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https://www.readbyqxmd.com/read/28811115/recurrence-of-cutaneous-coccidioidomycosis-6-years-after-valley-fever-a-case-presentation-and-literature-review
#1
Rana Shahab, Nasir K Amra, Rola Rabah, Justin Saunar, Joan Soriano, Jaffar A Al-Tawfiq
Coccidioidomycosis is usually acquired by inhalation of spores of Coccidioides immitis and C. posadasii. The disease ranges from a self-limited acute pneumonia (Valley Fever) to a disseminated disease. We present a 44-year-old healthy male who had patchy hair loss of several months duration resembling discoid lupus. He developed a firm non-scaly red plaque on the right forehead. Initial biopsy showed spongiotic dermatitis, and he was treated with systemic steroids. He then developed forehead and periorbital cellulitis and was treated with systemic antibiotics...
July 8, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28810997/cutaneous-leishmaniasis-in-a-saudi-arabian-soldier-stationed-in-the-united-states
#2
Kelly Laurent, Jason Susong, Eric Fillman, Simon Ritchie
BACKGROUND: Leishmaniasis is a common parasitic disease seen in many parts of the world, especially in areas where current U.S. and international forces are deployed. Approximately 350 million people are thought to be at risk of cutaneous leishmaniasis (CL) with an annual incidence of 1.5 million cases. Over 90% of cutaneous infections with Leishmania occur in the Middle East, Brazil, and Peru. Outbreaks of CL may occur in military personnel deployed to endemic areas. Since the incubation period for symptomatic CL ranges from weeks to months, symptoms may not appear until well after returning to the United States...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28808511/large-endocardial-rheumatoid-nodules-a-case-report-and-review-of-the-literature
#3
Allen Vantrease, Christopher Trabue, James Atkinson, Paul McNabb
Rheumatoid nodules occur frequently in patients with rheumatoid arthritis and are the most common cutaneous manifestation of the disease. Although uncommon, rheumatoid nodules may also occur on cardiac valves, where they may be large and clinically significant. They may embolize and cause stroke. They may cause regurgitant murmurs, or they may result in valvular destruction. Echocardiographically, they may mimic an atrial myxoma or appear as a vegetation. We present a patient with seronegative rheumatoid arthritis who developed an acute embolic stroke; he had peripheral stigmata of infective endocarditis on physical examination and echocardiography revealed a mitral valve vegetation...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28807297/cutaneous-leishmaniosis-in-naturally-infected-dogs-in-paran%C3%A3-brazil-and-the-epidemiological-implications-of-leishmania-viannia-braziliensis-detection-in-internal-organs-and-intact-skin
#4
Ellen de Souza Marquez, Edilene Alcântara de Castro, Luciene Biazono Nabut, Magda Clara Vieira da Costa-Ribeiro, Ludmilla Dela Coletta Troiano Araújo, Saloe Bispo Poubel, André Luiz Gonçalves, Mariza Fordellone Rosa Cruz, Ana Paula Millet Evangelista Dos Santos Trad, Rafael Andre Ferreira Dias, Italmar Teodorico Navarro, Vanete Thomaz-Soccol
Environmental changes have occurred over the years, altering the eco-epidemiological pattern of leishmaniosis in the State of Paraná, Brazil, involving the pillars of the cycle (parasite, vectors, reservoir, and environment) and their interaction. Much has been discussed about the dog's role as a reservoir of the Leishmania (Viannia) braziliensis Vianna, 1911 transmission cycle. However, this question remains unanswered. The purpose of this study was to investigate, using parasitological and molecular methods, different samples in eight naturally infected dogs from an endemic rural locality where only L...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28804654/histoplasmosis-by-histoplasma-capsulatum-var-duboisii-observed-at-the-laboratory-of-pathological-anatomy-of-lom%C3%A3-in-togo
#5
Tchin Darré, Bayaki Saka, Abas Mouhari-Touré, Améyo Monique Dorkenoo, Koffi Amégbor, Vincent Palokinam Pitche, Gado Napo-Koura
Our study aimed to describe the epidemiological, clinical, and diagnostic aspects of African histoplasmosis in Togo through a descriptive and cross-sectional study on histological diagnosed African histoplasmosis in Pathology Department of Lomé from 2002 to 2016 (15 years). A total of 17 cases of African histoplasmosis were diagnosed. The sex ratio (M/F) was 1.8. The annual incidence was 1.1 cases. The mean age of the patients was 27.2 ± 0.4 years. All our patients were of social categories with a low socioeconomic level...
