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1.
Pediatr Res ; 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38622259

RESUMO

BACKGROUND: Umbilical cord blood culture (UCBC) may have a diagnostic utility for early onset sepsis (EOS) detection in preterm infants. It may prevent sampling the newborn and collect a higher volume of blood for pathogenic identification. METHODS: Retrospective analysis at a tertiary care center in Canada of preterm infants ≤ 34 0/7 weeks' gestation with UCBC taken at birth. RESULTS: Of 505 admitted infants, 195 had UCBC. 170 UCBCs were negative; 44 of these had also negative neonatal blood culture (NBC). No infants with negative UCBC showed EOS symptoms in the first week of life. 25 UCBCs were positive: 18 were contaminants (all with negative NBC) and 7 were confirmed as EOS. 18 infants with UCBC contaminants remained asymptomatic. 7 EOS cases were identified, with varying bacteriological profiles; 5 displayed sepsis symptoms while 2 were asymptomatic. Risk of EOS increased with prolonged rupture of membranes. CONCLUSIONS: UCBC effectively detected EOS establishing it as a method with possibly better diagnostic performance than NBC in high-risk neonates. Further studies are needed to improve UCBC technique and lower contamination rates. IMPACT: Umbilical cord blood culture has a higher bacterial identification rate than peripheral venous blood culture for the early identification of early-onset sepsis in preterm infants. Umbilical cord blood cultures that showed no growth were reliable predictors of not developing early onset sepsis. Umbilical cord blood culture should be considered as part of the evaluation for early onset sepsis in the preterm infants.

2.
Am J Perinatol ; 2023 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-37726014

RESUMO

OBJECTIVE: There is no recommendation in the literature on optimal positioning of the newborn immediately at birth during delayed cord clamping. To evaluate if prone positioning on the mother's chest at birth during delayed cord clamping leads to a higher hematocrit at 30 hours of life compared to supine positioning. STUDY DESIGN: A randomized unblinded trial comparing prone and supine position of the newborn before umbilical cord clamping. Healthy newborns ≥36 weeks gestational age and born vaginally with cephalic presentation were included. The newborn was randomized to prone or supine position. Umbilical cord clamping was delayed in both groups to 1 minute after birth. The primary outcome was hematocrit at 30 hours of life. As a secondary outcome, cerebral tissue oxygenation (CrSO2) values were compared between both groups by near infrared spectroscopy. RESULTS: There was no difference in hematocrit at 30 hours of life between supine and prone positions with a mean at 52 and 53.1, respectively, mean difference -1.1 (95% confidence interval:-2.7, 0.5), p = 0.17. Newborns in supine and prone positions had comparable level of CrSO2 at 30 hours of life with a mean at 84.1 and 82.2, respectively, mean difference 1.9 (-0.2, 4.0), p = 0.07. There was no correlation between hematocrit and CrSO2 at 30 hours of life (r = 0.14). CONCLUSION: There was no difference between prone and supine positioning immediately after birth during delayed cord clamping on hematocrit at 30 hours of life. In the absence of clear findings, further studies with assessment of the effect of position on breastfeeding success in the case room, on maternal satisfaction and outcome beyond 30 hours are needed to make adequate recommendations on positioning. KEY POINTS: · Delayed cord clamping at 60 seconds is recommended at birth, but optimal positioning is unknown.. · A randomized trial was conducted to compare hematocrit at 36 hours of life of prone versus supine position.. · No difference in hematocrit was found in prone versus supine position during delayed cord clamping..

3.
Molecules ; 27(24)2022 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-36558055

RESUMO

This research work focuses on the potential application of an organic compound, santalol, obtained from santalum album, in the inhibition of the enzyme tyrosinase, which is actively involved in the biosynthesis of melanin pigment. Over-production of melanin causes undesirable pigmentation in humans as well as other organisms and significantly downgrades their aesthetic value. The study is designed to explain the purification of tyrosinase from the mushroom Agaricus bisporus, followed by activity assays and enzyme kinetics to give insight into the santalol-modulated tyrosinase inhibition in a dose-dependent manner. The multi-spectroscopic techniques such as UV-vis, fluorescence, and isothermal calorimetry are employed to deduce the efficiency of santalol as a potential candidate against tyrosinase enzyme activity. Experimental results are further verified by molecular docking. Santalol, derived from the essential oils of santalum album, has been widely used as a remedy for skin disorders and a potion for a fair complexion since ancient times. Based on enzyme kinetics and biophysical characterization, this is the first scientific evidence where santalol inhibits tyrosinase, and santalol may be employed in the agriculture, food, and cosmetic industries to prevent excess melanin formation or browning.


