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1.
Transl Psychiatry ; 7(8): e1193, 2017 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-28786978

RESUMO

Clinical evidence suggests that symptoms in premenstrual dysphoric disorder (PMDD) reflect abnormal responsivity to ovarian steroids. This differential steroid sensitivity could be underpinned by abnormal processing of the steroid signal. We used a pharmacometabolomics approach in women with prospectively confirmed PMDD (n=15) and controls without menstrual cycle-related affective symptoms (n=15). All were medication-free with normal menstrual cycle lengths. Notably, women with PMDD were required to show hormone sensitivity in an ovarian suppression protocol. Ovarian suppression was induced for 6 months with gonadotropin-releasing hormone (GnRH)-agonist (Lupron); after 3 months all were randomized to 4 weeks of estradiol (E2) or progesterone (P4). After a 2-week washout, a crossover was performed. Liquid chromatography/tandem mass spectrometry measured 49 steroid metabolites in serum. Values were excluded if >40% were below the limit of detectability (n=21). Analyses were performed with Wilcoxon rank-sum tests using false-discovery rate (q<0.2) for multiple comparisons. PMDD and controls had similar basal levels of metabolites during Lupron and P4-derived neurosteroids during Lupron or E2/P4 conditions. Both groups had significant increases in several steroid metabolites compared with the Lupron alone condition after treatment with E2 (that is, estrone-SO4 (q=0.039 and q=0.002, respectively) and estradiol-3-SO4 (q=0.166 and q=0.001, respectively)) and after treatment with P4 (that is, allopregnanolone (q=0.001 for both PMDD and controls), pregnanediol (q=0.077 and q=0.030, respectively) and cortexone (q=0.118 and q=0.157, respectively). Only sulfated steroid metabolites showed significant diagnosis-related differences. During Lupron plus E2 treatment, women with PMDD had a significantly attenuated increase in E2-3-sulfate (q=0.035) compared with control women, and during Lupron plus P4 treatment a decrease in DHEA-sulfate (q=0.07) compared with an increase in controls. Significant effects of E2 addback compared with Lupron were observed in women with PMDD who had significant decreases in DHEA-sulfate (q=0.065) and pregnenolone sulfate (q=0.076), whereas controls had nonsignificant increases (however, these differences did not meet statistical significance for a between diagnosis effect). Alterations of sulfotransferase activity could contribute to the differential steroid sensitivity in PMDD. Importantly, no differences in the formation of P4-derived neurosteroids were observed in this otherwise highly selected sample of women studied under controlled hormone exposures.


Assuntos
Estradiol/farmacologia , Leuprolida/farmacologia , Metaboloma/efeitos dos fármacos , Transtorno Disfórico Pré-Menstrual/metabolismo , Progesterona/farmacologia , Adulto , Estudos Cross-Over , Desoxicorticosterona/sangue , Estradiol/análogos & derivados , Estradiol/sangue , Estrona/sangue , Feminino , Humanos , Pessoa de Meia-Idade , Pregnanodiol/sangue , Pregnanolona/sangue , Adulto Jovem
2.
Mol Psychiatry ; 22(8): 1172-1184, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28044059

RESUMO

Clinical evidence suggests that mood and behavioral symptoms in premenstrual dysphoric disorder (PMDD), a common, recently recognized, psychiatric condition among women, reflect abnormal responsivity to ovarian steroids. This differential sensitivity could be due to an unrecognized aspect of hormonal signaling or a difference in cellular response. In this study, lymphoblastoid cell line cultures (LCLs) from women with PMDD and asymptomatic controls were compared via whole-transcriptome sequencing (RNA-seq) during untreated (ovarian steroid-free) conditions and following hormone treatment. The women with PMDD manifested ovarian steroid-triggered behavioral sensitivity during a hormone suppression and addback clinical trial, and controls did not, leading us to hypothesize that women with PMDD might differ in their cellular response to ovarian steroids. In untreated LCLs, our results overall suggest a divergence between mRNA (for example, gene transcription) and protein (for example, RNA translation in proteins) for the same genes. Pathway analysis of the LCL transcriptome revealed, among others, over-expression of ESC/E(Z) complex genes (an ovarian steroid-regulated gene silencing complex) in untreated LCLs from women with PMDD, with more than half of these genes over-expressed as compared with the controls, and with significant effects for MTF2, PHF19 and SIRT1 (P<0.05). RNA and protein expression of the 13 ESC/E(Z) complex genes were individually quantitated. This pattern of increased ESC/E(Z) mRNA expression was confirmed in a larger cohort by qRT-PCR. In contrast, protein expression of ESC/E(Z) genes was decreased in untreated PMDD LCLs with MTF2, PHF19 and SIRT1 all significantly decreased (P<0.05). Finally, mRNA expression of several ESC/E(Z) complex genes were increased by progesterone in controls only, and decreased by estradiol in PMDD LCLs. These findings demonstrate that LCLs from women with PMDD manifest a cellular difference in ESC/E(Z) complex function both in the untreated condition and in response to ovarian hormones. Dysregulation of ESC/E(Z) complex function could contribute to PMDD.


