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https://www.readbyqxmd.com/read/27911314/updating-the-evidence-on-the-association-between-serum-cholesterol-and-risk-of%C3%A2-late-life-dementia-review-and%C3%A2-meta-analysis
#1
Kaarin J Anstey, Kimberly Ashby-Mitchell, Ruth Peters
BACKGROUND: Cohort studies have reported that midlife high total serum cholesterol (TC) is associated with increased risk of Alzheimer's disease (AD) in late-life but findings have been based on few studies and previous reviews have been limited by a lack of compatible data. OBJECTIVE: We synthesized all high quality data from cohort studies reporting on the association between total serum cholesterol measured and late-life cognitive outcomes including Alzheimer's disease (AD), vascular dementia (VaD), any dementia, mild cognitive impairment (MCI), and cognitive decline...
November 29, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27910738/cartilage-repair-in-the-degenerative-ageing-knee
#2
Mats Brittberg, Andreas H Gomoll, José A Canseco, Jack Far, Martin Lind, James Hui
Background and purpose - Cartilage damage can develop due to trauma, resulting in focal chondral or osteochondral defects, or as more diffuse loss of cartilage in a generalized organ disease such as osteoarthritis. A loss of cartilage function and quality is also seen with increasing age. There is a spectrum of diseases ranging from focal cartilage defects with healthy surrounding cartilage to focal lesions in degenerative cartilage, to multiple and diffuse lesions in osteoarthritic cartilage. At the recent Aarhus Regenerative Orthopaedics Symposium (AROS) 2015, regenerative challenges in an ageing population were discussed by clinicians and basic scientists...
December 2, 2016: Acta Orthopaedica
https://www.readbyqxmd.com/read/27909396/the-eye-as-a-biomarker-for-alzheimer-s-disease
#3
REVIEW
Jeremiah K H Lim, Qiao-Xin Li, Zheng He, Algis J Vingrys, Vickie H Y Wong, Nicolas Currier, Jamie Mullen, Bang V Bui, Christine T O Nguyen
Alzheimer's disease (AD) is a progressive neurodegenerative disorder resulting in dementia and eventual death. It is the leading cause of dementia and the number of cases are projected to rise in the next few decades. Pathological hallmarks of AD include the presence of hyperphosphorylated tau and amyloid protein deposition. Currently, these pathological biomarkers are detected either through cerebrospinal fluid analysis, brain imaging or post-mortem. Though effective, these methods are not widely available due to issues such as the difficulty in acquiring samples, lack of infrastructure or high cost...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27909096/excitatory-hindbrain-forebrain-communication-is-required-for-cisplatin-induced-anorexia-and-weight-loss
#4
Amber L Alhadeff, Ruby A Holland, Huiyuan Zheng, Linda Rinaman, Harvey J Grill, Bart C De Jonghe
: Cisplatin chemotherapy is commonly used to treat cancer despite severe energy balance side effects. In rats, cisplatin activates nucleus tractus solitarius (NTS) projections to the lateral parabrachial nucleus (lPBN), and calcitonin-gene related peptide (CGRP) projections from the lPBN to the central nucleus of the amygdala (CeA). We previously demonstrated that CeA glutamate receptor signaling mediates cisplatin-induced anorexia and body weight loss. Here, we use neuroanatomical tracing, immunofluorescence and confocal imaging to demonstrate that virtually all NTS→lPBN and lPBN→CeA CGRP projections co-express vesicular glutamate transporter 2 (VGLUT2), providing evidence that excitatory projections mediate cisplatin-induced energy balance dysregulation...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27908253/assessment-of-bone-quality-in-osteoporosis-treatment-with-bone-anabolic-agents-really-something-new
#5
Fabio Massimo Ulivieri, Renata Caudarella, Marzia Camisasca, Daniela Maria Cabrini, Ilaria Merli, Carmelo Messina, Luca Petruccio Piodi
Osteoporosis is a chronic pathologic condition, particularly of the elderly, in which a reduction of bone mineral density (BMD) weakens bone, leading to the so-called fragility fractures, most often of spine and femur. The gold standard exam for the quantitative measurement of BMD is the dual X-ray photon absorptiometry (DXA), a radiological method. However, a relevant number of fragility fractures occurs in the range of normal BMD values, meaning that also qualitative aspects of bone play a role, namely bone architecture and bone geometry...
