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Davies A, Chen J, Peters H, Lamond A, Rangan A, Allman-Farinelli M, Porykali S, Oge R, Nogua H, Porykali B. What Do We Know about the Diets of Pacific Islander Adults in Papua New Guinea? A Scoping Review. Nutrients 2024; 16:1472. [PMID: 38794709 PMCID: PMC11124261 DOI: 10.3390/nu16101472] [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] [Received: 04/25/2024] [Revised: 05/09/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
While a large proportion of the population in Papua New Guinea (PNG) maintain a subsistence lifestyle, exposure to modernisation and industrialisation since European contact has influenced a transition towards Western diets. This review aimed to scope and summarise the published research on dietary intake among Pacific Islander adults in PNG. Four electronic databases and grey literature were searched. Two reviewers completed the screening and data extraction. Fourteen studies were included from the Highlands (n = 7), Southern (n = 5), Momase (n = 1) and both the Highlands/Southern region (n = 1). No studies were from the Islands region. The majority of the studies were published prior to the year 2000 (n = 9). Geographical region and degree of urbanisation had an impact on dietary intake. Urban areas reported higher intakes of energy, protein and fat compared to rural areas. In the Southern region, a variety of foods, including sago, taro, kaukau, cooked banana, coconut and cassava contributed to energy intake, while kaukau was the main energy and protein source in the Highlands. The main foods contributing to protein in the Southern region were fresh fish, land animals and purchased animals. This review highlights an evidence gap regarding dietary intake research. Within the context of international initiatives, there is an urgent call for research aimed at understanding the social and cultural contextualisation of dietary behaviours in PNG.
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Affiliation(s)
- Alyse Davies
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Juliana Chen
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Hannah Peters
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Alex Lamond
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Anna Rangan
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Margaret Allman-Farinelli
- Discipline of Nutrition and Dietetics, Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia; (A.D.)
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Shelina Porykali
- School of Health Sciences and Social Work, Griffith University, Gold Coast, QLD 4222, Australia
| | - Robin Oge
- National Capital District Provincial Health Authority, Port Moresby 121, Papua New Guinea
| | - Hans Nogua
- Port Moresby General Hospital, National Capital District, Port Moresby 121, Papua New Guinea
| | - Bobby Porykali
- Aboriginal and Torres Strait Islander Health Program, George Institute for Global Health, Sydney, NSW 2000, Australia;
- Faculty of Medicine, School of Population Health, University of New South Wales, Sydney, NSW 2052, Australia
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2
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Yoshinaga J, Komatsuda S, Fujita R, Amin MHA, Oguri T. Carbon and nitrogen stable isotope ratios of diet of the Japanese and diet-hair offset values. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2021; 57:563-575. [PMID: 34719303 DOI: 10.1080/10256016.2021.1990276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
The stable isotope ratios of carbon and nitrogen (δ13C and δ15N) were measured in composite samples of Japanese food and hair. Three hundred eighty-nine foodstuffs were collected in Tokyo and Gunma Prefecture, Japan, in 2020. The foodstuffs were classified into 15 food categories, prepared as usually consumed, and mixed to make 15 composite samples representing each of the food categories. Similarly prepared samples for foodstuffs collected in 2011 and 2015 were also examined. Composite hair samples were collected from a barber shop in Tokyo and a beauty salon in Gunma in 2019. The δ13C and δ15N values of the food and hair composites were measured by elemental analyzer/isotope ratio mass spectrometry after defatting. The δ13C and δ15N values of the food composite varied from composite to composite and according to year of collection. The whole-diet δ13C values were -21.1, -22.0, and -21.5 ‰ for the 2011, 2015, and 2020 samples, respectively; the δ15N values were 5.0, 4.4, and 4.4 ‰, respectively. Diet-hair offset values of δ13C and δ15N were calculated to be 1.9 and 4.3 ‰ for δ13C and δ15N, respectively. These offset values will be important for dietary analysis and nutritional research using hair isotope ratios.
