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2.
Nutrients ; 14(21)2022 Nov 02.
Article in English | MEDLINE | ID: mdl-36364874

ABSTRACT

Associations between vitamin D deficiency and metabolic syndrome (MS) have been reported; however, the underlying biological mechanisms remain controversial. The aim of this study was to investigate the associations of CYP2R1 and VDR variants with MS and MS components in non-diabetic Brazilian adolescents. This cross-sectional study included 174 adolescents who were classified as overweight/obese. Three CYP2R1 variants and four VDR variants were identified by allelic discrimination. The CYP2R1 polymorphisms, rs12794714 (GG genotype) (odds ratio [OR] = 3.54, 95% confidence interval [CI] = 1.24-10.14, p = 0.023) and rs10741657 (recessive model-GG genotype) (OR = 3.90, 95%CI = 1.18-12.92, p = 0.026) were significantly associated with an increased risk of MS and hyperglycemia, respectively. The AG + GG genotype (dominant model) of the rs2060793 CYP2R1 polymorphism was associated with hyperglycemia protection (OR = 0.28, 95%CI = 0.08-0.92, p = 0.037). Furthermore, the CC genotype (recessive model) of the rs7975232 VDR polymorphism was significantly associated with a risk of hypertension (OR = 5.91, 95%CI = 1.91-18.32, p = 0.002). In conclusion, the CYP2R1 rs12794714 polymorphism could be considered a possible new molecular marker for predicting the risk of MS; CYP2R1 rs10741657 polymorphism and VDR rs7975232 polymorphism are associated with an increased risk of diabetes and hypertension in adolescents with overweight/obesity.


Subject(s)
Hyperglycemia , Hypertension , Metabolic Syndrome , Adolescent , Humans , Cholestanetriol 26-Monooxygenase/genetics , Cytochrome P450 Family 2/genetics , Genetic Predisposition to Disease , Polymorphism, Single Nucleotide , Metabolic Syndrome/epidemiology , Metabolic Syndrome/genetics , Brazil/epidemiology , Overweight , Cross-Sectional Studies , Genotype , Cytochrome P-450 Enzyme System/genetics , Vitamin D , Receptors, Calcitriol/genetics
3.
Arch. endocrinol. metab. (Online) ; 66(4): 481-488, July-Aug. 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1403223

ABSTRACT

ABSTRACT Objective: The optimal time for a neck ultrasound (US) in the follow-up of papillary thyroid cancer (PTC) after the first year is undetermined. We aimed to verify the utility of routine neck US in the surveillance of patients diagnosed with low- and intermediate-risk PTC with no evidence of disease at the one-year assessment. Materials and methods: We conducted a retrospective longitudinal study of patients with low- and intermediate-risk PTC with normal neck US, unstimulated serum thyroglobulin (Tg) < 1 ng/mL and negative anti-Tg antibodies at the one-year follow-up. Patients were divided into group 1 [undetectable Tg (<0.20 ng/mL)] and group 2 [detectable Tg but < 1 ng/mL]. The negative predictive value (NPV) of the one-year unstimulated Tg at the five-year and last follow-up visits was calculated. Results: We included n = 88 patients in group 1 and n = 8 patients in group 2. No patient from group 1 presented suspicious US findings at the five-year evaluation [NPV: 100.0% (95% confidence interval (CI): 95.5%-100.0%)], and at the last visit, only one patient had developed a lymph node classified as suspicious [NPV: 98.8% (95% CI: 93.2%-100.0%); mean follow-up: 6.7 years]. In group 2, two patients' USs presented suspicious findings at the five-year evaluation [NPV: 75.0% (95% CI: 34.9%-96.8%)]. At the last visit, only one patient persisted with suspicious findings in the US [NPV: 87.5% (95% CI: 47.4%-99.7%); mean follow-up: 6.5 years]. Conclusion: Low- and intermediate-risk PTC with an excellent response to treatment at the one-year assessment can be safely monitored with regular unstimulated Tg assessments. Conclusions should not be drawn for Tg levels between 0.20-0.99 ng/mL.

