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1.
Article in Portuguese | PAHO-IRIS | ID: phr-60460

ABSTRACT

[RESUMO]. Objetivo. Calcular o indicador de consumo de álcool per capita (APC) para o Brasil utilizando dados nacio nais (APC Brasil), com vistas a estabelecê-lo como padrão ouro para o país em substituição ao indicador anteriormente calculado pela Organização Mundial da Saúde (OMS) com base em dados internacionais. Métodos. Foram selecionadas, no Brasil, as fontes públicas de dados necessárias para a composição do cálculo do APC registrado e definida a concentração alcoólica por categoria de bebida. Para as variáveis APC turista e APC não registrado, indisponíveis no Brasil, foram usadas as estimativas da Organização das Nações Unidas (ONU) e da OMS. O indicador APC Brasil foi calculado e comparado ao indicador produzido pela OMS por meio de análise das medianas para o período de 2005 a 2020. Resultados. O indicador de consumo de álcool nacional foi de 9,2 litros per capita em 2005, chegando a 9,8 em 2020. Já o indicador da OMS mostrou, para 2005, um consumo de 8,4 litros per capita, com queda até 2016 e leve aumento para 7,8 em 2020. Conclusão. O APC Brasil foi calculado com base em fontes nacionais e mostrou tendência distinta em relação ao indicador da OMS, que se mostrou em queda. A disponibilização transparente e regular desse indicador por canais governamentais permitirá o seu monitoramento, possibilitando a elaboração de políticas para o enfrentamento do consumo do álcool no país.


[ABSTRACT]. Objective. To calculate the alcohol per capita consumption (APC) in Brazil (Brazil APC) using national data and to establish the Brazil APC as gold standard for the country, replacing the indicator previously calculated by the World Health Organization (WHO) based on international data. Method. The Brazilian public data sources necessary for calculating the recorded APC were selected, and the alcohol concentration was defined by beverage category. For the variables of tourist APC and unrecorded APC, which are unavailable in Brazil, estimates from the United Nations (UN) and the WHO were used. The Brazil APC indicator was calculated and compared to the indicator produced by the WHO through analysis of the medians obtained for the period from 2005 to 2020. Results. The national alcohol consumption indicator was 9.2 liters per capita in 2005, reaching 9.8 in 2020. The WHO indicator showed a consumption of 8.4 liters per capita in 2005, decreasing until 2016 and slightly increasing to 7.8 in 2020. Conclusion. The Brazil APC was calculated based on national sources and showed a distinct trend compared to the WHO indicator, which showed a decrease. The regular and transparent provision of this indicator through government channels will support the development of policies to address alcohol consumption in the country.


[RESUMEN]. Objetivo. Calcular el indicador del consumo de alcohol per cápita en Brasil a partir de datos nacionales, con miras a establecerlo como patrón de referencia para el país en sustitución del indicador calculado anteriormente por la Organización Mundial de la Salud a partir de datos internacionales. Métodos. Se seleccionaron las fuentes públicas de datos de Brasil necesarias para estructurar el cálculo del consumo de alcohol per cápita registrado y se definió la concentración de alcohol por clase de bebida. Para las variables de consumo de alcohol per cápita por parte de turistas y consumo per cápita no registrado, que no están disponibles en Brasil, se utilizaron estimaciones de las Naciones Unidas y de la Organización Mundial de la Salud. Se calculó el indicador del consumo de alcohol per cápita en Brasil y se comparó con el indicador elaborado por la OMS mediante un análisis de las medianas correspondientes al período 2005-2020. Resultados. El indicador nacional del consumo de alcohol fue de 9,2 litros per cápita en el 2005, con un aumento a 9,8 en el 2020. El indicador de la Organización Mundial de la Salud mostró un consumo de 8,4 litros per cápita en el 2005, con una reducción hasta el 2016 y un leve aumento a 7,8 en el 2020. Conclusión. Se calculó el consumo de alcohol per cápita en Brasil a partir de fuentes nacionales, lo que mostró una tendencia distinta de la tendencia descendente del indicador de la Organización Mundial de la Salud. La disponibilidad transparente y regular de este indicador por medio de los canales gubernamentales permitirá su seguimiento, con lo cual se podrán formular políticas para enfrentar el consumo de alcohol en el país.


