Objective:To investigate the risk factors of postoperative recurrence of parastomal hernia repair.Methods:The clinical and follow-up data of 128 patients undergoing parastomal hernia repair at the the Central Hospital of Wuhan, Tongji Medical College of Huazhong University of Science and Technology from Jan 1, 2013 to Dec 31, 2022 was analyzed retrospectively.Results:Postoperative recurrence was confirmed in 32 patients during follow-up, and the recurrence rates were 13.8% , 24.8% and 25.0% at 1',3' and 5 years .Univariate analysis showed that body mass index (BMI) , chronic obstructive pulmonary disease (COPD), type of stoma, prophylactic stoma displacement, and surgical options were the risk factors for recurrence after parastomal hernia repair. Multiple Logistic regression analysis showed that BMI, COPD, prophylactic stoma displacement, and surgical options were independent risk factors for the recurrence after parastomal hernia ( P< 0.05). Conclusion:The occurrence of hernia recurrence after parastomal hernia repair is closely related to patients' BMI, COPD, prophylactic stoma displacement and the surgical options.

Objective To evaluate the molluscicidal effect of 50% wettable powder of niclosamide ethanolamine salt (WPNES) against Oncomelania hupensis on the soil surface and inside the soil layer by immersion method in winter. Methods O. hupensis snails were placed on the soil surface and 2, 5 cm and 10 cm under the soil layer outdoors in winter, and then immersed in 50% WPNES at concentrations of 1 mg/L and 2 mg/L for 1, 3 d and 7 d, while dechlorinated water served as controls. Snail mortality was observed following immersion with 50% WPNES on the soil surface and inside the soil layer. Results Following immersion with 50% WPNES at concentrations of 2 mg/L and 1 mg/L outdoors in winter, the 3-day corrected snail mortality rates were 98.0% and 76.0% on the soil surface, and the 7-day corrected snail mortality rate was both 100.0%. Following immersion with 50% WPNES at concentrations of 2 mg/L and 1 mg/L outdoors in winter, the 7-day corrected snail mortality rates were 95.5% and 85.6% 2 cm below the soil layer, 66.0% and 6.4% 5 cm below the soil layer. However, the 7-day snail mortality rate swere comparable between the 50% WPNES treatment group (at 2 mg/L and 1 mg/L) and controls 10 cm below the soil layer (both P > 0.05). Conclusion Immersion of 50% WPNES at a concentration of 2 mg/L for 7 days presents a high molluscicidal efficacy against O. hupensis on the soil surface and 5 cm within the soil layers in winter.

Nano-LC MS/MS was used to analyze trypsin digested deer-hide gelatin(DHG) samples, hydroxylation and O-glycosylation on lysine sites of DHG were comprehensive identified by using PEAKS Studio software. The sites, sorts and amounts of hydroxylation and O-glycosylation on Type Ⅰ collagen α1 chain(COL1 A1) and α2 chain(COL1 A2) of DHG were revealed. As a result, 5 284 peptides were identified from DHG samples, which were mainly from COL1 A1 and COL1 A2. Among these peptides, there were 449 peptides with hydroxylysine, 442 with galactosyl-hydroxylysine, 449 with glucosyl-galactosyl-hydroxylysine. The major modified sites of hydroxylation and O-glycosylation in DHG were shown as follow: α1-9 N and α2-5 N in N-telopeptides, α1-87, α1-174, α1-930, α2-87, α2-174, α2-933 in triple helix domain, and α1-16 C in C-telopeptides. These hydroxylation and O-glycosylation were correlated with the formation and stability of collagen molecules and collagen fibrils. It is feasible for the collagens and peptides dissolving from deer skin collagen fibrils under high temperature and pressure decocting, high temperature and pressure also might destroy inter-molecular covalent cross-linking and help those glycol-peptides formations. The present study provided ideas and strategies for the in-depth investigation on DHG chemical constituents, and showed good theoretical significance and application value.
Animals ; Deer/metabolism* ; Gelatin ; Glycosylation ; Hydroxylation ; Lysine/metabolism* ; Protein Processing, Post-Translational ; Tandem Mass Spectrometry

