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Salinger AP, Charles I, Francis N, Batagol B, Meo-Sewabu L, Nasir S, Bass A, Habsji H, Malumu L, Marzaman L, Prescott MF, Jane Sawailau M, Syamsu S, Taruc RR, Tela A, Vakarewa I, Wilson A, Sinharoy SS. "People are now working together for a common good": The effect on social capital of participatory design for community-level sanitation infrastructure in urban informal settlements. WORLD DEVELOPMENT 2024; 174:106449. [PMID: 38304853 PMCID: PMC10759637 DOI: 10.1016/j.worlddev.2023.106449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/26/2023] [Indexed: 02/03/2024]
Abstract
Communities with higher levels of social capital perform better than communities with lower social capital in community-level water and sanitation interventions and have better health outcomes. Although research recommends bolstering social capital to improve intervention outcomes, few studies provide empirical evidence on the effect of intervention activities on social capital. This study aimed to evaluate the effect of participatory design and community engagement activities on social capital among urban informal settlements in Suva, Fiji and Makassar, Indonesia enrolled in the Revitalizing Informal Settlements and their Environments trial using the Short Adapted Social Capital Assessment Tool. We performed confirmatory factor analyses (CFA) to test tool performance and built structural equation models to assess intervention effect on CFA-informed, sub-scale scores for cognitive and structural social capital. Qualitative in-depth interviews in Fiji and Indonesia and focus group discussions in Fiji provided nuanced understanding of intervention effects on social capital from residents' perspectives. Results confirmed the hypothesized two-factor solution but revealed differences by country and by gender in Indonesia. The intervention appeared positively related to cognitive social capital among men and women in Indonesia and negatively related to cognitive and structural social capital among men and women in Fiji. While effect sizes were small and cluster-adjustment for a small number of settlements yielded non-significant effects, trends were consistent across models and bivariate analyses and were corroborated by qualitative findings. Several contextual factors may explain these results, including timing and duration of intervention activities and influence of COVID-19. Qualitative data suggested that the relationship between participatory design and social capital may be bidirectional, helping to explain why certain settlements appeared to be better equipped to benefit from intervention activities. Practitioners and program designers should carefully consider the social pre-conditions of communities in which they intend to work to optimize program outcomes and avoid unintended consequences.
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Affiliation(s)
| | - Isabel Charles
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Naomi Francis
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
| | - Becky Batagol
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Faculty of Law, Monash University, Melbourne, VIC, Australia
| | - Litea Meo-Sewabu
- School of Law & Social Sciences, The University of the South Pacific, Suva, Fiji
- School of Social Sciences, Western Sydney University, Pernith, NSW, Australia
| | - Sudirman Nasir
- Faculty of Public Health, Universitas Hasanuddin, Makassar, Indonesia
- Universitas Hasanuddin, Centre of Excellence for Interdisciplinary and Sustainability Sciences, Makassar, Indonesia
| | - Audra Bass
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Hamdan Habsji
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Indonesia Team, Revitalizing Informal Settlements and their Environments (RISE), Makassar, Indonesia
| | - Losalini Malumu
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Live & Learn Environmental Education, Suva, Fiji
| | - Liza Marzaman
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Indonesia Team, Revitalizing Informal Settlements and their Environments (RISE), Makassar, Indonesia
| | - Michaela F. Prescott
- Monash Art, Design, & Architecture, Monash University, Melbourne, VIC, Australia
| | - Mere Jane Sawailau
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Live & Learn Environmental Education, Suva, Fiji
| | - Syaidah Syamsu
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Indonesia Team, Revitalizing Informal Settlements and their Environments (RISE), Makassar, Indonesia
| | - Ruzka R. Taruc
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Indonesia Team, Revitalizing Informal Settlements and their Environments (RISE), Makassar, Indonesia
| | - Autiko Tela
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- School of Public Health and Primary Care, Fiji National University, Suva, Fiji
| | - Isoa Vakarewa
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Live & Learn Environmental Education, Suva, Fiji
| | - Alexander Wilson
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Live & Learn Environmental Education, Suva, Fiji
| | | | - on behalf of the RISE Consortium
- Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Monash Sustainable Development Institute, Monash University, Melbourne, VIC, Australia
