keyword
MENU ▼
Read by QxMD icon Read
search

Revisit

keyword
https://www.readbyqxmd.com/read/28742519/45-x-46-xy-ovotesticular-disorder-of-sex-development-revisited-undifferentiated-gonadal-tissue-may-be-mistaken-as-ovarian-tissue
#1
Juliana Gabriel Ribeiro de Andrade, Liliana Aparecida Lucci De Angelo Andrade, Gil Guerra-Junior, Andréa Trevas Maciel-Guerra
BACKGROUND: The 45,X/46,XY karyotype has been associated with mixed gonadal dysgenesis (MGD) and ovotesticular disorder of sex development (DSD). Our aim was to revise the diagnosis of ovotesticular DSD in two patients in the context of a retrospective study of 45,X/46,XY subjects with genital ambiguity. CASE PRESENTATION: Patient 1 had a left streak gonad; the right one was considered an ovotestis. Patient 2 had a right testis; the left gonad was considered an ovary...
July 25, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28740976/a-kinetic-study-of-the-ch2oo-criegee-intermediate-reaction-with-so2-h2o-2-ch2i2-and-i-atoms-using-oh-laser-induced-fluorescence
#2
Yiqiang Liu, Fenghua Liu, Siyue Liu, Dongxu Dai, Wenrui Dong, Xueming Yang
The OH laser induced fluorescence method was used to study the kinetics of CH2OO reacting with SO2, (H2O)2, CH2I2 and I atoms. Decay of CH2OO is not strictly first-order since its self-reaction is rapid. With this consideration, we derived the rate coefficient of CH2OO + SO2/(H2O)2/CH2I2/I taking into account the contribution of the CH2OO self-reaction. For the CH2OO + SO2 reaction, the rate coefficient is measured to be (3.88 ± 0.13) × 10(-11) cm(3) molecule(-1) s(-1) at 10 Torr, which agrees very well with a previously reported value obtained by directly monitoring CH2OO using the UV absorption method with the CH2OO self-reaction considered...
July 25, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28740766/early-cleft-lip-repair-revisited-a-safe-and-effective-approach-utilizing-a-multidisciplinary-protocol
#3
Jeff A Hammoudeh, Thomas A Imahiyerobo, Fan Liang, Artur Fahradyan, Leo Urbinelli, Jennifer Lau, Marla Matar, William Magee, Mark Urata
BACKGROUND: The optimal timing for cleft lip repair has yet to be established. Advances in neonatal anesthesia, along with a growing body of literature, suggesting benefits of earlier cleft lip and nasal repair, have set the stage for a reexamination of current practices. METHODS: In this prospective study, cleft lip and nasal repair occurred on average at 34.8 days (13-69 days). Nasal correction was achieved primarily through molding the nasal cartilage without the placement of nasal sutures at the time of repair...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28739511/revisiting-venom-of-the-sea-anemone-stichodactyla-haddoni-omics-techniques-reveal-the-complete-toxin-arsenal-of-a-well-studied-sea-anemone-genus
#4
Bruno Madio, Eivind A B Undheim, Glenn F King
More than a century of research on sea anemone venoms has shown that they contain a diversity of biologically active proteins and peptides. However, recent omics studies have revealed that much of the venom proteome remains unexplored. We used, for the first time, a combination of proteomic and transcriptomic techniques to obtain a holistic overview of the venom arsenal of the well-studied sea anemone Stichodactyla haddoni. A purely search-based approach to identify putative toxins in a transcriptome from tentacles regenerating after venom extraction identified 508 unique toxin-like transcripts grouped into 63 families...
July 21, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28738801/charged-residues-next-to-transmembrane-regions-revisited-positive-inside-rule-is-complemented-by-the-negative-inside-depletion-outside-enrichment-rule
#5
James Alexander Baker, Wing-Cheong Wong, Birgit Eisenhaber, Jim Warwicker, Frank Eisenhaber
BACKGROUND: Transmembrane helices (TMHs) frequently occur amongst protein architectures as means for proteins to attach to or embed into biological membranes. Physical constraints such as the membrane's hydrophobicity and electrostatic potential apply uniform requirements to TMHs and their flanking regions; consequently, they are mirrored in their sequence patterns (in addition to TMHs being a span of generally hydrophobic residues) on top of variations enforced by the specific protein's biological functions...
July 24, 2017: BMC Biology
https://www.readbyqxmd.com/read/28736428/penile-doppler-ultrasonography-revisited
#6
Dae Chul Jung, Sung Yoon Park, Joo Yong Lee
Penile Doppler ultrasonography is a high-performing, noninvasive or minimally-invasive imaging modality that allows the depiction of the normal anatomy and macroscopic pathologic changes in real time. Moreover, functional changes in penile blood flow, as seen in erectile dysfunction (ED), can be analyzed using color Doppler ultrasonography (CDUS). This review article describes the normal sonographic anatomy of the penis, the sonographic technique for evaluating ED, the normal phases of erection, and the various causes of ED...
