1
|
Shirota Y, Otani T, Wasada S, Ito S, Mieda T, Nakamura K. Inner and outer penetrating spinal cord injuries lead to distinct overground walking in mice. IBRO Neurosci Rep 2024; 16:345-352. [PMID: 38415183 PMCID: PMC10897851 DOI: 10.1016/j.ibneur.2024.02.005] [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: 09/15/2023] [Revised: 12/15/2023] [Accepted: 02/12/2024] [Indexed: 02/29/2024] Open
Abstract
Spinal cord injury (SCI) is a devastating mechanical trauma. Although locomotion of model animals that mimic contusion SCI was actively examined, locomotion after penetrating SCI caused by sharp objects was not extensively studied. Severity of walking difficulty after partial transection of the spinal cord including penetrating SCI likely depends on the regions affected. Therefore, we compared beam walking and overground walking between mice after penetrating SCI at inner spinal cord region and mice with the injury at the outer region. Mice with the both penetrating SCIs did not display changes in beam walking. When appearance and movements of hindlimbs during overground walking was rated using Basso Mouse Scale for locomotion (BMS), however, mice with inner penetrating SCI showed low score shortly after the SCI. However, the score became high at later time points, as seen in contusion SCI mice. By contrast, BMS score did not decrease shortly after the outer penetrating SCI. However, the score became low 3 weeks after the SCI. As quantitative values during overground walking, movement duration in an open field were shorter at 1 day after the two penetrating SCIs. However, slower moving speed and fewer number of movement at 1 day were specific to mice with inner and outer penetrating SCIs, respectively. Moreover, BMS score was correlated with walking distance in open field only in mice with inner penetrating SCI. Thus, inner and outer penetrating SCI cause difficulty in overground walking with different severity and progress.
Collapse
Affiliation(s)
- Yuma Shirota
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Taketo Otani
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Sayo Wasada
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Shunsuke Ito
- Department of Orthopedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
- Department of Orthopaedic Surgery, Isesaki Municipal Hospital, 12-1 Tsunatori Honmachi, Isesaki, Gunma 372-0817, Japan
| | - Tokue Mieda
- Department of Orthopedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
| | - Kazuhiro Nakamura
- Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, 3-39-22, Showa-machi, Maebashi, Gunma 371-8511, Japan
| |
Collapse
|
2
|
Paz-Alvarez M, Fung Tang C, Pudney PD, Lane ME. Rational development of topical climbazole formulations. Int J Pharm 2024; 653:123886. [PMID: 38331330 DOI: 10.1016/j.ijpharm.2024.123886] [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: 12/14/2023] [Revised: 02/03/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
Dandruff, or pityriasis capitis simplex, is a common scalp condition associated with excessive flaking and scaling of the epidermal tissue. Other features include irregular corneocyte turnover, irritation, itching and an impaired skin barrier function. Previously we reported the characterization of climbazole (CBZ), an antifungal agent used in the management of dandruff. Skin permeation of CBZ from neat solvents was also investigated. In the present work we evaluated CBZ permeation in human skin in vitro from more complex formulations that better represent products used by consumers. The various systems studied were composed of propylene glycol (PG), Transcutol®P (TC), octyl salicylate (OSal) and isopropyl alcohol (IPA). As well as measurement of skin uptake and penetration of CBZ, where possible, the skin retention and permeation of the various solvents was also determined. All vehicles promoted skin permeation of CBZ but no significant differences in amount permeated were evident between the binary vehicles (PG:TC, TC:OSal) and the ternary vehicle studied (PG:IPA:OSal). The binary vehicles generally promoted more skin uptake of CBZ compared with the neat solvents (PG, TC, OSal) studied previously. Permeation and skin extraction of CBZ from the PG:TC vehicles increased with increasing PG content; a similar trend was evident for the PG:IPA:OSal systems. New methods were developed and validated for measurement of PG, TC and OSal. Analysis of the individual solvents indicated that PG permeation was also independent of the amounts of other solvents in the binary or ternary systems. Consistent with previous findings higher proportions of TC permeated compared with PG for the PG:TC binary systems; TC also permeated the skin more rapidly than PG from these vehicles. For OSal, skin extraction was generally higher for TC:OSal compared with the PG:IPA:OSal vehicle. However, increasing the content of OSal did not appear to influence CBZ skin uptake nor permeation. Interestingly, the effects of the various PG:TC vehicles on CBZ skin delivery contrast with results we previous reported for the same systems for a different active. This confirms that with reference to skin permeation, formulation effects and/or skin penetration enhancement should be expected to vary and may not be predicted for specific vehicles.
Collapse
Affiliation(s)
| | - Chun Fung Tang
- UCL School of Pharmacy, 29-39 Brunswick Square WC1N 1AX, London, UK
| | - Paul D Pudney
- Strategic Science Group, Unilever R&D, Colworth Science Park MK44 1LQ, Sharnbrook, Bedford, UK
| | - Majella E Lane
- UCL School of Pharmacy, 29-39 Brunswick Square WC1N 1AX, London, UK
| |
Collapse
|
3
|
Zou J, Peng B, Fan N, Liu Y. Simulation and experimental study on the influence of lamina on nanoneedle penetration into the cell nucleus. Biomech Model Mechanobiol 2024:10.1007/s10237-024-01836-4. [PMID: 38526703 DOI: 10.1007/s10237-024-01836-4] [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: 10/10/2023] [Accepted: 02/21/2024] [Indexed: 03/27/2024]
Abstract
We have developed a finite element model to simulate the penetration of nanoneedles into the cellular nucleus. It is found that the nuclear lamina, the primary supporting structure of the nuclear membrane, plays a crucial role in maintaining the integrity of the nuclear envelope and enhancing stress concentration in the nuclear membrane. Notably, nuclear lamina A exhibits a more pronounced effect compared to nuclear lamina B. Subsequently, we further conducted experiments by controlling the time of osteopontin (OPN) treatment to modify the nuclear lamina density, and the results showed that an increase in nuclear lamina density enhances the probability of nanoneedle penetration into the nuclear membrane. Through employing both simulation and experimental techniques, we have gathered compelling evidence indicating that an augmented density of nuclear lamina A can enhance the penetration of nanoneedles into the nuclear membrane.
Collapse
Affiliation(s)
- Jie Zou
- School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Bei Peng
- School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Na Fan
- School of Mechatronics Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China.
| | - Yang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.
| |
Collapse
|
4
|
Girasol CE, Moraes JMAF, Bachmann L, Alfredo DMN, Barbosa RI, de Oliveira Guirro EC, de Jesus Guirro RR. In vivo attenuation profile of 660 nm and 830 nm wavelengths on human elbow skin and calcaneus tendon of different phototypes. Lasers Med Sci 2024; 39:24. [PMID: 38194210 DOI: 10.1007/s10103-023-03955-3] [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: 06/10/2021] [Accepted: 12/11/2023] [Indexed: 01/10/2024]
Abstract
Physical factors and tissue characteristics determine the transmission of light through tissues. One of the significant clinical limitations of photobiomodulation is the quantification of fluence delivered at application sites and optical penetration depth in vivo. There is also the difficulty of determining the distances of the application points to cover a uniformly irradiated area. Thus, the aim was to evaluate in vivo the influence of melanin on light transmission of the 660 nm and 830 nm laser wavelengths on skin and tendon. Thirty young individuals of both sexes were recruited, divided into two groups based on melanin index, and submitted to photobiomodulation protocols in the posterior region of the elbow (skin-skin) and the calcaneus tendon (skin-tendon-skin). The irradiation area was evaluated using a homemade linear array of five sensors. We found significant transmission power values for different melanin indexes and wavelengths (p<0.0001). Also, different equipment can generate significant differences in the transmitted power at an 830-nm wavelength. Average scattering values are 14 mm and 21 mm for 660 nm, in higher and lower melanin index, respectively. For 830 nm, values of 20 mm and 26 mm are indicated. Laser light transmission in vivo tissues is related to wavelength, beam diameter, tissue thickness, and composition, as well as melanin index. The 830-nm laser presents higher light transmission on the skin than 660 nm. The distances between the application points can be different, with higher values for 830 nm than 660 nm.
