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Expression of anatomical leaf traits in homoploid hybrids between deciduous and evergreen species of Vaccinium. PLANT BIOLOGY (STUTTGART, GERMANY) 2013; 15:522-530. [PMID: 22823251 DOI: 10.1111/j.1438-8677.2012.00656.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We investigated the anatomical expression of leaf traits in hybrids between evergreen Vaccinium vitis-idaea and deciduous V. myrtillus. We compared parents from four populations with their respective F1 hybrids and tested whether (i) transgression can be the source of novel anatomical traits in hybrids; (ii) expression of transgressive traits is more probable for traits with similar values in parents and intermediate for more distinct values, as predicted by theory; and (iii) independent origin of hybrids leads to identical trait expression profiles among populations. We found that anatomical leaf traits can be divided into four categories based on their similarity to parents: intermediate, parental-like, transgressive and non-significant. Contrary to the common view, parental-like trait values were equally important in shaping the hybrid profile, as were intermediate traits. Transgression was revealed in 17/144 cases and concerned mainly cell and tissue sizes. As predicted by theory, we observed transgressive segregation more often when there was little phenotypic divergence, but intermediate values when parental traits were differentiated. It is likely that cell and tissue sizes are phylogenetically more conserved due to stabilising selection, whereas traits such as leaf thickness and volume fraction of the intercellular spaces, showing a consistent intermediate pattern across populations, are more susceptible to directional selection. Hybrid populations showed little similarity in expression profile, with only three traits identically expressed across all populations. Thus local adaptation of parental species and specific genetic background may be of importance.
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Prediction of carcass composition, ham and foreleg weights, and lean meat yields of Iberian pigs using ultrasound measurements in live animals. J Anim Sci 2013; 91:1884-92. [PMID: 23408817 DOI: 10.2527/jas.2012-5357] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The most valuable lean cuts from Iberian pigs are the hams, forelegs, and loins, which yield high quality cured meat products. This study aimed to assess the correlation between body composition measurements taken in vivo by ultrasonography in Iberian pigs and those taken on the carcass, which were then used to develop predictive models to estimate the weight and yield of these cuts. Before slaughter, 241 Iberian pigs were weighed (slaughter BW) and ultrasonically scanned. Ultrasound images were collected at 3 locations: the 10th intercostal space, caudal to the last rib to image the loin muscle, and the rear gluteal region [ultrasound gluteal backfat (u-GBF)]. After slaughter, the weight of the carcass (CW), ham (HW), foreleg (FW), and loin (LW) were determined, and the sum of these lean cuts weights (CLPW) and the corresponding yields were calculated. A portion of loin with the associated bones, backfat, and skin was obtained by cutting the carcass between the 10th and last ribs and was used to measure, at the 10th (10) and last (14) rib locations, the total backfat thickness, the area of the loin muscle (c-LA), and the thickness of the 4 backfat (BF) layers, namely, the outer (c-OBF), middle (c-MBF), outer plus middle (c-OMBF), and the inner (c-IBF). Finally, intramuscular fat percentages (IMF) were obtained from the meat samples. Corresponding measurements from the ultrasound (u) images were similarly taken at the same 2 ribs (u-BF, u-LA, u-OBF, u-MBF, u-OMBF, and u-IBF). The correlation was greatest between u-MBF10 and c-MBF10 (0.84). Most correlations between ultrasound and carcass measurements were lower at the last rib than at 10th rib. The greatest correlation of IMF10 occurred with u-IBF10 (0.40). Ham weight and HL were more correlated with u-BF10 than with u-BF14 whereas FW was more correlated with u-BF14. The u-LA was more correlated with HW, FW, and LW at the last rib than at the 10th rib. Slaughter live weight accounted for 0.84, 0.42, 0.36, and 0.54% of the variation for the prediction of CW, HW, FW, and CLPW, respectively. The u-LA10 and u-LA14 increased the variation explained by the model up to 0.89, 0.48, 0.39, and 0.62% for CW, HW, FW, and CLPW, respectively. Including u-GBF in the models also increased the R(2) values for predicting HW, LW, HY (ham yield), and LY (loin yield). In conclusion, u-LA10, u-LA14, and u-GBF may improve weight of commercial cuts and yield prediction in live Iberian pigs.
