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Flores-Suarez L, Dominguez A, Ramon G, Sanchez-Guerrero J, Lima G. F.79. Monocyte Chemoattractant Protein-1 Promoter Polymorphism in Mexican Mestizo Patients with Antineutrophil Cytoplasm Autoantibodies-Associated Vasculitides. Clin Immunol 2006. [DOI: 10.1016/j.clim.2006.04.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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77
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Lima G, Spina AM, Castoria R, De Curtis F, De Cicco V. Integration of biocontrol agents and food-grade additives for enhancing protection of stored apples from Penicillium expansum. J Food Prot 2005; 68:2100-6. [PMID: 16245713 DOI: 10.4315/0362-028x-68.10.2100] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Forty-nine compounds currently used as additives in foods were tested in combination with three biocontrol agents, the yeasts Rhodotorula glutinis, Cryptococcus laurentii, and the yeastlike fungus Aureobasidium pullulans, to increase their antagonistic activity against Penicillium expansum, the causal agent of blue mold on apples. Twelve additives dramatically improved the antagonistic activity of one or more of the tested biocontrol agents. In a two-way factorial experiment with these selected additives the percentage of P. expansum rots on apples was significantly influenced by the antagonist and the additive as well as by their interaction. The combination of the biocontrol agents and some additives resulted in a significantly higher activity with respect to the single treatments applied separately, producing additive or synergistic effects. Some of the selected additives combined with a low yeast concentration (106 cells per ml) had comparable or higher efficacy than the biocontrol agents applied alone at a 100-fold higher concentration (10(8) cells per ml). Some organic and inorganic calcium salts, natural gums, and some antioxidants displayed the best results. In general, the effect of each additive was specific to the biocontrol isolate used in the experiments. Possible mechanisms involved in the activity of these beneficial additives and their potential application in effective formulations of postharvest biofungicides are discussed.
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Lima G, Castoria R, Spina A, De Curtis F, Caputo L. IMPROVEMENT OF BIOCONTROL YEAST ACTIVITY AGAINST POSTHARVEST PATHOGENS: RECENT EXPERIENCES. ACTA ACUST UNITED AC 2005. [DOI: 10.17660/actahortic.2005.682.276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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79
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Mendonca J, Viana SL, Freitas F, Lima G. Late-onset progressive facial hemiatrophy (Parry-Romberg syndrome). J Postgrad Med 2005; 51:135-6. [PMID: 16006711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023] Open
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Neves L, Lima G, Aguirre Gómez JG, Monken CH, Saavedra C, Pádua S. Generation of entangled states of qudits using twin photons. PHYSICAL REVIEW LETTERS 2005; 94:100501. [PMID: 15783465 DOI: 10.1103/physrevlett.94.100501] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2004] [Revised: 10/11/2004] [Indexed: 05/24/2023]
Abstract
We report an experiment to generate entangled states of D-dimensional quantum systems, qudits, by using transverse spatial correlations of two parametric down-converted photons. Apertures with D slits in the arms of the twin photons define the qudit space. By manipulating the pump beam correctly, the twin photons will pass only by symmetrically opposite slits, generating entangled states between these different paths. Experimental results for qudits with D = 4 and 8 are shown. We demonstrate that the generated states are entangled states.
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Rakotomizao J, Barlési F, Lima G, Doddoli C, Gimenez C, Palot A, Kleisbauer JP. [Disordered higher functions in a smoker]. Rev Mal Respir 2004; 21:595-8. [PMID: 15292854 DOI: 10.1016/s0761-8425(04)71366-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Paraneoplastic syndromes sometimes lead to the discovery of an intrathoracic tumour, notably small cell lung cancer (SCLC). MATERIALS AND METHODS We report the case of a patient presenting with a paraneoplastic syndrome characterised by disordered higher functions and convulsions, representing a paraneoplastic encephalo-myelitis (PEM). This PEM led to the diagnosis of SCLC. The diagnostic features and progress of the PEM are discussed. CONCLUSION Recognition of PEM allows the diagnosis and early treatment of the underlying cancer, strongly influencing the prognosis, particularly in SCLC.
