After a description of subject service by revealing Nature/Science contents and pushing Information Bulletin of Nature/Science-special issue of medical and life sciences in Library of Nantong University, its utilization was inves-tigated with questionnaire, and some novel ideas were put forward for deepening subject service in libraries.

Objective To investigate the clinicopathological features of thymic neuroendocrine carcinoma and its differential diagnosis. Methods Clinicopathologic analysis and immunohistochemical staining were performed in 5 cases of TNC. Results For 5 cases TNC, 3 cases occurred in men, 2 cases occurred in women. The average age was 46.8 years. They were with chest symptoms before operation. 3 cases were Ⅱ and 2 cases were Ⅲ by clinic stages. Grossly , the tumors were gray in color with areas of hemorrhage and necrosis. Histopathology of well differentiated 2 cases and poorly differentiated 3 cases. Immunohistochemically, the tumor cells were positive for CK, NSE, SyN and CgA. 3 cases were positive for PCNA, Ki67, p53. Conclusions TNC has a pleomorphic appearance of histological features with well, moderate and poorly-differentiated areas. Immunohistochemical staining is helpful in the differential diagnosis of TNC from other tumors derived from the thymus. Neither grading as neuroendocrine carcinomas nor any individual histologic parameter showed a significant association with prognosis. Initial aggressive treatment, including complete surgical excision and adjuvant radiotherapy, appears to offer the best hope for prolonged survival. Adjuvant chemotherapy also should be considered, because the incidence of distant relapse is high.

To review recent studies on the research advance of RET( Rearranged during transfection) on-cogene in thyroid cancer,breast cancer,and lung cancer.The literatures on the structure of RET gene and coding product,cell signal transduction,relationship among thyroid cancer,breast cancer,and lung cancer are reviewed. RET gene encoding tyrosine kinase receptor,involving in cell signal transduction,rearrangement of RET gene is frequently seen in thyroid cancer,which is reported more and more in breast cancer,and lung cancer.Rearrange-ment of RET gene is closely correlated with the occurrence and progress of thyroid cancer,breast cancer,and lung cancer.Taking together,these findings suggest that RET present an attractive therapeutic target for the treatment of certain cancer subsets.

Objective To evaluate status of female pelvic floor function and sexual life after total hysterectomy.Methods From March 2001 to January 2004,92 patients with undergoing hysterectomy due to benign gynecological diseases were enrolled in this study.They were followed up at outpatient department,including pelvic examination,filling in female sexual quality questionnaire,pelvic floor distress inventory short form 20 ( PFDI-20 ),pelvic floor distress impact questionnaire short form 7 ( PFIQ-7 ) and quality of sexual life of chinese women questionnaire.Results At 6 years after total hysterectomy,it was observed that 7 cases (7/92,7.6％ ) were pelvic organ prolapse and 62 cases (62/92,67.4％ ) were urinary incontinence.A median score of PFDI-20 were 4.67.A median score of PFIQ-7 were 0.Symptoms of pelvic floor dysfunction concentrated in lower urinary tract ( 58 cases with cough leak,32 cases with spot urine leakage,31 cases with frequent micturition,24 cases with urgent urination)and bowel symptoms (26 cases with constipation,24 cases with defecation urgency,21 cases without fully drained stool).In the 68 patients filling in female sexual quality questionnaire,an average score were (127 ± 20) points.Female sexual quality questionnaire score,sexual satisfaction,sexual communication and adjustment,sexual response and sexual body image were positively correlated with the patients' income ( r = 0.432,P = 0.007 ; r = 0.356,P =0.028;r=0.475,P=0.003;r=0.421,P=0.009;r=0.324,P=0.047).Conclusions Hysterectomy may have long-term effect on female pelvic floor function and sexual life.Quality of sexual life in those patients was positively correlated with income.

Animals ; Aorta, Thoracic ; physiology ; Dopamine ; pharmacology ; Hydrogen-Ion Concentration ; In Vitro Techniques ; Rats ; Vasoconstriction ; drug effects

Acidosis ; complications ; physiopathology ; Animals ; Aorta, Thoracic ; drug effects ; physiopathology ; Dopamine ; pharmacology ; In Vitro Techniques ; Male ; Rats ; Rats, Wistar ; Shock, Septic ; complications ; physiopathology ; Sympathomimetics ; pharmacology

Objective To investigate the surgical collaboration in laparoscopic live donor nephrectomy.Method A retrospective analysis was made on the clinical data of 18 cases of laparoscopic live donor nephrectomy.Result All laparoscopic live donor nephrectomy were completed successfully,without severe complications caused by surgical collaboration.Conclusion The key points of successful operation are delicate mental care,sufficient preoperative preparation,good cooperation during the operation and related health education.

Objective: To clone novel member of alkaline/neutral invertase (NI) gene in a rare and endangered medicinal plant of Dendrobium officinale, conduct bioinformatic analysis and detect the quantitative expression in different organs. Methods: Primers were designed according to NI gene segment which was selected from leaf transcriptome sequencing results of D. officinale. The full-length cDNA of NI gene was cloned via homology-based cloning and rapid amplification of cDNA ends (RACE) approach. The physical and chemical properties, secondary structure and tertiary structure of NI protein were forecasted and analyzed using related software. The expression levels of NI gene in roots, stems, and leaves of D. officinale were detected using real-time PCR. Results: A novel gene encoding a NI protein was cloned from D. officinale. This gene (named as DoNI2, GenBank accession number: KY794404) had a total length of 2 397 bp with an open reading frame of 1 836 bp, and encoded a predicted polypeptide of 611 amino acids with a molecular weight of 69 050. Bioinformatics predicted that the isoelectric point of DoNI2 gene encoding protein was 6.38, the instability coefficient was 44.95, and the hydrophobic coefficient was −0.232. RT-PCR showed that DoNI2 gene expressed in all organs with highest expression level in stems and the lowest in roots. DoNI2 gene expression was significantly positively correlation with NI enzymatic activities at different growth years of D. officinale. Conclusion: The full length cDNA sequence in a mitochondrial DoNI2 gene was identified, facilitating future functional analysis of the gene involving in the regulation of sugar metabolism in D. officinale.

Objective To observe the effects of dexamethasone (DEX) therapy on the clinical outcome and changes of lymphocyte subsets in children with mild and severe encephalitis.Methods Eighty-two children with mild and severe viral encephalitis were randomly divided into two groups: with DEX treatment (n=46) or without(n=36).The clinical efficacy was evaluated 3 weeks later, and the clinical manifestation were also observed. The changes of CD4~+,CD8~+ T lymphocyte percentage were determined by flow cytometry on admission and at 1 week,4 weeks after treatment.Another group of 20 cases was enrolled as control group.Results Compared with the control group,both the DEX treatment group and non-DEX treatment group showed a reduced CD4~+ lymphocyte count, an increased CD8~+ lymphocyte count(P

Objective To investigate the effect of Mepilex on pressure sores in patients at lateral position after craniocerebral surgery.Methods Toally 60 patients lying at lateral position after craniocerebral surgery were randomized into two groups in equal number with random digit table:the control group and experiment group.In the control group,Gel pad was used to prevent and treat the pressure sores and in the experiment group Mepilex was used between the compressed skin and operation table before setting the position.The skin conditions of the two groups were observed after operation.Result The prophylactic effect of pressure sore in the experiment group was significantly better than that in the control group (P＜0.05).Conclusion Mepilex can prevent the skin pressure sores in the patients at lateral position after cerebral surgery.