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https://www.readbyqxmd.com/read/28542565/promiscuous-signaling-by-a-regulatory-system-unique-to-the-pandemic-pmen1-pneumococcal-lineage
#1
Anagha Kadam, Rory A Eutsey, Jason Rosch, Xinyu Miao, Mark Longwell, Wenjie Xu, Carol A Woolford, Todd Hillman, Anfal Shakir Motib, Hasan Yesilkaya, Aaron P Mitchell, N Luisa Hiller
Streptococcus pneumoniae (pneumococcus) is a leading cause of death and disease in children and elderly. Genetic variability among isolates from this species is high. These differences, often the product of gene loss or gene acquisition via horizontal gene transfer, can endow strains with new molecular pathways, diverse phenotypes, and ecological advantages. PMEN1 is a widespread and multidrug-resistant pneumococcal lineage. Using comparative genomics we have determined that a regulator-peptide signal transduction system, TprA2/PhrA2, was acquired by a PMEN1 ancestor and is encoded by the vast majority of strains in this lineage...
May 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28538182/targeting-metabolic-reprogramming-by-influenza-infection-for-therapeutic-intervention
#2
Heather S Smallwood, Susu Duan, Marie Morfouace, Svetlana Rezinciuc, Barry L Shulkin, Anang Shelat, Erika E Zink, Sandra Milasta, Resha Bajracharya, Ajayi J Oluwaseum, Martine F Roussel, Douglas R Green, Ljiljana Pasa-Tolic, Paul G Thomas
Influenza is a worldwide health and financial burden posing a significant risk to the immune-compromised, obese, diabetic, elderly, and pediatric populations. We identified increases in glucose metabolism in the lungs of pediatric patients infected with respiratory pathogens. Using quantitative mass spectrometry, we found metabolic changes occurring after influenza infection in primary human respiratory cells and validated infection-associated increases in c-Myc, glycolysis, and glutaminolysis. We confirmed these findings with a metabolic drug screen that identified the PI3K/mTOR inhibitor BEZ235 as a regulator of infectious virus production...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28537342/assessing-the-risk-of-sarcopenia-in-the-elderly-the-mini-sarcopenia-risk-assessment-msra-questionnaire
#3
A P Rossi, R Micciolo, S Rubele, F Fantin, C Caliari, E Zoico, G Mazzali, E Ferrari, S Volpato, M Zamboni
OBJECTIVES: to validate the MSRA questionnaire proposed as prescreening tool for sarcopenia, in a population of community-dwelling elderly subjects. DESIGN: observational study. SETTING: community dwelling elderly subjects. PARTICIPANTS: 274 community dwelling elderly subjects, 177 women and 97 men, aged 66-78 years. MEASUREMENTS: Based on EWGSOP diagnostic criteria subjects were classified as sarcopenic and non-sarcopenic...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28536811/listeriosis-during-pregnancy
#4
REVIEW
Mitko Madjunkov, Shahnaz Chaudhry, Shinya Ito
PURPOSE: Listeriosis is a rare foodborne illness caused by Listeria monocytogenes. It can be transmitted by consuming contaminated ready-to-eat food, long shelf-life products, deli meats, and soft cheeses. Listeria has a predilection to affect immunocompromised patients, elderly people, pregnant women and neonates. In particular, pregnant women are at ~18 times greater risk of infection than general population due to specific pregnancy-related suppressed cell-mediated immunity and placental tropism of L...
May 23, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28534301/effects-of-acetyl-l-carnitine-in-diabetic-neuropathy-and-other-geriatric-disorders
#5
REVIEW
G Sergi, S Pizzato, F Piovesan, C Trevisan, N Veronese, E Manzato
A long history of diabetes mellitus and increasing age are associated with the onset of diabetic neuropathy, a painful and highly disabling complication with a prevalence peaking at 50% among elderly diabetic patients. Acetyl-L-carnitine (ALC) is a molecule derived from the acetylation of carnitine in the mitochondria that has an essential role in energy production. It has recently been proposed as a therapy to improve the symptoms of diabetic neuropathy. ALC is widely distributed in mammalian tissues, including the brain, blood-brain barrier, brain neurons, and astrocytes...