Subject(s)
Alcoholic Beverages , Sustainable Development , Health Status Indicators , Public Health Surveillance , Brazil , Alcoholic Beverages , Sustainable Development , Health Status Indicators , Public Health Surveillance , Brazil , Alcoholic Beverages , Sustainable Development , Health Status Indicators , Public Health Surveillance
2.
Parasit Vectors ; 17(1): 120, 2024 Mar 10.
Article in English | MEDLINE | ID: mdl-38461304

ABSTRACT

BACKGROUND: In 2022, fluralaner was launched on the market for use in the control of the cattle tick Rhipicephalus microplus after showing 100% efficacy in registration trials against the causative agents of cattle tick fever (TFAs). The aim of the present study was to determine whether a strategic control regimen against R. microplus using fluralaner (FLU) in Holstein calves grazing in a tropical region would alter the enzootic stability status of cattle tick fever, triggering outbreaks in these animals up to 22 months age. METHODS: In this study, a group of calves treated with FLU was compared with a control group treated with the regimen currently being used on the farm, which consisted of the fipronil + fluazuron formulation (FIFLUA). In the first experiment, the efficacy of the FIFLUA pour-on formulation was evaluated in a field study. In the second experiment, which lasted 550 days, two experimental groups (n = 30/group) of Holstein calves naturally infested with R. microplus were analyzed. Calves aged 4 to 10 months received either a specific treatment regimen with FLU (experimental group) or FIFLUA (control group). During this period, tick counts, animal weight measurement, feces collection (to determine eggs and oocysts per gram of feces), tick fever monitoring, blood smears (to ascertain enzootic stability of the herd), PCR testing for TFAs and serology (indirect enzyme-linked immunosorbent assay [iELISA]) were performed. All calves were evaluated for signs of tick fever between ages 11 and 22 months. RESULTS: FIFLUA showed an acaricidal efficacy of > 90% from post-treatment days 14 to 35. Regarding treatments against the TFAs, the average number of treatments was similar between groups, but animals treated with FLU had a smaller reduction in packed cell volume on some of the evaluation dates of the second and third treatment against TFAs. In calves aged 10 months in the FLU group, B. bovis was not detected by PCR (0/15 samples), 40% of the samples had antibody titers and 33% (10/30) of the samples had positive blood smears. Regarding B. bigemina, > 86% of the samples in both groups tested positive for B. bigemina DNA and antibodies; there was no difference in the antibody titers between the groups. There were no clinical cases of cattle tick fever in calves aged 11 to 22 months. CONCLUSIONS: In comparison with the control treatment, the strategic control regimen against R. microplus with FLU that was implemented in the present study did not negatively affect the enzootic stability status of A. marginale and B. bigemina in the herd up to 22 months of age. The enzootic stability status of B. bovis was not reached by either group. These results likely represent a characteristic of the local tick population, so further studies should be performed.


Subject(s)
Anaplasmosis , Babesiosis , Cattle Diseases , Isoxazoles , Rhipicephalus , Tick Infestations , Animals , Cattle , Tick Control , Tick Infestations/drug therapy , Tick Infestations/prevention & control , Tick Infestations/veterinary , Cattle Diseases/epidemiology , Ovum , Babesiosis/epidemiology , Anaplasmosis/epidemiology
3.
Parasitol Res ; 123(1): 96, 2024 Jan 15.
Article in English | MEDLINE | ID: mdl-38224369

