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https://www.readbyqxmd.com/read/28323866/elevated-fecal-peptidase-d-at-onset-of-colitis-in-galphai2-mice-a-mouse-model-of-ibd
#1
Daniel Bergemalm, Robert Kruse, Maria Sapnara, Jonas Halfvarson, Elisabeth Hultgren Hörnquist
BACKGROUND: The identification of novel fecal biomarkers in inflammatory bowel disease (IBD) is hampered by the complexity of the human fecal proteome. On the other hand, in experimental mouse models there is probably less variation. We investigated the fecal protein content in mice to identify possible biomarkers and pathogenic mechanisms. METHODS: Fecal samples were collected at onset of inflammation in Galphai2-/- mice, a well-described spontaneous model of chronic colitis, and from healthy littermates...
2017: PloS One
https://www.readbyqxmd.com/read/28319050/extracellular-matrix-proteomics-identifies-molecular-signature-of-symptomatic-carotid-plaques
#2
Sarah R Langley, Karin Willeit, Athanasios Didangelos, Ljubica Perisic Matic, Philipp Skroblin, Javier Barallobre-Barreiro, Mariette Lengquist, Gregor Rungger, Alexander Kapustin, Ludmilla Kedenko, Chris Molenaar, Ruifang Lu, Temo Barwari, Gonca Suna, Xiaoke Yin, Bernhard Iglseder, Bernhard Paulweber, Peter Willeit, Joseph Shalhoub, Gerard Pasterkamp, Alun H Davies, Claudia Monaco, Ulf Hedin, Catherine M Shanahan, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: The identification of patients with high-risk atherosclerotic plaques prior to the manifestation of clinical events remains challenging. Recent findings question histology- and imaging-based definitions of the "vulnerable plaque," necessitating an improved approach for predicting onset of symptoms. METHODS: We performed a proteomics comparison of the vascular extracellular matrix and associated molecules in human carotid endarterectomy specimens from 6 symptomatic versus 6 asymptomatic patients to identify a protein signature for high-risk atherosclerotic plaques...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28302385/primary-cutaneous-interdigitating-dendritic-cell-sarcoma-is-a-morphologic-and-phenotypic-simulator-of-poorly-differentiated-metastatic-melanoma-a-report-of-2-cases-and-review-of-the-literature
#3
REVIEW
Cynthia M Magro, Luke C Olson, Gerard Nuovo, Garron J Solomon
Interdigitating dendritic cell sarcoma (IDS) is a rare form of hematologic malignancy associated with an aggressive clinical course. Only 4 prior cases have been described as originating in the skin. We encountered two male patients ages 47 and 61years of age who presented with solitary cutaneous neoplasms diagnosed as IDS. Histologic exam showed a coalescing nested and multinodular proliferation of large pleomorphic epithelioid cells. In one case an initial diagnosis of melanoma was rendered. A recurrence 8months later was then interpreted as a primary cutaneous IDS...
February 20, 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28301275/serum-s100-protein-could-predict-altered-consciousness-in-glyphosate-or-glufosinate-poisoning-patients
#4
Jung-Won Lee, Young-Jin Choi, Samel Park, Hyo-Wook Gil, Ho-Yeon Song, Sae-Yong Hong
BACKGROUND: Central nervous system (CNS) complications such as seizures and reduced consciousness are important in glufosinate and may occur in severe glyphosate poisoning. The aim of this study was to assess the possible role of serum S100B protein as a biochemical marker of CNS complications associated with glyphosate or glufosinate poisoning. METHODS: The study enrolled 40 patients (23 glyphosate poisoning and 17 glufosinate poisoning). Altered consciousness and seizure were observed during hospitalization...
