Exclusion criteria were pregnancy, patients undergoing dialysis o

Exclusion criteria were pregnancy, patients undergoing dialysis or who were severely ill, such as those in the intensive-care unit or who were haemodynamically unstable, patients with infections and patients with drug-induced leucopenia or anaemia. Patient characteristics, including immunosuppressive medications and prednisone dose, are summarized in Table 1. Healthy donors (n = 31) matched by age and sex were included as controls. In both groups, 90% were women and the average ages were 36·1 ± 12·2 and 32·1 ± 9·1 years in the patients with SLE and healthy controls, respectively. In addition, 16 patients with rheumatoid arthritis and five kidney-transplanted patients, undergoing

similar immunosuppressive treatment to the patients with SLE, were included as controls (average ages 59·6 ± 10·41 and 45·4 ± 10·6 years, respectively). Further details regarding patient characteristics and specific medications Maraviroc price including prednisone dose are shown

in Tables 2 and 3 for patients with rheumatoid arthritis and transplanted patients, respectively. For additional experiments, including T-cell activation after SEA stimulation, an additional 31 patients with SLE with similar characteristics and treatments were evaluated. Each patient signed an informed consent form before enrolling in the study, in accordance with the regulations of the Ethics Committee from the School of Medicine of the Pontificia Universidad Católica, PD184352 (CI-1040) and the study was performed in accordance with the Declaration of Helsinki as emended in Edinburgh (2000). The SLE activity was assessed using Doxorubicin the Systemic Lupus Erythematosus Activity Index (SLEDAI) 2K. Peripheral blood mononuclear cells (PBMCs) were separated from whole blood using the standard Ficoll centrifugation method.

Monocytes were obtained using the adherence method.34 Briefly, PBMCs (3 × 106 cells/ml) were incubated in serum-free X-VIVO-15 medium (Bio-Whittaker, Walkersville, MD) supplemented with 1% autologous serum and 50 μg/ml gentamycin (Calbiochem, San Diego, CA) (DC-medium) for 2 hr at 37°. Adherent cells were washed four times with pre-warmed serum-free X-VIVO-15 medium (Bio-Whittaker) and were then cultured in DC-medium at 37°. Monocytes were differentiated to DCs over 5 days by the addition of 1000 U/ml IL-4 and 1000 U/ml GM-CSF on days 0, 2 and 4. Maturation of the DCs was triggered by the addition of lipopolysaccharide (LPS; 5 μg/ml) for an additional 48 hr. The DC immune-phenotypes were confirmed by flow cytometry using specific monoclonal antibodies against surface markers. Cells were washed with PBS, re-suspended at 2 × 106 cells/ml (50 μl/tube) and incubated with FITC-conjugated, PE-conjugated and APC-conjugated antibodies for 30 min at 4°. The isotype-matched antibodies conjugated with FITC, PE and APC were used as controls.

Other significant relationships were found

between (a) nT

Other significant relationships were found

between (a) nTIPs/mismatch–mismatch, and, (b) MOV/affect loss. As mentioned in the discussion, the findings are suggestive for clinical applications (e.g., music therapy) and warrant further research. “
“Children can represent events in our everyday life in both non-linguistic and linguistic formats. We aimed to investigate whether non-linguistic representations are changed once children acquire their linguistic counterparts. In the present study, we explored whether and how language changes the perception of simple means-end actions using an eye-tracking paradigm. Children between 12 and 24 months of age heard a sentence containing a verb and subsequently watched an action video. Results show an interfering influence of language on action perception www.selleckchem.com/products/jq1.html at 12 months and a facilitating influence at

24 months. However, this was only the case for verbs that are already in the toddlers’ this website productive vocabulary but not for those that are acquired later. Taken together, the results suggest that a communication between non-linguistic and linguistic representations starts early and develops in the second year of life. The successful facilitatory influence depends on the productive repertoire of the language in question. “
“Relations between infant–mother attachment security at 15 months and infants’ (N = 206) joint attention behaviors (a) with an experimenter at 8 and 15 months, and (b) with their mothers at 15 months were investigated. No concurrent or longitudinal relations were observed between attachment

