Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 75
Filtrar
1.
Cardiovasc Drugs Ther ; 37(4): 667-682, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-35435604

RESUMO

PURPOSE: Recent emergence of miRNAs as important regulators of processes involving lesion formation and regression has highlighted miRNAs as potent therapeutic targets for the treatment of atherosclerosis. Few studies have reported the atheroprotective role of IL-35, a novel immunosuppressive and anti-inflammatory cytokine; however, miRNA-dependent regulation underlying the anti-atherosclerotic potential of IL-35 remains elusive. METHODS: THP-1 macrophages were incubated with human recombinant IL-35 (rIL-35) either in the presence or absence of ox-LDL. qRT-PCR was conducted to validate the expression levels of previously identified miRNAs including miR-197-5p, miR-4442, miR-324-3p, miR-6879-5p, and miR-6069 that were differentially expressed in peripheral blood mononuclear cells of coronary artery disease (CAD) patients vs. controls. Additionally, bioinformatic analysis was performed to predict miRNA-associated targets and their corresponding functional significance in CAD. RESULTS: Exogenous IL-35 significantly decreased the average area of ox-LDL-stimulated macrophages, indicating the inhibitory effect of IL-35 on lipid-laden foam cell formation. Furthermore, rIL-35 treatment alleviated the ox-LDL-mediated atherogenic effects by modulating the expression levels of aforementioned CAD-associated miRNAs in the cultured macrophages. Moreover, functional enrichment analysis of these miRNA-related targets revealed their role in the molecular processes affecting different stages of atheroslerotic plaque development, such as macrophage polarization, T cell suppression, lipoprotein metabolism, foam cell formation, and iNOS-mediated inflammation. CONCLUSION: Our observations uncover the novel role of IL-35 as an epigenetic modifier as it influences the expression level of miRNAs implicated in the pathogenesis of atherosclerosis. Thus, IL-35 cytokine therapy-mediated miRNA targeting could be an effective therapeutic strategy against the development of early atheromas in asymptomatic high-risk CAD patients.


Assuntos
Aterosclerose , Doença da Artéria Coronariana , MicroRNAs , Placa Aterosclerótica , Humanos , MicroRNAs/genética , MicroRNAs/metabolismo , Doença da Artéria Coronariana/tratamento farmacológico , Doença da Artéria Coronariana/genética , Leucócitos Mononucleares/metabolismo , Leucócitos Mononucleares/patologia , Transdução de Sinais , Lipoproteínas LDL/farmacologia , Aterosclerose/tratamento farmacológico , Aterosclerose/genética , Aterosclerose/prevenção & controle , Citocinas , Interleucinas/genética , Interleucinas/farmacologia
2.
MMWR Morb Mortal Wkly Rep ; 71(50): 1569-1575, 2022 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-36520657

RESUMO

In 2019, India, along with other countries in the World Health Organization (WHO) South-East Asia Region,* adopted the goal of measles and rubella elimination by 2023,† a revision of the previous goal of measles elimination and control of rubella and congenital rubella syndrome (CRS) by 2020§ (1-3). During 2017-2021, India adopted a national strategic plan for measles and rubella elimination (4), introduced rubella-containing vaccine (RCV) into the routine immunization program, launched a nationwide measles-rubella supplementary immunization activity (SIA) catch-up campaign, transitioned from outbreak-based surveillance to case-based acute fever and rash surveillance, and more than doubled the number of laboratories in the measles-rubella network, from 13 to 27. Strategies included 1) achieving and maintaining high population immunity with at least 95% vaccination coverage by providing 2 doses of measles- and rubella-containing vaccines; 2) ensuring a sensitive and timely case-based measles, rubella and CRS surveillance system; 3) maintaining an accredited measles and rubella laboratory network; 4) ensuring adequate outbreak preparedness and rapid response to measles and rubella outbreaks; and 5) strengthening support and linkages to achieve these strategies, including planning and progress monitoring, advocacy, social mobilization and communication, identification and utilization of synergistic linkages of integrated program efforts, research, and development. This report describes India's progress toward the elimination of measles and rubella during 2005-2021, with a focus on the years 2017-2021.¶ During 2005-2021, coverage with the first dose of a measles-containing vaccine (MCV) administered through routine immunization increased 31%, from 68% to 89%. During 2011-2021, coverage with a second MCV dose (MCV2) increased by 204%, from 27% to 82%. During 2017-2021, coverage with a first dose of RCV (RCV1) increased almost 14-fold, from 6% to 89%. More than 324 million children received a measles- and rubella-containing vaccine (MRCV) during measles-rubella SIAs completed in 34 (94%) of 36 states and union territories (states) during 2017-2019. During 2017-2021, annual measles incidence decreased 62%, from 10.4 to 4.0 cases per 1 million population, and rubella incidence decreased 48%, from 2.3 to 1.2 cases per 1 million population. India has made substantial progress toward measles and rubella elimination; however, urgent and intensified efforts are required to achieve measles and rubella elimination by 2023.


