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Chromy D, Sadoghi B, Gasslitter I, Skocic M, Okoro A, Grabmeier-Pfistershammer K, Willinger B, Weninger W, Öllinger A, Sarcletti M, Stary G, Bauer WM. Lymphogranuloma venereum verläuft häufig asymptomatisch bei Männern, die Sex mit Männern haben, in Österreich. J Dtsch Dermatol Ges 2024; 22:389-398. [PMID: 38450885 DOI: 10.1111/ddg.15329_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/14/2023] [Indexed: 03/08/2024]
Abstract
ZusammenfassungHintergrund und ZieleLymphogranuloma venereum (LGV) ist eine sexuell übertragene Erkrankung verursacht durch Chlamydia trachomatis (CT), Serovar L1–L3. Eine Zunahme von LGV ist vorwiegend bei Männern, die Sex mit Männern haben (MSM), beobachtet worden. Die Unterscheidung zwischen LGV und Nicht‐LGV‐Serovaren hat therapeutische Konsequenzen, daher wurden Prävalenz und Charakteristika von LGV innerhalb aller CT‐Infektionen untersucht.Patienten und MethodikAlle CT‐positiven Befunde, erhoben an den vier größten österreichischen HIV‐ und STI‐Kliniken von 04/2014–12/2021, wurden hinsichtlich Charakteristika der Erkrankung und Demographie der Patienten ausgewertet.ErgebnisseInsgesamt wurden n = 2083 CT‐Infektionen bei n = 1479 Personen dokumentiert. Das mediane Alter betrug 31,4 Jahre, 81% waren männlich, 59% MSM, 44% HIV‐positiv, 13% nutzten HIV‐Prä‐Expositionsprophylaxe. Serovaranalysen waren bei 61% (1258/2083) verfügbar, wobei L1–L3 in 15% (192/1258) aller Fälle nachgewiesen wurde. Bei MSM mit rektaler CT‐Infektion waren 23% (101/439) LGV. LGV‐Fälle verglichen mit CT‐Infektionen traten vermehrt bei MSM (92% [177/192] vs. 62% [1179/1891], p < 0,001), HIV‐Positivität (64% [116/180] vs. 46% [631/1376]; p < 0,001) und konkomitanter Syphilisinfektion (18% [32/180] vs. 7% [52/749]; p < 0,001) auf. LGV‐Infektionen verliefen zumeist asymptomatisch (45% [87/192]), gefolgt von Proktitis (38% [72/192]).SchlussfolgerungenLymphogranuloma venereum machte 23% der rektalen CT‐Infektionen bei MSM aus und 45% aller LGV‐Fälle waren asymptomatisch. Bei fehlender CT‐Serovar‐Analyse sollte in Risikopopulationen eine erhöhte LGV‐Prävalenz in Betracht gezogen und bei der empirischen Therapiedauer berücksichtigt werden.
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Affiliation(s)
- David Chromy
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | - Birgit Sadoghi
- Universitätsklinik für Dermatologie, Venerologie, Medizinische Universität Graz, Graz, Österreich
| | - Irina Gasslitter
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Mattias Skocic
- Universitätsklinik für Dermatologie und Venerologie, Kepler Universitätsklinikum, Linz, Österreich
| | - Anthony Okoro
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | | | - Birgit Willinger
- Abteilung für Klinische Mikrobiologie, Klinisches Institut für Labormedizin, Medizinische Universität Wien, Wien, Österreich
| | - Wolfgang Weninger
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
| | - Angela Öllinger
- Universitätsklinik für Dermatologie und Venerologie, Kepler Universitätsklinikum, Linz, Österreich
| | - Mario Sarcletti
- Universitätsklinik für Dermatologie, Venerologie und Allergologie, Medizinische Universität Innsbruck, Innsbruck, Österreich
| | - Georg Stary
- Universitätsklinik für Dermatologie, Medizinische Universität Wien, Wien, Österreich
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Chromy D, Sadoghi B, Gasslitter I, Skocic M, Okoro A, Grabmeier-Pfistershammer K, Willinger B, Weninger W, Öllinger A, Sarcletti M, Stary G, Bauer WM. Asymptomatic lymphogranuloma venereum is commonly found among men who have sex with men in Austria. J Dtsch Dermatol Ges 2024; 22:389-397. [PMID: 38308171 DOI: 10.1111/ddg.15329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 11/14/2023] [Indexed: 02/04/2024]
Abstract
