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Souid A, Bellani L, Tassi EL, Ben Hamed K, Longo V, Giorgetti L. Early Physiological, Cytological and Antioxidative Responses of the Edible Halophyte Chenopodium quinoa Exposed to Salt Stress. Antioxidants (Basel) 2023; 12:antiox12051060. [PMID: 37237926 DOI: 10.3390/antiox12051060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Quinoa (Chenopodium quinoa Willd.) is a plant of South American origin recently valorized for its nutritional and nutraceutical properties in human diet. Quinoa is cultivated in many parts of the world, with a selection of varieties with good adaptability to extreme climatic conditions and salt stress. The variety Red Faro, native to southern Chile but harvested in Tunisia, was considered for salt stress resistance, considering its seed germination and 10-day seedling growth at increasing doses of NaCl (0, 100, 200 and 300 mM). Seedlings were spectrophotometrically analyzed for antioxidant secondary metabolites (polyphenols, flavonoids, flavonols and anthocyanins), antioxidant capacity (ORAC, oxygen radical absorbance capacity, DPPH*, 2,2-diphenyl-1-pic-rylhydrazyl), antioxidant enzyme activity (superoxide dismutase (SOD), guaiacol peroxidase (GPX), ascorbate peroxidase (APX) and catalase (CAT)) and mineral nutrient content in root and shoot tissues. Cytogenetic analysis of root tip was performed to check for meristematic activity and the possible presence of chromosomal abnormalities induced by salt stress. The results indicated a general increase in antioxidant molecules and antioxidant enzymes NaCl dose-dependent, no effects on seed germination but negative effects on seedling growth, and little effect on root meristems mitotic activity. These results indicated that stress conditions can induce an increase in biologically active molecules that could be used for nutraceutical purposes.
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Affiliation(s)
- Aymen Souid
- Institute of Biology and Agricultural Biotechnology (IBBA), National Research Council, Pisa Unit, 56124 Pisa, Italy
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Lorenza Bellani
- Institute of Biology and Agricultural Biotechnology (IBBA), National Research Council, Pisa Unit, 56124 Pisa, Italy
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Eliana Lanfranca Tassi
- Research Institute on Terrestrial Ecosystems (IRET), National Research Council, 56124 Pisa, Italy
| | - Karim Ben Hamed
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Vincenzo Longo
- Institute of Biology and Agricultural Biotechnology (IBBA), National Research Council, Pisa Unit, 56124 Pisa, Italy
| | - Lucia Giorgetti
- Institute of Biology and Agricultural Biotechnology (IBBA), National Research Council, Pisa Unit, 56124 Pisa, Italy
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Grande T, Souid A, Ciardi M, Della Croce CM, Frassinetti S, Bramanti E, Longo V, Pozzo L. Evaluation of antioxidant and antimicrobial activities of whole flours obtained from different species of Triticum genus. Eur Food Res Technol 2023. [DOI: 10.1007/s00217-023-04238-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
AbstractWhole wheat is an exceptional source of phenolic compounds representing a promising phytochemical class to prevent diet-related chronic diseases thanks to its antioxidant activities. The present work reports the phenolic profile, the antioxidant capacity, the antimicrobial activity and the effect on Lactobacillus brevis growth of eight whole flours obtained from four ancient and modern wheat genotypes of Italian Triticum genus. Total phenolic content (TPC) and total flavonoid content (TFC) were quantified, and antioxidant activities were assessed using oxygen radical absorbance capacity (ORAC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) in vitro tests. HPLC-DAD/FLD was used to detect the presence of phenolic compounds. Moreover, antimicrobial activity of whole flour extracts against some potentially pathogenic Gram negative and Gram positive bacteria and the effect of extracts on Lactobacillus brevis growth were assessed. Results showed quantitative differences (p < 0.05) in antioxidant activities, total phenolic content and concentrations of five phenolic acids (resorcinol, tyrosol, caffeic acid, syringic acid and ferulic acid) among the wheat genotypes. Pathogenic bacteria were significantly negatively affected by wheat extracts while the growth of L. brevis was stimulated. The principal component analysis (PCA) confirmed that the phenolic profile and the antioxidant activities were influenced by the genotypic characteristics of studied varieties, suggesting that the ancient Saragolla stand out for the most interesting phenolic profile. Overall, this research emphasizes how ancient and modern Italian Triticum spp. grains must be investigated to select the grains richer in bioactive compounds.