Assuntos
Transtorno Disfórico Pré-Menstrual/genética , Transtorno Disfórico Pré-Menstrual/metabolismo , Proteínas Repressoras/metabolismo , Adulto , Afeto/fisiologia , Linhagem Celular , Estradiol , Feminino , Regulação da Expressão Gênica/genética , Inativação Gênica/fisiologia , Humanos , Ovário/metabolismo , Progesterona , Proteínas Repressoras/genética , Esteroides/metabolismo , Transcriptoma/genética , Regulação para Cima
3.
Pituitary ; 18(2): 188-94, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25724314

RESUMO

INTRODUCTION: Cushing's disease is a rare disorder characterized by overproduction of ACTH from a pituitary adenoma leading to hypercortisolemia that in turn leads to increased morbidity and mortality. METHODS: Here we review the comorbidities associated with Cushing's disease and their impact on quality of life and mortality. RESULTS: Recent evidence suggests that correction of hypercortisolemia may not lead to complete resolution of comorbidities associated with this condition. In particular, increased cardiovascular risk may persist despite long-term remission of hypercortisolemia. This may be related to persistence of visceral adiposity, adverse adipokine profile, glucose intolerance, hypertension, dyslipidemia, atherosclerosis and a procoagulant phenotype. Prior prolonged exposure to glucocorticoids also may have irreversible effects on the central nervous system, leading to persistent cognitive and mood alterations. Osteoporosis and fractures, especially vertebral fractures, can further add to morbidity and a poor quality of life. Normalization of cortisol levels leads to significant improvement in comorbidities but long-term data regarding complete resolution are lacking and need further study. CONCLUSION: Early diagnosis and treatment of hypercortisolemia, aggressive management of comorbidities along with long-term follow-up is crucial for the optimal recovery of these patients.


Assuntos
Adenoma Hipofisário Secretor de ACT/epidemiologia , Adenoma/epidemiologia , Hipersecreção Hipofisária de ACTH/epidemiologia , Adenoma Hipofisário Secretor de ACT/diagnóstico , Adenoma Hipofisário Secretor de ACT/mortalidade , Adenoma Hipofisário Secretor de ACT/psicologia , Adenoma Hipofisário Secretor de ACT/terapia , Adenoma/diagnóstico , Adenoma/mortalidade , Adenoma/psicologia , Adenoma/terapia , Causas de Morte , Comorbidade , Humanos , Hipersecreção Hipofisária de ACTH/diagnóstico , Hipersecreção Hipofisária de ACTH/mortalidade , Hipersecreção Hipofisária de ACTH/psicologia , Hipersecreção Hipofisária de ACTH/terapia , Prognóstico , Qualidade de Vida , Medição de Risco , Fatores de Risco , Fatores de Tempo
4.
J Endocrinol Invest ; 36(11): 1112-6, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23887034

RESUMO

Inferior petrosal sinus sampling (IPSS) is considered the gold standard test to distinguish between Cushing's disease (CD) and ectopic ACTH syndrome (EAS). Anomalous venous drainage, abnormal venous anatomy, and lack of expertise can lead to false-negative IPSS results and thereby misclassification of patients with ACTH-dependent Cushing's syndrome. Prolactin measurement during IPSS can improve diagnostic accuracy and decrease false negative results. A baseline prolactin inferior petrosal sinus to peripheral (IPS/P) ratio (ipsilateral to the dominant post-CRH ACTH IPS/P ratio) of 1.8 or more suggests successful catheterization during IPSS. Prolactin-normalized ACTH IPS/P ratios can then be used to differentiate between a pituitary and ectopic source of ACTH. Values ≤ 0.7 are suggestive of EAS and those ≥ 1.3 are indicative of CD, but the implication of values between 0.7 and 1.3 remains unclear and needs further investigation. Larger prospective studies are also needed for further evaluation of the role of contralateral prolactin IPS/P ratios, post- CRH prolactin values, and prolactin-adjusted ACTH inter-sinus ratios for tumor localization in CD.


Assuntos
Hormônio Adrenocorticotrópico , Síndrome de Cushing/diagnóstico , Amostragem do Seio Petroso/métodos , Hipersecreção Hipofisária de ACTH/diagnóstico , Prolactina/sangue , Síndrome de ACTH Ectópico/diagnóstico , Hormônio Liberador da Corticotropina , Humanos , Hipófise/metabolismo
5.
Eur J Endocrinol ; 166(3): 531-6, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22190002

