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https://www.readbyqxmd.com/read/28340146/effect-of-broiler-breeders-fed-with-corn-or-sorghum-diet-and-canthaxanthin-supplementation-on-production-and-reproductive-performance
#1
C E V Bonilla, A P Rosa, A Londero, C B S Giacomini, C Orso, M O Fernandes, S J Paixão, D V Bonamigo
This study was designed to evaluate the effect of corn or sorghum diet and canthaxanthin (CX) supplementation on performance in broiler breeders. A total of 440 females with similar body weight (BW) (3.71 ± 0.14 kg) and 60 roosters were placed in an open-sided house with 20 pens, randomly distributed in a factorial arrangement (2 × 2). There were 4 diets of 2 ingredients; corn (CO) or sorghum (SO) and 2 levels of CX; 6 mg/kg (CX) and 0 mg/kg (NCX) totaling 5 replicate pens of 22 females and 3 males each, from 42 to 65 wk, divided in 2 periods (from wk 42 to 53 and wk 54 to 65)...
March 4, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339941/productive-performance-egg-quality-and-hatching-traits-of-japanese-quail-reared-under-different-levels-of-glycerin
#2
A Ghayas, J Hussain, A Mahmud, K Javed, A Rehman, S Ahmad, S Mehmood, M Usman, H M Ishaq
This study evaluated subsequent effects of glycerin on productive performance, egg quality, and hatching traits in Japanese quail. A total of 200 birds was arranged according to a completely randomized design into 5 treatment groups having 5 replicates of 8 birds each (6 females and 2 males). Treatments consisted 5 levels of glycerin, i.e., 2.5, 5, 7.5, and 10% and the control group. Birds were fed with different levels of glycerin during a rearing period of 6 wk and their subsequent effects on productive performance, egg quality, and hatching traits were observed...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339861/constitutive-luteinizing-hormone-receptor-signaling-causes-sexual-dysfunction-and-leydig-cell-adenomas-in-male-mice1
#3
Lan Hai, Deepak S Hiremath, Marilène Paquet, Prema Narayan
The luteinizing hormone receptor (LHCGR) is necessary for fertility and genetic mutations cause defects in reproductive development and function. Activating mutations in LHCGR cause familial male limited precocious puberty (FMPP). We have previously characterized a mouse model (KiLHRD582G) for FMPP that exhibits the same phenotype of precocious puberty, Leydig cell hyperplasia and elevated testosterone as boys with the disorder. We observed that KiLHRD582G male mice became infertile by 6 months of age although sperm count and motility were normal...
February 17, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339338/fertility-treatments-among-female-cancer-survivors-giving-birth-a-finnish-register-based-study
#4
Johanna Melin, Laura Madanat-Harjuoja, Sirpa Heinävaara, Nea Malila, Mika Gissler, Aila Tiitinen
BACKGROUND: Long-term survival rates for most types of childhood cancers have improved dramatically over the past decades. However, because of advances in multimodality treatments, cancer survivors nowadays more often face long-term complications, including diminished gonadal and reproductive function. The aim of this study was to identify whether the use of fertility treatments among early onset (0-34 years) cancer survivors giving birth differed from that among siblings giving birth and to identify the subgroups of cancer survivors that were most likely to require fertility treatments...
March 24, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28334957/quechers-based-method-for-pesticides-analysis-in-adipose-tissue-associated-with-rat-ovaries
#5
Nathalie Zamariola, Pedro Toledo Netto, Carla Adriene da Silva Franchi, João Lauro Viana de Camargo, Mary Rosa Rodrigues de Marchi
The concomitant exposure to low doses of various pesticides is one of the most relevant issues in human toxicology today. An experimental toxicology study was developed to evaluate the effects of this type of exposure on the reproductive capacity of females of three species of rats that were exposed to mixtures of dicofol, dieldrin, endosulfan and permethrin at low doses (LOAEL and NOAEL). In this context, we have developed a method for determining pesticides in adipose tissue (0.5 g, 49% lipid) associated with the ovaries, based on the QuEChERS (quick, easy, cheap, effective, rugged and safe) strategy...
