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toxoplasmosis treatment

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https://www.readbyqxmd.com/read/28920819/disseminated-toxoplasmosis-in-a-captive-adult-dromedary-camel-camelus-dromedarius
#1
Jennifer Riley, Michael M Garner, Matti Kiupel, Elizabeth E Hammond
An 11-yr-old dromedary camel (Camelus dromedarius) at a zoo in south Florida presented with diarrhea while being treated with enrofloxacin and dexamethasone for a chronic skin condition. Three weeks after initiation of therapy with dexamethasone, the camel developed diarrhea, which worsened despite treatment with antibiotics. The animal became increasingly debilitated, developed hemorrhagic diarrhea, declined rapidly over the next 3 days, and died despite aggressive fluid therapy and supportive care. Histologic examination revealed intralesional protozoal tissue cysts consistent with Toxoplasma gondii in the intestines, lungs, and liver, as well as lymphoid depletion of the spleen suggesting immunosuppression...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28883820/decidual-macrophage-functional-polarization-during-abnormal-pregnancy-due-to-toxoplasma-gondii-role-for-lilrb4
#2
Zhidan Li, Mingdong Zhao, Teng Li, Jing Zheng, Xianbing Liu, Yuzhu Jiang, Haixia Zhang, Xuemei Hu
During gestation, Toxoplasma gondii infection produces a series of complications including stillbirths, abortions, and congenital malformations. The inhibitory receptor, LILRB4, which is mainly expressed by professional antigen-presenting cells (especially macrophages and dendritic cells) may play an important immune-regulatory role at the maternal-fetal interface. To assess the role of LILRB4 during T. gondii infection, LILRB4(-/-) and T. gondii infected pregnant mouse models were established. Further, human primary-decidual macrophages were treated with anti-LILRB4 neutralizing antibody and then infected with T...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28879584/adverse-event-profile-of-pyrimethamine-based-therapy-in-toxoplasmosis-a-systematic-review
#3
REVIEW
Ruben R Ben-Harari, Elizabeth Goodwin, Julio Casoy
INTRODUCTION: Approximately a third of the population worldwide is chronically infected with Toxoplasma gondii. Pyrimethamine-based regimens are recommended for the treatment of toxoplasmosis. OBJECTIVE: The aim was to evaluate the safety profile of pyrimethamine-based treatment for the three main Toxoplasma manifestations: toxoplasmic encephalitis (TE), ocular toxoplasmosis, and congenital toxoplasmosis. METHODS: PubMed, Cochrane Library, and Google Scholar databases were searched through August 1, 2016...
September 6, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28838776/the-effect-of-lopinavir-ritonavir-and-lopinavir-ritonavir-loaded-plga-nanoparticles-on-experimental-toxoplasmosis
#4
Iman Fathy Abou-El-Naga, Eman Dorry El Kerdany, Rasha Fadly Mady, Thanaa Ibrahim Shalaby, Enas Mohammed Zaytoun
A marked reduction has been achieved in the incidence and clinical course of toxoplasmic encephalitis after the introduction of protease inhibitors within the treatment regimen of HIV (HIV-PIs). This work was undertaken to study for the first time, the efficacy of HIV-PIs, lopinavir/ritonavir (L/R), as a therapeutic agent in acute experimental toxoplasmosis. Lopinavir/ritonavir (L/R) were used in the same ratio present in aluvia, a known HIV-PIs drug used in the developing countries in the treatment regimens of AID's patient...
August 21, 2017: Parasitology International
https://www.readbyqxmd.com/read/28835680/transcriptome-analysis-of-ankylosing-spondylitis-patients-before-and-after-tnf-%C3%AE-inhibitor-therapy-reveals-the-pathways-affected
#5
X B Wang, J J Ellis, D J Pennisi, X Song, J Batra, K Hollis, L A Bradbury, Z Li, T J Kenna, M A Brown
Tumor necrosis factor-α (TNF-α) inhibitors are highly effective in suppressing inflammation in ankylosing spondylitis (AS) patients, and operate by suppression of TFN-α and downstream immunological pathways. To determine the mechanisms of action of TNF-α inhibitors in AS patients, we used transcriptomic and bioinformatic approaches on peripheral blood mononuclear cells from AS patients pre and post treatment. We found 656 differentially expressed genes, including the genome-wide significant AS-associated genes, IL6R, NOTCH1, IL10, CXCR2 and TNFRSF1A...
