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https://www.readbyqxmd.com/read/27905694/high-flow-oxygen-therapy-in-adult-critically-ill-patients
#1
Lorenzo Del Sorbo, Alice Vendramin, Sangeeta Mehta
High flow oxygen therapy is characterized for its ability to meet or exceed the high peak inspiratory flow of the patients with acute respiratory failure. Despite the lack of definitive evidence regarding its efficacy in improving clinically significant outcomes, its application has been rapidly spreading over the last decade. In this review we discuss the potential physiologic mechanisms of benefit as well as the most recent clinical trials investigating its role in adult critically ill patient.
December 1, 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27904993/molecular-mechanisms-of-heart-failure-insights-from-drosophila
#2
Shasha Zhu, Zhe Han, Yan Luo, Yulin Chen, Qun Zeng, Xiushan Wu, Wuzhou Yuan
Heart failure places an enormous burden on health and economic systems worldwide. It is a complex disease that is profoundly influenced by both genetic and environmental factors. Neither the molecular mechanisms underlying heart failure nor effective prevention strategies are fully understood. Fortunately, relevant aspects of human heart failure can be experimentally studied in tractable model animals, including the fruit fly, Drosophila, allowing the in vivo application of powerful and sophisticated molecular genetic and physiological approaches...
December 1, 2016: Heart Failure Reviews
https://www.readbyqxmd.com/read/27904969/metabolic-responses-and-omics-technologies-for-elucidating-the-effects-of-heat-stress-in-dairy-cows
#3
REVIEW
Li Min, Shengguo Zhao, He Tian, Xu Zhou, Yangdong Zhang, Songli Li, Hongjian Yang, Nan Zheng, Jiaqi Wang
Heat stress (HS) negatively affects various industries that rely on animal husbandry, particularly the dairy industry. A better understanding of metabolic responses in HS dairy cows is necessary to elucidate the physiological mechanisms of HS and offer a new perspective for future research. In this paper, we review the current knowledge of responses of body metabolism (lipid, carbohydrate, and protein), endocrine profiles, and bovine mammary epithelial cells during HS. Furthermore, we summarize the metabolomics and proteomics data that have revealed the metabolite profiles and differentially expressed proteins that are a feature of HS in dairy cows...
November 30, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27904915/studies-using-a-porcine-model-what-insights-into-human-calcium-oxalate-stone-formation-mechanisms-has-this-model-facilitated
#4
REVIEW
Kristina L Penniston, Sutchin R Patel, Denise J Schwahn, Stephen Y Nakada
Animal models are useful in the study of many human diseases. Our current understanding of the biological, physiological, and biochemical aspects of hyperoxaluria and calcium oxalate urolithiasis has been greatly informed by studies using animals. Recently, limitations in the extrapolation to humans of research results derived from laboratory rodents have been identified. The use in biomedical research of a variety of organisms, including large animals, is increasingly encouraged. The purpose of this article is to review the use of pigs in biomedical and stone research, to provide a rationale for using pigs in metabolic stone research, and to describe our 8-year experience in developing a porcine platform for studying hyperoxaluria and calcium oxalate urolithiasis...
November 30, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27904762/activin-receptor-like-kinases-a-diverse-family-playing-an-important-role-in-cancer
#5
REVIEW
Holli A Loomans, Claudia D Andl
The role and function of the members of the TGFβ superfamily has been a substantial area of research focus for the last several decades. During that time, it has become apparent that aberrations in TGFβ family signaling, whether through the BMP, Activin, or TGFβ arms of the pathway, can result in tumorigenesis or contribute to its progression. Downstream signaling regulates cellular growth under normal physiological conditions yet induces diverse processes during carcinogenesis, ranging from epithelial- to-mesenchymal transition to cell migration and invasion to angiogenesis...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27904621/the-association-between-vitamin-d-and-health-outcomes-in-women-a-review-on-the-related-evidence
#6
REVIEW
Nahid Ramezani Jolfaie, Mohammad Hossein Rouhani, Shokouh Onvani, Leila Azadbakht
BACKGROUND: Vitamin D has a wide range of physiological functions in skeletal and nonskeletal tissues which may play a role in many diseases. The aim of this study was to evaluate the recent evidence regarding the effects of Vitamin D on several health outcomes in women including breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis. MATERIALS AND METHODS: We searched PubMed and Google Scholar databases through March 2016. We included the most current systematic reviews and meta-analyses assessing the associations of Vitamin D intake and/or serum 25-hydroxyvitamin D (25(OH)D) levels with the risk of incidence of breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904099/effects-of-reinforcement-method-of-dissection-physiology-education-on-the-achievement-in-pharmacology
#7
Tomoya Kitayama, Satomi Kagota, Noriko Yoshikawa, Nobuyuki Kawai, Kanae Nishimura, Takeshi Miura, Naomi Yasui, Kazumasa Shinozuka, Toshikatsu Nakabayashi
 The Pharmaceutical Education Support Center was established in the Department of Pharmacy at the School of Pharmacy and Pharmaceutical Science of Mukogawa Women's University in 2014. We started teaching first and second years students according to proficiency from the 2014 academic year. Students were divided into two classes: the regular class (high proficiency class) and the basic class (low proficiency class), based on achievement in several basic subjects related to the study of pharmacy. The staffs in the Pharmaceutical Education Support Center reinforce what is taught to students in the basic class...
