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https://www.readbyqxmd.com/read/28920479/reticular-erythema-and-hyperpigmentation-in-a-woman
#1
Weijie Gu, Dongwen Shi, Xiaowen Pang, Fei Shi, Wei Liu
No abstract text is available yet for this article.
September 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28918332/control-of-absence-epilepsy-seizures-in-specific-relay-nuclei-of-thalamus
#2
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/28916470/receptive-field-properties-of-cat-perigeniculate-neurons-correlate-with-excitatory-and-inhibitory-connectivity-to-lgn-relay-neurons
#3
Hironobu Osaki, Tomoyuki Naito, Shogo Soma, Hiromichi Sato
The cat perigeniculate nucleus (PGN) is a visual sector of the thalamic reticular nucleus that consists of GABAergic neurons. It receives excitatory axon-collateral input from relay neurons of the dorsal lateral geniculate nucleus (LGN) to which it provides inhibitory input. Thus, it is usually argued that the PGN works as feedback inhibition to the LGN. At the single neuron level, however, this circuit can also provide lateral inhibition. Which inhibition dominates in the visual circuit of the thalamus has yet to be well characterized...
September 12, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28914464/expression-of-caveolin-1-in-the-interfollicular-but-not-the-follicle-associated-epithelial-cells-in-the-bursa-of-fabricius-of-chickens
#4
Ildikó Bódi, Krisztina Minkó, Orsolya Fölker, Zsófia Benyeda, Balázs Felföldi, Attila Magyar, Anna Kiss, Vilmos Palya, Imre Oláh
The surface epithelium of the bursa of Fabricius consists of interfollicular (IFE) and follicle-associated epithelium (FAE). The IFE comprises (i) cylindrical-shaped secretory cells (SC) and (ii) cuboidal basal cells (BCs). The FAE provides histological and two-way functional connections between the bursal lumen and medulla of the follicle. We used a carbon solution and anti-caveolin-1 (Cav-1) to study the endocytic activity of FAE. Carbon particles entered the intercellular space of FAE, but the carbon particles were not internalized by the FAE cells...
September 15, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28905541/the-role-of-new-imaging-methods-in-managing-age-related-macular-degeneration
#5
Stephen James Talks, Akhunzada Muhammad Aftab, Imran Ashfaq, Taha Soomro
The use of imaging for age-related macular degeneration (AMD) depends on how it benefits clinical management and on reimbursement. The latter should relate to the former. This review assesses how different forms of AMD can be imaged and what information this provides. For nonneovascular AMD high-resolution optical coherence tomography (OCT), autofluorescence, and near infrared imaging can identify the type of drusen, such as reticular pseudodrusen, which influences prognosis, and the amount of atrophy, for which phase 3 trials are underway...
September 14, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28903964/clinical-profile-of-pythium-keratitis-perioperative-measures-to-reduce-risk-of-recurrence
#6
Shweta Agarwal, Geetha Iyer, Bhaskar Srinivasan, Mamta Agarwal, Shobha Panchalam Sampath Kumar, Lily K Therese
PURPOSE: To report the clinical profile and role of perioperative adjunctive measures to reduce the risk of recurrence in Pythium insidiosum keratitis. METHODS: Retrospective analysis of 10 eyes of 10 patients with P. insidiosum keratitis. Diagnosis was confirmed by PCR DNA sequencing. RESULTS: 7out of 10 patients were from urban locales, and none had any obvious history of injury with vegetative matter and were being treated for fungal keratitis...
September 13, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28894330/metastatic-pulmonary-calcification-high-resolution-computed-tomography-findings-in-23-cases
#7
Luciana Camara Belém, Carolina A Souza, Arthur Soares Souza, Dante Luiz Escuissato, Bruno Hochhegger, Luiz Felipe Nobre, Rosana Souza Rodrigues, Antônio Carlos Portugal Gomes, Claudio S Silva, Marcos Duarte Guimarães, Gláucia Zanetti, Edson Marchiori
OBJECTIVE: The aim of this study was to evaluate the high-resolution computed tomography (HRCT) findings in patients diagnosed with metastatic pulmonary calcification (MPC). MATERIALS AND METHODS: We retrospectively reviewed the HRCT findings from 23 cases of MPC [14 men, 9 women; mean age, 54.3 (range, 26-89) years]. The patients were examined between 2000 and 2014 in nine tertiary hospitals in Brazil, Chile, and Canada. Diagnoses were established by histopathologic study in 18 patients and clinical-radiological correlation in 5 patients...
