Publications by authors named "De-Hua Zheng"

The aim of this study is to systematically summarize the available evidence regarding low-level laser therapy (LLLT) speed-up effect on dental alignment in comprehensive orthodontic treatment. An extensive electronic search was conducted in PubMed, ScienceDirect, Cochrane, Web of Science, and Scopus up to February 20, 2023. The Cochrane risk of bias tool and the Newcastle-Ottawa Quality Assessment Form were used by two authors independently to assess the risk of bias (RoB).

View Article and Find Full Text PDF

Background: Miniscrews as auxiliary anchorage devices in orthodontic treatment have definite advantages and efficacy. The aim of the present study was to investigate the scientific evidence including randomized controlled trials (RCTs) or controlled clinical trials (CCTs) to support the application of low-level laser therapy to improve miniscrews stability in orthodontic treatment.

Methods: An extensive literature research was conducted with the Cochrane Library, PubMed, EMBASE, Web of Science and ScienceDirect without language limitations.

View Article and Find Full Text PDF

Purpose: The aim of this study was to investigate the effects of triptolide on the tooth movement and root resorption in rats during orthodontic treatment.

Material And Methods: A total of 48 male Wistar rats were divided into three groups of 16 each. The right maxillary first molars of rats were drawn mesially by closed coil nickel-titanium spring with a force of 50 g.

View Article and Find Full Text PDF

Objectives: This study was performed to evaluate the effects of muscone on the proliferation, migration and differentiation of human gingival mesenchymal stem cells (GMSCs) and to explore the relevant mechanisms.

Materials And Methods: We performed studies to determine the effects and mechanisms of muscone on GMSC proliferation, migration and differentiation. We conducted CCK-8, colony formation, transwell chamber, scratch wound, alkaline phosphatase (ALP) staining and activity, and alizarin red and oil red O staining assays, as well as real-time quantitative polymerase chain reaction (qRT-PCR), to ascertain the effects of muscone on GMSC proliferation, migration and differentiation in vitro.

View Article and Find Full Text PDF

Objectives: The aim of this study is to examine the roles of erythropoietin (EPO) in regulating proliferation and osteogenic differentiation of periodontal ligament stem cells (PDLSCs) and analyze the underlying signaling of these processes.

Materials And Methods: PDLSCs were isolated and characterized. The PDLSCs were transfected with β-catenin shRNA.

View Article and Find Full Text PDF

Diabetes mellitus and periodontitis have long been considered to be biologically linked. Erythropoietin (EPO) has multiple biological functions, such as stimulating the proliferation and differentiation of erythroid progenitor cells and reducing glucose-induced oxidative stress via different mechanisms, acting as a direct antioxidant. The purposes of the study to examine the anti-oxidative effect of EPO on reducing high glucose-induced oxidative stress of hPDLSCs and provide a better understanding of the mechanism of these processes.

View Article and Find Full Text PDF

Although liver transplantation (LT) lengthens the survival time of patients with hepatocellular carcinoma (HCC), LT patients exhibit a high recurrence rate; particularly those that had advanced HCC associated with the tumor biological characteristics and long-term application of immunosuppressants. A consensus on optimal prophylaxis and treatment for recurrent HCC following LT does not currently exist. The present study retrospectively analyzed data from 36 non-University of California at San Francisco criteria-eligible patients with advanced HCC who underwent LT, and then treated them with sirolimus (SRL)-based therapy with thymalfasin and huaier granules (SRL+, n=18), or with tacrolimus-based therapy (controls; n=18).

View Article and Find Full Text PDF

Propose: To compare the changes in oral health-related quality of life(OHRQoL) among adolescent patients and adult patients during orthodontic treatment.

Methods: The clinical data were collected from 81 patients (aged 15 to 25 years old) who underwent comprehensive orthodontic treatment. The participants were divided into 2 groups: adolescent patients (n=43) and adult patients (n=38) by age.

View Article and Find Full Text PDF

The purpose of this study was to investigate the relationship between bilateral differences of upper airway and mandibular morphologic patterns in subjects with skeletal Class III mandibular deviation. 47 skeletal Class III (ANB < 0°) adult patients with and without mandibular deviation were divided into 2 groups. Bilateral differences of minimum cross-sectional area, mean cross-sectional area, volume of subdivisions (nasopharynx, palatopharynx, glossopharynx, hypopharynx) were assessed paired t test.

