Comparative evaluation of autologous platelet-rich plasma and platelet lysate in patients with knee osteoarthritis

Autologous platelet-rich plasma (PRP) and platelet lysate (PL) are nowadays promising candidates in the treatment of articular cartilage lesions. We aimed to compare PRP and PL injection effectiveness in patients with knee osteoarthritis (KOA). A total of fifty women with KOA were included in the study. Patients were treated with intra-articular injections of PRP and PL. Clinical outcomes were evaluated using the comparison of VAS, WOMAC, and ROM scores. The concentration levels of growth factors and cytokines were measured by ELISA. All patients showed significant improvements in pain and function following treatment of KOA with PL and PRP compared to baseline. Moreover, PL's concentration of growth factors was significantly higher than PRP. A significant increase was also observed in all of the aforementioned mediators in both PRP and PL products compared to control. These results can introduce PL as a promising and alternative option for KOA therapy in the future.

Platelet lysate and tendon healing: comparative analysis of autologous frozen-thawed PRP and ketorolac tromethamine in the treatment of patients with rotator cuff tendinopathy

Platelet-rich blood derivatives are being nowadays increasingly used in the treatment of tendon-related pathologies as a rich source of growth factors. We sought to ascertain if local application of platelet lysate (PL) to augment rotator cuff repair ameliorates patient outcomes compared to ketorolac tromethamine treated group. A total of forty patients, with clinical diagnosis of Rotator Cuff Tendinopathy were randomized to receive sub acromial injections of PL every week for a total of 3 injections and two injection of ketorolac tromethamine once every two weeks. Subjective assessments included VAS, SPADI and shoulder range of motion were assessed at baseline and at 1 and 6 months after injection. Taking both control and PL groups, it was vividly seen that the outcomes were identical at the initial state, as well as the short-term one; whereas, when considering the 6-month period, there is a seemingly remarkable superiority in PL group in all parameters.

The therapeutic effects of autologous conditioned serum on knee osteoarthritis: an animal model

Objective

As a progressive chronic condition, osteoarthritis (OA) causes substantial pain and impairment. Secrete proinflammatory cytokines are essential mediators involved in the pathophysiology of OA. In this regard, the clinical effectiveness of autologous conditioned serum (ASC) has been shown through its injection into OA tissues. This study aimed to assess the effectiveness and concentration level of ACS components produced by Nano-carbon glass beads.

Intravenous whole blood was obtained from each New Zealand male rabbit by 10-ml syringes, comprising 33 medical-grade Nano carbon-coated glass beads. Serum retrieving was performed after 6–8 h incubation (37 C, 5% Co₂), and then centrifuged. The ACS was then injected into OA rabbits to assess its function.

Results

Glass beads-prepared ACS coated with Nano-carbon, induced a huge amount of cytokines and growth factors production. The concentration level of anti-inflammatory cytokines and proinflammatory cytokines was improved throughout Nano-carbon coated glass beads stimulation. ACS also shortened the recovery time and improved the function and mobility of OA rabbits.

We showed that ACS improved the function and mobility of OA rabbits, as well as shortened the recovery time. It is suggested that further studies evaluate this effectiveness.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13104-022-06166-1.

Use of autologous conditioned serum dressings in hard-to-heal wounds: a randomised prospective clinical trial

OBJECTIVE

In this study, we aimed to assess both the efficacy and tolerability of autologous conditioned serum (ACS) as an innovative wound dressing in the local management of hard-to-heal wounds.

METHOD

In this single-blinded randomised controlled trial, patients with hard-to-heal wounds were randomly assigned to receive either ACS treatment or normal saline (NS) dressings. The treatment was applied once a week for three weeks with a final assessment at three weeks from the first ACS application.

RESULTS

A total of 30 patients took part in the study. Analysis of wound assessment data demonstrated statistically significant differences for wound surface area and Pressure Ulcer Scale for Healing scores (area score, exudate and tissue) from baseline to the end of the study in patients who received the ACS dressing, but not in patients who received the normal saline dressing. There were statistically significant differences in changes in: the wound surface area at week three (-6.4±2.69cm² versus +0.4±2.52cm²); area score at week three (-2.2±1.08 versus +0.2±0.86); exudate at week two (-1.2±0.70 versus +0.0±0.45) and at week 3 (-1.3±0.72 versus -0.1±0.63); tissue at week two (-1.1±0.35 versus +0.0±0.53) and at week three (-1.8±0.65 versus -0.1±0.63); and the PUSH total score at week one (-1.6±0.98 versus +0.4±1.22), week two (-3.2±0.86 versus +0.4±0.98) and week three (-5.3±1.17 versus -0.0±1.33) between the ACS and NS groups, respectively.

