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Amniotic membran

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https://www.readbyqxmd.com/read/28211877/fresh-frozen-amniotic-membrane-for-conjunctival-reconstruction-after-excision-of-neoplastic-and-presumed-neoplastic-conjunctival-lesions
#1
U Agraval, P Rundle, I G Rennie, S Salvi
PurposeSuspicious neoplastic conjunctival lesions often require wide excision with tumour-free margins, leaving significant conjunctival defects requiring reconstruction. In this study we report the results of using fresh frozen amniotic membrane grafts (AMG) after wide excision of potentially malignant lesions.MethodsRetrospective review of 53 patients; between January 2011 and April 2014. Conjunctival lesions were excised with a non-touch technique (2 mm margin) and sent for histopathological analysis. The surgical margins were treated with cryotherapy and a fresh frozen AMG was used to cover the defect...
February 17, 2017: Eye
https://www.readbyqxmd.com/read/28202111/-mortality-rate-and-cause-of-death-in-hospitalized-neonates-an-analysis-of-480-cases
#2
Feng-Dan Xu, Xiang-Yong Kong, Zhi-Chun Feng
OBJECTIVE: To investigate the mortality rate and the cause of death of hospitalized neonates. METHODS: The clinical data of 480 neonates who died between January 2008 and December 2014 were collected. The mortality rates of neonates with different gestational ages, birth weights, sexes, and ages in days were analyzed. The abnormal perinatal factors, cause of death, and death grade were summarized. RESULTS: Among the 41 910 hospitalized neonates, 480 (1...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28199196/danshen-extract-regulates-the-expression-of-aquaporin-3-in-human-amniotic-epithelial-cells
#3
Wenwen Zhang, Yiwen Zhang, Xiaoli Hu, Huihui Cheng, Ying Hua, Xueqiong Zhu
Danshen extract has been used in the treatment of oligohydramnios, however, the mechanism of its action has not been elucidated. Previously, we demonstrated that down-regulation of AQP3 in fetal membranes may contribute to the development of oligohydramnios. In this study, we investigated the effects of Danshen extract on AQP3 expression in human amniotic epithelial cells from term pregnancies with oligohydramnios or those with those with (those with) normovolemic amniotic fluid. Human amniotic epithelial cells from the oligohydramnios group expressed a lower level of AQP3 mRNA and protein than those with normovolemia...
March 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28196661/pediatric-medical-device-development-by-surgeons-via-capstone-engineering-design-programs
#4
Bryan S Sack, Rodolfo A Elizondo, Gene O Huang, Nicolette Janzen, Jimmy Espinoza, Magdalena Sanz-Cortes, Jennifer E Dietrich, Julie Hakim, Eric Richardson, Maria Oden, John Hanks, Balakrishna Haridas, James F Hury, Chester J Koh
BACKGROUND: There is a need for pediatric medical devices that accommodate the unique physiology and anatomy of pediatric patients that is increasingly receiving more attention. However, there is limited literature on the programs within children's hospitals and academia that can support pediatric device development. We describe our experience with pediatric device design utilizing collaborations between a children's hospital and two engineering schools. METHODS: Utilizing the academic year as a timeline, unmet pediatric device needs were identified by surgical faculty and matched with an engineering mentor and a team of students within the Capstone Engineering Design programs at two universities...
February 6, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28179383/cultivated-limbal-epithelial-transplantation-and-penetrating-keratoplasty-postchemical-injury-a-14-year-follow-up
#5
Ritu Shah, Charuta Puranik, Ashik Mohamed, Virender S Sangwan
An 11-year-old girl presented to our tertiary eye care centre with a 9-month-old history of lime injury in the left eye in 1999 with vision of counting fingers close to the face. She initially underwent superficial keratectomy with amniotic membrane graft in 1999. Subsequently, cultivated limbal epithelial transplantation was performed in 2001 which improved her vision to 20/400. Following development of pannus and symblepharon in the left eye, she underwent pannus resection and conjunctival limbal autograft in 2002 and, a month later, optical penetrating keratoplasty (PK) following which her vision improved to 20/125...
February 8, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28173846/phenotype-and-multipotency-of-rabbit-oryctolagus-cuniculus-amniotic-stem-cells
#6
Jéssica Borghesi, Lara Carolina Mario, Ana Claudia Oliveira Carreira, Maria Angélica Miglino, Phelipe Oliveira Favaron
BACKGROUND: Stem cells are capable of unlimited self-renewal and are able to remain undifferentiated for extended periods of time prior to their differentiation into specific cell lineages. Because of the issues (ethical and religious) involved in the use of embryonic stem cells and the limited plasticity of adult stem cells, an alternative cell source could be foetal stem cells derived from extra-embryonic tissue, which are highly proliferative, grow in vitro and possess interesting immunogenic characteristics...
