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https://www.readbyqxmd.com/read/28107464/seed-detection-and-discrimination-by-ground-beetles-coleoptera-carabidae-are-associated-with-olfactory-cues
#1
Sharavari S Kulkarni, Lloyd M Dosdall, John R Spence, Christian J Willenborg
Olfactory ability is an element of fitness in many animals, guiding choices among alternatives such as mating partners or food. Ground beetles (Coleoptera; Carabidae), exhibit preferences for prey, and some species are well-known weed seed predators. We used olfactometer-based bioassays to determine if olfactory stimuli are associated with detection of Brassica napus L., Sinapis arvensis L., and Thlaspi arvense L. seeds by ground beetles characteristic of agroecosystems, and whether behavioural responses to seed odors depended on seed physiological state (imbibed or unimbibed)...
2017: PloS One
https://www.readbyqxmd.com/read/28107363/age-dependent-neuroendocrine-signaling-from-sensory-neurons-modulates-the-effect-of-dietary-restriction-on-longevity-of-caenorhabditis-elegans
#2
Marissa Fletcher, Dennis H Kim
Dietary restriction extends lifespan in evolutionarily diverse animals. A role for the sensory nervous system in dietary restriction has been established in Drosophila and Caenorhabditis elegans, but little is known about how neuroendocrine signals influence the effects of dietary restriction on longevity. Here, we show that DAF-7/TGFβ, which is secreted from the C. elegans amphid, promotes lifespan extension in response to dietary restriction in C. elegans. DAF-7 produced by the ASI pair of sensory neurons acts on DAF-1/TGFβ receptors expressed on interneurons to inhibit the co-SMAD DAF-3...
January 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28106733/high-prevalence-of-vitamin-b12-deficiency-and-no-folate-deficiency-in-young-children-in-nepal
#3
Bernadette N Ng'eno, Cria G Perrine, Ralph D Whitehead, Giri Raj Subedi, Saba Mebrahtu, Pradiumna Dahal, Maria Elena D Jefferds
Many children in low- and middle-income countries may have inadequate intake of vitamin B12 and folate; data confirming these inadequacies are limited. We used biochemical, demographic, behavioral and anthropometric data to describe the folate and vitamin B12 concentrations among six- to 23-month-old Nepalese children. Vitamin B12 (serum B12 < 150 pmol/L) and folate deficiencies (red blood cell (RBC) folate < 226.5 nmol/L) were assessed. We used logistic regression to identify predictors of vitamin B12 deficiency...
January 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28105916/gpcrs-from-fusarium-graminearum-detection-modeling-and-virtual-screening-the-search-for-new-routes-to-control-head-blight-disease
#4
Emmanuel Bresso, Roberto Togawa, Kim Hammond-Kosack, Martin Urban, Bernard Maigret, Natalia Florencio Martins
BACKGOUND: Fusarium graminearum (FG) is one of the major cereal infecting pathogens causing high economic losses worldwide and resulting in adverse effects on human and animal health. Therefore, the development of new fungicides against FG is an important issue to reduce cereal infection and economic impact. In the strategy for developing new fungicides, a critical step is the identification of new targets against which innovative chemicals weapons can be designed. As several G-protein coupled receptors (GPCRs) are implicated in signaling pathways critical for the fungi development and survival, such proteins could be valuable efficient targets to reduce Fusarium growth and therefore to prevent food contamination...
December 15, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28105720/primates-on-display-potential-disease-consequences-beyond-bushmeat
#5
Michael P Muehlenbein
Human interactions with nonhuman primates vary tremendously, from daily cultural engagements and food commodities, to pet ownership and tourist encounters. These interactions provide opportunities for the exchange of pathogenic organisms (both zoonoses and anthroponoses). As exposures are not limited to areas where bushmeat usage continues to be a major problem, we must work to understand better our motivations for engaging in activities like owning primates as pets and having direct physical contact with wild primates within the context of nature-based tourism...
