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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.
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Osteoartritis de la Rodilla , Plasma Rico en Plaquetas , Humanos , Femenino , Osteoartritis de la Rodilla/tratamiento farmacológico , Ácido Hialurónico , Resultado del Tratamiento , Inyecciones IntraarticularesRESUMEN
Skeletal problems are an increasing issue due to the increase in the global aging population. Different statistics reports show that today, the global population is aging that results in skeletal problems, increased health system costs, and even higher mortality associated with skeletal problems. Common treatments such as surgery and bone grafts are not always effective and in some cases, they can even cause secondary problems such as infections or improper repair. Cell therapy is a method that can be utilized along with common treatments independently. Mesenchymal stem cells (MSCs) are a very important and efficient source in terms of different diseases, especially bone problems. These cells are present in different tissues such as bone marrow, adipose tissue, umbilical cord, placenta, dental pulp, peripheral blood, amniotic fluid and others. Among the types of MSCs, bone marrow mesenchymal stem cells (BMMSCs) are the most widely used source of these cells, which have appeared to be very effective and promising in terms of skeletal diseases, especially compared to the other sources of MSCs. This study focuses on the specific potential and content of BMMSCs from which the specific capacity of these cells originates, and compares their osteogenic potential with other types of MSCs, and also the future directions in the application of BMMSCs as a source for cell therapy.
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Células Madre Mesenquimatosas , Osteogénesis , Embarazo , Femenino , Humanos , Huesos , Placenta , Células Cultivadas , Células Madre Mesenquimatosas/metabolismo , Células de la Médula Ósea/metabolismo , Diferenciación CelularRESUMEN
Today, communities and their health systems are facing with several challenges associated with the population ageing. Growing number of bone disorders is one of the most serious consequences of aging. According to the reports bone disorders won't just affect the elderly population. Mesenchymal stem cells (MSCs) are multipotent cells that could be derived from a variety of tissues including bone marrow, Wharton's Jelly, adipose tissue, and others. MSCs have been utilized in different researches in the field of regenerative medicine because of their immunosuppression and anti-inflammatory mechanisms (like: inhibiting the activity of antigen presenting cells, and suppressing the activity of T lymphocyte cells, macrophages, and so on.), migration to injured areas, and participation in healing processes. Bone marrow mesenchymal stem cells (BMMSCs) are a type of these cells which can be commonly used in bone research with the promising results. These cells function by releasing a large number of extracellular vesicles (EVs). Exosomes are the most major EVs products produced by BMMSCs. They have the same contents and properties as their parent cells; however, these structures don't have the defects of cell therapy. Proteins (annexins, tetraspannins, etc.), lipids (cholesterol, phosphoglycerides, etc.), nucleic acids (micro-RNAs, and etc.) and other substances are found in exosomes. Exosomes affect target cells, causing them to change their function. The features of BMMSC exosomes' mechanism in osteogenesis and bone regeneration (like: effects on other MSCs, osteoblasts, osteoclasts, and angiogenesis) and also the effects of their micro-RNAs on osteogenesis are the subject of the present review.
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Exosomas , Células Madre Mesenquimatosas , MicroARNs , Nanopartículas , Humanos , Médula Ósea , Células de la Médula Ósea , Regeneración Ósea , Diferenciación Celular , Exosomas/metabolismo , Células Madre Mesenquimatosas/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , OsteogénesisRESUMEN
Due to the widespread use of herbal medicine and evidence pointing to the health benefits of saffron supplementation, this review was performed to evaluate the effects of saffron supplementation on glycemic parameters and lipid profiles based on previous reviews. Relevant articles were retrieved from various databases, which included PubMed, Scopus, ProQuest, Web of Science, Embase, and Cochrane until 2020, with no date restrictions. The quality of the included reviews was assessed using the Assessment of Multiple Systematic Reviews (AMSTAR) checklist. Finally, of 877 obtained articles, eight reviews meeting the inclusion criteria were included for analysis. Among the eight included reviews, seven articles were meta-analyses. In addition, one review had an average quality while seven had a good quality. A narrative description of the included reviews was performed, while a network meta-analysis was not conducted. A brief review of the results was reported according to the weighted mean difference and mean difference. Seven included reviews assessed the effects of saffron or crocin supplementation on glycemic parameters, and six examined these effects on lipid profile parameters. Almost half of the articles reported significant effects of these supplements on glycemic parameters and lipid profiles. Taken together, results suggest that saffron supplementation may improve glycemic and lipid profile parameters; however, further high-quality studies are needed to confirm the clinical efficacy of saffron on glycemic parameters and lipid profiles.
