Delilah Burrowes, Kenneth Boyer, Charles N Swisher, A Gwendolyn Noble, Mari Sautter, Peter Heydemann, Peter Rabiah, Daniel Lee, Rima McLeod
{"title":"Spinal Cord Lesions in Congenital Toxoplasmosis Demonstrated with Neuroimaging, Including Their Successful Treatment in an Adult.","authors":"Delilah Burrowes, Kenneth Boyer, Charles N Swisher, A Gwendolyn Noble, Mari Sautter, Peter Heydemann, Peter Rabiah, Daniel Lee, Rima McLeod","doi":"10.4303/jnp/235533","DOIUrl":"https://doi.org/10.4303/jnp/235533","url":null,"abstract":"<p><p>Neuroimaging studies for persons in the National Collaborative Chicago-Based Congenital Toxoplasmosis Study (NCCCTS) with symptoms and signs referable to the spinal cord were reviewed. Three infants had symptomatic spinal cord lesions, another infant a Chiari malformation, and another infant a symptomatic peri-spinal cord lipoma. One patient had an unusual history of prolonged spinal cord symptoms presenting in middle age. Neuroimaging was used to establish her diagnosis and response to treatment. This 43 year-old woman with congenital toxoplasmosis developed progressive leg spasticity, weakness, numbness, difficulty walking, and decreased visual acuity and color vision without documented re-activation of her chorioretinal disease. At 52 years of age, spinal cord lesions in locations correlating with her symptoms and optic atrophy were diagnosed with 3 Tesla MRI scan. Treatment with pyrimethamine and sulfadiazine decreased her neurologic symptoms, improved her neurologic examination, and resolved her enhancing spinal cord lesions seen on MRI.</p>","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"3 2012","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3593714/pdf/nihms-367017.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31303093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Impact of HIV Coinfection on Cerebral Malaria Pathogenesis.","authors":"Sarah Hochman, Kami Kim","doi":"10.4303/jnp/235547","DOIUrl":"10.4303/jnp/235547","url":null,"abstract":"<p><p>HIV infection is widespread throughout the world and is especially prevalent in sub-Saharan Africa and Asia. Similarly, Plasmodium falciparum, the most common cause of severe malaria, affects large areas of sub-Saharan Africa, the Indian subcontinent, and Southeast Asia. Although initial studies suggested that HIV and malaria had independent impact upon patient outcomes, recent studies have indicated a more significant interaction. Clinical studies have shown that people infected with HIV have more frequent and severe episodes of malaria, and parameters of HIV disease progression worsen in individuals during acute malaria episodes. However, the effect of HIV on development of cerebral malaria, a manifestation of P. falciparum infection that is frequently fatal, has not been characterized. We review clinical and basic science studies pertaining to HIV and malaria coinfection and cerebral malaria in particular in order to highlight the likely role HIV plays in exacerbating cerebral malaria pathogenesis.</p>","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"3 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3336366/pdf/nihms369950.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40191934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrea A. D’Auria, J. Lin, P. Geiseler, Y. Qvarnstrom, Rebecca Bandea, S. Roy, R. Sriram, C. Paddock, S. Zaki, Gene H. Kim, G. Visvesvara
{"title":"Cutaneous Acanthamoebiasis with CNS Involvement Post- Transplantation: Implication for Differential Diagnosis of Skin Lesions in Immunocompromised Patients","authors":"Andrea A. D’Auria, J. Lin, P. Geiseler, Y. Qvarnstrom, Rebecca Bandea, S. Roy, R. Sriram, C. Paddock, S. Zaki, Gene H. Kim, G. Visvesvara","doi":"10.4303/JNP/N120801","DOIUrl":"https://doi.org/10.4303/JNP/N120801","url":null,"abstract":"We report a 62-year-old male who presented status post lung transplantation with subcutaneous nodules. One week later, he showed signs of altered mental status; brain imaging demonstrated mass effect in the cerebellum and meningoencephalitis. In spite of treatment with a broad range of antimicrobials, he died. A punch biopsy of the skin lesions showed a superficial and deep mixed inflammatory infiltrate admixed with large mononuclear cells. A diagnosis of cutaneous amoebiasis was made and the amoebae were identified as Acanthamoeba spp. based on immunofluorescent stains and PCR assays. Cutaneous Acanthamoebiasis is a rare infection in immunocompro- mised patients, particularly organ recipients. It is important that this entity is included in the differential diagnosis of immunocompromised patients who have cutaneous infections that are not responding to antibiotics. An