| ascaris lumbricoides infestation as a cause of intestinal obstruction in children: experience with 87 cases. | the purpose of this study is to describe the occurrence and management of bowel obstruction caused by ascaris lumbricoides, a common parasite in warm climates that affects children with limited socioeconomic means. | 1996 | 8632280 |
| residents' corner: answer to case of the month #37. hepatic ascariasis. | | 1996 | 8640421 |
| conservation, evolution, and specificity in cellular control by protein phosphorylation. | the glycolytic control enzyme phosphofructokinase from the parasitic nematode ascaris lumbricoides is regulated by reversible phosphorylation. the enzyme is phosphorylated by an atypical cyclic adenosine monophosphate (camp)-dependent protein kinase whose substrate specificity deviates from that of the mammalian protein kinase. this variation is explained by structural peculiarities on the surface part of the catalytic groove of the protein kinase. also, the protein phosphatases responsible for ... | 1996 | 8641381 |
| [intestinal obstruction caused by ascaris lumbricoides. a rare condition to be considered]. | | 1996 | 8649118 |
| [acute pancreatitis caused by ascaris lumbricoides in acute renal failure: case report]. | a 26-year-old female patient with severe acute pancreatitis caused by ascaris lumbricoides and consecutive acute renal failure is described. acute pancreatitis is mostly caused by gallstones and acute or chronic alcohol ingestion. ascariasis as an etiologic factor of acute pancreatitis does not occur very often except in the tropical and subtropical regions, where it is widely distributed. the goal of this case report was to worn the clinicians to pay attention to this, in our country rarely occ ... | 1995 | 8649171 |
| [biliopancreatic ascariasis: an infrequent disease in our environment]. | ascariasis is one of the most frequent helminthic diseases in man. most cases follow a subclinical form but may show symptoms related to pulmonary hypersensitivity or digestive complications. although biliopancreatic complications have been widely described in endemic areas, references in western countries are scarce. the authors therefore report their experience in 3 cases of this infrequent disease which were recently attended in their hospital over a brief period of time. | 1996 | 8665361 |
| intestinal parasitic infections among rural farming communities in eastern sierra leone. | a study carried out in four rural, mainly farming villages in the gorama chiefdom, kono district, eastern sierra leone revealed that intestinal helminth infections are prevalent in this area of sierra leone. out of the 1164 persons of all ages who were examined, 853 (73.5%) proved positive for at least one intestinal helminth infection. ascaris lumbricoides was the most common helminth encountered (37.5%), followed by hookworms, 12.9%; trichuris trichiura, 12.6%; schistosoma mansoni, 5.6%; stron ... | 1995 | 8669401 |
| intensity of infection and reinfection rate of a. lumbricoides in a rural farming village, dembia district, northwest ethiopia. | the purpose of this study was to determine the intensity of infection and reinfection rate of a. lumbricoides at a village in dumbia district, northwest ethiopia. it was done in june 1992 and repeated in june 1993. among 192 examined for intestinal parasites, the prevalence rate was 60.9%. infection with a. lumbricoides was 34.4%. children in the age-group 1-4 years had the highest egg count (arithmetic mean of 3040 eggs per gram of stool) for a. lumbricoides. reinfection rate after 11 months am ... | 1995 | 8674490 |
| [unusual ingestion of a nasogastric tube by ascaris lumbricoides]. | we present the unusual ingestion of a levin's tube by ascaris lumbricoides found in the stomach of a 60 year old woman who died with the clinical diagnosis of cerebral vascular disease. | 1996 | 8685590 |
| a cost-effectiveness analysis of anthelminthic intervention for community control of soil-transmitted helminth infection: levamisole and ascaris lumbricoides. | a study to compare effects of mass, targeted, and selective chemotherapy with levamisole as an intervention for the control of ascaris lumbricoides was carried out in 3 communities in rural oyo state, nigeria. selective treatment was applied in 1 village by treating the most heavily infected 20% of the inhabitants, targeted treatment in the second village involved children aged 2-15 yr, whereas mass treatment was offered to all inhabitants in the third village, excluding infants under 1 yr and p ... | 1996 | 8691358 |
| endoscopic treatment of biliary ascariasis. report of a case. | ascaris lumbricoides is the most common intestinal parasite to infect humans. the incidence of ascariasis is increasing in our regions, due to world travel and population migration. in one third of cases, the worm can enter the bile duct and cause cholangitis or biliary colics. diagnosis and treatment of ascariasis are discussed. endoscopic retrograde cholangio-pancreaticography (ercp) with endoscopic extraction of the worm, using a dormia basket, is a safe and effective procedure for the diagno ... | 1996 | 8693875 |
| anticoagulant repertoire of the hookworm ancylostoma caninum. | hookworms are hematophagous nematodes that infect a wide range of mammalian hosts, including humans. there has been speculation for nearly a century as to the identity of the anticoagulant substances) used by these organisms to subvert host hemostasis. using molecular cloning, we describe a family of potent small protein (75-84 amino acids) anticoagulants from the hookworm ancylostoma caninum termed acap (a. caninum anticoagulant protein). two recombinant acap members (acap5 and acap6) directly ... | 1996 | 8700900 |
| toxocariasis: a cause of hyper ige and eosinophilia. | we present a patient with elevation of total serum ige, eosinophilia and toxocara exoantigen specific igg and ige antibodies (detected by elisa and rast, respectively). we ruled out atopy and other parasitic diseases common in our habitat (e.g., echinococcus granulosus, ascaris lumbricoides, schistosoma mansoni). the patient was asymptomatic over the four years of the study, and the levels of total serum ige, eosinophils and toxocara exoantigen specific igg and ige remained high. although at pre ... | 1995 | 8705015 |
| selective treatment and targeted chemotherapy: effect on prevalence and intensity of infection for two intestinal helminths in nepalese children. | the study examines the effect of mebendazole distribution (2 x 100 mg x 3 days) either as mass chemotherapy targeted to children 1 to 10 years old, or selective treatment of heavily infected children, over a two year period in sixteen rural villages of nepal. eight villages were covered with six monthly mass chemotherapy, provided by community health volunteers, other eight with yearly selective treatment of heavily infected children based on clinical signs. prevalence and intensity of infection ... | 1995 | 8710405 |
