A novel AIE fluorescent probe for the detection and imaging of hydrogen peroxide in living tumor cells and in vivo.

Hydrogen peroxide (H2O2), a key reactive oxygen species (ROS), plays crucial roles in redox signaling pathways and immune responses associated with cell proliferation, differentiation, migration, and disease progression. The selective monitoring of overproduced H2O2 is important for understanding the diagnosis and pathogenesis of diseases such as cardiovascular disease, cancers, diabetes, Parkinson's disease, Alzheimer's disease, and inflammation. In this paper, an AIE fluorescent probe BQM-H2O2 was developed by connecting phenyl borate with the fluorophore BQM-PNH for selective detection of H2O2. In the presence of H2O2 at fw = 99% (pH = 7.4, 1% DMSO), the probe BQM-H2O2 could generate strong fluorescent signals due to the oxidation of the borate ester. The probe exhibited high selectivity and a low detection limit toward H2O2 with the calculated LOD of 112.6 nM. Importantly, it was employed in the detection of exogenous and endogenous hydrogen peroxide in 4T1 cells with low cytotoxicity. This probe has also been successfully applied to imaging of H2O2 in Blab/c mice bearing 4T1 graft tumors.

Exploring Preoperative Experiences and Informational Needs Among Chinese School-Age Children Undergoing Elective Surgery: A Qualitative Study.

AIM: To understand preoperative experiences and information needs of Chinese school-aged children undergoing elective surgery to design standardized preoperative education programs to alleviate preoperative anxiety. METHODS: Semi-structured interviews combined with drawing, writing, and telling techniques were conducted in 12 children. The paintings were interpreted alongside children's verbal expressions. All data were analyzed using thematic analysis. RESULTS: Three themes emerged: Origins of Surgical Knowledge: Proximity-based knowledge, media exposure, past personal medical experiences, ward-mate interactions, healthcare staff education; Pre-Surgery Experiences: Anticipation of pain, post-op sensations and impact on life, fantasizing about the operation, being aware of risks, demonstrating psychological resilience, being curious about anesthesia experience, enjoying a break; Preoperative Informational Needs: 55 identified. CONCLUSIONS: Lack of standardized preoperative education creates a gap between children's knowledge and actual surgical experiences. Developing preoperative education tailored to individualized informational needs and developmental level helps fill their gaps, alleviate preoperative anxiety and improve health outcomes.

Coping strategies and interventions to alleviate moral distress among pediatric ICU nurses: A scoping review.

BACKGROUNDS: Moral distress significantly affects pediatric ICU nurses, leading to nurse burnout, increased turnover and reducing patient care quality. Despite its importance, there's a notable gap in knowledge on how to manage it effectively. AIMS: This review aimed to systematically identify and analyze coping strategies and interventions targeting moral distress among pediatric nurses in ICU, uncovering research gap and future studies directions. METHODS: A scoping review was conducted followed framework by Levac, Colquhoun, and O'Brien and Arksey and O'Malley. Searches were performed in 11 electrical databases, like PubMed and China Biology Medicine disc, within a timeframe of the database construction to November 2023, and performed literature screening and data extraction. RESULTS: Sixteen articles were ultimately included. Coping strategies adopted by pediatric ICUs nurses can be categorized into adaptive and maladaptive strategies, with the latter including passive acceptance, taking leave, and drinking, while the former involve pursuing interests outside of work, reflection and philosophizing, and communication. Nine articles described and evaluated the effectiveness of interventions for moral distress, categorizing them into individual and institutional levels. Individual-level interventions include Interprofessional Perspective-Taking, the PICU Resiliency Bundle, Ethics Education/Skills, and the Center for Caring. Institutional-level interventions encompasses Comprehensive Care Round, Goals of Care Conversations, Pediatric Ethics and Communication Excellence Rounds, Nursing Ethics Council, and Medical Ethical Decision-Making, though not all were effective in alleviating moral distress. CONCLUSIONS: Nurses often use self-adjustment strategies for moral distress, institutional ethical support focusing on enhancing nurses' moral resilience, promoting reflective thinking and improving communication remains crucial. Various interventions for moral distress are currently available, but nurse engagement is low and their effectiveness remained to be verified. Future studies should explore what aids or hinders these interventions. There's also a need for large, multicenter trials and ongoing evaluations to create effective support systems for pediatric ICU nurses.

