keyword
MENU ▼
Read by QxMD icon Read
search

Pancreatic neuroendocrine

keyword
https://www.readbyqxmd.com/read/27906711/polycystic-ovary-syndrome-in-adolescent-girls
#1
Natalie Hecht Baldauff, Selma Feldman Witchel
PURPOSE OF REVIEW: Polycystic ovary syndrome (PCOS) is a common heterogeneous disorder that appears to have its origins during the peripubertal years. The diagnostic conundrum is that the typical clinical features, irregular menses and acne, occur during normal female puberty. Understanding the physiologic origins and molecular basis of the dysregulated hypothalamic-pituitary-gonadal axis in PCOS is fundamental to interrupting the distinctive vicious cycle of hyperandrogenism and chronic anovulation...
November 30, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27900001/expression-of-glucose-transporter-1-is-correlated-with-hypoxia-inducible-factor-1%C3%AE-and-malignant-potential-in-pancreatic-neuroendocrine-tumors
#2
Minoru Fujino, Shinichi Aishima, Koji Shindo, Yasunori Oda, Katsuya Morimatsu, Kosuke Tsutsumi, Takao Otsuka, Masao Tanaka, Yoshinao Oda
The present study aimed to investigate the prognostic usefulness of the expression of glucose transporter type 1 (GLUT-1) and GLUT-2, hypoxia-inducible factor 1α (HIF-1α) and insulin-like growth factor II messenger RNA-binding protein 3 (IMP3) in pancreatic neuroendocrine tumors (pNETs). Immunohistochemical staining for GLUT-1, GLUT-2, HIF-1α and IMP3 was performed in 70 pNET specimens. The expression of GLUT-1 and HIF-1α was significantly higher in the World Health Organization grade 2 (G2), neuroendocrine carcinoma cases and mixed-type pNETs compared with the G1 cases...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27896509/shape-and-enhancement-characteristics-of-pancreatic-neuroendocrine-tumor-on-preoperative-contrast-enhanced-computed-tomography-may-be-prognostic-indicators
#3
Hirohisa Okabe, Daisuke Hashimoto, Akira Chikamoto, Morikatsu Yoshida, Katsunobu Taki, Kota Arima, Katsunori Imai, Yoshitaka Tamura, Osamu Ikeda, Takatoshi Ishiko, Hideaki Uchiyama, Toru Ikegami, Norifumi Harimoto, Shinji Itoh, Yo-Ichi Yamashita, Tomoharu Yoshizumi, Toru Beppu, Yasuyuki Yamashita, Hideo Baba, Yoshihiko Maehara
BACKGROUND: Prognostic indicators of the malignant potential of pancreatic neuroendocrine tumors (PNET) are limited. We assessed tumor shape and enhancement pattern on contrast-enhanced computed tomography as predictors of malignant potential. METHODS: Sixty cases of PNET patients undergoing curative surgery from 2001 to 2014 were enrolled onto our retrospective study. Preoperative enhanced CTs were assessed, and criteria defined for regularly shaped and enhancing tumors (group 1), and irregularly shaped and/or enhancing tumors (group 2)...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27894759/pancreaticoduodenectomy-for-pediatric-and-adolescent-pancreatic-malignancy-a-single-center-retrospective-analysis
#4
Erika B Lindholm, Abdulaziz K Alkattan, Sara J Abramson, Anita P Price, Todd E Heaton, Vinod P Balachandran, Michael P La Quaglia
PURPOSE: While pancreaticoduodenectomy (PD) has been extensively studied in adults, there are few data pertaining specifically to pediatric patients. We retrospectively analyzed PD-associated morbidity and mortality in pediatric patients. METHODS: Our analytic cohort included all consecutive patients ≤18years of age treated at our institution from 1993 to 2015 who underwent PD. Patient data (demographics, disease characteristics, surgical and adjuvant treatment, length of hospital stay, and postoperative course) were extracted from the medical records...
