Publications by authors named "Zhang Dingwei"

Background: Pelvic fractures are often associated with life-threatening damage and mechanical instability. Surgical therapy is a prior choice. To minimize surgical invasion and risk, bilateral screws combined with curved rod were applied to stabilize posterior pelvic ring.

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Article Synopsis
  • Diabetic foot ulcers (DFUs) are serious complications of diabetes, caused by factors like nerve damage and poor blood flow, leading to high healthcare costs and suffering.
  • A study involving 82 patients treated with a new technique called tibial cortex transverse transport (TTT) found that a lower level of the neutrophil-to-lymphocyte ratio (NLR) before surgery correlated with faster wound healing.
  • The findings suggest that monitoring NLR can help predict healing outcomes for DFUs, indicating that TTT is an effective treatment that should be included in clinical practices.
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Objective: The transverse tibial transfer technique is employed primarily to treat diabetic foot ulcers (DFUs), aiming to enhance leg circulation and promote new blood vessel growth. This technique is also beneficial for various conditions associated with poor blood flow in the lower extremities. However, there is no clear molecular mechanism to explain the relationship between the transverse tibial transfer technique and angiogenesis in patients with diabetic foot.

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Hypothesis: The scaling laws of drop pinch-off are known to be affected by drop compositions including dissolved polymers and non-Brownian particles. When the size of the particles is comparable to the characteristic length scale of the polymer network, these particles may interact strongly with the polymer environment, leading to new types of scaling behaviors not reported before.

Experiments: Using high-speed imaging, we experimentally studied the time evolution of the neck diameter h of drops composed of silica nanoparticles dispersed in PEO solution when extruded from a nozzle.

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Background: Tibial cortex transverse transport (TTT) surgery has become an ideal treatment for patients with type 2 severe diabetic foot ulcerations (DFUs) while conventional treatments are ineffective. Based on our clinical practice experience, the protective immune response from TTT surgery may play a role against infections to promote wound healing in patients with DFUs. Therefore, this research aimed to systematically study the specific clinical efficacy and the mechanism of TTT surgery.

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Background Hailey-Hailey disease (HHD) is a rare, autosomal dominant, hereditary skin disorder characterised by epidermal acantholysis. The HHD-associated gene ATPase calcium-transporting type 2C member 1 (ATP2C1) encodes the protein secretory pathway Ca2+ ATPase1 (SPCA1), playing a critical role in HHD pathogenesis. Aims We aimed to investigate the effect of ATP2C1 knockdown on keratinocytes that mimicked acantholysis in HHD.

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Background And Objectives: Seborrheic dermatitis is a common, chronic, and recurrent inflammatory skin disease. There are few studies on oral isotretinoin in the treatment of seborrheic dermatitis. The aim of this research was to analyze the efficacy and safety of oral isotretinoin in the treatment of patients with moderate to severe seborrheic dermatitis.

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Purpose: Cutaneous lichen planus (CLP) is an autoinflammatory skin disorder, and it is associated with metabolic syndrome. Wingless-type mouse mammary tumor virus integration site family member 5a (Wnt5a) is a potential factor in metabolic complications and it was shown to be upregulated in CLP lesions. Whether Wnt5a is altered in the circulation of patients with CLP is unclear.

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Purpose: Psoriasis is a systemic, chronic and inflammatory condition. The exact pathogenesis is unclear. The abnormal expression of Wnt5a pathway in psoriasis vulgaris has been confirmed.

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Background And Aims: Porokeratosis (PK) is a heterogeneous group of cutaneous keratinization disorders and has five clinical subtypes. DSAP is the most common clinical subtype and is characterized by multiple small, annular, anhidrotic, keratotic lesions predominantly on sun-exposed areas of the skin. It is an autosomal dominantly inherited epidermal keratinization disorder.

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Purpose: To summarize the evolution of Ilizarov technology in China, highlight important milestones, introduce the atmosphere of the era concerning the first uses and development of this technology, and share Chinese modification and experience in this field.

Method: A thorough interview with senior ASAMI members of China and literature search and physical books in libraries was undertaken to summarize the history of Ilizarov technology in China.

Results: The formal development of Ilizarov technology began when professor Ilizarov himself came to Beijing (1991) and gave a speech.

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Background: MIR155HG is a long non-coding RNA (lncRNA) that has been shown to be dysregulated in a range of tumor types, but the functions of this lncRNA in melanoma remain to be explored.

