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Doumani N, Bou-Maroun E, Maalouly J, Tueni M, Dubois A, Bernhard C, Denat F, Cayot P, Sok N. A New pH-Dependent Macrocyclic Rhodamine B-Based Fluorescent Probe for Copper Detection in White Wine. SENSORS 2019; 19:s19204514. [PMID: 31627384 PMCID: PMC6832540 DOI: 10.3390/s19204514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 01/31/2023]
Abstract
For efficiently measuring copper (II) ions in the acidic media of white wine, a new chemosensor based on rhodamine B coupled to a tetraazamacrocyclic ring (13aneN4CH2NH2) was designed and synthesized by a one-pot reaction using ethanol as a green solvent. The obtained chemosensor was characterized via NMR, UV and fluorescent spectra. It was marked with no color emission under neutral pH conditions, with a pink color emission under acidic conditions, and a magenta color emission under acidic conditions where copper (II) ions were present. The sensitivity towards copper (II) ions was tested and verified over Ca2+, Ag+, Zn2+, Mg2+, Co2+, Ni2+, Fe2+, Pb2+, Cd2+, Fe3+, and Mn2+, with a detection limit of 4.38 × 10-8 M in the fluorescence spectrum.
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Affiliation(s)
- Nour Doumani
- UMR PAM Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France
- Département de Chimie et de Biochimie, Faculté des Sciences II, Université Libanaise, Jdeideth El Matn, Fanar 90656, Lebanon
- Département des Sciences de la Vie et de la Terre - Nutrition, Faculté des Sciences II, Université Libanaise, Jdeideth El Matn, Fanar 90656, Lebanon
| | - Elias Bou-Maroun
- UMR PAM Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France
| | - Jacqueline Maalouly
- Département de Chimie et de Biochimie, Faculté des Sciences II, Université Libanaise, Jdeideth El Matn, Fanar 90656, Lebanon
| | - Maya Tueni
- Département des Sciences de la Vie et de la Terre - Nutrition, Faculté des Sciences II, Université Libanaise, Jdeideth El Matn, Fanar 90656, Lebanon
| | - Adrien Dubois
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 5260, CNRS-12 Université de Bourgogne, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Claire Bernhard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 5260, CNRS-12 Université de Bourgogne, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Franck Denat
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 5260, CNRS-12 Université de Bourgogne, 9 Avenue Alain Savary, 21078 Dijon, France
| | - Philippe Cayot
- UMR PAM Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France
| | - Nicolas Sok
- UMR PAM Procédés Alimentaires et Microbiologiques, Université de Bourgogne Franche-Comté/AgroSup Dijon, 1 esplanade Erasme, 21000 Dijon, France.
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Asano M, Yamasaki K, Yamauchi T, Terui T, Aiba S. Epidermal iron metabolism for iron salvage. J Dermatol Sci 2017; 87:101-109. [PMID: 28450059 DOI: 10.1016/j.jdermsci.2017.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/30/2017] [Accepted: 04/11/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND The epidermis shows a reverse iron gradient from the basal layer to the stratum corneum and consequently, little epidermal intracellular iron is lost by desquamation. OBJECTIVE To clarify the underlying mechanism of iron salvage. METHODS We first used immunohistochemistry and mRNA quantification to demonstrate the distinctive expression pattern of iron metabolism molecules. The obtained results were confirmed using normal human epidermal keratinocytes (NHEKs) during in vitro differentiation. We next examined the effects of reducing ferroportin expression in vitro by ferroportin-specific siRNAs or hepcidin on the intracellular iron content of cultured NHEKs. Finally, we compared epidermal and systemic iron metabolism between FpnEpi-KO mice and control mice. RESULTS The results of both mRNA and protein expression analysis showed that most molecules participating in iron import and storage were expressed in the lower epidermis, while those involved in iron release from heme or iron transport were expressed in the upper epidermis. Consistent with their expression, keratinocyte differentiation reduced intracellular iron content. We next demonstrated that reducing ferroportin expression in vitro by ferroportin-specific siRNAs or hepcidin significantly increased the intracellular iron content. Finally, we showed that the iron content of the epidermis and squames was significantly greater in FpnEpi-KO mice than in control mice, and that FpnEpi-KO exhibited a more rapid decrease in blood hemoglobin concentration than control mice on a low iron diet. CONCLUSION These studies demonstrated that the epidermis is equipped with a machinery by which intracellular iron in differentiated keratinocytes is excreted to the extracellular space before reaching the stratum corneum.
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Affiliation(s)
- Masayuki Asano
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Kenshi Yamasaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Takashi Yamauchi
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Tadashi Terui
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Setsuya Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan.
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Su CK, Sun YC, Tzeng SF, Yang CS, Wang CY, Yang MH. In vivo monitoring of the transfer kinetics of trace elements in animal brains with hyphenated inductively coupled plasma mass spectrometry techniques. MASS SPECTROMETRY REVIEWS 2010; 29:392-424. [PMID: 19437493 DOI: 10.1002/mas.20240] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The roles of metal ions to sustain normal function and to cause dysfunction of neurological systems have been confirmed by various studies. However, because of the lack of adequate analytical method to monitor the transfer kinetics of metal ions in the brain of a living animal, research on the physiopathological roles of metal ions in the CNS remains in its early stages and more analytical efforts are still needed. To explicitly model the possible links between metal ions and physiopathological alterations, it is essential to develop in vivo monitoring techniques that can bridge the gap between metalloneurochemistry and neurophysiopathology. Although inductively coupled plasma mass spectrometry (ICP-MS) is a very powerful technique for multiple trace element analyses, when dealing with chemically complex microdialysis samples, the detection capability is largely limited by instrumental sensitivity, selectivity, and contamination that arise from the experimental procedure. As a result, in recent years several high efficient and clean on-line sample pretreatment systems have been developed and combined with microdialysis and ICP-MS for the continuous and in vivo determination of the concentration-time profiles of metal ions in the extracellular space of rat brain. This article reviews the research relevant to the development of analytical techniques for the in vivo determination of dynamic variation in the concentration levels of metal ions in a living animal.
