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https://www.readbyqxmd.com/read/29778102/effects-of-extending-the-length-of-pro-oestrus-in-an-oestradiol-and-progesterone-based-oestrus-synchronisation-program-on-ovarian-function-uterine-environment-and-pregnancy-establishment-in-beef-heifers
#1
J J de la Mata, R Núñez-Olivera, F Cuadro, D Bosolasco, V de Brun, A Meikle, G A Bó, A Menchaca
The aim of the present study was to investigate the effects of a strategy for extending pro-oestrus (the interval between luteolysis and ovulation) in an oestrus synchronisation protocol (named J-Synch) in beef heifers on follicular growth, sexual steroid concentrations, the oestrogen receptor ERα and progesterone receptors (PR) in the uterus, insulin-like growth factor (IGF) 1 and pregnancy rates. In Experiment 1, heifers treated with the new J-Synch protocol had a longer pro-oestrus period than those treated with the conventional protocol (mean (±s...
May 21, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29776717/m2-macrophages-promote-wound-induced-hair-neogenesis
#2
Akira Kasuya, Taisuke Ito, Yoshiki Tokura
BACKGROUND: De novo hair regeneration occurs in scars of normal adult mice. This interesting phenomenon is termed as wound-induced hair neogenesis (WIHN). We hypothesized that M2 macrophages are crucially involved in WIHN. OBJECTIVE: To clarify the contribution of M2 macrophages to WIHN. METHOD: We established a mouse model of WIHN. A full thickness skin excision was implemented on the back of C57BL/6 (B6) mice. Newly developing hair follicles were detected by a whole-mount assay...
May 12, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29775636/epithelial-proliferation-in-inflammatory-skin-disease-is-regulated-by-ttc7-in-fibroblasts-and-lymphocytes
#3
Ursina Nüesch, Andrea A Mauracher, Lennart Opitz, Benjamin Volkmer, Katarzyna Michalak-Mićka, Jivko Kamarachev, Tom Hartwig, Ernst Reichmann, Burkhard Becher, Stefano Vavassori, Jana Pachlopnik Schmid
BACKGROUND: Mutations in tetratricopeptide repeat domain 7A (TTC7A) and its mouse orthologue Ttc7 result in a multisystemic disease, mostly affecting epithelial barriers and the immune system. Despite successful hematopoietic stem cell transplantation, ongoing progression of gastrointestinal manifestations can be life-threatening in TTC7A-deficient patients. OBJECTIVE: To identify whether TTC7A mutations dysregulate epithelial cells only, or whether a cell-intrinsic defect in lymphocytes or other cells contributes to disease manifestations...
May 15, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29771405/correlations-of-sox9-expression-with-serum-igf1-and-inflammatory-cytokines-il-1%C3%AE-and-il-6-in-skin-lesions-of-patients-with-acne
#4
J Ji, R-H Zhang, H-M Li, Q Guo, L-L Zhang, J Zhu, L Chen
OBJECTIVE: To study the correlations of sex determining region Y-box 9 (SOX9) expression with serum type-1 insulin-like growth factor (IGF-1), interleukin-1α (IL-1α), and interleukin-6 (IL-6) in skin lesion tissues of patients with acne. PATIENTS AND METHODS: Six patients with acne who were treated for the first time in our outpatient clinic from June 2017 to July 2017 were selected as observation group, and 6 normal subjects were selected as control group. The expression of SOX9 was detected by immunohistochemistry...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29768519/influence-of-growth-hormone-replacement-on-neurological-and-psychomotor-development-case-report
#5
Felipe Motta, Adriana Pasmanik Eisencraft, Lindiane Gomes Crisostomo
The height response to the use of growth hormone in short height cases has already been confirmed in the literature. The influence of the insulin-like growth factor 1 (GH-IGF1) axis components on development, function, regeneration, neuroprotection, cognition, and motor functions has been evaluated in experimental studies and in adults with central nervous system lesions. However, there is still little research on the clinical impact of hormone replacement on neurological and psychomotor development. This report presents the case of a patient with excellent weight-height recovery and, even more surprisingly, neurological and psychomotor development in response to use of growth hormone...
