Evaluating the Effects on Ultrasound and on Magnetic Resonance for Knee Osteoarthritis Treatment by Platelet Rich Plasma Therapy in Combination with Mesenchymal Stem Cells from Autologous Adipose Tissue

Aim: To evaluate the effects based the changes on ultrasound and on magnetic resonance for knee osteoarthritis treatment by platelet-rich plasma therapy in combination with mesenchymal stem cell from autologous adipose tissue. Objects and Methods: 30 patients, 26 females, 4 males, mean age 58.63 ± 11.11, mean disease duration 5.3 ± 4.6 years, respectively 60 knee joints were diagnosed with osteoarthritis at stage II - III according to the Kellgren and Lawrence classifications. After ultrasound and magnetic resonance imaging in the first time, all patients were injected with platelet-rich plasma combined with mesenchymal stem cells from autologous adipose tissue into both knee joints. Results: After treatment 12 months by platelet-rich plasma injection combined with mesenchymal stem cells from autologous adipose tissue: The thickness of articular cartilage on ultrasound increased significantly from 2.08 ± 0.36 mm to 2.48 ± 0.36 mm with p Conclusion: The treatment of knee osteoarthritis by platelet-rich plasma combined with mesenchymal stem cells from autologous adipose tissue was effective in improving cartilage thickness on ultrasound and magnetic resonance, thereby improving the motor function of the knee joint.

Clinical and Magnetic Resonance Image Changes of Platelet-Rich Plasma Therapy in Combination with Human Mesenchymal Stem Cells from Autologous Adipose Tissue for Knee Osteoarthritis Treatment

Objective: To evaluate the efficacy based on clinical symptom and on magnetic resonance image of platelet-rich plasma therapy in combination with mesenchymal stem cells from autologous adipose tissue for knee osteoarthritis treatment. Patients and Method: 30 patients including 26 females and 4 males;correspondingly, 60 knee joints were diagnosed with osteoarthritis with stages II - III of Kellgren and Lawrence, their mean age was 58.63 ± 11.11. All were injected with autologous platelet-rich plasma that was extracted by PRP set, APC 30 PRP PRCEDURE PRAK and autologously extracted mesenchymal stem cells from abdominal adipose tissue using the ADI-25-01 ADIPOSEPRCEDURE PRAK of USA. Results: After 12 months: the pain level according to VAS score at the right knee joint was decreased from 6.0 ± 1.28 before treatment to 1.9 ± 0.3;VAS score at the left knee joint was decreased from 6.43 ± 1.19 to 2.25 ± 0.43. Total Lequene score at right knee joint was decreased from 16.04 ± 1.57 before treatment to 4.31 ± 1.04, at left knee joint was decreased from 17.52 ± 1.74 before treatment to 5.15 ± 1.48. Total WOMAC score at right knee joint was decreased from 55.93 ± 5.56 to 10.37 ± 1.56;at left knee joint was decreased from 53.97 ± 5.57 to 10.07 ± 1.59. There were 86.77% joints with cartilage thickness change and the patellar cartilage thickness was increased from 1.56 ± 0.09 mm before treatment to 1.65 ± 0.09 mm. Conclusion: The treatment of knee osteoarthritis by platelet-rich plasma therapyin combination with mesenchymal stem cells from autologous adipose tissue is effective in reducing pain, improving patient's mobility and walking function, reforming articular cartilage thickness on magnetic resonance image.

