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1.
IEEE Comput Graph Appl ; 40(1): 127-139, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31675320

RESUMO

We propose an interactive video completion method aiming for practical use in a digital production workplace. The results of earlier automatic solutions often require a considerable amount of manual modifications to make them usable in practice. To reduce such a laborious task, our method offers an efficient editing tool. Our iterative algorithm estimates the flow fields and colors in space-time holes in the video. As in earlier approaches, our algorithm uses an $L^1$L1 data term to estimate flow fields. However, we employ a novel $L^2$L2 data term to estimate temporally coherent color transitions. Our graphics processing unit implementation enables the user to interactively complete a video by drawing holes and immediately removes objects from the video. In addition, our method successfully interpolates sparse modifications initialized by the designer. According to our subjective evaluation, the videos completed with our method look significantly better than those with other state-of-the-art approaches.

2.
Medicine (Baltimore) ; 97(35): e11947, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30170389

RESUMO

Smoking cessation reduces the risk of cardiovascular disease and improves clinical outcomes. We studied the effect of smoking cessation on plasma levels of α-klotho, which is an antiaging protein. We treated 28 smokers (male:female = 23:5, 46 ±â€Š12 years) with varenicline (n = 14) or a transdermal nicotine patch (n = 14) as part of a 12-week smoking cessation program (the VN-SEESAW Study). Pulse rate, blood pressure, plasma levels of α-klotho, fibroblast growth factor (FGF)-19, FGF-21, hemoglobin (Hb), and expiratory carbon monoxide (CO) concentration were measured before and after the antismoking intervention. Smoking cessation significantly decreased pulse rate, α-klotho, Hb, and CO concentration, but not FGF-19 or FGF-21 in all subjects. On the contrary, body mass index significantly increased after the intervention. Changes in α-klotho levels (values at week 12 - values at week 0) were negatively associated with α-klotho levels at week 0 and positively associated with changes in Hb levels. In addition, the successful smoking cessation group (n = 21) showed significant reductions in pulse rate, systolic blood pressure, α-klotho, Hb, and CO concentration. In conclusion, smoking cessation significantly decreased serum levels of the antiaging molecule α-klotho. Our results are consistent with a previous report that an increase in α-klotho might be a compensatory response to smoking stress.


Assuntos
Fumar Cigarros/sangue , Glucuronidase/sangue , Abandono do Hábito de Fumar/métodos , Adulto , Pressão Sanguínea , Doenças Cardiovasculares/etiologia , Fumar Cigarros/efeitos adversos , Fumar Cigarros/terapia , Feminino , Fatores de Crescimento de Fibroblastos/sangue , Frequência Cardíaca , Humanos , Proteínas Klotho , Masculino , Pessoa de Meia-Idade , Agonistas Nicotínicos/uso terapêutico , Fatores de Risco , Dispositivos para o Abandono do Uso de Tabaco , Resultado do Tratamento , Vareniclina/uso terapêutico
3.
Chudoku Kenkyu ; 30(1): 25-30, 2017 Mar.
Artigo em Inglês, Japonês | MEDLINE | ID: mdl-30549924

RESUMO

To investigate the effectiveness of mamushi anti-venom, we examined the relationships between the length of hospital stay (LOS) and the anti-venom administration, LOS and intervals of the bite and administration of the anti-venom, and severity of the bite and initial laboratory data. The sample of this study was a total of 46 cases who were admitted for mamushi bite from 2003 to 2013 to our hospital. Data was collected from medical records retrospectively. The average LOS was significantly shorter in those treated with the anti-venom than without the antivenom (6.7 days vs 14.4 days, respectively). Out of the thirty six cases with the anti-venom therapy, the average LOS was significantly shorter if the anti-venom was administered within 6 hours of the bite than when administered after 6 hours (4.8 days vs 10.4 days, respectively). There was a moderate positive correlation between the severity of the bite and increase in ALT initial. Our results suggest that administration of the anti-venom reduces the length of hospitalization, especially when administered within 6 hours of the mamushi bites. A standardized treatment guideline for mamushi bite is anticipated to define appropriate time to administer the anti-venom from the onset, biochemical data to predict severity of the injury at the initial assessment, by collecting patient data.


