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Beverly MK Biller Annamaria Colao Stephan Petersenn Vivien S Bonert Marco Boscaro 《BMC endocrine disorders》2010,10(1):1-14
Pituitary adenomas are associated with a variety of clinical manifestations resulting from excessive hormone secretion and tumor mass effects, and require a multidisciplinary management approach. This article discusses the treatment modalities for the management of patients with a prolactinoma, Cushing's disease and acromegaly, and summarizes the options for medical therapy in these patients. First-line treatment of prolactinomas is pharmacotherapy with dopamine agonists; recent reports of cardiac valve abnormalities associated with this class of medication in Parkinson's disease has prompted study in hyperprolactinemic populations. Patients with resistance to dopamine agonists may require other treatment. First-line treatment of Cushing's disease is pituitary surgery by a surgeon with experience in this condition. Current medical options for Cushing's disease block adrenal cortisol production, but do not treat the underlying disease. Pituitary-directed medical therapies are now being explored. In several small studies, the dopamine agonist cabergoline normalized urinary free cortisol in some patients. The multi-receptor targeted somatostatin analogue pasireotide (SOM230) shows promise as a pituitary-directed medical therapy in Cushing's disease; further studies will determine its efficacy and safety. Radiation therapy, with medical adrenal blockade while awaiting the effects of radiation, and bilateral adrenalectomy remain standard treatment options for patients not cured with pituitary surgery. In patients with acromegaly, surgery remains the first-line treatment option when the tumor is likely to be completely resected, or for debulking, especially when the tumor is compressing neurovisual structures. Primary therapy with somatostatin analogues has been used in some patients with large extrasellar tumors not amenable to surgical cure, patients at high surgical risk and patients who decline surgery. Pegvisomant is indicated in patients who have not responded to surgery and other medical therapy, although there are regional differences in when it is prescribed. In conclusion, the treatment of patients with pituitary adenomas requires a multidisciplinary approach. Dopamine agonists are an effective first-line medical therapy in most patients with a prolactinoma, and somatostatin analogues can be used as first-line therapy in selected patients with acromegaly. Current medical therapies for Cushing's disease primarily focus on adrenal blockade of cortisol production, although pasireotide and cabergoline show promise as pituitary-directed medical therapy for Cushing's disease; further long-term evaluation of efficacy and safety is important. 相似文献
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A modified Denckla and Dewey (1967, J. Lab. Clin. Med.69, 160–169) method for the determination of plasma tryptophan by manual operation or with the aid of a Technicon Autoanalyzer is described. 相似文献
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Jung Soh Paul MK Gordon Morgan L Taschuk Anguo Dong Andrew C Ah-Seng Andrei L Turinsky Christoph W Sensen 《BMC bioinformatics》2008,9(1):450
Background
The Bluejay genome browser has been developed over several years to address the challenges posed by the ever increasing number of data types as well as the increasing volume of data in genome research. Beginning with a browser capable of rendering views of XML-based genomic information and providing scalable vector graphics output, we have now completed version 1.0 of the system with many additional features. Our development efforts were guided by our observation that biologists who use both gene expression profiling and comparative genomics gain functional insights above and beyond those provided by traditional per-gene analyses. 相似文献86.
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Gwyneth Evans Margot K. Hartmann Liliana Wood M. K. Gaitonde 《Journal of neurochemistry》1979,32(4):1303-1308
Abstract— The evidence is presented to show that the fiuorimetric method of W aalkes & U denfriend (1957) cannot be used directly for the determination of free tyrosine in acid deproteinized extracts of rat brain, owing to the reaction of peptide bound tyrosine in some proteins present in the acid extracts. A method is given to obtain a fraction containing free tyrosine in the acid extracts of rat brain and to determine its tyrosine content fluorimetrically by autoanalysis. An autoanalysis method is also given for the fiuorimetric determination of free tyrosine directly in 50 trichloroacetic acid extracts of the plasma. 相似文献
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