scholarly journals A case of hepatitis B and mycobacterium leprae co-infection causing challenges in diagnosis and treatment

2021 ◽  
Vol 1 (5) ◽  
Author(s):  
Abate Bane ◽  
Keyword(s):  
Hepatitis B ◽  
Peripheral Nerves ◽  
Mycobacterium Leprae ◽  
Hbv Infection ◽  
Upper Respiratory Tract ◽  
Extrahepatic Manifestations ◽  
Chronic Hepatitis B Infection ◽  
Dark Urine ◽  
Chronic Hbv ◽  
Upper Respiratory

Hepatitis B is a viral infection that attacks the liver and can cause both acute and chronic disease. Most patients are asymptomatic when newly infected. However, some can develop acute hepatitis with symptoms that last several weeks, including yellowing of the skin and eyes, dark urine, extreme fatigue, nausea, vomiting and abdominal pain. There are several extrahepatic manifestations that are associated with chronic HBV infection, including arthralgia, weakness, nephritis, and generalized vasculitis. Leprosy is also an infectious disease caused by a bacillus, Mycobacterium leprae, which multiplies slowly. Leprosy mainly affects the skin, the peripheral nerves, mucosa of the upper respiratory tract, and the eyes. The co-infection of HBV and mycobacterium leprae can lead to various manifestations and complications. Hepatitis B co-infection worsen course of leprosy. Leprosy treatment can also lead to flare of latent HBV infection. In this case report, we discuss the challenges faced in diagnosing and treating co-infection and complication of leprosy in a patient with chronic hepatitis B infection. Keywords: leprosy; hepatitis B; leprosy reaction; vasculitis.

scholarly journals A REVIEW ON AGENTS FOR THE TREATMENT OF LEPROSY INFECTION

2021 ◽  
pp. 25-29
Author(s):  
MUHANAD MOHAMED HABIBALLA AHMED ◽  
ANURADHA ◽  
PANKAJ WADHWA
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Respiratory Tract ◽  
Peripheral Nerves ◽  
Chronic Infection ◽  
Mycobacterium Leprae ◽  
Nontuberculous Mycobacterium ◽  
Upper Respiratory Tract ◽  
Multidrug Therapy ◽  
The World ◽  
Upper Respiratory

Leprosy is an ancient disease which is caused due to bacterial infection while curable but endures to be a substantial health problem in numerous parts across the world. It is an extremely contagious disease that is caused by any of 3 strains of bacteria such as Mycobacterium tuberculosis; Nontuberculous Mycobacterium; and Mycobacterium leprae. In several regions of Brazil, leprosy is a health issue which is still an endemic. Mainly skin, peripheral nerves, eyes, and mucosa of the upper respiratory tract are affected due to this chronic infection. As per the data shared by WHO across 159 countries globally, there were around 208,619 new leprosy cases reported. The global prevalence of leprosy is overcome with the aid of multidrug therapy which remains to be the chiefly targeted for treatment. The multidrug therapy gets attention as they show tremendous potential in fighting this disease. This review briefs about the different drugs and strategies which are used in treatment and superintendence of leprosy.

scholarly journals CLINICO EPIDEMIOLOGICAL STUDY OF HANSENS DISEASE (LEPROSY) IN PATIENTS ATTENDING GOVERNMENT GENERAL HOSPITAL, KADAPA

2019 ◽  
pp. 1-3
Author(s):  
Nare Lakshmi Sirisha
Keyword(s):  
General Hospital ◽  
Peripheral Nerves ◽  
Andhra Pradesh ◽  
Mycobacterium Leprae ◽  
Age Group ◽  
Upper Respiratory Tract ◽  
Leprosy Patients ◽  
Study Population ◽  
Upper Respiratory ◽  
Epidemiological Characteristics