Effectiveness of a Single High Dose of Platelet-Rich Plasma (PRP) Injection Over Corticosteroid and Hyaluronic Acid Injections on Osteoarthritis, Chronic Tendinitis and Tennis Elbow Treatment

Background: Corticosteroid, hyaluronic acid (HA) injections and Anti-inflammatory agents are considered as non-invasive treatments for knee osteoarthritis (OA), Chronic Tendinitis (CT) and Tennis elbow (TE) that are supposed to provide symptomatic relief and to help surgical delay intervention. Platelet rich plasma (PRP) is a biological component shown to be beneficial for different orthopedic dysfunctionalities treatment. The presence of GFs in PRPs such as transforming growth factor-β, insulin-like growth factor 1co-stimulate the mesenchymal stem cells and fibroblasts secretions and promotes the fibrin matrix formation which effectively drive the healing process, induces regenerative response and lead to the damage structure repair in orthopedics trauma. Methods: Three groups of a total of 30 patients presenting OA, CT and TE diagnosis, non-responding to corticosteroid, HA and non-steroid anti-inflammatory treatments were randomized to undergo one intra-articular injections of single high dose of PRP. The efficacy of Intra-articular PRP Injections was evaluated before the injection and one month after. The efficiency assessment score was based on [1] Knee injury and Osteoarthritis Outcome Score, [2] Physical Function Short Form (KOOS-PS) Arabic (KSA) version LK 1.0, [3] HOOS-Physical Function Short form (HOOS-PS), and [4] Macdermid patient-rated Tennis Elbow. Results: A significant reduction of pain and a marked improvement in movements was observed in the 3 patient’s groups, PRP-injected patients showed significantly higher values compared with baseline: (p < 0.005 vs baseline), improve functional status and reduce clearly the articular dysfunctions over the time. In our study, single High dose injection of PRP provided an overall superior clinical improvement compared with HA and corticosteroid treatments over the time and the different follow-up checkpoints of the study.

Platelet rich plasma(PRP)induces autophagy in osteoblast precursor 3T3-L1

Autophagy is an essential cellular homeostatic mechanism by which intracellular components are delivered into the lysosomes for degradation and recycling.Autophagy has been related with a diversity of pathological or physiological dentary processes such as bone remodeling,skeletal aging,osteoclastogenesis,osteoblastogenesis and different types of oral cancer.Platelet-rich plasma(PRP),isolated from autologous blood,is a plasma preparation containing a higher concentration of platelets which contains numerous different growth factors and cytokines that activate several cellular signaling cascades.The purpose of this study is to investigate the effect of PRP on autophagy stimulation in both osteoblast precursor 3T3-L1 and non-related osteoblastic cells.Our results showed that PRP can increase the number of autophagic structures in 3T3-L1 and HeLa(cervical cancer cells)cells.Moreover,we have determined by Western blot a rise in the lipidated form of the autophagic protein LC3(i.e.LC3-II)upon PRP treatment.Taken together,our results suggest that PRP is able to induce a strongly autophagy response in osteoblast precursor and,to a lesser extent,in non-related osteoblastic cells,suggesting that PRP could be a potential therapeutic tool for some autophagy-related diseases associated with bone homeostasis.

Use of Platelet Rich Plasma (PRP) in the Treatment of Acute Post Intubation Tracheal Rupture: Report of Two Cases

The use of PRP involves a complex network of molecular events which accelerate tissue regenera-tion due to its richness in growth factors plus a variety of biologic mediators. Several communica-tions tell us about its usefulness on the dental implantology field, plastic surgery, orthopedics and peripheral nerve regeneration after trauma. We have presented our successful experience of its use in pneumology when treating severe hemoptysis, respiratory fistulae, spontaneous pneumothorax and one tracheal rupture. In this article we present two cases of post intubation tracheal rupture successfully treated with the local instillation of PRP on one of them and with the injection of PRP along the lips of the tracheal wound on the other. Tracheal rupture is a rare but life threatening complication of emergency intubation requiring an effective response in order to avoid the risk of patient death due to secondary mediastinitis and sepsis. Up to now there is no general consensus in the treatment of this condition and alternatives in use are not universally accepted. The use of local autologous PRP in our experience has demonstrated a favorable performance in such cases, turning it in a highly promising tool for the treatment of conditions such as this, in which a rapidly effective and minimally invasive handling is required.

