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https://www.readbyqxmd.com/read/27919317/drosophila-neprilysins-control-insulin-signaling-and-food-intake-via-cleavage-of-regulatory-peptides
#1
Benjamin Hallier, Ronja Schiemann, Eva Cordes, Jessica Vitos-Faleato, Stefan Walter, Jürgen J Heinisch, Anders Malmendal, Achim Paululat, Heiko Meyer
Insulin and IGF signaling are critical to numerous developmental and physiological processes, with perturbations being pathognomonic of various diseases, including diabetes. Although the functional roles of the respective signaling pathways have been extensively studied, the control of insulin production and release is only partially understood. Herein, we show that in Drosophila expression of insulin-like peptides is regulated by neprilysin activity. Concomitant phenotypes of altered neprilysin expression included impaired food intake, reduced body size, and characteristic changes in the metabolite composition...
December 6, 2016: ELife
https://www.readbyqxmd.com/read/27919172/influence-of-glyco-oxidation-on-complexes-between-fibrin-ogen-and-insulin-like-growth-factor-binding-protein-1-in-patients-with-diabetes-mellitus-type-2
#2
Nikola Gligorijević, Ana Penezić, Olgica Nedić
Fibrinogen and insulin-like growth factor-binding protein (IGFBP-1) are tightly connected to metabolic changes and complications in patients with diabetes mellitus (DM), and since they mutually interact to form complexes in plasma, we investigated whether and to what extent IGFBP-1/fibrinogen complexes change due to glyco-oxidative processes in DM and whether they participate in fibrin clot formation. These complexes were determined by immunoblotting in plasma samples from healthy adults and patients with DM type 2...
December 5, 2016: Free Radical Research
https://www.readbyqxmd.com/read/27919008/phenotype-analysis-of-male-transgenic-mice-overexpressing-mutant-igfbp-2-lacking-the-cardin-weintraub-sequence-motif-reduced-expression-of-synaptic-markers-and-myelin-basic-protein-in-the-brain-and-a-lower-degree-of-anxiety-like-behaviour
#3
N Schindler, J Mayer, S Saenger, U Gimsa, C Walz, J Brenmoehl, D Ohde, E Wirthgen, A Tuchscherer, V C Russo, M Frank, T Kirschstein, F Metzger, A Hoeflich
Brain growth and function are regulated by insulin-like growth factors I and II (IGF-I and IGF-II) but also by IGF-binding proteins (IGFBPs), including IGFBP-2. In addition to modulating IGF activities, IGFBP-2 interacts with a number of components of the extracellular matrix and cell membrane via a Cardin-Weintraub sequence or heparin binding domain (HBD1). The nature and the signalling elicited by these interactions are not fully understood. Here, we examined transgenic mice (H1d-hBP2) overexpressing a mutant human IGFBP-2 that lacks a specific heparin binding domain (HBD1) known as the Cardin-Weintraub sequence...
November 16, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27918854/randomized-trial-testing-the-effects-of-eating-frequency-on-two-hormonal-biomarkers-of-metabolism-and-energy-balance
#4
Martine M Perrigue, Adam Drewnowski, Ching-Yun Wang, Xiaoling Song, Mario Kratz, Marian L Neuhouser
BACKGROUND: Eating frequency (EF) may influence obesity-related disease risk by attenuating postprandial fluctuations in hormones involved in metabolism, appetite regulation, and inflammation. MATERIALS/METHODS: This randomized crossover intervention trial tested the effects of EF on fasting plasma insulin-like growth factor-I (IGF-1) and leptin. Fifteen subjects (4 males, 11 females) completed two eucaloric intervention phases lasting 21 days each: low EF ("low-EF"; 3 eating occasions/day) and high EF ("high-EF"; 8 eating occasions/day)...
