Objective Given the significant differences of ischemia-time tolerance observed in clinical heart transplantation between heart and other solid organs,it is important to make a clinical assessment of the correlation between the cold ischemic time of the donor heart and the survival rate after heart transplantation.With these results,we may standardize the management of clinical heart transplantation by providing a proper heart cold ischemic time frame for reference.Method The clinical data of 131 orthotopic heart transplantation patients in our hospital,from September 2008 to March 2014,were collected and analyzed retrospectively.All donor hearts were preserved in histidinetryptophan-ketoglutarate solution (HTK solution) during cold ischemic time.The cold ischemia time was 103-485 min,with an average of 245.2 ± 120.4 min.According to the cold ischemic time,all patients were divided into three groups:＜ 3 h (n =62); 3-6 h (n =41); ＞6 h (n =28).Result (1) Prolonged cold ischemia time could result in high IABP usage perioperatively (postoperative IABP support rate for the three groups was 3.2％,9.8％ and 14.3％ respectively,P =0.155) and high rejection rate (incidence of rejection was 6.4％,9.8％ and 17.9％ respectively,P =0.245),but there was no statistically significant difference.(2) Three weeks after the transplantation,all EF values of the three groups were reduced within the normal range,with no significant difference.Perioperative overall survival rate was 97.7％ (128/131),while survival rate of the three groups was 97.29％ (72/74),100％ (30/30) and 96.29％ (26/27),respectively (P =0.61).(3) One-year overall survival rate was 89.87％ (71/79),and the one-year survival rate of three groups was 92.2％ (47/51),90.9％ (10/11) and 82.4％ (14/17) respectively (P=0.51).Fifty-two patients were still under 1 year follow-up period.This study aimed to illustrate the effect of different cold ischemic time on perioperative cardiac function,rejection rate,IABP usage postoperatively (intra-aortic balloon pump or intra-aortic balloon counterppulsation) and early/mid-term efficacy after transplantation.Conclusion Cold ischemic time within 6-8 h is clinically safe for heart transplantation,and can provide satisfactory early and medium-term effect.Donor heart with cold ischemia time longer than 6 h may extend the recipient inclusion criteria.But considering the safety of transplantation,these donor hearts may be more applicable for the marginal recipients.This study describes the relationship between cold ischemic time and early and medium-term effect of heart transplantation.However,its long-term effects still require further investigation.

Objective To determine the frequency of T helper type 22 (Th22) cells and expression level of interleukin-22 (IL-22) in peripheral blood of patients with psoriasis vulgaris,and to investigate their relationship with disease severity and clinical course.Methods Peripheral blood samples were obtained from 40 patients with psoriasis vulgaris and 30 healthy human controls.Five-color flow cytometry was performed to determine the percentage of Th22 cells in peripheral blood,and enzyme-linked immunosorbent assay (ELISA) to measure the expression of serum IL-22.Statistical analysis was carried out by t test and Pearson correlation analysis.Results Both the percentage of Th22 cells and serum level of IL-22 in peripheral blood were significantly higher in patients with psoriasis vulgaris than in healthy human controls (Th22 cells:0.65％ ± 0.48％ vs.0.33％ ± 0.15％,t =3.89,P ＜ 0.01; IL-22:(67.96 ± 14.32) vs.(40.59 ± 9.91) ng/L,t =9.45,P ＜ 0.01).Further more,Th22 cell percentage and IL-22 serum level in peripheral blood were both positively correlated with psoriasis area and severity index (PASI) in these patients (r =0.38,0.94,P ＜ 0.05 and 0.01,respectively),but neither of them correlated with clinical course of psoriasis vulgaris (r =0.20,0.10,respectively,both P ＞ 0.05).Conclusions The percentage of Th22 cells and level of IL-22 are increased in peripheral blood of patients with psoriasis vulgaris,and both of them are correlated with disease severity.

