scholarly journals Histological assessment of regenerative endodontic treatment in animal studies with different scaffolds: A systematic review

2017 ◽  
Vol 33 (4) ◽  
pp. 235-244 ◽  
Author(s):  
Milad Altaii ◽  
Lindsay Richards ◽  
Giampiero Rossi-Fedele
Keyword(s):  
Systematic Review ◽  
Animal Studies ◽  
Endodontic Treatment ◽  
Histological Assessment ◽  
Regenerative Endodontic Treatment

scholarly journals Mitochondrial transplantation therapy for ischemia reperfusion injury: a systematic review of animal and human studies

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Kei Hayashida ◽  
Ryosuke Takegawa ◽  
Muhammad Shoaib ◽  
Tomoaki Aoki ◽  
Rishabh C. Choudhary ◽  
...  
Keyword(s):  
Systematic Review ◽  
Reperfusion Injury ◽  
Animal Studies ◽  
Ischemia Reperfusion Injury ◽  
Myocardial Dysfunction ◽  
Ischemia Reperfusion ◽  
Meta Analysis ◽  
Relevant Literature ◽  
Human Studies ◽  
Cochrane Library

Abstract Background Mitochondria are essential organelles that provide energy for cellular functions, participate in cellular signaling and growth, and facilitate cell death. Based on their multifactorial roles, mitochondria are also critical in the progression of critical illnesses. Transplantation of mitochondria has been reported as a potential promising approach to treat critical illnesses, particularly ischemia reperfusion injury (IRI). However, a systematic review of the relevant literature has not been conducted to date. Here, we systematically reviewed the animal and human studies relevant to IRI to summarize the evidence for mitochondrial transplantation. Methods We searched MEDLINE, the Cochrane library, and Embase and performed a systematic review of mitochondrial transplantation for IRI in both preclinical and clinical studies. We developed a search strategy using a combination of keywords and Medical Subject Heading/Emtree terms. Studies including cell-mediated transfer of mitochondria as a transfer method were excluded. Data were extracted to a tailored template, and data synthesis was descriptive because the data were not suitable for meta-analysis. Results Overall, we identified 20 animal studies and two human studies. Among animal studies, 14 (70%) studies focused on either brain or heart IRI. Both autograft and allograft mitochondrial transplantation were used in 17 (85%) animal studies. The designs of the animal studies were heterogeneous in terms of the route of administration, timing of transplantation, and dosage used. Twelve (60%) studies were performed in a blinded manner. All animal studies reported that mitochondrial transplantation markedly mitigated IRI in the target tissues, but there was variation in biological biomarkers and pathological changes. The human studies were conducted with a single-arm, unblinded design, in which autologous mitochondrial transplantation was applied to pediatric patients who required extracorporeal membrane oxygenation (ECMO) for IRI–associated myocardial dysfunction after cardiac surgery. Conclusion The evidence gathered from our systematic review supports the potential beneficial effects of mitochondrial transplantation after IRI, but its clinical translation remains limited. Further investigations are thus required to explore the mechanisms of action and patient outcomes in critical settings after mitochondrial transplantation. Systematic review registration The study was registered at UMIN under the registration number UMIN000043347.

scholarly journals TRAIL and Cardiovascular Disease—A Risk Factor or Risk Marker: A Systematic Review

2021 ◽  
Vol 10 (6) ◽  
pp. 1252
Author(s):  
Katarzyna Kakareko ◽  
Alicja Rydzewska-Rosołowska ◽  
Edyta Zbroch ◽  
Tomasz Hryszko
Keyword(s):  
Systematic Review ◽  
Risk Factor ◽  
Ischemic Stroke ◽  
Cardiovascular Diseases ◽  
Animal Studies ◽  
Gestational Hypertension ◽  
Cochrane Library ◽  
Major Adverse Cardiovascular Events ◽  
Risk Marker ◽  
Artery Disease

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a pro-apoptotic protein showing broad biological functions. Data from animal studies indicate that TRAIL may possibly contribute to the pathophysiology of cardiomyopathy, atherosclerosis, ischemic stroke and abdominal aortic aneurysm. It has been also suggested that TRAIL might be useful in cardiovascular risk stratification. This systematic review aimed to evaluate whether TRAIL is a risk factor or risk marker in cardiovascular diseases (CVDs) focusing on major adverse cardiovascular events. Two databases (PubMed and Cochrane Library) were searched until December 2020 without a year limit in accordance to the PRISMA guidelines. A total of 63 eligible original studies were identified and included in our systematic review. Studies suggest an important role of TRAIL in disorders such as heart failure, myocardial infarction, atrial fibrillation, ischemic stroke, peripheral artery disease, and pulmonary and gestational hypertension. Most evidence associates reduced TRAIL levels and increased TRAIL-R2 concentration with all-cause mortality in patients with CVDs. It is, however, unclear whether low TRAIL levels should be considered as a risk factor rather than a risk marker of CVDs. Further studies are needed to better define the association of TRAIL with cardiovascular diseases.

