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Pituitary adenoma current therapy

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https://www.readbyqxmd.com/read/28629376/radiation-therapy-for-older-patients-with-brain-tumors
#1
REVIEW
Giuseppe Minniti, Andrea Riccardo Filippi, Mattia Falchetto Osti, Umberto Ricardi
The incidence of brain tumors in the elderly population has increased over the last few decades. Current treatment includes surgery, radiotherapy and chemotherapy, but the optimal management of older patients with brain tumors remains a matter of debate, since aggressive radiation treatments in this population may be associated with high risks of neurological toxicity and deterioration of quality of life. For such patients, a careful clinical status assessment is mandatory both for clinical decision making and for designing randomized trials to adequately evaluate the optimal combination of radiotherapy and chemotherapy...
June 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28472827/3d-volumetric-measurements-of-gh-secreting-adenomas-correlate-with-baseline-pituitary-function-initial-surgery-success-rate-and-disease-control
#2
Amit Tirosh, Georgios Z Papadakis, Prashant Chittiboina, Charalampos Lyssikatos, Elena Belyavskaya, Meg Keil, Maya B Lodish, Constantine A Stratakis
There is scarce data on the clinical utility of volume measurement for growth hormone (GH)-secreting pituitary adenomas. The current study objective was to assess the association between pituitary adenoma volumes and baseline endocrine evaluation, initial surgical success rate, and disease control among patients with acromegaly. A retrospective cohort study was conducted at a clinical research center including patients with acromegaly due to GH-secreting pituitary adenomas. Baseline hormonal evaluation and adenoma characteristics according to MRI were collected...
May 4, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28468768/management-of-endocrine-disease-present-and-future-perspectives-for-medical-therapy-of-non-functioning-pituitary-adenomas
#3
Yona Greenman
In contrast to the clear indication for surgical treatment in symptomatic patients with clinically nonfunctioning pituitary adenomas (NFPA), there are no randomized controlled studies comparing therapeutic strategies such as watchful waiting, irradiation, or medical therapy for the management of NFPA after surgery. Further, no medical therapy is currently approved for the treatment of NFPA. In this review, we summarize accumulating data on medications currently approved for secreting pituitary adenomas, used off-label in patients with NFPA...
May 3, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28377801/current-best-practice-in-the-management-of-patients-after-pituitary-surgery
#4
REVIEW
Alessandro Prete, Salvatore Maria Corsello, Roberto Salvatori
Sellar and parasellar masses are a common finding, and most of them are treated surgically via transsphenoidal approach. This type of surgery has revolutionized the approach to several hypothalamic-pituitary diseases and is usually effective, and well-tolerated by the patient. However, given the complex anatomy and high density of glandular, neurological and vascular structures in a confined space, transsphenoidal surgery harbors a substantial risk of complications. Hypopituitarism is one of the most frequent sequelae, with central adrenal insufficiency being the deficit that requires a timely diagnosis and treatment...
March 2017: Therapeutic Advances in Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28089836/delayed-cerebrospinal-fluid-rhinorrhea-after-gamma-knife-radiosurgery-with-or-without-preceding-transsphenoidal-resection-for-pituitary-pathology
#5
Avital Perry, Christopher S Graffeo, William R Copeland, Kathryn M Van Abel, Matthew L Carlson, Bruce E Pollock, Michael J Link
BACKGROUND: Skull base cerebrospinal fluid (CSF) leak after gamma knife radiosurgery (GKRS) is a very rare complication. In patients who were treated with both GKRS and transsphenoidal resection (TSR) for pituitary lesions, early CSF leak occurs at a comparable rate with the general TSR population (4%). Delayed CSF leak occurring more than a year after TSR, GKRS, or dual therapy is exceedingly rare. METHODS: Retrospective chart review and review of the literature...
