Objective To investigate the feasibility and safety of colorectal anastomosis using nickel titanium compression anastomosis ring (CAR).MethodsThe clinical data of 83 patients who received colorectal anastomosis at the First Affiliated Hospital of Fujian Medical University from May to December,2010 were prospectively analyzed.All patients were divided into CAR group (41 patients) and stapler group (42 patients) according to the random number table.The operation time,time to postoperative flatus and bowel movement,duration of hospital stay and the incidence of anastomosis-related complications of the 2 groups were observed.The time of extrusion of the rings and anastomotic healing of the CAR group were recorded.All data were analyzed by the t test or chi-square test.ResultsThe mean operation time of the CAR group and the stapler group were ( 122 ± 25) minutes and (128 ±30)minutes,respectively.The incidences of postoperative anastomotic fistula of the CAR group and the stapler group were 5％ (2/41) and 7％ (3/42),and the anastomotic fistula was cured by operation or conservative treatment.There were no significant differences in the mean operation time,time to postoperative flatus and bowel movement,duration of hospital stay and incidence of anastomotic fistula between the 2 groups (t =1.299,0.756,1.636,0.974,x2 =0.165,P ＞ 0.05 ).The rings were expelled within 9-14 days.The incidences of anastomotic stenosis of the CAR group and stapler group were 0 (0/41) and 2％ (1/42),with no significant difference between the 2 groups (x2 =0.988,P ＞ 0.05).The anastomotic stoma was smooth and well bealed in the CAR group,while nail residues and inflammatory polyp (1 patient) were found at the anastomosis stoma in the stapler group.ConclusionNickel titanium CAR is safe and effective in colorectal anastomosis.

Objective To observe the effects of tuina on muscle atrophy after denervation and on muscle satellite cell proliferation.Methods Ninety male rabbits with denervated skeletal muscles were randomly divided into a normal group,a control group,and a treatment group.Tuina was applied daily to the right gastrocnemius muscles beginning one day after the modeling.Changes in muscle wet weight ratio and the amount of skeletal muscle satellite cells (SCs) were observed 1,2 and 3 weeks and 1,2,4 and 6 months post-modeling.Results The muscle wet weight ratios of both the treatment group and the control group were lower than those of the normal group.The weight ratio in the treatment group was significantly different from that in the control group after 2 months (0.578 ±0.163 vs 0.470 ±0.062),4 months (0.575 ±0.110 vs 0.453 ±0.101) and 6 months (0.559 ±0.083 vs 0.446 ±0.048).The amount of SCs was also significantly different in the treatment and control groups after 1 week (16.83 ±5.31 vs8.67±2.58),2 weeks (51.83±7.94 vs32.00±6.93) and4 months (11.17±3.49 vs 17.67±4.18).Conclusion Tuina therapy can promote proliferation of satellite cells and delay the atrophy of denervated skeletal muscles.

Objective To observe the effects of the extract from daylily on the learning and memory in depression model rats, and to explore its possible mechanism. Methods Rats were randomly divided into control group, model group ( CUMS), the positive group (CUMS + fluoxetine) , high, medium and low dose group (stress + daylily extract in different doses), 12 rats in each group. The depression model was established by combining separation and chronic unpredictable stress. Body mass, open-field-test and sugar consumption experiment were used to evaluate the changes of behaviors in rats. And morris water Maze test was used to evaluate the ability of learning and memory. Results There was no statistically distinction between the rats of each group on weight and the behavioral indicator before modeling. Compared with the control group, the vertical movement,horizontal movement of open box test in the model group were reduced (P＜0.05 ) ,and sugar consumption and preference degree decreased (P<0.05 ).The target quadrant time, platform resident time, effective area residence time and crossing platform times in the water maze test of the model group was less than those of the control group. The daylily effect was evaluated at 0, 7, 14, 21, 28, 35, 42 days respectively post treatment. There were significant differences in depression behaviors between model group and daylily group(P＜0.05). And each indicator in the water maze test of the daylily group (high, medium dose) was more than that of model group (P ＜ 0. 05). Control group, model group, positive group, high, medium and low dose group, vertical movement scores were (41.83 ± 17.63; 8.14 ±4.23; 12.73 ±7.21; 23.17 ± 18.75; 8.38 ±3.46; 13.50 ±5.44); horizontal movement scores were (69.92 ±34.04; 28.33 ±20.36; 62.25 ± 15.72; 69.42 ±35.17 ; 49.08 ±32.85; 48.08 ±21.19). Conclusion Daylily may be partially work on the depression of rats, with some antidepressant effect, meantime,daylily can improve the ability of learning and memorizing of the depressed rats.

