Abstract The purpose of this study was to determine the effect of pregnancy on serum concentrations of estradiol, progesterone and prolactin in Long-Evans rats. Female Long-Evans rats, both pregnant and non-pregnant, were used. Four groups (n = 10 rats in each group) were studied: Non-pregnant rats; pregnant rats at 7, 14, and 20 gestational days. Maternal blood was collected transcardially, and serum estradiol, progesterone, and prolactin were measured by radioimmunoassay. Commercial kits from Diagnostic Products Corporation for estradiol and progesterone, and an established in-house double antibody assay for prolactin, were utilized. Statistical analysis was performed using ANOVA, followed by Newman-Keuls post hoc test when applicable. Estradiol concentrations were increased throughout gestation from 16.2 ± 6.2 pg/mL (mean ± SD) in the non-pregnant rat to 23.2 ± 8.8, 25.0 ± 7.7, and 30.3 ± 29.6 pg/mL on gestational days 7, 14, and 20, respectively. Progesterone showed the same trend, increasing from 7.2 ± 3.6 ng/mL in the non-pregnant rats to 25.9 ± 4.8, 43.0 ± 8.6, and 47.3 ± 8.8 ng/mL on gestational days 7, 14, and 20, respectively (p<0.05). Prolactin levels were decreased from the non-pregnant state (39.2 ± 22.8 ng/mL) through the early and mid-pregnancy (25.2 ± 20.4, 16.5 ± 16.9 ng/mL, respectively; p<0.05) and rose to pre-pregnancy levels on pregnancy day 20 (39.2 ± 20.4 ng/mL). The effect of pregnancy on serum hormone concentrations in Long-Evans rats were determined and compared to non-pregnant controls. This data may assist in simulating various stages of pregnancy for use in hormonal and receptor binding studies, and in isolating pregnancy hormone effects on the central nervous system in the Long-Evans rat.
{"title":"Maternal Serum Hormone Concentrations in Long-Evans Rats","authors":"M. D. Mordechai Hallak, John W. Hotra","doi":"10.1081/TMA-120017898","DOIUrl":"https://doi.org/10.1081/TMA-120017898","url":null,"abstract":"Abstract The purpose of this study was to determine the effect of pregnancy on serum concentrations of estradiol, progesterone and prolactin in Long-Evans rats. Female Long-Evans rats, both pregnant and non-pregnant, were used. Four groups (n = 10 rats in each group) were studied: Non-pregnant rats; pregnant rats at 7, 14, and 20 gestational days. Maternal blood was collected transcardially, and serum estradiol, progesterone, and prolactin were measured by radioimmunoassay. Commercial kits from Diagnostic Products Corporation for estradiol and progesterone, and an established in-house double antibody assay for prolactin, were utilized. Statistical analysis was performed using ANOVA, followed by Newman-Keuls post hoc test when applicable. Estradiol concentrations were increased throughout gestation from 16.2 ± 6.2 pg/mL (mean ± SD) in the non-pregnant rat to 23.2 ± 8.8, 25.0 ± 7.7, and 30.3 ± 29.6 pg/mL on gestational days 7, 14, and 20, respectively. Progesterone showed the same trend, increasing from 7.2 ± 3.6 ng/mL in the non-pregnant rats to 25.9 ± 4.8, 43.0 ± 8.6, and 47.3 ± 8.8 ng/mL on gestational days 7, 14, and 20, respectively (p<0.05). Prolactin levels were decreased from the non-pregnant state (39.2 ± 22.8 ng/mL) through the early and mid-pregnancy (25.2 ± 20.4, 16.5 ± 16.9 ng/mL, respectively; p<0.05) and rose to pre-pregnancy levels on pregnancy day 20 (39.2 ± 20.4 ng/mL). The effect of pregnancy on serum hormone concentrations in Long-Evans rats were determined and compared to non-pregnant controls. This data may assist in simulating various stages of pregnancy for use in hormonal and receptor binding studies, and in isolating pregnancy hormone effects on the central nervous system in the Long-Evans rat.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"4 1","pages":"103 - 110"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90924975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Saraçoğlu, U. Divrikli, M. Soylak, L. Elçi, M. Doğan
Abstract The trace heavy metal contents of twenty four textile samples produced in Turkey have been determined by atomic absorption spectrometry (AAS) after separation/preconcentration procedures including solid phase extraction and coprecipitation. The levels of the investigated ions in textile material were found to be below the values given by Oeko-Tex with some exceptions for lead and nickel for baby clothing.