March 14, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28334337/birth-outcomes-among-adolescent-and-young-adult-cancer-survivors
#6
Chelsea Anderson, Stephanie M Engel, Jennifer E Mersereau, Kristin Z Black, William A Wood, Carey K Anders, Hazel B Nichols
Importance: Cancer diagnosis and treatment may adversely affect reproductive outcomes among female cancer survivors. Objective: To compare the birth outcomes of adolescent and young adult cancer survivors (AYA [diagnosed at ages 15-39 years]) with those of women without a cancer diagnosis. Design, Setting, and Participants: The North Carolina Central Cancer Registry (CCR) was used to identify female AYA cancer survivors diagnosed from January 2000 to December 2013; CCR records were linked to statewide birth certificate files from January 2000 to December 2014 to identify postdiagnosis live births to AYA survivors (n = 2598)...
March 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28334254/selection-realized-heritability-and-fitness-cost-associated-with-dimethoate-resistance-in-a-field-population-of-culex-quinquefasciatus-diptera-culicidae
#7
Mehboob Alam, Muhammad Waqas Sumra, Daniyal Ahmad, Rizwan Mustafa Shah, Muhammad Binyameen, Sarfraz Ali Shad
Mosquitoes are known to be vectors of numerous diseases leading to human morbidity and mortality at large scale in the world. Insecticide resistance has become a serious concern in controlling the insect vectors of public health importance. Dimethoate is an organophosphate insecticide used to control different insect pests including mosquitoes. Biological parameters of susceptible, unselected, and dimethoate-selected strains of Culex quinquefasciatus Say were studied in the laboratory to recognize resistance development potential and associated fitness cost...
March 14, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334193/physiological-responses-induced-by-ostrinia-furnacalis-lepidoptera-crambidae-feeding-in-maize-and-their-effects-on-o-furnacalis-performance
#8
Jingfei Guo, Jianqing Guo, Kanglai He, Shuxiong Bai, Tiantao Zhang, Jiuran Zhao, Zhenying Wang
Plants damaged by herbivorous insects often respond by mounting a series of defense responses that can inhibit the insect's fitness. Ostrinia furnacalis (Guenée) (Lepidoptera: Crambidae) is a major insect pest in maize throughout much of Asia, Australia, and the western Pacific islands. We examined the effects of O. furnacalis -induced maize defenses on O. furnacalis fitness, and explained the effects from biochemical changes that occur in maize leaves in response to O. furnacalis feeding. The results of the age-stage, two-sex life table showed that significantly longer larval and pupal life spans, and total preoviposition period (TPOP) occurred...
March 8, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334130/effective-biological-control-depends-on-life-history-strategies-of-both-parasitoid-and-its-host-evidence-from-aphidius-colemani-myzus-persicae-system
#9
Diwas Khatri, Xiong Z He, Qiao Wang
Mechanisms behind the success and failure of aphid biological control using parasitoids are largely unknown, probably because of the lack of knowledge of life history strategies of the insects involved. Here, we measured and compared life history strategies of Myzus persicae (Sulzer) (Hemiptera: Aphididae) and its parasitoid Aphidius colemani (Viereck) (Hymenoptera: Aphidiidae), providing essential information for evaluation of the potential of A. colemani to control M. persicae. Our results show that one A...
February 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28334083/susceptibility-of-seven-selected-tomato-cultivars-to-tuta-absoluta-lepidoptera-gelechiidae-implications-for-its-management
#10
Saeedeh Ghaderi, Yaghoub Fathipour, Shahriar Asgari
Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a serious pest originating from South America that affects tomato production in many countries, particularly in Iran (since 2010). In this study, by using age-stage, two-sex life-table parameters, the resistance of seven tomato cultivars, namely, 'Primo Early', 'Rio Grande', 'Cal JN3', 'Petomech', 'Early Urbana Y', 'Super 2270', and 'Super Strain B' to T. absoluta, was evaluated under laboratory conditions (25 ± 1 °C, 60 ± 5% RH, and a photoperiod of 16:8 (L:D) h)...
