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https://www.readbyqxmd.com/read/27921018/comparison-of-the-protective-effects-of-erythropoietin-and-melatonin-on-renal-ischemia-reperfusion-injury
#1
Shokofeh Banaei, Nasser Ahmadiasl, Alireza Alihemmati
BACKGROUND: Renal ischemia-reperfusion (IR) contributes to the development of acute renal failure (ARF). Oxygen free radicals are considered to be the principal components involved in the pathophysiological tissue alterations observed during renal IR. OBJECTIVES: In this study, we compared the effects of melatonin (MEL) and erythropoietin (EPO), both known antioxidant and anti-inflammatory agents, on IR-induced renal injury in rats. MATERIALS AND METHODS: Wistar albino rats were unilaterally nephrectomized and then subjected to 45 minutes of renal pedicle occlusion followed by 24 hours of reperfusion...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27917338/six-different-extremely-calcified-lesions-of-the-brain-brain-stones
#2
Yurdal Gezercan, Vedat Acik, Gökhan Çavuş, Ali Ihsan Ökten, Emre Bilgin, Hakan Millet, Burak Olmaz
BACKGROUND: This study aimed to extend clinical documentation of cerebral calculi by reporting six cases of cerebral calculi with distinct etiologies and localizations. METHODS: We evaluated the age, sex distribution, presenting symptoms, neurological examination findings, pathology results, and location of the calcifications of six patients with intracranial calcifications. RESULTS: Three of the six patients with brain stones were female (50%), and three were male (50%)...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916624/primary-paranasal-sinus-clear-cell-carcinoma-with-ewsr1-atf1-fusion-report-of-two-molecularly-confirmed-cases-exhibiting-unique-histopathology
#3
Jui Lan, Shun-Chen Huang, Yi-Hsien Chen, Wei-Chih Chen, Ying-Tai Jin, Ying-Chou Lu, Chih-Yen Chien, Hsuan-Ying Huang
Hyalinizing clear cell carcinoma (HCCC) is a rare low-grade tumor of the salivary glands made up of clear cells that form cords and nests in hyalinized stroma. To date, primary HCCCs of the paranasal sinus have not been described. This article presents two cases of HCCC of the maxillary sinus with unusual glandular formation and lymphoplasmacytic stroma in Case 1 and a characteristic solid nest pattern and fibrocellular and hyalinized stroma in Case 2. Immunohistochemical studies excluded myoepithelial origin and sinonasal renal cell-like adenocarcinomas...
December 1, 2016: Human Pathology
https://www.readbyqxmd.com/read/27912101/the-cytoskeleton-architecture-of-algivorous-protoplast-feeders-viridiraptoridae-rhizaria-indicates-actin-guided-perforation-of-prey-cell-walls
#4
Anna Busch, Sebastian Hess
Several distantly related, phagotrophic microeukaryotes share the remarkable ability to perforate foreign cell walls in a well-defined pattern to acquire protoplast material as food. The underlying cellular processes, especially the local application of cell wall degrading agents, are still unexplored. We examined the distribution of F-actin and alpha-tubulin in the algivorous, viridiraptorid amoeboflagellates Orciraptor agilis and Viridiraptor invadens over their life histories using phalloidin conjugates and immunolocalization...
October 31, 2016: Protist
https://www.readbyqxmd.com/read/27905816/cementocyte-cell-death-occurs-in-rat-cellular-cementum-during-orthodontic-tooth-movement
#5
Humihiro Matsuzawa, Naoko Toriya, Yuya Nakao, Moe Konno-Nagasaka, Toshiya Arakawa, Miki Okayama, Itaru Mizoguchi
OBJECTIVE: To clarify the mechanism of root resorption during orthodontic treatment, we examined cementocyte cell death and root resorption in the cellular cementum on the pressure side during experimental tooth movement. MATERIALS AND METHODS: Using 8-week-old male Wistar rats, the right first molar was pushed mesiobuccally with a force of 40 g by a Ni-Ti alloy wire while the contralateral first molar was used as a control. Localization and number of cleaved caspase-3-positive and single-stranded DNA (ssDNA) - positive cells were evaluated using dual-label immunohistochemistry with anticleaved caspase-3 and anti-ssDNA antibodies...