| targeted anthelminthic treatment of school children: effect of frequency of application on the intensity of ascaris lumbricoides infection in children from rural nigerian villages. | a study to compare the effects of different frequencies of targeted chemotherapy with levamisole (ketrax: jagal pharma, lagos, zeneca pharmaceuticals uk) as an action for the control of ascaris lumbricoides was carried out in 3 communities in rural oyo state, nigeria. the targeted group comprised children, age 5 to 15 years, attending primary school within their village. treatment was provided within the school with the assistance of the school teachers. three frequencies of targeted treatment w ... | 1996 | 8710419 |
| intestinal parasites of humans in a highland community of irian jaya, indonesia. | an indigenous, highland community in the oksibil valley of irian jaya, indonesia, was examined on two occasions to determine the prevalence of intestinal parasites. overall, 478 subjects from three villages in the study area, about 10% of the available population, were sampled. using a standard, wet-mount technique, 15 different species of parasites were found. hookworm was predominant in all age groups, with prevalences of 51%-86%, followed by ascaris lumbricoides (46%-57%) and trichuris trichi ... | 1996 | 8729627 |
| occurrence of giardia lamblia in children of municipal day-care centers from botucatu, são paulo state, brazil. | considering that the number of day-care centers for pre-school-age children has expanded rapidly in developing countries, and that these institutions presenting conditions that facilitate the transmission of many enteric agents, a parasitological survey was carried out in three municipal day-cares from botucatu: two in the urban area (one in downtown area and the other one in the city periphery area) and the third in the rural area. three separate stool specimens were collected from 147 children ... | 1995 | 8731262 |
| [relationship between the rate of parasitic infection and the knowledge of prevention]. | the relationship between the rate of parasitic infection and the level of knowledge of prevention was studied among 5479 persons allocated to 12 randomly selected groups. stools were examined for parasitic infection by using kato-katz, iodine direct smear amd tube culturing methods. children under 15 were examined for enterobius infection by cellophane tape method. individuals were considered infected when any parasite species was found in the stool and the infection rate was computed. the score ... | 1995 | 8732079 |
| [liver abscess in childhood: report of 8 cases]. | the authors present eight cases of children with liver abscess diagnosed in the pediatric nursery of the "hospital das clínicas", state university of campinas, sp, brazil, during eight years. five children were younger than five years. they were four boys and four girls. the symptomatology was inespecific. staphylococcus aureus was the more frequent etiologic agent and in two cases it was seen ascaris lumbricoides worm inside the abscess. the findings of ultrasound and computadorized tomography ... | 1995 | 8734855 |
| direct analysis of nematode cis- and trans-spliceosomes: a functional role for u5 snrna in spliced leader addition trans-splicing and the identification of novel sm snrnps. | most nuclear pre-mrnas in nematodes are processed by both cis- and trans-splicing. in trans-splicing, the 5' terminal exon, the spliced leader sequence (sl), is derived from a trans-splicing specific sm snrnp, the sl rnp. because u snrnps are required cofactors for trans-splicing, and because this processing reaction proceeds via a two-step reaction pathway identical to that of cis-splicing, it has long been assumed that trans-splicing is catalyzed in a complex analogous to the cis-spliceosome. ... | 1996 | 8752084 |
| multiple infection with plasmodium and helminths in communities of low and relatively high socio-economic status. | a study was conducted in the city of lubumbashi, zaire: (1) to survey parasitic infections and clinical conditions in the local children and their mothers; (2) to identify combinations of parasites and clinical conditions that commonly occurred together in individuals; and (3) to determine whether single- and/or multiple-species infections were risk determinants of the observed clinical conditions. overall, 1100 children and mothers from three subdivisions, two of low socio-economic status (lses ... | 1996 | 8758142 |
| the effects of deworming on indicators of school performance in guatemala. | intestinal helminths are among the most common infections in school-age children. of 246 children, aged 7-12 years, attending school in rural guatemala, 91% carried ascaris lumbricoides and 82% carried trichuris trichiura. these children were randomly assigned to receive either albendazole or placebo at 0 and 12 weeks in a 'double-blind' study of the effects of deworming on indicators of school performance. albendazole successfully rid the children of ascaris but it was less effective against tr ... | 1996 | 8761577 |
| the distribution of common intestinal nematodes along an altitudinal transect in kwazulu-natal, south africa. | in order to study the effect of climate and topography on the distribution of common, intestinal nematodes in schoolchildren, changes in prevalence were investigated along an altitudinal transect from approximately 50 m above sea level (asl), near the coast, to approximately 1700 m asl, in the foothills of the drakensberg mountains, kwazulu-natal, south africa. these changes were related to several permutations of temperature, rainfall and evaporation, using univariate and multiple regression an ... | 1996 | 8762408 |
| [intestinal geohelminthosis in man and domestic animals in the riverside sections of the valdivia river basin, chile]. | in march-october 1987 were analyzed 1295 coprological specimens in a sample of the human population who lives in riverside localities in the valdivia river basin, chile. a 23.6% of examined persons presented infection by one or more helminth species. the prevalence of infection by ascaris lumbricoides, trichuris trichiura and trichostrongylidae gen. sp. were 15.5, 12.7 and 0.2%, respectively. the prevalence of human ascariosis and trichuriosis were greater in pre-school and school children. the ... | 1995 | 8762668 |