Assuntos
Sarampo , Síndrome da Rubéola Congênita , Rubéola (Sarampo Alemão) , Criança , Humanos , Lactente , Erradicação de Doenças , Esquemas de Imunização , Vigilância da População , Sarampo/epidemiologia , Sarampo/prevenção & controle , Vacina contra Sarampo , Rubéola (Sarampo Alemão)/epidemiologia , Rubéola (Sarampo Alemão)/prevenção & controle , Programas de Imunização , Vacina contra Rubéola , Síndrome da Rubéola Congênita/epidemiologia , Síndrome da Rubéola Congênita/prevenção & controle
3.
Ann Rheum Dis ; 80(11): 1376-1384, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34112656

RESUMO

OBJECTIVES: There are no head-to-head trials of different dose escalation strategies of methotrexate (MTX) in RA. We compared the efficacy, safety and tolerability of 'usual' (5 mg every 4 weeks) versus 'fast' (5 mg every 2 weeks) escalation of oral MTX. METHODS: This multicentre, open-label (assessor blinded) RCT included patients 18-55 years of age having active RA with disease duration <5 years, and not on DMARDs. Patients were randomized 1:1 into usual or fast escalation groups, both groups starting MTX at 15 mg/week till a maximum of 25 mg/week. Primary outcome was EULAR good response at 16 weeks, secondary outcomes were ΔDAS28 and adverse effects (AE). Analyses were intention-to-treat. RESULTS: 178 patients with mean DAS28-CRP of 5.4(1.1) were randomized to usual (n=89) or fast escalation groups (n=89). At 16 weeks, there was no difference in good EULAR response in the usual (28.1%) or fast escalation (22.5%) groups (p=0.8). There was no difference in mean ΔDAS28-CRP at 8 weeks (-0.9, -0.8, p=0.72) or 16 weeks (-1.3, -1.3, p=0.98). Even at 24 weeks (extended follow-up), responses were similar. There were no inter-group differences in ΔHAQ, or MTX-polyglutamates 1-3 levels at 8 or 16 weeks. Gastrointestinal AE were higher in the fast escalation group over initial 8 weeks (27%, 40%, p=0.048), but not over 16 weeks. There was no difference in cytopenias, transaminitis, or drug discontinuation/dose reduction between the groups. No serious AE were seen. CONCLUSION: A faster MTX escalation strategy in RA was not more efficacious over 16-24 weeks, and did not significantly increase AE, except higher gastrointestinal AE initially. TRIAL REGISTRATION NUMBER: CTRI/2018/12/016549.


Assuntos
Antirreumáticos/administração & dosagem , Artrite Reumatoide/tratamento farmacológico , Metotrexato/administração & dosagem , Adolescente , Adulto , Artrite Reumatoide/fisiopatologia , Doença Hepática Induzida por Substâncias e Drogas/epidemiologia , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Gastroenteropatias/induzido quimicamente , Gastroenteropatias/epidemiologia , Humanos , Leucopenia/induzido quimicamente , Leucopenia/epidemiologia , Masculino , Metotrexato/análogos & derivados , Metotrexato/sangue , Pessoa de Meia-Idade , Ácido Poliglutâmico/análogos & derivados , Ácido Poliglutâmico/sangue , Trombocitopenia/induzido quimicamente , Trombocitopenia/epidemiologia , Resultado do Tratamento , Adulto Jovem
4.
J Cell Mol Med ; 24(5): 2832-2846, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31975558

RESUMO

Impaired mitochondrial autophagy (mitophagy) and NLRP3 inflammasome activation have been incriminated in the pathogenesis of T2DM. Metformin besides being an insulin sensitizer also induces autophagy; however, its effect on mitophagy and NLRP3 activation in patients with T2DM still remains elusive. Forty-five drug-naïve T2DM patients with HbA1C 7%-9% (53-75 mmol/mol) were randomly assigned to receive either metformin, voglibose, or placebo for 3 months, and were also recommended for lifestyle intervention programme (n = 15 each). Mitochondrial oxidative stress (MOS) parameters, qPCR and immunoblotting of mitophagy-related markers (PINK1, PARKIN, MFN2, NIX, LC3-II, LAMP2), p-AMPKα (T172), and NLRP3 proteins, as well as transmission electron microscopy (TEM) for assessing mitochondrial morphology were performed in the mononuclear cells of study patients. Both metformin and voglibose showed a similar efficacy towards the reduction in HbA1c and MOS indices. However, multivariate ANCOVA divulged that mRNA and protein expression of mitophagy markers, NLRP3 and p-AMPKα (T172), were significantly increased only with metformin therapy. Moreover, PINK1 expression displayed a significant positive association with HOMA-ß indices, and TEM studies further confirmed reduced distortions in mitochondrial morphology in the metformin group only. Our observations underscore that metformin upregulates mitophagy and subsequently ameliorates the altered mitochondrial morphology and function, independent of its glucose-lowering effect. Further, restoration of normal mitochondrial phenotype may improve cellular function, including ß-cells, which may prevent further worsening of hyperglycaemia in patients with T2DM.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/patologia , Metformina/uso terapêutico , Mitofagia , Regulação para Cima , Adulto , Biomarcadores/metabolismo , Diabetes Mellitus Tipo 2/genética , Quimioterapia Combinada , Feminino , Humanos , Inositol/análogos & derivados , Inositol/farmacologia , Inositol/uso terapêutico , Modelos Lineares , Masculino , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Metformina/farmacologia , Pessoa de Meia-Idade , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Mitocôndrias/ultraestrutura , Mitofagia/efeitos dos fármacos , Mitofagia/genética , Modelos Biológicos , Placebos , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Regulação para Cima/efeitos dos fármacos
5.
Lipids Health Dis ; 18(1): 195, 2019 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-31706299