Assuntos
Melaninas , Monofenol Mono-Oxigenase , Humanos , Simulação de Acoplamento Molecular , Sesquiterpenos Policíclicos , Inibidores Enzimáticos/química
4.
Wiad Lek ; 74(12): 3184-3187, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35058387

RESUMO

OBJECTIVE: The aim: In this study, we try to investigate whether evolocumab or its combination with atorvastatin has potent effect on lipid profile? PATIENTS AND METHODS: Materials and methods: Forty local domestic male rabbits were included in this study, and categorized into four group, two untreated group (nohypercholostermic and untreated hypercholostermic) and treated groups (evolocumab treated group at dose 6.1mg/kg/2Wk and atorvastatin treated group at dose 3.5 mg/kg/day),the blood samples were analyzed at base line and after 5week and at the end of the study after 10 weeks for lipid profile by standard enzymatic methods. RESULTS: Results: The serum levels of total cholesterol, triglyceride, low-density lipoprotein cholesterol (LDL-C),were increased after 10 weeks of administration of the atherogenic diet significantly (p<0.05) as compared with other groups (group I: 61.19 ± 14, group ΙΙ: 1301 ± 443, group ΙΙΙ 41.01 ± 5.81: 280 ± 50, group ΙV: 190 ± 38 group Ι: 46 ± 15.0, group ΙΙ: 256.0 ± 24.0, group ΙΙΙ: 101.0±28, group ΙV: 48.18 ± 15.27, group Ι: 29±14.50, group ΙΙ: 929±251.0, group ΙΙΙ: 283.0±36, group ΙV: 209.0±33mg/dl) respectively while the levels of high-density lipoprotein cholesterol (HDL-C) decrease (18.0±4.1 to 15.0±3.0mg/dl). Compared with evolocumab monotherapy, combination of evolocumab and atorvastatin reduce serum level of total cholesterol, triglyceride and low density lipoprotein more than that of evolocumab. CONCLUSION: Conclusions: Preproteins convert as esubtilisin/kexin type 9 inhibitor regulates the serum levels of lipid and cholesterol by lowering LDL-C, and the results also indicate that combination of evolocumab and atorvastatin are more potent in lowering the lipid profile and then reduce progression of atherosclerosis than evolocumab alone in rabbits suggesting that this combination might be beneficial for treatment of atherosclerosis.


Assuntos
Anticolesterolemiantes , Animais , Anticorpos Monoclonais Humanizados , Atorvastatina , LDL-Colesterol , Lipídeos , Masculino , Coelhos
5.
Respirology ; 25(7): 750-755, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-31846131

RESUMO

BACKGROUND AND OBJECTIVE: Chemical pleurodesis is performed for patients with MPE with a published success rate of around 80%. It has been postulated that inflammation is key in achieving successful pleural symphysis, as evidenced by higher amounts of pain or detected inflammatory response. Patients with mesothelioma are postulated to have a lower rate of successful pleurodesis due to lack of normal pleural tissue enabling an inflammatory response. METHODS: The TIME1 trial data set, in which pleurodesis success and pain were co-primary outcome measures, was used to address a number of these assumptions. Pain score, systemic inflammatory parameters as a marker of pleural inflammation and cancer type were analysed in relation to pleurodesis success. RESULTS: In total, 285 patients were included with an overall success rate of 81.4%. There was a significantly higher rise in CRP in the Pleurodesis Success group compared with the Pleurodesis Failure group (mean difference: 19.2, 95% CI of the difference: 6.2-32.0, P = 0.004) but no significant change in WCC. There was no significant difference in pain scores or analgesia requirements between the groups. Patients with mesothelioma had a lower rate of pleurodesis success than non-mesothelioma patients (73.3% vs 84.9%, χ2 = 5.1, P = 0.023). CONCLUSION: Change in CRP during pleurodesis is associated with successful pleurodesis but higher levels of pain are not associated. Patients with mesothelioma appear less likely to undergo successful pleurodesis than patients with other malignancies, but there is still a significant rise in systemic inflammatory markers. The mechanisms of these findings are unclear but warrant further investigation.


Assuntos
Proteína C-Reativa/imunologia , Dor/imunologia , Derrame Pleural Maligno/terapia , Pleurodese/métodos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Contagem de Leucócitos , Masculino , Mesotelioma/complicações , Pessoa de Meia-Idade , Derrame Pleural Maligno/etiologia , Neoplasias Pleurais/complicações , Ensaios Clínicos Controlados Aleatórios como Assunto , Talco/administração & dosagem , Toracoscopia , Resultado do Tratamento
6.
J Pediatr ; 200: 64-70.e5, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29958673

RESUMO

OBJECTIVE: To assess the influence of resiliency and stress on parental perspectives of the future quality of life (QOL) of neonatal intensive care unit (NICU) newborns at high risk of neurodevelopmental disability. STUDY DESIGN: We conducted a prospective multicenter questionnaire study. Perspectives from parents of newborns at high risk of disability as per neonatal follow-up criteria were compared with a low-risk group consisting of parents of all other NICU newborns. Parental anxiety and resiliency, measured using Brief Symptom Inventory and Sense of Coherence scales, respectively, were associated with QOL projections. RESULTS: Parents returned 129 (81%) questionnaires. Parents considering their newborn as currently sicker were more stressed (P = .011) and worried about future physical (P < .001) and mental (P < .001) health, QOL (P < .001), coping (P = .019), and financial (P < .001) and emotional (P = .002) impact on the family. Ooverall, there was no difference between parents of high-risk and low-risk newborns on QOL projections. Almost all parents projected a good future QOL. Less resilient parents projected more pain (P = .04), more financial (P = .019), and emotional (P = .031) impact on their family, and were 10 times more likely to predict that their newborn would remain chronically ill. CONCLUSIONS: Parental projection of future QOL of NICU newborns is not associated with risk of disability. Most parents predict overall a good future QOL and focus more on familial impact. The Sense of Coherence scale may be used in clinical settings to identify less resilient parents.


