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Aanchal Kakkar, Vijay Mariadas Antony, Raja Pramanik, Pirabu Sakthivel, Chirom Amit Singh, Deepali Jain
A significant proportion of sinonasal malignancies is comprised of poorly differentiated/undifferentiated carcinomas that defy accurate histological classification, and behave aggressively. Recent years have seen a refinement of this spectrum by inclusion of novel entities harboring specific genetic alterations, including SMARCB1 (INI1)-deficient sinonasal carcinoma (SDSC), characterized by inactivating alterations in SMARCB1 gene, as demonstrated by loss of INI1 immunoexpression. Cyclin D1 is a cell-cycle regulatory protein downstream of INI1...
August 15, 2018: Human Pathology
Numan Karaarslan, Ibrahim Yilmaz, Hanefi Ozbek, Duygu Yasar Sirin, Necati Kaplan, Tezcan Caliskan, Cigdem Ozdemir, Yener Akyuva, Ozkan Ates
In the literature, there have been no studies showing clear results on how radio-contrast pharmaceuticals would affect intact disc tissue cells. In this context, it was aimed to evaluate the effects of Iopromide and Gadoxetic acid, frequently used in the discography, on intact lumbar disc tissue in pharmaco-molecular and histopathological level. Primary cell cultures were prepared from the healthy disc tissue of the patients operated in the neurosurgery clinic. Except for the control group, the cultures were incubated with the indicated radio-contrast agents...
August 18, 2018: Basic & Clinical Pharmacology & Toxicology
Bingfeng Luo, Jing Li, Tao Yang, Wenbin Li, Juanhong Zhang, Chang Wang, Anpeng Zhao, Rong Wang
With studies indicative of altered renal excretion under high altitude (HA)-induced hypobaric hypoxia (HH), consideration of better therapeutic approaches has continuously been aimed in research for HA related illness management. Pharmacokinetics of drugs like furosemide might be altered under hypoxic condition, which makes essential to establish different dose-regimen to maintain therapeutic efficacy or avoid toxic side effects at HA. Simultaneously, the drug-drug interactions (DDIs) mediated by OAT1 was occurred at HA, to severely affect furosemide pharmacokinetics...
August 17, 2018: Biopharmaceutics & Drug Disposition
Yukako Nakanishi, Kazuhiro Kitajima, Yusuke Yamada, Takahiko Hashimoto, Toru Suzuki, Shuken Go, Akihiro Kanematsu, Michio Nojima, Koichiro Yamakado, Shingo Yamamoto
PURPOSE: To compare findings obtained with 11 C-choline and FDG PET/CT scanning for renal cell carcinoma staging and restaging. MATERIALS AND METHODS: Twenty-eight renal cell carcinoma patients whose histological subtype was clear cell type in 26 and papillary type in 2, while Fuhrman nuclear grade was G1,2 in 16 and G3,4 in 12, underwent both 11 C-choline and FDG PET/CT examinations before (n = 10) and/or after (n = 18) treatment, then those scanning modalities were compared in regard to patient- and lesion-based diagnostic performance using 5 grading scores...
August 17, 2018: Annals of Nuclear Medicine
Camila K Cerqueira-Cézar, Peter C Thompson, Fernando H A Murata, Joseph Mowery, Justin D Brown, Jeremy Banfield, Benjamin M Rosenthal, Jitender P Dubey
Sarcocystis sarcocysts are common in many species of domestic and wild animals. Here, we report sarcocystosis in muscles from 91 free range elk (Cervus elaphus) from Pennsylvania, USA, tested by histopathology, transmission electron microscopy (TEM), and DNA sequencing. Sarcocysts were detected in hematoxylin and eosin (HE)-stained sections from 83 of 91 (91.2%) elk, including 83/91 (91.2%) tongues and 15/17 (88.2%) hearts. With respect to age, sarcocysts were found in 0/5 calves, 8/9 (88.8%) yearlings, and 75/77 (97...
August 17, 2018: Parasitology Research
Kathryn E Darras, Sheldon J Clark, Heejun Kang, Mohammed F Mohammed, Sarah Barrett, Silvia D Chang, Alison C Harris, Savvas Nicolaou, Patrick D McLaughlin
PURPOSE: To evaluate the role of virtual monoenergetic imaging (VMI) in the detection of peritoneal metastatic disease in contrast-enhanced computed tomography (CT) of the abdomen and pelvis and to compare this technique to the conventional 120 kV mixed dataset. MATERIALS AND METHODS: Institutional review board approval was obtained with no informed consent required for this retrospective analysis. 43 consecutive patients with histopathologically confirmed peritoneal disease were scanned using a standard protocol on a 128-section dual-source, dual-energy CT system (100/140 keV)...
