ABSTRACT
Psoriasis is an auto-immune skin disease, which is characterized by the excessive generation of plaques on the skin with typically a long-lasting red, itchy and scaly symptoms. Imiquimod, which has been used for the treatment of external genital warts, actinic keratosis, and superficial basal cell carcinoma, induced of psoriasis-like skin disorders with skin erythema and thickness in mice. In the present study, we tried to find the bioactive herbal extract against imiquimod-induced psoriasis-like skin disorder in mice. During the searching of the herbal extract with anti-psoriatic effect, the ethanolic extract of Cnidium officinale ameliorated imiquimodinduced psoriasis-like skin disorder in mice. The morphological evaluation, H&E staining and Psoriasis Area and Severity Index (PASI) score showed that ear and back thickness, and erythema induced by imiquimod were significantly reversed after the treatment of the cream of the ethanolic extract of C. officinale. The overexpressed myeloperoxidase (MPO) and keratin 6A levels were decreased by the treatment of C. officinale cream. Also, IFN-γ, c-fos and IκB-α mRNA levels, which are related to the progression of psoriasis, were reduced by C. officinale cream. Thus, the ethanolic extract of C. officinale ameliorated psoriasis-like skin disorder induced by imiquimod and might be the therapeutic agent for psoriasis.
Subject(s)
Animals , Mice , Carcinoma, Basal Cell , Cnidium , Condylomata Acuminata , Ear , Erythema , Ethanol , Keratin-6 , Keratosis, Actinic , Peroxidase , Psoriasis , RNA, Messenger , Skin Diseases , SkinABSTRACT
There is an increasing interest in phytoestrogens due to their potential medical usage in hormone replacement therapy (HRT). The present study was designed to investigate the in vitro effects of estrogen-like activities of two widespread coumarins, osthole and imperatorin, using the MCF-7 cell proliferation assay and their alkaline phosphatase (ALP) activities in osteoblasts Saos-2 cells. The two compounds were found to strongly stimulate the proliferation of MCF-7 cells. The estrogen receptor-regulated ERα, progesterone receptor (PR) and PS2 mRNA levels were increased by treatment with osthole and imperatorin. All these effects were significantly inhibited by the specific estrogen receptor antagonist ICI182, 780. Cell cycle analysis revealed that their proliferation stimulatory effect was associated with a marked increase in the number of MCF-7 cells in S phase, which was similar to that observed with estradiol. It was also observed that they significantly increased ALP activity, which was reversed by ICI182,780. These results suggested that osthole and imperatorin could stimulate osteoblastic activity by displaying estrogenic properties or through the ER pathway. In conclusion, osthole and imperatorin may represent new pharmacological tools for the treatment of osteoporosis.
Subject(s)
Humans , Alkaline Phosphatase , Genetics , Metabolism , Cell Line, Tumor , Cell Proliferation , Cnidium , Chemistry , Coumarins , Pharmacology , Drugs, Chinese Herbal , Pharmacology , Furocoumarins , Pharmacology , MCF-7 Cells , Osteoblasts , Cell Biology , Phytoestrogens , Pharmacology , Receptors, Estrogen , Genetics , MetabolismABSTRACT
This study is to study is to investigate the coumarins from Fruit of Cnidium monnieri and their cytotoxic activities. The constituents were separated by column chromatography, and their structures were elucidated by spectroscopic data analyses. The isolated compounds were evaluated for their cytoxic activities by MTT method. Eleven compounds were isolated and identified as osthole (1), bergaptan (2), xanthotoxol (3), xanthotoxin (4), imperatorin (5), isopimpinellin (6), osthenol (7), psoralen (8), 5,7-dimethoxycoumarin (9), oxypeucedaninhydrate (10), and swietenocoumarin F (11). Compounds 7, 9-11 were isolated from the Cnidium genus for the first time. Compounds 1,5,10 and 11 showed significant cytotoxic activities against L1210 cell lines at a concentration of 1 x 10(-5) mol x L(-1) with inhibitory rates of were 70.13, 63.10, 55.77, and 75.08% respectively.
