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1.
Food Chem ; 462: 140953, 2025 Jan 01.
Article de Anglais | MEDLINE | ID: mdl-39216374

RÉSUMÉ

The study examined the antihypertensive effect of peptides derived from pepsin-hydrolyzed corn gluten meal, namely KQLLGY and PPYPW, and their in silico gastrointestinal tract digested fragments, KQL and PPY, respectively. KQLLGY and PPYPW showed higher angiotensin I-converting enzyme (ACE)-inhibitory activity and lower ACE inhibition constant (Ki) values when compared to KQL and PPY. Only KQL showed a mild antihypertensive effect in spontaneously hypertensive rats with -7.83 and - 5.71 mmHg systolic and diastolic blood pressure values, respectively, after 8 h oral administration. During passage through Caco-2 cells, KQL was further degraded to QL, which had reduced ACE inhibitory activity. In addition, molecular dynamics revealed that the QL-ACE complex was less stable compared to the KQL-ACE. This study reveals that structural transformation during peptide permeation plays a vital role in attenuating antihypertensive effect of the ACE inhibitor peptide.


Sujet(s)
Inhibiteurs de l'enzyme de conversion de l'angiotensine , Antihypertenseurs , Peptidyl-Dipeptidase A , Zea mays , Animaux , Humains , Mâle , Rats , Inhibiteurs de l'enzyme de conversion de l'angiotensine/composition chimique , Inhibiteurs de l'enzyme de conversion de l'angiotensine/pharmacologie , Inhibiteurs de l'enzyme de conversion de l'angiotensine/métabolisme , Antihypertenseurs/composition chimique , Antihypertenseurs/pharmacologie , Pression sanguine/effets des médicaments et des substances chimiques , Cellules Caco-2 , Digestion/effets des médicaments et des substances chimiques , Tube digestif/métabolisme , Glutens/composition chimique , Glutens/métabolisme , Hydrolyse , Hypertension artérielle/métabolisme , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Peptides/composition chimique , Peptides/pharmacologie , Peptidyl-Dipeptidase A/composition chimique , Peptidyl-Dipeptidase A/métabolisme , Hydrolysats de protéines/composition chimique , Hydrolysats de protéines/pharmacologie , Rats de lignée SHR , Zea mays/composition chimique , Zea mays/métabolisme
2.
Int J Med Mushrooms ; 26(11): 27-40, 2024.
Article de Anglais | MEDLINE | ID: mdl-39241161

RÉSUMÉ

Hypertension is a risk factor for cardiovascular diseases such as coronary artery disease, heart failure, and stroke. Lignosus rhinocerus (Cooke) Ryvarden (also known as tiger milk mushroom), has been reported to exhibit a range of pharmacological effects, such as anti-inflammatory, anti-proliferative, antioxidative, immunomodulatory and anti-asthmatic activities. Thus far, there is limited research that has explored its ability to mediate vascular effects in vivo. Therefore, this study investigated the antihypertensive and vascular protective effects of L. rhinocerus TM02® sclerotia supplementation in spontaneously hypertensive rats (SHR). Wistar Kyoto (WKY) rats served as a normotensive control group. SHR were orally administered with L. rhinocerus TM02® sclerotia (100 mg/kg and 300 mg/kg, respectively) for 8 weeks, and blood pressure was monitored every 2 weeks. Vascular function was evaluated using an organ bath (aorta) and wire myograph (renal artery) at the treatment endpoint. The levels of reactive oxygen species (ROS) and nitric oxide (NO) in the aorta and renal artery were evaluated using dihydroethidium (DHE) and difluoro fluorescein acetate (DAF-FM) fluorescence assays, respectively. Total plasma nitrate/nitrite and tumor necrosis factor alpha (TNF-α) levels were evaluated via colorimetric assays. In vivo treatment with L. rhinocerus TM02® sclerotia significantly attenuated the increase in systolic blood pressure (SBP). It also alleviated vascular dysfunction and decreased elevated ROS in the aorta and renal arteries of the treated SHRs. Moreover, L. rhinocerus TM02® sclerotia attenuated plasma TNF-α level but increased total plasma nitrate/nitrite, albeit slightly, coupled with significantly increased NO at the vascular level. Collectively, the present study demonstrated that L. rhinocerus TM02® sclerotia supplementation exerted blood pressure lowering effects, partly attributed to improvements in vascular function via reduction in vascular oxidative stress.


