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1.
Adv Exp Med Biol ; 1232: 85-90, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31893398

RESUMEN

Delayed orthostatic hypotension (OH) is a minor subset of orthostatic dysregulation (OD). Cerebral blood oxygenation in juvenile patients with delayed OH has not been studied. We investigated the bilateral changes in cerebral oxygenation in the prefrontal cortex during an active standing test in 23 juvenile patients with delayed OH using near-infrared spectroscopy (NIRS). We measured the oxy-Hb, deoxy-Hb, and total-Hb during the active standing test. Four observations were made during the test: t1 in a resting supine position, t2 when maintaining blood pressure, and the remaining two (t3, t4) during hypotension. The concentration of oxy-Hb significantly decreased prior to satisfying the diagnostic criteria of delayed OH after standing and did not change thereafter. The concentration of deoxy-Hb increased gradually during the measurement periods. In addition, total-Hb increased from t2 to t3. There was no significant difference in the change in each Hb parameter between the left and right cerebral hemispheres. Our results indicate that NIRS parameters are more sensitive than blood pressure for the interpretation of cerebral autoregulation in juvenile patients with delayed OH.


Asunto(s)
Sistema Cardiovascular , Circulación Cerebrovascular , Hipotensión Ortostática , Oxígeno , Posición de Pie , Adolescente , Presión Sanguínea , Circulación Cerebrovascular/fisiología , Humanos , Hipotensión Ortostática/sangre , Hipotensión Ortostática/diagnóstico , Oxígeno/sangre , Espectroscopía Infrarroja Corta
2.
Adv Exp Med Biol ; 1232: 315-322, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-31893426

RESUMEN

We present an unobtrusive cuff-less sphygmomanometer based on contact-type and optical pulse sensors for continuous and minimally invasive monitoring of blood pressure (BP). We developed a cuff-less sphygmomanometer that utilizes the pulse arrival time (PAT) to estimate continuous BP. To assess its accuracy, we recruited 10 healthy subjects in whom we carried out BP studies using the cuff-less sphygmomanometer compared with a standard cuff-type device in a stationary sitting patient. Preliminary results showed that the mean difference (MD) of estimated systolic blood pressure and diastolic blood pressure were 0.96 ± 9.6 (mean ± SD) mmHg and 1.14 ± 7.5 mmHg, respectively, compared to the control. The corresponding correlation between the estimated BP values and controls were 0.78 for systolic blood pressure (p < 0.01) and 0.69 for diastolic blood pressure (p < 0.01); thus, there were significant correlations. These results suggest that the developed cuff-less sphygmomanometer has the potential for continuous BP monitoring. Finally, we conducted a preliminary study of simultaneous monitoring of cuff-less BP and near-infrared spectroscopy to evaluate the potential for assessment of autonomic nervous system functions during mental stress tasks.


Asunto(s)
Determinación de la Presión Sanguínea , Esfigmomanometros , Adulto , Sistema Nervioso Autónomo/fisiología , Presión Sanguínea , Determinación de la Presión Sanguínea/instrumentación , Electrocardiografía , Frecuencia Cardíaca , Humanos , Masculino , Monitoreo Fisiológico/instrumentación , Monitoreo Fisiológico/normas , Esfigmomanometros/normas , Adulto Joven
3.
J Sci Food Agric ; 100(2): 846-854, 2020 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-31646650

RESUMEN

BACKGROUND: Pomegranate has antioxidant, cardioprotective and anti-inflammatory properties. We designed a crossover study aimed at determining if consumption of pomegranate juice (PJ) improves lipid profile and oxidative and inflammatory biomarkers of hemodialysis patients. Forty-one hemodialysis patients were randomly assigned to one of two groups: PJ-treated group receiving 100 mL of natural PJ immediately after their dialysis session three times a week and the control group receiving the usual care. After 8 weeks, a 4-week washout period was established and then the role of the groups was exchanged. Lipid profile, blood pressure and oxidative and inflammatory biomarkers were measured before and after each sequence. RESULTS: Based on the results of intention-to-treat analysis, triglycerides were decreased in PJ condition and increased in the controls. Conversely, high-density lipoprotein cholesterol was increased in PJ and decreased in the control group. Total and low-density lipoprotein cholesterol did not significantly change in either condition. Systolic and diastolic blood pressure significantly decreased in PJ condition. Total antioxidant capacity increased in PJ condition (P < 0.001) and decreased in the controls (P < 0.001). Conversely, malondialdehyde and interleukin-6 decreased in PJ (P < 0.001) and increased in the control group (P ≤ 0.001). The changes of these biomarkers were significantly different between the two conditions. CONCLUSIONS: Eight-week PJ consumption showed beneficial effects on blood pressure, serum triglycerides, high-density lipoprotein cholesterol, oxidative stress and inflammation in hemodialysis patients. © 2019 Society of Chemical Industry.


