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https://www.readbyqxmd.com/read/28441804/-olfactory-bulb-volume-in-patients-with-posttraumatic-olfactory-dysfunction
#1
H Liu, W Hang, G Liu, T Han
Objective: To analyze the correlation between olfactory bulb(OB) volume and olfactory function in patients with posttraumatic olfactory dysfunction. Methods: Forty patients with posttraumatic olfactory dysfunction were compared with forty controls in terms of olfactory function T&T testing, OB volume assessed with magnetic resonance imaging (MRI). SPSS 17.0 software was used to analyze the data. Results: T&T olfactory testing revealed that patients with posttraumatic olfactory dysfunction had higher scores than controls(3...
April 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28441503/robust-uniform-and-highly-emissive-quantum-dot-polymer-films-and-patterns-using-thiol-ene-chemistry
#2
Markus Smith, Sidney T Malak, Jaehan Jung, Young Jun Yoon, Chun Hao Lin, Sunghan Kim, Kyung Min Lee, Ruilong Ma, Timothy J White, Timothy J Bunning, Zhiqun Lin, Vladimir V Tsukruk
This work demonstrates a facile and versatile method for generating low scattering crosslinked quantum dots (QD)-polymer composite films and patterned highly emissive structures with ultra-high QD loading, minimal phase-separation, and tunable mechanical properties. Uniform QD-polymer films are fabricated using thiol-ene chemistry, in which cross-linked polymer networks are rapidly produced in ambient conditions via fast UV polymerization in bulk to suppress QD aggregation. UV-controlled thiol-ene chemistry limits phase separation through producing highly QD loaded crosslinked composites with loading rate above majority of those reported in literature (<1%) and approaching 30%...
April 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28441499/low-loss-plasmonic-dielectric-nanoresonators
#3
Yi Yang, Owen Miller, Thomas Christensen, John D Joannopoulos, Marin Soljacic
Material losses in metals are a central bottleneck in plasmonics for many applications. Here we propose and theoretically demonstrate that metal losses can be successfully mitigated with dielectric particles on metallic films, giving rise to hybrid dielectric--metal resonances. In the far field, they yield strong and efficient scattering, beyond even the theoretical limits of all-metal and all-dielectric structures. In the near field, they offer high-Purcell-factor (${>}5000$), high-quantum-efficiency (${>}90\%$), and highly directional emission at visible and infrared wavelengths...
April 25, 2017: Nano Letters
https://www.readbyqxmd.com/read/28441441/a-novel-multiplexed-probe-based-quantitative-pcr-assay-for-the-soybean-root-and-stem-rot-pathogen-phytophthora-sojae-utilizes-its-transposable-element
#4
James S Haudenshield, Jeong Y Song, Glen L Hartman
Phytophthora root rot of soybean [Glycine max (L.) Merr.] is caused by the oomycete Phytophthora sojae (Kaufm. & Gerd.). P. sojae has a narrow host range, consisting primarily of soybean, and it is a serious pathogen worldwide. It exists in root and stem tissues as mycelium, wherein it can form oospores which subsequently germinate to release motile, infectious zoospores. Molecular assays detecting DNA of P. sojae are useful in disease diagnostics, and for determining the presence of the organism in host tissues, soils, and runoff or ponded water from potentially infested fields...
2017: PloS One
https://www.readbyqxmd.com/read/28441414/regional-early-and-progressive-loss-of-brain-pericytes-but-not-vascular-smooth-muscle-cells-in-adult-mice-with-disrupted-platelet-derived-growth-factor-receptor-%C3%AE-signaling
#5
Angeliki Maria Nikolakopoulou, Zhen Zhao, Axel Montagne, Berislav V Zlokovic
Pericytes regulate key neurovascular functions of the brain. Studies in pericyte-deficient transgenic mice with aberrant signaling between endothelial-derived platelet-derived growth factor BB (PDGF-BB) and platelet-derived growth factor receptor β (PDGFRβ) in pericytes have contributed to better understanding of the role of pericytes in the brain. Here, we studied PdgfrβF7/F7 mice, which carry seven point mutations that disrupt PDGFRβ signaling causing loss of pericytes and vascular smooth muscle cells (VSMCs) in the developing brain...
