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Hanna R, Miron IC, Benedicenti S. A Novel Therapeutic Approach of 980 nm Photobiomodulation Delivered with Flattop Beam Profile in Management of Recurrent Aphthous Stomatitis in Paediatrics and Adolescents-A Case Series with 3-Month Follow-Up. J Clin Med 2024; 13:2007. [PMID: 38610772 PMCID: PMC11012924 DOI: 10.3390/jcm13072007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Background/Objectives: Recurrent aphthous stomatitis (RAS) is one of the most common oral mucosal lesions and a very debilitating lesion, especially in paediatric and adolescent patients. The current pharmacotherapy offers a pain relief but not without side effects, and therefore photobiomodulation (PBM) can be an alternative therapy. To the authors' best knowledge, no published study has explored the efficacy of λ 980 nm laser PBM in the management of all RAS subtypes in paediatric and adolescent patients, and therefore, this prospective observational clinical study was conducted to bridge this gap by evaluating λ 980 nm laser PBM efficacy in symptomatic RAS management in paediatric and adolescent patients. The objectives were to evaluate (1) pain intensity alleviation; (2) wound healing rate; (3) wound size closure; (4) a complete resolution; (5) evidence of recurrence; and (6) patients' treatment satisfaction. Methods: The study's variables were assessed at the following timepoints: T0: pre-treatment; T1: immediately after first PBM session; T2: 5 hours (h) post first PBM session (via telephone call); T3: immediately after second PBM session (three days post first PBM session); T4: three-day follow-up (after complete PBM treatments); T5: two-week follow-up; and T6: three-month follow-up. The following PBM dosimetry and treatment protocols were employed: λ 980 nm; 300 mW; 60 s; 18 J; CW; flattop beam profile of 1 cm2 spot size; 18 J/cm2; and twice-a-week irradiation (72 h interval). Results: At T1, significant immediate pain intensity relief was reported. 33.33% recorded "4" and 66.67% reported "5" on the quantitative numeric pain intensity scale (NPIS), and this continued to improve significantly (83.33%) at T2. All the subjects reported "0" on the NPIS at T3, T4, T5 and T6. There was a significant reduction in the lesion surface area (>50% complete healing) at T3 compared to T0. Complete healing (100%) with no evidence of scarring and lesion recurrence observed at T4, T5 and T6. Very good patients' satisfaction was reported at all timepoints. Conclusions: This is the first report demonstrating λ980 nm efficacy in all RAS subtype management in paediatric and adolescent patients with a 3-month follow-up, whereby its PBM dosimetry and treatment protocols were effective from scientific and practical standpoints, and hence multicentre RCTs with large data are warranted to validate its reproducibility and to enrich the knowledge of PBM application in all RAS subtypes.
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Affiliation(s)
- Reem Hanna
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 16132 Genoa, Italy; (I.C.M.); (S.B.)
- Department of Restorative Dental Sciences, UCL-Eastman Dental Institute, Medical School, University College London, London WC1E 6DE, UK
- Department of Oral Surgery, King’s College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, UK
| | - Ioana Cristina Miron
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 16132 Genoa, Italy; (I.C.M.); (S.B.)
| | - Stefano Benedicenti
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 16132 Genoa, Italy; (I.C.M.); (S.B.)
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Waight JL, Arias N, Jiménez-García AM, Martini M. From functional neuroimaging to neurostimulation: fNIRS devices as cognitive enhancers. Behav Res Methods 2024; 56:2227-2242. [PMID: 37507648 PMCID: PMC10990990 DOI: 10.3758/s13428-023-02144-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2023] [Indexed: 07/30/2023]
Abstract
Functional near-infrared spectroscopy (fNIRS) relies on near-infrared (NIR) light for changes in tissue oxygenation. For decades, this technique has been used in neuroscience to measure cortical activity. However, recent research suggests that NIR light directed to neural populations can modulate their activity through "photobiomodulation" (PBM). Yet, fNIRS is being used exclusively as a measurement tool. By adopting cognitive tests sensitive to prefrontal functioning, we show that a 'classical' fNIRS device, placed in correspondence of the prefrontal cortices of healthy participants, induces faster RTs and better accuracy in some of the indexes considered. A well-matched control group, wearing the same but inactive device, did not show any improvement. Hence, our findings indicate that the 'standard' use of fNIRS devices generates PBM impacting cognition. The neuromodulatory power intrinsic in that technique has been so far completely overlooked, and future studies will need to take this into account.
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Affiliation(s)
- Jason Lee Waight
- School of Psychology, University of East London, E15 4LZ, London, UK
| | - Natalia Arias
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Denmark Hill, London, SE5 8AF, UK.
- Instituto de Neurociencias del Principado de Asturias (INEUROPA), 33005, Oviedo, Spain.
- Health Research Institute of the Principality of Asturias (ISPA), 33011, Oviedo, Spain.
- BRABE Group, Department of Psychology, Faculty of Life and Natural Sciences, University of Nebrija, C/del Hostal, 28248, Madrid, Spain.
| | - Ana M Jiménez-García
- BRABE Group, Department of Psychology, Faculty of Life and Natural Sciences, University of Nebrija, C/del Hostal, 28248, Madrid, Spain
| | - Matteo Martini
- School of Psychology, University of East London, E15 4LZ, London, UK.
- Department of Humanities, Letters, Cultural Heritage and Educational Studies, via Arpi, 71121, Foggia, Italy.
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Dominguez A. Is it possible to anchor a tooth with photobiomodulation? World J Clin Cases 2024; 12:872-874. [PMID: 38414606 PMCID: PMC10895639 DOI: 10.12998/wjcc.v12.i5.872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024] Open
Abstract
During orthodontic treatment, we can achieve differential movements by using photobiomodulation (PBM) as an adjuvant before applying force. We can expect a greater bone density that initially resists movement while applying PBM to the other teeth to achieve an accelerating effect. The proposed protocol is to use an 810 nm laser at 0.1W power, applying between 4 and 6J per tooth for 22 s on the vestibular and lingual root surfaces, following the axial axis of the tooth. The energy density depends on the tip selected in the instrument. Normal bone remodeling cannot be avoided by applying high doses of PBM. PBM should be applied before orthodontic force to reduce tooth movement. In addition, PBM can be used during force application to teeth that require acceleration to achieve differential movement in orthodontic treatments. The protocol is the same in both scenarios.
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Affiliation(s)
- Angela Dominguez
- Department of Orthodontics, Faculty of Dentistry, Benemerita Universidad Autónoma de Puebla, Zaragoza de Puebla Calle 4 Sur 104, Puebla, Mexico
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Mineroff J, Maghfour J, Ozog DM, Lim HW, Kohli I, Jagdeo J. Photobiomodulation CME part II: Clinical applications in dermatology. J Am Acad Dermatol 2024:S0190-9622(24)00187-7. [PMID: 38307144 DOI: 10.1016/j.jaad.2023.10.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 10/07/2023] [Accepted: 10/08/2023] [Indexed: 02/04/2024]
Abstract
Photobiomodulation (PBM) is an emerging treatment modality in dermatology with increasing office and home-based use. PBM is the use of various light sources in the red light (620-700 nm) and near-infrared (700-1440 nm) spectrum as a form of light therapy. PBM is often administered through low-level lasers or light-emitting diodes. Studies show that PBM can be used effectively to treat conditions secondary to cancer therapies, alopecia, ulcers, herpes simplex virus, acne, skin rejuvenation, wounds, and scars. PBM offers patients many benefits compared to other treatments. It is noninvasive, cost-effective, convenient for patients, and offers a favorable safety profile. PBM can be used as an alternative or adjuvant to other treatment modalities including pharmacotherapy. It is important for dermatologists to gain a better clinical understanding of PBM for in-office administration and to counsel patients on proper application for home-use devices to best manage safety and expectations as this technology develops. PBM wavelengths can induce varied biological effects in diverse skin types, races, and ethnicities; therefore, it is also important for dermatologists to properly counsel their skin of color patients who undergo PBM treatments. Future clinical trials are necessary to produce standardized recommendations across conditions and skin types.
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Affiliation(s)
- Jessica Mineroff
- Department of Dermatology, State University of New York, Downstate Health Sciences University, Brooklyn, New York
| | - Jalal Maghfour
- The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, Michigan
| | - David M Ozog
- The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, Michigan; College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Henry W Lim
- The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, Michigan; College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Indermeet Kohli
- The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, Michigan; Department of Physics and Astronomy, Wayne State University, Detroit, Michigan
| | - Jared Jagdeo
- Department of Dermatology, State University of New York, Downstate Health Sciences University, Brooklyn, New York.
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Maghfour J, Ozog DM, Mineroff J, Jagdeo J, Kohli I, Lim HW. Photobiomodulation CME Part I: Overview and Mechanism of Action. J Am Acad Dermatol 2024:S0190-9622(24)00186-5. [PMID: 38309304 DOI: 10.1016/j.jaad.2023.10.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 10/08/2023] [Accepted: 10/13/2023] [Indexed: 02/05/2024]
Abstract
Photobiomodulation (PBM), previously known as low-level laser light therapy, represents a non-invasive form of phototherapy that utilizes wavelengths in the red light (RL, 620-700 nm) portion of the visible light (VL, 400-700 nm) spectrum and the near-infrared (NIR, 700-1440 nm) spectrum. PBM is a promising and increasingly used therapy for the treatment of various dermatologic and non-dermatologic conditions. Photons from RL and NIR are absorbed by endogenous photoreceptors including mitochondrial cytochrome C oxidase (COX). Activation of COX leads to the following changes: modulation of mitochondrial adenosine triphosphate (ATP), generation of reactive oxygen species (ROS), and alterations in intracellular calcium levels. The associated modulation of ATP, ROS and calcium levels promotes the activation of various signaling pathways (e.g., insulin-like growth factors, phosphoinositide 3-kinase pathways), which contribute to downstream effects on cellular proliferation, migration and differentiation. Effective PBM therapy is dependent on treatment parameters (e.g., fluence, treatment duration and output power). PBM is generally well-tolerated and safe with erythema being the most common and self-limiting adverse cutaneous effect.
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Affiliation(s)
- Jalal Maghfour
- Department of Dermatology, Henry Ford Health, Detroit, MI, USA
| | - David M Ozog
- Department of Dermatology, Henry Ford Health, Detroit, MI, USA; The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, MI, USA; College of Human Medicine, Michigan State University, East Lansing, Michigan, USA.
| | - Jessica Mineroff
- Department of Dermatology, State University of New York, Downstate Health Sciences University, Brooklyn, NY, USA
| | - Jared Jagdeo
- Department of Dermatology, State University of New York, Downstate Health Sciences University, Brooklyn, NY, USA
| | - Indermeet Kohli
- College of Human Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Henry W Lim
- Department of Dermatology, Henry Ford Health, Detroit, MI, USA; The Henry W. Lim, MD, Division of Photobiology and Photomedicine, Department of Dermatology, Henry Ford Health, Detroit, MI, USA; College of Human Medicine, Michigan State University, East Lansing, Michigan, USA
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Marx R, Liu H, Yoon S, Xie D. CFD evaluation of hydrophobic feedstock bench-scale fermenters for efficient high agitation volumetric mass transfer. Biotechnol J 2024; 19:e2300384. [PMID: 38403465 DOI: 10.1002/biot.202300384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/08/2023] [Accepted: 01/02/2024] [Indexed: 02/27/2024]
Abstract
A new biomanufacturing platform combining intracellular metabolic engineering of the oleaginous yeast Yarrowia lipolytica and extracellular bioreaction engineering provides efficient bioconversion of plant oils/animal fats into high-value products. However, predicting the hydrodynamics and mass transfer parameters is difficult due to the high agitation and sparging required to create dispersed oil droplets in an aqueous medium for efficient yeast fermentation. In the current study, commercial computational fluid dynamic (CFD) solver Ansys CFX coupled with the MUSIG model first predicts two-phase system (oil/water and air/water) mixing dynamics and their particle size distributions. Then, a three-phase model (oil, air, and water) utilizing dispersed air bubbles and a polydispersed oil phase was implemented to explore fermenter mixing, gas dispersion efficiency, and volumetric mass transfer coefficient estimations (kL a). The study analyzed the effect of the impeller type, agitation speed, and power input on the tank's flow field and revealed that upward-pumping pitched blade impellers (PBI) in the top two positions (compared to Rushton-type) provided advantageous oil phase homogeneity and similar estimated kL a values with reduced power. These results show good agreement with the experimental mixing and kL a data.