Subject(s)
Animals , Mice , Cell Line, Tumor , Cell Proliferation , Cnidium , Chemistry , Toxicity , Coumarins , Chemistry , Toxicity , Drugs, Chinese Herbal , Chemistry , Toxicity , Fruit , Chemistry , Toxicity , Molecular StructureABSTRACT
Although the effects of the rice bran have recently been investigated, there is no information regarding platelet physiology available. However, it is well known that fermented natural plants have a beneficial effect on cardiovascular diseases. Therefore, this study was conducted to investigate whether fermented rice bran extract (FRBE) with several plants (Artemisia princeps, Angelica Gigantis Radix, Cnidium officinale, and Camellia sinensis) affected agonist-induced platelet aggregation, and if so, what the underlying mechanism of its activity was. We performed several experiments, including in vitro platelet aggregation, intracellular calcium concentration and adenosine triphosphate release. In addition, the activation of integrin alphaIIbbeta3 was determined using fibrinogen binding. Thrombus formation was also evaluated in vivo using an arterio-venous shunt model. The FRBE inhibited collagen-induced platelet aggregation in a concentration-dependent manner. FRBE significantly and dose dependently attenuated thrombus formation using rat arterio-venous shunt. FRBE suppressed the intracellular calcium mobilization in collagen-stimulated platelets. We also found that FRBE inhibited extracellular stimuli-responsive kinase 1/2, p38-mitogen-activated protein kinases and c-Jun N-terminal kinase phosphorylation. These results suggested that FRBE inhibited collagen-induced platelet aggregation, which was mediated by modulation of downstream signaling molecules. In conclusion, FRBE could be developed as a functional food against aberrant platelet activation-related cardiovascular diseases.
Subject(s)
Animals , Rats , Adenosine Triphosphate , Angelica , Blood Platelets , Calcium , Camellia , Cardiovascular Diseases , Cnidium , Collagen , Fibrinogen , Functional Food , JNK Mitogen-Activated Protein Kinases , Phosphorylation , Phosphotransferases , Physiology , Platelet Aggregation , Platelet Glycoprotein GPIIb-IIIa Complex , Protein Kinases , ThrombosisABSTRACT
The aim of this study was to investigate the inhibitory effect of Cnidium monnieri fruit (CM) extracts on pulmonary inflammation induced in mice by cigarette smoke condensate (CSC) and lipopolysaccharide (LPS). Pulmonary inflammation was induced by intratracheal instillation of LPS and CSC five times within 12 days. CM extract was administered orally at a dose of 50 or 200 mg·kg(-1). The number of inflammatory cells in the bronchoalveolar lavage fluid was counted using a fluorescence activated cell sorter. Inflammatory mediator levels were determined by enzyme-linked immunosorbent assay. The administration of LPS and CSC exacerbated airway hyper-responsiveness (AHR) and induced an accumulation of inflammatory cells and mediators, and led to histological changes. However, these responses are modulated by treatment with CM, and the treatment with CM extract produces similar or more extensive results than the treatment with cyclosporin A (CSA). CM extract may have an inhibitory effect on pulmonary inflammation related with chronic obstructive pulmonary disease.
