keyword
MENU ▼
Read by QxMD icon Read
search

Amniotic tissue graft

keyword
https://www.readbyqxmd.com/read/28512421/when-an-easy-thing-goes-wrong-foreign-body-induced-granuloma-associated-scleritis-following-pterygium-surgery
#1
Pedro Coelho, Carlos Menezes, Pedro Rodrigues, Rita Gonçalves, Tiago Maio, Jorge Moreira, Paula Tenedório
PURPOSE: To report a case of pterygium surgery with conjunctival autograft followed by focal necrotizing scleritis due to foreign body entrapment in the scleral bed. CASE REPORT/RESULTS: This is a case report of a 76-years-old male patient who underwent nasal pterygium surgery and developed focal necrotizing scleritis secondary to foreign body entrapment under conjunctival autograft. One month following surgery, slit-lamp examination demonstrated a progressive thinning of the surgical area with focal inflammatory signs...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28363256/transplantation-of-amniotic-scaffold-seeded-mesenchymal-stem-cells-and-or-endothelial-progenitor-cells-from-bone-marrow-to-efficiently-repair-3-cm-circumferential-urethral-defect-in-model-dogs
#2
Chen Chen, Shuxin Zheng, Xinke Zhang, Pengxiu Dai, Yongping Gao, Liangliang Nan, Yihua Zhang
The treatment options for patients with a urethral defect are limited by the availability of autologous tissues. We hypothesized that transplantation of decellularized human amniotic scaffolds (dHAS) seeded with allogeneic bone marrow mesenchymal cells (BMSCs) and/or endothelial progenitor cells (EPCs) may serve as a promising repair strategy for long segment of circumferential urethral defect. To verify the hypothesis, with urinary catheterization, a 3-cm segment of whole urethra in 25 male mongrel dogs was excised and replaced by dHAS seeded with allogeneic BMSCs and/or EPCs...
March 31, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28344763/utility-of-human-amniotic-membrane-allograft-in-re-epithelialization-of-the-nasal-tip
#3
D'Antonio C Dennis, Adam R Turnock, Collin Sutton, Bradley Chastant, Wesley B Vanderlan
Variations in skin thickness and contours pose significant challenges to reconstruction of the lower third of the nose. Human amniotic membrane allograft offers a potential alternative to tissue transfer in reconstruction of the lower third of the nose. We reviewed the procedure and photographs of a healthy 56-year-old male with a 22 × 18 mm lower third nasal defect involving full thickness skin and subcutaneous tissue. Following preparation for grafting, dehydrated human amniotic membrane was fashioned to the dimensions of the defect and applied...
October 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28320452/compared-to-the-amniotic-membrane-wharton-s-jelly-may-be-a-more-suitable-source-of-mesenchymal-stem-cells-for-cardiovascular-tissue-engineering-and-clinical-regeneration
#4
Lei Pu, Mingyao Meng, Jian Wu, Jing Zhang, Zongliu Hou, Hui Gao, Hui Xu, Boyu Liu, Weiwei Tang, Lihong Jiang, Yaxiong Li
BACKGROUND: The success of developing cardiovascular tissue engineering (CTE) grafts greatly needs a readily available cell substitute for endothelial and interstitial cells. Perinatal annexes have been proposed as a valuable source of mesenchymal stem cells (MSCs) for tissue engineering and regenerative medicine. The objective of the present study is to evaluate the potential of human Wharton's jelly MSCs (WJ-MSCs) and amniotic membrane MSCs (AM-MSCs) as a seeding cell in CTE and cardiovascular regenerative medicine...
March 21, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28224047/identification-of-extracellular-matrix-components-and-biological-factors-in-micronized-dehydrated-human-amnion-chorion-membrane
#5
Jennifer Lei, Lauren B Priddy, Jeremy J Lim, Michelle Massee, Thomas J Koob
Objective: The use of bioactive extracellular matrix (ECM) grafts such as amniotic membranes is an attractive treatment option for enhancing wound repair. In this study, the concentrations, activity, and distribution of matrix components, growth factors, proteases, and inhibitors were evaluated in PURION(®) Processed, micronized, dehydrated human amnion/chorion membrane (dHACM; MiMedx Group, Inc.). Approach: ECM components in dHACM tissue were assessed by using immunohistochemical staining, and growth factors, cytokines, proteases, and inhibitors were quantified by using single and multiplex ELISAs...