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Affiliation(s)
- Richard Marx
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Huolong Liu
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Seongkyu Yoon
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Dongming Xie
- Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, USA
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Mylona V, Anagnostaki E, Chiniforush N, Barikani H, Lynch E, Grootveld M. Photobiomodulation Effects on Periodontal Ligament Stem Cells: A Systematic Review of In Vitro Studies. Curr Stem Cell Res Ther 2024; 19:544-558. [PMID: 35638280 DOI: 10.2174/1574888x17666220527090321] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/24/2022] [Accepted: 04/12/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Stem cell therapy has been considered to play a paramount role in the treatment modalities available for regenerative dentistry. The established beneficial effects of photobiomodulation (PBM) at the cellular level have led to the combined use of these two factors (PBM and stem cells). The main goal of this study was firstly to critically appraise the effects of PBM on periodontal ligament stem cells (PDLSCs), and secondly to explore the most effective PBM protocols applied. METHODS Pubmed, Cochrane, Scopus, Science Direct, and Google Scholar search engines were used to identify experimental in vitro studies in which PBM was applied to cultured PDLSCs. After applying specific keywords, additional filters, and inclusion/exclusion criteria, a preliminary number of 245 articles were narrowed down to 11 in which lasers and LEDs were used within the 630 - 1064 nm wavelength range. Selected articles were further assessed by three independent reviewers for strict compliance with PRISMA guidelines, and a modified Cochrane risk of bias to determine eligibility. STATISTICAL ANALYSIS The dataset analysed was extracted from the studies with sufficient and clearly presented PBM protocols. Simple univariate regression analysis was performed to explore the significance of contributions of potential quantitative predictor variables toward study outcomes, and a one-way ANOVA model was employed for testing differences between the laser or LED sources of the treatments. The significance level for testing was set at α = 0.05. RESULTS The proliferation rate, osteogenic differentiation, and expression of different indicative genes for osteogenesis and inflammation suppression were found to be positively affected by the application of various types of lasers and LEDs. With regard to the PBM protocol, only the wavelength variable appeared to affect the treatment outcome; indeed, the 940 nm wavelength parameter was found not to exert a favourable effect. CONCLUSIONS Photobiomodulation can enhance the stemness and differentiation capacities of periodontal ligament stem cells. Therefore, for PBM protocols, there remains no consensus amongst the scientific community. Statistical analyses performed here indicated that the employment of a near-infrared (NIR) wavelength of 940 nm may not yield a significant favourable outcome, although those within the 630 - 830 nm range did so. Concerning the fluence, it should not exceed 8 J/cm2 when therapy is applied by LED devices, and 4 J/cm2 when applied by lasers, respectively.
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Affiliation(s)
- Valina Mylona
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | | | - Nasim Chiniforush
- Laser Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamidreza Barikani
- Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Edward Lynch
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Martin Grootveld
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
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Rodriguez Salazar DY, Málaga Rivera JA, Laynes Effio JE, Valencia-Arias A. A systematic review of trends in photobiomodulation in dentistry between 2018 and 2022: advances and investigative agenda. F1000Res 2023; 12:1415. [PMID: 38288260 PMCID: PMC10823425 DOI: 10.12688/f1000research.140950.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/21/2023] [Indexed: 01/31/2024] Open
Abstract
Background Photobiomodulation (PBM) involves laser therapy utilized in medical sciences to modulate biological processes acting as a palliative and immune response-enhancing treatment. This study conducts a comprehensive bibliometric analysis to explore current trends in PBM-related scientific production, encompassing publications, citations, impact, keywords and clusters. Additionally, it aims to predict future research trends in this domain. Methods The data for this quantitative and qualitative bibliometric analysis were obtained from 608 scientific documents retrieved in November 2022, with 123 sourced from Web of Science and 485 from Scopus, Utilizing Excel, the data was processed in Excel to extract essencial information. Productivity and impact were evaluated for eligibility, and VOSviewer aided in determining associativity for the bibliometric analysis. Results The findings of this study demostrate that the scientific production related to PBM adheres to a growth power law, exhibiting characteristics of both exponential and linear phases. Notably, recent research trends emphasize critical concepts such as laser therapy, orthodontics, and dental pulp stem cells. Particularly significant is the burgeoning interest in utilizing PBM within dentistry as a complementary alternative to existing protocols. Conclusions PBM stands as a promising laser therapy within medical applications. Through a detailed bibliometric analysis, this study underscores the increasing significance of PBM, especially within the realm of dental treatments. These insights offer a glimpse into the evolving landscape of PBM research and provide valuable guidance for potential future directions of study.
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da Silva AL, Lopes-Martins RAB, Dos Santos Oliveira A, França PDL, Pereira MFF, Lima MO, Lima FPS. Effect of photobiomodulation associated with strengthening pelvic floor muscles in volunteers with urinary incontinence: a randomized, double-blinded, and placebo-controlled clinical trial. Lasers Med Sci 2023; 38:278. [PMID: 38017192 DOI: 10.1007/s10103-023-03919-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/22/2023] [Indexed: 11/30/2023]
Abstract
The dysfunctions of the female pelvic floor have a great influence on the quality of life of women, in all areas, social, psychological, and sexual. Stress urinary incontinence is the clinical condition in which the woman involuntarily loses urine to efforts, such as coughing and sneezing, causing great embarrassment and affecting her quality of life. The physiotherapeutic treatments include muscle strengthening; however, muscle fatigue is present when performing the exercises. Here we investigate the effects of photobiomodulation to prevent muscle fatigue in the pelvic floor in the treatment of stress urinary incontinence, associated with a muscle strengthening exercise protocol. We used an infrared laser (808 nm, 100 mW) and 3 J/point and fluence of 107.1 J/cm2. The application was performed at 3 points on the vaginal introits and at another 3 points inside the vaginal canal cavity for the treatment of stress urinary incontinence associated with strengthening exercises with vaginal cones. Twenty-two volunteers participated in the study, divided into two groups: group 1 (laser therapy + strengthening) and group 2 (placebo laser + strengthening). In the group 1 quality of life score, the assessment (11.63 ± 4.33) was the highest score at 17 and in the reevaluation (7.81 ± 5.14) the lowest was 0 (p < 0.05). The muscular strength increased considerably (p < 0.05) for group 1, where the vast majority of patients gained more than twice the strength in the pelvic apparatus (8.36 ± 6.65 before X 13.81 ± 8.92 after). The volunteers acquired an increase in the contraction of the muscles of the pelvic apparatus (p < 0.05) (3.45 ± 1.07); after laser application, this number increased considerably (4.27 ± 0.61). Endurance had an increase of almost 50% compared to placebo, demonstrating the resistance gain in the perineal muscles (3.90 ± 2.35 X 5 ± 1.90). We concluded that photobiomodulation treatment showed significant efficacy in relation to muscle fatigue in the pelvic apparatus right after a strengthening program in women with stress urinary incontinence.
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Affiliation(s)
- Aline Lanziloti da Silva
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil
| | - Rodrigo Alvaro B Lopes-Martins
- Post Graduate Program in Human Movement and Rehabilitation (PPGMHR), University Center of Anápolis (UniEVANGÉLICA), Anápolis, GO, Brazil
| | - Aissa Dos Santos Oliveira
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil
| | - Paula Denise Leite França
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil
| | - Maria Fernanda Franco Pereira
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil
| | - Mário Oliveira Lima
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil
| | - Fernanda Pupio Silva Lima
- Laboratory of Sensory-Motor Rehabilitation Engineering, Institute of Research and Development, University of Vale do Paraíba-UNIVAP, São José Dos Campos, SP, Brazil.
- Programa de Pós Graduação Em Engenharia Biomédica, Avenida Shishima Hifumi, Urbanova, SP, 2911, Brazil.
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Kaymak H, Munk MR, Tedford SE, Croissant CL, Tedford CE, Ruckert R, Schwahn H. Non-Invasive Treatment of Early Diabetic Macular Edema by Multiwavelength Photobiomodulation with the Valeda Light Delivery System. Clin Ophthalmol 2023; 17:3549-3559. [PMID: 38026594 PMCID: PMC10676639 DOI: 10.2147/opth.s415883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose Diabetes is associated with ocular complications including diabetic macular edema (DME). Current therapies are invasive and include repeated intravitreal injections and laser therapy. Photobiomodulation (PBM) is a treatment (Tx) that utilizes selected wavelengths of light to induce cellular benefits including reduction of inflammation and edema. This single-center, open-label, post-hoc analysis explored the utility of multiwavelength PBM in subjects with DME. Methods Analysis included review of data from patients undergoing standard clinical care with an approved and marketed PBM medical device, the Valeda® Light Delivery System. Subjects with early-stage DME with good vision (Best-corrected visual acuity (BCVA) > 20/25, logMAR > 0.1) were evaluated in clinic and treated with one series of multiwavelength PBM (Tx delivered 3x/week over 3-4 weeks; total of 9 Tx sessions). Clinical, anatomical, and safety parameters were assessed in addition to subjective quality of life. Results A total of 30 eyes (19 subjects) were analyzed. Subjects were predominately male (68.4%) with a mean age of 56 ± 14 years. Reductions in central retinal thickness (CRT), resolution of intraretinal fluid (IRF) and improvement in diabetic retinopathy severity scale scores were observed following PBM treatment in select patients. Baseline BCVA remained stable over the follow-up observation period of 3 months post-PBM. Approximately 64% of patients reported subjective improvements in their ocular condition and decreased influence in everyday life. Detailed OCT evaluations confirmed no safety issues related to phototoxicity up to 16 months. Conclusion Early-stage DME subjects treated with Valeda multiwavelength PBM showed improvements in clinical and anatomical parameters. The Valeda multiwavelength PBM approach demonstrates a favorable safety profile with no signs of phototoxicity following an independent OCT review. PBM therapy may offer an alternative, non-invasive treatment strategy with a unique mechanism and modality for patients with early-stage DME.
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Affiliation(s)
- Hakan Kaymak
- I.I.O.GbR Breyer Kaymak Klabe, Duesseldorf, Germany
- Experimental Ophthalmology, University Hospital and Medical Faculty of the University of Saarland, Homburg/Saar, Germany
| | - Marion R Munk
- Department of Ophthalmology, Inselspital University Hospital Bern, Bern, Switzerland
- Eyegnos Consulting, Bern, Switzerland
- Augenarzt-Praxisgemeinschaft Gutblick AG, Pfäffikon, Switzerland
| | | | | | | | - Rene Ruckert
- Eyegnos Consulting, Bern, Switzerland
- LumiThera, Inc, Poulsbo, WA, USA
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Akhiiarova K, Khusainova R, Minniakhmetov I, Mokrysheva N, Tyurin A. Peak Bone Mass Formation: Modern View of the Problem. Biomedicines 2023; 11:2982. [PMID: 38001982 PMCID: PMC10669090 DOI: 10.3390/biomedicines11112982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/26/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Peak bone mass is the amount of bone tissue that is formed when a stable skeletal state is achieved at a young age. To date, there are no established peak bone mass standards nor clear data on the age at which peak bone mass occurs. At the same time, the level of peak bone mass at a young age is an important predictor of the onset of primary osteoporosis. The purpose of this review is to analyze the results of studies of levels of peak bone mass in general, the age of its onset, as well as factors influencing its formation. Factors such as hormonal levels, body composition, physical activity, nutrition, heredity, smoking, lifestyle, prenatal predictors, intestinal microbiota, and vitamin and micronutrient status were considered, and a comprehensive scheme of the influence of these factors on the level of peak bone mass was created. Determining the standards and timing of the formation of peak bone mass, and the factors affecting it, will help in the development of measures to prevent its shortage and the consequent prevention of osteoporosis and concomitant diseases.
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Affiliation(s)
- Karina Akhiiarova
- Internal Medicine Department, Bashkir State Medical University, 450008 Ufa, Russia;
| | - Rita Khusainova
- Medical Genetics Department, Bashkir State Medical University, 450008 Ufa, Russia;
- Endocrinology Research Centre, Dmitriya Ulianova Street, 11, 117036 Moscow, Russia; (I.M.); (N.M.)
| | - Ildar Minniakhmetov
- Endocrinology Research Centre, Dmitriya Ulianova Street, 11, 117036 Moscow, Russia; (I.M.); (N.M.)
| | - Natalia Mokrysheva
- Endocrinology Research Centre, Dmitriya Ulianova Street, 11, 117036 Moscow, Russia; (I.M.); (N.M.)
| | - Anton Tyurin
- Internal Medicine Department, Bashkir State Medical University, 450008 Ufa, Russia;
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12
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Luque-Mialdea F, Molina-Seoane V. Retinitis pigmentosa: Significant improvement with photobiomodulation. Arch Soc Esp Oftalmol (Engl Ed) 2023:S2173-5794(23)00155-X. [PMID: 37813185 DOI: 10.1016/j.oftale.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/07/2023] [Indexed: 10/11/2023]
Abstract
We describe the case of a 38-year-old patient with retinitis pigmentosa. Diagnosed at the age of 20, she presented a progressive decrease in visual acuity and visual field, until she developed a shotgun barrel campimetry. After starting a photobiomodulation treatment of 9 sessions every other day, the patient reported improvement in visual acuity, night vision and quality of life. Clinical evaluation showed a visual acuity of 10/10 in both eyes and a substantial improvement in visual field.
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Affiliation(s)
- F Luque-Mialdea
- Unidad de Especialización, CLM Clínica Oftalmológica, Madrid, Spain.
| | - V Molina-Seoane
- Unidad de Especialización, CLM Clínica Oftalmológica, Madrid, Spain
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13
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Dehghanpour HR, Parvin P, Ganjali P, Golchini A, Eshghifard H, Heidari O. Evaluation of photobiomodulation effect on cesarean-sectioned wound healing: a clinical study. Lasers Med Sci 2023; 38:171. [PMID: 37526765 DOI: 10.1007/s10103-023-03774-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 04/05/2023] [Indexed: 08/02/2023]
Abstract
The effects of low-level laser on the wound healing and burn injuries have been previously examined to demonstrate some satisfactory results. Despite there are a few articles available to study photobiomodulation (PBM) effects on the pain relief of cesarean sectioned wound, however no systematic examination has been carried out so far regarding its healing. Here, the aim of this clinical study was to evaluate PBM effect on the cesarean-sectioned wound healing. PBM effects of semiconductor lasers are investigated at 658 and 660 nm with 100, 150 and 350 mW output powers on 40 patients. Due to the global increasing number of cesarean sections, we have decided to investigate the effect of laser as a reliable technique to recover the wounds fast. We considered women as the target group who had their first delivery giving the birth of their children by cesarean section. We selected patients are who treated by laser therapy using indium gallium aluminum phosphide (InGaAlP) semiconductor linear scanning type with beam cross section of 12 cm2 and the output power of 100 mW at 658 nm exposing a therapeutic dose of 2 J/cm2. The purpose is to accelerate the healing process of the wounds after delivery as an intervention group against the people who chose the conventional methods (using ointments, pills, etc.) to heal their cesarean sectioned wounds as the control group. Regarding the wounds of these two groups, the questionnaires were filled by patients to assess the severity of pain from visual analogue scale (VAS) based on the healing of wounds from redness, edema, ecchymosis, discharge, and distance between the two edges of the wound (REEDA) scale in the early hours after surgery and the post-treatment follow-up on the third, seventh, and the tenth days. The data collected by these questionnaires were analyzed using statistical package for social science)SPSS( as a statistical software to give out the comparative histograms. This study reports a clinical examination of PBM under intervention group of 40 patients ranging 18-40 years old with body mass index (BMI) of 29-36, during post-cesarean surgery to elucidate successful healing of the wounds and scars against conventional methods which considered as control group. Comparison of mean REEDA scores on the third day (p = 0.035), seventh day (p = 0.03), and tenth day (p = 0.02) after delivery exhibits that the two groups benefit a statistically significant difference with each other. For instance, the mean wound healing score in the intervention group was almost half of the mean wound healing score on the tenth day in the control group (1.09 ± 0.586 vs. 2.25 ± 0.422). The post-cesarean follow-up indicates that the patients treated by the laser therapy (intervention group) encounter better recovery than the control group.
