Leprosy: An Overview of Pathophysiology

Leprosy, also known as Hansen’s disease, is a chronic infectious disease caused by Mycobacterium leprae, a microorganism that has a predilection for the skin and nerves. The disease is clinically characterized by one or more of the three cardinal signs: hypopigmented or erythematous skin patches wit...

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Main Authors: Ramesh Marne Bhat, Chaitra Prakash
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Interdisciplinary Perspectives on Infectious Diseases
Online Access:http://dx.doi.org/10.1155/2012/181089
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author Ramesh Marne Bhat
Chaitra Prakash
author_facet Ramesh Marne Bhat
Chaitra Prakash
author_sort Ramesh Marne Bhat
collection DOAJ
description Leprosy, also known as Hansen’s disease, is a chronic infectious disease caused by Mycobacterium leprae, a microorganism that has a predilection for the skin and nerves. The disease is clinically characterized by one or more of the three cardinal signs: hypopigmented or erythematous skin patches with definite loss of sensation, thickened peripheral nerves, and acid-fast bacilli detected on skin smears or biopsy material. M. leprae primarily infects Schwann cells in the peripheral nerves leading to nerve damage and the development of disabilities. Despite reduced prevalence of M. leprae infection in the endemic countries following implementation of multidrug therapy (MDT) program by WHO to treat leprosy, new case detection rates are still high-indicating active transmission. The susceptibility to the mycobacteria and the clinical course of the disease are attributed to the host immune response, which heralds the review of immunopathology of this complex disease.
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spelling doaj-art-fa1144f4d1dd4af980c75dbb973a0b862025-02-03T01:24:15ZengWileyInterdisciplinary Perspectives on Infectious Diseases1687-708X1687-70982012-01-01201210.1155/2012/181089181089Leprosy: An Overview of PathophysiologyRamesh Marne Bhat0Chaitra Prakash1Department of Dermatology, Father Muller Medical College, Karnataka, Mangalore 572002, IndiaDepartment of Dermatology, Father Muller Medical College, Karnataka, Mangalore 572002, IndiaLeprosy, also known as Hansen’s disease, is a chronic infectious disease caused by Mycobacterium leprae, a microorganism that has a predilection for the skin and nerves. The disease is clinically characterized by one or more of the three cardinal signs: hypopigmented or erythematous skin patches with definite loss of sensation, thickened peripheral nerves, and acid-fast bacilli detected on skin smears or biopsy material. M. leprae primarily infects Schwann cells in the peripheral nerves leading to nerve damage and the development of disabilities. Despite reduced prevalence of M. leprae infection in the endemic countries following implementation of multidrug therapy (MDT) program by WHO to treat leprosy, new case detection rates are still high-indicating active transmission. The susceptibility to the mycobacteria and the clinical course of the disease are attributed to the host immune response, which heralds the review of immunopathology of this complex disease.http://dx.doi.org/10.1155/2012/181089
spellingShingle Ramesh Marne Bhat
Chaitra Prakash
Leprosy: An Overview of Pathophysiology
Interdisciplinary Perspectives on Infectious Diseases
title Leprosy: An Overview of Pathophysiology
title_full Leprosy: An Overview of Pathophysiology
title_fullStr Leprosy: An Overview of Pathophysiology
title_full_unstemmed Leprosy: An Overview of Pathophysiology
title_short Leprosy: An Overview of Pathophysiology
title_sort leprosy an overview of pathophysiology
url http://dx.doi.org/10.1155/2012/181089
work_keys_str_mv AT rameshmarnebhat leprosyanoverviewofpathophysiology
AT chaitraprakash leprosyanoverviewofpathophysiology