28 results on '"Guerra, Gil"'
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2. Efectos de la enfermedad de Parkinson en el procesamiento de información fonológica y semántica durante el acceso al léxico. Una revisión actual
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Novoa Lagos, Abraham Benjamín, Véliz de Vos, María Mónica, and Guerra Gil, Ernesto Eduardo
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- 2023
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3. Patient-reported convenience and effectiveness of telehealth for breast cancer management.
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Raghavendra, Akshara Singareeka, Jennings, Kristofer, Guerra, Gil, Tripathy, Debu, and Karuturi, Meghan S
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BREAST tumor treatment ,HEALTH services accessibility ,CANCER treatment ,MEDICAL quality control ,ACADEMIC medical centers ,OUTPATIENT services in hospitals ,QUESTIONNAIRES ,PRIVACY ,BREAST tumors ,CANCER patients ,DESCRIPTIVE statistics ,CHI-squared test ,AGE distribution ,FAMILY history (Medicine) ,TELEMEDICINE ,SURVEYS ,RACE ,CANCER chemotherapy ,ELECTRONIC health records ,MARITAL status ,PATIENT satisfaction ,CONFIDENCE intervals ,TUMOR classification ,PATIENTS' attitudes ,SPECIALTY hospitals ,MEDICAL ethics ,OVERALL survival - Abstract
Background Before the coronavirus disease 2019 (COVID-19) pandemic, telehealth was rarely used for breast cancer management at tertiary care centers. We sought to examine patient satisfaction, experiences, preferences, and perceived effectiveness and technical quality of telehealth visits in follow-up patients receiving routine outpatient care in the breast medical oncology practice at The University of Texas MD Anderson Cancer Center. Methods We administered a survey to 60 follow-up patients for a duration of 9 months (January 5, 2021 to October 27, 2021) who had at least one telehealth consultation during the COVID-19 pandemic, from April 10, 2020 to October 21, 2021. Descriptive statistics were then generated for each question, each domain, and overall survey scores. Subgroup comparisons within patient populations were done using the chi-square or t -test when appropriate. Results Among the 60 participants, 49 (82%) were undergoing standard follow-up during active treatment for either early-stage or metastatic breast cancer. Telehealth and in-person office visits were considered equivalent in terms of quality of communication by 43 participants (72%). Most participants (n = 49, 82%) felt equally cared for during telehealth and in-person visits, and 40 participants (67%) reported feeling connected to their healthcare professional during both telehealth and in-person visits. In addition, 28 participants (47%) felt that the duration of telehealth visits was similar to in-person visits, 46 (77%) found both telehealth and in-person visits equally comfortable for discussing sensitive topics, 39 (65%) considered telehealth visits convenient, and 42 (70%) perceived the overall quality of care for telehealth to be similar to that of in-person visits. Participants expressed high satisfaction with telehealth appointments, with 42 (70%) rating their experience as very satisfying. Most participants (n = 44, 73%) expressed a strong likelihood of participating in telehealth appointments for breast cancer follow-up care in the future. Conclusions Our results indicate that telehealth can serve as an effective and satisfactory approach for delivering healthcare services to patients with breast cancer requiring follow-up care. The positive experiences and willingness to continue using telehealth indicate its potential for improving access to care and patient outcomes. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Éxodo en personal de Atención Primaria de Salud
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Reinaldo Marín Reyes, Gilda Scull Scull, Juana Govín Scull, and Estela Guerra Gil
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éxodo del personal ,atención primaria de salud ,Medicine ,Medicine (General) ,R5-920 - Abstract
Se realizó un estudio descriptivo y transversal al universo de 25 trabajadores, que causaron baja en el segundo semestre del año 2011, en la Unidad Presupuestada de Salud Pública del municipio de San Nicolás, provincia Mayabeque, con el objetivo de determinar cómo se manifiesta el funcionamiento de la Atención Primaria de Salud en relación al éxodo del personal, así como las principales causas del mismo en la entidad. Se manifiesta el éxodo de forma diferente según la edad, nivel cultural, siendo los jóvenes los que más fluctuaron. La categoría ocupacional de operarios es la más afectada. El déficit de recursos humanos por esta causa afecta el cumplimiento de programas de salud, ejemplo: el de enfermedades transmisibles. El mayor éxodo ocurrió en el segundo trimestre del segundo semestre del año, en la unidad policlínico y la causal fue problemas del trabajador en el centro de trabajo por la inconformidad con el salario, factor importante en el estímulo al trabajador. Por lo que se concluye que el éxodo de los trabajadores estuvo dado por la inconformidad con el salario y la falta de estímulo y cómo este fenómeno puede deprimir los indicadores de la calidad de la Atención Primaria de Salud. Se recomienda reforzar el trabajo político ideológico con los trabajadores y se realicen futuros estudios al salario.
