We have studied immune mechanisms responsible for control of acute Giardia lamblia and Giardia muris infections in adult mice. Association of chronic G. lamblia infection with hypogammaglobulinemia and experimental infections of mice with G. muris have led to the hypothesis that antibodies are required to control these infections. We directly tested this hypothesis by infecting B-cell-deficient...

Epidemic Giardia lamblia infection has usually been associated with contaminated water. In this paper, five proved and one presumed case of G. lamblia infection among homosexual men are reported. The sequential onset of their clinical illnesses and their sexual interrelationships suggest that this outbreak could have been caused by the direct faecal-oral transmission of G. lamblia. Other parasi...

Nested PCR was performed on individually isolated Giardia lamblia cysts in replicates of 50 for sets of 1, 2, 3, 4, 5, 7, and 10 cysts. Amplification ranged from 80% for 1 cyst to 100% for 10 cysts. The results suggest that nested PCR is well adapted for G. lamblia single-cyst detection.

The secretory immune response in humans infected with Giardia lamblia was studied by using saliva samples and an 8-kDa antigen capable of binding fatty acids. This antigen was not recognized by saliva samples from healthy individuals. The antigen may be useful in diagnostic studies of G. lamblia infection.

The investigation were performed on children with Giardia lamblia infection, diagnosed on the basis of positive stool tests for Giardia antigen (Elisa) or by microscopical detection of trophozoites in duodenal fluid. In duodenal biopsies morphological studies and immunohistochemical reaction for inducible nitric oxide synthase (iNOS) were performed. The control group was made up of duodenal tis...

A prominent feature of transcription in Giardia lamblia is the abundant production of sterile antisense transcripts (Elmendorf et al. The abundance of sterile transcripts in Giardia lamblia. Nucleic Acids., 29, 4674-4683). Here, we use a computational biology analysis of SAGE data to assess the abundance and distribution of sense and antisense messages in the parasite genome. Sterile antisense ...

Introduction Ask the average outdoors person about Giardia lamblia, and they have certainly heard about it. Almost always, however, they are considerably misinformed about both the organism’s significance in wilderness water and the seriousness of the disease, giardiasis, if contracted. The amount of information easily found on the subject is voluminous. Unfortunately, almost all of it is flawe...

conclusions we concluded that ozonized organic extra-virgin olive oil was a growth inhibitor of giardia cysts, and concerning its compatibility with a biological system, it is recommended for further clinical trials. objectives this study was conducted to evaluate the effect of ozonized organic extra-virgin olive oil on the cyst of g. lamblia. methods the olive oil was ozonized based on interna...

We report a case of a 70-year-old man with acute acalculous cholecystitis caused by Giardia lamblia. Contrast-enhanced computed tomography (CT) showed distention of the gallbladder due to a pericholecystic abscess without gallstones. Magnetic resonance cholangiopancreatography and drip infusion cholecystocholangiography-CT demonstrated a stricture of the hilar bile duct and cystic duct obstruct...

BACKGROUND Giardia lamblia is a common intestinal parasite that has been reported all over the world. OBJECTIVES This study was conducted to evaluate the effect of ozonized organic extra-virgin olive oil on the cyst of G. lamblia. METHODS The olive oil was ozonized based on international standards and confirmed by the world health organization (WHO) at various times in a generator. The ozon...