Tribbles homolog 2 (Trib2), a pseudo serine/threonine kinase in tumorigenesis and stem cell fate decisions
|
01.12.2021 |
Fang Y.
Zekiy A.O.
Ghaedrahmati F.
Timoshin A.
Farzaneh M.
Anbiyaiee A.
Khoshnam S.E.
|
Cell Communication and Signaling |
10.1186/s12964-021-00725-y |
0 |
Ссылка
The family of Tribbles proteins play many critical nonenzymatic roles and regulate a wide range of key signaling pathways. Tribbles homolog 2 (Trib2) is a pseudo serine/threonine kinase that functions as a scaffold or adaptor in various physiological and pathological processes. Trib2 can interact with E3 ubiquitin ligases and control protein stability of downstream effectors. This protein is induced by mitogens and enhances the propagation of several cancer cells, including myeloid leukemia, liver, lung, skin, bone, brain, and pancreatic. Thus, Trib2 can be a predictive and valuable biomarker for the diagnosis and treatment of cancer. Recent studies have illustrated that Trib2 plays a major role in cell fate determination of stem cells. Stem cells have the capacity to self-renew and differentiate into specific cell types. Stem cells are important sources for cell-based regenerative medicine and drug screening. Trib2 has been found to increase the self-renewal ability of embryonic stem cells, the reprogramming efficiency of somatic cells, and chondrogenesis. In this review, we will focus on the recent advances of Trib2 function in tumorigenesis and stem cell fate decisions. [MediaObject not available: see fulltext.]
Читать
тезис
|
Mesenchymal stem/stromal cell-derived exosomes in regenerative medicine and cancer; overview of development, challenges, and opportunities
|
01.12.2021 |
Hassanzadeh A.
Rahman H.S.
Markov A.
Endjun J.J.
Zekiy A.O.
Chartrand M.S.
Beheshtkhoo N.
Kouhbanani M.A.J.
Marofi F.
Nikoo M.
Jarahian M.
|
Stem Cell Research and Therapy |
10.1186/s13287-021-02378-7 |
0 |
Ссылка
Recently, mesenchymal stem/stromal cells (MSCs) and their widespread biomedical applications have attracted great consideration from the scientific community around the world. However, reports have shown that the main populations of the transplanted MSCs are trapped in the liver, spleen, and lung upon administration, highlighting the importance of the development of cell-free therapies. Concerning rising evidence suggesting that the beneficial effects of MSC therapy are closely linked to MSC-released components, predominantly MSC-derived exosomes, the development of an MSC-based cell-free approach is of paramount importance. The exosomes are nano-sized (30–100 nm) lipid bilayer membrane vesicles, which are typically released by MSCs and are found in different body fluids. They include various bioactive molecules, such as messenger RNA (mRNA), microRNAs, proteins, and bioactive lipids, thus showing pronounced therapeutic competence for tissues recovery through the maintenance of their endogenous stem cells, the enhancement of regenerative phenotypic traits, inhibition of apoptosis concomitant with immune modulation, and stimulation of the angiogenesis. Conversely, the specific roles of MSC exosomes in the treatment of various tumors remain challenging. The development and clinical application of novel MSC-based cell-free strategies can be supported by better understanding their mechanisms, classifying the subpopulation of exosomes, enhancing the conditions of cell culture and isolation, and increasing the production of exosomes along with engineering exosomes to deliver drugs and therapeutic molecules to the target sites. In the current review, we deliver a brief overview of MSC-derived exosome biogenesis, composition, and isolation methods and discuss recent investigation regarding the therapeutic potential of MSC exosomes in regenerative medicine accompanied by their double-edged sword role in cancer.
Читать
тезис
|
A paradigm shift in cell-free approach: the emerging role of MSCs-derived exosomes in regenerative medicine
|
01.12.2021 |
Moghadasi S.
Elveny M.
Rahman H.S.
Suksatan W.
Jalil A.T.
Abdelbasset W.K.
Yumashev A.V.
Shariatzadeh S.
Motavalli R.
Behzad F.
Marofi F.
Hassanzadeh A.
Pathak Y.