Objective To explore the pregnancy outcome and obstetric management of pregnancy and delivery after vaginal radical trachelectomy (VRT).Methods Forty-two cases of VRT from December 2003 to May 2012 in Peking Union Medical College Hospital were analyzed retrospectively.Among them ten cases got pregnant successfully.Results The average age of patient at VRT surgery was (30.6 ± 3.7) years old and average follow-up time was 29.5 months.There were 31 patients attempted conception.Ten of them got fourteen conceptions successfully.Overall conception rate was 45％ (14/31).There were four cases of first trimester abortion.Among them,two were miscarriage,two were elective abortion.There was one case of ectopic pregnancy operation and non of second trimester loss.Nine cases reached the third trimester.The total preterm delivery rate was 4/9.There were two cases delivered before 32 gestational weeks (2/9).Cesarean section was performed through a transverse incision in all of nine cases.No uterine rupture and postpartum hemorrhage occurred.All newborns had good outcomes.The average follow-up time after postpartum was 22.9 months.All cases were disease-free.Conclusions The conception rate of patients after VRT in our series is 45％.The preterm birth rate of pregnancy after VRT is higher.Routine cerclage of cervix during VRT procedure and pregnancy is not necessary.Cesarean section shortly after full term pregnancy through a transverse incision should be considered as a suitable and safe procedure.

Objective To analyze the clinical characteristics and assess the outcome of treatment for cervical cancer during pregnancy.Methods A cohort of 13 patients with cervical cancer diagnosed during pregnancy from January 2001 to September 2011 in Peking Union Medical College Hospital (PUMCH) was retrospectively studied.Clinical information,gestational age at diagnosis,treatment options and maternal and child outcomes were collected and analyzed.Results Thirteen patients out of 2030 cases of invasive cervical cancer were diagnosed during pregnancy with an incidence of 0.64％ (13/2030).The Mean gestational age at diagnosis of 13 patients is 21+6 weeks.Two cases were diagnosed during the first trimester,8 cases at second trimester and 3 cases at third trimester respectively.Vaginal bleeding during the pregnancy was main clinical manifestation presented in 8 patients and all thirteen cases were diagnosed by biopsy with pathological types of squamous cell carcinoma in 10 cases.The International Federation of Gynecology and Obstetrics (FIGO) stage was Ⅰ in eleven cases and stage Ⅱ in two cases.Six patients of them received treatment promptly after diagnosis.The other 7 patients had delayed treatment with mean diagnosis-treatment interval time of 65 days due to fertility reasons,who ended pregnancy by cesarean section at mean gestational age of 34+6 weeks,two of them received chemotherapy with cisplatin + fiuorouracil (PF)or cisplatin respectively before the end of the pregnancy,while the one with PF chemotherapy experienced neonatal death.The rest 6 neonatal outcomes were good.As follow-up of 13 cases:11 cases in stage Ⅰ received surgical treatment,and two of which had recurrence respectively,15 months and 7 months post surgery,and one case had died.One case of Stage Ⅱ patients died and one had recurrence after 53 months after radiotherapy.The recurrence rate in 13 cases was 3/13 and the mortality rate was 2/13.Conclusions Most cases of cervical cancer diagnosed during pregnancy were in early FIGO stage.For those patients diagnosed in late pregnancy with strong fertility demand,considering delayed treatment according to FIGO stage of the disease and fetus maturity is appropriate.Chemotherapy during pregnancy may cause neonatal complications.

Abstract: Traditional Chinese medicine (TCM) polysaccharides are active polysaccharides extracted from Chinese herbal medicines, many of which exhibit specific biological activities. Modern research has revealed that polysaccharide components extracted from plants, animals, and algae have a significant role in improving kidney injury. Currently, drug therapy is the primary treatment for kidney injury, with few reports on the use of TCM polysaccharides. This review explores the therapeutic effects and mechanisms of TCM polysaccharides on diabetic nephropathy, nephritis, kidney stones, hypertension-induced kidney injury, chemical toxin-induced kidney injury, and drug-induced kidney injury. Additionally, it discusses the prospects for the development of TCM polysaccharides in this field to provide a reference for further research.