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Affiliation(s)
- Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Oura, Japan
| | | | - Raiki Fujita
- Faculty of Life Sciences, Toyo University, Oura, Japan
| | | | - Tomoko Oguri
- Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
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Jonduo ME, Wawae L, Masiria G, Suda W, Hattori M, Takayasu L, Abdad MY, Greenhill AR, Horwood PF, Pomat W, Umezaki M. Gut microbiota composition in obese and non-obese adult relatives from the highlands of Papua New Guinea. FEMS Microbiol Lett 2021; 367:5918384. [PMID: 33021675 DOI: 10.1093/femsle/fnaa161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 10/01/2020] [Indexed: 12/12/2022] Open
Abstract
Obesity is a condition that results from an imbalance between energy intake and expenditure. Recently, obesity has been linked to differences in the composition of gut microbiota. To examine this association in Papua New Guinea (PNG) highlanders, fecal samples were collected from 18 adults; nine obese participants were paired with their non-obese relative. Amplification of the 16S rRNA gene targeting the V1-V2 region was performed on DNA extracts for each participant, with high-quality sequences selected and used for operational taxonomic unit clustering. The data showed Firmicutes and Bacteroidetes were the two dominant phyla, while at genus level Prevotella was the most dominant genus in all of the samples. Nonetheless, statistical evaluation of potential association between nutritional status and bacterial abundance at both phyla and genus levels showed no significant difference. Further studies, ideally in both rural and urban areas, are needed to evaluate the role of the gut microbiome in the occurrence of obesity in PNG and other resource-limited settings.
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Affiliation(s)
- Marinjho E Jonduo
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan.,Papua New Guinea Institute of Medical Research, Eastern Highlands Province 441, Papua New Guinea
| | - Lorry Wawae
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Geraldine Masiria
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Wataru Suda
- Center for Omics and Bioinformatics, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8561, Japan
| | - Masahira Hattori
- Center for Omics and Bioinformatics, Graduate School of Frontier Sciences, The University of Tokyo, Chiba 277-8561, Japan
| | - Lena Takayasu
- Papua New Guinea Institute of Medical Research, Eastern Highlands Province 441, Papua New Guinea
| | - Mohammad Y Abdad
- Infectious Disease Research Laboratory, National Centre for Infectious Diseases, 16Jln Tan Tock Seng, Singapore 308442
| | - Andrew R Greenhill
- School of Science, Psychology and Sport, Federation University Australia, Churchill 3353, Australia
| | - Paul F Horwood
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville 4811, Australia
| | - William Pomat
- Papua New Guinea Institute of Medical Research, Eastern Highlands Province 441, Papua New Guinea
| | - Masahiro Umezaki
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
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A culture-sensitive semi-quantitative FFQ for use among the adult population in Nairobi, Kenya: development, validity and reproducibility. Public Health Nutr 2020; 24:834-844. [PMID: 32705973 DOI: 10.1017/s136898002000169x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To develop a semi-quantitative FFQ and to evaluate its validity and reproducibility for the assessment of total dietary intake of Kenyan urban adult population, given its non-existence in Kenya. DESIGN The current study adopted a cross-sectional design. A culture-sensitive semi-quantitative FFQ was developed and its validity was tested relative to three non-consecutive 24-h recalls (24hR). Reproducibility was tested by the test-retest method, with a 3-week interval. Spearman's correlation coefficients and intra-class correlation coefficients were calculated for several macro- and micronutrients. Cross-classification into quartiles and Bland and Altman plots were analysed. SETTING Nairobi county (Dagoreti South and Starehe constituencies). PARTICIPANTS A convenient sample was recruited in three different clusters in Nairobi. RESULTS A culture-sensitive 123-food-item semi-quantitative FFQ showed higher nutrient intakes compared with the 24hR (total energy median 12543·632 v. 8501·888 kJ, P < 0·001). Energy-adjusted and deattenuated Spearman's correlations for macronutrients ranged between 0·21 (total fat) and 0·47 (protein). The agreement in the same quartile varied from 28 % (protein) to 41 % (carbohydrates). Including adjacent quartiles, the range increased: 76 % (protein and fat) to 81 % (carbohydrates). The extreme disagreement was low. The first FFQ application resulted in higher mean values for all nutrients compared with the second FFQ (total energy median 12459·952 v. 10485·104 kJ, P < 0·001). Energy-adjusted correlations for macronutrients ranged from 0·28 (carbohydrates) to 0·61 (protein). Intra-class correlation coefficients for macronutrients were moderate, between 0·6 and 0·7. CONCLUSIONS The developed semi-quantitative FFQ was shown to be a valid and reproducible tool for ranking urban adult Kenyans according to their dietary intake.
