Therapeutic Effectiveness of Leukocyte-and Platelet-rich Fibrin for Diabetic Foot Ulcers:A Retrospective Study

Objective Diabetic foot ulcer(DFU)is one of the most serious complications of diabetes.Leukocyte-and platelet-rich fibrin(L-PRF)is a second-generation autologous platelet-rich plasma.This study aims to investigate the clinical effects of L-PRF in patients with diabetes in real clinical practice.Methods Patients with DFU who received L-PRF treatment and standard of care(SOC)from 2018 to 2019 in Tongji Hospital were enrolled.The clinical information including patient characteristics,wound evaluation(area,severity,infection,blood supply),SOC of DFU,and images of ulcers was retrospectively extracted and analyzed.L-PRF treatment was performed every 7±2 days until the ulcer exhibited complete epithelialization or an overall percent volume reduction(PVR)greater than 80%.Therapeutic effectiveness,including overall PVR and the overall and weekly healing rates,was evaluated.Results Totally,26 patients with DFU were enrolled,and they had an ulcer duration of 47.0(35.0,72.3)days.The severity and infection of ulcers varied,as indicated by the Site,Ischemia,Neuropathy,Bacterial Infection,and Depth(SINBAD)scores of 2–6,Wagner grades of 1–4,and the Perfusion,Extent,Depth,Infection and Sensation(PEDIS)scores of 2–4.The initial ulcer volume before L-PRF treatment was 4.94(1.50,13.83)cm3,and the final ulcer volume was 0.35(0.03,1.76)cm3.The median number of L-PRF doses was 3(2,5).A total of 11 patients achieved complete epithelialization after the fifth week of treatment,and 19 patients achieved at least an 80%volume reduction after the seventh week.The overall wound-healing rate was 1.47(0.63,3.29)cm3/week,and the healing rate was faster in the first 2 weeks than in the remaining weeks.Concurrent treatment did not change the percentage of complete epithelialization or healing rate.Conclusion Adding L-PRF to SOC significantly improved wound healing in patients with DFU independent of the ankle brachial index,SINBAD score,or Wagner grade,indicating that this method is appropriate for DFU treatment under different clinical conditions.

Current Research Progress of Central Venous Catheter-Associated Fibrin Sheath Prevention and Nursing Care

With the popularization of central venous catheterization in recent years,the problems arising from intravenous therapy have gradually increased.Fibrin sheath is the complication with the highest incidence rate in central venous catheterization,which has always been a major problem in intravenous therapy.So the prevention and treatment of fibrin sheath has become a hot spot of research in recent years.Hence,this paper summarizes the research on fibrin sheath in recent years.

Rescuing“hopeless”avulsed teeth using autologous platelet-rich fibrin following delayed reimplantation:Two case reports

BACKGROUND Tooth avulsion is one of the most severe types of dental trauma.Most avulsed teeth undergo long-term ankylosis and replacement resorption after delayed reimplantation and exhibit a poor prognosis.The aim of this work was to improve the success rate of avulsed teeth after delayed reimplantation using autologous platelet-rich fibrin(PRF).CASE SUMMARY Case 1 was a 14-year-old boy who fell and knocked out his left upper central incisor 18 h prior to his arrival at the department.The diagnoses were avulsion of tooth 21,lateral luxation of tooth 11 and alveolar fracture of teeth 11 and 21.In case 2,a 17-year-old boy fell 2 h prior to his presentation to the hospital,and his left upper lateral incisor was completely knocked out of the alveolar socket.The diagnoses included avulsion of tooth 22,complicated crown fracture of tooth 11and complicated crown-root fracture of tooth 21.The avulsed teeth were reimplanted along with autologous PRF granules and splinted using a semiflexible titanium preshaped labial arch.The root canals of the avulsed teeth were filled with calcium hydroxide paste,and root canal filling was performed 4 wk after reimplantation.The reimplanted teeth showed no symptoms of inflammatory root resorption or ankylosis at the 3-,6-,and 12-mo follow-up examinations after reimplantation with autologous PRF.In addition to the avulsed teeth,the other injured teeth were treated using corresponding conventional treatment methods.CONCLUSION These cases provide examples of the successful use of PRF to reduce pathological root resorption of the avulsed teeth,and the application of PRF may provide new healing opportunities for traditionally“hopeless”avulsed teeth.

