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D.Carboni A, Weisstaub A, Ferrero C, Zuleta A, C. Puppo M. Impact of lentil-wheat bread on calcium metabolism, cecal and serum parameters in growing Wistar rats. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101805] [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: 10/18/2022]
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Galán MG, Weisstaub A, Llopart EE, Zuleta A, Drago SR. Correction: Effects of extruded whole-grain sorghum ( Sorghum bicolor (L.) Moench) based diets on calcium absorption and bone health of growing Wistar rats. Food Funct 2022; 13:1680. [PMID: 35037927 DOI: 10.1039/d1fo90113c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Effects of extruded whole-grain sorghum (Sorghum bicolor (L.) Moench) based diets on calcium absorption and bone health of growing Wistar rats' by María Gimena Galán et al., Food Funct., 2020, 11, 508-513, DOI: 10.1039/C9FO01817D.
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Affiliation(s)
- María Gimena Galán
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000) Santa Fe, Argentina.
| | - Adriana Weisstaub
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica (UBA), Junín 956, CABA, Argentina
| | - Emilce Elina Llopart
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000) Santa Fe, Argentina.
| | - Angela Zuleta
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica (UBA), Junín 956, CABA, Argentina
| | - Silvina Rosa Drago
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000) Santa Fe, Argentina.
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Galán MG, Cian RE, Albarracín M, López-Oliva Muñoz ME, Weisstaub A, Zuleta A, Drago SR. Refined sorghum flours precooked by extrusion enhance the integrity of the colonic mucosa barrier and promote a hepatic antioxidant environment in growing Wistar rats. Food Funct 2021; 11:7638-7650. [PMID: 32966464 DOI: 10.1039/d0fo01160f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effects of precooked-refined sorghum flour consumption on antioxidant status, lipid profile, and colonic and bone health were evaluated. Twenty-four male Wistar rats were fed with control diet (C), or red or white precooked-refined sorghum based diets (SD) for 60 days. The intake of SD was lower than that of C, but the efficiency of all diets was similar. Rats fed with SD showed lower feces excretion, cecal pH and enzyme activities (β-glucosidase, β-glucuronidase and mucinase) than C. White SD improved intestinal architecture, cell proliferation and apoptosis, upregulated ZO1 and occludin tight junction proteins and stimulated goblet cell differentiation, enhancing the integrity of the mucosa barrier in both proximal and distal colonic mucosa in a better way than red SD. Consumption of SD significantly decreased serum triglyceride levels compared with the C diet. The mineral content of the right femur was not different among diets. The liver enzyme activities (superoxide dismutase, catalase, glutathione reductase, and glutathione peroxidase) did not show differences among diets. Liver reducing power and reduced glutathione/oxidize glutathione ratio were higher for animals consuming SD than C. It can be concluded that the consumption of precooked refined sorghum flours still has beneficial effects for health, mainly at the colonic level, despite the lower phenolics and fibre contents of refined flours with respect to whole grain flours.
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Affiliation(s)
- María Gimena Galán
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000), Santa Fe, Argentina.
| | - Raúl Esteban Cian
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000), Santa Fe, Argentina.
| | - Micaela Albarracín
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000), Santa Fe, Argentina.
| | | | - Adriana Weisstaub
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, (UBA), Junín 956, CABA, Argentina
| | - Angela Zuleta
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, (UBA), Junín 956, CABA, Argentina
| | - Silvina Rosa Drago
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000), Santa Fe, Argentina.
