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Selam Yekta Sendul, Burcu Dirim, Cemile Ucgul Atılgan, Mehmet Demir, Ali Olgun, Semra Tiryaki Demir, Saniye Uke Uzun, Gurcan Dogukan Arsalan, Dilek Guven
PURPOSE: This study aimed to share the results of patients who underwent anterior tarsal flap rotation combined with anterior lamellar reposition because of cicatricial upper eyelid entropion, and to determine the effectiveness and reliability of this surgical technique. METHODS: Fifteen eyes of 11 patients (2 right eyes; 5 left eyes; and 4 bilateral eyes) on whom we performed anterior tarsal flap rotation surgery combined with anterior lamellar reposition because of cicatricial entropion were included in this study...
January 2018: Arquivos Brasileiros de Oftalmologia
Ryan E Wiegand, Gretchen Cooley, Brook Goodhew, Natalie Banniettis, Stephan Kohlhoff, Sarah Gwyn, Diana L Martin
Latent class modeling can be used to combine the results of multiple tests to compare the sensitivity and specificity of those tests in the absence of a gold standard. Seroepidemiology for chlamydia infection may be useful for determining the cumulative risk of infection within a population. Initial studies using the Chlamydia trachomatis immunodominant antigen Pgp3 have shown utility for seroepidemiology of sexually transmitted chlamydia and the eye disease trachoma. We present our latent class modeling results for comparison of antibody data obtained from three different Pgp3-based platforms - multiplex bead array, ELISA, and lateral flow assay...
March 9, 2018: Scientific Reports
(no author information available yet)
[This corrects the article DOI: 10.1371/journal.pntd.0004927.].
March 2018: PLoS Neglected Tropical Diseases
Abdulrahman AlDarrab, Yasser H Al-Faky, Ahmed Mousa, Adel H Alsuhaibani
PURPOSE: To study the effect of trachoma on meibomian glands using infrared meibography and to correlate the results with tear film parameters. METHODS: This is a prospective cohort study in which 86 eyes of healthy volunteers and 90 eyes with trachoma were included. Clinical assessment was performed including the following: slit-lamp examination looking for signs of sequelae of trachoma, tear breakup time (TBUT), superficial punctate keratopathy (SPK), Schirmer II test (with anesthesia), and meibum score...
April 2018: Cornea
P E Gallenga, M Del Boccio, C E Gallenga, G Neri, A Pennelli, E Toniato, L Lobefalo, M Maritati, P Perri, C Contini, G Del Boccio
An early double case of acute Ophthalmia neonatorum in 3-day-old twins is reported. Culture of eye swabs showed a wide bacterial polymorphism, in which common bacteria, such as Klebsiella pneumoniae, Streptococcus pneumoniae, Corynebacterium ulcerans and other Enterobacteriaceae, coexisted with atypical Mycoplasmataceae and Chlamydiaceae from resident cervical-vaginal maternal microbiota. The neonates were in an apparently healthy state, but showed red eyes with abundant greenish-yellow secretion, mild chemosis and lid edema...
January 2018: Journal of Biological Regulators and Homeostatic Agents
Hemjot Kaur, Laura Dize, Beatriz Munoz, Charlotte Gaydos, Sheila West
PURPOSE: Serological testing for antibodies to Chlamydia trachomatis pgp3 is being evaluated as a tool to use for trachoma surveillance. There are limited data on the reproducibility of the test results using a multiplex platform. METHODS: We tested the reproducibility of a serologic test for C. trachomatis pgp3 in 6 dried blood spots collected from a random sample of 45 children from a trachoma endemic area. The spots were tested on a multiplex bead array platform, using one bead set twice, using another bead set at the same time as the first, and using the same bead set twice on different days separated by several months...
March 1, 2018: Journal of Microbiological Methods
Victor Charoenrook, Ralph Michael, Maria Fideliz de la Paz, José Temprano, Rafael I Barraquer
PURPOSE: To compare the anatomical and the functional results between osteo-odonto-keratoprosthesis (OOKP) and keratoprosthesis using tibial bone autograft (Tibial bone KPro). METHODS: We reviewed the charts of 258 patients; 145 had OOKP whereas 113 had Tibial bone KPro implanted. Functional success was defined as best corrected visual acuity ≥0.05 on decimal scale and anatomical success as retention of the keratoprosthesis lamina. Kaplan-Meier survival curves were calculated for anatomical and functional survival as well as to estimate the probability of post-op complications...
February 28, 2018: Ocular Surface
A R Last, H Pickering, C H Roberts, F Coll, J Phelan, S E Burr, E Cassama, M Nabicassa, H M B Seth-Smith, J Hadfield, L T Cutcliffe, I N Clarke, D C W Mabey, R L Bailey, T G Clark, N R Thomson, M J Holland
BACKGROUND: Chlamydia trachomatis (Ct) is the most common infectious cause of blindness and bacterial sexually transmitted infection worldwide. Ct strain-specific differences in clinical trachoma suggest that genetic polymorphisms in Ct may contribute to the observed variability in severity of clinical disease. METHODS: Using Ct whole genome sequences obtained directly from conjunctival swabs, we studied Ct genomic diversity and associations between Ct genetic polymorphisms with ocular localization and disease severity in a treatment-naïve trachoma-endemic population in Guinea-Bissau, West Africa...
