24,988 results match your criteria: "Qatar; University of Leicester[Affiliation]"

A Convenient One-Pot Synthesis of Novel Benzimidazole-Thiazinone Derivatives and Their Antimicrobial Activity.

Antibiotics (Basel)

December 2024

Medicinal Chemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India.

The increasing prevalence of antimicrobial resistant highlights the urgent need for the new therapeutic agents. This study aimed to design and synthesize fused tricyclic benzimidazole-thiazinone derivatives (-) through a convenient method and evaluate their antimicrobial activity against various microorganisms. A series of fused tricyclic benzimidazole-thiazinone derivatives was rationally designed and synthesized in one pot by the reaction between trans substituted acrylic acids and 1-benzo[d]imidazole-2-thiol using coupling reagent TBTU (2-(1-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate).

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Atopic dermatitis (AD) is a chronic inflammatory skin disease with rising prevalence, marked by eczematous lesions, itching, and a weakened skin barrier often tied to filaggrin gene mutations. This breakdown allows allergen and microbe entry, with thymic stromal lymphopoietin (TSLP) playing a crucial role by activating immune pathways that amplify the allergic response. TSLP's central role in AD pathogenesis makes it a promising therapeutic target.

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Disrupted Lipid Metabolism, Cytokine Signaling, and Dormancy: Hallmarks of Doxorubicin-Resistant Triple-Negative Breast Cancer Models.

Cancers (Basel)

December 2024

Translational Oncology Research Center (TORC), Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha P.O. Box 34110, Qatar.

Background: Chemoresistance in triple-negative breast cancer (TNBC) presents a significant clinical hurdle, limiting the efficacy of treatments like doxorubicin. This study aimed to explore the molecular changes associated with doxorubicin resistance and identify potential therapeutic targets to overcome this resistance, thereby improving treatment outcomes for TNBC patients.

Methods: Doxorubicin-resistant (DoxR) TNBC models (MDA-MB-231 and BT-549) were generated by exposing cells to increasing concentrations of doxorubicin.

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Article Synopsis
  • Small cell lung cancer (SCLC) is a highly aggressive cancer with poor survival rates, and current diagnostic methods are invasive and limited.
  • This study introduces a new machine learning technique that uses metabolomics data to distinguish between SCLC, non-small cell lung cancer (NSCLC), and healthy individuals, achieving high accuracy in classification.
  • Key metabolites were identified as important predictors, and the stacking ensemble model effectively combines different classifiers, providing a promising non-invasive alternative for early lung cancer detection.
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Background: The relationship between obesity, physical activity, and cancer has not been well studied across different countries. The age-standardized rate of cancer in the UK is double-triple that in the Gulf Cooperation Council Countries (GCCCs). Here, we study the association between obesity, physical activity, and cancer incidence with the aim to elucidate cancer epidemiology and risk factors in two geographically, ethnically, and climatically different parts of the world.

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Processed and ultra-processed foods are associated with depression and anxiety symptoms in a cross-sectional sample of urban Lebanese adults.

Nutr Res

January 2025

Faculty of Medicine, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Faculty of Medicine, Clinical Research Institute, American University of Beirut, Beirut, Lebanon.

While low dietary quality has been linked to poor mental health, evidence on more direct relations of specific dietary quality indicators, namely degrees of food processing, with mental health disorders remains limited. This study aims to investigate the association between food groups' intakes, defined based on their degree of food processing, with depression and anxiety symptoms in a sample of Lebanese adults. We hypothesized that higher intakes of ultra-processed foods (UPF) will be related to higher risk of depression and anxiety while an opposite association will be observed for unprocessed or minimally processed foods (MPF).

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No evidence that breast cancer occurs at higher rates among young Arab women.

East Mediterr Health J

December 2024

Department of Radiology, King Abdulaziz University, Jeddah, Saudi Arabia.

Article Synopsis
  • The study investigates breast cancer incidence rates among Arab women compared to women from high- and middle-income countries, focusing on age-specific data.
  • Findings reveal that young Arab women have breast cancer rates that are comparable to or lower than those in selected high- and middle-income countries, contradicting the perception of higher risk in this demographic.
  • The results suggest that the higher number of cases in Arab countries may be attributed to a younger population structure, emphasizing the need for updated breast cancer screening policies in the region.
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Effects of double data extraction on errors in evidence synthesis: a crossover, multicenter, investigator-blinded, randomized controlled trial.