4.
Arch Endocrinol Metab ; 66(4): 481-488, 2022.
Article in English | MEDLINE | ID: mdl-35758832

ABSTRACT

Introduction: The optimal time for a neck ultrasound (US) in the follow-up of papillary thyroid cancer (PTC) after the first year is undetermined. We aimed to verify the utility of routine neck US in the surveillance of patients diagnosed with low- and intermediate-risk PTC with no evidence of disease at the one-year assessment. Subjects and methods: We conducted a retrospective longitudinal study of patients with low- and intermediate-risk PTC with normal neck US, unstimulated serum thyroglobulin (Tg) < 1 ng/mL and negative anti-Tg antibodies at the one-year follow-up. Patients were divided into group 1 [undetectable Tg (<0.20 ng/mL)] and group 2 [detectable Tg but < 1 ng/mL]. The negative predictive value (NPV) of the one-year unstimulated Tg at the five-year and last follow-up visits was calculated. Results: We included n = 88 patients in group 1 and n = 8 patients in group 2. No patient from group 1 presented suspicious US findings at the five-year evaluation [NPV: 100.0% (95% confidence interval (CI): 95.5%-100.0%)], and at the last visit, only one patient had developed a lymph node classified as suspicious [NPV: 98.8% (95% CI: 93.2%-100.0%); mean follow-up: 6.7 years]. In group 2, two patients' USs presented suspicious findings at the five-year evaluation [NPV: 75.0% (95% CI: 34.9%-96.8%)]. At the last visit, only one patient persisted with suspicious findings in the US [NPV: 87.5% (95% CI: 47.4%-99.7%); mean follow-up: 6.5 years]. Conclusion: Low- and intermediaterisk PTC with an excellent response to treatment at the one-year assessment can be safely monitored with regular unstimulated Tg assessments. Conclusions should not be drawn for Tg levels between 0.20-0.99 ng/mL.


Subject(s)
Carcinoma, Papillary , Thyroid Neoplasms , Carcinoma, Papillary/diagnostic imaging , Follow-Up Studies , Humans , Longitudinal Studies , Neck/diagnostic imaging , Neck/pathology , Retrospective Studies , Thyroglobulin , Thyroid Cancer, Papillary/diagnostic imaging , Thyroid Neoplasms/pathology , Thyroidectomy , Ultrasonography
5.
An Acad Bras Cienc ; 93(suppl 1): e20200846, 2021.
Article in English | MEDLINE | ID: mdl-34008765

ABSTRACT

We present briefly the LLAMA sub-mm radiotelescope, a joint project of Argentina and Brazil, being mounted in the Andes, Argentina, at 4800 m altitude. Here we focus on the activities that are going on mostly under the responsibility of Brazil, like the high frequency receivers, parts of the back-end and electronics, the optical system of the telescope to bring the radiation to the receivers, the equipment needed for the integration and verification phase (optical telescope and holography) and the computation system.The main scientific applications that are planned are dscribed. We also report on a joint program with BRICS countries approved in 2019, which will involve the use of LLAMA for testing high-frequency receivers.


Subject(s)
Telescopes , Argentina , Brazil
6.
PLoS One ; 15(11): e0242680, 2020.
Article in English | MEDLINE | ID: mdl-33237963

ABSTRACT

OBJECTIVE: To develop and validate the content of an instrument for assessing the motivation for weight loss in adolescents with overweight and obesity. METHODS: The development and validation of the instrument were conducted in five stages, for which two systematic reviews were conducted. The first one, for the identification of questionnaires assessing the motivation for weight loss, included six studies and contributed to the selection of the domains for the instrument. The second one, conducted to identify the motivations for weight loss in adolescents with overweight and/or obesity, included six studies and contributed to the selection of 17 motivations included in the initial version of the instrument. The motivations most commonly identified were: having better health, improving my appearance, improving my self-esteem and avoiding bullying. The content validity was confirmed by a committee of 12 experts from the areas of nutrition, endocrinology, psychology, and physical education. Based on these evaluations, the content validity index was calculated. Only the items with a content validity index >0.80 for practical relevance were held in the instrument. RESULTS: Five of the 17 motivations included in the initial version of the instrument were excluded because they had content validity index <0.80 for practical relevance. Of the 12 items held in the instrument, five were revised by experts in order to standardize wording and make the language more appropriate for adolescents. Experts categorized the items into the health, personal satisfaction, appearance and social domains. CONCLUSIONS: This is the first instrument assessing the motivation for weight loss in adolescents with overweight and obesity in Brazil. The content validity evaluation by the panel of experts provided more practical relevance, as well as contributed to a better presentation of the items. Further psychometric testing is needed to determine reliability and construct validity of the instrument.


Subject(s)
Motivation , Obesity , Psychometrics , Surveys and Questionnaires , Weight Loss , Adolescent , Brazil , Female , Humans , Male , Obesity/physiopathology , Obesity/psychology
7.
Sci Rep ; 10(1): 12098, 2020 07 21.
Article in English | MEDLINE | ID: mdl-32694530