June 10, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28736269/iodine-lithium-alpha-dextrin-il%C3%AE-d-against-staphylococcus-aureus-skin-infections-a-comparative-study-of-in-vitro-bactericidal-activity-and-cytotoxicity-between-il%C3%AE-d-and-povidone-iodine
#7
A P Zisi, M K Exindari, E K Siska, G G Koliakos
BACKGROUND: As antimicrobial resistance continuously increases, revisiting old antimicrobial agents, modified to enhance efficacy and safety, becomes important. Iodine has been widely used for more than 150 years as a wound and skin disinfectant; it is an effective broad range bactericide, and to date, it lacks reports of resistance development. The most important iodine-based agent is Povidone-Iodine (PVP-I) which provides excellent antibacterial activity. However, its safety profile has been questioned...
July 20, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28735773/today-s-fentanyl-crisis-prohibition-s-iron-law-revisited
#8
Leo Beletsky, Corey S Davis
More than a decade in the making, America's opioid crisis has morphed from being driven by prescription drugs to one fuelled by heroin and, increasingly, fentanyl. Drawing on historical lessons of the era of National Alcohol Prohibition highlights the unintended, but predictable impact of supply-side interventions on the dynamics of illicit drug markets. Under the Iron Law of Prohibition, efforts to interrupt and suppress the illicit drug supply produce economic and logistical pressures favouring ever-more compact substitutes...
June 26, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28735118/giant-meckel-s-diverticulum-compressing-root-of-mesentery-a-rare-cause-of-ileal-gangrene-case-report-and-review-of-literature
#9
Mohammed Farooq, Aashish Rajesh
INTRODUCTION: Meckel's diverticulum (MD) commonly presents as gastrointestinal bleeding in the pediatric population and intestinal obstruction in adults. There is no consensus for surgical excision of an incidentally diagnosed MD. We present a hitherto unreported vascular cause of intestinal gangrene due to MD. CASE PRESENTATION: A 16year old boy was referred as an acute abdomen for tertiary hospital management. Clinical examination and CT suggested small bowel obstruction and emergency laparotomy was performed...
July 14, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28735078/revisiting-the-role-of-the-insula-and-smoking-cue-reactivity-in-relapse-a-replication-and-extension-of-neuroimaging-findings
#10
A C Janes, J M Gilman, M Radoman, G Pachas, M Fava, A E Evins
INTRODUCTION: The ability to direct smoking cessation treatment based on neuroscientific findings holds incredible promise. However, there is a strong need for consistency across studies to confirm neurobiological targets. While our prior work implicated enhanced insula reactivity to smoking cues in tobacco smoking relapse vulnerability, this finding has not been confirmed. METHOD: Using functional magnetic resonance imaging (fMRI), we evaluated the pre-cessation brain reactivity to smoking vs...
July 12, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28734284/cage-model-of-polar-fluids-finite-cage-inertia-generalization
#11
W T Coffey, M Zarifakis, Y P Kalmykov, S V Titov, W J Dowling, A S Titov
The itinerant oscillator model describing rotation of a dipole about a fixed axis inside a cage formed by its surrounding polar molecules is revisited in the context of modeling the dielectric relaxation of a polar fluid via the Langevin equation. The dynamical properties of the model are studied by averaging the Langevin equations describing the complex orientational dynamics of two bodies (molecule-cage) over their realizations in phase space so that the problem reduces to solving a system of three index linear differential-recurrence relations for the statistical moments...
July 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28733754/the-influence-of-imagery-capacity-in-motor-performance-improvement
#12
Célia Ruffino, Charalambos Papaxanthis, Florent Lebon
Motor imagery (MI) training improves motor performance, but the inter-individual variability of this improvement remains still unexplored. In this study, we tested the influence of imagery ability on the performance improvement following MI training. Twenty participants were randomly distributed into the MI or control group. They actually performed, at pre- and post-test sessions, a revisited version of the Nine Hole Peg Test, a speed-accuracy trade-off task, commonly used in clinics. Between the tests, the MI group mentally trained on the task (5 blocks of 10 trials), while the control group watched a non-emotional documentary...
