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https://www.readbyqxmd.com/read/28528417/sea-urchin-embryogenesis-as-bioindicators-of-marine-pollution-in-impact-areas-of-the-sea-of-japan-east-sea-and-the-sea-of-okhotsk
#1
Olga N Lukyanova, Elena V Zhuravel, Denis N Chulchekov, Andrey A Mazur
The embryogenesis of the sea urchin sand dollar Scaphechinus mirabilis was used as bioindicators of seawater quality from the impact areas of the Sea of Japan/East Sea (Peter the Great Bay) and the Sea of Okhotsk (northwestern shelf of Sakhalin Island and western shelf of Kamchatka Peninsula). Fertilization membrane formation, first cleavage, blastula formation, gastrulation, and 2-armed and 4-armed pluteus formation have been analyzed and a number of abnormalities were calculated. Number of embryogenesis anomalies in sand dollar larvae exposed to sea water from different stations in Peter the Great Bay corresponds to pollution level at each area...
May 20, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28520935/safety-evaluation-of-daidzein-in-laying-hens-effects-on-laying-performance-hatchability-egg-quality-clinical-blood-parameters-and-organ-development
#2
J Lu, L Qu, M M Shen, S M Li, T C Dou, Y P Hu, K H Wang
Daidzein has become increasingly popular as a dietary supplement, particularly for postpeak-estrus animals, as a safe and natural alternative estrogen-like compound. However, there is little available safety data of daidzein in laying hens. A study was conducted to examine if high-dose daidzein affected the safety of hens, including mortality, laying performance, egg quality, hematological parameters, clinical chemical parameters, organ development parameters, and hatchability. A total of 2,448 42-wk-old Rugao laying hens were randomly assigned to 4 groups with 6 replicates of 102 birds each (612 laying hens per group)...
May 17, 2017: Poultry Science
https://www.readbyqxmd.com/read/28516451/evidence-that-eating-baked-egg-or-milk-influences-egg-or-milk-allergy-resolution-a-systematic-review
#3
REVIEW
R Lambert, K E C Grimshaw, B Ellis, J Jaitly, G Roberts
BACKGROUND: It has been proposed that the frequent ingestion of baked hen's egg or cow's milk accelerates the resolution of hen's egg or cow's milk allergy. This practice is being introduced into clinical practice. OBJECTIVE: To systematically review the evidence to determine whether the introduction of baked hen's egg or cow's milk into the diet of children with hen's egg or cow's milk allergies respectively leads to a larger proportion of children outgrowing these allergies than expected...
May 17, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28515642/physicochemical-and-functional-characterization-of-blue-shelled-eggs-in-korea
#4
Joko Sujiwo, Dongwook Kim, Ji-Yeol Yoon, Hanna Kim, Jung-Soo Kim, Sung-Ki Lee, Aera Jang
The aim of this study was to compare the quality and physicochemical characteristics of blue-shelled eggs (BE) and conventional eggs (CE). Proximate composition, quality, pH value, shell color, collagen content, fatty acid composition, total cholesterol, α-glucosidase inhibition activity, and antioxidation activity were determined. The proximate composition, general qualities, and pH values of CE and BE showed no significant differences, except in moisture composition, weight, and shell thickness. Moisture content and weight of BE were significantly lower than those of CE...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28513911/sperm-capacitation-pretreatment-positively-impacts-bovine-intracytoplasmic-sperm-injection
#5
L Águila, F Zambrano, M E Arias, Felmer R
The efficiency of intracytoplasmic sperm injection (ICSI) in bovines is low compared to other species due in part to inadequate egg activation and sperm nucleus decondensation after injection. We hypothesized that this low efficiency is due to the lack of complete sperm capacitation, so we evaluated the effects of isobutylmethylxanthine (IBMX) and methyl-β-cyclodextrin (MβCD) on bovine sperm capacitation and on the preimplantation developmental potential of bovine embryos generated by ICSI. Treatment with IBMX and MβCD decreased sperm viability (between 13 to 30%); nevertheless, 0...
May 17, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28512316/phenotypic-plasticity-trade-offs-and-gene-expression-changes-accompanying-dietary-restriction-and-switches-in-bactrocera-dorsalis-hendel-diptera-tephritidae
#6
Er-Hu Chen, Qiu-Li Hou, Dan-Dan Wei, Hong-Bo Jiang, Jin-Jun Wang
In this study, we investigated the effects of dietary restriction (DR) and variable diets on phenotypes and gene expression in oriental fruit fly, Bactrocera dorsalis (Hendel), one of the most economically important pests in the family Tephritidae around the world. As expected, we found that DR altered the B. dorsalis phenotypes by significantly increasing stress resistance and lifespan, but reduced egg production when compared with the control diet. The results suggested a trade-off between reproduction versus somatic maintenance (stress resistance) and lifespan in B...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511862/effect-of-different-concentrations-of-egg-yolk-and-virgin-coconut-oil-in-tris-based-extenders-on-chilled-and-frozen-thawed-bull-semen
#7
A A Tarig, H Wahid, Y Rosnina, N Yimer, Y M Goh, F H Baiee, A M Khumran, H Salman, M Ebrahimi
The aim of this study was to evaluate the effects of 8% virgin coconut oil (VCO) combined with different percentages of egg yolk in Tris extender on the quality of chilled and frozen-thawed bull semen. A total of 24 ejaculates from four bulls were collected using an electroejaculator. Semen samples were diluted with 8% VCO in Tris extender which contained different concentrations 0% (control), 4%, 8%, 12%, 16% and 20% egg yolk. The diluted semen samples were divided into two fractions: one was chilled and stored at 4°C until evaluation after 24, 72, and 144h; the second fraction was processed by chilling for 3h at 4°C to equilibrate, then packaged in 0...