Dynamic Analysis of Chlorophyll a Fluorescence in Response to Time-Variant Excitations during Strong Actinic Illumination and Application in Probing Plant Water Loss.

Magnitude measurement of chlorophyll a fluorescence (ChlF) involves challenges, and dynamic responses to variable excitations may offer an alternative. In this research, ChlF was measured during strong actinic light by using a pseudo-random binary sequence as a time-variant multiple-frequency illumination excitation. The responses were observed in the time domain but were primarily analyzed in the frequency domain in terms of amplitude gain variations. The excitation amplitude was varied, and moisture loss was used to induce changes in the plant samples for further analysis. The results show that when nonphotochemical quenching (NPQ) activities start, the amplitude of ChlF responses vary, making the ChlF responses to illumination excitations nonlinear and nonstationary. NPQ influences the ChlF responses in low frequencies, most notably below 0.03 rad/s. The low-frequency gain is linearly correlated with NPQ and can thus be used as a reference to compensate for the variations in ChlF measurements. The high-frequency amplitude gain showed a stronger correlation with moisture loss after correction with the low-frequency gain. This work demonstrates the usefulness of dynamic characteristics in broadening the applications of ChlF measurements in plant analysis and offers a way to mitigate variabilities in ChlF measurements during strong actinic illumination.

Food addiction and its impact on weight status in children and adolescents: The mediating role of responsive eating pattern.

AIMS: This research explores the relationships between food addiction (FA), eating behaviours, and weight status in school-aged children and adolescents, aiming to understand how FA influences weight. METHODS: By using a cross-sectional design, 426 healthy children and their parents were enroled in Eastern China. FA was assessed using the Chinese version of the Dimensional Yale Food Addiction Scale for Children 2.0 (dYFAS-C 2.0), while eating patterns were identified using latent profile analysis (LPA) derived from the Children's Eating Behaviour Questionnaire (CEBQ). Weight status was indicated by Body Mass Index Z Score (BMIZ) and waist-to-height ratio (WHtR). The associations among FA, eating patterns, and weight status were explored using structural equation modelling (SEM). RESULTS: Two eating patterns, the Responsive and the Controlled Eating Patterns, were identified. The Responsive Eating Pattern was characterized by high food responsiveness, enjoyment of food, emotional eating, fast eating, low satiety responsiveness, and food fussiness and was associated with FA and weight status (p < 0.001). The SEM results showed the Responsive Eating Pattern partially mediated the relationship between FA and weight status, with a mediation effect of 1.183 (95% CI [0.784, 1.629]) for BMIZ and 0.043 (95% CI [0.025, 0.063]) for WHtR. CONCLUSION: Increased FA is associated with a higher weight status through a specific eating behaviour pattern characterized by high responsiveness to food, emotional and rapid eating habits, and low satiety. The findings suggest that targeted interventions should take these eating behaviour patterns into account to reduce the impact of FA on weight status among children and adolescents.

A novel fluorescent probe for rapid detection of sulfatase in vitro and in living cells.

Sulfatase participates in a variety of physiological processes in organisms including hormone regulation, cell signaling, and bacterial pathogenesis. Current sulfatase fluorescent probes can be used to track sulfate esterase overexpression in cancer cells for diagnostic purposes and to understand the pathological activity of sulfate esterase. However, some sulfatase fluorescent probes based on the hydrolysis of the sulfate bond were easily disturbed by the catalytic activity of sulfatase. Herein, we developed the fluorescent probe BQM-NH2 for sulfatase detection, which was based on the quinoline-malononitrile. The probe BQM-NH2 showed a fast response to sulfatase within 1 min and satisfactory sensitivity with a calculated LOD of 1.73 U/L. Importantly, it was successfully used to monitor endogenous sulfate in tumor cells, indicating BQM-NH2 has the potential to monitor sulfatase under physiological and pathological conditions.

Sustainable cellulose-based multifunctional material for electromagnetic shielding, flame retardancy and antibacterial.