Collapse
Affiliation(s)
- Carlos Eduardo Girasol
- Postgraduate Program in Rehabilitation and Functional Performance, Department of Health Sciences, Ribeirão Preto Medical School of the University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | | | - Luciano Bachmann
- Postgraduate Program in Physics Applied to Medicine and Biology, University of São Paulo (USP), Ribeirão Preto, Brazil
| | - Damião Miranda Ngonga Alfredo
- Postgraduate Program in Rehabilitation and Functional Performance, Department of Health Sciences, Ribeirão Preto Medical School of the University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
- School of Health Sciences and Sports, Methodist University of Angola (UMA), Luanda, Angola
| | - Rafael Inácio Barbosa
- Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (UFSC), Araranguá, Brazil
| | - Elaine Caldeira de Oliveira Guirro
- Postgraduate Program in Rehabilitation and Functional Performance, Department of Health Sciences, Ribeirão Preto Medical School of the University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Rinaldo Roberto de Jesus Guirro
- Postgraduate Program in Rehabilitation and Functional Performance, Department of Health Sciences, Ribeirão Preto Medical School of the University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil.
| |
Collapse
|
5
|
Jiang G, Guo J, Yan C, He Y, Chen J, Zhang M, Xiang K, Xiang X, Zhang C, Wang Y, Liu S, Nie P, Jiang T, Kang Y, Wang C, Xu X, Yang X, Chen Z. Biomimetic hybrid nanovesicles improve infected diabetic wound via enhanced targeted delivery. J Control Release 2024; 365:193-207. [PMID: 37956924 DOI: 10.1016/j.jconrel.2023.11.019] [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: 06/23/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023]
Abstract
Infected diabetic wounds have been raising the global medical burden because of its high occurrence and resulting risk of amputation. Impaired endothelium has been well-documented as one of the most critical reasons for unhealed wounds. Recently, endothelial cell-derived nanovesicles (NVs) were reported to facilitate angiogenesis, whereas their efficacy is limited in infected diabetic wounds because of the complex niche. In this study, extrusion-derived endothelial NVs were manufactured and then hybridized with rhamnolipid liposomes to obtain biomimetic hybrid nanovesicles (HNVs). The HNVs were biocompatible and achieved endothelium-targeted delivery through membrane CXCR4-mediated homologous homing. More importantly, the HNVs exhibited better penetration and antibacterial activity compared with NVs, which further promote the intrinsic endothelium targeting in infected diabetic wounds. Therefore, the present research has established a novel bioactive delivery system-HNV with enhanced targeting, penetration, and antibacterial activity-which might be an encouraging strategy for infected diabetic wound treatment.
Collapse
Affiliation(s)
- Guoyong Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiahe Guo
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chengqi Yan
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yingjie He
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Jing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Maojie Zhang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kaituo Xiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xuejiao Xiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Chi Zhang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yufeng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shuoyuan Liu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Pengjuan Nie
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Tao Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yu Kang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Cheng Wang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiang Xu
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| |
Collapse
|
6
|
Kühne R, Hilscherová K, Smutna M, Leßmöllmann F, Schüürmann G. In silico bioavailability triggers applied to direct and indirect thyroid hormone disruptors. Chemosphere 2024; 348:140611. [PMID: 37972869 DOI: 10.1016/j.chemosphere.2023.140611] [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] [Received: 07/06/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
Among endocrine disruption, interference with the thyroid hormone (TH) regulation is of increasing concern. Respective compounds encode through their structural features both the potential for TH disruption, and the bioavailability mitigating the toxicological effect. The aim of this study is to provide a substructure-based screening-level QSAR (quantitative structure-activity relationship) that discriminates bioavailable TH disruptors from not bioavailable counterparts, covering both direct and indirect (retinoid- and AhR-mediated) modes of action. The QSAR has been derived from literature data for 1642 compounds, and takes into account Lipinski's rule-of-five and the brain/blood partition coefficient Kbrain/blood. For its validation, an external test set of 145 substances has been used. For 1787 compounds meeting the model application domain, the model yields only one false negative. The discussion addresses the mechanistic meaning of the bioavailability triggers molecular weight, H-bond donor and acceptor, hydrophobicity (log Kow), and the physicochemical properties underlying log Kbrain/blood. The model may serve as bioavailability-screening step within a decision support system for the predictive assessment of chemicals regarding their potential to disrupt thyroid hormone function in a direct or indirect manner.
Collapse
Affiliation(s)
- Ralph Kühne
- UFZ Department of Ecological Chemistry, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318, Leipzig, Germany.
| | - Klára Hilscherová
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, 61137, Brno, Czech Republic.
| | - Marie Smutna
- RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, 61137, Brno, Czech Republic.
| | - Friederike Leßmöllmann
- UFZ Department of Ecological Chemistry, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318, Leipzig, Germany; Institute of Organic Chemistry, Technical University Bergakademie Freiberg, Leipziger Str. 29, 09596, Freiberg, Germany.
| | - Gerrit Schüürmann
- UFZ Department of Ecological Chemistry, Helmholtz Centre for Environmental Research, Permoserstr. 15, 04318, Leipzig, Germany; Institute of Organic Chemistry, Technical University Bergakademie Freiberg, Leipziger Str. 29, 09596, Freiberg, Germany.
| |
Collapse
|
7
|
Hudák M, Koščo M, Rašiová M. Successful endovascular retrieval of an inferior vena cava filter penetrating into aorta. J Cardiol Cases 2023; 28:239-241. [PMID: 38126054 PMCID: PMC10730273 DOI: 10.1016/j.jccase.2023.08.001] [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: 05/11/2023] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 12/23/2023] Open
Abstract
The inferior vena cava (IVC) filter is an approved and effective device for prevention of pulmonary embolism. Despite declared effectiveness in prevention of pulmonary embolism, certain IVC filter-related complications have been described. This case report deals with successful endovascular retrieval of an IVC filter penetrating into the aorta. Learning objective The use of inferior vena cava (IVC) filters has been associated with controversy in recent years, largely owing to concerns about the overuse. The perforation of IVC wall and further penetration of IVC filter struts into surrounding tissues belong to the most severe complication. The purpose of this report is to highlight potential severe complications associated with the use of IVC filter and to present the reader how the IVC filter-related complications can be successfully managed by endovascular treatment.
Collapse
Affiliation(s)
- Marek Hudák
- Corresponding author at: VÚSCH, a.s., Ondavská 8, 040 11 Košice, Slovakia.
| | - Martin Koščo
- East Slovak Institute of Cardiovascular Diseases, a. s., Košice, Slovakia
- Pavol Jozef Šafárik University, Košice, Slovakia
| | - Mária Rašiová
- East Slovak Institute of Cardiovascular Diseases, a. s., Košice, Slovakia
- Pavol Jozef Šafárik University, Košice, Slovakia
| |
Collapse
|
8
|
Selcen Kilinc-Balci F, Kahveci Z, Yorio PL. Impact of surface tension on the barrier performance of gowns and coveralls. Am J Infect Control 2023; 51:1392-1400. [PMID: 37121474 PMCID: PMC10680362 DOI: 10.1016/j.ajic.2023.04.171] [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] [Received: 02/23/2023] [Revised: 04/19/2023] [Accepted: 04/21/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND Health care workers and laboratory workers who are routinely exposed to potentially life-threatening infectious diseases should wear protective clothing when anticipating contact with infectious materials. The most critical property of protective clothing is its ability to prevent liquids and viruses from passing through the garment. There are a number of potentially infectious liquids that workers may be exposed to during routine tasks. Each liquid has different physical and chemical properties that affect penetration. However, the current test methods use a limited number of liquids for classifying the barrier performance. The impact of the surface tension of the challenge liquid on the penetration resistance of gowns and coveralls was investigated in this study. METHODS Eight isolation gowns and 2 coveralls were tested in accordance with American Association of Textile Chemists and Colorists 42 and American Association of Textile Chemists and Colorists 127 test methods, which were modified to incorporate the substitute challenge liquids. RESULTS Although current standard test methods only use water to categorize the liquid penetration resistance of minimal to moderate barrier performance gowns, a significant difference in the penetration was found when simulated body fluids were used. CONCLUSIONS The results suggest that safety professionals and wearers should consider the varying barrier performance of personal protective equipment with different liquids and the use limitations when selecting them for the required tasks. Furthermore, standard development organizations should consider multiple challenge liquids when classifying protective clothing for health care settings.
Collapse
Affiliation(s)
- F Selcen Kilinc-Balci
- US Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, Pittsburgh, PA.
| | - Zafer Kahveci
- US Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, National Personal Protective Technology Laboratory, Pittsburgh, PA
| | - Patrick L Yorio
- US Centers for Disease Control and Prevention, Office of the Director (OD), Human Resources Office (HRO), Office of the Chief Operating Officer (OCOO), Atlanta, GA
| |
Collapse
|
9
|
Wang T, Chen G, Zhang S, Li D, Wei G, Zhao X, Liu Y, Ding D, Zhang X. Steerable Microneedles Enabling Deep Delivery of Photosensitizers and CRISPR/Cas9 Systems for Effective Combination Cancer Therapy. Nano Lett 2023; 23:7990-7999. [PMID: 37595030 DOI: 10.1021/acs.nanolett.3c01914] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Abstract
Although gene therapy has shown prospects in treating triple-negative breast cancer, it is insufficient to treat such a malignant tumor. Herein, nanoparticles (NPs)-embedded dissolving microneedles (IR780-PL/pFBXO44@MNs) with steerable and flectional property were developed to achieve the codelivery of FBXO44-targeted CRISPR/Cas9 plasmids (pFBXO44) and hydrophobic photosensitizers. For improved NP penetration in tumor tissue, collagenase@MNs were preapplied to degrade the tumor matrix. Under light irradiation, IR780 exhibited remarkable phototherapy, while the escape efficiency of NPs from lysosomes was improved. pFBXO44 was subsequently released in tumor cell cytoplasm via reducing the disulfide bonds of NPs, which could specifically knock out the FBXO44 gene to inhibit the migration and invasion of tumor cells. As a result, tumor cells were eradicated, and lung metastasis was effectively suppressed. This micelle-incorporated microneedle platform broadens the potential of combining gene editing and photo synergistic cancer therapy.