December 1, 2016: Angle Orthodontist
https://www.readbyqxmd.com/read/27904119/an-autopsy-case-of-amyotrophic-lateral-sclerosis-with-diaphragm-pacing
#6
Hisashi Ito, Tetsumasa Kamei, Sanae Odake, Masayuki Nakano, Riki Okeda, Shunsaku Kohriki, Jun Kawachi, Raymond P Onders, Fumihito Yoshii
Respiratory insufficiency is a critical problem in amyotrophic lateral sclerosis (ALS) patients. We herein present the case of an autopsied patient with sporadic ALS who underwent diaphragm pacing (DP). The pathology showed several localized adhesions with a markedly atrophied diaphragm. A marked loss of motor neurons with Bunina bodies and phosphorylated TDP-43 positive inclusions was found in the spinal cord and primary motor cortex. Mild hyalinization and a few multinucleated giant cells were present around the electrode tracks in the diaphragm...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27900487/lipoid-proteinosis-unveiled-by-oral-mucosal-lesions-a-comprehensive-analysis-of-137-cases
#7
Boaz Frenkel, Marilena Vered, Shlomo Taicher, Noam Yarom
OBJECTIVES: Lipoid proteinosis (LP) is a rare autosomal recessive disorder characterized by deposits of hyaline material within skin and mucous membranes of the upper aerodigestive tract, especially the vocal cords. We aimed to investigate possible associations between oral LP (oLP) manifestations and demographic data and extra-oral lesions. MATERIAL AND METHODS: Cases of oLP were collected following a systematic search of Medline's PubMed and Google Scholar (1948-2014)...
November 29, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27898268/descriptive-analysis-of-in-vitro-cutting-of-swine-mitral-cusps-comparison-of-high-power-laser-and-scalpel-blade-cutting-techniques
#8
Nathali Cordeiro Pinto, Pablo Maria Alberto Pomerantzeff, Alessandro Deana, Denise Zezell, Carolina Benetti, Vera Demarchi Aiello, Luciana Almeida Lopes, Fabio Biscegli Jatene, M Cristina Chavantes
BACKGROUND AND OBJECTIVES: The most common injury to the heart valve with rheumatic involvement is mitral stenosis, which is the reason for a big number of cardiac operations in Brazil. Commissurotomy is the traditional technique that is still widely used for this condition, although late postoperative restenosis is concerning. This study's purpose was to compare the histological findings of porcine cusp mitral valves treated in vitro with commissurotomy with a scalpel blade to those treated with high-power laser (HPL) cutting, using appropriate staining techniques...
November 30, 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27898192/reappraising-hyalinizing-clear-cell-carcinoma-a-population-based-study-with-molecular-confirmation
#9
Juan C Hernandez-Prera, Ricky Kwan, Joseph Tripodi, Simion Chiosea, Carlos Cordon-Cardo, Vesna Najfeld, Elizabeth G Demicco
BACKGROUND: Hyalinizing clear cell carcinoma (HCCC) is a rare malignancy, characterized by EWSR1-ATF1 gene fusion, whose behavior is poorly understood, as it was for many years considered a diagnosis of exclusion. METHODS: All available salivary gland carcinomas (n = 594) from our institution were reviewed. Diagnosis of HCCC was confirmed by fluorescence in situ hybridization (FISH) for EWSR1. Literature review was performed. RESULTS: We found 15 patients with HCCCs (10 women, 5 men), 13 with EWSR1 rearrangement...
November 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/27896393/degree-of-tendon-degeneration-and-stage-of-rotator-cuff-disease
#10
Chris Hyunchul Jo, Won Hyoung Shin, Ji Wan Park, Ji Sun Shin, Ji Eun Kim
PURPOSE: While tendon degeneration has been known to be an important cause of rotator cuff disease, few studies have objectively proven the association of tendon degeneration and rotator cuff disease. The purpose of this study was to investigate changes of tendon degeneration with respect to the stage of rotator cuff disease. METHODS: A total of 48 patients were included in the study: 12 with tendinopathy, 12 with a partial-thickness tear (pRCT), 12 with a full-thickness tear (fRCT), and 12 as the control...