February 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28167848/amniotic-fluid-infection-in-preterm-pregnancies-with-intact-membranes
#7
Tarja Myntti, Leena Rahkonen, Irmeli Nupponen, Anu Pätäri-Sampo, Minna Tikkanen, Timo Sorsa, Juuso Juhila, Sture Andersson, Jorma Paavonen, Vedran Stefanovic
Introduction. Intra-amniotic infection (IAI) is a major cause of preterm labor and adverse neonatal outcome. We evaluated amniotic fluid (AF) proteolytic cascade forming biomarkers in relation to microbial invasion of the amniotic cavity (MIAC) and IAI in preterm pregnancies with intact membranes. Material and Methods. Amniocentesis was made to 73 women with singleton pregnancies; 27 with suspected IAI; and 46 controls. AF biomarkers were divided into three cascades: Cascade 1: matrix metalloproteinase-8 (MMP-8), MMP-9, myeloperoxidase (MPO), and interleukin-6; Cascade 2: neutrophil elastase (HNE), elafin, and MMP-9; Cascade 3: MMP-2, tissue inhibitor of matrix metalloproteinases-1 (TIMP-1), MMP-8/TIMP-1 molar ratio, and C-reactive protein (CRP)...
2017: Disease Markers
https://www.readbyqxmd.com/read/28166972/comparison-between-allantochorion-membrane-and-amniotic-sac-detection-by-per-rectal-palpation-for-pregnancy-diagnosis-on-pregnancy-loss-calving-rates-and-abnormalities-in-newborn-calves
#8
Juan E Romano, Pablo Pinedo, Kelsey Bryan, Roney S Ramos, Karol G Solano, Daniel Merchan, Juan Velez
The objectives of the present investigation were to evaluate the pregnancy diagnosis by detection of either the allantochorion membrane (FMS) or amniotic sac (ASP) by per rectum palpation (PRP) during late embryonic or early fetal period on pregnancy loss (PRL) at reexamination, calving rates, and abnormalities in newborn calves. A controlled randomized blind design with 800 lactating dairy pregnant cows diagnosed by transrectal ultrasonography (TRUS) between Days 35 and 57 of gestation from one dairy farm were included...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28165063/heavy-chain-hyaluronan-pentraxin-3-from-amniotic-membrane-suppresses-inflammation-and-scarring-in-murine-lacrimal-gland-and-conjunctiva-of-chronic-graft-versus-host-disease
#9
Yoko Ogawa, Hua He, Shin Mukai, Toshihiro Imada, Shigeru Nakamura, Chen-Wei Su, Megha Mahabole, Scheffer C G Tseng, Kazuo Tsubota
Chronic graft-versus-host disease (cGVHD) is a major complication of hematopoietic stem cell transplantation. Dry eye disease is the prominent ocular sequel of cGVHD and is caused by excessive inflammation and fibrosis in the lacrimal glands. Heavy chain-Hyaluronan/Pentraxin 3 (HC-HA/PTX3) is a complex purified from human amniotic membrane (AM) and known to exert anti-inflammatory and anti-scarring actions. In this study, we utilized a mouse model of cGVHD to examine whether HC-HA/PTX3 could attenuate dry eye disease elicited by cGVHD...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28152632/cervical-fluid-calreticulin-and-cathepsin-g-in-pregnancies-complicated-by-preterm-prelabor-rupture-of-membranes
#10
Ctirad Andrys, Ivana Musilova, Marcela Drahosova, Ondrej Soucek, Lenka Pliskova, Bo Jacobsson, Nanbert Zhong, Marian Kacerovsky
OBJECTIVE: The study aimed to determine the cervical calreticulin and cathepsin-G concentrations in pregnancies complicated by preterm prelabor rupture of membranes (PPROM) with respect to the presence of microbial invasion of the amniotic cavity (MIAC) and intra-amniotic inflammation (IAI). METHODS: Eighty women with singleton pregnancies complicated by PPROM were included in this study. Cervical and amniotic fluids were obtained at the time of admission, and concentrations of calreticulin and cathepsin-G in cervical fluid were determined using ELISA...
