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https://www.readbyqxmd.com/read/29682030/maximum-surgical-blood-order-schedule-for-elective-neurosurgery-in-a-university-teaching-hospital-in-northern-thailand
#1
Ananchanok Saringcarinkul, Siriwan Chuasuwan
Context: Preoperative blood bank testing should optimize the trade-off between intraoperative transfusion delay and blood wastage. Aims: This study aims to develop a maximal surgical blood order schedule (MSBOS) for elective neurosurgery. Settings and Design: Prospective data in University Teaching Hospital, Northern Thailand. Subjects and Methods: Blood transfusion data were collected on all adult patients satisfying inclusion/exclusion criteria in 2015...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682011/endoscopic-versus-microscopic-pituitary-adenoma-surgery-an-institutional-experience
#2
Hanuman Prasad Prajapati, Shashi Kant Jain, Virendra D Sinha
Aim: The aim of this study was to compare the efficacy of endoscopic versus microscopic excision of pituitary adenoma, and to evaluate the merits and demerits of each approach. Materials and Methods: Prospective data were collected and patients were surgically treated for pituitary adenoma at SMS Hospital, Jaipur, Rajasthan, India. Patients consent was obtained. Age, sex, presenting symptoms, length of hospital stay, pre- and post-operative hormone status, extent of resections of tumors, and intra- and post-operative complication were noted...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29680903/the-expression-profile-of-pd-l1-and-cd8-lymphocyte-in-pituitary-adenomas-indicating-for-immunotherapy
#3
Peng-Fei Wang, Ting-Jian Wang, Ya-Kun Yang, Kun Yao, Zhuo Li, Yan Michael Li, Chang-Xiang Yan
BACKGROUND: Pituitary adenomas (PAs) are the second most common brain tumors, and mostly are benign tumors. However, there exists subtypes of PAs refractory to common treatments, and need novel therapy. Programmed death 1 (PD-1) blockade has shown durable objective response in a variety of malignancies, and the key predictive markers for this immunotherapy were PD-L1 and CD8+ tumor-infiltrating lymphocyte (TILs) expression. To evaluate the potential immunotherapy for PAs, we investigated the expression of these two immune markers in PAs...
April 21, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29680871/cystic-tumors-of-the-pituitary-infundibulum-seminal-autopsy-specimens-1899-to-1904-that-allowed-clinical-pathological-craniopharyngioma-characterization
#4
José M Pascual, Ruth Prieto, Maria Rosdolsky, Sewan Strauss, Inés Castro-Dufourny, Verena Hofecker, Eduard Winter, Rodrigo Carrasco, Walter Ulrich
A heterogeneous group of epithelial cystic tumors developed at the infundibulum and the third ventricle disconcerted pathologists at the dawn of the twentieth century. Very little was known at that time about the physiological role played by the pituitary gland, and there was almost complete ignorance regarding the function of the hypothalamus. Acromegaly, or enlargement of acral body parts, described in 1886 by Pierre Marie, was the only disease linked to primary hypertrophies of the pituitary gland, known as "pituitary strumas"...
April 21, 2018: Pituitary
https://www.readbyqxmd.com/read/29678704/clinical-parameters-to-distinguish-silent-corticotroph-adenomas-from-other-nonfunctioning-pituitary-adenomas
#5
Daham Kim, Cheol Ryong Ku, Se Hee Park, Ju Hyung Moon, Eui Hyun Kim, Sun Ho Kim, Eun Jig Lee
BACKGROUND: It is difficult to distinguish silent corticotroph adenomas (SCAs) from other nonfunctioning pituitary adenomas (NFPAs) preoperatively. This study aimed to determine the preoperative clinical parameters associated with SCAs. METHODS: This was a retrospective single-center study of patients who underwent surgery for NFPAs during 2011-2016 in our tertiary hospital and who had preoperative combined pituitary function test (CPFT) and immunohistochemical staining results available...
