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placental angiogenic factors

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https://www.readbyqxmd.com/read/29656983/prophylaxis-and-treatment-of-foetal-growth-restriction
#1
REVIEW
Aamod Nawathe, Anna L David
Foetal growth restriction (FGR) and associated placental pathologies such as pre-eclampsia and stillbirth arise in early pregnancy when inadequate remodelling of maternal spiral arteries leads to persistent high-resistance low-flow uteroplacental circulation. Current interventions concentrate on targeting the placental ischaemia-reperfusion injury and oxidative stress associated with an imbalance in angiogenic/anti-angiogenic factors. Recent meta-analyses confirm that aspirin modestly reduces the risk for small-for-gestational-age pregnancy in high-risk women...
February 23, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29627841/preeclampsia-as-a-form-of-type-5-cardiorenal-syndrome-an-underrecognized-entity-in-women-s-cardiovascular-health
#2
Janani Rangaswami, Mario Naranjo, Peter A McCullough
BACKGROUND: Preeclampsia is a multisystem vascular disorder of pregnancy that remains a leading cause of maternal and fetal morbidity and mortality. Preeclampsia remains an underrecognized risk factor for future cardiovascular and kidney disease in women and represents the confluence of preexisting vascular risk factors with superimposed endothelial injury from placental mediated anti-angiogenic factors. SUMMARY: This review highlights the close relationship between preeclampsia and future cardiovascular and kidney disease...
April 4, 2018: Cardiorenal Medicine
https://www.readbyqxmd.com/read/29569955/placental-growth-factor-reverses-decreased-vascular-and-uteroplacental-mmp-2-and-9-and-increased-mmp-1-and-7-and-collagen-i-and-iv-in-hypertensive-pregnancy
#3
Zongli Ren, Ning Cui, Minglin Zhu, Raouf A Khalil
Preeclampsia is a complication of pregnancy manifested as maternal hypertension (HTN-Preg) and fetal growth restriction (IUGR), with unclear mechanism. Placental ischemia increases antiangiogenic soluble fms-like tyrosine-kinase-1 (sFlt-1) relative to angiogenic placental-growth-factor (PlGF); however, the molecular targets are unclear. To test the hypothesis that placental ischemia-induced changes in sFlt-1 and PlGF target vascular and uteroplacental matrix metalloproteinases (MMPs), we tested if raising sFlt-1/PlGF ratio by infusing sFlt-1 (10 µg/kg/day) in pregnant (Preg) rats increases blood pressure (BP) and alters MMPs, and if correcting sFlt-1/PlGF by infusing PlGF (20 µg/kg/day) in Preg rats with reduced uterine perfusion pressure (RUPP) improves BP and reverses the changes in MMPs...
March 23, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29562916/integration-of-induced-pluripotent-stem-cell-derived-endothelial-cells-with-polycaprolactone-gelatin-based-electrospun-scaffolds-for-enhanced-therapeutic-angiogenesis
#4
Richard P Tan, Alex H P Chan, Katarina Lennartsson, Maria M Miravet, Bob S L Lee, Jelena Rnjak-Kovacina, Zoe E Clayton, John P Cooke, Martin K C Ng, Sanjay Patel, Steven G Wise
BACKGROUND: Induced pluripotent stem-cell derived endothelial cells (iPSC-ECs) can be generated from any somatic cell and their iPSC sources possess unlimited self-renewal. Previous demonstration of their proangiogenic activity makes them a promising cell type for treatment of ischemic injury. As with many other stem cell approaches, the low rate of in-vivo survival has been a major limitation to the efficacy of iPSC-ECs to date. In this study, we aimed to increase the in-vivo lifetime of iPSC-ECs by culturing them on electrospun polycaprolactone (PCL)/gelatin scaffolds, before quantifying the subsequent impact on their proangiogenic function...
March 21, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29562773/placental-stem-cells-from-domestic-animals-translational-potential-and-clinical-relevance
#5
B Barboni, V Russo, P Berardinelli, A Mauro, L Valbonetti, H Sanyal, A Canciello, L Greco, A Muttini, V Gatta, L Stuppia, M Mattioli
The field of regenerative medicine is moving toward clinical practice in veterinary science. In this context, placenta-derived stem cells isolated from domestic animals have covered a dual role, acting both as therapies for patients and as a valuable cell source for translational models. The biological properties of placenta-derived cells, comparable among mammals, make them attractive candidates for therapeutic approaches. In particular, stemness features, low immunogenicity, immunomodulatory activity, multilineage plasticity, and their successful capacity for long-term engraftment in different host tissues after autotransplantation, allo-transplantation, or xenotransplantation have been demonstrated...