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Applicability of 2-DE to assess differences in the protein profile between cold storage and not cold storage in nectarine fruits. J Proteomics 2012; 75:5774-82. [PMID: 22926270 DOI: 10.1016/j.jprot.2012.08.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 07/26/2012] [Accepted: 08/07/2012] [Indexed: 01/11/2023]
Abstract
Cold storage is being used to increase nectarine fruits' postharvest life. However, low temperatures lead to chilling injury and limit their commercial quality and value. In this study a proteomic approach was used to compare the protein profile between control and cold storage nectarine fruits. Protein extracted from tissue was resolved by two-dimensional gel electrophoresis (2-DE) in the 4-7 pH and 10-200 kDa Mr range. Around 350 spots were well determined, and 11 from 17 spots that showed significant differences were identified by peptide mass fingerprinting (PMF) using matrix-assisted laser desorption/ionization (MALDI)-time-of-flight (TOF)-mass spectrometry (MS). Four differentially expressed proteins were characterized as allergens and were further assessed at the transcription level using quantitative real time-RT-PCR (qRT-PCR).
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Abstract
OBJECTIVE To assess the accuracy contrast-enhanced ultrasound (CEUS) in bladder cancer detection using transurethral biopsy in conventional cystoscopy as the reference standard and to determine whether CEUS improves the bladder cancer detection rate of baseline ultrasound. METHODS 43 patients with suspected bladder cancer underwent conventional cystoscopy with transurethral biopsy of the suspicious lesions. 64 bladder cancers were confirmed in 33 out of 43 patients. Baseline ultrasound and CEUS were performed the day before surgery and the accuracy of both techniques for bladder cancer detection and number of detected tumours were analysed and compared with the final diagnosis. RESULTS CEUS was significantly more accurate than ultrasound in determining presence or absence of bladder cancer: 88.37% vs 72.09%. Seven of eight uncertain baseline ultrasound results were correctly diagnosed using CEUS. CEUS sensitivity was also better than that of baseline ultrasound per number of tumours: 65.62% vs 60.93%. CEUS sensitivity for bladder cancer detection was very high for tumours larger than 5 mm (94.7%) but very low for tumours <5 mm (20%) and also had a very low negative predictive value (28.57%) in tumours <5 mm. CONCLUSION CEUS provided higher accuracy than baseline ultrasound for bladder cancer detection, being especially useful in non-conclusive baseline ultrasound studies.
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Detección múltiple de SNPS relacionados con crecimiento y calidad de carne en porcino. ARCHIVOS DE ZOOTECNIA 2008. [DOI: 10.21071/az.v59i226.4738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Se describe un método basado en análisis por primer extension para genotipar simultáneamente 7 SNPs relacionados con el crecimiento y la calidad de la carne en porcino. Las muestras de ADN genómico fueron obtenidas de 193 animales pertenecientes a varias razas (54 Ibérico, 63 Duroc, 47 Large White-Landrace x Large White) y a jabalí (29). A partir de las secuencias de los genes H-FABP, MC4R y LEPR, se diseñaron 4 parejas de cebadores con el fin de amplificar las regiones del genoma porcino que contienen esos 7 SNPs. La reacción de minisecuenciación primer extension (ABI PRISM SNaPshot MultiplexTM kit. Applied Biosystem) se realizó con cebadores diseñados en las regiones flanqueantes de cada uno de los SNPs de interés. Los genotipos fueron identificados por mini-secuenciación con ABIPrism 3130 y GeneMapper 3.7 (Applied Biosystems) pudiéndose así discriminar, en una sola reacción, los diferentes alelos de los 7 SNPs de cada animal. Gracias a esta técnica han sido detectados los polimorfismos T221C y C233T del gen LEPR (Genbank AF092422), que no eran reconocibles por enzimas de restricción. Este método permite identificar los animales con genotipo más deseables para la selección.
