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https://www.readbyqxmd.com/read/28810880/nlrp7-contributes-to-in-vitro-decidualization-of-endometrial-stromal-cells
#1
Jyun-Yuan Huang, Pei-Hsiu Yu, Yueh-Chun Li, Pao-Lin Kuo
BACKGROUND: Nucleotide-binding oligomerization domain (NACHT), leucine rich repeat (LRR) and pyrin domain (PYD) 7 containing protein, NLRP7, is a member of the NLR family which serves as innate immune sensors. Mutations and genetic variants of NLRP7 have been found in women with infertility associated conditions, such as recurrent hydatidiform mole, recurrent miscarriage, and preeclampsia. Decidualization of endometrial stromal cells is a hallmark of tissue remodeling to support embryo implantation and proper placental development...
August 15, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28782538/circulating-insulin-like-growth-factor-binding-proteins-in-fish-their-identities-and-physiological-regulation
#2
REVIEW
Munetaka Shimizu, Walton W Dickhoff
Insulin-like growth factor binding proteins (IGFBPs) play crucial roles in regulating the availability of IGFs to receptors and prolong the half-lives of IGFs. There are six IGFBPs present in the mammalian circulation with IGFBP-3 being most abundant. In mammals IGFBP-3 is the major carrier of circulating IGFs, facilitated by forming a ternary complex with IGF and an acid-labile subunit (ALS). IGFBP-1 is generally inhibitory to IGF action by preventing it from interacting with its receptors. In teleosts, the third-round of vertebrate whole genome duplication created paralogs of each IGFBP, except IGFBP-4...
August 3, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28739253/key-differences-between-apoc-iii-regulation-and-expression-in-intestine-and-liver
#3
Gabrielle West, Cayla Rodia, Diana Li, Zania Johnson, Hongli Dong, Alison B Kohan
ApoC-III is a critical cardiovascular risk factor, and humans expressing null mutations in apoC-III are robustly protected from cardiovascular disease. Because of its critical role in elevating plasma lipids and CVD risk, hepatic apoC-III regulation has been studied at length. Considerably less is known about the factors that regulate intestinal apoC-III. In this work, we use primary murine enteroids, Caco-2 cells, and dietary studies in wild-type mice to show that intestinal apoC-III expression does not change in response to fatty acids, glucose, or insulin administration, in contrast to hepatic apoC-III...
July 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28733350/adiponectin-limits-differentiation-and-trophoblast-invasion-in-human-endometrial-cells
#4
Fabien Duval, Esther Dos Santos, Hadia Moindjie, Valérie Serazin, Nelly Swierkowski-Blanchard, François Vialard, Marie-Noëlle Dieudonné
Successful human embryo implantation requires a proper differentiation of endometrial stromal cells (ESCs) into decidual cells, during a process called decidualization. ESCs express specific molecules, as prolactin, insulin-like growth factor-binding protein-1 (IGFBP-1), and connexin-43. Decidual cells are also involved in the control of trophoblast invasion, by secreting various factors, as matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). Adiponectin is an adipokine with insulin-sensitizing, anti-inflammatory, and anti-proliferative effects...
July 21, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28732569/high-insulin-like-growth-factor-binding-protein-1-igfbp-1-is-associated-with-low-relative-muscle-mass-in-older-women
#5
Frej Stilling, Sara Wallenius, Karl Michaëlsson, Christine Dalgård, Kerstin Brismar, Alicja Wolk
OBJECTIVE: Skeletal muscles serve several important roles in maintaining good health. Insulin-like growth factor-1 (IGF-1) is a promoter of protein synthesis in skeletal muscle. Its binding protein, Insulin-like growth factor-binding protein-1 (IGFBP-1) can be one determinant of IGF-1 activity. In the present study we investigate the association between serum IGFBP-1 and muscle mass. DESIGN: Cross-sectional analysis of 4908 women, between 55 and 85years old, participating in the Swedish Mammography Cohort-Clinical...
