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https://www.readbyqxmd.com/read/29676322/corneal-fibroma-an-uncommon-stromal-tumor
#1
Akshay Gopinathan Nair, Hemal Kenia, Indumati Gopinathan, Siddharth V Mehta, Vinod C Mehta
A 56-year-old male patient presented with a slow-growing, elevated, smooth, white corneal mass. The mass was excised by performing an alcohol-assisted keratoepitheliectomy and sent for histopathological examination. Subepithelially, closely packed spindle cells in "feather-stitched" or storiform pattern were seen. Immunohistochemically, the cells stained negatively for CD-34 and S-100 and focal positivity was seen for vimentin. Based on the morphology and immunochemical staining, a diagnosis of corneal fibroma was made...
May 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29673921/bicyclist-s-vulva-diagnostic-and-therapeutic-aspects
#2
A Grouin, S Rouquette, M Saïdani, S Henno, V Lavoué, J Levêque
The authors report a case of a rare vulvar condition in a young cyclist, known as bicyclist's vulva. The diagnosis was based on the clinical context (intensive cycling training with repeated saddle sores, responsible for painless unilateral swelling of the labium majus to a significant size and functional discomfort). Imaging examinations were used to characterise the lesion and its relationship with the pelvic organs. The lesion was composed of connective tissue, poorly demarcated and heavily collagenised without necrotic or haemorrhagic areas...
April 16, 2018: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29630155/a-mixed-form-of-intravascular-papillary-endothelial-hyperplasia-in-an-uncommon-location-case-and-literature-review
#3
Noala Vicensoto Moreira Milhan, Letícia Cavassini Torquato, Victor Costa, Andrea Carvalho De Marco, Yasmin Rodarte Carvalho, Ana Lia Anbinde
Intravascular papillary endothelial hyperplasia (IPEH) is an unusual benign, non-neoplastic vascular lesion that usually occurs in skin, but is uncommon in the oral cavity. Herein, we review the pertinent literature of oraiiPEH and report a new mixed form. A 61-year- old man presented with an ulcerated nodule in the lingual portion of the gingiva related to the left mandibular canine. An excisional biopsy was performed presuming the clinical diagnosis of pyogenic granuloma. Histopathological analysis showed areas of granulation tissue consistent with pyogenic  granuloma...
February 15, 2018: Dermatology Online Journal
https://www.readbyqxmd.com/read/29630088/gastrointestinal-stromal-tumors-a-clinicopathological-and-immunohistochemical-study-of-65-cases
#4
Merih Tepeoğlu, Gonca Özgün, M Zeyneb Tunca, Tugan Tezcaner, B Handan Özdemir
OBJECTIVE: The clinical behavior of gastrointestinal stromal tumors is divergent. The aim of the present study was to define the clinicopathological features that determine the patient's outcome. MATERIAL AND METHOD: Sixty-five gastrointestinal stromal tumors were reviewed with their histological, immunohistochemical and clinical features and compared with their clinical outcome statistically. RESULTS: Tumors were located in the stomach (n=39, 60%), small intestine (n=22, 33...
April 9, 2018: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/29620517/solitary-fibrous-tumor-of-the-kidney-treated-with-laparoscopic-partial-nephrectomy-a-case-report
#5
Xing Chen, Jian-Feng Wang, Zhen-Shan Ding, Xiao-Feng Zhou
We herein reported a 27-year-old woman with a right renal mass for two years. She underwent laparoscopic partial nephrectomy. Immunohistochemical examination of the specimen confirmed the diagnosis of solitary fibrous tumor by revealing its positive staining for cluster of differentiation (CD)34, epithelial membrane antigen (EMA), B-cell lymphoma-2 (Bcl-2) and CD99 in the tumor cells. No adjuvant treatment was carried out. The patient was in good health without local recurrence or metastasis during 2 years of follow-up...
March 30, 2018: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/29615057/an-in-vitro-investigation-of-telocytes-educated-macrophages-morphology-heterocellular-junctions-apoptosis-and-invasion-analysis
#6
Xiao-Juan Jiang, Dragos Cretoiu, Zong-Ji Shen, Xiao-Jun Yang
BACKGROUND: Telocytes (TCs), a recently discovered novel type of interstitial cells, were also found in a wide variety of human and mammalian reproductive organs/tissues, including uterus, oviduct and placenta. Previously, we demonstrated that TCs-conditioned media was capable of activating peritoneal macrophages (pMACs) through paracrine effects. This study investigates the hypothesis that direct interaction of TCs with pMACs will also play a significant role in immunoregulation of pMACs...
