Transplantation of Adipose-derived Cells for Periodontal Regeneration: A Systematic Review

2019 ◽  
Vol 14 (6) ◽  
pp. 504-518 ◽  
Author(s):  
Dilcele Silva Moreira Dziedzic ◽  
Bassam Felipe Mogharbel ◽  
Priscila Elias Ferreira ◽  
Ana Carolina Irioda ◽  
Katherine Athayde Teixeira de Carvalho
Keyword(s):  
Systematic Review ◽  
Animal Models ◽  
Platelet Rich Plasma ◽  
Periodontal Regeneration ◽  
In Vitro Studies ◽  
In Vivo Studies ◽  
Cell Sources ◽  
Study Designs

This systematic review evaluated the transplantation of cells derived from adipose tissue for applications in dentistry. SCOPUS, PUBMED and LILACS databases were searched for in vitro studies and pre-clinical animal model studies using the keywords “ADIPOSE”, “CELLS”, and “PERIODONTAL”, with the Boolean operator “AND”. A total of 160 titles and abstracts were identified, and 29 publications met the inclusion criteria, 14 in vitro and 15 in vivo studies. In vitro studies demonstrated that adipose- derived cells stimulate neovascularization, have osteogenic and odontogenic potential; besides adhesion, proliferation and differentiation on probable cell carriers. Preclinical studies described improvement of bone and periodontal healing with the association of adipose-derived cells and the carrier materials tested: Platelet Rich Plasma, Fibrin, Collagen and Synthetic polymer. There is evidence from the current in vitro and in vivo data indicating that adipose-derived cells may contribute to bone and periodontal regeneration. The small quantity of studies and the large variation on study designs, from animal models, cell sources and defect morphology, did not favor a meta-analysis. Additional studies need to be conducted to investigate the regeneration variability and the mechanisms of cell participation in the processes. An overview of animal models, cell sources, and scaffolds, as well as new perspectives are provided for future bone and periodontal regeneration study designs.

Recovery Of Platelet Function After Aspirin Ingestion: In Vivo And In Vitro Studies

1981 ◽  
Author(s):  
B A Bradlow ◽  
N Chetty ◽  
M Birnbaum
Keyword(s):  
Platelet Function ◽  
Recovery Of Function ◽  
Platelet Rich Plasma ◽  
Recovery Period ◽  
In Vitro Studies ◽  
In Vivo Studies ◽  
Partial Recovery ◽  
Mean Values

Blood was taken from normal volunteers before and two hours after a 600mg oral dose of aspirin (ASA). Platelet rich plasma (PRP) was prepared from both samples. Mixtures of normal and ASA treated PRP were tested for aggregation responses and for production of thromboxane B2 (TXB2) by RIA (New England Nuclear). Normal aggregation responses were found when the mixture contained 26% of normal platelets (NP) with ADP, 40% NP with adrenalin, 54% NP with collagen and 52% NP with arachidonic acid (AA)(Mean Values). TXB2 production in the mixtures increased when the proportion of normal platelets was raised above 10 to 30%. These findings indicate partial restoration of platelet function by an admixture of 10-20% NP to ASA treated platelets although 50% NP was necessary to restore all functions tested. In vivo studies on seven volunteers given 300mg ASA showed partial recovery of malondialdehyde production after 72 hours, partial return of aggregation responses to collagen, ADP, adrenalin and AA at 96 hours and partial or full return of aggregation responses in all subjects by 120 hours. Since new platelets enter the circulation at the rate of 10-15% per day the results of our in vitro studies suggest that some recovery of platelet function might occur as soon as 24 hours after a dose of ASA and full recovery within 3-5 days. The longer recovery period indicated by the in vivo studies may be attributable to the effect of ASA on megakaryocyte cyclooxygenase.Conclusion: ASA administered once every 24 hours may be sufficient to suppress platelet function adequately and continuously but partial recovery of function might occur 48-72 hours after ASA ingestion.

scholarly journals Sex Specific Determinants in Osteoarthritis: A Systematic Review of Preclinical Studies

2020 ◽  
Vol 21 (10) ◽  
pp. 3696 ◽  
Author(s):  
Deyanira Contartese ◽  
Matilde Tschon ◽  
Monica De Mattei ◽  
Milena Fini
Keyword(s):  
Gene Expression ◽  
Systematic Review ◽  
Sex Differences ◽  
Animal Models ◽  
Molecular Mechanisms ◽  
Joint Disease ◽  
In Vivo Studies ◽  
Preclinical Studies

