The experiment was done to explore the effect of sodium Tanshinone Ⅱ_A, sulfonat (STS) on myocardial reperfusion injury. Myocardial ischemia was induced with the occlusion of left anterior descending coronary artery lasting 30 minutes, and postischemic reperfusion persisted 30 minutes also. Fifty rabbits were randomly divided in to five groups: operative control group (group Ⅰ, n=10), myocardial ischemia group (group Ⅱ, n=10), myocardial ischemia and reperfusion group (group Ⅲ, n=10), receiving intravenous STS 5mg?kg~(_1) 5 mins before the reperfusion (group Ⅳ, n=10) and receiving intravenous STS 5mg?kg~(_1) 10 mins before the ischemia and 5 mins before the reperfusion respectively (group Ⅴ, n=10). As compared with those of group Ⅰ, the amount of myocardial malondialdehyde (MDA) increased significantly in group Ⅱ and Ⅲ (P0.05); the activity of myocardial superoxide dismutase (SOD) decreased in group Ⅲ(P0.05); the serum creatine kinase (CK) activity rose markedly in group Ⅱ, Ⅲ and Ⅳ (P0.05). In comparison with those of group Ⅲ, the amount of MDA reduced and activity of SOD increased in group Ⅳ and Ⅴ (P

In order to investigate in greater detail the two methods based on Hertz model for analyzing force-distance curve obtained by atomic force microscopy, we acquired the force-distance curves of Hela and MCF-7 cells by atomic force microscopy (AFM) indentation in this study. After the determination of contact point, Young's modulus in different indentation depth were calculated with two analysis methods of "two point" and "slope fitting". The results showed that the Young's modulus of Hela cell was higher than that of MCF-7 cell,which is in accordance with the F-actin distribution of the two types of cell. We found that the Young's modulus of the cells was decreased with increasing indentation depth and the curve trends by "slope fitting". This indicated that the "slope fitting" method could reduce the error caused by the miscalculation of contact point. The purpose of this study was to provide a guidance for researcher to choose an appropriate method for analyzing AFM indentation force-distance curve.
Actins ; Elastic Modulus ; HeLa Cells ; cytology ; Humans ; MCF-7 Cells ; cytology ; Microscopy, Atomic Force

BACKGROUND: There are less researches on the relationship of parents'feeding behavior with nourishing and developing status of infants.OBJECTIVE: To study the relationship between the parents' feeding behavior and the nourishing and developing status of infants.DESIGN: A cross-sectional study.SETTING: Center of Maternal and Children' s Health,the First Hospital of Xi'an Jiaotong University.PARTICIPANTS: The study was carried out during January to December in 2002,at the Center of Maternal and Children' s Health,The First Hospital of Xi'an Jiaotong University. A total of 346 infants,aged 0 to 18 months old,were selected from the Fuping county and Chengcheng county of Weinan area by using the stratified duster sampline method. Inclusive criteria: infants with the gestation period between 37 to 42 weeks,without obvious diseases,no congenital abnormality; Exclusive criteria: infants with congenital disease or abnormality. Totally 324 infants,who were in accordance with the above criteria,were divided into 5 groups according to their month age.METHODS: The nursing persons of the infants were called at their houses,and the self-designed "Investigation Tables on Infant's Nutrition"were filled out.MAIN OUTCOME MEASURES: ① Status of slight malnutrition of infants of different month ages; ② Status of nutrition and development of infants,within 4 months, with different feeding behaviors; ③ Effects of beginning time,quality and frequency of complementary food on the nourishing and developing status of infants.RESULTS: In the first 4 months after birth,the rate of breast-feeding was high and the nourishing status of the infants was good. But the nourishing and developing status of infants became comparatively worse after 4 months age,because of inappropriate complementary food. As compared the slight malnutrition infants with normal infants,there were significant differences in the beginning time and kinds of complementary food(P<0.01).CONCLUSION: There is close relationship of the feeding behaviors with the nourishing and developing status of the infants.

