1.Effects of delivery mode on postpartum fecal incontinence and urinary incontinence in Chinese women
Hongxia ZHANG ; Xin YANG ; Hairong YAO ; Rui WANG ; Xiaohua LI ; Haiyang YU ; Huixia YANG ; Yue DONG
Chinese Journal of Perinatal Medicine 2011;14(10):598-602
Objective To investigate the prevalence and associated factors of fecal incontinence (FI) and urinary incontinence (UI) in postpartum Chinese women.Methods Questionnaires about FI and UI symptoms were completed via telephone interviews conducted within six months after delivery.Multi-variant Logistic analysis was applied for relation between delivery mode and FI or UI.Results (1) Two thousand and twelve postpartum women were admitted into this study,among which 14 (0.7%) had FI within 6 months after delivery.Logistic regression analysis showed that FI was significantly associated with forceps delivery (OR =20.09,95 % CI:3.64-110.90,P =0.000),and mediolateral episiotomy (OR=6.11,95% CI:1.29-28.80,P=0.024).(2) Among the 2012 women,the prevalence of UI,stress urinary incontinence (SUI),urgent urinary incontinence (UUI)and mixed urinary incontinence (MUD was 10.04% (n=202),8.15% (n=164),0.94% (n=19)and 0.94 % (n =19),respectively.Logistic regression analysis found that SUI prevalence was related to maternal age (OR =1.07,95% CI:1.04-1.11,P =0.000),maternal weight before delivery (OR=1.04,95% CI:1.02-1.06,P=0.001),neonatal head circumference (OR=1.20,95% CI:1.05-1.39,P =0.010),mediolateral episiotomy (OR =4.96,95 % CI:3.05-8.07,P =0.0005 ),spontaneous vaginal delivery (OR=5.22,95% CI:2.53-10.76,P=0.000) and forceps delivery (OR=9.20,95% CI:4.07-20.79,P=0.000).UUI was related to maternal weight before delivery (OR=1.51,95% CI:1.12-2.05,P=0.008).MUI was related to maternal weight before delivery (OR=1.06,95% CI:1.00-1.11,P=0.049),duration of second stage of labor (OR=1.01,95% CI:1.00-1.03,P =0.010),mediolateral episiotomy (OR =7.76,95% CI:1.42-42.52,P=0.017) and forceps delivery (OR=15.21,95% CI:1.61-143.44,P=0.018).(3) The prevalence of SUI was higher at 4 days and 42 days after delivery (7.95% and 9.10%).Conclusions (1) F1 and UI prevalence is lower in this study than in other reports.(2) Vaginal delivery is a risk factor for women's FI and UI,especially forceps delivery and mediolateral episiotomy.(3) Maternal age,pre-delivery weight,newborn head circumference,spontaneous vaginal delivery,forceps delivery and mediolateral episiotomy might increase the risk of UI.
2.Protective effect of dorsal longitudinal myelotomy at 72 Hours after spinal cord injury in rat model
Rui Gu ; Xin Zhang ; Degang Yang ; Wei Sun ; Mingliang Yang ; Liangjie Du ; Feng Gao ; Jianjun Li
Neurology Asia 2012;17(2):141-146
Incision of the spinal cord (myelotomy) after spinal cord injury (SCI) is a surgical treatment which
is mainly performed within 24 hours after SCI. However, many patients are fi rst seen outside the
established time window of 24 hours. Furthermore, little attention has been given to its effi cacy and
mechanism after 24 hours. In this study, dorsal longitudinal incision of spinal cord on SCI rats was
performed at 72 hours after SCI to remove the liquefi ed necrotic gray matter. The results indicated
that after myelotomy, locomotor function of hindlimbs signifi cantly improved from 21st day after SCI.
There was also increased residual white matter area at the rostral and caudal segments to the injury
center when examined at day 42 after the injury. These results suggested that myelotomy at 72 hours
after injury has protective effect on the spinal cord.
3.Functional Analysis of a Gene Encoding a Chlorotoxin-like Peptide Derived from Scorpion Toxin
Rui YANG ; Fang PENG ; Hui LIU ; Zhijian CAO ; Wenxin LI ; Xin MAO ; Dahe JIANG
Chinese Journal of Biochemistry and Molecular Biology 2005;21(1):19-23
A full-length cDNA sequence encoding for the precursor of a venom peptide (named BmKCT) with homology to chlorotoxin has been isolated from a cDNA library made from the venom glands of the Chinese Scorpion Buthus martensii Karsch. The sequence of BmKCT is similar (68 % identities) to that of chlorotoxin isolated from Leiurus quinquestriatus quinquestriatus. To understand the biological function of BmKCT, this peptide was expressed using pGEX expression system and purified using GST affinity column and gel filtration.Whole cell patch-clamping recording showed that BmKCT could significantly inhibit chloride currents of gliomas cells, and the inhibitory effect was reversible. These results suggested that BmKCT might belong to the class of short chain toxins blocking the chloride ion channels.
