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Enucleation

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https://www.readbyqxmd.com/read/27926752/corneal-resistance-to-keratolysis-after-collagen-crosslinking-with-rose-bengal-and-green-light
#1
Ali Fadlallah, Hong Zhu, Samer Arafat, Irene Kochevar, Samir Melki, Joseph B Ciolino
Purpose: The purpose of this study was to evaluate the resistance to degradation by collagenase A of corneas that have been crosslinked with Rose Bengal and green light (RGX). Methods: The ex vivo crosslinking procedure was performed on enucleated rabbit corneas. Corneas were deepithelialized after applying 30% alcohol. Corneas were stained with Rose Bengal (RB, 0.1%) for 2 minutes and then exposed to green light (532 nm) at 0.25 W/cm2 for times to deliver doses of 50, 100, 150, or 200 J/cm2 (n = 5 per group)...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27924790/can-the-lower-urinary-tract-storage-symptoms-be-completely-resolved-after-plasmakinetic-enucleation-of-the-prostate
#2
Bing-Kun Li, Bin-Shen Chen, Yu-Hong Xin, Chun-Xiao Liu, Shao-Bo Zheng, Ya-Wen Xu, Hu-Lin Li, Yong Zou, Li-Ping Li
The aim of this study was to determine whether the lower urinary tract storage symptoms of benign prostatic obstruction (BPO) could be completely resolved after plasmakinetic enucleation of the prostate (PKEP) and the possible predictors of persistent symptoms. Two hundred and sixty-seven cases of BPO performed PKEP from July 2008 to June 2009 were retrospectively analyzed. Five-year postoperative data were collected and compared with the preoperative data. According to the urodynamic results, the patients were divided into involuntary detrusor contraction (IDC) group (n = 95) and no IDC group (n = 172) preoperatively; the patients with IDC were divided into IDC-persistent group (n = 33) and IDC-resolved group (n = 62) after PKEP...
December 2, 2016: Asian Journal of Andrology
https://www.readbyqxmd.com/read/27923771/off-axis-astigmatism-in-the-isolated-chicken-crystalline-lens
#3
Felix Maier, Siegfried Wahl, Frank Schaeffel
The chicken eye was previously found to have little off-axis astigmatism which is not explained by its special corneal shape but rather by the optical properties of the crystalline lens. To learn more about lens design, we studied off-axis astigmatism in the chicken lens in situ and compared it to a glass lens of similar power but with homogenous refractive index. After euthanasia, enucleated eye balls were cut in the equatorial plane right behind the scleral ossicles. The anterior segment was placed in a water-filled chamber...
December 2016: Vision Research
https://www.readbyqxmd.com/read/27923374/a-case-of-infected-schwannoma-mimicking-malignant-tumor
#4
Mamer S Rosario, Norio Yamamoto, Katsuhiro Hayashi, Akihiko Takeuchi, Shinji Miwa, Hiroyuki Inatani, Takashi Higuchi, Hiroyuki Tsuchiya
BACKGROUND: Infected schwannoma has been reported, this being one of the four cases published in the literature. Infected schwannoma has proven to be a tough diagnostic challenge to the treating tumor surgeon, mimicking infectious entities and most essentially, a malignant tumor. CASE PRESENTATION: The authors report the case of a 64-year-old male with a soft tissue mass in his right gluteal area that presented initially with right leg pain, then later with signs of inflammation on the tumor area...
December 7, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27915441/ovarian-metastasis-from-uveal-melanoma-with-mlh1-pms2-protein-loss-in-a-patient-with-germline-mlh1-mutated-lynch-syndrome-consequence-or-coincidence
#5
João Lobo, Carla Pinto, Micaela Freitas, Manuela Pinheiro, Rámon Vizcaino, Esther Oliva, Manuel R Teixeira, Carmen Jerónimo, Carla Bartosch
Currently, uveal melanoma is not considered within the Lynch syndrome tumor spectrum. However, there are studies suggesting a contribution of microsatellite instability in sporadic uveal melanoma tumorigenesis. We report a 45-year-old woman who was referred for genetic counseling due to a family history of Lynch syndrome caused by a MLH1 mutation. She originally underwent enucleation of the right eye secondary to a uveal spindle cell melanoma diagnosed at age 25. The tumor recurred 22 years later presenting as an ovarian metastasis and concurrently a microscopic endometrial endometrioid carcinoma, grade 1/3 was diagnosed...
