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Amniotic membrane

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https://www.readbyqxmd.com/read/29786973/amniotic-fluid-lactic-acid-and-matrix-metalloproteinase-8-levels-at-the-time-of-fetal-surgery-for-a-spine-defect-association-with-subsequent-premature-preterm-rupture-of-membranes
#1
Antonio F Moron, Aikaterini Athanasiou, Mauricio Barbosa, Herbene J Milani, Stephanno G Sarmento, Sergio Cavalheiro, Steven S Witkin
OBJECTIVE: In utero fetal surgery to correct incomplete closure of the spinal cord lessens the extent of permanent damage but is associated with preterm premature rupture of membranes (pPROM). We determined if compounds in amniotic fluid (AF) collected at the time of surgery predicted subsequent development of pPROM. DESIGN: Prospective study. SETTING: Hospitals in Sao Paulo, Brazil. POPULATION: Twenty four consecutive pregnant women at 24-26 weeks gestation seen between February and October 2017 with a singleton pregnancy underwent in utero surgery to correct an open spinal defect in their fetus...
May 22, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29785990/continuous-intraoperative-optical-coherence-tomography-guided-shield-ulcer-debridement-with-tuck-in-multilayered-amniotic-membrane-transplantation
#2
Namrata Sharma, Deepali Singhal, Prafulla Kumar Maharana, Rahul Jain, Pranita Sahay, Jeewan S Titiyal
Purpose: The aim of this study is to describe a modified surgical technique of continuous intraoperative optical coherence tomography (iOCT)-guided shield ulcer debridement with tuck-in multilayered Amniotic membrane transplantation (ML AMT) in vernal keratoconjunctivitis (VKC) with shield ulcer with plaque. Methods: Seven eyes of seven patients presenting with VKC with shield ulcer with plaque were enrolled in this prospective case series and planned for shield ulcer debridement with ML AMT...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785085/-wet-transepithelial-phototherapeutic-keratectomy-in-the-management-of-persistent-epithelial-defects-in-the-graft
#3
Sergei V Churashov, Elena V Kudryashova, Alexei N Kulikov, Ernest V Boiko, Valerii F Chernysh, Dmitrii S Maltsev
Purpose: This study aimed to evaluate the efficacy of "wet" transepithelial phototherapeutic keratectomy (TE-PTK) for treating persistent epithelial defects (PEDs) in the corneal graft following penetrating keratoplasty (PKP). Methods: This study describes a noncomparative, prospective interventional case series. Patients with post-PKP graft epithelial defects lasting >3 months despite previous treatments with extensive wear soft contact lenses, amniotic membrane transplantation, and tarsorrhaphy were treated with wet TE-PTK...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29780958/resorbable-and-running-suture-for-stable-fixation-of-amniotic-membrane-multilayers-a-useful-modification-in-deep-or-perforating-sterile-corneal-ulcers
#4
Constantin E Uhlig, Viktoria C Müller
Purpose: To present a modified technique for secure tightening and fixing of multilayer amniotic membranes in deep or perforating corneal ulcers. Observations: The modified procedure for application and fixation of multilayer amniotic membranes is retrospectively described step by step, and the results of three patients treated with this technique were retrospectively analysed and presented.The modification consists basically in fixing the inlays with one mini-overlay that is sutured intracorneally with resorbable and running Vicryl 10...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780948/adrenocorticotropic-hormone-analogue-as-novel-treatment-regimen-in-ocular-cicatricial-pemphigoid
#5
Yael Sharon, David S Chu
