Publications by authors named "Xiaodong Ren"

This study investigated the toxic effects of BZF on collembolans at the individual, physiological, biochemical, and molecular levels. The results showed that the median lethal concentration (7d-LC) of BZF on collembolans under 7-day exposure was 2 μg cm. The highest chronic toxicity of BZF against collembolans was exhibited in red soil (200.

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The uncontrolled rapid crystallization inherent in one-step solution process for perovskite films preparation often results in poor crystalline quality and compromised stability, presenting a major obstacle to achieving high-performance perovskite solar cells (PSCs). To overcome this challenge, we propose a multifunctional additive strategy employing Sulfalene (SL), a sulfonyl-based molecule with dual π-conjugated rings, to precisely regulate crystallization dynamics and produce a high-quality crystalline perovskite film. Experimental results show that the electron-rich oxygen atoms in SL form robust coordination bonds with undercoordinated Pb, effectively modulating crystallization dynamics and extending the crystallization process.

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Introduction: Thalassemia trait (TT) and iron deficiency anemia (IDA) are two common types of microcytic hypochromic anemia (MHA), but current diagnostic methods have limitations. This research sought to employ machine learning (ML) algorithms to identify MHA using erythrocyte parameters to distinguish between TT and IDA.

Methods: One hundred and ninety-three subjects with MHA (98 TT and 95 IDA) were retrospectively analyzed.

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A new time-resolved x-ray spectrometer is currently being developed in China's 10-MA facility, which is used for the Z-pinch dynamic Hohlraum radiation-driven opacity experiments. The spectrometer utilizes a six-slits imaging system, generating six frames of soft x-ray spectral images on time-resolved gold-coated MCP detectors after diffraction of a convex cylindrical KAP crystal. The gating time of the system is ∼1.

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Background: Obesity is considered an important risk factor for osteoarthritis (OA), with conicity index (C-index), relative fat mass (RFM) are two novel anthropometric measures of obesity. To investigate the association between OA and these two indicators, we conducted this study.

Methods: We used data from the National Health and Nutrition Examination Survey (NHANES) to investigate the association between C-index, RFM, and OA.

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Introduction: , or group B Streptococcus (GBS), can cause severe infections in humans, yet comprehensive genomic characterization from China remains limited. This study presents an extensive genomic analysis of GBS isolates collected in China from 1998 to 2024.

Methods: GBS genomes were obtained from public databases and through de novo sequencing.

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Internal quality control (IQC) is essential for ensuring the accuracy of results in clinical trials. However, there is a significant shortage of commercial quality control materials for IQC in flow cytometry. This study aimed to develop cost-effective in-house-made whole blood materials from clinically discarded samples to serve as IQC in clinical flow cytometry analysis.

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In this research, ∼0.14-micron-thick aluminum tamped by plastic is heated up to ∼110eV by the x-ray pulse from the Z-pinch-driven dynamic Hohlraum on an 8-MA machine in China. After an ∼6-ns heating stage, higher-energy xrays from an ∼2-ns- long backlight pulse pass through the hot aluminum.

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Objective: The aim of the study was to explore the effects of the combination of noise reduction earplugs with white noise and rational emotional therapy on the emotional states of inpatients with colorectal cancer (CRC).

Methods: The study selected 152 CRC patients who received inpatient treatment in our hospital from January 2020 to January 2022 as the research objects. According to different nursing intervention modes, these patients were divided into the observation group (OG, n = 73, conventional nursing + noise reduction earplugs with white noise + rational emotional therapy) and the control group (CG, n = 79, conventional nursing) to compare the emotional status, sleep quality, and other indicators between the two groups.

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Introduction: Abundant evidence suggests that the overexpression of CDK2-cyclin A/E complex disrupts normal cell cycle regulation, leading to uncontrolled proliferation of cancer cells. Thus, CDK2 has become a promising therapeutic target for cancer treatment. In recent years, insights into the structures of the CDK2 catalytic site and allosteric pockets have provided notable opportunities for developing more effective clinical candidates of CDK2 inhibitors.

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Background: To observe the basic metabolic characteristics of obese patients with polycystic ovarian syndrome (PCOS), and observe and compare the effect of laparoscopic sleeve gastrectomy and metformin treatment after 3 months.

Methods: In January to December 2018, the Second Hospital of Hebei Medical University selected 104 women who were classified as obese with a body mass index (BMI) of 28 kg/cm2 or higher and had PCOS. They were divided into obese PCOS group (53 cases) and obese non-PCOS group (51 cases).

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Purpose: This study aimed to develop a novel and feasible modification strategy to improve the solubility and antitumor activity of resiquimod (R848) by utilizing the supramolecular effect of 2-hydroxypropyl-beta-cyclodextrin (2-HP-β-CD).

Methods: R848-loaded PLGA nanoparticles modified with 2-HP-β-CD (CD@R848@NPs) were synthesized using an enhanced emulsification solvent-evaporation technique. The nanoparticles were then characterized in vitro by several methods, such as scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, particle size analysis, and zeta potential analysis.

