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Kawashiri S, Ueki Y, Migita K, Nakamura H, Aoyagi K, Kawakami A. Baseline low modified health assessment questionnaire (MHAQ) predicts the state of remission estimated by clinical disease activity index and MHAQ at 1 year in tocilizumab-treated rheumatoid arthritis patients. Clin Exp Rheumatol 2014; 32:445. [PMID: 24850342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 01/09/2014] [Indexed: 06/03/2023]
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52
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Kameda H, Kanbe K, Sato E, Ueki Y, Saito K, Nagaoka S, Hidaka T, Atsumi T, Tsukano M, Kasama T, Shiozawa S, Tanaka Y, Yamanaka H, Takeuchi T. SAT0131 Continuation/discontinuation of methotrexate and clinical response to etanercept determine the radiographic progression/repair in patients with rheumatoid arthritis: A subanalysis of 52-week results from the JESMR study:. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.3078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Okada A, Kawakami A, Fukuda T, Hidaka T, Ishii T, Ueki Y, Kodera T, Nakashima M, Takahashi Y, Honda S, Horai Y, Koga T, Watanabe R, Okuno H, Eguchi K. THU0121 Characteristic of the Japanese Patients with Rheumatoid Arthritis (RA) of Rapid Radiographic Progression (RRP) Treated with Synthetic Disease Modifying Anti-Rheumatic Drugs (DMARDS) in Daily Practice: A Large-Scale Prospective Longitudinal Cohort Study. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kawashiri SY, Ueki Y, Migita K, Matsuoka N, Mizokami A, Mine M, Fujikawa K, Aramaki T, Nakamura H, Eguchi K, Kawakami A. AB0574 Evaluation of the efficacy of tocilizumab toward the patients with active rheumatoid arthritis of nagasaki prefecture, japan. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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55
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Nakamura H, Ueki Y, Horikami K, Miyake S, Hirao K, Tominaga M, Eguchi K. Vasculo–Behçet's syndrome with widespread arterial involvement. Mod Rheumatol 2014; 11:332-5. [DOI: 10.3109/s10165-001-8065-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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56
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Ashizuka A, Ueki Y, Aso T, Matsuhashi M, Fukuyama H, Mima T. P 70. The role of parietal cortex in awareness of motor intention – human rTMS study. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2013.04.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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57
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Smolentsev S, Kunugi T, Messadek K, Yokomine T, Young J, Yuki K, Ueki Y, Sketchley T, Li FC, Morley N, Abdou M. Status of “TITAN” Task 1–3 “Flow Control and Thermofluid Modeling”. FUSION ENGINEERING AND DESIGN 2012. [DOI: 10.1016/j.fusengdes.2012.02.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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58
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Ueki Y, Mima T, Kawashima S, Matsukawa N, Fukuyama H, Ojika K. P22-23 Different dopaminergic modulation to motor cortical plasticity in Parkinson's disease and multiple system atrophy. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60973-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ueki Y, Sakamoto N, Sato M. Cyclic Force Applied to FAs Induces Actin Recruitment Depending on the Dynamic Loading Pattern. Open Biomed Eng J 2010; 4:129-34. [PMID: 21611138 PMCID: PMC3099487 DOI: 10.2174/1874120701004010129] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2010] [Revised: 05/03/2010] [Accepted: 05/08/2010] [Indexed: 01/16/2023] Open
Abstract
Mechanical forces acting on focal adhesions (FAs) are believed to be an important determinant for cytoskeletal reorganization. However, the effect of the temporal pattern of forces on cellular responses has not been elucidated. In the present study, we examined the responses of FAs to locally-applied cyclic forces. Magnetic micro beads coated with fibronectin were attached to the apical surface of endothelial cells and continuous or cyclic forces at frequencies of 0.1-10 Hz with duty cycles of 0-100% were applied to the beads using a newly developed electromagnetic tweezer. A significant increase in actin recruitment around the beads was observed when cyclic forces at 1-2 Hz and 25-50% duty cycles were applied. This tendency disappeared upon modification of myosin activity. These results indicate that the sensitivity to temporal patterns of forces is detemined by the viscoelastic properes of FAs and depends on myosin activity.
