scholarly journals Evaluation of intestinal parasites in patients with chronic spontaneous urticaria in a territory hospital in Turkey

2019 ◽  
Vol 13 (10) ◽  
pp. 927-932
Author(s):  
Sedat Vezir ◽  
Filiz Kaya ◽  
Emine Vezir ◽  
Nermin Karaosmanoğlu ◽  
Ali Kudret Adiloğlu
Keyword(s):  
Patient Group ◽  
Chronic Urticaria ◽  
Intestinal Parasites ◽  
Giardia Duodenalis ◽  
Adult Patients ◽  
Chronic Spontaneous Urticaria ◽  
Parasitic Infections ◽  
Cutaneous Manifestations ◽  
Blastocystis Sp ◽  
Stool Samples

Introduction: Chronic spontaneous urticaria (CSU) which develops without a known stimulation is defined as the occurrence of spontaneous wheals, angioedema or both for longer than six weeks. Infections, autoimmunity, food intolerance and internal parasitic infections are supposed to be underlying causes of CSU. The aim of this study was to evaluate the intestinal parasites in children and adult patients diagnosed as CSU, to determine the frequency of parasites in chronic urticaria, and to compare these patients with healthy demographic control groups. Methodology: Seventy six children and 38 adult patients with CSU were examined in terms of parasitic infections. The patients whom parasites were detected received anti-parasitic therapy and the improvements in CSU symptoms were evaluated. Stool samples were examined with direct microscopic examination (native-lugol), stool concentration and trichrome staining methods. Results: In pediatric patient group, 18.4% (n = 14) of the stool samples were positive for Blastocystis sp., 2.6% (n = 2), Dientamoeba fragilis and 1.3% (n = 1), Giardia duodenalis. In adult patient group, Blastocystis sp. was detected in 18.4% (n = 7) of the stool samples. Anti-parasitic therapy yielded substantial improvement in urticaria symptoms in 57.1% of pediatric and 60.0% of adult patients. Conclusions: Blastocystis sp. and D. fragilis may play a role in chronic urticaria which seriously disrupts the patient's quality of life. Parasitic infections should not be neglected in patients with cutaneous manifestations.

Prevalence of Intestinal Parasites among Patients with Chronic Urticaria in Northern Iran

2020 ◽  
Vol 20 ◽  
Author(s):  
Fakhar Mahdi ◽  
Ghaffari Javad ◽  
Dabbaghzadeh Abbas ◽  
Yazdani Charati Jamshid ◽  
Ghaffari Bahman ◽  
...  
Keyword(s):  
Chronic Urticaria ◽  
Rural Areas ◽  
Urban Areas ◽  
Healthy Subjects ◽  
Intestinal Parasites ◽  
Parasitic Infections ◽  
Control Groups ◽  
Northern Iran ◽  
Stool Samples ◽  
And Control

Background: Chronic urticaria (CU) has a range of clinical demonstrations and causes. Parasitic infections are mentioned as one of the main causes of the CU. Objectives: The aim of this study was to investigate the prevalence of intestinal parasites in patients with CU compared with healthy subjects. Methods: A total of 169 cases and 210 controls were included in this study. Ages ranged from 1 to 77 years old. Results: Of the 379 individuals examined here, 208 were from urban areas and 171 from rural areas. Three stool samples were taken from each patient in three consecutive days. Based on parasitological tests, 7 (4.1%) cases from 169 patients with CU and 6 (2.9%) cases from 210 non- CU group individuals were positive for intestinal parasites. Conclusion: The prevalence of various parasites between case and control groups was not significant.

scholarly journals Parasitic infections in Swiss children: Are we overtesting?

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Corinne Légeret ◽  
Céline Rüttimann ◽  
Hans Fankhauser ◽  
Henrik Köhler
Keyword(s):  
Retrospective Study ◽  
Positive Result ◽  
Pediatric Patients ◽  
Intestinal Parasites ◽  
Gastrointestinal Symptoms ◽  
International Travel ◽  
Parasitic Infections ◽  
Stool Samples ◽  
Stool Specimens