Assuntos
Agkistrodon , Antivenenos/uso terapêutico , Mordeduras de Serpentes/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Intervenção Médica Precoce , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Adulto Jovem
4.
Springerplus ; 5(1): 1872, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27822446

RESUMO

BACKGROUND: During oxaliplatin chemotherapy administration via a peripheral vein, vascular pain requires changing of the intravenous infusion route on occasion. Vascular pain induced by anticancer drugs reduces the rate of patient continuation and completion of chemotherapy. Pain is presently appraised using subjective methods, such as the visual analog scale (VAS). However, because pain evaluation can vary depending on the physical state and mood of the patient at the time of assessment, it is desirable to evaluate pain objectively. PainVision PS-2100 (PV) is a medical device that was designed to objectively and quantitatively assess patient nociception and perception. METHODS: The present study examined the correlation of subjective and objective assessment of oxaliplatin-induced vascular pain using VAS and PV, respectively. RESULTS: Vascular pain was assessed using both PV and VAS a total of 173 times for 58 colorectal cancer patients. Partial correlation analysis was performed to evaluate the relationship between PV and VAS. The mean PV and VAS scores were 44.5 (range: 0-596) and 24.8 (range: 0-100), respectively. The partial correlation coefficient was 0.408 (p < 0.0001). CONCLUSIONS: A strong correlation was not observed between the results, and a weak correlation was observed between VAS and PV scores. Objective evaluation of oxaliplatin-induced vascular pain will be required to help patients overcome vascular pain.

5.
BMC Res Notes ; 9: 115, 2016 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-26896465

RESUMO

BACKGROUND: Pain intensities of patients are repeatedly measured by Visual Analog Scale (VAS) and Pain Vision (PV) in a clinical research. Two measurements by VAS and PV are performed at the same time. In order to evaluate within patient consistency, intra-individual coefficient of variations (CVs) are compared between measures assuming that the pain status of each patient is stable during the research period. The correlated samples and different inter-individual variation due to different scales of the measures should be taken into account in statistical analysis. The adjustment of covariates will improve the estimation of population mean values of the measures. METHODS: In this paper, statistical approach to compare the intra-individual CVs is proposed. The approach consists of two steps: (1) estimating population mean values and intra-individual variances of the pain intensities by measure in a mixed effect model framework, (2) computing intra-individual CVs and comparing them between measures. The mixed effect model includes measure and some variables as fixed effects and subject by measure as a random effect. The different inter-individual variations between measures and their covariance reflect the paired sampling in the variance component. The confidence interval of the difference of intra-individual CVs is constructed using the asymptotic normality and the delta method. Bootstrap method is available if sample size is small. RESULTS: The proposed approach is illustrated using pain research data. Measure (VAS and PV), age and sex are included in the model as fixed effects. The confidence intervals of the difference of intra-individual CVs between measures are estimated by the asymptotic theory and by bootstrap using a subgroup resampling, respectively. Both confidence intervals are similar. CONCLUSION: The proposed approach is useful to compare two intra-individual CVs taking it into account to reflect the paired sampling, different inter-individual variations between measures and some covariates. Although the inclusion of covariates did not improve the goodness-of-fit in the illustration, the proposed model with covariates will improve the accuracy and/or precision if covariates truly influence response variable. This approach can be applicable with small modification to various situations.


Assuntos
Modelos Estatísticos , Medição da Dor/estatística & dados numéricos , Dor/diagnóstico , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Dor/fisiopatologia , Tamanho da Amostra , Fatores Sexuais
6.
Springerplus ; 4: 822, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26753110

RESUMO

Numbness and pain are currently evaluated using subjective methods such as the visual analog scale (VAS). However, because assessment of pain can vary greatly depending on the mood and physical state of the patient at the time of assessment, it is best to evaluate pain objectively. pain vision PS-2100 (PV) is an analytical instrument that was designed to quantitatively and objectively assess sense perception and nociception in patients. The present study examined the correlation of subjective and objective assessment of oxaliplatin-induced peripheral neuropathy (PN) using VAS and PV, respectively. The mean VAS and PV scores of PN were 20.5 (range 0-100) and 27.9 (range 0-416), respectively. The partial correlation coefficient was 0.274 (p = 0.0003). No strong correlation was observed between the results and a weak correlation was observed between VAS and PV.

