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Hsieh YYP, Sun W, Young JM, Cheung R, Hogan DA, Dandekar AA, Malik HS. Widespread fungal-bacterial competition for magnesium lowers bacterial susceptibility to polymyxin antibiotics. PLoS Biol 2024; 22:e3002694. [PMID: 38900845 PMCID: PMC11218974 DOI: 10.1371/journal.pbio.3002694] [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: 04/02/2024] [Revised: 07/02/2024] [Accepted: 05/29/2024] [Indexed: 06/22/2024] Open
Abstract
Fungi and bacteria coexist in many polymicrobial communities, yet the molecular basis of their interactions remains poorly understood. Here, we show that the fungus Candida albicans sequesters essential magnesium ions from the bacterium Pseudomonas aeruginosa. To counteract fungal Mg2+ sequestration, P. aeruginosa expresses the Mg2+ transporter MgtA when Mg2+ levels are low. Thus, loss of MgtA specifically impairs P. aeruginosa in co-culture with C. albicans, but fitness can be restored by supplementing Mg2+. Using a panel of fungi and bacteria, we show that Mg2+ sequestration is a general mechanism of fungal antagonism against gram-negative bacteria. Mg2+ limitation enhances bacterial resistance to polymyxin antibiotics like colistin, which target gram-negative bacterial membranes. Indeed, experimental evolution reveals that P. aeruginosa evolves C. albicans-dependent colistin resistance via non-canonical means; antifungal treatment renders resistant bacteria colistin-sensitive. Our work suggests that fungal-bacterial competition could profoundly impact polymicrobial infection treatment with antibiotics of last resort.
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Affiliation(s)
- Yu-Ying Phoebe Hsieh
- Division of Basic Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Wanting Sun
- Division of Basic Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Janet M. Young
- Division of Basic Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
| | - Robin Cheung
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
| | - Deborah A. Hogan
- Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, United States of America
| | - Ajai A. Dandekar
- Department of Microbiology, University of Washington, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Harmit S. Malik
- Division of Basic Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
- Howard Hughes Medical Institute, Fred Hutchinson Cancer Center, Seattle, Washington, United States of America
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2
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Escobedo-Monge MF, Barrado E, Parodi-Román J, Escobedo-Monge MA, Marcos-Temprano M, Marugán-Miguelsanz JM. Magnesium Status and Calcium/Magnesium Ratios in a Series of Cystic Fibrosis Patients. Nutrients 2022; 14:1793. [PMID: 35565764 PMCID: PMC9104329 DOI: 10.3390/nu14091793] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 02/04/2023] Open
Abstract
Magnesium (Mg) is an essential micronutrient that participates in various enzymatic reactions that regulate vital biological functions. The main aim was to assess the Mg status and its association with nutritional indicators in seventeen cystic fibrosis (CF) patients. The serum Mg and calcium (Ca) levels were determined using standardized methods and the dietary Mg intake by prospective 72 h dietary surveys. The mean serum Ca (2.45 mmol/L) and Mg (0.82 mmol/L) had normal levels, and the mean dietary intake of the Ca (127% DRI: Dietary Reference Intake) and Mg (125% DRI) were high. No patients had an abnormal serum Ca. A total of 47% of the subjects had hypomagnesemia and 12% insufficient Mg consumption. One patient had a serum Mg deficiency and inadequate Mg intake. A total of 47 and 82% of our series had a high serum Ca/Mg ratio of >4.70 (mean 4.89) and a low Ca/Mg intake ratio of <1.70 (mean 1.10), respectively. The likelihood of a high Ca/Mg ratio was 49 times higher in patients with a serum Mg deficiency than in normal serum Mg patients. Both Ca/Mg ratios were associated with the risk of developing cardiovascular disease (CVD), type 2 diabetes (T2D), metabolic syndrome (MetS), and even several cancers. Therefore, 53% of the CF patients were at high risk of a Mg deficiency and developing other chronic diseases.