January 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28103104/characterization-and-molecular-subtyping-of-shiga-toxin-producing-escherichia-coli-strains-in-butcher-shops
#6
Victoria Brusa, Magdalena Costa, Alejandra Londero, Gerardo A Leotta, Lucía Galli
Shiga toxin-producing Escherichia coli (STEC) are important emerging foodborne human pathogens. Ruminants are the main animal reservoir of STEC currently known, and meat can become contaminated at different stages of the production chain. The aim of this work was to subtype and establish the epidemiological relatedness of non-O157 STEC strains isolated from ground beef and the environment in butcher shops before (evaluation stage, 2010-2011 period) and after (verification stage, 2013) implementing improvement actions...
January 19, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28102354/a-signature-of-renal-stress-resistance-induced-by-short-term-dietary-restriction-fasting-and-protein-restriction
#7
F Jongbloed, T C Saat, M Verweij, C Payan-Gomez, J H J Hoeijmakers, S van den Engel, C T van Oostrom, G Ambagtsheer, S Imholz, J L A Pennings, H van Steeg, J N M IJzermans, M E T Dollé, R W F de Bruin
During kidney transplantation, ischemia-reperfusion injury (IRI) induces oxidative stress. Short-term preoperative 30% dietary restriction (DR) and 3-day fasting protect against renal IRI. We investigated the contribution of macronutrients to this protection on both phenotypical and transcriptional levels. Male C57BL/6 mice were fed control food ad libitum, underwent two weeks of 30%DR, 3-day fasting, or received a protein-, carbohydrate- or fat-free diet for various periods of time. After completion of each diet, renal gene expression was investigated using microarrays...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102207/drosophila-fit-is-a-protein-specific-satiety-hormone-essential-for-feeding-control
#8
Jinghan Sun, Chang Liu, Xiaobing Bai, Xiaoting Li, Jingyun Li, Zhiping Zhang, Yunpeng Zhang, Jing Guo, Yan Li
Protein homeostasis is critical for health and lifespan of animals. However, the mechanisms for controlling protein feeding remain poorly understood. Here we report that in Drosophila, protein intake-induced feeding inhibition (PIFI) is specific to protein-containing food, and this effect is mediated by a fat body (FB) peptide named female-specific independent of transformer (FIT). Upon consumption of protein food, FIT expression is greatly elevated. Secreted FIT peptide in the fly haemolymph conveys this metabolic message to the brain, thereby promoting the release of Drosophila insulin-like peptide 2 (DILP2) and suppressing further protein intake...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102080/n-oleoylglycine-induced-hyperphagia-was-associated-with-the-activation-of-agrp-neuron-by-cb1r
#9
Junguo Wu, Canjun Zhu, Liusong Yang, Zhonggang Wang, Lina Wang, Songbo Wang, Ping Gao, Yongliang Zhang, Qingyan Jiang, Gang Shu, Xiaotong Zhu
N-acyl amino acids (NAAAs) are conjugate products of fatty acids and amino acids, which are available in animal-derived food. We compared the effects of N-arachidonoyl glycine (NAGly), N-arachidonoyl serine (NASer), and N-Oleoylglycine (OLGly) on in vivo food intake and in vitro [Ca2+]i of AgRP neurons to identify the role of these compounds in energy homeostasis. The hypothalamic neuropeptide expression and anxiety behavior in response to OLGly were also tested. To further identify the underlying mechanism of OLGly on food intake, we first detected the expression level of potential OLGly receptors...
January 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28101957/summer-co-existence-of-small-sized-cyprinid-and-percid-individuals-in-natural-and-impounded-stretches-of-a-lowland-river-food-niche-partitioning-among-fishes
#10
J Lik, M Dukowska, M Grzybkowska, J Leszczyńska
Due to changes of discharge regime downstream of a dam reservoir, an alluvial natural stretch of the Warta River changed to a macrophyte-dominated ecosystem. Large patches of submersed, aquatic macrophytes appeared in summer and their effect is analysed in this study. These patches contained enriched macroinvertebrate assemblages (epiphyton and benthos) and they were refuge for both zooplankton and young fishes released from the reservoir. Despite these altered conditions in this stretch, roach Rutilus rutilus, perch Perca fluviatilis and ruffe Gymnocephalus cernua dominated, as they did in the natural backwater...
