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BACKGROUND: The preferred timing of umbilical-cord clamping in preterm infants is unclear. METHODS: We randomly assigned fetuses from women who were expected to deliver before 30 weeks of gestation to either immediate clamping of the umbilical cord (≤10 seconds after delivery) or delayed clamping (≥60 seconds after delivery). The primary composite outcome was death or major morbidity (defined as severe brain injury on postnatal ultrasonography, severe retinopathy of prematurity, necrotizing enterocolitis, or late-onset sepsis) by 36 weeks of postmenstrual age. Analyses were performed on an intention-to-treat basis, accounting for multiple births. RESULTS: Of 1634 fetuses that underwent randomization, 1566 were born alive before 30 weeks of gestation; of these, 782 were assigned to immediate cord clamping and 784 to delayed cord clamping. The median time between delivery and cord clamping was 5 seconds and 60 seconds in the respective groups. Complete data on the primary outcome were available for 1497 infants (95.6%). There was no significant difference in the incidence of the primary outcome between infants assigned to delayed clamping (37.0%) and those assigned to immediate clamping (37.2%) (relative risk, 1.00; 95% confidence interval, 0.88 to 1.13; P=0.96). The mortality was 6.4% in the delayed-clamping group and 9.0% in the immediate-clamping group (P=0.03 in unadjusted analyses; P=0.39 after post hoc adjustment for multiple secondary outcomes). There were no significant differences between the two groups in the incidences of chronic lung disease or other major morbidities. CONCLUSIONS: Among preterm infants, delayed cord clamping did not result in a lower incidence of the combined outcome of death or major morbidity at 36 weeks of gestation than immediate cord clamping. (Funded by the Australian National Health and Medical Research Council [NHMRC] and the NHMRC Clinical Trials Centre; APTS Australian and New Zealand Clinical Trials Registry number, ACTRN12610000633088 .).
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Parto Obstétrico/métodos , Enfermedades del Prematuro/epidemiología , Recien Nacido Prematuro , Mortalidad Perinatal , Cordón Umbilical , Puntaje de Apgar , Constricción , Femenino , Hematócrito , Humanos , Incidencia , Recién Nacido/sangre , Masculino , Circulación Placentaria , Embarazo , Factores de TiempoRESUMEN
AIM: Very preterm (VPT) children (≤32 weeks) have school readiness difficulties across multiple domains, but routine follow-up is often limited. We assessed the performance of VPT children on the Before School Check (B4SC), a community-based screening programme of school readiness at 4 years of age. METHODS: VPT children discharged from Wellington and Auckland Neonatal Intensive Care Units (2005-2009) were compared to a national control cohort born during the same period. Outcome measures included Parental Evaluation of Developmental Status (PEDS), parent and teacher versions of the Strengths and Difficulties Questionnaire (SDQ-P and SDQ-T) and vision and hearing screening, and were related to perinatal and demographic characteristics obtained from the Australia and New Zealand Neonatal Network database. RESULTS: Of 1105 VPT children, 920 were matched to the B4SC database, of whom 814 (88%) had one or more B4SC screening outcomes recorded. Compared with controls, VPT children were more likely to have abnormal PEDS (odds ratio (OR) = 1.79, 1.53-2.10), SDQ-P (OR = 1.82, 1.49-2.23), SDQ-T (OR = 1.51, 1.10-2.06), vision (OR = 2.00, 1.54-2.60) and hearing (OR = 1.95, 1.65-2.31) screen outcomes. While VPT children with an abnormal screen were more likely to be referred for further assessment, only 34%, 22%, 94% and 51% with abnormal PEDS, SDQ or vision and hearing screen, respectively, had evidence of appropriate referral. School readiness difficulties were significantly associated with birthweight z-score ≤ -1, vaginal delivery, significant cranial ultrasound abnormalities, younger maternal age, higher deprivation neighbourhood and ventilation ≥72 h. CONCLUSION: Community-based screening may be useful for identifying VPT children with school readiness difficulties, but low referral rates may limit the effectiveness of such programmes.
