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https://www.readbyqxmd.com/read/28918539/accelerating-vaccine-development-during-the-2013-2016-west-african-ebola-virus-disease-outbreak
#1
Elizabeth S Higgs, Sheri A Dubey, Beth A G Coller, Jakub K Simon, Laura Bollinger, Robert A Sorenson, Barthalomew Wilson, Martha C Nason, Lisa E Hensley
The Ebola virus disease outbreak that began in Western Africa in December 2013 was unprecedented in both scope and spread, and the global response was slower and less coherent than was optimal given the scale and pace of the epidemic. Past experience with limited localized outbreaks, lack of licensed medical countermeasures, reluctance by first responders to direct scarce resources to clinical research, community resistance to outside interventions, and lack of local infrastructure were among the factors delaying clinical research during the outbreak...
September 17, 2017: Current Topics in Microbiology and Immunology
https://www.readbyqxmd.com/read/28918503/coq0-induced-mitochondrial-ptp-opening-triggers-apoptosis-via-ros-mediated-vdac1-upregulation-in-hl-60-leukemia-cells-and-suppresses-tumor-growth-in-athymic-nude-mice-xenografted-nude-mice
#2
You-Cheng Hseu, Varadharajan Thiyagarajan, Ting-Tsz Ou, Hsin-Ling Yang
Coenzyme Q (CoQ) analogs with variable numbers of isoprenoid units have been demonstrated as anticancer and antioxidant/pro-oxidant molecules. This study examined the in vitro and in vivo antitumor and apoptosis activities of CoQ0 (2,3-dimethoxy-5-methyl-1,4-benzoquinone, zero isoprenoid side-chains) through upregulation of the Voltage-dependent anion channel 1 (VDAC1) signaling pathway on human promyelocytic leukemia. CoQ0 (0-40 μg/mL) treatment significantly reduced HL-60 cell viability, and up-regulated mitochondrial VDAC1 expression...
September 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28918410/-just-like-a-normal-pain-what-do-people-with-diabetes-mellitus-experience-when-having-a-myocardial-infarction-a-qualitative-study-recruited-from-uk-hospitals
#3
Nikita Berman, Melvyn Mark Jones, Daan A De Coster
OBJECTIVE: The objective of the study was to investigate the symptoms people with diabetes experience when having a myocardial infarction (MI), their illness narrative and how they present their symptoms to the health service. SETTING: Three London (UK) hospitals (coronary care units and medical wards). PARTICIPANTS: Patients were recruited with diabetes mellitus (DM) (types 1 and 2) with a clinical presentation of MI (ST elevated MI (STEMI), non-ST elevated MI (NSTEMI), acute MI unspecified and cardiac arrest)...
September 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28918409/qualitative-interview-study-of-parents-perspectives-concerns-and-experiences-of-the-management-of-lower-respiratory-tract-infections-in-children-in-primary-care
#4
Amy Halls, Catherine Van't Hoff, Paul Little, Theo Verheij, Geraldine M Leydon
OBJECTIVE: To explore parents' perspectives, concerns and experiences of the management of lower respiratory tract infections (LRTIs) in children in primary care. DESIGN: Qualitative semistructured interview study. SETTING: UK primary care. PARTICIPANTS: 23 parents of children aged 6 months to 10 years presenting with LRTI in primary care. METHOD: Thematic analysis of semistructured interviews (either in person or by telephone) conducted with parents to explore their experiences and views on their children being prescribed antibiotics for LRTI...
September 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28918401/return-to-work-and-lost-earnings-after-acute-respiratory-distress-syndrome-a-5-year-prospective-longitudinal-study-of-long-term-survivors
#5
Biren B Kamdar, Kristin A Sepulveda, Alexandra Chong, Robert K Lord, Victor D Dinglas, Pedro A Mendez-Tellez, Carl Shanholtz, Elizabeth Colantuoni, Till M von Wachter, Peter J Pronovost, Dale M Needham
BACKGROUND: Delayed return to work is common after acute respiratory distress syndrome (ARDS), but has undergone little detailed evaluation. We examined factors associated with the timing of return to work after ARDS, along with lost earnings and shifts in healthcare coverage. METHODS: Five-year, multisite prospective, longitudinal cohort study of 138 2-year ARDS survivors hospitalised between 2004 and 2007. Employment and healthcare coverage were collected via structured interview...