7.
Circ J ; 78(12): 2955-62, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25319317

RESUMO

BACKGROUND: Smoking cessation reduces the risk of cardiovascular disease (CVD) and improves clinical outcomes in public health. We studied the effect of smoking cessation on high-density lipoprotein (HDL) functionality. METHODS AND RESULTS: We randomly treated 32 smokers with varenicline or a transdermal nicotine patch as part of a 12-week smoking cessation program (The VN-SEESAW Study). The plasma lipid profiles, plasma and HDL malondialdehyde (MDA) levels, HDL subfractions as analyzed by capillary isotachophoresis, cholesterol efflux capacity, and antiinflammatory activity of HDL were measured before and after the anti-smoking intervention. After smoking cessation, HDL-C, apoA-I levels and HDL subfractions were not significantly different from the respective baseline values. However, cholesterol efflux capacity and the HDL inflammatory index (HII) were significantly improved after smoking cessation. The changes in both parameters (%∆ cholesterol efflux capacity and ∆HII) were also significantly improved in the successful smoking cessation group compared with the unsuccessful group. The changes in cholesterol efflux capacity and HII also correlated with those in end-expiratory CO concentration and MDA in HDL, respectively. CONCLUSIONS: Our findings indicate that smoking cessation leads to improved HDL functionality, increased cholesterol efflux capacity and decreased HII, without changing HDL-C or apoA-I levels or HDL subfractions. This may be one of the mechanisms by which smoking cessation improves the risk of CVD.


Assuntos
Lipoproteínas HDL/sangue , Abandono do Hábito de Fumar , Fumar/sangue , 1-Alquil-2-acetilglicerofosfocolina Esterase/sangue , Administração Cutânea , Adulto , Apolipoproteína A-I/sangue , Benzazepinas/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Colesterol/metabolismo , HDL-Colesterol/sangue , Agonistas Colinérgicos/uso terapêutico , Feminino , Humanos , Inflamação , Peroxidação de Lipídeos/efeitos dos fármacos , Lipídeos/sangue , Macrófagos/metabolismo , Masculino , Malondialdeído/sangue , Pessoa de Meia-Idade , Nicotina/administração & dosagem , Nicotina/uso terapêutico , Oxirredução , Quinoxalinas/uso terapêutico , Receptores Nicotínicos , Fatores de Risco , Vareniclina
10.
Circ J ; 76(9): 2241-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22785328

RESUMO

BACKGROUND: The aim of the present study was to compare 2 direct measurements for low-density lipoprotein cholesterol (LDL-C) with the Friedewald calculation (LDL-C [F]) in serum and their relationship with size-and charge-based LDL subfractions in serum ultracentrifugation fractions in patients with hypercholesterolemia (HC). METHODS AND RESULTS: Serum samples from 283 HC patients who participated in a statin trial (the PATROL trial) were analyzed. Homogeneous assays for LDL-C were performed using reagents from Sekisui Medical (LDL-C [Se]) and Kyowa Medex (LDL-C [Ky]). Charge-based LDL subfractions were analyzed by capillary isotachophoresis (cITP). In whole serum in HC patients at baseline, LDL-C (Se) and LDL-C (Ky) negatively and positively deviated, respectively, from LDL-C (F). The negative deviation of LDL-C (Se) from LDL-C (F) increased with increasing LDL-C, while the positive deviation of LDL-C (Ky) from LDL-C (F) was positively correlated with charge-modified LDL (cmLDL) as analyzed by cITP. In serum d>1.006 g/ml and >1.040 g/ml fractions (LDL and small, dense LDL fractions, respectively), the deviation of LDL-C (Ky) from LDL-C (Se) was positively correlated with LDL-apoB (the number of LDL particles) and cmLDL. CONCLUSIONS: The 2 homogenous assays for LDL-C differed with regard to reactivity toward LDL particles and cmLDL in patients with HC. Direct measurement of LDL-C that reflects modified LDL, could be a better marker for the risk of coronary heart disease.


Assuntos
LDL-Colesterol/sangue , Doença das Coronárias/sangue , Hipercolesterolemia/sangue , Apolipoproteínas B/sangue , Biomarcadores/sangue , Feminino , Humanos , Masculino , Ultracentrifugação
11.
Circ J ; 76(6): 1335-44, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22739083

RESUMO

BACKGROUND: Dietary habits are associated with obesity, and both are important contributing factors to lifestyle-related diseases. The STYLIST study examined the effects of dietary counseling by registered dietitians and the delivery of proper calorie-controlled meals (UMIN Registration No: 000006582). METHODS AND RESULTS: Two-hundred adult patients with hypertension and/or diabetes mellitus were randomly divided into 2 groups with/without dietary counseling and consumed an ordinary diet for 4 weeks. Each group was then subdivided into 2 groups with/without dietary counseling and received calorie-controlled lunch and dinner boxes for the next 4 weeks. The calories in the delivered meals were based on the subject's ideal body weight (BW) and physical activity level. BW, waist circumference, blood pressure, and laboratory data, including glycoalbumin, were measured at 0, 4, and 8 weeks. BW and the other parameters were significantly reduced during the study period in patients who received diet counseling in the ordinary diet period and/or delivered meal period but not in patients without dietary counseling, as assessed by linear mixed models for longitudinal data. CONCLUSIONS: The combination of dietary counseling by dietitians and delivery of calorie-controlled meals was effective in reducing BW, as well as blood pressure and glycoalbumin, in patients with hypertension and/or diabetes mellitus.