Objective To investigate the prevalence and risk factor of Ofloxacin resistance among the tuberculosis patients in Shanghai.Methods Totally 447 isolates resistant to anyone of first-line drug (Isoniazid,Rifampicin,Streptomycin and Ethambutol) and 151 randomly selected isolates susceptible to all above drugs were collected from district tuberculosis(TB) hospitals in Shanghai during 2009 to 2010.All 598 isolates were subject to Ofloxacin sensitive test.Logistic regression analysis was conducted to determine risk factors of Ofloxacin resistance.DNA sequencing was applied to study the mutation characteristics in gyrA and gyrB among Ofloxacin resistant isolates.Results Seventy-two(16.1%) of the 447 drug-resistant isolates were found resistant to Ofloxacin,and the Ofloxacin resistant rate among multiple drug-resistant (MDR) isolates was 39.6%(44/111).Ofloxacin resistance was also found in 4(2.6%) of the 151 drug sensitive isolates.Logistic regression analysis showed that first-line drug-resistance MDR(resistant to at least rifampin and isoniazid) and poly-drug resistance(resistance to two or more first-line drugs but not MDR) had significant effect on Ofloxacin resistance(OR = 19.5、5.6,95% CI:6.4 - 59.4、1.7 - 18.1,all P＜ 0.05);re-treatment(OR = 2.3,95 % CI:1.2 -4.0,P＜ 0.05),and a higher age(OR = 1.03,95 % CI:1.0 1 - 1.05,P＜ 0.05)were also significantly associated with Ofloxacin resistance.Resistance mutations in the gyrA and gyrB genes were detected in 62 of 76(81.6%) isolates with phenotypic Ofloxacin-resistance. Conclusions The Ofloxacin resistance rate in Shanghai MDR-TB patients is significantly higher than the pan-susceptible TB patients.Risk factors of ofloxacin resistance are MDR,poly-resistant,retreated patients,age.Among them,MDR has the highest strength of association.

A hemodynamic model of capillary and tissue, in which tissue pressure changed with swing manipulation of Traditional Chinese Medical Massage (TCMM), is presented in this paper to explain the hemodynamic mechanism of swing manipulation. Blood flowed in capillary with low Reynolds number. Plasma exuded through capillary according to the Starling's Law. Tissue pressure changed linearly with the massage force measured. Blood apparent viscosity, plasma protein concentration and red cell's hematocrit were taken into account. Capillary flow rate, blood apparent viscosity, filtration rate and filtration fraction with dynamical change of tissue pressure were calculated numerically, and were compared with those in static tissue pressure condition. Results showed that, dynamical change of tissue pressure led to the increase of capillary flow rate and the decrease of blood apparent viscosity, which qualitatively explained the hemodynamic mechanism of "promoting blood circulation and removing blood stasis" in swing manipulation of TCMM.
Biomechanical Phenomena ; Blood Flow Velocity ; Blood Viscosity ; Capillaries ; physiology ; Hematocrit ; Hemodynamics ; Humans ; Massage ; Models, Cardiovascular ; Pressure ; Regional Blood Flow

During the development of bacteria-based biotechnology, bacteriophage infection is one of the constant threats and troublesome problems in industrial fermentation. The core of puzzled bacteriophage infection is a complex arm race of coevolution between bacteriophages and their hosts where bacteriophage has evolved lots of escaped ways against bacterial resistance mechanisms. The strategies of rationally designing factories and rotation of starter strains could reduce the risk of bacteriophage infection, but often fail to avoid. Genetic engineering to increase bacterial resistance is one of the strategies to prevent bacteriophage infection and more knowledge about bacteriophage and its host is needed. Recently, there are some new findings on bacterial resistance mechanisms which provide new solutions for bacteriophage infection. For example, it is possible for a rational design of resistant strains to use CRISPR-Cas based technologies just based on the sequences of bacteriophages. Moreover, it is also possible to avoid the escape of bacteriophage by iteratively building up resistance levels to generate robust industrial starter cultures. Quorum-sensing signal molecules have recently been proved to be involved in the interactions between bacteria and bacteriophages, which provides a possible way to solve bacteriophage infection from a population level. Finally, the rapid development of bacteriophage genome editing and synthetic biology will bring some new cues for preventing bacteriophage infection in industrial fermentation.