Assuntos
Adaptação Psicológica , Unidades de Terapia Intensiva Neonatal , Pais/psicologia , Qualidade de Vida , Estresse Psicológico/psicologia , Adolescente , Adulto , Feminino , Humanos , Recém-Nascido , Masculino , Estudos Prospectivos , Inquéritos e Questionários , Adulto Jovem
7.
BMC Med Educ ; 18(1): 230, 2018 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-30285715

RESUMO

BACKGROUND: Neonatal intubation is a stressful procedure taught to trainees. This procedure can attract additional observers. The impact of observers on neonatal intubation performance by trainees has not been studied. Our objective was to evaluate if additional observers present during neonatal mannequin endotracheal intubation (NMEI) by junior trainees, affects their performance and their stress levels. METHODS: A randomized cross over trial was conducted. First year residents with no experience in neonatal intubation were assigned to NMEI condition A or B randomly on day 1. Subjects were crossed over to the other condition on day 2. Condition A: Only one audience member was present Condition B: Presence of an audience of 5 health care providers. Differences in the time to successful NMEI was recorded and compared between conditions. A portable heart rate monitor was used to measure peak heart rate above baseline during NMEI under both conditions. RESULTS: Forty nine residents were recruited. 72% were female with a median age of 25 years (IQR: 24-27). Time to successful intubation was comparable under both conditions with a mean difference of - 3.94 s (95% CI: -8.2,0.4). Peak heart rate was significantly lower under condition A (mean difference - 11.9 beats/min, 95% CI -15.98 to - 7.78). CONCLUSION: Although the time required to NMEI did not increase, our results suggest that presence of observers significantly increases trainee stress. The addition of extraneous observers during simulation training may better equip residents to deal with such stressors. TRIAL REGISTRATION: Date of registration: March 2016, NCT 02726724 .


Assuntos
Competência Clínica/normas , Internato e Residência/organização & administração , Manequins , Pediatria/educação , Ressuscitação/educação , Treinamento por Simulação/métodos , Estudos Cross-Over , Humanos , Recém-Nascido , Intubação Intratraqueal/métodos , Laringoscopia/educação , Gravação em Vídeo/métodos
8.
Paediatr Child Health ; 22(3): 120-124, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29479196

RESUMO

BACKGROUND: Minimally invasive surfactant therapy (MIST) is a new strategy to avoid mechanical ventilation (MV) in respiratory distress syndrome. The primary aim of this study was to test MIST as a means of avoiding MV exposure and pneumothorax occurrence in moderate and late preterm infants (32 to 36 weeks' gestational age). METHODS: This was a randomized controlled trial including three Canadian centres. Patients were randomized to standard management or to the intervention if they required nasal continuous positive airway pressure of 6 cm H2O and 35% FiO2 in the first 24 hours of life. Patients from the intervention group received MIST immediately after inclusion. The primary outcome was either need for MV or development of a pneumothorax requiring a chest tube. To ensure that clinicians were not biased toward delaying intubation in the intervention group, clinical failure criteria were also used as a primary outcome. The primary outcome was analyzed using bivariate and multivariate logistic regressions. RESULTS: Among 45 randomized patients, 24 were assigned to MIST and 21 to standard management. Eight infants (33%) from the intervention group met the primary outcome criteria versus 19 (90%) in the control group (absolute risk reduction 0.57, 95% confidence interval 0.54 to 0.60). One patient in each group reached the primary outcome because of pneumothorax occurrence. The other patients were exposed to MV. None of the patients reached the clinical failure criteria. CONCLUSION: MIST for respiratory distress syndrome management in moderate and late preterm infants was associated with a significant reduction of MV exposure and pneumothorax occurrence.

9.
Am J Perinatol ; 33(2): 195-202, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26352683

RESUMO

OBJECTIVE: The aim of this article was to describe the severity of brain injury and/or mortality in a cohort of newborns referred for therapeutic hypothermia, in relation to the degree of encephalopathy on admission, and to especially look at the ones with initial mild encephalopathy. STUDY DESIGN: Term newborns with perinatal depression referred to our neonatal intensive care unit for possible hypothermia treatment from 2008 to 2012 were enrolled prospectively. The modified Sarnat score on admission was correlated with severity of brain injury on brain imaging and/or autopsy. RESULTS: A total of 215 newborns were referred for possible cooling. Sixty percent (128/215) were cooled. Most of the not-cooled newborns with an available brain magnetic resonance imaging (85% = 50/59) had an initial mild encephalopathy, and 40% (20/50) developed brain injury. Some cooled newborns had an initial mild encephalopathy (12% = 13/108); only 31% (4/13) developed brain injury. CONCLUSION: Our results demonstrated that several newborns with an initial mild encephalopathy developed subsequent brain injury, especially when they were not cooled.