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Crocus , Glucemia , Suplementos Dietéticos , Lípidos , Revisiones Sistemáticas como AsuntoRESUMEN
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.
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Vendajes , Úlcera por Presión , Exudados y Transudados , Humanos , Estudios Prospectivos , Cicatrización de HeridasRESUMEN
Autologous conditioned serum (ACS) is a blood-derived product that is prepared by the incubation of whole blood with medical-grade glass beads, resulting in serum enrichment in interleukin-1 receptor antagonist (IL-1Ra), anti-inflammatory cytokines (IL-4, IL-10, and IL-13), and high concentrations of growth factors. ACS has shown qualitatively and quantitatively better therapeutic effects than most established pharmacological treatments and surgery for joint diseases given its ability to both target the inflammatory cascade to decrease cartilage destruction as well as improve endogenous repair mechanisms. ACS application is simple and safe with limited adverse effects. This article reviews the role of ACS in degenerative joint disease, in addition to other inflammatory and autoimmune diseases, given its regenerative and immune-modulating properties.
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Proteína Antagonista del Receptor de Interleucina 1 , Suero , Citocinas/metabolismo , Péptidos y Proteínas de Señalización Intercelular , Suero/metabolismoRESUMEN
This study aimed to investigate the effect of nanomicelle curcumin (CUR), Nigella sativa oil (NS), and CUR and NS on the plasma levels of miR-21, miR-422a, and miR-503 expression in postmenopausal women with low bone mass density (BMD). This randomized, triple-blind, placebo-controlled clinical trial with a factorial design was conducted on 120 postmenopausal women from the integrated healthcare system, Tabriz-Iran. The BMD was determined using dual-energy X-ray absorptiometry (DEXA). Women were randomly divided into four groups of 30 participants: (a) CUR (80 mg) and placebo of NS, (b) NS (1,000 mg) and placebo of CUR, (c) CUR (80 mg) and NS (1,000 mg), and (d) both placebos (containing microcrystalline cellulose). The plasma level of miRNA-21, miRNA-422a, and miRNA-503 was determined by qRT-PCR. The expression level of miRNAs at the baseline was similar. At the end of the intervention, only the expression level of miRNA-21 changed statistically significantly between the four groups (p = .037) and between the NS and placebo groups (p = .005). Also, its expression in the two groups receiving NS (p = .037) and NS-CUR (p = .043) was significantly increased. NS and NS-CUR supplementation can increase the expression level of miRNA-21 in postmenopausal women with low bone density, and bring perspective to further studies of the target.
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Enfermedades Óseas Metabólicas , Curcumina , MicroARNs , Nigella sativa , Densidad Ósea , Curcumina/farmacología , Suplementos Dietéticos , Método Doble Ciego , Humanos , MicroARNs/genética , Aceites de Plantas , PosmenopausiaRESUMEN
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.
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Péptidos y Proteínas de Señalización Intercelular/uso terapéutico , Cicatrización de Heridas , Animales , Humanos , Péptidos y Proteínas de Señalización Intercelular/administración & dosificación , Nanopartículas/química , Trasplante de Células Madre/métodos , Ingeniería de Tejidos/métodos , Andamios del Tejido/químicaRESUMEN
Cytokines in tissues and physiological fluids can function as potentially suitable biomarkers. Cytokines are involved in stimulating different body responses including inflammatory response to external pathogens, regulating cell-to-cell communication, and maintaining tissue homeostasis. Consequently, cytokines are extensively used to monitor and predict disease progression and to track the outcome of patient treatment. The critical diagnosis of cytokine and chemokine biomarkers has been the focus of attention and it has been continuously directing the trajectory of related research to developing a novel sensing platform. Given the major challenges and constraints of the older identification methods including their high costs, low sensitivity, and high specificity, the development of biosensor technology as a simple and inexpensive tool with high sensitivity is quite attractive and interesting. The fundamental aim of this study is to present the state-of-the-art biosensor systems in order to detect different types of cytokines and to emphasize the role of these systems in the prevention, monitoring, and treatment of various cytokine-associated diseases.
