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https://www.readbyqxmd.com/read/28938653/overexpression-of-emt-inducing-transcription-factors-as-a-potential-poor-prognostic-factor-for-hepatocellular-carcinoma-in-asian-populations-a-meta-analysis
#1
Tao Wan, Tianwei Zhang, Xiaoying Si, Yanming Zhou
BACKGROUND AND OBJECTIVES: The clinical relevance of epithelial to mesenchymal transition (EMT) in hepatocellular carcinoma (HCC) progression has been highlighted during the last decade. The zinc finger E-box binding homeobox (ZEB) family, the zinc-finger transcriptional repressor (SNAI) family, and the basic helix-loop-helix transcription factor (Twist) family, known as the prominent EMT-inducing transcription factors (EMT-TFs), played a crucial role in the process of EMT. Here, this meta-analysis aimed to evaluate the prognostic value of EMT-TFs high expression in patients with HCC after hepatectomy...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938611/dickkopf-1-induces-angiogenesis-via-vegf-receptor-2-regulation-independent-of-the-wnt-signaling-pathway
#2
Sung Hoon Choi, Hyemi Kim, Hyun Gyu Lee, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang-Hyub Han, Seung Up Kim
Tumor angiogenesis is essential for invasive tumor growth and metastasis. Dickkopf-1 (DKK-1), an antagonist of Wnt signaling, participates in tumor development and progression. We evaluated whether DKK-1 stimulation induces angiogenesis and the endothelial-mesenchymal transition (EnMT). Human umbilical vein endothelial cells (HUVECs) were stimulated with recombinant DKK-1 (rDDK-1) or conditioned medium from a culture of DKK-1-transfected 293 cells. Following stimulation, the expression levels of angiogenesis-related factors and EnMT related markers were determined by immunoblot assays...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938159/lunatic-fringe-and-p53-cooperatively-suppress-mesenchymal-stem-like-breast-cancer
#3
Wen-Cheng Chung, Shubing Zhang, Lavanya Challagundla, Yunyun Zhou, Keli Xu
Claudin-low breast cancer (CLBC) is a poor prognosis molecular subtype showing stemness and mesenchymal features. We previously discovered that deletion of a Notch signaling modulator, Lunatic Fringe (Lfng), in the mouse mammary gland induced a subset of tumors resembling CLBC. Here we report that deletion of one copy of p53 on this background not only accelerated mammary tumor development but also led to a complete penetrance of the mesenchymal stem-like phenotype. All mammary tumors examined in the Lfng/p53 compound mutant mice displayed a mesenchymal/spindloid pathology...
September 19, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28937270/feasibility-of-free-breathing-lung-mri-for-radiotherapy-using-non-cartesian-k-space-acquisition-schemes
#4
Shivani Kumar, Robba Rai, Alto Stemmer, Sonal Josan, Lois Holloway, Shalini Vinod, Daniel Moses, Gary Liney
OBJECTIVES: To test a free breathing MRI protocol for anatomical and functional assessment during lung cancer radiotherapy by assessing two non-cartesian acquisition schemes based on a T1W 3D gradient recall echo sequence: (i) stack-of stars (StarVIBE) and (ii) spiral (SpiralVIBE) trajectories Methods: MR images on five healthy volunteers were acquired on a wide bore 3T scanner (Skyra, Siemens Healthcare). Anatomical image quality was assessed on: (1) free breathing (StarVIBE), (2) the standard clinical sequence (VIBE) acquired in a 20 second compliant breath-hold and (3) 20 second non-complaint breath-hold...
September 13, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28936576/improvement-of-continuous-subcutaneous-insulin-infusion-on-patients-with-type-2-diabetes-mellitus-by-3-dimensional-speckle-tracking-echocardiography
#5
Hong-Xia Luo, Xiao-Ling Zhou, Hong-Ju Kou, Xian-Wei Ni, Qing Wu, Chun-Peng Zou, Dao-Zhu Wu, Yong-Fang Liu
Three-dimensional speckle tracking echocardiography (3D-STE) was used to evaluate the improvement of continuous subcutaneous insulin infusion on the left ventricular (LV) systolic function of patients with type 2 diabetes mellitu (T2DM). We recruited T2DM patients (38 cases, diabetic group) and healthy volunteers (35 cases, control group) to collect LV full volume imaging. TomTec software was used for calculating LV global longitudinal strain (LVGLS), global circumferential strain (LVGCS), peak twist (LVTW), peak apical rotation (LVPAR), ejection fraction (LVEF), and torsion (LVT)...
