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hematological pathology

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https://www.readbyqxmd.com/read/28620674/organ-dysfunction-and-failure-following-brain-death-do-not-preclude-successful-donation
#1
Eno-Obong I Essien, Nehu Parimi, Jennifer Gutwald-Miller, Tyree Nutter, Thomas M Scalea, Deborah M Stein
BACKGROUND: Organ dysfunction is common after neurologic determination of death (NDD) but before organ collection. Reliable markers for graft success following transplant of these organs would be useful. We sought to determine the relationship between the donor after neurologic determination of death (DNDD) pathophysiology and successful organ donation. METHODS: Donor information was obtained through the local organ procurement organization. Donor demographics and clinical data points for cardiovascular, renal, respiratory, hepatic, hematological and neuroendocrine systems were reviewed 12 h before and 12 h after neurologic determination of death was declared...
June 15, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28618960/role-of-patient-tumor-and-systemic-inflammatory-response-related-factors-in-predicting-survival-of-patients-with-node-negative-gastric-cancer
#2
Jinglei Qu, Xiujuan Qu, Zhi Li, Jingdong Zhang, Yuee Teng, Bo Jin, Mingfang Zhao, Ping Yu, Zhenning Wang, Yunpeng Liu
It is currently unclear as to which patients with node-negative gastric cancer can benefit from adjuvant chemotherapy. This study aimed to develop a prognostic model based on patient-, tumor-, and host-related factors to stratify high-risk patients eligible for adjuvant therapy. Correlations of clinicopathological and hematological features with overall survival were analyzed using a Cox model. A score to identify risk classes was derived from hazard ratios in multivariate analysis. In all, 436 patients with node-negative gastric cancer (stage pT1-4aN0M0) were analyzed in this study...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28611935/gastrointestinal-amyloidosis-review-of-the-literature
#3
REVIEW
Kyle Rowe, Jon Pankow, Fredy Nehme, William Salyers
Gastrointestinal amyloidosis (GIA), a protein deposition disorder, represents a complex common pathway that encompasses multiple etiologies and presentations. It represents a significant diagnostic and treatment challenge. The disease results from the deposition of insoluble extracellular protein fragments that have been rendered resistant to digestion. GIA can be acquired or genetic, and most commonly results from chronic inflammatory disorders (AA amyloidosis), hematologic malignancy (AL amyloidosis), and end-stage renal disease (Beta-2 amyloidosis)...
May 8, 2017: Curēus
https://www.readbyqxmd.com/read/28601896/influence-of-tnf-and-il6-gene-polymorphisms-on-the-severity-of-cytopenias-in-argentine-patients-with-myelodysplastic-syndromes
#4
Yesica Bestach, Virginia Palau Nagore, María G Flores, Jacqueline González, Jorge Arbelbide, Nora Watman, Yamila Sieza, Irene Larripa, Carolina Belli
Myelodysplastic syndromes (MDS) represent a heterogeneous group of hematologic disorders characterized by cytopenia(s) and predisposition to leukemic progression. An immune dysregulation and an aberrant bone marrow microenvironment seem to be key elements in the physiopathological process of MDS. In order to evaluate a possible association between susceptibility and clinic-pathologic features, we genotyped 153 MDS patients for functional cytokine polymorphisms: TNF (-308 G/A), IFNG (+874 A/T and +875 CAn), IL6 (-174 G/C), and TGFB1 (+869 C/T and +915 G/C)...
June 10, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28599188/mast-cell-leukemia-mcl-clinico-pathologic-and-molecular-features-and-survival-outcome
#5
Preetesh Jain, Sa Wang, Keyur P Patel, Nawid Sarwari, Jorge Cortes, Hagop Kantarjian, Srdan Verstovsek
Mast cell leukemia (MCL) is a very rare subtype of systemic mastocytosis (SM). We have identified 13 such patients (5.9%) among 218 patients with SM seen at our institution between 1994 and 2016. Patients with MCL had poor survival (median 31.6 months); response to various therapies was rare and not durable. Clinical course may be affected by concurrent associated hematologic neoplasm and different genetic profiles. More research is required to decipher this rare and enigmatic SM subtype.