Jarahian M.
|
Journal of Translational Medicine |
10.1186/s12967-021-02980-6 |
0 |
Ссылка
Recently, mesenchymal stem/stromal cells (MSCs) due to their pro-angiogenic, anti-apoptotic, and immunoregulatory competencies along with fewer ethical issues are presented as a rational strategy for regenerative medicine. Current reports have signified that the pleiotropic effects of MSCs are not related to their differentiation potentials, but rather are exerted through the release of soluble paracrine molecules. Being nano-sized, non-toxic, biocompatible, barely immunogenic, and owning targeting capability and organotropism, exosomes are considered nanocarriers for their possible use in diagnosis and therapy. Exosomes convey functional molecules such as long non-coding RNAs (lncRNAs) and micro-RNAs (miRNAs), proteins (e.g., chemokine and cytokine), and lipids from MSCs to the target cells. They participate in intercellular interaction procedures and enable the repair of damaged or diseased tissues and organs. Findings have evidenced that exosomes alone are liable for the beneficial influences of MSCs in a myriad of experimental models, suggesting that MSC- exosomes can be utilized to establish a novel cell-free therapeutic strategy for the treatment of varied human disorders, encompassing myocardial infarction (MI), CNS-related disorders, musculoskeletal disorders (e.g. arthritis), kidney diseases, liver diseases, lung diseases, as well as cutaneous wounds. Importantly, compared with MSCs, MSC- exosomes serve more steady entities and reduced safety risks concerning the injection of live cells, such as microvasculature occlusion risk. In the current review, we will discuss the therapeutic potential of MSC- exosomes as an innovative approach in the context of regenerative medicine and highlight the recent knowledge on MSC- exosomes in translational medicine, focusing on in vivo researches.
Читать
тезис
|
A paradigm shift in cell-free approach: the emerging role of MSCs-derived exosomes in regenerative medicine
|
01.12.2021 |
Moghadasi S.
Elveny M.
Rahman H.S.
Suksatan W.
Jalil A.T.
Abdelbasset W.K.
Yumashev A.V.
Shariatzadeh S.
Motavalli R.
Behzad F.
Marofi F.
Hassanzadeh A.
Pathak Y.
Jarahian M.
|
Journal of Translational Medicine |
10.1186/s12967-021-02980-6 |
0 |
Ссылка
Recently, mesenchymal stem/stromal cells (MSCs) due to their pro-angiogenic, anti-apoptotic, and immunoregulatory competencies along with fewer ethical issues are presented as a rational strategy for regenerative medicine. Current reports have signified that the pleiotropic effects of MSCs are not related to their differentiation potentials, but rather are exerted through the release of soluble paracrine molecules. Being nano-sized, non-toxic, biocompatible, barely immunogenic, and owning targeting capability and organotropism, exosomes are considered nanocarriers for their possible use in diagnosis and therapy. Exosomes convey functional molecules such as long non-coding RNAs (lncRNAs) and micro-RNAs (miRNAs), proteins (e.g., chemokine and cytokine), and lipids from MSCs to the target cells. They participate in intercellular interaction procedures and enable the repair of damaged or diseased tissues and organs. Findings have evidenced that exosomes alone are liable for the beneficial influences of MSCs in a myriad of experimental models, suggesting that MSC- exosomes can be utilized to establish a novel cell-free therapeutic strategy for the treatment of varied human disorders, encompassing myocardial infarction (MI), CNS-related disorders, musculoskeletal disorders (e.g. arthritis), kidney diseases, liver diseases, lung diseases, as well as cutaneous wounds. Importantly, compared with MSCs, MSC- exosomes serve more steady entities and reduced safety risks concerning the injection of live cells, such as microvasculature occlusion risk. In the current review, we will discuss the therapeutic potential of MSC- exosomes as an innovative approach in the context of regenerative medicine and highlight the recent knowledge on MSC- exosomes in translational medicine, focusing on in vivo researches.
Читать
тезис
|
Unsaturated and thiolated derivatives of polysaccharides as functional matrixes for tissue engineering and pharmacology: A review
|
01.05.2021 |
Farion I.A.
Burdukovskii V.F.
Kholkhoev B.C.
Timashev P.S.
|
Carbohydrate Polymers |
10.1016/j.carbpol.2021.117735 |
0 |
Ссылка
© 2021 Elsevier Ltd This review examines investigations into the functionalization of polysaccharides by substituents containing multiple (C[dbnd]C) bonds and thiol (SH) groups that are prone to (co)polymerization in the presence of thermal, redox and photoinitiators or Michael addition reactions. A comparative analysis of the approaches to grafting the mentioned substituents onto the polysaccharide macromolecules was conducted. The use of the modified polysaccharides for the design of the 3D structures, including for the development of the pore bearing matrixes of cells or scaffolds utilized in regenerative medicine was examined. These modified polymers were also examined toward the design of excipient matrixes in pharmacological compositions, including with controllable release of active pharmaceuticals, as wel as of antibacterial and antifungal agents and others. In addition, a few examples of the use of modified derivatives in other areas are given.
