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https://www.readbyqxmd.com/read/28513283/molecular-characterisation-of-australian-isolates-of-puccinia-graminis-f-sp-tritici-supports-long-term-clonality-but-also-reveals-cryptic-genetic-variation
#1
Jianping Zhang, Peng Zhang, Haydar Karaoglu, Robert F Park
Long term surveys of pathogenicity in Puccinia graminis f. sp. tritici (Pgt) in Australia have implicated mutation as a major source of virulence, at times leading to the demise of stem rust resistant wheat cultivars and substantial yield losses. Since 1925, these surveys have identified at least four occasions on which exotic isolates of Pgt appeared in Australia, with each acting as a founding isolate that gave rise sequentially to derivative pathotypes via presumed single step mutation. The current study aimed to examine the relationship between virulence and molecular patterns using SSR markers on selected isolates of Pgt collected in Australia during a 52 year period in order to propose an evolutionary pathway...
May 17, 2017: Phytopathology
https://www.readbyqxmd.com/read/28512697/utilization-of-genetic-counseling-after-direct-to-consumer-genetic-testing-findings-from-the-impact-of-personal-genomics-pgen-study
#2
Diane R Koeller, Wendy R Uhlmann, Deanna Alexis Carere, Robert C Green, J Scott Roberts
Direct-to-consumer personal genomic testing (DTC-PGT) results lead some individuals to seek genetic counseling (GC), but little is known about these consumers and why they seek GC services. We analyzed survey data pre- and post-PGT from 1026 23andMe and Pathway Genomics customers. Participants were mostly white (91%), female (60%), and of high socioeconomic status (80% college educated, 43% household income of ≥$100,000). After receiving PGT results, 43 participants (4%) made or planned to schedule an appointment with a genetic counselor; 390 (38%) would have used in-person GC had it been available...
May 16, 2017: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/28479736/in-vitro-wound-healing-effect-of-15-hydroxyprostaglandin-dehydrogenase-inhibitor-from-plant
#3
Sandeep Karna
BACKGROUND: Prostaglandins (PGs) have short existence in vivo because they are rapidly metabolized by NAD(+)-dependent 15-hydroxyprostaglandin dehydrogenase (15-PGDH) to 15-ketoprostaglandins. Inhibition of 15-PGDH causes elevated level of PGE2 in cellular system. It will be valuable for the therapeutic management of diseases requiring elevated PGE2 levels, like wound healing. OBJECTIVE: Ninety-eight plant samples were screened for the discovery of potent 15-PGDH inhibitor...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28464943/diet-and-exercise-changes-following-direct-to-consumer-personal-genomic-testing
#4
Daiva Elena Nielsen, Deanna Alexis Carere, Catharine Wang, J Scott Roberts, Robert C Green
BACKGROUND: The impacts of direct-to-consumer personal genomic testing (PGT) on health behaviors such as diet and exercise are poorly understood. Our investigation aimed to evaluate diet and exercise changes following PGT and to determine if changes were associated with genetic test results obtained from PGT. METHODS: Customers of 23andMe and Pathway Genomics completed a web-based survey prior to receiving PGT results (baseline) and 6 months post-results. Fruit and vegetable intake (servings/day), and light, vigorous and strength exercise frequency (days/week) were assessed...
May 2, 2017: BMC Medical Genomics
https://www.readbyqxmd.com/read/28412042/targeting-the-prostacyclin-pathway-beyond-pulmonary-arterial-hypertension
#5
REVIEW
Hélène Pluchart, Charles Khouri, Sophie Blaise, Matthieu Roustit, Jean-Luc Cracowski
Pioneering work demonstrated that an unstable substance isolated from rabbit and pig aortas could relax arterial smooth muscle and inhibit platelet aggregation. Since then, prostacyclin (prostaglandin I2, PGI2) and its analogs have raised much pharmacological interest. In this review we detail how the PGI2 signaling pathway is much more complex than was initially anticipated, involving peroxisome proliferator-activated receptors (PPARs), prostaglandin transporters (PGTs), and PGI2-thromboxane A2 (TXA2) receptor (IP TP) heterodimerization...