December 3, 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27914117/endoresection-with-adjuvant-ruthenium-brachytherapy-for-selected-uveal-melanoma-patients-the-tuebingen-experience
#6
Daniela Süsskind, Carina Dürr, Frank Paulsen, Theodor Kaulich, Karl U Bartz-Schmidt
PURPOSE: To evaluate the treatment of selected patients with uveal melanoma with endoresection and adjuvant ruthenium brachytherapy. METHODS: Thirty-five patients with uveal melanoma not suitable for ruthenium plaque monotherapy were treated with endoresection and adjuvant ruthenium brachytherapy between January 2001 and October 2013. Recurrence-free survival, globe retention, course of visual acuity (VA), occurrence of therapy-related complications and metastasis-free and overall survival were analysed retrospectively...
December 3, 2016: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27914026/limbal-stem-cell-and-oral-mucosal-epithelial-transplantation-from-ex-vivo-cultivation-in-lscd-induced-rabbits-histology-and-immunologic-study-of-the-transplant-epithelial-sheet
#7
Napaporn Tananuvat, Kanokkan Bumroongkit, Chainarong Tocharusa, Umnat Mevatee, Aphisek Kongkaew, Somsanguan Ausayakhun
PURPOSE: To evaluate the results of cultivated limbal epithelial and oral mucosal epithelial transplantation (CLET and COMET) in limbal stem cell deficiency (LSCD)-induced rabbit model. MATERIALS AND METHODS: Six New Zealand white rabbits were divided into two groups of three rabbits each. Limbal tissue was harvested from the first group, and oral mucosal biopsy was obtained from the second group. The tissues were cultured using an explant technique with amniotic membrane as a substrate and co-culture with the 3T3 fibroblast and air-lifting method...
December 2, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/27911838/antagonists-of-growth-hormone-releasing-hormone-receptor-induce-apoptosis-specifically-in-retinoblastoma-cells
#8
Wai Kit Chu, Ka Sin Law, Sun On Chan, Jason Cheuk Sing Yam, Li Jia Chen, Hao Zhang, Herman S Cheung, Norman L Block, Andrew V Schally, Chi Pui Pang
Retinoblastoma (RB) is the most common intraocular cancer in children worldwide. Current treatments mainly involve combinations of chemotherapies, cryotherapies, and laser-based therapies. Severe or late-stage disease may require enucleation or lead to fatality. Recently, RB has been shown to arise from cone precursor cells, which have high MDM2 levels to suppress p53-mediated apoptosis. This finding leads to the hypothesis that restoring apoptosis mechanisms in RBs could specifically kill the cancer cells without affecting other retinal cells...
November 23, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911584/clinicopathological-characteristics-and-prognosis-for-survival-after-enucleation-of-uveal-melanoma-in-chinese-patients-long-term-follow-up
#9
Han Yue, Jiang Qian, Yifei Yuan, Rui Zhang, Yingwen Bi, Fengxi Meng, Yi Xuan
PURPOSE: To summarize the clinicopathological characteristics and prognosis of uveal melanoma (UM) after enucleation in Chinese patients. METHODS: Between 2003 and 2012, a series of 171 patients with UM received enucleation at the Eye & ENT Hospital of Fudan University in Shanghai. Patient clinical information was collected. Pathological examination and BAP1 staining of the enucleated eyes were conducted. Univariate and multivariate Cox proportional hazard regressions were conducted to determine the risk factors, and the survival rates were calculated and compared...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#10
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27909219/superior-survival-of-ex-vivo-cultured-human-reticulocytes-following-transfusion-into-mice
#11
Sabine Kupzig, Stephen F Parsons, Elinor Curnow, David J Anstee, Allison Blair
The generation of cultured red blood cells from stem cell sources may fill an unmet clinical need for transfusion dependent patients, particularly in countries that lack a sufficient and safe blood supply. Cultured red blood cells were generated from human CD34+ cells from adult peripheral blood or cord blood by ex vivo expansion and a comprehensive in vivo survival comparison with standard red cell concentrates was undertaken. Significant amplification (>105 fold) was achieved using CD34+ cells from both cord blood and peripheral blood, generating high yields of enucleated cultured red blood cells...
