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1.
Animals (Basel) ; 14(9)2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38731329

ABSTRACT

This study determined whether the isomeric or isoenergetic/isoproteic substitution of corn in the diet of Jersey heifers in the rearing phase with cracker residue would impair growth and health, as well as reducing production costs. Fourteen Jersey females in the growth phase were used, separated into two treatments with seven animals in each lot in collective pens. The experiment used 7-month-old animals (169.8 ± 2.89 kg) and lasted for four months. In Experiment I, the animals were divided into two groups: treatment, with the partial replacement of 40% corn with cracker residue, and control, in which the animals consumed the same diet with 100% corn (isometric diet kg for kg). In Experiment II, the animals with a body weight of 200.2 ± 3.85 kg were divided into two groups: Treatment, replacing 100% of the corn with cracker residue, and control, in which the animals consumed an isoprotein and isoenergetic diet but with 100% of the corn in the formulation. The diet consisted of concentrate, Tifton 85 hay, and corn silage, supplied twice a day individually, with animals contained in their feeders by kennels. There was water ad libitum in the bay. Biweekly weighing and monthly blood analysis were performed, totaling four collections per part for hematologic evaluation, carbohydrate, lipid, and protein metabolism variables. At the end of each experiment, ruminal fluid was collected to measure the volatile fatty acid profile, and feces were collected to determine the apparent digestibility coefficient (ADC). Experiments I and II showed no effect of treatment on body weight, weight gain, average daily weight gain, feed intake, and feed efficiency. There was no effect of treatment on leukocyte, erythrocyte, lymphocyte, neutrophil, monocyte, and eosinophil counts, hematocrit, and hemoglobin concentration (p > 0.05). Experiment I showed a difference between groups for the variables albumin, globulin, total proteins, cholesterol, glucose, and urea, which did not happen in Experiment II. In both experiments, a higher ADC of nutrients was found in the treatment group which had cracker residue (p > 0.05). The concentration of volatile fatty acids in Experiment I was higher in the control group, unlike in Experiment II, where the highest concentration was in the treatment group (p > 0.05). Because experiment I had an isometric substitution, the diets had different bromatological composition, which is the probable cause of the difference between groups; this did not happen in experiment II, in which the diets consumed by the animals was isoproteic and isoenergetic. Based on these data we conclude that the substitution of cracker residue in an isomeric or isoenergetic/isoproteic form does not negatively affect weight gain and animal health, as well as reduces the cost of the concentrate, consequently reducing the cost of production of these animals.

2.
Trop Anim Health Prod ; 56(4): 142, 2024 Apr 25.
Article in English | MEDLINE | ID: mdl-38662082

ABSTRACT

Incorporating Curcumin into animal diets holds significant promise for enhancing both animal health and productivity, with demonstrated positive impacts on antioxidant activity, anti-microbial responses. Therefore, this study aimed to determine whether adding Curcumin to the diet of dairy calves would influence ruminal fermentation, hematologic, immunological, oxidative, and metabolism variables. Fourteen Jersey calves were divided into a control group (GCON) and a treatment group (GTRA). The animals in the GTRA received a diet containing 65.1 mg/kg of dry matter (DM) Curcumin (74% purity) for an experimental period of 90 days. Blood samples were collected on days 0, 15, 45, and 90. Serum levels of total protein and globulins were higher in the GTRA group (P < 0.05) than the GCON group. In the GTRA group, there was a reduction in pro-inflammatory cytokines (IL-1ß and IL-6) (P < 0.05) and an increase in IL-10 (which acts on anti-inflammatory responses) (P < 0.05) when compared to the GCON. There was a significantly higher (P < 0.05) concentration of immunoglobulin A (IgA) in the serum of the GTRA than the GCON. A Treatment × Day interaction was observed for haptoglobin levels, which were higher on day 90 in animals that consumed Curcumin than the GCON (P < 0.05). The catalase and superoxide dismutase activities were significantly higher (P < 0.05) in GTRA, reducing lipid peroxidation when compared to the GCONT. Hematologic variables did not differ significantly between groups. Among the metabolic variables, only urea was higher in the GTRA group when compared to the GCON. Body weight and feed efficiency did not differ between groups (meaning the percentage of apparent digestibility of dry matter, crude protein, and acid detergent fiber (ADF) and neutral detergent fiber (NDF). There was a tendency (P = 0.09) for treatment effect and a treatment x day interaction (P = 0.05) for levels of short-chain fatty acids in rumen fluid, being lower in animals that consumed curcumin. There was a treatment vs. day interaction (P < 0.05) for the concentration of acetate in the rumen fluid (i.e., on day 45, had a reduction in acetate; on day 90, values were higher in the GTRA group when compared to the GCON). We conclude that there was no evidence in the results from this preliminary trial that Curcumin in the diet of dairy calves interfered with feed digestibility. Curcumin may have potential antioxidant, anti-inflammatory, and immune effects that may be desirable for the production system of dairy calves.


