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Amniotic injection

Pietro Presicce, Chan-Wook Park, Paranthaman Senthamaraikannan, Sandip Bhattacharyya, Courtney Jackson, Fansheng Kong, Cesar M Rueda, Emily DeFranco, Lisa A Miller, David A Hildeman, Nathan Salomonis, Claire A Chougnet, Alan H Jobe, Suhas G Kallapur
Neutrophil infiltration of the chorioamnion-decidua tissue at the maternal-fetal interface (chorioamnionitis) is a leading cause of prematurity, fetal inflammation, and perinatal mortality. We induced chorioamnionitis in preterm rhesus macaques by intraamniotic injection of LPS. Here, we show that, during chorioamnionitis, the amnion upregulated phospho-IRAK1-expressed neutrophil chemoattractants CXCL8 and CSF3 in an IL-1-dependent manner. IL-1R blockade decreased chorio-decidua neutrophil accumulation, neutrophil activation, and IL-6 and prostaglandin E2 concentrations in the amniotic fluid...
March 22, 2018: JCI Insight
Semih Zeki Uludag, Mehmet Serdar Kutuk, Mehmet Dolanbay, Mahmut Tuncay Ozgun, Gunel Eliyeva, Ozguc Altun
The aim of this study was to compare the effect of local intracavitary methotrexate (MTX) injection and laparoscopic (L/S) cornuostomy in the treatment of interstitial pregnancy (IP) in terms of clinical and reproductive outcome. The data of patients with IP (n:10) who were treated between September 2011 and December 2016 with either an intra-amniotic MTX injection (n:7) or L/S cornuostomy (n:3) were retrospectively evaluated. All cases (7/7) in the local injection group and two (2/3) in the L/S group were successfully treated with the initial treatment...
March 14, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Chenyue Ding, Qinyan Zou, Fuxin Wang, Huihua Wu, Rulei Chen, Jinghuan Lv, Mingfa Ling, Jian Sun, Wei Wang, Hong Li, Boxian Huang
BACKGROUND: Although many reports show that various kinds of stem cells have the ability to recover function in premature ovarian aging, few studies have looked at stem cell treatment of natural ovarian aging (NOA). We designed this experimental study to investigate whether human amniotic mesenchymal stem cells (hAMSCs) retain the ability to restore ovarian function, and how hAMSCs work in this process. METHODS: To build the NOA mouse model, the mice were fed for 12-14 months normally with young fertile female mice as the normal control group (3-5 months old)...
March 9, 2018: Stem Cell Research & Therapy
In Sil Jeong, Youngjin Park, Hyun Aae Ryu, Hyun Sook An, Ju Hye Han, Sung-Whan Kim
BACKGROUND: Even though mesenchymal stem cells (MSCs) have angiogenic property, their cytokine secretory capacity is limited to treat ischemic vascular disorders. In present study, we produced genome-edited MSCs that secreted dual chemokine granulocyte chemotactic protein-2 (GCP-2) and stromal-derived factor-1α (SDF-1α) and determined their therapeutic potential in the context of experimental ischemia. METHODS: GCP-2 and SDF-1α genes were integrated into safe harbor site at the safe harbor genomic locus of amniotic mesenchymal stem cells (AMM) via transcription activator-like effector nucleases (TALEN)...
February 15, 2018: International Journal of Cardiology
Lutiana Roque Simões, Gustavo Sangiogo, Michael Hikaru Tashiro, Jaqueline S Generoso, Cristiano Julio Faller, Diogo Dominguini, Gustavo Antunes Mastella, Giselli Scaini, Vijayasree Vayalanellore Giridharan, Monique Michels, Drielly Florentino, Fabricia Petronilho, Gislaine Zilli Réus, Felipe Dal-Pizzol, Alexandra I Zugno, Tatiana Barichello
Evidence suggest that prenatal immune system disturbance contributes largely to the pathophysiology of neuropsychiatric disorders. We investigated if maternal immune activation (MIA) could induce inflammatory alterations in fetal brain and pregnant rats. Adult rats subjected to MIA also were investigated to evaluate if ketamine potentiates the effects of infection. On gestational day 15, Wistar pregnant rats received lipopolysaccharide (LPS) to induce MIA. After 6, 12 and 24 h, fetus brain, placenta, and amniotic fluid were collected to evaluate early effects of LPS...
