15 results on '"Thursz, Mark"'
Search Results
2. Hepatitis C Virus Infection: Its Role in Pathogenesis
- Author
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Tillmann, Hans L. and Thursz, Mark
- Published
- 2007
3. Metabolic Profile Reflects Stages of Fibrosis in Patients with Non-Alcoholic Fatty Liver Disease.
- Author
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Jambulingam, Nila, Forlano, Roberta, Preston, Benjamin, Mullish, Benjamin H., Portone, Greta, Baheer, Yama, Yee, Michael, Goldin, Robert D., Thursz, Mark R., and Manousou, Pinelopi
- Subjects
NON-alcoholic fatty liver disease ,PROTON magnetic resonance ,FIBROSIS ,NUCLEAR magnetic resonance - Abstract
Nonalcoholic fatty liver disease (NAFLD) is a leading cause of chronic liver disease worldwide, with fibrosis stage being the main predictor for clinical outcomes. Here, we present the metabolic profile of NAFLD patients with regards to fibrosis progression. We included all consecutive new referrals for NAFLD services between 2011 and 2019. Demographic, anthropometric and clinical features and noninvasive markers of fibrosis were recorded at baseline and at follow-up. Significant and advanced fibrosis were defined using liver stiffness measurement (LSM) as LSM ≥ 8.1 kPa and LSM ≥ 12.1 kPa, respectively. Cirrhosis was diagnosed either histologically or clinically. Fast progressors of fibrosis were defined as those with delta stiffness ≥ 1.03 kPa/year (25% upper quartile of delta stiffness distribution). Targeted and untargeted metabolic profiles were analysed on fasting serum samples using Proton nuclear magnetic resonance (
1 H NMR). A total of 189 patients were included in the study; 111 (58.7%) underwent liver biopsy. Overall, 11.1% patients were diagnosed with cirrhosis, while 23.8% were classified as fast progressors. A combination of metabolites and lipoproteins could identify the fast fibrosis progressors (AUROC 0.788, 95% CI: 0.703–0.874, p < 0.001) and performed better than noninvasive markers. Specific metabolic profiles predict fibrosis progression in patients with nonalcoholic fatty liver disease. Algorithms combining metabolites and lipids could be integrated in the risk-stratification of these patients. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
4. Interleukin-10 promoter polymorphisms and the outcome of hepatitis C virus infection
- Author
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Knapp, Susanne, Hennig, Branwen J. W., Frodsham, Angela J., Zhang, Lyna, Hellier, Simon, Wright, Mark, Goldin, Rob, Hill, Adrian V. S., Thomas, Howard C., and Thursz, Mark R.
- Published
- 2003
- Full Text
- View/download PDF
5. Binge‐eating disorder is associated with an unfavorable body mass composition in patients with non‐alcoholic fatty liver disease.
- Author
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Forlano, Roberta, Harlow, Christopher, Mullish, Benjamin H., Thursz, Mark R., Manousou, Pinelopi, and Yee, Michael
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BODY composition ,BIOMARKERS ,FATTY liver ,SARCOPENIA ,FIBROSIS ,RISK assessment ,MENTAL depression ,MARITAL status ,BODY mass index ,EATING disorders - Abstract
The interaction between eating disorders and non‐alcoholic fatty liver disease (NAFLD) remains unexplored, especially with regards to binge‐eating disorder (BED). Our team conducted a service evaluation project in order to assess risk factors for the presence of BED among patients with NAFLD and the impact of BED on body mass composition. The overall prevalence of patients screening positive to BED Screener‐7 (BEDS‐7) was 28.4%, while a previous diagnosis of depression and marital status (as single or separated) were independently associated with positive BED. Furthermore, patients with positive BEDS‐7 had higher BMI, with greater visceral component and overall lower muscle mass. There was no difference in terms of liver disease severity as assessed by noninvasive markers of fibrosis. However, as body mass composition and sarcopenia have been shown to be associated to disease progression in patients with NAFLD, further studies are required to ascertain the long‐term impact of BED in these patients. Moreover, further work is warranted to identify to implement multidisciplinary approach within clinical psychology for the management of patients with BED, who may be particularly challenging in terms of achieving lifestyle modifications. As a hepatology community, we should address NAFLD with a more holistic approach. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