December 1, 2016: Haematologica
https://www.readbyqxmd.com/read/27908408/protective-effect-of-magnesium-acetyltaurate-against-nmda-induced-retinal-damage-involves-restoration-of-minerals-and-trace-elements-homeostasis
#12
Azliana Jusnida Ahmad Jafri, Natasha Najwa Nor Arfuzir, Lidawani Lambuk, Igor Iezhitsa, Renu Agarwal, Puneet Agarwal, Norhafiza Razali, Anna Krasilnikova, Maria Kharitonova, Vasily Demidov, Evgeny Serebryansky, Anatoly Skalny, Alexander Spasov, Ahmad Pauzi Md Yusof, Nafeeza Mohd Ismail
Glutamate-mediated excitotoxicity involving N-methyl-d-aspartate (NMDA) receptors has been recognized as a final common outcome in pathological conditions involving death of retinal ganglion cells (RGCs). Overstimulation of NMDA receptors results in influx of calcium (Ca) and sodium (Na) ions and efflux of potassium (K). NMDA receptors are blocked by magnesium (Mg). Such changes due to NMDA overstimulation are also associated with not only the altered levels of minerals but also that of trace elements and redox status...
January 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/27905004/ocular-disposition-of-%C3%A2-8-tetrahydrocannabinol-from-various-topical-ophthalmic-formulations
#13
Nagendra S Punyamurthula, Goutham R Adelli, Waseem Gul, Michael A Repka, Mahmoud A ElSohly, Soumyajit Majumdar
The purposes of this project are to enhance the trans-membrane penetration of Δ(8)-Tetrahydrocannabinol (Δ(8)-THC) and to study the effect of various lipid based systems in delivering the compound, non-invasively, to anterior and posterior ocular chambers. Solid lipid nanoparticles (SLNs), fast gelling films were manufactured using high pressure homogenization and melt cast techniques, respectively. The formulations were characterized for drug content, entrapment efficiency, particle size and subsequently evaluated in vitro for trans-corneal permeation...
November 30, 2016: AAPS PharmSciTech
https://www.readbyqxmd.com/read/27903184/microinvasive-tumor-endoresection-in-combination-with-ocular-stereotactic-radiosurgery
#14
Oleg A Sinyavskiy, Roman L Troyanovsky, Pavel I Ivanov, Alexandr S Golovin, Andrey V Tibilov, Svetlana N Solonina, Anna M Astapenko, Irina S Zubatkina
OBJECTIVE The use of Gamma Knife radiosurgery (GKRS) as monotherapy in the treatment of uveal melanoma (UM) allows clinicians to achieve high local tumor control with low recurrence but does not prevent secondary enucleation due to glaucoma in cases of large tumors. The authors analyzed indications for tumor endoresection (ER), the time interval between irradiation and surgery, and the features and results of performing ER for UM after GKRS. METHODS Thirty-seven patients between 28 and 78 years of age (16 male and 11 female patients) with UM underwent GKRS with a dose of 70 to 80 Gy that was applied to the center of the tumor with complete immobilization of the eye during the procedure...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27900248/treatment-of-cystic-lesion-of-mandible-using-combination-of-modified-bone-granules-and-calcium-phosphate-bone-cement-a-preliminary-report
#15
Richik Tripathi, Fahad M Samadi, Sanjeev Kumar
AIMS: This study was conducted to evaluate healing of bony cavity in mandible following enucleation of cystic lesion by obliterating the cavity using modified natural bone granules (G Graft) and calcium phosphate bone cement (G Bone). MATERIALS AND METHOD: In this technique, after enucleation of cystic lesion, peripheral ostectomy using No. 702 fissure bur and perforation of the inferior cortex using 1.5 mm drill bits were performed. Modified hydroxyapatite granules were used to fill the defect while calcium hydroxide bone cement was used to seal the cavity opening...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27900247/use-of-autologous-platelet-rich-fibrin-in-osseous-regeneration-after-cystic-enucleation-a-clinical-study
#16
Manzoor Dar, Tajamul Hakim, Ajaz Shah, Latief Najar, Gowhar Yaqoob, Faiqah Lanker