June 1, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28593741/comparison-of-different-methods-for-telomere-length-measurement-in-whole-blood-and-blood-cell-subsets-recommendations-for-telomere-length-measurement-in-hematological-diseases
#6
Yvonne Lisa Behrens, Kathrin Thomay, Maike Hagedorn, Juliane Ebersold, Lea Henrich, Rainer Nustede, Brigitte Schlegelberger, Gudrun Göhring
Different methods of telomere length measurement are used to identify patients with telomeropathies. In our lab, we established four different methods for telomere length measurement, terminal restriction fragment (TRF) analysis by Southern blot analysis, quantitative PCR (qPCR), quantitative telomere/centromere fluorescence in situ hybridization (T/C-FISH) and fluorescence in situ hybridization combined with flow cytometry (FlowFISH). The methods each have distinct properties and apart from this - according to our experience and data - may have an impact on the individual result...
June 8, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28592222/the-feline-blood-film
#7
John W Harvey
Practical relevance: Many veterinary practices have invested in quality automated hematology instruments for use in-house. However, regardless of their specific choice of analyzer, there are important hematology findings that can only be determined by microscopic examination of stained blood films. For this reason, and also for the purpose of quality control for the analyzer, a quick blood film review should be performed alongside every automated complete blood count. Even those practices that submit their blood samples to outside diagnostic laboratories for evaluation, still require the capability to examine stained blood films in emergency situations...
July 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28589946/elevated-prostaglandin-e2-post-bone-marrow-transplant-mediates-interleukin-1%C3%AE-related-lung-injury
#8
G J Martínez-Colón, Q M Taylor, C A Wilke, A B Podsiad, B B Moore
Hematopoietic stem cell transplant (HSCT) treats or cures a variety of hematological and inherited disorders. Unfortunately, patients who undergo HSCT are susceptible to infections by a wide array of opportunistic pathogens. Pseudomonas aeruginosa bacteria can have life-threatening effects in HSCT patients by causing lung pathology that has been linked to high levels of the potent pro-inflammatory cytokine, interleukin-1β (IL-1β). Using a murine bone marrow transplant (BMT) model, we show that overexpression of prostaglandin E2 (PGE2) post-BMT signals via EP2 or EP4 to induce cyclic adenosine monophosphate (cAMP), which activates protein kinase A or the exchange protein activated by cAMP (Epac) to induce cAMP response element binding-dependent transcription of IL-1β leading to exacerbated lung injury in BMT mice...
June 7, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28588721/palliative-treatment-of-patients-with-inoperable-locally-advanced-recurrent-or-metastatic-head-and-neck-squamous-cell-cancer-using-a-low-dose-and-personalized-chemotherapeutic-regimen
#9
Rohit Bishnoi, Jeffery Bennett, David N Reisman
Inoperable or metastatic head and neck squamous cell cancer (HNSCC) is known to be associated with a poor patient prognosis. First line therapies include a Taxol, platinum-based antineoplastic and fluorouracil (FU) treatment regimen (TPF) or a platinum-based antineoplastic, FU and EGFR inhibitor treatment regimen (PFE). The toxicity of these regimens is one of the major limiting factors, particularly for palliative treatment. The present study is a retrospective study of 15 patients with HNSCC, where the treatment goal was palliative...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28586310/effective-control-of-acute-myeloid-leukaemia-and-acute-lymphoblastic-leukaemia-progression-by-telomerase-specific-adoptive-t-cell-therapy
#10
Sara Sandri, Francesco De Sanctis, Alessia Lamolinara, Federico Boschi, Ornella Poffe, Rosalinda Trovato, Alessandra Fiore, Sara Sartori, Andrea Sbarbati, Attilio Bondanza, Simone Cesaro, Mauro Krampera, Maria T Scupoli, Michael I Nishimura, Manuela Iezzi, Silvia Sartoris, Vincenzo Bronte, Stefano Ugel