| [comparison of 3 techniques in the serological diagnosis of human hydatidosis]. | three serological techniques for hydatid disease were compared using 60 human serum samples obtained from 29 patients with hydatidosis previously demonstrated by surgery, 15 apparently healthy individuals and 16 persons with different pathologies. the results obtained with these 3 techniques showed some differences that could associate with the anatomical location of the parasite and the biological stage of the hydatid cysts. the global sensitivity of the techniques was 96.6% for elisa, 86.2% fo ... | 1995 | 8762676 |
| helminth infections, morbidity indicators and schistosomiasis treatment history in three villages, dongting lake region, pr china. | in order to estimate the public health impact of helminth infections, and to provide baseline data for interventions, parasitological and morbidity surveys were conducted among inhabitants of three villages in dongting lake region, hunan province, china. ascaris lumbricoides was found to be the most common helminth infection, followed by trichuris trichiura and schistosoma japonicum. left liver enlargement was the most common indicator of morbidity. observed numbers of multiple species infection ... | 1996 | 8765454 |
| the prevalence and control of soil-transmitted nematode infections among children and women in the plantations in sri lanka. | to determine the prevalence of soil-transmitted nematode infections among children and to assess the magnitude of nematode infections among women in the reproductive age group. | 1996 | 8771940 |
| the role of sonography in the early diagnosis of biliopancreatic ascaris infestation. | acute pancreatitis due to ascaris lumbricoides infestation is extraordinarily uncommon in europe. the diagnosis can be difficult because of the low index of suspicion in our area, and this may lead to death. the case of a columbian patient living in spain who developed an acute pancreatitis is discussed. he had no history of alcohol abuse, gallstones, or drug abuse. the sonography showed a longitudinal structure with inner parallel linear bands and undulant movements inside the gallbladder and a ... | 1996 | 8776097 |
| viability of ascaris suum, ascaris lumbricoides and trichuris muris eggs to alkaline ph and different temperatures. | disposal of wastewater sludges in agricultural soil is a way to recover mineral and organic substances. nevertheless disposing and handling such untreated, potentially contaminated sludges may be hazardous for human health and the environment. the aim of this study is to evaluate a method for sludge decontamination consisting in alkaline treatment with ammonia at different temperatures (22 degrees c, 30 degrees c, 40 degrees c) to establish its effects on the survival of ascaris suum, ascaris lu ... | 1995 | 8778663 |
| intestinal ascariasis as a cause of bowel obstruction in two patients: sonographic diagnosis. | | 1996 | 8792275 |
| intestinal parasites among the southeast asian laborers in taiwan during 1993-1994. | a large number of foreign laborers are now working in taiwan, the majority coming from southeast asia where parasitic infections are common. since 1992, monitoring the intestinal parasitic infections of these foreigners has been carried out, particularly to prevent the introduction of some of the parasites into taiwan. this paper reports results obtained during the year 1993-1994. | 1996 | 8803301 |
| field evaluation of an improved kato-katz thick smear technique for quantitative determination of helminth eggs in faeces. | a new method for the quantification of helminth eggs in faeces was developed, in which 7.5% nigrosin in 10% formaldehyde mixed with 5% eosin yellow in 10% formaldehyde was substituted for the malachite green solution used in the standard kato-katz method. this modification revealed the eggs of parasites like schistosoma mansoni, ascaris lumbricoides, trichuris trichiura and hookworms distinctly. the slides made with this new technique could be accurately read within one hour. faecal smears from ... | 1995 | 8826110 |
| intestinal obstruction caused by ascaris lumbricoides. | the aim of this study is to present patients, to discuss causes of morbidity and mortality, and to ascertain prognostic indexes and therapeutic options influencing outcome of patients with intestinal obstruction caused by ascaris lumbricoides. | 1996 | 8831534 |
| prevalence of intestinal parasites in adult patients with enteropathic aids in north-eastern tanzania. | a six month study was conducted in north-eastern tanzania to determine the prevalence of pathogenic intestinal parasites among adult patients with enteropathic aids. a total of 352 patients were recruited of whom 158 (45%) had chronic diarrhoea. of the 352 patients, 123 (35%) had intestinal parasites. of the 123, 77 (62.6%) patients had chronic diarrhoea. the types of parasites detected were cryptosporidium, isospora belli, strongyloides stercoralis, schistosoma mansoni, trichuris, trichiura, as ... | 1996 | 8840602 |
| schistosoma and geohelminth infections in mali, west africa. | we report on the prevalence of schistosomiasis and geohelminth infections in mali, central west africa, based on data from the national schistosomiasis control programme of mali (1982-1991) and from our recent surveys (1992-1993). combined national figures and regional data are presented from both surveys. schistosomiasis showed an overall prevalence of 30.1%, with lowest prevalence in sikasso region and highest prevalence in segou region. ascaris lumbricoïdes (0.12%) and trichuris trichiura (0. ... | 1995 | 8849296 |
| ascariasis. | ascariasis is a helminthic infection of global distribution with more than 1.4 billion persons infected throughout the world. the majority of infections occur in the developing countries of asia and latin america. of 4 million people infected in the united states, a large percentage are immigrants from developing countries. ascaris-related clinical disease is restricted to subjects with heavy worm load, and an estimated 1.2 to 2 million such cases, with 20,000 deaths, occur in endemic areas per ... | 1996 | 8863040 |
| acalculous cholecystitis: ascariasis as an unusual cause. | migration of roundworms into the biliary tree is a well-known complication of ascaris lumbricoides infestation of the intestine. massive infestation of the hepato-biliary tract is uncommon but can lead to complications if not treated. here, we report two cases of acalculous cholecystitis caused by ascariasis. | 1996 | 8887047 |
| improvements in appetite and growth in helminth-infected schoolboys three and seven weeks after a single dose of pyrantel pamoate. | appetite and growth were studied in primary schoolboys (6-10 years) infected with ascaris lumbricoides (86%) and trichuris trichiura (100%) who received a single dose of pyrantel pamoate (which has little or no effect on trichuris trichiura) or a placebo. boys were examined, allocated at random by descending ascaris egg count to pyrantel (pr, n = 36) or placebo (pl, n = 36) groups, treated, and re-examined 3 and 7 weeks later. the 2 groups did not differ significantly before treatment in helmint ... | 1996 | 8893536 |