Asunto(s)
Enfermedades Cardiovasculares/metabolismo , Jugos de Frutas y Vegetales/análisis , Insuficiencia Renal Crónica/dietoterapia , Adulto , Anciano , Presión Sanguínea , Enfermedades Cardiovasculares/inmunología , Enfermedades Cardiovasculares/fisiopatología , Enfermedades Cardiovasculares/prevención & control , Estudios Cruzados , Femenino , Humanos , Masculino , Malondialdehído/metabolismo , Persona de Mediana Edad , Estrés Oxidativo , Diálisis Renal , Insuficiencia Renal Crónica/complicaciones , Insuficiencia Renal Crónica/metabolismo , Insuficiencia Renal Crónica/terapia , Triglicéridos/metabolismo
4.
Food Chem ; 307: 125549, 2020 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-31648175

RESUMEN

The aim of this study was to determine the influence of static and multi-pulsed hydrostatic pressure processing (HPP) treatments on the polyphenolic profile, oxidoreductase activity, colour, and browning index of carrot juice. Phenolic acids, flavonoids, lignans and other polyphenols were the predominant polyphenols detected with Triple-TOF-LC-MS/MS. The highest concentration of ferulic acid, didymin, dihydro-p-coumaric acid, sesaminol and matairesinol isomers were found among all the compounds detected. After HPP treatment, irrespective of the pressures applied, new simple polyphenols like oleuropein, 4-vinylsyringol, isocoumarin, and 4-hydroxybenzaldehyde were detected. Both phenomena could be attributed to the release of bounded phenolic compounds after applying HPP, as well as enzymatic degradation and/or condensation. The highest inactivation of polyphenoloxidase (PPO) enzymes (57%) was obtained at 300 MPa × 3 pulses, and peroxidase (POD) enzymes (31%) at 600 MPa working in static mode. Significant changes in the colour parameters and browning index were observed in all HPP-treated juices.


Asunto(s)
Catecol Oxidasa/metabolismo , Daucus carota/química , Polifenoles/análisis , Presión Sanguínea , Cromatografía Liquida , Color , Daucus carota/enzimología , Espectrometría de Masas en Tándem
5.
J Sci Food Agric ; 100(1): 315-324, 2020 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-31525262

RESUMEN

BACKGROUND: In order to utilize tilapia skin gelatin hydrolysate protein, which is normally discarded as industrial waste in the process of fish manufacture, we study the in vivo and in vitro angiotensin-I-converting enzyme (ACE) inhibitory activity of the peptide Leu-Ser-Gly-Tyr-Gly-Pro (LSGYGP). The aim was to provide a pharmacological basis of the development of minimal side effects of ACE inhibitors by comparative analysis with captopril in molecular docking. RESULTS: This peptide from protein-rich wastes showed excellent ACE inhibitory activity (IC50  = 2.577 µmol L-1 ) and exhibited a mixed noncompetitive inhibitory pattern with Lineweaver-Burk plots. Furthermore, LSGYGP and captopril groups both showed significant decreases in blood pressure after 6 h and maintained good digestive stability over 4 h. Molecular bond interactions differentiate competitive captopril upon hydrogen bond interactions and Zn(II) interaction. The C-terminal Pro generates three interactions (hydrogen bonds, hydrophilic interactions and Van der Waals interactions) in the peptide and effectively interacts with the S1 and S2 pockets of ACE. CONCLUSION: LSGYGP, with an IC50 value of 2.577 µmol L-1 , has an antihypertensive effect in spontaneously hypertensive rats. Through comparison with captopril, this study revealed that LSGYGP may be a potential food-derived ACE inhibitory peptide and could act as a functional food ingredient to prevent hypertension. © 2019 Society of Chemical Industry.


