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https://www.readbyqxmd.com/read/28525347/sustainable-farming-of-the-mealworm-tenebrio-molitor-for-the-production-of-food-and-feed
#1
Thorben Grau, Andreas Vilcinskas, Gerrit Joop
The farming of edible insects is an alternative strategy for the production of protein-rich food and feed with a low ecological footprint. The industrial production of insect-derived protein is more cost-effective and energy-efficient than livestock farming or aquaculture. The mealworm Tenebrio molitor is economically among the most important species used for the large-scale conversion of plant biomass into protein. Here, we review the mass rearing of this species and its conversion into food and feed, focusing on challenges such as the contamination of food/feed products with bacteria from the insect gut and the risk of rapidly spreading pathogens and parasites...
May 17, 2017: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/28524769/machine-learning-for-epigenetics-and-future-medical-applications
#2
Lawrence B Holder, M Muksitul Haque, Michael K Skinner
Understanding epigenetic processes holds immense promise for medical applications. Advances in Machine Learning (ML) are critical to realize this promise. Previous studies used epigenetic data sets associated with the germline transmission of epigenetic transgenerational inheritance of disease and novel ML approaches to predict genome-wide locations of critical epimutations. A combination of Active Learning (ACL) and Imbalanced Class Learning (ICL) was used to address past problems with ML to develop a more efficient feature selection process and address the imbalance problem in all genomic data sets...
May 19, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28523009/transgenerational-defense-priming-for-crop-protection-against-plant-pathogens-a-hypothesis
#3
Gabriela Ramírez-Carrasco, Keren Martínez-Aguilar, Raúl Alvarez-Venegas
Throughout evolution, plants have developed diverse mechanisms of defense that "prime" their innate immune system for more robust and active induction of defense responses against different types of stress. Nowadays there are numerous reports concerning the molecular bases of priming, as well as the generational priming mechanisms. Information concerning transgenerational priming, however, remains deficient. Some reports have indicated, nonetheless, that the priming status of a plant can be inherited to its offspring...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28521626/experimental-evolution-of-resistance-against-bacillus-thuringiensis-in-the-insect-model-host-galleria-mellonella-results-in-epigenetic-modifications
#4
Krishnendu Mukherjee, Ekaterina Grizanova, Ekaterina Chertkova, Ruediger Lehmann, Ivan Dubovskiy, Andreas Vilcinskas
Epigenetic mechanisms have been proposed to translate environmental stimuli into heritable transgenerational phenotypic variations that can significantly influence natural selection. An intriguing example is exposure to pathogens, which imposes selection for host resistance. To test this hypothesis, we used larvae of the greater wax moth Galleria mellonella as model host to experimentally select for resistance to Bacillus thuringiensis (Bt), the most widely used bacterial agent for the biological control of pest insects...
May 19, 2017: Virulence
https://www.readbyqxmd.com/read/28517968/a-community-based-qualitative-study-of-intergenerational-resilience-with-palestinian-refugee-families-facing-structural-violence-and-historical-trauma
#5
Devin G Atallah
The purpose of this study was to explore resilience processes in Palestinian refugee families living under Israeli occupation for multiple generations. Qualitative methods, critical postcolonial theories, and community-based research approaches were used to examine intergenerational protective practices and to contribute to reconceptualizations of resilience from indigenous perspectives. First, the researcher developed a collaborative partnership with a nongovernmental organization (NGO) in a UN refugee camp in the occupied West Bank...
January 1, 2017: Transcultural Psychiatry
https://www.readbyqxmd.com/read/28515076/vertically-transmitted-symbionts-as-mechanisms-of-transgenerational-effects
#6
Pedro E Gundel, Jennifer A Rudgers, Kenneth D Whitney
PREMISE OF THE STUDY: A transgenerational effect occurs when a biotic or abiotic environmental factor acts on a parental individual and thereby affects the phenotype of progeny. Due to the importance of transgenerational effects for understanding plant ecology and evolution, their underlying mechanisms are of general interest. Here, we introduce the concept that inherited symbiotic microorganisms could act as mechanisms of transgenerational effects in plants. METHODS: We define the criteria required to demonstrate that transgenerational effects are microbially mediated and review evidence from the well-studied, vertically transmitted plant-fungal symbiosis (grass-Epichloë spp...
May 17, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28513351/mind-the-fathers-associations-of-parental-childhood-adversities-with-borderline-personality-disorder-pathology-in-female-adolescents
#7
Corinna Reichl, Romuald Brunner, Anna Fuchs, Birger Holz, Peter Parzer, Gloria Fischer-Waldschmidt, Franz Resch, Michael Kaess
Previous research revealed significant relations between the experience of childhood adversity (CA) and the development of borderline personality disorder (BPD) in adulthood. However, it is still uncertain whether parental CA could have a transgenerational association with adolescent BPD. We investigated associations between parents' CA (antipathy, neglect, physical abuse) and BPD traits within a clinical adolescent sample and tested for mediating variables. The sample consists of 91 female inpatients, along with 84 mothers and 59 fathers...
