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Herrera-Añazco P, Benites-Meza JK, Caira-Chuquineyra B, Fernandez-Guzman D, Hernandez-Bustamante EA, Benites-Zapata VA. Ethnic Minority Participation in Clinical Trials from Latin America and the Caribbean: A Scoping Review. J Immigr Minor Health 2024; 26:604-622. [PMID: 38294634 DOI: 10.1007/s10903-023-01578-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2023] [Indexed: 02/01/2024]
Abstract
We summarize the clinical trials (CTs) main characteristics, including members of ethnic minorities from Latin America. We carried out a systematic search in six databases. We made a descriptive synthesis of CTs, summarizing the characteristics, interventions, main findings, results, and conclusions reported. 4411 studies were acquired in search strategy, leaving 24 CTs in the final selection. Of these, ten were randomized, four were non-randomized, and the remainder had other designs. Most of the studies were carried out in the population of infants and children (08), ten of the studies included only women, and two studies included men. Nine studies were conducted in Mexico, with the Mayan ethnic minority being mostly evaluated (05). In only 15 it was mentioned that their research was approved by a research ethics committee. Finally, half of the CTs reported funding from international agencies and third reported funding from government agencies. Our results show that that CTs in ethnic minorities are limited and reduced to a few native peoples of the continent.
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Affiliation(s)
| | - Jerry K Benites-Meza
- Sociedad Científica de Estudiantes de Medicina de La Universidad Nacional de Trujillo, Trujillo, Peru
- Grupo Peruano de Investigación Epidemiológica, Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | | | | | - Enrique A Hernandez-Bustamante
- Sociedad Científica de Estudiantes de Medicina de La Universidad Nacional de Trujillo, Trujillo, Peru
- Grupo Peruano de Investigación Epidemiológica, Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Vicente A Benites-Zapata
- Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru.
- Vicerrectorado de Investigación, Universidad San Ignacio de Loyola, Campus 2, avenida La Fontana 750, La Molina, Lima, Peru.
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Motadi SA, Mbhenyane XG, Zuma MK, Freeland Graves JH. Effects of Cucurbita Moschata squash (Butternut) seed paste in improving zinc and iron status in children attending Early Childhood Development centres in Limpopo province, South Africa. PLoS One 2024; 19:e0300845. [PMID: 38635826 PMCID: PMC11025940 DOI: 10.1371/journal.pone.0300845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/04/2024] [Indexed: 04/20/2024] Open
Abstract
Cucurbita moschata (Butternut squash) seeds are a rich source of nutrition containing nutrients including iron, zinc, copper, calcium, potassium, and phosphorus. The aim of this study was to determine if Cucurbita Moschata squash seed paste improves zinc and iron status, anthropometric status, and dietary intake in preschool children. A pretest-posttest control group trial using cluster randomisation was conducted over 6 months. Four preschools were randomly assigned to receive 100 g of intervention or 100 g of a placebo as the control to enhance iron and zinc status. A total of 276 preschool children were recruited from eight government registered Early Childhood Development centres in Limpopo province, South Africa. The control group consumed Cucurbita moschata flesh twice-weekly, while the intervention group consumed Cucurbita moschata seed paste twice-weekly during a six-month period. Iron (serum iron, transferrin, transferrin saturation, ferritin) and zinc (serum zinc) status and anthropometric indices such as weight, height and mid upper arm circumference for children were evaluated at baseline and the endpoint. Iron and zinc-rich food consumption was measured using a 24-hour dietary recall and food record during the study, and dietary intake was estimated using a food frequency questionnaire which was conducted at the beginning and endpoint. The intervention group significantly improved in the mean serum iron 0.23 μg/dL (95% CI: 0.11;0.33); ferritin 0.21μg/dL (95% CI: 0.13;0.39), transferrin saturation 0.33% (0.23;0.74) and zinc 0.16 μmol/dl (95% CI: 0.13;0.25) at the end of the study. In addition, the intervention group exhibited greater mean weight for age of 0.13 z-score (95% CI: 0.28; 0.34) and weight for height of 0.04 z-score (95% CI: 0.12,0.05), as well as the consumption of iron (p < 0,001), zinc (p < 0,001), and vitamin C (p < 0.001). At the end of the trial, fiber (p < 0.001), riboflavin (p = 0.001), vitamin B6 (p < 0.001), and vitamin B12 (p < 0.001) were significantly higher in the control group. Thus, the inclusion of intervention in the diet of children in an impoverished area of South Africa improved the iron and zinc status of these children. This supplement could be a cost effective and sustainable approach to improve nutrient status in rural South Africa. Trial registration: Pan African Clinical Trial Registry (PACTR202308740458863).
