Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 38
Filtrar
1.
Acta Endocrinol (Buchar) ; 18(4): 494-501, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-37152871

RESUMO

Context: Accumulating data supports the key role of disrupted amino acids (AAs) metabolism in diabetes. Conflicting data regarding the relevance of serum AAs in diabetes and hypertension suggest that their relationship needs further investigation. Objective: To investigate serum AAs as biomarkers of increased BP variability evaluated during 24-hour ambulatory BP monitoring in the presence of type 2 diabetes. Design: Cross-sectional. Subjects and Methods: We analyzed serum AAs using targeted metabolomics (ultrahigh-performance liquid chromatography/mass spectrometry) in patients with type 2 diabetes (n=80). BP variability was assessed using 24-hour ambulatory BP monitoring. Participants were divided into two groups based on the 24-hour diastolic BP variability median value. Results: Aspartic acid, isoleucine, leucine, and phenylalanine were significantly lower, while glutamine was significantly higher in the group with higher diastolic BP variability (p-value <0.05 and variable importance in the projection >1). Corresponding pathways identified as disrupted in patients with diabetes and a higher 24-hour diastolic BP variability were phenylalanine, tyrosine, and tryptophan biosynthesis, phenylalanine metabolism, and alanine, aspartate, and glutamate metabolism (pathway impact value >0). Conclusions: We identified specific changes in serum AAs and target AAs pathways in relation to increased 24-hour diastolic BP variability in patients with type 2 diabetes.

2.
Acta Endocrinol (Buchar) ; 17(3): 393-398, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35342463

RESUMO

A 62 years old woman was diagnosed with multinodular toxic goiter and primary hyperparathyroidism/left parathyroid adenoma by hormonal assessment, ultrasound and nuclear thyroid/parathyroid scans. Cervical ultrasound illustrated a multinodular aspect of the thyroid with solid nodules and cystic-component nodules; the larger one represented a multinodular complex with necrosis areas in the left thyroid lobe, ACR TI-RADS score 4 (moderately suspicious). Functional nuclear imaging was performed for accurate differential diagnosis between thyroid vs. parathyroid localization, between cold vs. hot nodules, and eventually, for guiding the choice of a subsequent Fine-Needle Aspiration Biopsy (FNAB). Scans described an early intense 99mTc-sestaMIBI uptake with no 99mTc-pertechnetate uptake in the left thyroid lobe larger nodule. Due to the suspicion of malignancy for this nodule, we performed an additional scan (1 hour before the classical 2 hours parathyroid delayed scan). The intense uptake persists in both delayed scans suggesting no malignant phenotype and which was confirmed after surgery by benign histology. In conclusion, using a 99mTc-sestaMIBI personalized protocol, related to the radiotracer cellular uptake mechanisms: 1 hour scan (supplementary image, corresponding to the maximum uptake pattern of 99mTc-sestaMIBI for cancer cells) and 2 hours scan (for parathyroid washout evaluation) may avoid unnecessary extensive thyroid surgery.

3.
Anim Genet ; 50(5): 539-542, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31297858

RESUMO

Selection for increased litter size in swine has potentially resulted in a correlated increase in preweaning mortality. Additional selection criteria should be considered when selecting for increased litter size to account for associated decreases in piglet quality, specifically piglet survival, initial weight and growth. Traits such as gestation length (GL), which have been associated with piglet performance, could be utilized to improve piglet development and survivability. The objective of this study was to conduct a genome-wide association study to identify genomic regions associated with GL in differing parities in swine (n = 831) from the University of Nebraska-Lincoln reproductive longevity project. Gestation length was calculated as the number of days between last insemination administered and farrowing. Sows were genotyped with the Illumina SNP60 BeadArray, and the data were analyzed using Bayesian mixture models for GL at parity 1, 2, 3 and 4 (GL1, GL2, GL3 and GL4 respectively). Means (SD) for GL1-GL4 were 113 (1.4), 114 (1.2), 114 (1.3) and 115 (1.2) respectively. Posterior mean heritability estimates (PSD) for GL1, GL2, GL3 and GL4 were 0.33 (0.06), 0.34 (0.07), 0.32 (0.08) and 0.20 (0.08) respectively. Rank correlations between genomic estimated breeding values between GL1 and GL2, GL3 and GL4 respectively were moderate: 0.67, 0.65 and 0.60. The top SNP (ASGA0017859, SSC4, 7.8 Mb), located in the top common genomic region associated with GL1, GL2 and GL3, was associated with a difference of 1.1 days in GL1 between homozygote genotypes (P < 0.0001). The results of this study suggest that GL is a largely polygenic trait with relatively minor contributions from multiple genomic regions.


