Objective To identify the metabolites of loganin in rat urine through using ultra high performance liquid chromatography combined with triple TOF mass spectrometry (UPLC-Q-TOF/MS/MS) after oral administration of loganin;To summarize the metabolic pathway of loganin. Methods Rats were given a gavage with loganin. The urine samples were prepared by use of solid phase extraction (SPE). The chromatographic separation was performed on an UPLC C18 column with gradient elution program of acetonitrile and 0.1% formic acid aqueous as mobile phase. Dynamic background subtraction (DBS) technology was employed to trigger information dependent acquisition (IDA) to obtain the characteristic fragment ions of metabolites. Results MetabolitePilot software including several data processing methods were employed to speculate the structures of liganin metabolites and three metabolites were identified. Then, the metabolic pathway of loganin in rats was summarized. Conclusion The analytical method was simple, credible and highly-sensible, which is useful for screening and identifying trace constituents in vivo.

ObjectiveTo evaluate the role of nitric oxide (NO) in ischemia reperfusion injury (IRI) and acute rejection (AR) of intestinal transplantation in rats.MethodsThe rat orthotopic intestinal transplantation was performed. Animals were assigned to the following 4 groups with random methods:transplant control group,L-arginine (L-Arg) group,NG-Nitro-L-arginine methyl ester (L-NAME) Ⅰ group (group Ⅰ ) and L-NAME Ⅱ group (group Ⅱ ).The rats in different group were given saline,L-Arg (150 mg· kg-1 · d-1 ),L-NAME (4 and 8 mg· kg-1 · d-1 ) injection respectively from the operative day.The recipient survival time was observed.The pathologic changes were observed by HE staining.The activity of nitric oxide synthases (NOS) was measured by using immunohistochemistry.The abilities of glucose absorption and serum NO levels were tested.Results The recipient survival timein transplant control group,L-Arg group,group Ⅰ and group Ⅱ were (11.7 ± 1.2),(10.2 ± 1.0),( 12.3 ± 1.5) and ( 17.3 ± 1.9) days respectively,and the survival in group Ⅱ was prolonged significantly (P＜0.01).As compared with control group,the Park scores in L-Arg group and group Ⅰ were reduced,and IRI were attenuated; the Park score in group Ⅱ was increased (P＜0.01),the IRI was aggravated,but the AR was attenuated.As compared with control group,during the IRI period,the iNOS staining in group Ⅰ was decreased,and both iNOS and nNOS staining in group Ⅱ was decreased; during the AR period,the iNOS staining in group Ⅱ was decreased obviously.The serum NO levels were increased gradually in all groups.As compared with control group,the increase of serum NO level in group Ⅱ was delayed.As compared with control group,the glucose absorption levels in L-Arg group were increased significantly from 30 min after reperfusion to POD-3 (P＜0.01),and the postoperative glucose absorption levels in groups Ⅰ and Ⅱ maintained the low levels.ConclusionNO may play a dual role as both cytotoxic and cytoprotective effects in IRI,and aggravate mucosal damage in AR in rats intestinal transplantation.The glucose absorptive capacity of graft is promoted by supplementation of LArg at early postoperative period.

Objective To explore the influence of modified Lawrence's reconstuction procedures following total gastrectomy for gastric cancer to alimentation of patients. Methods Retrospective analysis of nutritional status and symptoms of digestive tract in 76 patiens of total gastrectomy for gastric cancer while 3 and 6 month after modified Lawrence's reconstuction procedure. Results Examination was given in 48 patients 3 month after operation. Emptying time of barium was 60-100 min, barium meal backflowing to esophagus was not observed in all patients when they were in erect or decubitus position, no sign of narrow of anastomotic stoma. The hemoglobin, total protein, body weight and food-intake of patients 3 or 6 months after operation was as same as them before operation. Conclusion The patients undergoing this reconstuction procedure will recover normal food habits soon after operation, Lawrence's reconstuction procedures is a satisfactory choice in patients of total gastrectomy for gastric cancer because of its safety and convenient.

Objective To evaluate the effect and clinical value of open surgery combined ultrasound-guided Mammotome in the treatment of multiple breast lumps. Methods Four hundred and forty-four patients in our hospital from Jan. 2006 to Jun. 2008 were divided into 3 groups, who underwent classical open surgery, ultrasound-guided Mammotome operation, or combined therapy respectively and followed by post-operation visits reguarly. The operation effects were compared between the 3 groups. Results Compared with the classical open surgery, combined therapy had no difference in time of procedure and procedural bleeding, but had lower incidence of local skin, better incision condition and higher satisfaction of patients. Compared with ultrasound-guided Mammotome operation, combined therapy took less time in procedure, and in the same time had less procedural bleeding, lower post-operation complication and higher patients satisfaction. Conclusions Combined therapy has high complete removal rate, low post-operation complication as well as cosmetic effect. It has special advantages over the other two kinds of surgery, so it has wide clinical application.