Sujet(s)
Pression sanguine , Hypertension artérielle , Stress oxydatif , Rats de lignée SHR , Rats de lignée WKY , Animaux , Stress oxydatif/effets des médicaments et des substances chimiques , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Rats , Mâle , Pression sanguine/effets des médicaments et des substances chimiques , Monoxyde d'azote/métabolisme , Monoxyde d'azote/sang , Antihypertenseurs/pharmacologie , Espèces réactives de l'oxygène/métabolisme , Compléments alimentaires , Aorte/effets des médicaments et des substances chimiques , Aorte/physiopathologie
4.
Sci Rep ; 14(1): 21882, 2024 09 19.
Article de Anglais | MEDLINE | ID: mdl-39300151

RÉSUMÉ

Hypertension is a significant contributor to premature mortality, and the regular monitoring of blood pressure (BP) enables the early detection of hypertension and cardiovascular disease. There is an urgent need for the development of highly accurate cuffless BP devices. We examined BP measurements based on a target spectral camera's recordings and evaluated their accuracy. Images of 215 adults' palms and faces were recorded, and BP was measured. The camera captured RGB wavelength data at 640 × 480 pixels and 150 frames per second (fps). These recordings were analyzed to extract pulse transit time (PTT) values between the face and palm, a key parameter for estimating BP. Continuous BP measurements were taken using a CNAPmonitor500 for validation. Three frequency wavelengths were measured from video images. A machine learning model was constructed to determine hypertension, defined as a systolic BP of 130 mmHg or higher or a diastolic BP of 80 mmHg or higher, using the visualized data. The discrimination between hypertension and normal BP was 95.0% accurate within 30 s and 90.3% within 5 s, based on the captured images. The results of heartbeat-by-heartbeat analyses can be used to determine hypertension based on only one second of camera footage or one heartbeat. The data extracted from a video recorded by a target spectral camera enabled accurate hypertension diagnoses, suggesting the potential for simplified BP monitoring.


Sujet(s)
Mesure de la pression artérielle , Hypertension artérielle , Humains , Hypertension artérielle/diagnostic , Hypertension artérielle/physiopathologie , Mâle , Femelle , Adulte d'âge moyen , Adulte , Études prospectives , Mesure de la pression artérielle/méthodes , Mesure de la pression artérielle/instrumentation , Pression sanguine , Sujet âgé , Analyse de l'onde de pouls/méthodes , Apprentissage machine , Rythme cardiaque , Jeune adulte
5.
Clin Exp Hypertens ; 46(1): 2402260, 2024 Dec 31.
Article de Anglais | MEDLINE | ID: mdl-39305040

RÉSUMÉ

BACKGROUND: Gestational diabetes can lead to increased blood pressure in offspring, accompanied by impaired renal sodium excretion function and vasoconstriction and diastole dysfunction. However, there are few studies on whether it is accompanied by increased sympathetic nerve activity. METHODS: Pregnant C57BL/6 mice were intraperitoneally injected with streptozotocin (35 mg/kg) or citrate buffer at day 0 of gestation. The mice of control mother offspring (CMO) and diabetic mother offspring (DMO) at 16 weeks of age were infused with vehicle (artificial cerebrospinal fluid, aCSF, 0.4 µL/h) or tempol (1 mmol/L, 0.4 µL/h) into the bilateral paraventricular nucleus (PVN) of mice for 4 weeks, respectively. RESULTS: Compared with CMO group, SBP and peripheral sympathetic nerve activity (increased heart rate, LF/HF and plasma norepinephrine and decreased SDNN and RMSSD) were increased in DMO group, which was accompanied by increased angiotensin II type-1 receptor (AT1R) expression and function in PVN. The increase in AT1R expression levels was attributed to a decrease in the methylation level of the AT1R promoter region, resulting in an increase in AT1R mRNA levels in PVN of DMO. Moreover, compared with CMO group, the levels of oxidative stress were increased and DNMT1 expression was decreased in PVN of DMO. Bilateral PVN infusion of tempol attenuated oxidative stress increased the level of DNMT1 expression and the binding of DNMT1 to the AT1R promoter region, which reduced mRNA and protein expression level of AT1R, heart rate and SBP in DMO, but not in CMO. CONCLUSIONS: The present study provides evidence for overactive sympathetic nervous systems in the pathogenesis of gestational diabetes-induced hypertension in offspring. Central antioxidant intervention in the PVN may be an important treatment strategy for fetal-programmed hypertension.


