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1.
Am Heart J ; 274: 119-129, 2024 08.
Artigo em Inglês | MEDLINE | ID: mdl-38740532

RESUMO

BACKGROUND: The STRONG-HF trial showed that high-intensity care (HIC) consisting of rapid up-titration of guideline-directed medical therapy (GDMT) and close follow-up reduced all-cause death or heart failure (HF) readmission at 180 days compared to usual care (UC). We hypothesized that significant differences in patient characteristics, management, and outcomes over the enrolment period may exist. METHODS: Two groups of the 1,078 patients enrolled in STRONG-HF were created according to the order of enrolment within center. The early group consisted of the first 10 patients enrolled at each center (N = 342) and the late group consisted of the following patients (N = 736). RESULTS: Late enrollees were younger, had more frequently reduced ejection fraction, slightly lower NT-proBNP and creatinine levels compared with early enrollees. The primary outcome occurred less frequently in early compared to late enrollees (15% vs. 21%, aHR 0.65, 95% CI 0.42-0.99, P = .044). No treatment-by-enrolment interaction was seen in respect to the average percentage of optimal dose of GDMT after randomization, which was consistently higher in early and late patients randomized to HIC compared to UC. The higher use of renin-angiotensin-inhibitors in the HIC arm was more pronounced in the late enrollees both after randomization (interaction-P = .013) and at 90 days (interaction-P < .001). No interaction was observed for safety events. Patients randomized late to UC displayed a trend toward more severe outcomes (26% vs. 16%, P = .10), but the efficacy of HIC showed no interaction with the enrolment group (aHR 0.77, 95% CI 0.35-1.67 in early and 0.58, 95% CI 0.40-0.83 in late enrollees, adjusted interaction-P = .51) with similar outcomes in the HIC arm in late and early enrollees (16% vs. 13%, P = .73). CONCLUSIONS: Late enrollees have different clinical characteristics and higher event rates compared to early enrollees. GDMT implementation in the HIC arm robustly achieved similar doses with consistent efficacy in early and late enrollees, mitigating the higher risk of adverse outcome in late enrollees. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03412201.


Assuntos
Insuficiência Cardíaca , Volume Sistólico , Humanos , Masculino , Feminino , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/terapia , Idoso , Pessoa de Meia-Idade , Volume Sistólico/fisiologia , Peptídeo Natriurético Encefálico/sangue , Resultado do Tratamento , Fatores de Tempo , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/administração & dosagem , Fragmentos de Peptídeos/sangue , Causas de Morte/tendências , Readmissão do Paciente/estatística & dados numéricos , Antagonistas de Receptores de Angiotensina/uso terapêutico
2.
J Card Fail ; 2024 09 29.
Artigo em Inglês | MEDLINE | ID: mdl-39353506

RESUMO

BACKGROUND: The effect of steroids on congestion in patients with acute heart failure (AHF) is not known. METHODS AND RESULTS: Patients with AHF, NT-proBNP levels > 1500 pg/mL and high-sensitivity C-reactive protein (hsCRP) levels > 20 mg/L were randomized to once-daily oral 40 mg prednisone for 7 days or usual care. In this post hoc analysis, congestion score was calculated on the basis of orthopnea, edema and rales (0 reflecting lack of congestion, and 9 maximal congestion) at each time point. Among 100 eligible patients randomized, those assigned to prednisone had a greater improvement in congestion score at day 31 (win odds for the prednisone group compared to usual care at day 31 was 1.77 (95% CI 1.17-2.84; P = 0.0066) in all patients and 2.41 (95% CI 1.37-5.05; P = 0.0016) in patients with IL-6 > 13 pg/mL at baseline. In patients with congestion scores ≥ 7 at baseline, the effects of prednisone therapy on the EQ-5D visual analog scale score were 4.30 (95% CI 0.77-7.83) points at day 7 and 5.40 (0.51-10.29) points at day 31, accompanied by lower heart rate and respiratory rate and higher oxygen saturation compared to usual care. CONCLUSIONS: In patients with AHF and inflammatory activation, 7-day steroid therapy was associated with reduction in signs of congestion up to day 31. These results need confirmation in larger studies examining potential effects of steroids on congestion, diuresis, fluid redistribution and vascular permeability as well as clinical effects in AHF.

