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result(s) for
"Mahmood, Faiza"
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Annual decline in forced expiratory volume and airway inflammatory cells and mediators in a general population-based sample
by
Vistnes, Maria
,
Kononova, Natalia
,
Mahmood, Faiza
in
Airway
,
Airway inflammation
,
Airway management
2019
Background
Few studies have examined the relationships between sputum inflammatory markers and subsequent annual decline in forced expiratory volume in 1 s (dFEV
1
). This study investigated whether indices of airway inflammation are predictors of dFEV
1
in a general population-based sample.
Methods
The study, conducted from 2003 to 2005, included 120 healthy Norwegian subjects aged 40 to 70 years old. At baseline, the participants completed a self-administered respiratory questionnaire and underwent a clinical examination that included spirometry, venous blood sampling, and induced sputum examination. From 2015 to 2016, 62 (52%) participants agreed to a follow-up examination that did not include induced sputum examination. Those with a FEV
1
/forced vital capacity (FVC) ratio < 0.70 underwent a bronchial reversibility test. The levels of cytokines, pro-inflammatory M1 macrophage phenotypes were measured in induced sputum using bead-based multiplex analysis. The associations between cytokine levels and dFEV
1
were then analysed.
Results
The mean dFEV
1
was 32.9 ml/year (standard deviation 26.3). We found no associations between dFEV
1
and the baseline indices of sputum inflammation. Seven participants had irreversible airflow limitation at follow-up. They had lower FEV1 and gas diffusion at baseline compared with the remaining subjects. Moreover, two of these individuals had a positive reversibility test and sputum eosinophilia at baseline.
Conclusions
In this cohort of presumably healthy subjects, we found no associations between sputum inflammatory cells or mediators and dFEV
1
during 10 years of follow-up.
Journal Article
Resistance of polio to its eradication in Pakistan
by
Mahmood, Faiza
,
Sher, Zunaira
,
Khan, Muhammad Kazim
in
Biomedical and Life Sciences
,
Biomedicine
,
Care and treatment
2011
Background
This study is based on EPI (Expanded Program on Immunization) immunization surveys and surveillance of polio, its challenges in immunization and the way forward to overcome these challenges.
Methods
Several Government documents, survey reports and unpublished program documents were studied and online search was made to find information on EPI Pakistan. SPSS 16 and Microsoft Excel 2007 were used for the statistical analysis.
Results
Immunization against polio is higher in urban areas as compared to rural areas. Marked variation in vaccination has been observed in different provinces of Pakistan in the last decade. Secondly 10-20% of the children who have received their first dose of trivalent polio vaccine were deprived of their 2
nd
and 3
rd
dose because of poor performance of EPI and Lack of information about immunization.
Conclusion
In spite of numerous successes, such as the addition of new vaccines and raising immunization to over 100% in some areas, EPI is still struggling to reach its polio eradication goals. Inadequate service delivery, lack of information about immunization and limited number of vaccinators were found to be the key reason for poor performance of immunization and for large number of cases reported each year due to the deficiency of second and third booster dose.
Journal Article
Antitumor, Anti-inflammatory and Antiallergic Effects of Agaricus blazei Mushroom Extract and the Related Medicinal Basidiomycetes Mushrooms, Hericium erinaceus and Grifola frondosa: A Review of Preclinical and Clinical Studies
by
Mahmood, Faiza
,
Johnson, Egil
,
Mirlashari, Mohammad Reza
in
Agaricus - chemistry
,
Agaricus subrufescens
,
angiogenesis
2020
Since the 1980s, medicinal effects have been documented in scientific studies with the related Basidiomycota mushrooms Agaricus blazei Murill (AbM), Hericium erinaceus (HE) and Grifola frondosa (GF) from Brazilian and Eastern traditional medicine. Special focus has been on their antitumor effects, but the mushrooms’ anti-inflammatory and antiallergic properties have also been investigated. The antitumor mechanisms were either direct tumor attack, e.g., apoptosis and metastatic suppression, or indirect defense, e.g., inhibited tumor neovascularization and T helper cell (Th) 1 immune response. The anti-inflammatory mechanisms were a reduction in proinflammatory cytokines, oxidative stress and changed gut microbiota, and the antiallergic mechanism was amelioration of a skewed Th1/Th2 balance. Since a predominant Th2 milieu is also found in cancer, which quite often is caused by a local chronic inflammation, the three conditions—tumor, inflammation and allergy—seem to be linked. Further mechanisms for HE were increased nerve and beneficial gut microbiota growth, and oxidative stress regulation. The medicinal mushrooms AbM, HE and GF appear to be safe, and can, in fact, increase longevity in animal models, possibly due to reduced tumorigenesis and oxidation. This article reviews preclinical and clinical findings with these mushrooms and the mechanisms behind them.
Journal Article
Amphiregulin-producing γδ T cells are vital for safeguarding oral barrier immune homeostasis
by
Mahmood, Faiza
,
McClure, Flora A.