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Affiliation(s)
- Marlene Fabiola Escobedo-Monge
- Department of Pediatrics of the Faculty of Medicine, Valladolid University, Avenida Ramón y Cajal, 7, 47005 Valladolid, Spain;
| | - Enrique Barrado
- Department of Analytical Chemistry, Science Faculty, Campus Miguel Delibes, University of Valladolid, Calle Paseo de Belén, 7, 47011 Valladolid, Spain;
| | | | | | - Marianela Marcos-Temprano
- Pediatric Service, University Clinical Hospital of Valladolid, Avenida Ramón y Cajal, 3, 47005 Valladolid, Spain;
| | - José Manuel Marugán-Miguelsanz
- Department of Pediatrics of the Faculty of Medicine, Valladolid University, Avenida Ramón y Cajal, 7, 47005 Valladolid, Spain;
- Section of Gastroenterology and Pediatric Nutrition, University Clinical Hospital of Valladolid, Avenida Ramón y Cajal, 3, 47003 Valladolid, Spain
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3
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Xu J, Hu P, Zhang X, Chen J, Wang J, Zhang J, Chen Z, Yu MK, Chung YW, Wang Y, Zhang X, Zhang Y, Zheng N, Yao H, Yue J, Chan HC, Qin L, Ruan YC. Magnesium implantation or supplementation ameliorates bone disorder in CFTR-mutant mice through an ATF4-dependent Wnt/β-catenin signaling. Bioact Mater 2021; 8:95-108. [PMID: 34541389 PMCID: PMC8424424 DOI: 10.1016/j.bioactmat.2021.06.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 02/07/2023] Open
Abstract
Magnesium metal and its alloys are being developed as effective orthopedic implants; however, the mechanisms underlying the actions of magnesium on bones remain unclear. Cystic fibrosis, the most common genetic disease in Caucasians caused by the mutation of CFTR, has shown bone disorder as a key clinical manifestation, which currently lacks effective therapeutic options. Here we report that implantation of magnesium-containing implant stimulates bone formation and improves bone fracture healing in CFTR-mutant mice. Wnt/β-catenin signaling in the bone is enhanced by the magnesium implant, and inhibition of Wnt/β-catenin by iCRT14 blocks the magnesium implant to improve fracture healing in CFTR-mutant mice. We further demonstrate that magnesium ion enters osteocytes, increases intracellular cAMP level and activates ATF4, a key transcription factor known to regulate Wnt/β-catenin signaling. In vivo knockdown of ATF4 abolishes the magnesium implant-activated β-catenin in bones and reverses the improved-fracture healing in CFTR-mutant mice. In addition, oral supplementation of magnesium activates ATF4 and β-catenin as well as enhances bone volume and density in CFTR-mutant mice. Together, these results show that magnesium implantation or supplementation may serve as a potential anabolic therapy for cystic fibrosis-related bone disease. Activation of ATF4-dependent Wnt/β-catenin signaling in osteocytes is identified as a previously undefined mechanism underlying the beneficial effect of magnesium on bone formation. Magnesium implant ameliorates bone defects and improves the impaired bone fracture healing in CFTR-deficient mice. Oral magnesium supplementation improves bone quality in CFTR-deficient mice. Extracellular Mg2+ enters bone cells through Mg2+ channels and transporters. Mg2+ elevates cAMP level to activate ATF4-dependent Wnt/β-catenin signalingin bone cells.
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Affiliation(s)
- Jiankun Xu
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Peijie Hu
- Deparment of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Xiaotian Zhang
- Deparment of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Junjiang Chen
- Deparment of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China.,Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jiali Wang
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
| | - Jieting Zhang
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ziyi Chen
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Mei Kuen Yu
- Deparment of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China.,Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yiu Wa Chung
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yan Wang
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaohu Zhang
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yifeng Zhang
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Nianye Zheng
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Hao Yao
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Jiang Yue
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Hsiao Chang Chan
- Epithelial Cell Biology Research Centre, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China
| | - Ye Chun Ruan
- Deparment of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China
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Vanoni FO, Milani GP, Agostoni C, Treglia G, Faré PB, Camozzi P, Lava SAG, Bianchetti MG, Janett S. Magnesium Metabolism in Chronic Alcohol-Use Disorder: Meta-Analysis and Systematic Review. Nutrients 2021; 13:nu13061959. [PMID: 34200366 PMCID: PMC8229336 DOI: 10.3390/nu13061959] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/30/2021] [Accepted: 06/03/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic alcohol-use disorder has been imputed as a possible cause of dietary magnesium depletion. The purpose of this study was to assess the prevalence of hypomagnesemia in chronic alcohol-use disorder, and to provide information on intracellular magnesium and on its renal handling. We carried out a structured literature search up to November 2020, which returned 2719 potentially relevant records. After excluding non-significant records, 25 were retained for the final analysis. The meta-analysis disclosed that both total and ionized circulating magnesium are markedly reduced in chronic alcohol-use disorder. The funnel plot and the Egger’s test did not disclose significant publication bias. The I2-test demonstrated significant statistical heterogeneity between studies. We also found that the skeletal muscle magnesium content is reduced and the kidney’s normal response to hypomagnesemia is blunted. In conclusion, magnesium depletion is common in chronic alcohol-use disorder. Furthermore, the kidney plays a crucial role in the development of magnesium depletion.