Assuntos
Asfixia Neonatal/terapia , Encefalopatias/prevenção & controle , Lesões Encefálicas/prevenção & controle , Hipotermia Induzida/métodos , Asfixia Neonatal/complicações , Encéfalo/patologia , Encefalopatias/etiologia , Encefalopatias/patologia , Encefalopatias/terapia , Lesões Encefálicas/etiologia , Lesões Encefálicas/patologia , Lesões Encefálicas/terapia , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Imageamento por Ressonância Magnética , Masculino , Estudos Prospectivos , Encaminhamento e Consulta , Índice de Gravidade de Doença
10.
BMC Pregnancy Childbirth ; 15: 75, 2015 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-25886165

RESUMO

BACKGROUND: Since 2008, Participatory Action for Rural Development Innovation (PARI) Development Trust, with the support of Enfants du Monde, has been implementing a maternal and newborn health (MNH) program based on the World Health Organization's (WHO) framework for Working with Individuals, Families and Communities (IFC) to improve MNH in Netrokona district, Bangladesh. This program aims to empower women and families and increase utilization of quality health services, thereby helping women realize their rights related to maternal health. Birth preparedness and complication readiness and working with traditional birth attendants (TBAs) to exercise a new role in MNH and have formed key interventions of this program. The purpose of this study was to explore how the program has contributed to changing social norms and practices surrounding MNH at midpoint. METHODS: This study relied primarily on qualitative data collection. Two focus group discussions (FGDs) were conducted with women who were pregnant or had recently given birth and one FGD with each of the following groups: husbands, family members, TBAs, and health workers. In-depth interviews were conducted with women who were pregnant or had recently given birth, family members of these women, health care providers, TBAs and community health workers in selected intervention areas. RESULTS: Since implementation of interventions informants report an increase in planning for birth and complications and a shift in preference toward skilled care at birth. However, women still prefer to receive services at home. TBAs report encouraging women to access skilled care for both routine and emergency services. While community members' understanding of rights related to maternal health remains limited, they report increased women's participation in household decision- making processes, an important indicator of the realization of rights. CONCLUSION: Results suggest that community-level interventions aiming to affect change in social norms and practices surrounding MNH can influence knowledge and practices even after a short period of time. Further evaluations will be required to quantify the degree to which these changes are having an impact on health services utilization.


Assuntos
Saúde do Lactente , Serviços de Saúde Materna/estatística & dados numéricos , Assistência Perinatal , Serviços de Saúde Rural/estatística & dados numéricos , Saúde da Mulher , Adulto , Bangladesh , Feminino , Grupos Focais , Humanos , Saúde do Lactente/normas , Saúde do Lactente/estatística & dados numéricos , Recém-Nascido , Tocologia/métodos , Tocologia/estatística & dados numéricos , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Assistência Perinatal/métodos , Assistência Perinatal/organização & administração , Gravidez , Avaliação de Programas e Projetos de Saúde , Garantia da Qualidade dos Cuidados de Saúde/métodos , Melhoria de Qualidade , População Rural/estatística & dados numéricos , Saúde da Mulher/normas , Saúde da Mulher/estatística & dados numéricos
11.
JAMA ; 314(24): 2641-53, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26720026

RESUMO

IMPORTANCE: For treatment of malignant pleural effusion, nonsteroidal anti-inflammatory drugs (NSAIDs) are avoided because they may reduce pleurodesis efficacy. Smaller chest tubes may be less painful than larger tubes, but efficacy in pleurodesis has not been proven. OBJECTIVE: To assess the effect of chest tube size and analgesia (NSAIDs vs opiates) on pain and clinical efficacy related to pleurodesis in patients with malignant pleural effusion. DESIGN, SETTING, AND PARTICIPANTS: A 2×2 factorial phase 3 randomized clinical trial among 320 patients requiring pleurodesis in 16 UK hospitals from 2007 to 2013. INTERVENTIONS: Patients undergoing thoracoscopy (n = 206; clinical decision if biopsy was required) received a 24F chest tube and were randomized to receive opiates (n = 103) vs NSAIDs (n = 103), and those not undergoing thoracoscopy (n = 114) were randomized to 1 of 4 groups (24F chest tube and opioids [n = 28]; 24F chest tube and NSAIDs [n = 29]; 12F chest tube and opioids [n = 29]; or 12F chest tube and NSAIDs [n = 28]). MAIN OUTCOMES AND MEASURES: Pain while chest tube was in place (0- to 100-mm visual analog scale [VAS] 4 times/d; superiority comparison) and pleurodesis efficacy at 3 months (failure defined as need for further pleural intervention; noninferiority comparison; margin, 15%). RESULTS: Pain scores in the opiate group (n = 150) vs the NSAID group (n = 144) were not significantly different (mean VAS score, 23.8 mm vs 22.1 mm; adjusted difference, -1.5 mm; 95% CI, -5.0 to 2.0 mm; P = .40), but the NSAID group required more rescue analgesia (26.3% vs 38.1%; rate ratio, 2.1; 95% CI, 1.3-3.4; P = .003). Pleurodesis failure occurred in 30 patients (20%) in the opiate group and 33 (23%) in the NSAID group, meeting criteria for noninferiority (difference, -3%; 1-sided 95% CI, -10% to ∞; P = .004 for noninferiority). Pain scores were lower among patients in the 12F chest tube group (n = 54) vs the 24F group (n = 56) (mean VAS score, 22.0 mm vs 26.8 mm; adjusted difference, -6.0 mm; 95% CI, -11.7 to -0.2 mm; P = .04) and 12F chest tubes vs 24F chest tubes were associated with higher pleurodesis failure (30% vs 24%), failing to meet noninferiority criteria (difference, -6%; 1-sided 95% CI, -20% to ∞; P = .14 for noninferiority). Complications during chest tube insertion occurred more commonly with 12F tubes (14% vs 24%; odds ratio, 1.91; P = .20). CONCLUSIONS AND RELEVANCE: Use of NSAIDs vs opiates resulted in no significant difference in pain scores but was associated with more rescue medication. NSAID use resulted in noninferior rates of pleurodesis efficacy at 3 months. Placement of 12F chest tubes vs 24F chest tubes was associated with a statistically significant but clinically modest reduction in pain but failed to meet noninferiority criteria for pleurodesis efficacy. TRIAL REGISTRATION: isrctn.org Identifier: ISRCTN33288337.