security Gemcitabine mw and infants’ tendency to respond to an experimenter’s bids for joint attention. Higher levels of initiating joint attention with an experimenter at 15 months were associated with insecure-avoidant attachment. Insecure-avoidant attachment was also associated with lower scores for initiating high-level joint attention behaviors (pointing, showing, and giving) with the mother at age 15 months. The fact that security-related differences in initiating joint attention with an experimenter were observed only once the attachment relationship was consolidated suggests that (a) attachment security may influence infants’ active engagement with new social partners, and (b) insecure-avoidant infants may compensate for reduced social contact with the caregiver by initiating more interaction with other social partners. “
“In a prospective longitudinal study of a representative community sample (N = 264), mothers’ references to infants’ mental states were coded during a topic-sharing task in the home at 6 months. Joint attention behaviour was assessed in the laboratory at 12 months. Individual joint attention skills (gaze following, gaze alternating, and declarative pointing) were significantly inter-correlated, with a single factor accounting for 68% of the variance.

39 α-lipoic

39 α-lipoic Ulixertinib solubility dmso acid (α-LA) is also found naturally in mitochondria and acts as a critical coenzyme for the mitochondria enzymes pyruvate dehydrogenase and α—ketoglutarate dehydrogenase.40 Its reduced form, dihydrolipoic acid (DHLA), and other metabolites have strong antioxidant effects as ROS scavengers and act as chelators of transition metals.41 In a PBOO study, CoQ10 plus α-LA treatment significantly

increased bladder contractility in vitro, decreased bladder wall protein carbonylation and nitration, increased mitochondrial function, prevented intramural nerve degeneration and diminished detrusor smooth muscle hypertrophy in rabbit bladder.26 Specifically, bladder voiding contraction can be separated into two phases: an initial peak phase and a second tonic phase.42 The initial peak response Navitoclax was supported energetically by extant cellular ATP stores, whereas the tonic phase required active mitochondrial oxidation of substrates to generate energy. Ability of the bladder to sustain contraction is directly related to the availability of energy produced by mitochondrial electron transport and oxidative phosphorylation.42 Decompensation of bladder from extended obstruction may

be mediated by breakdown of mitochondrial function. Both CoQ10 and α-LA are essential mitochondrial components in respiratory chain and pyruvate-dehydrogenase complex. Combination therapy may target several common pathways in mitochondrial dysfunctions. Following 4 weeks PBOO, both choline acetyl-transferase activity (an indicator of cholinergic function) and neurofilament amounts decreased significantly and diminished further after 7 weeks of obstruction. PBOO also significantly increased both protein nitration and carbonylation following obstruction, especially after 7 weeks obstruction. CoQ10 and α-LA are both strong antioxidant reagents in nature. Treatment with CoQ10 plus α-LA significantly attenuated protein carbonylation PR-171 mouse and nitration, indicating that these medications

may work through an antioxidative effect. The antioxidative function of CoQ10 is likely to occur by providing hydrogen equivalents to reduce peroxyl and/or generation of alkoxylradicals.39α-LA has also been proven to reduce lipid peroxidation by enhancing the activity of glutathione peroxidase and SOD, which improves the efficiency of the endogenous antioxidant systems.43 A combination of these two strong antioxidants thus prevents free radical induced tissue damages subjected to PBOO. Ischemia/reperfusion injury is also involved in bladder overdistention injury. It has been known for a long time that bladder overdistention reduces blood perfusion of the bladder.44 Blood flow is resumed following emptying and decompressing the urinary bladder. Reperfusion of the overdistended and ischemic urinary bladder might induce reperfusion injury. In a rabbit overdistention model, Lin et al.

There is some, perhaps rather controversial, evidence that CD8+ T

There is some, perhaps rather controversial, evidence that CD8+ T cells, when first activated to proliferate, require an asymmetric cell division to provide one daughter that will generate MK-8669 manufacturer the effector cell lineage while the other daughter gives rise to memory cells.[71] If that is true, it is tempting to speculate that TORC2, which seems to have an evolutionary conserved function

in controlling cell shape and polarity,[16, 72] may regulate asymmetric cell divisions and the subsequent lineage decisions of both CD4+ and CD8+ T cells in ways we do not yet understand. The mTOR pathway can therefore be thought of as the fulcrum that balances the different requirements of T cells in tolerance compared with inflammation (Fig. 4). During inflammation, effector T-cell differentiation dominates, which is associated with extracellular ATP and a ready availability of amino acids that, in turn, drive mTOR activation, cell proliferation and glucose metabolism. In contrast, tolerance is maintained by an excess of regulatory T cells, associated with a TGF-β-induced expression of CD39 and CD73, and conversion of extracellular ATP to adenosine. Tolerance within tissues is also associated

