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https://www.readbyqxmd.com/read/28646875/genome-analysis-of-diploscapter-coronatus-insights-into-molecular-peculiarities-of-a-nematode-with-parthenogenetic-reproduction
#1
Hideaki Hiraki, Hiroshi Kagoshima, Christopher Kraus, Philipp H Schiffer, Yumiko Ueta, Michael Kroiher, Einhard Schierenberg, Yuji Kohara
BACKGROUND: Sexual reproduction involving the fusion of egg and sperm is prevailing among eukaryotes. In contrast, the nematode Diploscapter coronatus, a close relative of the model Caenorhabditis elegans, reproduces parthenogenetically. Neither males nor sperm have been observed and some steps of meiosis are apparently skipped in this species. To uncover the genomic changes associated with the evolution of parthenogenesis in this nematode, we carried out a genome analysis. RESULTS: We obtained a 170 Mbp draft genome in only 511 scaffolds with a N50 length of 1 Mbp...
June 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28644715/biological-responses-of-the-american-coot-fulica-americana-in-wetlands-with-contrasting-environmental-conditions-basin-of-m%C3%A3-xico
#2
María Eugenia López-Islas, Itzel Ibarra-Meza, Esperanza Ortiz-Ordóñez, Liliana Favari, J Elías Sedeño-Díaz, Eugenia López-López
Wetland ecosystems are subject to severe impacts (physical and chemical) and to the input of various xenobiotics that provoke toxicological consequences. Waterbirds are potential sentinel species of these environments. To analyze how habitat conditions affect the health of Fulica americana, early-warning biomarkers, histopathology, somatic indices, and water quality were examined in two wetlands of the Basin of Mexico: Xochimilco, an urban wetland highly eutrophic with a mixture of pollutants, and Tecocomulco (the reference site), a rural wetland with hunting migratory birds in winter, and with some agricultural contaminants...
June 23, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28637468/chorioallantoic-membranes-of-embryonated-chicken-eggs-as-an-alternative-system-for-isolation-of-equine-influenza-virus
#3
Ilona Marcelina Gora, Malgorzata Kwasnik, Jan Franciszek Zmudzinski, Wojciech Rozek
BACKGROUND: Influenza virus isolation in embryonated chicken eggs (ECEs) is not applicable for rapid diagnosis, however it allows the recovery and propagation of the viable virus. A low number of infectious virus particles in the swabs, poor quality of samples or individual strain properties can lead to difficulties during the virus isolation process. We propose to utilize chorioallantoic membranes (CAM) of ECEs with the assistance of real-time RT PCR to facilitate equine influenza virus isolation...
June 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28629176/fortifying-horticultural-crops-with-essential-amino-acids-a-review
#4
REVIEW
Guoping Wang, Mengyun Xu, Wenyi Wang, Gad Galili
To feed the world's growing population, increasing the yield of crops is not the only important factor, improving crop quality is also important, and it presents a significant challenge. Among the important crops, horticultural crops (particularly fruits and vegetables) provide numerous health compounds, such as vitamins, antioxidants, and amino acids. Essential amino acids are those that cannot be produced by the organism and, therefore, must be obtained from diet, particularly from meat, eggs, and milk, as well as a variety of plants...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28625761/impact-of-vitamin-d-levels-on-ovarian-reserve-and-ovarian-response-to-ovarian-stimulation-in-oocyte-donors
#5
Alberta Maria Fabris, Maria Cruz, Carlos Iglesias, Alberto Pacheco, Azadeh Patel, Jayesh Patel, Human Fatemi, Juan Antonio García-Velasco
Recently, growing interest in vitamin D has emerged from findings that demonstrate a low vitamin D status in populations. Similarly, much interest has been shown in the role that anti-Müllerian hormone (AMH) plays in reproductive physiology. Considerable confusion as to whether vitamin D status is related to ovarian function can be found in the literature. Our retrospective study was performed from June 2014 to April 2015. Oocyte donors were recruited and stimulated under the antagonist protocol with gonadotrophin-releasing hormone (GnRH) agonist to trigger ovulation...