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Affiliation(s)
- Selekane Ananias Motadi
- Division of Human Nutrition, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Department of Nutrition, Faculty of Health Sciences, University of Venda, Thohoyandou, South Africa
| | - Xikombiso Gertrude Mbhenyane
- Division of Human Nutrition, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Mthokozisi Kwazi Zuma
- Division of Human Nutrition, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Smallholder Agricultural Development, Agricultural Research Council, Pretoria, South Africa
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Chechani B, Roat P, Hada S, Yadav DK, Kumari N. Psidium guajava: An Insight into Ethnomedicinal Uses, Phytochemistry, and Pharmacology. Comb Chem High Throughput Screen 2024; 27:2-39. [PMID: 37170987 DOI: 10.2174/1386207326666230426093315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/08/2022] [Accepted: 11/16/2022] [Indexed: 05/13/2023]
Abstract
BACKGROUND Psidium guajava (guava) is widely distributed in tropical and subtropical regions and adapted to various environmental conditions. Guava is an important economic fruit widely used as food and folk medicine. It contains flavonoids, alkaloids, tannins, triterpenoids, reducing sugars, essential oils, carotenoids, polyphenols, etc. The presence of triterpenoid acids such as guavacoumaric, ursolic, jacoumaric, guajavanoic, guavenoic, and Asiatic acids helps to develop novel drugs against various diseases. It is used traditionally for medicinal purposes, mainly for antioxidant, antimicrobial, antispasmodic, antidiabetic, anticancer, antiallergy, anti-inflammatory, and hepato-protective properties. OBJECTIVE The systematic literature study aims to summarize its botanical description, phytochemicals, pharmacological activities, and clinical trials. This review focuses on the plant's chemical composition and scientific approaches to human welfare. METHODS A systematic literature search was done on Psidium guajava through previous literature and online databases such as Google Scholar, Pubmed, Science Direct, etc., to explain its ethnomedicinal uses, phytochemistry, and pharmacological applications. RESULTS Previous literature studies of Psidium guajava suggest it can serve as antioxidant, antimicrobial, antispasmodic, antidiabetic, anticancer, anti-allergy, anti-inflammatory, and hepatoprotective effects. Successful clinical trials performed on the plant extracts against infantile rotaviral enteritis and infectious gastroenteritis showed future directions to work with the plant for clinical applications. CONCLUSION In this review, an attempt is made to show all literature studied, especially in phytochemistry, pharmacology, clinical trials and uses as traditional folk medicine around the world. The leaves have been used by folklore over the years to treat various ailments such as skin ulcers, diarrhoea, vaginal irritation, cough, conjunctivitis, etc. Further studies are required to explore more therapeutic remedies and to develop new medicines for future perspectives.
