27 research outputs found
Serologic indices of hepatitis B virus infection in military recruits in Greece (2004–2005)
BACKGROUND: The prevalence of hepatitis B virus infection in Greece has been decreasing over the last decades. However, recent epidemiological data are lacking. METHODS: We studied 1,840 Army recruits from 05/2004 until 10/2005, and performed serological testing for HBsAg, anti-HBsAg, and anti-HBcAg. We also examined their association with several factors, including age, residential area, socioeconomic class, and educational level. RESULTS: Mean age (± SD) of the recruits was 20.5 (± 2.1) years. Antibodies to HBV core antigen [anti-HBcAg (+)] were found in 31 (1.68%) of 1,840 participants. Only 6 (0.32%) were HBsAg (+)/anti-HBsAg (-)/anti-HBcAg (+), while 21 (1.14%) were HBsAg (-)/anti-HBsAg (+)/anti-HBcAg (+), and 4 (0.22%) were HBsAg (-)/anti-HBsAg (-)/anti-HBcAg (+). Overall, 1,144 recruits (62.17%) had antibodies against HBsAg [HBsAg (-)/anti-HBsAg (+)/anti-HBcAg (-)]; 665 recruits (36.14%) had undetectable anti-HBsAg levels. Multivariable analysis showed that younger age (OR: 0.87; 95% CI: 0.82–0.92) and advanced educational level (OR: 1.59; 95% CI: 1.32–1.93) were independently associated with serologic evidence suggestive of previous HBV vaccination. CONCLUSION: We document a further decline of the prevalence of chronic HBV infection among Greek military recruits, a fact that may support the effectiveness of the ongoing immunization programme
Serum procalcitonin and CRP levels in non-alcoholic fatty liver disease: a case control study
<p>Abstract</p> <p>Background</p> <p>Both C reactive protein (CRP) and procalcitonin (PCT) are well known acute phase reactant proteins. CRP was reported to increase in metabolic syndrome and type-2 diabetes. Similarly altered level of serum PCT was found in chronic liver diseases and cirrhosis. The liver is considered the main source of CRP and a source of PCT, however, the serum PCT and CRP levels in non-alcoholic fatty liver disease (NAFLD) were not compared previously. Therefore we aimed to study the diagnostic and discriminative role of serum PCT and CRP in NAFLD.</p> <p>Methods</p> <p>Fifty NAFLD cases and 50 healthy controls were included to the study. Liver function tests were measured, body mass index was calculated, and insulin resistance was determined by using a homeostasis model assessment (HOMA-IR). Ultrasound evaluation was performed for each subject. Serum CRP was measured with nephalometric method. Serum PCT was measured with Kryptor based system.</p> <p>Results</p> <p>Serum PCT levels were similar in steatohepatitis (n 20) and simple steatosis (n 27) patients, and were not different than the control group (0.06 ± 0.01, 0.04 ± 0.01 versus 0.06 ± 0.01 ng/ml respectively). Serum CRP levels were significantly higher in simple steatosis, and steatohepatitis groups compared to healthy controls (7.5 ± 1.6 and 5.2 ± 2.5 versus 2.9 ± 0.5 mg/dl respectively p < 0.01). CRP could not differentiate steatohepatitis from simple steatosis. Beside, three patients with focal fatty liver disease had normal serum CRP levels.</p> <p>Conclusion</p> <p>Serum PCT was within normal ranges in patients with simple steatosis or steatohepatitis and has no diagnostic value. Serum CRP level was increased in NAFLD compared to controls. CRP can be used as an additional marker for diagnosis of NAFLD but it has no value in discrimination of steatohepatitis from simple steatosis.</p
Effectiveness of treatment with pegylated interferon and ribavirin in an unselected population of patients with chronic hepatitis C: A Danish nationwide cohort study