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Takeda T, Tamada M, Seko N, Ueki Y. Ion exchange fabric synthesized by graft polymerization and its application to ultra-pure water production. Radiat Phys Chem Oxf Engl 1993 2010. [DOI: 10.1016/j.radphyschem.2009.08.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nakamura H, Kawakami A, Ida H, Origuchi T, Matsuoka N, Tsuboi M, Furuyama M, Mizokami A, Tsukada T, Nakashima M, Ejima E, Hamasaki K, Aoyagi K, Uetani M, Fukuda T, Honda S, Urayama S, Kawabe Y, Ueki Y, Mine M, Eguchi K. Clinical significance of anti‐citrullinated peptide antibody in Japanese patients with established rheumatoid arthritis. Scand J Rheumatol 2009; 34:489-90. [PMID: 16393775 DOI: 10.1080/03009740510026706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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63
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MIma T, Ueki Y, Koganemaru S, Ali D, Nagamine T, Fukuyama H. Aging alters human primary motor cortex (M1) plasticity produced by paired associative stimulation (PAS). Brain Stimul 2008. [DOI: 10.1016/j.brs.2008.06.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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64
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Kang S, Wasaka T, Shamim E, Auh S, Ueki Y, Lopez G, Kida T, Jin S, Hallett M. Sequence effect in Parkinson`s disease: placebo-controlled, four-way crossover study of levodopa and rTMS. Brain Stimul 2008. [DOI: 10.1016/j.brs.2008.06.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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65
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Ueki Y, Sagawa A, Tanimura K, Yamada A, Yamamoto K, Tsuda H, Tohma S, Suzuki K, Tominaga M, Kawabe Y, Mine M, Honda S, Tsukano M, Nakamura T, Hidaka T, Eguchi K. A multicenter study of leukocytapheresis in rheumatoid arthritis. Clin Exp Rheumatol 2007; 25:810-816. [PMID: 18173913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To evaluate the efficacy and safety of leukocytapheresis (LCAP) in patients with rheumatoid arthritis (RA) that is refractory to disease modifying antirheumatic drugs (DMARDs), we conducted a prospective, multicenter, open-label clinical trial. METHODS We enrolled 38 active RA patients, including 32 patients who showed an inadequate response to > or = 2 DMARDs and 6 patients with rapidly progressive RA. All patients continued drug therapy and were treated with 5 LCAP sessions conducted at 1-week intervals. The clinical response was evaluated at baseline before starting LCAP and at 4 weeks after the completion of all the LCAP sessions using the American College of Rheumatology (ACR) criteria and the 28-joint disease activity score (DAS28) of the European League Against Rheumatism (EULAR). RESULTS Of the 35 patients who fulfilled the study's eligibility criteria, 24 (69%), 10 (29%), and 23 (66%) patients achieved 20% (ACR20), 50% (ACR50), and DAS28-C-reactive protein (CRP) EULAR improvement, respectively. The mean DAS28-CRP score of the 35 patients decreased significantly from 5.99 +/- 0.92 at baseline to 4.54 +/- 1.39 after treatment. Comparison analysis of the ACR20 responders and non-responders to LCAP revealed that 22 of 24 responders (92%) concomitantly received methotrexate, whereas significantly fewer, that is, 6 of 11 non-responders (55%) received methotrexate. Less frequent and transient mild-to-moderate adverse events, including nausea and headache, were seen in 12 of 189 LCAP sessions (6.3%). CONCLUSION These results demonstrate the usefulness of LCAP in combination with DMARDs, particularly methotrexate, as an effective and safe treatment for refractory RA.
