The impact of mindfulness-based stress reduction training on the occupational stress and burnout experienced by nurses in geriatric wards? A randomized controlled trial.

In this clinical trial, 60 nurses from three geriatric centers were enlisted and randomly split into two groups: control (n = 30) and intervention (n = 30). Statistical analysis using SPSS version 21 employed Kolmogorov-Smirnov, Chi square, and t-test to assess results. The intervention group received eight training sessions. After the MBSR Training in the intervention groups, results showed there was a statistically significant difference between the two groups concerning the scores of the subscales of death and dying (t = 6.161, P < 0.001), conflicts with physicians (t = 7.962, P < 0.001), inadequate preparation (t = t = 6.524, P < 0.001), lack of support resources (t = 5.532, P < 0.001), conflicts with nurses (t = -6.632, P < 0.001), workload (t = 6.587, P < 0.001), uncertainty of treatment (t = 5.587, P < 0.001) as well as the scores of the subscales of burnout.

Self-esteem and optimism in patients with major depression disorder: a cross-sectional study.

Background: Depressive disorders are common mental illnesses characterized by persistent feelings of sadness, hopelessness, and loss of interest in activities. Self-esteem refers to the appraisal of one's worth and personality, whereas optimism reflects a positive attitude and the expectation of positive outcomes. Therefore, the present study aims to determine the average self-esteem and optimism of patients with depression in 2022. Methods: The present study is a single center and prospective descriptive-analytical study in which 121 patients out of 154 participants with major depression using convenience sampling were studied. Recruitment started on 10 June 2022 and ended on 12 July 2022. Data were collected using a demographic questionnaire, the Rosenberg Self-Esteem Scale (RSES), and the Revised Life Orientation Test (LOT -R). Data analysis was performed using statistical tests and the Pearson correlation coefficient with SPSS software version 21. Results: The mean and SD of patients' self-esteem scores were 14.68±1.30, and the mean and SD for optimism scores were 9.90±1.68. Pearson correlation analysis showed that educational level had a significant inverse relationship with patients' self-esteem scores (r=-0.009, P=0.03), and sex had a significant relationship with patients' optimism scores (r=0.175, P=0.008). Conclusion: Considering the importance of self-esteem and optimism in the recovery and return to society of patients with major depression, it is necessary to take measures to strengthen and increase self-esteem and optimism in these patients.

Animal Models for the Study of Food Allergies.

In the last decades there has been a parallel increase in the incidence of food allergies and the development of experimental mouse models. These models have improved our understanding of the disease but do have limitations. For instance, they do not entirely reproduce human pathophysiology; moreover, validated and predictive models are absent. Nevertheless, the models provide opportunities to further understand fundamental disease mechanisms. The selection of any of the many experimental models depends on the research aims. This overview focuses on IgE-mediated food allergy in wild-type, genetically modified, and humanized mouse models and presents a comprehensive overview of the currently used protocols, challenges, and limitations, as well as provides guidelines for model selection based on the three critical areas of research: 1) safety assessment, 2) evaluating treatment, and 3) elucidating pathophysiology. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC.

"We are really starving for respect and support," the struggle of Iranian nurses in adhering to professional values: A qualitative study.

AIMS: To investigate nurses' experiences of adhering to professional values in clinical settings. DESIGN: A qualitative study with a conventional content analysis approach. METHODS: This study was conducted from January 2021 to March 2022. Semi-structured interviews were conducted with 12 nurses working in different wards of five public and private hospitals in West Azerbaijan of Iran. Data were analysed using the conventional content analysis approach proposed by Graneheim and Lundman (Nurse education today, 24, 2004, 105) RESULTS: "Barriers to nurses' professional values" emerged as the main category of Iranian nurses' experiences in adhering to professional values. Three subcategories of barriers were revealed: "nurses' challenges," "professional suppressors" and "poor working conditions." CONCLUSION: Barriers in clinical settings can overshadow nurses' professional performance and disrupt their adherence to professional values. Nursing managers must pay attention to nurses' challenges, their professional suppressors and poor working condition to help them promote their professional performance in clinical settings. Thus, nursing managers should not neglect the continuous education of nurses to assist them in increasing their clinical skills by holding practical and theoretical workshops. Improving the working conditions and clinical atmosphere by recruiting a capable workforce and applying psychological and financial support for nurses are essential to increase the quality of nursing care.

