2) We used χ2 tests or, if appropriate, Fisher’s exact test to c

2). We used χ2 tests or, if appropriate, Fisher’s exact test to compare differences between groups with and without SS [27].

P-values < 0·01 were considered significant, with a confidence interval (CI) of 99%. Statistical analyses were performed using SigmaStat program version 1·02 (Systat Software Inc., Richmond, CA, USA). In this paper we propose that the detection of IgH gene rearrangements in MSG of SS patients is a predictor of malignant clonal expansion. To test our hypothesis, using PCR we analysed 102 DNA samples from whole MSG biopsies of SS patients and control subjects using FR2/LJH-VLJH, FR3/LJH and FR1c/JH1–6 primers (Table 2). The results obtained in the clonality assay by PCR using different primers are shown in Table 3, where the clonal IgH gene rearrangement selleck chemicals llc was found in 28 of 48 (58%) patients with pSS using FR3/LJH primers; one band of amplification was observed selleck products in the gel. The remaining 20 cases presented a polyclonal rearrangement and were observed as a smear in the gel (Fig. 1a). When FR2/LJH-VLJH primers were used, the clonal rearrangement was found in 79% of

the pSS patients (Fig. 1b). Similar results were obtained in the sSS cases (Table 3 and Fig. 1c). Therefore, this analysis shows that patients with SS contained clonal B cell infiltrates in their MSG. When a polyclonal background was observed as a smear in the gel, the co-existence of polyclonal and monoclonal B cell populations was hypothesized to explain the results (Fig. 1). The FR2/LJH-VLJH primers amplified successfully a higher proportion of cases with SS than FR3/LJH primers, as shown in Table 3. To assess the false negative results, all the cases were analysed with FR1c/JH1–6 primers (Table 3 and Fig. 1d). We should point out that after use of the three sets of primers, the clonality detection rate reached 86·7% in SS patients (pSS and

sSS), as indicated in Table 3. Nineteen per cent of the control subjects exhibited oligo-monoclonal bands with similar PCR amplification and histopathological analysis of the gland exhibited different degrees of CS. A strong polyclonal cell background was observed in the eight PCR-positive Quinapyramine cases. The level of amplification was notably lower than in all the cases with SS (Fig. 1). The number of positive cases for the presence of clonal expansion in MSG from SS patients was very high compared with the control cases without SS (86·7 versus 19%, P < 0·01; χ2 test). Translocation t(14;18) was observed in 8·3% of the cases with pSS (Table 3). In addition, we demonstrated that our IgH PCR method was highly sensitive to detected clonal cells. This PCR method was able to detect 102 clonal cells in 105 PBMC, using the three consensus regions (Fig. 2).

coli (DH5α) and S aureus (ATCC 25904) Cells were divided into t

coli (DH5α) and S. aureus (ATCC 25904). Cells were divided into two groups, one receiving the agonist and the other receiving only the solvent (control), and were placed back in the incubator for the appropriate times. For inhibitor studies, cells were pretreated for 30 min with 200 nM CsA, 10 μM of the acetoxymethyl form of the intracellular calcium chelator bis(aminophenoxy)ethane-N,N′-tetraacetic acid (BAPTA-AM; Calbiochem, San Diego, CA), or 20 μM diphenylene iodonium (DPI) for 30 min before agonist treatment. After the appropriate incubation time, cultures PLX4032 purchase were washed with phosphate-buffered saline (PBS), followed by direct addition

and lysis with 2 × Laemmli sodium dodecyl sulfate (SDS) sample buffer (Laemmli, 1970) and trituration. Each cell lysate was mixed with an equal volume of 2 × Laemmli SDS sample buffer and boiled for 4 min. Equal protein amounts of the boiled cell lysates were then electrophoresed on an (usually 12.5%) SDS-polyacrylamide gel, electroblotted to nitrocellulose, and incubated with primary antibody, followed by peroxidase-conjugated secondary antibody and signal development with the Western light chemiluminescent substrate (Perkin Elmer, Boston, MA). All signals were captured on film and quantified using the imagej program. The RCAN1 antibody used was a mouse monoclonal antibody directed against the C-terminal region of human RCAN-1 (generously progestogen antagonist provided by Dr Sandra Ryeom and Dr Frank McKeon, Harvard