{"title":"Determination of Trace Elements of Some Textiles by Atomic Absorption Spectrometry","authors":"S. Saraçoğlu, U. Divrikli, M. Soylak, L. Elçi, M. Doğan","doi":"10.1081/TMA-120020273","DOIUrl":"https://doi.org/10.1081/TMA-120020273","url":null,"abstract":"Abstract The trace heavy metal contents of twenty four textile samples produced in Turkey have been determined by atomic absorption spectrometry (AAS) after separation/preconcentration procedures including solid phase extraction and coprecipitation. The levels of the investigated ions in textile material were found to be below the values given by Oeko-Tex with some exceptions for lead and nickel for baby clothing.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"19 1","pages":"389 - 396"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75360225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Arnay‐de‐la‐Rosa, E. González‐Reimers, J. Velasco-Vázquez, L. Galindo-Martín, F. Santolaria-Fernández
Abstract This study was performed in order to determine the levels of lead and cadmium in bone samples of two historic (18th century) population groups from the Canary Islands (La Concepción and San Francisco), comparing the results with those obtained in modern inhabitants. We found that historic individuals from La Concepción (Tenerife) and San Francisco (Gran Canaria) showed significantly lower bone lead (8.84 ± 13.41 mg/kg and 6.73 ± 4.06 mg/kg, respectively) than the modern population (30.53 ± 14.62 mg/kg). On the contrary, bone cadmium, although slightly lower in the ancient population groups, was not significantly different when compared with the modern one. Bone lead and cadmium kept, however, a significant relationship among the individuals from La Concepción, suggesting a common source of exposure.
{"title":"Bone Cadmium and Lead in 18th Century Population Groups from the Canary Islands","authors":"M. Arnay‐de‐la‐Rosa, E. González‐Reimers, J. Velasco-Vázquez, L. Galindo-Martín, F. Santolaria-Fernández","doi":"10.1081/TMA-120017916","DOIUrl":"https://doi.org/10.1081/TMA-120017916","url":null,"abstract":"Abstract This study was performed in order to determine the levels of lead and cadmium in bone samples of two historic (18th century) population groups from the Canary Islands (La Concepción and San Francisco), comparing the results with those obtained in modern inhabitants. We found that historic individuals from La Concepción (Tenerife) and San Francisco (Gran Canaria) showed significantly lower bone lead (8.84 ± 13.41 mg/kg and 6.73 ± 4.06 mg/kg, respectively) than the modern population (30.53 ± 14.62 mg/kg). On the contrary, bone cadmium, although slightly lower in the ancient population groups, was not significantly different when compared with the modern one. Bone lead and cadmium kept, however, a significant relationship among the individuals from La Concepción, suggesting a common source of exposure.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"11 1","pages":"189 - 196"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90180926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The distribution of natural 40K, 226Ra and 228Ra and artificial 137Cs has been investigated in nonvascular mosses (9 species) and lichens (10 species) and vascular gymnosperm (1 species), angiosperm trees and shrubs (3 species) over the Kozani-Ptolemaïda-Amynteon lignite basin in West Macedonia, Greece. Four lignite power plants producing about 70% of the electric energy of the country are to be found in this region. Both specific activity and transfer factors of these radionuclides have been determined by means of experiments. This study indicates that with regard to 226Ra and 137Cs, nonvascular lichens and mosses have a much higher transfer factor (2.27 for 226Ra and 43.77 137Cs) compared with vascular plants (0.17 for 226Ra and 0.03 137Cs), but a lower one for natural 40K (0.493 for lichens and mosses and respectively 1.190 for vascular plants). Compared with unpolluted areas (0.25 Bq/kg), the 226Ra specific activity in lichens and mosses was systematically higher (26.43 and 56.74 Bq/kg respectively).