Vacuum Assisted Closure (VAC) and Platelet-Rich Plasma (PRP): A Successful Combination in a Challenging Case of Gastroschisis

Giant gastroschisis could be a surgical challenge concerning the abdominal wall reconstruction. Many techniques have been described for both primary or staged closure but sometimes neither of them is succesful in all patients. We are presenting the combined use of Vacuum Assisted Closure (VAC) and Platelet-Rich Plasma (PRP) to improve the result in this difficult case. The use of VAC device is a well known procedure in the treatment of adult difficult wounds closure. It consists of a sponge applied directly on the abdominal wall defect, covered with a transparent dressing and connected to a controlled continuous negative pressure system [1]. Platelet-rich plasma (PRP) is an autologous concentration of human platelets in a small volume of plasma. Due to this combination it provides multiple growth and healing factors actively secreted by platelets which have been shown to begin and accelerate wound healing [2] [3]. The association between VAC and PRP was effective in the shrinkage and reduction of the abdominal defect. Fifteen months after the removal of the VAC device the fascia appears competent with a cutaneus scar that will need a plastic correction in the future. The VAC should be considered as a helpful and effective device in case of complicated giant gastroschisis or omphalocele when traditional treatment is not sufficient.

PRP联合曲安奈德局部注射及瘢痕组织瓣修复术治疗瘢痕疙瘩疗效分析

目的:分析富血小板血浆(Platelet-rich plasma,PRP)联合曲安奈德局部注射及瘢痕组织瓣修复术治疗瘢痕疙瘩的美学效果。方法:选取2017年2月-2021年11月遂宁市中心医院医疗美容科收治的瘢痕疙瘩患者85例,遵随机数字表法分为曲安奈德组42例(瘢痕组织瓣修复术联合曲安奈德局部注射)和联用PRP组43例(曲安奈德组基础上联合PRP治疗)。比较两组临床疗效,瘢痕恢复情况,疼痛及瘙痒情况和复发率,记录两组不良反应发生情况。结果:治疗后,联用PRP组治疗总有效率为97.67%,显著高于曲安奈德组的85.71%(P<0.05);治疗后,两组色泽、柔软度、血管及厚度评分均降低(P<0.05),且联用PRP组显著低于曲安奈德组(P<0.05);治疗后,两组疼痛及瘙痒评分均降低(P<0.05),且联用PRP组显著低于曲安奈德组(P<0.05);两组不良反应发生率差异无统计学意义(P>0.05);随访1年后,联用PRP组总复发率为2.33%,显著低于曲安奈德组的14.29%(P<0.05)。结论:PRP联合曲安奈德局部注射联合瘢痕组织瓣修复术治疗瘢痕疙瘩疗效确切,能有效促进瘢痕创面恢复,缓解疼痛及瘙痒,降低复发率。

