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https://www.readbyqxmd.com/read/29235691/rna-interference-mediated-functional-characterization-of-aquaporin-genes-in-tribolium-castaneum
#1
X-X Yao, Q-W Meng, G-Q Li
An obvious challenge faced by most terrestrial insects is maintaining water homeostasis in an arid environment. Current research suggests aquaporins may be evolved to meet the challenge. However, up to now, this suggestion has not been verified in any insect that feeds upon solid food with mandibulate mouthparts. In the present paper, nine putative aquaporin genes [Tribolium castaneum big brain, T. castaneum Drosophila integral protein (TcDrip), T. castaneum Pyrocoelia rufa integral protein (TcPrip), T. castaneum aquaporin 12-like, T...
December 13, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/29230893/microbial-communities-exhibit-host-species-distinguishability-and-phylosymbiosis-along-the-length-of-the-gastrointestinal-tract
#2
Kevin D Kohl, Denise M Dearing, Seth R Bordenstein
Host-associated microbial communities consist of stable and transient members that can assemble through purely stochastic processes associated with the environment or by interactions with the host. Phylosymbiosis predicts that if host-microbiota interactions impact assembly patterns, then one conceivable outcome is concordance between host evolutionary histories (phylogeny) and the ecological similarities in microbial community structures (microbiota dendrogram). This assembly pattern has been demonstrated in several clades of animal hosts in laboratory and natural populations, but in vertebrates it has only been investigated using samples from feces or the distal colon...
December 11, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29224356/heating-and-soaking-influence-the-in-vitro-hindgut-fermentation-in-pigs-of-tropical-legume-grains
#3
Julieta Torres, Luz Munoz, Michael Peters, Carlos Montoya
The effect of different thermal (raw versus autoclaving or boiling for 5 and 20 min) and soaking (with or without) treatments on the in vitro hindgut fermentation in pigs of undigested residue collected after in vitro foregut digestion of tropical legumes' grains (Canavalia brasiliensis; Lablab purpureus; pink, red and white Vigna unguiculata) were investigated. The undigested residue was fermented with a pig faecal inoculum to determine fermentability, gas and short-chain fatty acid (SCFA) productions. Soaked raw legumes increased the production of SCFAs (e...
December 9, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29217200/timing-is-everything-reiterative-wnt-bmp-and-ra-signaling-regulate-developmental-competence-during-endoderm-organogenesis
#4
Scott A Rankin, Kyle W McCracken, David M Luedeke, Lu Han, James M Wells, John M Shannon, Aaron M Zorn
A small number of signaling pathways are used repeatedly during organogenesis, and they can have drastically different effects on the same population of cells depending on the embryonic stage. How cellular competence changes over developmental time is not well understood. Here we used Xenopus, mouse, and human pluripotent stem cells to investigate how the temporal sequence of Wnt, BMP, and retinoic acid (RA) signals regulates endoderm developmental competence and organ induction, focusing on respiratory fate...
December 4, 2017: Developmental Biology
https://www.readbyqxmd.com/read/29206846/bacterial-community-composition-in-the-gut-content-of-lampetra-japonica-revealed-by-16s-rrna-gene-pyrosequencing
#5
Yu Zuo, Wenfang Xie, Yue Pang, Tiesong Li, Qingwei Li, Yingying Li
The composition of the bacterial communities in the hindgut contents of Lampetrs japonica was surveyed by Illumina MiSeq of the 16S rRNA gene. An average of 32385 optimized reads was obtained from three samples. The rarefaction curve based on the operational taxonomic units tended to approach the asymptote. The rank abundance curve representing the species richness and evenness was calculated. The composition of microbe in six classification levels was also analyzed. Top 20 members in genera level were displayed as the classification tree...
