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https://www.readbyqxmd.com/read/28928357/successful-dual-kidney-transplantation-after-hypothermic-oxygenated-perfusion-of-discarded-human-kidneys
#1
Matteo Ravaioli, Vanessa De Pace, Giorgia Comai, Marco Busutti, Massimo Del Gaudio, Annalisa Amaduzzi, Alessandro Cucchetti, Antonio Siniscalchi, Gaetano La Manna, Antonietta A D D'Errico, Antonio Daniele Pinna
BACKGROUND The recovery of discarded human kidneys has increased in recent years and impels to use of unconventional organ preservation strategies that improve graft function. We report the first case of human kidneys histologically discarded and transplanted after hypothermic oxygenated perfusion (HOPE). CASE REPORT Marginal kidneys from a 78-year-old woman with brain death were declined by Italian transplant centers due to biopsy score (right kidney: 6; left kidney: 7). We recovered and preserved both kidneys through HOPE and we revaluated their use for transplantation by means of perfusion parameters...
September 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28928280/the-enigma-of-embryonic-diapause
#2
REVIEW
Marilyn B Renfree, Jane C Fenelon
Embryonic diapause - a period of embryonic suspension at the blastocyst stage - is a fascinating phenomenon that occurs in over 130 species of mammals, ranging from bears and badgers to mice and marsupials. It might even occur in humans. During diapause, there is minimal cell division and greatly reduced metabolism, and development is put on hold. Yet there are no ill effects for the pregnancy when it eventually continues. Multiple factors can induce diapause, including seasonal supplies of food, temperature, photoperiod and lactation...
September 15, 2017: Development
https://www.readbyqxmd.com/read/28925980/changes-in-fatty-acid-composition-of-human-milk-in-response-to-cold-like-symptoms-in-the-lactating-mother-and-infant
#3
Andrew S Gardner, Ibrahim A Rahman, Ching T Lai, Anna Hepworth, Naomi Trengove, Peter E Hartmann, Donna T Geddes
Infants rely on their innate immune systems to protect them from infection. Human milk (HM) contains fatty acids (FAs) and monoacylglycerols that are known to exhibit antiviral and antibacterial properties in vitro. The specific fat content of HM may potentially affect the efficacy of this antimicrobial activity. This preliminary study investigates whether the proportions of FA in HM change in response to infections, leading to cold-like symptoms in the mother or infant. Milk samples were obtained from mothers (n = 26) when they and their infants were healthy, and when mother, infant, or both suffered cold-like symptoms...
September 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28925267/absolute-quantification-of-human-milk-caseins-and-the-whey-casein-ratio-during-the-first-year-of-lactation
#4
Yalin Liao, Darren Weber, Wei Xu, Blythe P Durbin-Johnson, Brett S Phinney, Bo Lönnerdal
Whey proteins and caseins in breast milk provide bioactivities and also have different amino acid composition. Accurate determination of these two major protein classes will therefore provide a better understanding of human milk composition and function, further aid in developing improved infant formulas based on bovine whey proteins and caseins. In this study, we implemented a LC-MS/MS quantitative analysis based on iBAQ label-free quantitation, to estimate absolute concentrations of alpha-casein, beta-casein and kappa-casein in human milk samples (n=88) collected between day 1 and day 360 post partum...
September 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28923861/mct1-inhibitor-azd3965-increases-mitochondrial-metabolism-facilitating-combination-therapy-and-non-invasive-magnetic-resonance-spectroscopy
#5
Mounia Beloueche-Babari, Slawomir Wantuch, Teresa Casals Galobart, Markela Koniordou, Harold G Parkes, Vaitha Arunan, Yuen-Li Chung, Thomas R Eykyn, Paul D Smith, Martin O Leach
Monocarboxylate transporters (MCT) modulate tumor cell metabolism and offer promising therapeutic targets for cancer treatment. Understanding the impact of MCT blockade on tumor cell metabolism may help develop combination strategies or identify pharmacodynamic biomarkers to support the clinical development of MCT inhibitors now in clinical trials. In this study, we assessed the impact of the MCT1 inhibitor AZD3965 on cancer cell metabolism in vitro and in vivo. Exposing human lymphoma and colon carcinoma cells to AZD3965 increased MCT4-dependent accumulation of intracellular lactate, inhibiting monocarboxylate influx and efflux...