PRP联合ADSCs负载藻酸钙凝胶修复软骨缺损的效果研究

目的探讨富血小板血浆(PRP)联合脂肪间充质干细胞(ADSCs)负载藻酸钙凝胶修复软骨缺损的效果。方法取新西兰大白兔皮下脂肪分离培养ADSCs,制造兔关节软骨缺损模型,然后将ADSCs种植到负载PRP的藻酸钙凝胶上,构建组织工程软骨并移植到缺损处。实验分为3组:对照组、PRP组和PRP-ADSCs-藻酸钙凝胶组,每组10只。术后观察细胞形态和生长情况,甲苯胺蓝染色和Ⅱ型胶原免疫组化染色等方法检测成软骨特性,CCK-8法检测ADSCs增殖活性,RT-PCR检测Ⅱ型胶原mRNA和蛋白多糖mRNA表达。结果在倒置相差显微镜下,ADSCs呈现典型的间充质干细胞形态,即梭形或椭圆形,细胞质丰富,核形规则。随着培养时间的延长,ADSCs逐渐呈现出良好的生长状态,细胞数量增多,细胞间连接紧密,形态规则。对照组软骨缺损区未见明显修复,染色呈浅蓝,ADSCs数量多;PRP组软骨缺损区部分修复,染色呈蓝色,ADSCs数量较对照组多;PRP-ADSCs-藻酸钙凝胶组软骨缺损区修复效果最好,染色呈深蓝色,ADSCs数量较PRP组多。诱导14 d后,ADSCs甲苯胺蓝异染阳性,胞浆及细胞周围出现紫红色异染。Ⅱ型胶原免疫组化染色显示,PRP-ADSCs-藻酸钙凝胶组ADSCs平均灰度值明显高于其他组(P<0.05);阳性细胞胞浆内可见棕黄色颗粒,细胞周围黄染。CCK-8检测显示,PRP-ADSCs-藻酸钙凝胶组ADSCs第2天进入指数生长,对照组第3天才开始进入指数生长状态。在观察期间内,PRP-ADSCs-藻酸钙凝胶组软骨诱导后ADSCs OD值显著高于其他组(P<0.05)。PRP-ADSCs-藻酸钙凝胶组Ⅱ型胶原mRNA表达明显高于其他组(P<0.05)。3组ADSCs的蛋白多糖mRNA表达随时间增加而递增,第14、21天PRPADSCs-藻酸钙凝胶组ADSCs的蛋白多糖mRNA表达明显高于其他组(P<0.05)。结论利用PRP、ADSCs、藻酸钙凝胶形成的复合体初步构建组织工程软骨对缺损关节软骨进行修复,可提高ADSCs增殖活性及Ⅱ型胶原和蛋白多糖mRNA表达水平,使缺损的关节软骨得到明显修复。

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.

Intraarticular injections(corticosteroid, hyaluronic acid, platelet rich plasma) for the knee osteoarthritis

Osteoarthritis(OA)is a complex"whole joint"disease pursued by inflammatory mediators,rather than purely a process of"wear and tear".Besides cartilage degradation,synovitis,subchondral bone remodeling,degeneration of ligaments and menisci,and hypertrophy of the joint capsule take parts in the pathogenesis.Pain is the hallmark symptom of OA,but the extent to which structural pathology in OA contributes to the pain experience is still not well known.For the knee OA,intraarticular(IA)injection(corticosteroids,viscosupplements,blood-derived products)is preferred as the last nonoperative modality,if the other conservative treatment modalities are ineffective.IA corticosteroid injections provide short term reduction in OA pain and can be considered as an adjunct to core treatment for the relief of moderate to severe pain in people with OA.IA hyaluronic acid(HA)injections might have efficacy and might provide pain reduction in mild OA of knee up to 24 wk.But for HA injections,the costeffectiveness is an important concern that patients must be informed about the efficacy of these preparations.Although more high-quality evidence is needed,recent studies indicate that IA platelet rich plasma injections are promising for relieving pain,improving knee function and quality of life,especially in younger patients,and in mild OA cases.The current literature and our experience indicate that IA injections are safe and have positive effects for patient satisfaction.But,there is no data that any of the IA injections will cause osteophytes to regress or cartilage and meniscus to regenerate in patients with substantial and irreversible bone and cartilage damage.

Topical application of platelet-rich plasma for diabetic foot ulcers: a systematic review