April 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27894193/currently-used-and-investigational-drugs-for-cushing%C3%A2-s-disease
#6
REVIEW
Denis Ciato, Aizhar G Mumbach, Marcelo Paez-Pereda, Günter K Stalla
Cushing's disease (CD) is caused by a corticotroph adenoma of the pituitary gland that secretes excess adrenocorticotropic hormone (ACTH) causing increased morbidity and mortality. Surgery is the treatment of choice, but is not always successful. Alternatives include radiotherapy, adrenal surgery, and pharmaceutical therapy. The latter is increasingly gaining momentum due to the recent development of compounds that reduce hypercortisolaemia or its symptoms, acting through different mechanisms. Areas covered: In this article, the authors provide a complete overview of the treatment options for Cushing´s disease, including adrenal-directed, tumor-targeted, and peripheral therapies that are currently used or in development, and discuss their potential advantages and limitations...
January 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/27893664/genetic-aspects-of-pituitary-carcinoma-a-systematic-review
#7
REVIEW
Zijiang Yang, Ting Zhang, Heng Gao
BACKGROUND: Pituitary carcinoma (PC) is a rare type of malignant intracranial neoplasm defined as distant metastasis of pituitary adenoma (PA). Although PC incidence is low because only 0.1% to 0.2% of PAs ultimately develop into PCs, the prognosis is poor and 66% of patients die within the first year. Existing therapeutic measures, including surgical removal, chemotherapy, and radiotherapy, have limited effectiveness. The lack of efficacy of current treatments is largely caused by the limited understanding of the molecular pathogenesis of PA and the malignant transformation to PC...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27551432/temozolomide-treatment-of-pituitary-carcinomas-and-atypical-adenomas-systematic-review-of-case-reports
#8
Yan Ji, Rachel Isaksson Vogel, Emil Lou
BACKGROUND: Pituitary carcinomas (PC) and atypical pituitary adenomas (APA) are rare variants of pituitary tumors for which no evidence-based treatment currently exists. We sought to determine whether temozolomide represents an effective chemotherapeutic option for patients with PC and APA. METHODS: A systematic review was performed using all published cases of PC and APA treated with temozolomide, and for which information on treatment regimen, clinical response, and survival could be identified...
September 2016: Neuro-oncology Practice
https://www.readbyqxmd.com/read/27517036/advancing-treatment-of-pituitary-adenomas-through-targeted-molecular-therapies-the-acromegaly-and-cushing-disease-paradigms
#9
REVIEW
Michael A Mooney, Elias D Simon, Andrew S Little
The current treatment of pituitary adenomas requires a balance of conservative management, surgical resection, and in select tumor types, molecular therapy. Acromegaly treatment is an evolving field where our understanding of molecular targets and drug therapies has improved treatment options for patients with excess growth hormone levels. We highlight the use of molecular therapies in this disease process and advances in this field, which may represent a paradigm shift for the future of pituitary adenoma treatment...
2016: Frontiers in Surgery
https://www.readbyqxmd.com/read/27498733/primary-immune-thrombocytopenia-accompanied-by-pituitary-apoplexy
#10
REVIEW
Takahiro Tsuji, Hiromi Mochinaga, Hiroshi Yamasaki, Hiroyuki Tsuda
An 83-year-old woman was admitted to our hospital with a severe headache and purpura. She had previously been diagnosed with idiopathic thrombocytopenia purpura (ITP) and achieved complete remission with steroid therapy. Steroid therapy had been completed one week prior to the current admission. The recurrence of severe thrombocytopenia (<1.0×10(4) platelets/μl) was detected and a CT scan revealed pituitary hemorrhage without pituitary adenoma. She received steroid therapy combined with intravenous immunoglobulin, which resulted in the amelioration of ITP and improvements in the pituitary hemorrhage...
