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https://www.readbyqxmd.com/read/28728385/effects-of-dietary-energy-sources-on-early-postmortem-muscle-metabolism-of-finishing-pigs
#1
Yanjiao Li, Changning Yu, Jiaolong Li, Lin Zhang, Feng Gao, Guanghong Zhou
Objective: This study investigated the effects of different dietary energy sources on early postmortem muscle metabolism of finishing pigs. Methods: Seventy-two barrow (Duroc × Landrace × Yorkshire, DLY) pigs (65.0 ± 2.0 kg) were allotted to three iso-energetic and iso-nitrogenous diets: A (44.1% starch, 5.9% crude fat and 12.6% neutral detergent fibre (NDF)), B (37.6% starch, 9.5% crude fat and 15.4% NDF) or C (30.9% starch, 14.3% crude fat and 17.8% NDF). After the duration of 28-day feeding experiment, 24 pigs (eight per treatment) were slaughtered and the M...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728384/analysis-of-low-marbled-hanwoo-cow-meat-aged-with-different-dry-aging-methods
#2
Hyun Jung Lee, Ju-Hui Choe, Kwan Tae Kim, Jungmin Oh, Da Gyeom Lee, Ki Moon Kwon, Yang Il Choi, Cheorun Jo
Objective: Different dry-aging methods [traditional dry-aging (TD), simplified dry-aging (SD), and SD in an aging bag (SDB)] were compared to investigate the possible use of SD and/or SDB in practical situations. Methods: Sirloins from 48 Hanwoo cows were frozen (Control, 2 days postmortem) or dry-aged for 28 days using the different aging methods and then analyzed for chemical composition, total aerobic bacteria count, shear force, inosine 5'-monophosphate (IMP) and free amino acid content, and sensory properties...
June 26, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728072/postmortem-diagnosis-of-sepsis-a-preliminary-immunohistochemical-study-with-an-anti-procalcitonin-antibody
#3
Aniello Maiese, Franca Del Nonno, Marco Dell'Aquila, Mario Moauro, Andrea Baiocchini, Antonio Mastracchio, Giorgio Bolino
No abstract text is available yet for this article.
July 13, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28728057/integrating-the-microbiome-as-a-resource-in-the-forensics-toolkit
#4
Thomas H Clarke, Andres Gomez, Harinder Singh, Karen E Nelson, Lauren M Brinkac
The introduction of DNA fingerprinting to forensic science rapidly expanded the available evidence that could be garnered from a crime scene and used in court cases. Next generation sequencing technologies increased available genetic data that could be used as evidence by orders of magnitude, and as such, significant additional genetic information is now available for use in forensic science. This includes DNA from the bacteria that live in and on humans, known as the human microbiome. Next generation sequencing of the human microbiome demonstrates that its bacterial DNA can be used to uniquely identify an individual, provide information about their life and behavioral patterns, determine the body site where a sample came from, and estimate postmortem intervals...
June 27, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28727969/fetal-dysmorphology-still-an-essential-art-analysis-of-the-limitations-of-microarray-in-a-fetal-population-and-a-look-toward-the-genome-sequencing-era
#5
E Fletcher, M Porteous, K J McKenzie, E J Maher, M J Evans
Cytogenomic microarray allows assessment of the genome at higher resolutions than traditional karyotyping. The objective of this study is to evaluate the utility of microarray in a routine fetal autopsy setting before the advent of routine fetal exome/genome sequencing and the issues these technologies may generate. A systematic review of fetal postmortems at 12-24 weeks gestation between January 2011 and December 2014 was undertaken. Cases where there was no consent for audit, research, or genetic testing were excluded as were cases referred to the Procurator Fiscal, stillbirths, and neonatal deaths...
