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1.
Matern Child Health J ; 28(3): 391-399, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38280150

ABSTRACT

INTRODUCTION: The Child and Adult Care Food Program (CACFP) provides reimbursement for meals and snacks offered in participating centers and issues nutrition standards, including guidelines for feeding infants in childcare settings. Offering training to childcare providers participating in the CACFP is necessary to ensure compliance with nutrition standards in childcare settings. METHODS: A State Department of Education and University Extension system collaborated to develop an online nutrition training course for childcare providers. Providers (n = 57) participated in the course on CACFP nutrition standards related to feeding infants (0-12 months of age). Thirty-two of 57 participants completed both pre- and post-training surveys that were used to assess changes in knowledge and confidence concerning infant feeding standards. Paired t-tests and Wilcoxon signed-rank tests were conducted to assess differences in survey responses before and after the course. RESULTS: Self-confidence and knowledge of providers related to infant feeding were significantly increased after completion of the training course (p < 0.001). More participants reported their sites were likely to respond to infants showing they were hungry or full than before the course (44.4% vs. 75.7%, respectively). Participant feedback indicated the online asynchronous course was convenient, useful, and topics were relevant to training needs. DISCUSSION: The online course was feasible and effective for providing training on CACFP guidelines for childcare providers. Feedback from participants can be adapted and used for future training programs to further improve the course and delivery methods and efficiently reach a broad audience of childcare providers.


Subject(s)
Child Care , Child Day Care Centers , Child , Infant , Adult , Humans , Nutritional Status , Meals , Infant Care , Nutrition Policy
2.
Glia ; 71(5): 1294-1310, 2023 05.
Article in English | MEDLINE | ID: mdl-36655313

ABSTRACT

PTEN-induced kinase 1 (PINK1) is a well-known critical marker in the pathway for mitophagy regulation as well as mitochondrial dysfunction. Evidence suggests that mitochondrial dynamics and mitophagy flux play an important role in the development of brain damage from stroke pathogenesis. In this study, we propose a treatment strategy using nanoparticles that can control PINK1. We used a murine photothrombotic ischemic stroke (PTS) model in which clogging of blood vessels is induced with Rose Bengal (RB) to cause brain damage. We targeted PINK1 with poly(lactic-co-glycolic acid) (PLGA)-based nanoparticles loaded with PINK1 siRNA (PINK1 NPs). After characterizing siRNA loading in the nanoparticles, we assessed the efficacy of PINK1 NPs in mice with PTS using immunohistochemistry, 1% 2,3,5-triphenyltetrazolium chloride staining, measurement of motor dysfunction, and Western blot. PINK1 was highly expressed in microglia 24 h after PTS induction. PINK1 siRNA treatment increased phagocytic activity, migration, and expression of an anti-inflammatory state in microglia. In addition, the PLGA nanoparticles were selectively taken up by microglia and specifically regulated PINK1 expression in those cells. Treatment with PINK1 NPs prior to stroke induction reduced expression of mitophagy-inducing factors, infarct volume, and motor dysfunction in mice with photothrombotic ischemia. Experiments with PINK1-knockout mice and microglia depletion with PLX3397 confirmed a decrease in stroke-induced infarct volume and behavioral dysfunction. Application of nanoparticles for PINK1 inhibition attenuates RB-induced photothrombotic ischemic injury by inhibiting microglia responses, suggesting that a nanomedical approach targeting the PINK1 pathway may provide a therapeutic avenue for stroke treatment.


Subject(s)
Ischemic Stroke , Nanoparticles , Stroke , Mice , Animals , RNA, Small Interfering/genetics , RNA, Small Interfering/therapeutic use , RNA, Small Interfering/metabolism , Polylactic Acid-Polyglycolic Acid Copolymer , Neuroprotection , Glycols , Disease Models, Animal , Ischemia , Stroke/drug therapy , Stroke/etiology , Mice, Knockout , Protein Kinases/genetics , Protein Kinases/metabolism , Nanoparticles/therapeutic use , Infarction
3.
Int J Mol Sci ; 23(22)2022 Nov 16.
Article in English | MEDLINE | ID: mdl-36430603