November 16, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27894508/intrapancreatic-accessory-spleen-ipas-a-single-institution-experience-and-review-of-the-literature
#5
Neal Bhutiani, Michael E Egger, Catherine A Doughtie, Elizabeth S Burkardt, Charles R Scoggins, Robert C G Martin, Kelly M McMasters
INTRODUCTION: Accessory spleens located within the pancreatic parenchyma (intrapancreatic accessory spleen, IPAS) pose a unique clinical challenge. In many cases, despite imaging and other diagnostic studies, malignancy cannot be excluded and patients are subjected to pancreatic resection. We review our experience with the presentation, diagnosis, and treatment of patients with IPAS to provide insight into improving pre-operative evaluation of these patients METHODS: A retrospective chart review identified seven patients who underwent surgical resection of an intrapancreatic spleen at University of Louisville Hospital between 2004 and 2015...
November 23, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27893328/what-s-in-a-name-steady-progress-in-staging-pancreatic-neuroendocrine-tumors
#6
Daniel M Halperin, James C Yao, Arvind Dasari
No abstract text is available yet for this article.
November 28, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27891681/incomplete-re-expression-of-neuroendocrine-progenitor-stem-cell-markers-is-a-key-feature-of-%C3%AE-cell-dedifferentiation
#7
Abraham Neelankal John, Grant Morahan, Fang-Xu Jiang
There is increasing evidence to suggest that type 2 diabetes mellitus (T2D), a pandemic metabolic disease, may be caused by β-cell dedifferentiation (βCD). However, there is currently no universal definition of βCD, and the underlying mechanism is poorly understood. We hypothesise that a high-glucose in-vitro environment mimics hyperglycaemia in vivo and that β cells grown in this milieu over a long period will undergo dedifferentiation. Herein, we report that the pancreatic β cell line MIN6 grown under a high-glucose condition did not undergo massive cell death but exhibited a glucose-stimulated insulin-secreting profile similar to that of immature β cells...
November 28, 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/27890421/contrast-enhanced-mdct-in-patients-with-pancreatic-neuroendocrine-tumours-correlation-with-histological-findings-and-diagnostic-performance-in-differentiation-between-tumour-grades
#8
E Belousova, G Karmazanovsky, A Kriger, D Kalinin, L Mannelli, A Glotov, N Karelskaya, O Paklina, A Kaldarov
AIM: To identify the multidetector computed tomography (MDCT) features of pancreatic neuroendocrine tumours (pNETs), which correlate with tumour histology and enable preoperative grading. MATERIALS AND METHODS: Thirty-nine patients with histologically confirmed pNET who underwent preoperative contrast-enhanced MDCT were included in this study. Nineteen tumours were classified as Grade 1 (G1) and 20 as Grade 2 (G2). Histopathology slides were reviewed to assess the intratumoural microvascular density (MVD) and the amount of tumour stroma...
November 24, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27876341/imaging-of-neuroendocrine-tumors-of-the-pancreas
#9
C Dromain, D Déandréis, J-Y Scoazec, D Goere, M Ducreux, E Baudin, L Tselikas
Pancreatic neuroendocrine tumors (PNETs) are rare and represent a heterogeneous disease. PNET can be functioning or non-functioning with different clinical presentations and different prognosis based on WHO and pTNM classifications. The role of imaging includes the localization of small functioning tumor, differentiation of these tumors from adenocarcinoma, identification of signs of malignancy and evaluation of extent. PNETs have a broad spectrum of appearance. On CT and MRI, most of functioning PNETs are well defined small tumors with intense and homogeneous enhancement on arterial and portal phases...
December 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/27875639/long-term-follow-up-of-small-pancreatic-cystic-lesions-in-liver-transplant-recipients
#10
Sirachat Vidhyarkorn, Surachate Siripongsakun, Jennifer Yu, James Sayre, Vatche M Agopian, Francisco Durazo, David S Lu
BACKGROUND: Incidental small pancreatic cystic lesions (PCLs) are often found on pre-operative imaging in patients undergoing orthotropic liver transplantation (OLT).While these are considered benign or of low malignant potential, the influence of immunosuppression after OLT may be of concern. The aim of this study was to observe the long term outcome of these small pancreatic cystic lesions (PCLs) in post OLT patients. METHODS: An institutional OLT database of 1,778 consecutive OLT patients from January 2000 to December 2010 was analyzed...