April 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29678528/endocrine-remission-after-pituitary-stereotactic-radiosurgery-differences-in-rates-of-response-for-matched-cohorts-of-cushing-disease-and-acromegaly-patients
#6
Daniel M Trifiletti, Zhiyuan Xu, Sunil W Dutta, Alfredo Quiñones-Hinojosa, Jennifer Peterson, Mary Lee Vance, Jason P Sheehan
PURPOSE: To compare and describe the time to endocrine remission and new hypopituitarism among patients with growth hormone (GH) and adrenocorticotropic hormone (ACTH)-secreting pituitary adenomas after radiosurgery, controlling for several known prognostic factors. METHODS AND MATERIALS: An institutional review board-approved, institutional retrospective analysis of patients with GH- and ACTH-secreting pituitary adenomas was performed, with matching for patient sex, age at radiosurgery, interval between the last resection and radiosurgery, use of previous radiation therapy, whole sella treatment, suprasellar extension, cavernous sinus invasion, and margin dose...
February 20, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29678524/hypopituitarism-after-single-fraction-pituitary-adenoma-radiosurgery-dosimetric-analysis-based-on-patients-treated-using-contemporary-techniques
#7
Christopher S Graffeo, Michael J Link, Paul D Brown, William F Young, Bruce E Pollock
PURPOSE: To analyze factors associated with post-stereotactic radiosurgery (SRS) hypopituitarism among radiation-naïve patients with pituitary adenomas who underwent single-fraction SRS between 2007 and 2014. METHODS AND MATERIALS: This was a retrospective review of 97 patients having single-fraction SRS from 2007 until 2014. Eligible patients had no history of prior radiation, normal age- and sex-specific pituitary function before SRS, and at least 24 months of endocrine follow-up...
March 8, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29678284/aberrant-g-protein-coupled-hormone-receptor-in-adrenal-diseases
#8
REVIEW
Matthieu St-Jean, Nada El Ghorayeb, Isabelle Bourdeau, André Lacroix
The regulation of cortisol or aldosterone production when ACTH of pituitary origin or the renin-angiotensin systems are suppressed in primary adrenal Cushing's syndrome or in primary aldosteronism is exerted by diverse genetic and molecular mechanisms. In addition to recently identified mutations in various genes implicated in the cyclic AMP or ion channel pathways, steroidogenesis is not really autonomous as it is frequently regulated by the aberrant adrenocortical expression of diverse hormone receptors, particularly G-protein coupled hormone receptors (GPCR) which can substitute for the normal function of ACTH or angiotensin-II...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678281/an-orphan-g-protein-coupled-receptor-causes-human-gigantism-and-or-acromegaly-molecular-biology-and-clinical-correlations
#9
REVIEW
Giampaolo Trivellin, Laura C Hernández-Ramírez, Jeremy Swan, Constantine A Stratakis
X-linked acrogigantism (X-LAG) is a recently described form of familial or sporadic pituitary gigantism characterized by very early onset GH and IGF-1 excess, accelerated growth velocity, gigantism and/or acromegaloid features. Germline or somatic microduplications of the Xq26.3 chromosomal region, invariably involving the GPR101 gene, constitute the genetic defect leading to X-LAG. GPR101 encodes a class A G protein-coupled receptor that activates the 3',5'-cyclic adenosine monophosphate signaling pathway...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29675363/clinical-and-imaging-features-of-pituitary-apoplexy-and-role-of-imaging-in-differentiation-of-clinical-mimics
#10
REVIEW
Pradeep Goyal, Michael Utz, Nishant Gupta, Yogesh Kumar, Manisha Mangla, Sonali Gupta, Rajiv Mangla
To discuss the clinical syndrome, review common imaging findings of pituitary apoplexy (PA) and role of imaging in therapy and follow-up. Also, to review other acute clinical scenarios with similar clinical and/or imaging findings as PA. PA is a severe and potentially life-threatening medical emergency, characterized by constellation of symptoms/signs that occur as a result of acute hemorrhage and/or infarction in pituitary gland. Patients present with acute and sudden onset of symptoms/signs, most commonly with severe headache, vision deficits/ophthalmoplegia, altered mental status, and possible pan hypopituitarism...