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- 2012
5. Screening of autosomal gene deletions in patients with hypogonadotropic hypogonadism using multiplex ligation-dependent probe amplification: detection of a hemizygosis for the fibroblast growth factor receptor 1
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Trarbach, Ericka Barbosa, Teles, Milena Gurgel, Costa, Elaine Maria Frade, Abreu, Ana Paula, Garmes, Heraldo Mendes, Guerra, Gil, Junior, Baptista, Maria Tereza Matias, de Castro, Margaret, Mendonca, Berenice Bilharinho, and Latronico, Ana Claudia
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- 2010
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6. H28+C Insertion in the CYP21 Gene: A Novel Frameshift Mutation in a Brazilian Patient with the Classical Form of 21-Hydroxylase Deficiency
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Lau, Ivy F., Soardi, Fernanda C., Lemos-Marini, Sofia H. V., Guerra, Gil, Jr., Baptista, Maria Tereza M., and De Mello, Maricilda P.
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- 2001
7. Gonadotropin-Independent Precocious Puberty Due to Luteinizing Hormone Receptor Mutations in Brazilian Boys: A Novel Constitutively Activating Mutation in the First Transmembrane Helix*
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Latronico, Ana Claudia, Shinozaki, Hiromitsu, Guerra, Gil, Jr, Pereira, Maria Adelaide A, Lemos Marini, Sofia Helena V, Baptista, Maria Tereza M, Arnhold, Ivo Jorge P, Fanelli, Francesca, Mendonca, Berenice B, and Segaloff, Deborah L
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- 2000
8. Female pseudohermaphroditism due to classical 21-hydroxylase deficiency in a girl with Turner syndrome
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Maciel-Guerra, Andréa Trevas, Guerra, Gil, Jr., Marini, Sofia Helena V. L., Baptista, Maria Tereza Matias, and Marques-de-Faria, Antonia Paula
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- 1997
9. Family-based association of HLA class II alleles and haplotypes with type I diabetes in Brazilians reveals some characteristics of a highly diversified population
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Volpini, Walkyria M.G, Testa, Giuliana V, Marques, Sı́lvia B.D, Alves, Lais I, Silva, Maria Elizabeth R, Dib, Sérgio A, Guerra, Gil, Jr, Paulino, Maria Fernanda V.M, Marini, Sofia H.V.L, Persoli, Lı́gia B.L, and Caillat-Zucman, Sophie
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- 2001
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10. Partial remission in Brazilian children and adolescents with type 1 diabetes. Association with a haplotype of class II human leukocyte antigen and synthesis of autoantibodies.
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Camilo, Daniela S., Pradella, Fernando, Paulino, Maria Fernanda, Baracat, Emilio C. E., Marini, Sofia H., Guerra, Gil, Pavin, Elizabeth J., Parisi, Candida, Longhini, Ana Leda F., Marques, Silvia B., Guariento, Edilaine G., Lieber, Sofia R., Macedo, Carlos Fernando, Gama e Silva, Letícia, Farias, Alessandro S., Santos, Leonilda M. B., and Volpini, Walkyria M. G.
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AUTOANTIBODY analysis ,INSULIN therapy ,AGE factors in disease ,ETHNIC groups ,GLYCOSYLATED hemoglobin ,INSULIN ,TYPE 1 diabetes ,PEDIATRICS ,HLA-B27 antigen ,DISEASE remission ,DISEASE prevalence ,HAPLOTYPES ,GENOTYPES - Abstract
Objective: Characterization of partial remission using the insulin dose‐adjusted HbA1c (IDAA1c) ≤ 9 definition in a multiethnic Brazilian population of children and adolescents with type 1 diabetes (T1D), in addition with the determination of both Class II HLA genotype and autoantibodies. Methods: We analyzed the prevalence of partial remission in 51 new‐onset T1D patients with a median time follow‐up of 13 months from diagnosis. For this study, anti‐GAD65, anti‐IA2 and HLA class II genotyping were considered. Results: Partial remission occurred in 41.2% of T1D patients until 3 months after diagnosis, mainly in those aged 5‐15 years. We have demonstrated a significant increase in the haplotypes of class II HLA DRB1*0301‐DQB1*0201 in children and adolescents with a partial remission phase of the disease (42.9% vs 21.7% in non‐remitters, P =.0291). This haplotype was also associated with the reduction of anti‐IA2 antibodies production. Homozygote DRB1*03‐DQB1*0201/DRB1*03‐DQB1*0201 children had the lowest prevalence of IA‐2A antibodies (P =.0402). However, this association does not correlate with the time of the remission phase. Conclusion: Although the number of patients studied was reduced, our data suggested that the association between genetics and decrease in antibody production to certain islet auto‐antigen may contribute, at least in part, to the remission phase of T1D. [ABSTRACT FROM AUTHOR]
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- 2020
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11. Athletic performance and body composition in cadets of the Brazilian Army
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Pascoa, Mauro, Cirolini, Vagner, Melloni, Mauro, Guerra, Gil, Jr, and Gonçalves, Ezequiel
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- 2017
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12. Severe hypertriglyceridemia is related to episodes of epididymitis.
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Takata, Racquel Tiemi, Schreiber, Roberto, Guerra, Gil, and de Faria, Eliana C.
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- 2009
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13. Impact of microbial and chemical pollution in Cuban freshwater ecosystems: strategies for environmental recovery.