Читать
тезис
|
Potential immuno-nanomedicine strategies to fight COVID-19 like pulmonary infections
|
01.02.2021 |
Bonam S.R.
Kotla N.G.
Bohara R.A.
Rochev Y.
Webster T.J.
Bayry J.
|
Nano Today |
10.1016/j.nantod.2020.101051 |
0 |
Ссылка
© 2020 Elsevier Ltd COVID-19, coronavirus disease 2019, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic. At the time of writing this (October 14, 2020), more than 38.4 million people have become affected, and 1.0 million people have died across the world. The death rate is undoubtedly correlated with the cytokine storm and other pathological pulmonary characteristics, as a result of which the lungs cannot provide sufficient oxygen to the body's vital organs. While diversified drugs have been tested as a first line therapy, the complexity of fatal cases has not been reduced so far, and the world is looking for a treatment to combat the virus. However, to date, and despite such promise, we have received very limited information about the potential of nanomedicine to fight against COVID-19 or as an adjunct therapy in the treatment regimen. Over the past two decades, various therapeutic strategies, including direct-acting antiviral drugs, immunomodulators, a few non-specific drugs (simple to complex), have been explored to treat Acute Respiratory Distress Syndrome (ARDS), Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS), influenza, and sometimes the common flu, thus, correlating and developing specific drugs centric to COVID-19 is possible. This review article focuses on the pulmonary pathology caused by SARS-CoV-2 and other viral pathogens, highlighting possible nanomedicine therapeutic strategies that should be further tested immediately.
Читать
тезис
|
Potential immuno-nanomedicine strategies to fight COVID-19 like pulmonary infections
|
01.02.2021 |
Bonam S.R.
Kotla N.G.
Bohara R.A.
Rochev Y.
Webster T.J.
Bayry J.
|
Nano Today |
10.1016/j.nantod.2020.101051 |
0 |
Ссылка
© 2020 Elsevier Ltd COVID-19, coronavirus disease 2019, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic. At the time of writing this (October 14, 2020), more than 38.4 million people have become affected, and 1.0 million people have died across the world. The death rate is undoubtedly correlated with the cytokine storm and other pathological pulmonary characteristics, as a result of which the lungs cannot provide sufficient oxygen to the body's vital organs. While diversified drugs have been tested as a first line therapy, the complexity of fatal cases has not been reduced so far, and the world is looking for a treatment to combat the virus. However, to date, and despite such promise, we have received very limited information about the potential of nanomedicine to fight against COVID-19 or as an adjunct therapy in the treatment regimen. Over the past two decades, various therapeutic strategies, including direct-acting antiviral drugs, immunomodulators, a few non-specific drugs (simple to complex), have been explored to treat Acute Respiratory Distress Syndrome (ARDS), Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS), influenza, and sometimes the common flu, thus, correlating and developing specific drugs centric to COVID-19 is possible. This review article focuses on the pulmonary pathology caused by SARS-CoV-2 and other viral pathogens, highlighting possible nanomedicine therapeutic strategies that should be further tested immediately.
Читать
тезис
|
Effects of plasma concentration of micro-RNA Mir-27b and CYP3A4*22 on equilibrium concentration of alprazolam in patients with anxiety disorders comorbid with alcohol use disorder
|
20.05.2020 |
Zastrozhin M.S.
Skryabin V.Y.
Smirnov V.V.
Petukhov A.E.
Pankratenko E.P.
Zastrozhina A.K.
Grishina E.A.
Ryzhikova K.A.
Bure I.V.
Golovinskii P.A.
Koporov S.G.
Bryun E.A.
Sychev D.A.