Assuntos
Restrição Calórica , Aconselhamento , Diabetes Mellitus Tipo 2/dietoterapia , Hipertensão/dietoterapia , Obesidade/dietoterapia , Comportamento de Redução do Risco , Adulto , Idoso , Biomarcadores/sangue , Pressão Sanguínea , Distribuição de Qui-Quadrado , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/etiologia , Feminino , Produtos Finais de Glicação Avançada , Humanos , Hipertensão/diagnóstico , Hipertensão/etiologia , Japão , Análise dos Mínimos Quadrados , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/diagnóstico , Albumina Sérica/metabolismo , Método Simples-Cego , Fatores de Tempo , Resultado do Tratamento , Circunferência da Cintura , Redução de Peso , Adulto Jovem , Albumina Sérica Glicada
14.
Circ J ; 75(9): 2235-43, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21768737

RESUMO

BACKGROUND: The purpose of the present study was to clarify the efficacy of soy at reducing visceral fat. A randomized, double-blind, controlled, comparative trial was carried out to compare formula food containing soy protein (SP) to the same food in which soy was replaced with milk protein (MP). METHODS AND RESULTS: Forty-eight participants were enrolled for the treatment of visceral fat obesity (visceral fat area >100 cm² on computed tomography). The SP formula contained 12 g of SP, 9 g of MP, and other nutrients, and was given for 20 weeks in the morning, while in the MP formula SP was replaced with MP. During the 20 weeks of the trial period, visceral fat area and subcutaneous fat area in the MP group were significantly reduced, while those in the SP group did not change as assessed on analysis of covariance. Although waist circumference was reduced in both the SP and MP groups, body weight and body mass index were significantly reduced only in the MP group. Based on a mixed-effects model, the difference in log-transformed visceral fat profiles between the 2 groups was statistically significant (P<0.05), while a negative relationship was observed between the changes in visceral fat and adiponectin in the MP group (P<0.001), but not in the SP group. CONCLUSIONS: Formula food containing MP is superior to that containing SP for reducing visceral and subcutaneous fat.


Assuntos
Dieta , Gordura Intra-Abdominal/patologia , Proteínas do Leite/administração & dosagem , Obesidade Abdominal , Proteínas de Soja/administração & dosagem , Gordura Subcutânea/patologia , Adulto , Idoso , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade Abdominal/dietoterapia , Obesidade Abdominal/patologia , Fatores de Tempo
15.
Circ J ; 75(6): 1493-505, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21498906

RESUMO

BACKGROUND: Atorvastatin, rosuvastatin and pitavastatin are available for intensive, aggressive low-density lipoprotein cholesterol (LDL-C)-lowering therapy in clinical practice. The objective of the Randomized Head-to-Head Comparison of Pitavastatin, Atorvastatin, and Rosuvastatin for Safety and Efficacy (Quantity and Quality of LDL) (PATROL) Trial was to compare the safety and efficacy of atorvastatin, rosuvastatin and pitavastatin head to head in patients with hypercholesterolemia. This is the first prospective randomized multi-center trial to compare these strong statins (UMIN Registration No: 000000586). METHODS AND RESULTS: Patients with risk factors for coronary artery disease and elevated LDL-C levels were randomized to receive atorvastatin (10mg/day), rosuvastatin (2.5mg/day), or pitavastatin (2mg/day) for 16 weeks. Safety was assessed in terms of adverse event rates, including abnormal clinical laboratory variables related to liver and kidney function and skeletal muscle. Efficacy was assessed by the changes in the levels and patterns of lipoproteins. Three hundred and two patients (from 51 centers) were enrolled, and these 3 strong statins equally reduced LDL-C and LDL particles, as well as fast-migrating LDL (modified LDL) by 40-45%. Newly developed pitavastatin was non-inferior to the other 2 statins in lowering LDL-C. There were no differences in the rate of adverse drug reactions among the 3 groups, but HbA(1c) was increased while uric acid was decreased in the atorvastatin and rosuvastatin groups. CONCLUSIONS: The safety and efficacy of these 3 strong statins are equal. It is suggested that the use of these 3 statins be completely dependent on physician discretion based on patient background.


