BACKGROUND:The repair and reconstruction of laryngeal structure and function play a crucial role in partial laryngectomy,and the repairing materials and methods have been developed rapidly in recent years.OBJECTIVE:To explore the present application of tissue transplantation on the repair and functional reconstruction after partial laryngectomy,and provide evidences for the selection of repairing materials and reconstructive techniques for laryngeal function.RETRIEVAL STRATEGY:A computer-based search of PubMed database was undertaken to identify the articles of functional reconstruction after partial laryngectomy published from January 1997 to July 2007,with the keywords of "laryngectomy,laryngeal carcinoma/cancer,reconstruction" in English.Simultaneously,Chinese Journal Full-text Database was searched for the relevant articles published between January 2000 and July 2007 with the keywords of "partial laryngectomy,laryngeal carcinoma,repair/reconstruction" in Chinese.Totally 160 relevant articles was retrieved,of which 69 articles were English and 91 articles Chinese.Articles on repair or reconstruction after partial laryngectomy were selected.After the primary filtration,fulltexts of the English articles were checked,and articles on review and with repetitive content were excluded.The articles on clinical research,which were issued in authorized journals,were selected.At last,totally 31 articles were included for review.LITERATURE EVALUTION:Among 31 included articles,16 articles were English and 15 articles Chinese.DATA SYNTHESIS:Functional reconstruction is the key point in course of partial laryngectomy.Technique on repairing postoperative larynx have made a progress,and autologous tissues,such as myofascial flap,flap of strap muscles,myocutaneous flap of neck fascial lata and epiglottis,are extensively used for larynx,which have got good effect.The study of the application of tissue engineering and other variant materials after partial laryngectomy is going on.CONCLUSION:With rapid development of partial laryngectomy,all kinds of repairing materials and reconstruction techniques are used.Repairing postoperative larynx has no fixed mode.It is a very important topic to choose suitable repairing material and reconstruction technique according to different factors such as laryngeal carcinoma type,lesion degree and excision scope,so as to recover the vocalization,respiratory and deglutition function,and raise the patients' survival rate and life quality.

The netrin family represented by netrin-1 is currently one of the most concerned axon guidance factors. Netrin-1 plays guidance roles for axon growth and cell migration by the dual mechanisms of attracting/excluding during the embryonic development. At the same time, netrin-1 also widely expresses in the adult nervous system and involves in the reconstruction of the structure and function after the achft nervous system injury. This article reviews the roles of netrin-1 in ischemic brain injury.

OBJECTIVE: To investigate whether the proteasome inhibitor, gliotoxin, combined with the endoplasmic reticulum stress inducer, tunicamycin, could enhance the apoptotic death of tumor cells. METHODS: MTT assay was used to detect the cytotoxicity. The combined drug index (CDI) was used to evaluate the synergistic effect. Flow cytometry was used to analyze the apoptosis rate. The protein expression level was detected by Western blot. RESULTS: The IC50 of gliotoxin and tunicamycin is (1.44±0.23) and (26.14±6.14) μmol·L-1, respectively. In the effective concentration, gliotoxin combined with tunicamycin could significantly inhibit cell proliferation and induce typical apoptotic morphological changes. The combination was synergistic according to the result of MTT assay. As measured by flow cytometry, the combination remarkably increased the apoptosis rates of HT-1080 cells, especially for 0.2 μmol·L-1 gliotoxin combined with tunicamycin, the apoptosis rate was up to 66.6% and CDI was 0.649. The expression changes of apoptosis-related proteins such as caspase-8, caspase-3, PARP and NF-kB were detected when treated with the combination. CONCLUSION: Gliotoxin can improve the chemosensitivity of fibrosarcoma HT-1080 cells to tunicamycin and enhance the apoptosis of tumor cells induced by tunicamycin. Thus, our study may provide a new drug combination to antitumor therapy.

Objective To study the relationship between serum HBV DNA level and apoptosis of peripheral blood mononuclear cells (PBMC) , and the relationship between serum HBV DNA level and the activity of caspase-8 in the patients with chronic hepatitis B (CHB). Method 30 CHB patients were selected as experimental group, and it was divided into three subgroups according to the serum HBV DNA level, subgroup A (high serum HBVDNA), subgroup B (medium serum HBVDNA), and subgroup C (low serum HBVDNA). 10 healthy adults were random selected as control group. PBMC were isolated from two groups by separating medium of lymphocytic cell and culturing it with phytohemagglutinin (PHA) in vitro for 72 hours. The PBMC was stained with PI and the apoptosis was assayed with flow cytometry. At the same time, the aetivity of caspase-8 of PBMC was assayed by color matching. Results The apoptosis rate of PBMC of experimental group ( 26. 88 ± 7.37 ) % were higher than that of the control group ( 14. 95 ±2. 53)% ( P <0. 01 ). In the experimental group, the apoptosis rate of PBMC of subgroups A, B and C showed decreasing order (34. 75 ± 4. 59)%, (25.63 ± 3.55 )%, ( 18. 91 ± 3. 81 )%. The activity of caspase-8 of experimental group 2. 99 ±0. 82 were higher than that of the control group 1.43 ±0. 91 ( P <0. 01 ). The activity of caspase-8 of subgroup A, B and C showed the same decreasing order: 3. 87 ±0. 35,2. 95 ± 0. 36, 1.95 ± 0. 29. There was a positive correlation between the apoptosis level of PBMC and the activity of caspase-8 in experimen tal group ( r = 0. 610, P < 0. 01 ). Conclusion AICD of PBMC was found in patients with CHB. The activity of caspase-8 increased in that process, and it may participate in the transduction of apoptosis signal. Serum HBV DNA level was related with the apoptosis rate of PBMC and the activity of caspase-8, and it may be one of the reasons of apoptosis in PBMC.