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[Localization of sentinel node in squamous cell carcinoma of the penis. Initial experience]. REVISTA ESPANOLA DE MEDICINA NUCLEAR 2008; 27:3-7. [PMID: 18208775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To assess the validity of radioguided sentinel node biopsy in squamous cell penile carcinoma. MATERIAL AND METHODS Fifteen patients were studied. The first 5 patients were included in a group for validation of the technique, in which a standard inguinal lymphadenectomy was performed after the procedures described below. The remaining 10 patients were included in the technique application group. The day before surgery, lymphoscintigraphy was performed on all patients. During the operation, radioguided biopsy to locate the sentinel node was done. Methylene blue dye was injected shortly before surgery in 10 patients. All patients were followed for an average of 32 months. RESULTS In the validation group, lymphoscintigraphy revealed inguinal drainage in 5/5 patients. Unilateral metastases were detected in 3/5 patients. No metastatic nodes were detected among the nodes removed during inguinal lymphadenectomy. In the application group, lymphoscintigraphy showed inguinal drainage in 9/10 patients. Nineteen nodes were removed, none of which showed tumour involvement. During the follow-up period, no disease progression or recurrence were observed in either patient group. CONCLUSIONS Radioguided localization and biopsy of the sentinel nodes can avoid unnecessary lymphadenectomies in patients with squamous cell penile carcinoma and high or intermediate risk of lymph node involvement. This technique shows high reliability and negative predictive value in penile carcinoma.
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Cloning and characterization of a β-galactosidase encoding region in Lactobacillus coryniformis CECT 5711. Appl Microbiol Biotechnol 2006; 73:640-6. [PMID: 16820950 DOI: 10.1007/s00253-006-0510-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2006] [Revised: 05/15/2006] [Accepted: 05/16/2006] [Indexed: 10/24/2022]
Abstract
A chromosomal DNA fragment of 7.8 kb from Lactobacillus coryniformis CECT 5711 was cloned in Escherichia coli K-12 and was found to express a functional beta-galactosidase. Nucleotide sequence analysis showed that this fragment contained two partially overlapping genes, the lacL (1,881 bp) and the lacM (960 bp), that encode the subunits of a heterodimeric beta-galactosidase, with estimated molecular masses of 72,129 and 35,233 Da, respectively. Other three incomplete open reading frames showing homology to another beta-galactosidase, an alpha-galactosidase, and a galactokinase, respectively, were also found. The L. coryniformis beta-galactosidase was overproduced in E. coli by using an isopropyl-beta-D: -thiogalactopyranoside (IPTG) expression system. Two new proteins with an estimated M (r) s of approximately 72,000 and 35,000 appeared upon induction with IPTG, and extracts of the recombinant E. coli strain showed beta-galactosidase activity.
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Rapid suppression of drive for a parasitic B chromosome. Cytogenet Genome Res 2004; 106:338-43. [PMID: 15292613 DOI: 10.1159/000079309] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2004] [Accepted: 01/15/2004] [Indexed: 11/19/2022] Open
Abstract
The persistence of parasitic B chromosomes in natural populations depends on both B ability to drive and host response to counteracting it. In the grasshopper Eyprepocnemis plorans, the B24 chromosome is the most widespread B chromosome variant in the Torrox area (Málaga, Spain). Its evolutionary success, replacing its ancestral neutralized B variant, B2, was based on meiotic drive in females, as we showed in a sample caught in 1992. In females collected six years later, mean B24 transmission ratio (k(B)) was 0.523, implying a very rapid decrease from the 0.696 observed in 1992. This shows that B24 neutralization is running very fast and suggests that it might most likely be based on a single gene of major effect.
