
M Cardia, Ileana Gabriela Sanchez Rubio, Geraldo Medeiros‐Neto,
... SP, BrazilSearch for more papers by this authorGeraldo Medeiros-Neto*, Geraldo Medeiros-Neto* University São Paulo Medical School, Thyroid Unit, Division ... SP, BrazilSearch for more papers by this authorGeraldo Medeiros-Neto*, Geraldo Medeiros-Neto* University São Paulo Medical School, Thyroid Unit, Division ... 1365-2265.2005.02419.xCitations: 1 *Dr Geraldo Medeiros-Neto, Thyroid Unit, Division of Endocrinology, University of São ... C., Tomimori, E., Camargo, R., Cárdia, M.S. & Medeiros-Neto, G. (2003) Administration of a single dose of ...
Tópico(s): Thyroid Disorders and Treatments
2006 - Wiley | Clinical Endocrinology

Bryan R. Haugen, David S. Cooper, Charles H. Emerson, Markus Luster, Rui M. B. Maciel, Rosa Paula M. Biscolla, Ernest L. Mazzaferri, Geraldo Medeiros‐Neto, Christoph Reiners, Richard J. Robbins, Bruce G. Robinson, Martin Schlumberger, Shunichi Yamashita, Furio Pacini,
... Rosa P.M. Biscolla, Ernest L. Mazzaferri, Geraldo Medeiros-Neto, Christoph Reiners, Richard J. Robbins, Bruce G. Robinson, ... Rosa P.M. Biscolla, Ernest L. Mazzaferri, Geraldo Medeiros-Neto, Christoph Reiners, Richard J. Robbins, Bruce G. Robinson, ...
Tópico(s): Head and Neck Anomalies
2008 - Mary Ann Liebert, Inc. | Thyroid
... 1Issue 1Jan 1990 To cite this article:GERALDO MEDEIROS-NETO.Iodine Deficiency Disorders.Thyroid.Jan 1990.73-82. ...
Tópico(s): Fluoride Effects and Removal
1990 - Mary Ann Liebert, Inc. | Thyroid

Eduardo Gaitán, Robert C. Cooksey, Jim S. Legan, Robert S. Lindsay, Sidney H. Ingbar, Geraldo Medeiros‐Neto,
... Cooksey RC, Legan J, Lindsay RH, Ingbar SH, Medeiros-Neto G. Antithyroid effects in vivo and in vitro ...
Tópico(s): Dye analysis and toxicity
1994 - Oxford University Press | European Journal of Endocrinology

Ana Cláudia Rossi, Eduardo Tomimori, Roberto da Silva Camargo, Geraldo Medeiros‐Neto,
... C. Rossi, Eduardo Tomimori, Rosalinda Camargo, and Geraldo Medeiros-Neto.Searching for Iodine Deficiency Disorders in Schoolchildren from ...
Tópico(s): Thyroid Disorders and Treatments
2001 - Mary Ann Liebert, Inc. | Thyroid

Geraldo Medeiros‐Neto, J Kieffer, William Nicolau, A. Cintra,
... Iodinated Compounds in Cryptothyroidism Get access GERALDO A. MEDEIROS-NETO, GERALDO A. MEDEIROS-NETO 1First Medical Clinics, Hospital das Clínicas, University of ...
Tópico(s): Toxoplasma gondii Research Studies
1967 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism

Virgílio Gonçalves Pereira, E. S. Haron, N. Lima-Neto, Geraldo Medeiros‐Neto,
Tópico(s): Ion Transport and Channel Regulation
1982 - Springer Science+Business Media | Journal of Endocrinological Investigation

P. V. dos Santos, M. T. de Araújo, A.S. Gouveia-Neto, J. A. Medeiros Neto, A. S. B. Sombra,
Optical temperature sensing using upconversion fluorescence emission in Er3+/Yb3+-codoped Ga2S3:La2O3 chalcogenide glass excited at 1.06 μm is reported. Temperature measurements in the region of 20–225 °C with a resolution of approximately 0.5 °C using excitation powers of a few tens of milliwatts were obtained. The temperature sensing mechanism is independent of variations in the excitation intensity, possible fluctuations of transmission, and utilizes a simple signal detection and processing system. ...
Tópico(s): Phase-change materials and chalcogenides
1998 - American Institute of Physics | Applied Physics Letters

A.S. Oliveira, M. T. de Araújo, A.S. Gouveia-Neto, J. A. Medeiros Neto, A. S. B. Sombra, Younès Messaddeq,
Frequency upconversion of cw infrared radiation at 1.06 μm into the visible in Er3+/Yb3+-codoped Ga2S3:La2O3 chalcogenide glass samples is presented. Intense green and red emission bands around 530, 555, and 670 nm, respectively, are observed in addition to near-infrared 830 and 925 nm less intense signals. Energy transfer processes and nonradiative phonon-assisted decays account for the population of the H211/2, S43/2, and F49/2 emitting levels. The dependence of the red emission with the Yb3+ ...
Tópico(s): Phase-change materials and chalcogenides
1998 - American Institute of Physics | Applied Physics Letters