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Carballo, María E., Heydrich, Mayra, Rojas, Nidia, Salgado, Irina, Romeu, Beatriz, Manzano, Ana M., Larrea, Jeny, Domínguez, Osmel, Martínez, Armando, Sánchez, María I., Cruz, Mario, Guerra, Gil Da, Rojas, Marcia, and Ramos, Miguel
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WATER pollution , *MICROORGANISMS , *HEAVY metals & the environment , *POLLUTION , *BIOTIC communities , *ECOSYSTEM management ,ENVIRONMENTAL aspects - Abstract
Contamination of water resources requires of systematic environmental actions, based on integral researches which allow proposing biological process as ecological and economical alternatives in order to decrease its negative impact and to guarantee the integrity of aquatic ecosystems. The objectives of this paper were to determine the microbial and chemical water pollution in Almendares river, and to evaluate the microbial capacity for decrease or eliminate chemical contaminants present on waste waters, natural ecosystems and industrial wastes. The microbiological and chemical pollution of the Almendares basin exceeded maximum permissible values for recreational waters according to Cuban standards, respect to total and faecal coliforms, to the presence of clinical significance multi-resistant micro-organisms against antimicrobial agents, and to nitrates, ammonium, phosphates and heavy metals concentrations. It was demonstrated the potential of monocultures and microbial consortiums for the elimination of heavy metals and the capacity of White Rot Fungi to degrade industrial textil colorants. The results indicate the contamination degree in freshwater systems in Cuba, a threat for biodiversity and a risk for human health. Therefore, these results permit to dispose of a microbial collection which represents potential candidates for biotechnological applications, which contribute to the protection of the environment and the preservation of waters as a valuable natural resource. [ABSTRACT FROM AUTHOR]
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- 2011
14. Symptom Research in Pediatric Oncology: Methodological Challenges and Working Solutions (741)
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Zhukovsky, Donna, Cohen, Marlene, Rozmus, Cathy, Palmer, Lynn J., Robert, Rhonda, Wells, Robert J., Guerra, Gil, Kilgore, Kelly, Allo, Julio, Apraku, Winnie, and Bruera, Eduarto
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- 2012
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15. Insights from a Wolfram syndrome cohort: clinical and molecular findings from a specialized diabetes reference center.
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Lopes CP, Gonçalves GF, Paulino MFVM, Esquiaveto-Aun AM, de Mello MP, Pavin EJ, Breder ISS, Pu MZMH, de Lemos-Marini SHV, and Guerra G
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- Humans, Male, Female, Retrospective Studies, Brazil, Child, Preschool, Child, Adolescent, Membrane Proteins genetics, Cohort Studies, Infant, Mutation, Young Adult, Age of Onset, Adult, Wolfram Syndrome genetics, Wolfram Syndrome diagnosis
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Objective: Considering the rarity and clinical and molecular diversity of Wolfram syndrome (WS), the objective of this study was to identify patients with a clinical presentation suggestive of WS following up at a single Brazilian diabetes service and analyze their clinical and molecular characteristics., Subjects and Methods: The study included all patients with a clinical presentation of WS following up between 1991 and 2022 with early-onset diabetes mellitus and other WS signs and symptoms. A retrospective analysis was conducted, including patients' age, sex, consanguinity, age at symptom onset, diagnosis of diabetes mellitus, optic atrophy, diabetes insipidus, neurological and psychiatric disorders, hearing loss, urinary disorders, hypogonadism, and WFS1 molecular analysis., Results: Eight patients were identified, all of whom were diagnosed with diabetes mellitus at an average age of 3.7 years. Optic atrophy, diabetes insipidus, and hearing loss were common, while psychiatric and neurological alterations were observed in some cases. Genetic analysis revealed pathogenic variants in homozygosity or compound heterozygosity. The most frequent variant was p. Val412Serfs29, present in five of the seven families., Conclusions: This study represents the second-largest Brazilian sample of WS and is the first cohort from a single center in Southeast Brazil. The patients had an early, severe, and complete clinical presentation. The genetic variants identified were consistent with previous literature descriptions. The variant p. Val412Serfs29 was particularly common in this cohort, highlighting its relevance in the region., Competing Interests: Disclosure: no potential conflict of interest relevant to this article was reported.
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- 2024
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16. Normal ambulatory blood pressure in young adults with 21-hydroxylase enzyme deficiency undergoing glucocorticoid replacement therapy.