CONCLUSION

This trial revealed a significant decrease in wound surface area as well as a considerable improvement in wound healing in the ACS dressing group.

Serum inflammatory and oxidative stress biomarkers levels are associated with pain intensity, pressure pain threshold and quality of life in myofascial pain syndrome

OBJECTIVES

We aimed to determine the serum concentrations of some inflammatory and oxidative stress biomarkers in relation with pain intensity and quality of life in patients with myofascial pain syndrome (MPS) compared to healthy controls. This study is a case-control study. The participants were selected from MPS patients who referred to rehabilitation outpatient clinics of the Tabriz University of Medical Sciences, Iran.

RESULTS

Serum hs-CRP (4.68 ± 4.36 vs. 2.92 ± 4.55 g/mlµ respectively, p = 0.011), phospholipase A2 (PLA2) (6.81 ± 2.22 vs. 4.73 ± 2.97 pg/ml respectively, p < 0.001) and malondialdehyde (MDA) (2.63 ± 0.71 vs. 1.98 ± 0.90 nmol/ml respectively, p < 0.001) levels were significantly higher and serum total antioxidant capacity (TAC) (2.46 ± 0.49 vs. 2.83 ± 0.82 mmol/L respectively, p = 0.011) and superoxide dismutase (SOD) (78.89 ± 37.93 vs. 154.25 ± 115.93 U/ml respectively, p < 0.001) levels were significantly lower in the MPS patients compared to healthy controls. Serum high-sensitivity C-reactive protein (hs-CRP) level was significantly and positively associated with resting (r = 0.349, p = 0.019), activity (r = 0.295, p = 0.049) and night pain (r = 0.304, p = 0.043) intensities, pressure pain threshold (PPT) (r = 0.210, p = 0.047) and pain duration (r = 0.283, p = 0.007). Serum TAC level was significantly and negatively associated with resting pain intensity (r = -0.312, p = 0.037). Some scales and subscales of quality of life were positively correlated with serum TAC level and negatively associated with serum hs-CRP and PLA2 levels.

Effect of Dextrose Prolotherapy, Platelet Rich Plasma and Autologous Conditioned Serum on Knee Osteoarthritis: A Randomized Clinical Trial

Knee osteoarthritis (OA) is one of the common degenerative articular disorders that are related to decreased quality of life. Currently, novel biologic therapeutic approaches are introduced in the literature for OA management. In this study, the clinical efficiency of Dextrose prolotherapy, platelet-rich plasma (PRP) and autologous conditioned serum (ACS) injection on the level of pain and function in Knee OA were compared. A randomized clinical trial was directed on 92 knee OA patients. Patients were randomly divided into three groups: 30 were received dextrose prolotherapy once in a week for three weeks, 30 received autologous PRP for two times with seven days interval, and in the remaining 32 patients 2ml of ACS were injected two times every seven days. Study participants were measured through the Western Ontario and McMaster Universities (WOMAC) score, the visual analogue scale (VAS), at baseline, 1 and 6 months post-intervention. Both ACS and PRP treated patients showed improvement in pain intensity and knee function during 1 and 6 months pursue; however, this progress was more significant in the ACS group. Dextrose prolotherapy showed no substantial changes in pain and function of the affected knee in treated patients. Treatment of Knee OA with ACS and PRP injections are associated with pain reduction and knee function improvement. Not only, ACS therapy is more effective than that of PRP, but also due to its less variability in processing and less reported side effects, it could be considered as a safe and effective non-surgical alternative for OA management.

Pilot prospective open-label one-arm trial investigating intrathecal Adenosine in neuropathic pain after lumbar discectomy

Objectives

Adenosine has an analgesic and anti-inflammatory role and its injections are used for perioperative pain management. We aimed to study efficacy of intrathecal injection of adenosine for post-operative radicular pain after lumbar discectomy. Forty patients with unilevel lumbar discectomy who had radicular lower limb pain were treated by 1000 micrograms of intrathecal injection of adenosine in this single-arm prospective open-label trial between November 2015 to October 2016. Radicular pain severity using visual analogue scale (VAS) and pain killer consumption per day were assessed during a 3 months follow up period.