| intestinal parasitism in san cayetano, corrientes, argentina. | an epidemiologic study was conducted in san cayetano, a village in the province of corrientes, argentina, to determine the prevalence of intestinal parasitoses in children. eighty-eight households were randomly selected. stool samples were collected from 207 children (72% of the school-age population and 12% of the total village population) over a period of six consecutive days, and were subjected to microscopic examination. of the samples examined, 170 (83%) contained one or more parasites, of ... | 1996 | 8897723 |
| evaluation of igg4 response in ascariasis by elisa for serodiagnosis. | the excretory/secretory (es) antigen(s) of ascaris lumbricoides was fractionated into 10 fractions by gel chromatography on a suparose 12 column in fplc. of these, the third fraction (al iii), showing binding activity with both ige and igg antibodies of a. lumbricoides infected patients' sera, was further resolved into 2 fractions (al iiia and al iiib) on passage through a mono q column. al iiib was found to be the most potent antigen due to its high binding affinity with ige and igg antibodies ... | 1996 | 8911447 |
| hemoquant determination of hookworm-related blood loss and its role in iron deficiency in african children. | iron deficiency remains the most prevalent form of human malnutrition, and current interventions to control it have not decreased the global prevalence. hookworm control activities are becoming more widely implemented, but the importance of these efforts to prevent anemia in populations is not well-defined. we studied the relationships among hookworm infection, intestinal blood loss, and iron status of 203 zanzibari school children. helminth infection intensity was quantified by fecal egg counts ... | 1996 | 8916795 |
| parasitological and bacteriological studies in recurrent diarrhoea in patients with chronic liver diseases. | sixty patients with chronic liver disease complaining of persistent or recurrent diarrhoea where studied. the stools were examined by direct smear, formol ether concentration method and modified ziehl neelsen technique for cryptosporidium in addition to stool cultures for enteric pathogenic bacteria as salmonella, shigella and e. coli. giardia lamblia was the most prevalent pathogen responsible for diarrhoea in 23.3% of cases followed by entamoeba histolytica in 21.6%, schistosoma mansoni in 5% ... | 1996 | 8918043 |
| biliary ascariasis--a letter to the editor. | | 1995 | 8926912 |
| ascaris, people and pigs in a rural community of jiangxi province, china. | a longitudinal investigation on natural populations of ascaris in humans and pigs and an investigation of soil contamination with ascaris eggs were carried out from june 1993 to june 1994 in 2 villages, manhu area, xinjian county, jiangxi province, china. results from these studies indicate that although human ascariasis is endemic there is significant fluctuation in both prevalence and the mean number of eggs/g faeces (epg) of the communities. fluctuation of age-stratified prevalence and mean e ... | 1996 | 8939051 |
| [sonographic imaging of ascaris lumbricoides]. | the round worm, ascaris lumbricoides, is one of the largest of the parasites that infest the human bowel. the worms usually develop in the jejunum and can reach several thousand in number, causing bowel obstruction, volvulus, intussusception, appendicitis and even bowel perforation with penetration into the peritoneal cavity. they tend to invade the bile and pancreatic ducts and may cause acute cholecystitis and pancreatitis. ascaris lumbricoides can be detected by sonography. this imaging modal ... | 1996 | 8940520 |
| a comparative trial of a single-dose ivermectin versus three days of albendazole for treatment of strongyloides stercoralis and other soil-transmitted helminth infections in children. | a randomized trial carried out in rural zanzibar comparing a single dose of 200 micrograms/kg of ivermectin and 400 mg/day for three days of albendazole for treatment of strongyloidiasis and other intestinal nematodes is described. in 301 children with strongyloides stercoralis infection, treatment with ivermectin or albendazole resulted in cure rates of 83% and 45%, respectively. while both drugs were very effective against ascaris lumbricoides, trichuris trichiura was cured only in 11% (iverme ... | 1996 | 8940976 |
| potential for diagnosis of intestinal nematode infections through antibody detection in saliva. | the present study was the first to investigate the potential of saliva in community diagnosis of the major human intestinal nematode infections, trichuris trichiura, ascaris lumbricoides, and the hookworms. immunoglobulin g (igg) antibodies specific to parasite antigens were quantified in saliva samples of 187 individuals (all ages) from a st lucian community, and 120 school-aged children from tanga region, tanzania, and relationships with current infection status (determined by numbers of paras ... | 1996 | 8944263 |
| analysis of the prevalence of infection and associations between human gastrointestinal nematodes among different age classes living in the urban and suburban communities of port harcourt, nigeria. | fresh stool samples from 300 subjects presenting at out-patient clinics in two major hospitals in port harcourt were analysed for the prevalence and intensity of gastrointestinal (gi) nematode infections and 85.3% were found to carry at least one of the four species of gi nematodes recognized during the study. the most common species was ascaris lumbricoides (54%), followed by trichuris trichiura (43.7%) and necator americanus (42.7%) and lastly strongyloides stercoralis (33%). peak prevalence f ... | 1996 | 8960202 |
| [degree of aggregation of ascaris lumbricoides according to age groups after a massive antihelmilthic intervention]. | the degree of aggregation is determined for the whole population and for different age-specific strata and is used for assessing the reinfection rate after a mass antihelminthic chemotherapeutic intervention. | 1996 | 8966630 |
| limited field evaluation of a rapid monoclonal antibody-based dipstick assay for urinary schistosomiasis. | a rapid, visually read monoclonal antibody (moab)-based dipstick assay for specific diagnosis of urinary schistosomiasis was field tested with microscopy and the use of hematuria and proteinuria in a schistosomiasis hematobia endemic area in southern ghana. the study group consisted of 229 individuals (114 males and 115 females) aged 1 to 86 years; 145/229 (63.3%) of the subjects submitted stool samples from which no s. mansoni eggs were detected. however, infections with necator americanus (hoo ... | 1996 | 8985756 |
