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https://www.readbyqxmd.com/read/28079354/effect-of-excess-iodine-intake-on-thyroid-on-human-health
#1
Eftychia G Koukkou, Nikolaos D Roupas, Kostas B Markou
INTRODUCTION: The recommended daily intake of iodide, is 150 μg for adolescents and adults, 175 μg for pregnancy and 200 μg for lactation. Thyroid gland is an effective collector of iodine. EVIDENCE ACQUISITION: The active iodine uptake along the basolateral membrane of thyroid cell is followed by its transport to the apical edge of the cell and then to the follicle lumen. TSH acts through cAMP and stimulates NIS gene expression and protein synthesis. The major proportion of iodine in the thyroid gland is bound to Thyroglobulin...
January 12, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28077256/montivipera-bornmuelleri-venom-selectively-exhibits-high-cytotoxic-effects-on-keratinocytes-cancer-cell-lines
#2
Saly Sawan, Tania Yaacoub, Souad Hraoui-Bloquet, Riyad Sadek, Walid Hleihel, Ziad Fajloun, Marc Karam
CONTEXT: The Viperidae family venom is a rich source of bioactive compounds such as many proteases, which cause tissue necrosis and affect mostly the vascular system. However, the venom exhibits therapeutic potentials and has contributed to the development of some medical drugs. Specifically, the Montivipera bornmuelleri venom has shown to exhibit antibacterial, pro-inflammatory and antifungal activities. OBJECTIVE: This work evaluates the cytotoxic effect of the M...
January 8, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28076790/the-anti-warburg-effect-elicited-by-the-camp-pgc1%C3%AE-pathway-drives-differentiation-of-glioblastoma-cells-into-astrocytes
#3
Fan Xing, Yizhao Luan, Jing Cai, Sihan Wu, Jialuo Mai, Jiayu Gu, Haipeng Zhang, Kai Li, Yuan Lin, Xiao Xiao, Jiankai Liang, Yuan Li, Wenli Chen, Yaqian Tan, Longxiang Sheng, Bingzheng Lu, Wanjun Lu, Mingshi Gao, Pengxin Qiu, Xingwen Su, Wei Yin, Jun Hu, Zhongping Chen, Ke Sai, Jing Wang, Furong Chen, Yinsheng Chen, Shida Zhu, Dongbing Liu, Shiyuan Cheng, Zhi Xie, Wenbo Zhu, Guangmei Yan
Glioblastoma multiforme (GBM) is among the most aggressive of human cancers. Although differentiation therapy has been proposed as a potential approach to treat GBM, the mechanisms of induced differentiation remain poorly defined. Here, we established an induced differentiation model of GBM using cAMP activators that specifically directed GBM differentiation into astroglia. Transcriptomic and proteomic analyses revealed that oxidative phosphorylation and mitochondrial biogenesis are involved in induced differentiation of GBM...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28075610/factors-affecting-lactoferrin-concentration-in-human-milk-how-much-do-we-know
#4
Aasith Villavicencio, Maria S Rueda, Christie G Turin, Theresa J Ochoa
Lactoferrin (LF) is a breast milk glycoprotein with antimicrobial and anti-inflammatory effects. Its beneficial properties in infants, especially in those born preterm, are currently being studied in clinical trials. However, the maternal and nursing infant factors that may affect LF concentration in breast milk are still not clear. We conducted a systematic review to investigate the factors that may affect the concentration of LF in breast milk. We used a 2-step approach to identify the eligible studies according to inclusion/exclusion criteria, and to determine which studies would be considered...
August 4, 2016: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28075415/inhibitory-effects-of-probiotic-lactobacillus-on-the-growth-of-human-colonic-carcinoma-cell-line-ht-29
#5
Zhung-Yuan Chen, You-Miin Hsieh, Chun-Chih Huang, Cheng-Chih Tsai
This study was conducted to investigate the inhibitory effect of Lactobacillus cells and supernatants on the growth of the human colon cancer cell line HT-29. Our study results indicated that the PM153 strain exhibits the best adhesion ability and the highest survival in the gastrointestinal tract simulation experiment. Furthermore, after an 8-h co-culture of PM153 and HT-29 cells, the PM153 strain can induce the secretion of nitric oxide from the HT-29 cells. In addition, after the co-culture of the BCRC17010 strain (10⁸ cfu/mL) and HT-29 cells, the Bax/Bcl-2 ratio in the HT-29 cells was 1...