BACKGROUND AND OBJECTIVES Serovar L1-L3 of Chlamydia trachomatis (CT) causes lymphogranuloma venereum (LGV). A surge in LGV-cases has been observed among HIV-positive men who have sex with men (MSM). Discrimination between LGV and non-LGV is pivotal since it has major treatment implications. Here, we aimed to determine the prevalence and characteristics of LGV among CT-infections. PATIENTS AND METHODS All CT-positive results from 04/2014-12/2021 at the four largest Austrian HIV and STI clinics were evaluated. Disease characteristics and patient demographics were analyzed. RESULTS Overall, n = 2,083 infections of CT were documented in n = 1,479 individual patients: median age was 31.4 years, 81% were male, 59% MSM, 44% HIV-positive, 13% on HIV pre-exposure-prophylaxis. Available serovar analyses (61% [1,258/2,083]) showed L1-L3 in 15% (192/1,258). Considering only MSM with rectal CT-infection, LGV accounted for 23% (101/439). Cases of LGV vs. other CT-infections were primarily MSM (92% [177/192] vs. 62% [1,179/1,891], p < 0.001), more often HIV-positive (64% [116/180] vs. 46% [631/1,376]; p < 0.001) and had frequently concomitant syphilis infection (18% [32/180] vs. 7% [52/749]; p < 0.001). LGV commonly manifested as proctitis (38% [72/192]) whereas 45% (87/192) were asymptomatic. CONCLUSIONS Lymphogranuloma venereum accounted for 23% of rectal CT-infections in MSM. Furthermore, 45% of all LGV-cases were asymptomatic. In the absence of CT-serovar analysis, a high LGV prevalence should be considered in risk-populations and guide empiric treatment selection.
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Affiliation(s)
- David Chromy
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Birgit Sadoghi
- Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
| | - Irina Gasslitter
- Dermatology, Venereology and Allergy, Medical University of Innsbruck, Innsbruck, Austria
| | - Mattias Skocic
- Department of Dermatology, Kepler University Hospital Linz, Linz, Austria
| | - Anthony Okoro
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | - Birgit Willinger
- Division of Clinical Microbiology, Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Angela Öllinger
- Department of Dermatology, Kepler University Hospital Linz, Linz, Austria
| | - Mario Sarcletti
- Dermatology, Venereology and Allergy, Medical University of Innsbruck, Innsbruck, Austria
| | - Georg Stary
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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He X, Madhav S, Hutchinson L, Meng X, Fischer A, Dresser K, Yang M. Prevalence of Chlamydia infection detected by immunohistochemistry in patients with anorectal ulcer and granulation tissue. Hum Pathol 2024; 144:8-14. [PMID: 38159868 DOI: 10.1016/j.humpath.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Anorectal ulcer with granulation tissue is typically associated with left-sided inflammatory bowel disease or infection. Due to emerging cases of Chlamydia proctitis, we aim to investigate the prevalence of Chlamydia infection using immunohistochemistry (IHC) in anorectal biopsies showing ulcer and granulation tissue. Seventy-seven patients including 60 males and 17 females with mean age of 51 years old were retrospectively identified in surgical pathology archives. Chlamydia IHC was validated with a monoclonal antibody on an index who was positive for Chlamydia by rectal swab nucleic acid amplification test (NAAT), then performed on formalin fixed and paraffin embedded (FFPE) tissue sections. Confirmative molecular test using real-time PCR was performed on DNA extractions of 14 IHC-positive and 14 IHC-negative FFPEs, 18 NAAT-positive, and 5 NAAT-negative cytology specimens. Chlamydia IHC showed strong intracytoplasmic or extracellular sphere morphology in 14 of 77 (18.2 %) FFPEs, including 11 of 60 (18.3 %) males and 3 of 17 (17.6 %) females (age 11-84 years). Eight of 14 (57.1 %) Chlamydia-IHC positive patients had known history of STDs, high-risk behavior, or immunosuppressive conditions. One of 14 (7.1 %) IHC-positive FFEP and 15 of 18 (83.3 %) NAAT-positive cytology cases were confirmed by real-time PCR. Chlamydia inclusions were detected in all 4 randomly selected NAAT and PCR-positive cytology specimens by IHC. Our data suggested that Chlamydia infection is more prevalent than we thought in patients with active proctitis and ulceration. Chlamydia IHC may be performed as a screening test in biopsies to facilitate early detection of this treatable proctitis in high-risk population.
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Affiliation(s)
- Xin He
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Sindha Madhav
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Lloyd Hutchinson
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Xiuling Meng
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Andrew Fischer
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Karen Dresser
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA
| | - Michelle Yang
- Department of Pathology, University of Massachusetts Memorial Health Care, Worcester, MA, 01605, USA.
