1.Design of Mdical special subject database according to the needs of grass root troops
Chinese Journal of Medical Library and Information Science 2014;(12):77-80
After the ways and methods to provide special subject database service for grass root troops were described according to their tasks and commissions, the database of altitude military medicine and emergency rescue database against NBC weapons were developed for altitude troops.
5.The relationship between NGF in serum and follicular fluid and polycystic ovary syndrome
Chunyan WANG ; Guiling FAN ; Jianping YI
Tianjin Medical Journal 2015;(9):1012-1014
Objective To investigate the relationship of nerve growth factor (NGF) between serum and follicular fluid in patients with polycystic ovary syndrome (PCOS), and its effect on pregnancy outcomes. Methods From December 2011 to November 2012, 65 PCOS patients suffered with in vitro fertilization-embryo transfer (IVF-ET) were included in PCOS group and 31 non-PCOS patients with IVF-ET were used as control group. The expressions of NGF in serum and follicular fluid were detected by ELISA on the injection day of chorionic gonadotropin (HCG). The expression levels of NGF in serum and follicular fluid were compared between PCOS group and control group. Results The NGF levels in serum[(14.38±0.42) ng/L] and follicular fluid[(9.61±0.49)ng/L] were significantly higher in PCOS group than those of control group[(11.39±0.38) ng/L and (7.55 ± 0.40)ng/L]. In PCOS group, NGF levels in serum [(14.22 ± 0.35)ng/L] and follicular fluid [(9.30 ± 0.31)ng/L] were significantly lower in pregnant group than those of non-pregnant group[(14.51±0.43)ng/L, (9.86±0.46)ng/L, P<0.01]. Conclusion The increased levels of NGF in serum and follicular fluid of PCOS patients contribute to the pathogenesis of PCOS. The high expression of NGF in serum and follicular fluid may be harmful to pregnancy in PCOS patients.
6.Avascular necrosis of the metacarpal head: a case report and literature review
Xiaolei FAN ; Wentao WANG ; Jian WANG ; Yi LIAO ; Rui XIAO
Chinese Journal of Orthopaedics 2021;41(7):436-441
Osteonecrosis is the most common disorder in femoral head and scaphoid. However, avascular necrosis (AVN) in metacarpal head is a rare disease. In the present study, a 14-year-old male patient complained of right-hand pain with a limited range of motion for one month. Physical examination showed that the active flexion was 70° and the extension was limited to 30° of the metacarpophalangeal (MCP) joints. The grip strength decreased to 60% of the contralateral hand. X-rays demonstrated flattening and sclerotic changes in the long finger and ring finger of metacarpal head. CT scanning indicated cystic, osteochondral defects and sclerotic changes in metacarpal head. Imaging examination further confirmed the diagnosis of AVN in the long metacarpal finger and ring finger. After conservative treatments including splint immobilization, non-steroidal anti-inflammatory drugs (NSAIDs) and physiotherapy, the local pain symptoms of the MCP joint gradually disappeared. The range of motion of MCP joint returned to normal with the grip strength score as 105% of the contralateral hand. MRI confirmed excellent remodeling and regeneration in the metacarpal head at two years later. The clinical characteristics, diagnosis and treatments of AVN of metacarpal head were reviewed. Although radiograph examination is commonly used, early-stage osteonecrosis of the metacarpal head should be confirmed by MRI. Given the rarity of this disorder, there is no consensus on the treatments. Metacarpal necrosis is the more common disorder in adolescent patients with a history of trauma. Considering the potential of bone remodeling, juveniles with metacarpal head necrosis could recover by conservative treatments.