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Borges JH, Camargo DA, Sewaybricker LE, Santoro RI, de Oliveira DM, de Lemos-Marini SHV, Geloneze B, Guerra G Júnior, and Gonçalves EM
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- Adolescent, Adult, Female, Humans, Male, Young Adult, Blood Pressure physiology, Blood Pressure Monitoring, Ambulatory, Case-Control Studies, Hypertension, Steroid 21-Hydroxylase, Adrenal Hyperplasia, Congenital drug therapy, Adrenal Hyperplasia, Congenital complications, Glucocorticoids therapeutic use
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Objective: Herein, we compared ambulatory blood pressure (ABP) between young adults with congenital adrenal hyperplasia (CAH) due to 21-hydroxylase enzyme (21OHase) deficiency and a control group. Additionally, we analyzed correlations between the glucocorticoid dose and androgen levels and ABP parameters., Subjects and Methods: This case-control study included 18 patients (6 males and 12 females) and 19 controls (8 males and 11 females) matched by age (18-31 years). ABP monitoring was used to estimate blood pressure (BP) over a 24-h period., Results: No difference was noted between patients and controls in terms of systolic BP (males, 115.5 ± 5.6 vs. 117.0 ± 9.3, P = 0.733; and females, 106.4 ± 7.9 vs. 108.4 ± 7.6, P = 0.556, respectively) and diastolic BP during 24 h (males, 62.8 ± 7.5 vs. 66.2 ± 5.6, P = 0.349; and females, 62.7 ± 4.9 vs. 62.3 ± 4.9, P = 0.818, respectively). Systolic and diastolic BP and pulse pressure during daytime and nocturnal periods were similar between patients and controls. Furthermore, no differences were detected in the percentage of load and impaired nocturnal dipping of systolic and diastolic BP between patients and controls during the 24-h period. Additionally, the glucocorticoid dose (varying between r = -0.24 to 0.13, P > 0.05) and androgens levels (varying between r = 0.01 to 0.14, P > 0.05) were not associated with ABP parameters., Conclusion: No signs of an elevated risk for hypertension were observed based on ABP monitoring in young adults with CAH attributed to 21OHase deficiency undergoing glucocorticoid replacement therapy.
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- 2023
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17. Anthropometry and physical appearance can be associated with quality of life in Brazilian women with Turner syndrome.
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Reis CT, Macedo MC, Morcillo AM, Guerra G Junior, and de Lemos-Marini SHV
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- Humans, Female, Quality of Life psychology, Brazil, Cross-Sectional Studies, Surveys and Questionnaires, Anthropometry, Turner Syndrome psychology, Physical Appearance, Body
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Objective: This study aimed to analyze if anthropometric factors and physical appearance are associated to QoL in Turner syndrome (TS)., Materials and Methods: Observational, analytical, and cross-sectional study. The SF-36 was applied along with an additional questionnaire regarding specific characteristics of TS., Results: There were no differences in quality of life (QoL) in TS women regarding median height and appropriate height according to parental target height, however, participants satisfied and who did not desire to change their height had better scores in the mental health and role emotional domains than those not satisfied and desired to change it. When comparing participants who were or were not bothered by physical appearance, the results showed that those not bothered by physical appearance had a better score in the vitality and social function domains. Considering patients who did or did not desire to change physical appearance, those who did not want to change their physical appearance had higher scores in the mental component and in the social function and mental health domains of the SF-36., Conclusion: This study indicated that anthropometric factors and physical appearance may possibly be associated to QoL in TS, and also emphasizes the need to develop and validate an official questionnaire regarding specific TS characteristics in order to assess in more detail how specific characteristics of TS interfere with their QoL.
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- 2023
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18. A Single Nucleotide Variant in the Promoter Region of 17β-HSD Type 5 Gene Influences External Genitalia Virilization in Females with 21-Hydroxylase Deficiency.
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Kaupert LC, Gomes LG, Brito VN, Lemos-Marini SH, de Mello MP, Longui CA, Kochi C, de Castro M, Guerra G Jr, Mendonca BB, and Bachega TA
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- 3-Oxo-5-alpha-Steroid 4-Dehydrogenase genetics, Adrenal Hyperplasia, Congenital pathology, Aldo-Keto Reductase Family 1 Member C3, Female, Humans, Membrane Proteins genetics, Retrospective Studies, Virilism pathology, 3-Hydroxysteroid Dehydrogenases genetics, Adrenal Hyperplasia, Congenital genetics, Alleles, Hydroxyprostaglandin Dehydrogenases genetics, Polymorphism, Single Nucleotide, Promoter Regions, Genetic, Virilism genetics
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Background: In 21-hydroxylase deficiency (21-OHD), there is an influence of genotype on the severity of external genitalia virilization. However, females carrying mutations predicting a similar impairment of enzymatic activity present a wide variability of genital phenotypes. In such cases, interindividual variability in genes related to the sex steroid hormone pathway could play a role., Objective: To evaluate the influence of POR, HSD17B5 and SRD5A2 variants on the severity of external genitalia virilization in 21-OHD females., Design and Patients: Prader stages were evaluated in 178 females with 21-OHD from a multicenter study. The 21-OHD genotypes were divided into two groups according to their severity: severe and moderate. The influences of the POR p.A503V, HSD17B5 c.-71A>G, HSD17B5 c.-210A>C, and SRD5A2 p.A49T and p.V89L variants on the degree of external genitalia virilization were analyzed., Results: The POR p.A503V, HSD17B5 c.-71A>G, HSD17B5 c.-210A>C, and SRD5A2 p.A49T and p.V89L variants were found in 25, 33, 17, 1, and 31% of the alleles, respectively. In uni- and multilinear regression, HSD17B5 c.-210A>C has a significant influence on the degree of external genitalia virilization. This variant was also identified with a higher frequency in the most severely virilized females., Conclusion: We demonstrated that a variant in the promoter region of HSD17B5 related to fetal androgen synthesis influences the genital phenotype in 21-OHD females., (© 2016 S. Karger AG, Basel.)