ABSTRACT

This work investigated the mechanical transmission of Trypanosoma vivax by Stomoxys calcitrans to cattle in a region without a cyclic vector. The study involved two experiments, one with calves experimentally infected with T. vivax, in the acute phase of trypanosomosis (Experiment 1) and the other in the chronic phase (Experiment 2). In both experiments, two transmission methods were used with flies that had not fed for 24 h or had never fed: (i) Method 1: flies released freely in cattle pens (≈3,300 flies/pen for 10 days); and (ii) Method 2: flies placed in a feeding chamber (12 flies/animal). To develop Method 1 in the two experiments (acute and chronic phases), T. vivax-positive animals were kept with T. vivax-negative animals. Periodically, the Brener method, Woo method, blood smears, cPCR, ELISA, IFAT, and Imunoteste® were performed to detect T. vivax in the animals. We also recorded the animals' head tossing and hoof stomping and the number of flies near the pens' inner walls. Subsequently, biological testing was performed using lambs. For Method 2 in both experiments, flies inside the feeding chamber first fed on T. vivax-positive animals and later on negative animals. In both experiments and methods, we examined the flies for the presence of T. vivax through blood smears and cPCR of the proboscis and abdomen. In Experiment 2 (chronic phase), a test was conducted to determine how long trypomastigotes forms could survive on the blood of animals with different levels of parasitemia. None of the animals (calves and lambs) became infected with T. vivax or showed antibodies against it. During the evaluation period, the animals in the presence of the flies exhibited more hoof stomping and head tossing compared to those without flies (control). Additionally, there was an increase in the number of flies in the pens during the experiment. Only in Experiment 1 (acute phase) were T. vivax trypomastigotes and DNA found in the abdomen of the flies but not in the proboscis. In Experiment 2 (chronic phase), higher concentrations of trypomastigotes per milliliter of blood were associated with a shorter the lifespan of this stage of the parasite. In conclusion, under the variable conditions of the experiments (hosts, number of flies, and level of parasitemia), S. calcitrans was unable to mechanically transmit T. vivax to cattle.


Subject(s)
Muscidae , Animals , Sheep , Cattle , Trypanosoma vivax , Parasitemia , Sheep, Domestic , Antibodies
4.
Animals (Basel) ; 13(11)2023 Jun 01.
Article in English | MEDLINE | ID: mdl-37889695

ABSTRACT

There are, in the literature, distinct ways to approach animal welfare. The objective of this work was to study the value attributed to farm animals in the scientific papers published in animal welfare and animal production journals at three different points in time, separated by a decade each. The first ten papers mentioning "animal welfare" or "animal well-being" in their objectives or hypotheses from each journal and each focus year were selected. The 180 papers were blindly scored by five assessors between 1 and 10, according to the degree of intrinsic value attributed to animals. The overall mean score and standard deviation were 5.60 ± 2.49, with 6.46 ± 2.29 and 4.74 ± 2.40 for AW and AP journals, respectively, and 5.37 ± 2.44, 5.68 ± 2.52 and 5.75 ± 2.41 for the focus years of 2000, 2010 and 2020, respectively. There was an interaction between focus year and publication area: papers from AW journals scored better over time, in contrast with papers from AP journals, for which scores remained similar over decades. The inter-assessor agreement is moderate, which may reflect the subject complexity, as the language used in the papers studied was ambiguous in relation to why and for whom it is performed. The low overall mean score evidenced that the animal welfare scientific publications are, on average, not prioritizing the interests of the animals. Thus, our results evidenced the presence of animal welfarism in animal welfare science, a problem that seems not to be intrinsic to animal welfare science itself, but rather to the way research is frequently conceived, conducted, interpreted, summarized and applied. Therefore, it seems urgent to further study the motivation for animal welfare research. The statement of the main justification for animal welfare papers, with an explicit declaration of the motivational priorities that constitute each scientific animal welfare study, may be an interesting recommendation for the improvement of animal welfare science.

5.
Clin Nutr ESPEN ; 43: 283-289, 2021 06.
Article in English | MEDLINE | ID: mdl-34024528

ABSTRACT

BACKGROUND: Fruit by-products contain phytochemicals, fibers and other components that can improve the redox imbalance of obesity. OBJECTIVE: The objective was to evaluate the effects of consumption of by-products of acerola, cashew and guava on the adiposity and redox homeostasis of adipose tissue in obese rats. METHODS: The animals were separated into 5 groups, control (CTL), high fat (HF), HF supplemented with acerola (HFA), cashew (HFC) and guava (HFG). RESULTS: Thiol quantification, lipid profile, catalase (CAT) and glutathione peroxidase (GPX) test were performed. TGL and VLDL levels were increased in HF group, and the treated groups did not change the lipid profile. CAT activity was increased in HFA and HFG groups. HFA was able to reduce the weight of the subcutaneous cushion. CONCLUSION: Treatment with fruit by-products did not alter weight gain, energy efficiency and body weight. Thus, the by-products of acerola and guava can be used as a sustainable alternative in the treatment of obesity.