Medical School). Mouse tubulin antibody was obtained from Sigma. RCAN1 (calcipressin) KO mice were obtained from Drs Sandra Ryeom and Frank McKeon, Harvard Medical School. These animals have a portion of the RCAN1 C-terminus coding region removed from their ES129 background, and do not express any RCAN1 isoforms (Kingsbury & Cunningham, 2000; Ryeom et al., 2003). Age- and gender-matched ES129 WT mice were used as controls. Before the intranasal inoculation, mice were anesthetized with an intraperitoneal injection of ketamine and xylazine. Fransicella tularensis live vaccine strain (LVS; ATCC 29684), originally aliquoted from mid-log-phase growth cultures and stored in liquid nitrogen, was thawed Thymidylate synthase for

infection studies. The viability of these bacterial aliquots and the inocula dosage was determined with serial dilution in PBS and plating, followed by the counting of CFU. For the described in vivo studies, RCAN1 KO and WT mice were inoculated intranasally with 10 000 CFU of F. tularensis LVS in a volume of 20 μL of PBS (10 μL per nare), while the controls were given an equal volume of PBS (Malik et al., 2006). Bacterial growth numbers were quantified for the lung and spleen 3 and 7 days after F. tularensis infection essentially as described (Malik et al., 2006). In summary, mice were euthanized with CO2 and decapitation, and the lungs were inflated with sterile PBS and removed aseptically in PBS containing protease inhibitor. The spleens were also removed at this time.

Thus, both Rho-GDI β protein and cofilin-1 are involved in the re

Thus, both Rho-GDI β protein and cofilin-1 are involved in the regulation of stress fiber formation, which plays critical roles in various cellular functions, such as adhesion, activation, and mobility. It was also reported that cofilin plays an essential role in the control of phagocyte function through regulation of actin filament dynamics (30). We here demonstrated the existence of auto Abs to Rho-GDI β protein and cofilin-1, in addition to autoAbs to actin in BD. This indicates that the cytoskeleton system

would be one of the major targets of autoimmunity in BD. The roles of autoAbs to the cytoskeleton system should be investigated in more detail in the future. A hypothesis based on the production of these autoAbs would support neutrophilic

activation in mucocutaneous lesions, Omipalisib clinical trial including the aphtha (31). In the WB using cofilin-MBP, the anti-cofilin-1 autoAbs were detected in 13.3% of patients with BD; however, more strikingly, the prevalence was most dominant in PM/DM (24.2%). Cofilin-1 has approximately 89% amino acid homology with cofilin-2, a muscle type of cofilin. This high homology suggests that cofilin-2 would be a real autoAg in patients with myositis. The anti-cofilin-2 antibodies may easily cross-react with cofilin-1. It is reported that cofilins inhibit see more interactions between actin and myosin and between actin and tropomyosin (32), and mutation of cofilin-2 genes resulted in nemaline myopathy (33). Thus, cofilin-2 is deeply involved in the function of myocytes and the probable generation of anti-cofilin-2 autoAbs may damage myocytes in patients with PM/DM. In BD patients, antibodies to cofilin-2 may react with cofilin-1 through the amino acid homology. However, in contrast to PM/DM, autoAbs to molecules constituting myocytes, such as actin and myosin, have, to our knowledge, not been reported. Further, BD patients do not display muscle

disorders, represented by elevated muscle enzymes and weakness in manual muscle testing generally. Thereby, the muscle system would not be a target of autoimmunity in BD. Accordingly, cofilin-1 itself, rather than the muscle-related cofilin-2, would be a primary autoAg Y-27632 2HCl in BD. Further studies will be needed to elucidate these points. In the present study, on the clinical symptoms and laboratory parameters, no significant difference was found between anti-cofilin-1-positive and -negative patients in each of the disease categories tested. This is possibly due to the relatively small numbers of anti-cofilin-1 autoAb-positive patients (i.e. only 2–8 out of 30 or more patients were positive for the autoAbs). Alternatively, it is also possible that the autoAbs to cofilin-1 could be a secondary phenomenon produced by chronic inflammation. Investigation of more serum samples in the future will clarify this point.

