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Pediatric Flexible Bronchoscopy in Singapore: A 10-year Experience

Woodhull S, Goh Eng Neo A, Tang Poh Lin J, Chay OM

J Bronchology Interv Pulmonol, 2010 Apr;17(2):136-41.
PMID: 23168729 DOI: 10.1097/LBR.0b013e3181dc993a

To determine the results of children who underwent flexible bronchoscopy and bronchoalveolar lavage (BAL) in the Respiratory Medicine Service of Kandang Kerbau Women's and Children's Hospital from 1996 to 2005.

Matched MeSH terms: Bronchoalveolar Lavage Fluid; Bronchoalveolar Lavage
Development and validation of a bronchoscopically defined bronchitis scoring tool in children

Eg KP, Thomas RJ, Masters IB, McElrea MS, Marchant JM, Chang AB

Pediatr Pulmonol, 2020 09;55(9):2444-2451.
PMID: 32584469 DOI: 10.1002/ppul.24924

INTRODUCTION/AIM: A validated tool for scoring bronchitis during flexible bronchoscopy (FB) is potentially useful for clinical practice and research. We aimed to develop a bronchoscopically defined bronchitis scoring system in children (BScore) based on our pilot study.
METHODS: Children undergoing FB were prospectively enrolled. Their FB was digitally recorded and assessed (two clinicians blinded to each other and clinical history) for six features: secretion amount (six-point scale), secretion color (BronkoTest, 0-8), mucosal oedema (0-3), ridging (0-3), erythema (0-3), and pallor (0-3) based on pre-determined criteria. We correlated (Spearman's rho) each feature with bronchoalveolar lavage (BAL) neutrophil percentage (neutrophil%). BScore was then derived using models with combinations of the six features that best related to airway BAL neutrophil%. The various models of BScore were plotted against BAL neutrophil% using receiver operating characteristic (ROC) curves.
RESULTS: We analyzed 142 out of 150 children enrolled. Eight children were excluded for unavailability of BAL cytology or FB recordings. Chronic/recurrent cough was the commonest indication for FB (75%). The median age was 3 years (IQR, 1.5-5.3 years). Secretion amount (r = 0.42) and color (r = 0.46), mucosal oedema (r = 0.42), and erythema (r = 0.30) significantly correlated with BAL neutrophil%, P 10%).
CONCLUSION: This prospective study has developed the first validated bronchitis scoring tool in children based on bronchoscopic visual inspection of airways. Further validation in other cohorts is however required.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/cytology; Bronchoalveolar Lavage Fluid/immunology
Fulltext Inhalation of honey reduces airway inflammation and histopathological changes in a rabbit model of ovalbumin-induced chronic asthma

Kamaruzaman NA, Sulaiman SA, Kaur G, Yahaya B

BMC Complement Altern Med, 2014;14:176.
PMID: 24886260 DOI: 10.1186/1472-6882-14-176

Honey is widely used in folk medicine to treat cough, fever, and inflammation. In this study, the effect of aerosolised honey on airway tissues in a rabbit model of ovalbumin (OVA)-induced asthma was investigated. The ability of honey to act either as a rescuing agent in alleviating asthma-related symptoms or as a preventive agent to preclude the occurrence of asthma was also assessed.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/immunology
Effect of histamine on lecithin content in broncho-alveolar lavage fluid of rat

Janardhana Rao G

Asian Pac J Allergy Immunol, 1997 Jun;15(2):77-80.
PMID: 9346270

Deficiency of surfactant in alveoli leads to increased resistance to breathing. Histamine is a mediator in allergic respiratory diseases. Though the bronchoconstrictor effect of histamine is well recognised, histamine may have additional actions that contribute to pathogenesis in these diseases. The present study aimed to observe the effect of histamine on lecithin, a major component of alveolar surfactant. Lecithin content in broncho-alveolar lavage (BAL) fluid of healthy adult male rats was estimated by enzymatic method using Boehringer-Mannheim kits. Lecithin content in these control animals was compared with that in three groups of healthy adult male rats following subcutaneous administration of 0.06 mg of histamine diphosphate at 10 minutes, 30 minutes and 60 minutes intervals, respectively. A significant reduction in lecithin levels in BAL fluid was observed up to one hour after administration of histamine. The results indicate a possible additional action of histamine in the pathogenesis of allergic respiratory diseases.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/chemistry*
Detection of Mycobacterium tuberculosis in bronchoalveolar lavage from patients with sputum smear-negative pulmonary tuberculosis using a polymerase chain reaction assay