ABSTRACT

Oxygenated water (OW) contains more oxygen than normal drinking water. It may induce oxygen enrichment in the blood and reduce oxidative stress. Hypoxia and oxidative stress could be involved in epilepsy. We aimed to examine the effects of OW-treated vs. control on four rodent models of epilepsy: (1) prenatal betamethasone priming with postnatal N-methyl-D-aspartate (NMDA)-triggered spasm, (2) no prenatal betamethasone, (3) repetitive kainate injection, and (4) intraperitoneal pilocarpine. We evaluated, in (1) and (2), the latency to onset and the total number of spasms; (3) the number of kainate injections required to induce epileptic seizures; (4) spontaneous recurrent seizures (SRS) (numbers and duration). In model (1), the OW-treated group showed significantly increased latency to onset and a decreased total number of spasms; in (2), OW completely inhibited spasms; in (3), the OW-treated group showed a significantly decreased number of injections required to induce epileptic seizures; and in (4), in the OW-treated group, the duration of a single SRS was significantly reduced. In summary, OW may increase the seizure threshold. Although the underlying mechanism remains unclear, OW may provide an adjunctive alternative for patients with refractory epilepsy.


Subject(s)
Epilepsy , Rodentia , Animals , Kainic Acid , Water , Seizures/chemically induced , Seizures/drug therapy , Spasm , Betamethasone , Oxygen
4.
J Sci Food Agric ; 102(10): 4079-4085, 2022 Aug 15.
Article in English | MEDLINE | ID: mdl-34997580

ABSTRACT

BACKGROUND: Exposure to environmental chemicals has been linked with endothelial dysfunction, which is a leading cause of human diseases, including atherosclerosis. Permethrin is a frequently used synthetic pyrethroid insecticide for which longer exposure may cause toxicity in several types of tissues and the development of metabolic diseases, including atherosclerosis, obesity and diabetes. The present study was designed to evaluate the potential adverse effect of permethrin on the function and activity of human endothelial cells. RESULTS: Permethrin was found to repress migration and tube formation by human umbilical vein endothelial cells (HUVECs) in a dose-dependent manner, as well as to significantly repress their viability after 24 and 48 h of treatment. Furthermore, increased reactive oxygen species (ROS) production was observed in cells treated with permethrin, and the permethrin-induced repression of cell viability was ROS-dependent. Permethrin did not influence apoptosis, necrosis or mitochondrial membrane potential in HUVECs. CONCLUSION: The results of the present study suggest that permethrin represses angiogenesis and viability through ROS-dependent and cell growth-, apoptosis- and necrosis-independent means. © 2022 Society of Chemical Industry.


Subject(s)
Atherosclerosis , Permethrin , Apoptosis , Human Umbilical Vein Endothelial Cells/metabolism , Humans , Necrosis , Permethrin/toxicity , Reactive Oxygen Species/metabolism
5.
Public Health Nutr ; : 1-8, 2021 Oct 08.
Article in English | MEDLINE | ID: mdl-34620256

ABSTRACT

OBJECTIVES: (1) To examine total quality of foods consumed on the day a home-delivered meal (HDM) of the Older Americans Act Nutrition Program (OAANSP) was served, and when a HDM was not served; and (2) to estimate proportion of HDM participants and non-participants meeting the daily average recommendations for guidance-based foods and nutrients. DESIGN: Cross-sectional study. SETTING: Data were obtained from the national 2015-2017 Outcomes Evaluation Study of HDM participants in the USA. PARTICIPANTS: Adults aged 67 years and older (n 1227), 620 HDM recipients and 607 matching non-participants examined in three groups: (1) meal recipients who received a HDM on the day of the 24-h dietary recall; (2) no-meal recipients who did not receive a HDM on the day of the recall and (3) matching HDM non-participants. RESULTS: Healthy Eating Index (HEI)-2010 scores of HDM participants were significantly lower on the day the meal was not received compared with when a meal was received (52·5 v. 63·4, P < 0·0001). There was no significant difference in the total HEI-2010 scores of HDM meal recipients and HDM non-participants. Despite the meal, less than 20 % of HDM participants and non-participants met the 2010-Diet Guidelines for Americans recommended average daily intake for fruit, vegetables, dairy, protein foods and solid fats. CONCLUSION: HDM participants' diet quality is poorer when they do not receive a meal putting them at increased risk of malnutrition. Expanding the OAANSP to offer meals on weekends and/or to include more than one meal/d is recommended to improve the diet of this vulnerable population.