5, 3, 24 and 72 h after exposure The cerebellum and hippocampus

5, 3, 24 and 72 h after exposure. The cerebellum and hippocampus were subjected to Western analysis for VEGF, iNOS, eNOS, nNOS and AQP4 expression; ELISA analysis for cytokine and chemokine levels; and immunohistochemistry for GFAP/AQP4, RECA-1/RITC and TUNEL. Aminoguanidine (AG) was administered to determine the effects of iNOS after smoke inhalation. Both the cerebellum and hippocampus showed a significant Doxorubicin in vitro increase in VEGF, iNOS,

eNOS, nNOS and AQP4 expression with corresponding increases in inflammatory cytokines and chemokines and increased AQP4 expression and RITC permeability after smoke exposure. AG was able to decrease the expression of iNOS, followed by VEGF, eNOS, nNOS, RITC and AQP4 after Selleck GPCR Compound Library smoke exposure. There was also a significant increase in TUNEL+ cells in the cerebellum and hippocampus which were not significantly reduced by AG. Beam walk test revealed immediate deficits after smoke inhalation which was attenuated with AG. The findings suggest that iNOS plays a major role in the central nervous system inflammatory pathophysiology after smoke inhalation exposure with concomitant increase in proinflammatory molecules, vascular permeability and oedema, for which the

cerebellum appears to be more vulnerable to smoke exposure than the hippocampus. “
“J.-F. Ma, Y. Nutlin-3 research buy Huang, S.-D. Chen and G. Halliday (2010) Neuropathology and Applied Neurobiology36, 312–319 Immunohistochemical evidence for macroautophagy in neurones and endothelial cells in Alzheimer’s disease Aim: To determine the pathological structures associated with macroautophagy in Alzheimer’s disease (AD) and any relationship to disease progression. Methods: Immunohistochemistry using antibodies to beclin-1, Atg5 and Atg12, early macroautophagy markers and LC3, the mammalian homologue of the later macroautophagy marker Atg8, were localized in formalin-fixed, paraffin-embedded medial temporal lobe sections of AD cases at variable neuritic disease stages.

Double immunofluorescence labelling was used to co-localize these macroautophagy markers with Aβ and phospho-tau (AT8) and correlations performed using Spearman rank tests. Results: Atg12 immunoreactivity in AD was either dispersed in the soma and dendrites or concentrated in tau-immunoreactive dystrophic neurites and some neurofibrillary tangles. Fewer Atg12-immunopositive neurones were observed with longer disease durations. Atg12-immunoreactive endothelial cells were found spatially associated with Aβ-positive plaques, with more Atg12-immunoreactive capillary endothelial cells with higher neuritic disease stage. These findings were confirmed by the other autophagy markers beclin-1, Atg5 and LC3.

Measles virus replication in human TEC in vitro results in termin

Measles virus replication in human TEC in vitro results in terminal differentiation and apoptosis [47]. Surprisingly, with regard to thymic output, an increase in TREC+ CD4+ T cells has been reported in measles virus-infected children despite severe lymphopenia [48]. Infections with CMV (belonging to the Herpesviridae family) are also immunosuppressive, resulting in poor cellular