July 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28889004/quantitative-vascular-neuroimaging-of-the-rat-brain-using-superparamagnetic-nanoparticles-new-insights-on-vascular-organization-and-brain-function
#8
Codi A Gharagouzloo, Liam Timms, Ju Qiao, Zihang Fang, Joseph Nneji, Aniket Pandya, Praveen Kulkarni, Anne L van de Ven, Craig Ferris, Srinivas Sridhar
A method called Quantitative Ultra-Short Time-to-Echo Contrast Enhanced (QUTE-CE) Magnetic Resonance Imaging (MRI) which utilizes superparamagnetic iron oxide nanoparticles (SPIONs) as a contrast agent to yield positive contrast angiograms with high clarity and definition is applied to the whole live rat brain. QUTE-CE MRI intensity data are particularly well suited for measuring quantitative cerebral blood volume (qCBV). A global map of qCBV in the awake resting-state with unprecedented detail was created via application of a 3D MRI rat brain atlas with 173 segmented and annotated brain areas...
September 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28887886/unusually-recalcitrant-reticular-skin-lesions-in-a-young-woman
#9
Lukas Kofler, Martin Schaller, Jürgen Bauer
No abstract text is available yet for this article.
September 9, 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28883453/%C3%AE-catenin-twist-and-snail-transcriptional-regulation-of-emt-in-smokers-and-copd-and-relation-to-airflow-obstruction
#10
Malik Quasir Mahmood, Eugene Haydn Walters, Shakti D Shukla, Steve Weston, Hans Konrad Muller, Chris Ward, Sukhwinder Singh Sohal
COPD is characterised by poorly reversible airflow obstruction usually due to cigarette smoking. The transcription factor clusters of β-catenin/Snail1/Twist has been implicated in the process of epithelial mesenchymal transition (EMT), an intermediate between smoking and airway fibrosis, and indeed lung cancer. We have investigated expression of these transcription factors and their "cellular localization" in bronchoscopic airway biopsies from patients with COPD, and in smoking and non-smoking controls. An immune-histochemical study compared cellular protein expression of β-catenin, Snail1 and Twist, in these subject groups in 3 large airways compartment: epithelium (basal region), reticular basement membrane (Rbm) and underlying lamina propria (LP)...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28882931/livedoid-eruption-in-a-patient-affected-by-t-%C3%AE-%C3%AE-large-granular-lymphocyte-leukaemia
#11
Giulia Biolo, Giorgia Sacco, Irene Russo, Mauro Alaibac
Livedo is an ischaemic dermopathy characterised by a reddish-blue to violaceous mottling of the skin with a net-like reticular appearance. Livedo has been described in association with several medical conditions including lymphoproliferative disorders. Here, we describe the case of a 60-year-old woman who was presented with asymptomatic and persistent livedoid eruption on her trunk, lower and upper extremities as manifestation of an indolent form of T-γδ large granular lymphocyte leukaemia. To the best of our knowledge, this is the first report describing the association between livedo reticularis and T-γδ large granular lymphocyte leukaemia...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28880879/lotus-overexpression-accelerates-neuronal-plasticity-after-focal-brain-ischemia-in-mice
#12
Hajime Takase, Yuji Kurihara, Taka-Akira Yokoyama, Nobutaka Kawahara, Kohtaro Takei
Nogo receptor-1 (NgR1) and its ligands inhibit neuronal plasticity and limit functional recovery after brain damage such as ischemic stroke. We have previously shown that lateral olfactory tract usher substance (LOTUS) antagonizes NgR1-mediated signaling. Here, we investigated whether LOTUS enhances neuronal plasticity and functional recovery after brain focal ischemia in adult mice. Focal ischemic infarcts were induced in wild-type and LOTUS-overexpressing transgenic mice via middle cerebral artery occlusion...
2017: PloS One
https://www.readbyqxmd.com/read/28879009/iron-based-magnetic-molecular-imprinted-polymers-and-their-application-in-removal-and-determination-of-di-n-pentyl-phthalate-in-aqueous-media
#13
Jing Li, Qingxiang Zhou, Yongyong Yuan, Yalin Wu
Iron-based magnetic molecular imprinted polymers (Fe@SiO2@MIP) were synthesized for highly selective removal and recognition of di-n-pentyl phthalate (DnPP) from water. Well-defined core-shell Fe@SiO2 nanoparticles (less than 70 nm) were decorated on MIPs reticular layers to endow DnPP-MIPs with magnetic property for the first time. Five other phthalic acid esters including dimethyl phthalate, diethyl phthalate, dipropyl phthalate, di-n-butyl phthalate and di-iso-octyl phthalate were used to investigate the adsorptive selectivity to DnPP...
August 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28872497/myoepithelioma-of-the-nasal-septum
#14
Seo Bin Kim, Jae Hwan Kwon
Myoepithelioma is defined as myoepithelial cells composed of tumor with solid, myxoid, and reticular growth pattern by the World Health Organization. It is a rare neoplasm that arises in the major salivary gland or minor salivary gland comprising approximately 1% of all salivary gland tumor. This neoplasm occurs in the parotid gland and soft palate mostly, which can be found in other organs. However, up to now, myoepithelioma of nasal septum has not been reported in English medical literature. Histologically, it is grouped as spindle, epitheliod, reticular, and clear cell types...