2016: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/27903918/reactive-oxygen-species-in-hevea-brasiliensis-latex-and-relevance-to-tapping-panel-dryness
#8
REVIEW
Yi Zhang, Julie Leclercq, Pascal Montoro
Environmental stress can lead to oxidative stress resulting from an increase in reactive oxygen species (ROS) and involves redox adjustments. Natural rubber is synthesized in laticifers, which is a non-photosynthetic tissue particularly prone to oxidative stress. This paper reviews the current state of knowledge on the ROS production and ROS-scavenging systems in laticifers. These regulations have been the subject of intense research into a physiological syndrome, called Tapping Panel Dryness (TPD), affecting latex production in Hevea brasiliensis In order to prevent TPD occurrence, monitoring thiol content appeared to be a crucial factor of latex diagnosis...
November 29, 2016: Tree Physiology
https://www.readbyqxmd.com/read/27903834/saliva-diagnostics-current-views-and-directions
#9
Karolina Elżbieta Kaczor-Urbanowicz, Carmen Martin Carreras-Presas, Katri Aro, Michael Tu, Franklin Garcia-Godoy, David Tw Wong
In this review, we provide an update on the current and future applications of saliva for diagnostic purposes. There are many advantages of using saliva as a biofluid. Its collection is fast, easy, inexpensive, and non-invasive. In addition, saliva, as a "mirror of the body," can reflect the physiological and pathological state of the body. Therefore, it serves as a diagnostic and monitoring tool in many fields of science such as medicine, dentistry, and pharmacotherapy. Introduced in 2008, the term "Salivaomics" aimed to highlight the rapid development of knowledge about various "omics" constituents of saliva, including: proteome, transcriptome, micro-RNA, metabolome, and microbiome...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27903669/exertional-dyspnoea-in-obesity
#10
Vipa Bernhardt, Tony G Babb
The purpose of cardiopulmonary exercise testing (CPET) in the obese person, as in any cardiopulmonary exercise test, is to determine the patient's exercise tolerance, and to help identify and/or distinguish between the various physiological factors that could contribute to exercise intolerance. Unexplained dyspnoea on exertion is a common reason for CPET, but it is an extremely complex symptom to explain. Sometimes obesity is the simple answer by elimination of other possibilities. Thus, distinguishing among multiple clinical causes for exertional dyspnoea depends on the ability to eliminate possibilities while recognising response patterns that are unique to the obese patient...
December 2016: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/27903666/managing-adult-fontan-patients-where-do-we-stand
#11
REVIEW
Paul Clift, David Celermajer
The Fontan operation is performed as a palliative procedure to improve survival in infants born with a functionally univentricular circulation. The success of the operation is demonstrated by a growing adult Fontan population that exists with this unique physiology. Late follow-up has demonstrated expected and unexpected sequelae, and has shown multisystem effects of this circulation. This review discusses the challenges of managing the late complications in terms of understanding this unique physiology and the innovative therapeutic interventions that are being investigated...
December 2016: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/27903609/protein-sorting-at-the-er-golgi-interface
#12
REVIEW
Natalia Gomez-Navarro, Elizabeth Miller
Protein traffic is of critical importance for normal cellular physiology. In eukaryotes, spherical transport vesicles move proteins and lipids from one internal membrane-bound compartment to another within the secretory pathway. The process of directing each individual protein to a specific destination (known as protein sorting) is a crucial event that is intrinsically linked to vesicle biogenesis. In this review, we summarize the principles of cargo sorting by the vesicle traffic machinery and consider the diverse mechanisms by which cargo proteins are selected and captured into different transport vesicles...
November 30, 2016: Journal of Cell Biology
https://www.readbyqxmd.com/read/27903310/the-determinants-of-food-choice
#13
Gareth Leng, Roger A H Adan, Michele Belot, Jeffrey M Brunstrom, Kees de Graaf, Suzanne L Dickson, Todd Hare, Silvia Maier, John Menzies, Hubert Preissl, Lucia A Reisch, Peter J Rogers, Paul A M Smeets
Health nudge interventions to steer people into healthier lifestyles are increasingly applied by governments worldwide, and it is natural to look to such approaches to improve health by altering what people choose to eat. However, to produce policy recommendations that are likely to be effective, we need to be able to make valid predictions about the consequences of proposed interventions, and for this, we need a better understanding of the determinants of food choice. These determinants include dietary components (e...