August 24, 2017: Genes and Immunity
https://www.readbyqxmd.com/read/28835429/a-rare-case-of-pulmonary-toxoplasmosis-in-a-patient-with-undifferentiated-inflammatory-arthritis-on-chronic-methotrexate-and-corticosteroid-therapy
#6
Abdullateef Abdulkareem, Ryan Steven D'Souza, Nitin Patel, Anthony A Donato
Pulmonary toxoplasmosis is a serious pulmonary condition caused by the protozoan Toxoplasma gondii It typically affects immunocompromised patients presenting acutely with cough, fever, myalgias, arthralgias and lymphadenopathy, and chronically with persistent cough and dyspnoea. Because of its protean features, it can mimic many more common lung conditions in the immunocompromised patient, including atypical pneumonia, Pneumocystis pneumonia and interstitial lung disease. In this article, we present the case of a 55-year-old woman who presented to our hospital with persistent dyspnoea and cough, initially suspected to have an arthritis-related interstitial lung disease...
August 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28819470/causes-of-death-and-factors-associated-with-early-mortality-of-hiv-infected-adults-admitted-to-korle-bu-teaching-hospital
#7
Adriana Saavedra, Nia Campinha-Bacote, Maurice Hajjar, Ernest Kenu, Fizza Syeda Gillani, Adjoa Obo-Akwa, Margaret Lartey, Awewura Kwara
INTRODUCTION: This study sought to identify common causes of death as well as the factors associated with the high inpatient mortality rate of HIV-infected patients at the Korle-Bu Teaching Hospital (KBTH). METHODS: The retrospective study reviewed the medical records of 547 HIV-infected adults aged 18 years or older admitted to the KBTH between the months of January 2012 and October 2013. Using standardized abstraction forms, clinical and demographic data of eligible patients was collected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28818085/a-rare-case-of-acute-toxoplasmosis-in-a-stray-dog-due-to-infection-of-t-gondii-clonal-type-i-public-health-concern-in-urban-settings-with-stray-animals
#8
Sergio Migliore, Salvatore La Marca, Cristian Stabile, Vincenzo Di Marco Lo Presti, Maria Vitale
BACKGROUND: Typing of Toxoplasma gondii strains is important in epidemiological surveys, to understand the distribution and virulence of different clones of the parasite among human and animal populations. Stray dogs can be consider sentinel animals for contaminated environments playing an important but probably under- evaluated role in the epidemiology of T. gondii. We reported a rare case of acute toxoplasmosis in a stray dog due to clonal type I infection. The clonal type I, sporadic in Europe, is frequently associated with severe toxoplasmosis in humans and the control of its circulation is particularly relevant for public health...
August 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28803905/azithromycin-treatment-is-able-to-control-the-infection-by-two-genotypes-of-toxoplasma-gondii-in-human-trophoblast-bewo-cells
#9
Mayara Ribeiro, Priscila Silva Franco, Janice Buiate Lopes-Maria, Mariana Bodini Angeloni, Bellisa de Freitas Barbosa, Angelica de Oliveira Gomes, Andressa Silva Castro, Rafaela José da Silva, Fernanda Chaves de Oliveira, Iliana Claudia Balga Milian, Olindo Assis Martins-Filho, Francesca Ietta, José Roberto Mineo, Eloisa Amália Vieira Ferro
Trophoblast infection by Toxoplasma gondii plays a pivotal role in the vertical transmission of toxoplasmosis. Here, we investigate whether the antibiotic therapy with azithromycin, spiramycin and sulfadiazine/pyrimethamine are effective to control trophoblast infection by two Brazilian T. gondii genotypes, TgChBrUD1 or TgChBrUD2. Two antibiotic protocols were evaluated, as follow: i) pre-treatment of T. gondii-tachyzoites with selected antibiotics prior trophoblast infection and ii) post-treatment of infected trophoblasts...