RESUMO

BACKGROUND: Increased macrophage and foam cell apoptosis during early atherogenesis retards plaque progression by impeding foam cell formation, suppressing inflammation and limiting lesion cellularity. Our previous in vitro study in THP1 macrophages demonstrated that Terminalia Arjuna (TA) attenuates dual-specificity phosphatase1 (DUSP1), a key negative regulator of JNK/P38MAPK signaling cascade, the branch also implicated in the UPR (unfolded protein response)-CHOP-mediated apoptotic pathway; however this pathway has not been explored so far in the presence of TA. Therefore, we aimed to elucidate the pro-apoptotic effect of aqueous bark extract of TA (aqTAE) on macrophage and foam cells and the underlying mechanism associated with it. METHODS: THP1 cells were initially differentiated into macrophages with phorbol-12-myristate-13-acetate (PMA) (100 ng/ml) for 24 h, followed by ox-LDL (100 µg/ml) treatment for another 24 h to induce foam cell formation. Thereafter, macrophages and ox-LDL- treated cells were incubated with aqTAE (100 µg/ml) for the next 24 h. Further, Oil Red O (ORO) staining, CD36 expression profiling, apoptotic assay and transcriptional and translational expression of ER-stress markers i.e., X-box binding protein 1 (XBP1) and C/EBP homologous protein (CHOP) were performed for elucidating the potential mechanism underlying TA-induced macrophage and foam cell apoptosis. RESULTS: We demonstrated that ox-LDL treatment significantly increased lipid accumulation and upregulated CD36 expression, indicating foam cell formation; while the addition of aqTAE resulted in a significant decline in ORO positive cells, and suppression of CD36 expression in ox-LDL-stimulated macrophages, suggestive of reduced formation of lipid-laden foam cells. Further, aqTAE treatment alone and in combination with oxidized low-density lipoprotein (ox-LDL) stimulus, significantly attenuated CD36 expression; increased apoptosis; and augmented the expression of UPR regulatory proteins including XBP1 and CHOP, and similar observations were noted when cells were treated with ox-LDL alone. These findings indicate that TA promotes macrophage and foam cell apoptosis via enhancing UPR-mediated activation of JNK/p38MAPK-CHOP pathway in a DUSP1-dependent manner, implying a possible interplay between ox-LDL-induced ER stress- and TA-mediated MAPK signaling. CONCLUSION: Our data shows that aqTAE inhibits foam cell formation, as well as promotes macrophage and foam cell apoptosis by augmenting UPR- JNK/p38MAPK-CHOP signaling cascade via inhibiting DUSP1. These findings provide novel mechanistic insight into the anti-atherogenic potential of TA, which may prove beneficial against early-stage atherosclerotic lesions.


Assuntos
Apoptose/efeitos dos fármacos , Células Espumosas/efeitos dos fármacos , Lipoproteínas LDL/farmacologia , Macrófagos/efeitos dos fármacos , Casca de Planta/química , Extratos Vegetais/farmacologia , Transdução de Sinais/efeitos dos fármacos , Terminalia/química , Fator de Transcrição CHOP/metabolismo , Resposta a Proteínas não Dobradas/efeitos dos fármacos , Cromatografia Líquida de Alta Pressão , Citometria de Fluxo , Humanos , Macrófagos/metabolismo , Reação em Cadeia da Polimerase em Tempo Real
6.
Indian J Med Res ; 150(1): 62-66, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31571630

RESUMO

Background & objectives: Non-invasive prenatal diagnosis (NIPD) of rhesus D (RHD) genotype using cell-free foetal DNA is extensively used in many developed countries. Studies on NIPD from India are scarce. The aim of the present study was to evaluate the performance of non-invasive foetal RHD genotyping by targeting exon 10 of the RHD gene using cell-free DNA. Methods: DNA was extracted from the maternal plasma of alloimmunized and non-alloimmunized women between 7 and 34 wk of gestation. RHD sequence was determined by quantitative real time polymerase chain reaction (PCR). Results were compared with RhD phenotype obtained from cord blood samples of neonates. Results: A total of 135 samples from RhD-negative pregnant women were collected. The foetal RHD status was conclusive in all 135 (100%) cases. The highest number of cases reported for RHD genotyping were from Punjab (38.5%) followed by Haryana (24.4%), Himachal Pradesh (17.0%) and Chandigarh Union Territory (13.3%). The non-invasive test correctly predicted the foetal RhD phenotype in 133 of 135 cases, making the accuracy of the test as 98.51 per cent [95% confidence interval (CI): 97.90-99.50%]. The overall sensitivity and specificity of the test were 99.18 per cent (95% CI: 95.52-99.98%) and 92.31 per cent (95% CI: 63.97-99.81%), respectively, with negative and positive predictive values of 99.80 per cent (95% CI: 94.85-99.87%) and 96.31 per cent (95% CI: 62.87-98.84%), respectively. Interpretation & conclusions: Non-invasive foetal RHD determination by single-exon quantitative PCR exhibited high accuracy and could be used in routine clinical practice after confirmatory studies are done.