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Discapacidades del Desarrollo/diagnóstico , Recien Nacido Prematuro , Tamizaje Masivo , Desarrollo Infantil , Preescolar , Servicios de Salud Comunitaria , Femenino , Pruebas Auditivas , Humanos , Masculino , Nueva Zelanda , Oportunidad Relativa , Instituciones Académicas , Selección VisualRESUMEN
The present study was carried out to evaluate the effects of exposure at different doses of acephate on hematology, blood biochemistry, oxidative stress and immune system of Wistar rats. The experiment was carried out on 40 Wistar rats, which were divided in four groups. Animals of the three treatment groups were given with different sublethal doses (1/40th, 1/20th, 1/10th of lethal dose 50 value) of acephate by oral gavage. The hematology, blood biochemistry, oxidative stress marker, humoral immune response and cell-mediated immunity were evaluated following acephate exposure. Significant alteration in hematological parameters was not observed following different doses of acephate; however, significant alteration in alkaline phosphatase, gamma glutamyl transferase, acetyl cholinesterase, lipid peroxidase and superoxide dismutase was observed in medium- and high-dose group animals. Nonsignificant decrease in antibody titer in animals exposed to high dose has been observed compared with animals of control group. However, significant alteration in cell-mediated immunity was not observed in animals treated with acephate at different doses.
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Compuestos Organotiofosforados/toxicidad , Fosforamidas/toxicidad , Administración Oral , Animales , Análisis Químico de la Sangre , Femenino , Inmunidad/efectos de los fármacos , Masculino , Compuestos Organotiofosforados/administración & dosificación , Fosforamidas/administración & dosificación , Ratas , Ratas Wistar , Pruebas de Toxicidad SubcrónicaRESUMEN
BACKGROUND: Community-acquired pneumonia (CAP) is an acute lung infection affecting the alveoli in individuals who have not had recent exposure to healthcare settings. It is characterized by newly detected pulmonary infiltration on a chest X-ray or computed tomography scan, accompanied by at least two of the following symptoms: a new or worsening cough, shortness of breath, increased sputum production, fever or hypothermia, pleuritic chest pain, hypoxia, confusion, or an abnormal WBC count (either leukopenia or leukocytosis). It is a major contributor to global mortality and morbidity, especially in elderly populations. This study aims to investigate the etiology of CAP in our region and analyze the clinical characteristics of patients diagnosed with CAP. METHODOLOGY: This prospective, hospital-based study was conducted at Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pune, a 2,011-bed multispecialty hospital. The study included 100 patients over 18 years old, diagnosed with CAP, and hospitalized between January 2023 and January 2024. All patients underwent a thorough clinical assessment, and sputum cultures were collected on the day of admission. Patients under 18 years old, those who had been hospitalized within the preceding two weeks, individuals with pneumonia caused by tuberculosis or aspiration pneumonia, patients with compromised immune systems, and pregnant women were excluded. RESULTS: The study included 100 patients with a mean age of 53.13 years (±18.31). The most common age group was 59-68 years, which included 25 (25%) cases, followed by the 69-78 year age group with 18 (18%) cases and the 18-28 year age group with 15 (15%) cases. The majority were male, with 61 (61%) cases. Common symptoms included fever in 78 cases (78%), chest pain in 69 cases (69%), dyspnea in 65 cases (65%), and cough in 51 cases (51%). Sputum cultures showed growth in 65 cases (65%), with Klebsiella pneumoniae being the most prevalent pathogen in 28 cases (43%), followed by Streptococcus pneumoniae in 18 cases (28%). Together, these two pathogens accounted for 46 out of 65 positive samples (70%). CONCLUSIONS: This study highlights the clinical profile and rising etiology of K. pneumoniae in CAP in adults in Western India, particularly in the elderly. These findings underscore the need for periodic updates on CAP etiology to inform empirical treatment strategies effectively. Future research should use advanced diagnostics and diverse samples to refine CAP management, with continuous monitoring to update treatment protocols.
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Tributyltin (TBT), an organotin endocrine-disrupting substance, is recognized as one of the important toxic environmental pollutants. The present study was carried out to investigate the toxic effects of TBT on behavior and the ovary of adult zebrafish with a focus on oxidative stress markers and oocyte maturation. Adult zebrafish were exposed to three different concentrations (125, 250, and 500â¯ng/L of water) of TBT for 28 days. TBT exposure produced a concentration-dependent negative effect on the body weight and behavior (anxiety-like symptoms) of adult zebrafish. Alterations in the activity of superoxide dismutase (SOD) and catalase (CAT), the total antioxidant capacity of ovarian tissue by the highest exposure level of TBT resulted in lipid peroxidation as indicated by increased malondialdehyde (MDA) level. The numbers of early-vitellogenic oocytes were significantly increased in zebrafish exposed to TBT as low as 125â¯ng/L. However, the numbers and size of fully-grown (mature) oocytes were significantly reduced in the highest exposure group only. Correlation between the MDA level and pre-vitellogenic oocytes in the 500â¯ng/L group indicated that lipid peroxidation prevented the maturation of pre-vitellogenic oocytes. TBT exposure produced significant histological changes in the ovary as evidenced by disturbed maturation of oocytes. In conclusion, TBT adversely affected the maturation of oocytes in zebrafish ovary through oxidative stress-mediated mechanisms.
