Publications by authors named "Wei Wei Xu"

Article Synopsis
  • The study evaluates the effectiveness of a self-formulated herbal remedy, Ergan Tang, in treating paroxysmal atrial fibrillation (AF) in elderly patients with a specific deficiency type.
  • Participants (40 elderly patients) were divided into two groups, receiving either Ergan Tang or the drug amiodarone, with their conditions assessed over an 8-week treatment period.
  • Results showed that while both treatments had similar outcomes in the long run, the Ergan Tang group experienced significant improvements in their symptoms, a notable reduction in AF burden, decreased inflammatory markers, and a reduction in heart rate.
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Background: This study aims to evaluate the correlation between miRNAs and known nerve injury markers neuron-specific enolase (NSE) and S100β in ischemic stroke (IS) patients, exploring its efficacy.

Methods: We retrospectively analyzed 86 IS patients and 32 healthy controls. Clinical and neurological examinations were performed in the admitted patients and the severity of neurological deficits was assessed by National Institutes of Health Stroke Scale (NIHSS).

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Rare earth elements (REEs), vital and limited resources, also play a significant role in agriculture. Previous findings indicated that the proper concentration of REEs could enhance the germination process, seed germination rate, and seedling growth and development. This paper introduces designing, synthesizing, and assembling a new type of tapered nanogates for separating and detecting lanthanide ions (La).

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Primary dysmenorrhea (PDM) refers to the occurrence of spasmodic colicky pain in the lower abdomen without any obvious pelvic pathology, often accompanied by other systemic symptoms, which significantly reduces the quality of life of women with PDM, 45%-95% of menstrual women are affected by it. Despite the high incidence of PDM, it is often not well treated and is ignored by relevant researchers and women themselves. Herbs-partitioned moxibustion (HPM) is a characteristic external therapy in traditional Chinese medicine (TCM), which is widely used to treat diseases in China; it treats diseases by applying a Chinese herbal formula on the patient's acupoints and then igniting moxa sticks on the herbal formula for moxibustion therapy.

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Peking Union Medical College (PUMC) launched the "4+4" Medical Doctor (MD) pilot program in 2018, admitting students with non-medical backgrounds from top universities, aligning with national medical talent training policies to foster diverse and eager learners in medicine. On the occasion of the graduation of the first class of the "4+4" MD pilot class at PUMC in 2023, we reviewed the teaching reform in the pilot program and carried out a systematic survey and interviews with students, faculties, and management staff of the pilot class. This article reports on the measures taken by the pilot class at PUMC in enrollment and curriculum setting, and demonstrates the achievements of the pilot class in terms of student academic background structure, knowledge acquisition and skill learning, scientific research ability, and course evaluation.

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Background: Due to the complexity and numerous comorbidities associated with Crohn's disease (CD), the incidence of postoperative complications is high, significantly impacting the recovery and prognosis of patients. Consequently, additional studies are required to precisely predict short-term major complications following intestinal resection (IR), aiding surgical decision-making and optimizing patient care.

Aim: To construct novel models based on machine learning (ML) to predict short-term major postoperative complications in patients with CD following IR.

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Article Synopsis
  • Dipterocarpoideae species, crucial for Asian rainforests, face severe threats; understanding their adaptation and decline is essential.
  • Researchers sequenced the genomes of seven Dipterocarpoideae species to trace their evolutionary history, estimating key divergence times and identifying a whole genome duplication event that aided in their diversification.
  • The study revealed a population expansion after the last glacial period followed by a significant decline linked to human activities, underscoring the impact of anthropogenic disturbances on their survival.
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In this Letter, a method for the fabrication of bifocal lenses is presented by combining surface ablation and bulk modification in a single laser exposure followed by the wet etching processing step. The intensity of a single femtosecond laser pulse was modulated axially into two foci with a designed computer-generated hologram (CGH). Such pulse simultaneously induced an ablation region on the surface and a modified volume inside the fused silica.

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Article Synopsis
  • Researchers are creating advanced biomimetic structures inspired by natural micro/nanostructures to enhance performance, especially for optical uses like high-transmission windows.
  • The review focuses on the mechanism and advantages of antireflective subwavelength structures (ARSSs) that reduce surface reflection.
  • It also covers recent advancements in fabrication using ultrafast lasers, discusses challenges faced in the laser processing technology, and suggests future directions for improvement.
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Objective: This prospective study aimed to evaluate the effect of beinaglutide combined with metformin versus aspart 30 with metformin on metabolic profiles and antidrug antibodies (ADAs) in patients with type 2 diabetes (T2D).

Methods: A total of 134 eligible participants were randomly assigned to the test group and the control group. Patients in the test group were treated with beinaglutide and metformin, whereas patients in the control group were randomly treated with aspart 30 and metformin, with a follow-up period of 6 months.

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Background: This prospective study aimed to compare telemedicine-assisted structured self-monitoring of blood glucose(SMBG) with a traditional blood glucose meter (BGM) in adults of type 2 diabetes mellitus (T2DM).

Methods: Adult participants with T2DM were assigned to an intervention group or a control group. The patients in the intervention group received a connected BGM with real-time data submission as well as individual needs-based tele-coaching to address and improve motivation and daily diabetes self-management.

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Objective: Benaglutide is a glucagon-like peptide-1 receptor agonist (GLP-1RA) that has been approved in the treatment of type 2 diabetes mellitus (T2DM). It is known to lead to significant weight loss, and it is hypothesized that changes in gut microbiota may play a significant role in such weight loss. However, it is unclear how gut microbiota and metabolites change as a result of benaglutide treatment.

