RESUMO
The rapidly increasing burden of hypertension is responsible for premature deaths from cardiovascular disease (CVD), renal disease, and stroke, with a tremendous public health and financial burden. Hypertension detection, treatment, and control vary worldwide; it is still low, particularly in low- and middle-income countries (LMICs). High blood pressure (BP) and CVD risk have a strong, linear, and independent association. They contribute to alarming numbers of all-cause and CVD deaths. A major culprit for increased hypertension is sympathetic activity, and further complications of hypertension are heart failure, ischemic heart disease (IHD), stroke, and renal failure. Now, antihypertensive interventions have emerged as a global public health priority to reduce BP-related morbidity and mortality. Calcium channel blockers (CCB) are highly effective vasodilators. and the most common drugs used for managing hypertension and CVD. Cilnidipine, with both L- and N-type calcium channel blocking activity, is a promising 4th generation CCB. It causes vasodilation via L-type calcium channel blockade and inhibits the sympathetic nervous system (SNS) via N-type calcium channel blockade. Cilnidipine, which acts as a dual L/N-type CCB, is linked to a reduced occurrence of pedal edema compared to amlodipine, which solely blocks L-type calcium channels. The antihypertensive properties of cilnidipine are very substantial, with low BP variability and long-acting properties. It is beneficial for hypertensive patients to deal with morning hypertension and for patients with abnormal nocturnal BP due to exaggerated sympathetic nerve activation. Besides its BP-lowering effect, it also exhibits organ protection via sympathetic nerve inhibition and renin-angiotensin-aldosterone system inhibition; it controls heart rate and proteinuria. Reno-protective, neuroprotective, and cardioprotective effects of cilnidipine have been well-documented and demonstrated.
Assuntos
Bloqueadores dos Canais de Cálcio , Di-Hidropiridinas , Hipertensão , Humanos , Hipertensão/tratamento farmacológico , Bloqueadores dos Canais de Cálcio/uso terapêutico , Di-Hidropiridinas/uso terapêutico , Índia/epidemiologia , Anti-Hipertensivos/uso terapêutico , Consenso , ComorbidadeRESUMO
Adverse cardiac remodeling refers to progressive structural and functional modifications in the heart because of increased wall stress in the myocardium, loss of viable myocardium, and neurohormonal stimulation. The guideline-directed medical therapy for Heart failure (HF) includes Angiotensin receptor-neprilysin inhibitor (ARNI) (sacubitril/valsartan), ß-blockers, sodium-glucose co-transporter 2 (SGLT2) inhibitors, and mineralocorticoid receptor antagonists (MRA). ARNI is under-prescribed in India despite its attractive safety and efficacy profile. Therefore, the consensus discusses objectives and topics related to ARNI in the management of cardiac remodeling, and experts shared their views on the early timely intervention of effective dosage of ARNI to improve the diagnosis and enhance mortality and morbidity benefits in cardiac reverse remodeling (CRR).
Assuntos
Insuficiência Cardíaca , Neprilisina , Humanos , Neprilisina/farmacologia , Remodelação Ventricular , Tetrazóis/farmacologia , Resultado do Tratamento , Antagonistas de Receptores de Angiotensina/uso terapêutico , Volume Sistólico , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/diagnóstico , Anti-HipertensivosRESUMO
;Heart failure (HF) is a huge global public health task due to morbidity, mortality, disturbed quality of life, and major economic burden. It is an area of active research and newer treatment strategies are evolving. Recently angiotensin receptor-neprilysin inhibitor (ARNI), a class of drugs (the first agent in this class, Sacubitril-Valsartan), reduces cardiovascular mortality and morbidity in chronic HF patients with reduced left ventricular ejection fraction (LVEF). Positive therapeutic effects have led to a decrease in cardiovascular mortality and HF hospitalizations (HFH), with a favorable safety profile, and have been documented in several clinical studies with an unquestionable survival benefit with ARNI, Sacubitril-Valsartan. This consensus statement of the Indian group of experts in cardiology, nephrology, and diabetes provides a comprehensive review of the power and promise of ARNI in HF management and an evidence-based appraisal of the use of ARNI as an essential treatment strategy for HF patients in clinical practice. Consensus in this review favors an early utility of Sacubitril-Valsartan in patients with HF with reduced EF (HFrEF), regardless of the previous therapy being given. A lower rate of hospitalizations for HF with Sacubitril-Valsartan in HF patients with preserved EF who are phenotypically heterogeneous suggests possible benefits of ARNI in patients having 40-50% of LVEF, frequent subtle systolic dysfunction, and higher hospitalization risk.