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Affiliation(s)
| | - Parviz Parvin
- Physics Department, Amirkabir University of Technology, P.O. Box, Tehran, 15875-4413, Iran
| | - Parvaneh Ganjali
- Department of Physics, Tafresh University, Tafresh, 3951879611, Iran
| | | | | | - Omid Heidari
- Physics Department, Amirkabir University of Technology, P.O. Box, Tehran, 15875-4413, Iran
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14
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Abram D, Tran MH. Effect of erythropoietin on perioperative blood transfusions in primary total hip arthroplasty: A systematic review. Transfus Apher Sci 2023; 62:103718. [PMID: 37173207 DOI: 10.1016/j.transci.2023.103718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 04/13/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023]
Abstract
BACKGROUND Primary total hip arthroplasty (THA) often requires blood transfusion. Transfusions are undesirable due to risks of infectious and noninfectious complications. This systematic review therefore studied the effectiveness of erythropoietin (EPO) in reducing allogeneic transfusion rate during THA. METHODS Using the MESH terms "Erythropoietin" AND "Total Hip" with restrictions to 'Randomized Controlled Trial', 'Clinical Trial', 'Humans', and 'English', a literature search was performed in PubMed and CINAHL. Articles were scanned by both authors and retained for further review if eligibility was met according to the inclusion criteria defined by the PICOS (population, intervention, comparator, outcomes, study design) configuration. Risk of bias was assessed using the Cochrane risk of bias criteria. Data extracted include patient demographics, intervention versus comparator arm, outcomes, laboratory data, and individual study characteristics. The primary outcome of focus was rate or amount of allogeneic blood transfusions intra- or postoperatively. In 6/8 studies, data permitted calculations of absolute risk reduction (ARR) in transfusion rate (%) and number needed to treat (NNT) to evade transfusions. RESULTS A total of 8 studies met all eligibility criteria and were retained for data extraction; risk of bias was low-moderate in 7/8 and high in 1/8. Allogeneic transfusion exposure was lowered by the intervention in 7/8 studies with ARR from 9.6% to 33.5% and NNT from 4 to 10. CONCLUSIONS In the blood conservation systems described, the addition of EPO was effective in reducing allogeneic transfusions. The studies included spanned a nearly 30-year period. Earlier studies incorporated preoperative autologous donation, a now outdated modality.
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Affiliation(s)
- David Abram
- Touro University Nevada, College of Osteopathic Medicine, USA
| | - Minh-Ha Tran
- University of California, Irvine School of Medicine, USA.
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15
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Sliwinski S, Werneburg E, Faqar-Uz-Zaman SF, Detemble C, Dreilich J, Mohr L, Zmuc D, Beyer K, Bechstein WO, Herrle F, Malkomes P, Reissfelder C, Ritz JP, Vilz T, Fleckenstein J, Schnitzbauer AA. A toolbox for a structured risk-based prehabilitation program in major surgical oncology. Front Surg 2023; 10:1186971. [PMID: 37435472 PMCID: PMC10332323 DOI: 10.3389/fsurg.2023.1186971] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/17/2023] [Indexed: 07/13/2023] Open
Abstract
Prehabilitation is a multimodal concept to improve functional capability prior to surgery, so that the patients' resilience is strengthened to withstand any peri- and postoperative comorbidity. It covers physical activities, nutrition, and psychosocial wellbeing. The literature is heterogeneous in outcomes and definitions. In this scoping review, class 1 and 2 evidence was included to identify seven main aspects of prehabilitation for the treatment pathway: (i) risk assessment, (ii) FITT (frequency, interventions, time, type of exercise) principles of prehabilitation exercise, (iii) outcome measures, (iv) nutrition, (v) patient blood management, (vi) mental wellbeing, and (vii) economic potential. Recommendations include the risk of tumor progression due to delay of surgery. Patients undergoing prehabilitation should perceive risk assessment by structured, quantifiable, and validated tools like Risk Analysis Index, Charlson Comorbidity Index (CCI), American Society of Anesthesiology Score, or Eastern Co-operative Oncology Group scoring. Assessments should be repeated to quantify its effects. The most common types of exercise include breathing exercises and moderate- to high-intensity interval protocols. The program should have a duration of 3-6 weeks with 3-4 exercises per week that take 30-60 min. The 6-Minute Walking Testing is a valid and resource-saving tool to assess changes in aerobic capacity. Long-term assessment should include standardized outcome measurements (overall survival, 90-day survival, Dindo-Clavien/CCI®) to monitor the potential of up to 50% less morbidity. Finally, individual cost-revenue assessment can help assess health economics, confirming the hypothetic saving of $8 for treatment for $1 spent for prehabilitation. These recommendations should serve as a toolbox to generate hypotheses, discussion, and systematic approaches to develop clinical prehabilitation standards.
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Affiliation(s)
- Svenja Sliwinski
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Elisabeth Werneburg
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Sara Fatima Faqar-Uz-Zaman
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Charlotte Detemble
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Julia Dreilich
- Institute of Sports Medicine, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Lisa Mohr
- Institute of Sports Medicine, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Dora Zmuc
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
- Institute of Sports Medicine, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Katharina Beyer
- Department of General, Visceral and Vascular Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
| | - Wolf O. Bechstein
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Florian Herrle
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
- Romed Klinik Prien am Chiemsee, Klinik für Allgemein- und Viszeralchirurgie, Prien am Chiemsee, Germany
| | - Patrizia Malkomes
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
| | - Christoph Reissfelder
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
- Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Joerg P. Ritz
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
- Helios Clinics Schwerin, Department for General and Visceral Surgery, Schwerin, Germany
| | - Tim Vilz
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
- Department of General, Visceral, Thoracic, and Vascular Surgery, University Hospital Bonn, Bonn, Germany
| | - Johannes Fleckenstein
- Institute of Sports Medicine, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
- Department of Pain Medicine, Hospital Landsberg am Lech, Landsberg am Lech, Germany
| | - Andreas A. Schnitzbauer
- Department of General, Visceral, Transplant and Thoracic Surgery, University Hospital Frankfurt, Goethe University Frankfurt/Main, Frankfurt/Main, Germany
- German Association for General and Visceral Surgery (DGAV), Surgical Work Force for Perioperative Medicine, Berlin, Germany
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16
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Zhang H, Lei H, Ding C, Chen S, Xiao Y, Li Q. Two-Way PBM-Euler Model for Gas and Liquid Flow in the Ladle. Materials (Basel) 2023; 16:ma16103782. [PMID: 37241409 DOI: 10.3390/ma16103782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023]
Abstract
Ladle metallurgy is an important steelmaking technology in high-quality steel production. The blowing of argon at the ladle bottom has been applied in ladle metallurgy for several decades. Until now, the issue of breakage and coalescence among bubbles was still far from being solved. In order to have a deep insight into the complex process of fluid flow in the gas-stirred ladle, the Euler-Euler model and population balance model (PBM) are coupled to investigate the complex fluid flow in the gas-stirred ladle. Here, the Euler-Euler model is applied to predict the two-phase flow, and PBM is applied to predict the bubble and size distribution. The coalescence model, which considers turbulent eddy and bubble wake entrainment, is taken into account to determine the evolution of the bubble size. The numerical results show that if the mathematical model ignores the breakage of bubbles, the mathematical model gives the wrong bubble distribution. For bubble coalescence in the ladle, turbulent eddy coalescence is the main mode, and wake entrainment coalescence is the minor mode. Additionally, the number of the bubble-size group is a key parameter for describing the bubble behavior. The size group number 10 is recommended to predict the bubble-size distribution.
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Affiliation(s)
- Han Zhang
- Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China
- School of Metallurgy, Northeastern University, Shenyang 110004, China
| | - Hong Lei
- Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China
- School of Metallurgy, Northeastern University, Shenyang 110004, China
| | - Changyou Ding
- Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China
- School of Metallurgy, Northeastern University, Shenyang 110004, China
| | - Shifu Chen
- Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China
- School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 234000, China
| | - Yuanyou Xiao
- Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110004, China
- School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114000, China
| | - Qiang Li
- School of Metallurgy, Northeastern University, Shenyang 110004, China
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17
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La Civita G, Ugolini E, Patelli N, Piccioni A, Migliori A, Pasquini L, Ghedini E. Numerical and Experimental Study of Gas Phase Nanoparticle Synthesis Using NanoDOME. Nanomaterials (Basel) 2023; 13:1317. [PMID: 37110902 PMCID: PMC10142875 DOI: 10.3390/nano13081317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/27/2023] [Accepted: 04/07/2023] [Indexed: 06/19/2023]
Abstract
Nowadays, with the rocketing of computational power, advanced numerical tools, and parallel computing, multi-scale simulations are becoming applied more and more to complex multi-physics industrial processes. One of the several challenging processes to be numerically modelled is gas phase nanoparticle synthesis. In an applied industrial scenario, the possibility to correctly estimate the geometric properties of the mesoscopic entities population (e.g., their size distribution) and to more precisely control the results is a crucial step to improve the quality and efficiency of the production. The "NanoDOME" project (2015-2018) aims to be an efficient and functional computational service to be applied in such processes. NanoDOME has also been refactored and upscaled during the H2020 Project "SimDOME". To prove its reliability, we present here an integrated study between experimental data and NanoDOME's predictions. The main goal is to finely investigate the effect of a reactor's thermodynamic conditions on the thermophysical history of mesoscopic entities along the computational domain. To achieve this goal, the production of silver nanoparticles has been assessed for five cases with different experimental operative conditions of the reactor. The time evolution and final size distribution of nanoparticles have been simulated with NanoDOME by exploiting the method of moments and population balance model. The validation is performed by comparing NanoDOME's calculations with the experimental data.
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Affiliation(s)
- Giorgio La Civita
- Department of Industrial Engineering, University of Bologna, v. del Risorgimento 2, 40136 Bologna, Italy; (E.U.); (E.G.)
| | - Edoardo Ugolini
- Department of Industrial Engineering, University of Bologna, v. del Risorgimento 2, 40136 Bologna, Italy; (E.U.); (E.G.)
| | - Nicola Patelli
- Department of Physics and Astronomy, University of Bologna, v. Berti-Pichat 6/2, 40127 Bologna, Italy; (N.P.); (A.P.); (L.P.)
| | - Alberto Piccioni
- Department of Physics and Astronomy, University of Bologna, v. Berti-Pichat 6/2, 40127 Bologna, Italy; (N.P.); (A.P.); (L.P.)
| | - Andrea Migliori
- Institute for Microelectronics and Microsystems, National Research Council, via Gobetti 101, 40129 Bologna, Italy;
| | - Luca Pasquini
- Department of Physics and Astronomy, University of Bologna, v. Berti-Pichat 6/2, 40127 Bologna, Italy; (N.P.); (A.P.); (L.P.)
| | - Emanuele Ghedini
- Department of Industrial Engineering, University of Bologna, v. del Risorgimento 2, 40136 Bologna, Italy; (E.U.); (E.G.)
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18
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Sourvanos D, Hall Morales RD, Dimofte A, Fiorellini JP, Zhu TC. Validating Homogeneity for a Novel 3-Dimensional Tissue Phantom Modeling System of the Human Maxilla. Proc SPIE Int Soc Opt Eng 2023; 12362:1236204. [PMID: 37206702 PMCID: PMC10193594 DOI: 10.1117/12.2654593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Silicon phantom models have been utilized to calculate light fluence in patients being treated with Photodynamic Therapy (PDT). This application can be utilized for other non-ionizing wavelength therapies such as Photobiomodulation (PBM). We have developed a novel protocol to validate homogeneity for 3-dimensional silicon phantom models of the human maxilla. Accurately quantifying the light profiles of human tissue can accommodate for varying optical properties that occur between subjects. More importantly, this can help optimize light fluence dosimetry calculations to achieve intended results. Silicon models of identical composition were fabricated into two different shapes: 1 flat-planar cylindrical shaped model, 2) non-flat planar (3-dimensional) mold of the human maxilla. Fabricating homogenous silicon phantom models continues to be a challenge as micro-bubbles can contaminate the compound during the curing process. Integrating both proprietary CBCT and handheld surface acquisition imaging devices confirmed our results to be within 0.5mm of accuracy. This protocol was specifically used to cross-reference and validate homogeneity at various depths of penetration. These results present the first known successful validation of identical silicon tissue phantoms with a flat-planar surface vs. a non-flat 3D planar surface. This proof-of-concept phantom validation protocol is sensitive to the specific variations of 3-dimensional surfaces and can be applied to a workflow used to capture accurate light fluence calculations in the clinical setting.