Sujet(s)
Diabète expérimental , Diabète gestationnel , Hypertension artérielle , Souris de lignée C57BL , Système nerveux sympathique , Animaux , Grossesse , Système nerveux sympathique/physiopathologie , Femelle , Souris , Diabète gestationnel/physiopathologie , Hypertension artérielle/physiopathologie , Hypertension artérielle/étiologie , Diabète expérimental/physiopathologie , Diabète expérimental/complications , N-oxydes cycliques/pharmacologie , Effets différés de l'exposition prénatale à des facteurs de risque/physiopathologie , Marqueurs de spin , Noyau paraventriculaire de l'hypothalamus/métabolisme , Noyau paraventriculaire de l'hypothalamus/physiopathologie , Pression sanguine/physiologie , Récepteur de type 1 à l'angiotensine-II/génétique , Mâle , Rythme cardiaque/physiologie , Stress oxydatif
6.
Sci Rep ; 14(1): 21434, 2024 09 13.
Article de Anglais | MEDLINE | ID: mdl-39271709

RÉSUMÉ

Systemic arterial hypertension is accompanied by autonomic impairments that, if not contained, promotes cardiac functional and morphological damages. Pyridostigmine bromide (PYR) treatment results in positive effects on autonomic control and beneficial cardiac remodeling. These findings were also observed after aerobic physical training (APT). However, little is known about PYR effects on left ventricular contractility, mainly when it is combined with APT. We aimed to investigate the effects of chronic acetylcholinesterase inhibition on cardiac autonomic tone balance, coronary bed reactivity, and left ventricular contractility in spontaneously hypertensive rats (SHR) submitted to APT. Male SHR (18 weeks) were divided into two groups (N = 16): untrained and submitted to APT for 14 weeks (18th to 32nd week). Half of each group was treated with PYR (15 mg/kg/day) for two weeks (31st to 32nd week). The experimental protocol consisted of recording hemodynamic parameters, double autonomic blockade with atropine and propranolol, and assessment of coronary bed reactivity and ventricular contractility in isolated hearts using the Langendorff technique. PYR and APT reduced blood pressure, heart rate, and sympathetic influence on the heart. The Langendorff technique showed that APT increased coronary perfusion pressure and left ventricle contractility in response to coronary flow and ß-agonist administration. However, treatment with PYR annulled the effects of APT. In conclusion, although chronic treatment with PYR reduces cardiac sympathetic tonic influence, it does not favor coronary bed reactivity and cardiac contractility gains. PYR treatment in the trained SHR group nullified the coronary vascular reactivity and cardiac contractility gains.


Sujet(s)
Anticholinestérasiques , Hypertension artérielle , Contraction myocardique , Conditionnement physique d'animal , Bromure de pyridostigmine , Rats de lignée SHR , Animaux , Anticholinestérasiques/pharmacologie , Mâle , Rats , Contraction myocardique/effets des médicaments et des substances chimiques , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Bromure de pyridostigmine/pharmacologie , Pression sanguine/effets des médicaments et des substances chimiques , Rythme cardiaque/effets des médicaments et des substances chimiques , Hémodynamique/effets des médicaments et des substances chimiques , Vaisseaux coronaires/effets des médicaments et des substances chimiques , Vaisseaux coronaires/physiopathologie , Fonction ventriculaire gauche/effets des médicaments et des substances chimiques , Acetylcholinesterase/métabolisme
7.
Hypertension ; 81(10): 2101-2112, 2024 Oct.
Article de Anglais | MEDLINE | ID: mdl-39247955

RÉSUMÉ

BACKGROUND: High heritability of salt sensitivity suggests an essential role for genetics in the relationship between sodium intake and blood pressure (BP). The role of glycosaminoglycan genes, which are crucial for salinity tolerance, remains to be elucidated. METHODS: Interactions between 54 126 variants in 130 glycosaminoglycan genes and daily sodium excretion on BP were explored in 20 420 EPIC-Norfolk (European Prospective Investigation Into Cancer in Norfolk) subjects. The UK Biobank (n=414 132) and the multiethnic HELIUS study (Healthy Life in an Urban Setting; n=2239) were used for validation. Afterward, the urinary glycosaminoglycan composition was studied in HELIUS participants (n=57) stratified by genotype and upon dietary sodium loading in a time-controlled crossover intervention study (n=12). RESULTS: rs2892799 in NDST3 (heparan sulfate N-deacetylase/N-sulfotransferase 3) showed the strongest interaction with sodium on mean arterial pressure (false discovery rate 0.03), with higher mean arterial pressure for the C allele in high sodium conditions. Also, rs9654628 in HS3ST5 (heparan sulfate-glucosamine 3-sulfotransferase 5) showed an interaction with sodium on systolic BP (false discovery rate 0.03). These interactions were multiethnically validated. Stratifying for the rs2892799 genotype showed higher urinary expression of N-sulfated heparan sulfate epitope D0S0 for the T allele. Conversely, upon dietary sodium loading, urinary D0S0 expression was higher in participants with stable BP after sodium loading, and sodium-induced effects on this epitope were opposite in individuals with and without BP response to sodium. CONCLUSIONS: The C allele of rs2892799 in NDST3 exhibits higher BP in high sodium conditions when compared with low sodium conditions, whereas no differences were detected for the T allele. Concomitantly, both alleles demonstrate distinct expressions of D0S0, which, in turn, correlates with sodium-mediated BP elevation. These findings underscore the potential significance of genetic glycosaminoglycan variation in human BP regulation.


