Evaluation of natural protein-based nanofiber composite photocrosslinking hydrogel for skin wound regeneration.

Protein based photocrosslinking hydrogels with nanofiber dispersions were reported to be an effective wound dressing. In this study, two kinds of protein (gelatin and decellularized dermal matrix) were modified to obtain GelMA and ddECMMA, respectively. Poly(ε-caprolactone) nanofiber dispersions (PCLPBA) and thioglycolic acid-modified chitosan (TCS) were added into GelMA solution and ddECMMA solution, respectively.

The role of vitamin D on rotator cuff tear with osteoporosis.

Backgrounds: Osteoporosis (OP) is an important risk factor for rotator cuff tears (RCTs). However, the relationship and mechanism between rotator cuff injury and osteoporosis are unclear. Therefore, to investigate association between rotator cuff injury and osteoporosis, and find clinical characteristics, bone mineral density, bone metabolism markers, and nutrient levels in rotator cuff injury patients with or without osteoporosis.

Arthroscopic Modified Double-Row Biceps Tenodesis versus Labral Repair for the Treatment of Isolated Type II SLAP Lesions in Non-Overhead Athletes.

Objective: To evaluate the postoperative efficacy and the clinical outcomes of arthroscopic modified double-row biceps tenodesis versus labral repair.

Methods: A retrospective study was conducted in 56 patients with isolated type II superior labrum anterior and posterior (SLAP) lesions from March 2015 to November 2018. Thirty patients (male:female = 17:13) were treated with labral repair, and 26 patients (male:female = 15:11) were treated with modified double-row biceps tenodesis.

Effects of preoperative serum vitamin D levels on early clinical function outcomes and the moderate-to-severe pain prevalence in postmenopausal women after primary total knee arthroplasty.

Objective: To investigate the impact of vitamin D levels on early clinical function outcomes and the potential risk factors of moderate-to-severe pain prevalence in postmenopausal women after primary total knee arthroplasty (TKA).

Methods: From April 2017 to December 2019, 226 women were retrospectively recruited. The women were divided into two groups based on their preoperative serum 25-hydroxyvitamin D levels: (1) vitamin D-sufficient group (≥30 ng/mL); (2) vitamin D-deficient group (<30 ng/mL).

MicroRNA‑218 promotes prostaglandin E2 to inhibit osteogenic differentiation in synovial mesenchymal stem cells by targeting 15‑hydroxyprostaglandin dehydrogenase [NAD(+)].

The chondrogenic differentiation of synovial mesenchymal stem cells (SMSCs) is regulated by essential transcription factors and signaling cascades. However, the precise mechanisms involved in this process remain unclear. MicroRNAs (miRs/miRNAs) are undersized non‑coding RNAs responsible for the post‑transcriptional regulation of gene expression, by binding to the 3'‑untranslated regions (3'‑UTRs) of their target mRNAs.

[CONDITIONS OF SYNOVIAL MESENCHYMAL STEM CELLS DIFFERENTIATING INTO FIBROCARTILAGE CELLS].

Objective: To explore the conditions of synovial derived mesenchymal stem cells (SMSCs) differentiating into the fibrocartilage cells by using the orthogonal experiment.

Methods: The synovium was harvested from 5 adult New Zealand white rabbits, and SMSCs were separated by adherence method. The flow cytometry and multi-directional differentiation method were used to identify the SMSCs.

Strategies to minimize hypertrophy in cartilage engineering and regeneration.

Due to a blood supply shortage, articular cartilage has a limited capacity for self-healing once damaged. Articular chondrocytes, cartilage progenitor cells, embryonic stem cells, and mesenchymal stem cells are candidate cells for cartilage regeneration. Significant current attention is paid to improving chondrogenic differentiation capacity; unfortunately, the potential chondrogenic hypertrophy of differentiated cells is largely overlooked.

[Effect of transforming growth factor beta3, bone morphogenetic protein 2, and dexamethasone on chondrogenic differentiation of rabbit synovial mesenchymal stem cells].

Objective: To study the effect of transforming growth factor beta3 (TGF-beta3), bone morphogenetic protein 2 (BMP-2), and dexamethasone (DEX) on the chondrogenic differentiation of rabbit synovial mesenchymal stem cells (SMSCs).

Methods: SMSCs were isolated from the knee joints of 5 rabbits (weighing, 1.8-2.

[In vitro differentiation of synovial-derived mesenchymal stem cells infected by adenovirus vector mediated by bone morphogenetic protein 2/7 genes into fibrocartilage cells in rabbits].

Objective: To investigate the feasibility of rabbit synovial-derived mesenchymal stem cells (SMSCs) differentiating into fibrocartilage cells by the recombinant adenovirus vector mediated by bone morphogenetic protein 2/7 (BMP-2/7) genes in vitro.

Methods: SMSCs were isolated and purified from 3-month-old New Zealand white rabbits [male or female, weighing (2.1 +/- 0.

Reduced opioid consumption and improved early rehabilitation with local and intraarticular cocktail analgesic injection in total hip arthroplasty: a randomized controlled clinical trial.

Objective: Postoperative pain after total hip arthroplasty (THA) is not well tolerated. We assessed postoperative pain relief and the need for opioid use after using a cocktail of local and intraarticular analgesic injection (LIA) after THA.

Methods: Eighty patients undergoing THA under spinal anesthesia were randomly assigned to receive either LIA or placebo.