early diagnosis is crucial since cutaneous Acanthamoebiasis can disseminate to the central nervous system and cause granulomatous amoebic encephalitis (GAE), which is usually fatal.","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"3 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71099539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neurologic Manifestations of Leishmania spp. Infection.","authors":"C. Petersen, M. Greenlee","doi":"10.4172/2314-7326.1000123","DOIUrl":"https://doi.org/10.4172/2314-7326.1000123","url":null,"abstract":"When listing common clinical signs of the spectra of Leishmania-derived diseases, neurologic malfunctions are not commonly included. Despite this, there are multiple reported instances both in human and veterinary medicine where neurologic manifestations, whether central or peripheral, are described. In this review, we describe neurologic manifestations seen during infection with Leishmania spp. with some discussion of the implicit effect of inflammation on the blood brain barrier in both medical and veterinary cases. Taken together, the material discussed here suggests that in patients from Leishmania-endemic areas, when observing neurologic symptoms, causation secondary to infection with Leishmania spp. should be highly considered.","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2011-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70879189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neurologic Manifestations of Leishmania spp. Infection.","authors":"Christine Anne Petersen, M Heather West Greenlee","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>When listing common clinical signs of the spectra of Leishmania-derived diseases, neurologic malfunctions are not commonly included. Despite this, there are multiple reported instances both in human and veterinary medicine where neurologic manifestations, whether central or peripheral, are described. In this review, we describe neurologic manifestations seen during infection with Leishmania spp. with some discussion of the implicit effect of inflammation on the blood brain barrier in both medical and veterinary cases. Taken together, the material discussed here suggests that in patients from Leishmania-endemic areas, when observing neurologic symptoms, causation secondary to infection with Leishmania spp. should be highly considered.</p>","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"2 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3110707/pdf/nihms298622.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29930936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laurie Rouger, Yan Sergerie, D. Arsenijevic, É. Paradis, G. Boivin, D. Richard
{"title":"Implication of Uncoupling Protein 2 in Immunity to Herpes Simplex Virus Type I in Resistant and Susceptible Mouse Strains","authors":"Laurie Rouger, Yan Sergerie, D. Arsenijevic, É. Paradis, G. Boivin, D. Richard","doi":"10.4303/JNP/N110101","DOIUrl":"https://doi.org/10.4303/JNP/N110101","url":null,"abstract":"The present results demonstrate resistance to HSV-1 in C57Bl6 mice is associated with differential temporal body weight and GSH changes, compared to susceptible 129Sv mouse strain. Strong brain viral load TK and TLR-2 induction in the brain precedes TNF-α, iNOS, IκBα and UCP2 expression in 129Sv mice. Interestingly, we observe that UCP2 brain expression differs: UCP2 is found in higher quantities in the mid and hind brain in susceptible mice and in the forebrain in resistant mice. In contrast with previous data, UCP2 KO mice did not show differences in terms of survival, inflammatory gene expression and neurodegeneration compared to their WT controls. UCP2 brain expression is therefore a marker of resistance/susceptibility to infection but does not play a role in viral load or survival. In conclusion, UCP2s role in host survival to infection may be pathogen specific and largely subordinate to the direct effect of the toxicity of changes in antioxidants on the infectious agent itself.","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"2 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71099409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Afonso, S. Mukaratirwa, K. Hajovska, B. Capece, C. Crist, E. Mondlane