RESUMO

Spontaneous remission is rare in ectopic ACTH syndrome (EAS). We describe four patients with presumed EAS in whom long-term treatment with steroidogenesis inhibitors was followed by prolonged remission of hypercortisolemia. Biochemical testing was consistent with EAS, but imaging failed to identify a tumor. Patients were treated with ketoconazole alone or with mitotane and/or metyrapone to control hypercortisolemia. Dexamethasone was added when a block and replace strategy was used. Treatment with steroidogenesis inhibitors for 3-10 years in these patients was followed by a prolonged period of remission (15-60 months). During remission, the first patient had an elevated ACTH, low cortisol and 24-h urinary free cortisol (UFC), and adrenal atrophy on computerized tomography scan during remission, suggesting a direct toxic effect on the adrenal glands. Cases 2 and 3 had normal to low ACTH levels and low-normal UFC, consistent with an effect at the level of the ectopic tumor. They did not have a history of cyclicity and case 3 has been in remission for ~5 years, making cyclic Cushing's syndrome less likely. Case 4, with a history of cyclic hypercortisolism, had normal to slightly elevated ACTH levels and low-normal UFC during remission. The most likely etiology of remission is cyclic production of ACTH by the ectopic tumor. Spontaneous and sustained remission of hypercortisolemia is possible in EAS after long-term treatment with steroidogenesis inhibitors; a drug holiday may be warranted during chronic therapy to evaluate this. The pathophysiology remains unclear but may involve several different mechanisms.


Assuntos
Síndrome de ACTH Ectópico/tratamento farmacológico , Síndrome de Cushing/tratamento farmacológico , Antagonistas de Hormônios/uso terapêutico , Esteroides/antagonistas & inibidores , Síndrome de ACTH Ectópico/sangue , Adulto , Síndrome de Cushing/sangue , Feminino , Antagonistas de Hormônios/farmacologia , Humanos , Masculino , Pessoa de Meia-Idade , Indução de Remissão , Esteroides/biossíntese , Fatores de Tempo , Resultado do Tratamento
6.
J Clin Endocrinol Metab ; 97(2): 455-62, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22090282

RESUMO

CONTEXT: Two patients presented with Cushing's syndrome due to ectopic ACTH secretion. Initial localization studies included computed tomography, magnetic resonance imaging, and octreoscans ((111)In-pentreotide scintigraphy), which were negative in both patients. They were treated with the glucocorticoid receptor antagonist mifepristone, with improvement in their clinical symptoms. Follow-up octreoscans after, respectively, 6 and 12 months showed the unequivocal presence of a bronchial carcinoid in both patients. OBJECTIVE: The objective of the study was to correlate in vivo and in vitro findings in patients with ectopic ACTH-producing syndrome. METHODS: We determined the expression of somatostatin and dopamine receptors by immunohistochemistry (patients 1 and 2), quantitative PCR, and in vitro culturing of tumor cells (patient 1 only). IN VITRO RESULTS: Both tumors were strongly positive for somatostatin receptor type 2 (sst(2)) on immunohistochemistry, whereas one of the tumors (patient 1) was also dopamine receptor subtype 2 (D(2)) positive on both immunohistochemistry and quantitative PCR. Octreotide (a sst(2) preferring analog) and cabergoline (D(2) agonist) both decreased the ACTH levels in the cultured tumor cells of patient 1. CONCLUSION: We describe two patients with ACTH-producing bronchial carcinoids, in whom a direct down-regulatory effect of glucocorticoid levels on tumoral sst(2) receptor expression is suggested by a remarkable change in octreoscan status after successful mifepristone therapy. Further studies will have to demonstrate whether glucocorticoid lowering or antagonizing therapy may be used to improve the diagnostic accuracy of somatostatin receptor scintigraphy in patients with ectopic ACTH production of unknown primary origin.


Assuntos
Síndrome de ACTH Ectópico/genética , Tumor Carcinoide/genética , Síndrome de Cushing/genética , Neoplasias Pulmonares/genética , Mifepristona/farmacologia , Receptores de Somatostatina/genética , Síndrome de ACTH Ectópico/tratamento farmacológico , Síndrome de ACTH Ectópico/etiologia , Hormônio Adrenocorticotrópico/metabolismo , Adulto , Tumor Carcinoide/tratamento farmacológico , Tumor Carcinoide/metabolismo , Síndrome de Cushing/complicações , Síndrome de Cushing/tratamento farmacológico , Síndrome de Cushing/metabolismo , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Antagonistas de Hormônios/farmacologia , Antagonistas de Hormônios/uso terapêutico , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/metabolismo , Masculino , Pessoa de Meia-Idade , Mifepristona/uso terapêutico , Receptores de Somatostatina/metabolismo
7.
J Clin Endocrinol Metab ; 96(12): 3687-94, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22031511