May 17, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28512301/maternal-antioxidant-provisioning-mitigates-pollutant-induced-oxidative-damage-in-embryos-of-the-temperate-sea-urchin-evechinus-chloroticus
#8
Kathryn N Lister, Miles D Lamare, David J Burritt
One mechanism of pollution resistance in marine populations is through transgenerational plasticity, whereby offspring capacity to resist pollution reflects parental exposure history. Our study aimed to establish correlations between oxidative stress biomarkers and key reproductive fitness parameters in the temperate sea urchin Evechinus chloroticus following exposure to dietary polycyclic aromatic hydrocarbons (PAHs). PAH-exposed adults exhibited total gonad tissue concentrations of PAHs in excess of 4 and 5 times baseline levels, for females and males respectively...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28509908/microbial-contributions-to-the-persistence-of-coral-reefs
#9
Nicole S Webster, Thorsten B H Reusch
On contemplating the adaptive capacity of reef organisms to a rapidly changing environment, the microbiome offers significant and greatly unrecognised potential. Microbial symbionts contribute to the physiology, development, immunity and behaviour of their hosts, and can respond very rapidly to changing environmental conditions, providing a powerful mechanism for acclimatisation and also possibly rapid evolution of coral reef holobionts. Environmentally acquired fluctuations in the microbiome can have significant functional consequences for the holobiont phenotype upon which selection can act...
May 16, 2017: ISME Journal
https://www.readbyqxmd.com/read/28505032/do-preventive-interventions-for-children-of-mentally-ill-parents-work-results-of-a-systematic-review-and-meta-analysis
#10
Martina Thanhäuser, Gunnar Lemmer, Giovanni de Girolamo, Hanna Christiansen
PURPOSE OF REVIEW: The transgenerational transmission of mental disorders is one of the most significant causes of psychiatric morbidity. Several risk factors for children of parents with mental illness (COPMI) have been identified in numerous studies and meta-analyses. RECENT FINDINGS: Many interventions have been developed for this high-risk group, but data about their efficacy are heterogeneous. SUMMARY: The current meta-analysis reports on 95 articles including 50 independent samples from randomized controlled trials quantifying effects of preventive interventions for COPMI...
May 12, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28500249/maternal-high-fat-diet-induces-metabolic-stress-response-disorders-in-offspring-hypothalamus
#11
Long The Nguyen, Sonia Saad, Yi Tan, Carol Pollock, Hui Chen
Maternal obesity has been shown to increase the risk of obesity and related disorders in the offspring, which has been partially attributed to changes of appetite regulators in the offspring hypothalamus. On the other hand, endoplasmic reticulum (ER) stress and autophagy have been implicated in hypothalamic neuropeptide dysregulation, thus may also play important roles in such transgenerational effect.  In this study, we show that offspring born to HFD-fed dams showed significantly increased body weight and glucose intolerance, adiposity and plasma triglyceride level at weaning...
May 12, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28495853/transgenerational-transmission-of-asthma-risk-after-exposure-to-environmental-particles-during-pregnancy
#12
David J Gregory, Lester Kobzik, Zhiping Yang, Connor C McGuire, Alexey V Fedulov
Exposure to environmental particles during pregnancy increases asthma susceptibility of the offspring. We tested the hypothesis that this transmission continues to F2 and F3 generations and occurs via epigenetic mechanisms. We compared allergic susceptibility of three generations of BALB/c offspring after a single maternal exposure during pregnancy to diesel exhaust particles or concentrated urban air particles. After pregnant dams received intranasal instillations of particle suspensions or control, their F1, F2 and F3 offspring were tested in a low-dose ovalbumin protocol for allergy sensitivity...
