1.Research progress of acute kidney injury biomarkers
Lin SUN ; Wei GUO ; Baishen PAN
Chinese Journal of Laboratory Medicine 2014;(6):425-429
Incidence of acute kidney injury ( AKI ) is increasing rapidly to epidemic proportions . Development of AKI is associated with increased morbidity , mortality and hospitalization costs .Currently available diagnostic tools are mostly insensitive for early diagnosis of AKI .Finding an early, reliable, easily reproducible , economical and accurate biomarker for AKI is a top research priority .In recent years , many serum and urinary proteins have been investigated as possible early markers of AKI .
2.Effects of heart-shape anastomosis on 31 cases hirschsprung′s disease
wei-guo, SUN ; xue-dong, ZHANG
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To explore and summarize the heart-shape anastomosis for hirschsprung′s disease .Methods Before the operation,the colon was cleaned thoroughly ,31 cases of this group (8 month-6 years old)underwent colonic pull-through and the dilated segment of colon was pulled out and resected.Normal colon and lower segment of rectum′s stomosis were stomosed as heart-shape (higher anterior and lower posterior).After replacing the colon and stomosis ,close the abdomen layer by layer.Results All 31 cases anus sphincter muscle were retained at most degree,so that retained their function of normal defecation .All 31 cases were healed and discharged, without one case with early complications as stomosis fistila,et al.No stomosis stenosis or other late period complication were found in 24 cases with long period follow-up.Conclusions Heart-shape stomosis is a good method for hirschsprung′s disease,especially fitful to the common type and short-segment type and long-segment type with diseased part in sigmoid colon .This method is easy,convenient,no special equipment was needed,easy to be publicized.
3.Literature Study on Point-selection Rules in Acupuncture-moxibustion for Gastroptosis Based on Data Mining
Wei SUN ; Peiqi ZHAI ; Jifei DONG ; Wenliang DONG ; Wei GUO
Shanghai Journal of Acupuncture and Moxibustion 2015;(6):588-591
Objective Based on the Traditional Chinese Medicine Inheritance Support System (TCMISS) (V2.0), to analyze the point-selection rules in acupuncture-moxibustion prescriptions for gastroptosis indexed by China National Knowledge Infrastructure (CNKI), Wanfang and Vip databases, and to obtain novel prescriptions, for providing clinical references. Method Acupuncture-moxibustion prescriptions for gastroptosis indexed by CNKI, Wanfang and Vip databases were collected and filtered, and then input into the TCMISS. The prescriptions were analyzed by using data mining method. Result The frequency and core combination of the commonly-used acupoints were determined out of the 76 eligible prescriptions for gastroptosis, and 3 novel prescriptions were obtained. Conclusion The TCMISS is an important tool in mining and analyzing the point-selection rules in acupuncture-moxibustion treatment, and the new acupoint prescriptions generated by this system provide references to the treatment of gastroptosis.
4.Effects of Xuebijing on the expression of ICAM-1 and its counterreceptor LFA-1 in acute necrotizing pancreatitis of rats
Wei SUN ; Fang WEI ; Lin GUO ; Qiang WANG ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(12):-
Objective To investigate the effects of Xuebijing injection on the production of ICAM-1 and its counterreceptor(LFA-1)in ANP of rats at different time points.Methods ANP was induced by multiple points in- jection of 5% chenodeoxycholic acid into the pancreas,followed by ligation of pancreatic duct.Expressions of ICAM- 1 at different time points were assessed by immunohistochemistry method,the expressions of LAF-1 on neutrophils at different time points were detected by flow cytometer.The effect of Xuebijing injection was also evaluated by de- tecting the output of ascitic fluid,amylase level and histological changes in pancreas and lungs.Results The expres- sions of ICAM-1 in pancreas and lung of Xuebijing injection group decreased significantly than those in ANP group at most time points during the research period(P
5.Activation of phosphatidylinositol 3-kinase-protein kinase B(PI3K-PKB) induced by 17?-estradiol in endometrial carcinoma cell (Ishikawa)
Ruixia GUO ; Lihui WEI ; Jianliu WANG ; Pengming SUN ; Xiuli SUN
Chinese Journal of Obstetrics and Gynecology 2001;0(07):-