H.T Amorim, M. T. de Araújo, E. A. Gouveia, A.S. Gouveia-Neto, J. A. Medeiros Neto, A. S. B. Sombra,
Infrared to visible frequency up-conversion fluorescence spectroscopy in erbium-doped chalcogenide glass samples excited at 1.06 and 1.54 μm, is experimentally investigated. For 1.06 μm pumping, two-photon absorption and phonon-assisted energy transfer account for the excitation of the 2H11/2, 4S3/2 and 4F9/2 emitting levels, yielding intense green emission at 530 and 555 nm and low intensity light at 670 nm, respectively. For excitation at 1.54 μm, much higher up-conversion efficiencies were obtained ...
Tópico(s): Luminescence Properties of Advanced Materials
1998 - Elsevier BV | Journal of Luminescence

P. V. dos Santos, M. T. de Araújo, A.S. Gouveia-Neto, J. A. Medeiros Neto, A. S. B. Sombra,
Optical thermometry based upon infrared excited upconversion fluorescence emission in Er/sup 3+/- and Er/sup 3+/-Yb/sup 3+/- doped Ga/sub 2/S/sub 3/-La/sub 2/O/sub 3/ chalcogenide glasses excited at 1.54 and 1.06 /spl mu/m, respectively, is presented. Temperature sensing in the region of 20/spl deg/C-220/spl deg/C with 0.3/spl deg/C accuracy using excitation powers readily obtainable from commercially available semiconductor lasers was achieved. The temperature sensing approach is independent of ...
Tópico(s): Luminescence Properties of Advanced Materials
1999 - IEEE Photonics Society | IEEE Journal of Quantum Electronics
Victoria Reyes‐García, Vincent Vadez, Elizabeth Byron, Lilian Apaza, William R. Leonard, Eddy Pérez-Then, David Wilkie,
... Marcelo Alves Ramos, Taline Cristina da Silva, Eraldo Medeiros Costa-Neto, Patrícia Muniz de Medeiros The role of kinship ... Washington Soares Ferreira Júnior, Fernanda Novais Barros, Eraldo Medeiros Costa Neto, Patrícia Muniz de Medeiros The use of different indicators for interpreting the ...
Tópico(s): Economic and Environmental Valuation
2005 - University of Chicago Press | Current Anthropology

A.S. Oliveira, M. T. de Araújo, A.S. Gouveia-Neto, A. S. B. Sombra, J. A. Medeiros Neto, Norberto Aranha,
Upconversion fluorescence emission of Er3+/Yb3+-doped Bi2O3–Na2O–Nb2O5–GeO2 heavy metal glass samples excited at 1.06 μm is experimentally investigated. The results reveal the existence of intense emission bands centered around 520, 545, and 655 nm. The germano-niobate based host glass presents high transparency in the region of 400–2700 nm, the capability of incorporating high dopant concentrations, high melting temperature, and large resistance to atmospheric moisture. The observed intensity of ...
Tópico(s): Nuclear materials and radiation effects
1998 - American Institute of Physics | Journal of Applied Physics

P. V. dos Santos, E. A. Gouveia, M. T. de Araújo, A.S. Gouveia-Neto, A. S. B. Sombra, J. A. Medeiros Neto,
Thermally induced threefold infrared-to-visible upconversion emission enhancement in Er3+/Yb3+-codoped Ga2S3:La2O3 chalcogenide glasses excited at 1.064 μm is reported. The times three upconversion efficiency enhancement was achieved by heating the sample in the temperature range of 23–155 °C, and is assigned to the temperature-dependent multiphonon-assisted anti-Stokes sideband excitation process of the ytterbium sensitizer. A theoretical analysis based upon rate equations considering the sensitizer ...
Tópico(s): Solid State Laser Technologies
1999 - American Institute of Physics | Applied Physics Letters

Sebastião Rogério da Silva Neto, Thomás Tabosa de Oliveira, Igor Vitor Teixiera, Leonides Medeiros Neto, Vanderson de Souza Sampaio, Theo Lynn, Patrícia Takako Endo,
Abstract One of the main categories of Neglected Tropical Diseases (NTDs) are arboviruses, of which Dengue and Chikungunya are the most common. Arboviruses mainly affect tropical countries. Brazil has the largest absolute number of cases in Latin America. This work presents a unified data set with clinical, sociodemographic, and laboratorial data on confirmed patients of Dengue and Chikungunya, as well as patients ruled out of infection from these diseases. The data is based on case notification ...
Tópico(s): Zoonotic diseases and public health
2022 - Nature Portfolio | Scientific Data