ABSTRACT

Chloroquine (CQ) and hydroxychloroquine, are promising anti-inflammatory drugs for the treatment of Diabetes mellitus (DM) to prevent associated complications. Therefore, this study evaluated the anti-inflammatory effects of CQ-free and CQ-incorporated polylactic acid nanoparticles (NPs) in the peripheral blood mononuclear cells (PBMCs) of patients with type 1 Diabetes mellitus (T1DM). In total, 25 normoglycemic individuals and 25 patients with T1DM aged 10-16 years were selected and glycemic controls evaluated. After cell viability assessed by MTT assay, T1DM PBMCs were subjected to a CQ concentration of 10 µM in three different conditions: not treated (NT), treated with CQ, and treated with CQ NPs. The cells were incubated for 48 h, and the mRNA expressions of cytokines IL1B, IFNG, TNFA, IL12, and IL10 were determined by relative quantification through real-time PCR at 24 h intervals. IL1B expression decreased in CQ and CQ NP-treated cells after 48 h (p < 0.001) and 24 h (p < 0.05) of treatment, respectively. IFNG and IL12 expressions significantly decreased (p < 0.001) in cells treated with CQ and CQ NPs at 24 and 48 h compared to NT. TNFA and IL10 expressions significantly decreased after 48 h (p < 0.001) and 24 h (p < 0.002), respectively, by both CQ and CQ NPs treatment. Despite being a preliminary in vitro study, CQ has anti-inflammatory activity in the primary cells of T1DM patients and could represent an alternative and adjuvant anti-inflammatory therapy to prevent diabetes complications.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Chloroquine/pharmacology , Cytokines/genetics , Diabetes Mellitus, Type 1/genetics , Leukocytes, Mononuclear/cytology , Polyesters/chemistry , Adolescent , Anti-Inflammatory Agents/chemistry , Case-Control Studies , Cell Proliferation/drug effects , Cell Survival/drug effects , Chemotherapy, Adjuvant , Child , Chloroquine/chemistry , Diabetes Mellitus, Type 1/drug therapy , Diabetes Mellitus, Type 1/immunology , Female , Gene Expression Regulation/drug effects , Humans , Leukocytes, Mononuclear/drug effects , Leukocytes, Mononuclear/metabolism , Male , Nanoparticles
8.
Trials ; 20(1): 768, 2019 Dec 26.
Article in English | MEDLINE | ID: mdl-31878961

ABSTRACT

BACKGROUND: Individuals with cystic fibrosis (CF) may develop CF-related diabetes (CFDR). This comorbidity is related to a poorer quality of life, microvascular complications, a decline in lung function, and an increase in exacerbations, as well as delayed growth and puberty. Evidence exists that physical exercise contributes to glycemic control in individuals with non-CF-related diabetes. This exercise is usually continuous with moderate intensity and long duration, which can cause muscle dyspnea and fatigue in CF individuals. Aerobic interval training (AIT) emerges as a safe and effective alternative for treating these individuals. The objective of this study is to evaluate the effects of AIT on glucose tolerance in children and adolescents with CF. METHODS: This study will be a two-arm, prospectively registered, randomized controlled trial with blind assessors and twenty 6- to 18-year-old individuals with cystic fibrosis (CF) from two different Brazilian states. People with CF will be randomly allocated to either the experimental or control group using block randomization, stratified by puberty stage,. Participants from both groups will receive an educational intervention and will be asked to continue their usual daily treatment for the full duration of the study. Those in the experimental group will perform AIT on a cycle ergometer at home three times a week, for 8 consecutive weeks. The sample characterization will include an assessment of puberty stage, socioeconomic status, dyspnea, and anthropometry. The primary outcome will be the change in glucose tolerance, while the secondary outcomes will include lung function, exercise tolerance, respiratory muscle strength, quality of life, and CF exacerbations. All outcomes will be assessed at baseline, week 9, and week 17. DISCUSSION: This is the first study to evaluate the effects of AIT on glucose tolerance in children and adolescents with CF. This study will serve as a basis for guiding clinical practice and decision-making in treating glucose intolerance and CF-related diabetes (CFRD) in children and adolescents with CF. TRIAL REGISTRATION: ClinicalTrials.gov Protocol Registration System: NCT03653949. Registered on August 31, 2018.


Subject(s)
Cystic Fibrosis/blood , Cystic Fibrosis/rehabilitation , Exercise/physiology , Glucose Intolerance/therapy , Adolescent , Blood Glucose/analysis , Brazil/epidemiology , Case-Control Studies , Child , Clinical Decision-Making , Comorbidity , Cystic Fibrosis/complications , Diabetic Angiopathies/epidemiology , Disease Progression , Exercise Test/methods , Exercise Tolerance , Female , Humans , Lung Diseases/epidemiology , Lung Diseases/physiopathology , Male , Muscle Strength , Prospective Studies , Quality of Life , Respiratory Function Tests/methods , Respiratory Muscles/physiopathology
9.
Rev. cuba. reumatol ; 21(3): e116, sept.-dic. 2019.
Article in Spanish | LILACS, CUMED | ID: biblio-1093840

ABSTRACT

La talalgia se define como la percepción de dolor localizado en el talón que anatómicamente corresponde al hueso calcáneo y a las partes blandas colaterales, constituye la causa más frecuente de consulta a los especialistas en pie y tobillo, identificando dos zonas de aparición del dolor, el dolor plantar y el dolor posterior, los que están directamente relacionados con la inervación de esa zona del pie, realizamos un análisis general para evaluar las opciones iniciales de tratamiento y las indicaciones fisioterapéuticas exponiendo nuestra opinión y experiencias(AU)


Talalgia is defined as the perception of localized pain in the heel that anatomically corresponds to the calcaneus bone and collateral soft tissue, is the most frequent cause of consultation with foot and ankle specialists, identifying two areas of pain appearance, pain plantar and subsequent pain, which are directly related to the innervation of that area of the foot, we perform a general analysis to evaluate the initial treatment options and physiotherapeutic indications exposing our opinion and experiences(AU)


