Publications by authors named "Adda D"

Article Synopsis
  • The introduction of direct-acting antivirals (DAAs) offers hope for eliminating hepatitis C virus (HCV) by 2030, but some patients (2%-12%) experience treatment failure, potentially due to existing drug resistance.
  • A systematic review of 56 studies found a high prevalence of hepatitis C resistance-associated substitutions (RAS) among patients with virological failure after DAA treatment, ranging from 78% to 100% depending on the specific treatment regimen.
  • The findings highlight the importance of monitoring DAA-associated resistance and understanding its implications for future treatment strategies.
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Over 250 million individuals live with chronic hepatitis B (CHB) infection worldwide. A significant proportion of these people often face discrimination defined as the unjust, unfair, or prejudicial treatment of a person on the grounds of their hepatitis B status. Hepatitis B related discrimination has not been widely documented in the literature.

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Article Synopsis
  • Chronic hepatitis B infection (CHB) affects 300 million people and is part of a global effort by the United Nations and WHO to eliminate it as a health threat by 2030.
  • Peer support workers (PSWs) are people who have experienced similar health issues and can help others by providing education and emotional support, especially for those with CHB.
  • Investing in peer support can help improve healthcare access, reduce stigma, and ultimately contribute to the goal of eliminating hepatitis B around the world.
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Article Synopsis
  • * In early 2023, a survey was done with 560 people who have hepatitis B to understand their healthcare experiences and preferences for treatment and care.
  • * The results showed that many people don’t see a doctor regularly for check-ups, want to be more involved in their care decisions, and face challenges with getting affordable medication and knowledgeable providers.
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Nonprofit and nongovernmental organizations have driven and continue to drive hepatitis C elimination by putting people with viral hepatitis and their affected communities at the center of hepatitis elimination efforts. They have been key in driving the decentralization of services and community-based delivery in the hepatitis care pathway to improve the health and well-being of the populations most affected by hepatitis C. This article explores how the formation of the World Hepatitis Alliance (WHA), an international network of community organizations in >100 countries, led to powerful advocacy from community leaders and people with hepatitis, resulting in the establishment of World Hepatitis Day.

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Hepatitis B (HBV) is a major cause of global morbidity and mortality, and the leading cause of liver cancer worldwide. Significant advances have recently been made toward the development of a finite HBV treatment that achieves permanent loss of HBsAg and HBV DNA (so-called "HBV cure"), which could provide the means to eliminate HBV as a public health threat. However, the HBV cure is just one step toward achieving WHO HBV elimination targets by 2030, and much work must be done now to prepare for the successful implementation of the HBV cure.

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The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 17 countries in Africa, Asia, Europe, Latin America and the Middle East, and interventions for achieving the Global Health Sector Strategy on viral hepatitis targets-"WHO Targets" (65% reduction in HCV-related deaths, 90% reduction in new infections and 90% of infections diagnosed by 2030) were considered. Scaling up treatment and diagnosis rates over time would be required to achieve these targets in all but one country, even with the introduction of high SVR therapies. The scenarios developed to achieve the WHO Targets in all countries studied assumed the implementation of national policies to prevent new infections and to diagnose current infections through screening.

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Due to the introduction of newer, more efficacious treatment options, there is a pressing need for policy makers and public health officials to develop or adapt national hepatitis C virus (HCV) control strategies to the changing epidemiological landscape. To do so, detailed, country-specific data are needed to characterize the burden of chronic HCV infection. In this study of 17 countries, a literature review of published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates was conducted, and inputs were validated by expert consensus in each country.

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Factors influencing the morbidity and mortality associated with viremic hepatitis C virus (HCV) infection change over time and place, making it difficult to compare reported estimates. Models were developed for 17 countries (Bahrain, Bulgaria, Cameroon, Colombia, Croatia, Dominican Republic, Ethiopia, Ghana, Hong Kong, Jordan, Kazakhstan, Malaysia, Morocco, Nigeria, Qatar and Taiwan) to quantify and characterize the viremic population as well as forecast the changes in the infected population and the corresponding disease burden from 2015 to 2030. Model inputs were agreed upon through expert consensus, and a standardized methodology was followed to allow for comparison across countries.

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The function of alveolar macrophages (AMS) in patients with pneumonia (n = 7) (Group A) and chronic obstructive pulmonary disease (COPD) (n = 11) (Group B) was investigated by evaluating the rate of phagocytosis and of the intracellular killing. A control group of healthy subjects (n = 8) was also included. Phagocytosis frequency (PHF), phagocytosis index (PHI) and intracellular killing towards Candida albicans were then evaluated.

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Forty-seven patients with stage III nonsmall cell lung cancer (NSCLC) were treated with the sequential administration of combination chemotherapy consisting of cisplatin, epirubicin and etoposide and of irradiation plus lonidamine. The response rate was 49% after chemotherapy with an improvement of 14% after radiation therapy and lonidamine. The median survival was around 15 months for responders and 9 months for nonresponders.

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Cytosol fraction(s) from McFiFi2(s) fibrosarcoma cells (Fcc), isolated from either cultured cells or solid tumors induced in F344 rats, produced a dose-related inhibition of lymphoproliferative responses to several mitogens, whatever the lymphoid organ or the animal species used as the source of lymphocytes. Only stimulated human lymphocytes were not Fcc inhibited; instead, Fcc was a potent stimulator of their spontaneous proliferation. Fcc cytostatic activity was not effective in various cycling cell lines and was restricted to mitogen-stimulated lymphocytes.

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Intravenous aminophylline 0.48 g produced a sharp increase in plasma free fatty acids. After three days of treatment with aminophylline 0.

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In this work we demonstrate a suppressive activity on the induction of experimental allergic encephalomyelitis (EAE) in Lewis rats, transferable to syngeneic animals, challenged with encephalitogenic mixture (myelin basic protein, complete Freud's adjuvant plus Bordetella pertussis organisms) 24 h later. This activity is probably effected by T cells and not by (an) inhibitory serum factor(s). The induction of this specific protection could be due to the penetration of the myelin basic protein antigen into the thymus where we first found suppressive cells.

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The induction of EAE in Lewis rats by basic protein (BP) is suppressed by the transfer of non-draining lymphnode cells from cured animals. The activation of draining lymphnode cells of these cured animals by BP, PHA or ConA is decreased with the addition of non-draining lymph node cells from the same rats.

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