Subject(s)
Animal Feed , Curcumin , Diet , Dietary Supplements , Fermentation , Rumen , Animals , Curcumin/administration & dosage , Curcumin/pharmacology , Rumen/metabolism , Rumen/drug effects , Cattle , Animal Feed/analysis , Diet/veterinary , Dietary Supplements/analysis , Oxidative Stress/drug effects , Male , Cytokines/metabolism , Weaning , Antioxidants/metabolism , Animal Nutritional Physiological Phenomena/drug effects , Female
3.
Genes (Basel) ; 15(4)2024 04 21.
Article in English | MEDLINE | ID: mdl-38674452

ABSTRACT

22q11.2 deletion syndrome (22q11.2DS) shows significant clinical heterogeneity. This study aimed to explore the association between clinical heterogeneity in 22q11.2DS and the parental origin of the deletion. The parental origin of the deletion was determined for 61 individuals with 22q11.2DS by genotyping DNA microsatellite markers and single-nucleotide polymorphisms (SNPs). Among the 61 individuals, 29 (47.5%) had a maternal origin of the deletion, and 32 (52.5%) a paternal origin. Comparison of the frequency of the main clinical features between individuals with deletions of maternal or paternal origin showed no statistically significant difference. However, Truncus arteriosus, pulmonary atresia, seizures, and scoliosis were only found in patients with deletions of maternal origin. Also, a slight difference in the frequency of other clinical features between groups of maternal or paternal origin was noted, including congenital heart disease, endocrinological alterations, and genitourinary abnormalities, all of them more common in patients with deletions of maternal origin. Although parental origin of the deletion does not seem to contribute to the phenotypic variability of most clinical signs observed in 22q11.2DS, these findings suggest that patients with deletions of maternal origin could have a more severe phenotype. Further studies with larger samples focusing on these specific features could corroborate these findings.


Subject(s)
DiGeorge Syndrome , Humans , Female , DiGeorge Syndrome/genetics , Male , Child , Adolescent , Polymorphism, Single Nucleotide , Phenotype , Child, Preschool , Adult , Chromosomes, Human, Pair 22/genetics , Infant , Young Adult
4.
CoDAS ; 36(1): e20220245, 2024. tab, graf
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1520729

ABSTRACT

RESUMO Objetivo Investigar se o escore narrativo obtido por meio da aplicação do "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" permite discriminar os grupos etários estudados, bem como sua relação com o nível de coerência global da história. Método Participaram 97 pré-escolares e escolares com desenvolvimento típico de linguagem, entre 5 e 12 anos, ambos os sexos que frequentavam escola pública. Foi aplicado o "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" e calculado o escore narrativo na dimensão macroestrutural a partir dos elementos estruturais previstos no modelo da gramática de história. Esses mesmos elementos foram usados para obter o nível de coerência global da história, segundo proposta de análise de Spinillo e Martins (1997). Resultados Diferença estatisticamente significante foi encontrada entre os grupos etários, principalmente entre as idades fronteiriças de 5-6 anos, 7-8 anos, 9-10 anos e 11-12 anos. Correlação positiva e estatisticamente significante foi encontrada com a idade e o escore narrativo e a coerência global, bem como entre o escore narrativo e o nível de coerência global. Conclusão O protocolo mostrou ser útil para identificar o repertório de elementos típicos da gramática de história na narrativa oral como uma medida objetiva que diferenciou a narrativa oral de grupos etários. Os resultados indicaram ainda que o escore narrativo pode ser uma medida norteadora do nível de coerência da história, apesar deste valor não substituir uma análise específica.


ABSTRACT Purpose To investigate if the narrative score of the ProNOH protocol allows for discriminating age groups, as well as its relation with the global coherence level of the story. The performance of preschool and schoolchildren on the macrostructure aspects. Methods Participants were 97 preschoolers and schoolchildren with typical language development, aged between five and 12 years old, and both sexes who attended public schools. The "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" (Protocol for the Evaluation of Oral Storytelling) was applied and the narrative score in the macrostructure dimension was calculated with story grammar elements. These same story elements were used to obtain the global coherence level of the story, as proposed by Spinillo and Martins (1997). Results A statistically significant difference was found between age groups, mainly between the borderline ages of 5-6 years, 7-8 years, 9-10 years, and 11-12 years. Positive and statistically significant correlations were found between the narrative score and global coherence and age, as well as between the narrative score and global coherence. Conclusion The protocol proved to be useful for identifying the repertoire of typical story grammar elements as an objective measure that differs in oral narrative across age groups. The results also indicate that the narrative score can provide an idea about the global coherence of the story, although this value does not replace a specific analysis.

