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oncologic metabolic emergencies

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https://www.readbyqxmd.com/read/29705040/theranostics-and-metabolotheranostics-for-precision-medicine-in-oncology
#1
Zaver M Bhujwalla, Samata Kakkad, Zhihang Chen, Jiefu Jin, Sudath Hapuarachchige, Dmitri Artemov, Marie-France Penet
Most diseases, especially cancer, would significantly benefit from precision medicine where treatment is shaped for the individual. The concept of theragnostics or theranostics emerged around 2002 to describe the incorporation of diagnostic assays into the selection of therapy for this purpose. Increasingly, theranostics has been used for strategies that combine noninvasive imaging-based diagnostics with therapy. Within the past decade theranostic imaging has transformed into a rapidly expanding field that is located at the interface of diagnosis and therapy...
April 25, 2018: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29686562/spontaneous-tumor-lysis-syndrome-in-small-cell-lung-cancer
#2
Ryan K Dean, Rogin Subedi, Mijung Lee
Tumor lysis syndrome is a set of metabolic disturbances that can be seen during the destruction of tumor cells and is an oncologic and metabolic emergency. The syndrome is rare in those with solid tumors, and even more rare in those with solid tumors who have not yet received chemotherapy. We present a case of tumor lysis syndrome in a patient with small cell lung cancer.
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29656880/fundamentals-of-functional-imaging-ii-emerging-mr-techniques-and-new-methods-of-analysis
#3
A Luna, T Martín Noguerol, L Alcalá Mata
Current multiparameter MRI protocols integrate structural, physiological, and metabolic information about cancer. Emerging techniques such as arterial spin-labeling (ASL), blood oxygen level dependent (BOLD), MR elastography, chemical exchange saturation transfer (CEST), and hyperpolarization provide new information and will likely be integrated into daily clinical practice in the near future. Furthermore, there is great interest in the study of tumor heterogeneity as a prognostic factor and in relation to resistance to treatment, and this interest is leading to the application of new methods of analysis of multiparametric protocols...
April 12, 2018: Radiología
https://www.readbyqxmd.com/read/29548050/radiomics-metabolic-and-molecular-mri-for-brain-tumors
#4
Philipp Kickingereder, Ovidiu Cristian Andronesi
Magnetic resonance imaging plays a key role in diagnosis and treatment monitoring of brain tumors. Novel imaging techniques that specifically interrogate aspects of underlying tumor biology and biochemical pathways have great potential in neuro-oncology. This review focuses on the emerging role of 2-hydroxyglutarate-targeted magnetic resonance spectroscopy, as well as radiomics and radiogenomics in establishing diagnosis for isocitrate dehydrogenase mutant gliomas, and for monitoring treatment response and predicting prognosis of this group of brain tumor patients...
February 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29513247/acceptance-of-disease-and-the-quality-of-life-in-patients-with-enteric-stoma
#5
Katarzyna Szpilewska, Jan Juzwiszyn, Zofia Bolanowska, Zofia Bolanowska, Magdalena Milan, Mariusz Chabowski, Dariusz Janczak
INTRODUCTION: The main reason of the emergence of enteric stoma is colorectal cancer. Enteric stoma is a serious health, as well as life problem. In Poland, there are about 6,000 stoma surgeries yearly. It changes the functioning of patients, restricts their daily activity and influences their quality of life significantly. Therefore, in the modern treatment process, all spheres of human life and its surroundings are considered. The evaluation of the quality of life and the level of acceptance of the disease enables us to identify the regions in which patients require attention and help, as well as places to which health promotion among patients with a stoma should be directed...
February 28, 2018: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/29459844/magnetic-resonance-spectroscopy-positron-emission-tomography-and-radiogenomics-relevance-to-glioma
#6
REVIEW
Gloria C Chiang, Ilhami Kovanlikaya, Changho Choi, Rohan Ramakrishna, Rajiv Magge, Dikoma C Shungu
Advances in metabolic imaging techniques have allowed for more precise characterization of gliomas, particularly as it relates to tumor recurrence or pseudoprogression. Furthermore, the emerging field of radiogenomics where radiographic features are systemically correlated with molecular markers has the potential to achieve the holy grail of neuro-oncologic neuro-radiology, namely molecular diagnosis without requiring tissue specimens. In this section, we will review the utility of metabolic imaging and discuss the current state of the art related to the radiogenomics of glioblastoma...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29436847/targeting-tumour-hypoxia-shifting-focus-from-oxygen-supply-to-demand
#7
James T Coates, Michael Skwarski, Geoff S Higgins
Tumour hypoxia is a well-recognised barrier to anti-cancer therapy and represents one of the best validated targets in oncology. Previous attempts to tackle hypoxia have focussed primarily on increasing tumour oxygen supply; however, clinical studies using this approach have yielded only modest clinical benefit, with often significant toxicity and practical limitations. Therefore, there are currently no anti-hypoxia treatments in widespread clinical use. As an emerging alternative strategy, we discuss the relevance of inhibiting tumour oxygen metabolism to alleviate hypoxia and highlight recently initiated clinical trials using this approach...
