ABSTRACT
Objective:To investigate the clinical value of referral colposcopy in cervical high-risk human papillomavirus (HR-HPV) positive women in cervical cancer screening.Methods:Totally 2 445 cases, which were referred for colposcopic cervical biopsy for cervical HR-HPV positive in Karamay Central Hospital from January 2018 to November 2021 were collected. The status of cervical HR-HPV positive transferred colposcopy in different situations to identify high-grade squamous intraepithelial lesions (HSIL) and above (HISL+ ) was analyzed. The value of referral colposcopy in cervical HR-HPV positive women under different conditions was evaluated.Results:2 445 HR-HPV positive women were referred for colposcopic cervical biopsy, which confirmed 1 447 cases of negative for intraepithelial lesion or malignancy (NILM), 362 cases of low grade squamous intraepithelia lesion (LSIL), 510 cases of HSIL and 126 cases of squamous cell carcinoma (SCC); The complete coincidence rate between colposcopy diagnosis and pathological diagnosis was 67.08%(1 640/2 445), and the Kappa value of consistency test was 0.489. The sensitivity and specificity of colposcopy in the diagnosis of LSIL+ were 91.28% and 69.38%, and HSIL+ were 74.52% and 93.15%. The detection rates of HSIL+ in HPV16/18 positive and other 12 HPV positive patients with abnormal cervical liquid based cytology (TCT) were 64.78%(103/159) and 78.79%(364/462), respectively. The positive rates of HPV16/18 and 12 other HPV positive HSIL+ with normal TCT were 16.46%(82/498) and 6.56%(87/1 326), respectively. The rate of detecting HSIL+ in abnormal areas under colposcopy was 44.69%(534/1 195), and that in routine biopsy was 8.16%(102/1 250).Conclusions:Among the referred for colposcopic cases, the detection rate of HSIL+ was higher in cases with cervical HR-HPV positive and TCT abnormalities. Colposcopy has obvious value in identifying cervical lesions. The accurate diagnosis of cervical lesions is based on cervical biopsy under colposcopy.
ABSTRACT
Objective:To explore the clinical application of transumbilical single-port laparoscopy with self-made approach in common gynecological operations.Methods:105 cases of transumbilical single-port laparoscopic surgery with self-made approach successfully (single-port laparoscopic group) carried out in Karamay Central Hospital from January 2018 to September 2020 were retrospectively collected, and 105 cases of multi-port laparoscopic surgery (multi-port laparoscopic group) with matching conditions were selected. The operation time, intraoperative blood loss, postoperative first exhaust time, postoperative first out of bed activity time, postoperative 24-h pain score, postoperative satisfaction score of patients 3 months after operation, incision cosmetic score of doctors 3 months after operation, postoperative hospital stay, intraoperative surgeon′s feeling score and intraoperative and postoperative complications were compared between the two groups.Results:All operations were successfully completed under laparoscopy, without conversion to laparotomy, without auxiliary holes, and no obvious complications occurred during the operation. The operation time and intraoperative blood loss in the single-port laparoscopic group were greater than those in the multi-port laparoscopic group (all P<0.05). The incision cosmetic score of single-port laparoscopic group was significantly better than that of multi-port laparoscopic group ( P<0.05). The intraoperative surgeon′s feeling score in multi-port laparoscopic group was better than that in single-port laparoscopic group ( P<0.05). There was no significant difference between the two groups in the first postoperative exhaust time, the first postoperative out of bed activity time, 24-hour postoperative pain score, surgical satisfaction score and postoperative hospital stay (all P>0.05). The operation time and intraoperative blood loss of ovarian cyst stripping, hysteromyomectomy and total hysterectomy in the multi-port laparoscopic group were less than those in the single-port laparoscopic group (all P<0.05). There was no significant difference between the two groups in the operation time and intraoperative blood loss of salpingectomy and adnexectomy (all P<0.05). The feeling of doctors in multi-port laparoscopic group was better than that in single-port laparoscopic group (all P<0.05). Conclusions:Under the condition of appropriate case selection, laparoendosopic single-port surgery with self-made approach is feasible in common gynecological operations. The prominent advantage of laparoendosopic single-port surgery is postoperative cosmetic effect.
ABSTRACT
The responsive patterns of phytochrome gene family members to photoperiod and abiotic stresses were comparatively analyzed and the favorable natural variation sites of these genes were identified. This would help understand the mechanism of phytochrome gene family in photoperiod-regulated growth and development and abiotic stress response. In addition, it may facilitate the molecular marker assisted selection of key traits in foxtail millet. In this study, we used RT-PCR to clone three phytochrome genes SiPHYA, SiPHYB and SiPHYC from ultra-late maturity millet landrace variety 'Maosu'. After primary bioinformatics analysis, we studied the photoperiod control mode and the characteristics of these genes in responding to five abiotic stresses including polyethylene glycol (PEG)-simulated drought, natural drought, abscisic acid (ABA), high temperature and NaCl by fluorescence quantitative PCR. Finally, we detected the mutation sites of the three genes among 160 foxtail millet materials and performed haplotype analysis to determine the genes' functional effect. We found that the cloned cDNA sequences of gene SiPHYA, SiPHYB and SiPHYC were 3 981, 3 953 and 3 764 bp respectively, which contained complete coding regions. Gene SiPHYB and SiPHYC showed closer evolutionary relationship. Photoperiod regulated all of the three genes, but showed more profound effects on diurnal expression pattern of SiPHYB, SiPHYC than that of SiPHYA. Under short-day, when near heading, the expression levels of SiPHYA and SiPHYB were significantly lower than that under long-day, indicating their roles in suppressing heading of foxtail millet under long-day. SiPHYB and SiPHYC were responsive to PEG-simulated drought, natural drought, ABA and high temperature stresses together. SiPHYA and SiPHYB responded differently to salt stress, whereas SiPHYC did not respond to salt stress. Re-sequencing of 160 foxtail millet materials revealed that SiPHYB was highly conservative. Two missense mutations of SiPHYA, such as single nucleotide polymorphism (SNP) 7 034 522C→T and SNP7 036 657G→C, led to delaying heading and increasing plant height. One missense mutation of SiPHYC, such as SNP5 414 823G→T, led to shortening heading under short-day and delaying heading under long-day, as well as increasing plant height and panicle length regardless of photo-thermal conditions. Photoperiod showed different regulatory effects on SiPHYA, SiPHYB and SiPHYC. SiPHYB and SiPHYC jointly responded to various abiotic stresses except for the salt stress. Compared with the reference genotype, mutation genotypes of SiPHYA and SiPHYC delayed heading and increased plant height and panicle length.