keyword
MENU ▼
Read by QxMD icon Read
search

trachoma

keyword
https://www.readbyqxmd.com/read/28228394/update-in-chlamydia-trachomatis-vaccinology
#1
Luis M de la Maza, Guangming Zhong, Robert C Brunham
Attempts to produce a vaccine to protect against Chlamydia trachomatis (C. trachomatis) induced trachoma were initiated more than 100 years ago and continued for several decades. Using whole organisms protective responses were obtained. However, upon exposure to C. trachomatis, disease exacerbation developed in some immunized individuals precluding the implementation of the vaccine. Evidence of the role of C. trachomatis as a sexually transmitted pathogen started to emerge in the 1960's and soon became evident that it can cause acute infections and long term-sequelae in women, men and newborns...
February 22, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28214223/evaluation-of-a-field-test-for-antibodies-against-chlamydia-trachomatis-during-trachoma-surveillance-in-nepal
#2
Michelle J Sun, Andrea I Zambrano, Laura Dize, Beatriz Munoz, Sarah Gwyn, Sailesh Mishra, Diana L Martin, Shekhar Sharma, Sheila K West
PURPOSE: Testing for antibodies to Chlamydia trachomatis has potential as a surveillance tool. Our evaluation compares lateral flow assays (LFAs) during surveillance surveys in Nepal with Multiplex bead array (MBA). Fifty children were randomly sampled from each of 15 random clusters in two districts of Nepal. Finger prick blood samples were collected from 1509 children and tested onsite for anti-Pgp3 antibodies by LFA. The LFA was read at 30min as negative, positive, or invalid. Tests results were also rated as difficult to read ("equivocal")...
January 17, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28187129/podoconiosis-trachomatous-trichiasis-and-cataract-in-northern-ethiopia-a-comparative-cross-sectional-study
#3
Helen Burn, Sintayehu Aweke, Tariku Wondie, Esmael Habtamu, Kebede Deribe, Saul Rajak, Stephen Bremner, Gail Davey
BACKGROUND: Rural populations in low-income countries commonly suffer from the co-morbidity of neglected tropical diseases (NTDs). Podoconiosis, trachomatous trichiasis (both NTDs) and cataract are common causes of morbidity among subsistence farmers in the highlands of northern Ethiopia. We explored whether podoconiosis was associated with cataract or trachomatous trichiasis (TT) among this population. METHODS: A comparative cross-sectional study was conducted in East Gojam region, Amhara, Ethiopia in May 2016...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28182664/improving-our-forecasts-for-trachoma-elimination-what-else-do-we-need-to-know
#4
Amy Pinsent, Manoj Gambhir
The World Health Organization (WHO) has targeted trachoma for elimination as a public health concern by 2020. Mathematical modelling is used for a range of infectious diseases to assess the impact of different intervention strategies on the prevalence of infection or disease. Here we evaluate the performance of four different mechanistic mathematical models that could all realistically represent trachoma transmission. We fit the four different mechanistic models of trachoma transmission to cross-sectional age-specific Polymerase Chain Reaction (PCR) and Trachomatous inflammation, follicular (TF) prevalence data...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28161923/preventing-long-term-ocular-complications-of-trachoma-with-topical-azithromycin-a-3-year-follow-up-study
#5
Tayyab Afghani, Hassan Mansoor, Mohammad Nadeem
PURPOSE: To determine the role of a single cycle of topical azithromycin in preventing long-term trachoma complications in children from an area with endemic trachoma. DESIGN: A longitudinal cohort study. METHODS: Two hundred thirty-eight (n = 238) children with active trachoma were enrolled in the current study. They were aged 1 to 10 years, with trachomatous inflammation based on the simplified World Health Organization grading system. These children were identified out of a survey of 8600 children from 7 villages in Punjab, Pakistan, where trachoma was endemic...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28118354/integrated-mapping-of-yaws-and-trachoma-in-the-five-northern-most-provinces-of-vanuatu
#6
Fasihah Taleo, Colin K Macleod, Michael Marks, Oliver Sokana, Anna Last, Rebecca Willis, Mackline Garae, Annie Bong, Brian K Chu, Paul Courtright, Jacob Kool, George Taleo, Jean Jacque Rory, Anthony W Solomon
Yaws and trachoma are targeted for eradication and elimination as public health problems. In trachoma-endemic populations mass administration of azithromycin can simultaneously treat yaws. We conducted a population-based prevalence survey in the five northernmost provinces of Vanuatu, where trachoma and yaws are suspected to be co-endemic. Clinical signs of trachoma were evaluated using the WHO simplified grading system, and skin examination with a serological rapid diagnostic test used to identify yaws. We enrolled 1004 households in 59 villages over 16 islands, and examined 3650 individuals of all ages for trachoma...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28114364/eyelash-epilation-in-the-absence-of-trichiasis-results-of-a-population-based-prevalence-survey-in-the-western-division-of-fiji
