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https://www.readbyqxmd.com/read/28635988/salivary-epithelial-myoepithelial-carcinoma-clinical-morphological-and-molecular-features
#1
R De Cecio, M Cantile, F Fulciniti, G Botti, M P Foschini, N S Losito
Epithelial-myoepithelial carcinoma (EMC) is a rare biphasic tumor accounting for less than 2% of all salivary gland malignancies. It presents as a slowly growing, asymptomatic small size mass, with ulceration of overlying mucosa in some cases. Microscopically, it is characterized by glands lined by the simultaneous presence of two different cell components, inner epithelial cells and outer myoepithelial cells. Immunohistochemical staining of myoepithelial cells is variably positive for vimentin, Smooth Muscle Actin (SMA), Muscle Specific Actin (MSA), S100, Smooth Muscle Myosin Heavy Chain I(SM-MHC), calponin and p63...
March 2017: Pathologica
https://www.readbyqxmd.com/read/28634081/quantitative-proteomic-reveals-the-dynamic-of-protein-profile-during-zebrafish-final-oocyte-maturation
#2
Chunmei Ge, Weiqun Lu, Aqin Chen
The molecular mechanisms underlying final oocyte maturation zebrafish (Danio rerio) remain poorly understood. The present study aimed to employ iTRAQ approach for a comprehensive characterization of during zebrafish oocyte maturation proteome and for comparison between fully-grow immature and mature oocytes prior to ovulation. A total of 1568 proteins were identified, which was representing the largest zebrafish isolated oocytes proteome dataset to date. Differential expression analysis revealed 190 proteins significantly changes between immature and mature oocytes, which 136 proteins were up-regulated and 54 proteins were down-regulated in mature oocytes comparison with immature oocytes...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28629472/protein-s100-as-outcome-predictor-after-out-of-hospital-cardiac-arrest-and-targeted-temperature-management-at-33%C3%A2-%C3%A2-c-and-36%C3%A2-%C3%A2-c
#3
Pascal Stammet, Josef Dankiewicz, Niklas Nielsen, François Fays, Olivier Collignon, Christian Hassager, Michael Wanscher, Johan Undèn, Jorn Wetterslev, Tommaso Pellis, Anders Aneman, Jan Hovdenes, Matt P Wise, Georges Gilson, David Erlinge, Janneke Horn, Tobias Cronberg, Michael Kuiper, Jesper Kjaergaard, Yvan Gasche, Yvan Devaux, Hans Friberg
BACKGROUND: We aimed to investigate the diagnostic performance of S100 as an outcome predictor after out-of-hospital cardiac arrest (OHCA) and the potential influence of two target temperatures (33 °C and 36 °C) on serum levels of S100. METHODS: This is a substudy of the Target Temperature Management after Out-of-Hospital Cardiac Arrest (TTM) trial. Serum levels of S100 were measured a posteriori in a core laboratory in samples collected at 24, 48, and 72 h after OHCA...
June 20, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28629350/the-utility-of-the-hematoxylin-and-eosin-staining-in-patients-with-suspected-hirschsprung-disease
#4
Josephine Amanda Setiadi, Andi Dwihantoro, Kristy Iskandar, Didik Setyo Heriyanto, Gunadi
BACKGROUND: While immunohistochemistry (IHC) methods have been widely conducted for the diagnosis of Hirschsprung disease (HSCR) in developed countries, there are very few studies on their use in developing countries where hematoxylin and eosin (HE) staining is a key element of the diagnosis of HSCR. We aimed to determine the accuracy of HE staining in the diagnosis of HSCR using S100 IHC as the reference standard in Indonesia. METHODS: All histopathology performed for the suspicion of HSCR patients from January 2013 to August 2015 in Dr...
June 19, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28627021/superficial-papular-neuroma-case-series-of-a-new-entity-r2
#5
Stephanie J T Chen, Rajiv M Patel, Christine P Hans, May P Chan, Douglas R Fullen
BACKGROUND: Dermal neural lesions arise in various circumstances and may be difficult to classify. METHODS: We describe the clinical, histopathologic and immunophenotypic features of a series of terminally-differentiated neural lesions not described previously, to our knowledge. RESULTS: Four cases from men aged 58-66 years were included. Some lesions reportedly bled, but no inciting trauma or prior biopsies were reported. None recurred after biopsy, with follow-up ranging from 19 to 113 months...
