Objective: To systematically evaluate the effects of AIDS related health education on Chinese university students,and to provide reference for effective prevention and control of AIDS in universities. Methods: Chinese and English databases including China National Knowledge Infrastructure,Wanfang Database,VIP Database,China Biology Medicine disc and PubMed were searched to find literature on the effects of AIDS health education on Chinese university students,which was published from June 30th of 2010 to June 30th of 2019. Rate difference（RD）was adopted as the effect index for the meta-analysis. Results: A total of 173 articles were found out,28 articles of which were included. There were 48 037 study samples,with 23 020 students in the intervention group and 25 017 students in the control group. The results of the meta-analysis showed that compared with the control group,the awareness rates of knowledge about condom（RD=0.21,95%CI：0.11-0.32）and mosquito transmission（RD=0.34,95%CI：0.25-0.43）,the rates of positive attitude to having class with HIV/AIDS（RD=0.21,95%CI：0.12-0.31）and being AIDS prevention volunteers（RD=0.14,95%CI：0.06-0.23）,and the rate of avoiding unprotected sexual behaviors（RD=0.30,95%CI：0.22-0.38）in the intervention group were significantly improved. The results of subgroup analysis showed that the awareness rate of knowledge about mosquito transmission in the comprehensive intervention based on peer education group was significantly improved（RD=0.43,95%CI：0.32-0.53）;the rate of positive attitude to having class with HIV/AIDS in medical students was significantly improved（RD=0.40,95%CI：0.35-0.46）. No publication bias was found by Begger's test and Egger's test. Conclusion Through AIDS health education,the awareness of AIDS-related knowledge among Chinese university students has been obviously improved,while the intervention of attitude and behaviors still needs to be strengthened with the promotion of comprehensive intervention based on peer education.

Objective To explore the feasibility of using irreversible electroporation (IRE)mediating HPV16 E6 shRNA into cervical cancer cell line SiHa,and to clarify the influence of their co-effect on the proliferation of SiHa cells and its mechanism.Methods A HPV16 E6 gene specific interference sequence was inserted in pGenesil-1 to build a interference vector.10 pulses of IRE with 800 V,100 μs,and 1 Hz were applied to the suspension of SiHa cells and vectors.According to the treatment factors,control group,IRE group,pGenesil-N group,pGenesil-N+IRE group,pGenesil-E6 group and pGenesil-E6 + IRE group were set up.The expression of green fluorescent protein (GFP)and transfection efficiency were confirmed by inverted fluorescence microscope 24 h after the vector was transfected by IRE,and the expression efficancy of GFP was calculated.The expression levels of E6 mRNA and protein were detected by RT-PCR and Western blotting method which was also applied to detect the expressions of P53 and PCNA.The proliferative activity of SiHa cells was determined by CCK-8 assay.Results Enzyme digestion and DNA sequencing verified that the vectors were correctly constructed.GFP was seen under inverted fluorescence microscope 24 h after IRE transfection.Compared with IRE group,the expression levels of E6 mRNA and protein were decreased detected by RT-PCR and Western blotting method after the vectors were treated with IRE,the P53 protein expression level was increased (P < 0.05),and the PCNA expression level was decreased (P <0.05).The CCK-8 assay results showed the proliferative activity of SiHa cells in pGenesil-E6+IRE group was decreased more obviously than that in pGenesil E6 group (P <0.05).Conclusion IRE can play the role of gene transfection of mediating HPV16 E6 shRNA into SiHa cells, and their co-effect can significantly inhibit the proliferation of SiHa cells.

Objective To observe the effects of treadmill training on hindlimb motor recovery and noradrenaline (NA) fibers in rats with spinal cord contusion.MethodsSpinal cord contusions at the T10 level were induced in 3-month old female SD rats by dropping a 10 g rod from a height of 25 mm.The injured rats were then randomly divided into a control group and a treadmill training group ( n =15 in each group).Treadmill training began 1 week post-injury.No treatment was administered to the control group rats.Hindlimb motor function was evaluated weekly from the 1 st to the 9th week post-injury using Basso Beattie Bresnahan (BBB) scores and average combined scores (ACOs).The expression of dopamine beta hydroxylase (DBH) in the spinal cord caudal to the injured area was detected by immunohistochemical staining.ResultsThe treadmill training group exhibited significantly greater improvement in BBB scores from the 3rd week to the 7th week and in ACOs from the 2nd to the 9th week post-injury compared with the control group.The number of DBH positive fibers in the injured spinal cords and the number of DBH positive neurons in the injured frontal horns were also significantly higher in the training group.ConclusionsTreadmill training can promote the recovery of hindlimb motor function in rats after spinal cord contusion,perhaps by increasing the number of DBH positive fibers and DBH positive neurons.