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Conducta Animal , Catalasa , Peroxidación de Lípido , Malondialdehído , Oocitos , Ovario , Estrés Oxidativo , Superóxido Dismutasa , Compuestos de Trialquiltina , Contaminantes Químicos del Agua , Pez Cebra , Animales , Compuestos de Trialquiltina/toxicidad , Estrés Oxidativo/efectos de los fármacos , Femenino , Ovario/efectos de los fármacos , Ovario/metabolismo , Ovario/patología , Oocitos/efectos de los fármacos , Oocitos/metabolismo , Superóxido Dismutasa/metabolismo , Conducta Animal/efectos de los fármacos , Contaminantes Químicos del Agua/toxicidad , Malondialdehído/metabolismo , Peroxidación de Lípido/efectos de los fármacos , Catalasa/metabolismo , Disruptores Endocrinos/toxicidadRESUMEN
UNLABELLED: Lung lavage using two aliquots of 15 mL/kg of dilute surfactant was performed in 30 ventilated infants with severe meconium aspiration syndrome (MAS). Mean recovery of instilled lavage fluid was 46%, with greater fluid return associated with lower mean airway pressure at 24 h and a shorter duration of respiratory support. CONCLUSION: Recovery of instilled lavage fluid is paramount in effective lung lavage in MAS and must be afforded priority in the lavage technique.
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Lavado Broncoalveolar/métodos , Síndrome de Aspiración de Meconio/terapia , Líquido del Lavado Bronquioalveolar , Terapia Combinada , Presión de las Vías Aéreas Positiva Contínua , Humanos , Recién Nacido , Modelos Lineales , Factores de Tiempo , Resultado del TratamientoRESUMEN
Destroyed lung syndrome (DLS) refers to the irreversible and complete destruction of lung tissue, often due to chronic or recurrent lung infections. Pulmonary tuberculosis (PTB) is a prominent cause of this condition, particularly prevalent in regions burdened by high PTB rates. This report delineates the case of a 60-year-old Indian male who presented with DLS as a consequence of a history of irregular PTB treatment. The patient complained of a productive cough, hemoptysis, fever, and dyspnea. A comprehensive evaluation confirmed the diagnosis, prompting the re-initiation of antitubercular therapy. This case report highlights the challenges and consequences of irregular PTB therapy leading to severe lung damage, emphasizing the significance of prompt and consistent treatment in preventing such debilitating outcomes.
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In the present work, 224 adult female zebrafish (56 fish in each group) were randomly divided into four groups (two control groups and two toxicity groups) as per duration of exposure (7 and 21 days). All fish of the two toxicity groups were exposed to 0.610 mM acrylamide (ACR) concentration for 7 and 21 days. The effects of ACR exposure on behavior, oxidative stress biomarkers, molecular expression of antioxidant genes (sod, cat, and nrf2), and histopathological examination of the brain and eye were examined. Our result shows that ACR exposure for 7 days produced an anxiety-like behavior in zebrafish. Short-term exposure of ACR resulted in alterations of oxidative stress markers (SOD and CAT activity, and the level of GSH and MDA) in the brain and eye of zebrafish. However, the antioxidant defense system of adult female zebrafish could be able to counteract the free radicals generated in long-term ACR exposure as indicated by non-significant difference in oxidative insult following short-term and long-term exposure. ACR exposure downregulated the mRNA expression of the sod, cat, and nrf2 (nuclear factor erythroid 2-related factor 2) genes in the brain and eye without significant difference between the two toxicity groups. Mild histological changes in the dorsal telencephalic area, tectum opticum, medulla, and hypothalamus area of the brain of zebrafish have been observed following short-term and long-term ACR exposure. In the eye, marked histological changes in the retinal pigmented epithelium layer (RPE), structural changes of the photoreceptor layer (PRL) with disorganized layer of rods and cones, and reduction of the relative thickness of the RPE, PRL, outer nuclear layer (ONL), and inner nuclear layer (INL) have been noted following ACR exposure for 21 days as compared to 7 days. ACR produced neurobehavioral aberrations and oxidative stress within 7 days of exposure, while various histological changes in the brain and eyes have been observed following long-term exposure (21 days) to ACR.