| epidemiology of iron deficiency anemia in zanzibari schoolchildren: the importance of hookworms. | anemia is estimated to affect one-half of school-age children in developing countries. the school years are an opportune time to intervene, and interventions must be based on sound epidemiologic understanding of the problem in this age group. we report on the distribution of iron deficiency and anemia across age, sex, anthropometric indexes, and parasitic infections in a representative sample of 3595 schoolchildren from pemba island, zanzibar. iron status was assessed by hemoglobin, erythrocyte ... | 1997 | 8988928 |
| study of the incidence of intestinal and systemic parasitoses in a group of children with handicaps. | a high incidence of parasitic infections was shown by the study of children with physical and psychic handicaps. in 231 children examined we diagnosed 294 parasitic infections as follows: 42 (18.1%) with giardia intestinalis 6 (2.59%) with entamoeba histolytica 36 (15.5%) with hymenolepis nana 21 (9.9%) with strongyloides stercoralis 16 (6.9%) with ascaris lumbricoides 92 (39.86%) with tricocephalus dispar 38 (16.4%) with enterobius vermicularis 7(3.03%) with cryptosporidium sp. also, by immunod ... | 1995 | 8993115 |
| peripheral and nasal eosinophilia and serum total immunoglobulin e levels in children with ascariasis. | in order to evaluate peripheral and nasal eosinophilia and serum total ige levels in ascariasis, 30 children between two and 12 years of age whose fecal samples were found to contain ascaris lumbricoides, and 30 children between 1.5 and 12 years of age who did not have ascaris in their fecal samples, were enrolled in the study. peripheral eosinophil counts and serum total ige levels were significantly higher in the study group, but there was no significant difference between the nasal eosinophil ... | 1996 | 8993177 |
| effect of intestinal helminthiasis on intestinal permeability of early primary schoolchildren. | intestinal permeability of 246 early primary schoolchildren at 2 schools (106 of whom were infected with intestinal helminths) was assessed by using the lactulose/mannitol differential absorption test. the ratio of the urinary recoveries of lactulose and mannitol was determined after oral administration of a standard solution of the 2 sugars. assessment of intestinal permeability was repeated on 100 infected children after treatment and on a cohort of 68 uninfected children. infected and uninfec ... | 1996 | 9015510 |
| [an ascaris in the lacrimal duct. apropos of a case in zaire]. | a male adult ascaris lumbricoides worm has been extracted from lacrimal canal of a 9 months old child living in zaire. | 1996 | 9026326 |
| urban schistosomiasis: morbidity, sociodemographic characteristics and water contact patterns predictive of infection. | schistosomiasis (schistosoma mansoni) is classically described as a rural disease that occurs in areas with poor sanitary conditions. this cross-sectional study was undertaken in a suburban area of a large industrialized city in brazil (belo horizonte), aiming at examining epidemiological characteristics of schistosomiasis in an urban setting. | 1996 | 9027538 |
| surgical ascariasis in children in kashmir. | a retrospective study of 85 children aged 3-12 years revealed 25 cases who needed surgical intervention due to ascariasis. the surgical conditions found at laparotomy were intestinal obstruction (18) appendicitis (3), ileal perforation (2), biliary ascariasis (2). the study highlights the high incidence of surgical ascariasis among children with abdominal complaints in an endemic area. | 1997 | 9030012 |
| socioeconomic and behavioral factors affecting the prevalence of geohelminths in preschool children. | the aim of this study was to examine the relationship between the prevalence of geohelminth infections in preschool children living in an urban slum area in sri lanka and parental education, socioeconomic status, the use of anthelmintics, and beliefs regarding these helminths. between october 1992 and february 1993, stool samples were collected from preschool children (< or = 60 months of age) in the mahaiyyawa area, kandy, sri lanka, and examined using direct smears and a concentration techniqu ... | 1996 | 9031397 |
| [survey of parasitic prevalence in school-aged children in guinea (1995)]. | a national survey was carried out to assess the prevalence of helminth infections in all four geographical zones of guinea (the four official names should be used. guinée forestière, haute guinée, moyenne guinée and basse guinée) to provide information on which a school-based intervention program could be developed. the program, financed by the world bank, would consist of vitamin supplementation, antihelmintic treatment and hygiene education. | 1996 | 9053106 |
| intestinal parasitic infestation among different population groups of andaman and nicobar islands. | a survey was carried out among the rural and urban settlers and two tribal groups viz. nicobarese and onges, of andaman and nicobar islands. the survey covered preschool school aged children and adults. out of the total 1,384 stool samples examined, 652 (47.1%) showed ova or cysts of one or more intestinal parasites. among the preschool children, nicobarese showed the highest overall prevalence rate (80.5%) followed by urban (46.7%) and rural (38.6%) preschool children. ascaris lumbricoides was ... | 1996 | 9057449 |
| histone h4 mrna from the nematode ascaris lumbricoides is cis-spliced and polyadenylated. | a histone h4 gene from ascaris lumbricoides contains an intron of approx. 2040 bp. transcripts of the gene are spliced and polyadenylated. this is the first intron-containing h4 gene described for a metazoan. notably, h4 mrna from another nematode, caenorhabditis elegans, is intron-less and lacks poly a (roberts, s.b., emmons, s.w. and childs, g. (1989) j. mol. biol. 206, 567-577). | 1997 | 9061019 |
| [recurrent palpebral edema caused by ascaridiasis]. | | 1967 | 9082248 |
| morbidity and mortality due to ascaris-induced intestinal obstruction. | we examined epidemiological aspects of ascaris-induced intestinal obstruction (ai-io) through analysis of published reports on the subject. in 9 studies of > or = 100 patients admitted to hospital due to ascariasis, intestinal obstruction was the single most common complication and accounted for 38-87.5% of all complications (weighted mean 72%). the proportion of intestinal obstruction caused by ascariasis was identified in 14 studies from 7 countries with varying degrees of endemic ascariasis. ... | 1997 | 9093623 |
| ascaris lumbricoides in the paranasal sinuses of a jamaican adult. | | 1997 | 9093624 |