Subject(s)
Humans , Male , Female , Calcaneus/physiopathology , Heel/physiopathology
10.
PLoS One ; 14(7): e0220104, 2019.
Article in English | MEDLINE | ID: mdl-31335916

ABSTRACT

This systematic review aims to identify instruments used to assess motivations for weight loss in individuals with overweight and obesity from different age groups, such as children, adolescents, adults, and older adults. The virtual search was carried out using the PubMed, Scopus, LILACS, and ADOLEC databases, and by manual search. The following descriptors were used: questionnaire, scale, instrument, evaluation, motivation, motive, reason, "lose weight," "losing weight," "weight loss," and slimming. Methodological quality was assessed according to the criteria of the COSMIN checklist. The search yielded 3,524 results, seven of which were included in the review. Six questionnaires assessing motivations for weight loss, which could be applied to various age groups, were identified. All the questionnaires presented items related to appearance and health as the main motivation for weight loss. In addition to these motivations, the questionnaires also included items related to improved sports performance, self-confidence, participation in important social events, family and social pressure, and fitting into different clothes. The most evaluated measurement properties in the studies were internal consistency, reliability, content validity, and construct validity. Regarding internal consistency, one was rated as excellent, one as fair, and three as poor. For reliability, two were rated as being of fair quality, and one as of poor quality. Two studies analyzed the content validity and the questionnaires were rated as being of poor methodological quality. Regarding structural validity, one was rated as excellent, another as fair, and another as poor quality. Only the Weight Loss Motivation Questionnaire presented excellent methodological quality for most of the analyzed criteria. There is a need to develop questionnaires that are of better methodological quality to assess motivations for weight loss. Instruments targeting the adolescent population should also be developed.


Subject(s)
Motivation , Obesity/therapy , Surveys and Questionnaires/standards , Weight Reduction Programs , Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Obesity/psychology
11.
BMC Pediatr ; 18(1): 364, 2018 11 21.
Article in English | MEDLINE | ID: mdl-30463551

ABSTRACT

BACKGROUND: Adolescents with overweight and obesity report various motivations for weight loss other than the desire for better health. However, there is little evidence regarding the main motivations for weight loss in adolescents. The present systematic review aimed to identify the motivations for weight loss in adolescents with overweight and obesity. METHODS: A systematic search for original articles published up to December 2016 was carried out in the PubMed, Scopus, LILACS, and ADOLEC databases. The terms used in the search were: motivation, motive, reason, "weight loss," "lose weight," and adolescent. RESULTS: Six studies (all cross-sectional) met the selection criteria and were included in the review. The instruments used to assess the participants' motivations for weight loss were interviews and questionnaires with open questions. Seventeen motivations for weight loss were identified, the main ones being better health, esthetic/cosmetic reasons, improvements in self-esteem, and avoidance of provocation/bullying. CONCLUSIONS: The results of the present review show the need for validated instruments to assess the motivations for weight loss in adolescents with overweight and obesity. Moreover, the high frequency of motivations for weight loss related to appearance and social acceptance evidences the need for multidisciplinary weight loss interventions that consider not only the biological factors, but also the psychological and social aspects.


Subject(s)
Motivation , Overweight/psychology , Pediatric Obesity/psychology , Weight Loss , Adolescent , Bullying , Esthetics , Health Surveys , Healthy Lifestyle , Humans , Interviews as Topic , Physical Fitness , Self Concept
12.
Arch Endocrinol Metab ; 62(4): 480-484, 2018 Aug.
Article in English | MEDLINE | ID: mdl-30304114

ABSTRACT

OBJECTIVE: The present study has investigated the association between low-density lipoprotein receptor-related protein 5 (LRP5) 4037C>T polymorphism and type 1 diabetes mellitus (T1DM) susceptibility in a Brazilian population. SUBJECTS AND METHODS: A total number of 134 T1DM patients and 180 normoglycemic individuals (NG) aged 6-20 years were studied. Glycated hemoglobin and glucose levels were determined. Genotyping of LRP5 4037C>T (rs3736228) was performed. RESULTS: T1DM patients showed poor glycemic control. Genotypes in the codominant (CT: OR = 2.99 [CI 95%: 1.71-5.24], p < 0.001; TT: OR = 5.34 [CI 95%: 1.05-2702], p < 0.001), dominant (CT + TT: OR = 3.16 [CI 95%: 1.84-5.43], p < 0.001) and log-additive (OR = 2.78 [CI 95%: 1.70-4.52], p < 0.001) models, and LRP5 4037T allele (OR = 2.88, [CI 95%: 1.78-4.77], p < 0.001) were associated with an increased risk of developing T1DM. LRP5 4037CT and CT+TT carriers in T1DM group showed higher concentrations of serum glucose and glycated hemoglobin when compared with CC carriers. CONCLUSION: The LRP5 4037C>T may represent a candidate for T1DM susceptibility, as well as poor glycemic control.


