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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/28110405/cyanotoxins-producing-organisms-occurrence-toxicity-mechanism-of-action-and-human-health-toxicological-risk-evaluation
#2
REVIEW
Franca M Buratti, Maura Manganelli, Susanna Vichi, Mara Stefanelli, Simona Scardala, Emanuela Testai, Enzo Funari
Cyanobacteria were present on the earth 3.5 billion years ago; since then they have colonized almost all terrestrial and aquatic ecosystems. They produce a high number of bioactive molecules, among which some are cyanotoxins. Cyanobacterial growth at high densities, forming blooms, is increasing in extension and frequency, following anthropogenic activities and climate changes, giving rise to some concern for human health and animal life exposed to cyanotoxins. Numerous cases of lethal poisonings have been associated with cyanotoxins ingestion in wild animal and livestock...
January 21, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28110108/boys-are-not-exempt-sexual-exploitation-of-adolescents-in-sub-saharan-africa
#3
Jones K Adjei, Elizabeth M Saewyc
Research on youth sexual exploitation in Africa has largely neglected the experiences of exploited boys. To date, much of the research in sub-Saharan Africa continues to consider boys mainly as exploiters but not as exploited. Using the only publicly available population-based surveys from the National Survey of Adolescents, conducted in four sub-Saharan African countries - Burkina Faso, Ghana, Malawi, and Uganda-we assessed factors associated with transactional sexual behaviour among never-married adolescent boys and girls...
January 18, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28109900/microcystin-lr-retards-gonadal-maturation-through-disrupting-the-growth-hormone-insulin-like-growth-factors-system-in-zebrafish
#4
Jie Hou, Yujing Su, Wang Lin, Honghui Guo, Ping Xie, Jun Chen, Zemao Gu, Li Li
Recent studies have documented that microcystins (MCs) have potential toxic effects on growth and reproduction in fish. However, no systematic data exist on whether MCs cause gonadal development retardation through disrupting the growth hormone/insulin-like growth factors (GH/IGFs) system. To this end, zebrafish hatchlings (5 d post-fertilization) were exposed to 0, 0.3, 3 and 30µg/L microcystin-LR (MC-LR) for 90 d until they reached sexual maturity. Life-cycle exposure to MC-LR caused delayed ovarian maturation and sperm development along with ultrapathological lesions in the brain and liver...
January 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28109894/pregnancy-outcomes-following-direct-uterine-fibroid-thermal-ablation-a-review-of-the-literature
#5
REVIEW
Julia Keltz, Mark Levie, Scott Chudnoff
The objective of this review is to describe the reproductive outcomes of women after radiofrequency volumetric thermal ablation (RFVTA) of fibroids or magnetic resonance-guided high-intensity focused ultrasound (MRgHIFU). This is a literature review of the current case reports of reproductive outcomes following direct fibroid thermal ablation at multiple academic and private centers throughout the world. A literature search was performed using PubMed and Medline. All publications that included data of women who underwent radiofrequency fibroid ablation or magnetic resonance-guided high-intensity focused ultrasound of fibroids and subsequently conceived were included...
January 18, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28109853/variants-of-estrogen-receptor-alpha-and-beta-genes-modify-the-severity-of-sporadic-breast-cancer
#6
Luciana Montes Rezende, Fernando Augusto Lima Marson, Carmen Sílvia Passos Lima, Carmen Sílvia Bertuzzo
INTRODUCTION: Reproductive factors pose a risk for sporadic breast cancer(BC) development owing to the lifetime exposure to estrogen, a hormone responsible for cell proliferation in the breast. Because variants of the estrogen receptor(ER) alpha and beta genes have been associated with BC risk in numerous populations, the objective of the study was to determine whether the risk and severity of sporadic BC was associated with the rs2228480(ESR1) and rs4986938(ESR2) variants in a Brazilian population...
January 18, 2017: Gene
https://www.readbyqxmd.com/read/28109838/developmental-changes-and-day-night-expression-of-the-gonadotropin-inhibitory-hormone-system-in-the-european-sea-bass-effects-of-rearing-temperature
#7
José A Paullada-Salmerón, Guillaume Henri Loentgen, Mairi Cowan, María Aliaga-Guerrero, María Del Carmen Rendón-Unceta, José A Muñoz-Cueto
The role of rearing temperature on fish development, sex differentiation and puberty has been largely addressed, but the impact of water temperature on the ontogeny of the main neuroendocrine systems controlling reproduction has received little attention. Gonadotropin-inhibitory hormone (Gnih) has been shown to act on gonadotropin-releasing hormone (Gnrh) neurons and on the pituitary to inhibit gonadotropin release and synthesis in vertebrates, including sea bass, Dicentrarchus labrax. In the present study we investigated the effects of rearing temperature during the thermosensitive period (5-60days post-fertilization, dpf) on the expression of the Gnih gene (gnih) and its receptor (gnihr)...