|
Gene |
10.1016/j.gene.2020.144513 |
0 |
Ссылка
© 2020 Elsevier B.V. Alprazolam is used in the treatment of patients with anxiety disorders comorbid with alcohol use disorder. Some proportion of these patients does not respond adequately to treatment with alprazolam, while many of them experience dose-dependent adverse drug reactions. Results of the previous studies have shown that CYP3A is involved in the biotransformation of alprazolam, the activity of which is dependent, inter alia, on the polymorphism of the encoding gene. Objective: The objective of our study was to investigate the effect of 99366316G>A polymorphism of the CYP3A4 gene on the concentration/dose indicator of alprazolam in patients with anxiety disorders comorbid with alcohol use disorder, using findings on enzymatic activity of CYP3A (as evaluated by the 6-beta-hydroxy-cortisol/cortisol ratio measurement) and on CYP3A4 expression level obtained by measuring the miR-27b plasma concentration levels in patients with anxiety disorders comorbid with alcoholism. Material and methods: Our study enrolled 105 patients with anxiety disorders comorbid with alcohol use disorder (age - 37.8±14.6 years). Therapy included alprazolam in an average daily dose of 5.6±2.4 mg per day. Treatment efficacy was evaluated using the psychometric scales. Therapy safety was assessed using the UKU Side-Effect Rating Scale. For genotyping and estimation of the microRNA (miRNA) plasma levels, we performed the real-time polymerase chain reaction. The activity of CYP3A was evaluated using the HPLC-MS/MS method by the content of the endogenous substrate of the given isoenzyme and its metabolite in urine (6- beta-hydroxy-cortisol/cortisol). Therapeutic drug monitoring (TDM) has been performed using HPLC-MS/MS. Results: Our study revealed the statistically significant results in terms of the treatment efficacy evaluation (HAMA scores at the end of the treatment course): (GG) 3.0 [2.0; 5.0] and (GA) 4.0 [4.0; 5.0], p = 0.007; at the same time, the statistical significance in the safety profile was not obtained (the UKU scores): (GG) 3.0 [2.0; 3.8] and (GA) 3.0 [1.5; 4.0], p = 0.650. We revealed a statistical significance for concentration/dose indicator of alprazolam in patients with different genotypes: (GG) 1.583 [0.941; 2.301] and (GA) 2.888 [2.305; 4.394], p = 0.001). Analysis of the results of the pharmacotranscriptomic part of the study didn't show the statistically significant difference in the miR-27b plasma levels in patients with different genotypes: (GG) 25.6 [20.4; 28.8], (GA) 25.7 [19.7; 33.1], p = 0.423. At the same time, correlation analysis revealed a statistically significant relationship between the alprazolam efficacy profile evaluated by changes in HAMA scale scores and the miR-27b plasma concentration: rs = 0.20, p = 0.042. Also, we didn't reveal the correlation between the miRNA concentration and safety profile: rs = 0.15, p = 0.127. In addition, we revealed the relationship between the CYP3A enzymatic activity (as evaluated by 6-beta-hydroxycortisol/ cortisol ratio measurement) and the miR-27b plasma concentration: rs = −0.27, p = 0.006. At the same time, correlation analysis revealed a statistically significant relationship between the alprazolam concentration and the miR-27b plasma concentration: rs = 0.28, p = 0.003. Conclusion: The effect of genetic polymorphism of the CYP3A4 gene on the efficacy and safety profiles of alprazolam was demonstrated in a group of 105 patients with anxiety disorders comorbid with alcohol use disorder. At the same time, miR-27b remains a promising biomarker for assessing the level of CYP3A4 expression, because it correlates with the encoded isoenzyme's activity.
Читать
тезис
|
Effects of plasma concentration of micro-RNA Mir-27b and CYP3A4*22 on equilibrium concentration of alprazolam in patients with anxiety disorders comorbid with alcohol use disorder
|
20.05.2020 |
Zastrozhin M.S.
Skryabin V.Y.
Smirnov V.V.
Petukhov A.E.
Pankratenko E.P.
Zastrozhina A.K.
Grishina E.A.
Ryzhikova K.A.
Bure I.V.
Golovinskii P.A.
Koporov S.G.
Bryun E.A.
Sychev D.A.