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Background: Exogenous insulin antibody syndrome (EIAS) is an immunological disorder caused by circulating insulin antibodies (IAs), featuring hypersensitivity to exogenous insulin and insulin resistance. With the wide use of recombinant human insulin and insulin analogs, there has been a significant proliferation of EIAS.

Case Report: We describe two cases of diabetes mellitus (DM) with hyperinsulinemia and high serum levels of IAs.

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The development of transition metal-catalyzed β-C-H bond activation via highly-strained 4-membered metallacycles has been a formidable task. So far, only scarce examples have been reported to undergo β-C-H bond activation via 4-membered metallacycles, and all of them rely on precious metals. In contrast, earth-abundant and inexpensive 3d transition metal-catalyzed β-C-H bond activation via 4-membered metallacycles still remains an elusive challenge.

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Thalidomide induces γ-globin expression in erythroid progenitor cells, but its efficacy on patients with transfusion-dependent β-thalassemia (TDT) remains unclear. In this phase 2, multi-center, randomized, double-blind clinical trial, we aimed to determine the safety and efficacy of thalidomide in TDT patients. A hundred patients of 14 years or older were randomly assigned to receive placebo or thalidomide for 12 weeks, followed by an extension phase of at least 36 weeks.

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Objective: The goal of the present study was to observe the effect of autophagy in tibial plateau chondrocytes on apoptosis in spontaneous knee osteoarthritis (OA) in guinea pigs.

Design: Fifty 2-month-old female Hartley guinea pigs were divided into a normal group (10 animals, all euthanized after 7 months) and an OA group (40 animals, 10 of which were euthanized after 10 months). Immunohistochemistry, RT-qPCR and Western blotting were used to evaluate autophagy levels, intracellular glycogen accumulation and apoptosis in tibial plateau chondrocytes and .

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The construction of 7-membered ring via direct C7-H cyclization of benzoimidazoles with alkenes would provide a more atom- and step-economical route to tricyclic imidazoles and derivatives that widely exist in a broad range of bioactive molecules. However, transition metal-catalyzed C-H cyclization for medium-ring synthesis has been limited to reactive C-H bonds, instead, the activation of unreactive C-H bonds towards medium synthesis still remains an elusive challenge. Herein, we report a direct construction of 7-membered rings via Ni-Al co-catalyzed unreactive C7-H cyclization of benzoimidazoles with alkenes, providing a series of tricyclic imidazoles in 40-98% yield and with up to 95:5 er.

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We investigated the spatial distribution and storage of nitrogen and phosphorus in Lake Chaohu sediments and evaluated the sediment nitrogen and phosphorus pollution index. Results show that the average total nitrogen (TN) and total phosphorus (TP) content in the surface-layer sediments of Lake Chaohu were 1088 mg·kg and 585 mg·kg, respectively, and 666 mg·kg and 509 mg·kg in the bottom-layer sediments, respectively. TN content in the surface layer was significantly higher than in the bottom layer (<0.

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As the reference radiometric calibration standard of sensors on the Haiyang-1C (HY-1C) satellite platform, the satellite calibration spectrometer (SCS) is equipped with an onboard calibration system composed of double solar diffusers and an erbium-doped diffuser to monitor the postlaunch radiometric response change. Herein, through onboard calibration data analysis, the calibration diffuser performance remains stable without degradation, and the Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra is adopted as a reference to repeatedly verify onboard radiometric calibration results by selecting different dates and reflectance scenes. The SCS equivalent reflectance is obtained by combining the mean digital number (DN) of the SCS crossing area image with the radiometric calibration coefficient.

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The proliferation of vascular smooth muscle cells (VSMCs) induced by oxidative injury is one of the main features in diabetes-accelerated atherosclerosis. Geranylgeranyl transferase-I (GGTase-I) is an essential enzyme mediating posttranslational modification, especially the geranylgeranylation of small GTPase, Rac1. Our previous studies found that GGTase-I played an important role in diabetes-accelerated atherosclerosis.

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Hyperglycemia contributes to the excessive proliferation and migration of vascular smooth muscle cells (VSMC), which are closely associated with atherosclerosis. MicroRNAs (miRNAs/miRs) constitute a novel class of gene regulators, which have important roles in various pathological conditions. The aim of the present study was to identify miRNAs involved in the high glucose (HG)‑induced VSMC phenotype switch, and to investigate the underlying mechanism.

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It has been demonstrated that miRNAs play critical roles in the tumorigenesis and progression of various tumors. The purpose of this research was to determine the serum miR-632 levels in patients with laryngeal squamous cell carcinoma (LSCC) and to investigate its diagnostic and prognostic value. We detected serum miR-632 levels in 162 LSCC patients and 42 healthy volunteers.

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Background: Mutations in the isocitrate dehydrogenase 1 (IDH1) and IDH2 genes are important for both the integrated diagnosis and the prognosis of diffuse gliomas. The p.R132H mutation of IDH1 is the most frequently observed IDH mutation, while IDH2 mutations were relatively rarely studied.

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Breast cancer, as one of the most malignant tumors, poses a serious threat to the lives of females. Nucleotide exchange factor SIL1 is an important regulator of endoplasmic reticulum function that might have a specific role in tumor progression. In this study, we aimed to investigate the effect of SIL1 on the proliferation, apoptosis, and metastasis of human breast cancer.

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