RESUMO

CONTEXT: Anomalous venous drainage can lead to false-negative inferior petrosal sinus sampling (IPSS) results. Baseline inferior petrosal sinus to peripheral (IPS/P) prolactin ratio higher than 1.8 ipsilateral to the highest ACTH ratio has been proposed to verify successful catheterization. Prolactin-normalized ACTH IPS/P ratios may differentiate Cushing's disease (CD) from ectopic ACTH syndrome (EAS). OBJECTIVE: Our objective was to examine the utility of prolactin measurement during IPSS. DESIGN, SETTING, AND PARTICIPANTS: We conducted a retrospective analysis of prolactin levels in basal and CRH-stimulated IPSS samples in ACTH-dependent Cushing's syndrome (2007-2010). RESULTS: Twenty-five of 29 patients had a pathologically proven diagnosis (17 CD and eight EAS). IPSS results were partitioned into true positive for CD (n = 16), true negative (n = 7), false negative (n = 1), and false positive (n = 1). Prolactin IPS/P ratio suggested successful IPSS in eight of 11 with abnormal venograms. Baseline prolactin IPS/P ratio was helpful in two patients with abnormal venograms and false-negative (catheterization unsuccessful) or true-negative (catheterization successful) IPSS results; the normalized ratio correctly diagnosed their disease. Normalized ACTH IPS/P ratio was at least 1.3 in all with CD, but prolactin IPS/P ratios were misleadingly low in two. One patient with cyclic EAS had a false-positive IPSS when eucortisolemic (baseline prolactin IPS/P = 1.7; normalized ratio = 5.6). All other EAS patients had normalized ratios no higher than 0.7. CONCLUSION: Prolactin measurement and evaluation of the venogram can improve diagnostic accuracy when IPSS results suggest EAS but is not necessary with positive IPSS results. Confirmation of hypercortisolemia remains a prerequisite for IPSS. A normalized ratio of 0.7-1.3 was not diagnostic.


Assuntos
Síndrome de ACTH Ectópico/diagnóstico , Síndrome de Cushing/diagnóstico , Amostragem do Seio Petroso/métodos , Prolactina/sangue , Síndrome de ACTH Ectópico/sangue , Adulto , Idoso , Síndrome de Cushing/sangue , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
8.
J Clin Endocrinol Metab ; 93(7): 2454-62, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18413427

RESUMO

OBJECTIVE: Our objective was to evaluate the published literature and reach a consensus on the treatment of patients with ACTH-dependent Cushing's syndrome, because there is no recent consensus on the management of this rare disorder. PARTICIPANTS: Thirty-two leading endocrinologists, clinicians, and neurosurgeons with specific expertise in the management of ACTH-dependent Cushing's syndrome representing nine countries were chosen to address 1) criteria for cure and remission of this disorder, 2) surgical treatment of Cushing's disease, 3) therapeutic options in the event of persistent disease after transsphenoidal surgery, 4) medical therapy of Cushing's disease, and 5) management of ectopic ACTH syndrome, Nelson's syndrome, and special patient populations. EVIDENCE: Participants presented published scientific data, which formed the basis of the recommendations. Opinion shared by a majority of experts was used where strong evidence was lacking. CONSENSUS PROCESS: Participants met for 2 d, during which there were four chaired sessions of presentations, followed by general discussion where a consensus was reached. The consensus statement was prepared by a steering committee and was then reviewed by all authors, with suggestions incorporated if agreed upon by the majority. CONCLUSIONS: ACTH-dependent Cushing's syndrome is a heterogeneous disorder requiring a multidisciplinary and individualized approach to patient management. Generally, the treatment of choice for ACTH-dependent Cushing's syndrome is curative surgery with selective pituitary or ectopic corticotroph tumor resection. Second-line treatments include more radical surgery, radiation therapy (for Cushing's disease), medical therapy, and bilateral adrenalectomy. Because of the significant morbidity of Cushing's syndrome, early diagnosis and prompt therapy are warranted.


Assuntos
Hormônio Adrenocorticotrópico/metabolismo , Síndrome de Cushing/terapia , Síndrome de ACTH Ectópico/terapia , Insuficiência Adrenal/terapia , Adrenalectomia , Humanos , Hipofisectomia , Metirapona/uso terapêutico , Mitotano/uso terapêutico , Síndrome de Nelson/terapia
9.
J Endocrinol Invest ; 26(8): 710-7, 2003 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-14669823

RESUMO

Cushing's syndrome (CS) due to ectopic ACTH secretion (EAS) has a high morbidity and mortality, because of the underlying tumor and the sequelae of severe hypercortisolemia. Therefore, rapid treatment of ectopic CS is mandatory. Scintigraphy shows that up to 80% of ectopic ACTH-producing tumors have somatostatin receptors. While this suggests that somatostatin analogs may reduce ACTH production and treat patients with EAS, the therapeutic role of these agents is still evolving. Here we demonstrate the spectrum of responses to octreotide therapy in 3 patients with EAS. Diagnostic imaging with the 111In-pentetreotide scan did not predict the therapeutic response to octreotide. Two patients with positive somatostatin receptor scintigraphy failed to respond to octreotide, while one with a negative scan reached eucortisolemia on a maintenance dose of 75 microg octreotide twice daily or octreotide LAR 30 mg per month. We conclude that octreotide is not a first line agent to control hypercortisolemia but may be a useful agent when other inhibitors of steroidogenesis fail or parenteral administration is required. Before therapy an octreotide challenge test may predict therapeutic response. Cortisol levels should be monitored regularly on somatostatin analog therapy, because of its unpredictable long-term pharmacodynamic profile.