Liam CK, Chen YC, Yap SF, Srinivas P, Poi PJ

Respirology, 1998 Jun;3(2):125-9.
PMID: 9692522

The objective of this study was to evaluate the utility of a polymerase chain reaction (PCR) assay in detecting Mycobacterium tuberculosis in bronchoalveolar lavage (BAL) specimens of patients suspected of having active pulmonary tuberculosis (TB) but who were sputum smear-negative. Patients undergoing investigation for suspected pulmonary TB at the University Hospital, Kuala Lumpur, and who were sputum smear-negative underwent fibreoptic bronchoscopy and BAL. One portion of each lavage specimen was submitted for smear examination for acid-fast bacilli and mycobacterial culture and the other portion assayed by PCR for the presence of a 562-base pair DNA segment belonging to the insertion sequence IS986, unique to the M. tuberculosis complex. As controls, lavage specimens from patients with other lung lesions were also similarly tested. The PCR assay gave a positivity rate of 80.9% (55 of 68) compared with 8.8% of smear examination and 7.4% of culture for detecting M. tuberculosis in BAL specimens. The assay was positive in two of 45 BAL specimens from 35 control subjects. The PCR assay was more sensitive than smear and culture in detecting M. tuberculosis in BAL specimens of patients with sputum smear-negative pulmonary TB.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/microbiology*
Challenges of Covid-19 testing

Tan GC, Cheong SK

Malays J Pathol, 2020 Apr;42(1):1.
PMID: 32342925

No abstract available.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/virology
Clinico-radiologic-pathologic conference. Abnormal findings on chest radiographs of an asymptomatic patient

Staples CA, Brown MJ, Bai TR, Chan NH

Can Assoc Radiol J, 1996 Apr;47(2):136-9.
PMID: 8612087
Matched MeSH terms: Bronchoalveolar Lavage Fluid/cytology
A geranyl acetophenone targeting cysteinyl leukotriene synthesis prevents allergic airway inflammation in ovalbumin-sensitized mice

Ismail N, Jambari NN, Zareen S, Akhtar MN, Shaari K, Zamri-Saad M, et al.

Toxicol Appl Pharmacol, 2012 Mar 1;259(2):257-62.
PMID: 22266348 DOI: 10.1016/j.taap.2012.01.003

Asthma is associated with increased pulmonary inflammation and airway hyperresponsiveness. The current use of corticosteroids in the management of asthma has recently raised issues regarding safety and lack of responsiveness in 5-10% of asthmatic individuals. The aim of the present study was to investigate the therapeutic effect of a non-steroidal small molecule that has cysteinyl leukotriene (cysLT) inhibitory activity, upon attenuation of allergic lung inflammation in an acute murine model. Mice were sensitized with ovalbumin (OVA) and treated with several intraperitoneal doses (100, 20, 2 and 0.2mg/kg) of 2,4,6,-trihydroxy-3-geranylacetophenone (tHGA). Bronchoalveolar lavage was performed, blood and lung samples were obtained and respiratory function was measured. OVA sensitization increased pulmonary inflammation and pulmonary allergic inflammation was significantly reduced at doses of 100, 20 and 2mg/kg with no effect at the lowest dose of 0.2mg/kg. The beneficial effects in the lung were associated with reduced eosinophilic infiltration and reduced secretion of Th2 cytokines and cysLTs. Peripheral blood reduction of total IgE was also a prominent feature. Treatment with tHGA significantly attenuated altered airway hyperresponsiveness as measured by the enhanced pause (Penh) response to incremental doses of methacholine. These data demonstrate that tHGA, a synthetic non-steroidal small molecule, can prevent acute allergic inflammation. This proof of concept opens further avenues of research and development of tHGA as an additional option to the current armamentarium of anti-asthma therapeutics.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/cytology; Bronchoalveolar Lavage Fluid/immunology
Extrinsic allergic alveolitis

Ismail T, McSharry C, Boyd G

Respirology, 2006 May;11(3):262-8.
PMID: 16635083

Extrinsic allergic alveolitis (also known as hypersensitivity pneumonitis) is caused by repeated inhalation of mainly organic antigens by sensitized subjects. This induces a hypersensitivity response in the distal bronchioles and alveoli and subjects may present clinically with a variety of symptoms. The aims of this review are to describe the current concepts of the immunological response, the diverse clinical presentation of this disease, the relevant investigations and management, and areas for future studies.