Asunto(s)
Inhibidores de la Enzima Convertidora de Angiotensina/química , Antihipertensivos/química , Captopril/química , Hipertensión/tratamiento farmacológico , Péptidos/química , Secuencia de Aminoácidos , Inhibidores de la Enzima Convertidora de Angiotensina/administración & dosificación , Inhibidores de la Enzima Convertidora de Angiotensina/metabolismo , Animales , Antihipertensivos/administración & dosificación , Antihipertensivos/metabolismo , Presión Sanguínea/efectos de los fármacos , Captopril/administración & dosificación , Cíclidos , Digestión , Proteínas de Peces/química , Tracto Gastrointestinal/metabolismo , Humanos , Enlaces de Hidrógeno , Interacciones Hidrofóbicas e Hidrofílicas , Hipertensión/metabolismo , Hipertensión/fisiopatología , Cinética , Masculino , Simulación del Acoplamiento Molecular , Péptidos/metabolismo , Péptidos/farmacología , Peptidil-Dipeptidasa A/química , Peptidil-Dipeptidasa A/metabolismo , Hidrolisados de Proteína/química , Hidrolisados de Proteína/metabolismo , Ratas , Ratas Endogámicas SHR
6.
Food Chem ; 308: 125601, 2020 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-31670190

RESUMEN

The aim of this work was to analyse the hypotensive effect of amaranth protein/peptides on spontaneously hypertensive rats (SHR). The mechanism of action of these peptides was studied in vivo and ex vivo. We also tested the effect of protection against gastrointestinal digestion (GID) exerted by an O:W emulsion on the integrity of the antihypertensive peptides. All samples tested produced a decrease in blood pressure (SBP). The animals treated with emulsion (GE) and emulsion + peptide (GE+VIKP) showed the most significant reduction in the SBP (42 ±â€¯2 mmHg and 35 ±â€¯2 mmHg, respectively). The results presented suggest that after GID, a variety of peptides with biological activities were released or were resistant to this process. These peptides play a role in the regulation of the SBP by acting on plasma ACE, plasma renin and the vascular system. These results support the use of amaranth protein/peptides in the elaboration of functional foods for hypertensive individuals.


Asunto(s)
Amaranthus/química , Antihipertensivos/farmacología , Hipertensión/tratamiento farmacológico , Péptidos/farmacología , Sistema Renina-Angiotensina/efectos de los fármacos , Animales , Antihipertensivos/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Masculino , Péptidos/uso terapéutico , Proteínas de Plantas/farmacología , Proteínas de Plantas/uso terapéutico , Ratas , Ratas Endogámicas SHR
7.
Endocrinol. diabetes nutr. (Ed. impr.) ; 66(10): 628-638, dic. 2019. tab
Artículo en Inglés | IBECS | ID: ibc-184790

RESUMEN

Background: Studies trying to find the association between vitamin D status and metabolic syndrome (MetS) have led to inconsistent results, and community-based data for individuals living in the Middle East are limited. Objectives: To find out if MetS and its components are associated with vitamin D status among female teachers residing in Yazd city during winter 2015. Materials and methods: A total of 276 female teachers (case group, n = 124 and control group, n = 152) aged 20-60 years were included. Weight, height, waist circumference, blood pressure, daily energy intake, physical activity, serum 25 hydroxy vitamin D (25(OH)D3), fasting blood glucose, triglycerides and high-density lipoprotein cholesterol (HDL-C) levels were assessed. Logistic regression was used to examine the odds ratio of MetS according to vitamin D status. Results: Mean serum 25(OH)D3 was 32.79 ± 18.62 ng/ml and 33.73 ± 20.20, in females with and without MetS, respectively (P > 0.142). Compared to those with 25(OH)D3of < 20 ng/ml, the odds ratio for MetS was 1.01 (95% CI: 0.48-2.13) and 0.95 (95% CI: 0.56-1.60) for those with serum 25(OH)D3 levels of 20-29 ng/ml and ≥ 30 ng/ml, respectively (P trend = 0.84). The association remained insignificant after adjusting for potential confounders. Furthermore, vitamin D status was not associated with MetS components (P > 0.05). Conclusion: Although several studies have claimed the association between vitamin D status and MetS, we could not find a similar connection in a sample of Iranian female teachers. Prospective studies are needed to determine the possible effect of vitamin D in the development of MetS, particularly in the Yazd province


