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Overeating

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https://www.readbyqxmd.com/read/28938782/perch-use-by-broiler-breeders-and-its-implication-on-health-and-production
#1
S G Gebhardt-Henrich, M J Toscano, H Würbel
Broiler breeders are commonly kept without perches, although perching has been shown to be a high-priority behavior in laying hens. We studied whether broiler breeders used elevated perches of different lengths during the night and how access to perches affected health and production. Using the Ross 308 hybrid, pens offering 4 different perch spaces per bird (5, 10, 14, and 20 cm) in a cross-over design were compared with pens without perches. The number of birds on perches at midnight were recorded 7 times during production...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938749/the-testicular-transcriptome-associated-with-spermatogonia-differentiation-initiated-by-gonadotrophin-stimulation-in-the-juvenile-rhesus-monkey-macaca-mulatta
#2
Suresh Ramaswamy, William H Walker, Paula Aliberti, Rahil Sethi, Gary R Marshall, Alyxzandria Smith, Seyedmehdi Nourashrafeddin, Alicia Belgorosky, Uma R Chandran, Mark P Hedger, Tony M Plant
STUDY QUESTION: What is the genetic landscape within the testis of the juvenile rhesus monkey (Macaca mulatta) that underlies the decision of undifferentiated spermatogonia to commit to a pathway of differentiation when puberty is induced prematurely by exogenous LH and FSH stimulation? SUMMARY ANSWER: Forty-eight hours of gonadotrophin stimulation of the juvenile monkey testis resulted in the appearance of differentiating B spermatogonia and the emergence of 1362 up-regulated and 225 down-regulated testicular mRNAs encoding a complex network of proteins ranging from enzymes regulating Leydig cell steroidogenesis to membrane receptors, and from juxtacrine and paracrine factors to transcriptional factors governing spermatogonial stem cell fate...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938738/resolution-of-infertility-and-number-of-children-1386-couples-followed-for-a-median-of-13-years
#3
A A Righarts, A Gray, N P Dickson, L Parkin, W R Gillett
STUDY QUESTION: How common were children among infertile couples? SUMMARY ANSWER: A total of 61.7% of infertile couples presenting for care subsequently had live born children 13.1 years after first being clinically assessed, with a mean of 1.7 children among those who had at least one. WHAT IS KNOWN ALREADY: While the prognoses for infertile couples undertaking specific treatments have been well described, less is known about those not undergoing these treatments or the total number of children...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938735/the-age-of-fathers-in-the-usa-is-rising-an-analysis-of-168-867-480-births-from-1972-to-2015
#4
Yash S Khandwala, Chiyuan A Zhang, Ying Lu, Michael L Eisenberg
STUDY QUESTION: How has the mean paternal age in the USA changed over the past 4 decades? SUMMARY ANSWER: The age at which men are fathering children in the USA has been increasing over time, although it varies by race, geographic region and paternal education level. WHAT IS KNOWN ALREADY: While the rise in mean maternal age and its implications for fertility, birth outcomes and public health have been well documented, little is known about paternal characteristics of births within the USA...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938734/hyperspectral-microscopy-can-detect-metabolic-heterogeneity-within-bovine-post-compaction-embryos-incubated-under-two-oxygen-concentrations-7-versus-20
#5
Melanie L Sutton-McDowall, Martin Gosnell, Ayad G Anwer, Melissa White, Malcolm Purdey, Andrew D Abell, Ewa M Goldys, Jeremy G Thompson
STUDY QUESTION: Can we separate embryos cultured under either 7% or 20% oxygen atmospheres by measuring their metabolic heterogeneity? SUMMARY ANSWER: Metabolic heterogeneity and changes in metabolic profiles in morula exposed to two different oxygen concentrations were not detectable using traditional fluorophore and two-channel autofluorescence but were detectable using hyperspectral microscopy. WHAT IS KNOWN ALREADY: Increased genetic and morphological blastomere heterogeneity is associated with compromised developmental competence of embryos and currently forms the basis for embryo scoring within the clinic...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938731/the-importance-of-genetic-parenthood-for-infertile-men-and-women