Matched MeSH terms: Bronchoalveolar Lavage
Fulltext Cytomegalovirus infection associated with Atypical Bronchopulmonary Dysplasia in a Preterm Neonate: a case report

Aisha Fadhilah Abang Abdullah, Zurina Zainudin, Dg. Zuraini Sahadan

Malaysian Journal of Medicine and Health Sciences, 2018;14(2):97-99.
MyJurnal

Cytomegalovirus (CMV) is frequently isolated from neonates. Symptomatic infection is only apparent in 10% of affected babies with particular predilection for the reticuloendothelial and central nervous system. Isolated respiratory system involvement is rarely encountered. We report a case of a premature 32 weeks infant who required prolonged oxygen dependency and treated for bronchopulmonary dysplasia. The diagnosis of CMV pneumonitis was only discovered after detection of CMV DNA in the bronchoalveolar lavage. A high level of clinical awareness is crucial as a definite diagnosis and treatment will significantly alter the morbidity and the cost of therapy.

Matched MeSH terms: Bronchoalveolar Lavage
Fulltext Bronchopulmonary lophomoniasis: A rare cause of pneumonia in an immunosuppressed host

Wahid W, Ahmad Fahmi NA, Mohd Salleh AF, Mohd Yasin '

Respir Med Case Rep, 2019;28:100939.
PMID: 31667075 DOI: 10.1016/j.rmcr.2019.100939

Bronchopulmonary lophomoniasis is rare but immunocompromised individual is susceptible to this infection. We reported a case of bronchopulmonary lophomoniasis in a Malaysian female with systemic lupus erythromatosus. She presented with productive cough, shortness of breath and high-grade fever for 2 weeks. Physical examination revealed bronchial sound and crackles over the left lung with, reduced expansion and dull percussion in lower left lobe. Chest radiography showed consolidation of the left lung. Routine laboratory tests revealed general low cell count. Blood and sputum culture were negative. Bronchoalveolar lavage stain and culture for bacterial and fungal were negative. Bronchoalveolar lavage for Lophomonas blattarum was positive. Patient was treated with antiprotozoal drug, metronidazole. All her clinical problems resolved and she was discharged 14 days after admission.

Matched MeSH terms: Bronchoalveolar Lavage
Rapid detection of Mycobacterium tuberculosis in clinical samples by multiplex polymerase chain reaction (mPCR)

Tang TH, Ahmed SA, Musa M, Zainuddin ZF

World J Microbiol Biotechnol, 2013 Dec;29(12):2389-95.
PMID: 23807412 DOI: 10.1007/s11274-013-1407-0

Although the multi-copy and specific element IS6110 provides a good target for the detection of Mycobacterium tuberculosis complex by PCR techniques, the emergence of IS6110-negative strains suggested that false negative may occur if IS6110 alone is used as the target for detection. In this report, a multiplex polymerase chain reaction (mPCR) system was developed using primers derived from the insertion sequence IS6110 and an IS-like elements designated as B9 (GenBank accession no. U78639.1) to overcome the problem of detecting negative or low copy IS6110 containing strains of M. tuberculosis. The mPCR was evaluated using 346 clinical samples which included 283 sputum, 19 bronchial wash, 18 pleural fluid, 9 urine, 7 CSF, 6 pus, and 4 gastric lavage samples. Our results showed that the sensitivity (93.1 %) and specificity (89.6 %) of the mPCR system exceeds that of the conventional method of microscopy and culture. The mPCR assay provides an efficient strategy to detect and identify M. tuberculosis from clinical samples and enables prompt diagnosis when rapid identification of infecting mycobacteria is necessary.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/microbiology
Comparison of BACTEC MGIT 960 system and BACTEC 460 TB system for growth and detection of Mycobacteria from clinical specimens