Subject(s)
Animals , Female , Anti-Inflammatory Agents , Pharmacology , Therapeutic Uses , Bronchoalveolar Lavage Fluid , Cnidium , Fruit , Lipopolysaccharides , Mice, Inbred BALB C , Phytotherapy , Plant Extracts , Pharmacology , Therapeutic Uses , Pneumonia , Drug Therapy , Pulmonary Disease, Chronic Obstructive , Drug Therapy , Pathology , Smoke , Smoking , Tobacco ProductsABSTRACT
This study is to investigate the effect of osthol on osteoclasts' activity, bone resorption as well as apoptosis in vitro, and explore the mechanism of osthol in preventing osteoporosis. Osteoclasts were separated from long-limb bones of new born rabbits, cultured in 24-well plate with glass slices and bone slices, and treated by 1 x 10(-5) mol x L(-1) osthol. Osteoclasts were identified by observing live cells with phase contrast microscope, HE staining, TRAP staining and toluidine blue staining of bone resorption pits. The numbers of bone resorption pits were counted as well as the surface area of bone resorption on bone slice. Osteoclasts were stained with acridine orange to detect the cell apoptosis. The ratio of apoptotic osteoclasts was observed under fluorescence microscope. The gene expression of RANKL, OPG, TRAP and p-JNK1/2 protein expression were examined using real time PCR and Western blotting, respectively. Comparing with the control group without osthol, the rates of apoptotic osteoclasts increased obviously and the number and area of bone resorption pits decreased evidently with 1 x 10(-5) mol x L(-1) osthol. There is significant difference between control group and experiment group treated by 1 x 10(-5) mol x L(-1) osthol. Therefore, the osthol through RANK+RANKL/TRAF6/Mkk/JNK signal pathway inhibits the osteoclasts activity, enhances osteoclasts apoptotic and inhibits the bone resorption.
Subject(s)
Animals , Rabbits , Acid Phosphatase , Metabolism , Apoptosis , Bone Resorption , Cells, Cultured , Cnidium , Chemistry , Coumarins , Pharmacology , Gene Expression , Isoenzymes , Metabolism , Mitogen-Activated Protein Kinase 8 , Metabolism , Mitogen-Activated Protein Kinase 9 , Metabolism , Osteoclasts , Metabolism , Pathology , Osteoprotegerin , Metabolism , Phosphorylation , Plants, Medicinal , Chemistry , RANK Ligand , Metabolism , Seeds , Chemistry , Signal Transduction , Tartrate-Resistant Acid PhosphataseABSTRACT
This paper is to study the inhibitory effect of water soluble polymers--methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxypropyl cellulose (HPC-M), poloxamer (F68) and polyvidon (PVP) on osthole (OST) crystallization and investigate the impact of polymer concentration and viscosity on crystallization behavior. Also, UV spectrophotometry method was used to determine the drug concentration at different time point to draw the OST concentration-time curve. Results show that HPMC has the most significant inhibition effect on OST crystallization, and drug concentration level is 1.61 times higher than that in control solution within 8 h followed by PVP (1.54) and MC (1.45) respectively. The kinetics of OST recrystallization can be described using first-order reaction, and the crystallization rate constants obtained by analyzing the regression equation indicate that HPMC-60SH-4000 and HPMC-60SH-10000 can greatly influence OST crystal formation. The dissolution rate of drugs precipitated from water-soluble polymer solutions is faster compared with controls in pH 1.2 HCl and pH 6.8 phosphate buffers, which demonstrated that water-soluble polymers can not only change the behavior of drug crystallization but markedly improve the dissolution rate of water insoluble drugs.
Subject(s)
Cellulose , Chemistry , Cnidium , Chemistry , Coumarins , Chemistry , Crystallization , Hypromellose Derivatives , Kinetics , Methylcellulose , Chemistry , Plants, Medicinal , Chemistry , Poloxamer , Chemistry , Polymers , Chemistry , Povidone , Chemistry , Solubility , ViscosityABSTRACT
The paper is aimed to study the metabolic characteristics of osthol (Ost) in isolated hepatocytes of rat to identify which isoforms of CYP450 were responsible for Ost metabolism in vitro. The concentration of Ost in isolated hepatocytes incubation system was determined by HPLC-UV. The effects of incubation time, substrate concentration and hepatocytes amount on the metabolic characteristics of Ost were investigated. CYP2C8 inhibitor quercetin (Que), CYP2C9 inhibitor sulfaphenazole (Sul), CYP2D6 inhibitor yohimbine (Yoh), CYP3A4 inhibitor troleandomycin (Tro) and CYP450 inducer rifampicin (Rif) were used to investigate their effects on the metabolism of Ost. The metabolism of Ost in isolated rat hepatocytes showed an enzymatic kinetic characteristics. Rif induced Ost elimination in rat hepatocytes; Yoh, Sul, Que did not have effects on Ost metabolism in vitro. Between 0-200 micromol x L(-1), Tro inhibited Ost metabolism in a concentration-dependent manner. CYP3A4 is the enzyme metabolizing Ost in vitro; CYP2C8, CYP2C9 and CYP2D6 did not involve in Ost metabolism in rat hepatocytes.
