scholarly journals Remote Ischemic Conditioning Improves Cognition in Patients with Subcortical Ischemic Vascular Dementia

2019 ◽  
Author(s):  
Zhangyuan Liao ◽  
Yali Bu ◽  
Meijie Li ◽  
Ranran Han ◽  
Nan Zhang ◽  
...  
Keyword(s):  
White Matter ◽  
Vascular Dementia ◽  
Upper Limb ◽  
Verbal Learning ◽  
Control Group ◽  
Lesion Volume ◽  
Remote Ischemic Conditioning ◽  
Ischemic Conditioning ◽  
Hs Crp

Abstract Background ： Subcortical ischemic vascular dementia (SIVD) is very common among the older people, but has no approved treatment. Preclinical trials show that remote ischemic conditioning (RIC) reduces recurrence of ischemic stroke. We hypothesize that RIC may also be an effective therapy for patients with SIVD. Methods ： Thirty-seven consecutive SIVD cases were enrolled in this randomized control study. Eighteen RIC patients underwent five brief cycles of conditioning (bilateral upper limb compression at 200 mmHg) followed by reperfusion twice daily over 6 consecutive months. Nineteen control patients underwent the same process, but at a pressure of 60 mmHg which caused no restriction on the blood flow of the upper limb. The primary outcome measures were changes in neuropsychological assessments. The secondary outcomes included the changes in high-sensitive C-reactive protein (hs-CRP) concentration, white matter lesion volume (WMLV), diffusion tension imaging (DTI) metrics of white matter. All data were collected at baseline and follow-up. Results ： A significant treatment difference favoring RIC at 6 months was observed on performance of Hopkins Verbal Learning Test-Revised (HVLT-R), Controlled Oral Word Association Test(COWAT), Trail Making Test A and B (TMT-A & TMT-B), and Judgment of Line Orientation (JLO) (p<0.05). The control group did not show much improvement after the treatment, and only with a slight change in HVLT-R and TMT-R(p<0.05). Covariance analysis of efficacy between the two groups suggested that RIC patients performed better on JLO than control patients at the 6-month follow-up (RIC 23.10 vs. control 18.56; p=0.013). Although DTI metrics were comparable, Hs-CRP levels and WMLV in RIC patients showed a declining trend. Conclusions： Over the 6-month treatment period, we found that RIC was safe and effective for improving cognitive function in SIVD patients.

scholarly journals Effects of remote ischemic conditioning on microcirculatory alterations in patients with sepsis: a single-arm clinical trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Inga Kiudulaite ◽  
Egle Belousoviene ◽  
Astra Vitkauskiene ◽  
Andrius Pranskunas
Keyword(s):  
Dark Field ◽  
Historical Control ◽  
Flow Index ◽  
Control Group ◽  
Remote Ischemic Conditioning ◽  
Ischemic Conditioning ◽  
Sublingual Microcirculation ◽  
Link Type ◽  
Microcirculatory Flow ◽  
Tertiary Teaching

Abstract Background Remote ischemic conditioning (RIC) is a promising technique that may protect organs and tissues from the effects of additional ischemic episodes. However, the therapeutic efficacy of RIC in humans with sepsis remains unknown. We hypothesized that RIC might improve sublingual microcirculation in patients with sepsis. Methods This prospective single-arm trial was performed in a mixed ICU at a tertiary teaching hospital. We included patients with sepsis or septic shock within 24 h of ICU admission. The RIC procedure comprised 3 cycles of brachial cuff inflation to 200 mmHg for 5 min followed by deflation to 0 mmHg for another 5 min. The procedure took 30 min. RIC was performed at the time of study inclusion and repeated after 12 and 24 h. Sublingual microcirculatory measurements were obtained before and after each RIC procedure using a Cytocam®-incident dark-field (IDF) device (Braedius Medical, Huizen, The Netherlands). The microcirculatory data were compared with a historical control. Data are reported as the medians along with the 25th and 75th percentiles. Results Twenty-six septic patients with a median age of 65 (57–81) years were enrolled in this study. The median Acute Physiology and Chronic Health Evaluation (APACHE) II and Sequential Organ Failure Assessment (SOFA) scores at admission were 20 (13–23) and 10 (9–12), respectively. All patients were receiving vasopressors. After the 1st RIC procedure, the microvascular flow index (MFI) and the proportion of perfused vessels (PPV) among small vessels were significantly higher than before the procedure, with pre- and post-treatment values of 2.17 (1.81–2.69) and 2.59 (2.21–2.83), respectively, for MFI (p = 0.003) and 87.9 (82.4–93.8) and 92.5 (87.9–96.1) %, respectively, for PPV (p = 0.026). This result was confirmed by comparison with a historical control group. We found no change in microcirculatory flow or density parameters during repeated RIC after 12 h and 24 h. Conclusion In patients with sepsis, the first remote ischemic conditioning procedure improved microcirculatory flow, whereas later procedures did not affect sublingual microcirculation. Trial registration NCT04644926, http://www.clinicaltrials.gov. Date of registration: 25 November 2020. Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04644926.