5.
Codas ; 36(1): e20220245, 2023.
Article in Portuguese, English | MEDLINE | ID: mdl-37991052

ABSTRACT

PURPOSE: To investigate if the narrative score of the ProNOH protocol allows for discriminating age groups, as well as its relation with the global coherence level of the story. The performance of preschool and schoolchildren on the macrostructure aspects. METHODS: Participants were 97 preschoolers and schoolchildren with typical language development, aged between five and 12 years old, and both sexes who attended public schools. The "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" (Protocol for the Evaluation of Oral Storytelling) was applied and the narrative score in the macrostructure dimension was calculated with story grammar elements. These same story elements were used to obtain the global coherence level of the story, as proposed by Spinillo and Martins (1997). RESULTS: A statistically significant difference was found between age groups, mainly between the borderline ages of 5-6 years, 7-8 years, 9-10 years, and 11-12 years. Positive and statistically significant correlations were found between the narrative score and global coherence and age, as well as between the narrative score and global coherence. CONCLUSION: The protocol proved to be useful for identifying the repertoire of typical story grammar elements as an objective measure that differs in oral narrative across age groups. The results also indicate that the narrative score can provide an idea about the global coherence of the story, although this value does not replace a specific analysis.


OBJETIVO: Investigar se o escore narrativo obtido por meio da aplicação do "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" permite discriminar os grupos etários estudados, bem como sua relação com o nível de coerência global da história. MÉTODO: Participaram 97 pré-escolares e escolares com desenvolvimento típico de linguagem, entre 5 e 12 anos, ambos os sexos que frequentavam escola pública. Foi aplicado o "Protocolo de Avaliação da Narrativa Oral de História (ProNOH)" e calculado o escore narrativo na dimensão macroestrutural a partir dos elementos estruturais previstos no modelo da gramática de história. Esses mesmos elementos foram usados para obter o nível de coerência global da história, segundo proposta de análise de Spinillo e Martins (1997). RESULTADOS: Diferença estatisticamente significante foi encontrada entre os grupos etários, principalmente entre as idades fronteiriças de 5-6 anos, 7-8 anos, 9-10 anos e 11-12 anos. Correlação positiva e estatisticamente significante foi encontrada com a idade e o escore narrativo e a coerência global, bem como entre o escore narrativo e o nível de coerência global. CONCLUSÃO: O protocolo mostrou ser útil para identificar o repertório de elementos típicos da gramática de história na narrativa oral como uma medida objetiva que diferenciou a narrativa oral de grupos etários. Os resultados indicaram ainda que o escore narrativo pode ser uma medida norteadora do nível de coerência da história, apesar deste valor não substituir uma análise específica.


Subject(s)
Language Development , Linguistics , Male , Female , Child, Preschool , Humans , Child , Educational Status , Schools , Narration
6.
Brain Commun ; 5(3): fcad148, 2023.
Article in English | MEDLINE | ID: mdl-37229217

ABSTRACT

Alzheimer's disease is the most common form of dementia worldwide, accounting for 60-70% of diagnosed cases. According to the current understanding of molecular pathogenesis, the main hallmarks of this disease are the abnormal accumulation of amyloid plaques and neurofibrillary tangles. Therefore, biomarkers reflecting these underlying biological mechanisms are recognized as valid tools for an early diagnosis of Alzheimer's disease. Inflammatory mechanisms, such as microglial activation, are known to be involved in Alzheimer's disease onset and progression. This activated state of the microglia is associated with increased expression of the translocator protein 18 kDa. On that account, PET tracers capable of measuring this signature, such as (R)-[11C]PK11195, might be instrumental in assessing the state and evolution of Alzheimer's disease. This study aims to investigate the potential of Gray Level Co-occurrence Matrix-based textural parameters as an alternative to conventional quantification using kinetic models in (R)-[11C]PK11195 PET images. To achieve this goal, kinetic and textural parameters were computed on (R)-[11C]PK11195 PET images of 19 patients with an early diagnosis of Alzheimer's disease and 21 healthy controls and submitted separately to classification using a linear support vector machine. The classifier built using the textural parameters showed no inferior performance compared to the classical kinetic approach, yielding a slightly larger classification accuracy (accuracy of 0.7000, sensitivity of 0.6957, specificity of 0.7059 and balanced accuracy of 0.6967). In conclusion, our results support the notion that textural parameters may be an alternative to conventional quantification using kinetic models in (R)-[11C]PK11195 PET images. The proposed quantification method makes it possible to use simpler scanning procedures, which increase patient comfort and convenience. We further speculate that textural parameters may also provide an alternative to kinetic analysis in (R)-[11C]PK11195 PET neuroimaging studies involving other neurodegenerative disorders. Finally, we recognize that the potential role of this tracer is not in diagnosis but rather in the assessment and progression of the diffuse and dynamic distribution of inflammatory cell density in this disorder as a promising therapeutic target.