Assuntos
DNA/genética , Testes Genéticos , Diagnóstico Pré-Natal , Sistema do Grupo Sanguíneo Rh-Hr/genética , Adulto , Animais , Éxons , Feminino , Feto/imunologia , Genótipo , Humanos , Índia , Recém-Nascido , Macaca mulatta/imunologia , Fenótipo , Gravidez , Cuidado Pré-Natal , Reação em Cadeia da Polimerase em Tempo Real , Sistema do Grupo Sanguíneo Rh-Hr/imunologia , Sistema do Grupo Sanguíneo Rh-Hr/isolamento & purificação
7.
Inflammopharmacology ; 26(2): 583-598, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28547701

RESUMO

AIM OF THE STUDY: Terminalia arjuna is a medicinal plant well known as a cardiotonic in Ayurvedic system of medicine. We hypothesized that aqueous stem bark extract of T. arjuna (TAE) may inhibit IL-18-induced atherosclerosis via NF-κB/PPAR-γ-mediated pathway in Apo E-/- mice. MATERIALS AND METHODS: 12-week-old, male Apo E-/- mice divided into four groups (n = 6/group) fed with normal chow-diet were employed: GP I: phosphate buffer saline (PBS) (2 month); GP II: rIL-18 (1 month) followed by PBS (1 month); GP III: rIL-18 (1 month) followed by TAE (1 month); GP IV: rIL-18 (1 month) followed by atorvastatin (1 month). RESULTS: IL-18 treatment induced a significant increase (p < 0.001) in pro-inflammatory marker (IL-18) (170 ± 9.16 vs. 1178.66 ± 8.08, pg/ml), and downregulated cholesterol efflux gene (PPAR-γ) by ~0.6-fold vs. 1.00 in IL-18-treated mice as compared to the control animals, respectively. TAE treatment to both groups caused a significant reduction in IL-18 to 281.66 ± 9.60 vs. 1178.66 ± 8.08 (pg/ml), upregulated cholesterol efflux gene by ~1.5- vs. 0.6-fold in TAE-treated group, decreased atherogenic lipids, and percentage atherosclerotic lesion area, demonstrating comparable effects with atorvastatin. CONCLUSION: Our data demonstrate that TAE protects against IL-18-induced atherosclerosis via NF-κB/PPAR-γ-mediated pathway.


Assuntos
Apolipoproteínas E/metabolismo , Aterosclerose/tratamento farmacológico , Interleucina-18/metabolismo , NF-kappa B/metabolismo , PPAR gama/metabolismo , Extratos Vegetais/farmacologia , Terminalia/química , Animais , Antioxidantes/metabolismo , Aterosclerose/metabolismo , Modelos Animais de Doenças , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Plantas Medicinais/química
8.
Mol Cell Biochem ; 428(1-2): 119-128, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28176248

RESUMO

Focal recruitment of monocytes and lymphocytes is one of the earliest detectable cellular responses in atherosclerotic lesion formation. Endothelium may regulate leukocyte recruitment by expressing specific adhesion molecules. Interleukin-18 is a proinflammatory cytokine that plays an important role in vascular pathologies. The present study highlights the modulation of adhesion molecules and PPAR-γ by IL-18 and proposes a novel feedback mechanism by which PPAR-γ may regulate IL-18 expression. Three groups of normal chow diet-fed, male Apo E-/- mice, aged 12 weeks (n = 6/group) were employed: Gp I, phosphate-buffered saline (PBS) (2 mo): Gp II, recombinant IL-18 (rIL-18) (1 mo) followed by PBS (1 mo); Gp III, rIL-18 (1 mo) followed by pyrrolidine dithiocarbamate (PDTC) (1 mo). Significantly augmented mRNA expression of ICAM-1 (~5.7-fold), VCAM-1 (~3.6-fold), and NF-κB (~7-fold) was observed in Gp II mice as compared to Gp I, whereas PPAR-γ expression was not altered. PDTC treatment caused a significant downregulation of ICAM-1 (~4.2-fold), VCAM-1(~2-fold), and NF-κB (~4.5-fold) and upregulation of PPAR-γ expression (~5-fold) in Gp III mice. A similar trend was observed in protein expression. In vivo imaging results demonstrated a marked increase in probe (CF750 dye conjugated to VCAM-1 antibody) fluorescence intensity for VCAM-1 expression in Gp II mice, whereas it was moderately decreased in Gp III. PPAR-γ was found to significantly downregulate both IL-18 levels and IL-18-induced adhesion molecules. The underlying mechanism was found to be via inhibition of NF-κB activity by PDTC, thereby leading to decreased adherence of monocytes to the activated endothelial cells and a step to halt the progression and development of atherosclerotic lesions.