March 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28296680/primitive-neuroectodermal-tumors-of-the-female-genital-tract-a-morphologic-immunohistochemical-and-molecular-study-of-19-cases
#5
Sarah Chiang, Matija Snuderl, Sakiko Kojiro-Sanada, Ariadna Quer Pi-Sunyer, Dean Daya, Tohru Hayashi, Luisanna Bosincu, Fumihiro Ogawa, Andrew E Rosenberg, Lars-Christian Horn, Lu Wang, A John Iafrate, Esther Oliva
Primary primitive neuroectodermal tumor (PNET) of the female genital tract is rare, and its proper classification remains unclear. The clinical, histologic, and immunophenotypic features as well as EWSR1 rearrangement status of 19 gynecologic PNETs, including 10 ovarian, 8 uterine, and 1 vulvar tumors, are herein reported. Patient age ranged from 12 to 68 years, with a median age of 20 and 51 years among those with ovarian and uterine PNETs, respectively. Morphologic features of central nervous system (CNS) tumors were seen in 15 PNETs, including 9 medulloblastomas, 3 ependymomas, 2 medulloepitheliomas, and 1 glioblastoma, consistent with central PNET...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28296664/histomorphology-and-immunophenotype-of-eczematous-skin-lesions-revisited-skin-biopsies-are-not-reliable-in-differentiating-allergic-contact-dermatitis-irritant-contact-dermatitis-and-atopic-dermatitis
#6
Verena G Frings, Almut Böer-Auer, Kristine Breuer
Lesions of allergic contact dermatitis (ACD), irritant contact dermatitis (ICD), and atopic dermatitis (AD) share similar clinical features and thus, their diagnosis can be challenging. The aim of this study was to reassess histopathology and immunophenotyping properties to distinguish between ACD, ICD, and AD. Charts of patients with eczema, who had undergone complete routine diagnostic workup (skin biopsies, patch tests, skin prick tests, and respectively or serum IgE levels), were reviewed. Thirty-five skin biopsy specimens of 28 patients (mean age 64 ± 15 years; ♀ = 13 ♂ = 15) with clear diagnosis of ACD (n = 15), ICD (n = 6), or AD (n = 14) were analyzed...
March 10, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28296571/efficient-generation-of-functional-schwann-cells-from-adipose-derived-stem-cells-in-defined-conditions
#7
Songtao Xie, Fan Lu, Juntao Han, Ke Tao, Hongtao Wang, Alfred Simental, Dahai Hu, Hao Yang
Schwann cells (SCs) are hitherto regarded as the most promising candidates for viable cell-based therapy to peripheral nervous system (PNS) injuries or degenerative diseases. However, the extreme drawbacks of transplanting autologous SCs for clinical applications still represent a significant bottleneck in neural regenerative medicine, mainly owing to the need of sacrificing a functional nerve to generate autologous SCs and the nature of slow expansion of the SCs. Thus, it is of great importance to establish an alternative cell system for the generation of sufficient SCs...
March 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28296277/effect-of-icariin-in-combination-with-daily-sildenafil-on-penile-atrophy-and-erectile-dysfunction-in-a-rat-model-of-bilateral-cavernous-nerves-injury
#8
Y Xu, H Xin, Y Wu, R Guan, H Lei, X Fu, Z Xin, Y Yang
The commonly utilized phosphodiesterase type 5 inhibitors do not lead to satisfactory penile erection after radical prostatectomy mainly because of insufficient nitric oxide drive from the damaged cavernous nerves. The aim of this study was to assess the efficacy and mechanisms of icariin in combination with daily sildenafil on neurogenic erectile dysfunction and penile atrophy in a rat model of bilateral cavernous nerves injury. Sixty male Sprague-Dawley rats injected with 5-ethynyl-2-deoxyuridine (50 mg/kg) at postnatal day 1 for the purpose of tracking endogenous stem cells in penis...
March 10, 2017: Andrology
https://www.readbyqxmd.com/read/28290147/temporal-profile-and-severity-correlation-of-a-panel-of-rat-spinal-cord-injury-protein-biomarkers
#9
Zhihui Yang, Helen M Bramlett, Ahmed Moghieb, Dongnan Yu, Ping Wang, Fan Lin, Carl Bauer, Tyler M Selig, Emily Jaalouk, Amanda S Weissman, Disa S Rathore, Pammela Romo, Zhiqun Zhang, Ronald L Hayes, Michael Y Wang, W Dalton Dietrich, Kevin K W Wang
In the USA, there are approximately 12,000 new cases of spinal cord injury (SCI) each year and some 1.2 million people living with paralysis due to SCI. Seven percent of them are paralyzed due to an accident or injury occurring while serving in the military. Here, we report a systematic study on protein biomarker candidates in a rat SCI model with either moderate or severe injury. Tissue, cerebrospinal fluid (CSF), and serum samples were obtained at 4 h, 24 h, and 7 days post-injury. The candidate biomarkers included axonal injury markers αII-spectrin breakdown products (SBDP150/145/120), neuronal cell body injury marker ubiquitin C-terminal hydrolase-L1 (UCH-L1), astrogliosis/astroglial injury markers S100 calcium-binding protein-β (S100β), glial fibrillary acidic protein (GFAP) and GFAP breakdown products (GBDPs), demyelination marker myelin basic protein (MBP), axonal injury marker phosphorylated neurofilament-H (pNF-H), and neuroinflammation marker interleukin-6 (IL-6)...