{"title":"Prevalence and Morphological Characteristics of Taenia multiceps Cysts (Coenurus Cerebralis) from Abattoir-Slaughtered and Experimentally Infected Goats","authors":"S. Afonso, S. Mukaratirwa, K. Hajovska, B. Capece, C. Crist, E. Mondlane","doi":"10.4303/JNP/235532","DOIUrl":"https://doi.org/10.4303/JNP/235532","url":null,"abstract":"One hundred and forty nine indigenous goats slaughtered at the Tete municipal abattoir, Mozambique, and fifty seven goats experimentally infected with Taenia multiceps eggs were inspected to determine the prevalence, predilection sites and morphological characteristic of cysts and scoleces of T. multiceps. The experimentally infected goats of mixed sexes were divided into Group one (28 animals slaughtered at 10 weeks post-infection) and Group two (29 animals slaughtered at 22 weeks post-infection). Each animal was experimentally infected with 3000 eggs of T. multiceps recuperated from experimentally infected dogs. The prevalence of infection was 14.8% in the naturally infected goats, 78.6% for Group 1 and 82.8% for Group 2 of the experimentally infected goats. The muscle and subcutaneous tissues were the most common anatomic location of cysts in both the naturally and experimentally infected (Group 1 and 2) goats with a prevalence of 9.1%, 82% and 75% respectively and this was followed by the brain in the naturally infected (8.5%), and Group 2 (11.4%) and the heart and mesentery (4.5%) in Group 2. In the abattoir-slaughtered goats, animals with one cyst were more frequent in both muscular and subcutaneous tissues (73.3%) and brain (75%) and fewer animals were found to harbor two or more cysts.","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71099113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Néstor Cardona, Natalia Basto, B. Parra, A. Zea, C. Pardo, A. Bonelo, Jorge Enrique
{"title":"Detection of Toxoplasma DNA in the Peripheral Blood of HIV-Positive Patients with Neuro-opportunistic Infections by a Real-Time PCR Assay","authors":"Néstor Cardona, Natalia Basto, B. Parra, A. Zea, C. Pardo, A. Bonelo, Jorge Enrique","doi":"10.4303/JNP/N110402","DOIUrl":"https://doi.org/10.4303/JNP/N110402","url":null,"abstract":"We determine if peripheral blood sample could be used for diagnosis of cerebral toxoplasmosis by a real-time PCR assay and we analyzed the clinical and laboratory findings in 22 patients with confirmed cerebral toxoplasmosis compared to 27 patients with other neuro- opportunistic infections. We compared two gene targets (B1 and RE) in the Taqman-PCR real-time assay. Efficiency values were also calculated. We found that 18.8% (4/22) of cases with cerebral toxoplasmosis and 7.4% (2/27) of patients with other neuroinfections had positive results with the Taqman PCR assay. The mean number of parasites was 67.7 (SD 69.0) tachyzoites/mL in patients with cerebral toxoplasmosis and of 31.8 (SD 6.3) tachyzoites/mL in other neuroinfections. Clinical symptoms as headache were significantly less frequent and focal neurological symptoms were significantly more frequent in cerebral toxoplasmosis than in other neuroinfections. In our conditions, real- time PCR on peripheral blood samples was not useful for diagnosis of cerebral toxoplasmosis.","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":"2 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4303/JNP/N110402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71099529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Wei Zhang, Sandra K Halonen, Yan Fen Ma, Herbert B Tanowtiz, Louis M Weiss
{"title":"A Purification Method for Enrichment of the Toxoplasma gondii Cyst Wall.","authors":"Yi Wei Zhang, Sandra K Halonen, Yan Fen Ma, Herbert B Tanowtiz, Louis M Weiss","doi":"10.4303/jnp/N101001","DOIUrl":"https://doi.org/10.4303/jnp/N101001","url":null,"abstract":"<p><p>The tissue cyst wall of Toxoplasma gondii is a stage-specific structure that is produced by modification of the bradyzoite-containing parasitophorous vacuole. It is a limiting membrane structure and is critically important for cyst survival and transmission of infection. Studies on the structure and function of the cyst wall should provide new therapeutic strategies for the elimination or prevention of latency during T. gondii infection. The membrane proteins of the T. gondii cyst are an important target for studies of the biochemical and immunological function(s) of the cyst. However, the components of the cyst membrane have been poorly characterized due to the difficulty of purification of these membrane proteins. We developed a lectin DBA (Dolichos biflorus) coated magnetic bead isolation method to isolate T. gondii cyst wall proteins. Our data suggests that this method can isolate cyst wall proteins from both in vitro cell culture or in vivo mouse brain derived tissue cysts. Antibodies to these isolated protein preparations were shown to localize to the cyst wall.</p>","PeriodicalId":73863,"journal":{"name":"Journal of neuroparasitology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3115730/pdf/nihms287853.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30250049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}