Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 202
Filter
Add more filters

Complementary Medicines
Publication year range
1.
J Infect Public Health ; 17(5): 767-773, 2024 May.
Article in English | MEDLINE | ID: mdl-38518682

ABSTRACT

BACKGROUND: The common cold is one of the most frequently occurring illnesses worldwide. The aim of this study was to determine which OTC anti-common cold medications were most often recommended by pharmacists and if the COVID-19 pandemic affected such recommendations. METHODS: Non-interventional, observational research trial using a self-developed questionnaire to collect data on pharmacists' recommendations for anti-common cold OTC treatment. The data were collected during the COVID-19 pandemic (December 2021-February 2022) in four large community network pharmacies in Lodz (Poland) and then compared with an analogue period of time before the pandemic (December 2019-February 2020). RESULTS: During COVID-19 pandemic there was a significant (p < 0.05) reduction in paracetamol, acetylsalicylic acid, metamizole magnesium, inosines, alpha-mimetics, mucolytics, homeopathics, and sore throat products and an increase in other tablets/capsules and add-on product recommendations. There was a significant relationship (p < 0.05, OR > 1) between the recommended frequency of paracetamol, inosines, sore throat products (each symptom), metamizole magnesium (headache, fever), acetylsalicylic acid (headache, fever, fatigue), NSAIDs, alpha-mimetics (headache, rhinorrhea), pseudoephedrine (rhinorrhea), homeopathics (headache), herbal products (fatigue), antihistamines (rhinorrhea, cough), and mucolytics (headache, fever, cough). CONCLUSIONS: Favorable prices (before COVID-19 pandemic) and reports on common NSAIDs side effects (beginning of the pandemic) led to high sale of paracetamol. Increased awareness of clinical effectiveness of some medications or their reduced availability influenced their limited recommendations.


Subject(s)
COVID-19 , Common Cold , Pharyngitis , Humans , Acetaminophen/therapeutic use , Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Aspirin/therapeutic use , Common Cold/drug therapy , Common Cold/chemically induced , Cough , Expectorants/therapeutic use , Headache/chemically induced , Headache/drug therapy , Nonprescription Drugs/therapeutic use , Pandemics , Pharmacists , Pharyngitis/chemically induced , Pharyngitis/drug therapy , Rhinorrhea
2.
J Ethnopharmacol ; 315: 116720, 2023 Oct 28.
Article in English | MEDLINE | ID: mdl-37268256

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Pinellia ternata (Thunb.) Breit. (PT) has been demonstrated to be effective against the allergic airway inflammation (AAI) in clinical practices, especially in cold asthma (CA). Until now, the active ingredients, protective effect, and possible mechanism of PT against CA remain unknown. AIM OF THE STUDY: The aim of this investigation was to examine the therapeutic impact and elucidate the underlying mechanism of PT on the AAI of CA. METHODS: The compositions of PT water extract were determined via the UPLC-Q-TOF-MS/MS. The ovalbumin (OVA) and cold-water baths were used to induce CA in female mice. Morphological characteristic observations, expectorant effect, bronchial hyperreactivity (BHR), excessive mucus secretion, and inflammatory factors were used to uncover the treatment effect of PT water extract. In addition, the mucin 5AC (MUC5AC) mRNA and protein levels and the aquaporin 5 (AQP5) mRNA and protein levels were detected via qRT-PCR, immunohistochemistry (IHC), and western blotting. Moreover, the protein expressions associated with the TLR4, NF-κB, and NLRP3 signaling pathway were monitored by western blot analysis. RESULTS: Thirty-eight compounds were identified from PT water extract. PT showed significant therapeutic effects on mice with cold asthma in terms of expectorant activity, histopathological changes, airway inflammation, mucus secretion, and hyperreactivity. PT exhibited good anti-inflammatory effects in vitro and in vivo. The expression levels of MUC5AC mRNA and protein decreased significantly, while AQP5 expression levels increased significantly in the lung tissues of mice after administration with PT as compared to mice induced by CA. Furthermore, the protein expressions of TLR4, p-iκB, p-p65, IL-1ß, IL-18, NLRP3, cleaved caspase-1, and ASC were markedly reduced following PT treatment. CONCLUSIONS: PT attenuated the AAI of CA by modulating Th1- and Th2-type cytokines. PT could inhibit the TLR4-medicated NF-kB signaling pathway and activate the NLRP3 inflammasome to reduce CA. This study provides an alternative therapeutic agent of the AAI of CA after administration with PT.


Subject(s)
Asthma , Pinellia , Female , Mice , Animals , NF-kappa B/metabolism , NLR Family, Pyrin Domain-Containing 3 Protein/metabolism , Pinellia/chemistry , Toll-Like Receptor 4/metabolism , Expectorants/therapeutic use , Tandem Mass Spectrometry , Asthma/pathology , Signal Transduction , Lung , Inflammation/pathology , RNA, Messenger/metabolism , Ovalbumin/pharmacology
3.
Adv Respir Med ; 91(2): 146-163, 2023 Apr 14.
Article in English | MEDLINE | ID: mdl-37102780