Sujet(s)
Pression sanguine , Sulfotransferases , Humains , Mâle , Femelle , Adulte d'âge moyen , Pression sanguine/génétique , Pression sanguine/physiologie , Pression sanguine/effets des médicaments et des substances chimiques , Sulfotransferases/génétique , Sulfotransferases/métabolisme , Génotype , Héparitine sulfate/métabolisme , Héparitine sulfate/urine , Adulte , Glycosaminoglycanes/urine , Glycosaminoglycanes/métabolisme , Chlorure de sodium alimentaire/administration et posologie , Hypertension artérielle/génétique , Hypertension artérielle/physiopathologie , Variation génétique , Sujet âgé , Tolérance au sel/génétique , Polymorphisme de nucléotide simple , Études croisées , Études prospectives , Allèles
8.
Rev Med Suisse ; 20(886): 1594-1597, 2024 Sep 11.
Article de Français | MEDLINE | ID: mdl-39262184

RÉSUMÉ

For decades beta-blockers are a heterogenous group of drugs with diverse pharmacological properties, used in the treatment of high blood pressure. However, their benefit as therapy for hypertension without concomitant compelling indications is controversial. In this article we will discuss the concept of sympathetic overdrive and the theoretical rationale of the use of beta-blockers as antihypertensive drugs. The differences between beta-blockers' generations in terms of anti-hypertensive efficacy and side effects are discussed. Finally, we review the position of the last European guidelines published in 2023 about beta-blockers in the management of arterial hypertension.


Depuis des décennies, les bêtabloquants (BB) sont une gamme hétérogène de médicaments aux propriétés pharmacologiques diverses, utilisés dans le traitement de l'hypertension artérielle (HTA). Cependant, leur bénéfice, en tant que traitement de l'HTA en l'absence d'autre indication absolue à leur emploi, est controversé. Dans cet article, nous abordons le concept d'hyperactivité sympathique et la justification théorique de l'utilisation des BB comme médicaments antihypertenseurs. Les différences entre les générations de BB en termes d'efficacité antihypertensive et d'effets secondaires sont abordées. Enfin, nous revenons sur la position des dernières recommandations européennes publiées en 2023 sur les BB dans la prise en charge de l'hypertension artérielle.


Sujet(s)
Antagonistes bêta-adrénergiques , Antihypertenseurs , Hypertension artérielle , Humains , Antagonistes bêta-adrénergiques/administration et posologie , Antagonistes bêta-adrénergiques/effets indésirables , Antihypertenseurs/administration et posologie , Antihypertenseurs/effets indésirables , Pression sanguine/effets des médicaments et des substances chimiques , Pression sanguine/physiologie , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Guides de bonnes pratiques cliniques comme sujet
9.
Rev Med Suisse ; 20(886): 1602-1606, 2024 Sep 11.
Article de Français | MEDLINE | ID: mdl-39262186

RÉSUMÉ

The relationship between glaucoma and hypertension is complex. Intraocular pressure is the main modifiable risk factor for glaucoma. Literature describes hypertension as being linked to glaucomatous damage, although the mechanisms are not fully understood. Therefore, glaucoma screening is recommended for hypertensive individuals over 60 years old. The relationships between ocular, arterial pressure, and ocular perfusion pressure, and their impact on optic nerve perfusion, make coordinated management of these elements crucial. Hypertension, hypotension, extreme variability, nocturnal dipping, and overtreatment with antihypertensive drugs can increase the incidence and/or progression of glaucoma. This critical review discusses the causative, clinical, and therapeutic elements to consider in the management of these two pathologies.


La relation entre le glaucome et l'hypertension artérielle (HTA) est complexe. La pression intraoculaire est le principal facteur de risque modifiable du glaucome. Selon la littérature, l'HTA entraînerait un dommage glaucomateux, sans que les mécanismes soient entièrement compris. Le dépistage du glaucome est ainsi recommandé chez les hypertendus de plus 60 ans. La relation entre pression oculaire, artérielle et pression de perfusion oculaire, ainsi que leur impact sur la perfusion du nerf optique, rendent fondamentale la gestion coordonnée de ces deux pathologies. L'HTA, l'hypotension artérielle, la variabilité extrême ou le dipping nocturne, tout comme le surtraitement par antihypertenseurs, peuvent augmenter l'incidence et/ou la progression du glaucome.. Cette revue critique discute des éléments causatifs, cliniques et thérapeutiques à considérer dans la prise en charge de ces deux pathologies.