Assuntos
Gravidez/fisiologia , Suínos/genética , Animais , Feminino , Polimorfismo de Nucleotídeo Único , Locos de Características Quantitativas , Fatores de Tempo
4.
Acta Endocrinol (Buchar) ; 14(1): 76-84, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-31149239

RESUMO

CONTEXT: Nonalcoholic fatty liver disease (NAFLD) includes simple steatosis, steatohepatitis (NASH) which can evolve with progressive fibrosis, cirrhosis and hepatocellular carcinoma. As liver biopsy cannot be used as a screening method, noninvasive markers are needed. OBJECTIVE: The aim of this study was to test if there is a significant association between vitamin D deficit and the severity of NAFLD. DESIGN: The patients were divided into two groups (vitamin D insufficiency/deficiency) and statistical analyses were performed on the correlation of clinical and biochemical characteristics with histopathological hepatic changes. SUBJECTS AND METHODS: We prospectively studied 64 obese patients referred for bariatric surgery between 2014 and 2016 to our Surgical Unit. Anthropometric, clinical measurements, general and specific biological balance were noted. NAFLD diagnosis and activity score (NAS) were evaluated on liver biopsies. RESULTS: Increased serum fibrinogen was correlated with NASH (p=0.005) and higher NAS grade. T2DM was positively correlated with liver fibrosis (p=0.002). 84.37% of the patients had vitamin D deficit and 15.62% were vitamin D insufficient. Lobular inflammation correlated with vitamin D deficit (p=0.040). Fibrosis (p=0.050) and steatohepatitis (p=0.032) were independent predictors of low vitamin D concentration. CONCLUSIONS: Vitamin D status in conjunction with other parameters - such as T2DM - or serum biomarkers - namely fibrinogen level and PCR level - may point out the aggressive forms of NAFLD and the need for liver biopsy for appropriate management.

5.
J Anim Sci ; 95(9): 4196-4205, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28992028

RESUMO

Genetic variants associated with traits such as age at puberty and litter size could provide insight into the underlying genetic sources of variation impacting sow reproductive longevity and productivity. Genomewide characterization and gene expression profiling were used using gilts from the University of Nebraska-Lincoln swine resource population ( = 1,644) to identify genetic variants associated with age at puberty and litter size traits. From all reproductive traits studied, the largest fraction of phenotypic variation explained by the Porcine SNP60 BeadArray was for age at puberty (27.3%). In an evaluation data set, the predictive ability of all SNP from high-ranked 1-Mb windows (1 to 50%), based on genetic variance explained in training, was greater (12.3 to 36.8%) compared with the most informative SNP from these windows (6.5 to 23.7%). In the integrated data set ( = 1,644), the top 1% of the 1-Mb windows explained 6.7% of the genetic variation of age at puberty. One of the high-ranked windows detected (SSC2, 12-12.9 Mb) showed pleiotropic features, affecting both age at puberty and litter size traits. The RNA sequencing of the hypothalami arcuate nucleus uncovered 17 differentially expressed genes (adjusted < 0.05) between gilts that became pubertal early (<155 d of age) and late (>180 d of age). Twelve of the differentially expressed genes are upregulated in the late pubertal gilts. One of these genes is involved in energy homeostasis (), a function in which the arcuate nucleus plays an important contribution, linking nutrition with reproductive development. Energy restriction during the gilt development period delayed age at puberty by 7 d but increased the probability of a sow to produce up to 3 parities ( < 0.05). Identification of pleotropic functional polymorphisms may improve accuracy of genomic prediction while facilitating a reduction in sow replacement rates and addressing welfare concerns.


