pathophysiological development of dementia must be more investigated.
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Affiliation(s)
- Hamdouni Haithem
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Achour Ons
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Naija Salma
- b Neurology Department , Sahloul University Hospital , Sousse , Tunisia
| | - Rejeb Jihène
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia
| | - Aounallah Mariam
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia
| | - Mhiri Mariem
- b Neurology Department , Sahloul University Hospital , Sousse , Tunisia
| | - Noureddine Mariem
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Ben Rejeb Nabila
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,c Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Omezzine Asma
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,c Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Ben Amor Sana
- b Neurology Department , Sahloul University Hospital , Sousse , Tunisia
| | - Benammou Sofien
- b Neurology Department , Sahloul University Hospital , Sousse , Tunisia
| | - Bouslama Ali
- a Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,c Biochemistry Department , Sahloul University Hospital , Sousse , Tunisia.,d Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
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Bağcı B, Utkan T, Yazir Y, Aricioglu F, Öztürk GS, Sarioglu Y. Effects of agmatine on cognitive functions during vascular dementia in biological aging through eNOS and BDNF expression. PSYCHIAT CLIN PSYCH 2017. [DOI: 10.1080/24750573.2017.1309090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
| | - Tijen Utkan
- Department of Pharmacology and Experimental Medical Research and Application Unit, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Yusufhan Yazir
- Department of Histology and Embryology and Stem Cell and Gene Therapy Research and Application Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Feyza Aricioglu
- Faculty of Pharmacy, Department of Pharmacology and Psychopharmacology Research Unit, Marmara University, Istanbul, Turkey
| | - Gökçe Sevim Öztürk
- Department of Medical Pharmacology, Gazi University, Medical School, Ankara, Turkey
| | - Yusuf Sarioglu
- Istinye University Faculty of Medicine, Istanbul, Turkey
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Zhong XM, Ren XC, Lou YL, Chen MJ, Li GZ, Gong XY, Huang Z. Effects of in-vitro cultured calculus bovis on learning and memory impairments of hyperlipemia vascular dementia rats. JOURNAL OF ETHNOPHARMACOLOGY 2016; 192:390-397. [PMID: 27616028 DOI: 10.1016/j.jep.2016.09.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 08/26/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In-vitro cultured calculus bovis (ICCB) is a quality substitute for natural bezoar which is used for the therapeutic purpose of treating encephalopathy. ICCB has been authorized to use on clinic. The aim of the study is to evaluate the effects and the potential mechanisms of in-vitro cultured calculus bovis (ICCB) on learning and memory impairments of hyperlipemia vascular dementia (HVD) rats. MATERIALS AND METHODS The HVD model was established by permanent occlusion of bilateral common carotid arteries based on hyperlipemia rats. Learning and memory abilities were evaluated by morris water maze test and shuttle box test. Ultraviolet-visible spectrophotometry (UV-vis) was employed to determine the SOD, MDA and NO in cerebral tissue, as well as the TG in serum. HE staining and toluidine blue staining were employed to evaluate cone cells damage in hippocampus CA1. An immunohistochemistry was used to measure the Bax and Bcl-2 expressions in cerebral tissue. RESULTS Compared with control group, the abilities of spatial learning and memory and conditional memory were decreased significantly in HVD group (P<0.01, P<0.05). MDA content in cerebral tissue was remarkably increased while the SOD activity and NO content were both decreased (P<0.01). TG content in serum was increased remarkably (P<0.01). And the cone cells in hippocampus CA1 were damaged obviously. Compared with HVD group, ICCB treatment improved the abilities of learning and memory, elevated the SOD activity (P<0.01, P<0.05), reduced the MDA content (P<0.01) as well as the TG content in serum (P<0.01), increased the NO content (P<0.01), improved the damaged cone cells in hippocampus CA1, increased the number of cones cells (P<0.01), decreased the Bax expression, and increased the Bcl-2 expression (P<0.01). CONCLUSION ICCB could improve the abilities of learning and memory in HVD rats. It might be related to anti-oxidative, regulation of Bax and Bcl-2 expressions, and the alleviation of cone cells damage.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Avoidance Learning/drug effects
- Behavior, Animal/drug effects
- Bezoars
- CA1 Region, Hippocampal/drug effects
- CA1 Region, Hippocampal/metabolism
- CA1 Region, Hippocampal/pathology
- CA1 Region, Hippocampal/physiopathology
- Carotid Stenosis/complications
- Cattle
- Dementia, Vascular/blood
- Dementia, Vascular/drug therapy
- Dementia, Vascular/etiology
- Dementia, Vascular/psychology
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Gallstones/chemistry
- Hyperlipidemias/blood
- Hyperlipidemias/complications
- Male
- Malondialdehyde/metabolism
- Maze Learning/drug effects
- Memory/drug effects
- Memory Disorders/blood
- Memory Disorders/drug therapy
- Memory Disorders/etiology
- Memory Disorders/psychology
- Nitric Oxide/metabolism
- Nootropic Agents/isolation & purification
- Nootropic Agents/pharmacology
- Rats, Sprague-Dawley
- Superoxide Dismutase/metabolism
- Triglycerides/blood
- bcl-2-Associated X Protein/metabolism
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Affiliation(s)
- Xiao-Ming Zhong
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Xue-Cong Ren
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, Macau University of Science and Technology, Zhuhai 519020, China.
