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placental angiogenic factors

Jing Zhou, Nan-Nan Wu, Rui-Li Yin, Wei Ma, Cen Yan, Ying-Mei Feng, Chuan-Hai Zhang, Dong Zhao
Gestational diabetes mellitus (GDM) is a type of diabetes and occurs during pregnancy. Brown adipose tissue (BAT) improves glucose homeostasis and mitigates insulin resistance, however, its activity is reduced in GDM. Placenta growth factor (PlGF) is an angiogenic factor produced by placental trophoblasts. Nevertheless, whether and how PlGF could affect BAT function in GDM are not defined. To investigate this question, 91 non-diabetic pregnant participants and 73 GDM patients were recruited to Gynaecology and Obstetrics Centre in Lu He hospital...
October 2, 2018: Biochemical and Biophysical Research Communications
Jacqueline G Parchem, Keizo Kanasaki, Megumi Kanasaki, Hikaru Sugimoto, Liang Xie, Yuki Hamano, Soo Bong Lee, Vincent H Gattone, Samuel Parry, Jerome F Strauss, Vesna D Garovic, Thomas F McElrath, Karen H Lu, Baha M Sibai, Valerie S LeBleu, Peter Carmeliet, Raghu Kalluri
Preeclampsia remains a clinical challenge due to its poorly understood pathogenesis. A prevailing notion is that increased placental production of soluble fms-like tyrosine kinase-1 (sFlt-1) causes the maternal syndrome by inhibiting proangiogenic placental growth factor (PlGF) and VEGF. However, the significance of PlGF suppression in preeclampsia is uncertain. To test whether preeclampsia results from the imbalance of angiogenic factors reflected by an abnormal sFlt-1:PlGF ratio, we studied PlGF knockout (KO; Pgf-/-) mice and noted that while sFlt-1 was significantly elevated in pregnancy, the mice did not develop signs or sequelae of preeclampsia...
September 4, 2018: Journal of Clinical Investigation
Do-Hyun Kim, Seung Han Shin, Ee-Kyung Kim, Han-Suk Kim
OBJECTIVES: To investigate whether the levels of angiogenic factors in cord blood are associated with the development of bronchopulmonary dysplasia (BPD) in preterm infants with maternal preeclampsia. STUDY DESIGN: This retrospective cohort study included 199 singleton infants (gestational age < 32 weeks), including the preeclampsia group (59 infants) with severe/moderate BPD (24 infants) or no/mild BPD (35 infants) and the no preeclampsia group (140 infants)...
July 2018: Pregnancy Hypertension
Sarosh Rana, Saira Salahuddin, Ariel Mueller, Anders H Berg, Ravi I Thadhani, S Ananth Karumanchi
There is an urgent need for biomarkers that can help stratify women with suspected preeclampsia (PE) for the subsequent appearance of PE with severe features (sPE), to improve risk assessment and direct monitoring related to complications of sPE. Elevated levels of circulating anti-angiogenic factors like soluble fms-like tyrosine kinase 1 (sFlt1) and decreased free levels of pro-angiogenic factors such as placental growth factor (PlGF) are associated with adverse outcomes related to preeclampsia (PE). Here, we report in a single-center prospective study (N = 402) that plasma levels of these circulating angiogenic markers predict sPE within two weeks among women presenting with suspected PE in the preterm period (<37 weeks)...
July 2018: Pregnancy Hypertension
Fiona C Brownfoot, Stephen Tong, Natalie J Hannan, Ping Cannon, Vi Nguyen, Tu'uhevaha J Kaitu'u-Lino
OBJECTIVES: To examine the effect of sildenafil on level of antiangiogenic proteins of preeclampsia. Firstly to examine the effect of sildenafil on serum biomarkers in a patient with preterm preeclampsia. Secondly, to examine the effect of sildenafil on sFlt-1 and soluble endoglin secretion from primary trophoblasts and placental explants. STUDY DESIGN: The clinical team administered 50 mg tds sildenafil to a 26-year-old primigravid woman with severe preeclampsia at the threshold of viability (24 3/7 weeks gestation) and we collected bloods to examine the effect of slidenafil on antiangiogenic factors sFlt-1 and soluble endoglin (sENG), pro-angiogenic factor PlGF and vascular cell adhesion molecule 1 (VCAM-1) and endothelin-1 (ET1)...