January 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29543340/plgf-and-sflt-1-levels-in-patients-with-non-transfusion-dependent-thalassemia-correlations-with-markers-of-iron-burden-and-endothelial-dysfunction
#6
Charikleia Kelaidi, Antonis Kattamis, Filia Apostolakou, Christos Poziopoulos, Christina Lazaropoulou, Polyxeni Delaporta, Ino Kanavaki, Ioannis Papassotiriou
BACKGROUND: Levels of the angiogenic cytokines Placental Growth Factor (PlGF) and soluble Fms-Like Tyrosine Kinase-1 (sFlt-1) and the angiogenic balance, expressed by sFlt-1/PlGF ratio, are perturbed in Sickle Cell Disease and iron overload, but they have not been evaluated in Non-Transfusion-Dependent Thalassemia (NTDT). PATIENTS AND METHODS: We measured levels of PlGF, sFlt-1 and vWF:antigen in patients with NTDT of beta thalassemia genotype, and correlated them with erythrocytic indices and markers of iron overload, inflammation and tissue hypoxia...
March 15, 2018: European Journal of Haematology
https://www.readbyqxmd.com/read/29532881/vegf-pathway-targeting-drugs-induce-evasive-adaptation-by-activation-of-neuropilin-1-cmet-in-colon-cancer-cells
#7
Chisato Tomida, Naoko Yamagishi, Hikaru Nagano, Takayuki Uchida, Ayako Ohno, Katsuya Hirasaka, Takeshi Nikawa, Shigetada Teshima-Kondo
Anti-angiogenic therapies targeting vascular endothelial growth factor (VEGF) and its receptor (VEGF-R) are important treatments for a number of human malignancies, including colorectal cancers. However, there is increasing evidence that VEGF/VEGF-R inhibitors promote the adaptive and evasive resistance of tumor cells to the therapies. The mechanism by which the cancer cells become resistant remains unclear. One potential mechanism is that VEGF/VEGF-R blockers directly act on tumor cells independently of anti-angiogenic effects...
April 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29523276/analytical-validation-of-soluble-fms-like-tyrosine-and-placental-growth-factor-assays-on-b%C3%A2-r%C3%A2-a%C3%A2-h%C3%A2-m%C3%A2-s-kryptor-compact-plus-automated-immunoassay-platform
#8
Siaw Li Chan, Sarosh Rana, Sireesha Chinthala, Saira Salahuddin, Kiang-Teck J Yeo
BACKGROUND: Preeclampsia is one of the leading hypertensive disorders of pregnancy. Angiogenic biomarkers such as anti-angiogenic factor soluble fms-like tyrosine kinase 1 (sFlt1) and pro-angiogenic factor placental growth factor (PlGF) are involved in the pathophysiology of preeclampsia. OBJECTIVE: The aim of this study is to validate the analytical performance of sFlt1 and PlGF on the B·R·A·H·M·S KRYPTOR Compact Plus (ThermoFisher Scientific). STUDY DESIGN: We examined K2 -EDTA plasma samples from 50 patients on B·R·A·H·M·S KRYPTOR Compact Plus, an automated immunoassay platform...
January 2018: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29521599/celecoxib-restores-angiogenic-factor-expression-at-the-maternal-fetal-interface-in-the-bph-5-mouse-model-of-preeclampsia
#9
Dorien Reijnders, Chin-Chi Liu, Xinjing Xu, Anna Zhao, Kelsey Olson, Scott D Butler, Nataki C Douglas, Jenny L Sones
Preeclampsia (PE), a hypertensive disease of pregnancy, is a leading cause of fetal and maternal morbidity/mortality. Early angiogenic and inflammatory disturbances within the placenta are thought to underlie the development of the maternal PE syndrome and poor pregnancy outcomes. However, the exact etiology remains largely unknown. Here, we use the BPH/5 mouse model of PE to elucidate the way in which inflammation early in pregnancy contributes to abnormal expression of angiogenic factors at the maternal-fetal interface...
