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https://www.readbyqxmd.com/read/28550086/the-iron-dependent-mitochondrial-superoxide-dismutase-soda-promotes-leishmania-virulence
#1
Bidyottam Mittra, Maria Fernanda Laranjeira-Silva, Danilo Ciccone Miguel, Juliana Perrone Bezerra de Menezes, Norma W Andrews
Leishmaniasis is one of the leading global neglected diseases, affecting millions of people worldwide. Leishmania infection depends on the ability of insect-transmitted metacyclic promastigotes to invade mammalian hosts, differentiate into amastigotes and replicate inside macrophages. To counter the hostile oxidative environment inside macrophages, these protozoans contain anti-oxidant systems that include iron-dependent superoxide dismutases (SODs) in mitochondria and glycosomes. Increasing evidence suggests that in addition to this protective role, Leishmania mitochondrial SOD may also initiate H2O2-mediated redox signaling that regulates gene expression and metabolic changes associated with differentiation into virulent forms...
May 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28549413/external-magnetic-field-promotes-homing-of-magnetized-stem-cells-following-subcutaneous-injection
#2
Yu Meng, Changzhen Shi, Bo Hu, Jian Gong, Xing Zhong, Xueyin Lin, Xinju Zhang, Jun Liu, Cong Liu, Hao Xu
BACKGROUND: Mesenchymal stem cells (MSCs) are multipotent stromal cells that have the ability to self-renew and migrate to sites of pathology. In vivo tracking of MSCs provides insights into both, the underlying mechanisms of MSC transformation and their potential as gene delivery vehicles. The aim of our study was to assess the ability of superparamagnetic iron oxide nanoparticles (SPIONs)-labeled Wharton's Jelly of the human umbilical cord-derived MSCs (WJ-MSCs) to carry the green fluorescent protein (GFP) gene to cutaneous injury sites in a murine model...
May 26, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28549358/-complication-analysis-in-lisfranc-fracture-dislocation
#3
R J García-Renedo, A Carranza-Bencano, R Leal-Gómez, F Cámara-Arrigunaga
OBJECTIVE: To value the complications and sequels for patients with Lisfrancs fracture-luxation (FLL). MATERIAL AND METHODS: A transverse ambispective study of cohorts was realized of 83 patients by diagnosis of Lisfrancs fracture-luxation. There was in use a protocol of withdrawal of information with variables related to the injury, clinical, therapeutic parameters, complications and scales of clinical valuation. RESULTS: 66 patients (79...
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549147/prevalence-and-concordance-of-cutaneous-beta-human-papillomavirus-infection-at-mucosal-and-cutaneous-sites
#4
Shalaka S Hampras, Dana E Rollison, Anna R Giuliano, Sandrine McKay-Chopin, Lucia Minoni, Karen Sereday, Tarik Gheit, Massimo Tommasino
Background: Cutaneous beta human papillomavirus (HPV) infection across cutaneous and mucosal tissues within individuals has not been examined. Methods: A sub-cohort of men (n=87) participating in the 'HPV infection in men' (HIM) study provided eyebrow hairs, forearm skin swabs, genital skin swabs, oral rinse samples and anal swabs. Beta HPV DNA in the five tissues was detected using a multiplex assay and site-specific beta HPV prevalence was examined. Results: Any beta HPV was most prevalent in genital skin (81...
May 26, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28549035/expression-of-ki-67-and-estrogen-receptor-beta-in-primary-cutaneous-melanoma-as-a-potential-indicator-of-regional-lymph-node-positivity
#5
Dalma Udovicic-Gagula, Amina Ahmovic, Nurija Bilalovic, Mirsad Doric
In the early stages of cutaneous malignant melanoma (MM), it is extremely difficult to predict adequately the risk from hematogenic and lymphatic metastasis. We investigate whether the immunohistochemical expression of Ki-67 and estrogen receptor beta (ERβ) in cells of MM could predict the status of regional lymph nodes. A total of 55 tissue samples of primary cutaneous melanomas with known status of regional lymph nodes were retrospectively evaluated for Ki-67 and ERβ expression by quantitative immunohistochemistry and then correlated with the status of regional lymph nodes and relevant clinicopathologic parameters...