September 16, 2017: Thorax
https://www.readbyqxmd.com/read/28918366/a-progressive-reduction-in-autophagic-capacity-contributes-to-induction-of-replicative-senescence-in-hs68-cells
#6
Byeal-I Han, Sung-Hee Hwang, Michael Lee
Autophagy has been implicated in delayed aging and extended longevity. Here, we aimed to study the possible effects of autophagy during the progression of replicative senescence, which is one of the major features of aging. Human foreskin fibroblasts, Hs68 cells, at an initial passage of 15 were serially cultured for several months until they reached cellular senescence. A decrease in cell proliferation was observed during the progression of senescence. Induction of replicative senescence in aged cells (at passage 40) was confirmed by senescence-associated β-galactosidase (SA-β-gal) activity that represents a sensitive and reliable marker for quantifying senescent cells...
September 13, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28918332/control-of-absence-epilepsy-seizures-in-specific-relay-nuclei-of-thalamus
#7
Bing Hu, Xiaoqiang Zou, Yu Guo, Zhejia Yang, Feng Shi, Wangyuan Dong
In this paper, we used a classic basal ganglia-corticothalamic model(BGCT) to study the onset and control mechanism of absence epilepsy in specific relay nuclei (SRN) of thalamus. It was found that the seizure state may appear in SRN by turning the coupling strength -vsr and signal transmission delay τ on the route "Thalamic reticular nuclei (TRN) of thalamus ⟶ SRN ". With increasing of -vsr, the seizure state appeared two times, and its onset mechanism has not been discussed in previous studies. The seizure activity can be well controlled by adjusting the activation level of the substantia nigra pars reticulata (SNr) in basal ganglia, which is a main output tissue to the corticothalamic system through two direct inhibitory pathways "SNr ⟶ SRN" and "SNr ⟶ TRN " in our model...
September 13, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28918296/trichobezoar-with-and-without-rapunzel-syndrome-in-paediatric-population-a-case-series-from-a-tertiary-care-centre-of-northern-india
#8
Pradeep Kajal, Namita Bhutani, Niharika Tyagi, Pratibha Arya
INTRODUCTION: Trichobezoars are concretions formed by accumulation of hair in stomach. Usually, trichobezoar is confined to the stomach, but rarely it may extend from the stomach to the small intestine and even colon. This is an unusual form called Rapunzel syndrome. Our experience with this rare entity of Rapunzel syndrome and interesting entity of trichobezoar is being presented with review of literature. PRESENTATION OF CASES: We, at our institute, encountered four cases of trichobezoar in last five years, out of which two were found to be of Rapunzel syndrome...
September 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28918266/nanomedicine-for-safe-healing-of-bone-trauma-opportunities-and-challenges
#9
REVIEW
Shahed Behzadi, Gaurav A Luther, Mitchel B Harris, Omid C Farokhzad, Morteza Mahmoudi
Historically, high-energy extremity injuries resulting in significant soft-tissue trauma and bone loss were often deemed unsalvageable and treated with primary amputation. With improved soft-tissue coverage and nerve repair techniques, these injuries now present new challenges in limb-salvage surgery. High-energy extremity trauma is pre-disposed to delayed or unpredictable bony healing and high rates of infection, depending on the integrity of the soft-tissue envelope. Furthermore, orthopedic trauma surgeons are often faced with the challenge of stabilizing and repairing large bony defects while promoting an optimal environment to prevent infection and aid bony healing...