March 9, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29512738/poly-adp-ribose-polymerase-inhibitor-olaparib-hampers-placental-growth-factor-driven-activation-of-myelomonocytic-cells
#10
Pedro Miguel Lacal, Maria Grazia Atzori, Federica Ruffini, Lucio Tentori, Grazia Graziani
The vascular endothelial growth factor receptor-1 (VEGFR-1) is a tyrosine kinase receptor activated by the angiogenic factors VEGF‑A and placental growth factor (PlGF). While VEGF‑A binds to both VEGFR‑1 and VEGFR‑2, PlGF interacts exclusively with VEGFR‑1 triggering a signaling pathway involved in: i) tumor‑associated angiogenesis; ii) chemotaxis and invasion of the extracellular matrix (ECM) by cancer cells; and iii) mobilization of bone marrow‑derived myeloid cells that generate tumor‑associated macrophages...
March 5, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29473285/angiogenic-factors-in-pre-eclampsia-implications-for-clinical-practice
#11
S A Karumanchi
No abstract text is available yet for this article.
February 23, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29469945/extravillous-trophoblast-invasion-in-placenta-accreta-is-associated-with-differential-local-expression-of-angiogenic-and-growth-factors-a-cross-sectional-study
#12
Christina M Duzyj, Irina A Buhimschi, Christine A Laky, Genevieve Cozzini, Guomao Zhao, Mark Wehrum, Catalin S Buhimschi
OBJECTIVE: Placenta accreta is clinically associated with maternal uterine scar. Our objective was to investigate the biochemical contribution of maternal scarring to hyperinvasive trophoblast. We hypothesized that trophoblast over-invasion in placenta accreta is associated with aberrant invasion-site signaling of growth and angiogenic factors known to be involved in wound healing and promotion of cell invasion through the epithelial to mesenchymal cellular program. DESIGN: Cross-sectional series...
February 22, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29467515/infant-size-and-the-association-between-maternal-circulating-angiogenic-factors-and-preeclampsia
#13
Michael C Honigberg, Ellen W Seely, Ann M Thomas, Kee-Hak Lim, Samuel Parry, Thomas F McElrath
OBJECTIVE: To assess the effect of infant size as a marker of placental function on the association between preeclampsia and the ratio of soluble fms-like tyrosine kinase 1 (sFlt-1) to placental growth factor (PlGF). STUDY DESIGN: The angiogenic factors sFlt-1 and PlGF were measured prospectively at 26 weeks gestation in 2322 women. Pregnancies were stratified by whether or not they were complicated by preeclampsia, the timing of delivery, and birthweight Z-score...
February 21, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29465424/nutritional-approach-to-preeclampsia-prevention
#14
Najate Achamrah, Agnès Ditisheim
PURPOSE OF REVIEW: Although not fully understood, the physiopathology of preeclampsia is thought to involve an abnormal placentation, diffuse endothelial cell dysfunction and increased systemic inflammation. As micronutrients play a key role in placental endothelial function, oxidative stress and expression of angiogenic factors, periconceptional micronutrient supplementation has been proposed to reduce the risk of preeclampsia. However, recent studies reported conflicting results. RECENT FINDINGS: Calcium intake (>1 g/day) may reduce the risk of preeclampsia in women with low-calcium diet...
May 2018: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/29452885/somatolactogens-and-diabetic-retinopathy
#15
REVIEW
Kevin Christian Bermea, Alejandro Rodríguez-García, Andrew Tsin, Hugo Alberto Barrera-Saldaña
IMPORTANCE: Diabetic retinopathy (DR) is one of the most common of all diabetic complications. The number of people with DR in the United States is expected to increase to 16 million by 2050. DR is the leading cause of blindness among working-age adults in many different countries, including the United States. In later DR stages, neovascularization is associated with extensive retinal capillary non-perfusion and vitreo-proliferation leading to retinal detachment. This neovascularization is orchestrated by an imbalance of growth factors in the retina from which somatolactogens (pituitary growth hormone, GH-N; placental growth hormone, GH-V; prolactin, PRL; and placental lactogen, PL, also referred as chorionic somatomammotropin, CSH), may play an important role...
