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Abdi J. Genotyping of giardia lamblia and its relationship to clinical sign in patients with giardiasis in Ilam Province. Journal title 2023; 5 (4)
URL: http://newresearch.medilam.ac.ir/article-1-2150-en.html
URL: http://newresearch.medilam.ac.ir/article-1-2150-en.html
Clinical Microbiology Research Center, Ilam University of Medical sciences, Ilam, Iran
Abstract: (721 Views)
Giardia lamblia has proved to be the most common intestinal protozoan parasite in humans that
causes giardiasis. Given the high mutations in the genome of this parasite, the present study was
conducted to determine the prevalence of Giardia lamblia subtypes and their relationship with clinical
symptoms in patients who appear to have giardiasis. In 69 stool specimens with an appropriate
number of giardia cysts, the DNA was first purified, and the genotype was then determined based on
the glutamate dehydrogenase (gdh) gene sequence using PCR-RFLP. Data were collected on the
clinical symptoms of the patients through a questionnaire, and their relationship with molecular
results was studied. Four samples (5.8%) were found to be of subtype AI, 51 (73.9%) of subtype AII
and 14 (20.3 %) of subtype BIII. No BIV subtype was found in the present study. A correlation was
observed between Giardia lamblia genotypes (AI, AII and BIII) and abdominal pain. All of the people
11/30/22, 3:08 PM Giardia Lamblia Subtypes and Their Relationship with Clinical Symptoms in Patients with Giardiasis - PubMed
https://pubmed.ncbi.nlm.nih.gov/30868967/ 2/2
(100%) who had the AI genotype (i.e. the zoonosis subtype) had been losing weight. There was a
significant correlation between weight loss and the AI subtype. All of the people (100%) infected with
the BIII genotype experienced diarrhea, and this genotype was found to be associated with diarrhea.
The present study found abdominal pain to be the most common symptom of giardiasis in Ilam
province. Moreover, humans were found to be the main reservoir for giardia lamblia, although
zoonosis subtypes such as AI and BIII still exist in the region and pose a risk for a giardiasis epidemic.
causes giardiasis. Given the high mutations in the genome of this parasite, the present study was
conducted to determine the prevalence of Giardia lamblia subtypes and their relationship with clinical
symptoms in patients who appear to have giardiasis. In 69 stool specimens with an appropriate
number of giardia cysts, the DNA was first purified, and the genotype was then determined based on
the glutamate dehydrogenase (gdh) gene sequence using PCR-RFLP. Data were collected on the
clinical symptoms of the patients through a questionnaire, and their relationship with molecular
results was studied. Four samples (5.8%) were found to be of subtype AI, 51 (73.9%) of subtype AII
and 14 (20.3 %) of subtype BIII. No BIV subtype was found in the present study. A correlation was
observed between Giardia lamblia genotypes (AI, AII and BIII) and abdominal pain. All of the people
11/30/22, 3:08 PM Giardia Lamblia Subtypes and Their Relationship with Clinical Symptoms in Patients with Giardiasis - PubMed
https://pubmed.ncbi.nlm.nih.gov/30868967/ 2/2
(100%) who had the AI genotype (i.e. the zoonosis subtype) had been losing weight. There was a
significant correlation between weight loss and the AI subtype. All of the people (100%) infected with
the BIII genotype experienced diarrhea, and this genotype was found to be associated with diarrhea.
The present study found abdominal pain to be the most common symptom of giardiasis in Ilam
province. Moreover, humans were found to be the main reservoir for giardia lamblia, although
zoonosis subtypes such as AI and BIII still exist in the region and pose a risk for a giardiasis epidemic.
: Cross sectional |
Received: 2013/04/30 | Accepted: 2013/07/10 | Published: 2023/03/1
Received: 2013/04/30 | Accepted: 2013/07/10 | Published: 2023/03/1
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