Hepatitis C viremia increases the association with type 2 diabetes mellitus in a hepatitis B and C endemic area: an epidemiological link with virological implication

Dual-etiology MAFLD: the interactions between viral hepatitis B, viral hepatitis C, alcohol, and MAFLD

Metabolic dysfunction-associated fatty liver disease (MAFLD) and viral hepatitis due to chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection are common liver diseases worldwide. Excessive alcohol consumption and alcoholic liver disease (ALD) are also emerging health problems. Therefore, in clinical practice, we may encounter subjects with dual etiology of liver diseases such as coexisting MAFLD/HBV, MAFLD/HCV, and MAFLD/ALD. In this review, we summarize the epidemiology, clinical features, and mutual interactions of MAFLD with coexisting HBV, HCV, or ALD. The impact of MAFLD on the progression of liver diseases and treatment outcomes in patients with chronic viral hepatitis and the clinical questions to be addressed regarding dual MAFLD and ALD are also discussed.

Hepatitis C virus antibody seropositivity is associated with albuminuria but not peripheral artery disease in patients with type 2 diabetes

Hepatitis C virus (HCV) infection is prevalent in patients with type 2 diabetes mellitus (DM). We aimed to investigate whether HCV antibody (Ab) seropositivity is associated with diabetic micro- and macro-vascular diseases. In this hospital-based cross-sectional study, we retrospectively collected data from patients who participated in the diabetes pay-for-performance program and underwent HCV Ab screening in the annual comprehensive assessment between January 2021 and March 2022. We examined the relationships of HCV Ab seropositivity with the spot urinary albumin-to-creatinine ratio (UACR) and ankle-brachial index (ABI) in patients aged ≥ 50 years with type 2 DM. A total of 1758 patients were enrolled, and 85 (4.83%) of the enrolled patients had HCV Ab seropositivity. Multivariable regression analyses revealed that albuminuria showed a dose-dependent association with HCV Ab seropositivity (UACR [30-299 mg/g]: odds ratio [OR] = 1.463, 95% confidence interval [CI] 0.872‒2.456); UACR [≥ 300 mg/g]: OR = 2.300, 95% CI 1.160‒4.562; P for trend = 0.015) when compared with normal albuminuria (UACR < 30 mg/g). However, the proportion of patients with peripheral arterial disease, defined as an ABI ≤ 0.9, was not significantly different between the groups with and without HCV Ab seropositivity (3.5% vs. 3.9%, P = 0.999). In conclusion, severely increased albuminuria, but not the ABI, showed a significant association with HCV Ab seropositivity in patients aged ≥ 50 years with type 2 DM.

Effect of viral hepatitis on type 2 diabetes: A Mendelian randomization study

BACKGROUND

The effects of viral hepatitis (VH) on type 2 diabetes (T2D) remain controversial.

AIM

To analyze the causal correlation between different types of VH and T2D using Mendelian randomization (MR).

METHODS

Single nucleotide polymorphisms of VH, chronic hepatitis B (CHB), chronic hepatitis C (CHC) and T2D were obtained from the BioBank Japan Project, European Bioinformatics Institute, and FinnGen. Inverse variance weighted, MR-Egger, and weighted median were used to test exposure-outcome associations. The MR-Egger intercept analysis and Cochran's Q test were used to assess horizontal pleiotropy and heterogeneity, respectively. Leave-one-out sensitivity analysis was used to evaluate the robustness of the MR analysis results.

RESULTS

The MR analysis showed no significant causal relationship between VH and T2D in Europeans [odds ratio (OR) = 1.028; 95% confidence interval (CI): 0.995-1.062, P = 0.101]. There was a negative causal association between CHB and T2D among East Asians (OR = 0.949; 95%CI: 0.931-0.968, P < 0.001), while there was no significant causal association between CHC and T2D among East Asians (OR = 1.018; 95%CI: 0.959-1.081, P = 0.551). Intercept analysis and Cochran's Q test showed no horizontal pleiotropy or heterogeneity (P > 0.05). Sensitivity analysis showed that the results were robust.

CONCLUSION

Among East Asians, CHB is associated with a reduced T2D risk, but this association is limited by HBV load and cirrhosis. Although VH among Europeans and CHC among East Asians are not associated with the risk of T2D, focusing on blood glucose in patients with CHC is still relevant for the early detection of T2D induced by CHC-mediated pathways of hepatic steatosis, liver fibrosis, and cirrhosis.

TASL, TADE, and DAROC consensus for the screening and management of hepatitis C in patients with diabetes

Diabetes mellitus (DM) and hepatitis C virus (HCV) infection are prevalent diseases globally and emerging evidence demonstrates the bidirectional association between the two diseases. Direct-acting antivirals (DAAs) for HCV have a high treatment success rate and can significantly reduce the risks of short and long-term complications of HCV infection. However, despite the evidence of the association between diabetes and HCV and the benefits of anti-HCV treatment, previously published guidelines did not focus on the universal HCV screening for patients with diabetes and their subsequent management once confirmed as having HCV viremia. Nonetheless, screening for HCV among patients with diabetes will contribute to the eradication of HCV infection. Thus, the three major Taiwan medical associations of diabetes and liver diseases endorsed a total of 14 experts in the fields of gastroenterology, hepatology, diabetology, and epidemiology to convene and formulate a consensus statement on HCV screening and management among patients with diabetes. Based on recent studies and guidelines as well as from real-world clinical experiences, the Taiwan experts reached a consensus that provides a straightforward approach to HCV screening, treatment, and monitoring of patients with diabetes.

Improvement of patient-reported outcomes in patients achieving sustained virologic response with direct-acting antivirals for hepatitis C virus infection

BACKGROUND

Patient-reported outcome (PRO) in patients with chronic hepatitis C virus (HCV) infection (CHC) after successful direct-acting antiviral (DAA) therapy remains elusive. The study aimed to investigate the impact of DAA therapy on health-related quality of life (HRQoL). We also assess the associated factors predictive of HRQoL change after sustained virologic response (SVR) to HCV therapy.

METHODS

CHC patients receiving DAA therapy were prospectively recruited. They completed paired HRQoL assessments which included Short-Form-36 (SF-36), Pittsburgh Sleep Quality Index (PSQI) score, Taiwanese Depression Questionnaire score, and State Trait Anxiety Inventory (STAI) score before treatment and at Week 12 off-treatment. Clinical data and characteristics were compared in a paired manner.

RESULTS

A total of 158 patients achieved SVR (SVR rate: 96.6%) were enrolled into the final analysis. Improvement of depression, anxiety, digestive symptoms, and SF-36 items of vitality, body pain, physical functioning, emotional functioning, social functioning, and mental health were demonstrated among SVR patients. Sleep quality, or other SF-36 items were not significantly changed after the treatment. Multivariate analysis revealed that improvement of sleep quality, depression, and anxiety were associated with better HRQoL.

CONCLUSION

SVR to HCV therapy by DAA significantly improved PROs including HRQoL.

Impact of chronic hepatitis on cardiovascular events among type 2 diabetes patients in Taiwan pay-for-performance program

To investigate the impact of chronic hepatitis on cardiovascular events in patients with type 2 diabetes mellitus (T2DM). This nationwide retrospective cohort study included 152,709 adult patients (> 20 years) with T2DM enrolled in the National Health Insurance Diabetes Pay-for-Performance Program from 2008 to 2010 and followed up until the end of 2017. Patients were categorized into groups with hepatitis B, hepatitis C, fatty liver disease, and patients without chronic hepatitis. The incidence of cardiovascular events in patients with T2DM and hepatitis C (79.9/1000 person-years) was higher than that in patients with diabetes combined with other chronic hepatitis, or without chronic hepatitis. After adjusting for confounding factors, T2DM with fatty liver (adjusted hazard ratio [HR]: 1.10; 95% confidence interval [CI]: 1.07–1.13) and hepatitis C (adjusted HR: 1.09; 95% CI: 1.03–1.12) demonstrated a significantly higher risk of cardiovascular events. The adjusted visit-to-visit coefficient of variation of HbA1c and fasting blood glucose were associated with a high risk of cardiovascular events (HRs of the highest quartile were 1.05 and 1.12, respectively). Chronic hepatitis affects cardiovascular events in adult patients with T2DM. Glucose variability could be an independent risk factor for cardiovascular events in such patients.