Postgrad Med J

January 2025

Proof of Concept Center, Eastern Hepatobiliary Surgery Hospital, Third Affiliated Hospital, Second Military Medical University, Naval Medical University, No. 255, Yangpu District, Shanghai, 200433, China.

Objectives: The objective was to investigate the role of double extraction in reducing data errors in evidence synthesis for pharmaceutical and non-pharmaceutical interventions.

Design: Crossover randomized controlled trial (RCT).

Setting: University and hospital with teaching programs in evidence-based medicine.

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The early symptoms of hepatocellular carcinoma patients are often subtle and easily overlooked. By the time patients exhibit noticeable symptoms, the disease has typically progressed to middle or late stages, missing optimal treatment opportunities. Therefore, discovering biomarkers is essential for elucidating their functions for the early diagnosis and prevention.

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Left ventricular assist devices (LVADs) have been used as a bridge to transplantation in patients with advanced heart failure. In this case, LVAD therapy was used as a destination therapy for 16 years, representing the longest documented and continuously ongoing support with the original implanted device.

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Artificial intelligence in respiratory care.

Front Digit Health

December 2024

Faculty of Engineering and Computing, Liwa College, Abu Dhabi, United Arab Emirates.

The evolution of artificial intelligence (AI) has revolutionised numerous aspects of our daily lives, with profound implications across various sectors, including healthcare. Although the concept of AI in healthcare was introduced in the early 1970s, the integration of this technology in healthcare is still in the evolution phase. Despite barriers, the current decade is witnessing an increased utility of AI into diverse specialities of the medical field to enhance precision medicine, predict diagnosis, therapeutic results, and prognosis; this includes respiratory medicine, critical care, and in their allied specialties.

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On 25-26 April 2024, the 5th PPRI (Pharmaceutical Pricing and Reimbursement Information) Conference on ensuring equitable access to affordable medicines took place in Vienna (Austria). Twenty-four accepted contributions were presented either as oral presentations or posters, adding to invited keynote lectures, stakeholder debates and workshops. The global multi-stakeholder audience discussed a range of approaches in pharmaceutical policies, which have the potential to successfully and sustainably address current and future challenges in ensuring patient access to affordable medicines globally.

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Background: Syphilis is a sexually transmitted infection (STI) that can be prevented and effectively treated; yet it continues to be a cause of morbidity and mortality worldwide. There is a limited understanding of the epidemiology of syphilis in the Middle East and North Africa (MENA) region.

Methods: A systematic review conducted up to April 30, 2024 assessed the prevalence of syphilis and followed PRISMA guidelines, without language and date restrictions.

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Systematic comparison of quantity and quality of RNA recovered with commercial FFPE tissue extraction kits.

J Transl Med

January 2025

Tumour Biology and Immunology Laboratory, Research Branch, Sidra Medicine, Doha, Qatar.

Background: FFPE tissue samples are commonly used in biomedical research and are a valuable source for next-generation sequencing in oncology, however, extracting RNA from these samples can be difficult the quantity and quality achieved can impact the downstream analysis. This study compared the effectiveness of seven different commercially available RNA extraction kits specifically designed for use with FFPE samples in terms of the quantity and quality of RNA recovered.

Methods: This study used 9 samples of FFPE tissue from three different types of tissue (Tonsil, Appendix and lymph node of B-cell lymphoma) to evaluate RNA extraction methods.

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Fabrication of heavy density mortar using aggregates reinforced with available solid inorganic chemical additives is of a great importance as a protective layer to mitigate radiations in nuclear facilities. The effect of lead oxide and borax decahydrate on the hydration kinetics was evaluated by determining setting time, leachability and compressive strength. To speed up the reaction, 0.

