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https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#1
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28324799/modified-masquelet-technique-using-allogeneic-umbilical-cord-derived-mesenchymal-stem-cells-for-infected-non-union-femoral-shaft-fracture-with-a-12-cm-bone-defect-a-case-report
#2
Ismail Hadisoebroto Dilogo, Muhammad Rizqi Adhi Primaputra, Jeanne Adiwinata Pawitan, Isabella Kurnia Liem
INTRODUCTION: Non-union due to large bone loss often causes significant long-term morbidity. We incorporate the use of allogeneic umbilical cord-derived mesenchymal stem cells (UC-MSCs) as part of the diamond concept of regenerative medicine in a case of infected non-union fracture. PRESENTATION OF CASE: We reported a 54-year-old female patient presenting with pain on the right thigh. She was previously diagnosed with a closed fracture of the right femoral shaft and underwent four surgeries before finally being referred to Dr...
March 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28324064/bmp7-induces-uterine-receptivity-and-blastocyst-attachment
#3
Diana Monsivais, Caterina Clementi, Jia Peng, Paul T Fullerton, Renata Prunskaite-Hyyryläinen, Seppo Vainio, Martin M Matzuk
In women, the window of implantation is limited to a brief two- to three- day period characterized by optimal levels of circulating ovarian hormones and a receptive endometrium. Although the window of implantation is assumed to occur 8-10 days after ovulation in women, molecular markers of endometrial receptivity are necessary to determine optimal timing prior to embryo transfer. Previous studies showed that members of the bone morphogenetic protein (BMP) family are expressed in the uterus necessary for female fertility; however, the role of BMP7 during implantation and in late gestation is not known...
January 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323621/smoc-can-act-as-both-an-antagonist-and-an-expander-of-bmp-signaling
#4
J Terrig Thomas, D Eric Dollins, Kristin R Andrykovich, Tehyen Chu, Brian G Stultz, Deborah A Hursh, Malcolm Moos
The matricellular protein SMOC (Secreted Modular Calcium binding protein) is conserved phylogenetically from vertebrates to arthropods. We showed previously that SMOC inhibits bone morphogenetic protein (BMP) signaling downstream of its receptor via activation of mitogen-activated protein kinase (MAPK) signaling. In contrast, the most prominent effect of the Drosophila orthologue, pentagone (pent), is expanding the range of BMP signaling during wing patterning. Using SMOC deletion constructs we found that SMOC-∆EC, lacking the extracellular calcium binding (EC) domain, inhibited BMP2 signaling, whereas SMOC-EC (EC domain only) enhanced BMP2 signaling...
March 21, 2017: ELife
https://www.readbyqxmd.com/read/28315493/an-osteogenesis-angiogenesis-stimulation-artificial-ligament-for-anterior-cruciate-ligament-reconstruction
#5
Hong Li, Jinyan Li, Jia Jiang, Fang Lv, Jiang Chang, Shiyi Chen, Chengtie Wu
To solve the poor healing of polyethylene terephthalate (PET) artificial ligament in bone tunnel, copper-containing bioactive glass (Cu-BG) nanocoatings on PET artificial ligaments were successfully prepared by pulsed laser deposition (PLD). It was hypothesized that Cu-BG coated PET (Cu-BG/PET) grafts could enhance the in vitro osteogenic and angiogenic differentiation of rat bone marrow mesenchymal stem cells (rBMSCs) and in vivo graft-bone healing after anterior cruciate ligament (ACL) reconstruction in a goat model...
March 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28286322/secreted-phosphoprotein-24kd-spp24-inhibits-growth-of-hepatocellular-carcinoma-in-vivo
#6
Lifeng Lao, Jia Shen, Haijun Tian, Guibin Zhong, Samuel S Murray, Jeffrey C Wang
Several studies have shown that secreted phosphoprotein 24kD (Spp24) inhibits tumor growth. However, the effects of spp24 on hepatocellular carcinoma are not quite clear. In this study, we observed the inhibitory effect of spp24 on hepatocellular carcinoma in vivo. A subcutaneous hepatocellular carcinoma mice model was established by using Hep G2 cells. After sacrifice at day 40, tumor growth was assessed and tumor cell apoptosis and tumor cells proliferation were assessed by TUNEL assay and immunochemical analysis, respectively...