3.
J Card Fail ; 30(4): 525-537, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37820896

RESUMO

BACKGROUND: Safety, Tolerability and Efficacy of Rapid Optimization, Helped by NT-proBNP Testing, of Heart Failure Therapies (STRONG-HF) demonstrated the safety and efficacy of rapid up-titration of guideline-directed medical therapy (GDMT) with high-intensity care (HIC) compared with usual care in patients hospitalized for acute heart failure (HF). In the HIC group, the following safety indicators were used to guide up-titration: estimated glomerular filtration rate of <30 mL/min/1.73 m2, serum potassium of >5.0 mmol/L, systolic blood pressure (SBP) of <95 mmHg, heart rate of <55 bpm, and N-terminal pro-B-type natriuretic peptide concentration of >10% higher than predischarge values. METHODS AND RESULTS: We examined the impact of protocol-specified safety indicators on achieved dose of GDMT and clinical outcomes. Three hundred thirteen of the 542 patients in the HIC arm (57.7%) met ≥1 safety indicator at any follow-up visit 1-6 weeks after discharge. As compared with those without, patients meeting ≥1 safety indicator had more severe HF symptoms, lower SBP, and higher heart rate at baseline and achieved a lower average percentage of GDMT optimal doses (mean difference vs the HIC arm patients not reaching any safety indicator, -11.0% [95% confidence interval [CI] -13.6 to -8.4%], P < .001). The primary end point of 180-day all-cause death or HF readmission occurred in 15.0% of patients with any safety indicator vs 14.2% of those without (adjusted hazard ratio 0.84, 95% CI 0.48-1.46, P = .540). None of each of the safety indicators, considered alone, was significantly associated with the primary end point, but an SBP of <95 mm Hg was associated with a trend toward increased 180-day all-cause mortality (adjusted hazard ratio 2.68, 95% CI 0.94-7.64, P = .065) and estimated glomerular filtration rate decreased to <30 mL/min/1.73 m2 with more HF readmissions (adjusted hazard ratio 3.60, 95% CI 1.22-10.60, P = .0203). The occurrence of a safety indicator was associated with a smaller 90-day improvement in the EURO-QoL 5-Dimension visual analog scale (adjusted mean difference -3.32 points, 95% CI -5.97 to -0.66, P = .015). CONCLUSIONS: Among patients with acute HF enrolled in STRONG-HF in the HIC arm, the occurrence of any safety indicator was associated with the administration of slightly lower GDMT doses and less improvement in quality of life, but with no significant increase in the primary outcome of 180-day HF readmission or death when appropriately addressed according to the study protocol.


Assuntos
Insuficiência Cardíaca , Humanos , Insuficiência Cardíaca/terapia , Insuficiência Cardíaca/tratamento farmacológico , Qualidade de Vida , Resultado do Tratamento , Volume Sistólico/fisiologia , Hospitais
4.
Eur Heart J ; 44(31): 2947-2962, 2023 08 14.
Artigo em Inglês | MEDLINE | ID: mdl-37217188

RESUMO

AIMS: STRONG-HF showed that rapid up-titration of guideline-recommended medical therapy (GRMT), in a high intensity care (HIC) strategy, was associated with better outcomes compared with usual care. The aim of this study was to assess the role of N-terminal pro-B-type natriuretic peptide (NT-proBNP) at baseline and its changes early during up-titration. METHODS AND RESULTS: A total of 1077 patients hospitalized for acute heart failure (HF) and with a >10% NT-proBNP decrease from screening (i.e. admission) to randomization (i.e. pre-discharge), were included. Patients in HIC were stratified by further NT-proBNP changes, from randomization to 1 week later, as decreased (≥30%), stable (<30% decrease to ≤10% increase), or increased (>10%). The primary endpoint was 180-day HF readmission or death. The effect of HIC vs. usual care was independent of baseline NT-proBNP. Patients in the HIC group with stable or increased NT-proBNP were older, with more severe acute HF and worse renal and liver function. Per protocol, patients with increased NT-proBNP received more diuretics and were up-titrated more slowly during the first weeks after discharge. However, by 6 months, they reached 70.4% optimal GRMT doses, compared with 80.3% for those with NT-proBNP decrease. As a result, the primary endpoint at 60 and 90 days occurred in 8.3% and 11.1% of patients with increased NT-proBNP vs. 2.2% and 4.0% in those with decreased NT-proBNP (P = 0.039 and P = 0.045, respectively). However, no difference in outcome was found at 180 days (13.5% vs. 13.2%; P = 0.93). CONCLUSION: Among patients with acute HF enrolled in STRONG-HF, HIC reduced 180-day HF readmission or death regardless of baseline NT-proBNP. GRMT up-titration early post-discharge, utilizing increased NT-proBNP as guidance to increase diuretic therapy and reduce the GRMT up-titration rate, resulted in the same 180-day outcomes regardless of early post-discharge NT-proBNP change.