September 21, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28935631/cultural-crossings-of-care-an-appeal-to-the-medical-humanities
#6
Julia Kristeva, Marie Rose Moro, John Ødemark, Eivind Engebretsen
Modern medicine is confronted with cultural crossings in various forms. In facing these challenges, it is not enough to simply increase our insight into the cultural dimensions of health and well-being. We must, more radically, question the conventional distinction between the 'objectivity of science' and the 'subjectivity of culture'. This obligation creates an urgent call for the medical humanities but also for a fundamental rethinking of their grounding assumptions.Julia Kristeva (JK) has problematised the biomedical concept of health through her reading of the anthropogony of Cura (Care), who according to the Roman myth created man out of a piece of clay...
September 21, 2017: Medical Humanities
https://www.readbyqxmd.com/read/28934632/in-vivo-biomechanical-behavior-of-the-trapeziometacarpal-joint-in-healthy-and-osteoarthritic-subjects
#7
Priscilla D'Agostino, Benjamin Dourthe, Faes Kerkhof, G Harry Van Lenthe, Filip Stockmans, Evie E Vereecke
BACKGROUND: The contact biomechanics of the trapeziometacarpal joint have been investigated in several studies. However, these led to conflicting results and were mostly performed in vitro. The purpose of this study was to provide further insight on the contact biomechanics of the trapeziometacarpal joint by in vivo assessment of healthy and osteoarthritic subjects. METHODS: The hands of 16 healthy women and 6 women with trapeziometacarpal osteoarthritis were scanned in positions of maximal thumb extension, flexion, abduction and adduction during three isometric tasks (lateral key pinch, power grasp and jar twist) and in thumb rest posture (relaxed neutral)...
September 12, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28933826/a-modern-twist-to-a-classic-synthetic-route-ph3bi-based-redox-transmetalation-protolysis-rtp-for-the-preparation-of-barium-metalorganic-species
#8
Yuriko Takahashi, Anna O'Brien, Glen B Deacon, Philip C Andrews, Melanie Wolf, Ana Torvisco, Miriam M Gillett-Kunnath, Karin Ruhlandt-Senge
This paper reports advances in redox transmetalation/protolysis (RTP) utilizing the readily available Ph3Bi for the synthesis of a series of barium metal-organic species. On the basis of easily available starting materials, an easy one-pot procedure, and workup, we have obtained BaL2 compounds (L = bis(trimethylsilyl)amide, phenyl(trimethylsilyl)amide, pentamethylcyclopentadienide, fluorenide, 2,6-di-isopropylphenolate, and 3,5-diphenylpyrazolate) quantitatively by sonication of an excess of barium metal with triphenylbismuth and HL in perdeuterotetrahydrofuran, as established by NMR measurements...
September 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28933436/stereodivergent-synthesis-with-a-programmable-molecular-machine
#9
Salma Kassem, Alan T L Lee, David A Leigh, Vanesa Marcos, Leoni I Palmer, Simone Pisano
It has been convincingly argued that molecular machines that manipulate individual atoms, or highly reactive clusters of atoms, with Ångström precision are unlikely to be realized. However, biological molecular machines routinely position rather less reactive substrates in order to direct chemical reaction sequences, from sequence-specific synthesis by the ribosome to polyketide synthases, where tethered molecules are passed from active site to active site in multi-enzyme complexes. Artificial molecular machines have been developed for tasks that include sequence-specific oligomer synthesis and the switching of product chirality, a photo-responsive host molecule has been described that is able to mechanically twist a bound molecular guest, and molecular fragments have been selectively transported in either direction between sites on a molecular platform through a ratchet mechanism...