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Ball LM, Bronstein E, Liechti GW, Maurelli AT. Neisseria gonorrhoeae drives Chlamydia trachomatis into a persistence-like state during in vitro co-infection. Infect Immun 2024; 92:e0017923. [PMID: 38014981 PMCID: PMC10790821 DOI: 10.1128/iai.00179-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/05/2023] [Indexed: 11/29/2023] Open
Abstract
Chlamydia trachomatis and Neisseria gonorrhoeae are the most prevalent bacterial sexually transmitted infections (STIs) globally. Despite frequent co-infections in patients, few studies have investigated how mono-infections may differ from co-infections. We hypothesized that a symbiotic relationship between the pathogens could account for the high rates of clinical co-infection. During in vitro co-infection, we observed an unexpected phenotype where the C. trachomatis developmental cycle was impaired by N. gonorrhoeae. C. trachomatis is an obligate intracellular pathogen with a unique biphasic developmental cycle progressing from infectious elementary bodies (EB) to replicative reticulate bodies (RB), and back. After 12 hours of co-infection, we observed fewer EBs than in a mono-infection. Chlamydial genome copy number remained equivalent between mono- and co-infections. This is a hallmark of Chlamydial persistence. Chlamydial persistence alters inclusion morphology but varies depending on the stimulus/stress. We observed larger, but fewer, Chlamydia during co-infection. Tryptophan depletion can induce Chlamydial persistence, but tryptophan supplementation did not reverse the co-infection phenotype. Only viable and actively growing N. gonorrhoeae produced the inhibition phenotype in C. trachomatis. Piliated N. gonorrhoeae had the strongest effect on C. trachomatis, but hyperpiliated or non-piliated N. gonorrhoeae still produced the phenotype. EB development was modestly impaired when N. gonorrhoeae were grown in transwells above the infected monolayer. C. trachomatis serovar L2 was not impaired during co-infection. Chlamydial impairment could be due to cytoskeletal or osmotic stress caused by an as-yet-undefined mechanism. We conclude that N. gonorrhoeae induces a persistence-like state in C. trachomatis that is serovar dependent.
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Affiliation(s)
- Louise M. Ball
- Emerging Pathogens Institute and Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
| | - Ellis Bronstein
- F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - George W. Liechti
- Department of Microbiology and Immunology, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, Maryland, USA
| | - Anthony T. Maurelli
- Emerging Pathogens Institute and Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
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Hirsch RD, Tambakis G, Shelton E. Getting to the bottom of persistent proctitis. Intern Med J 2022; 52:895-896. [PMID: 35538017 DOI: 10.1111/imj.15785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/05/2022] [Accepted: 03/17/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan D Hirsch
- Gastroenterology Unit, Monash Health, Melbourne, Victoria, Australia
| | - George Tambakis
- Gastroenterology Unit, Monash Health, Melbourne, Victoria, Australia
| | - Edward Shelton
- Gastroenterology Unit, Monash Health, Melbourne, Victoria, Australia
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Affiliation(s)
- Edward Weiss
- Immunodeficiency Clinic, Department of Medicine, University Health Network, Toronto, Ont.
| | - Marie Sano
- Immunodeficiency Clinic, Department of Medicine, University Health Network, Toronto, Ont
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Abstract
A 48-year-old man presented as an emergency with a 3-week history of rectal bleeding. Examination of his rectum revealed a circumferential tumour, 2 cm from the anal verge. An MRI scan reported a locally infiltrative mid-lower rectal tumour staged as T3d/T4 N2 MX. A colonoscopy revealed appearances of severe proctitis and biopsies did not show any evidence of dysplasia or malignancy. The patient was discussed at the regional colorectal cancer multidisciplinary team meeting with a management plan for neoadjuvant chemoradiotherapy following repeat biopsies, which were again negative for malignancy. He tested positive for the HIV and was referred to genitourinary medicine. A positive Chlamydia trachomatis nucleic acid test from a rectal swab was serovar L2 consistent with a diagnosis of lymphogranuloma venereum. He was treated with doxycycline and subsequent MRI scans showed reduction in tumour size with eventual resolution. This case report highlights the importance of HIV testing in patients with newly diagnosed colorectal tumours.