Purpose: To report the clinical outcome of a patient with ocular cicatricial pemphigoid, treated with adrenocorticotropic hormone gel. Observations: A 75-year-old female with a biopsy proven ocular cicatricial pemphigoid (OCP) presented with bilateral conjunctival inflammation, fornix shortening, subepithelial fibrosis and corneal scarring. The patient was previously treated with topical steroids, topical cyclosporine and lubricating drops, and had undergone several amniotic membrane transplants due to recurrent corneal erosions...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29765945/atypical-fibroxanthoma-of-the-bulbar-conjunctiva-a-unique-case-describing-the-pathology-clinical-presentation-and-management
#6
Justin Kuiper, Ankit Shah, Rebecca Kuennen, Lynn Schoenfield
Background/Aims: Atypical fibroxanthoma is an uncommon tumor that usually occurs in the skin of the head and neck of the elderly with significant sun exposure. We describe a unique case featuring a rare ocular surface conjunctival tumor (atypical fibroxanthoma) and provide insight on its characteristic clinical features, surgical management, and histology. Methods: A 71-year-old male fisherman with no pertinent ocular history presented to an academic center with a rapidly enlarging bulbar conjunctival mass in the right perilimbal region for the past several months...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29764389/comparison-of-hyperdry-amniotic-membrane-transplantation-and-conjunctival-autografting-for-primary-pterygium
#7
Xin Pan, Daguang Zhang, Zhifang Jia, Zhehui Chen, Yuetian Su
BACKGROUND: The purpose of this study was to evaluate the safety and effectiveness of the hyperdry amniotic membrane transplantation compared with conjunctival autografting for the treatment of primary pterygium. METHODS: One hundred and forty-one eyes from 130 patients with primary pterygium were treated with excision followed by hyperdry amniotic membrane or conjunctival autografting after random selection. Seventy-nine eyes from 71 patients received hyperdry amniotic membrane transplantation (HD-AM group), and 62 eyes from 59 patients received conjunctival autografting (CG group)...
May 15, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29759046/classification-of-preterm-birth-with-placental-correlates
#8
Karen M Chisholm, Mary E Norton, Anna A Penn, Amy Heerema-McKenney
Premature birth lacks a widely accepted classification that unites features of the clinical presentation with placental pathology. To further explore associations between the clinical categories of preterm birth and placental histology, 109 infants with gestational age <34 weeks and birth weight <2000 g were selected and, based on electronic records, were classified into preterm birth categories of preterm labor, prelabor premature rupture of membranes, preeclampsia, indicated preterm birth for maternal factors (other than preeclampsia), indicated preterm birth for fetal factors, and the clinical diagnosis of abruption...
January 1, 2018: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29757854/re-amniotic-membrane-grafts-to-reduce-pterygium-recurrence
#9
Charudutt Kalamkar, Jaideep Singh Popli, Amrita Mukherjee
No abstract text is available yet for this article.
May 1, 2018: Cornea
https://www.readbyqxmd.com/read/29749501/placental-protein-14-as-a-potential-biomarker-for-diagnosis-of-preterm-premature-rupture-of-membranes
#10
Yanyun Wang, Haibo Luo, Guanglu Che, Yanqin Li, Jun Gao, Qiongli Yang, Bin Zhou, Linbo Gao, Tao Wang, Yujie Liang, Lin Zhang
Premature rupture of membranes (PROM) is a common pregnancy complication that frequently results in maternal and perinatal morbidity. The present methods for diagnosing PROM do not satisfy clinical requirements. The present study aimed to examine the proteome profile of amniotic fluid (AF) and maternal plasma, screen unique proteins in AF, and evaluate their diagnostic value for diagnosing PROM. The proteome profiles of AF and maternal plasma were examined via liquid chromatography coupled with tandem mass spectrometry‑based proteomic techniques...
May 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29746328/does-mucous-membrane-grafting-have-a-clear-advantage-over-amniotic-membrane-grafting-in-refractory-giant-papillae
#11
Josephine S Christy, Fredrick Mouttapa, Purushothama Rajkumar
No abstract text is available yet for this article.