Low disease awareness as a contributing factor to the high prevalence of hepatitis C infection in Tzukuan, a hyperendemic area of southern Taiwan

Understanding the barriers and tackling the hurdles of hepatitis C virus (HCV) care cascades is key to HCV elimination. The current study aimed to investigate the rates of disease awareness, link-to-care, and treatment uptake of HCV in a hyperendemic area in Taiwan. Tzukuan residents from 2000 to 2018 were invited to participate in the questionnaire-based interviews for HCV. The rates of disease awareness, accessibility, and anti-HCV therapy were evaluated in anti-HCV-seropositive participants. Among 10,348 residents, 1789 (17.3%) were anti-HCV seropositive. Of these 1789 anti-HCV-seropositive participants, data of 594 participants from questionnaire-based interviews in 2005-2018 were analyzed for HCV care cascades. Overall, 24.9% of anti-HCV-seropositive HCV participants had disease awareness, 53.9% of aware participants had accessibility, and 79.8% of assessed participants had received HCV treatment, with a community effectiveness of 10.7%. HCV prevalence decreased over time, from 21.2% in the early cohort to 9.3% in the recent cohort. Disease awareness increased over time, from 15.6% to 41.7%, with the community effectiveness increasing from 1.3% to 28.8%. Lower education levels and normal liver biochemistry were associated with a lower rate of disease awareness. Notably, 68% of participants with abnormal liver biochemistry and 69% of those with advanced fibrosis (FIB-4 > 3.25) were unaware of their HCV disease. We demonstrated huge gaps in disease awareness, link-to-care, and treatment uptake in the HCV care cascade in an HCV-hyperendemic area, even in the initial era of direct-acting antiviral agents. There is an urgent need to overcome these hurdles to achieve HCV elimination.

Itemization difference of patient-reported outcome in patients with chronic liver disease

Background and aims

The itemization difference of patient-reported outcome (PRO) in hepatitis patients with different etiologies remains elusive in Asia. We aimed to assess the characteristics and the difference of health-related quality of life (HRQoL) in chronic hepatitis B (CHB), chronic hepatitis C (CHC), and non-alcoholic fatty liver disease (NAFLD) patients.

Methods

We conducted the study in an outpatient setting. The 36-Item Short Form Health Survey (SF-36) was completed by the patients upon the initial diagnosis and recruitment for a long-term follow-up purpose. The PRO results were also assessed by disease severity.

Results

There were 244 patients (198 males) of CHB, 54 patients (29 males) of CHC, and 129 patients (85 males) of NAFLD, respectively. CHC patient had the mean score of 67.1 ± 23.3 in physical component summary (PCS) of the SF-36 health survey, which was significantly lower than CHB patients (76.4 ± 19.5), and NAFLD patients (77.5 ± 13.7), respectively (p = 0.001). The significantly lower performance of PCS in CHC patients was mainly attributed to the lower performance in physical functioning and bodily pain components. Higher fibrosis 4 index scores were significantly associated with lower PCS scores in all patient groups. There was no significant difference of mean mental component summary (MCS) between groups. However, NAFLD patients had significantly lower mental health scores than other groups (p = 0.02).

Conclusions

The significant difference of HRQoL exists in hepatitis patients with different etiologies. Disease severity leads to a lower PCS performance.

Role of Serum Vitamin D, Interleukin 13, and microRNA-135a in Hepatocellular Carcinoma and Treatment Failure in Egyptian HCV-Infected Patients Receiving Direct Antiviral Agents

Direct-acting antivirals (DAAs) are used for hepatitis C virus (HCV) treatment. However, treatment failure and hepatocellular carcinoma (HCC) development following treatment was reported. In this study, we assessed the role of serum vitamin D, interleukin 13 (IL-13), and microRNA-135a in the prediction of treatment failure with DAA and HCC development among Egyptian HCV-infected patients. A total of 950 patients with HCV-related chronic liver disease underwent DAA treatment. Before DAAs, serum vitamin D and IL-13 were determined by ELISA, and gene expression of miRNA-135a was assessed in serum by real-time PCR. The predictive abilities of these markers were determined using the receiver operating characteristic (ROC) curve. Sustained virological response (SVR) was achieved in 92.6% of HCV-infected patients (responders). High viral load, IL-13, miRNA-135a, and low vitamin D levels were associated with treatment failure and HCC development. HCC development was recorded in non-responders, but not in the responders (35.7% vs. 0% p < 0.001). In conclusion: serum IL-13, Vitamin D, and miRNA-135a could be potential biomarkers in monitoring DAA treatment and HCC prediction. DAAs-induced SVR may decrease the incidence of HCC.

Identifying key genes and screening therapeutic agents associated with diabetes mellitus and HCV-related hepatocellular carcinoma by bioinformatics analysis

Objective

Incidence of both Type 2 diabetes mellitus (T2DM) and hepatocellular carcinoma (HCC) are rapidly increasing worldwide. One of the leading causes of HCC is hepatitis C virus (HCV), which is a resource of blood-borne viral infection. HCV increases the risk for HCC probably by promoting fibrosis and cirrhosis. Association among T2DM and HCV related HCC remains significant, indicating that such association is clinically reliable and robust. Lawson was the first who uncovered HCC in person suffered from T2DM. Until now, genetic association between HCV related HCC and T2DM is poorly known. Current work was designed to figure out the molecular mechanisms of both diseases by identifying the hub genes and therapeutic drugs using integrated bioinformatics analysis.

Methods

Four microarray datasets were downloaded from GEO database and analyzed using R in order to obtain different expressed genes (DEGs). Protein–protein interaction (PPI) networks was constructed using STRING tool and visualized by Cytoscape. Moreover, hub genes were identified on the basis of their degree of connectivity. Finally, Networkanalyst and DGIdb were used for the identification of transcription factors (TFs) and selection of candidate drugs, respectively.

Results

A total of 53 DEGs were identified, of which 41 were upregulated genes and 12 were downregulated genes. PPI network obtained from STRING were subjected to Cytoscape plugin cytoHubba, and top 10 genes (AURKA, JUN, AR, MELK, NCOA2, CENPF, NCAPG, PCK1, RAD51AP1, and GTSE1) were chosen as the target hub genes based on the highest degree of connectivity. Furthermore, 47 drugs of AURKA, JUN, AR, MELK, and NCOA2 were found having therapeutic potential to treat HCV-HCC in patients with T2DM.

Conclusion

This study updates the information and yield a new perspective in context of understanding the pathogenesis and development of HCV related HCC in affected persons with T2DM. In vivo and in vitro investigation of hub genes and pathway interaction is essential to delineate the specific roles of the novel hub genes, which may help to reveal the genetic association between HCV-HCC and T2DM. In future, hub genes along with their candidate drugs might be capable of improving the personalized detection and therapies for both diseases.

Long-term risk of end-stage renal diseases with maintenance dialysis among chronic hepatitis C patients after antiviral therapy in Taiwan

BACKGROUND AND AIM

Chronic hepatitis C virus (HCV) infection is associated with impaired renal function. The aim of this study is to explore the risk of and factors associated with end-stage renal diseases (ESRD) under maintenance dialysis among HCV patients after anti-HCV therapy.

METHODS

A total of 12 696 HCV-infected patients with interferon-based therapy, including 9679 (76.2%) achieving sustained virological response (SVR), were enrolled from 23 hospitals in Taiwan.