Objective To study the expression of WWOX and C-JUN in keloid and to approach their role and mechanism in the pathogenesis of keloid.Methods Immunohistochemical SP methods were used with computer pathological image analysis.Western blot and reverse transcription polymerase chain reaction (RT-RCR) were performed to detect the expression of WWOX and C-JUN in keloid and normal skin with statistical analysis.Results In keloid,the expression of WWOX protein was located in the cytoplasm of fibroblasts,and the expression of WWOX protein and its mRNA decreased,with significantly statistical difference (P＜0.05) compared to normal skin in the control group; the expression of C-JUN protein was located in the cell nucleus and cytoplasm of fibroblasts,with increased expression of C-JUN protein and its mRNA,with significantly statistical difference (P＜0.05) in comparison to normal skin in the control group.The expression of both was negative correlation (r=-0.626,P＜0.01).Conclusions Both WWOX with low expression and C-JUN with high expression are keloid-related genes,having significantly negative correlation between them,which may be one of the mechanisms for the keloid formation.It indicates that the WWOX protein may be an inhibitory factor to the expression of C-JUN protein,and the genes may play a major role in the pathogenesis of keloiod through fibroblasts.

AIM To speculate the hypoglycemic mechanism for rats with type 2 diabetes by exploring the therapeutic effects of leaf aqueous extract from Cyclocarya paliurus on liver insulin receptor (InsR) and insulin receptor substrate 2 (IRS-2).METHODS The diabetic rat model was established through intraperitoneal injection of streptozotocin and fed with high-fat diet.The moleled rats were equally assigned into the control group and leaf aqueous extract from Cyclocarya paliurus group (extract group).After the test extract was orally administrated for four weeks,body weight,urine output,food intake,water intake and fasting blood-glucose (FBG) were measured,and the levels of serum insulin,InsR and IRS-2 mRNA in liver tissue were investigated in rats.RESULTS Compared with the control group,the extract group showed a reduction in urine output,food intake,water intake,FBG and insulin levels.Meanwhile,the rats' body weights in extract group were presented a trend to increase.The gene expressions of InsR and IRS-2 in liver tissue were up-regulated.Moreover,the insulin sensitivity was improved.CONCLUSION The leaf aqueous extract from Cyclocarya paliurus can reduce FBS,improve insulin sensitivity,which may be associated with the increase of InsR and IRS-2 gene expression in liver tissue.

OBJECTIVETo study the dynamic changes of dry material accumulation and platycodin D content in Platycodon grandiflorum in different planting densities.

METHODFive different planting densities M1 (4 cm x 25 cm), M2 (6 cm x 25 cm), M3 (8 cm x 25 cm), M4 (10 cm x 25 cm) and M5 (12 cm x 25 cm) were designed in the plot experiment. The individual and colony biomass accumulation, dry material distribution, root yield and platycodin D content were measured in different stage.

RESULTIn a certain density range the individual biomass in P. grandiflorum obviously declined with increasing density with the exception of biomass M2 > biomass M3. On the contrary, the colony biomass increased with the increasing density. Dry material accumulation in each organ in P. grandiflorum in different planting densities showed significance (P<0.05). The dry material distribution in organs in the different planting densities showed significance (P<0.05), and the dry material distribution in flower and fruit reached the minimal level in M2, in the same planting density the distribution in root reached the maximal; The dry material in stem, flower and fruit obviously declined with the increasing density, while the dry material in leaf increased. The individual root output increased with the increasing density, and it reached the highest in M2. The colony root yield increased with the increasing density. The platycodin D content in P. grandiflorum reached the highest in M2.

CONCLUSIONThe result showed that a suitable planting density is very important to P. grandiflorum dry material accumulation and distribution, root yield, platycodin D content and colony yield.

Plant Structures ; growth & development ; metabolism ; Platycodon ; growth & development ; metabolism ; Saponins ; metabolism ; Seasons ; Triterpenes ; metabolism