Subject(s)
Diabetes Mellitus, Type 1/genetics , Genetic Predisposition to Disease/genetics , Low Density Lipoprotein Receptor-Related Protein-5/genetics , Polymorphism, Genetic/genetics , Adolescent , Blood Glucose/analysis , Blood Glucose/metabolism , Brazil , Child , Female , Gene Frequency/genetics , Genetic Association Studies , Genotype , Glycated Hemoglobin/analysis , Glycated Hemoglobin/metabolism , Humans , Low Density Lipoprotein Receptor-Related Protein-5/metabolism , Male
13.
Rev. cuba. oftalmol ; 31(3)jul.-set. 2018.
Article in Spanish | CUMED, LILACS | ID: biblio-1508353

ABSTRACT

Objetivo: Determinar la efectividad de la terapia visual con el uso del PlayStation PortableTM en la ambliopía. Método: Se incluyeron 40 pacientes de 5-10 años de edad con ambliopía estrábica, anisometrópica o ambas, aleatorizados en 4 grupos según el tipo de terapia a utilizar (10 pacientes por grupo): grupo 1, PlayStation PortableTM y lentes rojo-verde; grupo 2, PlayStation PortableTM y lentes con vidrio esmerilado en el ojo fijador (no ambliope); grupo 3, PlayStation PortableTM y parche oclusivo en el ojo fijador; grupo 4, parche oclusivo en el ojo fijador sin el PlayStation PortableTM. Todos los pacientes utilizaron su refracción. Las actividades de los grupos 1 al 3 incluyeron jugar videojuegos y ver películas 1-2 horas al día; el grupo 4 podía realizar cualquier actividad. Se valoró la agudeza visual mejor corregida semanalmente, hasta completar 3 meses de tratamiento. En el postratamiento se valoró la agudeza visual mejor corregida mensualmente durante 3 meses. Resultados: En total se estudiaron 40 pacientes, de los cuales el 60 por ciento fueron del sexo femenino, con un promedio de edad de 8,2 años, rango de 5-10 años. El tipo más frecuente de ambliopía fue la estrábica (55 por ciento), seguido de la anisometrópica (37,5 por ciento) y ambas (7,5 por ciento). En cuanto al ojo afectado, en el 62,5 por ciento fue el ojo izquierdo y en el 37,5 por ciento el ojo derecho. Conclusiones: En este estudio el grupo con mejores resultados fue el de filtro rojo-verde. Al suspender la terapia se observó un deterioro visual en los cuatro grupos, sin regresar a la basal. Se demuestra que el PlayStation PortableTM funciona como terapia en la ambliopía con una mejoría en la agudeza visual mejor corregida(AU)


Objective: Determine the effectiveness of visual therapy with PlayStation PortableTM for amblyopia. Methods: The study sample was composed of 40 patients aged 5-10 years with strabismic amblyopia, anisometropic amblyopia or both, randomized to 4 groups according to the therapy to be used (10 patients per group): Group 1: PlayStation PortableTM and red-green lenses; Group 2: PlayStation PortableTM and frosted glass lenses on the fixating (non-amblyopic) eye; Group 3: PlayStation PortableTM and occlusive patch on the fixating eye; Group 4: occlusive patch on the fixating eye without PlayStation PortableTM. All the patients used their refraction. The activities performed by Groups 1-3 included playing video games and watching movies 1-2 hours per day; Group 4 could perform any activity. Best corrected visual acuity was measured weekly until completing 3 months of treatment. In the post-treatment period best corrected visual acuity was measured monthly for 3 months. Results: A total 40 patients were studied, of whom 60 percent were female, with a mean age of 8.2 years, range of 5-10 years. Strabismic amblyopia was the most common type (55 percent), followed by anisometropic amblyopia (37,5 percent) and both (7.5 percent). The affected eye was the left eye in 62.5 percent and the right eye in 37.5 percent. Conclusions: It was found that PlayStation PortableTM is effective as therapy for amblyopia, improving best corrected visual acuity. The group with the best results was the red-green filter group. Upon suspension of the therapy, visual deterioration was observed in the 4 groups, without returning to baseline values(AU)


Subject(s)
Humans , Female , Child , Amblyopia/therapy , Video Games/adverse effects , Strabismus/etiology
14.
Arch. endocrinol. metab. (Online) ; 62(4): 480-484, July-Aug. 2018. tab
Article in English | LILACS | ID: biblio-1038491

ABSTRACT

ABSTRACT Objective: The present study has investigated the association between low-density lipoprotein receptor-related protein 5 (LRP5) 4037C>T polymorphism and type 1 diabetes mellitus (T1DM) susceptibility in a Brazilian population. Subjects and methods: A total number of 134 T1DM patients and 180 normoglycemic individuals (NG) aged 6-20 years were studied. Glycated hemoglobin and glucose levels were determined. Genotyping of LRP5 4037C>T (rs3736228) was performed. Results: T1DM patients showed poor glycemic control. Genotypes in the codominant (CT: OR = 2.99 [CI 95%: 1.71-5.24], p < 0.001; TT: OR = 5.34 [CI 95%: 1.05-2702], p < 0.001), dominant (CT + TT: OR = 3.16 [CI 95%: 1.84-5.43], p < 0.001) and log-additive (OR = 2.78 [CI 95%: 1.70-4.52], p < 0.001) models, and LRP5 4037T allele (OR = 2.88, [CI 95%: 1.78-4.77], p < 0.001) were associated with an increased risk of developing T1DM. LRP5 4037CT and CT+TT carriers in T1DM group showed higher concentrations of serum glucose and glycated hemoglobin when compared with CC carriers. Conclusion: The LRP5 4037C>T may represent a candidate for T1DM susceptibility, as well as poor glycemic control.