April 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28511457/leptin-as-a-predictive-marker-in-unexplained-infertility-in-north-indian-population
#8
Pratibha Kumari, S P Jaiswar, Pushplata Shankhwar, Sujata Deo, Kalim Ahmad, Bushra Iqbal, A A Mahdi
INTRODUCTION: According to WHO, the primary infertility in India is about 3.9% (age-standardized to 25-49 year) and 16.8% (age-standardized to 15-49 year), using the "age but no birth" definition. Several factors which affect fertility include low sperm production in men, poor egg quality and blocked fallopian tubes in women and also hormonal imbalances. Leptin plays a critical role in women's reproduction and neuroendocrine health. It is used for treating exercise-induced bone loss, eating disorders and infertility...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28499128/stress-induced-by-heavy-metals-on-breeding-of-magpie-pica-pica-from-central-iran
#9
Mohammad Zarrintab, Rouhollah Mirzaei
The aim of this study was to address the impacts of some heavy metals (Cd, Pb, Zn, Ni and Cu) contamination on laying behavior, egg quality and breeding performance of Pica pica in north of Isfahan Province, Iran. During the breeding season of 2013, magpie's egg content and eggshell as well as nestling excrements and feathers were collected and total concentrations of heavy metals were measured by ICP-OES. Except for Zn in nestling feathers, the significantly higher concentrations of heavy metals were observed in nestling excrements than other samples...
May 9, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28490170/fertility-preservation-for-social-and-oncofertility-indications
#10
Paul R Brezina
The desire to reproduce is a base human instinct. However, for many individuals, the chances of being able to have a genetic child are compromised by a number of factors. For some, therapies aimed at treating serious medical illness, such as cancer; result in a deleterious impact on the function of eggs and sperm in the future thus compromising future fertility. In women, a predictable decrease in egg quality and quantity occurs with advancing maternal age. Therefore, women who choose to delay childbearing until their late 30s or early 40s may experience fertility difficulties that would not have been present earlier in life...
May 8, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28488738/comparison-of-three-different-extenders-on-murrah-buffaloes-bubalus-bubalis-semen-freezability
#11
M F Zorzetto, I Martin, Y F R Sancler-Silva, S Zoca, C P Freitas-Dell'Aqua, F O Papa, A A Ramos, J F Nunes, C C M Salgueiro, E Oba
The use of frozen semen for artificial insemination is the main approach utilised for the genetic improvement of most domesticated species. The advantages include lower transportation costs, continuous availability of semen, fewer occurrences of sexually transmitted diseases and the incorporation of desirable genes in a relatively short amount of time. Nevertheless, the use of frozen semen in buffalo herds remains limited due to the loss of sperm quality when buffalo semen is frozen. So, the goal of this study was to evaluate the pre- and post-cryopreservation quality of buffalo semen diluted in three distinct freezing media: Tris-egg yolk, Botu-bov® (BB) and ACP-111®...
May 10, 2017: Andrologia
https://www.readbyqxmd.com/read/28483200/a-systematic-review-and-meta-analysis-of-cross-reactivity-of-antibodies-induced-by-oil-in-water-emulsion-adjuvanted-influenza-h5n1-virus-monovalent-vaccines
#12
REVIEW
Kinnera E Chada, Richard Forshee, Hana Golding, Steven Anderson, Hong Yang
BACKGROUND: Cross-clade immunogenic stockpiled H5N1 vaccines may decrease the morbidity and transmission of infection during the initial phase of influenza pandemic. Meta-analysis of cross-reactive antibodies induced by oil-in-water emulsion adjuvanted (OWEA) influenza H5N1 virus monovalent vaccines with circulating heterologous H5N1 virus strains, isolated from human infections was performed. METHODS: Literature search of MEDLINE, EMBASE, Web of Knowledge, The Cochrane Library, ClinicalTrials...
May 31, 2017: Vaccine
https://www.readbyqxmd.com/read/28481043/novel-agents-for-sperm-purification-sorting-and-imaging
#13
REVIEW
Jean M Feugang
The stringent selection of viable spermatozoa ensures the transmission of high-quality genetic material to the egg during fertilization. Sperm heterogeneity within or between ejaculates and between males obliges varied post-collection handling of semen to assure satisfactory fertility rates. The current techniques used to assess sperm generally detect non-viable and non-fertilizing gametes in the ejaculate, but do not permit the investigation of semen for improved of fertility outcomes. Advances in technology, however, have spurred the search for new approaches to enrich semen with high-quality spermatozoa and to track intra-uterine sperm migration...
