71 research outputs found
A Machine Learning Model to Identify Fake Data from Social Media using Sentiment Features
The exponential growth in the use of social media is leading to sharing of information among each other through which the spreading of fake news is common these days. online social networking is the main source for fake news. The most popular social media are Twitter and Facebook, through which the majority of the news reaches the public. This study is aim to try different classification algorithms in comparing with Dataset. For our experiment purpose the dataset used is Real or Fake News dataset which is extracted from Kaggle, which comprises 30Mb of twitter data. The two major classification algorithms used are Naive Bayes and Logistic Regression classification algorithm. The algorithms result in Accuracy score 82.48%, AUC 1.0 and kappa score 0.64 and Accuracy score 91.16%, AUC 0.91 and kappa score 0.82 respectively for the given dataset. The two different classification algorithms are successfully checked with the given dataset. The sentimental analysis is the other way of identification of fake data problem which can be implemented to know the positive and negative sentiment in the given twits. VADER feature is the one of the feature extraction which can be tried with the dataset to find out fake and real data
Cellular immune response to Mycobacterium tuberculosis-speciWc antigen culture Wltrate protein-10 in south India
The Mycobacterium tuberculosis (M. tuberculosis)-
speciWc culture Wltrate protein-10 (CFP-10) is highly
recognized by M. tuberculosis infected subjects. In the
present study, the proliferative response and IFN-� secretion
was found for C-terminal peptides of the protein
(Cfp651–70, Cfp761–80, Cfp871–90, and Cfp981–100). The alleles
HLA DRB1 *04 and HLA DRB1 *10 recognized the
C-terminal peptides Cfp7, Cfp8, and Cfp9 in HHC. Cfp6
was predominantly recognized by the alleles HLA DRB1
*03 and HLA DRB1 *15 by PTB. The minimal nonameric
epitopes from the C-terminal region were CFP-1056–64 and
CFP-1076–84. These two peptides deserve attention for
inclusion in a vaccine against tuberculosis in this region
Immune response to Mycobacterium tuberculosis specific antigen ESAT-6 among south Indians
The 6-kDa early secreted antigenic target (ESAT-6) is a T-cell antigen recognized by individuals infected
with Mycobacterium tuberculosis. The aim of the study was to identify ‘‘protective epitopes’’ of ESAT-6
protein in the south Indian population. Proliferative and Interferon gamma (IFN-g) responses to ESAT-6
peptides were studied by flow cytometry and Enzyme linked immunosorbent assay (ELISA). Healthy
household contacts (HHC) recognized Esp1 (10/17) and Esp6 (9/17) peptides. Among pulmonary tuberculosis
patients (PTB), Esp1 (3/11) and Esp6 (5/11) were recognized. Maximal response (7/10) was found
for Esp1 and Esp8 in treated patients (TR). Median values for the responding subjects gave the following
results: Esp1 (76 pg/ml), Esp6 (64 pg/ml), induced IFN-g production in HHC; PTB gave low IFN-g
responses for the peptides. TR responded to the peptides Esp1 (141 pg/ml), Esp8 (102 pg/ml). The
proliferation of CD4 cells was similar in both PTB and TR for all peptides; but HHC showed an increase for
Esp1 (p < 0.05) and Esp6 (p < 0.01). Esp1 (amino acids aa 1–20) and Esp6 (aa 51–70) were the immunogenic
peptides recognized by the alleles HLA DRB1*04 and HLA DRB1*10 among HHC. But the
association of the alleles with ESAT-6 peptide presentation needs to be confirmed in a large cohort of
subjects. We speculate that ESAT-6 can be used along with other immune-eliciting proteins for vaccine
design strategies in south Indian population
Expert United Kingdom consensus on the preservation of joint health in people with moderate and severe haemophilia A: A modified Delphi panel
Aim: For people with haemophilia A (PwHA), bleeding in the joints leads to joint damage and haemophilia-related arthropathy, impacting range of motion and life expectancy. Existing guidelines for managing haemophilia A support healthcare professionals (HCPs) and PwHA in their efforts to preserve joint health. However, such guidance should be reviewed, considering emerging evidence and consensus as presented in this manuscript.
Methods: Fifteen HCPs experienced in the management of PwHA in the UK participated in a three-round Delphi panel. Consensus was defined at ≥70% of panellists agreeing or disagreeing for Likert-scale questions, and ≥70% selecting the same option for multiple- or single-choice questions. Questions not reaching consensus were revised for the next round.
Results: 26.8% (11/41), 44.8% (13/29) and 93.3% (14/15) of statements reached consensus in Rounds 1, 2 and 3, respectively. HCPs agreed that prophylaxis should be offered to patients with a baseline factor VIII (FVIII) level of ≤5 IU/dL and that, where there is no treatment burden, the aim of prophylaxis should be to achieve a trough FVIII level ≥15 IU/dL and maintain a longer period with FVIII levels of ≥20-30 IU/dL to provide better bleed protection. The aspirational goal for PwHA is to prevent all joint bleeds, which may be achieved by maintaining normalised (50-150 IU/dL) FVIII levels.