| "stupidity or worms": do intestinal worms impair mental performance? | the title of a 1930s article asked the question, "stupidity or hookworm?" in this article, the authors discuss research that attempts to answer the question of whether intestinal worms--namely, hookworm, whipworm, and roundworm--harm the mental performance of their hosts. after introducing the biology and epidemiology of intestinal worms, the authors present the historical background to the problem. they review research from the 1910s through the 1990s; there is evidence that high intensities of ... | 1997 | 9100486 |
| ascaris suum: a revision of its early migratory path and implications for human ascariasis. | during the course of carrying out studies on the role of intestinal immunity in blocking the migration of larval ascaris suum in the pig, it was discovered that the prevailing understanding of larval penetration sites was at variance with our observations. therefore, a detailed investigation of the migration of a. suum 1.2 larvae through the intestine was initiated. the results demonstrate that the 1.2 larvae invade almost exclusively the wall of the pig cecum and colon and not the small intesti ... | 1997 | 9105307 |
| intestinal obstruction due to ascariasis. | intestinal obstruction due to ascariasis results from heavy worm infestation. this study is a review of 92 patients with intestinal obstruction from ascaris lumbricoides. | 1997 | 9117326 |
| ct findings in pediatric gastrointestinal ascariasis. | we present a case of a 9-yr-old child with gastrointestinal ascariasis. computed tomography of the abdomen demonstrates the ascaris roundworms as cylindrical filling defects within contrast filled bowel loops. in addition, the intestinal tract of the roundworm itself is seen as a thin thread of oral contrast within the tubular filling defect. to our knowledge, this is the first reported description of the ct findings of intestinal ascariasis in a pediatric patient. | 1997 | 9118070 |
| in vivo and in vitro studies on the sonographical detection of ascaris lumbricoides. | intestinal ultrasound, a frequently applied diagnostic tool in industrialized nations, has recently also been introduced in tropical regions. this study attempts to describe the anatomical and sonographical features of ascaris lumbricoides in the human intestine. in the course of a schistosomiasis morbidity study in madagascar, 581 inhabitants of a rice-farming village on the high plateau of the island had their stools examined by means of a modified kato-katz thick smear technique (four slides ... | 1997 | 9126575 |
| relationships between soil-transmitted helminthiases and growth in urban slum schoolchildren in ujung pandang, indonesia. | this study examined the relationship between intestinal helminthiases and growth in urban slum schoolchildren. children (n = 330) who received single doses of either pyrantel, albendazole, or placebo at baseline and again at 6 months were followed and examined fully at 0, 3, 6, and 12 months for helminth infections and anthropometry. results of treatments indicated that all groups reduced their prevalence and intensity toward the period of the study. reductions in intensity of both infections in ... | 1997 | 9135770 |
| contamination of soil with parasite eggs in surabaya, indonesia. | soil was examined for contamination by parasite eggs in surabaya indonesia. surveys were carried out on three occassion; july, 1993 (dry season), march, 1994 (rainy season), and august, 1994 (dry season). throughout the study, five species of nematode eggs (ascaris lumbricoides, toxocara cati, trichuris trichiura, physaloptera sp, capillaria sp), two species of cestode eggs (hymenolepis diminuta, spirometra erinacei), and one species of protozoa oocyst (isospora felis) were detected. the contami ... | 1995 | 9139385 |
| parasitic contamination of stored water used for drinking/cooking in hyderabad. | a study was undertaken to investigate the parasitic contamination of water in hyderabad city, india. a total of 232 samples of water were collected from different places; social welfare hostels, small restaurants, different households, public places like railway stations, bus depots, street food vendors, hand washings from the food handlers, and vegetable washings from vegetable vendors. of these 232 samples 61 samples indicated the presence of pathogenic parasites which include protozoans (cyst ... | 1995 | 9139396 |
| epidemiological aspects of liver abscesses in children in the western cape province of south africa. | a high incidence (28 per 100,000 admissions) of liver abscesses is reported in children from the western cape province of south africa. of a total of 84 childhood hepatic abscesses over a 10-year period, 51 per cent (43 patients) were primary pyogenic, 30 per cent (25 patients) amoebic, 2 per cent (two patients) ascaris, and 17 per cent (14 patients) were culture negative. protein calorie malnutrition was evident in 56 per cent of cases. amoebic abscesses originated in patients from rural areas, ... | 1997 | 9143181 |
| parasitic infections in sickle cell crisis: nigerian experience. | data collected on 150 sickle cell patients in nigeria were analyzed to determine the frequency of parasitic infections in clinical and hematologic crisis. fifty-three adult and 97 pediatric patients (mean age: 27.6 years and 9.7 years, respectively) were studied. of these patients, 82 were males and 68 females. one hundred thirty-nine had the ss and 11 the sc genotype. blood samples collected from patients on admission for sickle cell-related illnesses were examined microscopically for evidence ... | 1997 | 9145635 |
| sonographic evaluation of biliary ascariasis. | in a prospective 6-month study, sonographic diagnosis of biliary ascariasis was made in 14 patients; in nine patients, the diagnosis was confirmed by endoscopic retrograde cholangiopancreatography and bile analysis, while in five patients, confirmation was obtained by proven intestinal infestation. no false-positive or false-negative cases were encountered. ascariasis of the biliary tract was seen on ultrasound as echogenic, non-shadowing images, either as single or multiple strips, with visuali ... | 1997 | 9153828 |
| intestinal geohelminthiasis in the developing world. | intestinal parasitic helminths such as roundworms (ascaris lumbricoides), hookworms (ancylostoma doudenale and necator americanus) and whipworm (trichuris trichiura) are common in the developing world. strongyloides stercoralis, though not so common, also contributes to health problems. the prevalence of intestinal worm infestation in india varies from 5% to 76%, which is similar to that in other developing countries. these parasitic infestations are acquired by ingestion, inhalation or penetrat ... | 1997 | 9153983 |
