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https://www.readbyqxmd.com/read/28102941/synthesis-of-primaquine-glyco-conjugates-as-potential-tissue-schizontocidal-antimalarial-agents
#1
Chandra S Azad, Mridula Saxena, Arif J Siddiqui, Jyoti Bhardwaj, Sunil K Puri, Guru P Dutta, Nity Anand, Anil K Saxena
Primaquine (PQ) is the only drug used to prevent relapse of malaria due to P. vivax and P. ovale, by eradicating the dormant liver form of the parasite (hypnozoites). The side effects associated with PQ limits is uses in treatment of malaria. To overcome the premature oxidative deamination and to increase the life span of drug in the biological system the novel glyco-conjugates of PQ were synthesized by coupling of primaquine with hexoses in phosphate buffer. The saccharide part of the hybrid molecules thought to be direct the drug to the liver, where hypnozoites resides...
January 19, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28102713/factors-associated-with-the-status-of-meniscal-tears-following-meniscal-repair-concomitant-with-anterior-cruciate-ligament-reconstruction
#2
Takehiko Matsushita, Kanto Nagai, Daisuke Araki, Toshikazu Tanaka, Tomoyuki Matsumoto, Kotaro Nishida, Masahiro Kurosaka, Ryosuke Kuroda
Purpose Anterior cruciate ligament (ACL) injuries are often accompanied by meniscal tears. Meniscal repair is typically performed during ACL reconstruction. However, retear of the meniscus after repair is frequent. The purpose of this study was to analyze the factors associated with meniscal healing after meniscal repair concomitant with ACL reconstruction. Materials and Methods Eighty-seven meniscal repairs in 87 patients who received meniscal repair combined with ACL reconstruction and received second-look arthroscopy at a mean of postoperatively 15...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28102267/a-theoretical-foundation-for-multi-scale-regular-vegetation-patterns
#3
Corina E Tarnita, Juan A Bonachela, Efrat Sheffer, Jennifer A Guyton, Tyler C Coverdale, Ryan A Long, Robert M Pringle
Self-organized regular vegetation patterns are widespread and thought to mediate ecosystem functions such as productivity and robustness, but the mechanisms underlying their origin and maintenance remain disputed. Particularly controversial are landscapes of overdispersed (evenly spaced) elements, such as North American Mima mounds, Brazilian murundus, South African heuweltjies, and, famously, Namibian fairy circles. Two competing hypotheses are currently debated. On the one hand, models of scale-dependent feedbacks, whereby plants facilitate neighbours while competing with distant individuals, can reproduce various regular patterns identified in satellite imagery...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28102054/extracellular-vesicles-a-key-mediator-to-link-environmental-microbiota-to-airway-immunity
#4
REVIEW
Youngwoo Choi, Hanki Park, Hae Sim Park, Yoon Keun Kim
Asthma is considered the hallmark of chronic airway inflammation, in which several inflammatory cells of the innate and adaptive immune system act together. The disease is thought to be caused by a combination of genetic and environmental factors; however, precise mechanisms for airway inflammation remain unclear. The human microbiota provides an increasingly favored explanation for inflammatory diseases; an altered microbiota composition has been shown to regulate immune responses. However, given the complexity of the microbiota, additional research is needed to elucidate its role in the development of disease...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28101703/differences-in-cortical-sources-of-the-event-related-p3-potential-between-young-and-old-participants-indicate-frontal-compensation
#5
R van Dinteren, R J Huster, M L A Jongsma, R P C Kessels, M Arns
The event-related P3 potential, as elicited in auditory signal detection tasks, originates from neural activity of multiple cortical structures and presumably reflects an overlap of several cognitive processes. The fact that the P3 is affected by aging makes it a potential metric for age-related cognitive change. The P3 in older participants is thought to encompass frontal compensatory activity in addition to task-related processes. The current study investigates this by decomposing the P3 using group independent component analysis (ICA)...