September 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28919581/antitumor-response-to-a-codon-optimized-hpv-16-e7-hsp70-fusion-antigen-dna-vaccine
#6
Hoorieh Soleimanjahi, Hadi Razavinikoo, Fatemeh Fotouhi, Abdollah Ardebili
BACKGROUND: Vaccines based on virus-like particles are effective against Human Papilloma Virus (HPV) infection; however, they have not shown a therapeutic effect against HPV-associated diseases. New immunotherapy strategies based on immune responses against tumor antigens can positively affect the clearance of HPV-associated lesions. OBJECTIVE: To generate two therapeutic fusion DNA vaccines (optimizedE7/mouseHSP70 and wildE7/mouseHSP70) to induce antitumor specific responses in mice models...
September 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28918936/intermittent-fasting-promotes-white-adipose-browning-and-decreases-obesity-by-shaping-the-gut%C3%A2-microbiota
#7
Guolin Li, Cen Xie, Siyu Lu, Robert G Nichols, Yuan Tian, Licen Li, Daxeshkumar Patel, Yinyan Ma, Chad N Brocker, Tingting Yan, Kristopher W Krausz, Rong Xiang, Oksana Gavrilova, Andrew D Patterson, Frank J Gonzalez
While activation of beige thermogenesis is a promising approach for treatment of obesity-associated diseases, there are currently no known pharmacological means of inducing beiging in humans. Intermittent fasting is an effective and natural strategy for weight control, but the mechanism for its efficacy is poorly understood. Here, we show that an every-other-day fasting (EODF) regimen selectively stimulates beige fat development within white adipose tissue and dramatically ameliorates obesity, insulin resistance, and hepatic steatosis...
September 13, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28917126/effects-of-a-single-administration-of-different-gonadotropins-on-day-7%C3%A2-post-insemination-on-pregnancy-outcomes-of-rabbit-does
#8
N M Hashem, Z R Aboul-Ezz
This study aimed to investigate the effects of a single administration of one of three different gonadotropins on Day 7 post-insemination on ovarian activity, progesterone (P4) concentration and pregnancy outcomes of rabbit does. Multiparous, non-lactating, V-line does were artificially inseminated after synchronization and ovulation induction with equine chorionic gonadotropin (eCG; 25 IU im) and gonadotropin releasing hormone (GnRH; 0.8  μg buserelin im) 48 h later. On Day 7 post-inseminarion, does were randomly allocated into four groups (n = 40/group)...
September 7, 2017: Theriogenology
https://www.readbyqxmd.com/read/28916726/the-nqo1-bioactivatable-drug-%C3%AE-lapachone-alters-the-redox-state-of-nqo1-pancreatic-cancer-cells-causing-perturbation-in-central-carbon-metabolism
#9
Molly A Silvers, Stanislaw Deja, Naveen Singh, Robert A Egnatchik, Jessica Sudderth, Xiuquan Luo, Muhammad S Beg, Shawn C Burgess, Ralph J DeBerardinis, David A Boothman, Matthew E Merritt
Many cancer treatments, such as those for managing recalcitrant tumors like pancreatic ductal adenocarcinoma, cause off-target toxicities in normal, healthy tissue, highlighting the need for more tumor-selective chemotherapies. β-Lapachone is bioactivated by NAD(P)H:quinone oxidoreductase 1 (NQO1). This enzyme exhibits elevated expression in most solid cancers and therefore is a potential cancer-specific target. β-Lapachone's therapeutic efficacy partially stems from the drug's induction of a futile NQO1-mediated redox cycle that causes high levels of superoxide, then peroxide formation, which damages DNA and causes hyperactivation of poly (ADP-ribose) polymerase (PARP), resulting in extensive NAD+/ATP depletion...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28915945/potentiometric-sensor-for-non-invasive-lactate-determination-in-human-sweat
#10
Massimo Onor, Stefano Gufoni, Tommaso Lomonaco, Silvia Ghimenti, Pietro Salvo, Fiodor Sorrentino, Emilia Bramanti