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Affiliation(s)
| | - Samantha Muktar
- Epsom and Saint Helier University Hospitals NHS Trust, Carshalton, UK
| | - Dimitrios Pissas
- Epsom and Saint Helier University Hospitals NHS Trust, London, UK
| | - Ceri Slater
- Epsom and Saint Helier University Hospitals NHS Trust, Carshalton, UK
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Garg I, Thoendel MJ, Goenka AH. Lymphogranuloma Venereum Proctitis. Clin Gastroenterol Hepatol 2017; 15:A29-A30. [PMID: 28365488 DOI: 10.1016/j.cgh.2017.03.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/23/2017] [Accepted: 03/24/2017] [Indexed: 02/07/2023]
Affiliation(s)
- Ishan Garg
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Matthew J Thoendel
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Ajit H Goenka
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
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9
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Immunohistochemistry in the diagnosis of cutaneous bacterial infections. Am J Dermatopathol 2015; 37:179-93; quiz 194-6. [PMID: 25699977 DOI: 10.1097/dad.0000000000000227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The identification of pathogens is of vital importance for the adequate treatment of infections. During the past 2 decades, the approach to histopathologic diagnosis has been dramatically transformed by immunohistochemistry (IHC) specifically in the diagnosis and classification of tumors and more recently in the diagnosis of infectious diseases in tissue samples. The main goals of this article were to: (1) identify by IHC the cutaneous structures where bacterial pathogens are expressed in the course of infection, (2) identify the specific cells in which bacterial pathogens are expressed in positive cases, and (3) describe the pattern of distribution of the bacterial antigens within these cells (nuclear, cytoplasmatic, or membranous). This article is an up-to-date overview of the potential uses and limitations of IHC in the histopathologic diagnosis of cutaneous bacterial infections. In conclusion, IHC is especially useful in the identification of microorganisms that are present in low numbers, stain poorly, are fastidious to grow, culture is not possible, or exhibit an atypical morphology.
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Nunes A, Gomes JP. Evolution, phylogeny, and molecular epidemiology of Chlamydia. INFECTION GENETICS AND EVOLUTION 2014; 23:49-64. [PMID: 24509351 DOI: 10.1016/j.meegid.2014.01.029] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 01/16/2014] [Accepted: 01/19/2014] [Indexed: 10/25/2022]
Abstract
The Chlamydiaceae are a family of obligate intracellular bacteria characterized by a unique biphasic developmental cycle. It encompasses the single genus Chlamydia, which involves nine species that affect a wide range of vertebral hosts, causing infections with serious impact on human health (mainly due to Chlamydia trachomatis infections) and on farming and veterinary industries. It is believed that Chlamydiales originated ∼700mya, whereas C. trachomatis likely split from the other Chlamydiaceae during the last 6mya. This corresponds to the emergence of modern human lineages, with the first descriptions of chlamydial infections as ancient as four millennia. Chlamydiaceae have undergone a massive genome reduction, on behalf of the deletional bias "use it or lose it", stabilizing at 1-1.2Mb and keeping a striking genome synteny. Their phylogeny reveals species segregation according to biological properties, with huge differences in terms of host range, tissue tropism, and disease outcomes. Genome differences rely on the occurrence of mutations in the >700 orthologous genes, as well as on events of recombination, gene loss, inversion, and paralogous expansion, affecting both a hypervariable region named the plasticity zone, and genes essentially encoding polymorphic and transmembrane head membrane proteins, type III secretion effectors and some metabolic pathways. Procedures for molecular typing are still not consensual but have allowed the knowledge of molecular epidemiology patterns for some species as well as the identification of outbreaks and emergence of successful clones for C. trachomatis. This manuscript intends to provide a comprehensive review on the evolution, phylogeny, and molecular epidemiology of Chlamydia.
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Affiliation(s)
- Alexandra Nunes
- Reference Laboratory of Bacterial Sexually Transmitted Infections and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health, Av. Padre Cruz, 1649-016 Lisbon, Portugal
| | - João P Gomes
- Reference Laboratory of Bacterial Sexually Transmitted Infections and Bioinformatics Unit, Department of Infectious Diseases, National Institute of Health, Av. Padre Cruz, 1649-016 Lisbon, Portugal.