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Galán MG, Weisstaub A, Zuleta A, Drago SR. Effects of extruded whole-grain sorghum (Sorghum bicolor (L.) Moench) based diets on calcium absorption and bone health of growing Wistar rats. Food Funct 2020; 11:508-513. [PMID: 31833511 DOI: 10.1039/c9fo01817d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Apparent calcium absorption, total bone mineral content and density, and mineral contents of the right femur were studied using a growing rat model. Twenty-four male Wistar rats were fed with diets based on extruded whole grain red (RSD) or white sorghum (WSD), and control diet (CD) up to 60 days. The animals fed with sorghum diets consumed less and gained less weight compared to those fed with CD, but the efficiency of all diets was similar. Calcium intake was lower in animals fed with sorghum diets, related to the lower total intake of these animals. Apparent calcium absorption in animals fed with RSD was lower than in those fed with CD (CD: 72.7%, RSD: 51.0%, WSD: 64.8%). No significant differences in bone mineral density of total body, spin, femur, distal femur, tibia and proximal tibia were observed among the groups. However, Ca and P contents in the right femur of the rats consuming RSD were lower, indicating a certain imbalance in the metabolism of these minerals.
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Affiliation(s)
- María Gimena Galán
- Instituto de Tecnología de Alimentos, CONICET, FIQ - UNL, 1° de Mayo 3250, (3000) Santa Fe, Argentina.
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Albarracín M, Dyner L, Giacomino MS, Weisstaub A, Zuleta A, Drago SR. Modification of nutritional properties of whole rice flours (Oryza sativa L.) by soaking, germination, and extrusion. J Food Biochem 2019; 43:e12854. [PMID: 31353715 DOI: 10.1111/jfbc.12854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 02/08/2019] [Revised: 03/06/2019] [Accepted: 03/19/2019] [Indexed: 11/29/2022]
Abstract
Modifications of nutritional properties (amino acids, available lysine, protein digestibility, fatty acids, fiber, inositol phosphate (IPs), free and bound phenolics, and antioxidant properties) of whole rice ingredients processed by soaking, germination, and/or extrusion cooking were evaluated. Soaking and germination reduced proteins by lixiviation and hydrolysis, respectively. Lysine was the limiting amino acid. Polyunsaturated fatty acids increased after germination. Protein digestibility was 100% for germinated rice, decreased to 75% after the extrusion process. Fiber content decreased around 73% after the extrusion of soaked and germinated flours. Soaking-extrusion combined processes produces >50% IPs reduction. Germination-extrusion produced flours with the highest antioxidant capacity (54 µmol trolox g-1 ), which was in accordance with the highest content of free and bound phenolics (66 and 69 mg GA 100 g-1 , respectively). Grain treatments changed nutritional properties of flours resulting in low antinutrient whole grain ingredients, which could be used to develop whole grain-based foods. PRACTICAL APPLICATIONS: Phytic acid (PA) is an antinutrient having negative effects on mineral bioavailability and protein digestibility. There are processes such as soaking, germination, and extrusion, which alone or combined can decrease PA. However, nutritional composition and functionality of flours can change. We observed PA was highly reduced by soaking or germination combined with extrusion and antioxidant capacity and phenolic content increased in germinated and germinated-extruded flours compared to the other treatments. These modified whole grain rice flours low in anti-nutrients could be used in the production of expanded products or pre-cooked ingredients to develop whole grain based foods nutritionally improved.