Assuntos
Insuficiência Cardíaca , Peptídeo Natriurético Encefálico , Humanos , Assistência ao Convalescente , Biomarcadores , Insuficiência Cardíaca/tratamento farmacológico , Alta do Paciente , Fragmentos de Peptídeos/uso terapêutico , Prognóstico
5.
Lancet ; 400(10367): 1938-1952, 2022 12 03.
Artigo em Inglês | MEDLINE | ID: mdl-36356631

RESUMO

BACKGROUND: There is a paucity of evidence for dose and pace of up-titration of guideline-directed medical therapies after admission to hospital for acute heart failure. METHODS: In this multinational, open-label, randomised, parallel-group trial (STRONG-HF), patients aged 18-85 years admitted to hospital with acute heart failure, not treated with full doses of guideline-directed drug treatment, were recruited from 87 hospitals in 14 countries. Before discharge, eligible patients were randomly assigned (1:1), stratified by left ventricular ejection fraction (≤40% vs >40%) and country, with blocks of size 30 within strata and randomly ordered sub-blocks of 2, 4, and 6, to either usual care or high-intensity care. Usual care followed usual local practice, and high-intensity care involved the up-titration of treatments to 100% of recommended doses within 2 weeks of discharge and four scheduled outpatient visits over the 2 months after discharge that closely monitored clinical status, laboratory values, and N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations. The primary endpoint was 180-day readmission to hospital due to heart failure or all-cause death. Efficacy and safety were assessed in the intention-to-treat (ITT) population (ie, all patients validly randomly assigned to treatment). The primary endpoint was assessed in all patients enrolled at hospitals that followed up patients to day 180. Because of a protocol amendment to the primary endpoint, the results of patients enrolled on or before this amendment were down-weighted. This study is registered with ClinicalTrials.gov, NCT03412201, and is now complete. FINDINGS: Between May 10, 2018, and Sept 23, 2022, 1641 patients were screened and 1078 were successfully randomly assigned to high-intensity care (n=542) or usual care (n=536; ITT population). Mean age was 63·0 years (SD 13·6), 416 (39%) of 1078 patients were female, 662 (61%) were male, 832 (77%) were White or Caucasian, 230 (21%) were Black, 12 (1%) were other races, one (<1%) was Native American, and one (<1%) was Pacific Islander (two [<1%] had missing data on race). The study was stopped early per the data and safety monitoring board's recommendation because of greater than expected between-group differences. As of data cutoff (Oct 13, 2022), by day 90, a higher proportion of patients in the high-intensity care group had been up-titrated to full doses of prescribed drugs (renin-angiotensin blockers 278 [55%] of 505 vs 11 [2%] of 497; ß blockers 249 [49%] vs 20 [4%]; and mineralocorticoid receptor antagonists 423 [84%] vs 231 [46%]). By day 90, blood pressure, pulse, New York Heart Association class, bodyweight, and NT-proBNP concentration had decreased more in the high-intensity care group than in the usual care group. Heart failure readmission or all-cause death up to day 180 occurred in 74 (15·2% down-weighted adjusted Kaplan-Meier estimate) of 506 patients in the high-intensity care group and 109 (23·3%) of 502 patients in the usual care group (adjusted risk difference 8·1% [95% CI 2·9-13·2]; p=0·0021; risk ratio 0·66 [95% CI 0·50-0·86]). More adverse events by 90 days occurred in the high-intensity care group (223 [41%] of 542) than in the usual care group (158 [29%] of 536) but similar incidences of serious adverse events (88 [16%] vs 92 [17%]) and fatal adverse events (25 [5%] vs 32 [6%]) were reported in each group. INTERPRETATION: An intensive treatment strategy of rapid up-titration of guideline-directed medication and close follow-up after an acute heart failure admission was readily accepted by patients because it reduced symptoms, improved quality of life, and reduced the risk of 180-day all-cause death or heart failure readmission compared with usual care. FUNDING: Roche Diagnostics.