January 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28072864/1h-nmr-metabolomics-reveals-association-of-high-expression-of-inositol-1-4-5-trisphosphate-receptor-and-metabolites-in-breast-cancer-patients
#6
Aru Singh, Raj Kumar Sharma, Megha Chagtoo, Gaurav Agarwal, Nelson George, Neeraj Sinha, Madan M Godbole
1H NMR is used to detect alterations in metabolites and their linkage to metabolic processes in a number of pathological conditions including breast cancer. Inositol 1, 4, 5 trisphosphate (IP3R) receptor is an intracellular calcium channel known to regulate metabolism and cellular bioenergetics. Its expression is up regulated in a number of cancers. However, its linkage to metabolism in disease conditions has not been evaluated. This study was designed to determine the association if any, of these metabolites with altered expression of IP3R in breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28071964/hypercapnia-is-essential-to-reduce-the-cerebral-oxidative-metabolism-during-extreme-apnea-in-humans
#7
Anthony R Bain, Philip N Ainslie, Otto F Barak, Ryan L Hoiland, Ivan Drvis, Tanja Mijacika, Damian M Bailey, Antoinette Santoro, Daniel K DeMasi, Zeljko Dujic, David B MacLeod
The cerebral metabolic rate of oxygen (CMRO2) is reduced during apnea that yields profound hypoxia and hypercapnia. In this study, to dissociate the impact of hypoxia and hypercapnia on the reduction in CMRO2, 11 breath-hold competitors completed three apneas under: (a) normal conditions (NM), yielding severe hypercapnia and hypoxemia, (b) with prior hyperventilation (HV), yielding severe hypoxemia only, and (c) with prior 100% oxygen breathing (HX), yielding the greatest level of hypercapnia, but in the absence of hypoxemia...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28070294/habitat-performance-relationships-of-a-large-mammal-on-a-predator-free-island-dominated-by-humans
#8
Andrew M Allen, Augusta Dorey, Jonas Malmsten, Lars Edenius, Göran Ericsson, Navinder J Singh
The demographic consequences of changes in habitat use driven by human modification of landscape, and/or changes in climate, are important for any species. We investigated habitat-performance relationships in a declining island population of a large mammal, the moose (Alces alces), in an environment that is predator-free but dominated by humans. We used a combination of demographic data, knowledge of habitat selection, and multiannual movement data of female moose (n = 17) to understand how space use patterns affect fecundity and calf survival...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28067784/sailuotong-prevents-hydrogen-peroxide-h%C3%A2-o%C3%A2-induced-injury-in-ea-hy926-cells
#9
Sai Wang Seto, Dennis Chang, Wai Man Ko, Xian Zhou, Hosen Kiat, Alan Bensoussan, Simon M Y Lee, Maggie P M Hoi, Genevieve Z Steiner, Jianxun Liu
Sailuotong (SLT) is a standardised three-herb formulation consisting of Panax ginseng, Ginkgo biloba, and Crocus sativus designed for the management of vascular dementia. While the latest clinical trials have demonstrated beneficial effects of SLT in vascular dementia, the underlying cellular mechanisms have not been fully explored. The aim of this study was to assess the ability and mechanisms of SLT to act against hydrogen peroxide (H₂O₂)-induced oxidative damage in cultured human vascular endothelial cells (EAhy926)...
January 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28065864/value-of-ph-regulators-in-the-diagnosis-prognosis-and-treatment-of-cancer
#10
REVIEW
Sara Granja, Diana Tavares-Valente, Odília Queirós, Fátima Baltazar
Altered metabolism, associated with acidification of the extracellular milieu, is one of the major features of cancer. As pH regulation is crucial for the maintenance of all biological functions, cancer cells rely on the activity of lactate exporters and proton transporters to regulate their intracellular pH. The major players in cancer pH regulation are proton pump ATPases, sodium-proton exchangers (NHEs), monocarboxylate transporters (MCTs), carbonic anhydrases (CAs) and anion exchangers (AEs), which have been shown to be upregulated in several human malignancies...
