Objective To evaluate the association between cervical insufficiency(CI)and spontaneous preterm birth(SPB),and to investigate the predictive value of shear wave elastography(SWE),cervical length(CL),and anterior cervical angle(ACA)in identifying SPB resulting from CI.Methods This study recruited 786 pregnant women who attended prenatal outpatient clinics or were hospitalized for treatment at the Affiliated Hospital of Nantong University and the Maternity Hospital affiliated with Jiangnan University from June 2023 to January 2024.Among these participants,723 were full-term pregnancies and 63 were preterm pregnancies.Cervical SWEI,CL,and cervical ACA were measured using a Mindray Resona R9 Pro/Eagus R9s ultrasound device equipped with shear wave elasticity imaging software.Additionally,the participants were categorized into four gestational age groups:19-23+6 weeks,24-27+6 weeks,28-33+6 weeks,and 34-36+6 weeks,to evaluate the relationship between gestational age and ultrasound parameters.Results The mean CL in the preterm group was 25.4 mm,significantly shorter than the 29.7 mm observed in the full-term group(P<0.001).The ACA in the preterm group was 121°,which was significantly higher than the 99° in the full-term group(P<0.001).Additionally,SWE values were significantly lower in the preterm group compared to the full-term group at all measured cervical sites:anterior external os(AE)6.47 kPa versus 9.91 kPa(P<0.001),anterior internal os(AI)10.98 kPa versus 18.62 kPa(P<0.001),posterior internal os(PI)11.32 kPa versus 21.09 kPa(P<0.001),and posterior external os(PE)8.16 kPa versus 13.24 kPa(P<0.001).A significant negative correlation was found between CL and gestational age(r=-0.278,P=0.001).The combined predictive indicators demonstrated high accuracy and specificity for predicting preterm birth,with an area under the curve(AUC)of 0.952,sensitivity of 95%,and specificity of 86%.Conclusions The integration of cervical SWE,CL measurement,and assessment of the angle of ACA can substantially enhance the predictive accuracy for SPB due to CI.This multimodal approach offers clinicians a more robust and precise tool for identifying high-risk pregnancies,enabling timely interventions that can reduce the incidence of preterm birth and improve maternal and neonatal outcomes.

Objective To evaluate the association between cervical insufficiency(CI)and spontaneous preterm birth(SPB),and to investigate the predictive value of shear wave elastography(SWE),cervical length(CL),and anterior cervical angle(ACA)in identifying SPB resulting from CI.Methods This study recruited 786 pregnant women who attended prenatal outpatient clinics or were hospitalized for treatment at the Affiliated Hospital of Nantong University and the Maternity Hospital affiliated with Jiangnan University from June 2023 to January 2024.Among these participants,723 were full-term pregnancies and 63 were preterm pregnancies.Cervical SWEI,CL,and cervical ACA were measured using a Mindray Resona R9 Pro/Eagus R9s ultrasound device equipped with shear wave elasticity imaging software.Additionally,the participants were categorized into four gestational age groups:19-23+6 weeks,24-27+6 weeks,28-33+6 weeks,and 34-36+6 weeks,to evaluate the relationship between gestational age and ultrasound parameters.Results The mean CL in the preterm group was 25.4 mm,significantly shorter than the 29.7 mm observed in the full-term group(P<0.001).The ACA in the preterm group was 121°,which was significantly higher than the 99° in the full-term group(P<0.001).Additionally,SWE values were significantly lower in the preterm group compared to the full-term group at all measured cervical sites:anterior external os(AE)6.47 kPa versus 9.91 kPa(P<0.001),anterior internal os(AI)10.98 kPa versus 18.62 kPa(P<0.001),posterior internal os(PI)11.32 kPa versus 21.09 kPa(P<0.001),and posterior external os(PE)8.16 kPa versus 13.24 kPa(P<0.001).A significant negative correlation was found between CL and gestational age(r=-0.278,P=0.001).The combined predictive indicators demonstrated high accuracy and specificity for predicting preterm birth,with an area under the curve(AUC)of 0.952,sensitivity of 95%,and specificity of 86%.Conclusions The integration of cervical SWE,CL measurement,and assessment of the angle of ACA can substantially enhance the predictive accuracy for SPB due to CI.This multimodal approach offers clinicians a more robust and precise tool for identifying high-risk pregnancies,enabling timely interventions that can reduce the incidence of preterm birth and improve maternal and neonatal outcomes.

Objective:To investigate the clinical characteristics and prognosis of acute myeloid leukemia (AML) patients with positive TLS-ERG fusion gene.Methods:The clinical data of 9 AML patients with positive TLS-ERG fusion gene in the First Hospital of Jilin University from June 2013 to August 2020 were retrospectively analyzed, and the relevant literature was reviewed.Results:Among 9 patients with positive TLS-ERG fusion gene, there were 5 males and 4 females, with a median age of 16 years old (6-40 years old). Five patients received chemotherapy alone, 3 patients received allogeneic hematopoietic stem cell transplantation (allo-HSCT), and 1 patient did not receive systematic treatment. Among 8 patients with systematic treatment, 1 patient had complete remission after the first induction chemotherapy and 5 patients had complete remission after induction therapy. The median overall survival time of 5 patients with chemotherapy alone was 1.5 months (1-11 months), of which 3 patients did not respond to the first course of treatment and died of infection, and 2 patients died after relapse. The median overall survival time of 3 patients with allo-HSCT was 16 months (13-17 months), of which 2 patients died after relapse and 1 patient had sustained molecular complete remission by the end of follow-up.Conclusions:AML with positive TLS-ERG fusion gene has low incidence rate and poor induction efficacy. Hematopoietic stem cell transplantation may partially improve the survival prognosis of patients, but it cannot overcome the adverse effect of positive TLS-ERG fusion gene on prognosis.