Telomerase (TERT) is a ribonucleoprotein enzyme that preserves the molecular organization at the ends of eukaryotic chromosomes. Since TERT deregulation is a common step in leukaemia, treatments targeting telomerase might be useful for the therapy of hematologic malignancies. Despite a large spectrum of potential drugs, their bench-to-bedside translation is quite limited, with only a therapeutic vaccine in the clinic and a telomerase inhibitor at late stage of preclinical validation. We recently demonstrated that the adoptive transfer of T cell transduced with an HLA-A2-restricted T-cell receptor (TCR), which recognize human TERT with high avidity, controls human B-cell chronic lymphocytic leukaemia (B-CLL) progression without severe side-effects in humanized mice...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28585212/lipotoxicity-related-hematological-disorders-in-obesity
#11
Ibrahim Celalettin Haznedaroglu, Umit Yavuz Malkan
Lipotoxicity can mediate endothelial dysfunction in obesity. Altered endothelial cell phenotype during the pathobiological course of the lipotoxicity may lead to the hemostatic abnormalities, which is a hallmark of several hematological disorders. Impaired hemostasis could also be directly related to the numerous metabolic diseases such as hypertension, diabetes and atherosclerosis. On the other hand, local hematopoietic bone marrow (BM) renin-angiotensin system (RAS) contributes to the development of atherosclerosis via acting on the lipotoxicity processes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28583279/pet-in-benign-bone-marrow-disorders
#12
REVIEW
Wouter van der Bruggen, Andor W J M Glaudemans, Edo Vellenga, Riemer H J A Slart
This review aims to describe the current status of benign bone marrow (BM) imaging using PET. BM imaging is important as the BM is not only involved in poiesis of different vital cell lines and can be affected by primary BM disorders, but it is also frequently affected by several extramedullary diseases. Indications for the use of PET in benign BM disorders are the detection of extramedullary hematopoiesis, evaluation of patients with a discrepancy between BM histology and clinical status, visualizing BM infarctions, location of the optimal site for BM biopsy, diagnosing and staging of other hematological BM disorders, evaluation of radiotherapy effect on BM, and evaluation of BM transplantation...
July 2017: Seminars in Nuclear Medicine
https://www.readbyqxmd.com/read/28577052/-analysis-of-therapy-relevant-receptors-in-bone-marrow-carcinosis-comparison-of-pathological-and-clinical-parameters
#13
G Massenkeil, C Gropp, H Kreipe, K Hussein
BACKGROUND: Bone marrow carcinosis is a sign of advanced tumor stage with nonspecific clinical and hematological symptoms. Diagnosis is based on bone marrow biopsy and histopathology, but biopsies are not part of the standard work-up in oncological diseases and data on the correlation between clinical presentation and pathological findings are sparse. MATERIAL AND METHODS: In a retrospective single-center study, data from 20 tumor patients with bone marrow carcinosis were analyzed...
June 2, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28574931/neoadjuvant-weekly-paclitaxel-carboplatin-is-effective-in-stage-i-ii-cervical-cancer
#14
Rawand Salihi, Karin Leunen, Philippe Moerman, Frédéric Amant, Patrick Neven, Ignace Vergote
OBJECTIVE: Neoadjuvant chemotherapy (NACT) followed by surgery in cervical cancer is widely studied with paclitaxel-ifosfamide-cisplatinum 3 weekly (TIP). Although the response rates with TIP are high, the toxicity is substantial. Therefore, this study evaluates dose-dense paclitaxel-carboplatin (TC) as an alternative. METHODS: In this prospective phase 2 study trial, we included 36 patients with International Federation of Gynecology and Obstetrics (FIGO) stage IB1 to IIB cervical cancer, who received 9 weeks' NACT dose-dense TC (median weekly dose paclitaxel 60 mg/m, carboplatinum area under the curve 2...
June 1, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28574430/extracellular-vesicles-in-hematological-malignancies-from-biology-to-therapy
#15
REVIEW
Antonella Caivano, Francesco La Rocca, Ilaria Laurenzana, Stefania Trino, Luciana De Luca, Daniela Lamorte, Luigi Del Vecchio, Pellegrino Musto
Extracellular vesicles (EVs) are a heterogeneous group of particles, between 15 nanometers and 10 microns in diameter, released by almost all cell types in physiological and pathological conditions, including tumors. EVs have recently emerged as particularly interesting informative vehicles, so that they could be considered a true "cell biopsy". Indeed, EV cargo, including proteins, lipids, and nucleic acids, generally reflects the nature and status of the origin cells. In some cases, EVs are enriched of peculiar molecular cargo, thus suggesting at least a degree of specific cellular packaging...
