Publications by authors named "Pengju Fan"

This study presents a comprehensive analysis of IFN-γ-Gaillardin nanoparticles (NPs) using a combination of computational, biophysical and cell-based approaches. The molecular docking analysis revealed that both hydrogen and hydrophobic forces are involved in the formation of IFN-γ-Gaillardin complex The interaction between IFN-γ and Gaillardin was further characterized by a pronounced ANS fluorescence spectrum peak and a higher intensity for IFN-γ. The Langmuir, Scatchard, and Hill analyses revealed a higher affinity and lower dissociation constant for IFN-γ NPs compared to IFN-γ alone, suggesting enhanced complex stability.

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Introduction: Diabetic wounds are difficult to heal, but the pathogenesis is unknown. MicroRNAs (miRNAs) are thought to play important roles in wound healing. The effect of miR-488-3p in wound healing was studied in this article.

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Objective: To develop an explainable lightweight skin disease high-precision classification model that can be deployed to the mobile terminal.

Methods: In this study, we present HI-MViT, a lightweight network for explainable skin disease classification based on Modified MobileViT. HI-MViT is mainly composed of ordinary convolution, Improved-MV2, MobileViT block, global pooling, and fully connected layers.

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Background: JAK2/STAT3 signaling pathway plays an important role in keloid formation, but the upstream mechanism of their activation remains unclear.

Objective: This study aims to investigate the possible mechanism of lncRNA-ZNF252P-AS1 in keloid.

Methods: The differentially expressed genes in keloid and their upstream regulatory miRNAs and long non-coding RNAs (lncRNAs) were analyzed by bioinformatics database, and the targeting relationship was further verified by dual-luciferase reporter gene assay.

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Objectives: Rhinoplasty is one of the most common cosmetic surgeries in China. Septal extension grafts (SEG) have been widely used in rhinoplasty, but there are few reports on SEG derived from ear cartilage. This study aims to explore the effectiveness and stability of auricular cartilage nasal SEG transplantation in Chinese rhinoplasty.

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Breast cancer (BRCA) is a malignant tumor with a high incidence and poor prognosis in females. However, its pathogenesis remains unclear. In this study, based on bioinformatic analysis, we found that LINC00467 was highly expressed in BRCA and was associated with tumor metastasis and poor prognosis.

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Background: A low survival rate is one of the main challenges in fat grafting.

Objectives: This study aimed to evaluate whether microfat obtained by a novel strategy promoted the survival and retention of fat grafts.

Methods: A 5-mm-diameter blunt tip cannula with large side holes (~30 mm2/hole) was used to obtain macrofat.

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Hypertrophic scar (HTS) is a complicated pathological process induced mainly by burns and wounds, with abnormal proliferation of fibroblasts and the transformation of fibroblasts to myofibroblasts. PAPPA-AS1, a differentially expressed long noncoding RNA (lncRNA) in the HTS tissues, attracted our interests in its potential role and mechanism in the development and process of HTS. In the present study, the regulatory effect of lncRNA PAPPA-AS1 on the Toll-like receptor 4 (TLR4) signal pathway, as well as the molecular mechanism, was investigated.

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Background: Neuropathic pain belongs to chronic pain and is caused by the primary dysfunction of the somatosensory nervous system. Long noncoding RNAs (lncRNAs) have been reported to regulate neuronal functions and play significant roles in neuropathic pain. DLEU1 has been indicated to have close relationship with neuropathic pain.

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Objectives: Saddle nose deformity is a common clinical nose deformity. This study aimed to evaluate the effectiveness of the 6th autogenous costal cartilage in the treatment of severe saddle nose deformity after trauma.

Methods: A retrospective analysis was conducted on 15 patients with severe post-traumatic saddle nose deformity from March, 2016 to March, 2019.

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Malignant melanoma is one of the most leading forms of skin cancer associated with a low patient survival rate. There is an urgent need to illustrate risk factors that can trigger the motility of melanoma cancer cells. Our present study revealed that mono-(2-ethylhexyl)phthalate (MEHP) exposure can significantly increase the in vitro migration and invasion of WM983A and A375 cells.

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Titanium cranioplasty is one of the well-established and widely used techniques for repairing cranial defects. In this paper, we present an improved way to design and create titanium meshes with more evaluation process. Computed tomography scan data of patients were used to create three-dimensional virtual models.

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Excessive scars affect a patient's quality of life, both physically and psychologically, by causing pruritus, pain and contractures. Because there is a poor understanding of the complex mechanisms underlying the processes of hypertrophic scar formation, most therapeutic approaches remain clinically unsatisfactory. In this study, we found that miR-138 was downregulated and peroxisome proliferator-activated receptor (PPARβ) was inversely upregulated in hypertrophic scar tissues compared to in paired normal skin tissues.