with the up-regulation of many different enzymes that consume many, if not all, of the essential amino acids. Under these conditions, mTOR is inhibited, FOXP3 induction is promoted in naive T cells (i.e. infectious AZD9291 concentration tolerance), and

both iTreg and nTreg cells may have a competitive advantage to accumulate relative to effector GNA12 T cells. However, under conditions of mTOR inhibition, Treg cells may not be optimally functional, and it may only be in response to inflammation and mTOR activating conditions that the Treg cells acquire the full suppressive potential. The author has no conflict of interests. “
“Chronic periodontitis is the most common chronic inflammatory disease and has been associated with an increased risk for serious medical conditions including cardiovascular disease (CVD). Endotoxin (lipopolysaccharide), derived from periodontopathogens, can induce the local accumulation of mononuclear cells in the inflammatory lesion, increasing proinflammatory cytokines and matrix metalloproteinases (MMPs), resulting in the destruction of periodontal connective tissues including bone. In this study, we show that doxycycline, originally developed as a broad-spectrum tetracycline antibiotic (and, more recently, as a nonantimicrobial therapy for chronic inflammatory periodontal and skin diseases), can inhibit extracellular matrix degradation in cell culture mediated by human peripheral blood-derived monocytes/macrophages. The mechanisms include downregulation of cytokines and MMP-9 protein levels and the inhibition of the activities of both collagenase and MMP-9.

These results emphasize the impact of Ab–FcR interactions on the

These results emphasize the impact of Ab–FcR interactions on the development of beneficial and detrimental

T-cell responses. Protection against fungal disease has classically been attributed to cell-mediated immune responses and the fact that most invasive fungal infections occur in individuals with impaired cellular immunity, such as AIDS patients, further reinforced this conception 51; however, a large body of evidence, mainly derived from Cryptococcus neoformans and Candida albicans infections, clearly demonstrates that Abs are able to confer protection against these pathogens. The initially conflicting data on INK 128 research buy the protective capacity of Abs in C. neoformans and C. albicans infection led to the belief that Abs were ineffective or even detrimental against these pathogens; however, this view was changed when monoclonal Abs (mAbs) became available and detailed analysis revealed a strong dependence between their protective/permissive

effects and their specificity as well as isotype. An extensive list of protective Ags has been accumulated for C. albicans52; however, Abs directed against certain other find more C. albicans Ags are able to mask or even block this protective effect 53, 54. In addition, certain evidence for the relevance of Ab subclasses with regard to protection against C.albicans exists 55; however, this is not as clear as for cryptococcal infection, where the crucial importance

of the Ab subclass was demonstrated by the fact that a nonprotective Ab to C. neoformans could be converted into a protective Ab by switching from IgG3 to IgG1 56, 57. Opsonization with IgG1 results in augmented phagocytosis of the fungi and is able to arrest fungal growth in macrophages 58, 59. Furthermore, passive transfer of an IgG1mAb protects mice from C. neoformans. This process is strictly dependent on FcR as passive immunization fails to protect FcRγ−/− mice 59. The dependence of this protective effect on activating FcR, together with the fact that Abs are able to arrest fungal growth, Selleckchem ZD1839 raises the question whether Ab-FcR-mediated lysosomal targeting, which is described in detail in the next section, might contribute to Ab-mediated protection against fungal pathogens. Intracellular pathogens have developed a wide panel of effector mechanisms to evade phagolysosomal fusion and degradation within the host cell. Despite the variety of these different pathways, the pathogen’s actions generally result in either escape from the endosome into the cytoplasm (e.g. L. monocytogenes), adaptation to the acidic, bactericidal lysosomal environment (e.g. Coxiella burnetii), or interference with the phagosome maturation pathway (e.g. Brucella) 60.

The lck-DPP kd mice were analyzed for the level and specificity o

The lck-DPP kd mice were analyzed for the level and specificity of DPP2 kd. dpp2 transcript levels were measured, because an antibody against murine DPP2 is currently unavailable. dpp2 mRNA was reduced by about 50% in whole splenocytes (Fig. 1C) and by over 90% in isolated peripheral T cells (Fig. 1D) from lck-DPP2 kd mice compared with littermate controls.