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Affiliation(s)
- Dennis Sourvanos
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
- Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA
- Institute for Translational Medicine and Therapeutics (ITMAT), Perelman School of Medicine, University of Pennsylvania, PA, USA
| | - Ryan D Hall Morales
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Andreea Dimofte
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
| | - Joseph P Fiorellini
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, PA, USA
- Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA
| | - Timothy C Zhu
- Center for Innovation and Precision Dentistry (CiPD), School of Dental Medicine, School of Engineering, University of Pennsylvania, PA, USA
- Department of Radiation Oncology, Perelman Center for Advanced Medicine, University of Pennsylvania, PA, USA
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19
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Zhang CX, Lou Y, Chi J, Bao XL, Fan B, Li GY. Considerations for the Use of Photobiomodulation in the Treatment of Retinal Diseases. Biomolecules 2022; 12:biom12121811. [PMID: 36551239 PMCID: PMC9775242 DOI: 10.3390/biom12121811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022] Open
Abstract
Photobiomodulation (PBM) refers to the beneficial effect produced from low-energy light irradiation on target cells or tissues. Increasing evidence in the literature suggests that PBM plays a positive role in the treatment of retinal diseases. However, there is great variation in the light sources and illumination parameters used in different studies, resulting in significantly different conclusions regarding PBM's therapeutic effects. In addition, the mechanism by which PBM improves retinal function has not been fully elucidated. In this study, we conducted a narrative review of the published literature on PBM for treating retinal diseases and summarized the key illumination parameters used in PBM. Furthermore, we explored the potential molecular mechanisms of PBM at the retinal cellular level with the goal of providing evidence for the improved utilization of PBM in the treatment of retinal diseases.
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Affiliation(s)
- Chun-Xia Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Yan Lou
- Department of Nephropathy, The Second Hospital of Jilin University, Changchun 130042, China
| | - Jing Chi
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Xiao-Li Bao
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Bin Fan
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
- Correspondence: (B.F.); (G.-Y.L.)
| | - Guang-Yu Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
- Correspondence: (B.F.); (G.-Y.L.)
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20
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White J, Corwin N. Insulin Shocks. J Health Polit Policy Law 2022; 47:731-753. [PMID: 35867535 DOI: 10.1215/03616878-10041149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Some of the news about insulin is shocking. In the United States, people have died because they were rationing a life-saving medication discovered in the 1920s. How could this happen? Perhaps a better question is why anyone should be surprised. The insulin story both illustrates and challenges many understandings of the problems with insurance, treatment, payment, and politics in the US health care system. It particularly highlights consequences of structuring price discounts as rebates to health plans or government instead of as lower individual prices to patients. Perversely, this encourages higher list prices, which, for patients without insurance or with high cost sharing, make insulin less affordable than it would be without the rebates.
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21
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Delgado C, Komatsu R. Patient Blood Management programs for post-partum hemorrhage. Best Pract Res Clin Anaesthesiol 2022; 36:359-369. [PMID: 36513431 DOI: 10.1016/j.bpa.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 09/08/2022] [Indexed: 12/15/2022]
Abstract
Patient blood management (PBM) strategies aim to maintain hemoglobin concentration, optimize hemostasis, and minimize blood loss to improve patient outcomes. Because postpartum hemorrhage (PPH) is a leading cause of maternal mortality and blood product utilization, PBM principles can be applied in its therapeutic approach. First, pre-operative identification of risk factors for PPH and identification of peri-delivery anemia should be conducted. Iron supplementation should be used to optimize hemoglobin concentration before delivery; it can also be used to treat anemia in the postpartum period after severe PPH. Both acute normovolemic hemodilution and intraoperative cell salvage can be effective techniques to reduce allogeneic blood transfusion during or after surgical procedures. Furthermore, these strategies appear to be safe when used in the pregnant population.
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Affiliation(s)
- Carlos Delgado
- Department of Anesthesiology and Pain Medicine, University of Washington, 1959 NE Pacific Street, Box 356340, Seattle, WA 98195, USA.
| | - Ryu Komatsu
- Department of General Anesthesiology and Department of Outcomes Research, Anesthesiology Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA.
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22
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Cappellini MD, Santini V, Braxs C, Shander A. Iron metabolism and iron deficiency anemia in women. Fertil Steril 2022; 118:607-14. [PMID: 36075747 DOI: 10.1016/j.fertnstert.2022.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/03/2022] [Accepted: 08/12/2022] [Indexed: 01/13/2023]
Abstract
Iron deficiency (ID) and iron deficiency anemia (IDA) are highly prevalent among women across their reproductive age. An iron-deficient state has been associated with and causes a number of adverse health consequences, affecting all aspects of the physical and emotional well-being of women. Heavy menstrual bleeding, pregnancy, and the postpartum period are the major causes of ID and IDA. However, despite the high prevalence and the impact on quality of life, ID and IDA among women in their reproductive age is still underdiagnosed and undertreated. In this chapter we summarized the iron metabolism and the diagnosis and treatment of ID and IDA in women.
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23
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Wu J, Qiao J, Nicholas S, Liu Y, Maitland E. The challenge of healthcare big data to China's commercial health insurance industry: evaluation and recommendations. BMC Health Serv Res 2022; 22:1189. [PMID: 36138390 PMCID: PMC9494838 DOI: 10.1186/s12913-022-08574-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 09/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background China’s social medical insurance system faces challenges in financing, product coverage, patient health responsibility sharing and data security, which commercial health insurance companies can help address. Confronting accelerated population aging, the rapid increase of patients with chronic diseases and the maternal and child healthcare needs created by the three-child policy, the Chinese government has encouraged the development of commercial health insurance. But China's commercial health insurance companies face financial sustainability problems, limited product ranges and high operating costs. At the same time, the informatization level of China's healthcare industry, and the value of healthcare big data, is increasing. We analyze and describe the potential application of healthcare big data in the life cycle of China's commercial health insurance system and provide specific action plans for Chinese commercial health insurance companies; identify the challenges to commercial health insurers; and make recommendations for the application of big health data by commercial health insurers. Our recommendations inform healthcare policy makers on the development of commercial health insurance and the improvement of the healthcare financing system. We not only verify the value of healthcare big data, but also identify specific ways that healthcare big data plays in the development of commercial health insurance. Based on the research results, we recommend new policies for government and new uses of healthcare big data for commercial health insurance institutions. The benign development of commercial health insurance will improve the level of health services in China. Methods By interviewing health insurance managers (including actuaries, product managers, business executives, information technology medical workers, and commercial health insurance personnel) and by accessing research papers, industry reports, news reports and public information disclosure documents about commercial health insurance, we describe the impact of healthcare big data on the life cycle of commercial health insurance products and processes. Results We identify the issues and challenges of commercial health insurers in the use of healthcare big data, and advance specific strategies to expand the use of healthcare big data. In the life cycle of commercial health insurance products, healthcare big data can improve premium income, control medical costs and increase operational efficiency. First, healthcare big data can increase premiums, products and services by attenuating moral hazard and adverse selection problems, where high quality clients over-pay and high-risk clients underpay for health insurance. Second, healthcare big data can reduce medical expenses compensation pay-outs by promoting the establishment of a management medical system. Finally, the use of healthcare big data improves operational efficiency by increasing payment speeds, identifying fraud and increasing claim verification processes through automating payments and reducing offline processes. We discuss the obstacles to obtain healthcare big data confronting commercial health insurance companies. The sharing and data mining of healthcare big data brings privacy risks to the insured and there are significant differences in data standards and quality of healthcare big data that limit the application of healthcare big data in commercial health insurance. We recommend that national, regional and local government departments coordinate policies to facilitate the cooperation between commercial health insurance companies and regional healthcare big data platforms. In terms of technology, we recommend the establishment of data sharing platforms and data exchange mechanism across institutions and regions according to nation-wide standards and specifications. Government management departments should establish healthcare big data standards and specification system, promote the construction of healthcare big data and ensure the integrity, authenticity and reliability of health data. We recommend data quality continuous improvement and management mechanisms that combine technology and management. Government regulation should oversee commercial health insurance institutions and establish data security management systems to monitor and supervise the privacy of personal data. Conclusions Healthcare big data can play an important role in the development of China's commercial health insurance industry. Healthcare big data can increase commercial health insurers’ financial viability while providing improved, and cost-effective, products and services. By providing more and better information to insurers, healthcare big data attenuates the asymmetric information problem, addressing moral hazard and adverse selection problems. By combining hospital and medical organization management information systems with insurers’ data management, healthcare big data can help insurers set sustainable premiums, control medical costs and promote operational efficiency. At present, the informatization degree of China's healthcare industry remains limited. To improve the performances, products and services of commercial health insurers, we recommend government reforms in healthcare big data, such as expanding medical industry cooperation; further developing the processes of applying healthcare big data; augmenting data sharing; addressing privacy risks; setting data standards; and improving data quality.
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Affiliation(s)
- Jun Wu
- Dong Fureng Institute of Economic and Social Development, Wuhan University, Wuhan, China
| | - Jiajun Qiao
- Dong Fureng Institute of Economic and Social Development, Wuhan University, Wuhan, China.
| | - Stephen Nicholas
- National Institute of Management and Commerce, Eveleigh, Australia.,University of Newcastle, Callaghan, Australia
| | - Yunqiao Liu
- Dong Fureng Institute of Economic and Social Development, Wuhan University, Wuhan, China
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Mal P, Mukherjee T, Upadhyay AK, Mohanty S, Pattnaik AK. Connecting the dots between inflammatory cascades of obesity and COVID-19 in light of mortal consequences-a review. Environ Sci Pollut Res Int 2022; 29:57040-57053. [PMID: 35731430 PMCID: PMC9213647 DOI: 10.1007/s11356-022-21461-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Obesity is a term that has recently been referred to describe a condition in which a person has become a diseased vessel. Obesity's internal pathology is too mysterious as it has a close resemblance with fatal diseases pathology. Obesity and coronavirus disease 2019 (COVID-19) are simultaneous epidemics declared by many organizations after observing their rampage in the recent world. Oxidative stress, cytokine storm, interleukin, and their contribution to the internal adipocyte environment implicated in the cascades of inflammatory pathology are portrayed here. Major determinants like angiotensin-converting enzyme 2 (ACE2) and renin-angiotensin-aldosterone system (RAAS) axis are highly sensitive molecular factors. Data from various countries suggested a clinical overview of how greater body mass index (BMI) is related to greater COVID-19 risk. It also gives insight into how obese individuals are obligately getting admitted and combating COVID-19 in intensive care unit including children less than 13 years of age under ultimate therapeutic options. There are numerous studies currently taking place for finding a cure for obesity which are mainly focused on natural resources and novel therapies like photobiomodulation (PBM) consisting of laser treatment, infrared treatment, etc. as current pharmacological treatments are reported to have fatal adverse effects. Finally, it is discussed how attenuating obesity will be a solution for future combat strategy. This review gives light on the areas of coagulation, inflammatory parameters, cardiometabolic complications, endothelial dysfunctions, immunological infirmity due to COVID-19 in obese individuals. A conceptual outline about correlation between the inflammatory pathophysiological steps triggering the aggravation of fatal consequences has been drawn in this review.
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Affiliation(s)
- Payel Mal
- Division of Pharmacology, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India
| | - Tuhin Mukherjee
- Division of Pharmacology, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India
| | - Abhay K Upadhyay
- Division of Pharmacology, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India
| | - Satyajit Mohanty
- Division of Pharmacology, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India
| | - Ashok K Pattnaik
- Division of Pharmacology, Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, 835215, Jharkhand, India.
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Liu C, Fu X, Xu Y, Zhang H, Wu X, Sommar J, Zhang L, Wang X, Feng X. Sources and Transformation Mechanisms of Atmospheric Particulate Bound Mercury Revealed by Mercury Stable Isotopes. Environ Sci Technol 2022; 56:5224-5233. [PMID: 35385257 DOI: 10.1021/acs.est.1c08065] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study examined the isotopic composition of particulate bound mercury (PBM) in 10 Chinese megacities and explored the associated sources and transformation mechanisms. PBM in these cities was characterized by negative δ202Hg (mean: -2.00 to -0.78‰), slightly negative to highly positive Δ199Hg (mean: -0.04 to 0.47‰), and slightly positive Δ200Hg (mean: 0.02 to 0.06‰) values. The positive PBM Δ199Hg signatures were likely caused by physiochemical reactions in aerosols. The Δ199Hg/Δ201Hg ratio varied from 0.94 to 1.39 in the cities and increased with the increase in the corresponding mean Δ199HgPBM value. We speculate that, in addition to the photoreduction of oxidized Hg, other transformation mechanisms in aerosols (e.g., isotope exchange, complexation, and oxidation, which express nuclear volume effects) also shape the Δ199HgPBM signatures in the present study. These processes are likely enhanced in the presence of strong gas-particle partitioning of gaseous oxidized Hg (GOM) and elevated levels of redox active metals (e.g., Fe), halides, and elemental carbon. Based on Δ200HgPBM data presented in this and previous studies, we estimate that large proportions (∼47 ± 22%) of PBM were sourced from the oxidation of gaseous elemental Hg followed by the partitioning of GOM onto aerosols globally, indicating the transformation of Hg(0) to PBM as an important sink of atmospheric Hg(0).