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Antioxidantes , Pez Cebra , Animales , Femenino , Antioxidantes/metabolismo , Pez Cebra/metabolismo , Acrilamida/metabolismo , Factor 2 Relacionado con NF-E2/genética , Factor 2 Relacionado con NF-E2/metabolismo , Estrés Oxidativo , Encéfalo , Superóxido Dismutasa/metabolismoRESUMEN
Nonylphenol and its derivatives use as plasticizer or additives in manufacturing industries. Effluents originated from industrial areas are being added to soil, ground water, river and marine water intentionally or unintentionally. Complex mixture of these contaminants enter the food chain and produce sub-lethal deleterious effects mainly on nervous and reproductive systems of aquatic animals and human beings. The information pertaining to oxidative stress-mediated alterations in brain of zebrafish would be helpful to understand the toxicity potential of such compounds in aquatic animals. The aim of the present study was to evaluate the behavioural changes, status of oxidative stress markers; sod, cat, and NF-E2-related factor 2 (nrf2) mRNA gene expression profile; and histopathological changes in the brain of adult zebrafish exposed to 4-nonylphenol (4NP) at concentration of 100 and 200 µg/L of water for 21 days. Zebrafish were divided into four groups viz; control (C1), vehicle (C2, ethanol 10 µg/L of water), treatment 1 (T1, 4-NP, 100 µg/L) and treatment 2 (T2, 4-NP, 200 µg/L). Both exposure levels of 4-NP adversely affected the exploratory behaviour of zebrafish and produced anxiety-like symptom. Concentration-dependent reduction in activity of superoxide dismutase and catalase; and glutathione level, with increased level of malondialdehyde recorded in the brain of exposed zebrafish. Gene expression analysis showed down regulation of sod, cat, nrf2 genes in brain of zebrafish from toxicity groups indicating 4-NP induced oxidative stress in brain. However, noticeable histological alterations were not observed in 4-NP exposed brain of zebrafish.
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Contaminantes Químicos del Agua , Pez Cebra , Animales , Humanos , Pez Cebra/metabolismo , Factor 2 Relacionado con NF-E2/metabolismo , Estrés Oxidativo , Encéfalo/metabolismo , Superóxido Dismutasa/metabolismo , Agua/metabolismo , Contaminantes Químicos del Agua/metabolismoRESUMEN
The toxicity of the binary mixture of cadmium (Cd) and mercury (Hg) on the ovary of adult zebrafish was evaluated in the present study. Adult female zebrafish were exposed to cadmium chloride (1 mg/L), mercury chloride (30 µg/L), and a binary mixture of both metals for 21 days. The toxic effects of both metals on the ovary were investigated by evaluating the oxidative stress markers and related gene expression in ovarian tissue along with the histopathological examination. The significantly decreased level of GSH and increased level of MDA in ovarian tissue of adult female zebrafish exposed to Cd + Hg indicated that the exposure of binary mixture of Cd and Hg caused more lipid peroxidation in the ovary. The significant changes in expression of mRNA of catalase (CAT) and nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2) were not observed in the ovary of zebrafish exposed to the binary mixture. Upon histological evaluation, a decreased number of full-growth (mature) oocytes along with degenerative changes due to Cd exposure were noticed, while ovary of zebrafish of the Hg-exposed group had shown a decreased number of pre-and early vitellogenic oocytes along with atretic previtellogenic oocytes compared to the control group. The ovary of zebrafish of the Cd + Hg-exposed group had shown a decreased number of previtellogenic oocytes with marked pathological changes in mature oocytes. Present findings elucidate that simultaneous long-term exposure of Cd and Hg compared to individual exposure significantly damaged the various stages of oocytes of an ovary of adult zebrafish.