Assuntos
Analgésicos Opioides/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , Tubos Torácicos/efeitos adversos , Manejo da Dor/métodos , Derrame Pleural Maligno/terapia , Pleurodese/métodos , Idoso , Algoritmos , Analgesia/métodos , Analgésicos Opioides/efeitos adversos , Anti-Inflamatórios não Esteroides/efeitos adversos , Intervalos de Confiança , Desenho de Equipamento , Feminino , Humanos , Masculino , Medição da Dor/métodos , Derrame Pleural Maligno/complicações , Terapia de Salvação/métodos , Terapia de Salvação/estatística & dados numéricos , Toracoscopia/instrumentação , Falha de Tratamento
12.
Qual Health Res ; 25(6): 806-19, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25857652

RESUMO

Despite the growing evidence linking social capital to improvements in health and health behaviors, reliable measures of social capital are lacking in low-income countries. To accurately measure social capital in new contexts, there is a need to validate social capital survey questions in each new cultural setting. In this article, we examine the content validity of the measurement of social capital in Bangladesh using qualitative methods. In December 2012, we conducted four focus group discussions and 32 cognitive interviews in one rural subdistrict (Durgapur) and one urban slum (Mirpur). We used the findings from the focus groups and cognitive interviews to create a new social capital survey instrument that can be used by health and development organizations in Bangladesh. Furthermore, in this article, we provide insight into social capital survey research in general, including suggestions for the measurement of group membership, social support, collective action, and social trust.


Assuntos
Cognição , Países em Desenvolvimento , Inquéritos Epidemiológicos , Pesquisa Qualitativa , Capital Social , Inquéritos e Questionários , Adulto , Bangladesh , Feminino , Grupos Focais , Humanos , Entrevista Psicológica , Masculino , Pessoa de Meia-Idade , Áreas de Pobreza , População Rural , Identificação Social , Apoio Social , Confiança
13.
N Engl J Med ; 365(6): 518-26, 2011 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-21830966

RESUMO

BACKGROUND: More than 30% of patients with pleural infection either die or require surgery. Drainage of infected fluid is key to successful treatment, but intrapleural fibrinolytic therapy did not improve outcomes in an earlier, large, randomized trial. METHODS: We conducted a blinded, 2-by-2 factorial trial in which 210 patients with pleural infection were randomly assigned to receive one of four study treatments for 3 days: double placebo, intrapleural tissue plasminogen activator (t-PA) and DNase, t-PA and placebo, or DNase and placebo. The primary outcome was the change in pleural opacity, measured as the percentage of the hemithorax occupied by effusion, on chest radiography on day 7 as compared with day 1. Secondary outcomes included referral for surgery, duration of hospital stay, and adverse events. RESULTS: The mean (±SD) change in pleural opacity was greater in the t-PA-DNase group than in the placebo group (-29.5±23.3% vs. -17.2±19.6%; difference, -7.9%; 95% confidence interval [CI], -13.4 to -2.4; P=0.005); the change observed with t-PA alone and with DNase alone (-17.2±24.3 and -14.7±16.4%, respectively) was not significantly different from that observed with placebo. The frequency of surgical referral at 3 months was lower in the t-PA-DNase group than in the placebo group (2 of 48 patients [4%] vs. 8 of 51 patients [16%]; odds ratio for surgical referral, 0.17; 95% CI, 0.03 to 0.87; P=0.03) but was greater in the DNase group (18 of 46 patients [39%]) than in the placebo group (odds ratio, 3.56; 95% CI, 1.30 to 9.75; P=0.01). Combined t-PA-DNase therapy was associated with a reduction in the hospital stay, as compared with placebo (difference, -6.7 days; 95% CI, -12.0 to -1.9; P=0.006); the hospital stay with either agent alone was not significantly different from that with placebo. The frequency of adverse events did not differ significantly among the groups. CONCLUSIONS: Intrapleural t-PA-DNase therapy improved fluid drainage in patients with pleural infection and reduced the frequency of surgical referral and the duration of the hospital stay. Treatment with DNase alone or t-PA alone was ineffective. (Funded by an unrestricted educational grant to the University of Oxford from Roche UK and by others; Current Controlled Trials number, ISRCTN57454527.).