August 17, 2018: Abdominal Radiology
Jack Crozier, Nathan Papa, Marlon Perera, Brian Ngo, Damien Bolton, Shomik Sengupta, Nathan Lawrentschuk
PURPOSE: The detection of lymph node metastases in bladder cancer has a significant impact on treatment decisions. Multiple imaging modalities are available to clinicians including magnetic resonance imaging, computed tomography and positron emission tomography. We aimed to investigate the utility of alternate imaging modalities on pre-cystectomy imaging in bladder cancer for the detection of lymph node metastases. METHODS: We performed systematic search of Web of Science (including MEDLINE), EMBASE and Cochrane libraries in accordance with the PRISMA statement...
August 17, 2018: World Journal of Urology
S Joukainen, A Masarwah, M Könönen, M Husso, A Sutela, V Kärjä, R Vanninen, M Sudah
OBJECTIVES: To prospectively determine the feasibility of preoperative supine breast MRI in breast cancer patients scheduled for oncoplastic breast-conserving surgery. METHODS: In addition to a diagnostic prone breast MRI, a supplementary supine MRI was performed with the patient in the surgical position including skin markers. Tumours' locations were ink-marked on the skin according to findings obtained from supine MRI. Changes in tumours' largest diameter and locations between prone and supine MRI were measured and compared to histology...
August 17, 2018: European Radiology
Matthew J Simon, Marie X Wang, Charles F Murchison, Natalie E Roese, Erin L Boespflug, Randall L Woltjer, Jeffrey J Iliff
The deposition of misfolded proteins, including amyloid beta plaques and neurofibrillary tangles is the histopathological hallmark of Alzheimer's disease (AD). The glymphatic system, a brain-wide network of perivascular pathways that supports interstitial solute clearance, is dependent upon expression of the perivascular astroglial water channel aquaporin-4 (AQP4). Impairment of glymphatic function in the aging rodent brain is associated with reduced perivascular AQP4 localization, and in human subjects, reduced perivascular AQP4 localization is associated with AD diagnosis and pathology...
August 17, 2018: Scientific Reports
A Vysakh, Kuriakose Jayesh, Lal Raisa Helen, Mathew Jyothis, M S Latha
BACKGROUND: The plant Rotula aquatica Lour. was traditionally well known due to its large number of pharmacological action and medicinal uses. The plant is a necessary component of many Ayurvedic drug preparations since historical times. It is widely used as a crucial ancient drug for kidney and bladder stones. OBJECTIVES: The main objective of the study was to evaluate the acute toxicity and anti inflammatory efficacy of methanolic extract of R.aquatica Lour. in in vivo models...
August 14, 2018: Journal of Ayurveda and Integrative Medicine
Arnault Tauziède-Espariat, Johnny Raffoul, Shan Rong Sun, Catherine Lassabe, Christine Monnin
We report the case of a Caucasian 73-year-old woman, without medical history, who is operated of two lesions of the forehead and the scalp measuring 0.4 and 1cm. There is no adenopathy. Histopathological examination revealed a diffuse vascular proliferation of the dermis and the hypodermis composed of small vessels bordered of plump "epthelioid" endothelial cells. There is no mitotic figure. The stroma is slightly fibrous accompanied by a polymorphic inflammatory infiltrate rich in lymphocytes, sometimes arranged in lymphoid follicles, plasma cells and eosinophils...
August 14, 2018: Annales de Pathologie
Yun-Dong Xie, Zi-Zhang Chen, Li-Hua Shao, Qiu-Tang Wang, Na Li, Wen-Fang Lu, Yan-Hong Xu, Yu-Qiong Gao, Li-Ying Guo, Hao-Le Liu, Yi-Ping Li, Guang-De Yang, Xiao-Li Bian
Oxidative stress has been regarded as the leading mechanism of the hepatotoxicity of clofibrate (CF). To achieve multifunctional novel hypolipidemic agents with hypolipidemia, antioxidant, and ameliorating liver injury, clofibric acid derivative hydroxytyrosol-clofibrate (CF-HT) was synthesized by molecular hybridization. CF-HT exhibited significant hypolipidemia, reducing serum triglyceride (TG), total cholesterol (TC), and malonaldehyde (MDA) by 30%, 33%, and 29% in hyperlipidemic mice induced by Triton WR 1339...
June 5, 2018: Bioorganic & Medicinal Chemistry Letters
Jian Hong, Budong Chen, Xin Yao, Yushan Yang
PURPOSE: To compare surgical outcomes and adverse events between patients received microsurgical resection of high-grade gliomas with or without fluorescein sodium-guidance. PATIENTS: A retrospective study was conducted in our hospital between June 2016 and January 2017. Patients were divided into 2 groups: Fluorescein Group (42 patients) and Nonfluorescein Group (40 patients). MEASUREMENTS: Intraoperative (hemorrhage value and operation time) and postoperative (consistency between fluorescence-stained tissue and histopathological results, rate of resection) measurements were documented...