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Horwood PF, Tarantola A, Goarant C, Matsui M, Klement E, Umezaki M, Navarro S, Greenhill AR. Health Challenges of the Pacific Region: Insights From History, Geography, Social Determinants, Genetics, and the Microbiome. Front Immunol 2019; 10:2184. [PMID: 31572391 PMCID: PMC6753857 DOI: 10.3389/fimmu.2019.02184] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/29/2019] [Indexed: 02/06/2023] Open
Abstract
The Pacific region, also referred to as Oceania, is a geographically widespread region populated by people of diverse cultures and ethnicities. Indigenous people in the region (Melanesians, Polynesians, Micronesians, Papuans, and Indigenous Australians) are over-represented on national, regional, and global scales for the burden of infectious and non-communicable diseases. Although social and environmental factors such as poverty, education, and access to health-care are assumed to be major drivers of this disease burden, there is also developing evidence that genetic and microbiotic factors should also be considered. To date, studies investigating genetic and/or microbiotic links with vulnerabilities to infectious and non-communicable diseases have mostly focused on populations in Europe, Asia, and USA, with uncertain associations for other populations such as indigenous communities in Oceania. Recent developments in personalized medicine have shown that identifying ethnicity-linked genetic vulnerabilities can be important for medical management. Although our understanding of the impacts of the gut microbiome on health is still in the early stages, it is likely that equivalent vulnerabilities will also be identified through the interaction between gut microbiome composition and function with pathogens and the host immune system. As rapid economic, dietary, and cultural changes occur throughout Oceania it becomes increasingly important that further research is conducted within indigenous populations to address the double burden of high rates of infectious diseases and rapidly rising non-communicable diseases so that comprehensive development goals can be planned. In this article, we review the current knowledge on the impact of nutrition, genetics, and the gut microbiome on infectious diseases in indigenous people of the Pacific region.
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Affiliation(s)
- Paul F. Horwood
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia
| | | | - Cyrille Goarant
- Institut Pasteur de Nouvelle-Calédonie, Noumea, New Caledonia
| | - Mariko Matsui
- Institut Pasteur de Nouvelle-Calédonie, Noumea, New Caledonia
| | - Elise Klement
- Institut Pasteur de Nouvelle-Calédonie, Noumea, New Caledonia
- Internal Medicine and Infectious Diseases Department, Centre Hospitalier Territorial, Noumea, New Caledonia
| | - Masahiro Umezaki
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Severine Navarro
- Immunology Department, QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Andrew R. Greenhill
- School of Health and Life Sciences, Federation University Australia, Churchill, VIC, Australia
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6
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Horwood PF, Soli KW, Maure T, Naito YI, Morita A, Natsuhara K, Tadokoro K, Baba J, Odani S, Tomitsuka E, Igai K, Larkins JA, Siba PM, Pomat W, McBryde ES, Umezaki M, Greenhill AR. A High Burden of Asymptomatic Gastrointestinal Infections in Traditional Communities in Papua New Guinea. Am J Trop Med Hyg 2017; 97:1872-1875. [PMID: 29016338 PMCID: PMC5805050 DOI: 10.4269/ajtmh.17-0282] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Stool samples were collected from 148 healthy adults living a traditional subsistence lifestyle in Papua New Guinea and screened for enteric pathogens using real-time RT-PCR/PCR assays. Enteric pathogens were detected in a high proportion (41%) of individuals. Clear differences were observed in the detection of pathogens between highland and lowland communities. In particular, there was a marked difference in detection rates of norovirus GII (20% and 0%, respectively) and Shigella sp. (15% and 0%, respectively). Analysis of the relationship between enteric pathogen carriage and microbial community composition of participants, using box plots to compare specific normal flora population numbers, did not suggest that gut microbial composition was directly associated with pathogen carriage. This study suggests that enteric pathogens are common in healthy individuals in Papua New Guinean highland communities, presumably acting as a reservoir of infection and thus contributing to a high burden of gastrointestinal illnesses.