Ganeswrie R, Chui CS, Balan S, Puthucheary SD

Malays J Pathol, 2004 Dec;26(2):99-103.
PMID: 16329561

This study was carried out to compare the performance of BACTEC MGIT 960 with the BACTEC 460 TB for growth and detection of Mycobacteria from human clinical specimens. The BACTEC MGIT 960 instrument is a fully automated system that utilizes MGIT tubes containing an oxygen sensor embedded in silicon at the bottom and filled with 7 mL of modified Middlebrook 7H9 broth. Identical samples were inoculated into the two automated systems and incubated for six weeks. Over a period of three months, 279 specimens were decontaminated and processed according to the standard CDC NALC/NaOH method, using the commercial MycoPrep kit. Forty-two specimens (15%) yielded Mycobacterium tuberculosis; 37 (88%) were detected by the fluorescent BACTEC MGIT 960 and 35 (83%) detected by the radiometric BACTEC 460 TB. Fifteen specimens (5%) yielded Mycobacterium Other Than Tuberculosis (MOTT); 10 (66%) were detected by BACTEC MGIT 960 and 11 (73%) detected by BACTEC 460 TB. The average time to detection and contamination rates and the average time to obtain results of antimicrobial susceptibility tests between the two systems were compared. The performance of the BACTEC MGIT 960 was comparable to the BACTEC 460 TB system which has been the "Gold Standard" for automated detection of TB. The former was more rapid, as sensitive and less labour intensive than the BACTEC 460. Our data demonstrates that the BACTEC MGIT 960 system is an accurate, automated and a non-radioactive alternative to the BACTEC 460 TB for the culture and susceptibility testing of M. tuberculosis.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/microbiology*
The effect of Pasteurella haemolytica A2 infection on phagocytosis efficiency of caprine broncho-alveolar macrophages

Zamri-Saad M, Mera HR

J. Vet. Med. B Infect. Dis. Vet. Public Health, 2001 Sep;48(7):513-8.
PMID: 11666033

An experiment was designed to study the in vivo effect of Pasteurella haemolytica A2 infection on the phagocytosis activity of caprine broncho-alveolar macrophages and the extent of pneumonic lesions. Twelve healthy local Kacang goats, about 7 months of age, were divided into two groups of six. Goats in group 1 were inoculated intratracheally with 4 ml inoculum containing 2.8 x 10(9) colony-forming units (CFU)/ml of Staphylococcus aureus. Goats in group 2 were inoculated intratracheally with 4 ml of inoculum containing 9.5 x 10(8) CFU/ml of Pasteurella haemolytica A2 isolated earlier from pneumonic lungs of goat. At intervals of 3 and 7 days post-challenge five goats from each group were killed and the lungs were washed with sterile phosphate-buffered saline. Smears were prepared from the lung washing fluid and the number of macrophages with phagocytic activity was determined. At day 3 post-infection, goats of both groups showed a similar pattern of pneumonic lesion. The lung washing fluid of goats in group 2 was found to contain numerous neutrophils and macrophages. Goats in group 2 showed significantly (P < 0.05) higher extent of lung lesions than group 1. Similarly, the average extent of lung lesions was significantly (P < 0.05) more severe in group 2 at day 7 post-infection. The lung washing fluid contained mostly macrophages. The phagocytic activity following S. aureus infection was more efficient and significantly (P < 0.01) higher compared with infection by P. haemolytica A2. There were weak correlations between the extent of pneumonic lesion and the phagocytic activity. Thus, goats with poor phagocytic activity were likely to develop more extensive lung lesions.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/cytology
Fulltext Draft genome sequence of Mycobacterium bolletii strain M24, a rapidly growing mycobacterium of contentious taxonomic status

Wong YL, Choo SW, Tan JL, Ong CS, Ng KP, Ngeow YF

J Bacteriol, 2012 Aug;194(16):4475.
PMID: 22843600 DOI: 10.1128/JB.00916-12

The whole-genome sequence of Mycobacterium bolletii M24, isolated from the bronchoalveolar lavage fluid of a Malaysian patient, is reported here. The circular chromosome of 5,507,730 bp helped to clarify the taxonomic position of this organism within the M. abscessus complex and revealed the presence of proteins potentially important for pathogenicity in a human host.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/microbiology
Fulltext Annotated genome sequence of Mycobacterium massiliense strain M154, belonging to the recently created taxon Mycobacterium abscessus subsp. bolletii comb. nov

Choo SW, Wong YL, Tan JL, Ong CS, Wong GJ, Ng KP, et al.