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Developing an additive to effectively regulate the perovskite crystallization kinetics for the optimized optoelectronic properties of perovskite film plays a vital role in obtaining high efficiency and stable perovskite solar cells (PSCs). Herein, a new additive is designed and directly synthesized in perovskite precursor solution by utilizing an addition reaction between but-3-yn-1-amine hydrochloride (BAH) and formamidinium iodide. It is found that its product may control the intermediate precursor phase for regulating perovskite nucleation, leading to advantageous 2D perovskite to induce growth of perovskite along the preferred [001] orientation with not only released lattice strain but also strong interaction with perovskite to passivate its surface defects.

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The instability of top interface induced by interfacial defects and residual tensile strain hinders the realization of long-term stable n-i-p regular perovskite solar cells (PSCs). Herein, one molecular locking strategy is reported to stabilize top interface by adopting polydentate ligand green biomaterial 2-deoxy-2,2-difluoro-d-erythro-pentafuranous-1-ulose-3,5-dibenzoate (DDPUD) to manipulate the surface and grain boundaries of perovskite films. Both experimental and theoretical evidence collectively uncover that the uncoordinated Pb ions, halide vacancy, and/or I─Pb antisite defects can be effectively healed and locked by firm chemical anchoring on the surface of perovskite films.

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Objective: Anorectal mucosal melanoma is a rare and aggressive cancer with limited treatment options. Investigating specific molecular pathways may provide insight into the development and progression of this cancer. This study aims to investigate the role of chitinase-3-like protein-1 (YKL-40) in promoting the development of anorectal mucosal melanoma through the PI3K-AKT signaling pathway.

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Article Synopsis
  • Scientists studied a group of bacteria called complex (Smc) that can cause infections in hospitals, but not much is known about them.
  • They analyzed 734 samples of these bacteria to see how they are related and how dangerous they can be, also checking their resistance to medicines.
  • The results showed there are 24 different types of Smc around the world, with many having special traits that help them survive and make people sick, so we need to focus on treating all types, not just the most well-known one.
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The instability of the buried interface poses a serious challenge for commercializing perovskite photovoltaic technology. Herein, we report a polydentate ligand reinforced chelating strategy to strengthen the stability of buried interface by managing interfacial defects and stress. The bis(2,2,2-trifluoroethyl) (methoxycarbonylmethyl)phosphonate (BTP) is employed to manipulate the buried interface.

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Monopolar spindle kinase 1 (MPS1) plays a pivotal role as a dual-specificity kinase governing spindle assembly checkpoint activation and sister chromatid separation in mitosis. Its overexpression has been observed in various human malignancies. MPS1 reduces spindle assembly checkpoint sensitivity, allowing tumor cells with a high degree of aneuploidy to complete mitosis and survive.

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Bloodstream infection (BSI) caused by bacteria is highly pathogenic and lethal, and easily develops whole-body inflammatory state. Immediate identification of disease-causing bacteria can improve patient prognosis. Traditional testing methods are not only time-consuming, but such tests are limited to laboratories.

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Background: The most common causes of microcytic hypochromic anemia are thalassemia trait (TT) and iron deficiency anemia (IDA). Clinically, the differential diagnosis of TT and IDA is crucial, but it is typically challenging. Thus, in order to differentiate between TT and IDA, we seek to develop a new discriminative index on an automatic hematology analyzer utilizing the two new RBC characteristics of low hemoglobin density (LHD) and microcytic anemia factor (MAF).

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With 40% efficiency under room light intensity, perovskite solar cells (PSCs) will be promising power supplies for low-light applications, particularly for Internet of Things (IoT) devices and indoor electronics, shall they become commercialized. Herein, β-alaninamide hydrochloride (AHC) is utilized to spontaneously form a layer of 2D perovskite nucleation seeds for improved film uniformity, crystallization quality, and solar cell performance. It is found that the AHC addition indeed improves film quality as demonstrated by better uniformity, lower trap density, smaller lattice stress, and, as a result, a 10-fold increase in charge carrier lifetime.

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The efficiency of metal halide perovskite solar cells (PSCs) has skyrocketed; however, defects created by aging precursor solutions and during crystallization pose a significant barrier to the reproducibility and efficiency of solar cells. In this work, fluoro-N,N,N″,N″-tetramethylformamidinium hexafluorophosphate (F-(CH ) CN PF , abbreviated as TFFH) is introduced to stabilize precursor solution and improve crystallization dynamics simultaneously for high-performance formamidinium lead iodide (FAPbI )-based perovskite indoor photovoltaics. The TFFH stabilizes the precursor solution by inhibiting oxidation of I and reducing newly generated I to I , and passivates undercoordinated Pb by interacting with the Pb─I framework.

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Lung cancer is the second most-frequently occurring cancer and the leading cause of cancer-associated deaths worldwide. Non-small cell lung cancer (NSCLC), the most common type of lung cancer is often diagnosed in middle or advanced stages and have poor prognosis. Diagnosis of disease at an early stage is a key factor for improving prognosis and reducing mortality, whereas, the currently used diagnostic tools are not sufficiently sensitive for early-stage NSCLC.

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Circulating tumor cells (CTCs) are cells shed from primary or metastatic tumors and spread into the peripheral bloodstream. Mutation detection in CTCs can reveal vital genetic information about the tumors and can be used for "liquid biopsy" to indicate cancer treatment and targeted medication. However, current methods to measure the mutations in CTCs are based on PCR or DNA sequencing which are cumbersome and time-consuming and require sophisticated equipment.

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