July 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28727089/the-use-of-oxidative-stress-biomarkers-in-live-animals-in-vivo-to-predict-meat-quality-deterioration-postmortem-in-vitro-caused-by-changes-in-muscle-biochemical-components
#6
E N Ponnampalam, D L Hopkins, K Giri, J L Jacobs, T Plozza, P Lewandowski, A Bekhit
This study was conducted to determine whether circulating concentrations of blood isoprostanes can be used as an effective biomarker in lambs to predict degradation of color and/or lipid stability in meat. Lambs ( = 84) were fed diets of either lucerne pasture, annual ryegrass pasture, a commercial feedlot pellet, or a combination of annual ryegrass and feedlot pellet for 8 wk, including a 2-wk adaptation period. Blood isoprostane concentration at wk 0, 4, 6 or 8 of feeding was determined. Blood isoprostane concentration for each animal was then correlated with muscle biochemical components that impact color and/or lipid oxidative status during retail display...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727083/influence-of-feed-efficiency-classification-and-growing-and-finishing-diet-type-on-meat-tenderness-attributes-of-beef-steers
#7
C P Blank, J Russell, S M Lonergan, S L Hansen
Enhancing feed efficiency (FE) in cattle continues to be an important goal in the beef industry. Previous research suggests improving FE may alter calpain system activity, potentially having negative effects on meat tenderness. The objective of this study was to assess the potential influence of beef cattle FE on postmortem meat tenderness. During the growing phase, 181 crossbred steers were fed for 76 d at the University of Missouri on a whole shell corn-based diet (MU-Corn; = 90) or a roughage-based diet (MU-Rough; = 91)...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727041/proteomic-features-linked-to-tenderness-of-aged-pork-loins
#8
K B Carlson, K J Prusa, C A Fedler, E M Steadham, E Huff-Lonergan, S M Lonergan
There is considerable evidence that the protein component of fresh pork makes a major contribution to tenderness. In particular, the proteomic profile can be linked to postmortem events including pH decline, tissue oxidation, and protein degradation. The objectives for this study were to determine differences in sarcoplasmic proteomes that contribute to tenderness variation in aged pork longissimus dorsi muscles (LM). A defined set of pork loins selected to be similar in pH, color, and lipid yet different in tenderness were used...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28727036/supplementation-of-glycerol-or-fructose-via-drinking-water-to-grazing-lambs-on-tissue-glycogen-level-and-lipogenesis
#9
G Volpi-Lagreca, S K Duckett
Lambs ( = 18; 40.1 ± 7.4 kg BW) were used to assess supplementation of glycerol or fructose via drinking water on growth, tissue glycogen levels, postmortem glycolysis, and lipogenesis. Lambs were blocked by BW and allocated to alfalfa paddocks (2 lambs/paddock and 3 paddocks/treatment). Each paddock within a block was assigned randomly to drinking water treatments for 30 d: 1) control (CON), 2) 120 g fructose/L of drinking water (FRU), or 3) 120 g glycerol/L of drinking water (GLY). Lambs grazed alfalfa with free access to water treatments for 28 d and then were fasted in indoor pens for a final 2 d with access to only water treatments...
June 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726999/the-effects-of-instrumental-color-and-extractable-lipid-content-on-sensory-characteristics-of-pork-loin-chops-cooked-to-a-medium-rare-degree-of-doneness
#10
K B Wilson, M F Overholt, C M Shull, C Schwab, A C Dilger, D D Boler
Boneless loins ( = 286) were selected from a population of pigs of a common genetic line and management strategy to be used in an experiment to determine the effects of instrumental color and extractable lipid content on sensory traits of boneless pork chops cooked to an end point internal temperature of 63°C. Loins were cut into 2.54-cm-thick chops and aged until 14 d postmortem. Chop L* values ranged from 57.60 (light) to 43.11 (dark) and extractable lipid ranged from 0.80 to 5.52%. Using these values, chops were assigned to 5 color and 6 marbling categories using National Pork Producers Council (NPPC) standards, resulting in a 5 × 6 factorial arrangement of treatments...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28724388/o-glcnac-regulation-of-autophagy-and-%C3%AE-synuclein-homeostasis-implications-for-parkinson-s-disease
#11
Willayat Y Wani, Xiaosen Ouyang, Gloria A Benavides, Matthew Redmann, Stacey S Cofield, John J Shacka, John C Chatham, Victor Darley-Usmar, Jianhua Zhang
Post-translational modification on protein Ser/Thr residues by O-linked attachment of ß-N-acetyl-glucosamine (O-GlcNAcylation) is a key mechanism integrating redox signaling, metabolism and stress responses. One of the most common neurodegenerative diseases that exhibit aberrant redox signaling, metabolism and stress response is Parkinson's disease, suggesting a potential role for O-GlcNAcylation in its pathology. To determine whether abnormal O-GlcNAcylation occurs in Parkinson's disease, we analyzed lysates from the postmortem temporal cortex of Parkinson's disease patients and compared them to age matched controls and found increased protein O-GlcNAcylation levels...