Abstract TP407: Effects of Remote Ischemic Conditioning on Cerebral Small Vessel Disease Outcomes

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Yuan Wang ◽  
Haiqing Song ◽  
Kai Dong ◽  
Ran Meng ◽  
Shuying Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Flow Velocity ◽  
Small Vessel Disease ◽  
Cerebral Small Vessel Disease ◽  
Vascular Risk Factors ◽  
Control Group ◽  
Vascular Risk ◽  
Remote Ischemic Conditioning ◽  
Ischemic Conditioning ◽  
Vessel Disease

Objective: To evaluate the preliminary efficacy of remote ischemic conditioning (RIC) on patients with cerebral small vessel disease (SVD). Methods: Thirty patients diagnosed with symptomatic SVD within 30 days of onset were enrolled in this prospectively randomized controlled study for 1 year. All patients received routine medical treatment including treating vascular risk factors according to the guideline. Patients in the experimental group (n=14) were administered 5 cycles consisting of ischemia followed by reperfusion for 5 minutes on bilateral upper limbs twice daily for 1 year. Those in the control group (n=16) underwent sham ischemia-reperfusion cycles. Primary outcome was the change of cognitive function measured by mini-mental state examination (MMSE) and montreal cognitive assessment scale (MoCA), and secondary outcomes were changes of plasma biomarkers, cerebral hemodynamic parameters measured by vascular ultrasound and brain lesions measured by MRI FLAIR both at baseline and at the end of 1 year visit. Results: Compared with patients in the control group, patients in the RIC group had higher flow velocity (FV), and lower pulsatility index (PI), but without statistical difference. Patients in the RIC group had improvement in visuospatial and executive abilities (3.86±1.03 vs. 4.43±0.85, p=0.026), reduced plasma triglyceride (1.60±0.74 vs. 1.25±0.38, p=0.019), low density lipoprotein (2.89±0.81 vs. 2.26±0.67, p=0.003) and homocysteine (15.66±10.11 vs. 13.66±9.80 p=0.017). Similarly in the RIC group, the diastolic flow velocity (DFV) of middle cerebral artery (MCA) (right: 33.93±7.67 vs. 36.93±6.12, p=0.032; left: 33.93±7.67 vs. 36.93± 6.12, p=0.032) and the mean flow velocity (MFV) of left MCA (35.00±5.04 vs. 39.50±5.59, p=0.003) increased, and the PI of MCA (right: 1.11±0.19 vs. 1.02±0.14 p=0.030; left: 1.10±0.22 vs. 0.99±0.14, p=0.037) decreased. Conclusion: RIC appears to be potentially effective for improving cognition, enhancing cerebral perfusion, and modifying vascular risk factors in SVD patients. Further studies focusing on long-term neurological outcomes and potential mechanisms underlying RIC on SVD patients are needed.

scholarly journals Effects of Uric Acid Lowering Therapy in Patients With Essential Arterial Hypertension