Assuntos
Apolipoproteínas E/genética , Aterosclerose/genética , Retroalimentação Fisiológica/efeitos dos fármacos , Interleucina-18/administração & dosagem , NF-kappa B/genética , PPAR gama/genética , Animais , Adesão Celular/efeitos dos fármacos , Moléculas de Adesão Celular/genética , Moléculas de Adesão Celular/farmacologia , Modelos Animais de Doenças , Regulação da Expressão Gênica , Humanos , Interleucina-18/farmacologia , Masculino , Camundongos , Camundongos Knockout , NF-kappa B/metabolismo , PPAR gama/metabolismo , Transdução de Sinais
9.
Mol Cell Biochem ; 432(1-2): 67-78, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28337704

RESUMO

Premenopausal women are known to have less heart disease than their menopausal counterparts and men. However, there is a rising prevalence of coronary artery disease (CAD) in premenopausal females, which necessitates determination of risk factors that negate the effects of hormonal protection. There are few studies describing the prevalence of traditional and emerging risk factors in premenopausal women with CAD. Thus, our objective was to explore the prevalence of traditional and emerging risk factors and features of coronary lesions in premenopausal women with CAD in an Indian population. Forty premenopausal female patients with angiographically proven CAD and undergoing treatment with conventional therapies and 40 age-matched premenopausal females without any evidence of CAD were enrolled. Premenopausal females with CAD most commonly had the single-vessel CAD and the left anterior descending artery was most commonly involved. The prevalence of hypertension, diabetes, obesity, metabolic syndrome, family history of CAD and 10-year risk score was higher in premenopausal females with CAD than controls. Even after treatment with conventional therapies, premenopausal women with CAD had dyslipidemia and significantly elevated levels of emerging risk factors such as ApoB, ApoB/ApoA1 ratio, hsCRP, lipoprotein (a), uric acid, T4, fibrinogen, and total leukocyte count as compared to controls (p < 0.05). Further, they had significantly lower levels of HDL-C, and Apolipoprotein A1 and T3 which are protective markers for vascular risk. Multivariate regression analysis demonstrated that low levels of Apo A1 and high levels of fibrinogen, hsCRP and TG drive the vascular risk, and therefore these factors should be considered as candidates for better diagnosis, early detection, and intervention of CAD in premenopausal women.


Assuntos
Angiografia Coronária , Doença da Artéria Coronariana , Vasos Coronários , Pré-Menopausa/sangue , Adulto , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/epidemiologia , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/metabolismo , Feminino , Humanos , Índia/epidemiologia , Pessoa de Meia-Idade , Projetos Piloto , Prevalência , Fatores de Risco
10.
Ther Drug Monit ; 39(2): 157-163, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28107255

RESUMO

BACKGROUND: It is unclear whether erythrocyte methotrexate polyglutamate levels (MTX-glun) are associated with response or adverse effects to methotrexate in rheumatoid arthritis. This preliminary study evaluated their utility in Asian Indian patients over 24 weeks. METHODS: Rheumatoid arthritis patients were started on oral methotrexate at a dose of 15 mg/wk, which was escalated to 25 mg by 12 weeks and continued till 24 weeks. Erythrocyte (RBC) MTX-glu1 to MTX-glu5 levels (nmol/L RBC) were determined at 4, 8, 16, and 24 weeks by using reverse-phase high-performance liquid chromatography. Area under the concentration curve (AUC) of MTX-glu1-5, MTX-glu3-5, and MTX-glu3 levels was compared between groups with regards to response and adverse effects. RESULTS: This study included 117 patients with mean (SD) age of 42.7 (±11.9) years and disease duration of 2.0 (1.7) years. Mean (SD) RBC MTX-glu1-5 levels at 4, 8, 16, and 24 weeks were 93 (±29), 129 (±46), 143 (±49), and 159 (±65) nmol/L RBC; the highest individual polyglutamate was MTX-glu3 (40%). There was significant correlation between MTX-glu1-5 (r = 0.38, P < 0.001) and MTX-glu3 (r = 0.49, P < 0.001) with methotrexate dose. There was no significant difference of AUC MTX-glun between responders and nonresponders. However, AUC MTX-glu3 was significantly (P = 0.03) higher in patients with adverse effects. On logistic regression, AUC of MTX-glu3 [odds ratio = 1.004 (95% confidence interval 1.002-1.007)] and methotrexate dose at 24 weeks were independent predictors of adverse effects. CONCLUSIONS: In this preliminary study, higher levels of RBC MTX-glu3 were found to be the independent predictors for adverse effects in rheumatoid arthritis patients.


Assuntos
Antirreumáticos/administração & dosagem , Antirreumáticos/efeitos adversos , Artrite Reumatoide/tratamento farmacológico , Metotrexato/análogos & derivados , Ácido Poliglutâmico/análogos & derivados , Administração Oral , Adulto , Antirreumáticos/sangue , Área Sob a Curva , Artrite Reumatoide/sangue , Cromatografia Líquida de Alta Pressão/métodos , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/sangue , Eritrócitos/química , Feminino , Humanos , Masculino , Metotrexato/administração & dosagem , Metotrexato/efeitos adversos , Metotrexato/sangue , Ácido Poliglutâmico/administração & dosagem , Ácido Poliglutâmico/efeitos adversos , Ácido Poliglutâmico/sangue
11.
J Trop Pediatr ; 62(5): 368-76, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27105646