December 1, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27901588/reciprocal-crosstalk-between-autophagic-and-endocrine-signaling-in-metabolic-homeostasis
#6
Rohit A Sinha, Brijesh K Singh, Paul M Yen
Autophagy is a cellular quality control and energy-providing process that is under strict control by intra- and extra-cellular stimuli. Recently, there has been an exponential increase in autophagy research and its implications for mammalian physiology. Autophagy de-regulation now is being implicated in many human diseases and its modulation has shown promising results in several pre-clinical studies. However, despite its first discovery as a hormone-regulated process by de Duve in the early 1960's, endocrine regulation of autophagy still remains poorly understood...
November 30, 2016: Endocrine Reviews
https://www.readbyqxmd.com/read/27901518/life-events-substance-use-psychological-distress-and-quality-of-life-in-male-and-female-french-gamblers
#7
Ce Line Bonnaire, Vivianne Kovess, Romain Guignard, Jean-Baptiste Richard, Enguerrand Du-Roscoat, Franc Ois Beck
BACKGROUND: Most studies on substance use, psychological distress, quality of life (QoL), and life events among gamblers are carried out on pathological gamblers seeking treatment, and sex differences are rarely investigated. The aim of this study was to explore the potential male-female differences in the relationship between these variables in a nationally representative French sample. METHODS: Three hundred thirty-two problem gamblers (PGs) and 25,314 non-problem gamblers or non-gamblers (NPGs) were evaluated for sociodemographic variables, gambling behavior, substance use, QoL, and life events...
November 2016: Annals of Clinical Psychiatry: Official Journal of the American Academy of Clinical Psychiatrists
https://www.readbyqxmd.com/read/27901048/sparsity-based-multi-height-phase-recovery-in-holographic-microscopy
#8
Yair Rivenson, Yichen Wu, Hongda Wang, Yibo Zhang, Alborz Feizi, Aydogan Ozcan
High-resolution imaging of densely connected samples such as pathology slides using digital in-line holographic microscopy requires the acquisition of several holograms, e.g., at >6-8 different sample-to-sensor distances, to achieve robust phase recovery and coherent imaging of specimen. Reducing the number of these holographic measurements would normally result in reconstruction artifacts and loss of image quality, which would be detrimental especially for biomedical and diagnostics-related applications...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900532/mir-148a-the-epigenetic-regulator-of-bone-homeostasis-is-increased-in-plasma-of-osteoporotic-postmenopausal-women
#9
Ajda Bedene, Simona Mencej Bedrač, Lea Ješe, Janja Marc, Peter Vrtačnik, Janez Preželj, Tomaž Kocjan, Tilen Kranjc, Barbara Ostanek
BACKGROUND: Osteoporosis is a prevalent skeletal disorder characterized by reduced bone mineral density and microarchitectural deterioration of bone tissue, resulting in bone fragility and low-trauma fractures. Imaging techniques are routinely used to detect low bone mass; however, they are unable to identify deterioration of bone quality. Recently, microRNAs have emerged as regulators of bone remodelling and potentially also as a new class of sensitive biomarkers of bone health to aid in diagnosis and treatment monitoring of osteoporosis...
November 29, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27900490/discordance-between-original-and-central-laboratories-in-er-and-her2-results-in-a-diverse-population-based-sample
#10
Jennifer J Griggs, Ann S Hamilton, Kendra L Schwartz, Weiqiang Zhao, Paul H Abrahamse, Dafydd G Thomas, Julie M Jorns, Rachel Jewell, Maria E Sibug Saber, Reina Haque, Steven J Katz
PURPOSE: To investigate the discordance between original and central laboratories in estrogen receptor (ER) status, in tumors originally deemed to be ER-negative, and in HER2 status in a diverse population-based sample. METHODS: In a follow-up study of 1785 women with Stage I-III breast cancer diagnosed between 2005 and 2007 in the Detroit and Los Angeles County SEER registry catchment areas, participants were asked to consent to reassessment of ER (in tumors originally deemed to be ER-negative) and HER2 status on archival tumor samples approximately four years after diagnosis...
