1,720,953 research outputs found
Efficacy and safety of lentivirus gene therapy in the correction of sickle cell disease
Get PDF© 2025 The Author(s).Background and objective: Lentivirus gene therapy (LGT) is an emerging therapy for sickle cell disease (SCD), although its efficacy and safety are under evaluation in clinical trials. This review assessed the efficacy and safety of LGT in relation to hydroxyurea (HU). Materials and methods: A systematic review was conducted using The Preferred Reporting Items for Systematic Review and Meta-analysis protocol. Following a set of inclusion criteria, 10 studies were selected for quality assessment, extraction, and meta-analysis from 499 studies pooled from PubMed, ScienceDirect and Sematic Scholar. Data obtained were described and subjected to random effect meta-analysis using RevMan software. Results: There was a significant increase (p-value<0.00001) in haemoglobin (Hb) level after LGT and production of HbAT87Q and foetal haemoglobin (HbF). Clinical outcome decreased significantly, and no hospitalization was required following LGT. A significant age-related difference in the LGT outcome was observed. Mode 1 treatment had significantly higher (p=0.004) outcome compared to mode 2 treatment. There was a significant increase (p<0.00001) in treatment outcome in SCD patients treated with LGT compared to those treated with HU. Gastroenteritis and leucopenia were the most reported adverse effects. Conclusion: The review has demonstrated that LGT has a promising efficacy in the treatment of SCD although there are existing safety concerns.Unfunde
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Effect of Gravidity on Biochemical Parameters in Normotensive and Hypertensive 3rd Trimester Pregnant Women
No full textBackground: Pregnancy is a period in which a woman carries one or more foetus in her uterus. It is typically divided into three trimesters based on gestational age which is measured in weeks and months. Gravidity is referred to the number of times a woman has been pregnant. Pregnancy comes with several changes in metabolism, resulting to changes biochemical markers in pregnant women, some of which to certain extent may pose health risks in those with existing health conditions such as high blood pressure. The study of these changes becomes necessary to determine and arrest the risks should they exist during pregnancy.
Aim: The study was aimed at evaluating the effects of gravidity on biochemical markers in normotensive and hypertensive 3rd trimester pregnant women.
Materials and Methods: At Rivers State University Teaching Hospital, a cross-sectional study was conducted on 100 women. The consenting patients who met the inclusion criteria were randomly assigned to one of two groups: normotensive (50 normotensive pregnant women at their third trimester) or hypertensive (50 hypertensive pregnant women at their third trimester) (HPW2T). The subjects in each group were subsequently split into three categories depending on gravidity: primigravida (one pregnancy), multigravida (two or more), and grand multigravida (five or more).
For the assessment of TC, TG, HDL, and LDL, fasting blood samples were taken using the venepuncture technique.
AIP, CR-I, CR-II, AC, and APoB/APoA1) biochemical indices were computed quantitatively. At a p<0.05, the data were examined using ANOVA and the Tukey comparison test.
Result: There was no significant difference in the mean levels of the biochemical parameters among the gravidity groups in the normotensive group except for LDL and APoB levels that was significantly higher, p<0.05. The hypertensive group had no significant difference in the mean levels of all studied parameters among the gravidity group, p>0.05..
Conclusion: In this study conducted at Rivers State University Teaching Hospital, gravidity had no impact on most biochemical markers in normotensive and hypertensive pregnant women at their third trimester
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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