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Affiliation(s)
- Flora O. Vanoni
- Family Medicine Institute, Faculty of Biomedical Science, Università della Svizzera Italiana, 6900 Lugano, Switzerland; (F.O.V.); (M.G.B.)
| | - Gregorio P. Milani
- Pediatric Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, 6500 Bellinzona, Switzerland
- Correspondence: ; Tel.: +39-(0)2550-38727; Fax: +39-(0)2550-32918
| | - Carlo Agostoni
- Pediatric Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy;
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Giorgio Treglia
- Academic Education, Research and Innovation Area, General Directorate, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland;
- Faculty of Biomedical Science, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Pietro B. Faré
- Department of Internal Medicine, Ente Ospedaliero Cantonale, 6600 Locarno, Switzerland;
| | - Pietro Camozzi
- Department of Internal Medicine, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland; (P.C.); (S.J.)
| | - Sebastiano A. G. Lava
- Pediatric Cardiology Unit, Department of Pediatrics, Centre Hospitalier Universitaire Vaudois, University of Lausanne, 1011 Lausanne, Switzerland;
| | - Mario G. Bianchetti
- Family Medicine Institute, Faculty of Biomedical Science, Università della Svizzera Italiana, 6900 Lugano, Switzerland; (F.O.V.); (M.G.B.)
| | - Simone Janett
- Department of Internal Medicine, Ente Ospedaliero Cantonale, 6500 Bellinzona, Switzerland; (P.C.); (S.J.)
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Mathew AA, Panonnummal R. 'Magnesium'-the master cation-as a drug-possibilities and evidences. Biometals 2021; 34:955-986. [PMID: 34213669 PMCID: PMC8249833 DOI: 10.1007/s10534-021-00328-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 06/19/2021] [Indexed: 02/06/2023]
Abstract
Magnesium (Mg2+) is the 2nd most abundant intracellular cation, which participates in various enzymatic reactions; there by regulating vital biological functions. Magnesium (Mg2+) can regulate several cations, including sodium, potassium, and calcium; it consequently maintains physiological functions like impulse conduction, blood pressure, heart rhythm, and muscle contraction. But, it doesn't get much attention in account with its functions, making it a "Forgotten cation". Like other cations, maintenance of the normal physiological level of Mg2+ is important. Its deficiency is associated with various diseases, which point out to the importance of Mg2+ as a drug. The roles of Mg2+ such as natural calcium antagonist, glutamate NMDA receptor blocker, vasodilator, antioxidant and anti-inflammatory agent are responsible for its therapeutic benefits. Various salts of Mg2+ are currently in clinical use, but their application is limited. This review collates all the possible mechanisms behind the behavior of magnesium as a drug at different disease conditions with clinical shreds of evidence.
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Affiliation(s)
- Aparna Ann Mathew
- Amrita School of Pharmacy, Amrita Institute of Medical Science & Research Centre, Amrita VishwaVidyapeetham, Kochi, 682041, India
| | - Rajitha Panonnummal
- Amrita School of Pharmacy, Amrita Institute of Medical Science & Research Centre, Amrita VishwaVidyapeetham, Kochi, 682041, India.