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Begum T, Mima T, Kotb M, Ueki Y, Fukuyama H, Nagamine T. Effect of movement on afferent inhibition of the motor cortex excitability. Clin Neurophysiol 2007. [DOI: 10.1016/j.clinph.2007.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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67
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Oishi N, Mima T, Ishii K, Bushara KO, Hiraoka T, Ueki Y, Fukuyama H, Hallett M. Neural correlates of regional EEG power change. Neuroimage 2007; 36:1301-12. [PMID: 17524671 DOI: 10.1016/j.neuroimage.2007.04.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2005] [Revised: 04/01/2007] [Accepted: 04/07/2007] [Indexed: 11/26/2022] Open
Abstract
To clarify the physiological significance of task-related change of the regional electroencephalogram (EEG) rhythm, we quantitatively evaluated the correlation between regional cerebral blood flow (rCBF) and EEG power. Eight subjects underwent H2 15O positron emission tomography scans simultaneously with EEG recording during the following tasks: rest condition with eyes closed and open, self-paced movements of the right and left thumb and right ankle. EEG signals were recorded from the occipital and bilateral sensorimotor areas. Cortical activation associated with EEG rhythm generation was studied by the correlation between rCBF and EEG power. There were significant negative correlations between the sensorimotor EEG rhythm at 10-20 Hz on each side and the ipsilateral sensorimotor rCBF and between the occipital EEG rhythm at 10-20 Hz and the occipital rCBF. The occipital EEG rhythm showed a positive correlation with the bilateral medial prefrontal rCBF, while the right sensorimotor EEG rhythm showed a positive correlation with the left prefrontal rCBF. In conclusion, decrease in the regional EEG rhythm at 10-20 Hz might represent the neuronal activation of the cortex underlying the electrodes, at least for the visual and sensorimotor areas. The neural network including the prefrontal cortex could play an important role to generate the EEG rhythm.
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Sano D, Ueki Y, Watanabe T, Omura T. Membrane separation of indigenous noroviruses from sewage sludge and treated wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2006; 54:77-82. [PMID: 17037136 DOI: 10.2166/wst.2006.451] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In this study, feasibility of membrane separation for the removal of indigenous noroviruses (NVs) is evaluated. The indigenous NV gene was never detected from ultrafiltration (UF) permeates of sewage sludge and treated wastewater. Indigenous NV gene was also not detected from permeates of sewage sludge and treated wastewater by microfiltration (MF) with a pore size of 0.1 microm (MF0.1). Even though the pore size of MF (0.1 microm) was much larger than the diameter of virus particle (approximately 30-40nm), more than 4-log10 reduction value (LRV) at maximum was achieved by membrane separation with MF0.1. NV genes were often detected from permeates of sewage sludge and treated wastewater by MF with a pore size of 0.45 microm (MF0.45), although the maximum log10 reduction values were more than 3.59 for sewage sludge and more than 2.90 for treated wastewater. It is important to verify factors determining the removal efficiency of viruses with MF membranes.
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Ueki Y, Mima T, Oga T, Ikeda A, Hitomi T, Fukuyama H, Nagamine T, Shibasaki H. Dominance of ipsilateral corticospinal pathway in congenital mirror movements. J Neurol Neurosurg Psychiatry 2005; 76:276-9. [PMID: 15654052 PMCID: PMC1739493 DOI: 10.1136/jnnp.2004.040949] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To clarify the mechanism of congenital mirror movements. DESIGN The triple stimulation technique (TST) and the silent period were used to investigate a patient with congenital mirror movements. The TST was used to calculate the ratio of ipsilateral to contralateral corticospinal tracts from the two hemispheres to the spinal motor neurones. RESULTS Transcranial magnetic stimulation over unilateral M1 induced larger ipsilateral than contralateral motor evoked potentials on both sides. Only 9% of spinal motor neurones innervating the abductor digitorum minimi were excited by contralateral primary motor cortex (M1) stimulation, while 94% were excited by the ipsilateral M1 stimulation. The silent period was examined during mirror movements and with voluntary contraction of the right first dorsal interosseus mimicking mirror movements. Left M1 stimulation (through the crossed corticospinal tract) did not show any difference in silent period between the two conditions, while right M1 stimulation (through the uncrossed tract) caused a longer silent period during mirror movements than during voluntary contractions. CONCLUSIONS The results suggest that mirror movements may be caused by a strong connection between ipsilateral M1 and the mirror movements conveyed through a dominant ipsilateral corticospinal pathway.
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Ueki Y, Akiyama K, Watanabe T, Omura T. Genetic analysis of noroviruses taken from gastroenteritis patients, river water and oysters. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2004; 50:51-56. [PMID: 15318486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
As oysters are eaten raw in Japan, their contamination with the non-bacterial agent of gastroenteritis has become a serious health problem. As it is well known that oysters tend to concentrate noroviruses (NV) in their digestive diverticula, NV may be linked with the acute gastroenteritis. However, since NV cannot be cultivated in cell cultures, and they have genetic diversity, the behaviour of NV in the aquatic environment is little known. In this study, NV samples were taken from gastroenteritis patients; from the river flowing into the oyster-farming area; and from oysters harvested from that river. Genetic identities of NV samples were analysed in capsid and RNA-dependent RNA polymerase (RdRp) regions respectively. In both regions, strains taken from patients were >96% identical with those from river and oyster samples. This proved that oysters were contaminated with NV excreted from patients with gastroenteritis.