Assuntos
Desoxirribonucleases/uso terapêutico , Fibrinolíticos/uso terapêutico , Doenças Pleurais/tratamento farmacológico , Derrame Pleural/tratamento farmacológico , Ativador de Plasminogênio Tecidual/uso terapêutico , Adulto , Idoso , Desoxirribonucleases/efeitos adversos , Método Duplo-Cego , Feminino , Fibrinolíticos/efeitos adversos , Humanos , Instilação de Medicamentos , Análise de Intenção de Tratamento , Modelos Lineares , Pulmão/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Doenças Pleurais/diagnóstico por imagem , Doenças Pleurais/mortalidade , Derrame Pleural/diagnóstico por imagem , Radiografia , Ativador de Plasminogênio Tecidual/efeitos adversos
14.
J Sleep Res ; 22(1): 70-5, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22716195

RESUMO

We investigate the effects of exenatide on excessive daytime sleepiness (EDS), driving performance and depression score in patients with type 2 diabetes with EDS. Eight obese patients with diabetes but without obstructive sleep apnoea (OSA) participated in a placebo-controlled single-blind study during which multiple wakefulness and sleep latency test, Epworth score, driving performance, depression score, fasting glucose and glycated haemoglobin (HbA1c) levels were assessed at baseline, end of placebo and treatment phase at baseline and after 22 weeks of treatment. Mean (±standard error of the mean) age, body mass index (kg m(2) ) and HbA1c [mmol mol(-1) (%)] of patients at baseline were 50 ± 4.9 years, 37.6 ± 1.1 and 65 ± 19 (8.06 ± 0.41), respectively. When compared to placebo, exenatide treatment was associated with a decrease in both subjective and objective sleepiness, based on the Epworth score reduction and the sleep latency increase assessed by multiple objective sleepiness and sustained attention (OSLER) tests, respectively. Mean sleep latency time (adjusted for change in HbA1c and weight) were 32.1 ± 1.7, 29.1 ± 1.7 and 37.7 ± 1.7, respectively (P = 0.002). Modelling for covariates suggested that improvement in mean sleep latency time is predicted by changes in weight (P = 0.003), but not by changes in HbA1c (P = 0.054). Epworth sleepiness score was reduced significantly (values for placebo versus exenatide: 11.3 ± 1.2 versus 5.7 ± 1.3; P = 0.003). No significant change was noted in the depression score and driving performance. Exenatide is associated with a significant reduction in objective sleepiness in obese patients with type 2 diabetes without OSA, independent of HbA1c levels. These findings could form a basis for further studies to investigate the pathophysiological mechanisms of sleepiness in obese patients with type 2 diabetes.


Assuntos
Diabetes Mellitus Tipo 2/tratamento farmacológico , Distúrbios do Sono por Sonolência Excessiva/tratamento farmacológico , Hipoglicemiantes/uso terapêutico , Obesidade/complicações , Peptídeos/uso terapêutico , Peçonhas/uso terapêutico , Vigília/efeitos dos fármacos , Condução de Veículo/psicologia , Proteína C-Reativa/análise , Depressão/complicações , Diabetes Mellitus Tipo 2/complicações , Distúrbios do Sono por Sonolência Excessiva/etiologia , Exenatida , Nível de Saúde , Humanos , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Obesidade/tratamento farmacológico , Escalas de Graduação Psiquiátrica , Método Simples-Cego , Fator de Necrose Tumoral alfa/sangue
15.
J Med Life ; 16(5): 759-765, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37520489

RESUMO

Evolocumab, a PCSK-9 inhibitor, is known for its ability to reduce low-density lipoprotein cholesterol (LDL-C). This study aimed to investigate the effects of evolocumab, alone or in combination with atorvastatin, on the progression of atherosclerosis. Fifty male domestic rabbits were randomly assigned to five groups: control, high cholesterol diet, evolocumab vehicle (dimethyl sulfoxide, DMSO), evolocumab alone, and evolocumab plus atorvastatin. Serum levels of interleukin 10 (IL-10), IL-17, IL-1ß, intracellular adhesion molecule (ICAM), and vascular adhesion molecule (VCAM) were measured. Toll-like receptor (TLR) expression on monocytes was evaluated using flow cytometry. Histopathological examination and measurement of intimal thickness (IT) were also conducted. The results revealed that the evolocumab produced a statistically significant (p<0.05) reduction in lipid profile at 5 weeks, with the peak effect occurring at 10 weeks. Furthermore, the inhibitor reduced TLRs at 10 weeks to 10.83±1.8 and intimal thickness to 160.66±9.45. IL-17, IL-1ß, ICAM, and VCAM were significantly reduced by evolocumab treatment, with the improvement of the histopathological changes in the aortic wall. The combination of evolocumab and atorvastatin caused a more statistically significant reduction in TLRs at 10 weeks to 5.08±1.2 and intimal thickness to 121.79±5.3. IL-17, IL-1ß, ICAM, and VCAM were significantly (p<0.05) reduced by the combination, and the histopathological changes in the aortic wall were significantly improved. In conclusion, evolocumab delays the progression of atherosclerosis by modulating inflammatory pathways.