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Epitope-based vaccines are always questioned for their cross-protection against the antigenically variable foot-and-mouth disease virus (FMDV). In this study, we proved the cross-protection effect of a multi-epitope vaccine incorporated with poly(I:C) against three topotypes of O type FMDV. A total of 45 naïve pigs were vaccinated with different doses of multi-epitope protein vaccine incorporated with poly(I:C).

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Objective: To study the effects of antisense p38α mitogen-activated protein kinase (hereinafter referred to as p38α) on myocardial cells exposed to hypoxia and burn serum.

Methods: Thirty adult SD rats were inflicted with 40% TBSA full-thickness burn on the back to obtain burn serum. The myocardial cells were isolated from 80 neonatal SD rats and cultured, then they were divided into 4 groups according to the random number table: normal control group (N, ordinary culture without any treatment), hypoxia+burn serum group (HB, exposed to hypoxia after being treated with 10% burn rat serum), hypoxia+burn serum+infection group (HBI, exposed to hypoxia and 10% burn rat serum after being infected with antisense p38α gene-carrying adenovirus), hypoxia+burn serum+empty vector infection group (exposed to hypoxia and 10% burn rat serum after being infected with adenovirus empty vector).

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Objective: To investigate the relationship between the activation of p38 mitogen-activated protein kinase (p38MAPK) in the myocardium and the apoptosis in the presence of burn serum and hypoxia.

Methods: Ventricular myocardium isolated from neonatal rats were employed in this study, and they were divided into three groups as the normal control group, with the myocardium grew naturally; burn serum+ hypoxia group, in which the myocardium was stimulated by the serum collected from the rat 6 hours after burn injury involving 40% of total body surface area (TBSA), and at the same time exposed to 1%O(2), 5%CO(2), and 94%N(2); antisense blocking group, in which rats were pretreated by AD-antisense (AS) p38α, then exposed to the same conditions as burn serum+hypoxia group. The phosphorylation of p38 in the myocardium was determined by Western blotting.

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Objective: To study the course of branches of the superficial temporal artery (BSTA) and the accompanying pattern of their veins in order to provide anatomic basis for flap design.

Methods: Head and facial part of ten adult corpses (19 sides) were dissected and photographed. The coordinate system was set up with external auditory foramen as the point of origin, aided by the graph analysis software Digimizer.

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Objective: To look for the best method of repairing nose and adjacent tissue defect after burn and observe the effect.

Methods: Twelve patients with post-burn nose and adjacent tissue defect deformities hospitalized from January 1999 to December 2008 were repaired with expanded forehead flap, pedicled upper-arm flap, axial post-auricular reversed flow island flap, and nasolabial groove flap. Among them, 4 cases with total nasal defect, 8 cases with partial nasal defect; and 3 cases were accompanied with scars on cheek, 5 cases accompanied with scars on forehead, 5 cases accompanied with upper lip ectropion and subtotal upper lip defect.

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Objective: To explore repair methods of skin and soft tissue defects in lower extremities with free latissimus dorsi flaps.

Methods: Forty-two patients with wounds and soft tissue defects in lower extremities, including 4 cases on knee, 22 cases on leg, 15 cases on ankle and foot, 1 case with extensive avulsion from knee to dorsum of foot, were hospitalized in our unit from February 1996 to February 2008. Wounds or soft tissue defects were respectively repaired with latissimus dorsi musculocutaneous flaps, latissimus dorsi muscle flaps, latissimus dorsi perforator flaps with preserved vascular sleeves, 2 double-leaf segmental latissimus dorsi compound flaps after debridement.

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Objective: To summarize methods for repair of claw hand deformity after burn.

Methods: Ninety-seven patients with 136 claw hands after burn hospitalized from May 1992 to May 2007 were repaired with skin grafting (104 hands) and transposition of skin flap (32 hands), among which 21 hands were minor-grade, 92 hands moderate, 23 hands severe. The metacarpophalangeal joint was repaired after scar release in dorsum of hand with manual extraction reduction, release of collateral ligament and joint capsula, separation of adhesion in joint, tendon lengthening for obvious contracture.

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Objective: To identify the pathological character of denatured dermis,and its turnover after autologous skin transplant.

Methods: Deep partial thickness burn wounds whose diameter was 2.5 cm were produced on the back of Sprague-Dawley (SD) rats.

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Background: Myocardial damage occurs immediately following severe burns even before significant reduction in blood volume. This phenomenon is called postburn "shock heart" ("cardiac shock"), the pathogenesis of which is unclear. This study was designed to investigate the role of antisense p38 alpha gene transfection in ameliorating hypoxia and burn serum-mediated myocardial cell injury.

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Objective: To explore a new method for the repair of the scar in the midface.

Methods: Parallel juxtaposed expansion of the skin and soft-tissue of jaw, face, neck and posterior aspect of auricle was performed to repair the scar in the midface of 15 patients. The operation consisted of two steps.

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