Humans ; Nasal Cavity ; pathology ; Nasal Obstruction ; diagnosis ; Nasal Polyps ; diagnosis ; Turbinates

How to get functional gene from uncultured-microbiology is the hotspot content of microbial ecology. What the most important is how to obtain the pure and integrated genomic DNA. An efficient, nonselective extraction method to gain chromosomal DNA from eight kinds of bacteria was introduced. Amount DNA released by hot-detergent gave the highest DNA yields from different G + and G- bacteria. Running 20 hours by PFGE mode, the size of total DNA is over 23kb. The pure DNA could be digested by Hind Ⅲ and used in PCR. The total environmental DNA also can be extracted from soil by the same method. As a result it showed a new way for the environmental DNA extraction.

Methods for studying the population diversity of microorganism in activated sludge usually require enrichment of bacterial genome.The efficient information on microbial species composition provided and shifted in diversity revealed are dependent on the effective DNA recovery technique.The method was based on washing by alkaline phosphate buffer and digestion with extended heating of the activated sludge suspension in the presence of lysozyme and freeze-thawing in high-salt-SDS buffer.The extraction was tested for four activated sludge differing in places and dates.The DNA fragment from all sludge was integrity.DNA yields ranged from 105 to 823 ?g/g sludge and were of sufficient purity for PCR-based 16S ribosomal DNA analysis and restriction digested.In general,all methods produced DNA pure were not enough for PCR amplification and libraries construction.As basis of experimental goals,the study provides an appropriate extraction method of microbial DNA in sludge.

Plant bioreactor called mocular farming has enormous potential to produce recombinant protein infinitely. Products expressed in plants has nature physico-chemical property and bioactivity. Plant bioreactor could be an safe, economic and convenient production system which has been widely applied in industries and agriculture, especially in the life science and pharmaceutical industry. The application of recombinant transgenic plant in the production of vaccines, antibodies and pharmaceutical proteins has become a hot point in the plant genetic engineering both at home and broad. However, there are some limiting factors of application such as yield, downstream processing and so on. The advantages and research progress for the mocular farming of pharmaceutical proteins recent three years was discussed, focusing on the existing problems and new strategies in this area.

In recent years, the incidence and mortality rate of invasive fungal infection have increased dramatically, and it is of great significance to develop novel antifungal agents with new chemical structure and new mode of action. In this review, novel antifungal lead compounds reported from 2007 to 2009 are reviewed. Moreover, their chemical structures, antifungal activities and structure-activity relationships have been summarized, which can provide useful information for future study of antifungal agents.
Antifungal Agents ; chemical synthesis ; chemistry ; pharmacology ; therapeutic use ; Fungi ; drug effects ; Heterocyclic Compounds ; chemical synthesis ; chemistry ; pharmacology ; Humans ; Lipopeptides ; chemistry ; pharmacology ; therapeutic use ; Molecular Structure ; Mycoses ; drug therapy ; Nitriles ; chemistry ; pharmacology ; therapeutic use ; Plant Extracts ; chemical synthesis ; chemistry ; isolation & purification ; pharmacology ; Plants, Medicinal ; chemistry ; Pyridines ; chemistry ; pharmacology ; therapeutic use ; Quinazolines ; chemistry ; pharmacology ; therapeutic use ; Quinones ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship ; Thiazoles ; chemistry ; pharmacology ; therapeutic use ; Triazoles ; chemistry ; pharmacology ; therapeutic use

Objective To investigate the efficacy of the bioactive artificial vertebrae of a nano- hydroapatite crystals and polyamide 66 composite(n-HA/PA66)to restore the height and architecture of thoracolumbar burst fracture.Methods From December 2003 to February 2006,38 patients(29 males and 9 females)with a mean age of 35.6 years(17-63 years)were treated surgically through anterior ap- proach for decompression and implanted with the bioactive artificial vertebrae of n-HA/PA66 composite to reconstruct the structure of the thoracolumbar burst fractured vertebra.Results All the patients were successfuly followed-up for an average of 8 months,ranging from 6 to 21 months.The bioaetive artificial vertebrac of n-HA/PA66 composite were fused with the receptor bone 3-4 months after operation.The neu- rological function of the patients was restored partially or completely.The thoracolumbar spine was stable during physical examination and the height of thoraeolumbar burst fractured vertebrae that had been restored did not changa during the follow-up.Conclusions Our results show the bioaetive artificial vertebrae of n-HA/PA66 can restore the height and structure of thoracolumbar burst fractured vertebrae and reconstruct the structure of the tboraeolumbar vertebrae effectively,indicating that the bioaetive artificial vertebrae of n- HA/PA66 can be used extensively in clinical spinal surgery.

