Percutaneous Endoscopic Transforaminal Discectomy for the Treatment of Lumbar Disc Herniation with Different Migration Levels: A Retrospective Study.

Objective: To investigate the surgical method and efficacy of percutaneous endoscopic transforaminal discectomy (PETD) for the treatment of lumbar disc herniation (LDH) with different migration levels by introducing the strategy of foramenoplasty with the "distal nucleus pulposus as the core".

Methods: Clinical data of LDH patients who underwent single-segment PETD surgery were retrospectively analyzed. Three groups were categorized according to the degree of nucleus pulposus migration in the sagittal position: no migration group, mild migration group, and high migration group.

Clinical analysis of systemic chemotherapy combined with microwave ablation in the treatment of lung cancer.

Objective: To explore the therapeutic effect of systemic administration combined with microwave ablation (MWA) under computed tomography (CT) and fiberoptic bronchoscope for treating lung cancer.

Methods: Sixty-six patients with advanced lung cancer admitted to our hospital from February 2019 to February 2020 were collected and divided into control group and experimental group with 33 patients in each group. The control group was treated with systemic administration, and the experimental group was treated with systemic administration combined with MWA under CT and fiberoptic bronchoscope.

Smoking alters the evolutionary trajectory of non-small cell lung cancer.

Smoking is the biggest risk factor for lung cancer. Smokers have a much higher chance of developing lung tumors with a worse survival rate; however, non-smokers also develop lung tumors. A number of questions remain including the underlying difference between smoker and non-smoker lung cancer patients and the involvement of genetic and epigenetic processes in tumor development.

Treatment of open chest rib fractures with the matrix rib internal fixation system: A case report.

Rationale: Rib fractures are common among patients with blunt chest wall trauma and often represent life-altering injuries.

Patient Concerns: A 31-year-old woman presented with right chest trauma, with pain and bleeding as a result of a traffic accident 1 hour previously.

Diagnoses: Chest computed tomography showed open chest trauma, multiple rib fractures, flail chest, hemopneumothorax, and lung contusion on the right side.

Optimization of the extraction conditions and quantification by RP-LC analysis of three alkaloids in Zanthoxylum nitidum roots.

Context: A classic traditional Chinese medicine, Zanthoxylum nitidum (Roxb.) DC. widely used in China, exhibits anticancer, anti-inflammatory and antianalgesic activities.

[Characteristic chromatographic profile of Zanthoxylum niridum].

Objective: To establish the characteristic fingerprint of Zanthoxylum nitidum by HPLC, and to provide a reference for the quality control of Z. nitidum in the market.

Method: The established HPLC characteristic fingerprint of Z.

[Study on chromatography-efficacy relation of Zanthoxylum nitidum on gastric cancer cells].

Objective: To develop a method for elucidating " chromatography-efficacy" relation of the extract of Zanthoxylum nitidum on the gastric cancer cells.

Method: After obtaining the tumor inhibition rate and fingerprint peak data through MTT and HPLC, "chromatography-efficacy" relation was established by an appropriate statistical method.

Result: The gastric cancer "chromatography-efficacy" relation of Z.

[Study on the optimal extracion craft of Xiaochuang gel by central composite design-response surface methodology].

Objective: To optimize the extraction craft of Xiaochuang gel by central composite design-response surface methodology.

Methods: The main influential factors of extraction effect included the quantity of ethanol, the concentration of ethanol and the extraction time. The conditions of the extraction were evaluated by the yield of the extracts and the total content of rheum emodin and chrysophanol.

Characterization of symbiotic and endophytic bacteria isolated from root nodules of herbaceous legumes grown in Qinghai-Tibet plateau and in other zones of China.

Qinghai-Tibet plateau is the highest place in the world and the environment in that plateau is hard for animals and plants, with low temperature, low concentration of oxygen and high solar radiation. In this study, 61 root nodule isolates from Vicia, Oxytropis, Medicago, Melilotus and Onobrychis species grown in Qinghai-Tibet plateau and in loess plateau were comparatively characterized. Based upon the results of numerical taxonomy, ARDRA, AFLP, DNA-DNA hybridization and 16S rDNA sequencing, the isolates were classified as Rhizobium leguminosarum, Sinorhizobium meliloti, Sinorhizobium fredii, Mesorhizobium sp.

Population genetic structure of Sinorhizobium meliloti and S. medicae isolated from nodules of Medicago spp. in Mexico.

We studied the genetic structure of 176 bacterial isolates from nodules of Medicago sativa, M. lupulina and M. polymorpha in fifteen sites distributed in three localities in Mexico.

Mesorhizobium septentrionale sp. nov. and Mesorhizobium temperatum sp. nov., isolated from Astragalus adsurgens growing in the northern regions of China.

Ninety-five rhizobial strains isolated from Astragalus adsurgens growing in the northern regions of China were classified into three main groups, candidate species I, II and III, based on a polyphasic approach. Comparative analysis of full-length 16S rRNA gene sequences of representative strains showed that candidate species I and II were Mesorhizobium, while candidate species III, which consisted of non-nodulating strains, was closely related to Agrobacterium tumefaciens. The phylogenetic relationships of the three candidate species and some related strains were also confirmed by the sequencing of glnA genes, which were used as an alternative chromosomal marker.

Diverse Mesorhizobium plurifarium populations native to Mexican soils.

Forty-six Mesorhizobium strains associated with the leguminous plants Leucaena leucocephala and Sesbania herbacea in an uncultivated Mexican field were characterized using a polyphasic approach. The strains were identified as Mesorhizobium plurifarium based upon the close relationships with the reference strains for this species in PCR-based restriction fragment length polymorphism analyses, sequencing of 16S rRNA genes, multilocus enzyme electrophoresis, and DNA-DNA hybridization. Although the strains isolated from both plants formed the same group in multilocus enzyme electrophoresis and cross-nodulations were observed in the laboratory, different electrophoretic types were obtained from the two plants grown in natural soils, indicating the existence of a preferable association between the plants and the rhizobia.

Characterization of rhizobia that nodulate legume species of the genus Lespedeza and description of Bradyrhizobium yuanmingense sp. nov.

Legume species belonging to the genus Lespedeza are annual or perennial herb or shrub plants that grow in the northern hemisphere. They are known for the formation of root nodules, but little information is available about their microsymbionts. In this study, 58 root-nodule isolates from Lespedeza spp.