July 2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27465333/over-expression-of-lrig1-suppresses-biological-function-of-pituitary-adenoma-via-attenuation-of-pi3k-akt-and-ras-raf-erk-pathways-in-vivo-and-in-vitro
#11
Shi-Qi Cheng, Heng-Yi Fan, Xin Xu, Wei-Wei Gao, Shi-Gang Lv, Min-Hua Ye, Miao-Jing Wu, Xiao-Li Shen, Zu-Jue Cheng, Xin-Gen Zhu, Yan Zhang
Pituitary adenomas (PAs) are well known as a common intracranial benign tumor, and a portion of PAs are refractory to current therapeutic methods. ErbB receptors family signaling pathway regulates the expression of PAs activation associated gene. Inhibition of epidermal growth factor receptor (EGFR) can inhibit proliferation of PAs. Leucine-rich repeats and immunoglobulin-like domains protein 1 ( LRIG1), a negative mediated gene of ErbB receptors family, plays a role in many tumors. However, there are seldom researches about the functional role of LRIG1 in PAs...
August 2016: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/27455094/somatostatin-receptor-expression-in-gh-secreting-pituitary-adenomas-treated-with-long-acting-somatostatin-analogues-in-combination-with-pegvisomant
#12
Sanne E Franck, Federico Gatto, Aart Jan van der Lely, Joseph A M J L Janssen, Alof H G Dallenga, A Paul Nagtegaal, Leo J Hofland, Sebastian J C M M Neggers
BACKGROUND: Growth hormone-secreting pituitary adenomas (somatotroph adenoma) predominantly express somatostatin receptors (SSTRs) subtypes 2 and 5. Higher SSTR2 expression on somatotroph adenomas results in a better response to somatostatin analogues (SSAs), which preferentially bind, but also downregulate, SSTR2. The effect of the combined treatment with SSAs and the GH receptor antagonist pegvisomant (PEGV) on SSTR expression in somatotroph adenomas is currently unknown. AIM OF THE STUDY: To assess SSTR2 and SSTR5 expression in three groups of somatotroph adenomas: drug-naive, treated with long-acting (LA) SSA monotherapy, or LA-SSA/PEGV combination therapy before surgery...
2017: Neuroendocrinology
https://www.readbyqxmd.com/read/27454103/therapeutic-compounds-for-cushing-s-syndrome-a-patent-review-2012-2016
#13
REVIEW
Li Ma, Lina Yin, Qingzhong Hu
Endogenous Cushing's syndrome (CS) is a set of disorders caused by chronic exposure to excess glucocorticoids induced by neuroendocrine tumors in pituitary, adrenals, and infrequently other sites (ectopic ACTH syndrome). Due to various comorbidities, CS patients exhibit higher risks of cardiovascular diseases and thus increased mortality. Pharmaceutical therapy is an important constituent of treatment regimen. Areas covered: Patents published since 2012 are reviewed, which claim therapeutic compounds interfering with ACTH secretion and down-stream signal transduction, inhibiting cortisol biosynthesis and antagonizing glucocorticoid receptors...
November 2016: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/27352098/current-and-future-medical-treatments-for-patients-with-acromegaly
#14
REVIEW
Filippo Maffezzoni, Anna Maria Formenti, Gherardo Mazziotti, Stefano Frara, Andrea Giustina
INTRODUCTION: Acromegaly is a relatively rare condition of growth hormone (GH) excess associated with significant morbidity and, when left untreated, high mortality. Therapy for acromegaly is targeted at decreasing GH and insulin-like growth hormone 1 levels, ameliorating patients' symptoms and decreasing any local compressive effects of the pituitary adenoma. The therapeutic options for acromegaly include surgery, medical therapies (such as dopamine agonists, somatostatin receptor ligands and the GH receptor antagonist pegvisomant) and radiotherapy...
August 2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/27207245/therapy-of-endocrine-disease-surgery-in-microprolactinomas-effectiveness-and-risks-based-on-contemporary-literature
#15
REVIEW
Metaxia Tampourlou, Raluca Trifanescu, Alessandro Paluzzi, Shahzada K Ahmed, Niki Karavitaki
Microprolactinomas are the most common pituitary adenomas. In symptomatic patients, dopamine agonists are the first-line treatment of choice; when cabergoline is used, biochemical control rates between 85 and 93% have been reported. Long-term treatment is needed in most of the cases with compliance, patient convenience, and potential adverse effects representing areas requiring attention. Based on the literature published in the past 15 years, transsphenoidal surgery can lead to normal prolactin in the postoperative period in usually 71-100% of the cases with very low postoperative complication rates...