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Affiliation(s)
- Cheng-Kuan Su
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
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Sammeta SM, Vaka SRK, Murthy SN. Transcutaneous sampling of ciprofloxacin and 8-methoxypsoralen by electroporation (ETS technique). Int J Pharm 2008; 369:24-9. [PMID: 19026733 DOI: 10.1016/j.ijpharm.2008.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Revised: 10/23/2008] [Accepted: 10/25/2008] [Indexed: 10/21/2022]
Abstract
The novel technique of transcutaneous sampling of drugs by electroporation was developed to study the dermatokinetics of ciprofloxacin and 8-methoxypsoralen. The selected drugs differ in their aqueous solubility and also with respect to the extent of protein binding. Ciprofloxacin (15mg/kg) was administered i.v. through tail vein, whereas 8-methoxypsoralen (5mg/kg) was given by oral administration, in hairless rats and the time course of drug concentration in the plasma was determined. Drug concentration in the dermal extracellular fluid (ECF) was determined by ETS and microdialysis sampling techniques. The extent of penetration into dermal ECF for ciprofloxacin and 8-methoxypsoralen was found to be approximately 19-32% and approximately 13-23%, respectively. The drug concentration in the dermal ECF determined by ETS and microdialysis did not differ significantly from each other and so as were the pharmacokinetic parameters. The results show that ETS can be utilized as a potential technique for sampling of drugs from the dermal ECF.
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Affiliation(s)
- Srinivasa M Sammeta
- Department of Pharmaceutics, The University of Mississippi, University, MS 38677, USA
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Leveque N, Robin S, Muret P, Mac-Mary S, Makki S, Humbert P. High iron and low ascorbic acid concentrations in the dermis of atopic dermatitis patients. Dermatology 2004; 207:261-4. [PMID: 14571067 DOI: 10.1159/000073087] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2002] [Accepted: 04/07/2003] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease in which reactive oxygen species (ROS) may be involved. Iron catalyses ROS formation and ascorbic acid (AA) scavenges these species. OBJECTIVE The aim of this work was to determine iron and AA levels in AD patients' dermis and to compare their concentrations with those of healthy volunteers' dermis. METHODS Five AD patients and 5 healthy subjects (controls) were enrolled in this study. Iron and AA were collected from human dermis by microdialysis and assessed by atomic absorption spectrometry and gas chromatography-mass spectrometry, respectively. RESULTS The AD dermis demonstrated higher iron concentrations (44.3 +/- 4.6 microg/l) compared to controls (21.8 +/- 1.2 microg/l) as well as a significantly lower concentration of AA (46.7 +/- 0.6 vs. 176.8 +/- 14.5 microg/ml, respectively). CONCLUSION These results suggest that iron and AA dermis levels could be indicators of inflammatory tissues and might be implicated in dermatological diseases such as AD.
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Affiliation(s)
- Nathalie Leveque
- Laboratoire d'Ingénierie et de Biologie Cutanées, Faculté de Médecine et de Pharmacie, Place Saint Jacques, Besançon, France
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Leveque N, Robin S, Makki S, Muret P, Rougier A, Humbert P. Iron and ascorbic acid concentrations in human dermis with regard to age and body sites. Gerontology 2003; 49:117-22. [PMID: 12574671 DOI: 10.1159/000067951] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2002] [Accepted: 06/12/2002] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Reactive oxygen species (ROS) contribute to processes relating to cutaneous aging. Iron catalyses ROS formation whereas ascorbic acid (AA) plays a fundamental role in defending the organism against undesirable ROS action. OBJECTIVE The aim of this work was to determine the ex vivo iron and AA concentrations in human dermis from different age groups to better understand their role. METHODS Skin fragments were collected from 66 female patients during surgical operations and were grouped according to age: group I (<15 years, before puberty, n = 12), group II (15-50 years, adults, n = 42), and group III (>50 years, advanced age adults, n = 12). Two sites were investigated: the abdomen (unexposed areas) and face (exposed sites). Iron and AA were collected from human dermis by microdialysis and assessed by atomic absorption spectrometry and gas chromatography mass spectrometry, respectively. RESULTS Iron concentrations in the dermis were significantly higher in group III (27.4 +/- 20.9 microg/l) than in group I (13.8 +/- 3.3 microg/l; p< 0.05 ). An inverse correlation between AA dermis levels and increasing age was detected. For groups III and I, iron and AA concentrations were significantly different in dermis from the face compared to that of the abdomen (p < 0.05). CONCLUSION This study shows for the first time that there is a direct relationship between iron and AA concentrations in the dermis and aging. Moreover, iron and AA concentrations differed according to body site.
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Affiliation(s)
- Nathalie Leveque
- Laboratoire d'Ingénierie et de Biologie Cutanées, Faculté de Médecine et de Pharmacie, Université de Franche Comté, Besançon, France
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