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- 2016
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19. Clinical and molecular data from 61 Brazilian cases of Congenital Hyperinsulinemic Hypoglycemia.
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Del Roio Liberatore R Jr, Ramos PM, Guerra G Jr, Manna TD, Silva IN, and Martinelli CE Jr
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Objective: To study the clinical and molecular characteristics of a sample of Brazilian patients with Congenital Hyperinsulinemic Hypoglycemia (CHH)., Methods: Electronic message was sent to members from Endocrinology Department- Brazilian Society of Pediatrics requesting clinical data for all cases of CHH. A whole blood sample from living patients was requested for DNA extraction followed by a search for mutations of the genes ABCC8, KCNJ11, GCK, GLUD1, HADH, SLC16A1 and HNF4A., Results: Of the 61 patients evaluated, 36 (59%) were boys, and only 16 (26%) were born by normal delivery. Gestational age ranged from 32 to 41 weeks (mean = 37 weeks and 6 days). Birth weight ranged from 1590 to 5250 g (mean = 3430 g). Macrossomia occurred in 14 cases (28%). Age at diagnosis ranged from 1 to 1080 days (mean = 75 days). DNA for molecular analysis was obtained from 53 of the 61 patients. Molecular changes in the ABCC8 gene were detected in 15 (28%) of these 53 cases, and mutations in the KCNJ11 gene were detected in 6 (11%). Mutations in the GLUD1 gene were detected in 9 cases (17%) of the total series. Mutations of the GCK gene in heterozygosis were detected in 3 cases. No mutations were detected in the sequencing of genes HADH, SLC16A1 and HNF4A., Conclusion: The present study conducted in Brazil permitted the collaborative compilation of an important number of CHH cases and showed that the present clinical and molecular data are similar to those of published global series.
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- 2015
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20. Performance of phalangeal quantitative ultrasound parameters in the evaluation of reduced bone mineral density assessed by DX in patients with 21 hydroxylase deficiency.
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Gonçalves EM, Sewaybricker LE, Baptista F, Silva AM, Carvalho WR, Santos AO, de Mello MP, Lemos-Marini SH, and Guerra G Jr
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- Adolescent, Adrenal Hyperplasia, Congenital diagnosis, Adrenal Hyperplasia, Congenital physiopathology, Adult, Child, Female, Humans, Image Interpretation, Computer-Assisted methods, Male, Osteoporosis etiology, Reproducibility of Results, Sensitivity and Specificity, Young Adult, Absorptiometry, Photon methods, Adrenal Hyperplasia, Congenital complications, Bone Density, Elasticity Imaging Techniques methods, Finger Phalanges diagnostic imaging, Osteoporosis diagnosis, Osteoporosis physiopathology
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The purpose of this study was to verify the performance of quantitative ultrasound (QUS) parameters of proximal phalanges in the evaluation of reduced bone mineral density (BMD) in patients with congenital adrenal hyperplasia due to 21-hydroxylase deficiency (21 OHD). Seventy patients with 21 OHD (41 females and 29 males), aged between 6-27 y were assessed. The QUS measurements, amplitude-dependent speed of sound (AD-SoS), bone transmission time (BTT), and ultrasound bone profile index (UBPI) were obtained using the BMD Sonic device (IGEA, Carpi, Italy) on the last four proximal phalanges in the non-dominant hand. BMD was determined by dual energy X-ray (DXA) across the total body and lumbar spine (LS). Total body and LS BMD were positively correlated to UBPI, BTT and AD-SoS (correlation coefficients ranged from 0.59-0.72, p < 0.001). In contrast, when comparing patients with normal and low (Z-score < -2) BMD, no differences were found in the QUS parameters. Furthermore, UBPI, BTT and AD-SoS measurements were not effective for diagnosing patients with reduced BMD by receiver operator characteristic curve parameters. Although the AD-SoS, BTT and UBPI showed significant correlations with the data obtained by DXA, they were not effective for diagnosing reduced bone mass in patients with 21 OHD., (Copyright © 2014 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.)
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- 2014
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21. Two distinct WT1 mutations identified in patients and relatives with isolated nephrotic proteinuria.
