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https://www.readbyqxmd.com/read/29351580/maternal-nutrient-restriction-impairs-young-adult-offspring-ovarian-signaling-resulting-in-reproductive-dysfunction-and-follicle-loss
#1
K A Chan, P A Jazwiec, W Gohir, J J Petrik, D M Sloboda
Reproductive abnormalities are included as health complications in offspring exposed to poor prenatal nutrition. We have previously shown in a rodent model, that offspring born to nutrient restriction during pregnancy are born small, enter puberty early, and display characteristics of early ovarian aging as adults. The present study investigated whether key proteins involved in follicle recruitment and growth mediate ovarian follicle loss. Pregnant rats were randomized to: a standard diet throughout pregnancy and lactation (CON), or a calorie-restricted (50% of control) diet (UN) during pregnancy...
January 17, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29351160/acute-cardiorespiratory-and-metabolic-effects-of-a-sandbag-resistance-exercise-protocol
#2
Nicholas A Ratamess, Jie Kang, Jeremy D Kuper, Elizabeth A O'Grady, Nicole L Ellis, Ira T Vought, Emma Culleton, Jill A Bush, Avery D Faigenbaum
The purpose of the present study was to examine the acute cardiorespiratory and metabolic effects of a sandbag (SB) resistance exercise protocol and compare the responses to time-matched treadmill running protocols. Eight healthy, resistance-trained men (21.1 ± 1.0 years; 86.1 ± 7.8 kg) completed four protocols of equal duration in random sequence: 1) SB, 2) treadmill running at 60% of VO2 reserve (60VO2R), 3) treadmill running at 80% of VO2 reserve (80VO2R), and 4) a control protocol. The SB protocol was 16 min in duration and consisted of 3 circuits of 8 multiple-joint exercises (with 11-, 20-, or -48 kg sandbags) performed for as many repetitions as possible for 20 sec followed by a 10-sec rest interval prior to beginning the next exercise...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29349441/association-between-sn-2-fatty-acid-profiles-of-breast-milk-and-development-of-the-infant-intestinal-microbiome
#3
Tiemin Jiang, Bin Liu, Jufang Li, Xueyan Dong, Man Lin, Minghui Zhang, Junying Zhao, Yaohua Dai, Lijun Chen
Increasing evidence shows that host diet and gut microbes are related. Previous studies have shown the effects of specific dietary fatty acids (FAs) on intestinal microbiota, but little is known about the effect of the stereospecifically numbered sn-2 position in triglycerides (TG) of human milk on the gut microbiome of infants. This study aimed at examining possible effects of sn-2 FAs of human milk on the gut microbial development of breastfeeding babies. Sn-2 FAs and intestinal microbiota were assessed by GC-MS and high-throughput 16S rRNA sequencing, respectively...
January 19, 2018: Food & Function
https://www.readbyqxmd.com/read/29346537/cerebral-mitochondrial-dysfunction-associated-with-deep-hypothermic-circulatory-arrest-in-neonatal-swine
#4
Constantine D Mavroudis, Michael Karlsson, Tiffany Ko, Marco Hefti, Javier I Gentile, Ryan W Morgan, Ross Plyler, Kobina G Mensah-Brown, Timothy W Boorady, Richard W Melchior, Tami M Rosenthal, Brandon C Shade, Kellie L Schiavo, Susan C Nicolson, Thomas L Spray, Robert M Sutton, Robert A Berg, Daniel J Licht, J William Gaynor, Todd J Kilbaugh
OBJECTIVES: Controversy remains regarding the use of deep hypothermic circulatory arrest (DHCA) in neonatal cardiac surgery. Alterations in cerebral mitochondrial bioenergetics are thought to contribute to ischaemia-reperfusion injury in DHCA. The purpose of this study was to compare cerebral mitochondrial bioenergetics for DHCA with deep hypothermic continuous perfusion using a neonatal swine model. METHODS: Twenty-four piglets (mean weight 3.8 kg) were placed on cardiopulmonary bypass (CPB): 10 underwent 40-min DHCA, following cooling to 18°C, 10 underwent 40 min DHCA and 10 remained at deep hypothermia for 40 min; animals were subsequently rewarmed to normothermia...