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Affiliation(s)
- Micaela Albarracín
- Facultad de Ingeniería Química, Instituto de Tecnología de Alimentos, CONICET, UNL, Santa Fe, Argentina
| | - Luis Dyner
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - María Silvia Giacomino
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Adriana Weisstaub
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Angela Zuleta
- Departamento de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, UBA, Buenos Aires, Argentina
| | - Silvina R Drago
- Facultad de Ingeniería Química, Instituto de Tecnología de Alimentos, CONICET, UNL, Santa Fe, Argentina
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Salinas MV, Hamet MF, Binaghi J, Abraham AG, Weisstaub A, Zuleta A, Ronayne de Ferrer P, Puppo MC. Calcium-inulin wheat bread: prebiotic effect and bone mineralisation in growing rats. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13531] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- María V. Salinas
- CIDCA (CIC - CONICET - Facultad de Ciencias Exactas-Universidad Nacional de La Plata); 47 y 116 1900 La Plata Argentina
| | - María Fernanda Hamet
- CIDCA (CIC - CONICET - Facultad de Ciencias Exactas-Universidad Nacional de La Plata); 47 y 116 1900 La Plata Argentina
| | - Julieta Binaghi
- Facultad de Farmacia y Bioquímica-Universidad de Buenos Aires; Junín 956 1113 Ciudad de Buenos Aires Argentina
| | - Analia G. Abraham
- CIDCA (CIC - CONICET - Facultad de Ciencias Exactas-Universidad Nacional de La Plata); 47 y 116 1900 La Plata Argentina
| | - Adriana Weisstaub
- Facultad de Farmacia y Bioquímica-Universidad de Buenos Aires; Junín 956 1113 Ciudad de Buenos Aires Argentina
| | - Angela Zuleta
- Facultad de Farmacia y Bioquímica-Universidad de Buenos Aires; Junín 956 1113 Ciudad de Buenos Aires Argentina
| | - Patricia Ronayne de Ferrer
- Facultad de Farmacia y Bioquímica-Universidad de Buenos Aires; Junín 956 1113 Ciudad de Buenos Aires Argentina
| | - María C. Puppo
- CIDCA (CIC - CONICET - Facultad de Ciencias Exactas-Universidad Nacional de La Plata); 47 y 116 1900 La Plata Argentina
- Facultad de Ciencias Agrarias y Forestales-Universidad Nacional de La Plata; 60 y 119 1900 La Plata Argentina
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Abstract
The purpose of this paper was to study the kinetics of calcium uptake of blanched and not blanched apple tissue during impregnation treatments under vacuum or/and at atmospheric pressure. The relative absorption of calcium in rats, regarding calcium carbonate as reference substance, was also analyzed as a first approach. Apple impregnation is conducted (with and without previous blanching in saturated vapor) in isotonic glucose aqueous solutions containing calcium gluconate and lactate. A 50 mm Hg vacuum pressure is applied for a time t1 (0—180 min) or atmospheric pressure is used for a process time t2 (0—7.5 h). Calcium uptake by apple tissue is influenced by system pressure, blanching, and impregnation time, reaching 500—4600 μg Ca/g according to process variables. Preliminary data of true calcium absorption ranges between 74 and 86% regarding calcium carbonate.
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Affiliation(s)
- D.M. Salvatori
- Departamento de Química, Facultad de Ingeniería, Universidad Nacional del Comahue Buenos Aires 1400, (8300) Neuquén, Argentina, Member of Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina
| | - M. González-Fesler
- Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Ciudad Universitaria, 1428 Ciudad Autónoma de Buenos Aires, Argentina
| | - A. Weisstaub
- Cátedra de Nutrición, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires Junín 956, 1113 Ciudad Autónoma de Buenos Aires, Argentina
| | - M.L. Portela
- Cátedra de Nutrición, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires Junín 956, 1113 Ciudad Autónoma de Buenos Aires, Argentina
| | - S.M. Alzamora
- Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Ciudad Universitaria, 1428 Ciudad Autónoma de Buenos Aires, Argentina, Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina,
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Poy MS, Weisstaub A, Iglesias C, Fernández S, Portela ML, López LB. [Pica diagnosis during pregnancy and micronutrient dificiency in Argentine women]. NUTR HOSP 2013; 27:922-8. [PMID: 23114955 DOI: 10.3305/nh.2012.27.3.5598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Accepted: 02/05/2012] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE To evaluate by biochemical parameters iron and zinc nutritional status in women with and without pica diagnosis during pregnancy. METHODOLOGY During puerperium 109 women were evaluated at Fiorito Hospital, Argentina. Pica diagnosis was made in 42 women while 67 did not refer the practice. Fasting blood samples were obtained and analyzed in a hematology analyzer for values of red blood cells, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and hematocrit. Serum zinc and erythrocyte zinc was analyzed by atomic absorption spectrophotometry. RESULTS Substances consumed during pica practice were: earth, ice, brick, paper, desinfectant and dog food. Women with pica diagnosis had higher a rate of family history of pica and personal antecedents of pica in childhood (OR: 15.9). Sociodemographic and anthropometric characteristics and neonatal birth weight were similar between both groups, although women with pica diagnosis had lower values in mean corpuscular volume (p = 0,008), mean corpuscular hemoglobin (p = 0,009) and erythrocyte zinc (0,008). Applying a logistic regression model, erythrocyte zinc was the only biochemical indicator associated with pica practice (p = 0,028). CONCLUSIONS At puerperium, women with pica during pregnancy could have lower levels in biochemical parameters for iron and zinc status so we suggest that early diagnosis of pica could help to identify micronutrient deficient.