February 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28007491/a-novel-experimental-method-for-penile-augmentation-urethroplasty-with-a-combination-of-buccal-mucosa-and-amniotic-membrane-in-a-rabbit-model
#6
Mustafa Güneş, Muammer Altok, Özlem Özmen, Mehmet Umul, Alime Güneş, Ercan Baş, Zafer Özyildiz, Tolga Taha Sönmez, Hikmet Orhan
OBJECTIVE: To investigate the results of penile urethral reconstruction using amniotic membrane (AM) and buccal mucosa (BM) grafts, and the simultaneous use of both in a rabbit model. MATERIALS AND METHODS: A total of 28 male rabbits were divided into 4 groups according to grafting style: group 1 (AM), group 2 (BM), group 3 (BM + AM), and group 4 (sham). A standardized urethral defect was created in the 3 initial groups. The sham group underwent only a ventral vertical urethral incision and primary re-suturation...
December 19, 2016: Urology
https://www.readbyqxmd.com/read/27921031/amniotic-epithelial-cells-a-new-tool-to-combat-aging-and-age-related-diseases
#7
Clara Di Germanio, Michel Bernier, Rafael de Cabo, Barbara Barboni
The number of elderly people is growing at an unprecedented rate and this increase of the aging population is expected to have a direct impact on the incidence of age-related diseases and healthcare-associated costs. Thus, it is imperative that new tools are developed to fight and slow age-related diseases. Regenerative medicine is a promising strategy for the maintenance of health and function late in life; however, stem cell-based therapies face several challenges including rejection and tumor transformation...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27904501/human-amniotic-epithelial-cells-combined-with-silk-fibroin-scaffold-in-the-repair-of-spinal-cord-injury
#8
Ting-Gang Wang, Jie Xu, Ai-Hua Zhu, Hua Lu, Zong-Ning Miao, Peng Zhao, Guo-Zhen Hui, Wei-Jiang Wu
Treatment and functional reconstruction after central nervous system injury is a major medical and social challenge. An increasing number of researchers are attempting to use neural stem cells combined with artificial scaffold materials, such as fibroin, for nerve repair. However, such approaches are challenged by ethical and practical issues. Amniotic tissue, a clinical waste product, is abundant, and amniotic epithelial cells are pluripotent, have low immunogenicity, and are not the subject of ethical debate...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27843896/surgical-reconstruction-of-ocular-surface-tumors-using-fibrin-sealant-tissue-adhesive
#9
Aline Roseane Queiroz de Paiva, Larissa Abreu de Azevedo Fraga, Virgínia Laura Lucas Torres
PURPOSE: To evaluate the surgical outcomes of ocular surface reconstruction in corneal-conjunctival tumors using fibrin tissue adhesive. METHODS: A prospective noncomparative study was performed between May 2013 and February 2015. Patients were submitted to routine surgical procedure for corneal-conjunctival tumor excision followed by amniotic membrane graft transplantation using fibrin tissue adhesive (Evicel®, Omrix Biopharmaceuticals Ltd., Israel). Results were assessed on the 1st, 7th, 15th and 30th postoperative days to analyze subjective complaints, adhesiveness and positioning of the graft, potential complications and recurrences...
October 2016: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/27788828/decellularized-amniotic-membrane-scaffold-as-a-pericardial-substitute-an-in%C3%A2-vivo-study
#10
J C Francisco, R Correa Cunha, M A Cardoso, R Baggio Simeoni, B F Mogharbel, G L Picharski, D Silva Moreira Dziedzic, L C Guarita-Souza, K A T Carvalho
BACKGROUND: In the development of new biomaterials for pericardium substitute, acellular amniotic membrane (AAM) presents potential for new applications in regenerative medicine. We studied an AAM as a pericardial substitute to achieve a suitable, cost effective, abundant matrix for the purpose of using it as graft for tissue repair. METHODS: Twenty Wistar rats were randomly divided into 2 groups (n = 10/group) and had their pericardiums excised. In the experimental group, the excised pericardium segment was substituted by a 7-mm-diameter patch of decellularized AAM sutured to the lesion area...