#7
Colin Macleod, Chelsea Yalen, Robert Butcher, Umesh Mudaliar, Kinisimere Natutusau, Mere Rainima-Qaniuci, Chris Haffenden, Conall Watson, Naomi Cocks, Luisa Cikamatana, Chrissy H Roberts, Michael Marks, Eric Rafai, David C W Mabey, Mike Kama, Anthony W Solomon
BACKGROUND: The WHO definition of trachomatous trichiasis (TT) is "at least one eyelash touching the globe, or evidence of recent epilation of in-turned eyelashes", reflecting the fact that epilation is used as a self-management tool for TT. In Fiji's Western Division, a high TT prevalence (8.7% in those aged ≥15 years) was reported in a 2012 survey, yet a 2013 survey found no TT and Fijian ophthalmologists rarely see TT cases. Local anecdote suggests that eyelash epilation is a common behaviour, even in the absence of trichiasis...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28111145/status-of-vaccine-research-and-development-of-vaccines-for-chlamydia-trachomatis-infection
#8
Taylor B Poston, Sami L Gottlieb, Toni Darville
Genital infection with Chlamydia trachomatis, a gram-negative obligate intracellular bacterium, is the most common bacterial sexually transmitted infection globally. Ascension of chlamydial infection to the female upper genital tract can cause acute pelvic inflammatory disease, tubal factor infertility, ectopic pregnancy, and chronic pelvic pain. Shortcomings of current chlamydia control strategies, especially for low- and middle-income countries, highlight the need for an effective vaccine. Evidence from animal models, human epidemiological studies, and early trachoma vaccine trials suggest that a C...
January 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28103243/the-socioeconomic-benefit-to-individuals-of-achieving-the-2020-targets-for-five-preventive-chemotherapy-neglected-tropical-diseases
#9
William K Redekop, Edeltraud J Lenk, Marianne Luyendijk, Christopher Fitzpatrick, Louis Niessen, Wilma A Stolk, Fabrizio Tediosi, Adriana J Rijnsburger, Roel Bakker, Jan A C Hontelez, Jan H Richardus, Julie Jacobson, Sake J de Vlas, Johan L Severens
BACKGROUND: Lymphatic filariasis (LF), onchocerciasis, schistosomiasis, soil-transmitted helminths (STH) and trachoma represent the five most prevalent neglected tropical diseases (NTDs). They can be controlled or eliminated by means of safe and cost-effective interventions delivered through programs of Mass Drug Administration (MDA)-also named Preventive Chemotherapy (PCT). The WHO defined targets for NTD control/elimination by 2020, reinforced by the 2012 London Declaration, which, if achieved, would result in dramatic health gains...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28100460/making-a-song-and-dance-about-trachoma
#10
Richard Hurley
No abstract text is available yet for this article.
January 18, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28099433/defining-seropositivity-thresholds-for-use-in-trachoma-elimination-studies
#11
Stephanie J Migchelsen, Diana L Martin, Khamphoua Southisombath, Patrick Turyaguma, Anne Heggen, Peter Paul Rubangakene, Hassan Joof, Pateh Makalo, Gretchen Cooley, Sarah Gwyn, Anthony W Solomon, Martin J Holland, Paul Courtright, Rebecca Willis, Neal D E Alexander, David C W Mabey, Chrissy H Roberts
BACKGROUND: Efforts are underway to eliminate trachoma as a public health problem by 2020. Programmatic guidelines are based on clinical signs that correlate poorly with Chlamydia trachomatis (Ct) infection in post-treatment and low-endemicity settings. Age-specific seroprevalence of anti Ct Pgp3 antibodies has been proposed as an alternative indicator of the need for intervention. To standardise the use of these tools, it is necessary to develop an analytical approach that performs reproducibly both within and between studies...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28089329/in-morocco-the-elimination-of-trachoma-as-a-public-health-problem-becomes-a-reality
#12
Jaouad Hammou, Houda El Ajaroumi, Hassan Hasbi, Ahmed Nakhlaoui, Abderrahim Hmadna, Abderahmane El Maaroufi
No abstract text is available yet for this article.
January 11, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28065724/epidemiology-of-dry-eye-disease-in-africa-the-sparse-information-gaps-and-opportunities
#13
REVIEW
A E Osae, U Gehlsen, J Horstmann, S Siebelmann, M E Stern, D B Kumah, P Steven
Dry eye disease (DED) is an increasingly significant clinical problem in developing countries and/or emerging economies. Existing studies on DED conducted in these areas have largely reported on associations between DED and infectious disease (trachoma) and malnutrition (hypovitaminosis A), but current trends of industrialization, urbanization, and modernization in these areas could result in a shift to other forms of DED. Herein, we review the epidemiology of DED in these geographic areas, highlighting potential causes and risk factors of DED while presenting information on diagnostic tools and algorithms and insight into some treatment modalities of DED that could prove useful to clinicians and investigators in these regions...
