Woman's Death From Brain-Killing Amoeba Prompts Awareness Campaign

A California mother now wants to spread ???amoeba awareness??? after her newlywed daughter died last October from brain-killing amoeba called Balamuthia.
Source: ABC News: Health - Category: Consumer Health News Tags: Health Source Type: news

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Publication date: Available online 18 October 2019Source: Journal of the Formosan Medical AssociationAuthor(s): Teck Boon Tew, Hsiao-Sang Chu, Yu-Chih Hou, Wei-Li Chen, I-Jong Wang, Fung-Rong HuPurposeTo study the surgical outcome of therapeutic penetrating keratoplasty (TPK) for medically uncontrolled microbial keratitis at a tertiary hospital in Taiwan over a 14-year period.MethodsThis is a retrospective case series study. Patients who underwent TPK at National Taiwan University Hospital in 2001–2014 were included. Patients were divided into 3 diagnostic groups: bacterial keratitis, fungal keratitis, and acanthamoe...
Source: Journal of the Formosan Medical Association - Category: General Medicine Source Type: research
It was previously determined that the type II secretion system (T2SS) promotes the ability of Legionella pneumophila to grow in coculture with amoebae. Here, we discerned the stage of intracellular infection that is potentiated by comparing the wild-type and T2SS mutant legionellae for their capacity to parasitize Acanthamoeba castellanii. Whereas the mutant behaved normally for entry into the host cells and subsequent evasion of degradative lysosomes, it was impaired in the ability to replicate, with that defect being first evident at approximately 9 h postentry. The replication defect was initially documented in three wa...
Source: Infection and Immunity - Category: Infectious Diseases Authors: Tags: Cellular Microbiology: Pathogen-Host Cell Molecular Interactions Source Type: research
CONCLUSIONS: The scarcity of the studies trying to understand the compatibility as well as the exact mechanisms by which NDDS might be serving to enter the CNS infected by parasites opens new possibilities for further exploratory projects. There is an urgent need for new investments and motivations in the area of nanotechnology applied to the control of parasitic infectious diseases worldwide. PMID: 31612822 [PubMed - as supplied by publisher]
Source: Current Pharmaceutical Design - Category: Drugs & Pharmacology Authors: Tags: Curr Pharm Des Source Type: research
Pathogenic protozoans use extracellular vesicles (EVs) for intercellular communication and host manipulation. Acanthamoeba castellanii is a free-living protozoan that may cause severe keratitis and fatal granulom...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
AbstractPurposeTo evaluate the in vitro efficacy of three commercial ophthalmic solutions (gatifloxacin, levofloxacin and gentamicin) against cysts ofAcanthamoeba species.DesignExperimental studyMethodsAcanthamoeba cysts belonging to genotypes T3, T4 and T5 were incubated with three ophthalmic solutions for different periods of time; 1, 24, 48 and 72  h at 37 °C. After incubation, treated cysts were stained with trypan blue and counted to express the percent of growth inhibition. Additionally, the viability of treated cysts was assessed by culturing them in PYG medium at 30 °C for 72 h as well a...
Source: International Ophthalmology - Category: Opthalmology Source Type: research
This patient with recurrent unilateral ocular complaints, a lid lesion, and keratitis unresponsive to numerous medications as well as a negative work-up for infectious agents leaves us with numerous diagnostic possibilities. These include: viral shedding from the lid lesion as with molluscum, eyelid deformity with corneal exposure, limbal stem cell deficiency of uncertain etiology, ocular surface dysplasia or neoplasia, superior limbic keratoconjunctivitis, vernal keratoconjunctivitis, herpes group viruses, Acanthamoeba keratitis, eyelid foreign body, medicamentosa, and many others.
Source: Journal of Cataract and Refractive Surgery - Category: Opthalmology Authors: Tags: Consultation section: Cataract Source Type: research
Eye, Published online: 25 September 2019; doi:10.1038/s41433-019-0589-6Acanthamoeba keratitis in Australia: demographics, associated factors, presentation and outcomes: a 15-year case review
Source: Eye - Category: Opthalmology Authors: Source Type: research
Eye, Published online: 25 September 2019; doi:10.1038/s41433-019-0597-6Repurposing drugs: Ca2+ ion dependency that can be exploited to treat keratitis caused by Acanthamoeba castellanii
Source: Eye - Category: Opthalmology Authors: Source Type: research
Authors: Bunsuwansakul C, Mahboob T, Hounkong K, Laohaprapanon S, Chitapornpan S, Jawjit S, Yasiri A, Barusrux S, Bunluepuech K, Sawangjaroen N, Salibay CC, Kaewjai C, Pereira ML, Nissapatorn V Abstract Acanthamoeba, one of free-living amoebae (FLA), remains a high risk of direct contact with this protozoan parasite which is ubiquitous in nature and man-made environment. This pathogenic FLA can cause sight-threatening amoebic keratitis (AK) and fatal granulomatous amoebic encephalitis (GAE) though these cases may not commonly be reported in our clinical settings. Acanthamoeba has been detected from different enviro...
Source: Korean Journal of Parasitology - Category: Parasitology Tags: Korean J Parasitol Source Type: research
To report the clinical and microbiological features of Acanthamoeba keratitis (AK) related to contact lens use in a tertiary hospital in China.
Source: BMC Ophthalmology - Category: Opthalmology Authors: Tags: Research article Source Type: research
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