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Affiliation(s)
- Chen Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuewu Fu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Yue Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Hui Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xian Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jonas Sommar
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Leiming Zhang
- Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto M3H 5T4, Ontario, Canada
| | - Xun Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Hanna R, Pawelczyk-Madalińska M, Sălăgean T, Nap ME, Bordea IR, Benedicenti S. A Novel Concept of Combined High-Level-Laser Treatment and Transcutaneous Photobiomodulation Therapy Utilisation in Orthodontic Periodontal Interface Management. Sensors (Basel) 2022; 22:2263. [PMID: 35336433 DOI: 10.3390/s22062263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/23/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023]
Abstract
This case report is aimed to demonstrate the synergetic effects of λ940 nm laser photobiomodulation (PBM) therapy in augmenting the advantages of high-level-laser treatment (HLLT)-mediated reaction orthodontic periodontal interface management. Materials and Methods: A 32-year-old female who presented with a persistent gummy smile of upper incisors and low upper midline frenum attachment post-orthodontic treatment, was seeking a better smile appearance. She had a history of delayed wound healing without underlying medical conditions; otherwise, she was fit and healthy. She underwent laser ablation of the upper midline frenum and gingivoplasty of the upper incisors region with λ940 nm and λ2780, respectively, as well as transcutaneous PBM therapy (λ940 nm) to accelerate wound healing. The laser protocols were as follows: λ2780 nm: power output—2 W, pulse width—60 μs, free running pulse (FRP), spot area—0.0016 cm2, pulse repetition rate—25 pulses per second (s), 80 mJ/pulse, 90 s, λ940 nm: 1.2 W, continuous wave (CW) emission mode, 300 μm, 60 s; whereas the adjunctive λ940 nm induced-PBM parameters were as follows: power output—1.4 W, CW—120 s, single application, spot area—2.8 cm2. An acceleration of the wound healing was observed on the 4th day of treatment with no immediate or post-operative complications. The results showed no functional or aesthetic relapses at a long-term follow-up of 6 months. The authors concluded that λ940 nm laser-PBM can provide a synergetic effect to HLLT in accelerating wound healing and offering a precision smile with minimal to none post-operative complications. It is safe and justifiable to utilise dual therapy over the conventional methods, which serves our patients’ needs in our daily practice and in various clinical indications. The concept and laser protocols of this clinical case report can pave the roadmap for future extensive studies.
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Helmer P, Hottenrott S, Steinisch A, Röder D, Schubert J, Steigerwald U, Choorapoikayil S, Meybohm P. Avoidable Blood Loss in Critical Care and Patient Blood Management: Scoping Review of Diagnostic Blood Loss. J Clin Med 2022; 11:320. [PMID: 35054014 DOI: 10.3390/jcm11020320] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/27/2021] [Accepted: 01/04/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Anemia remains one of the most common comorbidities in intensive care patients worldwide. The cause of anemia is often multifactorial and triggered by underlying disease, comorbidities, and iatrogenic factors, such as diagnostic phlebotomies. As anemia is associated with a worse outcome, especially in intensive care patients, unnecessary iatrogenic blood loss must be avoided. Therefore, this scoping review addresses the amount of blood loss during routine phlebotomies in adult (>17 years) intensive care patients and whether there are factors that need to be improved in terms of patient blood management (PBM). Methods: A systematic search of the Medline Database via PubMed was conducted according to PRISMA guidelines. The reported daily blood volume for diagnostics and other relevant information from eligible studies were charted. Results: A total of 2167 studies were identified in our search, of which 38 studies met the inclusion criteria (9 interventional studies and 29 observational studies). The majority of the studies were conducted in the US (37%) and Canada (13%). An increasing interest to reduce iatrogenic blood loss has been observed since 2015. Phlebotomized blood volume per patient per day was up to 377 mL. All interventional trials showed that the use of pediatric-sized blood collection tubes can significantly reduce the daily amount of blood drawn. Conclusion: Iatrogenic blood loss for diagnostic purposes contributes significantly to the development and exacerbation of hospital-acquired anemia. Therefore, a comprehensive PBM in intensive care is urgently needed to reduce avoidable blood loss, including blood-sparing techniques, regular advanced training, and small-volume blood collection tubes.
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Rufato FCT, de Sousa LG, Scalize PH, Gimenes R, Regalo IH, Rosa AL, Beloti MM, de Oliveira FS, Bombonato-Prado KF, Regalo SCH, Siéssere S. Texturized P(VDF-TrFE)/BT membrane enhances bone neoformation in calvaria defects regardless of the association with photobiomodulation therapy in ovariectomized rats. Clin Oral Investig 2021. [PMID: 34370100 DOI: 10.1007/s00784-021-04089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES The purpose of this investigation was to evaluate in vivo the response of bone tissue to photobiomodulation when associated with texturized P(VDF-TrFE)/BT in calvaria defects of ovariectomized rats. MATERIALS AND METHODS Wistar Hannover rats were submitted to ovariectomy/control surgery. Calvaria bone defects of 5-mm diameter were performed after 90 days of ovariectomy. The animals were divided into OVX (without laser (L) and membrane), OVX + P(VDF-TrFE)/BT, OVX + P(VDF-TrFE)/BT + L, and OVX + PTFE + L. It was utilized a low-intensity gallium-aluminum-arsenide laser (GaAlAs) with 780-nm wavelength and 30-J/cm2 energy density in 12 sessions (120 s). Thirty days after the bone defect the animals were euthanized for histological, microtomographic, and molecular evaluation. Quantitative analysis was analyzed by statistical software for p < 0.05. RESULTS Histological parameters showed bone tissue formation at the borders of all group defects. The association of photobiomodulation and texturized P(VDF-TrFE)/BT was not synergistic and did not show significant changes in morphometric analysis and biomarkers gene expression. Nevertheless, texturized P(VDF-TrFE)/BT membrane enhanced bone repair regardless of the association with photobiomodulation therapy, with an increase of connectivity density when compared to the OVX + PTFE + L group. The association of photobiomodulation therapy and PTFE was synergistic, increasing the expression of Runx2, Alp, Bsp, Bglap, Sp7, and Rankl, even though not enough to reflect significance in the morphometric parameters. CONCLUSIONS The utilization of texturized P (VDF-TrFE)/BT, regardless of the association with photobiomodulation therapy, enhanced bone repair in an experimental model of osteoporosis.
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Li Q, Cui Y, Xu B, Wang Y, Lv F, Li Z, Li H, Chen X, Peng X, Chen Y, Wu E, Qu D, Jian Y, Si H. Main active components of Jiawei Gegen Qinlian decoction protects against ulcerative colitis under different dietary environments in a gut microbiota-dependent manner. Pharmacol Res 2021; 170:105694. [PMID: 34087350 DOI: 10.1016/j.phrs.2021.105694] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/20/2021] [Accepted: 05/23/2021] [Indexed: 02/07/2023]
Abstract
As an effective drug against acute enteritis diarrhea, Gegen Qinlian decoction (GQD) has a history of 2000 years. However, the potential molecular mechanism through which GQD could protect intestinal barrier from ulcerative colitis (UC) still remains undefined. As an important part of the homeostasis of the colon, gut microbiota is closely related to the dynamic evolution of the surrounding environment and the adjustment of dietary structure. At present, the effectiveness and mechanism of Jiawei Gegen Qinlian decoction against UC in different dietary environments are not clear. Here, the main active components of Jiawei Gegen Qinlian Decoction (PBM), were selected to construct a reasonable and effective compound scheme. We adopted "5% dextran sulfate sodium (DSS)" and "high temperature and humidity + high sugar and high fat + alcohol + 5%DSS" to induce UC rat models in general environment and UC rat models in Lingnan area, respectively. Then, we examined the therapeutic effects of PBM (89.96 mg/kg and 179.92 mg/kg) on two kinds of UC rats. The role of gut microbiota in the anti-UC effect of PBM was identified by intestinal flora consumption and fecal microbiota transplantation (FMT) experiments. Subsequently, we monitored the alterations of gut microbiota and fecal metabolism in the rat colon by 16Sr DNA technique and targeted metabonomics, respectively. The colon inflammation of the PBM-treated and the FMT-treated rats both showed significant relief, as evidenced by a reduction in body weight loss, bloody stool, diarrhea, disease activity index (DAI) score, shortening of colon length as well as decreased colon histology damage. Interestingly enough, the depletion of intestinal flora took away the protective effect of PBM, confirming the importance of intestinal flora in the anti-UC effect of PBM. Then our findings suggested that PBM could not only regulate the gut microbiota by increasing Akkermansia and Romboutsia but also decrease Escherichia-Shigella. More importantly, PBM could increase the production of propionate and total short-chain fatty acids (SCFAs) in colitis rats, regulate medium and long chain fatty acids (M-LCFAs), maintain bile acids (BAs) homeostasis, and regulate amino acids (AAs) metabolism. The transformation of intestinal environment might be related to the upregulation of anti-inflammation, anti-oxidation and tight junction protein expression in colonic mucosa. In summary, PBM showed potential for anti-UC activity through gut microbiota dependence and was expected to be a complementary and alternative medicine herb therapy.
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Affiliation(s)
- Qinmei Li
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Yao Cui
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Baichang Xu
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Yuhan Wang
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Feifei Lv
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Zheng Li
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Huan Li
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Xiaogang Chen
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Xiaomin Peng
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Yating Chen
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Enyun Wu
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Dongshuai Qu
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Yichen Jian
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
| | - Hongbin Si
- College of Animal Sciences and Technology, Guangxi University, Nanning, China.
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Kocherova I, Bryja A, Błochowiak K, Kaczmarek M, Stefańska K, Matys J, Grzech-Leśniak K, Dominiak M, Mozdziak P, Kempisty B, Dyszkiewicz-Konwińska M. Photobiomodulation with Red and Near-Infrared Light Improves Viability and Modulates Expression of Mesenchymal and Apoptotic-Related Markers in Human Gingival Fibroblasts. Materials (Basel) 2021; 14:ma14123427. [PMID: 34205573 PMCID: PMC8233986 DOI: 10.3390/ma14123427] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 01/05/2023]
Abstract
Photobiomodulation (PBM), also called low-level laser treatment (LLLT), has been considered a promising tool in periodontal treatment due to its anti-inflammatory and wound healing properties. However, photobiomodulation's effectiveness depends on a combination of parameters, such as energy density, the duration and frequency of the irradiation sessions, and wavelength, which has been shown to play a key role in laser-tissue interaction. The objective of the study was to compare the in vitro effects of two different wavelengths-635 nm and 808 nm-on the human primary gingival fibroblasts in terms of viability, oxidative stress, inflammation markers, and specific gene expression during the four treatment sessions at power and energy density widely used in dental practice (100 mW, 4 J/cm2). PBM with both 635 and 808 nm at 4 J/cm2 increased the cell number, modulated extracellular oxidative stress and inflammation markers and decreased the susceptibility of human primary gingival fibroblasts to apoptosis through the downregulation of apoptotic-related genes (P53, CASP9, BAX). Moreover, modulation of mesenchymal markers expression (CD90, CD105) can reflect the possible changes in the differentiation status of irradiated fibroblasts. The most pronounced results were observed following the third irradiation session. They should be considered for the possible optimization of existing low-level laser irradiation protocols used in periodontal therapies.
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Affiliation(s)
- Ievgeniia Kocherova
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (I.K.); (A.B.); (B.K.)
- Department of Rheumatology, Center of Experimental Rheumatology, University Hospital Zurich, University of Zurich, 8952 Schlieren, Switzerland
| | - Artur Bryja
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (I.K.); (A.B.); (B.K.)
| | - Katarzyna Błochowiak
- Department of Oral Surgery and Periodontology, Poznan University of Medical Sciences, 61-812 Poznań, Poland;
| | - Mariusz Kaczmarek
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznań, Poland;
- Gene Therapy Laboratory, Department of Cancer Diagnostics and Immunology, Greater Poland Cancer Centre, 61-866 Poznań, Poland
| | - Katarzyna Stefańska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznań, Poland;
| | - Jacek Matys
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (J.M.); (K.G.-L.); (M.D.)
| | - Kinga Grzech-Leśniak
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (J.M.); (K.G.-L.); (M.D.)
- Department of Periodontics, School of Dentistry Virginia Commonwealth University, VCU, Richmond, VA 23298, USA
| | - Marzena Dominiak
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (J.M.); (K.G.-L.); (M.D.)
| | - Paul Mozdziak
- Physiology Graduate Program, North Carolina State University, Raleigh, NC 27695, USA;
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Bartosz Kempisty
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (I.K.); (A.B.); (B.K.)
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznań, Poland;
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University in Torun, 87-100 Toruń, Poland
| | - Marta Dyszkiewicz-Konwińska
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (I.K.); (A.B.); (B.K.)