View Article and Find Full Text PDF

Background: The objectives of this study were to investigated changes in OHRQoL among patients with different classifications of malocclusion during comprehensive orthodontic treatment.

Methods: Clinical data were collected from 81 patients (aged 15 to 24) who had undergone comprehensive orthodontic treatment. Participants were classified 3 groups: Class I (n = 35), II (n = 32) and III (n = 14) by Angle classification.

View Article and Find Full Text PDF

Purpose: To investigate whether the psychosomatic symptoms of patients are related to the degree of cooperation.

Methods: Ninety-one malocclusion adults (31 males, 60 females, aged from 20 to 45 years) were selected and determined with Symptom Checklist-90 (SCL-90) to evaluate their psychosomatic symptoms. The inspected and filed noncooperation behaviors were examined and recorded 6 months after orthodontic treatment started.

View Article and Find Full Text PDF

Aim: To explore a prophylactic procedure to prevent splenic artery steal syndrome (SASS), as well as a therapeutic intervention to correct it.

Methods: Forty-three liver transplant patients were enrolled in a non-randomized controlled trial, with the eligible criterion that the diameter of the splenic artery is more than 5 mm and/or 1.5 times of the diameter of the hepatic artery.

View Article and Find Full Text PDF

Objective: To analyze the influence of different reactive force direction of protractions on temporomandibular joint (TMJ) by establishing a three-dimensional finite element model (FEM) of craniomaxillofacial complex.

Methods: The CT image of the head of a healthy young male volunteer was obtained.With the help of Mimics software, we established a three-dimensional finite element model of craniomaxillofacial complex which included TMJ.

View Article and Find Full Text PDF

Extracorporeal photopheresis (ECP) is an effective immunomodulatory therapy and has been demonstrated to be beneficial for graft-vs-host disease and solid-organ allograft rejection. ECP involves reinfusion of a patient's autologous peripheral blood leukocytes treated ex vivo with 8-methoxypsoralen and UVA light radiation (PUVA). Previous studies focused only on ECP treatment of recipient immune cells.

View Article and Find Full Text PDF

Aim: To investigate the effect of recipient dendritic cells (DC) loaded with PUVA-treated donor splenic lymphocytes (PUVA-SP) on CD4(+) CD25(+) regulatory T cells (Treg) and the survival time of cardiac allograft in rats.

Methods: Cardiac allografts from DA donor rats were transplanted into LEW recipient rats. Donor splenic lymphocytes were treated with 8-methoxypsoralen plus UVA irradiation (PUVA).

View Article and Find Full Text PDF
Article Synopsis
  • The study explored how dendritic cells (DCs) that have ingested photochemotherapy-treated spleen lymphocytes affect the immune response of syngeneic T cells.
  • DA rat spleen lymphocytes were treated with PUVA, leading to their early apoptosis, and these treated cells were then phagocytosed by LEW rat-derived DCs.
  • The results showed that the PUVA-treated DCs induced a reduced immune response in LEW T cells, shifting cytokine production towards a Th2 profile (IL-10 and IL-4) instead of a Th1 response.
View Article and Find Full Text PDF

International Normalized Ratio (INR), which standardizes prothrombin time (PT) during oral anticoagulation, has been extended to standardize PT in liver diseases and is included in all prognostic models of survival, the classification of CHILD-Pugh or Meld. However, the mechanisms of PT prolongation in liver diseases differ from those involved in oral anticoagulation. Our aim was to assess the validity of the INR system for patients with liver disease associated with viral hepatitis.

View Article and Find Full Text PDF

Background: Prothrombin time is widely utilized for evaluation of liver disease severity. However, its standardization of modes of reporting is not established for universal purpose. Variability in thromboplastin reagents leads to large intralaboratory and interlaboratory differences in PT results.

View Article and Find Full Text PDF

Killer cell immunoglobulin-like receptors (KIRs) are members of a group of molecules that specifically recognize HLA class I ligands and are found on subsets of human lymphopoetic cells. The number of KIR loci can vary between individuals, resulting in a heterogeneous array of possible KIR genes. The range of observed profiles has been explained by the occurrence of two haplotype families termed A and B, which can be distinguished on the basis of certain KIR sequences.

View Article and Find Full Text PDF