March 4, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28266688/the-bmp2-variant-l51p-restores-the-osteogenic-differentiation-of-human-mesenchymal-stromal-cells-in-the-presence-of-intervertebral-disc-cells
#7
A Tekari, R D May, D A Frauchiger, S C Chan, L M Benneker, B Gantenbein
Spinal fusion is hampered by the presence of remaining intervertebral disc (IVD) tissue and leads to spinal non-union. While the exact mechanism remains unknown, we hypothesise that factors preventing disc ossification, such as antagonists of the bone morphogenetic proteins (BMP), could be responsible for this process. The objective of this study was to investigate spinal non-union using an in vitro human model with a focus on the BMP signalling components and to identify factors contributing to the incomplete and delayed ossification...
February 23, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28265457/comprehensive-genetic-exploration-of-selective-tooth-agenesis-of-mandibular-incisors-by-exome-sequencing
#8
Tetsutaro Yamaguchi, Kazuyoshi Hosomichi, Keisuke Yano, Yong-Il Kim, Hirofumi Nakaoka, Ryosuke Kimura, Hirotada Otsuka, Naoko Nonaka, Shugo Haga, Masahiro Takahashi, Tatsuo Shirota, Yoshiaki Kikkawa, Atsushi Yamada, Ryutaro Kamijo, Soo-Byung Park, Masanori Nakamura, Koutaro Maki, Ituro Inoue
Tooth agenesis is described as the absence of one or more teeth. It is caused by a failure in tooth development and is one of the most common human developmental anomalies. We herein report genomic analyses of selective mandibular incisor agenesis (SMIA) using exome sequencing. Two Japanese families with SMIA were subjected to exome sequencing, and family with sequence similarity 65 member A (FAM65), nuclear factor of activated T-cells 3 (NFATC3) and cadherin-related 23 gene (CDH23) were detected. In the follow-up study, 51 Japanese and 32 Korean sporadic patients with SMIA were subjected to exome analyses, and 18 reported variants in PAX9, AXIN2, EDA, EDAR, WNT10A, BMP2 and GREM2 and 27 variants of FAM65, NFATC3 and CDH23 were found in 38 patients...
2017: Human Genome Variation
https://www.readbyqxmd.com/read/28259395/short-communication-tryptic-%C3%AE-casein-hydrolysate-modulates-enteric-nervous-system-development-in-primary-culture
#9
F Cossais, I Clawin-Rädecker, P C Lorenzen, M Klempt
The intestinal tract of the newborn is particularly sensitive to gastrointestinal disorders, such as infantile diarrhea or necrotizing colitis. Perinatal development of the gut also encompasses the maturation of the enteric nervous system (ENS), a main regulator of intestinal motility and barrier functions. It was recently shown that ENS maturation can be enhanced by nutritional factors to improve intestinal maturation. Bioactivity of milk proteins is often latent, requiring the release of bioactive peptides from inactive native proteins...
March 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28243085/continuous-release-of-bone-morphogenetic-protein-2-through-nano-graphene-oxide-based-delivery-influences-the-activation-of-the-nf-%C3%AE%C2%BAb-signal-transduction-pathway
#10
Cheng Zhong, Jun Feng, Xiangjin Lin, Qi Bao
Graphene oxide (GO) has been used as a delivery vehicle for small molecule drugs and nucleotides. To further investigate GO as a smart biomaterial for the controlled release of cargo molecules, we hypothesized that GO may be an appropriate delivery vehicle because it releases bone morphogenetic protein 2 (BMP2). GO characterization indicated that the size distribution of the GO flakes ranged from 81.1 nm to 45,749.7 nm, with an approximate thickness of 2 nm. After BMP2 adsorption onto GO, Fourier-transformed infrared spectroscopy (FTIR) and thermal gravimetric analysis were performed...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28229387/the-effects-of-cerium-valence-states-at-cerium-oxide-coatings-on-the-responses-of-bone-mesenchymal-stem-cells-and-macrophages
#11
Mingyu You, Kai Li, Youtao Xie, Liping Huang, Xuebin Zheng
Ideal orthopedic coatings should trigger good osteogenic response and limited inflammatory response. The cerium valence states in ceria are associated with their anti-oxidative activity and anti-inflammatory property. In the study, we prepared two kinds of plasma sprayed CeO2 coatings with different Ce(4+) concentrations to investigate the effects of Ce valence states on the response of bone mesenchymal stem cells (BMSCs) and macrophage RAW264.7. Both the coatings (CeO2-A and CeO2-B) were characterized via XRD, SEM, and X-ray photoelectron spectroscopy...
