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https://www.readbyqxmd.com/read/28329594/perforating-gout-of-the-ear
#1
Leigh Sutton, Palak Parekh
Gout is the most common cause of inflammatory arthritis in men over 40 [1]. The prevalence of gout in the US is approximately 3.9%. Tophus is a characteristic sign of gout and results when monosodium urate deposits at the joint, skin, or cartilage. Tophi develop in 12-35% of patients who are diagnosed with gout [2]. We report a case of a 70-year-old man who was diagnosed with squamous cell carcinoma of the helix via shave biopsy. During Mohs micrographic surgery, a vigorous foreign-body reaction was noted. Review of the initial biopsy slides identified crystals with pseudoepitheliomatous hyperplasia (PEH) rendering a diagnosis of gout...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28320363/the-mediational-role-of-physical-activity-social-contact-and-stroke-on-the-association-between-age-education-employment-and-dementia-in-an-asian-older-adult-population
#2
Edimansyah Abdin, Siow Ann Chong, Chao Xu Peh, Janhavi Ajit Vaingankar, Boon Yiang Chua, Swapna Verma, Anitha Jeyagurunathan, Saleha Shafie, Mythily Subramaniam
BACKGROUND: Our study aimed to investigate the pathways by which socio-demographic factors, modifiable health and lifestyle risk factors influence each other, and subsequently, lead to dementia. METHODS: We used data from the Well-being of the Singapore Elderly study, a nationally representative survey of the older adult population aged 60 years and above in Singapore. Dementia diagnosis was established using 10/66 dementia criteria. Structural equation modelling (SEM) without latent variable was applied to confirm the hypothesized model...
March 20, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28306719/chromosome-19q13-disruption-alters-expressions-of-cyp2a7-mia-and-mia-rab4b-lncrna-and-contributes-to-fap-like-phenotype-in-apc-mutation-negative-familial-colorectal-cancer-patients
#3
Lai Fun Thean, Yu Hui Wong, Michelle Lo, Carol Loi, Min Hoe Chew, Choong Leong Tang, Peh Yean Cheah
Familial adenomatous polyposis (FAP) is an autosomal-dominantly inherited form of colorectal cancer (CRC) caused by mutation in the adenomatous polyposis coli (APC) gene. Our ability to exhaustively screen for APC mutations identify microsatellite-stable and APC-mutation negative familial CRC patients, enabling us to search for novel genes. We performed genome-wide scan on two affected siblings of one family and 88 ethnicity- and gender-matched healthy controls to identify deletions shared by the siblings. Combined loss of heterozygosity, copy number and allelic-specific copy number analysis uncovered 5 shared deletions...
2017: PloS One
https://www.readbyqxmd.com/read/28291377/dual-energy-ct-applications-in-salivary-gland-lesions
#4
Ashish Chawla, Sivasubramanian Srinivasan, Tze Chwan Lim, Geoiphy Pulickal, Jagadish Shenoy, Wilfred Chin Guan Peh
The increasing availability of dual-energy computed tomography (DECT) has set the stage for an exciting era in CT technology. This technique is extensively used throughout the world with numerous centres working on the applications of DECT in various radiology subspecialty areas. DECT provides many advantages over the conventional single-energy scan. Instead of a single set of images, radiologists have access to multiple sets of images from a single acquisition. The DECT workstation enables the reader to generate images, according to the clinical setting, in order to answer a specific clinical question...
March 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28268070/post-carotid-endarterectomy-hypertension-part-1-association-with-pre-operative-clinical-imaging-and-physiological-parameters
#5
J E Newman, M J Bown, R D Sayers, J P Thompson, T G Robinson, B Williams, R Panerai, P Lacy, A R Naylor
OBJECTIVE/BACKGROUND: Post-endarterectomy hypertension (PEH) is a well recognised, but poorly understood, phenomenon after carotid endarterectomy (CEA) that is associated with post-operative intracranial haemorrhage, hyperperfusion syndrome, and cardiac complications. The aim of the current study was to identify pre-operative clinical, imaging, and physiological parameters associated with PEH. METHODS: In total, 106 CEA patients undergoing CEA under general anaesthesia underwent pre-operative evaluation of 24 hour ambulatory arterial blood pressure (BP), baroreceptor sensitivity, cerebral autoregulation, and transcranial Doppler measurement of cerebral blood flow velocity (CBFv) and pulsatility index...
March 3, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28262165/folie-%C3%A3-deux-and-fregoli-syndrome-with-greater-severity-in-the-secondary-a-case-report
#6
LETTER
David C L Teo, Abishek M Abraham, Andrew L H Peh
Folie à deux and Fregoli syndrome are rarely seen in clinical practice. We present a case in which these rare syndromes co-occur. Remarkably, in this case the 'secondary' develops a more serious illness course than the 'primary' and reciprocally induces a de novo Fregoli delusion in the 'primary'. This case discusses how socio-cultural factors, such as interdependent family dynamics, could have precipitated this rare variant of folie à deux. It also highlights the importance of making culturally-sensitive formulations for treatment...
