Publications by authors named "Lingpeng Pei"

Article Synopsis
  • This study investigates the relationship between changes in microbial communities in the lungs and gut of a rat model for idiopathic pulmonary fibrosis (IPF) to understand how these changes may relate to disease mechanisms.
  • Researchers found significant differences in microbial composition in the lung and gut of IPF model rats when compared to control rats, indicating a potential link between microbial shifts and IPF.
  • Mediation analysis identified specific physiological indices, such as hydroxyproline and mean corpuscular volume, that connect lung and gut microbial genera, revealing complex interactions that could contribute to IPF pathology through the "gut-lung axis."
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Previous studies have shown that bacterial translocation may play an important role in worsening gastrointestinal injury during sepsis. However, the dynamics of specific microbiota components in intestinal tissues at different sepsis stages remain unclear. Rats receiving intraperitoneal lipopolysaccharide (LPS) were sacrificed at 12 h and 48 h post-injection.

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Objective: To study the active ingredients in the root bark of .

Methods: Three triterpenoid saponins were separated from the 70% ethanol extracts and purified by column chromatography and their structures were determined by spectroscopic analysis. Compound and were evaluated for antioxidant activity by the DPPH free radical scavenging ability and the protective effect of OH induced DNA oxidative damage.

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The lung microbiota have been found to be substantially altered in numerous pulmonary disorders, and crosstalk between the host pathophysiology and lung microbiota plays critical roles in the regulation of disease states. The aim of this study was to investigate dynamic changes in the lung microbiota during different stages of acute lung injury and acute respiratory distress syndrome (ALI/ARDS). Rats receiving an intraperitoneal administration of lipopolysaccharide (LPS) were sacrificed at 12 and 48 h after injection, and the hematological parameters, serum cytokine levels, and histological characteristics of the lung tissue and lung microbiota were assessed.

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The ubiquitin/proteasome system controls the stability of Runx2 and JunB, proteins essential for differentiation of mesenchymal progenitor/stem cells (MPCs) to osteoblasts. Local administration of proteasome inhibitor enhances bone fracture healing by accelerating endochondral ossification. However, if a short-term administration of proteasome inhibitor enhances fracture repair and potential mechanisms involved have yet to be exploited.

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Background: The study aimed to identify the effects of modeling procedures on bacterial communities and to investigate whether different modeling procedures lead to consistent patterns of gut microbiome compositions.

Methods: Two irritable bowel syndrome (IBS) rat models maternal separation (MS) alone and multiple-early-adversity modeling (MAM) were established and the gut microbiome were analyzed using 16S-rRNA-based high-throughput sequencing methods.

Results: Rats from both models exhibited visceral hypersensitivity and the two model groups exhibited differences in the extent of visceral sensitivity and fecal water content.

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Ethnopharmacological Relevance: Irritable bowel syndrome (IBS) is a chronic, stress-related, functional gastrointestinal disorder characterized by abdominal discomfort and altered bowel habits; the manipulation of the microbiota is emerging as a promising therapeutic option for IBS. Cynanchum thesioides (CT) is an herb of traditional Mongolian medicine that has been employed in treating abdominal pain and diarrhea for hundreds of years. Phytochemical studies of this plant showed the presence of various flavonoids with antibacterial and anti-inflammatory activities.

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Currently, no effective drug treatment is available for bone and joint disease, a disorder of the bone and cartilage cells. Osteonecrosis of the femoral head (ONFH) is an example of bone and joint disease. It is progressive, with femoral head collapse resulting from the death of osteocytes and the bone marrow, leading to a poor quality of life and surgical interventions.

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About 1 in 3 people suffer from bone and joint disease, which is a disease of bone and cartilage cells. Osteonecrosis of the femoral head (ONFH) is a typical example of bone and joint disease involving bone cell necrosis. Osteonecrosis of the femoral head leads to the occurrence of premature osteoarthritis of the hip and collapse of the cartilage cells, and there is currently no effective drug treatment available.

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Three new minor oleanane triterpenoid saponins, cylindrosides B (1), C (2), and D (3), were isolated from the seed of Cylindrokelupha dalatensis using chromatographic method. Their structures were established on the basis of the chemical and spectroscopic evidences. They displayed significant antitumor activity in vitro against HL60 cancer cell lines and IC values were 7.

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This paper was aimed to investigate the effect of Aralia echinocaulis containing serum on expression of β-catenin, Wnt-1, Frizzed-2, TCF and Axin in Wnt/β-catenin signaling pathway of primary osteoblasts. SD healthy female rats (n=80) were used to make A. echinocaulis containing serum by gastric perfusion for seven days with distilled water, A.

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Patients taking antidepressants, including Clomipramine (CLP), have an increased risk of osteoporotic fracture. However, the effects of CLP on bone metabolism are unknown. Here, we demonstrate that WT mice treated with CLP for 2 weeks had significantly reduced trabecular bone volume and cortical bone thickness, associated with increased osteoclast (OC) numbers, but had no change in osteoblast numbers or bone formation rate.

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In this article, the authors firstly summarized the number of applications submitted to and projects supported by the National Natural Science Foundation of China (NSFC) in the field of traditional Chinese medicine research in 2010. Then they described the district distribution, research direction layout and allotment of the approved projects in the three primary disciplines (traditional Chinese medicine, Chinese materia medica and integrated traditional Chinese and Western medicine) and their 43 subdisciplines. The targeting suggestions for improvement were given respectively by concluding the reason of disapproved projects from the point of view of applicants and supporting institution, and by stating the common problems existing in the review process from the perspectives of fund managers and evaluation experts.

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Objective: To investigate the influence of aqueous extract of Aralia echinocaulis Hand.-Mazz on the expression of fracture healing-ralated factor receptors.

Methods: Single factor model was set up in SD rat.

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The Cichorium glandulosum Boiss et Huet is a traditional Uighur natural herbal medicine, but has not been analyzed and studied in terms of its metal elements. In the experiment, the Cichorium glandulosum Boiss et Huet powder was digested with HNO3 by microwave digestion before determination. The eight metal elements, potassium, nickel, calcium, magnesium, iron, manganese, copper and zinc, in Cichorium glandulosum Boiss et Huet were determined by FAAS.

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Objective: To study the influence of canthaxanthin on D-galactose induced osseous changes of rat.

Methods: Forty-five six-week-old Wistar male rats were randomly divided into model group, canthaxanthin group and young control group. In addition, 15 sixteen-month-old Wistar male rats were used as old control group.

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Objective: To investigate the effect of Astaxanthin on enhancing the function of anti-oxidative damage in osteoblast.

Methods: MC3T3-E1 osteoblasts were randomly divided into five groups, including control group, model group, Astaxanthin group [low-dose (1 x 10(-7) mol/L), middle-dose (1 x 10(-6) mol/L), high-dose (1 x 10(-5) mol/L)], in which the activity of cells, activity of superoxide dismutase (SOD), the content of reactive oxygen species (ROS), lipid oxygen (LPO) and membrane fluidity were tested and compared.

Results: Compared with Astaxanthin groups, the activity of cells, SOD activity and membrane fluidity in the model group were significantly decreased (P < 0.

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