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histopathology,pathology

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https://www.readbyqxmd.com/read/28924575/ex-vivo-tissue-imaging-for-radiology-pathology-correlation-a-pilot-study-with-a-small-bore-7-t-mri-in-a-rare-pigmented-ganglioglioma-exhibiting-complex-mr-signal-characteristics-associated-with-melanin-and-hemosiderin
#1
Kant M Matsuda, Ana Lopes-Calcas, Michael L Honke, Zoe O'Brien-Moran, Richard Buist, Michael West, Melanie Martin
To advance magnetic resonance imaging (MRI) technologies further for in vivo tissue characterization with histopathologic validation, we investigated the feasibility of ex vivo tissue imaging of a surgically removed human brain tumor as a comprehensive approach for radiology-pathology correlation in histoanatomically identical fashion in a rare case of pigmented ganglioglioma with complex paramagnetic properties. Pieces of surgically removed ganglioglioma, containing melanin and hemosiderin pigments, were imaged with a small bore 7-T MRI scanner to obtain T1-, T2-, and T2*-weighted image and diffusion tensor imaging (DTI)...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28924108/proton-pump-inhibitor-induction-of-gastric-cobblestone-like-lesions-in-the-stomach
#2
Kosuke Takahari, Ken Haruma, Hiroshi Ohtani, Sho Kiyoto, Akifumi Watanabe, Tomoari Kamada, Noriaki Manabe, Yu Hatano
Objective The long-term use of proton pump inhibitors (PPIs) may induce adverse events in many organs, including the stomach. The chronic use of PPIs has been associated with the growth of fundic gland polyps (FGPs) and of gastric black spots. This study assessed the incidence of gastric lesions with cobblestone-like appearance in PPI users. Methods The clinical characteristics and endoscopic findings of patients who underwent upper gastrointestinal endoscopy after using PPIs for at least six months were analyzed...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28923958/multiscale-characterization-of-the-mineral-phase-at-skeletal-sites-of-breast-cancer-metastasis
#3
Frank He, Aaron E Chiou, Hyun Chae Loh, Maureen Lynch, Bo Ri Seo, Young Hye Song, Min Joon Lee, Rebecca Hoerth, Emely L Bortel, Bettina M Willie, Georg N Duda, Lara A Estroff, Admir Masic, Wolfgang Wagermaier, Peter Fratzl, Claudia Fischbach
Skeletal metastases, the leading cause of death in advanced breast cancer patients, depend on tumor cell interactions with the mineralized bone extracellular matrix. Bone mineral is largely composed of hydroxyapatite (HA) nanocrystals with physicochemical properties that vary significantly by anatomical location, age, and pathology. However, it remains unclear whether bone regions typically targeted by metastatic breast cancer feature distinct HA materials properties. Here we combined high-resolution X-ray scattering analysis with large-area Raman imaging, backscattered electron microscopy, histopathology, and microcomputed tomography to characterize HA in mouse models of advanced breast cancer in relevant skeletal locations...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923616/histopathologic-findings-of-potential-kidney-donors-with-asymptomatic-microscopic-hematuria-impact-on-donation
#4
E A Hassan, T Z Ali, A Abdulbaki, I A Ibrahim, H M Almanae, H A Aleid
INTRODUCTION: Isolated microscopic hematuria (IMH) is not uncommon in potential kidney donors. AIM: The aim was to study the kidney biopsy findings of potential kidney donors with IMH and the impact of the histopathologic diagnoses on the decision to accept or decline such donors from kidney donation. METHODS: In this retrospective study, all the potential kidney donors with IMH were identified from the medical records of patients who underwent kidney biopsies between January 2010 and December 2016...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923272/the-spectrum-of-oral-lesions-presenting-clinically-with-papillary-verrucous-features
#5
Sara Whitefield, Vadim Raiser, Amir Shuster, Shlomi Kleinman, Benjamin Shlomi, Ilana Kaplan
PURPOSE: We sought to study the spectrum of oral pathologies presenting clinically with papillary-verrucous features. MATERIALS AND METHODS: A 10-year (2007 to 2016) retrospective study of oral papillary lesions was undertaken. All biopsy reports that included a clinical description of papillary or verrucous architecture were retrieved. The data collected included clinical features, size, color, location, histopathologic diagnosis, age, and gender. RESULTS: The study included 137 patients, with a total of 151 lesions...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28922365/isothiocyanate-enriched-moringa-seed-extract-alleviates-ulcerative-colitis-symptoms-in-mice
#6
Youjin Kim, Alex G Wu, Asha Jaja-Chimedza, Brittany L Graf, Carrie Waterman, Michael P Verzi, Ilya Raskin
Moringa (Moringa oleifera Lam.) seed extract (MSE) has anti-inflammatory and antioxidant activities. We investigated the effects of MSE enriched in moringa isothiocyanate-1 (MIC-1), its putative bioactive, on ulcerative colitis (UC) and its anti-inflammatory/antioxidant mechanism likely mediated through Nrf2-signaling pathway. Dextran sulfate sodium (DSS)-induced acute (n = 8/group; 3% DSS for 5 d) and chronic (n = 6/group; cyclic rotations of 2.5% DSS/water for 30 d) UC was induced in mice that were assigned to 4 experimental groups: healthy control (water/vehicle), disease control (DSS/vehicle), MSE treatment (DSS/MSE), or 5-aminosalicyic acid (5-ASA) treatment (positive control; DSS/5-ASA)...