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Magnusson V, Johanneson B, Lima G, Odeberg J, Alarcón-Segovia D, Alarcón-Riquelme ME. Both risk alleles for FcγRIIA and FcγRIIIA are susceptibility factors for SLE: a unifying hypothesis. Genes Immun 2004; 5:130-7. [PMID: 14737097 DOI: 10.1038/sj.gene.6364052] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The aim of this study was to analyze in families with SLE for the presence of linkage and the structure and transmission of haplotypes containing alleles for the low-affinity Fcgamma receptors. The Fcgamma receptor polymorphisms FcgammaRIIA-131R/H, FcgammaRIIIA-176F/V and FcgammaRIIIB-NA1/2 and a polymorphism in the FcgammaRIIB gene were genotyped with RFLP, allele-specific PCR or pyrosequencing. Individual SNPs and haplotypes were tested for linkage in multicase families and for association using contingency tables, transmission disequilibrium test and affected family-based control groups in Swedish and Mexican single-case families. No linkage or association could be detected using the FcgammaR polymorphisms in the multicase families. However, an association was found for both FcgammaRIIA-131R and IIIA-176F alleles in the single-case families, but not for IIIB or IIB. Allelic association to SLE was found for a haplotype that included both risk alleles, but not in haplotypes where only one or the other was present. We propose that FcgammaRIIA-131R and FcgammaRIIIA-176F are both risk alleles for SLE transmitted primarily, but not exclusively on a single major haplotype that behaves functionally in a situation similar to that of compound heterozygozity.
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Occhipinti E, Caravello T, Ciminello N, Di Pietro A, Lima G, Machì A, Raia GM, Scarfia MF, Spinto C, Vaccaro PG, Rizzo A. [Sepsis by Candida in VLBW neonates: therapy with liposomal Amphotericin B]. LA PEDIATRIA MEDICA E CHIRURGICA 2004; 26:57-60. [PMID: 15529814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023] Open
Abstract
Candida spp. are recently frequent cause of nosocomial sepsis in neonates admitted in NICU, expecially VLBW. Amphotericin B is used in the treament of infections caused by Candida, but heavy side effects, expecially due to renal toxiticy, prevent often its use in the VLBW neonates. We used a new formulation of Amphotericin (AmBisome--NEXSTAR), in the treatment of 17 VLBW neonates affected by sepsis caused by Candida albicans, admitted in our NICU during two years. Twelve neonates survived, one neonate died for NEC and bowel perforation. The treatment was prolonged for 13 days (7-33 days), the total amount of dose was 65 mg/Kg, none side effect was noted.
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Barlési F, Doddoli C, Gimenez C, Greillier L, Lima G, Kleisbauer JP. [Acute pulmonary toxicity due to gemcitabine: a role for asbestos exposure?]. Rev Mal Respir 2003; 20:201-6. [PMID: 12844017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
INTRODUCTION Gemcitabine is an important drug in the treatment of non-small cell lung cancer. Myelosuppression is the most common toxic effect but its use sometimes leads to severe pulmonary toxicity by means of diffuse alveolar damage or sub-acute interstitial pneumonitis. METHODS A retrospective study was made of all the patients treated in our department with this drug, alone or in combination. Episodes of acute dyspnoea during the course of chemotherapy were identified, and data were collected concerning the past history, the illness and the treatment in patients who had developed a respiratory failure attributable to gemcitabine. RESULTS 312 patients had been treated with gemcitabine over a 5 year period and 18 had developed episodes of acute dyspnoea, of which 6 (1.9%) were attributed to the drug itself. Of these patients 4 had notifiable industrial disease (no. 30bis) secondary to asbestos exposure (odds ratio=85, 95% confidence interval 13-546) and 5 were active smokers. The possible role of intracellular ATP pool depletion secondary to asbestos exposure or smoking as a predisposing factor in the development of gemcitabine pulmonary toxicity is discussed. CONCLUSION Smoking and asbestos exposure should be taken into account in future studies of gemcitabine pulmonary toxicity.