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Affiliation(s)
- M S Poy
- Escuela de Nutrición, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
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Zago L, Weisstaub A, Carmen Masselli M, Ortiz V, Felipoff AL, Dupraz H, Perdomo C, Rio ME, Presner N, Rivera S, Infantino CG. HbA1c levels in non‐diabetic overweight (OW) and obese (O) subjects. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1067.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Liliana Zago
- Facultad de Farmacia y BioquímicaUBABuenos AiresArgentina
| | | | | | | | | | - Hernán Dupraz
- Facultad de Farmacia y BioquímicaUBABuenos AiresArgentina
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Marotte C, Weisstaub A, Bryk G, Olguin MC, Posadas M, Lucero D, Schreier L, Pita Martín de Portela ML, Zeni SN. Effect of dietary calcium (Ca) on body composition and Ca metabolism during growth in genetically obese (β) male rats. Eur J Nutr 2012; 52:297-305. [PMID: 22457075 DOI: 10.1007/s00394-012-0336-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 02/23/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Obese β rats may be a suitable model to evaluate the association between calcium intake (CaI) and obesity during growth. OBJECTIVE The present study comparatively evaluated Ca absorption and retention, and changes in body composition in spontaneously genetically obese (β) male rats fed three different dietary Ca levels: high 0.9% (HCa); normal: 0.5% (NCa); low: 0.2% (LCa). METHODS Pregnant rats were fed isocaloric diets which varied in Ca content only. Male pups continued feeding the same maternal diet until postnatal day 60. The percentage of Apparent Ca absorption (CaA %), Ca balance (CaB), body composition, glucose, triglycerides (TGL), and insulin levels were evaluated. RESULTS Food consumption and body weight (BW) were higher in Group LCa than in Groups NCa and HCa (p < 0.01); no differences were observed between the latter two groups. Group LCa presented the highest body fat, liver weight, perigonadal and retroperitoneal fat (p < 0.05); conversely, body ashes and total skeleton bone mineral content were significantly lower compared with animals in both the NCa (p < 0.01) and HCa groups (p < 0.01). CaB (mg/day) reached a plateau at the highest CaI (mg/day) value (r = 0.985, p < 0.001). CaA%, serum glucose, insulin, and TGL levels rose as CaI decreased (p < 0.01). CONCLUSIONS Although further studies are required, low Ca consumption in this strain of rats could modulate BW inducing changes in several lipid metabolism parameters, which in turn lead to an increase in body fat.