December 5, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27918846/soy-food-intake-and-biomarkers-of-breast-cancer-risk-possible-difference-in-asian-women
#5
Gertraud Maskarinec, Dan Ju, Yukiko Morimoto, Adrian A Franke, Frank Z Stanczyk
Soy foods may protect against breast cancer in Asian but not in Western populations. We examined if the levels of various markers of breast cancer risk and inflammation, as well as the effects of soy food consumption on these markers, differ between Asian and non-Asian premenopausal women in two soy intervention trials. One study randomized 220 women to a 2-yr intervention and the other one randomized 96 women in a crossover design to examine the effects of consumption of 2 daily soy servings on nipple aspirate fluid (NAF) volume; estrogens in serum, NAF, and urine; insulin-like growth factor-1 (IGF-1), IGF-binding protein 3, and inflammatory markers in serum; and mammographic densities...
December 5, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27917273/involvement-of-microrna-133-and-29-in-cardiac-disturbances-in-diabetic-ovariectomized-rats
#6
Parisa Habibi, Alireza Alihemmati, Mohammadreza Nasirzadeh, Hadi Yousefi, Mohammadrasoul Habibi, Nasser Ahmadiasl
OBJECTIVES: Menopause and diabetes obviously increase the risk of cardiovascular disease in women. The aims of the present study were to evaluate the effects of ovariectomy in type 2 diabetes on the histology and expression of miRNA-29, miRNA-133, IGF-1 and Bcl-2 genes and Bcl-2 protein and caspase 3 activity in the hearts of female rats. MATERIALS AND METHODS: Forty Female Wistar rats were divided into four groups: control, sham, ovariectomized (OVX), and ovariectomized with type 2 diabetes (OVX...
November 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27916774/non-islet-cell-tumor-hypoglycemia-caused-by-a-big-insulin-like-growth-factor-ii-producing-hepatocellular-carcinoma-an-autopsy-case-report
#7
Hirohito Naruse, Norihiko Shimoyama, Tsugumi Satoh, Yoshiya Yamamoto, Kazuteru Hatanaka, Taiki Kudo, Masayoshi Ohno, Kazuharu Suzuki, Hajime Hirata, Marina Suzuki
A 73-year-old man with a hepatocellular carcinoma was admitted to our hospital. He suffered from recurrent severe hypoglycemia. An autopsy was performed after his death. Anti-insulin-like growth factor II (IGF-II) monoclonal antibody immunostaining of the hepatocellular carcinoma was positive. Western immunoblot analysis of the serum revealed highly elevated IGF-II. Therefore, we diagnosed this case as a non-islet cell tumor hypoglycemia caused by a big IGF-II-producing hepatocellular carcinoma.
2016: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/27914187/enhanced-nutrition-improves-growth-and-increases-blood-adiponectin-concentrations-in-very-low-birth-weight-infants
#8
Elin W Blakstad, Sissel J Moltu, Britt Nakstad, Marit B Veierød, Kenneth Strømmen, Pétur B Júlíusson, Astrid N Almaas, Arild E Rønnestad, Kristin Brække, Christian A Drevon, Per O Iversen
BACKGROUND: Adequate nutrient supply is essential for optimal postnatal growth in very low birth weight (VLBW, birth weight<1,500 g) infants. Early growth may influence the risk of metabolic syndrome later in life. OBJECTIVE: To evaluate growth and blood metabolic markers (adiponectin, leptin, and insulin-like growth factor-1 (IGF-1)) in VLBW infants participating in a randomized nutritional intervention study. DESIGN: Fifty VLBW infants were randomized to an enhanced nutrient supply or a standard nutrient supply...
2016: Food & Nutrition Research
https://www.readbyqxmd.com/read/27913707/correction-antagonists-of-igf-vitronectin-interactions-inhibit-igf-i-induced-breast-cancer-cell-functions
#9
(no author information available yet)
No abstract text is available yet for this article.