- Department of Biomaterials and Experimental Dentistry, Poznan University of Medical Sciences, 60-812 Poznań, Poland
- Correspondence: ; Tel.: +48-61-8547067
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Affiliation(s)
- Andrew P Rice
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX 77096, USA
| | - Jason T Kimata
- Department of Molecular Virology & Microbiology, Baylor College of Medicine, Houston, TX 77096, USA
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Serrage HJ, Cooper PR, Palin WM, Horstman P, Hadis M, Milward MR. Photobiomodulation of oral fibroblasts stimulated with periodontal pathogens. Lasers Med Sci 2021; 36:1957-1969. [PMID: 33991267 PMCID: PMC8593050 DOI: 10.1007/s10103-021-03331-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 05/03/2021] [Indexed: 01/03/2023]
Abstract
Photobiomodulation (PBM) utilises light energy to treat oral disease, periodontitis. However, there remains inconsistency in the reporting of treatment parameters and a lack of knowledge as to how PBM elicits its molecular effects in vitro. Therefore, this study aimed to establish the potential immunomodulatory effects of blue and near infra-red light irradiation on gingival fibroblasts (GFs), a key cell involved in the pathogenesis of periodontitis. GFs were seeded in 96-well plates in media + / - Escherichia coli lipopolysaccharide (LPS 1 μg/ml), or heat-killed Fusobacterium nucleatum (F. nucleatum, 100:1MOI) or Porphyromonas gingivalis (P. gingivalis, 500:1MOI). Cultures were incubated overnight and subsequently irradiated using a bespoke radiometrically calibrated LED array (400-830 nm, irradiance: 24 mW/cm2 dose: 5.76 J/cm2). Effects of PBM on mitochondrial activity (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and adenosine triphosphate (ATP) assays, total reactive oxygen species production (ROS assay) and pro-inflammatory/cytokine response (interleukin-8 (IL-8) and tumour growth factor-β1 (TGFβ1)) were assessed 24 h post-irradiation. Data were analysed using one-way ANOVA followed by the Tukey test. Irradiation of untreated (no inflammatory stimulus) cultures at 400 nm induced 15%, 27% and 13% increases in MTT, ROS and IL-8 levels, respectively (p < 0.05). Exposure with 450 nm light following application of P. gingivalis, F. nucleatum or LPS induced significant decreases in TGFβ1 secretion relative to their bacterially stimulated controls (p < 0.001). Following stimulation with P. gingivalis, 400 nm irradiation induced 14% increases in MTT, respectively, relative to bacteria-stimulated controls (p < 0.05). These findings could identify important irradiation parameters to enable management of the hyper-inflammatory response characteristic of periodontitis.
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Affiliation(s)
- H J Serrage
- Oral Microbiology Unit, Department of Oral and Dental Science, University of Bristol, Bristol BS1 2LY, UK.
| | - P R Cooper
- School of Dentistry, University of Birmingham, Birmingham, UK
- Faculty of Dentistry, Department of Oral Biology, Sir John Walsh Research Institute University of Otago, Dunedin, New Zealand
| | - W M Palin
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - P Horstman
- Philips Research, Eindhoven, Netherlands
| | - M Hadis
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - M R Milward
- School of Dentistry, University of Birmingham, Birmingham, UK
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Biehl C, Schmitt J, Stoetzel S, Malhan D, Hassan F, Knapp G, Heiss C, El Khassawna T. DXA reference values of the humanoid sheep model in preclinical studies. PeerJ 2021; 9:e11183. [PMID: 33986984 PMCID: PMC8092102 DOI: 10.7717/peerj.11183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 03/08/2021] [Indexed: 12/04/2022] Open
Abstract
Background Merino land sheep are a popular pre-clinical large animal model in research on systemic skeletal diseases such as osteoporosis. Interpretation of studies is difficult because many reference parameters are missing or not established. This study aims to determine the reference parameters of the skeletal system (peak bone mass = PBM, T-Score). A defined standard allows an easier comparison of the study data of the animal model with human studies (T-Score). Materials and methods A total of 116 Dual Energy X-ray Absorptiometry DXA measurements were performed on 74 untreated sheep. The average age of the animals was 57 months. The BMD, BMC, and fat content of the sheep were determined by the relevant human region of interest (ROI). From this, the PBM and from this the T-score for each of the animals were calculated. Results Using 682 DXA measurements BMD and BMC were determined to provide an indication to PBM. For BMD a significant correlation to the age of the animals was observed (p = 0.043). A significant correlation was also seen for BMC (B) (p ≤ 0.001). In the age-dependent analysis, a widespread of values above the linear regression line was measured for both BMD and BMC between the 50th and 90th months of life. From an age of about 90 months, a wider spread of values below the linear regression line was found, although the average values continued to rise. Discussion The evaluation of the 116 DXA measurements allowed the determination of the PBM for merino land sheep. With the help of the PBM, a T-score was calculated for each animal. The statistical analysis shows significant differences in BMD values between the different animal groups in each of the four ROIs investigated. Individual control or sham groups per study are therefore not sufficient. To improve comparability, an independent reference group should be established. Conclusion An independent reference group for PBM and a T-score was established from four to six-year-old animals. The bone density increases with the age of the animals. Around the fourth year of life, a first peak could be observed. Also, after the seventh year of life, a further peak with the beginning plateau phase was observed. When compiling a group of animals for an osteoporosis model, animals from the age of seven years should, therefore, be used.
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Affiliation(s)
- Christoph Biehl
- Department of Trauma-, Hand- and Reconstructive Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany.,Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Jakob Schmitt
- Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Sabine Stoetzel
- Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Deeksha Malhan
- Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Fathi Hassan
- Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Gero Knapp
- Department of Trauma-, Hand- and Reconstructive Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany.,Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Christian Heiss
- Department of Trauma-, Hand- and Reconstructive Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany.,Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
| | - Thaqif El Khassawna
- Experimental Trauma Surgery, Justus Liebig Universität Gießen, Giessen, Hesse, Germany
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Klein A, Agarwal S, Cholley B, Fassl J, Griffin M, Kaakinen T, Mzallassi Z, Paulus P, Rex S, Siegemund M, van Saet A. A survey of patient blood management for patients undergoing cardiac surgery in nine European countries. J Clin Anesth 2021; 72:110311. [PMID: 33905900 DOI: 10.1016/j.jclinane.2021.110311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/22/2022]
Abstract
STUDY OBJECTIVE To describe and compare patient blood management (PBM) practices in cardiac surgery in nine European countries and identify the main risk factors for bleeding or transfusion according to the surveyed centres. DESIGN We set up an online survey to evaluate PBM practices in two clinical scenarios, risk factors for bleeding or transfusion, and previous experience with antifibrinolytics. SETTING This survey was completed by European anesthesiologists in 2019. PATIENTS No patients were included in the survey. INTERVENTION None. MEASUREMENTS We evaluated the degree of implementation of PBM practices in patients undergoing cardiac surgery. MAIN RESULTS Ninety-eight of 177 responses (38%) were complete with variable response rates by country. In a non-emergent situation, no respondents would transfuse red cells preoperatively in an anaemic patient, while cell salvage (89%) and antifibrinolytics (82%) would almost always be used. Optimization of Hemoglobin level (36%) and use of off-pump techniques (34%), minimally invasive surgery (25%) and relatively recently-developed CPB technologies such as mini-bypass (32%) and autologous priming (38%), varied greatly across countries. In an emergent clinical situation, topical haemostatic agents would frequently be used (61%). Tranexamic acid (72%) and aprotinin (20%) were the main antifibrinolytics used, with method of administration and dose varying markedly across countries. Five factors were considered to increase risk of bleeding or transfusion by at least 90% of respondents: pre-operative anaemia, prior cardiac surgery, clopidogrel 5 days or less before surgery, use of other P2Y12 inhibitors at any point, and thrombocytopenia <100.109 platelets/mm3. CONCLUSION PBM guidelines are not universally implemented in European cardiac surgery centres or countries, resulting in discrepancies in techniques and products used for a given clinical situation.
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Affiliation(s)
- Andrew Klein
- Consultant, Department of Anaesthesia and Intensive Care, Royal Papworth Hospital, Cambridge Biomedical Campus, Cambridge, UK.
| | - Seema Agarwal
- Consultant in Cardiac Anaesthesia and ICU Honorary Senior Lecturer Manchester University Hospitals, Manchester, UK
| | - Bernard Cholley
- AP-HP Hôpital Européen Georges Pompidou, 20 rue Leblanc, F-75015 Paris, France; Université de PARIS, INSERM UMR-S 1140, Innovations Thérapeutiques en Hémostase, Faculté de Pharmacie, 4 avenue de l'observatoire, 75006 Paris, France
| | - Jens Fassl
- Herzzentrum Dresden GmbH Universitätsklinik an der Technischen Universität Dresden, Fetscherstraße 76, 01307 Dresden, Germany
| | - Michael Griffin
- Mater University Hospital and Mater Private Hospital, Dublin, Associate Professor of Anaesthesiology & Perioperative Medicine, UCD Medical School, Irish Medical Council, Dublin, Ireland
| | - Timo Kaakinen
- Research Group of Surgery, Anaesthesiology and Intensive Care Medicine, Medical Research Center of Oulu University, Oulu University Hospital, Oulu, Finland
| | - Zineb Mzallassi
- Department of Anesthesiology; Erasmus Medical Center, Rotterdam, the Netherlands
| | - Patrick Paulus
- Kepler University Hospital GmbH, Med Campus III, Department of Anesthesiology and Intensive Care Medicine, Krankenhausstrasse 9, 4020 Linz, Austria
| | - Steffen Rex
- Department of Anesthesiology, University Hospitals Leuven, Leuven, Belgium; and Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Martin Siegemund
- Intensive Care Unit Department of Clinical Research, University Basel, Switzerland
| | - Annewil van Saet
- Department of Anesthesiology; Erasmus Medical Center, Rotterdam, the Netherlands
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Ngwira LG, Khan K, Maheswaran H, Sande L, Nyondo-Mipando L, Smith SC, Petrou S, Niessen L. A Systematic Literature Review of Preference-Based Health-Related Quality-of-Life Measures Applied and Validated for Use in Childhood and Adolescent Populations in Sub-Saharan Africa. Value Health Reg Issues 2021; 25:37-47. [PMID: 33765659 DOI: 10.1016/j.vhri.2020.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 11/18/2020] [Accepted: 11/30/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Consideration of health status in children and adolescents now includes broader concepts such as health-related quality-of-life (HRQoL). Globally, there is a need for relevant preference-based HRQoL measures (PBMs) for use in children and adolescents, yet measurement of HRQoL in these groups presents particular challenges. This article systematically reviews the available generic childhood PBMs and their application and cross-cultural validation in sub-Saharan African (sSA). METHODS A systematic review of published literature from January 1, 1990, to February 8, 2017, was conducted using MEDLINE (through OvidSP), EMBASE (OvidSP), EconLit (EBSCOhost), PsycINFO, Web of Science, and PubMed. RESULTS A total of 220 full-text articles were included in a qualitative synthesis. Ten generic childhood PBMs were identified, of which 9 were adapted from adult versions and only 1 was developed specifically for children. None of the measures were originally developed in sSA or other resource-constrained settings. The Health Utilities Index Mark 3 (HUI3) and the EQ-5D-Y were the only measures that had been applied in sSA settings. Further, the HUI3 and the EQ-5D-Y were the only generic childhood PBM that attempted to establish cross-cultural validation in sSA. Five of the 6 of these validation studies were conducted using the EQ-5D-Y in a single country, South Africa. CONCLUSIONS The findings show that application of generic childhood PBMs in sSA settings has hitherto been limited to the HUI3 and EQ-5D-Y. Most adaptations of existing measures take an absolutist approach, which assumes that measures can be used across cultures. Nevertheless, there is also need to ensure linguistic and conceptual equivalence and undertake validation across a range of sSA cultural contexts.
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Affiliation(s)
- Lucky G Ngwira
- Liverpool School of Tropical Medicine & Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Chichiri, Malawi.
| | - Kamran Khan
- Warwick Medical School, University of Warwick, Coventry, England
| | | | - Linda Sande
- London School of Hygiene & Tropical Medicine & Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Chichiri, Malawi
| | - Linda Nyondo-Mipando
- Health Systems Department, College of Medicine, Chimutu Building, Chichiri, Malawi
| | - Sarah C Smith
- London School of Hygiene & Tropical Medicine, London, England
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Oxford, England
| | - Louis Niessen
- Liverpool School of Tropical Medicine & John Hopkins School of Public Health, Pembroke Place, Liverpool, England
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Sterczała B, Grzech-Leśniak K, Michel O, Trzeciakowski W, Dominiak M, Jurczyszyn K. Assessment of Human Gingival Fibroblast Proliferation after Laser Stimulation In Vitro Using Different Laser Types and Wavelengths (1064, 980, 635, 450, and 405 nm)-Preliminary Report. J Pers Med 2021; 11:jpm11020098. [PMID: 33557038 PMCID: PMC7913795 DOI: 10.3390/jpm11020098] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 12/18/2022] Open
Abstract
Purpose: to assess the effect of photobiomodulation (PBM) on human gingival fibroblast proliferation. Methods: The study was conducted using the primary cell cultures of human fibroblasts collected from systemically healthy donors. Three different laser types, Nd:YAG (1064 nm), infrared diode laser (980 nm), and prototype led laser emitting 405, 450, and 635 nm were used to irradiate the fibroblasts. Due to the patented structure of that laser, it was possible to irradiate fibroblasts with a beam combining two or three wavelengths. The energy density was 3 J/cm2, 25 J/cm2, 64 J/cm2. The viability and proliferation of cells were determined using the (Thiazolyl Blue Tetrazolium Blue) (MTT) test conducted 24, 48, and 72 h after laser irradiation. Results: The highest percentage of mitochondrial activity (MA = 122.1%) was observed in the group irradiated with the 635 nm laser, with an energy density of 64 J/cm2 after 48 h. The lowest percentage of MA (94.0%) was observed in the group simultaneously irradiated with three wavelengths (405 + 450 + 635 nm). The use of the 405 nm laser at 25 J/cm2 gave similar results to the 635 nm laser. Conclusions: The application of the 635 nm and 405 nm irradiation caused a statistically significant increase in the proliferation of gingival fibroblasts.
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Affiliation(s)
- Barbara Sterczała
- Dental Surgery Department, Wroclaw Medical University, 50-425 Wroclaw, Poland; (M.D.); (K.J.)