RESULTS

During a mean follow-up period of 5.3 years (67 554 person-years), the annual incidence of 4.1/10 000 person-years, 4.0/10 000 and 4.7/10 000 person-years among SVR patients and non-SVR patients, respectively. History of diabetes and baseline estimated glomerular filtration rate < 60 mL/min/m² , instead of SVR, were the significant risk factors for developing ESRD with maintenance dialysis after anti-HCV therapy (adjusted hazard ratio 7.75 and 9.78).

CONCLUSION

Diabetes and baseline impaired renal function were strongly associated with progression to ESRD with maintenance dialysis among chronic HCV-infected patients after antiviral therapy.

Direct antiviral agents in hepatitis C virus related liver disease: Don't count the chickens before they're hatched

Since molecules with direct-acting antiviral (DAA) became available, the landscape of the treatment of hepatitis C virus (HCV) infection has completely changed. The new drugs are extremely effective in eradicating infection, and treatment is very well tolerated with a duration of 8-12 wk. This review aims to report the outstanding clinical benefits of DAA and to highlight their critical disadvantages, identifying some clinically relevant hot topics. First, do the rates of virological response remain as high when patients with more advanced cirrhosis are considered? Large studies have shown slightly lower but still satisfactory rates of response in these patients. Nevertheless, modified schedules with an extended treatment duration and use of ribavirin may be necessary. Second, does the treatment of HCV infection affect the risk of occurrence and recurrence of liver cancer? Incidence is reduced after viral eradication but remains high enough to warrant periodic surveillance for an early diagnosis. In contrast, the risk of recurrence seems to be unaffected by viral clearance; however, DAA treatment improves survival because of the reduced risk of progression of liver disease. Third, can HCV treatment also have favorable effects on major comorbidities? HCV eradication is associated with a reduced incidence of diabetes, an improvement in glycemic control and a decreased risk of cardiovascular events; nevertheless, a risk of hypoglycemia during DAA treatment has been reported. Finally, is it safe to treat patients with HCV/ hepatitis B virus (HBV) coinfection? In this setting, HCV is usually the main driver of viral activity, while HBV replication is suppressed. Because various studies have described HBV reactivation after HCV clearance, a baseline evaluation for HBV coinfection and a specific follow-up is mandatory.

Non-autoimmune diabetes mellitus and the risk of virus infections: a systematic review and meta-analysis of case-control and cohort studies

A significant number of studies invoked diabetes as a risk factor for virus infections, but the issue remains controversial. We aimed to examine whether non-autoimmune diabetes mellitus enhances the risk of virus infections compared with the risk in healthy individuals without non-autoimmune diabetes mellitus. In this systematic review and meta-analysis, we assessed case-control and cohort studies on the association between non-autoimmune diabetes and viruses. We searched PubMed, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, and Web of Science with no language restriction, to identify articles published until February 15, 2021. The main outcome assessment was the risk of virus infection in individuals with non-autoimmune diabetes. We used a random-effects model to pool individual studies and assessed heterogeneity (I²) using the χ2 test on Cochrane's Q statistic. This study is registered with PROSPERO, number CRD42019134142. Out of 3136 articles identified, we included 68 articles (90 studies, as the number of virus and or diabetes phenotype varied between included articles). The summary OR between non-autoimmune diabetes and virus infections risk were, 10.8(95% CI: 10.3-11.4; 1-study) for SARS-CoV-2; 3.6(95%CI: 2.7-4.9, I² = 91.7%; 43-studies) for HCV; 2.7(95% CI: 1.3-5.4, I² = 89.9%, 8-studies;) for HHV8; 2.1(95% CI: 1.7-2.5; 1-study) for H1N1 virus; 1.6(95% CI: 1.2-2.13, I² = 98.3%, 27-studies) for HBV; 1.5(95% CI: 1.1-2.0; 1-study) for HSV1; 3.5(95% CI: 0.6-18.3 , I² = 83.9%, 5-studies) for CMV; 2.9(95% CI: 1-8.7, 1-study) for TTV; 2.6(95% CI: 0.7-9.1, 1-study) for Parvovirus B19; 0.7(95% CI: 0.3-1.5 , 1-study) for coxsackie B virus; and 0.2(95% CI: 0-6.2; 1-study) for HGV. Our findings suggest that, non-autoimmune diabetes is associated with increased susceptibility to viruses especially SARS-CoV-2, HCV, HHV8, H1N1 virus, HBV and HSV1. Thus, these viruses deserve more attention from diabetes health-care providers, researchers, policy makers, and stakeholders for improved detection, overall proper management, and efficient control of viruses in people with non-autoimmune diabetes.

Treatment of Hepatitis C Virus and Long-Term Effect on Glycemic Control

BACKGROUND

Chronic hepatitis C virus (HCV) infection has been linked to worsening glycemic control in patients with diabetes due to insulin resistance. Studies have shown that treating HCV improves glycemic control in this patient population. Most studies assess glycemic control until the patient's sustained viral response at 12 weeks (SVR12).

OBJECTIVES

To (a) assess the sustainability of glycemic control after the SVR12 date and (b) determine the change in diabetic medication use over time.

METHODS

This was a retrospective chart review of patients treated at an academic medical center's hepatology clinic from 2014 through 2017. Patients were eligible for review if they were treated for hepatitis C and had type 2 diabetes mellitus (DM) or pre-DM, defined by a hemoglobin A1c (A1c) > 5.7%, at baseline. Data were collected from the EPIC database available to Temple University Hospital. Results were analyzed using a linear mixed model and descriptive statistics.

RESULTS

Of the 1,073 patients screened, 310 met the eligibility criteria. Most patients achieved SVR12 (87.8%). A statistically significant decrease in A1c from baseline to treatment completion with direct-acting antivirals (DAAs) and until current reading was seen (P < 0.05). Overall, A1c was reduced in patients treated for HCV with DAA by -0.27% (95% CI = -0.479% to -0.055%, P = 0.014) from baseline to current reading. No statistically significant difference existed in A1c at time of SVR12 to current reading (difference in A1c = 0.07%, 95% CI = -0.26% to 0.4%, P = 0.67), indicating that the reduction in A1c achieved by treating HCV can be sustained over time. Insulin dose also decreased from baseline to current values.

CONCLUSIONS

Overall, patients with diabetes successfully treated for the hepatitis C virus may be able to maintain improved glycemic control past SVR12. This could lead to less antidiabetic medication use and decreased insulin requirements for this patient population.

DISCLOSURES

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. The authors report no conflicts of interest.

The epidemiological profile of chronic hepatitis C with advanced hepatic fibrosis regarding virus genotype in Taiwan: A nationwide study

BACKGROUND/PURPOSE

This study aims at investigating the epidemiological profile of chronic hepatitis C (CHC) regarding hepatitis C virus (HCV) genotype in Taiwan.

METHODS

A total of 29,087 CHC patients with advanced fibrosis who received direct-acting antivirals (DAAs) therapy under Taiwan's National Health Insurance (NHI) during 2017-2018 were recruited. The HCV genotype distribution and its association with patients' demographic factors including age, gender, and geographical areas were examined.

RESULTS

The most common genotypes were 1b (59.5%) and 2 (30.1%) with characteristics of older age (mean ± standard deviation (SD): 66.5 ± 10.7 years and 67.3 ± 10.9 years) and female gender predominant (57.1% and 59.4%), which were associated with iatrogenic infection decades ago. Most of patients with genotype 1a (5.9%) and 6 (3.7%) infection were relatively younger (59.2 ± 12.0 years and 60.0 ± 13.8 years) and male gender predominant (59.1% and 61.1%), except Liujia and Liuying districts in southern Taiwan. The youngest group (53.2 ± 11.8 years) and most male gender predominant (74.3%) was genotype 3 (0.37%). These genotypes with characteristics of being younger and male gender predominant were highly related to injection drug use in recent years. The number of genotype 4 patients were extremely rare (n = 25) and efficacy of genotype-4-specific-DAA was significantly poorer than non-genotype-4-specific DAA (P value = 0.0411).