May 14, 2018: Einstein
https://www.readbyqxmd.com/read/29765129/intrauterine-smoke-exposure-deregulates-lung-function-pulmonary-transcriptomes-and-in-particular-insulin-like-growth-factor-igf-1-in-a-sex-specific-manner
#6
Stefan Dehmel, Petra Nathan, Sabine Bartel, Natalia El-Merhie, Hagen Scherb, Katrin Milger, Gerrit John-Schuster, Ali Oender Yildirim, Machteld Hylkema, Martin Irmler, Johannes Beckers, Bianca Schaub, Oliver Eickelberg, Susanne Krauss-Etschmann
Prenatal exposure to tobacco smoke is a significant risk-factor for airway disease development. Furthermore, the high prevalence of pregnant smoking women requires the establishment of strategies for offspring lung protection. Therefore, we here aimed to understand the molecular mechanism of how prenatal smoke exposure affects fetal lung development. We used a mouse model recapitulating clinical findings of prenatally exposed children, where pregnant mice were exposed to smoke until c-section or spontaneous delivery, and offspring weight development and lung function was monitored...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760049/insulin-suppresses-the-production-of-fibroblast-growth-factor-23-fgf23
#7
Ludmilla Bär, Martina Feger, Abul Fajol, Lars-Oliver Klotz, Shufei Zeng, Florian Lang, Berthold Hocher, Michael Föller
Fibroblast growth factor 23 (FGF23) is produced by bone cells and regulates renal phosphate and vitamin D metabolism, as well as causing left ventricular hypertrophy. FGF23 deficiency results in rapid aging, whereas high plasma FGF23 levels are found in several disorders, including kidney or cardiovascular diseases. Regulators of FGF23 production include parathyroid hormone (PTH), calcitriol, dietary phosphate, and inflammation. We report that insulin and insulin-like growth factor 1 (IGF1) are negative regulators of FGF23 production...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29758340/traditional-mongolian-medicine-eerdun-wurile-improves-stroke-recovery-through-regulation-of-gene-expression-in-rat-brain
#8
Saren Gaowa, Narisi Bao, Man Da, Qiburi Qiburi, Tsogzolmaa Ganbold, Lu Chen, Altanzul Altangerel, Temuqile Temuqile, Huricha Baigude
ETHNOPHARMACOLOGICAL RELEVANCE: Eerdun Wurile (EW) is one of the key Mongolian medicines for treatment of neurological and cardiological disorders. EW is ranked most regularly used Mongolian medicine in clinic. Components of EW which mainly originate from natural products are well defined and are unique to Mongolian medicine. AIM OF THE STUDY: Although the recipe of EW contains known neuroactive chemicals originated from plants, its mechanism of action has never been elucidated at molecular level...
May 11, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29754009/dietary-nitrogen-and-calcium-modulate-cyp27b1-expression-in-young-goats
#9
M R Wilkens, K Elfers, M Schmicke, G Breves, A S Muscher-Banse
In livestock, feeding a reduced nitrogen (N) diet is favored for economic and ecological reasons. Ruminants cope more easily with a reduced N diet than monogastric species. However, changes in mineral homeostasis such as a reduction in 1,25-dihydroxyvitamin D3 (1,25-(OH)2 D3 ) concentrations, calcium (Ca), and IGF1 levels were observed in goats kept on a reduced N diet. The decrease in 1,25-(OH)2 D3 occurred even during a simultaneous reduction in dietary N and Ca, whereas a solitary Ca reduction stimulated 1,25-(OH)2 D3 synthesis...
April 3, 2018: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29753845/gestational-di-2-ethylhexyl-phthalate-exposure-causes-fetal-intrauterine-growth-restriction-through-disturbing-placental-thyroid-hormone-receptor-signaling
#10
Zhen Yu, Yan Han, Ru Shen, Kun Huang, Yuan-Yuan Xu, Qu-Nan Wang, Shan-Shan Zhou, De-Xiang Xu, Fang-Biao Tao
Previous study reported that gestational Di-(2-ethylhexyl) phthalate (DEHP) exposure caused fetal intrauterine growth restriction (IUGR). We aimed to investigate the role of placental thyroid hormone receptor (THR) signaling in DEHP-induced IUGR. Dams were treated with DEHP (50 or 200 mg/kg) by gavage daily throughout pregnancy. As expected, gestational DEHP exposure dose-dependently caused fetal IUGR. The mRNA levels of placental Thrα1 and Thrβ1 were reduced and nuclear translocation of placental THRα1 and THRβ1 were suppressed in DEHP-exposed mice even though thyroid hormones in maternal and fetal sera were unaffected...
May 10, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29749511/bioinformatics-analysis-of-microarray-data-to-reveal-the-pathogenesis-of-brain-ischemia
#11
Jiaxuan He, Ya Gao, Gang Wu, Xiaoming Lei, Yong Zhang, Weikang Pan, Hui Yu
Brain ischemia leads to energy depletion, mitochondrial dysfunction and neuronal cell death. The present study was designed to identify key genes and pathways associated with brain ischemia. The gene expression profile GSE52001, including 3 normal brain samples and 3 cerebral ischemia samples, was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were identified using the limma package. Then functional and pathway enrichment analyses were performed by the MATHT tool...