Results

Radicular pain severity was significantly reduced in 3 month follow-up period in comparison to the baseline (F = 19,760, df = 2.53, p-value < 0.001). Further, painkiller medication consumption rate in average during 3 month follow-up period after injection was significantly lower in comparison to baseline (F = 19.244, df = 1.98, p-value < 0.001). This study suggests that intrathecal injection of 1000 micrograms adenosine is a safe and effective method for post-operative neuropathic pain management after uni-level disk surgeries.

Trial registration IRCT201608171772N20, Retrospectively registered on 2016-08-28.

Relative Effectiveness of Electroacupuncture and Biofeedback in the Treatment of Neck and Upper Back Myofascial Pain: A Randomized Clinical Trial

OBJECTIVE

To determine the differences between clinical effects of electroacupuncture and biofeedback therapy in addition to conventional treatment in patients with cervical myofascial pain syndrome (MPS).

DESIGN

Randomized clinical trial.

SETTING

Physical medicine and rehabilitation clinic of a university hospital.

PARTICIPANTS

Fifty patients (N=50) aged 25-55 years of both sexes with chronic neck pain diagnosed with MPS (characterized by trigger points within taut bands) were randomly assigned to 2 equal groups of 25 individuals.

INTERVENTIONS

The patients in electroacupuncture group were treated with standard acupuncture and concomitant electrical stimulation; those in biofeedback group received visual electromyography biofeedback therapy for muscle activity and relaxation. Both groups received the intervention 2 times a week for a total of 6 sessions. Basic exercise training and medicines were administered for all the patients.

MAIN OUTCOME MEASURES

Pain severity based on the visual analog scale (VAS), functional status using Neck Disability Index (NDI), cervical range of motion (ROM) using and inclinometer, and pressure pain threshold (PPT) using an algometer were evaluated before and at 3 and 12 weeks after the treatment. Primary outcome was defined as 20% reduction in the 3-month neck pain and dysfunction compared to baseline, assessed through the NDI.

RESULTS

Fifty patients (39 women, 11 men) with a mean age (years) ± SD of 39.0±5.5 and neck pain duration (weeks) of 6.0±2.2 were analyzed. All parameters, except for PPT of the lower trapezius and paravertebral muscles were improved significantly in both groups, while baseline values were controlled. The primary outcome was achieved more significantly in the acupuncture group than in the biofeedback group: 20 (80.0%) vs 10 (40.0%); rate ratio=2 with 95% confidence interval (CI), 1.19-3.36; number needed to treat (NNT)=2.5 with 95% CI, 1.54-6.58. Advantages of acupuncture over biofeedback were observed according to values obtained from the NDI, VAS, extension and left lateral-bending ROM, and PPT on the left upper trapezius after the last session of intervention until 3 months (P<.05).

CONCLUSIONS

Both electroacupuncture and biofeedback therapies were found to be effective in management of MPS when integrated with conventional treatment. However, intergroup differences showed priority of acupuncture in some parameters vs biofeedback. Thus, electroacupuncture seems to be a better complementary modality for treatment of MPS in the neck and upper back area.

Prospects for the application of growth factors in wound healing

As the largest organ of the body, human skin is multifunctional and enjoys two layers, the epidermis and the dermis, the separation of which is performed by a basement membrane zone. Skin protects the body against mechanical forces and infections. Skin wounds represent large and growing challenges to the healthcare systems globally. Skin wound healing, as a protective shield for the body against the external environment, includes interactions among cell types, the neurovascular system, cytokines, and matrix remodeling. Growth factors (GFs) affect the microenvironment of the wound, and cause rises in cell differentiation, proliferation, and migration. Administrating exogenous GFs has revealed potential in enhancing wound healing outcomes. The use of human GFs in the field of wound healing is becoming gradually more interesting, because of the low-invasive techniques required for their use. Reviewed here are the literatures on the healing of skin wounds with emphasize on the role of GFs and their future prospects, containing profits, and probable long-standing side effects accompanied with their use.