Objectives: We explored the functions of lncRNA MIR155HG in melanoma progression.

Methods: The expression of miR155HG was analyzed in clinical melanoma.

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Objective: To explore the causes and management of the complications in diabetic foot treated with tibial transverse transport (TTT).

Methods: Between September 2015 and September 2019, 196 patients with diabetic foot were treated with TTT. There were 109 males and 87 females, with an average age of 67.

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Background: Familial benign chronic pemphigus, also known as Hailey-Hailey disease (HHD), is a clinically rare bullous Dermatosis. However the mechanism has not been clarified. The study aim to detect novel mutations in exons of ATP2C1 gene in HHD patients; to explore the possible mechnism of HHD pathogenesis by examining the expression profile of hSPCA1, miR-203, p63, Notch1 and HKII proteins in the skin lesions of HHD patients.

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Psoriasis is a multifactorial, recurring, and chronic inflammatory skin disease characterized by hyperproliferation of keratinocytes. Evidence is rapidly accumulating for the role of microRNAs in psoriasis. The object of the study was to explore the functions and precise mechanism of miR-142-3p in human keratinocyte HaCaT cells in the presence of M5.

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To investigate the effects of chemerin on helper T cells 9 (Th9)/regulatory T cells (Treg) in patients with psoriasis and the potential molecular mechanisms.
 Methods: Twenty-five patients with psoriasis and twenty healthy volunteers were selected for this study. CD4+ T cells were isolated from peripheral blood of samples by magnetic bead separation.

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Benign chronic familial pemphigus or Hailey-Hailey disease (HHD, OMIM 169600) is a rare, autosomal dominant blistering skin disorder characterized by suprabasal cell separation (acantholysis) of the epidermis. To date, the proteomic changes in skin lesions from HHD patients has not been reported yet. In this study, a sample of skin lesions from HHD patients was collected for isobaric tags for relative and absolute quantitation to analyze proteome changes compared with unaffected individuals.

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Psoriasis is a chronic disease which carries the emotional and social burden, promotes joint disability and raises comorbidity possibility in patients. Obesity is closely correlated with the occurrence of psoriasis and adipokines produced by adipose tissues were found to be critical culprits. Chemerin is one of them and its expression was increased in patients with psoriatic arthritis.

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Metformin exhibits antiproliferative and proapoptotic effects in a variety of diseases, characterized by malignant and nonmalignant hyperplastic cells; however, the underlying molecular mechanism of metformin in psoriasis has not been elucidated. In the current study, we found that after metformin treatment the proliferation of human immortalized keratinocytes (HaCaT) was significantly inhibited, while cell apoptosis was increased in a dose-dependent manner, accompanied with enhanced protein expression of acyl-coenzyme A dehydrogenase 10 (ACAD10). Furthermore, mechanism analysis revealed that ACAD10 expression is induced by downregulated activities of mechanistic target of rapamycin 1 (mTORC1) signaling rather than AMP-activated protein kinase signaling.

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Objective: To discuss the role of the bone suture anchors for repair of avulsed deep radioulnar ligaments in maintaining the rotatory stability of the distal radioulnar joint.

Methods: Nine upper limbs specimens were selected from fresh adult cadavers to make wrist joint-bone capsular ligaments complex specimen. All the specimens were tested under conditions of intact (normal group), deep radioulnar ligaments injury (injury group), and deep radioulnar ligaments injury repaired with anchoring (repair group).

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Both acitretin and methotrexate are effective in ameliorating psoriatic lesion. However, their combination has been seldom reported in the treatment of psoriasis because of the warning regarding the potential hepatotoxicity of the drug interactions. This study was designed to investigate the effectiveness of such combination therapy for psoriasis vulgaris, and the potential benefit as well as side effect during the treatment.

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MicroRNAs (miRNAs) have emerged as critical regulators for malignant melanoma development. miR-485-5p has been suggested as a tumor-suppressive miRNA in many types of human malignancies. However, the role of miR-485-5p in melanoma remains unknown.

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Objective: To evaluate the effectiveness of Sauvé-Kapandji procedure in the treatment of traumatic ulnar styloid impaction syndrome.

Methods: Between June 2010 and January 2013, 12 patients with traumatic ulnar styloid impaction syndrome were treated by Sauvé-Kapandji procedure. There were 4 men and 8 women, with an average age of 58.

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