Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “INTESTINAL PARASITES”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 487 records · Page 27Linked to original sources
PubMed1991

Intestinal parasitic infections in schoolchildren of Abha (Asir), Saudi Arabia.

Stool specimens from 1282 children between the age of 5 and 13 years attending 10 primary schools for boys in the city of Abha, southwestern Saudi Arabia, were examined for the presence of intestinal parasites. Of these, 313, (24.4%) were found infected with one or more species of 11 intestinal protozoa and helminths. The most common pathogenic protozoa being Giardia lamblia (10.9%) followed by Entamoeba histolytica (4.1%). The nonpathogenic protozoan, Entamoeba coli had the highest prevalence rate (11.3%) in the children's stools. Hymenolepis nana was the commonest intestinal helminth (3.0%). Other intestinal helminths, including Ascaris lumbricoides, Trichuris trichiura. Schistosoma mansoni, Dicrocoelium dendriticum were detected to a lesser extent. The distribution of the common intestinal infections among the children surveyed were also analysed according to age, nationality and multiplicity of infection. Prevalence of E. histolytica was found to increase with age whereas Giardia infections were less common among older children. This pair of parasite species were strongly associated. Yemeni children had consistently the highest prevalence of infection with protozoa and helminths, followed by Saudi and non-Saudi children.

Age Factors↗
PubMed2005

Blastocystis hominis and other intestinal parasites in a community of Pitanga City, Paraná State, Brazil.

The objective was to estimate the prevalence of Blastocystis hominis, to evaluate the effectiveness of different techniques for its diagnosis as well as to estimate the prevalence of other intestinal parasites in the community of Campo Verde, a district of Pitanga. The work was carried out from August to October 2004. Samples of feces from children and adults were collected and submitted to the techniques of direct wet mount, flotation in zinc sulphate solution, tube sedimentation, sedimentation in formalin-ether and staining by Kinyoun and iron hematoxylin methods. From 181 studied individuals, 128 (70.7%) showed protozoa and/or helminths in stool samples. The most prevalent species were Endolimax nana (33.7%); B. hominis (26.5%); Giardia lamblia (18.2%); Entamoeba coli (17.1%); Ascaris lumbricoides (16.6%); Iodamoeba bütschlii (9.4%); and ancylostomatidae (7.7%). B. hominis was only identified by the techniques of direct wet mount, sedimentation in formalin-ether and staining by iron hematoxylin, though the latter was less sensitive than the other methods. The high frequency of B. hominis demonstrated by this study indicates the need to include laboratory techniques that enable identification of the parasite on a routine basis.

Adolescent↗
PubMedDate not supplied

[Water and intestinal parasitic diseases].

The paper presents data on the rates of Lamblia cyst dissemination of surface water sources in foreign countries, the Russian Federation, Moscow, and the Moscow Region. It shows a role of drinking water in the spread of intestinal parasitic diseases. In accordance with parasitological parameters, specific data on improvement of methodological control of water quality are presented. The dosages of ultraviolet radiation are given in relation to water decontamination of parasitic disease germs.

Animals↗
PubMed2006

[Investigation of intestinal parasites in residents of the Kayseri Karpuzsekisi basin].

In this study, we collected stool and cellophane tape samples from residents in four villages located in the Kayseri-Karpuzsekisi basin in order to investigate the distribution of intestinal parasites. A total of 240 samples collected from Hanyeri (40), Sariküklü (20), Dokuzpinar (80) and Karpuzsekisi (120) were investigated. The parasites detected were as follows: Blastocystis hominis, 82 (34.16%); Enterobius vermicularis, 37 (15.41%); Entamoeba coli 26, (10.83%); Entamoeba hartmanni, 10 (4.16%); Giardia intestinalis, 7 (2.91%); Endolimax nana, 5 (2.08%); Entamoeba histolytica/E. dispar, 4 (1.66%); and Taenia saginata, 1 (0.41%).