Assuntos
LDL-Colesterol/sangue , Fluorbenzenos/uso terapêutico , Ácidos Heptanoicos/uso terapêutico , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hipercolesterolemia/tratamento farmacológico , Pirimidinas/uso terapêutico , Pirróis/uso terapêutico , Quinolinas/uso terapêutico , Sulfonamidas/uso terapêutico , Idoso , Análise de Variância , Atorvastatina , Biomarcadores/sangue , Feminino , Fluorbenzenos/efeitos adversos , Ácidos Heptanoicos/efeitos adversos , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Hipercolesterolemia/sangue , Japão , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Estudos Prospectivos , Pirimidinas/efeitos adversos , Pirróis/efeitos adversos , Quinolinas/efeitos adversos , Rosuvastatina Cálcica , Sulfonamidas/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
17.
Circ J ; 74(4): 771-8, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20154405

RESUMO

BACKGROUND: It has been suggested that anti-smoking therapy gives encouraging results, but this has not been verified by well-randomized study protocols. The present study was a randomized controlled trial of varenicline vs nicotine patch in adult smokers for comparison of efficacy, safety and withdrawal symptoms. METHODS AND RESULTS: The 32 adult smokers were randomly divided into a varenicline group (VG, n=16) and a nicotine patch group (NG, n=16). The primary endpoints were the 12- and 24-week smoking-abstinence rates, safety and withdrawal symptoms including stress. No significant difference in abstinence rates was observed between the 2 groups over weeks 9-12 (71.4% vs 78.6% in the VG and NG, respectively), and weeks 9-24 (64.3% vs 71.4%, respectively). The frequencies of inability to concentrate at 2, 4, and 8 weeks, and wakeful nights at 2 weeks were higher in the VG than in the NG. Adverse side-effects associated with a gastrointestinal disorder occurred in 14 cases and 1 case in the VG and NG, respectively, and skin allergy was seen in 0 and 9 cases, respectively. CONCLUSIONS: The selection of treatment depends on the balance of desired acuteness of cessation of smoking and side-effects, such as psychiatric and gastrointestinal problems or skin allergy.


Assuntos
Benzazepinas/efeitos adversos , Benzazepinas/uso terapêutico , Nicotina/efeitos adversos , Nicotina/uso terapêutico , Quinoxalinas/efeitos adversos , Quinoxalinas/uso terapêutico , Abandono do Hábito de Fumar/métodos , Fumar/tratamento farmacológico , Síndrome de Abstinência a Substâncias/epidemiologia , Administração Cutânea , Adulto , Benzazepinas/administração & dosagem , Emoções , Determinação de Ponto Final , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Nicotina/administração & dosagem , Agonistas Nicotínicos/administração & dosagem , Agonistas Nicotínicos/efeitos adversos , Agonistas Nicotínicos/uso terapêutico , Quinoxalinas/administração & dosagem , Fatores de Risco , Fumar/psicologia , Estresse Psicológico , Síndrome de Abstinência a Substâncias/psicologia , Resultado do Tratamento , Vareniclina
18.
J Lipid Res ; 50(9): 1832-41, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19056704

RESUMO

Electronegative LDL, a charge-modified LDL (cm-LDL) subfraction that is more negatively charged than normal LDL, has been shown to be inflammatory. We previously showed that pravastatin and simvastatin reduced the electronegative LDL subfraction, fast-migrating LDL (fLDL), as analyzed by capillary isotachophoresis (cITP). The present study examined the effects of rosuvastatin on the more electronegative LDL subfraction, very-fast-migrating LDL (vfLDL), and small, dense charge-modified LDL (sd-cm-LDL) subfractions. Patients with hypercholesterolemia or those who were being treated with statins (n = 81) were treated with or switched to 2.5 mg/d rosuvastatin for 3 months. Rosuvastatin treatment effectively reduced cITP cm-LDL subfractions of LDL (vfLDL and fLDL) or sdLDL (sd-vfLDL and sd-fLDL), which were closely related to each other but were different from the normal subfraction of LDL [slow-migrating LDL (sLDL)] or sdLDL (sd-sLDL) in their relation to the levels of remnant-like particle cholesterol (RLP-C), apolipoprotein (apo) C-II, and apoE. The percent changes in cm-LDL or sd-cm-LDL caused by rosuvastatin were correlated with those in the particle concentrations of LDL or sdLDL measured as LDL-apoB or sdLDL-apoB and the levels of HDL-C, RLP-C, apoC-II, and apoE. In conclusion, rosuvastatin effectively reduced both the vfLDL subfraction and sd-cm-LDL subfractions as analyzed by cITP.