ABSTRACT

Respiratory diseases such as cystic fibrosis, COPD, and COVID-19 are difficult to treat owing to viscous secretions in the airways that evade mucocilliary clearance. Earlier studies have shown success with BromAc as a mucolytic agent. Hence, we tested the formulation on two gelatinous airway representative sputa models, to determine whether similar efficacy exist. Sputum lodged in an endotracheal tube was treated to aerosol N-acetylcysteine, bromelain, or their combination (BromAc). After measuring the particle size of aerosolized BromAc, the apparent viscosity was measured using a capillary tube method, whilst the sputum flow was assessed using a 0.5 mL pipette. Further, the concentration of the agents in the sputa after treatment were quantified using chromogenic assays. The interaction index of the different formulations was also determined. Results indicated that the mean particle size of BromAc was suitable for aerosol delivery. Bromelain and N-acetylcysteine affected both the viscosities and pipette flow in the two sputa models. BromAc showed a greater rheological effect on both the sputa models compared to individual agents. Further, a correlation was found between the rheological effects and the concentration of agents in the sputa. The combination index using viscosity measurements showed synergy only with 250 µg/mL bromelain + 20 mg/mL NAC whilst flow speed showed synergy for both combinations of bromelain (125 and 250 µg/mL) with 20 mg/mL NAC. Hence, this study indicates that BromAc may be used as a successful mucolytic for clearing airway congestion caused by thick mucinous immobile secretions.


Subject(s)
COVID-19 , Respiration Disorders , Humans , Acetylcysteine/therapeutic use , Acetylcysteine/pharmacology , Sputum , Bromelains/therapeutic use , Bromelains/pharmacology , Expectorants/therapeutic use , Expectorants/pharmacology , Rheology
4.
J Ethnopharmacol ; 295: 115449, 2022 Sep 15.
Article in English | MEDLINE | ID: mdl-35688257

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Pinelliae Rhizoma Praeparatum (PRP) is a traditional processed product of Pinellia ternata (Thunb.) Berit., which mainly used for treating cold asthma (CA). However, the mechanism of action of PRP for treating CA have not been fully elucidated. AIM OF THE STUDY: To investigate the core active constituents and the pharmacological mechanism of PRP against CA. MATERIALS AND METHODS: Ovalbumin (OVA) and cold water-induced cold asthma model were established in male mice. The effects of water extract from PRP were evaluated by general morphological observation, expectorant activity, airway hyperresponsiveness, mucus hypersecretion, inflammatory cytokines, etc. Additionally, the mRNA and protein expression of mucin 5AC (MUC5AC) and aquaporin 5 (AQP5) in vivo and in vitro were detected by immunohistochemistry (IHC), qRT-PCR, and western blotting. The mechanisms of action were investigated through network pharmacology and transcriptomic, and validated through western blotting and molecular docking. RESULTS: PRP exhibited a favorable expectorant activity, and significantly reduced the airway inflammation, mucus secretion, and hyperresponsiveness in cold asthma model. It also reduced the levels of IL-4, IL-5, IL-8, and IL-13 in bronchoalveolar lavage fluid (BALF) and IL-4 and total IgE in serum, while obviously increased the levels of IL-10 and IFN-γ in serum for asthmatic mice. Meanwhile, PRP also attenuated the pathological changes and mucus production in cold asthmatic mice. Moreover, the downregulation of MUC5AC and upregulation of AQP 5 were detected by western blotting and qRT-PCR after administration with PRP both in vivo and in vitro. PRP expectedly inhibited the protein expression of PKC-α, SRC, p-EGFR, p-ERK1/2, p-JNK, p-p38, p-PI3K, and p-Akt levels in vivo. CONCLUSIONS: These combined data showed that PRP suppressed the allergic airway inflammation of CA by regulating the balance of Th1 and Th2 cytokines and the possible involvement of the PKC/EGFR/MAPK/PI3K-Akt signaling pathway. Pentadecanoic acid, licochalcone A, ß-sitosterol, etc. were considered as main active ingredients of PRP against CA. This study provides a novel perspective of the classical herbal processed product PRP in the treatment of CA.


Subject(s)
Asthma , Pinellia , Animals , Asthma/pathology , Bronchoalveolar Lavage Fluid/chemistry , Cytokines/metabolism , ErbB Receptors/metabolism , Expectorants/therapeutic use , Inflammation/metabolism , Interleukin-4/metabolism , Lung , MAP Kinase Signaling System , Male , Mice , Mice, Inbred BALB C , Molecular Docking Simulation , Mucus/metabolism , Ovalbumin/pharmacology , Phosphatidylinositol 3-Kinases/metabolism , Pinellia/chemistry , Proto-Oncogene Proteins c-akt/metabolism , Signal Transduction , Water/pharmacology
5.
Drug Discov Ther ; 16(3): 139-141, 2022 Jul 20.
Article in English | MEDLINE | ID: mdl-35527020

ABSTRACT

The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has a high rate of transmission and it exhibits immune escape characteristics. N-acetyl-L-cysteine (NAC) is a precursor of reduced glutathione (GSH), which can enter cells to play an antioxidant role, so it is better than glutathione. Patients tolerate NAC well, and adverse reactions are rare and mild, so this type of drug with multiple actions is considered to be a mucolytic agent as well as a drug for the prevention/treatment of various diseases, including COVID-19. Previous studies indicated that the clinical effectiveness of NAC is dose-dependent. Low-dose NAC (0.2 g tid for adults) is a mucolytic expectorant, high-dose NAC (0.6 g bid or tid) has expectorant action as well as antioxidant action, and extreme-dose NAC (300 mg/kg.d) is used for detoxification in cases of an acetaminophen overdose. Presumably, orally administered high-dose NAC (0.6 g tid for adults and 10 mg/kg tid for children) could be used as an adjuvant to treat an Omicron infection. It should reduce the time to negative conversion and prevent severe COVID-19, reducing the duration of hospitalization and increasing the bed turnover rate.