July 2018: Pregnancy Hypertension
Lena Heidi Bækgaard Thorsen, Louise Bjørkholt Andersen, Anna Birukov, Sine Lykkedegn, Ralf Dechend, Jan Stener Jørgensen, Henrik Thybo Christesen
OBJECTIVE: To investigate the predictive performance of placental growth factor (PlGF) and soluble FMS-like kinase 1 (sFlt-1) on birth weight and small for gestational age (SGA), in a large, population-based cohort. METHODS: Women enrolled in the population-based, prospective Odense Child Cohort Study with early (GA < 20 weeks) and/or late (≥ 20 weeks) pregnancy blood samples (n = 1937) were included. The association between log-transformed values of the biomarkers and birth weight Z-score was studied using multivariate regression models...
September 3, 2018: Journal of Maternal-fetal & Neonatal Medicine
Nadia Sarween, Mark T Drayson, James Hodson, Ellen M Knox, Timothy Plant, Clara J Day, Graham W Lipkin
PROBLEM: Pre-eclampsia (PE) is a leading cause of maternal and foetal morbidity worldwide. Given the implication of immune mechanisms, we compared markers of humoral immunity in PE and their relationship to circulating markers of inflammation, angiogenic factors, and renal function. METHOD OF STUDY: Serum samples from 88 previously healthy women admitted to hospital with PE and 107 healthy pregnant controls at term were analysed for serum immunoglobulins (Ig), including IgG subclasses and free light chain (sFLC) levels, beta-2 microglobulin (B2-M), high-sensitivity C-reactive protein (HS-CRP), albumin, complement proteins (C3 & C4), creatinine, cystatin-C and the ratio of soluble fms-like tyrosine kinase-1 (sFLT-1) and placental growth factor (PlGF)...
August 31, 2018: American Journal of Reproductive Immunology: AJRI
Tayyaba Gul Malik, Syed Shoaib Ahmed, Roquyya Gul, Eiman Ayesha
OBJECTIVE: To compare the serum proangiogenic biomarkers in diabetic patients suffering from with and without diabetic retinopathy (DR). STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Arif Memorial Teaching Hospital, Lahore, Pakistan and Institute of Molecular Biology and Biotechnology/Centre for Research in Molecular Medicine, The University of Lahore, Lahore, Pakistan, from March to December 2017. METHODOLOGY: Forty patients with DR were included in group A and 15 patients without retinopathy (controls) were included in group B...
September 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Adrian C Eddy, Gene L Bidwell, Eric M George
Preeclampsia is a pregnancy-induced hypertensive disorder resulting from abnormal placentation, which causes factors such as sFlt-1 to be released into the maternal circulation. Though anti-hypertensive drugs and magnesium sulfate can be given in an effort to moderate symptoms, the syndrome is not well controlled. A hallmark characteristic of preeclampsia, especially early-onset preeclampsia, is angiogenic imbalance resulting from an inappropriately upregulated sFlt-1 acting as a decoy receptor binding vascular endothelial growth factor (VEGF) and placental growth factor (PlGF), reducing their bioavailability...
August 25, 2018: Biology of Sex Differences
Takashi Mitsui, Kazumasa Tani, Jota Maki, Takeshi Eguchi, Shoko Tamada, Eriko Eto, Kei Hayata, Hisashi Masuyama
Abnormal glucose metabolism during pregnancy is an established risk factor for preeclampsia (PE). Disruption of the balance between placental angiogenic factors is linked to PE pathophysiology. We examined whether hypoxia-induced factor-1α (HIF-1α) and protein kinase Cβ (PKCβ) are involved in the regulation of placental angiogenic factors under high-glucose conditions in vitro. The human choriocarcinoma cell lines BeWo and JEG-3, and the human trophoblast cell line HTR-8/SVneo were cultured with 10 and 25 mmol/L glucose [control glucose group (CG) and high-glucose group (HG), respectively]...