Assuntos
Insuficiência Cardíaca , Humanos , Insuficiência Cardíaca/tratamento farmacológico , Neprilisina/farmacologia , Volume Sistólico/fisiologia , Tetrazóis/uso terapêutico , Tetrazóis/farmacologia , Qualidade de Vida , Função Ventricular Esquerda , Antagonistas de Receptores de Angiotensina/uso terapêutico , Antagonistas de Receptores de Angiotensina/farmacologia , Resultado do Tratamento , Anti-Hipertensivos/uso terapêutico , Combinação de MedicamentosRESUMO
Iron deficiency (ID) with or without anemia is frequently observed in patients with heart failure (HF). Uncorrected ID is associated with higher hospitalization and mortality in patients with acute HF (AHF) and chronic HF (CHF). Hence, in addition to chronic renal insufficiency, anemia, and diabetes, ID appears as a novel comorbidity and a treatment target of CHF. Intravenous (IV) ferric carboxymaltose (FCM) reduces the hospitalization risk due to HF worsening and improves functional capacity and quality of life (QOL) in HF patients. The current consensus document provides criteria, an expert opinion on the diagnosis of ID in HF, patient profiles for IV FCM, and correct administration and monitoring of such patients.
Assuntos
Anemia Ferropriva , Insuficiência Cardíaca , Deficiências de Ferro , Humanos , Anemia Ferropriva/etiologia , Anemia Ferropriva/complicações , Qualidade de Vida , Ferro/uso terapêutico , Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/tratamento farmacológicoRESUMO
Superantigens are products of bacteria with dual affinity for HLA-DR and the variable region of the beta chain of the T cell receptor, leading to the stimulation of large numbers of T cells. Because there is evidence for the involvement of superantigens in various disease conditions in which intravenous IgG (IVIgG) is used as therapy, the purpose of the present study was to determine if IVIgG contains antibodies inhibitory to T cell stimulation by the superantigens. ELISA and Western assays revealed high concentrations of antibodies in the pooled IgG against eight different staphylococcal toxin (Staph-toxin) superantigens. The IVIgG inhibited in vitro stimulation of human peripheral blood T cells by the Staph-toxins, but did not inhibit responses elicited by phytohemagglutinin or anti-CD3. Inhibition was mediated by Staph-toxin-specific antibodies as shown by affinity adsorption depletion studies. The antibodies functioned by inhibiting the binding and/or presentation of Staph-toxins by DR+ accessory cells. In conclusion, this report is the first to show that normal pooled IgG contains antibodies against a major group of the superantigens, the Staph-toxins, and that the antibodies can inhibit Staph-toxin-elicited T cell activation, suggesting a possible immunoregulatory role for the antibodies in vivo.
Assuntos
Anticorpos Antibacterianos/imunologia , Antígenos de Bactérias/imunologia , Enterotoxinas/imunologia , Imunoglobulina G/imunologia , Imunoglobulinas Intravenosas/imunologia , Staphylococcus aureus/imunologia , Linfócitos T/imunologia , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Ativação LinfocitáriaRESUMO
Retinal pigment epithelial (RPE) cells induced to express MHC class II (HLA-DR) by incubation with interferon gamma (IFN-gamma) were investigated for their ability to present a microbial superantigen to T lymphocytes. Superantigens bind to MHC class II antigens and appear to play a role in a number of infectious and autoimmune diseases through stimulation of large numbers of T cells. Primary cultures of human RPE cells treated with IFN-gamma for three days to induce HLA-DR expression bound staphylococcal enterotoxin E (SEE) via HLA-DR and presented SEE to T cells as measured by proliferation of purified peripheral blood T cells and IL-2 synthesis by the Jurkat T cell line. Untreated RPE cells were essentially ineffective as superantigen presenting cells. These results suggest that MHC class II expressing RPE cells could contribute to immune and inflammatory activity in the eye by presenting superantigens to T lymphocytes.