May 8, 2018: Cornea
https://www.readbyqxmd.com/read/29736806/amniotic-membrane-seeded-fetal-fibroblasts-as-skin-substitute-for-wound-regeneration
#12
Ehsan Taghiabadi, Bahareh Beiki, Nasser Aghdami, Amir Bajouri
Various natural and synthetic biomaterials have been applied as skin substitutes for regenerating damaged skin. Here, we describe a straightforward method for fabrication of a tissue-engineered skin substitute by seeding human fetal fibroblasts on acellular human amniotic membrane (HAM). Fetal fibroblasts are achieved from the skin of normal and non-macerated fetus of 11-14 weeks old after spontaneous pregnancy termination. Acellular HAM is obtained by separation of the outer membrane of the chorion and removing its epithelial cells...
May 8, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29731692/amount-and-distribution-of-selected-biologically-active-factors-in-amniotic-membrane-depends-on-the-part-of-amnion-and-mode-of-childbirth-can-we-predict-properties-of-amnion-dressing-a-proof-of-concept-study
#13
Małgorzata Litwiniuk, Małgorzata Radowicka, Alicja Krejner, Anna Śladowska, Tomasz Grzela
Aim of the study: The amniotic membrane is used as a dressing material, e.g. in ocular surgery or treatment of non-healing wounds. Of note, results of previous studies differ significantly, presumably due to the biological properties of amnion. Some authors suggest that these properties may depend on inter-donor variations, as well as the method of delivery. The aim of our study was to analyse the content of selected factors important for tissue regeneration in various areas of amnion samples originating from elective caesarean sections and on-term natural deliveries...
2018: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/29724209/microbial-keratitis-induced-endophthalmitis-incidence-symptoms-therapy-visual-prognosis-and-outcomes
#14
Daniel Zapp, Daria Loos, Nikolaus Feucht, Ramin Khoramnia, Tamer Tandogan, Lukas Reznicek, Christian Mayer
BACKGROUND: To evaluate symptoms, therapies and outcomes in rare microbial keratitis-induced endophthalmitis. METHODS: Retrospective study with 11 patients treated between 2009 and 2014. Clinical findings, corneal diseases, history of steroids and trauma, use of contact lenses, number and type of surgical interventions, determination of causative organisms and visual acuity (VA) were evaluated. RESULTS: The incidence of transformation from microbial keratitis to an endophthalmitis was 0...
May 3, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29722767/amniotic-epithelial-stem-cells-salient-features-and-possible-therapeutic-role
#15
Aurelio Muttini, Barbara Barboni, Luca Valbonetti, Valentina Russo, Nicola Maffulli
This is a study of amniotic epithelial cells, which form the innermost layer of the amniotic membrane. These cells can be easily isolated and display peculiar and unique properties, such as plasticity and differentiation potential toward the 3 germinal layers, that may aid regeneration and/or repair of damaged or diseased tissues and organs. A robust literature based on in vitro, experimental, and clinical studies in large animals demonstrates that these cells can enhance the regeneration of tendons, bone, and articular cartilage...
June 2018: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/29719651/combined-tenonplasty-and-scleral-graft-for-refractory-pseudomonas-scleritis-following-pterygium-removal-with-mitomycin-c-application
#16
Heidar Siatiri, Nima Mirzaee-Rad, Shruti Aggarwal, Ahmad Kheirkhah
Purpose: To report a surgical approach combining scleral patch graft and tenonplasty for successful management of refractory Pseudomonas scleritis following pterygium removal with mitomycin C application. Case Report: A 75-year-old diabetic woman with a history of prior pterygium excision and mitomycin C application developed infectious necrotizing scleritis caused by Pseudomonas aeruginosa . Owing to progression of scleritis despite medical management, the patient underwent surgery...
