Objective:To qualitatively and quantitatively compare and evaluate the application of the Fast BLADE sequence and the conventional BLADE sequence in 3T magnetic resonance (MR) liver T2-weighted imaging (T2WI).Methods:A total of 72 patients who underwent liver MR examination at the Chongqing People′s Hospital from December 2023 to July 2024 were selected. All patients underwent liver magnetic resonance imaging (MRI) scanning using a 3T MR scanner, including both the Fast BLADE sequence and the conventional BLADE sequence. The total imaging time of the two sequences was recorded. Two observers used a " 5-point scale" to evaluate the overall image quality, motion artifacts, and radial artifacts of the Fast BLADE and conventional BLADE sequences respectively, and measured the image signal-to-noise ratio (SNR) at the same spatial position in the two groups of images. Statistical analysis was used to evaluate the differences in imaging time and image quality between the Fast BLADE sequence and the conventional BLADE sequence in liver T2WI imaging.Results:The imaging time of the Fast BLADE sequence in liver T2WI imaging was significantly shorter than that of the conventional BLADE sequence ( P<0.01), and the image SNR was significantly higher than that of the conventional BLADE sequence ( P<0.01). The overall image quality, motion artifact reduction, and radial artifact reduction of the Fast BLADE sequence were all superior to those of the conventional BLADE sequence (all P<0.05). The Kappa coefficients for the consistency of the two observers′ evaluations on overall image quality, motion artifacts, and radial artifacts were 0.78, 0.66, and 0.71 respectively. Conclusions:The Fast BLADE sequence can shorten the imaging time and provide images with higher SNR, and thus can replace the conventional BLADE sequence for liver T2WI imaging.

Objective:To qualitatively and quantitatively compare and evaluate the application of the Fast BLADE sequence and the conventional BLADE sequence in 3T magnetic resonance (MR) liver T2-weighted imaging (T2WI).Methods:A total of 72 patients who underwent liver MR examination at the Chongqing People′s Hospital from December 2023 to July 2024 were selected. All patients underwent liver magnetic resonance imaging (MRI) scanning using a 3T MR scanner, including both the Fast BLADE sequence and the conventional BLADE sequence. The total imaging time of the two sequences was recorded. Two observers used a " 5-point scale" to evaluate the overall image quality, motion artifacts, and radial artifacts of the Fast BLADE and conventional BLADE sequences respectively, and measured the image signal-to-noise ratio (SNR) at the same spatial position in the two groups of images. Statistical analysis was used to evaluate the differences in imaging time and image quality between the Fast BLADE sequence and the conventional BLADE sequence in liver T2WI imaging.Results:The imaging time of the Fast BLADE sequence in liver T2WI imaging was significantly shorter than that of the conventional BLADE sequence ( P<0.01), and the image SNR was significantly higher than that of the conventional BLADE sequence ( P<0.01). The overall image quality, motion artifact reduction, and radial artifact reduction of the Fast BLADE sequence were all superior to those of the conventional BLADE sequence (all P<0.05). The Kappa coefficients for the consistency of the two observers′ evaluations on overall image quality, motion artifacts, and radial artifacts were 0.78, 0.66, and 0.71 respectively. Conclusions:The Fast BLADE sequence can shorten the imaging time and provide images with higher SNR, and thus can replace the conventional BLADE sequence for liver T2WI imaging.