The present work describes a non invasive lactate sensing in sweat during workout. The sensing system is based on a non-equilibrium potentiometric measure performed using disposable, chemically modified, screen printed carbon electrodes (SPCEs) that can be wetted with sweat during the exercise. The potentiometric signal, which is proportional to lactate concentration in sweat, is produced by a redox reaction activated by UV radiation, as opposed to the enzymatic reaction employed in traditional, blood-based measuring devices...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915575/hexokinase-2-promotes-tumor-growth-and-metastasis-by-regulating-lactate-production-in-pancreatic-cancer
#11
Marybeth Anderson, Raoud Marayati, Richard Moffitt, Jen Jen Yeh
Pancreatic ductal adenocarcinoma (PDAC) is a KRAS-driven cancer with a high incidence of metastasis and an overall poor prognosis. Previous work in a genetically engineered mouse model of PDAC showed glucose metabolism to be important for maintaining tumor growth. Multiple glycolytic enzymes, including hexokinase 2 (HK2), were upregulated in primary PDAC patient tumors, supporting a role for glycolysis in promoting human disease. HK2 was most highly expressed in PDAC metastases, suggesting a link between HK2 and aggressive tumor biology...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915495/impact-of-chemotherapy-on-metabolic-reprogramming-characterization-of-the-metabolic-profile-of-breast-cancer-mda-mb-231-cells-using-1-h-hr-mas-nmr-spectroscopy
#12
Roberta M Maria, Wanessa F Altei, Heloisa S Selistre-de-Araujo, Luiz A Colnago
Doxorubicin, cisplatin, and tamoxifen are part of many chemotherapeutic regimens. However, studies investigating the effect of chemotherapy on the metabolism of breast cancer cells are still limited. We used (1)H high-resolution magic angle spinning (HR-MAS) NMR spectroscopy to study the metabolic profile of human breast cancer MDA-MB-231 cells either untreated (control) or treated with tamoxifen, cisplatin, and doxorubicin. (1)H HR-MAS NMR single pulse spectra evidenced signals from all mobile cell compounds, including fatty acids (membranes), water-soluble proteins, and metabolites...
September 12, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28914791/quercetin-attenuates-manganese-induced-neuroinflammation-by-alleviating-oxidative-stress-through-regulation-of-apoptosis-inos-nf-%C3%AE%C2%BAb-and-ho-1-nrf2-pathways
#13
Entaz Bahar, Ji-Ye Kim, Hyonok Yoon
Manganese (Mn) is an essential trace element required for the development of human body and acts as an enzyme co-factor or activator for various reactions of metabolism. While essential in trace amounts, excessive Mn exposure can result in toxic accumulations in human brain tissue and resulting extrapyramidal symptoms called manganism similar to idiopathic Parkinson's disease (PD). Quercetin (QCT) has been demonstrated to play an important role in altering the progression of neurodegenerative diseases by protecting against oxidative stress...
September 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28912882/atorvastatin-alleviates-iodinated-contrast-media-induced-cytotoxicity-in-human-proximal-renal-tubular-epithelial-cells
#14
Gai-Ling Liu, Rong Lei, Shao-Bin Duan, Mi-Mi Tang, Min Luo, Qian Xu
Contrast media (CM)-induced nephropathy (CIN) is a serious complication of intravascularly applied radiocontrast media. At present, no drugs have been approved for the prevention of CIN. The present study aimed to explore the effects and potential mechanisms of atorvastatin on iodinated CM-induced cytotoxicity in the human proximal renal tubular epithelial cells. The cytotoxic effect of iohexol (50, 100 and 200 mg I/ml) and the protective effect of atorvastatin pretreatment (1, 20 and 40 µM) were assessed...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28910416/lateralized-behaviour-as-indicator-of-affective-state-in-dairy-cows
#15
Sarah Kappel, Michael T Mendl, David C Barrett, Joanna C Murrell, Helen R Whay
In humans, there is evidence that sensory processing of novel or threatening stimuli is right hemisphere dominated, especially in people experiencing negative affective states. There is also evidence for similar lateralization in a number of non-human animal species. Here we investigate whether this is also the case in domestic cattle that may experience long-term negative states due to commonly occurring conditions such as lameness. Health and welfare implications associated with pain in lame cows are a major concern in dairy farming...