Assuntos
Variação Genética , Genômica , Reprodução/genética , Maturidade Sexual/genética , Suínos/genética , Animais , Feminino , Estudo de Associação Genômica Ampla/veterinária , Tamanho da Ninhada de Vivíparos/genética , Fenótipo , Gravidez , Suínos/fisiologia
7.
Anim Genet ; 47(5): 534-42, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27226276

RESUMO

High-density genotype data were analyzed in three lines of swine that express substantial variation in sow fertility to uncover regions of the genome potentially influenced during selection for litter size traits. The experimental lines examined include the Nebraska Index Line (NIL), which has been subjected to long-term selection for litter size; a control line derived from the same population that founded NIL; and a commercial Duroc × Hampshire (D × H) population, in which no selection for litter size was practiced. Regions of the genome potentially affected by selection for litter size traits in NIL were determined by multiple lines of evidence, including altered allelic frequency compared to the other lines, loss of heterozygosity and relative extended haplotype homozygosity. Additionally, a genome-wide association study for litter size traits was conducted in a population based on NIL and commercial maternal line genetics. Several genomic regions identified as putative signatures of selection overlapped with QTL for litter size traits. One of these regions, located on SSC2 (13-14 Mb), includes the candidate gene P2X3R, which plays a role in implantation and sustained release of hormones associated with reproductive processes. Sequencing identified synonymous SNPs in P2X3R that are fixed in NIL but polymorphic with nearly equal frequencies in the D × H line, indicating a potential role of P2X3R in sow fertility. These results suggest that data derived from these lines can help to uncover and understand a portion of the genetic variance associated with fertility traits in swine.


Assuntos
Frequência do Gene , Tamanho da Ninhada de Vivíparos/genética , Seleção Genética , Sus scrofa/genética , Animais , Cruzamento , Mapeamento Cromossômico , Fertilidade/genética , Estudos de Associação Genética , Genética Populacional , Genótipo , Haplótipos , Desequilíbrio de Ligação , Polimorfismo de Nucleotídeo Único , Locos de Características Quantitativas , Análise de Sequência de DNA , Sus scrofa/fisiologia
8.
Curr Health Sci J ; 42(2): 157-163, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-30568827

RESUMO

Pulmonary hypertension (PAH) represents a frequent complication in patients suffering from chronic obstructive pulmonary disease (COPD), but the impact of accelerated inflammatory status on the pulmonary vascular bed is still insufficiently studied. OBJECTIVES: The study of the PAH's prevalence in patients suffering from COPD, its severity compared with lung function and the correlation with certain clinical, biological and functional parameters. MATERIAL AND METHOD: The study was performed on a group of 64 patients, average age 53 years, 42 of whom were men (65,62%), suffering from COPD who were admitted to the Emergency County Hospital Craiova, on the II-nd Medical Clinic, within a period of 18 months. When assessing the patients their clinical state was stable, without acute exacerbations items. The control group included 61 patients suffering from other diseases without inflammatory background, who were hospitalized in clinic in the same period. All the patients included in the study were evaluated by: physical examination, thoracic radiological examination, spirometry, inflammatory syndrome, echocardiography Doppler and oximetry. RESULTS: The results of the study show a prevalence of 54.6 % PAH and a statistically significant impact of age, duration of the disease, Sa O2, inflammatory status, which was quantified in the study by ESR, serum levels of CRP and serum level of TNF alpha over the risk of developing COPD in patients suffering from PAH. CONCLUSIONS: The occurrence and the severity of PAH in patients suffering from COPD seems to be correlated with their age, duration of the disease, Sa O2 and serum levels of inflammatory markers.