Lower serum 25-hydroxyvitamin D3 concentration is associated with higher pain and disability in subjects with low back pain: a case-control study

Objectives

Low back pain (LBP) is a common medical problem worldwide. The aim of this study is to evaluate the association between serum concentration of 25-hydroxivitamin D3 and functional disability in patients suffering from LBP in a sample of Azeri middle-aged subjects, North West of Iran.

Results

In this case–control study, 63 eligible patients with LBP and 55 healthy subjects enrolled in the study. Peripheral venous blood was taken for evaluating the serum concentration of 25-hydroxivitamin D3. We recognized factors related with LBP by multiple regression analyses. The average serum 25-hydroxivitamin D3 concentration in case group was significantly lower than that of the matched controlled group (26.25 ± 15.95 vs. 34.20 ± 14.92, p-value < 0.01 respectively). Subjects with vitamin D deficiency or insufficiency were more likely to exhibit LBP than subjects with normal serum 25-hydroxivitamin D3 concentration [(OR = 2.388, 95% CI (1.114 to 5.119)]. According to the partial correlation analysis, there was a reverse correlation between serum 25-hydroxivitamin D3 concentration with functional disability measured by Modified Oswestry Questionnaire (r = − 0.307, p = 0.017) and also with pain intensity according to Visual Analogue Scale (VAS) score (r = − 0.268, p = 0.040) whilst adjusting for age, sex and body mass index (BMI).

Mental health status among female sex workers in Tabriz, Iran

Female sex workers are a deprived part of Islamic communities. It is necessary for public health policy makers to have knowledge about their mental health status. This study aims to have an evaluation of mental health among female sex workers in Tabriz for the first time in northwest of Iran. In this cross-sectional study, 48 female sex workers who had accepted to be evaluated were included. Sociodemographic and general mental health statuses, using General Health Questionnaire (GHQ-28), were recorded. Those with GHQ-28 score more than 23/24 in the first session were thoroughly interviewed in a second session in order to find out their specific mental disorder, using Structured Clinical Interview for DSM-IV axis 1 and 2 Disorders (SCID 1 and 2). This study suggests that 62.5% of female sex workers suffer from a mental health problem which is in accordance with previous studies. Mood and anxiety disorder were two of the most common, and there were also records of personality disorders among participants of this survey. There were also high rates of addiction in female sex workers of this study. Based on findings of this study, high rates of mental disorders such as personality disorders, anxiety disorder, and mood disorder were detected among female sex workers in the northwest of Iran. Financial incentive was reported to be the primary motivation for choosing sex work as a source of income.

Novel therapeutic approaches in utilizing platelet lysate in regenerative medicine: Are we ready for clinical use?

Hemoderivative materials are used to treat different diseases. These derivatives include platelet-rich plasma, serum, platelet gel, and platelet lysate (PL). Among them, PL contains more growth factors than the others and its production is inexpensive and easy. PL is one of the proper sources of platelet release factors. It is used in cells growth and proliferation and is a good alternative to fetal bovine serum. In recent years, the clinical use of PL has gained more appeal by scientists. PL is a solution saturated by growth factors, proteins, cytokines, and chemokines and is administered to treat different diseases such as wound healing, bone regeneration, alopecia, oral mucositis, radicular pain, osteoarthritis, and ocular diseases. In addition, it can be used in cell culture for cell therapy and tissue transplantation purposes. Platelet-derived growth factor, fibroblast growth factor, insulin-like growth factor, transforming growth factor β, and vascular endothelial growth factor are key PL growth factors playing a major role in cell proliferation, wound healing, and angiogenesis. In this paper, we scrutinized recent advances in using PL and PL-derived growth factors to treat diseases and in regenerative medicine, and the ability to replace PL with other hemoderivative materials.