RESUMO

BACKGROUND: Childhood obesity is a public health problem worldwide. There is convincing evidence that school-based interventions are effective in managing childhood obesity. However, the nature of interventions, its impact on prevention of obesity and how they work remain poorly understood. The primary objective of this study was to examine the impact of a multicomponent lifestyle intervention on weight and body mass index (BMI) of children in a school-based setting. METHODS: It is a cluster randomized trial where four schools were randomly selected and allocated to intervention and control arm equally. Of the 462 schoolchildren selected, 201 were assigned to the intervention group and 261 belonged to the control group. Children in the intervention arm received a multicomponent lifestyle package. Primary outcome measures included anthropometric measurements (weight, BMI, skinfold thickness and waist and hip circumference), whereas secondary outcomes were biochemical parameters, physical activity and dietary intake. RESULTS: Compared with controls and adjusting for age, sex and clustering within classes, children in the intervention group showed decrease in the weight by - 0.08 (-0.15 to - 0.00, p = 0.048) z-score units, waist circumference by - 0.14 (-0.25 to - 0.03, p = 0.01) and triceps thickness by - 0.35 (-0.47 to - 0.22, p < 0.001) z-score units; however, BMI showed no significant decrease. There was significant reduction in intake of energy, protein and fat but no to minimal reduction in biochemical parameters. CONCLUSION: A school-based lifestyle intervention package favorably affected anthropometric (weight, waist circumference and triceps and biceps thickness) and behavioral parameters. At least 20 weeks of healthy lifestyle promoting intervention package should be included in school curriculum in each academic year for sustainable impact and behavioral change to reduce the burden of lifestyle disorders.


Assuntos
Exercício Físico , Promoção da Saúde/métodos , Obesidade/prevenção & controle , Obesidade Infantil/terapia , Índice de Massa Corporal , Análise por Conglomerados , Ingestão de Energia , Terapia por Exercício/métodos , Feminino , Humanos , Índia/epidemiologia , Estilo de Vida , Masculino , Obesidade Infantil/epidemiologia , Serviços de Saúde Escolar , Dobras Cutâneas , Resultado do Tratamento
12.
Vaccines (Basel) ; 12(5)2024 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-38793714

RESUMO

Tribal populations in India have health care challenges marked by limited access due to geographical distance, historical isolation, cultural differences, and low social stratification, and that result in weaker health indicators compared to the general population. During the pandemic, Tribal districts consistently reported lower COVID-19 vaccination coverage than non-Tribal districts. We assessed the MOMENTUM Routine Immunization Transformation and Equity (the project) strategy, which aimed to increase access to and uptake of COVID-19 vaccines among Tribal populations in Chhattisgarh and Jharkhand using the reach, effectiveness, adoption, implementation, and maintenance framework. We designed a qualitative explanatory case study and conducted 90 focus group discussions and in-depth interviews with Tribal populations, community-based nongovernmental organizations that worked with district health authorities to implement the interventions, and other stakeholders such as government and community groups. The active involvement of community leaders, targeted counseling, community gatherings, and door-to-door visits appeared to increase vaccine awareness and assuage concerns about its safety and efficacy. Key adaptations such as conducting evening vaccine awareness activities, holding vaccine sessions at flexible times and sites, and modifying messaging for booster doses appeared to encourage vaccine uptake among Tribal populations. While we used project resources to mitigate financial and supply constraints where they arose, sustaining long-term uptake of project interventions appears dependent on continued funding and ongoing political support.

13.
Pediatr Dermatol ; 30(6): 695-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24111610

RESUMO

Henoch-Schönlein purpura (HSP) is an acute systemic vasculitis with unknown etiology, although several studies have found HSP to be related to cytokines such as tumor necrosis factor α, interleukin (IL)-1, and adhesion molecules. In the present study we determined the levels of cytokines such as IL-18 and endothelin-1 (ET-1) in children with HSP. Subjects were divided into three groups (group 1, 20 subjects with HSP; group 2, 10 subjects belonging to group 1 during their follow-up 4 to 6 months later; and group 3, 16 controls who were healthy siblings of the subjects). IL-18 and ET-1 levels were determined using enzyme immunoassay and expressed as mean ± standard deviation. We observed higher IL-18 levels in children with HSP (767.6 ± 145.1 pg/mL) than in controls (614.6 ± 66.54 pg/mL, p > 0.05), but IL-18 levels were found to be significantly lower in subjects with HSP in remission (502.7 ± 60.81 pg/mL) than in those who were in an active phase (1,050 ± 244.5 pg/mL, p < 0.05, n = 10). ET-1 levels were found to be significantly higher in subjects with HSP (1.93 ± 0.19 pg/mL) than in controls (1.10 ± 0.13 pg/mL, p < 0.05), although no significant difference was observed in ET-1 levels between subjects in group 1 (1.88 ± 0.30 pg/mL) and group 2 (1.91 ± 0.120, p > 0.05, n = 10). A positive correlation was observed between IL-18 and ET-1 levels in subjects with HSP (correlation coefficient [r] = 0.5254, p < 0.01). These results suggest that levels of IL-18 and ET-1 are worth monitoring during the clinical course of the disease, but caution must be exercised in extrapolating data based on small study samples.