March 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28283336/tissue-engineering-with-peripheral-blood-derived-mesenchymal-stem-cells-promotes-the-regeneration-of-injured-peripheral-nerves
#10
Mengjie Pan, Xianghai Wang, Yijing Chen, Shangtao Cao, Jinkun Wen, Guofeng Wu, Yuanyuan Li, Lixia Li, Changhui Qian, Zhenqi Qin, Zhenlin Li, Dandan Tan, Zhihao Fan, Wutian Wu, Jiasong Guo
Peripheral nerve injury repair can be enhanced by Schwann cell (SC) transplantation, but clinical applications are limited by the lack of a cell source. Thus, alternative systems for generating SCs are desired. Herein, we found the peripheral blood-derived mesenchymal stem cells (PBMSCs) could be induced into SC like cells with expressing SC-specific markers (S100, P75NTR and CNPase) and functional factors (NGF, NT-3, c-Fos, and Krox20). When the induced PBMSCs (iPBMSCs) were transplanted into crushed rat sciatic nerves, they functioned as SCs by wrapping the injured axons and expressing myelin specific marker of MBP...
March 7, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28282514/the-proteomic-profile-of-the-acquired-enamel-pellicle-according-to-its-location-in-the-dental-arches
#11
Talita Mendes da Silva Ventura, Luiza de Paula Silva Cassiano, Cíntia Maria de Souza E Silva, Even Akemi Taira, Aline de Lima Leite, Daniela Rios, Marília Afonso Rabelo Buzalaf
OBJECTIVE: This study evaluated the variation in the protein profile of the acquired enamel pellicle (AEP) formed in vivo according to its location in the dental arches. DESIGN: The AEP was formed for 120min in 9 volunteers. Pellicle formed at upper+lower anterior facial (ULAFa; teeth 13-23 and 33-43), upper anterior palatal (UAPa; teeth 13-23), lower anterior lingual (LALi; teeth 33-43), upper+lower posterior facial (ULPFa; teeth 14-17 24-27, 34-37 and 44-47), upper posterior palatal (UPPa; teeth 14-17 and 24-27) and lower posterior lingual (LPLi; teeth 34-37 and 44-47) regions were collected separately and processed for analysis by label-free LC-ESI-MS/MS...
March 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28280935/crypt-cell-markers-in-the-olfactory-organ-of-poecilia-reticulata-analysis-and-comparison-with-the-fish-model-danio-rerio
#12
Simone Bettini, Liliana Milani, Maurizio Lazzari, Maria Gabriella Maurizii, Valeria Franceschini
Olfactory crypt neurons have been observed in several bony fishes and chondrichtyans. Although their morphology is uniform in all fish, very few is known about their antigenic properties, usually studied in zebrafish, but quite overlooked in other species. We tested in Poecilia reticulata (guppy) the two antibodies recognized to mark zebrafish crypt cells: while anti-S100 showed an immunohistochemical pattern comparable to what reported in zebrafish, anti-TrkA gave no signal. Western blot analysis revealed that S100-antiserum bound an antigen of expected weight, probably belonging to the S100 family...
March 9, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28270941/a-lip-lump-an-unexpected-histological-diagnosis-of-a-lip-schwannoma
#13
Thomas Haigh, John Raad Glore, David Gouldesbrough, Winson Wong
Schwannomas are benign nerve sheath tumours arising from Schwann cells. They comprise 1% of all benign tumours. In the 2016 World Health Organisation Classification of Central Nervous System, they are classified as a tumour of the cranial and paraspinal nerves, Schwannoma 9560/0. A 23-year-old Caucasian lady presented with a seven-month history of a painless right upper lip lump. Examination revealed a small cystic 0.5 cm diameter lesion within the right upper lip. The clinical impression was that of a mucocele...
2017: Case Reports in Otolaryngology
https://www.readbyqxmd.com/read/28266050/cutaneous-dermal-non-neural-granular-cell-tumor-is-a-granular-cell-dermal-root-sheath-fibroma
#14
Angel Fernandez-Flores, David S Cassarino, Erica Riveiro-Falkenbach, José Luis Rodriguez-Peralto, Maria Teresa Fernandez-Figueras, Carlos Monteagudo
Dermal non-neural granular cell tumor (NNGCT) was first described in 1991 as an S100-negative polypoid non-melanocytic tumor. Although originally introduced in the literature as a primary cutaneous tumor, it was later emphasized that such qualification could not be held until the line of differentiation was clarified. It was also demonstrated that not all cases were polypoid. In the current study we try to further characterize this entity by presenting five cases of NNGCT. As expected, not all of them were polypoid...
March 7, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28265014/recast-remote-ischemic-conditioning-after-stroke-trial-a-pilot-randomized-placebo-controlled-phase-ii-trial-in-acute-ischemic-stroke
#15
Timothy J England, Amanda Hedstrom, Saoirse O'Sullivan, Richard Donnelly, David A Barrett, Sarir Sarmad, Nikola Sprigg, Philip M Bath
BACKGROUND AND PURPOSE: Repeated episodes of limb ischemia and reperfusion (remote ischemic conditioning [RIC]) may improve outcome after acute stroke. METHODS: We performed a pilot blinded placebo-controlled trial in patients with acute ischemic stroke, randomized 1:1 to receive 4 cycles of RIC within 24 hours of ictus. The primary outcome was tolerability and feasibility. Secondary outcomes included safety, clinical efficacy (day 90), putative biomarkers (pre- and post-intervention, day 4), and exploratory hemodynamic measures...