February 26, 2018: Genome Medicine
Afework Mulugeta, Gebremedhin Berhe Gebregergs, Selamawit Asfaw, Dejen Yemane, Mengistu Mitiku, Beyene Meresa, Goitom Gigar, Amanuel Kidane
BACKGROUND: The antibiotic treatment of people with trachoma helps to prevent transmission the disease in a community. Currently, Zithromax is the drug recommended for mass drug administration (MDA). MDA should be carried out annually for three to five years in trachoma endemic areas. Coverage survey is essential to track progress towards program goals and to identify communities with poor coverage in order to permit timely and appropriate actions. We assessed mass Zithromax administration coverage, social mobilization and campaign challenges in south and southeast zones of Tigray, Ethiopia...
February 26, 2018: PLoS Neglected Tropical Diseases
Sheila K West, Beatriz Munoz, Hemjot Kaur, Laura Dize, Harran Mkocha, Charlotte A Gaydos, Thomas C Quinn
A serologic test for antibodies to chlamydial antigen pgp3 may be a useful tool for trachoma surveillance. However, little is known about the stability of antibody status over time, or factors associated with seroreversion/conversion. A cohort of 2,111 children ages 1-9 years in Tanzania were followed for one year in the absence of mass azithromycin. At baseline and follow-up, they were evaluated for trachoma, chlamydial infection, and antibodies to chlamydial antigen pgp3. At baseline, 31% of children were seropositive for pgp3 antibodies and 6...
February 23, 2018: Scientific Reports
Hristina Vasileva, Robert Butcher, Harry Pickering, Oliver Sokana, Kelvin Jack, Anthony W Solomon, Martin J Holland, Chrissy H Roberts
BACKGROUND: Clinical signs of active (inflammatory) trachoma are found in many children in the Solomon Islands, but the majority of these individuals have no serological evidence of previous infection with Chlamydia trachomatis. In Temotu and Rennell and Bellona provinces, ocular infections with C. trachomatis were seldom detected among children with active trachoma; a similar lack of association was seen between active trachoma and other common bacterial and viral causes of follicular conjunctivitis...
February 21, 2018: Parasites & Vectors
Harry Pickering, Martin J Holland, Anna R Last, Matthew J Burton, Sarah E Burr
BACKGROUND: Trachoma, the leading infectious cause of blindness worldwide, is caused by conjunctival Chlamydia trachomatis infection. Trachoma is diagnosed clinically by observation of conjunctival inflammation and/or scarring; however, there is evidence that monitoring C. trachomatis infection may be required for elimination programmes. There are many commercial and 'in-house' nucleic acid amplification tests for the detection of C. trachomatis DNA, but the majority have not been validated for use with ocular swabs...
February 20, 2018: Parasites & Vectors
Michael Marks, Oriol Mitjà, Christian Bottomley, Cynthia Kwakye, Wendy Houinei, Mathias Bauri, Paul Adwere, Abdul A Abdulai, Fredrick Dua, Laud Boateng, James Wangi, Sally-Ann Ohene, Regina Wangnapi, Shirley V Simpson, Helen Miag, Kennedy K Addo, Laud A Basing, Damien Danavall, Kai H Chi, Allan Pillay, Ronald Ballard, Anthony W Solomon, Cheng Y Chen, Sibauk V Bieb, Yaw Adu-Sarkodie, David C W Mabey, Kingsley Asiedu
BACKGROUND: A dose of 30 mg/kg of azithromycin is recommended for treatment of yaws, a disease targeted for global eradication. Treatment with 20 mg/kg of azithromycin is recommended for the elimination of trachoma as a public health problem. In some settings, these diseases are co-endemic. We aimed to determine the efficacy of 20 mg/kg of azithromycin compared with 30 mg/kg azithromycin for the treatment of active and latent yaws. METHODS: We did a non-inferiority, open-label, randomised controlled trial in children aged 6-15 years who were recruited from schools in Ghana and schools and the community in Papua New Guinea...
February 15, 2018: Lancet Global Health
Tigist Astale, Eshetu Sata, Mulat Zerihun, Andrew W Nute, Aisha E P Stewart, Demelash Gessesse, Gedefaw Ayenew, Berhanu Melak, Melsew Chanyalew, Zerihun Tadesse, E Kelly Callahan, Scott D Nash
BACKGROUND: Trachoma is the leading infectious cause of blindness worldwide. In communities where the district level prevalence of trachomatous inflammation-follicular among children ages 1-9 years is ≥5%, WHO recommends annual mass drug administration (MDA) of antibiotics with the aim of at least 80% coverage. Population-based post-MDA coverage surveys are essential to understand the effectiveness of MDA programs, yet published reports from trachoma programs are rare. METHODS: In the Amhara region of Ethiopia, a population-based MDA coverage survey was conducted 3 weeks following the 2016 MDA to estimate the zonal prevalence of self-reported drug coverage in all 10 administrative zones...