Assuntos
Aterosclerose , Interleucina-17 , Animais , Masculino , Coelhos , Atorvastatina/farmacologia , Atorvastatina/uso terapêutico , Aterosclerose/tratamento farmacológico , LDL-Colesterol , Resultado do Tratamento
16.
BMC Pregnancy Childbirth ; 12: 28, 2012 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-22494576

RESUMO

BACKGROUND: A primary cause of high maternal mortality in Bangladesh is lack of access to professional delivery care. Examining the role of the family, particularly the husband, during pregnancy and childbirth is important to understanding women's access to and utilization of professional maternal health services that can prevent maternal mortality. This qualitative study examines husbands' involvement during childbirth and professional delivery care utilization in a rural sub-district of Netrokona district, Bangladesh. METHODS: Using purposive sampling, ten households utilizing a skilled attendant during the birth of the youngest child were selected and matched with ten households utilizing an untrained traditional birth attendant, or dhatri. Households were selected based on a set of inclusion criteria, such as approximate household income, ethnicity, and distance to the nearest hospital. Twenty semi-structured interviews were conducted in Bangla with husbands in these households in June 2010. Interviews were transcribed, translated into English, and analyzed using NVivo 9.0. RESULTS: By purposefully selecting households that differed on the type of provider utilized during delivery, common themes--high costs, poor transportation, and long distances to health facilities--were eliminated as sufficient barriers to the utilization of professional delivery care. Divergent themes, namely husbands' social support and perceived social norms, were identified as underlying factors associated with delivery care utilization. We found that husbands whose wives utilized professional delivery care provided emotional, instrumental and informational support to their wives during delivery and believed that medical intervention was necessary. By contrast, husbands whose wives utilized an untrained dhatri at home were uninvolved during delivery and believed childbirth should take place at home according to local traditions. CONCLUSIONS: This study provides novel evidence about male involvement during childbirth in rural Bangladesh. These findings have important implications for program planners, who should pursue culturally sensitive ways to involve husbands in maternal health interventions and assess the effectiveness of education strategies targeted at husbands.


Assuntos
Relações Familiares , Acessibilidade aos Serviços de Saúde , Assistência Perinatal/estatística & dados numéricos , Serviços de Saúde Rural/estatística & dados numéricos , Cônjuges , Adulto , Bangladesh , Características Culturais , Parto Obstétrico , Feminino , Pesquisas sobre Atenção à Saúde , Parto Domiciliar/estatística & dados numéricos , Humanos , Entrevistas como Assunto , Masculino , Tocologia , Gravidez , Pesquisa Qualitativa , Papel (figurativo) , Apoio Social , Recursos Humanos
17.
J Med Life ; 15(6): 751-756, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35928361

RESUMO

Inflammatory cytokines, cell adhesion molecules, and toll-like receptors (TLRs) play an important role in atherosclerosis. The aim of this study was to further evaluate the role of inflammatory cytokines, cell adhesion molecules, and toll-like receptors in atherosclerosis. Forty local breed domestic male rabbits were divided randomly into 4 groups, 10 rabbits each. Group I was the control group, group II received a high cholesterol diet, group III received the drug solvent dimethyl sulfoxide (DMSO), and group IV received Atorvastatin (3.5 mg/kg/day). Blood samples were collected at 0 times, 5 weeks, and at the end of 10 weeks. TLRs expression on monocyte was measured by flow cytometry, IL-10, IL-17, IL-1ß, intracellular adhesion molecule (ICAM), and vascular cell adhesion molecule (VCAM) were measured by ELISA. In group II, a high cholesterol diet led to a statistically significant elevation of lipids profile (TC, TG, and LDL) at both 5 weeks and 10 weeks compared to the control. The expression of TLRs was also increased compared to the control (13.53±2.5 to 25.79±6.5). The intimal thickness increased from 103.46±13.85 to 248.43±11.11. IL-17 increased significantly from 3.4±0.4 to 7.7±1.00, and IL-1ß increased from 1.04±0.19 to 9.66±1.4 (P 0.05) at 10 weeks. ICAM and VCAM increased from 1.7±0.16 to 8.2±0.74 and from 0.89±0.07 to 5.2±0.45, respectively. Atorvastatin significantly reduced TLRs at 10 weeks to 21.98±3.4 and intimal thickness to 191.6±15.59. IL-17, IL-1ß, ICAM, and VCAM were significantly reduced by Atorvastatin. Cytokines, cellular adhesion molecules, and probably TLRs have a role in the pathogenesis of hyperlipidemia and atherosclerosis.