Collapse
Affiliation(s)
- Tong Wang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Gang Chen
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Shuangshuang Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Dazhao Li
- Department of Neurosurgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province 213003, China
| | - Guanjun Wei
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Xiaomei Zhao
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Yang Liu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Dawei Ding
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| | - Xuenong Zhang
- College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu Province 215123, China
| |
Collapse
|
10
|
Victory JH, Minc SD, Zaslau S, Elbakry AA, Almenoff MI. Open retrieval management of inferior vena cava filter erosion resulting in symptomatic hydroureteronephrosis. J Vasc Surg Cases Innov Tech 2023; 9:101188. [PMID: 37799839 PMCID: PMC10547826 DOI: 10.1016/j.jvscit.2023.101188] [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: 01/18/2023] [Accepted: 03/28/2023] [Indexed: 10/07/2023] Open
Abstract
Inferior vena cava filters are effective for the management of thromboembolic disease but can erode into adjacent organ systems in rare instances. Endovascular retrieval of eroded filters has been the preferred management for this complication. We present a case for which endovascular retrieval was not appropriate because of filter orientation and erosion into the ureter and describe successful management using open retrieval of a permanent filter with erosion into the renal collecting system requiring reconstruction. Although minimally invasive retrieval is preferred over open repair, this approach should be considered when filter erosion is not amenable to endovascular retrieval.
Collapse
Affiliation(s)
| | - Samantha D. Minc
- Division of Vascular Surgery, Department of Cardiovascular and Thoracic Surgery, WVU Heart and Vascular Institute, West Virginia University, Morgantown, WV
| | - Stanley Zaslau
- Department of Urology, School of Medicine, West Virginia University, Morgantown, WV
| | - Amr A. Elbakry
- Department of Urology, School of Medicine, West Virginia University, Morgantown, WV
| | - Maxwell Ian Almenoff
- Division of Vascular Surgery, Department of Cardiovascular and Thoracic Surgery, WVU Heart and Vascular Institute, West Virginia University, Morgantown, WV
| |
Collapse
|
11
|
Tian H, Ou J, Wang Y, Sun J, Gao J, Ye Y, Zhang R, Chen B, Wang F, Huang W, Li H, Liu L, Shao C, Xu Z, Peng F, Tu Y. Bladder microenvironment actuated proteomotors with ammonia amplification for enhanced cancer treatment. Acta Pharm Sin B 2023; 13:3862-3875. [PMID: 37719374 PMCID: PMC10501867 DOI: 10.1016/j.apsb.2023.02.016] [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: 11/28/2022] [Revised: 01/17/2023] [Accepted: 02/17/2023] [Indexed: 03/05/2023] Open
Abstract
Enzyme-driven micro/nanomotors consuming in situ chemical fuels have attracted lots of attention for biomedical applications. However, motor systems composed by organism-derived organics that maximize the therapeutic efficacy of enzymatic products remain challenging. Herein, swimming proteomotors based on biocompatible urease and human serum albumin are constructed for enhanced antitumor therapy via active motion and ammonia amplification. By decomposing urea into carbon dioxide and ammonia, the designed proteomotors are endowed with self-propulsive capability, which leads to improved internalization and enhanced penetration in vitro. As a glutamine synthetase inhibitor, the loaded l-methionine sulfoximine further prevents the conversion of toxic ammonia into non-toxic glutamine in both tumor and stromal cells, resulting in local ammonia amplification. After intravesical instillation, the proteomotors achieve longer bladder retention and thus significantly inhibit the growth of orthotopic bladder tumor in vivo without adverse effects. We envision that the as-developed swimming proteomotors with amplification of the product toxicity may be a potential platform for active cancer treatment.
Collapse
Affiliation(s)
- Hao Tian
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Juanfeng Ou
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yong Wang
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Jia Sun
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Junbin Gao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yicheng Ye
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ruotian Zhang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bin Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Fei Wang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Weichang Huang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Huaan Li
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Lu Liu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Chuxiao Shao
- Key Laboratory of Joint Diagnosis and Treatment of Chronic Liver Disease and Liver Cancer of Lishui, Central Laboratory of Lishui People's Hospital, The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - Zhili Xu
- Department of Ultrasound, Institute of Ultrasound in Musculoskeletal Sports Medicine, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Fei Peng
- School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yingfeng Tu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| |
Collapse
|
12
|
Wang X, Zhang H, Chen X, Wu C, Ding K, Sun G, Luo Y, Xiang D. Overcoming tumor microenvironment obstacles: Current approaches for boosting nanodrug delivery. Acta Biomater 2023; 166:42-68. [PMID: 37257574 DOI: 10.1016/j.actbio.2023.05.043] [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: 02/10/2023] [Revised: 05/12/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
In order to achieve targeted delivery of anticancer drugs, efficacy improvement, and side effect reduction, various types of nanoparticles are employed. However, their therapeutic effects are not ideal. This phenomenon is caused by tumor microenvironment abnormalities such as abnormal blood vessels, elevated interstitial fluid pressure, and dense extracellular matrix that affect nanoparticle penetration into the tumor's interstitium. Furthermore, nanoparticle properties including size, charge, and shape affect nanoparticle transport into tumors. This review comprehensively goes over the factors hindering nanoparticle penetration into tumors and describes methods for improving nanoparticle distribution by remodeling the tumor microenvironment and optimizing nanoparticle physicochemical properties. Finally, a critical analysis of future development of nanodrug delivery in oncology is further discussed. STATEMENT OF SIGNIFICANCE: This article reviews the factors that hinder the distribution of nanoparticles in tumors, and describes existing methods and approaches for improving the tumor accumulation from the aspects of remodeling the tumor microenvironment and optimizing the properties of nanoparticles. The description of the existing methods and approaches is followed by highlighting their advantages and disadvantages and put forward possible directions for the future researches. At last, the challenges of improving tumor accumulation in nanomedicines design were also discussed. This review will be of great interest to the broad readers who are committed to delivering nanomedicine for cancer treatment.
Collapse
Affiliation(s)
- Xiaohui Wang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Hong Zhang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China; Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong, 250033, China
| | - Xiaohui Chen
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Chunrong Wu
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Ke Ding
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China
| | - Guiyin Sun
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China.
| | - Yang Luo
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China.
| | - Debing Xiang
- Department of Oncology, Chongqing University Jiangjin Hospital, Chongqing 402260, China; Department of Oncology, Jiangjin Central Hospital of Chongqing, Chongqing 402260, China.
| |
Collapse
|
13
|
Wang J, Zhang T, Liao Y, Chen W, Liang S, Xu S, Fang H, Wang M, Zheng L, Gu Z, Zhang Z, Wang B, Bi Y, Feng W. 3D-imaging and quantitative assessment for size-related penetration of HfO 2 nanoparticles in breast cancer tumor by synchrotron radiation microcomputed tomography. Anal Chim Acta 2023; 1266:341352. [PMID: 37244662 DOI: 10.1016/j.aca.2023.341352] [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: 02/16/2023] [Revised: 04/22/2023] [Accepted: 05/09/2023] [Indexed: 05/29/2023]
Abstract
The development of quantitative analytical methods to assess the heterogeneous distribution and penetration of nanodrugs in solid tumors is of great importance for anticancer nanomedicine. Herein, Expectation-Maximization (EM) iterate algorithm and threshold segmentation methods were used to visualize and quantify the spatial distribution patterns, penetration depth and diffusion features of two-sized hafnium oxide nanoparticles (s-HfO2 NPs in 2 nm and l-HfO2 NPs in 50 nm sizes) in mouse models of breast cancer using synchrotron radiation micro-computed tomography (SR-μCT) imaging technique. The three-dimensional (3D) SR-μCT images were reconstructed based on the EM iterate algorithm thus clearly displayed the size-related penetration and distribution within the tumors after intra-tumoral injection of HfO2 NPs and X-ray irradiation treatment. The obtained 3D animations clearly show that a considerable amount of s-HfO2 and l-HfO2 NPs diffused into tumor tissues at 2 h post-injection and displayed the obvious increase in the tumor penetration and distribution area within the tumors at day 7 after combination with low-dose X-ray irradiation treatment. A thresholding segmentation for 3D SR-μCT image was developed to assess the penetration depth and quantity of HfO2 NPs along the injection sites in tumors. The developed 3D-imaging techniques revealed that the s-HfO2 NPs presented more homogeneous distribution pattern, diffused more quickly and penetrated more deeply within tumor tissues than the l-HfO2 NPs did. Whereas, the low-dose X-ray irradiation treatment greatly enhanced the wide distribution and deep penetration of both s-HfO2 and l-HfO2 NPs. This developed method may provide quantitative distribution and penetration information for the X-ray sensitive high-Z metal nanodrugs in the cancer imaging and therapy.