2017: PloS One
https://www.readbyqxmd.com/read/28920815/preliminary-characterization-of-dilated-cardiomyopathy-in-a-captive-population-of-banded-mongooses-mungos-mungo
#7
Javier López, Joanna Dukes-McEwan, Gabby Drake, Julian Chantrey
Between 2006 and 2015, a high incidence of dilated cardiomyopathy (DCM) was diagnosed in a captive population of banded mongooses (Mungos mungo) at Chester Zoo, United Kingdom. The aim of this study was to characterize DCM in these mongooses in order to raise awareness of this condition and help inform management and clinical decisions. Prospective clinical assessments, including echocardiography, radiography, and cardiac biomarkers, were carried out in four mongooses remaining in the collection. Radiographs from 15 mature mongooses were reviewed and cardiac size and metrics assessed...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920482/fowl-aviadenovirus-serotype-1-confirmed-as-the-aetiological-agent-of-gizzard-erosions-in-replacement-pullets-and-layer-flocks-in-great-britain-by-laboratory-and-in-vivo-studies
#8
Beatrice Grafl, Cristina Garcia-Rueda, Peter Cargill, Alisdair Wood, Alex Schock, Dieter Liebhart, Anna Schachner, Michael Hess
An investigation into the aetiology and pathogenesis of adenoviral gizzard erosion has been conducted following three natural outbreaks affecting one flock of 6-week-old replacement pullets and two consecutive placements of free range layers at the age of 21 and 23 weeks. Affected flocks showed increased mortality (0.12-0.30% per week), and gizzard lesions were consistent with fowl aviadenovirus (FAdV) involvement. To substantiate the initial findings, a selection of archived formalin-fixed paraffin-embedded gizzard samples from another 12 pullet and layer flocks, for which macroscopic and histopathological diagnosis of the disease were recorded in Great Britain during the period 2009-2016, were also investigated...
September 18, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28919620/role-of-serum-pepsinogen-i-and-ii-ratio-in-screening-of-gastric-carcinoma
#9
A Begum, M A Baten, Z Begum, M M Ahsan, S F Rahman, F Chowdhury, A H Khan
In spite of the global decline in its incidence and mortality, gastric carcinoma still remains a major cause of death due to cancer. Early detection of gastric carcinoma is expected to reduce mortality rates. The applications of measuring of pepsinogen I and pepsinogen II are useful in screening of gastric carcinoma. This cross sectional comparative study was done to find out the correlation of histopathological pattern of gastric carcinoma with serum pepsinogen I & II ratio in the Department of Pathology, Sylhet MAG Osmani Medical College, Sylhet, Bangladesh from January 2010 to December 2010...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919602/comparative-study-of-cytology-and-histopathology-of-cervical-lesion-in-via-positive-patients-and-its-correlation-with-high-risk-human-papilloma-virus
#10
N P Ansari, F M Saleh, S M Shahida, E N Rahman
Cervical cancer is the second most frequent type of cancer and leading cause of mortality among women worldwide. The present study was undertaken to assess precancerous and cancerous cervical lesion by cytology as well as HPV DNA identification and their comparison with histopathology in VIA positive cases. This descriptive, cross-sectional type of observational study was carried out in the Department of Pathology, Mymensingh Medical College in collaboration with the Department of Gynecology and Obstetrics, Mymensingh Medical College Hospital and Department of Microbiology and Hygiene in Bangladesh Agriculture University for HPV DNA detection from July 2012 to June 2013...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28919595/a-case-of-hepatorenal-syndrome-and-abdominal-compartment-syndrome-with-high-renal-congestion
#11
Hiroteru Kamimura, Takayuki Watanabe, Tomoyuki Sugano, Nao Nakajima, Junji Yokoyama, Kenya Kamimura, Atsunori Tsuchiya, Masaaki Takamura, Hirokazu Kawai, Takashi Kato, Gen Watanabe, Satoshi Yamagiwa, Shuji Terai
BACKGROUND Hepatorenal syndrome (HRS) is a reversible renal impairment that occurs in patients with acute liver failure and advanced liver cirrhosis. HRS is due to a renal vasoconstriction that results from extreme vasodilatation. It is therefore a functional disorder, not associated with structural kidney damage. On the other hand, end-stage liver diseases are often complicated by massive ascites. Massive ascites may cause abdominal compartment syndrome (ACS), which includes impairment of renal blood flow, but there are no reports indicating that kidney lesions caused by ACS may pathologically contribute to end-stage liver diseases...