August 7, 2018: Current Problems in Cancer
Marcelo Zanchetta do Nascimento, Alessandro Santana Martins, Thaína Aparecida Azevedo Tosta, Leandro Alves Neves
Mantle cell lymphoma, follicular lymphoma and chronic lymphocytic leukemia are the principle subtypes of the non-Hodgkin lymphomas. The diversity of clinical presentations and the histopathological features have made diagnosis of such lymphomas a complex task for specialists. Computer aided diagnosis systems employ computational vision and image processing techniques, which contribute toward the detection, diagnosis and prognosis of digitised images of histological samples. Studies aimed at improving the understanding of morphological and non-morphological features for classification of lymphoma remain a challenge in this area...
September 2018: Computer Methods and Programs in Biomedicine
Joseph Hanna, Yeni H Yücel, Xun Zhou, Emily Mathieu, Luz A Paczka-Giorgi, Neeru Gupta
OBJECTIVE: To assess retinal blood vessels in a live retinitis pigmentosa (RP) model with rd1 mutation and green fluorescent protein (GFP) expressed in vascular endothelium. METHODS: Homozygous (hm) Tie2-GFP mice with rd1 mutation and known retinal degeneration were crossed with wild-type CD1 mice to generate control heterozygous (ht) Tie2-GFP mice. The retinas of 16 live hm mice were evaluated at 2 weeks and 3, 5, and 8 months of age, and compared with age-matched control ht and CD1 mice by optical coherence tomography (OCT) and confocal scanning laser ophthalmoscopy (cSLO)...
August 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
Céline E Toutain, Patrick Brossard, Stephen B King, Rainer Helbig
BACKGROUND: Robenacoxib is a non-steroidal anti-inflammatory drug available for canine and feline use for the control of pain and inflammation marketed as Onsior™. The aim of this target animal safety study was to evaluate the 6-month safety profile of oral robenacoxib administration. It was a randomized, negative-controlled, parallel group study. Thirty-two healthy, young, experimentally naïve, purebred Beagle dogs were administered 0 (sham control, Group 1), 2, 6, and 10 mg/kg robenacoxib (corresponding to the upper end of the dosage range [1X, Group 2] and multiples thereof [3X and 5X, Group 3 and 4]), orally once daily for 6 months...
August 17, 2018: BMC Veterinary Research
Laura Barrachina, Ana Rosa Remacha, Antonio Romero, Arantza Vitoria, Jorge Albareda, Marta Prades, Mercedes Roca, Pilar Zaragoza, Francisco José Vázquez, Clementina Rodellar
BACKGROUND: This study aimed at assessing the effectiveness and safety of repeated administrations of allogeneic bone marrow-derived mesenchymal stem cells (BM-MSCs) primed with tumor necrosis factor (TNF)-α and interferon-γ in an equine model of chemically-induced osteoarthritis. Arthritis was induced in both radio-carpal (RC)-joints by amphotericin-B in 18 ponies, divided into three groups depending on the treatment injected: MSC-naïve (n = 7), MSC-primed (n = 7) and control (n = 4)...
August 17, 2018: BMC Veterinary Research
Aida Kahal, Rachida Allem
The importance of the present study comes from the lack of sufficient information about the reversibility of the histopathological alterations which may result from anabolic androgenic drugs abuse after some times of stop treatment, as it is one of the prior studies which explored the negative effects of Deca-Durabolin abuse in particular on the hearts, kidneys and testis structures. For this aim, study was performed on 40 male adult mices. Animals were divided into five groups of 8 animals each as follows: treated by Deca-Durabolin (nandrolone decanoate) at 30 g/kg of BW, weekly during one month (GI); two months (GII); three months (GIII); three months followed by six weeks of treatment discontinuation (GIV) and Control (C)...
July 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Si Zhang, Yanan Liu, Daochun Xiang, Jinyu Yang, Dong Liu, Xiuhua Ren, Chengliang Zhang
5-Fluorouracil (5-FU) is the most frequently prescribed anti-tumor drug, but has been reported to result in intestinal injury. Although some progress has been made in understanding the intestinal toxicity of 5-FU, confusion remains about animal models of 5-FU-induced intestinal injury, especially the dosage of 5-FU. This study aims to assess the dose-response relationship between the severity of intestinal injury and different doses of 5-FU, and to determine a proper dosing for the murine model. We found that mice in the 5-FU groups gradually lost body weight over time...
July 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Amanda Gubert Alves Dos Santos, Lainy Leiny de Lima, Camila Alves Mota, Marcelo Biondaro Gois, Andrea Claudia Bekner Silva Fernandes, Thaís Gomes Verzignassi Silveira, Debora de Mello Gonçales Sant'Ana, Gessilda de Alcântara Nogueira de Melo
AIM: The present study compared and evaluated morphological and quantitative alterations in the ileum of hamsters infected by two L. (V.) braziliensis strains isolated from patients with different lesion aspects and treatment responses. MAIN METHODS: Hamsters were infected in the left hindpaw with a suspension of promastigotes (2 × 107 /100 μl) of two different strains of L. (V.) braziliensis. After 90 or 120 days, the animals were euthanized. Samples of the ileum and mesenteric lymph node were collected for histological examination and quantitative polymerase chain reaction...
July 28, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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