#6
S Hendriks, K Peeraer, H Bos, S Repping, E A F Dancet
STUDY QUESTION: Do men and women beginning to attend a fertility clinic prefer genetic over non-genetic parenthood? SUMMARY ANSWER: Nearly, all infertile men and women prefer genetic parenthood. WHAT IS KNOWN ALREADY: Clinicians assume that all infertile couples prefer genetic parenthood over non-genetic parenthood and, therefore, consider treatments with donor gametes an option of last resort. Previous studies of the desire for parenthood identified 30 motivations for genetic parenthood, and 51 motivations for which having a genetically related child is not strictly necessary but might be deemed required...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938651/positive-transcription-elongation-factor-b-p-tefb-is-a-therapeutic-target-in-human-multiple-myeloma
#7
Yu Zhang, Liang Zhou, Yun Leng, Yun Dai, Robert Z Orlowski, Steven Grant
The role of the positive RNA Pol II regulator, P-TEFb (positive transcription elongation factor b), in maintenance of the anti-apoptotic protein Mcl-1 and bortezomib (btz) resistance was investigated in human multiple myeloma (MM) cells. Mcl-1 was up-regulated in all MM lines tested, including bortezomib-resistant lines, human MM xenograft mouse models, and primary CD138(+) MM cells. Mcl-1 over-expression significantly reduced bortezomib lethality, indicating a functional role for Mcl-1 in bortezomib resistance...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938647/long-non-coding-rna-malat1-for-promoting-metastasis-and-proliferation-by-acting-as-a-cerna-of-mir-144-3p-in-osteosarcoma-cells
#8
Yong Wang, Yueyang Zhang, Tao Yang, Wei Zhao, Ningning Wang, Pengcheng Li, Xiandong Zeng, Weiguo Zhang
Long non-coding RNAs (lncRNAs) are involved in various biological processes and diseases including osteosarcoma. Long non-coding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is overly expressed in osteosarcoma. But the function and mechanism it works on in osteosarcoma proliferation and metastasis mediated by Rho associated coiled-coil containing protein kinase 1 (ROCK1) and Rho associated coiled-coil containing protein kinase 2 (ROCK2) remain unclear. In the present study, an elevated MALAT1 was found in osteosarcoma tissues and cell lines, and the elevated MALAT1 was correlated with a poor prognosis in osteosarcoma patients...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938635/distribution-of-circulating-tumor-dna-in-lung-cancer-analysis-of-the-primary-lung-and-bone-marrow-along-with-the-pulmonary-venous-and-peripheral-blood
#9
Taichiro Goto, Yosuke Hirotsu, Kenji Amemiya, Takahiro Nakagomi, Daichi Shikata, Yujiro Yokoyama, Kenichiro Okimoto, Toshio Oyama, Hitoshi Mochizuki, Masao Omata
Circulating tumor DNA (ctDNA), extracted from plasma, is a non-invasive surrogate biomarker. However, the distribution of ctDNA in the body still remains to be elucidated. In this study, resected lung tumors, with simultaneous blood and bone marrow samples, were analyzed to elucidate the distribution of ctDNA. Rib bone marrow, pulmonary venous blood (Pul.V) and peripheral blood (Peri.B) were obtained from 30 patients. The liquid samples were divided into cell pellets and supernatant by centrifugation; a total of 212 DNA samples were subjected to massively parallel sequencing...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938631/microrna-455-targets-cullin-3-to-activate-nrf2-signaling-and-protect-human-osteoblasts-from-hydrogen-peroxide
#10
Dawei Xu, Hao Zhu, Chengniu Wang, Xinhui Zhu, Genxiang Liu, Chu Chen, Zhiming Cui
Over-production of hydrogen peroxide (H2O2) will lead to human osteoblast dysfunction and apoptosis, causing progression of osteoporosis and osteonecrosis. NF-E2-related factor 2 (Nrf2) is a well-characterized anti-oxidant signaling. Cullin 3 (Cul3) ubiquitin E3 ligase dictates Nrf2 degradation. We demonstrate that microRNA-455 ("miR-455") is a putative Cul3-targeting microRNA. Forced-expression of miR-455 in both hFOB1. 19 osteoblast cell line and primary human osteoblasts induced Cul3 degradation and Nrf2 protein stabilization, which led to subsequent transcription of ARE (anti-oxidant response element)-dependent genes (NQO1, HO1 and GCLC)...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938624/addition-of-2-ethylamino-acetonitrile-group-to-nitroxoline-results-in-significantly-improved-anti-tumor-activity-in-vitro-and-in-vivo