Collapse
Affiliation(s)
- Jiali Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Tingfeng Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - You Liao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shanshan Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Si Xu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China; CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Fang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Meng Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingna Zheng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiyong Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Bing Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yi Bi
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China.
| | - Weiyue Feng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
14
|
Proctor EK, Bunger AC, Lengnick-Hall R, Gerke DR, Martin JK, Phillips RJ, Swanson JC. Ten years of implementation outcomes research: a scoping review. Implement Sci 2023; 18:31. [PMID: 37491242 PMCID: PMC10367273 DOI: 10.1186/s13012-023-01286-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [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] [Received: 02/07/2023] [Accepted: 07/14/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND Proctor and colleagues' 2011 paper proposed a taxonomy of eight implementation outcomes and challenged the field to address a research agenda focused on conceptualization, measurement, and theory building. Ten years later, this paper maps the field's progress in implementation outcomes research. This scoping review describes how each implementation outcome has been studied, research designs and methods used, and the contexts and settings represented in the current literature. We also describe the role of implementation outcomes in relation to implementation strategies and other outcomes. METHODS Arksey and O'Malley's framework for conducting scoping reviews guided our methods. Using forward citation tracing, we identified all literature citing the 2011 paper. We conducted our search in the Web of Science (WOS) database and added citation alerts sent to the first author from the publisher for a 6-month period coinciding with the WOS citation search. This produced 1346 titles and abstracts. Initial abstract screening yielded 480 manuscripts, and full-text review yielded 400 manuscripts that met inclusion criteria (empirical assessment of at least one implementation outcome). RESULTS Slightly more than half (52.1%) of included manuscripts examined acceptability. Fidelity (39.3%), feasibility (38.6%), adoption (26.5%), and appropriateness (21.8%) were also commonly examined. Penetration (16.0%), sustainability (15.8%), and cost (7.8%) were less frequently examined. Thirty-two manuscripts examined implementation outcomes not included in the original taxonomy. Most studies took place in healthcare (45.8%) or behavioral health (22.5%) organizations. Two-thirds used observational designs. We found little evidence of progress in testing the relationships between implementation strategies and implementation outcomes, leaving us ill-prepared to know how to achieve implementation success. Moreover, few studies tested the impact of implementation outcomes on other important outcome types, such as service systems and improved individual or population health. CONCLUSIONS Our review presents a comprehensive snapshot of the research questions being addressed by existing implementation outcomes literature and reveals the need for rigorous, analytic research and tests of strategies for attaining implementation outcomes in the next 10 years of outcomes research.
Collapse
Affiliation(s)
- Enola K Proctor
- The Brown School, Shanti Khinduka Distinguished Professor Emerita, Washington University in St. Louis, St. Louis, USA.
| | - Alicia C Bunger
- College of Social Work, The Ohio State University, Columbus, OH, USA
| | | | - Donald R Gerke
- Department of Social Work, College of Arts and Sciences, University of Alabama at Birmingham, Birmingham, USA
| | - Jared K Martin
- College of Education & Human Ecology, The Ohio State University, Columbus, OH, USA
| | - Rebecca J Phillips
- College of Liberal Arts & Sciences, Western Oregon University, Monmouth, OR, USA
| | - Julia C Swanson
- Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA
| |
Collapse
|
15
|
Yang Y, Guo H. In situ imaging of the spatial and temporal penetration of organic pollutants into microplastics via surface-enhanced Raman spectroscopy. Environ Pollut 2023; 329:121712. [PMID: 37098368 DOI: 10.1016/j.envpol.2023.121712] [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: 02/20/2023] [Revised: 04/09/2023] [Accepted: 04/23/2023] [Indexed: 05/21/2023]
Abstract
Understanding the spatial and temporal penetration patterns of organic pollutants in microplastics (μP) is important for evaluating their environmental and biological impacts, such as the "Trojan Horse" effect. However, there is a lack of an effective method to monitor the penetration processes and patterns in situ. This study aimed to develop a simple and sensitive approach for in situ imaging of organic pollutant penetration into μP. The novel method was developed using surface-enhanced Raman spectroscopy (SERS) coupled with gold nanoparticles as nanoprobes that could sensitively detect organic pollutants in low-density polyethylene (LDPE) μP spatially and temporally. The detection limit of this SERS-based method was 0.36 and 0.02 ng/mm2 for ferbam (pesticide) and methylene blue (synthetic dye), respectively. The results showed that both ferbam and methylene blue could penetrate LDPE μP. The penetration depth and amount increased as the interaction time increased. Most of the absorbed organic pollutants accumulated within the top 90 μm layer of the tested μP. Compared to methylene blue, ferbam was more quickly absorbed and achieved higher accumulation in μP with a maximum of 32.57 ng/mm2 after 168 h interaction. This pioneering study clearly demonstrated that SERS mapping is a sensitive and in situ approach to visualize and quantify the penetration patterns of organic pollutants in μP. The new approach developed here can advance our understanding of μP as pollutant carriers and their influence on the environmental fate, behavior, and biological impacts of organic pollutants.
Collapse
Affiliation(s)
- Yishan Yang
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
| | - Huiyuan Guo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY, 13902, USA.
| |
Collapse
|
16
|
Gong P, Wang X, Xue Y, Zhang L, Wang Y. Foliar uptake of persistent organic pollutants at alpine treeline. J Hazard Mater 2023; 453:131388. [PMID: 37058936 DOI: 10.1016/j.jhazmat.2023.131388] [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] [Received: 02/27/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Previous studies highlighted the role of temperature on the foliar uptake of persistent organic pollutants (POPs) based on their physicochemical properties. However, few studies have focused on the indirect impacts of low temperature on the foliar uptake of POPs due to the changed physiology of leaves. We measured the concentrations and temporal variations of foliar POPs at the treeline on the Tibetan Plateau, the highest-altitudinal treeline on Earth. The leaves at the treeline showed high uptake efficiencies and reservoir capacity of dichlorodiphenyltrichloroethanes (DDTs), which were two times to one order of magnitude higher than those in forests worldwide. Enhanced surface adsorption due to the increased thickness of the wax layer in a colder climate was found to be the primary contributor (>60 %) to the high uptake of DDTs at the treeline, and slow penetration controlled by temperature contributed 13 %-40 %. The relative humidity, related negatively to temperature, also influenced the uptake rates of DDTs by foliage at the treeline (contribution: <10 %). The uptake rates of small molecular-weight POPs (hexachlorobenzene and hexachlorocyclohexanes) by foliage at the treeline were quite lower than those of DDTs, relating probably with the weak penetration of these compounds into leaves and/or low-temperature-induced precipitation washout from leaf surface.
Collapse
Affiliation(s)
- Ping Gong
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaoping Wang
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yonggang Xue
- Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China
| | - Lin Zhang
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Yongjie Wang
- State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China; South-East Tibetan Plateau Station for Integrated Observation and Research of Alpine Environment, Chinese Academy of Sciences, Nyingchi 860000, China
| |
Collapse
|
17
|
Sidiqa AN, Zakaria MN, Cahyanto A, Joni IM, Maskoen AM. Carbonation inhibitor by polyethylene glycol encapsulation of calcium hydroxide fine particles to improve antimicrobial and root canal penetration properties. Heliyon 2023; 9:e18005. [PMID: 37483813 PMCID: PMC10362243 DOI: 10.1016/j.heliyon.2023.e18005] [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: 12/23/2022] [Revised: 06/19/2023] [Accepted: 07/05/2023] [Indexed: 07/25/2023] Open
Abstract
The carbonation of calcium hydroxide (Ca(OH)2) is affected by humidity and a saturated atmosphere. Ca(OH)2 from nature is easily carbonation and self-aggregates into calcium carbonate (CaCO3), resulting in larger particle size impairing the antimicrobial properties due to lack of penetration into the dentinal tubules and lower ion dissociation. To reduce the particle size, the wet beads milling process with distilled water as the medium is commonly used, but often results in great carbonation of the final product. Polyethylene Glycol (PEG) may inhibit the carbonation process as well as re-agglomeration. However, it requires intensive drying of the fine Ca(OH)2 particles. As an alternative, we used ethanol as a medium in the milling process, which is easily dried and compatible with PEG as a surfactant. This study aimed to evaluate PEG 400 as a dispersing agent in ethanol medium in the beads milling process to prevent carbonation of the fine Ca(OH)2 particles. The following groups were analysed CaP-PEG (Ca(OH)2-PEG) with ethanol as a medium, CaP-Eth (Ca(OH)2 with ethanol as a medium), CaP-DW (Ca(OH)2 with distilled water as a medium), CaPC (Ca(OH)2-carbonated) as the negative control and CaC (Ca(OH)2 analytical grade) as the positive control The final particle results were characterized to evaluate the crystal structure, functional groups, and particle size. The corresponding pH and antimicrobial activity against Enterococcus faecalis were assessed at 1, 3, 7, and 14 days. The penetration ability was evaluated by Scanning Electron Microscope. The data obtained were analysed by ANOVA with a significance level of 5%. PEG was able to inhibit carbonation and stabilize pH for up to 14 days, providing increased antimicrobial activity against E. faecalis. PEG also facilitates the ability of fine Ca(OH)2 particles to penetrate deeper into the dentine tubules by reducing particle size.