Assuntos
Antineoplásicos Hormonais/uso terapêutico , Síndrome de Cushing/tratamento farmacológico , Octreotida/uso terapêutico , Somatostatina/análogos & derivados , Hormônio Adrenocorticotrópico/sangue , Adulto , Síndrome de Cushing/diagnóstico por imagem , Antagonistas de Hormônios/uso terapêutico , Humanos , Hidrocortisona/sangue , Masculino , Cintilografia , Compostos Radiofarmacêuticos , Somatostatina/uso terapêutico
10.
Hum Reprod ; 18(3): 502-5, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12615814

RESUMO

Isolated FSH deficiency due to a mutation in the FSHbeta subunit is characterized by an extremely low serum FSH concentration. We report a patient who presented with an FSH of 0.8 mIU/ml and infertility associated with anovulation. Endocrinological assessment and immunohistochemistry revealed that a granulosa cell tumour was secreting inhibin B and suppressing FSH; however, LH and estradiol were within their normal ranges. Upon removal of the tumour, inhibin B decreased and FSH levels rose to normal values. The patient subsequently conceived and delivered successfully. Based on this case and on those previously described in the literature, we suggest that inhibin B levels should be evaluated in anovulatory patients having a clinical presentation consistent with functional hypothalamic amenorrhoea and very low to normal values of FSH.


Assuntos
Hormônio Foliculoestimulante/deficiência , Tumor de Células da Granulosa/metabolismo , Inibinas/metabolismo , Neoplasias Ovarianas/metabolismo , Adulto , Parto Obstétrico , Feminino , Fertilização , Tumor de Células da Granulosa/complicações , Tumor de Células da Granulosa/diagnóstico por imagem , Tumor de Células da Granulosa/cirurgia , Humanos , Imuno-Histoquímica/métodos , Infertilidade Feminina/etiologia , Neoplasias Ovarianas/complicações , Neoplasias Ovarianas/diagnóstico por imagem , Neoplasias Ovarianas/cirurgia , Recuperação de Função Fisiológica , Coloração e Rotulagem , Ultrassonografia
11.
Hum Reprod ; 17(10): 2715-24, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12351553

RESUMO

BACKGROUND: Women with endometriosis may also have associated disorders related to autoimmune dysregulation or pain. This study examined whether the prevalence of autoimmune, chronic pain and fatigue and atopic disorders is higher in women with endometriosis than in the general female population. METHODS AND RESULTS: A cross-sectional survey was conducted in 1998 by the Endometriosis Association of 3680 USA members with surgically diagnosed endometriosis. Almost all responders had pain (99%), and many reported infertility (41%). Compared with published rates in the general USA female population, women with endometriosis had higher rates of hypothyroidism (9.6 versus 1.5%, P < 0.0001), fibromyalgia (5.9 versus 3.4%, P < 0.0001), chronic fatigue syndrome (4.6 versus 0.03%, P < 0.0001), rheumatoid arthritis (1.8 versus 1.2%, P = 0.001), systemic lupus erythematosus (0.8 versus 0.04%, P < 0.0001), Sjögren's syndrome (0.6 versus 0.03%, P < 0.0001) and multiple sclerosis (0.5 versus 0.07%, P < 0.0001), but not hyperthyroidism or diabetes. Allergies and asthma were more common among women with endometriosis alone (61%, P < 0.001 and 12%, P < 0.001 respectively) and highest in those with fibromyalgia or chronic fatigue syndrome (88%, P < 0.001 and 25%, P < 0.001 respectively) than in the USA female population (18%, P < 0.001 and 5%, P < 0.001 respectively). CONCLUSIONS: Hypothyroidism, fibromyalgia, chronic fatigue syndrome, autoimmune diseases, allergies and asthma are all significantly more common in women with endometriosis than in women in the general USA population.


Assuntos
Doenças Autoimunes/complicações , Doenças do Sistema Endócrino/complicações , Endometriose/complicações , Síndrome de Fadiga Crônica/complicações , Fibromialgia/complicações , Hipersensibilidade Imediata/complicações , Adolescente , Adulto , Asma/complicações , Asma/epidemiologia , Doenças Autoimunes/epidemiologia , Estudos Transversais , Eczema/complicações , Eczema/epidemiologia , Doenças do Sistema Endócrino/epidemiologia , Endometriose/diagnóstico , Endometriose/genética , Síndrome de Fadiga Crônica/epidemiologia , Feminino , Fibromialgia/epidemiologia , Humanos , Hipersensibilidade Imediata/epidemiologia , Hipertireoidismo/complicações , Hipertireoidismo/epidemiologia , Infertilidade Feminina/complicações , Infertilidade Feminina/epidemiologia , Pessoa de Meia-Idade , Dor
12.
Acad Med ; 76(5): 478-83, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11346528