Subject(s)
Humans , Male , Female , Child , Adolescent , Polymorphism, Genetic/genetics , Genetic Predisposition to Disease/genetics , Diabetes Mellitus, Type 1/genetics , Low Density Lipoprotein Receptor-Related Protein-5/genetics , Blood Glucose/analysis , Blood Glucose/metabolism , Brazil , Glycated Hemoglobin/analysis , Glycated Hemoglobin/metabolism , Genetic Association Studies , Low Density Lipoprotein Receptor-Related Protein-5/metabolism , Gene Frequency/genetics , Genotype
15.
Braz. J. Pharm. Sci. (Online) ; 53(4): e00060, 2017. tab
Article in English | LILACS | ID: biblio-889416

ABSTRACT

ABSTRACT The aim of the present study was to investigate the bone mineral density (BMD) of patients with type 1 Diabetes mellitus (T1DM). We also assessed the association between osteoprotegerin (OPG) genetic polymorphisms and BMD. Genotyping was performed for 1181G>C and 163A>G OPG polymorphisms by allelic discrimination in 119 patients with T1DM and 161 normoglycemic (NG) individuals, aged 6 to 20 years old. Glycemic control, serum parameters of bone metabolism and BMD were evaluated. T1DM patients showed low BMD, poor glycemic control and decreased total calcium values when compared to controls (p < 0.05). For all the polymorphisms studied, the genotype and allele frequencies in patients with T1DM were not significantly different from the controls. In patients with T1DM, carriers of OPG 1181CC showed higher concentrations of ionized calcium compared to patients with GG+GC genotypes. These results suggest that low BMD is associated with poor glycemic control in T1DM. Despite the lack of a detected association between OPG polymorphisms and BMD in these patients, the increased ionized calcium in those carrying OPG 1181CC suggests a possible increase in osteoclastogenesis, a conclusion that may be supported by the lower BMD observed in these subjects.


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Polymorphism, Genetic , Bone Density/genetics , Glycemic Index/immunology , Diabetes Mellitus, Type 1/classification , Osteogenesis Imperfecta/prevention & control , Osteoprotegerin , Genotyping Techniques/methods
16.
Diabetes Metab Res Rev ; 32(6): 589-95, 2016 09.
Article in English | MEDLINE | ID: mdl-26663878

ABSTRACT

BACKGROUND: The negative effects of type 1 diabetes (T1D) on growth factors of bone metabolism lead to a reduction in bone mineral density. This study aimed to evaluate the association between bone mineral density and insulin-like growth factor 1 (IGF1), insulin-like growth factor 1 receptor (IGF1R) and transforming growth factor beta 1 (TGFB1) expressions in children and adolescents with T1D. Moreover, the influences of age at diagnosis, time since diagnosis, glycaemic control and albuminuria on bone mineral density were investigated. METHODS: Eighty-six T1D children/adolescents (T1D group) and ninety normoglycaemic controls (normoglycaemic group) were included. T1D patients were analysed as a whole and also in subsets of patients with good glycaemic control (glycated hemoglobin concentration ≤7.5%) and with poor glycaemic control (glycated hemoglobin concentration >7.5%). Bone mineral density was assessed by dual energy x-ray absorptiometry. Glycaemic control, renal function and bone markers were also assessed. IGF1, IGF1R and TGFB1 expressions were determined in peripheral blood mononuclear cells by real-time polymerase chain reaction. RESULTS: Patients with T1D showed low bone mineral density and poor glycaemic control. Serum total calcium and urinary albumin-to-creatinine ratio were higher in patients with poor glycaemic control compared to those with good glycemic control (p = 0.003 and p = 0.035, respectively). There was a reduction of IGF1, IGF1R and TGFB1 expressions in the T1D patients and in the subset with poor glycaemic control compared to normoglycaemic controls (p < 0.05). CONCLUSIONS: The decreased IGF1, IGF1R and TGFB1 expressions in the T1D patients, who presented with T1D at an early age, had been diagnosed with T1D for a longer time, had poor glycaemic control and albuminuria may contribute to low bone mineral density. Copyright © 2016 John Wiley & Sons, Ltd.