December 2016: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/27909910/biological-mechanisms-for-the-effect-of-obesity-on-cancer-risk-experimental-evidence
#10
Mauricio Berriel Diaz, Stephan Herzig, Tobias Schafmeier
Multiple epidemiological studies demonstrated that overweight and obesity significantly increase the risk of several types of cancer. As the prevalence of obesity is dramatically rising, it is expected that it will represent one of the major lifestyle-associated risk factors for cancer development in the near future. Numerous recent studies expanded knowledge about key players and pathways, which are deregulated in the obese state and potentially promote cancer initiation, progression and aggressiveness via remote and local effects...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909909/obesity-biomarkers-metabolism-and-risk-of-cancer-an-epidemiological-perspective
#11
Katharina Nimptsch, Tobias Pischon
Obesity is associated with metabolic alterations that may pose a biological link between body fatness and risk of cancer. Elucidating the role of obesity-related biomarkers in cancer development is essential for developing targeted strategies aiming at obesity-associated cancer prevention. Molecular epidemiological studies of the past decades have provided evidence that major hormonal pathways linking obesity and cancer risk include the insulin and insulin-like growth factor-1 (IGF-1) axis, sex-steroid hormones, adipokines and chronic low-grade inflammation...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909906/obesity-and-prostate-cancer
#12
Yin Cao, Edward Giovannucci
Prostate cancer is a complex, heterogeneous disease. Factors related to detection, particularly PSA screening, further increase heterogeneity in the manifestation of the disease. It is thus not possible to provide a simple summary of the relationship between obesity and prostate cancer. Findings on obesity, often defined using body mass index (BMI), and total prostate cancer risk have been mixed; however, obesity is relatively consistently associated with a higher risk of aggressive prostate cancer, with aggressiveness defined in various ways (e...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909903/obesity-and-kidney-cancer
#13
Kathryn M Wilson, Eunyoung Cho
Renal cell cancer (RCC) is the major type of kidney cancer with increasing incidence. Obesity is one of the well-established risk factors for RCC. Meta-analyses including multiple cohort and case-control studies have found a consistent positive association between obesity and RCC. The association appeared to be independent of other RCC risk factors including hypertension and has been often stronger in women, although a positive association has also been observed in men. Obesity has been largely measured as body mass index (BMI)...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27907809/does-exposure-to-phthalates-influence-thyroid-function-and-growth-hormone-homeostasis-the-taiwan-environmental-survey-for-toxicants-test-2013
#14
Han-Bin Huang, Wen-Harn Pan, Jung-Wei Chang, Hung-Che Chiang, Yue Leon Guo, Jouni J K Jaakkola, Po-Chin Huang
BACKGROUND: Previous epidemiologic and toxicological studies provide some inconsistent evidence that exposure to phthalates may affect thyroid function and growth hormone homeostasis. OBJECTIVE: To assess the relations between exposure to phthalates and indicators of thyroid function and growth hormone homeostasis disturbances both among adults and minors. METHODS: We conducted a population-based cross-sectional study of 279 Taiwanese adults (≥18 years old) and 79 minors (<18 years old) in 2013...
November 28, 2016: Environmental Research
https://www.readbyqxmd.com/read/27907059/quantitative-and-selective-analysis-of-feline-growth-related-proteins-using-parallel-reaction-monitoring-high-resolution-mass-spectrometry
#15
Mårten Sundberg, Emma M Strage, Jonas Bergquist, Bodil S Holst, Margareta Ramström
Today immunoassays are widely used in veterinary medicine, but lack of species specific assays often necessitates the use of assays developed for human applications. Mass spectrometry (MS) is an attractive alternative due to high specificity and versatility, allowing for species-independent analysis. Targeted MS-based quantification methods are valuable complements to large scale shotgun analysis. A method referred to as parallel reaction monitoring (PRM), implemented on Orbitrap MS, has lately been presented as an excellent alternative to more traditional selected reaction monitoring/multiple reaction monitoring (SRM/MRM) methods...
2016: PloS One
https://www.readbyqxmd.com/read/27907012/the-signature-of-microrna-dysregulation-in-muscle-paralyzed-by-spinal-cord-injury-includes-downregulation-of-micrornas-that-target-myostatin-signaling
#16
Rita De Gasperi, Zachary A Graham, Lauren M Harlow, William A Bauman, Weiping Qin, Christopher P Cardozo
Spinal cord injury (SCI) results in muscle atrophy, reduced force generation and an oxidative-to-glycolytic fiber type shift. The mechanisms responsible for these alterations remain incompletely understood. To gain new insights regarding mechanisms involved in deterioration of muscle after SCI, global expression profiles of miRs in paralyzed gastrocnemius muscle were compared between sham-operated (Sham) and spinal cord-transected (SCI) rats. Ingenuity Pathways Analysis of the altered miRs identified signaling via insulin, IGF-1, integrins and TGF-β as being significantly enriched for target genes...