August 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28727231/nulliparity-is-associated-with-subtle-adverse-metabolic-outcomes-in-overweight-obese-mothers-and-their-offspring
#6
Sumudu N Seneviratne, José G B Derraik, Yannan Jiang, Lesley M E McCowan, Silmara Gusso, Janene B Biggs, Graham K Parry, Valentina Chiavaroli, Wayne S Cutfield, Paul L Hofman
BACKGROUND: We aimed to evaluate metabolic outcomes in overweight/obese nulliparous and multiparous women and their offspring. STUDY DESIGN: Seventy-two overweight and obese women who participated in a randomized controlled trial of exercise in pregnancy were included in the study, comparing 18 nulliparous and 54 multiparous women and their singleton offspring. Women were assessed at 19 and 36 weeks of gestation. Fetal growth was measured using standard obstetric ultrasound techniques...
July 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#7
REVIEW
Michael Tchirikov, Natalia Schlabritz-Loutsevitch, James Maher, Jörg Buchmann, Yuri Naberezhnev, Andreas S Winarno, Gregor Seliger
Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long- and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines...
July 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28688245/the-timing-of-administration-of-exogenous-glucocorticoid-affects-24hour-growth-hormone-secretion-in-children
#8
Ole D Wolthers, Nilani Ramshanker, Carsten Heuck, Jan Frystyk
Exogenous glucocorticoids may suppress linear growth by affecting the diurnal secretory rhythm of GH. OBJECTIVE: To assess whether the timing of exogenous glucocorticoid administration affects GH secretion in children. DESIGN: Four girls and four boys aged 10.6 to 15.8 (mean 13.2) years with normal weight and height and pubertal stages I-IV were studied in an open randomized 2-period cross-over trial, with a 1-day un-in, and two 4-day periods of 5mg prednisolone in the morning or in the evening, respectively, separated by a 3-week washout period...
July 1, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28666856/production-of-recombinant-salmon-insulin-like-growth-factor-binding-protein-1-subtypes
#9
Hanae Tanaka, Gakuto Oishi, Yusuke Nakano, Hiroko Mizuta, Yuta Nagano, Naoshi Hiramatsu, Hironori Ando, Munetaka Shimizu
Insulin-like growth factor (IGF)-I is a growth promoting hormone that exerts its actions through endocrine, paracrine and autocrine modes. Local IGF-I is essential for normal growth, whereas circulating IGF-I plays a crucial role in regulating the production and secretion of growth hormone (GH) by the pituitary gland. These actions of IGF-I are modulated by six insulin-like growth factor binding proteins (IGFBPs). In teleosts, two subtypes of each IGFBP are present due to an extra round of whole-genome duplication...
June 27, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28617951/altered-expression-of-igf-i-system-in-neurons-of-the-inflamed-spinal-cord-during-acute-experimental-autoimmune-encephalomyelitis
#10
Azita Parvaneh Tafreshi, Farideh Talebi, Samira Ghorbani, Claude Bernard, Farshid Noorbakhsh
There is growing evidence that the impaired IGF-I system contributes to neurodegeneration. In this study, we examined the spinal cords of the EAE, the animal model of multiple sclerosis, to see if the expression of the IGF-I system is altered. To induce EAE, C57/BL6 mice were immunized with the Hooke lab MOG kit, sacrificed at the peak of the disease and their spinal cords were examined for the immunoreactivities (ir) of the IGF-I, IGF binding protein-1 (IGFBP-1) and glycogen synthase kinase 3β (GSK3β), as one major downstream molecule in the IGF-I signaling...
October 1, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28609475/increase-in-insulin-like-growth-factor-1-igf-1-and-insulin-like-growth-factor-binding-protein-1-after-supplementation-with-selenium-and-coenzyme-q10-a-prospective-randomized-double-blind-placebo-controlled-trial-among-elderly-swedish-citizens
#11
Urban Alehagen, Peter Johansson, Jan Aaseth, Jan Alexander, Kerstin Brismar
BACKGROUND: Insulin-like growth factor-1(IGF-1) has a multitude of effects besides cell growth and metabolism. Reports also indicate anti-inflammatory and antioxidative effects. The concentrations of IGF-1 decrease with age and during inflammation. As selenium and coenzyme Q10 are involved in both the antioxidative defense and the inflammatory response, the present study aimed to examine the effects of supplementation with selenium and coenzyme Q10 on concentrations of IGF-1 and its binding protein IGFBP-1 in a population showing reduced cardiovascular mortality following such supplementation...