Subject(s)
Bone Density , Diabetes Mellitus, Type 1/pathology , Insulin-Like Growth Factor I/metabolism , Leukocytes, Mononuclear/metabolism , Receptors, Somatomedin/metabolism , Transforming Growth Factor beta1/metabolism , Adolescent , Adult , Biomarkers/analysis , Blood Glucose/analysis , Case-Control Studies , Child , Diabetes Mellitus, Type 1/metabolism , Female , Follow-Up Studies , Glycated Hemoglobin/analysis , Humans , Insulin-Like Growth Factor I/genetics , Male , Prognosis , Receptor, IGF Type 1 , Receptors, Somatomedin/genetics , Transforming Growth Factor beta1/genetics
17.
J. health inform ; 7(4): 127-133, out.-dez. 2015. ilus, tab
Article in Portuguese | LILACS | ID: lil-768584

ABSTRACT

A crescente incidência do diabetes mellitus (DM) na população mundial demanda recursos e atenção ao diagnóstico e seguimento adequados, que reduzam a morbimortalidade. A monitorização glicêmica é uma das chaves para o bom controle, e com a universalização das tecnologias de informação e comunicação (TICs), principalmente através de celulares com acesso à internet e capacidade para processamento de dados (smartphones), e dispositivos portáteis (tablets), vem proporcionando ferramentas para o gerenciamento ambulatorial da doença. Buscando levantar em bases de dados o perfil dos aplicativos (apps) destinados a estes aparelhos, o objetivo principal foi descrever as características básicas destes aplicativos e visualizar a tendência de incorporação de recursos esperada para um futuro próximo. A análise do material obtido, provavelmente devida à atualização dinâmica da área, não permitiu quantificar precisamente os benefícios da mHealth (?saúde móvel?) em diabetes, mas há consenso que as perspectivas são bastante animadoras.


The worldwide increasing incidence of diabetes mellitus (DM) demand resources and attention to proper diagnosis and follow-up, to reduce morbidity and mortality. The glucose monitoring is one of the keys to good control, and the widespread of information and communication technologies (ICT), especially through mobile phones with internet access and capacity for data processing (smartphones), and portable devices (tablets), has been providing tools for the outpatient management of the disease. Seeking to raise the profile databases of applications (apps) for these devices, the main objective was to describe the basic characteristics of these applications and analyze the trend of incorporating features expected for the near future. The analysis of the material obtained, probably due to the dynamic update of the area did not allow precisely quantify the benefits of mHealth (?mobile health?) in diabetes , but there is consensus that the prospects are very encouraging.


El aumento de la incidencia de la diabetes mellitus (DM) los recursos de la demanda en todo el mundo y la atención al correcto diagnóstico y seguimiento, para reducir la morbilidad y la mortalidad. El monitoreo de la glucosa es una de las claves para un buen control, y la universalización de la información y la comunicación (TIC), especialmente a través de los teléfonos móviles con acceso a Internet y capacidad de procesamiento de datos (teléfonos inteligentes) las tecnologías y dispositivos portátiles (tabletas), ha estado proporcionando herramientas para el manejo ambulatorio de la enfermedad. Buscando elevar las bases de datos de perfiles de aplicaciones (apps) para estos dispositivos, el principal objetivo fue describir las características básicas de estas aplicaciones y ver la tendencia de incorporar características que se esperan para el futuro cercano. El análisis del material obtenido, probablemente debido a la actualización dinámica de la zona no permitió cuantificar con precisión los beneficios de mHealth ( ?salud móvil? ) en la diabetes, pero hay consenso en que las perspectivas son muy alentadoras.


Subject(s)
Mobile Applications , Blood Glucose Self-Monitoring , Diabetes Mellitus , Information Technology , Telemedicine
18.
Diabetes Metab Res Rev ; 31(5): 500-6, 2015 Jul.
Article in English | MEDLINE | ID: mdl-25384728

ABSTRACT

BACKGROUND: Pro-inflammatory cytokines, such as interleukin-6 (IL-6), have been considered as key factors in type 1 diabetes mellitus (T1DM) and diabetic nephropathy, thus, our aim was to investigate the association of IL6-174G>C (rs1800795) and -634C>G (rs1800796) polymorphisms with T1DM susceptibility and diabetic nephropathy. METHODS: These polymorphisms were analyzed in 144 children and adolescents with T1DM and 173 normoglycemic control subjects. Glycemic control, laboratory parameters of kidney function and serum lipids were evaluated. By studying only T1DM patients, we evaluated the polymorphisms associated with relevant biochemical parameters in various genetic models. RESULTS: Type 1 diabetes mellitus patients showed poor glycemic control and albumin-to-creatinine ratio, total cholesterol and LDL-cholesterol levels increased when compared with normoglycemic subjects (p < 0.001, p = 0.004 and p < 0.001, respectively). IL6-174C allele was associated with an increased risk of developing T1DM (OR = 1.53, CI = 1.01-2.31, p = 0.044). In the T1DM group, IL6-174CC carriers showed higher concentrations of glycated hemoglobin (p = 0.029), albumin-to-creatinine ratio (p = 0.021), total cholesterol (p = 0.010), and LDL-cholesterol (p = 0.002), when compared with GG+GC carriers. No association was found for the IL6-634C>G polymorphism. CONCLUSIONS: These results suggest that IL6-174G>C may contribute to T1DM and increased albumin-to-creatinine ratio as well as to poor glycemic control and hyperlipidemia.