RESUMO

Learning primary care medicine includes learning to apply practical, preventive medicine skills during everyday encounters with patients. The authors relate their experiences with implementing a voluntary, preventive diabetic foot-care program within the Texas Statewide Family Practice Preceptorship Program (TSFPPP). They explain the background of the TSFPPP and their rationale for introducing prevention and selecting diabetic foot care as a first preventive training module. The program's structure, educational materials, and evaluations are described. Of the 158 students and 88 preceptors who were exposed to the program, the authors received evaluations from 86 preceptors and 110 students. Students documented that they had screened and provided foot-care education to 321 diabetic patients. On average, students saved their preceptors 5-10 minutes each time they examined a diabetic patient's feet or provided foot-care education. The students said that the wide variety of preceptors' practices, the time constraints placed upon the preceptors, and the preceptors' own guidelines for the voluntary preceptorship all posed challenges to completing the preventive activities. The preceptors reported that preclinical students could play an important preventive role in their practices; however, to get optimum results from a preventive module, it may be important for students and preceptors to determine which topics are introduced. Using the preceptor's suggestions, the authors are developing a smoking-cessation module.


Assuntos
Atitude do Pessoal de Saúde , Estágio Clínico/organização & administração , Competência Clínica/normas , Pé Diabético/prevenção & controle , Medicina de Família e Comunidade/educação , Preceptoria/organização & administração , Medicina Preventiva/educação , Análise de Variância , Pé Diabético/diagnóstico , Humanos , Exame Físico/normas , Papel do Médico , Médicos de Família/psicologia , Avaliação de Programas e Projetos de Saúde , Estudantes de Medicina/psicologia , Inquéritos e Questionários , Texas , Estudos de Tempo e Movimento
13.
Am J Obstet Gynecol ; 183(2): 414-20, 2000 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10942479

RESUMO

OBJECTIVES: We examined the efficacy of estrogen in the treatment of depression in perimenopausal women with and without hot flushes. STUDY DESIGN: Women with perimenopause-related depression were randomized in a double-blind parallel design to receive either 17beta-estradiol or placebo for 3 weeks. Subsequently, women receiving estradiol during the first 3 weeks continued receiving estradiol for an additional 3 weeks, whereas women who had received placebo crossed over to estradiol for 3 weeks. Outcome measures included standardized mood rating scales and a visual analog scale self-report instrument. RESULTS: Of 34 female subjects, 16 received estradiol first and 18 received placebo first. After 3 weeks of estradiol, standardized mood rating scale scores and visual analog scale symptom scores (eg, sadness, anhedonia, and social isolation) were significantly decreased compared with baseline scores (P <.01) and were significantly lower than scores in women receiving placebo (P <.01), who showed no significant improvement. Neither the presence of hot flushes nor the duration of treatment (3 weeks vs 6 weeks) influenced outcome. A full or partial therapeutic response was seen in 80% of subjects receiving estradiol and 22% of those receiving placebo. CONCLUSION: In this preliminary study estradiol replacement effectively treats perimenopausal depression independent of its salutary effects on vasomotor symptoms.


Assuntos
Depressão/tratamento farmacológico , Terapia de Reposição de Estrogênios , Pré-Menopausa/psicologia , Estudos Cross-Over , Depressão/complicações , Depressão/psicologia , Método Duplo-Cego , Quimioterapia Combinada , Estradiol/uso terapêutico , Feminino , Fogachos/complicações , Fogachos/fisiopatologia , Humanos , Pessoa de Meia-Idade , Progestinas/uso terapêutico , Resultado do Tratamento
14.
Am J Psychiatry ; 157(6): 924-30, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10831472

RESUMO

OBJECTIVE: Endocrine factors are purported to play a role in the etiology of postpartum depression, but direct evidence for this role is lacking. The authors investigated the possible role of changes in gonadal steroid levels in postpartum depression by simulating two hormonal conditions related to pregnancy and parturition in euthymic women with and without a history of postpartum depression. METHOD: The supraphysiologic gonadal steroid levels of pregnancy and withdrawal from these high levels to a hypogonadal state were simulated by inducing hypogonadism in euthymic women-eight with and eight without a history of postpartum depression-with the gonadotropin-releasing hormone agonist leuprolide acetate, adding back supraphysiologic doses of estradiol and progesterone for 8 weeks, and then withdrawing both steroids under double-blind conditions. Outcome measures were daily symptom self-ratings and standardized subjective and objective cross-sectional mood rating scales. RESULTS: Five of the eight women with a history of postpartum depression (62.5%) and none of the eight women in the comparison group developed significant mood symptoms during the withdrawal period. Analysis of variance with repeated measures of daily and cross-sectional ratings of mood showed significant phase-by-group effects. These effects reflected significant increases in depressive symptoms in women with a history of postpartum depression but not in the comparison group after hormone withdrawal (and during the end of the hormone replacement phase), compared with baseline. CONCLUSIONS: The data provide direct evidence in support of the involvement of the reproductive hormones estrogen and progesterone in the development of postpartum depression in a subgroup of women. Further, they suggest that women with a history of postpartum depression are differentially sensitive to mood-destabilizing effects of gonadal steroids.