April 3, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29565632/higher-gene-expression-of-healing-factors-in-anterior-cruciate-ligament-remnant-in-acute-anterior-cruciate-ligament-tear
#7
João Victor Novaretti, Diego Costa Astur, Davi Casadio, Alexandre Pedro Nicolini, Alberto de Castro Pochini, Carlos Vicente Andreoli, Benno Ejnisman, Moises Cohen
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with remnant preservation has been described and related to potential advantages. Literature is lacking regarding gene expression of potential factors related to ligament healing in the ACL remnant and its relation to time from injury. HYPOTHESIS: The mRNA expression of ligament healing factors in the ACL remnant would be higher in acute tears (<3 months from injury) than in intermediate (3-12 months) and chronic (>12 months) injuries...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29541182/association-between-contrast-enhanced-ultrasonography-and-histopathological-findings-of-the-metastatic-lymph-nodes-of-patients-with-head-and-neck-cancer-a-preliminary-study
#8
Shin-Ichi Oikawa, Kiyoto Shiga, Daisuke Saito, Katsunori Katagiri, Aya Ikeda, Kodai Tuchida, Jun Miyaguchi, Kazuyuki Ishida, Tamotsu Sugai
The present study aimed to investigate the usefulness of contrast-enhanced ultrasonography (CEUS) and a newly developed analysis software for the detection of microcapillary network distribution in lymph nodes of patients with head and neck cancer (HNC) by comparing the CEUS and histopathological findings. Patients that were diagnosed with HNC between February and September 2016 were enrolled. A total of five patients underwent resection of the primary tumor and neck dissection as their initial treatment. The cervical lymph nodes of these patients were analyzed by CEUS intraoperatively, and their surgical specimens were examined histopathologically...
April 2018: Oncology Letters
https://www.readbyqxmd.com/read/29519681/a-novel-surgical-technique-for-a-rat-subcutaneous-implantation-of-a-tissue-engineered-scaffold
#9
Reza Khorramirouz, Jason L Go, Christopher Noble, Soumen Jana, Eva Maxson, Amir Lerman, Melissa D Young
OBJECTIVES: Subcutaneous implantations in small animal models are currently required for preclinical studies of acellular tissue to evaluate biocompatibility, including host recellularization and immunogenic reactivity. METHODS: Three rat subcutaneous implantation methods were evaluated in six Sprague Dawley rats. An acellular xenograft made from porcine pericardium was used as the tissue-scaffold. Three implantation methods were performed; 1) Suture method is where a tissue-scaffold was implanted by suturing its border to the external oblique muscle, 2) Control method is where a tissue-scaffold was implanted without any suturing or support, 3) Frame method is where a tissue-scaffold was attached to a circular frame composed of polycaprolactone (PCL) biomaterial and placed subcutaneously...
April 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29503937/malignant-solitary-fibrous-tumor-of-the-orbit-spectrum-of-histologic-features
#10
Lilangi S Ediriwickrema, Michael Burnstine, Maria S Saber, Narsing Rao
Purpose: Primary malignant solitary fibrous tumor (SFT) of the orbit is a rare spindle cell neoplasm that requires excisional biopsy for histopathological diagnosis. We present a clinical case using contemporary immunohistochemical stains, report on the latest World Health Organization classification, and provide a review of the literature. Observations: Report of a single case of a 65 year old male who presented with right-sided proptosis, limited adduction, ptosis, lateral globe displacement, and cheek festooning...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29482713/primary-renal-epithelioid-angiosarcoma
#11
Muhammad Waqas, Waqas Rahim, Durre Shohab, Muhammad Athar Khawaja, Zafar Ali, Nadira Mamoon
Primary renal angiosarcoma is a rare tumor. Epithelioid variant of primary renal angiosarcoma is extremely rare and aggressive entity described in literature as a few case reports. It presents as solid looking renal mass as other renal cell carcinomas. Management is not well described due to scarcity of cases and aggressiveness of disease. We hereby report a case of epithelioid renal angiosarcoma in a 62-year female who presented with features of infected perinephric collection. Histopathological and immunohistochemical examinations of the renal specimen revealed lower polar renal tumor with atypical epithelioid cells having eccentric nuclei with coarse chromatin and eosinophilic cytoplasm, which were positive for vascular endothelial (FLI-1, CD 34, CD31 and factor VII) as well as epithelial (CKAE1/AE3) immune markers...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29457540/therapeutic-efficacy-of-cd34-cell-involved-mononuclear-cell-therapy-for-no-option-critical-limb-ischemia-a-meta-analysis-of-randomized-controlled-clinical-trials
#12
Tianyue Pan, Zheng Wei, Yuan Fang, Zhihui Dong, Weiguo Fu
Early-phase clinical trials in patients with critical limb ischemia (CLI) have shown positive results of mononuclear cell therapy. The current meta-analysis investigated whether cluster of differentiation (CD) 34+ mononuclear cell therapy (CD34+ MCT) is effective for no-option CLI. Ten randomized controlled clinical studies of CD34+ MCT for no-option CLI with 479 patients were identified and analyzed for pooled results. Compared to control groups, the CD34+ MCT was associated with lower total amputation (odds ratio (OR): 0...