May 11, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28487656/adolescent-female-cannabinoid-exposure-diminishes-the-reward-facilitating-effects-of-%C3%AE-9-tetrahydrocannabinol-and-d-amphetamine-in-the-adult-male-offspring
#13
George Pitsilis, Dimitrios Spyridakos, George G Nomikos, George Panagis
Marijuana is currently the most commonly abused illicit drug. According to recent studies, cannabinoid use occurring prior to pregnancy can impact brain plasticity and behavior in future generations. The purpose of the present study was to determine whether adolescent exposure of female rats to Δ(9)-tetrahydrocannabinol (Δ(9)-THC) induces transgenerational effects on the reward-facilitating effects of Δ(9)-THC and d-amphetamine in their adult male offspring. Female Sprague-Dawley rats received Δ(9)-THC (0...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28484595/fetal-and-neonatal-programming-of-postnatal-growth-and-feed-efficiency-in-swine
#14
REVIEW
Yun Ji, Zhenlong Wu, Zhaolai Dai, Xiaolong Wang, Ju Li, Binggen Wang, Guoyao Wu
Maternal undernutrition or overnutrition during pregnancy alters organ structure, impairs prenatal and neonatal growth and development, and reduces feed efficiency for lean tissue gains in pigs. These adverse effects may be carried over to the next generation or beyond. This phenomenon of the transgenerational impacts is known as fetal programming, which is mediated by stable and heritable alterations of gene expression through covalent modifications of DNA and histones without changes in DNA sequences (namely, epigenetics)...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28484469/long-term-overgrazing-induced-memory-decreases-photosynthesis-of-clonal-offspring-in-a-perennial-grassland-plant
#15
Weibo Ren, Ningning Hu, Xiangyang Hou, Jize Zhang, Huiqin Guo, Zhiying Liu, Lingqi Kong, Zinian Wu, Hui Wang, Xiliang Li
Previous studies of transgenerational plasticity have demonstrated that long-term overgrazing experienced by Leymus chinensis, an ecologically dominant, rhizomatous grass species in eastern Eurasian temperate grassland, significantly affects its clonal growth in subsequent generations. However, there is a dearth of information on the reasons underlying this overgrazing-induced memory effect in plant morphological plasticity. We characterized the relationship between a dwarf phenotype and photosynthesis function decline of L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28484240/paternal-spatial-training-enhances-offspring-s-cognitive-performance-and-synaptic-plasticity-in-wild-type-but-not-improve-memory-deficit-in-alzheimer-s-mice
#16
Shujuan Zhang, Xiaoguang Li, Zhouyi Wang, Yanchao Liu, Yuan Gao, Lu Tan, Enjie Liu, Qiuzhi Zhou, Cheng Xu, Xin Wang, Gongping Liu, Haote Chen, Jian-Zhi Wang
Recent studies suggest that spatial training can maintain associative memory capacity in Tg2576 mice, but it is not known whether the beneficial effects can be inherited from the trained fathers to their offspring. Here, we exposed male wild-type and male 3XTg Alzheimer disease (AD) mice (3-m old) respectively to spatial training for one week and assessed the transgenerational effects in the F1 offspring when they were grown to 7-m old. We found that the paternal spatial training significantly enhanced progeny's spatial cognitive performance and synaptic transmission in wild-type mice...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28479992/pathogen-induced-maternal-effects-result-in-enhanced-immune-responsiveness-across-generations
#17
Rebeca B Rosengaus, Nicole Hays, Colette Biro, James Kemos, Muizz Zaman, Joseph Murray, Bruck Gezahegn, Wendy Smith
Parental investment theory postulates that adults can accurately perceive cues from their surroundings, anticipate the needs of future offspring based on those cues, and selectively allocate nongenetic resources to their progeny. Such context-dependent parental contributions can result in phenotypically variable offspring. Consistent with these predictions, we show that bacterially exposed Manduca sexta mothers oviposited significantly more variable embryos (as measured by mass, volume, hatching time, and hatching success) relative to naïve and control mothers...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28472380/small-rnas-reflect-grandparental-environments-in-apomictic-dandelion
#18
Lionel Morgado, Veronica Preite, Carla Oplaat, Sarit Anava, Julie Ferreira de Carvalho, Oded Rechavi, Frank Johannes, Koen J F Verhoeven
Plants can show long-term effects of environmental stresses and in some cases a stress 'memory' has been reported to persist across generations, potentially mediated by epigenetic mechanisms. However, few documented cases exist of transgenerational effects that persist for multiple generations and it remains unclear if or how epigenetic mechanisms are involved. Here we show that the composition of small regulatory RNAs in apomictic dandelion lineages reveals a footprint of drought stress and salicylic acid treatment experienced two generations ago...
May 4, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28464002/mercury-induced-epigenetic-transgenerational-inheritance-of-abnormal-neurobehavior-is-correlated-with-sperm-epimutations-in-zebrafish
#19
Michael J Carvan, Thomas A Kalluvila, Rebekah H Klingler, Jeremy K Larson, Matthew Pickens, Francisco X Mora-Zamorano, Victoria P Connaughton, Ingrid Sadler-Riggleman, Daniel Beck, Michael K Skinner
Methylmercury (MeHg) is a ubiquitous environmental neurotoxicant, with human exposures predominantly resulting from fish consumption. Developmental exposure of zebrafish to MeHg is known to alter their neurobehavior. The current study investigated the direct exposure and transgenerational effects of MeHg, at tissue doses similar to those detected in exposed human populations, on sperm epimutations (i.e., differential DNA methylation regions [DMRs]) and neurobehavior (i.e., visual startle and spontaneous locomotion) in zebrafish, an established human health model...
2017: PloS One
https://www.readbyqxmd.com/read/28463242/exercise-alters-mouse-sperm-small-noncoding-rnas-and-induces-a-transgenerational-modification-of-male-offspring-conditioned-fear-and-anxiety
#20
A K Short, S Yeshurun, R Powell, V M Perreau, A Fox, J H Kim, T Y Pang, A J Hannan
There is growing evidence that the preconceptual lifestyle and other environmental exposures of a father can significantly alter the physiological and behavioral phenotypes of their children. We and others have shown that paternal preconception stress, regardless of whether the stress was experienced during early-life or adulthood, results in offspring with altered anxiety and depression-related behaviors, attributed to hypothalamic-pituitary-adrenal axis dysregulation. The transgenerational response to paternal preconceptual stress is believed to be mediated by sperm-borne small noncoding RNAs, specifically microRNAs...
May 2, 2017: Translational Psychiatry
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