6.
Int J Mol Sci ; 21(10)2020 May 24.
Article in English | MEDLINE | ID: mdl-32456353

ABSTRACT

Neonatal ischemic stroke has a higher incidence than childhood stroke. Seizures are the first sign for the need for clinical assessment in neonates, but many questions remain regarding treatments and follow-up modalities. In the absence of a known pathophysiological mechanism, only supportive care is currently provided. Stroke-induced microglia activation and neuroinflammation are believed to play a central role in the pathological progression of neonatal ischemic stroke. We induced a photothrombotic infarction with Rose Bengal in neonatal rats to investigate the effects of pre- and post-treatment with Aspirin (ASA), Clopidogrel (Clop), and Coenzyme Q10 (CoQ10), which are known for their neuroprotective effects in adult stroke. Pre-stroke medication ameliorates cerebral ischemic injury and reduces infarct volume by reducing microglia activation, cellular reactive oxygen species (ROS) production, and cytokine release. Post-stroke administration of ASA, Clop, and CoQ10 increased motor function and reduced the volume of infarction, and the statistical evidence was stronger than that seen in the pre-stroke treatment. In this study, we demonstrated that ASA, Clop, and CoQ10 treatment before and after the stroke reduced the scope of stroke lesions and increased behavioral activity. It suggests that ASA, Clop, and CoQ10 medication could significantly have neuroprotective effects in the neonates who have suffered strokes.


Subject(s)
Aspirin/therapeutic use , Clopidogrel/therapeutic use , Inflammation , Stroke/prevention & control , Ubiquinone/analogs & derivatives , Animals , Animals, Newborn , Aspirin/pharmacology , Brain Ischemia , Clopidogrel/pharmacology , Disease Models, Animal , Neuroprotective Agents/pharmacology , Neuroprotective Agents/therapeutic use , Rats , Rose Bengal/toxicity , Stroke/chemically induced , Ubiquinone/pharmacology , Ubiquinone/therapeutic use
7.
Biochem Biophys Res Commun ; 503(3): 1805-1811, 2018 09 10.
Article in English | MEDLINE | ID: mdl-30072100

ABSTRACT

Isocitrate dehydrogenase 2 (IDH2) is an essential enzyme in the mitochondrial antioxidant system, which produces nicotinamide adenine dinucleotide phosphate, and thereby defends against oxidative stress. We have shown that IDH2 downregulation results in mitochondrial dysfunction and reactive oxygen species (ROS) generation in mouse endothelial cells. The redox enzyme p66shc is a key factor in regulating the level of ROS in endothelial cells. In this study, we hypothesized that IDH2 knockdown-induced mitochondrial dysfunction stimulates endothelial inflammation, which might be regulated by p66shc-mediated oxidative stress. Our results showed that IDH2 downregulation led to mitochondrial dysfunction by decreasing the expression of mitochondrial oxidative phosphorylation complexes I, II, and IV, reducing oxygen consumption, and depolarizing mitochondrial membrane potential in human umbilical vein endothelial cells (HUVECs). The dysfunction not only increased mitochondrial ROS levels but also activated p66shc expression in HUVECs and IDH2 knockout mice. IDH2 deficiency increased intercellular adhesion molecule (ICAM)-1 expression and mRNA levels of pro-inflammatory cytokines (tumor necrosis factor [TNF]-α, and interleukin [IL]-1ß) in HUVECs. The mRNA expression of ICAM-1 in endothelial cells and plasma levels of TNF-α and IL-1ß were also markedly elevated in IDH2 knockout mice. However, p66shc knockdown rescued IDH2 deficiency-induced mitochondrial ROS levels, monocyte adhesion, ICAM-1, TNF-α, and IL-1ß expression in HUVECs. These findings suggest that IDH2 deficiency induced endothelial inflammation via p66shc-mediated mitochondrial oxidative stress.


Subject(s)
Endothelial Cells/metabolism , Inflammation/metabolism , Isocitrate Dehydrogenase/deficiency , Mitochondria/metabolism , Oxidative Stress , Animals , Cells, Cultured , Humans , Mice , Mice, Inbred C57BL , Mice, Knockout
8.
Neuroradiology ; 60(12): 1357-1360, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30338349

ABSTRACT

We report our initial experience of using a microcatheter for contact aspiration of acute distal occlusions for recanalization. Endovascular technique and a case using Excelsior XT-27 microcatheter are presented. After manual suction within distal middle cerebral artery segments using a 50-ml syringe, instant and complete recanalization was obtained. Microcatheter suction thrombectomy using a 50-ml syringe can be considered a feasible treatment option for acute distal small artery occlusions.


