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https://www.readbyqxmd.com/read/29337446/-endocrinopathies-induced-by-immune-checkpoint-inhibitors
#1
Jaafar Jaafar, Maria Mavromati, Jacques Philippe
Immune checkpoint Inhibitors are new immunomodulatory treatments that have proven their anti-tumor efficacy in several advanced cancers. Nevertheless, their use has paved the way for multiple immunological adverse effects that affect many systems and organs including endocrine glands such as the pituitary, thyroid, adrenal and pancreas. Hypophysitis is the most common complication of anti-CTLA-4 monoclonal antibodies, while anti-PD-1 and anti-PD-L1 antibodies cause more thyroid complications. Adrenal insufficiency and type 1 diabetes are relatively less common...
January 10, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29335509/salient-type-1-interleukin-1-receptor-expression-in-peripheral-non-immune-cells
#2
Anping Song, Ling Zhu, Gowthami Gorantla, Olimpia Berdysz, Stephanie A Amici, Mireia Guerau-de-Arellano, Kathryn M Madalena, Jessica K Lerch, Xiaoyu Liu, Ning Quan
Interleukin 1 is a pleiotropic cytokine that mediates diverse functions through its receptor, type I interleukin 1 receptor (IL-1R1). Most previous studies have focused on the expression and function of IL-1R1 in immune cells. Here we performed a comprehensive mapping of IL-1R1 distribution in multiple peripheral tissues using our IL-1R1 reporter (IL-1R1GR/GR) mice. This method yielded the highest sensitivity of in situ detection of IL-1R1 mRNA and protein. Besides validating previously reported IL-1R1 expression in the endocrine tissues including pituitary and pancreas, our results refuted previously reported exclusive IL-1R1 expression in neurons of the spinal cord dorsal horn and dorsal root ganglia (DRG)...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29335487/increased-expression-of-glp-1r-in-proliferating-islets-of-men1-mice-is-detectable-by-68ga-ga-do3a-vs-cys40-exendin-4-pet
#3
Azita Monazzam, Joey Lau, Irina Velikyan, Su-Chen Li, Masoud Razmara, Ulrika Rosenström, Olof Eriksson, Britt Skogseid
Multiple endocrine neoplasia type 1 (MEN1) is an endocrine tumor syndrome caused by heterozygous mutations in the MEN1 tumor suppressor gene. The MEN1 pancreas of the adolescent gene carrier frequently contain diffusely spread pre-neoplasias and microadenomas, progressing to macroscopic and potentially malignant pancreatic neuroendocrine tumors (P-NET), which represents the major death cause in MEN1. The unveiling of the molecular mechanism of P-NET which is not currently understood fully to allow the optimization of diagnostics and treatment...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29333278/clinical-influence-of-exercise-therapy-on-sarcopenia-in-patients-with-chronic-pancreatitis-a-study-protocol-for-a-randomised-controlled-trial
#4
Kazunori Yoh, Hiroki Nishikawa, Hirayuki Enomoto, Yoshinori Iwata, Akio Ishii, Yukihisa Yuri, Noriko Ishii, Yuho Miyamoto, Kunihiro Hasegawa, Chikage Nakano, Ryo Takata, Takashi Nishimura, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Hiroko Iijima, Shuhei Nishiguchi
Introduction and purpose: Chronic pancreatitis (CP) involves progressive inflammatory changes to the pancreas and can lead to permanent structural damage and impairment of both endocrine and exocrine functions. Current reports highlight a rise in the incidence and prevalence of CP. However, there is limited data currently available concerning patients with CP undergoing exercise therapy (ET). We aim to prospectively examine the influence of ET on sarcopenia in patients with CP. Methods and analysis: A detailed evaluation of the nutritional condition and the daily physical activities of each participant will be conducted prior to entering the study...