September 2016: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27030224/-indications-and-future-perspectives-in-the-pharmacological-treatment-of-hypercortisolism
#16
Antonio Stigliano, Vincenzo Toscano
The hypercortisolism is a rare endocrine disease characterized by an autonomous steroid secretion or excessive adrenal stimulation by ACTH. the Surgical removal of the lesion directly responsible hypercortisolism represents the treatment of choice. When neurosurgery for pituitary adenoma is contraindicated, radiotherapy is candidate as the second line of therapy. Currently, the recent advances in medical therapy provide a viable alternative to surgery and radiotherapy, when these are not feasible or followed by relapses (present in more than one third of cases) of the underlying disease...
March 2016: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/26873451/acromegaly
#17
REVIEW
R Dineen, P M Stewart, M Sherlock
Acromegaly is a rare, chronic, progressive disease characterized by an excess secretion of growth hormone (GH) and increased circulating insulin-like growth factor 1 (IGF-1) concentrations. It is caused by a pituitary adenoma in the vast majority of cases. The clinical diagnosis, based on symptoms related to GH excess, is often delayed due to the insidious nature of the disease. Consequently, patients often have established systemic complications at diagnosis with increased morbidity and premature mortality...
February 12, 2016: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/26860936/clinical-impact-of-the-current-who-classification-of-pituitary-adenomas
#18
REVIEW
W Saeger, J Honegger, M Theodoropoulou, U J Knappe, C Schöfl, S Petersenn, R Buslei
WHO classifications should be used for comparing the results from different groups of pathologist and clinicians by standardized histopathological methods. Our present report describes the important parameters of pituitary adenoma pathology as demand of the WHO classification for correlation to endocrine data and prognosis. The combination of HE stain based structures with immunostainings for pituitary hormones allows subclassification of adenomas as the best method not only for correlations to clinical hyperfunctions but also for statements to the sensitivity of drug therapies (somatostatin analogs, dopamine agonists)...
June 2016: Endocrine Pathology
https://www.readbyqxmd.com/read/26722256/expression-of-agr2-in-pituitary-adenomas-and-its-association-with-tumor-aggressiveness
#19
Mamatemin Tohti, Junyang Li, Chiyuan Ma, Wanchun Li, Zhenfeng Lu, Yuebing Hu
The aim of the present study was to study the expression of anterior gradient 2 (AGR2) to determine its clinical significance in pituitary adenoma (PA), and to evaluate the potential effect of AGR2 on the diagnosis, therapy or prognosis of PA. Immunohistochemistry was performed to detect the expression of AGR2 in 117 PA tissue samples. Western blotting was performed to confirm the expression profile of AGR2 in different subtypes of PAs. The data showed that in 117 different histological subtypes of PA, 51.3% exhibited AGR2-positive expression...
November 2015: Oncology Letters
https://www.readbyqxmd.com/read/26664461/current-therapies-and-mortality-in-acromegaly
#20
REVIEW
S Găloiu, C Poiană
UNLABELLED: Acromegaly is a rare disease most frequently due to a GH secreting pituitary adenoma. Without an appropriate therapy, life of patients with acromegaly can be shortened with ten years. Pituitary surgery is usually the first line therapy for GH secreting pituitary adenomas. A meta-analysis proved that mortality is much lower in operated patients, even uncured, than the entire group of patients and is similar with the general population in patients with GH<1 μg/ L. For the patients with hypersecreting postoperative remnant tumor, those with low chance of surgical cure or with life-threatening comorbidities, medical therapies are available: somatostatin receptor analogues (SRA), dopamine agonists (DA) and GH receptor antagonists...
October 2015: Journal of Medicine and Life
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