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Enucleation

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https://www.readbyqxmd.com/read/28738418/molecular-pathway-to-protection-from-age-dependent-photoreceptor-degeneration-in-mef2-deficiency
#1
Saumya Nagar, Dorit Trudler, Scott R McKercher, Juan Piña-Crespo, Nobuki Nakanishi, Shu-Ichi Okamoto, Stuart A Lipton
Purpose: Photoreceptor degeneration in the retina is a major cause of blindness in humans. Elucidating mechanisms of degenerative and neuroprotective pathways in photoreceptors should afford identification and development of therapeutic strategies. Methods: We used mouse genetic models and improved methods for retinal explant cultures. Retinas were enucleated from Mef2d+/+ and Mef2d-/- mice, stained for MEF2 proteins and outer nuclear layer thickness, and assayed for apoptotic cells...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28736161/-immortalization-of-erythroid-progenitors-for-in-vitro-large-scale-red-cell-production
#2
A Caulier, L Guyonneau Harmand, L Garçon
Population ageing and increase in cancer incidence may lead to a decreased availability of red blood cell units. Thus, finding an alternative source of red blood cells is a highly relevant challenge. The possibility to reproduce in vitro the human erythropoiesis opens a new era, particularly since the improvement in the culture systems allows to produce erythrocytes from induced-Pluripotent Stem Cells (iPSCs), or CD34(+) Hematopoietic Stem Cells (HSCs). iPSCs have the advantage of in vitro self-renewal, but lead to poor amplification and maturation defects (high persistence of nucleated erythroid precursors)...
July 20, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28735019/1-year-surgical-outcomes-of-complete-or-incomplete-enucleation-of-prostate-by-monopolar-electrocoagulation-photoselective-vapoenucleation-of-120w-greenlight-laser-and-holmium-laser
#3
Sung Yong Cho, Juhyun Park, Sangjun You, Min Chul Cho, Hyeon Jeong, Hwancheol Son
OBJECTIVE: To evaluate surgical outcomes of patients who underwent complete or incomplete enucleation technique during a short-term postoperative period METHODS: Patients having intractable LUTS/BPH and prostates > 30 grams with obstructed pattern in the urodynamic examinations were included. They underwent TUR-P, 120 W greenlight laser HPS-PVEP, or HoLEP. Patients with the size of remnant prostates minus surgical defects < 25 grams were grouped into the completely enucleated group (group C) and other were group into the partially enucleated group (group P)...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28735017/en-bloc-thulium-laser-enucleation-of-the-prostate-surgical-technique-and-advantages-compared-with-the-classical-technique
#4
G Saredi, A Pacchetti, G M Pirola, L Berti, F Ambrosini, E Martorana, A M Marconi
OBJECTIVE: To report a new technique for Thulium Laser Enucleation of the Prostate, that we called "En-bloc" ThuLEP. METHODS: A full anatomical description of the technique is provided. We assessed operative variables of a 50-patient series, treated with the new "En-bloc" ThuLEP and compared them with another series of 50 patients (that had the same preoperative parameters) operated with the classical "three lobes" technique, to assess the feasibility of the new one...
July 19, 2017: Urology
https://www.readbyqxmd.com/read/28734973/minimally-invasive-approaches-to-myoma-management
#5
REVIEW
Julian A Gingold, Ndeye-Aicha Gueye, Tommaso Falcone
Patients affected by the presence of leiomyomas may incur a substantial physical, emotional, social and financial toll as well as losses in their quality of life. Although many myomas are not amenable to medical therapy or hysteroscopic resection, many others are amenable to minimally invasive surgical approaches. In patients who prefer to retain their fertility, laparoscopic myomectomy should be considered the intervention of choice. In this review we expand on the surgical techniques of both conventional laparoscopic and robotic-assisted myomectomies...