7.Effect of prostate volume on histopathological outcomes in patients after laparoscopic radical prostatectomy
Fan ZHANG ; Yi HUANG ; Min LU ; Lulin MA ; Guoliang WANG
Chinese Journal of Urology 2012;33(5):360-363
ObjectiveTo compare the clinical characteristic and postoperative histopathological parameters in different prostate size and to assess the effect of prostate volume on histopathological outcomes in patients after laparoscopic radical prostatectomy. MethodsTwo hundred and sixteen patients from 2006 to 2011 who were proved prostatic carcinoma by biopsy and performed laparoscopic radical prostatectomy wewe retrospectively evaluated.All patients were divided into the small group ( < 30 ml,103 cases),intermediate group(30 -60 ml,71 cases) and large group ( >60 ml,42 cases) according to prostate volume.Clinical variables included age,body mass index (BMI),preoperative PSA level,prostate volume,percentage of positive needles,clinical stage,and biopsy Gleason score (GS).Histopathological parameters included pathological GS,upgrading or not compared to biopsy GS,pathological stage and surgical margins status.Preoperative clinical variables and postoperative histopatholgogical parameters were compared among the 3 prostate groups. ResultsPatients with smaller prostates had lower PSA levels than those with intermediate and larger prostates (P =0.000).They also had worse histopathological outcomes such as pathological GS ( P =0.034 ),upgrading of GS ( P =0.037 ),and pathological stage ( P =0.025 ).35.0% of patients in smaller prostate group had a positive surgical margin compare to 33.8% and 19.0% in intermediate and larger prostate groups,but there was no significant difference (P =0.152).ConclusionMen with smaller prostate may have more high-grade cancer and more advanced disease after laparoscopic radical prostatectomy.
8.A HPLC Method for Determination of the Content of an analog of Baogongteng A-ATST in the Aqueous Humor of Rabbits
Li-min, YANG ; Yi-fan, XIE ; Hui-ning, WANG
Journal of Shanghai Jiaotong University(Medical Science) 2001;21(1):20-21
Objective A HPLC method was established for determination of the content of ATST in the aqueous humor of rabbits. MethodsThe mobile phase was consisting of methanol-1% triethylamine(57:43) and omeprazole (OMZ) as internal standard. The detection was carried out with an ultraviolet detector operated at 235nm. ResultsThere was linearity over the range of 2. 056~41.12 ug/ml in the humor aquosus, r=0.9997. The average recovery of ATST was 94.58 %. Intra-day and in- ter-day RSD were less than 5 % and 10 % ( n = 5), respectively. Conclusion The method is reliable. It can be used for the study on the pharmacokinetics of ATST.
9.Protein expression profile of human glomerular mesangial cells under high glucose
Shuyan DU ; Qiuling FAN ; Lining WANG ; Gang YANG ; Yi JIANG
Chinese Journal of Nephrology 2010;26(9):671-677
Objective To analyze the protein expression profile of human glomerular mesangial cells (HMCs) under high glucose and to characterize molecular functions and biological processes. Methods HMCs were divided into high glucose cultured group (30 mmol/L) and normal glucose cultured group (5 mmol/L). The total proteins were extracted after culture for 48 hours. The total proteins of the two groups were separated using two-dimensional fluorescence difference in gel electrophoresis (2-D DIGE) and analyzed using DeCyder 2-D difference analysis software. The differentially expressed proteins were further identified using in-gel digestion with trypsin, of which peptide extracts were prepared for MALDI-TOF-MS analysis. Protein identifications were searched in the NCBI protein database using the Mascot search engine. Results One hundred and forty-seven protein spots whose expression levels were significantly increased or decreased more than 1.5 folds under high glucose were identified. Ninety-six differentially expression protein spots were analyzed by peptide mass fingerprinting and 37 kinds of proteins were identified. The protein spots of phosphatidylethanolamine binding protein 1 (PEBP-1), granulysin,ATP synthase H + transporting mitochondrial FO complex subunit F2 were observed only in high glucose group. The expression of 24 proteins was up-regulated by high glucose, including eosinophil cationic protein, RGS membrane-interacting proteins 16 (MIR16), peptidyl-prolyl cis-trans isomerase, disks large homolog DLG2, breast cancer 2, early onset (BRCA2), Catechol-O-methyltransferase etc. The expression of 5 proteins was down-regulated by high glucose, including O-GlcNAc transferase-interacting protein 106 000 isoform 1, proteasome beta 6 subunit precursor,NEFA-interacting nuclear protein NIP30 etc. Conclusions Expression of 147 proteins in HMCs alters under high glucose. These proteins are involved in the regulation of cytoskeleton, glucose metabolism, cell division, gene transcription, signal transduction, phosphorylation, cell proliferation,apoptosis etc. In-depth analysis of these differentially expressed proteins' function and crosstalk is expected to provide an important experimental basis for clarifying the pathogenesis of diabetic nephropathy.