2017: PloS One
https://www.readbyqxmd.com/read/29203332/toll-like-receptor-tlr-22-a-non-mammalian-tlr-in-asian-seabass-lates-calcarifer-characterisation-ontogeny-and-inductive-expression-upon-exposure-with-bacteria-and-ligands
#6
Anutosh Paria, M Makesh, Aparna Chaudhari, C S Purushothaman, K V Rajendran
Toll-like receptor (TLR) 22 is a non-mammalian TLR found mostly in teleosts and characterized initially as a cell surface surveillance receptor for detecting extracellular long dsRNA. In the current study, the full-length cDNA sequence consisting of 3312 nucleotides encoding for 960 amino acids in Asian seabass (Lates calcarifer) TLR22 (AsTLR22) was identified. From the putative protein sequence, signature TLR domains such as 18 LRR domains, two transmembrane domains, a single LRR_CT domain and an intracellular TIR domain could be predicted...
December 1, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29189732/identification-and-characterization-of-hyphantria-cunea-aminopeptidase-n-as-a-binding-protein-of-bacillus-thuringiensis-cry1ab35-toxin
#7
Yakun Zhang, Dan Zhao, Xiaoping Yan, Wei Guo, Yajun Bao, Wei Wang, Xiaoyun Wang
The fall webworm, Hyphantria cunea (Drury) is a major invasive pest in China. Aminopeptidase N (APN) isoforms in lepidopteran larvae midguts are known for their involvement in the mode of action of insecticidal crystal (Cry) proteins from Bacillus thuringiensis. In the present work, we identified a putative Cry1Ab toxin-binding protein, an APN isoform designated HcAPN3, in the midgut of H. cunea by ligand blot and mass spectrometry. HcAPN3 was highly expressed throughout all larval developmental stages and was abundant in the midgut and hindgut tissues...
November 30, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29181074/hindgut-neuroendocrine-neoplasms-characteristics-and-prognosis
#8
Paweł Gut, Joanna Waligórska-Stachura, Agata Czarnywojtek, Nadia Sawicka-Gutaj, Maciej Bączyk, Katarzyna Ziemnicka, Kosma Woliński, Ariadna Zybek, Jakub Fischbach, Marek Ruchała
Introduction: The aim of the study was to analyze the clinicopathologic characteristics and prognostic factors of hindgut-rectal neuroendocrine neoplasms. Material and methods: The study included 38 patients with rectal neuroendocrine tumors who were treated at the Department of Endocrinology, Metabolism and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland from February 2010 to December 2015. The clinicopathological data were retrospectively reviewed, extracted, analyzed, and patients were followed up to determine their survival status...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29180788/pseudotrichonympha-leei-pseudotrichonympha-lifesoni-and-pseudotrichonympha-pearti-new-species-of-parabasalian-flagellates-and-the-description-of-a-rotating-subcellular-structure
#9
Javier Del Campo, Erick R James, Yoshihisa Hirakawa, Rebecca Fiorito, Martin Kolisko, Nicholas A T Irwin, Varsha Mathur, Vittorio Boscaro, Elisabeth Hehenberger, Anna Karnkowska, Rudolf H Scheffrahn, Patrick J Keeling
Pseudotrichonympha is a large and structurally complex genus of parabasalian protists that play a key role in the digestion of lignocellulose in the termite hindgut. Like many termite symbionts, it has a conspicuous body plan that makes genus-level identification relatively easy, but species-level diversity of Pseudotrichonympha is understudied. Molecular surveys have suggested the diversity is much greater than the current number of described species, and that many "species" described in multiple hosts are in fact different, but gene sequences from formally described species remain a rarity...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29178376/a-comparative-meta-analysis-on-the-relationship-of-faecal-calcium-and-phosphorus-excretion-in-mammals
#10
REVIEW
L F Böswald, B Dobenecker, M Clauss, E Kienzle
To investigate the relationship between faecal calcium (Ca) and phosphorus (P) excretion in different mammalian species, a meta-analysis on digestibility data derived from the literature was conducted. Seventy-three studies on carnivores, omnivores, large and small hindgut fermenters, ruminants and hippos (a total of 21 mammalian species, precondition for inclusion dietary Ca/P ratio 1.5/1 - 3.0/1) were analysed for Ca and P digestibility. Dietary Ca/P ratios were lower than faecal Ca/P ratios in carnivores, omnivores, ruminants and hippos...