Thymic development was indistinguishable in lck-DPP2-kd and control mice, as evidenced by normal absolute numbers (data not shown) and percentages of thymocyte subsets (Fig. 2). Similarly, the absolute numbers of lymphocytes in the peripheral lymphoid organs were identical to those of littermate controls; however, the proportions of CD4+ and CD8+ T cells were increased about 40% in the spleen and, to a lesser extent, in the lymph nodes of the lck-DPP kd mice, and the proportion Everolimus order of B cells was decreased (Fig. 2). No difference in activation marker expression, CD4+CD44hiCD62L, GPCR Compound Library CD8+CD33hiCD122+, CD25+ and CD69+, was observed in the peripheral T cells of lck-DPP kd compared with control mice (Supporting Information Fig. 2 and data not shown). DPP2 has been shown to maintain cells in a quiescent state, and its inhibition in vitro results in cells drifting into G1 of the cell cycle 5. Thus, we reasoned that the loss of DPP2 may cause T cells to proliferate faster

than normal cells. To test this hypothesis, splenocytes and lymph node cells from lck-DPP kd mice and littermate controls were stimulated with various concentrations of anti-CD3 alone or in combination with anti-CD28, followed by an 8 h [3H]-thymidine pulse at various time points. As shown in Fig. 3A, more T cells from lck-DPP kd mice entered S-phase compared with those of control mice. Even after just two days of stimulation, lck-DPP kd T cells incorporated more [3H]-thymidine into newly synthesized DNA than control T cells, suggesting that DPP2 inhibition causes T cells to proliferate faster. To analyze the proliferative phenotypes of the individual

T-cell subpopulations, CD4+ and CD8+ T cells were isolated from the spleen and lymph nodes by negative selection. Similarly to what we had observed in unseparated selleck antibody lymphocytes, both CD4+ and CD8+ T cells from lck-DPP kd mice proliferated more than those of littermate controls (Fig. 3B and C), thus confirming our initial results. The hyper-proliferative phenotype of the activated T cells from lck-DPP kd mice prompted the analysis of the cytokines secreted by these cells. Whole splenocytes and lymph node cells or isolated CD4+ and CD8+ T cells were simulated with anti-CD3 plus anti-CD28, and supernatants were collected 24, 48 and 72 h later and tested by ELISA for the level of IL-2, IFN-γ, IL-4 and IL-17 cytokines. Very little IL-2 was observed in the supernatant of unseparated lymphocytes (Fig. 4A), probably due to the rapid use of this cytokine by the activated CD8+ T cells.

This might be, as the authors suggest, because these ‘‘self’’-spe

This might be, as the authors suggest, because these ‘‘self’’-specific CD4+ T cells have more antitumor activity independent of CD8+ T cells and B cells. Alternatively, these data are predicted by the threshold hypothesis of Peter Bretscher [23], where low levels of T-cell help promote

Th1 responses while high levels of T-cell help promote a Th2/antibody response at the expense of tumor-destructive cell-mediated immunity [23]. Given that T-cell help promotes different types of immunity and that Th1/CTL cell-mediated immunity is the most useful for tumor elimination, not all types or Ibrutinib in vitro levels of T-cell help will be beneficial in tumor elimination. Examination of the IgG subclass induced in WT versus GUCY2C−/− mice immunized with GUCY2C-S1 may help resolve these possibilities as the subclass is directly determined by the type of T-cell helper response generated (Th1/Th2 etc.). In addition, the efficacy of a particular foreign helper epitope might not be universal. Cross-reactivity of the relevant TCR to an environmental antigen mimic might set the CD4+ T-cell response to exogenous helper determinants into a regulatory/suppressive mode in some individuals. Given the above possibilities, it will be important not to abandon this well-grounded approach of linked foreign

epitopes in cancer vaccines to boost the immune response should initial clinical evaluation suggest a lack of efficacy [24]. Determination of the appropriate Selleckchem NVP-AUY922 helper epitope dose and the consequent level, type, and frequency of restimulation of T-cell help will be needed to take full advantage of this pathway. Determining these parameters for optimal exogenous T-cell help would be anticipated to contribute not only to protection against subsequent tumors but also destruction of already established tumors [25]. It is perhaps instructive that the value in tumor treatment of providing foreigner helper epitopes or blocking coinhibitors (CTLA-4 and PD-1) [26] are both direct predictions ifoxetine from earlier efforts to generate a broad theoretical understanding of the