Subject(s)
Acetylcysteine , COVID-19 Drug Treatment , Acetylcysteine/therapeutic use , Antioxidants/therapeutic use , Expectorants/therapeutic use , Glutathione , Humans , SARS-CoV-2
6.
Molecules ; 27(3)2022 Jan 24.
Article in English | MEDLINE | ID: mdl-35164006

ABSTRACT

Naringenin (NRG) is a natural flavonoid compound abundantly present in citrus fruits and has the potential to treat respiratory disorders. However, the clinical therapeutic effect of NRG is limited by its low bioavailability due to poor solubility. To enhance the solubility, naringenin nanosuspensions (NRG-NSps) were prepared by applying tocopherol polyethylene glycol succinate (TPGS) as the nanocarrier via the media-milling method. The particle size, morphology, and drug-loading content of NRG-NSps were examined, and the stability was evaluated by detecting particle size changes in different physiological media. NRG-NSps exhibited a flaky appearance with a mean diameter of 216.9 nm, and the drug-loading content was 66.7%. NRG-NSps exhibited good storage stability and media stability. NRG-NSps presented a sustainable release profile, and the cumulative drug-release rate approached approximately 95% within 7 d. NRG-NSps improved the antitussive effect significantly compared with the original NRG, the cough frequency was decreased from 22 to 15 times, and the cough incubation period was prolonged from 85.3 to 121.6 s. Besides, NRG-NSps also enhanced expectorant effects significantly, and phenol red secretion was increased from 1.02 to 1.45 µg/mL. These results indicate that NRG-NSps could enhance the bioavailability of NRG significantly and possess a potential clinical application.


Subject(s)
Antitussive Agents , Expectorants , Flavanones/pharmacology , Animals , Antitussive Agents/chemical synthesis , Antitussive Agents/chemistry , Antitussive Agents/pharmacology , Antitussive Agents/therapeutic use , Biological Availability , Cough/drug therapy , Cough/pathology , Disease Models, Animal , Drug Delivery Systems , Drug Evaluation, Preclinical , Drug Liberation , Expectorants/chemical synthesis , Expectorants/chemistry , Expectorants/pharmacology , Expectorants/therapeutic use , Flavanones/chemical synthesis , Flavanones/chemistry , Flavanones/therapeutic use , Mice , Nanoparticles , Particle Size , Solubility , Suspensions
7.
Planta Med ; 88(13): 1223-1232, 2022 Oct.
Article in English | MEDLINE | ID: mdl-34715694

ABSTRACT

Cannabis sativa is a millenary medicinal plant. However, contrary to worldwide paradigm-shifting, countries like Brazil still prohibit C. sativa cultivation and its medicinal use, even though many populations use aerial parts and roots of this plant for healthcare. As such, the objective of this work was to identify substances in the samples of the C. sativa roots, tracing a correlation with antitussive and expectorant effects. Therefore, samples of C. sativa roots were donated by the Polícia Federal Brasileira, and its aqueous extract (AECsR) was prepared with subsequent lyophilization, to maintain the material stability. After that, the material was analyzed by LC-MS to observe its chemical profile. Four samples (AECsR-A, B, C, and D) were tested in animal models of citric acid-induced cough (0.4 M) and phenol red expectoration (500 mg/kg). Using LC-MS it was possible to identify 5 molecules in C. sativa roots: p-coumaroyltyramine, tetrahydrocannabinol-C4, feruoiltyramine, anhydrocanabisativine, and cannabisativine. In experimental protocols, male mice (Mus musculus) were treated with samples of AECsR at doses of 12.5, 25, or 50 mg/kg regardless of the pharmacological test. In these tests, all samples showed the potential to treat cough and promote fluid expectoration, differing only in the dose at which these effects were observed. Therefore, the data showed that the C. sativa roots of the Brazilian Northeast showed antitussive and expectorant effects, even with intense secondary metabolites' variation, which alters its potency, but not its effect. This highlights the importance of this medicinal plant for future therapy and corroborates to traditional use.


Subject(s)
Antitussive Agents , Cannabis , Plants, Medicinal , Mice , Animals , Antitussive Agents/pharmacology , Antitussive Agents/therapeutic use , Expectorants/pharmacology , Expectorants/therapeutic use , Cough/chemically induced , Cough/drug therapy , Brazil , Phenolsulfonphthalein , Chromatography, Liquid , Dronabinol/therapeutic use , Tandem Mass Spectrometry , Plants, Medicinal/chemistry , Citric Acid/toxicity , Citric Acid/therapeutic use
9.
J Med Food ; 23(6): 611-632, 2020 Jun.
Article in English | MEDLINE | ID: mdl-32316823

ABSTRACT

Industrial development, along with the rapid growth of the economy, has greatly improved the quality of life in humans. Moreover, advancements in medical technology have increased life expectancy. Small particles increase airway inflammation when they penetrate the alveoli. We observed that GHX02 decreased the frequency and delayed the onset time of citric acid-induced coughing in guinea pigs. A phenol red secretion assay indicated that the GHX02 extract exhibits potent expectorant activity. The GHX02 extract also greatly reduced leukocyte levels. Our results indicate that GHX02 inhibits airway inflammation, reduces sputum production, and relieves cough. The GHX02 extract suppressed histamine release from mast cells resulting from compound 48/80-induced degranulation. The extract exhibited antimicrobial activity against Streptococcus pneumoniae and significantly inhibited the formation of LTC4. At high concentrations, the GHX02 extract suppressed the formation of PGE2 (prostaglandin E2). Interleukin (IL)-4 and IL-13 levels decreased with an increasing dosage of GHX02. Oral administration of the GHX02 extract suppressed PM10D-induced inflammatory symptoms in the lung, including increased alveolar wall thickness, accumulation of collagen fibers, and cytokine release. Treatment with the GHX02 extract also resulted in lower levels of inflammatory cells, in bronchoalveolar lavage fluid and lung tissue. Our results indicate that GHX02 may be a useful therapeutic agent for treatment of respiratory diseases.