Subject(s)
Animals , Male , Rats , Cells, Cultured , Cnidium , Chemistry , Coumarins , Metabolism , Cytochrome P-450 CYP2D6 Inhibitors , Cytochrome P-450 CYP3A , Cytochrome P-450 Enzyme Inhibitors , Cytochrome P-450 Enzyme System , Hepatocytes , Metabolism , Plants, Medicinal , Chemistry , Quercetin , Pharmacology , Rats, Sprague-Dawley , Rifampin , Pharmacology , Sulfaphenazole , Pharmacology , Troleandomycin , Pharmacology , Yohimbine , PharmacologyABSTRACT
To establish the method of HPLC-fingerprint analysis for the quality control of Cnidium monnieri L. Cuss., and identify its active constituents by HPLC-MS, 35 batches of samples were analyzed on a Shimadzu C18 column with a gradient of acetonitrile and 0.1% aqueous aceticacid at a flow rate of 1.0 mL x min(-1) and detected at 245 nm and 322 nm. Furthermore, the typical samples were detected by HPLC-DAD-MS under negative ion mode. 35 batches of Cnidium monnieri L. Cuss. samples were classified into four types based on the results of similarity analysis. According to the comparison of the t(R), MS data and UV maximum absorbance (lambda(max)) values with the standards, 8, 7, 4 and 2 coumarins components were identified in four types of Cnidium monnieri L. Cuss. extracts, separately. The method is repeatable and reliable, and it is capable of effectively controlling the quality of Cnidium monnieri L.
Subject(s)
Chromatography, High Pressure Liquid , Methods , Cnidium , Chemistry , Coumarins , Ecosystem , Plants, Medicinal , Chemistry , Quality Control , Reproducibility of Results , Seeds , Chemistry , Sensitivity and Specificity , Spectrometry, Mass, Electrospray Ionization , Spectrophotometry, UltravioletABSTRACT
<p><b>OBJECTIVE</b>To develop an RP-HPLC method for simultaneous determination of 5 constituents in Fructus Cnidii.</p><p><b>METHOD</b>Analysis was performed on an Alltech C18 (4.6 mm x 250 mm, 5 microm) column. The mobile phases were acetonitrile water and acetic acid with gradient elution. The flow rate was 1 mL x min(-1). The monitoring wavelength was 325 nm and 245 nm. The column temperature was 40 degrees C.</p><p><b>RESULT</b>The linear response ranges were 1-20 microg x mL(-1) (r = 0.999 9) for xanthotoxin, 1-20 microg x mL(-1) (r = 0.999 9) for isopimpinellin, 11-20 microg x mL(-1) (r = 0.999 8) for bergapten, 100-1 200 microg x mL(-1) (r = 0.999 7) for imperatorin, 100-2 000 microg x mL(-1) (r = 0.999 9) for osthole. The average recoveries were all above 95%.</p><p><b>CONCLUSION</b>The method is simple, sensitive and accurate with good reproducibility.</p>
Subject(s)
Chromatography, High Pressure Liquid , Methods , Cnidium , Chemistry , Coumarins , Fruit , Chemistry , Furocoumarins , Methoxsalen , Plants, Medicinal , Chemistry , Reproducibility of ResultsABSTRACT
The anti-osteoporosis activity and mechanism of traditional Chinese medicine and medicinal plants were discussed. It is hoped that we can provide some reference for future drug development and introduction of traditional Chinese medicine to world.