Tripterygium wilfordii multiglycoside (GTW) is a commonly used compound for the treatment of rheumatoid arthritis (RA) and immune diseases in clinical practice. However, it can induce liver injury and the mechanism of hepatotoxicity is still not clear. This study was designed to investigate GTW-induced hepatotoxicity in zebrafish larvae and explore the mechanism involved. The 72 hpf (hours post fertilization) zebrafish larvae were administered with different concentrations of GTW for three days and their mortality, malformation rate, morphological changes in the liver, transaminase levels, and histopathological changes in the liver of zebrafish larvae were detected. The reverse transcription-polymerase chain reaction (RT-PCR) was used to examine the levels of microRNA-122 (miR-122) and genes related to inflammation, apoptosis, cell proliferation and liver function. The results showed that GTW increased the mortality of zebrafish larvae, while significant malformations and liver damage occurred. The main manifestations were elevated levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), significant liver atrophy, vacuoles in liver tissue, sparse cytoplasm, and unclear hepatocyte contours. RT-PCR results showed that the expression of miR-122 significantly decreased by GTW; the mRNA levels of inflammation-related genes il1β, il6, tnfα, il10, cox2 and ptges significantly increased; the mRNA level of tgfβ significantly decreased; the mRNA levels of apoptosis-related genes, caspase-8 and caspase-9, significantly increased; the mRNA level of bcl2 significantly decreased; the mRNA levels of cell proliferation-related genes, top2α and uhrf1, significantly reduced; the mRNA levels of liver function-related genes, alr and cyp3c1, significantly increased; and the mRNA level of cyp3a65 significantly decreased. In zebrafish, GTW can cause increased inflammation, enhanced apoptosis, decreased cell proliferation, and abnormal expression of liver function-related genes, leading to abnormal liver structure and function and resulting in hepatotoxicity.
Animals ; Apoptosis ; Chemical and Drug Induced Liver Injury/genetics* ; Inflammation/genetics* ; Trans-Activators ; Tripterygium ; Zebrafish/genetics* ; Zebrafish Proteins

Objective:Pin1 plays an important role in the pathogenesis of cardiovascular disease,our study aims to investigate the effects of Pin1 silencing by siRNA on H9c2 apoptosis induced by hypoxia/reoxygenation.Methods:H9c2 cells were cultured and subjected to a hypoxia/reoxygenation (H/R) condition in vitro,mimicking ischemic/reperfusion injury in vivo.The mRNA and protein expression of Pin1 were detected by RT-qPCR and Western blot.H9c2 cells were divided into control group,H/R group,H/R+Pin1 siRNA group,H/R+scramble siRNA group.MTT and flow cytometry with Annexin V-FITC/PI staining were respectively performed to detect cell viability and apoptosis.The expression of Bax and Bcl-2 were measured by Western blot.The activity of Caspase-3 was detected by automatic biochemistry analytic instrument.Results:The mRNA and protein levels of Pin1 were highly expressed in the cells of H/R group.Transfection with Pin1 siRNA strikingly inhibited the expression of Pin1.Compared with H/R group,Pin1 siRNA markedly increased cell viability,decreased the cell apoptosis and the Caspase-3 activity.Furthermore,the increased Bcl-2,decreased Bax and the ratio of Bcl-2 to Bax were observed in Pin1 siRNA group (P<0.05) compared with H/R group.Conclusion:Downregulation of Pin1 protects hypoxia/reoxygenation-injured H9c2 cells from apoptosis,which is possibly through the upregulation of Bcl-2 and downregulation of Bax and Caspase-3 activity.

OBJECTIVETo investigate the role of long non-coding RNA growth arrest-specific transcript 5 (lncRNA-GAS5) in breast cancer progression and epithelial-mesenchymal transition (EMT) of the cancer cells.

METHODSReal-time quantitative PCR (qRT-PCR) was used to detect the expression of lncRNA-GAS5 in 37 pairs of breast cancer and adjacent non-tumor tissues and in parental MCF-7 cells and paclitaxel-resistant MCF-7 (MCF-7/PR) cells, and the correlation of lncRNA-GAS5 expression with the clinical stage and lymph node metastasis of breast cancer was investigated. The expressions of the genes related with cell cycle and EMT at both the mRNA and protein levels were detected using qRT-PCR, Western blotting and immunohistochemistry. The changes in the biological behaviors and morphology of breast cancer cells with either lncRNA-GAS5 knockdown or overexpression were observed. Nude mouse models were established bearing breast cancer xenografts derived from MCF-7/PR cells or MCF-7/PR cells over-expressing lncRNA-GAS5, and the inhibitory effect of paclitaxel on tumor growth was evaluated.