January 18, 2017: Brain Topography
https://www.readbyqxmd.com/read/28101677/emesis-and-nausea-related-to-single-agent-trabectedin-in-ovarian-cancer-patients-a-sub-study-of-the-mito15-project
#6
Marilena Di Napoli, Chiara Della Pepa, Laura Arenare, Giovanni Scambia, Domenica Lorusso, Francesco Raspagliesi, Gabriella Ferrandina, Vanda Salutari, Roberto Sorio, Anna Maria Mosconi, Giorgia Mangili, Lucia Borgato, Stefano Lepori, Angela Salvino, Sandro Pignata, Sabrina Chiara Cecere
The MITO 15 was a prospective, single-arm trial, evaluating trabectedin monotherapy in patients with recurrent ovarian cancer (OC) who were BRCA mutation-carriers or had a BRCAness phenotype. It is largely reported that trabectedin may induce nausea and vomiting but the real emetogenic potential of the drug, in the different schedules, has never been fully described; furthermore, OC patients are known to have an enhanced risk of developing nausea and vomiting due to female gender, abdominal spreading of the disease, and major surgery experienced by most of them...
January 19, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28101529/cortico-cortical-connections-of-primary-sensory-areas-and-associated-symptoms-in-migraine
#7
Duncan J Hodkinson, Rosanna Veggeberg, Aaron Kucyi, Koene R A van Dijk, Sophie L Wilcox, Steven J Scrivani, Rami Burstein, Lino Becerra, David Borsook
Migraine is a recurring, episodic neurological disorder characterized by headache, nausea, vomiting, and sensory disturbances. These events are thought to arise from the activation and sensitization of neurons along the trigemino-vascular pathway. From animal studies, it is known that thalamocortical projections play an important role in the transmission of nociceptive signals from the meninges to the cortex. However, little is currently known about the potential involvement of cortico-cortical feedback projections from higher-order multisensory areas and/or feedforward projections from principle primary sensory areas or subcortical structures...
November 2016: ENeuro
https://www.readbyqxmd.com/read/28100976/ventricular-tachycardia-in-fabry-disease-detected-in-a-50-year-old-woman-during-14-day-continuous-cardiac-monitoring
#8
Jaime Silva-Gburek, Laura Rochford, Robert Hopkin, John L Jefferies
Fabry disease is an X-linked lysosomal storage disorder. Female carriers were long thought to be asymptomatic; however, research has revealed the opposite. Cardiac conditions are the chief causes of death in women with Fabry disease. Although ventricular tachycardia has been reported in male patients with Fabry disease, it is not thought to be a frequent finding in females. We describe the case of a 50-year-old woman in whom we used 14-day continuous electrocardiographic monitoring to identify nonsustained ventricular tachycardia, after electrocardiograms and 24-hour Holter monitoring failed to detect the arrhythmia...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28100902/prognostic-role-of-neutrophil-to-lymphocyte-ratio-in-locally-advanced-rectal-cancer-treated-with-neoadjuvant-chemoradiotherapy
#9
Jinwen Shen, Yuan Zhu, Wei Wu, Lingnan Zhang, Haixing Ju, Yongtian Fan, Yuping Zhu, Jialin Luo, Peng Liu, Ning Zhou, Ke Lu, Na Zhang, Dechuan Li, Luying Liu
BACKGROUND Increasing evidence suggests that cancer-associated inflammation is associated with poorer outcomes. The neutrophil-to-lymphocyte ratio (NLR), considered as a systemic inflammation marker, is thought to predict prognoses in colorectal cancer. In this study, we explored the association between the NLR and prognoses following neoadjuvant chemoradiotherapy (CRT) for locally advanced rectal cancer (LARC). MATERIAL AND METHODS From February 2002 to December 2012, a group of 202 patients diagnosed with LARC and receiving neoadjuvant CRT followed by radical surgery was included in our retrospective study...