Subject(s)
Catheters , Endovascular Procedures/instrumentation , Intracranial Thrombosis/therapy , Suction/instrumentation , Thrombectomy/instrumentation , Cerebral Angiography , Diffusion Magnetic Resonance Imaging , Equipment Design , Humans , Intracranial Thrombosis/diagnostic imaging , Male , Middle Aged , Middle Cerebral Artery , Syringes
9.
J Korean Med Sci ; 33(11): e85, 2018 Mar 12.
Article in English | MEDLINE | ID: mdl-29495135

ABSTRACT

BACKGROUND: Stroke is the number one cause of adulthood disability in Korea. Rehabilitation after stroke can minimize functional disability, enhance recovery toward independence, and optimize community reintegration. The inter-departmental stroke meeting (IDSM) is a potential method to improve rehabilitation outcomes in patients with stroke. We aimed to analyze the effect of IDSM on rehabilitation after acute ischemic stroke management. METHODS: Medical records of 753 patients with acute ischemic stroke admitted to the neurology department of our medical center between January and December 2014 were reviewed retrospectively. In May 2014, weekly IDSMs were initiated. All physicians responsible for the patient's care reviewed patient treatment, methods of secondary prevention, and future rehabilitation plans. RESULTS: The transfer rate significantly increased after initiation of IDSM (phase 2, 3) and the length of stay (LOS) before transfer to the rehabilitation department decreased significantly from 9.68 ± 8.50 days to 5.75 ± 2.12 days. There was a reduction in the total LOS from 52 ± 28.57 days to 35 ± 27.21 days after IDSMs were introduced. In non-transferred patients also, the total LOS reduced significantly. The transfer rate increased significantly and the LOS before transfer to the rehabilitation department decreased significantly after implementation of IDSM in a subgroup of patients with moderate to severe stroke. CONCLUSION: The introduction of IDSM was significantly correlated with improvements in transfer rates and reduction of LOS in hospital. This finding shows that IDSMs are an important intervention to improve therapeutic progress and outcomes for patients with stroke.


Subject(s)
Stroke Rehabilitation , Stroke/pathology , Aged , Aged, 80 and over , Female , Humans , Length of Stay , Male , Middle Aged , Rehabilitation Centers , Retrospective Studies , Severity of Illness Index , Stroke/therapy , Tertiary Care Centers , Treatment Outcome
10.
J Clin Nurs ; 27(17-18): 3408-3417, 2018 Sep.
Article in English | MEDLINE | ID: mdl-28771983

ABSTRACT

AIMS AND OBJECTIVES: To describe obesity-risk behaviours (diet, physical activity and sedentary behaviour) and examine the relationships of the obesity-risk behaviours with body mass index (BMI) in school-aged Korean American children. BACKGROUND: Korean American children have a risk of becoming overweight or obese and developing obesity-related complications; however, there is limited research about obesity-risk behaviours in Korean American children. DESIGN: A cross-sectional study. METHODS: Obesity-risk behaviours of children were assessed with well-validated self-report questionnaires (i.e., Elementary-level School-based Nutrition Monitoring Questionnaire) from children and their mothers. Height and weight of children were measured. Data were analysed with bivariate and multivariate analyses using mixed effects models to incorporate the correlation within siblings. RESULTS: A total of 170 Korean American children (mean age 10.9 [2.0] years; 52.4% girls; mean BMI 19.3 [3.2]; 28.7% ≥85 percentiles) participated in the study. Only 38.3% of Korean American children met established recommendations of five fruits/vegetables per day; 56.5% met recommendations for more than 3 days per week of vigorous physical activity; and 40.8% met recommendations for <2 hr of recreational screen time per day. Sixty per cent and 88.8% of children met the recommendation of sleep on a weekday and weekend, respectively. Only screen time was positively associated with child BMI z-score (ß = 0.08; p < .03). CONCLUSION: Healthcare providers need to be aware of the increased rate of overweight and obesity in Korean American children and initiate clinical interventions to improve obesity-risk behaviours, especially sedentary behaviour, in Korean American children. RELEVANCE TO CLINICAL PRACTICE: Clinical assessment and management of the risk of developing overweight and obesity as well as obesity-related behaviours are important to improve obesity-related complications in overall Korean Americans.