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6
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Natochin YV, Kuznetsova AA, Prokopenko AV, Milani GP, Lava SAG, Marina AS. Osmoregulation in children with cystic fibrosis. Eur J Pediatr 2020; 179:835-838. [PMID: 31897839 DOI: 10.1007/s00431-019-03550-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/05/2019] [Accepted: 12/10/2019] [Indexed: 11/28/2022]
Abstract
Hyponatremia is not rare in cystic fibrosis and might be due to several mechanisms. An endocrine and renal imbalance in water and salt homeostasis was suggested. To address this hypothesis, we assessed the urinary concentrating and diluting ability in 12 cystic fibrosis patients (6 females, 6 males) and in two control groups: 14 children with pneumonia (9 females, 5 males) and in 13 healthy children (9 females, 4 males). Renal concentrating ability was evaluated following overnight water deprivation. Urine osmolality was not significantly different between groups. Renal diluting ability was assessed by means of a water-load test. This provoked a decrease in urine osmolality, as well as an increase in diuresis and solute-free water excretion. These changes were comparable among groups.Conclusion: Children with cystic fibrosis show a preserved renal concentrating and diluting capacity. A generalized endocrine and renal imbalance in water and salt homeostasis therefore appears unlikely.What is Known:•Hyponatremia sometimes occurs in cystic fibrosis.What is New:•Osmoregulation is normal in cystic fibrosis.
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Affiliation(s)
- Yury V Natochin
- I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Laboratory of Renal Physiology and Water Salt Balance, Russian Academy of Sciences, Pr. Torez 44, Saint Petersburg, Russia, 194223.
| | - Alla A Kuznetsova
- I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Laboratory of Renal Physiology and Water Salt Balance, Russian Academy of Sciences, Pr. Torez 44, Saint Petersburg, Russia, 194223.,Department of Faculty Paediatrics, St. Petersburg State Pediatric Medical University, Litovskaya av. 2, Saint Petersburg, Russia, 194100
| | - Anastasia V Prokopenko
- I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Laboratory of Renal Physiology and Water Salt Balance, Russian Academy of Sciences, Pr. Torez 44, Saint Petersburg, Russia, 194223.,Department of Faculty Paediatrics, St. Petersburg State Pediatric Medical University, Litovskaya av. 2, Saint Petersburg, Russia, 194100
| | - Gregorio P Milani
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.,Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Sebastiano A G Lava
- Department of Pediatrics, Pediatric Cardiology Unit, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Anna S Marina
- I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry, Laboratory of Renal Physiology and Water Salt Balance, Russian Academy of Sciences, Pr. Torez 44, Saint Petersburg, Russia, 194223
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Chakravarty S, Massé E. RNA-Dependent Regulation of Virulence in Pathogenic Bacteria. Front Cell Infect Microbiol 2019; 9:337. [PMID: 31649894 PMCID: PMC6794450 DOI: 10.3389/fcimb.2019.00337] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/18/2019] [Indexed: 12/19/2022] Open
Abstract
During infection, bacterial pathogens successfully sense, respond and adapt to a myriad of harsh environments presented by the mammalian host. This exquisite level of adaptation requires a robust modulation of their physiological and metabolic features. Additionally, virulence determinants, which include host invasion, colonization and survival despite the host's immune responses and antimicrobial therapy, must be optimally orchestrated by the pathogen at all times during infection. This can only be achieved by tight coordination of gene expression. A large body of evidence implicate the prolific roles played by bacterial regulatory RNAs in mediating gene expression both at the transcriptional and post-transcriptional levels. This review describes mechanistic and regulatory aspects of bacterial regulatory RNAs and highlights how these molecules increase virulence efficiency in human pathogens. As illustrative examples, Staphylococcus aureus, Listeria monocytogenes, the uropathogenic strain of Escherichia coli, Helicobacter pylori, and Pseudomonas aeruginosa have been selected.
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Affiliation(s)
- Shubham Chakravarty
- RNA Group, Department of Biochemistry, Faculty of Medicine and Health Sciences, CRCHUS, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Eric Massé
- RNA Group, Department of Biochemistry, Faculty of Medicine and Health Sciences, CRCHUS, University of Sherbrooke, Sherbrooke, QC, Canada
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Rozga M, Handu D. Nutrition Care for Patients with Cystic Fibrosis: An Evidence Analysis Center Scoping Review. J Acad Nutr Diet 2019; 119:137-151.e1. [DOI: 10.1016/j.jand.2018.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 03/15/2018] [Indexed: 01/13/2023]
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