CONCLUSION

The significant differences in demographic characteristics among CHC patients with different HCV genotypes found in this study suggest HCV genotype was highly associated with transmission pattern and may be used as a reference for HCV control.

Elbasvir and grazoprevir for the treatment of hepatitis C

Introduction: Hepatitis C is one of the leading causes of chronic liver disease. The direct-acting-antivirals has revolutionized the chronic hepatitis C treatment. DAAs can achieve a sustained virological response rate >95% in different populations.Area covered: This review summarizes the pharmacokinetics, pharmacodynamics, efficacy, and safety of Elbasvir/Grazoprevir (EBR/GZR).Expert opinion: EBR/GZR is a combination of NS5A and NS3/4A inhibitors. The performance in the EBR/GZR combination's safety and tolerability is appreciated in clinical treatment. EBR/GZR also has a higher barrier to resistance-associated substitutions. Based on clinical trials and real-world experience, elbasvir/grazoprevir is effective in the HCV GT1, 4 infections.

Patients With Chronic Hepatitis C Virus Infection Are at an Increased Risk of Colorectal Cancer: A Nationwide Population-Based Case-Control Study in Taiwan

Aim

Studies evaluating colorectal cancer (CRC) risk associated with chronic hepatitis C virus (HCV) infection are limited.

Methods

In this case-control study, we identify 67,670 CRC cases newly diagnosed from 2005 to 2011 and randomly selected 67,670 controls without HCV and CRC from the same database, frequency matched by age and sex of cases.

Results

Results of logistic regression analysis revealed that the adjusted odds ratio (aOR) of CRC was 1.16 (95% confidence interval [CI] = 1.08–1.24, p < 0.001) in association with chronic HCV. The CRC risk was slightly greater for women than for men. The risk decreased with age, with the aOR decreased from 2.26 (95% CI = 1.32–3.87, p = 0.003) in patients under 45 years old to 1.31 (95% CI = 1.10–1.55, p = 0.03) in patients aged 50–59, and 1.10 (95% CI = 1.00–1.22, p = 0.061) in patients aged over 70.

Conclusions

Our findings suggested that patients with chronic HCV infection are at an elevated risk of developing CRC. Our data also imply that the CRC prevention programs are needed to target younger HCV patients.

Hepatitis B virus infection and diabetes mellitus: the Kailuan prospective cohort study in China

BACKGROUND AND AIMS

The effect of hepatitis B virus (HBV) infection on diabetes has remained unclear. We thus conducted a prospective cohort study to investigate the association between different HBV infection status and new-onset diabetes in a Chinese population.

METHODS

We enrolled 55,520 participants with HBV serological markers and diabetes free in 2010 in Kailuan cohort. Cox regression models were used to analyze the relationship between different HBV infection status and incidence of diabetes after adjusting different confounders.

RESULTS

During an average follow-up of 5.6 years, we identified 6008 incident patients with diabetes. Compared to the participants with hepatitis B surface antigen (HBsAg) negative/hepatitis B surface antibody (anti-HBs) negative/hepatitis B core antibody (anti-HBc) negative, those with chronic HBV infection or with HBsAg negative/anti-HBc positive had a higher risk to occur diabetes. The hazard ratios were 1.18 (95% CI 0.99-1.40, p = 0.0588) and 1.22 (95% CI 1.08-1.36, p = 0.0009), respectively. The association between chronic HBV infection, anti-HBc positive and diabetes was different between those with different levels of high density lipoprotein cholesterol, blood pressure, body mass index, and age.

CONCLUSION

The individuals with chronic HBV infection or anti-HBc positive may have an increased risk of diabetes, and the association may be modified by the different status of metabolism related variables and age. Effective management of HBV infection may contribute to the reduction of the burden of both hepatitis B and diabetes.

2020 Taiwan consensus statement on the management of hepatitis C: part (I) general population

Hepatitis C virus (HCV) infection remains a major public health issue with high prevalence in Taiwan. Recently, the advent of direct-acting antiviral (DAA) agents, with higher efficacy, excellent safety profile, and truncated treatment duration, has revolutionized the paradigm of hepatitis C treatment and made HCV elimination possible. To provide timely guidance for optimal hepatitis C management, the Taiwan Association for the Study of the Liver (TASL) established an expert panel to publish a 2-part consensus statement on the management of hepatitis C in the DAA era. After comprehensive literature review and a consensus meeting, patient-oriented, genotype-guided recommendations on hepatitis C treatment for the general and special populations have been provided based on the latest indications and scientific evidence. In the first part of this consensus, we present the epidemiology and treatment situation of hepatitis C in Taiwan, the development of DAA, pre-treatment evaluation, post sustained virologic response (SVR) monitoring, and most importantly the treatment recommendations for the general population with compensated liver disease. The second part will focus on the treatment recommendations for the special populations.

[Diabetes mellitus and chronic liver diseases. Part 1: general mechanisms of etiology and pathogenesis]

In recent years there has been an active discussion about the relationship between diabetes mellitus (DM) and chronic liver diseases (CLD). On the one hand, patients with diabetes have an increased risk of developing CLD. On the other hand, patients with CLD very often identify abnormal glucose metabolism which ultimately leads to impaired glucose tolerance and the development of diabetes. This review outlines potential causal relationships between some CLD and DM. Common mechanisms that provoke metabolic and autoimmune disorders in the development of various nosologies of the CKD group, leading to steatosis, insulin resistance, impaired glucose tolerance and the development of diabetes are described. Certain features of the assessment of carbohydrate metabolism compensation in patients with hepatic dysfunction, anemia and protein metabolism disorders are described.

Fisiopatología de la hepatitis C y diabetes mellitus. Hacia la cura de dos epidemias en el siglo XXI

La infección crónica por virus de la hepatitis C (VHC) y la diabetes mellitus (DM) son dos problemas de salud pública que impactan los sistemas de salud, con una alta carga económica global. La infección por VHC produce manifestaciones hepáticas tales como hepatitis, cirrosis y carcinoma hepatocelular; asimismo, se ha involucrado en la patogénesis de manifestaciones extrahepáticas, entre las cuales se ha asociado con alteraciones metabólicas como la DM. Estudios longitudinales y transversales han reportado mayor incidencia y prevalencia de DM en pacientes con infección crónica por VHC. La DM acelera la progresión histológica y clínica en pacientes con infección crónica por VHC y las complicaciones cardiovasculares. Recientemente se ha avanzado en el tratamiento y la introducción de nuevos medicamentos como los antivirales de acción directa, que mejoran el control glucémico en estos pacientes.

Association of diabetes mellitus with hepatitis B and hepatitis C virus infection: evidence from an epidemiological study

Objective

To study the association between glucose metabolism disorders and hepatotropic virus infection.

Methods

A cross-sectional analysis was performed using data from the REACTION study (Risk Evaluation of Cancers in Chinese Diabetic Individuals: A Longitudinal Study). Outcomes of the analysis were test results of kidney function, liver function, lipid metabolism, and the prevalence of hepatitis B virus (HBV) infection and potential hepatitis C virus (HCV) infection (positive hepatitis C virus antibody) among individuals with and without diabetes mellitus (DM) or pre-diabetes mellitus (pre-DM).

Results

Of the 10,080 patients who participated in the study, 7665 eligible subjects were included in the analysis. There was no significant difference in the prevalence of HBV infection between DM and normal subjects, pre-DM and normal subjects, and DM or pre-DM and normal subjects (p-values of 0.9180, 0.8154, and 0.6448, respectively). There was also no significant difference in the prevalence of potential HCV infection between DM and normal subjects, pre-DM and normal subjects, and DM or pre-DM and normal subjects (p-values of 0.1190, 0.0591, and 0.5591, respectively). Lipid metabolism showed a significant difference between DM or pre-DM subjects and normal subjects (p-values were less than 0.0221 in all cases). Multiple logistic regression analysis revealed hypertension as the leading significant variable associated with DM, pre-DM, and both. Other significant factors included gender, body mass index, age, and alanine aminotransferase.

