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Glucose Metabolism

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https://www.readbyqxmd.com/read/29141371/-effect-of-recombinant-human-growth-hormone-therapy-on-metabolic-parameters-in-patients-with-craniopharyngioma
#1
J F Mao, X Wang, S Y Xiong, J J Zheng, B Q Yu, M Nie, X Y Wu, S T Qi
Objective: To investigate the effects of recombinant human growth hormone (rhGH) on metabolic parameters in patients with craniopharyngioma surgeries. Methods: Totallys 30 patients with craniopharyngioma were included in this retrospective study. They were divided into growth hormone (GH) group and control group according to whether they received rhGH therapy or not. The following parameters, including body mass index (BMI), weight, waist circumstance, transaminase, fasting blood glucose, lipid profile and high-sensitivity C-reactive protein (hsCRP) were compared after rhGH therapy for 4-6 months...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141252/musashi1-promotes-non-small-cell-lung-carcinoma-malignancy-and-chemoresistance-via-activating-the-akt-signaling-pathway
#2
Yaoguo Lang, Xianglong Kong, Changjun He, Fengjiao Wang, Benkun Liu, Shibo Zhang, Jinfeng Ning, Kaibin Zhu, Shidong Xu
BACKGROUND/AIMS: Lung cancer is one of the leading causes for cancer mortality. The poor therapeutic outcome of non-small cell lung carcinoma (NSCLC) is mainly due to late diagnosis and chemoresistance. In this study, we investigated the role of Musashi1 (MSI1) in NSCLC malignancy and chemoresistance. METHODS: Colony formation, MTT, glucose uptake and lactate production assays were employed to study lung cancer cell malignancy and chemoresistance. RT-PCR and Western blotting were performed to detect mRNA and protein expressions of genes...
November 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29141192/impact-of-the-cultivation-strategy-on-resveratrol-production-from-glucose-in-engineered-corynebacterium-glutamicum
#3
Adelaide Braga, Joana Oliveira, Rita Silva, Patricia Ferreira, Isabel Rocha, Nicolai Kallscheuer, Jan Marienhagen, Nuno Faria
The health benefits of polyphenols such as stilbenes and flavonoids for humans are increasingly attracting attention. Resveratrol is a well-characterized naturally-occurring stilbene and potent anti-oxidant, which is used as food supplement and cosmetic ingredient. Several microorganisms including Corynebacterium glutamicum were engineered for resveratrol production from glucose. Based on the cultivation of a resveratrol-producing C. glutamicum strain in shake flasks, different strategies for improving production under controlled conditions at bioreactor scale were tested...
November 12, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/29141041/effects-of-a-mixed-berry-beverage-on-cognitive-functions-and-cardiometabolic-risk-markers-a-randomized-cross-over-study-in-healthy-older-adults
#4
Anne Nilsson, Ilkka Salo, Merichel Plaza, Inger Björck
BACKGROUND: Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. METHODS: Forty healthy subjects between 50-70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design...
2017: PloS One
https://www.readbyqxmd.com/read/29141038/depot-specific-inflammation-with-decreased-expression-of-atm2-in-white-adipose-tissues-induced-by-high-margarine-lard-intake
#5
Nannan Wang, Jie Guo, Fuding Liu, Mingxia Wang, Chuntao Li, Lihong Jia, Lingling Zhai, Wei Wei, Yinglong Bai
A high-fat diet has been recognized as an important risk factor of obesity, with variable impacts of different fatty acid compositions on the physiological process. To understand the effects of a high-margarine/lard diet, which is a major source of trans fatty acids (TFAs)/ saturated fatty acids (SFAs), elaidic acid as a biomarker of margarine intake was used to screen affected adipokines on mature human adipocytes in vitro. Weaned male Wistar rats were fed a high-fat diet enriched with margarine/lard to generate obesity-prone (OP) and obesity-resistant (OR) models, which were then used to explore the inflammatory responses of depot-specific white adipose tissue...