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Affiliation(s)
- Paul F Horwood
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea.,Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Kevin W Soli
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Tobias Maure
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Yuichi I Naito
- Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
| | - Ayako Morita
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Kazumi Natsuhara
- Faculty of Nursing, The Japanese Red Cross Akita College of Nursing, Akita, Japan
| | - Kiyoshi Tadokoro
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Jun Baba
- Research Institute for Languages and Cultures of Asia and Africa, Tokyo, Japan
| | - Shingo Odani
- Faculty of Letter, Chiba University, Chiba, Japan
| | - Eriko Tomitsuka
- Department of Health Chemistry, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Sciences, Niigata City, Japan.,Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Katsura Igai
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.,Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Jo-Ann Larkins
- School of Applied and Biomedical Sciences, Federation University Australia, Victoria, Australia
| | - Peter M Siba
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - William Pomat
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Emma S McBryde
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, Australia
| | - Masahiro Umezaki
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Andrew R Greenhill
- School of Applied and Biomedical Sciences, Federation University Australia, Victoria, Australia.,Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
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7
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Athanasiadou E, Kyrkou C, Fotiou M, Tsakoumaki F, Dimitropoulou A, Polychroniadou E, Menexes G, Athanasiadis AP, Biliaderis CG, Michaelidou AM. Development and Validation of a Mediterranean Oriented Culture-Specific Semi-Quantitative Food Frequency Questionnaire. Nutrients 2016; 8:E522. [PMID: 27571097 PMCID: PMC5037509 DOI: 10.3390/nu8090522] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/14/2016] [Accepted: 08/15/2016] [Indexed: 12/18/2022] Open
Abstract
The objectives were to develop a Mediterranean oriented semi-quantitative food frequency questionnaire (FFQ) and evaluate its validity in measuring energy and nutrient intakes. For FFQ development, the main challenge was to merge food items and practices reflecting cultural Mediterranean preferences with other food choices ensuing from diet transition to more westernized dietary patterns. FFQ validity was evaluated by comparing nutrient intakes against the average of two 24-h dietary recalls for 179 pregnant women. Although the mean intake values for most nutrients and energy tended to be higher when determined by the FFQ, the Cohen's d was below 0.3. Bland-Altman plots confirmed the agreement between the two methods. Positive significant correlations ranged from 0.35 to 0.77. The proportion of women classified correctly was between 73.2% and 92.2%, whereas gross misclassification was low. Weighted kappa values were between 0.31 and 0.78, while intraclass correlation coefficients were between 0.49 and 0.89. Our methodological approach for the development and validation of this FFQ provides reliable measurements of energy, macro- and micronutrient intakes. Overall, our culture-specific FFQ could serve as a useful assessment tool in studies aiming at monitoring dietary intakes, especially in the Mediterranean region, where countries share common cultural dietary habits.
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Affiliation(s)
- Elpiniki Athanasiadou
- 1st Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Charikleia Kyrkou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Maria Fotiou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Foteini Tsakoumaki
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Aristea Dimitropoulou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Eleni Polychroniadou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Georgios Menexes
- Department of Field Crops and Ecology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Apostolos P Athanasiadis
- 1st Department of Obstetrics and Gynecology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Costas G Biliaderis
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
| | - Alexandra-Maria Michaelidou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece.
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8
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Igai K, Itakura M, Nishijima S, Tsurumaru H, Suda W, Tsutaya T, Tomitsuka E, Tadokoro K, Baba J, Odani S, Natsuhara K, Morita A, Yoneda M, Greenhill AR, Horwood PF, Inoue JI, Ohkuma M, Hongoh Y, Yamamoto T, Siba PM, Hattori M, Minamisawa K, Umezaki M. Nitrogen fixation and nifH diversity in human gut microbiota. Sci Rep 2016; 6:31942. [PMID: 27554344 PMCID: PMC4995403 DOI: 10.1038/srep31942] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 07/27/2016] [Indexed: 12/04/2022] Open
Abstract
It has been hypothesized that nitrogen fixation occurs in the human gut. However, whether the gut microbiota truly has this potential remains unclear. We investigated the nitrogen-fixing activity and diversity of the nitrogenase reductase (NifH) genes in the faecal microbiota of humans, focusing on Papua New Guinean and Japanese individuals with low to high habitual nitrogen intake. A 15N2 incorporation assay showed significant enrichment of 15N in all faecal samples, irrespective of the host nitrogen intake, which was also supported by an acetylene reduction assay. The fixed nitrogen corresponded to 0.01% of the standard nitrogen requirement for humans, although our data implied that the contribution in the gut in vivo might be higher than this value. The nifH genes recovered in cloning and metagenomic analyses were classified in two clusters: one comprising sequences almost identical to Klebsiella sequences and the other related to sequences of Clostridiales members. These results are consistent with an analysis of databases of faecal metagenomes from other human populations. Collectively, the human gut microbiota has a potential for nitrogen fixation, which may be attributable to Klebsiella and Clostridiales strains, although no evidence was found that the nitrogen-fixing activity substantially contributes to the host nitrogen balance.