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6. The hepatitis C cascade of care in people who inject drugs in Dar es Salaam, Tanzania
- Author
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Mohamed, Zameer, Rwegasha, John, Kim, Jin, Shimakawa, Yusuke, Poiteau, Lila, Chevaliez, Stéphane, Bhagani, Sanjay, Taylor-Robinson, Simon, Thursz, Mark, Mbwambo, Jessie, Lemoine, Maud, Wellcome Trust, Imperial College London, Muhimbili National Hospital [Dar es Salaam, Tanzanie] (MNH), Epidémiologie des Maladies Emergentes - Emerging Diseases Epidemiology, Pasteur-Cnam Risques infectieux et émergents (PACRI), Institut Pasteur [Paris]-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Institut Pasteur [Paris]-Conservatoire National des Arts et Métiers [CNAM] (CNAM), Hôpital Henri Mondor, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Henri Mondor-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), Royal Free Hospital [London, UK], This study was supported by the Wellcome Trust Global Centre and the United Kingdom National Institute for Health Research (NIHR) Biomedical Facility at Imperial College London (G606101)., Institut Pasteur [Paris] (IP)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Institut Pasteur [Paris] (IP)-Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Institut Pasteur [Paris]-Conservatoire National des Arts et Métiers [CNAM] (CNAM), and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Institut Pasteur [Paris]-Conservatoire National des Arts et Métiers [CNAM] (CNAM)
- Subjects
Male ,hepatitis C virus ,people who inject drugs ,Hepacivirus ,Tanzania ,DISEASE ,MESH: Genotype ,Sub‐Saharan Africa ,1108 Medical Microbiology ,Mass Screening ,MESH: Hepacivirus ,PLATELET RATIO ,Substance Abuse, Intravenous ,Sub-Saharan Africa ,TRANSIENT ELASTOGRAPHY ,Disease Management ,Continuity of Patient Care ,Viral Load ,MESH: Hepatitis C, Chronic ,PREVALENCE ,Infectious Diseases ,INFECTIONS ,HCV ,Female ,Original Article ,MESH: Viral Load ,Life Sciences & Biomedicine ,USERS ,Adult ,Genotype ,MESH: Disease Management ,HARM REDUCTION ,MESH: Tanzania ,Virology ,parasitic diseases ,cascade of care ,Humans ,MESH: Mass Screening ,MESH: Humans ,Science & Technology ,Gastroenterology & Hepatology ,fungi ,fibrosis ,HIV ,MESH: Adult ,1103 Clinical Sciences ,Original Articles ,LIVER FIBROSIS ASSESSMENT ,Hepatitis C, Chronic ,MESH: Male ,MESH: Continuity of Patient Care ,MESH: Substance Abuse, Intravenous ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,MESH: Female - Abstract
International audience; The World Health Organisation has recently called for hepatitis C virus (HCV) elimination and has identified people who inject drugs (PWID) as a key population to scale-up screening and linkage to care. This study reports the cascade of care for HCV in PWID attending the largest opioid substitution treatment (OST) clinic in Dar-es-Salaam, Tanzania. Between February 2011 and March 2016, HCV serology for all PWID registered at the Muhimbili National Hospital OST clinic, Dar-es-Salaam were obtained from records. In 2015, consecutive HCV-seropositive PWID were invited to undergo a clinical evaluation including epidemiological questionnaire, liver stiffness measurement (Fibroscan) and virological analysis (HCV RNA viral load and genotyping). During the study period, 1350 persons registered at the OST clinic: all had a HCV serology including 409 (30%) positive results. Among the HCV-seropositive individuals, 207 (51%) were active attenders and 153 (37%) were enrolled for clinical assessment: 141 (92%) were male, median age: 38 years (IQR 34-41), and 65 (44%) were co-infected with HIV; 116 patients (76%) had detectable HCV RNA, with genotypes 1a (68%) and 4a (32%); 21 (17%) had clinically significant fibrosis (≥F2) and 6 (5%) had cirrhosis (F4). None were offered HCV treatment. Chronic hepatitis C among PWID enrolled in the OST centre in Dar-es-Salaam is frequent, but its continuum of care is insufficient; integration of HCV diagnosis and treatment should form a part of OST intervention in PWID in Tanzania.