May 19, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28622660/assessing-the-effects-of-the-antidepressant-venlafaxine-to-fathead-minnows-exposed-to-environmentally-relevant-concentrations-over-a-full-life-cycle
#6
Joanne L Parrott, Chris D Metcalfe
Venlafaxine is an antidepressant drug that has been detected in municipal wastewater effluents at low μg/L concentrations. To assess the potential of this compound to affect the survival, development and reproductive capacity of fish, we exposed fathead minnow (Pimephales promelas) over a full lifecycle in a flow-through system to nominal venlafaxine concentrations of 0.88, 8.8, and 88 μg/L. Mean measured venlafaxine concentrations in these treatments were 1.0, 9.3 and 75 μg/L. During the 167-168 d exposure, no significant changes were observed in survival, or the weights and lengths of fathead minnows...
June 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28620771/oviposition-preference-for-young-plants-by-the-large-cabbage-butterfly-pieris-brassicae-does-not-strongly-correlate-with-caterpillar-performance
#7
Minghui Fei, Jeffrey A Harvey, Yi Yin, Rieta Gols
The effects of temporal variation in the quality of short-lived annual plants on oviposition preference and larval performance of insect herbivores has thus far received little attention. This study examines the effects of plant age on female oviposition preference and offspring performance in the large cabbage white butterfly Pieris brassicae. Adult female butterflies lay variable clusters of eggs on the underside of short-lived annual species in the family Brassicaceae, including the short-lived annuals Brassica nigra and Sinapis arvensis, which are important food plants for P...
June 15, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28615871/morphometric-and-scanning-electron-microscopy-based-identification-of-ancylostoma-caninum-parasites-in-dog
#8
Harsimarandeep Singh Uppal, Mandeep Singh Bal, L D Singla, Paramjit Kaur, B S Sandhu
Ancylostoma caninum, a blood feeding nematode parasite (Family: Ancylostomatidae, Superfamily: Ancylostomatoidea) can cause anaemia, dark reddish-brown to black haemorrhagic diarrhoea, dehydration, wasting and deaths due to heavy blood loss. Adult hook worm parasites recovered from the intestine of a stray dog at the time of necropsy were identified as A. caninum based on morphological characters and morphometric observations involving scanning electron microscopy (SEM). Different developmental stages of hookworm eggs viz...
June 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/28608538/effects-of-dietary-red-yeast-sporidiobolus-pararoseus-on-production-performance-and-egg-quality-of-laying-hens
#9
W Tapingkae, K Panyachai, M Yachai, H V Doan
The purpose of this study was to evaluate the effect of dietary red yeast (Sporidiobolus pararoseus) on production performance and egg quality of laying hens. A total of 200 Esa Brown laying hens (23 weeks of age) were allocated equally to negative control group (no yeast supplement); positive control group (2 g/kg of Saccharomyces cerevisiae); 0.5, 1, 2 g/kg red yeast respectively. The experiment was lasted for 12 weeks. Feed intake, hen-day egg production and egg weight were not different between control and supplemented groups...
June 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28596058/adolescents-unhealthy-eating-habits-are-associated-with-meal-skipping
#10
Paulo Rogério Melo Rodrigues, Ronir Raggio Luiz, Luana Silva Monteiro, Márcia Gonçalves Ferreira, Regina Maria Veras Gonçalves-Silva, Rosangela Alves Pereira
OBJECTIVE: Meal consumption and diet quality are important for healthy development during adolescence. The aim of this study was to determine the association between meal habits and diet quality in Brazilian adolescents. METHODS: A school-based, cross-sectional study was conducted in 2008 with a probabilistic sample of adolescents ages 14 to 19 y (N = 1139) from high schools in central-western Brazil. Consumption of breakfast, morning snack, lunch, afternoon snack, and dinner was assessed to evaluate adolescents' meal profile...