Biomass-based multifunctional electromagnetic shielding materials have attracted extensive interest in academia and industry due to the sustainability of biomass and the environmental adaptability of multifunctional materials. After removing lignin and hemicellulose wood become a porous substrate with aligned cellulose, which is a good platform for building cellulose-based materials. In this work, a cellulose composite with sandwich-like structure was constructed by in-situ polymerization of aniline on delignified wood and coating a PDMS/CNT layer. Benefiting from the natural porous hierarchical structure and the constructed multilayer continuous conductive network, the PDMS/CNT/PANI WA exhibits excellent electrical conductivity (18.6 S/m) and electromagnetic shielding performance (shielding efficiency value of 26 dB at the X band (8.2-12.4 GHz)). The synergistic effect of PANI and CNT endowed the material with excellent flame retardancy (HRR, THR and HRC decreased by 84 %, 53.4 % and 83.3 %) and significant antibacterial activity. Moreover, PDMS imparts a water contact angle of 105° to the material, which acts as a protective layer, further improves the durability of the material. This work provides a new strategy for developing sustainable and multifunctional electromagnetic shielding materials.

Intervention strategies for white noise alleviating procedural pain in newborns: A systematic review.

AIMS AND OBJECTIVE: To systematically evaluate the current intervention strategies of white noise alleviating procedural pain in newborns. METHODS: This review was conducted following the PRISMA guideline. Seventeen databases National Guideline Clearinghouse, up to date, Clinical Evidence, BMJ best practice, Cochrane library, OVID, PubMed, Medline, EMBASE, Web of Science, CHINHAL, Medlive, China Biology Medicine disc, Chinese Clinical Trial Registry, China National Knowledge Infrastructure, China Science and Technology Journal Database, Wanfang Data Knowledge Service Platform were employed, and the studies about pain-relieving with white noise in newborns published before June 2022 was included. Quality of studies was evaluated by using the Cochrane Handbook for Systematic Reviews of Interventions. RESULTS: 18 studies were included, with sample sizes ranging from 32-296 cases. Intervention indices included duration, distance, volume, music type and outcome measure. Duration varies from study to study, from 5 min before to 5 min after the procedures. The distance was controlled at 10-60 cm, volume was controlled at 45-60 dB and music type was selected from Orhan Osman's album "Kolic" in most studies. Outcome measures included physiological indicators, neurophysiological indicators, behavioural indicators and pain score. Differences in duration leading to different white noise effects was found, but no studies have shown whether there is an effect of different volume, distance or music type. CONCLUSIONS: Based on this review, we recommend the following intervention strategies: the duration is set from 1 min before to 3 min after the procedures, the distance is decided according to the actual clinical situation, the volume is controlled at 45-55 dB (55 dB is optimal), the music type is selected to simulate intrauterine sounds, and outcome measures can choose physiological indicators, neurophysiological indictors, behavioural indicators and pain score depending on specific department and population. It is important to further explore the best intervention strategies. RELEVANCE TO CLINICAL PRACTICE: In addition to providing a set of intervention strategies, this review could be used as evidence for relieving procedural pain in newborns. PATIENT OR PUBLIC CONTRIBUTION: No Patient or Public Contribution. Data were obtained from others' literature.

In situ growth of UiO-66-NH2 in wood-derived cellulose for iodine adsorption.

The capture of radioactive iodine is an inevitable requirement in nuclear industry for environmental protection. Metal-organic frameworks (MOFs) are a new generation of sorbents that have wide applications for iodine adsorption and recovery. Although the loading of MOFs on wood can avoid the drawbacks of the powder form of MOFs in implementation, the dense structure of wood results in the lower loading, even after delignification, which limits the adsorption capacity. Herein, a hierarchically porous UiO-66-NH2 @WCA composite was fabricated by in-situ synthesis of UiO-66-NH2 in wood-derived cellulose aerogel (WCA) that was further removed hemicellulose from delignified wood. UiO-66-NH2 @WCA exhibited a high loading (36 wt%) of UiO-66-NH2 crystals and a high adsorption capacity of 704 mg/g for iodine vapor and 248 mg/g for iodine aqueous solution. The adsorption behavior in iodine aqueous solution was well predicted by the Freundlich isotherm and pseudo-second-order kinetic model. The adsorption capacity of UiO-66-NH2 @WCA was highest in solution when the pH was 6, while the ionic strength had little effect. The hydroxyl groups on the WCA matrix had a charge transfer effect with iodine, providing additional sites for iodine capture. Furthermore, a packed column system was applied to demonstrate the excellent recyclability and potential for practical application.

