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  1. Article ; Online: Urinary excretion of calcium, phosphate, magnesium, and uric acid in healthy infants and young children. Influence of feeding practices in early infancy.

    Peris Vidal, Amelia / Ferrando Monleón, Susana / Marín Serra, Juan / Quiñones-Torrelo, Carmen / Hervás Andrés, Aurelio / Fons Moreno, Jaime / Hernández Marco, Roberto

    Pediatric nephrology (Berlin, Germany)

    2023  Volume 39, Issue 3, Page(s) 761–770

    Abstract: Background: Reference values for urinary calcium (Ca) and other solutes/creatinine (Cr) ratios in infants and young children are scarce. Its variation with type of lactation administered, breastfed (BF) or formula (F), is incompletely known.: Methods!# ...

    Abstract Background: Reference values for urinary calcium (Ca) and other solutes/creatinine (Cr) ratios in infants and young children are scarce. Its variation with type of lactation administered, breastfed (BF) or formula (F), is incompletely known.
    Methods: A total of 511 spot urine samples from 136 children, aged 6 days to < 5 years, was collected. Urine was collected no fasting in infants < 18 months and first morning fasting in children aged 2.5-4 years. Urinary osmolality, Cr, urea, Ca, phosphate (P), magnesium (Mg), and uric acid (UA) were determined. Values are expressed as solute-to-Cr ratio.
    Results: Urinary values were grouped according to the child's age: 6-17 days (G1), 1-5 months (G2), 6-12 months (G3), 13-18 months (G4), and 2.5-4 years (G5). G1 was excluded; Ca/Cr and UA/Cr (95th percentile) decreased with age (G2 vs. G5) from 1.64 to 0.39 and 2.33 to 0.83 mg/mg, respectively. The P/Cr median rises significantly with age from 0.31 (G2) to 1.66 mg/mg (G5). Mg/Cr was similar in all groups (median 0.20, 95th percentile 0.37 mg/mg). Ca/Cr (95th percentile) of BF infants was 1.80 mg/mg (< 3 months) and 1.63 mg/mg (3-5 months), much higher than F infants (0.93 and 0.90 mg/mg, respectively). P/Cr and P/Ca were lower in BF infants.
    Conclusions: Values for urinary Ca/Cr, P/Cr, Mg/Cr, and UA/Cr in infants and children < 5 years were updated. BF infants < 6 months showed higher Ca/Cr and lower P/Cr than F infants. New cutoff values to diagnose hypercalciuria in infants < 6 months, according to the type of lactation, are proposed.
    MeSH term(s) Child ; Infant ; Female ; Humans ; Child, Preschool ; Infant, Newborn ; Calcium/urine ; Magnesium ; Phosphates/urine ; Uric Acid/urine ; Calcium, Dietary ; Creatinine/urine ; Reference Values
    Chemical Substances Calcium (SY7Q814VUP) ; Magnesium (I38ZP9992A) ; Phosphates ; Uric Acid (268B43MJ25) ; Calcium, Dietary ; Creatinine (AYI8EX34EU)
    Language English
    Publishing date 2023-09-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-023-06145-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Community-acquired febrile urinary tract infection caused by extended-spectrum beta-lactamase-producing bacteria in hospitalised infants

    Hernández Marco, Roberto / Guillén Olmos, Elena / Bretón-Martínez, José Rafael / Giner Pérez, Lourdes / Casado Sánchez, Benedicta / Fujkova, Julia / Salamanca Campos, Marina / Nogueira Coito, José Miguel

    Enfermedades infecciosas y microbiologia clinica (English ed.). 2016,

    2016  

    Abstract: Extended-spectrum beta-lactamase (ESBL) producing bacteria are infrequent pathogens of urinary tract infections in children. The objective of our study was to investigate the presence, clinically associated characteristics and risk factors for ... ...

    Abstract Extended-spectrum beta-lactamase (ESBL) producing bacteria are infrequent pathogens of urinary tract infections in children. The objective of our study was to investigate the presence, clinically associated characteristics and risk factors for acquisition of urinary tract infection/acute pyelonephritis (UTI/APN) in hospitalised children <2years old caused by community-acquired ESBL.A case-control study in a second level community hospital in Spain, in which 537 episodes of UTI/APN were investigated in a retrospective study between November 2005 and August 2014. Cases were patients with ESBL strains. For each case, four ESBL-negative controls were selected. A questionnaire with the variables of interest was completed for every patient, and the groups were compared.ESBL-positive strains were found in 19 (3.5%) cultures. Of these 16 (84%) were Escherichia coli. Vesicoureteral reflux (VUR) of any grade was more frequent in the ESBL group (60 vs. 29%), although without statistical significance. Relapses were more frequent in the ESBL group (42% vs. 18%) (p=0.029; OR=3.2; 95%CI: 1.09-9.5). The prevalence of UTI/APN due to ESBL-positive strains increased slightly from 2.7% in the period 2005-2009 to 4.4% in the period 2010-2014.ESBL UTI/APN were associated with more frequent relapses. VUR of any grade was twice more frequent in the ESBL group. Piperacillin/tazobactam, fosfomycin and meropenem showed an excellent activity. Aminoglycosides may be a therapeutic option, and in our patients gentamicin was the antibiotic most used.
    Keywords Extended-spectrum beta-lactamases-producing bacteria ; Urinary tract infection ; Community-acquired infection ; Risk factors ; Infants ; Betalactamasas de espectro extendido ; Infección urinaria ; Infección adquirida en la comunidad ; Factores de riesgo ; Niños
    Language English
    Publishing place Elsevier España, S.L.U.
    Document type Article ; Online
    Note Pre-press version
    ISSN 2529-993X
    DOI 10.1016/j.eimce.2017.03.008
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Community-acquired febrile urinary tract infection caused by extended-spectrum beta-lactamase-producing bacteria in hospitalised infants.

