Background And Purpose: An inflammatory response has been associated with the development of atherosclerosis. Our aim was to clarify which atherosclerotic changes (intima-media complex thickness [IMT] increase, plaque formation, and arterial dilatation) are associated with C-reactive protein (CRP) levels and to determine whether there are any gender differences.
Methods: Carotid ultrasound and measurement of high-sensitivity CRP (hs-CRP) levels were performed in 2056 subjects selected from a general population (mean age 58.
Allergic rhinitis is an inflammatory disease of the nasal mucosa, induced by histamine, leukotrienes, and other substances released from mast cells. Fexofenadine hydrochloride, the active metabolite of terfenadine, is a novel, nonsedating antiallergic drug having H1 receptor antagonistic activity. Fexofenadine is effective for the treatment of allergic rhinitis.
View Article and Find Full Text PDFNaturally arising CD4(+)CD25(+) regulatory T (T(R)) cells are engaged in the maintenance of self tolerance and prevention of autoimmune diseases. However, accumulating evidence suggests that a fraction of peripheral CD4(+)CD25(-) T cells also possesses regulatory activity. Programmed death-1 (PD-1) is a new member of the CD28/CTLA-4 family, which has been implicated in the maintenance of peripheral self tolerance.
View Article and Find Full Text PDFJpn J Thorac Cardiovasc Surg
January 2005
Objective: The objective of the present study was to investigate the effectiveness of postoperative oral administration of cibenzoline for the prevention of atrial fibrillation (AF) in coronary artery bypass grafting (CABG).
Methods: A total of 39 patients who underwent isolated CABG from September 2000 to February 2001 and who took oral cibenzoline (300 mg per day for 10 days beginning immediately after surgery) were compared to 59 patients who underwent surgery in our department 8 months prior to the study and who did not take cibenzoline for incidence of postoperative AF. Exclusion criteria encompassed age (>80 years), low ejection fraction (<30%), high serum creatinine level (>2.
Juvenile hormones (JHs) of insects are sesquiterpenoids that regulate a great diversity of processes in development and reproduction. As yet the molecular modes of action of JH are poorly understood. The Methoprene-tolerant (Met) gene of Drosophila melanogaster has been found to be responsible for resistance to a JH analogue (JHA) insecticide, methoprene.
View Article and Find Full Text PDFLine-field Fourier-domain interferometry that is capable of a fast three-dimensional (3-D) shape measurement is proposed. This system is constructed from a combination of a conventional Fourier-domain interferometer and a one-dimensional imaging system. This system directs a line-shaped focus onto a specimen, and a two-dimensional shape can be calculated from a single-shot image of the CCD camera without any mechanical scan.
View Article and Find Full Text PDFBackground: Gut commensal microbes affect the development and activation of the mucosal and systemic immune systems. However, the exact molecular mechanism of these microbes that is involved in the development of colitis remains unclear.
Methods: The present study was conducted to determine the distinct role of the innate immune system in the development of a dextran sulfate sodium (DSS) colitis model in MyD88(-/-) mice, because myeloid differentiation protein (MyD88) is a major adaptor molecule essential for signaling via Toll-like receptors (TLRs).
Background: Heart rate recovery (HRR) after exercise, which is thought to be a marker of vagal activity, has been reported to improve after cardiac rehabilitation (CR) with exercise in patients with coronary heart disease. The aim of this study was to determine whether or not additional physical activity outside the CR program, would accelerate improvement of the HRR in male patients after coronary artery bypass grafting (CABG).
Methods And Results: Twenty male patients were enrolled in a supervised CR program at 2 weeks after CABG, and divided into an active group (walking >or=5,434 steps/day) or a less-active group.
A novel optical scheme for a phase shifting method of Fourier domain optical coherence tomography is presented. With this method we avoid a mechanical scan for phase shifting (mechanical M-scan) by using a reference beam with tilted wavefront. The principle of this system is confirmed with a simple mirror object.
View Article and Find Full Text PDFFew minutes of suspended malignant ventricular arrhythmia may be permitted for the patient with left ventricular assist system (LVAS). However, longer and continuous ventricular arrhythmia, especially ventricular fibrillation (Vf), may induce the low output of LVAS, which leads circulatory collapse immediately. Our presenting case is a female dilated cardiomyopathy patient who has been supported with LVAS.