February 22, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28222387/baicalein-enhances-the-osteogenic-differentiation-of-human-periodontal-ligament-cells-by-activating-the-wnt-%C3%AE-catenin-signaling-pathway
#12
Li-Jiao Chen, Bi-Bo Hu, Xin-Lian Shi, Man-Man Ren, Wen-Bin Yu, Sheng-Dan Cen, Rong-Dang Hu, Hui Deng
OBJECTIVE: Periodontium regeneration is one of the most important processes for periodontitis therapy. Human periodontal ligament cells (hPDLCs) play a vital role in the repair and regeneration of periodontal tissues. Our study aimed to investigated the mechanisms underlying the promotion of hPLDCs osteogenic differentiation by baicalein. DESIGN: hPDLCs were obtained from periodontal ligament (PDL) tissues by primary culture. The MTT assay was used to determine the growth curves of hPDLCs treated with different concentrations of baicalein (1...
February 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28220507/relationships-between-inflammation-and-immunity-related-transcript-abundance-in-the-rumen-and-jejunum-of-beef-steers-with-divergent-average-daily-gain
#13
J G Reynolds, A P Foote, H C Freetly, W T Oliver, A K Lindholm-Perry
The bovine rumen papillae are in contact with a wide array of microorganisms and the metabolites they produce, which may activate an inflammatory and/or immune response. Cytokines, chemokines and their receptor genes were tested for differential expression in the rumen and jejunum of beef steers with greater and lesser average daily body weight gain (ADG) near the average daily dry matter intake (DMI) for the population. Angus-sired steers (n = 16) were used to represent the greater (ADG = 2.2 ± 0.07 kg/day; DMI = 10...
February 21, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28219005/a-rhodium-iii-based-inhibitor-of-lysine-specific-histone-demethylase-1-as-an-epigenetic-modulator-in-prostate-cancer-cells
#14
Chao Yang, Wanhe Wang, Jia-Xin Liang, Guodong Li, Kasipandi Vellaisamy, Chun-Yuen Wong, Dik-Lung Ma, Chung-Hang Leung
We report herein a novel rhodium(III) complex 1 as a new LSD1 targeting agent and epigenetic modulator. Complex 1 disrupted the interaction of LSD1-H3K4me2 in human prostate carcinoma cells and enhanced the amplification of p21, FOXA2, and BMP2 gene promoters. Complex 1 was selective for LSD1 over other histone demethylases, such as KDM2b, KDM7, and MAO activities, and also showed antiproliferative activity toward human cancer cells. To date, complex 1 is the first metal-based inhibitor of LSD1 activity.
March 1, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28211679/site-directed-immobilization-of-bmp-2-two-approaches-for-the-production-of-innovative-osteoinductive-scaffolds
#15
Barbara Tabisz, Werner Schmitz, Michael Schmitz, Tessa Luehmann, Eva Heusler, Jens-Christoph Rybak, Lorenz Meinel, Juliane E Fiebig, Thomas D Mueller, Joachim Nickel
The regenerative potential of bone is strongly impaired in pathological conditions, such as nonunion fractures. To support bone regeneration various scaffolds have been developed in the past, which have been functionalized with osteogenic growth factors such as bone morphogenetic proteins (BMPs). However, most of them required supra-physiological levels of these proteins leading to burst releases, thereby causing severe side effects. Site-specific, covalent coupling of BMP2 to implant materials might be an optimal strategy in order to overcome these problems...