7.
Subst Use Misuse ; 58(2): 238-256, 2023.
Article in English | MEDLINE | ID: mdl-36510842

ABSTRACT

Background: Research has suggested that religiosity is a protective factor in alcohol use, but this is an area that could be further explored. Objective: To undertake a systematic review of the literature on drinking patterns and their relationship with religiosity and non-religiosity in adult populations. Methods: We searched for relevant studies using the PubMed, LILACS, Web of Science, Scopus, and Psych-INFO databases. This review included only studies of people aged 18 and over which had a non-religious group as a comparison measure. Results: Fifty-one studies met the inclusion criteria. The present review showed that religious people tend to have lower alcohol consumption compared to those with no religion. However, this difference appears only when religions are analyzed together without differentiating between religious affiliations (Catholicism, Buddhism, Evangelicalism, etc.). Some religious affiliations, such as Buddhism, Catholicism and Lutheranism, appear to be risk factors for alcohol consumption. Definitions of risk consumption showed high heterogeneity, ranging from eight to 21 or more doses per week, a difference of 13 doses of alcohol between studies. Conclusions: The present review showed that religious people tend to have lower alcohol consumption compared to non-religious people. However, the results are contradictory when religious affiliations are analyzed separately and compared with non-religious participants. Adequately understanding which dimensions of religiosity and non-religiosity (e.g., group processes, engagement, meaning, rules of behavior) are protective in adulthood is fundamental to the construction of more effective interventions in this age group.


Subject(s)
Alcohol Drinking , Religion , Humans , Adult , Adolescent , Risk Factors , Health Behavior
8.
An Acad Bras Cienc ; 93(1): e20190406, 2021.
Article in English | MEDLINE | ID: mdl-33909817

ABSTRACT

Besides increasing the amount of data that can be used in a fitting process, the Regional Frequency Analysis (RFA) also assesses the quality of weather station networks. This technique assumes that it is possible to form homogeneous groups of meteorological series presenting independent and identically distributed data. Based on the hypothesis that such homogeneous groups can be formed under tropical-subtropical conditions, this study applied the RFA to assess the probability of one-day annual maximum rainfall in the State of São Paulo, Brazil. Critical limits used in previous studies to declare a region/group as 'acceptable homogeneous' (H≤1.00) or to select a distribution (|Z|≤1.64) were evaluated through Monte Carlo simulations. While the limit H≤1 is appropriate, the limit |Z|≤1.64 may lead to unacceptably high rates of rejecting a true null hypothesis. This statement is particularly true for the general logistic distribution. A computational algorithm allowing the selection of critical limits corresponding to pre-specified probabilities of rejecting a true null hypothesis is provided. Considering the new critical limits, data from one of the largest weather station networks of the State have been pooled into four homogeneous groups. Both generalized logistic and extreme value distributions are recommended for the probabilistic assessment of such groups.


Subject(s)
Weather , Brazil , Monte Carlo Method , Probability
9.
Congenit Anom (Kyoto) ; 61(5): 148-158, 2021 Sep.
Article in English | MEDLINE | ID: mdl-33900643

ABSTRACT

This study aims to discuss diagnostic criteria and severity assessment for craniofacial microsomia (CFM). A series of 61 patients with diverse CFM phenotypes had their clinical data collected by experienced dysmorphologists using a single protocol. Genetic abnormalities were searched through karyotype and chromosomal microarray analysis. Sex ratio, prenatal risk factors, and recurrence rate corroborated the literature. Despite the wide variability of clinical findings, ear disruption was universal. Eight patients were assigned as syndromic, four of whom had demonstrable genetic alterations. The majority of patients (67.2%) fulfilled four known diagnostic criteria, while 9.8% fulfilled one of them. Data strengthened disruptions of the ear and deafness as a semiotically valuable sign in CFM. Facial impairment should consider asymmetry as a mild expression of microsomia. Spinal and cardiac anomalies, microcephaly, and developmental delay were prevalent among extra craniofacial features and should be screened before planning treatment and follow up. The severity index was able to recognize the less and the most affected patients. However, it was not useful to support therapeutic decisions and prognosis in the clinical scenario due to syndromic and non-syndromic phenotypes overlapping. These issues make contemporary the debate on diagnostic methods and disease severity assessment for CFM. They also impact care and etiopathogenetic studies.


Subject(s)
Goldenhar Syndrome , Heart Defects, Congenital , Microcephaly , Face , Goldenhar Syndrome/diagnosis , Goldenhar Syndrome/genetics , Humans , Spine
10.
J Environ Manage ; 263: 110392, 2020 Jun 01.
Article in English | MEDLINE | ID: mdl-32174531

ABSTRACT

The southwest Brazilian Amazon state of Rondônia has a relatively recent non-indigenous occupation, which subsequently develops a variety of human pressures and conflicts of interest presently identified in the region. Given such framework, it is worthwhile to note that there are 57 Conservation Units that must guarantee the biodiversity protection of Amazonia biome. However, due to the need for electricity and the international high demand for minerals, the highlighted scenario has dramatically changed in recent years. Official data from mining processes in the studied area demonstrated the existence of high interest for minerals, especially cassiterite and gold. Mining is indeed an essential activity for the nation mainly due to the generation of jobs and income. On the other hand, it produces several environmental and social impacts that vary accordingly to the peculiarities of the mining and with respect to the type of ore. Therefore, this research work investigated the concentration of mining projects in the state of Rondônia and complementarily evaluated the impact of such activities on areas of environmental protection. Landsat 8 OLI imageries were employed to map the diversity of land covers across the study area and also to evaluate the corresponding impact of mining activities. More than 500 processes have been identified within the Conservation Units. A significant part of the mining areas, covering about 26 km2, was observed inside one of the three types of evaluated areas (Integral Protection Sustainable Use Conservation Units and Damping Zone), clearly showing the development of the illegal activity, as defined in terms of the National System of Conservation Units. If deforestation is considered in this analysis, the area increases to about 6110 km2, representing more than 5.2% of the Conservation Units. In addition, we proposed the creation of the Mining Pressure Index (MPI), which allows classifying a Conservation Unit by the degree of pressure from mining activities. The proposed index revealed to be very efficient since it predicted high values over Conservation Units where it was expected a greater vulnerability. The index is a promising tool for public policy formulation and management of protected areas, as well as for enforcement action. The results provide a new horizon in terms of the perspective of importance and applicability of geotechnologies in the evaluation of environmental impacts, not restricted to mining activity.