September 20, 2017: Nature
https://www.readbyqxmd.com/read/28932692/patient-with-antiphospholipid-syndrome-presenting-with-testicular-torsion-like-symptoms
#10
Arnav Srivastava, Joan Ko, Joy Ogunsile, Alison Moliterno, William H Westra, Alice Semerjian
Testicular torsion, a urological emergency, occurs due to absence of testicular blood supply secondary to a mechanical twist of the spermatic cord. The authors describe a 28-year-old male who presented with torsion symptoms, first in the left testicle and four months later in the right testicle. Doppler ultrasound and surgical exploration revealed disruption of blood flow but no evidence of spermatic cord twisting. Additionally, physical examination findings at the time of presentation were inconsistent with testicular torsion...
November 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28932466/crystal-structure-of-e-furan-2-carbaldehyde-o-benzoyloxime
#11
Yousef M Hijji, Rajeesha Rajan, Said Mansour, Hamdi Ben Yahia
In the title compound, C12H9NO3, the benzoate and furan rings are almost coplanar, making a dihedral angle of 11.68 (9)°. The twist angle between the -COO group and the benzene ring is only 2.79 (16)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, forming chains along [100]. The mol-ecules stack in a herringbone fashion and inversion-related chains are linked by offset π-π inter-actions [inter-centroid distance = 3.931 (1) Å], forming ribbons propagating along the a-axis direction...
September 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28932447/crystal-structure-of-hexa-methyl-4-4-4-4-4-4-1-3-5-2%C3%AE-5-4%C3%AE-5-6%C3%AE-5-tri-aza-triphosphinine-2-2-4-4-6-6-hexa-yl-hexa-kis-oxy-hexa-benzoate
#12
Jing Zhu, Guo Hui Hou, Qian Li, Fu Wei Zheng, Hong Liang Wei, Hui Juan Chu, Gang Wang, Juan He, Ling Bo Qu
The title compound, C48H42N3O18P3, achieved in a two-step synthesis, comprises a cyclo-triphosphazene core and six 4-meth-oxy-carbonyl-phen-oxy groups. Each P atom is attached to two substituents located up and down with respect to the plane of the phosphazene ring, the central P3N3 ring having a twist-boat conformation. The three O/P/O planes and five of the six benzene rings are nearly perpendicular to the mean plane through the phosphazene ring [dihedral angles = 82.98 (8)-88.92 (8)°], while the remaining benzene ring forms a dihedral angle of 25...
July 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28932440/ethyl-2-4-meth-oxy-phen-yl-6-oxa-3-aza-bicyclo-3-1-0-hexane-3-carboxyl-ate-crystal-structure-and-hirshfeld-analysis
#13
Julio Zukerman-Schpector, Fabricia H Sugiyama, Ariel L L Garcia, Carlos Roque D Correia, Mukesh M Jotani, Edward R T Tiekink
The title compound, C14H17NO4, features an epoxide-O atom fused to a pyrrolidyl ring, the latter having an envelope conformation with the N atom being the flap. The 4-meth-oxy-phenyl group is orthogonal to [dihedral angle = 85.02 (6)°] and lies to the opposite side of the five-membered ring to the epoxide O atom, while the N-bound ethyl ester group (r.m.s. deviation of the five fitted atoms = 0.0187 Å) is twisted with respect to the ring [dihedral angle = 17.23 (9)°]. The most prominent inter-actions in the crystal are of the type methine-C-H⋯O(carbon-yl) and these lead to the formation of linear supra-molecular chains along the c axis; weak benzene-C-H⋯O(epoxide) and methine-C-H⋯O(meth-oxy) inter-actions connect these into a three-dimensional architecture...
July 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28932439/crystallographic-and-spectroscopic-characterization-of-5-chloro-pyridine-2-3-di-amine
#14
Aron Sulovari, Joseph M Tanski
The two ortho-amino groups of the title compound, C5H6ClN3, twist out of the plane of the mol-ecule to minimize intra-molecular inter-action between the amino hydrogen atoms. In the crystal, the amino groups and the pyridine N atom engage in inter-molecular hydrogen bonding. The mol-ecules pack into spiral hydrogen-bonded columns with offset face-to-face π-stacking.