Subject(s)
Anacardium , Psidium , Adipose Tissue , Adiposity , Animals , Homeostasis , Obesity , Oxidation-Reduction , Rats
6.
Mol Biol Rep ; 48(4): 3253-3263, 2021 Apr.
Article in English | MEDLINE | ID: mdl-34009563

ABSTRACT

We developed a novel method for the synthesis of bis-naphthoquinones (BNQ), which are hybrids of lawsone (2-hydroxy-1,4-naphthoquinone) and 3-hydroxy-juglone (3,5-dihydroxy-1,4-naphthoquinone). The anticancer activity of three synthesized compounds, named 4 (RC10), 5 (RCDFC), and 6 (RCDOH) was evaluated in vitro against two metastatic prostate cancer (PCa) cell lines, DU145 and PC3, using MTT assays. We found that 4 (RC10) and 5 (RCDFC) induced cytotoxicity against DU145 and PC3 cells. Flow cytometry analysis revealed that these two compounds promoted cell cycle arrest in G1/S and G2/M phases, increased Sub-G1 peak and induced inhibition in cell viability. We also showed that these effects are cell-type context dependent and more selective for these tested PCa cells than for HUVEC non-tumor cells. The two BNQ compounds 4 (RC10) and 5 (RCDFC) displayed promising anticancer activity against the two tested metastatic PCa cell lines, DU145 and PC3. Their effects are mainly associated with inhibition of cell viability, possibly through apoptotic cell death, besides altering the SubG1, G1/S and G2/M phases of cell cycle. 5 (RCDFC) compound was found to be more selective than 4 (RC10), when comparing their cytotoxic effects in relation to HUVEC non-tumoral cells. Future work should also test these compounds in combination with other chemotherapeutic drugs to evaluate their effects on further sensitizing drug-resistant metastatic PCa cells.


Subject(s)
Antineoplastic Agents , Naphthoquinones , Antineoplastic Agents/chemical synthesis , Antineoplastic Agents/pharmacology , Apoptosis/drug effects , Cell Cycle/drug effects , Cell Cycle Checkpoints/drug effects , Cell Line, Tumor , Cell Proliferation/drug effects , Cell Survival/drug effects , Drug Screening Assays, Antitumor , Humans , Male , Naphthoquinones/chemical synthesis , Naphthoquinones/pharmacology , PC-3 Cells , Prostatic Neoplasms/drug therapy
7.
J Clin Exp Dent ; 9(9): e1141-e1146, 2017 Sep.
Article in English | MEDLINE | ID: mdl-29075418

ABSTRACT

BACKGROUND: The aim of the present study was to assess the relationship between prenatal maternal cigarette smoking (PMCS) and early childhood caries (ECC) through a systematic review of currently available scientific evidence. MATERIAL AND METHODS: To address the focused question: "Is there an association between PMCS and ECC?" an electronic literature search without time or language restrictions was conducted till May 2017 in indexed databases using various key words including dental caries, pregnancy, smoking, tobacco products and child. Letters to the editor, commentaries, reviews, case reports and case series and studies in which, ECC was investigated without clinical dental examination, were excluded. RESULTS: Eight observational cross-sectional studies were included. The number of participants ranged between 1102 and 76920 children with age ranging between 24 months and 72 months. Seven studies reported a positive association between PMCS and ECC. One study reported that children whose mother smoked at least five cigarettes/day during pregnancy presented a higher caries severity level compared with to those whose mothers did not smoke. One study showed no association between ECC and PMCS. CONCLUSIONS: The association between PMCS and ECC remains debatable. Further well-designed longitudinal studies are needed in this regard. Key words:Cigarette, early childhood caries, pregnancy, risk factors, smoking.