Amebiasis↗
PubMedDate not supplied

[Prevalence and intensity of infection by intestinal parasites in school-aged children in the City of Salvador (Bahia, Brazil)].

As part of a major study to evaluate the relationship between environmental changes and occurrence of the infection, prevalence and intensity of infection by intestinal parasites was studied in a sample of school children aged 7 to 14 years living in the City of Salvador. The prevalence of infection by at least one species of protozoa or helminth was 66.1%. Prevalence of infection by helminths increased with age. For all helminth species male children presented the highest prevalence.

Adolescent↗
PubMed1982

Intestinal parasitic infections of men in four regions of rural Kenya.

Faecal samples were obtained from 906 men living in four different regions of rural Kenya: the cool Highlands, the humid coastal lowlands, the equatorial Lake Victoria basin and the arid marginal highlands. The prevalence of intestinal parasitic infections is reported and compared, contrasted and discussed in terms of the typical environmental conditions in each region. Almost 70% of men appeared to be infected with intestinal helminths; hookworm was most common. The regional prevalence of hookworm infections appeared to be related to relative humidity.

Environment↗
PubMed1992

Guanine nucleotide-binding proteins in the intestinal parasite Giardia lamblia. Isolation of a gene encoding an approximately 20-kDa ADP-ribosylation factor.

Giardia lamblia is a protozoan intestinal parasite that has characteristics of both eukaryotes and prokaryotes. To determine whether genes for guanine nucleotide-binding proteins are present in Giardia, genomic DNA and cDNA libraries were screened by polymerase chain reaction and by hybridization with mixed oligonucleotide probes complementary to sequences encoding conserved GTP-binding domains. A gene with a high degree of sequence identity with mammalian ADP-ribosylation factors (ARFs), believed to be important in vesicular transport, was identified. The Giardia ARF gene had a 573-base open reading frame encoding 191 amino acids which are 63-70% identical with known mammalian and yeast ARFs. Sequence conservation among ARFs was greatest in putative GTP-binding domains. A single ARF mRNA species of approximately 750 bases was found in two different Giardia isolates. Primer extension and RNA sequencing of the Giardia ARF transcript revealed a short (6-base) 5'-untranslated region similar in size to those found in other Giardia transcripts. Giardia extracts contained ARF activity, as shown by stimulation of cholera toxin-catalyzed ADP-ribosylation and a Giardia ARF expressed in Escherichia coli as a fusion protein likewise exhibited biochemical activity. Its presence in Giardia is consistent with the view that ARF emerged before the divergence of this protozoan from other eukaryotes (approximately 1.5 billion years ago), and that an ARF-like protein may have been the ancestor of several other classes of signal-transducing guanine nucleotide-binding proteins, including the alpha subunits of the heterotrimeric G proteins.

ADP-Ribosylation Factors↗
PubMedDate not supplied

Intestinal parasites in Iaualapiti Indians from Xingu Park, Mato Grosso, Brazil.

Brine flotation and gravity sedimentation coproscopical examinations were performed in stool samples from 69 of the 147 Iaualapiti Indians of the Xingu Park, Mato Grosso State, Brazil. Intestinal parasites were present in 89.9% of the population examined. High rates of prevalence were found for some parasite species: Ancylostomidae, 82.6%; Enterobius vermicularis, 26.1%; Ascaris lumbricoides, 20.3%; and Entamoeba coli, 68.1%. Infection by Trichuris trichiura, Schistosoma mansoni, Taenia spp. and Hymenolepis nana was not detected. Helminth's prevalence in children aged one year or less was comparatively low (33.3%). Quantitative coproscopy was done in positive samples for Ascaris and Ancylostomidae and the results expressed in eggs per gram of feces (EPG). Quantitative results revealed that worm burdens are very low and overdispersed in this Indian tribe, a previously unreported fact.