February 16, 2018: PLoS Neglected Tropical Diseases
Joana Favacho, Antonio José Ledo Alves da Cunha, Samara Tatielle Monteiro Gomes, Felipe Bonfim Freitas, Maria Alice Freitas Queiroz, Antonio Carlos Rosário Vallinoto, Ricardo Ishak, Marluísa de Oliveira Guimarães Ishak
Trachoma is the leading infectious cause of blindness in the world and is associated with precarious living conditions in developing countries. The aim of the present study was to evaluate the prevalence of trachoma in three municipalities of the Marajó Archipelago, located in the state of Pará, Brazil. In 2008, 2,054 schoolchildren from the public primary school system of the urban area of the region and their communicants were clinically examined; in 2016, 1,502 schoolchildren were examined. The positive cases seen during the clinical evaluation were confirmed by direct immunofluorescence (DIF) laboratory tests...
February 15, 2018: PLoS Neglected Tropical Diseases
Lamine Traoré, Benoit Dembele, Modibo Keita, Steven Reid, Mahamadou Dembéle, Bréhima Mariko, Famolo Coulibaly, Whitney Goldman, Dramane Traoré, Daouda Coulibaly, Boubacar Guindo, Joe Amon, Marily Knieriemen, Yaobi Zhang
BACKGROUND: In 2009, three years after stopping mass treatment with azithromycin, a trachoma impact survey in four health districts in the Kayes region of Mali found a prevalence of trachomatous inflammation-follicular (TF) among children aged 1 to 9 years of >5% and a trachomatous trichiasis (TT) prevalence within the general population (≥1-year-old) of <1%. As a result, the government's national trachoma program expanded trichiasis surgery and related activities required to achieve trachoma elimination...
February 12, 2018: PLoS Neglected Tropical Diseases
Luis Piñeiro, Jenny Isaksson, Marisol Zapico, Gustavo Cilla, Björn Herrmann
OBJECTIVES: Chlamydia trachomatis ompA genotypes A and B, primarily associated with trachoma, were unexpectedly detected in urogenital samples of patients in Spain, a trachoma-free country. In this study, we aimed to explain this finding using analysis of organotropism-related genes and a multilocus sequence typing (MLST) technique. METHODS: C. trachomatis genotypes A or B were detected in 8/930 (0.9%) infection episodes between 2006 and 2012. In these strains, organotropism related genes (polymorphic membrane protein gene H, tryptophan synthase gene A, CTA0934, and cytotoxin) were studied...
February 7, 2018: Clinical Microbiology and Infection
Michael John Patton, Chih-Yu Chen, Chunfu Yang, Stuart McCorrister, Chris Grant, Garrett Westmacott, Xin-Yong Yuan, Estela Ochoa, Robert Fariss, William M Whitmire, John H Carlson, Harlan D Caldwell, Grant McClarty
Chlamydia trachomatis is an obligate intracellular bacterial pathogen that causes blinding trachoma and sexually transmitted disease. C. trachomatis isolates are classified into 2 biovars-lymphogranuloma venereum (LGV) and trachoma-which are distinguished biologically by their natural host cell infection tropism. LGV biovars infect macrophages and are invasive, whereas trachoma biovars infect oculo-urogenital epithelial cells and are noninvasive. The C. trachomatis plasmid is an important virulence factor in the pathogenesis of these infections...
January 30, 2018: MBio
Rajnish Sahu, Richa Verma, Saurabh Dixit, Joseph U Igietseme, Carolyn M Black, Skyla Duncan, Shree R Singh, Vida A Dennis
There is a persisting global burden and considerable public health challenge by the plethora of ocular, genital and respiratory diseases caused by members of the Gram-negative bacteria of the genus Chlamydia. The major diseases are conjunctivitis and blinding trachoma, non-gonococcal urethritis, cervicitis, pelvic inflammatory disease, ectopic pregnancy, tubal factor infertility, and interstitial pneumonia. The failures in screening and other prevention programs led to the current medical opinion that an efficacious prophylactic vaccine is the best approach to protect humans from chlamydial infections...
March 2018: Expert Review of Vaccines
George M Bohigian, Robert M Feibel
The Francis I. Proctor Foundation for Research in Ophthalmology is internationally recognized for its research in the fields of ocular inflammatory and infectious diseases. Although the name of one of its founders, Francis I. Proctor, MD (1864-1936) is memorialized, the legacy of his wife, Elizabeth C. Proctor (1882-1975) is not as well known. They were both full partners in this endeavor. Francis, a successful and wealthy ophthalmologist, retired to Santa Fe, New Mexico. After their marriage, they became interested in the problem of blinding trachoma, then an endemic problem on the Native American Indian reservations...
January 1, 2018: Journal of Medical Biography
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