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Matsumoto K, Sera Y, Ueki Y, Inukai G, Niiro E, Miyake S. Comparison of serum concentrations of soluble adhesion molecules in diabetic microangiopathy and macroangiopathy. Diabet Med 2002; 19:822-6. [PMID: 12358868 DOI: 10.1046/j.1464-5491.2002.00799.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS To clarify the correlation between serum concentrations of soluble adhesion molecules and diabetic microangiopathy or macroangiopathy in patients with Type 2 diabetes. METHODS Patients with diabetic retinopathy and intima-media thickness of common carotid artery (CCA-IMT) < 1.1 mm were classified as the microangiopathy group (n = 62). Patients with CCA-IMT > or = 1.1 mm and without retinopathy were classified as the macroangiopathy group (n = 95). Patients with CCA-IMT < 0.9 mm and without retinopathy were assigned to the no complications group (n = 139). Clinical characteristics and soluble intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and E-selectin levels were compared between the groups. RESULTS Patients with microangiopathy had a significantly longer duration of diabetes, were hypertensive and more likely to have a positive family history of diabetes than the control group. Patients with macroangiopathy were more likely to be smokers, hypertensive, and have a family history of hypertension. Soluble ICAM-1, VCAM-1, and E-selectin levels were significantly higher in the microangiopathy group than in the control group. Soluble VCAM-1 and E-selectin levels, but not ICAM-1 levels, were significantly elevated in the macroangiopathy group. These results were unchanged after adjustment for age, sex, duration of diabetes, blood pressure, HbA1c, HDL-cholesterol, and smoking status. CONCLUSIONS Our results suggest that soluble adhesion molecules are related to both diabetic micro- and macroangiopathy. The relative contributions of adhesion molecules may be greater in the former than latter patients with Type 2 diabetes.
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Ueki Y, Isozaki E, Miyazaki Y, Koide R, Shimizu T, Yagi K, Hirai S. Clinical and neuroradiological improvement in chronic acquired hepatocerebral degeneration after branched-chain amino acid therapy. Acta Neurol Scand 2002; 106:113-6. [PMID: 12100372 DOI: 10.1034/j.1600-0404.2002.01230.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We report two patients with chronic acquired hepatocerebral degeneration (CAHD) who showed neurological and radiological improvement after the administration of branched-chain amino acids (BAA). The first patient with chronic hepatitis C presented with progressive parkinsonism for 7 months, whereas the second patient with liver cirrhosis presented with progressive ataxia for 15 months. T1-weighted magnetic resonance imaging (MRI) showed symmetric high intensity signals in the lenticular nuclei in both patients. In the first patient, single photon emission computed tomography (SPECT) disclosed a marked decrease in cerebral blood flow in the parieto-occipital regions. In the second patient, T2-weighted MRI demonstrated symmetric high intensity signals in the deep cerebral and cerebellar white matter. After the administration of BAA, their neurological signs and radiological abnormalities markedly improved in both patients. CAHD might be a reversible and treatable disorder where aromatic amino acids are deeply involved in its pathogenesis.
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Ueki Y, Nakamura H, Matsumoto K, Tominaga T, Miyake S, Kita Y, Katayama Y, Fukuyama S, Hirasawa Y, Yoshida K, Eguchi K. NOR-1: a nitric oxide releasing agent for calibrating low levels of nitric oxide by the chemiluminescence method. Blood Coagul Fibrinolysis 2002; 13:75-80. [PMID: 11914648 DOI: 10.1097/00001721-200203000-00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Nitric oxide (NO) is formed in small amounts in vivo and is rapidly oxidized by interacting with oxygen, making measurement of its level difficult. The chemiluminescence assay is the most widely used method for detecting NO and is extremely sensitive to very small amounts of NO. However, it is difficult to prepare small amounts of NO to be used as a standard for NO analysis. NOR-1, a derivative of NOR-3, is a newly discovered NO donor with rapid NO-releasing activity. We assessed the dynamics of NO release and decomposition using NOR-1. Our results demonstrate that NOR-1 is stable in dimethylsulfoxide (DMSO) and is able to dilute at lower concentration (to picomolar levels) by DMSO without decomposition. NOR-1 released persistently 1.4 more excess of NO with 15 min of incubation. There was a linear relationship between the concentration of NOR-1 and that of NO released from NOR-1 (r=0.997) These findings suggest that NOR-1 is a useful reagent for the calibration of lower NO detection.