AIM To determine if topical application of platelet-rich plasma(PRP) to diabetic foot ulcers(DFUs) results in superior healing rates. METHODS A systematic review was registered with PROSPERO and performed using PRISMA guidelines. Level Ⅰ-Ⅳ investigations of topical PRP application in DFUs were sought in multiple databases including: MEDLINE, Web of Science, and Cochrane Central Register of Controlled Trials. The search terms used were "platelet rich plasma", "diabetes", "ulcers", and "wound". The Modified Coleman Methodology Score(MCMS) was used to analyze study methodological quality. Study heterogeneity and a mostly non-comparative nature of evidence precluded meta-analysis. Only the outcome measurements used by more than 50% of the studies were included in the data synthesis to increase power of the measurement over that of individual studies. A weighted mean of healing rate per week between PRP group vs controls were compared using two-sample z-tests using P-value of less than 0.05 for significance.RESULTS One thousand two hundred and seventeen articles were screened. Eleven articles(322 PRP subjects, 126 controls, PRP subject mean age 58.4 ± 7.2 years, control mean age 58.7 ± 5.9 years) were analyzed. Six articles were level Ⅱ evidence, four were level Ⅲ, and one article was level Ⅳ. The mean MCMS was 61.8 ± 7.3. Healing rate was significantly faster with PRP application compared to controls(0.68 ± 0.56 cm2/wk vs 0.39 ± 0.09 cm2/wk; P < 0.001). Mean heal time to > 90% of the original ulcer area was 7.8 ± 2.7 wk and 8.3 ± 3.7 wk for patients in the PRP group and control groups, respectively(P = 0.115). There were significantly lower adverse effects reported with PRP application compared to controls(7 wound infections, 1 contact dermatitis vs 14 wound infections, 1 maceration; P < 0.001).CONCLUSION The topical application of PRP for DFUs results in statistically superior healing rates and lower complication rates compared to controls.

The effect of platelet-rich plasma on cavernous nerve regeneration in a rat model

The aim of this study was to investigate the effect of platelet-rich plasma(PRP)on cavernous nerve(CN)regeneration and functional status in a nerve-crush rat model.Twenty-four Sprague-Dawley male rats were randomly divided into three equal groups:eight had a sham operation,eight underwent bilateral nerve crushing with no further intervention and eight underwent bilateral nerve crushing with an immediate application of PRP on the site of injury.Erectile function was assessed by CN electrostimulation at 3 months and nerve regeneration was assessed by toluidine blue staining of CN and nicotinamide adenine dinucleotide phosphate(NADPH)-diaphorase staining of penile tissue.Three months after surgery,in the group that underwent bilateral nerve crushing with no further intervention,the functional evaluation showed a lower mean maximal intracavernous pressure(ICP)and maximal ICP per mean arterial pressure(MAP)with CN stimulation than those in the sham group.In the group with an immediate application of PRP,the mean maximal ICP and maximal ICP/MAP were significantly higher than those in the injured control group.Histologically,the group with the application of PRP had more myelinated axons of CNs and more NADPH-diaphorase-positive nerve fibres than the injured control group but fewer than the sham group.These results show that the application of PRP to the site of CN-crush injury facilitates nerve regeneration and recovery of erectile function.Our research indicates that clinical application of PRP has potential repairing effect on CN and peripheral nerves.

Platelet-rich plasma for muscle injuries: A systematic review of the basic science literature

BACKGROUND Platelet-rich plasma(PRP) is an increasingly used biologic adjunct for muscle injuries, as it is thought to expedite healing. Despite its widespread use, little is known regarding the mechanisms by which PRP produces its efficacious effects in some patients.AIM To clarify the effects of PRP on muscular pathologies at the cellular and tissue levels by evaluating the basic science literature.METHODS A systematic review of PubMed/MEDLINE and EMBASE databases was performed using the Preferred Reporting Items for Systematic Reviews and MetaAnalyses(PRISMA) guidelines and checklist. Level III in vivo and in vitro studies examining PRP effects on muscles, myocytes and/or myoblasts were eligible for inclusion. Extracted data included PRP preparation methods and study results.RESULTS Twenty-three studies were included(15 in vivo, 6 in vitro, 2 in vitro/in vivo). Only one reported a complete PRP cytology(platelets, and red and white blood cell counts). Five in vitro studies reported increased cellular proliferation, four reported increased gene expression, and three reported increased cellular differentiation. Five in vivo studies reported increased gene expression, three reported superior muscle regeneration, and seven reported improved histological quality of muscular tissue.CONCLUSION The basic science literature on the use of PRP in muscle pathology demonstrates that PRP treatment confers several potentially beneficial effects on healing in comparison to controls. Future research is needed to determine optimal cytology,dosing, timing, and delivery methods of PRP for muscle pathologies.