| | - Ye-Liang Lou
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Meng-Jing Chen
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Guan-Ze Li
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Xue-Yuan Gong
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| | - Zhen Huang
- Institute of Traditional Chinese Medicine Resources, College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China.
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11
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Rannasangpei Is a Therapeutic Agent in the Treatment of Vascular Dementia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:2530105. [PMID: 27293454 PMCID: PMC4886068 DOI: 10.1155/2016/2530105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 03/02/2016] [Indexed: 11/28/2022]
Abstract
Rannasangpei (RSNP) is used as a therapeutic agent in the treatment of cardiovascular diseases, neurological disorders, and neurodegeneration in China; however, its potential use in the treatment of vascular dementia (VD) was unclear. In this study, our aim was to examine the neuroprotective effect of RSNP in a VD rat model, which was induced by permanent bilateral common carotid artery occlusion (2VO). Four-week administration with two doses of RSNP was investigated in our study. Severe cognitive deficit in the VD model, which was confirmed in Morris water maze (MWM) test, was significantly restored by the administration of RSNP. ELISA revealed that the treatments with both doses of RSNP could reinstate the cholinergic activity in the VD animals by elevating the production of choline acetyltransferase (ChAT) and reducing the acetylcholinesterase (AChE); the treatment of RSNP could also reboot the level of superoxide dismutase (SOD) and decrease malondialdehyde (MDA). Moreover, Western blot and quantitative PCR (Q-PCR) results indicated that the RSNP could suppress the apoptosis in the hippocampus of the VD animals by increasing the expression ratio of B-cell lymphoma-2 (Bcl-2) to Bcl-2-associated X protein (Bax). These results suggested that RSNP might be a therapeutic agent in the treatment of vascular dementia in the future.
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Ramos AR, Seixas A, Dib SI. Obstructive sleep apnea and stroke: links to health disparities. Sleep Health 2015; 1:244-248. [PMID: 29073399 DOI: 10.1016/j.sleh.2015.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 09/16/2015] [Accepted: 09/16/2015] [Indexed: 12/17/2022]
Abstract
Obstructive sleep apnea (OSA) is a novel cardiovascular and cerebrovascular risk factor that presents unique opportunities to understand and reduce seemingly intractable stroke disparity among non-Hispanic blacks and Hispanic/Latinos. Individuals from these 2 groups have up to a 2-fold risk of stroke and greater burden of OSA. Obstructive sleep apnea directly and indirectly increases risk of stroke through a variety of autonomic, chemical, and inflammatory mechanisms and vascular risk factors such as hypertension, obesity, and diabetes mellitus. Untreated OSA exacerbates poststroke prognosis, as it may also influence rehabilitation efforts and functional outcomes such as cognitive function after a stroke. Conversely, treatment of OSA may reduce the risk of stroke and may yield better poststroke prognosis. Unfortunately, in racial/ethnic minority groups, there are limited awareness, knowledge, and screening opportunities for OSA. Increasing awareness and improving screening strategies for OSA in minorities may alleviate stroke risk burden and improve stroke outcomes in these populations. This review article is intended to highlight the epidemiology, clinical characteristics, pathophysiology, diagnosis, and treatment of OSA in relation to stroke risk, with an emphasis on race-ethnic disparities.
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Affiliation(s)
- Alberto R Ramos
- Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL; Sleep Disorders Program, Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, FL.
| | - Azizi Seixas
- Center for Healthful Behavior Change, Department of Population Health, New York University, School of Medicine, New York, NY
| | - Salim I Dib
- Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL; Sleep Disorders Program, Bascom Palmer Eye Institute, University of Miami, Miller School of Medicine, Miami, FL
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