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Omega 3 polyunsaturated fatty acids are dietary factors with several beneficial cardiovascular effects. This study aimed to assess the possible protective effect of omega 3 fatty acids on early doxorubicin-induced cardiac toxicity in children with acute lymphoblastic leukemia (ALL).
Sixty children of newly diagnosed ALL were randomized into two groups group I (n=30) who received omega 3 fatty acids 1000mg/day for 6months in addition to their usual protocol of chemotherapy including doxorubicin; and group II (n=30) who received their usual doxorubicin protocol during the period from February 2020 till August 2021. Echocardiographic examinations were performed before and after the treatment. Glutathione, malondialdehyde (MDA), superoxide dismutase (SOD), troponin I, creatine kinase MB (CK-MB), and N-terminal pro-brain natriuretic peptide (NT-proBNP) were measured also before and after omega 3 treatment.
After 6months of omega 3 administration, group I had a significantly lower MDA level and a significantly higher glutathione and SOD levels than group II. Similarly, the levels of troponin I, CK-MB, and NT-proBNP were significantly high in group II, whereas they were unchanged in group I after treatment. Similarly, systolic function (presented with peak mitral annular systolic velocity and two-dimensional global longitudinal strain) of the heart was preserved in omega 3-treated patients, unlike the control group that showed significant impairment of left ventricular function after 6months.
Omega 3 fatty acids may decrease early cardiac injury and doxorubicin-induced cardiotoxicity in children with ALL.
Omega 3 fatty acids may decrease early cardiac injury and doxorubicin-induced cardiotoxicity in children with ALL.Fc-gamma receptor (FcγR) activation by soluble IgG immune complexes (sICs) represents a major mechanism of inflammation in certain autoimmune diseases such as systemic lupus erythematosus (SLE). A robust and scalable test system allowing for the detection and quantification of sIC bioactivity is missing. We developed a comprehensive reporter cell panel detecting activation of FcγRs. The reporter cell lines were integrated into an assay that enables the quantification of sIC reactivity via ELISA or a faster detection using flow cytometry. This identified FcγRIIA(H) and FcγRIIIA as the most sIC-sensitive FcγRs in our test system. Reaching a detection limit in the very low nanomolar range, the assay proved also to be sensitive to sIC stoichiometry and size reproducing for the first time a complete Heidelberger-Kendall curve in terms of immune receptor activation. Analyzing sera from SLE patients and mouse models of lupus and arthritis proved that sIC-dependent FcγR activation has predictive capabilities regarding severity of SLE disease. The assay provides a sensitive and scalable tool to evaluate the size, amount, and bioactivity of sICs in all settings.This systematic review and meta-analysis aimed to assess the robustness of designs and tools used in nutrition social behaviour change communication (NSBCC) interventions and establish their effectiveness. EBSCOhost as an umbrella database including Medline (Ovid) and CINAHL, EMBASE, and ProQUEST databases were searched for peer-reviewed articles from January 1960 to October 2018. Additional sources were searched to identify all relevant studies including grey literature. Studies' biases were assessed according to Cochrane handbook. Pooled estimate of effectiveness of interventions on infant and young child feeding (IYCF) practices and child nutritional status with 95% confidence intervals were measured using random-effects models. Eighty studies were included in this review Fifty-one (64%) were cluster randomised controlled trials (RCTs), 13 (16%) were RCTs and 16 (20%) quasi-experimental. Of the included studies, 22 (27%) measured early initiation of breastfeeding, 38 (47%) measured exclusive breastfeeding, 29 (36%) measured minimum dietary diversity, 21 (26%) measured minimum meal frequency, 26 (32%) measured height for age z-scores (HAZ), 23 (29%) measured weight for height z-scores (WHZ), 27 (34%) measured weight for age z-scores (WAZ), 20 (25%) measured stunting, 14 (17%) measured wasting, and 11 (14%) measured underweight. The overall intervention's effect was significant for exclusive breastfeeding (EBF) (odds ratio = 1.73; 95% confidence interval [CI] 1.35-2.11, p less then 0.001), HAZ (standardized mean differences [SMD] = 0.19; 95% CI 0.17-0.21; p less then 0.001), WHZ (SMD = 0.02; 95% CI 0.004-0.04; p less then 0.001), and WAZ (SMD = 0.04; 95% CI 0.02-0.06; p less then 0.001). Evidence shows the effectiveness of NSBCC in improving EBF and child anthropometric outcomes. Further research should test the impact on child nutritional status with clearly specified and detailed NSBCC interventions.MAP(Aib)-cRGD, which is a conjugate of an α-aminoisobutyric acid (Aib)-containing amphipathic helical peptide [MAP(Aib)] with a αv β3 integrin binding ligand, cRGD, at the C-terminus of the helical peptide, has been developed for siRNA delivery into cells. In this work, we synthesized three peptides containing 19 (PI), 18 (PII), and 17 (PIII) amino acid residues in the helical peptide, which lack Aib, Leu-Aib, and Lys-Leu-Aib residues present in the C-terminus of the helical peptide of the parent MAP(Aib)-cRGD, respectively. MAP(Aib)-cRGD showed the siRNA delivery into cells and the RNAi effect both in the presence and in the absence of serum in reaction media. In contrast, PI delivered siRNA into cells, and this was followed by the RNAi effect in only serum-free reaction media. On the other hand, siRNA delivery was abolished by the further reduction of the number of residues (PII and PIII) in the C-terminus. Our data indicate that the Aib-containing helical part requires 20 residues in the conjugation of the helical peptide with cRGD for the construction of carrier for siRNA delivery into cells.
