Biomarkers for Stool Analysis

2020 ◽  
pp. 227-235.e5
Author(s):  
Joseph Katzinger
Keyword(s):  
2021 ◽  
Vol 47 (1) ◽  
Author(s):  
G. Umbrello ◽  
R. Pinzani ◽  
A. Bandera ◽  
F. Formenti ◽  
G. Zavarise ◽  
...  

Abstract Background Hookworm infections (Necator americanus, Ancylostoma duodenale) are common in rural areas of tropical and subtropical countries. Human acquisition results from direct percutaneous invasion of infective larvae from contaminated soil. Overall, almost 472 million people in developing rural countries are infected. According to simulation models, hookworm disease has a global financial impact of over US$100 billion a year. Hookworm infection in newborn or infancy is rare, and most of the cases reported in literature are from endemic countries. Here, we describe the case of an infant with an Ancylostoma duodenale infection and review the literature currently available on this topic. Case presentation An Italian 2-month-old infant presented with vomit and weight loss. Her blood exams showed anemia and eosinophilia and stool analysis resulted positive for hookworms’ eggs, identified as Ancylostoma duodenale with real time-PCR. Parasite research on parents’ stools resulted negative, and since the mother travelled to Vietnam and Thailand during pregnancy, we assumed a transplacental transmission of the infection. The patient was treated successfully with oral Mebendazole and discharged in good conditions. Discussion Hookworm helminthiasis is a major cause of morbidity in children in the tropics and subtropics, but rare in developed countries. Despite most of the patients is usually asymptomatic, children are highly exposed to negative sequelae such as malnutrition, retarded growth and impaired cognitive development. In infants and newborns, the mechanism of infection remains unclear. Although infrequent, vertical transmission of larvae can occur through breastfeeding and transplacentally. Hookworm infection should be taken into account in children with abdominal symptoms and unexplained persistent eosinophilia. The treatment of infants infected by hookworm has potential benefit, but further studies are needed to define the best clinical management of these cases.


2007 ◽  
Vol 47 (1) ◽  
pp. 17
Author(s):  
Selvi Nafianti ◽  
Oke R. Ramayani ◽  
Dedy G. Daulay ◽  
Supriatmo Supriatmo ◽  
Berlian Hasibuan ◽  
...  

Background The etiologies of bloody diarrhea are shigella,amoeba, enterocolitis, trichuriasis, and other causes i.e, EIEC,Campylobacter jejuni or rotavirus. In developing countries,trimetroprim-sulfamethoxazole (TMP-SMP) is effective in 80%of children with bloody diarrhea.Objective To determine the efficacy of trimethoprim-sulfa-methoxazole (TMP-SMX) treatment in children with acute bloodydiarrhea.Methods A randomized double blind clinical trial was conductedin Adam Malik Hospital and Dr. Pirngadi Hospital Medan duringSeptember 2003-March 2004. Children aged 2-24 months oldwith diagnosis of acute bloody diarrhea were randomized into twogroups to either receive TMP-SMX or placebo for 5 days.Microscopic fecal analysis was performed on the first, second,fifth and twelfth day, and the results were compared.Results A total of 68 children consisted of 48 (71%) boys and 20(29%) girls were enrolled. Each group had 34 participants.Analysis of the first day showed leukocyte and erythrocyte in thestool specimens, which were all absent on the twelfth day in bothgroups. There was no difference in stool analysis between TMP-SMX and placebo group in day two (P=0.758), day five (P=0.341)and day twelve. Diarrhea duration in TMP-SMX and placebogroup was 7.18 days and 6.65 days, respectively. This differentwas statistically not significant (P=0.385).Conclusion There is no difference in the efficacy of trimethoprim-sulfamethoxazole treatment compared to placebo in children withacute bloody diarrhea.


Author(s):  
Bryan J Starkey

Colorectal cancer (CRC) causes 20 000 deaths per annum in the UK alone. Screening has been shown to reduce mortality but debate exists as to which approach to use. Direct visualization of the colorectum has the advantage that it detects lesions most effectively and is required at less frequent intervals, but the procedure is invasive and at present too costly for screening purposes. Faecal occult blood measurement, despite its limitations, is currently the recommended screening method, with follow-up of positive tests by colonoscopy or other visualization techniques. This strategy has been shown to reduce mortality from CRC by about 20% and screening trials directed towards individuals in the over 50 years age group are underway in the UK and elsewhere. Future developments in CRC screening include colorectal visualization by computed colonography - a less-invasive alternative to colonoscopy. Developments in stool analysis are also occurring. Examination of faecal samples for cellular products derived from neoplasms (e.g. calprotectin) may prove more sensitive and specific than faecal occult blood measurements. In addition, detection of altered DNA in faeces is being investigated by molecular biology techniques. Using a multi-target assay panel to detect point mutations and other neoplasia-associated DNA abnormalities may be an effective strategy for CRC screening in the future.


2013 ◽  
Vol 2 (3) ◽  
pp. 87-90
Author(s):  
RB Rayamajhi ◽  
G Pokharel ◽  
G Sharma ◽  
B Neupane ◽  
VK Khanal ◽  
...  

