Margaret Kosek, Tahmeed Ahmed, Zulfiqar A Bhutta, Laura E. Caulfield et al.
BACKGROUND: Environmental enteropathy (EE), the adverse impact of frequent and numerous enteric infections on the gut resulting in a state of persistent immune activation and altered permeability, has been proposed as a key determinant of growth failure in children in low- and middle-income populati...
Benjamin F. Arnold, Clair Null, Stephen P. Luby, Leanne Unicomb et al.
INTRODUCTION: Enteric infections are common during the first years of life in low-income countries and contribute to growth faltering with long-term impairment of health and development. Water quality, sanitation, handwashing and nutritional interventions can independently reduce enteric infections ...
Caitlin Naylor, Miao Lu, Rashidul Haque, Dinesh Mondal et al.
BACKGROUND: Environmental enteropathy (EE) is a subclinical enteric condition found in low-income countries that is characterized by intestinal inflammation, reduced intestinal absorption, and gut barrier dysfunction. We aimed to assess if EE impairs the success of oral polio and rotavirus vaccines ...
Rashidul Haque, Nasir Uddin Mollah, Ibne Karim M. Ali, Khorshed Alam et al.
A noninvasive diagnostic test for amebic liver abscess is needed, because amebic and bacterial abscesses appear identical on ultrasound or computer tomography and because it is rarely possible to identify Entamoeba histolytica in stool specimens from patients with amebic liver abscess. Here we repor...
Arjun S. Raman, Jeanette L. Gehrig, Siddarth Venkatesh, Hao-Wei Chang et al.
Characterizing the organization of the human gut microbiota is a formidable challenge given the number of possible interactions between its components. Using a statistical approach initially applied to financial markets, we measured temporally conserved covariance among bacterial taxa in the microbi...
Motohiro Iseki, Ibne Karim M. Ali, Momammad B. Hossain, Viqar Zaman et al.
Since the genotype of human Blastocystis hominis isolates is highly polymorphic, PCR-based genotype classification using known sequenced-tagged site (STS) primers would allow the identification or classification of different genotypes. Five populations of human B. hominis isolates obtained from Japa...
Caryn Bern, Allen W. Hightower, Rajib Chowdhury, Mustakim Ali et al.
Since 1990, South Asia has experienced a resurgence of kala-azar (visceral leishmaniasis). To determine risk factors for kala-azar, we performed cross-sectional surveys over a 3-year period in a Bangladeshi community. By history, active case detection, and serologic screening, 155 of 2,356 residents...
Ibne Karin M. Ali, Mohammad Bakhtiar Hossain, Shantanu Roy, Patrick F. Ayeh‐Kumi et al.
Entamoeba moshkovskii cysts are morphologically indistinguishable from those of the disease-causing species E. histolytica and the nonpathogenic E. dispar. Although sporadic cases of human infection with E. moshkovskii have been reported, the organism is considered primarily a free-living amoeba. No...
Neelendu Dey, Vitas E. Wagner, Laura V. Blanton, Jiye Cheng et al.
To understand how different diets, the consumers’ gut microbiota and the enteric nervous system (ENS) interact to regulate gut motility, we developed a gnotobiotic mouse model that mimics short-term dietary changes that happen when humans are traveling to places with different culinary traditions. S...
Rashidul Haque, Shantanu Roy, Mamun Kabir, Suzanne Stroup et al.
Giardia lamblia is the most prevalent human intestinal protozoan worldwide, but only a minority of infections result in diarrhea. We tested here whether the 2 major G. lamblia genotypes, assemblages A and B, differ in their propensity to cause disease. To determine whether an association exists betw...
Rashidul Haque, Dinesh Mondal, Beth D. Kirkpatrick, Selim Akther et al.
The epidemiology, clinical features, nutritional status, and causative agents of diarrhea were studied in 289 Bangladeshi children (147 boys and 142 girls) 2-5 years old. The use of improved diagnostic tests for amebiasis enabled for the first time analysis of the contribution of Entamoeba histolyti...
Rashidul Haque, Ibnekarim M. Ali, R. Bradley Sack, Barry M. Farr et al.
Amebiasis is the third leading parasitic cause of death worldwide, and it is not known whether immunity is acquired from a previous infection. An investigation was done to determine whether protection from intestinal infection correlated with mucosal or systemic antibody responses to the Entamoeba h...
Rashidul Haque, Laurie M. Neville, P Hahn, William A. Petri
Humans are infected by two morphologically identical species of Entamoeba: Entamoeba histolytica causes amebic colitis and liver abscess, and Entamoeba dispar is noninvasive. Several weeks of culture and isoenzyme (zymodeme) analysis are required to differentiate E. histolytica from E. dispar. Here ...
Jason L. Weirather, Selma M. B. Jerônimo, Shalini Gautam, Shyam Sundar et al.
The Leishmania species cause a variety of human disease syndromes. Methods for diagnosis and species differentiation are insensitive and many require invasive sampling. Although quantitative PCR (qPCR) methods are reported for leishmania detection, no systematic method to quantify parasites and dete...
Rashidul Haque, Dinesh Mondal, Priya Duggal, Mamun Kabir et al.
The contribution of amebiasis to the burden of diarrheal disease in children and the degree to which immunity is acquired from natural infection were assessed in a 4-year prospective observational study of 289 preschool children in an urban slum in Dhaka, Bangladesh. Entamoeba histolytica infection ...