Publications by authors named "Li Yanzhen"

Soluble sugars are not only an important contributor to fruit quality, but also serve as the osmotic regulators in response to abiotic stresses. Early drought stress promotes sugar accumulation, while specific sugar transporters govern the cellular distribution of the sugars. Here, we show that apple plantlets accumulate soluble sugars in leaf tissues under drought stress.

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  • * Recovery of parathyroid hormone (PTH) levels showed that 73.5% of patients improved within six months, while some required up to two years, indicating variability in recovery times.
  • * Risk factors for delayed recovery included low PTH levels on the first day post-surgery and bilateral lymph node metastasis, with the study highlighting the need for further examination on when permanent HP is diagnosed.
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  • * Researchers analyzed the clinical records of 4 children with upper esophageal fetal RM who underwent surgical procedures at a specific hospital between 2016 and 2022, focusing on their treatment outcomes and histological features.
  • * Despite being a benign tumor, fetal RM has a tendency to recur, making complete excision the best treatment, and clinicians should be familiar with management guidelines to ensure consistent care.
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Characterization of transport pathways and depositional changes in Mercury (Hg) and their connection to climatic and environmental changes on various time scales are crucial for better understanding the anthropogenic impacts on the global Hg cycle in the Anthropocene epoch. In this study, we examined Hg variations recorded in a stalagmite from central China, covering the period from 25.5 to 10.

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Objectives: To investigate the efficacy and safety of carbon dioxide (CO) laser cauterization in the treatment of pediatric congenital pyriform sinus fistula (CPSF), and to track and follow up the long-term outcome of the postoperative patients.

Methods: This retrospective study was conducted at a single center, where clinical data and follow-up information of children with CPSF who underwent CO laser cauterization with the assistance of a suspension laryngoscope and microscope were collected and analyzed their clinical characteristics and prognosis. Subsequently, multiple logistic regression analysis was performed to identify potential predictors of the number of laser cauterization procedures.

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The study aims to retrospectively summarize the clinical features of pediatric thyroglossal duct cyst (TGDC), investigate the efficacy of the modified Sistrunk (mSis) procedure, and analyze the recurrence risks. The clinical data of 391 children with TGDC admitted to Beijing Children's Hospital affiliated Capital Medical University and Baoding Children's Hospital from March 2012 to December 2021 were retrospectively analyzed. All patients underwent cervical ultrasound for preoperative evaluation.

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Conventional wound closure methods, including sutures and tissue adhesives, present significant challenges for self-care treatment, particularly in the context of bleeding wounds. Existing stimuli-responsive contractile materials designed for autonomous wound closure frequently lack sufficient output work density to generate the force needed to bring the wound edges into proximity or necessitate stimuli that are not compatible with the human body. Here, semi-transparent, flexible, and water-responsive shrinkable films, composed of poly(ethylene oxide) and α-cyclodextrin, are reported.

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Mixed conducting materials with both ionic and electronic conductivities have gained prominence in emerging applications. However, exploring material with on-demand ionic and electronic conductivities remains challenging, primarily due to the lack of correlating macroscopic conductivity with atom-scale structure. Here, the correlation of proton-electron conductivity and atom-scale structure in graphdiyne is explored.

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To provide the experience of diagnosis and treatment of second branchial cleft fistula in children. The clinical data of 76 children with second branchial cleft fistulas admitted to Beijing Children's Hospital affiliated with Capital Medical University from January 2016 to December 2020 were retrospectively analyzed. All patients underwent cervical ultrasonography and resection of the second branchial cleft fistula, and their clinical manifestations, surgical methods, complications, recurrence condition, and lesion appearance of the patients were analyzed.

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Central Asia (CA) is one of the world's most significant arid regions, which is markedly impacted by global warming. A better understanding of the dynamical processes governing its Holocene climate variability is critical for a better understanding of possible future impacts of climate change in the region. To date, most of the existing CA paleoclimate records are from the summer precipitation-dominated eastern CA (ECA), with few records from the winter precipitation-dominated western CA (WCA).

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Introduction: Ulcerative colitis (UC) is a global chronic inflammatory bowel disease, and the poor efficacy of currently available pharmacological regimens makes the management of UC a great challenge. Moxibustion has shown great potential in the management of UC. However, its effectiveness and safety are still controversial.

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Mechanical compliance and electrical enhancement are crucial for pressure sensors to promote performances when perceiving external stimuli. Here we propose a bioinspired multiscale heterogeneity-based interface to adaptively regulate its structure layout and switch to desirable piezoresistive behaviors with ultralow detection limitation. In such a multiscale heterogeneities system, the micro-/nanoscale spiny Ag-MnO heterostructure contributes to an ultralow detection limitation of 0.