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Affiliation(s)
- Clarisa Marotte
- National Council for Scientific and Technologic Research, (CONICET), Buenos Aires, Argentina
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Menéndez AM, De Portela ML, Weisstaub A, Montemerlo H, Guidoni ME, Rusí F, Zeni S. [Influence of zinc administered by total parenteral nutrition on plasmatic zinc levels, on reactive C protein, on serum interleukin-6 and on serum interleukin-6 soluble receptor, in critical patients]. NUTR HOSP 2009; 24:340-346. [PMID: 19721908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Accepted: 03/12/2009] [Indexed: 05/28/2023] Open
Abstract
OBJECTIVES To study the interrelationship between serum Interleukin-6 (IL-6), serum Interleukin-6 soluble Receptor (IL-6 sR), C-Reactive Protein (C-RP), plasmatic Zinc levels (PlZn) and their response in relation to Zn administered by TPN, in critical patients. METHODS 17 patients, receiving TPN as a consequence of acute pancreatitis (n = 4) or after a major abdominal surgery due to intestinal cancer (n = 7), intestinal fístula (n = 3), intestinal obstruction (n = 2) or intestinal íleus (n = 1) were studied. At the beginning (To) and at the end of the TPN administration (6-21 days) serum IL-6 and IL-6 sR were determined by ELISA; C-RP ultrasensitive (C-RP us) by inmunoturbidimetric method; Zn was determined in TPN and in plasma by Atomic Absorption Spectrometry. Characteristics of the patients were (mean +/- SD and ranges): age: 60.6 +/- 11.7 (37-77) years; BMI (kg/m(2)): 26.0 +/- 3.4 (19.9-34.0). RESULTS The results (mean +/- standard deviation and ranges) were: Zn provided by TPN (mg/d): 6.1 +/- 2.0 (range 2.8 to 10.8). Biochemical levels were, at To and Tf, respectively: (mean+/-SD and ranges) were at To y Tf, respectively: Zn Pl (microg/dl): 104 +/- 46 (35-177); 120 +/- 55 (52-229); IL-6 (pg/mL) 93 +/- 74 (10-262); 117 +/- 180 (7-761); IL6sR (pg/mL): 1,012 +/- 322 (589-1855); 1,269 +/- 451 (631-2195); C-RP us (mg/L): 71 +/- 63 (2-196); 65 +/- 43 (0-137). There was no correlation between variations of IL6, IL6sR, C-RP, PlZn levels and the daily amount of Zn administered in the TPN mixtures. Two patients presented a bad evolution; they received 4.2 and 5.2 md/d of Zn and showed an increase of IL6 levels, maintained high levels of IL6sR but C-RP levels decreased. CONCLUSIONS the range of 2.8 to 10.8 mg/d of Zn administered in TPN mixtures did not exacerbate the inflammatory response.
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Affiliation(s)
- A M Menéndez
- Instituto Argentino de Educación e Investigación en Nutrición, Buenos Aires, Argentina
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Menéndez AM, Weisstaub A, Montemerlo H, Alloatti S, Guidoni ME, Rusi F, Portela MLD. [Relationship between the amount of copper and zinc given to critically ill patients on total parenteral nutrition and plasma and erythrocyte copper and zinc levels]. NUTR HOSP 2008; 23:373-382. [PMID: 18604324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2007] [Accepted: 10/02/2007] [Indexed: 05/26/2023] Open
Abstract
OBJECTIVES Complications resulting from zinc and copper deficiency, or adverse effects from excessive zinc and copper intake should be avoided during total parenteral nutrition (TPN). This study was conducted on critically ill patients requiring TPN to determine the relationship between the zinc and copper levels of the TPN mixtures, patients' clinical progression, and changes in plasma levels of zinc, serum levels of copper, and erythrocyte levels of zinc and copper. PATIENTS AND METHODS 29 adult critically ill patients following pancreatitis or after a major abdominal surgery were studied. Zinc and copper levels in TPN, plasmatic zinc levels, copper serum levels and erythrocyte levels of zinc and copper were determined at the onset and at the end of the treatment (5-21 