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https://www.readbyqxmd.com/read/28110429/in-vitro-effects-of-caffeic-acid-nortriptyline-precocene-i-and-quercetin-against-rhipicephalus-annulatus-acari-ixodidae
#1
Reghu Ravindran, Nayikottummal Devadas Chithra, Pattanur Edathil Deepa, Karapparambu Gopalan Ajithkumar, Leena Chandrasekhar, Kanapadinchareveetil Sreelekha, Suresh Narayanan Nair, Sanis Juliet, Srikanta Ghosh
In the present study, the acaricidal effects of caffeic acid, nortriptyline, precocene I and quercetin against Rhipicephalus annulatus (syn. Boophilus annulatus) Say (Acari: Ixodidae) were evaluated. Adult immersion technique (24 ticks immersed for 2 min in one dilution of the compound) was used for the assessment of the effects of caffeic acid (0.39-100 mg/mL), nortriptyline (0.625-50 mg/L), precocene I (0.004488-5 mg/mL) and quercetin (6.25-100 mg/mL) against R. annulatus. Adult tick mortality, reproductive index, inhibition of fecundity and hatching were calculated...
January 21, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28110187/insecticidal-activities-of-histone-deacetylase-inhibitors-against-a-dipteran-parasite-of-sheep-lucilia-cuprina
#2
Neil H Bagnall, Barney M Hines, Andrew J Lucke, Praveer K Gupta, Robert C Reid, David P Fairlie, Andrew C Kotze
Histone deacetylase inhibitors (HDACi) are being investigated for the control of various human parasites. Here we investigate their potential as insecticides for the control of a major ecto-parasite of sheep, the Australian sheep blowfly, Lucilia cuprina. We assessed the ability of HDACi from various chemical classes to inhibit the development of blowfly larvae in vitro, and to inhibit HDAC activity in nuclear protein extracts prepared from blowfly eggs. The HDACi prodrug romidepsin, a cyclic depsipeptide that forms a thiolate, was the most potent inhibitor of larval growth, with equivalent or greater potency than three commercial blowfly insecticides...
January 10, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28109905/cloning-genetic-engineering-and-characterization-of-tmof-expressed-in-saccharomyces-cerevisiae-to-control-larval-mosquitoes
#3
Borovsky Dov, Sabine Nauewelaers, Charles A Powell, Robert G Shatters
Trypsin modulating oostatic factor, a decapaptide isolated from the ovaries of A. aegypti, is the physiological factor that terminates the trypsin biosynthesis after the blood meal. Earlier results obtained from feeding mosquito larvae and injecting female mosquitoes with TMOF show that trypsin biosynthesis and egg development are inhibited, indicating that TMOF traverses the gut epithelial cells and modulates trypsin biosynthesis, making it a potential larvacidal peptide hormone. Therefore, TMOF and TMOF green fluorescent protein (GFP) fusion protein with a trypsin cleavage site, allowing TMOF release in the larval gut, were expressed in S...
January 18, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28109839/ex-utero-culture-of-viviparous-embryos-of-the-lizard-zootoca-vivipara-provides-insights-into-calcium-homeostasis-during-development
#4
Tom W Ecay, James R Stewart, Greg Wiessner, Benoit Heulin
The chorioallantoic membrane resides adjacent to either the inner surface of the egg shell or uterine epithelium in oviparous and viviparous reptiles, respectively. Chorionic cells face the shell or uterine epithelium and transport calcium to underlying embryonic capillaries. Calcium transport activity of the chorioallantois increases in the final stages of development coincident with rapid embryonic growth and skeletal ossification. We excised embryos from viviparous Zootoca vivipara females at a stage prior to significant calcium accumulation and incubated them ex utero with and without calcium to test the hypothesis that chorioallantois calcium transport activity depends on developmental stage and not calcium availability...
January 18, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28109772/trichoderma-virens-as-a-biocontrol-of-toxocara-canis-in-vivo-evaluation
#5
Fernando de Souza Maia Filho, Anelise Oliveira da Silva Fonseca, Beatriz Maroneze Persici, Julia de Souza Silveira, Caroline Quintana Braga, Luciana Pötter, Sônia de Avila Botton, Daniela Isabel Brayer Pereira
BACKGROUND: Microorganisms have been widely studied as biological control agents of parasites of medical and veterinary importance. Coprophagous arthropods, bacteria and fungi are among the different organisms evaluated as potential biological control agents. Nematophagous fungi capture and digest the free forms of nematodes in the soil. Due to its zoonotic potential, Toxocara canis have been brought to the attention of researchers. AIMS: The aim of the present study was to determine whether the administration of embryonated T...