Subject(s)
Geographic Information Systems , Remote Sensing Technology , Biodiversity , Brazil , Conservation of Natural Resources , Humans , Mining
11.
J Alzheimers Dis ; 52(4): 1209-14, 2016 04 18.
Article in English | MEDLINE | ID: mdl-27104908

ABSTRACT

Amyloid-ß protein precursor (AßPP) is involved in synaptic formation and function. In the human cingulate cortex, AßPP was preferentially located in the presynaptic active zone as in rodents, indicating a preserved subsynaptic AßPP distribution across species and brain regions. Synaptic AßPP immunoreactivity was decreased with aging in cortical samples collected from autopsies of males (20-80 years), whereas the synaptic levels of α-secretase (ADAM10) and ß-secretase (BACE1) did not significantly change. Decreased AßPP levels may be related to lower allostasis of synapses in the aged brain and their greater susceptibility to dysfunction characteristic of the onset of neurodegenerative disorders.


Subject(s)
Amyloid Precursor Protein Secretases/analysis , Amyloid beta-Protein Precursor/analysis , Cerebral Cortex/chemistry , Synapses/chemistry , Adult , Age Factors , Aged , Aged, 80 and over , Amyloid Precursor Protein Secretases/metabolism , Amyloid beta-Protein Precursor/metabolism , Humans , Male , Middle Aged , Young Adult
12.
Arch Endocrinol Metab ; 60(1): 66-75, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26909485

ABSTRACT

Thyroglobulin (Tg) is the major glycoprotein produced by the thyroid gland, where it serves as a template for thyroid hormone synthesis and as an intraglandular store of iodine. Measurement of Tg levels in serum is of great practical importance in the follow-up of differentiated thyroid carcinoma (DTC), a setting in which elevated levels after total thyroidectomy are indicative of residual or recurrent disease. The most recent methods for serum Tg measurement are monoclonal antibody-based and are highly sensitive. However, major challenges remain regarding the interpretation of the results obtained with these immunometric methods, particularly in patients with endogenous antithyroglobulin antibodies or in the presence of heterophile antibodies, which may produce falsely low or high Tg values, respectively. The increased prevalence of antithyroglobulin antibodies in patients with DTC, as compared with the general population, raises the very pertinent possibility that tumor Tg may be more immunogenic. This inference makes sense, as the tumor microenvironment (tumor cells plus normal host cells) is characterized by several changes that could induce posttranslational modification of many proteins, including Tg. Attempts to understand the structure of Tg have been made for several decades, but findings have generally been incomplete due to technical hindrances to analysis of such a large protein (660 kDa). This review article will explore the complex structure of Tg and the potential role of its marked heterogeneity in our understanding of normal thyroid biology and neoplastic processes.


Subject(s)
Protein Processing, Post-Translational , Thyroglobulin/metabolism , Thyroid Diseases , Biomarkers, Tumor/blood , Glycosylation , Halogenation , Humans , Phosphorylation , Thyroglobulin/chemistry , Thyroid Diseases/blood , Thyroid Diseases/diagnosis , Thyroid Diseases/etiology , Thyroid Diseases/prevention & control , Thyroid Hormones/biosynthesis
13.
Arch. endocrinol. metab. (Online) ; 60(1): 66-75, Feb. 2016. graf
Article in English | LILACS | ID: lil-774616

ABSTRACT

ABSTRACT Thyroglobulin (Tg) is the major glycoprotein produced by the thyroid gland, where it serves as a template for thyroid hormone synthesis and as an intraglandular store of iodine. Measurement of Tg levels in serum is of great practical importance in the follow-up of differentiated thyroid carcinoma (DTC), a setting in which elevated levels after total thyroidectomy are indicative of residual or recurrent disease. The most recent methods for serum Tg measurement are monoclonal antibody-based and are highly sensitive. However, major challenges remain regarding the interpretation of the results obtained with these immunometric methods, particularly in patients with endogenous antithyroglobulin antibodies or in the presence of heterophile antibodies, which may produce falsely low or high Tg values, respectively. The increased prevalence of antithyroglobulin antibodies in patients with DTC, as compared with the general population, raises the very pertinent possibility that tumor Tg may be more immunogenic. This inference makes sense, as the tumor microenvironment (tumor cells plus normal host cells) is characterized by several changes that could induce posttranslational modification of many proteins, including Tg. Attempts to understand the structure of Tg have been made for several decades, but findings have generally been incomplete due to technical hindrances to analysis of such a large protein (660 kDa). This review article will explore the complex structure of Tg and the potential role of its marked heterogeneity in our understanding of normal thyroid biology and neoplastic processes.