central problem in immunology, the self/nonself discrimination [27-29] (reviewed in [30]). Although the importance of broad theories in immunology has often been questioned [31], the current progress in tumor immunotherapy provides a testament to their value. The author is supported by a senior scholar award from Alberta Innovates Health Solutions. I thank Dawne Colwell for assistance with artwork. The author declares no financial or commercial conflict of interest. “
“Citation Loureiro B, Oliveira LJ, Favoreto MG, Hansen PJ. Colony-stimulating factor 2 inhibits induction of apoptosis in the bovine preimplantation embryo. Am J Reprod Immunol 2011; 65: 578–588 Problem  Addition of colony-stimulating factor 2 (CSF2) to culture medium increases post-transfer survival of bovine embryos.

7 mm for the femoral nerve

Thus, a direct suture was pos

7 mm for the femoral nerve.

Thus, a direct suture was possible in all cases. In this anatomical study, access to the femoral nerve and two united branches of the obturator nerve was easy, in contrast to transfer in the pelvis. Moreover, direct suture without tension was possible in all cases. Thus, this transfer is simple and perfectly reproducible and may have a clinical application in proximal femoral nerve injuries. © 2012 Wiley Periodicals, Inc. Microsurgery, 2012. “
“The purpose of this study is to describe the early experience of a single surgeon just out of training, including preoperative conditioning, surgical approach, and outcomes in bilateral deep inferior epigastric artery perforator PI3K inhibitor (DIEP) flap breast reconstruction patients. We retrospectively reviewed 54 consecutive patients who underwent 108 DIEP flap breast reconstructions performed by a single surgeon over an initial 2.5-year period. There was 100% overall flap survival. The unplanned reoperation rate was 7.6% (n = 4). Minor complications including nonoperative infection, minor wound dehiscence, and donor site seroma occurred in 26% of patients (n = 14). Significant late complications were abdominal wall bulge (n = 1) and fat necrosis < 10% of volume (n = 1). Tissue expander explantation due to infection occurred in 25% of attempted staged patients

(two of eight); this find more did not seem to compromise their oncologic treatment or final reconstruction outcome. This study demonstrates the efficacy of the DIEP flap for bilateral autologous breast reconstruction in the immediate, staged, and delayed settings. © 2012 Wiley Periodicals, Inc. Microsurgery, 2012. “
“Major scrotal defects may result from infection due to Fournier’s gangrene, excision of scrotal skin diseases, traumatic avulsion of scrotal and penile skin, and genital burns. The wide spectrum of bacterial flora of the perineum, difficulty in providing immobilisation, and obtaining a natural contour of the testes make testicular cover very difficult. Various methods have been reported to cover the penoscrotal area, including skin Erythromycin grafting, transposing them to medial thigh skin, and use of local fasciocutaneous

or musculocutaneous flaps. In this report, reconstruction using six local medial circumflex femoral artery perforator (MCFAP) flaps was undertaken in five male patients (mean age, 47 years) with complex penoscrotal or perineal wounds. The cause of the wounds in four patients was Fournier’s gangrene, and was a wide papillomateous lesion in the other patient. Flap width was 6–10 cm and flap length was 10–18 cm. The results showed that a MCFAP flap provided the testes with a pliable local flap without being bulky and also protected the testicle without increasing the temperature. The other advantage of the MCFAP flap was that the donor-site scar could be concealed in the gluteal crease. Our results demonstrated that the MCFAP flap is an ideal local flap for covering penoscrotal defects.

Less commonly, MS represents an acute blastic transformation of m

Less commonly, MS represents an acute blastic transformation of myelodysplastic syndromes or myeloproliferative neoplasms. This rare condition commonly consists of a proliferation of more or less immature cells

with a myeloid immunophenotype, very exceptional cases showing a megakaryoblastic or erythroid differentiation. The most common MLN0128 localization of MS is the skin, lymph node, soft tissues and bones, but CNS involvement is exceedingly rare, with no cases reported in the sellar region. We report a 54-year-old man, affected by myeloproliferative neoplasm, JAK2 V617F-positive of 13 years duration, who acutely presented with a third cranial nerve palsy; neuroradiology documented a space-occupying lesion at the level of the sellar, upper clival and right parasellar regions, that was sub-totally removed with