2017: PloS One
https://www.readbyqxmd.com/read/28593921/hyperandrogenism-in-adolescent-girls-relationship-with-the-somatotrophic-axis
#12
María Isabel Hernandez, Patricia López, Ximena Gaete, Claudio Villarroel, Gabriel Cavada, Alejandra Avila, German Iñiguez, Fernando Cassorla
BACKGROUND: During puberty there is a physiologic increase in adrenal and ovarian androgens. It has been suggested that the somatotrophic axis may be related to the development of hyperandrogenism and anovulation in non-obese adult women with polycystic ovarian syndrome (PCOS). The objective of the study was to investigate whether ovarian androgen secretion in young postmenarchal girls is related to the function of their somatotropic axis. METHODS: This was a cross-sectional study of adolescent girls...
May 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28468523/non-essential-and-branched-chain-amino-acids-differentially-regulate-insulin-like-growth-factor-binding-protein-1-production-and-phosphorylation-in-hepg2-cells
#13
Kei Tanaka, Keiji Sakai, Miho Matsushima, Yukiko Matsuzawa, Tomoko Izawa, Yoichi Kobayashi, Mitsutoshi Iwashita
Deprivation of branched-chain amino acids (BCAAs) induces insulin-like growth factor binding protein-1 (IGFBP-1) production in HepG2 cells, while the role of non-essential amino acids (NEAAs) remains unknown. We investigated changes in IGFBP-1 production and phosphorylation induced by NEAAs and also examined its significance on IGF-I activity in HepG2 cells. We demonstrated that decreased BCAAs and increased NEAAs stimulated phosphorylated IGFBP-1 secretion. We also revealed that decreased BCAA-to-NEAA ratios enhanced phosphorylated IGFBP-1 secretion, while changes in the total amount of amino acids (AAs) had no effect...
February 2017: Growth Factors
https://www.readbyqxmd.com/read/28449068/development-of-a-novel-human-recellularized-endometrium-that-responds-to-a-28-day-hormone-treatment
#14
Susan A Olalekan, Joanna E Burdette, Spiro Getsios, Teresa K Woodruff, J Julie Kim
Three dimensional (3D) in vitro models have been established to study the physiology and pathophysiology of the endometrium. With emerging evidence that the native extracellular matrix (ECM) provides appropriate cues and growth factors essential for tissue homeostasis, we describe, a novel 3D endometrium in vitro model developed from decellularized human endometrial tissue repopulated with primary endometrial cells. Analysis of the decellularized endometrium using mass spectrometry analysis revealed an enrichment of cell adhesion molecules, cytoskeletal proteins and ECM proteins such as Collagen IV and Laminin...
April 25, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28443632/erratum-loss-of-mir-542-3p-enhances-igfbp-1-expression-in-decidualizing-human-endometrial-stromal-cells
#15
Hideno Tochigi, Takeshi Kajihara, Yosuke Mizuno, Yumi Mizuno, Shunsuke Tamaru, Yoshimasa Kamei, Yasushi Okazaki, Jan J Brosens, Osamu Ishihara
No abstract text is available yet for this article.
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28435049/exposure-of-decidualized-hiesc-to-low-oxygen-tension-and-leucine-deprivation-results-in-increased-igfbp-1-phosphorylation-and-reduced-igf-i-bioactivity
#16
Majida Abu Shehab, Kyle Biggar, Sahil Sagar Singal, Karen Nygard, Shawn Shun-Cheng Li, Thomas Jansson, Madhulika B Gupta
Phosphorylation of decidual IGFBP-1 enhances binding of IGF-I, limiting the bioavailability of this growth factor which may contribute to reduced placental and fetal growth. The mechanisms regulating decidual IGFBP-1 phosphorylation are incompletely understood. Using decidualized human immortalized endometrial stromal cells we tested the hypothesis that low oxygen tension or reduced leucine availability, believed to be common in placental insufficiency, increase the phosphorylation of decidual IGFBP-1. Multiple reaction monitoring-MS (MRM-MS) was used to quantify IGFBP-1 phosphorylation...