Subject(s)
Expectorants/therapeutic use , Lung/drug effects , Particulate Matter/toxicity , Plant Extracts/therapeutic use , Animals , Bronchoalveolar Lavage Fluid/cytology , Guinea Pigs , Histamine Release , Lung/pathology , Mast Cells/metabolism
10.
Adv Ther ; 37(5): 1737-1753, 2020 05.
Article in English | MEDLINE | ID: mdl-32200535

ABSTRACT

The mucolytic monoterpene 1,8-cineole (eucalyptol), the major constituent of eucalyptus species, is well known for its anti-inflammatory, antioxidant, bronchodilatory, antiviral and antimicrobial effects. The main protective antiviral, anti-inflammatory and mucolytic mechanisms of 1,8-cineole are the induction of interferon regulatory factor 3 (IRF3), the control of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) along with decreasing mucin genes (MUC2, MUC19). In normal human monocytes direct inhibition was shown of reactive oxygen species (ROS)-mediated mucus hypersecretion and of steroid resistence inducing superoxides (O2·-) and pro-inflammatory hydrogen peroxides (H2O2) with partial control of superoxide dismutase (SOD), which enzymatically metabolizes O2·- into H2O2. By inhibition of NF-κB, 1,8-cineole, at relevant plasma concentrations (1.5 µg/ml), strongly and significantly inhibited in normal human monocyte lipopolysaccharide (LPS)-stimulated cytokines relevant for exacerbation (tumour necrosis factor alpha (TNFα), interleukin (IL)-1ß and systemic inflammation (IL-6, IL-8). Infectious agents and environmental noxa have access via TNFα and IL-1ß to the immune system with induction of bronchitis complaints and exacerbations of chronic obstructive pulmonary disease (COPD), asthma and asthma-COPD overlap. In lymphocytes from healthy human donors 1,8-cineole inhibited TNFα, IL-1ß, IL-4 and IL-5 and demonstrated for the first time control of Th1/2-type inflammation. 1,8-Cineole at relevant plasma levels increased additively in vitro the efficacy of inhaled guideline medications of budesonide (BUD) and budesonide + formoterol ,and preliminary data also showed increased efficacy of long-acting muscarinic receptor antagonist (LAMA)-mediated cytokine inhibition in vitro. On the basis of the preclinical data, earlier randomised controlled studies with adjunctive therapy of 1,8-cineole (3 × 200 mg/day) for 6 months showed improvement of uncontrolled asthma by significant improvement of lung function, nocturnal asthma and quality of life scores and in COPD decrease of exacerbations (- 38.5%) (during wintertime). This review reports an update with reference to the literature of 1,8-cineole, also as adjunctive therapy, as a therapeutic agent for the protection and control of inflammatory airway diseases.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Antitussive Agents/therapeutic use , Eucalyptol/therapeutic use , Expectorants/therapeutic use , Pulmonary Disease, Chronic Obstructive/drug therapy , Administration, Inhalation , Adult , Aged , Aged, 80 and over , Female , Formoterol Fumarate/therapeutic use , Humans , Male , Middle Aged
11.
Medicine (Baltimore) ; 98(18): e15140, 2019 May.
Article in English | MEDLINE | ID: mdl-31045757

ABSTRACT

RATIONALE: Idiopathic pulmonary fibrosis (IPF) is a special form of spontaneous, chronic, progressive interstitial fibrotic pneumonia of unknown cause, and treatments for IPF have shown a poor prognosis. This study reports a new treatment, traditional Chinese medicine (TCM) therapy, for tonifying Qi-deficiency of lung-kidney in a 64-year-old patient with IPF. PATIENT CONCERNS: A 64-year-old man, who complained of cough and asthma, was diagnosed as IPF with mild impairment in lung function by thoracic high-resolution computed tomography and pulmonary function test. He received an 18-month N-acetylcysteine monotherapy but had no improvement in lung function. DIAGNOSES: IPF with mild impairment in lung function was diagnosed. INTERVENTIONS: The Chinese herbal medicine composition was decocted in 300 ml water for oral administration with 150 ml decoction twice daily in June 2017. OUTCOMES: The pulmonary function test showed that diffusing capacity for carbon monoxide had increased to 81% of predicted back to normal after 2-month TCM monotherapy. And diffusing capacity for carbon monoxide had increased to 89% of predicted, and forced expiratory volume in 1 s/forced vital capacity ratio increased to 92% at 14-month follow-up. No adverse events occurred during the 14 months of therapy and observation. LESSONS: The treatment by TCM therapy of tonifying lung-kidney's Qi-deficiency for IPF can improve the pulmonary function and reverse disease progression; it may be considered as a complementary treatment for IPF with mild-to-moderate impairment. However, the insights provided in this case report require further exploration and verification.