September 4, 2017: Biomaterials
https://www.readbyqxmd.com/read/28918040/codon-optimized-p1a-encoding-dna-vaccine-toward-a-therapeutic-vaccination-against-p815-mastocytoma
#10
Alessandra Lopes, Kevin Vanvarenberg, Véronique Préat, Gaëlle Vandermeulen
DNA vaccine can be modified to increase protein production and modulate immune response. To enhance the efficiency of a P815 mastocytoma DNA vaccine, the P1A gene sequence was optimized by substituting specific codons with synonymous ones while modulating the number of CpG motifs. The P815A murine antigen production was increased with codon-optimized plasmids. The number of CpG motifs within the P1A gene sequence modulated the immunogenicity by inducing a local increase in the cytokines involved in innate immunity...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917847/release-of-polyphenols-from-starch-chitosan-based-films-containing-thyme-extract
#11
Emma Talón, Kata T Trifkovic, María Vargas, Amparo Chiralt, Chelo González-Martínez
The release kinetics of thyme extract polyphenols (TE) from chitosan (CH), pea starch (S) and CH:S blend films in different solvents was evaluated, as well as their antioxidant activity in each release media. Pure starch films showed the fastest delivery rate and the highest delivery ratio of polyphenols, although the corresponding release media exhibited the lowest antioxidant capacity. TE provided CH based films with remarkable antioxidant activity, despite the lower polyphenol release obtained in all solvents, due to the strong polyphenols-chitosan interactions...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917834/hexameric-assembly-of-membrane-fusion-protein-yknx-of-the-sporulation-delaying-efflux-pump-from-bacillus-amyloliquefaciens
#12
Yongbin Xu, Inseong Jo, Lulu Wang, Jinli Chen, Shengdi Fan, Yuesheng Dong, Chun-Shan Quan, Nam-Chul Ha
Membrane fusion proteins (MFPs) play an essential role in the action of the drug efflux pumps and protein secretion systems in bacteria. The sporulation delaying protein (SDP) efflux pump YknWXYZ has been identified in diverse Bacillus species. The MFP YknX requires the ATP-binding cassette (ABC) transporter YknYZ and the Yip1 family protein YknW to form a functional complex. To date, the crystal structure, molecular function and mechanism of action of YknX remain unknown. In this study, to characterize the structural and biochemical roles of YknX in the functional assembly of YknWXYZ from B...
September 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28917829/a-chinese-boy-with-geleophysic-dysplasia-caused-by-compound-heterozygous-mutations-in-adamtsl2
#13
Li Dongxiao, Dong Hui, Zheng Hong, Song Jinqing, Li Xiyuan, Jin Ying, Liu Yupeng, Yang Yanling
Geleophysic dysplasia, belonging to the group of acromelic dysplasia, is a rare genetic disease. Two genes, FBN1 and ADAMTSL2, were known to be linked to this disorder. The disorder presents as extreme short stature, short limbs, small hands and feet, stubby fingers and toes, joint stiffness, toe walking, skin thickening, progressive cardiac valvular thickening and characteristic facial features, including a round face with full cheeks. Here, we report the first Chinese case with geleophysic dysplasia type 1 based on clinical and genetic features...
September 13, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28917813/structural-impacts-on-the-timing-and-amplitude-of-the-negative-bold-response
#14
David Provencher, Alexandre Bizeau, Guillaume Gilbert, Yves Bérubé-Lauzière, Kevin Whittingstall
The positive (PBR) and negative BOLD responses (NBR) arising in task-fMRI display varying magnitudes and dynamics across voxels. While the effects of structure, particularly of veins, on the PBR have been studied, little is known of NBR-structure relationships. Like the PBR, the NBR is often used as a surrogate marker of neuronal activation in both basic and clinical research and assessing its relationship with cortical structure may help interpret group differences. We therefore investigated how local structure affects BOLD amplitude and timing in PBR and NBR areas using multi-band fMRI during visual stimulation to obtain high temporal resolution (TR=0...
September 13, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28917662/successful-optic-nerve-regeneration-in-the-senescent-zebrafish-despite-age-related-decline-of-cell-intrinsic-and-extrinsic-response-processes
#15
Jessie Van Houcke, Ilse Bollaerts, Emiel Geeraerts, Benjamin Davis, An Beckers, Inge Van Hove, Kim Lemmens, Lies De Groef, Lieve Moons
Dysfunction of the central nervous system (CNS) in neurodegenerative diseases or after brain lesions seriously affects life quality of a growing number of elderly, since the adult CNS lacks the capacity to replace or repair damaged neurons. Despite intensive research efforts, full functional recovery after CNS disease and/or injury remains challenging, especially in an aging environment. As such, there is a rising need for an aging model in which the impact of aging on successful regeneration can be studied...