Platelet-rich plasma increases transforming growth factor-beta1 expression at graft-host interface following autologous osteochondral transplantation in a rabbit model

AIM: To explore the effect of platelet-rich plasma on protein expression patterns of transforming growth factor-beta1(TGF-β1) in cartilage following autologous osteochondral transplantation(AOT) in a rabbit knee cartilage defect model.METHODS: Twelve New Zealand white rabbits received bilateral AOT. In each rabbit, one knee was randomized to receive an autologous platelet rich plasma(PRP) injection and the contralateral knee received saline injection. Rabbits were euthanized at 3, 6 and 12 wk post-operatively. Articular cartilage sections were stained with TGF-β1 antibody. Histological regions of interest(ROI)(left, right and center of the autologous grafts interfaces) were evaluated using Meta Morph. Percentage of chondrocytes positive for TGF-β1 was then assessed.RESULTS: Percentage of chondrocytes positive for TGF-β1 was higher in PRP treated knees for selected ROIs(left; P = 0.03, center; P = 0.05) compared to control and was also higher in the PRP group at each post-operative time point(P = 6.6 × 10^(-4), 3.1 × 10^(-4) and 7.3 × 10^(-3) for 3, 6 and 12 wk, respectively). TGF-β1 expression was higher in chondrocytes of PRP-treated knees(36% ± 29% vs 15% ± 18%)(P = 1.8 × 10^(-6)) overall for each post-operative time point and ROI. CONCLUSION: Articular cartilage of rabbits treated with AOT and PRP exhibit increased TGF-β1 expression compared to those treated with AOT and saline. Our findings suggest that adjunctive PRP may increase TGF-β1 expression, which may play a role in the chondrogenic effect of PRP in vivo.

超声引导下PRP关节腔内精准注射辅助全内重建术在后交叉韧带损伤中的应用研究

目的 研究超声引导下富血小板血浆(PRP)关节腔内精准注射辅助全内重建术对后交叉韧带(PCL)损伤的临床治疗效果。方法 44例住院手术治疗的PCL损伤患者,按随机数字表法分为对照组与试验组,每组22例。试验组实施超声引导下PRP关节腔内精准注射辅助全内重建术治疗,对照组实施全内重建术治疗,两组术后均进行功能锻炼。分析两组患者手术及随访情况,比较两组患者术后6个月移植物磁共振成像(MRI)评分及手术前后双膝后向松弛度差异值、国际膝关节文献委员会膝关节评估表(IKDC)评分、踝-后足美国足踝外科医师协会(AOFAS)评分。结果 两组患者手术均顺利完成,手术切口均愈合良好,正常出院后遵医嘱进行康复训练,并定期复查,所有患者均随访超过1年,随访过程中未发现自体供腱区相关并发症,未发现胫骨凹陷。术前及术后3、6、12个月,试验组患者患侧膝关节IKDC评分分别为(51.6±3.7)、(78.3±4.1)、(87.5±2.6)、(92.2±2.1)分,对照组分别为(50.5±4.7)、(74.8±4.2)、(82.9±4.0)、(90.2±3.1)分。术后3、6、12个月,两组患者患侧膝关节IKDC评分均较术前显著改善,同时术后6、12个月较术后3个月显著改善,术后12个月较术后6个月显著改善,差异均有统计学意义(P<0.05)。试验组术后3、6、12个月患侧膝关节IKDC评分均显著优于对照组,差异均有统计学意义(P<0.05)。术前及术后3、6、12个月,试验组患者患侧踝-后足AOFAS评分分别为(98.7±1.0)、(98.4±0.8)、(98.5±0.9)、(98.6±0.8)分,对照组分别为(98.2±0.9)、(98.0±0.8)、(98.3±0.9)、(98.4±1.0)分。术后第3、6、12个月,两组患者患侧踝-后足AOFAS评分与术前比较均无显著性差异(P>0.05);两组患者术前及术后3、6、12个月患侧踝-后足AOFAS评分组间比较无统计学差异(P>0.05)。术后6个月复查膝关节MRI提示两组患者的重建韧带均走行良好,腱骨愈合情况满意。试验组术后6个月移植物MRI评分显著优于对照组,差异有统计学意义(P<0.05)。术前,试验组双膝后向松弛度差异值为(13.6±1.4)mm,对照组双膝后向松弛度差异值为(13.9±1.5)mm;术后12个月,试验组双膝后向松弛度差异值为2~7 mm,平均(4.0±1.4)mm;对照组双膝后向松弛度差异值为2~6 mm,平均(3.5±1.2)mm。术后12个月,两组双膝后向松弛度差异值均较术前有显著改善,差异有统计学意义(P<0.05);术前及术后12个月,两组双膝后向松弛度差异值组间比较无统计学差异(P>0.05)。结论 超声引导下PRP关节腔内精准注射辅助全内重建术能够加速PCL损伤患者膝关节功能恢复,有效促进移植物重塑和腱-骨愈合,临床疗效满意。