4.Analysis of histopathologic subtypes and CT characteristics of lung adenocarcinomas presenting as pure ground-glass nodule of 1 cm or less in maximal diameter
Fang WU ; Zulong CAI ; Shuping TIAN ; Xin JIN ; Rui JING ; Yueqing YANG ; Yingna LI ; Shaohong ZHAO
Chinese Journal of Radiology 2016;50(4):260-264
Objective To evaluate the correlations between CT features and histopathologic subtypes of lung adenocarcinomas presenting as pure ground-glass nodules (pGGN) of 1 cm or less in maximal diameter. Methods CT appearances, pathology and clinical data of 95 patients (97 lesions) who underwent curative resection of lung adenocarcinomas presenting as pGGN≤1 cm in diameter from March 2011 to February 2015 were retrospectively analyzed. Of the 97 lung adenocarcinomas, there were 19 atypical adenomatous hyperplasia (AAH) (19.6%), 31 adenocarcinoma in situ (AIS) (31.9%), 19 minimally invasive adenocarcinoma (MIA) (19.6%) and 28 invasive pulmonary adenocarcinoma (IPA) (28.9%). Fifty (51.5%) were preinvasive (AAH+AIS) and 47 (48.5%) were invasive (MIA+IPA). Lesion size and density were compared among pathologic subtypes using analysis of variance (ANOVA). Lesion size were compared between preinvasive and invasive lesions using 2?independent samples t?test. Lesion location, presence of bubble?like sign, air bronchogram, vessel changes, margin, and tumor?lung interface were compared among histopathologic subtypes using chi?square test. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the cut-off point of size in discriminating preinvasive lesions from invasive lesions. Results Of the 97 lesions, there were no statistically significant differences among histopathologic subtypes in terms of lesion density, presence of bubble?like sign, air?bronchogram, and margin (P>0.05). Mean size of AAH, AIS, MIA and IPA was (0.72 ± 0.19), (0.82 ± 0.14), (0.84 ± 0.11) and (0.85 ± 0.16) cm respectively. There were statistically significant differences among histopathologic subtypes in terms of lesion size (F=3.16, P=0.028). The vessel changes occurred in 2 of AAH, 11 of AIS, 10 of MIA and 17 of IPA. There were statistically significant differences among histopathologic subtypes in terms of vessel changes (χ2=13.22, P=0.004). Lesions with clear tumor?lung interface were in 10 of AAH, 24 of AIS, 17 of MIA, and 26 of IPA. There were statistically significant differences among histopathologic subtypes in terms of tumor?lung interface (χ2=12.67, P=0.005). The optimal cutoff value of lesion size for differentiating preinvasive lesions from invasive lesions was 0.82 cm (sensitivity, 61.7%;specificity, 62.0%). Conclusion Lesion size, vessel changes, and lung?tumor interface may indicate the invasiveness of lung adenocarcinoma presenting as pGGNs of≤1 cm in diameter.
5.Clinical analysis of 25 cases of autologous urological neoplasms in renal transplant recipients
Qing YANG ; Chengwu XIAO ; Linhui WANG ; Bing LIU ; Rui LUO ; Peng WAN ; Xin CHENG ; Yinhao SUN
Chinese Journal of Organ Transplantation 2012;33(7):397-399
Objective To summarize the clinical features,diagnosis and treatment of autologous urologic neoplasms in renal transplant recipients.Methods A retrospective analysis on the clinical data of 25 renal transplant recipients was done in our center.The onset time of new neoplasms was between 29 to 72 months after transplantation,with an average of 48.2 months.Intermittent hematuria was the first symptom in 23 patients,and the rest two cases were diagnosed through routine examination. The pathological diagnoses of thee cases were renal carcinoma,which were treated by transperitoneal laparoscopic radical nephrectomy.Eight cases were diagnosed as having renal pelvic tumor,which was treated by radical resection for the renal pelvic carcinoma.Fourteen cases were diagnosed as having bladder cancer,which was treated by transurethral resection of bladder tumor (13 cases) or radical cystectomy (one case).All patients were subjected to surgical treatment.The dosage of MMF,CSA/Tacrolimus was decreased to 1/2-2/3 of their original dosage. Sirolimus was used in place of calcineurin inhibitors in four patients.Immunosuppressive regimes and adjuvant therapy were given after surgery treatment.Results Twenty-five patients were followed up for 12-84 months.Contralateral renal carcinoma combined with lung and chest multiple metastases occurred in one case after radical nephrectomy,who died after targeted therapy 6 months later.Two patients with lymph node metastasis died 14 months and 20 months after surgery respectively.The rest 22 patients were closely followed up,whose creatinine remained 98-163μmol/L.Conclusion More attention should be paid to patients with hematuria after renal transplantation to screen the autologous urinary neoplasms.Patients should be treated with surgical procedures,and immunosuppressive regimens should be adjusted postoperatively.