|
Gene |
10.1016/j.gene.2020.144513 |
0 |
Ссылка
© 2020 Elsevier B.V. Alprazolam is used in the treatment of patients with anxiety disorders comorbid with alcohol use disorder. Some proportion of these patients does not respond adequately to treatment with alprazolam, while many of them experience dose-dependent adverse drug reactions. Results of the previous studies have shown that CYP3A is involved in the biotransformation of alprazolam, the activity of which is dependent, inter alia, on the polymorphism of the encoding gene. Objective: The objective of our study was to investigate the effect of 99366316G>A polymorphism of the CYP3A4 gene on the concentration/dose indicator of alprazolam in patients with anxiety disorders comorbid with alcohol use disorder, using findings on enzymatic activity of CYP3A (as evaluated by the 6-beta-hydroxy-cortisol/cortisol ratio measurement) and on CYP3A4 expression level obtained by measuring the miR-27b plasma concentration levels in patients with anxiety disorders comorbid with alcoholism. Material and methods: Our study enrolled 105 patients with anxiety disorders comorbid with alcohol use disorder (age - 37.8±14.6 years). Therapy included alprazolam in an average daily dose of 5.6±2.4 mg per day. Treatment efficacy was evaluated using the psychometric scales. Therapy safety was assessed using the UKU Side-Effect Rating Scale. For genotyping and estimation of the microRNA (miRNA) plasma levels, we performed the real-time polymerase chain reaction. The activity of CYP3A was evaluated using the HPLC-MS/MS method by the content of the endogenous substrate of the given isoenzyme and its metabolite in urine (6- beta-hydroxy-cortisol/cortisol). Therapeutic drug monitoring (TDM) has been performed using HPLC-MS/MS. Results: Our study revealed the statistically significant results in terms of the treatment efficacy evaluation (HAMA scores at the end of the treatment course): (GG) 3.0 [2.0; 5.0] and (GA) 4.0 [4.0; 5.0], p = 0.007; at the same time, the statistical significance in the safety profile was not obtained (the UKU scores): (GG) 3.0 [2.0; 3.8] and (GA) 3.0 [1.5; 4.0], p = 0.650. We revealed a statistical significance for concentration/dose indicator of alprazolam in patients with different genotypes: (GG) 1.583 [0.941; 2.301] and (GA) 2.888 [2.305; 4.394], p = 0.001). Analysis of the results of the pharmacotranscriptomic part of the study didn't show the statistically significant difference in the miR-27b plasma levels in patients with different genotypes: (GG) 25.6 [20.4; 28.8], (GA) 25.7 [19.7; 33.1], p = 0.423. At the same time, correlation analysis revealed a statistically significant relationship between the alprazolam efficacy profile evaluated by changes in HAMA scale scores and the miR-27b plasma concentration: rs = 0.20, p = 0.042. Also, we didn't reveal the correlation between the miRNA concentration and safety profile: rs = 0.15, p = 0.127. In addition, we revealed the relationship between the CYP3A enzymatic activity (as evaluated by 6-beta-hydroxycortisol/ cortisol ratio measurement) and the miR-27b plasma concentration: rs = −0.27, p = 0.006. At the same time, correlation analysis revealed a statistically significant relationship between the alprazolam concentration and the miR-27b plasma concentration: rs = 0.28, p = 0.003. Conclusion: The effect of genetic polymorphism of the CYP3A4 gene on the efficacy and safety profiles of alprazolam was demonstrated in a group of 105 patients with anxiety disorders comorbid with alcohol use disorder. At the same time, miR-27b remains a promising biomarker for assessing the level of CYP3A4 expression, because it correlates with the encoded isoenzyme's activity.
Читать
тезис
|
Intelligent System for Health Saving
|
01.01.2020 |
Krut’ko V.
Dontsov V.
Markova A.
|
Advances in Intelligent Systems and Computing |
10.1007/978-3-030-12082-5_19 |
0 |
Ссылка
© 2020, Springer Nature Switzerland AG. Multifactorial nature of human health and need in personifying the approach to each person in the health saving programs should use modern information and cognitive technologies for the tasks of health assessment and control. The article presents a concept, basic methods, and a structure of intelligent system of health saving (InSyHS), created by the authors to solve these tasks. This system implements the intelligent Internet technology based on modern cognitive methods and information about health, considering all possible health-determining essential factors (nutrition, physical activity, lifestyle, social and nature environment), and doing people to form an active relation to health with the possibility of self-diagnostics (physical and mental reserves, stress, psycho-emotional characteristics), optimization and personalization of personal health saving programs.
Читать
тезис
|
Detection of counterfeit and substandard tablets using non-invasive NIR and chemometrics - A conceptual framework for a big screening system
|
01.12.2019 |
Rodionova O.
Titova A.
Balyklova K.
Pomerantsev A.
|
Talanta |
10.1016/j.talanta.2019.120150 |
0 |
Ссылка
© 2019 Elsevier B.V. A detailed step-by-step procedure for revealing counterfeit and substandard tablets is presented. Non-invasive NIR measurements are used for data collection. The entire complex multi-layer object as the “packaging -coating-core” system requires special treatment at all stages of model development and validation. The influence of each layer is studied. A procedure that covers data collection, construction of the model, as well as special internal and external validation is advocated here. A special set of objects called ‘nearest of kin’ (NoK) collection, which consists of generic medications nearest to the target objects, assists in reliable assessment of the model specificity. The whole procedure summarizes the results obtained for over a thousand different dosage forms of tablets. Two real-world examples of genuine and counterfeit medicines are considered. The first example presents uncoated tablets with high concentration of active ingredient and fairly simple set excipients. Its NoK collection consists of six different manufacturers. The second example presents coated tablets with low concentration of active ingredient and rather complex set of excipients. Its NoK collection is presented by seven different manufacturers.