8.
Photodiagnosis Photodyn Ther ; 20: 55-61, 2017 Dec.
Article in English | MEDLINE | ID: mdl-28847683

ABSTRACT

BACKGROUND: The aim of the present systematic review and meta-analysis was to assess the efficacy of antimicrobial photodynamic therapy (aPDT) as a therapeutic protocol for oral decontamination. METHODS: In order to address the focused question: Is aPDT a useful therapeutic protocol for oral decontamination?, an electronic search without time or language restrictions was conducted up to July 2017 in indexed databases using the combination of different key words including photochemotherapy, lasers, photodynamic therapy, disinfection, mouth, saliva and oral. The exclusion criteria included reviews, case-reports, case-series, commentaries, letters to the editor, interviews, and updates. Four randomized control trials were included and processed for data extraction. RESULTS: All studies reported that aPDT was effective in reducing the overall oral microbial load in saliva. Considering the effects of aPDT+photosensitizer (PS) compared with PS alone, there was no heterogeneity noticed for aPDT+PS (Q value=0.15, P=0.69, I2=0%). The overall mean difference for bacterial count in CFU/ml between aPDT+PS and PS alone was also not significant (weighted mean difference=-0.41, 95% CI=-1.12 to 0.29, p=0.24) at follow-up. CONCLUSION: The efficacy of aPDT for oral decontamination remains unclear. Further well-designed randomized clinical trials assessing the efficacy of aPDT reducing the oral microbial load are need.


Subject(s)
Dental Scaling/methods , Photochemotherapy/methods , Photosensitizing Agents/therapeutic use , Bacterial Load , Colony Count, Microbial , Humans , Lasers, Semiconductor , Root Planing/methods , Saliva/microbiology , Systematic Reviews as Topic
9.
J Hand Ther ; 30(3): 320-327, 2017.
Article in English | MEDLINE | ID: mdl-27899223

ABSTRACT

STUDY DESIGN: Cross-sectional and observational study. PURPOSE OF THE STUDY: Assess upper limb (UL) activity limitations using the "Test d'Evaluation des Membres Supérieurs Des Personnes Agées" (TEMPA) in individuals with Parkinson's disease (PD) and verify its clinimetrics properties. METHODS: The following were evaluated: internal consistency, interrater and test-retest reliability; concurrent validity; convergent validity; know group's validity; minimal detectable change, floor and ceiling effects, and the relationship between UL activity limitations and the presence of freezing of gait. RESULTS: Excellent reliability and interrater agreement (intraclass correlation coefficient = 0.99 and κ = 0.92) and test-retest reliability (intraclass correlation coefficient = 0.97) were found, as well internal consistency (α = 0.99). A moderate negative correlation was found between TEMPA and section II of the Unified Parkinson's Disease Rating Scale (ρ = -0.58; P = .001), and moderate/low between the test and the Nine Hole Peg Test values of the right UL and moderate for left UL (ρ = 0.56 and ρ = 0.41; P = .001) (ρ = 0.52 and ρ = 0.51; P = .001 and P = .002), respectively. No significant relationship was found with freezing episodes (P = .057). DISCUSSION: TEMPA is useful for assessing UL activity limitations in PD, have adequate clinimetrics properties and is capable of detecting the influence of motor symptoms during the carrying out of daily living tasks. No differences were found between freezers and no freezers. LEVEL OF EVIDENCE: N/A.

10.
Tumour Biol ; 37(8): 11339-48, 2016 Aug.
Article in English | MEDLINE | ID: mdl-26960690

ABSTRACT

Prostate cancer antigen 3 (PCA3) is a prostate-specific long noncoding RNA (lncRNA) involved in the control of prostate cancer (PCa) cell survival, through modulating androgen receptor (AR) signaling. To further comprehend the mechanisms by which PCA3 modulates LNCaP cell survival, we characterized the expression patterns of several cancer-related genes, including those involved in epithelial-mesenchymal transition (EMT) and AR cofactors in response to PCA3 silencing. We also aimed to develop a strategy to stably silence PCA3. Small interfering RNA (siRNA) or short hairpin RNA (shRNA) was used to knock down PCA3 in LNCaP cells. The expression of 84 cancer-related genes, as well as those coding for AR cofactors and EMT markers, was analyzed by quantitative real-time PCR (qRT-PCR). LNCaP-PCA3 silenced cells differentially expressed 16 of the 84 cancer genes tested, mainly those involved in gene expression control and cell signaling. PCA3 knockdown also induced the upregulation of several transcripts coding for AR cofactors and modulated the expression of EMT markers. LNCaP cells transduced with lentivirus vectors carrying an shRNA sequence targeting PCA3 stably downregulated PCA3 expression, causing a significant drop (60 %) in the proportion of LNCaP cells expressing the transgene. In conclusion, our data provide evidence that PCA3 silencing modulates the expression of key cancer-related genes, including those coding for AR cofactors and EMT markers. Transducing LNCaP cells with an shRNA sequence targeting PCA3 led to loss of viability of the cells, supporting the proposal of PCA3 knockdown as a putative therapeutic approach to inhibit PCa growth.