July 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28732065/direct-targets-of-pstat5-signalling-in-erythropoiesis
#6
Kevin R Gillinder, Hugh Tuckey, Charles C Bell, Graham W Magor, Stephen Huang, Melissa D Ilsley, Andrew C Perkins
Erythropoietin (EPO) acts through the dimeric erythropoietin receptor to stimulate proliferation, survival, differentiation and enucleation of erythroid progenitor cells. We undertook two complimentary approaches to find EPO-dependent pSTAT5 target genes in murine erythroid cells: RNA-seq of newly transcribed (4sU-labelled) RNA, and ChIP-seq for pSTAT5 30 minutes after EPO stimulation. We found 302 pSTAT5-occupied sites: ~15% of these reside in promoters while the rest reside within intronic enhancers or intergenic regions, some >100kb from the nearest TSS...
2017: PloS One
https://www.readbyqxmd.com/read/28730089/an-international-survey-of-classification-and-treatment-choices-for-group-d-retinoblastoma
#7
Christina Scelfo, Jasmine H Francis, Vikas Khetan, Thomas Jenkins, Brian Marr, David H Abramson, Carol L Shields, Jacob Pe'er, Francis Munier, Jesse Berry, J William Harbour, Andrey Yarovoy, Evandro Lucena, Timothy G Murray, Pooja Bhagia, Evelyn Paysse, Samuray Tuncer, Guillermo L Chantada, Annette C Moll, Tatiana Ushakova, David A Plager, Islamov Ziyovuddin, Carlos A Leal, Miguel A Materin, Xun-Da Ji, Jose W Cursino, Rodrigo Polania, Hayyam Kiratli, Charlotta All-Ericsson, Rejin Kebudi, Santosh G Honavar, Vicktoria Vishnevskia-Dai, Sidnel Epelman, Anthony B Daniels, Jeanie D Ling, Fousseyni Traore, Marco A Ramirez-Ortiz
AIM: To determine which IIRC scheme was used by retinoblastoma centers worldwide and the percentage of D eyes treated primarily with enucleation versus globe salvaging therapies as well as to correlate trends in treatment choice to IIRC version used and geographic region. METHODS: An anonymized electronic survey was offered to 115 physicians at 39 retinoblastoma centers worldwide asking about IIRC classification schemes and treatment patterns used between 2008 and 2012...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28729432/tropomodulin1-controls-erythroblast-enucleation-via-regulation-of-f-actin-in-the-enucleosome
#8
Roberta B Nowak, Julien Papoin, David S Gokhin, Carla Casu, Stefano Rivella, Jeffrey M Lipton, Lionel Blanc, Velia M Fowler
Biogenesis of mammalian red blood cells requires nuclear expulsion by orthochromatic erythoblasts late in terminal differentiation (enucleation), but the mechanism is largely unexplained. Here, we employed high resolution confocal microscopy to analyze nuclear morphology and F-actin rearrangements during the initiation, progression and completion of mouse and human erythroblast enucleation in vivo Mouse erythroblast nuclei acquire a dumbbell-shaped morphology during enucleation, while human bone marrow erythroblast nuclei unexpectedly retain their spherical morphology...
July 20, 2017: Blood
https://www.readbyqxmd.com/read/28728986/intra-capsular-total-thyroid-enucleation-versus-total-thyroidectomy-in-treatment-of-benign-multinodular-goiter-a-prospective-randomized-controlled-clinical-trial
#9
Alaa M Sewefy, Tohamy A Tohamy, Tarek M Esmael, Ahmed M Atyia
BACKGROUND: Due to high recurrence rate after subtotal thyroidectomy, most of centers have shifted to total thyroidectomy as a surgical treatment for benign multinodular goiter (BMNG), but serious complications, as laryngeal nerve affection & hypocalcaemia, are still present. This study aimed to evaluate treatment of BMNG using intra-capsular total thyroid enucleation in comparison to standard total thyroidectomy. PATIENTS &METHODS: This is a prospective randomized controlled clinical trial conducted in a hospital in the period from December 2009 to December 2015...
July 18, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28728954/ultrasound-histopathological-and-genetic-features-of-uveal-melanoma-in-a-mexican-mestizo-population
#10
S Delgado, A Rodriguez Reyes, L Mora Rios, A Dueñas-González, L Taja-Chayeb, E Moragrega Adame
OBJECTIVE: To describe the ultrasound, histopathological and genetic characteristics of uveal melanoma in a Mexican-Mestizo population. MATERIAL AND METHODS: A total of 39 enucleated eyes with a histopathological diagnosis of uveal melanoma were assessed by describing the clinical findings, and ultrasound, histopathological and genetic features. RESULTS: A high correlation was observed between tumour height measurement using ultrasound and histopathology...