Subject(s)
Humans , Protein Processing, Post-Translational , Thyroid Diseases , Thyroglobulin/metabolism , Biomarkers, Tumor/blood , Glycosylation , Halogenation , Phosphorylation , Thyroglobulin/chemistry , Thyroid Diseases/blood , Thyroid Diseases/diagnosis , Thyroid Diseases/etiology , Thyroid Diseases/prevention & control , Thyroid Hormones/biosynthesis
14.
J Craniomaxillofac Surg ; 44(1): 16-20, 2016 Jan.
Article in English | MEDLINE | ID: mdl-26602496

ABSTRACT

PURPOSE: The aim of this study was to use the TaqMan OpenArray system to evaluate associations between 39 genes and the etiology of nonsyndromic cleft lip and palate (NSCLP) in a Brazilian population. MATERIAL AND METHODS: This case-control association study was designed with 80.11% statistical power according to logistic regression (GPOWER software). The case group had 182 patients with NSCLP enrolled in the Brazilian Database on Orofacial Clefts. The controls included 355 healthy individuals with no history of oral clefting in the past three generations. All samples were genotyped for 253 tag single nucleotide polymorphisms (tagSNPs) in 39 genes, including two that had recently been associated with this process. The association analysis was performed using logistic regression and stepwise regression. The results were corrected for multiple testing [Bonferroni correction and False Discovery Rate (FDR)]. RESULTS: Twenty-four SNPs in 16 genes were significantly associated with the etiology of NSCLP, including MSX1, SPRY1, MSX2, PRSS35, TFAP2A, SHH, VAX1, TBX10, WNT11, PAX9, BMP4, JAG2, AXIN2, DVL2, KIF7, and TCBE3. Stepwise regression analysis revealed that 11 genes contributed to 15.5% of the etiology of NSCLP in the sample. CONCLUSION: This is the first study to associate KIF7 and TCEB3 with the etiology of NSCLP. New technological approaches using the same design should help to identify further etiological susceptibility variants.


Subject(s)
Cleft Lip/genetics , Cleft Palate/genetics , Polymorphism, Single Nucleotide , Brazil , Case-Control Studies , Elongin , Female , Humans , Kinesins/genetics , Male , Transcription Factors/genetics
15.
Am J Med Genet A ; 167A(1): 215-20, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25358462

ABSTRACT

The 22q11 chromosomal region contains low copy repeats (LCRs) sequences that mediate non-allelic homologous recombination, which predisposes to copy number variations (CNVs) at this locus. Hemizygous deletions of the proximal 22q11.2 region result in the 22q11.2 deletion syndrome (22q11.2 DS). In addition, 22q11.2 duplications involving the distal LCR22s have been reported. This article describes a patient presenting a 2.5-Mb de novo deletion at proximal 22q11.21 region (between LCRs A-D), combined with a 1.3-Mb maternally inherited duplication at distal 22q11.23 region (between LCRs F-H). The presence of concomitant chromosomal imbalances found in this patient has not been reported previously. Clinical and molecular data were compared with literature, in order to contribute to genotype-phenotype correlation. These findings exemplify the complexity and genetic heterogeneity observed in 22q11.2 deletion syndrome and highlights the difficulty to make genetic counseling and predict phenotypic consequences in these situations.


Subject(s)
Abnormalities, Multiple/genetics , Chromosome Duplication/genetics , DiGeorge Syndrome/complications , DiGeorge Syndrome/genetics , Adult , Child , Chromosomes, Human, Pair 22/genetics , Facies , Female , Genetic Association Studies , Humans , Male
16.
BMJ Case Rep ; 20132013 Jun 03.
Article in English | MEDLINE | ID: mdl-23737584

ABSTRACT

The conventional treatment of functioning adrenal adenomas is laparoscopic resection. Since the 1990s, radiofrequency ablation has been increasingly applied to the treatment of tumours of the liver, lungs and musculoskeletal system. However, the use of radiofrequency ablation to treat adrenal nodules is still an uncommon procedure, particularly in aldosterone-producing adenomas. We report the case of a 35-year-old male patient with resistant hypertension, hypokalaemia and aldosterone-producing adenoma in a single adrenal gland. The patient underwent CT-guided percutaneous radiofrequency ablation. Clinical, laboratory and MRI follow-up data indicated excellent response to treatment. This case report is the first in the literature to describe the use of CT-guided percutaneous radiofrequency ablation in the treatment of a functioning adrenal adenoma in a patient with a single adrenal gland.