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Técnicas Biosensibles , Citocinas/metabolismo , Animales , Biomarcadores/metabolismo , HumanosRESUMEN
Exosomes, as lipid nanostructure, are secreted by approximately all cell types within the body and actively involved in either short or long distances cell-cell communication in an autocrine and paracrine manner. Recently, exosomes are widely used as a nanocarrier for delivery of various nucleotide- or protein passed molecules including miRNA, and drugs into various cells, as a therapeutic strategy in a broad range of diseases including osteoarthritis. Osteoarthritis is one of the most common debilitating chronic musculoskeletal disorders with a multifaceted condition and an increasing impact on the quality of life. Therefore, this review aims to focus on the current knowledge of the exosomal miRNAs in the osteoarthritis to address their potential therapeutic application.
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Complejo Multienzimático de Ribonucleasas del Exosoma/genética , MicroARNs/genética , Osteoartritis/genética , Complejo Multienzimático de Ribonucleasas del Exosoma/fisiología , Exosomas/genética , Exosomas/metabolismo , Humanos , MicroARNs/metabolismo , Osteoartritis/fisiopatología , Osteoartritis/terapiaRESUMEN
Neurological disorders, such as stroke, are triggered by a loss of neurons and glial cells. Ischemic stroke remains a substantial problem for industrialized countries. Over the previous few decades our understanding about the pathophysiology of stroke has enhanced, nevertheless, more awareness is required to advance the field of stroke recovery. Existing therapies are incapable to adequately relief the disease outcome and are not appropriate to all patients. Meanwhile, the majority of patients continue to show neurological deficits even subsequent effective thrombolysis, recuperative therapies are immediately required that stimulate brain remodeling and repair once stroke damage has happened. Cell therapy is emergent as a hopeful new modality for increasing neurological recovery in ischemic stroke. Numerous types of stem cells from various sources have been identified and their possibility and efficiency for the treatment of stroke have been investigated. Stem cell therapy in patients with stroke using adult stem cells have been first practiced in clinical trials since 15 years ago. Even though stem cells have revealed a hopeful role in ischemic stroke in investigational studies besides early clinical pilot studies, cellular therapy in human is still at a primary stage. In this review, we summarize the types of stem cells, various delivery routes, and clinical application of stem cell-based therapy for stroke treatment.
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Isquemia Encefálica/terapia , Trasplante de Células Madre/métodos , Accidente Cerebrovascular/terapia , Células Madre Adultas/trasplante , Animales , Isquemia Encefálica/complicaciones , Isquemia Encefálica/fisiopatología , Ensayos Clínicos como Asunto , Células Madre Embrionarias/trasplante , Humanos , Trasplante de Células Madre Mesenquimatosas , Células-Madre Neurales/trasplante , Recuperación de la Función , Accidente Cerebrovascular/etiología , Accidente Cerebrovascular/fisiopatologíaRESUMEN
INTRODUCTION: Many scientists have revealed the association between vitamin D deficiency and gestational diabetes mellitus (GDM). The purpose of this review was to evaluate the impact of vitamin D supplementation on maternal and neonatal health measures in GDM. METHODS: A comprehensive systematic literature search in the electronic databases including Cochrane Central Register of Controlled Trials, MEDLINE (PubMed), Scopus, Web of Sciences, EMBASE, Google Scholar, Clininaltrial.gov, and ProQuest as well as SID, Magiran, Irandoc, and Iranmedex for Persian literature review carried out up to January 2018. All RCTs and quasi-experimental studies that compared vitamin D supplementation with placebo or without supplementation on GDM women were included in this review. RESULTS: Five randomized controlled trials involving 310 women were included in the meta-analysis. There were significant differences in fasting Plasma Glucose (FPG; mean difference [MD] -12.54, 95% CI -15.03 to -10.05; 3 trials, 223 participants); total cholesterol (TC; MD -24.77, 95% CI -32.57 to -16.98; 3 trials, 223 participants); low-density lipoprotein (LDL) cholesterol (MD -18.92, 95% CI -24.97 to -12.88; 3 trials, 223 participants); high-density lipoprotein (HDL) cholesterol (MD, 3.87, 95% CI 1.20-6.55; 3 trials, 223 participants); high sensitivity C-reactive protein -(hs-CRP; MD -1.35, 95% CI -2.41 to -0.28; 2 trials, 126 participants); and Newborns' hyperbilirubinemia (OR 0.33, 95% CI 0.13-0.80; 2 trials, 129 participants). CONCLUSIONS: Supplementation of GDM women with vitamin D may lead to an improvement in FPG, TC, LDL, HDL, hs-CRP serum levels as well as in newborns' hyperbilirubinemia.