May 25, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28548901/neuroendocrine-differentiation-in-basal-cell-carcinoma
#6
Yoldez Houcine, Ines Chelly, Alia Zehani, Linda Belhaj Kacem, Haifa Azzouz, Wafa Rekik, Hend C, Slim Haouet, Nidhameddine Kchir
Basal cell carcinoma (BCC) is the prototypical basaloid tumour of the skin. It may show various patterns simulating other cutaneous tumours due to its pleomorphism. It may have unusal pattern of differentiaton such as squamous, sebaceous, apocrine, eccrine, pilar and endocrine differentiation. In order to establish the relative frequency of neuroendocrine differentiation in BCC, we performed a retrospective study of 33 consecutive BCCs using conventional immunohistochemistry with two neuroendocrine antibodies: Chromogranine A and synaptophysine...
May 26, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28547875/primary-cutaneous-b-cell-lymphoblastic-lymphoma-arising-from-a-long-standing-lesion-in-a-child-and-review-of-the-literature
#7
Hannah Song, Patricia Todd, Roberto Chiarle, Amy L Billett, Stephen Gellis
Precursor B-cell lymphoblastic lymphoma (B-LBL) is a rare entity and primary cutaneous B-LBL is an even more uncommon diagnosis that typically affects children. A 4-year-old boy presented with a persistent rash on his left cheek for almost 2 years and was found to have primary cutaneous B-LBL. We report this case to emphasize that B-LBL should be in the differential diagnosis for an otherwise unimpressive persistent lesion in the head and neck region and review all reported pediatric cases of primary cutaneous B-LBL without extracutaneous involvement...
May 26, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28547757/lymphocytic-thrombophilic-arteritis-a-possible-association-with-minocycline
#8
Colin W X Tan, Mark J A Koh
We describe a case of lymphocytic thrombophilic arteritis in a 15-year-old girl who had previously taken minocycline for a year. Cutaneous polyarteritis nodosa and lymphocytic thrombophilic arteritis share many features and may both be triggered by minocycline. There may be a long latency between drug exposure to minocycline and development of disease.
May 26, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28547523/cutaneous-manifestations-of-medium-and-large-vessel-vasculitis
#9
REVIEW
Francois Chasset, Camille Francès
Dermatologic manifestations are observed in almost all systemic vasculitides, even in large-and medium-vessel vasculitides, although such vessels are not found in the skin. Cutaneous manifestations may be related to a direct skin localization of the systemic vasculitis or a non-specific process associated with the vasculitis. According to the 2012 International Chapel Hill consensus, the two major variants of large-vessel vasculitides are Takayasu arteritis and giant-cell arteritis. In Europe and North America, acute inflammatory nodules or erythema nodosum-like lesions are the most commonly observed skin lesions with Takayasu arteritis...
May 26, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28547342/trichosporon-asteroides-isolated-from-cutaneous-lesions-of-a-suspected-case-of-paracoccidioidomycosis-ceti-in-a-bottlenose-dolphin-tursiops-truncatus
#10
Keiichi Ueda, Ichiro Nakamura, Eiko Nakagawa Itano, Kazunori Takemura, Yasutomo Nakazato, Ayako Sano
"Paracoccidioidomycosis ceti" is a rare zoonotic fungal infection affecting dolphins and is endemic worldwide. The causative agents are Paracoccidioides species; however, it is impossible to isolate the fungal species. We isolated Trichosporon asteroides from multifocal, irregularly raised skin lesions on a female bottlenose dolphin (Tursiops truncatus) captured off coast of Japan, which was suspected to have "paracoccidioidomycosis ceti." An abundance of round, yeast-like cells was detected in a potassium hydroxide direct-mount specimen of the skin samples; however, nested PCR targeting the partial sequence of 43-kDa glycoprotein-coding gene correspondent to Paracoccidioides sp...