2017: PloS One
https://www.readbyqxmd.com/read/29141004/lack-of-mitochondrial-muts-homolog-1-in-toxoplasma-gondii-disrupts-maintenance-and-fidelity-of-mitochondrial-dna-and-reveals-metabolic-plasticity
#6
Tamila Garbuz, Gustavo Arrizabalaga
The importance of maintaining the fidelity of the mitochondrial genome is underscored by the presence of various repair pathways within this organelle. Presumably, the repair of mitochondrial DNA would be of particular importance in organisms that possess only a single mitochondrion, like the human pathogens Plasmodium falciparum and Toxoplasma gondii. Understanding the machinery that maintains mitochondrial DNA in these parasites is of particular relevance, as mitochondrial function is a validated and effective target for anti-parasitic drugs...
2017: PloS One
https://www.readbyqxmd.com/read/29140513/amino-acid-and-fatty-acid-levels-affect-hepatic-phosphorus-metabolite-content-in-metabolically-healthy-humans
#7
Sabine Kahl, Bettina Nowotny, Klaus Straßburger, Alessandra Bierwagen, Birgit Klüppelholz, Barbara Hoffmann, Guido Giani, Peter J Nowotny, Franziska Wallscheid, Erifili Hatziagelaki, Giovanni Pacini, Jong-Hee Hwang, Michael Roden
Objective: Hepatic energy metabolism negatively relates to insulin resistance and liver fat content in type 2 diabetes patients, but its role in metabolically healthy humans is unclear. We hypothesized that intrahepatocellular γ-adenosine triphosphate (γATP) and inorganic phosphate (Pi) concentrations exhibit similar associations with insulin sensitivity in non-diabetic non-obese volunteers. Research Design and methods: A total of 76 participants underwent a 4-point sampling 75-g OGTT as well as in vivo31P/1H magnetic resonance spectroscopy...
November 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29140440/cord-metabolic-profiles-in-obese-pregnant-women-insights-into-offspring-growth-and-body-composition
#8
Nashita Patel, Christian Hellmuth, Olaf Uhl, Keith Godfrey, Annette Briley, Paul Welsh, Dharmintra Pasupathy, Paul Seed, Berthold Koletzko, Lucilla Poston
Context: Offspring exposed in-utero to maternal obesity have an increased risk of later obesity; however, the underlying mechanisms remain unknown. Objective: To assess the effect of an antenatal lifestyle intervention in obese women on the offspring's cord blood metabolic profile, and examine associations of cord blood metabolic profile with maternal clinical characteristics and offspring anthropometry at birth and age 6 months. Design: Randomised controlled trial and cohort study...
November 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29140125/diabetes-area-patent-participation-analysis-part-ii-years-2011-2016
#9
Markus Boehm, Matthew Crawford, Jamie E Moscovitz, Philip A Carpino
Diabetes is a metabolic disease characterized by elevated levels of plasma glucose. When untreated, diabetes increases the risk of developing co-morbidities such as cardiovascular disease. Several drugs, often used as part of combination therapies, have been approved to treat the disease, but these drugs will eventually fail to effectively control blood glucose levels, at which point insulin replacement therapy is required. A medical need exists for new anti-diabetic drugs that exhibit good efficacy with improved safety/toleration profiles and can be added on top of existing therapies, or that can provide additional benefits beyond glucose lowering such as pancreatic beta (β)-cell protection...
November 15, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/29138968/mitochondrial-dysfunctions-contribute-to-energy-deficits-in-rodent-model-of-hepatic-encephalopathy
#10
Saurabh Dhanda, Aditya Sunkaria, Avishek Halder, Rajat Sandhir
Perturbations in the cerebral energy metabolism are anticipated to be an important factor by which ammonia may exert its toxic effects on the central nervous system. The present study was designed to investigate the role of impaired mitochondrial functions and cerebral energy metabolism in the development hepatic encephalopathy (HE) induced by of bile duct ligation (BDL). After four weeks of BDL, a significant increase in hepatic hydroxyproline and collagen content was observed which confirmed biliary fibrosis...
November 14, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29138850/role-of-mitochondrial-function-in-the-invasiveness-of-human-colon-cancer-cells
#11
Chen-Sung Lin, Li-Tzu Liu, Liang-Hung Ou, Siao-Cian Pan, Chia-I Lin, Yau-Huei Wei
We investigated the role of mitochondrial function in the invasiveness of human colorectal cancer (CRC) cell lines, using paired primary SW480 and metastatic SW620 cells, and appraised the clinical relevance of the alteration of mtDNA copy number in 33 pairs of CRC specimens after surgical resection. Suppression of mitochondrial function was achieved by the exposure of cells to oligomycin A (OA) or by knockdown of mitochondrial transcriptional factor A (TFAM) to evaluate their effects on energy metabolism, reactive oxygen species, protein expression levels of epithelial-mesenchymal transition (EMT) markers and invasive activity of CRC cells...
