Unlabelled: Diabetes mellitus comprises a multiple metabolic disorder that affects millions of people worldwide and consequentially poses challenges for clinical treatment. Among the various complications, diabetic ulcer constitutes the most prevalent associated disorder and leads to delayed wound healing. To enhance wound healing capacity, we developed structurally stabilized epidermal growth factor (ST-EGF) and basic fibroblast growth factor (ST-bFGF) to overcome limitations of commercially available EGF (CA-EGF) and bFGF (CA-bFGF), such as short half-life and loss of activity after loading onto a matrix.
View Article and Find Full Text PDFA new phenolic amide, named cis-terrestriamide (7), together with ten known compounds (1-6, 8-11), were isolated from the methanolic extract of the fruits of Tribulus terrestris. The structure of 7 was elucidated on the basis of extensive analyses of 1D and 2D nuclear magnetic resonance spectroscopic and high resolution mass spectrometry data. Compounds 1, 2, 5, 6, 8, 9, and 11 exhibited inhibitory effects on the lipopolysaccharide-stimulated nitric oxide production in RAW 264.
View Article and Find Full Text PDFPurpose: To show the effectiveness of magnetic resonance imaging (MRI) for the detection of tram track lesions in the ankle compared with ankle arthroscopy.
Methods: We retrospectively assessed all patients who underwent arthroscopic ankle surgery between January 2013 and July 2015. Patients with anterior impingement spurs were included, but those with an osteochondral lesion or arthritis were excluded.
Purpose: To perform a systematic review comparing the clinical scores, union rate, complications, reoperations, hospital stay, and operation time between open ankle arthrodesis (OAA) and arthroscopic ankle arthrodesis (AAA).
Methods: We conducted a comprehensive search in the MEDLINE, Embase, and Cochrane Library databases. Only comparative studies were included in this meta-analysis.
To the best of our knowledge, no studies have yet examined the electrostatic interaction of polyelectrolytes with electrolyte drugs for the treatment of rheumatoid arthritis (RA). Here, an injectable, electrostatically interacting drug depot is described. We prepared methoxy polyethylene glycol-b-poly(ε-caprolactone)-ran-poly(l-lactic acid) (MC) diblock copolymers with a carboxylic acid group (MC-C) at the pendant position.
View Article and Find Full Text PDFBackground: The mobile-bearing Salto total ankle prosthesis has been reported to have promising outcomes. However, clinical reports on this prosthesis are few, and most have been published by the inventors and disclosed consultants.
Methods: We retrospectively reviewed 59 patients who received Salto prosthesis unilaterally.
Although many have studied the effects of pulsatile flow on extracorporeal circulation, its advantages remain controversial. One reason for this situation is that in most studies, pulsatility was evaluated using an in vitro model system. The most serious disadvantage of such model systems is that they lack consideration of anatomical variations due to the use of a straight tubing line to mimic the aorta.
View Article and Find Full Text PDFJ Microbiol Biotechnol
January 2018
Isoflavone itself is less available in the body without the aid of intestinal bacteria. In this study, we searched for isoflavone-transforming bacteria from human fecal specimens ( = 14) using differential selection media. Isoflavone-transforming activity as the production of dihydrogenistein and dihydrodaidzein was assessed by high-performance liquid chromatography and we found , named vitaP1, through 16S rDNA sequence analysis.
View Article and Find Full Text PDFInsulin resistance, a key etiological factor in metabolic syndrome, is closely linked to ectopic lipid accumulation and increased intracellular Ca concentrations in muscle and liver. However, the mechanism by which dysregulated intracellular Ca homeostasis causes insulin resistance remains elusive. Here, we show that increased intracellular Ca acts as a negative regulator of insulin signaling.
View Article and Find Full Text PDFTriclosan (TCS), an antimicrobial chemical with potential endocrine-disrupting properties, may pose a risk to early embryonic development and cellular homeostasis during adulthood. Here, we show that TCS induces toxicity in both the nematode C. elegans and human mesenchymal stem cells (hMSCs) by disrupting the SKN-1/Nrf2-mediated oxidative stress response.
View Article and Find Full Text PDFAim: This study evaluated new bone formation activities and trabecular bone microarchitecture within the highly porous region of Trabecular Metal™ Dental Implants (TM) and between the threads of Tapered Screw-Vent® Dental Implants (TSV) in fresh canine extraction sockets.
Materials And Methods: Eight partially edentulated dogs received four implants (4.1 mmD × 13 mmL) bilaterally in mandibular fresh extraction sockets (32 TM, 32 TSV implants), and allowed to heal for 2, 4, 8, and 12 weeks.
Although the da Vinci Single-Site silicone port allows exact alignment and effective triangulation of instruments, it also has drawbacks. We introduce an alternative docking technique using the Glove port. From April 2014 to December 2016, respective 50 patients of the conventional silicone port and the glove port group were compared.