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Abrantes D, Pontes M, Lima G, Rezende P, Pereira M, Pinheiro M. Analysis of Penta D and Penta E STR loci in a Northern Portuguese population. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0531-5131(02)00344-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Prokunina L, Castillejo-López C, Oberg F, Gunnarsson I, Berg L, Magnusson V, Brookes AJ, Tentler D, Kristjansdóttir H, Gröndal G, Bolstad AI, Svenungsson E, Lundberg I, Sturfelt G, Jönssen A, Truedsson L, Lima G, Alcocer-Varela J, Jonsson R, Gyllensten UB, Harley JB, Alarcón-Segovia D, Steinsson K, Alarcón-Riquelme ME. A regulatory polymorphism in PDCD1 is associated with susceptibility to systemic lupus erythematosus in humans. Nat Genet 2002; 32:666-9. [PMID: 12402038 DOI: 10.1038/ng1020] [Citation(s) in RCA: 533] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2002] [Accepted: 09/11/2002] [Indexed: 11/09/2022]
Abstract
Systemic lupus erythematosus (SLE, OMIM 152700) is a complex autoimmune disease that affects 0.05% of the Western population, predominantly women. A number of susceptibility loci for SLE have been suggested in different populations, but the nature of the susceptibility genes and mutations is yet to be identified. We previously reported a susceptibility locus (SLEB2) for Nordic multi-case families. Within this locus, the programmed cell death 1 gene (PDCD1, also called PD-1) was considered the strongest candidate for association with the disease. Here, we analyzed 2,510 individuals, including members of five independent sets of families as well as unrelated individuals affected with SLE, for single-nucleotide polymorphisms (SNPs) that we identified in PDCD1. We show that one intronic SNP in PDCD1 is associated with development of SLE in Europeans (found in 12% of affected individuals versus 5% of controls; P = 0.00001, r.r. (relative risk) = 2.6) and Mexicans (found in 7% of affected individuals versus 2% of controls; P = 0.0009, r.r. = 3.5). The associated allele of this SNP alters a binding site for the runt-related transcription factor 1 (RUNX1, also called AML1) located in an intronic enhancer, suggesting a mechanism through which it can contribute to the development of SLE in humans.
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Johanneson B, Lima G, von Salomé J, Alarcón-Segovia D, Alarcón-Riquelme ME. A major susceptibility locus for systemic lupus erythemathosus maps to chromosome 1q31. Am J Hum Genet 2002; 71:1060-71. [PMID: 12373647 PMCID: PMC385085 DOI: 10.1086/344289] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2002] [Accepted: 08/12/2002] [Indexed: 11/03/2022] Open
Abstract
A set of 87 multicase families with systemic lupus erythemathosus (SLE) from European (Iceland, Sweden, England, Norway, Italy, and Greece) and recently admixed (Mexico, Colombia, and the United States) populations were genotyped and analyzed for 62 microsatellite markers on chromosome 1. By parametric two-point linkage analysis, six regions (1p36, 1p21, 1q23, 1q25, 1q31, and 1q43) were identified that have LOD scores of Z>or=1.50, with different contributions, depending on the population of origin of the families (European or admixed American). All of the regions have been described previously and have therefore been confirmed in this analysis. The locus at 1q31 showed a significant three-point LOD score of Z=3.79 and was contributed by families from all populations, with several markers and under the same parametric model. Analysis of a known mutation in the CD45 gene did not support the role that this mutation plays in disease. We conclude that the locus at 1q31 contains a major susceptibility gene, important to SLE in general populations.