9.
Curr Health Sci J ; 42(4): 365-371, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-30581591

RESUMO

INTRODUCTION: Spontaneous bacterial peritonitis (SBP) represents the most severe and common infectious complication in patients suffering from liver cirrhosis. The objectives of the study were the evaluation of the risk factors responsible for the occurrence of the spontaneous bacterial peritonitis in a group of patients suffering from liver cirrhosis, the identification of the bacterial spectrum and assessing the response to antibiotic therapy. Material and method - The studied group included 64 patients suffering from liver cirrhosis, with an episode of SBP, who were admitted to the IInd Medical Clinic of the County Hospital of Craiova, within a period of 24 months. The control group included 61 patients with liver cirrhosis with an episode of decompensation of liver disease. The diagnosis of liver cirrhosis was established by using clinical, biological and imagistic criteria, and the SBP's diagnosis was based on cytological and bacteriological analysis of the ascites fluid. Patients suffering from hepatocellular carcinoma, portal vein thrombosis and other infectious conditions were excluded. The anamnesis, the duration of the disease, the alcohol intake, the complete clinical examination, the clinical, biological and imagistic evaluation were monitored. Results and conclusions - The most frequent etiology of SBP is represented in 67% of the cases by Gram negative germs, and thus, the antibiotic therapy will be orientated against this etiological segment. In what antibiotic sensitivity is concerned, most of the germs were sensitive to third generation cephalosporins, quinolones, carbapenems and vancomycin.

11.
Chirurgia (Bucur) ; 110(6): 530-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26713827

RESUMO

INTRODUCTION: Appendicular mucocele, a cystic dilatation of the appendix, is a rare disease, but unfortunately about 1/10 of cases evolves into pseudomyxoma peritonei. METHODS: We performed a prospective study between 1 January 2010 to 31 December 2014 in order to track the incidence, symptoms, and circumstances of diagnosis, treatment and evolution of these rare tumors. RESULTS: A total of seven patients underwent curative surgery for a mucocele of the appendix: one woman and six men with an average age of 59.71 years. Clinical signs, present in two cases, were uncharacteristic. Ultrasound performed in all cases, could guide diagnosis in 5 cases. CT performed in 5 cases diagnosed only two cases. All cases were operated on: the open approach was used in four cases and a minimally invasive in three cases. We performed two right colectomies, an open appendectomy associated to anterior resection of the rectum, two laparoscopic appendectomies and two appendectomies and cecum resection with stapler, one by open approach and one by a minimally invasive approach. Intraoperative spillage of mucinous tumor did not occur in any case. The mean hospital stay was 5.7 days. Postoperative complications were present in 1 case (14.2%): wound infection. The average follow-up period was 40.28 months. (Range 6 to 48 months). No tumor recurrence or readmission, such as pseudomyxoma peritonei, has occurred. CONCLUSIONS: Appendicular mucocele is a rare entity; it can be found incidentally and it can mimic acute appendicitis, appendicular plastron or cecum tumor. Once diagnosed, surgical treatment is required for fear of perforation, tumor evolution and the emergence of the rule of complications. Laparoscopic approach in selected cases can be used, accompanied by safety measures to avoid iatrogenic perforation and peritoneal and parietal seeding.


Assuntos
Apendicectomia , Apêndice/cirurgia , Colectomia , Mucocele/cirurgia , Adulto , Idoso , Apendicectomia/efeitos adversos , Apendicectomia/métodos , Apêndice/patologia , Colectomia/efeitos adversos , Colectomia/métodos , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Incidência , Laparoscopia , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Mucocele/epidemiologia , Mucocele/patologia , Estudos Prospectivos , Fatores de Risco , Romênia/epidemiologia , Resultado do Tratamento , Infecção dos Ferimentos/epidemiologia , Infecção dos Ferimentos/etiologia
12.
Chirurgia (Bucur) ; 110(3): 294-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26158742

RESUMO

INTRODUCTION: Strumal carcinoid is a rare neoplasm of the ovary containing thyroid (struma) and carcinoid component revealed by immunohistochemistry. Case present: A 55-years-old woman with hysterectomy and right oophorectomy for uterine leiomyoma and right ovarian cyst, performed 12 years ago, was referred to the First Surgical Clinic, St. Spiridon University Hospital Iasi with pain in hypogastrium present for 2 months. Laboratory tests are normal and serum testing for tumor markers is unchanged. Ultrasound and CT finds for topography of the left ovary a well-defined 63 57 71 mm cystic mass, with a non-uniform wall thickness. Exploration laparoscopy, after adhesiolysis, identifies a cystic tumor developed in mesosigmoid which was excised and auterine tube with cystic dilatation and left ovary with intactcapsule, for which we performed left adnexectomy and extracted pieces of tumors in endobag. Evolution is simple, the patient being discharged after 3 days postoperatively. Histopathological exam and immunohistochemistry reveal edovarian strumal carcinoid and cystic lymphangioma. After one year follow up the patient is disease free. CONCLUSION: This association between an ovarian strumal carcinoid with mesosigmoidian cystic lymphangioma is unusual and rare, not cited in the literature. A laparoscopic approach for the two conditions is safe with good immediate and distant postoperative course.