- Published
- 2018
7. Hepatitis B testing and treatment in HIV patients in The Gambia—Compliance with international guidelines and clinical outcomes.
- Author
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Ndow, Gibril, Gore, Mindy L., Shimakawa, Yusuke, Suso, Penda, Jatta, Abdoulie, Tamba, Saydiba, Sow, Amina, Touré-Kane, Coumba, Sadiq, Fouzia, Sabally, Saihou, Njie, Ramou, Thursz, Mark R., and Lemoine, Maud
- Subjects
HIV-positive persons ,HEPATITIS B treatment ,MEDICAL screening ,TENOFOVIR ,LAMIVUDINE ,LIVER analysis ,FIBROSIS - Abstract
Background: Compliance with WHO guidelines on HBV screening and treatment in HIV-coinfected patients is often challenging in resource limited countries and has been poorly assessed in sub-Saharan Africa. Methods: Between 2015 and 2016, we assessed physician’s compliance with WHO guidelines on HIV-HBV coinfection in the largest HIV clinic in The Gambia, and the hepatic outcomes in HIV-HBV coinfected patients as compared to randomly selected HIV-monoinfected controls. Results: 870 HIV-infected patients regularly seen in this clinic agreed to participate in our study. Only 187 (21.5%, 95% CI 18.8–24.3) had previously been screened for HBsAg, 23 (12.3%, 95% CI 8.0–17.9) were positive of whom none had liver assessment and only 6 (26.1%) had received Tenofovir. Our HBV testing intervention was accepted by all participants and found 94/870 (10.8%, 95% CI 8.8–13.1) positive, 78 of whom underwent full liver assessment along with 40 HBsAg-negative controls. At the time of liver assessment, 61/78 (78.2%) HIV-HBV coinfected patients received ART with 7 (11.5%) on Tenofovir and 54 (88.5%) on Lamivudine alone. HIV-HBV coinfected patients had higher APRI score compared to controls (0.58 vs 0.42, p = 0.002). HBV DNA was detectable in 52/53 (98.1%) coinfected patients with 14/53 (26.4%) having HBV DNA >20,000 IU/L. 10/12 (83.3%) had at least one detectable 3TC-associated HBV resistance, which tended to be associated with increase in liver fibrosis after adjusting for age and sex (p = 0.05). Conclusions: Compliance with HBV testing and treatment guidelines is poor in this Gambian HIV programme putting coinfected patients at risk of liver complications. However, the excellent uptake of HBV screening and linkage to care in our study suggests feasible improvements. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
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8. The gamma-glutamyl transpeptidase to platelet ratio (GPR) predicts significant liver fibrosis and cirrhosis in patients with chronic HBV infection in West Africa.
- Author
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Lemoine, Maud, Shimakawa, Yusuke, Nayagam, Shevanthi, Khalil, Mustapha, Suso, Penda, Lloyd, Jo, Goldin, Robert, Njai, Harr-Freeya, Ndow, Gibril, Taal, Makie, Cooke, Graham, D'Alessandro, Umberto, Vray, Muriel, Mbaye, Papa Saliou, Njie, Ramou, Mallet, Vincent, and Thursz, Mark
- Subjects
GAMMA-glutamyltransferase ,FIBROSIS ,CIRRHOSIS of the liver ,CHRONIC hepatitis B ,LIVER cancer ,LIVER biopsy ,ASPARTATE aminotransferase ,PATIENTS - Published
- 2016
- Full Text
- View/download PDF
9. Effect of a thrombin receptor (protease-activated receptor 1, PAR-1) gene polymorphism in chronic hepatitis C liver fibrosis.