Individualize management for advanced breast cancer with pyrotinib-based anti-HER2 therapy: a case report.

Background: We report a case of metastatic human epidermal growth factor receptor-2 (HER2) positive breast cancer who achieved encouraging clinical benefits across multiple pyrotinib-based anti-HER2 therapies. Case Description: A 33-year-old woman was diagnosed with hormone receptor (HR) positive, HER2-positive breast cancer in June 2018, and did not receive adjuvant radiotherapy, chemotherapy, or anti-HER2 targeted therapy post-breast conserving surgery. By May 2020, she developed recurrence of the left breast mass with metastases in liver, bone and lymph nodes. She then received pyrotinib plus trastuzumab and nab-paclitaxel as first-line therapy. Both the left breast mass and liver metastases showed noticeable improvement, with the disease evaluated as partial response (PR). Despite this promising result, the patient developed brain metastases after first-line treatment. A combination regimen of pyrotinib retention plus inetetamab and vinorelbine were administered as second-line anti-HER2 therapy, and the brain metastases visibly shrunk, leading to PR, with the extracranial lesions remaining stable. Ultimately, due to brain lesions progression, the treatment was transitioned to trastuzumab deruxtecan. We applied next generation sequencing (NGS) to illustrate the efficacy of anti-HER2 therapy and minimal residual disease (MRD) to detect the disease status. Conclusions: Pyrotinib is a promising antineoplastic agent for HER2-positive advanced breast cancer patients. Under the guidance of precision medicine, it is encouraged to utilize novel diagnostic and therapeutic methods to manage advanced breast cancer patients.

Muscle injuries and recovery training in college sprinters / Lesões musculares e treinamento de recuperação em velocistas universitários / Lesiones musculares y entrenamiento de recuperación en velocistas universitarios

