Publications by authors named "Berti T"

Understanding the determinants of malnutrition is pivotal for public health interventions. This study aimed to identify socio-economic, demographic, dietary and maternal determinants of wasting and overweight among Brazilian children between 6 and 59 months. Data from the Brazilian National Survey on Child Nutrition were analysed ( 11 789).

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  • The study aimed to assess food poverty among Brazilian children by analyzing dietary data and socio-economic factors, using a UNICEF classification for food poverty levels.
  • Results showed that 32.5% of children faced moderate food poverty and 6.0% experienced severe food poverty, particularly among those with less-educated and lower-income mothers/caregivers.
  • The most commonly consumed foods among children in severe food poverty were dairy products, grains, and ultra-processed foods, indicating a concerning dietary pattern.
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Objective: This study aimed to examine whether education level and income trajectories influence vegetable consumption changes over 13 years among civil servants at different campuses of a university in the state of Rio de Janeiro, Brazil.

Methods: Vegetable intake frequency (daily and non-daily consumption), income (per capita), and education level (maintenance of low schooling/ upward mobility/maintenance of high schooling) were assessed at baseline (1999) and in the fourth wave (2011-12) of the Pró-Saúde (Pro-Health) cohort study. A total of 2,381 participants were analyzed.

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Background: Serum zinc concentration (SZC) is considered the best biomarker of zinc status in population-level evaluations. However, zinc deficiency (ZD) estimations can be biased if they do not consider blood collection timing, inflammation, and fasting status.

Objectives: The objectives of this study were to determine SZC without and with adjustment for inflammation, according to blood collection timing and fasting status, estimate ZD prevalence, and evaluate the associated factors with ZD in a representative sample of Brazilian children aged <5 y.

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  • - This study analyzes the nutrition transition of Brazilian children under 5 from 2006 to 2019, focusing on micronutrient deficiencies, stunting, excessive weight, and breastfeeding practices using data from two national surveys.
  • - Significant improvements were noted in anemia and vitamin A deficiency rates, while stunting remained steady and excessive weight increased during this period, with breastfeeding practices also seeing positive trends.
  • - By 2019, many children achieved minimum dietary diversity, but high consumption of ultra-processed foods and low intake of fruits and vegetables were concerning, highlighting ongoing disparities impacted by geographical and maternal factors.
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  • - The study examined the prevalence of minimum dietary diversity (MDD) and ultra-processed food consumption among 4,354 Brazilian children aged 6-23 months, considering factors like sociodemographic variables and regional differences.
  • - MDD was found in 63.4% of the children, with lower rates in regions like the North (54.8%) and among those with less educated caregivers or facing food insecurity, while 80.5% consumed ultra-processed foods, particularly in the North (84.5%).
  • - Only 8.4% of children achieved MDD without ultra-processed foods, highlighting dietary challenges among vulnerable populations and emphasizing the need for improved nutrition policies for infants in Brazil.
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  • The study analyzed factors related to anemia and vitamin A deficiency in 7,716 Brazilian children aged 6-59 months, revealing significant associations with socio-economic and demographic factors like maternal education and age.
  • Children aged 6-23 months were notably affected, especially if their mothers had less education or were younger, while regional disparities were evident with higher prevalence in the North.
  • The research highlights the importance of tailored public health policies to address nutritional deficiencies, particularly in vulnerable groups, and suggests that certain dietary habits and breastfeeding practices can influence these health outcomes.
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  • Malnutrition is a significant global health issue, and this study focused on its prevalence among mother-child pairs in Brazil for children under 5 years old, comparing data from 2006 and 2019.* -
  • The findings revealed that in 2019, 58.2% of mothers and 9.7% of children were overweight, with rising rates of overweight in mother-child dyads and an increase in the double burden of malnutrition over the years.* -
  • Vulnerability to malnutrition was higher in dyads with lower maternal education, older mothers, and those from Southern Brazil, highlighting the need for targeted interventions in these populations.*
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  • The study aimed to analyze the rates of cross-breastfeeding, human milk donation to milk banks, and the reception of milk from these banks among Brazilian mothers.
  • Using data from the Brazilian National Survey on Child Nutrition (ENANI-2019), researchers focused on 5,831 mothers of children under two years who had breastfed, finding that 21.1% practiced cross-breastfeeding.
  • Although 4.8% of mothers donated milk and 3.6% reported their children received donated milk, cross-breastfeeding poses health risks, highlighting the need for discussion around these practices in Brazil and globally.
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This study compared the distribution of stunting and height-for-age (HAZ) Z-scores among age groups in data from the Brazilian National Survey on Demography and Health of Women and Children (PNDS 2006) and the Brazilian National Survey on Child Nutrition (ENANI-2019). The final sample comprised 4,408 and 14,553 children < 59 months of age in the PNDS 2006 and ENANI-2019, respectively. Children with HAZ scores < -2 according to the World Health Organization (WHO) growth standard were classified as stunted.

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To analyse the association of socio-demographic and health factors with vitamin D insufficiency and 25-hydroxyvitamin D (25(OH)D) concentration in Brazilian children aged 6-59 months. Data from 8145 children from the Brazilian National Survey on Child Nutrition (ENANI-2019) were analysed. The serum concentration of 25(OHD)D was measured using a chemiluminescent immunoassay.

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Background: Vitamin B12 and folate are key nutrients that help children reach their full potential in growth and development; however, little is known about the status of these vitamins in Brazilian children.

Objectives: To describe the serum concentrations of vitamin B12 and folate, to investigate the association between high folate concentration (HFC) and vitamin B12 deficiency, and to evaluate the association between vitamin B12 and stunting/underweight in Brazilian children aged 6-59 mo.

