نتایج جستجو برای: silicone

تعداد نتایج: 9601  

2016
Meenakshi Bansal Stephenn Vega Gabrielle A. Yeaney Xi Wang

Introduction: the carcinogenicity of silicone implants has been confirmed in rodents but is not evident in human breast. case report: We report a patient with Li-Fraumeni syndrome who developed bilateral chest wall unclassified sarcomas tightly associated with the capsule of silicone implants placed during treatment for her right breast cancer. conclusion: Our case may suggest that genetic inst...

2005
Makoro Araie

6. Armaly MF: Ocular tolerance to silicones: 1. Replacement of aqueous and vitreous by silicone fluids. Arch Ophthalmol 68:390, 1962. 7. Lee P, Donovan RH, and Mukai N: Intravitreous injection of silicone: An experimental study. Ann Ophthalmol 1:15, 1969. 8. Foerster MM, Esser J, and Laqua H: Silicone oil and its influence on electrophysiologic findings. Am J Ophthalmol 99:201, 1985. 9. Gregor ...

Journal: :The British journal of ophthalmology 1998
T Oshika T Nagata Y Ishii

AIMS To investigate the adhesion characteristics of several intraocular lenses (IOLs) to the simulated and rabbit lens capsule. METHODS Adhesive force to bovine collagen sheets was measured in water with polymethylmethacrylate (PMMA), three piece silicone, and acrylic foldable IOLs. In rabbit eyes, phacoemulsification and IOL implantation were performed. Three weeks later, adhesion between th...

2014
Heon Yoo Seung Jun Shin Myong Chul Park

Breast implants have been used for breast reconstruction and augmentation for the last 50 years. There are about 100,000 women in the United Kingdom with silicone implants, of which approximately 60% are for breast reconstruction following mastectomy [1]. Approximately one to two million women have undergone breast implantation in the United States [2]. The silicone Poly Implant Prothèse breast...

2017
Ashraf Bor'i Mahmoud A Al-Aswad Ahmed Abdelwahab Saad Dina Hamada Ashraf Mahrous

PURPOSE To evaluate the outcome of 23 G PPV and ILM peeling with 14% C3F8 compared with silicone oil tamponade in cases of TMHs without spontaneous closure. METHODS A retrospective comparative study included 33 eyes with TMHs; 7 eyes healed spontaneously, and the remaining 26 eyes have been treated with PPV and ILM peeling. Silicone oil was used as a tamponade for children or adults who refus...

Journal: :Journal of vascular and interventional radiology : JVIR 2010
Cheng K Ong Sudhakar K Venkatesh Gabriel B Lau Shih C Wang

PURPOSE The objective of this study was to evaluate and compare the relative durability and complications between the proximal valve polyurethane and distal valve silicone peripherally inserted central catheters (PICCs). METHODS Institutional review board approval was obtained. A total of 326 patients (mean age, 50.4 years) was assigned randomly to receive either a proximal valve polyurethane...

Journal: :Biofouling 2003
Judith Stein Kathryn Truby Christina Darkangelo Wood Jeff Stein Martha Gardner Geoffrey Swain Christopher Kavanagh Brett Kovach Michael Schultz Deborah Wiebe Eric Holm Jean Montemarano Dean Wendt Celia Smith Anne Meyer

Silicone biofouling release coatings have been shown to be an effective method of combating fouling. Nearly all silicone foul release coatings are augmented with an oil additive to decrease macrofouling attachment strength. This paper addresses the effect of the type of oil that is incorporated into the silicone coating and the type of silicone coating itself (silica vs calcium carbonate filled...

Journal: :Journal of Clinical Pathology 1982

2017
Ebru Demet Cifter Meltem Ozdemir – Karatas Emrah Baca Adem Cinarli Ali Balik Erkan Sancakli Bilge Gokcen-Rohlig

BACKGROUND Colour degradation is a major problem in maxillofacial silicone elastomers. Recent studies have focused on colour stability and the mechanical properties of the silicone elastomers. A colour match is also essential for the acceptance of the prosthesis by the patient. The aim of this study is to assess the colour degradation of the silicone elastomer after being moulded in different c...

2017
Lamees Nayef Madiha F. Khan Michael A. Brook

Protein drugs such as insulin are almost universally delivered via glass syringes lubricated with silicone oil. It is not uncommon for prefilled syringes (PFS) to become cloudy, which may affect bioavailability or total drug dose. To examine the role, if any, of the silicone oil lubricant in this process, a systematic evaluation of the degree of insulin denaturation and aggregation as a functio...

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