May 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28546693/disseminated-rhinosporidiosis-with-conjunctival-involvement-in-an-immunocompromised-patient
#11
Deepa John, Satheesh S T Selvin, Aparna Irodi, Pushpa Jacob
Rhinosporidiosis is a granulomatous infection of mucocutaneous tissue caused by Rhinosporidium seeberi that most commonly occurs in the nasal cavity. Ocular rhinosporidiosis affects primarily the conjunctiva. Diagnosis of rhinosporidiosis is based on strong clinical suspicion and is confirmed by histopathological examination. We report a rare case of conjunctival rhinosporidiosis in an immunocompromised patient (human immunodeficiency virus) with disseminated cutaneous rhinosporidiosis. A 44-year-old male presented with a swelling in the right upper eyelid for 6 months...
January 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546424/topical-erythropoietin-treatment-accelerates-the-healing-of-cutaneous-burn-wounds-in-diabetic-pigs-through-an-aquaporin-3-dependent-mechanism
#12
Saher Hamed, Yehuda Ullmann, Dana Egozi, Aviad Keren, Essam Daod, Omer Anis, Hoda Kabha, Mark Belokopytov, Manal Ashkar, Rona Shofti, Asaph Zaretsky, Michal Schlesinger, Luc Teot, Paul Y Liu
We have previously reported that the topical application of erythropoietin (EPO) to cutaneous wounds in rats and mice with experimentally-induced diabetes mellitus (DM) accelerates their healing by stimulating angiogenesis, reepithelialization, and collagen deposition, and suppressing the inflammatory response and apoptosis. Aquaporins (AQP) are integral membrane proteins whose function is to regulate intracellular fluid hemostasis by enabling the transport of water and glycerol. AQP3 is the AQP that is expressed in the skin where it facilitates cell migration and proliferation and reepithelialization during wound healing...
May 25, 2017: Diabetes
https://www.readbyqxmd.com/read/28545855/-a-complex-case-of-diabetes-due-to-lmna-mutation
#13
C Ambonville, M-A Bouldouyre, P Laforêt, P Richard, O Benveniste, C Vigouroux
INTRODUCTION: Laminopathies (diseases related to A/C mutations of lamines) are rare genetic diseases with an extensive phenotypic spectrum, including lipodystrophic syndromes-characterized by a selective loss of adipose tissue-of which the partial Dunnigan family type is the most frequent. CASE REPORT: We report on a 55-year-old woman with diabetes and long-term disabling myalgia. Her cushingoid morphotype, associated with cutaneous lipo-atrophy and muscle hypertrophy in addition to a genetic heritage, led us to the diagnosis of complex partial familial lipodystrophy heterozygous LMNA_c...
May 22, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28544952/influence-of-both-cutaneous-input-from-the-foot-soles-and-visual-information-on-the-control-of-postural-stability-in-dyslexic-children
#14
Nathalie Goulème, Philippe Villeneuve, Christophe-Loïc Gérard, Maria Pia Bucci
Dyslexic children show impaired in postural stability. The aim of our study was to test the influence of foot soles and visual information on the postural control of dyslexic children, compared to non-dyslexic children. Postural stability was evaluated with TechnoConcept(®) platform in twenty-four dyslexic children (mean age: 9.3±0.29years) and in twenty-four non-dyslexic children, gender- and age-matched, in two postural conditions (with and without foam: a 4-mm foam was put under their feet or not) and in two visual conditions (eyes open and eyes closed)...
May 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28544799/fine-needle-aspiration-cytology-of-primary-cutaneous-mucinous-carcinoma-of-axilla-report-of-a-rare-case
#15
Subrata Pal, Palash Kr Mondal, Rajashre Pradhan, Abhishek Sharma, Biswajit Biswas, Subodh Bhattacharyya
Primary mucinous eccrine carcinoma is a rare malignant adnexal tumor of older patients. The histopathological features of this tumor are well-established but the cytomorphology of this neoplasm has only been documented in a few cases. The cytology and histology of this tumor may mimic metastatic mucinous carcinoma and may cause a diagnostic dilemma, especially when the tumor is located at axilla. A correct diagnosis is important because the prognosis is better than that of a metastatic mucinous carcinoma. Here we report the cytological and histological features of a case of primary cutaneous mucinous carcinoma of axilla in an elderly male patient...
