Dispersal distances from splash-cup plants depend on the cup's angle and contents.

Splash-cup plants disperse propagules via raindrops striking cup-shaped fruiting bodies. The seeds are ejected at velocities up to five times the impact speed of the raindrop and are dispersed up to 1 m from the parent plant. Here, we examine the effects of cup angles and the presence of seed mimics to understand the dynamics of this unique method of dispersal. Our findings demonstrate that: (i) cup angles that launched seeds the furthest ranged from approximately 30° to 50°, matching the range of angles seen in splash-cup plants. (ii) Seeds travel shorter distances than water droplets alone, and this distance depends on the number of seeds in the cup. (iii) Not all seeds are ejected from initially dry cups, leaving cups with some seeds and some water. (iv) Nearly all seeds are ejected from cups that contain both water and seeds, and those that are ejected travel significantly further than those from dry cups. These results confirm the possibility that the conical shape of splash cup plants may be adapted to maximize dispersal distance and benefit from multiple splash events. Our results also illustrate that future work on these plants should include seeds rather than water droplets alone.

Personality Traits and Depression in Infertile Couples during the COVID-19.

Background/Objectives: The study presented in this paper seeks to examine how personality traits and depressive symptoms, influenced by the fear of COVID-19, interact in infertile couples, who are on the verge of commencing treatments with assisted reproductive technology (ART). The purpose of this observational study was to explore the relationship between personality traits in infertile couples and the occurrence of depressive symptoms, taking into account the mediating effect of COVID-19 fear. Methods: The study sample consisted of 108 women and 71 men (N = 179), all of whom had received an infertility diagnosis and expressed a desire to begin ART treatment at a Sicilian ART center; they were subsequently recruited. The Personality Inventory (PI), Beck Depression Inventory (BDI) and Fear of COVID (FCV-19S) were used for data collection. Results: The FCV-19S demonstrates a significant positive correlation with both neuroticism (r = 0.25, p = 0.001) and agreeableness (r = 0.19, p = 0.012). In addition, there is a significant correlation between FCV-19S (r = 0.67, p < 0.001) and depression symptoms. The mediation analysis reveals that neuroticism is a predictor of fear of COVID-19 (ß = 1.77, p = 0.001) and depression (ß = 0.22, p = 0.002). Additionally, the fear of COVID-19 significantly influences (ß = 0.12, p < 0.001) depression. Conclusions: This study found that neuroticism and agreeableness are positively linked to the fear of COVID-19, and women displayed notable mild mood disorders. Neuroticism predicted both depression and fear of COVID-19, while fear of COVID-19 predicted depressive symptoms. However, the total efficacy of the mediation model was not significant, thereby suggesting that the variables do not fully explain this model.

The legally charged issue of cross-border surrogacy: Current regulatory challenges and future prospects.

The article aims to shed a light on the unique complexities inherent in surrogacy and the legal-ethical challenges that currently exists even in many advanced democracies, which frequently result in uneven and ill-defined standards and processes. The recent proposal of making surrogacy a "universal crime", meant to prevent cross-border surrogacy, i.e. travels by citizens from countries where it is illegal to countries where it is legal, has also been weighed, by exploring the current legislative state of affairs, trends and future horizons. Recent case-law has been analyzed and interpreted, with a close focus on Italian Supreme Court ruling n. 38162, issued on 30th December 2022 and European Court of Human Rights (ECtHR) rulings issued over the past decade. Uncertainty and ill-defined norms and court rulings risk harming the rights of children, surrogate mothers and intended parents. So far, court decisions have somehow filled the legal vacuum, considering that cross-border surrogacy is not specifically regulated in many countries and the status of children born abroad is still controversial. The views and judgments of supranational courts on the issue need to be accounted for when drafting new specific legislation. It is of utmost importance to uphold the rights of children born through surrogacy abroad, whose best interests risk being damaged. Legislative harmonization at the international level is essential to prevent the cross-border surrogacy trend. The "universal crime" draft bills appear to be difficult to enforce and too vague to be credible at the moment.

Current Preoperative Management of Vulvar Squamous Cell Carcinoma: An Overview.