February 10, 2018: Journal of Psychiatric Research
Jossimara Polettini, Lauren S Richardson, Ramkumar Menon
OBJECTIVE: A physiologic increase of reactive oxygen species (ROS) is observed through pregnancy. ROS-induced damage to major cellular elements, specifically protein peroxidation, can lead to fetal and placental tissue senescence and inflammation often associated with normal parturition. The purpose of this study was to examine the effects of oxidative stress (OS) in inducing changes in proteins, senescence, and sterile inflammation in pregnant mice. METHODS: CD-1 mice (n = 5/group) on day 14 of gestation were subjected to minilaparotomy and the uterine horn between gestational sacs was injected with the following: saline (control), cigarette smoke extract (CSE) CSE diluted in saline and CSE + SB 203580 (SB) (a p38 mitogen-activated protein kinase (MAPK) inhibitor)...
March 2018: Placenta
C Randall Harrell, Valentin Djonov, Crissy Fellabaum, Vladislav Volarevic
The standard sterilization method for most medical devices over the past 40 years involves gamma irradiation. During sterilization, gamma rays efficiently eliminate microorganisms from the medical devices and tissue allografts, but also significantly change molecular structure of irradiated products, particularly fragile biologics such as cytokines, chemokines and growth factors. Accordingly, gamma radiation significantly alters biomechanical properties of bone, tendon, tracheal, skin, amnion tissue grafts and micronized amniotic membrane injectable products...
2018: International Journal of Medical Sciences
Hatice Gulcin Gumus, Miriam Illa, Laura Pla, Monica Zamora, Fatima Crispi, Eduard Gratacos
OBJECTIVE: To evaluate the perinatal effects of a prenatal therapy based on intra-amniotic nutritional supplementation in a rabbit model of intrauterine growth restriction (IUGR). METHODS: IUGR was surgically induced in pregnant rabbits at gestational day 25 by ligating 40-50% of uteroplacental vessels of each gestational sac. At the same time, modified-parenteral nutrition solution (containing glucose, amino acids and electrolytes) was injected into the amniotic sac of nearly half of the IUGR fetuses (IUGR-T group n = 106), whereas sham injections were performed in the rest of fetuses (IUGR group n = 118)...
2018: PloS One
Shohei Fukunaga, Shuichiro Yamanaka, Toshinari Fujimoto, Susumu Tajiri, Taketo Uchiyama, Kei Matsumoto, Takafumi Ito, Kazuaki Tanabe, Takashi Yokoo
To address the lack of organs for transplantation, we previously developed a method for organ regeneration in which nephron progenitor cell (NPC) replacement is performed via the diphtheria toxin receptor (DTR) system. In transgenic mice with NPC-specific expression of DTR, NPCs were eliminated by DT and replaced with NPCs lacking the DTR with the ability to differentiate into nephrons. However, this method has only been verified in vitro. For applications to natural models, such as animal fetuses, it is necessary to determine the optimal administration route and dose of DT...
January 30, 2018: Biochemical and Biophysical Research Communications
Michelangelo Corcelli, Kate Hawkins, Filipa Vlahova, Avina Hunjan, Kate Dowding, Paolo De Coppi, Anna L David, Donald Peebles, Pierre Gressens, Henrik Hagberg, Mariya Hristova, Pascale V Guillot
Human amniotic fluid contains two morphologically-distinct sub-populations of stem cells with regenerative potential, spindle-shaped (SS-hAFSCs) and round-shaped human amniotic fluid stem cells (RS-hAFSCs). However, it is unclear whether morphological differences correlate with functionality, and this lack of knowledge limits their translational applications. Here, we show that SS-hAFSCs and RS-hAFSCs differ in their neuro-protective ability, demonstrating that a single contralateral injection of SS-hAFSCs into hypoxic-ischemic P7 mice conferred a 47% reduction in hippocampal tissue loss and 43-45% reduction in TUNEL-positive cells in the hippocampus and striatum 48 hours after the insult, decreased microglial activation and TGFβ1 levels, and prevented demyelination...