2021 ◽  
Author(s):  
Krystian Gruszka ◽  
Tomasz Drożdż ◽  
Wiktoria Wojciechowska ◽  
Piotr Jankowski ◽  
Michał Terlecki ◽  
...  
Keyword(s):  
Uric Acid ◽  
Arterial Hypertension ◽  
Elevated Serum ◽  
Intima Media Thickness ◽  
Volume Index ◽  
Control Group ◽  
Lowering Therapy ◽  
Essential Arterial Hypertension ◽  
Hs Crp

Abstract Background Asymptomatic hyperuricemia (AHU) is defined as elevated serum uric acid (UA) concentration without symptoms. This study aimed to determine the effects of AHU treatment with allopurinol on selected hypertension mediated organ damage (HMOD) indices in patients with uncomplicated essential arterial hypertension (AH). MethodsPatients aged 30-70 years with AHU and essential hypertension grade 1-2 with adequate blood pressure (BP) control, without previous urate lowering therapy (ULT) were divided into two groups: a) receiving allopurinol (ULT group) and b) age-and sex matched patients without ULT (control group). Both groups received UA-lowering diet. BP (office, 24 hour and central), echocardiographic parameters, pulse-wave velocity, carotid intima-media thickness (IMT) and lab tests (high-sensitivity C-reactive protein (hs-CRP) were measured at baseline and at 6 months follow-up.ResultsOut of 100 participants 87 completed the study (44 ULT patients and 43 controls). At 6 months follow-up, there was a significantly greater reduction in serum UA concentration in the ULT group than in the control group (464±68.8 µmol/l vs 314±55.6 µmol/l, p<0.0001). Patients receiving allopurinol had significant reductions in office systolic (137±11.8 mmHg vs 134±9.3 mmHg; p=0.025) and diastolic BP (83±9.9 mmHg vs 79±8.7 mmHg, p=0.017), central systolic BP (56±8.9 mmHg vs 51±12.9 mmHg, p=0.046), pulse pressure (43±10.4 mmHg vs 39±11.2 mmHg, p=0.017), IMT (0.773±0.121 mm vs 0.752±0.13 mm, p=0.044), left atrium volume index (40±13.5 ml/m2 vs 38±12.3 ml/m2, p=0.044), and hs-CRP level (3.36±2.73 mg/l vs 2.74±1.91 mg/l, p=0.028) compared to controls. The decrease in UA concentration was significantly related to the reduction in IMT (R=0.37, p<0.001), central SBP (R=0.26, p=0.015) and hs-CRP concentration (R=0.30, p=0.004). Multivariate regression analysis revealed the independent relationship between reduction in IMT and UA lowering (R=0.3234, R2=0.0722, p<0.026).ConclusionsIn patients with AH and asymptomatic hyperuricemia treatment with allopurinol leads to further improvement in BP control and reduction in HMOD intensity, in particular IMT. The decrease in hs-CRP concentration associated with ULT may have a beneficial effect on patient long-term prognosis.

scholarly journals Brevican and Neurocan Peptides as Potential Cerebrospinal Fluid Biomarkers for Differentiation Between Vascular Dementia and Alzheimer’s Disease

2020 ◽  
pp. 1-13
Author(s):  
Karolina Minta ◽  
Gunnar Brinkmalm ◽  
Erik Portelius ◽  
Per Johansson ◽  
Johan Svensson ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cerebrospinal Fluid ◽  
Vascular Dementia ◽  
Extracellular Enzymes ◽  
Control Group ◽  
Healthy Controls ◽  
Clear Trend ◽  
Cerebrospinal Fluid Biomarkers

