نتایج جستجو برای: helminth infection
تعداد نتایج: 458581 فیلتر نتایج به سال:
Helminth parasite infection of the canine and feline respiratory tract is uncommon in North America. This article reviews the prevalence, etiology, diagnosis, and treatment of helminth parasite infections in dogs and cats. The diagnosis of parasitic infections caused by helminth parasites of the respiratory tract of cats and dogs is infrequent in most parts of North America. Several fecal exami...
BACKGROUND Helminth parasites have been reported to have beneficial immunomodulatory effects in patients with allergic and autoimmune conditions and detrimental consequences in patients with tuberculosis and some viral infections. Their role in coinfection with respiratory viruses is not clear. OBJECTIVE Here we investigated the effects of strictly enteric helminth infection with Heligmosomoi...
Intestinal helminth infections during pregnancy are associated with adverse outcomes including low birth weight and prenatal mortality. The infections are a major public health problem in developing countries. A hospital based survey was undertaken for six months to determine the infection prevalence, intensity, and risk factors. The study involved expectant women attending antenatal clinic. St...
Malaria and helminth infections often coincide in the same tropical regions. Studies of the consequences of helminth and malaria coinfection in humans have been few and are mainly epidemiological, with little information on cellular immune responses. In this study, we investigated the antimalarial immune responses of Ghanaian children living in a rural area with a high prevalence of both helmin...
Infection with intestinal helminths results in immunological changes that influence co-infections, and might influence fecundity by inducing immunological states affecting conception and pregnancy. We investigated associations between intestinal helminths and fertility in women, using 9 years of longitudinal data from 986 Bolivian forager-horticulturalists, experiencing natural fertility and 70...
Parasitic helminth worms, such as Schistosoma mansoni, are endemic in regions with a high prevalence of tuberculosis (TB) among the population. Human studies suggest that helminth coinfections contribute to increased TB susceptibility and increased rates of TB reactivation. Prevailing models suggest that T helper type 2 (Th2) responses induced by helminth infection impair Th1 immune responses a...
OBJECTIVE Several co-infections have been shown to impact the progression of HIV-1 infection. We sought to determine if treatment of helminth co-infection in HIV-1-infected adults impacted markers of HIV-1 disease progression. DESIGN To date, there have been no randomized trials to examine the effects of soil-transmitted helminth eradication on markers of HIV-1 progression. METHODS A random...
Foxp3(+) regulatory T (Treg) cells are key immune regulators during helminth infections, and identifying the mechanisms governing their induction is of principal importance for the design of treatments for helminth infections, allergies and autoimmunity. Little is yet known regarding the co-stimulatory environment that favours the development of Foxp3(+) Treg-cell responses during helminth infe...
Parasitic-infection studies on rhesus macaque monkeys have shown juvenile animals to be more susceptible to infection than adults, but the immunological mechanism for this is not known. In this study, we investigated the age-dependent genesis of helminth-induced type 2 immune responses using adult (6-8-wk-old) and juvenile (21-28-d-old) mice. Following infection with the parasitic nematode Nipp...
Cross-sectional studies of the relationship between helminth infection and cognitive function can be informative in ways that treatment studies cannot. However, interpretation of results of many previous studies has been complicated by the failure to control for many potentially confounding variables. We gave Tanzanian schoolchildren aged 9-14 a battery of 11 cognitive and three educational tes...
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