June 19, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28626403/a-twenty-four-year-old-woman-with-left-flank-lipoma-like-hibernoma
#6
R E Shackelford, M Al Shaarani, J Ansari, E Wei, J Cotelingam
A 24-year-old woman presented with a 5-month history of a left flank mass that was painful on palpation. Magnetic resonance imaging revealed a 10.0 × 6.0 × 2.5 cm mass consistent with lipoma. A fatty lobulated mass was excised and subjected to H&E staining and immunohistochemical analyses. The specimen consisted of mature univacuolated adipocytic cells, with intermixed multivacuolated eosinophilic granular cells. No atypia or hyperchromasia was identified. Most of the cells were S100 positive and Ki-67 immunonegative...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28625441/the-protective-effects-of-dexmedetomidine-on-ischemic-brain-injury-a-meta-analysis
#7
REVIEW
Lianxiang Jiang, Meizhu Hu, Yan Lu, Ya Cao, Yan Chang, Zeping Dai
BACKGROUND: Intracranial lesions, trauma or surgery-related damage activate immune inflammation and neuroendocrine responses, causing ischemic brain injury. Studies have shown that inflammatory cascade mediated by neuroendocrine hormones and proinflammatory mediators is implicated in the pathophysiology of ischemic brain injury. Alpha2-adrenoceptor agonists, dexmedetomidine, is widely used as neuroprotectants in anesthesia practice. However, it is still lack of a comprehensive meta-analysis to evaluate the neuroprotection of dexmedetomidine against ischemic brain injury via suppressing these two physiological responses...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28623370/rho-kinase-inhibitor-y-27632-and-hypoxia-synergistically-enhance-chondrocytic-phenotype-and-modify-s100-protein-profiles-in-human-chondrosarcoma-cells
#8
Juha Piltti, Joakim Bygdell, Cecilia Fernández-Echevarría, Daniel Marcellino, Mikko J Lammi
Articular chondrocytes are slowly dividing cells that tend to lose their cell type-specific phenotype and ability to produce structurally and functionally correct cartilage tissue when cultured. Thus, culture conditions, which enhance the maintenance of chondrocyte phenotype would be very useful for cartilage research. Here we show that Rho-kinase inhibition by Y-27632 under hypoxic conditions efficiently maintains and even enhances chondrocyte-specific extracellular matrix production by chondrocytic cells...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622711/curcumin-accelerates-the-repair-of-sciatic-nerve-injury-in-rats-through-reducing-schwann-cells-apoptosis-and-promoting-myelinization
#9
Zhiwei Zhao, Xiaoling Li, Qing Li
BACKGROUND: Schwann cells (SCs) play an indispensable role in the repair and regeneration of injured peripheral nerve. Curcumin can reduce SCs apoptosis, and promote the regeneration and functional recovery of injured peripheral nerves. However, the corresponding mechanisms are not clear. OBJECTIVE: The article was aimed to explore the effect and corresponding mechanisms of curcumin on the repair of sciatic nerve injury in rats. METHODS: After surgery induced sciatic nerve injury, the model rats were divided into three groups and treated with curcumin, curcumin+PD98059 and curcumin+IGF-1 respectively for 4days...