November 9, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29138799/lychee-seed-extract-protects-against-neuronal-injury-and-improves-cognitive-function-in-rats-with-type-ii-diabetes-mellitus-with-cognitive-impairment
#12
Yong Tang, Chonglin Yu, Jianming Wu, Haixia Chen, Yuan Zeng, Xiuling Wang, Le Yang, Qibing Mei, Shousong Cao, Dalian Qin
Lychee seed is a traditional Chinese medicine and has many beneficial effects such as modulation of blood sugar and lipids, antioxidation, antivirus and antitumor. Studies have indicated that type II diabetes mellitus (T2DM) and Alzheimer's disease (AD) share common biological mechanisms including insulin resistance, impaired glucose metabolism, β‑amyloid (Aβ) formation, oxidative stress and presence of advanced glycation end products (AGEs). The present study investigated the effects of lychee seed extract (LSE) on neuroprotection, cognitive function improvement and possible underlying mechanisms in a rat model of T2DM with cognitive impairment...
November 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29138681/cell-signaling-with-extracellular-thioredoxin-and-thioredoxin-like-proteins-insight-into-their-mechanisms-of-action
#13
REVIEW
Thierry Léveillard, Najate Aït-Ali
Thioredoxins are small thiol-oxidoreductase enzymes that control cellular redox homeostasis. Paradoxically, human thioredoxin (TXN1) was first identified as the adult T cell leukemia-derived factor (ADF), a secreted protein. ADF has been implicated in a wide variety of cell-to-cell communication systems acting as a cytokine or a chemokine. TRX80 is a truncated TXN1 protein with cytokine activity. The unconventional secretion mechanism of these extracellular thioredoxins is unknown. The thioredoxin system is relying on glucose metabolism through the pentose phosphate pathway that provides reducing power in the form of NADPH, the cofactor of thioredoxin reductase (TXNRD)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29138588/rai1-gene-mutations-mechanisms-of-smith-magenis-syndrome
#14
REVIEW
Mariateresa Falco, Sonia Amabile, Fabio Acquaviva
Smith-Magenis syndrome (SMS; OMIM #182290) is a complex genetic disorder characterized by distinctive physical features, developmental delay, cognitive impairment, and a typical behavioral phenotype. SMS is caused by interstitial 17p11.2 deletions, encompassing multiple genes and including the retinoic acid-induced 1 gene (RAI1), or by mutations in RAI1 itself. About 10% of all the SMS patients, in fact, carry an RAI1 mutation responsible for the phenotype. RAI1 (OMIM *607642) is a dosage-sensitive gene expressed in many tissues and highly conserved among species...
2017: Application of Clinical Genetics
https://www.readbyqxmd.com/read/29138586/association-between-metabolic-syndrome-and-sensorineural-hearing-loss-a-cross-sectional-study-of-11-114-participants
#15
Javad Aghazadeh-Attari, Behnam Mansorian, Mohammad Mirza-Aghazadeh-Attari, Jamal Ahmadzadeh, Iraj Mohebbi
Background/objectives: Hearing loss (HL) is associated with certain diseases and affects health, resulting in a low quality of life. Some components of the metabolic syndrome (MetS) coincide with the risk factors for sensorineural hearing loss (SNHL). To date, very few studies have examined the link between MetS and HL. The aim of the current study was to try to understand the potential association between MetS and HL. Methods: Using Iranian health surveys of professional drivers, we enrolled 11,114 individuals aged 20-60 years, whose main job is to operate a motor vehicle...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/29138452/excessive-fuel-availability-amplifies-the-fto-mediated-obesity-risk-results-from-the-tuef-and-whitehall-ii-studies
#16
Róbert Wagner, Ádám G Tabák, Ellen Fehlert, Louise Fritsche, Benjamin A Jaghutriz, Róbert J Bánhegyi, Sebastian M Schmid, Harald Staiger, Fausto Machicao, Andreas Peter, Hans-Ulrich Häring, Andreas Fritsche, Martin Heni
