{"title":"Leprosy reactions: New knowledge on pathophysiology, diagnosis, treatment and prevention.","authors":"Hitaishi Mehta, Sejal Jain, Tarun Narang, Seema Chhabra, Sunil Dogra","doi":"10.25259/IJDVL_915_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_915_2024","url":null,"abstract":"<p><p>Leprosy, or Hansen's disease, caused by Mycobacterium leprae and Mycobacterium lepromatosis, is a chronic granulomatous infectious disease. Leprosy reactions, characterised by neurocutaneous inflammation, complicate the disease's indolent course, leading to significant morbidity. However, limited knowledge of reaction pathophysiology stems from a lack of experimental models and the abrupt onset of reactional episodes, posing challenges in delineating initial pathogenic steps. In type 1 reactions, ongoing studies explore the roles of interferon-gamma which results in increased interleukin (IL)-15 and autophagy. Leprosy reactions also exhibit an increase in T helper 17 (Th17) and a decrease in T-regulatory cell (Treg) populations, resulting in diminished tumour growth factor-beta and heightened IL-6 and IL-21 production. Exploring the pathogenesis of erythema nodosum leprosum (ENL) reveals insights into neutrophils, Toll-like receptor 9, B-cells, myeloid-derived suppressor cells, IL-10 pathway and neurotrophins. Noteworthy therapeutic targets include increased expression of cyclooxygenase 2 and vascular endothelial growth factor. Early reaction diagnosis is crucial to limit neural damage, with high-resolution ultrasonography showing promise in detecting minimal nerve involvement. Therapies for ENL management, such as thalidomide, methotrexate, apremilast, minocycline and tumour necrosis factor-alpha inhibitors, hold potential. This review addresses recent advances in leprosy reaction pathogenesis and diagnostics, offering therapeutic insights and preventive strategies to mitigate their onset.</p>","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-12"},"PeriodicalIF":3.2,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Baricitinib in the management of persistent actinic granuloma: An innovative therapeutic approach.","authors":"Ran An, Junting Tang, Hao-Xue Lei, Yin Tu","doi":"10.25259/IJDVL_554_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_554_2024","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-3"},"PeriodicalIF":3.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Channaraya Aradita, Srihari Sahana, P S S Ranugha, Garehatty Rudrappa Kanthraj
{"title":"Prevalence of polysensitivity in allergic contact dermatitis: A five-year retrospective study.","authors":"Channaraya Aradita, Srihari Sahana, P S S Ranugha, Garehatty Rudrappa Kanthraj","doi":"10.25259/IJDVL_880_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_880_2024","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-3"},"PeriodicalIF":3.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143255991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Syphilis renaissance: Truth or mirage. Analysis of syphilis trends and possible factors from a tertiary care centre in North India.","authors":"Narayanan Baskaran, Muthu Sendhil Kumaran, Tarun Narang, Sanjeev Handa","doi":"10.25259/IJDVL_420_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_420_2024","url":null,"abstract":"<p><p>Background Syphilis has shown a recent resurgence globally, including in India. However, inconsistency in the data and diagnostic criteria used, especially in India and developing countries, hinders ideal understanding. Factors responsible for this surge need to be explored. Objectives This study aimed to assess the trends and describe the clinicodemographic characteristics of syphilis cases seen in a tertiary care health centre from Northern India. Methods This is a retrospective chart review of syphilis patients registered in our sexually transmitted infection (STI) clinic spanning 13 years from January 2011 to December 2023. Complete demographic details, sexual history, clinical examination and laboratory investigations of all syphilis cases, including associated STIs, were retrieved. Results The retrospective analysis included 2000 records, of which 324 were confirmed syphilis cases (16.2% of total STI cases). Patients' mean age was 30.9 ± 9.9 years, of which 80.9% were male and 64.2% were married. Education level varied, with professionals comprising 22.2% of the total cohort. Premarital and extramarital exposure were present in 35.8% and 32.7% patients, respectively; over half (56.8%) reported multiple partners and 13% were homosexual. There was an initial plateau in the number of confirmed syphilis attending the clinic (2011-2019), a decrease during 2020-2021 due to COVID and significant increase from 2022 onwards. Latent syphilis was the most common (66.7%), followed by secondary (18.8%) and primary (8.9%). In all, 36.1% of syphilis patients had associated STIs, with human immunodeficiency virus (HIV) infection being the most prevalent (25.0%). Limitation Retrospective nature of the study is major limitation. Rising trend needs validation with population-based studies to establish if the rise is true or a shadow phenomenon. Conclusion A resurgence of syphilis cases has appeared in the past two years, with latent syphilis contributing to the majority of cases. Possible factors for the surge include changing sexual behaviour, including male having sex with male (MSM), early adolescent sexual exposure, increased screening for latent syphilis, increased healthcare accessibility post-COVID-19 pandemic, and HIV co-infection.</p>","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-7"},"PeriodicalIF":3.2,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143256477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thammannagowda Prarthana, Hitaishi Mehta, Uma Nahar Saikia, Keshavamurthy Vinay
{"title":"Patterned cicatricial alopecia in two sisters with lamellar ichthyosis.","authors":"Thammannagowda Prarthana, Hitaishi Mehta, Uma Nahar Saikia, Keshavamurthy Vinay","doi":"10.25259/IJDVL_1067_2024","DOIUrl":"https://doi.org/10.25259/IJDVL_1067_2024","url":null,"abstract":"","PeriodicalId":50376,"journal":{"name":"Indian Journal of Dermatology Venereology & Leprology","volume":" ","pages":"1-3"},"PeriodicalIF":3.2,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143257295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}