Assuntos
Insuficiência Cardíaca , Qualidade de Vida , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Volume Sistólico , Função Ventricular Esquerda , Antagonistas de Receptores de Mineralocorticoides/uso terapêutico , Resultado do Tratamento
6.
Fish Physiol Biochem ; 49(3): 425-439, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37074473

RESUMO

The splendid alfonsino Beryx splendens is a commercially important deep-sea fish in East Asian countries. Because the wild stock of this species has been declining, there is an urgent need to develop aquaculture systems. In the present study, we investigated the long-chain polyunsaturated fatty acid (LC-PUFA) requirements of B. splendens, which are known as essential dietary components in many carnivorous marine fish species. The fatty acid profiles of the muscles, liver, and stomach contents of B. splendens suggested that it acquires substantial levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) from its natural diet. The functional characterization of a fatty acid desaturase (Fads2) and three elongases (Elovl5, Elovl4a, and Elovl4b) from B. splendens confirmed their enzymatic capabilities in LC-PUFA biosynthesis. Fads2 showed Δ6 and Δ8 bifunctional desaturase activities. Elovl5 showed preferential elongase activities toward C18 and C20 PUFA substrates, whereas Elovl4a and Elovl4b showed activities toward various C18-22 substrates. Given that Fads2 showed no Δ5 desaturase activity and no other fads-like sequence was found in the B. splendens genome, EPA and arachidonic acid cannot be synthesized from C18 precursors; hence, they can be categorized as dietary essential fatty acids in B. splendens. EPA can be converted into DHA in B. splendens via the so-called Sprecher pathway. However, given that fads2 is only expressed in the brain, it is unlikely that the capacity of B. splendens to biosynthesize DHA from EPA can fulfill its physiological requirements. These results will be useful to researchers developing B. splendens aquaculture methods.


Assuntos
Proteínas de Peixes , Peixes , Animais , Elongases de Ácidos Graxos/genética , Elongases de Ácidos Graxos/metabolismo , Proteínas de Peixes/metabolismo , Peixes/metabolismo , Ácidos Graxos Dessaturases/genética , Ácidos Graxos Essenciais , Ácido Eicosapentaenoico , Ácidos Docosa-Hexaenoicos , Dieta/veterinária , Ácidos Graxos
7.
Langmuir ; 38(18): 5550-5556, 2022 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-35438508

RESUMO

Film and sheet products made from naturally derived materials that exhibit high-performance surface functions are important as regards the environment. This study aimed to control the surface structure of a cellulose nanocrystal (CNC) film modified using methyltriethoxysilane and tetraethoxysilane coprecursors with environmentally friendly solvents (water and ethanol) during a spin-coating process. The surface-modified CNC film on the glass substrate was evaluated by microstructure analyses (Fourier transform infrared (FT-IR), nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM)) and water contact angle (hydrophobicity) measurements. Through FT-IR, NMR, and XPS, it was confirmed that the silane compounds were chemically bonded to the surface of the CNC. The AFM images suggested that the local surface structure of the silylation-modified CNC film was formed along with the rod-like shape of the CNC. The water contact angle was approximately 90°, owing to the silylation of the hydroxy group and increased surface roughness of the CNC layer enabled by the sol-gel reaction.


Assuntos
Celulose , Nanopartículas , Celulose/química , Nanopartículas/química , Solventes/química , Espectroscopia de Infravermelho com Transformada de Fourier , Água/química
8.
Chemistry ; 24(53): 14137-14145, 2018 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-29939432

RESUMO

Five π-extended lactam-fused conjugated oligomers (5FO, 5FS, 4FPO, 4FPS, and R-4FPO) were synthesized by the tandem direct arylation. The intermolecular oxidative direct arylation was applied in the second step. These conjugated oligomers had fine-tuned FMO energies predictable by the theoretical calculation and excellent thermal stabilities. 4FPO and 4FPS bearing tetrafluoropyridine exhibited lower LUMO energy levels (-3.20 eV and -3.39 eV, respectively) compared with others. Based on the X-ray crystallography, 4FPO was found to have a herringbone crystal packing and a considerably large electron transfer integral value (137 meV). 4FPO-based bottom-gate, bottom-contact FET device demonstrated an electron mobility of 5.2×10-3  cm2 V-1 s-1 as a result of an edge-on alignment on the SiO2 substrate.