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Affiliation(s)
- Katsura Igai
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.,Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Manabu Itakura
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Miyagi, Japan
| | - Suguru Nishijima
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Hirohito Tsurumaru
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Miyagi, Japan
| | - Wataru Suda
- Center for Omics and Bioinformatics, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Takumi Tsutaya
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Eriko Tomitsuka
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Tadokoro
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Jun Baba
- Department of Sociological Studies, Faculty of Human Sciences, Wako University, Tokyo, Japan
| | - Shingo Odani
- Faculty of Letters, Chiba University, Chiba, Japan
| | | | - Ayako Morita
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minoru Yoneda
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Andrew R Greenhill
- Papua New Guinea Institute of Medical Research, Eastern Highlands Province, Papua New Guinea.,School of Applied and Biomedical Sciences, Federation University Australia, Victoria, Australia
| | - Paul F Horwood
- Papua New Guinea Institute of Medical Research, Eastern Highlands Province, Papua New Guinea
| | - Jun-Ichi Inoue
- Japan Collection of Microorganisms, RIKEN BioResource Center, Ibaraki, Japan
| | - Moriya Ohkuma
- Japan Collection of Microorganisms, RIKEN BioResource Center, Ibaraki, Japan
| | - Yuichi Hongoh
- Department of Life Science and Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Taro Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.,Department of International Health, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - Peter M Siba
- Papua New Guinea Institute of Medical Research, Eastern Highlands Province, Papua New Guinea
| | - Masahira Hattori
- Center for Omics and Bioinformatics, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Kiwamu Minamisawa
- Department of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Miyagi, Japan
| | - Masahiro Umezaki
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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9
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Umezaki M, Naito YI, Tsutaya T, Baba J, Tadokoro K, Odani S, Morita A, Natsuhara K, Phuanukoonnon S, Vengiau G, Siba PM, Yoneda M. Association between sex inequality in animal protein intake and economic development in the Papua New Guinea highlands: The carbon and nitrogen isotopic composition of scalp hair and fingernail. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 159:164-73. [DOI: 10.1002/ajpa.22844] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 08/09/2015] [Accepted: 08/11/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Masahiro Umezaki
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; Hongo Tokyo 113-0033 Japan
| | - Yuichi I. Naito
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Japan
| | - Takumi Tsutaya
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Japan
| | - Jun Baba
- Faculty of Urban Liberal Arts; Tokyo Metropolitan University; Tokyo Japan
| | - Kiyoshi Tadokoro
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; Hongo Tokyo 113-0033 Japan
- Faculty of International Resource Sciences; Akita University; Akita Japan
| | - Shingo Odani
- Faculty of Letters; Chiba University; Chiba Japan
| | - Ayako Morita
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; Hongo Tokyo 113-0033 Japan
- Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
| | - Kazumi Natsuhara
- Faculty of Nursing; The Japanese Red Cross Akita College of Nursing; Akita Japan
| | | | - Gwendalyn Vengiau
- Papua New Guinea Institute of Medical Research; Goroka Papua New Guinea
| | - Peter M. Siba
- Papua New Guinea Institute of Medical Research; Goroka Papua New Guinea
| | - Minoru Yoneda
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Japan
- The University Museum, The University of Tokyo; Japan
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Naito YI, Morita A, Natsuhara K, Tadokoro K, Baba J, Odani S, Tomitsuka E, Igai K, Tsutaya T, Yoneda M, Greenhill AR, Horwood PF, Soli KW, Phuanukoonnon S, Siba PM, Umezaki M. Association of protein intakes and variation of diet-scalp hair nitrogen isotopic discrimination factor in Papua New Guinea highlanders. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 158:359-70. [DOI: 10.1002/ajpa.22798] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 06/09/2015] [Accepted: 06/09/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Yuichi I. Naito
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Kashiwanoha 5-1-5 Kashiwa Chiba 277-8562 Japan
| | - Ayako Morita
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan
- Tokyo Medical and Dental University; Yushima 1-5-45 Bunkyo-ku Tokyo 113-8519 Japan
| | - Kazumi Natsuhara
- The Japanese Red Cross Akita College of Nursing; Nawashirosawa 17-3, Saruta, Kamikitate Akita Akita 010-1493 Japan
| | - Kiyoshi Tadokoro
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan
| | - Jun Baba