Sujet(s)
Glaucome , Hypertension artérielle , Humains , Adulte d'âge moyen , Antihypertenseurs/pharmacologie , Antihypertenseurs/usage thérapeutique , Pression sanguine/effets des médicaments et des substances chimiques , Pression sanguine/physiologie , Évolution de la maladie , Glaucome/épidémiologie , Glaucome/étiologie , Glaucome/physiopathologie , Glaucome/thérapie , Hypertension artérielle/complications , Hypertension artérielle/épidémiologie , Hypertension artérielle/physiopathologie , Hypertension artérielle/thérapie , Pression intraoculaire/effets des médicaments et des substances chimiques , Pression intraoculaire/physiologie , Facteurs de risque
10.
Rev Med Suisse ; 20(886): 1607-1612, 2024 Sep 11.
Article de Français | MEDLINE | ID: mdl-39262187

RÉSUMÉ

Menopause, as a consequence of ovarian follicular decline, induces estrogen deficiency and metabolic changes that increase the cardiovascular risk in women. In particular, there is an increase in blood pressure during menopause. Menopausal hormonal therapy can be prescribed to women with symptoms of menopause to improve their quality of life. This article reviews the current literature on the pathophysiological mechanisms that explain blood pressure changes at menopause and describes the impact of menopausal hormone therapy on blood pressure.


La ménopause, conséquence d'une déplétion folliculaire ovarienne, induit une carence hormonale et des modifications métaboliques augmentant le risque cardiovasculaire chez la femme. Une hausse de la tension artérielle peut notamment être observée. Le traitement hormonal de la ménopause peut être prescrit aux femmes présentant des symptômes climactériques afin d'améliorer leur qualité de vie. Cet article revoit la littérature actuelle sur les mécanismes physiopathologiques expliquant les changements tensionnels à la ménopause et décrit l'impact des traitements hormonaux de la ménopause sur la tension artérielle.


Sujet(s)
Oestrogénothérapie substitutive , Hypertension artérielle , Ménopause , Femelle , Humains , Pression sanguine/physiologie , Pression sanguine/effets des médicaments et des substances chimiques , Oestrogénothérapie substitutive/méthodes , Oestrogénothérapie substitutive/effets indésirables , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/métabolisme , Hypertension artérielle/physiopathologie , Ménopause/effets des médicaments et des substances chimiques , Ménopause/métabolisme
11.
Immunity ; 57(9): 2000-2002, 2024 Sep 10.
Article de Anglais | MEDLINE | ID: mdl-39260350

RÉSUMÉ

Our brain is not an immune-privileged island isolated from peripheries, but how non-neuronal brain cells interact with the peripheral system is not well understood. Wei et al. report that microglia in the hypothalamic paraventricular nucleus (PVN) with unique vasculature can detect ATP derived from hemodynamic disturbance. These microglia in the PVN regulate the response to hypertension via ATP-P2Y12-C/EBPß signaling.


Sujet(s)
Pression sanguine , Encéphale , Microglie , Noyau paraventriculaire de l'hypothalamus , Microglie/immunologie , Microglie/physiologie , Microglie/métabolisme , Animaux , Humains , Noyau paraventriculaire de l'hypothalamus/métabolisme , Noyau paraventriculaire de l'hypothalamus/immunologie , Noyau paraventriculaire de l'hypothalamus/physiologie , Pression sanguine/physiologie , Encéphale/immunologie , Adénosine triphosphate/métabolisme , Transduction du signal , Hypertension artérielle/immunologie , Hypertension artérielle/physiopathologie , Protéine bêta de liaison aux séquences stimulatrices de type CCAAT/métabolisme
12.
Kardiologiia ; 64(8): 24-31, 2024 Aug 31.
Article de Russe, Anglais | MEDLINE | ID: mdl-39262350