March 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29668981/wnts-role-in-bovine-folliculogenesis-and-estrogen-production
#11
B I Gomez, B H Aloqaily, C A Gifford, D M Hallford, J A Hernandez Gifford
Appreciation of mechanisms that affect steroidogenesis is critical to identifying compromising signals that may decrease reproductive efficiency. Follicle maturation and steroidogenesis requires coordinated actions from the pituitary gonadotropins, and local ovarian signaling molecules. Beta-catenin (CTNNB1), the lynchpin molecule of canonical wingless-type mouse mammary tumor virus integration site (WNT) signaling is required for maximal gonadotropin stimulation of steroid production from granulosa (GC) and luteal cells...
April 13, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29666968/a-feast-of-reviews-about-brain-and-pituitary-tumor-pathology
#12
EDITORIAL
David N Louis
No abstract text is available yet for this article.
April 17, 2018: Brain Tumor Pathology
https://www.readbyqxmd.com/read/29665752/histopathologic-findings-in-canine-pituitary-glands
#13
Margaret A Miller, David S Bruyette, J Catharine Scott-Moncrieff, Tina Jo Owen, José A Ramos-Vara, Hsin-Yi Weng, Andrea L Vanderpool, Annie V Chen, Linda G Martin, Deidre M DuSold, Sina Jahan
To optimize the histologic evaluation of hypophysectomy specimens, sections of 207 canine pituitary glands (196 postmortem, 11 hypophysectomy specimens) were reviewed. Adenohypophyseal proliferation was the most common (n = 79) lesion. Proliferative lesions were sparsely to densely granulated; the granules were usually basophilic to chromophobic and periodic acid-Schiff-positive. Adenohypophyseal proliferation was classified as hyperplasia (n = 40) if ≤2 mm diameter with intact reticulin network, as microadenoma (n = 22) for 1-5 mm homogeneous nodules with lost reticulin network, or as macroadenoma (n = 17) for larger tumors...
January 1, 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29664314/iran-pituitary-tumor-registry-description-of-the-program-and-initial-results
#14
Mohammad Ebrahim Khamseh, Mohammad Reza Mohajeri Tehrani, Zohreh Mousavi, Mojtaba Malek, Mehrnaz Imani, Nasim Hoshangian Tehrani, Mohammad Ghorbani, Hamideh Akbari, Farzaneh Sarvghadi, Atieh Amouzegar, Fatemeh Esfahanian, Nahid Hashemi Madani, Zahra Emami
BACKGROUND: This study was designed to present initial results on clinical presentation, therapeutic modalities, and outcome information of patients with pituitary tumors registered in Iran Pituitary Tumor Registry (IPTR). METHODS: We collected data from a web-based electronic medical records of patients with various pituitary tumors referred to four tertiary care centers in the country. Retrospective analysis was performed on demographic, clinical, and therapeutic information of 298 patients including 51 clinically nonfunctioning adenoma (CNFA), 85 acromegaly, 135 prolactinoma, and 27 Cushing's disease (CD)...
December 31, 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29659365/-association-between-diabetic-ketoacidosis-and-acromegaly
#15
Paloma Ocampo, Juan Manuel Duarte, Ricardo Barcia, Cecilia Arévalo
Diabetes mellitus occurs in nearly 10% of patients with acromegaly and is secondary to insulin resistance caused by high levels of growth hormone. Diabetes ketoacidosis has been described as a rare complication of acromegaly, resulting from a relative insulin deficiency caused by growth hormone excess. We described the case of a 38 year-old man who presented to the emergency room with a 6-week history of polydipsia, polyuria, polyphagia and weight loss. He also had nausea, vomiting and abdominal pain from two days before admission...
2018: Medicina
https://www.readbyqxmd.com/read/29658936/two-dimensional-gel-electrophoresis-coupled-with-mass-spectrometry-methods-for-an-analysis-of-human-pituitary-adenoma-tissue-proteome
#16
Xianquan Zhan, Yuda Huang, Ying Long
Human pituitary adenoma (PA) is a common tumor that occurs in the human pituitary gland in the hypothalamus-pituitary-targeted organ axis systems, and may be classified as either clinically functional or nonfunctional PA (FPA and NFPA). NFPA is difficult for early stage diagnosis and therapy due to barely elevating hormones in the blood compared to FPA. Our long-term goal is to use proteomics methods to discover reliable biomarkers for clarification of PA molecular mechanisms and recognition of effective diagnostic, prognostic markers and therapeutic targets...