Assuntos
Tumor Carcinoide/diagnóstico , Linfangioma Cístico/diagnóstico , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Ovarianas/diagnóstico , Neoplasias Retroperitoneais/diagnóstico , Tumor Carcinoide/cirurgia , Diabetes Mellitus Tipo 2/complicações , Feminino , Humanos , Hipertensão/complicações , Histerectomia , Linfangioma Cístico/cirurgia , Masculino , Pessoa de Meia-Idade , Neoplasias Primárias Múltiplas/cirurgia , Neoplasias Ovarianas/cirurgia , Ovariectomia , Doenças Raras , Reoperação , Neoplasias Retroperitoneais/cirurgia , Fatores de Risco , Resultado do Tratamento
13.
Anim Genet ; 46(4): 403-9, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26059234

RESUMO

Genomic information could be used efficiently to improve traits that are expensive to measure, sex limited or expressed late in life. This study analyzed the phenotypic variation explained by major SNPs and windows for age at puberty in gilts, an indicator of reproductive longevity. A genome-wide association study using 56, 424 SNPs explained 25.2% of the phenotypic variation in age at puberty in a training set (n = 820). All SNPs from the top 10% of 1-Mb windows explained 33.5% of the phenotypic variance compared to 47.1% explained by the most informative markers (n = 261). In an evaluation population, consisting of subsequent batches (n = 412), the predictive ability of all SNPs from the major 1-Mb windows was higher compared to the variance captured by the most informative SNP from each of these windows. The phenotypic variance explained in the evaluation population varied from 12.3% to 36.8% when all SNPs from major windows were used compared to 6.5-23.7% explained by most informative SNPs. The correlation between phenotype and genomic prediction values based on SNP effects estimated in the training population was marginal compared to their effects retrained in the evaluation population for all (0.46-0.81) or most informative SNPs (0.30-0.65) from major windows. An increase in genetic gain of 20.5% could be obtained if genomic selection included both sexes compared to females alone. The pleiotropic role of major genes such as AVPR1A could be exploited in selection of both age at puberty and reproductive longevity.


Assuntos
Polimorfismo de Nucleotídeo Único , Maturidade Sexual , Suínos/genética , Animais , Cruzamento , Feminino , Estudos de Associação Genética , Genômica , Genótipo , Modelos Lineares , Desequilíbrio de Ligação , Fenótipo , Locos de Características Quantitativas
14.
Anim Genet ; 46(4): 381-7, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26036323

RESUMO

An integral part of functional genomics studies is to assess the enrichment of specific biological terms in lists of genes found to be playing an important role in biological phenomena. Contrasting the observed frequency of annotated terms with those of the background is at the core of overrepresentation analysis (ORA). Gene Ontology (GO) is a means to consistently classify and annotate gene products and has become a mainstay in ORA. Alternatively, Medical Subject Headings (MeSH) offers a comprehensive life science vocabulary including additional categories that are not covered by GO. Although MeSH is applied predominantly in human and model organism research, its full potential in livestock genetics is yet to be explored. In this study, MeSH ORA was evaluated to discern biological properties of identified genes and contrast them with the results obtained from GO enrichment analysis. Three published datasets were employed for this purpose, representing a gene expression study in dairy cattle, the use of SNPs for genome-wide prediction in swine and the identification of genomic regions targeted by selection in horses. We found that several overrepresented MeSH annotations linked to these gene sets share similar concepts with those of GO terms. Moreover, MeSH yielded unique annotations, which are not directly provided by GO terms, suggesting that MeSH has the potential to refine and enrich the representation of biological knowledge. We demonstrated that MeSH can be regarded as another choice of annotation to draw biological inferences from genes identified via experimental analyses. When used in combination with GO terms, our results indicate that MeSH can enhance our functional interpretations for specific biological conditions or the genetic basis of complex traits in livestock species.