<p>Abstract</p> <p>Background</p> <p>The effect of peginterferon and ribavirin treatment on chronic hepatitis C virus (HCV) infection has been established in several controlled clinical studies. However, the effectiveness of treatment and predictors of treatment success in routine clinical practice remains to be established. Our aim was to estimate the effectiveness of peginterferon and ribavirin treatment in unselected HCV patients handled in routine clinical practice. The endpoint was sustained virological response (SVR), determined by the absence of HCV RNA 24 weeks after the end of treatment.</p> <p>Methods</p> <p>We determined the proportion of SVR in a nationwide, population-based cohort of 432 patients with chronic HCV infection who were starting treatment, and analyzed the impact of known covariates on SVR by using a logistic regression analysis.</p> <p>Results</p> <p>The majority of treated patients had genotype 1 (133 patients) and genotype 2/3 (285 patients) infections, with 44% and 72%, respectively, obtaining SVR. Other than genotype, the predictors of SVR were age ≤ 45 years at the start of treatment, completion of unmodified treatment, the absence of cirrhosis and non-European origin.</p> <p>Conclusions</p> <p>The effectiveness of peginterferon and ribavirin treatment for chronic hepatitis C in a routine clinical practice is comparable to that observed in controlled clinical trials, with a higher SVR rate in genotype 2 and 3 patients compared to genotype 1 patients. Our data further indicate that age at start of treatment is a strong predictor of SVR irrespective of HCV genotype, with patients 45 years or younger having a higher SVR rate.</p
Circulating sCD14 Is Associated with Virological Response to Pegylated-Interferon-Alpha/Ribavirin Treatment in HIV/HCV Co-Infected Patients
Microbial translocation (MT) through the gut accounts for immune activation and CD4+ loss in HIV and may influence HCV disease progression in HIV/HCV co-infection. We asked whether increased MT and immune activation may hamper anti-HCV response in HIV/HCV patients.98 HIV/HCV patients who received pegylated-alpha-interferon (peg-INF-alpha)/ribavirin were retrospectively analyzed. Baseline MT (lipopolysaccharide, LPS), host response to MT (sCD14), CD38+HLA-DR+CD4+/CD8+, HCV genotype, severity of liver disease were assessed according to Early Virological Response (EVR: HCV-RNA <50 IU/mL at week 12 of therapy or ≥2 log(10) reduction from baseline after 12 weeks of therapy) and Sustained Virological Response (SVR: HCV-RNA <50 IU/mL 24 weeks after end of therapy). Mann-Whitney/Chi-square test and Pearson's correlation were used. Multivariable regression was performed to determine factors associated with EVR/SVR.71 patients displayed EVR; 41 SVR. Patients with HCV genotypes 1-4 and cirrhosis presented a trend to higher sCD14, compared to patients with genotypes 2-3 (p = 0.053) and no cirrhosis (p = 0.052). EVR and SVR patients showed lower levels of circulating sCD14 (p = 0.0001, p = 0.026, respectively), but similar T-cell activation compared to Non-EVR (Null Responders, NR) and Non-SVR (N-SVR) subjects. sCD14 resulted the main predictive factor of EVR (0.145 for each sCD14 unit more, 95%CI 0.031-0.688, p = 0.015). SVR was associated only with HCV genotypes 2-3 (AOR 0.022 for genotypes 1-4 vs 2-3, 95%CI 0.001-0.469, p = 0.014).In HIV/HCV patients sCD14 correlates with the severity of liver disease and predicts early response to peg-INF-alpha/ribavirin, suggesting MT-driven immune activation as pathway of HIV/HCV co-infection and response to therapy
Anticardiolipin antibodies in chronic hepatitis B and chronic hepatitis D infection, and hepatitis B-related hepatocellular carcinoma. Relationship with portal vein thrombosis
Objective To assess the presence of anticardiolipin antibodies (ACAs) in
patients with chronic hepatitis B virus (HBV) infection, chronic
hepatitis D virus (HDV) infection and HBV-related hepatocellular
carcinoma (HCC) and to associate this with the incidence of portal vein
thrombosis (PVT) in HCC patients.
Patients and methods Sixty-five cirrhotic patients with HBV-related HCC,
28 naive patients with chronic HBV infection and 14 naive patients with
chronic HDV infection were enrolled prospectively in the study.