February 19, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29420223/oxidative-phosphorylation-as-an-emerging-target-in-cancer-therapy
#8
REVIEW
Thomas M Ashton, W Gillies McKenna, Leoni A Kunz-Schughart, Geoff S Higgins
Cancer cells have upregulated glycolysis compared with normal cells, which has led many to the assumption that oxidative phosphorylation (OXPHOS) is downregulated in all cancers. However, recent studies have shown that OXPHOS can be also upregulated in certain cancers, including leukemias, lymphomas, pancreatic ductal adenocarcinoma, high OXPHOS subtype melanoma, and endometrial carcinoma, and that this can occur even in the face of active glycolysis. OXPHOS inhibitors could therefore be used to target cancer subtypes in which OXPHOS is upregulated and to alleviate therapeutically adverse tumor hypoxia...
February 2, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29394142/hypermetabolism-and-nutritional-support-in-sepsis
#9
John C Alverdy
BACKGROUND: Surgical metabolism has been a founding field of investigation in surgery without which the boundaries of critical care, trauma, and surgical oncology could not have advanced. Traditionally, understanding the shifts in electrolytes, carbohydrates, fats, and amino acids that could explain the rapidly evolving proteolysis after catabolic stress and tumor growth has been a major focus of research that led to our current approach to maintaining homeostasis over the course of major surgical intervention and injury...
February 2018: Surgical Infections
https://www.readbyqxmd.com/read/29212105/-german-society-of-gastroenterology-digestive-and-metabolic-diseases-dgvs-position-statement-on-endoscopic-decompression-in-acute-ileus
#10
Martin Götz, Georg Braun, Ralf Jakobs, Helmut Messmann, Eduard F Stange, Markus M Lerch
In patients with ileus with dilated intestine in imaging studies, endoscopic decompression appears a feasible option. However, its use is often uncritical and without scientific evidence. Before considering endoscopic intervention, CT-imaging should differentiate between mechanical obstruction and paralytic ileus/intestinal pseudo-obstruction. Tumor diagnosis and localisation are essential because the latter determines the choice of the decompression procedure. Coecal dilatation of more than 12 cm indicates an increased risk of perforation...
December 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/29208883/tumor-lysis-syndrome-and-hyperleukocytosis-in-childhood-acute-lymphoblastic-leukemia-in-a-tertiary-care-hospital
#11
R Tasmeen, A Islam, S T Alam, M Begum
Acute lymphoblastic leukemia is the most common (77%) childhood leukemia and also the most common neoplastic disease in children. Acute lymphoblastic leukemia initially present with hyperleukocytosis (WBC count more than 50,000/mm³) in twenty percent cases. These children are particularly at risk of development of tumor lysis syndrome (TLS). Tumor lysis syndrome is a metabolic disorder consists of hyperuricaemia, hyperkalemia, hyperphosphataemia, hypocalcaemia with or without renal insufficiency. It is the most common disease related emergency encountered by physicians caring for cancer of children and adult...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29166752/immunotherapy-treatment-an-issue-for-metabolic-response
#12
Luca Tagliabue, Antonella Capozza, Claudio Maioli, Andrea Luciani, Anna M Ierardi, Gianpaolo Carrafiello
Since the beginning of second decade of this century, when it was introduced in many oncologic scenarios, immunotherapy has become an important tool in the management of a growing number of cancers. Engaging the host immune system in cancer therapy seems to be useful, improving not only progression free survival but also overall survival, until the achieving the goal that many advanced cancers, previously considered without effective treatment options, have now become successfully treatable. Moreover, considering the relatively recent introduction of these drugs in clinical scenarios and the continuous releasing of new drugs, large validated clinical experiences are lacking and many issues are today debated; by the way, the evaluation of the response to immune-therapy poses major concerns...
November 22, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29159262/tumor-lysis-syndrome-in-a-patient-with-ovarian-yolk-sac-tumor
#13
Katherine VanHise, Alexa Swailes, Michael Roche, Jordan M Newell, Joshua P Kesterson
•Tumor lysis syndrome is an oncologic emergency with profound metabolic derangements.•Germ cell tumors with large disease burden increase the risk for tumor lysis syndrome.•Herein we present a case of tumor lysis syndrome prior to initiation of cytotoxic chemotherapy for ovarian yolk sac tumor.
November 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/29130149/is-lipidomic-the-answer-to-the-search-of-a-biomarker-for-organ-preservation-protocol-in-head-and-neck-squamous-cell-carcinoma
#14
Ana Carolina Laus, Ismael Dale Cotrim Guerreiro da Silva, Fernanda Bertuccez Cordeiro, Edson Guimarães Lo Turco, Luciano de Souza Viana, André Lopes Carvalho
In the last decade organ preservation protocols based on chemoradiotherapy (CRT) has been showing the possibility of preserving function without jeopardizing survival for locally advanced head and neck squamous cell carcinoma (HNSCC). Still, only a percentage of the patients will benefit from this approach and, to date, no biomarkers are known to correctly predict these patients. More recently, modern mass spectrometry method has been used to determine metabolic profiles, and lipidomics, in particular, emerged as a new field of study in oncology and other diseases...