February 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29456659/prmt1-rbm15-axis-regulates-megakaryocytic-differentiation-of-human-umbilical-cord-blood-cd34-cells
#13
Shuiling Jin, Yanfang Mi, Jing Song, Peipei Zhang, Yanyan Liu
Protein arginine methyltransferase 1 (PRMT1) serves pivotal roles in various cellular processes. However, its role in megakaryocytic differentiation has not been clearly reported. The aim of the present study was to explore the role of the PRMT-RNA binding motif protein 15 (RBM15) axis in human MK differentiation and the feasibility of targeting PRMT1 for leukemia treatment. In the present study, PRMT1 was overexpressed and the RBM15 protein was knocked down in human umbilical cord blood cluster of differentiation (CD)34+ cells and the cells were then cultured in megakaryocytic differentiation medium...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29393458/microrna-126-stromal-cell-derived-factor-1-c-x-c-chemokine-receptor-type-7-signaling-pathway-promotes-post-stroke-angiogenesis-of-endothelial-progenitor-cell-transplantation
#14
Caiyun Shan, Yongsheng Ma
Stroke is the most common cause of mortality worldwide. Post-stroke angiogenesis is of great significance to the treatment of strokes. The aim of the present study was to investigate the mechanism underlying the angiogenesis-promoting effect of microRNA‑126 (miR‑126)‑associated signaling pathways using a stroke model in vivo and a cell migration model in vitro. Bone marrow‑derived endothelial progenitor cells (EPCs) were extracted and identified using a density gradient method. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to examine the expression levels of miR‑126 and C‑X‑C chemokine receptor type 7 (CXCR7)...
April 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29390499/rapid-metastasis-of-mediastinal-solitary-fibrous-tumor-report-a-case
#15
Yingming Xiang, Shaosong Tu, Fangbiao Zhang
RATIONALE: Mediastinal solitary fibrous tumors (SFTs) are rare mesenchymal neoplasms. Complete resection is considered as the effective treatment and the prognosis is quite good. Rapid metastasis after surgery is extremely rare. PATIENT CONCERNS: In this case report we describe a 42-year-old man who present with a mediastinal malignant SFTs. Enhanced computed tomography of chest revealed a 4.5 × 4.0-cm mass in the anterior mediastinum. DIAGNOSES: The tumor is composed of massive proliferation of atypical spindle cells...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29302254/terminally-differentiating-eosinophils-express-neutrophil-primary-granule-proteins-as-well-as-eosinophil-specific-granule-proteins-in-a-temporal-manner
#16
Karam Kim, Sae Mi Hwang, Sung Min Kim, Sung Woo Park, Yunjae Jung, Il Yup Chung
Neutrophils and eosinophils, 2 prominent granulocytes, are commonly derived from myelocytic progenitors through successive stages in the bone marrow. Our previous genome-wide transcriptomic data unexpectedly showed that genes encoding a multitude of neutrophil primary granule proteins (NPGPs) were markedly downregulated during the end period of eosinophilic terminal differentiation when cord blood (CB) cluster of differentiation (CD) 34+ cells were induced to differentiate toward the eosinophil lineage during a 24-day culture period...