9.
Heart Vessels ; 33(4): 413-420, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29063302

RESUMO

Hypoalbuminemia is an independent prognostic factor in hospitalization for heart failure (HHF). Hypoalbuminemia or proteinuria is related to resistance to loop diuretics. Tolvaptan is an oral non-peptide, competitive antagonist of vasopressin receptor-2. It has been used for the treatment of volume overload in HHF patients in several Asian countries. Several studies have demonstrated marked improvement in congestion in HHF patients. However, whether tolvaptan is useful for HHF patients with hypoalbuminemia or proteinuria (both of which are related to resistance to loop diuretics) has not been clarified. We examined the diuretic response to tolvaptan in HHF patients with hypoalbuminemia or proteinuria. We defined hypoalbuminemia as a serum level of albumin < 2.6 g/dl. Fifty-one HHF patients who received additional tolvaptan upon therapies with loop diuretics were divided into the hypoalbuminemia group (n = 24) or control group (n = 27). The changes in urine output per day were not different between the two groups [610 (range 100-1032); 742 (505-1247) ml, P = 0.313]. There was no difference in diuretic responses between patients with and without proteinuria. The serum level of albumin did not correlate with changes in urine output per day after tolvaptan treatment (P = 0.276, r = 0.156). Thus, additional administration of tolvaptan elicited a good diuretic response in HHF patients with hypoalbuminemia or proteinuria. These data suggest that tolvaptan might be beneficial for such HHF patients.


Assuntos
Benzazepinas/uso terapêutico , Insuficiência Cardíaca/tratamento farmacológico , Hipoalbuminemia/complicações , Proteinúria/complicações , Micção/efeitos dos fármacos , Idoso , Antagonistas dos Receptores de Hormônios Antidiuréticos/uso terapêutico , Biomarcadores/urina , Feminino , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/urina , Humanos , Hipoalbuminemia/urina , Masculino , Proteinúria/urina , Tolvaptan
10.
Angew Chem Int Ed Engl ; 57(52): 17002-17008, 2018 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-30341834

RESUMO

To create low band-gap, fluorescent, and elastic organic crystal emitters, we focused on an extended π-conjugated system based on: a) a planar conformation,b) a rigid structure, and c) controlled intermolecular interactions. Herein, we report on two fluorescent and highly flexible organic crystals (1 and 2) which could bend under an applied stress. The bent crystals rapidly recover their straight shape upon release of the stress. Crystal 1 with a tetrafluoropyridyl terminal unit and a lower band-gap energy (orange emission, λem =573 nm, ΦF =0.50), showed no bending mechanofluorochromism and had superior performance as an optical waveguide with reddish orange emission. The waveguide performance of the crystal did not decrease under bending stress. For crystal 2 with a pentafluorophenyl terminal unit (green emission, λem =500 nm, ΦF =0.38), the original waveguide performance decreased under an applied bending stress; however, this crystal showed a unique bending mechanofluorochromism.

11.
Chemistry ; 23(40): 9495-9500, 2017 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-28557283

RESUMO

Metal-free initiating systems for living cationic polymerizations are desirable from the viewpoint of environmentally benign polymer synthesis. We describe here the development of a halogen-bonding-mediated and controlled cationic polymerization of isobutyl vinyl ether (IBVE) using 2-iodoimidazolium salts as an organocatalyst. Due to the ionic nature of the catalysts, the polymerization should be performed in CH2 Cl2 . The HCl-adduct of IBVE was the most suitable initiator, and the polymerization was carried out at -10 °C under the catalyst concentration of 10 mm to suppress alcohol elimination from the polymer chain. The addition of a small amount of nBu4 NCl (0.02 equivalent) was effective to accomplish the controlled cationic polymerization and obtain polyIBVE, having the molecular weight distribution below 1.3.