2017: PloS One
https://www.readbyqxmd.com/read/28441413/langerhans-cells-prevent-subbasal-nerve-damage-and-upregulate-neurotrophic-factors-in-dry-eye-disease
#6
Eun Young Choi, Hyun Goo Kang, Chul Hee Lee, Areum Yeo, Hye Mi Noh, Nayeong Gu, Myoung Joon Kim, Jong Suk Song, Hyeon Chang Kim, Hyung Keun Lee
The functional role of Langerhans cells (LCs) in ocular surface inflammation and nerve damage in dry eye (DE) disease has yet to be determined. This study was performed to investigate this relationship through both clinical study on DE patients and in vivo mouse models with induced DE disease. In a cross-sectional case-control study (54 eyes of DE patients; 34 eyes of control patients), average cell density, area, and process length of LCs were measured using confocal microscopy. Data were analyzed to determine whether changes in LCs are correlated with subbasal nerve plexus (SNP) parameters (nerve density, beading, and tortuosity)...
2017: PloS One
https://www.readbyqxmd.com/read/28441411/comparative-transcriptome-and-proteome-analysis-reveals-a-global-impact-of-the-nitrogen-regulators-area-and-areb-on-secondary-metabolism-in-fusarium-fujikuroi
#7
Andreas Pfannmüller, Johannes Leufken, Lena Studt, Caroline B Michielse, Christian M K Sieber, Ulrich Güldener, Susan Hawat, Michael Hippler, Christian Fufezan, Bettina Tudzynski
The biosynthesis of multiple secondary metabolites in the phytopathogenic ascomycete Fusarium fujikuroi is strongly affected by nitrogen availability. Here, we present the first genome-wide transcriptome and proteome analysis that compared the wild type and deletion mutants of the two major nitrogen regulators AreA and AreB. We show that AreB acts not simply as an antagonist of AreA counteracting the expression of AreA target genes as suggested based on the yeast model. Both GATA transcription factors affect a large and diverse set of common as well as specific target genes and proteins, acting as activators and repressors...
2017: PloS One
https://www.readbyqxmd.com/read/28441086/hematopoietic-to-mesenchymal-transition-of-adipose-tissue-macrophages-is-regulated-by-integrin-%C3%AE-1-and-fabricated-fibrin-matrices
#8
Kathleen M Gavin, Susan M Majka, Wendy M Kohrt, Heidi L Miller, Timothy M Sullivan, Dwight J Klemm
Some bona fide adult adipocytes arise de novo from a bone marrow-derived myeloid lineage. These studies further demonstrate that adipose tissue stroma contains a resident population of myeloid cells capable of adipocyte and multilineage mesenchymal differentiation. These resident myeloid cells lack hematopoietic markers and express mesenchymal and progenitor cell markers. Because bone marrow mesenchymal progenitor cells have not been shown to enter the circulation, we hypothesized that myeloid cells acquire mesenchymal differentiation capacity in adipose tissue...
April 3, 2017: Adipocyte
https://www.readbyqxmd.com/read/28440769/advanced-glycation-end-products-in-morbid-obesity-and-after-bariatric-surgery-when-glycemic-memory-starts-to-fail
#9
Enric Sánchez, Juan Antonio Baena-Fustegueras, María Cruz de la Fuente, Liliana Gutiérrez, Marta Bueno, Susana Ros, Albert Lecube
BACKGROUND AND OBJECTIVE: Advanced glycation end-products (AGEs) are a marker of metabolic memory. Their levels increases when oxidative stress, inflammation, or chronic hyperglycemia exists. The role of morbid obesity in AGE levels, and the impact of bariatric surgery on them are unknown. PATIENTS AND METHOD: An observational study with three sex- and age-matched cohorts: 52 patients with obesity, 46 patients undergoing bariatric surgery in the last 5 years, and 46 control subjects...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440741/standardized-rat-model-testing-effects-of-inflammation-and-grafting-on-extraction-healing
#10
Emily S Willett, Jingpeng Liu, Molly Berke, Peter J Giannini, Marian Schmid, Zhenshan Jia, Xiaobei Wang, Xiaoyan Wang, Kaeli Samson, Fang Yu, Dong Wang, Ali Nawshad, Richard A Reinhardt
BACKGROUND: Loss of the alveolar ridge width and height following tooth extraction is well-documented, but models to evaluate ridge preservation are neither standardized nor cost-effective. This rat model characterizes the pattern of bone turnover and inflammation after extraction and bone grafting with or without local simvastatin (SIM). METHODS: Fifty retired-breeder rats underwent extraction of the right maxillary first molar and standard surgical defect creation under inhalation/local anesthesia...