Subject(s)
Asian , Diet, Healthy/statistics & numerical data , Exercise/physiology , Pediatric Obesity/ethnology , Adolescent , Asian/statistics & numerical data , Body Mass Index , Body Weight , Child , Cross-Sectional Studies , Female , Humans , Male , Pediatric Obesity/prevention & control , Prevalence , Republic of Korea/ethnology , Risk Factors , Risk-Taking , Sedentary Behavior/ethnology , Self Report
11.
Blood Press ; 26(4): 204-210, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28142262

ABSTRACT

BACKGROUND: Although brachial-ankle pulse wave velocity (baPWV) is well-known for predicting the cardiovascular mortality and morbidity, its anticipated value is not demonstrated well concerning acute stroke. METHODS: Total 1557 patients with acute stroke who performed baPWV were enrolled. We evaluated the prognostic value of baPWV predicting all-cause death and vascular death in patients with acute stroke Results: Highest quartile of baPWV was ≥23.64 m/s. All-caused deaths (including vascular death; 71) were 109 patients during follow-up periods (median 905 days). Multivariate Cox regression analysis revealed that patients with the highest quartile of baPWV had higher risk for vascular death when they are compared with patients with all other three quartiles of baPWV (Hazard ratio with 95% confidence interval [CI] 1.879 [1.022-3.456], p = .042 for vascular death). CONCLUSION: High baPWV was a strong prognostic value of vascular death in patients with acute stroke.


Subject(s)
Ankle Brachial Index/methods , Pulse Wave Analysis/methods , Stroke/diagnosis , Aged , Female , Humans , Male , Prognosis , Stroke/mortality
12.
J Adv Nurs ; 73(8): 1896-1909, 2017 Aug.
Article in English | MEDLINE | ID: mdl-28181307

ABSTRACT

AIMS: To examine factors associated with children's body mass index and obesity-risk behaviours in Korean American families. BACKGROUND: Limited data are available about family factors related to overweight and obesity in Korean American children. DESIGN: A cross-sectional study. METHODS: Convenient sampling was employed to recruit Korean American families in the Northeast of the United States between August 2014 and January 2015. Child, family and societal/demographic/community factors were measured with self-report questionnaires completed by mothers and children. Height and weight were measured to calculate body mass index. Data were analyzed using mixed effects models incorporating within-group correlation in siblings. RESULTS: The sample included 170 Korean American children and 137 mothers. In bivariate analyses, more child screen time, number of children in the household, greater parental underestimation of child's weight and children's participation in the school lunch program were significantly associated with higher child body mass index. In multivariate analyses that included variables showing significant bivariate relationship, no variable was associated with child body mass index. CONCLUSION: There were no child, family and societal/demographic/community factors related to child body mass index in Korean American families in the multivariate analysis, which is contrary to research in other racial/ethnic groups. In bivariate analyses, there is evidence that some factors were significantly related to child body mass index. Further research is needed to understand the unique behavioural, social and cultural features that contribute to childhood obesity in Korean American families.


Subject(s)
Pediatric Obesity/ethnology , Adolescent , Asian/statistics & numerical data , Body Mass Index , Child , Cross-Sectional Studies , Exercise/physiology , Female , Humans , Male , Mothers/statistics & numerical data , New England/epidemiology , Pediatric Obesity/physiopathology , Socioeconomic Factors
13.
Health Promot Pract ; 18(6): 789-797, 2017 11.
Article in English | MEDLINE | ID: mdl-28760008

ABSTRACT

BACKGROUND: Young adults living with type 1 diabetes (T1DM) often encounter poor health outcomes, such as uncontrolled blood glucose levels. Social support programs can be a helpful method to support T1DM self-management. Effectively planning and tailoring social support programs for young adults living with T1DM are crucial for improving these programs and associated outcomes. OBJECTIVES: This study convened an expert panel primarily composed of young adults living with T1DM to generate ideas and key components for sequential inclusion in social support programs prioritizing them. METHOD: Exploratory expert panel meetings consisting of four individuals living with T1DM were held where Nominal Group Technique and Ideawriting exercises were used to develop themes and discussion points. RESULTS: Six themes emerged from the meetings representing areas of difficulty for young adults living with T1DM. Topics such as following self-care recommendations, nutrition, handling stress, coping with social situations, and navigating the health care system were identified as important issues facing young adults. CONCLUSIONS: By incorporating this approach into new or existing support group improved program discussions for young adults can be achieved and pertinent issues addressed, thus leading to improved health care outcomes.