Abstract Background A wide variation of causes can lead to gastrointestinal symptoms in children- an infection with parasites is one of them. The expansion of international travel might lead to an increase in testing children for a correspondent infection. Currently there are no guidelines available, which patients should be tested for a possible parasitical infection. The aim of the study was to characterize Swiss children suffering from intestinal parasites, in order to provide more knowledge for the clinician who should be tested. Methods This is a retrospective study of Swiss pediatric patients, whose stools have been tested for parasites and helminths. Results A total of 1855 stool samples, belonging to 572 different children with an average age of 7.9 years, were tested within a 10-year period. The prevalence of a positive result was 4.2%, of which all were positive for Blastocystis, and 12.5% had a co-infection with Endolimax nana. Conclusion Immigrants, immune compromised children with diarrhea and pediatric patients with bloody or protracted diarrhea should have 2 different stool specimens examined for a possible parasitical infection.

scholarly journals Molecular Characterization of Giardia duodenalis in Children and Adults Sampled in Algeria

2020 ◽  
Vol 9 (1) ◽  
pp. 54
Author(s):  
Salem Belkessa ◽  
Daniel Thomas-Lopez ◽  
Karim Houali ◽  
Farida Ghalmi ◽  
Christen Rune Stensvold
Keyword(s):  
Real Time ◽  
Molecular Characterization ◽  
Real Time Pcr ◽  
Intestinal Parasites ◽  
Giardia Duodenalis ◽  
Specific Pcr ◽  
Stool Samples ◽  
Pcr Targeting ◽  
Assemblage B

The molecular epidemiology of giardiasis in Africa remains unclear. A study was carried out across four hospitals in Algeria. A total of 119 fecal samples from 55 children, 37 adults, and 27 individuals of undetermined age, all scored positive for intestinal parasites by microscopy, and were screened by real-time PCR for Giardia. Molecular characterization of Giardia was performed by assemblage-specific PCR and PCR targeting the triose phosphate isomerase gene (tpi). Of the 119 samples, 80 (67%) were Giardia-positive by real-time PCR. For 48 moderately-highly real-time PCR-positive samples, tpi genotyping assigned 22 samples to Assemblage A and 26 to Assemblage B. Contrary to Assemblage A, Assemblage B exhibited substantial genetic diversity and allelic heterozygosity. Assemblage-specific PCR proved to be specific for discriminating Assemblage A or B but not as sensitive as tpi genotyping. We confirmed that real-time PCR is more sensitive than microscopy for detecting Giardia in stool samples and that robust amplification and sequencing of the tpi gene is feasible when moderate-to-strongly real-time PCR-positive samples are used. This study is one of the few performed in Africa providing genotyping data on Giardia infections in humans. Both assemblages A and B were commonly seen and not associated with specific sociodemographic data.

scholarly journals Prevalence and Correlates of Intestinal Parasites among Patients Admitted to Mirembe National Mental Health Hospital, Dodoma, Tanzania

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Azan A. Nyundo ◽  
David Z. Munisi ◽  
Ainory P. Gesase
Keyword(s):  
Neglected Tropical Diseases ◽  
Intestinal Parasites ◽  
Psychiatric Patients ◽  
Parasitic Infection ◽  
Parasitic Infections ◽  
Intestinal Parasitic Infection ◽  
Psychiatric Facility ◽  
Concentration Data ◽  
Cross Sectional ◽  
Stool Samples

Background. Neglected tropical diseases continue to be one of the leading causes of morbidity and mortality in the developing world. Psychiatric patients are among groups at risk for parasitic infection although control and monitoring programs largely overlook this population. This study aimed at determining prevalence and factors associated with intestinal parasitic infection among patients admitted to a psychiatric facility.Method. The study followed cross-sectional design; all the residing patients that met the inclusion criteria were included in the survey. Stool samples were collected and examined by direct wet preparation and formol-ether concentration. Data were analyzed with STATA version 12.1; Chi-square test was computed to determine the level of significance atpvalue < 0.05.Results.Of all 233 patients who returned the stool samples, 29 (12.45%) screened were positive for an intestinal parasite. There was no significant association between parasite carriage and age, sex, or duration of hospital stay.Conclusion. The study shows that intestinal parasitic infection is common among patients in a psychiatric facility and highlights that parasitic infections that enter through skin penetration may be a more common mode of transmission than the oral route. Furthermore, the study underscores the need for surveillance and intervention programs to control and manage these infections.

scholarly journals Development of Conventional Multiplex PCR: A Rapid Technique for Simultaneous Detection of Soil-Transmitted Helminths