Total 118 patients with pyogenic liver abscess admitted to Zhongshan Hospital were classified into pypgenic liver abscesses of cryptogenic origin (PLAC,n =54),pyogenic liver abscesses of biliary origin (PLAB,n =48) and pyogenic liver abscesses of hemagenous origin (PLAH,n =16)according to the causes.The clinical features of three groups were compared and analyzed.The results showed that no statistically significant difference existed among three groups in clinical manifestation and signs.Compared to PLAB,the abscesses in right lobe of liver were more common in PLAC,diabetes mellitus was more prevalent in PLAC,but the co-existing diseases including chronic liver disease,non biliary malignant tumor and ALP elevation were less in PLAC.Klebsiella pneumoniae was frequently detected in PLAC,but there was no significant difference comparing to other two groups.No significant difference was found among three groups in the choice of therapeutic methods,the course of antibiotics,length of hospital stay and the days from admission to diagnosis.

Acupuncture Points ; Acupuncture Therapy ; instrumentation ; Adolescent ; Adult ; Female ; Humans ; Male ; Middle Aged ; Needles ; Urticaria ; therapy ; Young Adult

Objective: To observe the biocompatibility of titanium implant surfaces using laser scanning confocal microscopy (LSCM). Methods; Titanium implant surfaces were prepared by 3 different methods. Osteoblasts were seeded onto the titanium surfaces. The cells were investigated by LSCM. Results: The sand-blasted titanium surfaces showed the best biocompatibility. Conclusion; The biocompatibility of titanium implant surfaces depends on the surface preparation method.

The clinical data of 118 patients with bacterial liver abscess admitted to a tertiary hospital from January 2007 to December 2009 were analyzed retrospectively.Etiology study showed that 45.8％(54/118) cases of bacterial liver abscess were cryptogenic,40.7％ (48/118) were biliary source and 13.5％ (16/118) were hematogenous.The positive rate of pus culture was 57.1％ (36/63),among which klebsiella pneumoniae accounted for 72.2％ (26/36).The positive rate of blood culture was 31.2％(20/64) and klebsiella pneumoniae accounted for 95％ (19/20).One hundred and sixteen patients (98.3％) underwent color ultrasound examination with an accuracy rate of 93.2％.84 patients (71.2％)underwent the CT scan with an accuracy rate of 95.3％ and 20 patients underwent MRI with an accuracy rate of 85％.Seventy five patients (63.6％)accepted ultrasound-guided percutaneous aspiration and catheter drainage combined with antibiotic therapy; 40 patients(33.9％)were treated with antibiotics alone.On the discharge 27 patients(22.9％) achieved clinical cure,87 patients (73.7％) were classified as effective,4 patients (3.4％) had no effect and no death in this group of patients.The average length of hospital stay was 16 days.Cryptogenic was the most common cause of bacterial liver abscess,biliary source took the second place.Kleibsiella pneumoniae was the predominant organism.Detailed medical history inquiry,physical examination and assistant examination may increase the accuracy rate of diagnosis.Needle biopsy should be performed if necessary.Ultrasound-guided percutaneous aspiration and catheter drainage combined with antibiotics should be the first-line treatment.

[Objective] To explore the etiology and pathogenesis of rheumatoid arthritis from the perspective of the theory of Fuxie, so as to more comprehensively understand the rheumatoid arthritis, broaden the thinking of clinical diagnosis and treatment, and improve the clinical efficacy. [Methods] The theory of Fuxie theory was summarized, from the aspects of interpretation, theoretical origin, modern medical knowledge and so on, combined with the regularity of the pathogenesis of the pathogen, the etiology, pathogenesis and treatment of rheumatoid arthritis were discussed. [Results] Fuxie theory is originally derived from Huangdi Neijing, it is considered that Fuxie is divided into exogenous and endogenous Fuxie foxier, etiology of rheumatoid arthritis with hidden pathogenic objective basis, its pathogenesis with hidden pathogenic mechanism, the treatment principle and treatment method by pathogen consistentcy. [Conclusion] Understanding of rheumatoid arthritis, according to the characteristics and development of Fuxie disease transmission rules, can better grasp the nature of the disease, diagnosis and treatment of Fuxie theory of rheumatoid arthritis has important clinical significance, rheumatoid arthritis from Fuxie theory provides new ideas and methods for clinical treatment.

Objective To study short-term therapeutic efficacy of mesh & plug repair for gerontal groin hernias. Methods 110 gerontal patients with groin hernia were treated by mesh & plug hernia repair with Mesh & Perfix plug. Results 98 cases(81.8%) were followed up for two years and no recurrence was found. Conclusions The Mesh & Perfix plug is a kind of ideal material for herniorrhaphy especially for gerontal patients or those with other diseases.