November 28, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27894620/clinical-implications-of-a-rare-renal-entity-pleomorphic-hyalinizing-angiectatic-tumor-phat
#11
Cristina Scalici Gesolfo, Vincenzo Serretta, Fabrizio Di Maida, Giulio Giannone, Elisabetta Barresi, Vito Franco, Rodolfo Montironi
Pleomorphic Hyalinizing Angiectatic Tumor (PHAT) is a rare benign lesion characterized by slow growth, infiltrative behavior and high rate of local recurrences. Only one case has been described in retroperitoneum, at renal hilum, but not involving pelvis or parenchyma. Here we present the first case of PHAT arising in the renal parenchyma. A nodular lesion in right kidney lower pole was diagnosed to a 61 year old woman. The patient underwent right nephrectomy. Microscopically, the lesion showed solid and pseudo-cystic components with hemorrhagic areas characterized by aggregates of ectatic blood vessels...
November 17, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27885796/hepatocellular-carcinomas-with-intracellular-hyaline-bodies-have-a-poor-prognosis
#12
Ariane Aigelsreiter, Jens Neumann, Martin Pichler, Judith Halasz, Kurt Zatloukal, Andrea Berghold, Philipp Douschan, Florian Rainer, Rudolf Stauber, Johannes Haybaeck, Helmut Denk, Carolin Lackner
BACKGROUND & AIMS: Mallory-Denk-bodies (MDB) and intracellular hyaline bodies (IHB) are cytoplasmic inclusions found in a subset of hepatocellular carcinoma (HCC). MDB are mainly composed of the intermediate filament proteins keratin (K) 8 and K18, the cellular stress- and adapter-protein sequestosome 1/p62 (p62) and ubiquitin, whereas IHB consist of p62 and/or ubiquitin. Of note, cytoplasmic inclusions containing p62 can serve as markers of suppressed autophagy which in turn has been associated with poor prognosis...
November 25, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27885296/outcome-of-twin-deliveries-at-a-tertiary-care-centre-of-eastern-nepal
#13
S Chaudhary, R R Singh, G S Shah, J Agrawal, S Kafle, L Shah
BACKGROUND: Twins, compared to singletons, have higher perinatal mortality and morbidity. The aim of this study was to describe the twinning rate, epidemiological variables and hospital outcome of twin deliveries and to find out ways of better management of twins in our part. METHODS: A retrospective evaluation of the outcome of 92 twin pregnancies during one year study period (1st January 2014 to 31st December 2014) was conducted at BPKIHS. Twins delivered within the institution were included but cases less than 28 weeks gestation were excluded...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27877046/comparative-effect-and-safety-of-verapamil-in-keloid-and-hypertrophic-scar-treatment-a-meta-analysis
#14
Zhouna Li, Zhehu Jin
BACKGROUND: Keloids and hypertrophic scars are the most common types of pathological scarring. Traditionally, keloids have been considered as a result of aberrant wound healing, involving excessive fibroblast participation that is characterized by hyalinized collagen bundles. However, the usefulness of this characterization has been questioned. In recent years, studies have reported the appropriate use of verapamil for keloids and hypertrophic scars. METHODS: Searches were conducted on the databases Medline, Embase, Cochrane, PubMed, and China National Knowledge Infrastructure from 2006 to July 2016...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27872718/histoanatomical-study-of-the-lens-and-ciliary-body-in-ostrich-eye
#15
Mohammad Ali Ebrahimi Saadatlou, Ebrahimi Saadatlou Shahrouz
In the present study, the lenses and ciliary bodies of 20 ostrich eyes were studied macroscopically and microscopically. The histological slides were studied after staining by hematoxylin and eosin, Verhoeff, Van Gieson, and periodic acid-Schiff (PAS). Posterior surface of lens was more convex than its anterior surface. The average lens diameter and thickness were respectively measured as 1.43 ± 0.00 and 0.85 ± 0.00 cm. The average ciliary body thickness was measured as 1.48 ± 0.01 cm. In addition, the ciliary body was seen annular with mean horizontal and vertical external diameters as 4...