April 5, 2017: Nutrition
https://www.readbyqxmd.com/read/28593470/effect-of-selenium-from-selenium-enriched-kale-sprout-versus-other-selenium-sources-on-productivity-and-selenium-concentrations-in-egg-and-tissue-of-laying-hens
#11
Anut Chantiratikul, Orawan Chinrasri, Piyanete Chantiratikul
A 6-week trial was conducted to compare the effect of selenium (Se) from hydroponically produced Se-enriched kale sprout (HPSeKS), sodium selenite (SS), and Se-enriched yeast (SeY) in laying hens. A total of 144 40-week-old hens were randomly divided into four groups, according to a completely randomized design. Each group consisted of four replicates with nine hens per replicate. The dietary treatments were T1 (basal diet) and T2, T3, and T4 (basal diets supplemented with 0.30 mg Se/kg from SS, SeY, and HPSeKS, respectively)...
June 7, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28592634/high-quality-frozen-extracts-of-xenopus-laevis-eggs-reveal-size-dependent-control-of-metaphase-spindle-micromechanics
#12
Jun Takagi, Yuta Shimamoto
Cell-free extracts from unfertilized Xenopus laevis eggs offer the opportunity for a variety of biochemical assays for analyzing essential cell cycle events, such as metaphase spindle assembly. However, the extracts often exhibit substantial variation in quality and have low storage stability, which mask important information related to their intrinsic heterogeneity. Here, we report a simple two-step method for preparing frozen egg extracts that retain spindle assembly activity levels that are similar to those of freshly prepared extracts...
June 7, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28592266/urgent-needs-in-fostering-neglected-tropical-diseases-ntds-laboratory-capacity-in-who-western-pacific-region-results-from-the-external-quality-assessment-on-ntds-diagnosis-in-2012-2015
#13
Yan Lu, Glenda Gonzales, Shao-Hong Chen, Hao Li, Yu-Chun Cai, Yan-Hong Chu, Lin Ai, Mu-Xin Chen, Hai-Ning Chen, Jia-Xu Chen
BACKGROUND: Neglected tropical diseases (NTDs) are a heterogeneous group of mainly chronic, debilitating and often stigmatizing diseases that largely affects low-income and politically marginalized populations, causing a large burden of public health, social and economies in the NTDs endemic countries. NTDs are caused by infections with a range of pathogen, including bacteria, parasites, protozoa and viruses. The accurate diagnosis of NTDs is important for reducing morbidity, preventing mortality and for monitoring of control programs...
June 8, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28579337/cryopreservation-of-canine-sperm-using-egg-yolk-and-soy-bean-based-extenders
#14
María Jesús Sánchez-Calabuig, Verónica Maillo, Paula Beltrán-Breña, Julio de la Fuente Martínez, Silvestre Galera-Carrillo, José Félix Pérez-Gutiérrez, Serafín Pérez-Cerezales
Animal protein-based extenders are widely used despite being a potential source of bacterial or mycoplasma contamination. Its replacement with vegetal protein-based extenders could represent an interesting alternative for dog sperm cryopreservation. This technique could be further improved by the addition of Tris-Glucose-Citric acid (TGC) that could physically protect the spermatozoa and improve its homeostasis. The aim of this study was to evaluate a cryopreservation protocol for dog spermatozoa using a soybean-based extender (LP1(℗)) as well as the effects of the addition of (TGC) immediately after the semen collection...
May 31, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28578791/letrozole-an-aromatase-inhibitor-reduces-post-peak-age-related-regression-of-rooster-reproductive-performance
#15
Emad Abdulgabbar Ali, Mahdi Zhandi, Armin Towhidi, Mojtaba Zaghari, Mahdi Ansari, Mojtaba Najafi, Hamid Deldar
This study was designed to evaluate orally administrated Letrozole (Lz) on reproductive performance, plasma testosterone and estradiol concentrations and relative abundance of mRNA of GnRH, FSH and LH in roosters. Ross 308 roosters (n=32) that were 40-weeks of age were individually housed and received a basal standard diet supplemented different amounts of capsulated Lz [0 (Lz-0), 0.5 (Lz-0.5), 1 (Lz-1) or 1.5 (Lz-1.5), mg Lz/bird/day] for 12 weeks. Sperm quality variables and plasma testosterone and estradiol concentrations were assessed from the first to the tenth week of the treatment period...