July 21, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28733623/crystal-structure-of-a-low-molecular-weight-activator-blm-pep-with-yeast-20s-proteasome-insights-into-the-enzyme-activation-mechanism
#13
Julia Witkowska, Małgorzata Giżyńska, Przemysław Grudnik, Przemysław Golik, Przemysław Karpowicz, Artur Giełdoń, Grzegorz Dubin, Elżbieta Jankowska
Proteasomes are responsible for protein turnover in eukaryotic cells, degrading short-lived species but also removing improperly folded or oxidatively damaged ones. Dysfunction of a proteasome results in gradual accumulation of misfolded/damaged proteins, leading to their aggregation. It has been postulated that proteasome activators may facilitate removal of such aggregation-prone proteins and thus prevent development of neurodegenerative disorders. However, the discovery of pharmacologically relevant compounds is hindered by insufficient structural understanding of the activation process...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733025/revisiting-historical-khoe-san-skeletal-remains-in-european-collections-a-search-for-identity-through-craniometric-analysis
#14
D Botha, M Steyn, Y Scholtz, I Ribot
As the identity of a large number of Khoe-San skeletal material in European collections recently came into question during its documentation, a re-evaluation of the remains by employing a non-invasive method such as craniometrics was done to investigate the biological affinity. For this purpose, gene flow and population diversity present within the group, as well as between the study sample (N=63) and other modern and historic population groups from southern, central and east Africa were explored. Available comparative groups included the historic Khoe-San from Riet River (N=31), the Sotho-Tswana from southern Africa (N=61), the Basuku from central Africa (N=66) and the Bahutu (N=53) and Teita (N=24) from east Africa...
June 28, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28732445/photoelectron-spectroscopy-study-of-quinonimides
#15
Ekram Hossain, Shihu M Deng, Samer Gozem, Anna I Krylov, Xue-Bin Wang, Paul G Wenthold
Structures and energetics of o-, m- and p-quinonimide anions (OC6H4N) and quinoniminyl radicals have been investigated by using negative ion photoelectron spectroscopy. Modeling of the photoelectron spectrum of the ortho isomer shows that the ground state of the anion is a triplet, while the quinoniminyl radical has a doublet ground state with a doublet-quartet splitting of 35.5 kcal/mol. The para radical has doublet ground state, but a band for a quartet state is missing from the photoelectron spectrum indicating that the anion has a singlet ground state, in contrast to previously reported calculations...
July 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28731710/computational-calorimetry-of-pnipam-cononsolvency-in-water-methanol-mixtures
#16
Cahit Dalgicdir, Francisco Rodriguez-Ropero, Nico F A van der Vegt
We revisit the mechanism for cononsolvency of PNIPAM in water/methanol mixtures. Using extensive molecular dynamics simulations we calculate the calorimetric enthalpy of the PNIPAM collapse transition and observe a unique fingerprint of PNIPAM cononsolvency which is analysed in terms of microscopic interactions. We find that polymer hydration is the determining factor for PNIPAM collapse in the cononsolvency regime. In particular, it is shown that methanol frustrates the ability of water to form hydrogen bonds with the amide proton and therefore causes polymer collapse...
July 21, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28730796/histopathological-definition-of-medullary-breast-cancer-should-be-revisited
#17
Kadri Altundag
No abstract text is available yet for this article.
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28729420/revisiting-the-substrate-specificity-of-mammalian-%C3%AE-1-6-fucosyltransferase-fut8-reveals-that-it-catalyzes-core-fucosylation-of-n-glycans-lacking-%C3%AE-1-3-arm-glcnac
#18
Qiang Yang, Roushu Zhang, Hui Cai, Lai-Xi Wang
The mammalian α1,6-fucosyltransferase (FUT8) catalyzes the core fucosylation of N-glycans in the biosynthesis of glycoproteins. Previously, intensive in vitro studies with crude extract or purified enzyme concluded that the attachment of a GlcNAc on the α1,3 mannose arm of N-glycan is essential for FUT8 catalyzed core fucosylation. In contrast, we have recently shown that expression of erythropoietin (EPO) in a GnTI-knockout, FUT8 overexpressing cell line results in the production of fully core-fucosylated glycoforms of the oligomannose substrate Man5GlcNAc2, suggesting that FUT8 can catalyze core fucosylation of N-glycans lacking an α1,3arm GlcNAc in cells...
July 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28727844/revisiting-the-concept-of-a-cytopathic-viral-infection
#19
Nicholas S Heaton
No abstract text is available yet for this article.
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28727457/enthalpy-of-formation-of-n2h4-hydrazine-revisited
#20
David F Feller, David Bross, Branko Ruscic
In order to address the accuracy of the long-standing experimental enthalpy of formation of gas-phase hydrazine, fully confirmed in earlier versions of Active Thermochemical Tables (ATcT), the provenance of that value is re-examined in light of new high-end calculations of the Feller-Peterson-Dixon (FPD) variety. An overly optimistic determination of the vaporization enthalpy of hydrazine, which created an unrealistically strong connection between the gas phase thermochemistry and the calorimetric results defining the thermochemistry of liquid hydrazine was identified as the probable culprit...
July 20, 2017: Journal of Physical Chemistry. A
keyword
keyword
56004
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"