Variation in FTO is the most important common genetic determinant of body weight. Altered energy metabolism could underlie this association. We hypothesized that higher circulating glucose or triglycerides can amplify the FTO impact on BMI. In 2671 subjects of the TUEF study, we investigated the interaction effect of fasting glucose and triglyceride levels with rs9939609 in FTO on BMI. We analysed the same interaction effect by longitudinally utilizing mixed effect models in the prospective Whitehall II study...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138396/polo-like-kinase-1-coordinates-biosynthesis-during-cell-cycle-progression-by-directly-activating-pentose-phosphate-pathway
#17
Xiaoyu Ma, Lin Wang, De Huang, Yunyan Li, Dongdong Yang, Tingting Li, Fudong Li, Linchong Sun, Haoran Wei, Kun He, Fazhi Yu, Debiao Zhao, Lan Hu, Songge Xing, Zhaoji Liu, Kui Li, Jing Guo, Zhenye Yang, Xin Pan, Ailing Li, Yunyu Shi, Junfeng Wang, Ping Gao, Huafeng Zhang
Two hallmarks for cancer cells are the accelerated cell cycle progression as well as the altered metabolism, however, how these changes are coordinated to optimize the growth advantage for cancer cells are still poorly understood. Here we identify that Polo-like kinase 1 (Plk1), a key regulator for cell mitosis, plays a critical role for biosynthesis in cancer cells through activating pentose phosphate pathway (PPP). We find that Plk1 interacts with and directly phosphorylates glucose-6-phosphate dehydrogenase (G6PD)...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29138271/addressing-the-perfect-storm-biomarkers-in-obesity-and-pathophysiology-of-cardiometabolic-risk
#18
REVIEW
Krasimira Aleksandrova, Dariush Mozaffarian, Tobias Pischon
BACKGROUND: The worldwide rise of obesity has provoked intensified research to better understand its pathophysiology as a means for disease prevention. Several biomarkers that may reflect various pathophysiological pathways that link obesity and cardiometabolic diseases have been identified over the past decades. CONTENT: We summarize research evidence regarding the role of established and novel obesity-related biomarkers, focusing on recent epidemiological evidence for detrimental associations with cardiometabolic diseases including obesity-related cancer...
November 14, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29138256/low-neonatal-plasma-n-6-n-3-pufa-ratios-regulate-offspring-adipogenic-potential-and-condition-adult-obesity-resistance
#19
Michael C Rudolph, Matthew R Jackman, David M Presby, Julie A Houck, Patricia G Webb, Ginger C Johnson, Taylor K Soderborg, Becky A de la Houssaye, Ivana V Yang, Jacob E Friedman, Paul S MacLean
Adipose tissue expansion (ATE) progresses rapidly during postnatal life, influenced by both prenatal maternal factors and postnatal developmental cues. The ratio of n-6 relative to n-3 polyunsaturated fatty acids (PUFA) is thought to regulate perinatal adipogenesis, but the cellular mechanisms and long-term effects are not well understood. We lowered the fetal and postnatal n-6/n-3 PUFA ratio exposure in wildtype offspring, under standard maternal dietary fat amounts, to test effects of low n-6/n-3 ratios on offspring adipogenesis and adipogenic potential...
November 14, 2017: Diabetes
https://www.readbyqxmd.com/read/29138227/the-hepatokines-fetuin-a-and-fetuin-b-are-up-regulated-in-the-state-of-hepatic-steatosis-and-may-differently-impact-on-glucose-homeostasis-in-humans
#20
Andreas Peter, Marketa Kovarova, Harald Staiger, Jürgen Machann, Fritz Schick, Alfred Königsrainer, Ingmar Koenigsrainer, Erwin D Schleicher, Andreas Fritsche, Hans-Ulrich Häring, Norbert Stefan
The liver is a central regulator of whole-body glucose and lipid homeostasis and hepatokines, like fetuin-A, have been identified as markers and mediators of fatty liver-induced cardiometabolic risk. The closely related protein fetuin-B was shown to be up-regulated in the fatty liver and to impact on glucose homeostasis in mice. In the present study we aimed to test the relevance of these findings in humans. In 55 subjects hepatic mRNA expression of both hepatokines, fetuin-A and fetuin-B, associated positively with liver triglyceride content, while only fetuin-A expression associated with the homeostatic model assessment of insulin resistance...
November 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
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