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https://www.readbyqxmd.com/read/28641300/prenatal-diagnosis-of-dextrocardia-with-complex-congenital-heart-disease-using-fetal-intelligent-navigation-echocardiography-fine-and-a-literature-review
#1
Lami Yeo, Suchaya Luewan, Dor Markush, Navleen Gill, Roberto Romero
Fetal dextrocardia is a type of cardiac malposition where the major axis from base to apex points to the right side. This condition is usually associated with a wide spectrum of complex cardiac defects. As a result, dextrocardia is conceptually difficult to understand and diagnose on prenatal ultrasound. The advantage of four-dimensional sonography with spatiotemporal image correlation (STIC) is that this modality can facilitate fetal cardiac examination. A novel method known as fetal intelligent navigation echocardiography (FINE) allows automatic generation of nine standard fetal echocardiography views in normal hearts by applying intelligent navigation technology to STIC volume datasets...
June 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28640985/the-interaction-between-progranulin-and-prosaposin-is-mediated-by-granulins-and-the-linker-region-between-saposin-b-and-c
#2
Xiaolai Zhou, Peter M Sullivan, Lirong Sun, Fenghua Hu
The frontotemporal lobar degeneration (FTLD) protein progranulin (PGRN) is essential for proper lysosomal function. PGRN localizes in the lysosomal compartment within the cell. Prosaposin (PSAP), the precursor of lysosomal saposin activators (saposin A, B, C, D), physically interacts with PGRN. Previously we have shown that PGRN and PSAP facilitate each other's lysosomal trafficking. Here we report that the interaction between PSAP and PGRN requires the linker region of saposin B and C (BC linker). PSAP protein with the BC linker mutated fails to interact with PGRN and target PGRN to lysosomes in the biosynthetic and endocytic pathways...
June 22, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28640983/multiplexed-crispr-cas9-mediated-metabolic-engineering-of-%C3%AE-aminobutyric-acid-levels-in-solanum-lycopersicum
#3
Rui Li, Ran Li, Xindi Li, Daqi Fu, Benzhong Zhu, Huiqin Tian, Yunbo Luo, Hongliang Zhu
In recent years, the type II CRISPR system has become a widely used and robust technique to implement site-directed mutagenesis in a variety of species including model and crop plants. However, few studies manipulated metabolic pathways in plants using the CRISPR system. Here, we introduced the pYLCRISPR/Cas9 system with one or two single-site guide RNAs to target the tomato phytoene desaturase gene. An obvious albino phenotype was observed in T0 regenerated plants, and more than 61% of the desired target sites were edited...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640982/mechanisms-of-sphingosine-1-phosphate-mediated-vasoconstriction-of-rat-afferent-arterioles
#4
Zhengrong Guan, Fuchenchu Wang, Xiangqin Cui, Edward W Inscho
AIM: Sphingosine-1-phosphate (S1P) influences resistance vessel function and is implicated in renal pathological processes. Previous studies revealed that S1P evoked potent vasoconstriction of the preglomerular microvasculature, but the underlying mechanisms remain incompletely defined. We postulated that S1P-mediated preglomerular microvascular vasoconstriction involves activation of voltage-dependent L-type calcium channels (L-VDCC) and the rho/rho kinase pathway. METHODS: Afferent arteriolar reactivity was assessed in vitro using the blood-perfused rat juxtamedullary nephron preparation and diameter was measured during exposure to physiological and pharmacological agents...