responses from cultured blood leucocytes, low CD4/CD8 ratios and potential secondary infections [49]. At the thymic level, CMV infection in the SCID-Hu mouse results in high and PF-562271 nmr persistent viral replication in the thymus. The majority of virus-infected cells were localized in the thymic medulla and immunofluorescence analysis this website identified TEC rather than any haematopoietic cell population as the principal hosts for viral replication [50]. Infection of BALB/c mice with murine (M)CMV decreased the numbers of cells recovered from the thymus by 80–90% after 4–7 days, although fewer than 0·001% were infected productively with the virus. A loss of cortical thymocytes was evident in histological sections and correlated with depletion of CD4+CD8+ cells [51]. Suppression of cell-mediated immunity is also a common feature of rabies virus

infection [52,53]. This phenomenon relies essentially upon thymocyte apoptosis and thymus atrophy (despite no evidence of virus infection), as observed in numerous studies carried out in

mice [52,54–56]. Altogether, these data show that viruses belonging to various families can infect the thymus in vivo and in vitro. Clearly, viruses can impair thymus functions significantly. Like any autoimmune disease, T1D results from self-tolerance breakdown. Self-tolerance establishment is initiated at the central level within the thymus. Thus, it cannot be excluded that disturbance in thymic architecture and/or function may play a role in the development of autoimmune processes. At the peripheral level, self-tolerance is based on regulatory T cells (Treg), a specialized subset of T cells whose functions include the suppression of autoreactive T cells. In the case of T1D, pancreatic islet β cells are targeted selectively by the autoimmune destruction process, meaning that Selleck Forskolin there is a defect in the recognition of islet β cell antigens. Anomalies in Treg cells functions and numbers have been associated with autoimmunity towards islet β cells and are thought to play a role in the progression of T1D [57]. At the thymic level, this defect can arise from several aberrations encountered during T cell education through positive and negative selection. During positive selection, the newly rearranged TCRs expressed on developing thymocytes interact with MHC molecules on cortical TEC; thus, any anomaly in MHC and/or TEC may lead to aberrant positive selection.

Treatment with hCDR1 down-regulated the expression of the latter

Treatment with hCDR1 down-regulated the expression of the latter molecule.51 Our present results, as well as previous data, indicate that treatment with hCDR1 affects a number of cell types and pathways. Figure 8 summarizes schematically our updated knowledge on the effects of treatment of SLE-affected mice with hCDR1 on T and B cells. As illustrated in the Fig. 8, the expression of CD74/CD44 complex in B cells of the treated mice is down-regulated along with down-regulation of the ligand of this complex, MIF, which results in suppressed expression of survival molecules, (e.g. Bcl-xL). Previous studies suggested

that suppression of NF-κB signalling mediated the latter,17,19 in agreement with our findings following down-regulation of https://www.selleckchem.com/products/3-deazaneplanocin-a-dznep.html BAFF in the hCDR1-treated mice.16 In addition to the inhibitory effect of hCDR1 on the state of activation of B cells,8 the resultant enhancement of B-cell apoptosis may lead to the reduced production of dsDNA specific autoantibodies. In the T-cell compartment, however, hCDR1 induced CD4 and CD8 regulatory T cells,6,7 up-regulated the expression of Bcl-xL, and led to decreased rates of T-cell apoptosis and inhibition of T-cell activation.8,9 As a result, the production of pathogenic cytokines was significantly down-regulated. The reduced production of autoantibodies and pathogenic cytokines

is associated Navitoclax mw with clinical amelioration of SLE manifestations. In conclusion, the present work has shown the involvement of the CD74/MIF pathway in the development of pathogenic B cells and in SLE-afflicted target organs. Moreover, treatment with the tolerogenic peptide, hCDR1, ameliorates disease manifestations, at least in part, by affecting this pathway. The authors have no financial conflicts of interest. “
“Antigen-presenting cell-associated four-domain MHC class II (MHC-II) molecules play a central role in activating