November 13, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29130003/spontaneous-tumor-lysis-syndrome-due-to-uterine-leiomyosarcoma-with-lung-metastases
#15
Vivek Alaigh, Debapriya Datta
Tumor lysis syndrome (TLS) is an oncologic emergency characterized by a combination of metabolic derangements (hyperuricemia, hyperkalemia, hyperphosphatemia, and hypocalcemia) caused by rapid turnover from cell destruction in certain cancers. These metabolic derangements can lead to seizures, cardiac arrhythmias, renal failure, and death. TLS is usually seen after the initiation of chemotherapy for hematologic malignancies. TLS occurring spontaneously, without initiation of chemotherapy, is rare and its occurrence in solid tumors is rarer still...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/29097931/uptake-of-18-f-fet-and-18-f-fch-in-human-glioblastoma-t98g-cell-line-after-irradiation-with-photons-or-carbon-ions
#16
Francesca Pasi, Marco Giovanni Persico, Federica Eleonora Buroni, Carlo Aprile, Marina Hodolic, Franco Corbella, Rosanna Nano, Angelica Facoetti, Lorenzo Lodola
The differential diagnosis between recurrence of gliomas or brain metastases and this phenomenon is important in order to choose the best therapy and predict the prognosis but is still a big problem for physicians. The new emerging MRI, CT, and PET diagnostic modalities still lack sufficient accuracy. Radiolabeled choline and amino acids have been reported to show great tumor specificity. We studied the uptake kinetics of [(18)F]fluoromethyl-choline (FCH) and O-(2-[(18)F]fluoroethyl)-L-tyrosine (FET) by the T98G human glioblastoma cells from 20 to 120 min after irradiation either with photons at 2-10-20 Gy or with carbon ions at 2 Gy (at the National Centre for Oncological Hadrontherapy (CNAO), Pavia, Italy)...
2017: Contrast Media & Molecular Imaging
https://www.readbyqxmd.com/read/29078931/oncologic-metabolic-emergencies
#17
REVIEW
Jonathan Wagner, Sanjay Arora
Cancer and its therapies may lead to several metabolic emergencies that emergency providers (EPs) should be well-versed in identifying and managing. With prompt recognition and treatment initiation in the emergency department, lives can be saved and quality of life maintained. Most oncologic metabolic emergencies occur in advanced cancer states, but some follow initiation of treatment or may be the presenting syndrome that leads to the cancer diagnosis. This article reviews the 2 most emergent oncologic metabolic diagnoses: tumor lysis syndrome and hypercalcemia of malignancy...
December 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/29022502/pathophysiological-role-of-mitochondrial-potassium-channels-and-their-modulation-by-drugs
#18
Valentina Citi, Vincenzo Calderone, Alma Martelli, Maria Cristina Breschi, Lara Testai
Mitochondria play a central role in ATP-generating processes. Indeed, in mammalian tissues, up to 90% of ATP is generated by mitochondria through the process of oxidative phosphorylation; furthermore, mitochondria are involved in multiple signal transduction pathways. A rapidly expanding body of literature has confirmed that mitochondria play a pivotal role in apoptosis, cardio- and neuro-protection, and various neurodegenerative disorders, ranging from Parkinson's to Alzheimer's disease. It is evident that mitochondria are also the targets of multiple drugs; some of these are exactly designed to influence mitochondrial function, while others have primary targets in other cellular locations but may interact with mitochondria because of the presence of numerous targets on this organelle...
October 12, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28939071/intraindividual-homogeneity-of-18-f-fdg-pet-ct-parameters-in-hpv-positive-opscc
#19
Shachi Jenny Sharma, Claus Wittekindt, Jennifer Knuth, Dagmar Steiner, Nora Wuerdemann, Maren Laur, Tobias Kroll, Steffen Wagner, Jens Peter Klussmann
OBJECTIVES: (18)F-FDG PET/CT is widely used in clinical oncology. Human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) represents an emerging disease that differs from HPV-negative OPSCC in clinical behavior and tumour biology. In these tumours, HPV-oncogenes might lead to distinct alterations in metabolic pathways. Therefore, we compared metabolic parameters using (18)F-FDG PET/CT in HPV-positive and HPV-negative OPSCC in relation to histopathological findings...
October 2017: Oral Oncology
https://www.readbyqxmd.com/read/28929002/spontaneous-tumor-lysis-syndrome-in-a-patient-with-a-dedifferentiated-endometrial-adenocarcinoma
#20
Shinichi Harada, Keiki Nagaharu, Youichirou Baba, Tetsuya Murata, Toshiro Mizuno, Keiki Kawakami
Tumor lysis syndrome (TLS) is an oncological emergency caused by massive cytolysis of malignant cells. This syndrome eventually induces metabolic abnormalities. TLS is observed mainly among tumors with rapid cell proliferation or high sensitivity to antineoplastic treatment. In rare cases, TLS occurs without any cytotoxic treatment. Previous reports have shown that alternative stress including proceeding infection or an operation might play a role in TLS. However, exact mechanism of spontaneous TLS remains unknown...
2017: Case Reports in Oncological Medicine
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