Objective: To investigate the efficacy and safety of IA regimen which contains idarubicin (IDA) 8 mg/m², 10 mg/m² or 12 mg/m² as induction chemotherapy for adult patients with de-novo acute myeloid leukemia (AML) . Methods: A total of 1 215 newly diagnosed adult AML patients, ranging from May 2011 to March 2015 in the First Affiliated Hospital of Soochow University and other 36 clinical blood centers in China were enrolled in the multicenter, single-blind, non-randomized, clinical controlled study. To compare the response rate of complete remission (CR) , adverse events between different dose idarubicin combined with cytarabine (100 mg/m²) as induction chemotherapy in newly diagnosed patients of adult AML. Results: Of 1 207 evaluable AML patients were assigned to this analysis of CR rate. The CR rates of IDA 8 mg/m² group, IDA 10 mg/m² group and IDA 12 mg/m² group were 73.6% (215/292) , 84.1% (662/787) and 86.7% (111/128) , respectively (P<0.001) . After adjusted for age, blast ratio of bone marrow, FAB classification and risk stratification, the odds ratios (95% CI) of IDA 10 mg/m² group and IDA 12 mg/m² group were 0.49 (0.34-0.70) and 0.36 (0.18-0.71) , as compared with the IDA 8 mg/m² group (P<0.001, P=0.003) . In the intermediate and favorable groups, CR rates was 76.5% (163/213) , 86.9% (506/582) and 86.1% (68/79) in different doses of IDA (P=0.007) . Interestingly, IA regimen with IDA 10 mg/m² was the only beneficial factor affecting CR in this group after adjusted for age, blast ratio of bone marrow and FAB classification[OR=0.47 (95% CI 0.31-0.71) , P<0.001]. CR rates in adverse group was 50.0% (18/36) , 60.6% (43/71) and 81.8% (18/22) respectively (P=0.089) . However, the odds ratios (95% CI) of IDA 12 mg/m² when compared with the IDA 8 mg/m² was 0.22 (0.06-0.80) , after adjusted for age, blast ratio of bone marrow and FAB classification. The median time (days) of neutrophil count less than 0.5×10⁹/L in IDA 8 mg/m² group, IDA 10 mg/m² group and IDA 12 mg/m² group were 14 (11-18) , 15 (11-20) and 18 (14-22) , respectively (P=0.012) and of platelet count lower than 20×10⁹/L were 14 (7-17) , 15 (11-20) and 17 (15-21) , respectively (P=0.001) . The incidences of lung infection in the three groups were 9.8%, 13.5% and 25.2%, respectively (P<0.001) . Conclusions For young adult patients (aged 18-60 years) with AML in China, intensifying induction therapy with idarubicin 10 mg/m² is clinically superior to IDA 8 mg/m² and IDA 12 mg/m² in favorable intermediate AML subgroup. However, idarubicin 12 mg/m² is more suitable to adverse AML subgroup.

Cerebrovascular disease is one of the main diseases that threaten human health and life,and the age of onset become younger and younger. Research shows that Toll-like receptors (TLRs) express in brain, have effects on neurons, play an important role in the occurrence and development of cerebral ischemia and secondary cerebral injury.It is clear that TLR2, TLR3, TLR4, TLR7 and TLR9 have influence on occurrence and development of cerebral ischemia. This is crucial for understanding the relationship between immune inflammation and nerve regeneration, and improving clinical treatment.

Objective:To study the expression of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in oral leukoplakia for clarifying the role of oxidative DNA damage in the development of oral leukoplakia. Methods:Immunofluorescence labeling method was used to examine the expression of 8-oxodG,a marker of oxidative DNA damage,and the expression of tumor suppressor gene, P53 protein in oral epithelium of normal oral mucosa and biopsy specimens of leukoplakia. Results:In specimens of oral leukoplakia, HE staining showed infiltration of inflammatory cells, hyperkeratosis and epithelial dysplasia. Immunofluorescence labeling study demonstrated that the accumulation of 8-oxodG apparently increased in the oral epithelium of patients with leukoplakia,whereas little or no immunoreactivity was observed in normal oral mucosa. Expression of P53 protein was also observed in oral epithelium of patients with oral leukoplakia. The immunoreactivity of 8-oxodG and P53 was stronger in patients with oral leukoplakia than that in normal oral mucosa (P<0.01) . Moreover,the immunoreactivity increased with the development of disease (r=0.773, P<0.01) . Conclusions:The oxidative DNA damage contributes to the development of oral leukoplakia. 8-oxodG may be a risk predictive marker for oral leukoplakia.

In order to find microRNA associated with HBV infection and to explore the mechanism of the infection, first of all, we found in our preliminary study that in HepG2 cells transfected with HBV expression plasmid, miR-122 expression was up-regulated, suggesting that miR-122 was related to the HBV infection. On this basis, in the present study, miR-122 and pCH9-HBV1.1 plasmid were cotransfected into HepG2 cells. Southern blot detection result showed that miR-122 can inhibit HBV replication. Using MiRanda computer software, HBx was predicted to be the target sequence of miR-122; Luciferase reporter gene system and Western blot detection of HBx protein expression changes were further used to verify the HBx expression regulated by miR-122. And finally, it can be speculated that miR-122 may affected HBV replication by regulating the expression of HBx.
Gene Expression Regulation, Viral ; drug effects ; Hep G2 Cells ; Hepatitis B virus ; drug effects ; genetics ; physiology ; Humans ; MicroRNAs ; genetics ; Trans-Activators ; genetics ; metabolism ; Transfection ; Virus Replication