Subject(s)
Antigens, Neoplasm/genetics , Epithelial-Mesenchymal Transition/genetics , Gene Expression Regulation, Neoplastic/genetics , Prostatic Neoplasms/pathology , Cell Line, Tumor , Gene Knockdown Techniques/methods , Humans , Male , Real-Time Polymerase Chain Reaction
11.
Arch Psychiatr Nurs ; 30(2): 162-6, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26992865

ABSTRACT

INTRODUCTION: While attending to higher education, multiple changes occur in the lives of young students. These changes make higher education students particularly more exposed and vulnerable to mental health problems, and therefore more likely to present suicidal behaviors. OBJECTIVES: The aim of this study was to assess suicidal ideation in higher education students, and its relationship with some psychosocial variables. METHODS: Exploratory, quantitative and descriptive study, applied on a sample of 1074 students of a higher education institution in Portugal. RESULTS: Some significant associations with suicidal ideation were found with self-concept factors (self-acceptance, self-effectiveness and impulsivity); stress, anxiety and clinical depression; linkage anxiety and social support activities dimensions; intimacy and total social support. CONCLUSION: In our sample we found 84 students with potential suicidal risk, and through the result analysis, the biopsychosocial profile of the student at risk for suicidal ideation exhibits the following traits: female, age 18/19, low self-concept, insecure linkage patterns and little involvement in social activities and intimacy relationships. All facts considered, higher education institutions should provide programs that promote mental health and suicide prevention in academic environments. The results of this study also have implications for policy makers, clinical practice, suicide prevention and higher education institutions.


Subject(s)
Anxiety/psychology , Depression/psychology , Stress, Psychological , Suicidal Ideation , Adolescent , Adult , Female , Humans , Male , Middle Aged , Portugal , Self Concept , Social Support
12.
Rev Bras Epidemiol ; 17 Suppl 1: 203-14, 2014.
Article in English, Portuguese | MEDLINE | ID: mdl-25054264

ABSTRACT

OBJECTIVE: To describe the prevalence of alcohol consumption among Brazilian students and identify the sociodemographic factors associated alcohol consumption in the last 30 days. METHODS: Cross-sectional study with a cluster sample of 109,104 9th grade students in Brazilian public and private schools in 2012. The prevalence and 95% confidence intervals of the indicators of alcohol consumption were analyzed. RESULTS: Of the students analyzed, 50.3% (95%CI 49.0 - 51.6) experimented one dose of alcoholic beverages or more. The consumption of alcohol in the last 30 days was 26.1% (95%CI 24.5 - 27.7), and there was no difference in prevalence between students from public and private schools. Drunkenness episodes were reported by 21.8% (95%CI 21.1 - 22.5) of the students. The perception of students about the negative reaction of their family if they came home drunk occurred in 89,7% (95%CI 89,6 - 89,9) of cases, and 10% (95%CI 8.9 - 11.1) of them reported having problems with their families or friends because they had been drinking. Among adolescents aged less than 14 years old, the first alcoholic drink intake was predominantly at 12 to 13 years old. The most common way to get a drink was at parties, with friends, buying in them in supermarkets, stores or bars and at home. The consumption of alcohol in the last 30 days was less frequent among boys, increasing with age. CONCLUSION: The study demonstrates the extension of alcohol as a problem, making it important to advance in measures such as the improvement of protective legislation for children and adolescents and stricter enforcement in alcohol sales.


Subject(s)
Alcohol Drinking/epidemiology , Adolescent , Brazil/epidemiology , Child , Cross-Sectional Studies , Female , Health Surveys , Humans , Male , Prevalence , Schools , Socioeconomic Factors , Surveys and Questionnaires
13.
Rev Bras Epidemiol ; 14 Suppl 1: 147-56, 2011 Sep.
Article in English, Portuguese | MEDLINE | ID: mdl-22002151