Predictive factors for achieving independent walking in children with Guillain-Barre syndrome

BackgroundTo determine the predictors of achieving independent walking at 2 and 6 months after onset of weakness in children with Guillain-Barre syndrome (GBS).MethodsChildren with GBS admitted to the Tabriz Children's Hospital were studied prospectively. All patients had frequent clinical evaluations until achieving independent walking. Unaided walking at 2 and 6 months and factors influencing these outcomes were determined using both univariate and multiple analyses.ResultsBetween 2003 and 2014, 324 children (mean age: 5.3±3.66 years) were admitted. The mean duration to independent walking was 2.97±3.02 months; 90.5% of patients could walk independently at 6 months. In the univariate analysis, disability score of >3 (P=0.03), autonomic nerve involvement (P=0.003), cranial nerve involvement (P=0.008), and absent compound muscle action potential (CMAP; P=0.048) were found to be significantly associated with poor walking outcome at 6 months. In the multivariate analysis, cranial nerve involvement (P=0.008) and absence of CMAP (P=0.022) were independently associated with poor functional outcome.ConclusionDisability score >3, cranial and autonomic nerve involvement, and absence of CMAP were predictors of independent walking in childhood GBS in this study; early rehabilitation program may prevent further impairments secondary to immobility in these patients.

The effect of preoperative intravenous paracetamol administration on postoperative fever in pediatrics cardiac surgery

Background:

Post-operative fever is a common complication of cardiac operations, which is known to be correlated with a greater degree of cognitive dysfunction 6 weeks after cardiac surgery. The aim of the present study was to examine efficacy and safety of single dose intravenous Paracetamol in treatment of post-operative fever in children undergoing cardiac surgery.

Materials and Methods:

In this randomised, double-blind, placebo-controlled clinical trial, 80 children, aged 1-12 years, presenting for open heart surgery were entered in the trial and randomly allocated into two groups: Placebo and Paracetamol. After induction of anaesthesia, 15 mg/kg intravenous Paracetamol solution was infused during 1 h in the Paracetamol group. Patients in placebo group received 15 mg/kg normal saline infusion during the same time. Since the end of operation until next 24 h in intensive care unit, axillary temperature of the two group patients was recorded in 4-h intervals. Any fever that occurred during this period had been treated with Paracetamol suppository (125 mg) and the amount of antipyretic drug consumption for each patient had been recorded. In order to examine the safety of Paracetamol, patients were evaluated for drug complication at the same time.

Results:

Mean axillary temperature during first 24 h after operation was significantly lower in Paracetamol group compared with placebo group (P = 0.001). Overall fever incidence during 24 h after operation was higher in placebo group compared with Paracetamol group (P = 0.012). Of Paracetamol group patients, 42.5% compared with 15% of placebo group participants had no consumption of antipyretic agent (Paracetamol suppository) during 24 h after operation (P = 0.001).

Conclusion:

This study suggests that single dose administration of intravenous Paracetamol before paediatric cardiac surgeries using cardiopulmonary bypass; reduce mean body temperature in the first 24 h after operation.

Intravenous paracetamol versus intramuscular pethidine in relief of labour pain in primigravid women

BACKGROUND

Intramuscular pethidine is one of most common opioids used for labour analgesia. There are a number of concerns in the literature regarding the use of pethidine. The aim of this study is to compare analgesic efficacy of paracetamol with pethidine for labour pain in normal vaginal delivery.

MATERIALS AND METHODS

In this single-blinded, randomised control trial, 80 primigravid singleton women with full-term pregnancy candidate for normal vaginal delivery, were entered the trial and divided in to pethidine (A) and paracetamol (B) groups. At the time of admission, age and body mass index of mother and gestational age based on last day of period were recorded. In both groups, intravenous promethazine and hyoscine were administered to each patient at the first stage of delivery. From beginning of active phase of delivery, patients in group A received 50 mg intramuscular pethidine injection. At the same time patients in group B, received an intravenous solution infusion containing 1000 mg paracetamol and 300 cc of normal saline. After child birth, average labour pain was assessed using Visual Analogue Scale (VAS) by direct questioning from patient in both groups.

RESULTS

After patients' selection, 19 individual omitted during study due to exclusion criteria and finally 30 patients in paracetamol group and 31 patients in pethidine group remained to enter the trial. There was no significant difference in age and BMI of mothers between both groups (P > 0.05). Maternal age and labour duration in paracetamol group had no meaningful difference with maternal age and labour duration of patients in pethidine group (P > 0.05). The average VAS pain score was significantly lower in paracetamol comparing to that of pethidine group (8.366 out of 10, 9.612 out of 10, respectively, P < 0.001).

CONCLUSION

It is concluded that intravenous paracetamol is more effective than intramuscular pethidine to relief labour pain in normal vaginal delivery.