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Diabetes Gestacional/tratamiento farmacológico , Suplementos Dietéticos , Vitamina D/administración & dosificación , Glucemia/análisis , Proteína C-Reactiva/análisis , Colesterol/sangre , Femenino , Humanos , Hiperbilirrubinemia/prevención & control , Recién Nacido , Embarazo , Ensayos Clínicos Controlados Aleatorios como Asunto , Triglicéridos/sangreRESUMEN
This was an observational, longitudinal study investigated the association between anxiety and depression in trimesters of pregnancy and early postpartum with weight retention 1 year after childbirth. Sixty-two pregnant women aged 18-35 years with a BMI of 35 or higher and 245 pregnant women with normal BMI (BMI 18.5-24.9 kg/m2) were recruited at their initial prenatal visit in the health centers. The Edinburgh Postnatal Depression Scale (EPDS) and Beck Anxiety Inventory (BAI-II) were completed in five time points, the first, second, third trimester of pregnancy, 6-8 weeks and 12 months after delivery. Pre-pregnancy weight and weight retention at 1 year postpartum was measured. A significant relationship was found between first trimester (adjusted mean difference: aMD 3.416; 95% CI 1.392-5.441) and postpartum (aMD 3.042; 95% CI 0.538-5.547) depression as well as first trimester's anxiety (aMD 3.050; 95% CI 0.631-5.470) with weight retention at 1 year after childbirth.
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Ansiedad/complicaciones , Depresión Posparto/complicaciones , Ganancia de Peso Gestacional , Adolescente , Adulto , Femenino , Humanos , Estudios Longitudinales , Embarazo , Primer Trimestre del Embarazo/psicología , Escalas de Valoración Psiquiátrica , Factores de Riesgo , Adulto JovenRESUMEN
OBJECTIVES: Plantar fasciitis is a self-limiting condition, but can be painful and disabling. Among the different treatments which exist, corticosteroid injections are effective and popular. Extracorporeal shock wave therapy (ESWT) is another treatment modality used for resistant conditions. In this study, the authors evaluated the efficacy of radial ESWT versus corticosteroid injections in the treatment of chronic plantar fasciitis. DESIGN: Randomized clinical trial. SETTING: Physical medicine and rehabilitation research center in a university hospital. SUBJECTS: Forty patients with plantar fasciitis who did not respond to conservative treatment. METHODS: Patients were allocated to radial ESWT with 2000 shock waves/session of 0.2 mJ/mm(2) (n = 20) or local methylprednisolone injections (n = 20). Pain in the morning and during the day based on a visual analog scale (VAS), functional abilities using the foot function index (FFI), and satisfaction were evaluated before treatment and at 4 and 8 weeks after treatment. RESULTS: Patients (average age: 42.1± 8.20) received five sessions of ESWT or single steroid injection. Changes in the VAS in morning and during the day and the FFI throughout the study period were significant in both groups (P < 0.001). ESWT group had a higher reduction in VAS in morning and better function in FFI, but these changes were insignificant statistically [FFI decreased to 19.65 ± 21.26 points (67.4% improvement) in ESWT vs 31.50 ± 20.53 points (47.7%) in injection group at week 8, P = 0.072)]. Good or excellent results in the opinions of patients were achieved in 55% of ESWT and 30% of corticosteroid injection groups (P = 0.11). CONCLUSION: Both interventions caused improvement in pain and functional ability 2 months after treatment. Although inter-group differences were not significant, the FFI was improved more with ESWT and patients were more satisfied with ESWT, thus shockwave therapy seems a safe alternative for management of chronic plantar fasciitis.