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Cadmio , Mercurio , Animales , Cadmio/metabolismo , Cadmio/toxicidad , Femenino , Mercurio/metabolismo , Mercurio/toxicidad , Ovario/patología , Estrés Oxidativo , Pez Cebra/metabolismoRESUMEN
OBJECTIVE: To evaluate whether lung lavage with surfactant changes the duration of mechanical respiratory support or other outcomes in meconium aspiration syndrome (MAS). STUDY DESIGN: We conducted a randomized controlled trial that enrolled ventilated infants with MAS. Infants randomized to lavage received two 15-mL/kg aliquots of dilute bovine surfactant instilled into, and recovered from, the lung. Control subjects received standard care, which in both groups included high frequency ventilation, nitric oxide, and, where available, extracorporeal membrane oxygenation (ECMO). RESULTS: Sixty-six infants were randomized, with one ineligible infant excluded from analysis. Median duration of respiratory support was similar in infants who underwent lavage and control subjects (5.5 versus 6.0 days, P = .77). Requirement for high frequency ventilation and nitric oxide did not differ between the groups. Fewer infants who underwent lavage died or required ECMO: 10% (3/30) compared with 31% (11/35) in the control group (odds ratio, 0.24; 95% confidence interval, 0.060-0.97). Lavage transiently reduced oxygen saturation without substantial heart rate or blood pressure alterations. Mean airway pressure was more rapidly weaned in the lavage group after randomization. CONCLUSION: Lung lavage with dilute surfactant does not alter duration of respiratory support, but may reduce mortality, especially in units not offering ECMO.
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Productos Biológicos/administración & dosificación , Lavado Broncoalveolar , Síndrome de Aspiración de Meconio/terapia , Surfactantes Pulmonares/administración & dosificación , Oxigenación por Membrana Extracorpórea , Femenino , Ventilación de Alta Frecuencia , Humanos , Recién Nacido , Masculino , Óxido Nítrico/uso terapéutico , Análisis de Supervivencia , Factores de TiempoRESUMEN
Topical minoxidil is a common medication prescribed for treating hair loss-related problems. Currently a wide range of minoxidil concentrations (2% to 15%) have been prescribed for the topical treatment of hair loss, but the majority of minoxidil solutions contain potential skin irritating inactive ingredients such as propylene glycol and high amounts of alcohol that may cause undesirable side effects. In order to minimize these side effects, FOAMIL, a propylene glycol-free and alcohol-reduced foam vehicle, was developed to compound minoxidil solutions of varying dosages. Since long-term use of this drug is necessary to maintain the clinical results, the objective of this study was to conduct a 180-day bracketed validated stability-indicating study of four compounded minoxidil solutions (2%, 5.5%, 6%, 15%) in FOAMIL. The samples were prepared by mixing the minoxidil with an appropriate amount of FOAMIL without any heating or filtration process. The obtained preparations were packaged into 100-mL foamer bottles before sending out for physicochemical analyses at pre-determined time points (days; 0, 30, 60, 90, 120, 150, and 180) and antimicrobial effectiveness testing to thirdparty independent analytical laboratories. Our results showed that the strength of all minoxidil solutions remained within the United States Pharmacopeia specification (90% to 110%) for 180 days. There were no significant changes in pH measurements and physical stability (color, odor, precipitation). Antimicrobial effectiveness of the preservative system also met the United States Pharmacopeia requirements at the end of the 180-day stability study for all concentrations. Based on the U.S. Food and Drug Administration's guidance on bracketed study design, the findings of this study show that any concentration of minoxidil at or between 2% to 5.5% and 6% to 15% in FOAMIL can be considered stable for at least 180 days when stored at ambient condition.
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Minoxidil , Preparaciones Farmacéuticas , Administración Tópica , Alopecia , HumanosRESUMEN
OBJECTIVE: The objective of the study was to evaluate the cost-effectiveness of universal repeat human immunodeficiency virus (HIV) screening late in pregnancy as opposed to the existing system of single HIV test early in pregnancy. BACKGROUND: Strategy of universal repeat HIV screening in pregnancy to achieve Elimination of mother to child transmission in a low prevalence setting such as India should be examined from the cost-effectiveness point of view. METHODOLOGY: In a cross-sectional study, 2500 pregnant women with 32 weeks gestation or more and screened HIV nonreactive at least 3 months before the study were offered repeat HIV screening. A decision analysis model was used to determine cost-effectiveness of a repeat HIV screening late in pregnancy in both government (societal) and healthcare payer perspectives, followed by one-way sensitivity analysis at different rates of incident HIV in pregnancy. RESULTS: The incidence of HIV infection during pregnancy was 1.18/1000 women years (95% confidence interval: 0.29-4.7). The existing system of single HIV test is 1.9 times costlier per quality adjusted life years gained than the proposed system of repeat HIV screening. CONCLUSION: When the incidence of HIV in pregnancy is 1.18/1000 woman-years, even in settings with antenatal HIV positivity rates as low as 0.01%, repeat HIV screening in pregnancy is cost effective.
