scholarly journals Glucagon-Like Peptide-1 (GLP-1) Reduces Mortality and Improves Lung Function in a Model of Experimental Obstructive Lung Disease in Female Mice

Endocrinology ◽  
2013 ◽  
Vol 154 (12) ◽  
pp. 4503-4511 ◽  
Author(s):  
Niels-Erik Viby ◽  
Marie S. Isidor ◽  
Katrine B. Buggeskov ◽  
Steen S. Poulsen ◽  
Jacob B. Hansen ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Whole Body ◽  
Control Group ◽  
Chronic Obstructive ◽  
Mrna Levels ◽  
Female Mice ◽  
Glucagon Like Peptide ◽  
Glucagon Like Peptide 1

The incretin hormone glucagon-like peptide-1 (GLP-1) is an important insulin secretagogue and GLP-1 analogs are used for the treatment of type 2 diabetes. GLP-1 displays antiinflammatory and surfactant-releasing effects. Thus, we hypothesize that treatment with GLP-1 analogs will improve pulmonary function in a mouse model of obstructive lung disease. Female mice were sensitized with injected ovalbumin and treated with GLP-1 receptor (GLP-1R) agonists. Exacerbation was induced with inhalations of ovalbumin and lipopolysaccharide. Lung function was evaluated with a measurement of enhanced pause in a whole-body plethysmograph. mRNA levels of GLP-1R, surfactants (SFTPs), and a number of inflammatory markers were measured. GLP-1R was highly expressed in lung tissue. Mice treated with GLP-1R agonists had a noticeably better clinical appearance than the control group. Enhanced pause increased dramatically at day 17 in all control mice, but the increase was significantly less in the groups of GLP-1R agonist-treated mice (P < .001). Survival proportions were significantly increased in GLP-1R agonist-treated mice (P < .01). SFTPB and SFTPA were down-regulated and the expression of inflammatory cytokines were increased in mice with obstructive lung disease, but levels were largely unaffected by GLP-1R agonist treatment. These results show that GLP-1R agonists have potential therapeutic potential in the treatment of obstructive pulmonary diseases, such as chronic obstructive pulmonary disease, by decreasing the severity of acute exacerbations. The mechanism of action does not seem to be the modulation of inflammation and SFTP expression.

Sex differences in the lung function in chronic obstructive lung disease

2020 ◽  
Vol 0 (3) ◽  
pp. 57-61
Author(s):  
A.M. Popa ◽  
A.N. Capros ◽  
M.S. Savca
Keyword(s):  
Sex Differences ◽  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Chronic Obstructive

Carnitine deficiency in chronic obstructive lung disease: A study in a tertiary care centre

2021 ◽  
Vol 6 (3) ◽  
pp. 183-187
Author(s):  
M Ravindranath ◽  
C H Raju
Keyword(s):  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Tertiary Care ◽  
Chronic Obstructive Lung Disease ◽  
Carnitine Deficiency ◽  
Control Group ◽  
Chronic Obstructive ◽  
X Rays ◽  
Tertiary Care Centre ◽  
Regular Diet

Chronic Obstructive Lung Disease (COPD) is a condition where there is poor airflow to the lungs and over a period of time this condition worsen, resulting in severe morbidity. L-carnitine (LC) is a soluble qaurtenary amine and is essential for the tissues and lung tone to function normally. This study was therefore find out the association of L-carnitine in patients with chronic Obstructive Pulmonary Disease. 75 patients who came to the Department of Pulmonology of either sex between 40 to 75 years with confirmed COPD were included into patients group and 75 healthy patients were included into the control group. Blood was collected for Fasting blood sugar, AST, ALP, ALT, Urea, Creatinine, Albumin, pre-albumin, iron , magnesium, sodium, phosphorous, calcium, Acylcarnitines, total and free carnitine levels. X-rays were taken and pulmonary function test was done for all the patients. The mean age of the patients in our study was 62.53 and 61.86 years among the patients and controls respectively. Among the controls the Ph and Fe levels were 3.1 ± 0.9mmol/L and 21.69 ± 3.19 mcg/dL respectively and among the patients the same levels were 2.6 ± 1.9mmol/L and 43.82 ± 8.22mcg/dL respectively. The albumin and the prealbumin in the patients were significantly lower in the patients with 21.81 ± 2.88 and 23.53 ±2.58 mg/dL and in controls they were 32.61 ±3.87 and 26.87 ± 1.93 mg/dL respectively. There was a considerable carnitine deficiencies in COPD patients when compared to the controls and since carnitine can be found in regular diet, people can be educated to have a proper intake of foods containing carnitine in their regular diet.

Association of testosterone with lung function in patients with chronic obstructive lung disease

2021 ◽  
Author(s):  
A Hedhli ◽  
A Slim ◽  
M Mjid ◽  
S Hadj Taieb ◽  
Y Ouahchi ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Chronic Obstructive

scholarly journals Relationship of CT densitometry to lung physiological parameters and health status in alpha-1 antitrypsin deficiency: initial report of a centralised database of the NIHR rare diseases translational research collaborative

BMJ Open ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. e036045
Author(s):  
Diana Crossley ◽  
James Stockley ◽  
Charlotte E Bolton ◽  
Nicholas S Hopkinson ◽  
Ravi Mahadeva ◽  
...  
Keyword(s):  
Health Status ◽  
Lung Function ◽  
Lung Disease ◽  
Clinical Features ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Chronic Obstructive ◽  
Antitrypsin Deficiency ◽  
Alpha 1 Antitrypsin Deficiency ◽  
Alpha 1 Antitrypsin