Célia Regina Nogueira, Lynda Q. Nguyen, JOSÉ R. COELHO-NETO, Onur K. Arseven, J. Larry Jameson, Peter Kopp, Geraldo Medeiros‐Neto,
Sporadic congenital hypothyroidism is most commonly caused by developmental abnormalities of the thyroid gland. More rarely, it is due to defects in gene products involved in the regulation of the hypothalamic-pituitarythyroid axis or thyroid hormone synthesis. Loss of function mutations in the thyrotropin (TSH) receptor have been shown to result in resistance to biologically active TSH. In complete resistance to TSH, the thyroid gland is hypoplastic and unable to synthesize and secrete sufficient ...
Tópico(s): Hypothalamic control of reproductive hormones
1999 - Mary Ann Liebert, Inc. | Thyroid

Ileana Gabriela Sanchez Rubio, Ana Luiza Galrão, Marco Aurélio Santo, Antônio Carlos Zanini, Geraldo Medeiros‐Neto,
Tópico(s): Nitric Oxide and Endothelin Effects
2011 - Springer Science+Business Media | Obesity Surgery

Gilbert A. Sigal, Geraldo Medeiros‐Neto, Juliana C. Vinagre, J Diament, Raul C. Maranhão,
Background: Subclinical hypothyroidism (SCH) has been associated with atherosclerosis, but the abnormalities in plasma lipids that can contribute to atherogenesis are not prominent. The aim of this study was to test the hypothesis that patients with normocholesterolemic, normotriglyceridemic SCH display abnormalities in plasma lipid metabolism not detected in routine laboratory tests including abnormalities in the intravascular metabolism of triglyceride-rich lipoproteins, lipid transfers to high- ...
Tópico(s): Growth Hormone and Insulin-like Growth Factors
2011 - Mary Ann Liebert, Inc. | Thyroid

Vincenza Leone, Daniela D’Angelo, Ileana Gabriela Sanchez Rubio, Paula Mussnich de Freitas, Antonio Federico, Marianna Colamaio, Pierlorenzo Pallante, Geraldo Medeiros‐Neto, Alfredo Fusco,
Micro-RNA have emerged as an important class of short endogenous RNA that act as posttranscriptional regulators of gene expression and are constantly deregulated in human cancer. MiR-1 has been found down-regulated in lung, colon, and prostate cancer.In this study, we investigated the possible role of miR-1 in thyroid carcinogenesis.We have analyzed miR-1 expression in a panel of thyroid neoplasias including benign and malignant lesions and searched for miR-1 targets.Our results show that miR-1 ...
Tópico(s): Circular RNAs in diseases
2011 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism

R. Y. A. Camargo, Eduarto K. Tomimori, Solange Caires Neves, Meyer Knobel, Geraldo Medeiros‐Neto,
To evaluate the prevalence of chronic autoimmune thyroiditis in 2 urban areas of metropolitan São Paulo (Brazil): Polo Area neighboring a large petrochemical complex and São Bernardo Campo Area (control area).Subjects were randomly included from the adult population (20 to 70 years of age) of both genders (women 80%, men 20%) who voluntarily agreed to participate. From the Polo Area, in the vicinity of a large petrochemical industrial complex, 409 subjects were included; from the control area (São Bernardo ...
Tópico(s): Salivary Gland Disorders and Functions
2006 - Elsevier BV | Clinics
Manfred J. Müller, Sandra Danielzik,
... have evidence that obesity prevention works? In: G Medeiros-Neto, AB Halpern, C Bouchard (eds). Progress in Obesity ...
Tópico(s): Obesity and Health Practices
2006 - Wiley | Obesity Reviews

Geraldo Medeiros‐Neto, R. Y. A. Camargo, Eduardo Tomimori,
The main causes of simple diffuse goiter (SDG) and multinodular goiter (MNG) are iodine deficiency, increase in serum thyroid-stimulating hormone (TSH) level, natural goitrogens, smoking, chronic malnutrition, and lack of selenium, iron, and zinc. Increasing evidence suggests that heredity is equally important. Treatment of SDG and MNG still focuses on L -thyroxine-suppressive therapy surgery. Radioiodine alone or preceded by recombinant human TSH stimulation is widely used in Europe and other countries. ...
Tópico(s): Thyroid and Parathyroid Surgery
2012 - Elsevier BV | Medical Clinics of North America

Ana Luiza Galrão, Ana Karina M. B. Sodré, R. Y. A. Camargo, Celso U. M. Friguglietti, Marco Aurélio Vamondes Kulcsar, Erika Urbano de Lima, Geraldo Medeiros‐Neto, Ileana Gabriela Sanchez Rubio,
Tópico(s): Cancer-related gene regulation
2012 - Springer Science+Business Media | Endocrine