Background: Leprosy (also known as Hansen's disease) is a chronic granulomatous infection caused by Mycobacterium Leprae(M.leprae). Incubation period varies from few months to several years (3 months to 10 years). Mode of transmission is via droplets. The disease mainly affects the skin, peripheral nerves, mucosa of upper respiratory tract. Aims and Objectives: To study clinical and epidemiological characteristics of the leprosy patients attending Government General Hospital, Kadapa, Andhra Pradesh, India. Materials andMethods:Thisis a hospital based prospective study carried out over a period of 1 year,fromMay 2018 toApril 2019. consecutive 167 leprosy patients attended the outpatient department of DVL, Government General Hospital, Kadapa, Andhra Pradesh, India were enrolled in this study.The study populationwas divided into 7 groups.Thisinclude age group oflessthan 10 years:11 to 20 years;21 to 30 years:31 to 40 years:41 to 50 years;51to60years;more than60years.Datawas analyzedtostudyclinical andepidemiological characteristics ofleprosydisease. Results: There were 106 males and 61 females in a total of 167 study population. Atotal of 46(27.55%) were aged between 31 to 40 years. Among 167 patients ,145(86.82%) patients has multibacillary form of leprosy. Pure neuritic leprosy was seen 7(4.19%) patients; histoid leprosy seen in 4(2.39%) patients. Conclusion:Leprosy may be down but is not yet out. Continuous efforts are required to prevent this disease from making a resurgence

scholarly journals Possible role of tocopherols in the modulation of host microRNA with potential antiviral activity in patients with hepatitis B virus-related persistent infection: a systematic review

2014 ◽  
Vol 112 (11) ◽  
pp. 1751-1768 ◽  
Author(s):  
S. Fiorino ◽  
L. Bacchi-Reggiani ◽  
S. Sabbatani ◽  
F. Grizzi ◽  
L. di Tommaso ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Antiviral Activity ◽  
Hbv Infection ◽  
Cochrane Library ◽  
Viral Pathogen ◽  
Increased Risk ◽  
B Virus ◽  
Chronic Hbv

Hepatitis B virus (HBV) infection represents a serious global health problem and persistent HBV infection is associated with an increased risk of cirrhosis, hepatocellular carcinoma and liver failure. Recently, the study of the role of microRNA (miRNA) in the pathogenesis of HBV has gained considerable interest as well as new treatments against this pathogen have been approved. A few studies have investigated the antiviral activity of vitamin E (VE) in chronic HBV carriers. Herein, we review the possible role of tocopherols in the modulation of host miRNA with potential anti-HBV activity. A systematic research of the scientific literature was performed by searching the MEDLINE, Cochrane Library and EMBASE databases. The keywords used were ‘HBV therapy’, ‘HBV treatment’, ‘VE antiviral effects’, ‘tocopherol antiviral activity’, ‘miRNA antiviral activity’ and ‘VE microRNA’. Reports describing the role of miRNA in the regulation of HBV life cycle,in vitroandin vivoavailable studies reporting the effects of VE on miRNA expression profiles and epigenetic networks, and clinical trials reporting the use of VE in patients with HBV-related chronic hepatitis were identified and examined. Based on the clinical results obtained in VE-treated chronic HBV carriers, we provide a reliable hypothesis for the possible role of this vitamin in the modulation of host miRNA profiles perturbed by this viral pathogen and in the regulation of some cellular miRNA with a suggested potential anti-HBV activity. This approach may contribute to the improvement of our understanding of pathogenetic mechanisms involved in HBV infection and increase the possibility of its management and treatment.

scholarly journals Hepatitis B Virus Infection in Pregnancy: Immunological Response, Natural Course and Pregnancy Outcomes

2021 ◽  
Vol 10 (13) ◽  
pp. 2926
Author(s):  
Sirinart Sirilert ◽  
Theera Tongsong
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Pregnancy Outcomes ◽  
Natural Course ◽  
Hbv Infection ◽  
Chronic Hbv Infection ◽  
B Virus ◽  
Chronic Hbv ◽  
Adverse Pregnancy ◽  
The Impact