2016: PloS One
https://www.readbyqxmd.com/read/27905989/the-histone-deacetylase-inhibitor-sodium-butyrate-exhibits-neuroprotective-effects-for-ischemic-stroke-in-middle-aged-female-rats
#17
Min Jung Park, Farida Sohrabji
BACKGROUND: Sodium butyrate (NaB) is a histone deacetylase (HDAC) inhibitor exhibiting anti-inflammatory and neuroprotective effects in a rat ischemic model of stroke as well as a myocardial ischemia model. Although clinical evidence shows that older women are at higher risk for stroke occurrence and greater stroke severity, no studies have evaluated the effectiveness of NaB either in females or in older animals. METHODS: To determine the effects of NaB on stroke in older females, acyclic middle-aged Sprague-Dawley female rats (9-11 months old, constant diestrus) were subject to middle cerebral artery occlusion (MCAo) by intracerebral injection of recombinant endothelin-1...
December 1, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27905925/expression-of-insulin-receptor-ir-a-and-b-isoforms-igf-ir-and-ir-igf-ir-hybrid-receptors-in-vascular-smooth-muscle-cells-and-their-role-in-cell-migration-in-atherosclerosis
#18
N Beneit, C E Fernández-García, J L Martín-Ventura, L Perdomo, Ó Escribano, J B Michel, G García-Gómez, S Fernández, S Díaz-Castroverde, J Egido, A Gómez-Hernández, M Benito
BACKGROUND: Abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) is a major contributor to the development of atherosclerotic process. In a previous work, we demonstrated that the insulin receptor isoform A (IRA) and its association with the insulin-like growth factor-I receptor (IGF-IR) confer a proliferative advantage to VSMCs. However, the role of IR and IGF-IR in VSMC migration remains poorly understood. METHODS: Wound healing assays were performed in VSMCs bearing IR (IRLoxP(+/+) VSMCs), or not (IR(-/-) VSMCs), expressing IRA (IRA VSMCs) or expressing IRB (IRB VSMCs)...
December 1, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27905899/a-case-of-extragastrointestinal-stromal-tumor-complicated-by-severe-hypoglycemia-a-unique-presentation-of-a-rare-tumor
#19
Zeb Saeed, Solaema Taleb, Carmella Evans-Molina
BACKGROUND: Non-Islet Cell Tumor Hypoglycemia (NICTH) is a rare paraneoplastic cause of hypoglycemia arising from excess tumor production of insulin-like growth factor. The objective of this report is to describe an unusual case of Extragastrointestinal Stromal Tumor (EGIST) associated NICTH. CASE PRESENTATION: A 64 year-old African female was brought to the emergency room with a 1-month history of recurrent syncope, weight loss, and abdominal bloating. Serum blood glucose was discovered to 39 mg/dL, when insulin, proinsulin, and C-peptide were suppressed...
December 1, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27905670/induced-pluripotent-stem-cells-as-a-new-getaway-for-bone-tissue-engineering-a-systematic-review
#20
REVIEW
Farshid Bastami, Pantea Nazeman, Hamidreza Moslemi, Maryam Rezai Rad, Kazem Sharifi, Arash Khojasteh
OBJECTIVES: Mesenchymal stem cells (MSCs) are frequently used for bone regeneration, however, they are limited in quantity. Moreover, their proliferation and differentiation capabilities reduce during cell culture expansion. Potential application of induced pluripotent stem cells (iPSCs) has been reported as a promising alternative source for bone regeneration. This study aimed to systematically review the available literature on osteogenic potential of iPSCs and to discuss methods applied to enhance their osteogenic potential...
December 1, 2016: Cell Proliferation
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