Conclusion

No significant association was detected between DM or pre-DM and HBV or potential HCV infection. Significant association was detected between lipid metabolism disorders and DM, but this association was absent in pre-DM patients when adjusting for other factors.

Hepatitis C Direct Acting Antivirals and Ribavirin Modify Lipid but not Glucose Parameters

Chronic hepatitis C (HCV) infection perturbs lipid and glucose metabolism. The influence of direct acting antiviral (DAA) treatment and ribavirin on these measures was evaluated. Furthermore, the effect of HCV cure on these parameters was assessed. Participants were allocated to one of three 12-week treatment groups: non-cirrhotic genotype 1a-paritaprevir/ritonavir/ombitasvir/dasabuvir (PrOD) plus ribavirin; non-cirrhotic 1b-PrOD; compensated cirrhotic 1a or 1b-PrOD plus ribavirin. Fasting insulin, glucose, lipid and apolipoprotein measures were assessed at baseline, Treatment Weeks 4 and 12, and 12 and 24 weeks post-dosing. Twenty-three of 24 participants achieved SVR (PP= 23/24, 96% SVR). Overall, total cholesterol, low-density lipoprotein cholesterol (LDL-C), and triglyceride levels all increased in treatment and post-dosing. However, LDL-C levels decreased during treatment in ribavirin recipients. Fasting glucose, insulin, and HOMA-IR were unchanged during treatment and 12 weeks post-treatment. By 12 weeks post-treatment, controlled attenuation parameter (CAP) scores, a measure of steatosis, increased from baseline (mean 30.3 ± 63.5, p = 0.05). This regimen was safe and highly effective and did not influence glucose metabolism. Ribavirin exposure may mitigate some on-treatment lipid changes. Further mechanistic studies are needed to understand how ribavirin impacts lipid pathways, as there could be therapeutic implications. The metabolic pathophysiology of increased CAP score with HCV treatment requires explanation.

Systematic review with meta-analysis: extrahepatic manifestations in chronic hepatitis C virus-infected patients in East Asia

BACKGROUND

Although the prevalence of extrahepatic manifestations of chronic hepatitis C virus (HCV) infection has been reported from Western countries, their prevalence in East Asian countries is not well known.

AIM

To perform a systematic review to quantify the prevalence of selected extrahepatic manifestations of HCV among patients from East Asia.

METHODS

Medline, CINAHL, EMBASE, Cochrane and country-specific databases were reviewed according to standard guidelines for meta-analyses. Only articles with patients from East Asian countries were included.

RESULTS

After review, 34 articles were selected (Japan = 9; China = 5, Korea = 3, Taiwan = 16, multiple countries = 1) with 646 228 subjects, 66 436 with HCV. Mean age for HCV-infected patients was 56 years (range 41-72 years), 50% were male (range 26%-73%). The pooled prevalence of type 2 diabetes in East Asian HCV patients was 19.0% (95% confidence interval 15.6%-22.9%) (n = 19 studies) with an increased risk when compared to non-HCV: odds ratio (OR) 1.58 (1.28-1.94). The prevalence of chronic kidney disease in HCV was 9.2% (5.0%-16.2%) (n = 7 studies), also with a significantly increased risk: OR=1.98 (1.41-2.77). Pooled prevalence of cardiovascular disease in HCV was 8.6% (3.5%-19.9%) (n = 6 studies), also with an increased risk: OR = 1.55 (1.21-1.98). The prevalence of lichen planus in HCV was 8.9% (3.6%-20.6%) (n = 6 studies) while the prevalence of rheumatoid arthritis was 4.5% (0.6%-25.7%) (n = 4 studies).

CONCLUSIONS

These data show increased risk of developing extrahepatic manifestations in East Asian patients with HCV. Both hepatic and extrahepatic manifestations of the infection should be used to accurately determine the total burden of the disease in the region.

Hepatitis C virus infection and development of type 2 diabetes mellitus: Systematic review and meta-analysis of the literature

Type 2 diabetes mellitus (T2DM) is an endocrine disorder encompassing multifactorial mechanisms, and chronic hepatitis C virus infection (CHC) is a multifaceted disorder, associated with extrahepatic manifestations, including endocrinological disorders. CHC and T2DM are associated, but the subject remains controversial. We performed a systematic review and meta-analysis evaluating such association, searching on PubMed until February 29, 2016. Inclusion criteria were: 1) presence of at least one internal control group age- and gender-matched (non-hepatopathic controls; and/or hepatopathic, not HCV-positive, controls); 2) sufficient data to calculate odds ratio and relative risk. Exclusion criteria were: 1) literature reviews on the topic; 2) publications regarding special populations [human immunodeficiency virus and human T-lymphotropic virus-1 coinfections, hepatocellular carcinoma (HCC), post-transplantation DM, gender selection]; 3) no clear differentiation among HCV patients with CHC, cirrhosis or HCC. Data from each study were independently extracted by two reviewers and cross-checked by AA. Our systematic review returned 544 records, and 33 were included in our meta-analysis. HCV infection is associated with an increased risk of T2DM independently from the severity of the associated liver disease, in CHC and cirrhotic HCV patients. As expected T2DM risk is higher in cirrhotic HCV patients, than CHC, and the prevalence of HCV infection in T2DM patients is higher than in non-diabetic controls. Regarding HBV infection prevalence, no difference exists in diabetic and non-diabetic subjects. An unequivocal CHC and T2DM association was shown. A proactive, integrated approach to HCV and T2DM therapies should maximize benefits of both diseases treatment.

Updates in the management and treatment of HCV genotype 3, what are the remaining challenges?

INTRODUCTION

Chronic hepatitis C (CHC) genotype-3 (G-3) infection is the next most prevalent genotype with 54.3 million patients globally. It is associated with an increasing risk of fibrosis, liver-related events, hepatocellular carcinoma, and overall mortality. G-3 infection may have a negative impact on histological and clinical outcomes in CHC patients. In addition, its characteristic features of steatosis and metabolic abnormalities may add more difficulty in the disease management. Area covered: Fortunately, the landscape of management has been drastically changed in the past decade with the blooming of all oral direct antiviral agents (DAAs). The extremely high efficacy, high safety, short treatment duration, low adverse effects, and easy dosing of DAAs provide an excellent exploration of medical therapeutics in human history. The review consisted of the updated management of CHC G-3, and also touched upon what are the remaining challenges currently. Some challenges and unmet needs were also raised in a clinical setting, including treatment barriers, clinical outcomes, and metabolic abnormalities. Expert commentary: There is a pressing need for management of G-3 infection because of its large patient burden and poor clinical outcomes than other genotypes. Further investigation is warranted in terms of its treatment barriers and clinical outcomes.

[Insulin resistance and chronic hepatitis C]

AIM

To estimate the spread of insulin resistance (IR) in patients with chronic hepatitis C (CHC) and to define the role of IR in the development of hepatic steatosis (HS) and in the progression of liver fibrosis (LF), as well as the impact of IR on the results of antiviral therapy (AVT).

SUBJECTS AND METHODS

A total of 211 patients with CHC were examined. A comparison group consisted of 75 patients with chronic hepatitis B (CHB). The patients were divided according to the presence and absence of IR and type 2 diabetes mellitus (DM). IR was analyzed in patients with CHC with a body mass index (BMI) of <25 kg/m2 and with the initial manifestations of LF.

RESULTS

In the patients with CHC, IR without DM was 1.7-fold more common and type 2 DM was 2.6 times more frequently seen than in those with CHB. The highest biochemical activity, subclinical inflammation (as evaluated from ferritin and C-reactive protein levels), and an advanced LF stage were noted in the presence of IR and type DM. IR and type 2 DM were associated with metabolic syndrome and its individual components and with no response to AVT. When the BMI was <25 kg/m2, HS, inadequate 25(OH)D provision, an advanced LF stage, and slowly progressive inflammation were related to IR. In the presence of the initial manifestations of fibrosis, IR was associated with obesity, HS, 25(OH)D deficiency, a rise in C-reactive protein greater than 3 mg/l, and no response to AVT.