May 27, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28572935/waffle-production-influence-of-batter-ingredients-on-sticking-of-fresh-egg-waffles-at-baking-plates-part-i-effect-of-starch-and-sugar-components
#16
Regina Huber, Regine Schoenlechner
Fresh egg waffles are a sweet convenience product typically baked from eggs, water, sugar, flour, fat, leavening agents, emulsifiers, preservatives, and flavors. In industrial production, waffles are baked continuously in high amounts of up to 200 kg raw material per hour. Therefore, it is important that the waffles do not stick onto the baking plates, which can cause significant product loss and increased costs due to interruption of the baking process, required cleaning procedures, and restarting of the energy-consuming start-up phase...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28569208/development-of-a-health-education-intervention-strategy-using-an-implementation-research-method-to-control-taeniasis-and-cysticercosis-in-burkina-faso
#17
Helena Ngowi, Ivan Ozbolt, Athanase Millogo, Veronique Dermauw, Télesphore Somé, Paul Spicer, Lori L Jervis, Rasmané Ganaba, Sarah Gabriel, Pierre Dorny, Hélène Carabin
BACKGROUND: Taeniasis and cysticercosis are two diseases caused by Taenia solium, a parasite transmitted between humans and pigs, leading to considerable economic loss and disabilities. Transmission of the parasite is linked to environmental and behavioural factors such as inadequate sanitation and hygiene, poor pig management, and consumption of infected pork. This study used implementation research method to design a health education intervention strategy for reducing T. solium infections in Burkina Faso, a country endemic for the parasite...
June 1, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28559597/the-effects-of-egg-albumin-incorporation-on-quality-attributes-of-pale-soft-exudative-pse-like-turkey-rolls
#18
Burcu Öztürk, Meltem Serdaroğlu
Pale, soft, exudative (PSE-like) poultry phenomenon has been a growing problem in meat industry in terms of quality and economic losses, thus data is required to evaluate PSE raw material in product formulations. The aim of our study was to investigate the effects of egg albumin (EA) utilization on quality characteristics of PSE-like turkey rolls. Turkey Pectoralis major muscles were exposed to either 40 °C to stimulate typical processing causing PSE or 0 °C to reduce PSE and keep the muscles "normal". Turkey rolls were prepared in nine different formulations; using 100% normal (N), 50% normal + 50% PSE (NP) or 100% PSE meat (P)...
May 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28558938/effect-of-water-temperature-on-reproductive-performance-and-offspring-quality-of-rare-minnow-gobiocypris-rarus
#19
Si Luo, Shiyu Jin, Liangxia Su, Jianwei Wang
Water temperature plays a significant role in the reproductive processes of temperate fishes. In the present study, the effects of water temperature on the reproductive performance and offspring quality of rare minnow (Gobiocypris rarus) were evaluated by cultured parent fish at different temperature (18~30℃) in a 2-month trial. The results revealed that rare minnows could spawn continuously within the range from 18℃ to 30℃, and these at 24℃ and 27℃ spawned every 3-4 days. Batch size of rare minnow increased with increasing water temperature, while egg production increased with increasing water temperature and then decreased at 30℃...
July 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28551726/embryo-density-may-affect-embryo-quality-during-in-vitro-culture-in-a-microwell-group-culture-dish
#20
Adam Lehner, Zita Kaszas, Akos Murber, Janos Rigo, Janos Urbancsek, Peter Fancsovits
PURPOSE: Culturing embryos in groups is a common practice in mammalian embryology. Since the introduction of different microwell dishes, it is possible to identify oocytes or embryos individually. As embryo density (embryo-to-volume ratio) may affect the development and viability of the embryos, the purpose of this study was to assess the effect of different embryo densities on embryo quality. METHODS: Data of 1337 embryos from 228 in vitro fertilization treatment cycles were retrospectively analyzed...
May 27, 2017: Archives of Gynecology and Obstetrics
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