- Author
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Martinelli, Ana, Knapp, Susanne, Anstee, Quentin, Worku, Mulugeta, Tommasi, Anna, Zucoloto, Sergio, Goldin, Robert, and Thursz, Mark
- Subjects
THROMBIN ,BLOOD coagulation ,PROTEASE inhibitors ,LIVER diseases ,HEPATITIS C ,FIBROSIS ,GENETIC polymorphisms - Abstract
Background and Aim: Tissue injury leads to activation of coagulation and generation of thrombin. Inhibition of thrombin receptor protease-activated receptor 1 (PAR-1) has been shown to reduce liver fibrosis in animals. This study aimed to evaluate the effect of PAR-1 gene polymorphism on rate of liver fibrosis (RF) in chronic hepatitis C. Methods: Polymorphisms studied: C > T transition 1426 bp upstream of translation start site (-1426C/T), 13 bp repeat of preceding -506 5′-CGGCCGCGGGAAG-3′ sequence (-506I/D), and A > T transversion in intervening sequence (IVS) 14 bp upstream of exon-2 start site (IVS-14A/T). A total of 287 European and 90 Brazilian patients were studied. Results: 1426C/T polymorphism: There was a trend to higher RF in patients with the TT genotype ( P = 0.06) and an association between genotype CC and slow fibrosis ( P = 0.03) in Europeans. In males, RF was significantly higher in those with the TT genotype compared to CT ( P = 0.003) and CC ( P = 0.007). There was a significant association between TT and fast fibrosis ( P = 0.04). This was confirmed in an independent cohort of Brazilians where RF was higher in TT than in CC ( P = 0.03). Analysis of -506I/D showed no difference in RF and distribution of slow/fast fibrosis among different genotypes in both populations. Analysis of IVS-14A/T showed no difference between genotypes. Conclusion: In conclusion, these findings suggest that PAR-1 receptor polymorphisms influence the progression of liver fibrosis. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
10. Quantitative versus morphological assessment of liver fibrosis: semi-quantitative scores are more robust than digital image fibrosis area estimation.
- Author
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Wright, Mark, Thursz, Mark, Pullen, Rebecca, Thomas, Howard, and Goldin, Robert
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LIVER disease diagnosis , *DIAGNOSTIC imaging - Abstract
Background/Aim: Digital image analysis (DIA) allows quantitative assessment of fibrosis on liver biopsy. Accurate determination of a threshold greyscale level representing fibrous tissue is critical. This method has not been fully evaluated in clinical practice. Methods: Digital images of stained liver biopsy sections were captured by microscopy and converted to greyscale. A novel method of determining the threshold greyscale value at which to measure fibrosis area was developed (peak proportion area change (PPAC)). Reproducibility was tested in comparison with standard interactive thresholding and with semi-quantitative scoring using the Histological activity index (HAI) system by a histopathologist. Fibrosis areas for different sections from the same biopsy core were also compared by each method. Results: Comparison between PPAC and interactive thresholding method demonstrated superior reproducibility of the PPAC method: r > 0.7, P < 0.001 compared with r = 0.19–0.64 (not all reaching significance). On a single section, reproducibility was similar for PPAC and the modified HAI system. When different sections from the same core were compared, the HAI system was more robust. Conclusions: The PPAC method is superior to standard interactive thresholding. However, variability in DIA scores between sections invalidates the technique for clinical use and semi-quantitative scoring systems remain the gold standard for fibrosis assessment. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
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11. Diagnostic accuracy of the gamma-glutamyl transpeptidase to platelet ratio (GPR) using transient elastography as a reference.
- Author
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Lemoine, Maud, Thursz, Mark, Mallet, Vincent, and Shimakawa, Yusuke
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GAMMA-glutamyltransferase ,HEPATITIS diagnosis ,BLOOD platelets ,FIBROSIS ,ELASTOGRAPHY ,DIAGNOSIS ,THERAPEUTICS - Published
- 2017
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12. The prevalence and burden of symptoms in patients with chronic liver diseases in The Gambia, West Africa.