CONCLUSION

The presence of IR in CHC patients with a BMI of <25 kg/m2 and with the initial manifestations of LF and the association of IR with HS and an advanced LF stage necessitate an examination of all patients with CHC in an effort to identify IR and to perform active therapy of detected abnormalities.

Prevalence of Type 2 Diabetes Mellitus among Hepatitis C Virus-Infected Patients: A Systematic Review and Meta-Analysis

<b><i>Background:</i></b> The ever-increasing global prevalence of hepatitis C infection is fueling the burden of diabetes mellitus, which exacerbates various complications and may be a cause of death of millions of people. Several studies have reported that hepatitis C virus infection is an important risk factor for the development of diabetes mellitus. However, fragmented studies have reported variable and inconsistent findings regarding the prevalence of type 2 diabetes mellitus among hepatitis C virus-infected patients. Therefore, this meta-analysis aimed to estimate the overall prevalence of type 2 diabetes mellitus among patients infected with hepatitis C virus. <b><i>Methods:</i></b> This systematic review and meta-analysis includes original articles reporting on cohort and cross-sectional studies. A systematic search was performed in PubMed, ScienceDirect, and Google Scholar. A random-effects meta-analysis model was used to estimate the global pooled prevalence of type 2 diabetes mellitus among hepatitis C-infected patients. A sensitivity analysis was conducted to check the stability of the summary estimate. Heterogeneity was assessed using the <i>I</i>² statistic. A subgroup analysis was also conducted based on geographical region. Funnel plots were used to spot publication bias. <b><i>Results:</i></b> A total of 40 eligible articles reporting data on 14,765 study participants were included in this meta-analysis. The pooled prevalence of type 2 diabetes mellitus among hepatitis C virus-infected patients was 19.67% (95% CI: 17.25, 22.09). The subgroup analysis showed a pooled prevalence of 27.72% (95% CI: 20.79, 34.65) in Africa, 20.73% (95% CI: 17.57, 23.90) in Asia, 16.64% (95% CI: 6.79, 26.49) in North America, and 15.02% (95% CI: 10.66, 19.38) in Europe. <b><i>Conclusions:</i></b> The overall prevalence of type 2 diabetes mellitus among hepatitis C virus-infected patients was considerably higher than in the general population in a global perspective. The highest prevalence was noted in Africa and Asia, followed by North America and Europe. Therefore, early intervention is needed (prevention and early treatment of hepatitis C virus infection) to prevent the development of type 2 diabetes mellitus.

Comparison of type 2 diabetes mellitus incidence in different phases of hepatitis B virus infection: A meta-analysis

BACKGROUND

Because whether hepatitis B virus infection increases the risk of type 2 diabetes mellitus has been a controversial topic, pair-wise and network meta-analyses of published literature were carried out to accurately evaluate the association between different phases of hepatitis B virus infection and the risk of type 2 diabetes mellitus.

METHODS

A comprehensive literature retrieval was conducted from the PubMed, Embase, Cochrane Library and Chinese Database to identify epidemiological studies on the association between hepatitis B virus infection and the risk of type 2 diabetes mellitus that were published from 1999 to 2015. A pair-wise meta-analysis of direct evidence was performed to estimate the pooled odds ratios and 95% confidence intervals. A network meta-analysis was conducted, including the construction of a network plot, inconsistency plot, predictive interval plot, comparison-adjusted funnel plot and rank diagram, to graphically link the direct and indirect comparisons between different hepatitis B virus infective phases.

RESULTS

Eighteen publications (n=113 639) describing 32 studies were included in this meta-analysis. In the pair-wise meta-analysis, the pooled odds ratio for type 2 diabetes mellitus in chronic hepatitis B cirrhosis patients was 1.76 (95% confidence interval: 1.44-2.14) when compared with non-cirrhotic chronic hepatitis B patients. In the network meta-analysis, six comparisons of four hepatitis B virus infectious states indicated the following descending order for the risk of type 2 diabetes mellitus: hepatitis B cirrhosis patients, non-cirrhotic chronic hepatitis B patients, hepatitis B virus carriers and non-hepatitis B virus controls.

CONCLUSION

This study suggests that hepatitis B virus infection is not an independent risk factor for type 2 diabetes mellitus, but the development of cirrhosis may increase the incidence of type 2 diabetes mellitus cirrhosis.

Metabolic Derangement in Acute and Chronic Liver Disorders

AIMS

This study aims to assess glycemic and lipid derangement in acute and chronic liver disorders.

MATERIALS AND METHODS

A cross-sectional study was conducted on 104 patients diagnosed with acute or chronic liver disorder. Acute liver disease (ALD) patients were 40 and chronic liver disease (CLD) patients were 64.

RESULTS

The mean value of fasting plasma glucose (FPG) in patients with ALD was 91.8 ± 5.4 mg/dl and in CLD was 115.7 ± 17.9 mg/dl, the difference was significant. The mean value of A1c was 4.3 ± 0.6 in ALD and 6.1 ± 0.8 in CLD, the difference was significant. In patients with CLD mean cholesterol was higher 177.4 ± 28.8 mg/dl when compared to ALD 140 ± 35.1 mg/dl, but the difference was not significant. ALD patients' high-density lipoprotein (HDL) was 50.4 ± 5.1 mg/dl, and in CLD patients, HDL was 44.4 ± 6.1 mg/dl. In CLD mean triglyceride (T) was 148.9 ± 6.4 mg/dl while in ALD T was 134.8 ± 14.2 mg/dl, the difference was significant.

CONCLUSIONS

CLD is associated with glycemic derangement demonstrated by deranged FPG and A1c. In patients of ALD, no metabolic derangement was observed.

Hepatitis B and C virus infection and diabetes mellitus: A cohort study

The role of hepatitis virus infection in glucose homeostasis is uncertain. We examined the associations between hepatitis B virus (HBV) or hepatitis C virus (HCV) infection and the development of diabetes in a cohort (N = 439,708) of asymptomatic participants in health screening examinations. In cross-sectional analyses, the multivariable-adjusted odds ratio for prevalent diabetes comparing hepatitis B surface antigen (HBsAg) (+) to HBsAg (−) participants was 1.17 (95% CI 1.06–1.31; P = 0.003). The corresponding odds ratio comparing hepatitis C antibodies (HCV Ab) (+) to HCV Ab (−) participants was 1.43 (95% CI 1.01–2.02, P = 0.043). In prospective analyses, the multivariable-adjusted hazard ratio for incident diabetes comparing HBsAg (+) to HbsAg (−) participants was 1.23 (95% CI 1.08–1.41; P = 0.007). The number of incident cases of diabetes among HCV Ab (+) participants (10 cases) was too small to reliably estimate the prospective association between HCV infection and diabetes. In this large population at low risk of diabetes, HBV and HCV infections were associated with diabetes prevalence and HBV infection with the risk of incident diabetes. Our studies add evidence suggesting that diabetes is an additional metabolic complication of HBV and HCV infection.

Diagnosis and Clinical Implications of Diabetes in Liver Cirrhosis: A Focus on the Oral Glucose Tolerance Test

The liver and skeletal muscles are responsible for maintaining glucose metabolism. As chronic liver disease progresses to cirrhosis, the loss of liver function is exacerbated and leads to the deterioration of skeletal muscle. Consequently, impaired glucose tolerance (IGT) and insulin resistance are often observed in patients with liver cirrhosis. Early stage cirrhosis with hepatogenous diabetes is characterized by marked postprandial hyperglycemia and hyperinsulinemia. Generally, it is possible to underestimate IGT when using either the conventional fasting plasma glucose (FPG) criterion or hemoglobin A_1c (HbA_1c) levels despite their status as the gold standard for diagnosing diabetes. The number of cirrhotic patients with diabetes tends to be underestimated because many of these patients show lower FPG levels or HbA_1c, which masks their IGT. In such cases, the oral glucose tolerance test is recommended to evaluate patients with suspected postprandial hyperglycemia who present with a normal FPG. Moreover, in addition to the Child-Pugh score, the early detection of diabetes may be a useful prognostic marker for patients with liver cirrhosis.