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Prokunina L, Castillejo-López C, Oberg F, Gunnarsson I, Berg L, Magnusson V, Brookes AJ, Tentler D, Kristjansdóttir H, Gröndal G, Bolstad AI, Svenungsson E, Lundberg I, Sturfelt G, Jönssen A, Truedsson L, Lima G, Alcocer-Varela J, Jonsson R, Gyllensten UB, Harley JB, Alarcón-Segovia D, Steinsson K, Alarcón-Riquelme ME. A regulatory polymorphism in PDCD1 is associated with susceptibility to systemic lupus erythematosus in humans. Nat Genet 2002. [PMID: 12402038 DOI: 10.1038/ng1020ng1020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Systemic lupus erythematosus (SLE, OMIM 152700) is a complex autoimmune disease that affects 0.05% of the Western population, predominantly women. A number of susceptibility loci for SLE have been suggested in different populations, but the nature of the susceptibility genes and mutations is yet to be identified. We previously reported a susceptibility locus (SLEB2) for Nordic multi-case families. Within this locus, the programmed cell death 1 gene (PDCD1, also called PD-1) was considered the strongest candidate for association with the disease. Here, we analyzed 2,510 individuals, including members of five independent sets of families as well as unrelated individuals affected with SLE, for single-nucleotide polymorphisms (SNPs) that we identified in PDCD1. We show that one intronic SNP in PDCD1 is associated with development of SLE in Europeans (found in 12% of affected individuals versus 5% of controls; P = 0.00001, r.r. (relative risk) = 2.6) and Mexicans (found in 7% of affected individuals versus 2% of controls; P = 0.0009, r.r. = 3.5). The associated allele of this SNP alters a binding site for the runt-related transcription factor 1 (RUNX1, also called AML1) located in an intronic enhancer, suggesting a mechanism through which it can contribute to the development of SLE in humans.
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Correia AD, Lima G, Costa MH, Livingstone DR. Studies on biomarkers of copper exposure and toxicity in the marine amphipod Gammarus locusta (Crustacea): I. Induction of metallothionein and lipid peroxidation. Biomarkers 2002; 7:422-37. [PMID: 12437856 DOI: 10.1080/135475002760413516] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Sublethal exposures of the marine amphipod Gammarus locusta to a concentration range of copper (Cu) in water (4 days' exposure; 3, 5 and 10 micro g Cu l(-1)) or spiked sediments (28 days' exposure; 1, 3 and 6 mg Cu kg(-1) dry weight) were performed, and the resulting bioaccumulation of Cu and effects on putative metallothionein (MT) and lipid peroxidation (LP) were investigated. A time-course exposure study (over 10 days) to a single water-borne concentration of Cu (4 micro g l(-1)) was also carried out. MT and LP were quantified, respectively, by differential pulse polarography and as thiobarbituric acid-reactive malondialdehyde equivalents. The increasing levels of Cu in water and sediment exposures resulted in enhanced uptake of the metal by G. locusta. Synthesis of putative MT occurred in response to exposure to water-borne Cu, the levels being higher (p < 0.05) over the dose range of Cu compared with controls. A positive correlation was observed between putative MT levels and the Cu body-burden concentration (p < 0.001). However, no increase in LP was observed in these animals. In contrast, in the time-course experiment, LP levels increased within 1 day of exposure, subsequently peaking at 4 days (68% greater than control, p < 0.001), before returning to control values by day 6. Higher levels of MT were also observed in this exposure, but at days 6 and 10 (55% and 38%, respectively), paralleling the decrease in LP. No increase in MT levels was recorded with exposure to Cu-contaminated sediments, whereas higher levels of LP were seen in comparison with controls (p < 0.001). Overall, the inverse relationship between putative MT induction and the occurrence of LP indicates that MT may protect against the prooxidant effects of Cu. It is concluded that MT and LP offer potential for application as biomarkers in G. locusta.