January 18, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28109460/dietary-protein-sources-and-all-cause-and-cause-specific-mortality-the-golestan-cohort-study-in-iran
#6
Maryam S Farvid, Akbar F Malekshah, Akram Pourshams, Hossein Poustchi, Sadaf G Sepanlou, Maryam Sharafkhah, Masoud Khoshnia, Mojtaba Farvid, Christian C Abnet, Farin Kamangar, Sanford M Dawsey, Paul Brennan, Paul D Pharoah, Paolo Boffetta, Walter C Willett, Reza Malekzadeh
INTRODUCTION: Dietary protein comes from foods with greatly different compositions that may not relate equally with mortality risk. Few cohort studies from non-Western countries have examined the association between various dietary protein sources and cause-specific mortality. Therefore, the associations between dietary protein sources and all-cause, cardiovascular disease, and cancer mortality were evaluated in the Golestan Cohort Study in Iran. METHODS: Among 42,403 men and women who completed a dietary questionnaire at baseline, 3,291 deaths were documented during 11 years of follow up (2004-2015)...
February 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28109029/reproductive-performance-of-breeder-quails-fed-diets-supplemented-with-l-cysteine-coated-iron-oxide-nanoparticles
#7
H Mohammadi, A Farzinpour, A Vaziry
The objective of this study was to investigate the effects of L-cysteine-coated iron oxide nanoparticles on reproductive performance in breeder quails. The five treatment diets consisted of (i) negative control diet not supplemented with iron, (ii) positive control diet supplemented with 60 mg/kg of Fe3 O4 and (iii) experimental diets supplemented with 0.6, 6 and 60 mg/kg of L-cysteine-coated iron oxide nanoparticles. A total of 100 seven-day-old quail chicks were weighed and randomly placed to five groups of five replicate cages...
January 20, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28108730/the-relationship-between-liver-kidney-impairment-and-viral-load-after-nephropathogenic-infectious-bronchitis-virus-infection-in-embryonic-chickens
#8
Qiqi Huang, Xiaona Gao, Ping Liu, Huayuan Lin, Weilian Liu, Guohui Liu, Jin Zhang, Guangfu Deng, Caiying Zhang, Huabin Cao, Xiaoquan Guo, Guoliang Hu
To examine the relationship of impairments of the liver and kidney with viral load after nephropathogenic infectious bronchitis virus (NIBV) infection in embryonic chickens, 120 specific-pathogen-free Leghorn embryonated chicken eggs were randomly divided into two groups (infected and control), with three replicates per group and 20 eggs in each replicate. The eggs in the infected and control groups were challenged with 0.2 mL of 10(5.5) ELD50 NIBV and sterile saline solution, respectively. The embryonic chickens' plasma and liver and kidney tissues were collected at 1, 3, and 5 days post-inoculation (dpi), the liver and kidney functional parameters were quantified, and the tissue viral loads were determined with real-time PCR...
January 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28108729/comparative-omega-3-fatty-acid-enrichment-of-egg-yolks-from-first-cycle-laying-hens-fed-flaxseed-oil-or-ground-flaxseed
#9
I J Ehr, M E Persia, E A Bobeck
When laying hen diets are enriched with omega-3 polyunsaturated fatty acids to generate value-added eggs for human consumption markets, concentrations of alpha-linolenic (ALA), eicosapentaenoic (EPA), and docosahexaenoic acids (DHA) in the yolk can reach 250 mg/50 g whole egg. Flaxseed, a rich source of ALA, is commonly used for omega-3 enrichment; however, the impact of dietary flaxseed source (extracted oil vs. milled seed) on fatty acid transfer to egg yolk in laying hens is unknown. Therefore, transfer of ALA, EPA, and DHA into egg yolk from extracted flaxseed oil or milled flaxseed was evaluated in Hy-Line W-36 laying hens over an 8-week feeding period (25 to 33 wk old)...