February 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28261583/fractionated-concurrent-exercise-throughout-the-day-does-not-promote-acute-blood-pressure-benefits-in-hypertensive-middle-aged-women
#7
Luan M Azevêdo, Alice C de Souza, Laiza Ellen S Santos, Rodrigo Miguel Dos Santos, Manuella O M de Fernandes, Jeeser A Almeida, Emerson Pardono
Hypertension is a chronic disease that affects about 30% of the world's population, and the physical exercise plays an important role on its non-pharmacological treatment. Anywise, the dose-response of physical exercise fractionation throughout the day demands more investigation, allowing new exercise prescription possibilities. Therefore, this study aimed to analyze the acute blood pressure (BP) kinetics after 1 h of exercises and the BP reactivity after different concurrent exercise (CE) sessions and its fractioning of hypertensive middle-aged women...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28238226/dual-energy-ct-in-gout-a-review-of-current-concepts-and-applications
#8
REVIEW
Hong Chou, Teck Yew Chin, Wilfred C G Peh
Dual-energy computed tomography (DECT) is a relatively recent development in the imaging of gouty arthritis. Its availability and usage have become increasingly widespread in recent years. DECT is a non-invasive method for the visualisation, characterisation and quantification of monosodium urate crystal deposits which aids the clinician in the early diagnosis, treatment and follow-up of this condition. This article aims to give an up to date review and summary of existing literature on the role and accuracy of DECT in the imaging of gout...
March 2017: Journal of Medical Radiation Sciences
https://www.readbyqxmd.com/read/28224417/neuroanatomical-circuitry-between-kidney-and-rostral-elements-of-brain-a-virally-mediated-transsynaptic-tracing-study-in-mice
#9
Ye-Ting Zhou, Zhi-Gang He, Tao-Tao Liu, Mao-Hui Feng, Ding-Yu Zhang, Hong-Bing Xiang
The identity of higher-order neurons and circuits playing an associative role to control renal function is not well understood. We identified specific neural populations of rostral elements of brain regions that project multisynaptically to the kidneys in 3-6 days after injecting a retrograde tracer pseudorabies virus (PRV)-614 into kidney of 13 adult male C57BL/6J strain mice. PRV-614 infected neurons were detected in a number of mesencephalic (e.g. central amygdala nucleus), telencephalic regions and motor cortex...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28222574/separate-aftereffects-of-morning-and-evening-exercise-on-ambulatory-blood-pressure-in-pre-hypertensive-men
#10
Leandro C Brito, Rafael A Rezende, Caroline Mendes, Natan D Silva-Junior, Taís Tinucci, José Cipolla-Neto, Claudia L Forjaz
BACKGROUND: Clinic post-exercise hypotension (PEH) is different after aerobic exercise performed in the morning and in the evening. Thus, ambulatory PEH should also differ after exercises conducted at different times of day. However, because of the circadian pattern of BP, ambulatory PEH should be assessed considering a control condition. Thus, this study was designed to verify the effects of morning and evening exercises on post-exercise ambulatory BP averages and circadian parameters by comparing responses obtained at each time of day after an exercise and a control session...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28213936/axial-torsion-of-meckel-s-diverticulum
#11
Vincent T Y Tiong, Trishna Shimpi, Sumer Shikhare, Lester R C Chong, Wilfred C G Peh
No abstract text is available yet for this article.
February 17, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28210742/clinics-in-diagnostic-imaging-174-l5-vertebral-superior-facet-osteoblastoma-ob
#12
Manickam Subramanian, Hong Chou, Kabilan Chokkappan, Wilfred Cg Peh
A 25-year-old man presented with chronic low back pain and occasional radiation to the right lower limb. Magnetic resonance imaging and computed tomography (CT) of the lumbar spine showed an osteolytic expansile lesion with a central sclerotic nidus in the right superior facet of the L5 vertebra and surrounding marrow oedema. The diagnosis of osteoblastoma was made based on imaging findings and confirmed after CT-guided biopsy. Radiofrequency ablation of the lesion was successfully performed. The patient tolerated the procedure well and showed symptomatic relief...
February 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28204869/-corneal-cell-therapy-an-overview
#13
REVIEW
M Fuest, G Hin-Fai Yam, G Swee-Lim Peh, P Walter, N Plange, J S Mehta
In recent years, the cultivation and expansion of primary corneal cells has made significant progress. The transplantation of cultured limbal epithelial cells represents a successful and established treatment of the ocular surface. Cultivated corneal endothelial cells are undergoing a clinical trial in Japan. Stromal keratocytes can now be expanded in vitro. A wide range of stem cell sources is being tested in vitro and animal models for their possible application in corneal cell therapy. This article gives an overview of recent advancements and prevailing limitations for the use of different cell sources in the therapy of corneal disease...
February 15, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28186405/thin-film-nanocomposite-tfn-membranes-incorporated-with-super-hydrophilic-metal-organic-framework-mof-uio-66-toward-enhancement-of-water-flux-and-salt-rejection
#14
Dangchen Ma, Shing Bo Peh, Gang Han, Shing Bor Chen
Zirconiumv (IV)-carboxylate metal-organic framework (MOF) UiO-66 nanoparticles were successfully synthesized and incorporated in the polyamide (PA) selective layer to fabricate novel thin-film nanocomposite (TFN) membranes. Compared to unmodified pure polyamide thin-film composite (TFC) membranes, the incorporation of UiO-66 nanoparticles significantly changes the membrane morphology and chemistry, leading to an improvement of intrinsic separation properties due to the molecular sieving and superhydrophilic nature of UiO-66 particles...