Antecedentes: Los estudios en busca de una asociación entre el estado de vitamina D y el síndrome metabólico (SM) han dado resultados no concluyentes, y los datos sobre comunidades de personas residentes en Oriente Próximo son limitados. Objetivos: Averiguar si existe asociación entre el SM y sus componentes y el estado de vitamina D en profesoras residentes en la ciudad de Yazd durante el invierno de 2015. Materiales y métodos: Se incluyó a un total de 276 profesoras (grupos de casos, n = 124 y grupo de control, n = 152) de 20-60 años de edad. Se determinaron el peso, la talla, el perímetro de la cintura, la presión arterial, la ingesta diaria de energía, la actividad física y los niveles de 25-hidroxivitamina D (25(OH)D3), glucosa en ayunas, triglicéridos y colesterol de las proteínas de alta densidad (C-HDL). Se utilizó regresión logística para determinar la razón de probabilidades de SM en función del estado de vitamina D. Resultados: La concentración sérica media de 25(OH)D3 era de 32,79 ± 18,62 ng/ml y 33,73 ± 20,20 en las mujeres con y sin SM, respectivamente (P > 0,142). En comparación con las que tenían < 20 ng/ml de 25(OH)D3, la razón de probabilidades de SM era 1,01 (IC al 95%, 0,48-2,13) y 0,95 (IC al 95%, 0,56-1,60) en las que tenían valores de 20-29 ng/ml y ≥ 30 ng/ml, respectivamente (tendencia de P = 0,84). La asociación seguía siendo no significativa después del ajuste por posibles factores de confusión. Además, el estado de vitamina D no se asociaba con los componentes del SM (P > 0,05). Conclusión: Aunque varios estudios han informado de una asociación entre el estado de la vitamina D y el SM, no pudimos hallar una relación similar en una muestra de profesoras iraníes. Se necesitan estudios prospectivos para determinar el posible efecto de la vitamina D en el desarrollo del SM, especialmente en la provincia de Yazd


Asunto(s)
Humanos , Femenino , Adulto , Persona de Mediana Edad , Vitamina D/administración & dosificación , Síndrome Metabólico/tratamiento farmacológico , Deficiencia de Vitamina D/dietoterapia , Irán , Modelos Logísticos , Peso por Estatura , Relación Cintura-Cadera , Presión Arterial , Presión Sanguínea , Ejercicio/fisiología
10.
Medicine (Baltimore) ; 98(50): e18100, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31852069

RESUMEN

INTRODUCTION: Pulse wave analysis is an emerging approach that analyzes parameters comprising strong predictors of cardiovascular (CV) events and all-cause mortality, especially in patients with high CV risk based on established risk factors. This study used the oscillometric method, provided by the Mobil-o-Graph (PWA-EMI GmbH, Stolberg, Germany) device, to compare data regarding the pulse wave analysis parameters in hypertensive nondiabetic and diabetic patients. MATERIAL AND METHODS: In this cross-sectional study, 276 individuals were examined in the academic hypertension outpatient care unit of the Federal University of the Triângulo, in Mineiro, Brazil, from January to December 2016. The pulse wave analysis was performed by oscillometry, and its parameters were acquired from all patients. RESULTS: Of the 276 patients, 99 were diabetic and 177 nondiabetic. The mean systolic and pulse central blood pressure were significantly higher in diabetic patients than in nondiabetic patients (P = .008 and.0003, respectively). The mean peripheral systolic blood pressure and pulse pressure were also significantly higher in the diabetic group (P = .001 and P < .0001, respectively). The average pulse wave velocity (PWV, m/s) was 9.4 ±â€Š1.6 and 8.8 ±â€Š1.6 in the diabetic and nondiabetic groups, respectively (P = .003). CONCLUSION: The group of hypertensive diabetic patients had significantly higher central blood pressure, peripheral blood pressure, and PWV than the hypertensive nondiabetic patients. The patients with overlapping established CV risk factors presented values of the pulse wave analysis parameters consistent with higher central pressure and greater arterial stiffness.


Asunto(s)
Atención Ambulatoria , Presión Sanguínea/fisiología , Diabetes Mellitus/fisiopatología , Hipertensión/fisiopatología , Oscilometría/métodos , Análisis de la Onda del Pulso/métodos , Rigidez Vascular/fisiología , Brasil/epidemiología , Estudios Transversales , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Hipertensión/diagnóstico , Hipertensión/epidemiología , Incidencia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Reproducibilidad de los Resultados , Factores de Riesgo , Sístole
11.
Bratisl Lek Listy ; 120(12): 894-898, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31855047