January 5, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28064106/neuroprotective-effects-of-erythropoietin-against-sevoflurane-induced-neuronal-apoptosis-in-primary-rat-cortical-neurons-involving-the-epor-erk1-2-nrf2-bach1-signal-pathway
#11
Dong-Xue Zhang, Li-Min Zhang, Xiao-Chun Zhao, Wenbo Sun
OBJECTIVE: Erythropoietin (EPO)-induced activation of the EPO receptor (EPOR) against sevoflurane-induced neuronal apoptosis is an effective intervention, but the underlying mechanism is poorly understood. Previous studies have shown that alteration of the nuclear factor erythroid 2-related factor (Nrf2)/BTB-to-CNC homology 1 (Bach1) ratio by extracellular signal-related kinases (Erk) 1/2 ameliorates the oxidative stress which occurs in human macrophages. In this study, we determined whether or not EPO attenuates sevoflurane-induced neuronal apoptosis via the EPOR-Erk1/2-Nrf2/Bach1 signal pathway...
January 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28061381/hyperpolarized-13-c-pyruvate-mouse-brain-metabolism-with-absorptive-mode-epsi-at-1t
#12
Vesselin Z Miloushev, Valentina Di Gialleonardo, Lucia Salamanca-Cardona, Fabian Correa, Kristin L Granlund, Kayvan R Keshari
The expected signal in echo-planar spectroscopic imaging experiments was explicitly modeled jointly in spatial and spectral dimensions. Using this as a basis, absorptive-mode type detection can be achieved by appropriate choice of spectral delays and post-processing techniques. We discuss the effects of gradient imperfections and demonstrate the implementation of this sequence at low field (1.05T), with application to hyperpolarized [1-(13)C] pyruvate imaging of the mouse brain. The sequence achieves sufficient signal-to-noise to monitor the conversion of hyperpolarized [1-(13)C] pyruvate to lactate in the mouse brain...
December 21, 2016: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28059631/acute-necrotizing-encephalopathy-causing-human-bocavirus
#13
Ayse Betul Ergul, Umit Altug, Kursad Aydin, Ahmet Sami Guven, Yasemin Altuner Torun
Acute necrotizing encephalopathy is characterized by multiple, symmetrical lesions involving the thalamus, brainstem, cerebellum, and white matter and develops secondarily to viral infections. Influenza viruses are the most common etiological agents. Here, we present the first case of acute necrotizing encephalopathy to develop secondarily to human bocavirus. A 3-year-old girl presented with fever and altered mental status. She had had a fever, cough, and rhinorrhea for five days. The patient was admitted to the intensive care unit with an initial diagnosis of encephalitis when vomiting, convulsions, and loss of consciousness developed...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28057102/-focus-on-nutrition-of-lactating-women-and-promoting-maternal-and-child-health
#14
S A Yin, Z Y Yang
Breastfeeding has been existing from the beginning of human beings. The focus has usually been on breast milk and breastfed infants. However, there have been a few studies on nutrition and health status of lactating women worldwide. Many of these studies suggested that the nutrition and health status of the women not only can affect milk volume and nutrient contents, but also may have short- and long-lasting effects on their health status. Therefore, more research should focus on breastfeeding and the improvement of nutrition and the health status of lactating women...
December 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28056945/a-mixed-methods-study-to-assess-the-effectiveness-of-food-based-interventions-to-prevent-stunting-among-children-under-five-years-in-districts-thatta-and-sujawal-sindh-province-pakistan-study-protocol
#15
Sumra Kureishy, Gul Nawaz Khan, Shabina Arrif, Khizar Ashraf, Angela Cespedes, Muhammad Atif Habib, Imtiaz Hussain, Asmat Ullah, Ali Turab, Imran Ahmed, Shehla Zaidi, Sajid Bashir Soofi
BACKGROUND: Maternal and child malnutrition is widely prevalent in low and middle income countries. In Pakistan, widespread food insecurity and malnutrition are the main contributors to poor health, low survival rates and the loss of human capital development. The nutritional status trends among children exhibit a continuous deteriorating with rates of malnutrition exceeding the WHO critical threshold. With the high prevalence of maternal and child malnutrition, it is important to identify effective preventative approaches, especially for reducing stunting in children under-five years of age...