June 22, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28640975/nac-transcription-factor-jungbrunnen1-enhances-drought-tolerance-in-tomato
#5
Venkatesh P Thirumalaikumar, Vikas Devkar, Nikolay Mehterov, Shawkat Ali, Rengin Ozgur, Ismail Turkan, Bernd Mueller-Roeber, Salma Balazadeh
Water deficit (drought stress) massively restricts plant growth and the yield of crops; reducing the deleterious effects of drought is therefore of high agricultural relevance. Drought triggers diverse cellular processes including the inhibition of photosynthesis, the accumulation of cell-damaging reactive oxygen species, and gene expression reprogramming, besides others. Transcription factors (TF) are central regulators of transcriptional reprogramming and expression of many TF genes is affected by drought, including members of the NAC family...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640974/resistance-to-powdery-mildew8-1-boosts-pattern-triggered-immunity-against-multiple-pathogens-in-arabidopsis-and-rice
#6
Yan Li, Yong Zhang, Qing-Xia Wang, Ting-Ting Wang, Xiao-Long Cao, Zhi-Xue Zhao, Sheng-Li Zhao, Yong-Ju Xu, Zhi-Yuan Xiao, Jin-Lu Li, Jing Fan, Hui Yang, Fu Huang, Shunyuan Xiao, Wen-Ming Wang
The Arabidopsis gene RESISTANCE TO POWDERY MILDEW8.1 (RPW8.1) confers resistance to virulent fungal and oomycete pathogens that cause powdery mildew and downy mildew, respectively. However, the underlying mechanism remains unclear. Here, we show that ectopic expression of RPW8.1 boosts pattern-triggered immunity (PTI) resulting in enhanced resistance against different pathogens in both Arabidopsis and rice. In Arabidopsis, transcriptome analysis revealed that ectopic expression of RPW8.1-YFP constitutively up-regulates expression of many pathogen-associated molecular pattern-(PAMP-) inducible genes...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640973/production-of-red-flowered-oilseed-rape-via-the-ectopic-expression-of-orychophragmus-violaceus-ovpap2
#7
Wenqin Fu, Daozong Chen, Qi Pan, Fengfeng Li, Zhigang Zhao, Xianhong Ge, Zaiyun Li
Oilseed rape (Brassica napus L.), which has yellow flowers, is both an important oil crop and a traditional tourism resource in China, whereas the Orychophragmus violaceus, which has purple flowers, likely possesses a candidate gene or genes to alter the flower color of oilseed rape. A previously established B. napus line has a particular pair of O. violaceus chromosomes (M4) and exhibits slightly red petals. In this study, the transcriptomic analysis of M4, B. napus (H3), and O. violaceus with purple petals (OvP) and with white petals (OvW) revealed that most anthocyanin biosynthesis genes were up-regulated in both M4 and OvP...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640969/control-of-breathing-and-ventilatory-acclimatization-to-hypoxia-in-deer-mice-native-to-high-altitudes
#8
Catherine M Ivy, Graham R Scott
AIM: We compared the control of breathing and heart rate by hypoxia between high- and low-altitude populations of Peromyscus mice, to help elucidate the physiological specializations that help high-altitude natives cope with O2 limitation. METHODS: Deer mice (P. maniculatus) native to high altitude and congeneric mice native to low altitude (P. leucopus) were bred in captivity at sea level. The F1 progeny of each population were raised to adulthood and then acclimated to normoxia or hypobaric hypoxia (12 kPa, simulating hypoxia at ~4300 m) for 5 months...
June 22, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28640967/acta-physiologica-award-outperforming-original-articles-from-2015-2017
#9
EDITORIAL
P B Persson
Recently we announced what maybe the highest award in scientific publishing, the Acta Physiologica Award. The Scandinavian Physiological Society, as the owner of Acta Physiologica, sponsors the prize in recognition of your efforts that have increased the journal's performance. Here is an update of some outstanding original articles from 2015 and 2017. This article is protected by copyright. All rights reserved.
June 22, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28640964/targeted-mutagenesis-in-tetraploid-switchgrass-panicum-virgatum-l-using-crispr-cas9
#10
Yang Liu, Paul Merrick, Zhengzhi Zhang, Chonghui Ji, Bing Yang, Shui-Zhang Fei
The CRISPR/Cas9 system has become a powerful tool for targeted mutagenesis. Switchgrass (Panicum virgatum L.) is a high yielding perennial grass species that has been designated as a model biomass crop by the U.S. Department of Energy. The self infertility and high ploidy level make it difficult to study gene function or improve germplasm. To overcome these constraints, we explored the feasibility of using CRISPR/Cas9 for targeted mutagenesis in a tetraploid cultivar 'Alamo' switchgrass. We first developed a transient assay by which a non-functional green fluorescent protein gene containing a 1 bp frameshift insertion in its 5' coding region was successfully mutated by a Cas9/sgRNA complex resulting in its restored function...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640960/ferulic-acid-alleviates-symptoms-of-preeclampsia-in-rats-by-upregulating-vascular-endothelial-growth-factor
#11
Weiyan Gong, Jipeng Wan, Qing Yuan, Quanzhan Man, Xiaojing Zhang
Preeclampsia is a complication affecting pregnant women worldwide, which leads to maternal and fetal morbidity and mortality. In this study, we evaluated the efficacy of ferulic acid (FA) on an N(ω) -nitro-L-arginine methyl ester hydrochloride (L-NAME) induced rat model of preeclampsia. L-NAME was administered to pregnant rats to induce preeclampsia. 48 rats were divided into three experimental groups (n=16 each): control group, preeclampsia group and preeclampsia with FA treatment (preeclampsia+FA). Physiological characteristics such as urine volume, total urine protein and blood pressure were assessed...