2018: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/29330353/afadin-and-rhoa-control-pancreatic-endocrine-mass-via-lumen-morphogenesis
#5
D Berfin Azizoglu, Caitlin Braitsch, Denise K Marciano, Ondine Cleaver
Proper lumen morphogenesis during pancreas development is critical to endocrine and exocrine cell fate. Recent studies showed that a central network of lumens (termed core), but not the surrounding terminal branches (termed periphery), produces most islet endocrine cells. To date, it remains unclear how pancreatic lumens form and remodel and which aspects of lumen morphogenesis influence cell fate. Importantly, models testing the function of the central lumen network as an endocrine niche are lacking. Here, we identify mechanisms underlying lumen formation and remodeling and show that central lumen network morphogenesis impacts pancreatic endocrine mass...
January 12, 2018: Genes & Development
https://www.readbyqxmd.com/read/29330195/dicer1-gene-mutations-in-endocrine-tumors
#6
Michael Solarski, Fabio Rotondo, William Foulkes, John R Priest, Luis V Syro, Henriett Butz, Michael Cusimano, Kalman Kovacs
In this review, the importance of the DICER1 gene in the function of endocrine cells is discussed. There is conclusive evidence that DICER1 mutations play a crucial role in the development, progression, cell proliferation, therapeutic responsiveness and behavior of several endocrine tumors. We review the literature of DICER1 gene mutations in thyroid, parathyroid, pituitary, pineal gland, endocrine pancreas, paragangliomas, medullary, adrenocortical, ovarian, and testicular tumors. Although significant progress has been made during the last few years, much more work is needed to fully understand the significance of DICER1 mutations...
January 12, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29329912/identification-and-fate-mapping-of-the-pancreatic-mesenchyme
#7
Jesse Angelo, Kimberly D Tremblay
The murine pancreas buds from the ventral embryonic endoderm at approximately 8.75 dpc and a second pancreas bud emerges from the dorsal endoderm by 9.0 dpc. Although it is clear that secreted signals from adjacent mesoderm-derived sources are required for both the appropriate emergence and further refinement of the pancreatic endoderm, neither the exact signals nor the requisite tissue sources have been defined in mammalian systems. Herein we use DiI fate mapping of cultured murine embryos to identify the embryonic sources of both the early inductive and later condensed pancreatic mesenchyme...
January 9, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29329320/atypical-e2f-functions-are-critical-for-pancreas-polyploidization
#8
Ramadhan B Matondo, Eva Moreno, Mathilda J M Toussaint, Peter C J Tooten, Saskia C van Essen, Elsbeth A van Liere, Sameh A Youssef, Laura Bongiovanni, Alain de Bruin
The presence of polyploid cells in the endocrine and exocrine pancreas has been reported for four decades. In rodents, pancreatic polyploidization is initiated after weaning and the number of polyploid cells increases with age. Surprisingly the molecular regulators and biological functions of polyploidization in the pancreas are still unknown. We discovered that atypical E2f activity is essential for polyploidization in the pancreas, using an inducible Cre/LoxP approach in new-born mice to delete ubiquitously the atypical E2f transcription factors, E2f7 and E2f8...
2018: PloS One
https://www.readbyqxmd.com/read/29324681/ppoma-review-epidemiology-aetiopathogenesis-prognosis-and-treatment
#9
REVIEW
Thais Ligiero Braga, Ralph Santos-Oliveira
Generally, pancreatic polypeptide-secreting tumor of the distal pancreas (PPoma) is classified as a rare tumor, and may occur sporadically or be associated in families or with multiple endocrine neoplasia type 1 (NEM 1). It grows slowly, reaching large dimensions at the time of diagnosis and the symptomatology is fundamentally due to the mass effect, causing either non-specific abdominal pain or symptoms suggestive of obstruction of the pancreatic or biliary duct. Therefore, when detected, they are usually malignant, with metastases mainly in the liver...
January 11, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/29319366/effects-of-subchronic-acrylamide-treatment-on-the-endocrine-pancreas-of-juvenile-male-wistar-rats
#10
M Stošić, M Matavulj, J Marković
Acrylamide (AA) is a well-known industrial monomer with carcinogenic, mutagenic, neurotoxic and endocrine disruptive effects on living organisms. AA has been the subject of renewed interest owing to its presence in various food products. We investigated the potential adverse effects of oral AA treatment on the endocrine pancreas of juvenile rats using histochemical, immunohistochemical, stereological and biochemical methods. Thirty juvenile male Wistar rats were divided into one control and two AA treatment groups: one treated with 25 mg/kg AA and the other treated with 50 mg/kg AA for 21 days...