Assuntos
Fluorbenzenos/farmacologia , Lipoproteínas LDL/química , Lipoproteínas LDL/metabolismo , Pirimidinas/farmacologia , Sulfonamidas/farmacologia , Apolipoproteínas/sangue , Biomarcadores/sangue , Colesterol/sangue , HDL-Colesterol/sangue , Doença das Coronárias/sangue , Doença das Coronárias/complicações , Eletroforese Capilar , Feminino , Humanos , Hipercolesterolemia/sangue , Hipercolesterolemia/complicações , Inflamação/sangue , Lipoproteínas/sangue , Lipoproteínas LDL/sangue , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Rosuvastatina Cálcica , Triglicerídeos/sangue
19.
Atherosclerosis ; 201(2): 353-9, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18395728

RESUMO

Various forms of atherogenic modified low-density lipoprotein (LDL) including oxidized LDL and small, dense LDL have increased negative charge as compared to normal LDL. Charge-modified LDL (electronegative LDL) and normal LDL subfractions in plasma are analyzed by capillary isotachophoresis (cITP) as fast-migrating LDL (fLDL) and slow-migrating LDL (sLDL). We examined the effects of pravastatin and simvastatin on charge-based LDL subfractions as determined by cITP in patients with hypercholesterolemia. Patients (n=72) with CHD or CHD risk factors and elevated LDL cholesterol (LDL-C) levels were randomly assigned to receive pravastatin or simvastatin. After treatment with statins for 3 and 6 months, both cITP fLDL and sLDL were reduced (p<0.05) from the baseline, but the effects did not differ between treatment with pravastatin and simvastatin. At baseline and after treatment for 3 months, cITP sLDL was correlated with LDL-C, but fLDL was correlated with inflammatory markers, high-sensitive C-reactive protein and LDL-associated platelet-activating factor acetylhydrolase, and atherogenic lipoproteins, remnant-like particle cholesterol and small, dense LDL cholesterol. In conclusion, cITP fLDL was related to inflammatory markers and atherogenic lipoproteins and was reduced by treatment with statins. Charge-modified LDL subfraction could be a potential marker for atherosclerosis and a target for therapy.


Assuntos
LDL-Colesterol/metabolismo , Doença das Coronárias/sangue , Doença das Coronárias/tratamento farmacológico , Idoso , Anticolesterolemiantes/uso terapêutico , Proteína C-Reativa/metabolismo , Feminino , Humanos , Hipercolesterolemia/sangue , Hipercolesterolemia/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Pravastatina/uso terapêutico , Fatores de Risco , Sinvastatina/uso terapêutico , Resultado do Tratamento , Triglicerídeos/metabolismo
20.
Atherosclerosis ; 191(1): 153-61, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16620837

RESUMO

OBJECTIVE: Both mildly modified LDL subfraction that carries a more-negative electric charge and remnant-like particles (RLP) are closely related to triglyceride (TG) levels. We examined the relation between the RLP-cholesterol (C) level and charge-based apolipoprotein (apo) B-containing lipoprotein subfractions as determined by capillary isotachophoresis (cITP) in patients with hypercholesterolemia. METHODS AND RESULTS: cITP apo B lipoprotein subfractions were identified by analyzing plasma depleted of the related lipoproteins. While fast-migrating triglyceride-rich lipoprotein (fTRL) subfraction contained both chylomicrons and VLDL fraction, slow TRL (sTRL) only contained VLDL. cITP fLDL also contained VLDL fraction, i.e., beta-VLDL. Levels of cITP fTRL and sTRL were significantly correlated with serum levels of TG, RLP-C, apo C-II, and C-III. Levels of cITP sTRL were also correlated with apo E. Levels of cITP fLDL were positively correlated with not only LDL-C levels but also levels of TG, RLP-C, apo C-II, C-III, and E. CONCLUSION: cITP fast LDL correlated with RLP-C levels and modified the relation between RLP-C and TG levels.


Assuntos
Apolipoproteínas B/sangue , Colesterol/sangue , Hipercolesterolemia/sangue , Lipoproteínas/sangue , Triglicerídeos/sangue , Adulto , Idoso , Eletroforese , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade
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