Subject(s)
Albuminuria/genetics , Diabetes Mellitus, Type 1/genetics , Diabetic Nephropathies/genetics , Hyperlipidemias/genetics , Interleukin-6/genetics , Adolescent , Albuminuria/urine , Alleles , Case-Control Studies , Child , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Cholesterol, VLDL/blood , Creatinine/urine , Diabetes Mellitus, Type 1/complications , Diabetes Mellitus, Type 1/metabolism , Diabetic Nephropathies/etiology , Diabetic Nephropathies/urine , Female , Genetic Predisposition to Disease , Genotype , Glycated Hemoglobin/metabolism , Humans , Hyperlipidemias/blood , Hyperlipidemias/complications , Male , Polymorphism, Genetic , Polymorphism, Single Nucleotide , Promoter Regions, Genetic/genetics , Triglycerides/blood , Young Adult
19.
Rev Paul Pediatr ; 32(3): 229-35, 2014 Sep.
Article in Portuguese | MEDLINE | ID: mdl-25479854

ABSTRACT

OBJECTIVE: To identify the contribution of anthropometric variables to predict the maturational stage in young males. METHODS: Cross-sectional study that enrolled 190 male subjects aged between eight and 18 years, randomly selected from public and private schools in Natal, Northeast Brazil. Thirty-two anthropometric variables were measured following the recommendations of the International Society for the Advancement of Kineanthropometry (ISAK). The assessment of sexual maturation was based on the observation of two experienced experts, who identified the pubertal development according to Tanner guidelines (1962). RESULTS: The anthropometric variables showed a significant increase of their values during the advancement of pubertal development (p<0.05). The following variables showed the best value for prediction of maturational groups: sitting height, femoral biepicondylar diameter, forearm girth, triceps skinfold, tibiale laterale and acromiale-radiale bone lenghts. These variables were able to estimate the pubertal stages in 76.3% of the sujects. CONCLUSION: The anthropometric characteristics showed significant differences between the moments of maturational stages, being found, representatively, seven variables that best predict the stages of sexual maturation.


Subject(s)
Body Weights and Measures , Sexual Maturation , Adolescent , Child , Cross-Sectional Studies , Humans , Male
20.
Rev. paul. pediatr ; 32(3): 229-235, 09/2014. tab, graf
Article in Portuguese | LILACS | ID: lil-724087

ABSTRACT

Objetivo: Identificar a contribuição de variáveis antropométricas para a predição do estádio maturacional em jovens do sexo masculino. Métodos: Estudo transversal, sendo investigados 190 sujeitos do sexo masculino, com idades entre 8 e 18 anos, selecionados aleatoriamente em escolas públicas e privadas de Natal. Foram selecionadas 32 variáveis antropométricas, todas avaliadas de acordo com as recomendações da International Society for the Advancement of Kineanthropometry (ISAK). A avaliação da maturação sexual se baseou na observação de dois especialistas experientes, que identificaram o desenvolvimento da genitália, segundo as recomendações propostas por Tanner (1962). Resultados: As variáveis antropométricas apresentaram um aumento significativo no decorrer do avanço do desenvolvimento puberal (p<0,05). As variáveis de altura troncocefálica, diâmetro biepicôndilo femural, perímetro de antebraço, dobra cutânea de tríceps, alturas ósseas tibial e acrômio-radial apresentaram a melhor relação para predição dos grupos maturacionais, sendo responsáveis por estimar os estádios puberais com índice de 76,3% de chance de acerto. Conclusão: As características antropométricas apresentaram diferenças significativas entre os momentos dos estádios maturacionais, sendo encontradas, de forma representativa, sete variáveis que melhor predizem os estádios de maturação sexual...


Objective: To identify the contribution of anthropometric variables to predict the maturational stage in young males. Methods: Cross-sectional study that enrolled 190 male subjects aged between eight and 18 years, randomly selected from public and private schools in Natal, Northeast Brazil. Thirtytwo anthropometric variables were measured following the recommendations of the International Society for the Advancement of Kineanthropometry (ISAK). The assessment of sexual maturation was based on the observation of two experienced experts, who identified the pubertal development according to Tanner guidelines (1962). Results: The anthropometric variables showed a significant increase of their values during the advancement of pubertal development (p<0.05). The following variables showed the best value for prediction of maturational groups: sitting height, femoral biepicondylar diameter, forearm girth, triceps skinfold, tibiale laterale and acromiale-radiale bonelenghts. These variables were able to estimate the pubertal stages in 76.3% of the sujects. Conclusion: The anthropometric characteristics showed significant differences between the moments of maturational stages, being found, representatively, seven variables that best predict the stages of sexual maturation...


Subject(s)
Humans , Male , Child , Adolescent , Anthropometry , Discriminant Analysis , Sexual Maturation
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