Subject(s)
Idiopathic Pulmonary Fibrosis/therapy , Kidney/drug effects , Lung/drug effects , Medicine, Chinese Traditional/methods , Acetylcysteine/therapeutic use , Carbon Monoxide/metabolism , Disease Progression , Expectorants/therapeutic use , Forced Expiratory Volume/drug effects , Humans , Idiopathic Pulmonary Fibrosis/diagnostic imaging , Idiopathic Pulmonary Fibrosis/mortality , Idiopathic Pulmonary Fibrosis/physiopathology , Kidney/physiopathology , Lung/physiopathology , Male , Middle Aged , Pulmonary Diffusing Capacity/drug effects , Respiratory Function Tests/methods , Treatment Outcome , Vital Capacity/drug effects , Yin Deficiency
12.
J Ethnopharmacol ; 239: 111915, 2019 Jul 15.
Article in English | MEDLINE | ID: mdl-31039428

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Adenophora triphylla var. japonica is frequently used as an oriental medicinal plant in Korea, China, and Japan for its anti-inflammatory, antitussive, and hepatoprotective effects. AIM OF THE STUDY: In the present study, the antitussive, expectorant, and anti-inflammatory effects of AR powder were investigated using animal models to evaluate their potential to treat respiratory disorders. MATERIALS AND METHODS: AR powder was administered orally to mice once daily for 11 days, at dose levels of 400, 200, and 100 mg/kg. Theobromine (TB), ambroxol (AM) and dexamethasone (DEXA) were used as standard drugs for antitussive effects, expectorant effects and anti-inflammatory effects, respectively. Evaluations of antitussive effects were based on changes in body weight, the number of cough responses and the histopathology of the lung and trachea. Expectorant effects were based on changes in the body weight, macroscopic observations of body surface redness, the mucous secretion of the trachea and histopathology of lung (secondary bronchus). Anti-inflammatory effects were based on changes in the body weight, macroscopic observations involving redness and edema of the treated ear, absolute and relative ear weights and histopathology of the treated ears. RESULTS: Allergic acute inflammation and coughing induced by exposure to NH4OH and symptoms of xylene-induced contact dermatitis were significantly inhibited by treatment with AR powder in a dose-dependent manner. Histological analyses revealed that AR powder decreased the OD values in trachea lavage fluid, reduced body surface redness, thicknesses of intrapulmonary secondary bronchus mucosa, and the number of PAS-positive mucous producing cells. Overall, AR powder administered at 200 mg/kg displayed superior antitussive and expectorant effects as compared to TB (50 mg/kg), and AM (250 mg/kg). At the highest concentration (400 mg/kg) AR powder displayed only moderately improved anti-inflammatory activities as compared to DEXA (1 mg/kg). CONCLUSION: The results obtained in this study suggest that AR powder exerts dose-dependent, favorable antitussive, expectorant, and anti-inflammatory activities achieved through modulation of the activity of mast cells and respiratory mucous production. Therefore, AR powder may serve as a therapeutic agent in various respiratory disorders, especially those that occur as a result of environmental toxicants.


Subject(s)
Anti-Inflammatory Agents/therapeutic use , Antitussive Agents/therapeutic use , Campanulaceae , Cough/drug therapy , Dermatitis, Contact/drug therapy , Expectorants/therapeutic use , Ammonium Hydroxide , Animals , Cough/chemically induced , Cough/metabolism , Cough/pathology , Dermatitis, Contact/pathology , Lung/drug effects , Lung/pathology , Male , Mice, Inbred ICR , Mucus/drug effects , Mucus/metabolism , Plant Roots , Powders , Respiratory Mucosa/drug effects , Respiratory Mucosa/metabolism , Skin/drug effects , Skin/pathology , Trachea/drug effects , Trachea/pathology , Xylenes
13.
J Ethnopharmacol ; 238: 111853, 2019 Jun 28.
Article in English | MEDLINE | ID: mdl-30954613

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Fritillariae Bulbus ("Beimu" in Chinese) is a famous traditional Chinese medicine used to treat cough, expectoration and asthma for more than 2000 years, which belongs to the Fritillaria genus in Liliaceae family. Bulbs of Fritillaria cirrhosa D.Don (BFC) and bulbs of Fritillaria pallidiflora Schrenk (BFP) are two important drugs of Beimu. Due to the significant similarities in their outward appearance characters and chemical profiles, BFC has often been adulterated with BFP in Chinese Traditional Medicine markets. AIM OF THE STUDY: This study aims to compare the oral acute toxicity and the traditional pharmacological activities including antitussive, expectorant and anti-inflammatory effects between the extract of BFC and BFP, to clear and definite if the BFP can be used as a substitute of the BFC in the application of traditional medicine. MATERIALS AND METHODS: The extracts were prepared through refluxing with 80% ethanol solvent. For the acute toxicity tests, graded doses of BFP extracts and the maximum dose of BFC extracts were administered orally to mice. The animals were observed for toxic symptoms and mortality daily for 14 days. For the pharmacological activities tests, graded doses of BFP and BFC extracts were administered orally to mice. To observe the effects relieving cough, expelling phlegm and lessening the ear swelling of BFC extracts and BFP extracts through ammonia liquor inducing cough, phenol red apophlegmating in mice and the xylene-induced auricular swelling of mouse, respectively. RESULTS: In the acute toxicity study, the LD50 value of BFP in mice was calculated to be 213.57 g/kg body weight, and the maximum feasible dose (MFD) value of BFC in mice was 452.14 g/kg. Histopathological analysis has shown inflammatory cells infiltration and cells edema in liver, multinucleated giant cell proliferation in spleen, perivascular exudate and hemorrhage in lung, glomerulus atrophy in kidney of mice after oral administrations of BFP extracts. But only liver cells edema was observed in BFC group. Both BFC extract and BFP extract significantly increased latent period of cough and inhibited cough frequency in mice induced by ammonia. Besides, the two extracts also obviously enhanced mice's tracheal phenol red output in expectorant assessment and inhibited the development of ear edema in anti-inflammatory evaluation assay. CONCLUSION: To summarize, the BFP has the significant similarities in morphological characteristics, chemical profiles and traditional pharmacological activities compared with the BFC. The result of this study provide some valid scientific support for using BFP as a plant substitute of the BFC, but considering the toxicity of BFP is much higher than BFC, we don't recommend long-term oral administration of BFP or exceeding recommended dosage of Chinese Pharmacopoeia 2015.