RESUMEN

OBJECTIVES: Central systolic blood pressure (CSBP) is the pressure in the root of aorta, which directly influences organs such as brain, heart and kidneys and is related to organ damage. Its value increases with the aortic stiffness. The aim of this study was to analyze the relationships of CSBP to aortic stiffness parameters. METHODS: Central blood pressure (BP) and related parameters were measured by Arteriograph, working based on oscillometric principle, using pulse wave analysis (PWA) approach. We examined 123 patients (69 females, 54 males) with a primary hypertension. RESULTS: Using a linear correlation analysis, we found that CSBP was correlated to aortic pulse wave velocity (PWV), aortic and brachial pulse pressure (PP), aortic augmentation index, return time of reflected pressure wave (RT) and aortic and brachial augmentation indexes. Multivariate analysis defines the aortic pulse pressure (PPao) as the most powerful parameter influencing CSBP. By an individual analysis of BP in each patient separately, we defined two different types of central hemodynamics; those with a higher CSBP than brachial SBP occur in stiffer aorta. CONCLUSION: The CSBP increases with aortic PP, the most powerful stiffness parameter of aorta. Higher CSBP than brachial SBP usually accompanies a stiffer aorta (Tab. 5, Ref. 19).


Asunto(s)
Presión Sanguínea/fisiología , Análisis de la Onda del Pulso/métodos , Rigidez Vascular , Presión Arterial , Determinación de la Presión Sanguínea , Femenino , Humanos , Masculino
12.
Kardiologiia ; 59(10S): 31-40, 2019 Jul 23.
Artículo en Ruso | MEDLINE | ID: mdl-31876460

RESUMEN

Purpos. To assess the effectiveness of preventive counseling with focus on diet modification followed by remote support via telephone on awareness of cardiovascular (CV) risk factors (RFs) in patients (pts) with high/very high CV risk. Material and methods. This is a prospective randomized controlled study of 100 pts with high/very high CV risk (5-9% and ≥10% according to the SCORE scale) and any 2 criteria for metabolic syndrome.  Pts were randomized into 2 groups in 1:1 ratio - the intervention group (n=50) and the control group (n=50). The intervention group received comprehensive preventive counseling with focus on diet modification followed by remote preventive counseling by phone every two weeks for the first 3 months after enrollment (a total of 6 sessions). The control group received usual care in Health centers which also included basic preventive counseling. A specially designed questionnaire was used to evaluate the awareness of the basic CV RFs, including open questions. The awareness was assessed at baseline, 6 and 12 months. Results. The groups were well balanced according to demographic and clinical features. The results of the study revealed an extremely low awareness of major CV RFs of pts in both groups at baseline: practically none of them indicated as RFs for cardiovascular disease elevated cholesterol (8,0% and 4,0%, respectively) and blood pressure (14.0% and 4.0%). At 6 month the level of awareness of CV RFs has increased significantly. Moreover, pts of the intervention group were more informed about elevated cholesterol (58,0% vs. 28,0%; p<0,01) and unhealthy diet (76,0% vs. 52,0%; p<0,05). At 12 month the level of awareness of CV RFs was significantly higher in both groups  to compare from baseline. Conclusion. Preventive counseling with focus on diet modification followed by 3 months  remote support via phone provided a significant improvement of awareness of CV RFs in pts with high/very high CV risk.


Asunto(s)
Enfermedades Cardiovasculares , Presión Sanguínea , Consejo , Humanos , Estudios Prospectivos , Factores de Riesgo
13.
Kardiologiia ; 59(11): 56-65, 2019 Dec 11.
Artículo en Ruso | MEDLINE | ID: mdl-31849300

RESUMEN

Blood pressure variability (BPV) is the fluctuations of blood pressure over a certain period of time under the influence of various factors. The issue of increased BPV is of particular clinical importance due to high predictive value of this parameter as a risk factor for fatal and non-fatal cardiovascular, cerebrovascular and renal events. It is proved that in the BPV increasing, the key role is played by impairments in arterial baroreflexes, which, in turn, are mediated by increased vascular stiffness, impact of angiotensin II and the sympathetic nervous system, endothelial dysfunction, nitric oxide deficiency and aging, including the vascular aging. Antihypertensive drugs that targeting largest amount of pathophysiological mechanisms in BPV increasing have a most advantages in correcting excessive pressure fluctuations. In this regard such drugs are perindopril and amlodipine, which can eliminate almost the entire spectrum of increased BPV causes and, therefore, optimally reduce the cardiovascular risk.