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INTRODUCTION: Scars are the end result of a biologic and natural process of wound repair after injury, surgery, acne, illness, burns, and infection. When skin is damaged, a fast and coordinated body response is triggered by four highly integrated and overlapping phases including homeostasis, inflammation, proliferation, and tissue remodeling. Healing of a skin wound may result in an abnormal scar if the balance among these four phases is lost during the healing process. Various topical treatments have been used for their ability to reduce unsightly scar formation. Recently, studies have shown improvement in scar appearance after treating with silicone gels containing natural herbal ingredients. The aim of this study is to evaluate the efficacy of a novel silicone-based gel containing copaiba oil (Copaderm) for prevention and/or appearance reduction of different types of abnormal scars. METHODS: This study was designed as a prospective, randomized, double-blind, placebo-controlled trial involving 42 patients with abnormal scars, divided into two groups. Each group received either a topical scar formulation consisting of copaiba oil in silicone gel or a placebo gel twice a day for 84 days. Assessments of the scars were performed at 0, 28, and 84 days following the onset of topical application using three methods: a clinical assessment using the Manchester Scar Scale, a photographic assessment to establish before and after treatment improvements, and at the end of the study period, patients completed a final satisfaction questionnaire. RESULTS: Of the original 42 patients, 32 completed the evaluation. There was a significant difference with respect to the overall score of the Manchester Scar Scale between the two groups from baseline to 84 days (P < 0.05). All patients with copaiba oil in silicone gel achieved improvement of their scars, based on overall score at 84 days. A visible scar reduction was observed with photographic assessment. Eighty-nine percent of subjects (n = 16) with copaiba oil in silicone gel rated as being satisfied or very satisfied after 84 days of treatment. CONCLUSION: Our findings support the hypothesis that copaiba oil in silicone-derivative gel was able obtain significant improvement in color, contour, distortion, and texture for different types of scar through the Manchester Scar Scale analysis. These findings contribute to reducing abnormal scar formation during the healing process.
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Introduction: Necrotizing enterocolitis (NEC) affects mainly preterm infants, has a multifactorial etiology and is associated with intestinal dysbiosis and disordered immunity. Use of probiotics for prophylaxis is beneficial with studies indicating reduction in NEC ≥ stage 2, late onset sepsis (LOS) and mortality. However, not all studies have shown a reduction, there are questions regarding which probiotic to use, whether infants <1,000 g benefit and the risk of probiotic sepsis. All neonatal intensive care units in New Zealand (NZ) use probiotics and contribute to an international database (Australian and New Zealand Neonatal Network or ANZNN). Objective: To use ANZNN data to investigate the experience of NZ neonatal units with probiotics for NEC prevention in a setting where the baseline incidence of severe NEC was low, to compare results of 2 commonly used probiotic regimes and report on the extremely low birth weight subgroup. Method: Outcomes before (Pre group 2007-2010) and after (Probiotic group 2013-2015) starting routine probiotics for preterm infants <1,500 g or <32 weeks were compared. Clinicians reviewed cases to ensure they met database criteria. Five units used Infloran (Bifidobacterium bifidum and Lactobacillus acidophilus) and 1 unit used Lactobacillus GG (LGG) and bovine lactoferrin (bLF). Results: Four thousand five hundred and twenty nine infants were included and Pre and Probiotic groups were well-balanced with regard to gestation, birth weight and gender. The incidence of NEC in the Probiotic group was 1.6 and 2.7% in the pre group (corrected OR 0.62 CI 0.41-0.94). There was one case of probiotic sepsis. There was no significant difference between the Infloran and LGG/bLF combinations in regard to observed NEC rates. Late onset sepsis rates were significantly lower in the Probiotic group (p < 0.01). Conclusions: Introduction of probiotics for preterm infants in NZ has been associated with significant reductions in NEC and late onset sepsis.