The experiment was conducted between February 2004 and May 2006 at The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang province, China. Forty hybrid pigs were used in the experiment, 20 were used as donors and the other 20 were used as recipients. Donor operation: Abdominal aorta was lavaged in situ with 500 mL 4℃ heparinized saline (lavage pressure 7.8-9.8 kPa), intestinal canal cut from donor was conserved in 4℃ physiological saline.Recipient operation: Orthotopic small intestine transplantation and heterotopic small intestine transplantation were conducted according to exploring results, and abdominal cavity was washed with 40-45℃ physiological saline until the flush out liquid became warm.Periprocedural management: Preoperative discussion and postoperative discussion were done, and body temperature of pigs was monitoring and controlled. Early-stage feeding was used, 4 pigs could drink water freely after transplantation and took food normally at the second day, while other 16 pigs began to drink water 2 days after transplantation. Evaluation after the operation: No experimental animal had anastomotic leakage after taking food. Sixteen pigs survived over 7 days, average 9 days, the longest over 14 days. The success rate of the small intestine transplantation is 80% (16/20). Failure reasons: One with phlebothrombesis, one with blood loss and two with unknown reasons. Results showed that experience of periprocedural management had got relatively satisfactory effects through a great quantity of small intestine transplantation practices.

Objective To evaluate the effect of ultrasound-guided vacuum-assisted minimal invasive resection(Mammotome procedure)of breast lumps through the retromammary space. Methods Seven hundred and eighty-seven patients in Obstetrics and Gynecology Hospital Affiliated to Fudan University from Jan. 2011 to May 2012 were underwent ultrasound-guided Mammotome operation through the retromammary space (retromammary space group,385 cases),or adjacent the lumps,and followed by post-operation visits regularly (Mammotome operation adjacent the lumps group,402 cases). The operation effects were compared between the two groups. Results All cases were followed up for 12 months. The period of Mmmotome operation through the retromam mary space and the rate of resection were(48 ± 6)min and(52 ± 4)min,99. 48%(383 / 385), 99. 25%(399 / 402),perspectively,in group of Mammotome operation through the retromammary space and Mammotome operation adjacent lumpsand. There was no significant difference between the two groups( P> 0. 05). The amount of procedural bleeding,the incidence of ecchymosis,local hematoma and the number of incision in group of Mammotome operation through the retromammary space were(8 ± 3)ml,2. 34%(9 / 385), 0. 52%(2 / 385),(1. 3 ± 0. 6)respectively,which were significantly lower than those in Mammotome operation adjacent the lumps group((14 ± 6)ml,8. 71%(35 / 402),2. 74%(11 / 402),(2. 4 ± 0. 3)respectively). There were statistical difference between two groups( P = 0. 003,P < 0. 001,P = 0. 001,P = 0. 006). The rate of satisfaction in group of Mammotome operation through the retro-mammary space was 98. 70%(380 / 385),which is significantly higher than in group of Mammotome operation adjacent the lumps(89. 30%(359 / 402),P< 0. 01). Conclusion The therapy approach of ultrasound-guided Mammotome operation through the retromammary space has lower hemorrhagic complication,as well as the better effect with special advantages. Therefore it has prospective clinical application.

Objective To explore the effect of occupational skills relearning programme on hemiplegic arm motor function and ac-tivities of daily living(ADL)in stroke patients. Methods From February,2022 to August,2023,74 stroke patients in Guangdong Work Injury Rehabilitation Hospital were enrolled and randomly divided into control group(n=37)and experimental group(n=37).The control group received conventional rehabilitation training,and the experimental group received additional occupational skills relearning programme,for three weeks.They were assessed with Fugl-Meyer Assessment-Upper Extremi-ties(FMA-UE),Functional Test for the Hemiplegic Upper Extremity-Hong Kong(FTHUE-HK),Motor Activity Log(MAL)-amount of use(AOU)and MAL-quality of movement(QOM),modified Barthel Index(MBI),and Stroke Impact Scale(SIS)-Hand and SIS-ADL before and after treatment. Results The scores in all assessments improved significantly in both groups(|t|>3.597,P<0.05)after treatment,while the scores of FMA-UE,FTHUE-HK,MAL-AOU,MAL-QOM were higher in the experimental group than in the control group(|t|>2.352,P<0.05). Conclusion Occupational skills relearning programme could promote the recovery of hemiplegic arm motor and activity,and facilitate the use of the hemiplegic arm in daily life in stroke patients.