Assuntos
Genômica/métodos , Gado/genética , Medical Subject Headings , Terminologia como Assunto , Animais , Bovinos/genética , Cavalos/genética , Dados de Sequência Molecular , Polimorfismo de Nucleotídeo Único , Locos de Características Quantitativas , Suínos/genética
15.
Anim Genet ; 46(2): 205-8, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25643812

RESUMO

Tumor necrosis factor alpha (TNF-α) is a pro-inflammatory cytokine with a role in activating adaptive immunity to viral infections. By inhibiting the capacity of plasmacytoid dendritic cells to produce interferon-α and TNF-α, porcine circovirus 2 (PCV2) limits the maturation of myeloid dendritic cells and impairs their ability to recognize viral and bacterial antigens. Previously, we reported QTL for viremia and immune response in PCV2-infected pigs. In this study, we analyzed phenotypic and genetic relationships between TNF-α protein levels, a potential indicator of predisposition to PCV2 co-infection, and PCV2 susceptibility. Following experimental challenge with PCV2b, TNF-α reached the peak at 21 days post-infection (dpi), at which time a difference was observed between pigs that expressed extreme variation in viremia and growth (P < 0.10). A genome-wide association study (n = 297) revealed that genotypes of 56,433 SNPs explained 73.9% of the variation in TNF-α at 21 dpi. Major SNPs were identified on SSC8, SSC10 and SSC14. Haplotypes based on SNPs from a SSC8 (9 Mb) 1-Mb window were associated with variation in TNF-α (P < 0.02), IgG (P = 0.05) and IgM (P < 0.13) levels at 21 dpi. Potential overlap of regulatory mechanisms was supported by the correlations between genomic prediction values of TNF-α and PCV2 antibodies (21 dpi, r > 0.22), viremia (14-21 dpi, P > 0.29) and viral load (r = 0.31, P < 0.0001). Characterization of the QTL regions uncovered genes that could influence variation in TNF-α levels as well as T- and B-cell development, which can affect disease susceptibility.


Assuntos
Infecções por Circoviridae/veterinária , Sus scrofa/genética , Doenças dos Suínos/genética , Fator de Necrose Tumoral alfa/sangue , Animais , Anticorpos Antivirais/sangue , Infecções por Circoviridae/genética , Infecções por Circoviridae/imunologia , Circovirus , Estudo de Associação Genômica Ampla , Fenótipo , Polimorfismo de Nucleotídeo Único , Sus scrofa/imunologia , Sus scrofa/virologia , Suínos , Doenças dos Suínos/imunologia , Fator de Necrose Tumoral alfa/imunologia , Carga Viral
16.
Curr Health Sci J ; 41(1): 35-41, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-30151248

RESUMO

Chronic Obstructive Pulmonary Disease (COPD) is a clinical syndrome characterised by a slow progressive decline in expiratory airflow [1], a process that has gradually developed over the years. Studies of patients with COPD show an inflammatory process in the small airways [2]. The aim of this paper is to identify the cytopathological aspects of the liquids present in the bronchoalveolar lavage in patients with COPD. We were performed a descriptive analytical case-control and prospective study on forty patients with COPD and ten asymptomatic smokers (healthy smokers or patients at risk). The percentage of marcophage, the type of the dominant inflamatory cell, in the bronchoalveolar lavage (BAL) liquid was significantly higher at patients with mild and moderate COPD as compared to patients with severe and very severe COPD. In the present work, the percentage of the neutrophil in the BAL liquid was significantly higher at patients with severe and very severe COPD, as compared to the patients with mild and moderate COPD and to aparently healthy smokers. In conclusion, we can say that COPD is characterized by an inflammatory process located in the small airways with predominant participation of macrophages, the procentage of macrophages in BAL fluid variyng inversely proportional to the severity of the disease.