,
Wemyss, Kelly
in
Amphiregulin
,
Amphiregulin - metabolism
,
Animal models
2018
γδ T cells are enriched at barrier sites such as the gut, skin, and lung, where their roles in maintaining barrier integrity are well established. However, how these cells contribute to homeostasis at the gingiva, a key oral barrier and site of the common chronic inflammatory disease periodontitis, has not been explored. Here we demonstrate that the gingiva is policed by γδ T cells with a T cell receptor (TCR) repertoire that diversifies during development. Gingival γδ T cells accumulated rapidly after birth in response to barrier damage, and strikingly, their absence resulted in enhanced pathology inmurine models of the oral inflammatory disease periodontitis. Alterations in bacterial communities could not account for the increased disease severity seen in γδ T cell-deficient mice. Instead, gingival γδ T cells produced the wound healing associated cytokine amphiregulin, administration of which rescued the elevated oral pathology of tcrδ
−/− mice. Collectively, our results identify γδ T cells as critical constituents of the immuno-surveillance network that safeguard gingival tissue homeostasis.
Journal Article
Agaricus blazei-Based Mushroom Extract Supplementation to Birch Allergic Blood Donors: A Randomized Clinical Trial
2019
Since Agaricus blazei Murill (AbM) extract reduced specific IgE and ameliorated a skewed Th1/Th2 balance in a mouse allergy model, it was tested in blood donors with self-reported, IgE-positive, birch pollen allergy and/or asthma. Sixty recruited donors were randomized in a placebo-controlled, double-blinded study with pre-seasonal, 7-week, oral supplementation with the AbM-based extract AndosanTM. Before and after the pollen season, questionnaires were answered for allergic rhino-conjunctivitis, asthma, and medication; serum IgE was measured, and Bet v 1-induced basophil activation was determined by CD63 expression. The reported general allergy and asthma symptoms and medication were significantly reduced in the AbM compared to the placebo group during pollen season. During the season, there was significant reduction in specific IgE anti-Bet v 1 and anti-t3 (birch pollen extract) levels in the AbM compared with the placebo group. While the maximal allergen concentrations needed for eliciting basophil activation before the season, changed significantly in the placebo group to lower concentrations (i.e., enhanced sensitization) after the season, these concentrations remained similar in the AndosanTM AbM extract group. Hence, the prophylactic effect of oral supplementation before the season with the AbM-based AndosanTM extract on aeroallergen-induced allergy was associated with reduced specific IgE levels during the season and basophils becoming less sensitive to allergen activation.
Journal Article
Knowledge, Attitude and Practice in Electronic Learning Among Students in Medical Faculties – Babylon Province
by
Mushtaq Talib Mahdi
,
Nassrin Malik Aubead
,
Mohammed Rasool Jawad
in
Attitudes
,
Colleges & universities
,
Distance learning
2022
E-learning is a contemporary and elastic method of education that is being utilized as a substitution to traditional education methods. Despite its widespread usage in Iraq's medical faculty system, the students' utilization of experiences for online learning is unclear.This study aims to explore medical students’ knowledge, attitude, and practice (KAP) regarding online learning. It was a cross-sectional online questionnaire was distributed through email as Google forms to assess KAP regarding online teaching and learning among Hammurabi College of Medicine and College of Nursing Students of Babylon university in Iraq. The survey requested socio-demographic information, as well as information related to electronic devices and e-learning knowledge, attitudes and practices.A total of 234 valid questionnaire were retrieved, 60.3% of respondents were female and 39.7% were male. Most respondents 29.5% disagree that e-learning could be implanted in Iraq, also 43.6% of the respondents disagreed that e-learning could be used for clinical aspects, as compared with 8.2% who agreed with this statement and 15.8% who were neutral, while 28.2% from respondents were neutral response on the veracity of certificate attained through e-learning must be acknowledged. Finally, 43.2% were good proficiency in using electronic devices.Medical students demonstrated adequate levels of knowledge and practice related to e-learning, but there are some unfavorable attitudes surrounded e-learning that continuous feedback from students will require to make e-learning efficient. To increase the viability of e-learning for medical students in Iraq, information and communication must be improved
Journal Article
In vitro preconditioning of insulin-producing cells with growth factors improves their survival and ability to release insulin
by
Ali, Muhammad
,
Mehmood, Azra
,
Mahmood, Faiza
in
Apoptosis
,
Cell proliferation
,
Diabetes mellitus
2018
Glucose-induced oxidative stress in the diabetic pancreas directly affects viability and the consequent therapeutic outcome of transplanted stem cells. Pretreatment of stem cells with growth factors induces tolerance in them against various stresses (hypoxia, thermal or hyperglycaemic). This study investigated the effect of pretreatment on insulin-producing cells (IPCs) differentiated from adipose-derived mesenchymal stem cells (ADMSCs), with a combination of stromal cell-derived factor 1 alpha (SDF1α) and basic fibroblast growth factor (bFGF) against hyperglycaemic stress (17 or 33 mM glucose). The results showed that IPCs pretreated with a combination of SDF1α and bFGF exhibited maximally alleviated apoptosis, senescence and cell damage with a concomitantly increased release of insulin, enhanced cell proliferation and greater up-regulation of Insulin 1, Insulin 2, Ngn3, Pdx1 and Nkx6.2 when stressed with 33 mM glucose. These findings may offer an improved therapeutic outcome for the treatment of diabetes.