July 17, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28728177/porcine-collagen-transconjunctival-wound-closure-system-for-microincisional-vitrectomy-surgery
#11
Tiffany A Chen, Peter K Kaiser, Rainer Fasching, Darius M Moshfeghi
BACKGROUND AND OBJECTIVE: Microincisional vitrectomy surgery has improved outcomes for vitrectomies; however, wound closure complications remain an important concern. The authors introduce a technique to improve transconjunctival wound closure in vitrectomy surgery. PATIENTS AND METHODS: The authors evaluated the efficacy of porcine collagen plugs on stopping leakage from sclerotomy test sites in vitro and in vivo and assessed wound site healing with histology samples...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28728144/retinal-penetration-of-intravitreally-injected-tissue-plasminogen-activator-a-rat-model-study
#12
Kfir Tal, Assaf Dotan, Yael Nisgav, Mor Dachbash, Orly Gal-Or, Rita Ehrlich, Dan D Gaton, Dov Weinberger, Tami Livnat
PURPOSE: To determine whether intravitreal unconjugated tissue plasminogen activator (tPA) (alteplase) can penetrate the intact neural retina and reach the subretinal space in an experimental model. METHODS: This study was performed in 24 Sprague-Dawley rats aged 12 weeks. Under general anesthesia, the right eye was injected with either 0.75 μg of 3 μL tPA (14 rats; study group) or saline (10 rats, control group) into the vitreous. Animals were euthanized at 3, 24, and 48 h...
July 20, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28724848/laparoscopic-excision-of-a-uterine-adenomatoid-tumor-and-a-coexisting-ovarian-teratoma-a-case-report-and-literature-review
#13
Tomohiko Matsuhashi, Ryoko Matsui, Chikako Hasegawa, Tsutomu Hatori, Seiryu Kamoi, Toshiyuki Takeshita
Adenomatoid tumors (ATs) are rare, benign neoplasms occurring mainly in reproductive organs such as the uterus, ovaries, fallopian tubes, and testes. Uterine adenomatoid tumors (UATs) are generally incidentally diagnosed during histopathological examination of excisional biopsies performed for other indications, most commonly uterine leiomyomas. We herein present a 38-year-old woman who underwent laparoscopic excision of a uterine leiomyoma and a right ovarian teratoma. Microscopic examination of the excisional biopsy revealed that the enucleated uterine tumor was composed of proliferating glandular tissue covered with single-layered cells that were surrounded by proliferating smooth muscle cells, corresponding exactly to the features of UATs...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/28723490/renal-preservation-and-partial-nephrectomy-patient-and-surgical-factors
#14
REVIEW
Lorenzo Marconi, Mihir M Desai, Vincenzo Ficarra, Francesco Porpiglia, Hendrik Van Poppel
CONTEXT: Optimization of the partial nephrectomy (PN) procedure in terms of preservation of functional outcomes is of special importance. OBJECTIVE: To review the most important patient and surgical factors that may influence the three elements that ultimately define the preservation of renal function (RF) after PN: preoperative RF, quantity of parenchyma preserved, and nephron recovery from ischemic insult. EVIDENCE ACQUISITION: A nonsystematic review of the literature was conducted...