2017: PloS One
https://www.readbyqxmd.com/read/28910308/pulmonary-hypertension-among-5-to-18-year-old-children-with-sickle-cell-anaemia-in-nigeria
#16
Ogochukwu J Sokunbi, Ekanem N Ekure, Edamisan O Temiye, Roosevelt Anyanwu, Christy A N Okoromah
BACKGROUND: Pulmonary hypertension (PHT) is a significant cause of mortality in patients with sickle cell disease (SCD). Few studies on PHT in SCD have been carried out in children. This study aimed to estimate the prevalence of PHT in children with sickle cell anaemia (SCA) and determine its clinical and laboratory correlates. METHODS: In this cross sectional study, evaluation involved obtaining bio-data, history and physical examination findings in 175 SCA subjects with haemoglobin genotype SS aged 5 to 18 years and 175 age and sex matched controls with haemoglobin genotype AA...
2017: PloS One
https://www.readbyqxmd.com/read/28903110/flavor-perception-and-preference-development-in-human-infants
#17
Catherine A Forestell
As most parents and caregivers are aware, feeding children a nutritionally balanced diet can be challenging. Children are born with a biological predisposition to prefer sweet and to avoid bitter foods such as green leafy vegetables. It has been hypothesized that this predisposition evolved to attract children to energy-dense foods while discouraging the consumption of toxins. Although this may have enhanced survival in environments historically characterized by food scarcity, it is clearly maladaptive in many of today's food environments where children are surrounded by an abundance of sweet-tasting, unhealthful foods and beverages that place them at risk for excessive weight gain...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28902347/measuring-the-response-of-human-head-and-neck-squamous-cell-carcinoma-to-irradiation-in-a-microfluidic-model-allowing-customized-therapy
#18
Ramsah Cheah, Rishi Srivastava, Nicholas D Stafford, Andrew W Beavis, Victoria Green, John Greenman
Radiotherapy is the standard treatment for head and neck squamous cell carcinoma (HNSCC), however, radioresistance remains a major clinical problem despite significant improvements in treatment protocols. Therapeutic outcome could potentially be improved if a patient's tumour response to irradiation could be predicted ex vivo before clinical application. The present study employed a bespoke microfluidic device to maintain HNSCC tissue whilst subjecting it to external beam irradiation and measured the responses using a panel of cell death and proliferation markers...
October 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28901286/biochemical-adaptations-of-the-retina-and-retinal-pigment-epithelium-support-a-metabolic-ecosystem-in-the-vertebrate-eye
#19
Mark A Kanow, Michelle M Giarmarco, Connor Sr Jankowski, Kristine Tsantilas, Abbi L Engel, Jianhai Du, Jonathan D Linton, Christopher C Farnsworth, Stephanie R Sloat, Austin Rountree, Ian R Sweet, Ken J Lindsay, Edward D Parker, Susan E Brockerhoff, Martin Sadilek, Jennifer R Chao, James B Hurley
Here we report multiple lines of evidence for a comprehensive model of energy metabolism in the vertebrate eye. Metabolic flux, locations of key enzymes, and our finding that glucose enters mouse and zebrafish retinas mostly through photoreceptors support a conceptually new model for retinal metabolism. In this model, glucose from the choroidal blood passes through the retinal pigment epithelium to the retina where photoreceptors convert it to lactate. Photoreceptors then export the lactate as fuel for the retinal pigment epithelium and for neighboring Müller glial cells...
September 13, 2017: ELife
https://www.readbyqxmd.com/read/28898241/alterations-in-the-programming-of-energy-metabolism-in-adolescents-with-background-exposure-to-dioxins-dl-pcbs-and-pbdes
#20
Marike M Leijs, Janna G Koppe, Thomas Vulsma, Kees Olie, Wim M C van Aalderen, Pim de Voogt, Juliette Legler, Gavin W Ten Tusscher
OBJECTIVES: Dioxins and PCBs are highly toxic and persistent environmental pollutants that are measurable in humans worldwide. These persistent organic pollutants are associated with a higher incidence of diabetes mellitus. We hypothesise that perinatal (background) exposure to industrial pollutants like dioxins also influences body mass development and energy metabolism in later life. STUDY DESIGN: In The Netherlands, the perinatal exposure (prenatal exposure and postnatal lactational intake) to dioxins has been studied prospectively since 1987...
2017: PloS One
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