Background: Brevican and neurocan are central nervous system-specific extracellular matrix proteoglycans. They are degraded by extracellular enzymes, such as metalloproteinases. However, their degradation profile is largely unexplored in cerebrospinal fluid (CSF). Objective: The study aim was to quantify proteolytic peptides derived from brevican and neurocan in human CSF of patients with Alzheimer’s disease (AD) and vascular dementia (VaD) compared with controls. Methods: The first cohort consisted of 75 individuals including 25 patients with AD, 7 with mild cognitive impairment (MCI) diagnosed with AD upon follow-up, 10 patients with VaD or MCI diagnosed with VaD upon follow-up, and 33 healthy controls and cognitively stable MCI patients. In the second cohort, 31 individuals were included (5 AD patients, 14 VaD patients and 12 healthy controls). Twenty proteolytic peptides derived from brevican (n = 9) and neurocan (n = 11) were quantified using high-resolution parallel reaction monitoring mass spectrometry. Results: In the first cohort, the majority of CSF concentrations of brevican and neurocan peptides were significantly decreased inVaDas compared withADpatients (AUC = 0.83.0.93, p≤0.05) and as compared with the control group (AUC = 0.79.0.87, p ≤ 0.05). In the second cohort, CSF concentrations of two brevican peptides (B87, B156) were significantly decreased in VaD compared with AD (AUC = 0.86.0.91, p ≤ 0.05) and to controls (AUC = 0.80.0.82, p ≤ 0.05), while other brevican and neurocan peptides showed a clear trend to be decreased in VaD compared with AD (AUC = 0.64.80, p > 0.05). No peptides differed between AD and controls. Conclusion: Brevican and neurocan peptides are potential diagnostic biomarkers for VaD, with ability to separate VaD from AD.

scholarly journals Remote ischemic conditioning improves cognition in patients with subcortical ischemic vascular dementia

BMC Neurology ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Zhangyuan Liao ◽  
Yali Bu ◽  
Meijie Li ◽  
Ranran Han ◽  
Nan Zhang ◽  
...  
Keyword(s):  
Vascular Dementia ◽  
Remote Ischemic Conditioning ◽  
Ischemic Conditioning

White Matter Changes and Cognitive Decline in a Ten-Year Follow-Up Period: A Pilot Study on a Single-Center Cohort from the Leukoaraiosis and Disability Study

2016 ◽  
Vol 41 (5-6) ◽  
pp. 303-313
Author(s):  
Sofia Madureira ◽  
Ana Verdelho ◽  
Carla Moleiro ◽  
Catarina Santos ◽  
Philip Scheltens ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
White Matter ◽  
Verbal Learning ◽  
White Matter Lesions ◽  
Disease Assessment ◽  
California Verbal Learning Test ◽  
Clinical Diagnoses ◽  
Neuropsychological Predictors ◽  
Learning Test

Aims: To describe the contribution of white matter lesions to the long-term neuropsychological profiles of different groups of clinical diagnoses, and to identify neuropsychological predictors of cognitive impairment in a 10-year follow-up. Methods: The Lisbon subcohort of the Leukoaraiosis and Disability (LADIS) study was re-evaluated performing a clinical, functional and cognitive evaluation [including Mini-Mental State Examination (MMSE), Alzheimer's Disease Assessment Scale - Cognition (ADAS-Cog) and ADAS-Cog with the extension for vascular impairment (VADAS-Cog), the 9-word version of the California Verbal Learning Test (CVLT-9), the Trail-Making test and the Stroop test] as well as an MRI scan. Using clinical diagnostic criteria, participants were identified as having no cognitive impairment (NI), cognitive impairment but no dementia (CIND) or dementia (DEM), and the effect of time on clinical diagnosis and neuropsychological profiles was analyzed. Results: From the initial group of 66 participants, 37 out of 41 survivors (90%) were re-evaluated (mean age 81.40 years, 57% women). Fifteen patients (41%) had DEM, 12 (32%) CIND and 10 (27%) NI. Over time, the three groups presented distinct profiles in the MMSE [F2, 62 = 15.85, p = 0.000], ADAS [F2, 62 = 15.85, p = 0.000] and VADAS [F2, 48 = 5.87, p = 0.008]. Logistic regression analysis identified higher scores on MMSE (β = 1.14, p = 0.03, OR = 3.13, 95% CI 1.09-8.97) as predictors of NI after 10 years of follow-up. Conclusion: Higher scores on baseline MMSE were the only neuropsychological predictors of NI after 10 years.

scholarly journals Human Leukocyte Antigen Genotype as a Marker of Multiple Sclerosis Prognosis