2017: Journal of Pathogens
https://www.readbyqxmd.com/read/28801835/fabrication-of-acyclovir-loaded-flexible-membrane-vesicles-fmvs-evidence-of-preclinical-efficacy-of-antiviral-activity-in-murine-model-of-cutaneous-hsv-1-infection
#6
Gajanand Sharma, Kanika Thakur, Arvind Setia, Basant Amarji, Mini P Singh, Kaisar Raza, Om Prakash Katare
The present investigation focuses on the development and evaluation of acyclovir-loaded flexible membrane vesicles (ACY-FMVs) and evaluates their targeting potential to localize the drug into skin layers. The drug-loaded FMVs were prepared by thin-film hydration method and characterized for various attributes including micromeritics, entrapment efficiency, vesicle shape, size, and degree of deformability. The values of particle size and zeta potential of the developed carrier system were found to be 453.7 nm and - 11...
August 11, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28798144/frontline-science-leishmania-mexicana-amastigotes-can-replicate-within-neutrophils
#7
Benjamin P Hurrell, Manon Beaumann, Sandrina Heyde, Ivo B Regli, Andreas J Müller, Fabienne Tacchini-Cottier
Cutaneous leishmaniasis is a neglected tropical disease, causing a spectrum of clinical manifestations varying from self-healing to unhealing lesions that may be very difficult to treat. Emerging evidence points to a detrimental role for neutrophils during the first hours following infection with many distinct Leishmania species (spp.) at a time when the parasite is in its nonreplicative promastigote form. Neutrophils have also been detected at later stages of infection in unhealing chronic cutaneous lesions...
August 10, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28797647/matrix-metalloproteinases-the-sculptors-of-chronic-cutaneous-wounds
#8
REVIEW
Venkat Raghavan Krishnaswamy, Dvir Mintz, Irit Sagi
Cutaneous wound healing is a complex mechanism with multiple processes orchestrating harmoniously for structural and functional restoration of the damaged tissue. Chronic non-healing wounds plagued with infection create a major healthcare burden and is one of the most frustrating clinical problems. Chronic wounds are manifested by prolonged inflammation, defective re-epithelialization and haphazard remodeling. Matrix metalloproteinases (MMPs) are zinc dependent enzymes that play cardinal functions in wound healing...
August 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28797273/host-immune-responses-to-the-itch-mite-sarcoptes-scabiei-in-humans
#9
REVIEW
Sajad A Bhat, Kate E Mounsey, Xiaosong Liu, Shelley F Walton
Scabies is a parasitic disease due to infestation of skin by the burrowing mite Sarcoptes scabiei. Scabies is a major public health problem and endemic in resource poor communities worldwide affecting over 100 million people. Associated bacterial infections cause substantial morbidity, and in severe cases can lead to renal and cardiac diseases. Mite infestation of the skin causes localised cutaneous inflammation, pruritus, skin lesions, and allergic and inflammatory responses are mounted by the host against the mite and its products...