| relationship of childhood protein-energy malnutrition and parasite infections in an urban african setting. | a clear understanding of protein-energy malnutrition (pem), parasite infection and their interactions is essential in formulating health and development policies. we studied the prevalence of pem indicators and the prevalence and/or intensity of infection in 558 zairian children aged 4 months to 10 years. multivariate analyses were used to estimate relationships between pem indicators and parasitic infection. stunting was found in 40.3% of children, wasting in 4.9% and kwashiorkor in 5.1%. the r ... | 1997 | 9171847 |
| [a case of severe malnutrition due to ascaris lumbricoides infestation in a boy]. | the authors report a case of a child three years old, with severe malnutrition as complication of ascaris lumbricoides infection. intestinal nematodes infect many of the world's children and constitute a formidable public health problem. the infected children may suffer nutritional deficits, serious illness and occasionally death. although infestation is uncommon in our country, it should be considered in children with low social life. | 1996 | 9173412 |
| presence of very high prevalence and intensity of infection with fasciola hepatica among aymara children from the northern bolivian altiplano. | coprological studies of school children from four communities in the northern bolivian altiplano were carried out in order to estimate the prevalences and intensities of fasciola hepatica infection. single stool specimens were collected at random from 558 school children (308 boys and 250 girls) aged 5-19 years old. nineteen different parasite species (13 protozoan and six helminths) were detected. of the children examined, 98.7% (96.5-100%) presented infection with at least one parasite species ... | 1997 | 9177091 |
| prevalence of intestinal parasitic infection among children in two villages in lao pdr. | the prevalence of intestinal parasitic infection among 128 children under 15 years old in two villages in khammouane province, southeastern lao pdr, was investigated. overall prevalence of helminth infection was 77.3%; the prevalence was 64.8% in children under 6 years, 88.5% in those aged 6-10 years and 81.8% in the age group above 11 years. the prevalent helminths found in the subjects were ascaris lumbricoides (48.4%), trichuris trichiura (43.8%), hookworm (37.5%) and opisthorchis viverrini ( ... | 1996 | 9185270 |
| ascariasis and hookworm. | ascariasis and hookworm (ancylostomiasis) remain the most common intestinal nematodes in the world with significant economic, social, and medical impact. an understanding of the transmission and pathogenesis of ascariasis and hookworm are necessary to recognize their clinical manifestations and to manage the pulmonary sequelae of infection. transmission occurs predominantly in the tropics and rural areas where there is suboptimal sanitation, personal hygiene, and education regarding these parasi ... | 1997 | 9195678 |
| effect of intestinal helminthiasis on school attendance by early primary schoolchildren. | stool examination of 249 early primary schoolchildren at 2 schools in north-eastern peninsular malaysia revealed that 73 were infected with ascaris lumbricoides, 103 with trichuris trichiura, and 18 with hookworms. infected children were treated with a single dose of 400 mg of albendazole. the school attendance records during a 60 d period before treatment and 2 consecutive 60 d periods after treatment were examined. the absenteeism rate did not improve more among infected children after treatme ... | 1997 | 9196748 |
| in vitro anthelmintic activity of root-tuber extract of flemingia vestita, an indigenous plant in shillong, india. | the in vitro activity of root-tuber-peel extract of flemingia vestita, an indigenous plant consumed by the natives in northeast india, was tested against helminth parasites. live parasites (nematode: ascaris suum from pigs, a. lumbricoides from humans, ascaridia galli and heterakis gallinarum from domestic fowl; cestode: raillietina echinobothrida from domestic fowl; trematode: paramphistomum sp. from cattle) were collected in 0.9 % physiological buffered saline (pbs) and maintained at 37 +/- 1 ... | 1997 | 9197399 |
| cross-reactivity between ige-binding proteins from anisakis, german cockroach, and chironomids. | anisakis simplex larvae parasitize animals used as seafood and can produce a specific immune response in man. the ingestion of seafood contaminated with stage three of a. simplex larvae can induce a specific ige response with clinical symptoms, usually urticaria, even if the fish is cooked before ingestion and the invasive infestation power destroyed by heating. our preliminary studies showed a strong association of a. simplex sensitization with ascaris lumbricoides, daphnia, chironomid spp., at ... | 1997 | 9201362 |
| frequency of intestinal parasites in adult cancer patients in mexico. | approximately 28% of the mexican population has intestinal parasites. oncologic patients receiving chemotherapy should have a coproparasitoscopic study to avoid disseminated parasitic infections. the frequency of intestinal parasites, including cryptosporidium and isospora, was evaluated in 100 diarrheic (ds) and 100 formed stools (fs) from adult patients recently diagnosed with cancer, using wet mounts stained with kinyoun, saccharose and znso4 procedures stained with lugol's iodine. seven pati ... | 1997 | 9204612 |
| ascariasis in the subdistrict of cavacos, municipality of alterosa (mg), brazil: effect of mass treatment with albendazole on the intensity of infection. | the clinical and epidemiologic aspects of infection with ascaris lumbricoides were studied in a random stratified sample of the population of the subdistrict of cavacos, municipality of alterosa (minas gerais, brazil). the effect of mass treatment with a single dose of albendazole on the prevalence and intensity of infection was also studied six months later in the same population. during the first phase of the study, a questionnaire was applied to 248 individuals to obtain information about the ... | 1996 | 9216107 |
| clinical improvement of asthma after anthelminthic treatment in a tropical situation. | intestinal helminths are among the most common infectious organisms of humans, particularly in tropical regions, and can induce the production of large quantities of ige antibody. part of this response is directed against the helminths own antigens, but a polyclonal stimulation also occurs that may increase the allergic reactivity toward environmental allergens. the importance of this in the symptomatology of asthma in these regions is, however, uncertain. in the present study we evaluated the e ... | 1997 | 9230725 |