May 22, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28533260/relationship-between-monocyte-platelet-aggregation-and-endothelial-function-in-middle-aged-and-elderly-adults
#6
Andrew Haynes, Matthew D Linden, Elisa Robey, Louise H Naylor, Kay L Cox, Nicola T Lautenschlager, Daniel J Green
Low-grade inflammation, endothelial dysfunction, and platelet hyper-reactivity to agonists are associated with an increased risk of cardiovascular events. In vitro and animal studies infer an inverse mechanistic relationship between platelet activation and the production of endothelium-derived nitric oxide and prostacyclin. This concept is supported by evidence of an inverse relationship between endothelial function and platelet activation in high-risk cardiac patients. The aim of this study was to investigate what relationship, if any, exists between platelet and endothelial function in healthy, middle-aged, and elderly adults...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28523472/assessment-of-coronary-artery-by-prospective-ecg-triggered-256-multi-slice-ct-on-children-with-congenital-heart-disease
#7
Li-Ping Yao, Li Zhang, Hui-Ming Li, Ming Ding, Ling-Wei Yu, Xin Yang, Xiao-Ming Li, Kun Sun
This study aims to investigate the imaging quality and radiation dose of prospective ECG-triggered 256 multi-slice computer tomography (MSCT) in accessing the coronary artery (CA) in children. Coronary arteries of 149 children were evaluated using prospective ECG-triggered 256 MSCT with the same system settings. A four-point scoring system was applied to study the capability of MSCT in detecting CA in these patients. Signal, noise and contrast-to-noise ratios (CNR) were analyzed to investigate the association of image quality with age...
May 18, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28523253/cell-therapy-products-in-alzheimer-disease
#8
REVIEW
Hyeon Jin Song, Tae-Hee Kim, Hae-Hyeog Lee, Jun-Mo Kim, Yoo Jin Park, Arum Lee, Soo Ah Kim, Hye Ji Choi
We are rapidly becoming an aging society, with the ongoing increase in challenges of the elderly. The age-related cognitive decline in accordance with aging society is of major importance in public health. Recent studies have proved the impacts of sex-steroid hormone on the brain; compliant with aging, menopause and decrease in estrogen have an effect on the occurrence and prevention of Alzheimer's disease. A new hypothesis states that Alzheimer's disease is a postmenopausal dementia, and is a negative form of estrogen deficiency...
April 2017: Journal of Menopausal Medicine
https://www.readbyqxmd.com/read/28515934/zolpidem-prescribing-practices-before-and-after-food-and-drug-administration-required-product-labeling-changes
#9
Jessica L Norman, Danielle R Fixen, Joseph J Saseen, Laura M Saba, Sunny A Linnebur
BACKGROUND: Women have higher morning serum zolpidem concentrations than men after taking an evening dose, potentially leading to increased risk of harm. On 19 April 2013, the United States Food and Drug Administration required labeling changes for zolpidem, recommending an initial dose of no greater than 5 mg (immediate release) or 6.25 mg (controlled release) per night in women. OBJECTIVES: The primary objective of this study was to compare prescribing practices before and after the 2013 zolpidem labeling change...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28504994/preoperative-low-dose-aspirin-exposure-and-outcomes-after-emergency-neurosurgery-for-traumatic-intracranial-hemorrhage-in-elderly-patients
#10
Alex T Lee, Arni Gagnidze, Sharon R Pan, Pimwan Sookplung, Bala Nair, Shu-Fang Newman, Alon Ben-Ari, Ahmed Zaky, Kevin Cain, Monica S Vavilala, Irene Rozet
BACKGROUND: Antiplatelet medications are usually discontinued before elective neurosurgery, but this is not an option for emergent neurosurgery. We performed a retrospective cohort study to examine whether preoperative aspirin use was associated with worse outcomes after emergency neurosurgery in elderly patients. METHODS: We analyzed all cases of emergency neurosurgical procedures for traumatic intracranial hemorrhage from 2008 to 2012 at a level 1 trauma center...