November 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29155033/the-gut-virome-of-the-protochordate-model-organism-ciona-intestinalis-subtype-a
#11
Brittany A Leigh, Anni Djurhuus, Mya Breitbart, Larry J Dishaw
The identification of host-specific bacterial and viral communities associated with diverse animals has led to the concept of the metaorganism, which defines the animal and all of its associated microbes as a single unit. Here we sequence the viruses found in the gut (i.e., the gut virome) of the marine invertebrate model system, Ciona intestinalis subtype A, in samples collected one year apart. We present evidence for a host-associated virome that is distinct from the surrounding seawater and contains some temporally-stable members...
November 15, 2017: Virus Research
https://www.readbyqxmd.com/read/29152255/effects-of-monobutyrin-and-tributyrin-on-liver-lipid-profile-caecal-microbiota-composition-and-scfa-in-high-fat-diet-fed-rats
#12
Thao Duy Nguyen, Olena Prykhodko, Frida Fåk Hållenius, Margareta Nyman
Butyric acid has been shown to have suppressive effects on inflammation and diseases related to the intestinal tract. The aim of the present study was to investigate whether supplementation of two glycerol esters, monobutyrin (MB) and tributyrin (TB), would reach the hindgut of rats, thus having an effect on the caecal profile of SCFA, microbiota composition and some risk markers associated with chronic inflammation. For this purpose, rats were fed high-fat diets after adding MB (1 and 5 g/kg) and TB (5 g/kg) to a diet without any supplementation (high-fat control; HFC)...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29152240/nutrient-digestibility-hindgut-metabolites-and-antioxidant-status-of-dogs-supplemented-with-pomegranate-peel-extract
#13
Tony Jose, Ashok K Pattanaik, Sunil E Jadhav, Narayan Dutta, Shalini Sharma
The present study assessed the effect of dietary supplementation of pomegranate peel (methanolic) extract (PPE) on the nutrient digestibility, faecal fermentative metabolites and antioxidant status of dogs. Six medium-sized dogs of mixed breeds were allocated to two groups in a replicated cross-over design and fed a basal diet with and without supplementation of PPE at 50 mg/kg body weight. Each of the experimental periods consisted of 30 d, with a 21 d washout period in between. Results indicated that PPE supplementation led to no significant changes in nutrient digestibility except a trend of improvement (P = 0·070) in crude fibre digestibility...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29145818/risk-factors-associated-with-the-progression-and-metastases-of-hindgut-neuroendocrine-tumors-a-retrospective-study
#14
Yoichiro Okubo, Rika Kasajima, Masaki Suzuki, Yohei Miyagi, Osamu Motohashi, Manabu Shiozawa, Emi Yoshioka, Kota Washimi, Kae Kawachi, Yoichi Kameda, Tomoyuki Yokose
BACKGROUND: The worldwide incidence of neuroendocrine tumors (NETs) has increased remarkably, with the hindgut being the second most common site for such tumors. However, the mechanisms underlying progression and metastasis of hindgut NETs are unclear. A retrospective study was conducted to elucidate these mechanisms. METHODS: Clinicopathological data of cases of hindgut NET between April 1996 and September 2015 were analyzed, retrospectively. Patients with neuroendocrine carcinoma were excluded...
November 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29145612/developmental-and-gut-related-changes-to-microbiomes-of-the-cultured-juvenile-spiny-lobster-panulirus-ornatus
#15
Mei C Ooi, Evan F Goulden, Gregory G Smith, Barbara F Nowak, Andrew R Bridle
With recent technologies making it possible for commercial scale closed life-cycle aquaculture production of spiny lobster (Panulirus ornatus) comes a strong impetus to further understand aspects of lobster health. The gut microbiome plays a crucial role in host health, affecting growth, digestion, immune responses and pathogen resistance. Herein we characterise and compare gut microbiomes across different developmental stages (6-7 d post-emergence [dpe], 52 dpe and 13 months post-emergence [mpe]) and gut regions (foregut, midgut and hindgut) of cultured P...