Objective To understand the infection status and gene types of Cryptosporidium among HIV/AIDS patients in Guangxi Zhuang Autonomous Region. Methods The fecal samples were collected from 285 HIV/AIDS cases in Nanning,Gui?lin,Qinzhou,Baise,Hechi cities of Guangxi and 150 HIV negative persons in Nanning City. The modified acid?fast staining and nested?PCR based on 18S rRNA were employed to detect the infection status of Cryptosporidium. The nested PCR products were sequenced,and the homology searches and identification for the gene types of Cryptosporidium were done by DNAStar soft?ware. Results The infection rate of Cryptosporidium in HIV/AIDS patients was 0.70%(2/285),and the rate of those with chronic diarrhea was 6.67%(2/30),the latter was significantly higher than that of the HIV negative persons(0,0/150)(P=0.002). Both the two HIV/AIDS patients infected with Cryptosporidium were from Guilin City. By molecular identification,the Cryptosporidium strains which the above 2 patients were infected with were Cryptosporidium andersoni and Cryptosporidium hominis respectively. Conclusions Cryptosporidium co?infection can be found in HIV/AIDS patients in Guangxi. The geno?types of the infection strains include Cryptosporidium andersoni and Cryptosporidium hominis.

Objective To investigate the risk of postpartum haemorrhage in HBV-infected pregnant women. Methods Cohort or case-control studies that discussed the relationship between hepatitis b virus infection and pregnancy outcome were searched in PubMed , EMBASE , Wiley Online Library , Cochrane Library , Google Scholar, CBM, WanFang database and CNKI etc. (till August 2015). The quality of included Cohort or case-control studies was evaluated , and Meta-analysis was performed with Rev Man5.2 software. Results Four observational case-control studies and 17 cohort studies , involving 19 549 women in observation , were identifled. Meta-Analysis results displayed that the incidence of postpartum haemorrhage in HBV-infected women was 9.3%, while 2.8% in women without HBV [RR = 2.97, 95% CI (2.25 ~ 3.92),P < 0.01]. Compared with normal-risk women , the incidence of postpartum haemorrhage of HBV-infected women with normal hepatic function was also higher [RR = 2.56, 95% CI (2.01 ~ 3.25),P < 0.01]. HBV-infected women with hepatic dysfunction had higher incidence of postpartum haemorrhage than those with normal hepatic function [RR = 2.67, 95% CI (2.17~ 3.28),P < 0.01]. Conclusions HBV-infected women are at higher risk of postpartum haemorrhage than normal pregnancy women and further hepatic dysfunction would lead to a continuing increase of the risk.

As an effective treatment for cancer, chemotherapy not only removes tumor cells, but also produces obvious killing effects on proliferating cells, especially hematopoietic cells, resulting in bone marrow suppression after chemotherapy, and affecting the effects of chemotherapy drug treatment and treatment cycle. Therefore, starting from the aspects of hematopoietic microenvironment damage and hematopoietic stem cell aging, to explore the mechanism of myelosuppression after chemotherapy, which provides new ideas and theoretical support for the intervention and management of bone marrow suppression after cancer chemotherapy.