March 13, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28210626/osteogenic-differentiation-capacity-of-in-vitro-cultured-human-skeletal-muscle-for-expedited-bone-tissue-engineering
#16
Chunlei Miao, Lulu Zhou, Lufeng Tian, Yingjie Zhang, Wei Zhang, Fanghong Yang, Tianyi Liu, Shengjian Tang, Fangjun Liu
Expedited bone tissue engineering employs the biological stimuli to harness the intrinsic regenerative potential of skeletal muscle to trigger the reparative process in situ to improve or replace biological functions. When genetically modified with adenovirus mediated BMP2 gene transfer, muscle biopsies from animals have demonstrated success in regenerating bone within rat bony defects. However, it is uncertain whether the human adult skeletal muscle displays an osteogenic potential in vitro when a suitable biological trigger is applied...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28205638/effects-of-mir-146a-on-the-osteogenesis-of-adipose-derived-mesenchymal-stem-cells-and-bone-regeneration
#17
Qing Xie, Wei Wei, Jing Ruan, Yi Ding, Ai Zhuang, Xiaoping Bi, Hao Sun, Ping Gu, Zi Wang, Xianqun Fan
Increasing evidence has indicated that bone morphogenetic protein 2 (BMP2) coordinates with microRNAs (miRNAs) to form intracellular networks regulating mesenchymal stem cells (MSCs) osteogenesis. This study aimed to identify specific miRNAs in rat adipose-derived mesenchymal stem cells (ADSCs) during BMP2-induced osteogenesis, we selected the most significantly down-regulated miRNA, miR-146a, to systematically investigate its role in regulating osteogenesis and bone regeneration. Overexpressing miR-146a notably repressed ADSC osteogenesis, whereas knocking down miR-146a greatly promoted this process...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202325/synthesis-and-biological-evaluation-of-heterocyclic-analogues-of-pregnenolone-as-novel-anti-osteoporotic-agents
#18
Saransh Wales Maurya, Kapil Dev, Krishna Bhan Singh, Reena Rai, Ibadur Rahman Siddiqui, Divya Singh, Rakesh Maurya
The structural modifications of pregnenolone have been described via the introduction of heterocyclic moieties at C-17 position by limiting the acyl group. Novel heterocyclic analogues of pregnenolone have been synthesized by using Friedlander and Claisen-Schmidt reactions, and the synthesized compounds were evaluated for their osteogenic activity. Among the synthesized derivatives, four compounds showed significantly increased ALP activity. Among all four active compounds, the novel compound 3a has shown significant bone matrix mineralization and mRNA expressions of osteogenic marker genes, BMP2, RUNX-2 and OCN at 1pM concentration...
February 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28202082/bone-morphogenetic-proteins-and-myostatin-pathways-key-mediator-of-human-sarcopenia
#19
Manuel Scimeca, Eleonora Piccirilli, Francesca Mastrangeli, Cecilia Rao, Maurizio Feola, Augusto Orlandi, Elena Gasbarra, Elena Bonanno, Umberto Tarantino
BACKGROUND: Sarcopenia, osteoporosis and osteoarthritis are the most frequent musculoskeletal disorders affecting older people. The main aim of this study was to test the hypothesis that the balance between BMPs and myostatin pathways regulates the age-related muscle degeneration in OP and OA patients. To this end, we investigated the relationship among the expression of BMP-2/4-7, myostatin and phosphorylated Smads1-5-8 and the muscle quality, evaluated in term of fibers atrophy and satellite cells activity...
February 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28198427/in-vitro-and-in-vivo-responses-of-macrophages-to-magnesium-doped-titanium
#20
Bin Li, Huiliang Cao, Yaochao Zhao, Mengqi Cheng, Hui Qin, Tao Cheng, Yan Hu, Xianlong Zhang, Xuanyong Liu
Modulating immune response to biomaterials through changing macrophage polarization has been proven to be a promising strategy to elicit beneficial outcomes in tissue repair. The objective of this study was to evaluate the response of macrophage polarization to titanium doped with magnesium (0.1~0.35%), which was prepared through the magnesium plasma immersion ion implantation (Mg PIII) technique. The M1/M2 polarization profile of macrophages was investigated using a murine cell line RAW 264.7 in vitro and a murine air pouch model in vivo...
February 15, 2017: Scientific Reports
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