12.
J Org Chem ; 82(23): 12173-12180, 2017 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-29090911

RESUMO

Two excited-state intramolecular proton transfer (ESIPT) active benzimidazole derivatives (1 and 2) were synthesized by acid-catalyzed intramolecular cyclization. The steady-state fluorescence spectrum in THF revealed that ring-fused derivative 1 exhibits a dual emission, namely, the major emission was from the K* (keto) form (ESIPT emission) at 515 nm with a large Stokes shift of 11 100 cm-1 and the minor emission was from the E* (enol) form at below 400 nm. In contrast, the normal emission from the E* form was dominant and the fluorescence quantum yield was very low (Φ âˆ¼ 0.002) for nonfused derivative 2. The time-resolved fluorescence spectroscopy of 1 suggested that ESIPT effectively occurs due to the restricted conformational transition to the S1-TICT state, and the averaged radiative and nonradiative decay rate constants were estimated as ⟨kf⟩ = 0.15 ns-1 and ⟨knr⟩ = 0.60 ns-1, respectively. The fluorescence emission of 1 was influenced by the measurement conditions, such as solvent polarity and basicity, as well as the presence of Lewis base. The ESIPT process and solvatochromic behavior were nicely reproduced by the DFT/TDDFT calculation using the PCM model. In the single-crystal fluorescent spectra, the ESIPT emissions were exclusively observed for both fused and nonfused compounds as a result of hydrogen-bonding interactions.

13.
J Org Chem ; 80(14): 7172-83, 2015 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-26102427

RESUMO

Fused π-conjugated imidazolium chlorides having hydrogen (1-Cl), octyloxy (2-Cl), N,N-dibutylamino (3-Cl), trifluoromethyl (4-Cl), and cyano (5-Cl) groups substituted on the benzene ring at the 2-position of imidazole were prepared. Counteranion exchanges from chloride to bis(trifluoromethanesulfonyl)imidate (2-TFSI) and tetrafluoroborate (2-BF4) were performed. The optical properties of these compounds (absorption and emission wavelengths, fluorescence quantum yield, and solvatochromism) were influenced by both the substituent and anion character, which was investigated by theoretical calculations using the density functional theory (DFT) and symmetry-adapted cluster-configuration interaction (SAC-CI) methods. Fused π-conjugated benzimidazolium chlorides having N,N-dibutylamino (6-Cl) and cyano (7-Cl) groups were also prepared to observe the different solvatochromic shifts.

14.
J Org Chem ; 79(13): 6366-71, 2014 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-24906179

RESUMO

A sulfur-modified gold-supported palladium material (SAPd) has been developed bearing palladium nanoparticles on its surface. Herein, we report for the first time the use of SAPd to affect a Pd-nanoparticle-catalyzed 1,7-Pd migration reaction for the synthesis of benzotriazoles via C-H bond activation. The resulting benzotriazoles were evaluated in terms of their inhibitory activity toward indoleamine 2,3-dioxygenase.


Assuntos
Inibidores Enzimáticos/síntese química , Indolamina-Pirrol 2,3,-Dioxigenase/antagonistas & inibidores , Indolamina-Pirrol 2,3,-Dioxigenase/química , Nanopartículas/química , Paládio/química , Triazóis/síntese química , Aminação , Catálise , Inibidores Enzimáticos/química , Estrutura Molecular , Triazóis/química
16.
Chem Commun (Camb) ; 60(82): 11786-11789, 2024 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-39328125

RESUMO

We carried out Ritter-type reactions using two kinds of cationic tellurium activators. Compared with the trivalent dianisylmethyltelluronium cation, the divalent telluroviologen derivatives showed higher activity and better stability. Telluroviologen activator could cleave the C-OH bond of benzhydrol and the reaction was accelerated under LED light irradiation.