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Abstract
Parasites and hosts are involved in a continuous coevolutionary process leading to genetic changes in both counterparts. To understand this process, it is necessary to track host responses, one of which could be an increase in sex and recombination, such as is proposed by the Red Queen hypothesis. In this theoretical framework, the inducible recombination hypothesis states that B-chromosomes (genome parasites that prosper in natural populations of many living beings) elicit an increase in host chiasma frequency that is favoured by natural selection because it increases the proportion of recombinant progeny, some of which could be resistant to both B-chromosome effects and B-accumulation in the germline. We have found a clear parallelism between host recombination and the evolutionary status of the B-chromosome polymorphism, which provides explicit evidence for inducible recombination and strong support for the Red Queen hypothesis.
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Abstract
Metastatic carcinoma to the testis is very unusual in daily urologic practice. We report a case of metastatic cancer to the testis detected as incidental findings in a squamous bladder tumor.
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Free to complexed PSA ratio in differentiating benign prostate hyperplasia from prostate cancer. Anticancer Res 2001; 21:3717-20. [PMID: 11848550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
BACKGROUND The description of the different forms of circulating PSA has opened a new strategy in the diagnosis of prostate cancer. The aim of our study was to assess the diagnostic potential of PSA and the PSA fractions in the diagnosis of benign prostate hyperplasia (BPH) and prostate cancer. PATIENTS AND METHODS We measured the serum levels of PSA (Elecsys 2010, Roche Diagnostics, Mannheim, Germany), complexed PSA (Immuno 1 system, Bayer, Tarrytown, NY USA) and free PSA (Elecsys 2010, Roche Diagnostics, Mannheim, Germany) in 178 patients with BPH and 44 patients with prostate cancer. RESULTS ROC curves were used for comparison of the diagnostic utility of the tests assessed. The biggest areas under the curve were obtained for the ratios between free/complexed PSA and free/total PSA (0.887 and 0.872, respectively). When choosing the cut-off values to obtain a 90% sensibility, we found that the specificity for the free/total PSA ratio was 59% and for the free/complexed PSA ratio 72%. CONCLUSION Our results suggest that replacement of the measurement of total PSA by complexed PSA in prostate cancer diagnosis may be interesting. Nevertheless, as this is a retrospective study limited to a small number of patients, it is obvious that we need more data to make a final decision with regard to this subject.
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Undetectable prostate specific antigen in disseminated prostate cancer. J Urol 2001; 166:993. [PMID: 11490269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Abstract
BACKGROUND High-grade prostate intraepithelial neoplasia (PIN) is the most likely precursor of prostate adenocarcinoma. However, the relationship between this lesion and prostate cancer has not yet been established. The detection of cytogenetic changes in the lesions prior to prostate adenocarcinoma would be useful in demonstrating such a pathogenic relationship. METHODS Twenty eight high-grade PIN cases were found among 57 specimens of radical prostatectomy performed for clinically localized prostate cancer. Fluorescence in situ hybridization (FISH) analysis using centromeric probes to enumerate chromosomes 7, 8, 10, and 12 was performed to study the numerical chromosome alterations. FISH analysis was carried out over isolated nuclei obtained from high-grade PIN areas and prostate cancer foci in the same prostatectomy specimen. RESULTS Of the 28 suitable cases it was possible to complete the study in 26 tumor and 20 PIN areas. The remaining cases were excluded because of insufficient tissue or poor preservation. Cytogenetic alterations (aneuploidy) were found in 16 of the 26 (62%) tumors studied. The most frequent chromosome alteration was trisomy 7, detected in 12 (75%) aneuploid tumors, followed by monosomy 8 present in 5 (31%) aneuploid tumors. Trisomy 7 was also the most frequent isolated chromosome alteration since it was detected in 7 (44%) tumors. Thirteen of 20 (65%) PIN cases were aneuploid when studied by FISH. Trisomy 7, trisomy 8, and monosomy 8 were the most common cytogenetic alterations in the 20 PIN areas studied, being observed in nine (45%), six (30%), and four (20%) cases, respectively. FISH analysis showed a high correlation (75% cases) in ploidy and pattern of cytogenetic alterations between high-grade PIN areas and the paired prostate cancer focus in the same specimen. CONCLUSIONS The above results show a cytogenetic link between high-grade PIN and prostate cancer, suggesting that the former could be an early form of prostate cancer.