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Lima G, Medeiros R, Palmeira C, Pereira D, Vasconcelos A, Carrilho S, Ferreira P, Lopes C. Detection of Epstein-barr virus in breast cancer by polymerase chain reaction. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81142-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Antico A, Lima G, Arisi M, Ostan A, Morrica B. Assay of prick test inoculum volume. II. Average values and individual variability. Ann Allergy Asthma Immunol 2000; 85:145-9. [PMID: 10982223 DOI: 10.1016/s1081-1206(10)62455-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION The amount of reagent introduced into the skin by a prick test is critical in studies on the reproducibility and standardization of the method. OBJECTIVE The purpose of the present study was to measure the average volume and the individual variability of the inoculum performed with a prick test standardized technique. METHODS Two hundred forty prick tests--16 inoculations per subject--were performed on the volar sides of arms of 15 healthy volunteers. The tests were performed by a skilled tester whose technical performance complied with the criteria of good reproducibility described in international guidelines. A 1-mm tip standard device and a 50% glycerosaline solution labeled with Tc99m were used for the test. The inoculum size was calculated using a direct assay method based on the gamma camera. RESULTS The average volume of the prick test inoculum was equal to 0.016 microliters, with a remarkable dispersion of the values around the mean (median, 15906: range, 418 to 82253 picoliters). Further, we observed great variability from one subject to another and great variability in the same subject from one skin site to another. A statistical analysis of the data shows that this variability depends on the individual characteristics of the subjects examined. A skilled tester using a standardized technique is not responsible for significant variability. CONCLUSIONS Even when performed by a skilled operator and with standardized techniques, the prick test shows great limits of reproducibility, at least as far as the size of the inoculum volume is concerned. The variability of the inoculum depends, in a statistically significant way, on the subject's individual characteristics and therefore can be reduced only within certain limits by the standardization and perfectibility of the technique.
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Antico A, Lima G, Arisi M, Ostan A, Morrica B. Assay of prick test inoculum volume. I. Use and reliability of a gamma camera-based method. Ann Allergy Asthma Immunol 2000; 85:140-4. [PMID: 10982222 DOI: 10.1016/s1081-1206(10)62454-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION In dermatology and allergy there are clinical research circumstances where very small amounts of substances introduced into the skin have to be measured "in vivo." An example is the assay of reagents injected by prick test. As injected volumes are very small, it is necessary to use indicators that can be measured at very low concentrations. In in vitro studies, gamma-emitting radioisotopes have been shown suitable for use as the indicators. In in vivo studies, except for instruments devised for specific research requirements, the measurement of small sources is taken with a common gamma camera. OBJECTIVE The purpose of the present study is to evaluate the experimental reliability of a gamma camera-based method to measure microvolumes labeled with radioisotopes and its suitable application in vivo studies. METHODS Using a solution of 99m Tc-pertechnetate, we prepared, with precision pipettes, some sets of scalar volumes ranging from 1 micro to 200 picoliters, which correspond to activities between some micros and some hundreds of picocuries. The volumes were measured with a gamma camera both with and without a collimator. The overall reliability of the method under different experimental conditions was evaluated for sensitivity, precision, and accuracy. Last, a blind measurement was taken as a final check on the overall reliability of the method. RESULTS The volume-activity correlation appeared to be linear, with a Spearman coefficient higher than 0.99. The correlation straight lines of the measurements taken with and without a collimator proved that, in both cases, the linearity of the system did not change. The method showed a high degree of precision and accuracy. The maximum variation coefficient never exceeded 1.5% and the standard error 2%. The sampling error of the measured volumes was less than 8% in all the sets: up to 7% was due to the manual operations and to the technical characteristics of the micropipettes. The gamma camera measurement error ranged from 1% to 3%. The blind tests experimentally confirmed the overall reliability of the method. CONCLUSIONS The method we studied proved highly reliable and inexpensive. Measurement errors are almost exclusively due to sampling errors. The gamma camera is a device any nuclear medicine department is equipped with, and a solution of 99m Tc-pertechnetate is readily available.
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Cirillo F, Bottini A, Lima G, Alquati P. [Radioguided surgery in the treatment of gastro-entero-pancreatic neuroendocrine tumors] . MINERVA CHIR 2000; 55:517-21. [PMID: 11140106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Neuroendocrine tumors are rare neoplasms. In most cases conventional imaging techniques (US,CT,RMN) are not able to identify primitive tumors. This fact conditions the approach to the treatment of these tumors. 111In-Pentetreotide scintigraphy (Octreoscan) permits to visualize occult primary tumor by somatostatin receptors, changing the clinical history of patients. This method can be used in guided surgery with a hand-held gamma probe allowing to improve the detection of occult tumor (inverse square law), giving to the patient further possibilities of survival. Intraoperative gamma probe was still utilized with success in the management of other tumors, as relapsed colorectal cancer, while reports about gamma probe in neuroendocrine tumors are poor because of the rarity of disease. In two cases we have utilized a gamma probe (ORIS model 2) in neuroendocrine tumors: in a case we have observed liver recurring localizations originating from pancreas, with high proliferative index (Ki-67 = 2033 x 10 HPF), and in a case liver metastatic carcinoid of lung. The difference between tumor and background counts was significant exceeds 2 standard deviation count rate. Gamma probe permits a radical cure in many cases and completes intraoperative ultrasound in order to provide the surgeon with other information on the intraoperative staging of the patient.