ABSTRACT Introduction The sprint is extremely explosive, and inadequate training methods can cause irreversible muscle damage. Objective Explore the types of sports injuries, the main sites, the main factors affecting the results of physical training, and the main factors affecting recovery from muscle injuries in college and university sprinters, and propose preventive measures. Methods Taking 174 college sprinters as the research object, we analyzed the conditions related to muscle injury and physical training of sprinters, using field investigation, questionnaire survey, and mathematical statistics. The types of sports injuries, the main sites, the main factors affecting the results of physical training, and the main factors affecting college sprinters' recovery from muscle injury were investigated. Results Among the 174 athletes surveyed, 47.7% had sports injuries of different degrees, and 52.3% had no sports injuries. Different physical training methods, training time, training levels, and slack fatigue training can affect physical training results. Conclusion College sprinters should improve their safety awareness, give importance to preparatory activities and flexibility exercises, optimize strength training programs, and use physical and exercise therapy to promote recovery from muscle injuries. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução O velocismo é um esporte extremamente explosivo, e métodos de treinamento inadequados podem causar danos musculares irreversíveis. Objetivo Explorar os tipos de lesões esportivas, os principais locais, os principais fatores que afetam os resultados do treinamento físico e os principais fatores que afetam a recuperação das lesões musculares dos velocistas em faculdades e universidades, propondo medidas preventivas. Métodos Tomando 174 velocistas universitários como objeto de pesquisa, analisou-se as condições relacionadas à lesão muscular e ao treinamento físico dos velocistas, utilizando investigação de campo, levantamento de questionários e estatísticas matemáticas. Pesquisou-se os tipos de lesão esportiva, os principais locais, os principais fatores que afetam os resultados do treinamento físico e os principais fatores que afetam a recuperação da lesão muscular dos velocistas universitários. Resultados Entre os 174 atletas pesquisados, 47,7% apresentaram lesões esportivas de diferentes graus, e 52,3% não tiveram lesões esportivas. Diferentes métodos de treinamento físico, tempo de treinamento, níveis de treinamento e treinamento negligente de fadiga podem afetar os resultados do treinamento físico. Conclusão Os velocistas universitários devem melhorar sua consciência de segurança, dar importância às atividades preparatórias e aos exercícios de flexibilização, otimizar o programa de treinamento de força, usar a fisioterapia e a terapia de exercícios para promover a recuperação de lesões musculares. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción El sprint es un deporte extremadamente explosivo, y métodos de entrenamiento inadecuados pueden causar daños musculares irreversibles. Objetivo Explorar los tipos de lesiones deportivas, las principales localizaciones, los principales factores que afectan a los resultados del entrenamiento físico y los principales factores que afectan a la recuperación de las lesiones musculares en velocistas colegiales y universitarios, proponiendo medidas preventivas. Métodos Tomando como objeto de investigación 174 velocistas universitarios, se analizaron las condiciones relacionadas con las lesiones musculares y el entrenamiento físico de los velocistas mediante investigación de campo, encuesta por cuestionario y estadística matemática. Se investigaron los tipos de lesiones deportivas, las principales localizaciones, los principales factores que afectan a los resultados del entrenamiento físico y los principales factores que afectan a la recuperación de las lesiones musculares de los velocistas universitarios. Resultados De los 174 deportistas encuestados, el 47,7% tenía lesiones deportivas de distinto grado y el 52,3% no tenía lesiones deportivas. Los diferentes métodos de entrenamiento físico, el tiempo de entrenamiento, los niveles de entrenamiento y el entrenamiento descuidado por fatiga pueden afectar a los resultados del entrenamiento físico. Conclusión Los velocistas universitarios deben mejorar su conciencia de seguridad, dar importancia a las actividades preparatorias y a los ejercicios de flexibilidad, optimizar el programa de entrenamiento de fuerza, utilizar la fisioterapia y la terapia de ejercicio para promover la recuperación de las lesiones musculares. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Establishment of a PBMC-derived induced pluripotent stem cell (NJUCMi001-A) from a patient with LAMA2-related congenital muscular dystrophy (MDC1A) carrying frameshift deletion c.3367delA in LAMA2 gene.

LAMA2-related congenital muscular dystrophy (MDC1A), the most commonly recognized type of congenital muscular dystrophies, is a severe neonatal onset muscle disease caused by recessive mutations in the LAMA2 gene. Here, we established an induced pluripotent stem cell line from a MDC1A patient carrying a frameshift deletion c.3367delA in LAMA2 gene. The iPSC line expressed pluripotency markers, retained normal karyotype, showed capability of differentiating into three germ layers. The iPSC line will help to further elucidate the pathogenic mechanisms of LAMA2 mutation, and benefit treatment for congenital muscular dystrophies in the future.

Scalable Production of Biodegradable, Recyclable, Sustainable Cellulose-Mineral Foams via Coordination Interaction Assisted Ambient Drying.

Heavy reliance on petrochemical-based plastic foams in both industry and society has led to severe plastic pollution (the so-called "white pollution"). In this work, we develop a biodegradable, recyclable, and sustainable cellulose/bentonite (Cel/BT) foam material directly from resource-abundant natural materials (i.e., lignocellulosic biomass and minerals) via ambient drying. The strong resistance to the capillary force-driven structural collapse of the preformed three-dimensional (3D) network during the ambient drying process can be ascribed to the purpose-designed cellulose-bentonite coordination interaction, which provides a practical way for the locally scalable production of foam materials with designed shapes without complex processing and intensive energy consumption. Benefiting from the strong cellulose-bentonite coordination interaction, the Cel/BT foam material demonstrates high mechanical strength and outstanding thermal stability, outperforming commercial plastic polystyrene foam. Furthermore, the Cel/BT foam presents environmental impacts much lower than those of petrochemical-based plastic foams as it can be 100% recycled in a closed-loop recycling process and easily biodegraded in the environment (natural cellulose goes back to the carbon cycle, and bentonite minerals return to the geological cycle). This study demonstrates an energy-efficient ambient drying approach for the local and scalable production of an all-natural cellulose/bentonite foam for sustainable packaging, buildings, and beyond, presenting great potential in response to "white pollution" and resource shortage.