Osteoarthritis (OA) is a highly prevalent joint disease that primarily affects about 10% of the world’s population over 60 years old. The purpose of this study is to systematically review the preclinical studies regarding sex differences in OA, with particular attention to the molecular aspect and gene expression, but also to the histopathological aspects. Three databases (PubMed, Scopus, and Web of Knowledge) were screened for eligible studies. In vitro and in vivo papers written in English, published in the last 11 years (2009–2020) were eligible. Participants were preclinical studies, including cell cultures and animal models of OA, evaluating sex differences. Independent extraction of articles and quality assessments were performed by two authors using predefined data fields and specific tools (Animals in Research Reporting In Vivo Experiments (ARRIVE) guideline and Systematic Review Centre for Laboratory animal Experimentation (SYRCLE) tool). Twenty-three studies were included in the review: 4 in vitro studies, 18 in vivo studies, and 1 both in vitro and in vivo study. From in vitro works, sex differences were found in the gene expression of inflammatory molecules, hormonal receptors, and in responsiveness to hormonal stimulation. In vivo research showed a great heterogeneity of animal models mainly focused on the histopathological aspects rather than on the analysis of sex-related molecular mechanisms. This review highlights that many gaps in knowledge still exist; improvementsin the selection and reporting of animal models, the use of advanced in vitro models, and multiomics analyses might contribute to developing a personalized gender-based medicine.

scholarly journals Evaluation of in vitro and in vivo anthelmintic efficacy of Cyperus compressus Linn., a traditionally used anthelmintic plant in parasite-animal models

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Amar Deep Soren ◽  
Arun Kumar Yadav
Keyword(s):  
Animal Models ◽  
Plant Extract ◽  
In Vitro Studies ◽  
In Vivo Studies ◽  
Phytochemical Analysis ◽  
Root Extract ◽  
Reference Drug ◽  
Anthelmintic Efficacy

Abstract Background The decoction of the roots of Cyperus compressus (Cyperaceae) is used to treat helminth infection by the Santhal tribe of Assam. The study evaluated the anthelmintic efficacy claims of the plant C. compressus through pre-clinical in vitro and in vivo studies employing available parasite-animal models such as Hymenolepis diminuta-Wistar rat (cestode) and Syphacia obvelata-Swiss mice (nematode) models. Results Phytochemical analysis revealed the presence of alkaloids, glycosides, reducing sugars, flavonoids, terpenoids, tannins, and steroids. In vitro studies were conducted employing H. diminuta and S. obvelata. In vitro studies against H. diminuta revealed mortality of parasites at 8.3 ± 0.05 h at the highest concentration of C. compressus methanolic root extract (30 mg/ml), whereas reference drug praziquantel (PZQ), showed mortality at 5.84 ± 0.01 h. Against S. obvelata, in the same concentration of the extract, mortality of parasites occurred in a much later time of 24.13 ± 0.03 h, whereas in the reference drug albendazole (ABZ), the parasites showed mortality at 7.24 ± 0.08 h. In vivo studies against H. diminuta revealed 61.74% reduction in the eggs per gram (EPG) counts and 24% reduction in worm counts at the highest dose of 700 mg/kg body weight (b.w.) of plant extract. Against S. obvelata, at 700 mg/kg b.w., 28.92% and 33.85% reduction in EPG and worm counts were recorded respectively. Conclusion Although the reference drugs showed better in vitro and in vivo efficacy, the plant extract showed a better in vitro efficacy against cestode parasite compared to its nematode counterpart indicating that it possesses a better cestocidal efficacy. EPG reductions were higher against H. diminuta, whereas worm count reduction was higher against S. obvelata. The findings justify the use of C. compressus as an anthelmintic in the traditional medicine of the Santhals of India.

scholarly journals Antiproliferative activity of thiazole and oxazole derivatives: A systematic review of in vitro and in vivo studies

2021 ◽  
Vol 138 ◽  
pp. 111495
Author(s):  
Nancy Y. Guerrero-Pepinosa ◽  
María C. Cardona-Trujillo ◽  
Sandra C. Garzón-Castaño ◽  
Luz Angela Veloza ◽  
Juan C. Sepúlveda-Arias
Keyword(s):  
Systematic Review ◽  
Antiproliferative Activity ◽  
In Vivo Studies ◽  
Oxazole Derivatives

Focus on the therapeutic efficacy of 3BNC117 against HIV-1: In vitro studies, in vivo studies, clinical trials and challenges

2017 ◽  
Vol 52 ◽  
pp. 44-50 ◽  
Author(s):  
Zhi-Jun Liu ◽  
Jing Bai ◽  
Feng-Li Liu ◽  
Xiang-Yang Zhang ◽  
Jing-Zhang Wang
Keyword(s):  
Clinical Trials ◽  
Therapeutic Efficacy ◽  
In Vitro Studies ◽  
In Vivo Studies ◽  
Hiv 1

scholarly journals Medicinal Plants with Anti-Trichomonas vaginalis Activity in Iran: A Systematic Review