Asunto(s)
Antihipertensivos/uso terapéutico , Hipertensión , Presión Sanguínea , Determinación de la Presión Sanguínea , Humanos , Hipertensión/tratamiento farmacológico
14.
Kardiologiia ; 59(11S): 77-84, 2019 Sep 12.
Artículo en Ruso | MEDLINE | ID: mdl-31884944

RESUMEN

AIM: Analysis of antihypertensive treatment among different groups of patients with arterial hypertension from "EPOCHA" study 2017. MATERIALS AND METHODS: EPOCHA study is a representative sample of the European part of the Russian Federation was created in 2002 and re-examined in 2017. RESULTS: 34.6% of the effectively treated (ET) patients had one antihypertensive drug and 32,2% of the ineffective treatment (IT) patients, p=0.16. Two-component antihypertensive therapy was 45.9% and 44.9%, respectively, p=0.56. Three antihypertensive drugs had 17.9% of the ET patients and 20.7% of the IT patients, p=0.05. Four antihypertensive drugs had 1.6% of the ET patients and 2.2% of the IT patients. The frequency of use of renin-angiotensin-aldosterone system blockers in the group of ET patients was 85.0%, which was significantly lower than 91.6% in the group of IT patients, р<0.0001. CONCLUSION: EPOCHA study shows that structure of antihypertensive therapy does not differ between ET and IT patients what is caused lack of medical supervision for patients with hypertension in real clinical practice.


Asunto(s)
Hipertensión , Antihipertensivos , Presión Sanguínea , Humanos , Sistema Renina-Angiotensina , Federación de Rusia
15.
Zhongguo Zhong Yao Za Zhi ; 44(22): 4896-4904, 2019 Nov.
Artículo en Chino | MEDLINE | ID: mdl-31872598

RESUMEN

Previous studies of Dendrobium officinale on anti-hypertension effect always focused only on the blood pressure,while polysaccharides of D. officinale( DOP) have been traditionally considered as one of the main effective substances. This study aimed to evaluate the effect of ethanol extract from D. officinale( DOE) on blood pressure,Glu and lipid profile in metabolic hypertensive rats induced by comprehensive dietary factors,and elucidate the composition of effective fractions from DOE. A metabolic hypertension model of rat induced by high-sugar,high-fat diet and alcohol drinking was adopted to evaluate the effect of DOE on hypertension and other metabolic disorders. Blood pressure,Glu and lipid profile were detected to find the features and differences of DOE and DOP on metabolic hypertension. Furthermore,DOE was separated with three different common solvents according to the polarity. Along with blood pressure,Glu,UA and lipid profile,hemorheology,oxidative index and aortas structure changes were adopted to evaluate the comprehensive effects of the most effective fractions on metabolic hypertension. Finally,HPLC-DAD-MS was adopted to identify the components of the most effective fraction. The SBP and Glu of models were decreased significantly after administration of DOE and DOP for 6 weeks,while TG in DOE groups also reduced dramatically. The DOE was separated with ether,n-butanol respectively and named NAF,NBF and NCF. SBP,TG,Glu,UA of model rats were decreased significantly after 4 weeks administration with NBF. The level of MDA in serum was down-regulated,while GSH-Px and T-AOC were up-regulated obviously after 12 weeks.And the blood viscosity also obviously decreased,with less collagen deposition of aortas by Masson's trichrome staining. NBF was mainly composed of phenols and flavone C-glycosides,whose aglycone was apigenin,and monosaccharide was connected to C-6 and C-8. Ethanol extract from D.officinale has an positive effect in alleviating hypertension and metabolic disorders in metabolic hypertension. Medium polarity fraction was the effective fraction of alcohol extraction from D. officinale,and mainly composed of phenols and flavone C-glycosides.


Asunto(s)
Dendrobium , Hipertensión/tratamiento farmacológico , Extractos Vegetales/uso terapéutico , Animales , Presión Sanguínea , Etanol , Extractos Vegetales/farmacología , Ratas
16.
Medicine (Baltimore) ; 98(51): e18471, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31861026