days) (using Atomic Absorption Spectrometry). RESULTS The mean+/-standard deviation (and ranges in parenthesis) of zinc and copper levels in TPN were (microg/mL): zinc: 4.2+/-1.7 (1.8 a 9.3); copper: 0.94+/-0.66 (0.1 a 3.1). Biochemical parameters at the onset and at the end of the treatment were, respectively: (microg/mL): plasmatic zinc: 80+/-45 (29-205) and 122+/-56 (37-229); erythrocyte zinc: 2,300+/-1,070 (790-5,280) and 2,160+/-920 (790-4,440); serum copper (microg/dL): 124+/-35 (62-211) and 128+/-41 (60- 238); erythrocyte copper (microg/dl): 72+/-39 (4-183) and 70+/-41 (9-156). Plasmatic and erythrocyte zinc levels did not correlated neither at the onset nor at the end of the treatment. Changes in erythrocyte zinc levels correlated with daily administered zinc (mg/d) in the parenteral nutrition (r=0.38). Serum copper and erythrocyte copper showed significant correlation at the onset (p=0.0005) and at the end of treatment (p=0.008). Changes of serum or erythrocyte copper levels showed a significant correlation with daily administered copper (r=0.31 and 0.26, respectively). CONCLUSIONS These results show that: 1) determination of erythrocyte zinc and copper levels in these critically ill patients would help to control zinc and copper administration levels in TPN and avoid adverse effects; 2) TPN Zn levels should be less than 8.1 mg/d, and 3) TPN Cu levels higher than 1.2 mg/d would not be recommended.
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Affiliation(s)
- A M Menéndez
- Instituto Argentino de Educación e Investigación en Nutrición, Buenos Aires, Argentina
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13
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Zeni S, Weisstaub A, Di Gregorio S, Ronanre De Ferrer P, Portela MLD. Bone mass changes in vivo during the entire reproductive cycle in rats feeding different dietary calcium and calcium/phosphorus ratio content. Calcif Tissue Int 2003; 73:594-600. [PMID: 14517709 DOI: 10.1007/s00223-002-1093-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2002] [Accepted: 05/21/2003] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to quantify in vivo the impact of different dietary Ca contents on the maternal total skeleton and skeletal sub-areas in adult rats during pregnancy and lactation, using DXA. Twenty-four female Wistar rats (approximately 5 months old) were mated and divided into three groups (n = 8) and fed one of the following diets, varying only in Ca content (LCD: 0.14%, NCD: 0.6% or HCD: 1.2%). Pups were adjusted to 8-9 per dam. Maternal ionic calcium and in vivo bone mineral density (BMD) were measured at the beginning, after delivery and after weaning. Regardless of the diet, ionized calcium decreased from onset to weaning ( P < 0.05). At weaning, bone mass decreased 7.3% in NCD, 15% in LCD and 10.5% in HCD from initial values. Total skeleton, whole and proximal tibia and spine BMDs only decreased at delivery in the LCD group ( P < 0.05) but, irrespective of the diet, at weaning, they were lower compared to delivery and initial values ( P < 0.05). LCD group presented the lowest BMD in the proximal tibia and spine regions ( P < 0.05). At birth, pups did not present differences, however, at weaning, LCD pups reached the lowest body weight ( P < 0.05), NCD presented the highest body Ca content ( P < 0.05) and there were no differences between LCD and HCD. This in vivo study showed that regardless of the dietary calcium content, the maternal skeleton is slightly affected by pregnancy but severely affected by lactation. However, the degree of such response appears to depend not only on dietary Ca content but also on dietary Ca/P molar ratio.
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Affiliation(s)
- S Zeni
- Sección Osteopatías Médicas del Hospital de Clínicas "J. de San Martín", Facultad de Medicina, Universidad de Buenos Aires, Argentina.