Subject(s)
Adenoma/radiotherapy , Adrenal Gland Neoplasms/radiotherapy , Catheter Ablation/methods , Adenoma/diagnosis , Adenoma/diagnostic imaging , Adrenal Gland Neoplasms/diagnosis , Adrenal Gland Neoplasms/diagnostic imaging , Adult , Humans , Male , Tomography, X-Ray Computed
17.
Abdom Imaging ; 38(5): 1130-5, 2013 Oct.
Article in English | MEDLINE | ID: mdl-23589076

ABSTRACT

PURPOSE: Percutaneous ablation of functioning adrenal adenomas has been an alternative to videolaparoscopic treatment. This study aimed to evaluate the feasibility, safety and efficacy of radiofrequency ablation (RFA) in the treatment of functioning adrenal tumors using a computed tomography (CT)-guided percutaneous technique as demonstrated by our experience and the literature. METHODS: Eleven adult patients (mean age 46 years) with a diagnosis of functioning adrenal adenoma underwent CT-guided RFA between October 2011 and August 2012. All RFA procedures were performed using a needle electrode with a single lateral filament and the RITA(®) 1500X radiofrequency generator. The RFA protocol consisted of two cycles of 5 min each with 1-min interval, with no additional ablation cycles. Contrast-enhanced CT scans were obtained and analyzed for immediate treatment success and possible complications. RESULTS: Maximum tumor dimension ranged from 1.2 to 3.4 cm. The mean procedure time was 74 min, and length of hospital stay ranged from 0.9 to 3.2 days (mean 1.8 days). One patient had residual pneumothorax and one patient had neuritis involving the T10 dermatome. Of 11 patients, 10 recovered from their condition. Only one patient remained with hyperaldosteronism, but with reduced anti-hypertensive medication. CONCLUSIONS: CT-guided percutaneous RFA was a safe and effective treatment for functioning adrenal adenomas, with short hospital length of stay and low complication rate.


Subject(s)
Adrenal Gland Neoplasms/diagnostic imaging , Adrenal Gland Neoplasms/surgery , Adrenocortical Adenoma/diagnostic imaging , Adrenocortical Adenoma/surgery , Catheter Ablation/methods , Tomography, X-Ray Computed , Contrast Media , Female , Humans , Length of Stay/statistics & numerical data , Male , Middle Aged , Radiography, Interventional , Treatment Outcome
18.
Cleft Palate Craniofac J ; 50(5): 577-90, 2013 Sep.
Article in English | MEDLINE | ID: mdl-23551075

ABSTRACT

Objective : To verify feeding resources used prior to corrective surgery among cleft babies from Brazil and to discuss suggestions to improve common feeding problems around the world. Design : Cross-sectional descriptive study conducted at eight medical centers. Participants : A total of 215 parents or guardians of cleft children. Methods : Interview based upon a prevalidated questionnaire. The chi-square test and comparison of means by analysis of variance were used; significance level adopted was 5% (P < .05). Results : Feeding guidelines were provided in the maternity unit to 53% of the families. Breast-feeding was encouraged among 80% of mothers, predominantly in the South (P = .016). However, follow-up after maternity discharge was not appropriately carried out and failure to breast-feed occurred in 78% of families. The feeding tube was used in 21%. According to families, for those who used the ordinary nipple, it was considered the best option by the majority (29%). Conclusion : Neonatal feeding in cleft babies is a global challenge. Reports about the difficulties encountered and successful experiences would be helpful to disseminate strategies and stimulate research directed at the large-scale applicability of neonatal feeding for cleft babies on public health. This study detected the need to increase professional training and emphasizes the need for public policies addressing neonatal referral to specialized care wherever possible. It also stimulates research into using an ordinary nipple as another resource for feeding cleft babies and suggests an international discussion about specific recommendations for humanized primary health care.


Subject(s)
Cleft Lip , Cleft Palate , Brazil , Cross-Sectional Studies , Health Policy , Humans , Infant
19.
J. pediatr. (Rio J.) ; 87(3): 225-230, maio-jun. 2011. tab
Article in Portuguese | LILACS | ID: lil-593188

ABSTRACT

OBJETIVO: Determinar a época do diagnóstico de fendas orofaciais típicas em diferentes regiões brasileiras e sua influência na idade da correção cirúrgica. MÉTODO: Estudo prospectivo, descritivo e transversal realizado em centros médicos do Sudeste, Sul e Nordeste do Brasil. Fonoaudiólogos e geneticistas treinados realizaram entrevista, previamente validada, com pais de crianças afetadas. Utilizaram-se os programas Epi-Info e SPSS. Adotou-se nível de significância de 5 por cento (p < 0,05). RESULTADOS: A amostra contou com 215 entrevistas para análise: 21,9 por cento (47) aplicadas no Sudeste, 51,1 por cento (110) no Sul e 27 por cento (58) no Nordeste. A renda mensal no Sudeste foi maior (p < 0,05). A fenda labiopalatal foi encontrada em 61,4 por cento (132) dos casos, a palatal, em 20,9 por cento (45), e a labial, em 17,7 por cento (38). Em 75,3 por cento (162) dos casos, o diagnóstico ocorreu na maternidade, em 14 por cento (30), no pré-natal e, em 10,2 por cento (22), após a alta da maternidade. O Sudeste apresentou maior frequência de diagnóstico pré-natal (27,7 por cento), possivelmente relacionada ao maior poder aquisitivo e a oportunidades de investigação. Dos diagnósticos em maternidades, 74,4 por cento ocorreram no Nordeste. Entretanto, não houve diferença na comparação entre época de diagnóstico, região e idade da primeira cirurgia. CONCLUSÃO: Considerando que o diagnóstico é mais frequente em maternidades, sugere-se o treinamento das equipes de saúde desses locais, visando efetiva coordenação do atendimento inicial. Apesar da época do diagnóstico não influenciar a idade das cirurgias, ela favorece o planejamento dos cuidados neonatais e terapêuticos dos afetados.