RESUMEN

This study aimed to compare the Hamilton anxiety rating/Hamilton depression rating (HAMA/HAMD) scale scores and blood pressure (BP) goal achievement associated with the use of valsartan-amlodipine single-pill combinations (SPCs) versus valsartan and amlodipine combination in adult hypertensive patients.A total of 476 hypertensive patients were randomly assigned into the SPC (valsartan-amlodipine) and control (valsartan and amlodipine combination) groups. All patients had an uncontrolled BP (160-179/100-109 mm Hg). BP goal was <140/90 mm Hg. Cox proportional hazards regression analysis was used to analyze the likelihood of HAMA/HAMD scales, SPCs, control group, and daily dosage number. Kaplan-Meier analysis was used to estimate the rates of BP goal achievement over time among the 2 groups.A total of 476 patients were included in the study, and 439 patients completed the follow-up and received the index drug therapy. There was a significant difference in BP between the 2 groups on days 28, 42, and 56. Patients who received SPCs had a significantly higher rate of BP goal achievement over time (P = .000). The average HAMD scores in the SPC and control groups were 5.54 and 5.49 and 6.06 and 6.21 on days 28 and 56, respectively. The average HAMA scores in the SPC and control groups were 7.41 and 7.13 and 7.90 and 8.01 on days 28 and 56, respectively. The means of HAMD and HAMA scores were 5.826 and 7.614, respectively. The higher the HAMA/HAMD scores, the lower was the BP goal achievement. The number of drugs taken by the patients was associated with the HAMA and HAMD scores. There was no significant difference between HAMA scores of patients taking 1 tablet daily (7.22 ±â€Š1.885) and those taking two-tablets daily (7.38 ±â€Š1.953) (P = .408). However, when these scores were compared to those of patients taking 4 tablets daily (8.08 ±â€Š2.285), a significant difference was observed (P = .000, P = .000).Hypertensive patients treated with valsartan-amlodipine SPCs were significantly more likely to achieve BP goal and have lesser HAMA/HAMD scores compared to patients treated with valsartan and amlodipine combination.


Asunto(s)
Combinación Amlodipino y Valsartán/uso terapéutico , Antihipertensivos/administración & dosificación , Ansiedad/prevención & control , Depresión/prevención & control , Hipertensión/tratamiento farmacológico , Combinación Amlodipino y Valsartán/farmacología , Presión Sanguínea/efectos de los fármacos , Femenino , Humanos , Hipertensión/psicología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
17.
Vasc Health Risk Manag ; 15: 551-558, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31853180

RESUMEN

Introduction: As hypertension is a chronic cardiovascular disease that contributes to a high proportion of morbidity and mortality worldwide, favorable knowledge is crucial to control it. Objective: The objective of this study was thus to assess knowledge and associated factors of blood pressure control among hypertensive patients at the chronic illness follow-up Clinic of the University of Gondar comprehensive-specialized hospital, Gondar, Ethiopia. Methods: An institution-based cross-sectional study was conducted from March to April 2018. A systematic random sampling technique was used to select participants. Bi-variable and multivariable logistic regressions were done to assess the relationship between dependent and independent variables. The adjusted odds ratio with a 95% confidence interval was used to determine the presence and strength of association between covariates and the outcome variable. Results: A total of 404 participants took part in the study with a response rate of 97.3%. The overall good knowledge about blood pressure control was 51.7% (95% CI=46.3-56.8). Females were 3.79 (AOR= 3.79, 95% CI: (1.55, 9.28)) more knowledgeable about blood pressure control than males. In the multivariable analysis, the odds of being knowledgeable were 2.80 (AOR= 2.80, 95% CI (1.44, 5.46)), 8.05 (AOR=8.05, 95% CI (2.93, 22.10)), and 7.53 (AOR=7.53, 95% CI (2.52, 22.49)) for can read and write, secondary, preparatory and above education, respectively, compared to cannot read and write. Occupation was significantly associated with the knowledge of plod pressure control. For example, merchants 7.66 (AOR=7.66, 95% CI (3.01, 19.47)), government employee 6.33 (AOR=6.33, 95% CI (1.90, 22.07)), and self-employed 4.58 (AOR=4.58, 95% CI (1.80, 11.70)) times more likely to be knowledgeable than farmers, respectively. Participants with family history of hypertension were 2.36 (AOR=2.36, 95% CI (1.42, 3.92)) times more knowledgeable than their counterparts. Conclusion: In this study, knowledge of blood pressure control was lower compared to the finding of a study done at Bishoftu hospital, Ethiopia. But it is higher than studies in other African countries. Both pharmacological and non-pharmacological awareness is vital for blood pressure control.


Asunto(s)
Antihipertensivos/uso terapéutico , Presión Sanguínea/efectos de los fármacos , Conocimientos, Actitudes y Práctica en Salud , Estilo de Vida Saludable , Hospitales Universitarios , Hipertensión/terapia , Servicio Ambulatorio en Hospital , Conducta de Reducción del Riesgo , Adulto , Anciano , Estudios Transversales , Escolaridad , Etiopía , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/fisiopatología , Hipertensión/psicología , Masculino , Persona de Mediana Edad , Ocupaciones , Factores de Riesgo , Factores Sexuales
18.
Medicine (Baltimore) ; 98(51): e18311, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31860981