RESULTSThe transcriptional levels of lncRNA-GAS5 were significantly lower in breast cancer tissues than in the adjacent non-tumor tissues (P<0.05), and decreased lncRNA-GAS5 expression was significantly correlated with TNM stage and lymph node metastasis of breast cancer (P<0.05). lncRNA-GAS5 expression was also significantly lowered in paclitaxel-resistant breast cancer cells and showed a positive correlation with P21 expression and a negative correlation with CDK6. MCF-7 cells during EMT presented with a lowered expression of lncRNA-GAS5, whereas lncRNA-GAS5 over-expression strongly suppressed MCF-7/PR cell migration and invasion, and increased the susceptibility of the cells to paclitaxel. In the tumor-bearing nude mouse models, lncRNA-GAS5 overexpression in the tumor cells obviously enhanced the inhibitory effect of paclitaxel on tumor growth and lung metastasis by reversing the EMT marker proteins.

CONCLUSIONA decreased expression of lncRNA-GAS5 promotes lung metastasis of breast cancer by inducing EMT, suggesting the potential of lncRNA-GAS5 as a therapeutic target in breast cancer.

Objective To investigate the preoperative management and the clinical effeciency of Lichtenstein tension-free hernioplasty in adult patients with inguinal incarcerated hernia.Methods Clinical data of 86 patients with inguinal incarcerated hernia were analyzed retrospectively.Hernia was repaired with Lichtenstein tension free after reposition.Results There were 59 male patients and 27 female patients with median age of (63 ± 18) years.There were 8 patients with liver cirrhosis.The operation was performed successfully in all patients.Segmental bowel resection with end-to-end anastomosis was performed in 38 emergency cases.Operative time was 20-120 min,with an average time of 54 min.The postoperative hospitalization was 5-17 d,with an average of 8 d.There were 7 cases of skin ecchymosis at the scrotum,there were no intestinal perforation,hepatic encephalopathy and upper gastrointestinal hemorrhage after operation.In early series of 24 cases without drainage tube left in place,there were 10 cases of fat liquefaction,10 cases of hydrops of hernial sac,6 cases of seroma and 3 cases of wound infection after operation.After 12 to 48 months of follow-up,there was no mortality after 2 years,no hernia recurrence.Conclusions Tension free repair in the treatment of incarcerated inguinal hernia is safe and feasible.

OBJECTIVETo evaluate the feasibility of three-dimensional pseudo-continuous arterial spin label (3D pCASL) non-contrast enhanced perfusion imaging applied to head and neck tumors in high-field MR and detect the effects of different postlabeling delay (PLD) time on image quality and the reliability of repeated measurements of tumor blood flow (BF) in different 3D pCASL groups.

METHODSIn this prospective study,all the 25 patients received neck 3D pCASL non-contrast enhanced perfusion examinations in a 3.0 T MR system by using an 8-channel head and neck joint coil. Conventional T1-weighted (TIWI) and T2-weighted imaging (T2WI) were performed firstly. Finally,three 3D pCASL with different PLD time [ASL1(PLD1=1525 ms),ASL2 (PLD2=2025 ms), ASL3(PLD3=2525 ms)] were acquired. Patients' perfusion-weighted images acquired from different 3D pCASL sequences underwent the analysis of signal to noise ratio (SNR) and contrast noise ratio (CNR) for tumors. Two observers performed the qualitative assessments on spiral artifacts and vascular artifacts of perfusion-weighted images from different 3D pCASL sequences. Blood flow (BF) of tumors from different 3D pCASL sequences were measured by the two observers respectively for the first time and by observer 2 for the second time.

RESULTSSeventeen enrolled patients (age:50.1 ± 12.7 years,M/F=10:7) with histopathologic.

