[Interspecific allelopathic effect of different organs' aqueous extracts of Betula platyphylla and Larix olgensis on their seed germination and seedling growth].

In this paper, the Betula platyphylla root-, branch-, and foliage aqueous extracts and Larix olgensis root-, branch-, foliage-, and bark aqueous extracts over a range of concentrations 5.0, 12.5, 25.

[Soil nutrient status of pure birch and larch plantations based on their seedlings bioassay].

One-year-old birch (Betula platyphylla) and larch (Larix olgensis) seedlings were respectively planted in pots with the soils taken from 35-year-old pure birch and larch plantations, and the seedlings growth, biomass increment, foliar nutrient content, and soil nutrient status were monitored, aimed to evaluate the fertility levels of the two soils and the possible interspecific interaction in mixed larch-birch forest. Birch soil had significantly higher contents of total N and available N than larch soil, while larch soil had significantly higher contents of total P, available P, and total K than birch soil (P < 0.05).

[Clinical features of endotracheal/endobronchial metastases: analysis of 62 cases].

Objective: To describe the clinical presentations, diagnosis and treatment of endotracheal/endobronchial metastases (EEM).

Methods: Retrospective and follow-up analyses were conducted for 62 cases of bronchoscopically confirmed EEM. Clinical staging, location in the tracheobronchial tree, the number of lesions, treatment and prognosis were analyzed.

[Restenosis and its management after metallic stents implantation in benign tracheal and main bronchial stenosis].

Objective: To observe the occurrence of restenosis after metallic stents implantation in benign tracheal and main bronchial stenosis, and to evaluate the therapeutic effects of balloon dilatation, cryotherapy and electrocautery.

Methods: Thirty patients with benign tracheal stenosis and 35 patients with main bronchial stenosis caused by tuberculosis were treated with metallic stents implantation and a follow-up was carried out to observe the occurrence of restenosis. Combined balloon dilatation, cryotherapy and electrocautery were used to manage the restenosis.

[The experimental study on the inhibitory effect of tripterine on airway inflammation in asthmatic mice].

Objective: To investigate the effect and mechanism of tripterine on airway inflammation in asthmatic mice.

Methods: 30 BALB/c mice were randomly divided into a control group, an asthmatic group (ovalbumin-sensitized) and a tripterine (1 mg/kg, introperitoneally)-treated group. Pathologic changes in lung tissues, number of eosinophils in bronchoalveolar lavage fluid (BALF) and expression of stem cell factor (SCF) protein in lung were observed.

[Pulmonary epithelioid hemangioendothelioma. a case report and review of the literature].

Objective: To describe the clinical features of pulmonary epithelioid hemangioendothelioma.

Methods: With a case report and review of the related literatures, the etiology, clinical manifestations, diagnosis, differential diagnosis, management and prognosis of pulmonary epithelioid hemangioendothelioma were described.

Results: The etiology of this rare disease remains unknown.