Objective: Immunoglobulin A nephropathy (IgAN) is one of the most common types of kidney disease, and kidney transplantation is the most effective treatment for end-stage renal disease. This study aims to analyze the clinical curative effect of renal transplantation for adults with IgAN and to discuss the efficacy and safety of kidney transplantation for IgAN at the perioperative period and medium- and long-term follow-up. Methods: This retrospective study included the clinical and follow-up data of 81 adult patients with IgAN who underwent kidney transplantation at the Second Xiangya Hospital, Central South University from January 2018 to January 2022. Of the 81 patients whose age at (34.1±9.9) years old, 47 (58.0％) were male. The body mass index was (20.8±3.2) kg/m2, and the human leukocyte antigen (HLA) mismatch number was 3.5±1.2. The estimated glomerular filtration rate (eGFR) and daily 24-hour urine output for the recipients on the 1st, 5th, and 7th day after kidney transplantation and when they were discharged were analyzed. The recovery of the transplanted kidney and occurrence of complications were comprehensively evaluated. The eGFR, urinary protein, and occult blood were evaluated at the 6th, 12th, 24th, 36th, and 48th month and at the last follow-up. Results: The follow-up time was (25.7±15.8) months. No primary non-function occurred in any patient during the perioperative period time. Fifty-one (63.0％) patients had immediate graft function recovery, and 16 (19.8％) patients had slow graft function recovery. Delayed recovery of graft function was observed in 14 (17.3％) patients. A total of 19 perioperative complications occurred, including 9 patients with acute rejection, 5 patients with urinary fistula, 1 thrombosis in both lower limbs, and 4 lymphatic fistula. The eGFR at 6th, 12th, 24th, 36th, and 48th month of follow-up were (65.3±22.9), (67.6±23.0), (64.3±21.8), (65.9± 24.7), and (68.7±31.2) mL/(min·1.73 m2), respectively. The eGFR remained high during the medium- and long-term follow-ups. At the longest follow-up of 56 months, eGFR fluctuation was still mild, and the positive rate of urine protein and occult blood was low. IgAN recurred in 4 transplanted kidneys, accounting for 4.94％ of the total patients, without severe renal insufficiency. Three patients had kidney dysfunction due to severe pneumonia, rejection, and stone in the transplanted kidney. The overall survival rate of the transplanted kidney was higher than 95％, and the survival rate of all patients was 100％ till Januray 2022. Conclusion: Renal transplantation for adults with IgAN had a remarkable short-term effect. The recipients can be beneficial significantly to favorable midium- and long-term outcomes. IgAN recurrence is infrequent and rarely causes severe renal function damage.

The effect of living kidney transplantation between identical twins is satisfied, but it is rarely reported. From October 2019 to February 2021, two recipients received kidney transplantation from their twin sisters in the Second Xiangya Hospital of Central South University. The primary disease of the two recipients was acute glomerulonephritis in 1 case and diabetic nephropathy in 1 case. Two recipients received tacrolimus/cyclosporine+ mortemycophenol ester+ methylprednisolone after surgery. The patients were followed up for 3.0 and 1.5 years, respectively, with renal function recovering well.

Objective:To explore the clinical efficacy of adult donor dual kidney transplantation.Methods:Retrospective analysis of case data of 13 adult donor kidney dual kidney transplantation (DKT) performed in the The Second Xiangya Hospital of Central South University from September 2016 to December 2020. For 13 donors, the average age and BMI were (53.5±12.4)years and (24.3±2.8) kg/m 2, respectively. Their mean Serum creatinine (SCr) at admission and before procurement was (132.9±54.1)and (228.7±112.4)μmol/L, respectively. 3 of them had diabetes mellitus history, and 8 had hypertension history. 11 met the United Network for Organ Sharing (UNOS) DKT criteria and 6 met Remuzzi score DKT criteria. For 13 recipients, the average age and BMI were (39.3±8.9)years and (20.2±2.4)kg/m 2, respectively. All of them received ABO blood type-matched kidney transplants. 2 of them had their grafts transplanted in the bilateral iliac. In 12 cases, the grafts filled rapidly and urinated immediately when opening blood flow. In 1 case, the grafts were dark in color and vascular showed weak pulsation after opening blood flow. The time to recovery of perioperative graft function (from the day of surgery to the natural reduction of SCr to the normal range 44-133μmol/L), the occurrence of delayed graft function (DGF), acute rejection (AR), ureteral and surgical incision complications, as well as the recipients’ final follow-up SCr, eGFR, urinary protein, and grafts outcome were observed. Risk factors affecting outcomes were assessed by univariate logistic regression analysis. Results:The SCr dropped to the normal range at discharge in 10 recipients, and the average recovery time was (13.8±13.0) days. In other 3 cases SCr at discharge were 300.0, 149.0, 152.5μmol/L. 4 cases had DGF, 4 had AR, 1 experienced urinary fistula, and 1 experienced incisional dehiscence, which were treated with anti-rejection, J-tube implantation, continuous catheterization to maintain bladder void, secondary suturing, respectively. The follow-up time ranged from 4 to 54 months, with a median of 28(15.5, 31.0) months. At the final follow-up time, 10 cases had good graft function, 2 suffered impaired kidney function, and 1 experienced graft failure. The average SCr and eGFR except for graft failure patient were (144.2±101.3)μmol/L and (52.9±21.2)ml/min, respectively. 4 had positive urine protein. Univariate logistic regression analysis showed that donor age, BMI, history of diabetes mellitus and hypertension, and SCr were not significantly correlated with recipients’ DGF and graft impairment ( P>0.05), and due to the small sample size, multifactorial logistic regression analysis was not performed. Conclusion:The short to medium-term effects of adult donor DKT coule be safe and feasible.