This review aimed to provide an update on the impact of pregnancy on the natural course of hepatitis B virus (HBV) infection and also on the impact of HBV infection on adverse pregnancy outcomes, including mother-to-child transmission (MTCT). For the literature review, original research articles, review articles, and guidelines were narratively reviewed and comprehensively validated. The databases of PubMed, EMBASE, and CINAHL were carefully searched for articles in English on topics related to HBV infection, pregnancy, and vertical transmission from 1960 to May 2021. Immunological changes during pregnancy such as suppression of Th1 response and induction of Th2 immunity lead to an impaired immune reaction to HBV and stimulate viral activity along with the reduction of CD8 T cells to escape immune detection. The impact of pregnancy on the natural course of chronic HBV infection seems to be minimal, while pregnancy can increase morbidity and mortality in the case of advanced HBV hepatitis or cirrhosis. Importantly, hepatitis flare or alanine aminotransferase (ALT) flare can occur during pregnancy and is more common during the postpartum period due to the interaction between HBV and the immune response. Interestingly, the impact of HBV infection on adverse pregnancy outcomes is more serious than ever thought. Updated evidence indicates that pregnancies with chronic HBV infection increase the risk of preterm birth and gestational diabetes, especially in cases of positive hepatitis e antigen (HBeAg).

scholarly journals G‐to‐A Hypermutation in Hepatitis B Virus (HBV) and Clinical Course of Patients with Chronic HBV Infection

2009 ◽  
Vol 199 (11) ◽  
pp. 1599-1607 ◽  
Author(s):  
Chiemi Noguchi ◽  
Michio Imamura ◽  
Masataka Tsuge ◽  
Nobuhiko Hiraga ◽  
Nami Mori ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Clinical Course ◽  
Hbv Infection ◽  
Chronic Hbv Infection ◽  
B Virus ◽  
Chronic Hbv

scholarly journals Cellular inhibitor of apoptosis proteins prevent clearance of hepatitis B virus

2015 ◽  
Vol 112 (18) ◽  
pp. 5797-5802 ◽  
Author(s):  
Gregor Ebert ◽  
Simon Preston ◽  
Cody Allison ◽  
James Cooney ◽  
Jesse G. Toe ◽  
...  
Keyword(s):  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Hbv Infection ◽  
Inhibitor Of Apoptosis ◽  
Inhibitor Of Apoptosis Proteins ◽  
Immunocompetent Mouse ◽  
Immune Mediated ◽  
B Virus ◽  
Chronic Hbv ◽  
Apoptosis Proteins

Hepatitis B virus (HBV) infection can result in a spectrum of outcomes from immune-mediated control to disease progression, cirrhosis, and liver cancer. The host molecular pathways that influence and contribute to these outcomes need to be defined. Using an immunocompetent mouse model of chronic HBV infection, we identified some of the host cellular and molecular factors that impact on infection outcomes. Here, we show that cellular inhibitor of apoptosis proteins (cIAPs) attenuate TNF signaling during hepatitis B infection, and they restrict the death of infected hepatocytes, thus allowing viral persistence. Animals with a liver-specific cIAP1 and total cIAP2 deficiency efficiently control HBV infection compared with WT mice. This phenotype was partly recapitulated in mice that were deficient in cIAP2 alone. These results indicate that antagonizing the function of cIAPs may promote the clearance of HBV infection.

Recombinant hepatitis B core antigen carrying preS1 epitopes induce immune response against chronic HBV infection

Vaccine ◽  
2004 ◽  
Vol 22 (3-4) ◽  
pp. 439-446 ◽  
Author(s):  
Xinchun Chen ◽  
Meizhong Li ◽  
Xiaohua Le ◽  
Weimin Ma ◽  
Boping Zhou
Keyword(s):  
Immune Response ◽  
Hepatitis B ◽  
Hbv Infection ◽  
Core Antigen ◽  
Recombinant Hepatitis ◽  
Chronic Hbv Infection ◽  
Chronic Hbv ◽  
Hepatitis B Core Antigen

scholarly journals Expanded circulating follicular dendritic cells facilitate immune responses in chronic HBV infection

2020 ◽  
Author(s):  
Xiaoyi Li ◽  
Qifan Zhang ◽  
Wanyue Zhang ◽  
Guofu Ye ◽  
Yanchen Ma ◽  
...  
Keyword(s):  
T Cells ◽  
Dendritic Cells ◽  
B Cells ◽  
Hepatitis B ◽  
Immune Responses ◽  
Cd4 T Cells ◽  
Hbv Infection ◽  
Follicular Dendritic Cells ◽  
Chronic Hbv Infection ◽  
Chronic Hbv