- Correspondence: ; Tel.: +48-502-932-269
| | - Kinga Grzech-Leśniak
- Laser Laboratory at Dental Surgery Department, Wroclaw Medical University, 50-425 Wroclaw, Poland;
- Department of Periodontics, School of Dentistry, Virginia Commonwealth University, VCU, Richmond, VA 23298, USA
| | - Olga Michel
- Department of Molecular and Cell Biology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Witold Trzeciakowski
- Institute of High Pressure Physics, Polish Academy of Sciences, 01-142 Warsaw, Poland;
| | - Marzena Dominiak
- Dental Surgery Department, Wroclaw Medical University, 50-425 Wroclaw, Poland; (M.D.); (K.J.)
| | - Kamil Jurczyszyn
- Dental Surgery Department, Wroclaw Medical University, 50-425 Wroclaw, Poland; (M.D.); (K.J.)
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Castaño-Rodriguez C, Honrubia JM, Gutiérrez-Álvarez J, Sola I, Enjuanes L. Viral PDZ Binding Motifs Influence Cell Behavior Through the Interaction with Cellular Proteins Containing PDZ Domains. Methods Mol Biol 2021; 2256:217-36. [PMID: 34014525 DOI: 10.1007/978-1-0716-1166-1_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Viruses have evolved to interact with their hosts. Some viruses such as human papilloma virus, dengue virus, SARS-CoV, or influenza virus encode proteins including a PBM that interact with cellular proteins containing PDZ domains. There are more than 400 cellular protein isoforms with these domains in the human genome, indicating that viral PBMs have a high potential to influence the behavior of the cell. In this review we analyze the most relevant cellular processes known to be affected by viral PBM-cellular PDZ interactions including the establishment of cell-cell interactions and cell polarity, the regulation of cell survival and apoptosis and the activation of the immune system. Special attention has been provided to coronavirus PBM conservation throughout evolution and to the role of the PBMs of human coronaviruses SARS-CoV and MERS-CoV in pathogenesis.
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Al-Ayyadhi N, Refaat LAE, Ibrahim MM, Abd ElGalil HM. Screening for Bone Mineral Density and Assessment Knowledge Level of Low Peak Bone Risk Factors and Preventive Practices Among Kuwaiti Future Mothers. J Multidiscip Healthc 2020; 13:1983-1991. [PMID: 33376338 PMCID: PMC7755344 DOI: 10.2147/jmdh.s280261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/19/2020] [Indexed: 11/23/2022] Open
Abstract
Background Attaining greater peak bone mass (PBM) prior to the onset of bone loss is getting increasing public health attention as healthy strong bones are essential to maintain our life. Females are more susceptible to bone loss. Knowledge and awareness about low peak bone mass and its related risk factors are important contributors to its preventive behavior. Objective To screen apparently healthy young Kuwaiti future mothers for low bone mineral density (BMD) and to assess their knowledge level about determinants of PBM and preventive practices. Methods A cross-sectional comparative study on 445 eligible women aged 18–35 years (either students or employees from Kuwait University) was performed. Data on socio-demographic and lifestyle variables were obtained by a semi-structured questionnaire. Their knowledge was assessed using the modified Osteoporosis Knowledge Assessment Tool (OKAT). Bone mineral Density (BMD) was measured using Quantitative Ultrasonography (QUS). Results More than half (59.3%) of females had poor knowledge. A statistically significant relation was noted between the overall knowledge score and age, college, occupation, and socioeconomic class (P<0.05 for each). Only 13.9% have low Z-score by QUS. By logistic regression, less carbonated beverages and coffee consumption positively affect BMD, while inadequate exercises level, indoor exposure to sunlight, and less frequency of brisk walking negatively affect BMD. Conclusion Unacceptable knowledge score significantly associated with BMD Z-score status. More attention should be devoted to education programs targeting adolescents and young females to promote knowledge about PBM and practice towards accrual and maintenance of bone health.
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Affiliation(s)
- Najla Al-Ayyadhi
- Public Health Department, Ministry of Health, Kuwait City, Kuwait
| | - Laila Abd ElRaheem Refaat
- Community and Occupational Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Mahasen Mohamed Ibrahim
- Community and Occupational Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Heba Mohamed Abd ElGalil
- Community and Occupational Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
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Rajendran NK, Houreld NN, Abrahamse H. Photobiomodulation reduces oxidative stress in diabetic wounded fibroblast cells by inhibiting the FOXO1 signaling pathway. J Cell Commun Signal 2020; 15:195-206. [PMID: 33052534 DOI: 10.1007/s12079-020-00588-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 09/28/2020] [Indexed: 12/16/2022] Open
Abstract
This study aimed to elucidate the underlying molecular mechanism of photobiomodulation (PBM) in attenuating oxidative stress in diabetic wounded fibroblast cells. Cell models were exposed to PBM at a wavelength of 660 nm (fluence of 5 J/cm2, and power density of 11.2 mW/cm2) or 830 nm (fluence of 5 J/cm2, and power density of 10.3 mW/cm2). Non-irradiated cell models were used as controls. Cellular migration was determined at regular time intervals (0, 12, 24 and 48 h) using inverted light microscopy. Cell viability was determined by the Trypan blue exclusion assay. The levels of enzymic antioxidants superoxide dismutase (SOD), catalase (CAT), and heme oxygenase (HMOX1) were determined by the enzyme linked immunosorbent assay (ELISA). The alteration in the levels of AKT and FOXO1 was determined by immunofluorescence and western blotting. Upon PBM treatment, elevated oxidative stress was reversed in diabetic and diabetic wounded fibroblast cells. The reduced oxidative stress was represented by decreased FOXO1 levels and increased levels of SOD, CAT and HMOX1. This might be due to the activation of the AKT signaling pathway. This study concluded that treatment with PBM progressed diabetic wound healing by attenuating oxidative stress through inhibition of the FOXO1 signaling pathway.
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Affiliation(s)
- Naresh Kumar Rajendran
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
| | - Nicolette Nadene Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
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Abstract
Major trauma is a frequent cause of death, and is the leading cause of death in the younger agegroups. Severe bleeding is often responsible for early mortality. The background of the latter is the trauma-induced coagulopathy (TIC), which - often very early - develops after the onset of bleeding. The high amount of blood products, i.e., massive transfusion administered during the management of traumatic bleeding can result in severe, even fatal complications. Modern, aggressive management of masssive traumatic bleeding is effective in reducing exsanguination and mortality or late complications. This method also fits into the concept of Patient Blood Management. This review deals with the up-to-date, goal-directed, preventive management of traumatic bleeding and coagulopathy, with emphasis on theoretical grounds. The aim is to present the essence of this management method also to those who are not directly involved in this activity. Orv Hetil. 2020; 161(37): 1599-1605.
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Affiliation(s)
- Zoltán Szentkereszty
- Központi Aneszteziológiai és Intenzív Terápiás Osztály,Debreceni Egyetem Kenézy Gyula Egyetemi Kórház, Debrecen, Bartók Béla út 2-26., 4032
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Silveira VS, Mayer L, Gerhardt de Oliveira M, de Carvalho ALH, Weber JBB. Systemic Effects of Photobiomodulation on the Morphology of the Thyroid and Sublingual Glands: A Study in Rabbits. Photobiomodul Photomed Laser Surg 2020; 38:425-430. [PMID: 32667862 DOI: 10.1089/photob.2019.4701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Objective: To investigate whether photobiomodulation (PBM) applied in a clinical situation with the purpose of improving the healing process of implants placed in the rabbit mandible would cause any morphological change in the thyroid and sublingual glands as a systemic effect of laser irradiation. Methods: Thirty-two New Zealand rabbits were randomly divided into four groups of eight animals each, one control group (CI, nonirradiated animals) and three experimental groups (EI, EII, and EIII) that received PBM postoperatively with an aluminum/gallium/arsenide laser diode (Theralase®) at a wavelength of 830 nm (infrared) and 50 mW output power applied to two irradiation fields per session, for a total of seven sessions. All rabbits underwent surgical extraction of the mandibular left incisor, followed by immediate placement of an osseointegrated implant in the fresh socket. The experimental groups EI, EII, and EIII received PBM at an energy density of 5, 2.5, and 10 J/cm2, respectively, per irradiation field. Results: There was no histomorphometric change in any of the groups. Conclusions: PBM, based on the irradiation protocol used in this study, does not cause morphological changes in the thyroid and sublingual glands when used to stimulate peri-implant bone healing in the rabbit mandible.
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Affiliation(s)
- Vinícius Salim Silveira
- Advanced Education Program in Oral and Maxillofacial Surgery, Technological Dental School CEEO (FATEC Dental), Igrejinha, Rio Grande do Sul, Brazil
| | - Luciano Mayer
- Oral and Maxillofacial Surgery Department, Graduate Program in Dentistry, School of Dentistry, Universidade Federal da Bahia (UFB), Salvador, Bahia, Brazil.,Graduate Program in Implant Therapy at Associação Gaúcha de Ortodontia (AGOR), Porto Alegre, Rio Grande do Sul, Brazil
| | - Marília Gerhardt de Oliveira
- Grupo Hospitalar Conceição (GHC), National Council for Scientific and Technological Development (CNPq), Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana Luísa Homem de Carvalho
- School of Health and Life Sciences, Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
| | - João Batista Blessmann Weber
- School of Health and Life Sciences, Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
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Pyta H, Widziewicz-Rzońca K, Słaby K. Inhalation Exposure to Gaseous and Particulate Bound Mercury Present in the Ambient Air over the Polluted Area of Southern Poland. Int J Environ Res Public Health 2020; 17:ijerph17144999. [PMID: 32664556 PMCID: PMC7399863 DOI: 10.3390/ijerph17144999] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/26/2020] [Accepted: 07/07/2020] [Indexed: 11/16/2022]
Abstract
This study concerns the concentrations of gaseous and particle-bound mercury present in ambient air of two Polish sites, differing in terms of emission structure, and the estimation of inhalation risks related to those Hg species. The measurements of total gaseous mercury (TGM) and PM2.5-bound mercury (PBM) were performed at an urban station in Zabrze and a rural station in Złoty Potok, in 2014–2015. Both sites are located in Silesia, considered one of the European air pollution hot-spots. TGM was measured on-line (Tekran 2537). PM2.5 samples were taken with the use of low volume samplers. Hg contents in PM were determined by the CVAAS method following thermal decomposition. The median concentrations of TGM and PBM in Zabrze were 2.48 ng m−3 and 37.87 pg m−3, respectively; meanwhile in Zloty Potok, these were 1.69 ng m−3 and 27.82 pg m−3, respectively. Clearly, seasonal variability of TGM and PBM concentrations were observed, reflecting the importance of Hg and PM emissions from coal combustion for power and heating purposes. Health risk assessment was performed using a deterministic approach by the most conservative exposure scenario. The obtained HQ ratios and the cumulative HI indexes were below the limit value (<1). This means an unlikely health hazard due mercury inhalation.
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Anagnostaki E, Mylona V, Parker S, Lynch E, Grootveld M. Systematic Review on the Role of Lasers in Endodontic Therapy: Valuable Adjunct Treatment? Dent J (Basel) 2020; 8:E63. [PMID: 32630217 DOI: 10.3390/dj8030063] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/19/2020] [Accepted: 06/28/2020] [Indexed: 12/16/2022] Open
Abstract
(1) Background: Adjunctive instruments, such as lasers have been investigated to address the risk of failure of endodontic therapy due to the complexity of the root canal system. Lasers have been used therapeutically, in direct irradiation of the root canals or adjunct to irrigants placed into the canals, in combination with a photosensitizer (antimicrobial photodynamic therapy) and in pain management (photobiomodulation). The purpose of this systematic review was to evaluate the evidence in clinical use within these three areas of therapy. (2) Methods: PubMed, Cochrane and Scopus search engines were used to identify human clinical trials regarding the use of lasers in endodontic therapy. (3) Results: After applying the keywords and additional filters, inclusion and exclusion criteria, the initial number of 1486 articles was reduced to 17. It was revealed that almost all studies (14/17) presented a statistically significant improved outcome in laser-assisted endodontic therapy, with the remaining three not showing any adverse effects. (4) Conclusions: The use of laser photonic energy of appropriate delivered parameters can be proposed as useful adjunctive when considering optimal treatment modalities in orthograde endodontics. Additionally, a tendency of research towards pain modulation in this field is developing.
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Chen H, Wang Y, Tu W, Wang H, Yin H, Sha H, Li Y. Effects of photobiomodulation combined with MSCs transplantation on the repair of spinal cord injury in rat. J Cell Physiol 2020; 236:921-930. [PMID: 32583437 DOI: 10.1002/jcp.29902] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 06/14/2020] [Accepted: 06/14/2020] [Indexed: 12/26/2022]
Abstract
Stem cell transplantation has shown promising regenerative effects against neural injury, and photobiomodulation (PBM) can aid tissue recovery. This study aims to evaluate the therapeutic effect of human umbilical cord mesenchymal stem cells (hUCMSCs) and laser alone or combined on spinal cord injury (SCI). The animals were divided into SCI, hUCMSCs, laser treatment (LASER) and combination treatment (hUCMSCs + LASER) groups. Cell-enriched grafts of hUCMSCs (1 × 106 cells/ml) were injected at the site of antecedent trauma in SCI model rats. A 2 cm2 damaged area was irradiated with 630 nm laser at 100 mW/cm2 power for 20 min. Locomotion was evaluated using Basso-Beattie-Bresnahan (BBB) scores, and neurofilament repair were monitored by histological staining and diffusion tensor imaging (DTI). First, after SCI, the motor function of each group was restored with different degrees, the combination treatment significantly increased the BBB scores compared to either monotherapy. In addition, Nissl bodies were more numerous, and the nerve fibers were longer and thicker in the combination treatment group. Consistent with this, the in situ expression of NF-200 and glial fibrillary acidic protein in the damaged area was the highest in the combination treatment group. Finally, DTI showed that the combination therapy optimally improved neurofilament structure and arrangement. These results may show that the combination of PBM and hUCMSCs transplantation is a feasible strategy for reducing secondary damage and promoting functional recovery following SCI.