RESUMEN

BACKGROUND: Studies have shown the efficacy of norepinephrine in the treatment of maternal hypotension during cesarean section by comparing it to treatment with phenylephrine. However, few studies have compared the efficacy of norepinephrine to ephedrine. METHODS: Ninety-seven women undergoing elective cesarean section were administered norepinephrine at 4 µg/minute (group N; n = 48) or ephedrine at 4 mg/minute (group E; n = 49) immediately postspinal anesthesia, with an on-off titration to maintain systolic blood pressure (SBP) at 80% to 120% of baseline. A rescue bolus of 8 µg norepinephrine was given whenever SBP reached the predefined lower limit. Our primary outcome was the incidence of tachycardia. Secondary outcomes included the incidence of bradycardia, hypertension, hypotension, severe hypotension, hypotensive episodes, number of rescue top-ups, hemodynamic performance error including median performance error (MDPE), and median absolute performance error (MDAPE). Neonatal Apgar scores and umbilical arterial (UA) blood gas data were also collected. RESULTS: Women in group N experienced fewer cases of tachycardia (4.2% vs 30.6%, P = .002, odds ratio: 0.11 [95% confidence interval, CI: 0.02-0.47]), a lower standardized heart rate (HR) (70.3 ±â€Š11 vs 75 ±â€Š11, P = .04, difference: 4.7 ±â€Š2.2 [95% CI: 0.24-9.1]), and a lower MDPE for HR (1.3 ±â€Š9.6 vs 8.4 ±â€Š13.5 bpm, P = .003, difference: 3.1 ±â€Š1.8 [95% CI: -0.6-6.7]). In addition, the lowest or the highest HR was lower in group N compared to group E (both P < .05). Meanwhile, the standardized SBP in group N was lower than that in group E (P = .04). For neonates, the UA blood gas showed a higher base excess (BE) and a lower lactate level in group N compared to E (both P < .001). Other hemodynamic variables, maternal, and neonatal outcomes were similar. CONCLUSION: Infusion of 4 µg/minute norepinephrine presented fewer cases of tachycardia, less fluctuation and a lower HR compared to baseline values, as well as a less stressed fetal status compared to ephedrine infusion at 4 mg/minute. In addition, norepinephrine infusion presented a lower standardized SBP compared to ephedrine.


Asunto(s)
Anestesia Raquidea/métodos , Cesárea/efectos adversos , Efedrina/uso terapéutico , Hipotensión/prevención & control , Norepinefrina/uso terapéutico , Adulto , Anestesia Raquidea/efectos adversos , Presión Sanguínea/efectos de los fármacos , Cesárea/métodos , Método Doble Ciego , Efedrina/efectos adversos , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Humanos , Hipotensión/etiología , Infusiones Intravenosas , Norepinefrina/administración & dosificación , Embarazo
19.
Wiad Lek ; 72(11 cz 1): 2082-2084, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31860850

RESUMEN

OBJECTIVE: Introduction: Hyperuricemia is an independent risk factor for high-normal blood pressure (BP) both in men and women. The effect of uric acid (UA) on erythrocyte morphology in normotensive patients needs further study. The aim - to evaluate the impact of serum UA level on erythrocyte morphology in normotensive patients. PATIENTS AND METHODS: Materials and methods: Patients were divided into two group according to the UA level: the first group - 38 patients with UA level < 400 mcmol/L; the second group - 42 patients with UA level ≥ 400 mcmol/L. Studies on erythrocyte morphology were conducted using cytological analysis and scanning electron microscopy. RESULTS: Results: Patients of the 1st group had poikilocytosis level of 4,6%, while type I echinocytes were 3,2%, type II echinocytes - 1,1%, stomatocytes - 1,3%. In the 2nd group, poikilocytosis exceeding 5% was observed in 12 patients with mean values of altered shapes of 12,8±1,2%. In the 2nd group, type I echinocytes was 6,2% (9,4±0,9%) more, type II echinocytes - 1,3% (2,4±0,5%) more, stomatocytes - 0,3% (1,0±0,2%) more. In the study correlation between UA and poikilocytosis was found: in the 1st group - r = +0,21 and in the second group - r = +0,42. In the 1st group, correlation between UA and BP was moderate for SBP - r = +0,34 and weak for DBP - r = +0,29; in the 2nd group: SBP - r = +0,49 and r = +0,35 for DBP. CONCLUSION: Conclusions: Direct correlation between uric acid level and poikilocytosis level becomes more intensive when uric acid level exceeds ≥ 400 mcmol/L.


Asunto(s)
Eritrocitos , Presión Sanguínea , Femenino , Humanos , Hipertensión , Hiperuricemia , Masculino , Ácido Úrico
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