Cardiac Safety in Breast Cancer Patients Receiving Pegylated Liposome Doxorubicin Sequential Anti-HER2 Monoclonal Antibody Therapy.

Background: Cardiotoxicity associated with the sequential use of anthracyclines followed by trastuzumab is common in adjuvant therapy of patients with HER2-positive early breast cancer (eBC). However, the cardiac safety of trastuzumab concurrent with pegylated liposomal doxorubicin (PLD) is relatively less studied. Method: Clinical data of patients with HER2-positive eBC treated with PLD and cyclophosphamide (PLD-C) followed by taxanes plus trastuzumab ± pertuzumab (TH or TPH) who then completed standard anti-HER2 treatment for 12 months from June 2012 to August 2021 were retrospectively collected. The primary endpoints were clinical and subclinical cardiotoxicity. Result: In total, 70 eligible patients were enrolled. Among them, 55 patients (78.6%) received PLD-C → TH and 15 patients (21.4%) received PLD-C → TPH. The median follow-up time was 41.8 months. Until August 2021, only two patients had recurrent or metastatic diseases, with 2-year and 5-year disease-free survivals of 98.6% and 96.8%, respectively. Clinical cardiotoxicity occurred in six patients (8.6%), and all of them had an absolute decline of ≥16% from baseline left ventricular ejection fraction (LVEF) but not below the lower limit of normal (LLN = 50%). Subclinical cardiotoxicity events occurred in 17 patients (24.3%), and all of them had absolute declines of ≥10% and <16% from baseline LVEF but not below the LLN. No patients were interrupted from treatment, and all patients completed anti-HER2 treatment for 12 months. The sharpest decrease in LVEF was observed at 18 months after the start of PLD treatment. The cumulative incidences of clinical and subclinical cardiotoxicity were 9.8% and 28.3%, respectively. In the univariate analysis, body mass index, age, left chest wall radiotherapy, and ongoing cardiovascular risk factors were not significantly associated with clinical or subclinical cardiotoxicity (p > 0.05). No patients had congestive heart failure or death caused by PLD or anti-HER2 treatment. Conclusion: The sequential use of PLD and trastuzumab showed a lower incidence of clinical cardiotoxicity, presented as asymptomatic decreased LVEF, compared with the results obtained in previous clinical studies using conventional anthracycline, taxanes and trastuzumab. The study regimen demonstrated good cardiac tolerance and is an alternative strategy for cardioprotection in patients with HER2-positive eBC.

Highly selective fluorescent probe based on AIE for identifying cysteine/homocysteine.

Cysteine (Cys) and homocysteine (Hcy) are involved in maintaining homeostasis in the body and are relevant to various diseases. While the level of Cys and Hcy is much lower than GSH in the living system, which leads to a major challenge to selectively identify Cys/Hcy in the presence of large amounts of GSH. In this paper, an AIE fluorescent probe SQM-NBD was obtained by connecting NBD to the hydroxyl group of the fluorophore SQM-OH for selective detection of Cys/Hcy. Probe SQM-NBD had no fluorescence itself. But, under the disturbance of GSH, the fluorescence signal of probe SQM-NBD could be turned on by Cys/Hcy. The study of the response mechanism showed that probe SQM-NBD could release both SQM-OH and Cys/Hcy-NBD after reacting with Cys/Hcy. While Cys/Hcy continued to quench the fluorescence of SQM-OH through the combination of Michael addition and the ion rich environment, resulting in only the fluorescence signal of Cys/Hcy-NBD being observed. SQM-NBD appeared superior sensitivity to Cys/Hcy, with LOD of 54 nM and 72 nM, respectively. Significantly, probe SQM-NBD realized the application of fluorescence imaging of Cys/Hcy in HeLa cells, indicating that probe SQM-NBD has the potential for Cys/Hcy identification under physiological and pathological conditions.

A novel turn-on type AIE fluorescent probe for highly selective detection of cysteine/homocysteine and its application in living cells.