Subject(s)
Animals , Humans , Cell Proliferation , Cnidium , Chemistry , Drugs, Chinese Herbal , Pharmacology , Therapeutic Uses , Epimedium , Chemistry , Medicine, Chinese Traditional , Osteoblasts , Pathology , Osteoporosis , Pathology , Phytotherapy , Plants, Medicinal , Chemistry , Polypodiaceae , ChemistryABSTRACT
<p><b>OBJECTIVE</b>To analyze the chemical constituents of supercritical carbon dioxide extraction products from Cnidium monieri.</p><p><b>METHOD</b>Four-factor and three-level orthogonal experimental design was used to optimize the SFE conditions as guided by the content of total coumarins in the extract. The chemical constituents were separated and identified by recrystalization.</p><p><b>RESULT</b>Optimum extraction process was established: 25 MPa as extraction pressure, 50 degrees C as extraction temperature, 6.5 MPa as separation pressure and 60 degrees C as separation temperature.</p><p><b>CONCLUSION</b>Changes in extraction pressure, temperature, time, pulverized degree and separation pressure affect the extracting results remarkably. The two kinds of chemical constituents were separated by recrystallization from C. monieri and identified by the methods of UV, IR, MS, NMR.</p>
Subject(s)
Chromatography, Supercritical Fluid , Cnidium , Chemistry , Coumarins , Chemistry , Fruit , Chemistry , Furocoumarins , Chemistry , Plants, Medicinal , ChemistryABSTRACT
The main pharmacological constituents of Chinese traditional medicine herb Cnidium monnieri are coumarin compounds and volatile oil. In addition, it contains monoterpene polyols, glucides, as well as recently discovered sesquiterpene components. In recent years, rather active investigations of its anti-tumor were performed at home and abroad. C. monnieri possesses multi-aspect and comprehensive anti-tumor functions, involving directly tumor-inhibitory activity, anti-mutagenicity, reversing multi-drug tolerance of tumor, as well as improving immune functions and so on. In this review, chemical constituents, anti-tumor activities and relevant investigations of Fructus Cnidii were summarized recent decade.
Subject(s)
Antineoplastic Agents, Phytogenic , Pharmacology , Cnidium , Chemistry , Coumarins , Chemistry , Pharmacology , Drugs, Chinese Herbal , Pharmacology , Furocoumarins , Chemistry , Pharmacology , Molecular StructureABSTRACT
<p><b>OBJECTIVE</b>Synthetical evaluation of promoting effect of some kinds of transdermal enhancers was carried through.</p><p><b>METHOD</b>Diclofenac sodium was used as model, and azone and l-menthol and synthetic borneol and olieic acid and essential oil from Cnidium monnieri were used as transdermal enhancers. Transdermal absorption experimentation of diclofenac sodium on the device of penetrating skins in vitro was done. Cumulation of permeation amount and penetrating rates and steady fluxes and lag times were observed, and grey relational cluster method was used to evaluate the promoting effect of some kinds of transdermal enhancers.</p><p><b>RESULT</b>As for promoting effect on diclofenac sodium, azone and l-menthol were the best, and synthetic borneol and olieic acid ranked behind.</p><p><b>CONCLUSION</b>Grey relational cluster method can evaluate promoting effect objectively and fairly.</p>
Subject(s)
Animals , Male , Rabbits , Administration, Cutaneous , Azepines , Pharmacology , Camphanes , Pharmacology , Cluster Analysis , Cnidium , Chemistry , Diclofenac , Pharmacokinetics , Menthol , Pharmacology , Oils, Volatile , Pharmacology , Skin AbsorptionABSTRACT
