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Summary Background The clinical relevance of the diagnostic criteria for prediabetes to prediction of progression to diabetes has been little studied. We aimed to compare the prevalence of prediabetes when assessed by the new glycated haemoglobin A1c (HbA1c ) 5·7–6·4% criterion or by impaired fasting glucose, and assessed differences in progression rate to diabetes between these two criteria for prediabetes in a Japanese population. Methods Our longitudinal cohort study included 4670 men and 1571 women aged 24–82 years without diabetes at baseline (diabetes was defined as fasting plasma glucose ≥7·0 mmol/L, self-reported clinician-diagnosed diabetes, or HbA1c ≥6·5%) who attended Toranomon Hospital (Tokyo, Japan) for a routine health check between 1997 and 2003. Participants with a baseline diagnosis of prediabetes according to impaired fasting glucose (fasting plasma glucose 5·6–6·9 mmol/L) or HbA1c 5·7–6·4%, or both, were divided into four groups on the basis of baseline diagnosis of prediabetes. Rate of progression to diabetes was assessed annually. Findings Mean follow-up was 4·7 (SD 0·7) years. 412 (7%) of 6241 participants were diagnosed with prediabetes on the basis of the HbA1c 5·7–6·4% criterion. Screening by HbA1c alone missed 1270 (61%) of the 2092 prediabetic individuals diagnosed by a combination of impaired fasting glucose and HbA1c 5·7–6·4%. Overall cumulative probability of progression to diabetes did not differ significantly between participants with prediabetes discordantly diagnosed by either HbA1c or impaired fasting glucose alone (incidence was 7% for HbA1c alone [n=412 individuals and 30 incident cases] and 9% for impaired fasting glucose alone [n=1270, 108 cases]; log-rank test, p=0·3317). Multivariate-adjusted hazard ratios for incident diabetes were 6·16 (95% CI 4·33–8·77) for those diagnosed with prediabetes by impaired fasting glucose alone and 6·00 (3·76–9·56) for diagnosis by HbA1c alone, and were substantially increased to 31·9 (22·6–45·0) for diagnosis by both impaired fasting glucose and HbA1c compared with normoglycaemic individuals. Interpretation Diagnosis of prediabetes by both the new HbA1c criterion and impaired fasting glucose identified individuals with an increased risk of progression to diabetes. Although the new HbA1c criterion identified fewer individuals at high risk than did impaired fasting glucose, the predictive value for progression to diabetes assessed by HbA1c 5·7–6·4% was similar to that assessed by impaired fasting glucose alone. The two tests used together could efficiently target people who are most likely to develop diabetes and allow for early intervention. Funding Japan Society for the Promotion of Science; Ministry of Health Labor and Welfare, Japan.

BackgroundWe determined the long-term clinical outcome and the durability of treatment cessation after HBsAg seroclearance following nucleos(t)ide analog (NA) therapy in patients with chronic hepatitis B (CHB).MethodsWe analyzed virological relapse (VR), HBsAg reversion, clinical relapse, and changes in HBsAg and HBcrAg levels by iTACT assay after treatment cessation of 90 CHB patients who achieved HBsAg seroclearance by NA treatment.ResultsMedian age of patients at treatment cessation was 57 years. Median duration of NA treatment and follow-up from cessation of NA were 9.25 and 5.2 years, respectively. Although VR occurred in 19 of 90 (21.1%) patients, HBV DNA levels of 18 patients had temporal elevations and sustained levels under the detection level thereafter. HBsAg reversion using Architect HBsAg QT assay occurred in six patients (6.7%) after cessation of NA. Five patients had temporal HBsAg level elevations and sustained levels under the detection level thereafter. One patient had virological and clinical relapse at 6 months after cessation of NA, and received NA re-treatment. HBsAg levels by iTACT assay from end of treatment (EOT) gradually decreased and in 18 of 28 (64%) patients reached an undetectable level at 5 years after EOT. In contrast, HBcrAg levels by iTACT assay slowly decreased, and in 8 of 29 patients (28%) reached an undetectable level at 5 years after EOT.ConclusionsPatients receiving NA treatment who achieved HBsAg seroclearance as determined by HBsAg QT assay rarely experienced virological or clinical relapse after the cessation of treatment.