December 2017: Immune Network
https://www.readbyqxmd.com/read/29191663/impact-of-single-dose-plerixafor-as-an-adjunct-to-granulocyte-colony-stimulating-factor-based-peripheral-blood-stem-cell-mobilization-on-the-graft-composition-and-outcome-for-t-cell-replete-haploidentical-peripheral-blood-stem-cell-transplantation-with-post
#17
Sarita Rani Jaiswal, Prakash Bhakuni, Aby Joy, Nisha Murli, Priyanka Bharadwaj, Shamsur Zaman, Murugayan Nedunchezian, Suparno Chakrabarti
We conducted a prospective study on T and natural killer (NK) cell subset composition of graft and transplant outcomes in T cell-replete haploidentical transplantation with a single dose of subcutaneous plerixafor (Px) added to granulocyte colony-stimulating factor (G-CSF)-based mobilization in allogeneic donors to collect 10 × 106 /kg CD34+ hematopoietic stem cells (HSCs) at single apheresis. Twnety-six donors received G-CSF + Px and 25 G-CSF alone for mobilization. Despite significantly lower peripheral blood (PB) CD34+ HSCs on day 4 in the G-CSF + Px group (33 [range, 6-47] cells/µL versus 81 [range, 50-168] cells/µL in the G-CSF group; P = ...
March 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29162401/risk-factors-for-poor-mobilization-in-solid-tumors-how-effectively-can-we-mobilize-patients-with-solid-tumors
#18
Fergun Yilmaz, Nur Soyer, Ruchan Uslu, Mahmut Tobu, Burcak Karaca, Guray Saydam, Fahri Sahin, Filiz Vural
BACKGROUND: In the literature, risk factors for poor mobilization were tried to identify. However, most of the studies consisted heterogeneous group of patients including both hematologic and oncologic malignancies. In this study, we aimed to identify the risk factors for poor mobilization in adults with solid tumors. METHODS: We enrolled 49(47 men, 2 women) adult patients with solid tumor who were mobilized between September 2007 and February 2017. All the mobilization procedures were performed with G-CSF(10μg/kg/day) with chemotherapy...
December 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29108921/micrornas-expression-pattern-related-to-mast-cell-activation-and-angiogenesis-in-paraffin-embedded-salivary-gland-tumors
#19
Poliana Ramos Braga Santos, Claúdia Malheiros Coutinho-Camillo, Fernando Augusto Soares, Valéria Souza Freitas, Deise Souza Vilas-Bôas, Flávia Caló Aquino Xavier, Clarissa Araújo Gurgel Rocha, Iguaracyra Barreto de Araújo, Jean Nunes Dos Santos
The aim of this study was evaluate the expression profile of microRNAs related to mast cells activation and angiogenesis in salivary glands tumors. METHOD: We have analyzed the expression of miR-9, miR-16, miR-17, miR-132, miR-195 and miR-221 by real-time RT-PCR, in 11 adenoid cystic carcinomas, 9 mucoepidermoid carcinomas and 11 pleomorphic adenomas. Immunohistochemical investigation was performed to detect mast cells tryptase and CD-34 for microvessels biomarkers. miR-16, miR-17, miR-132, miR-195 and miR-221 showed a decreased expression, whereas miR-9 showed an increased expression in most cases compared to normal tissues...
October 18, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29067121/effect-of-testosterone-and-hypoxia-on-the-expansion-of-umbilical-cord-blood-cd34-cells-in-vitro
#20
Liping Zhou, Xiaowei Zhang, Panpan Zhou, Xue Li, Xuejing Xu, Qing Shi, Dong Li, Xiuli Ju
Successfully expanding hematopoietic stem cells (HSCs) is advantageous for clinical HSC transplantation. The present study investigated the influence of testosterone on the proliferation, antigen phenotype and expression of hematopoiesis-related genes in umbilical cord blood-derived cluster of differentiation (CD)34+ cells under normoxic or hypoxia conditions. Cord blood (CB) CD34+ cells were separated using magnetic activated cell sorting. A cytokine cocktail and feeder cells were used to stimulate the expansion of CD34+ cells under normoxic (20% O2 ) and hypoxic (1% O2 ) conditions for 7 days and testosterone was added accordingly...
November 2017: Experimental and Therapeutic Medicine
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