August 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28796786/phlebotomine-sand-fly-borne-pathogens-in-the-mediterranean-basin-human-leishmaniasis-and-phlebovirus-infections
#10
REVIEW
Martina Moriconi, Gianluca Rugna, Mattia Calzolari, Romeo Bellini, Alessandro Albieri, Paola Angelini, Roberto Cagarelli, Maria P Landini, Remi N Charrel, Stefania Varani
Pathogens transmitted to humans by phlebotomine sand flies are neglected, as they cause infectious diseases that are not on the priority list of national and international public health systems. However, the infections caused by protozoa of the Leishmania genus and viruses belonging to the Phlebovirus genus (family Phenuiviridae)-the most significant group of viruses transmitted by sand flies-have a relevant role for human pathology. These infections are emerging in the Mediterranean region and will likely spread in forthcoming decades, posing a complex threat to human health...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28796338/benign-and-malignant-hybrid-adnexal-tumors-in-a-patient-with-epidermodysplasia-verruciformis
#11
Jonathan Ho, Sarah A Kam, Ali Al-Haseni, Alina Markova, Debjani Sahni, Christina Lam, Lynne J Goldberg, Jag Bhawan
Epidermodysplasia verruciformis (EV) is a genodermatosis characterized by overgrowth of flat warts, pityriasis versicolor-like lesions and an increased propensity for developing cutaneous squamous cell carcinomas due to abnormal susceptibility to infection with beta-human papilloma viruses. Adnexal tumors are not typically associated with EV. Here we report a spectrum of hybrid adnexal tumors with divergent eccrine and folliculosebaceous differentiation, and cytologic features ranging from benign to frankly atypical, in a patient with inherited EV...
August 10, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28795077/sensitive-molecular-diagnostics-for-cutaneous-leishmaniasis
#12
Orli Sagi, Anat Berkowitz, Shlomi Codish, Victor Novack, Aviv Rashti, Fouad Akad, Yonat Shemer-Avni
BACKGROUND: Rapid diagnosis of cutaneous leishmaniasis (CL) and identification of Leishmania species is highly important for the disease management. In Israel, CL is caused mainly by Leishmania major and Leishmania tropica species. METHODS: We established an easy to handle point of care lesion-swabbing, combined with a highly sensitive multiplex real time PCR (multiplex qPCR) for accurate and rapid diagnosis of Leishmania species. RESULTS: Using three probes: one general for: Leishmania species, and two specific for L major, and L tropica, we screened 1783 clinical samples collected during two years...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28794647/cefazolin-potency-against-methicillin-resistant-staphylococcus-aureus-a-microbiologic-assessment-in-support-of-a-novel-drug-delivery-system-for-skin-and-skin-structure-infections
#13
David P Nicolau, Barry N Silberg
INTRODUCTION: Despite aggressive medical and surgical management, the resolution of skin and skin structure infections is often difficult due to insufficient host response, reduced drug penetration, and a high prevalence of resistance organisms such as methicillin-resistant Staphylococcus aureus (MRSA). As a result of these factors, conventional management often consists of prolonged broad-spectrum systemic antimicrobials. An alternative therapy in development, ultrasonic drug dispersion (UDD), uses a subcutaneous injection followed by external trans-cutaneous ultrasound to deliver high tissue concentrations of cefazolin with limited systemic exposure...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28794624/nanostructured-delivery-systems-with-improved-leishmanicidal-activity-a-critical-review
#14
REVIEW
Natascia Bruni, Barbara Stella, Leonardo Giraudo, Carlo Della Pepa, Daniela Gastaldi, Franco Dosio
Leishmaniasis is a vector-borne zoonotic disease caused by protozoan parasites of the genus Leishmania, which are responsible for numerous clinical manifestations, such as cutaneous, visceral, and mucocutaneous leishmaniasis, depending on the site of infection for particular species. These complexities threaten 350 million people in 98 countries worldwide. Amastigotes living within macrophage phagolysosomes are the principal target of antileishmanial treatment, but these are not an easy target as drugs must overcome major structural barriers...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28794554/mucocutaneous-manifestations-in-patients-with-rheumatoid-arthritis-a-cross-sectional-study-from-eastern-india
#15
Sudip Kumar Ghosh, Debabrata Bandyopadhyay, Surajit Kumar Biswas, Ivoreen Darung
BACKGROUND: Cutaneous manifestations are fairly common in rheumatoid arthritis (RA) and they can help in early diagnosis, prompt treatment, and hence reduced morbidity from the disease. AIMS: The objective of the present study was to find out the different patterns of dermatoses in a group of patients with RA from Eastern India. METHODOLOGY: Consecutive patients fulfilling the American Rheumatism Association 1987 revised criteria for the classification of RA and who had different dermatoses were included in this cross-sectional study done over a period of 8 years in a tertiary care hospital in Eastern India...