Conclusion: The panel of experts were largely aligned on approaches to preserving joint health in PwHA, and this consensus may help guide HCPs
Expert United Kingdom consensus on the preservation of joint health in people with moderate and severe haemophilia A: A modified Delphi panel
\ua9 2024 The Authors. Haemophilia published by John Wiley & Sons Ltd.Aim: For people with haemophilia A (PwHA), bleeding in the joints leads to joint damage and haemophilia-related arthropathy, impacting range of motion and life expectancy. Existing guidelines for managing haemophilia A support healthcare professionals (HCPs) and PwHA in their efforts to preserve joint health. However, such guidance should be reviewed, considering emerging evidence and consensus as presented in this manuscript. Methods: Fifteen HCPs experienced in the management of PwHA in the UK participated in a three-round Delphi panel. Consensus was defined at ≥70% of panellists agreeing or disagreeing for Likert-scale questions, and ≥70% selecting the same option for multiple- or single-choice questions. Questions not reaching consensus were revised for the next round. Results: 26.8% (11/41), 44.8% (13/29) and 93.3% (14/15) of statements reached consensus in Rounds 1, 2 and 3, respectively. HCPs agreed that prophylaxis should be offered to patients with a baseline factor VIII (FVIII) level of ≤5 IU/dL and that, where there is no treatment burden, the aim of prophylaxis should be to achieve a trough FVIII level ≥15 IU/dL and maintain a longer period with FVIII levels of ≥20–30 IU/dL to provide better bleed protection. The aspirational goal for PwHA is to prevent all joint bleeds, which may be achieved by maintaining normalised (50–150 IU/dL) FVIII levels. Conclusion: The panel of experts were largely aligned on approaches to preserving joint health in PwHA, and this consensus may help guide HCPs
Humoral immune response to filarial antigens in chyluria
Humoral immune parameters like total immunoglobulins and specific antibody
levels in serum were studied in filarial chyluria patients. Mean serum IgG was significantly
reduced in this group compared to normal controls, while IgA and IgM levels remained
comparable to controls. Anti-filarial antibody titre as measured by enzyme-linked immunosorbent
assay also was significantly reduced. However, the total and specific IgE
antibody titre was similar to that of controls. Specific IgE contents of the patients’ sera could be
related to their microfilaraemic status
The immunogenicity of ReFacto AF (moroctocog alfa AF-CC) in previously untreated patients with haemophilia A in the United Kingdom
Introduction
Factor VIII inhibitor development is currently the most serious complication of the treatment of haemophilia A. Differences in manufacturing and the molecular structure of brands of recombinant factor VIII have led to speculation that concentrates may differ in immunogenicity. This has led to a regulatory focus on the immunogenicity of factor VIII concentrates both before and after licensure.
Aim
To investigate the immunogenicity of ReFacto AF post licensure in a real‐world setting in previously untreated patients (PUPs) treated exclusively with this product until at least 50 exposure days (EDs).
Methods
The United Kingdom Haemophilia Centre Doctors’ Organisation (UKHCDO) National Haemophilia Database (NHD) identified a consecutive cohort of patients with severe haemophilia A (<0.01 IU/L) whose first treatment was with ReFacto AF, monitored time to inhibitor development and described associated risk factors.
Results
One hundred and three boys reached 50 EDs within the study period, of whom 35 developed an inhibitor (P(t ≤ 50) = 0.33, [95% CI: 0.25‐0.43]), of which 15 (P(t ≤ 50) = 0.16, [95% CI: 0.10‐0.25]) were high titre. Inhibitors arose after a median (interquartile range) 11 (7‐16) EDs. Inhibitors were significantly associated with high‐risk mutations and non‐significantly associated with non‐white ethnicity. Inhibitors were negatively associated with a family history of haemophilia A. High‐titre inhibitors were significantly associated with a family history of inhibitors.
Conclusion
Inhibitor incidence in a single country population of ReFacto AF PUPs was similar to that previously described. Low‐ and high‐titre inhibitors were detected after a similar number of EDs, contrasting with previous data, probably reflecting standardized inhibitor monitoring within the United Kingdom
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An open-label, multi-centre, post-marketing study to assess the efficacy and safety of a plasma-derived VWF/FVIII concentrate in patients with von Willebrand disease.
IP-10 response to RD1 antigens might be a useful biomarker for monitoring tuberculosis therapy
Background
There is an urgent need of prognosis markers for tuberculosis (TB) to improve treatment strategies. The results of several studies show that the Interferon (IFN)-γ-specific response to the TB antigens of the QuantiFERON TB Gold (QFT-IT antigens) decreases after successful TB therapy. The objective of this study was to evaluate whether there are factors other than IFN-γ [such as IFN-γ inducible protein (IP)-10 which has also been associated with TB] in response to QFT-IT antigens that can be used as biomarkers for monitoring TB treatment.
Methods
In this exploratory study we assessed the changes in IP-10 secretion in response to QFT-IT antigens and RD1 peptides selected by computational analysis in 17 patients with active TB at the time of diagnosis and after 6 months of treatment. The IFN-γ response to QFT-IT antigens and RD1 selected peptides was evaluated as a control. A non-parametric Wilcoxon signed-rank test for paired comparisons was used to compare the continuous variables at the time of diagnosis and at therapy completion. A Chi-square test was used to compare proportions.
Results
We did not observe significant IP-10 changes in whole blood from either NIL or QFT-IT antigen tubes, after 1-day stimulation, between baseline and therapy completion (p = 0.08 and p = 0.7 respectively). Conversely, the level of IP-10 release to RD1 selected peptides was significantly different (p = 0.006). Similar results were obtained when we detected the IFN-γ in response to the QFT-IT antigens (p = 0.06) and RD1 selected peptides (p = 0.0003). The proportion of the IP-10 responders to the QFT-IT antigens did not significantly change between baseline and therapy completion (p = 0.6), whereas it significantly changed in response to RD1 selected peptides (p = 0.002). The proportion of IFN-γ responders between baseline and therapy completion was not significant for QFT-IT antigens (p = 0.2), whereas it was significant for the RD1 selected peptides (p = 0.002), confirming previous observations.
Conclusions
Our preliminary study provides an interesting hypothesis: IP-10 response to RD1 selected peptides (similar to IFN-γ) might be a useful biomarker for monitoring therapy efficacy in patients with active TB. However, further studies in larger cohorts are needed to confirm the consistency of these study results
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