January 15, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29345050/metabolic-alterations-in-a-rat-model-of-hepatic-ischemia-reperfusion-injury-in-vivo-hyperpolarized-13-c-mrs-and-metabolic-imaging
#5
Chung-Man Moon, Sang-Soo Shin, Nam-Yeol Lim, Seul-Kee Kim, Yang-Joon Kang, Hyoung-Ook Kim, Seung-Jin Lee, Byung-Hyun Beak, Gwang-Woo Jeong
BACKGROUND & AIMS: Despite a number of studies addressing the pathophysiology of hepatic IRI, a gold standard test for early diagnosis and evaluation of IRI remains elusive. This study investigated the metabolic alterations in a rat model of hepatic IRI using the in vivo hyperpolarized ¹³C MRS and metabolic imaging. METHODS: Hyperpolarized 13 C MRS with IVIM-DWI were performed on the liver of seven sham-operated control rats, and seven rats before and after hepatic IRI...
January 18, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29344353/effects-of-tnf-receptor-blockade-on-in-vitro-cell-survival-and-response-to-negative-energy-balance-in-dairy-cattle
#6
C A Martel, L K Mamedova, J E Minton, M Garcia, C Legallet, B J Bradford
Background: Associative data and some controlled studies suggest that the inflammatory cytokine tumor necrosis factor (TNF) α can induce fatty liver in dairy cattle. However, research demonstrating that TNFα is a necessary component in the etiology of bovine fatty liver is lacking. The aim of this work was to evaluate whether blocking TNFα signaling with a synthetic cyclic peptide (TNF receptor loop peptide; TRLP) would improve liver metabolic function and reduce triglyceride accumulation during feed restriction...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29344352/the-use-of-feed-grade-amino-acids-in-lactating-sow-diets
#7
Laura Greiner, Pairat Srichana, James L Usry, Casey Neill, Gary L Allee, Joseph Connor, Kevin J Touchette, Christopher D Knight
Background: The use of feed grade amino acids can reduce the cost of lactation feed. With changing genetics, increasing feed costs, and higher number of pigs weaned with heavier wean weights further evaluation of higher inclusion levels of feed-grade amino acid in lactation diets than previously published is warranted. Two experiments (Exp.) were conducted to determine the optimal inclusion level of L-lysine HCl to be included in swine lactation diets while digestible lysine levels remain constant across dietary treatments and allowing feed grade amino acids to be added to the diet to maintain dietary ratios relative to lysine to maximize litter growth rate and sow reproductive performance...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29342867/a-longitudinal-study-of-25-hydroxy-vitamin-d-and-parathyroid-hormone-status-throughout-pregnancy-and-exclusive-lactation-in-new-zealand-mothers-and-their-infants-at-45%C3%A2-s
#8
Benjamin J Wheeler, Barry J Taylor, Michel de Lange, Michelle J Harper, Shirley Jones, Adel Mekhail, Lisa A Houghton
Vitamin D status and associated metabolism during pregnancy and lactation have been assessed in only a limited number of longitudinal studies, all from the northern hemisphere, with no infant data concurrently reported. Therefore, we aimed to describe longitudinal maternal and infant 25-hydroxy vitamin D (25OHD) and parathyroid hormone (PTH) status during pregnancy and up to 5 months postnatal age, in New Zealand women and their infants living at 45° S latitude. Between September 2011 and June 2013, 126 pregnant women intending to exclusively breastfeed for at least 20 weeks were recruited...
January 13, 2018: Nutrients
https://www.readbyqxmd.com/read/29341948/biochemical-changes-in-experimental-rat-model-of-abdominal-compartment-syndrome
#9
Raina G Ardasheva, Mariana D Argirova, Valentin I Turiiski, Athanas D Krustev
BACKGROUND: Increased intra-abdominal pressure (IAP) causes tissue ischemia, subsequent hypoxia, and impairment of normal tissue metabolism. Elevation of IAP above 20 mmHg leads to progression of abdominal compartment syndrome (ACS) that is associated with organ dysfunction or failure not previously manifested. AIM: To evaluate the eff ects of diff erent grades and time of exposure to IAP on biochemical parameters and oxidative stress in organs aff ected by ischemia using previously developed rat model...
December 20, 2017: Folia Medica
https://www.readbyqxmd.com/read/29337250/the-stim1-inhibitor-ml9-disrupts-basal-autophagy-in-cardiomyocytes-by-decreasing-lysosome-content
#10
S Shaikh, R Troncoso, D Mondaca-Ruff, V Parra, L Garcia, M Chiong, S Lavandero
Stromal-interaction molecule 1 (STIM1)-mediated store-operated Ca2+ entry (SOCE) plays a key role in mediating cardiomyocyte hypertrophy, both in vitro and in vivo. Moreover, there is growing support for the contribution of SOCE to the Ca2+ overload associated with ischemia/reperfusion injury. Therefore, STIM1 inhibition is proposed as a novel target for controlling both hypertrophy and ischemia/reperfusion-induced Ca2+ overload. Our aim was to evaluate the effect of ML9, a STIM1 inhibitor, on cardiomyocyte viability...