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Tokunaga T, Hume WE, Umezome T, Okazaki K, Ueki Y, Kumagai K, Hourai S, Nagamine J, Seki H, Taiji M, Noguchi H, Nagata R. Oxindole derivatives as orally active potent growth hormone secretagogues. J Med Chem 2001; 44:4641-9. [PMID: 11741481 DOI: 10.1021/jm0103763] [Citation(s) in RCA: 234] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of substituted oxindole derivatives was synthesized and evaluated for growth hormone (GH) releasing activity using cultured rat pituitary cells. (+)-6-Carbamoyl-3-(2-chlorophenyl)-(2-diethylaminoethyl)-4-trifluoromethyloxindole (SM-130686, 37S) was found to have potent activity (EC(50) = 3.0 nM), while the other enantiomer 37R had reduced activity. The absolute configuration of 37S was confirmed by X-ray crystallographic analysis. Compound 37S showed a good pharmacokinetic profile in rats with 28% oral bioavailability at 10 mg/kg and excellent in vivo activity as evidenced by a significant weight gain after 4 days of oral administration at 10 mg/kg twice a day. Compound 37S displaced the binding of (35)S-MK-677 to human GHS-R with an IC(50) value of 1.2 +/- 0.2 nM.
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MESH Headings
- Administration, Oral
- Animals
- Biological Availability
- Body Weight/drug effects
- CHO Cells
- Cricetinae
- Crystallography, X-Ray
- Ethylamines/chemical synthesis
- Ethylamines/chemistry
- Ethylamines/pharmacology
- Female
- Growth Hormone/metabolism
- Human Growth Hormone/metabolism
- Humans
- In Vitro Techniques
- Indoles/chemical synthesis
- Indoles/chemistry
- Indoles/pharmacology
- Male
- Models, Molecular
- Molecular Conformation
- Pituitary Gland, Anterior/cytology
- Pituitary Gland, Anterior/metabolism
- Rats
- Rats, Inbred F344
- Rats, Wistar
- Receptors, Cell Surface/metabolism
- Receptors, G-Protein-Coupled
- Receptors, Ghrelin
- Stereoisomerism
- Structure-Activity Relationship
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Ueki Y, Nakamura H, Kanamoto Y, Miyazaki M, Yano M, Matsumoto K, Miyake S, Tominaga T, Tominaga M, Yamasaki S, Eguchi K. Comparison of lymphocyte depletion and clinical effectiveness on filtration leukocytapheresis in patients with rheumatoid arthritis. THERAPEUTIC APHERESIS : OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY FOR APHERESIS AND THE JAPANESE SOCIETY FOR APHERESIS 2001; 5:455-61. [PMID: 11800080 DOI: 10.1046/j.1526-0968.2001.00375.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We evaluated the relationship between the clinical benefit of filtration leukocytapheresis (LCP) and the number of removed leukocytes in patients with rheumatoid arthritis (RA). LCP was performed in 31 drug-resistant RA patients. LCP was carried out 3 times with 1 week separating each session. Assessment of RA before and after LCP showed a substantial and rapid improvement in tender joint counts, swollen joint counts, and patients' and physicians' assessments. Careful analysis indicated that 19 of 31 patients with RA showed > or = 20% improvement following LCP therapy. The number of leukocytes in the peripheral blood significantly decreased during each session of LCP. However, there was no significant decrease in the number of circulating blood cells during the study period. No adverse reactions or complications were noted. There was no significant difference in any indices of clinical activity and the removal rates of leukocytes between responders and nonresponders. The total numbers of removed lymphocytes in responders were significantly higher than those in nonresponders (responders 64.1 x 10(8) versus nonresponders 50.7 x10(8), p < 0.05). The relationship between clinical effectiveness and the number of removed granulocytes and monocytes was not statistically significant. Our results suggest that filtration LCP to remove leukocytes from the peripheral blood, especially lymphocytes, exerts an immunomodulatory effect in patients with RA.
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