Assuntos
Aterosclerose , Citocinas , Animais , Aterosclerose/tratamento farmacológico , Atorvastatina/farmacologia , Atorvastatina/uso terapêutico , Moléculas de Adesão Celular , Colesterol , Interleucina-17 , Masculino , Coelhos , Receptores Toll-Like , Molécula 1 de Adesão de Célula Vascular
18.
Curr Drug Targets ; 23(1): 2-20, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34165406

RESUMO

Parkinson's disease (PD) is one of the most common types of neurological disorder prevailing worldwide and is rapidly increasing in the elderly population across the globe. The cause of PD is still unknown, but a number of genetic as well as environmental factors contributing to the pathogenesis of Parkinson's disease have been identified. The hallmark of PD includes dopamine deficiency (neurotransmitter imbalance) due to the gradual loss of dopaminergic nerves in the substantia nigra in the midbrain. Studying the mutation of associated genes is particularly informative in understanding the fundamental molecular and pathogenic changes in PD. Intracellular accumulation of misfolded or degraded protein due to mutated genes leading to the manifestation of mitochondrial dysfunction, oxidative stress followed by multifaceted patho-physiologic symptoms. Other studies include the appearance of both motor and non-motor responses like resting tremor, muscle stiffness, slow movement and anxiety, anaemia, constipation, rapid eye movement sleep behaviour disorder. Many bioactive natural compounds have shown positive pharmacological results in treating a number of extensive disease models of PD. Despite the availability of end number of potent medicinal plants around the world, limited research has been done associated with various neurological disorders, including PD. The currently available dopamine-based drug treatments have several side-effects, further, not effective enough to combat PD completely. Therefore, various plant-based compounds with medicinal benefits have grabbed lots of attention of researchers to deal with various life-threatening neurodegenerative disorders like PD. On the basis of literature available till date, here, we have discussed and addressed the molecular basis, current scenario, and the best possible treatment of PD for the future with minimal or no side-effects using various key bioactive compounds from natural origin/medicinal plants.


Assuntos
Doença de Parkinson , Idoso , Dopamina , Humanos , Estresse Oxidativo , Doença de Parkinson/tratamento farmacológico , Doença de Parkinson/metabolismo
19.
ACS Omega ; 7(48): 44241-44250, 2022 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-36506193

RESUMO

The constant rise in energy demands, costs, and concerns about global warming has created a demand for new renewable alternative fuels that can be produced sustainably. Lignocellulose biomass can act as an excellent energy source and various value-added compounds like xylitol. In this research study, we have explored the xylose reductase that was obtained from the genome of a thermophilic fungus Thermothelomyces thermophilus while searching for an enzyme to convert xylose to xylitol at higher temperatures. The recombinant thermostable TtXR histidine-tagged fusion protein was expressed in Escherichia coli and successfully purified for the first time. Further, it was characterized for its function and novel structure at varying temperatures and pH. The enzyme showed maximal activity at 7.0 pH and favored  d-xylose over other pentoses and hexoses. Biophysical approaches such as ultraviolet-visible (UV-visible), fluorescence spectrometry, and far-UV circular dichroism (CD) spectroscopy were used to investigate the structural integrity of pure TtXR. This research highlights the potential application of uncharacterized xylose reductase as an alternate source for the effective utilization of lignocellulose in fermentation industries at elevated temperatures. Moreover, this research would give environment-friendly and long-term value-added products, like xylitol, from lignocellulosic feedstock for both scientific and commercial purposes.

20.
J Orthop ; 34: 61-66, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36035199

RESUMO

The need for bioresorbable implants that are able to dissolve within the body is rising, unlike their traditional counterparts. Bulk metallic glasses (BMGs) can perhaps serve this need, since they possess incredible properties, including high biocompatibility by virtue of their amorphous structure and absence of dislocations. However, the fabrication of BMGs is challenging, since, to achieve an amorphous structure, fast cooling is a pre-requisite which is very difficult to achieve for casting due to the fact that fast cooling rate and adequate rate of filling of the mold possess a trade-off relationship. Therefore, purpose of this work is to develop a simple novel hybrid approach that is cost effective and attempts to synthesize BMG based on Mg-Ca-Zn constituent. Synthesis of bioresorbable material was attempted by hybridizing friction stir processing (FSP) technique with gas tungsten arc welding (GTAW). FSP was performed with Magnesium as base material and Calcium granules as reinforcement. After FSP, GTAW process was performed by using Zn as filler material. The added Ca and Zn were found to effectively intermix with the Mg matrix in the FSP and GTAW steps, respectively. Especially, a relatively invariable distribution of Ca phases was observed in the stirred microstructure after FSP. Finally, a wide bead consisting of mixed dendritic and columnar cast structure was obtained. The current work is expected to alleviate the physiological issues pertaining to orthopaedic fixations and decrease the need for secondary surgeries in geriatric fractures.

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