Publications by authors named "Tianxiang Ouyang"

Non-coding RNAs (ncRNAs) play a critical role in the occurrence and development of numerous human diseases. Consequently, studying the associations between ncRNAs and diseases has garnered significant attention from researchers in recent years. Various computational methods have been proposed to explore ncRNA-disease relationships, with Graph Neural Network (GNN) emerging as a state-of-the-art approach for ncRNA-disease association prediction.

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Objective: To introduce our single-center experience of infant vascular tumor associated with Kasabach-Merritt phenomenon (KMP) which received combined medicine treatment with intralesional laser photocoagulation (ILP) and sclerotherapy.

Methods: A retrospective study was conducted using medical records of all children with a diagnosis of kaposiform hemangioendothelioma (KHE) or tufted angioma (TA) associated with KMP treated with medicine, intralesional laser photocoagulation (ILP), and sclerotherapy between February 2017 and November 2020. Clinical features, response to comprehensive therapy, and outcomes were recorded.

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Osteosarcoma is one of the most common primary malignancies of bone in the pediatric and adolescent populations. The morphology and size of osteosarcoma MRI images often show great variability and randomness with different patients. In developing countries, with large populations and lack of medical resources, it is difficult to effectively address the difficulties of early diagnosis of osteosarcoma with limited physician manpower alone.

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Background: Double-eyelid surgery is one of the most common cosmetic surgeries performed in Asians. The palpebral marginal incision technique (PMIT) conceals the incision scar and creates natural-looking double-eyelids. However, the amount of eyelid skin removed by conventional PMIT is limited, which potentially results in an unnatural crease or inferior skin below the palpebral crease that appears swollen.

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Background: Propranolol is used clinically to treat infantile hemangioma (IH), although the exact mechanism that underlies its effectiveness is not fully understood. The Jagged1/Notch signaling pathway is downstream of the β2-adrenergic receptor (β2-AR). Propranolol is a non-selective β2-AR blocker that was shown to inhibit demethylation adrenaline-induced Jagged1 expression.

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Background: Infantile hemangioma (IH) is characterized by proliferation and regression.

Methods: Based on the GSE127487 dataset, the differentially expressed genes (DEGs) between 6, 12, or 24 months and normal samples were screened, respectively. STEM software was used to screen the continued up-regulated or down-regulated in common genes.

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Keloids exhibit cancer-like properties without spontaneous regression and usually recur post excision. Although photodynamic therapy (PDT) is a promising treatment, details of the mechanisms remain to be elucidated. In this study, we investigated mechanisms involved in 5-Aminolevulinic Acid (5-ALA)-based PDT against keloid.

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Stem cell senescence and exhaustion are considered important drivers of organismal aging, and human adipose-derived stem cells (ADSCs) have emerged as a promising cell source for cell-based therapy. However, aging and low survival rate compromise the optimal outcome of cell-based therapy due to oxidative stress in the graft areas. Oxidative stress has long been considered to be harmful to cells, nevertheless, in this study, we found that lower concentration of hydrogen peroxide (HO) decreased the number of SA-βgal-immunopositive cells, which was ameliorated by inhibition of SIRT1.

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Background: Facial fat grafting under local anesthesia has been widely performed in outpatient departments and private settings in China. The present study aimed to evaluate the safety and efficacy of facial fat grafting under local anesthesia.

Method: A retrospective study was conducted on 155 patients who underwent facial fat grafting.

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Objective: To investigate the safe and effective treatment for painful venous malformation (VM) in limbs.

Method: (1) 97 cases with painful VM underwent MRI to detect the location of VM, as well as its size and structure, its relationship with the surrounding tissue. Statistical analysis was also performed.

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Objective: To summarize the management of infant vascular tumors with Kasabach-Merritt phenomenon (KMP) and to evaluate the effect of drug combined with sclerotherapy.

Methods: From Feb. 2007 to Nov.

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We aimed to evaluate the efficacy of combination of propranolol and sclerotherapy in treating parotid hemangiomas. Twenty-six parotid hemangiomas patients were subjected to combined treatment from January 2009 and June 2014. The effects of the therapy modality were evaluated.

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Background: Hypertrophic scars are manifestations of an abnormal process of tissue repair. Although photodynamic therapy is a promising treatment, details of the mechanisms underlying its inhibitory effects remain to be elucidated.