Читать
тезис
|
The role of first trimester fetal heart rate in the prediction of gestational diabetes: A multicenter study
|
01.12.2019 |
Sirico A.
Lanzone A.
Mappa I.
Sarno L.
Słodki M.
Pitocco D.
Zullo F.
Maruotti G.
Rizzo G.
|
European Journal of Obstetrics and Gynecology and Reproductive Biology |
10.1016/j.ejogrb.2019.10.019 |
0 |
Ссылка
© 2019 Elsevier B.V. Objective: Early pregnancy models for prediction of GDM have been proposed, mostly using anamnestic and biochemical parameters. The aim of our study was to evaluate the strength of association of first trimester fetal heart rate (FHR) in predicting the development of gestational diabetes (GDM). Study design: We considered in our analysis singleton non-diabetic pregnant women who underwent a first trimester screening at 11–14 weeks. Data on maternal age, BMI, cigarette smoking, NT, FHR, CRL, DV-PVI, β-hCG and PAPP-A were included in the analysis. Multivariate logistic regression analysis was used to estimate the association between maternal characteristics and first-trimester ultrasound measurements and GDM. We evaluated the efficacy of different models for the prediction of GDM. Results: We considered 603 women, of whom 199 (33%) were subsequently diagnosed with GDM. ROC analysis showed that first trimester FHR was highly predictive of GDM (AUC 0.809, 95% CI 0.769–0.849, p < 0.001). At FPR of 20%, first trimester FHR had a detection rate of 65.2% for GDM (positive likelihood ratio: 3.26; negative likelihood ratio: 0.43), which increased to 89.5% at FPR of 40% (positive likelihood ratio: 2.24; negative likelihood ratio: 0.17). When considering as threshold 162 bpm, FHR showed detection rate of 76.9%, specificity of 67.1% and negative predictive value of 85.5% for GDM. Conclusion: This is the first study to highlight the potential role of first trimester FHR as early predictor of GDM. In our cohort, a threshold of 162 bpm has shown high detection rate and NPV for GDM.
Читать
тезис
|
Extracellular matrix-based hydrogels obtained from human tissues: A work still in progress
|
01.10.2019 |
Gazia C.
Tamburrini R.
Asthana A.
Chaimov D.
Muir S.
Marino D.
Delbono L.
Villani V.
Perin L.
Di Nardo P.
Robertson J.
Orlando G.
|
Current Opinion in Organ Transplantation |
10.1097/MOT.0000000000000691 |
0 |
Ссылка
© 2019 Wolters Kluwer Health, Inc. Purpose of reviewThe current review summarizes contemporary decellularization and hydrogel manufacturing strategies in the field of tissue engineering and regenerative medicine.Recent findingsDecellularized extracellular matrix (ECM) bioscaffolds are a valuable biomaterial that can be purposed into various forms of synthetic tissues such as hydrogels. ECM-based hydrogels can be of animal or human origin. The use of human tissues as a source for ECM hydrogels in the clinical setting is still in its infancy and current literature is scant and anecdotal, resulting in inconclusive results.SummaryThus far the methods used to obtain hydrogels from human tissues remains a work in progress. Gelation, the most complex technique in obtaining hydrogels, is challenging due to remarkable heterogeneity of the tissues secondary to interindividual variability. Age, sex, ethnicity, and preexisting conditions are factors that dramatically undermine the technical feasibility of the gelation process. This is contrasted with animals whose well defined anatomical and histological characteristics have been selectively bred for the goal of manufacturing hydrogels.
Читать
тезис
|
A Systematic Review and International Web-Based Survey of Randomized Controlled Trials in the Perioperative and Critical Care Setting: Interventions Increasing Mortality
|
01.10.2019 |
Sartini C.
Lomivorotov V.
Pisano A.
Riha H.
Baiardo Redaelli M.
Lopez-Delgado J.
Pieri M.
Hajjar L.
Fominskiy E.
Likhvantsev V.
Cabrini L.
Bradic N.
Avancini D.
Wang C.
Lembo R.
Novikov M.
Paternoster G.
Gazivoda G.
Alvaro G.
Roasio A.
Wang C.
Severi L.
Pasin L.
Mura P.
Musu M.
Silvetti S.
Votta C.
Belletti A.
Corradi F.
Brusasco C.
Tamà S.
Ruggeri L.
Yong C.
Pasero D.
Mancino G.
Spadaro S.
Conte M.
Lobreglio R.
Di Fraja D.
Saporito E.
D'Amico A.
Sardo S.
Ortalda A.
Yavorovskiy A.
Riefolo C.
Monaco F.
Bellomo R.
Zangrillo A.
Landoni G.
|
Journal of Cardiothoracic and Vascular Anesthesia |
10.1053/j.jvca.2019.03.022 |
0 |
Ссылка
© 2019 Elsevier Inc. Objective: Reducing mortality is a key target in critical care and perioperative medicine. The authors aimed to identify all nonsurgical interventions (drugs, techniques, strategies) shown by randomized trials to increase mortality in these clinical settings. Design: A systematic review of the literature followed by a consensus-based voting process. Setting: A web-based international consensus conference. Participants: Two hundred fifty-one physicians from 46 countries. Interventions: The authors performed a systematic literature search and identified all randomized controlled trials (RCTs) showing a significant increase in unadjusted landmark mortality among surgical or critically ill patients. The authors reviewed such studies during a meeting by a core group of experts. Studies selected after such review advanced to web-based voting by clinicians in relation to agreement, clinical practice, and willingness to include each intervention in international guidelines. Measurements and Main Results: The authors selected 12 RCTs dealing with 12 interventions increasing mortality: diaspirin-crosslinked hemoglobin (92% of agreement among web voters), overfeeding, nitric oxide synthase inhibitor in septic shock, human growth hormone, thyroxin in acute kidney injury, intravenous salbutamol in acute respiratory distress syndrome, plasma-derived protein C concentrate, aprotinin in high-risk cardiac surgery, cysteine prodrug, hypothermia in meningitis, methylprednisolone in traumatic brain injury, and albumin in traumatic brain injury (72% of agreement). Overall, a high consistency (ranging from 80% to 90%) between agreement and clinical practice was observed. Conclusion: The authors identified 12 clinical interventions showing increased mortality supported by randomized controlled trials with nonconflicting evidence, and wide agreement upon clinicians on a global scale.
Читать
тезис
|
Modern ideas about juvenile dermatomyositis part 2: Activity assessment and treatment
|
01.09.2019 |
Podchernyaeva N.
Konevina M.
Tikhaya M.
|
Pediatriya - Zhurnal im G.N. Speranskogo |
10.24110/0031-403X-2019-98-5-135-146 |
0 |
Ссылка
© 2019, Pediatria Ltd. All rights reserved. In the article the authors present relevant information on the criteria for assessing the activity of juvenile dermatomyositis (JDM) and modern approaches to its treatment. In clinical practice, various scales are currently used to assess the overall JDM activity and severity of damage to various organs, primarily muscles and skin. The article provides modern recommendations for JDM treatment: The use of glucocorticosteroids, disease-modifying antirheumatic drugs (methotrexate, calcineurin inhibitors, cyclophosphamide, mycophenolate mofetil, azathioprine, hydroxychloroquine, intravenous immunoglobulin), genetically engineered drugs (rituximab, infliximab, adalimumab, golimumab, certolizumab, etanercept), as well as promising new drugs and methods of maintenance therapy. The modern JDM treatment algorithm is described.
Читать
тезис
|
LIFT-bioprinting, is it worth it?
|
01.09.2019 |
Antoshin A.
Churbanov S.
Minaev N.
Zhang D.
Zhang Y.
Shpichka A.
Timashev P.
|
Bioprinting |
10.1016/j.bprint.2019.e00052 |
2 |
Ссылка
© 2019 Elsevier B.V. To date, laser-induced forward transfer (LIFT) is one of the most developing areas in bioprinting. It is based on a precise nozzle-free laser-assisted hydrogel microdroplet transfer. Although this technique was first mentioned in the 1980s, it started to gain popularity in biomedicine only a decade ago. While the interest in LIFT bioprinting is constantly growing, it is essential to provide a framework of its possibilities and limitations. This review aims to facilitate the search for a common language between physicists and biologists and thus become a short guide to using LIFT technology for biomedicine. Here, we compared various points such as lasers, bioinks components, collector substrate, post-treatment, and printing processes that are crucial for LIFT bioprinting and applied in published studies on it. The core of this review is the discussion of biological and physical aspects to fabricate tissues and organs and the not-known difficulties that can be encountered during the laser printing process and were not given sufficient attention earlier.