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Yang CJ, Li SY, Chang SY, Wu PY, Liao MH, Liu WC, Wu H, Wu CH, Sun HY, Hung CC. Associated factors with and genotypes of Chlamydia trachomatis infection among clients seeking voluntary counseling and testing for HIV infection in Taiwan. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2013; 47:526-32. [PMID: 24387885 DOI: 10.1016/j.jmii.2013.10.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 08/20/2013] [Accepted: 09/16/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND/PURPOSE This study aimed to investigate the factors associated with Chlamydia trachomatis infection and the genotype distribution of the strains among the clients seeking voluntary counseling and testing (VCT) for human immunodeficiency virus (HIV) in Taiwan. METHODS The VCT clients completed an anonymous self-administered questionnaire interview to inquire into the risks for sexually transmitted diseases, followed by providing a 10-mL first-catch urine specimen to detect C. trachomatis with the use of polymerase-chain-reaction assays. The genotyping of C. trachomatis strains was performed by sequencing of omp1 gene. A case-control study was performed to identify factors associated with chlamydial infection. RESULTS From 2008 to 2011, 140 (4.2%) of the 3323 VCT clients tested positive for C. trachomatis by polymerase chain reaction assays of urine specimens. Compared with 280 control individuals without C. trachomatis infection, cases were more likely to be female (adjusted odds ratio, 3.28; 95% confidence interval, 1.56-6.90) and to report dysuria or urethral discharge (adjusted odds ratio, 2.57; 95% confidence interval, 1.44-4.61). Infections with genotypes Da and G were significantly more common in male than female individuals (genotype Da, 22.2% vs. 0%; and genotype G, 24.4% vs. 3.3%) and in men who have sex with men than heterosexuals (genotype Da, 22.2% vs. 0%; and genotype G, 24.4% vs. 3.3%). CONCLUSION Among the VCT clients in Taiwan, female sex and presence of urethral symptoms were associated with C. trachomatis infection of the genitourinary tract. Homosexual male clients were more likely to be infected with genotypes Da and G than heterosexual clients were.
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Affiliation(s)
- Chia-Jui Yang
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Oriental Institute of Technology, New Taipei City, Taiwan
| | - Shu-Ying Li
- Research and Diagnostic Center, Centers for Disease Control, Department of Health, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pei-Ying Wu
- Center for Infection Control, National Taiwan University Hospital, Taipei, Taiwan
| | - Mei-Huei Liao
- Research and Diagnostic Center, Centers for Disease Control, Department of Health, Taipei, Taiwan
| | - Wen-Chun Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsiu Wu
- Field Epidemiology Training Program, Centers for Disease Control, Department of Health, Taipei, Taiwan
| | - Cheng-Hsin Wu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-Yun Sun
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan; China Medical University, Taichung, Taiwan.
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Meštrović T, Ljubin-Sternak S, Sviben M. Potential role of enterohepatic Helicobacter species as a facilitating factor in the development of Chlamydia trachomatis proctitis. Med Hypotheses 2013; 81:481-3. [DOI: 10.1016/j.mehy.2013.06.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 06/18/2013] [Indexed: 12/18/2022]
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Turner AN, Reese PC, Ervin M, Davis JA, Fields KS, Bazan JA. HIV, rectal chlamydia, and rectal gonorrhea in men who have sex with men attending a sexually transmitted disease clinic in a midwestern US city. Sex Transm Dis 2013; 40:433-8. [PMID: 23677015 PMCID: PMC3815564 DOI: 10.1097/olq.0b013e31828fd163] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Men who have sex with men (MSM) who report receptive anal intercourse (RAI) are currently recommended to undergo at least annual screening for rectal Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) infection. METHODS Using standard culture methods, we assessed the prevalence of rectal GC/CT among MSM who reported RAI in the last year (n = 326) at an urban sexually transmitted disease (STD) clinic in a midwestern US city. A subset (n = 125) also underwent rectal GC/CT screening via nucleic acid amplification testing. We examined the associations between HIV status and prevalence of rectal GC and rectal CT using unadjusted and adjusted logistic regression models. RESULTS The prevalence of rectal GC, rectal CT, and either rectal infection was 9%, 9%, and 15% by culture and 24%, 23%, and 38% by nucleic acid amplification testing, respectively. HIV was not associated with rectal GC prevalence in unadjusted or adjusted analyses. HIV-positive status was significantly associated with increased rectal CT prevalence in unadjusted models (odds ratio, 2.18; 95% confidence interval, 1.04-4.60); this association increased after multivariable adjustment (odds ratio, 3.14; 95% confidence interval, 1.37-7.19). CONCLUSIONS Men who have sex with men reporting RAI had a high prevalence of rectal GC and rectal CT. HIV-positive status was significantly associated with prevalent rectal CT but not with prevalent rectal GC.
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Affiliation(s)
- Abigail Norris Turner
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Ohio State University, OH 43210, USA.