Platelet rich fibrin is not a barrier membrane!Or is it?

Platelet-rich fibrin(PRF)is widely used in dentistry and other fields of medicine,and its use has become popular in dental implantology.In several published studies,PRF has been used as a barrier membrane.A barrier membrane is a sheet of a certain material that acts as a biological and mechanical barrier against the invasion of cells that are not involved in bone formation,such as epithelial cells.Among the basic requirements of a'barrier membrane,occlusivity,stiffness,and space maintenance are the criteria that PRF primarily lacks;therefore,it does not fall under the category of barrier membranes.However,there is evidence that PRF membranes are useful in significantly improving wound healing.Does the PRF membrane act as a barrier?Should we think of adding or subtracting some points from the ideal requirements of a barrier membrane,or should we coin a new term or concept for PRF that will incorporate some features of a barrier membrane and be a combination of tissue engineering and biotechnology?This review is aimed at answering the basic question of whether the PRF membrane should be considered a barrier membrane or whether it is something more beyond the boundaries of a barrier membrane.

直接免疫荧光Fibrin线性阳性的扁平苔藓样类天疱疮1例

扁平苔藓样类天疱疮是一种自身免疫性表皮下疱性疾病,仅累计口腔黏膜病损的病例较为少见,病程漫长,且反复迁延。本文报道了1例直接免疫荧光纤维蛋白Fibrin线性阳性的扁平苔藓样类天疱疮的诊疗过程。

Treatment of corneal dermoid with lenticules from small incision lenticule extraction surgery:a surgery assisted by fibrin glue

AIM:To observe the clinical efficacy of the combined use of small incision lenticule extraction(SMILE)-derived lenticule patches in corneal dermoid excision,with fixation of the lenticule patches assisted by fibrin glue.METHODS:Seventeen eyes of 17 patients with corneal dermoid were treated with dermoid removal combined with SMILE-derived lenticule transplantation.All lenticule patches were fixed by fibrin glue.Ocular changes were assessed using slit lamp microscopy and anterior-segmental optical coherence tomography.The best-corrected visual acuity(BCVA)and ocular dioptric variations were examined preoperatively and postoperatively.Intraocular pressure(IOP)was also monitored in all visited time.RESULTS:Totally,18 lenticule patches were used on 17 eyes of 17 cornea dermoid patients.The mean follow-up time was 11.47±5.28mo.All lenticule patches we resuccessfullyg lued,kept on its location and maintained transparent during the follow-up time,with a consecutive epithelial cover for 1wk.Nine of the patients could coordinate visual and optometry exam well.Their preoperative BCVA is 0.60±0.35 in decimal,significantly improved to 0.80±0.26 in decimal at 6mo postoperatively(Z=-2.392,P=0.017),but the changes of their corneal astigmatism diopters showed no significance,with 2.22±1.91 D preoperatively,and 2.28±1.31 D at 6mo postoperatively(Z=-0.135,P=0.893).Limbal pannus formation occurred in 4(23.52%)cases and decreased with the application of tacrolimus eyedrops.IOP increased in 2(11.76%)cases,but well decreased by timolol maleate eyedrops.All the adult patients or guardians of minor patients were satisfied with the cosmetic improvement.CONCLUSION:Dermoid excision combined with transplantation of SMILE-derived lenticule patches using fibrin glue is a safe and effective novel tectonic keratoplasty procedure for corneal dermoid.