January 18, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28101699/humanity-at-the-edge-the-moral-laboratory-of-feeding-precarious-lives
#11
Mette N Svendsen, Iben M Gjødsbøl, Mie S Dam, Laura E Navne
At the heart of anthropology and the social sciences lies a notion of human existence according to which humans and animals share the basic need for food, but only humans have the capacity for morality. Based on fieldwork in a pig laboratory, a neonatal intensive care unit (NICU), and a dementia nursing home, we follow practices of feeding precarious lives lacking most markers of human personhood, including the exercise of moral judgment. Despite the absence of such markers, laboratory researchers and caregivers in these three sites do not abstain from engaging in questions about the moral status of the piglets, infants, and people with dementia in their care...
January 18, 2017: Culture, Medicine and Psychiatry
https://www.readbyqxmd.com/read/28101322/brexpiprazole-and-cariprazine-distinguishing-two-new-atypical-antipsychotics-from-the-original-dopamine-stabilizer-aripiprazole
#12
REVIEW
Joshua S Frankel, Thomas L Schwartz
BACKGROUND: Brexpiprazole and cariprazine are the latest US Food and Drug Administration approved atypical antipsychotics available in the United States. Both function as partial agonists of the dopamine-2 receptor (D2R), a mechanism of action shared with aripiprazole. However, all three differ in their affinities for the D2R as well as for serotonin receptors (5-HTRs). This paper seeks to delineate these pharmacodynamic and clinical differences amongst the three dopamine partial agonist atypical antipsychotic drugs...
January 2017: Therapeutic Advances in Psychopharmacology
https://www.readbyqxmd.com/read/28100806/the-lateral-line-confers-evolutionarily-derived-sleep-loss-in-the-mexican-cavefish
#13
James Jaggard, Beatriz G Robinson, Bethany A Stahl, Ian Oh, Pavel Masek, Masato Yoshizawa, Alex C Keene
Sleep is an essential behavior exhibited by nearly all animals, and disruption of this process is associated with an array of physiological and behavioral deficits. Sleep is defined by changes in sensory gating that reduce sensory input to the brain, but little is known about the neural basis for interactions between sleep and sensory processing. Blind Mexican cavefish comprise an extant surface dwelling form and 29 cave morphs that have independently evolved increased numbers of mechanoreceptive lateral line neuromasts and convergent evolution of sleep loss...
January 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28100803/a-new-cue-for-torpor-induction-charcoal-ash-and-smoke
#14
Clare Stawski, Julia Nowack, Gerhard Körtner, Fritz Geiser
Recent work has shown that the use of torpor for energy conservation increases after forest fires in heterothermic mammals, probably in response to the reduction of food. However, the specific environmental cues for this increased torpor expression remain unknown. It is possible that smoke and the novel substrate of charcoal and ash act as signals for an impending period of starvation requiring torpor. We therefore tested the hypothesis that the combined cues of smoke, a charcoal/ash substrate and food shortage will enhance torpor expression in a small forest-dwelling marsupial, the yellow-footed antechinus (Antechinus flavipes), because like other animals that live in fire-prone habitats they must effectively respond to fires to ensure survival...
January 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28098752/microbiological-load-of-edible-insects-found-in-belgium
#15
Rudy Caparros Megido, Sandrine Desmedt, Christophe Blecker, François Béra, Éric Haubruge, Taofic Alabi, Frédéric Francis
Edible insects are gaining more and more attention as a sustainable source of animal protein for food and feed in the future. In Belgium, some insect products can be found on the market, and consumers are sourcing fresh insects from fishing stores or towards traditional markets to find exotic insects that are illegal and not sanitarily controlled. From this perspective, this study aims to characterize the microbial load of edible insects found in Belgium (i.e., fresh mealworms and house crickets from European farms and smoked termites and caterpillars from a traditional Congolese market) and to evaluate the efficiency of different processing methods (blanching for all species and freeze-drying and sterilization for European species) in reducing microorganism counts...