Subject(s)
Anti-Inflammatory Agents , Antitussive Agents , Cough/drug therapy , Edema/drug therapy , Expectorants , Fritillaria , Plant Extracts , Administration, Oral , Animals , Anti-Inflammatory Agents/therapeutic use , Anti-Inflammatory Agents/toxicity , Antitussive Agents/therapeutic use , Antitussive Agents/toxicity , Expectorants/therapeutic use , Expectorants/toxicity , Female , Kidney/drug effects , Kidney/pathology , Liver/drug effects , Liver/pathology , Lung/drug effects , Lung/pathology , Male , Medicine, Chinese Traditional , Mice , Plant Extracts/therapeutic use , Plant Extracts/toxicity , Plant Roots , Spleen/drug effects , Spleen/pathology , Toxicity Tests, Acute
14.
Respir Med ; 147: 37-43, 2019 02.
Article in English | MEDLINE | ID: mdl-30704697

ABSTRACT

BACKGROUND: N-acetylcysteine (NAC) 600 mg twice daily is a well-tolerated oral antioxidant mucolytic that reduces the risk of moderate to severe chronic obstructive pulmonary disease (COPD) exacerbations. PANTHEON was one of the largest studies to evaluate NAC in COPD. It recruited current, ex- and never-smokers, concomitantly treated with other medications, and used a symptom-based definition of COPD exacerbations rather than the conventional healthcare resource utilisation (HCU) criteria. METHODS: This manuscript reports post-hoc analyses of the PANTHEON dataset investigating whether smoking status or use of concomitant medications influenced the efficacy of NAC in terms of reducing exacerbations, defined according to HCU. RESULTS: Compared with placebo (N = 482), NAC (N = 482) reduced the rate of HCU events by 20% (p = 0.0027), with a larger effect in current/ex-smokers (23%; p < 0.01). In patients receiving NAC and long-acting inhaled bronchodilator(s) but no ICS, there was a 60% reduction in the rate of exacerbations compared to those receiving placebo, long-acting bronchodilator(s) and ICS (p < 0.0001). CONCLUSIONS: Overall, these post-hoc hypothesis-generating analyses confirm that NAC reduces the rate of COPD exacerbations, particularly in patients with COPD who have a significant smoking history, and in those not treated with ICS. NAC may provide an alternative to ICS-containing combinations in these patient subgroups. CLINICAL TRIAL REGISTRATION: Chinese Clinical Trials Registry, ChiCTR-TRC-09000460.


Subject(s)
Acetylcysteine/therapeutic use , Expectorants/therapeutic use , Pulmonary Disease, Chronic Obstructive/drug therapy , Smoking/adverse effects , Acetylcysteine/administration & dosage , Administration, Inhalation , Administration, Oral , Adrenal Cortex Hormones/administration & dosage , Adrenal Cortex Hormones/therapeutic use , Adrenergic beta-2 Receptor Agonists/administration & dosage , Adrenergic beta-2 Receptor Agonists/therapeutic use , Aged , Bronchodilator Agents/therapeutic use , China/epidemiology , Disease Progression , Expectorants/administration & dosage , Female , Humans , Male , Middle Aged , Placebos/administration & dosage , Pulmonary Disease, Chronic Obstructive/epidemiology , Pulmonary Disease, Chronic Obstructive/physiopathology , Severity of Illness Index
15.
Respirology ; 24(3): 227-237, 2019 03.
Article in English | MEDLINE | ID: mdl-30650472

ABSTRACT

This paper aims to provide physiological rationale for airway clearance, mucoactive therapy and pulmonary rehabilitation (PR) (or exercise interventions) in bronchiectasis. There is increasing emphasis on the role of airway clearance techniques (ACT) in the management of bronchiectasis. No single ACT has currently shown superior effect over another. Given the large range of different techniques available, consideration of the physiological effects underpinning a technique including expiratory flow, ventilation and oscillation, is essential to effectively personalize ACT. Key clinical trials of mucoactives in bronchiectasis are underway and will provide clarity on the role of these agents in the management of patients with bronchiectasis. Prescription of mucoactive therapies should be done in conjunction with ACT and therefore the mechanism of action of mucoactive drugs and their timing with ACT should be taken into consideration. PR and/or exercise training are recommended in all current bronchiectasis guidelines. There is a clear physiological rationale that muscle weakness and physical inactivity may play a role in disease progression as well as impacting health-related quality of life, frequency of pulmonary exacerbations and ability to mobilize sputum. However, there are residual unanswered questions surrounding the delivery and accessibility to PR. This review summarizes the physiological principles and supporting evidence for airway clearance, mucoactive medication and PR, which are key components in the management of bronchiectasis.