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Lima G, Quintero-Romero S, Cattaneo A. Feasibility, acceptability and cost of kangaroo mother care in Recife, Brazil. ANNALS OF TROPICAL PAEDIATRICS 2000; 20:22-6. [PMID: 10824209 DOI: 10.1080/02724930092020] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
This descriptive study on kangaroo mother care (KMC) of low-birthweight infants (LBWIs) was carried out in a tertiary care hospital in Recife, Brazil. Of 244 LBWIs weighing less than 1750 g admitted over 14 months, 112 (46%) died before inclusion, 18 (7%) were excluded, and 114 (47%), after stabilization, were cared for by KMC 24 hours a day until discharge. No deaths were recorded in hospital; two twins died of severe pneumonia after discharge and before the age of 3 months. There were no episodes of moderate or severe hypothermia but mild hypothermia (36-36.4 degrees C axillary temperature) occurred at a rate of 30 episodes per 100 infant days, mainly related to occasional separation from the mother. One hundred infants (88%) were discharged on exclusive breastfeeding, eight (7%) were still taking expressed breast-milk from a cup and six (5%) were being fed breast-milk plus formula. The mean daily weight gain during KMC was 15 g. At follow-up, 87% were still exclusively breastfed at 1 month and 63% at 3 months. KMC was acceptable to mothers and staff. An important advantage of KMC over previous conventional care is cost--US$20 vs US$66 per bed/day. This study confirms that KMC for stabilized LBWIs in hospital is feasible, acceptable and cheap and in hospitals with limited resources is an appropriate alternative to conventional incubator care.
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Zimerman L, Medeiros C, Lima G. Catheter-induced 3:1 second degree atrioventricular nodal block during atrioventricular nodal reentrant tachycardia. Arq Bras Cardiol 1999; 72:709-15. [PMID: 10752177 DOI: 10.1590/s0066-782x1999000600006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Usberti M, Bufano G, Lima G, Gazzotti RM, Tira P, Gerardi G, Di Lorenzo D. Increased Red Blood Cell Survival Reduces the Need of Erythropoietin in Hemodialyzed Patients Treated with Exogenous Glutathione and Vitamin E-Modified Membrane. CONTRIBUTIONS TO NEPHROLOGY 1999; 127:208-14. [PMID: 10629790 DOI: 10.1159/000060003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
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Usberti M, Lima G, Arisi M, Bufano G, D'Avanzo L, Gazzotti RM. Effect of exogenous reduced glutathione on the survival of red blood cells in hemodialyzed patients. J Nephrol 1997; 10:261-5. [PMID: 9364318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Reduced glutathione (GSH) is an important scavenger of free radicals in the red blood cell (RBC) membrane, and its deficiency may be a partial cause of increased hemolysis and shortened RBC survival in uremics. In this study we employed exogenous GSH (1200 mg i.v. at the end of each dialysis session for at least nine months) to treat anemia in a group of 28 hemodialyzed patients, 14 of whom were also receiving erythropoietin. RBC survival (51Cr T/2) was calculated before (26 patients) and at the end (15 pts) of GSH therapy. After the first three months anemia (RBC, hemoglobin, hematocrit, reticulocytes) improved significantly in 17 patients (60%), for as long as they were under therapy, but rapidly dropped to pre-treatment values when GSH was discontinued. The 51Cr T/2 increased significantly in responders, but not in those who did not respond. No significant differences were found between responders and non-responders as regards urea KT/V, PTH, serum iron, ferritin, dialysis membrane, dose of erythropoietin and basal 51Cr T/2. These results suggest that exogenous GSH may be a promising drug for the treatment of anemia in most hemodialyzed patients, particularly considering its low cost.