January 18, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28109771/assessment-of-learning-memory-and-attention-in-developmental-neurotoxicology-regulatory-testing-commentary-on-essentiality-of-cognitive-assessment-for-protecting-child-health
#8
Charles V Vorhees
This commentary is in response to the remarks of Drs. Christina Sobin, Mari Golub, and David Herr on the Special Issue of this Journal entitled "Assessment of Learning, Memory, and Attention in Developmental Neurotoxicology Regulatory Testing." I endorse the views expressed by Drs. Sobin, Golub, and Herr and add some discussion on a recent Organization on Economic Cooperation and Development (OECD) guideline, the Extended One Generation Reproductive Toxicology Guideline (OECD 446), in which testing for higher cognitive function (learning and memory) has been eliminated...
January 18, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28109736/social-disparities-in-the-relationship-between-depression-and-unintended-pregnancy-during-adolescence-and-young-adulthood
#9
Kelli Stidham Hall, Jennifer L Richards, Kathleen Mullan Harris
PURPOSE: We investigated the influence of depression on subsequent risk of unintended pregnancy and social disparities within this relationship, during adolescence and young adulthood. METHODS: Drawing upon 15-year, nationally representative data from 8,810 young U.S. women in the National Longitudinal Study of Adolescent to Adult Health, we estimated associations between depression and time to first pregnancies reported as unintended, overall and stratified by race/ethnicity, socioeconomic status, and age with Cox proportional hazard models...
January 18, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109604/genome-wide-mapping-of-10-calving-and-fertility-traits-in-holstein-dairy-cattle-with-special-regard-to-chromosome-18
#10
M-P Müller, S Rothammer, D Seichter, I Russ, D Hinrichs, J Tetens, G Thaller, I Medugorac
Over the last decades, a dramatic decrease in reproductive performance has been observed in Holstein cattle and fertility problems have become the most common reason for a cow to leave the herd. The premature removal of animals with high breeding values results in both economic and breeding losses. For efficient future Holstein breeding, the identification of loci associated with low fertility is of major interest and thus constitutes the aim of this study. To reach this aim, a genome-wide combined linkage disequilibrium and linkage analysis (cLDLA) was conducted using data on the following 10 calving and fertility traits in the form of estimated breeding values: days from first service to conception of heifers and cows, nonreturn rate on d 56 of heifers and cows, days from calving to first insemination, days open, paternal and maternal calving ease, paternal and maternal stillbirth...
January 18, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28109540/what-will-donald-trump-s-presidency-mean-for-health-a-scorecard
#11
Martin McKee, Scott L Greer, David Stuckler
US Presidents make their mark on health, for better or worse. Donald Trump campaigned on a populist platform to "make America great again". While the actual policies his administration will pursue-and the priority he will place on each of them-remain in many ways uncertain, both his statements and his nominations for key government posts suggest that his presidency could have profound implications for health. His proposal to repeal and replace the Affordable Care Act with a "better reform", his stance on reproductive rights, and his approaches to other areas, such as science policy and climate change, coupled with his stated intention to put "America first" are creating anxiety and uncertainty about America's domestic health policies and its global leadership role in areas such as security and development...
January 18, 2017: Lancet
https://www.readbyqxmd.com/read/28109340/effectiveness-of-an-integrated-community-and-clinic-based-intervention-on-hiv-testing-hiv-knowledge-and-sexual-risk-behavior-of-young-men-who-have-sex-with-men-in-myanmar
#12
Poe Poe Aung, Claire Ryan, Ashish Bajracharya, Naanki Pasricha, Zaw Win Thein, Paul A Agius, Than Tun Sein, Lisa Willenberg, Ei Mon Soe, Ne Tun Zaw, Waimar Tun, Eileen Yam, Stanley Luchters
PURPOSE: Young men who have sex with men (YMSM) in Myanmar are disproportionately affected by HIV, with prevalence five times that of the general population. The Link Up project implemented an intervention using peer education and outreach providing education and counseling on health seeking around sexually transmitted infections and reproductive health, combined with focused clinic capacity building to improve the sexual and reproductive health of YMSM. This study aimed to evaluate the effectiveness and acceptability of the intervention...
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109339/stigma-reduction-training-improves-healthcare-provider-attitudes-toward-and-experiences-of-young-marginalized-people-in-bangladesh
#13
Scott Geibel, Sharif M I Hossain, Julie Pulerwitz, Nargis Sultana, Tarik Hossain, Shongkour Roy, Brady Burnett-Zieman, Lucy Stackpool-Moore, Barbara A Friedland, Reena Yasmin, Najmus Sadiq, Eileen Yam
PURPOSE: Working with health providers to reduce HIV stigma in the healthcare setting is an important strategy to improve service utilization and quality of care, especially for young people who are sexually active before marriage, are sexual minorities, or who sell sex. A stigma reduction training program for health providers in Bangladesh was evaluated. METHODS: A cohort of 300 healthcare providers were given a self-administered questionnaire, then attended a 2-day HIV and sexual and reproductive health and rights training (including a 90-minute session on stigma issues)...