| nitazoxanide in the treatment of cryptosporidial diarrhea and other intestinal parasitic infections associated with acquired immunodeficiency syndrome in tropical africa. | eighteen patients hospitalized with intestinal parasitic infections associated with diarrhea and dehydration completed a study of nitazoxanide in the treatment of cryptosporidium parvum and other intestinal parasitic infections. seventeen of the 18 patients were positive for human immunodeficiency virus. twelve patients were diagnosed with clinical stage 4 acquired immunodeficiency syndrome (aids) according to the 1990 world health organization proposed clinical classification system and cryptos ... | 1997 | 9230795 |
| evaluation of a stage-specific proteolytic enzyme of schistosoma mansoni as a marker of exposure. | cercarial elastase (ce) is one of the first proteins released in the host by invading schistosome cercariae. an enzyme-linked immunosorbent assay (elisa)-formatted immunoassay has been developed to detect antibodies to the stage-specific ce antigen of schistosoma mansoni as marker of exposure. we have evaluated this test system as an epidemiologic tool, using well-characterized sera collected from s. mansoni- and s. haematobium-infected subjects residing in endemic areas and from control subject ... | 1997 | 9230801 |
| morbidity and mortality due to ascariasis: re-estimation and sensitivity analysis of global numbers at risk. | this paper presents estimates of the global numbers of people at risk from morbidity related to infection with ascaris lumbricoides and the numbers of deaths from this infection. morbidity is classified into 4 types: deficits in growth and fitness which are contemporaneous with infection, or permanent, overt acute illness of mild to moderate severity, and complications involving hospitalization. the estimation of morbidity is based on theoretical models of parasite distributions developed in pre ... | 1997 | 9236818 |
| [ecoepidemiology of ascaris lumbricoides in an endemic area and its relation with blood groups]. | 185 children 1 to 14 years old living in the suburb of san rafael (zulia state, venezuela) were selected for this study with the following results: eggs of ascaris lumbricoides in the stool samples before administration of a drug to the children and the worms recovered after drug, induced expulsion, showed a high aggregation (k = 0.115 and k = 0.122, respectively); the aggregation of the recovered worms was more intense in girls (k = 0.083), than in boys (k = 0.220); among the blood groups, a. l ... | 1994 | 9239849 |
| [new interpretation of the quantitative fecal examination in humans]. | the pattern of spatial disposition of eggs of the parasites (ascaris lumbricoides, trichuris trichiura and ancylostomidae) into the faeces was found overdispersed, independently of the technique of coprodiagnosis used (direct smear without standarisation, stoll, shore & lynch, kato-katz and mc master). therefore, differences were not detected in the interpretation of the results among the techniques at the population level, in quantitative studies. in an overdispersed pattern, only few hosts are ... | 1994 | 9239850 |
| biliary ascariasis. | | 1997 | 9242760 |
| trichinosis associated with carcinoma of the tongue: case report. | a rare presentation of trichinella spiralis with squamous cell carcinoma of the tongue is reported. the possible carcinogenic potential of trichinosis and its management are discussed. | 1997 | 9247946 |
| cut-1-like genes of ascaris lumbricoides. | three genomic fragments homologous to cut-1 of caenorhabditis elegans (c. elegans) have been identified in the intestinal parasitic nematode ascaris lumbricoides (a. lumbricoides). two of these fragments identify one region of the a. lumbricoides genome; they are separated by 8-9 kb and have opposite orientation, with the direction of transcription converging toward the center of the region. the third gene, which has been studied more completely, is in a different region of the genome separated ... | 1997 | 9249070 |
| anthelminthic treatment raises plasma iron levels but does not decrease the acute-phase response in jakarta school children. | the study was conducted to investigate the impact of intestinal helminthiasis and treatment on iron status and acute phase response (apr) among urban indonesian primary school children, aged 8-11 years old. the prevalence of helminthiasis among these children was; ascaris lumbricoides, 81.6%; trichuris trichiura, 88.3%; and mixed infection of a. lumbricoides and t. trichiura, 70.0%. of 120 children enrolled in the investigation, 59 received a single 400 mg dose of albendazole, and 61 received a ... | 1996 | 9253878 |
| [liver abscess caused by ascaris lumbricoides. memorandum about hepatic changes in adopted children from developing countries]. | | 1997 | 9254323 |
| prevalence and etiology of intestinal parasites in lebanon. | as there are no studies done on the prevalence of intestinal parasites in lebanon since 1967, this study was undertaken to reveal the current patterns of intestinal parasitic infestations in lebanese patients from two geographic regions: beirut and tripoli. analysis was based on 33,253 stool specimens examined at the american university of beirut medical center (auh) and 11,611 specimens examined at the islamic hospital (ih) in tripoli over five and three years, respectively. the prevalence of i ... | 1996 | 9260400 |
| [profile of intestinal helminthiases in school aged children in the city of abidjan]. | feces of 1001 school children aged from 4 to 15 years were examined as an epidemiological investigation. direct analyses were completed by kato and ritchie methods. the outcome was the global prevalence of intestinal helminthiasis in school age children in the abidjan area is 36.5%. male subjects are more infected than females. the most infected group is aged from 12 to 13 years and the less infected from 4 to 5 years. the frequent parasite species are trichuris trichiura (23.4%), ascaris lumbri ... | 1997 | 9264753 |
| serum retinol concentrations and schistosoma mansoni, intestinal helminths, and malarial parasitemia: a cross-sectional study in kenyan preschool and primary school children. | parasitic determinants of serum retinol concentrations were studied in 159 preschool (0.25-5.1 y) and 695 primary school (9.2-17 y) children in western kenya. mean serum retinol was 0.63 micromol/l in preschool and 0.94 micromol/l in primary school children; 62% and 24%, respectively, had serum retinol < 0.70 micromol/l. serum retinol was lower in boys than in girls among both preschool (p = 0.04) and primary school children (p = 0.0001). schistosoma mansoni, ascaris lumbricoides, hookworm, and ... | 1997 | 9280190 |