October 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27651882/clinical-comparison-of-coronally-advanced-flap-plus-amniotic-membrane-or-subepithelial-connective-tissue-in-the-treatment-of-miller-s-class-i-and-ii-gingival-recessions-a-split-mouth-study
#11
Ardeshir Lafzi, Nader Abolfazli, Masoumeh Faramarzi, Masoumeh Eyvazi, Amir Eskandari, Fariba Salehsaber
Background. The aim of the present study was to compare coronally advanced flap (CAF) plus amniotic membrane (AM) to CAF with connective tissue graft (CTG) in the treatment of Miller's class I and II gingival recessions. Methods. Eleven healthy subjects with thirty Miller's class І and ІІ gingival recessions ≥3 mm, were selevted for this research and randomly assigned to two groups in a split-mouth design. In the control group gingival recessions were treated with CAF and CTG; however, in the test group the lesions were treated with (AM) and CAF...
2016: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/27649406/comparing-the-efficacy-of-viable-cryopreserved-placental-membrane-for-the-treatment-of-wounds-of-diverse-etiologies
#12
Derek S Anselmo, Marc Karpo, Ebony Love, Tracey Vlahovic
INTRODUCTION AND OBJECTIVES: The benefits of using amniotic tissue in skin regeneration are well documented. Today, cryopreservation technology allows for better availability and maintenance of mesenchymal stem cells. This is of particular interest in treating the diabetic foot ulcer as this population has fewer mesenchymal stem cells. The objective of this case series investigation was to compare the efficacy of cryopreserved human amniotic stem cells in treating foot wounds of different etiologies...
September 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27507558/long-term-result-of-autologous-cultivated-oral-mucosal-epithelial-transplantation-for-severe-ocular-surface-disease
#13
Pinnita Prabhasawat, Pattama Ekpo, Mongkol Uiprasertkul, Suksri Chotikavanich, Nattaporn Tesavibul, Kanograt Pornpanich, Panitee Luemsamran
The present study aimed to investigate the clinical outcomes of autologous cultivated oral mucosal epithelial transplantation (COMET) on human amniotic membrane (AM) for corneal limbal stem cell deficiency (LSCD). In this prospective, noncomparative case series, 20 eyes (18 patients) with bilateral severe ocular surface disease were chosen to undergo COMET on human AM. The primary outcome was clinical success, and the secondary outcomes were the best-corrected visual acuity difference, corneal opacification, symblepharon formation, and complications...
September 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27453750/new-clinical-application-of-amniotic-membrane-transplant-for-ocular-surface-disease
#14
A Gheorghe, M Pop, M Burcea, M Serban
UNLABELLED: The new defined anatomical and functional complex conjunctiva-limbus-cornea is a new concept, which helps clinicians better understand and treat ocular surface pathologies. The management of the ocular surface disease has changed dramatically over the years, with spectacular improvements of techniques, and of course, results. The amniotic membrane, used as a graft or as a substrate for the cultivation of limbal corneal cells has showed encouraging results. AIM: To investigate the usefulness of amniotic membrane transplantation in ocular surface pathologies...
April 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27430235/optimizing-amniotic-membrane-tissue-banking-protocols-for-ophthalmic-use
#15
D Hettiarachchi, V H W Dissanayake, H W W Goonasekera
Amniotic membrane (AM) due to its anti-inflammatory, anti-scarring and anti-angiogenic properties is used as corneal and wound grafts. When developing AM tissue banks, cell viability, membrane morphology and genomic stability should be preserved following cryopreservation. To analyze the changes rendered to the AM during the process of cryopreservation by comparing different combinations of standard cryopreservation media; fetal bovine serum (FBS), dimethyl sulfoxide (DMSO), Dulbecco's modified eagle's medium (DMEM) and glycerol at -80 °C and at -196 °C for a period of 6 weeks and at 4 °C in 70 % alcohol for 6 weeks...