May 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28502917/the-role-of-heparin-cofactor-%C3%A2-in-the-regulation-of-insulin-sensitivity-and-maintenance-of-glucose-homeostasis-in-humans-and-mice
#11
Kiyoe Kurahashi, Seika Inoue, Sumiko Yoshida, Yasumasa Ikeda, Kana Morimoto, Ryoko Uemoto, Kazue Ishikawa, Takeshi Kondo, Tomoyuki Yuasa, Itsuro Endo, Masato Miyake, Seiichi Oyadomari, Toshio Matsumoto, Masahiro Abe, Hiroshi Sakaue, Ken-Ichi Aihara
AIM: Accelerated thrombin action is associated with insulin resistance. It is known that upon activation by binding to dermatan sulfate proteoglycans, heparin cofactor Ⅱ(HCⅡ) inactivates thrombin in tissues. Because HCⅡ may be involved in glucose metabolism, we investigated the relationship between plasma HCⅡ activity and insulin resistance. METHODS AND RESULTS: In a clinical study, statistical analysis was performed to examine the relationships between plasma HCⅡ activity, glycosylated hemoglobin (HbA1c), fasting plasma glucose (FPG), and homeostasis model assessment-insulin resistance (HOMA-IR) in elderly Japanese individuals with lifestyle-related diseases...
May 15, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28501801/a-rare-coding-allele-in-ifih1-is-protective-for-psoriatic-arthritis
#12
Ashley Budu-Aggrey, John Bowes, Philip E Stuart, Matthew Zawistowski, Lam C Tsoi, Rajan Nair, Deepak Rohit Jadon, Neil McHugh, Eleanor Korendowych, James T Elder, Anne Barton, Soumya Raychaudhuri
OBJECTIVES: Psoriatic arthritis (PsA) is an inflammatory arthritis associated with psoriasis. While many common risk alleles have been reported for association with PsA as well as psoriasis, few rare coding alleles have yet been identified. METHODS: To identify rare coding variation associated with PsA risk or protection, we genotyped 41 267 variants with the exome chip and investigated association within an initial cohort of 1980 PsA cases and 5913 controls. Genotype data for an independent cohort of 2234 PsA cases and 5708 controls was also made available, allowing for a meta-analysis to be performed with the discovery dataset...
May 13, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28494715/the-click-test-a-novel-tool-to-quantify-the-age-related-decline-of-fast-motor-sequencing-of-the-thumb
#13
Florian Bodranghien, Helene Mahé, Benjamin Baude, Mario U Manto, Yves Busegnies, Stéphane Camut, Christophe Habas, Peter Marien, Giovanni de Marco, Kim van Dun
BACKGROUND: The thumb plays a critical role for manual tasks during the activities of daily life and the incidence of neurological or musculoskeletal disorders affecting the voluntary movements of the thumb is high in the elderly. There is currently no tool to assess repetitive motor sequencing of the thumb during ageing. OBJECTIVES: To report a novel procedure (the Click Test) assessing the effects of ageing on fast motor sequencing of the thumb. METHODS: Healthy subjects (n = 252; mean age +/- SD: 49...
May 10, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28484666/hearing-and-balance-disorders-in-the-state-of-hawai-i-demographics-and-demand-for-services
#14
Mohsin Ahmed M Shaikh, James W Hall, Cindy McManus, Henry L Lew
Hearing and balance disorders affect people of all ages. Among children, hearing loss affects speech and language development, academic performance, and psychosocial development. Hearing loss in adults negatively impacts work productivity, cognitive function, and psychosocial status. Prevalence of hearing loss in children in Hawai'i is higher than the national average. Research indicates that hearing loss is a prevalent condition among veterans and advanced age adults. This is of particular concern in Hawai'i as the state is home to many military training facilities and has a large elderly population...
May 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28483485/sensory-motor-relationships-in-speech-production-in-post-lingually-deaf-cochlear-implanted-adults-and-normal-hearing-seniors-evidence-from-phonetic-convergence-and-speech-imitation
#15
Lucie Scarbel, Denis Beautemps, Jean-Luc Schwartz, Marc Sato
Speech communication can be viewed as an interactive process involving a functional coupling between sensory and motor systems. One striking example comes from phonetic convergence, when speakers automatically tend to mimic their interlocutor's speech during communicative interaction. The goal of this study was to investigate sensory-motor linkage in speech production in postlingually deaf cochlear implanted participants and normal hearing elderly adults through phonetic convergence and imitation. To this aim, two vowel production tasks, with or without instruction to imitate an acoustic vowel, were proposed to three groups of young adults with normal hearing, elderly adults with normal hearing and post-lingually deaf cochlear-implanted patients...