- Faculty of Law, Monash University, Melbourne, VIC, Australia
- School of Law & Social Sciences, The University of the South Pacific, Suva, Fiji
- Faculty of Public Health, Universitas Hasanuddin, Makassar, Indonesia
- Universitas Hasanuddin, Centre of Excellence for Interdisciplinary and Sustainability Sciences, Makassar, Indonesia
- Indonesia Team, Revitalizing Informal Settlements and their Environments (RISE), Makassar, Indonesia
- Live & Learn Environmental Education, Suva, Fiji
- Monash Art, Design, & Architecture, Monash University, Melbourne, VIC, Australia
- School of Public Health and Primary Care, Fiji National University, Suva, Fiji
- School of Social Sciences, Western Sydney University, Pernith, NSW, Australia
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Noor Z, Hasan MM, Gazi MA, Hossaini F, Haque NMS, Palit P, Fahim SM, Das S, Mahfuz M, Marie C, Petri WA, Haque R, Ahmed T. Immune modulation by nutritional intervention in malnourished children: Identifying the phenotypic distribution and functional responses of peripheral blood mononuclear cells. Scand J Immunol 2023; 98:e13302. [PMID: 38441327 DOI: 10.1111/sji.13302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/29/2023] [Accepted: 05/21/2023] [Indexed: 03/07/2024]
Abstract
Malnourished children are susceptible to an increased risk of mortality owing to impaired immune functions. However, the underlying mechanism of altered immune functions and its interaction with malnutrition is poorly understood. This study investigates the immune function and evaluates the effect of a particular nutritional intervention on the immune cells of undernourished children. Stunted (LAZ <-2) and at-risk of being stunted (length-for-age Z-scores, LAZ <-1 to -2) children aged between 12 and 18 months were enrolled and were provided with the daily nutritional intervention of one egg and 150 mL cow's milk for 90 days. Peripheral blood mononuclear cells (PBMCs) were isolated at enrolment and upon completion of the intervention. Phenotypic profiles for CD3+ cells, CD4+ cells, CD8+ cells, NKT cells, and B cells were similar in both cohorts, both before and after the intervention. However, activated B cells (CD25+) were increased after nutritional intervention in the at-risk of being stunted cohort. Several pro-inflammatory cytokines, IL-6, IFN-γ, and TNF-α, were elevated in the stunted children following the nutritional intervention. The results of the study indicate that nutritional intervention may have a role on activated B cells (CD25+) s in children who are at-risk of being stunted and may alter the capacity of PBMC to produce inflammatory cytokines in stunted children.
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Affiliation(s)
- Zannatun Noor
- Infectious Diseases Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Mehedi Hasan
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Amran Gazi
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Farzana Hossaini
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Nur Muhammad Shahedul Haque
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Parag Palit
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia, USA
| | - Shah Mohammad Fahim
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Subhasish Das
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Mustafa Mahfuz
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Chelsea Marie
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - William A Petri
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Rashidul Haque
- Infectious Diseases Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Center for Diarrheal Disease and Research, Bangladesh (icddr,b), Dhaka, Bangladesh
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Jiménez P, Muñoz M, Ramírez JD. An update on the distribution of Blastocystis subtypes in the Americas. Heliyon 2022; 8:e12592. [PMID: 36619449 PMCID: PMC9816782 DOI: 10.1016/j.heliyon.2022.e12592] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/07/2022] [Accepted: 12/05/2022] [Indexed: 12/25/2022] Open
Abstract
Blastocystis is an intestinal protist that presents worldwide distribution, colonizes animal and human hosts, and is classified into at least 34 ribosomal subtypes (STs). Herein, we conducted an update based on studies reporting Blastocystis-positive samples obtained from diverse hosts in the Americas. We described the distribution throughout the continent by assembling maps representing the distribution of STs and the most important 18S-rRNA alleles. Thirty-nine articles from the previous study, "A summary of Blastocystis subtypes in North and South America," and forty-one additional articles from March 2019 to March 2022 were considered. The most common subtype described was ST3, representing the highest percentage of positive samples. Other recently identified STs include ST12, ST13, and ST16 in humans, and ST10, ST14, and ST17 in animals. Novel subtypes have also been described in this continent. We assembled and updated the distribution of Blastocystis in the Americas. We hope this delivers new understandings and knowledge of this microorganism's prevalence and genetic diversity.