Objective To summarize the surgical strategies of orthotopic cardiac transplantation for congenital dextrocardia .Methods Three patients with congenital dextrocardia suffered from endstage heart failure and underwent orthotopic cardiac transplantation from March 2014 to September 2017 .They were aged 10 ,29 ,13 years respectively .Donor hearts were from brain death donors and procured with extra length on inferior vena cava , aorta and pulmonary artery tissues . After cardiectomy , left atrial-atrial anastomosis was performed initially between donor ' s left-upper pulmonary vein orifices and recipient's left-lower pulmonary vein orifices .Apex was orientated at a 90 degrees' clockwise to right . Then aorta ,inferior and superior vena cava and last pulmonary artery were anastomosed continuously . The prosthetic conduits were also used owing to a lack of tissue . Results All operations were successful . The cold ischemic time was (130-375 ) (251 .00 ± 122 .53) min ,cardiopulmonary bypass time (127-212 )(179 .67 ± 55 .72 ) min and aortic clamp time (38-105 ) (65 .33 ± 35 .166) min . Two patients had stable hemodynamics and recovered well after HTx .During a follow-up period of 1 .5-3 .5 years , echocardiography showed excellent cardiac functions without blood flow obstruction . Chest radiology showed well-placed donor heart in right mediastinum .One left-sided patient with total cavopulmonary connection before HTx died at 59 days after HTx because of pneumonia and multiple organ failure .Conclusions Heart transplantation is curative for patients with congenital dextrocardia and surgical strategies are the key factor of successful treatment .

Objective:To describe the epidemiological characteristics and trends of leukemia incidence in Qidong between 1972 and 2021, and provide guidelines for prevention and control measures and strategies.Methods:The cancer registry data was collected and analyzed on leukemia incidence during 1972—2021 in Qidong by sex, age and time. Crude incidence rate (CR), China age-standardized rate (ASRC), world age-standardized rate (ASRW), and average annual change percentage (AAPC) was calculated by Joinpoint software. Age-period-cohort (APC) model was used to analyze the influence of age, period and birth cohort on the changes in the incidence trend of leukemia patients.Results:From 1972 to 2021, there were 2 948 patients with leukemia in Qidong, accounting for 2.00% of all cancer new cases, CR of leukemia was 5.26/10 5, ASRC was 4.34/10 5, ASRW was 4.35/10 5. The truncated incidence of 35—64 years old was 5.29/10 5, the cumulative incidence rate between the ages of 0 and 74 years old was 0.40%, the cumulative risk was 0.40%. There were 1 608 male patients, the CR, ASRC, and the ASRW were 5.81/10 5, 4.88/10 5 and 4.85/10 5. The number of female patients were 1 340, and the CR, ASRC, and the ASRW were 4.71/10 5, 3.86/10 5 and 3.91/10 5, respectively. Temporal trends indicated significant upward trends in ASRC among both gender, males and females with AAPC values of 1.41% ( P＜0.001), 1.15% ( P＜0.001), and 1.73% ( P＜0.001), respectively. The results of the APC model showed that the average net drift value of leukemia incidence in all age groups was 1.57% (95% CI, 1.24%-1.89%), and the highest value of local drift was 3.20% (95% CI, 1.63%-4.78%) in the 80~ years old group. The incidence of leukemia increased with age. With the passage of time, the risk of leukemia incidence increased gradually compared with the rate ratio of leukemia incidence (risk ratio [ RR], 1.00) in 1992—1996, the RR of leukemia incidence increased from 0.70 during 1972—1976 to 1.57 during 2017—2021. The later the cohort was born, the greater the risk of leukemia incidence compared with the relative risk of leukemia incidence ( RR, 1.00) in 1952—1956 cohort, the RR of leukemia incidence increased from 0.24 in the 1892—1896 cohort to 2.73 in the 2017—2021 cohort. Conclusions:The incidence of the leukemia has presented a rising trend in the past fifty years. Leukemia incidence increased with age, and the period and cohort effects on the risk of incidence increase. Further research is needed to investigate the risk factors related to leukemia.

Objective:To investigate the effects of ubiquitin-specific protease (USP) 7/47 inhibitor (Cat. No. 1247825-37-1) on the proliferation and apoptosis of acute myeloid leukemia (AML) cells with or without internal tandem duplications of the Flt3 gene (Flt3-ITD). Methods:ATP assay was used to detect the effects of 1247825-37-1 on the cell viability of two AML cell lines (MOLM13 and MV4-11) harboring Flt3-ITD mutation and one AML cell line (THP-1) without Flt3-ITD mutation as well as the primary Flt3-ITD-mutant and non-mutant AML cells from patient samples. Flow cytometry was used to detect the apoptosis of AML cell lines treated by different concentrations of 1247825-37-1.Results:Compared with the control group, 1247825-37-1 was able to significantly inhibit the proliferation of MOLM13, MV4-11 and THP-1 cells ( P<0.000 1). Besides, the cell viability of primary AML cells was also inhibited by 1247825-37-1, and a stronger inhibitory effect on non-mutant AML cells was observed. The USP7/USP47 inhibitor 1247825-37-1 could inhibit the proliferation of AML cells in a dose-dependent manner and a low dose (2 or 4 μmol/L) of 1247825-37-1 would be effective. Moreover, 1247825-37-1 was also able to efficiently induce the apoptosis of above AML cell lines in a dose-dependent manner. Conclusions:The USP7/USP47 inhibitor 1247825-37-1 significantly inhibits the proliferation of AML cells with or without Flt3-ITD mutation.

