Identification of Hydroxylated Chlorinated Paraffins in Human Serum and Their Potential Metabolic Pathways.

Short- and medium-chain chlorinated paraffins (SCCPs and MCCPs) are frequently detected in humans. However, information regarding their metabolites is still very limited. Herein, target analysis and halogenation-guided nontarget and suspect screening were conducted on serum samples using UHPLC-Orbitrap-HRMS.

Visible-Light-Driven Catalytic Dehalogenation of Trichloroacetic Acid and α-Halocarbonyl Compounds: Multiple Roles of Copper.

Herein, we report the reaction development and mechanistic studies of visible-light-driven Cu-catalyzed dechlorination of trichloroacetic acid for the highly selective formation of monochloroacetic acid. Visible-light-driven transition metal catalysis via an inner-sphere pathway features the dual roles of transition metal species in photoexcitation and substrate activation steps, and a detailed mechanistic understanding of their roles is crucial for the further development of light-driven catalysis. This catalytic method, which features environmentally desired ascorbic acid as the hydrogen atom source and water/ethanol as the solvent, can be further applied to the dehalogenation of a variety of halocarboxylic acids and amides.

Communicating COVID-19 vaccine information to Chinese communities in the UK: a qualitative study of their knowledge, information sources and trust.

Introduction: In late 2020, the COVID-19 vaccine acceptance rates of Chinese people living in the UK were estimated between 52% and 57%, significantly lower than that of the general population (76%). This disparity formed a primary motivation for this study which explored Chinese communities' overall understanding of and attitude towards the COVID-19 vaccines, the sources of information about the vaccines and levels of (dis)trust in these sources.

Methods: 29 focus groups with 154 participants from UK-based Chinese communities of varied sociodemographic backgrounds were conducted between March and November 2021.

The efficacy of anti-angiogenic drugs in gastric-type endocervical adenocarcinoma: A retrospective study.

Objectives: Gastric-type endocervical adenocarcinoma (GEA) is a rare malignant tumor that is not associated with high-risk HPV infection, known for its high invasiveness and resistance to current treatments. This study assessed the effectiveness of anti-angiogenic regimens in real-world GEA patients.

Methods: Patients with GEA were enrolled between February 2012 and March 2023, and their clinicopathological characteristics were collected from their medical records.

Real-world data from patients with gastric-type mucinous carcinoma of the cervix: a multicenter, retrospective study.

Background: We herein retrospectively analyzed the clinicopathologic features from a large cohort of GAS patients to provide real-world evidence for optimizing the diagnosis and treatment.

Research Design And Methods: One hundred and fifty-seven GAS patients from three hospitals were recruited for analysis. We extracted clinical and pathologic information from patient medical records and performed regular follow-up.

The Contribution and Perspectives of Proteomics to Epithelial Ovarian Cancer.

Epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy which mainly consists of serous, mucinous, clear cell, and endometrioid subtypes. Due to the lack of classic symptoms at an early stage, EOC usually presented as advanced tumors with local and/or distant metastasis. Although a large portion of EOC was initially platinum-sensitive, most patients would acquire resistance to common chemotherapeutic agents.

Rumen Bacterial Community Responses to Three DHA Supplements: A Comparative In Vitro Study.

The aim of this study was to investigate the loss of docosahexaenoic acid (DHA) from three supplements (two powders and one oil) after digestion (rumen and gastrointestinal) and their effects on the number and composition of rumen bacteria, using an in vitro approach. The concentration of supplements has a significant impact on the DHA loss rate and algal oil exhibited the highest rate of loss, but bioaccessibility was not significantly different from the other supplements. 16S rRNA sequencing showed that three DHA supplements altered the bacterial composition of in vitro batch cultures inoculated with rumen microorganisms from cows, and caused changes in the relative abundance of important bacterial phyla, families, and genera.

CO-driven ion exchange for ammonium recovery from source-separated urine.

Nitrogen recovery from urine and CO utilization are both vital for achieving a circular economy and mitigating climate change. Divided engineering solutions have been proposed to address either problem, but there is still a lack of integrated technologies to simultaneously tackle the two tasks. We demonstrated CO-driven ion exchange for nitrogen recovery (CIXNR) from urine and evaluated the process in Malawi.