RÉSUMÉ

AIM: To compare the efficacy of adding original moxonidine and its generics to previous ineffective antihypertensive therapy in patients with poorly controlled arterial hypertension (AH). MATERIAL AND METHODS: This observational prospective non-randomized study included 120 patients with poorly controlled blood pressure on the previous antihypertensive therapy. All patients underwent clinical evaluation, including anthropometric and laboratory indexes, and 24-hour blood pressure monitoring (24-h BPM) at baseline and after 12 weeks of observation. Office systolic and diastolic blood pressure (SBP and DBP) and heart rate (HR) were recorded after 4 and 12 weeks of treatment. During the observation period, 4 equal groups were formed: group 1, Physiotens was added to the treatment; group 2, Moxonitex; group 3, Moxonidine SZ; and group 4, Moxonidine Canon. Statistical analysis was performed with the StatTech v.4.2.7 software (© OOO StatTech, Russia). RESULTS: After 4 weeks of therapy, the BP target was achieved significantly more frequently in group 1 (63% of patients) compared to groups 2 (36.7% of patients), 3 (16.7% of patients), and 4 (16.7% of patients) (p<0.05). At 12 weeks, office SBP, DBP, and HR were significantly decreased in all groups, but the decrease was significantly greater in group 1. The therapy was associated with a more pronounced decrease in all studied 24-h BPM parameters in the Physiotens group than in other groups, as well as with a significantly more frequent normalization of the 24-h BP profile, in 66.7% of patients vs. 46.7%, 33.4%, and 23.2% of patients in groups 2, 3, and 4, respectively. CONCLUSION: The treatment with original moxonidine demonstrated advantages over generic drugs in terms of achieving the BP goal, reducing office BP and HR, and improving 24-h BPM parameters.


Sujet(s)
Antihypertenseurs , Médicaments génériques , Hypertension artérielle , Imidazoles , Humains , Mâle , Femelle , Adulte d'âge moyen , Médicaments génériques/pharmacologie , Antihypertenseurs/usage thérapeutique , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/physiopathologie , Études prospectives , Imidazoles/usage thérapeutique , Pression sanguine/effets des médicaments et des substances chimiques , Pression sanguine/physiologie , Résultat thérapeutique , Surveillance ambulatoire de la pression artérielle/méthodes , Sujet âgé
14.
BMC Med ; 22(1): 353, 2024 Sep 02.
Article de Anglais | MEDLINE | ID: mdl-39218859

RÉSUMÉ

BACKGROUND: Higher cruciferous vegetable intake is associated with lower cardiovascular disease risk in observational studies. The pathways involved remain uncertain. We aimed to determine whether cruciferous vegetable intake (active) lowers 24-h brachial systolic blood pressure (SBP; primary outcome) compared to root and squash vegetables (control) in Australian adults with mildly elevated BP (SBP 120-160 mmHg inclusive). METHODS: In this randomized, controlled, crossover trial, participants completed two 2-week dietary interventions separated by a 2-week washout. Cruciferous vegetables were compared to root and squash vegetables (~ 300 g/day) consumed with lunch and dinner meals. Participants were blinded to which interventions were the active and control. Adherence was assessed using food diaries and biomarkers (S-methyl cysteine sulfoxide (SMCSO, active) and carotenoids (control)). Twenty-four-hour brachial ambulatory SBP and secondary outcomes were assessed pre- and post each intervention. Differences were tested using linear mixed effects regression. RESULTS: Eighteen participants were recruited (median (IQR) age: 68 (66-70); female: n = 16/18; mean ± SD clinic SBP: 135.9 ± 10.0 mmHg). For both interventions, 72% participants had 100% adherence (IQR: 96.4-100%). SMCSO and carotenoids were significantly different between interventions (mean difference active vs. control SMCSO: 22.93 mg/mL, 95%CI 15.62, 30.23, P < 0.0001; carotenoids: - 0.974 mg/mL, 95%CI - 1.525, - 0.423, P = 0.001). Twenty-four-hour brachial SBP was significantly reduced following the active vs. control (mean difference - 2.5 mmHg, 95%CI - 4.2, - 0.9, P = 0.002; active pre: 126.8 ± 12.6 mmHg, post: 124.4 ± 11.8 mmHg; control pre: 125.5 ± 12.1 mmHg, post: 124.8 ± 13.1 mmHg, n = 17), driven by daytime SBP (mean difference - 3.6 mmHg, 95%CI - 5.4, - 1.7, P < 0.001). Serum triglycerides were significantly lower following the active vs. control (mean difference - 0.2 mmol/L, 95%CI - 0.4, - 0.0, P = 0.047). CONCLUSIONS: Increased intake of cruciferous vegetables resulted in reduced SBP compared to root and squash vegetables. Future research is needed to determine whether targeted recommendations for increasing cruciferous vegetable intake benefits population health. TRIAL REGISTRATION: Clinical trial registry ACTRN12619001294145.  https://www.anzctr.org.au.