Pathogens ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 152 ◽  
Author(s):  
Vivornpun Sanprasert ◽  
Ruthairat Kerdkaew ◽  
Siriporn Srirungruang ◽  
Sarit Charuchaibovorn ◽  
Kobpat Phadungsaksawasdi ◽  
...  
Keyword(s):  
Multiplex Pcr ◽  
Real Time ◽  
Real Time Pcr ◽  
Intestinal Parasites ◽  
Simultaneous Detection ◽  
Diagnostic Tools ◽  
Multiple Infections ◽  
Parasitic Infections ◽  
Soil Transmitted Helminths ◽  
Stool Samples

Soil-transmitted helminths (STHs) are the most common intestinal parasites infecting humans worldwide. STH infections are a major cause of morbidity and disability. Accurate diagnostic tools are pivotal for assessing the exact prevalence of parasitic infections. Microscopic examination and culture techniques have been used to observe the presence of eggs or larvae of parasites in stool samples, but they are time-consuming and have low sensitivity. Therefore, accurate, simple, and inexpensive diagnostic techniques are still required for simultaneous detection of STH infections. Although molecular-based techniques, such as real-time PCR and multiplex real-time PCR, have been developed, they are not suitable for routine diagnosis due to the requirement for expensive reagents and instruments. In this study, we established a conventional multiplex PCR for simultaneous rapid detection of Ascaris lumbricoides, Necator americanus, and Strongyloides stercoralis in stool samples. Our results show that the multiplex PCR could detect the DNA of STHs at a very low target gene concentrations (lower than 1 pg) with no cross-amplification. Multiplex PCR had five times higher sensitivity than the formalin–ethyl acetate concentration technique (FECT) in the detection of multiple infections, and two times higher for detection of S. stercoralis. However, multiplex PCR was comparable to FECT in the detection of A. lumbricoides and N. americanus. In conclusion, this method could be used as an alternative method for the detection of STHs, especially for S. stercoralis.

scholarly journals Intestinal parasites in children hospitalized at the Central Hospital in Maputo, Mozambique

2014 ◽  
Vol 8 (06) ◽  
pp. 786-789 ◽  
Author(s):  
Ana Maria Fonseca ◽  
Natercia Fernandes ◽  
Filipa S Ferreira ◽  
Joana Gomes ◽  
Sónia Centeno-Lima
Keyword(s):  
Low Income ◽  
Intestinal Parasites ◽  
Giardia Duodenalis ◽  
Low Income Countries ◽  
Central Hospital ◽  
Concentration Technique ◽  
Contagious Diseases ◽  
Parasite Detection ◽  
Stool Samples ◽  
Direct Microscopic Observation

Introduction: Intestinal parasites are important contributors to the global disease burden, especially in children of low-income countries. The present study determined the frequency of intestinal parasites in children hospitalized at the diarrhea section of the Infectious-Contagious Diseases ward and at the Malnutrition ward of the Department of Pediatrics of the Maputo Central Hospital in Mozambique. Methodology: This pilot study conducted between February and March 2009 enrolled a total of 93 children between 1.5 and 48.2 months of age; 87.1% were younger than 24 months. Parasite detection in stool samples was achieved using direct microscopic observation and Ritchie’s concentration technique. Results: Infection with pathogenic intestinal parasites was detected in 16.1% (15/93) of the children. Giardia duodenalis and Trichuris trichiura were the most common parasites (6.5%, 6/93 each), followed by Ascaris lumbricoides (2.2%, 2/93). One case of mixed infection with A. lumbricoides plus T. trichiura was also detected. Conclusion: This study reinforces the importance of routinely examining stool samples for the diagnosis of intestinal parasites (including protozoa) in children hospitalized in endemic areas.

Thick Stool Smear Wet Mount Examination: A New Approach in Stool Microscopy

2003 ◽  
Vol 33 (3) ◽  
pp. 173-173 ◽  
Author(s):  
Subhash Chandra Parija ◽  
Sanjay Bhattacharya ◽  
Prasant Padhan
Keyword(s):  
Intestinal Parasites ◽  
Laboratory Diagnosis ◽  
Parasitic Infections ◽  
New Approach ◽  
Intestinal Parasitic Infections ◽  
Wet Mount ◽  
Cotton Blue ◽  
Novel Method ◽  
Stool Samples ◽  
The Difference