a trans-sphenoidal approach. The histological examination documented a proliferation of large, blastic cells, frequently multinucleated; a diagnosis of MS with megakaryoblastic differentiation, arising in a background of chronic idiopathic myelofibrosis, was suggested by immunohistochemistry, owing to CD42b, CD45, CD61 and LAT (linker for activation of T cells) positivity. Dabrafenib order In addition, homozygous JAK2 V617F mutation was detected from the myeloid sarcoma specimen. A few weeks after surgery, an acute blastic leukemic transformation occurred and, despite chemotherapy, the patient died 2 months after surgery. To the best of our knowledge, else this is the first MS case with megakaryoblastic differentiation arising within the CNS. “
“To improve the diagnostic accuracy of oligodendroglial tumors and to find more convenient parameters that could predict the cytogenetic status, oligodendroglial and astrocytic tumors were cytogenetically and immunohistochemically investigated. Materials included 22 oligodendroglial tumors (15 oligodendrogliomas

and 7 oligoastrocytomas) and 20 astrocytic tumors. 1p loss was examined with the fluorescence in situ hybridization (FISH) method. Expression of GFAP, Olig2 and p53 was immunohistochemically investigated and co-localization of GFAP and Olig2 was evaluated on double-immunostained sections. Furthermore, TP53 mutation analyses were carried out on three oligodendroglial tumors showing p53 protein overexpression with a direct sequence analysis. Our FISH studies demonstrated 1p loss in 73% of oligodendroglial tumors (80% oligodendrogliomas and 57% oligoastrocytomas) and in only 10% of astrocytic tumors. There were no clear-cut morphologic differences between 1p-deleted and 1p-intact oligodendroglial tumors. GFAP and Olig2 were expressed in most oligodendroglial and astrocytic tumors, and their cellular localization was almost independent of each other. Overexpression of p53 was observed in five oligodendroglial tumors, all of which were 1p-intact.

8,9 Screenees who eventually developed ESRD were confirmed by usi

8,9 Screenees who eventually developed ESRD were confirmed by using the two registries and medical records. Among the commonly measured variables, significant predictors of developing ESRD were dip-stick positive proteinuria and haematuria, and hypertension.10 We have been reporting the importance of proteinuria and hypertension. Other predictors in Table 1 are also statistically significant, but the clinical

significance is less than that of proteinuria learn more and hypertension.8–13 Effects of obesity on CKD and ESRD were complex and we observed that the decrease in body mass index was a risk factor for developing CKD14 and ESRD.15 Low glomerular filtration rate (GFR) per se was not significant, unless otherwise associated

with proteinuria.16 The annual incidence of ESRD was approximately 1% in those with dip-stick 3+ and over and renal biopsy recipients. The Japanese Society of Nephrology (JSN) has estimated the prevalence of CKD stage 3 to be 10.4%, 7.6% within the range of 50–59 mL/min per 1.73 m2, in the screened population. The annual GFR decline rate was approximately 0.36 mL/min per 1.73 m2.17 Among those who visited twice in 10 years, GFR declined only in the aged group, 60 years and over.18 Other than high blood pressure and proteinuria, factors related to this age-related GFR decline were not certain. Prevalence of proteinuria, hypertension, DM, click here anaemia, and metabolic syndrome increased with the decline in estimated GFR (eGFR). In April 2008, the Ministry of Health, Labour and Welfare started Tokutei-Kenshin for all residents aged 40–74 years. This strategy is to implement lifestyle modification for

those diagnosed with metabolic syndrome. Initially, the urine test was set as optional, not mandatory for this program. This screening program was not originally planned to detect CKD. The cost for measuring microalbuminuria is only covered for DM patients without obvious nephropathy and the test can be repeated every 3 months. The cost is ¥1150 (>$US 10). A cost–benefit analysis examining the frequency and extent of screening including Anidulafungin (LY303366) microalbuminuria is currently under survey in Japan. Both the JSN and JSDT are working together to educate people and collecting evidence for preventing ESRD and related cardiovascular disease (CVD). The JSN has published the GFR estimation equation based on inulin clearance.19 Using the nationwide registry, Japan Kidney Disease Registry (J-KDR), several cohort studies are underway. Late referral to nephrologists, which is defined as dialysis started within 1 year after referral is common.20,21 According to the 2007 annual report of the JSDT, the late referral rate was 69.3%, and that of less than 1 month was 37.7%. Such ‘late referral’ has a negative impact on survival after starting dialysis.