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Affiliation(s)
- Bhawna Chechani
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Priyanka Roat
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Sonal Hada
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Dinesh Kumar Yadav
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
| | - Neetu Kumari
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313001, India
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Takeda LN, Laurindo LF, Guiguer EL, Bishayee A, Araújo AC, Ubeda LCC, Goulart RDA, Barbalho SM. Psidium guajava L.: A Systematic Review of the Multifaceted Health Benefits and Economic Importance. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2021.2023819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Larissa Naomi Takeda
- Department of Biochemistry, School of Food and Technology of Marília, University of Marília, São Paulo, Brazil
| | - Lucas Fornari Laurindo
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília, São Paulo, Brazil
| | - Elen Landgraf Guiguer
- Department of Biochemistry, School of Food and Technology of Marília, University of Marília, São Paulo, Brazil
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília, São Paulo, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília, São Paulo, Brazil
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, Florida, USA
| | - Adriano Cressoni Araújo
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília, São Paulo, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília, São Paulo, Brazil
| | | | - Ricardo de Alvares Goulart
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília, São Paulo, Brazil
| | - Sandra Maria Barbalho
- Department of Biochemistry, School of Food and Technology of Marília, University of Marília, São Paulo, Brazil
- Department of Biochemistry and Pharmacology, School of Medicine, University of Marília, São Paulo, Brazil
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, University of Marília, São Paulo, Brazil
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Nurhasanah C, Idiana A, Santi P, Yushida Y. Comparative Analysis of Beet Juice and Red Guava Juice against Erythrocyte and Hematocrit Levels in Post-partum Women. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Post-partum physiological bleeding can cause post-partum mothers to experience anemia; often, post-partum mothers are limited by nutrient and fluid intake to keep the body strong and have ideal body weight.
AIM: The aim of the study is to knowing the difference between beet juice and Guava juice on erythrocyte and hematocrit (HTC) levels in post-partum mothers at Darul Imarah Health Center, Darul Imarah District, Aceh Besar District.
METHODS: This was a quasi-experimental study with a pre-post test design using a randomized controlled trial. The population of post-partum mothers in the Darul Imarah Health Center, Darul Imarah District, Aceh Besar District. The sample selection is purposive sampling with inclusion and exclusion criteria; the sample is 45 people.
RESULTS: The results showed differences in erythrocyte and HTC levels between before and after giving guava and iron (Fe) juices with a p-value of 0.00 <0.05. Beet juice increases the average erythrocytes and HTC levels higher than guava juice. There were significant differences in erythrocyte levels in the guava + Fe, beet + Fe, and control (Fe) treatment groups with a p-value of 0.001 <0.05. the difference in the average difference in erythrocyte levels between the guava and beet treatment groups was 0.03. The treatment group Bit + Fe had a higher mean erythrocyte level different than the guava + the treatment group and the control group (Fe). There was a significant difference in HTC levels in the guava + Fe, beet + Fe, and control (Fe) treatment groups with a p-value of 0.001 <0.05. the difference in the average difference in erythrocyte levels between the guava and beet treatment groups was 0.03. The treatment group Bit + Fe had a higher mean difference in HTC levels than the guava + the treatment group and the control group (Fe).
CONCLUSION: There is a significant difference in erythrocytes and HTC levels between before and after giving guava juice and beet juice to post-partum mothers with a p-value of 0.00 <0.05. Beet juice increases the average level of erythrocytes and HTC, which is higher than guava juice in post-partum mothers at the Darul Imarah Health Center.
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Roy Choudhury D, Nair Krishnapillai M, Nagalla B, Vijaya Kankipati R, Ghosh S, Buwade J, Fernandez‐Rao S. Guava with an institutional supplementary meal improves iron status of preschoolers: a cluster‐randomized controlled trial. Ann N Y Acad Sci 2020; 1492:82-95. [DOI: 10.1111/nyas.14556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/30/2020] [Accepted: 12/08/2020] [Indexed: 12/14/2022]
Affiliation(s)
| | | | | | | | - Sudip Ghosh
- Molecular Biology Division National Institute of Nutrition Hyderabad India
| | - Jagdish Buwade
- Behavioral Science Extension and Training Division National Institute of Nutrition (ICMR) Hyderabad India
| | - Sylvia Fernandez‐Rao
- Behavioral Science Extension and Training Division National Institute of Nutrition (ICMR) Hyderabad India
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Roy Choudhury D, Nair KM, Balakrishna N, Radhakrishna KV, Ghosh S, Fernandez Rao S. A food synergy approach in a national program to improve the micronutrient status of preschoolers: a randomized control trial protocol. Ann N Y Acad Sci 2018; 1438:40-49. [PMID: 30129973 DOI: 10.1111/nyas.13953] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 07/12/2018] [Accepted: 07/19/2018] [Indexed: 11/29/2022]
Abstract
Iron deficiency anemia (IDA) is a significant public health issue in India affecting nearly all vulnerable segments of the population. Causes of IDA include low consumption of iron-rich foods combined with poor iron bioavailability of nonheme iron sources. To date, interventions aimed at correcting IDA focus on increasing iron intake through iron supplementation or fortification strategies. In contrast, dietary diversification is a long-term sustainable approach to improve bioavailable iron intake. In this context, the inclusion of vitamin C-rich fruits in the regular diet has proven to improve iron absorption, but the effect on iron status is inconclusive. Considering the ongoing national program for preschoolers in India, we designed a cluster randomized controlled trial (RCT) to test the hypothesis that inclusion of vitamin C-rich fruit in a regular meal would improve iron absorption and lead to better child iron and micronutrient status, cognitive development, gut health, and growth while reducing morbidity. This paper illustrates a context-specific framework and activities to design and functionalize an open-label, three-arm cluster RCT to test a specific hypothesis. The results of this designed trial should generate evidence to inform policy on the effect of a food-based intervention on iron status.