June 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28617889/erdheim-chester-disease-presenting-with-histiocytic-colitis-and-cytokine-storm
#10
George P Christophi, Yeshika Sharma, Quader Farhan, Umang Jain, Ted Walker, Gregory S Sayuc, Deborah C Rubin
BACKGROUND: Non-Langerhans histiocytosis is a group of inflammatory lymphoproliferative disorders originating from non-clonal expansion of hematopoietic stem cells into cytokine-secreting dendritic cells or macrophages. Erdheim-Chester Disease (ECD) is a rare type of non-Langerhans cell histiocytosis characterized by tissue inflammation and injury caused by macrophage infiltration and histologic findings of foamy histiocytes. Often ECD involves the skeleton, retroperitoneum and the orbits...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28616389/fibrosarcoma-of-the-eyelid-in-two-sibling-czech-wolfdogs
#11
Laura Nordio, Sabina Fattori, Chiara Giudice
Most canine tumors of the eyelid are tumors generally encountered in the skin. They are most commonly of epithelial origin and benign. In this report, we describe the cases of two sibling Czech wolfdogs presented, one year apart, with a subcutaneous mass involving the left eyelid. Both lesions were histologically consistent with a diagnosis of subcutaneous fibrosarcoma. Immunohistochemical analyses of the tumors revealed a mild positivity for vimentin and negativity for GFAP, desmin, αSMA, myoglobin, S100, PNL2 and calponin, excluding all differential diagnosis (i...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28615627/reduction-in-migratory-phenotype-in-a-metastasized-breast-cancer-cell-line-via-downregulation-of-s100a4-and-grm3
#12
Andy Chen, Luqi Wang, Bai-Yan Li, Jesse Sherman, Jong E Ryu, Kazunori Hamamura, Yunlong Liu, Harikrishna Nakshatri, Hiroki Yokota
To investigate phenotypic and genotypic alterations before and after bone metastasis, we conducted genome-wide mRNA profiling and DNA exon sequencing of two cell lines (TMD and BMD) derived from a mouse xenograft model. TMD cells were harvested from the mammary fat pad after transfecting MDA-MB-231 breast cancer cells, while BMD cells were isolated from the metastasized bone. Compared to BMD cells, TMD cells exhibited higher cellular motility. In contrast, BMD cells formed a spheroid with a smoother and more circular surface when co-cultured with osteoblasts...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28614212/phosphaturic-mesenchymal-tumors-clinicopathologic-immunohistochemical-and-molecular-analysis-of-22-cases-expanding-their-morphologic-and-immunophenotypic-spectrum
#13
Abbas Agaimy, Michael Michal, Simion Chiosea, Fredrik Petersson, Ladislav Hadravsky, Glenn Kristiansen, Raymund E Horch, Jan Schmolders, Arndt Hartmann, Florian Haller, Michal Michal
Phosphaturic mesenchymal tumor (PMT) is a rare neoplasm of uncertain histogenesis that has been linked to tumor-induced osteomalacia (TIO) since 1959. The neoplastic cells produce increased amount of FGF23 which results in TIO via uncontrolled renal loss of phosphate (phosphaturia), and consequently diminished bone mineralization. To date, ∼300 cases have been reported. Although there is increasing evidence that PMT can be diagnosed by reproducible histopathologic features, firm diagnosis has been often restricted to cases associated with TIO and, hence, diagnosis of "nonphosphaturic variants" remained challenging...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28609381/remote-ischemic-conditioning-preserves-cognition-and-motor-coordination-in-a-mouse-model-of-traumatic-brain-injury
#14
Alexander J Sandweiss, Asad Azim, Kareem Ibraheem, Tally M Largent-Milnes, Peter Rhee, Todd W Vanderah, Bellal Joseph
INTRODUCTION: Management of traumatic brain injury (TBI) is focused on minimizing or preventing secondary brain injury. Remote ischemic conditioning (RIC) is an established treatment modality that has been shown to improve patient outcomes in different clinical settings by influencing inflammatory insults. In a clinical trial, RIC showed amelioration of SB100 and NSE. The aim of our study was to further elucidate the mechanisms and outcome when applying RIC in a mouse model of traumatic brain injury...
June 13, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28609200/significance-of-s100a8-s100a9-and-calprotectin-levels-in-bladder-cancer
#15
O Yasar, T Akcay, C Obek, F A Turegun
OBJECTIVES: Members of the S100 protein family, S100A8, S100A9 and their heterodimer complex known as calprotectin are thought to be involved not only in inflammatory pathways but also in tumorigenesis and cancer progression. Therefore, they have been widely studied in various types of cancer; however, there is limited knowledge about their role in bladder cancer. In this study, our aim was to determine the levels of S100A8 and S100A9 in the sera, and calprotectin levels in the sera and urines of bladder cancer patients and compare it to urinary BTA, a tumor marker that can be used in the diagnosis of bladder cancer...
