[ source ] Jingzhu Materia Medica" records:" cure the oral cavity disease, tooth disease, liver heat. This product is like a dog with tongue, square stems, purple, flower shape of Dracocephalum tanguticum Maxim, but slightly larger, white, fragrant. The base of the flower is sweet smell sucking.
[ ] B I Hu 's Pinyin name is a Ti 's n M M
[ alias ] white, white, Prunella sweet honey jar
[ source ]
Source: for medicinal Labiatae plants of Dracocephalum entire grass.
Latin animal mineral name: Dracocephalum hetetopyllum Benth.
Harvest and storage: 6-7 blossom when the harvest, remove the leaves withered stem, with the stick will stem flat, dry.
[ ] the original morphology of perennial herbs, high 10-30cm. Stems four ribs, dense backward short-haired, usually red to purple. Leaves opposite; basal petiole length 2.5-6cm; cauline leaf petiole shorter; cold ovate to long ovate, long 1.3-4cm, 8-23mm wide, apex obtuse or rounded, base cordate or truncate, margin with short eyelashes and shallowly crenate, pubescent or glabrescent below. Wheel umbrella inflorescence in distal part of stem, with 4-8 flowers; calyx shorter than bracts or calyx 1 / 2 long. Obovate-spatulate or oblanceolate, scanty by short and short eyelashes, each side margin with 3-8 thorn thorn 2-4mm long; calyx teeth, long 15-17mm, pale green, sparsely pubescent outside, labrum 3 carnassials nearly as large, triangular-ovate, apex spinescent, lower lip teeth 2, lanceolate, apex spinescent; corolla white, long 2.2-3.7cm, lip, outside densely white or yellowish white pubescent, apex retuse upper lip, cleft lip in 3, apex notched lobes; stamens 4, after a pair of long, anther locules 2, forked separately, slightly exserted, glabrous; pistil ovary 4 crack, style slender, stigmas 2 crack. Nutlets oblong, smooth. Flowering of 6-8 months, fr. 7-9.
[ ] habitat distribution
Ecological environment : in an elevation of 110-5100m mountain grassland \ semi-desert rocky dry areas, field road or river.
Resource distribution: located in Inner Mongolia, Shanxi, Ningxia, Gansu, Qinghai, Xinjiang, Sichuan, Tibet etc..
[ character ]
Character identification: stems are square, often curved or slightly curved, multiple broken, more complete, length 5 ~ 20cm, 2 ~ 4mm in diameter, surface yellowish green or slightly purple, deep section of purple, densely white pilose; hard and brittle, broken dust flying, yellow-white section, flat the center is relatively loose, white. Leaves opposite, broadly ovate or long ovate, length 1.3 ~ 4cm, apex obtuse; base cordate, margin crenate or serrate, pubescent; verticillaster into capitate or spicate, length 3 ~ 10cm: bracts obovate or oblanceolate, each side has 3 to 8 teeth, the tooth tip with Arista; calyx 2 lip, cleft lip cleft upper lip 3, 2; corolla 2 lip, pale yellow. After flowering the gatherers, visible a long ovate, dark brown seeds, length 3mm, width of about 1.2mm. Gas-specific aroma, flavour is weak puckery taste.
Microscopic identification: the transverse section of the stem, the epidermal cells of 1 columns, with the stratum corneum, and health and a multicellular non-glandular hairs. Cortical parenchyma cells of several layers, angle end with a plurality of layers of collenchyma cells. External phloem phloem ductile type, narrow, more compressed into a continuous band, cambium is not obvious. The xylem is a continuous band, a catheter with multiple single row radial arrangement, wall wood. Pith parenchyma cells round. The central common cavity.