PRP局部注射联合局部氧疗治疗Wagner分级2~4级糖尿病足疗效观察

目的:观察创面富血小板血浆(Platelet rich plasma,PRP)局部注射联合局部氧疗治疗Wagner分级2~4级糖尿病足创面的临床疗效。方法:选择笔者医院2019年1月-2021年12月收治的87例Wagner分级2~4级的糖尿病足患者病例资料进行回顾性研究。将患者按照治疗方法的不同分为对照组(42例)和PRP组(45例)。对照组创面给予常规处理及局部氧疗;PRP组在对照组治疗基础上给予PRP局部注射治疗。统计比较两组炎症指标情况、疼痛评分、创面愈合率及创面愈合时间。结果:治疗3周后,PRP组各炎症指标(白细胞、C反应蛋白、红细胞沉降率、降钙素原)均低于对照组(P<0.05),PRP组疼痛VAS评分低于对照组(P<0.05),PRP组创面愈合率高于对照组(P<0.05);PRP组创面愈合时间短于对照组(P<0.05)。结论:应用创面PRP局部注射联合局部氧疗能有效控制糖尿病足创面感染,加快糖尿病足创面的愈合速度,提高创面的愈合率,缩短创面愈合时间。

Combined administration of platelet rich plasma and autologous bone marrow aspirate concentrate for spinal cord injury: a descriptive case series

Administration of platelet rich plasma(PRP) and bone marrow aspirate concentrate(BMAC) has shown some promise in the treatment of neurological conditions;however, there is limited information on combined administration. As such, the purpose of this study was to assess safety and functional outcomes for patients administered combined autologous PRP and BMAC for spinal cord injury(SCI). This retrospective case series included seven patients who received combined treatment of autologous PRP and BMAC via intravenous and intrathecal administration as salvage therapy for SCI. Patients were reviewed for adverse reactions and clinical outcomes using the Oswestry Disability Index(ODI) for up to 1 year, as permitted by availability of follow-up data. Injury levels ranged from C3 through T11, and elapsed time between injury and salvage therapy ranged from 2.4 months to 6.2 years. Post-procedure complications were mild and rare, consisting only of self-limited headache and subjective memory impairment in one patient. Four patients experienced severe disability prior to PRP combined with BMAC injection, as evidenced by high(> 48/100) Oswestry Disability Index scores. Longitudinal Oswestry Disability Index scores for two patients with incomplete SCI at C6 and C7, both of whom had cervical spine injuries, demonstrated a decrease of 28–40% following salvage therapy, representing an improvement from severe to minimal disability. In conclusion, intrathecal/intravenous co-administration of PRP and BMAC resulted in no significant complications and may have had some clinical benefits. Larger clinical studies are needed to further test this method of treatment for patients with SCI who otherwise have limited meaningful treatment options. This study was reviewed and approved by the Ohio Health Institutional Review Board(IRB No. 1204946) on May 16, 2018.