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Guaragna MS, Lutaif AC, Piveta CS, Belangero VM, Maciel-Guerra AT, Guerra G Jr, and De Mello MP
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- Amino Acid Sequence, Exons genetics, Female, Humans, Molecular Sequence Data, Mutation, Pedigree, Protein Conformation, WT1 Proteins chemistry, Young Adult, Nephrosis complications, Proteinuria etiology, Proteinuria genetics, WT1 Proteins genetics
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Wilms' tumor type 1 gene (WT1) encodes a zinc-finger transcription factor that plays a key role during genitourinary development and in adult kidney. Mutations in exons 8 and 9 are associated with Denys-Drash Syndrome, whereas those occurring in the intron 9 donor splice site are associated with Frasier Syndrome. Familial cases of WT1 mutations are rare with only few cases described in the literature, whereas cases of WT1 mutations associated with isolated nephrotic proteinuria with or without focal segmental glomerular sclerosis (FSGS) are even rarer. Exons 8 and 9 of WT1 gene were analyzed in two non-related female patients and their parents. Patient 1, who presented with isolated nephrotic proteinuria and histologic pattern of FSGS, is heterozygous for the mutation c.1227+4C>T. This mutation was inherited from her mother, who had undergone kidney transplant due to FSGS. Patient 2 is heterozygous for the novel c.1178C>T transition inherited from her father. The putative effect of this nucleotide substitution on WT1 protein is p.Ser393Phe mutation located within the third zinc-finger domain. The patient and her father presented, respectively, isolated nephrotic proteinuria and chronic renal failure. These data highlight the importance of the inclusion of WT1 gene mutational analysis in patients with isolated nephrotic proteinuria, especially when similar conditions are referred to the family., (Copyright © 2013 Elsevier Inc. All rights reserved.)
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- 2013
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22. Screening of Y chromosome microdeletions in 46,XY partial gonadal dysgenesis and in patients with a 45,X/46,XY karyotype or its variants.
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dos Santos AP, Andrade JG, Piveta CS, de Paulo J, Guerra G Jr, de Mello MP, and Maciel-Guerra AT
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- Adolescent, Chromosomes, Human, Y, Expressed Sequence Tags, Female, Gonadal Dysgenesis genetics, Humans, Infertility, Male, Karyotype, Male, Mosaicism, Testis abnormalities, Young Adult, Chromosome Deletion, Gonadal Dysgenesis, Mixed genetics, Sex Chromosome Aberrations, Sex Chromosome Disorders of Sex Development
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Background: Partial and mixed gonadal dysgenesis (PGD and MGD) are characterized by genital ambiguity and the finding of either a streak gonad and a dysgenetic testis or two dysgenetic testes. The karyotype in PGD is 46,XY, whereas a 45,X/46,XY mosaicism or its variants (more than two lineages and/or structural abnormalities of the Y chromosome) is generally found in MGD. Such mosaics are also compatible with female phenotype and Turner syndrome, ovotesticular disorder of sex development, and infertility in men with normal external genitalia. During the last few years, evidences of a linkage between Y microdeletions and 45,X mosaicism have been reported. There are also indications that the instability caused by such deletions might be more significant in germ cells. The aim of this work was to investigate the presence of Y chromosome microdeletions in individuals with PGD and in those with 45,X/46,XY mosaicism or its variants and variable phenotypes., Methods: Our sample comprised 13 individuals with PGD and 15 with mosaicism, most of them with a MGD phenotype (n = 11). Thirty-six sequence tagged sites (STS) spanning the male specific region (MSY) on the Y chromosome (Yp, centromere and Yq) were analyzed by multiplex PCR and some individual reactions., Results: All STS showed positive amplifications in the PGD group. Conversely, in the group with mosaicism, six individuals with MGD had been identified with Yq microdeletions, two of them without structural abnormalities of the Y chromosome by routine cytogenetic analysis. The deleted STSs were located within AZFb and AZFc (Azoospermia Factor) regions, which harbor several genes responsible for spermatogenesis., Conclusions: Absence of deletions in individuals with PGD does not confirm the hypothesis that instability of the Y chromosome in the gonads could be one of the causes of such condition. However, deletions identified in the second group indicate that mosaicism may be associated with Y chromosome abnormalities detectable only at the molecular level. If patients with mosaicism and Y microdeletions reared as males decide to undergo in vitro fertilization, Y chromosomes which tend to be unstable during cell division may be transmitted to offspring.
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- 2013
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23. Spontaneous final height in Turner's syndrome in Brazil.
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de Lemos-Marini SH, Morcillo AM, Baptista MT, Guerra G Jr, and Maciel-Guerra AT
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- Adolescent, Adult, Brazil epidemiology, Fathers, Female, Growth Disorders epidemiology, Growth Disorders physiopathology, Humans, Karyotyping, Male, Middle Aged, Mothers, Puberty, Risk Factors, Turner Syndrome epidemiology, Turner Syndrome physiopathology, Body Height physiology, Growth Disorders etiology, Turner Syndrome complications
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Short stature is the main factor of emotional impact in girls and women with Turner's syndrome (TS). Growth hormone, alone or associated with sex steroids, allows better adult height. The results of spontaneous final height (FH) in TS can help to evaluate the real cost-benefit of any treatment to improve FH in patients from the same population. The aim of this study was to determine spontaneous FH in women TS and to look for factors which influence it. We evaluated 58 patients with TS who attained FH. Data of weight and length at birth, parents' heights, karyotype, spontaneous puberty and sex hormone replacement were obtained. Mean FH was 144.8 cm and target height 157.0 cm. FH was correlated only to maternal height. The deficit in FH was lower than that found in other Brazilian studies but similar to that described in the literature. This study may help verify the efficacy of therapeutic actions on FH of Brazilian women with TS.