September 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28919547/deep-sequencing-to-resolve-complex-diversity-of-apicomplexan-parasites-in-platypuses-and-echidnas-proof-of-principle-for-wildlife-disease-investigation
#12
Jan Šlapeta, Stefan Saverimuttu, Larry Vogelnest, Cheryl Sangster, Frances Hulst, Karrie Rose, Paul Thompson, Richard Whittington
The short-beaked echidna (Tachyglossus aculeatus) and the platypus (Ornithorhynchus anatinus) are iconic egg-laying monotremes (Mammalia: Monotremata) from Australasia. The aim of this study was to demonstrate the utility of diversity profiles in disease investigations of monotremes. Using small subunit (18S) rDNA amplicon deep-sequencing we demonstrated the presence of apicomplexan parasites and confirmed by direct and cloned amplicon gene sequencing Theileria ornithorhynchi, Theileria tachyglossi, Eimeria echidnae and Cryptosporidium fayeri...
September 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28917943/chronic-fluoride-exposure-exacerbates-headkidney-pathology-and-causes-immune-commotion-in-clarias-gariepinus
#13
Rashmi Singh, Md Arafat Hussain, Jai Kumar, Manmohan Kumar, Usha Kumari, Shibnath Mazumder
The current study was aimed to understand the effects of chronic fluoride exposure on fish immune system. African sharp tooth catfish (Clarias gariepinus) were exposed to 73.45mg/L of fluoride corresponding to 1/10 96h LC50 for 30 d and the effects on general fish health and several immune parameters were studied. Chronic fluoride exposure led to significant alteration in serum biochemical parameters including alkaline phosphatase, alanine transaminase, aspartate transaminase, triglycerides, cholesterol and blood urea nitrogen levels revealing the detrimental effect of fluoride on general fish health...
September 6, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28917718/olfactory-toxicity-in-rats-following-manganese-chloride-nasal-instillation-a-pilot-study
#14
Melanie L Foster, Deepa B Rao, Taylor Francher, Samantha Traver, David C Dorman
Following inhalation, manganese travels along the olfactory nerve from the olfactory epithelium (OE) to the olfactory bulb (OB). Occupational exposure to inhaled manganese is associated with changes in olfactory function. This pilot study evaluated two related hypotheses: (a) intranasal manganese administration increases OE and OB manganese concentrations; and (b) intranasal manganese exposure impairs performance of previously trained rats on a go-no-go olfactory discrimination (OD) task. Male Fischer 344 rats were trained to either lever press ("go") in response to a positive conditioned stimulus (CS+: vanillin) or to do nothing ("no go") when a negative conditioned stimulus (CS-: amyl acetate) was present...
September 13, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28917550/antidiabetic-potential-of-methanolic-and-flavonoid-rich-leaf-extracts-of-synsepalum-dulcificum-in-type-2-diabetic-rats
#15
Olabisi T Obafemi, Clement A Akinmoladun, Tolulope M Olaleye, Stephen O Agboade, Amos A Onasanya
BACKGROUND: Synsepalum dulcificum is a plant indigenous to West Africa. The fruit is used to modify taste of foods to sweetness. OBJECTIVES: This study aims to investigate the antidiabetic potentials of both methanolic and flavonoid-rich leaf extracts of S. dulcificum (MSD and FSD respectively) in type 2 diabetic Wistar albino rats. MATERIALS AND METHODS: Sixty three rats were randomly distributed into nine groups of seven animals each with group 1 serving as the normal control...