Methods: Data from 7417 children aged 6-59 mo collected during the Brazilian National Survey on Child Nutrition were used.

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This manuscript aims to describe the methodological, operational, and quality control aspects of the assessment of dietary intake in children under five years of age participating in the Brazilian National Survey on Child Nutrition (ENANI-2019), a household survey in a probability sample of Brazilian households. Two instruments were developed to assess child feeding practices - a structured, current status-type questionnaire and a 24-hour dietary recall (24HR), both installed in a mobile data collection device used by previously trained interviewers. A Photographic Manual for Quantification of Children's Dietary Intake was specifically developed for and used in the survey as a support aid to identify and quantify foods reported in the 24HR.

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Objective: To investigate the food consumption according to the degree of processing and associations with sociodemographic characteristics.

Methods: A cross-sectional study of the Estudo Pró-Saúde (Pro-Health Study), with 520 civil servants of university campuses, Rio de Janeiro, 2012-13. A food frequency questionnaire was used to classify food consumption: 1) in natura, minimally processed, food preparations based on these foods; 2) processed foods; 3) ultra-processed foods.

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Purpose: The aim was to report the corneal higher-order aberrations (HOA), the topographic metrics, and the visual and refractive outcomes 2 years after performing collagen crosslinking (CXL) for progressive keratoconus. The correlation among corneal HOAs, topographic metrics, and visual acuity changes was also investigated.

Methods: This is a prospective case series involving 42 eyes from 32 patients with progressive keratoconus treated with CXL.

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Purpose: To describe two patients with moderate keratoconus and a corneal thickness exceeding 600 μm at the thinnest point.

Methods: Case report.

Results: In the first case, the steepest keratometric power was 51.

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Purpose: To evaluate the rate and the causes of interruption of bevacizumab intravitreal therapy in patients with exudative age-related macular degeneration (AMD) in a referential eye-care center in Joinville, southern Brazil.

Methods: Retrospective, non-comparative, consecutive case series. Cases included all patients with exudative age-related macular degeneration who were treated with one or more bevacizumab intravitreal injections at Sadalla Amin Ghanem Eye Hospital between January, 2006 and January, 2008.

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Purpose: To evaluate the safety and efficacy of corneal collagen crosslinking (CXL) in patients with painful pseudophakic bullous keratopathy (PBK).

Setting: University of São Paulo, São Paulo and Sadalla Amin Ghanem Eye Hospital, Joinville, Santa Catarina, Brazil.

Methods: This prospective study included consecutive eyes with PBK that had CXL.

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This study was designed to compare the activity of two MDR modulators, verapamil and dipyridamole, on the in vitro growth of a human colon carcinoma cell line. The aims were: a) to investigate the different sensitivity of the parental cell line (LoVo S) and the doxorubicin-resistant one (LoVo R) towards the treatment with several antiblastics and their associations with verapamil or dipyridamole; b) to evaluate if the combined use of these drugs with verapamil or dipyridamole increases their cytotoxicity; c) to understand whether the mechanism of action of each modulator is the same. Idarubicin and vinblastine were the most active drugs on both cell lines.

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Tolerance to the rewarding properties of morphine was investigated in mice using a new conditioned place preference (CPP) procedure. Four pairings of morphine with specific environmental cues induced a significant CPP for the drug-paired cues. Further opiate conditioning trials in the presence of the same environmental cues revealed no change in the drug-induced CPP on repeated test sessions.

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In previous research we studied the cytotoxic effect of new Pt mercaptopyridine (MP) complexes on several tumoral cell lines (F10, Föhn, LoVo and HeLa) as well as on the fibroblast cell line (3T3). The more interesting Pt compounds are compared here to Pd mercaptopyridine analogs, in order to evaluate the metals influence on activity. Earlier, the complexes C/2 = [Pt(MP)3Cl]Cl; C/5 = [Pt(MP)3Br]Br; C/8 = [Pd(MP)3Cl]Cl and C/11 = [Pd(MP)3Br]Br and cis-DDP as reference were tested on 3T3 and LoVo cells, by Sauter's multiwells technique and neutral red uptake.

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The effect of antiblastic drugs with different mechanisms of action has been investigated in LoVo cells (on the resistant line LoVo R and the parental LoVo S) for 48 h and for further 24 h in drug-free medium (recovery time) in order to evaluate drug action after its removal. Our results show that the drug effect persists in time, particularly in LoVo R cells. The inhibitory effect on cell growth was enhanced when the drugs were associated with verapamil, while no difference was detected with cisplatin and 4-hydroperoxycyclophosphamide, drugs which are not involved in P-glycoprotein-mediated multidrug resistance.

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The aim of the present study was to investigate in vitro the effect on LoVo cells (LoVo-S, doxorubicin-sensitive, and LoVo-R, doxorubicin-resistant) on the association of dipyridamole and certain antiblastic drugs (doxorubicin, idarubicin, mitoxantrone, teniposide) with different mechanisms of action. The cells were treated for 48 hours with the drugs, or were left for 24 hours without treatment (recovery period). The results demonstrate that dipyridamole possesses an inhibitory effect on cell growth, and that it potentiates the cytotoxic effect of the tested antiblastic drugs, particularly on LoVo-R cells.

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It is well known that normal rat serum (NRS) shows an antibacterial activity because of the presence of endogenous substances that are able to express a defence against pathogenic microorganisms. Moreover, in former studies, we observed that NRS presents a synergistic activity with some antibiotics (thus able to lower minimum inhibitory concentration values). The aim of this research was to study the antibacterial activity and synergistic effect of neutropenic rat sera (NPRS) with gentamicin.

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