Collapse
Affiliation(s)
- Atia Nurul Sidiqa
- Doctoral Study Program, Faculty of Medicine, Universitas Padjadjaran, Jalan Ir. Soekarno KM. 21, Jatinangor, Sumedang, 45363, West Java, Indonesia
- Department of Dental Materials, Faculty of Dentistry, Universitas Jenderal Achmad Yani, Jalan Terusan Jenderal Sudirman, Cimahi, 40531, West Java, Indonesia
| | - Myrna Nurlatifah Zakaria
- Department of Endodontology and Operative Dentistry, Faculty of Dentistry, Universitas Jenderal Achmad Yani, Jalan Terusan Jenderal Sudirman, Cimahi, 40531, West Java, Indonesia
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Jalan Profesor Diraja Ungku Aziz, Seksyen 13, 50603, Kuala Lumpur, Malaysia
| | - Arief Cahyanto
- Department of Dental Materials Science and Technology, Faculty of Dentistry, Universitas Padjadjaran, Jalan Ir. Soekarno KM. 21, Jatinangor, Sumedang, 45363, West Java, Indonesia
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Jalan Profesor Diraja Ungku Aziz, Seksyen 13, 50603, Kuala Lumpur, Malaysia
| | - I Made Joni
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jalan Ir. Soekarno KM. 21, Jatinangor, Sumedang, 45363, West Java, Indonesia
- Functional Nano Powder University Center of Excellence, Universitas Padjadjaran, Jalan Ir. Soekarno KM. 21, Jatinangor, Sumedang, 45363, West Java, Indonesia
| | - Ani Melani Maskoen
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Jalan Ir. Soekarno KM. 21, Jatinangor, Sumedang, 45363, West Java, Indonesia
| |
Collapse
|
18
|
Li J, Gong C, Chen X, Guo H, Tai Z, Ding N, Gao S, Gao Y. Biomimetic liposomal nanozymes improve breast cancer chemotherapy with enhanced penetration and alleviated hypoxia. J Nanobiotechnology 2023; 21:123. [PMID: 37038165 PMCID: PMC10084658 DOI: 10.1186/s12951-023-01874-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/26/2023] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Doxorubicin (Dox) has been recommended in clinical guidelines for the standard-of-care treatment of breast cancer. However, Dox therapy faces challenges such as hypoxia, acidosis, H2O2-rich conditions and condensed extracellular matrix in TME as well as low targeted ability. METHODS We developed a nanosystem H-MnO2-Dox-Col NPs based on mesoporous manganese dioxide (H-MnO2) in which Dox was loaded in the core and collagenase (Col) was wrapped in the surface. Further the H-MnO2-Dox-Col NPs were covered by a fusion membrane (MP) of inflammation-targeted RAW264.7 cell membrane and pH-sensitive liposomes to form biomimetic MP@H-MnO2-Dox-Col for in vitro and in vivo study. RESULTS Our results shows that MP@H-MnO2-Dox-Col can increase the Dox effect with low cardiotoxicity based on multi-functions of effective penetration in tumor tissue, alleviating hypoxia in TME, pH sensitive drug release as well as targeted delivery of Dox. CONCLUSIONS This multifunctional biomimetic nanodelivery system exhibited antitumor efficacy in vivo and in vitro, thus having potential for the treatment of breast cancer.
Collapse
Affiliation(s)
- Juanjuan Li
- School of Pharmacy & Zhong Shan Hospital, Fudan University, Shanghai, 201206, China
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Chunai Gong
- Department of Pharmacy, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200011, P. R. China
| | - Xinlu Chen
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Huanhuan Guo
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Zongguang Tai
- Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, 200443, China
| | - Nan Ding
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Shen Gao
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
| | - Yuan Gao
- School of Pharmacy & Zhong Shan Hospital, Fudan University, Shanghai, 201206, China.
- Department of Pharmacy, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
| |
Collapse
|
19
|
Liu J, Zhang J, Gao Y, Jiang Y, Guan Z, Xie Y, Hu J, Chen J. Barrier permeation and improved nanomedicine delivery in tumor microenvironments. Cancer Lett 2023; 562:216166. [PMID: 37028698 DOI: 10.1016/j.canlet.2023.216166] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [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: 12/19/2022] [Revised: 03/10/2023] [Accepted: 04/01/2023] [Indexed: 04/09/2023]
Abstract
Nanomedicines can effectively penetrate tumor sites compared to traditionally used drugs. However, effective drugs that reach the interior of tumors remain limited. Based on studies of the complex tumor microenvironment, we summarized the barriers restricting tumor penetration of nanomedicines in this review. Penetration barriers are mainly caused by tumor blood vessels, stroma, and cell abnormalities. The repair of abnormal tumor blood vessels and tumor stroma and adjusting the physicochemical properties of nanoparticles are considered promising strategies to improve the tumor permeation of nanomedicines. The effects of nanoparticle properties, including size, shape, and surface charge, on tumor penetration were also reviewed. We expect to provide research ideas and a scientific basis for nanomedicines to increase intratumoral permeability and improve anti-tumor effects.
Collapse
Affiliation(s)
- Jinxiang Liu
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Jiaying Zhang
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Yang Gao
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, PR China
| | - Yuxuan Jiang
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Zhenxin Guan
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Yiying Xie
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China
| | - Jinghui Hu
- School of Rehabilitation, Institute of Rehabilitation Engineering, Binzhou Medical University, Yantai, 264003, PR China.
| | - Jing Chen
- School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, PR China.
| |
Collapse
|
20
|
Li Z, Peng Y, Yang H, Li N, Huang X. Simulation and experimental studies of debris penetrating skull. J Biomech 2023; 151:111551. [PMID: 36947999 DOI: 10.1016/j.jbiomech.2023.111551] [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: 07/27/2022] [Revised: 03/04/2023] [Accepted: 03/14/2023] [Indexed: 03/24/2023]
Abstract
Studying the critical kinetic energy (CKE) and critical specific kinetic energy (CSKE) of the debris penetrating the human skull is of great importance for the development of head protection devices. In general, obtaining human skull specimens and conducting direct penetration experiments is difficult. Finite element simulation, on the other hand, is an effective method for determining critical values. However, it is necessary to validate the modeling and simulation method before conducting simulations on the human skull. To validate the method, this study first established a finite element model of a pig skull and performed simulations of debris penetrating the skull. The modeling and simulation methods were verified by comparing the corresponding penetration experimental results on pig skulls with those of the simulations. As the modeling and simulation methods were indirectly validated, an anatomical human skull finite element model was developed to conduct simulations of spherical and cubic debris penetrating the skull to iteratively obtain the CKE and CSKE of the two pieces of debris. Finally, the influence of different attitudes of cubic debris on the penetration energy of the human skull was investigated.
Collapse
Affiliation(s)
- Zhigang Li
- School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, China.
| | - Yang Peng
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
| | - Haifeng Yang
- School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing, China
| | - Na Li
- Radiology Department, Xiangya 3rd Hospital, Central South University, Changsha, China
| | - Xiancong Huang
- Research Institute of Quartermaster Engineering and Technology, Beijing, China
| |
Collapse
|
21
|
Lamy L, François M, Bezdetnaya L, Yakavets I. Phototoxicity of temoporfin-loaded cyclodextrin nanosponges in stroma-rich three-dimensional models of head and neck cancer. Eur J Pharm Biopharm 2023; 184:1-6. [PMID: 36682510 DOI: 10.1016/j.ejpb.2023.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 11/16/2022] [Revised: 01/07/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023]
Abstract
Photodynamic therapy is a multistage treatment, in which cancerous and precancerous cells are destroyed by light activation of a drug (photosensitizer). For a long time, high cellular uptake of the photosensitizer was an important indication of efficient PDT, while the role of photosensitizer penetration was unexplored. Recently, we have demonstrated that nanosponges based on hypercrosslinked β-cyclodextrin polymer (β-CDp) can increase drug penetration at the cost of their cellular uptake in multicellular spheroids, paving the way for studying the impact of penetration on PDT response. In the present work, we used β-CDp nanosponges to deliver temoporfin to the depth of stroma-rich head and neck cancer multicellular spheroids and then assess PDT response. Encapsulation of temoporfin in β-CDp nanosponges resulted in increased penetration and more uniform distribution of temoporfin in spheroids, however, was also associated with a two-fold reduction of cellular uptake compared to the free drug. Nevertheless, we demonstrated that β-CDp nanosponges possess similar PDT efficiency as the free drug in stroma-rich head and neck cancer multicellular spheroids. Overall, this study suggests that β-CDp nanosponges are a strong candidate for in vivo studies as they have fewer "off-target" effects while providing a similar therapeutic response.