2019 ◽  
Vol 47 (2) ◽  
pp. 189-196 ◽  
Author(s):  
Andreas P. Lysandropoulos ◽  
Gaetano Perrotta ◽  
Thibo Billiet ◽  
Annemie Ribbens ◽  
Renaud Du Pasquier ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Human Leukocyte Antigen ◽  
Visual Memory ◽  
Verbal Learning ◽  
Human Leukocyte ◽  
Hla Typing ◽  
Lesion Volume ◽  
Leukocyte Antigen ◽  
Hla Genotype

ABSTRACT:Objective:In a previous pilot monocentric study, we investigated the relation between human leukocyte antigen (HLA) genotype and multiple sclerosis (MS) disease progression over 2 years. HLA-A*02 allele was correlated with better outcomes, whereas HLA-B*07 and HLA-B*44 were correlated with worse outcomes. The objective of this extension study was to further investigate the possible association of HLA genotype with disease status and progression in MS as measured by sensitive and complex clinical and imaging parameters.Methods:Hundred and forty-six MS patients underwent HLA typing. Over a 4-year period of follow-up, we performed three clinical and magnetic resonance imaging (MRI) assessments per patient, which respectively included Expanded Disability Status Scale, Multiple Sclerosis Severity Scale, Timed-25-Foot-Walk, 9-Hole Peg Test, Symbol Digit Modalities Test, Brief Visual Memory Test, California Verbal Learning Test-II, and whole-brain atrophy, fluid-attenuated inversion recovery (FLAIR) lesion volume change and number of new FLAIR lesions using icobrain. We then compared the clinical and MRI outcomes between predefined HLA patient groups.Results:Results of this larger study with a longer follow-up are in line with what we have previously shown. HLA-A*02 allele is associated with potentially better MS outcomes, whereas HLA-B*07, HLA-B*44, HLA-B*08, and HLA-DQB1*06 with a potential negative effect. Results for HLA-DRB1*15 are inconclusive.Conclusion:In the era of MS treatment abundance, HLA genotype might serve as an early biomarker for MS outcomes to inform individualized treatment decisions.

scholarly journals Preliminary Results on the Effectiveness of a Nutrition Intervention in Lowering Diabetes Risk in Prediabetic People Living with HIV (PLWH) in MASH Cohort (OR36-06-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Alicia Sneij Perez ◽  
Adriana Campa ◽  
Leslie Seminario ◽  
Sabrina Martinez ◽  
Fatma Huffman ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Fasting Blood Glucose ◽  
Intervention Group ◽  
Nutrition Intervention ◽  
Control Group ◽  
Reactive Protein ◽  
Research Initiative ◽  
Significant Difference ◽  
Hs Crp

Abstract Objectives The objective of this study is to assess the effectiveness of a 6-month nutrition intervention to improve glycemic parameters and inflammation in prediabetic PLWH on stable ART with undetectable HIV viral load. Methods A 6-month randomized, controlled nutrition intervention was conducted in prediabetic PLWH. The study participants for the intervention were recruited from the Miami Adult Studies for HIV (MASH) cohort at the FIU-Borinquen Research Clinic. Upon their consent, the participants were randomized into the intervention group or the control group. Participants randomized in the intervention group met once a month for approximately 1 hour where they received medical nutrition therapy, nutrition counseling and nutrition education; participants randomized into the control group received educational material at baseline. Blood was drawn at baseline and at 6-month to measure fasting blood glucose (FBG) and high sensitivity C-reactive protein (hs-CRP). Results A total of 38 participants were recruited and randomized into either the intervention group (n = 20) or the control group (n = 18). We found that the FBG for the 6-month follow-up for the intervention group was significantly lower than the baseline FBG values of the same study group (paired t-test; P = 0.031). No significant difference was found in the control group between the baseline and 6-month fasting blood glucose values (P = 0.068). Moreover, no significant difference was found in pre/post C-reactive protein (CRP) levels in the intervention or control group (paired t-test; P = 0.404 and P = 0.117 respectively). There was a significant difference in CRP levels at baseline (P = 0.028) between the study groups but no difference at the 6-month follow up (Mann Whitney U test: P = 0.430). Conclusions The results from this intervention support the notion that a nutrition intervention is effective in prediabetic PLWH to lower diabetes risk by significantly lowering fasting blood glucose and may be implemented into larger scale interventions; however, no significant changes was seen in hs-CRP values between the 2 groups. Funding Sources National Institute of General Medical Sciences (NIGMS): Research Initiative for Scientific Enhancement (RISE), Biomedical Research Initiative (BRI) Grant, National Institute on Drug Abuse 5U01DA040381-03 and FIU-Dissertation Funding.