February 5, 2018: Scientific Reports
Julio Jiménez, Flore Lesage, Jute Richter, Taro Nagatomo, Thomas Salaets, Silvia Zia, Marina Gabriela Mori Da Cunha, Jeroen Vanoirbeek, Jan A Deprest, Jaan Toelen
BACKGROUND: Bronchopulmonary dysplasia (BPD) is a chronic lung disease that affects extremely preterm infants and remains - despite improvements in neonatal intensive care - a major cause of neonatal mortality and morbidity. Cell-therapeutic strategies employing mesenchymal stem cells (MSC) have been shown to modulate lung development in BPD models. OBJECTIVE: Herein, we evaluate the potential of human amniotic fluid (hAF)-SC and hAF-SC with upregulated expression of vascular endothelial growth factor (VEGF) as cell-therapeutic agents for BPD...
February 1, 2018: Neonatology
Erin M Fricke, Timothy G Elgin, Huiyu Gong, Jeff Reese, Katherine N Gibson-Corley, Robert M Weiss, Kathy Zimmerman, Noelle C Bowdler, Karen M Kalantera, David A Mills, Mark A Underwood, Steven J McElroy
PROBLEM: Premature birth complicates 10%-12% of deliveries. Infection and inflammation are the most common etiologies and are associated with increased offspring morbidity and mortality. We hypothesize that lipopolysaccharide (LPS)-induced maternal inflammation causes direct placenta injury and subsequent injury to the fetal intestine. METHOD OF STUDY: Pregnant C57Bl6 mice were injected intraperitoneally on day 15.5 with 100 μg/kg LPS or saline. Maternal serum, amniotic fluid, placental samples, and ileal samples of offspring were obtained assessed for inflammation and/or injury...
January 25, 2018: American Journal of Reproductive Immunology: AJRI
H Moravvej, F Abdollahimajd, M-H Naseh, Z Piravar, E Abolhasani, N Mozafari, H Niknejad
BACKGROUND: Different methods of fibroblast application have been examined to treat recessive dystrophic epidermolysis bullosa (RDEB). OBJECTIVE: To compare the effects of intradermal injection of cultured allogeneic fibroblasts in healing RDEB wounds with that of fibroblasts seeded on amniotic membrane scaffolds (FAMS) or standard wound care (SWC) with Vaseline gauze as controls. MATERIALS &METHODS: Seven patients were recruited, and seven wounds were assessed in each patient: three wounds were treated with injection of intradermal fibroblasts, three were treated with FAMS, and one was dressed with SWC...
January 12, 2018: British Journal of Dermatology
Kevin Visconti, Paranthaman Senthamaraikannan, Matthew W Kemp, Masatoshi Saito, Boris W Kramer, John P Newnham, Alan H Jobe, Suhas G Kallapur
BACKGROUND: The efficacy of antenatal steroids for fetal lung maturation in the periviable period is not fully understood. OBJECTIVE: We sought to determine the lung maturational effects of antenatal steroids and inflammation in early gestation sheep fetuses, similar to the periviable period in human beings. STUDY DESIGN: Date-mated ewes with singleton fetuses were randomly assigned to 1 of 4 treatment groups (n = 8/group): (1) maternal intramuscular injection of betamethasone; (2) intraamniotic lipopolysaccharide; (3) betamethasone + lipopolysaccharide; and (4) intraamniotic + intramuscular saline (controls)...
December 21, 2017: American Journal of Obstetrics and Gynecology
Yien Lai, Gangadhara Sundar, Manotosh Ray
Purpose: To compare the surgical outcome of excision of giant papillae with and without amniotic membrane in a patient with bilateral medically refractory giant papillary conjunctivitis (GPC). Observations: 27-year-old Chinese lady presented with bilateral itchy eyes, discomfort and fullness of upper lids for past two years. She was a long-term contact lens user but stopped completely 2 years ago. Not a known atopic, she had unusually large giant papillae involving both upper tarsal conjunctiva...