The Role of Leukocyte and Platelet-Rich Fibrin in Enhancing the Healing of Extraction Sockets: An Overview of the Literature

Introduction: Leukocyte and platelet-rich fibrin (L-PRF) is an emerging material in dentistry, however, there are controversies surrounding its effectiveness. Despite the amount of literature available, debates regarding its effect continue. This review aims to summarize and clarify the data surrounding the use of L-PRF in promoting the healing of extraction sockets, which may offer a better outcome for future treatments. Purpose: The purpose of this review is to evaluate the current literature on the use of L-PRF in promoting the healing of extraction sockets, and to provide a comprehensive overview of the available evidence. Methods: A comprehensive computer-based search of databases such as PubMed, Medline, and Cochrane Library was conducted. Results: The results of this review suggest that L-PRF has shown promise in promoting early healing of extraction sockets, but the evidence for its effectiveness over a longer period is limited. Conclusion: Although L-PRF has shown promising results in the early healing periods, its effectiveness over a longer healing period cannot be confirmed based on the available data. More clinical trials with standardized protocols and consistent measurement methods are needed to establish the role of L-PRF in enhancing the healing of extraction sockets.

Evaluating the Benefits of Platelet Rich-Fibrin in Periodontal Regeneration: A Literature Review

Introduction: Platelet Rich-Fibrin (PRF) is a biological matrix derived from a patient’s own blood, rich in growth factors and platelets. Its use in various periodontal and non-periodontal procedures is gaining recognition due to its potential in promoting tissue regeneration. The purpose of this review was to evaluate the benefits of using PRF in intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Methods: The study searched PubMed for manuscripts published between 2017 and 2022 to better understand the clinical and radiological effects of PRF. The manuscripts were divided into the following sections: intra-bony defect regeneration, guided-bone regeneration, and sinus floor elevation. Results: In intra-bony defects, PRF improved clinical and radiological parameters when compared with OFD alone, with a significant difference in wound healing at 7 days. In GBR, a CBCT evaluation shows no statistical difference between the PRF-autogenous bone complex group and the bovine bone-collagen membrane complex regarding volume change of the augmented bone with a 16% rate of bone loss following a 6-month healing period. Also, a slight increase in bone thickness has been seen when liquid PRF is used. In sinus floor elevation, results revealed no differences in graft volume between PRF group and control group at any of the evaluated time points. Although higher implant stability immediately postoperatively, higher new bone formation, the lesser amount of residual graft and earlier implant placement. Conclusion: Platelet Rich-Fibrin is widely accepted for use in periodontal surgery and dentistry due to its minimally invasive nature and low risk of adverse effects, with positive results in tissue regeneration. There is evidence that PRF leads to improved and faster healing, as well as cost-effective regenerative procedures compared to other treatments.

Chitosan conduits enriched with fibrin-collagen hydrogel with or without adipose-derived mesenchymal stem cells for the repair of 15-mm-long sciatic nerve defect

Hollow conduits of natural or synthetic origins have shown acceptable regeneration results in short nerve gap repair;however,results are still not comparable with the current gold standard technique“autografts”.Hollow conduits do not provide a successful regeneration outcome when it comes to critical nerve gap repair.Enriching the lumen of conduits with different extracellular materials and cells could provide a better biomimicry of the natural nerve regenerating environment and is expected to ameliorate the conduit performance.In this study,we evaluated nerve regeneration in vivo using hollow chitosan conduits or conduits enriched with fibrin-collagen hydrogels alone or with the further addition of adipose-derived mesenchymal stem cells in a 15 mm rat sciatic nerve transection model.Unexpected changes in the hydrogel consistency and structural stability in vivo led to a failure of nerve regeneration after 15 weeks.Nevertheless,the molecular assessment in the early regeneration phase(7,14,and 28 days)has shown an upregulation of useful regenerative genes in hydrogel enriched conduits compared with the hollow ones.Hydrogels composed of fibrin-collagen were able to upregulate the expression of soluble NRG1,a growth factor that plays an important role in Schwann cell transdifferentiation.The further enrichment with adipose-derived mesenchymal stem cells has led to the upregulation of other important genes such as ErbB2,VEGF-A,BDNF,c-Jun,and ATF3.

Application of advanced platelet-rich fibrin for through-and-through bony defect during endodontic surgery:Three case reports and review of the literature

BACKGROUND The use of advanced platelet-rich fibrin(A-PRF)membranes for guided bone and tissue regeneration in through-and-through defects after endodontic surgery was explored in three cases.CASE SUMMARY Herein,three patients presented to the endodontic clinic suffering from apical periodontitis,associated with large bone resorption and related to previously endodontically treated teeth.Periapical surgery was indicated in these cases and the osteotomy site was covered by A-PRF membrane.Cone-beam computed tomography(CBCT)was used to assess the cases before and after the surgery.CONCLUSION Four months post-surgery,the recall CBCT scan showed complete obliteration of the osteotomy with newly formed bone.A-PRF membrane showed promising results and was an advantageous addition to surgical endodontic treatment.

Hypoxic pre-conditioned adipose-derived stem/progenitor cells embedded in fibrin conduits promote peripheral nerve regeneration in a sciatic nerve graft model

Recent results emphasize the supportive effects of adipose-derived multipotent stem/progenitor cells(ADSPCs)in peripheral nerve recovery.Cultivation under hypoxia is considered to enhance the release of the regenerative potential of ADSPCs.This study aimed to examine whether peripheral nerve regeneration in a rat model of autologous sciatic nerve graft benefits from an additional custom-made fibrin conduit seeded with hypoxic pre-conditioned(2%oxygen for 72 hours)autologous ADSPCs(n=9).This treatment mode was compared with three others:fibrin conduit seeded with ADSPCs cultivated under normoxic conditions(n=9);non-cell-carrying conduit(n=9);and nerve autograft only(n=9).A 16-week follow-up included functional testing(sciatic functional index and static sciatic index)as well as postmortem muscle mass analyses and morphometric nerve evaluations(histology,g-ratio,axon density,and diameter).At 8 weeks,the hypoxic pre-conditioned group achieved significantly higher sciatic functional index/static sciatic index scores than the other three groups,indicating faster functional regeneration.Furthermore,histologic evaluation showed significantly increased axon outgrowth/branching,axon density,remyelination,and a reduced relative connective tissue area.Hypoxic pre-conditioned ADSPCs seeded in fibrin conduits are a promising adjunct to current nerve autografts.Further studies are needed to understand the underlying cellular mechanism and to investigate a potential application in clinical practice.

慢性鼻窦炎伴鼻息肉鼻黏膜中纤维蛋白交联和降解相关调控基因表达异常

目的研究慢性鼻窦炎伴鼻息肉(chronic rhinosinusitis with nasal polyps,CRSwNP)患者以及合并哮喘(asthma,AS)患者(CRSwNP+AS)鼻黏膜中纤维蛋白沉积及其相关调控基因的表达情况。方法利用免疫荧光染色评估鼻黏膜中纤维蛋白的沉积情况;利用实时荧光定量聚合酶链式反应检测纤维蛋白交联和降解相关调控基因的表达,以及糖皮质激素治疗后的基因表达变化。结果与对照组相比,CRSwNP鼻黏膜中有显著的纤维蛋白沉积,且呈交联状态,CRSwNP+AS组有更明显的纤维蛋白沉积。基因表达检测显示,促进纤维蛋白交联的基因-凝血因子ⅩⅢA1(factorⅩⅢA chain 1,F13A 1)和抑制纤维蛋白降解的基因-纤溶酶原激活物抑制物1(plasminogen activator inhibitor 1,PAI-1)在CRSwNP和CRSwNP+AS组的表达均升高,并且F13A1在CRSwNP+AS组的表达较CRSwNP显著更高;促进纤维蛋白降解的基因-组织型纤溶酶原激活因子(plasminogen activator tissue type,PLAT)在CRSwNP+AS组的表达显著低于CRSwNP和对照组;尿激酶型纤溶酶原激活因子(plasminogen activator urokinase,PLAU)的表达在两种类型的CRSwNP中均上调。CRSwNP+AS患者经糖皮质激素治疗,可显著下调F13A1、上调PLAT的表达。结论CRSwNP患者鼻黏膜中存在大量纤维蛋白沉积,可能与纤维蛋白交联和降解相关基因的表达失调有关,合并AS患者鼻黏膜中F13A1和PLAT的表达失调更为明显。

富血小板纤维蛋白对难愈合创面炎症反应的影响

目的:研究富血小板纤维蛋白(Platelet-Rich Fibrin,PRF)对难愈合创面炎症反应的影响。方法:将2020年9月至2022年12月承德医学院附属医院烧伤整形科确诊的难愈合创面患者,完全随机分为PRF组、对照组,每组各20例,入院后均进行创面清创碘伏消毒,PRF组创面外敷PRF,隔日换药;对照组无菌敷料包扎换药治疗。于治疗前、治疗后第7天和第14天留取创面组织,进行HE染色来观察创面病理学变化;抽取静脉血分别检测白细胞(White Blood Cell,WBC)、C反应蛋白(C-Reac-tive Protein,CRP)和降钙素原(Procalcitonin,PCT)水平变化;创面组织进行CD34免疫组织化学染色,观察治疗前后创面血管化情况;通过流式细胞术比较治疗前与治疗后第7天患者血液中CD4^(+)T细胞与CD8^(+)T细胞水平变化以及CD4^(+)T/CD8^(+)T比值。结果:两组患者在性别、年龄和入院前病程的比较,差异均无统计学意义(P>0.05)。HE染色显示,在治疗前,两组患者创面均可见大量炎症细胞浸润,可见少量血管;治疗后第7天,PRF组的炎性细胞浸润减少,血管新生,治疗后第14天,PRF组炎性细胞明显减少,上皮增生,出现新生的皮肤附属器。WBC、CRP、PCT水平,治疗前差异无统计学意义(P>0.05),在治疗后的第7天和第14天时,炎症指标均下降,并且两组差异有统计学意义(P<0.05)。在治疗后第7、14天,PRF组CD34阳性表达细胞多于对照组,新生血管较多,创面上皮化出现也早于对照组。治疗前两组患者CD4^(+)T细胞、CD8^(+)T细胞和CD4^(+)/CD8^(+)比值无统计学意义(P>0.05);在治疗后第7天,两组患者的CD4^(+)T和CD4^(+)/CD8^(+)比值细胞均有上升,CD8^(+)T细胞均有下降,两组患者CD4^(+)T细胞、CD8^(+)T细胞及CD4^(+)/CD8^(+)比值比较具有统计学差异(P<0.05)。结论:PRF应用于难愈合创面,能减轻创面炎症反应,改善创面血液循环和免疫功能。

自体富白细胞-血小板纤维蛋白凝胶与腘绳肌腱修复创伤性髌骨脱位

背景:临床上创伤性髌骨脱位合并内侧髌股韧带股骨止点或体部撕裂多采用内侧髌股韧带重建手术,为促进内侧髌股韧带重建术后的腱骨愈合,研究者采用了包括生长因子、干细胞、富血小板血浆在内的多种生物治疗技术。目的:探讨自体富白细胞-血小板纤维蛋白凝胶联合腘绳肌腱重建内侧髌股韧带修复创伤性髌骨脱位的临床疗效。方法:选择2019年2月至2021年2月秦皇岛市第一医院诊治的创伤性髌骨脱位患者37例,采用随机数字表法分为试验组(n=18)与对照组(n=19),试验组接受自体富白细胞-血小板纤维蛋白凝胶联合自体腘绳肌腱重建内侧髌股韧带手术,对照组接受单纯自体绳肌腱重建内侧髌股韧带手术。两组患者术后随访12个月,通过目测类比评分、Lysholm评分、Kujala髌股关节评分及膝关节活动度评估患者膝关节疼痛及功能状态,通过MRI及CT片测量髌股关节髌骨倾斜角、髌骨适合角及髌骨外移率,评估髌股关节的稳定性及改善情况。结果与结论:①两组术后6,12个月的目测类比评分均低于术前(P<0.05),术后6,12个月的Lysholm评分、Kujala髌股关节评分均高于术前(P<0.05);试验组术后6个月的Lysholm评分、Kujala髌股关节评分高于对照组(P<0.05),两组间术后12个月的目测类比评分、Lysholm评分、Kujala髌股关节评分比较差异无显著性意义(P>0.05);②两组术后12个月的髌股关节髌骨倾斜角、髌骨适合角、髌骨外移率及关节活动度测量值均较术前明显改善(P<0.05);试验组术后12个月的髌骨倾斜角小于对照组(P<0.05),两组间术后12个月的髌骨适合角、髌骨外移率及关节活动度及MRI评分比较差异无显著性意义(P>0.05);③结果表明,自体富白细胞-血小板纤维蛋白凝胶联合腘绳肌腱重建内侧髌股韧带能有效治疗创伤性髌骨脱位,改善膝关节功能,恢复髌骨的运动轨迹。

WHBE兔膝骨关节炎模型的建立与PRFr的干预研究

目的采用内侧副韧带和部分髌韧带切除术建立WHBE兔KOA模型并用富血小板纤维蛋白释放液(PRFr)干预,探讨WHBE兔KOA模型软骨损伤和炎症的机制以及PRFr干预疗效。方法取WHBE兔24只,随机分成3组,即对照(NC)组(n=6)、模型(KOA)组(n=12)和治疗(PRFr)组(n=6);其中KOA组和PRFr组分别于术后第7天和第14天时向两侧关节腔内注射生理盐水和PRFr 0.5 mL。造模4、8周时,各组动物进行行为学评分、X线影像学观察,并取血清进行ELISA检测IL-1β、TNF-α、MMP-13水平,4周时KOA组处理6只,8周时处理各组剩余动物,取兔双侧膝关节,进行大体评分,脱钙后行病理切片制作,然后进行HE染色、甲苯胺蓝染色和番红O固绿染色以及TGF-β、BMP3和NF-κB免疫组化表达检测。结果与NC组比,造模后WHBE兔Lequesne MG行为学评分,Mankin’s评分,Pelletier评分均显著升高(P<0.01),可见膝关节肿胀明显、关节疼痛刺激和活动受限明显,且X光显示软组织呈高密度阴影,关节积液较多,解剖观察显示关节面粗糙,病理观察显示软骨表面缺损,软骨细胞丢失或部分丢失,表明WHBE兔KOA模型成立。与KOA组比较,PRFr干预治疗后血清炎症水平(IL-1β、TNF-α、MMP-13)均显著降低(P<0.05,P<0.01),软骨表面粗糙程度低,大部分软骨细胞分布整齐;同时TGF-β、BMP3和NF-κB表达水平亦显著降低(P<0.01)。结论本研究成功建立了WHBE兔KOA模型,且PRFr可通过TGF-β/BMP和NF-κB途径改善WHBE兔KOA模型软骨损伤和炎症。

急性缺血性脑卒中患者颅内血栓成分及调节性T细胞表达与患者临床结局的相关性

目的:分析急性缺血性脑卒中取栓患者的血栓成分及调节性T细胞表达与临床结局的关系。方法:连续纳入中国医科大学绍兴医院神经内科2021年6月至2022年10月接受颅内动脉取栓治疗的急性缺血性脑卒中患者。收集患者临床相关资料,对取栓术中改良脑梗死溶栓(mTICI)分级和发病3个月改良Rankin量表(mRS)评分等临床结局进行评价。所有血栓标本均进行苏木精-伊红染色、免疫组织化学染色,血栓红细胞、纤维蛋白/血小板以及调节性T细胞行半定量分析。结果:共纳入具有完整血栓数据的44例患者,其中红细胞型15例、混合型11例、纤维蛋白/血小板型18例,三组间ORG 10172急性脑卒中治疗分类试验(TOAST)病因分型差异具有统计学意义(P<0.01),而其余一般临床资料、手术相关资料无明显差异(均P>0.05)。按TOAST病因分型分为大动脉粥样硬化型28例和心源性栓塞型16例。大动脉粥样硬化型患者血栓的红细胞比例明显高于心源性栓塞型[分别为58.0%(44.2%,72.5%)和24.5%(12.7%,48.0%),P<0.01],而心源性栓塞型患者血栓的纤维蛋白/血小板比例明显高于大动脉粥样硬化型[分别为73.0%(49.2%,84.5%)和40.0%(25.2%,54.5%),P<0.01]。44例患者中,神经功能结局良好者19例,神经功能结局不良者25例,对患者相关资料进行单因素二元logistic回归分析,发现年龄、手术时间、CD4^(+)CD25^(+)T细胞数与患者的神经功能结局相关(均P<0.05),而其余临床相关资料及手术相关资料与患者神经功能结局无关(均P>0.05)。采用多因素二元logistic回归分析,纳入年龄、手术时间、CD4^(+)CD25^(+)T细胞数等变量,发现血栓CD4^(+)CD25^(+)T细胞数是患者神经功能结局的独立影响因素(OR=1.369,95%CI:1.101~1.701,P<0.01)。结论:血栓中红细胞、纤维蛋白/血小板成分与患者功能结局无明显相关性,但调节性T细胞表达增高与缺血性脑卒中患者神经功能结局良好相关。

自体脂肪颗粒联合PRF移植填充矫治面部凹陷的效果及PRF对移植脂肪成活率的影响

目的:研究自体脂肪颗粒联合富血小板纤维蛋白(Platelet-rich fibrin,PRF)移植填充矫治面部凹陷的效果及PRF对移植脂肪成活率的影响。方法:选取2019年3月-2021年12月在笔者医院择期行脂肪颗粒移植填充手术的120例面部凹陷女性就医者,按照随机分组原则分为观察组和对照组,每组60例。两组均采取脂肪颗粒移植手术,观察组在移植自体脂肪颗手术基础上联合富血小板纤维蛋白治疗。术后6个月,比较两组移植脂肪的成活率及治疗效果。结果:观察组移植成活率显著高于对照组(P<0.05),且观察组治疗效果显著优于对照组(P<0.05);两组血肿情况、局部感染情况、坏死、脂肪液化、破溃、纤维囊肿发生情况比较,差异无统计学意义(P>0.05)。结论:自体脂肪颗粒移植联合PRF在面部凹陷填充中疗效确切,不仅提升了脂肪移植成活率,而且改善了面部凹陷情况,值得临床推广应用。