June 13, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28607817/a-rare-case-report-of-mixed-olfactory-neuroblastoma-carcinoma-with-review-of-literature
#16
Charandeep S Gandhoke, Aditi Dewan, Divya Gupta, Simran K Syal, Anita Jagetia, Ravindra K Saran, Ravi Meher, Arvind K Srivastava, Daljit Singh
BACKGROUND: Olfactory neuroblastoma (ONB) is a rare malignant neuroectodermal tumor of the nasal cavity. Mixed olfactory neuroblastoma which contains areas of divergent differentiation is even rare. Till date, only 4 cases of mixed olfactory neuroblastomas have been reported. CASE DESCRIPTION: We report the case of a 46-year-old male who presented with the chief complaints of nasal bleeding and nasal obstruction since 4 months. Radiological imaging was suggestive of a large heterogeneous mass in the left superior nasal cavity with extensions into bilateral maxillary, ethmoidal, and sphenoidal sinuses, as well as into the anterior cranial fossa...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28607296/a-case-report-of-oesophageal-schwannoma-with-thoracoscopic-surgery
#17
Zhiliang Hu, Zhun He, Xianfeng Li, Chuanliang Peng, Zhen Li
Oesophageal schwannomas is a rare tumour and most commonly found incidentally or from diagnostic workup of dysphagia or dyspnoea. Most oesophageal schwannomas are benign and more frequently occurs in female than in the male. To date, <40 cases have been described in the English literature. In this study, we reported the case of a 57-year-old woman visited our hospital with the symptom of long-time dysphagia. A thoracic computed tomography demonstrated an upper oesophageal well marginated and homogeneous mass that adhered to the right wall of the oesophagus...
July 2017: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/28605747/histopathological-and-immunohistochemical-findings-in-congenital-pouch-colon-a-prospective-study
#18
Hema Udawat, Vandana Nunia, Praveen Mathur, Harsh Prasad Udawat, Kusum Lata Gaur, Amulya K Saxena, M Krishna Mohan
BACKGROUND: There is a paucity of literature on the histopathological aspects of congenital pouch colon (CPC) and immunohistochemical (IHC) assessment has not been reported. So we planned to study the histopathological and IHC findings within the spectrum of CPC and compare the findings with the normal colon. METHODS: This is a descriptive prospective study on CPC patients. There were 49 cases of CPC (42 males and 7 females) and 13 controls. Histological examination was done using hematoxylin and eosin and Masson trichrome stain...
June 13, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28603602/a-rare-case-of-perianal-granular-cell-tumor-case-report-and-literature-review
#19
Emily F Kelly, Alan A Stein, Xiaoling Charlene Ma, Jose Yeguez
Granular cell tumor (GCT) is a rare submucosal neoplasm most commonly localized in the oral mucosa; with one-third of all cases found in the tongue, with less than 30 cases of perianal GCT reported in the literature, making it a rare anal neoplasm. Wide local excision is the gold standard of treatment and follow-up includes annual colonoscopy due to the high incidence of reoccurrence. Here we describe a rare case of benign perianal GCT in a 29-year-old female who presented asymptomatically; however, pathology report revealed a S100 positive immunostaining pattern...
June 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28600703/prevalence-of-s-gene-mutations-within-the-major-hydrophilic-region-of-hepatitis-b-virus-in-patients-in-dongguan-southern-china
#20
Siping Li, Mingyu Xie, Wenrui Li, Qi Peng, Baimao Zhong, Xiaomei Lu, Qiang Ma
HBsAg point mutations within the major hydrophilic region (MHR) have frequently been reported to be associated with diagnostic failure, vaccine escape and immunotherapy escape. However, the prevalence of escape mutations in chronic hepatitis B (CHB) patients has not been systematically studied in patients from southern China within the past decade. This study aimed to determine the prevalence of escape mutations within the MHR of hepatitis B virus in patients in Dongguan, southern China. Between June 2015 and May 2016, 391 patients who were chronically infected with HBV were enrolled in the study, including 240 patients with the genotype B strain and 151 with the genotype C strain...
June 9, 2017: Archives of Virology
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