Objective:To explore the pregnancy outcomes of frozen-thawed embryo transfer (FET) after antibiotic treatment in patients with recurrent implantation failure (RIF) and chronic endometritis (CE).Methods:A retrospective cohort study was conducted to analyze 496 women with RIF undergoing hysteroscopy and endometrial biopsy before the next FET in Reproductive Medicine Center of Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology from January 2018 to December 2021. According to the pathological results of endometrial biopsy and subsequent treatment, the patients were divided into cured CE group (strong positive CD138 was converted to negative after antibiotic treatment, n=103), suspected CE group (weak positive CD138, n=76), non-CE group (negative CD138, n=230) and control group (hysteroscopy and diagnostic only, no CE-related histopathological screening, n=85). The pregnancy outcomes after FET were compared among the four groups. Results:The prevalence of CE in the patients with RIF was 25.5% (105/411), and the sensitivity of hysteroscopy for the diagnosis of CE was 55.2% and the specificity was 83.0%. The conversion rate of patients with CE was 86.7% (91/105) after 1 cycle of antibiotic treatment and 98.1% (103/105) after 2 cycles of treatment. After removing the confounding factors of age, ovarian reserve function, number of previous transfer cycles, number and type of embryos transferred in FET cycle, and number of high-quality embryos, multivariate regression analysis showed that the clinical pregnancy rate of the cured CE group improved significantly after antibiotic treatment ( OR=1.841, 95% CI: 1.123-3.020, P=0.029). Conclusion:Patients with RIF should be screened for CE, and if CE is diagnosed, pharmacological treatment is recommended prior to embryo transfer, which is beneficial to improve pregnancy outcomes in FET cycles.

Objective:To explore the pregnancy outcomes of frozen-thawed embryo transfer (FET) after antibiotic treatment in patients with recurrent implantation failure (RIF) and chronic endometritis (CE).Methods:A retrospective cohort study was conducted to analyze 496 women with RIF undergoing hysteroscopy and endometrial biopsy before the next FET in Reproductive Medicine Center of Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology from January 2018 to December 2021. According to the pathological results of endometrial biopsy and subsequent treatment, the patients were divided into cured CE group (strong positive CD138 was converted to negative after antibiotic treatment, n=103), suspected CE group (weak positive CD138, n=76), non-CE group (negative CD138, n=230) and control group (hysteroscopy and diagnostic only, no CE-related histopathological screening, n=85). The pregnancy outcomes after FET were compared among the four groups. Results:The prevalence of CE in the patients with RIF was 25.5% (105/411), and the sensitivity of hysteroscopy for the diagnosis of CE was 55.2% and the specificity was 83.0%. The conversion rate of patients with CE was 86.7% (91/105) after 1 cycle of antibiotic treatment and 98.1% (103/105) after 2 cycles of treatment. After removing the confounding factors of age, ovarian reserve function, number of previous transfer cycles, number and type of embryos transferred in FET cycle, and number of high-quality embryos, multivariate regression analysis showed that the clinical pregnancy rate of the cured CE group improved significantly after antibiotic treatment ( OR=1.841, 95% CI: 1.123-3.020, P=0.029). Conclusion:Patients with RIF should be screened for CE, and if CE is diagnosed, pharmacological treatment is recommended prior to embryo transfer, which is beneficial to improve pregnancy outcomes in FET cycles.