November 22, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27875519/expression-of-somatostatin-receptors-2-and-5-in-circulating-tumour-cells-from-patients-with-neuroendocrine-tumours
#11
Alexa Childs, Clare Vesely, Leah Ensell, Helen Lowe, Tu Vinh Luong, Martyn E Caplin, Christos Toumpanakis, Christina Thirlwell, John A Hartley, Tim Meyer
BACKGROUND: Neuroendocrine tumours (NET) overexpress somatostatin receptors (SSTR) that can be targeted for therapy. Somatostatin receptor expression is routinely measured by molecular imaging but the resolution is insufficient to define heterogeneity. We hypothesised that SSTR expression could be measured on circulating tumour cells (CTCs) and used to investigate heterogeneity of expression and track changes during therapy. METHODS: MCF-7 cells were transfected with SSTR2 or 5 and spiked into donor blood for analysis by CellSearch...
November 22, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27873108/flushing-in-neuro-endocrinology
#12
REVIEW
Fady Hannah-Shmouni, Constantine A Stratakis, Christian A Koch
Cutaneous flushing is a common presenting complaint in endocrine disorders. The pathophysiology of flushing involves changes in cutaneous blood flow triggered by multiple intrinsic factors that are either related to physiology or disease. Flushing can be divided into episodic or persistent causes. Episodic flushing is mediated by the release of endogenous vasoactive mediators or medications, while persistent flushing results in a fixed facial erythema with telangiectasia and cyanosis due to slow-flowing deoxygenated blood in large cutaneous blood vessels...
November 21, 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27865287/surgical-management-of-pancreatic-neuroendocrine-tumors
#13
REVIEW
Jason B Liu, Marshall S Baker
Pancreatic neuroendocrine tumors (PNETs) are a rare, heterogeneous group of neoplasms infamous for their endocrinopathies. Up to 90% of PNETs, however, are nonfunctional and are frequently detected incidentally on axial imaging during the evaluation of vague abdominal symptoms. Surgery remains the mainstay of therapy for patients diagnosed with both functional and nonfunctional PNETs. However, the multifaceted nature of PNETs challenges treatment decision making. In general, resection is recommended for patients with acceptable perioperative risk and amenable lesions...
December 2016: Surgical Clinics of North America
https://www.readbyqxmd.com/read/27864816/giant-insulinoma-report-of-a-case-and-review-of-published-reports
#14
Kazumitsu Ueda, Tetsuro Taira, Hiroyuki Hakoda, Shoko Nakata, Shinya Okata, Takeshi Nagai, Shigeo Aoki, Hideyuki Mishima, Akihiko Sako, Tsunehiko Maruyama, Minoru Okumura
BACKGROUND: Larger insulinomas are reportedly more likely to be malignant; however, their biological behavior has not been clearly elucidated. We here report the characteristics and treatment of a giant insulinoma with local invasion and lymph node metastasis. We also review published reports concerning the clinical features of giant insulinomas and comparing their grading with that of pancreatic neuroendocrine tumors. CASE PRESENTATION: A 71-year-old man was referred to our hospital for investigation of persistent hypoglycemia...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27864124/cd133-expression-in-well-differentiated-pancreatic-neuroendocrine-tumors-a-potential-predictor-of-progressive-clinical-courses
#15
Yasuhiro Sakai, Seung-Mo Hong, Soyeon An, Joo Young Kim, Denis Corbeil, Jana Karbanová, Kyoko Otani, Kohei Fujikura, Ki-Byung Song, Song Cheol Kim, Masayuki Akita, Yoshihide Nanno, Hirochika Toyama, Takumi Fukumoto, Yonson Ku, Takanori Hirose, Tomoo Itoh, Yoh Zen
The present study aimed to elucidate whether the stemness molecule, CD133, is expressed in well-differentiated pancreatic neuroendocrine tumors (PanNETs; WHO grades 1 and 2) and establish its clinical relevance using two separate cohorts. In the first series (n=178) in which tissue microarrays were available, immunohistochemistry revealed that CD133 was expressed in 14 cases (8%). CD133+ PanNETs had higher TNM stages (P<.01), more frequent lymphovascular invasion (P=.01), and higher recurrence rates (P=...