December 1, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27903093/challenges-in-simulating-the-human-gut-for-understanding-the-role-of-the-microbiota-in-obesity
#14
M Aguirre, K Venema
There is an elevated incidence of cases of obesity worldwide. Therefore, the development of strategies to tackle this condition is of vital importance. This review focuses on the necessity of optimising in vitro systems to model human colonic fermentation in obese subjects. This may allow to increase the resolution and the physiological relevance of the information obtained from this type of studies when evaluating the potential role that the human gut microbiota plays in obesity. In light of the parameters that are currently used for the in vitro simulation of the human gut (which are mostly based on information derived from healthy subjects) and the possible difference with an obese condition, we propose to revise and improve specific standard operating procedures...
December 1, 2016: Beneficial Microbes
https://www.readbyqxmd.com/read/27901588/reciprocal-crosstalk-between-autophagic-and-endocrine-signaling-in-metabolic-homeostasis
#15
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/27901187/interactions-between-prolactin-and-kisspeptin-to-control-reproduction
#16
Jose Donato, Renata Frazão
Prolactin is best known for its effects of stimulating mammary gland development and lactogenesis. However, prolactin is a pleiotropic hormone that is able to affect several physiological functions, including fertility. Prolactin receptors (PRLRs) are widely expressed in several tissues, including several brain regions and reproductive tract organs. Upon activation, PRLRs may exert prolactin's functions through several signaling pathways, although the recruitment of the signal transducer and activator of transcription 5 causes most of the known effects of prolactin...
November 24, 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27900619/current-perspectives-on-antihypertensive-probiotics
#17
REVIEW
Eric Banan-Mwine Daliri, Byong H Lee, Deog H Oh
Hypertension is a major risk factor for cardiovascular diseases. Optimizing blood pressure results in an overall health outcome. Over the years, the gut microbiota has been found to play a significant role in host metabolic processes, immunity, and physiology. Dietary strategies have therefore become a target for restoring disturbed gut microbiota to treat metabolic diseases. Probiotics and their fermented products have been shown in many studies to lower blood pressure by suppressing nitrogen oxide production in microphages, reducing reactive oxygen species, and enhancing dietary calcium absorption...
November 29, 2016: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/27900610/novel-sgc-stimulators-and-sgc-activators-for-the-treatment-of-heart-failure
#18
Stefanie Breitenstein, Lothar Roessig, Peter Sandner, Kelly S Lewis
The burden of heart failure (HF) increases worldwide with an aging population, and there is a high unmet medical need in both, heart failure with reduced ejection fraction (HFrEF) and with preserved ejection fraction (HFpEF). The nitric oxide (NO) pathway is a key regulator in the cardiovascular system and modulates vascular tone and myocardial performance. Disruption of the NO-cyclic guanosine monophosphate (cGMP) signaling axis and impaired cGMP formation by endothelial dysfunction could lead to vasotone dysregulation, vascular and ventricular stiffening, fibrosis, and hypertrophy resulting in a decline of heart as well as kidney function...
November 30, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/27900551/transcriptional-regulation-of-snrnas-and-its-significance-for-plant-development
#19
Misato Ohtani
Small nuclear RNA (snRNA) represents a distinct class of non-coding RNA molecules. As these molecules have fundamental roles in RNA metabolism, including pre-mRNA splicing and ribosomal RNA processing, it is essential that their transcription be tightly regulated in eukaryotic cells. The genome of each organism contains hundreds of snRNA genes. Although the structures of these genes are highly diverse among organisms, the trans-acting factors that regulate snRNA transcription are evolutionarily conserved. Recent studies of the Arabidopsis thaliana srd2-1 mutant, which is defective in the snRNA transcription factor, provide insight into the physiological significance of snRNA regulation in plant development...
November 29, 2016: Journal of Plant Research
https://www.readbyqxmd.com/read/27900193/exertional-rhabdomyolysis-physiological-response-or-manifestation-of-an-underlying-myopathy
#20
Renata S Scalco, Marc Snoeck, Ros Quinlivan, Susan Treves, Pascal Laforét, Heinz Jungbluth, Nicol C Voermans
Exertional rhabdomyolysis is characterised by muscle breakdown associated with strenuous exercise or normal exercise under extreme circumstances. Key features are severe muscle pain and sudden transient elevation of serum creatine kinase (CK) levels with or without associated myoglobinuria. Mild cases may remain unnoticed or undiagnosed. Exertional rhabdomyolysis is well described among athletes and military personnel, but may occur in anybody exposed to unaccustomed exercise. In contrast, exertional rhabdomyolysis may be the first manifestation of a genetic muscle disease that lowers the exercise threshold for developing muscle breakdown...
2016: BMJ Open Sport & Exercise Medicine
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