Assuntos
Depressão Pós-Parto/fisiopatologia , Estradiol/fisiologia , Progesterona/fisiologia , Adulto , Afeto/efeitos dos fármacos , Estudos Transversais , Depressão Pós-Parto/sangue , Depressão Pós-Parto/diagnóstico , Estradiol/administração & dosagem , Estradiol/sangue , Feminino , Humanos , Hipogonadismo/sangue , Hipogonadismo/etiologia , Hipogonadismo/fisiopatologia , Leuprolida/farmacologia , Pessoa de Meia-Idade , Transtornos do Humor/etiologia , Inventário de Personalidade/estatística & dados numéricos , Placebos , Progesterona/administração & dosagem , Progesterona/sangue , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Síndrome de Abstinência a Substâncias/sangue , Síndrome de Abstinência a Substâncias/etiologia , Síndrome de Abstinência a Substâncias/fisiopatologia
15.
Hum Reprod ; 15(5): 1092-9, 2000 May.
Artigo em Inglês | MEDLINE | ID: mdl-10783359

RESUMO

Previous studies in women have shown that the antiprogestin mifepristone delays or inhibits folliculogenesis. The purpose of this study was to explore whether a new analogue, CDB-2914, has similar effects on folliculogenesis, ovulation, or on subsequent luteal phase endometrial maturation. Forty-four normally cycling, healthy women recorded urine LH and vaginal bleeding during pre-treatment, treatment, and post-treatment cycles. At a lead follicle diameter of 14-16 mm, a single oral dose (10, 50, 100 mg) of CDB-2914 or placebo was given, and daily ultrasound, oestradiol and progesterone were obtained until follicular collapse; an endometrial biopsy was obtained 5-7 days later. Single doses of CDB-2914 were well tolerated. Mid-follicular CDB-2914 suppressed lead follicle growth, causing a dose-dependent delay in folliculogenesis and suppression of plasma oestradiol. At higher doses, a new lead follicle was often recruited. Although luteinized unruptured follicles were observed at the 100 mg dose, all women had follicular collapse. There was a significant delay in endometrial maturation after CDB-2914 at all doses. The treatment cycle was lengthened by 1-2 weeks in 30% at 100, 27% at 50 and 9% at 10 mg. CDB-2914 altered ovarian and endometrial physiology without major effects on menstrual cyclicity and may have therapeutic utility.


Assuntos
Anticoncepcionais Sintéticos Pós-Coito/farmacologia , Endométrio/efeitos dos fármacos , Ciclo Menstrual/efeitos dos fármacos , Norpregnadienos/farmacologia , Folículo Ovariano/efeitos dos fármacos , Adolescente , Adulto , Biópsia , Diferenciação Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Endométrio/citologia , Endométrio/patologia , Estradiol/sangue , Feminino , Humanos , Hormônio Luteinizante/sangue , Ciclo Menstrual/fisiologia , Cistos Ovarianos , Ovulação/efeitos dos fármacos
16.
Trends Endocrinol Metab ; 11(3): 86-90, 2000 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10707048

RESUMO

Here, we report pathogenetic aspects of spinal epidural lipomatosis (SEL) based on a literature review. SEL is a rare entity but can cause significant morbidity. Its symptoms can be identical to those of more common disorders such as vertebral and disc disease, and cord lesions (for example, transverse myelitis, multiple sclerosis and syringomyelia). Therefore, it often goes undiagnosed. In addition, SEL occurs in patients on glucocorticoid therapy, which can lead to myopathy, thereby mimicking the motor symptoms of SEL. Glucocorticoids seem to play a major role in the development of SEL, although idiopathic SEL has also been reported. The latter occurs almost exclusively in obese individuals who may have concurrent hypercortisolism. Once clinically suspected, SEL is best diagnosed by magnetic resonance imaging (MRI). Treatment of SEL is directed at reducing body weight in patients with idiopathic SEL, and at decreasing glucocorticoid excess in patients with endogenous or exogenous hypercortisolism. In severe cases, decompressive laminectomy might become necessary to alleviate the neurological symptoms caused by spinal cord compression.