Abstract Background: The restoration of host hepatitis B virus (HBV)-specific antiviral immunity is an effective strategy for hepatitis B recovery. Follicular dendritic cells (FDCs) play a crucial role in immune regulation. The goal of the present study was to investigate the characteristics and functions of FDCs in chronic HBV infection. Methods: The frequencies of FDCs in peripheral blood, liver, and spleen were measured in patients with chronic HBV infection. Isolated FDCs from splenic tissues of HBV-related liver cirrhosis-induced hypersplenism patients were cultured with autologous intrasplenic CD4 + T cells and CD19 + B cells.Results: We found that patients with chronic HBV infection had a significantly increased frequency of circulating FDCs compared with that of healthy controls. Additionally, the frequency of circulating FDCs was positively correlated with that of intrahepatic and intrasplenic counterparts. Moreover, a positive correlation between the frequency of circulating FDCs and plasmablast and memory B cells, as well as C-X-C motif chemokine receptor type 5 (CXCR5) + CD4 + T cells and CXCR5 + CD8 + T cells was also observed. Notably, in vitro experiments demonstrated that FDCs derived from splenic tissues of chronic HBV patients facilitated interferon-γ and interleukin-21 production from autologous intrasplenic CD4 + T cells and promoted the proliferation of autologous intrasplenic CD19 + B cells. Conclusions: Expanded FDCs in patients with chronic HBV infection may favor the host immune responses against HBV. The identification of this unique population may contribute to a better understanding of the immune regulatory mechanisms and provide a potential immunotherapeutic target in chronic HBV infection.

HBV vaccination and HBV infection induces HBV-specific natural killer cell memory

Gut ◽  
2020 ◽  
pp. gutjnl-2019-319252 ◽  
Author(s):  
Ratna S Wijaya ◽  
Scott A Read ◽  
Naomi R Truong ◽  
Shuanglin Han ◽  
Dishen Chen ◽  
...  
Keyword(s):  
Hepatitis B ◽  
Nk Cells ◽  
Natural Killer ◽  
Nk Cell ◽  
Killer Cell ◽  
Hbv Infection ◽  
Core Antigen ◽  
Dependent Manner ◽  
Antigen Specificity ◽  
Chronic Hbv

ObjectiveVaccination against hepatitis B virus (HBV) confers protection from subsequent infection through immunological memory that is traditionally considered the domain of the adaptive immune system. This view has been challenged following the identification of antigen-specific memory natural killer cells (mNKs) in mice and non-human primates. While the presence of mNKs has been suggested in humans based on the expansion of NK cells following pathogen exposure, evidence regarding antigen-specificity is lacking. Here, we demonstrate the existence of HBV-specific mNKs in humans after vaccination and in chronic HBV infection.DesignNK cell responses were evaluated by flow cytometry and ELISA following challenge with HBV antigens in HBV vaccinated, non-vaccinated and chronic HBV-infected individuals.ResultsNK cells from vaccinated subjects demonstrated higher cytotoxic and proliferative responses against autologous hepatitis B surface antigen (HBsAg)-pulsed monocyte-derived dendritic cells (moDCs) compared with unvaccinated subjects. Moreover, NK cell lysis of HBsAg-pulsed moDCs was significantly higher than that of hepatitis B core antigen (HBcAg)-pulsed moDCs (non-vaccine antigen) or tumour necrosis factor α-activated moDCs in a NKG2D-dependent manner. The mNKs response was mediated by CD56dim NK cells coexpressing CD57, CD69 and KLRG1. Further, mNKs from chronic hepatitis B patients exhibited greater degranulation against HBcAg-pulsed moDCs compared with unvaccinated or vaccinated patients. Notably, mNK activity was negatively correlated with HBV DNA levels.ConclusionsOur data support the presence of a mature mNKs following HBV antigen exposure either through vaccination or infection. Harnessing these antigen specific, functionally active mNKs provides an opportunity to develop novel treatments targeting HBV in chronic infection.

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