Diabetes mellitus, insulin resistance and hepatitis C virus infection: A contemporary review

AIM

To summarise the literature data on hepatitis C virus (HCV)-infected patients concerning the prevalence of glucose abnormalities and associated risk.

METHODS

We conducted a PubMed search and selected all studies found with the key words "HCV" or "hepatitis C virus" and "diabetes" or "insulin resistance". We included only comparative studies written in English or in French, published from January 2000 to April 2015. We collected the literature data on HCV-infected patients concerning the prevalence of glucose abnormalities [diabetes mellitus (DM) and insulin resistance (IR)] and associated risk [i.e., severe liver fibrosis, response to antivirals, and the occurrence of hepatocellular carcinoma (HCC)].

RESULTS

HCV infection is significantly associated with DM/IR compared with healthy volunteers and patients with hepatitis B virus infection. Glucose abnormalities were associated with advanced liver fibrosis, lack of sustained virologic response to interferon alfa-based treatment and with a higher risk of HCC development. As new antiviral therapies may offer a cure for HCV infection, such data should be taken into account, from a therapeutic and preventive point of view, for liver and non-liver consequences of HCV disease. The efficacy of antidiabetic treatment in improving the response to antiviral treatment and in decreasing the risk of HCC has been reported by some studies but not by others. Thus, the effects of glucose abnormalities correction in reducing liver events need further studies.

CONCLUSION

Glucose abnormalities are strongly associated with HCV infection and show a negative impact on the main liver related outcomes.

Chronic hepatitis C virus infection and the risk for diabetes: a community-based prospective study

BACKGROUND

The association between hepatitis C virus (HCV) infection and the occurrence of type II diabetes remains controversial. Prospective studies are needed to assess its causal temporality.

METHODS

A cohort of 21 559 adults enrolled from seven townships in Taiwan during 1991-1992 and followed till the end of 2010. Incident diabetes over a study time period from 2000 to 2010 was ascertained through computerized linkage with the National Health Insurance database and the National Death Certification profiles. Cox's proportional hazards models were used to estimate hazard ratios (HRs) with 95% confidence intervals (CIs). Antibodies against HCV (anti-HCV) were tested for all participants, and serum HCV RNA levels were measured for anti-HCV seropositives.

RESULTS

During 180 244 person-years of follow-up, there were 1917 incident diabetes cases recorded. The cumulative risk for diabetes was 10.9% for anti-HCV seronegatives and 16.7% for anti-HCV seropositives respectively. The HR for diabetes of anti-HCV seropositivity was 1.53 (95% CI: 1.29-1.81) compared with anti-HCV seronegatives after adjustment for risk predictors. The adjusted HRs were 1.63 (1.31-2.02) for anti-HCV seropositives with positive HCV RNA compared to anti-HCV seronegatives (P<.001).

CONCLUSION

Chronic HCV infection was associated with an increased risk for diabetes after adjustment for other risk predictors.

A Different Perspective for Management of Diabetes Mellitus: Controlling Viral Liver Diseases

Knowing how to prevent and treat diabetes mellitus (DM) earlier is essential to improving outcomes. Through participating in synthesis and catabolism of glycogen, the liver helps to regulate glucose homeostasis. Viral related liver diseases are associated with glycometabolism disorders, which means effective management of viral liver diseases may be a therapeutic strategy for DM. The present article reviews the correlation between DM and liver diseases to give an update of the management of DM rooted by viral liver diseases.

Viral Hepatitis and Diabetes: Clinical Implications of Diabetes Prevention Through Hepatitis Vaccination

Viral hepatitis has been posited to play a role in the development of type 2 diabetes. Thus, prevention of viral hepatitis through vaccination has the potential to reduce the burden of type 2 diabetes. We have shown that successful hepatitis B vaccination reduces the risk of diabetes by 33 %. Although diabetes can be prevented by behavior modification and pharmaceutical agents, these require significant personal commitment and cost. In contrast, diabetes prevention through hepatitis B vaccination would require little personal commitment and relatively low cost. In this review, we discuss hepatitis viruses A, B, and C and their interaction with diabetes; explore the potential underlying mechanisms and potential for hepatitis vaccination to reduce diabetes; and estimate the medical expense savings that would result from such an intervention. Given the projected increase of diabetes prevalence in the developing regions, where hepatitis B is endemic, exploration of such an intervention is very timely.

Association of Sjögrens Syndrome in Patients with Chronic Hepatitis Virus Infection: A Population-Based Analysis

Objective

The association between Sjögren’s syndrome (SS) and chronic hepatitis virus infection is inconclusive. Hepatitis B (HBV) and hepatitis C virus (HCV) infections are highly prevalent in Taiwan. We used a population-based case-control study to evaluate the associations between SS and HBV and HCV infections.

Materials and Methods

We identified 9,629 SS patients without other concomitant autoimmune diseases and 38,516 sex- and age-matched controls without SS from the Taiwan National Health Insurance claims data between 2000 and 2011. We utilized multivariate logistic regression to estimate the odds ratios (ORs) and 95% confidence intervals (CIs) of the associations between SS and HBV and HCV infections. Sex- and age-specific (<55 and ≥55 years) risks of SS were evaluated.

Results

The risk of SS was higher in patients with HCV than in those without chronic viral hepatitis (OR = 2.49, 95% CI = 2.16–2.86). Conversely, HBV infection was not associated with SS (OR = 1.10, 95% CI = 0.98–1.24). Younger HCV patients were at a higher risk for SS (<55 years: OR = 3.37, 95% CI = 2.62–4.35; ≥55 years: OR = 2.20, 95% CI = 1.84–2.62). Men with HCV were at a greater risk for SS (women: OR = 2.26, 95% CI = 1.94–2.63; men: OR = 4.22, 95% CI = 2.90–6.16). Only men with chronic HBV exhibited a higher risk of SS (OR = 1.61, 95% CI = 1.21–2.14).

Conclusion

HCV infection was associated with SS; however, HBV only associated with SS in men.

Pretreatment glucose status determines HCC development in HCV patients with mild liver disease after curative antiviral therapy

Although diabetes mellitus (DM) is known to increase the risk of hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC), the impact of dynamic glucose status on HCC occurrence in chronic hepatitis C (CHC) patients receiving antiviral therapy is unclear. In total, 1112 biopsy-proven patients treated with peginterferon/ribavirin were enrolled in this study. Both pretreatment and post-treatment glucose status, including 75 g oral glucose tolerance test (OGTT), were measured to evaluate the association between glucose status and the development of HCC. Of the 1112 patients evaluated, 93 (8.4%) developed HCC >5183.8 person-years of follow-up (annual incidence rate: 1.79%). DM only influenced the risk of developing CC in patients with mild liver disease (F0-2) and a sustained virological response (SVR) but not in other patient subpopulations. Cox-regression analysis demonstrated that the strongest factor associated with HCC in patients with mild liver disease and SVR was the presence of DM (hazard ratio [HR]/95 % confidence intervals [CI]: 3.79/1.420-10.136, P = 0.008), followed by age (HR/CI: 1.06/1.001-1.117, P = 0.046) and platelet count (HR/CI: 0.989/0.979-1.000, P = 0.05). The percentages of SVR patients with F0-2 with normoglycemia, pre-DM, sub-DM (pre-sDM), and DM before treatment were 45.3% (n = 267), 29.9% (n = 176), 15.6% (n = 92), and 9.2% (n = 54), respectively. The percentages of HCC in patients with normoglycemia, pre-sDM, and DM were 1.1%, 3.7%, and 11.1%, respectively (trend P < 0.001). Sixteen of the 19 (84.2 %) HCC patients possessed glucose abnormality (including 6 patients with DM and 10 patients with pre-sDM) before antiviral therapy. Compared to patients with normoglycemia, the incidence of HCC increased gradually from pre-sDM (HR: 3.6, P = 0.05) to DM (HR: 11.6, P = 0.001) (adjusted trend P = 0.004). We concluded that DM is a critical determinant for the development of HCC in SVR patients with mild liver disease. Pre-sDM status carried an additional risk for HCC, and these patients should also be carefully monitored for HCC after viral eradication.