July 19, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28722594/fatal-leptospira-spp-zika-virus-coinfection-puerto-rico-2016
#12
Paige Neaterour, Aidsa Rivera, Renee L Galloway, Myriam Garcia Negrón, Brenda Rivera-Garcia, Tyler M Sharp
Coinfection with pathogens that cause acute febrile illness (AFI) can complicate patient diagnosis and management. This report describes a fatal case of Leptospira spp./Zika virus (ZIKV) coinfection in Puerto Rico. The patient presented with a 5-day history of AFI; reported behavioral risk factors for leptospirosis; was diagnosed with possible leptospirosis, dengue, chikungunya, or ZIKV disease; and received appropriate treatment of leptospirosis and dengue. Following a 3-day hospitalization, the patient died due to acute gastrointestinal hemorrhage, and kidney and liver failure...
June 26, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28721468/are-animal-models-predictive-for-human-postmortem-muscle-protein-degradation
#13
Bianca Ehrenfellner, Angela Zissler, Peter Steinbacher, Fabio C Monticelli, Stefan Pittner
A most precise determination of the postmortem interval (PMI) is a crucial aspect in forensic casework. Although there are diverse approaches available to date, the high heterogeneity of cases together with the respective postmortal changes often limit the validity and sufficiency of many methods. Recently, a novel approach for time since death estimation by the analysis of postmortal changes of muscle proteins was proposed. It is however necessary to improve the reliability and accuracy, especially by analysis of possible influencing factors on protein degradation...
July 18, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28720718/phosphorylation-of-amyloid-precursor-protein-by-mutant-lrrk2-promotes-aicd-activity-and-neurotoxicity-in-parkinson-s-disease
#14
Zhong-Can Chen, Wei Zhang, Ling-Ling Chua, Chou Chai, Rong Li, Lin Lin, Zhen Cao, Dario C Angeles, Lawrence W Stanton, Jian-He Peng, Zhi-Dong Zhou, Kah-Leong Lim, Li Zeng, Eng-King Tan
Mutations in LRRK2, which encodes leucine-rich repeat kinase 2, are the most common genetic cause of familial and sporadic Parkinson's disease (PD), a degenerative disease of the central nervous system that causes impaired motor function and, in advanced stages, dementia. Dementia is a common symptom of another neurodegenerative disease, Alzheimer's disease, and research suggests that there may be pathophysiological and genetic links between the two diseases. Aggregates of β amyloid [a protein produced through cleavage of amyloid precursor protein (APP)] are seen in both diseases and in PD patients carrying G2019S-mutant LRRK2...
July 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28720530/downregulation-of-protein-phosphatase-2a-by-apolipoprotein-e-implications-for-alzheimer-s-disease
#15
Veena Theendakara, Dale E Bredesen, Rammohan V Rao
The apolipoprotein E ε4 allele is the single most important genetic risk factor associated with Alzheimer's disease (AD). Tau phosphorylation and hyperphosphorylation is an underlying feature of AD and is regulated by specific kinases and phosphatases. Among phosphatases, protein phosphatase 2A (PP2A) is the principal tau dephosphorylating enzyme in the brain. Several abnormalities of PP2A have been reported in AD, including among others decreased protein levels of PP2A, decreased mRNA and protein levels of the catalytic subunit PP2AC and variable regulatory B subunits and reduced methylation of the catalytic subunit, all of which results in disruption of the PP2A phosphatase activity...