Thirty-two healthy blood donors were used as controls. The ACAs
(immunoglobulin G and immunoglobulin M) were measured using an
enzyme-linked immunosorbent assay system. Statistical analysis used
non-parametric methodology (chi-squared test Student t-test and Fisher
exact test P value <0.05).
Results Eleven of the 65 patients with HCC (16.9%) showed a positive
ACA titre and 22 of the patients (34%) had PVT. Of these patients,
eight (36%) had a positive ACA titre. In contrast from the 43 patients
without PVT, only three (11%) showed a positive titre. From the 28 HBV
patients, six (21.5%) had a positive ACA titre, and six out of 14
(42.8%) HDV patients also showed a positive ACA titre. Three of the six
ACA positive HBV patients presented an extrahepatic manifestation of the
disease. One out of 32 control patients (3%) had positive ACAs.
Conclusion Both chronic HBV and chronic HDV infections are potent
stimulants for the production of ACAs. The presence of ACAs in a great
proportion of HBV-cirrhosis-related HCC patients with PVT suggests their
possible participation in thrombotic mechanisms and in the
hypercoagulable state that occurs in advanced liver disease and HCC
Serum beta2-microglobulin levels in hepatitis B e antigen-negative chronic hepatitis B patients under long term lamivudine monotherapy: Relationship with virological breakthrough
OBJECTIVES: To evaluate the predictive value of serum
beta2-microglobulin (beta2m) levels for virological breakthrough in
hepatitis B e antigen-negative chronic hepatitis B patients under long
term lamivudine monotherapy.
METHODS: Serum beta2m levels were calculated at baseline and every three
months during lamivudine monotherapy in 25 patients with chronic
hepatitis B, using microparticle enzyme immunoassay technology to
investigate their association with biochemical, virological and
histological Outcome data. Cox proportional hazard models were used to
investigate the association between serum beta2m levels and virological
breakthrough.
RESULTS: Seven of 25 (28%), nine of 25 (36%) and 14 of 25 (56%)
chronic hepatitis B patients exhibited virological breakthrough at
months 12, 24 and 36 of treatment, respectively. All chronic hepatitis B
patients who did not show virological breakthrough in the follow-up
period exhibited beta2m elevation in month 3 of treatment. The duration
(in months) of serum beta2m elevation was significantly higher in the
responders group than the nonresponders group (7.3 +/- 2.6 versus 3.8
+/- 3.4, P=0.02). In contrast to patients whose serum beta2m levels were
increased at three months, patients whose beta2m levels were decreased
had a 4.6 times higher risk of experiencing virological breakthrough
(hazards ratio 4.6, 95% CI 1.22 to 17.36). When age, pretreatment serum
alanine aminotransferase and hepatitis B virus DNA levels, and grade of
liver disease were simultaneously included in the same Cox model,
decreased beta2m Status was still associated with increased risk of
virological breakthrough (hazards ratio 12.2, 95% CI 1.28 to 116.8).
CONCLUSIONS: In hepatitis B e antigen-negative chronic hepatitis B
patients under long term lamivudine monotherapy, serum beta2m levels at
three months of treatment, compared with baseline levels, arc good
predictors of risk for virological breakthrough
Plasma pituitary adenylate cyclase activating polypeptide (PACAP) levels in chronic hepatitis B patients under lamivudine treatment
Objective Lamivudine is a nucleoside analogue with potent antiviral
activity against hepatitis B virus (HBV). Plasma pituitary adenylate
cyclase activating polypeptide (PACAP) is a multifunctional neuropeptide
that is produced within the lymphoid microenvironment and induces the
production of Th2-type cytokines. The aim of our study was to
investigate the possible alterations of plasma PACAP-38 levels in
chronic hepatitis B (CHB) patients during lamivudine treatment and to
compare them with biochemical, virological and histological data.