<p><b>AIM</b>To investigate the pharmacokinetics of osthole in rabbits and obtain the main pharmacokinetic parameters.</p><p><b>METHODS</b>A simple high-performance liquid chromatography (HPLC) method was developed to study the pharmacokinetics of osthole in rabbits by joining an internal standard (paeonal). Methanol-water (80:20) was used as the mobile phase. According to the 3P87 pharmacokinetic program, the main parameters were calculated.</p><p><b>RESULTS</b>The osthole pharmacokinetics conforms to a two compartment open model after i.v. administration, T1/2 alpha = 5.81 min, T1/2 beta = 42.2 min, K21 = 0.036 0.min-1, K12 = 0.045 0.min-1, K10 = 0.054 0.min-1, AUC = 235 mg.min.L-1, CLs = 0.043 0 L.min-1.kg-1, Vc = 0.780 L.kg-1.</p><p><b>CONCLUSION</b>The pharmacokinetics of osthole after i.v. administration showed a rapid distribution and elimination process in rabbits.</p>
Subject(s)
Animals , Male , Rabbits , Area Under Curve , Calcium Channel Blockers , Blood , Pharmacokinetics , Chromatography, High Pressure Liquid , Cnidium , Chemistry , Coumarins , Blood , Pharmacokinetics , Fruit , Chemistry , Metabolic Clearance Rate , Plants, Medicinal , Chemistry , Tissue DistributionABSTRACT
<p><b>OBJECTIVE</b>To study the antiinflammatory effect of a compound TCM (Traditional Chinese Medicine) agent on animal models. The agent contains ant extractive and a blent of three herbal products, herba epimedii, fructus cnidii, and fructus lycii.</p><p><b>METHOD</b>Three animal models to induce experimental inflammation in rats, including carrageenin--induced paw edema, cotton-ball granuloma and adjuvant induced arthritis, were chosen to study the antiinflammatory effect of the TCM agent.</p><p><b>RESULT</b>The TCM agent showed a marked inhibitory effect on edema induced by all three types of inflammation in rats, the inhibitory rate of the TCM agent at the dose of 0.20, 0.40 and 0.80 g.kg-1 in granuloma model bing over 25% at 1 hour post oral administration, and being 23.8%, 22.7%, 39.7% at 6 hour. In addition, the TCM agent also showed a significant preventive as well as therapeutic effect on adjuvant induced arthritis in rats, and improved the pathological changes of the animal joints with the induced arthritis.</p><p><b>CONCLUSION</b>TCM agent has significant antiinflammatory effects on the three above mentioned animal models.</p>
Subject(s)
Animals , Male , Rats , Anti-Inflammatory Agents, Non-Steroidal , Therapeutic Uses , Ants , Arthritis , Drug Therapy , Capsules , Cnidium , Chemistry , Drug Combinations , Drugs, Chinese Herbal , Therapeutic Uses , Edema , Drug Therapy , Epimedium , Chemistry , Granuloma, Foreign-Body , Drug Therapy , Lycium , Chemistry , Materia Medica , Therapeutic Uses , Plants, Medicinal , Chemistry , Rats, WistarABSTRACT
<p><b>AIM</b>To study the protective effect and mechanism of osthol on learning and memory impairment of mice with acute senile model induced by AlCl3.</p><p><b>METHODS</b>After s.c. AlCl3 60 mg.kg-1 for 7 d and i.p. osthol 15 and 7.5 mg.kg-1 for 12 d, using step-through test and step-down test, the effect of osthol on learning and memory was observed and the glutathione peroxidase (GSH-PX) activities in blood and superoxide dismutase (SOD) activities in plasma and cerebrum were measured.</p><p><b>RESULTS</b>Osthol 15 and 7.5 mg.kg-1 significantly improved the capability of memory and enhanced the activities of GSH-PX and SOD in AlCl3 treated mice.</p><p><b>CONCLUSION</b>Osthol shows protective effect on brain memory impairment of mice in acute senile model induced by AlCl3. Perhaps the mechanism is involved in enhancing the activities of GSH-PX and SOD, clearing away the free radical, protecting the brain neuron from the harm of lipoperoxide.</p>
