This study, following Japanese Registry of NeuroEndovascular Treatment 1 and 2 (JR-NET 1 & 2), shows an annual trend of cases including adverse events and clinical outcomes at 30 days after NET. JR-NET3 was registered by 749 cumulative total number of physicians, certified by the Japanese Society of Neuroendovascular Therapy in 166 centers, between 2010 and 2014. Medical information about the patients was anonymized and retrospectively registered through a website. A total of 40,177 patients were recruited, 632 patients were excluded because data of preprocedural status were not available. So we analyzed 39,545 patients retrospectively. The proportion of octogenarians is increasing year-by-year and 14.7% in 2014 compared with 10.4% in 2010. Most frequent target disease is intracranial aneurysm. For the proportion of the treatment of intracranial aneurysm, 50.0% in 2010, but that has decreased to 44.8% in 2014. However, number of procedures were increased from 3150 in 2010 to 3419 in 2014. Although before the positive clinical evidence of mechanical thrombectomy for acute ischemic stroke (AIS) was established, the proportion of endovascular treatment for AIS increased 13.8% in 2014 compared with 6.3% in 2010. The number of patients requiring neuroendovascular treatment in Japan is increasing since 2010-2013, but that declined a little in 2014 caused by study operation suspended at the end of 2013. The outcomes of such therapy are clinically acceptable. Details of each type of treatment will be investigated in sub-analyses of the database.
Changes in mechanical property of Ni under irradiation by 3 GeV protons were estimated by multi-scale modeling. The code consisted of four parts. The first part was based on the Particle and Heavy-Ion Transport code System (PHITS) code for nuclear reactions, and modeled the interactions between high energy protons and nuclei in the target. The second part covered atomic collisions by particles without nuclear reactions. Because the energy of the particles was high, subcascade analysis was employed. The direct formation of clusters and the number of mobile defects were estimated using molecular dynamics (MD) and kinetic Monte-Carlo (kMC) methods in each subcascade. The third part considered damage structural evolutions estimated by reaction kinetic analysis. The fourth part involved the estimation of mechanical property change using three-dimensional discrete dislocation dynamics (DDD). Using the above four part code, stress-strain curves for high energy proton irradiated Ni were obtained. (C) 2010 Elsevier B.V. All rights reserved.
Objective The renin-angiotensin system (RAS) is implicated in the development of hypertensive glomerulosclerosis, However, no experimental evidence exists that clearly demonstrates activation of glomerular RAS in hypertensive nephropathy, We used stroke-prone spontaneously hypertensive rats (SHRSP) to examine whether RAS components are increased in glomeruli of SHRSP and whether this increase leads to an increase in mRNA levels for transforming growth factor-beta 1 (TGF-beta 1),Methods We examined the sequential changes of urinary albumin excretion (UAE), morphology, and glomerular mRNA expression for TGF-beta 1 and fibronectin (FN) in relation to glomerular mRNA expression for angiotensinogen (ATN), angiotensin converting enzyme (ACE), angiotensin II type 1a (AT1a), and type 1b (AT1b) receptors, and intervention with angiotensin II type 1. receptor antagonist candesartan and equihypotensive hydralazine,Results In SHRSP, UAE was normal at 9 weeks of age, but became higher, beginning at 12 weeks of age, than that in the age-matched Wistar-Kyoto (WKY) rats, while SH RSP showed no glomerulosclerosis until 14 weeks of age; it was marked at 24 weeks. Plasma renin activity and plasma angiotensin II level was equivalent in the 9- and 12-week-old SHRSP and the WKY rats; both parameters, however, were elevated in 24-week-old SHRSP as compared with age-matched control. RNase protection assays showed that glomerular levels of ATN, ACE, and AT1a and AT1b receptors mRNA were significantly increased in 9-, 12-, and 14-week-old, but not in 24-week-old SHRSP, compared with age-matched WKY rats. Northern blot analysis showed that glomerular levels of TGF-beta 1 and FN mRNA were higher in SHRSP than in WKY rats at all time points. Candesartan reduced UAE to control levels, whereas hydralazine reduced UAE but not to control levels. Candesartan administration for 12 weeks virtually prevented the progression of glomerulosclerosis. While candesartan reduced mRNA levels for RAS components, TGF-beta 1 and FN to control levels, hydralazine was not effective in this respect.Conclusion Results suggest that increases in glomerular RAS components that occur independently of circulating RAS alter glomerular permselectivity and increase the glomerular expression of TGF-PI and FN in young SHRSP. Findings in old SHRSP suggest that altered glomerular permselectivity and an increased glomerular expression of TGF-beta 1 and FN may be associated with the activation of systemic RAS, JHypertens 2000, 18:1247-1255 (C) Lippincott Williams & Wilkins.