May 8, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28479754/effect-of-body-mass-index-on-the-outcome-of-in-vitro-fertilization-intracytoplasmic-sperm-injection-in-women
#14
Manish Banker, Dipesh Sorathiya, Sandeep Shah
BACKGROUND: Obesity, a known epidemic, is a leading cause of various reproductive disorders. Association of body mass index (BMI) with pregnancy outcomes, either ovarian or endometrial, is controversial and least elucidated. AIM: This study aimed to analyze the effect of BMI on in-vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) outcome in women using self-oocytes, embryos prepared from donor oocytes (DE), or vitrified/frozen embryos (VE) obtained from both the SE and DE groups...
January 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28475952/on-site-identification-of-meat-species-in-processed-foods-by-a-rapid-real-time-polymerase-chain-reaction-system
#15
Shunsuke Furutani, Yoshihisa Hagihara, Hidenori Nagai
Correct labeling of foods is critical for consumers who wish to avoid a specific meat species for religious or cultural reasons. Therefore, gene-based point-of-care food analysis by real-time Polymerase Chain Reaction (PCR) is expected to contribute to the quality control in the food industry. In this study, we perform rapid identification of meat species by our portable rapid real-time PCR system, following a very simple DNA extraction method. Applying these techniques, we correctly identified beef, pork, chicken, rabbit, horse, and mutton in processed foods in 20min...
April 22, 2017: Meat Science
https://www.readbyqxmd.com/read/28474397/thymol-feed-supplementation-in-quail-alters-the-percentages-of-nutritionally-relevant-egg-yolk-fatty-acids-effects-throughout-incubation
#16
Maria E Fernandez, Raul H Marin, Agustin Luna, Maria P Zunino, Maria C Labaque
BACKGROUND: PUFA are crucial components of the yolk and particularly prone to oxidative damage generating losses of nutrients for embryonic development and influencing the quality of eggs for human consumption. We evaluated whether dietary thymol (a natural antioxidant) is related to changes in quail egg yolk total, triglycerides and phospholipids fatty acid composition (T, TG, PL, respectively) at different stages of embryo development. Thus, female Japanese quail (100d) were assigned to 1 of 2 dietary treatments (12 individuals each): CON (basal diet) or THY (0...
May 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28472189/habitat-specific-differences-alter-traditional-biogeographic-patterns-of-life-history-in-a-climate-change-induced-range-expansion
#17
Megan E Riley, Blaine D Griffen
Range shifts and expansions resulting from global climate change have the potential to create novel communities with unique plant-animal interactions. Organisms expanding their range into novel biotic and abiotic environments may encounter selection pressures that alter traditional biogeographic patterns of life history traits. Here, we used field surveys to examine latitudinal patterns of life history traits in a broadly distributed ectotherm (mangrove tree crab Aratus pisonii) that has recently experienced a climate change-induced range expansion into a novel habitat type...
2017: PloS One
https://www.readbyqxmd.com/read/28470372/food-allergy-in-south-africa
#18
REVIEW
Claudia L Gray
PURPOSE OF THE REVIEW: Whilst food allergy seems to have increased significantly in many developed countries in the past few decades, quality data on the burden of food allergy in many developing countries is scanty. Until recently, South Africa had a dearth of robustly designed food allergy studies. This article summarizes some of the recent research and observations regarding food allergy from the South African setting. RECENT FINDINGS: South Africa has recently seen two important food allergy prevalence studies in selected and unselected populations...
June 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28461086/storage-temperature-and-sucrose-concentrations-affect-ram-sperm-quality-after-vitrification
#19
A Arando, A Gonzalez, J V Delgado, F A Arrebola, C C Perez-Marín
The aim of this study was to analyse the characteristics of ram spermatozoa subjected to varying concentrations of sucrose, and the influence of storage temperature (22°C or 5°C) prior to vitrification. Ejaculated semen was diluted in TCFEY (tris-citric acid-fructose 20% egg yolk), and two aliquots were prepared at a final concentration of 100×10(6)spz/ml, one maintained at room temperature (22°C) and the other at 5°C. In the first experiment, the toxicity of sucrose diluents on the sperm was analysed; sperm samples at different temperatures were diluted (1:2) in TCF-BSA 2% (control) or in the same extender supplemented with various sucrose concentrations (0...
April 25, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28452172/effects-of-nanocalcium-carbonate-on-egg-production-performance-and-plasma-calcium-of-laying-hens
#20
S Ganjigohari, N Ziaei, A Ramzani Ghara, S Tasharrofi
This experiment was conducted to evaluate the effects of nanocalcium carbonate (NCC) instead of calcium carbonate (CC) on egg production, egg weight, egg mass, FCR, blood calcium and egg quality characteristics in laying hens. A total of 120 laying hens were used in a 10-weeks trial, from week 23 to 33 of age. Laying hens were randomly assigned to six treatments with four replications, five hens each. The experimental treatments involved replacing 50% of the CC in the diet by decreasing amounts of NCC and were T1 Basal diet (BD) with 8...
April 27, 2017: Journal of Animal Physiology and Animal Nutrition
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