Assuntos
Endotelina-1/metabolismo , Vasculite por IgA/imunologia , Vasculite por IgA/metabolismo , Interleucina-18/metabolismo , Criança , Pré-Escolar , Feminino , Humanos , Vasculite por IgA/epidemiologia , Índia/epidemiologia , Masculino , Prevalência
14.
Indian J Community Med ; 48(5): 644-647, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37970169

RESUMO

Public health programmes are interlinked and intertwined with communication, advocacy and social mobilisation for their success. The unprecedented situation created by COVID-19 brought a medical emergency all over the world, the like of which was probably not seen after the Spanish Flu outbreak, a century ago. First there seemed no solution in sight when tens of thousands of people lost their lives to the coronavirus in various countries, but when the vaccine arrived, there were, in general, doubts about its efficacy and safety. Indian scenario was not any different. When the government launched the vaccine in a campaign mode in January 2021, it was also battling with misperceptions and vaccine hesitancy. Prime Minister Narendra Modi took it upon himself to address the issue through his various addresses to the nation and his signature programme Mann ki Baat (MKB) on the radio. This review paper examines the empirical research on MKB coverage of the COVID-19 pandemic, the media multiplier impact of the MKB, people's voices through their engagement with various social media platforms, and what is the impact on vaccine uptake.

15.
Indian J Community Med ; 48(6): 823-827, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38249699

RESUMO

Child immunization is crucial for reducing the morbidity and mortality associated with vaccine-preventable diseases (VPDs). The program grew over the years, however, progress towards full immunization coverage (FIC) remained slow, with only 44% of children fully immunized in 1992-1993, and 62% in 2015-2016, as reported in the National Family Health Survey. To address this challenge, Government of India launched Routine Immunization intensification drive- Mission Indradhanush (MI) in 2014, with the aim of achieving 90% FIC. The success of MI led to the launch of Intensified Mission Indradhanush (IMI) in 2017, with more intensive planning, monitoring, review, and inter-sectoral partnerships.

16.
Cureus ; 15(2): e35404, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36851944

RESUMO

Background While immunization programs across the world have made considerable progress, children and communities continue to be beyond the reach of healthcare services. Globally, they are now referred to as zero-dose (ZD) children (those who have not received a single dose of diphtheria, pertussis, and tetanus-containing vaccine). Pre-COVID-19 pandemic analyses suggest that nearly 50% of vaccine-preventable deaths occur among ZD children. Two-thirds of these children live in extremely poor households suffering from multiple deprivations including lack of access to reproductive health services, water, and sanitation. Hence, ZD children have now been prioritized as a key cohort for identification and integration with the health systems as we build back from the pandemic. Methodology Extracting data from the last two National Family Health Survey (NFHS) rounds (NFHS 4, 2015-2016 and NFHS 5, 2019-2021), this study aims to ascertain the status of ZD children aged 12-23 months in India, the challenges, and the necessary action agenda going forward. Data were analyzed for equity determinants such as gender, place of residence, religion, birth order, caste, and mother's schooling. Key determinants included the change in ZD prevalence at the national, state, and district levels; variations across equity parameters and states with maximum improvements; and disparity across these indicators. A correlation analysis was also conducted to understand the nature of the association between ZD prevalence and critical maternal and child health indicators. Results The overall ZD prevalence between the two rounds was reduced by 4.1% (10.5-6.4%). A total of 26 states in the country reported a ZD prevalence of <10% in NFHS 5 compared to 18 in NFHS 4. In total, 324 districts reported a ZD prevalence of <5%, and 145 districts reported a prevalence of >10%. The equity parameters reflected a slow-footed reduction among ZD for girl children, across urban geographies, firstborn children, mothers with 12 or more years of schooling, and children in families with the highest wealth quintiles. A negative correlation accentuated between the two NFHS rounds was established between first-trimester registration, four or more antenatal visits, institutional deliveries, and ZD prevalence. Conclusions The findings point toward sustained improvement across key equity parameters, however, challenges do exist. Moreover, the impact of the pandemic on immunization programs across the globe and in India is bound to halt and reverse the progress and potentiate further inequities. It is thus imperative that continued and augmented efforts are continued to identify, integrate, and immunize ZD children, families, and communities.

17.
Vaccines (Basel) ; 11(4)2023 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-37112780

RESUMO

During the coronavirus disease 2019 (COVID-19) pandemic, numerous factors determined the performance of COVID-19 vaccination coverage. The purpose of this study is to examine the influence of factors such as government stewardship, planning and implementation, and community participation on COVID-19 vaccination coverage. This study applied partial least square structured equation modeling (PLS-SEM) by analyzing 187 responses from the stakeholders involved in vaccination programs in four select states of India. This study empirically validates a framework for improving vaccination coverage by confirming the significant impact of planning and implementation on vaccination coverage followed by government stewardship and community participation. Additionally, this study highlights the individual impact of each factor on vaccination coverage. Based on the findings, strategic recommendations were proposed that can be utilized for formulating policy-level actions to facilitate the vaccination program.