6.Nutritional risk and nutritional support in gastrointestinal cancer surgical patients
Yu FANG ; Xiaowei XIN ; Yanli WANG ; Rui YANG ; Xianglong ZONG ; Xiaotian ZHANG
Chinese Journal of Clinical Nutrition 2011;19(6):368-371
ObjectiveTo investigate the prevalence of nutritional risk and perioperative nutritional support status in the gastrointestinal cancer surgical patients.Methods Adult inpatients from the gastrointestinal cancer surgery department of our hospital were consecutively enrolled from May to September 2010.Nutritional Risk Screening 2002 ( NRS 2002) was performed at admission,and data of the nutritional support and complications during hospitalization were collected.The relationship between nutritional risk and postoperative complications was analyzed.ResultsA total of 195 patients were eligible.At admission,43.6% (85/195) patients were at riskOf the patients at risk,totally 11.7% (10/85) patients received preoperative nutritional support,and 100% (85/85) patients received postoperative nutritional support; of the patients not at risk,no patients received preoperative nutritional support,and 84.5% (93/110) patients received postoperative nutritional support.The overall rates of postoperative complications were 19.1% ( 13/68 ) in the patients at risk while 7.1% (9/127 )in the patients not at risk ( P =0.02).ConclusionsNutritional risk in gastrointestinal cancer surgical patients was high.The application of nutritional support was inappropriate in these patients.The nutritional risk is associated with higher postoperative complications.Dissemination of evidence-based guidelines should be enhanced.
7.Preparation of herpetin lyophilized liposome and evaluation on its safety and pharmacodynamics.
Xin ZHANG ; Rui TAN ; Jian GU ; Li-Li HE ; Lei ZHANG ; Pu-Yang GONG
China Journal of Chinese Materia Medica 2014;39(16):3065-3068
In this study, the herpetin (HPT) lyophilized liposome was prepared, and its saftey and pharmacodynamics were evaluated. HPT lyophilized liposome was prepared by thin-film ultrasonication method. The lyoprotectant was optimized using particle size and encapsulation efficiency as indexes. Then, the influencing factors of HPT lyophilized liposome were investigated. In addition, preliminary safety and therapy efficiency of HPT lyophilized liposome to liver injury induced by CCl4 in the mice. The optimal lyoprotectant was 5% sucrose plus 5% lactose and the dispersed HPT lyophilized liposomes were spherical with the mean diameter of (107.0 ± 1.2) nm and the mean encapsulation efficiency of (99.7 ± 0.50)%. The lyophilized powder was sensitive to temperature, humidity and illumination. None of hemolysis, hemagglutination and vein irritation was observed after intravenous injection of HPT lyophilized liposomes into rabbits. HPT lyophilized liposome showed obviously therapy efficiency to liver injury induced by CCl4 in the mice. The improvements of ALT, AST and ALP were better than that in HPT free drug. The obtained HPT lyophilized liposome met the standard of CP with fine particle size and encapsulation efficiency after dispersion. The HPT lyophilized liposome showed good safety and enhanced the treatment efficacy of HPT. The HPT lyophilized liposome should be stored in low temperature, sealed condition far away from light.
Animals
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Chemistry, Pharmaceutical
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Cucurbitaceae
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chemistry
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Drug Carriers
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chemistry
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Drug Evaluation, Preclinical
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Drug Stability
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Drugs, Chinese Herbal
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adverse effects
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chemistry
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pharmacokinetics
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Liposomes
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chemistry
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Male
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Mice
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Mice, Inbred ICR
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Rabbits
8.Advances on pharmacokinetics of traditional Chinese medicine under disease states.
Zi-peng GONG ; Ying CHEN ; Rui-jie ZHANG ; Qing YANG ; Xiao-xin ZHU
China Journal of Chinese Materia Medica 2015;40(2):169-173
In recent years, more and more research shows that the pharmacokinetic parameter of traditional Chinese medicine can be affected by the disease states. It's possible that drug metabolic enzymes, transporters, cell membrane permeability and the change of microbes group could be interfered with physiological and pathological changes, which enables the pharmacokinetics of traditional Chinese medicine in the body to be altered, including the process of absorption, distribution, metabolism and excretion, and then the pharmacokinetic parameters of traditional chinese medicine are altered. It's found that investigating the pharmacokinetic of traditional Chinese medicine in the pathological state is more useful than that of in normal state because the great part of traditional Chinese medicine is mainly used to treat disease. This article reflects the latest research on the pharmacokinetic of traditional Chinese medicine in the disease state such as diabete, cerebral ischemia, liver injury, inflammatory disease, nervous system disorders and fever in order to provide certain reference for clinicians designing reasonable administration dose.