November 14, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29134943/phylogenomic-analysis-of-balantidium-ctenopharyngodoni-ciliophora-litostomatea-based-on-single-cell-transcriptome-sequencing
#16
Zongyi Sun, Chuanqi Jiang, Jinmei Feng, Wentao Yang, Ming Li, Wei Miao
In this paper, we present transcriptome data for Balantidium ctenopharyngodoni Chen, 1955 collected from the hindgut of grass carp (Ctenopharyngodon idella). We evaluated sequence quality and de novo assembled a preliminary transcriptome, including 43.3 megabits and 119,141 transcripts. Then we obtained a final transcriptome, including 17.7 megabits and 35,560 transcripts, by removing contaminative and redundant sequences. Phylogenomic analysis based on a supermatrix with 132 genes comprising 53,873 amino acid residues and phylogenetic analysis based on SSU rDNA of 27 species were carried out herein to reveal the evolutionary relationships among six ciliate groups: Colpodea, Oligohymenophorea, Litostomatea, Spirotrichea, Heterotrichea and Protocruziida...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/29133203/expression-and-functional-characterization-of-tachykinin-related-peptides-in-the-blood-feeding-bug-rhodnius-prolixus
#17
A N S Haddad, M S Defferrari, S Hana, S G Szeto, A B Lange
Tachykinins (tachykinin-related peptides, TRPs) are multifunctional neuropeptides that have widespread distribution in the central nervous system (CNS) and in the gastrointestinal tract of many insects, and most have been shown to stimulate contractions of visceral muscles. Invertebrate TRPs carry a characteristic conserved C-terminal pentapeptide (FXGXR-amide) and most of them share some amino acid sequence similarities (approx. 45%) with the vertebrate and mammalian tachykinin family. We have functionally characterized the tachykinins in R...
November 10, 2017: Peptides
https://www.readbyqxmd.com/read/29127028/effects-of-dietary-panax-notoginseng-extract-on-growth-performance-fish-composition-immune-responses-intestinal-histology-and-immune-related-genes-expression-of-hybrid-grouper-epinephelus-lanceolatus-%C3%A2-%C3%A3-epinephelus-fuscoguttatus-%C3%A2-fed-high-lipid-diets
#18
Zhenzhu Sun, Xiaohong Tan, Huaqun Ye, Cuiyun Zou, Chaoxia Ye, Anli Wang
Growth, plasma biochemical parameters, fish composition, immune parameters, intestinal histology, and expressions of immune-related genes were examined in hybrid grouper (Epinephelus lanceolatus ♂ × Epinephelus fuscoguttatus ♀) that fed respectively six diets containing Panax notoginseng extract (PNE) at 0, 0.5, 1, 2, 4, and 10 g kg(-1) after 8 weeks. Results indicated that dietary PNE significantly improved growth, feed efficiency ratio, protein efficiency ratio, and protein deposit rate, and significantly increased crude protein and crude lipid levels of whole body and crude protein level of muscle...
November 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29126986/functional-redundancy-of-glucose-acquisition-mechanisms-in-the-hindgut-of-pacific-hagfish-eptatretus-stoutii
#19
Alyssa M Weinrauch, Alexander M Clifford, Greg G Goss
This study examined the mechanisms of glucose acquisition in the hindgut of Pacific hagfish (Eptatretus stoutii) using in vitro gut sac techniques. The intestine was determined to have the capacity to digest maltose into glucose along the entirety of the tract, including the foregut. Glucose uptake was biphasic and consisted of a high-affinity, low-capacity concentration-dependent component conforming to Michaelis-Menten kinetics (Km 0.37mM, Jmax 8.48nmol/cm(2)/h) as well as a diffusive component. There was no observed difference in glucose flux rate along the length of the intestine, similar to other nutrients investigated in the hagfish intestine...
November 7, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29114157/a-study-on-the-occurrence-of-pinworms-in-the-hindgut-of-periplaneta-americana
#20
Jayati Ghosh
American cockroach, Periplaneta americana harbours pinworms in their gut. In the present study, 88 host cockroaches were dissected and the number of adult females of each pinworm species was recorded from Barasat, North 24 Parganas, West Bengal. Three species of Oxyurid nematodes were found: Hammerschmidtiella diesingi (Hammerschmidt, Helminthologische Beiträge. Isis (oken), Leipz 5:351-358, 1838), Leidynema appendiculatum (Leidy in Proc Acad Natl Sci Phila 5:100-102, 1850) and Thelastoma sp. (Leidy in Proc Nat Acad Sci Phila 4:30, 1849)...
December 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
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