autoreactive CD4+ T cells involved in multiple sclerosis (MS) and type 1 diabetes (T1D). In contrast, two-domain MHC-II structures with the same Bay 11-7085 covalently attached self-peptide (recombinant T-cell receptor ligands (RTLs)) can regulate pathogenic CD4+ T cells and reverse clinical signs of experimental autoimmune diseases. RTL1000, which is composed of the β1α1 domains of human leukocyte antigen (HLA)-DR2 linked to the encephalitogenic human myelin oligodendrocyte glycoprotein (MOG)-35-55 peptide, was recently shown to be safe and well tolerated in a phase I clinical trial in MS. To evaluate the opposing biological effects of four- versus two-domain MHC-II structures, we screened phage Fab antibodies (Abs) for the neutralizing activity of RTL1000. Five different TCR-like Abs were identified that could distinguish between the two- versus four-domain MHC–peptide complexes while the cognate TCR was unable to make such a distinction.

2g) To investigate

2g). To investigate see more the importance of IL-10 for CD8+CD28− Treg function, neutralizing antibodies were added to the HC functional assays. In the presence of a neutralizing IL-10 antibody, inhibition of the suppressor function was observed in some HC, but this was not consistent. In contrast, in the presence of neutralizing anti-TGF-β antibody, CD8+CD28− T cell suppressor function was reduced significantly

(Fig. 2h). Because the CD8+CD28− Treg effector mechanism involved soluble mediators, the cytokine production of the cells was examined. IL-2, IL-17 and TNF-α were detected at low levels but showed no detectable difference in concentration between the cultures (data not shown). In contrast, high concentrations of IFN-γ (Fig. 3a) were produced by stimulated CD8+CD28− Treg from all three subject groups, although there appeared to be no additive effect in the 1:1 co-cultures. Significantly different concentrations of IL-10 were produced by RA(MTX) CD8+CD28− Treg (1013 ± 231 pg/ml) compared with HC (271 ± 69 pg/ml, P = 0·0072) or RA(TNFi) [RA(TNFi) (49 ± 27 pg/ml, P = 0·041)] (Fig. 3b). As the concentration of cytokine detected in in-vitro cultures is dependent upon the balance between production and use of the cytokine, high concentrations of IL-10, in the dysfunctional RA(MTX) CD8+CD28− Treg cultures following stimulation may be due to abnormal uptake and, thus, lead to deficient

downstream signalling by IL-10. On investigation over 48 h, IL-10R expression on RA(MTX) CD3+ T cells was significantly lower than HC T cells (Fig. 3c) and reduced on CD8+CD28− Treg. In-vitro addition of TNFi to RA(MTX) GS-1101 order cultures showed a significant increase in IL-10R expression on responder CD3+ T cells from RA(MTX) (Fig. 3d). However, the RA(TNFi) IL-10R expression was only marginally improved and remained lower that that of the HC (Fig. 3c). To address the question of whether the

deficient regulatory function of RA(MTX) CD8+CD28− Treg was due to an intrinsic defect or reduced GBA3 sensitivity of the responder cells, cross-over co-culture experiments were performed using highly purified T cells from HC and RA(MTX). HC CD8+CD28− Treg suppressed proliferative responses significantly by autologous responder T cell (Tresp) to CD3/CD28 stimulation (Fig. 4a). However, in co-culture with each of two different allogeneic Tresp from RA(MTX) or HC, HC CD8+CD28− Treg failed to suppress proliferation by RA Tresp (RA1 and RA2) while significantly suppressing allogeneic Tresp from two HC (HC1 and HC2) (Fig. 4a). The reverse experiments showed that RA(MTX) CD8+CD28− Treg failed to suppress proliferation by autologous Tresp, two allogeneic RA Tresp (RA3 and RA4) and two allogeneic HC Tresp (HC3 and HC4) (Fig. 4b). This study has revealed for the first time that despite an in-vivo abundance of CD8+CD28− Treg in RA patients they are functionally deficient.