December 15, 2016: European Urology Focus
https://www.readbyqxmd.com/read/28717292/conservative-management-of-unicystic-ameloblastoma-in-young-patients-a-prospective-single-center-trial-and-review-of-literature
#15
Mitsu Meshram, Lalit Sagarka, Jigar Dhuvad, Sonal Anchlia, Siddharth Vyas, Harsh Shah
AIMS: The study intends to evaluate the clinical outcome of treating young patients of unicystic ameloblastoma, by various conservative treatment modalities such as marsupialization, enucleation with bone curettage and aid in establishing sound treatment guidelines. MATERIALS AND METHODS: A case series of fifteen patients is presented of unicystic ameloblastoma, who presented to our Department over the past 6 years (2010-2015) and conservative method of treatment elected in all the patients...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28716301/discrete-%C3%AE-adrenergic-mechanisms-regulate-early-and-late-erythropoiesis-in-erythropoietin-resistant-anemia
#16
Shirin Hasan, Michael J Mosier, Andrea Szilagyi, Richard L Gamelli, Kuzhali Muthumalaiappan
BACKGROUND: Anemia of critical illness is resistant to exogenous erythropoietin. Packed red blood cells transfusions is the only treatment option, and despite related cost and morbidity, there is a need for alternate strategies. Erythrocyte development can be divided into erythropoietin-dependent and erythropoietin-independent stages. We have shown previously that erythropoietin-dependent development is intact in burn patients and the erythropoietin-independent early commitment stage, which is regulated by β1/β2-adrenergic mechanisms, is compromised...
July 14, 2017: Surgery
https://www.readbyqxmd.com/read/28714087/clinical-and-pathological-classification-of-canine-intraocular-lymphoma
#17
Matthew R Lanza, Ayla R Musciano, Richard D Dubielzig, Amy C Durham
The objectives of this retrospective study of 100 dogs with intraocular lymphoma were to describe the histomorphologic and immunohistochemical features of canine intraocular lymphoma, determine the proportion of cases with presumed solitary ocular lymphoma (PSOL) compared to multicentric disease, and assess the clinical outcomes of these patients. Selected cases from Penn Vet Diagnostic Laboratory and Comparative Ocular Pathology Lab of Wisconsin (2004-2015) were evaluated and subtyped using the WHO classification system...
July 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28713736/using-carnoy-s-solution-in-treatment-of-keratocystic-odontogenic-tumor
#18
Najwa Jameel Alchalabi, Ahmed Maki Merza, Sabah Abdulaziz Issa
AIM: The aim of this study was to assess the treatment of keratocystic odontogenic tumor using enucleation and Carnoy's solution with peripheral ostectomy. MATERIALS AND METHODS: Twenty-nine patients (14 females and 15 males) with age range from 12 to 62 years were included in this study and followed up for 7 years; all the patients were treated in the Department of Oral and Maxillofacial Surgery of the Specialized Surgeries Teaching Hospital (Al-Shaheed Ghazi Al-Hariri Hospital-Medical City, Baghdad, Iraq)...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28710216/lag-time-for-retinoblastoma-in-the-uk-revisited-a-retrospective-analysis
#19
Marcus Posner, Adil Jaulim, Marina Vasalaki, Khadija Rantell, Mandeep S Sagoo, M Ashwin Reddy
OBJECTIVES: To explore current delays in diagnosis of retinoblastoma (Rb) and effect on outcome with comparison to a study from the 1990s. SETTING: Primary, secondary, tertiary care: majority from South of England. PARTICIPANTS: A retrospective analysis of 93 new referrals of sporadic (non-familial) Rb to a specialist Rb unit in London, UK from January 2006 to February 2014. PRIMARY AND SECONDARY OUTCOMES: International Intraocular Retinoblastoma Classification, lag times including parental delay and healthcare professional delay, patients requiring enucleation and requirement of adjuvant chemotherapy postenucleation (high-risk Rb)...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28707772/clinicopathological-characteristics-of-desmoplastic-ameloblastoma-a-systematic-review
#20
REVIEW
Rahul Anand, Gargi S Sarode, Sachin C Sarode, Mamatha Reddy, Hemant V Unadkat, Shazia Mushtaq, Revati Deshmukh, Shakira Choudhary, Nitin Gupta, Anjali P Ganjre, Shankargouda Patil
The aim of the present review was to systematically present the clinicopathological data of desmoplastic ameloblastoma (DA) from articles published in the literature. A comprehensive search of the databases (PubMed, Medline, SCOPUS, Web of Science, and Google Scholar) for published articles on DA was conducted. A total of 238 cases were identified and analyzed from 76 published papers. DA showed a slight male predilection (male: female=1.07:1) with a predominance in the fourth and fifth decades of life. Mandibular involvement (52...
July 14, 2017: Journal of Investigative and Clinical Dentistry
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