{"title":"Natural and Artificial Radionuclides Distribution in Some Lichens, Mosses, and Trees in the Vicinity of Lignite Power Plants from West Macedonia, Greece","authors":"L. Tsikritzis, S. Ganatsios, O. Duliu, T. Sawidis","doi":"10.1081/TMA-120023070","DOIUrl":"https://doi.org/10.1081/TMA-120023070","url":null,"abstract":"Abstract The distribution of natural 40K, 226Ra and 228Ra and artificial 137Cs has been investigated in nonvascular mosses (9 species) and lichens (10 species) and vascular gymnosperm (1 species), angiosperm trees and shrubs (3 species) over the Kozani-Ptolemaïda-Amynteon lignite basin in West Macedonia, Greece. Four lignite power plants producing about 70% of the electric energy of the country are to be found in this region. Both specific activity and transfer factors of these radionuclides have been determined by means of experiments. This study indicates that with regard to 226Ra and 137Cs, nonvascular lichens and mosses have a much higher transfer factor (2.27 for 226Ra and 43.77 137Cs) compared with vascular plants (0.17 for 226Ra and 0.03 137Cs), but a lower one for natural 40K (0.493 for lichens and mosses and respectively 1.190 for vascular plants). Compared with unpolluted areas (0.25 Bq/kg), the 226Ra specific activity in lichens and mosses was systematically higher (26.43 and 56.74 Bq/kg respectively).","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"1 1","pages":"543 - 554"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88876878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Electrochemical oxidation of l-ascorbic acid by a chlorpromazine and a potassium iodide at a platinum electrode in 5 × 10−1 M K2SO4 + 5 × 10−1 M KHSO4 has been studied. l-Ascorbic acid was the oxidation product, which has been verified by spectrophotometry and potentiometry. The rate constant for the catalytic reaction was evaluated as (6.4 ± 0.05) × 103 M−1 s−1 for a chlorpromazine and as (7.4 ± 0.04) × 103 M−1 s−1 for a potassium iodide. Experimental conditions, which maximize the current efficiency of this electrochemical oxidation, such as pH value and the concentration of the catalyst, were also investigated and discussed in this article.
摘要研究了氯丙嗪和碘化钾在5 × 10−1 M K2SO4 + 5 × 10−1 M KHSO4中在铂电极上对l-抗坏血酸的电化学氧化。l-抗坏血酸是氧化产物，经分光光度法和电位法证实。氯丙嗪的催化反应速率常数为(6.4±0.05)× 103 M−1 s−1，碘化钾的催化反应速率常数为(7.4±0.04)× 103 M−1 s−1。本文还对使电化学氧化电流效率最大化的实验条件，如pH值和催化剂浓度进行了研究和讨论。
{"title":"Voltammetric Investigation of Reaction of l-Ascorbic Acid with Chlorpromazine Hydrochloride and Potassium Iodide","authors":"E. Kleszczewska, K. Mielech","doi":"10.1081/TMA-120020255","DOIUrl":"https://doi.org/10.1081/TMA-120020255","url":null,"abstract":"Abstract Electrochemical oxidation of l-ascorbic acid by a chlorpromazine and a potassium iodide at a platinum electrode in 5 × 10−1 M K2SO4 + 5 × 10−1 M KHSO4 has been studied. l-Ascorbic acid was the oxidation product, which has been verified by spectrophotometry and potentiometry. The rate constant for the catalytic reaction was evaluated as (6.4 ± 0.05) × 103 M−1 s−1 for a chlorpromazine and as (7.4 ± 0.04) × 103 M−1 s−1 for a potassium iodide. Experimental conditions, which maximize the current efficiency of this electrochemical oxidation, such as pH value and the concentration of the catalyst, were also investigated and discussed in this article.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"69 1","pages":"203 - 215"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78253270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Vegetation samples were collected at 112 locations on the Croatian island Krk in the northern Adriatic sea. The collected samples were analyzed for 12 chemical elements (Ca, Cr, Mn, Fe, Ni, Cu, Zn, As, Br, Rb, Sr, Pb) by EDXRF method. For all of the measured elements concentration maps for the island were produced using kriging gridding methodology. This was done in order to relate variations in chemical composition of vegetation with that of soils as well as to the soil type, local environment, prevalent use of soil, and other antropogenic influences. Concentrations maps for the chemical elements have also been used in the evaluation of chemical elements transfer from plants to grazing animals, and eventually to the inhabitants of the island. Elemental transfer from the soil to the plants was confirmed by canonical correlation analysis. Good positive correlation between elemental concentration in soil and grass samples (canonical R = 0.647) was found.