View Article and Find Full Text PDFHuman menopausal gonadotropin (hMG, 75 IU/body/day) and a gonadotropin-releasing hormone (GnRH) agonist buserelin (1, 10, 100 microg/kg/day) were simultaneously administered to female rabbits by the subcutaneous route for 7 days, and the effects on organ weights, plasma hormones and weight of ascitic fluid were examined. Treatment with hMG increased the ovarian weight, plasma estradiol and weight of ascites, thus indicating that ovarian hyperstimulation syndrome had been induced. Simultaneous treatment with buserelin decreased the changes induced by hMG.
View Article and Find Full Text PDFIt is well known that immune responses in the intestine remain in a state of controlled inflammation, suggesting that not only active suppression by regulatory T cells plays an important role in the normal intestinal homeostasis, but also its dysregulation leads to the development of inflammatory bowel disease. In this study, we demonstrate that the CD4(+)CD25(bright) T cells reside in the human intestinal lamina propria (LP) and functionally retain regulatory activities. All human LP CD4(+) T cells regardless of CD25 expression constitutively expressed CTLA-4, glucocorticoid-induced TNFR family-related protein, and Foxp3 and proliferate poorly.
View Article and Find Full Text PDFA redox-active nucleobase analogue of a nucleotide was synthesized and incorporated into DNA using phosphoramidite chemistry. An analogue-containing oligonucleotide in the absence of a reducing reagent formed a stable duplex with a substantially higher melting temperature compared to that of a standard DNA duplex of the same length.
View Article and Find Full Text PDFIntestinal epithelial cell (IEC)-derived cytokines, such as stem cell factor (SCF), interleukin (IL)-7 and IL-15 are known to be required for the development of intestinal intraepithelial lymphocytes (IELs). A newly described cytokine, IL-18, has also been shown to be produced by intestinal epithelial cells. To demonstrate the functional effects of IL-18 on human IELs, we assessed IL-18/IL-18 receptor expression in IEC/IEL and proliferation following stimulation of intestinal IELs by IL-18.
View Article and Find Full Text PDFThe aim of this study was to evaluate the effects of (+)-(E)-6S-(2-(4-(4-fluorophenyl)-2-(1-methylethyl)-6-phenylpyridin-3-yl)ethenyl)-4R-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-one (HR780), a novel 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, on hypercholesterolemia in Watanabe heritable hyperlipidemic (WHHL) rabbits and rabbits fed a diet with 1% cholesterol, in comparison with the effects of simvastatin. Each drug was administered orally to WHHL rabbits for 24 weeks and to 1% cholesterol-fed rabbits for 10 weeks. In WHHL rabbits, HR780 at doses of 1, 2.
View Article and Find Full Text PDFClin Exp Pharmacol Physiol
December 2003
1. We have examined the effects of HR780, a novel 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor, on porcine endothelial cell (EC) injury induced by xanthine (X)/xanthine oxidase (XO), a source of superoxide anion. Furthermore, the effects of HR780 on platelet-derived growth factor (PDGF)-induced migration and fetal calf serum (FCS)-induced proliferation of rabbit smooth muscle cells (SMC) were investigated.
View Article and Find Full Text PDFMyD88 is a key adaptor molecule for signalling via Toll-like receptors (TLRs) and the response to gut commensal microbes. To investigate the role of TLRs/MyD88 pathway in the development of the gut-associated lymphoid tissue (GALT), we examined the development of Peyer's patches (PPs) and cryptopatch (CP), and also one of effector compartment, intraepithelial lymphocyte (IEL) in MyD88-/-, TLR2-/- and TLR4-/- mice. In MyD88-/- mice, the organogenesis of PPs was not disturbed.
View Article and Find Full Text PDFA newly identified costimulatory molecule, programmed death-1 (PD-1), provides a negative signal that is essential for immune homeostasis. However, it has been suggested that its ligands, B7-H1 (PD-L1) and B7-dendritic cells (B7-DC; PD-L2), could also costimulate T cell proliferation and cytokine secretion. Here we demonstrate the involvement of PD-1/B7-H1 and B7-DC interaction in the development of colitis.
View Article and Find Full Text PDFLympho-haemopoietic progenitors residing in murine gut cryptopatches (CPs) have been shown to generate intestinal extrathymic intraepithelial lymphocytes (IELs). However, the role of CPs in the development of intestinal inflammation remains unclear. To investigate the role of CPs in the development of intestinal inflammation, we examined SAMP1/Yit mice, which spontaneously develop a chronic intestinal inflammation localized to the terminal ileum and cecum.
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