Publications by authors named "Hammad H"

This study aimed to identify the presence of gastrointestinal nematode populations resistant to albendazole, levamisole, and ivermectin in six farms located in three regions of Jordan (Irbid, Mafraq, and Ma'an). Infected sheep (40 per farm) with at least 100 eggs per gram were randomly divided into four groups (10 animals per group). Three groups were treated with ivermectin, albendazole, or levamisole while the fourth group was used as a negative control group.

View Article and Find Full Text PDF

Since the precursor frequency of naive T cells is extremely low, investigating the early steps of antigen-specific T cell activation is challenging. To overcome this detection problem, adoptive transfer of a cohort of T cells purified from T cell receptor (TCR) transgenic donors has been extensively used but is not readily available for emerging pathogens. Constructing TCR transgenic mice from T cell hybridomas is a labor-intensive and sometimes erratic process, since the best clones are selected based on antigen-induced CD69 upregulation or IL-2 production in vitro, and TCR chains are polymerase chain reaction (PCR)-cloned into expression vectors.

View Article and Find Full Text PDF

Background And Aims: Pancreatic endotherapy (PET) offers a treatment option for adverse events of chronic pancreatitis (CP) such as pancreatic duct (PD) strictures, stones, and pseudocysts. Previous studies have primarily focused on how PET affects pain, so the primary aim of this study was to evaluate the effect of PET on quality of life.

Methods: This single-center prospective study assessed quality of life before the initiation of endotherapy using a validated CP-specific quality of life instrument.

View Article and Find Full Text PDF

Background: The World Health Organization (WHO) stresses the importance of worldwide vaccine coverage of coronavirus-19 (COVID-19) vaccination. This study fills a critical gap in the literature by providing empirical evidence on the factors influencing COVID-19 vaccine hesitancy and inequity in the Middle East and North Africa (MENA) region. This study investigated the determinants of psychological antecedents and other factors behind COVID-19 vaccination and their role in vaccine coverage in MENA.

View Article and Find Full Text PDF
Article Synopsis
  • - The study investigated the prevalence of imposter syndrome among nursing students in Egypt and its links to mental health issues like depression, anxiety, and stress in a sample of 1,572 students.
  • - Findings revealed that a significant number of students experienced various levels of depression (25%), anxiety (22.6%), and stress (13.3%), with 46.3% also suffering from moderate imposter syndrome; notably, imposter syndrome was positively correlated with poorer mental health outcomes.
  • - The research highlights the specific demographics at higher risk for these mental health issues, suggesting that academic pressure on female students in their later years and other socio-economic factors might contribute to their struggles and indicating a need for better support systems. *
View Article and Find Full Text PDF

Aims: To assess the prevalence of tokophobia (fear of childbirth) and evaluate the relationship between catastrophic thinking, tokophobia, childbirth preferences and the health profile of primigravida (first-time pregnant women in rural areas).

Design: A descriptive correlational study.

Method: This study, implemented from January 2024 to March 2024, involved 300 primigravidae.

View Article and Find Full Text PDF

Background: Building nursing process competency among beginner nurses is a pivotal need in contemporary, complex, fast-paced nursing practice. However, transitioning from the educational phase to practicing as a nurse can be a significant adjustment. New practitioners often experience a period of shock, which may present challenges in developing nurse competency.

View Article and Find Full Text PDF

Epidermal growth factor receptors (EGFR) are primarily engaged in the regulation of fundamental cellular processes. Overexpression and mutations in these tyrosine kinases cause a variety of malignancies, including lung cancer. The current study addresses the suppression of inactive and mutant variants of the EGFR target site via two primary proposals: (1) To prevent the formation of its mutant form by inhibiting inactive EGFR.

View Article and Find Full Text PDF

Granulocyte-macrophage colony stimulating factor (GM-CSF) is a pleiotropic cytokine, able to promote both myelopoiesis and activation of immune cells. Particularly in the lung, GM-CSF plays an important homeostatic role in the development and maintenance of alveolar macrophages, and is therefore considered to play a role in respiratory virus infections such as influenza and SARS-CoV-2, although the benefits of GM-CSF treatment in clinical studies remain inconclusive. To address this, we tested inhaled GM-CSF treatment in the Pneumonia Virus of Mice (PVM) mouse model.