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Numeric alterations in chromosomes 7 and 8 detected by fluorescent in situ hybridization correlate with high-grade localized prostate cancer. Eur Urol 2000; 34:419-25. [PMID: 9803005 DOI: 10.1159/000019776] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To compare the ability of flow cytometry (FCM) and fluorescent in situ hybridization (FISH), using a small set of 4 enumeration chromosome probes to detect aneuploidy in prostate tumors, and to correlate it with histological grade and pathological stage. METHODS Among 28 suitable cases, 21 could be analyzed by FISH and FCM techniques. DNA centromeric probes were used in FISH analysis to enumerate chromosomes 7, 8, 10 and 12. RESULTS (a) Of the 21 cases studied by FISH, 5 were diploid, 14 aneuploid and 2 were tetraploid. When studied by FCM, these tumors were: 14 diploid, 6 aneuploid, and 1 tetraploid. FISH proved to have a higher ability for detecting DNA aneuploidy than FCM while been equally specific, since all tumors aneuploid by FCM were also found to be aneuploid by FISH. (b) Of the 14 aneuploid tumors, 12 were of high histological grade, while only 2 of the 7 nonaneuploid were of high grade. A statistically significant association was observed between high histological grade and FISH aneuploidy (p = 0.033). (c) All the aneuploid tumors showed chromosome 7 and/or 8 aneusomy. Trisomy 7 and monosomy 8 were the most frequent alterations present in 56 and 42% of the aneuploid tumors, respectively. CONCLUSION FISH analysis of chromosome 7 and 8 alterations proved to be more sensitive than FCM in the detection of aneuploid prostate tumors. This aneuploidy was significantly associated with a poor pathological prognosis.
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Abstract
OBJECTIVES Histological grade (G) is the only parameter proved to have prognostic value for progression in T1 transitional cell carcinoma (TCC) of the bladder, although it is considered inaccurate to make clinical decisions on individuals. The aim of the present study was to evaluate the prognostic relevance of p53 expression in T1 TCC of the bladder. METHODS Clinical records of 207 patients with T1 TCC of the bladder were reviewed for clinical parameters reported to influence the evolution of superficial bladder cancer. Among these 207 patients, 40 developed muscle-invasive disease (20 G2 and 20 G3). A retrospective case-control study was then carried out comparing the latter 40 tumours with 40 control tumours matched by grade, sex, age, number and size of the tumours, chemical exposure and presence of carcinoma in situ. p53 immunostaining with monoclonal antibody was performed in these two groups. RESULTS Histological grade was the only clinical parameter that influenced evolution. p53 expression correlated with tumour progression, since it was observed in 21 out of 24 p53-positive tumours and in only 20 of 56 p53-negative tumours (p<0.0001), showing a specificity of 93. 5% and a sensitivity of 53%. p53 expression correlated as well with patient survival, being 39% in patients with p53-positive tumours and 80% in patients with p53-negative tumours at 60 months (p<0. 0001). CONCLUSIONS p53 protein expression has prognostic value for survival and progression in T1 bladder tumours and can be used for early detection of poor-prognosis T1 bladder tumours.