November 29, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27899341/quality-of-mobile-phone-and-tablet-mobile-apps-for-speech-sound-disorders-protocol-for-an-evidence-based-appraisal
#11
Lisa M Furlong, Meg E Morris, Shane Erickson, Tanya A Serry
BACKGROUND: Although mobile apps are readily available for speech sound disorders (SSD), their validity has not been systematically evaluated. This evidence-based appraisal will critically review and synthesize current evidence on available therapy apps for use by children with SSD. OBJECTIVE: The main aims are to (1) identify the types of apps currently available for Android and iOS mobile phones and tablets, and (2) to critique their design features and content using a structured quality appraisal tool...
November 29, 2016: JMIR Research Protocols
https://www.readbyqxmd.com/read/27898339/dietary-phytochemicals-for-possible-preventive-and-therapeutic-option-of-uterine-fibroids-signaling-pathways-as-target
#12
REVIEW
Md Soriful Islam, James H Segars, Mario Castellucci, Pasquapina Ciarmela
A growing interest has emerged on dietary phytochemicals to control diverse pathological conditions. Unfortunately, dietary phytochemical research in uterine fibroids is still under construction. Uterine fibroids/leiomyomas are benign tumors developing from the myometrium of the uterus in premenopausal women. They may occur in more than 70% of women, and approximately 25% of women show clinically significant symptoms. These include heavy and prolonged menstrual bleeding, pelvic pressure (urinary frequency, incontinence, and difficulty with urination), pelvic pain, pelvic mass, infertility, and reproductive dysfunction...
October 20, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27896639/seom-clinical-guideline-for-bone-metastases-from-solid-tumours-2016
#13
C Grávalos, C Rodríguez, A Sabino, M Á Seguí, J A Virizuela, A Carmona, J Cassinello, D Isla, C Jara, M Martín
Bone metastases are common in many advanced solid tumours, being breast, prostate, thyroid, lung, and renal cancer the most prevalent. Bone metastases can produce skeletal-related events (SREs), defined as pathological fracture, spinal cord compression, need of bone irradiation or need of bone surgery, and hypercalcaemia. Patients with bone metastases experience pain, functional impairment and have a negative impact on their quality of life. Several imaging techniques are available for diagnosis of this disease...
November 28, 2016: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/27896452/optimization-of-image-quality-and-dose-in-digital-mammography
#14
Agnes M F Fausto, M C Lopes, M C de Sousa, Tânia A C Furquim, Anderson W Mol, Fermin G Velasco
Nowadays, the optimization in digital mammography is one of the most important challenges in diagnostic radiology. The new digital technology has introduced additional elements to be considered in this scenario. A major goal of mammography is related to the detection of structures on the order of micrometers (μm) and the need to distinguish the different types of tissues, with very close density values. The diagnosis in mammography faces the difficulty that the breast tissues and pathological findings have very close linear attenuation coefficients within the energy range used in mammography...
November 28, 2016: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/27893622/image-quality-and-artifacts-on-optical-coherence-tomography-angiography-comparison-of-pathologic-and-paired-fellow-eyes-in-65-patients-with-unilateral-choroidal-melanoma-treated-with-plaque-radiotherapy
#15
Emil A T Say, Sandor Ferenczy, George N Magrath, Wasim A Samara, Chloe T L Khoo, Carol L Shields
PURPOSE: To study image quality and artifacts seen on optical coherence tomography angiography (OCTA). METHODS: Sixty-five consecutive patients with unilateral posterior uveal melanoma treated with plaque radiotherapy had OCTA during follow-up. Optical coherence tomography angiography was performed on both the affected and fellow eye. Signal strength and frequency of image artifacts on en face images were compared between affected and fellow eyes. RESULTS: A total of 130 eyes in 65 patients were analyzed, the mean age at time of OCTA was 55 years (median: 56, range: 12-81 years), and 39 (39/65, 60%) were female...