J Bacteriol, 2012 Sep;194(17):4778.
PMID: 22887675 DOI: 10.1128/JB.01043-12

Mycobacterium massiliense has recently been proposed as a member of Mycobacterium abscessus subsp. bolletii comb. nov. Strain M154, a clinical isolate from the bronchoalveolar lavage fluid of a Malaysian patient presenting with lower respiratory tract infection, was subjected to shotgun DNA sequencing with the Illumina sequencing technology to obtain whole-genome sequence data for comparison with other genetically related strains within the M. abscessus species complex.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/microbiology
A semisynthetic diterpenoid lactone inhibits NF-κB signalling to ameliorate inflammation and airway hyperresponsiveness in a mouse asthma model

Lim JC, Goh FY, Sagineedu SR, Yong AC, Sidik SM, Lajis NH, et al.

Toxicol Appl Pharmacol, 2016 07 01;302:10-22.
PMID: 27089844 DOI: 10.1016/j.taap.2016.04.004

Andrographolide (AGP) and 14-deoxy-11,12-didehydroandrographolide (DDAG), two main diterpenoid constituents of Andrographis paniculata were previously shown to ameliorate asthmatic symptoms in a mouse model. However, due to inadequacies of both compounds in terms of drug-likeness, DDAG analogues were semisynthesised for assessment of their anti-asthma activity. A selected analogue, 3,19-diacetyl-14-deoxy-11,12-didehydroandrographolide (SRS27), was tested for inhibitory activity of NF-κB activation in TNF-α-induced A549 cells and was subsequently evaluated in a mouse model of ovalbumin (OVA)-induced asthma. Female BALB/c mice, 6-8weeks old were sensitized on days 0 and 14, and challenged on days 22, 23 and 24 with OVA. Compound or vehicle (3% dimethyl sulfoxide) was administered intraperitoneally 1h before and 11h after each OVA aerosol challenge. On day 25, pulmonary eosinophilia, airway hyperresponsiveness, mucus hypersecretion, inflammatory cytokines such as IL-4, -5 and -13 in BAL fluid, gene expression of inflammatory mediators such as 5-LOX, E-selectin, VCAM-1, CCL5, TNF-α, AMCase, Ym2, YKL-40, Muc5ac, CCL2 and iNOS in animal lung tissues, and serum IgE were determined. SRS27 at 30μM was found to suppress NF-κB nuclear translocation in A549 cells. In the ovalbumin-induced mouse asthma model, SRS27 at 3mg/kg displayed a substantial decrease in pulmonary eosinophilia, BAL fluid inflammatory cytokines level, serum IgE production, mucus hypersecretion and gene expression of inflammatory mediators in lung tissues. SRS27 is the first known DDAG analogue effective in ameliorating inflammation and airway hyperresponsiveness in the ovalbumin-induced mouse asthma model.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/cytology; Bronchoalveolar Lavage Fluid/chemistry
Histamine induced decrease of lecithin levels in broncho-alveolar lavage fluid of rats is mediated by H2 receptor