January 10, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29315753/localization-of-amylin-like-immunoreactivity-in-the-striped-velvet-gecko-pancreas
#11
H Suzuki, T Yamamoto
Immunohistochemical techniques were employed to investigate the distribution of amylin-like immunoreactive cells in the pancreas of gecko Homopholis fasciata. Four types of endocrine cells were distinguished: insulin immunoreactive (B cells), pancreatic polypeptide immunoreactive (PP cells), glucagon and pancreatic polypeptide immunoreactive (A/PP cells) and somatostatin immunoreactive cells (D cells). Pancreatic islets contained B, A/PP and D cells, whereas extrainsular regions contained B, D and PP cells...
January 8, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29310810/radiological-features-and-metastatic-patterns-of-thymic-neuroendocrine-tumours
#12
T Araki, L M Sholl, H Hatabu, M Nishino
AIM: To investigate the clinical and image features of thymic neuroendocrine tumours (NETs), and characterise the radiological patterns of recurrence and metastasis on serial imaging studies. MATERIALS AND METHODS: The study included 14 patients (11 males) with a histopathological diagnosis of thymic NETs (one typical carcinoid, eight atypical carcinoid, and five large cell neuroendocrine carcinoma). Preoperative images were assessed for features of primary tumours...
January 5, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29302507/blunt-trauma-pancreas-in-children-is-non-operative-management-appropriate-for-all-grades
#13
Ravi Kumar Garg, Jai Kumar Mahajan
Purpose: Blunt trauma of pancreas in children is uncommon and its management varies from observational to early operative intervention. We analysed the feasibility and outcome of non-operative management in all grades of paediatric pancreatic injuries. Methods: A total of 15 patients of pancreatic trauma seen in a Paediatric Surgery Unit were retrospectively analyzed. Results: Age of the patients ranged from 3-11 years (mean, 7.7 years). The mode of injury was local trauma in 9 children...
December 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/29299757/benign-tumors-of-the-pancreas-radical-surgery-versus-parenchyma-sparing-local-resection-the-challenge-facing-surgeons
#14
EDITORIAL
Hans G Beger
Pancreaticoduodenectomy and left-sided pancreatectomy are the surgical treatment standards for tumors of the pancreas. Surgeons, who are requested to treat patients with benign tumors, using standard oncological resections, face the challenge of sacrificing pancreatic and extra-pancreatic tissue. Tumor enucleation, pancreatic middle segment resection and local, duodenum-preserving pancreatic head resections are surgical procedures increasingly used as alternative treatment modalities compared to classical pancreatic resections...
January 3, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29289464/kinetics-of-pancreatic-tissue-proliferation-in-a-polymeric-platform-in-mice
#15
Luciana Xavier Pereira, Celso Tarso Rodrigues Viana, Laura Alejandra Ariza Orellano, Simone Aparecida de Almeida, Marcela Guimarães Takahashi de Lazari, Letícia Chinait Couto, Anilton Cesar Vasconcelos, Silvia Passos Andrade, Paula Peixoto Campos
BACKGROUND/OBJECTIVES: Pancreas regenerative capacity after injury is not always sufficient to comply with the body's requirement of digestive enzymes and hormones. We present an alternative system to induce pancreas parenchyma proliferation (exocrine and endocrine components), rather than regeneration or remodeling in normoglycemic mice. METHODS: Porous discs of polyether-polyurethane were surgically placed adjacent to the native pancreas and removed at days 15, 30 and 45 after implantation...