Collapse
Affiliation(s)
- Laureline Lamy
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519 Vandoeuvre-lès-Nancy, France; Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Campus Sciences, Boulevard des Aiguillette, 54506 Vandoeuvre-lès-Nancy, France
| | - Manon François
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519 Vandoeuvre-lès-Nancy, France
| | - Lina Bezdetnaya
- Research Department, Institut de Cancérologie de Lorraine, 6 avenue de Bourgogne, 54519 Vandoeuvre-lès-Nancy, France; Centre de Recherche en Automatique de Nancy, Centre National de la Recherche Scientifique, UMR 7039, Université de Lorraine, Campus Sciences, Boulevard des Aiguillette, 54506 Vandoeuvre-lès-Nancy, France
| | - Ilya Yakavets
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, ON M5S 3H6, Canada.
| |
Collapse
|
22
|
Zhang Z, Wu Y, Huang F. A semi-empirical formula based on a modified general penetration resistance for predicting the motion of the rigid projectile. Heliyon 2023; 9:e13582. [PMID: 36873475 PMCID: PMC9976317 DOI: 10.1016/j.heliyon.2023.e13582] [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: 01/03/2023] [Revised: 01/28/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
The semi-empirical formula is an effective method for predicting the motion of rigid projectiles in practical applications due to the simplicity of its theory and the convenience of parameter calibration. The commonly used semi-empirical formula is Forrestal's form, combining several specific experimental cases that have been published, we find it exists deficiencies in predicting deceleration histories and the penetration depths of high velocities. To solve this problem, the general penetration resistance is employed to formulate the semi-empirical formula due to the 'general' characteristic of the general penetration resistance, and also make an assessment of this semi-empirical through experimental data. The results show that this semi-empirical method, like Forrestal's form, is not good at predicting high-velocity penetration depth. Thus, it propels us to develop a new semi-empirical formula. To this end, the general penetration resistance is modified with the assumption that the additional mass should be increased with the penetrating velocity and the projectile mass, based on which a new semi-empirical formula is developed. Then, the proposed semi-empirical formula is employed in individual published experimental data of different projectiles and striking velocities as well as different targets. The predictions of the proposed semi-empirical formula show good agreement with the experimental data both in penetration depths and deceleration histories, which also demonstrate the reasonableness of the assumption that the additional mass of rigid projectile increases with penetrating velocity and the projectile mass.
Collapse
|
23
|
Zhang P, Wu G, Zhang D, Lai WF. Mechanisms and strategies to enhance penetration during intravesical drug therapy for bladder cancer. J Control Release 2023; 354:69-79. [PMID: 36603810 DOI: 10.1016/j.jconrel.2023.01.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/05/2023]
Abstract
Bladder cancer (BCa) is one of the most prevalent cancers worldwide. The effectiveness of intravesical therapy for bladder cancer, however, is limited due to the short dwell time and the presence of permeation barriers. Considering the histopathological features of BCa, the permeation barriers for drugs to transport across consist of a mucus layer and a nether tumor physiological barrier. Mucoadhesive delivery systems or mucus-penetrating delivery systems are developed to enhance their retention in or penetration across the mucus layer, but delivery systems that are capable of mucoadhesion-to-mucopenetration transition are more efficient to deliver drugs across the mucus layer. For the tumor physiological barrier, delivery systems mainly rely on four types of penetration mechanisms to cross it. This review summarizes the classical and latest approaches to intravesical drug delivery systems to penetrate BCa.
Collapse
Affiliation(s)
- Pu Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Guoqing Wu
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Dahong Zhang
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China.
| | - Wing-Fu Lai
- Urology & Nephrology Center, Department of Urology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, China; Department of Food Science and Nutrition, Hong Kong Polytechnic University, Hong Kong, China.
| |
Collapse
|
24
|
Fidan ME, Erdemir A. Effect of different irrigation activation techniques on irrigation penetration into the simulated lateral canals. Odontology 2023; 111:132-141. [PMID: 35834067 DOI: 10.1007/s10266-022-00729-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 07/05/2022] [Indexed: 01/06/2023]
Abstract
This study, in which a hundred human teeth with single straight canal were used, focused on the evaluation of contrast solution penetration ability into the simulated lateral canals activated by XP-endo Finisher (XPF), EDDY, Nd:YAG, and Er:YAG laser systems with three different observation methods. The root canals were prepared up to X4 at working length using the ProTaper Next system. The teeth were decalcified and simulated lateral canals were created with #8 K-file at 2, 4, and 6 mm levels. Then the teeth were cleared using methyl salicylate and divided into 5 equal groups according to irrigation activation techniques (CSI, XPF, EDDY, Nd:YAG, and Er:YAG laser). After the contrast solution was activated, images of the simulated lateral canals were obtained by a dental microscope, digital radiography, and CBCT. The contrast solution penetration scores at the 2, 4, and 6 mm levels according to irrigation activation techniques and observation methods were analyzed statistically using Kruskal-Wallis non-parametric analysis of variance Bonferroni test post hoc comparisons. With the other 2 parameters are ignored, the highest and lowest contrast solution penetration were observed at 6 and 2 mm simulated lateral canal levels (p < 0.05), in Er:YAG irrigation activation and CSI technique (p < 0.05), and in direct visual and digital radiographic observation method (p < 0.05), respectively. Within the limits of this study, it was determined that the contrast solution penetration into the simulated lateral canals decreased from the coronal to the apical and achieved with the most effective Er:YAG laser activation technique. In addition, direct visual observation was found to be the best method for the assessment of contrast solution penetration.
Collapse
Affiliation(s)
- Mehmet Eren Fidan
- Department of Endodontics, Faculty of Dentistry, Kirikkale University, Kirikkale, Turkey.
| | - Ali Erdemir
- Department of Endodontics, Faculty of Dentistry, Kirikkale University, Kirikkale, Turkey
| |
Collapse
|
25
|
Cong Y, Baimanov D, Zhou Y, Chen C, Wang L. Penetration and translocation of functional inorganic nanomaterials into biological barriers. Adv Drug Deliv Rev 2022; 191:114615. [PMID: 36356929 DOI: 10.1016/j.addr.2022.114615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/05/2022] [Revised: 10/23/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022]
Abstract
With excellent physicochemical properties, inorganic nanomaterials (INMs) have exhibited a series of attractive applications in biomedical fields. Biological barriers prevent successful delivery of nanomedicine in living systems that limits the development of nanomedicine especially for sufficient delivery of drugs and effective therapy. Numerous researches have focused on overcoming these biological barriers and homogeneity of organisms to enhance therapeutic efficacy, however, most of these strategies fail to resolve these challenges. In this review, we present the latest progress about how INMs interact with biological barriers and penetrate these barriers. We also summarize that both native structure and components of biological barriers and physicochemical properties of INMs contributed to the penetration capacity. Knowledge about the relationship between INMs structure and penetration capacity will guide the design and application of functional and efficient nanomedicine in the future.
Collapse
Affiliation(s)
- Yalin Cong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China & Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Didar Baimanov
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China & Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China; Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, PR China
| | - Yunlong Zhou
- Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, PR China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China & Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; GBA Research Innovation Institute for Nanotechnology, Guangzhou 510700, Guangdong, PR China; Research Unit of Nanoscience and Technology, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China & Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China.
| |
Collapse
|
26
|
Kala S, Jawle CKD, Sogan N, Agarwal A, Kant K, Mishra BK, Kumar J. Analogous foliar uptake and leaf-to-root translocation of micelle nanoparticles in two dicot plants of diverse families. NanoImpact 2022; 28:100431. [PMID: 36206944 DOI: 10.1016/j.impact.2022.100431] [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] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 09/05/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Bio-inspired nanoparticles, including metallic, micelles, and polymeric, have been explored as a novel tool in the quest for effective and safe agrochemicals. Although nanoparticles (NPs) are being rapidly investigated for their usefulness in agricultural production and protection, little is known about the behaviour and interaction of oil-in-water micelle nanoparticles or nano-micelles (NM) with plants. We loaded a bio-based resin inherent of tree from the Pinaceae family as active material and produced stable nano-micelles using a natural emulsifier system. Here, we show that foliar-applied nano-micelle can translocate in two dicot plants belonging to diverse families (Coriandrum sativum -Apiaceae and Trigonella foenumgraecum -Fabaceae) via similar mode. Fluorescent-tagged NM (average diameter 11.20nm) showed strong signals and higher intensities as revealed by confocal imaging and exhibited significant adhesion in leaf compared to control. The NM subsequently translocates to other parts of the plants. As observed by SEM, the leaf surface anatomies revealed higher stomata densities and uptake of NM by guard cells; furthermore, larger extracellular spaces in mesophyll cells indicate a possible route of NM translocation. In addition, NM demonstrated improved wetting-spreading as illustrated by contact angle measurement. In a field bioassay, a single spray application of NM offered protection from aphid infestation for at least 9 days. There were no signs of phytotoxicity in plants post-application of NM. We conclude that pine resin-based nano-micelle provides an efficient, safe, and sustainable alternative for agricultural applications.