November 23, 2016: Retina
https://www.readbyqxmd.com/read/27893197/importance-to-question-sinonasal-symptoms-and-to-perform-rhinoscopy-and-rhinomanometry-in-cystic-fibrosis-patients
#16
J M Bock, M Schien, C Fischer, L Naehrlich, M Kaeding, O Guntinas-Lichius, A Gerber, C Arnold, J G Mainz
OBJECTIVES: Cystic fibrosis (CF) patients almost regularly reveal sinonasal pathology. The purpose of this study was to assess association between objective and subjective measurements of sinonasal involvement comparing nasal airflow obtained by active anterior rhinomanometry (AAR), nasal endoscopic findings, and symptoms assessed with the Sino-Nasal Outcome Test-20 (SNOT-20). METHODS: Nasal cavities were explored by anterior rigid rhinoscopy and findings were compared to inspiratory nasal airflow measured by AAR to quantify nasal patency and subjective health-related quality of life in sinonasal disease obtained with the SNOT-20 questionnaire...
November 28, 2016: Pediatric Pulmonology
https://www.readbyqxmd.com/read/27892738/methodological-approaches-and-insights-on-protein-aggregation-in-biological-systems
#17
Paulo Bastos, Fábio Trindade, Adelino Leite-Moreira, Inês Falcão-Pires, Rita Ferreira, Rui Vitorino
The proper folding of native proteins is critical and dynamic, but inherently unstable. Therefore, proteins eventually end up adopting misfolded conformations which compromise their function and may even trigger aggregation. Risk factors for neurodegenerative, metabolic and heart diseases compromise cellular protein quality-control systems, promoting protein aggregation. Multiple protein post-translational modifications dynamically regulate protein aggregation and disaggregation in a very complex, intricate and delicate balance...
November 28, 2016: Expert Review of Proteomics
https://www.readbyqxmd.com/read/27891816/dll4-overexpression-increases-gastric-cancer-stem-progenitor-cell-self-renewal-ability-and-correlates-with-poor-clinical-outcome-via-notch-1-signaling-pathway-activation
#18
Zhi-Feng Miao, Hao Xu, Hui-Mian Xu, Zhen-Ning Wang, Ting-Ting Zhao, Yong-Xi Song, Ying-Ying Xu
Gastric cancer is one of the most common malignant diseases, and poses a serious threat to the quality of human life. Gastric cancer stem/progenitor cells (GCSPCs) have critical effects on tumor formation, affecting specific features of self-renewal and differentiation and playing a critical role in metastasis. The Notch-1 pathway is crucially important to GCSPCs and is regulated by DLL4. In this study, DLL4 and Nestin levels were measured in 383 gastric cancer tissue samples by immunohistochemistry, and the clinico-pathological features of patients assessed...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891787/evaluation-of-the-western-australian-register-of-developmental-anomalies-thirty-five-years-of-surveillance
#19
Wendy N Nembhard, Carol Bower
BACKGROUND: The birth defects component of the Western Australian Register for Developmental Anomalies (WARDA-BD) was evaluated to assess its efficiency, effectiveness, and data quality. METHODS: WARDA-BD was evaluated using the Centers for Disease Control and Prevention Guidelines for Evaluating Public Health Surveillance Systems and Data Quality Standards from the National Birth Defects Prevention Network. The evaluation included interviews with Register staff, local community organizations, parents, clinicians, and researchers; process observation; and secondary data analyses...
November 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
https://www.readbyqxmd.com/read/27890915/pharmacological-evidence-a-new-therapeutic-approach-to-the-treatment-of-chronic-heart-failure-through-sur2b-kir6-1-channel-in-endothelial-cells
#20
Shang Wang, Chao-Liang Long, Jun Chen, Wen-Yu Cui, Yan-Fang Zhang, Hao Zhang, Hai Wang
Both iptakalim (Ipt) and natakalim (Nat) activate the SUR2B/Kir6.1 channel, an ATP-sensitive potassium channel (KATP) subtype, with high selectivity. In this study we investigated the therapeutic effects of Ipt and Nat against isoproterenol-induced chronic heart failure (ISO-CHF) in rats, and demonstrated a new therapeutic approach to the treatment of CHF through activation of the SUR2B/Kir6.1 channel in endothelial cells. In ISO-CHF rats, oral administration of Nat (1, 3, 9 mg·kg(-1)·d(-1)) or Ipt (3 mg·kg(-1)·d(-1)) for 60 days significantly improved cardiac dysfunction, reversed cardiac remodeling, significantly attenuated the pathological increases in BNP levels, and improved endothelial dysfunction by adjusting the balance between endothelin and NO systems...
November 28, 2016: Acta Pharmacologica Sinica
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