Subject(s)
Bronchiectasis/physiopathology , Bronchiectasis/therapy , Expectorants/therapeutic use , Mucociliary Clearance , Respiratory Therapy/methods , Breathing Exercises , Bronchiectasis/rehabilitation , Disease Progression , Exercise Therapy , Humans , Quality of Life , Sputum
17.
BMJ Open ; 8(1): e018788, 2018 01 31.
Article in English | MEDLINE | ID: mdl-29391364

ABSTRACT

OBJECTIVES: Acute rhinosinusitis (ARS) has a high incidence. Diagnosis is clinical, and evolution is mostly self-limited. The aim of this study was to describe the sociodemographic characteristics and use of diagnostic tools and medications in patients with ARS. DESIGN: This is a prospective observational study in real-life clinical practice. SETTING: Patients with clinical diagnosis of ARS (n=2610) were included from ear, nose and throat clinics in Spain. A second visit at resolution was done. PARTICIPANTS: Patients were classified according to the duration of symptoms: viral ARS (≤10 days), postviral ARS (>10 days, ≤12 weeks) and chronic rhinosinusitis (>12 weeks). MAIN OUTCOME MEASURES: Sociodemographic characteristics, symptoms, disease severity, quality of life (Sino-Nasal Outcome Test-16), used diagnostic tools and medications, and the management performed by primary care physicians (PCPs) and by otorhinolaryngologists (ORLs) were assessed. RESULTS: Of the patients 36% were classified as having viral ARS, 63% postviral ARS and 1% as chronic rhinosinusitis. Working in a poorly air-conditioned environment was a risk factor (OR: 2.26, 95% CI 1.27 to 4.04) in developing postviral ARS. A higher number of diagnostic tools (rhinoscopy/endoscopy: 80% vs 70%; plain X-ray: 70% vs 55%; CT scan: 22% vs 12%; P<0.0001) were performed in postviral than viral cases. PCPs performed more X-rays than ORLs (P<0.0001). Patients, more those with postviral than viral ARS, received a high number of medications (oral antibiotics: 76% vs 62%; intranasal corticosteroids: 54% vs 38%; antihistamines: 46% vs 31%; mucolytic: 48% vs 60%; P<0.0001). PCPs prescribed more antibiotics, antihistamines and mucolytics than ORLs (P<0.0068). More patients with postviral than viral ARS reported symptoms of potential complications (1.5% vs 0.4%; P=0.0603). Independently of prescribed medications, quality of life was more affected in patients with postviral (38.7±14.2 vs 36.0±15.3; P=0.0031) than those with viral ARS. ARS resolution was obtained after 6.04 (viral) and 16.55 (postviral) days, with intranasal corticosteroids being associated with longer (OR: 1.07, 95% 1.02 to 1.12) and phytotherapy with shorter (OR: 0.95, 95% CI 0.91 to 1.00) duration. CONCLUSIONS: There is a significant overuse of diagnostic tools and prescribed medications, predominantly oral antibiotics, by PCPs and ORLs, for viral and postviral ARS.


Subject(s)
Medical Overuse , Otolaryngology , Primary Health Care , Rhinitis/drug therapy , Sinusitis/drug therapy , Virus Diseases/drug therapy , Acute Disease , Adrenal Cortex Hormones/therapeutic use , Adult , Anti-Bacterial Agents/therapeutic use , Chronic Disease , Endoscopy , Expectorants/therapeutic use , Female , Histamine Antagonists/therapeutic use , Humans , Male , Middle Aged , Physicians, Primary Care , Prospective Studies , Radiography , Rhinitis/diagnosis , Rhinitis/etiology , Sinusitis/diagnosis , Sinusitis/etiology , Spain , Virus Diseases/diagnosis , Virus Diseases/etiology
18.
Pol Merkur Lekarski ; 43(255): 140-144, 2017 Sep 29.
Article in Polish | MEDLINE | ID: mdl-28987048

ABSTRACT

Based on the analysis of data from clinical trials it could be postulated that N-acetylcysteine has a positive impact on the treatment of various diseases. However, less is known about specific molecular and physiological mechanisms underlying the reported therapeutic effects. N-acetylcysteine (NAC, N-acetyl-L-cysteine) is an amino acid derivative containing a thiol group. It is a precursor of L-cysteine and glutathione. NAC is well absorbed and safe for the body at doses up to 300 mg per kg of body weight. Side effects are relatively rare. NAC is used as an mucolytic agent in adjunctive therapy of respiratory diseases causing the retention of secretions, as well as an antidote in the treatment of paracetamol poisoning. Moreover, NAC protects against the toxic effects of reactive oxygen species and their active metabolites. NAC is involved in free radical scavenging processes via several independent mechanisms, including a direct reduction of free radicals, providing substrates for oxidation-reduction reactions and activation of antioxidant enzymes. In the blood, NAC decreases the level of low density lipoprotein peroxidation. In various tissues, NAC may increase the levels of glutathione and cysteine and stimulate the superoxide dismutase action. NAC is used as a supplement in the treatment of various diseases associated with impaired exterior and intracellular oxidative balance. NAC increases the concentrations of amino acids and their derivatives, including cysteine, cystine, and glutathione. It also stabilizes the antioxidant status of the cells and the intercellular spaces. NAC changes the levels of transcription factors, modifying the transcription of selected genes and acting on the protein translation. It works on the activation of several enzymes in the cells and outside the cells. Based on the analysis of data from clinical trials it can be concluded, that an administration of NAC may be beneficial for these groups of patients, in whom the reversible accumulation and the negative action of free radicals was observed.