INTRODUCTION: In 2012 August, suspected cases of Cholera in increased number were reported to the district health office of Ilam by the in charge of Shantinagar health post asking for intervention to stop further occurrences. The aim of the investigation was to identify the possible source of infection, the causative agent and the application of local control measures for prevention of further recurrences. MATERIALS AND METHODS: Focus group discussion and Key informant survey were conducted to assess the sanitary hygiene and practices along with source of drinking water for probable cause of diarrhea. Similarly, face to face interview was done among the sick and healthy local residents to collect the demographic and clinical details. Ten stool and water samples were sent for analysis in Biratnagar, Dharan. RESULTS: 150 local residents had suffered from diarrhea with no deaths. People of all the age group were affected with children being more sufferers. Six of the stool analysis and eight of the water samples were positive for Vibrio Cholerae. It was also observed that sanitary hygiene and practices wasn’t adequate after nose and bottoms cleaning of the children and before preparing the meal. CONCLUSIONS: Lack of adequate cleanliness of the common water tank was found to be the culprit behind the incident and Vibrio Cholerae being the causative agent. Local residents and water management committee were demonstrated the technique of chlorination of water and proper hand washing practices to prevent further recurrences. DOI: http://dx.doi.org/10.3126/ijim.v2i3.8666 Int J Infect Microbiol 2013;2(3):87-90


2019 ◽  
Vol 10 (01) ◽  
pp. 049-052
Author(s):  
Varun Kumar Karri ◽  
Sravan Kumar Korrapati ◽  
L. R. S. Girinadh

ABSTRACT Introduction: Chronic diarrhea is defined as the passage of soft or watery stool more than three times per day with or without blood and/or mucous or the passage of stool of more than 200 g per day and lasts for more than 4 weeks. Studies exploring the causes of chronic diarrhea in the developing countries are scarce and might not be generalizable from one setting to another. Aim: The aim of the study is to study the colonic and terminal ileal macroscopic and mucosal histopathological findings in chronic large bowel diarrhea patients. Methods: Eighty-six patients with chronic large bowel diarrhea were included after negative HIV status, stool analysis, and stool culture. A full-length colonoscopy with terminal ileoscopy was done. When the colon was within normal limits, randomly four biopsies each were taken from terminal ileum, ascending colon, transverse colon, and rectosigmoid region, respectively. Results: In a total of 86 patients, most of the patients (48%) were in the age group of 41–60 years. Females predominated in the present study in the ratio of 3:2. Ileal intubation was possible in all (100%) cases. Histology is normal in 35 patients. Fifty-one patients had histological changes of which 22 were diagnostic for specific disease which altered the treatment. Among 22 patients, 21 (95.4%) had histological changes in ascending colon and only 9 (40.9%) had changes in biopsy from rectosigmoid. In our study, definite diagnostic histology was obtained in 25.5% of cases. Conclusion: The yield of colonoscopy and biopsy in chronic large bowel diarrhea is moderate. Colonoscopy and biopsy have higher diagnostic yield than sigmoidoscopic biopsies.


2015 ◽  
Vol 52 (2) ◽  
pp. 159-166 ◽  
Author(s):  
V. L. T. Mati ◽  
H. A. Pinto ◽  
A. L. Melo

Summary In order to have better knowledge of the parasites of the common water snake Liophis miliaris (Linnaeus, 1758), a checklist of its helminths was produced based on a review of the literature and new records of worms identified during the course of a parasitological survey combining data from stool analysis (n = 22) and necropsies (n = 8) of specimens of this snake from Muriaé, state of Minas Gerais, Brazil. Thirty-one helminth species (two acanthocephalans, one cestode, 11 nematodes and 17 trematodes) were so far reported in L. miliaris in the Neotropical region, already including the records in the present study of Acanthorhabdias acanthorhabdias Pereira, 1927, Paracapillaria (Ophidiocapillaria) cesarpintoi (Freitas & Lent, 1934) and Strongyloides ophidiae Pereira, 1929. Taxonomic comments on these nematode species are given, and areas of occurrence of A. acanthorhabdias and P. cesarpintoi are expanded in southeastern Brazil. In addition, factors related to parasite richness of L. miliaris, which is likely related to its aquatic habits, are discussed.


2009 ◽  
Vol 23 (11) ◽  
pp. 753-759 ◽  
Author(s):  
Andrew Szilagyi ◽  
Ian Shrier ◽  
George Chong ◽  
Jung Sung Je ◽  
Sunghoon Park ◽  
...  

BACKGROUND: The genetics of intestinal lactase divide the world’s population into two phenotypes: the ability (a dominant trait) or inability (a recessive trait) to digest lactose. A prebiotic effect of lactose may impact the colonic flora of these phenotypes differently.OBJECTIVE: To detect and evaluate the effects of lactose on subjects divided according to their ability to digest lactose.METHODS: A total of 57 healthy maldigesters (n=30) and digesters (n=27) completed diet questionnaires, genetic and breath hydrogen testing, and quantitative stool analysis for species of bacteria. Log10transformation of bacterial counts was compared with lactose intake in both groups using multiple regression analysis.RESULTS: There was a significant relationship between genetic and breath hydrogen tests. Daily lactose intake was marginally lower in lactose maldigesters (median [interquartile range] 12.2 g [31 g] versus 15 g [29.6 g], respectively). There was no relationship between lactose intake and breath hydrogen tests in either group. There were no differences in bacterial counts between the two groups, nor was there a relationship between bacterial counts and lactose intake in either group.CONCLUSION: The differential bacterial effects of lactose were not quantitatively detected in stool samples taken in the present study.


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