May 24, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28544776/comparison-of-histologic-margin-status-in-low-grade-cutaneous-and-subcutaneous-canine-mast-cell-tumours-examined-by-radial-and-tangential-sections
#16
C B Dores, M Milovancev, D S Russell
BACKGROUND: Radial sections are widely used to estimate adequacy of excision in canine cutaneous mast cell tumours (MCTs); however, this sectioning technique estimates only a small fraction of total margin circumference. This study aimed to compare histologic margin status in grade II/low grade MCTs sectioned using both radial and tangential sectioning techniques. MATERIALS AND METHODS: A total of 43 circumferential margins were evaluated from 21 different tumours...
May 23, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28544580/efficacy-of-mycophenolate-mofetil-and-oral-cyclophosphamide-on-skin-thickness-post-hoc-analyses-from-the-scleroderma-lung-study-i-and-ii
#17
Rajaie Namas, Donald P Tashkin, Daniel E Furst, Holly Wilhalme, Chi-Hong Tseng, Michael D Roth, Suzanne Kafaja, Elizabeth Volkmann, Philip J Clements, Dinesh Khanna
OBJECTIVES: To assess the efficacy of mycophenolate mofetil (MMF) and cyclophosphamide (CYC) on the modified Rodnan skin score (mRSS) in participants enrolled in the Scleroderma Lung Study (SLS)-I and II. METHODS: SLS-I participants received daily oral CYC or matching placebo for one year, whereas SLS-II participants received daily MMF for 2 years or daily oral CYC for 1 year followed by placebo for second year. We assessed the impact of MMF and CYC on the mRSS in SLS-II over 24-month period...
May 23, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28544550/post-laryngectomy-stricture-and-pharyngocutaneous-fistula-review-of-techniques-in-primary-pharyngeal-reconstruction-in-laryngectomy
#18
Benjamin Walton, Julian Vellucci, Palak Patel, Kristofer Jennings, Susan McCammon, Michael P Underbrink
OBJECTIVE: The purpose of this study is to find a correlation between closure technique in pharyngeal closure and outcomes of both pharyngocutaneous fistula and post-laryngectomy stricture after laryngectomy. STUDY DESIGN: Retrospective Chart Review. METHODS: We retrospectively reviewed a total of 151 patients over a 20 year period from January 1994 to December of 2013 who underwent primary pharyngeal reconstruction after total laryngectomy specifically looking at the closure technique in relation to pharyngo-cutaneous fistula (PCF) and post-laryngectomy stricture post-operatively...
May 19, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28544307/afoxolaner-and-fluralaner-treatment-do-not-impact-on-cutaneous-demodex-populations-of-healthy-dogs
#19
Christine M Zewe, Laura Altet, Andrea T H Lam, Lluís Ferrer
BACKGROUND: Fluralaner and afoxolaner are isoxazolines licensed for the treatment of flea and tick infestations. Isoxazolines have also shown efficacy for treatment of demodicosis. Nothing is known about the impact of these compounds on the populations of Demodex in healthy dogs. HYPOTHESIS/OBJECTIVES: The objective of this study was to measure the prevalence of Demodex in the skin of healthy dogs prior to and following the use of either afoxolaner or fluralaner, using real-time PCR (RT-PCR) for Demodex DNA...
May 23, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28544089/benign-atrophic-papulosis-k%C3%A3-hlmeier-degos-disease-the-wedge-shaped-dermal-necrosis-can-resolve-with-time
#20
Christos C Zouboulis, Athanasios Theodoridis, Martina Brunner, Cynthia M Magro
BACKGROUND: Atrophic papulosis is a rare thrombo-occlusive disease, characterized by the appearance of multiple atrophic porcelain-white skin papules, with a surrounding erythematous rim, which are histologically consisting of wedge-shaped necrosis of the dermis. OBJECTIVE: It consists of two variants: a) the benign atrophic papulosis (BAP) only involving the skin and b) the malignant atrophic papulosis (MAP) also involving several internal organs with a cumulative 5-year survival rate of approx...
May 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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