BackgroundZinc deficiency is likely to occur in chronic liver disease. The aim of this study was to determine the prevalence of zinc deficiency in different types of chronic liver disease and to identify the factors that predicted low serum zinc levels.MethodsThe study was an observational single-center design. We obtained the medical records of 666 patients with chronic liver disease whose serum zinc levels had been measured. The cutoff value for zinc deficiency was a serum level < 70 µg/dL.ResultsSerum zinc levels in the alcoholic liver disease (ALD) group were significantly lower than in the other groups (hepatitis C virus [HCV], hepatitis B virus [HBV], and other cause) (P < 0.01). The CONUT and ALBI score (r = 0.527, P < 0.01), serum zinc level and ALBI score (r = − 0.607, P < 0.01), and serum zinc level and CONUT score (r = − 0.465, P < 0.01) correlated with each other. The prevalence of zinc deficiency were 44.8%, 63.2%, 86.7%, 97.1%, and 100% in the mALBI grade 1-CONUT normal, CONUT undernutrition, and mALBI grade 2a, 2b, and 3 groups, respectively. Multivariate analysis identified ALD, CONUT score, aspartate aminotransferase, and hemoglobin as significant, independent predictors of zinc deficiency (P < 0.05).ConclusionsThis study identified ALD, CONUT score, aspartate aminotransferase, and hemoglobin as predictors of zinc deficiency in chronic liver disease. The rate of zinc deficiency is high even in patients classified as mALBI grade 1, especially in ALD, while caution may be required in those classified as mALBI grade 1-CONUT undernutrition.

Background Suppressive activity of recurrence by interferon-free direct-acting antivirals (DAA) is not elucidated after curative treatment of hepatocellular carcinoma (HCC). Patients and Methods A total of 177 patients received DAA after curative manners of HCC: 89 patients underwent DAA therapy after initial HCC treatment, and the other 88 patients after repeated therapy of 2–10 times. Among a cohort of HCC patients with surgery and radiofrequency ablation, 89 patients were chosen adjusting age, gender, and Barcelona Clinic Liver Cancer (BCLC) staging with 89 patients with initial HCC therapy. Results HCC recurrence rates at the end of first and second year were 18.1 and 22.1% in patients with once of HCC therapy, 28.2 and 41.6% in those with 2–3 times of therapy, and 60.2 and 74.5% in those with 4 or more times of therapy, respectively ( P  < 0.0001). Recurrence rates were compared between 89 patients with DAA therapy after initial HCC therapy and 89 age-, gender-, and BCLC staging-matched patients without antiviral therapy after initial HCC therapy. HCC recurrence rates at first and second year were 18.1 and 25.0% in patients with DAA therapy and 21.8 and 46.5% in those without DAA therapy, respectively ( P  = 0.003). Multivariate analysis showed DAA therapy significantly decreased recurrence rate with a hazard ratio of 0.353 (confidence interval: 0.191–0.651) after adjustment with covariates of tumor multiplicity, alpha-fetoprotein value, and prothrombin time. Conclusions DAA therapy significantly decreased recurrence rate when it was performed after initial HCC therapy.

Aims/Introduction It is suspected that Helicobacter pylori is associated with extradigestive diseases including diabetes. So far, a number of studies have examined the association between H. pylori and diabetes, and the results were conflicting. The aim of the present study was to examine the association between H. pylori infection, eradication and diabetes. Materials and Methods The present cross‐sectional study was carried out using data from annual health checkups carried out at the Toranomon Hospital Health Management Center. The status of H. pylori infection, determined by serum antibodies and history of eradication, was categorized into three groups as “never,” “current” and “past.” The association between H. pylori infection and diabetes was examined using logistic regression. Results Of 21,634 participants, 6,530 (30.2%) had a current or past history of H. pylori infection, and 1,184 (5.5%) were identified as having diabetes. Multivariate adjusted odds ratios for diabetes compared with the “never” group were 1.36 (95% confidence interval 1.10–1.67) for the “current” group and 0.92 (95% confidence interval 0.79–1.07) for the “past” group. The association between H. pylori infection and diabetes was also observed among participants without a history of eradication. Conclusions We found that current H. pylori infection was associated with an increased risk of diabetes, and the increased risk was not observed among participants after eradication. The results were concordant with the hypothesis that H. pylori infection increases the risk of diabetes. Further studies are necessary to validate the present results.