- Author
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Shimakawa, Yusuke, Takao, Yuki, Anderson, Suzanne T, Taal, Makie, Yamaguchi, Takashi, Giana, Lamin, Ndow, Gibril, Sarr, Louise, Kambi, Abubacarr, Njai, Harr Freeya, Bottomley, Christian, Nyan, Ousman, Sabally, Saihou, D’Alessandro, Umberto, Taylor-Robinson, Simon D, Thursz, Mark, Lemoine, Maud, and Njie, Ramou
- Subjects
CIRRHOSIS of the liver ,PAIN diagnosis ,HEPATOCELLULAR carcinoma ,FIBROSIS ,NAUSEA ,ALPHA fetoproteins ,CHRONIC diseases ,CONSTIPATION ,CLINICAL drug trials ,INFORMED consent (Medical law) ,LIVER diseases ,MEDICAL care ,PALLIATIVE treatment ,PATIENTS ,QUESTIONNAIRES ,SERIAL publications ,STATISTICS ,ULTRASONIC imaging ,DATA analysis ,CROSS-sectional method ,DISEASE complications ,SYMPTOMS ,DIAGNOSIS ,DISEASE risk factors - Abstract
The article offers information on a cross-sectional study concerning the burden and symptom prevalence in hepatocellular carcinoma (HCC) patients in Gambia. It mentions that chronic disease patients were investigated using a symptom questionnaire. It shows that pain was the most common symptom in HCC patients.
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- 2015
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13. Iron, haemochromatosis and thalassaemia as risk factors for fibrosis in hepatitis C virus infection.
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Thursz, Mark
- Subjects
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GENETIC mutation , *HEMOGLOBINS , *IRON , *FIBROSIS , *HEPATITIS C virus , *VIRUS diseases , *HEMOCHROMATOSIS - Abstract
The article comments on the paper about the significance of hemoglobin Β mutations in the development of hepatic iron overload and fibrosis in patients with chronic hepatitis C virus infection. The author stresses that the prevalence of such mutation than what is expected in the patient may result of a bias presented by using a clinic-based population. He stresses that the difference in the effect of hereditary hemochromatosis and Β-globin mutations emphasize the role of iron.
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- 2007
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14. The Role of Liver Fibrosis Assessment in the Management of Patients with Chronic Hepatitis B Infection: Lessons Learned from a Single Centre Experience.
- Author
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Malik, Raza, Kennedy, Patrick, Suri, Deepak, Brown, Ashley, Goldin, Rob, Main, Janice, Thomas, Howard, and Thursz, Mark
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HEPATITIS B , *LIVER diseases , *FIBROSIS , *SEROLOGY , *RADIOLOGY , *HISTOLOGY - Abstract
Background & Aims. Assess the clinical utility of the Prati criteria and normal ALT (<40 IU/L) in a cohort of patients with chronic hepatitis B infection (CHB). Methods. Serology, radiology, and histology were obtained in 140 patients with CHB. Results. HBeAg+ group: 7 patients (7/56-12% HBeAg+ group) misclassified as "immunotolerant", with HBV DNA > 6 log copies/ml and normal ALT, who in fact had moderate/severe fibrosis on liver biopsy. HBeAg- group: 10 patients with normal ALT and moderate/severe fibrosis on liver biopsy; 4 of these patients had >3 log copies/ml HBV DNA levels and 6 patients misclassified as "inactive carriers" with negative HBV DNA levels normal ALT and moderate/severe fibrosis (6/84-7% HBeAg- group). Two male HBeAg+ and three male HBeAg- patients with ALT between 20 and 30 IU/L and moderate/severe fibrosis on liver biopsy would have been further mischaracterised using the Prati criteria for normal ALT. Age and ethnic group weremore important predictors of moderate/severe fibrosis in multivariate analysis. Conclusion. HBeAg status, age, ethnic origin with longitudinal assessment of LFTs and viral load should be studied in patients with "normal ALT" at the upper end of normal range (ALT 20-40 IU/L) to appropriately classify patients and identify patients for liver fibrosis assessment to inform treatment decisions. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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15. SAT-294-Automated quantitation of steatosis, inflammation, ballooning and fibrosis using machine learning in routine histological images of liver biopsies of patients with NAFLD.
- Author
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Forlano, Roberta, Mullish, Benjamin H., Giannakeas, Nikos, Maurice, James, Tsipouras, Markos, Tzallas, Alexandros, Yee, Michael, Lloyd, Josephine, Goldin, Robert D., Thursz, Mark, and Manousou, Pinelopi
- Subjects
- *
FATTY liver , *LIVER biopsy , *MACHINE learning , *INFLAMMATION , *FIBROSIS , *CELLULAR pathology - Published
- 2019
- Full Text
- View/download PDF
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