    Hernández Marco, Roberto / Guillén Olmos, Elena / Bretón-Martínez, José Rafael / Giner Pérez, Lourdes / Casado Sánchez, Benedicta / Fujkova, Julia / Salamanca Campos, Marina / Nogueira Coito, José Miguel

    Enfermedades infecciosas y microbiologia clinica

    2017  Volume 35, Issue 5, Page(s) 287–292

    Abstract: Introduction: Extended-spectrum beta-lactamase (ESBL) producing bacteria are infrequent pathogens of urinary tract infections in children. The objective of our study was to investigate the presence, clinically associated characteristics and risk factors ...

    Title translation Infección urinaria febril adquirida en la comunidad por bacterias productoras de betalactamasas de espectro extendido en niños hospitalizados.
    Abstract Introduction: Extended-spectrum beta-lactamase (ESBL) producing bacteria are infrequent pathogens of urinary tract infections in children. The objective of our study was to investigate the presence, clinically associated characteristics and risk factors for acquisition of urinary tract infection/acute pyelonephritis (UTI/APN) in hospitalised children <2years old caused by community-acquired ESBL.
    Methods: A case-control study in a second level community hospital in Spain, in which 537 episodes of UTI/APN were investigated in a retrospective study between November 2005 and August 2014. Cases were patients with ESBL strains. For each case, four ESBL-negative controls were selected. A questionnaire with the variables of interest was completed for every patient, and the groups were compared.
    Results: ESBL-positive strains were found in 19 (3,5%) cultures. Of these 16 (84%) were Escherichia coli. Vesicoureteral reflux (VUR) of any grade was more frequent in the ESBL group (60 vs. 29%), although without statistical significance. Relapses were more frequent in the ESBL group (42% vs. 18%) (P=.029; OR=3.2; 95%CI: 1.09-9.5). The prevalence of UTI/APN due to ESBL-positive strains increased slightly from 2.7% in the period 2005-2009 to 4.4% in the period 2010-2014.
    Conclusions: ESBL UTI/APN were associated with more frequent relapses. VUR of any grade was twice more frequent in the ESBL group. Piperacillin/tazobactam, fosfomycin and meropenem showed an excellent activity. Aminoglycosides may be a therapeutic option, and in our patients gentamicin was the antibiotic most used.
    Language Spanish
    Publishing date 2017-05
    Publishing country Spain
    Document type Journal Article
    ZDB-ID 1070941-1
    ISSN 1578-1852 ; 0213-005X
    ISSN (online) 1578-1852
    ISSN 0213-005X
    DOI 10.1016/j.eimc.2016.01.012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Oxidant/antioxidant status and hyperfiltration in young patients with type 1 diabetes mellitus.

    Hernández-Marco, Roberto / Codoñer-Franch, Pilar / Pons Morales, Sara / Del Castillo Villaescusa, Cristina / Boix García, Laura / Valls Bellés, Victoria

    Pediatric nephrology (Berlin, Germany)

    2008  Volume 24, Issue 1, Page(s) 121–127

    Abstract: Diabetic nephropathy (DN), a major cause of morbidity and mortality in diabetes, will develop within a subset of type 1 diabetes mellitus (T1DM) patients, and oxidative stress has been implicated in its pathogenesis. To investigate the relationship ... ...