Читать
тезис
|
About stem cell research in dentistry: Many doubts and too many pitfalls still affect the regenerative dentistry
|
20.10.2018 |
Tatullo M.
|
International Journal of Medical Sciences |
|
3 |
Ссылка
© Ivyspring International Publisher. Stem cells (SCs) research is one of the most promising approaches to regenerative medicine. Our understanding of SCs biology and their potential role in tissue repairing has notably increased during the last few years. Mesenchymal stem cells (MSCs) are present in almost all human tissues, including oral and dental tissues (dental-derived stem cells or DDSCs). Despite many doubts and too many pitfalls still affect regenerative dentistry; however, it represents an exciting challenge for the next generations of young dentists. Educating and training in regenerative medicine the new generation of researchers is of utmost importance, albeit often underestimated: regenerative dentistry represents a big opportunity for the next generations of researchers and clinicians, and this review report underlines that dental schools should pay more attention to teachings of strategic subjects, such as cell biology, molecular biology and tissue engineering.
Читать
тезис
|
Radioactive (<sup>90</sup>Y) upconversion nanoparticles conjugated with recombinant targeted toxin for synergistic nanotheranostics of cancer
|
25.09.2018 |
Guryev E.
Volodina N.
Shilyagina N.
Gudkov S.
Balalaeva I.
Volovetskiy A.
Lyubeshkin A.
Sen A.
Ermilov S.
Vodeneev V.
Petrov R.
Zvyagin A.
Alferov Z.
Deyev S.
|
Proceedings of the National Academy of Sciences of the United States of America |
|
10 |
Ссылка
© 2018 National Academy of Sciences. All rights reserved. We report combined therapy using upconversion nanoparticles (UCNP) coupled to two therapeutic agents: beta-emitting radionuclide yttrium-90 (90Y) fractionally substituting yttrium in UCNP, and a fragment of the exotoxin A derived from Pseudomonas aeruginosa genetically fused with a targeting designed ankyrin repeat protein (DARPin) specific to HER2 receptors. The resultant hybrid complex UCNP-R-T was tested using human breast adenocarcinoma cells SK-BR-3 overexpressing HER2 receptors and immunodeficient mice, bearing HER2-positive xenograft tumors. The photophysical properties of UCNPs enabled background-free imaging of the UCNP-R-T distribution in cells and animals. Specific binding and uptake of UCNP complexes in SK-BR-3 cells was observed, with separate 90Y- and PE40-induced cytotoxic effects characterized by IC50 140 μg/mL (UCNP-R) and 5.2 μg/mL (UCNP-T), respectively. When both therapeutic agents were combined into UCNP-R-T, the synergetic effect increased markedly, ∼2200-fold, resulting in IC50 = 0.0024 μg/mL. The combined therapy with UCNP-R-T was demonstrated in vivo.
Читать
тезис
|
School and university medicine in Europe: State, issues and solutions (some results of xix european congress on school and university medicine)
|
01.09.2018 |
Kuchma V.
Naryshkina E.
|
Pediatriya - Zhurnal im G.N. Speranskogo |
|
0 |
Ссылка
© 2018; Pediatria Ltd. All rights reserved. An expert analysis of lectures and reports at the XIX Congress of the European Union of School and University Medicine and Health (Belgium, Leuven, 2017) presents issues of school and university medicine: modern approaches to assessment of children’s health; ensuring equal access of all children, adolescents and youth to medical care during the period of education in accordance with the Convention on the Rights of the Child, regardless of socioeconomic status, ethnicity and cultural level; the effectiveness of health services, friendly to students, assessment of medical care for students quality; the role of parents in organizing medical care for students; the role of the media in shaping the identity of children in the process of growth and development. The concept of «positive health» focuses on positive and healthy aspects, and not only on medical treatment. The main elements of «positive health» include: physical functioning, daily routine, mental health, social activity, intentions, quality of life. In Europe prevails a program approach to prevention based on targeted work with relevant groups of children and adolescents. There is a need for assessing the impact of environmental factors, access to care and education for children with special needs, providing preventive care for vulnerable children, infants and their families, promoting healthy behavior among students, special approaches to providing mental health to students through available health services and various programs, incl. based on the welfare of children and interventions in the early stages of emotional problems considering risk factors that can be identified in educational institutions. Modern main directions of research in the field of health protection and promotion of students in educational organizations are due to large-scale changes in the environment (pronounced urbanization), the new way of life and quality of life for children and adolescents, their life conditions in a rapidly changing world combined with unfavorable trends in health and development indicators of the growing up generation of Russians.
Читать
тезис
|
Advanced laser technologies for regenerative medicine
|
13.08.2018 |
Timashev P.
Minaev N.
Bagratashvili V.
|
Proceedings - International Conference Laser Optics 2018, ICLO 2018 |
|
0 |
Ссылка
© 2018 IEEE. This presentation will discusses recent studies on two photon polymerization process and examples of its application in TE.
Читать
тезис
|