2019 ◽  
Author(s):  
Hajar ZIAEI HEZARJARIBI ◽  
Najmeh NADEALI ◽  
Mahdi FAKHAR ◽  
Masoud SOOSARAEI
Keyword(s):  
Systematic Review ◽  
Medicinal Plants ◽  
Trichomonas Vaginalis ◽  
Scientific Information ◽  
Medicinal Herbs ◽  
In Vivo Studies ◽  
Eligibility Criteria ◽  
Sexually Transmitted

Background: Trichomoniasis, due to Trichomonas vaginalis, is one of the most common sexually transmitted parasitic diseases in the world such as Iran. This systematic review aimed to explore the studies evaluating the medicinal herbs with anti- T. vaginalis activity which used in Iran. Methods: Articles published in 4 Persian and 4 English databases were obtained between 2000 and 2015 including Google Scholar, PubMed, Science Direct, Scopus, Magiran, Barakatkns (formerly IranMedex), Elm net, and SID (Scientific Information Database). Studies out of Iran, studies on animal models and articles on other parasite species than T. vaginalis were excluded from this review. Results: Twenty-one articles including in vitro experiments, met our eligibility criteria. Thoroughly, 26 types of plants were examined against T. vaginalis. Medicinal herbs such as Artemisia, Zataria multiflora, and Lavandula angustifolia are remarkably effective on T. vaginalis. As such, use of other parts of these plants in different concentrations and timelines is recommended for future in vivo studies. Conclusion: The present systematic review provides comprehensive and useful information about Iranian medicinal plants with anti-T. vaginalis activity, which would be examined in the future experimental and clinical trials and herbal combination therapy.

Viscum album (L) extracts in cancer treatment: a systematic review of in vitro and in vivo studies

2021 ◽  
Vol 14 (2) ◽  
pp. 52-52
Author(s):  
Aloisio Cunha de Carvalho ◽  
Leoni Villano Bonamin
Keyword(s):  
Systematic Review ◽  
Experimental Studies ◽  
Pharmaceutical Preparations ◽  
Viscum Album ◽  
In Vitro Models ◽  
In Vivo Studies ◽  
Pubmed Database ◽  
Anti Cancer

Background: Several reviews about phytotherapy and homeopathy have been published in the last years, including Viscum album (VA.L). VA is a parasite plant whose extract has anti-cancer proprieties and is used alone or in combination with conventional chemotherapy. Methods: We performed a systematic review about the in vivo and in vitro models described in the literature, including veterinary clinical trials. The literature was consulted from Pubmed database. Results: There are several kinds of pharmaceutical preparations about VA and their active principles used in experimental studies, lectin being frequently studied (alone or as an extract compound). More than 50% of available literature about VA is related to the lectin effects. On the other hand, the effects of viscotoxins are less studied. Among the in vivo experimental studies about VA and its compounds, the B16 murine melanoma is the most used model, followed by Ehrlich, Walker and Dalton tumors. The results point to the apoptotic effects, metastasis control and tumor regression. Some veterinary clinical studies about the use of VA in the treatment of sarcoid, fibrosarcoma and neuroblastoma are quoted in literature too, with interesting results. Considering the in vitro models, our review revealed that NALM6 leukemia cells, B16 melanoma and NC1-H460 lung carcinoma were the most studied tumor models, apoptosis signals being the most important findings. Only one study verified immunoglobulin and interleukin production. All consulted papers were related to phytotherapy preparations only. Conclusions: Although the literature about the anti-cancer activity of VA extract and its lectins is enough, there is a marked lack of information about viscotoxin activities and about the effects of homeopathic preparations of this plant on animal tumors and on in vitro cultivated tumor cells.

Comparative lyophilized platelet-rich plasma wafer and powder for wound-healing enhancement: formulation, in vitro and in vivo studies

2019 ◽  
Vol 45 (8) ◽  
pp. 1379-1387 ◽  
Author(s):  
Ghada E. Yassin ◽  
Marwa H. S. Dawoud ◽  
Reham Wasfi ◽  
Ahmed Maher ◽  
Ahmed M. Fayez
Keyword(s):  
Wound Healing ◽  
Platelet Rich Plasma ◽  
In Vivo Studies

The Control Of Antithrombotic Prophylaxis And Therapy: A Pro-Coagulant Effect Of Heparin