Clinical Evaluation of Platelet Rich Growth Factors (PRGFS) in Treatment of Temporomandibular Joint Disc Displacement—Study Report

Objective: The aim of the study was to evaluate the effect of platelet rich growth factors (PRGFs) in treatment of temporomandibular joint disc displacement. Materials and Methods: The study subjects included 8 females having bilateral anterior disc displacement with reduction and 1 female having bilateral anterior disc displacement without reduction with the age range between 20 - 35 years. The process of obtaining PRGFs was carried out following the Anitua Technique. Results: Clinical parameters of Interincisal distance, Lateral excursion of mandible using digital caliper in millimeters and Visual Analogue Scale (VAS 0/10) for pain intensity score were used. All of these parameters were running through the intervals of two, four, and eight weeks till the end of the follow-up period at twenty-six weeks (six months). The participated patients showed the clinical improvement in the different clinical statuses such as interincisal distance;lateral excursion of mandible and Pain Score. Conclusion: the study reported early efficacy of PRGFs after the arthrocentesis of the joint in treatment of TMJ disc displacement, and according to our results, the injection of PRGFs could be a possible alternative treatment for patients who did not respond to standard treatment.

PRP宫内灌注联合雌二醇片/雌二醇地屈孕酮片在薄型子宫内膜不孕FET中的应用

目的分析薄型子宫内膜不孕冻融胚胎移植(FET)患者应用富血小板血浆(PRP)宫内灌注联合雌二醇片/雌二醇地屈孕酮片治疗的效果。方法将2020年1月至2022年12月于唐山市中医医院妇产科就诊的135例薄型子宫内膜不孕患者采用随机数字表法分为对照组(n=67)与治疗组(n=68)。两组均行FET治疗,对照组采用雌二醇片/雌二醇地屈孕酮片进行子宫内膜准备,治疗组采用PRP宫内灌注联合雌二醇片/雌二醇地屈孕酮片进行子宫内膜准备。比较两组不同时点血清生长因子、子宫内膜容受性情况,并比较两组妊娠结局。结果与治疗前相比,两组囊胚移植日、移植后1周血清血管内皮生长因子(VEGF)、转化生长因子-β1(TGF-β1)水平均升高,子宫内膜厚度均增加,子宫动脉阻力指数均减小,且治疗组改善更显著(P<0.05);治疗组血清学妊娠率及临床妊娠率均较对照组高,早期流产率较对照组低(P<0.05)。结论薄型子宫内膜不孕患者FET过程中行PRP宫内灌注联合雌二醇片/雌二醇地屈孕酮片治疗有助于提高血清生长因子水平,改善子宫内膜容受性及妊娠结局。

Platelet-rich plasma for regeneration of neural feedback pathways around dental implants: a concise review and outlook on future possibilities

Along with the development of new materials, advanced medical imaging and surgical techniques, osseointegrated dental implants are considered a successful and constantly evolving treatment modality for the replacement of missing teeth in patients with complete or partial edentulism. The importance of restoring the peripheral neural feedback pathway and thus repairing the lack of periodontal rnechanoreceptors after tooth extraction has been highlighted in the literature. Nevertheless, regenerating the nerve fibers and reconstructing the neural feedback pathways around osseointegrated implants remain a challenge. Recent studies have provided evidence that platelet-rich plasma （PRP） therapy is a promising treatment for musculoskeletal injuries. Because of its high biological safety, convenience and usability, PRP therapy has gradually gained popularity in the clinical field Although much remains to be learned, the growth factors from PRP might play key roles in peripheral nerve repair mechanisms. This review presents known growth factors contributing to the biological efficacy of PRP and illustrates basic and （pre-）clinical evidence regarding the use of PRP and its relevant products in peripheral nerve regeneration. In addition, the potential of local application of PRP for structural and functional recovery of iniured peripheral nerves around dental implants is discussed.