January 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28108032/disruption-of-the-sheep-bmpr-ib-gene-by-crispr-cas9-in-in%C3%A2-vitro-produced-embryos
#10
Xuemei Zhang, Wenrong Li, Yangsheng Wu, Xinrong Peng, Bian Lou, Liqin Wang, Mingjun Liu
BMPR-IB (also known as FecB) is a key candidate gene for the genetic control of sheep reproductive performance. Loss-of-function mutations in the sheep BMPR-IB gene lead to an increase in ovulation rate and consequently larger litter size. However, the BMPR-IB gene has been identified in only a few sheep breeds. To improve sheep reproduction through modification of the BMPR-IB gene, we designed an sgRNA to target the sheep BMPR-IB gene by using the CRISPR/Cas9 system. First, we performed gene editing by injecting Cas9/sgRNA into the cytoplasm of one-cell fertilized eggs...
November 9, 2016: Theriogenology
https://www.readbyqxmd.com/read/28107750/effect-of-clinically-approved-hdac-inhibitors-on-plasmodium-leishmania-and-schistosoma-parasite-growth
#11
Ming Jang Chua, Megan S J Arnold, Weijun Xu, Julien Lancelot, Suzanne Lamotte, Gerald F Späth, Eric Prina, Raymond J Pierce, David P Fairlie, Tina S Skinner-Adams, Katherine T Andrews
Malaria, schistosomiasis and leishmaniases are among the most prevalent tropical parasitic diseases and each requires new innovative treatments. Targeting essential parasite pathways, such as those that regulate gene expression and cell cycle progression, is a key strategy for discovering new drug leads. In this study, four clinically approved anti-cancer drugs (Vorinostat, Belinostat, Panobinostat and Romidepsin) that target histone/lysine deacetylase enzymes were examined for in vitro activity against Plasmodium knowlesi, Schistosoma mansoni, Leishmania amazonensis and L...
December 23, 2016: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28107701/simultaneous-determination-of-amantadine-rimantadine-and-memantine-in-processed-products-chicken-tissues-and-eggs-by-liquid-chromatography-with-tandem-mass-spectrometry
#12
Yumi Tsuruoka, Takayuki Nakajima, Maki Kanda, Hiroshi Hayashi, Yoko Matsushima, Souichi Yoshikawa, Marie Nagata, Hiroshi Koike, Chieko Nagano, Kotaro Sekimura, Tsuneo Hashimoto, Ichiro Takano, Tetsuya Shindo
A simultaneous determination of amantadine, rimantadine, and memantine in processed products (deep-fried chicken, fried chicken, fried quail egg, and grilled chicken) with liquid chromatography tandem mass spectrometry (LC-MS/MS) was developed. This new method was also applicable for chicken tissue (muscle, liver, and gizzard) and eggs. The chromatographic separation was performed on a Kinetex(®) XB-C18 core-shell technology column using a mobile phase of acetonitrile and 0.1% formic acid in a 10mmol/L ammonium formate solution, resulting in the complete separation of isomers (rimantadine and memantine) and any other obstructive peaks from the sample matrices...
January 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28107054/helping-relatives-survive-and-reproduce-inclusive-fitness-and-reproductive-value-in-brood-parasitism
#13
Malte Andersson
Costly help can raise a relative's reproduction, survival, and reproductive value and increase the inclusive fitness of the donor of help. Donor fitness is explored here in conspecific brood parasitism. In this alternative reproductive tactic, some females, "parasites," lay eggs in nests of other females of the same species, "hosts," suppliers of help that alone take care of the offspring. Modeling shows that hosts can gain inclusive fitness if parasitized by relatives whose reproduction or survival is thereby increased...
February 2017: American Naturalist
https://www.readbyqxmd.com/read/28106948/genetic-differentiation-associated-with-host-plants-and-geography-among-six-widespread-species-of-south-american-blepharoneura-fruit-flies-tephritidae
#14
Kristina Ottens, Isaac S Winkler, Matthew L Lewis, Sonja J Scheffer, Géssica A Gomes-Costa, Marty A Condon, Andrew A Forbes
Tropical herbivorous insects are astonishingly diverse and many are highly host-specific. Much evidence suggests that herbivorous insect diversity is a function of host-plant diversity; yet, the diversity of some lineages exceeds the diversity of plants. Although most species of herbivorous fruit flies in the Neotropical genus Blepharoneura are strongly host-specific (they deposit their eggs in a single host plant species and flower sex), some species are collected from multiple hosts or flowers and these may represent examples of lineages that are diversifying via changes in host use...
