keyword
MENU ▼
Read by QxMD icon Read
search

Normal lung physiology

keyword
https://www.readbyqxmd.com/read/28631513/the-effect-of-labour-pain-in-caesarean-delivery-on-neonatal-and-maternal-outcomes-in-a-term-low-risk-obstetric-population
#1
Meryem Kurek Eken, Gülçin Şahin Ersoy, Sinem Çetinkaya, Çetin Çam, Ateş Karateke
Planned caesarean delivery (CD) frequency is increasing in many countries, and elective CD accounts for 50% of preventable causes of neonatal respiratory morbidity. The clearing of fluid in the lungs is important for the establishment of normal gas exchange with inspired air. A defect in this clearance can result in respiratory problems in neonate, but on the other hand patients waiting for the onset of spontaneous labour pain, the increase in emergency CD, together with severe mortality and morbidity are causes of concern and cause anxiety and distrust of obstetricians...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28624991/a-new-global-and-comprehensive-model-for-icu-ventilator-performances-evaluation
#2
Nicolas S Marjanovic, Agathe De Simone, Guillaume Jegou, Erwan L'Her
BACKGROUND: This study aimed to provide a new global and comprehensive evaluation of recent ICU ventilators taking into account both technical performances and ergonomics. METHODS: Six recent ICU ventilators were evaluated. Technical performances were assessed under two FIO2 levels (100%, 50%), three respiratory mechanics combinations (Normal: compliance [C] = 70 mL cmH2O(-1)/resistance [R] = 5 cmH2O L(-1) s(-1); Restrictive: C = 30/R = 10; Obstructive: C = 120/R = 20), four exponential levels of leaks (from 0 to 12...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28620643/activin-biology-after-lung-transplantation
#3
Glen P Westall, Gregory I Snell, Monika Loskot, Bronwyn Levvey, Robyn O'Hehir, Mark P Hedger, David M de Kretser
BACKGROUND: Activins A and B, members of the TGF-β superfamily, are produced as part of the physiological response to tissue damage and the resulting proinflammatory response. Given that lung allograft reperfusion results in an inflammatory response, it is likely that the activins and their binding protein follistatin will form part of the regulatory response. There is a need to document the response of these proteins to allograft reperfusion to determine if there is a role for the use of follistatin to control the biological actions of the activins because some of these are potentially damaging...
June 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28617947/poly-r-c-binding-protein-1-mediated-regulation-of-microrna-expression-underlies-post-sevoflurane-amelioration-of-acute-lung-injury-in-rats
#4
Xiaohong Zhao, Xiaoxia Wang, Fei Wang, Changjie Gao, Jian Wang
BACKGROUND: Acute lung injury (ALI) presents a pervasive health burden due to the high morbidity and mortality associated with it. Volatile anesthetics like sevoflurane has been previously shown to have organ-protective effect, both in the context of normal physiological function in liver, and during LPS-induced ALI. Sevoflurane was shown to exert lung protective effect during LPS-induced ALI by modulating expression level of microRNAs (miRNAs), specifically miR-155. The objective of the current study was to define the underlying mechanism by which sevoflurane alters miRNA expression levels...
June 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28613924/spirometry-reference-equations-from-the-hispanic-community-health-study-study-of-latinos-hchs-sol
#5
Lisa LaVange, Sonia M Davis, John Hankinson, Paul Enright, Rebbecca Wilson, R Graham Barr, Thomas K Aldrich, Ravi Kalhan, Hector Lemus, Ai Ni, Lewis J Smith, Gregory A Talavera
RATIONALE: Accurate reference values for spirometry are important, as the results are used for diagnosing common chronic lung diseases such as asthma and chronic obstructive pulmonary disease, estimating physiological impairment, and predicting all-cause mortality. Reference equations have been established for Mexican Americans but not for other Hispanic/Latino backgrounds. OBJECTIVES: To develop spirometry reference equations for adult Hispanic/Latino background groups in the United States...