Methods Plasma PACAP-38 levels were measured using competitive
radio-immune analysis (RIA) in 25 CHB patients before and after
completion of a 52-week lamivudine treatment period and in 22 healthy
blood donors. Biochemical evaluation was done at baseline and every
three months during treatment. Virological evaluation (HBV-DNA) was
performed at baseline and at weeks 24 and 52 of treatment. Baseline
liver histology was assessed for all patients at the beginning and at
week 52 of the study for histological comparison with the pretreatment
biopsy, according to the Ishak scoring system. Statistical evaluation of
data was done using analysis of variance and Student’s t-test.
Results Virological breakthrough was observed in seven (28%) patients
at week 52 of treatment. Histological improvement was observed in 21
(84%) CHB patients, despite the emergence of
tyrosine-methionine-aspartate-aspartate (YMDD) mutations. Plasma
PACAP-38 levels were significantly lower in CHB patients at baseline
than in healthy blood donors. Significant elevation of plasma peptide
levels was observed in CHB patients after the completion of lamivudine
treatment period, even in the subgroup of those who exhibited YMDD
variants.
Conclusion The elevation of plasma PACAP-38 levels in treated CHB
patients following lamivudine-induced elimination of viraemia suggests a
possible alteration of T-cellular immune response, resulting in
biochemical and histological remission of liver disease, even in
patients who exhibited virological breakthrough. (C) 2003 Lippincott
Williams Wilkins
Endoscopic variceal ligation vs. propranolol for prevention of first variceal bleeding: a randomized controlled trial
Objectives Data in the literature regarding the role of endoscopic
variceal ligation for the prevention of first variceal bleeding in
cirrhotic patients are controversial. To further explore this issue we
have compared ligation and propranolol treatment in a prospective
randomized study.
Methods Sixty patients with cirrhosis and oesophageal varices with no
history but at high risk of bleeding were randomized to ligation
treatment (30 patients) or propranolol (30 patients). Patients were
followed for approximately 27.5 months.
Results Variceal obliteration was achieved in 28 patients (93.3%) after
3 +/- 1 sessions. The mean daily dose of propranolol was 60.3 +/- 13.3
mg. Two patients (6.7%) in the ligation group and nine patients (30%)
in the propranolol group developed variceal bleeding (P=0.043). The
actuarial risks of variceal bleeding at 2 years were 6.7% and 25%,
respectively. On multivariate analysis, propranolol treatment and grade
III varices turned out to be predictive factors for the risk of variceal
bleeding. Mortality was not different between the two groups. There were
no serious complications due to ligation. Propranolol treatment was
discontinued in four patients because of side effects.
Conclusions Variceal ligation is a safe and more effective method than
propranolol treatment for the prevention of first variceal bleeding in
cirrhotic patients with high-risk varices
A rare combination of type 3 autoimmune polyendocrine syndrome (APS-3) or multiple autoimmune syndrome (MAS-3)
CONTEXT: Type 3 autoimmune polyendocrine syndrome (APS-3) is defined by the presence of an autoimmune thyroid disease and another autoimmune illness, excluding Addison’s disease; this is a frequent combination. CASE PRESENTATION: We report the case of a 55 years old female patient with APS-3, with seven clinical or latent autoimmune manifestations. At 49 years of age she was admitted at the General Hospital for leukopenia, weight loss, tremors, anxiety and diarrhea. The personal history revealed ulcerative colitis and, during the last year, episodes of fever with migrant arthralgia and cutaneous lesions. The patient was evaluated for thyroid function and imaging, mielobiopsy, glycaemic control, gastrointestinal and rheumatologic disorders with specific biochemical tests, imaging and endoscopic procedures. We concluded that the patient was affected by APS-3, characterized by the association of Graves’ disease, autoimmune leukopenia, latent autoimmune diabetes of the adult (LADA), autoimmune gastritis, ulcerative colitis, Sjögren’s and anti-phospholipid syndromes. The patient started low doses of corticosteroid drugs for leukopenia, underwent (131)I therapy for hyperthyroidism and later started substitutive thyroid therapy with l-thyroxine, insulin therapy for LADA, mesalazine for ulcerative colitis and artificial tears for Sjögren’s syndrome. CONCLUSIONS: In this article we report a complex case of APS-3, characterized by the association of seven different autoimmune diseases, which required a complex therapeutic strategy