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Cytomegalovirus proctitis: a rare and disregarded sexually transmitted disease. Sex Transm Dis 2013; 38:876-8. [PMID: 21844745 DOI: 10.1097/olq.0b013e31821a5a90] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A review of published cases and a recently managed patient is presented, which describes the clinical features of cytomegalovirus proctitis. About half of the reports describe sexually transmitted cytomegalovirus proctitis following anal intercourse, which typically presents with rectal bleeding and a mononucleosis-like syndrome. This condition resolves spontaneously and may be associated with human immunodeficiency virus infection.
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Gesink DC, Sullivan AB, Norwood TA, Serre ML, Miller WC. Does core area theory apply to sexually transmitted diseases in rural environments? Sex Transm Dis 2013; 40:32-40. [PMID: 23254115 PMCID: PMC3528791 DOI: 10.1097/olq.0b013e3182762524] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Our objective was to determine the extent to which geographical core areas for gonorrhea and syphilis are located in rural areas as compared with urban areas. METHODS Incident gonorrhea (January 1, 2005-December 31, 2010) and syphilis (January 1, 1999-December 31, 2010) rates were estimated and mapped by census tract and quarter. Rurality was measured using percent rural and rural-urban commuting area (rural, small town, micropolitan, or urban). SaTScan was used to identify spatiotemporal clusters of significantly elevated rates of infection. Clusters lasting 5 years or longer were considered core areas; clusters of shorter duration were considered outbreaks. Clusters were overlaid on maps of rurality and qualitatively assessed for correlation. RESULTS Twenty gonorrhea core areas were identified: 65% were in urban centers, 25% were in micropolitan areas, and the remaining 10% were geographically large capturing combinations of urban, micropolitan, small town, and rural environments. Ten syphilis core areas were identified with 80% in urban centers and 20% capturing 2 or more rural-urban commuting areas. All 10 (100%) of the syphilis core areas overlapped with gonorrhea core areas. CONCLUSIONS Gonorrhea and syphilis rates were high for rural parts of North Carolina; however, no core areas were identified exclusively for small towns or rural areas. The main pathway of rural sexually transmitted disease (STI) transmission may be through the interconnectedness of urban, micropolitan, small town, and rural areas. Directly addressing STIs in urban and micropolitan communities may also indirectly help address STI rates in rural and small town communities.
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Affiliation(s)
- Dionne C Gesink
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
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Joseph SJ, Didelot X, Rothschild J, de Vries HJC, Morré SA, Read TD, Dean D. Population genomics of Chlamydia trachomatis: insights on drift, selection, recombination, and population structure. Mol Biol Evol 2012; 29:3933-46. [PMID: 22891032 DOI: 10.1093/molbev/mss198] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The large number of sexually transmitted diseases and ocular trachoma cases that are caused globally each year by Chlamydia trachomatis has made this organism a World Health Organization priority for vaccine development. However, there is no gene transfer system for Chlamydia to help identify potential vaccine targets. To accelerate discoveries toward this goal, here we analyzed the broadest diversity of C. trachomatis genomes to date, including 25 geographically dispersed clinical and seven reference strains representing 14 of the 19 known serotypes. Strikingly, all 32 genomes were found to have evidence of DNA acquisition by homologous recombination in their history. Four distinct clades were identified, which correspond to all C. trachomatis disease phenotypes: lymphogranuloma venereum (LGV; Clade 1); noninvasive urogenital infections (Clade 2); ocular trachoma (Clade 3); and protocolitis (Clade 4; also includes some noninvasive urogenital infections). Although the ancestral relationship between clades varied, most strains acted as donor and recipient of recombination with no evidence for barriers to genetic exchange. The niche-specific LGV and trachoma clades have undergone less recombination, although the opportunity for mixing with strains from other clades that infect the rectal and ocular mucosa, respectively, is evident. Furthermore, there are numerous occasions for gene conversion events through sequential infections at the same anatomic sites. The size of recombinant segments is relatively small (~357 bp) compared with in vitro experiments of various C. trachomatis strains but is consistent with in vitro estimates for other bacterial species including Escherichia coli and Helicobacter pylori. Selection has also played a crucial role during the diversification of the organism. Clade 2 had the lowest nonsynonymous to synonymous ratio (dN/dS) but the highest effect of recombination, which is consistent with the widespread occurrence of synonymous substitutions in recombined genomic segments. The trachoma Clade 3 had the highest dN/dS estimates, which may be caused by an increased effect of genetic drift from niche specialization and a reduced effective population size. The degree of drift, selection, and recombination in C. trachomatis suggests that the challenge will remain to identify genomic regions that are stable and cross protective for the development of an efficacious vaccine.