June 14, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28587258/combination-of-near-infrared-light-activated-photodynamic-therapy-mediated-by-indocyanine-green-with-etoposide-to-treat-non-small-cell-lung-cancer
#6
Ting Luo, Qinrong Zhang, Qing-Bin Lu
Indocyanine green (ICG) has been reported as a potential near-infrared (NIR) photosensitizer for photodynamic therapy (PDT) of cancer. However the application of ICG-mediated PDT is both intrinsically and physiologically limited. Here we report a combination of ICG-PDT with a chemotherapy drug etoposide (VP-16), aiming to enhance the anticancer efficacy, to circumvent limitations of PDT using ICG, and to reduce side effects of VP-16. We found in controlled in vitro cell-based assays that this combination is effective in killing non-small-cell lung cancer cells (NSCLC, A549 cell line)...
June 5, 2017: Cancers
https://www.readbyqxmd.com/read/28583088/uncovering-the-transcriptomic-and-epigenomic-landscape-of-nicotinic-receptor-genes-in-non-neuronal-tissues
#7
Bo Zhang, Pamela Madden, Junchen Gu, Xiaoyun Xing, Savita Sankar, Jennifer Flynn, Kristen Kroll, Ting Wang
BACKGROUND: Nicotinic acetylcholine receptors (nAChRs) play an important role in cellular physiology and human nicotine dependence, and are closely associated with many human diseases including cancer. For example, previous studies suggest that nAChRs can re-wire gene regulatory networks in lung cancer cell lines. However, the tissue specificity of nAChRs genes and their regulation remain unexplored. RESULT: In this study, we integrated data from multiple large genomic consortiums, including ENCODE, Roadmap Epigenomics, GTEx, and FANTOM, to define the transcriptomic and epigenomic landscape of all nicotinic receptor genes across many different human tissues and cell types...
June 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28580303/the-role-of-bromodomain-testis-specific-factor-brdt-in-cancer-a-biomarker-and-a-possible-therapeutic-target
#8
REVIEW
Ekaterina Bourova-Flin, Florent Chuffart, Sophie Rousseaux, Saadi Khochbin
Cancer cells have recently been shown to activate hundreds of normally silent tissue-restricted genes, including a specific subset associated with cancer progression and poor prognosis. Within these genes, a class of testis-specific genes designed as cancer/testis, attracted special attention because of their oncogenic roles as well as their potential use in immunotherapy. Here we focus on one of these genes encoding the testis-specific member of the bromodomain and extra-terminal (BET) family, known as BRDT...
2017: Cell Journal
https://www.readbyqxmd.com/read/28570536/isolation-of-intermediate-filament-proteins-from-multiple-mouse-tissues-to-study-aging-associated-post-translational-modifications
#9
Rachel A Battaglia, Parijat Kabiraj, Helen H Willcockson, Melinda Lian, Natasha T Snider
Intermediate filaments (IFs), together with actin filaments and microtubules, form the cytoskeleton - a critical structural element of every cell. Normal functioning IFs provide cells with mechanical and stress resilience, while a dysfunctional IF cytoskeleton compromises cellular health and has been associated with many human diseases. Post-translational modifications (PTMs) critically regulate IF dynamics in response to physiological changes and under stress conditions. Therefore, the ability to monitor changes in the PTM signature of IFs can contribute to a better functional understanding, and ultimately conditioning, of the IF system as a stress responder during cellular injury...
May 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28544158/molecular-and-physiological-manifestations-and-measurement-of-aging-in-humans
#10
REVIEW
Sadiya S Khan, Benjamin D Singer, Douglas E Vaughan
Biological aging is associated with a reduction in the reparative and regenerative potential in tissues and organs. This reduction manifests as a decreased physiological reserve in response to stress (termed homeostenosis) and a time-dependent failure of complex molecular mechanisms that cumulatively create disorder. Aging inevitably occurs with time in all organisms and emerges on a molecular, cellular, organ, and organismal level with genetic, epigenetic, and environmental modulators. Individuals with the same chronological age exhibit differential trajectories of age-related decline, and it follows that we should assess biological age distinctly from chronological age...