April 2018: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29718716/complex-chromosomal-aberrations-in-a-fetus-originating-from-oocytes-with-smooth-endoplasmic-reticulum-ser-aggregates
#17
Ioannis A Sfontouris, George T Lainas, Tryfon G Lainas, Efthimios Faros, Maria Banti, Katerina Kardara, Katerina Anagnostopoulou, Harris Kontos, George K Petsas, Efstratios M Kolibianakis
The presence of smooth endoplasmic reticulum aggregates (SERa) in the ooplasm is considered as the most severe oocyte dysmorphism due to its serious and potentially lethal outcomes in offspring. In the present case report, a couple underwent their first intracytoplasmic sperm injection (ICSI) cycle using a gonadotrophin releasing hormone (GnRH) antagonist protocol, followed by fetal ultrasound scanning and amniocentesis. SERa were observed in all oocytes retrieved. A singleton pregnancy was established. The second trimester fetal ultrasound scan revealed a female fetus with overlapping fingers in both hands, and amniocentesis was performed for the detection of chromosomal abnormalities...
May 2, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29718653/silk-sponges-ornamented-with-placenta-derived-extracellular-matrix-augments-full-thickness-cutaneous-wound-healing-by-stimulating-neovascularization-and-cellular-migration
#18
Arun Prabhu Rameshbabu, Kamakshi Bankoti, Sayanti Datta, Elavarasan Subramani, Anupam Apoorva, Paulomi Ghosh, Priti Prasanna Maity, Padmavati Manchikanti, Koel Chaudhury, Santanu Dhara
Regeneration of full-thickness wound without scar formation is a multifaceted process which depends on in situ dynamic interactions between the tissue-engineered skin substitutes and newly formed reparative tissue. However, the majority of the tissue-engineered skin substitutes used so far in full-thickness wound healing cannot mimic the natural extracellular matrix (ECM) complexity and thus are incapable of providing a suitable niche for endogenous tissue repair. Herein, we demonstrated a simple approach to fabricate porous Hybrid Extracellular Matrix Sponges (HEMS) using Placental Extracellular Matrix (pECM) and Silk Fibroin (SF) for full-thickness wound healing...
May 2, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29709964/bacterial-culture-negative-subclinical-intra-amniotic-infection-can-be-detected-by-bacterial-16s-ribosomal-dna-amplifying-polymerase-chain-reaction
#19
Sachi Morimoto, Hirokazu Usui, Tatsuya Kobayashi, Eiji Katou, Shunji Goto, Hirokazu Tanaka, Makio Shozu
Comprehensive analysis of bacterial DNA enhanced our understanding of the maternal microbiome and its disturbance in preterm birth, although clinical utility of these techniques remains to be determined. We examined whether broad-range polymerase technique is useful for detection of culture-negative intra-amniotic infection (IAI). Pregnant women who underwent amniocentesis for the management of preterm birth with or without the premature rupture of membranes. Bacterial 16S ribosomal DNA in the amniotic fluid was detected by polymerase chain reaction (PCR) using primers for a sequence shared by Ureaplasma, Mycoplasma, and other bacteria...
April 27, 2018: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29709096/17ohp-c-in-patients-with-spontaneous-preterm-labor-and-intact-membranes-is-there-an-effect-according-to-the-presence-of-intra-amniotic-inflammation
#20
Satoshi Yoneda, Noriko Yoneda, Arihiro Shiozaki, Osamu Yoshino, Tomohiro Ueno, Hideki Niimi, Isao Kitajima, Kentaro Tamura, Yukako Kawasaki, Masami Makimoto, Taketoshi Yoshida, Shigeru Saito
PROBLEM: It is not known whether 17-alpha-hydroxyprogesterone caproate (17OHP-C) is effective for preventing preterm delivery with an episode of preterm labor (PTL) with or without intra-amniotic inflammation/infection. METHODS OF STUDY: This was a retrospective cohort study. One hundred and seven PTL patients were selected and divided into a 17OHP-C group (use of 17OHP-C: n = 53) and a no-treatment group (no use of 17OHP-C: n = 54). Moreover, the patients were divided into three subgroups (subgroup A: without intra-amniotic inflammation, B: with mild intra-amniotic inflammation, and C: with severe intra-amniotic inflammation) according to their level of amniotic interleukin (IL)-8, and perinatal prognosis was analyzed...
April 30, 2018: American Journal of Reproductive Immunology: AJRI
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