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Active sensing is a fundamental aspect of human and animal interactions with the environment, providing essential information about the hardness, texture, and tackiness of objects. This ability stems from the presence of diverse mechanoreceptors in the skin, capable of detecting a wide range of stimuli and from the sensorimotor control of biological mechanisms. In contrast, existing tactile sensors for robotic applications typically excel in identifying only limited types of information, lacking the versatility of biological mechanoreceptors and the requisite sensing strategies to extract tactile information proactively.

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Purpose: This study used optical coherence tomography scanning and 3D reconstruction of the macular region in high myopia to examine more thoroughly and carefully the differences between high myopia-related macular complications with and without dome-shape macula (DSM) and to determine whether the DSM's fine structure has an effect on them.

Methods: Retrospective analysis of the medical records of 345 eyes with high myopia who underwent an optical coherence tomography (OCT) examination. They were divided into the DSM group (69 eyes) and the group without DSM (276 eyes).

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Background And Objectives: Ulcerative colitis (UC) is a recurrent intestinal inflammatory disease which poses a serious threat to the life of patients. However, there are no specific drugs for UC yet. Hypericum sampsonii Hance (HS) is a Chinese herbal medicine traditionally used to treat enteritis and dysentery.

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Objectives: To summarize the clinical characteristics and prognosis of children with nasolabial fold rhabdomyosarcoma (RMS).

Methods: Retrospective review of children treated for nasolabial fold RMS from January 2014 to September 2019.

Results: Of 21 patients with nasolabial fold RMS, 90.

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Hypoxic microenvironments are intricately linked to malignant characteristics of glioblastoma multiforme (GBM). Long non-coding ribonucleic acids (lncRNAs) have been reported to be involved in the progression of GBM and closely associated with hypoxia. Nevertheless, the differential expression profiles as well as functional roles of lncRNAs in GBM cells under hypoxic conditions remain largely obscure.

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Hypericum sampsonii Hance, also known as Yuanbao Cao in Chinese, is a traditional medicinal herb from the Guttiferae family and has been widely used in China to treat various conditions, including dysentery, enteritis, mastitis, scrofula, and contusion. This review aims to provide a comprehensive overview of the botany, traditional uses, phytochemistry, biological activity and safety of and to highlight its potential for medical application and drug development. We searched several databases, i.

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Phytochemical investigation of Hypericum sampsonii Hance resulted in the isolation of thirty-five polycyclic polyprenylated acylphloroglucinols including six new ones (1, 3, 5, and 15-17). Their structures were elucidated by UV, IR, NMR, HRESIMS, and calculated ECD analysis. Some compounds were evaluated for their anti-inflammatory effects in LPS-induced RAW264.

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Background: This research was to investigate the mechanism of neutrophil elastase (NE) in dexmedetomidine (DEX) alleviates sepsis-related renal injury in rats.

Methods: Sixty healthy male SD rats aged 6-7 weeks were randomly assigned to the control group (Sham group (S group)), Model group (M group), Model + DEX group (M + DEX group), and Model + DEX + Elaspol group (M + DEX + Elaspol (sivelestat) group), with 15 rats in each group. The renal morphology and pathological changes of different groups of rats after modeling were observed, and renal tubular injury was scored.

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Soluble sugars are the core components of fruit quality, and the degree of sugar accumulation is largely determined by tonoplast-localized sugar transporters. We previously showed that two classes of tonoplast sugar transporters, MdERDL6 and MdTST1/2, coordinately regulate sugar accumulation in vacuoles. However, the mechanism underlying this coordination remains unknown.

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A Rh(II)-catalyzed oxy-alkynylation of acceptor-acceptor carbenes using EBX reagents was successfully developed. The key alkyne-transfer step is likely to occur through a tandem process involving a β-addition, an α-elimination, and a 1,2-shift, which was supported by the formation of alkylidene carbene. Various diverse C2-quaternary alkyne-substituted benzofuran-3-ones and 2,2,4,5-tetrasubstituted 3(2)-furanones can be synthesized smoothly, depending on the choice of diazo compounds and the base additives.

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Article Synopsis
  • * A case study is reported involving a 9-year-old boy with nontraumatic MO affecting the trapezius muscle, highlighting the challenges of diagnosing this uncommon condition.
  • * The article aims to improve understanding of MO by detailing the diagnosis, treatment, and characteristics of the condition, while also reviewing existing literature to aid clinicians in making accurate diagnoses.
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