OBJECTIVETo determine the consistence of the parameters related to type I thyroplasty measured by laryngeal specimens and CT scan.

METHODSThe related parameters of 50 laryngeal specimens (unilateral) obtained following total laryngectomy were measured postoperative immediately, and compared with those measured by spiral CT scan with multiple plain reconstructive (MPR) technique preoperatively. Comparative results were analyzed to evaluate the statistical significance between these two methods.

RESULTSThere were no significant statistical differences among the 6 parameters between two methods (P > 0.05), and the results (x +/- s) measured by CT scan and laryngeal specimens showed that the length of the thyroid notch to the inferior thyroid border were (20.7 +/- 1.7) mm and (20.6 +/- 1.7) mm; the length of the vocal cord were (17.3 +/- 1.8) mm and (17.3 +/- 1.8) mm; the length of the oblique line were (28.6 +/- 3.2) mm and (29.1 +/- 2.7) mm; the length of the presumptive horizontal line were (26.2 +/- 2.0) mm and (26.2 +/- 2.0) mm; the endolaryngeal vertical length of the anterior of the vocal cord to the presumptive horizontal line were (4.5 +/- 0.6) mm and (4.5 +/- 0.7) mm; the endolaryngeal vertical length of the vocal process to the presumptive horizontal line were (10.8 +/- 1.1) mm and (10.9 +/- 1.1) mm, respectively. As a result, the endolaryngeal anterior and posterior width of the wedge inserted in the thyroid cartilage were 4 - 5 mm and 8 - 9 mm respectively.

CONCLUSIONSMPR technique of spiral CT scan is able to design the size of the window and the prosthesis of type I thyroplasty preoperatively, which was testified to be a precise and reliable method to measure the larynx.

Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Laryngectomy ; Larynx ; diagnostic imaging ; pathology ; Male ; Middle Aged ; Postoperative Period ; Thyroid Cartilage ; diagnostic imaging ; pathology ; Tomography, X-Ray Computed ; Vocal Cord Paralysis

The aim of study was to explore the influence of the number of megakaryocytes in bone marrow smear and trephine biopsy on clinical outcome of idiopathic thrombocytopenic purpura (ITP). The clinical outcome of 115 patients with ITP was compared by different clinical subtype, number of blood platelet, number of megakaryocyte in bone marrow smear and trephine biopsy. The results showed that: (1) the clinical outcome of acute ITP was better than that of chronic ITP, the short clinical outcome of acute ITP and chronic ITP were 86.6% vs 60.4% respectively (p < 0.01), the long clinical outcome of them were 82.5% vs 68.9% respectively (p < 0.05); (2) different number of blood platelet at occurrence of diseases had no obviously influence on clinical outcome of patients with ITP; (3) all cases were subgrouped according to number of megakaryocyte in bone marrow smear, the number of megakaryocyte in bone marrow smear less than 7/4.5 cm(2) was defined as group I, the number of megakaryocyte between 7/4.5 cm(2) to 35/4.5 cm(2) was defined as group II, and the number of megakaryocyte in bone marrow smear greater than 35/4.5 cm(2) was defined as group III. The effective rates of 3 groups in short term treatment were 53.3%, 73.8% and 86.2% respectively, and there were statistical difference between these 3 groups (p < 0.01), the effective rates of these 3 groups in long term treatment were 42.8%, 84.6% and 85.5% respectively, and there was no statistical different between group II and group III (p > 0.05), but both had statistical difference, as compared with group I (p < 0.01). (4) all cases were subgrouped by the number of megakaryocyte in trephine biopsy on time of disease occurrence, the number of megakaryocyte in bone marrow smear less than 8/mm(2) was defined as group I, the number of megakaryocyte between 8/mm(2) to 15/mm(2) was defined as group II, the number of megakaryocyte greater than 15/mm(2) was defined as group III. The effective rate of these 3 groups in short term treatment were 53.8%, 85.0% and 90.3% respectively, group II and III had no statistical difference each other (p > 0.05), but both groups had statistical difference as compared with group I (p < 0.01). Effective rate of these 3 groups in long term treatment were 33.3%, 63.1% and 87.9% respectively, and there were statistical difference between them (p < 0.01). (5) the number of blood platelet at time of disease occurrence was not related to number of megakaryocyte in bone marrow smear and in trephine biopsy section(r = 0.31, p > 0.05; r = 0.41, p > 0.05). The number of megakaryocyte in bone marrow smear had positive correlation to that in trephine biopsy slides (r = 0.52, p < 0.01). In case to use single factor Logistic regression, the results showed that number of megakaryocyte in bone marrow smear and trephine biopsy had obvious influence on long term treatment of ITP. It is concluded that the number of megakaryocyte in trephine biopsy can be used as a available supplement method for bone smear, and can forecast the therapeutic effect of patients with ITP.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Bone Marrow Cells ; cytology ; pathology ; Cell Count ; Child ; Female ; Humans ; Male ; Megakaryocytes ; cytology ; pathology ; Middle Aged ; Purpura, Thrombocytopenic, Idiopathic ; diagnosis ; Young Adult