Subject(s)
Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Self-Management , Social Support , Adaptation, Psychological , Diet , Humans , Program Development , Social Environment , Stress, Psychological/psychology , Young Adult
14.
J Korean Med Sci ; 31(8): 1239-45, 2016 Aug.
Article in English | MEDLINE | ID: mdl-27478334

ABSTRACT

In this study, we characterized cerebral blood flow changes by assessment of blood flow parameters in neck arteries using carotid duplex ultrasonography and predictive factors for these hemodynamic changes. Hemodynamic variables were measured before and during hemodialysis in 81 patients with an arteriovenous access in their arm. Hemodialysis produced significant lowering in peak systolic velocity and flow volume of neck arteries and calculated total cerebral blood flow (1,221.9 ± 344.9 [before hemodialysis] vs. 1,085.8 ± 319.2 [during hemodialysis], P < 0.001). Effects were greater in vessels on the same side as the arteriovenous access and these changes were influenced by arteriovenous access flow during hemodialysis, both in the CCA (r = -0.277, P = 0.015) and the VA (r = -0.239, P = 0.034). The change of total cerebral blood flow during hemodialysis was independently related with age, presence of diabetes, and systemic blood pressure.


Subject(s)
Cerebrovascular Circulation/physiology , Hemodynamics/physiology , Kidney Failure, Chronic/physiopathology , Aged , Carotid Arteries/diagnostic imaging , Dizziness/etiology , Female , Humans , Male , Middle Aged , Renal Dialysis , Risk Factors , Ultrasonography, Doppler, Duplex
15.
Korean J Physiol Pharmacol ; 20(5): 539-45, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27610041

ABSTRACT

Nafamostat mesilate (NM), a synthetic serine protease inhibitor, has anticoagulant and anti-inflammatory properties. The intracellular mediator and external anti-inflammatory external signal in the vascular wall have been reported to protect endothelial cells, in part due to nitric oxide (NO) production. This study was designed to examine whether NM exhibit endothelium dependent vascular relaxation through Akt/endothelial nitric oxide synthase (eNOS) activation and generation of NO. NM enhanced Akt/eNOS phosphorylation and NO production in a dose- and time-dependent manner in human umbilical vein endothelial cells (HUVECs) and aorta tissues obtained from rats treated with various concentrations of NM. NM concomitantly decreased arginase activity, which could increase the available arginine substrate for NO production. Moreover, we investigated whether NM increased NO bioavailability and decreased aortic relaxation response to an eNOS inhibitor in the aorta. These results suggest that NM increases NO generation via the Akt/eNOS signaling pathway, leading to endothelium-dependent vascular relaxation. Therefore, the vasorelaxing action of NM may contribute to the regulation of cardiovascular function.

16.
Korean J Physiol Pharmacol ; 19(3): 229-34, 2015 May.
Article in English | MEDLINE | ID: mdl-25954127

ABSTRACT

Nafamostat mesilate (NM) is a serine protease inhibitor with anticoagulant and anti-inflammatory effects. NM has been used in Asia for anticoagulation during extracorporeal circulation in patients undergoing continuous renal replacement therapy and extra corporeal membrane oxygenation. Oxidative stress is an independent risk factor for atherosclerotic vascular disease and is associated with vascular endothelial function. We investigated whether NM could inhibit endothelial dysfunction induced by tumor necrosis factor-α (TNF-α). Human umbilical vein endothelial cells (HUVECs) were treated with TNF-α for 24 h. The effects of NM on monocyte adhesion, vascular cell adhesion molecule-1 (VCAM-1) and intracellular adhesion molecule-1 (ICAM-1) protein expression, p38 mitogen-activated protein kinase (MAPK) activation, and intracellular superoxide production were then examined. NM (0.01~100 µg/mL) did not affect HUVEC viability; however, it inhibited the increases in reactive oxygen species (ROS) production and p66shc expression elicited by TNF-α (3 ng/mL), and it dose dependently prevented the TNF-α-induced upregulation of endothelial VCAM-1 and ICAM-1. In addition, it mitigated TNF-α-induced p38 MAPK phosphorylation and the adhesion of U937 monocytes. These data suggest that NM mitigates TNF-α-induced monocyte adhesion and the expression of endothelial cell adhesion molecules, and that the anti-adhesive effect of NM is mediated through the inhibition of p66shc, ROS production, and p38 MAPK activation.