Geraldo Medeiros‐Neto, W Bloise, A. B. ULHOACINTRA,
Two siblings, a 23-yr-old woman and a 34-yr-old man, with congenital goiter and hypothyroidism were referred to the thyroid clinic for evaluation. They were on thyroid extract since early childhood and attained normal growth but were mentally retarded. Inbreedings were noted in the family pedigree but no cases of goiter were reported. The BMR was low for both patients and PBI was 1.0 μg and 2.2 μg/100 ml, respectively. T4-I was 1.0 μg and 1.8 μg/100 ml. The perchlorate test was negative. The TRC ...
Tópico(s): Ion channel regulation and function
1972 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism

S. P. A. Toledo, Geraldo Medeiros‐Neto, Meyer Knobel, E Mattar,
Tópico(s): Genetic and Kidney Cyst Diseases
1977 - Elsevier BV | Metabolism

Geraldo Medeiros‐Neto, W Kallas, Meyer Knobel, H. Cavaliere, E Mattar,
The effects of a daily oral dose (1.4 mg) of 3,5,3'- Triiodothyroacetic acid (Triac) on thyroid hormone levels (T4, T3, and rT3) and on the TSH and PRL responses to TRH were studied in 15 normal subjects and 5 hypothyroid patients. There were no significant changes in weight, heart rate, reflex time, or serum concentration of either cholesterol or triglycerides after 6 weeks of Triac administration. However, T4 was significantly reduced to a lower mean level (mean ± SEM, 7.3 ± 0.7 to 4.3 ± 0.6 jug/dl) in ...
Tópico(s): Pituitary Gland Disorders and Treatments
1980 - Oxford University Press | The Journal of Clinical Endocrinology & Metabolism

Geraldo Medeiros‐Neto, Meyer Knobel, Marcello D. Bronstein, José Pascoal Simonetti, Fadlo Fraige Filho, E Mattar,
ABSTRACT A 19 year old man had congenital hypothyroidism and severely retarded development. His thyroid gland was not enlarged and laboratory findings included low serum concentration of T 4 (2.8 μg/100 ml) and T 3 (16 ng/100 ml) with a high level of TSH (52 μU/ml) that rose to 192 μU/ml after TRH. 131 I uptake by the thyroid was normal (41.5 % at 24 h) and did not show a normal increase after exogenous TSH administration (49.5 % at 24 h). The perchlorate discharge test was negative and no antibodies against ...
Tópico(s): Neuroscience of respiration and sleep
1979 - Oxford University Press | European Journal of Endocrinology

E. G. Lever, Geraldo Medeiros‐Neto, Leslie J. DeGroot,
THE FIRST classic descriptions of inherited goiter were made simultaneously by Osier (1) and Pendred (2) over 80 years ago. Eleven years after their reports, Garrod (3) developed the concept of inborn errors of metabolism. Our understanding of inborn errors of thyroid metabolism awaited the development of sophisticated biochemical investigative tests pioneered by Stanbury just over 30 years ago (4). Since then there has been an enormous growth of our knowledge of these disorders, which has, pari passu, ...
Tópico(s): Cancer, Hypoxia, and Metabolism
1983 - Oxford University Press | Endocrine Reviews

Frederico Aun, Geraldo Medeiros‐Neto, Riad N. Younes, D Birolini, MARIO RAMOS DE OLIVEIRA,
In order to evaluate the effects of severe trauma on the levels of thyroxine (T4), 3,3',5-triiodothyronine (T3), and 3,3',5'-triiodothyronine (reverse-T3, r-T3), blood samples were collected from traumatized patients on the first post-trauma day. The plasma concentrations of T3 were significantly decreased (mean, 47.4 ng/dl); T4 levels were in the normal range (mean, 6.6 mcg/dl) and r-T3 levels were significantly elevated (mean, 80.8 ng/dl). The oxygen extraction by the muscular tissue was also determined ...
Tópico(s): Thyroid Disorders and Treatments
1983 - Lippincott Williams & Wilkins | Journal of Trauma and Acute Care Surgery

N. Lima, Geraldo Medeiros‐Neto,
SUMMARY Twenty‐three endemic goitrous subjects (goitre grade: III and IV) that were living in a chronic iodine‐deficient area (iodine intake: less than 40 μg I/d) were submitted to clinical and laboratory evaluation within 3–8 weeks of arrival at the metropolitan area of São Paulo, where daily iodine intake is estimated to be 150–200 μg I/d. Eight patients developed a mild thyrotoxic state (T4 = 14.7 ± 2.3 μg/dl, T3 = 279 ± 55 ng/dl, no TSH response to TRH). Five additional subjects, although euthyroid, had ...
Tópico(s): Thyroid Cancer Diagnosis and Treatment
1984 - Wiley | Clinical Endocrinology