April 12, 2017: Trends in Pharmacological Sciences
https://www.readbyqxmd.com/read/28403814/divergent-and-convergent-modes-of-interaction-between-wheat-and-puccinia-graminis-f-sp-tritici-isolates-revealed-by-the-comparative-gene-co-expression-network-and-genome-analyses
#6
COMPARATIVE STUDY
William B Rutter, Andres Salcedo, Alina Akhunova, Fei He, Shichen Wang, Hanquan Liang, Robert L Bowden, Eduard Akhunov
BACKGROUND: Two opposing evolutionary constraints exert pressure on plant pathogens: one to diversify virulence factors in order to evade plant defenses, and the other to retain virulence factors critical for maintaining a compatible interaction with the plant host. To better understand how the diversified arsenals of fungal genes promote interaction with the same compatible wheat line, we performed a comparative genomic analysis of two North American isolates of Puccinia graminis f. sp...
April 12, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28393271/analysis-of-implantation-and-ongoing-pregnancy-rates-following-the-transfer-of-mosaic-diploid-aneuploid-blastocysts
#7
Elpida Fragouli, Samer Alfarawati, Katharina Spath, Dhruti Babariya, Nicoletta Tarozzi, Andrea Borini, Dagan Wells
Preimplantation genetic testing for aneuploidy (PGT-A) is widely used in IVF and aims to improve outcomes by avoiding aneuploid embryo transfers. Chromosomal mosaicism is extremely common in early development and could affect the efficacy of PGT-A by causing incorrect embryo classification. Recent innovations have allowed accurate mosaicism detection in trophectoderm samples taken from blastocysts. However, there is little data concerning the impact of mosaicism on viability, and the optimal clinical pathway for such embryos is unclear...
April 9, 2017: Human Genetics
https://www.readbyqxmd.com/read/28374280/does-personal-genome-testing-drive-service-utilization-in-an-adult-preventive-medicine-clinic
#8
Ny Hoang, Robin Hayeems, Jill Davies, Shuye Pu, Syed Wasim, Lea Velsher, James Aw, Sébastien Chénier, Dimitri J Stavropoulos, Riyana Babul-Hirji, Rosanna Weksberg, Cheryl Shuman
Personal genome testing (PGT) that assesses risk for common diseases may influence the use of preventive health services, but outcome data are limited. We aimed to assess health service utilization following PGT. We conducted a retrospective matched cohort study at an adult health clinic. Medical records of clients who pursued PGT at their comprehensive health assessment (CHA) over a 1-year period (N = 388) were reviewed and compared to age- and sex-matched clients who underwent CHA but not PGT (N = 388)...
April 3, 2017: Journal of Community Genetics
https://www.readbyqxmd.com/read/28160379/spearmint-r2r3-myb-transcription-factor-msmyb-negatively-regulates-monoterpene-production-and-suppresses-the-expression-of-geranyl-diphosphate-synthase-large-subunit-msgpps-lsu
#9
Vaishnavi Amarr Reddy, Qian Wang, Niha Dhar, Nadimuthu Kumar, Prasanna Nori Venkatesh, Chakravarthy Rajan, Deepa Panicker, Vishweshwaran Sridhar, Hui-Zhu Mao, Rajani Sarojam
Many aromatic plants, such as spearmint, produce valuable essential oils in specialized structures called peltate glandular trichomes (PGTs). Understanding the regulatory mechanisms behind the production of these important secondary metabolites will help design new approaches to engineer them. Here, we identified a PGT-specific R2R3-MYB gene, MsMYB, from comparative RNA-Seq data of spearmint and functionally characterized it. Analysis of MsMYB-RNAi transgenic lines showed increased levels of monoterpenes, and MsMYB-overexpressing lines exhibited decreased levels of monoterpenes...
February 3, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28117899/benefits-of-a-psychodynamic-group-therapy-pgt-model-for-treating-veterans-with-ptsd
#10
Ofir Levi, Yael Shoval-Zuckerman, Eyal Fruchter, Arie Bibi, Yair Bar-Haim, Ilan Wald
OBJECTIVE: To examine the effectiveness of a treatment model of psychodynamic group therapy (PGT) for combat Veterans with posttraumatic stress disorder (PTSD). METHOD: A total of 158 male Veterans with PTSD (mean age = 30.09 years) were assigned to 15 treatment groups of 7-13 patients each. PGT was a 1-year therapy, 1.5 hour, once-a-week sessions administered in the following stages: group building activities, differentiation of group members, intimacy building, and termination...