10.Combined brachytherapy with intermittent hormonal therapy in treating clinical moderate and high risk non-metastatic prostate cancer
Fan ZHANG ; Yi HUANG ; Lulin MA ; Junjie WANG ; Weiqiang RAN
Chinese Journal of Urology 2017;38(6):448-452
Objective To investigate the clinical value of 125I particle implantation brachytherapy combined with intermittent hormonal therapy for treating clinical moderate and high risk non-metastatic prostate cancer.Methods A prospective study was proceeded and 100 cases with moderate and high risk (cT≥T2b,Gleason score ≥ 7,pre-biopsy PSA ≥ 10 ng/ml)non-metastatic prostate cancer were included.The selected patients were divided into two group.In the study group,patients were treated with 125I particle implantation combined with intermittent hormonal therapy.In the control group,patients were treated with only intermittent hormonal therapy.Hormonal therapy was maximal androgen blockage for two groups,including bicalutamide 50 mg oral every day and Leuprorelin 3.75 mg subcutaneous injection every 28 days.There were 50 cases in each group and clinical trial agreements were signed.During follow-up,PSA were tested every month.Chest X-ray and whole-body hone scanning were checked every 6 months.Hormonal therapy was stopped when patient's PSA level fell to 0.2 ng/ml,and keep stabilized for 3 months.When PSA level elevated for 3 times continuously and over 1 ng/ml,hormonal therapy was initiated again.The IPSS scores were documented before treatment and every 3 months after treatment.Adverse reactions of urinary tract and rectum were assessed every 3 months after 125I particle implantation in study group.The ratio of the first time to stop hormonal therapy,the time duration of first hormonal therapy and stable phase,re-hormonal therapy free survival rate,bone metastasis free survival rate,castration resistance prostate cancer(CRPC) free survival rate,cancer-specific free survival rate and overall survival rate were compared.Results The 100 cases in this study were followed up for 24-40 months,with an average time of 31.6 months.In study group,the PSA level in all cases descended to the level of stopping hormonal therapy.The time duration of hormone therapy ranged from 4 to 12 months,with an average time of 6.3 months.21 (42%) cases had a PSA elevation again to restart hormonal therapy.In control group,the PSA level in 47 cases descended to the level of stopping hormonal therapy.The time duration of hormone therapy ranged from 5 to 15 months,with an average time of 7.2 months.34 (68%) cases had a PSA elevation again to restart hormonal therapy.There was no significant difference in percentage of cases of stopping hormone therapy and in time duration of hormonal therapy for the first cycle.Instead,there were significant differences in stable phase after first cycle hormonal therapy between two groups (27.2 months vs.17.7 months;P < 0.001).When analyzed by Kaplan-Meier survival curve,there was no significant difference in cancer-specific survival rate and overall survival rate.There were significant differences in Re-hormonal therapy free survival (P =0.002),bone metastasis free survival (P =0.04) and CRPC free survival(P =0.005).Conclusions Compared with intermittent hormonal therapy alone,125I particle implantation brachytherapy combined with intermittent hormonal therapy could prolong the hormonal sensitive time in moderate and high risk nonmetastatic prostate cancer patients and control the progress of the prostate cancer.