January 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28100869/gonadotoropin-actions-on-spermatogenesis-and-hormonal-therapies-for-spermatogenic-disorders-review
#10
Koji Shiraishi, Hideyasu Matsuyama
Microdissection testicular sperm extraction and intracytoplasmic sperm injection have made it possible for men with non-obstructive azoospermia (NOA) to conceive a child. A majority of men cannot produce sperm because spermatogenesis per se is believed to be "irreversibly" disturbed. For these men, it and has been thought that any hormonal therapy will be ineffective. Further understandings of endocrinological regulation of spermatogenesis are needed and LH or FSH receptor knock out (KO) mice have revealed the roles of gonadotropin separately...
January 19, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28100860/-a-pediatric-case-of-intractable-cerebrospinal-fluid-leakage-after-implantation-of-an-intrathecal-baclofen-pump
#11
Akitsugu Morishita, Hideo Aihara, Tomoaki Nakai, Masao Adachi
Intrathecal baclofen(ITB)infusion can offer a useful treatment for severe spasticity;however, numerous complications have been reported. We report a pediatric case in which intractable cerebrospinal fluid(CSF)leakage associated with several inconvenient symptoms arose after implantation of the ITB pump system. A 10-year-old girl with spastic quadriparesis and athetoid cerebral palsy underwent implantation of an ITB delivery system. After discharge, she presented with fluid collection surrounding the pump in the abdomen...
January 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28100830/neural-bases-of-recommendations-differ-according-to-social-network-structure
#12
Matthew Brook O'Donnell, Joseph B Bayer, Christopher N Cascio, Emily B Falk
Ideas spread across social networks, but not everyone is equally positioned to be a successful recommender. Do individuals with more opportunities to connect otherwise unconnected others-high information brokers-use their brains differently than low information brokers when making recommendations? We test the hypothesis that those with more opportunities for information brokerage may use brain systems implicated in considering the thoughts, perspectives, and mental states of others (i.e. 'mentalizing') more when spreading ideas...
January 18, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28100817/mechanical-sensitivity-and-the-dynamics-of-evolutionary-rate-shifts-in-biomechanical-systems
#13
Martha M Muñoz, Philip S L Anderson, S N Patek
The influence of biophysical relationships on rates of morphological evolution is a cornerstone of evolutionary theory. Mechanical sensitivity-the correlation strength between mechanical output and the system's underlying morphological components-is thought to impact the evolutionary dynamics of form-function relationships, yet has rarely been examined. Here, we compare the evolutionary rates of the mechanical components of the four-bar linkage system in the raptorial appendage of mantis shrimp (Order Stomatopoda)...
January 25, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28100751/decision-related-activity-in-macaque-v2-for-fine-disparity-discrimination-is-not-compatible-with-optimal-linear-readout
#14
Stephane Clery, Bruce G Cumming, Hendrikje Nienborg
: Fine judgments of stereoscopic depth rely mainly on relative judgments of depth (relative binocular disparity) between objects, rather than judgments of the distance to where the eyes are fixating (absolute disparity). In macaques, visual area V2 is the earliest site in the visual processing hierarchy for which neurons selective for relative disparity have been observed (Thomas et al., 2002). Here, we found that, in macaques trained to perform a fine disparity discrimination task, disparity-selective neurons in V2 were highly selective for the task, and their activity correlated with the animals' perceptual decisions (unexplained by the stimulus)...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28100737/selectivity-in-postencoding-connectivity-with-high-level-visual-cortex-is-associated-with-reward-motivated-memory
#15
Vishnu P Murty, Alexa Tompary, R Alison Adcock, Lila Davachi
: Reward motivation has been demonstrated to enhance declarative memory by facilitating systems-level consolidation. Although high-reward information is often intermixed with lower reward information during an experience, memory for high value information is prioritized. How is this selectivity achieved? One possibility is that postencoding consolidation processes bias memory strengthening to those representations associated with higher reward. To test this hypothesis, we investigated the influence of differential reward motivation on the selectivity of postencoding markers of systems-level memory consolidation...