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Affiliation(s)
- Sandeep J Joseph
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine, USA
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Broadbent A, Horner P, Wills G, Ling A, Carzaniga R, McClure M. HIV-1 does not significantly influence Chlamydia trachomatis serovar L2 replication in vitro. Microbes Infect 2011; 13:575-84. [PMID: 21315827 DOI: 10.1016/j.micinf.2011.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 01/24/2011] [Accepted: 01/25/2011] [Indexed: 02/08/2023]
Abstract
Individuals with lymphogranuloma venereum (LGV), caused by Chlamydia trachomatis serovar L2, are commonly co-infected with human immunodeficiency virus type 1 (HIV-1), for reasons that remain unknown. One hypothesis is that a biological synergy exists between the two pathogens. We tested this by characterising for the first time in vitro C. trachomatis L2 replication in the presence of HIV-1. The human epithelial cell-line, MAGI P4R5 was infected with C. trachomatis L2 and HIV-1 (MN strain). Co-infected cultures contained fewer and larger chlamydial inclusions, but the inclusions did not contain morphologically aberrant organisms. C. trachomatis remained infectious in the presence of HIV-1 and showed neither an alteration in genome accumulation, nor in the acumulation of ompA, euo or unprocessed 16S rRNA transcripts. However, omcB was slightly elevated. Taken together, these data indicate that HIV-1 co-infection did not significantly alter C. trachomatis replication and the association between HIV-1 and LGV is likely due to other factors that require further investigation. The fewer, larger inclusions observed in co-infected cultures probably result from the fusion of multiple inclusions in HIV-1 induced syncytia and indicate that C. trachomatis-host-cell interactions continue to function, despite considerable host-cell re-modelling.
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Affiliation(s)
- Andrew Broadbent
- Section of Infectious Diseases, Jefferiss Research Trust Laboratories, Wright-Fleming Institute, Faculty of Medicine, Imperial College London, St Mary's Campus, Norfolk Place, W2 1PG London, UK.
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Flexor G, Clarissou J, Gaillet M, de Barbeyrac B, Perronne C, de Truchis P. Lymphogranulomatose vénérienne génitale chez un patient infecté par le VIH-1. Ann Dermatol Venereol 2010; 137:117-20. [DOI: 10.1016/j.annder.2009.11.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Accepted: 05/29/2009] [Indexed: 11/15/2022]
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Davis TW, Goldstone SE. Sexually transmitted infections as a cause of proctitis in men who have sex with men. Dis Colon Rectum 2009; 52:507-12. [PMID: 19333054 DOI: 10.1007/dcr.0b013e31819ad537] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE Many men who have sex with men (MSM) present with complaints of bleeding, pain, and inflammation. We endeavored to determine the incidence of sexually transmitted infections in MSM referred for treatment of these symptoms and the effect of empiric therapy. METHODS A retrospective chart review of all MSM seen in 2007 at one surgical practice diagnosed with presumptive proctitis was performed. All MSM are routinely tested for sexually transmitted infections. RESULTS Twenty-six MSM were identified (mean age, 38 years), and 17 (65 percent) were HIV+. Bleeding and pain were the most common complaints seen in 19 (73 percent) and 16 (62 percent), respectively. The most common findings were discharge in 15 (58 percent) and blood in 14 (54 percent). Sexually transmitted infections were identified in 21 (86 percent) and 3 (11 percent) had unidentified etiology. Gonorrhea was found in eight (43 percent), herpes simplex virus in six (29 percent), lymphogranuloma venereum in four (19 percent), and two each (10 percent) had Chlamydia and syphilis. Three had multiple infections. All but two treated empirically responded without complication and they had Crohn's colitis (n = 1) and rectal lymphoma (n = 1). CONCLUSIONS Sexually transmitted infections are a common cause of proctitis and appropriate testing is imperative. Lymphogranuloma venereum is a common cause. Empiric treatment leads to rapid resolution and diminishes the chance for spread.