January 24, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28068660/direct-to-consumer-genetic-testing-user-motivations-decision-making-and-perceived-utility-of-results
#11
J Scott Roberts, Michele C Gornick, Deanna Alexis Carere, Wendy R Uhlmann, Mack T Ruffin, Robert C Green
BACKGROUND/AIMS: To describe the interests, decision making, and responses of consumers of direct-to-consumer personal genomic testing (DTC-PGT) services. METHODS: Prior to 2013 regulatory restrictions on DTC-PGT services, 1,648 consumers from 2 leading companies completed Web surveys before and after receiving test results. RESULTS: Prior to testing, DTC-PGT consumers were as interested in ancestry (74% very interested) and trait information (72%) as they were in disease risks (72%)...
January 10, 2017: Public Health Genomics
https://www.readbyqxmd.com/read/28047535/su-f-i-38-patient-organ-specific-dose-assessment-in-coronary-ct-angiograph-using-voxellaized-volume-dose-index-in-monte-carlo-simulation
#12
Mohammadi Gh Fallal, Alam N Riyahi, Gh Graily, R Paydar
PURPOSE: Clinical use of multi detector computed tomography(MDCT) in diagnosis of diseases due to high speed in data acquisition and high spatial resolution is significantly increased. Regarding to the high radiation dose in CT and necessity of patient specific radiation risk assessment, the adoption of new method in the calculation of organ dose is completely required and necessary. In this study by introducing a conversion factor, patient organ dose in thorax region based on CT image data using MC system was calculated...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28029661/multiple-drug-resistance-associated-protein-mrp4-exports-prostaglandin-e2-pge2-and-contributes-to-metastasis-in-basal-triple-negative-breast-cancer
#13
Tyler J Kochel, Jocelyn C Reader, Xinrong Ma, Namita Kundu, Amy M Fulton
Cyclooxygenase-2 (COX-2) and its primary enzymatic product, prostaglandin E2 (PGE2), are associated with a poor prognosis in breast cancer. In order to elucidate the factors contributing to intratumoral PGE2 levels, we evaluated the expression of COX-2/PGE2 pathway members MRP4, the prostaglandin transporter PGT, 15-PGDH (PGE2 metabolism), the prostaglandin E receptor EP4, COX-1, and COX-2 in normal, luminal, and basal breast cancer cell lines. The pattern of protein expression varied by cell line reflecting breast cancer heterogeneity...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28011884/pharmacogenetics-and-pathophysiology-of-cacna1s-mutations-in-malignant-hyperthermia
#14
REVIEW
Teresa A Beam, Emily F Loudermilk, David F Kisor
A review of the pharmacogenetics (PGt) and pathophysiology of calcium voltage-gated channel subunit alpha1 S (CACNA1S) mutations in malignant hyperthermia susceptibility type 5 (MHS5; MIM #60188) is presented. Malignant hyperthermia (MH) is a life-threatening hypermetabolic state of skeletal muscle usually induced by volatile, halogenated anesthetics and/or the depolarizing neuromuscular blocker succinylcholine. In addition to ryanodine receptor 1 (RYR1) mutations, several CACNA1S mutations are known to be risk factors for increased susceptibility to MH (MHS)...
February 1, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/27937091/personal-genomic-testing-for-cancer-risk-results-from-the-impact-of-personal-genomics-study
#15
Stacy W Gray, Sarah E Gollust, Deanna Alexis Carere, Clara A Chen, Angel Cronin, Sarah S Kalia, Huma Q Rana, Mack T Ruffin, Catharine Wang, J Scott Roberts, Robert C Green
Purpose Significant concerns exist regarding the potential for unwarranted behavior changes and the overuse of health care resources in response to direct-to-consumer personal genomic testing (PGT). However, little is known about customers' behaviors after PGT. Methods Longitudinal surveys were given to new customers of 23andMe (Mountain View, CA) and Pathway Genomics (San Diego, CA). Survey data were linked to individual-level PGT results through a secure data transfer process. Results Of the 1,042 customers who completed baseline and 6-month surveys (response rate, 71...