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Affiliation(s)
- Paula Jiménez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Marina Muñoz
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia,Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-based Medicine, Icahn School of Medicine at Mount Sinai, New York City, NY, USA,Corresponding author.,
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Gazi MA, Alam MA, Fahim SM, Wahid BZ, Khan SS, Islam MO, Hasan MM, Hasan SMT, Das S, Mahfuz M, Haque R, Ahmed T. Infection With Escherichia Coli Pathotypes Is Associated With Biomarkers of Gut Enteropathy and Nutritional Status Among Malnourished Children in Bangladesh. Front Cell Infect Microbiol 2022; 12:901324. [PMID: 35873159 PMCID: PMC9299418 DOI: 10.3389/fcimb.2022.901324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/02/2022] [Indexed: 11/26/2022] Open
Abstract
Escherichia coli (E. coli) pathotypes are the most common cause of diarrhea, especially in developing countries. Environmental Enteric Dysfunction (EED) is presumed to be the result of infection with one or more pathotypes and can affect intestinal health and childhood growth. We sought to investigate the association of E. coli pathotypes infection with biomarkers of EED and nutritional status among slum-dwelling malnourished children in Bangladesh. This study comprised a total of 1050 stunted and at risk of stunting children. TaqMan Array Card assays were used to determine the presence of E. coli pathotypes in feces. Prevalence of infection with EAEC was highest (68.8%) in this cohort of children, followed by EPEC (55.9%), ETEC (44%), Shigella/EIEC (19.4%) and STEC (3.2%). The levels of myeloperoxidase and calprotectin were significantly higher in EAEC (P=0.02 and P=0.04), EPEC (P=0.02 and P=0.03) and Shigella/EIEC (P=0.05 and P=0.02) positive participants while, only calprotectin was significantly higher in ETEC (P=0.01) positive participants. Reg1B was significantly higher in participants with EAEC (P=0.004) while, neopterin levels were significantly lower in ETEC (P=0.003) and Shigella/EIEC (P=0.003) positive cases. A significant positive relationship was observed between EAEC and fecal levels of Reg1B (β = 0.28; 95% CI = 0.12, 0.43; p-value<0.001). Besides, ETEC was found to be positively and significantly associated with the levels of calprotectin (β = 0.14; 95 percent CI = 0.01, 0.26; p-value=0.037) and negatively with neopterin (β = -0.16; 95% CI = -0.30, -0.02; p-value=0.021). On the other hand, infection with EPEC was found to be negatively associated with length-for-age (β = -0.12; 95% CI = -0.22, -0.03; p-value=0.011) and weight-for-age (β = -0.11; 95% CI = -0.22, -0.01; p-value=0.037). The study findings suggest that infection with certain E. coli pathotypes (EAEC and ETEC) influences gut health and EPEC is associated with linear growth and underweight in Bangladeshi children.
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Affiliation(s)
- Md Amran Gazi
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Ashraful Alam
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shah Mohammad Fahim
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Barbie Zaman Wahid
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shaila Sharmeen Khan
- Infectious Diseases Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Ohedul Islam
- Infectious Diseases Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Md Mehedi Hasan
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - S M Tafsir Hasan
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Subhasish Das
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Mustafa Mahfuz
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Rashidul Haque
- Infectious Diseases Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Tahmeed Ahmed
- Nutrition and Clinical Services Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,James P. Grant School of Public Health, BRAC University, Dhaka, Bangladesh.,Department of Global Health, University of Washington, Seattle, WA, United States
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Zou Y, Wang YG, Liu ZL, Guo AJ, Li XL, Shi ZQ, Zhu XQ, Han XM, Wang S. Echinococcosis Is Associated with the Increased Prevalence of Intestinal Blastocystis Infection in Tibetans and Host Susceptibility to the Blastocystis in Mice. BIOLOGY 2022; 11:biology11050773. [PMID: 35625501 PMCID: PMC9138466 DOI: 10.3390/biology11050773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022]
Abstract
Blastocystis is a common human intestinal protozoan parasite. Little is known about its prevalence in echinococcosis. This study tested whether Echinococcus multilocularis infection would increase host susceptibility to Blastocystis. A total of 114 fecal samples (68 hydatid disease patients and 46 healthy people) were collected from Tibetans in the Qinghai province in China. The presence of Blastocystis was identified by sequencing of the small subunit (SSU) rRNA gene. Balb/c mice were co-infected with Blastocystis and E. multilocularis and tested for host susceptibility to Blastocystis. The overall Blastocystis prevalence was 12.3%; 16.2% in the patients and 4.4% in healthy people (p < 0.05). Sequence analysis identified three known Blastocystis genotypes, including ST1, ST2, and ST3, and one unknown genotype. Experimental dual infection significantly reduced mouse survival rate (20%), induced more severe signs, and increased intestinal damages with a higher intestinal colonization level of Blastocystis. The mouse model showed that E. multilocularis infection increases host susceptibility to Blastocystis. Our study shows a significantly higher prevalence of Blastocystis in patients with liver echinococcosis and reveals that non-intestinal E. multilocularis infection increases host susceptibility to the Blastocystis. Our results highlight that E. multilocularis infection is associated with Blastocystis. These findings remind us that more attention should be paid to the gut health of the patients with a helminth infection during clinical patient care.
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Affiliation(s)
- Yang Zou
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
| | - Yu-Gui Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
| | - Zhong-Li Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
| | - Ai-Jiang Guo
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
| | - Xiao-Lu Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
| | - Zhi-Qi Shi
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
| | - Xing-Quan Zhu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
| | - Xiu-Min Han
- Qinghai Clinical Research Institute of Hydatid Disease, Qinghai Provincial People’s Hospital, Xining 810007, China
- Correspondence: (X.-M.H.); (S.W.); Tel.: +86-931-834-2489 (S.W.)
| | - Shuai Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China; (Y.Z.); (Y.-G.W.); (Z.-L.L.); (A.-J.G.); (X.-L.L.); (Z.-Q.S.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 210009, China
- Correspondence: (X.-M.H.); (S.W.); Tel.: +86-931-834-2489 (S.W.)
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