Publications by authors named "ZhangYu Bu"

Background: Basal cell carcinoma (BCC) is the most prevalent non-melanoma skin tumor. It commonly affects exposed areas. Currently, surgical resection is considered the primary approach for BCC treatment.

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  • Hypertrophic scars are problematic after trauma or surgery, affecting both physical appearance and mental health, leading to a need for effective treatments.
  • The study investigates the effects of topical hesperidin, a compound found in citrus fruits with potential benefits against scar formation, using rabbits with induced hypertrophic scars.
  • Results indicated that hesperidin at higher concentrations significantly improved the texture and appearance of scars and reduced the presence of fibroblasts and inflammatory cells compared to other treatments.
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We report the case of a 55-year-old man with penile squamous cell carcinoma (SCC). We found a mass in the patient's penis, which gradually increased in size. We performed a partial penectomy to remove the mass.

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  • Acute generalized exanthematous pustulosis (AGEP) is a skin condition often triggered by medications, presenting as rapid development of pustules on red skin, fever, and increased white blood cell counts.
  • A case involving a 24-year-old female treated with terbinafine for nail fungus showed AGEP symptoms shortly after starting the medication, but her condition worsened despite stopping terbinafine and starting corticosteroids.
  • Treatment with adalimumab was initiated, leading to symptom improvement, and this case highlights the rare interaction of terbinafine with AGEP unresponsive to corticosteroid treatment.
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  • SAPHO syndrome is a condition characterized by a combination of skin and joint symptoms, specifically synovitis, pustulosis, acne, hyperostosis, and osteitis, but it's rare to see major symptoms in one patient at the same time.
  • A case study of a 44-year-old man with SAPHO syndrome showed that his first symptom was palmoplantar pustulosis, and traditional treatments like anti-inflammatories weren't effective.
  • The treatment with adalimumab led to significant pain relief in his neck and back within two weeks and improvement in his skin condition after four weeks, highlighting its potential as an effective therapy for SAPHO syndrome.
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Bullous pemphigoid (BP) is an autoimmune blistering disease mainly affecting elderly individuals. Comorbidities are common in patients with BP and have been found to complicate the management and prognosis. We describe a patient with multiple comorbidities who was successfully treated with omalizumab and suggest omalizumab as a good alternative therapy for BP to prevent treatment-related complications in elderly patients with a poor general condition.

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Condyloma acuminatum (CA) is a sexually transmitted disease caused by human papillomavirus (HPV) infection, mainly by HPV DNA types 6 and 11. Except for HPV16 and HPV18, CA caused by other intermediate or high-risk subtypes is rare in clinical settings. Here, we report a case that was positive for HPV73 and 33 and negative for other common subtypes.

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Objectives: Condyloma acuminatum (CA) is a sexually transmitted disease with a high recurrence rate due to the rapid replication of human papillomavirus (HPV) and its subtle immune escape mechanism, which makes the diagnosis and treatment of CA in the male urethra particularly difficult. This study aims to evaluate the efficacy of comprehensive treatments for male urethral CA after accurate localization of warts under ultrasound guidance.

Methods: The study included 15 men with intraurethral CA.

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Condyloma acuminatum is a benign tumor principally resulting from a human papillomavirus type 6 or 11 infection. The lesions mostly damage the genital and perianal squamous epithelium and skin but occasionally emerge outside the perianal and genital regions. We studied the cases of a 29-year-old man with left nasal vestibule vegetation and a 22-year-old woman with left nipple vegetation.

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The present investigation explored the culture, isolation and characterization of hair follicle cell differentiation from umbilical cord blood mesenchymal stem cells (MSCs). Flow cytometry was used to obtain MSCs from the isolation and purification of human umbilical cord blood MSCs. Culture suspension of hair follicle organ was centrifuged and the supernatant used in the culture medium of MSCs, and the entire process of induced differentiation was recorded by photomicroscopy.

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The purpose of this study was to investigate the changes in peripheral blood regulatory T (Treg) cells, serum transforming growth factor-β1 (TGF-β1), and lymphotactin (LTN) following treatment of patients with condyloma acuminata (CA) with 5-aminolevulinic acid-photodynamic. A total of 46 patients with CA were selected as the experimental group and 43 healthy individuals were included in the control group. Before the treatment, the CA patients had a higher number of CD4CD25Foxp3 Treg cells and CD4CD25 Treg cells than the healthy group.

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Psoriasis is a common chronic inflammatory disease of the skin characterized by epidermal hyperplasia and angiogenesis. Recently, vascular endothelial growth factor receptors (VEGFRs, including VEGFR-1, VEGFR-2 and VEGFR-3) were found to be expressed in normal human epidermis and associated with proliferation and migration of keratinocytes. The purpose of this study is to investigate the expression of VEGFRs on psoriatic keratinocytes and the roles of calcium and VEGF in regulating VEGFR expression.

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Vascular endothelial growth factor (VEGF) and its receptor VEGFR-2 play important roles in mitogenesis and chemotaxis of endothelial cells. In normal human skin, VEGF is expressed and secreted by epidermal keratinocytes. Emerging data suggest that keratinocyte-derived VEGF targets other cell types besides the dermal endothelial cells.

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