RESULTSunderwent the evaluation of image quality and measurements of BF values. The SNRs and CNRs of ASL1,ASL2, and ASL3 showed a descending trendency. SNRs (P=0.011) and CNRs (P=0.009) of ASL1 were significant higher than those of ASL3. There was no significant difference of scores of spiral artifacts among the three ASL groups (P=0.932). The scores of vascular artifacts of ASL1,ASL2,and ASL3 showed a descending trendency,also. And scores of ASL1 was significant higher than that of ASL3(P=0.000). The intraclass correlation coefficient (ICC) of intre-and intraobserver were high (ICC>0.9). Although the BF values of ASL1,ASL2, and ASL3 showed an ascending trendency,there was no significant difference among the three groups (P=0.977).

CONCLUSIONSThe 3D pCASL no-contrast enhanced perfusion MR imaging can be used for head and neck tumor. The image quality of perfusion weighted images and reliability of BF measurements were satisfied. The 3D pCASL series with PLD of 1525 ms and 2025 ms have better image quality than PLD of 2525 ms. And BF values do not show significant statistic difference among the three groups. Therefore, 3D pCASL series with PLD of 1525 ms and 2025 ms are more suitable for the perfusion imaging of head and neck tumors

Artifacts ; Female ; Head and Neck Neoplasms ; Humans ; Image Enhancement ; Imaging, Three-Dimensional ; Magnetic Resonance Angiography ; Male ; Middle Aged ; Prospective Studies ; Reproducibility of Results ; Signal-To-Noise Ratio ; Spin Labels

This study was aimed to investigate the serologic characteristics, genetic background and population distribution of B2 and AB2 subtype in Chinese ABO blood group. The classic blood group serological technology was used to detect ABO blood group of the propositus and their family members, the anti-B1 serum prepared by yourself was used to investigate the distribution of B1/B2 and AB1/AB2 subtype of the blood donor. The results indicated that the antigen of propositus was AB2 subtype and that of his child was B2 subtype. The anti-B1 antibody was detected in blood serum of propositus; the antigen of 3 from 2318 blood donors with B blood group were found to be B2 subtype, the antigen of 2 from 826 blood donors with AB blood group were found to be AB2 subtype. The investigation on propositus and the 3 B2 blood donor families showed that B2 antigen displays genetic characteristics of blood group. It is concluded that B2/AB2 subtype is from family inheritance, while B2 subtype is amounted to 0.129% in B blood group, and AB2 subtype is amounted to 0.224% in AB blood group.
ABO Blood-Group System ; classification ; genetics ; immunology ; Blood Grouping and Crossmatching ; China ; Female ; Genetics, Population ; Humans ; Male ; Middle Aged

OBJECTIVETo investigate changes in proliferative activity of myoblasts in skeletal muscle and potential role of phosphorylated Akt on it, so that a better understanding in mechanisms of skeletal muscle atrophy after burn injury will be got.

METHODSOne hundred and twenty Wistar rats were randomly divided into 2 groups: control and severe thermal injury group. Rats in severe thermal injury group were subjected to a 40% total body surface area full-thickness scald injury, and Tibialis Anterior (TA) muscles were collected on 0, 1, 4, 7, 10, 14 days post-injury. After muscle mass determined, immunohistochemical double staining was used for detection of Proliferative Cell Nuclear Antigen (PCNA) of myoblasts. Protein expression of total Akt and phosphorylated Akt was determined by Western Blot.

RESULTSBurn injury induced significant reduction of TA muscle mass and maximal reduction of it appeared by 4 days after injury (P < 0.01). Proliferative activity of myoblasts decreased significantly from the first day post-injury (P < 0.01) and increased slowly to basal level of controls after 7 days post-injury. The phosphorylated Akt was undetectable in both of controls and injured samples before 4 days but increased significantly after 7 days post-injury (P < 0.01), though total Akt expression had no significant alteration at any time points (P > 0.05).

CONCLUSIONSDecrease in proliferative activity of myoblasts may be one of the contributors of significant atrophy of skeletal muscle after burn injury. Effect of phosphorylated Akt on proliferation attenuated in early stage and increased significantly in later stage after burn injury may partly explain the changes in proliferative activity of myoblasts.

Animals ; Burns ; metabolism ; pathology ; Cell Proliferation ; Disease Models, Animal ; Male ; Muscle, Skeletal ; metabolism ; pathology ; Myoblasts ; metabolism ; pathology ; Phosphorylation ; Proto-Oncogene Proteins c-akt ; metabolism ; Random Allocation ; Rats ; Rats, Wistar