June 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28572025/cobalt-toxicity-in-humans-a-review-of-the-potential-sources-and-systemic-health-effects
#16
REVIEW
Laura Leyssens, Bart Vinck, Catherine Van Der Straeten, Floris Wuyts, Leen Maes
Cobalt (Co) and its compounds are widely distributed in nature and are part of numerous anthropogenic activities. Although cobalt has a biologically necessary role as metal constituent of vitamin B12, excessive exposure has been shown to induce various adverse health effects. This review provides an extended overview of the possible Co sources and related intake routes, the detection and quantification methods for Co intake and the interpretation thereof, and the reported health effects. The Co sources were allocated to four exposure settings: occupational, environmental, dietary and medical exposure...
May 29, 2017: Toxicology
https://www.readbyqxmd.com/read/28569009/myeloid-sarcoma-identified-on-liquid-based-cervical-cytology-samples-a-report-of-two-cases
#17
Jessica S Snider, Yekaterina Eichel, Alisa M Caudell, Olga S Chajewski, Jack Yang, Kathryn G Lindsey
The purpose of the Papanicolaou (Pap) smear is to detect primary squamous lesions of the uterine cervix. Although most successful at detection of squamous lesions, the Pap may also detect metastatic carcinomas, sarcomas, and melanomas. We report two rare cases of myeloid sarcoma (MS) of the uterine cervix identified on screening Pap smears with concurrent confirmatory cervical biopsies. The purpose of our study is to identify and report cytologic features of MS on Pap smears utilizing a liquid-based ThinPrep method, which has not been previously documented in literature...
May 31, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28567372/soluble-factors-on-stage-to-direct-mesenchymal-stem-cells-fate
#18
REVIEW
Cristina Sobacchi, Eleonora Palagano, Anna Villa, Ciro Menale
Mesenchymal stem cells (MSCs) are multipotent stromal cells that are identified by in vitro plastic adherence, colony-forming capacity, expression of a panel of surface molecules, and ability to differentiate at least toward osteogenic, adipogenic, and chondrogenic lineages. They also produce trophic factors with immunomodulatory, proangiogenic, and antiapoptotic functions influencing the behavior of neighboring cells. On the other hand, a reciprocal regulation takes place; in fact, MSCs can be isolated from several tissues, and depending on the original microenvironment and the range of stimuli received from there, they can display differences in their essential characteristics...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28559156/dietary-safety-assessment-of-genetically-modified-rice-eh-rich-in-%C3%AE-carotene
#19
Yangyang Wu, Yan Xu, Yanan Du, Xiao Zhao, Ruili Hu, Xiaorui Fan, Fangfang Ren, Quanhong Yao, Rihe Peng, Xueming Tang, Kai Zhao
This 90-day study aimed to assess the dietary safety of transgenic rice EH which is rich in β-carotene. Two experimental groups of Sprague-Dawley rats were fed diets containing 45% rice flour of Zhonghua 11 rice and transgenic rice EH rich in β-carotene, respectively. The reference group was fed a diet containing standard feed nutrition. During the trial period, each rat was weighed and the food intake was recorded twice a week. Their behaviors were observed daily. In the end, blood samples were obtained from all anesthetized rats to measure the hematologic and serum chemistry indicators...
May 27, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28556532/feline-large-granular-lymphocyte-lymphoma-an-italian-society-of-veterinary-oncology-sioncov-retrospective-study
#20
R Finotello, M E Vasconi, S Sabattini, C Agnoli, C Giacoboni, M Annoni, A Dentini, G Bettini, P Guazzi, D Stefanello, E Bottero, P Mesto, R Marinelli, C De Feo, L Marconato
Feline large granular lymphocyte (LGL) lymphoma is an uncommon subtype of lymphoma characterized by a grave prognosis and scarce response to chemotherapy. There are limited reports on clinico-pathological and prognostic factors. One-hundred and 9 cats with newly diagnosed LGL lymphoma that underwent initial staging (including hematology, serum biochemistry, thoracic radiographs and abdominal ultrasound), and followed-up were retrospectively evaluated. LGL lymphoma was localized within the gastrointestinal tract with or without extra-intestinal involvement in 91...
May 29, 2017: Veterinary and Comparative Oncology
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