View Article and Find Full Text PDFPoly(propylene fumarate) (PPF) has known to be a good candidate material for cartilage tissue regeneration because of its excellent mechanical properties during its degradation processes. Here, we describe the potential application of PPF-based materials as 3D printing bioinks to create macroporous cell scaffolds using micro-stereolithography. To improve cell-matrix interaction of seeded human chondrocytes within the PPF-based 3D scaffolds, we immobilized arginine-glycine-aspartate (RGD) peptide onto the PPF scaffolds.
View Article and Find Full Text PDFClin Biomech (Bristol)
October 2017
Background: Primary stability of a dental implant system is an essential factor to maintain its long-term success. Thus, the objective of this study was to examine whether primary stability is different between threaded and porous dental implant systems placed in artificial bone blocks and human cadaveric mandibular bone.
Materials And Methods: Forty-two threaded and 42 highly porous dental implants were placed in artificial polyurethane bone foams with 7 different thicknesses (3.
The swelling properties and thermal transition of hydrogels can be tailored by changing the hydrophilic-hydrophobic balance of polymer networks. Especially, poly(-isopropylacrylamide) (PNIPAm) has received attention as thermo-responsive hydrogels for tissue engineering because its hydrophobicity and swelling property are transited around body temperature (32 °C). In this study, we investigated the potential of poly(ethylene glycol) diacrylate (PEGDA) as a hydrophilic co-monomer and crosslinker of PNIPAm to enhance biological properties of PNIPAm hydrogels.
View Article and Find Full Text PDFWe evaluated the association between histologic grade of hepatocellular carcinoma (HCC) and degree of HCC enhancement on Gd-EOB-DTPA (Gadoxetic acid, Primovist)-enhanced magnetic resonance images (MRI) in HCC patients.A total of 121 patients who underwent curative surgical resection for HCC at our institution between January 2012 and March 2015 were retrospectively analyzed. Gadoxetic acid enhanced MRI was performed in all patients before surgery.
View Article and Find Full Text PDFThe aims of this study were to examine multi-generational reproductive toxicity and metabolism disturbances in Oryzias latipes exposed to 0.3, 3, and 30mg/L PFOA for 259-day. The highest concentration of PFOA suppressed fecundity over three generations from F0 to F2 and sac-fry survival rate in F2 generation, indicating that PFOA resulted in multi-generational reproductive toxicity (p<0.
View Article and Find Full Text PDFKnee Surg Sports Traumatol Arthrosc
July 2018
Purpose: The purpose of this study is to propose recommendations for the treatment of patients with chronic lateral ankle instability (CAI) based on expert opinions.
Methods: A questionnaire was sent to 32 orthopaedic surgeons with clinical and scientific experience in the treatment of CAI. The questions were related to preoperative imaging, indications and timing of surgery, technical choices, and the influence of patient-related aspects.
Although tachycardia-induced cardiomyopathy (TIC) due to atrial fibrillation occurs frequently, it is under-recognized in clinical settings. TIC has a wide range of clinical manifestations, from asymptomatic tachycardia to cardiomyopathy leading to end stage heart failure. We present a case of a 48year-old-woman who presented as cardiogenic shock, and rapidly progressed to cardiac arrest from recently diagnosed but undertreated atrial fibrillation, resulting TIC in the emergency department (ED).
View Article and Find Full Text PDFDevelopment of artificial cell models requires encapsulation of biomolecules within membrane-bound compartments. There have been limited studies of using mammalian cell-free expression (CFE) system as the 'cytosol' of artificial cells. We exploit glass capillary droplet microfluidics for the encapsulation of mammalian CFE within double emulsion templated vesicles.
View Article and Find Full Text PDFTo develop a biodegradable polymer possessing elasticity and flexibility, we synthesized MPEG-b-(PCL--PLA) copolymers (PCLA), which display specific rates of flexibility and elasticity. We synthesize the PCLA copolymers by ring-opening polymerization of ε-caprolactone and l-lactide. PCLA copolymers of various compositions were synthesized with 500,000 molecular weight.
View Article and Find Full Text PDFDexmedetomidine (Dex), a highly selective α2-adrenoceptor agonist, attenuates inflammatory responses induced by lipopolysaccharide (LPS) and induces sedative and analgesic effects. Administration of Dex also reduces salivary secretion in human subjects and inhibits osmotic water permeability in rat cortical collecting ducts. However, little is known about the mechanisms underlying the effects of Dex on salivary glands fluid secretion.
View Article and Find Full Text PDFBackground: The purpose of this retrospective study was to determine whether RFA could provide an alternative treatment modality for selected patients who are not candidates for hepatic resection.
Methods: A total of 18 consecutive patients with liver metastases alone from gastric cancer treated with radiofrequency ablation (RFA, n = 11) or hepatic resection (HR, n = 7) at Seoul St. Mary's Hospital, Korea, between January 2000 and September 2014, were enrolled.
Aim: To evaluate the prognostic value of the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in patients with colorectal cancer (CRC).
Methods: Between April 1996 and December 2010, medical records from a total of 1868 patients with CRC were retrospectively reviewed. The values of simple inflammatory markers including NLR and PLR in predicting the long-term outcomes of these patients were evaluated using Kaplan-Meier curves and Cox regression models.