November 15, 2016: Human Pathology
https://www.readbyqxmd.com/read/27863780/identification-of-primary-tumors-in-patients-presenting-with-metastatic-gastroenteropancreatic-neuroendocrine-tumors
#16
Kendall J Keck, Jessica E Maxwell, Yusuf Menda, Andrew Bellizzi, Joseph Dillon, Thomas M O'Dorisio, James R Howe
BACKGROUND: Patients with gastroenteropancreatic neuroendocrine tumors often present with metastases. Identification of the primary tumor is important for operative management, and therefore we sought to determine our success at identifying primary tumors with diagnostic testing and operative exploration. METHODS: A clinical neuroendocrine tumor database was reviewed to identify patients presenting with metastases and primary tumor in situ. Results of radiologic, endoscopic, and operative procedures were evaluated to determine which correctly identified the primary tumor...
November 15, 2016: Surgery
https://www.readbyqxmd.com/read/27863693/surgical-treatment-of-non-functioning-pancreatic-neuroendocrine-tumours-based-on-three-clinical-scenarios
#17
Juli Busquets, Elena Ramírez-Maldonado, Teresa Serrano, Núria Peláez, Luís Secanella, Sandra Ruiz-Osuna, Emilio Ramos, Laura Lladó, Juan Fabregat
INTRODUCTION: The treatment of patients with non-functioning pancreatic neuroendocrine tumours (NFPNET) is resection in locally pancreatic disease, or with resectable liver metastases. There is controversy about unresectable liver disease. METHODS: We analysed the perioperative data and survival outcome of 63 patients who underwent resection of NFPNET between 1993 and 2012. They were divided into 3 scenarios: A, pancreatic resection (44patients); B, pancreatic and liver resection in synchronous resectable liver metastases (12patients); and C, pancreatic resection in synchronous unresectable liver metastases (6patients)...
November 15, 2016: Cirugía Española
https://www.readbyqxmd.com/read/27863178/fine-needle-aspiration-biopsy-of-pancreatic-neuroendocrine-tumors-correlation-between-ki-67-index-in-cytological-samples-and-clinical-behavior
#18
Cristina Díaz Del Arco, J Miguel Esteban López-Jamar, Luis Ortega Medina, J Ángel Díaz Pérez, Ma Jesús Fernández Aceñero
BACKGROUND: Mitotic count in hematoxylin-eosin stained slides and Ki-67 index allow stratification of patients for prognosis and therapeutic decision making in pancreatic neuroendocrine tumors (PNETs). However, the utility of Ki-67 determination in cytological material and its association to PNET prognosis are under discussion. METHODS: We have retrospectively reviewed all cases of EUS-FNA cytology of pancreatic lesions performed in the Hospital Clínico San Carlos (Madrid) between 2006 and 2016...
November 14, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27861351/small-amounts-of-tissue-preserve-pancreatic-function-long-term-follow-up-study-of-middle-segment-preserving-pancreatectomy
#19
Zipeng Lu, Jie Yin, Jishu Wei, Cuncai Dai, Junli Wu, Wentao Gao, Qing Xu, Hao Dai, Qiang Li, Feng Guo, Jianmin Chen, Chunhua Xi, Pengfei Wu, Kai Zhang, Kuirong Jiang, Yi Miao
Middle-segment preserving pancreatectomy (MPP) is a novel procedure for treating multifocal lesions of the pancreas while preserving pancreatic function. However, long-term pancreatic function after this procedure remains unclear.The aims of this current study are to investigate short- and long-term outcomes, especially long-term pancreatic endocrine function, after MPP.From September 2011 to December 2015, 7 patients underwent MPP in our institution, and 5 cases with long-term outcomes were further analyzed in a retrospective manner...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27861198/digital-subtraction-of-magnetic-resonance-images-improves-detection-and-characterization-of-pancreatic-neuroendocrine-neoplasms
#20
Riccardo De Robertis, Paolo Tinazzi Martini, Sara Cingarlini, Silvia Ortolani, Giovanni Butturini, Paolo Regi, Luca Landoni, Giampaolo Tortora, Paolo Pederzoli, Mirko D'Onofrio
OBJECTIVE: The aim of this study was to evaluate the usefulness of digital image subtraction of contrast-enhanced magnetic resonance (MR) images for detection and characterization of pancreatic neuroendocrine neoplasms (PanNENs). METHODS: Magnetic resonance examinations of 50 histologically verified PanNENs were retrospectively evaluated by 2 radiologists; 50 ductal adenocarcinomas were included as a control group. Late arterial phase images and correspondent subtracted images were analyzed...
November 17, 2016: Journal of Computer Assisted Tomography
keyword
keyword
5478
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"