Graphical abstract
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Miri R, Mleyhi S, Ben Mrad M, Derbel B, Souid A, Boukriba S, Ziadi J, Denguir R. Endovascular repair of ruptured Type B aortic dissection. J Med Vasc 2021; 46:186-189. [PMID: 34238514 DOI: 10.1016/j.jdmv.2021.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/15/2021] [Indexed: 10/21/2022]
Affiliation(s)
- R Miri
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia.
| | - S Mleyhi
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia
| | - M Ben Mrad
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia
| | - B Derbel
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia
| | - A Souid
- Radiology department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Tunisia
| | - S Boukriba
- Radiology department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Tunisia
| | - J Ziadi
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia
| | - R Denguir
- Cardiovascular surgery department, La Rabta Teaching Hospital, Faculty of medicine of Tunis, University of Tunis El Manar, Jabbari Street, 1007 Tunis, Tunisia
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Amari T, Souid A, Ghabriche R, Porrini M, Lutts S, Sacchi GA, Abdelly C, Ghnaya T. Why Does the Halophyte Mesembryanthemum crystallinum Better Tolerate Ni Toxicity than Brassica juncea: Implication of Antioxidant Defense Systems. Plants (Basel) 2020; 9:E312. [PMID: 32131526 PMCID: PMC7154810 DOI: 10.3390/plants9030312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/11/2020] [Accepted: 02/19/2020] [Indexed: 05/06/2023]
Abstract
The implication of enzymatic and non-enzymatic antioxidative systems in response to Ni was evaluated in the halophyte Mesembryanthemum crystallinum in comparison with the metal tolerant glycophyte species Brassica juncea. Seedlings of both species were hydroponically subjected during 21 days to 0, 25, 50, and 100 µM NiCl2. Growth parameters showed that the halophyte M. crystallinum was more tolerant to Ni than B. juncea. Malondialdehyde (MDA) content increased to a higher extent in B. juncea than in M. crystallinum. Antioxidant enzymesactivities were differently affected by Ni in both species. Nickel increased shoot superoxide dismutase (SOD) and ascorbate peroxidase (APX) activities in B. juncea, whereas these activities were reduced in M. crystallinum when exposed to metal stress. The root SOD, APX and guaiacol peroxidase (GPX) activities increased upon Ni treatments for both species. The content of non-enzymatic antioxidative molecules such as glutathione, non-protein thiols and proline increased in Ni-treated plants, except for GSH content in the shoot of B. juncea. Based on the oxidative balance, our findings confirm the higher tolerance of the halophyte M. crystallinum to Ni-induced oxidative stress comparatively to B. juncea. We suggest that M. crystallinum is able to overcome the produced ROS using the non-enzymatic system, while Ni-induced oxidative stress was more acute in B. juncea, leading this species to mainly use the enzymatic system to protect against reactive oxygen species.
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Affiliation(s)
- Taoufik Amari
- Laboratoire des PlantesExtrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-lif 2050, Tunisia; (T.A.); (A.S.); (R.G.); (C.A.)
| | - Aymen Souid
- Laboratoire des PlantesExtrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-lif 2050, Tunisia; (T.A.); (A.S.); (R.G.); (C.A.)
| | - Rim Ghabriche
- Laboratoire des PlantesExtrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-lif 2050, Tunisia; (T.A.); (A.S.); (R.G.); (C.A.)
| | - Mauro Porrini
- Department of Agricultural and Environmental Sciences, UniversitàdegliStudi di Milano, 20133 Milan, Italy; (M.P.); (G.A.S.)
| | - Stanley Lutts
- Groupe de Recherche enPhysiologieVégétale (GRPV), Earth and Life Institute, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium;
| | - Gian Attilio Sacchi
- Department of Agricultural and Environmental Sciences, UniversitàdegliStudi di Milano, 20133 Milan, Italy; (M.P.); (G.A.S.)
| | - Chedly Abdelly
- Laboratoire des PlantesExtrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-lif 2050, Tunisia; (T.A.); (A.S.); (R.G.); (C.A.)
| | - Tahar Ghnaya
- Laboratoire des PlantesExtrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-lif 2050, Tunisia; (T.A.); (A.S.); (R.G.); (C.A.)