January 5, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28054225/spectrum-and-burden-of-neglected-tropical-diseases-observed-in-an-infectious-and-tropical-diseases-unit-in-florence-italy-2000-2015
#14
Lorenzo Zammarchi, Iacopo Vellere, Leonardo Stella, Filippo Bartalesi, Marianne Strohmeyer, Alessandro Bartoloni
Neglected tropical diseases (NTDs) are a diverse group of acute and chronic conditions with distinct characteristics that thrive mainly among the poorest populations, almost exclusively in tropical countries. To evaluate the relevance and impact of NTDs in a temperate area, the number and features of patients diagnosed with NTDs at the Infectious and Tropical Diseases Unit (ITDU), Azienda Ospedaliero-Universitaria Careggi, Florence, Italy between 2000 and 2015 were retrospectively reviewed. Overall 289 NTD cases were diagnosed in 283 subjects accounting for 2...
January 4, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28052070/identifying-patient-perceived-barriers-to-trichiasis-surgery-in-kongwa-district-tanzania
#15
Ryan J Bickley, Harran Mkocha, Beatriz Munoz, Sheila West
BACKGROUND: Trachomatous trichiasis (TT), inturned eyelashes from repeated infection with Chlamydia trachomatis, is the leading infectious cause of blindness in the world. Though surgery will correct entropion caused by trachoma, uptake of TT surgery remains low. In this case-control study, we identify barriers that prevent TT patients from receiving sight-saving surgery. METHODOLOGY/PRINCIPAL FINDINGS: Participants were selected from a database of TT cases who did (acceptors) and did not (non-acceptors) have surgery as of August 2015...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28030602/structural-and-biochemical-characterization-of-chlamydia-trachomatis-dsba-reveals-a-cysteine-rich-and-weakly-oxidising-oxidoreductase
#16
Signe Christensen, Morten K Grøftehauge, Karl Byriel, Wilhelmina M Huston, Emily Furlong, Begoña Heras, Jennifer L Martin, Róisín M McMahon
The Gram negative bacteria Chlamydia trachomatis is an obligate intracellular human pathogen that can cause pelvic inflammatory disease, infertility and blinding trachoma. C. trachomatis encodes a homolog of the dithiol oxidoreductase DsbA. Bacterial DsbA proteins introduce disulfide bonds to folding proteins providing structural bracing for secreted virulence factors, consequently these proteins are potential targets for antimicrobial drugs. Despite sharing functional and structural characteristics, the DsbA enzymes studied to date vary widely in their redox character...
2016: PloS One
https://www.readbyqxmd.com/read/28030282/the-global-trachoma-mapping-project-a-catalyst-for-progress-against-neglected-tropical-diseases
#17
Dirk Engels
No abstract text is available yet for this article.
2016: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/27993657/genome-analysis-of-chlamydia-trachomatis-for-functional-characterization-of-hypothetical-proteins-to-discover-novel-drug-targets
#18
Ahmad Abu Turab Naqvi, Safikur Rahman, Rubi, Firdaus Zeya, Kundan Kumar, Hani Choudhary, Mohammad Sarwar Jamal, Jihoe Kim, Md Imtaiyaz Hassan
C. trachomatis is a Gram-negative bacterium that causes trachoma and sexually transmitted disease (STD) Chlamydia in humans. Chlamydial genital infections are the most frequent among all communicable diseases. The D/UW-3/Cx strain of C. trachomatis contains 935 genes and three pseudogenes. Out of these genes, 887 genes code for proteins while six for rRNA, 37 tRNA, and three genes translate into other RNAs. The proteome of C. trachomatis made of 887 proteins contains 269 Hypothetical proteins (HPs) that are subjected to functional characterization...
December 16, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27956455/a-cluster-randomized-trial-to-assess-the-efficacy-of-targeting-trachoma-treatment-to-children
#19
Abdou Amza, Boubacar Kadri, Beido Nassirou, Sun Y Cotter, Nicole E Stoller, Zhaoxia Zhou, Robin L Bailey, David C Mabey, Travis C Porco, Jeremy D Keenan, Bruce D Gaynor, Sheila K West, Thomas M Lietman
BACKGROUND: The World Health Organizationʼns recommendeds annual treatment of the entire trachoma-endemic communities, although children typically have a higher load, longer duration, and greater likelihood of infection. METHODS: Forty-eight communities in Matameye, Niger were randomized to annual oral azithromycin treatment of the entire community or biannual treatment of children aged 0-12 years only. Both children and adults were monitored for ocular chlamydial infection by PCR...
December 12, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27939803/history-of-trachoma
#20
L Salazar-Quiñones, M Nieves-Moreno, A Asorey-García, D Díaz-Valle, E Santos-Bueso, J García Sanchez
No abstract text is available yet for this article.
December 8, 2016: Archivos de la Sociedad Española de Oftalmología
keyword
keyword
39928
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"