In three groups a nerve defect of 20 mm was bridged with a vein g

In three groups a nerve defect of 20 mm was bridged with a vein graft. Our first experimental group comprized

an empty venous graft, in group II the venous nerve graft was filled with saline where as in group III the venous nerve graft was filled with BMSC. The animals were tested for functional recovery up to 3 months post repair. Our results show that the BMSC filled venous graft resulted in significantly better regeneration of the nerve defect compared to controls, as confirmed by the functional recovery measured by somatosensory evoked potentials, toe spread, pin prick, and gastrocnemius muscle index. Conclusively, the results confirm that the vein graft supported with BMSC is associated with better functional PLX3397 clinical trial nerve regeneration. © 2010 Wiley-Liss, Inc. Microsurgery, 2010. “
“The aim of this study was to

evaluate the effect of Platelet Rich Plasma (PRP) and Platelet AZD2281 cost Rich Fibrin (PRF) on peripheral nerve repair. Thirty-two Wistar rats were randomly divided into four equal treatments groups: autologous nerve grafts (ANG), silicon tube plus saline solution (SS), silicon tube plus PRP, and silicon tube plus PRF. In ANG group, 10 mm segment from sciatic nerve was excised and reimplanted between the nerve stumps. In the SS, PRP, and PRF groups, 5 mm segment from sciatic nerve was excised and bridged with a 12 mm silicone conduit to create a 10 mm nerve gap. The conduit was filled in accordance with the different treatments. Walking track analysis was performed periodically and on the 90th post-operative day histomorphometric analysis was performed. The ANG, PRF, and PRP groups presented a significant functional improvement

in relation to the SS group (P = 0.001) on 90 days after surgery. Histomorphometric analysis demonstrated that the CYTH4 ANG group achieved a larger nerve fiber diameter in proximal stump while comparing with the SS group (P =0.037) and showed larger fiber diameter in median stump in comparison to the PRP group (P = 0.002) and PRF group (P = 0.001). Axonal diameter and myelin sheath thickness showed no statistical significant difference between the groups in the three stumps (P ≥ 0.05). This study suggests that PRP and PRF have positive effects on the functional nerve recovery; however, these groups don’t achieve a significant improvement on the histomorphometric analysis. © 2013 Wiley Periodicals, Inc. Microsurgery 33:383–390, 2013. “
“Among possible causes of a condition of immunodeficiency, we have to consider the presence of a serious chylous dysplasia, due to the great loss of proteins through the intestinal lumen. A 20-year-old male, suffered from diarrhoea (2–4 times a day), weight loss (8 kilos in 5 years), and malnutrition (hypogammaglobulinemia, hypoalbuminemia, leukocytopenia with lymphocytopenia).

However, little is known about the interactions between CRAMP and

However, little is known about the interactions between CRAMP and mycoplasmas. In the present study, the antimicrobial activity of CRAMP against M. pneumoniae and the expression of CRAMP in bronchoalveolar lavage fluid (BALF)

of M. pneumoniae-infected mice was examined. selleck screening library CRAMP at 10–20 μg/mL reduced the growth of two strains of M. pneumoniae by 100 to 1000-fold. The amount of CRAMP in the BALF of M. pneumoniae-infected mice was 20∼25 ng/mL by ELISA. The presence of mature CRAMP in BALF was observed by Western blotting. Neutrophils in BALF showed a fair amount of CRAMP in their cytoplasm by immunofluorescence. Furthermore, the addition of M. pneumoniae resulted in the release of a large amount of CRAMP from neutrophils buy FK506 induced

by thioglycolate. These results suggest that CRAMP from neutrophils may play an important role in protection against M. pneumoniae infection. In innate immunity, neutrophils are well known to exhibit protective roles in infection by a variety of invasive microbes (1). Neutrophils have several strategies against attacking microbes: phagocytosis, killing by a combination of ROS and cytotoxic components of granules, and generation of NETs (1, 2). These strategies function in concert to eliminate the microbes. Cytotoxic components of granules include cathelicidin, defensin, bactericidal/permeability increasing protein and lactoferrin, each of which is known to possess antimicrobial activity (3, 4). In addition, some of the contents of the granules are secreted from neutrophils into the extracellular milieu, where they are assumed to exert antimicrobial activity. Cathelicidins such as cathelin-related antimicrobial peptide (CRAMP) and LL-37 are a family of antimicrobial peptide precursors expressed in circulating neutrophils, myeloid bone marrow next cells, epithelial cells of the skin and gastrointestinal tract, and the epididymis (5, 6). They are characterized by a conserved N-terminal cathelin domain and a variable C-terminal antimicrobial