February 19, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28333937/variability-in-age-and-size-at-maturation-reproductive-longevity-and-long-term-growth-dynamics-for-kemp-s-ridley-sea-turtles-in-the-gulf-of-mexico
#11
Larisa Avens, Lisa R Goshe, Lewis Coggins, Donna J Shaver, Ben Higgins, Andre M Landry, Rhonda Bailey
Effective management of protected sea turtle populations requires knowledge not only of mean values for demographic and life-history parameters, but also temporal and spatial trends, variability, and underlying causes. For endangered Kemp's ridley sea turtles (Lepidochelys kempii), the need for baseline information of this type has been emphasized during attempts to understand causes underlying the recent truncation in the recovery trajectory for nesting females. To provide insight into variability in age and size at sexual maturation (ASM and SSM) and long-term growth patterns likely to influence population trends, we conducted skeletochronological analysis of humerus bones from 333 Kemp's ridleys stranded throughout the Gulf of Mexico (GOM) from 1993 to 2010...
2017: PloS One
https://www.readbyqxmd.com/read/28333902/proteflazid%C3%A2-and-local-immunity-in-diseases-caused-by-human-papillomavirus-herpesvirus-and-mixed-urogenital-infections
#12
Vjacheslav Kaminsky, Viktor Chernyshov, Oleksandr Grynevych, Vasil Benyuk, Alla Kornatskaya, Miroslava Shalko, Igor Usevich, Oleg Revenko, Maxim Shepetko, Ludmila Solomakha
Reporting of clinical trials results for Proteflazid® in the drug formulation suppositories and vaginal swabs soaked in the solution of the drug to the local immunity of the female reproductive tract. AIM: The aim of study was to examine the state of local immunity in the reproductive tract of women with sexually transmitted diseases caused by human papillomavirus, herpes viruses (Type 1, 2) and mixed infection (herpes viruses + chlamydia). MATERIALS AND METHODS: The trials involved 216 women with viral sexually transmitted diseases: Cervical Dysplasia associated with papillomavirus infection (HPV) (Group 1); Herpes genitalis type 1 (HSV- 1) and type 2 (HSV-1) (Group 2); mixed infection - HSV-1, HSV-2 and chlamydia (Group 3)...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333823/committee-opinion-no-695-sterilization-of-women-ethical-issues-and-considerations
#13
(no author information available yet)
Sterilization is the most common method of contraception among married couples, with nearly twice as many couples choosing female partner sterilization over male sterilization. Although sterilization is among the most straightforward surgical procedures an obstetrician-gynecologist performs, it is enormously complex when considered from a historical, sociological, or ethical perspective. Sterilization practices have embodied a problematic tension, in which some women who desired fertility were sterilized without their knowledge or consent, and other women who wanted sterilization to limit their family size lacked access to it...
April 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28333815/committee-opinion-no-695-summary-sterilization-of-women-ethical-issues-and-considerations
#14
(no author information available yet)
Sterilization is the most common method of contraception among married couples, with nearly twice as many couples choosing female partner sterilization over male sterilization. Although sterilization is among the most straightforward surgical procedures an obstetrician-gynecologist performs, it is enormously complex when considered from a historical, sociological, or ethical perspective. Sterilization practices have embodied a problematic tension, in which some women who desired fertility were sterilized without their knowledge or consent, and other women who wanted sterilization to limit their family size lacked access to it...
April 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28333354/men-s-knowledge-attitudes-and-behaviours-relating-to-fertility
#15
Karin Hammarberg, Veronica Collins, Carol Holden, Kate Young, Robert McLachlan
BACKGROUND: The increasingly common practice in high-income countries to delay childbearing to the fourth and fifth decades of life increases the risk of involuntary childlessness or having fewer children than desired. Older age also increases the risk of age-related infertility, the need for ART to conceive, and obstetric and neonatal complications. Existing research relating to childbearing focusses almost exclusively on women, and in public discourse declining fertility rates are often assumed to be the result of women delaying childbearing to pursue other life goals such as a career and travel...