January 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28056323/-the-role-of-neuroglobin-in-oxygen-glucose-deprivation-and-reoxygenation-induced-mitochondrial-depolarization-and-reactive-oxygen-species-production-in-sh-sy5y-cells
#16
S Y Deng, Y H Ai, L N Zhang, L Wu, C X Chen, Y M Wang, Z Y Liu, L Huang, Q Y Peng
Objective: To investigate the role of neuroglobin (NGB) in oxygen-glucose deprivation and reoxygenation (OGD/R) induced mitochondrial depolarization and reactive oxygen species (ROS)production in a human neuroblastoma cell line (SH-SY5Y). Methods: SH-SY5Y cells were transfected with lentivirus to establish a stable cell line of NGB knockdown (KD). After treated with OGD/R, cells were collected at different time points to analyze NGB mRNA and protein levels. Furthermore, cells were stained with JC-1 and DCFH-DA to evaluate mitochondrial depolarization and ROS production by inverted fluorescence microscope...
January 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28056181/an-adoptive-mother-who-became-a-human-milk-donor
#17
Beatriz Flores-Antón, Nadia Raquel García-Lara, Carmen Rosa Pallás-Alonso
Inducing lactation in the absence of pregnancy (nonpuerperal lactation) is not always successful and, in many cases, only partial breastfeeding is achieved. Different protocols have been described, but scientific evidence and research are lacking in this area. The authors describe the case of a woman with a history of a miscarriage, for whom the lactation induction process was so effective that she became a milk donor even before she received her adopted child. She had not previously used hormone treatment...
January 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28051940/a-maternal-low-fiber-diet-predisposes-offspring-to-improved-metabolic-phenotypes-in-adulthood-in-an-herbivorous-rodent
#18
Xue-Ying Zhang, Mei-Fang Lou, Wei Shen, Rong-Shu Fu, De-Hua Wang
The maternal or paternal dietary composition can have important effects on various aspects of their offspring's physiology. Studies from animal models and humans showed that a maternal high-fiber diet protected offspring against fat accumulation. However, little is known about how a maternal low-fiber diet modifies the metabolism of offspring in herbivorous rodents. We hypothesized that a maternal low-fiber diet would confer long-lasting beneficial effects on offspring metabolic phenotypes in herbivorous Brandt's vole (Lasiopodomys brandtii)...
January 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28049773/crosstalk-between-alternatively-spliced-ugt1a-isoforms-and-colon-cancer-cell-metabolism
#19
Yannick Audet-Delage, Michele Rouleau, Melanie Rouleau, Joannie Roberge, Stephanie Miard, Frederic Picard, Bernard Tetu, Chantal Guillemette
Alternative splicing at the human glucuronosyltransferase 1 gene locus (UGT1) produces alternate isoforms UGT1A_i2s that control glucuronidation activity through protein-protein interactions. Here, we hypothesized that UGT1A_i2s function into a complex protein network connecting other metabolic pathways with influence on cancer cell metabolism. This is based on a pathway enrichment analysis of proteomic data that identified several high-confidence candidate interaction proteins of UGT1A_i2 proteins in human tissues, namely the rate-limiting enzyme of glycolysis pyruvate kinase (PKM), which plays a critical role in cancer cell metabolism and tumor growth...
January 3, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28042534/effect-of-food-additive-citric-acid-on-the-growth-of-human-esophageal-carcinoma-cell-line-ec109
#20
Xiaoguang Chen, Qiongxia Lv, Yumei Liu, Wen Deng
OBJECTIVE: Today, esophageal cancer (EC) has become one of the most common cancer types in China. Therefore, new drug and therapeutic strategies are urgently needed to improve postoperative survival rate of patients with EC. As a food additive, several lines of evidence have shown that citric acid can be served as glycolysis suppressor to inhibit growth of some tumor cells. However, little is known about the effect of this organic acid on the growth of human esophageal carcinoma cell line, EC109...
2017: Cell Journal
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