April 21, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28422393/accuracy-and-response-time-of-dual-biomarker-model-of-insulin-like-growth-factor-binding-protein-1-alpha-fetoprotein-amnioquick-duo-in-comparison-to-placental-alpha-microglobulin-1-test-in-diagnosis-of-premature-rupture-of-membranes
#17
George Uchenna Eleje, Euzebus Chinonye Ezugwu, Ahizechukwu Chigoziem Eke, Joseph Ifeanyichukwu Ikechebelu, Chukwuemeka Okwudili Ezeama, Ifeanyichukwu Uzoma Ezebialu, Nnabuike Okechukwu Ojiegbe, Chukwudi Celestine Obiora, Charles Ikechukwu Okafor, Gerald Okanandu Udigwe, Betrand Obi Nwosu, Frank O Ezugwu
AIM: The aim of this study was to determine accuracy and response time of duo of insulin-like growth factor binding protein-1 (IGFBP-1)/alpha-fetoprotein (Amnioquick duo+) versus placental alpha-microglobulin-1 (PAMG-1) in diagnosing premature rupture of membranes (PROM). METHODS: A multicenter prospective study was conducted among women with features suggestive of PROM between 24 and 42 gestational weeks (GW). PROM was confirmed post-delivery based on presence of any two of these criteria: delivery within 48 h to 7 days, chorioamnionitis, membranes overtly ruptured at delivery, and adverse perinatal outcomes strongly correlated with prolonged PROM...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28420208/serum-insulin-like-growth-factor-axis-and-the-risk-of-pancreatic-cancer-systematic-review-and-meta-analysis
#18
Yuanfeng Gong, Bingyi Zhang, Yadi Liao, Yunqiang Tang, Cong Mai, Tiejun Chen, Hui Tang
OBJECTIVE: To investigate the association between serum concentration of insulin-like growth factor (IGF) and the risk of pancreatic cancer (PaC). METHODS: We identified eligible studies in Medline and EMBASE databases (no reference trials from 2014 to 2016) in addition to the reference lists of original studies and review articles on this topic. A summary of relative risks with 95% confidence intervals (CI) was calculated using a random-effects model. The heterogeneity between studies was assessed using Cochran Q and I² statistics...
April 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28361446/does-milk-intake-promote-prostate-cancer-initiation-or-progression-via-effects-on-insulin-like-growth-factors-igfs-a-systematic-review-and-meta-analysis
#19
REVIEW
Sean Harrison, Rosie Lennon, Jeff Holly, Julian P T Higgins, Mike Gardner, Claire Perks, Tom Gaunt, Vanessa Tan, Cath Borwick, Pauline Emmet, Mona Jeffreys, Kate Northstone, Sabina Rinaldi, Stephen Thomas, Suzanne D Turner, Anna Pease, Vicky Vilenchick, Richard M Martin, Sarah J Lewis
PURPOSE: To establish whether the association between milk intake and prostate cancer operates via the insulin-like growth factor (IGF) pathway (including IGF-I, IGF-II, IGFBP-1, IGFBP-2, and IGFBP-3). METHODS: Systematic review, collating data from all relevant studies examining associations of milk with IGF, and those examining associations of IGF with prostate cancer risk and progression. Data were extracted from experimental and observational studies conducted in either humans or animals, and analyzed using meta-analysis where possible, with summary data presented otherwise...
June 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28259137/chronic-endometritis-modifies-decidualization-in-human-endometrial-stromal-cells
#20
Di Wu, Fuminori Kimura, Luyi Zheng, Mitsuaki Ishida, Yoko Niwa, Kimiko Hirata, Akie Takebayashi, Akiko Takashima, Kentaro Takahashi, Ryoji Kushima, Guangmei Zhang, Takashi Murakami
BACKGROUND: Chronic endometritis (CE) is a continuous inflammation of uterine endometrium, and it is usually symptomless. As CE has been thought not to affect the reproductive status and general health of affected women, its significance has not been explored. However, recent studies have shown that CE is related with repeated implantation failures after in vitro fertilization-embryo transfer, unexplained infertility, and recurrent miscarriages. As decidua differentiates to support the implantation process and maintains the pregnancy, we hypothesized that CE may influence the process of decidualization...
March 4, 2017: Reproductive Biology and Endocrinology: RB&E
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