August 24, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28917641/changes-in-innervation-of-lumbar-motoneurons-and-organization-of-premotor-network-following-training-of-transected-adult-rats
#16
Loubna Khalki, Karina Sadlaoud, Julie Lerond, Jacques-Olivier Coq, Jean-Michel Brezun, Laurent Vinay, Patrice Coulon, Hélène Bras
Rats with complete spinal cord transection (SCT) can recover hindlimb locomotor function under strategies combining exercise training and 5-HT agonist treatment. This recovery is expected to result from structural and functional re-organization within the spinal cord below the lesion. To begin to understand the nature of this reorganization, we examined synaptic changes to identified gastrocnemius (GS) or tibialis anterior (TA) motoneurons (MNs) in SCT rats after a schedule of early exercise training and delayed 5-HT agonist treatment...
September 13, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28917552/crispr-correction-of-the-prkag2-gene-mutation-in-the-patient-s-ipsc-derived-cardiomyocytes-eliminates-the-electrophysiological-and-structural-abnormalities
#17
Ronen Ben Jehuda, Binyamin Eisen, Yuval Shemer, Lucy N Mekies, Agnes Szantai, Irina Reiter, Huanhuan Cui, Kaomei Guan, Shiraz Haron-Khun, Dov Freimark, Silke R Sperling, Mihaela Gherghiceanu, Michael Arad, Ofer Binah
BACKGROUND: Mutations in the PRKAG2 gene encoding the γ-subunit of adenosine monophosphate-kinase (AMPK) cause hypertrophic cardiomyopathy (HCM) and familial-Wolff-Parkinson-White syndrome (WPW). Patients carrying the R302Q mutation in PRKAG2 present sinus bradycardia, escape rhythms, ventricular pre-excitation, supraventricular tachycardia and atrioventricular block. This mutation affects AMPK activity and increases glycogen storage in cardiomyocytes. The link between glycogen storage, WPW, HCM and arrhythmias remains unknown...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917521/midterm-results-of-combined-intra-and-extra-articular-acl-reconstruction-compared-to-historical-acl-reconstruction-data-multicenter-study-of-the-francophone-society-of-arthroscopy
#18
P Imbert, S Lustig, C Steltzlen, C Batailler, P Colombet, F Dalmay, S Bertiaux, P D'ingrado, F P Ehkirch, M L Louis, R Pailhé, J C Panisset, B Schlaterrer, B Sonnery-Cottet, L Sigwalt, D Saragaglia, C Lutz
INTRODUCTION: During anterior cruciate ligament (ACL) reconstruction procedures, anterolateral reconstruction (ALR) can also be performed to improve the knee's rotational stability. However, the effectiveness of this supplemental technique and its impact on the risk of retears and on the onset of secondary degenerative changesare controversial. HYPOTHESIS: ALR improves control over the pivot shift, reduces the retear risk and delays the appearance of secondary degenerative lesions...
September 13, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28917517/delayed-left-main-coronary-artery-obstruction-after-radiofrequency-induced-coronary-dissection-and-spasm-insights-from-optical-frequency-domain-imaging-and-intravascular-ultrasound-imaging
#19
Umihiko Kaneko, Yoshifumi Kashima, Daitaro Kannno, Takayuki Kitai, Hiroshi Taniguchi, Kikuya Uno, Tsutomu Fujita
No abstract text is available yet for this article.
September 6, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28917510/subacute-massive-pulmonary%C3%A2-thromboembolism-a-rare-delayed-complication-after-radiofrequency-ablation
#20
Neeta Bachani, Gopi Krishna Panicker, Sanjeev Vichare, Yash Lokhandwala
No abstract text is available yet for this article.
September 6, 2017: JACC. Cardiovascular Interventions
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