May 23, 2017: Aging Cell
https://www.readbyqxmd.com/read/28532223/preliminary-study-on-fabrication-characterization-and-synergistic-anti-lung-cancer-effects-of-self-assembled-micelles-of-covalently-conjugated-celastrol-polyethylene-glycol-ginsenoside-rh2
#11
Peng Li, XiaoYue Zhou, Ding Qu, Mengfei Guo, Chenyi Fan, Tong Zhou, Yang Ling
The aim of this study was to develop an amphipathic polyethylene glycol (PEG) derivative that was bi-terminally modified with celastrol and ginsenoside Rh2 (Celastrol-PEG-G Rh2). Such derivative was capable of forming novel, celastrol-loaded polymeric micelles (CG-M) for endo/lysosomal delivery and thereby synergistic treatment of lung cancer. Celastrol-PEG-G Rh2 with a yield of 55.6% was first synthesized and characterized. Its critical micellar concentration was 1 × 10(-5 )M, determined by pyrene entrapment method...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28526615/lung-inflammation-after-bleomycin-treatment-in-mice-selection-of-an-accurate-normalization-strategy-for-gene-expression-analysis-in-an-ex-vivo-and-in-vitro-model
#12
Veronica Della Latta, Manuela Cabiati, Silvia Burchielli, Giada Frenzilli, Margherita Bernardeschi, Antonella Cecchettini, Federica Viglione, Maria-Aurora Morales, Silvia Del Ry
Pulmonary fibrosis (PF) is the most common and aggressive interstitial lung disease, characterized by a patchy development of fibrosis leading to progressive destruction of the normal lung architecture which is preceded by an inflammatory process. Gene expression studies are important to understand the development of PF but the accuracy and reproducibility of Real-Time PCR depend on appropriate normalization strategies. This study aimed to analyze the expression variability of eight commonly used reference genes during the initial inflammatory phase of bleomycin-induced PF in a mouse model and to verify whether the selected reference genes could be applied to an in-vitro model of BLM-treated primary murine lung fibroblasts...
May 16, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28525342/effects-of-long-term-construction-noise-on-health-of-adult-female-wistar-rats
#13
J Zymantiene, R Zelvyte, I Pampariene, A Aniuliene, N Juodziukyniene, J Kantautaite, V Oberauskas
The aim of this study was to investigate the influence of long-term building construction noise from refurbishment, which including vibration, on some physiological parameters and histopathological changes of organs of Wistar rats. Twenty 12 month old female rats were divided into two groups: rats group I (n = 10) were exposed to long-term construction noise and rats group II (n = 10) were kept under normal noise level. Study results revealed that long-term construction noise from building refurbishment has an influence on body weight, haematological and some serum biochemical parameters affects caecal microbiota, and causes histopathological changes in the organs of adult female Wistar rats...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28522333/development-of-qsars-for-parameterizing-physiology-based-toxicokinetic-models
#14
Dimosthenis Α Sarigiannis, Krystalia Papadaki, Periklis Kontoroupis, Spyros P Karakitsios
A Quantitative Structure Activity Relationship (QSAR) model was developed in order to predict physicochemical and biochemical properties of industrial chemicals of various groups. This model was based on the solvation equation, originally proposed by Abraham. In this work Abraham's solvation model got parameterized using artificial intelligence techniques such as artificial neural networks (ANNs) for the prediction of partitioning into kidney, heart, adipose, liver, muscle, brain and lung for the estimation of the bodyweight-normalized maximal metabolic velocity (Vmax) and the Michaelis - Menten constant (Km)...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28507099/carbon-dioxide-dependent-regulation-of-nf-%C3%AE%C2%BAb-family-members-relb-and-p100-gives-molecular-insight-into-co2-dependent-immune-regulation
#15
Ciara E Keogh, Carsten C Scholz, Javier Rodriguez, Andrew C Selfridge, Alexander von Kriegshiem, Eoin P Cummins
CO2 is a physiological gas normally produced in the body during aerobic respiration. Hypercapnia (elevated blood pCO2 > ≈ 50mmHg) is a feature of several lung pathologies e.g. chronic obstructive pulmonary disease (COPD). Hypercapnia is associated with increased susceptibility to bacterial infections and suppression of inflammatory signaling. The NF-κB pathway has been implicated in these effects, however, the molecular mechanisms underpinning cellular sensitivity of the NF-κB pathway to CO2 is not fully elucidated...