April 25, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28440738/restricted-feeding-modulates-the-daily-variations-of-liver-glutamate-dehydrogenase-activity-expression-and-histological-location
#11
Olivia Vázquez-Martínez, Isabel Méndez, Isaías Turrubiate, Héctor Valente-Godínez, Moisés Pérez-Mendoza, Paola García-Tejada, Mauricio Díaz-Muñoz
Glutamate dehydrogenase is an important enzyme in the hepatic regulation of nitrogen and energy metabolism. It catalyzes one of the most relevant anaplerotic reactions. Although its relevance in liver homeostasis has been widely described, its daily pattern and responsiveness to restricted feeding protocols has not been studied. We explored the daily variations of liver glutamate dehydrogenase transcription, protein, activity, and histochemical and subcellular location in a protocol of daytime food synchronization in rats...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440726/expression-of-c-type-lectin-receptor-mrna-in-chronic-otitis-media-with-cholesteatoma
#12
Sang Hoon Kim, Seung-Ho Han, Jae Yong Byun, Moon Suh Park, Young Il Kim, Seung Geun Yeo
CONCLUSIONS: The levels of expression of various C-type lectin receptors (CLRs) messenger ribo nucleic acids (mRNAs) were significantly higher in cholesteatomas than in normal skin, suggesting that these CLRs may be involved in the pathogenesis of cholesteatoma. OBJECTIVES: Altered expression of pattern recognition receptors may be associated with immune responses in patients with cholesteatoma. This study assessed the levels of expression of CLR mRNAs in normal skin and in cholesteatoma...
June 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28440662/step-tracking-with-goals-increases-children-s-weight-loss-in-behavioral-intervention
#13
Amanda E Staiano, Robbie A Beyl, Daniel S Hsia, Amber R Jarrell, Peter T Katzmarzyk, Savarra Mantzor, Robert L Newton, Patrice Tyson
BACKGROUND: This study examined the influence of step goals with pedometers to improve children's weight loss, physical activity, and psychosocial health during obesity treatment. METHODS: Overweight and obese children ages 8-17 years (n = 105) participated in a 10-week family-based weight management intervention, including physical activity, nutrition, and behavioral modification. A quasi-experimental design was used to group eight cohorts into three conditions: no pedometer (n = 24), pedometer only (n = 25), and pedometer with step goals (i...
April 25, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/28440641/thermochemical-investigations-of-hydrated-nickel-dication-complexes-by-threshold-collision-induced-dissociation-and-theory
#14
Rebecca A Coates, Peter B Armentrout
The experimental bond energies of Ni2+(H2O)x complexes, where x = 4 - 11, are determined by threshold collision-induced dissociation using a guided ion beam tandem mass spectrometer with an electrospray ionization source. The electrospray ionization source produces a distribution of Ni2+(H2O)x complexes, where an in-source fragmentation technique is employed to access the x = 4 - 6 complexes and control the population of excited isomers. The kinetic energy dependent cross sections are modeled to yield 0 K bond energies for sequential loss of neutral water molecules, which are converted to 298 K binding energies...
April 25, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28440521/-effect-of-laparoscopic-sleeve-gastrectomy-on-sex-hormone-in-male-severe-obesity
#15
Cuiling Zhu, Yi Zhang, Xingchun Wang, Jingyang Gao, Liesheng Lu, Donglei Zhou, Shen Qu
OBJECTIVE: To investigate the effect of laparoscopic sleeve gastrectomy(LSG) on sex hormone in male patients with severe obesity. METHODS: Retrospective analysis was performed in 31 male patient with severe obese [body mass index(BMI) ≥28 kg/m(2), obesity group] who underwent LSG in Shanghai Tenth People's Hospital of Tongji University from December 2012 to May 2016. The anthropometric parameters(weight, BMI, waist circumference, hip circumference, waist-hip ratio, body fat percentage), glucose metabolic indices [fasting plasma glucose(FPG), fasting insulin (FINS), glycosylated hemoglobin (HbA1c), homeostasis model assessment-insulin resistance index(HOMA-IR)], and sex hormone parameters [estradiol(E2), total testosterone (TT), follicle-stimulating hormone (FSH) and luteinizing hormone (LH)] were collected preoperatively and 1, 3, 6 months postoperatively...