December 21, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29288549/transplantation-of-macro-encapsulated-human-islets-within-the-bioartificial-pancreas-%C3%AE-air-to-patients-with-type-1-diabetes-mellitus
#16
Per-Ola Carlsson, Daniel Espes, Amir Sedigh, Avi Rotem, Baruch Zimermann, Helena Grinberg, Tali Goldman, Uriel Barkai, Yuval Avni, Gunilla T Westermark, Lina Carlbom, Håkan Ahlström, Olof Eriksson, Johan Olerud, Olle Korsgren
Macroencapsulation devices provide the dual possibility to immunoprotect transplanted cells while also being retrievable; the latter bearing importance for safety in future trials with stem-cell derived cells. However, macroencapsulation entails a problem with oxygen supply to the encapsulated cells. The βAir device solves this with an incorporated refillable oxygen tank. This phase 1 study evaluated the safety and efficacy of implanting the βAir device containing allogeneic human pancreatic islets to patients with type 1 diabetes...
December 29, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29285988/characterization-and-differentiation-of-sorted-human-fetal-pancreatic-aldhhi-and-aldhhi-cd133-cells-towards-insulin-expressing-cells
#17
Amanda Oakie, Jinming Li, George F Fellows, David A Hess, Rennian Wang
The enzyme aldehyde dehydrogenase (ALDH) is found in developing and multipotent cell populations, and is important for the production and regulation of retinoic acid controlling β-cell differentiation in the pancreas. The role of ALDH-expressing cells in the formation of endocrine-like cells and co-localization with the putative stem cell marker CD133 has not been examined during human pancreatic development. This study focuses on the co-expression of CD133 on ALDH+ cells from the human fetal pancreas (18-22 weeks of fetal age) with transcription factors (TFs) central to endocrine cell development...
December 29, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29283239/diabetes-from-the-origins-of-the-problem-to-the-nobel-prize-bioethics
#18
R A Kopaladze
Analysis of scientific works from the creation of an experimental model of diabetes before discovery insulin was done. Emphasized is the priority of the Russian pathologist L. W. Sobolew (1876-1919) in the discovery of the endocrine function of the pancreas in experimental animals - rabbits, dogs, cats. In 1923 Canadian scientists Banting and Macleod were awarded the Nobel prize for the discovery of insulin. However, the methods and the idea of Nobel laureates were the same that had been developed 20 years earlier by the Russian scientists...
January 2017: Uspekhi Fiziologicheskikh Nauk
https://www.readbyqxmd.com/read/29282381/a-silent-asymptomatic-solid-pancreas-tumor-in-a-nonsmoking-athletic-female-pancreatic-ductal-adenocarcinoma
#19
Kyawzaw Lin, Aung Naing Lin, Sithu Lin, Thinzar Lin, Ying Xian Liu, Madhavi Reddy
A silent solid endocrine tumor of pancreas, intraductal adenocarcinoma of pancreas, is the fourth leading cancer-related death in the US. However, it is expected to become the third leading cause by 2030 owing to delayed diagnosis and slow progress in management. Chronic pancreatitis is at risk for pancreatic ductal adenocarcinoma (PDAC). PDAC is diagnostic with transabdominal sonogram, blood test such as carbohydrate antigen 19-9 (CA 19-9), and imaging. PDAC has a dismal prognosis. The survival rate in 5 years is barely 6%, while late detection rate is 80-85% with unresectable stage upon diagnosis...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29281757/short-term-outcomes-and-risk-factors-for-pancreatic-fistula-after-pancreatic-enucleation-a-single-center-experience-of-142-patients
#20
Xing Wang, Chun-Lu Tan, Hao Zhang, Yong-Hua Chen, Min Yang, Neng-Wen Ke, Xu-Bao Liu
BACKGROUND: Enucleation is increasingly used for benign or low-grade pancreatic neoplasms. Enucleation preserves the pancreatic parenchyma as well as decreases the risk of long-term endocrine and exocrine dysfunction, but may be associated with a higher rate of postoperative pancreatic fistula (POPF). The aim of this study was to assess short-term outcomes, in particular, POPF. METHODS: Data were collected retrospectively from all 142 patients who underwent pancreatic enucleation between 2009 and 2014 in our institution were analyzed...
December 27, 2017: Journal of Surgical Oncology
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