July 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28794033/ancient-evolution-and-dispersion-of-human-papillomavirus-type-58-variants
#16
Zigui Chen, Wendy C S Ho, Siaw Shi Boon, Priscilla T Y Law, Martin C W Chan, Rob DeSalle, Robert D Burk, Paul K S Chan
Human papillomavirus type 58 is found in 10-18% of cervical cancers in East Asia but rather uncommon elsewhere. The distribution and oncogenic potential of HPV58 variants appear to be heterogeneous since the E7 T20I/G63S variant is more prevalent in East Asia and confers 7-9 fold higher risk for cervical precancer and cancer. However, the underlying genomic mechanisms that explain the geographic and carcinogenic diversity of HPV58 variants are still poorly understood. In this study, we used a combination of phylogenetic analyses and bioinformatics to investigate the deep evolutionary history of HPV58 complete genome variants...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28793012/refractory-pemphigus-foliaceus-associated-with-herpesvirus-infection-case-report
#17
Nurimar C Fernandes, Heloisa Rampinelli, Leandro Magalhães de Souza, Maria Angélica A M Guimarães
Pemphigus foliaceus (PF) is an autoimmune disease characterized by blistering of the skin. Infections caused by members of the herpesviridae family have been suggested as a possible triggering factor for pemphigus vulgaris (PV), but not for PF. The present study aimed to investigate the presence of Human herpesvirus (types 1, 2, 3) in corticosteroid refractory skin lesions from a patient with PF, by a Polymerase chain reaction (PCR) assay. The sample collected from cutaneous blisters has tested positive for herpes simplex virus type 1 (HSV1) after sequence analysis of the amplified viral genomic segment...
2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28792090/distinct-activation-mechanisms-trigger-the-trypanocidal-activity-of-dna-damaging-prodrugs
#18
Emma Louise Meredith, Ambika Kumar, Aya Konno, Joanna Szular, Sam Alsford, Karin Seifert, David Horn, Shane R Wilkinson
Quinone-based compounds have been exploited to treat infectious diseases and cancer, with such chemicals often functioning as inhibitors of key metabolic pathways or as prodrugs. Here, we screened an aziridinyl-1,4-benzoquinone (ABQ) library against the causative agents of trypanosomiasis, and cutaneous leishmaniasis, identifying several potent structures that exhibited EC50 values of <100 nM. However, these compounds also displayed significant toxicity towards mammalian cells indicating that they are not suitable therapies for systemic infections...
August 9, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28791687/skin-signs-of-primary-immunodeficiencies-how-to-find-the-genes-to-check
#19
REVIEW
M Ettinger, J Schreml, K Wirsching, M Berneburg, S Schreml
Primary immunodeficiencies (PIDs) are a heterogeneous group of rare diseases that result from defects in immune system development and/or function. The clinical manifestations of PIDs are highly variable, but most disorders involve at least an increased susceptibility to infection. Furthermore, cutaneous manifestations are very common in PIDs. As an easy accessible organ, skin canbecrucial for early diagnosis and treatment. This is relevant for preventing significant disease-associated morbidity and mortality...
August 9, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28789852/recombinant-calponin-of-human-filariid-brugia-malayi-secondary-structure-and-immunoprophylactic-potential
#20
Shiv K Verma, Ashish Arora, P Kalpana Murthy
In the search for potential vaccine candidates for the control of human lymphatic filariasis, we recently identified calponin-like protein, that regulates actin/myosin interactions, in a proinflammatory fraction F8 (45.24-48.64kDa) of Brugia malayi adult worms. In the present study, the gene was cloned, expressed, and the recombinant Calponin of B. malayi (r-ClpBm) was prepared and characterized. r-ClpBm bears homology with OV9M of Onchocerca volvulus, a non-lymphatic filariid that causes loss of vision and cutaneous pathology...
August 5, 2017: Vaccine
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