17.
Stroke ; 45(1): 134-40, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24203846

ABSTRACT

BACKGROUND AND PURPOSE: Therapeutic hypothermia improves outcomes in experimental stroke models, especially after ischemia-reperfusion injury. We investigated the clinical and radiological effects of therapeutic hypothermia in acute ischemic stroke patients after recanalization. METHODS: A prospective cohort study at 2 stroke centers was performed. We enrolled patients with acute ischemic stroke in the anterior circulation with an initial National Institutes of Health Stroke Scale≥10 who had successful recanalization (≥thrombolysis in cerebral ischemia, 2b). Patients at center A underwent a mild hypothermia (34.5°C) protocol, which included mechanical ventilation, and 48-hour hypothermia and 48-hour rewarming. Patients at center B were treated according to the guidelines without hypothermia. Cerebral edema, hemorrhagic transformation, good outcome (3-month modified Rankin Scale, ≤2), mortality, and safety profiles were compared. Potential variables at baseline and during the therapy were analyzed to evaluate for independent predictors of good outcome. RESULTS: The hypothermia group (n=39) had less cerebral edema (P=0.001), hemorrhagic transformation (P=0.016), and better outcome (P=0.017) compared with the normothermia group (n=36). Mortality, hemicraniectomy rate, and medical complications were not statistically different. After adjustment for potential confounders, therapeutic hypothermia (odds ratio, 3.0; 95% confidence interval, 1.0-8.9; P=0.047) and distal occlusion (odds ratio, 7.3; 95% confidence interval; 1.3-40.3; P=0.022) were the independent predictors for good outcome. Absence of cerebral edema (odds ratio, 5.4; 95% confidence interval, 1.6-18.2; P=0.006) and no medical complications (odds ratio, 9.3; 95% confidence interval, 2.2-39.9; P=0.003) were also independent predictors for good outcome during the therapy. CONCLUSIONS: In patients with ischemic stroke, after successful recanalization, therapeutic hypothermia may reduce risk of cerebral edema and hemorrhagic transformation, and lead to improved clinical outcomes.


Subject(s)
Brain Ischemia/surgery , Cerebral Revascularization/methods , Hypothermia, Induced , Neurosurgical Procedures/methods , Postoperative Complications/prevention & control , Stroke/surgery , Aged , Brain Edema/epidemiology , Brain Edema/prevention & control , Cerebral Revascularization/adverse effects , Electrocardiography , Female , Humans , Hypothermia, Induced/adverse effects , Image Processing, Computer-Assisted , Male , Middle Aged , Monitoring, Intraoperative , Neurologic Examination , Neurosurgical Procedures/adverse effects , Postoperative Care , Postoperative Complications/epidemiology , Regression Analysis , Risk Factors , Tomography, X-Ray Computed , Treatment Outcome
18.
J Community Health ; 39(3): 446-53, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24338035

ABSTRACT

The purpose of this study was to examine the conceptual gap between self-perceived weight and body mass index (BMI), and to assess the knowledge gap between perceived importance of following dietary guidelines and health literacy levels. Adults (n = 131) eligible for the Supplemental Nutrition Assistance Program (SNAP) were interviewed at eleven SNAP regional offices in Maryland. Based on BMI calculated from self-reported height and weight, 65.6% of participants were overweight or obese while 40.5% perceived that they were overweight or obese. In sub-group analysis categorized by BMI, only 20.0% in the overweight and 20.0% in the obese group correctly perceived themselves as being overweight or obese. Following dietary guidelines was perceived as important by a majority of participants, but only 43.5% had adequate health literacy. Conceptual and knowledge gaps between self-perception and objective health status existed in the low-income SNAP-eligible sample. Future studies need to address these gaps because misperceived weight status and insufficient health literacy are critical barriers to inducing behavioral change.