scholarly journals Ketamine’s effect on inflammation and kynurenine pathway in depression: A systematic review

2021 ◽  
pp. 026988112110264
Author(s):  
Emma Kopra ◽  
Valeria Mondelli ◽  
Carmine Pariante ◽  
Naghmeh Nikkheslat
Keyword(s):  
Systematic Review ◽  
Animal Studies ◽  
Bipolar Depression ◽  
Strong Support ◽  
Kynurenine Pathway ◽  
Future Research ◽  
Downstream Effects ◽  
Tnf Α ◽  
The Central Nervous System ◽  
Anti Inflammatory

Background: Ketamine is a novel rapid-acting antidepressant with high efficacy in treatment-resistant patients. Its exact therapeutic mechanisms of action are unclear; however, in recent years its anti-inflammatory properties and subsequent downstream effects on tryptophan (TRP) metabolism have sparked research interest. Aim: This systematic review examined the effect of ketamine on inflammatory markers and TRP–kynurenine (KYN) pathway metabolites in patients with unipolar and bipolar depression and in animal models of depression. Methods: MEDLINE, Embase, and PsycINFO databases were searched on October 2020 (1806 to 2020). Results: Out of 807 initial results, nine human studies and 22 animal studies on rodents met the inclusion criteria. Rodent studies provided strong support for ketamine-induced decreases in pro-inflammatory cytokines, namely in interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α and indicated anti-inflammatory effects on TRP metabolism, including decreases in the enzyme indoleamine 2,3-dioxygenase (IDO). Clinical evidence was less robust with high heterogeneity between sample characteristics, but most experiments demonstrated decreases in peripheral inflammation including in IL-1β, IL-6, and TNF-α. Preliminary support was also found for reduced activation of the neurotoxic arm of the KYN pathway. Conclusion: Ketamine appears to induce anti-inflammatory effects in at least a proportion of depressed patients. Suggestions for future research include investigation of markers in the central nervous system and examination of clinical relevance of inflammatory changes.

328 Insomnia in older HIV patients: a systematic review

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A131-A131
Author(s):  
Igor Freire ◽  
Miguel Meira e Cruz ◽  
Cristina Salles
Keyword(s):  
Systematic Review ◽  
General Population ◽  
Animal Studies ◽  
Advanced Age ◽  
Cochrane Library ◽  
Hiv Positive ◽  
Sleep Difficulty ◽  
Cross Sectional ◽  
Previous Diagnosis ◽  
Worse Prognosis

Abstract Introduction Insomnia is a common sleep disorder in elderly. Although the HIV-positive population have a similar life expectancy when compared to the general population, some factors may interact with immunity conditions and therefore contribute to a worse prognosis. Little is known however, about the frequency of insomnia in older HIV-positive patients. OBJECTIVE: To systematic review the prevalence of insomnia in older HIV-positive patients. Methods Systematic Review. Several databases were consulted (MEDLINE-PubMed, Embase, Cochrane Library, CINAHL, Web of Science, Scopus, SciELO, LILACS, and VHL) and manual searches were performed. The terms used for the search were related to prevalence, HIV, insomnia, and advanced age. The inclusion criteria were: cross-sectional, cohort, and longitudinal studies. The accepted data were in patients with the previous diagnosis of HIV in advanced age, those over 50 years; studies that report the frequency of insomnia or insomnia symptoms (accepted symptoms: difficulty in starting sleep, difficulty in maintaining sleep, multiple awakenings during sleep and early awakening). The criteria for exclusion were: clinical trials, animal studies, letters, abstracts, conference proceedings, studies with other sleep scales that did not include insomnia. Results There were 2805 publications found in the database and a further 10 articles were included manually. Of this total, four were included in this review, resulting in a total of 2,227 participants. The prevalence of insomnia in HIV-positive patients over 50 years varied from 12.5% to 76.5%. Conclusion The frequency of insomnia was higher in the profile of the population studied than in the general population. This should be clinically relevant in order to adequately treat and impact on the prognosis of those patient. Support (if any):

Clinical, Radiographic, and Histologic Outcome of Regenerative Endodontic Treatment in Human Teeth Using a Novel Collagen-hydroxyapatite Scaffold

2019 ◽  
Vol 45 (2) ◽  
pp. 136-143 ◽  
Author(s):  
Ali Nosrat ◽  
Alireza Kolahdouzan ◽  
Amir Hossein Khatibi ◽  
Prashant Verma ◽  
Davoud Jamshidi ◽  
...  
Keyword(s):  
Endodontic Treatment ◽  
Human Teeth ◽  
Hydroxyapatite Scaffold ◽  
Regenerative Endodontic Treatment
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