Thyrostats increase water retention and absorption in animals; this property is abused in the rearing of meat producing animals to inflate carcase weight in a bid to increase the profits of producers. As such meat is of poor quality, and due to the potential carcinogenic and teratogenic properties of thyrostats, their use has been banned in the EU since 1981. The difficulties encountered in the analysis of these compounds, due to their small size, high polarity, and the endogenous nature of some analytes (2-thiouracil, 4-thiouracil, 5-methylthiouracil), has limited the sensitivity of methods in difficult matrices such as urine, with minimum method performance requirements (MMPR) of 10 µg L-1 for six analytes (2-thiouracil, 5-methylthiouracil, propylthiouracil, tapazole/methimazole, benzylthiouracil and mercaptobenzimidazole). This work describes the development and alternative factorial validation, to the criteria as set out in CIR (EU) 2021/808, of a rapid and sensitive method for the quantitative confirmation of 11 thyrostats, including the endogenous analytes, using an extracted solvent standard calibration curve and post column infusion of NH4F, with decision limit (CCα) values ranging from 0.29 to 0.51 µg L-1.

Background and Objectives: Subcortical bone cysts at the tibial attachment of the medial meniscus posterior root (MMPR) may reflect chronic degenerative changes; however, their clinical significance in medial meniscus posterior root tear (MMPRT) remains unclear. This study assessed whether bone cysts are associated with symptom duration and whether their presence influences healing status or medial meniscus extrusion (MME) after transtibial pullout repair (TPR). Materials and Methods: Seventy-four consecutive patients who underwent arthroscopic TPR for MMPRT between January 2022 and December 2024 were retrospectively reviewed. After applying exclusion criteria, 50 patients were included and divided into cyst-positive (n = 20) and cyst-negative (n = 30) groups based on preoperative MRI findings. Clinical outcomes, MME, and second-look arthroscopic healing status at 6 months postoperatively were compared between groups. Multivariable linear regression analysis was performed to identify independent predictors of postoperative MME. Results: The cyst-positive group had significantly longer symptom duration than the cyst-negative group (13.8 ± 3.0 vs. 8.8 ± 2.8 weeks, p < 0.001) and demonstrated higher grades of MMPR degeneration (p < 0.05). Complete healing was observed in 60.0% of patients in each group, and no failed healing cases were noted. Postoperative MME at 6 months was comparable between groups (3.8 ± 0.8 vs. 3.8 ± 1.0 mm). Multivariable regression analysis identified baseline MME as the strongest independent predictor of postoperative MME (β = 0.67, p < 0.001), whereas bone cyst presence was not independently associated with postoperative extrusion. Conclusions: Subcortical bone cysts at the MMPR attachment are associated with longer symptom duration and more advanced root degeneration. However, their presence was not significantly associated with healing status or postoperative MME after MMPRT repair. These findings suggest that bone cyst formation may be associated with chronic degenerative changes at the root attachment, but should not discourage surgeons from performing root repair.

The role of late-term maternal inflammation in the pathogenesis of postpartum depression is a subject of increasing research focus. In this prospective cohort study of 563 demographically and clinically diverse participants from New York City, we examined associations between third-trimester plasma levels of four inflammatory markers - IL-1β, IL-6, IL-17A, and C-reactive protein (CRP) - and depressive symptoms 4-8 weeks postpartum, measured using the Edinburgh Postnatal Depression Scale (EPDS). EPDS scores were modeled continuously, categorically (EPDS ≥ 10), and across empirically derived symptom domains (anhedonia, anxiety, depression). Across all analytic models, we found no significant associations between plasma inflammatory markers and postpartum depressive symptoms after adjusting for clinical, demographic, and technical covariates. Our results do not support third-trimester inflammatory markers as standalone biomarkers of postpartum depression risk, but highlight the need to incorporate longitudinal immune profiling, multimodal biomarkers, and integrative psychosocial models to better elucidate mechanisms and improve prediction and prevention of postpartum depression.

The diversification of Hymenoptera is a transformative evolutionary story in insect evolution, fundamentally tied to major global events like the Mid-Mesozoic Parasitoid Revolution (MMPR) and the Angiosperm Terrestrial Revolution (ATR). The recent paper by Jouault et al.1 provided a first large-scale quantification of Hymenoptera diversification using fossil occurrence data through two complementary Bayesian methods: PyRate, which models origination and extinction dynamics, and the Bayesian Brownian Bridge (BBB), which estimates clade origination and extinction ages2,3,4,5. In a critique, Boudinot et al.6 raise concerns that our analyses overfit a sparse fossil record, misinterpret extinction signals, and overlook the putative absence of a Permian Hymenoptera ghost lineage. However, these concerns were not accompanied by statistical tests. Moreover, the original methodological papers include extensive simulations and empirical evaluations explicitly designed to assess the robustness and behavior of these models under varying fossil recovery scenarios; we direct readers to those studies for full details2,3,4,5,7. Here, we clarify our methodology and counter these claims. Far from undermining our work, the critique merely reiterates and highlights the interpretive caution that underpins our study.

The medial meniscus posterior root (MMPR) provides biomechanical support to the medial compartment of the knee. An MMPR tear confers significantly increased peak contact pressures in the medial compartment. MMPR tears (MMPRTs), when unrecognized or when treated nonoperatively, often result in rapid progression of osteoarthritis. Once described as a silent epidemic, awareness of the clinical presentation and common imaging findings associated with MMPRTs has improved recognition of MMPRTs by orthopedic surgeons. The majority of patients with MMPRTs are candidates for repair of the MMPR whenever possible. In patients with early osteoarthritis, coronal knee malalignment, advanced age, or irreparable tear patterns, the indications for management are not well defined. Various techniques for repair for the repair of MMPR have been described, including the arthroscopic approach, suture configurations, and different implant properties. In addition to the repair of the MMPR, a novel technique aiming to centralize the meniscus can decrease meniscal extrusion, which is often not reliably addressed with MMPR repair alone. While MMPRTs remain a challenging injury for patients, increased recognition of these tears allows for improved decision-making regarding management of these injuries. Surgical management techniques continue to be refined and are aimed at restoring native anatomy of the medial meniscus to the extent possible, with the ultimate goal of prolonging the life of the native knee and facilitating a return to satisfactory function.