Subject(s)
Animals , Female , Male , Mice , Acute-Phase Reaction , Aging , Metabolism , Aluminum Compounds , Pharmacology , Avoidance Learning , Brain , Chlorides , Pharmacology , Cnidium , Chemistry , Coumarins , Pharmacology , Therapeutic Uses , Glutathione Peroxidase , Blood , Memory Disorders , Plants, Medicinal , Chemistry , Random Allocation , Superoxide Dismutase , MetabolismABSTRACT
<p><b>AIM</b>To provide more molecular evidences for species relationship between Chuanxiong (Ligusticum chuanxiong Hort.) from China and Japanese Chuanxiong (Senkyu in Japanese) (Cnidium officinale Makino).</p><p><b>METHODS</b>To sequence such two genes as internal transcribed spacer (ITS) from nuclear rDNA and maturase for lysine (matK) in tRNA(lys) (UUU) intron from chloroplast DNA of both Ligusticum chuanxiong and Cnidium officinale using PCR direct sequencing and to analyze the sequence variation of two genes between these two species.</p><p><b>RESULTS</b>The matK gene sequence of Ligusticum chuanxiong and Cnidium officinale is 1268 bp in length, coding 422 amino acids of maturase protein. ITS gene sequence 699 bp, consisting of 54 bp of 18S rRNA-3', 215 bp of ITS1, 162 bp of 5.8S rRNA, 222 bp of ITS2, 46 bp of 26S rRNA-5'. Multiple sequence alignment shows that the sequence of two genes between dried crude drug and fresh voucher material of Ligusticum chuanxiong and Cnidium officinale, there is 1 variable site (T-->C) in matK (upstream at 595 nt) and ITS (ITS1 at 54 nt) between Ligusticum chuanxiong and Cnidium officinale.</p><p><b>CONCLUSION</b>Based on homology analysis of two genes plastid matK and nuclear ITS, the origin of Chuanxiong from China and Japan ought to be identical, the scientific name Cnidium officinale of Japanese Chuanxiong should be changed to Ligusticum chuanxiong.</p>
Subject(s)
Amino Acid Sequence , Base Sequence , China , Cnidium , Genetics , DNA, Plant , DNA, Ribosomal Spacer , Genetics , Endoribonucleases , Genetics , Japan , Ligusticum , Genetics , Molecular Sequence Data , Nucleotidyltransferases , Genetics , Phylogeny , RNA, Ribosomal, 18S , Genetics , Sequence Analysis , Sequence Homology , Terminology as TopicABSTRACT
There have been a few cases of occupational allergy caused by herb materials. In this study, we report a case of occupational asthma and rhinitis sensitized by six kinds of herb materials-Ostericum (Kangwhal), Angelica (Danggui), Cnidium (Chunkung), Pinellia (Banha), Zingerber (Kunkang) and Discoreae (Sanyak) in a pharmacist working at a pharmacy. The patient had shown negative responses to 80 common inhalant and food allergens, but strong positive responses to six herb material extracts, Kangwhal, Danggui, Chunkung, Banha, Kunkang and Sanyak, were noted on skin-prick test. Bronchoprovocation test showed a dual asthmatic response to Danggui extract. Serum specific IgE antibodies to Chunkung, Banha and Sanyak were detected by enzyme-linked immunosorbent assay (ELISA) with no specific IgE binding to Kangwhal, Danggui and Kunkang extracts. In order to further characterize the allergic components of these three extracts, sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and electroblotting studies were performed. One IgE binding components (60 kDa) were detected within Chunkung extract, two (10, 25 kDa) in Banha and four (33, 34, 65, 98 kDa) in Sanyak. It is suggested that Chunkung, Banha and Sanyak may induce IgE-mediated bronchoconstriction in an exposed worker. Further studies are needed to investigate the pathogenic mechanisms induced by Kangwhal, Danggui and Kunkang.