Journal Article
Relationship of Baseline Hemoglobin Level with Serum Ferritin, Postphlebotomy Hemoglobin Changes, and Phlebotomy Requirements among HFE C282Y Homozygotes
2015
Objectives. We aimed to examine whether baseline hemoglobin levels in C282Y-homozygous patients are related to the degree of serum ferritin (SF) elevation and whether patients with different baseline hemoglobin have different phlebotomy requirements. Methods. A total of 196 patients (124 males and 72 females) who had undergone therapeutic phlebotomy and had SF and both pre- and posttreatment hemoglobin values were included in the study. Results. Bivariate correlation analysis suggested that baseline SF explains approximately 6 to 7% of the variation in baseline hemoglobin. The results also showed that males who had higher (≥150 g/L) baseline hemoglobin levels had a significantly greater reduction in their posttreatment hemoglobin despite requiring fewer phlebotomies to achieve iron depletion than those who had lower (<150 g/L) baseline hemoglobin, regardless of whether baseline SF was below or above 1000 µg/L. There were no significant differences between hemoglobin subgroups regarding baseline and treatment characteristics, except for transferrin saturation between male subgroups with SF above 1000 µg/L. Similar differences were observed when females with higher (≥138 g/L) baseline hemoglobin were compared with those with lower (<138 g/L) baseline hemoglobin. Conclusion. Dividing C282Y-homozygous patients into just two subgroups according to the degree of baseline SF elevation may obscure important subgroup variations.
Journal Article
Assessing the Effects of the Mating Sex Ratios on Reproductive Performance of Indian Peafowl, Pavo cristatus
2013
This study was conducted to evaluate the role of peacock-peahen ratios on egg production, fertility and hatchability in Indian Peafowl (Pavo cristatus) in a Wildlife Park to explore most productive mating sex ratio for a period of 16 weeks. A total of 42 birds (12 and 30) was selected for the study and kept in 12 cages. The sex ratios maintained were 1: 1 (Group A), 1: 2 (Group B), 1: 3 (Group C) and 1: 4 (Group D). Each group had three replicates. The birds were randomly released into twelve cages with each cage contained one sex ratio. Before data collection, the birds were given an adaptation period of one week. Peacock-peahen ratio (1: 3) exhibited significant effect (P less than .0.05) on mean egg production (1.78 plus or minus 0.14), egg weight (98.21g plus or minus 7.02), egg fertility (81.25% plus or minus 6.28), hatchability (61.95% plus or minus 1.00) and mounting numbers (2.66+0.09). Whereas, the mean display duration, display number, mounting duration and total time taken for mating were not affected by any peacock-peahen mating ratio. Maximum number of eggs were produced having mating sex ratio 1:3 in terms of egg production, egg weight, egg fertility (%), hatchability (%) and number of mating.
Journal Article
Antecedents and Consequences of Misinformation Sharing Behavior among Adults on Social Media during COVID-19
2023
Misinformation has been existed for centuries, though emerge as a severe concern in the age of social media, and particularly during COVID-19 global pandemic. As the pandemic approached, a massive influx of mixed quality data appeared on social media, which had adverse effects on society. This study highlights the possible factors contributing to the sharing and spreading misinformation through social media during the crisis. Preferred Reporting Items and Meta-Analysis guidelines were used for systematic review. Anxiety or risk perception associated with COVID-19 was one of the significant motivators for misinformation sharing, followed by entertainment, information seeking, sociability, social tie strength, self-promotion, trust in science, self-efficacy, and altruism. WhatsApp and Facebook were the most used platforms for spreading rumors and misinformation. The results indicated five significant factors associated with COVID-19 misinformation sharing on social media, including socio-demographic characteristics, financial considerations, political affiliation or interest, conspiracy ideation, and religious factors. Misinformation sharing could have profound consequences for individual and society and impeding the efforts of government and health institutions to manage the crisis. This SLR focuses solely on quantitative studies, hence, studies are overlooked from a qualitative standpoint. Furthermore, this study only looked at the predictors of misinformation sharing behavior during COVID-19. It did not look into the factors that could curb the sharing of misinformation on social media platforms as a whole. The study’s findings will help the public, in general, to be cautious about sharing misinformation, and the health care workers, and institutions, in particular, for devising strategies and measures to reduce the flow of misinformation by releasing credible information through concerned official social media accounts. The findings will be valuable for health professionals and government agencies to devise strategies for handling misinformation during public health emergencies.
Journal Article