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Weisstaub A, Zeni S, de Ferrer P, de Portela ML. [Effect of dietary calcium during pregnancy and lactation on zinc levels in blood and bone, in rats]. Arch Latinoam Nutr 2003; 53:178-83. [PMID: 14528608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
The effect of dietary calcium (Ca) level on maternal zinc (Zn) nutritional status was studied. Female Wistar rats, weighing 250-350 g, were fed during pregnancy and lactation with an experimental diet containing/100 g different levels of calcium: 0.2 g (low calcium: LCa), 0.6 g (normal calcium: NCa) or 0.9 (high calcium: HCa). Maternal blood samples were drawn from the tail at delivery and at the end of lactation. Laboratory determinations were: Zn in whole blood (WB) at delivery and weaning; Zn (ZnF) and Ca (CaF) in the ashed femur at weaning. The results (mean +/- SEM) were: ZnWB (microgram/ml) at delivery and weaning: LCa: 8.73 +/- 1.05; 12.8 +/- 2.02; NCa: 3.49 +/- 0.19; 3.73 +/- 0.37; HCa: 3.21 +/- 0.19; 3.85 +/- 0.27. CaF (mg/100 mg): LCa: 19.2 +/- 0.8; NCa: 21.4 +/- 0.6; HCa: 20.4 +/- 1.1. ZnF (microgram/100 mg): LCa: 30.2 +/- 0.9; NCa: 24.1 +/- 0.3; HCa: 24.1 +/- 0.9. ZnWB was significantly higher in LCa (p < 0.0001) regarding NCa and Hca. ZnF showed an increase and CaF a decrease in LCa regarding NCa and HCa (p < 0.0001). There were no significant differences in ZnWB, ZnF and CaF between NCa and HCa These results show that: there was no detrimental effect when dietary Ca content was increased by 50% above the normal requirements of the rat.; low dietary Ca during pregnancy and lactation produced an increase of Zn utilization, reflected in maternal blood Zn and in ZnF content.
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Affiliation(s)
- Adriana Weisstaub
- Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Hospital de Clínicas, Universidad de Buenos Aires, Buenos Aires, Argentina
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Weisstaub A, de Ferrer PR, Zeni S, de Portela ML. Influence of low dietary calcium during pregnancy and lactation on zinc levels in maternal blood and bone in rats. J Trace Elem Med Biol 2003; 17:27-32. [PMID: 12755498 DOI: 10.1016/s0946-672x(03)80042-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The effect of low dietary calcium on maternal zinc nutritional status was studied. Two groups of 6 adult female Wistar rats were fed during pregnancy and lactation with experimental diets containing either 0.2 g (LCa) or 0.6 g (NCa) of calcium/100 g. Both diets contained/100 g: 20.0 g protein (potassium caseinate), 3.5 mg Zn, 0.6 g P. A third group (n = 6) was fed a "stock diet" (SG), containing/100 g: 24.8 g protein, 1.5 g Ca, 0.6 g P, 11.6 mg Zn. Maternal blood samples were drawn from the tail before mating (To), at delivery (D) and at weaning (W); dams were sacrificed at weaning and the right femur was excised. Determinations (atomic absorption spectrometry) were: Zinc in red blood cells (RBC), Zn and Ca in ashed femur. The results (mean +/- SD) were: RBCZn (microg/mL) at To: 8.65 +/- 1.80, which did not change in the SG or in the NCa groups, but increased significantly in the LCa group (p < 0.001) (D: 18.20 +/- 4.63; W: 26.70 +/- 6.02), regarding To. Femur Zn (microg/100 mg) showed an increase (p < 0.001) in the LCa group (30.2 +/- 2.1) regarding both SG (25.3 +/- 0.7) and NCa groups (24.1 +/- 0.7). Femur Ca (mg/100 mg) decreased (p < 0.05) in the LCa group (19.2 +/- 0.9) regarding both SG (24.0 +/- 0.5) and NCa groups (21.4 +/- 0.7) and leading to a significant increase in Zn/Ca ratio (p < 0.001) in the LCa group. Therefore, dietary calcium deficiency during pregnancy and lactation would produce an increase of Zn utilization, reflected in the increase of maternal blood Zn levels and in femur Zn content.