Objective:To describe the epidemiological characteristics and trends of leukemia incidence in Qidong between 1972 and 2021, and provide guidelines for prevention and control measures and strategies.Methods:The cancer registry data was collected and analyzed on leukemia incidence during 1972—2021 in Qidong by sex, age and time. Crude incidence rate (CR), China age-standardized rate (ASRC), world age-standardized rate (ASRW), and average annual change percentage (AAPC) was calculated by Joinpoint software. Age-period-cohort (APC) model was used to analyze the influence of age, period and birth cohort on the changes in the incidence trend of leukemia patients.Results:From 1972 to 2021, there were 2 948 patients with leukemia in Qidong, accounting for 2.00% of all cancer new cases, CR of leukemia was 5.26/10 5, ASRC was 4.34/10 5, ASRW was 4.35/10 5. The truncated incidence of 35—64 years old was 5.29/10 5, the cumulative incidence rate between the ages of 0 and 74 years old was 0.40%, the cumulative risk was 0.40%. There were 1 608 male patients, the CR, ASRC, and the ASRW were 5.81/10 5, 4.88/10 5 and 4.85/10 5. The number of female patients were 1 340, and the CR, ASRC, and the ASRW were 4.71/10 5, 3.86/10 5 and 3.91/10 5, respectively. Temporal trends indicated significant upward trends in ASRC among both gender, males and females with AAPC values of 1.41% ( P＜0.001), 1.15% ( P＜0.001), and 1.73% ( P＜0.001), respectively. The results of the APC model showed that the average net drift value of leukemia incidence in all age groups was 1.57% (95% CI, 1.24%-1.89%), and the highest value of local drift was 3.20% (95% CI, 1.63%-4.78%) in the 80~ years old group. The incidence of leukemia increased with age. With the passage of time, the risk of leukemia incidence increased gradually compared with the rate ratio of leukemia incidence (risk ratio [ RR], 1.00) in 1992—1996, the RR of leukemia incidence increased from 0.70 during 1972—1976 to 1.57 during 2017—2021. The later the cohort was born, the greater the risk of leukemia incidence compared with the relative risk of leukemia incidence ( RR, 1.00) in 1952—1956 cohort, the RR of leukemia incidence increased from 0.24 in the 1892—1896 cohort to 2.73 in the 2017—2021 cohort. Conclusions:The incidence of the leukemia has presented a rising trend in the past fifty years. Leukemia incidence increased with age, and the period and cohort effects on the risk of incidence increase. Further research is needed to investigate the risk factors related to leukemia.

Objective: To investigate the clinical effect and safety of entecavir capsules in the treatment of treatment-naïve HBeAg-positive patients with chronic hepatitis B (CHB). Methods: A total of 158 HBeAg-positive CHB patients were given oral entecavir capsules at a dose of 0.5 mg/time once a day for 144 weeks. Clinical outcome and safety were evaluated at baseline and at 24, 48, 72, 96, 120, and 144 weeks of treatment respectively. The Fisher’s exact test was used for the analysis of categorical data. Results: After 144 weeks of treatment, 90.91% of all patients achieved virologic response (< 69 IU/ml), the normalization rate of alanine aminotransferase was 88.18%, the clearance rate of HBeAg was 33.33%, and the seroconversion rate of HBeAg was 24.07%. Of all patients, 2 dropped out due to adverse events and 5 experienced serious adverse reactions. Conclusion Entecavir capsules can inhibit viral replication and have good safety in treatment-naïve HBeAg-positive CHB patients.