September 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27405284/amniotic-membrane-transplantation-with-narrow-strip-conjunctival-autograft-vs-conjunctival-autograft-for-recurrent-pterygia
#16
COMPARATIVE STUDY
José B Barbosa, Charles Costa De Farias, Flávio E Hirai, José Á Pereira Gomes
PURPOSE: To compare amniotic membrane transplantation (AMT) associated with narrow-strip conjunctival autograft vs conjunctival autograft alone for the treatment of recurrent pterygium. METHODS: In this prospective consecutive interventional study, patients with recurrent pterygium were randomly divided into one of 2 groups; group 1: patients undergoing AMT associated with autologous conjunctival graft; and group 2: patients undergoing conjunctival autograft alone...
March 10, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/27390533/amniotic-membrane-can-be-a-valid-source-for-wound-healing
#17
Hossam ElHeneidy, Eman Omran, Ahmed Halwagy, Hesham Al-Inany, Mirvat Al-Ansary, Amr Gad
UNLABELLED: Amniotic membrane (AM) can promote proper epithelialization with suppression of excessive fibrosis by creating a supportive milieu for regeneration of chronic ulcer bed. OBJECTIVE: The objective of this study is to investigate whether AM scaffold can modulate the healing of a wound by promoting tissue reconstruction rather than promoting scar tissue formation. SUBJECTS AND METHODS: AM was obtained and prepared and then applied to patients with chronic leg ulcers who were randomly divided into two different groups...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/27192644/utility-of-cartilage-grafts-wrapped-with-amniotic-membrane-in-dorsal-nasal-augmentation
#18
Altay Atespare, Hakan Kara, Erdin Ilter, Zerrin Boyaci, Öner Çelik, Ahmet Midi
OBJECTIVES: The success of rhinoplasty may be compromised with postoperative problems like rough and rigid nasal dorsum. Biological grafts or alloplastic materials are required to hurdle and correct nasal dorsal deformities and also irregularities. The purpose of this experimental study was to compare pure cartilage graft, cartilage graft wrapped in amniotic membrane, and diced cartilage grafts wrapped in amniotic membrane for soft tissue augmentation. METHODS: All grafts were transplanted through a subcutaneous tunnel created in the nasal dorsum of 18 rats, 6 in each group...
June 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27162714/preliminary-results-of-bioactive-amniotic-suspension-with-allograft-for-achieving-one-and-two-level-lumbar-interbody-fusion
#19
Pierce D Nunley, Eubulus J Kerr, Philip A Utter, David A Cavanaugh, Kelly A Frank, Devan Moody, Brian McManus, Marcus B Stone
BACKGROUND: Bone graft material for lumbar fusion was historically autologous bone graft (ABG). In recent years alternatives such as allograft, demineralized bone matrix (DBM), ceramics, and bone morphogenetic protein (BMP) have gained favor, although the complications of these are not fully understood. Bioactive amniotic suspension (BAS) with allograft is a new class of material derived from human amniotic tissue. METHODS: Eligible patients receiving a one or two level lumbar interbody fusion with Nucel, a BAS with allograft, were contacted and scheduled for a mininmim 12 month follow-up visit...
2016: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/27149534/keratoprosthesis-in-ectodermal-dysplasia
#20
Rachel A F Wozniak, Mithra Gonzalez, James V Aquavella
PURPOSE: To describe the complex surgical management and novel medical approach for a keratoprosthesis (KPro Boston type I) in a monocular, 73-year-old patient with ectodermal dysplasia and chronic, noninfectious corneal necrosis. METHODS: Best-corrected visual acuity (BCVA) was measured with Snellen letters. Surgical intervention included an amniotic membrane graft, complete replacement of the KPro, conjunctival flap graft, corneal donor tissue grafts combined with inferior rectus muscle advancement, periosteal tissue graft, tarso-conjunctival flap construction, and symblepharolysis...
July 2016: Cornea
keyword
keyword
101033
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"