September 1, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28871936/xanthoma-like-skin-changes-in-an-elderly-woman-with-a-normal-lipid-profile
#15
Piotr Nockowski, Zdzisław Woźniak, Adam Reich, Joanna Maj
Dear Editor, An 83-year-old woman developed yellow-brownish infiltrates, nodules, and tumors mimicking xanthomas, mostly involving the periorbital and chest area within three months (Figure 1). She had no abnormalities in serum cholesterol or triglycerides levels. A detailed laboratory analysis revealed the presence of mild monoclonal gammopathy with a presence of immunoglobulin G (IgG) kappa light chains; however, according to hematologist consultation, it did not require medical intervention. Imaging assessment and ultrasound examination did not show any specific involvement of internal organs...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28865483/suppression-of-cortical-seizures-by-optic-stimulation-of-the-reticular-thalamus-in-pv-mhchr2-yfp-bac-transgenic-mice
#16
Wei Jen Chang, Wei Pang Chang, Bai Chuang Shyu
Deep brain stimulation in thalamic regions has been proposed as a treatment for epilepsy. The electrical current excites thalamocortical activity which is controlled by γ-aminobutyric acid (GABA)ergic interneurons in the reticular thalamic nucleus (nRT). Previous studies showed that enhancing GABAergic inhibitory strength in the nRT reduces the duration and power of seizures, indicating that the thalamus plays an important role in modulating cortical seizures. The aim of the present study was to apply optogenetics to study the role of the nRT in modulating cortical seizures...
September 2, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28862210/pulmonary-toxicity-following-bleomycin-use-a-single-center-experience
#17
Irappa Madabhavi, Gaurang Modi, Apurva Patel, Asha Anand, Harsha Panchal, Sonia Parikh
BACKGROUND: Bleomycin-induced pulmonary (BIP) toxicity is a notorious entity and cropped up in roughly 10% of cases. The aim of the study is to evaluate BIP at our tertiary care cancer center. PATIENTS AND METHODS: This is a retrospective, analytical study conducted at a tertiary care center from January 1998 to December 2012. Records of all the patients who were offered bleomycin chemotherapy as an integral part of adriamycin, bleomycin, vinblastine, and dacarbazine or bleomycin, etoposide, and cisplatin regimen in Hodgkin disease (HD) or germ cell tumor (GCT) were studied for the study inclusion criteria...
July 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28859493/characterizing-the-histopathology-of-natural-co-infection-with-marek-s-disease-virus-and-subgroup-j-avian-leukosis-virus-in-egg-laying-hens
#18
Yawen Wen, Qi Huang, Chengcheng Yang, Ling Pan, Guijun Wang, Kezong Qi, Hongmei Liu
Marek's disease virus (MDV) and avian leukosis virus (ALV) are known to cause tumours in egg-laying hens. Here, we investigated the aetiology of tumours in a flock of egg-laying hens vaccinated against MDV. We carried out gross pathology and histopathological examinations of the diseased tissues, identified virus antigen and sequenced viral oncogenes to elucidate the cause of death in 21-22-wk-old hens. At necropsy, diseased hens had distinctly swollen livers, spleens, and proventriculus, and white tumour nodules in the liver...
September 1, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28854261/gemcitabine-treatment-induces-endoplasmic-reticular-er-stress-and-subsequently-upregulates-urokinase-plasminogen-activator-upa-to-block-mitochondrial-dependent-apoptosis-in-panc-1-cancer-stem-like-cells-cscs
#19
Li Wang, Yi Zhang, Weiguo Wang, Yunjie Zhu, Yang Chen, Bole Tian
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is an aggressive cancer with poor survival rates. The presence of cancer stem-like cells (CSCs) is believed to be among the underlying reasons for the aggressiveness of PDAC, which contributes to chemoresistance and recurrence. However, the mechanisms that induce chemoresistance and inhibit apoptosis remain largely unknown. METHODS: We used serum-free medium to enrich CSCs from panc-1 human pancreatic cancer cells and performed sphere formation testing, flow cytometry, quantitative reverse transcription polymerase chain reaction (RT-qPCR) and semi-quantitative western blotting to confirm the stemness of panc-1 CSCs...
2017: PloS One
https://www.readbyqxmd.com/read/28852800/-myoclonus-as-a%C3%A2-movement-disorder
#20
REVIEW
H-M Meinck
Myoclonus is often a diagnostic and therapeutic challenge due to its broad phenomenological variability and limited therapeutic options. This article gives a short survey and characterizes in detail two common types of myoclonus, cortical myoclonus and reticular reflex myoclonus. Clinical testing and electrophysiological investigations provide relevant local diagnostic indications for the generating structure(s). Such indications would influence not only the strategies of neuroimaging and laboratory investigations aimed at clarifying the underlying cause but also the selection of drugs to suppress myoclonus...
August 29, 2017: Der Nervenarzt
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