Objective To investigate the MRI features of primary hepatic neuroendocrine tumor (PHNET). Methods Clinical information and MR imaging features of 13 histopathologically confirmed PHNET patients were retrospectively reviewed. All patients underwent routine MRI examination including T2WI and chemical shift imaging, diffusion weighted imaging (DWI) and dynamic contrast-enhanced imaging. All lesions were divided into two groups according to the maximum diameter (≥ 30 mm for large lesion group and<30 mm for small lesion group). The following MRI features of lesions were evaluated:location, size, growth pattern, signal intensity (T1WI, T2WI, DWI, in-and opposed-phase) and dynamic contrast-enhancement pattern. The pathologic features were also analyzed. Results The PHNET can be single lesion(n=7)or multiple lesions(n=6)in which 4 cases showed diffuse pattern.One hundred and six lesions in 13 patients were detected.The median diameter of all lesions was 20 mm(ranging from 3 to 200 mm).Fourteen lesions were found in≥30 mm group and 92 lesions in<30 mm group.(1)In≥30 mm group,all lesions had well-defined margin,heterogeneous hyperintensity on T2WI,heterogeneous hypointensity on T1WI and halo sign on DWI. All lesions showed cystic degeneration, necrosis and pseudo-capsule. Three lesions showed dilation of bile duct around the lesion, and three lesions hemorrhaged and three lesions signal dropped on out-of-phase.On arterial phase,7 lesions showed ring-like enhancement,and the other 7 lesions showed heterogeneous enhancement;then on portal venous phase and delayed phase, 8 lesions showed persistent enhancement and the other 6 lesions showed"wash-out"appearance.Three cases showed lymphadenopathy in the peritoneum and liver hilum. (2) In<30 mm group, 76 lesions showed well-circumscribed edge and the other 16 lesions had ill-defined margin. Eighty two lesions showed relatively homogeneous hyperintensity on T2WI and relatively homogeneous hypointensity on T1WI. One lesion showed heterogeneous hyperintensity on T2WI and heterogeneous hypointensity on T1WI.Nine lesions showed halo and nodular hyperintensity and the other 83 lesions nodular hyperintensity on DWI.Ten lesions demonstrated cystic degeneration and necrosis. Ten lesions showed pseudocapsule. All lesions showed no dilation of bile duct, hemorrhage and signal drop on out-of-phase. On arterial phase, 31 lesions showed ring-like enhancement, 3 lesions showed heterogeneous enhancement and 58 lesions showed homogeneous enhancement;on portal venous phase and delayed phase,62 lesions showed persistent enhancement and 30 lesions showed"wash-out"sign. No lymphadenopathy was found in this group. In the pathologic analysis, hemorrhage and central necrosis were detected in the gross specimens.And in the 13 cases of PHNET,1,3 and 9 cases were classified into G1, G2 and G3 grade, respectively. Conclusions The PHNET can be single or multiple with various sizes. The large lesions often show heterogeneous signal intensity on T2WI and T1WI with cystic degeneration, necrosis, hemorrhage, pseudo-capsule and dilated bile duct, peripheral hyperintensity on DWI, ring-enhancement or heterogeneous slight enhancement in arterial phase, while small lesions often show ring-enhancement or homogeneous obvious enhancement in arterial phase.

Objective To investigate the clinical effect of restrictive episiotomy in low risk primipara.Methods 100 full-term pregnant women with low risk primipara were divided into observation group and control group according to random number table,50 cases in each group.The patients in the observation group were treated with restrictive episiotomy.The perineum,the second stage of labor,hospitalization time and cost,postpartum sexual life were compared between the two groups.Results In the observation group,the proportion of perineal incision (22.0％ vs.82.0％) was less than that in the control group,the proportion of perineal pain (4.0％ vs.26.0％) was lower than that in the control group,the incidence rate of first degree laceration(38.0％ vs.6.0％) was higher than that in the control group,the differences were statistically significant (x2 =36.058,9.490,14.918,allP ＜ 0.05).The hospitalization time of the observation group was significantly shorter than that of the control group [(3.15 ±0.78)d vs.(3.84 ± 0.98)d],the cost of hospitalization of the observation group was significantly lower than that ofthe control group[(1 814 ± 356) yuan vs.(1 999 ± 387) yuan],the differences were statistically significant (x2 =2.397,3.895,2.488,all P ＜ 0.05).The recovery time of sexual life in the observation group was significantly shorter than that in the control group[(45.6 ± 16.5)d vs.(72.5 ± 23.6)d],and the incidence rate of coital pain was lower than that of the control group (6.0％ vs.24.0％),the differences were statistically significant (x2 =6.606,6.353,all P ＜ 0.05).Conclusion Restrictive episiotomy in low risk primipara has good effect,it is conducive to postpartum recovery.

OBJECTIVE:To establish a method for the content determination of amygdalin in Lianhua qingwen capsule. METH-ODS:HPLC was performed on the column of Phenomenex Kinetex XB-C18 with mobile phase of acetonitrile-0.2%Phosphoric acid so-lution(6∶94,V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 207 nm,column temperature was 30℃,and the injec-tion volume was 10μl. RESULTS:The linear range of amygdalin was 43.16-215.80 μg/ml(r=0.999 7);the limit of detection was 0.431 6μg/ml,the limit of quantitation was 1.294 8μg/ml;RSDs of precision,stability and reproducibility tests no more than 0.69%;recovery was 95.16%-100.49%(RSD=1.67%,n=9). CONCLUSIONS:The method is simple and rapid with high accuracy and well reproducibility,and can be used for the content determination of amygdalin in Lianhua qingwen capsule.