The role of skin inflammation, barrier dysfunction, and oral tolerance in skin sensitization to gluten-derived hydrolysates in a rat model.

BACKGROUND: Adverse reactions to wheat-containing skin care products have been linked to food allergy development. OBJECTIVES: To determine the role of skin barrier dysfunction and inflammation in sensitization to gluten-derived hydrolysates via the skin in Brown Norway rats with and without oral tolerance to wheat. METHODS: Skin barrier defect was induced by mechanical disruption, and skin inflammation was induced by topical application of SLS or MC903. Unmodified, enzyme hydrolyzed, or acid hydrolyzed gluten products were applied to the skin three times per week for 5 weeks. Subsequently, rats were orally gavaged with unmodified gluten. RESULTS: Wheat-naïve rats were readily sensitized to gluten hydrolysates via the skin. Skin barrier defect and skin inflammation had little effect on the skin sensitization and hydrolysate-specific IgE levels. Oral administration of unmodified gluten promoted the production of unmodified gluten-specific IgE in rats sensitized via the skin. Sensitization through intact skin, disrupted skin barrier, or inflamed skin was unable to break tolerance to unmodified gluten in rats on a wheat-containing diet. CONCLUSIONS: Mechanical skin barrier disruption and skin inflammation play a limited role in experimental skin sensitization to gluten-derived hydrolysates.

Influence of the environment on ragweed pollen and their sensitizing capacity in a mouse model of allergic lung inflammation.

Common ragweed (Ambrosia artemisiifolia) is an invasive plant with allergenic pollen. Due to environmental changes, ragweed pollen (RWP) airborne concentrations are predicted to quadruple in Europe by 2050 and more than double allergic sensitization of Europeans by 2060. We developed an experimental RWP model of allergy in BALB/c mice to evaluate how the number of RWP and how RWP collected from different geographical environments influence disease. We administered RWP six times over 3 weeks intranasally to the mice and then evaluated disease parameters 72 h later or allowed the mice to recover for at least 90 days before rechallenging them with RWP to elicit a disease relapse. Doses over 300 pollen grains induced lung eosinophilia. Higher doses of 3,000 and 30,000 pollen grains increased both eosinophils and neutrophils and induced disease relapses. RWP harvested from diverse geographical regions induced a spectrum of allergic lung disease from mild inflammation to moderate eosinophilic and severe mixed eosinophilic-neutrophilic lung infiltrates. After a recovery period, mice rechallenged with pollen developed a robust disease relapse. We found no correlation between Amb a 1 content, the major immunodominant allergen, endotoxin content, or RWP structure with disease severity. These results demonstrate that there is an environmental impact on RWP with clinical consequences that may underlie the increasing sensitization rates and the severity of pollen-induced disease exacerbation in patients. The multitude of diverse environmental factors governing distinctive patterns of disease induced by RWP remains unclear. Further studies are necessary to elucidate how the environment influences the complex interaction between RWP and human health.

Overview of in vivo and ex vivo endpoints in murine food allergy models: Suitable for evaluation of the sensitizing capacity of novel proteins?

Significant efforts are necessary to introduce new dietary protein sources to feed a growing world population while maintaining food supply chain sustainability. Such a sustainable protein transition includes the use of highly modified proteins from side streams or the introduction of new protein sources that may lead to increased clinically relevant allergic sensitization. With food allergy being a major health problem of increasing concern, understanding the potential allergenicity of new or modified proteins is crucial to ensure public health protection. The best predictive risk assessment methods currently relied on are in vivo models, making the choice of endpoint parameters a key element in evaluating the sensitizing capacity of novel proteins. Here, we provide a comprehensive overview of the most frequently used in vivo and ex vivo endpoints in murine food allergy models, addressing their strengths and limitations for assessing sensitization risks. For optimal laboratory-to-laboratory reproducibility and reliable use of predictive tests for protein risk assessment, it is important that researchers maintain and apply the same relevant parameters and procedures. Thus, there is an urgent need for a consensus on key food allergy parameters to be applied in future food allergy research in synergy between both knowledge institutes and clinicians.

Th2-TRMs Maintain Life-Long Allergic Memory in Experimental Asthma in Mice.