Background: Although the renoprotective effect of calcium-channel blockers (CCBs) has been examined in several models of hypertensive nephropathy, it remains unclear. It also remains to be clarified whether CCBs prevent the progression to end-stage renal failure in chronic progressive glomerulonephritis (GN). A new rat model of progressive mesangioproliferative GN was used to study the effect of benidipine hydrochloride, a long-acting dihydropyridine CCB, on the clinical features and morphological lesions. Methods: This animal model of progressive GN was induced by a single intravenous injection of anti-Thy-1 monoclonal antibody (MoAb 1-22-3) two weeks after unilateral nephrectomy. After 10 weeks of treatment with benidipine (1, 3, and 5 mg/kg body weight, p.o.) or hydralazine (5 mg/kg body weight, p.o.), systolic blood pressure (SBP), urinary protein excretion, creatinine clearance, glomerulosclerosis index, tubulointerstitial lesion index, glomerular cross-sectional area, and glomerular expression of transforming growth factor-β (TGF-β) and α-smooth muscle actin (α-SMA) were measured. Results: Untreated rats developed hypertension, massive proteinuria, renal dysfunction, severe glomerular and tubulointerstitial injury, higher glomerular size, and marked glomerular staining for TGF-β and α-SMA, while uninephrectomized control rats did not. Each dose of benidipine and hydralazine equally reduced SBP to uninephrectomized control levels. Three and five mg/kg/day of benidipine increased creatinine clearance, ameliorated glomerular and tubulointerstitial injury, and reduced glomerular staining for TGF-β and α-SMA, but 1 mg/kg/day of benidipine and hydralazine failed. Only a dose of 5 mg/kg/day of benidipine reduced glomerular size, although it did not reduce the size to control levels. Conclusion: These results indicate that in a rat model of progressive mesangioproliferative GN, benidipine prevents the progression to end-stage renal failure in a dose-dependent manner. This renoprotective action is associated with the suppression of glomerular expression of TGF-β and α-SMA.
We previously reported a new animal model of progressive glomerulonephritis induced by a single intravenous injection of the anti-Thy-1 monoclonal antibody MoAb 1-22-3 into uninephrectomized rats (Clin Exp Immunol 102: 181-185, 1995). We examined the effects of angiotensin II (Ang II) receptor antagonist (candesartan) on the clinical features and morphological lesions of this new model. By 10 weeks after induction of nephritis, untreated rats had developed hypertension, massive proteinuria, renal dysfunction, and severe glomerular injury, while uninephrectomized control rats had not. There was a significant increase in levels of glomerular protein and cortical mRNA for transforming growth factor-beta (TGF-beta) and type I and type III collagens in untreated nephritic rats. Ten week treatments with candesartan and hydralazine significantly reduced blood pressure (BP) to an equal extent. Candesartan, but not hydralazine, prevented proteinuria, normalized renal function, and ameliorated glomerular injury. Candesartan also reduced levels of glomerular protein and cortical mRNA for TGF-beta and type I and type III collagens, while hydralazine did not. These findings suggest that candesartan prevents progression to end-stage renal failure by modulating the effects of Ang II at least in part on the production of TGF-beta and type I and type III collagens, and not merely on systemic BP.
A novel full-length cDNA showing homology with rho genes was isolated from a human placenta cDNA library. Sequencing of a total of 1086 nucleotides of this clone revealed an open reading frame of 630 nucleotides (210 amino acids). In view of its degree of homology to members of the Rho family of molecules (50-54% identical amino acids, 60-63% identical nucleotides within the coding region), the predicted product was designated RhoHP1(Rho-related protein HP1). Northern analysis indicated that a message about 1.2-kb long is expressed in human heart, placenta, liver, skeletal muscle, and pancreas and, with weaker intensity, in several other tissues.
A full-length cDNA homologous to RAB7, a member of the RAB-related GTP-binding protein subfamily, was isolated from a human placenta cDNA. library. This cDNA, designated RAB7L1, has an open reading frame of 609 nucleotides encoding 203 amino acids. Northern analysis showed that the mRNA is ubiquitously expressed in human tissues, although signal intensities were different among the various organs examined. This gene was located on chromosome band 1q32 by fluorescence in situ hybridization.
From a human fetal-brain cDNA library, we isolated and characterized a novel gene (KPNA3) encoding a protein highly homologous to certain nuclear transport proteins of Xenopus and human. The complete cDNA clone, designated karyopherin alpha 3, contained an open reading frame of 1,563 nucleotides encoding 521 amino acids. The predicted amino acid sequence showed 48 %, 45 % and 48 % identity with Xenopus importin, yeast SRP 1 and human RCH1, respectively. The similarities among these proteins suggest that karyopherin alpha 3 may be involved in the nuclear transport system. Eight repeats of the arm motif were well conserved among these proteins. The N-terminal region of the predicted karyopherin alpha 3 product was highly basic and the C-terminal region was strongly acidic. A 4.3-kb transcript was expressed in all adult human tissues examined by Northern blotting. The cDNA clone was assigned to chromosome band 13q14.3 by fluorescence in situ hybridization.
We have isolated and sequenced a novel 754-bp human fetal brain cDNA encoding a fatty acid-binding protein (FABP). The cDNA contains an open reading frame of 396 nucleotides (132 amino acids). Northern analysis revealed small amounts of a 1.2-kb transcript in adult human brain and a shorter transcript in skeletal muscle, but no message was detected in other tissues examined. On the other hand, it was abundantly expressed in fetal brain but not in fetal lung, liver or kidney tissues. The elevated level of transcript at immature stages and its subsequent decline In adult brain indicate that the encoded protein may be essential for development of the human brain.