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Abstract
BACKGROUND To enhance the specificity of PSA in diagnosis of cancer, several approaches have been evaluated, having in common the study of fractions of PSA. The aim of this study was to evaluate the usefulness of complexed PSA in the differential diagnosis between benign prostate hyperplasia (BPH) and prostate cancer. METHODS We determined the concentrations of complexed PSA (Bayer, Tarrytown, NY) and total PSA (Tandem-R Assay, Hybritech Incorporated, San Diego, CA) in 196 patients with BPH and in 55 patients with prostate cancer. Likewise, the percentage of free PSA (Wallac, Turku, Finland) was determined for 124 of these patients. RESULTS The specificity of complexed PSA was found to be greater than that of total PSA for the cutoff values corresponding to sensitivities of 80%, 85%, and 90%. Similarly, the area under the curve obtained by receiver-operating curve analysis was greater for complexed PSA than for total PSA, although significant differences were not observed. The diagnostic usefulness of complexed PSA in the differential diagnosis between BPH and prostate cancer was found to be lower than the percentage of free PSA. CONCLUSIONS We believe that differential diagnosis with complexed PSA between BPH and prostate cancer is of little use, due to low efficacy when PSA results are extreme.
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[Round Table: Urticaria in relation to infections]. Allergol Immunopathol (Madr) 1999; 27:73-85. [PMID: 10354011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
OBJECTIVES 1) To study the clinical and analytic features of infectious disease associated to urticaria in children. 2) To look into the probable etiology of the infectious disease. 3) To determine atopic predisposition and previous urticarial episodes and to rule out the involvement of antibiotics. DESIGN Transversal and observational study. SETTING Pediatric Allergy Outpatient Clinic of a tertiary Hospital. PATIENTS Forty-four children, aged 1 to 12 years with acute urticaria associated to clinically infectious or febrile illness attending an Emergency Pediatric Department. INTERVENTION Symptoms evaluation and physical examination in the seventh first days and follow over 3-6 weeks by the same physician. MEASUREMENTS Clinical features of urticaria (duration, angioedema associated); Clinic diagnosis of illness infectious (acute respiratory infection, gastroenteritis, febrile syndrome); white blood cells count, C-reactive protein, aminotransferases (AST, ALT), L-Y-glutamyl transferase; viral culture and antigen detection: enterovirus (EV), adenovirus, respiratory syncytial virus (RSV), parainfluenza 1, 2 and 3, influenza A y B and cytomegalovirus (CMV); serological assay: CMV, enterovirus, mycoplasma pneumoniae, Epstein-Barr, parvovirus B19. RESULT 22 children (50%) are between 1-2 years old. 40 patients (90,9%) had symptoms of respiratory tract infection and only four patients had a pneumonia. The other 4 children had a gastroenteritis. The analytic was suggestive of viral infection in 35 (79.5%) and unknown on seven patients. In 20 children (45.4%) was identified a probable infection. The viral detection was positive in 3 patients: CMV, herpes simplex 1 and influenza A. Twenty microbiological findings for seventeen patients was found by serological criterion of probable infection: enterovirus (10); parvovirus B19 (4); Epstein-Barr (3) y mycoplasma (3). Evidence of a double serologic infection was found in three patients. In comparison with a serological control group encountered that acute urticaria during a infectious disease is significantly associated (p = 0.0054) to high titer to enterovirus by complement-fixation. The urticaria was associated with angioedema in 38.6% and 9 children (20.4%) related an previous similar episode. Twenty-one (47.7%) had been treated with antibiotics before development the urticaria. All patients was given the suspected antibiotic and no patient developed any adverse reaction. CONCLUSIONS The clinically infectious associated to urticarial rash in children, usually is a viral respiratory infections. Is more frequent at infant. In spite of antibiotic therapy is often related to development the urticaria, the subsequent challenge with the same antibiotic is good tolerated.
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[Infection by hepatitis B virus. Epidemiological study in a general hospital]. Med Clin (Barc) 1985; 84:85-9. [PMID: 3974365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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