January 20, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28106858/regulation-of-dna-replication-in-early-embryonic-cleavages
#15
REVIEW
Chames Kermi, Elena Lo Furno, Domenico Maiorano
Early embryonic cleavages are characterized by short and highly synchronous cell cycles made of alternating S- and M-phases with virtually absent gap phases. In this contracted cell cycle, the duration of DNA synthesis can be extraordinarily short. Depending on the organism, the whole genome of an embryo is replicated at a speed that is between 20 to 60 times faster than that of a somatic cell. Because transcription in the early embryo is repressed, DNA synthesis relies on a large stockpile of maternally supplied proteins stored in the egg representing most, if not all, cellular genes...
January 19, 2017: Genes
https://www.readbyqxmd.com/read/28105571/metal-stress-in-zooplankton-diapause-production-post-hatching-response
#16
Adriana Aránguiz-Acuña, Pablo Pérez-Portilla
Aquatic organisms commonly respond to harsh conditions by forming diapausing stages, which enable populations to survive adverse periods forming egg banks. Production of diapausing eggs is frequently observed in monogonont rotifers, previously changing from asexual to partial sexual reproduction (mixis). In despite that zooplankton are frequently used in ecotoxicological assessment because of their sensitivity to various toxicants and their important role in the ecosystems, toxicity evaluations often consider the directly exposed population produced by parthenogenetic reproduction, exclusively...
January 19, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28105402/multishelled-ni-rich-li-ni-x-co-y-mn-z-o2-hollow-fibers-with-low-cation-mixing-as-high-performance-cathode-materials-for-li-ion-batteries
#17
Yihui Zou, Xianfeng Yang, Chunxiao Lv, Tongchao Liu, Yanzhi Xia, Lu Shang, Geoffrey I N Waterhouse, Dongjiang Yang, Tierui Zhang
A simple seaweed biomass conversion strategy is proposed to synthesize highly porous multishelled Ni-rich Li(Ni x Co y Mn z )O2 hollow fibers with very low cation mixing. The low cation mixing results from the cation confinement by the novel "egg-box" structure in the alginate template. These hollow fibers exhibit remarkable energy density, high-rate capacity, and long-term cycling stability when used as cathode material for Li-ion batteries.
January 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28105298/the-right-to-know-one-s-genetic-origins-and-cross-border-medically-assisted-reproduction
#18
EDITORIAL
Vardit Ravitsky
The use of donor sperm or egg for reproduction raises the issue of the right of donor-conceived individuals to know their genetic origins. This paper argues in favor of acknowledging such a right and explores the challenges that cross-border medically assisted reproduction would raise in relation to it. It first explores possible justifications for such a right by discerning its possible conceptual and empirical groundings. It describes some key ethical and policy implications of the removal of donor anonymity...
2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28105107/long-time-vs-short-time-insemination-of-sibling-eggs
#19
Jing Liu, Xiao Zhang, Yue Yang, Junliang Zhao, Dayong Hao, Jianrui Zhang, Yanli Liu, Wenbin Wu, Xingling Wang
This study aimed to evaluate the impact of a short insemination procedure on embryo development, assess the reliability of a fertilization check prior to the appearance of pronuclei and elucidate the role of rescue intracytoplasmic sperm injection (R-ICSI). Patients who had ≥9 eggs, were aged <38 years and had normal semen samples were included. The sibling eggs of each patient were divided into two groups; one half for conventional in vitro fertilization (IVF; insemination time, 20 h) and the other half for short insemination (insemination time, 5 h)...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104971/anti-inflammatory-and-anti-nociceptive-activities-of-stem-bark-extracts-and-fractions-of-carpolobia-lutea-polygalaceae
#20
Lucky Legbosi Nwidu, Blessing Airhihen, Augustine Ahmadu
BACKGROUND: In Niger Delta, ethnomedicine hydroalcoholic extract of Carpolobia lutea (CL) (Polygalaceae) is used to relieve inflammatory pains. OBJECTIVES: The purpose of this study is to evaluate the anti-inflammatory and antinociceptive effects of ethanolic stem extract (ESE) and to fractionate the ESE for the elucidation of bioactive molecules. MATERIALS AND METHODS: The antinociceptive effects for ESE were tested against two noxious stimuli; chemical (acetic acid-induced writhing and formalin-induced pain) and thermal (hot plate) stimuli...
December 2016: Journal of Basic and Clinical Pharmacy
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