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Affiliation(s)
- Tony W Davis
- Department of Surgery, Mount Sinai School of Medicine, New York, New York, USA
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Vall-Mayans M, Caballero E. Linfogranuloma venéreo: una causa emergente de proctitis en hombres homosexuales en Barcelona. Rev Clin Esp 2009; 209:78-81. [DOI: 10.1016/s0014-2565(09)70630-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Alexander S, Martin IMC, Ison C. A comparison of two methods for the diagnosis of lymphogranuloma venereum. J Med Microbiol 2008; 57:962-965. [PMID: 18628496 DOI: 10.1099/jmm.0.2008/000562-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A recent outbreak of lymphogranuloma venereum (LGV) within the men who have sex with men (MSM) community and their requirement for extended therapy has highlighted the need for laboratory tests that differentiate LGV- from non-LGV-associated serovars of Chlamydia trachomatis. Two previously described methods were evaluated against 495 clinical specimens referred to the Sexually Transmitted Bacteria Reference Laboratory (London, UK): (i) PCR amplification of a 1.1 kb region of the ompI gene followed by restriction enzyme digestion (ompI RFLP-PCR); and (ii) real-time PCR targeting a 36 bp deletion present within the polymorphic membrane protein H gene of LGV-associated serovars (pmpH real-time PCR). For specimens that could be categorized using both methods, a 94.7 % (390/412) concordance was achieved. Eighty-three specimens were found to be untypeable by ompI RFLP-PCR due to a failure to amplify the 1.1 kb fragment. Of these 83 untypeable specimens, 19 were determined to be an LGV-associated serovar by pmpH real-time PCR. Despite the high level of concordance, there were differences found in the technical complexity of the two methods. The pmpH real-time PCR exhibited greater sensitivity, a more rapid turnaround time and a lower technical requirement. Whilst the ompI RFLP-PCR was not as robust as a laboratory diagnostic method, it did enable serovar-level identification. LGV infection remains an important threat to the health of high-risk MSM in Europe. In conclusion, the two methods for the detection of LGV from clinical samples were found not only to have a high concordance (94.7 %) but also to be complementary, and could be used in an integrated way to aid LGV detection.
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Affiliation(s)
- Sarah Alexander
- Sexually Transmitted Bacteria Reference Laboratory, Health Protection Agency, Centre for Infections, 61 Colindale Ave, London NW9 5HT, UK
| | - Iona M C Martin
- Sexually Transmitted Bacteria Reference Laboratory, Health Protection Agency, Centre for Infections, 61 Colindale Ave, London NW9 5HT, UK
| | - Catherine Ison
- Sexually Transmitted Bacteria Reference Laboratory, Health Protection Agency, Centre for Infections, 61 Colindale Ave, London NW9 5HT, UK
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Fistula-associated anal adenocarcinoma: good results with aggressive therapy. Dis Colon Rectum 2008; 51:1061-7. [PMID: 18418652 DOI: 10.1007/s10350-008-9294-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Revised: 01/21/2008] [Accepted: 02/09/2008] [Indexed: 02/08/2023]
Abstract
PURPOSE To evaluate the clinical features, pathology, treatment, and outcome of patients with fistula-associated anal adenocarcinoma. METHODS We identified 14 patients with histologically proven fistula-associated anal adenocarcinoma. We reviewed their medical records and pathology specimens to characterize their presentation, treatment, and clinical outcome. RESULTS Nine patients presented with a persistent fistula, 3 with a perianal mass, 1 with pain and drainage, and 1 with a recurrent perianal abscess. The average age at time of diagnosis was 59 (range, 37-76) years. Eleven patients had preexisting chronic anal fistulas. Ten had Crohn's disease, and 1 had previously received pelvic radiation therapy. The diagnosis of cancer was suspected during physical examination in 6 of the 14 patients (43 percent). Twelve patients had extensive local disease at presentation. Primary abdominoperineal resection was performed in 11 patients, 7 following neoadjuvant chemoradiation. Six patients received postoperative chemotherapy, and 2 received postoperative radiation. Four patients died with metastatic disease. The remaining 10 patients are alive without evidence of disease at a mean follow-up of 64.3 (range, 14-149) months. CONCLUSIONS The diagnosis of fistula-associated anal adenocarcinoma is often unsuspected. Most patients can be cured with aggressive surgical and adjuvant chemoradiotherapy.
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Robertson A, Azariah S, Bromhead C, Tabrizi S, Blackmore T. Case report: lymphogranuloma venereum in New Zealand. Sex Health 2008; 5:369-70. [DOI: 10.1071/sh08071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2008] [Accepted: 10/03/2008] [Indexed: 11/23/2022]
Abstract
We report New Zealand’s first two cases of anorectal lymphogranuloma venereum (LGV). Although infection in these cases was probably acquired off-shore, the cases are reported to demonstrate the need to be vigilant to the possibility of LGV when men who have sex with men present with symptoms of proctitis. Investigation and management of LGV is discussed.
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