OBJECTIVE: To determine the time of diagnosis of typical orofacial clefts in different Brazilian regions and its influence on age at surgical correction. METHOD: This was a prospective, descriptive, cross-sectional study conducted in medical centers in the Southeast, South, and Northeast of Brazil. Trained speech therapists and geneticists interviewed the parents of affected children using a previously validated questionnaire. Epi-Info and SPSS were used for data analysis. Significance level was set at 5 percent (p < 0.05). RESULTS: The sample consisted of 215 interviews conducted in the following regions: 21.9 percent (47) in the Southeast, 51.1 percent (110) in the South, and 27 percent (58) in the Northeast. Monthly family income was higher in the Southeast (p < 0.05). Cleft lip and palate were found in 61.4 percent (132) of cases, cleft palate in 20.9 percent (45), and cleft lip in 17.7 percent (38). Diagnosis occurred in the maternity ward in 75.3 percent (162) of cases, during the prenatal period in 14 percent (30), and after hospital discharge in 10.2 percent (22). The Southeast had a higher frequency of prenatal diagnosis (27.7 percent), possibly related to greater purchasing power in this region and greater availability of prenatal investigation. Of all cases diagnosed in the maternity ward, 74.4 percent occurred in the Northeast. However, no significant difference was found when comparing time of diagnosis, region, and age at first surgery. CONCLUSION: Considering that diagnosis is more common in the maternity ward, local health care teams should be trained in order to effectively improve the initial care of these patients. Although time of diagnosis did not affect age at surgery, it favors the planning of neonatal care and treatment of affected infants.


Subject(s)
Child , Child, Preschool , Female , Humans , Male , Cleft Lip/diagnosis , Cleft Palate/diagnosis , Hospitals, Maternity/statistics & numerical data , Brazil/epidemiology , Cleft Lip/epidemiology , Cleft Palate/epidemiology , Epidemiologic Methods , Patient Discharge/statistics & numerical data , Prenatal Diagnosis/statistics & numerical data , Socioeconomic Factors , Time Factors
20.
J Pediatr (Rio J) ; 87(3): 225-30, 2011.
Article in English, Portuguese | MEDLINE | ID: mdl-21528156

ABSTRACT

OBJECTIVE: To determine the time of diagnosis of typical orofacial clefts in different Brazilian regions and its influence on age at surgical correction. METHOD: This was a prospective, descriptive, cross-sectional study conducted in medical centers in the Southeast, South, and Northeast of Brazil. Trained speech therapists and geneticists interviewed the parents of affected children using a previously validated questionnaire. Epi-Info and SPSS were used for data analysis. Significance level was set at 5% (p ≤ 0.05). RESULTS: The sample consisted of 215 interviews conducted in the following regions: 21.9% (47) in the Southeast, 51.1% (110) in the South, and 27% (58) in the Northeast. Monthly family income was higher in the Southeast (p ≤ 0.05). Cleft lip and palate were found in 61.4% (132) of cases, cleft palate in 20.9% (45), and cleft lip in 17.7% (38). Diagnosis occurred in the maternity ward in 75.3% (162) of cases, during the prenatal period in 14% (30), and after hospital discharge in 10.2% (22). The Southeast had a higher frequency of prenatal diagnosis (27.7%), possibly related to greater purchasing power in this region and greater availability of prenatal investigation. Of all cases diagnosed in the maternity ward, 74.4% occurred in the Northeast. However, no significant difference was found when comparing time of diagnosis, region, and age at first surgery. CONCLUSION: Considering that diagnosis is more common in the maternity ward, local health care teams should be trained in order to effectively improve the initial care of these patients. Although time of diagnosis did not affect age at surgery, it favors the planning of neonatal care and treatment of affected infants.


Subject(s)
Cleft Lip/diagnosis , Cleft Palate/diagnosis , Hospitals, Maternity/statistics & numerical data , Brazil/epidemiology , Child , Child, Preschool , Cleft Lip/epidemiology , Cleft Palate/epidemiology , Epidemiologic Methods , Female , Humans , Male , Patient Discharge/statistics & numerical data , Prenatal Diagnosis/statistics & numerical data , Socioeconomic Factors , Time Factors
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