Rao GJ

Asian Pac J Allergy Immunol, 2000 Sep;18(3):169-71.
PMID: 11270474

Lecithin, a major surface active substance of the surfactant system of the lung, was estimated in broncho-alveolar lavage (BAL) fluid in four groups of healthy adult male albino rats. Rats from group I were not administered any drug and acted as controls. Group II were administered histamine diphosphate. Group III were given H1 blocker (pyrilamine maleate) followed by histamine diphosphate. Group IV received H2 blocker (ranitidine hydrochloride) followed by histamine diphosphate. Lecithin content of BAL fluid in the control group was compared with that in the other three groups. A significant decrease in lecithin content was observed in the rats that received either histamine diphosphate or H1 blocker followed by histamine diphosphate. However, compared to control rats no significant difference in lecithin content was seen in rats that received H2 blocker followed by histamine diphosphate. The results clearly indicate that the decrease in surface active lecithin content in BAL fluid following administration of histamine diphosphate was unaffected by prior administration of H1 blocker, but was blocked by prior administration of H2 blocker. It was concluded that histamine induced decrease in lecithin content of BAL fluid is mediated through H2 receptors. Since the predominant source of intra-alveolar lecithin are Type II cells of the alveolar epithelium, It is possible that Type II cells have H2 receptors, stimulation of which resulted in decreased intraalveolar lecithin.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/chemistry*
Cellular and humoral responses in the respiratory tract of goats following intranasal stimulation using formalin-killed Pasteurella haemolytica A2

Zamri-Saad M, Effendy AW, Israf DA, Azmi ML

Vet Microbiol, 1999 Mar 12;65(3):233-40.
PMID: 10189198

A study to determine the immunoglobulin and cellular responses in the respiratory tract of goats following intranasal exposures to formalin-killed Pasteurella haemolytica A2 was carried out. Forty-two goats were divided into two groups. Goats in Group 1 were subjected to double intranasal exposures to formalin-killed P. haemolytica A2 while goats in Group 2 were the unexposed control. Prior to and at weekly intervals post-exposure, three goats from each group were killed, serum samples were collected while the lungs were flushed with 50 ml normal saline before the right apical lobes were fixed in 10% buffered formalin. Both serum and lung lavage fluid were subjected to enzyme-linked immunosorbent assay (ELISA) to determine the levels of IgA, IgM and IgG while the formalin-fixed tissues were examined histologically. IgA levels in the lung lavage fluid increased rapidly to reach a significantly (p < 0.05) high level as early as Week 2 post-exposure and remained significantly (p < 0.05) high throughout the study period. The IgM levels increased at an intermediate rate to reach a significantly (p < 0.05) high level at Week 3 post-exposure before they decreased to an insignificant (p > 0.05) level the following week and the weeks thereafter. IgG levels increased gradually and only reached a significantly (p < 0.01) high level at Weeks 5 and 6 of the study. The size of the bronchus-associated lymphoid tissue (BALT) and the number of lymphocytes in BALT increased significantly from Week 2 and remained high thereafter. However, differences in the numbers of BALT were insignificant (p > 0.05) initially before becoming significantly (p < 0.05) high at Weeks 5 and 6. The BALT responses were parallel to those of imunoglobulins in the lung lavage fluid.

Matched MeSH terms: Bronchoalveolar Lavage/veterinary
Assessment of the Therapeutic Effects of Fucoxanthin by Attenuating Inflammation in Ovalbumin-Induced Asthma in an Experimental Animal Model

Yang X, Guo G, Dang M, Yan L, Kang X, Jia K, et al.

J Environ Pathol Toxicol Oncol, 2019;38(3):229-238.
PMID: 31679310 DOI: 10.1615/JEnvironPatholToxicolOncol.2019030154

Asthma has affected more than 300 million people worldwide and is considered one of the most debilitating global public health problems based on a recent statistical report from the Global Initiative for Asthma. Inflammation of the airways leads to the various interrelated mechanisms of innate and adaptive immunity acting mutually with the epithelium of the respiratory organ. Fucoxanthin is an orange or brown pigment which is naturally found in various seaweeds. To the best of our knowledge, there are no scientific claims or evidence of the curative effects of fucoxanthin against asthma. Hence, this present research was designed to investigate the curative activity of fucoxanthin against ovalbumin-induced asthma in a mouse model. Fucoxanthin (50 mg/kg) showed significant (P < 0.001) antiasthma activity. It effectively decreased intracellular secretion of reactive oxygen species and increased antioxidant enzyme activity. Fucoxanthin also decreased inflammatory cytokine markers in bronchoalveolar lavage fluid. Because fucoxanthin showed effective antiasthma activity against ovalbumin-induced asthma in experimental animals, further research on this natural antioxidant could lead to development of a novel drug for the treatment of asthma in humans.

Matched MeSH terms: Bronchoalveolar Lavage Fluid/chemistry

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