2016: Veterinary Research Forum
https://www.readbyqxmd.com/read/27869449/-diffuse-tenosynovial-giant-cell-tumor-of-the-cervical-spine-destroying-vertebra-c6-a%C3%A2-case-report
#16
Zdeněk Kinkor, Tomáš Svoboda, Petr Grossman, David Bludovský, Filip Heidenreich, Andrej Švec, Iveta Mečiarová
Presented is a case of 59-year-old woman with longstanding neck pain who has been promptly operated for spinal cord compression. Imaging studies disclosed ill-defined cervical paravertebral soft tissue mass at the level of vertebra C5/6 abutting left-sided intervertebral joint and destroying neighboring both vertebral arch and processus spinosus. Submitted specimen was interpreted as a possible metastatic skeletal process by clinicians and referring pathologist favored diagnosis of giant cell tumor/osteoclastoma of the bone...
2016: Ceskoslovenská Patologie
https://www.readbyqxmd.com/read/27869187/a-new-species-of-trichoderma-hypoxylon-harbours-abundant-secondary-metabolites
#17
Jingzu Sun, Yunfei Pei, Erwei Li, Wei Li, Kevin D Hyde, Wen-Bing Yin, Xingzhong Liu
Some species of Trichoderma are fungicolous on fungi and have been extensively studied and commercialized as biocontrol agents. Multigene analyses coupled with morphology, resulted in the discovery of T. hypoxylon sp. nov., which was isolated from surface of the stroma of Hypoxylon anthochroum. The new taxon produces Trichoderma- to Verticillium-like conidiophores and hyaline conidia. Phylogenetic analyses based on combined ITS, TEF1-α and RPB2 sequence data indicated that T. hypoxylon is a well-distinguished species with strong bootstrap support in the polysporum group...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27864704/a-clinicopathologic-study-of-extraventricular-neurocytoma
#18
Li Xu, Zhaolian Ouyang, Junmei Wang, Zhaoxia Liu, Jingyi Fang, Jiang Du, Yanjiao He, Guilin Li
In 2007, extraventricular neurocytoma was classified as a separate entity among glioneuronal tumors. However, extraventricular neurocytoma is not fully understood and may be misdiagnosed. Here, we describe the clinical and pathological features, prognoses, and treatments of 13 extraventricular neurocytoma cases, and compare their immunophenotypes with those of oligodendroglioma, diffuse astrocytoma, and ependymoma. Six typical and 7 atypical cases comprised the 13 extraventricular neurocytoma cases. Histological features included oligodendroglioma-like perinuclear halo, neuropil-like matrix, ganglion or ganglioid cells, perivascular pseudorosettes, vessel hyalinization, calcifications, and myxoid degeneration...
November 18, 2016: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27864122/sclerosing-tfeb-rearrangement-renal-cell-carcinoma-a-recurring-histologic-pattern
#19
Sean R Williamson, John N Eble, Nallasivam Palanisamy
Renal cell carcinoma with TFEB rearrangement [t(6;11)(p21;q13)] was initially recognized to be composed of dual populations of large cells with clear cytoplasm and small cells forming rosettes around hyaline material. With increasing awareness, however, the spectrum of described morphology has been found to be more heterogeneous. We report a 54 year-old woman who underwent partial nephrectomy for a 2.4 cm renal mass, composed of fibrosis, hyalinization, calcification and ossification, and a smaller component of epithelioid cells...
November 15, 2016: Human Pathology
https://www.readbyqxmd.com/read/27861869/s100b%C3%A2-%C3%A2-a1-celisa-a-novel-potency-assay-and-screening-tool-for-redifferentiation-stimuli-of-human-articular-chondrocytes
#20
Jose Diaz-Romero, Sibylle Kürsener, Sandro Kohl, Dobrila Nesic
During monolayer expansion, a necessary step in autologous chondrocyte implantation, human articular chondrocytes (HAC) dedifferentiate and lose their capacity to produce stable hyaline cartilage. Determining HAC potency and learning how to trigger their redifferentiation would improve cell-based cartilage regeneration therapies. We previously identified S100B and S100A1 proteins as markers of HAC redifferentiation potential. Here, we aimed to: (i) demonstrate a correlation between S100B + A1-positive HAC in monolayer culture and their neochondrogenesis capacity in pellet culture; (ii) develop an S100B + A1 cell-based ELISA, and (iii) prove that S100B + A1 induction in HAC increases their chondrogenic capacity...
November 11, 2016: Journal of Cellular Physiology
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