Pediatric brain tumor survivors (PBTS) experience psychosocial difficulties and poor quality of life (QOL). Family functioning may be adversely impacted by the stress of diagnosis and associated symptoms, which may, in turn, affect PBTS outcomes. The objective of this study was to complete a systematic review of family functioning and psychosocial outcomes in PBTS.
We conducted systematic searches of PubMed and PsychInfo. Full-text articles (n=324) were screened and 14 were included. A risk-of-bias assessment was conducted to evaluate the quality of study conclusions.
Studies examined associations of family functioning with adaptive, social, emotional, and behavioral outcomes, and QOL. More adaptive family functioning (cohesiveness, effective communication, lower conflict) was associated with better PBTS outcomes. Studies were limited by heterogeneous/small samples and cross-sectional designs.
Results provide preliminary support for the relationship between family functioning and psychosocial outcomes. Common outcome measures and prospective research designs can further advance understanding.
Results provide preliminary support for the relationship between family functioning and psychosocial outcomes. Common outcome measures and prospective research designs can further advance understanding.Owing to the increasing power density of miniaturized and high-frequency electronic devices, flexible thermal interface materials (TIMs) with the electromagnetic interference (EMI) shielding property are in urgent demand to maintain the system performance and reliability. Recently, carbon-based TIMs receive considerable attention due to the ultrahigh intrinsic thermal conductivity (TC). However, the large-scale production of such TIMs is restricted by some technical difficulties, such as production-induced defects of graphite sheets, poor microstructure architecture within the matrix, and nonnegligible interfacial thermal resistance result from the strong phono scattering. In this work, inspired by the structure and production process of millefeuille cakes, a unique double self-assembly strategy for fabricating ultrahigh thermal conductive TIMs with superior EMI shielding performance is demonstrated. The percolating and oriented multilayered microstructure enables the TIM to exhibit an ultrahigh in-plane TC of 233.67 W m-1 K-1 together with an outstanding EMI shielding effectiveness of 79.0 dB (at 12.4 GHz). In the TIM evaluation system, a nearly 45 °C decrease is obtained by this TIM when compared to the commercial material. The obtained TIM achieves the desired balance between thermal conduction and EMI shielding performance, indicating broad prospects in the fields of military applications and next-generation thermal management systems.
Planning and coordination of the delivery of radiation therapy (RT) can be challenging in resource-limited settings. In this retrospective study, we describe the profile of children undergoing radiation and analyze deviation from some accepted norms.
Data on all children (<18years of age) with cancer who completed RT from January 2009 to December 2019 were retrieved. Diagnostic groups with more than five patients were included in the analysis for deviations in RT (time to start [TTS]; total dose delivered [TDD] in gray; and time to complete [TTC]). We investigated reasons for deviation.
Two hundred seven children received RT as front-line treatment (68% Indian, 59% male). Most common diagnoses were brain tumors (44%), lymphomas (13%), leukemias, and soft tissue sarcomas (10% each). TTS deviation was seen in 23.6%, TTD in 6.0%, and TTC in 24.7%, while 43.4% had at least one deviation in any of these three parameters. Deviation in TTS varied significantly by location of preceding treatment and by cancer (greatest deviation in sarcomas), with issues around access to health care being the most common reason. Deviation in TTC varied significantly by cancer (greatest deviation in sarcomas and medulloblastoma), with myelotoxicity being the most common reason.
Our study adds to the limited literature on RT quality for children with cancer in resource-limited settings. Certain cancers (sarcomas and medulloblastomas) and patient groups (preceding treatment outside our institute) had the maximum deviation. Barriers to accessing care and myelotoxicity were the two main reasons for this deviation.
Our study adds to the limited literature on RT quality for children with cancer in resource-limited settings. Certain cancers (sarcomas and medulloblastomas) and patient groups (preceding treatment outside our institute) had the maximum deviation. Barriers to accessing care and myelotoxicity were the two main reasons for this deviation.
Medical linear accelerators (linacs) can fail in a multitude of different manners due to complex structures. An unclear identification of failure modes occurring constantly is a major obstacle to maintenance arrangements, thereby may increasing downtime. This study aims to use natural language processing techniques to deal with the unformatted maintenance logs to identify the linac failure modes and trends over time.
The data used in our study are unformatted narrative maintenance logs recording linac conditions and repair actions. click here The latent Dirichlet allocation-based topic modeling method was used to identify topics and keywords regarding the failure modes. The temporal analysis method was applied to examine the variation of failure modes over 20 years.
Based on the output of the topic modeling, 28 topics and keywords with frequency ranking were generated automatically. The latent failure modes in topics were identified and classified into six main subsystems of linacs. Furthermore, by using the temporal analysis method, the trends of all failure modes over 20 years were illustrated.