{"title":"Elemental Composition of the Vegetation on the Island Krk","authors":"V. Valković, V. Oreščanin, A. Kutle, J. Obhodas","doi":"10.1081/TMA-120023066","DOIUrl":"https://doi.org/10.1081/TMA-120023066","url":null,"abstract":"Abstract Vegetation samples were collected at 112 locations on the Croatian island Krk in the northern Adriatic sea. The collected samples were analyzed for 12 chemical elements (Ca, Cr, Mn, Fe, Ni, Cu, Zn, As, Br, Rb, Sr, Pb) by EDXRF method. For all of the measured elements concentration maps for the island were produced using kriging gridding methodology. This was done in order to relate variations in chemical composition of vegetation with that of soils as well as to the soil type, local environment, prevalent use of soil, and other antropogenic influences. Concentrations maps for the chemical elements have also been used in the evaluation of chemical elements transfer from plants to grazing animals, and eventually to the inhabitants of the island. Elemental transfer from the soil to the plants was confirmed by canonical correlation analysis. Good positive correlation between elemental concentration in soil and grass samples (canonical R = 0.647) was found.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"20 1","pages":"501 - 512"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73821042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Donald S. MacLean-McDavitt, J. David Robertson, M. Jay
Abstract The subcutaneous delivery of iodinated bovine serum albumin (I-BSA) incorporated into a barium alginate hydrogel matrix, synthesized from barium bromide, was monitored in vivo by radioisotope-induced X-ray fluorescence. By measuring the iodine, barium, and bromine X-ray fluorescence signals, we were able to simultaneously monitor the status of an entrapped protein, the hydrogel delivery device, and the spectator ions in the hydrogel. The release of the labeled protein followed first-order kinetics with half-lives of 6 h for the I-BSA in phosphate buffer solution up to 28 h for the I-BSA incorporated in the alginate hydrogel. The degradation of the barium alginate hydrogel was biphasic, and the disappearance of the bromide spectator ion from the hydrogel was well described by Fickian diffusion.
{"title":"The In-Vivo Co-monitoring of Protein, Polymeric Delivery System, and Spectator Ions by Radioisotope Induced X-Ray Fluorescence","authors":"Donald S. MacLean-McDavitt, J. David Robertson, M. Jay","doi":"10.1081/TMA-120017893","DOIUrl":"https://doi.org/10.1081/TMA-120017893","url":null,"abstract":"Abstract The subcutaneous delivery of iodinated bovine serum albumin (I-BSA) incorporated into a barium alginate hydrogel matrix, synthesized from barium bromide, was monitored in vivo by radioisotope-induced X-ray fluorescence. By measuring the iodine, barium, and bromine X-ray fluorescence signals, we were able to simultaneously monitor the status of an entrapped protein, the hydrogel delivery device, and the spectator ions in the hydrogel. The release of the labeled protein followed first-order kinetics with half-lives of 6 h for the I-BSA in phosphate buffer solution up to 28 h for the I-BSA incorporated in the alginate hydrogel. The degradation of the barium alginate hydrogel was biphasic, and the disappearance of the bromide spectator ion from the hydrogel was well described by Fickian diffusion.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"68 1","pages":"73 - 83"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73880128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Plants and aqueous extracts of Alternanthera maritima (aerial parts and roots), Alternanthera brasiliana and Alternanthera tenella colla (total plant) were selected for analysis of metals bioaccumulation. The synchrotron radiation total reflection X-ray fluorescence (SRTXRF) was used for excitation of the samples and a Si(Li) detector for the detection of the characteristic X-rays emitted by the sample elements. The elements P, S, K, Ca, Ti, Mn, Fe, Cu, Zn, Rb, and Sr were detected in all samples. Further-more Al, Si, Cl, Ni, Br, Rb, Cd, Sn, Sb, Hg, and Pb in Alternanthera maritima samples; Si, Co, Cd, Sn, Sb, and Ce in Alternanthera brasiliana and Al, Si, Co, Ni, Br, Cd, Sn, Sb, and Ce in Alternanthera tenella colla were found. The concentration obtained in the samples for K-shell lines varied from 1.63 µg g−1 for Ni to 3.34 × 105 µg g−1for K, and for L-shell the values ranged from 1.64 x 101 µg g−1 for Cd to 6.71 × 102 µg g−1 for Sn.