Biothiols, associated with multiple physiological and pathological processes, have structural similarities. Monitoring Biothiols selectively in organisms is of great significance. Burdened by the aggregation-caused quenching (ACQ) effect, the applications of conventional biothiols fluorescent probes are extremely limited. Herein, we developed a "turn-on" type aggregation-induced emission (AIE) fluorescent probe BQM-NBD, which was composed of a BQM-OH fluorophore molecule with AIE effect and the recognition group 7-nitro-1,2,3-benzoxadiazole (NBD). Non-fluorescent BQM-NBD produces strong fluorescence after the addition of cysteine (Cys) or homocysteine (Hcy). BQM-NBD exhibited excellent linearity for selective detection of Cys (0-100 Μm) and Hcy (0-50 µM) with detection limits of 6.0 × 10-8 M and 8.4 × 10-8 M, respectively. Simultaneously, after treatment with glutathione (GSH), it appeared no fluorescence. The results demonstrated BQM-NBD exhibited good selectivity to Cys/Hcy. Furthermore, BQM-NBD was successfully performed in the imaging of Cys in living cells with low cytotoxicity, which provides a feasible strategy for the selective detection of Cys in the living system.

Prediction of body fat increase from food addiction scale in school-aged children and adolescents: A longitudinal cross-lagged study.

Objective: Food addiction (FA) is associated with a higher body mass index z-score (BMIZ) in children and adolescents; however, whether these two aspects evolve interdependently remains unknown. This study aimed to address this question using a cross-lagged study. Methods: Weight status, including BMIZ, fat content (FC), and visceral fat level (VFL), was determined in 880 children and adolescents (mean age = 14.02 years [range = 8.83-17.52 years]) at two-time points with an interval of 6 months. FA was characterized using the Chinese version of the dimensional Yale Food Addiction Scale for Children 2.0. Furthermore, FC and VFL were measured using direct segmental multi-frequency bioelectrical impedance analysis at each time point. Results: Higher FA was associated with increased BMIZ, FC, and VFL (P < 0.05). FA at T0 could predict increased FC at T1 (P < 0.05). The characteristics of females, primary students, and living in urban areas may aggravate the adverse effect of FA on weight status over time and age, particularly the increased VFL in participants aged > 14 years. Conclusion: Children and adolescents with a high FA level were at risk for weight gain attributed to increased FC, and the adverse effect could be aggravated with time and age. Novel FA-targeting interventions may help mitigate the risk of getting obesity.

Retrospective analysis: The application of human menopausal gonadotropin combined with letrozole for IUI in patients undergoing artificial insemination by husband due to unexplained or mild male factors.

Objective: To compare the effects of human menopausal gonadotropin (HMG) combined with letrozole (LE) to HMG only for ovarian stimulation on pregnancy outcome of infertile patients undergoing artificial insemination by husband (AIH) due to unexplained or mild male factors. Materials and methods: Infertile patients with unexplained or mild male factors treated from July 2015 to December 2021 were selected as subjects. The patients were divided into two groups according to the ovarian stimulation schemes they received, namely HMG combined with LE or HMG only. We analyzed the laboratory examination results before drug treatment (baseline) and during ovarian stimulation and compared the pregnancy outcomes of the two groups using univariable analysis and multivariable logistic regression analysis. Results: In total, 526 cycles of 372 couples were included. The univariate analysis showed that the clinical pregnancy rate of the HMG combined with LE group was 24.8%, significantly higher than that of the HMG group (14.8%, P = 0.007). The live birth rate (19.9%) of the HMG combined with LE group were also significantly higher than those of the HMG group (11.2%, respectively). In multivariate logistic analysis, the age of males was negatively associated with the clinical pregnancy rate (OR 0.874, 95% CI 0.793~0.963, P=0.006) and live birth (OR0.875, 95% CI 0.783~0.977, P=0.018). Moreover, ovarian stimulation with HMG+LE was the only beneficial factor significantly associated with clinical pregnancy (OR 1.929, 95% CI 1.068~3.485, P=0.029) and live birth (OR 2.255, 95% CI 1.188~4.282, P=0.013). Conclusion: Ovarian stimulation using HMG combined with LE can increase the clinical outcomes (live birth and clinical pregnancy) among infertile patients undergoing AIH due to explained or mild male factors.