#11
Ana Mitrović, Izidor Sosič, Špela Kos, Urša Lampreht Tratar, Barbara Breznik, Simona Kranjc, Bojana Mirković, Stanislav Gobec, Tamara Lah, Gregor Serša, Janko Kos
Lysosomal cysteine peptidase cathepsin B, involved in multiple processes associated with tumor progression, is validated as a target for anti-cancer therapy. Nitroxoline, a known antimicrobial agent, is a potent and selective inhibitor of cathepsin B, hence reducing tumor progression in vitro and in vivo. In order to further improve its anti-cancer properties we developed a number of derivatives using structure-based chemical synthesis. Of these, the 7-aminomethylated derivative (compound 17) exhibited significantly improved kinetic properties over nitroxoline, inhibiting cathepsin B endopeptidase activity selectively...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938621/effect-of-earlier-proteinuria-on-graft-functions-after-one-year-living-donor-renal-transplantation
#12
Zaiyou Dai, Luxi Ye, Dajin Chen, Xing Zhang, Meifang Wang, Rending Wang, Jianyong Wu, Jianghua Chen
BACKGROUND: Proteinuria is an indicator of subsequent renal function decline in most nephropathies and early proteinuria has been assumed to be a risk factor of poor kidney transplant outcomes. However, there is no information about the effect of earlier-proteinuria at the first week on short-term graft function after living donor renal transplantation. METHODS: Retrospective cohort study of 439 living donor kidney transplants to analyze the effect of early proteinuria at 7-day post-transplantation on short-term prognosis of living donor renal transplantation...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938581/targeting-progastrin-enhances-radiosensitization-of-colorectal-cancer-cells
#13
Aline Kowalski-Chauvel, Valerie Gouaze-Andersson, Alix Vignolle-Vidoni, Caroline Delmas, Christine Toulas, Elizabeth Cohen-Jonathan-Moyal, Catherine Seva
A high percentage of advanced rectal cancers are resistant to radiation. Therefore, increasing the efficacy of radiotherapy by targeting factors involved in radioresistance seems to be an attractive strategy. Here we demonstrated that the pro-hormone progastrin (PG), known to be over-expressed in CRC, and recognized as a pro-oncogenic factor, is a radioresistance factor that can be targeted to sensitize resistant rectal cancers to radiations. First, we observed an increase in PG mRNA expression under irradiation...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938537/mir-590-3p-promotes-proliferation-and-metastasis-of-colorectal-cancer-via-hippo-pathway
#14
Zhen-Qiang Sun, Ke Shi, Quan-Bo Zhou, Xiang-Yue Zeng, Jinbo Liu, Shuai-Xi Yang, Qi-San Wang, Zhen Li, Gui-Xian Wang, Jun-Min Song, Wei-Tang Yuan, Hai-Jiang Wang
Studies reported that miR-590-3p was involved in human cancer progression. However, its roles of oncogene or anti-oncogene in malignancies still remain elusive. This study was aimed to investigate the effect of miR-590-3p on the cell proliferation and metastasis via Hippo pathway in colorectal cancer (CRC). In our study, miR-590-3p was demonstrated highly expressed in CRC tissues, compared with adjacent normal tissues (P<0.05). In addition, miR-590-3p was positively associated with TNM stage and distant metastasis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938494/supercritical-fluid-chromatography-in-natural-product-analysis-an-update
#15
Nora Gibitz Eisath, Sonja Sturm, Hermann Stuppner
The wide chemical diversity of natural products has challenged analysts all over the world and has been a driving force for the development of innovative technologies since decades. In the last years, supercritical fluid chromatography (SFC) has finally emerged from the shadow of liquid chromatography (LC) and gas chromatography (GC) and has become a powerful tool in modern natural product analysis. Whereas in the past the technique had mainly been restricted to a small group of nonpolar compounds, it has largely expanded its suitability in the last years and has demonstrated possibilities without boundaries...
