Cellular senescence is a complex, dynamic process consisting of the irreversible arrest of growth and gradual deterioration of cellular function. Endothelial senescence affects the cell’s ability to repair itself, which is essential for maintaining vascular integrity and leads to the development of endothelial dysfunction, which has an important role in the pathogenesis of cardiovascular diseases. Senescent endothelial cells develop a particular, senescence-associated secretory phenotype (SASP) that detrimentally affects both surrounding and distant endothelial cells, thereby facilitating the ageing process and development of age-related disorders. Recent studies highlight the role of endothelial senescence and its dysfunction in the pathophysiology of several age-related diseases. MicroRNAs are small noncoding RNAs that have an important role in the regulation of gene expression at the posttranscriptional level. Recently, it has been discovered that miRNAs could importantly contribute to endothelial cell senescence. Overall, the research focus has been shifting to new potential mechanisms and targets to understand and prevent the structural and functional changes in ageing senescent endothelial cells in order to prevent the development and limit the progression of the wide spectrum of age-related diseases. The aim of this review is to provide some insight into the most important pathways involved in the modulation of endothelial senescence and to reveal the specific roles of several miRNAs involved in this complex process. Better understanding of miRNA’s role in endothelial senescence could lead to new approaches for prevention and possibly also for the treatment of endothelial cells ageing and associated age-related diseases.

Spontaneous urticaria is a common allergic skin condition affecting 0.5–1% of individuals and may burden on health care expenditure or may be associated with remarkable morbidity. In this study, we measured the effect of vitamin D supplementation in patients with a diagnosis of CSU. Furthermore, quality of life and cytokine changes were evaluated. The clinical trial was conducted on 20 patients with idiopathic chronic urticaria. Vitamin D was administered orally for 8 weeks and disease activity was measured pre- and post-treatment using USS and DLQI. On the other hand expressions of IL-17, IL-10, Foxp3, and TGF-β by Real-time RT-PCR were assessed. USS questionnaire showed that severity of idiopathic urticaria after the intervention, which compared with the first day reached a significant 55% reduction. The DLQI quality of life questionnaire 2 months after treatment showed 55% improvement. Along with the significant improvement of clinical symptoms, use of vitamin D increase FOXP3 gene expression and downregulation of IL-10, TGF-B, and FOXP3, IL-17, but these changes were not statistically significant. These might happen due to lack of enrolled population in the investigation. Vitamin D can be used along with standard medical care and it’s a safe and cost-effective method for the treatment of chronic urticaria with deficiency of vitamin D.

Background: This study assessed whether a modified immunotherapy schedule for allergic rhinitis could be safe and efficient. Ultra-rush immunotherapy (URIT) rapidly desensitizes patients to aeroallergens. Objective: We aimed to develop a modified URIT protocol in 3 days to achieve the target dose while observing whether it could improve this situation and decrease the time to achieve the maintenance dose. Methods: The URIT was exercised in 21 patients with perennial allergic rhinitis. Premeditations were given to the patients 3 days prior to the immunotherapy and during the 3 days injections immunotherapy: pred nisolone, ranitidine, and Airokast/montelukast. Finally, the T cell population frequencies of patients prior to and after immunotherapy, including T helper 1, T helper 2, cytotoxic T lymphocytes, and regulatory T cells, were studied using flow cytometry. During the URIT protocol, 21 patients received 291 injections. Result: Six patients (28.6%) showed systemic reactions in our study. All systemic reactions occurred on the third day by the 1:1 dilution of the maintenance dose. These systemic reactions occurred in three patients after 13 injections, and the three remaining patients showed systemic reactions following the last injection. No systemic reaction was observed on the first and second day of the therapy, and the risk of systemic reaction with every injection was about 2%. Among the T cell populations, CD3+ and CD8+ cells decreased significantly. Conclusion: The findings emphasized that URIT, alongside premedication with a high dose of antihistamine, helped to achieve the maintenance dose and control clinical manifestations.

BackgroundAllergen-specific immunotherapy is known as the only disease-modifying treatment for IgE-mediated allergic disorders. Intra lymphatic immunotherapy (ILIT) is a safe, effective, and time-saving alternative to subcutaneous immunotherapy (SCIT). This study aimed to evaluate the effects and safety of ILIT in patients with moderate to severe allergic rhinitis. MethodsIn this clinical trial, fifteen patients with moderate to severe allergic rhinitis between 18-65 years old received monthly intralymphatic inguinal injections of an active allergen (1000 SQ-U Salsola kali pollen). Clinical effects were assessed before and 4 weeks after treatment and at two consecutive pollination seasons and following non-pollination season in April.ResultsNo moderate or severe reactions were recorded following the ILIT treatment. Lymph node enlargement, local itching/erythema were seen in 6.7%, 13.3% of total respectively one day after injection. Patients who received ILIT experienced a significant clinical improvement in self-recorded seasonal allergic symptoms after treatment, as compared to themselves before ILIT. Quality of life significantly got better based on the Mini RQLQ questionnaire.ConclusionAlthough this study is based on a limited number of patients, ILIT with Salsola-pollen extract appears to decrease symptoms of allergic rhinitis without causing any crucial complications.This clinical trial study was recorded in the Iran Registry of Clinical Trials (IRCT20161206031256N2).

Allergen-specific immunotherapy is the only disease-modifying treatment for IgE-mediated allergic disorders. Intra lymphatic immunotherapy (ILIT) is an efficacious and time-saving alternative to subcutaneous immunotherapy (SCIT). This study aimed to evaluate the effects and safety of ILIT in patients with moderate to severe allergic rhinitis. In this clinical trial, patients between 18 and 65 years old with moderate to severe allergic rhinitis were enrolled. They received monthly intra-lymphatic inguinal injections of an active allergen (1000 SQ-U Salsola kali pollen). Their clinical symptoms were assessed before and four weeks after treatments. The clinical signs were also evaluated during two consecutive pollination seasons and the following non-pollination season in April. No moderate or severe reactions were recorded following ILIT treatment. Lymph node enlargement, angioedema/urticaria, and local itching were seen instantly after injection. Patients who received ILIT experienced a significant clinical improvement in self-recorded seasonal allergic symptoms after the treatments, compared to themselves before ILIT. Furthermore, their quality of life significantly improved. This study suggests ILIT with Salsola-pollen extract may decrease symptoms of allergic rhinitis. It was safe and did not cause any crucial complications.