February 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28148737/antenatal-suppression-of-il-1-protects-against-inflammation-induced-fetal-injury-and-improves-neonatal-and-developmental-outcomes-in-mice
#11
Mathieu Nadeau-Vallée, Peck-Yin Chin, Lydia Belarbi, Marie-Ève Brien, Sheetal Pundir, Martin H Berryer, Alexandra Beaudry-Richard, Ankush Madaan, David J Sharkey, Alexis Lupien-Meilleur, Xin Hou, Christiane Quiniou, Alexandre Beaulac, Ines Boufaied, Amarilys Boudreault, Adriana Carbonaro, Ngoc-Duc Doan, Jean-Sebastien Joyal, William D Lubell, David M Olson, Sarah A Robertson, Sylvie Girard, Sylvain Chemtob
Preterm birth (PTB) is commonly accompanied by in utero fetal inflammation, and existing tocolytic drugs do not target fetal inflammatory injury. Of the candidate proinflammatory mediators, IL-1 appears central and is sufficient to trigger fetal loss. Therefore, we elucidated the effects of antenatal IL-1 exposure on postnatal development and investigated two IL-1 receptor antagonists, the competitive inhibitor anakinra (Kineret) and a potent noncompetitive inhibitor 101.10, for efficacy in blocking IL-1 actions...
February 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28139962/intra-amniotic-administration-of-lipopolysaccharide-induces-spontaneous-preterm-labor-and-birth
#12
Nardhy Gomez-Lopez, Roberto Romero, Marcia Arenas-Hernandez, Bogdan Panaitescu, Valeria Garcia-Flores, Tara N Mial, Aashna Sahi, Sonia S Hassan
OBJECTIVE: Intra-amniotic infection is associated with spontaneous preterm labor. In most cases, the infection is subclinical and bacteria are detected in the amniotic cavity rather than in the chorioamniotic membranes. The aims of this study were to determine whether the intra-amniotic injection of a microbial product, lipopolysaccharide (LPS), could induce preterm labor/birth, and to compare this model to two established models of LPS-induced preterm labor/birth. METHODS: Pregnant B6 mice received an intra-amniotic, intra-uterine, or intra-peritoneal injection of LPS (100 ng/amniotic sac, 15μg/25μL, and 15μg/200μL respectively) or PBS (control)...
January 31, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28135201/use-of-a-dehydrated-amniotic-membrane-allograft-in-the-treatment-of-lower-extremity-wounds-a-retrospective-cohort-study
#13
Eric J Lullove
: Injuries to the skin are extensively costly to the health care system. When caused by metabolic and vascular compromise, these injuries are even more foreboding for patients. They can result in chronic inflammation, reduced mobility, and chronic pain. MATERIALS AND METHODS: Twenty patients were selected from the author's patient population at the West Boca Center for Wound Healing for a retrospective cohort study. Patients underwent a run-in period of 2 weeks, where standard of care was used to clear the wound of bioburden...
January 23, 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28131677/a-randomized-clinical-trial-to-evaluate-the-usefulness-of-amniotic-membrane-transplantation-in-bacterial-keratitis-healing
#14
Seyed Ali Tabatabaei, Mohammad Soleimani, Mahmoud Jabbarvand Behrouz, Ali Torkashvand, Pasha Anvari, Mehdi Yaseri
PURPOSE: To determine whether early amniotic membrane transplantation improves the outcomes among patients with bacterial keratitis. PATIENTS AND METHODS: In this prospective randomized clinical trial 49 eyes from 49 patients with bacterial keratitis received routine antibiotic therapy followed by double-layer amniotic membrane transplantation during 2-5 days after start up of the medications and the second group of 50 eyes from 50 patients only received routine antibacterial therapy...
January 25, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28126025/anti-inflammatory-properties-of-amniotic-membrane-patch-following-pericardiectomy-for-constrictive-pericarditis
#15
Katherine M Marsh, Alice S Ferng, Tia Pilikian, Ankit A Desai, Ryan Avery, Mark Friedman, Isabel Oliva, Clint Jokerst, David Schipper, Zain Khalpey
BACKGROUND: Since constrictive pericarditis is most often idiopathic and the pathophysiology remains largely unknown, both the diagnosis and the treatment can be challenging. However, by definition, inflammatory processes are central to this disease process. Amniotic membrane patches have been shown to possess anti-inflammatory properties and are believed to be immune privileged. Due to these properties, amniotic membrane patches were applied intraoperatively in a complicated patient presenting with constrictive pericarditis...