1981 ◽  
Author(s):  
E Szwarcer ◽  
R Giuliani ◽  
E Martinez Aquino
Keyword(s):  
Blood Coagulation ◽  
Antithrombin Iii ◽  
Fixed Time ◽  
In Vitro Studies ◽  
In Vivo Studies ◽  
Clotting Factors ◽  
Platelet Poor Plasma ◽  
Normal Platelet

For studying heparin effect on blood coagulation and on inhibitors, the drug was added at increasing amounts to a normal platelet poor plasma (PPP), and to plasmas of patients with variable amounts of clotting factors (cirrhotic, pregnant, etc) -IN VITRO STUDIES-, and infused to the same individuals -IN VIVO STUDIES-. Modifications on two clotting assays (KCCT-TT) were compared to heparin potentiating effect on AntiXa (Denson & Bonnar tech).When studied IN VITRO, the sensibility of KCCT, TT, and AntiXa techniques for heparin measurement was similar. IN VIVO, an apparently greater sensibility using AntiXa technique was observed.For determining if this phenomena was related to a specific enhanced potentiating effect of the inhibitor against Xa, exerted by heparin IN VIVO, experiences were repeated IN VITRO and IN VIVO, measuring heparin effect on KCCT, TT, and on the inhibitor, studied against Xa and thrombin. A personal technique was used for the measurement of Antithrombin III heparin potentiating effect, using diluted platelet poor test plasma, heated (56°C 15’) and incubated with thrombin during a fixed time, and reading residual thrombin on citrated human PPP. IN VITRO, all techniques were similar in their ability to show heparin presence.IN VIVO, the potentiating effect of heparin on the inhibitor, measured against Xa or thrombin, was greater than the changes obtained on KCCT or TT.So, AntiXa-Antithrombin III techniques seem to be more sensitive for heparin measurement IN VIVO.This “dissociation” of results in between the potentiating effect on the inhibitor, that is not simultaneously exerted on global coagulation, is interpreted as a heparin pro-coagulant effect, exerted by the drug IN VIVO.

scholarly journals Engineering Silicone Rubbers for In Vitro Studies: Creating AAA Models and ILT Analogues With Physiological Properties

2009 ◽  
Vol 132 (1) ◽  
Author(s):  
T. J. Corbett ◽  
B. J. Doyle ◽  
A. Callanan ◽  
M. T. Walsh ◽  
T. M. McGloughlin
Keyword(s):  
In Vitro Studies ◽  
In Vivo Studies ◽  
Aortic Tissue ◽  
Element Analysis ◽  
Future Design ◽  
Change Behavior ◽  
Physiological Properties ◽  
Diameter Change

In vitro studies of abdominal aortic aneurysm (AAA) have been widely reported. Frequently mock artery models with intraluminal thrombus (ILT) analogs are used to mimic the in vivo AAA. While the models used may be physiological, their properties are frequently either not reported or investigated. This study is concerned with the testing and characterization of previously used vessel analog materials and the development of new materials for the manufacture of AAA models. These materials were used in conjunction with a previously validated injection molding technique to manufacture AAA models of ideal geometry. To determine the model properties (stiffness (β) and compliance), the diameter change of each AAA model was investigated under incrementally increasing internal pressures and compared with published in vivo studies to determine if the models behaved physiologically. A FEA study was implemented to determine if the pressure-diameter change behavior of the models could be predicted numerically. ILT analogs were also manufactured and characterized. Ideal models were manufactured with ILT analog internal to the aneurysm region, and the effect of the ILT analog on the model compliance and stiffness was investigated. The wall materials had similar properties (Einit 2.22 MPa and 1.57 MPa) to aortic tissue at physiological pressures (1.8 MPa (from literature)). ILT analogs had a similar Young’s modulus (0.24 MPa and 0.33 MPa) to the medial layer of ILT (0.28 MPa (from literature)). All models had aneurysm sac compliance (2.62–8.01×10−4/mm Hg) in the physiological range (1.8–9.4×10−4/mm Hg (from literature)). The necks of the AAA models had similar stiffness (20.44–29.83) to healthy aortas (17.5±5.5 (from literature)). Good agreement was seen between the diameter changes due to pressurization in the experimental and FEA wall models with a maximum difference of 7.3% at 120 mm Hg. It was also determined that the inclusion of ILT analog in the sac of the models could have an effect on the compliance of the model neck. Ideal AAA models with physiological properties were manufactured. The behavior of these models due to pressurization was predicted using finite element analysis, validating this technique for the future design of realistic physiological AAA models. Addition of ILT analogs in the aneurysm sac was shown to affect neck behavior. This could have implications for endovascular AAA repair due to the importance of the neck for stent-graft fixation.

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