October 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28798905/enrofloxacin-and-toltrazuril-are-able-to-reduce-toxoplasma-gondii-growth-in-human-bewo-trophoblastic-cells-and-villous-explants-from-human-third-trimester-pregnancy
#10
Rafaela J da Silva, Angelica O Gomes, Priscila S Franco, Ariane S Pereira, Iliana C B Milian, Mayara Ribeiro, Paolo Fiorenzani, Maria C Dos Santos, José R Mineo, Neide M da Silva, Eloisa A V Ferro, Bellisa de Freitas Barbosa
Classical treatment for congenital toxoplasmosis is based on combination of sulfadiazine and pyrimethamine plus folinic acid. Due to teratogenic effects and bone marrow suppression caused by pyrimethamine, the establishment of new therapeutic strategies is indispensable to minimize the side effects and improve the control of infection. Previous studies demonstrated that enrofloxacin and toltrazuril reduced the incidence of Neospora caninum and Toxoplasma gondii infection. The aim of the present study was to evaluate the efficacy of enrofloxacin and toltrazuril in the control of T...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28774497/activity-of-rosuvastatin-in-tachyzoites-of-toxoplasma-gondii-rh-strain-in-hela-cells
#11
Raquel Arruda Sanfelice, Laís Fernanda Machado, Larissa Rodrigues Bosqui, Milena Menegazzo Miranda-Sapla, Fernanda Tomiotto-Pellissier, Gabriela de Alcântara Dalevedo, Dielle Ioris, Guilherme Fonseca Reis, Luciano Aparecido Panagio, Italmar Teodorico Navarro, Juliano Bordignon, Ivete Conchon-Costa, Wander Rogério Pavanelli, Ricardo Sergio Almeida, Idessania Nazareth Costa
Due to the toxicity of conventional medication in toxoplasmosis, some drugs are being studied for treating this infection, such as statins, especially rosuvastatin compound, which is efficient in inhibiting the initial isoprenoid biosynthesis processes in humans and the parasite. The goal of this study was to assess the activity of rosuvastatin in HeLa cells infected with the RH strain of T. gondii. In the experiment, HeLa cells (1 × 10(5)) were infected with tachyzoites of T. gondii (5 × 10(5)). After the experimental infection, we assessed the number of infected cells and the amount of intracellular tachyzoites...
October 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28769551/intravitreal-aflibercept-for-choroidal-neovascularization-associated-with-chorioretinitis-a-pilot-study
#12
Andrii R Korol, Oleksandra Zborovska, Taras Kustryn, Oleksandra Dorokhova, Nataliya Pasyechnikova
PURPOSE: The purpose of this study was to evaluate the potential benefits of intravitreal aflibercept injections for the treatment of choroidal neovascularization (CNV) secondary to chorioretinitis. METHODS: In this uncontrolled, prospective cohort study, 15 eyes of 14 consecutive patients affected by CNV associated with ocular toxoplasmosis were treated with intravitreal aflibercept (2 mg) pro re nata and observed over a 12-month follow-up period. The primary outcome was the change in best-corrected visual acuity (BCVA) from baseline to month 12...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28759251/toxoplasma-gondii-a-foodborne-pathogen-in-the-swine-production-chain-from-a-european-perspective
#13
Alberto De Berardinis, Domenico Paludi, Luca Pennisi, Alberto Vergara
Toxoplasmosis is a foodborne zoonosis transmitted by Toxoplasma gondii, a cosmopolitan protozoan that infects humans through exposure to different parasite stages, in particular by ingestion of tissue cysts or tachyzoites contained in meat, primary offal (viscera), and meat-derived products or ingestion of environmental sporulated oocysts in contaminated food or water. The pig is an important species for infection: raw or undercooked pork consumption not subject to treatment able to inactivate the parasite represents a risk to consumers' health...
July 31, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28728858/-dress-complicated-by-hemophagocytic-lymphohistiocytosis-in-an-infant-treated-for-congenital-toxoplasmosis
#14
S Rioualen, J Dufau, C Flatres, P Lavenant, L Misery, J-M Roué
BACKGROUND: Drug reaction with eosinophilia and systemic symptoms (DRESS) is a severe disease that may be complicated by hemophagocytic lymphohistiocytosis but this is rarely described in children. PATIENTS AND METHODS: We report the case of a 5-week old infant hospitalized in a pediatric intensive care unit for hemophagocytic lymphohistiocytosis with prolonged fever, splenomegaly, cytopenia, fibrinogen≤1.5g/L, ferritin≥500μg/L, and soluble IL-2 receptor≥2400U/mL...