July 15, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28719334/precisely-tracking-childhood-death
#16
Tamer H Farag, Jeffrey P Koplan, Robert F Breiman, Shabir A Madhi, Penny M Heaton, Trevor Mundel, Jaume Ordi, Quique Bassat, Clara Menendez, Scott F Dowell
Little is known about the specific causes of neonatal and under-five childhood death in high-mortality geographic regions due to a lack of primary data and dependence on inaccurate tools, such as verbal autopsy. To meet the ambitious new Sustainable Development Goal 3.2 to eliminate preventable child mortality in every country, better approaches are needed to precisely determine specific causes of death so that prevention and treatment interventions can be strengthened and focused. Minimally invasive tissue sampling (MITS) is a technique that uses needle-based postmortem sampling, followed by advanced histopathology and microbiology to definitely determine cause of death...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719018/ante-mortem-csf-tau-levels-correlate-with-post-mortem-tau-pathology-in-ftld
#17
D J Irwin, A Lleó, S X Xie, C T McMillan, D Wolk, E B Lee, V M Van Deerlin, L M Shaw, J Q Trojanowski, M Grossman
OBJECTIVE: To test the hypotheses that 1) antemortem cerebrospinal fluid tau levels correlate with postmortem tau pathology in frontotemporal lobar degeneration and 2) tauopathy patients have higher phosphorylated-tau levels compared to TDP-43 proteinopathy patients while accounting for Alzheimer's disease co-pathology. METHODS: Patients had autopsy-confirmed frontotemporal lobar degeneration with tauopathy (n=31), TDP-43 proteinopathy (n=49), or Alzheimer's disease (n=26) with antemortem cerebrospinal fluid...
July 18, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28718908/death-from-butane-inhalation-abuse-in-teenagers-two-new-case-studies-and-review-of-the-literature
#18
Véronique Alunni, Yvan Gaillard, François Castier, Marie-Dominique Piercecchi-Marti, Gérald Quatrehomme
The ready availability of butane makes butane abuse frequent. Fatalities are rare. This study presents two cases of death by butane overdose. The postmortem analyses were carried out using headspace gas chromatography-mass spectrometry. It revealed femoral blood butane concentrations of 18 and 22 mg/L, respectively, as well as specific combinations of adjuvants in each victim. In one of the victims, brain and fatty tissue also contained butane, pointing to chronic consumption. The originality of this study is to show that the identification of specific combinations of adjuvants can be helpful for identifying the brand of deodorant used...
July 18, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28716937/altered-metabotropic-glutamate-receptor-5-markers-in-ptsd-in-vivo-and-postmortem-evidence
#19
Sophie E Holmes, Matthew J Girgenti, Margaret T Davis, Robert H Pietrzak, Nicole DellaGioia, Nabeel Nabulsi, David Matuskey, Steven Southwick, Ronald S Duman, Richard E Carson, John H Krystal, Irina Esterlis
Posttraumatic stress disorder (PTSD) is a prevalent and highly disabling disorder, but there is currently no targeted pharmacological treatment for it. Dysfunction of the glutamate system has been implicated in trauma and stress psychopathology, resulting in a growing interest in modulation of the glutamate system for the treatment of PTSD. Specifically, the metabotropic glutamate receptor 5 (mGluR5) represents a promising treatment target. We used [(18)F]FPEB, a radioligand that binds to the mGluR5, and positron emission tomography (PET) to quantify in vivo mGluR5 availability in human PTSD vs...
July 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28713610/study-of-sexual-dimorphism-of-malaysian-crania-an-important-step-in-identification-of-the-skeletal-remains
#20
Abdelnasser Ibrahim, Aspalilah Alias, Faridah Mohd Nor, Mohamed Swarhib, Siti Noorain Abu Bakar, Srijit Das
Sex determination is one of the main steps in the identification of human skeletal remains. It constitutes an initial step in personal identification from the skeletal remains. The aim of the present study was to provide the population-specific sex discriminating osteometric standards to aid human identification. The present study was conducted on 87 (174 sides) slices of crania using postmortem computed tomography in 45 males and 42 females, aged between 18 and 75 years. About 22 parameters of crania were measured using Osirix software 3-D Volume Rendering...
June 2017: Anatomy & Cell Biology
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