May 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29745905/integrative-computational-approach-to-evaluate-risk-genes-for-postmenopausal-osteoporosis
#12
Yingjun Sheng, Jilei Tang, Kewei Ren, Lydia C Manor, Hongbao Cao
In recent years, numerous studies reported over a hundred of genes playing roles in the etiology of postmenopausal osteoporosis (PO). However, many of these candidate genes were lack of replication and results were not always consistent. Here, the authors proposed a computational workflow to curate and evaluate PO related genes. They integrate large-scale literature knowledge data and gene expression data (PO case/control: 10/10) for the marker evaluation. Pathway enrichment, sub-network enrichment, and gene-gene interaction analysis were conducted to study the pathogenic profile of the candidate genes, with four metrics proposed and validated for each gene...
June 2018: IET Systems Biology
https://www.readbyqxmd.com/read/29743295/defining-the-tissue-specific-roles-of-igf1-igf1r-in-regulating-metabolism-using-the-cre-loxp-system
#13
Rhonda D Kineman, Mercedes Del Rio-Moreno, André Sarmento-Cabral
It is clear that IGF1 is important in supporting growth and regulating metabolism. The IGF1 found in the circulation is primarily produced by the liver hepatocytes, but healthy mature hepatocytes do not express appreciable levels of the IGF1 receptor (IGF1R). Therefore, the metabolic actions of IGF1 are thought to be mediated via extra-hepatocyte actions. Given the structural and functional homology between IGF1/IGF1R and insulin receptor (INSR) signaling, and the fact that IGF1, IGF1R and INSR are expressed in most tissues of the body, it is difficult to separate out the tissue-specific contributions of IGF1/IGF1R in maintaining whole body metabolic function...
May 9, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29742726/igf-and-igfbp-as-an-index-for-discrimination-between-vitamin-d-supplementation-responders-and-nonresponders-in-overweight-saudi-subjects
#14
Nasser M Al-Daghri, Sobhy M Yakout, Kaiser Wani, Malak Nawaz Khan Khattak, Spiro D Garbis, George P Chrousos, Omar S Al-Attas, Majed S Alokail
Vitamin D deficiency is common in the Kingdom of Saudi Arabia (KSA). Therefore, it is significant to recognize which biochemical markers modulate serum 25 hydroxyvitamin D (25(OH)D) in response to vitamin D supplementation in such a population. Our aim was to study the correlation of insulin-like growth factor (IGF) and insulin growth factor binding protein (IGFBP) with serum 25(OH)D in response to vitamin D supplementation in a Saudi population. A total of 199 (89 males/110 females) vitamin D deficient subjects (25(OH)D level <50 nmol/L), aged 40...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29739870/pregnancy-associated-plasma-protein-aa-pappaa-regulates-photoreceptor-synaptic-development-to-mediate-visually-guided-behavior
#15
Andrew H Miller, Hollis B Howe, Bryan M Krause, Scott A Friedle, Matthew I Banks, Brian D Perkins, Marc A Wolman
To guide behavior, sensory systems detect the onset and offset of stimuli and process these distinct inputs via parallel pathways. In the retina, this strategy is implemented by splitting neural signals for light onset and offset via synapses connecting photoreceptors to ON and OFF bipolar cells, respectively. It remains poorly understood which molecular cues establish the architecture of this synaptic configuration to split light onset and offset signals. A mutant with reduced synapses between photoreceptors and one bipolar cell type, but not the other, could reveal a critical cue...
May 8, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29738863/porcine-igf1-synonymous-mutation-alter-gene-expression-and-protein-binding-affinity-with-igf1r
#16
Yunyun Cheng, Songcai Liu, Gang Wang, Wenzhen Wei, Shan Huang, Rui Yang, Hongwei Geng, Haoyang Li, Jie Song, Lidan Sun, Hao Yu, Linlin Hao
CONTEXT: Insulin like growth factor 1 (IGF1) is privotal in the regulation of animal growth and is a single-chain globular protein composed of B, C, A, and D regions, of which the C region is involved in maintaining high affinity binding to the IGF1 receptor (IGF1R). PURPOSE: In this study, significant expression differences between large pigs and miniature pigs were detected and only one synonymous SNP (c.258G>A) in the C region of the coding sequence of IGF1 gene was screened...
