House dust mites (HDMs) are a major source of indoor allergens, significantly contributing to allergic rhinitis, asthma and atopic dermatitis. This review examines the epidemiology, microbiological classification and pathophysiology of HDM allergy, highlighting key allergens such as Der p 1, Der p 2 and Der p 23. Furthermore, we discuss the pivotal role of allergen-specific immunotherapy (AIT), the only disease-modifying treatment for immunoglobulin (Ig)-E disease. Recent studies have identified predictive biomarkers for allergen-specific immunotherapy (AIT) efficacy, including the specific IgE to total IgE (sIgE/tIgE) ratio and regulatory follicular T cell profiles, supporting a more personalized approach to therapy. Additionally, emerging immunotherapy strategies, such as recombinant allergens and peptide-based formulations, aim to improve safety and clinical outcomes. As HDM allergy prevalence rises globally, further research into optimizing diagnostics and treatment strategies remains crucial for enhancing patient care.

Because of ambiguous and widely debated observations concerning the incidence, trend, and management of TC, we performed this analysis. We drew attention to some events, such as “cancer screening activity”, introduction of noninvasive follicular neoplasm with papillary-like nuclear features (NIFTP) to TC types, possibility of papillary thyroid microcarcinoma (PTMC) active surveillance (AS), occurrence of personalized medicine in TC management, and, finally, COVID-19 pandemic time. Because of the opinion that all changes have been made mostly by PTC, we compared it to the remaining types of TC in terms of incidence, clinical and pathological characteristics, and treatment. We analyzed patients treated in a single surgical center in eastern Europe (Poland). The prevalence of TC significantly increased from 5.15% in 2008 to 13.84% in 2015, and then significantly decreased to 1.33% in 2022 when the COVID-19 pandemic lasted (p < 0.0001). A similar trend was observed for PTC, when the incidence significantly increased to 13.99% in 2015 and then decreased to 1.38% in 2022 (p < 0.0001). At that time, the NIFTP category was introduced, and observation of PTMC began. The prevalence of FTC and MTC also increased until 2015 and then decreased. Significant differences in age, types of surgery, necessity of reoperation, and pTNM between PTCs and other types of TCs were observed. The average age was significantly lower in PTC patients than in patients with the remaining types of TC (p < 0.0001). Four milestones, including NIFTP introduction, the possibility of PTMC AS, personalized cancer medicine, and the COVID-19 pandemic, may have influenced the general statistics of TC.

Background/Objectives: The Lymph Node Ratio (LNR) index is the proportion of lymph nodes with present metastases to lymph nodes removed and examined. This is an additionally established parameter for predicting the prognosis of gastric cancer patients. The most popular cancer classification, TNM, describes only the number of affected lymph nodes. It can result in a negative overestimation of the prognosis of patients with gastric cancer if the number of nodes examined is relatively limited. Methods: In this study, we retrospectively analyzed 194 patients diagnosed with gastric cancer operated on between 2017 and 2021 at the Clinical Department of Oncological Surgery, University Centre of General and Oncological Surgery of the University Clinical Hospital in Wroclaw. In total, 133 patients underwent gastrectomy with D2 lymphadenectomy and 61 remaining patients had the resection procedure abandoned due to an unresectable lesion. The LNR index was calculated based on histopathological examination, and postoperative complications were assessed using the Clavien–Dindo (C-D) scale. Statistical analysis was performed regarding the dependence of LNR on the following patient characteristics: sex, age, TNM features, tumor stage, tumor location, performed procedure, chemotherapy application, C-D complication rate, and survival rate. Results: The value of the LNR index significantly depends on TNM features (p < 0.05), clinical tumor stage (p < 0.05), and patient survival (p < 0.05), while no statistically significant relationship with C-D complication rate was demonstrated. Conclusions: The LNR index is a relevant parameter in predicting prognosis and survival time in gastric cancer patients, but future studies on larger and differentiated groups of patients could further confirm its usefulness in the development of guidelines.

Because of ambiguous and widely debated observations concerning incidence trend and management of TC, we performed this analysis. We drew attention to some events, such as “cancer screening activity,” introduction of noninvasive follicular neoplasm with papillary-like nuclear features (NIFTP) to TC types, possibility of papillary thyroid microcarcinoma (PTMC) active surveillance (AS), occurrence of personalized medicine in TC management and finally COVID-19 pandemic time. Because of the opinion that all changes have been made mostly by PTC, we compared it to the rest of types of TC in terms of incidence, clinical and pathological characteristics and treatment. The prevalence of TC significantly increased from 5.15% in 2008 to 13.84% in 2015 and then significantly decreased to 1.33% in 2022 when the pandemic lasted (p<0.0001). A similar trend was observed for PTC, when the incidence significantly increased to 13.99% in 2015 and then decreased to 1.38% in 2022 (p<0.0001). At that time, the NIFTP category was introduced, and observation of PTMC began. The prevalence of FTC and MTC also increased until 2015 and then decreased. Significant differences in age, types of surgery, necessity of reoperation, pTNM, between PTCs and other types of TCs were observed. The average age was significantly lower in PTC patients than in patients with the remaining types of TC (p<0.0001). Four milestones, including NIFTP introduction, the possibility of PTMC AS, personalized cancer medicine and the COVID-19 pandemic, may have influenced the general statistics of TC.

Background: The accurate preoperative diagnosis of TC plays a very important role in the selection of an appropriate treatment strategy. In addition to the hypoechogenicity of thyroid lesions on ultrasound and the presence of microcalcifications or high cell atypia on FNAB, highlighting the features of laterality and focality and ascertaining their influence (alone or combined) on TC staging and appropriate treatment are crucial. Materials and Methods: A retrospective analysis of the clinical data of 697 patients admitted to the study center between 2008 and 2023 was conducted. Preoperative data (age, sex, type of surgery, ultrasound, and FNAB data) and postoperative histopathological data indicating TC advancement (pTNM, extrathyroidal extension, vascular invasion) were collected and analyzed. Patients presenting well-differentiated TCs (papillary TC and follicular TC) were isolated for better clinical evaluation. Finally, patients were divided into four groups according to their laterality and focality features, and the influences of combinations of these features on TC advancement were analyzed. Results: The largest group included patients with unilateral and solitary TC (n = 461). This group had the lowest rate of negative prognostic features: extrathyroidal extension, lymph node invasion, distant metastases, and vascular invasion (25.81%, 19.96%, 3.69%, and 26.46%, respectively). In contrast, the group with bilateral and multifocal TC (n = 40) presented the highest percentages of the mentioned features (82.50%, 82.50%, 7.50%, and 77.50%, respectively). All the results were statistically significant (p < 0.0001). Conclusions: Laterality and focality features may be important parameters in the management of TC and should be accurately determined. These features should be combined and a more aggressive treatment method should be selected to reduce the reoperation rate.

The articles featured in this Special Issue of the International Journal of Molecular Sciences, entitled “Recent Advances in Gluten-Related Disorders”, present significant advancements in the understanding of gluten hypersensitivity, offering valuable insights into mechanisms, diagnostics, and potential therapeutic strategies