April 2, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29652231/endoscopic-endonasal-transoculomotor-triangle-approach-for-adenomas-invading-the-parapeduncular-space-surgical-anatomy-technical-nuances-and-case-series
#17
Cristian Ferrareze Nunes, Stefan Lieber, Huy Q Truong, Georgios Zenonos, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE Pituitary adenomas may extend into the parapeduncular space by invading through the roof of the cavernous sinus. Currently, a transcranial approach is the preferred choice, with or without the combination of an endonasal approach. In this paper the authors present a novel surgical approach that takes advantage of the natural corridor provided by the tumor to further open the oculomotor triangle and resect tumor extension into the parapeduncular space. METHODS Six injected specimens were used to demonstrate in detail the surgical anatomy related to the approach...
April 13, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29649138/response-of-myeloid-leukemia-cells-to-luteolin-is-modulated-by-differentially-expressed-pituitary-tumor-transforming-gene-1-pttg1-oncoprotein
#18
Pei-Yi Chen, Hsin-Jung Tien, Shih-Fen Chen, Chi-Ting Horng, Huei-Lin Tang, Hui-Ling Jung, Ming-Jiuan Wu, Jui-Hung Yen
Luteolin, a flavonoid nutraceutical abundant in vegetables and fruits, exhibits a wide range of bioactive properties, including antioxidant, anti-inflammatory and anti-cancer activities. Pituitary tumor-transforming gene 1 (PTTG1), an oncoprotein that regulates cell proliferation, is highly expressed in several types of cancer cells including leukemia. In this study, we aim to investigate the anti-cancer effects of luteolin on cells with differential PTTG1 expression and their underlying mechanisms in human myeloid leukemia cells...
April 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29627576/magnolol-abrogates-chronic-mild-stress-induced-depressive-like-behaviors-by-inhibiting-neuroinflammation-and-oxidative-stress-in-the-prefrontal-cortex-of-mice
#19
Jie Cheng, Shuqi Dong, Litao Yi, Di Geng, Qing Liu
Magnolol, the main constituent of Magnolia officinalis, has been shown to produce antidepressant-like effect in rodents. Growing evidence shows that neuroinflammation, oxidative stress and neuroendocrine contribute to the pathogenesis of major depression. Here, the aim of this present study was to determine whether magnolol affected these systems in mice exposed to chronic mild stress (CMS). The ameliorative effect of magnolol on depressive-like symptoms was investigated through behavioral tests, including the classical sucrose preference and forced swimming tests...
April 5, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29625497/impact-of-the-canonical-wnt-pathway-activation-on-the-pathogenesis-and-prognosis-of-adamantinomatous-craniopharyngiomas
#20
Carlos Eduardo Barros Jucá, Leandro Machado Colli, Clarissa Silva Martins, Marina Lanciotti Campanini, Beatriz Paixão, Renata Viana Jucá, Fabiano Pinto Saggioro, Ricardo Santos de Oliveira, Ayrton Custódio Moreira, Hélio Rubens Machado, Luciano Neder, Sonir Rauber Antonini, Margaret de Castro
CTNNB1 mutations and abnormal β-catenin distribution are associated with the pathogenesis of adamantinomatous craniopharyngioma (aCP). We evaluated the expression of the canonical Wnt pathway components in aCPs and its association with CTNNB1 mutations and tumor progression. Tumor samples from 14 aCP patients and normal anterior pituitary samples from eight individuals without pituitary disease were studied. Gene expression of Wnt pathway activator ( WNT4 ), inhibitors ( SFRP1 , DKK3 , AXIN1 , and APC ), transcriptional activator ( TCF7 ), target genes ( MYC , WISP2 , and, CDH1 ), and Wnt modulator ( TP53 ) was evaluated by qPCR...
April 6, 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
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