March 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28173996/perifornical-hypothalamic-pathway-to-the-adrenal-gland-role-for-glutamatergic-transmission-in-the-glucose-counter-regulatory-response
#15
A Sabetghadam, W S Korim, A J M Verberne
Adrenaline is an important counter-regulatory hormone that helps restore glucose homeostasis during hypoglycaemia. However, the neurocircuitry that connects the brain glucose sensors and the adrenal sympathetic outflow to the chromaffin cells is poorly understood. We used electrical microstimulation of the perifornical hypothalamus (PeH) and the rostral ventrolateral medulla (RVLM) combined with adrenal sympathetic nerve activity (ASNA) recording to examine the relationship between the RVLM, the PeH and ASNA...
February 2, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28111692/clinics-in-diagnostic-imaging-173-scimitar-syndrome-with-horseshoe-lung
#16
Vishal Gaikwad, Ashish Chawla, Tze Chwan Lim, Wilfred Cg Peh
A 56-year-old Chinese man presented with giddiness and vertigo. Subsequent chest radiography showed the classic scimitar sign of an abnormal pulmonary venous return. Further evaluation with non-contrast computed tomography substantiated the finding of a partial anomalous venous drainage pattern and identified an associated rare lung anomaly, horseshoe lung. The imaging findings of scimitar syndrome and its association with horseshoe lung are reviewed.
January 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28106744/oligonucleotide-therapy-for-obstructive-and-restrictive-respiratory-diseases
#17
REVIEW
Wupeng Liao, Jinrui Dong, Hong Yong Peh, Lay Hong Tan, Kah Suan Lim, Li Li, Wai-Shiu Fred Wong
Inhaled oligonucleotide is an emerging therapeutic modality for various common respiratory diseases, including obstructive airway diseases like asthma and chronic obstructive pulmonary disease (COPD) and restrictive airway diseases like idiopathic pulmonary fibrosis (IPF). The advantage of direct accessibility for oligonucleotide molecules to the lung target sites, bypassing systemic administration, makes this therapeutic approach promising with minimized potential systemic side effects. Asthma, COPD, and IPF are common chronic respiratory diseases, characterized by persistent airway inflammation and dysregulated tissue repair and remodeling, although each individual disease has its unique etiology...
January 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28093718/ribosomal-protein-s3-gene-silencing-protects-against-experimental-allergic-asthma
#18
Jinrui Dong, Wupeng Liao, Hong Yong Peh, Tze Khee Chan, W S Daniel Tan, Li Li, Amy Yong, W S Fred Wong
BACKGROUND AND PURPOSE: Ribosomal protein S3 (RPS3) is a 40S ribosomal protein of the S3P family essential for implementing protein translation. RPS3 has recently been found to interact with the p65 subunit of the NF-κB complex and promote p65 DNA-binding activity. Persistent activation of the NF-κB pathway is evident in allergic asthma. We hypothesized that gene silencing of lung RPS3 can ameliorate allergic airway inflammation. EXPERIMENTAL APPROACH: The gene silencing efficacy of RPS3 siRNA was screened in three different mouse cell lines by real-time PCR and immunoblotting...
April 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28063123/minimally-invasive-surgery-should-be-the-standard-of-care-for-paraesophageal-hernia-repair
#19
Francisco Schlottmann, Paula D Strassle, Timothy M Farrell, Marco G Patti
BACKGROUND: It is unclear if minimally invasive surgery (MIS) has been universally embraced for paraesophageal hernia (PEH) repair. The aims of this study were: (a) to assess the national utilization of MIS for PEH repair and (b) to compare the perioperative outcomes between MIS and open procedures METHODS: A retrospective population-based analysis was performed using the National Inpatient Sample for the period 2000-2013. Adult patients (≥18 years old) who underwent PEH repair were included...
January 6, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28061402/sequentially-crosslinked-bioactive-hydrogels-as-nano-patterned-substrates-with-customizable-stiffness-and-degradation-for-corneal-tissue-engineering-applications
#20
Muhammad Rizwan, Gary S L Peh, Heng-Pei Ang, Nyein Chan Lwin, Khadijah Adnan, Jodhbir S Mehta, Wui Siew Tan, Evelyn K F Yim
Naturally-bioactive hydrogels like gelatin provide favorable properties for tissue-engineering but lack sufficient mechanical strength for use as implantable tissue engineering substrates. Complex fabrication or multi-component additives can improve material strength, but often compromises other properties. Studies have shown gelatin methacrylate (GelMA) as a bioactive hydrogel with diverse tissue growth applications. We hypothesize that, with suitable material modifications, GelMA could be employed for growth and implantation of tissue-engineered human corneal endothelial cell (HCEC) monolayer...
March 2017: Biomaterials
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