May 5, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29731738/insulin-like-growth-factor-2-mrna-binding-protein-3-influences-sensitivity-to-anti-igf-system-agents-through-the-translational-regulation-of-igf1r
#17
Caterina Mancarella, Michela Pasello, Maria Cristina Manara, Lisa Toracchio, Evelina Fiorenza Sciandra, Piero Picci, Katia Scotlandi
Insulin-like growth factor 2 (IGF2) mRNA-binding protein 3 (IGF2BP3) is an oncofetal protein that binds RNA, thereby influencing the fate of target transcripts. IGF2BP3 is synthesized de novo in cancer, where it promotes proliferation, drug resistance, and metastasis via both IGF2-dependent and IGF2-independent mechanisms. Ewing sarcoma (ES) is a rare bone and soft tissue tumor in which the IGF system plays a pivotal role. This study aimed to investigate the effect of IGF2BP3 on the regulation of the IGF system in ES...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29730537/association-of-body-weight-gain-with-muscle-fat-and-liver-expression-levels-of-growth-hormone-receptor-insulin-like-growth-factor-i-and-beta-adrenergic-receptor-mrnas-in-steers
#18
W Zheng, X Leng, M Vinsky, C Li, H Jiang
The physiological basis of feed efficiency is unclear. Administration of GH or beta-adrenergic agonists improves feed efficiency in various animals. The objective of this study was to test the hypothesis that more efficient cattle have greater expression of GH receptor (GHR) or beta-adrenergic receptor (ADRB) mRNA in skeletal muscle, fat, and liver, the major target tissues of GH and beta-adrenergic agonists. Fifty Angus steers were fed a finishing diet for 75 d to determine residual feed intake (RFI). Carcass measures, skeletal muscle, subcutaneous fat, and liver samples were collected from the top 10 high-RFI steers and top 10 low-RFI steers at slaughter...
April 9, 2018: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29725014/clinical-and-genomic-landscape-of-gastric-cancer-with-a-mesenchymal-phenotype
#19
Sang Cheul Oh, Bo Hwa Sohn, Jae-Ho Cheong, Sang-Bae Kim, Jae Eun Lee, Ki Cheong Park, Sang Ho Lee, Jong-Lyul Park, Yun-Yong Park, Hyun-Sung Lee, Hee-Jin Jang, Eun Sung Park, Sang-Cheol Kim, Jeonghoon Heo, In-Sun Chu, You-Jin Jang, Young-Jae Mok, WonKyung Jung, Baek-Hui Kim, Aeree Kim, Jae Yong Cho, Jae Yun Lim, Yuki Hayashi, Shumei Song, Elena Elimova, Jeannelyn S Estralla, Jeffrey H Lee, Manoop S Bhutani, Yiling Lu, Wenbin Liu, Jeeyun Lee, Won Ki Kang, Sung Kim, Sung Hoon Noh, Gordon B Mills, Seon-Young Kim, Jaffer A Ajani, Ju-Seog Lee
Gastric cancer is a heterogeneous cancer, making treatment responses difficult to predict. Here we show that we identify two distinct molecular subtypes, mesenchymal phenotype (MP) and epithelial phenotype (EP), by analyzing genomic and proteomic data. Molecularly, MP subtype tumors show high genomic integrity characterized by low mutation rates and microsatellite stability, whereas EP subtype tumors show low genomic integrity. Clinically, the MP subtype is associated with markedly poor survival and resistance to standard chemotherapy, whereas the EP subtype is associated with better survival rates and sensitivity to chemotherapy...
May 3, 2018: Nature Communications
https://www.readbyqxmd.com/read/29723762/characterization-of-igf1-and-igf2-genes-during-maraena-whitefish-coregonus-maraena-ontogeny-and-the-effect-of-temperature-on-embryogenesis-and-igf-expression
#20
Mareen Nipkow, Elisa Wirthgen, Peter Luft, Alexander Rebl, Andreas Hoeflich, Tom Goldammer
The insulin-like growth factors IGF-1 and IGF-2 play important roles in the growth, development, and metabolism of teleost fish. We isolated cDNA sequences of igf1, and igf2 genes from maraena whitefish. We quantified the mRNA and protein expressions of IGFs in different tissues of marketable juvenile maraena whitefish. Moreover, we analyzed the gene expression profiles during maraena whitefish development from unfertilized egg to fingerling and examined the effect of incubation temperature on igf1, and igf2 gene expression during embryonic and early larval development...
April 25, 2018: Growth Hormone & IGF Research
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