September 13, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28916318/matrix-metalloproteinases-2-and-9-in-campylobacter-jejuni-induced-paralytic-neuropathy-resembling-guillain-barr%C3%A3-syndrome-in-chickens
#16
Kishan Kumar Nyati, Kashi Nath Prasad, Vinita Agrawal, Nuzhat Husain
Inflammation in Guillain-Barré syndrome (GBS) is manifested by changes in matrix metalloproteinase (MMP) and pro-inflammatory cytokine expression. We investigated the expression of MMP-2, -9 and TNF-α and correlated it with pathological changes in sciatic nerve tissue from Campylobacter jejuni-induced chicken model for GBS. Campylobacter jejuni and placebo were fed to chickens and assessed for disease symptoms. Sciatic nerves were examined by histopathology and immunohistochemistry. Expressions of MMPs and TNF-α, were determined by real-time PCR, and activities of MMPs by zymography...
September 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28915670/prostate-cancer-diagnosis-using-epigenetic-biomarkers-3d-high-content-imaging-and-probabilistic-cell-by-cell-classifiers
#17
Darko Stefanovski, George Tang, Kolja Wawrowsky, Raymond C Boston, Nils Lambrecht, Jian Tajbakhsh
BACKGROUND: Prostate cancer (PCa) management can benefit from novel concepts/biomarkers for reducing the current 20-30% chance of false-negative diagnosis with standard histopathology of biopsied tissue. METHOD: We explored the potential of selected epigenetic markers in combination with validated histopathological markers, 3D high-content imaging, cell-by-cell analysis, and probabilistic classification in generating novel detailed maps of biomarker heterogeneity in patient tissues, and PCa diagnosis...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915318/applications-of-high-resolution-magic-angle-spinning-mrs-in-biomedical-studies-ii-human-diseases
#18
REVIEW
Christopher Dietz, Felix Ehret, Francesco Palmas, Lindsey A Vandergrift, Yanni Jiang, Vanessa Schmitt, Vera Dufner, Piet Habbel, Johannes Nowak, Leo L Cheng
High-resolution magic angle spinning (HRMAS) MRS is a powerful method for gaining insight into the physiological and pathological processes of cellular metabolism. Given its ability to obtain high-resolution spectra of non-liquid biological samples, while preserving tissue architecture for subsequent histopathological analysis, the technique has become invaluable for biochemical and biomedical studies. Using HRMAS MRS, alterations in measured metabolites, metabolic ratios, and metabolomic profiles present the possibility to improve identification and prognostication of various diseases and decipher the metabolomic impact of drug therapies...
September 15, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28913933/diagnostic-accuracy-of-fnac-and-cyto-histopathological-correlation-in-testicular-and-paratesticular-mass-lesions
#19
A D Singh, F A Wani, S Bhardwaj
OBJECTIVE: FNAC has a definitive role and has proved extremely useful in diagnosis of testicular and paratesticular mass lesions. In view of the dearth of literature of studies involving large cohorts of patients, the present study describes at length the detailed cytological evaluation of testicular and paratesticular mass lesions. METHODS: Our study consisted of 85 cases in 5-year retrospective and 1-year prospective analyses carried out in the Department of Pathology, Government Medical College, Jammu...
September 15, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28913640/case-report-of-kummell-s-disease-with-delayed-onset-myelopathy-and-the-literature-review
#20
REVIEW
Salvatore D'Oria, Carlo Delvecchio, Mariagrazia Dibenedetto, Francesco Zizza, Carlo Somma
INTRODUCTION: Kummell's disease is an avascular necrosis of the vertebral body, secondary to a vertebral compression fracture. This entity is characterised by the gradual development in time of a vertebral body collapse following a trivial spinal trauma, involving a worsening back pain associated with a progressive kyphosis. PURPOSES: The aim of this article is to carry out an international literature review regarding Kummell's disease, addressing its physiopathology, histopathology, clinical presentation, radiological characteristics and treatment modalities; at the same time, the literature is updated through the description of a new and interesting case, symbol of the pathology long-term potential complications, if not diagnosed and therefore not suitably treated...
September 14, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
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