17.
Anim Genet ; 45(2): 205-14, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24444103

RESUMO

Porcine circovirus type 2 (PCV2) is the etiological agent of a group of associated diseases (PCVAD) that affect production efficiency and can lead to mortality. Using different crossbred lines of pigs, we analyzed host genetic variation of viral load, immune response and weight change following experimental infection with a PCV2b strain (n = 386). Pigs expressed variation in the magnitude and initiation of viremia and immune response recorded weekly until 28 days post-infection. A higher viral load was correlated with weight gain (r = -0.26, P < 0.0001) and presence of PCV2-specific antibodies (IgM, r = 0.26-0.34, P < 0.0001; IgG, r = 0.17-0.20, P < 0.01). In genome-wide association analyses of the responses at different time points, the proportions of phenotypic variation explained by combined effects of 56 433 SNPs were 34.8-59.4% for viremia, 10.1-59.5% for antibody response and 5.6-14.9% for weight change. Relationships between genomic prediction of overall viral load and weight gain during the first weeks of challenge were negative (-0.21 and -0.24 respectively, P < 0.0001). Individuals that carried more favorable alleles across three SNPs on SSC9 (0.60 Mb) and SSC12 (6.8 and 18.2 Mb) partially explained this relationship, having lower viral load (P < 0.0001); lower viremia at day 14 (P < 0.0001), day 21 (P < 0.01) and day 28 (P < 0.05) and greater overall average daily gain during infection (ADGi ; P < 0.01), ADGi at week 3 (P < 0.001) and week 4 (P < 0.01). These additive genetic relationships could lead to molecular solutions to improve animal health and reduce production costs.


Assuntos
Infecções por Circoviridae/veterinária , Circovirus/imunologia , Imunidade Inata/genética , Doenças dos Suínos/imunologia , Suínos/genética , Animais , Infecções por Circoviridae/imunologia , Estudos de Associação Genética , Predisposição Genética para Doença , Genótipo , Suínos/virologia , Doenças dos Suínos/genética , Carga Viral/genética
18.
Anim Genet ; 44(4): 387-97, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23437861

RESUMO

Traditional selection for sow reproductive longevity is ineffective due to low heritability and late expression of the trait. Incorporation of DNA markers into selection programs is potentially a more practical approach for improving sow lifetime productivity. Using a resource population of crossbred gilts, we explored pleiotropic sources of variation that influence age at puberty and reproductive longevity. Of the traits recorded before breeding, only age at puberty significantly affected the probability that females would produce a first parity litter. The genetic variance explained by 1-Mb windows of the sow genome, compared across traits, uncovered regions that influence both age at puberty and lifetime number of parities. Allelic variants of SNPs located on SSC5 (27-28 Mb), SSC8 (36-37 Mb) and SSC12 (1.2-2 Mb) exhibited additive effects and were associated with both early expression of puberty and a greater than average number of lifetime parities. Combined analysis of these SNPs showed that an increase in the number of favorable alleles had positive impact on reproductive longevity, increasing number of parities by up to 1.36. The region located on SSC5 harbors non-synonymous alleles in the arginine vasopressin receptor 1A (AVPR1A) gene, a G-protein-coupled receptor associated with social and reproductive behaviors in voles and humans and a candidate for the observed effects. This region is characterized by high levels of linkage disequilibrium in different lines and could be exploited in marker-assisted selection programs across populations to increase sow reproductive longevity.


Assuntos
Variação Genética , Estudo de Associação Genômica Ampla/veterinária , Receptores de Vasopressinas/genética , Reprodução/genética , Maturidade Sexual/genética , Suínos/genética , Fatores Etários , Alelos , Animais , Cruzamento , DNA Complementar/genética , Feminino , Marcadores Genéticos , Haplótipos , Desequilíbrio de Ligação , Tamanho da Ninhada de Vivíparos , Paridade , Fenótipo , Polimorfismo de Nucleotídeo Único , Gravidez
19.
Rev Med Chir Soc Med Nat Iasi ; 115(1): 45-8, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21682184