{"title":"Analysis of Medicinal Plants and Crude Extracts by Synchrotron Radiation Total Reflection X-Ray Fluorescence","authors":"M. Salvador, D. A. Dias, S. Moreira, O. Zucchi","doi":"10.1081/TMA-120020272","DOIUrl":"https://doi.org/10.1081/TMA-120020272","url":null,"abstract":"Abstract Plants and aqueous extracts of Alternanthera maritima (aerial parts and roots), Alternanthera brasiliana and Alternanthera tenella colla (total plant) were selected for analysis of metals bioaccumulation. The synchrotron radiation total reflection X-ray fluorescence (SRTXRF) was used for excitation of the samples and a Si(Li) detector for the detection of the characteristic X-rays emitted by the sample elements. The elements P, S, K, Ca, Ti, Mn, Fe, Cu, Zn, Rb, and Sr were detected in all samples. Further-more Al, Si, Cl, Ni, Br, Rb, Cd, Sn, Sb, Hg, and Pb in Alternanthera maritima samples; Si, Co, Cd, Sn, Sb, and Ce in Alternanthera brasiliana and Al, Si, Co, Ni, Br, Cd, Sn, Sb, and Ce in Alternanthera tenella colla were found. The concentration obtained in the samples for K-shell lines varied from 1.63 µg g−1 for Ni to 3.34 × 105 µg g−1for K, and for L-shell the values ranged from 1.64 x 101 µg g−1 for Cd to 6.71 × 102 µg g−1 for Sn.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"1935 1","pages":"377 - 388"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91146047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Salt stress alters the meristem size, the mitotic index, the progress of cell division and the size of the cortical cells in wheat roots. The effects are usually more, but not much more pronounced with the sensitive species Triticum aestivum (var. Tanit) than they are with the more tolerant species Triticum durum (var. Ben Béchir). It may be that the main mechanisms responsible for the relative sensitivity/tolerance of wheat to salt stress are not localized in the root system.
{"title":"Root Cell Characteristics of Two Wheat Species Differing in Their Sensitivity to NaCl in Response to Salt Stress","authors":"N. Jbir, Saïda Amar, A. Ayadi","doi":"10.1081/TMA-120025820","DOIUrl":"https://doi.org/10.1081/TMA-120025820","url":null,"abstract":"Abstract Salt stress alters the meristem size, the mitotic index, the progress of cell division and the size of the cortical cells in wheat roots. The effects are usually more, but not much more pronounced with the sensitive species Triticum aestivum (var. Tanit) than they are with the more tolerant species Triticum durum (var. Ben Béchir). It may be that the main mechanisms responsible for the relative sensitivity/tolerance of wheat to salt stress are not localized in the root system.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"22 1","pages":"707 - 712"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81563893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Tahtat, Mohamed Amine Benamar, Kamel Aklil, M. Mouzai, Ahmed Azebouche
Abstract In this present work, we have measured the selenium content in different foods frequently consumed in the region of Algiers. A nutritional deficiency in selenium is a risk factor for cardiovascular diseases, muscular dystrophy and hepatic necrosis. Freeze-dried samples of food were collected and measured by INAA (Instrumental Neutron Activation Analysis). We have established the annual consumption of selenium for five socio-professional categories, on the basis of data given by government agencies. We have determined the mean of selenium daily consumption by people in the region of Algiers as 130 µg per day and concluded that the daily selenium contribution in the region of Algiers is satisfactory.
{"title":"Selenium Intake in Foods Ration in the Region of Algiers","authors":"D. Tahtat, Mohamed Amine Benamar, Kamel Aklil, M. Mouzai, Ahmed Azebouche","doi":"10.1081/TMA-120017914","DOIUrl":"https://doi.org/10.1081/TMA-120017914","url":null,"abstract":"Abstract In this present work, we have measured the selenium content in different foods frequently consumed in the region of Algiers. A nutritional deficiency in selenium is a risk factor for cardiovascular diseases, muscular dystrophy and hepatic necrosis. Freeze-dried samples of food were collected and measured by INAA (Instrumental Neutron Activation Analysis). We have established the annual consumption of selenium for five socio-professional categories, on the basis of data given by government agencies. We have determined the mean of selenium daily consumption by people in the region of Algiers as 130 µg per day and concluded that the daily selenium contribution in the region of Algiers is satisfactory.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"109 1","pages":"181 - 188"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90677299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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