Vulvar carcinoma is a rare cancer affecting the genital tract, constituting 4% of gynecological tumors. Vulvar squamous cell carcinoma (VSCC) is the most common type. Diagnosis relies on biopsy during vulvoscopy, plus imaging such as ultrasonography (USG), magnetic resonance imaging (MRI) and positron emission tomography (PET). This review aims to lay out a thorough overview as to the current preoperative management of VSCC, both in case of vulvar and lymph node involvement. The data research was conducted using the following databases: MEDLINE, EMBASE, Web of Sciences, Scopus, ClinicalTrial.gov, OVID and Cochrane Library from 2010 to 2024. The selection criteria included only original articles. Seventeen studies were assessed for eligibility. A concordance rate of 62.3% for vHSIL and 65.2% for carcinoma at vulvoscopy, with a sensitivity of 98%, specificity of 40%, PPV (Positive Predictive Value) of 37% and NPV (Negative Predictive Value) of 98% in identifying malignant lesions was found. Regarding the reliability of PET for staging and assessing lymph node involvement, a mean SUV (Standardized Uptake Value) for malignant vulvar lesions of 8.4 (range 2.5-14.7) was reported. In the case of MRI, useful for the evaluation of loco-regional infiltration and lymph node involvement, the ratio of the short-to-long-axis diameter and the reader's diagnostic confidence for the presence of lymph node metastasis yielded accuracy of 84.8% and 86.9%, sensitivity of 86.7% and 87.5%, specificity of 81.3% and 86.2%, PPV of 89.7% and 87.5% and NPV of 76.5% and 86.2%, respectively. A long lymph node axis >10 mm and a short diameter >5.8 mm were found to be predictors of malignancy. At USG, instead, the two main characteristics of potentially malignant lymph nodes are cortical thickness and short axis length; the combination of these ultrasound parameters yielded the highest accuracy in distinguishing between negative and positive lymph nodes. Despite the heterogeneity of the included studies and the lack of randomized clinical trials, this review provides a broad overview of the three imaging tools used for the presurgical management of VSCC. Nowadays, although MRI and PET represent the gold standard, ultrasound evaluation is taking on a growing role, as long as it is carried out by expert sonographer. The management of this rare disease should be always performed by a multidisciplinary team in order to precisely stage the tumor and determine the most suitable treatment approach.

miR-125 in Breast Cancer Etiopathogenesis: An Emerging Role as a Biomarker in Differential Diagnosis, Regenerative Medicine, and the Challenges of Personalized Medicine.

Breast Cancer (BC) is one of the most common cancer types worldwide, and it is characterized by a complex etiopathogenesis, resulting in an equally complex classification of subtypes. MicroRNA (miRNA or miR) are small non-coding RNA molecules that have an essential role in gene expression and are significantly linked to tumor development and angiogenesis in different types of cancer. Recently, complex interactions among coding and non-coding RNA have been elucidated, further shedding light on the complexity of the roles these molecules fulfill in cancer formation. In this context, knowledge about the role of miR in BC has significantly improved, highlighting the deregulation of these molecules as additional factors influencing BC occurrence, development and classification. A considerable number of papers has been published over the past few years regarding the role of miR-125 in human pathology in general and in several types of cancer formation in particular. Interestingly, miR-125 family members have been recently linked to BC formation as well, and complex interactions (competing endogenous RNA networks, or ceRNET) between this molecule and target mRNA have been described. In this review, we summarize the state-of-the-art about research on this topic.

Obstetric and Gynecological Admissions and Hospitalizations in an Italian Tertiary-Care Hospital during COVID-19 Pandemic: A Retrospective Analysis According to Restrictive Measures.

BACKGROUND: The national lockdown and the different restrictions applied in 2020 during the COVID-19 pandemic brought several changes to hospitalization procedures. The aim of this study was to evaluate the patterns in access to emergency services and hospitalization in a tertiary-care obstetric and gynecological emergency department (OG-ED) throughout the restrictions applied during 2020. METHODS: A single-center retrospective comparative study on data from January to December 2020 was carried out on the following timeframes: January to February 2020 (before COVID-19 pandemic), March to June 2020 (nationwide lockdown period), July to September 2020 (removal of restrictive measures), October to December 2020 (regional lockdown) and compared to the same periods of 2019. All obstetric and gynecological patients with complete medical data admitted to the OG-ED were included. RESULTS: Overall, 4233 accesses for 2019 and 3652 for 2020 were reported, with a decreasing trend of -13.7%. Between March and June 2020 (nationwide lockdown) and 2019, the overall number of patients attending the OG-ED decreased compared to July-September and October-December differences (Δ -23.5% vs. -3.1% and -5.9%; p = 0.001 respectively) for 2020-2019, but this reduction was not statistically significant when compared to January-February (Δ -23.5% vs. -18.5%; p = 0.356). No significant differences for obstetric patients (Δ -1.8% vs. -1.0% vs. -2.3% and +1.9% respectively; p = 0.883) were noted. Hospitalizations showed a stable trend with an increase between October-December 2019 and 2020 (Δ +4.6%; p = 0.001 vs. January-February (+2.4%) and March-June (+2.6%) 2019-2020), mainly related to regional lockdowns. CONCLUSIONS: In contrast to available national studies, in our institution, the overall rate of OG-ED admissions was slightly reduced with a similar trend of decrease even before COVID-19, with an increase in admissions for serious issues, despite expectations that the suspension of elective admissions and outpatient services would have led to an increase in non-urgent hospitalizations during the COVID-19 lockdown period.