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Anseloni VZ, Motta V, Lima G, Brandão ML. Behavioral and pharmacological validation of the elevated plus maze constructed with transparent walls. Braz J Med Biol Res 1995; 28:597-601. [PMID: 8555981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
In this study we compared the performance of male Wistar rats, weighing 250-300 g, submitted to the standard plus maze (vertical surfaces of the closed arms with opaque walls) to their performance in a modified maze with raised Plexiglas edges in the closed arms (transparent walls). The animals (N = 12 for each group) continued to show a clear preference for the closed arms with transparent walls of the modified elevated plus maze. In addition, exploratory activity was higher in the open arms of the modified plus maze (4.25 +/- 0.42 entries and 53.50 +/- 5.10 s) as compared to that of the standard plus maze (2.10 +/- 0.25 entries and 24.00 +/- 4.91 s). Intraperitoneal injection of midazolam produced an increase in the number of entries (6.40 +/- 1.21 and 8.50 +/- 1.15 for 1.0 and 2.0 mg/kg, respectively) and in the time spend in the open arms (85.32 +/- 14.56 and 125.50 +/- 22.16 s for 1.0 and 2.0 mg/kg, respectively) while pentylenetetrazole caused a decrease in the number of entries (3.68 +/- 0.54 and 2.33 +/- 0.62 for 5.0 and 10 mg/kg, respectively) and in the time spent in the open arms of the modified maze (39.60 +/- 6.67 and 23.60 +/- 6.40 s for 5.0 and 10 mg/kg, respectively). The anxiolytic effect of midazolam and the anxiogenic effect of pentylenetetrazole were similar to those usually reported in the literature by authors using the standard test. These results behaviorally and pharmacologically validate the elevated plus maze with transparent walls and suggest that this test could be a useful tool for the study of anxiolytic drugs and the neurobiology of anxiety.
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Lima G, Panduro A. [The PCR in gastroenterology]. REVISTA DE GASTROENTEROLOGIA DE MEXICO 1993; 58:108-18. [PMID: 7747021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The polymerase chain reaction (PCR) is a molecular biology technique that can significantly amplify DNA or RNA. With the use of recombinant DNA technology, PCR has allowed a spectrum of advances in diagnostic pathology, specially in the fields of viral diseases, hematology and genetic diseases. This work describes the basic aspects, as well as specific issues of the PCR technique. It also contains protocols and experimental conditions that are being used in our laboratory in the diagnosis of hepatitis B (HBV), hepatitis C (HCV) and in the amplification of specific sequences of the APC gene.
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Panduro A, Morales L, Santos A, Valdés L, Lima G, Meléndez J, Cabrera G, Maldonado V, Villalobos JJ. [New strategies in the clinical evaluation of patients with colon cancer based on molecular studies]. REVISTA DE GASTROENTEROLOGIA DE MEXICO 1993; 58:119-27. [PMID: 7747022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
During the last five years molecular studies allowed important advances in the knowledge of cancer colon with important clinical implications. The main finding was the identification and sequence analysis of the APC gen. Structural alterations of this gene have been detected in patients with Familial Adenomatous Polyposis and Gardner syndrome, which suggest a common disease. Furthermore, alterations of the APC gen appears to be also altered in cases of cancer of colon sporadic. Indicating that structural alteration of the APC gen can be inherited and/or acquired. Restriction fragment-length polymorphisms in the chromosome 5q21-22 can now be used clinically for premorbid diagnosis and counseling in familial adenomatous polyposis. The molecular studies allow the clinician to have a new approach in the management and screening of families with familial adenomatous polyposis. The sequence analysis and specific identification of the structural alteration of the APC gene is a more expensive and sophisticated study, although represent a more direct approach. In the Department of Gastroenterology of the INNSZ we are performing such molecular studies. The main purpose of our group is to proportionate integral clinical-molecular studies for families with hereditary colon cancer, create a national register of these diseases and investigate the molecular bases in order to generate new molecular diagnosis tools.
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