18.
J Proteomics ; 287: 104974, 2023 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-37467891

RESUMO

To identify and evaluate differentially expressed plasma proteins in biliary atresia (BA), we performed plasma proteome profiling using liquid chromatography with tandem mass spectrometry (LC-MS/MS) in 20 patients with BA and 10 control children. Serological assays validated the most significant and highly upregulated proteins in a cohort of 45 patients and 15 controls. Bioinformatics tools were used for functional classification and protein-protein interactions of differentially expressed proteins (DEPs). Of 405 proteins detected in patients and 360 in controls, 242 proteins, each with ≥2 unique peptides (total of 3230 peptides), were common in both groups. Compared to controls, 90 proteins in patients were differentially expressed and were dysregulated. Twenty-five were significantly upregulated with polymeric immunoglobulin receptor (PIgR), galectin-3-binding protein (Gal-3BP), complement C2, the most prominent, and 15 had low expression. The bioinformatic analysis revealed functional interaction between DEPs and their role in an inflammatory immune response. Enzyme immunoassay for PIgR and Gal-3BP in patients' plasma showed their levels raised significantly (p = 0.0021 and p = 0.0369, respectively). The PIgR and Gal-3BP are novel proteins upregulated in BA and may be tested further for their utility as potential circulating disease biomarker(s). SIGNIFICANCE: The study shows that plasma PIgR and GAL-3BP levels are significantly raised in infants with BA within the first 3 months of life. If tested in a larger cohort, these proteins may be found to have their diagnostic potential and utility as disease biomarkers. The study also provides valuable information on the involvement of several DEPs in innate immune response, chronic inflammation, and fibrosis. This strengthens the hypothesis that the immune-mediated inflammatory processes are responsible for the progressive nature of BA.


Assuntos
Atresia Biliar , Receptores de Imunoglobulina Polimérica , Criança , Humanos , Lactente , Cromatografia Líquida , Galectina 3/metabolismo , Proteômica , Espectrometria de Massas em Tandem
19.
Hum Vaccin Immunother ; 18(1): 2009289, 2022 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-34905441

RESUMO

The electronic vaccine intelligence network (eVIN) was introduced by India's Ministry of Health and Family Welfare in 12 states and was implemented by the United Nations Development Programme through the Gavi health system strengthening support during 2014-17 to replace the traditional paper-based cold-chain management system with an electronic vaccine logistics management system. An economic assessment was conducted as part of the overall assessment of eVIN. The objective of the economic assessment was to conduct a return on investment analysis of eVIN implementation. Return on investment was defined as the ratio of total benefits (savings) from eVIN to total investment in eVIN. All costs were calculated in 2020 prices and reported in Indian rupees (1 US dollar = INR 74.132). A one-rupee investment in eVIN led to a return of INR 0.52 for traditional vaccines. The highest cost savings from eVIN was from better vaccine stock management. When same percentage of savings from the new vaccines were incorporated into the analysis, one-rupee investment in eVIN led to a return of INR 1.41. In the future, when only recurrent costs will exist, the return from eVIN will be even higher: a one-rupee investment in eVIN will yield a return of INR 2.93. The assessment of eVIN showed promising results in streamlining the vaccine flow network and ensuring equity in vaccine stock management along with good return on investment; hence, there was a rapid expansion of eVIN in all 731 districts across 36 states and union territories in the country.


Assuntos
Vacinas , Análise Custo-Benefício , Eletrônica , Índia , Inteligência , Vacinação
20.
Mitochondrion ; 57: 97-107, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33253916

RESUMO

BACKGROUND: Vascular remodeling plays a pivotal role in regulation of hypoxia-mediated pulmonary and systemic hypertension via the phenotypic modulation of smooth muscle cells (SMCs) of pulmonary and systemic arteries, respectively. Mitochondria serve as putative oxygen (O2) sensors, and consequently, adaptations to hypoxia are mediated via HIF (hypoxia-inducible factors) activation, which impinges on mitochondrial function by suppressing the mitochondrial activity. Therefore, we explored the implication of hypoxia-mediated mitochondrial stress in pulmonary and systemic arterial remodeling. METHODS: The hypoxic (10% O2) effect on human pulmonary artery and aortic SMCs was examined in vitro by cell viability assay, proliferation index, autophagy, and comet assays. Mitochondrial ROS (mtROS), membrane potential (MMP), and mitochondrial morphology were assessed using mitochondrial-selective fluorescent probes. Further, the cell cycle distribution was analyzed by flow cytometry using propidium iodide staining. RESULTS: Our data indicate no significant alterations in cell viability and active proliferation of hypoxic PASMCs; however, an excessive rise in mtROS production and disrupted MMP, accompanied by enhanced DNA damage and reduced autophagy was observed, highlighting the 'apoptosis resistance' phenotype in these cells. Conversely, in hypoxia-treated hASMCs, a modest rise in mtROS levels was associated with reduced DNA damage; followed by upregulated autophagy; increased S-phase DNA content and cell viability, depicting the cytoprotective effect of hypoxia-induced autophagy against mitochondrial damage in hASMCs. CONCLUSION: Our findings suggest that differential impact of mtROS on proliferative capacity may contribute to the variable hypoxic responses in pulmonary and systemic vasculature. Therefore, targeting mtROS may serve as an effective therapeutic strategy to prevent hypoxia-induced hypertension.


Assuntos
Aorta Torácica/citologia , Mitocôndrias/metabolismo , Artéria Pulmonar/citologia , Espécies Reativas de Oxigênio/metabolismo , Aorta Torácica/metabolismo , Diferenciação Celular , Hipóxia Celular , Linhagem Celular , Proliferação de Células , Sobrevivência Celular , Dano ao DNA , Humanos , Potencial da Membrana Mitocondrial , Miócitos de Músculo Liso/citologia , Miócitos de Músculo Liso/metabolismo , Artéria Pulmonar/metabolismo , Remodelação Vascular
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA