Objective To explore the neuroimmunomedulation mechanism of ICAM-1 and LFA-1 in children with febrile seizures (FS).Methods 40 children with FS were dividedinto simple FS(SFs)groupin20 cases and complex FS(CFS)groupin20 cases,and 30 health children matched with regard to age and sex were enrolled into control group.The real-time fluorescence quantitative PCR wag used to detect the expression of PBMC ICAM-1 mRNA.At the same time,the PBMC LFA-1 mRNA expression wfs studied with Send-QuantitativeRT-PCR analysis.Results The levels of PBMC ICAM-1 mRNA in SFS group were significantly higher than those in control group and CF$group(P<0.05).The levels ofPBMC ICAM-1 mRNA showed downtrend between CFS group and control group.but there was no statistical difference between the two groups(P>0.05).The levels of PBMC LFA-1 mRNA grey-scales in SFS group were significantly higher than those in control group and CFS group(P<0.05).In addition,the levels of PBMC LFA-1 mRNA in CFS group showed downtrend than those in control group,but there wti8 no statistical difference between the two groups(P>0.05).Conclusions The gene expression levels of PBMC ICAM-I/LFA-I in SFS group were different from those in CFS group.Inflammable immunopathology damage induced by ICAM-1/LFA-1 may play an important role in the pathogenesis of SFS.On the contrary,ICAM-1/LFA-1 may have seme neuroprotective effects on the pathogenesis of CFS.

Using the technique of fluorescent-labled mRNA differential display, new apoptosis related gene 2ass-bnip3 of type 2 diabetic cardiomyopathy was found, the sequence of 1594 bp with coding 187 amino acids was obtained by the full-length clone, and its structural and functional predictions were performed. 2ass-bnip3 may play an important role in the development of diabetic cardiomyopathy via a regulatory pathway of calcium regulation and apoptosis.

It is difficult to avoid the shedding of brackets during orthodontic treatment, which may not only affect the orthodontic therapeutic effect but also prolong the orthodontic treatment duration. Sodium hypochlorite is a commonly used root canal irrigation agent in oral medicine and is seldom used in orthodontic treatment. Sodium hypochlorite on the enamel surface can strengthen the effect of etching by deproteinization to improve adhesion, which could reduce the probability of bracket shedding during orthodontic treatment. Therefore, this article reviews the effects of sodium hypochlorite on enamel.

Objective: To investigate the influencing factors of sulfated modification of Bupleurum chinense polysaccharides (BCP),and to elucidate the possible mechanism of improving the antioxidant ability of sulfated BCP (S-BCP).Methods:BCP was sulfated by chlorosulfonic acid-pyridine method.The degree of substitution (DS)of S-BCP was observed by adjusting the volume ratios of chlorosulfonic acid to pyridine (1:2,1:4,and 1:8).The structures of BCP and S-BCP were analyzed by infrared (IR)spectroscopy,the morphology of BCP and S-BCP were observed under scanning electron microscopy (SEM).The antioxidant model was established by using 1, 1-diphenyl-2-picrylhydrazyl (DPPH)free radical scavenging.The experiment was divided into positive control group,BCP group and S-BCP group,and the scavenging rates of DPPH free radical in various groups were compared. Results:When the volume ratio of chlorosulfonic acid to pyridine was 1 : 4,the reaction time was 2 h and the reaction temperature was 60 ℃,the maximum sulfur content percentage of S-BCP was 18.62% and the DS was the highest (DS = 2.32 ).Compared with BCP group, the scavenging rate of DPPH free radical of S-BCP was significantly increased (P <0.05).Conclusion:The volume ratio of chlorosulfonic acid to pyridine can affect the DS of S-BCP.The sulfated modification can increase the anti-oxidant capacity of BCP by changing its physic-chemical characters and spatial conformation.

Objective:To construct the expression vector of the fusion protein of human serum albumin (HSA) and thymopentin (TP5) and to express it in Pichia pastoris,and to elucidate the biological activity of fusion protein.Methods:The HSA-TP5 fusion gene was constructed by gene recombination and transfected into Pichia pastoris to construct the eukaryotic expression system of HSA-TP5.The recombinant eukaryotic expression plasmid of PPICZα-HSA-TP5 was obtained by agarose gel electrophoresis and purification reagent.The two step fermentation method was used to ferment gene engineering bacteria of HSA-TP5 in high density,and the fermentation supernatant protein was precipitated and concentrated;the purified fusion protein was obtained by cation exchange chromatography and hydrophobic chromatography and analyzed by SDS-polyacrylamide gel electrophoresis.The effect of the fusion protein on the proliferation of lymphocytes was detected by MTT assay.Results:The HSA target gene fragment with length of 1 845 bp was achieved by PCR method.The HSA-TP5-pPICZαC fusion plasmid was identified by restriction endonuclease digestion,and the fragment length was 707 bp.The sequence analysis showed that the HSA and TP5 sequences of the target genes were identical with the gene sequences reported in GenBank and were fused by forward fusion.PCR method confirmed that the eukaryotic recombinant plasmid PPICZ αC-HSA-TP5 was integrated into the yeast genome,and compared with control group,the target gene PCR product length was found to be 1 860 bp.SDS-PAGE analysis showed that the expression level of HSA-TP5 fusion protein was gradually increased with the induction time within 72 h.HSA-TP5 fusion protein was purified by cation exchange chromatography and AKTA multifunctional protein purification system.The MTT assay results showed that HSA-TP5 fusion protein was consistent with TP5 protein in promoting lymphocyte proliferation activity.Conclusion:HSA-TP5 fusion protein can be obtained by constructing the eukaryotic expression system of Pichia pastoris and owns the biological activity.

Objective:To understand sexual needs and factors of risky sexual behaviors among elderly men at different ages in two communities of Qiandongnan Miao and Dong autonomous prefecture and provide basis for targeted HIV prevention and intervention.Methods:Two communities in the prefecture were selected as study sites. Questionnaire surveys were carried out among elderly men aged 50 and over who visited or consulted in the communities from June to December 2018, and they were tested for HIV and syphilis antibodies.Results:Among 400 elderly men, 209 (52.2%) were 50-64 years old, and 191(47.8%) were above 65 years old. They were mainly Miao people, accounting for 66.3% (265/400), and 235 (58.8%) had an education no more than 6 years. HIV awareness of the two age groups were only 25.8% (54/199) and 26.2% (50/191), respectively. Among those aged 50-64, 142 (68.0%) felt normal sexual desire, and 153 (73.6%) reported penile erections or erections in most cases whenever sex, and 52.9% (110) ejaculated most of the time. HIV prevalence was 1.0% (4/400). Compared with the over 65-year-old group, the proportion of having sex with spouse/stable partners (89.5%, 179/200), proportion of no condom use with their spouse/stable sexual partners during the most recent sex (93.8%, 168/179), proportion of having casual sex (11.0%, 23/209) and commercial sex (3.8%, 8/209) were all higher among 50-64 age group. In comparison to those aged over 65 years old, average monthly income>3 000, and use of sex helper, aged 50-64 ( OR=2.70, 95% CI: 1.22-5.95), average monthly income ≤1 000 yuan ( OR=2.79, 95% CI: 1.25-6.21), and no use of sex helper ( OR=3.78) (95% CI: 1.65-8.67) were related factors of HIV risky sexual behavior last time. Conclusion:Elderly men in the minority prefecture had low HIV awareness. Compared with those≥65 years old, the 50-64 age group had more active sexual behaviors and higher sexual needs. Those from 50-64 age group, with lower economic level and good sexual ability were more likely to have HIV risky sexual behaviors.

Objective:To understand sexual needs and factors of risky sexual behaviors among elderly men at different ages in two communities of Qiandongnan Miao and Dong autonomous prefecture and provide basis for targeted HIV prevention and intervention.Methods:Two communities in the prefecture were selected as study sites. Questionnaire surveys were carried out among elderly men aged 50 and over who visited or consulted in the communities from June to December 2018, and they were tested for HIV and syphilis antibodies.Results:Among 400 elderly men, 209 (52.2%) were 50-64 years old, and 191(47.8%) were above 65 years old. They were mainly Miao people, accounting for 66.3% (265/400), and 235 (58.8%) had an education no more than 6 years. HIV awareness of the two age groups were only 25.8% (54/199) and 26.2% (50/191), respectively. Among those aged 50-64, 142 (68.0%) felt normal sexual desire, and 153 (73.6%) reported penile erections or erections in most cases whenever sex, and 52.9% (110) ejaculated most of the time. HIV prevalence was 1.0% (4/400). Compared with the over 65-year-old group, the proportion of having sex with spouse/stable partners (89.5%, 179/200), proportion of no condom use with their spouse/stable sexual partners during the most recent sex (93.8%, 168/179), proportion of having casual sex (11.0%, 23/209) and commercial sex (3.8%, 8/209) were all higher among 50-64 age group. In comparison to those aged over 65 years old, average monthly income>3 000, and use of sex helper, aged 50-64 ( OR=2.70, 95% CI: 1.22-5.95), average monthly income ≤1 000 yuan ( OR=2.79, 95% CI: 1.25-6.21), and no use of sex helper ( OR=3.78) (95% CI: 1.65-8.67) were related factors of HIV risky sexual behavior last time. Conclusion:Elderly men in the minority prefecture had low HIV awareness. Compared with those≥65 years old, the 50-64 age group had more active sexual behaviors and higher sexual needs. Those from 50-64 age group, with lower economic level and good sexual ability were more likely to have HIV risky sexual behaviors.

Objective:To investigate the application of local free-style perforator flap in repairing gluteal bedsores.Methods:A retrospective study was performed. Date from 35 patients(20 males and 15 females, mean age 46 years old, range from 24-71) with gluteal bedsores between June 2017 and June 2019 were retrieved and reviewed by the Department of Burn and Plastic Surgery, Second Xiangya Hospital of Central South University. Among these cases, 13 were paraplegia after trauma, 6 were paralysis after cerebral hemorrhage, 13 were chronic infection, and 3 were poor wound healing after tumor resection. The average defect size was 5.6 cm×5.0 cm(range from 2.0 cm×3.0 cm to 10.0 cm×5.0 cm). By following the concept of free-style perforator flap, the flap was designed near the wound according to the perforator location detected by Doppler before surgery, and the defects were recovered by the flaps by rotation or other method such as rotation. Or the perforator flap can be modified into dermis-fat flap and flipped 180° to recover the wound. After the surgery, the survival of the flap or the dermis-fat flap, wound healing, as well as the sense and motion function of buttock and lower limbs were observed and recorded.Results:21 cases were repaired by perforator flap and 14 cases were repaired by modified dermis-fat flap. The size of flap range from 3.0 cm×3.0 cm to 10.0 cm×7.0 cm. The follow-up time was 3-22 months(mean, 12 months). All perforator flaps and dermis-fat flaps survived. The appearance of buttock was pleasant and no recurrence of bedsores. The patients without paraplegia had no major sensory loss and pain. The function of gluteus maximus was basically normal, and the motor function of lower limb was also generally satisfactory.Conclusions:The local free-style perforator flap or modified dermis-fat flap has advantages including simple design and operation, reliable blood supply and minimal damage to the donor site. It is a better way to repair gluteal bedsores.

Objective:To introduce a surgical technique applied in autologous costal cartilage rhinoplasty described as the endonasal incision combined with umbrella-like graft.Methods:From February 2018 to May 2019, a total of 52 patients (48 females and 4 males) were enrolled and underwent rhinoplasty operation with bilateral intranasal incision for the construction of umbrellal scaffolds in Department of Burn and Plastic Surgery of the Second Xiangya Hospital. During the operation, bilateral inferior lateral cartilages were fully separated and septal cartilages were exposed. Umbrellal-like scaffolds were built to correct nasal aesthetic defects such as nasal columellar shrinkage and insufficient nasal tip protrusion. During the process of follow-up, all the patients were photographed and were asked to complete the the postoperative satisfaction survey by means of an online link or over the phone.Results:The preoperative nasal aesthetic defection was greatly improved. There is no the temporary complications including infection and bleeding. 30 patients who completed follow-up for 6 months at least and completed postoperative satisfaction survey were included in the case series. The measurements (average): The nasofrontal angle was measured as 141.29°±5.61°preoperation and 137.67°±5.27°postoperation. The nasolabial angle was measured as 89.53°±10.56°preoperation and 94.90°±5.88°postoperation , The nasal tip angle was measured as 86.60°±7.09°preoperation and 80.42°±5.47° postoperation, Columellar-lobular angle was measured as 48.82°±7.32°preoperation and 44.63°±2.51°postoperation , The tip projection-nasal length index was measured as 0.48±0.07 preoperation and 0.54±0.07 postoperation. Columellar-lobular length index was measured as 1.74±0.36 preoperation and 1.22±0.21 postoperation, There were significantly statistical differences between preoperative and postoperative measures. The photograph showed the location and reflection of nasal tip have remained stable, no upward or twist trend occurred. According to questionaire results, postsurgical swelling relieved in all cases within the first 3 to 6 weeks. No prolonged functional sequelae occured, Most of patients were satisfied with the aesthetic and functional results.Conclusions:Endonasal incision combined with umbrella-shape graft facilitates the operation, Bilateral endonasal incision allowed us to evaluate the reestablished nasal tip directly and adjust tip projection with convenience, there’s no columella scar left.

Objective:To investigate the application of local free-style perforator flap in repairing gluteal bedsores.Methods:A retrospective study was performed. Date from 35 patients(20 males and 15 females, mean age 46 years old, range from 24-71) with gluteal bedsores between June 2017 and June 2019 were retrieved and reviewed by the Department of Burn and Plastic Surgery, Second Xiangya Hospital of Central South University. Among these cases, 13 were paraplegia after trauma, 6 were paralysis after cerebral hemorrhage, 13 were chronic infection, and 3 were poor wound healing after tumor resection. The average defect size was 5.6 cm×5.0 cm(range from 2.0 cm×3.0 cm to 10.0 cm×5.0 cm). By following the concept of free-style perforator flap, the flap was designed near the wound according to the perforator location detected by Doppler before surgery, and the defects were recovered by the flaps by rotation or other method such as rotation. Or the perforator flap can be modified into dermis-fat flap and flipped 180° to recover the wound. After the surgery, the survival of the flap or the dermis-fat flap, wound healing, as well as the sense and motion function of buttock and lower limbs were observed and recorded.Results:21 cases were repaired by perforator flap and 14 cases were repaired by modified dermis-fat flap. The size of flap range from 3.0 cm×3.0 cm to 10.0 cm×7.0 cm. The follow-up time was 3-22 months(mean, 12 months). All perforator flaps and dermis-fat flaps survived. The appearance of buttock was pleasant and no recurrence of bedsores. The patients without paraplegia had no major sensory loss and pain. The function of gluteus maximus was basically normal, and the motor function of lower limb was also generally satisfactory.Conclusions:The local free-style perforator flap or modified dermis-fat flap has advantages including simple design and operation, reliable blood supply and minimal damage to the donor site. It is a better way to repair gluteal bedsores.