July 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28932420/crystal-structures-of-two-2-3-di-ethyl-naphtho-2-3-g-quinoxaline-6-11-dione-derivatives
#15
Craig M Forsyth, Craig L Francis
Two new 5,12-disubstituted 2,3-di-ethyl-naphtho-[2,3-g]quinoxaline-6,11-dione compounds were readily synthesized from the commercial dye quinizarin. For 2,3-diethyl-5,12-di-hydroxy-naphtho-[2,3-g]quinoxaline-6,11-dione, (II), C20H16N2O4, the mol-ecule displays a near planar conformation and both hy-droxy groups participate in intra-molecular O-H⋯O(carbon-yl) hydrogen bonds. In the crystal, π-π ring inter-actions [minimum ring centroid separation = 3.5493 (9) Å] form stacks of co-planar mol-ecules down the c axis, while only minor inter-molecular C-H⋯O inter-actions are present...
July 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28932066/plica-polonica-in-a-patient-on-chemotherapy-a-case-report-with-review-of-literature
#16
Savera Gupta, Ramesh Kumar, Anita Vijay, Suresh Kumar Jain
Plica polonica (plica neuropathica) is an uncommon entity characterized by irreversible twisting and matting of hair resulting in a hard impermeable mass of keratin. Although the exact mechanism is not fully understood, it has been attribute to longitudinal splitting or weathering of hair shaft due to vigorous friction and frequent use of harsh shampoos and harsh cleansers and/or due to keeping long hair with poor hair care or neglect, parasitic infection. We describe an unusual case of plica polonica occurring in a patient of lung adenocarcinoma on chemotherapy and review the literature...
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28932063/-castor-oil-the-culprit-of-acute-hair-felting
#17
V Ramya Maduri, Ahalya Vedachalam, S Kiruthika
Acute hair felting is a rare disorder of scalp hair. In this condition, the hair becomes twisted, entangled as a hard stony mass resembling a bird's nest. Sudden hair matting has been reported earlier in the literature after vigorous use of chemical and herbal shampoos. Plica polonica is a patchy area of hair matting occurring in due course of time in neglected hair or underlying psychiatric illness. This case is interesting as the whole scalp hair matted immediately after using coconut oil and castor oil following washing...
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28929134/cooperative-deformations-of-periodically-patterned-hydrogels
#18
Zhi Jian Wang, Chao Nan Zhu, Wei Hong, Zi Liang Wu, Qiang Zheng
Nature has shown elegant paradigms of smart deformation, which inspired biomimetic systems with controllable bending, folding, and twisting that are significant for the development of soft electronics and actuators. Complex deformations are usually realized by additively incorporating typical structures in selective domains with little interaction. We demonstrate the cooperative deformations of periodically patterned hydrogel sheets, in which neighboring domains mutually interact and cooperatively deform. Nonswelling disc gels are periodically positioned in a high-swelling gel...
September 2017: Science Advances
https://www.readbyqxmd.com/read/28928871/twisted-gastrulation-bmp-signaling-modulator-1-regulates-papillary-thyroid-cancer-cell-motility-and-proliferation
#19
Shujun Xia, Ri Ji, Yongmin Xu, Xiaofeng Ni, Yijie Dong, Weiwei Zhan
Bone morphogenetic proteins (BMPs) are growth factors that have important functions in cell proliferation, migration and differentiation. To date, BMP pathway activation has been found in multiple human tumors and is associated with enhanced malignant tumor growth and metastasis. BMP activity is tightly regulated by a family of soluble extracellular secreted BMP modulators. Twisted gastrulation BMP signaling modulator 1 (TWSG1) is a direct BMP regulator that is required for the full signaling activity of BMPs...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927769/spontaneous-healing-of-a-tear-of-an-anterior-cruciate-ligament-graft-a-case-report
#20
Natalie Yu Yi Ng, Barry Wei Loong Tan, Lingaraj Krishna
BACKGROUND: Almost 30% of young athletic patients sustain a second anterior cruciate ligament (ACL) injury within 24months of their ACL reconstruction and returning to pivoting sports. Most patients with high athletic demand and significant anteroposterior instability often require ACL revision surgery to restore their pre-injury activity levels. CASE REPORT: A 24-year old gentleman ruptured his hamstring tendon autograft during a twisting injury seven months after his ACL reconstruction...
September 16, 2017: Knee
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