Animals
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Brain Ischemia
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drug therapy
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Chemical and Drug Induced Liver Injury
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drug therapy
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Humans
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Inflammation
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drug therapy
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Medicine, Chinese Traditional
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Nervous System Diseases
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drug therapy
9.Use of the covered Y-shaped metallic stent in the treatment of airway stenoses involving the lower trachea and the tracheal carina:preliminary clinical study
Rui-Min YANG ; Gang WU ; Xin-Wei HAN ; Fen-Bao LI ; Ming-Qiu ZHANG ;
Chinese Journal of Radiology 2001;0(09):-
Objective To describe a new kind of Y-shaped metallic stent delivery system and evaluate its feasibility and preliminary effect for managing multiple airway stenoses involving the lower trachea and the tracheal carina.Methods The Y-shaped metallic stent delivery system consisted of three- tier structure.The inner-tier was composed of four parallel guiding tubes,which was used for two guidewires and two threads passing through,the middle-tier was delivery catheter,which contained the four guiding tubes,and the outer-tier was introducer sheath.Under the fluoroscopic guidance,15 patients with multiple stenoses involving the lower trachea and the tracheal carina were treated with the new covered self-expandable Y-shaped metallic stents.Results Stent placement in the tracheo-bronchial tree was technically successful in all patients with obliteration of the dyspnea immediately after stent placement,and SaO_2 was increased form preoperative 75%—89% to postoperative 96%—99%.During follow-up a period of 3—58 weeks (M 22 weeks),all stenosis were resolved without stent-related complications,and the general physical of all 15 patents was improved with no occurrence of obviously dyspnea and bleeding.Karnofsky performance status(KPS)was improved from preoperative 26%—45% to postoperative 72%—95%.Five patients died of the following causes unrelated to stent insertion:multiple organ failure(n=3),cachexia(n=1)and pulmonary infection caused by gastrobronchial fistula(n=1),and the remaining 10 patients were alive with no evidence.of dyspnea at the time of this report.Conclusion Deployment of the covered Y-shaped metallic stent with the use of Y metallic stent delivery system in the management of airway stenoses involving the lower trachea and the tracheal earina was a simple and safe procedure and with a good short-term clinical efficacy.
10.Bone marrow mesenchyma l stem cells in Sprague-Dawley rat model of osteoarthritis
Yunpeng CUI ; Yongping CAO ; Heng LIU ; Xin YANG ; Zhichao MENG ; Rui WANG
Journal of Peking University(Health Sciences) 2015;(2):211-218
Objective:To investigate the efficacy of single time intra-articular different concentration of allogeneic bone marrow mesenchymal stem cells ( BM-MSCs ) injection in the treatment of Sprague-Dawley ( SD) rat model of osteoarthritis ( OA) .Methods: In the study, 32 SD rats were equally ran-domized into 4 groups:control group, high concentration group (1 ×107/mL BM-MSCs), low concentra-tion group (5 ×106/mL BM-MSCs) and high vs.low concentration group.The two knees of each rat were set up to a pair.The induction of OA was performed surgically randomly at one side in model group, and bilaterally in the other groups, which were through anterior cruciate ligament transaction ( ACLT) and medial meniscus excising.After the operation, the SD rats were allowed free movement.Four weeks later, different concentrations of allogeneic BM-MSCs isolated from the SD rats, expanded in vitro and suspended in phosphate buffered solution( PBS) were delivered in the articular cavity of both knees;PBS was used as the control.After injection, we excised the femoral nerve and sciatic nerve to disuse the low limb.The cartilage histological sections of knees were scored by Mankin scoring system to assess the se-verity of the pathology.mRNA of collagen Ⅱwas detected by real time polymerase chain reaction ( RT-PCR) .eGFP was detected by fluorescence microscope.Assessments were carried out 4 weeks after the operation in model group, and 3 weeks after injection in the other groups.Results:Mankin scores of the BM-MSCs side and control side were 6.60 ±0.40 vs.10.00 ±0.32 in low concentration group ( P<0.05), and 5.40 ±0.51 vs.9.60 ±0.51 in high concentration group (P<0.05).Mankin scores of high sv.low concentration group were 6.40 ±0.51 vs.7.60 ±0.75 (P>0.05).mRNA expression of collagen Ⅱ of the BM-MSCs side in low concentration group was 106%±1%in contrast to the control side.As in high concentration group it was 108%±1%, and 102%±1%in high vs. low concentra-tion group.Labeled BM-MSCs were detected unexpectedly in the synovial membrane but not in cartilage tissue three weeks from injection.Conclusion:BM-MSCs could promote cartilage repair and inhibit OA progression through a trophic mechanism.There was no difference between the two concentrations.