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Affiliation(s)
- Dripta Roy Choudhury
- Molecular Biology Division, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
| | - Krishnapillai Madhavan Nair
- Micronutrient Research Group, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
| | - Nagalla Balakrishna
- Biostatistics Division, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
| | - Kankipati Vijaya Radhakrishna
- Clinical Division, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
| | - Sudip Ghosh
- Molecular Biology Division, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
| | - Sylvia Fernandez Rao
- Behavioral Science Unit, National Institute of Nutrition (Indian Council of Medical Research), Hyderabad, Telangana, India
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Wang X, Ai T, Meng X, Zhou J, Mao X. In vitro iron absorption of α-lactalbumin hydrolysate-iron and β-lactoglobulin hydrolysate-iron complexes. J Dairy Sci 2014; 97:2559-66. [DOI: 10.3168/jds.2013-7461] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 01/07/2014] [Indexed: 02/01/2023]
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Nair KM, Brahmam GNV, Radhika MS, Dripta RC, Ravinder P, Balakrishna N, Chen Z, Hawthorne KM, Abrams SA. Inclusion of guava enhances non-heme iron bioavailability but not fractional zinc absorption from a rice-based meal in adolescents. J Nutr 2013; 143:852-8. [PMID: 23596161 PMCID: PMC3652882 DOI: 10.3945/jn.112.171702] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Assessing the bioavailability of non-heme iron and zinc is essential for recommending diets that meet the increased growth-related demand for these nutrients. We studied the bioavailability of iron and zinc from a rice-based meal in 16 adolescent boys and girls, 13-15 y of age, from 2 government-run residential schools. Participants were given a standardized rice meal (regular) and the same meal with 100 g of guava fruit (modified) with (57)Fe on 2 consecutive days. A single oral dose of (58)Fe in orange juice was given at a separate time as a reference dose. Zinc absorption was assessed by using (70)Zn, administered intravenously, and (67)Zn given orally with meals. The mean hemoglobin concentration was similar in girls (129 ± 7.8 g/L) and boys (126 ± 7.1 g/L). There were no sex differences in the indicators of iron and zinc status except for a higher hepcidin concentration in boys (P < 0.05). The regular and modified meals were similar in total iron (10-13 mg/meal) and zinc (2.7 mg/meal) content. The molar ratio of iron to phytic acid was >1:1, but the modified diet had 20 times greater ascorbic acid content. The absorption of (57)Fe from the modified meal, compared with regular meal, was significantly (P < 0.05) greater in both girls (23.9 ± 11.2 vs. 9.7 ± 6.5%) and boys (19.2 ± 8.4 vs. 8.6 ± 4.1%). Fractional zinc absorption was similar between the regular and modified meals in both sexes. Hepcidin was found to be a significant predictor of iron absorption (standardized β = -0.63, P = 0.001, R(2) = 0.40) from the reference dose. There was no significant effect of sex on iron and zinc bioavailability from meals. We conclude that simultaneous ingestion of guava fruit with a habitual rice-based meal enhances iron bioavailability in adolescents.
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Affiliation(s)
- Krishnapillai Madhavan Nair
- Divisions of Micronutrient Research, National Institute of Nutrition, Indian Council of Medical Research, Hyderabad, India.
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