AIMS AND OBJECTIVES: The aim of this study was to evaluate the efficacy of PRF in osseous regeneration after enucleation of cystic lesions. The objectives of this study were as follows: (1) to evaluate osseous regeneration radiographically with the use of PRF in intrabony defects after cystic enucleation. (2) To evaluate the degree of bone density in intrabony defects with the use of PRF postoperatively after 1st, 3rd, and 6th months. SUBJECTS AND METHODS: 20 cases of cystic lesions were treated using PRF after cystic enucleation...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27900217/can-endourology-fellowship-training-enhance-minimally-invasive-surgery-in-urology-practice
#17
Ahmed M Al-Kandari, Yehya Elshebiny, Hamdy Ibrahim, Ahmad AlShammari, Ahmed A Shokeir
OBJECTIVE: To evaluate the influence of fellowship training in endourology on different endourological procedures in a single institution. SUBJECTS AND METHODS: The operative records of endourological and open surgeries were reviewed. Data analysed included numbers, types, and technical issues related to surgeries. The early study period ranged from September 1998 to September 2004, and the later period from January 2014 to June 2016. The study duration was classified into three periods according to the availability of an endourology fellowship trained member of staff (EFTS)...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27899360/widespread-and-dynamic-translational-control-of-red-blood-cell-development
#18
Juan R Alvarez-Dominguez, Xu Zhang, Wenqian Hu
Cell development requires tight yet dynamic control of protein production. Here, we use parallel RNA and ribosome profiling to study translational regulatory dynamics during murine terminal erythropoiesis. We uncover pervasive translational control of protein synthesis, including widespread alternative translation initiation and termination, robust discrimination of long non-coding from micropeptide-encoding RNAs, and dynamic use of upstream reading frames. We further identify hundreds of mRNAs whose translation efficiency is dynamically controlled during erythropoiesis, and find that they enrich for target sites of RNA-binding proteins that are hematopoietic cell-specific, thus unraveling potential regulators of erythroid translational programs...
November 29, 2016: Blood
https://www.readbyqxmd.com/read/27899323/comparison-of-endoscopic-submucosal-tunneling-dissection-and-thoracoscopic-enucleation-for-the-treatment-of-esophageal-submucosal-tumors
#19
Qing-Yuan Li, Yu-Yuan Xu, Wei Gong, Qiang Zang, Jian-Qun Cai, Haitao Qing, Zelong Han, Aimin Li, Si-de Liu, Yue Li
BACKGROUND: Endoscopic submucosal tunneling dissection (ESTD) has been proved to be safe and effective for removal of esophageal submucosal tumors (SMTs) and can maintain the mucosal integrity compared with other endoscopic methods. The aim of the study was to estimate the safety and efficacy of ESTD as well as compare its efficacy with thoracoscopic enucleation for esophageal SMTs, which is used increasingly as a minimally invasive approach. METHODS: We retrospectively collected the clinical data of the patients with esophageal SMTs smaller than 40 mm who underwent ESTD or thoracoscopic enucleation at Nanfang hospital between January 2008 and August 2016...
November 26, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27896577/modified-laparoscopic-simple-enucleation-with-single-layer-suture-technique-versus-standard-laparoscopic-partial-nephrectomy-for-treating-localized-renal-cell-carcinoma
#20
Qun Lu, Xiaozhi Zhao, Changwei Ji, Suhan Guo, Guangxiang Liu, Shiwei Zhang, Xiaogong Li, Weidong Gan, Hongqian Guo
OBJECTIVES: To compare modified laparoscopic simple enucleation (MLSE) and standard laparoscopic partial nephrectomy (SLPN) for treating localized renal cell carcinoma in our large institutional experience. METHODS: We evaluated 385 consecutive patients who underwent MLSE or SLPN for renal tumors in our institution from January 2013 to December 2015 in terms of perioperative pathological and oncologic outcome variables. During MLSE, the single-layer suture technique was performed for renal reconstruction...
November 28, 2016: International Urology and Nephrology
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