Allergic asthma is a chronic inflammatory remitting-relapsing disease affecting the airways. Long-lived allergen-specific memory CD4+ T helper 2 (Th2) cells in mice persist in lungs for more than 2 years after the induction of experimental allergic asthma (EAA). To further understand lung Th2 memory cells, we tracked CD4+ T cells in spleen and lungs from healthy mice, through the initiation of acute EAA, recovery (remission), and allergen-induced disease relapse. We identified a lung CD3+CD4+ cell subset that expresses CD44hiCD62L-CD69+ST2+, produces Th2 cytokines, and mediates allergen-induced disease relapse despite treatment with FTY720 and anti-CD4 antibody. These cells reside in the lung tissue for the lifetime of mice (>665 days) and represent long-lived pathogenic Th2 tissue resident memory cells (TRMs) that maintain "allergic memory" in lung. We speculate that these data implicate that human Th2-TRMs sentinels in lungs of patients are poised to rapidly respond to inhaled allergen and induce asthma attacks and that therapeutic approaches targeting these cells may provide relief to patients with allergic asthma.

Assessment of Diagnostic Value of Single View Dynamic Technique in Diagnosis of Developmental Dysplasia of Hip: A Comparison with Static and Dynamic Ultrasond Techniques.

BACKGROUND: Developmental dysplasia of hip (DDH) is a common childhood disorder, and ultrasonography examination is routinely used for screening purposes. In this study, we aimed to evaluate a modified combined static and dynamic ultrasound technique for the detection of DDH and to compare with the results of static and dynamic ultrasound techniques. METHODS: In this cross-sectional study, during 2013- 2015, 300 high-risk infants were evaluated by ultrasound for DDH. Both hips were examined with three techniques: static, dynamic and single view static and dynamic technique. Statistical analysis was performed using SPSS version 11.5. RESULTS: Patients aged 9 days to 83 weeks. 75% of the patients were 1 to 3 months old. Among 600 hip joints, about 5% were immature in static sonography and almost all of them were unstable in dynamic techniques. 0.3% of morphologically normal hips were unstable in dynamic sonography and 9% of unstable hips had normal morphology. The mean ß angle differences in coronal view before and after stress maneuver was 14.43±5.47° in unstable hips. Single view static and dynamic technique revealed that all cases with acetabular dysplasia, instability and dislocation, except two dislocations, were detected by dynamic transverse view. For two cases, Ortolani maneuver showed femoral head reversibility in dislocated hips. Using single view static and dynamic technique was indicative and applicable for detection of more than 99% of cases. CONCLUSION: Single view static and dynamic technique not only is a fast and easy technique, but also it is of high diagnostic value in assessment of DDH.

Marchiafava-Bignami and Alcohol Related Acute Polyneuropathy: The Cooccurrence of Two Rare Entities.

Objectives. The aim of this article is to represent the first reported case with cooccurrence of two rare alcohol related complications. Case Report. We report a 38-year-old man with chronic alcoholism who presented with both cranial and peripheral nerve palsy. On MRI examination characteristic findings of Marchiafava-Bignami disease were recognized. Discussion. Marchiafava-Bignami disease (MBD) is a rare complication of long-term, heavy alcohol abuse that has characteristic MRI findings. Acute alcohol related polyneuropathy (AARP) is another rare and not-well-understood complication of chronic alcohol abuse. We could not find any previous report of the cooccurrence of these two complications in the literature.

Detection of the enterotoxigenic genes (sei,sej) in Staphylococcus aureus isolates from bovine mastitis milk in the West Azerbaijan of Iran.

Staphylococcus aureus is a major causative pathogen of clinical and subclinical mastitis of dairy domestic ruminants. This organism produces a variety of extracellular toxins and virulence factors such as enterotoxin SEI and SEJ that contribute to its pathogenic potential. In this study 25 S. aureus isolates obtained from four dairy herds of Urmia region which is located in West Azerbaijan province in Iran. The tested isolates were identified on the basis of the cultural and biochemical properties, as well as amplification of the aroA gene which is specific for S. aureus. All isolates were also analyzed for the presence of the SEI (sei) and SEJ (sej) encoding genes using polymerase chain reaction (PCR). Seven positive isolates were detected for sei, but sej gene was not detected in any of the total number of 25 isolates. The present study revealed that the PCR amplification of the aroA gene could be used as a powerful tool for identification of S. aureus from the cases of bovine mastitis. Results of the present study also showed that the strains of S. aureus which cause mastitis can potentially produce enterotoxin SEI. Overall, our results suggest that it is of special importance to follow the presence of enterotoxin-producing S. aureus in other dairy products, especially for protecting the consumers from staphylococcal food poisoning.