August 2018: Acta Medica Okayama
Vanessa R Kay, Matthew T Ratsep, Lindsay S Cahill, Andrew F Hickman, Bruno Zavan, Margaret E Newport, Jacob Ellegood, Christine L Laliberte, James N Reynolds, Peter Carmeliet, Chandrakant Tayade, John G Sled, B Anne Croy
Preeclampsia, a hypertensive syndrome occurring in 3-5% of human pregnancies, has lifelong health consequences for the fetus. Cognitive ability throughout life is altered and adult stroke risk is increased in these offspring. One potential etiological factor for altered brain development is low concentrations of pro-angiogenic placental growth factor (PGF). Impaired PGF production may promote an anti-angiogenic fetal environment during neural and cerebrovascular development. We previously reported delayed vascularization of the hindbrain, altered retinal vascular organization and less connectivity in the circle of Willis in Pgf-/- mice...
August 17, 2018: Physiological Genomics
Ridwan A Putra, Jusuf S Effendi, Wiryawan Permadi, Ria Bandiara, Prima N Fauziah
Preeclampsia is the major cause of both maternal and neonatal morbidity and mortality. Its insidence remains high and the management has not been established yet because its etiology and pathophysiological are still poorly understood. Theories regarding etiopathogenesis and management of preeclampsia have been postulated yet it remains controversial. Placental ischemic and angiogenic imbalance are suggested to be predisposing factors of preeclampsia. It is thereby targeted in prevention of preeclampsia. Unfortunately, both primary and secondary prevention using various supplements and drugs fails to exhibit good outcome...
July 30, 2018: Cellular and Molecular Biology
Peter Heiduschka, Tanja Plagemann, Lu Li, Anne F Alex, Nicole Eter
BACKGROUND: Anti-vascular endothelial growth factor (VEGF) drugs are an option for the treatment of retinopathy of prematurity (ROP). Blocking of other angiogenic factors is also of interest. We therefore investigated in which effects would result blocking of placental growth factor (PlGF). METHODS: C57BL/6 mice were exposed to 75% oxygen from P7 to P12. Intravitreal injections were performed at P12. Mice of control groups remained untouched after oxygen treatment, or phosphate buffered saline or neutral IgG molecules were injected...
August 2, 2018: Clinical & Experimental Ophthalmology
Bernadette M M Zwaans, Sarah N Bartolone, Michael B Chancellor, Heinz Nicolai, Laura E Lamb
OBJECTIVES: To determine if the vascular damage in bladders of prostate cancer survivors with radiation cystitis can be detected through altered angiogenic growth factors in urine. METHODS: Urine samples from prostate cancer survivors with a history of external beam radiation therapy were tested for a panel of angiogenic growth factors by Luminex assay. Urine creatinine levels were measured through HPLC. Through a patient survey, data on patient demographics, radiation history and urinary symptoms were collected...
July 27, 2018: Urology
Michael A Lavor, Georgina M Michael, Yeabsera G Tamire, Nicole D Dorofee
Introduction: Meshed split-thickness skin grafting represents a rapid and effective technique for surgical wound closure. Factors such as ongoing inflammation, microbial colonization, and a poorly vascularized wound bed increase the rate of skin autograft failure up to 33%. Because of the inherent angiogenic, anti-inflammatory, antimicrobial, and antifibrotic properties of human placental membranes, the complementary use of human placental membranes may promote graft survival and improve success rate for complete ulcer resolution...