January 11, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29335876/hydrogen-metabolic-patterns-driven-by-clostridium-streptococcus-community-shifts-in-a-continuous-stirred-tank-reactor
#11
Rodolfo Palomo-Briones, Eric Trably, Nguyen Esmeralda López-Lozano, Lourdes B Celis, Hugo Oscar Méndez-Acosta, Nicolas Bernet, Elías Razo-Flores
The hydrogen (H2) production efficiency in dark fermentation systems is strongly dependent on the occurrence of metabolic pathways derived from the selection of microbial species that either consume molecular H2 or outcompete hydrogenogenic bacteria for the organic substrate. In this study, the effect of organic loading rate (OLR) on the H2 production performance, the metabolic pathways, and the microbial community composition in a continuous system was evaluated. Two bacterial genera, Clostridium and Streptococcus, were dominant in the microbial community depending on the OLR applied...
January 15, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29331829/additional-small-dose-of-prostaglandin-f2%C3%AE-at-timed-artificial-insemination-failed-to-improve-pregnancy-risk-of-lactating-dairy-cows
#12
J A Sauls, B E Voelz, L G D Mendonça, J S Stevenson
Two experiments were performed to test the hypothesis that administering PGF2α concurrent with timed artificial insemination (AI) in lactating dairy cows would enhance pregnancy per AI (P/AI). In experiment 1, lactating Holstein cows (n = 289) in one herd were enrolled after a non-pregnancy diagnosis (30-36 d after AI) to synchronize subsequent ovulation before AI. Cows were assigned randomly to receive (im) 10 mg of PGF2α concurrent with timed AI (Day 0; treatment) or no injection (control). Blood samples were collected on Days -3, 0, and 13 to determine serum concentrations of progesterone...
January 3, 2018: Theriogenology
https://www.readbyqxmd.com/read/29331466/high-grain-diets-supplemented-with-phytogenic-compounds-or-autolyzed-yeast-modulate-ruminal-bacterial-community-and-fermentation-in-dry-cows
#13
V Neubauer, R Petri, E Humer, I Kröger, E Mann, N Reisinger, M Wagner, Q Zebeli
The feeding of concentrate-rich diets may lead to microbial imbalances and dysfermentation in the rumen. The main objective of this study was to determine the effects of supplementing phytogenic compounds (PHY) or autolyzed yeast (AY) on rumen fermentation and microbial abundance in cows intermittently fed concentrate-rich diets. The experiment was carried out as an incomplete 3 × 4 Latin square design, with 8 nonlactating rumen-fistulated Holstein-Friesian cows. The cows were randomly assigned to a concentrate diet that was either not supplemented (CON), or supplemented with PHY or AY...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331464/somatic-cell-count-based-selection-reduces-susceptibility-to-energy-shortage-during-early-lactation-in-a-sheep-model
#14
J Bouvier-Muller, C Allain, F Enjalbert, Y Farizon, D Portes, G Foucras, R Rupp
During the transition from late gestation to early lactation ruminants experience a negative energy balance (NEB), which is considered to increase susceptibility to mammary infections. Our previous study in 2 divergent lines of sheep selected for high and low somatic cell score (SCS) suggested an association between the response to NEB and genetic susceptibility to mastitis. Forty-eight early-lactation primiparous dairy ewes from the 2 SCS genetic lines were allocated to 2 homogeneous subgroups-an NEB group, which was energy restricted and received 60% of the energy requirements for 15 d, and a control-fed group-to obtain 4 balanced groups of 12 ewes: high-SCS positive energy balance, low-SCS positive energy balance, high-SCS NEB, and low-SCS NEB...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331459/garlic-allium-sativum-l-fed-to-dairy-cows-does-not-modify-the-cheese-making-properties-of-milk-but-affects-the-color-texture-and-flavor-of-ripened-cheese
#15
Giulia Rossi, Stefano Schiavon, Giovanna Lomolino, Claudio Cipolat-Gotet, Alberto Simonetto, Giovanni Bittante, Franco Tagliapietra
Garlic and garlic components have recently been proposed as ruminal activity modulators to reduce the enteric methane emissions of ruminants, but little is known of their influence on milk coagulation properties, nutrient recovery, cheese yield, and sensorial and rheological characteristics of milk and cheese. The present study assessed the effects of garlic and diallyl sulfide supplements on dry matter intake (DMI), productive performance, milk coagulation properties, cheese yield, milk and cheese sensory profiles, and rheological characteristics...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331457/effect-of-the-concentration-of-circulating-prolactin-on-dairy-cows-responsiveness-to-domperidone-injection