Subject(s)
Acetylcysteine/therapeutic use , Acetylcysteine/adverse effects , Acetylcysteine/metabolism , Acetylcysteine/pharmacology , Antioxidants/adverse effects , Antioxidants/metabolism , Antioxidants/pharmacology , Antioxidants/therapeutic use , Expectorants/adverse effects , Expectorants/metabolism , Expectorants/pharmacology , Expectorants/therapeutic use , Free Radicals/metabolism , Glutathione/metabolism , Humans , Superoxide Dismutase/metabolism
19.
World J Pediatr ; 13(1): 27-33, 2017 Feb.
Article in English | MEDLINE | ID: mdl-27457790

ABSTRACT

BACKGROUND: Available pediatric treatments for acute cough are limited by lack of demonstrated efficacy. The objective of this trial is to compare the effects of a polysaccharide-resin-honey based cough syrup, and carbocysteine syrups on nocturnal and daytime cough associated with childhood upper respiratory tract infections (URIs). METHODS: Using a single-blind randomization design, the study recruited children from 4 general pediatric community clinics. Participants included 150 children aged 2 to 5 years with an URI, nocturnal and daytime cough and illness duration of ≤7 days. To be eligible, children had to be free of medication on the day before presentation. A survey was administered to parents on 4 consecutive days beginning from the day of presentation in clinic. Children received the study preparation on the first evening and then 3 times per day for 3 further days. Main outcome measures were cough frequency, cough severity, bothersome nature of cough, and quality of sleep for both child and parent. RESULTS: Both preparations were well tolerated and cough improved over the study period. After one night and on all survey days, there was a significantly better result for polysaccharide-resin-honey (P<0.05) for all the main outcome measures. The trend of improvement over the 4 days was steeper for polysaccharide-resin-honey (P<0.05) with regards to all cough parameters. CONCLUSIONS: Both polysaccharide-resin-honey and carbocysteine cough syrups were well tolerated in children over 2 years of age. The polysaccharide-resin-honey syrup was associated with a more rapid and greater improvement in all clinical cough symptoms measured, beginning from the first night of therapy. Both nocturnal and daytime cough improved, as did sleep quality for both children and parents.


Subject(s)
Antitussive Agents/administration & dosage , Carbocysteine/therapeutic use , Cough/drug therapy , Expectorants/therapeutic use , Respiratory Tract Infections/drug therapy , Antitussive Agents/pharmacology , Child , Child, Preschool , Common Cold/drug therapy , Common Cold/physiopathology , Cough/physiopathology , Dextromethorphan/administration & dosage , Female , Follow-Up Studies , Humans , Israel , Male , Respiratory Tract Infections/diagnosis , Risk Assessment , Single-Blind Method , Sleep/drug effects , Treatment Outcome
20.
Zhongguo Zhong Xi Yi Jie He Za Zhi ; 37(4): 433-437, 2017 04.
Article in Chinese | MEDLINE | ID: mdl-30650501

ABSTRACT

Objective To analyze clinical features and medication laws of patients with human immunodeficiency virus (HIV) infection. Methods Real world data based on Hospital Information System (HIS) were collected from 17 grade 3 hospitals across China from Jan.2006 to Dec.2011. Data of case his- tory in HIV infectors included their general information, features of AIDS, medications of Western drugs and Chinese herbs during hospitalization. Results Data of 451 patients with HIV infection were collected. A total of 261 patients had clear age record. Their age ranged between 18 and 65 [ accounting for 90. 4% (236/ 261 ) ], with an average age of 36. The ratio of male to female was 2. 8:1. They were hospitalized first at De- partment of Lemology (66. 96%), followed by Department of Respiration (8. 2%). They were admitted to hospital first at clinics (79. 6%), and accepted from Emergency Department (20. 18%). Most of them were admitted to hospital due to infectious diseases. Of them, tuberculosis occupied the top (8.29%), followed by bacterial pneumonia (6. 44%). Totally 349 patients had complete medication record. A total of 399 kinds of Western drugs and 80 kinds of Chinese patent medicines were used. The frequency of using antimicrobial drugs was the top (11. 86%), and Compound Sulfamethoxazole was mostly used in 120 cases (2. 81%). Of 80 kinds of Chinese patent medicines, heat clearing and detoxifying herbs were most often used (19. 27%), followed by antipyretics (10. 30%), tonics (8. 97%), and expectorant (7. 31%). Antimicrobial drugs combined heat clearing and detoxifying herbs were the most often seen in clinics. The 451 HIV infec- tors had steady condition after treated by Western drugs and Chinese herbs. The improvement rate reached 51. 33%. Conclusion Antimicrobial drugs were most often used in HIV patients. Heat clearing and detoxif- ying herbs were most often used in HIV patients. Antimicrobial drugs combined heat clearing and detoxif- ying herbs were most often seen in clinics for HIV patients.


Subject(s)
Drugs, Chinese Herbal , HIV Infections , Nonprescription Drugs , Practice Patterns, Physicians' , Adult , Anti-Infective Agents/therapeutic use , Asian People , China , Drugs, Chinese Herbal/therapeutic use , Expectorants/therapeutic use , Female , HIV Infections/drug therapy , Humans , Male , Nonprescription Drugs/therapeutic use
SELECTION OF CITATIONS
SEARCH DETAIL