2018: Eplasty
Enoch Odame Anto, William K B A Owiredu, Samuel Asamoah Sakyi, Cornelius Archer Turpin, Richard K D Ephraim, Linda Ahenkorah Fondjo, Christian Obirikorang, Eric Adua, Emmanuel Acheampong
BACKGROUND: Advanced maternal age (AMA) has been associated with negative pregnancy outcomes. Oxidative stress (OS) and defective placental dysfunction are contributing factors. This study determined the association between AMA and adverse pregnancy outcomes, OS biomarkers and angiogenic growth mediators (AGMs) in normal pregnancies. METHODS: This prospective cohort study conducted at the Obstetrics and Gynaecology (O&G) Department of the Komfo Anokye Teaching Hospital (KATH) finally included 175 normal pregnant women comprising, 58 AMA (35-45 years), 55 (30-34 years) and 62 optimal childbearing age (20-29 years)...
2018: PloS One
Aeyung Kim, Jin Yeul Ma
Rhaponticin (RA; 3'5-dihydroxy-4'-methoxystilbene 3-O-β-D‑glucopyranoside) is a component isolated from various medicinal herbs including Rheum undulatum L. RA has been reported to be an effective treatment for allergy, diabetes, thrombosis, liver steatosis, lung fibrosis and colitis. In addition, RA effectively inhibits tumor growth and induces apoptosis; however, the effects of RA, at non-cytotoxic doses, on the metastasis and angiogenesis of malignant cancer cells have, to be the best of our knowledge, not been identified...
September 2018: International Journal of Oncology
Anita Virtanen, Outi Huttala, Kati Tihtonen, Tarja Toimela, Tuula Heinonen, Jukka Uotila
OBJECTIVE: The purpose of the study was to determine the angiogenic capacity of sera in early and late pregnancy and in umbilical blood serum after childbirth, and to define how angiogenic properties assessed in a functional in vitro test are related to individual angiogenic proteins in six women with pre-eclampsia and in six healthy pregnant controls. METHODS: Maternal first and third trimester serum samples, and umbilical blood samples after childbirth, were tested in an in vitro human adipose stromal cell-human umbilical vein endothelial cell (hASC-HUVEC) vasculogenesis/angiogenesis assay...
July 12, 2018: Angiogenesis
Nobuhiro Terao, Hideki Koizumi, Kentaro Kojima, Tetsuya Yamagishi, Yuji Yamamoto, Kengo Yoshii, Koji Kitazawa, Asako Hiraga, Munetoyo Toda, Shigeru Kinoshita, Chie Sotozono, Junji Hamuro
This study investigated the pathophysiological features of pachychoroid neovasculopathy (PNV) and neovascular age-related macular degeneration (nAMD) by analysing and comparing cytokine profiles in aqueous humour (AH) collected from 18 PNV, 18 nAMD and 11 control patients. Responses to intravitreal injection of aflibercept were also analysed in the PNV and nAMD groups. In the PNV group, vascular endothelial growth factor (VEGF)-A was significantly lower than in the nAMD group (p = 0.03) but was almost identical to that in the control group (p = 0...
July 12, 2018: Scientific Reports
Antonio Cubillo, Rafael Álvarez-Gallego, Manuel Muñoz, Gregory Pond, Sofía Perea, Gema Sánchez, María Martin, Jesús Rodríguez-Pascual, Elena Garralda, Estela Vega, Emilio de Vicente, Yolanda Quijano, César Muñoz, Lisardo Ugidos, Rodrigo A Toledo, Manuel Hidalgo
BACKGROUND: Previous studies have shown that metastatic colorectal carcinoma (mCRC) patients treated with bevacizumab, experience variation in the plasma levels of angiogenesis growth factors and related cytokines, called angiogenic switch (AS). The aim of the present study was to analyze the relationship between AS and the clinical response during standard chemotherapy-bevacizumab treatment. PATIENTS AND METHODS: Patients with Eastern Cooperative Oncology Group 0-1 mCRC were eligible...
July 2, 2018: American Journal of Clinical Oncology
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