January 13, 2017: Insects
https://www.readbyqxmd.com/read/28097684/feeding-asian-pangolins-an-assessment-of-current-diets-fed-in-institutions-worldwide
#16
Francis Cabana, Amy Plowman, Thai Van Nguyen, Shih-Chien Chin, Sung-Lin Wu, Hsuan-Yi Lo, Hirofumi Watabe, Fujio Yamamoto
Pangolins are ant specialists which are under intense threat from the illegal wildlife trade. Nutrition has notoriously been their downfall in captivity and is still an issue in regards to rescue and rehabilitation. We analyzed the nutrient content of diets used by institutions that are successfully keeping Asian pangolins and to assess the variety of the ingredients and nutrients, compared these with the nutritional requirements of potential nutritional model species. We performed intake studies at five institutions and also had data from three other institutions...
January 18, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28096496/a-reminder-of-extinction-reduces-relapse-in-an-animal-model-of-voluntary-behavior
#17
Javier Nieto, Metin Uengoer, Rodolfo Bernal-Gamboa
One experiment with rats explored whether an extinction-cue prevents the recovery of extinguished lever-pressing responses. Initially, rats were trained to perform one instrumental response (R1) for food in Context A, and a different instrumental response (R2) in Context B. Then, responses were extinguished each in the alternate context (R1 in Context B; R2 in Context A). For one group, extinction of both responses was conducted in the presence of an extinction-cue, whereas in a second group, the extinction-cue only accompanied extinction of R1...
February 2017: Learning & Memory
https://www.readbyqxmd.com/read/28095756/low-dose-acute-vanillin-is-beneficial-against-harmaline-induced-tremors-in-rats
#18
Al Asmari Abdulrahman, Kunnathodi Faisal, Ali Al Amri Meshref, Mohammed Arshaduddin
OBJECTIVE: To study the effect of pretreatment with low doses of vanillin, a flavoring agent used as a food additive, on harmaline-induced tremor in rats. METHODS: Sprague Dawley rats (110 ± 5 g) were divided into groups of six animals each. Vanillin (6.25 mg, 12.5 mg, and 25 mg/kg) was administered by gavage to different groups of rats, 30 minutes before the induction of tremor. Harmaline (10 mg/kg, i.p.) was used for the induction of tremor. The latency of onset, duration, tremor intensity, tremor index, and spontaneous locomotor activity were recorded...
January 18, 2017: Neurological Research
https://www.readbyqxmd.com/read/28095599/minerals-in-the-foods-and-diet-of-diademed-sifakas-are-they-nutritional-challenges
#19
Mitchell T Irwin, Jean-Luc Raharison, Colin A Chapman, Randall E Junge, Jessica M Rothman
: Minerals, though needed in small quantities, are essential to metabolic processes, and deficiencies can seriously threaten health, reproduction and survival. Despite this, few studies have measured mineral composition of wild primate foods and fewer have quantified mineral intake. Here we measured the concentration of nine minerals in 75 foods of diademed sifakas (Propithecus diadema; five groups) in habitats with varying levels of disturbance at Tsinjoarivo and estimated daily intakes using focal-animal feeding data and intake rates over one year...
January 17, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28095274/protein-intake-and-breast-cancer-survival-in-the-nurses-health-study
#20
Michelle D Holmes, Jun Wang, Susan E Hankinson, Rulla M Tamimi, Wendy E Chen
Purpose Greater protein intake has been associated with better breast cancer survival in several prospective studies, including among 1,982 women in the Nurses' Health Study. We proposed to extend this previous finding. We hypothesized that protein, essential amino acid, branched-chain amino acid, and leucine intakes are associated with improved survival and that these associations are stronger in tumors expressing insulin receptor (IR). Patients and Methods We included 6,348 women diagnosed with stage I to III breast cancer between 1976 and 2004...
January 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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