T1 cortical hypointensities and their association with cognitive disability in multiple sclerosis

2010 ◽  
Vol 16 (10) ◽  
pp. 1203-1212 ◽  
Author(s):  
Francesca Bagnato ◽  
Zeena Salman ◽  
Robert Kane ◽  
Sungyoung Auh ◽  
Fredric K Cantor ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Cognitive Impairment ◽  
White Matter ◽  
Statistical Significance ◽  
Verbal Learning ◽  
Lesion Volume ◽  
Cognitive Disability ◽  
3.0 Tesla ◽  
Multiple Sclerosis Patients ◽  
The Impact

Background: Neocortical lesions (NLs) largely contribute to the pathology of multiple sclerosis (MS), although their relevance in patients’ disability remains unknown. Objective: To assess the incidence of T1 hypointense NLs by 3.0-Tesla magnetic resonance imaging (MRI) in patients with MS and examine neocortical lesion association with cognitive impairment. Methods: In this case-control study, 21 MS patients and 21 age-, sex- and years of education-matched healthy volunteers underwent: (i) a neuropsychological examination rating cognitive impairment (Minimal Assessment of Cognitive Function in MS); (ii) a 3.0-Tesla MRI inclusive of an isotropic 1.0 mm3 three-dimensional inversion prepared spoiled gradient-recalled-echo (3D-IRSPGR) image and T1- and T2-weighted images. Hypointensities on 3D-IRSPGR lying in the cortex, either entirely or partially were counted and association between NLs and cognitive impairment investigated. Results: A total of 95 NLs were observed in 14 (66.7%) patients. NL+ patients performed poorer (p = 0.020) than NLpatients only on the delayed recall component of the California Verbal Learning Test. This difference lost statistical significance when a correction for white matter lesion volume was employed. Conclusions: Although T 1 hypointense NLs may be present in a relatively high proportion of multiple sclerosis patients, the impact that they have in cognitive impairment is not independent from white matter disease.

scholarly journals Effectiveness of the Virtual Reality System Toyra on Upper Limb Function in People with Tetraplegia: A Pilot Randomized Clinical Trial

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
I. Dimbwadyo-Terrer ◽  
A. Gil-Agudo ◽  
A. Segura-Fragoso ◽  
A. de los Reyes-Guzmán ◽  
F. Trincado-Alonso ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Upper Limb ◽  
Conventional Therapy ◽  
Control Group ◽  
Virtual Reality System ◽  
Limb Function ◽  
Upper Limb Function ◽  
Level Of Satisfaction ◽  
High Level

The aim of this study was to investigate the effects of a virtual reality program combined with conventional therapy in upper limb function in people with tetraplegia and to provide data about patients’ satisfaction with the virtual reality system. Thirty-one people with subacute complete cervical tetraplegia participated in the study. Experimental group received 15 sessions with Toyra®virtual reality system for 5 weeks, 30 minutes/day, 3 days/week in addition to conventional therapy, while control group only received conventional therapy. All patients were assessed at baseline, after intervention, and at three-month follow-up with a battery of clinical, functional, and satisfaction scales. Control group showed significant improvements in the manual muscle test (p= 0,043, partialη2= 0,22) in the follow-up evaluation. Both groups demonstrated clinical, but nonsignificant, changes to their arm function in 4 of the 5 scales used. All patients showed a high level of satisfaction with the virtual reality system. This study showed that virtual reality added to conventional therapy produces similar results in upper limb function compared to only conventional therapy. Moreover, the gaming aspects incorporated in conventional rehabilitation appear to produce high motivation during execution of the assigned tasks. This trial is registered with EudraCT number2015-002157-35.

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