May 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28492512/aldosterone-and-mineralocorticoid-receptors-physiology-and-pathophysiology
#16
John W Funder
Aldosterone is a uniquely terrestrial hormone, first appearing in lungfish, which have both gills and lungs. Mineralocorticoid receptors (MRs), on the other hand, evolved much earlier, and are found in cartilaginous and bony fish, presumptive ligand cortisol. MRs have equivalent high affinity for aldosterone, progesterone, and cortisol; in epithelia, despite much higher cortisol circulating levels, aldosterone selectively activates MRs by co-expression of the enzyme 11β-hydroxysteroid dehydrogenase, Type 11...
May 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28471738/regional-ventilation-changes-in-the-lung-treatment-response-mapping-by-using-hyperpolarized-gas-mr-imaging-as-a-quantitative-biomarker
#17
Felix C Horn, Helen Marshall, Guilhem J Collier, Richard Kay, Salman Siddiqui, Christopher E Brightling, Juan Parra-Robles, Jim M Wild
Purpose To assess the magnitude of regional response to respiratory therapeutic agents in the lungs by using treatment response mapping (TRM) with hyperpolarized gas magnetic resonance (MR) imaging. TRM was used to quantify regional physiologic response in adults with asthma who underwent a bronchodilator challenge. Materials and Methods This study was approved by the national research ethics committee and was performed with informed consent. Imaging was performed in 20 adult patients with asthma by using hyperpolarized helium 3 ((3)He) ventilation MR imaging...
May 4, 2017: Radiology
https://www.readbyqxmd.com/read/28467681/luminescent-strategies-for-label-free-g-quadruplex-based-enzyme-activity-sensing
#18
REVIEW
Dik-Lung Ma, Zhen-Zhen Dong, Kasipandi Vellaisamy, Ka-Man Cheung, Guanjun Yang, Chung-Hang Leung
By catalyzing highly specific and tightly controlled chemical reactions, enzymes are essential to maintaining normal cellular physiology. However, aberrant enzymatic activity can be linked to the pathogenesis of various diseases. Therefore, the unusual activity of particular enzymes can represent testable biomarkers for the diagnosis or screening of certain diseases. In recent years, G-quadruplex-based platforms have attracted wide attention for the monitoring of enzymatic activities. In this Personal Account, we discuss our group's works on the development of G-quadruplex-based sensing system for enzyme activities by using mainly iridium(III) complexes as luminescent label-free probes...
May 3, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28444932/the-association-of-lamb1-polymorphism-and-expression-changes-with-the-risk-of-coal-workers-pneumoconiosis
#19
Xiaoming Ji, Baiqun Wu, Ruhui Han, Jingjin Yang, Esther Ayaaba, Ting Wang, Lei Han, Chunhui Ni
BACKGROUND: Pneumoconiosis is a serious occupational disease worldwide, which is characterized by irreversible and diffuse lung fibrotic lesions. Laminin beta 1(LAMB1) is widely expressed in tissues and it is crucial for both lung morphogenesis and physiological function. In this study, we explored the association between LAMB1 rs4320486 and risk of pneumoconiosis in a Chinese population, as well as its mechanisms. METHODS: In this case-control study, 600 CWP patients and 605 controls were genotyped for the LAMB1 rs4320486 polymorphism using TaqMan methods...
April 26, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28440792/an-extra-uterine-system-to-physiologically-support-the-extreme-premature-lamb
#20
Emily A Partridge, Marcus G Davey, Matthew A Hornick, Patrick E McGovern, Ali Y Mejaddam, Jesse D Vrecenak, Carmen Mesas-Burgos, Aliza Olive, Robert C Caskey, Theodore R Weiland, Jiancheng Han, Alexander J Schupper, James T Connelly, Kevin C Dysart, Jack Rychik, Holly L Hedrick, William H Peranteau, Alan W Flake
In the developed world, extreme prematurity is the leading cause of neonatal mortality and morbidity due to a combination of organ immaturity and iatrogenic injury. Until now, efforts to extend gestation using extracorporeal systems have achieved limited success. Here we report the development of a system that incorporates a pumpless oxygenator circuit connected to the fetus of a lamb via an umbilical cord interface that is maintained within a closed 'amniotic fluid' circuit that closely reproduces the environment of the womb...
April 25, 2017: Nature Communications
keyword
keyword
80847
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"