Assuntos
Células Apresentadoras de Antígenos/fisiologia , Antígenos HLA-DR/metabolismo , Complexo Principal de Histocompatibilidade/fisiologia , Epitélio Pigmentado Ocular/fisiologia , Staphylococcus aureus/metabolismo , Superantígenos/metabolismo , Apresentação de Antígeno/fisiologia , Células Cultivadas , Enterotoxinas/metabolismo , Citometria de Fluxo , Humanos , Interferon gama/farmacologia , Células Jurkat , Ativação Linfocitária/imunologia , Epitélio Pigmentado Ocular/efeitos dos fármacos , Proteínas Recombinantes , Linfócitos T/imunologia , Linfócitos T Citotóxicos/imunologia , Células Tumorais CultivadasAssuntos
Infarto do Miocárdio/tratamento farmacológico , Propranolol/uso terapêutico , Verapamil/uso terapêutico , Administração Oral , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Propranolol/administração & dosagem , Distribuição Aleatória , Fatores de Tempo , Verapamil/administração & dosagemRESUMO
Mycoplasmalike organisms (MLOs), purified from aster yellows-infected plants were osmotically lysed, and the membranes were separated from the cytoplasmic fraction through differential centrifugation. Electron microscopic examinations of sections of the purified MLOs and the isolated membranes showed pleomorphic bodies and unit membranous empty vesicles, respectively. Cell fractions were tested for NADH oxidase, NADPH oxidase, ATPase, RNase, DNase, and p-nitrophenyl phosphatase activity. NADH oxidase and ATPase were confined to the membrane fraction and NADPH oxidase to the cytoplasmic fraction of the MLOs. para-Nitrophenyl phosphatase, RNase, and DNase activities were detected in both membrane and cytoplasmic fractions, but p-nitrophenyl phosphatase and RNase appeared to be associated with membranes and DNase with the cytoplasmic fraction. Glucose-6-phosphate dehydrogenase was found in the cytoplasmic fraction of the MLO cells. Our findings on the distribution of enzymes in MLO cells and cell fractions are the first basic documentation on nonhelical, nonculturable microbes parasitic to plants.
Assuntos
Mycoplasmatales/enzimologia , NADH NADPH Oxirredutases/metabolismo , Monoéster Fosfórico Hidrolases/metabolismo , Doenças das Plantas , Plantas/microbiologia , 4-Nitrofenilfosfatase/metabolismo , Adenosina Trifosfatases/metabolismo , Membrana Celular/enzimologia , Citoplasma/enzimologia , Desoxirribonucleases/metabolismo , Complexos Multienzimáticos/metabolismo , Mycoplasmatales/isolamento & purificação , Mycoplasmatales/ultraestrutura , NADPH Oxidases , Ribonucleases/metabolismoRESUMO
A new colorimetric method is described for determining caffeic acid content in plant materials. Caffeic acid is separated by thin layer chromatography from the alcoholic extract, and color is developed using 0.5% aqueous thiosemicarbazide solution under alkaline conditions. The absorbance is read at 475 nm. Lambert-Beer's law is obeyed in the concentration range 0.37-17.5 micrograms caffeic acid/mL. The method is reproducible and has been applied to the estimation of caffeic acid in carrot roots.
Assuntos
Ácidos Cafeicos/análise , Cinamatos/análise , Verduras/análise , Cromatografia em Camada Fina , ColorimetriaRESUMO
The prevalence and concentration of IgM rheumatoid factor (RF) in children with juvenile rheumatoid arthritis (JRA) and its major disease onset groups remains uncertain. In our study enzyme linked immunoabsorbent assay (ELISA) of 68 children with active JRA showed IgM RF in the area of 67% (16/24) of those with polyarticular onset disease, 26% (7/27) of those with systemic onset disease, and 6% (1/17) of those with pauciarticular onset disease. The median IgM RF concentration was 50-fold higher in polyarticular disease compared to systemic disease. The prevalence of IgM RF in polyarticular disease was greater in those with severe disease (functional classes and 3 and 4), with 90% (9/10) seropositive. By agglutination assay, the prevalence of IgM RF in JRA was significantly less than by ELISA, with 33% of the polyarticular group positive for IgM RF, and none of the systemic group positive, Relatively low concentration IgM RF similar to that seen in systemic JRA was also found in high prevalence in the area of children with non-JRA, systemic rheumatic disease (n = 8). In summary, our study shows by ELISA that high concentrations of IgM RF are found essentially only in the sera of children with polyarticular onset JRA and especially in those with severe disease.
Assuntos
Artrite Juvenil/imunologia , Imunoglobulina M/imunologia , Fator Reumatoide/análise , Adolescente , Adulto , Testes de Aglutinação , Artrite Juvenil/classificação , Artrite Juvenil/diagnóstico , Criança , Pré-Escolar , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Imunoglobulina M/análise , Masculino , PrevalênciaRESUMO
The effect of incision drainage and primary closure on 50 cases (age ranging from 16 to 35 years) of lactational breast abscess was studied. The mean healing time was 7.12 days. Failure rate was 6%. It is concluded that primary closure technique is safe, economical and highly beneficial in comparison to conventional open drainage pack dressing method. A close and watchful postoperative care along with other factors is mandatory for the success.