    Abstract Diabetic nephropathy (DN), a major cause of morbidity and mortality in diabetes, will develop within a subset of type 1 diabetes mellitus (T1DM) patients, and oxidative stress has been implicated in its pathogenesis. To investigate the relationship between indicators of early DN stages (hyperfiltration estimated by creatinine clearance > or =150 ml/min per 1.73 m(2), microalbuminuria) and oxidative stress, a prospective study was conducted in 29 T1DM patients (age 13.89 +/- 4.61 years) and 18 control subjects (age 13.23 +/- 3.99 years). Blood samples were collected to assay for biomarkers of oxidative stress (malondialdehyde and carbonyl groups) and antioxidants (glutathione peroxidase, reduced glutathione, alpha-tocopherol, and beta-carotene). With respect to control subjects, in T1DM patients, an increase was found in biomarkers of oxidative stress (p < 0.05), mainly due to the group of subjects with hyperfiltration, and a decrease in the ratio alpha-tocopherol/lipids (p < 0.05). In multiple regression analyses, age at disease onset, glycated hemoglobin, microalbuminuria, and oxidative stress biomarkers remained as explicative variables of hyperfiltration (R (2) adjusted = 0.731, p = 0.000). These findings support the importance of the oxidative damage to lipids and proteins, which is linked to hyperfiltration and which could contribute to the development of DN in patients with T1DM.
    MeSH term(s) Adolescent ; Age of Onset ; Albuminuria/metabolism ; Antioxidants/metabolism ; Biomarkers/metabolism ; Child ; Child, Preschool ; Creatinine/urine ; Diabetes Mellitus, Type 1/complications ; Diabetes Mellitus, Type 1/metabolism ; Diabetes Mellitus, Type 1/physiopathology ; Diabetic Nephropathies/etiology ; Diabetic Nephropathies/metabolism ; Diabetic Nephropathies/physiopathology ; Female ; Glomerular Filtration Rate ; Glutathione/blood ; Glutathione Peroxidase/blood ; Humans ; Male ; Malondialdehyde/blood ; Oxidants/blood ; Oxidative Stress/physiology ; Prospective Studies ; Young Adult ; alpha-Tocopherol/blood ; beta Carotene/blood
    Chemical Substances Antioxidants ; Biomarkers ; Oxidants ; beta Carotene (01YAE03M7J) ; Malondialdehyde (4Y8F71G49Q) ; Creatinine (AYI8EX34EU) ; Glutathione Peroxidase (EC 1.11.1.9) ; Glutathione (GAN16C9B8O) ; alpha-Tocopherol (H4N855PNZ1)
    Language English
    Publishing date 2008-09-10
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 631932-4
    ISSN 1432-198X ; 0931-041X
    ISSN (online) 1432-198X
    ISSN 0931-041X
    DOI 10.1007/s00467-008-0961-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Nosocomial rotavirus gastroenteritis in Spain: a multicenter prospective study.

    Gutiérrez-Gimeno, M Victoria / Martin-Moreno, Jose M / Díez-Domingo, Javier / Asensi-Botet, Francesc / Hernández-Marco, Roberto / Correcher-Medina, Patricia / Sánchez-Fauquier, Alicia

    The Pediatric infectious disease journal

    2010  Volume 29, Issue 1, Page(s) 23–27

    Abstract: Background: The objective of this study was to assess the incidence of nosocomial rotavirus gastroenteritis among children <2 years of age.: Methods: We conducted a prospective active surveillance for acute gastroenteritis (AGE) in the pediatric ... ...

    Abstract Background: The objective of this study was to assess the incidence of nosocomial rotavirus gastroenteritis among children <2 years of age.
    Methods: We conducted a prospective active surveillance for acute gastroenteritis (AGE) in the pediatric wards of 3 representative hospitals in Valencia (Spain) from October 2006 to March 2007, among children between 1 and 23 months of age with acute diarrhea. Children were followed up for 3 days after discharge. We obtained clinical and demographic information from participants and tested their stool specimens for rotavirus.
    Results: A total of 1576 children were hospitalized at the 3 hospitals and 1300 (82.5%) were followed up as the study cohort. In 69 children, AGE started 48 hours after admission and were considered nosocomial infections. In 35 of the 59 cases where stool samples were obtained, rotavirus (RV) was present (59%), and in 12 of them symptoms started after discharge. The accumulated incidence of nosocomial rotavirus disease during the study period was 2.8 cases per 100 inpatients (95% CI: 1.9-3.8), and the incidence rate was 4.8 cases per 1000 hospital days (95% CI: 3.2-6.5). The most commonly found genotype in nosocomial infection was G9P[8], in 23 cases (66%), followed by G1P[8] in 4 cases (11%). The total economic cost was 883 euro per case.
    Conclusion: Active surveillance demonstrated that the burden of nosocomial rotavirus disease is substantial, and G9P [8] was the genotype found most frequently. Following up children after discharge from hospital allowed the discovery of cases of nosocomial RVAGE which are missed in most other studies.
    MeSH term(s) Animals ; Cross Infection/epidemiology ; Cross Infection/virology ; Diarrhea/epidemiology ; Diarrhea/virology ; Feces/virology ; Female ; Gastroenteritis/epidemiology ; Gastroenteritis/virology ; Genotype ; Humans ; Incidence ; Infant ; Male ; Prospective Studies ; Rotavirus/classification ; Rotavirus/genetics ; Rotavirus/isolation & purification ; Rotavirus Infections/epidemiology ; Spain/epidemiology
    Language English
    Publishing date 2010-01
    Publishing country United States
    Document type Journal Article ; Multicenter Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 392481-6
    ISSN 1532-0987 ; 0891-3668
    ISSN (online) 1532-0987
    ISSN 0891-3668
    DOI 10.1097/INF.0b013e3181b3603a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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