ObjectivesTo establish a database network for the study of alpha-1 antitrypsin deficiency (AATD) and compare the results to CT lung density as the most direct measure of emphysema.DesignA central electronic database was established to permit the upload of anonymised patient data from remote sites. Prospectively collected CT data were recorded onto disc, anonymised, analysed at the coordinating centre and compared with the clinical features of the disease.SettingTertiary referral centres with expertise in the management of AATD focused on academic Biomedical Research Units and Wellcome Clinical Research Facilities.ParticipantsData were collected from 187 patients over 1 year from eight UK academic sites. This included patient demographics, postbronchodilator physiology, health status and CT. Analysis was undertaken at the coordinating centre in Birmingham.ResultsPatient recruitment in the 12 months reached 94% of target (set at 200) covering the whole spectrum of the disease from those with normal lung function to very severe chronic obstructive lung disease. CT scan suitable for analysis was available from 147 (79%) of the patients. CT density, analysed as the threshold for the lowest 15% of lung voxels, showed statistically significant relationships with the objective physiological parameters of lung function as determined by spirometric Global Initiative for Chronic Obstructive Lung Disease (GOLD) severity staging (p<0.001) and carbon monoxide gas transfer (p<0.01). Density also correlated with subjective measures of quality of life (p=0.02).ConclusionsEstablishment of the network for data collection and its transfer was highly successful facilitating future collaboration for the study of this rare disease and its management. CT densitometry correlated well with the objective clinical features of the disease supporting its role as the specific marker of the associated emphysema and its severity. Correlations with subjective measures of health, however, were generally weak indicating other factors play a role.

scholarly journals Correlates of resting and exertional dyspnea among older adults with obstructive lung disease: a cross-sectional analysis of the Canadian Longitudinal Study on Aging

2019 ◽  
Author(s):  
Joshua Good ◽  
Michael K Stickland ◽  
Shilpa Dogra
Keyword(s):  
Longitudinal Study ◽  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Flat Surface ◽  
Chronic Obstructive ◽  
Fat Percentage ◽  
Timed Up And Go ◽  
Exertional Dyspnea ◽  
Climbing Stairs

IntroductionIn patients with chronic obstructive pulmonary disease (COPD), the perception of dyspnea is related to quality of life, and is a better predictor of mortality than the severity of airway obstruction. The purpose of the current study was to use population-level data from the Canadian Longitudinal Study on Aging (CLSA) to identify potential correlates of dyspnea in adults with obstructive lung disease.MethodsData from participants with a self-reported obstructive lung disease (asthma or COPD) were used for analysis (n=2,854). Four outcome variables were assessed: self-reported dyspnea at 1) rest, 2) walking on a flat surface, 3) walking uphill/climbing stairs, 4) following strenuous activity. Potential sociodemographic, health, and health behaviour correlates were entered in to logistic regression models.ResultsHigher body fat percentage, and worse forced expiratory volume in one second were associated with higher odds of reporting dyspnea. Females with an anxiety disorder (OR=1.91, CI: 1.29, 2.83) and males with a mood disorder (OR=2.67, CI: 1.53, 4.68) reported higher odds of experiencing dyspnea walking on a flat surface, independent of lung function and other correlates. Dyspnea while walking uphill/climbing stairs was associated with a slower timed up and go time in females (e.g. OR=1.18, CI: 1.10) and males (OR=1.19, CI: 1.09, 1.30).ConclusionsIn addition to traditional predictors such as lung function and body composition, we found that anxiety and mood disorders, as well as functional fitness were correlates of dyspnea. Further research is needed to understand whether targeting these correlates leads to improvements in perceptions of dyspnea.

scholarly journals Inhibitory Effects of GGX on Lung Injury of Chronic Obstructive Lung Disease (COPD) Mice Model

2021 ◽  
Vol 42 (3) ◽  
pp. 56-71
Author(s):  
Tae Hyeon Kim ◽  
Won Kyung Yang ◽  
Su Won Lee ◽  
Seung Hyung Kim ◽  
Yee Ran Lyu ◽  
...  
Keyword(s):  
Lung Injury ◽  
Lung Disease ◽  
Lung Tissue ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Chronic Obstructive ◽  
Mice Model ◽  
Tnf Α

Objectives: This study is aimed to evaluate the protective effects of GGX on lung injury of Chronic Obstructive Lung Disease (COPD) mice model. Materials and Methods: C57BL/6 mice were challenged with lipopolysaccharide (LPS) and cigarette smoke extract (CSE) and then treated with vehicle only (Control group), dexamethasone 3 ㎎/㎏ (Dexa group), gam-gil-tang 200 ㎎/㎏ (GGT group), GGX 100, 200, and 400 ㎎/㎏ (GGX group). After sacrifice, its bronchoalveolar lavage fluid (BALF) or lung tissue was analyzed with cytospin, Enzyme-Linked Immunosorbent Assay (ELISA), real-time polymerase chain reaction (PCR) and hematoxylin & eosin (H&E), and Masson’s trichrome staining. Results: In the COPD model, GGX significantly inhibited the increase of neutrophils, TNF-α, IL-17A, CXCL-1, MIP2 in BALF and TNF-α, IL-1β, IL-10 mRNA expression in lung tissue. It also decreased the severity of histological lung injury. Conclusion: This study suggests the usability of GGX for COPD patients by controlling lung tissue injury.

Comparison of the Effects of Nitroglycerin and Aminophylline on Hemodynamics and Lung Function in Patients with Chronic Obstructive Lung Disease

Nitrates III ◽  
1981 ◽  
pp. 293-298
Author(s):  
B. Niehues ◽  
W. Jansen ◽  
H. Oberhoffer ◽  
R. Thoma ◽  
H. J. Küpper ◽  
...  
Keyword(s):  
Lung Function ◽  
Lung Disease ◽  
Obstructive Lung Disease ◽  
Chronic Obstructive Lung Disease ◽  
Chronic Obstructive
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