July 17, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28713605/diarrhea-as-a-presenting-symptom-of-disseminated-toxoplasmosis
#15
Matthew Glover, Zhouwen Tang, Robert Sealock, Shilpa Jain
Disseminated toxoplasmosis is uncommon in both immunocompetent and immunocompromised hosts with gastrointestinal involvement being rarely described. We report a case of disseminated gastrointestinal toxoplasmosis in an immunocompromised man who presented with one month of diarrhea and abdominal pain. Imaging showed thickening of the ascending colon and cecum. Esophagogastroduodenoscopy and colonoscopy biopsies revealed Toxoplasma gondii, confirmed by immunostain. Symptoms completely resolved following treatment with pyrimethamine, sulfadiazine, and leucovorin...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28710007/toxoplasmosis-treatment-with-diphenyl-diselenide-in-infected-mice-modulates-the-activity-of-purinergic-enzymes-and-reduces-inflammation-in-spleen
#16
Pedro H Doleski, Maura V Ten Caten, Daniela F Passos, Lívia G Castilhos, Daniela B R Leal, Vanessa S Machado, Nathieli B Bottari, Fernanda F Vogel, Ricardo E Mendes, Aleksandro Schafer da Silva
Toxoplasma gondii, an intracellular protozoan, may cause chronic infection in the brain tissue of the host inducing a systemic pro-inflammatory profile. Chronic infections can induce numerous physiological changes, such as alterations in the immune and oxidative profiles. Diphenyl diselenide (PhSe)2, an organoselenium compound, has shown antioxidant and immunomodulatory activities in recent studies. So, the aim of this study was to investigate the activity of purinergic enzymes and reactive oxygen species (ROS) in serum and spleen of mice chronically infected by T...
October 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28696589/in-vitro-activity-of-the-interaction-between-taxifolin-dihydroquercetin-and-pyrimethamine-against-toxoplasma-gondii
#17
Daniel A Abugri, William H Witola, Albert E Russell, Roberta M Troy
Toxoplasmosis is one of the most neglected zoonotic foodborne parasitic diseases that cause public health and socio-economic concern worldwide. The current drugs used for the treatment of toxoplasmosis have been identified to have clinical limitations. Hence, new drugs are urgently needed to eradicate T.gondii infections globally. Here, an in vitro anti-Toxoplasma gondii activity of taxifolin (dihydroquercetin) and dihydrofolate inhibitor (pyrimethamine) alone and in combination with a fixed concentration of pyrimethamine were investigated against the rapidly proliferating T...
July 11, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28692640/congenital-toxoplasmosis-in-austria-prenatal-screening-for-prevention-is-cost-saving
#18
Andrea-Romana Prusa, David C Kasper, Larry Sawers, Evelyn Walter, Michael Hayde, Eileen Stillwaggon
BACKGROUND: Primary infection of Toxoplasma gondii during pregnancy can be transmitted to the unborn child and may have serious consequences, including retinochoroiditis, hydrocephaly, cerebral calcifications, encephalitis, splenomegaly, hearing loss, blindness, and death. Austria, a country with moderate seroprevalence, instituted mandatory prenatal screening for toxoplasma infection to minimize the effects of congenital transmission. This work compares the societal costs of congenital toxoplasmosis under the Austrian national prenatal screening program with the societal costs that would have occurred in a No-Screening scenario...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28682759/structuraland-antigenic-analysis-of-a-new-rhoptry-pseudokinase-gene-rop54-in-toxoplasma-gondii
#19
Jian Zhou, Gang Lu, Lin Wang, Aihua H Zhou, Yali L Han, Jingjing J Guo, Pengxia X Song, Huaiyu Y Zhou, Hua Cong, Ming Hou, Shenyi Y He
Toxoplasma gondii is defined as an obligate intracellular apicomplexan parasite and influences approximatelyone-third of the human all over the world. ROP54 protein is expressed in the rhoptry of Toxoplasma gondii. In the present study, we used SMART software to analyzethe secondary structure of ROP54. The 3D model of ROP54 protein was constructed and analyzed using SWISS-MODEL server and VMD software. The structure results fully showed that ROP54 proteinis an importantmember from the ROP family. Moreover, DNAMAN software and Epitope Database online service were used to analyze liner-B cell epitopes and Th-cell epitopes of the protein...
September 26, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28653591/mechanism-of-dexamethasone-in-the-context-of-toxoplasma-gondii-infection
#20
Jing Zhang, Xin Qin, Y U Zhu, Shuang Zhang, Xue-Wei Zhang, H E Lu
Toxoplasmosis is a serious zoonoses disease and opportunistic, and can be life-threatening. Dexamethasone (DEX) is widely used in the clinic for treatment of inflammatory and autoimmune diseases. However, long-term use of DEX is often easy to lead to acute toxoplasmosis in patients, and the potential molecular mechanism is still not very clear. The aims of this study were to investigate the effect of DEX on proliferation of Toxoplasma and its molecular mechanisms, and to establish the corresponding control measures...
June 27, 2017: Parasitology
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