September 22, 2017: Planta Medica
https://www.readbyqxmd.com/read/28938488/ovarian-aging-in-women-with-brca-germline-mutations
#16
Wayne Lin, Shiny Titus, Fred Moy, Elizabeth S Ginsburg, Kutluk Oktay
Context: Recent clinical and laboratory studies suggested that women with BRCA mutations have lower ovarian reserve and their primordial follicle oocytes may be more prone to DNA damage but the direct proof is lacking. Objective: To determine whether women with germline BRCA mutations have reduced primordial follicle reserve and increased oocyte DNA damage. Design: A laboratory comparative study of ovarian tissue obtained from the risk-reducing salpingo- oophorectomy (RRSO) samples of unaffected BRCA mutation carrier (BMC) women vs...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938487/regulation-of-endogenous-male-rodent-glp-1-secretion-and-human-islet-insulin-secretion-by-antagonism-of-somatostatin-receptor-5
#17
Thomas B Farb, Marta Adeva, Thomas J Beauchamp, Over Cabrera, David A Coates, Tamika DeShea Meredith, Brian A Droz, Alexander Efanov, James V Ficorilli, Susan L Gackenheimer, Maria A Martinez-Grau, Victoriano Molero, Gema Ruano, Michael A Statnick, Todd M Suter, Samreen K Syed, Miguel A Toledo, Francis S Willard, Xin Zhou, Krister B Bokvist, David G Barrett
Incretin and insulin responses to nutrient loads are suppressed in persons with diabetes, resulting in decreased glycemic control. Whereas agents including sulfonylureas and Dipeptidyl peptidase-4 inhibitors (DPP4i) partially reverse these effects and provide therapeutic benefit, their modes of action limit efficacy. Because somatostatin (SST) has been shown to suppress both insulin and GLP-1 secretion through the Gi-coupled SST receptor 5 (SSTR5) isoform in vitro, antagonism of SSTR5 may improve glycemic control via intervention in both pathways...
September 11, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938439/single-dose-metformin-enhances-bile-acid-induced-glp-1-secretion-in-patients-with-type-2-diabetes
#18
Andreas Brønden, Anders Albér, Ulrich Rohde, Jens F Rehfeld, Jens J Holst, Tina Vilsbøll, Filip K Knop
Context: Despite a position as the first-line pharmacotherapy in type 2 diabetes, the glucose-lowering mechanisms of metformin remain to be fully clarified. Gut-derived modes of action, including suppression of bile acid reabsorption and a resulting increase in GLP-1 secretion, has been proposed. Objective: The aim of this study was to assess the GLP-1 secretory and gluco-metabolic effects of endogenously released bile, with and without concomitant single-dose administration of metformin in patients with type 2 diabetes...
August 18, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938422/prepubertal-development-of-gonadotropin-releasing-hormone-gnrh-neuron-activity-is-altered-by-sex-age-and-prenatal-androgen-exposure
#19
Eden A Dulka, Suzanne M Moenter
Gonadotropin-releasing hormone (GnRH) neurons regulate reproduction though pulsatile hormone release. Disruption of GnRH release as measured via LH pulses occurs in polycystic ovary syndrome (PCOS), and in young hyperandrogenemic girls. In adult prenatally androgenized (PNA) mice, which exhibit many aspects of PCOS, increased LH is associated with increased GnRH neuron action potential firing. How GnRH neuron activity develops over the prepubertal period and whether or not this is altered by sex or prenatal androgen treatment are unknown...
September 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938403/change-in-weight-and-body-mass-index-associated-with-all-cause-mortality-in-korea-a-nationwide-longitudinal-study
#20
Yang-Hyun Kim, Seon Mee Kim, Kyung-do Han, Jang-Won Son, Seong-Su Lee, Sang Woo Oh, Won-Young Lee, Soon Jib Yoo
Background: Many studies have reported conflicting evidence on the association between weight change and mortality. Objective: We investigated the association between weight change and subsequent all-cause mortality, using a large-scale population-based cohort from the National Health Insurance System health checkup data between 2005 and 2015. Methods: A total of 11,524,763 subjects aged over 20 years were included. Weight was measured every two years and weight change over 4 years was divided into eight categories, from weight loss ≥15% to weight gain ≥20%, for every 5% of weight change...
August 24, 2017: Journal of Clinical Endocrinology and Metabolism
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