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Fascitis Plantar/terapia , Ondas de Choque de Alta Energía/uso terapéutico , Corticoesteroides/uso terapéutico , Adulto , Femenino , Humanos , Inyecciones , Masculino , Persona de Mediana Edad , Método Simple Ciego , Resultado del TratamientoRESUMEN
[Purpose] The aim of this study was to investigate the efficacy of neuromobilization combined with routine physiotherapy in patients with carpal tunnel syndrome through subjective, physical, and electrophysiological studies. [Subjects and Methods] Twenty patients with carpal tunnel syndrome (totally 32 hands) were assigned two groups: treatment and control groups. In both groups, patients received the routine physiotherapy. In addition to the routine physiotherapy, patients in the treatment group received neuromobilization. The symptoms severity scale, visual analogue scale, functional status scale, Phalen's sign, median nerve tension test, and median nerve distal sensory and motor latency were assessed. [Results] There were significant improvements in the symptoms severity scale, visual analogue scale, median nerve tension test, and Phalen's sign in both groups. However, the functional status scale and median nerve distal motor latency were significantly improved only in the treatment group. [Conclusion] Neuromobilization in combination with routine physiotherapy improves some clinical findings more effectively than routine physiotherapy. Therefore, this combination can be used as an alternative effective non-invasive treatment for patients with carpal tunnel syndrome.
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Until the availability of an effective and practical vaccine, there is a serious need to recognize alternative treatments for coronavirus disease 2019 (COVID-19). This study aimed to determine whether major ozonated autohemotherapy (MOAH) can improve the clinical and paraclinical parameters in critically-ill patients with COVID-19 requiring mechanical ventilation. In this controlled trial, we enrolled 40 critically ill COVID-19 patients receiving invasive mechanical ventilation. The enrolled patients were then randomized into the MOAH and control groups. The patients in the MOAH group received MOAH three times per week (10 times in total) in addition to routine treatment and standard critical supportive care. Patients in the control group were only given regular treatment and standard critical supportive care. The patients in the MOAH group had more days of breathing with no aid than those in the control group. Moreover, the length of stay in the intensive-care unit was significantly lower in the MOAH group than in the control group. MOAH resulted in higher ventilation-free days and less intensive-care unit stay compared with the control treatment. In COVID-19 patients undergoing mechanical ventilation, MOAH with routine treatment resulted in more ventilator-free days and less intensive-care unit stay compared with the standard therapy.
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COVID-19 , Humanos , COVID-19/terapia , Respiración Artificial/efectos adversos , Proyectos Piloto , Unidades de Cuidados IntensivosRESUMEN
BACKGROUND: Omega-3 fatty acids (FAs) are essential long-chain polyunsaturated fatty acids (LCPUFAs) that are essential for optimal health and development. OBJECTIVE: The present study aimed to evaluate the effectiveness of maternal fish oil (containing omega-3 LCPUFA) intake from 21th week of pregnancy to 30 days postpartum for neurodevelopment and growth of infants at 9 and 12 months. METHODS: This was a follow-up study of a triple-blinded clinical trial. The study population was 9-- month-old infants. Their mothers were randomly divided into two groups of 75 people with a 1:1 ratio to take one fish oil supplement or a placebo daily. The anthropometric indicators of infants at months 9 and 12 and neurodevelopment at month 12 by the ASQ questionnaire were measured. In the fish oil and placebo groups, respectively, 73 and 71 infants at nine months, as well as 71 and 69 at 12 months, were analyzed. RESULTS: No statistically significant impact was observed following consuming omega-3 capsules on the neurodevelopmental domains, growth parameters, and the profile of maternal serum FAs (p > 0.05) except DHA. Neurodevelopmental problems were illustrated in one case in the intervention group and two cases in the placebo group. CONCLUSION: Perinatal relatively low-dose omega-3 LCPUFAs supplements indicated no statistically significant impacts on the growth and neurodevelopment of 9- and 12-month-old infants in a population with low consumption of marine products. Further studies investigating the effect of higher doses of omega-3 LCPUFAs are suggested.