RESUMO

UNLABELLED: Research on the relationship between iodine exposure and thyroid cancer risk is limited and the findings are inconclusive. OBJECTIVES: Given this molecular data on iodine we decided to evaluate the changes of incidence and histology of thyroid cancer in the North-Eastern region of Romania (Moldavia) after the government decision from 2004 that introduced the universal iodination of alimentary salt. After this decision values of urinary iodine increased from 50 microg/L (2001-2002) to 117 microg/L (2006 -2008). MATERIAL AND METHODS: We compared the incidence and the histology of thyroid cancer in residents living in an area known as a mild endemic goiter region (Moldavia-Romania) between 2001-2004 with the incidence and the histology of thyroid cancer between 2005-2008 in the same region after the introduction of universal iodization of alimentary salt. RESULTS: The number of papillary cancers increased from 125 cases (2001-2004) to 276 cases (2005-2008). The number of follicular cancer decreased from 52 cases (2001-2004) to 27 cases (2005-2008). The ratio between papillary and follicular cancers increased from 4.80 / 1 (2001-2004) at 10.61 / 1 (2005-2008). The number of medullar thyroid carcinoma increased from six cases (2001-2004) to 24 cases (2005-2008). Thyroid anaplastic carcinomas number increased from 7 cases (2001-2004) to 12 cases (2005-2008). The total number of thyroid cancer has increased dramatically after the introduction of universal iodination of alimentary salt with 178% compared to 2001-2004 (from 190 cases in 2001-2004 to 339 cases in 2005-2008), despite the fact that the number thyroidectomies decreased from 1734 (2001-2004) to 1449 (2005-2008). CONCLUSION: After the introduction the universal iodination of alimentary salt starting from 2004 the total number of thyroid cancers increased comparative with the period before universal iodination of alimentary salt.


Assuntos
Iodo/efeitos adversos , Cloreto de Sódio na Dieta/efeitos adversos , Neoplasias da Glândula Tireoide/epidemiologia , Neoplasias da Glândula Tireoide/patologia , Adenocarcinoma Folicular/epidemiologia , Adenocarcinoma Folicular/patologia , Adenocarcinoma Papilar/epidemiologia , Adenocarcinoma Papilar/patologia , Carcinoma/epidemiologia , Carcinoma/patologia , Carcinoma Medular/epidemiologia , Carcinoma Medular/patologia , Humanos , Incidência , Iodo/administração & dosagem , Razão de Chances , Estudos Retrospectivos , Romênia/epidemiologia , Cloreto de Sódio na Dieta/administração & dosagem , Neoplasias da Glândula Tireoide/dietoterapia , Neoplasias da Glândula Tireoide/etiologia , Nódulo da Glândula Tireoide/epidemiologia , Nódulo da Glândula Tireoide/patologia , Tireoidectomia
20.
Chirurgia (Bucur) ; 105(5): 669-72, 2010.
Artigo em Romano | MEDLINE | ID: mdl-21141092

RESUMO

We try to ascertain whether total thyroidectomy with radical neck dissection offers a survival and recurrency advantage for thyroid cancer. Between January 2000 and September 2009 in the 3rd Surgical Unit of the "Sf. Spiridon" Hospital of Iasi 189 operations were performed for malign thyroid disorders, 164 (86,77%) of which were performed for the papillary or foliculary cancer. The diagnosis was confirmed by hystopathological examination. The patients had a medium age of 51,48 (extremes 19 - 81 years). Women had a greater proportion, as expected (sex ratio F:M = 2,85:1). 59 total thyroidectomy with radical or modified radical neck dissection were performed. There were immediate (6 bleedings which needed reoperation for haemostasis, 7 unilateral recurrent laryngeal nerve injury) and late complications (8 cases of recurrency in the first 2 years). Total thyroidectomy with radical neck dissection became the ellective method for advanced thyroid cancer (the best results were for papillary cancer, female and age over 55).


Assuntos
Adenocarcinoma Folicular/cirurgia , Carcinoma Papilar/cirurgia , Esvaziamento Cervical , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/métodos , Adenocarcinoma Folicular/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Papilar/patologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Esvaziamento Cervical/métodos , Estadiamento de Neoplasias , Estudos Retrospectivos , Fatores de Risco , Neoplasias da Glândula Tireoide/patologia , Tireoidectomia/efeitos adversos , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...