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Non-syndromic hearing loss (NSHL) is a genetically heterogeneous disorder accounting for almost 70% of the total congenital hearing loss. The implementation of rapid advanced sequencing methods has significantly contributed to the correct molecular diagnosis for several rare genetic disorders, including NHSL. Features of two probands with NHSL were clinically and genetically evaluated.

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Background: Adults with spinal deformity (ASD) are known to have spinal malalignment, which can impact their quality of life and their autonomy in daily life activities. Among these tasks, ascending and descending stairs is a common activity of daily life that might be affected.

Research Question: What are the main kinematic alterations in ASD during stair ascent and descent?

Methods: 112 primary ASD patients and 34 controls filled HRQoL questionnaires and underwent biplanar X-from which spino-pelvic radiographic parameters were calculated.

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Introduction: Corneal confocal microscopy (CCM) detects neurodegeneration in mild cognitive impairment (MCI) and dementia and identifies subjects with MCI who develop dementia. This study assessed whether abnormalities in corneal endothelial cell (CEC) morphology are related to corneal nerve morphology, brain volumetry, cerebral ischemia, and cognitive impairment in MCI and dementia.

Methods: Participants with no cognitive impairment (NCI), MCI, and dementia underwent CCM to quantify corneal endothelial cell density (CECD) and area (CECA), corneal nerve fiber morphology, magnetic resonance imaging (MRI) brain volumetry, and severity of brain ischemia.

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Colorectal cancer (CRC) represents a major public health challenge globally, particularly in the Gulf Cooperation Council (GCC) countries, where it is identified as the second most prevalent form of cancer. Despite advancements in management strategies, tailored guidelines specific to the Gulf region are lacking. This paper presents consensus recommendations developed by a panel of experts from the GCC countries to address this gap.

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Background: Polycystic ovary syndrome (PCOS) is a significant contributor to female infertility and other various metabolic disorders. This systematic review estimates the prevalence of PCOS among infertile women in the Gulf Cooperation Council (GCC) countries.

Methods: The study searched five databases (PubMed, Embase, CINAHL, Web of Science, and SCOPUS), from their inception to 2022 for observational studies conducted in GCC countries.

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In recent years, there has been a growing interest in developing a distinguished alternative to human consumption of animal-based proteins. The application of lentil proteins in the food industry is typically limited due to their poor solubility and digestibility. An innovative method of balancing lentil-whey protein (LP-WP) complexes with higher-quality protein properties was established to address this issue, which coupled a pH-shifting approach with fermentation treatment.

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Article Synopsis
  • Hepatitis C Virus (HCV) is a serious bloodborne virus causing liver disease, and currently, there are no effective vaccines to prevent its spread, highlighting the importance of understanding T cell epitopes (TCEs) in immune response.
  • TCellPredX is a new prediction tool designed to identify TCEs related to HCV by using advanced machine learning techniques and a variety of feature encodings, which together improve the predictive accuracy of TCE identification.
  • The tool has demonstrated high accuracy scores (0.900 and 0.897) in identifying relevant peptides for vaccine development, establishing TCellPredX as a significant resource for future research aimed at creating an effective HCV vaccine.
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Article Synopsis
  • Langerhans cell histiocytosis (LCH) is a rare disorder marked by the abnormal buildup of dendritic histiocytes in tissues, often presenting as single- or multi-system diseases, particularly affecting adults.
  • In a reported case, a 46-year-old woman experienced back pain, motor and sensory deficits, and was diagnosed with a compression fracture in the spine, alongside signs of central nervous system and salivary gland involvement.
  • The patient underwent surgical intervention that included decompression and a biopsy, confirming the presence of LCH, highlighting the complexity and rarity of adult-onset LCH with extensive system involvement.
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To identify the incidence of injury time-out due to field injuries in highest level professional football (soccer) international tournaments and to compare the features of these incidents between men's and women's football. The incidence of stoppage time due to incidents and the resulting injury characteristics of professional football players participating in the 2018 FIFA Men's World Cup (MWC) in Russia and the 2019 FIFA Women's World Cup (WWC) in France were examined retrospectively through video analysis. In the 2018 MWC, a total of 123 injury time-outs with 132 treatments occurred in 64 matches, while in the 2019 WWC, 142 incidents with 150 injured players were recorded in 52 matches.

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