Adolescent↗
PubMed2006

Prevalence of intestinal parasites including microsporidia in human immunodeficiency virus-infected adults in Cameroon: a cross-sectional study.

To assess the prevalence of intestinal parasites in a cohort of human immunodeficiency virus (HIV)-infected adults in Cameroon, a cross-sectional study was conducted. Detection of parasites was performed in 181 stool samples from 154 HIV-infected patients with a mean CD4 cell count of 238 cells/mm(3). Only 35 patients (22%) were receiving antiretroviral therapy at the time of stool sampling, and 46 (29%) had diarrhea. Opportunistic protozoa were found in 15 patients (9.7%), 8 of whom (53%) had diarrhea. Enterocytozoon bieneusi was found in eight patients, C. parvum in six patients, and Isospora belli in three patients. All E. bieneusi isolates tested belonged to the same genotype. The prevalence of opportunistic protozoa among patients with CD4 cell counts less than 50/mm(3) was 32%.

Adult↗
PubMed2005

Prevalence of intestinal parasites among members of the public in Kuala Lumpur, Malaysia.

A total of 246 stool samples were collected from the public who participated in a Medical Fair held at the University Malaya Medical Center. The stools were examined for intestinal parasites using the formalin-ether concentration technique. The overall infection rate was 6.9% (17 out of 246), with Trichuris trichiura being the most common parasite (4.5%), followed by Ascaris lumbricoides (0.8%), Clonorchis sinensis (0.8%), hookworm (0.4%), and Entamoeba histolytica (0.4%). None of these participants showed any clinical symptoms. The highest infection rate was among the Chinese 7.7% (13 out of 169), followed by the Malays 7.0% (3 out of 43) and Indians 3.3% (1 out of 30). The highest infection rate was in the age group 16-30 years, which was 9% (6 out of 67). The two cases of clonorchiasis were from two Chinese women aged 28 and 66 years. The 28-year-old Chinese woman was born in Malaysia and had never left the country, while the older woman was also born in Malaysia but had visited Hong Kong as a tourist on two occasions. Both enjoyed eating raw fresh water fish with porridge.

Adolescent↗
PubMedDate not supplied

Intestinal parasites in University of Dacca students.

Nine hundred and thirty three students of Dacca University were examined: mean haemoglobin levels were 80.5 per cent for men and 70.0 per cent for women. Five hundred and thirty three (57.3%) of the students had single or multiple intestinal parasitic infections, of which Ascaris lumbricoides (366), Entamoeba histolytica (113) and Trichuris trichiura (99) were the commonest. It is suggested that chronic nutritional deficiencies are compounded by these parasites, leading to low weights, and low haemoglobins.

Adolescent↗
PubMed1978

Bronchial asthma associated with intestinal parasites.

Fifty patients with bronchial asthma and 50 normal controls were studied in Hacettepe University Medical Center. Forty per cent of the patients with bronchial asthma and 14% of the controls had ascarides in the stool examinations. The significant difference in these two groups indicates that intestinal parasites, should be looked for in the patients with bronchial asthma.

Adolescent↗
PubMed2004

Intestinal parasites and intra familial incidence in a low socio-economic area of Chandigarh (North India).

A total of 550 stool samples were collected from a low socio economic population of Chandigarh (North India) and examined macroscopically and microscopically, to determine the prevalence of intestinal parasitic infections and their familial incidence. The overall prevalence rate was 19.3%. Ascaris lumbricoides and Giardia lamblia were the commonest, affecting 51 (9.3%) and 33 (6.0%), respectively. In 17 (22.7%) families the same parasite was observed to infect multiple family members, which included A.lumbricoides (in 9 families), G. lamblia (in 7 families) and H. nana (in 1 family). The results of present study indicate that there is a high prevalence of parasitic infection in the community where personal hygiene and sanitary conditions are poor and may be one of the contributing factors for transmission within the families. Intervention strategies including health education program should be designed and implemented to control parasitic infections.

Adolescent↗