December 2017: American Journal of Ophthalmology Case Reports
L-B Chang, S-Y Peng, C-J Chou, Y-J Chen, J-S Shiu, P-A Tu, S-X Gao, Y-C Chen, T-K Lin, S-C Wu
Amniotic fluid is a rich source of multipotent mesenchymal stem cells (MSCs). Amniotic fluid stem cells (AFSCs) have become a new source of stem cells; they have low immunogenicity and are easily harvested. For this reason, they may be useful in clinical tissue engineering. Moreover, AFSCs have anti-inflammatory properties and can repair tissues. This study evaluated the utility of AFSC injection to treat bilateral ovarian dystrophy in Holstein-Friesian cows. Bovine AFSCs (BAFSCs) were collected at slaughter from Holstein-Friesian cows during the third or fourth month of pregnancy and cultured in vitro...
April 2018: Reproduction in Domestic Animals, Zuchthygiene
Kanakeswary Karisnan, Tanzila Mahzabin, Anthony J Bakker, Yong Song, Peter B Noble, J Jane Pillow, Gavin Jon Pinniger
The preterm diaphragm is functionally immature compared to its term counterpart. In utero inflammation further exacerbates preterm diaphragm dysfunction. We hypothesized that preterm lambs are more vulnerable to in utero inflammation induced diaphragm dysfunction compared with term lambs. Pregnant ewes received intra-amniotic (IA) injections of saline or 10mg lipopolysaccharide (LPS) 2d or 7d prior to delivery at 121d (preterm) or 145d (term) gestation. Diaphragm contractile function was assessed in vitro. Plasma cytokines and diaphragm myosin heavy chain (MHC) isoforms and oxidative stress were evaluated...
December 6, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
S Sedrakyan, V Villani, S Da Sacco, N Tripuraneni, S Porta, A Achena, M Lavarreda-Pearce, A Petrosyan, H Soloyan, R E De Filippo, B Bussolati, L Perin
Injection of amniotic fluid stem cells (AFSC) delays the course of progression of renal fibrosis in animals with Alport Syndrome, enhancing kidney function and improving survival. The mechanisms responsible for these protective outcomes are still largely unknown. Here, we showed that vascular endothelial growth factor (VEGF) signaling within the glomeruli of Alport mice is strongly elevated early on in the disease, causing glomerular endothelial cell damage. Intraventricular injected AFSC that homed within the glomeruli showed strong modulation of the VEGF activity, particularly in glomerular endothelial cells...
December 4, 2017: Scientific Reports
María Isabel Relimpio-López, María Gessa-Sorroche, Antonio Manuel Garrido-Hermosilla, Concepción Díaz-Ruiz, Jesús Montero-Iruzubieta, Jaime Etxebarría-Ecenarro, Diego Ruiz-Casas, Enrique Rodríguez-de-la-Rúa-Franch
PURPOSE: To present the different evolution of 2 cases of endophthalmitis caused by Fusarium solani, an aggressive filamentous fungus, depending on the medical and surgical treatment performed. METHODS: We present 2 cases of endophthalmitis caused by Fusarium solani. Topical, intrastromal, intravitreal, and systemic antifungal treatment (natamycin, voriconazole, amphotericin B) failed in both cases. Corneal perforation took place in one of them, being unsuccessfully treated with cyanoacrylate and several amniotic membrane transplants...
November 30, 2017: Ophthalmologica. Journal International D'ophtalmologie
Qiuwan Zhang, Shixia Bu, Junyan Sun, Minhua Xu, Xiaofen Yao, Kunyan He, Dongmei Lai
BACKGROUND: Human amniotic epithelial cells (hAECs) are attractive candidates for regenerative medical therapy, with the potential to replace deficient cells and improve functional recovery after injury. Previous studies have demonstrated that transplantation of hAECs effectively alleviate chemotherapy-induced ovarian damage via inhibiting granulose cells apoptosis in animal models of premature ovarian failure/insufficiency (POF/POI). However, the underlying molecular mechanism accounting for hAECs-mediated ovarian function recovery is not fully understood...
November 28, 2017: Stem Cell Research & Therapy
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