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Affiliation(s)
- Hongli Chen
- School of Life Sciences, Tiangong University, Tianjin, China.,Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Yunhao Wang
- School of Life Sciences, Tiangong University, Tianjin, China
| | - Wenjun Tu
- School of Life Sciences, Tiangong University, Tianjin, China.,Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Hong Wang
- School of Life Sciences, Tiangong University, Tianjin, China.,Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Huijuan Yin
- Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Hong Sha
- Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Yingxin Li
- Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
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Feng J, Li X, Zhu S, Xie Y, Du J, Ge H, Bai Y, Liu Y, Guo L. Photobiomodulation with 808-nm diode laser enhances gingival wound healing by promoting migration of human gingival mesenchymal stem cells via ROS/JNK/NF-κB/MMP-1 pathway. Lasers Med Sci 2020; 35:1831-1839. [PMID: 32451640 DOI: 10.1007/s10103-020-03040-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 05/17/2020] [Indexed: 12/15/2022]
Abstract
Photobiomodulation (PBM) has been shown to improve wound healing by promoting mesenchymal stem cell migration and proliferation. However, it remains unknown whether an 808-nm diode laser can influence human gingival mesenchymal stem cells (HGMSCs), and which dose this works well. In the present study, it was found that PBM could promote the migration of HGMSCs but not the proliferation. Furthermore, PBM could activate mitochondrial ROS, which could elevate the phosphorylation levels of JNK and IKB in HGMSCs, and further activate NF-κB as the nuclear translocation of p65 is elevated. Taken together, these present results indicate that PBM might promote cell migration via the ROS/JNK/NF-κB pathway.
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Affiliation(s)
- Jie Feng
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Xiaoyan Li
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Siying Zhu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Yongmei Xie
- Department of General, School of Stomatology, Capital Medical University, Beijing, China
| | - Juan Du
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Huabing Ge
- Department of General, School of Stomatology, Capital Medical University, Beijing, China
| | - Yuxing Bai
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Yi Liu
- Laboratory of Tissue Regeneration and Immunology and Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, China
| | - Lijia Guo
- Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China.
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Matys J, Flieger R, Gedrange T, Janowicz K, Kempisty B, Grzech-Leśniak K, Dominiak M. Effect of 808 nm Semiconductor Laser on the Stability of Orthodontic Micro-Implants: A Split-Mouth Study. Materials (Basel) 2020; 13:E2265. [PMID: 32423127 PMCID: PMC7287787 DOI: 10.3390/ma13102265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/03/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND To evaluate the effect of photobiomodulation (PBM) on orthodontic micro-implants (n = 44; 14 women, 8 men). METHODS PBM with 808 nm diode laser was applied immediately, 3, 6, 9, 12, 15, and 30 days post the implantation. Results were assessed within same time frames and additionally after 60 days to check for implants stability using the Periotest device. Patients pain experiences following the first day post-treatment and potential loss of micro-implants after 60 days were recorded. The procedure involved insertion of mini-implants in the maxilla for the laser group (L, n = 22) and negative control group (C, n = 22). Irradiation was carried buccally and palatally with respect to the maxillary ridge (2 points). The energy per point was 4 J (8 J/cm2), total dose was 56 J. RESULTS Patients did not report significant differences in terms of pain experiences comparing the L and C groups (p = 0.499). At 30 days post-treatment, higher secondary stability of implants was observed in the laser group (Periotest Test Value, PTV 6.32 ± 3.62), in contrast to the controls (PTV 11.34 ± 5.76) (p = 0.004). At 60 days post-treatment, significantly higher stability was recorded in the laser group (PTV 6.55 ± 4.66) compared with the controls, PTV (10.95 ± 4.77) (p = 0.009). Conclusions: Application of the 808 nm diode laser increased secondary micro-implant stability.
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Affiliation(s)
- Jacek Matys
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland;
| | | | - Tomasz Gedrange
- Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (T.G.); (M.D.)
- Department of Orthodontics, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Krzysztof Janowicz
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (K.J.); (B.K.)
- Department of Histology and Embryology, Poznań University of Medical Sciences, 60-781 Poznań, Poland
| | - Bartosz Kempisty
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (K.J.); (B.K.)
- Department of Histology and Embryology, Poznań University of Medical Sciences, 60-781 Poznań, Poland
- Department of Obstetrics and Gynaecology, University Hospital and Masaryk University, 602 00 Brno, Czech Republic
- Department of Veterinary Surgery, Institute of Veterinary Medicine, Nicolaus Copernicus University, 87-100 Toruń, Poland
| | - Kinga Grzech-Leśniak
- Laser Laboratory at Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland;
| | - Marzena Dominiak
- Dental Surgery Department, Medical University of Wroclaw, 50-425 Wrocław, Poland; (T.G.); (M.D.)
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Ambrosini G, Vorontsov I, Penzar D, Groux R, Fornes O, Nikolaeva DD, Ballester B, Grau J, Grosse I, Makeev V, Kulakovskiy I, Bucher P. Insights gained from a comprehensive all-against-all transcription factor binding motif benchmarking study. Genome Biol 2020; 21:114. [PMID: 32393327 PMCID: PMC7212583 DOI: 10.1186/s13059-020-01996-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 03/11/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Positional weight matrix (PWM) is a de facto standard model to describe transcription factor (TF) DNA binding specificities. PWMs inferred from in vivo or in vitro data are stored in many databases and used in a plethora of biological applications. This calls for comprehensive benchmarking of public PWM models with large experimental reference sets. RESULTS Here we report results from all-against-all benchmarking of PWM models for DNA binding sites of human TFs on a large compilation of in vitro (HT-SELEX, PBM) and in vivo (ChIP-seq) binding data. We observe that the best performing PWM for a given TF often belongs to another TF, usually from the same family. Occasionally, binding specificity is correlated with the structural class of the DNA binding domain, indicated by good cross-family performance measures. Benchmarking-based selection of family-representative motifs is more effective than motif clustering-based approaches. Overall, there is good agreement between in vitro and in vivo performance measures. However, for some in vivo experiments, the best performing PWM is assigned to an unrelated TF, indicating a binding mode involving protein-protein cooperativity. CONCLUSIONS In an all-against-all setting, we compute more than 18 million performance measure values for different PWM-experiment combinations and offer these results as a public resource to the research community. The benchmarking protocols are provided via a web interface and as docker images. The methods and results from this study may help others make better use of public TF specificity models, as well as public TF binding data sets.
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Affiliation(s)
- Giovanna Ambrosini
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
- Swiss Institute of Bioinformatics (SIB), CH-1015, Lausanne, Switzerland
| | - Ilya Vorontsov
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina 3, Moscow, Russia, 119991
- Institute of Protein Research, Russian Academy of Sciences, Institutskaya 4, Pushchino, Russia, 142290
| | - Dmitry Penzar
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina 3, Moscow, Russia, 119991
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Leninskiye gory 1-73, Moscow, Russia, 119234
- Moscow Institute of Physics and Technology (State University), Institutskiy per. 9, Dolgoprudny, Russia, 141700
| | - Romain Groux
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
- Swiss Institute of Bioinformatics (SIB), CH-1015, Lausanne, Switzerland
| | - Oriol Fornes
- Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC V5Z 4H4, Canada
| | - Daria D Nikolaeva
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Leninskiye gory 1-73, Moscow, Russia, 119234
| | | | - Jan Grau
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ivo Grosse
- Institute of Computer Science, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Vsevolod Makeev
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina 3, Moscow, Russia, 119991
- Moscow Institute of Physics and Technology (State University), Institutskiy per. 9, Dolgoprudny, Russia, 141700
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, Moscow, Russia, 119991
| | - Ivan Kulakovskiy
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina 3, Moscow, Russia, 119991
- Institute of Protein Research, Russian Academy of Sciences, Institutskaya 4, Pushchino, Russia, 142290
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilova 32, Moscow, Russia, 119991
| | - Philipp Bucher
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
- Swiss Institute of Bioinformatics (SIB), CH-1015, Lausanne, Switzerland.
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Abstract
OBJECTIVE: To review the development and implementation of prescription formularies by managed care organizations, identify their current applications, and recognize future trends in the managed care pharmacy environment. DATA SOURCES: Current journal articles and texts regarding the use of formularies and the managed care environment. DATA SYNTHESIS: Not applicable. CONCLUSION: Formulary systems have proven to be a valuable means to control the pharmacy benefit and can be expected to expand in both scope and sophistication.
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Vergara VM, Salman M, Abrol A, Espinoza FA, Calhoun VD. Determining the number of states in dynamic functional connectivity using cluster validity indexes. J Neurosci Methods 2020; 337:108651. [PMID: 32109439 DOI: 10.1016/j.jneumeth.2020.108651] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 02/01/2020] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Clustering analysis is employed in brain dynamic functional connectivity (dFC) to cluster the data into a set of dynamic states. These states correspond to different patterns of functional connectivity that iterate through time. Although several cluster validity index (CVI) methods to determine the best clustering partition exists, the appropriateness of methods to apply in the case of dynamic connectivity analysis has not been determined. NEW METHOD Currently employed indexes do not provide a crisp answer on what is the best number of clusters. In addition, there is a lack of CVI testing in the context of dFC data. This work tests a comprehensive set of twenty four cluster validity indexes applied to addiction data and suggest the best ones for clustering dynamic functional connectivity. RESULTS Out of the twenty four considered CVIs, Davies-Bouldin and Ray-Turi were the most suitable methods to find the number of clusters in both simulation and real data. The solution for these two CVIs is to find a local minimum critical point, which can be automated using computational algorithms. COMPARISON WITH EXISTING METHODS Elbow-Criterion, Silhouette and GAP-Statistic methods have been widely used in dFC studies. These methods are included among the tested CVIs where the performances of all twenty four CVIs are compared. CONCLUSIONS Davies-Bouldin and Ray-Turi CVIs showed better performance among a group of twenty four CVIs in determining the number of clusters to use in dFC analysis.
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Affiliation(s)
- Victor M Vergara
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA; The Mind Research Network and Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM, USA.
| | - Mustafa Salman
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA; School of Electrical & Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
| | - Anees Abrol
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA.
| | - Flor A Espinoza
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA; The Mind Research Network and Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM, USA.
| | - Vince D Calhoun
- Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, USA; The Mind Research Network and Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM, USA; School of Electrical & Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
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50
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Surbek D, Vial Y, Girard T, Breymann C, Bencaiova GA, Baud D, Hornung R, Taleghani BM, Hösli I. Patient blood management ( PBM) in pregnancy and childbirth: literature review and expert opinion. Arch Gynecol Obstet 2020; 301:627-641. [PMID: 31728665 PMCID: PMC7033066 DOI: 10.1007/s00404-019-05374-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/31/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE Patient blood management [PBM] has been acknowledged and successfully introduced in a wide range of medical specialities, where blood transfusions are an important issue, including anaesthesiology, orthopaedic surgery, cardiac surgery, or traumatology. Although pregnancy and obstetrics have been recognized as a major field of potential haemorrhage and necessity of blood transfusions, there is still little awareness among obstetricians regarding the importance of PBM in this area. This review, therefore, summarizes the importance of PBM in obstetrics and the current evidence on this topic. METHOD We review the current literature and summarize the current evidence of PBM in pregnant women and postpartum with a focus on postpartum haemorrhage (PPH) using PubMed as literature source. The literature was reviewed and analysed and conclusions were made by the Swiss PBM in obstetrics working group of experts in a consensus meeting. RESULTS PBM comprises a series of measures to maintain an adequate haemoglobin level, improve haemostasis and reduce bleeding, aiming to improve patient outcomes. Despite the fact that the WHO has recommended PBM early 2010, the majority of hospitals are in need of guidelines to apply PBM in daily practice. PBM demonstrated a reduction in morbidity, mortality, and costs for patients undergoing surgery or medical interventions with a high bleeding potential. All pregnant women have a significant risk for PPH. Risk factors do exist; however, 60% of women who experience PPH do not have a pre-existing risk factor. Patient blood management in obstetrics must, therefore, not only be focused on women with identified risk factor for PPH, but on all pregnant women. Due to the risk of PPH, which is inherent to every pregnancy, PBM is of particular importance in obstetrics. Although so far, there is no clear guideline how to implement PBM in obstetrics, there are some simple, effective measures to reduce anaemia and the necessity of transfusions in women giving birth and thereby improving clinical outcome and avoiding complications. CONCLUSION PBM in obstetrics is based on three main pillars: diagnostic and/or therapeutic interventions during pregnancy, during delivery and in the postpartum phase. These three main pillars should be kept in mind by all professionals taking care of pregnant women, including obstetricians, general practitioners, midwifes, and anaesthesiologists, to improve pregnancy outcome and optimize resources.
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Affiliation(s)
- Daniel Surbek
- Department of Obstetrics and Gynaecology, Bern University Hospital, Insel Hospital, University of Bern, Friedbühlstrasse 19, 3010, Bern, Switzerland.
| | - Yvan Vial
- Service of Obstetrics, Department Woman-Mother-Child, University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Thierry Girard
- Department of Anaesthesiology, University Hospital Basel, Basel, Switzerland
| | - Christian Breymann
- Obstetric Research-Feto Maternal Haematology Unit, University Hospital Zurich, Zurich, Switzerland
| | | | - David Baud
- Service of Obstetrics, Department Woman-Mother-Child, University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - René Hornung
- Department of Obstetrics and Gynaecology, St. Gallen Cantonal Hospital, St. Gallen, Switzerland
| | | | - Irene Hösli
- Clinic of Obstetrics and Gynaecology, University Hospital Basel, Basel, Switzerland
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