ADAMTS9-AS1 Constrains Breast Cancer Cell Invasion and Proliferation via Sequestering miR-301b-3p.

Objective: For determination of how ADAMTS9-AS1/miR-301b-3p/TGFBR2/JAK STAT signaling axis modulates progression of breast cancer cells. Methods: Target lncRNA was determined by differential analysis of breast cancer expression data and survival analysis. Differentially expressed miRNAs and target mRNAs that had binding sites with target lncRNA were predicted. GSEA software was used to carry out pathway enrichment analysis for mRNAs. Binding of the researched genes were tested with RNA binding protein immunoprecipitation (RIP). How miR-301b-3p bound TGFBR2 mRNA was tested by dual-luciferase method. Transwell, colony formation, EdU approaches were employed for verification of invasion and proliferation of breast cancer cells in each treatment group. Results: Markedly inactivated ADAMTS9-AS1 in breast cancer pertained to patient's prognosis. MiR-301b-3p was capable of binding TGFBR2/ADAMTS9-AS1. However, overexpression of ADAMTS9-AS1 stimulated miR-301b-3p binding ADAMTS9-AS1 and repressed miR-301b-3p binding TGFBR2 mRNA. ADAMTS9-AS1 interference enhanced cancer proliferation and invasion, facilitated levels of KI67, PCNA, MMP-9 and MMP-2, and activated the JAK STAT signaling pathway. While silencing miR-301b-3p reversed the effect of ADAMTS9-AS1 interference. In addition, TGFBR2 interference or restraining JAK STAT signaling counteracted the effect of ADAMTS9-AS1. Conclusion: ADAMTS9-AS1 could sequester miR-301b-3p to inhibit progression of breast cancer via TGFBR2/JAK STAT pathway. This study supplies a rationale for incremental apprehension of ADAMTS9-AS1 in breast cancer progression.

Ki67 and progesterone receptor status predicts sensitivity to palbociclib: a real-world study.

BACKGROUND: Palbociclib combined with endocrine therapy has been approved as a front-line treatment for hormone receptor positive (HR+), human epidermal growth factor receptor 2 negative (HER2-) advanced breast cancer (ABC). A key challenge remains to uncover biomarkers to identify those patients who may benefit from palbociclib treatment. METHODS: We retrospectively analyzed the values of Ki67 and progesterone receptor (PR) as detected by immunohistochemistry in 81 ABC patients with palbociclib and hormone therapy treatment, and evaluated the impact on progression-free survival (PFS). RESULTS: In the total population, women with Ki67 ≥14% had marginally significantly shorter PFS than those with Ki67 <14% (P=0.062). Patients with Ki67 ≥30% had significantly shorter PFS than those with Ki67 <30% (P=0.048). Meanwhile, PR ≥20% was associated with longer PFS. Moreover, the change of Ki67 or PR from primary tissue to metastatic lesions was related to PFS. As for the hormone therapy subgroup, there were significant associations between Ki67 and PR levels and PFS in the aromatase inhibitors (AIs) subgroup. Patients with Ki67 ≥14% or Ki67 ≥30% had shorter PFS than those with Ki67 <14% or Ki67 <30%, respectively (P=0.024, P<0.001). Additionally, the change of Ki67 or PR from primary tissue to metastatic lesions was related to PFS. When both Ki67 and PR were considered, there were significant differences between the different cohorts. Compared with patients with Ki67 ≥14% and PR <20%, those with Ki67 <14% and PR ≥20% had significantly longer PFS. In addition, patients with Ki67 <30% and PR ≥20% had significantly longer PFS than those with Ki67 ≥30% and PR <20%. Furthermore, in the AI cohort, patients with Ki67 <14% and PR ≥20% had significantly longer PFS than those with Ki67 ≥14% and PR <20%. Women with Ki67 <30% and PR ≥20% had significantly longer PFS than those with Ki67 ≥30% and PR <20%. CONCLUSIONS: The present study indicates that both Ki67 and PR have great impacts on palbociclib and hormone therapy and may contribute to selecting more effective partners for palbociclib.