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- 2007
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24. [Multicentric study of Brazilian patients with 21-hydroxylase deficiency: a genotype-phenotype correlation].
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Bachega TA, Billerbeck AE, Parente EB, Lemos-Marini SH, Baptista MT, Mello MP, Guerra G Jr, Kuperman H, Setian N, Damiani D, Torres N, Castro Md, and Mendonça BB
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- Child, Female, Genotype, Humans, Male, Mutation, Phenotype, Adrenal Hyperplasia, Congenital genetics
- Abstract
We analyzed the clinical and molecular data of 205 patients with the three different clinical forms of 21-hydroxylase deficiency, in whom the clinical and molecular diagnosis were already defined. The most frequent mutations were I2 splice in the salt wasting form, I172N in the simple virilizing and V281L in the nonclassical form, presenting similar frequencies as those observed in other populations. We found a lower frequency of 21-hydroxylase gene deletion, similar to that previously identified in Argentinean and Mexican populations. Five new mutations were described in our population: G424S, H28+C, Ins 1003 1004 A, R408C and IVS2-2A>G. The genotype was classified in three groups according to the impairment of enzymatic activity observed in vitro, Group A: 0-2%, Group B: 3-7% and Group C: >20%. Group A mutations correlated with the salt wasting form, the Group B with simple virilizing form and Group C with the non classical form. The severity of genotype showed a positive correlation with higher 17OH-progesterone and testosterone levels. The I2 splice mutation in homo or hemizygosis confers classical form phenotype with both salt wasting and simple virilizing forms, precluding the prediction of the clinical form through genotype in pre and neonatal diagnosis. The good genotype-phenotype correlation in patients with 21-hydroxylase deficiency shows the usefulness of genotype to predict the clinical form for genetic counseling, prenatal diagnosis and to confirm neonatal screening diagnosis, except in cases with I2 splice mutation.
- Published
- 2004
- Full Text
- View/download PDF
25. [Turner syndrome: the patients' view].
- Author
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Suzigan LZ, Paiva e Silva RB, Lemos Marini SH, Baptista MT, Guerra G Jr, Magna LA, and Maciel Guerra AT
- Subjects
- Adolescent, Adult, Body Height, Female, Humans, Infertility, Female psychology, Interpersonal Relations, Self Concept, Turner Syndrome psychology
- Abstract
Objective: To identify how patients with Turner syndrome perceive their condition., Methods: Thirty-six women with Turner syndrome, aged between 15 and 25 years and with over 2 years of medical follow-up, were individually interviewed about: the impact of Turner syndrome at the moment of the diagnosis, their understanding of the syndrome, its effect in their lives, and their expectations for the future., Results: Only 31% of the patients immediately understood the diagnosis. Their feelings associated to that moment were neutral (47%) or concerned (33%). About one third of the interviewed women were unable to explain the etiology of Turner syndrome (42%), did not relate their symptoms with Turner syndrome (36%), and/or believe there might be a cure for it (44%). Although most of the interviewed women affirm that the syndrome has no interference in their lives (67%) and that they consider themselves happy persons (78%), in more than half of the interviews there are evidences of difficulties in social interaction and love relationship, low self-esteem, dissatisfaction with their physical appearances, especially the short stature and infertility. Their hopes for the future refer mainly to study and have a job. Although being, on average, 19 years old, one in two women (53%) still hopes to grow up., Conclusion: Besides medical treatment, it is important that the knowledge of the patients about the syndrome and some issues as infertility, short stature, self-esteem and social interactions receive proper and continuous attention from the moment of the diagnosis. The ideal situation should be a joint-action of a psychologist and the medical team.
- Published
- 2004
26. Labioscrotal island flap in feminizing genitoplasty.
- Author
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Miranda ML, Oliveira-Filho AG, Lemos-Marini SH, Guerra G Jr, and Bustorff-Silva JM
- Subjects
- Adrenogenital Syndrome etiology, Child, Preschool, Clitoris surgery, Female, Follow-Up Studies, Humans, Infant, Treatment Outcome, Vagina abnormalities, Vulva surgery, Adrenal Hyperplasia, Congenital surgery, Adrenogenital Syndrome surgery, Surgical Flaps, Vagina surgery
- Abstract
Background/purpose: Stenosis of the vaginal introitus is the most frequent complication after genital reconstruction for ambiguous genitalia associated with congenital adrenal hyperplasia (CAH). With the aim of enlarging the vaginal introitus, the authors present a technical modification of the introitoplasty that uses a bilateral cutaneous island flap based on the perineal superficial branches of the internal pudendal artery., Methods: Eleven girls with CAH and Prader III to V genital ambiguity were included. Feminizing genitoplasty was performed in 1 stage. Bilateral cutaneous labioescrotal island flaps, based on the posterior labial artery, were included in the introitoplasty. The cosmetic results of the genitoplasty were evaluated by photographic analysis of the external genitalia., Results: Integrity of the vaginal introitus as well as excellent integration of the flap and absence of additional scars in the donor area were assessed in all girls., Conclusions: This modified island flap is technically feasible and reproducible producing no additional sequels in the donor area. It uses perineal skin that is usually excised in other techniques avoiding the use of harvesting skin from adjacent areas. Thus, it can be a useful additional procedure in the introitoplasty in association with the currently used techniques.