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Carbon nanotubes based carbon/carbon composites were prepared by infiltration of purified ACNTs film with pyrolytic carbon. Densification was performed by filling the space between the CNTs through by deposition of the pyrocarbon on the nanotubes surface. It comprised of (i) Synthesis and purification of aligned carbon nanotubes films by CCVD process and (ii) Infiltration of CNTs film by pyrocarbon using CVI method at 950 degrees C. SEM studies showed that the film was well infiltrated using methane. The density of film increased to 1.4 gm/cm3 from 0.4 gm/cm3 of as purified ACNTs film. The I(D)/I(G) ratio for CNTs film is 0.67 and 0.80 for the CVI deposited pyrocarbon. The lower I(D)/I(G) ratio from Raman microscopy shows fine graphitic nature of carbon nanotubes and nanocomposites films.
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In the present work, two-dimensional mixed convection Casson fluid flow past an infinite plate in a porous medium is performed under the effects of a uniform magnetic field. Characteristics of heat transfer and mass transfer are analyzed with non-linear thermal radiation, cross-diffusion, chemical reaction, heat generation and, heat absorption. The governing partial differential equations are remodeled into ordinary differential equations using similarity transformation. The homotopy analysis method is implemented to solve the governing dimensionless system of ordinary differential equations. The behavior of different physical parameters is shown graphically. The numerical values of Skin friction, Nusselt number, and Sherwood number are presented in a tabular form. Obtained outcomes are compared with earlier studies in the special case and strong agreement is noted. From graphical representation, it is concluded that velocity and temperature distribution increases with the mixed convection parameter and buoyancy force parameter. An increasing value of Casson fluid parameter, magnetic field parameter, chemical reaction parameter, and diffusion-thermo parameter tends to reduced velocity and temperature profiles. In most of the engineering and real-world problems, skin friction is not desirable, so it can be decreased by decreasing the values of magnetic field parameter, non-linear thermal radiation parameter, heat generation parameter, and temperature ratio parameter.
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PURPOSE: To assess right ventricular systolic time intervals, specifically, time to peak velocity (TPV) in the pulmonary artery as a marker of persistent pulmonary hypertension of the newborn (PPHTN). METHODS: This was a retrospective case-control study of 30 infants with pulmonary hypertension requiring intensive care management. Cardiac ultrasounds were re-analysed, comparing TPV measurements to a group of 31 controls who had cardiac ultrasounds performed for incidental murmurs with structurally normal hearts. RESULTS: Time to peak velocity was significantly shorter in the PPHTN group compared to controls, 47 vs. 95 ms, respectively. This was statistically significant with a P-value of <0.001. CONCLUSION: Time to peak velocity in the pulmonary artery is a useful marker of PPHTN in the first week of life. This measurement is especially useful if neither tricuspid regurgitation or a patent ductus are present for interrogation on ultrasound.
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After oral route of administration, drug absorption is unpredictable and is governed by various factors such as multi drug resistance-1 (MDR1) an efflux transporter and drug metabolizing enzymes (like CYP3A4, CYP3A37, CYP2D6) at intestine and liver. Naturally available phyto chemicals like piperine and quercetin as well as some floroquinolones are known to inhibit MDR1 and CYP3A37 activity and increases bioavailability of co-administered drugs. This study was carried out to investigate the effect of piperine and quercetin alone or in combination with marbofloxacin on CYP3A37 and MDR1 mRNA expression levels in liver and intestine of broiler chicken. After oral administration of piperine and quercetin for 3 consecutive days followed by with or without oral administration of marbofloxacin for 5â¯days, CYP3A37 and MDR1 mRNA expression levels were determined using quantitative real-time PCR. Total of 36 broiler chickens in seven individual groups were treated with different regimen and the mRNA expression levels at duodenum and liver were analyzed with apt statistical tools. After piperine and quercetin combined treatment with marbofloxacin, CYP3A37 mRNA expression levels were significantly down regulated by 20.57 (pâ¯=â¯.034) and 25.95 (pâ¯=â¯.003) folds; and MDR1 mRNA expression levels were also significantly down regulated by 11.33 (pâ¯=â¯.012) and 33.59 (pâ¯=â¯.006) folds in liver and duodenum, respectively. Down regulation of CYP3A37 and MDR1 mRNA in liver and duodenum indicate the combined pretreatment of piperine and quercetin may be useful for improving the pharmacokinetics of orally administered drugs which are substrates for CYP3A37 and MDR1.