Extrahepatic manifestations of hepatitis C infection: navigating CHASM

This article describes the importance of extrahepatic systemic manifestations of chronic hepatitis C virus (HCV) infection. While most HCV literature focuses on liver injury and fibrosis progression, a spectrum of systemic disease processes, collectively called C hepatitis-associated systemic manifestations (CHASMs), are present in a high proportion of infected persons. These include thyroid disease (Hashimoto's thyroiditis, Graves disease, and thyroid cancer), cardiovascular disease (atherosclerosis, carotid artery disease, and coronary artery disease), renal disease (MPGN and glomerulosclerosis), eye disease (Mooren's ulcers and sicca syndrome), skin disease (PCT, vasculitis, and lichen planus), lymphomas (NHL and splenic T-cell), and diabetes. Mechanistic understanding of how HCV leads to CHASM processes could lead to development of new interventions. The role of early HCV treatment and cure may result in preventive strategies for a variety of complex disease states. Key Points • Systemic extrahepatic complications of HCV comprise a spectrum of disease states in many organs and systems.• Effective treatment of HCV may reduce or eliminate some but not all of these systemic complications.• Further research into early treatment intervention as a prevention strategy for systemic disease is warranted.

Nonalcoholic fatty liver disease severity is associated with the ratios of total cholesterol and triglycerides to high-density lipoprotein cholesterol

BACKGROUND

Limited data support the notion that lipid ratios are risk factors for nonalcoholic fatty liver disease (NAFLD). We evaluated the association between lipid ratios and NAFLD.

METHODS

This was a large population, cross-sectional, retrospective study. Data on NAFLD severity, blood pressure, fasting glucose, total cholesterol (TC), triglyceride (TG), and high-density lipoprotein cholesterol (HDL-C) levels were obtained from 44,767 examinees at single health checkup center. The enrollees were stratified into four subgroups based on their TC/HDL-C and TG/HDL-C ratios. We used multivariate analyses to evaluate the odds between lipid ratios and NAFLD.

RESULTS

The prevalence rate of fatty liver in this study was 53.76%. In the baseline subgroup with the lowest TC/HDL-C and TG/HDL-C ratios, the prevalence of NAFLD, hypertension, and diabetes was lower than that of the other three subgroups. Patients with higher lipid ratios had a significantly greater risk for advanced NAFLD.

CONCLUSIONS

Adults with high TC/HDL-C or TG/HDL-C ratios, or both, have a greater risk for NAFLD, especially advanced NAFLD.

Glucose abnormalities in Asian patients with chronic hepatitis C

Many studies have demonstrated a potential association between type 2 diabetes (T2D) and hepatitis C virus infection in Western countries, while similar evidence is limited in Asia. We compared the prevalence of glucose abnormalities (impaired fasting glucose [IFG] and T2D) and their risk factors between Asian and non-Asian chronic hepatitis C (CHC) patients, and evaluated whether glucose abnormalities impacted the viral responses to peginterferon plus ribavirin treatment (current standard of care in most Asian countries). This study retrospectively analyzed data of 1,887 CHC patients from three Phase II/III studies with alisporivir (DEB025) as treatment for CHC. The chi-square test was used to compare the prevalence of IFG/T2D between Asian and non-Asian CHC patients, and logistic regression was used to adjust for sex, age, and cirrhosis status. Risk factors for IFG/T2D were evaluated using univariate and multivariate analysis. Our results indicated that the prevalence of IFG/T2D was high in both Asian and non-Asian CHC patients (23.0% vs 20.9%), and no significant difference was found between these two populations (adjusted odds ratio: 1.3, 95% confidence interval: 0.97, 1.7; P=0.08). Age, sex, and cirrhosis status were risk factors for IFG/T2D in both populations, while body mass index was positively associated with IFG/T2D in non-Asian but not in Asian participants. No significant differences in sustained virological response rates were seen between patients with normal fasting glucose and patients with IFG/T2D for both populations. These results demonstrate that the prevalence of glucose abnormalities in Asian CHC patients was similar to that in non-Asians, and glucose abnormalities had no impact on viral response to peginterferon plus ribavirin.

Hepatitis B virus infection status and risk of type 2 diabetes mellitus: A meta-analysis

AIM

Whether hepatitis B virus (HBV) infection increases the risk of type 2 diabetes mellitus (T2DM) is controversial. We carried out a meta-analysis to evaluate the association between HBV infection status and the risk of T2DM.

METHODS

The PubMed, Embase and Ovid databases were searched for relevant studies on an association between HBV infection and the risk of diabetes. Methodological quality was assessed using the adapted Newcastle-Ottawa Quality Assessment Scale. A fix- or random-effects model was used to summarize odd ratios (OR) and 95% confidence intervals (CI).

RESULTS

We included seven cohort studies, four case-control and four cross-sectional studies, involving 118 530 participants. The prevalence of T2DM differs by HBV infection status. Pooled estimators indicated a nearly twofold excess T2DM risk with hepatitis B cirrhosis (HBC) status. The summary OR of the risk of T2DM for HBC patients was 1.99 (95% CI, 1.08-3.65) when compared with the non-HBV individuals, and 1.74 (95% CI, 1.43-2.13) when compared with non-cirrhotic chronic hepatitis B (NC-CHB) patients. In contrast, no significant correlation was found between asymptomatic HBV carriers or NC-CHB patients and the incidence of diabetes, compared with non-HBV controls.

CONCLUSION

Our findings suggest that while HBV itself may not be pro-diabetic, the HBV-derived cirrhosis is an independent risk factor for T2DM.

Successful Hepatitis C Antiviral Therapy Induces Remission of Type 2 Diabetes: A Case Report

Patient: Male, 49

Final Diagnosis: Type 2 diabetes

Symptoms: —

Medication: —

Clinical Procedure: —

Specialty: Endocrinology and Metabolic

Assessment of evidence for positive association and seroprevalence of hepatitis B and C in diabetic patients in a developing country

BACKGROUND AND AIM

The data related to the association between hepatitis virus infections and diabetes mellitus (DM) are conflicting. The aim of this study was to investigate the seroprevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) and to determine the risk factors affecting the prevalence in Turkish patients with type 1 DM and type 2 DM.

METHODS

The study consisted of 736 diabetic and 505 nondiabetic patients. Serological investigation for the hepatitis B surface antigen (HBsAg) and the HCV antibody (anti-HCV) was performed with a third-generation commercial chemiluminescence assay. The presence of HBsAg was considered as indicator of HBV infection. The HCV infection in the patients with positive anti-HCV was confirmed by a real-time polymerase chain reaction assay. The patients were divided according to their HBV and HCV infection status, and their demographic features, diabetes properties, general risk factors, and aminotransferase levels were analyzed.

RESULTS

There was no significant difference in the seropositivity rate for the HBsAg (3.8% vs 3.0%, P > 0.43; odds ratio, 1.292; 95% confidence interval, 0.683-2.444). However, anti-HCV seropositivity was significantly increased in the DM group (3.3% vs 1.8%, P < 0.03; odds ratio, 2.398; 95% confidence interval, 1.025-5.609). Increased aminotransferase levels and a history of blood transfusions were positively correlated with both HBV and HCV infection. Moreover, a history of surgical procedures and high glycated hemoglobin A1c levels were positively associated with HBsAg antigen seropositivity.

CONCLUSIONS

Although no significant difference in the seropositivity of the HBsAg was determined, a high prevalence of HCV infection was detected in the DM patients compared to healthy controls.