P-Dopant with Spherical Anion for Stable n-i-p Perovskite Solar Cells.

Li-TFSI/t-BP is the most widely utilized p-dopant for hole-transporting materials (HTMs) in state-of-the-art perovskite solar cells (PSCs). However, its nonuniformity of doping, along with the hygroscopicity and migration of dopants, results in the devices exhibiting limited stability and performance. This study reports on the utilization of a spherical anion derived from the p-dopant, regulated by its radius and shape, as an alternative to the linear TFSI anion.

Enhancing clinical decision-making in closed pelvic fractures with machine learning models.

Closed pelvic fractures can lead to severe complications, including hemodynamic instability (HI) and mortality. Accurate prediction of these risks is crucial for effective clinical management. This study aimed to utilize various machine learning (ML) algorithms to predict HI and death in patients with closed pelvic fractures and identify relevant risk factors.

Management and Outcomes of Anterior Hip Dislocation with Multiple Comminuted Fractures from a Vehicular Crush Injury in a 44-Year-Old Woman.

BACKGROUND Anterior hip dislocation is a rare injury that often occurs following high-energy road traffic accidents and accounts for approximately 7% to 13% of all hip dislocations. This report describes the presentation, diagnosis, and treatment of a 44-year-old woman with anterior hip dislocation and multiple comminuted fractures due to a vehicular crush injury. A PubMed search showed no similar cases have been reported in the English literature.

Interpreting Step-Drawdown Pumping Test Undergoing Confined-Unconfined Conversion with Well Loss.

The step-drawdown pumping test often experiences a transition from confined to unconfined conditions due to the continuously increasing pumping rate. However, the current well hydraulics model has not accurately interpreted this phenomenon. In this study, we developed an analytical solution to address the confined-unconfined conversion in step-drawdown pumping tests based on Girinskii's potential and superposition theory.

Cytological Effects of Cadmium Poisoning and the Protective Effect of Quercetin: A Mechanism Exploration based on the Testicular Lamina Propria.

This comprehensive study delved into the detrimental effects of cadmium (Cd), a toxic heavy metal, on the testicular lamina propria (LP), a key player in spermatogenesis, and the maintenance of testicular stem cell niches. Utilizing transmission electron microscopy, immunohistochemistry, and double-labeling immunofluorescence, the research characterized the structural and cellular components of mouse testicular LP under Cd exposure and investigated the protective effects of quercetin. The findings illustrated that Cd exposure results in significant morphological and cellular modifications within the LP, including the apoptosis of peritubular myoid cells, an upsurge in CD34+ stromal cells displaying anti-apoptotic behaviors, and an excessive production of collagen Type I fibers and extracellular matrix.

Efficacy of PD-1/PD-L1 blockade immunotherapy in recurrent/metastatic high-grade neuroendocrine carcinoma of the cervix: A retrospective study.

Although high-grade neuroendocrine carcinoma of the cervix (HGNECC) accounts for less than 1 % of all cervical cancers, it exhibits marked aggressiveness and resistance to radiation and chemotherapy. We retrospectively investigated the efficacy of immunotherapy for recurrent/metastatic HGNECC in a real-world setting. From September 2016 to December 2022, a total of 29 patients with HGNECC accepted PD-1/PD-L1 inhibitors; of these, six cases (20.

Identification and Analysis of the Mechanism of Stem Mechanical Strength Enhancement for Maize Inbred Lines QY1.

Enhancing stalk strength is a crucial strategy to reduce lodging. We identified a maize inbred line, QY1, with superior stalk mechanical strength. Comprehensive analyses of the microstructure, cell wall composition, and transcriptome of QY1 were performed to elucidate the underlying factors contributing to its increased strength.

Radiotherapy leads to improved overall survival in patients undergoing resection for Undifferentiated pleomorphic sarcoma.

Background And Objectives: Undifferentiated pleomorphic sarcoma (UPS) is a frequent subtype within the heterogeneous group of soft tissue sarcomas (STS). The use of radiotherapy (RT) has become an important component of a multimodal approach to treating STS. Key studies have demonstrated that the addition of RT improves rates of local control in STS, though the effect on overall survival (OS) is less clear.