domain (7). The mouse cathelicidin proform is processed to the mature bioactive peptide CRAMP, whereas the human counterpart is called LL-37 (5). The cathelicidins are thought to exert broad antimicrobial activity against Gram-positive and -negative bacteria, yeast, and some enveloped viruses (3, 8). Mycoplasma pneumoniae is a causative agent of acute respiratory illness in humans, including tracheobronchitis and pneumonia (9, 10). Most patients have a clinically mild course, severe symptoms being rare. The mechanism by which the host protects against M. pneumoniae infection is not fully understood, but neutrophils are known to accumulate in BALF after mice have been intranasally infected with M. pneumoniae (11, 12). Mouse neutrophils contain some antimicrobial peptides, including cathelicidins, but lack defensins.

Conclusion: C E R A was useful for renal anemia treatment Hb va

Conclusion: C.E.R.A. was useful for renal anemia treatment. Hb variability of C.E.R.A. and its effect for prognosis was similar with that of epoetin beta. CHOI SU JIN, KIM YOUNG SOO, YOON SUN AE, KIM YOUNG OK Uijeongbu St. Mary’s Hospital Introduction: We have reported that arterial micro-calcification (AMC) of vascular access has a negative impact on access patency and cardiovascular

mortality in hemodialysis (HD) patients. Reasons behind increased cardiovascular mortality in AMC are not fully understood, but it is believed that aortic stiffness is a major contributing factor. Whereas, coronary artery calcification (CAC) is quite common in HD patients and it is known as predictor of future cardiovascular events and all cause

mortality in HD patients. The aim of this study was to explore the relationship between AMC and CAC in HD patients. Methods: We JQ1 have reported BGB324 solubility dmso that arterial micro-calcification (AMC) of vascular access has a negative impact on access patency and cardiovascular mortality in hemodialysis (HD) patients. Reasons behind increased cardiovascular mortality in AMC are not fully understood, but it is believed that aortic stiffness is a major contributing factor. Whereas, coronary artery calcification (CAC) is quite common in HD patients and it is known as predictor of future cardiovascular events and all cause mortality in HD patients. The aim of this study was to explore the relationship between AMC and CAC in HD patients. Results: Mean age was 65.8 ± 12.5 years and the male gender was 37 (57.8%). The incidence of AMC was 62.5% (n = 40). The mean CACS was 439.3 ± 901.1 (0–5674.1), and the median value was 128.4. Patients with the positive AMC group showed a significantly older age (68.6 ± 10.2 vs 61.2 ± 14.7, p = 0.036) and a higher prevalence of diabetes (85.0% vs 45.8%, p = 0.001). Positive AMC group showed high incidence of high CACS compared to negative AMC group (77.5% vs 20.8%, p = 0.000). By binary logistic regression, high CACS was independently associated with positive AMC (OR 8.894, 95% CI 1.174–46.154, p = 0.008). Conclusion: The

present study suggests that AMC is closely associated with CACS in HD patients. IO HIROAKI, Gemcitabine concentration NAKATA JUNICHIRO, AOKI TATSUYA, KANDA REO, YANAGAWA HIROYUKI, WAKABAYASHI KEIICHI, TOMINO YASUHIKO Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine Introduction: In hemodialysis (HD) patients, the relationship between left ventricular hypertrophy (LVH) and weekly blood pressure (BP) is still unclear. The objectives of the present study are 1) to evaluate when or how BP should be monitored and 2) to evaluate whether echocardiographic parameters are independently associated with increased CV events in HD patients. Methods: This longitudinal study consecutively enrolled 130 HD patients.