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1.
Arch. endocrinol. metab. (Online) ; 59(3): 231-235, 06/2015. tab, graf
Article in English | LILACS | ID: lil-751314

ABSTRACT

Objective Haemoglobin A1c (Hb A1c) is routinely used for monitoring glycemic control in patients with diabetes. Hb A1c seasonal fluctuations can be directly related to different biological, geographical and cultural influences. Our purpose was to evaluate seasonal variation of Hb A1c in a hospital-based adult population over a period of 5 years.Materials and methods We analyzed retrospectively monthly Hb A1c mean values (DCCT, %) based on all the assays performed to adult patients at a tertiary care university Portuguese hospital between 2008-2012.Results We obtained 62,384 Hb A1c valid measurements, with a peak level found in January-February (7.1%), a trough in August-October (6.8%) and an average peak-to-trough amplitude value of 0.3%. This trend was observed in both genders and age subgroups evaluated.Conclusions There is a Hb A1c circannual seasonal pattern with peak levels occurring in winter months in this Portuguese population. This finding should be recognized in daily clinical practice to warrant better clinical and epidemiological interpretation of Hb A1c values. Arch Endocrinol Metab. 2015;59(3):231-5.


Subject(s)
Adult , Female , Humans , Middle Aged , Immunoconjugates/therapeutic use , Immunosuppressive Agents/therapeutic use , Polyendocrinopathies, Autoimmune/drug therapy , Diarrhea/drug therapy , Diarrhea/etiology , Enterocytes/pathology , Lymphocyte Activation/drug effects , Polyendocrinopathies, Autoimmune/physiopathology , Treatment Outcome
2.
Arq. bras. endocrinol. metab ; 36(3): 96-101, set. 1992. ilus
Article in Portuguese | LILACS | ID: lil-162728

ABSTRACT

Os autores relatam o caso de uma paciente de 29 anos, parda, portadora de "stiff-man syndrome" (SMS) associada a poliendocrinopatia do tipo II (moléstia de Basedow-Graves, diabetes mellitus tipo I e tiroidite de Hashimoto). A primeira endocrinopatia foi a doença de Graves que surgiu aos 12 anos e entrou em remissao após um período de tratamento clínico. As manifestaçoes de SMS surgiram há 5 anos, com enrijecimento e espasmos dolorosos dos músculos axiais, e hipertrofia de deltóide e trapézio, tendo desenvolvido diabetes mellitus insulino-dependente (DMI) 2 anos após SMS. Há 1 ano apresentou também hipotiroidismo subclínico (tiroidite de Hashimoto). Foram detectados anticorpos anti-decarboxilase do ácido glutâmico (anti-GAD) no líquor e no soro da paciente, o que confirma o diagnóstico de SMS. Estes autoanticorpos estao voltados contra uma proteína de massa molecular 64 Kd (GAD) e têm sido detectados em 80 por cento dos pacientes com DMI. Pacientes com SMS apresentam alta prevalência desses autoanticorpos e uma grande associaçao com DMI. Na paciente descrita foi possível detectar autoanticorpos contra vários tecidos alvo (tiróide, pâncreas e neurônios GABA-érgicos). Neste relato discute-se os critérios diagnósticos, a fisiopatologia da SMS e os mecanismos imunológicos que levam ao DMI nesta síndrome.


Subject(s)
Humans , Female , Adult , Polyendocrinopathies, Autoimmune/diagnosis , Stiff-Person Syndrome/diagnosis , Benzodiazepines/therapeutic use , Diabetes Mellitus, Type 1/complications , Polyendocrinopathies, Autoimmune/complications , Polyendocrinopathies, Autoimmune/drug therapy , Polyendocrinopathies, Autoimmune/physiopathology , Stiff-Person Syndrome/complications , Stiff-Person Syndrome/physiopathology , Stiff-Person Syndrome/drug therapy , Thyroxine/therapeutic use
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