Assuntos
Glucocorticoides/efeitos adversos , Lipomatose/induzido quimicamente , Doenças da Medula Espinal/induzido quimicamente , Espaço Epidural , Humanos , Lipomatose/terapia
17.
J Cancer Educ ; 15(1): 46-50, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-10730804

RESUMO

BACKGROUND: African American women have higher incidences of breast and cervical cancers and African American men present with more advanced stages of colon and prostate cancers than do their non-African American counterparts. Since the church is central to the organization of the African American community, the authors set out to determine whether a church-directed educational project could influence parishioners to obtain cancer screening. METHODS: Three African American churches having memberships of 250, 500, and 1,500, respectively, were selected for their different socioeconomic strata: one congregation was composed mostly of working poor, the second was more affluent, and the third consisted primarily of retirees. During a five-week summer period, appropriate literature, health fairs, testimonials by cancer survivors, and visits by representatives of the medical community were used to increase awareness of cancer screening. Surveys regarding cancer-screening behaviors were distributed at the end of church services. Using the guidelines established by the American Cancer Society, individual recommendations for screening examinations were developed and sent to parishioners based on their survey responses. RESULTS: Of 437 parishioners surveyed (73% female, 27% male), 75% were 40 years old or older. Many reported up-to-date screening for breast (84%), cervical (78%), colon (62%), and prostate (89%) cancers. The results were remarkably similar in all three churches. Telephone follow-up seven months after the survey directed at the 120 parishioners identified as noncompliant for at least one cancer screening revealed that 49% had obtained the appropriate screenings. CONCLUSIONS: These African American churchgoers were well screened compared with estimated national averages, possibly due to previous efforts of the activist ministers in the churches selected. The message for cancer screening is heeded when delivered through the African American church.


Assuntos
Atitude Frente a Saúde/etnologia , Negro ou Afro-Americano , Educação em Saúde/organização & administração , Programas de Rastreamento/organização & administração , Neoplasias/prevenção & controle , Religião e Medicina , Adulto , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/etnologia , Participação do Paciente , Philadelphia , Vigilância da População , Inquéritos e Questionários
18.
Medicine (Baltimore) ; 79(1): 9-26, 2000 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-10670406

RESUMO

Systematic review of the available information with a modified, largely quantitative method of research synthesis disclosed that an initial trial of thyroid hormone suppression therapy leads to clinically significant (> or = 50%) reduction of nodule size or arrest of nodule growth in a subset of patients with benign solitary thyroid nodules. In fact, in addition to objective improvements due to decreasing nodule size, L-T4 suppression therapy may benefit patients by reducing perinodular thyroid volume. Consequently, both pressure symptoms and cosmetic complaints may improve (9, 68). Additional studies for the assessment of the risks versus benefits of supraphysiologic doses of L-T4, the optimal level of thyroid suppression and the dose needed to achieve this magnitude of reduction, the optimal length of the initial trial, and the conditions for the continuation of L-T4 thyroid suppression therapy, as well as the identification of markers for patients most likely to respond to this therapy, are warranted. Finally, quantitative assessment of available evidence as described here may be applicable to the review of other controversial issues as well.


Assuntos
Antitireóideos/administração & dosagem , Nódulo da Glândula Tireoide/tratamento farmacológico , Adulto , Ensaios Clínicos como Assunto , Conferências para Desenvolvimento de Consenso de NIH como Assunto , Humanos , Pesquisa , Tiroxina/antagonistas & inibidores , Estados Unidos
19.
J Clin Endocrinol Metab ; 85(1): 42-7, 2000 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-10634361

RESUMO

Because high circulating levels of glucocorticoids impair immunity and predispose to infections, we evaluated whether indices of cortisol (F) production could predict infections in patients with Cushing syndrome (CS) caused by ectopic production of ACTH (EA). Charts of 54 consecutive patients with untreated EA, without underlying diagnosis of small cell carcinoma of the lung, were reviewed, and types of infections, white blood cell (WBC) count, fever, as well as the glucocorticoid indices [0800 h F, daily urine F excretion (UFC), and daily urine 17-hydroxysteroid/g creatinine excretion (17OHS)], were recorded. Thirty-five patients had no or clinically mild infection; the remaining 19 patients had severe, systemic infection (n = 13) and/or sepsis (n = 6), including either bacterial or opportunistic pathogens or both (73.7%, 42.1%, and 13.8%, respectively). The latter group of patients had significantly higher indices of hypercortisolism (F, UFC, and 17OHS) than those with mild or no infections, but these indices did not correlate with temperature or WBC count. Thresholds for identifying severe infection were selected for maximal positive predictive value and were: F, 43.1 microg/dL; UFC, 2000 microg/day; and 17OHS, 35 mg/g creatinine. The most accurate discriminator for severe infection was 17OHS, based on a positive predictive value of 64.7%. Our data strongly suggests that the likelihood for a bacterial or opportunistic infection in CS patients, even without underlying small cell carcinoma of the lung, is greatest in patients with extreme hypercortisolism. The predictive value of total WBC count or the presence of an elevated temperature is not sufficient to identify patients with severe, life-threatening infection.


Assuntos
Hormônio Adrenocorticotrópico/biossíntese , Síndrome de Cushing/sangue , Síndrome de Cushing/complicações , Hormônios Ectópicos/biossíntese , Hidrocortisona/sangue , Infecções/complicações , Adolescente , Adulto , Idoso , Criança , Síndrome de Cushing/metabolismo , Feminino , Febre/sangue , Humanos , Hidrocortisona/urina , Contagem de Leucócitos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
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