Powder differential: Yellow green. The leaf stomata straight shaft type, the long axis of about 23 u m, a minor axis of about 13 m, bark, stomatal inequality. Non glandular hairs, from unicellular or multicellular, 80 ~ 260 m, some non glandular elongated curved, up to 450 M. Calyx undulate epidermal cells. The catheter is threaded and reticulate vessel, the diameter of 20 ~ 40 m. Bast fiber spindle, cell width, a septum, diameter of 10 ~ 25 m, gland scale of diameter of 50 ~ 100 m.
[ ] the whole grass chemical composition containing volatile oil 0.3% ~ 0.5%, oil refractive index N ( D ) ( 20) = 1.462. The whole plant after the pretest with flavone, coumarin, esters, phenols, organic acids, reducing substance reaction.
Pharmacological action [ ]
1: improving anoxia endurance of Dracocephalum can obviously improve the anoxia endurance, can prevent rats caused by hypoxia of the brain and myocardial ATP content decreased and myocardial glycogen content decreased, while maintaining the high normal concentrations, whether in static or motion can improve the body's endurance, even after adaptation to exercise animal, also can be in adaptation to hypoxia on the basis of further improving anoxia endurance. Dracocephalum can obviously improve hypoxia in rabbit arterial partial pressure of oxygen, increase the arteriovenous oxygen difference and arterial oxygen saturation, rats with reduced oxygen consumption. Above that of Dracocephalum, can promote the body to environmental hypoxia adaptation. To obtain by metabolic regulation to achieve. Higher animals in addition to the original cell level regulation of metabolism, and hormone and the regulation of the nervous system. From the regulation of metabolism was observed when seen, hypoxia and histamine elevated CA, Ach and 5-HT decreased, these changes on hypoxia organisms to produce adverse effects, and reduce the content of appearance of energetic materials, oxygen consumption increased, enhanced cell membrane permeability, pulmonary arterial hypertension, central nervous system physiology function, sleep, appetite suppression, analgesia is abate wait a series of adverse phenomenon, Dracocephalum can make these four neurotransmitter secretion levels returned to normal. In hormone research in Dracocephalum see, the hypoxic animals adrenal hormone secretion, in favor of oxygen uptake and stress reaction to proceed smoothly, thyroid hormone from low and returned to normal levels, from several organizational changes in CAMP content and respiratory enzyme activity change of Dracocephalum can also see these indicators in hypoxia returned to atmospheric pressure or close to atmospheric pressure level. Dracocephalum can reduce blood lactate and pyruvate ratio, decrease the degree of hypoxia, reduce and relieve Ganges RIver monkey hypoxia symptoms, reduce the incidence of acute mountain sickness and alleviate altitude reaction symptoms.
Antitussive, expectorant effects: 2 mice gavage acid alcohol extract 1.6g / kg, a cough ( cough induced by ammonia water spray ) and expectorant ( phenol red method), but without the antiasthmatic action ( guinea pig histamine spray method ).
3: bacteriostasis haemophilim influenzae, pneumococcus, Staphylococcus aureus, catarrhal coccus, influenza A and B streptococci and inhibit. Clinical application of increased leukocyte in patients after use, to normal, also have certain anti-inflammatory effect.
[ ]: toxicity of toxicity of Dracocephalum ( 50 LD ) is 9 ~ 9.9g / kg.
[ ] the taste of bitter cold; Xin;
[ ] liver functions; dispersing; cough. Primary hypertension; lymph node tuberculosis; lymphadenitis; goiter; bronchitis; oral ulcer
[ usage]: orally taken decoction, 6-12g; or into powder. External: moderate, fried mouthwash.
[ ] on the use of the clinical application of 1230 cases of chronic bronchitis patients, clinical observation, think there are better antitussive, expectorant effects. And plasma, renal function, urine routine examination and ECG analysis. Found in white blood cells in patients with elevated can make return to normal, there is certain anti-inflammatory effect: a minority of patients with electrocardiographic ST segment changes of RT wave, the other has no obvious change.
Excerpts from" Chinese Materia Medica" [ ]
http://chinese-herbal-medicines-directory.blogspot.com/
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