View Article and Find Full Text PDF
Article Synopsis
  • - The study analyzed feces from 348 cats in Jordan, finding Giardia duodenalis in 27.9% of tested cats, Entamoeba histolytica in 0.6%, and no cases of Cryptosporidium.
  • - Higher rates of Giardia infection were observed in cold semiarid regions (67%) compared to cold desert areas (24%), with indoor and outdoor cats showing similar infection rates.
  • - Most Giardia infections were identified as zoonotic assemblage B, with a possible new mutation in the gene associated with this type, suggesting potential risks for zoonotic transmission from cats to humans.
View Article and Find Full Text PDF

We aimed to describe the safety and tolerability of initiation of sodium-glucose cotransporter 2 inhibitors (SGLT2i) during hospitalisation with heart failure, and the frequency of, and reasons for, subsequent discontinuation. In total, 934 patients who were not already prescribed a SGLT2i were hospitalised with heart failure, 77 (8%) were initiated on a SGLT2i a median of five (3-8.5) days after admission and two (0.

View Article and Find Full Text PDF
Article Synopsis
  • Asthma involves lung inflammation and mucus buildup regulated by Th2 cells that release specific interleukins (IL-4, IL-5, IL-13), with house dust mite exposure playing a key role in triggering this response.
  • Basophils are essential for the development of type 2 immunity and promote asthma symptoms such as eosinophilic inflammation and bronchial hyperreactivity during allergen exposure in mouse models.
  • While the elimination of basophils before allergen exposure does not impact Th2 immune response, their removal during the challenge phase affects asthma severity, highlighting basophils as critical players in enhancing allergic inflammation through IL-33 signaling.
View Article and Find Full Text PDF

Chronic infection with Schistosoma mansoni parasites is associated with reduced allergic sensitization in humans, while schistosome eggs protects against allergic airway inflammation (AAI) in mice. One of the main secretory/excretory molecules from schistosome eggs is the glycosylated T2-RNAse Omega-1 (ω1). We hypothesized that ω1 induces protection against AAI during infection.

View Article and Find Full Text PDF

Background: Asthma is often accompanied by type 2 immunity rich in IL-4, IL-5, and IL-13 cytokines produced by T2 lymphocytes or type 2 innate lymphoid cells (ILC2s). IL-2 family cytokines play a key role in the differentiation, homeostasis, and effector function of innate and adaptive lymphocytes.

Objective: IL-9 and IL-21 boost activation and proliferation of T2 and ILC2s, but the relative importance and potential synergism between these γ common chain cytokines are currently unknown.

View Article and Find Full Text PDF

Neosporosis is a proven disease of farm animals and dogs caused by Neospora caninum. This cross-sectional study investigates N. caninum prevalence and seroprevalence among 268 dogs.

View Article and Find Full Text PDF

The capacity to perceive tactile input at the fingertips, referred to as tactile sensitivity, is known to diminish with age due to regressive changes to mechanoreceptor density and morphology. Sensitivity is measured as perceptual responses to stimuli of varying intensity. Contrary to traditional sensitivity monitoring instruments, smartphones are uniquely suited for remote assessment and have shown to deliver highly calibrated stimuli along a broad spectrum of intensity, which may improve test reliability.

View Article and Find Full Text PDF

One of the most significant consequences of systemic lupus erythematosus (SLE) is lupus nephritis (LN). Visfatin, an adipokine that is significantly expressed in visceral fat and is a marker of endothelial dysfunction in chronic kidney disease, has multiple proinflammatory actions. We aimed to evaluate the state of serum visfatin in SLE patients and to detect its possible correlation with the disease's activity and effects on the kidney affection.

View Article and Find Full Text PDF

Background: The empathic relationship between nursing students and patients allows them to understand and address caring behavior for patients. Appropriate emotional support equips them to overcome the complexities and difficulties inherent in patient care. This support cultivates resilience and self-awareness, enabling students to manage their emotions effectively and establish meaningful connections and caring with their patients.

View Article and Find Full Text PDF

Respiratory viral infections represent one of the major causes of death worldwide. The recent coronavirus disease 2019 pandemic alone claimed the lives of over 6 million people around the globe. It is therefore crucial to understand how the immune system responds to these threats and how respiratory infection can be controlled and constrained.

View Article and Find Full Text PDF

Tuberculosis (TB), caused by Mycobacterium tuberculosis, ranks among the top causes of global human mortality, as reported by the World Health Organization's 2022 TB report. The prevalence of M. tuberculosis strains that are multiple and extensive-drug resistant represents a significant barrier to TB eradication.

View Article and Find Full Text PDF

Sublingual allergen immunotherapy (SLIT) is an emerging treatment option for allergic asthma and a potential disease-modifying strategy for asthma prevention. The key cellular events leading to such long-term tolerance remain to be fully elucidated. We administered prophylactic SLIT in a mouse model of house dust mite (HDM)-driven allergic asthma.

View Article and Find Full Text PDF