17.
J Clin Med ; 13(20)2024 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-39458224

RESUMO

Background: It has recently been shown that excessive fluctuation in blood pressure readings for an individual over time is closely associated with poor outcomes, including increased risk of cardiovascular mortality, coronary heart disease and stroke. Fluctuations may be associated with inconsistent adherence to medical recommendations. This new marker of risk has not yet been incorporated into a monitoring and intervention strategy that seeks to reduce cardiovascular risk by identifying patients through an algorithm tied to their electronic health record (EHR). Methods: We describe the methods used in an innovative "proof of concept" trial using CP&R (Cardiovascular Precision Medicine and Remote Intervention). A blood pressure variability index is calculated for clinic patients via an EHR review. Consenting patients with excessive variability are offered a remote intervention aimed at improving adherence to medical recommendations. The outcomes include the ability to identify and engage the identified patients and the effects of the intervention on blood pressure variability using a pre-post comparison design without parallel controls. Conclusions: Our innovative approach uses a recently identified marker based on reviewing and manipulating EHR data tied to a remote intervention. This design reduces patient burden and supports equitable and targeted resource allocation, utilizing an objective criterion for behavioral risk. This study is registered under ClinicalTrials.gov Identifier: NCT05814562.

18.
Eur J Heart Fail ; 26(7): 1507-1517, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38721803

RESUMO

AIMS: The effects of initiating sacubitril/valsartan in patients with stable heart failure with reduced ejection fraction (HFrEF) on response to fluid and sodium expansion are unknown. METHODS AND RESULTS: We have explored changes in natriuresis, diuresis, and congestion in response to the administration of intravenous fluid/sodium load in patients with HFrEF before as compared to after the initiation of sacubitril/valsartan. At baseline (before sacubitril/valsartan initiation) and 2 and 3 months after the initiation, patients underwent an evaluation that consisted of three phases of 3 h: the rest phase (0-3 h), the load phase (3-6 h) in which 1 L of intravenous Ringer solution was administered, and the diuretic phase (6-9 h) at the beginning of which furosemide was administered. Overall, 216 patients completed the study. In comparison to baseline values, at 2 and 3 months after sacubitril/valsartan initiation, patients' diuresis and natriuresis in response to Ringer administration significantly increased (mean difference: 38.8 [17.38] ml, p = 0.0040, and 9.6 [2.02] mmol, p < 0.0001, respectively). Symptoms and signs of congestion after the fluid/sodium challenge were significantly decreased at months 2 and 3 compared to baseline. Compared to baseline, there was also an increment of natriuresis after furosemide administration on sacubitril/valsartan (9.8 [5.13] mmol, p = 0.0167). There was a significant decrease in body weight in subsequent visits when compared to baseline values (-0.50 [-12.7, 7.4] kg at 2 months, and -0.75 [-15.9, 7.5] kg at 3 months; both p < 0.0001). CONCLUSIONS: The initiation of sacubitril/valsartan in HFrEF patients was associated with improvements in natriuresis, diuresis, and weight loss and better clinical adaptation to potentially decongestive stressors.


Assuntos
Aminobutiratos , Antagonistas de Receptores de Angiotensina , Compostos de Bifenilo , Combinação de Medicamentos , Insuficiência Cardíaca , Natriurese , Volume Sistólico , Tetrazóis , Valsartana , Humanos , Valsartana/uso terapêutico , Aminobutiratos/uso terapêutico , Aminobutiratos/administração & dosagem , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/fisiopatologia , Masculino , Feminino , Idoso , Tetrazóis/uso terapêutico , Tetrazóis/administração & dosagem , Volume Sistólico/fisiologia , Volume Sistólico/efeitos dos fármacos , Pessoa de Meia-Idade , Natriurese/efeitos dos fármacos , Antagonistas de Receptores de Angiotensina/uso terapêutico , Antagonistas de Receptores de Angiotensina/administração & dosagem , Resultado do Tratamento , Sódio , Diurese/efeitos dos fármacos , Diuréticos/uso terapêutico , Diuréticos/administração & dosagem , Estudos Prospectivos
19.
ESC Heart Fail ; 11(5): 2672-2680, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38943232