- Published
- 2004
- Full Text
- View/download PDF
27. Classical congenital adrenal hyperplasia due to 21-hydroxylase deficiency: a cross-sectional study of factors involved in bone mineral density.
- Author
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de Almeida Freire PO, de Lemos-Marini SH, Maciel-Guerra AT, Morcillo AM, Matias Baptista MT, de Mello MP, and Guerra G Jr
- Subjects
- Adolescent, Adrenal Hyperplasia, Congenital diagnosis, Adrenal Hyperplasia, Congenital etiology, Age Factors, Bone Density, Child, Child, Preschool, Cross-Sectional Studies, Female, Glucocorticoids pharmacology, Humans, Male, Puberty, Sex Factors, Steroid 21-Hydroxylase biosynthesis, Steroid 21-Hydroxylase genetics, Steroid Hydroxylases deficiency, Adrenal Hyperplasia, Congenital pathology
- Abstract
Glucocorticoids are essential in the treatment of patients with congenital adrenal hyperplasia (CAH). The opposite actions of glucocorticoids and androgens in bone mass achievement justify a study of bone mineral density (BMD) in these patients. We evaluated BMD in patients with CAH due to classic 21-hydroxylase (CYP21A2) deficiency and investigated the involvement of clinical and laboratory factors in the BMD. This study assessed the clinical and laboratory factors involved in BMD of 45 patients at the Pediatric Unit of Endocrinology, UNICAMP, who had been diagnosed as having classical CAH due to CYP21A2 deficiency including molecular characterization. The sample consisted of 28 females and 17 males; 23 salt-wasting (SW) and 22 simple virilizing (SV) cases, with average of 9.9 years (ranges, 5.1-16.3 years) when bone densitometry was performed. The DEXA method was used for calculating the areal BMD Z score in L2-L4. The variables were analyzed with reference to the BMD for chronological age (BMD/CA), height age (BMD/HA), and bone age (BMD/BA). The mean Z score for BMD/CA was 0.08 +/- 1.21 (-2.55 to 2.64); it was 0.29 +/- 1.33 (-2.01 to 4.00) for BMD/HA, and -0.90 +/- 1.24 (-3.41 to 1.92) for BMD/BA. The BMD/CA was significantly lower in females and in patients on treatment for a long period and of more advanced chronological age. Weight and body mass index (BMI) Z scores showed a positive correlation with advanced BA. The higher the weight and BMI Z scores, the higher the BMD/HA. The BMD/BA values were significantly higher in the group in which BA was closer to CA. The BMD/BA value was significantly lower when compared to the value obtained with height and chronological ages. Sex, duration of treatment, weight, BMI, and bone age have an effect on areal BMD in patients with CAH due to CYP21A2 deficiency, which may be underestimated when evaluated in relation to CA and HA.
- Published
- 2003
- Full Text
- View/download PDF
28. Bone mineralization in Turner syndrome: a transverse study of the determinant factors in 58 patients.
- Author
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Costa AM, Lemos-Marini SH, Baptista MT, Morcillo AM, Maciel-Guerra AT, and Guerra G Jr
- Subjects
- Adolescent, Adult, Body Height, Body Weight, Child, Child, Preschool, Estrogens therapeutic use, Female, Humans, Karyotyping, Lumbar Vertebrae physiology, Puberty, Turner Syndrome drug therapy, Turner Syndrome genetics, Bone Density, Calcification, Physiologic, Turner Syndrome physiopathology
- Abstract
Turner syndrome (TS) is characterized by the presence of an X chromosome and total or partial loss of the second sex chromosome, short stature, hypergonadotrophic hypogonadism, and a variable dysmorphic picture. Delayed puberty and estrogen deficiency are some of the determinant factors of osteoporosis in TS, but the whether or not there is an intrinsic bone defect is still obscure. The aim of this study was to evaluate the correlation of the z score of bone mineral density (BMD) with age, weight, height, karyotype, associated diseases, bone age, and estrogen therapy in TS patients. We performed a transverse study with area BMD of L2-L4 with dual-energy X-ray absorptiometry (DEXA) in 58 patients with a cytogenetic diagnosis of TS, whose ages ranged from 5 to 29 years. It was observed that 86% of the patients presented with a BMD z score below -1 SD, and 46.5% with a value below -2.5 SD. There was a significant negative association of BMD with age and height, and a positive association with weight and bone mass index (BMI) z scores. A higher BMD was observed in patients with spontaneous puberty and in those with more than 2 years of hormone replacement. In conclusion, there was a high incidence of reduced bone mass among our patients, which was influenced by weight and BMI, by the use and the time of estrogen replacement, and by the presence of spontaneous puberty.
- Published
- 2002
- Full Text
- View/download PDF
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