The relationship between apoptosis of granulosa cells and follicle development arrest in polycystic ovarian syndrome (PCOS) rats, and the contribution of tumor necrosis factor related apoptosis inducing ligand (TRAIL) in apoptosis of granulosa cells were explored. By using sodium prasterone sulfate rat PCOS model was induced. The apoptosis of granulosa cells in ovaries of rats was observed by TdT-mediated dUTP-biotin nick end-labeling (TUNEL), and the expression of TRAIL protein and mRNA in granulosa cells was detected by using immunohistochemical staining and reverse transcription polymerase chain reaction (RT-PCR) respectively. The apoptotic rate and the expression of protein TRAIL in granulosa cells were significantly higher in antral follicles from the PCOS rats than in those from the control rats (P<0.01, P<0.05). There was no significant difference in apoptotic rate and the expression of TRAIL protein in granulosa cells of preantral follicles between the PCOS rats and the control rats (P>0.05). No apoptosis and the expression of TRAIL protein in granulosa cells of primordial follicles were found in the two groups. The expression of TRAIL mRNA was significantly stronger in granulosa cells from the PCOS rats than in those from the control rats (P<0.01). It was suggested that the apoptotic rate in granulosa cells was significantly higher in antral follicle from the PCOS rats than in those from the control rats. TRAIL played a role in regulating the apoptosis of granulosa cells in PCOS rats.

To study the effects of mouse cytomegalovirus (MCMV) on the in vitro maturation, fertilization, cleavage and blastula formation of mouse oocytes, the immature oocytes were infected in vitro by MCMVs of different dosages (100 TCID(50), 10 TCID(50) and 1 TCID(50)). The oocytes were then observed for in vitro maturation, fertilization, cleavage and blastula formation and the ultrastructural changes after the culture with the viruses. Our results showed that no significant differences were found in IVM, IVF, cleavage and blastula formation among the groups treated with of virus of various dosages. And ultrastructural abnormality was observed in the oocytes treated by 100 TCID(50) of viruses. It is concluded that MCMV did not have any conspicuous effects on IVM, IVF, cleavage and blastula formation of murine immature oocytes.
Blastocyst ; Cells, Cultured ; Cleavage Stage, Ovum ; Cytomegalovirus Infections ; Fertilization ; Muromegalovirus/*pathogenicity ; Oocytes/cytology ; Oocytes/growth & development ; Oocytes/*virology

The relationship between apoptosis of granulosa cells and follicle development arrest in polycystic ovarian syndrome (PCOS) rats, and the contribution of tumor necrosis factor related apoptosis inducing ligand (TRAIL) in apoptosis of granulosa cells were explored. By using sodium prasterone sulfate rat PCOS model was induced. The apoptosis of granulosa cells in ovaries of rats was observed by TdT-mediated dUTP-biotin nick end-labeling (TUNEL), and the expression of TRAIL protein and mRNA in granulosa cells was detected by using immunhistochemical staining and reverse transcription polymerase chain reaction (RT-PCR) respectively. The apoptotic rate and the expression of protein TRAIL in granulosa cells were significantly higher in antral follicles from the PCOS rats than in those from the control rats (P＜0.01, P＜0.05). There was no significant difference in apoptotic rate and the expression of TRAIL protein in granulosa cells of preantral follicles between the PCOS rats and the control rats (P＞0.05). No apoptosis and the expression of TRAIL protein in granulosa cells of primordial follicles were found in the two groups. The expression of TRAIL mRNA was significantly stronger in granulosa cells from the PCOS rats than in those from the control rats (P＜0.01). It was suggested that the apoptotic rate in granulosa cells was significantly higher in antral follicle from the PCOS rats than in those from the control rats. TRAIL played a role in regulating the apoptosis of granulosa cells in PCOS rats.