ABSTRACT

The objective of this study was to describe situations related to sexual health of adolescents, according to the National Survey of School Health (PeNSE). It is a cross-sectional study performed by the Brazilian Institute of Geography and Statistics (IBGE), in partnership with the Ministry of Health that involved 60,973 students and 1,453 public and private schools. Data analysis points out that 30.5% (95%CI 29.9-31.2) of the adolescents had already had sexual relations sometime in their lives, being more frequent for males (43.7%; 95%CI 42.7-44.7) than females (18.7%; 95%CI 18.0-19.4), especially those who go to public schools (33.1%; 95%CI 32.4-33.9), aged 15 years or older (47.3%; 95%CI 45.7-48.9) and 16 years (63.5%; 95%CI 61,5-65.4). The sexual initiation age was early and 40.1% (95%CI 38.8-41.4) reported having had only one partner in life. The use of condoms in the last sexual relation was high both for protective (75.9%; CI95% 74.8-76.9) and contraceptive methods (74.7%; 95%CI 73.6-75.7). It is necessary to emphasize actions for promoting sexual health towards adolescents in order to minimize vulnerabilities.


Subject(s)
Sexual Behavior , Adolescent , Brazil , Child , Cross-Sectional Studies , Female , Health Surveys , Humans , Male
14.
J Clin Endocrinol Metab ; 96(9): E1388-98, 2011 Sep.
Article in English | MEDLINE | ID: mdl-21752897

ABSTRACT

CONTEXT: Micro-RNA have emerged as an important class of short endogenous RNA that act as posttranscriptional regulators of gene expression and are constantly deregulated in human cancer. MiR-1 has been found down-regulated in lung, colon, and prostate cancer. OBJECTIVES: In this study, we investigated the possible role of miR-1 in thyroid carcinogenesis. DESIGN: We have analyzed miR-1 expression in a panel of thyroid neoplasias including benign and malignant lesions and searched for miR-1 targets. RESULTS: Our results show that miR-1 expression is drastically down-regulated in thyroid adenomas and carcinomas in comparison with normal thyroid tissue. Interestingly, miR-1 down-regulation was also found in thyroid hyperproliferative nonneoplastic lesions such as goiters. We identified the CCND2, coding for the cyclin D2 (CCND2) protein that favors the G1/S transition, CXCR4, and SDF-1α genes, coding for the receptor for the stromal cell derived factor-1 (SDF-1)/CXCL12 chemokine and its ligand SDF-1/CXCL12, respectively, as miR-1 targets. An inverse correlation was found between miR-1 expression and CXC chemokine receptor 4 (CXCR4) and SDF-1α protein levels in papillary and anaplastic thyroid carcinomas. Consistent with a role of the CCND2 protein in cell proliferation and CXCR4 and SDF-1α proteins in cell invasion and metastasis, functional studies demonstrate that miR-1 is able to inhibit thyroid carcinoma cell proliferation and migration. CONCLUSIONS: These results indicate the involvement of miR-1 in thyroid cell proliferation and migration, validating a role of miR-1 down-regulation in thyroid carcinogenesis.


Subject(s)
Adenoma/metabolism , Carcinoma/metabolism , MicroRNAs/metabolism , Thyroid Gland/metabolism , Thyroid Neoplasms/metabolism , Adenoma/genetics , Animals , Carcinoma/genetics , Cell Line, Tumor , Cell Movement/genetics , Cell Proliferation , Chemokine CXCL12/genetics , Chemokine CXCL12/metabolism , Cyclin D2/genetics , Cyclin D2/metabolism , Down-Regulation , Humans , Mice , MicroRNAs/genetics , Receptors, CXCR4/genetics , Receptors, CXCR4/metabolism , Signal Transduction/genetics , Thyroid Neoplasms/genetics
15.
Dermatol Online J ; 14(12): 10, 2008 Dec 15.
Article in English | MEDLINE | ID: mdl-19265623

ABSTRACT

Acquired digital fibrokeratomas (ADF) are benign and uncommon lesions consisting of collagenous papules and nodules covered by hyperkeratotic epidermis. These tumors occur mainly on the fingers and toes and infrequently on the palms and soles. They may possibly be triggered by a reaction to a trauma, ADF usually present as small and solitary dome-shaped lesions with a collarete of slightly raised skin at the base. We report a rare case of fibrokeratoma of the heel, presenting as a large and pedunculated nodule.


Subject(s)
Heel/pathology , Keratosis/pathology , Collagen/metabolism , Humans , Keratins/metabolism , Keratosis/metabolism , Keratosis/surgery , Male , Middle Aged , Treatment Outcome
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