- Higher Institute of Arts and Crafts of Tataouine, University of Gabes Erriadh City, Zrig-Gabes 6072, Tunisia
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Kamel Abdel Aal A, Osman S, Fayez M, Souid A, Mahmoud K, Abou Elkassem A, Shoreibah M. 3:00 PM Abstract No. 52 Comparison between ultrasound and angiographic findings in patients presenting with recurrent ascites and undergoing transjugular intrahepatic portosystemic shunt revision. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Abdel Aal AK, Osman S, Fayez M, Fadala H, Souid A, Elkassem AA, Li Y, Shoreibah M, Mahmoud K. Abstract No. 519 Safety and efficacy of transarterial chemoembolization using small diameter drug-eluting beads followed by microwave ablation for the treatment of unresectable hepatocellular carcinoma. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Souid A, Bellani L, Gabriele M, Pucci L, Smaoui A, Abdelly C, Hamed KB, Longo V. Phytochemical and Biological Activities inLimoniumSpecies Collected in Different Biotopes of Tunisia. Chem Biodivers 2019; 16:e1900216. [DOI: 10.1002/cbdv.201900216] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 05/24/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Aymen Souid
- Laboratoire des Plantes ExtrêmophilesCentre de Biotechnologie de Borj Cedria, BP 901 Hammam Lif 2050 Tunisia
- Institute of Agricultural Biology and Biotechnology (IBBA)National Research Council, Pisa Unit, Research Area of Pisa, Via Moruzzi 1 56124 Pisa Italy
| | - Lorenza Bellani
- Institute of Agricultural Biology and Biotechnology (IBBA)National Research Council, Pisa Unit, Research Area of Pisa, Via Moruzzi 1 56124 Pisa Italy
- Department of Life SciencesUniversity of Siena Via A. Moro 2 53100 Siena Italy
| | - Morena Gabriele
- Institute of Agricultural Biology and Biotechnology (IBBA)National Research Council, Pisa Unit, Research Area of Pisa, Via Moruzzi 1 56124 Pisa Italy
| | - Laura Pucci
- Institute of Agricultural Biology and Biotechnology (IBBA)National Research Council, Pisa Unit, Research Area of Pisa, Via Moruzzi 1 56124 Pisa Italy
| | - Abderrazak Smaoui
- Laboratoire des Plantes ExtrêmophilesCentre de Biotechnologie de Borj Cedria, BP 901 Hammam Lif 2050 Tunisia
| | - Chedly Abdelly
- Laboratoire des Plantes ExtrêmophilesCentre de Biotechnologie de Borj Cedria, BP 901 Hammam Lif 2050 Tunisia
| | - Karim Ben Hamed
- Laboratoire des Plantes ExtrêmophilesCentre de Biotechnologie de Borj Cedria, BP 901 Hammam Lif 2050 Tunisia
| | - Vincenzo Longo
- Institute of Agricultural Biology and Biotechnology (IBBA)National Research Council, Pisa Unit, Research Area of Pisa, Via Moruzzi 1 56124 Pisa Italy
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Souid A, Bellani L, Magné C, Zorrig W, Smaoui A, Abdelly C, Longo V, Ben Hamed K. Physiological and antioxidant responses of the sabkha biotope halophyte Limonium delicatulum to seasonal changes in environmental conditions. Plant Physiol Biochem 2018; 123:180-191. [PMID: 29247938 DOI: 10.1016/j.plaphy.2017.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/04/2017] [Accepted: 12/04/2017] [Indexed: 06/07/2023]
Abstract
In saline biotopes, different mechanisms may contribute to the tolerance of halophytes to high soil salinity and temperature, drought and other abiotic stresses, but their relative responses and their ecological plasticity for a given species remain unknown. In this study, we examined the responses of the salt marsh halophyte Limonium delicatulum to changing environmental conditions of its natural habitats (Sabkha "El Kalbia", Tunisia). The specific aim of the work was to check whether statistically significant correlations could be established between particular stress response mechanisms (ion uptake, activation of antioxidant systems) and soil parameters and climatic data associated with environmental stress. The results showed that the salinity of the soil increased during the months of June, July and August (dry period), concomitantly with a strong accumulation of salt ions in the aerial parts of the plant. Moreover, the highest antioxidant capacity of this halophyte (enzymes and antioxidant molecules) was reached during the same period of the year. The remaining periods (corresponding to the rainy season) did not show a significant difference in enzymes activities and level of antioxidants, with a minimum observed in the months of January and February. These results show a remarkable effect of salinity in the natural habitat on the activity of enzymes and antioxidant molecules. Other edaphic and climatic factors could also be involved to increase antioxidant capacity, such as nutrient deficiency, temperature and precipitation.