March 10, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333301/preconception-maternal-lipoprotein-levels-in-relation-to-fecundability
#16
Sarah J Pugh, Enrique F Schisterman, Richard W Browne, Anne M Lynch, Sunni L Mumford, Neil J Perkins, Robert Silver, Lindsey Sjaarda, Joseph B Stanford, Jean Wactawski-Wende, Brian Wilcox, Katherine L Grantz
STUDY QUESTION: Are maternal preconception lipid levels associated with fecundability? SUMMARY ANSWER: Fecundability was reduced for all abnormal female lipid levels including total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and total triglyceride levels. WHAT IS KNOWN ALREADY: Subfecundity affects 7-15% of the population and lipid disorders are hypothesized to play a role since cholesterol acts as a substrate for the synthesis of steroid hormones...
March 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333238/clustering-of-pcos-like-traits-in-naturally-hyperandrogenic-female-rhesus-monkeys
#17
D H Abbott, B H Rayome, D A Dumesic, K C Lewis, A K Edwards, K Wallen, M E Wilson, S E Appt, J E Levine
STUDY QUESTION: Do naturally occurring, hyperandrogenic (≥1 SD of population mean testosterone, T) female rhesus monkeys exhibit traits typical of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Hyperandrogenic female monkeys exhibited significantly increased serum levels of androstenedione (A4), 17-hydroxyprogesterone (17-OHP), estradiol (E2), LH, antimullerian hormone (AMH), cortisol, 11-deoxycortisol and corticosterone, as well as increased uterine endometrial thickness and evidence of reduced fertility, all traits associated with PCOS...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333235/ovarian-hormones-and-obesity
#18
Brigitte Leeners, Nori Geary, Philippe N Tobler, Lori Asarian
BACKGROUND: Obesity is caused by an imbalance between energy intake, i.e. eating and energy expenditure (EE). Severe obesity is more prevalent in women than men worldwide, and obesity pathophysiology and the resultant obesity-related disease risks differ in women and men. The underlying mechanisms are largely unknown. Pre-clinical and clinical research indicate that ovarian hormones may play a major role. OBJECTIVE AND RATIONALE: We systematically reviewed the clinical and pre-clinical literature on the effects of ovarian hormones on the physiology of adipose tissue (AT) and the regulation of AT mass by energy intake and EE...
March 2, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333210/levels-of-trophectoderm-mitochondrial-dna-do-not-predict-the-reproductive-potential-of-sibling-embryos
#19
Nathan R Treff, Yiping Zhan, Xin Tao, Meir Olcha, Michael Han, Jessica Rajchel, Liza Morrison, Scott J Morin, Richard T Scott
STUDY QUESTION: What is the predictive value of trophectoderm mitochondrial DNA (mtDNA) quantity for blastocyst reproductive potential? SUMMARY ANSWER: This study demonstrates that, within a given cohort, mtDNA quantitation does not distinguish between embryos that implant and embryos that do not implant after double embryo transfer (DET). WHAT IS ALREADY KNOWN: An association between implantation failure and increased quantities of mtDNA has been observed in two studies but not in a third...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333087/magnetically-bioprinted-human-myometrial-3d-cell-rings-as-a-model-for-uterine-contractility
#20
Glauco R Souza, Hubert Tseng, Jacob A Gage, Arunmani Mani, Pujan Desai, Fransisca Leonard, Angela Liao, Monica Longo, Jerrie S Refuerzo, Biana Godin
Deregulation in uterine contractility can cause common pathological disorders of the female reproductive system, including preterm labor, infertility, inappropriate implantation, and irregular menstrual cycle. A better understanding of human myometrium contractility is essential to designing and testing interventions for these important clinical problems. Robust studies on the physiology of human uterine contractions require in vitro models, utilizing a human source. Importantly, uterine contractility is a three-dimensionally (3D)-coordinated phenomenon and should be studied in a 3D environment...
March 23, 2017: International Journal of Molecular Sciences
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