We isolated a human cDNA clone encoding a novel protein homologous to cyclophilins, specific cellular targets of cyclosporin A, which are conserved in species ranging from human to prokaryotes. This cDNA, designated hCyPX, contained an open reading frame of 498 nucleotides encoding 166 amino acids. Computer analysis indicated that its predicted amino acid sequence had 41.6%, 40.4%, and 39.2% homology to those of human, bovine, and Drosophila cyclophilins, respectively. Northern blot analysis indicated ubiquitous expression in adult human tissues, but most abundant expression in heart. Fluorescence in situ hybridization to human metaphase chromosomes localized this gene (PPIL1, peptidylprolyl isomerase [cyclophilin]-like 1) to chromosome bands 2p23.3-->p23.1.
From a human fetal-brain cDNA library we isolated a novel gene encoding a peptide homologous to clathrin-adaptor small chains in rat, mouse: and yeast. The cDNA, designated CLAPS3 (clathrin-associated/assembly/adaptor protein, small 3, 22 kDa), contained an open reading frame of 579 nucleotides encoding 193 amino acids. Northern-blot analysis revealed expression of a 1.35-kb transcript in all human tissues examined. This gene was mapped to chromosome bands 12p13.2-->p13.1 by FISH.
From a human fetal-brain cDNA library we isolated a novel gene sharing significant homology with two yeast genes, UBC9 and hus5, which encode ubiquitin-conjugating enzyme 9 (UBC9). In yeast this protein is critical for normal mitosis, and seems to be closely involved in progression of G2 to M phase of the cell cycle. The human UBC9 (h-UBC9) cDNA, (gene symbol UBE2I), contained an open reading frame of 474 nucleotides encoding 158 amino acids. Its predicted peptide showed respectively 56% and 66% identity (75% and 82% similarity) with the products of UBC9 and hus5. Northern-blot analysis revealed expression of three transcripts, 6.4 kb, 3.3 kb, and 1.35 kb, in all human tissues examined. This gene, UBE2I, was mapped to chromosome band 16p13.3 by FISH.
We have isolated a human cDNA that is highly homologous to the murine gene (Gpm6) encoding a membrane glycoprotein, M6. The human gene (GPM6A) contains an open reading frame of 834 nucleotides encoding a peptide of 278 amino acids. Northern-blot analysis revealed specific expression in human brain. We assigned the GPM6A locus to chromosome bands 4q33-->q34 by radiation hybrid mapping.
From a human fetal-brain cDNA library we isolated a novel cDNA clone encoding a protein containing a CAP-GLY domain that is highly conserved among several cytoskeleton-associated proteins. The CAP-GLY domain is thought to be essential for their association with microtubules. The cDNA, designated CKAPI (for cytoskeleton-associated protein I, glycine motif) contained an open reading frame of 579 nucleotides encoding 193 amino acids. Northern-blot analysis revealed expression of three transcripts, 1.0, 3.4, and 4.6 kb in size, in all tissues examined. The 1.0-kb transcript was significantly higher in brain and heart than in other tissues. This gene was mapped by FISH to chromosome bands 19q13.11-->q13.12.
From a human fetal-brain cDNA library we isolated a putative human homologue of the murine Tcte1 gene. The cDNA, designated TCTEL1, contained an open reading frame of 339 nucleotides encoding 113 amino acids. The predicted peptides of TCTEL1 showed 94% and 55% identity (100% and 94% similarity) with those of murine Tcte1 and human RP3. Northern-blot analysis revealed a 0.9-kb transcript in all tissues examined. This gene was mapped by FISH to chromosome bands 6q25.2 --> q25.3, the syntenic region of the murine t-complex locus of chromosome 17.
From a human fetal-brain cDNA library we isolated two novel genes encoding peptides containing six EGF-like repeats. Both showed significant homologies with nel, a gene strongly expressed in neural tissues of chicken. The cDNAs, designated NELL1 (nel-like, type 1) and NELL2 (nel-like, type 2), contained open reading frames encoding 810 and 816 amino acids, respectively. NELL2 is strongly expressed in brain of adult and fetus but only weakly in fetal kidney. NELL1 and NELL2 were mapped by FISH to chromosomal bands 11p15.1-p15.2 and 12q13.11-q13.12, respectively.
From a human fetal-brain cDNA library we isolated a novel human cDNA, termed human adducin-like 70 (gene symbol ADDL), whose predicted amino acid sequence showed a high degree of homology to adducins. This cDNA clone (ADDL), which contained an open reading frame of 2,022 nucleotides encoding 674 amino acids, revealed 54%, 53%, and 59% identity in predicted amino acid sequence with alpha and beta components of human adducin and rat adducin 63, respectively. Human adducin-like 70 is likely to play an important role in the skeletal organization of the cell membrane. Northern blot analysis indicated ubiquitous expression of this gene in adult human tissues. We localized the gene to chromosome bands 10q24.2-->q24.3 by fluorescence in situ hybridization (FISH).