Subject(s)
Body Weight , Food Assistance , Health Knowledge, Attitudes, Practice , Health Literacy , Adult , Body Mass Index , Female , Health Status , Humans , Male , Maryland , Middle Aged , Obesity/epidemiology , Qualitative Research
19.
J Cardiovasc Nurs ; 29(1): 55-67, 2014.
Article in English | MEDLINE | ID: mdl-23348221

ABSTRACT

BACKGROUND: High blood pressure (HBP) self-care is critical for the control of HBP. Adequate measurement of HBP self-care is a necessary first step toward ameliorating the global pandemic of HBP. OBJECTIVE: The aims of this study were to identify, describe, and critique existing HBP self-care instruments. The degree of adequacy of these instruments was evaluated against well-established behavioral guidelines for HBP care. METHODS: This review was limited to articles published in English before October 2012. In addition, the following criteria were used: (1) the study described the validity and/or the reliability of a self-care/self-management instrument and (2) the study targeted patients with hypertension. Electronic database searches identified 1701 potentially relevant articles. Two authors reviewed the titles and the abstracts of all the retrieved articles independently. On the basis of the inclusion and the exclusion criteria, as well as cross-referencing, 29 articles were included in this review. RESULTS: From the 29 articles, 19 unique HBP self-care instruments were identified (some were modified or translated versions of an original measure). Medication taking, a key domain of HBP self-care, was the main focus of 12 of the 19 instruments. Other key domains of HBP self-care were often missing or omitted. Seven instruments measured multiple dimensions of self-care; however, these either failed to capture all the main HBP self-care domains or had poor psychometric profiles. Nineteen of the 29 articles reported both validity and reliability, with varying degrees of rigor. CONCLUSIONS: The current assessment tools do not capture all the critical elements of HBP self-care. The few instruments that attempted to measure the multiple behavioral dimensions of HBP self-care failed to report adequate levels of psychometric properties of those domains because of their incompleteness. Challenges remain in translating the HBP self-care guidelines into effective intervention and relevant assessment tools. Developing a valid and reliable instrument that captures the multidimensional nature of HBP self-care is urgently needed.


Subject(s)
Hypertension/therapy , Self Care , Humans , Medication Adherence , Psychometrics
20.
J Stroke Cerebrovasc Dis ; 23(4): e283-9, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24529352

ABSTRACT

BACKGROUND: In acute ischemic stroke, the speed of improvement after intra-arterial thrombolytic therapy (IAT)-mediated recanalization varies. This study aimed to identify clinical and radiological variables that are predictive of early improvement (EI) after IAT in acute ischemic stroke. METHODS: This single-center retrospective cohort study included 141 consecutive patients who underwent IAT for terminal internal carotid and/or middle cerebral artery (MCA) occlusions. EI was defined as a National Institutes of Health Stroke Scale (NIHSS) score less than 3 or NIHSS score improvement of 8 points or more within 72 hours of IAT. The EI and non-EI groups were compared in terms of clinical and radiological findings before and after IAT. RESULTS: Forty-nine patients showed EI (34.8%). Multivariate analysis revealed that atrial fibrillation (odds ratio [OR] .35, 95% confidence interval [CI] .14-.89, P = .028) and hyperdense MCA sign (OR .39, CI .15-.97, P = .042) were related with lack of EI. The independent EI predictors were less extensive parenchymal lesion on baseline computed tomography (OR 4.92, CI 1.74-13.9, P = .003), intermediate to good collaterals (OR 3.28, CI 1.16-9.31, P = .026), and recanalization within 6 hours of symptom onset (OR 5.2, CI 1.81-14.94, P = .002). EI associated with favorable outcomes (modified Rankin scale score 0-2) at discharge (88% versus 7%; P < .001) and 3 months after discharge (92% versus 18%; P < .001). CONCLUSIONS: The clinical and radiological variables maybe useful for predicting EI and favorable long-term outcomes after IAT.


Subject(s)
Brain Ischemia/drug therapy , Stroke/drug therapy , Thrombolytic Therapy/methods , Aged , Atrial Fibrillation/complications , Brain Ischemia/complications , Brain Ischemia/diagnostic imaging , Cohort Studies , Female , Fibrinolytic Agents/administration & dosage , Fibrinolytic Agents/therapeutic use , Humans , Infarction, Middle Cerebral Artery/complications , Infarction, Middle Cerebral Artery/pathology , Injections, Intra-Arterial , Injections, Intravenous , Male , Middle Aged , Predictive Value of Tests , Radiography , Recovery of Function , Retrospective Studies , Stroke/complications , Stroke/diagnostic imaging , Tissue Plasminogen Activator/therapeutic use
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