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OBJECTIVES: Studies that have examined the correlation between reproductive history and knee osteoarthritis (KOA) have had heterogeneous findings. We aimed to investigate the reproductive history and its relationship with pain and physical dysfunction in women with KOA. This case-control study, comprising 204 women aged 50 and older with and without KOA recruited through random cluster sampling, was executed from February 2018 to October 2018 in the health centers of Tabriz City. The reproductive history questionnaire was completed for the subjects in two groups. Pain intensity and functional dysfunction caused by KOA were evaluated using the Visual analogue scale and the Western Ontario and McMaster index, respectively. RESULTS: The women's age of menarche in the case group was significantly lower (p = 0.031), and the number of pregnancies (p = 0.017) and the average duration of breastfeeding (p = 0.039) were substantially higher than those of the control group. Older age at the first menstruation (OR = 0.851) was a protective factor, and higher parity (OR = 8.726) was a risk factor for KOA. In the women with KOA, the younger age of the mother at the birth of the first alive baby and the longer duration of breastfeeding were associated with higher pain intensity and functional disorders.
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Osteoartritis de la Rodilla , Historia Reproductiva , Humanos , Femenino , Osteoartritis de la Rodilla/fisiopatología , Osteoartritis de la Rodilla/epidemiología , Estudios de Casos y Controles , Persona de Mediana Edad , Anciano , Factores de Riesgo , Menarquia/fisiología , Encuestas y Cuestionarios , Lactancia Materna , Dimensión del Dolor , Embarazo , ParidadRESUMEN
Purpose: Exosomes are natural nanoparticles that participate in intercellular communication through molecular transport. Recently, due to their membrane vesicular structure and surface proteins, exosomes have been used extensively in the research field of drug delivery. Osteoporosis is an inflammation in which the cellular balance of bone tissue is disturbed that reduces bone density and making bone prone to abnormal fractures with small amount of force. Utilizing estrogen is one of the main therapeutic strategies for osteoporosis. Despite the positive effects of estrogen on bone tissue, changes in the natural estrogen levels of the body can cause a number of diseases such as different types of cancer. Therefore, designing a therapeutic system which controls more accurate tissue targeting of estrogen seems to be a rational and promising practical approach. Methods: In this study, bone marrow mesenchymal stem cells (BMMSCs)-derived exosomes were loaded by estradiol using two different methods of drug loading, namely incubation and sonication methods and then the survival effects of the drug loaded exosomes on BMMSCs was investigated. Results: Examination of size, shape, and surface factors of exosomes in different states (pure exosomes and drug-loaded exosomes) showed that the round morphology of exosomes was preserved in all conditions. However, the particles size increased significantly when loaded by sonication method. The increased survival of BMMSCs was noted with estradiol-loaded exosomes when compared to the control group. Conclusion: The results suggest that estradiol-loaded exosomes have potential to be used as nano-drug carriers in the treatment of osteoporosis.
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BACKGROUND: Despite some advances, treatment of trigeminal neuralgia remains a significant challenge. This study determines the efficacy and safety of autologous conditioned serum (Orthokine) injection into the foramen oval to treat refractory trigeminal neuralgia. CASE PRESENTATION: This is a consecutive case series from the Pain and Palliative Care Department of Imam Reza University Hospital, Tabriz, Iran. Eleven Iranian patients, eligible according to the inclusion and exclusion criteria, aged 45.64 ±â11.58 years (Four male and seven female, all Iranian) with established classical trigeminal neuralgia were injected with Orthokine (2 mL per injection) once a week for three consecutive weeks (total of four injections). Numeric rating scale scores for facial pain intensity and also carbamazepine daily dose were confirmed at pretreatment (T0) and at week 1 (T1), week 2 (T2), week 3 (T3), week 4 (T4), and month 2 (T5) posttreatment. Pain intensity was significantly reduced in the first 3 weeks of follow-up in comparison with baseline (T0 to T3) (8.18 ± 1.99 to 2.82 ± 2.13, p < 0.001), an effect that was retained at week 4 (T4) and month 2 (T5) follow-ups (2.82 ± 2.13 to 3.36 ± 2.69, p = 0.886). Carbamazepine consumption was significantly reduced in the first 3 weeks of follow-up in comparison with baseline (T0 to T3) (636.36 ± 307.48 to 200.00 ± 296.64, p = 0.003), an effect that was retained at week 4 and month 2 follow-ups (200.00 ± 296.64 to 200.00 ± 282.84, p = 0.802). There were no serious adverse events in participants. CONCLUSION: Orthokine injection led to consistent pain relief and reduced carbamazepine dosage in patients with trigeminal neuralgia, with acceptable safety.