February 6, 2018: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29439617/low-density-lipoprotein-receptor-related-protein-6-is-essential-for-trophoblast-survival-and-invasion
#16
Lei Li, Jipeng Wan, Jing Xue, Hongyan Li, Shan Wang, Qian Zhou, Yu Zhou, Xietong Wang
Remodeling of maternal spiral artery after the implantation of embryo relies on tightly regulated trophoblast functions and is pivotal to ensure the success of pregnancy. Low-density lipoprotein receptor-related protein 6 (LRP6) is implicated in angiogenesis and several vascular diseases, but its function in trophoblast regulation is still not fully understood. We aimed to investigate the involvement of LRP6 in trophoblast functions during maternal spiral artery remodeling. HTR-8/SVneo cells, a trophoblast cell line, were employed to examine the impact of LRP6 knockdown on proliferation, apoptosis, and migration, as well as invasion and tube formation...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29392826/reduced-angiogenic-factor-expression-in-intrauterine-fetal-growth-restriction-using-semiquantitative-immunohistochemistry-and-digital-image-analysis
#17
Thushari I Alahakoon, Weiyi Zhang, Susan Arbuckle, Kewei Zhang, Vincent Lee
AIM: To localize, quantify and compare angiogenic factors, vascular endothelial growth factor (VEGF), placental growth factor (PlGF), as well as their receptors fms-like tyrosine kinase receptor (Flt-1) and kinase insert domain receptor (KDR) in the placentas of normal pregnancy and complications of preeclampsia (PE), intrauterine fetal growth restriction (IUGR) and PE + IUGR. METHODS: In a prospective cross-sectional case-control study, 30 pregnant women between 24-40 weeks of gestation, were recruited into four clinical groups...
February 1, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29376143/bevacizumab-injection-in-patients-with-neovascular-age-related-macular-degeneration-increases-angiogenic-biomarkers
#18
Thiago Cabral, Luiz H Lima, Luiz Guilherme M Mello, Júlia Polido, Éverton P Correa, Akiyoshi Oshima, Jimmy Duong, Pedro Serracarbassa, Caio V Regatieri, Vinit B Mahajan, Rubens Belfort
Purpose: To evaluate the expression of 19 angiogenic biomarkers in the aqueous humor before and after intravitreal bevacizumab injection (IVB) in eyes with neovascular age-related macular degeneration (AMD). Design: Prospective, noncomparative, interventional case series. Participants: Twenty-three eyes of 23 treatment-naïve patients with choroidal neovascularization (CNV) secondary to neovascular AMD. Methods: Eyes were diagnosed with CNV secondary to neovascular AMD and were treated with 3 monthly IVBs...
January 2018: Ophthalmology Retina
https://www.readbyqxmd.com/read/29330447/human-placental-derived-adherent-stromal-cells-co-induced-with-tnf-%C3%AE-and-ifn-%C3%AE-inhibit-triple-negative-breast-cancer-in-nude-mouse-xenograft-models
#19
Hoshea Allen, Niva Shraga-Heled, Michal Blumenfeld, Tamar Dego-Ashto, Dana Fuchs-Telem, Ariel Gilert, Zami Aberman, Racheli Ofir
Culturing 3D-expanded human placental-derived adherent stromal cells (ASCs) in the presence of tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) transiently upregulated the secretion of numerous anti-proliferative, anti-angiogenic and pro-inflammatory cytokines. In a 3D-spheroid screening assay, conditioned medium from these induced-ASCs inhibited proliferation of cancer cell lines, including triple-negative breast cancer (TNBC) lines. In vitro co-culture studies of induced-ASCs with MDA-MB-231 human breast carcinoma cells, a model representing TNBC, supports a mechanism involving immunomodulation and angiogenesis inhibition...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29279353/angiogenic-factor-imbalance-precedes-complement-deposition-in-placentae-of-the-bph-5-model-of-preeclampsia
#20
Jennifer L Sones, Audrey A Merriam, Angelina Seffens, Dex-Ann Brown-Grant, Scott D Butler, Anna M Zhao, Xinjing Xu, Carrie J Shawber, Jennifer K Grenier, Nataki C Douglas
Preeclampsia (PE), a hypertensive disorder of pregnancy, is a leading cause of maternal and fetal morbidity and mortality. Although the etiology is unknown, PE is thought to be caused by defective implantation and decidualization in pregnancy. Pregnant blood pressure high (BPH)/5 mice spontaneously develop placentopathies and maternal features of human PE. We hypothesized that BPH/5 implantation sites have transcriptomic alterations. Next-generation RNA sequencing of implantation sites at peak decidualization, embryonic day (E)7...
January 8, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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