RESUMO

AIMS: Inflammation has emerged as a potential key pathophysiological mechanism in heart failure (HF) in general and acute HF (AHF) specifically, with inflammatory biomarkers shown to be highly predictive of adverse outcomes in these patients. The CORTAHF study builds on both these data and the fact that steroid burst therapy has been shown to be effective in the treatment of respiratory diseases and COVID-19. Our hypothesis is that in patients with AHF and elevated C-reactive protein (CRP) levels without symptoms or signs of infection, a 7-day course of steroid therapy will lead to reduced inflammation and short-term improvement in quality of life and a reduced risk of worsening HF (WHF) events. METHODS AND RESULTS: The study, which is currently ongoing, will include 100 patients with AHF ages 18-85, regardless of ejection fraction, screened within 12 h of presentation. Patients will be included who have NT-proBNP > 1500 pg/mL and CRP > 20 mg/L at screening. Exclusion criteria include haemodynamic instability and symptoms and signs of infection. After signed consent, eligible patients will be randomized according to a central randomization scheme stratified by centre 1:1 to either treatment once daily for 7 days with 40 mg prednisone orally or to standard care. Patients will be assessed at study day 2, day 4 or at discharge if earlier, and at days 7 and 31 at the hospital; and at day 91 through a telephone follow-up. The primary endpoint is the change in CRP level from baseline to day 7, estimated from a mixed model for repeated measures (MMRM) including all measured timepoints, in patients without a major protocol violation. Secondary endpoints include the time to the first event of WHF adverse event, readmission for HF, or death through day 91; and changes to day 7 in EQ-5D visual analogue scale score and utility index. Additional clinical and laboratory measures will be assessed. CONCLUSIONS: The results of the study will add to the knowledge of the role of inflammation in AHF and potentially inform the design of larger studies with possibly longer duration of anti-inflammatory therapies in AHF.


Assuntos
COVID-19 , Insuficiência Cardíaca , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Doença Aguda , Corticosteroides/administração & dosagem , Corticosteroides/uso terapêutico , Proteína C-Reativa/metabolismo , COVID-19/complicações , COVID-19/epidemiologia , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/fisiopatologia , Projetos Piloto , Ensaios Clínicos Controlados Aleatórios como Assunto
20.
Eur J Heart Fail ; 26(10): 2282-2292, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39211989

RESUMO

AIMS: Burst steroid therapy, effective in acute respiratory diseases, may benefit patients with acute heart failure (AHF) in whom inflammatory activation is associated with adverse outcomes. METHODS AND RESULTS: CORTAHF assessed whether burst steroid therapy reduces inflammation and results in better quality of life and clinical outcomes in AHF. Patients with AHF, N-terminal pro-B-type natriuretic peptide >1500 pg/ml, and high-sensitivity C-reactive protein (hsCRP) >20 mg/L were randomized 1:1 to oral, once daily 40 mg prednisone for 7 days or usual care, without blinding. Patients were followed for 90 days. A total of 101 patients were randomized. At day 7 the primary endpoint, hsCRP decreased in both arms - adjusted geometric mean ratios (GMRs) were 0.30 and 0.40 in the prednisone and usual care arms (ratio of GMRs 0.75, 95% confidence interval [CI] 0.56-1.00, p = 0.0498). The 90-day risk of worsening heart failure (HF), HF readmission or death as reported by the unblinded investigators was significantly lower in the prednisone group (10.4%) than in usual care (30.8%) (hazard ratio 0.31, 95% CI 0.11-0.86, p = 0.016). The EQ-5D visual analogue scale score as reported by the unblinded patients increased more in the prednisone group on day 7 (least squares mean difference 2.57, 95% CI 0.12-5.01 points, p = 0.040). All effects were statistically significant in the pre-specified subgroup with centrally-measured interleukin-6 >13 pg/ml. Adverse events, particularly hyperglycaemia, occurred more in the prednisone group with no difference in infection rate. CONCLUSION: In this small open-label study of patients with AHF, burst steroid therapy was associated with reduced inflammation as measured by hsCRP levels at day 7 (primary endpoint). Secondary endpoints showed improved quality of life at day 7 and reduced 90-day risk of death or worsening HF. Large prospective studies are needed to evaluate these findings.


Assuntos
Insuficiência Cardíaca , Prednisona , Qualidade de Vida , Humanos , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/fisiopatologia , Masculino , Feminino , Projetos Piloto , Idoso , Prednisona/administração & dosagem , Prednisona/uso terapêutico , Doença Aguda , Proteína C-Reativa/metabolismo , Peptídeo Natriurético Encefálico/sangue , Pessoa de Meia-Idade , Resultado do Tratamento , Glucocorticoides/administração & dosagem , Glucocorticoides/uso terapêutico , Fragmentos de Peptídeos/sangue
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