May 5, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28479899/effects-of-vasodilator-and-esmolol-induced-hemodynamic-stability-on-early-post-operative-cognitive-dysfunction-in-elderly-patients-a-randomized-trial
#16
Sheng-Hui Sun, Lin Yang, De-Feng Sun, Yue Wu, Jun Han, Ruo-Chuan Liu, Li-Jie Wang
OBJECTIVE: To investigate the effect of continuous intravenous injection of nicardipine and/or nitroglycerin with or without esmolol on the occurrence of early post-operative cognitive dysfunction (POCD) in elderly patients. METHODS: Elderly patients (n=340) who underwent radiofrequency ablation for atrial fibrillation were randomized into five groups: A, nicardipine; B nicardipine+esmolol; C, (nitroglycerin) group; D nitroglycerin+esmolol; E (control) groups. The hemodynamic parameters were recorded, and Mini Mental State Examination was used to assess cognitive function...
December 2016: African Health Sciences
https://www.readbyqxmd.com/read/28472843/targeting-multiple-myeloma-cancer-stem-cells-with-natural-products-lessons-from-other-hematological-malignancies
#17
Mark E Issa, Sylvian Cretton, Muriel Cuendet
Multiple myeloma is characterized by the accumulation of malignant plasma cells in the bone marrow. Multiple myeloma is the second most frequently diagnosed hematological malignancy, predominantly affecting the elderly. Despite recent advances in the development of novel therapies, multiple myeloma remains an incurable malignancy where the majority of patients relapse, develop resistance, and eventually die from the disease. This has been attributed to the fact that conventional therapy currently in use targets mainly the bulk of tumor cells, but not the tumor-initiating cancer stem cells...
May 4, 2017: Planta Medica
https://www.readbyqxmd.com/read/28469547/factors-predicting-meat-and-meat-products-consumption-among-middle-aged-and-elderly-people-evidence-from-a-consumer-survey-in-switzerland
#18
Alexandra Schmid, Doreen Gille, Patrizia Piccinali, Ueli Bütikofer, Magali Chollet, Themistoklis Altintzoglou, Pirjo Honkanen, Barbara Walther, Helena Stoffers
Background: An adequate diet contributes to health and wellbeing in older age. This is nowadays more important than ever since in industrialised countries the elderly population is growing continually. However, information regarding the consumption behaviour of older persons in Switzerland is limited. Objective: The objective of this investigation was to explore how middle-aged and elderly Swiss view animal products in relation to diet and health, and what factors predict consumption frequency. Design: A representative consumer survey among 632 people over the age of 50 years, living in the German-, French- and Italian-speaking regions of Switzerland was conducted...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28461251/mitophagy-and-age-related-pathologies-development-of-new-therapeutics-by-targeting-mitochondrial-turnover
#19
REVIEW
Konstantinos Palikaras, Ioanna Daskalaki, Maria Markaki, Nektarios Tavernarakis
Mitochondria are highly dynamic and semi-autonomous organelles, essential for many fundamental cellular processes, including energy production, metabolite synthesis, ion homeostasis, lipid metabolism and initiation of apoptotic cell death. Proper mitochondrial physiology is a prerequisite for health and survival. Generation of new and removal of damaged or unwanted mitochondria are tightly controlled processes that need to be accurately coordinated for the maintenance of mitochondrial and cellular homeostasis...
April 28, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28459143/testosterone-deficiency-and-nocturia-a-review
#20
REVIEW
Kazuyoshi Shigehara, Koji Izumi, Atsushi Mizokami, Mikio Namiki
Nocturia causes lack of sleep and excessive daytime somnolence, reducing overall well-being, vitality, productivity, and mental health. Nocturia is significantly associated with testosterone deficiency, lower urinary tract symptoms (LUTS), and sleep disorders. The development of LUTS is commonly associated with testosterone deficiency in elderly men, and recent studies have suggested that testosterone has an ameliorative effect on nocturia. In hypogonadal men with nocturia, a negative feedback cycle can arise, in which testosterone deficiency leads to the development of nocturia, and nocturia contributes to the decline in testosterone levels...
April 2017: World Journal of Men's Health
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