March 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28262109/adult-xanthogranulomatous-disease-of-the-orbit-clinical-presentations-evaluation-and-management
#16
J M Ortiz Salvador, D Subiabre Ferrer, A Pérez Ferriols
Adult xanthogranulomatous disease of the orbit refers to a heterogeneous group of clinical syndromes with differing degrees of systemic involvement and distinct prognoses. The different syndromes all present clinically with progressively enlarging, yellowish lesions of the orbit. Histologically, the lesions are characterized by an inflammatory infiltrate of foam cells and Touton-type multinucleated giant cells. The xanthomatized histiocytes are CD68(+), S100(-), and CD1a(-). There are 4 clinical forms of xanthogranulomatous disease of the orbit: adult xanthogranulomatous disease of the orbit, adult onset asthma and periocular xanthogranuloma, necrobiotic xanthogranuloma, and Erdheim-Chester disease...
March 2, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28256609/prognosis-and-progression-of-escc-patients-with-perineural-invasion
#17
Guanghui Xu, Fan Feng, Zhen Liu, Shushang Liu, Gaozan Zheng, Shuao Xiao, Lei Cai, Xuewen Yang, Guocai Li, Xiao Lian, Man Guo, Li Sun, Jianjun Yang, Daiming Fan, Qun Lu, Hongwei Zhang
Perineural invasion (PNI) has been recognized as a poor prognostic factor in several malignancies, but the definition and pathogenesis of PNI in esophageal squamous cell carcinoma (ESCC) remains to be defined. PNI was evaluated by H&E staining and S100 immunohistochemistry. The predictive value of PNI in the prognosis of ESCC patients was analyzed. PNI was evaluated in vitro and in vivo. A total of 54 specimens (17.88%) were defined as PNI-a and 99 specimens (32.78%) as PNI-b. S100 staining was superior to H&E staining for PNI detection (50...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28256528/human-eyelid-adipose-tissue-derived-schwann-cells-promote-regeneration-of-a-transected-sciatic-nerve
#18
Gangyang Wang, Lingling Cao, Yang Wang, Yingqi Hua, Zhengdong Cai, Jun Chen, Lulu Chen, Yuqing Jin, Lina Niu, Hua Shen, Yan Lu, Zunli Shen
Schwann cells (SCs) can promote the regeneration of injured peripheral nerves while the clinical application is limited by donor site complications and the inability to generate an ample amount of cells. In this study, we have isolated human eyelid adipose-derived Schwann cells (hE-SCs) from human eyelid adipose tissue and identified the cell phenotype and function. Using immunofluorescence and H &E staining, we detected subtle nerve fibers and SCs in human eyelid adipose tissue. Immunofluorescence staining indicated that hE-SCs expressed glial markers, such as S100, p75NTR GFAP, Sox10 and Krox20...
March 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28255482/sinonasal-melanoma-a-case-report-and-literature-review
#19
I S S Alves, L G S Berriel, R T Alves, M B Pinto, C F P Oliveira, A C Cazzotto, W V Moura
Purpose. Sinonasal malignant mucosal melanoma is a rare, aggressive tumour. Nasal obstruction and epistaxis are the most commonly reported symptoms, although symptomatology may develop late and be nonspecific, which tends to delay diagnosis, resulting in a poorer prognosis. Case Report. This report describes a 64-year-old male patient with nasal obstruction and epistaxis. Computed tomography of the facial sinuses revealed a large lesion in the right nasal cavity, with infiltration into the left cavity, ethmoidal cells, and erosion of the cribriform plate...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28251322/circulating-calprotectin-as-a-biomarker-of-laryngeal-carcinoma
#20
Muhammet Fatih Topuz, Adem Binnetoglu, Ali Cemal Yumusakhuylu, Murat Sarı, Tekin Baglam, Fetullah Gerin
Calprotectin is an S100 protein and marker of inflammation found in neutrophils and monocytes; S100 proteins are a family of calcium-modulated proteins. The aim of this study was to determine if the serum concentration of calprotectin is higher in patients with laryngeal carcinoma than in patients with benign laryngeal pathologies and controls. The study included 107 participants. The serum calprotectin concentration was analyzed using the calprotectin ELISA (enzyme-linked immunosorbent assay) kit (Calpo AS, Norway)...
March 1, 2017: European Archives of Oto-rhino-laryngology
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