Collapse
Affiliation(s)
- Smriti Kala
- Formulation Division, Institute of Pesticide Formulation Technology (IPFT), Gurugram 122016, Haryana, India.
| | - Chetan K D Jawle
- Formulation Division, Institute of Pesticide Formulation Technology (IPFT), Gurugram 122016, Haryana, India
| | - Nisha Sogan
- Deapartment of Botany, Deshbandhu College, University of Delhi, Kalkaji, New Delhi 110019, India
| | - Amrish Agarwal
- Formulation Division, Institute of Pesticide Formulation Technology (IPFT), Gurugram 122016, Haryana, India
| | - Krishna Kant
- National Research Center for Seed Spice Research, Ajmer 305206, India
| | - B K Mishra
- National Research Center for Seed Spice Research, Ajmer 305206, India
| | - Jitendra Kumar
- Formulation Division, Institute of Pesticide Formulation Technology (IPFT), Gurugram 122016, Haryana, India
| |
Collapse
|
27
|
Danalou SZ, Ding XF, Zhu N, Emady HN, Zhang L. 4D study of liquid binder penetration dynamics in pharmaceutical powders using synchrotron X-ray micro computed tomography. Int J Pharm 2022; 627:122192. [PMID: 36116689 DOI: 10.1016/j.ijpharm.2022.122192] [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: 05/31/2022] [Revised: 08/28/2022] [Accepted: 09/06/2022] [Indexed: 10/31/2022]
Abstract
The properties of pharmaceutical powders, and the liquid binder, directly influence the penetration behavior in the wet granulation process of the pharmaceutical industry. Conventional methods encounter challenges in understanding this fast process. In this work, an emerging synchrotron-based X-ray imaging technique (having fast imaging capability) was employed to investigate the internal process from 2D and 3D to real-time (in-situ with ms time intervals) 3D (also considered 4D) perspectives. Two commonly used excipients (lactose monohydrate (LMH) and microcrystalline cellulose (MCC)) were used to make binary mixtures with acetaminophen (APAP) as the active pharmaceutical ingredient (API). Isopropanol and water were employed as liquid binders in the single droplet impact method. Results showed that for most of the mixtures, the porosity increased at higher fractions of APAP. MCC mixtures experienced less agglomeration and more uniform pore distribution than LMH ones, resulting in a faster droplet penetration with isopropanol. Moreover, the imbibition-spreading studies showed that isopropanol penetration in MCC powders followed more unidirectional vertical movement than horizontal spreading. Our results also demonstrated that simultaneous granulation of LMH with water resulted in much slower penetration. This study revealed that synchrotron X-ray imaging can investigate 3D internal pore structures and how they affect the quantitively real-time internal penetration dynamics.
Collapse
Affiliation(s)
- Sima Zeinali Danalou
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada
| | - Xiao Fan Ding
- Department of Biomedical Engineering, University of Saskatchewan, SK, Canada
| | - Ning Zhu
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada; Department of Biomedical Engineering, University of Saskatchewan, SK, Canada; Canadian Light Source Inc., SK, Canada
| | - Heather N Emady
- School for Engineering of Matter, Transport and Energy, Arizona State University, AZ, USA
| | - Lifeng Zhang
- Department of Chemical and Biological Engineering, University of Saskatchewan, SK, Canada.
| |
Collapse
|
28
|
Dohme A, Knoblauch M, Egorova A, Makarov V, Bogner E. Broad-spectrum antiviral diazadispiroalkane core molecules block attachment and cell-to-cell spread of herpesviruses. Antiviral Res 2022; 206:105402. [PMID: 36007600 DOI: 10.1016/j.antiviral.2022.105402] [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: 04/13/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 12/19/2022]
Abstract
Regarding the problems with the current available drugs many research studies deal with the class of the dispirotripiperazine (DSTP)-based compounds. These are small molecules consisting of polycyclic saturated ring systems with positively charged nitrogen atoms. These compounds can interact with negatively charged HSPGs and thus block viral attachment. In a previous paper by Adfeldt et al. (2021), we have shown that the diazadispiroalkane derivatives 11826091 and 11826236 exhibit dose-dependent antiviral activity against human cytomegalovirus (HCMV) and pseudorabies virus (PrV). In the present study, these two small molecules are evaluated against two other herpesvirus species, murine cytomegalovirus (MCMV) and herpes simplex virus type 1 (HSV-1), as well as a HCMV clinical isolate. They exhibit potent antiherpetic activity against these herpesviruses with a high selectivity index. The low cytotoxicity was underlined by the LD50 determination in mice. We have shown that inhibition occurs at an early stage of infection. Interestingly, 11826091 and 11826236 reduced immediate early gene expression in HCMV and HSV-1 infected cells in a dose-dependent manner. Both small molecules probably interact electrostatically with sulfated glycosaminoglycans (GAGs) of proteoglycans on target cells resulting in blockage of adsorption sites for herpesvirus glycoprotein. Moreover, both compounds showed significant effects against the cell-associated viral spread of HSV-1 and HCMV. Overall, this study shows that 11826091 and 11826236 represent two promising candidates for a new approach of a broad antiviral therapy.
Collapse
|
29
|
Koser J, Chirvi S, Banerjee A, Pintar FA, Hampton C, Kleinberger M. Repeated measures analysis of projectile penetration in porcine legs as a function of storage condition. J Forensic Leg Med 2022; 90:102395. [PMID: 35863258 DOI: 10.1016/j.jflm.2022.102395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/22/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/30/2022]
Abstract
Buried blast explosions create small projectiles which can become lodged in the tissue of personnel as far away as hundreds of meters. Without appropriate treatment, these lodged projectiles can become a source of infection and prolonged injury to soldiers in modern combat. Human cadavers can be used as surrogates for living humans for ballistic penetration testing, but human cadavers are frozen during transport and storage. The process of freezing and thawing the tissue before testing may change the biomechanical properties of the tissue. The goal of the current study was to understand penetration threshold differences between fresh, refrigerated, and frozen tissue and investigate factors that may contribute to these differences. A custom-built pneumatic launcher was used to accelerate 3/16″ stainless steel ball bearings toward porcine legs that were either tested fresh, following refrigerated storage, or following frozen storage. A generalized linear mixed model, accounting for within-animal dependence, owing to repeated observations, was found to be the most appropriate for these data and was used for analysis. The "generalized" model accommodated non-continuous observations, provided a straight-forward way to implement the repeated measures, and provided a risk estimate for projectile penetration. Both storage condition (p = 0.48) and leg (p = 0.07) were shown to be not significant and the confidence intervals for those variables were overlapping. As all covariates were found to be non-significant, a single model containing all impacts was used to develop a V50, or velocity at which 50% of impacts are expected to penetrate. From this model, 50% probability of penetration occurs at 137.3 m/s with 95% confidence intervals at 132.0 and 144.0 m/s. In this study, the fresh legs and previously frozen legs allowed penetration at similar velocities indicating that previously frozen legs were acceptable surrogates for fresh legs. This study only compared the penetration threshold in tissues that had been stored in differing conditions. To truly study penetration, more conditions will need to be studied including the effects of projectile mass and material, the effects of projectile shape, and the effects of clothing or protective layers on penetration threshold.