BackgroundFew studies have demonstrated the potency of tenofovir alafenamide (TAF) in patients with poor response to other nucleos(t)ide analogs (NAs).MethodsWe conducted a retrospective study comprising consecutive 40 patients exhibiting a poor response to other NAs, who subsequently received TAF-containing regimens. The primary outcome was the prevalence of virological response (VR) at each time and maintained virological response (MVR) under TAF-containing regimens until week 96.ResultsIn the entire cohort, the prevalence of MVR was 71.1% (27/38). Further, poor tenofovir disoproxil fumarate (TDF) response was significantly associated with a lower prevalence of MVR (p = 0.014). In TDF-naïve patients, the prevalence of MVR was 92.3% (12/13) and 62.5% (5/8) in patients with lamivudine resistance (LAM-r) and entecavir resistance (ETV-r), respectively. Further, viral load and HBeAg status at baseline were associated with a lower prevalence of MVR (p = 0.013). Among the seven patients with prior TDF exposure, 2 patients achieved MVR. Among them, one patient with development of viral breakthrough during TDF/LAM achieved MVR after switching to TAF/ETV. In contrast, one of the five patients with non-MVR had three substitutions (rtS106C, rtD134N/S, and rtL269I) of quadruple mutations in addition to ETV-r. Other patients with rtA181T + rtN236T also could not achieve MVR.ConclusionTAF exhibited high antiviral potency in patients with LAM-r and ETV-r. However, TAF potency was associated with previous TDF response, viral load, and HBeAg status at baseline. Additionally, a quadruple mutation may impact tenofovir resistance; however, further studies are needed to verify this.

Aims/Introduction To provide age‐ and sex‐specific trends, age‐standardized trends, and projections of diabetes prevalence through the year 2030 in the Japanese adult population. Materials and Methods In the present meta‐regression analysis, we included 161,087 adults from six studies and nine national health surveys carried out between 1988 and 2011 in Japan. We assessed the prevalence of diabetes using a recorded history of diabetes or, for the population of individuals without known diabetes, either a glycated hemoglobin level of ≥6.5% (48 mmol/mol) or the 1999 World Health Organization criteria (i.e., a fasting plasma glucose level of ≥126 mg/dL and/or 2‐h glucose level of ≥200 mg/dL in the 75‐g oral glucose tolerance test). Results For both sexes, prevalence appeared to remain unchanged over the years in all age categories except for men aged 70 years or older, in whom a significant increase in prevalence with time was observed. Age‐standardized diabetes prevalence estimates based on the Japanese population of the corresponding year showed marked increasing trends: diabetes prevalence was 6.1% among women (95% confidence interval [CI] 5.5–6.7), 9.9% (95% CI 9.2–10.6) among men, and 7.9% (95% CI 7.5–8.4) among the total population in 2010, and was expected to rise by 2030 to 6.7% (95% CI 5.2–9.2), 13.1% (95% CI 10.9–16.7) and 9.8% (95% CI 8.5–12.0), respectively. In contrast, the age‐standardized diabetes prevalence using a fixed population appeared to remain unchanged. Conclusions This large‐scale meta‐regression analysis shows that a substantial increase in diabetes prevalence is expected in Japan during the next few decades, mainly as a result of the aging of the adult population. We conducted a meta‐regression analysis including 161,087 adults which aimed at assessing time trends in diabetes prevalence in the Japanese population. Age‐standardized prevalence estimates based on the population of the corresponding year showed marked increasing trends, while the age‐standardized estimates using a fixed population appeared to remain unchanged. These findings suggest that in Japan, diabetes prevalence can be expected to increase substantially in the next few decades, mainly as a result of population aging?

Background Reliable noninvasive predictors of the top three causes of death [cardiovascular diseases (CVDs), malignancies, and liver-related events in patients with non-alcoholic fatty liver disease (NAFLD)] have not yet been determined. Methods We retrospectively investigated the incidence of three complications [CVDs, malignancy (except for liver cancer), and liver-related events] in 477 Japanese patients with histo-pathologically confirmed NAFLD for a median follow-up of 5.9 years. In addition to histological findings, we also investigated noninvasive predictors. Results A score of ≥ 2.67 for the noninvasive diagnosis of stage 4 fibrosis based on the Fibrosis-4 ( FIB-4 ) index indicated a high level area under the receiver operating characteristic (AUROC) curve (0.90), sensitivity (82.9%), specificity (86.4%), and negative predictive value [(NPV) of 98.5%]. The yearly incidence rates of CVDs, malignancies, and liver-related events were found to be 1.04%, 0.83%, and 0.30%, respectively. Multivariate analysis identified a FIB-4 index ≥ 2.67 score as a significant and independent, noninvasive predictor of these three complications. Furthermore, the cumulative incidence rates of CVDs were significantly different among the three genotypes of PNPLA3 . PNPLA3 genotype CC, chronic kidney disease (CKD), and FIB-4 index ≥ 2.67 was could be attributed to these three significant CVD risk factors. The rates of CVDs were significantly different among the three subgroups based on the combination of risk factors. In malignancy (except for liver cancer), the incidence rate of colon cancer was 25.0%; in particular, the rate in females was 53.8%. Conclusions Our results highlighted the importance of the PNPLA3 genotype and FIB-4 index ≥ 2.67 on the incidence of complications in Japanese patients with NAFLD, especially the incidence of CVDs. Early diagnosis, based on the presence of one or more risk factors, and early treatment might improve the prognosis for NAFLD patients.