血清FGL1、LncSChLAP1对晚期非小细胞肺癌免疫治疗效果及预后评估的价值

目的分析血清纤维蛋白样因子1(FGL1)、长链非编码RNA SChLAP1(LncSChLAP1)评估接受免疫治疗的晚期非小细胞肺癌(NSCLC)患者疗效及预后的价值。方法选取2019年4月—2022年12月南京市胸科医院呼吸内科诊治晚期NSCLC患者98例为NSCLC组,均接受免疫检查点抑制剂治疗,根据疗效分为有效亚组74例和无效亚组24例,以同期医院健康体检者50例为健康对照组。酶联免疫吸附实验检测NSCLC患者血清FGL1水平,实时荧光定量PCR检测血清LncSChLAP1水平;多因素Logistic回归分析影响晚期NSCLC患者化疗疗效的因素;受试者工作特征曲线分析血清FGL1、LncSChLAP1对晚期NSCLC患者免疫治疗疗效的预测价值;Kaplan-Meier曲线分析血清FGL1、LncSChLAP1对晚期NSCLC患者生存预后的影响。结果血清FGL1、LncSChLAP1水平比较,NSCLC组高于健康对照组(t/P=57.365/<0.001、28.443/<0.001)。无效亚组TNM分期Ⅳ期比例、血清FGL1、LncSChLAP1水平高于有效亚组(χ^(2)/P=15.375/<0.001,t/P=35.077/<0.001、35.127/<0.001)。血清FGL1、LncSChLAP1高是影响晚期NSCLC患者免疫治疗疗效的独立危险因素[OR(95%CI)=1.327(1.104~1.596)、1.415(1.094~1.829)];血清FGL1、LncSChLAP1及两项联合的AUC分别为0.856、0.792、0.905,两者联合优于各自单独预测效能(Z/P=4.258/0.007、5.119/<0.001)。FGL1高、低表达组1年总体生存率分别为22.92%(11/48)、60.00%(30/50),LncSChLAP1高、低表达组1年总体生存率分别为27.66%(13/47)、54.90%(28/51),FGL1高表达组、LncSChLAP1高表达组晚期NSCLC患者1年累积生存率分别低于FGL1低表达组、LncSChLAP1低表达组(χ^(2)/P=14.180/<0.001、17.553/<0.001)。结论晚期NSCLC患者血清FGL1、LncSChLAP1升高,是新的评估晚期NSCLC患者免疫治疗疗效及生存预后的血清标志物。

血清TRAF6、activin-A、SFMC水平与子痫前期患者病情及妊娠结局的相关性

目的分析血清肿瘤坏死因子受体相关因子6(TRAF6)、糖蛋白激素-激活素A(activin-A)、可溶性纤维蛋白复合物(SFMC)水平与子痫前期患者病情及妊娠结局的相关性。方法回顾性选取2020年7月至2023年1月郑州大学第二附属医院收治的134例子痫前期患者为研究组,另选取同期健康孕检女性为对照组,根据子痫前期患者病情程度分为轻度、重度患者,所有患者均随访至分娩结束后30 d,根据本次妊娠结局是否发生不良妊娠情况将研究组分为发生、未发生患者。对比对照组和研究组、不同病情程度及不同妊娠结局患者入院时血清TRAF6、activin-A、SFMC水平,并分析其相关性,分析入院时血清各指标水平检测对子痫前期患者妊娠结局的预测价值。结果研究组入院时血清TRAF6、activin-A、SFMC水平高于对照组(P<0.05);重度患者血清TRAF6、activin-A、SFMC水平高于轻度患者(P<0.05);入院时血清TRAF6、activin-A、SFMC均与患者病情程度呈正相关(P<0.05);妊娠不良患者入院时血清TRAF6、activin-A、SFMC水平高于妊娠良好患者(P<0.05);入院时血清TRAF6、activin-A、SFMC水平联合预测子痫前期患者妊娠不良的曲线下面积(AUC)为0.748。结论血清TRAF6、activin-A、SFMC表达与子痫前期患者病情程度及预后密切相关,其三者联合检测对预测子痫前期患者妊娠不良具有较高的应用价值,可辅助临床诊疗。

“改良”上颌窦底提升

上颌后牙缺失时,由于缺乏牙的功能性刺激以及上颌窦气化作用导致种植所需的剩余骨高度不足,剩余骨量无法保证种植体的初始稳定性时,需要采取上颌窦底提升增加上颌后牙区骨量。“改良”上颌窦底内提升是通过使用富血小板纤维蛋白(platelet-rich fibrin,PRF),在内镜(endoscope)辅助下实现同期植入种植体(simultaneous implants placement)的一种改良的、微创的牙槽嵴入路上颌窦底提升(sinus floor elevation),简称“PESS”。“PESS”在一定程度上优化了上颌窦底提升,减小了手术创伤。本文阐述了“PESS”的原理、适应证、临床操作流程及注意事项,以期为“PESS”在临床中的应用提供技术支持。