#16
J J Tong, I M Thompson, X Zhao, P Lacasse
The objective of this study was to determine whether the responsiveness of the mammary gland to prolactin (PRL) is affected by the concentration of the hormone. After 1 pre-experimental week (d -7 to -1), 18 Holstein cows in mid to late lactation were injected intramuscularly twice daily with either 0.5 mg of quinagolide (QN) or 2 mL of water (control) for 2 wk (d 1 to 14; treatment period). After the treatment period, all cows received daily subcutaneous injections of 300 mg of domperidone (DOMP) for 3 wk (d 15 to 35; DOMP period)...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29331171/the-genotypic-and-phenotypic-spectrum-of-mto1-deficiency
#17
James J O'Byrne, Maja Tarailo-Graovac, Aisha Ghani, Michael Champion, Charu Deshpande, Ali Dursun, Riza K Ozgul, Peter Freisinger, Ian Garber, Tobias B Haack, Rita Horvath, Ivo Barić, Ralf A Husain, Leo A J Kluijtmans, Urania Kotzaeridou, Andrew A Morris, Colin J Ross, Saikat Santra, Jan Smeitink, Mark Tarnopolsky, Saskia B Wortmann, Johannes A Mayr, Michaela Brunner-Krainz, Holger Prokisch, Wyeth W Wasserman, Ron A Wevers, Udo F Engelke, Richard J Rodenburg, Teck Wah Ting, Robert McFarland, Robert W Taylor, Ramona Salvarinova, Clara D M van Karnebeek
BACKGROUND: Mitochondrial diseases, a group of multi-systemic disorders often characterized by tissue-specific phenotypes, are usually progressive and fatal disorders resulting from defects in oxidative phosphorylation. MTO1 (Mitochondrial tRNA Translation Optimization 1), an evolutionarily conserved protein expressed in high-energy demand tissues has been linked to human early-onset combined oxidative phosphorylation deficiency associated with hypertrophic cardiomyopathy, often referred to as combined oxidative phosphorylation deficiency-10 (COXPD10)...
January 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29329700/-a-listeria-breast-abscess-in-a-man
#18
E Marsaudon, J Berthy, S Mamoune, A Deniel, S Ksiyer, D Tiuca
INTRODUCTION: Listeriosis is a food-borne illness leading to bacteriemia or central nervous system infection especially in pregnant women or high-risk patients. It is rarely a localized infection. Breast contamination has rarely been reported in lactating women. We report a breast abscess in man. CASE REPORT: A 80 year old man, hypertensive and arrhythmic, was explored for weakness and dehydration. Type 2 diabetes and chronic lymphocytic leukemia were diagnosed...
January 9, 2018: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29327380/effects-of-deficiency-and-surplus-dietary-threonine-on-reproductive-performance-of-primiparous-pregnant-gilts
#19
M Shi, T Liu, T Li, H Wang, T Yuan, D Li, J Wang
Dietary threonine imbalance is known to impair reproductive performances of gestating sows, but the underlying mechanisms are largely unknown. In this study, effects of deficiency and surplus dietary threonine during gestation on reproductive performance, serum metabolites and hormones concentration, and colostral nutrient and immunoglobulin contents of primiparous sows were investigated. Ninety primiparous pregnant gilts were assigned to one of the three dietary treatments with different standardized ileal digestible threonine/lysine ratios at 0...
January 11, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29325971/incorporation-of-fetal-and-child-pfoa-dosimetry-in-the-derivation-of-health-based-toxicity-values
#20
Kyra Kimberly Kieskamp, Rachel Rogers Worley, Eva D McLanahan, Marc-André Verner
BACKGROUND: Multiple agencies have developed health-based toxicity values for exposure to perfluorooctanoic acid (PFOA). Although PFOA exposure occurs in utero and through breastfeeding, current health-based toxicity values have not been derived using fetal or child dosimetry. Therefore, current values may underestimate the potential risks to fetuses and nursing infants. OBJECTIVE: Using fetal and child dosimetry, we aimed to calculate PFOA maternal human equivalent doses (HEDs), corresponding to a developmental mouse study lowest observed adverse effect level (LOAEL, 1mg/kg/day)...
December 23, 2017: Environment International
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