Objective Cellular response to estradiol is mediated both by estrogen receptor (ER) binding to estrogen response element (ERE) and by non-nuclear actions like activation of signal transduction pathways such as mitogen activated protein kinase (MAPK) pathway. However, the signal transduction of estrogen involving phosphatidylinositol 3-kinase-protein kinase B (PI3K -PKB) is not clear in endometrial carcinoma. Our purpose was to study if PI3K-PKB signaling pathway could be activated rapidly by 17?-E 2 through non-nuclear action and also, whether PI3K inhibitor, LY294002, could inhibit such non-nuclear action of 17?-E 2 in endometrial carcinoma cell line Ishikawa. Methods Levels of phosphorylated PKB(Ser473 site, p-PKB) and total PKB were examined by western blotting in Ishikawa cells after stimulation with 17?-E 2 at 1?10 -6 mol/L for different time periods and at varied doses for 30 min. Optimal time and appropriate dose for 17?-E 2 to activate PKB in Ishikawa cells were observed. Inhibitory effect of LY294002 on activation of PKB induced by 17?-E 2 was also studied. p-PKB/PKB ratio was used to indicate levels of activation of PKB. Results p-PKB/PKB at 15 min (0.533?0.029) was significantly higher than the control (0.361?0.029, P 0.05, 0.05,
7.Roles of folate metabolism in prostate cancer.
Fei-vu SUN ; Qing-feng HU ; Guo-wei XIA
National Journal of Andrology 2015;21(7):659-662
Epidemiological surveys show that folic acid can prevent prostate cancer, but fortified folic acid may increase the risk of the malignancy. The physician data queries from the National Cancer Institute of the USA describe folate as protective against prostate cancer, whereas its synthetic analog, folic acid, is considered to increase prostate cancer risk when taken at levels easily achievable by eating fortified food or taking over-the-counter supplements. We review the current literature to examine the effects of folate and folic acid on prostate cancer, help interpret previous epidemiologic data, and provide a clarification regarding the apparently opposing roles of folate for patients with prostate cancer. A literature search was conducted in Medline to identify studies investigating the effect of nutrition and specifically folate and folic acid on prostate carcinogenesis and progression. In addition, the National Health and Nutrition Examination Survey database was analyzed for the trends in serum folate levels before and after mandatory fortification. Folate likely plays a dual role in prostate carcinogenesis. There remains some conflicting epidemiologic evidence regarding folate and prostate cancer risk. However, there is growing experimental evidence that higher circulating folate levels can contribute to prostate cancer progression. Further research is needed to clarify these complex relationships.
Dietary Supplements
;
adverse effects
;
Disease Progression
;
Folic Acid
;
analogs & derivatives
;
blood
;
pharmacology
;
Food, Fortified
;
Humans
;
Male
;
Nutrition Surveys
;
Nutritional Status
;
Prostatic Neoplasms
;
blood
;
chemically induced
8.Radical scapulectomy with limb salvage for sarcomas of shoulder girdle
Wei GUO ; Xin SUN ; Taiqiang YAN ; Xiaodong TANG
Chinese Journal of Orthopaedics 2011;31(6):587-593
Objective To evaluate the functional outcomes of different limb salvage procedures in patients with bone and soft tissue sarcomas of the shoulder girdle.Methods From July 2001 to July 2008,16 patients with limb salvage for sarcomas of shoulder girdle were respectively analyzed,including 11 males and 5 females with an average age of 38.4 years (range,17-67).Localizations of the tumors were 8 in the scapula(including 4 chondrosarcomas,1 Ewing sarcoma,and 3 metastases),5 soft tissues of the shoulder girdie(including 2 synoviosarcomas,1 fibrosarcoma,1 hemangioperieytoma,and 1 well-differentiated liposarcoma),and 3 proximal humerus (including 1 osteosarcoma and 2 metastases).Twelve patients were treated with classical Tikhoff-Linberg procedures,and 4 with improved procedures.Results The mean surgical time duration was 3 hours.The mean blood loss was 1600 ml.The mean follow-up time was 40 months.Major complications included 2 cases of delayed wound healing,and 1 ulnar nerve injury.One patient had local recurrence and died of pulmonary metastases 18 months after second operation of interscapulothoracal amputation.The patient with fibrosarcoma also died of pulmonary metastases 23 months later.One patient with synoviosarcoma was alive with pulmonary metastases in 9 months.Four of 5 patients with carcinoma metastases died during 11 to 23 months later.The 5-year cumulative survival rate was 34.6%.Functions were preserved in the whole hand and elbow.The MSTS functional score of the patients receiving classical Tikhoff-Linberg procedures was 14.7,while improved Tikhoff-Linberg procedures was 19.5.Conclusion The Tikhoff-Linberg procedure not only provides a wide resection of tumors in the shoulder girdle but also preserve the whole hand and elbow functions.The shoulder function was poor in patients receiving classical Tikhoff-Linberg procedures.