June 22, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28640957/restoration-of-cutaneous-pigmentation-by-transplantation-to-mice-of-isogeneic-human-melanocytes-in-dermal-epidermal-engineered-skin-substitutes
#12
Steven T Boyce, Christopher M Lloyd, Mark C Kleiner, Viki B Swope, Zalfa Abdel-Malek, Dorothy M Supp
Autologous engineered skin substitutes (ESS) containing melanocytes (hM) may restore pigmentation, and photoprotection after grafting to full-thickness skin wounds. In the current study, normal hM were isolated from discard skin, propagated with or without tyrosinase inhibitors, cryopreserved, recovered into culture, and added to ESS (ESS-P) before transplantation. ESS-P were incubated in either UCMC160/161 or UCDM1 medium, scored for hM densities, and grafted to mice. The results showed that: sufficient hM can be propagated to expand donor tissue by 100-fold; incubation of hM in tyrosinase inhibitors reduced pigment levels but did not change hM recovery after cryopreservation; hM densities in ESS-P were greater after incubation in UCDM1 than UCMC160 medium; hM were localized to the dermal-epidermal junction of ESS-P; and UCDM1 medium promoted earlier pigment distribution and density...
June 22, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28640955/in-solution-antibody-harvesting-with-a-plant-produced-hydrophobin-protein-a-fusion
#13
Katri Kurppa, Lauri Reuter, Anneli Ritala, Markus Linder, Jussi Joensuu
Purification is a bottleneck and a major cost factor in the production of antibodies. We set out to engineer a bi-functional fusion protein from two building blocks, Protein A and a hydrophobin, aiming at low-cost and scalable antibody capturing in solutions. Immunoglobulin-binding Protein A is widely used in affinity-based purification. The hydrophobin fusion tag, on the other hand, has been shown to enable purification by two-phase separation. Protein A was fused to two different hydrophobin tags, HFBI or II, and expressed transiently in Nicotiana benthamiana...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640950/development-of-a-monte-carlo-multiple-source-model-for-inclusion-in-a-dose-calculation-auditing-tool
#14
Austin M Faught, Scott E Davidson, Jonas Fontenot, Stephen F Kry, Carol Etzel, Geoffrey S Ibbott, David S Followill
PURPOSE: The Imaging and Radiation Oncology Core Houston (IROC-H) (formerly the Radiological Physics Center) has reported varying levels of agreement in their anthropomorphic phantom audits. There is reason to believe one source of error in this observed disagreement is the accuracy of the dose calculation algorithms and heterogeneity corrections used. To audit this component of the radiotherapy treatment process an independent dose calculation tool is needed. METHODS: Monte Carlo multiple source models for Elekta 6MV and 10MV therapeutic x-ray beams were commissioned based on measurement of central axis depth dose data for a 10 x 10 cm(2) field size and dose profiles for a 40 x 40 cm(2) field size...
June 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28640948/high-level-%C3%AE-iii-tubulin-overexpression-occurs-in-most-head-and-neck-cancers-but-is-unrelated-to-clinical-outcome
#15
Julie C Nienstedt, Alexander Gröbe, Till Clauditz, Ronald Simon, Adrian Muenscher, Rainald Knecht, Guido Sauter, Christoph Moebius, Marco Blessmann, Max Heiland, Christina Pflug
BACKGROUND: βIII-tubulin (TUBB3) is an isotype of microtubules, which are involved in crucial cellular roles including maintenance of cell shape, intracellular transport, and mitosis. Overexpression of TUBB3 was found to be associated with poor prognosis and resistance to tubulin-binding drugs and in several solid tumors including head and neck squamous cell carcinomas (HNSCC). Considering the potential high importance of a prognostic biomarker in these cancers, the present study aimed to investigate the clinical relevance of immunohistochemical TUBB3 expression in HNSCC...