April 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28440437/autophagy-related-protein-12-associates-with-anti-apoptotic-b-cell-lymphoma-2-to-promote-apoptosis-in-gentamicin-induced-inner-ear-hair-cell-loss
#16
Xiaofeng Ma, Yongze Liu, Waqas Muhammad, Dingding Liu, Junguo Wang, Han Zhou, Xia Gao, Xiaoyun Qian
The aim of the present study was to investigate the underlying mechanisms of autophagy in a gentamicin (GM)-induced ototoxic model, and to establish whether the blocking of autophagy significantly increases the survival of inner ear hair cells. Cochleae were carefully dissected from four day‑old C57BL/6J mice and randomly divided into three groups prior to explant culture: Control (culture medium), GM‑treated (culture medium + GM) and GM + 3-methyladenine (3-MA; culture medium + GM + 3‑MA). Transmission electron microscopy, immunofluorescence and western blotting were performed to observe the expression of the autophagy protein microtubule‑associated protein 1A/B‑light chain 3 in explant cultures treated with GM and the autophagy inhibitor 3‑MA...
April 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440436/annexin%C3%A2-a2-inhibition-suppresses-ovarian-cancer-progression-via-regulating-%C3%AE-catenin-emt
#17
Yan Liu, Hongyu Li, Zhenying Ban, Manman Nai, Li Yang, Yannan Chen, Yiming Xu
Annexin A2 is a member of the Annexin family that acts as a Ca2+-dependent phospholipid and membrane binding protein, which is associated with the survival and spread of multiple neoplasms. However, the function of Annexin A2 in ovarian cancer progression remains unclear. In this study, we aimed to investigate the role and underlying molecular mechanism of Annexin A2 in cell proliferation and invasion in ovarian cancer. We found that the mRNA expression of Annexin A2 was upregulated in ovarian cancer tissues and cell lines...
April 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440300/insecticide-induced-leg-loss-does-not-eliminate-biting-and-reproduction-in-anopheles-gambiae-mosquitoes
#18
Alison T Isaacs, Amy Lynd, Martin J Donnelly
Recent successes in malaria control have been largely attributable to the deployment of insecticide-based vector control tools such as bed nets and indoor residual spraying. Pyrethroid-treated bed nets are acutely neurotoxic to mosquitoes, inducing symptoms such as loss of coordination, paralysis, and violent spasms. One result of pyrethroid exposure often seen in laboratory tests is mosquito leg loss, a condition that has thus far been assumed to equate to mortality, as females are not expected to blood feed...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440262/risk-of-complications-and-urinary-incontinence-following-cytoreductive-prostatectomy-a-multi-institutional-study
#19
Dae Keun Kim, Jaspreet Singh Parihar, Young Suk Kwon, Sinae Kim, Brian Shinder, Nara Lee, Nicholas Farber, Thomas Ahlering, Douglas Skarecky, Bertram Yuh, Nora Ruel, Wun-Jae Kim, Koon Ho Rha, Isaac Yi Kim
Emerging evidence has suggested that cytoreductive prostatectomy (CRP) allows superior oncologic control when compared to current standard of care androgen deprivation therapy alone. However, the safety and benefit of cytoreduction in metastatic prostate cancer (mPCa) has not been proven. Therefore, we evaluated the incidence of complications following CRP in men newly diagnosed with mPCa. A total of 68 patients who underwent CRP from 2006 to 2014 at four tertiary surgical centers were compared to 598 men who underwent radical prostatectomy for clinically localized prostate cancer (PCa)...
April 25, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28440221/nptx2-and-cognitive-dysfunction-in-alzheimer-s-disease
#20
Mei-Fang Xiao, Desheng Xu, Michael T Craig, Kenneth A Pelkey, Chun-Che Chien, Yang Shi, Juhong Zhang, Susan Resnick, Olga Pletnikova, David Salmon, James Brewer, Steven Edland, Jerzy Wegiel, Benjamin Tycko, Alena Savonenko, Roger H Reeves, Juan C Troncoso, Chris J McBain, Douglas Galasko, Paul F Worley
Memory loss in Alzheimer's disease (AD) is attributed to pervasive weakening and loss of synapses. Here, we present findings supporting a special role for excitatory synapses connecting pyramidal neurons of the hippocampus and cortex with fast-spiking parvalbumin (PV) interneurons that control network excitability and rhythmicity. Excitatory synapses on PV interneurons are dependent on the AMPA receptor subunit GluA4, which is regulated by presynaptic expression of the synaptogenic immediate early gene NPTX2 by pyramidal neurons...
March 23, 2017: ELife
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