BackgroundGlecaprevir and pibrentasvir (GLE/PIB) are potent antiviral agents for hepatitis C virus (HCV) pan-genotypic infections; however, their clinical effectiveness and safety remain limited in the real-world. This study aimed to evaluate viral responses and the safety of GLE/PIB for patients with chronic HCV-1/2/3 infections during both initial- (Arm A) and re-treatment (Arm B) with all-oral direct-acting antiviral agents (DAAs).MethodsThis prospective-observational cohort study included Japanese patients with chronic HCV-1/2/3 infections (n = 271: 183 in Arm A and 83 in Arm B), who had started receiving GLE/PIB. Primary end point was a sustained virological response (SVR) rate at week 12 (SVR12) after the end of GLE/PIB treatment (EOT).ResultsSVR12 was achieved by 99.4% of patients (180/181: modified intention-to-treat (mITT) analysis excluding 2 patients lost to follow-up) in Arm A. One patient with an HCV-3b infection who discontinued at week 8 failed to achieve SVR12. SVR12 was achieved by 97.7% of patients (85/87: mITT excluding 1 patient lost to follow-up) in Arm B. Virological relapse occurred in 2 patients with HCV-1b, presenting common 5 loci of resistance-associated substitutions (RASs) including A92 RASs in the NS5A lesion at baseline. Any adverse events (AEs) (grade ≥ 3) occurred in 8 patients (3.0%). 8 patients (3.0%) discontinued due to AEs, however, all of them achieved SVR12.ConclusionsInitial and re-treatment with GLE/PIB are effective and safe for Japanese patients with HCV-1/2/3 in real-life settings. Further studies are required to elucidate the mechanism underlying treatment failures of GLE/PIB to completely eradicate HCV worldwide.

The aim of this study was to determine the impact at 5 years of sodium‐glucose cotransporter 2 inhibitor (SGLT2i) in nonalcoholic fatty liver disease (NAFLD) with type 2 diabetes mellitus (T2DM) on liver histopathology and clinical features. In this retrospective study, the histological impacts at 5 years after the start of SGLT2i in NAFLD with T2DM were investigated. Six patients with NAFLD and T2DM were treated for the long term with canagliflozin of SGLT2i, and liver biopsies were obtained at the points of the pretreatment, 24 weeks, 3 years, and 5 years after the start of treatment. The primary outcome was liver histopathological changes at 5 years (defined as decrease in NAFLD activity score of one point or more without worsening in fibrosis stage, compared with the pretreatment). The additional treatment of glucagon‐like peptide 1 receptor agonist (GLP‐1RA) was performed in 2 patients after the point of 3 years, and evaluated as histological worsening. As the primary outcome, histological improvement, no change, and worsening were 50%, 17%, and 33% at 5 years, respectively. Overall, the scores of steatosis, lobular inflammation, ballooning, and fibrosis stage decreased at 5 years in 67%, 33%, 0%, and 33%, respectively. As the secondary outcomes, homeostasis model assessment of insulin resistance and serum ferritin decreased significantly at 5 years. None developed 3‐point major adverse cardiovascular events. Two patients with the addition of GLP‐1RA on SGLT2i did not show the worsening of steatosis, ballooning, and fibrosis stage at 5 years compared with 3 years. Conclusion: A 5‐year follow‐up study with SGLT2i indicated the favorable histological impact on NAFLD with T2DM. (1) 5‐year follow‐up study with SGLT2 inhibitor indicated the favorable histological impact for NAFLD with type 2 diabetes mellitus. (2) The present study suggested the addition of GLP‐1 receptor agonist on SGLT2 inhibitor might be one of useful treatment options for histological improvement to refractory cases of SGLT2 inhibitor.