January 26, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28114694/-amniotic-membrane-suspension-and-autologous-serum-are-they-important-for-wound-healing
#16
T Stachon, M-F Wu, M Bischoff, M Huber, A Langenbucher, B Seitz, N Szentmáry
Autologous serum (AS) and amniotic membrane transplantation (AMT) are used in the treatment of several ocular surface diseases. AMT is associated with a surgical intervention. Surgery could be avoided by using eye drops prepared from an amniotic membrane homogenate (AMH) or amniotic membrane suspension (AMS). EGF, bFGF, IL-6 and IL-8 were detected in AMS. However, EGF and bFGF concentrations in AMS were about 1.7-17× lower than in AMH, and IL-6 and IL-8 could not be detected in AMH. 100 % AMS, 15 and 30 % AMH significantly decreased proliferation of human corneal epithelial cells (HCECs) compared to controls (p = <0...
January 23, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28112985/comparison-of-human-amniotic-chorionic-and-umbilical-cord-multipotent-mesenchymal-stem-cells-regarding-their-capacity-for-differentiation-toward-female-germ-cells
#17
Hamid Reza Asgari, Mohammad Akbari, Hossein Yazdekhasti, Zahra Rajabi, Shadan Navid, Fereshte Aliakbari, Niloufar Abbasi, Freidon Sargolzaei Aval, Alireza Shams, Mehdi Abbasi
Placenta harbors a plentiful source of various cells with stem cells or stem-like cell properties, which can be used in therapeutic procedures and research. Mesenchymal stem cells (MSCs) have attracted much attention due to their specific differentiation potential and tolerogenic properties. MSCs have been isolated from different parts of placenta; however, in this study, we isolated MSCs from amnion and chorion membrane, as well as umbilical cord (Wharton's jelly [WJ]) and compared their capacity regarding differentiation toward female germ cells under influence of 10 ng/mL BMP4...
February 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28109180/the-intrauterine-renin-angiotensin-system-sex-specific-effects-on-the-prevalence-of-spontaneous-preterm-birth
#18
Kirsty G Pringle, Tamas Zakar, Eugenie R Lumbers
Preterm birth (PTB) is the single largest cause of death in infants and young children. The rate of PTB is significantly higher in male infants, particularly those that are born very preterm. Here we present evidence to suggest that the decidual renin-angiotensin system may play a role in inhibiting inflammation and maintaining the integrity of the fetal membranes during pregnancy, and that sex-specific alterations in the intrauterine RAS could contribute to the increased risk of PTB in male babies. Women carrying female fetuses have high levels of expression of decidual prorenin at term...
January 21, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28106291/ocular-effects-of-sulfur-mustard-and-therapeutic-approaches-a-review
#19
Yunes Panahi, Seyyed Mahdi Rajaee, Amirhossein Sahebkar
Sulfur mustard (SM) is a strong blistering, highly reactive, lipophilic chemical war agent that causes injury in different organs including the skin, eyes and respiratory tract. The Eyes are especially susceptible to the consequences of SM poisoning because of the aqueous and mucosal nature of conjunctiva and cornea. DNA alkylation and depletion of glutathione, are the most important mechanisms of SM action in the eye injuries. Acute clinical symptoms are including decrease in visual acuity, dryness, photophobia, blepharospasm, conjunctivitis and complaints of foreign body sensation and soreness that gradually progress to severe ocular pain...
January 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28094842/impact-of-microbial-invasion-of-amniotic-cavity-and-the-type-of-microorganisms-on-short-term-neonatal-outcome-in-women-with-preterm-labor-and-intact-membranes
#20
Teresa Cobo, Irene Vives, Adriano Rodríguez-Trujillo, Clara Murillo, Martina A Ángeles, Jordi Bosch, Andrea Vergara, Eduard Gratacós, Montse Palacio
INTRODUCTION: The objective was to evaluate the impact of microbial invasion of the amniotic cavity (MIAC) and the type of microorganisms on pregnancy and short-term neonatal outcomes in women with preterm labor (PTL). MATERIAL AND METHODS: Prospective observational cohort study including women with PTL from 22.0-36.0 weeks. MIAC was defined based on amniotic fluid aerobic/anaerobic/mycoplasmas cultures and intra-amniotic inflammation (IAI) based on amniotic fluid Interleukin-6 levels...
January 17, 2017: Acta Obstetricia et Gynecologica Scandinavica
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