February 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27913634/comparative-analysis-highlights-variable-genome-content-of-wheat-rusts-and-divergence-of-the-mating-loci
#16
Christina A Cuomo, Guus Bakkeren, Hala Badr Khalil, Vinay Panwar, David Joly, Rob Linning, Sharadha Sakthikumar, Xiao Song, Xian Adiconis, Lin Fan, Jonathan M Goldberg, Joshua Z Levin, Sarah Young, Qiandong Zeng, Yehoshua Anikster, Myron Bruce, Meinan Wang, Chuntao Yin, Brent McCallum, Les J Szabo, Scot Hulbert, Xianming Chen, John P Fellers
Three members of the Puccinia genus, Pucciniatriticina (Pt), Pstriiformis f.sp. tritici (Pst), and Pgraminis f.sp. tritici (Pgt), cause the most common and often most significant foliar diseases of wheat. While similar in biology and life cycle, each species is uniquely adapted and specialized. The genomes of Pt and Pst were sequenced and compared to that of Pgt to identify common and distinguishing gene content, to determine gene variation among wheat rust pathogens, other rust fungi, and basidiomycetes, and to identify genes of significance for infection...
February 9, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/27890709/role-of-major-and-brain-specific-sgce-isoforms-in-the-pathogenesis-of-myoclonus-dystonia-syndrome
#17
Jianfeng Xiao, Satya R Vemula, Yi Xue, Mohammad M Khan, Francesca A Carlisle, Adrian J Waite, Derek J Blake, Ioannis Dragatsis, Yu Zhao, Mark S LeDoux
Loss-of-function mutations in SGCE, which encodes ε-sarcoglycan (ε-SG), cause myoclonus-dystonia syndrome (OMIM159900, DYT11). A "major" ε-SG protein derived from CCDS5637.1 (NM_003919.2) and a "brain-specific" protein, that includes sequence derived from alternative exon 11b (CCDS47642.1, NM_001099400.1), are reportedly localized in post- and pre-synaptic membrane fractions, respectively. Moreover, deficiency of the "brain-specific" isoform and other isoforms derived from exon 11b may be central to the pathogenesis of DYT11...
February 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/27855520/novel-technologies-emerging-for-preimplantation-genetic-diagnosis-and-preimplantation-genetic-testing-for-aneuploidy
#18
Karen Sermon
Preimplantation genetic diagnosis (PGD) was introduced as an alternative to prenatal diagnosis: embryos cultured in vitro were analysed for a monogenic disease and only disease-free embryos were transferred to the mother, to avoid the termination of pregnancy with an affected foetus. It soon transpired that human embryos show a great deal of acquired chromosomal abnormalities, thought to explain the low success rate of IVF - hence preimplantation genetic testing for aneuploidy (PGT-A) was developed to select euploid embryos for transfer...
January 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/27751827/response-of-gut-microbiota-and-inflammatory-status-to-bitter-melon-momordica-charantia-l-in-high-fat-diet-induced-obese-rats
#19
Juan Bai, Ying Zhu, Ying Dong
ETHNOPHARMACOLOGICAL RELEVANCE: Bitter melon (Momordica charantia L.) is rich in a variety of biologically active ingredients, and has been widely used in traditional Chinese medicine (TCM) to treat various diseases, including type 2 diabetes and obesity. AIM OF THE STUDY: We aimed to investigate how bitter melon powder (BMP) could affect obesity-associated inflammatory responses to ameliorate high-fat diet (HFD)-induced insulin resistance, and investigated whether its anti-inflammatory properties were effected by modulating the gut microbiota...
December 24, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27705664/genetic-mapping-of-stem-rust-resistance-to-puccinia-graminis-f-sp-tritici-race-trttf-in-the-canadian-wheat-cultivar-harvest
#20
Colin W Hiebert, Matthew N Rouse, Jayaveeramuthu Nirmala, Tom Fetch
Stem rust, caused by Puccinia graminis f. sp. tritici, is a destructive disease of wheat that can be controlled by deploying effective stem rust resistance (Sr) genes. Highly virulent races of P. graminis f. sp. tritici in Africa have been detected and characterized. These include race TRTTF and the Ug99 group of races such as TTKSK. Several Canadian and U.S. spring wheat cultivars, including the widely grown Canadian cultivar 'Harvest', are resistant to TRTTF. However, the genetic basis of resistance to TRTTF in Canadian and U...
February 2017: Phytopathology
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