Microscopic examination of a wet mount of the stool has been the standard practice for the laboratory diagnosis of intestinal parasitic infections. Here we describe a novel method of stool microscopy of 80 stool samples, 31 (38.75%) were positive by the new thick stool smear wet mount method, whereas the corresponding figure for the conventional method using lacto-phenol cotton blue was 16 (20%). The difference was found to be statistically significant ( P<0.04 by McNemar's test). The thick stool smear wet mount procedure promises to be superior to the direct wet mount method in the detection of the intestinal parasites.

scholarly journals Intestinal Parasites of Buffalo Calves from Romania: Molecular Characterization of Cryptoporidium spp. and Giardia Duodenalis, and the first Report of Eimeria Bareillyi

2021 ◽  
Author(s):  
Diana Ancuța Bărburaș ◽  
Vasile Cozma ◽  
Angela Monica Ionică ◽  
Ibrahim Abbas ◽  
Remus Bărburaș ◽  
...  
Keyword(s):  
Intestinal Parasites ◽  
Giardia Duodenalis ◽  
Gastrointestinal Parasites ◽  
Parasitic Infections ◽  
Buffalo Calves ◽  
Economic Resource ◽  
Toxocara Vitulorum ◽  
Staining Methods ◽  
First Time

Abstract Buffaloes represent an important economic resource for several regions of the world including Romania; however, no reports on parasitic infections in buffaloes from Romania are available. In the present study, we examined for the gastrointestinal parasites 104 fecal samples bimonthly collected from 38 buffalo calves (2–11 weeks old) from household rearing systems in Romania. All samples were tested using the saturated salt flotation, McMaster and modified Ziehl-Nielsen staining methods. PCR coupled with isolates sequencing methods were used to identify the Giardia duodenalis assemblages and Cryptosporidium species. Overall, 33 out of 38 examined buffalo calves were infected with different gastrointestinal parasites; 16 had single infections and 17 had mixed infections with 2 or 3 parasites. Eimeria species (32/38; 84.2%) was the most prevalent parasite; 8 species were identified according to the oocyst morphology including the pathogenic E. bareillyi which detected for the first time in buffaloes from Romania. Toxocara vitulorum (11/38; 36.8%) and Strongyloides papillosus (6/38; 15.8%) were also detected. Cryptosporidium spp. were found in 4 (10.5%) buffalo calves; 2 of them were molecularly identified as C. ryanae and another one was clustered in the same clade with C. ryanae, C. bovis, and C. xiaoi. Giardia duodenalis assemblage E was also molecularly detected in a single (2.6%) buffalo calf. The presence of other buffaloes in the same barn was identified as a risk factor for infection with T. vitulorum. Our results indicate extensive parasitic infections in buffalo calves from Northwestern Romania and underline the necessity of prophylactic treatments for T. vitulorum and E. bareillyi.

scholarly journals Detection of Intestinal Parasites With Automated Sedimax2®. A New Step in the Parasitological Diagnosis in High Throughput Laboratories.

2021 ◽  
Author(s):  
Gema Fernandez-Rivas ◽  
Belén Rivaya ◽  
Nona Romaní ◽  
Jun Hao Wang Wang ◽  
Mireya Alcaide ◽  
...  
Keyword(s):  
Intestinal Parasites ◽  
Parasitic Infections ◽  
Good Tool ◽  
Predictive Values ◽  
Intestinal Parasitic Infections ◽  
Parasitological Diagnosis ◽  
Automated Microscopy ◽  
Extra Step ◽  
Stool Samples ◽  
Low Prevalence

Abstract Despite the low prevalence of parasitic infections in Europe, the diagnosis of intestinal parasites is difficult and laborious for microbiology laboratories. Currently, the antigens detection kits and the molecular biology have allowed an easier diagnosis. But these techniques have also limitations due to the fact that they do not detect all possible parasites presents in the samples. The objective of the study was to evaluate the accuracy and the usefulness of SediMAX2® (77 Elektronika, Budapest, Hungary) automated microscopy in the detection of parasitic structures from feces. A total of 197 formol-fixed stool samples were processed in parallel with wet mount examination and by SediMAX2®. Sensitivities, specificities and predictive values were analyzed, reaching sensitivity of 89.51% and specificity of 98.15%. Predictive values were also calculated with a very good positive predictive value (99.22%). SediMAX2® is a good tool for a reliable diagnosis of intestinal parasitic infections. The easiness of use, processing and the flexibility in the images analyse allows its incorporation in the day to day laboratory work as an extra step for the parasitologists workload.

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