Sujet(s)
Pression sanguine , Études croisées , Légumes , Humains , Femelle , Mâle , Pression sanguine/physiologie , Pression sanguine/effets des médicaments et des substances chimiques , Sujet âgé , Australie , Adulte d'âge moyen , Hypertension artérielle/diétothérapie , Hypertension artérielle/physiopathologie
16.
Physiol Rep ; 12(17): e70041, 2024 Sep.
Article de Anglais | MEDLINE | ID: mdl-39266877

RÉSUMÉ

Experiments should always be based on control values. This assumption fully applies to cardiovascular parameters, such as heart rate (HR) and blood pressure (BP), which are highly sensitive to various external and internal stimuli and can already be significantly altered when an experiment begins. Therefore, it is necessary to determine which values are defined as a starting point (i.e., control and baseline) or compare them with valid reference values if the goal is to evaluate the changes after experimental intervention. A generally accepted principle is a reciprocal relationship between BP and HR, in which one parameter affects the other and vice versa. BP can be measured using two methods-noninvasively (tail-cuff) and invasively (telemetry, direct measurements of BP after introducing the sensor directly into the artery), and HR directly or by extrapolation from BP recordings. This study does not aim to evaluate the results of individual studies, but to review whether there are differences in control (baseline) BP values in normotensive and hypertensive male rats using invasive versus noninvasive methods, and to investigate whether there is a causal relationship between BP and HR in in vivo experiments with male rats.


Sujet(s)
Mesure de la pression artérielle , Pression sanguine , Rythme cardiaque , Hypertension artérielle , Animaux , Rats , Pression sanguine/physiologie , Mesure de la pression artérielle/méthodes , Rythme cardiaque/physiologie , Hypertension artérielle/physiopathologie , Mâle , Télémétrie/méthodes
17.
BMC Cardiovasc Disord ; 24(1): 497, 2024 Sep 18.
Article de Anglais | MEDLINE | ID: mdl-39289597

RÉSUMÉ

BACKGROUND: Improving hypertension control is a public health priority. However, consistent identification of uncontrolled hypertension using computable definitions in electronic health records (EHR) across health systems remains uncertain. METHODS: In this retrospective cohort study, we applied two computable definitions to the EHR data to identify patients with controlled and uncontrolled hypertension and to evaluate differences in characteristics, treatment, and clinical outcomes between these patient populations. We included adult patients (≥ 18 years) with hypertension (based on either ICD-10 codes of hypertension or two elevated blood pressure [BP] measurements) receiving ambulatory care within Yale-New Haven Health System (YNHHS; a large US health system) and OneFlorida Clinical Research Consortium (OneFlorida; a Clinical Research Network comprised of 16 health systems) between October 2015 and December 2018. We identified patients with controlled and uncontrolled hypertension based on either a single BP measurement from a randomly selected visit or all BP measurements recorded between hypertension identification and the randomly selected visit). RESULTS: Overall, 253,207 and 182,827 adults at YNHHS and OneFlorida were identified as having hypertension. Of these patients, 83.1% at YNHHS and 76.8% at OneFlorida were identified using ICD-10-CM codes, whereas 16.9% and 23.2%, respectively, were identified using elevated BP measurements (≥ 140/90 mmHg). A total of 24.1% of patients at YNHHS and 21.6% at OneFlorida had both diagnosis code for hypertension and elevated blood pressure measurements. Uncontrolled hypertension was observed among 32.5% and 43.7% of patients at YNHHS and OneFlorida, respectively. Uncontrolled hypertension was disproportionately higher among Black patients when compared with White patients (38.9% versus 31.5% in YNHHS; p < 0.001; 49.7% versus 41.2% in OneFlorida; p < 0.001). Medication prescription for hypertension management was more common in patients with uncontrolled hypertension when compared with those with controlled hypertension (overall treatment rate: 39.3% versus 37.3% in YNHHS; p = 0.04; 42.2% versus 34.8% in OneFlorida; p < 0.001). Patients with controlled and uncontrolled hypertension had similar incidence rates of deaths, CVD events, and healthcare visits at 3, 6, 12, and 24 months. The two computable definitions generated consistent results. CONCLUSIONS: While the current EHR systems are not fully optimized for disease surveillance and stratification, our findings illustrate the potential of leveraging EHR data to conduct digital population surveillance in the realm of hypertension management.


Sujet(s)
Antihypertenseurs , Pression sanguine , Dossiers médicaux électroniques , Hypertension artérielle , Humains , Hypertension artérielle/diagnostic , Hypertension artérielle/physiopathologie , Hypertension artérielle/traitement médicamenteux , Hypertension artérielle/épidémiologie , Mâle , Femelle , Études rétrospectives , Adulte d'âge moyen , Antihypertenseurs/usage thérapeutique , Sujet âgé , Pression sanguine/effets des médicaments et des substances chimiques , Adulte , Résultat thérapeutique , États-Unis/épidémiologie , Facteurs temps
18.
Blood Press ; 33(1): 2405156, 2024 Dec.
Article de Anglais | MEDLINE | ID: mdl-39311457