- The Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies; 3-11-1 Asahi-cho Fuchu Tokyo 183-8534 Japan
| | - Shingo Odani
- Faculty of Letters, Chiba University; 1-33 Yayoicho, Inage Chiba 263-8522 Japan
| | - Eriko Tomitsuka
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan
| | - Katsura Igai
- Graduate School of Biomedical Science, Nagasaki University; 1-12-4 Sakamoto Nagasaki 852-8523 Japan
| | - Takumi Tsutaya
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Kashiwanoha 5-1-5 Kashiwa Chiba 277-8562 Japan
| | - Minoru Yoneda
- Department of Integrated Biosciences; Graduate School of Frontier Sciences, The University of Tokyo; Kashiwanoha 5-1-5 Kashiwa Chiba 277-8562 Japan
- The University Museum, The University of Tokyo; Hongo 7-3-1 Bunkyo Tokyo 113-0033 Japan
| | - Andrew R. Greenhill
- Papua New Guinea Institute of Medical Research, PO Box 60, Goroka, Eastern Highlands Province 441; Papua New Guinea
- Federation University; Gippsland Campus Northways Road, Churchill Victoria 3842 Australia
| | - Paul F. Horwood
- Papua New Guinea Institute of Medical Research, PO Box 60, Goroka, Eastern Highlands Province 441; Papua New Guinea
| | - Kevin W. Soli
- Papua New Guinea Institute of Medical Research, PO Box 60, Goroka, Eastern Highlands Province 441; Papua New Guinea
| | - Suparat Phuanukoonnon
- Papua New Guinea Institute of Medical Research, PO Box 60, Goroka, Eastern Highlands Province 441; Papua New Guinea
| | - Peter M. Siba
- Papua New Guinea Institute of Medical Research, PO Box 60, Goroka, Eastern Highlands Province 441; Papua New Guinea
| | - Masahiro Umezaki
- Department of Human Ecology; Graduate School of Medicine, The University of Tokyo; 7-3-1 Hongo Bunkyo Tokyo 113-0033 Japan
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Greenhill AR, Tsuji H, Ogata K, Natsuhara K, Morita A, Soli K, Larkins JA, Tadokoro K, Odani S, Baba J, Naito Y, Tomitsuka E, Nomoto K, Siba PM, Horwood PF, Umezaki M. Characterization of the gut microbiota of Papua New Guineans using reverse transcription quantitative PCR. PLoS One 2015; 10:e0117427. [PMID: 25658868 PMCID: PMC4319852 DOI: 10.1371/journal.pone.0117427] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 12/23/2014] [Indexed: 12/17/2022] Open
Abstract
There has been considerable interest in composition of gut microbiota in recent years, leading to a better understanding of the role the gut microbiota plays in health and disease. Most studies have been limited in their geographical and socioeconomic diversity to high-income settings, and have been conducted using small sample sizes. To date, few analyses have been conducted in low-income settings, where a better understanding of the gut microbiome could lead to the greatest return in terms of health benefits. Here, we have used quantitative real-time polymerase chain reaction targeting dominant and sub-dominant groups of microorganisms associated with human gut microbiome in 115 people living a subsistence lifestyle in rural areas of Papua New Guinea. Quantification of Clostridium coccoides group, C. leptum subgroup, C. perfringens, Bacteroides fragilis group, Bifidobacterium, Atopobium cluster, Prevotella, Enterobacteriaceae, Enterococcus, Staphylococcus, and Lactobacillus spp. was conducted. Principle coordinates analysis (PCoA) revealed two dimensions with Prevotella, clostridia, Atopobium, Enterobacteriaceae, Enterococcus and Staphylococcus grouping in one dimension, while B. fragilis, Bifidobacterium and Lactobacillus grouping in the second dimension. Highland people had higher numbers of most groups of bacteria detected, and this is likely a key factor for the differences revealed by PCoA between highland and lowland study participants. Age and sex were not major determinants in microbial population composition. The study demonstrates a gut microbial composition with some similarities to those observed in other low-income settings where traditional diets are consumed, which have previously been suggested to favor energy extraction from a carbohydrate rich diet.
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Affiliation(s)
- Andrew R. Greenhill
- School of Applied and Biomedical Sciences, Federation University, Churchill, Australia
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
- * E-mail:
| | | | | | - Kazumi Natsuhara
- Faculty of Nursing, The Japanese Red Cross Akita College of Nursing, Akita, Japan
| | - Ayako Morita
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Kevin Soli
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Jo-Ann Larkins
- School of Applied and Biomedical Sciences, Federation University, Churchill, Australia
| | - Kiyoshi Tadokoro
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | - Shingo Odani
- Faculty of Letter, Chiba University, Chiba, Japan
| | - Jun Baba
- Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, Tokyo, Japan
| | | | - Eriko Tomitsuka
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
| | | | - Peter M. Siba
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Paul F. Horwood
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Masahiro Umezaki
- Department of Human Ecology, The University of Tokyo, Tokyo, Japan
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