BACKGROUND Neurocysticercosis is the most common central nervous system infection in developing countries. A wide array of clinical manifestations, ranging from asymptomatic to severe neurological symptoms, is observed in patients diagnosed with neurocysticercosis, depending on the number of lesions, cyst location, cyst stage, parasite genotype, and host immunity. CASE REPORT We report the case of a 25-year-old Burmese man who presented with focal seizure and secondary generalized tonic-clonic seizure.
View Article and Find Full Text PDFTwo female and one male adult hookworms were recovered from a female patient in Thailand. Based on gross and microscopic morphology, the three hookworms are members of Necator americanus. Phylogenetic reconstruction based on partial NADH dehydrogenase subunit 1 (nad1) mitochondrial gene sequences shows that these hookworms belong to the same genetic lineage as N.
View Article and Find Full Text PDFMembers of the genus Anisakis are parasitic nematodes of the family Anisakidae. They are potential zoonotic parasites, causing anisakiasis in humans who consume raw or undercooked seafood (fish or squid) infected with the larvae of this nematode. In the present study, anisakid nematodes collected from the marine fish Priacanthus tayenus (Purplespotted big-eye) caught from the Gulf of Thailand were examined morphologically and characterized genetically by DNA sequence analysis.
View Article and Find Full Text PDFA 43-year-old male residing in Prachin Buri Province, Thailand, was admitted to the Siriraj University Hospital of Mahidol University, Thailand, in July 2014 with right eyelid swelling and serpiginous lesion for three weeks. A nematode specimen was accidentally recovered from his upper right eyelid area. The body of the worm was cylindrical and measured 11.
View Article and Find Full Text PDFHuman gnathostomiasis is a food-borne zoonosis caused by a tissue nematode of the genus Gnathostoma. The disease is highly endemic in Asia, including Thailand. The freshwater swamp eel (Monopterus albus), the second intermediate host of the gnathostome nematode, has an important role in transmitting the infection in Thailand.
View Article and Find Full Text PDFAcanthamoeba is a free-living opportunistic protozoan parasite that is found in diverse environments. It can cause keratitis, mostly related to inappropriate use of contact lenses, as well as life threatening diseases including encephalitis, disseminated sinusitis, and skin ulcers. This study investigated morphological changes and fine structures of the cyst form of Acanthamoeba spp.
View Article and Find Full Text PDFClin Infect Dis
April 2013
Southeast Asian J Trop Med Public Health
March 2012
This study was to demonstrate the surface anatomy of the third stage larvae of Anisakis simplex in marine fish using stereo and scanning electron microscopes (SEM). The round worm is slender, elongated and of cylindrically shaped. The head of this worm is a globular structure.
View Article and Find Full Text PDFSitus inversus totalis is the complete reversal of positions of major thoracic and abdominal organs. The present study reports the reversed structures and histology of the epithelium of bronchus of a female cadaver 87 years of age, which was found during the dissection in a medical course of gross anatomy. Opening the thoracic cage, the apex of heart was projected to the right side (dextrocardia) while the right and left lungs were alternated.
View Article and Find Full Text PDFSoutheast Asian J Trop Med Public Health
July 2010
The present study was conducted to investigate the morphological and structural changes of Acanthamoeba cysts after being treated with various concentrations of Pouzolzia indica methanolic extract fraction 3 (methanol eluted) and Virkon solution. Changes in the Acanthamoeba cysts were detected by light microscopy, scanning electron microscopy and transmission electron microscopy. The results show Acanthamoeba cysts were killed by Pouzolzia indica methanolic extract fraction 3 at a concentration of 1:8 and by Virkon solution at a concentration of 0.
View Article and Find Full Text PDFObjective: To study the morphological characteristics of genus Acanthamoeba which is an opportunistic organism associated with wearing contact lenses that the biofilm phenomenon in contact lens cases contained Acanthamoeba causing keratitis by conventional culture technique.
Material And Method: A total of 150 contact lens cases were biofilm scraped in March till September 2007, at an institution in Nakhornpathom Province, Thailand. The 'gold standard' culture technique was used for the excystation growth development observation.
Objective: To compare the minimal cysticidal concentration (MCC) between Pouzolzia indica methanolic extract fraction 2 and Povidone-lodine (PVP-I) on the Acanthamoeba cyst and to illustrate the morphological changes of the cyst after being treated by light and electron microscopies.
Material And Method: Acanthamoeba spp were isolated from patients with Acanthamoeba keratitis and cultured on a non-nutrient agar plate (NNA) seeded with heat killed Escherichia coli (NNA-E.coli) at 37 degrees C for 7 days, adjusted to a final concentration of 10(4) cysts/ml.
A method employing loop-mediated isothermal amplification (LAMP) of 18S ribosomal RNA gene was developed to detect Acanthamoeba in contact lens cases. A prevalence of 7% (10/150) was detected, with 100% sensitivity and 100% specificity when compared with the standard culture technique. Using visual inspection of turbidity a minimum of 10pg of Acanthamoeba DNA could be detected, 10 times more sensitive than quantitative PCR employing two of the LAMP primers.
View Article and Find Full Text PDFComparison of an artificial, whole-blood membrane feeding procedure was performed by feeding Aedes aegypti (Liverpool strain) on the blood of patients infected with Wuchereria bancrofti microfilariae with the use of 3 types of membranes produced from chicken and mouse skin and swine intestine. Direct feeding of Ae. aegypti on the skin of infected human patients served as control.
View Article and Find Full Text PDFSoutheast Asian J Trop Med Public Health
September 2005
The gravid uterus with zygotes and microfilariae in utero of Brugia pahangi, a rich source of antigen as revealed by a recent immunofluorescent technique, were studied ultrastructurally. The epithelial cells of uterus show ultrastructural features of synthetically active cells. Their secretions may provide nutrients for the egg in utero.
View Article and Find Full Text PDFOf the sera obtained from 18 patients with ocular diseases comprising ocular larva migrans (OLM), Toxoplasma gondii, Mycobacterium chelonei, Pythium insidiosum bacteria and tumour, 3 sera were positive for Toxocara antibody at the titre over 1/1600 ELISA. All 3 of these sera came from males with unilateral grayish fundi. We demonstrated the value of the direct immunofluorescent assay (DIFA) on vitreous specimens from 7 cases of Toxoplasma retinitis.
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