Objective:The effect of three-dimensional(3D)printed bone-attached guide plate assisted cannulated screw fixation of pelvic fracture is reliable,but extensive soft tissue dissection is still required when installing the guide plate.This study aims to compare the efficacy of posterior pelvic ring fracture fixation with iliosacral screw insertion between the assistance of modified percutaneous patient specific 3D printed guide template and conventional fluoroscopy. Methods:From May,2019 and September 2021,28 patients sustained posterior pelvic ring fractures were randomized into 2 groups:A guide template group,in which the iliosacral screw was inserted for fixation of the posterior pelvic ring fracture with the assistance of modified percutaneous patient specific 3D printed guide template,and a fluoroscopy group,in which the iliosacral screw was inserted under the guidance of conventional fluoroscopy.The operation time,fluoroscopic frequency,intraoperative blood loss,and incision length were recorded for each screw insertion.Fracture reduction was evaluated according to the Matta criteria.The screw position was evaluated according to the modified Gras classification,and the functional outcome was evaluated according to Majeed score.The parameters of both groups were compared,and statistical analysis was performed. Results:All the 28 patients were followed up for 12-24 months.Of them,15 iliosacral screws were inserted in 14 patients in the guide template group,and 14 iliosacral screws were inserted in 14 patients in the fluoroscopy group.The operation time,fluoroscopic frequency,screw deviation,incision length,and blood loss in the guide template group were 20-30(25.8±2.8)min,9-15(12.2±1.9),2-4(2.6±0.7)mm,4-5(4.6±0.5)cm,and 5-10(7.8±1.7)mL,respectively,whereas those in the fluoroscopy group were 30-60(48.1±7.5)min,40-96(64.7±16.3),3-6(4.2±0.9)mm,0.8-1.2(1.0±0.1)cm,and 2-5(3.1±1.3)mL,respectively,and there were statistical significance(all P<0.001).Fracture reduction was evaluated according to the Matta criteria,and all the patients reached excellence and good(P=0.584)in the 2 groups.According to modified Gras classification,there were 12 Grade Ⅰ screws,3 Grade Ⅱ screws,and 0 Grade Ⅲ screws in the guide template group,and 10 Grade Ⅰ screws,3 Grade Ⅱ screws,and 1 Grade Ⅲ screw in the fluoroscopy group,with no statistical significance(P=0.334).The functional outcome was evaluated according to Majeed score at the last follow-up,without significant difference between the guide template group and the fluoroscopy group(P=0.908). Conclusion:Compared with the conventional fluoroscopy,it would cost less operation time,less fluoroscopic frequency and increase more accurate screw insertion to fixate the posterior pelvic ring fracture with the assistance of modified percutaneous patient specific 3D printed guide template.

Due to its advantages of safety, effectiveness, minimally invasive and quick recovery, botulinum toxin injection has become the preferred treatment for correction of masseter hypertrophy and adjustment of facial contour. There has been a large number of literatures report this application. In this review, we summerized the injection location, safe zone, injection layer, dose, effect and complication, as well as the recent progress.

Due to its advantages of safety, effectiveness, minimally invasive and quick recovery, botulinum toxin injection has become the preferred treatment for correction of masseter hypertrophy and adjustment of facial contour. There has been a large number of literatures report this application. In this review, we summerized the injection location, safe zone, injection layer, dose, effect and complication, as well as the recent progress.

Objective:Exploring the clinical characteristics and treatment outcomes of tailgut cysts, and improving the understanding of this disease.Methods:A retrospective analysis of 42 patients with tailgut cyst surgically treated from Jan 2012 to Mar 2024 was conducted.Results:This study included 42 patients (28 females,14 males) with a median age of 51 (23-76)years old. Nineteen cases of perineal/abdominal pain, 13 cases of perianal swelling, 10 cases of perianal abscess, 7 cases of sacrococcygeal sinus, and 4 cases of anal mass were observed. These symptoms often occurred simultaneously. All 42 patients had lesions located behind the rectum, with a relative position to the coccyx (7 above the coccyx, 17 below the coccyx, 11 above and between the coccyx levels, and 7 horizontally).Tailgut cysts were located in the pelvic floor, with 3 cases above the levator ani muscle, 17 cases below the levator ani muscle, and 22 cases between the levator ani muscle levels. Forty-one cases were treated with posterior approach, and 1 case was treated with combined approach. Thirty-two were unilocular and 10 multilocular. Female patients with multiple compartments were significantly more common than males ( P<0.05), while tumor location, tumor size, recurrence, and malignancy were all independent of gender. After surgery, 8 cases (19％) experienced recurrences and 5 cases of malignant transformation patients had a long term multiple relapses. Conclusions:Tailgut cysts are rare,while women were common seen.Non-specific symptoms of pain in the perineum or abdomen, perianal swelling or abscess, are usually observed. In addition, multiple relapses could have malignant transformation. Surgical complete resection is the most reasonable treatment method and the appropriate surgical path should be selected based on the size, location, and relationship with adjacent tissues of the tumor.