9.En bloc resection of tumor involving partial sacrum and ipsilateral sacroiliac joint with reservation of contralateral sacral foramina
Wei GUO ; Dasen LI ; Xin SUN ; Yi YANG ; Lu XIE
Chinese Journal of Orthopaedics 2012;32(11):1005-1009
Objective To evaluate effect of en bloc resection of malignant sacral tumor involving partial sacrum and ipsilateral sacroiliac joint with reservation of contralateral sacral foramina.Methods Between February 2005 and July 2010,16 patients with malignant sacral tumor involving partial sacrum and ipsilateral sacroiliac joint underwent hemi-sacrectomy and functional reconstruction.The operation achieved en bloc resection of tumor with reservation of contralateral sacral foramina.There were 10 males and 6 females,aged from 17 to 70 years (average,37.9 years).There were 5 cases of chondrosarcoma,3 cases of Ewing's sarcoma,2 cases of malignant schwannoma,2 cases of osteosarcoma,1 case of malignant giant cell tumor of bone,1 case of lymphoma and 2 cases of metastatic tumor.Results The surgical time ranged from 4 to 11.5 hours (average,6.5 hours).The average blood loss was 3600 ml (range,1500 to 5500 ml).Five patients underwent type Ⅰ resection,while 11 patients underwent type Ⅱ resection.All patients were followed up for 21 to 59 months (average,34.4 months).Three months after operation,13 patients had difficulty with ankle plantar flexion,while sphincter function was more or less reserved in 16 patients.Four patients (25%)had wound healing complications,which was cured after debridement and drainage.Local recurrence occurred in 7 patients.There were 5 cases of local recurrence among 6 patients who had intralesional margin;4 recurrence lesions located in the sacrum and 1 in soft tissue.Eight patients (50.0%) survived without tumor,2 patients (12.5%)survived with tumor,and 6 patients (37.5%) died of tumor.Conclusion The en bloc resection of tumor involving partial sacrum and ipsilateral sacroiliac joint with reservation of contralateral sacral foramina was feasible and had better outcome compared with total sacrectomy.
10.SEM observation of hair cell progenitors forced to express Hath1 from rat cochleae
Yuan ZHANG ; Jianhe SUN ; Wei GUO ; Yinyan HU ; Suoqiang ZHAI
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(05):-
OBJECTIVE To investigate the effect of Hath1 on epithelial ridge (GER) cells from postnatal rat cochlear. METHODS An experimental method was developed which allowed the isolation and culture of GER cells from P1 rat cochleae using a combinatorial approach of enzymatic digestion and mechanical separation. The dissociated GER cells were cultured in DMEM+10% FBS. The GER explants infected with ad-Hath1 for 3 hours were cultured for 10 days and observed under scanning electron microscope. RESULTS The GER cell cultures tended to attach to the substratum and grow in patches which assume a polygonal morphology similar to that of epithelial cells in medium containing 10% serum. Stereociliary bundle-like structures were observed in the boundary of GER cell patches forced to express Hath1. CONCLUSION That GER cells which are likely hair cell progenitors could be cultured in vitro and generate stereociliary bundle-like structure when forced to express Hath1 suggests that the misexpression of Hath1 probably can induce the predifferentiation of pure hair cell progenitors into hair cells in vitro.