Methods: Fibroblasts were isolated from human hypertrophic scar specimens and subjected to photodynamic therapy; 5-aminolevulinic acid was used as a photosensitizer.

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Objective: To explore the new mechanism of propranolol for treatment of hemangioma and the effects of propranolol on proliferation of hemangioma-derived mesenchymal stem cells ( Hem- MSCs).

Methods: We isolated Hem-MSCs from hemangioma in the proliferating phase by their selective adhesion to plastic culture dishes. Immunofluorescence staining was used to examine the expression of marker antigens in Hem-MSCs.

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Kimura's disease (KD) is an uncommon, chronic inflammatory disease characterized by tumor-like lesions in the soft tissue and lymph nodes and increased peripheral blood eosinophil counts and serum immunoglobulin E (IgE). Prednisone is widely used to treat the disease. Here, we reported a 59-year-old KD patient failed to response to prednisone.

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Human embryonic stem cells (hESCs) are pluripotent cells which can give rise to almost all adult cell lineages. Culture system of hESCs is complex, requiring exogenous b-FGF and feeder cell layer. Human mesenchymal stem cells (MSCs) not only synthesize soluble cytokines or factors such as b-FGF, but also provide other mechanism which might play positive role on sustaining hESCs propagation and pluripotency.

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Propranolol has been widely used in treating infantile hemangiomas (IHs). But recurrence of IHs was found in some cases on cessation of propranolol treatment. The other is that Chinese individuals reacted to propranolol differently from American Whites.

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Unlabelled: We aimed to assess the efficacy and safety of low-dose propranolol for treatment of infantile hemangiomas (IHs) in China. Our prospective study included data from 89 patients with IH, aged 1-12 months. Plasma renin activity, angiotensin II, and aldosterone were measured before initiation of propranolol therapy.

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Objective: To distinguish non involuting congenital hemangioma (NICH) and infantile hemangioma (IH) by comparing the pathological structure and marker antigen expression.

Methods: From Jan. 2005 to Aug.

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Objective: To investigate the distribution, phenotype and development of pericytes in infantile hemangioma.

Methods: Fifty-two infantile hemangioma samples were included in our study. alpha-SMA was used as the marker antigen to observe the distribution of pericytes.

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Objective: To investigate the expression and role of glucose transporter-1 (Glut1) in infantile hemangioma.

Methods: Fifty-two samples from infantile hemangioma, 25 in cavernous venous malformation, 9 in arteriovenous malformation, 2 in capillary malformation and 5 in normal skin samples were involved in this study. The EnVision immunohistochemical stain was used to investigate the expression of Glut1 protein in these samples.

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Objective: To improve sternal elevation for pectus excavatum to be more simple, less injured and less recurrent.

Methods: We modified procedures for the sternal elevation for pectus excavatum by dispersal of the shortened fibrous bundle connection with central tendon of the diaphragm, correction of the reverse angle of sternocostales joins, transverse cuneiform anterior osteotomy of sternum and reconnection of oblique resected costal cartilage.

Results: Since March 1997, 8 children (4 - 10-year-old) with the pectus excavatum have been treated by this modified sternal elevation, 4 of them who suffer from quick heart pulse improved their heart rate immediately during the operation, all patients have less bleeding and good cosmetic appearance without any complications.

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Objective: To introduce our experience in diagnosis and treatment of 33 patients with Tessier craniofacial clefts.

Methods: 33 patients with craniofacial clefts were classified by Tessier classification. According to the type and severity of the clefts, various techniques, from simple local flap transfer to complicated osteotomy and bone grafting were used to correct the deformity in 29 patients.

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Objective: To investigate the expression of Fas/FasL in infantile hemangiomas and discuss the role of Fas/FasL in the pathologic evolution of infantile hemangioma.

Method: The EnVision immunohistochemical stain and RT-PCR technique was used to examine the expression of Fas/FasL protein and mRNA in the infantile hemangiomas.

Results: (1) In the early and middle proliferating stage, a number of infantile hemangioma cells expressed Fas.

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The aim of this study was to describe an innovation of the transposition pedicle island flap for reconstruction of the medium-sized skin defects in the face, neck and hand. Twenty-seven cases of skin tumours and scars were surgically excised and reconstructed with this island flap. ALL flap survived with primary healing postoperatively.

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