June 22, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28640947/clinico-molecular-analysis-of-eleven-patients-with-hermansky-pudlak-type-5-syndrome-a-mild-form-of-hps
#16
Vincent Michaud, Eulalie Lasseaux, Claudio Plaisant, Alain Verloes, Yaumara Perdomo-Trujillo, Christian Hamel, Nursel H Elcioglu, Bart Leroy, Josseline Kaplan, Pierre-Simon Jouk, Didier Lacombe, Patricia Fergelot, Fanny Morice-Picard, Benoit Arveiler
Hermansky-Pudlak syndrome (HPS), first described in 1959, is a rare form of syndromic oculocutaneous albinism associated with bleeding diathesis and in some cases pulmonary fibrosis and granulomatous colitis. All 10 HPS types are caused by defects in vesicle trafficking of lysosomes-related organelles (LRO) proteins. The HPS5 protein associates with HPS3 and HPS6 to form the Biogenesis of Lysosome-related Organelles Complex-2 (BLOC-2). Here we report the clinical and genetic data of 11 HPS-5 patients analyzed in our laboratory...
June 22, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28640946/physicians-non-uniform-approach-to-prescribing-drugs-to-older-patients-a-qualitative-study
#17
Line Due Christensen, Janne Petersen, Ove Andersen, Susanne Kaae
Multi-morbidity and polypharmacy are common in older patients and increase their susceptibility to adverse drug events and hospitalizations. Rational drug prescription is critical, however, little is known about physicians' perspectives on how to prescribe drugs for older patients. The aim of this study was to explore physicians' approach to prescribe drugs to older patients, including identifying the drugs that physicians perceive to be risk drugs for older patients and comparing them with established lists of potentially inappropriate medications...
June 22, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28640945/production-of-human-vitronectin-in-nicotiana-benthamiana-using-the-inpact-hyper-expression-platform
#18
Benjamin Dugdale, Maiko Kato, Pradeep Deo, Manuel Plan, Mark Harrison, Robyn Lloyd, Terry Walsh, Robert Harding, James Dale
Human vitronectin (hVN) is a glycoprotein that functions as a cell adhesion molecule and a regulator of coagulation in blood plasma and the extracellular matrix. In vitro, hVN is added to serum-free media in order to promote the adhesion of animal cells to tissue culture surfaces and the proliferation of undifferentiated stem cells. Here, we report the production of hVN in Nicotiana benthamiana using the inducible In Plant Activation (INPACT) hyper-expression platform. N. benthamiana plants were transformed with an INPACT expression cassette encoding hVN, and both the Tobacco yellow dwarf virus Rep/RepA activator and Tomato bushy stunt virus p19 gene under the transcriptional control of the ethanol-inducible AlcR:alcA gene switch...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640942/polyfunctional-response-by-immtac-imcgp100-redirected-cd8-and-cd4-t-cells
#19
Caroline Boudousquie, Giovanna Bossi, Jacob M Hurst, Karolina A Rygiel, Bent K Jakobsen, Namir J Hassan
The success of immune system based cancer therapies depends on a broad immune response engaging a range of effector cells and mechanisms. Immune mobilising monoclonal TCRs against cancer (ImmTAC(™) molecules, fusion proteins consisting of a soluble, affinity enhanced TCR and an anti-CD3 scFv Ab) were previously shown to redirect CD8(+) and CD4(+) T cells against tumours. Here we present evidence that IMCgp100 (ImmTAC recognising a peptide derived from the melanoma-specific protein, gp100, presented by HLA-A*0201) efficiently redirects and activates effector and memory cells from both CD8(+) and CD4(+) repertoires...
June 22, 2017: Immunology
https://www.readbyqxmd.com/read/28640941/phox2b-reliably-distinguishes-neuroblastoma-among-small-round-blue-cell-tumors
#20
Yin P Hung, John P Lee, Andrew M Bellizzi, Jason L Hornick
AIMS: Neuroblastoma shows considerable histologic overlap with other small round blue cell tumors. PHOX2B, a transcription factor essential for autonomic nervous system development, has been reported as an immunohistochemical marker for neuroblastoma. The purpose of this study was to validate the specificity and diagnostic utility of PHOX2B for peripheral neuroblastic tumors. METHODS AND RESULTS: We evaluated 240 cases (133 in whole-tissue sections; 107 in tissue microarrays), including 76 peripheral neuroblastic tumors [median age 2 years; including 4 adults] and 164 other tumors: 44 Wilms tumors; 20 Ewing sarcomas; 10 each CIC-rearranged round cell sarcomas, poorly differentiated synovial sarcomas, lymphoblastic lymphomas, alveolar rhabdomyosarcomas, embryonal rhabdomyosarcomas, mesenchymal chondrosarcomas, Merkel cell carcinomas, olfactory neuroblastomas, and melanomas; 5 each NUT midline carcinomas and desmoplastic small round cell tumors...
June 22, 2017: Histopathology
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