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109338/linking-sexual-and-reproductive-health-and-rights-and-hiv-services-for-young-people-the-link-up-project
#14
Lucy Stackpool-Moore, Divya Bajpai, Georgina Caswell, Tyler Crone, Fleur Dewar, Greg Gray, Allen Kyendikuwa, Julie Mellin, Andrew Miller, Felicity Morgan, Luisa Orza, Jacqui Stevenson, Nienke Westerhof, Felicia Wong, Eileen Yam, Brady Zieman
Sexual health and access to services are a pressing need for young people. This article introduces Link Up, a 3-year project in three African and two Asian countries, to enable and scale up access to integrated HIV services and sexual and reproductive health and rights for marginalized young people. The young people we worked with in this project included young men who have sex with men, young sex workers, young people who use drugs, young transgender people, young homeless people, and other vulnerable young people...
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109336/increasing-uptake-of-hiv-sexually-transmitted-infection-and-family-planning-services-and-reducing-hiv-related-risk-behaviors-among-youth-living-with-hiv-in-uganda
#15
Lung Vu, Brady Burnett-Zieman, Cecily Banura, Jerry Okal, Margret Elang, Rodgers Ampwera, Georgina Caswell, Diana Amanyire, Jacquelyne Alesi, Eileen Yam
PURPOSE: To address barriers to care for youth living with HIV (YLHIV), the Link Up project implemented a peer-led intervention model that provided a comprehensive package of HIV and sexual and reproductive health and rights services through community-based peer support groups for YLHIV. Peer educators delivered targeted counseling and health education, and referred YLHIV to antiretroviral therapy (ART), and reproductive health services that were available at youth-oriented sexual and reproductive health and rights facilities...
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109334/searching-for-the-second-r-in-sexual-and-reproductive-health-and%C3%A2-%C3%A2-rights
#16
Luisa Orza, Tyler Crone, Julie Mellin, Nienke Westerhof, Lucy Stackpool-Moore, Enrique Restoy, Greg Gray, Jacqui Stevenson
Sexual and reproductive health and rights have gained prominence in the HIV response. The role of sexual and reproductive health in underpinning a successful approach to HIV prevention, treatment, care, and services has increasingly been recognized. However, the "second R," referring to sexual and reproductive rights, is often neglected. This leads to policies and programs which both fail to uphold and fulfill these rights and which fail to meet the needs of those most affected by HIV by neglecting to take account of the human right-based barriers and challenges they face...
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109333/sexual-and-reproductive-health-and-rights-and-hiv-programming-among-young-people-most-affected-by-hiv-lessons-from-the-link-up-project-in-five-countries
#17
EDITORIAL
David A Ross, John Santelli
No abstract text is available yet for this article.
February 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28109138/adaptations-in-the-microarchitecture-and-load-distribution-of-maternal-cortical-and-trabecular-bone-in-response-to-multiple-reproductive-cycles-in-rats
#18
Chantal M J de Bakker, Allison R Altman-Singles, Yihan Li, Wei-Ju Tseng, Connie Li, X Sherry Liu
Pregnancy, lactation, and weaning result in dramatic changes in maternal calcium metabolism. In particular, the increased calcium demand during lactation causes a substantial degree of maternal bone loss. This reproductive bone loss has been suggested to be largely reversible, as multiple clinical studies have found that parity and lactation history have no adverse effect on post-menopausal fracture risk. However, the precise effects of pregnancy, lactation, and post-weaning recovery on maternal bone structure are not well understood...
January 21, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28109031/undifferentiated-embryonic-cell-transcription-factor-1-utf1-and-deleted-in-azoospermia-like-dazl-expression-in-the-testes-of-donkeys
#19
Y S Lee, H J Jung, M J Yoon
Putative markers for each specific germ cell stage can be a useful tool to study the fate and functions of these cells. Undifferentiated embryonic cell transcription factor 1 (UTF1) is a putative marker for undifferentiated spermatogonia in humans, rats and horses. The deleted in azoospermia-like (DAZL) protein is also expressed by differentiated spermatogonia and primary spermatocytes in several species. However, whether the expression patterns of these molecular markers are identical and applicable to donkeys remains to be elucidated...
January 20, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28109029/reproductive-performance-of-breeder-quails-fed-diets-supplemented-with-l-cysteine-coated-iron-oxide-nanoparticles
#20
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
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