January 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28100662/zika-virus-causes-supernumerary-foci-with-centriolar-proteins-and-impaired-spindle-positioning
#16
Benita Wolf, Fodé Diop, Pauline Ferraris, Sineewanlaya Wichit, Coralie Busso, Dorothée Missé, Pierre Gönczy
Zika virus (ZIKV) causes congenital microcephaly. Although ZIKV can impair cell cycle progression and provoke apoptosis, which probably contributes to disease aetiology through depletion of neural progenitor cells, additional cellular mechanisms may be important. Here, we investigated whether ZIKV infection alters centrosome number and spindle positioning, because such defects are thought to be at the root of inherited primary autosomal recessive microcephaly (MCPH). In addition to HeLa cells, in which centrosome number and spindle positioning can be well monitored, we analysed retinal epithelial cells (RPE-1), as well as brain-derived microglial (CHME-5) and neural progenitor (ReN) cells, using immunofluorescence...
January 2017: Open Biology
https://www.readbyqxmd.com/read/28100641/new-sources-of-value-for-health-and-care-in-a-carbon-constrained-world
#17
Kate Emma Charlesworth, Maggie Jamieson
BACKGROUND: Due to the climate crisis, it is increasingly evident that countries will have to decarbonize. Healthcare, which has a large carbon footprint and uses vast quantities of resources, will have to undergo significant transformation. In this research, we sought the ideas of leading thinkers in the field, to address the question of how health systems can provide high-quality care in a carbon-constrained world. METHODS: Semi-structured, qualitative in-depth interviews with 15 healthcare thought leaders from Australia, the UK, the USA and New Zealand...
January 17, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28100635/phospholipase-lpl1-links-lipid-droplet-function-with-quality-control-protein-degradation
#18
Nina Weisshaar, Hendrik Welsch, Angel Guerra-Moreno, John Hanna
Protein misfolding is toxic to cells and is thought to underlie many human diseases, including many neurodegenerative diseases. Accordingly, cells have developed stress responses to deal with misfolded proteins. The transcription factor Rpn4 mediates one such response, and is best known for regulating the abundance of the proteasome, the complex multisubunit protease that destroys proteins. Here we identify Lpl1 as an unexpected target of the Rpn4 response. Lpl1 is a phospholipase and a component of the lipid droplet...
January 18, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28100333/-streptococcus-pneumoniae-induces-splunc1-and-the-regulatory-effects-of-resveratrol
#19
Yan-Ping Shang, Li Lin, Chang-Chong Li
OBJECTIVE: To investigate the host-defense role of short palate, lung, and nasal epithelium clone 1 (SPLUNC1) in Streptococcus pneumoniae (SP) infection and the effect of resveratrol (Res) on SPLUNC1 expression, and to provide new thoughts for the treatment of diseases caused by SP infection. METHODS: According to the multiplicity of infection (MOI), BEAS-2B cells with SP infection were divided into control group, MOI20 SP group, and MOI50 SP group. According to the different concentrations of Res, the BEAS-2B cells with MOI20 SP infection pretreated by Res were divided into 12...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28100229/surveillance-of-life-long-antibiotics-a-review-of-antibiotic-prescribing-practices-in-an-australian-healthcare-network
#20
Jillian S Y Lau, Christopher Kiss, Erika Roberts, Kylie Horne, Tony M Korman, Ian Woolley
BACKGROUND: The rise of antimicrobial use in the twentieth century has significantly reduced morbidity due to infection, however it has also brought with it the rise of increasing resistance. Some patients are on prolonged, if not "life-long" course of antibiotics. The reasons for this are varied, and include non-infectious indications. We aimed to study the characteristics of this potential source of antibiotic resistance, by exploring the antibiotic dispensing practices and describing the population of patients on long-term antibiotic therapy...
January 18, 2017: Annals of Clinical Microbiology and Antimicrobials
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