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Affiliation(s)
- Adriana Weisstaub
- Cátedras de Bromatología y Nutrición, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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Rebagliati I, Raices M, Ricci C, Weisstaub A, Hagmüller K, Zaninovich AA. Effects of zinc on brown fat thermal response to cold in normal and triiodothyronine-treated hypothyroid rats. Bull Environ Contam Toxicol 2001; 67:641-648. [PMID: 11911632 DOI: 10.1007/s001280172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- I Rebagliati
- Hospital de Clínicas and INGEBI, CONICET and University of Buenos Aires, Argentina
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Ronayne de Ferrer PA, Weisstaub A, López N, Ceriani Cernadas JM. [Zinc levels in term and preterm milk]. Arch Latinoam Nutr 2001; 51:33-6. [PMID: 11515230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Zinc is an essential element, important for early growth and development, and immune competence, which deficiency might be especially critical in preterm infants. Since published data have shown that some preterm milks have abnormally low zinc values, we decided to measure zinc levels in term and preterm milk, in order to assess if they were within normal values and if there were differences between both groups. Samples from 24 preterm and 20 term mothers (mean gestational age, 30.9 + 0.5 and 39.5 + 0.2 weeks, respectively) were collected and kept at -20 degrees C until analyzed by atomic absorption spectrophotometry, prior wet ashing with nitric acid. Both term and preterm milk showed zinc values within normal levels. No significant differences were registered between them. A decreasing trend was observed along time, which was significant between colostrum and mature milk samples (ANOVA, p < 0.05). In the term group, zinc concentrations in colostrum and mature milk (microgram/mL) (mean +/- SEM) varied between 6.96 +/- 0.69 y 2.44 +/- 0.11, while in the preterm group the values were 6.20 +/- 0.89 y 2.28 +/- 0.54. According to our results, zinc values in human milk were comparable between preterm and term mothers.
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Zago LB, Dupraz H, Weisstaub A, Godoy MF, Slobodianik NH, Gasali F, Dirube C, Torino F, Río ME. Indices of protein status as predictors of complications in low risk surgical patients of hernias and lithiasis. Nutr Res 2000. [DOI: 10.1016/s0271-5317(99)00153-0] [Citation(s) in RCA: 4] [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: 12/25/2022]
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Zago L, Weisstaub A, Dupraz H, Godoy MF, Gasali F, Dirube C, Slobodianik NH, de Portela ML, Torino F, Río ME. [Nutritional status of surgical patients without apparent nutritional compromise]. Arch Latinoam Nutr 1999; 49:1-7. [PMID: 10412498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Nutritional status of 80 preoperative patients from programmed surgeries of hernias and lithiasis was studied by anthropometric and biochemical parameters. Nutritional deficiencies related to pathology were not expected in these patients. Results were as follows: 77% of the population showed overweight, being 15% obese. Prevalent protein intake, evaluated by the urea nitrogen/creatinine ratio, was adequate in 87.5% of the patients; however, patients presented 72% of albumin, 52% of prealbumin and 50% of RBP below reference values. Transferrin, ceruloplasmin, alpha 2-macroglobulin and haptoglobin were not decreased. Assessment of vitamin A, carotenes and vitamin C showed plasmatic levels below reference values in 16% of the patients for vitamin A, 5% for carotenes and 27% for vitamin C. Respect to calcium status, data of calcium/creatinine ratio show deficiency in 45% of the population. Respect to iron, the nutritional status was in general adequate, patients at risk being 5% by Htc, 11% by Hb, 5% by TS% and 12.5% by FEP, women showed over twice abnormal values than men. Although some isolated relations were observed, in this population sex, age and pathology were variable that did not affect in a relevant way the nutritional status. In spite of the individual analysis of each nutrient did not show important deficiencies, the analysis by patient showed that only a few of them (7%) presented an optimal biochemical profile with all the studied parameters within the reference values.
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Affiliation(s)
- L Zago
- Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Argentina
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