RÉSUMÉ

OBJECTIVE: This study investigates the relationship between hypertension, dysregulation of the autonomic nervous system, heart rate variability (HRV), and chronic inflammation. METHODS: We analysed a cohort of 50 hypertensive patients treated at the affiliated Hospital of Jianghan University. The average systolic and diastolic blood pressures (BPs) in this group were 155.26 and 95.32 mmHg, respectively. A control group of 50 healthy volunteers, undergoing routine physical examinations at the same hospital, was also analysed. RESULTS: The average systolic BP of the control group was 115.64 ± 10.27 mmHg, and the average diastolic BP was 75.33 ± 8.25 mmHg. In contrast, the experimental group exhibited an average systolic BP of 155.26 ± 20.13 mmHg and an average diastolic BP of 95.32 ± 12.16 mmHg. Both systolic and diastolic BPs were significantly higher in the hypertensive group (p < 0.05). The experimental group also demonstrated reduced HRV and skin conductance response, alongside increased BP variability (BPV), urinary epinephrine levels and prolonged pupillary light reaction time compared to controls (p < 0.05). Notably, Standard Deviation of Normal to Normal Intervals (SDNN) and Root Mean Square of Successive Differences (RMSSD) values were significantly lower in the experimental group (p < 0.05). Furthermore, levels of inflammatory markers such as CRP, TNF-α, IL-6 and IL-1ß were markedly elevated in hypertensive patients (p < 0.05). Negative correlations were observed between systolic and diastolic BP with HRV metrics, while positive correlations were found between BP and BPV as well as urinary adrenaline levels. CONCLUSIONS: The findings indicate that hypertension is closely associated with autonomic nervous system dysfunction, reduced HRV and increased chronic inflammation. A comprehensive approach to hypertension management should integrate these interrelated physiological and pathological mechanisms, with potential therapeutic interventions targeting autonomic function and inflammatory states.


Hypertension represents a global health challenge. Autonomic nervous system dysfunction and chronic inflammation assumes a pivotal role in hypertension pathogenesis. Reduced heart rate variability (HRV) is a surrogate marker of autonomic dysfunction. This study endeavours to elucidate the intricate relationship between hypertension and autonomic dysfunction, HRV and chronic inflammation, thereby advancing our comprehension of hypertension pathophysiology.


Sujet(s)
Système nerveux autonome , Rythme cardiaque , Hypertension artérielle , Inflammation , Humains , Hypertension artérielle/physiopathologie , Mâle , Femelle , Inflammation/physiopathologie , Adulte d'âge moyen , Système nerveux autonome/physiopathologie , Pression sanguine , Adulte , Maladie chronique , Maladies du système nerveux autonome/physiopathologie
19.
J Sports Sci ; 42(16): 1519-1528, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-39299934

RÉSUMÉ

To investigate i) if a recreational futsal (RF) training session elicits post-exercise hypotension (PEH), ii) the impact of a 3-month RF intervention on PEH, and iii) the association between PEH in the early phase of the intervention with resting blood pressure (BP) chronic adaptions in men with treated hypertension. BP was measured before and after a RF training session every 5-min (total of 30-min) in the early (weeks 1-2) and the final phases (weeks 11-12) of a 3-month RF intervention, comprising 3 weekly one-hour sessions. Thirty-three men (48 ± 7 years; mean arterial pressure [MAP]: 96 ± 8 mmHg; BMI: 32.2 ± 4.9 kg/m2) participated. In the intervention early phase, systolic BP ([SBP]; -15.4 mmHg; 95% CI: -10.9, -16.8), diastolic BP ([DBP]; -5.4 mmHg; 95% CI: -7.8, -3.0), and MAP (-8.8 mmHg; 95% CI: -11.2, -6.4) significantly decreased 30-min post- compared to pre-training session (n = 33). In the intervention final phase (n = 24), SBP (-8.1 mmHg; 95% CI: -12.0, -3.9) and MAP (-3.0 mmHg; 95% CI: -5.4, -0.7) significantly decreased 30-min post- compared to pre-training session, but not DBP (-0.5 mmHg; 95% CI: -3.7, 2.7). PEH in the final phase was significantly inferior compared to the early phase. PEH in the early phase of the intervention was not consistently associated with chronic BP changes.


Sujet(s)
Pression sanguine , Hypertension artérielle , Hypotension post-exercice , Humains , Mâle , Hypotension post-exercice/physiopathologie , Pression sanguine/physiologie , Adulte d'âge moyen , Adulte , Hypertension artérielle/physiopathologie , Hypertension artérielle/thérapie , Adaptation physiologique , Repos/physiologie , Ski/physiologie
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