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Affiliation(s)
- Aymen Souid
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia; National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Lorenza Bellani
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy; Department of Life Sciences, University of Siena, Via A. Moro 2, 53100 Siena, Italy.
| | - Christian Magné
- EA2219 Géoarchitecture, Université de Brest, 6 Avenue Victor Le Gorgeu, CS 93837, 29238 Brest Cedex 3, France
| | - Walid Zorrig
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Abderrazak Smaoui
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Chedly Abdelly
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
| | - Vincenzo Longo
- National Research Council, Institute of Biology and Agricultural Biotechnology (IBBA), Pisa Unit, Research Area of Pisa, Via Moruzzi 1, 56124 Pisa, Italy
| | - Karim Ben Hamed
- Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj Cedria, BP 901, Hammam Lif 2050, Tunisia
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Al Zaabi A, Rahmani AY, Souid A. Optimal temperature for whole-body hypothermia in the newborn: an in vitro study using foreskin mitochondrial oxygen consumption. J Neonatal Perinatal Med 2014; 7:179-183. [PMID: 25322994 DOI: 10.3233/npm-14814021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVES Whole-body hypothermia (to 33.5 ± 0.5°C) is a therapeutic modality that reduces risks of death and neurodevelopmental disability in neonates subjected to hypoxic-ischemic insults. This in vitro study was designed to determine changes in neonatal cellular metabolism with temperature. Its main aim was to compare the metabolic rate at ≤33°C with that at ≥35°C. STUDY DESIGN Foreskin specimens were used as a source of neonatal tissue. Cellular respiration (mitochondrial O2 consumption) was used as a surrogate biomarker for the metabolic rate. Foreskin specimens from healthy newborns were collected immediately after circumcision and processed within one hour for measuring the rate of O2 consumption at various temperatures (±0.5°C). O2 consumption was determined as function of time from the phosphorescence decay of Pd (II) meso-tetra-(4-sulfonatophenyl)-tetrabenzoporphyrin. RESULTS In a vial sealed from air and containing foreskin specimen in phosphate-buffered saline supplemented with 5 mM glucose, [O2] decreased linearly with time, confirming its zero-order kinetics. The rate of O2 consumption (μM O2.min-1), thus, was the negative of the slope of [O2] vs. time. Cyanide inhibited O2 consumption, confirming the oxidation occurred in the respiratory chain. Cellular respiration at ≤33°C (n = 25) significantly differed from that at ≥35°C (n = 24), p < 0.001. The rate (μM O2.min-1.mg-1) at 25°C was 0.034 ± 0.006 (n = 11, p = 0.044), at 33°C was 0.029 ± 0.008 (n = 14, reference temperature), at 35°C was 0.062 ± 0.020 (2-fold higher, n = 18, p < 0.001), and at 37°C was 0.061 ± 0.009 (2-fold higher, n = 6, p < 0.001). CONCLUSIONS Neonatal foreskin cellular respiration is highly sensitive to critical temperatures (33°C vs. 35°C).
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Affiliation(s)
- A Al Zaabi
- Department of Pediatrics, Tawam Hospital, Al Ain, United Arab Emirates
| | - A Y Rahmani
- Department of Pediatrics, Tawam Hospital, Al Ain, United Arab Emirates
| | - A Souid
- Department of Pediatrics, United Arab Emirates University, College of Medicine and Health Sciences, Al Ain, United Arab Emirates
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Souid A, Dubowy RL, Greenwald Triplett D, Ingle AM, Sun J, Blaney SM, Adamson PC. Pediatric phase I trial and pharmacokinetic (PK) study of ispinesib (SB715992): A Children’s Oncology Group phase I consortium study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.10014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Sadowitz PD, Dubowy R, Souid A, Pollock BH, Weinstein H, Parmley RT, Bowman WP, Land V, Vats T, Pratt C. Phase I trial of continuous infusion carboplatin and etoposide in children with refractory acute leukemia: a Pediatric Oncology Group study. J Clin Oncol 1994; 12:1969-73. [PMID: 8083718 DOI: 10.1200/jco.1994.12.9.1969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
PURPOSE The purpose of this phase I study was to determine the toxicities and response to continuous infusion carboplatin in combination with a fixed dose of etoposide (VP-16) in children with refractory acute leukemia. PATIENTS AND METHODS From January 1989 to February 1992, 20 patients received 28 courses of treatment. Each course of treatment consisted of a 1-hour intravenous (IV) infusion of VP-16 100 mg/m2/d for 5 days, followed by a 23-hour IV infusion of carboplatin each day. The initial, total 5-day dose of carboplatin (1,000 mg/m2) was escalated by 250- to 375-mg increments to a final, total dose of 1,875 mg/m2 over 5 days. RESULTS Significant marrow suppression was observed in all patients, with prolonged marrow aplasia at the 1,875-mg/m2 dose level. Grade III diarrhea occurred in three patients; 10 patients experienced life-threatening infection and three had severe thrombocytopenic bleeding. Major marrow responses (two complete remissions and two partial remissions) occurred in four patients (20%). CONCLUSION In view of the apparent antileukemic efficacy and minimal extramedullary toxicity, carboplatin deserves further study in a phase II trial.
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Affiliation(s)
- P D Sadowitz
- Department of Pediatrics, State University of New York, Health Science Center, Syracuse
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