ObjectiveTo study the quality control methods for 99Tcm-TRODAT-1 kit and injection.MethodsThe appearance,pH,contents of the bases,the labeling yield,asepsis and bacterial endotoxins of 99Tcm-TRODAT-1 kits from three different batches were examined.The kit stability was estimated under different conditions.The transparence,pH,radiochemical purity,half-life,asepsis and bacterial endotoxins of 99Tcm-TRODAT-1 injection were tested.ResultsThe 99Tcm-TRODAT-1 kit and injection were both achromous and transparent,with pH values being 5.9 ± 0.1 and 5.5 - 7.0 respectively.The contents of stannous chloride and TRODAT-1 were stable.The labeling yield of the kit and the radiochemical purity of the injection were both ≥95％.The asepsis test demonstrated that the characters of 99Tcm-TRODAT-1 kit and injection were qualified.TRODAT-1 kit was stable at 0 -4 ℃ for 6 months or at room temperature (20 -25 ℃ )for 10 days,and the radiochemical purity of the injection was still ＞ 90％ at room temperature for 8 hours.ConclusionsThe quality control methods for 99Tcm-TRODAT-1 kit are simple and practical.The kit and injection are qualified and can be used for clinical application.

OBJECTIVETo evaluate the effect of endoscopic resection and traditional procedure in the management of sinonasal inverted papilloma with a staging system based on endoscopic examination of the nasal cavity and computed tomography (CT) scan evaluation.

METHODSTwo hundred and twenty-two patients with sinonasal inverted papilloma treated surgically were retrospectively reviewed. There were 23 cases in stage I; 119 cases in stage II; 65 cases in stage III and 15 cases in stage IV. Among these patients, 122 cases were treated endoscopically; 100 cases were treated by traditional surgical techniques, including 56 cases with lateral rhinotomy; 27 cases with intranasal approach and 15 cases with Caldwell-Luc technique.

RESULTSThe inverted papilloma was removed completely and no serious complications were encountered by all four kinds of techniques used. With an average follow-up of 3. 8 years, the recurrence rate for endoscopic group was 14.8% (18/122, four patients were in group I; nine in group II; four in group III; and one patient in group IV. No recurrence was found in group III who underwent endoscopic excision combined with Caldwell-Luc procedure. The recurrence rate for lateral rhinotomy group was 33. 9% (19/56, one patients in group I; six in group II; nine in group III; three in group IV). The recurrence rate for intranasal approach group was 51.9% (14/27, two patients were in group I; ten in group II; and two in group III). The recurrence rate for Caldwell-Luc procedure group was 29.4% (5/17, all in group II and group III). Regardless of approaches, patients who had primary resection had a recurrence of 26. 8%, whereas those with secondary resection had a recurrence of 20. 9% (P = 0.39).

CONCLUSIONSThe endoscopic surgical technique was proved to be a better method for treating sinonasal inverted papilloma in stage I and stage II. Better results for patients in stage III would be achieved by combining endoscopic technique with Caldwell-Luc procedure. As to patients with stage IV, radical external approaches should be considered.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Endoscopy ; Female ; Humans ; Male ; Middle Aged ; Otorhinolaryngologic Surgical Procedures ; Papilloma, Inverted ; surgery ; Paranasal Sinus Neoplasms ; surgery ; Retrospective Studies ; Treatment Outcome ; Young Adult