Collapse
Affiliation(s)
- Jared Koser
- Medical College of Wisconsin, Milwaukee, WI, USA; Zablocki Veterans Affairs Medical Center, Milwaukee, WI, USA; Marquette University, Milwaukee, WI, USA.
| | - Sajal Chirvi
- Medical College of Wisconsin, Milwaukee, WI, USA; Zablocki Veterans Affairs Medical Center, Milwaukee, WI, USA
| | | | - Frank A Pintar
- Medical College of Wisconsin, Milwaukee, WI, USA; Zablocki Veterans Affairs Medical Center, Milwaukee, WI, USA; Marquette University, Milwaukee, WI, USA
| | - Carolyn Hampton
- DEVCOM Army Research Laboratory, Aberdeen Proving Ground, MD, USA
| | | |
Collapse
|
30
|
Wihokrut S, Vorakulpipat C, Manosuthi P, Waikakul A. Proximity of mandibular third molar root(s) to surrounding cortical bone: cone beam computed tomography (CBCT) and panoramic findings. Oral Maxillofac Surg 2022; 26:311-319. [PMID: 34374876 DOI: 10.1007/s10006-021-00979-3] [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: 03/15/2021] [Accepted: 06/03/2021] [Indexed: 06/13/2023]
Abstract
PURPOSE We evaluated the relationship between mandibular third molar roots (M3Ms) and surrounding cortical bone using cone beam computed tomography (CBCT) and panoramic findings. We studied (a) the location of mandibular third molar roots in relation with cortical bone in terms of contact, penetration, and perforation on CBCT; (b) the relationship between characteristics of a root in panoramic findings and the CBCT image (entire and segmentally); and (c) the relationship of the root plane in panoramic findings vs. CBCT. MATERIAL AND METHODS One hundred five teeth with 224 roots of mandibular third molar from 73 patients were evaluated by using cone beam computed tomography and panoramic image. RESULT The relationships were assessed using 105 images of impacted M3Ms: 104/105 (99%) showed cortical bone involvement (30.4% penetration and 68.6% perforation). The more apical the segment, the higher the proportion of perforation. Most (79.9%) of the M3M roots involved a lingual cortex with 46.9% penetration and 49.2% perforation. The panoramic signs of segmental root images-viz. clear and blurred-were not associated with cortical penetration or perforation. Panoramic signs of individual root images-in the same and different planes-could be used to predict root plane M3M roots. The same appearance in the panoramic image was significantly related to the same plane of the root in CBCT (p-value 0.048). CONCLUSION These findings could contribute to enhanced radiological assessment and surgical planning.
Collapse
Affiliation(s)
- Saowapap Wihokrut
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, No. 6 Yothi Road, Ratchathewi District, Bangkok, 10400, Thailand
| | - Chakorn Vorakulpipat
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, No. 6 Yothi Road, Ratchathewi District, Bangkok, 10400, Thailand
| | - Pattamawan Manosuthi
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, No. 6 Yothi Road, Ratchathewi District, Bangkok, 10400, Thailand
| | - Aurasa Waikakul
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Mahidol University, No. 6 Yothi Road, Ratchathewi District, Bangkok, 10400, Thailand.
| |
Collapse
|
31
|
Zhao T, Zhang R, He Q, Zhou H, Song X, Gong T, Zhang Z. Partial ligand shielding nanoparticles improve pancreatic ductal adenocarcinoma treatment via a multifunctional paradigm for tumor stroma reprogramming. Acta Biomater 2022; 145:122-134. [PMID: 35381402 DOI: 10.1016/j.actbio.2022.03.050] [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: 01/22/2022] [Revised: 03/17/2022] [Accepted: 03/29/2022] [Indexed: 11/01/2022]
Abstract
The dense stroma that acts as a physical and biological barrier in the tumor microenvironment (TME) of pancreatic ductal adenocarcinoma (PDAC) leads to the failure of chemotherapeutic drug delivery. Cancer-associated fibroblasts (CAFs) and extracellular matrix (ECM) mainly constitute the refuge for cancer cells in PDAC. Herein, a CAF targeting drug delivery system (TDDS) based on RBC vesicles partial protection (RBC-Fn-NP) was established and investigated for reprogramming stroma, as well as enhancing tumor penetration and antitumor efficacy in PDAC. RBC vesicles were firstly used for partial protection of peptide from external influences. The exposed FnBPA5 peptide showed high affinity with both CAFs and the major components as collagen I and relaxed-fibronectin of ECM. Retinoic acid (RA) could disturb Golgi of CAFs, resulting in the reduction of protein secretion from the headstream. As expected, the strategy of RBC vesicles protected FnBPA5 targeting and RA-induced protein reduction was confirmed to reprogram the dense stroma and improve the penetration of Doxorubicin (Dox) in PDAC. RBC-Fn-NP inhibited tumor growth in both Pan02-orthotopic bearing model and Pan02-subcutaneous mice model. Hence, these partial ligand shielding nanoparticles offer a multifunctional and efficient approach to overcome penetration barriers and enhance the antitumor efficacy of chemotherapy in PDAC. STATEMENT OF SIGNIFICANCE: A partial ligand shielding nanoparticle platform (RBC-Fn-NP), which has the function of an RBC vesicle "shell" and thetargeting properties of a "core" to achieve superior therapeutic effects against PDAC, was established. The targeted ligand was modified on the surface of the nanoparticles instead of the RBC membranes. Three-dimensional PDAC stroma-rich spheroids were established to evaluate the penetration and tumor stroma remodeling. The targeting properties of FnBPA5 peptide, the effect of RA-induced Golgi disruption on the reduction of protein secretion, and the incomplete "camouflage" of the RBC vesicles were confirmed both in vitro and in vivo. As expected, our nanoplatform may provide a promising strategy for remolding dense stroma and enhancing the permeability in PDAC.
Collapse
Affiliation(s)
- Ting Zhao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China
| | - Rongping Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China
| | - Qin He
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China
| | - Hongli Zhou
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China
| | - Xu Song
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China; NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Devices & NMPA Research Base of Regulatory Science for Medical Devices, Sichuan University, Chengdu, China; National Engineering Research Center for Biomaterials & College of Biomedical Engineering, Sichuan University, Chengdu, China.
| | - Tao Gong
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China.
| | - Zhirong Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, Sichuan University, No.17, Block 3, Southern Renmin Road, Chengdu, Sichuan 610041, China
| |
Collapse
|
32
|
Kichou H, Dancik Y, Eklouh-Molinier C, Huang N, Soucé M, Gressin L, Gillet G, Chourpa I, Munnier E, Bonnier F. Highlighting the efficiency of ultrasound-based emulsifier-free emulsions to penetrate reconstructed human skin. Int J Cosmet Sci 2022; 44:262-270. [PMID: 35313006 DOI: 10.1111/ics.12772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 02/02/2022] [Revised: 03/16/2022] [Accepted: 03/19/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The cosmetic industry endeavours to strengthen the greener and safer claims of processes to respond to the high demand from customers for natural and environmentally friendly products. High Frequency Ultrasonication Technology (HFUT) is a physical process enabling the stabilisation of emulsions without requiring additional ingredients such as Emulsifying Surfactants (ES) to be introduced into the formulations. In this study, key formulation characteristics of an emulsion synthesised by HFUT and a reference emulsion (RE) were compared, as well as the permeation kinetics of caffeine, used as a model active cosmetic ingredient, from both types of emulsions. METHODS The pH, particle size and viscosity of emulsions prepared by the HFUT and the RE were determined and compared. The permeation of caffeine from the HFUT emulsion and the RE applied to the surface of reconstructed human epidermis (RHE) models was compared. RESULTS The ES-free formulations prepared by HFUT displayed a nearly 2-fold lower average particle size and over 3-fold greater viscosity, compared to the RE. Despite these differences, the absence of ES in the HFUT emulsion did not significantly alter the permeation kinetics of caffeine through RHE. The caffeine steady-state flux, lag time and permeability coefficients differed by 20 to 30% only. CONCLUSION This study demonstrates the potential of the HFUT to yield topical cosmetic products with lower requirements ingredients-wise, without losing efficacy, supporting the possible implementation of the technology in the cosmetic industry.
Collapse
Affiliation(s)
- Hichem Kichou
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France
| | - Yuri Dancik
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France.,Le STUDIUM Institute of Advanced Studies, 1 rue Dupanloup, 45000, Orléans, France.,Certara UK Ltd, Simcyp Division, Level 2-Acero, 1 Concourse Way, Sheffield, S1 2B1, United Kingdom
| | | | - Nicolas Huang
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92296, Châtenay-Malabry, France
| | - Martin Soucé
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France
| | | | | | - Igor Chourpa
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France
| | - Emilie Munnier
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France
| | - Franck Bonnier
- Université de Tours, Faculté de Pharmacie, EA6295 NMNS « NanoMédicaments et NanoSondes », France
| |
Collapse
|
33
|
Davoodi Z, Shafiee F. Internalizing RGD, a great motif for targeted peptide and protein delivery: a review article. Drug Deliv Transl Res 2022; 12:2261-2274. [PMID: 35015253 DOI: 10.1007/s13346-022-01116-7] [Citation(s) in RCA: 3] [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] [Accepted: 01/04/2022] [Indexed: 01/10/2023]
Abstract
Understanding that cancer is one of the most important health problems, especially in advanced societies, is not difficult. The term of targeted cancer therapy has also been well known as an ideal treatment strategy in the recent years. Peptides with ability to specifically recognize the cancer cells with suitable penetration properties have been used as the targeting motif in this regard. In the present review article, we focus on an individual RGD-derived peptide with ability to recognize the integrin receptor on the cancer cell surface like its ancestor with an additional outstanding feature to penetrate to extravascular space of tumor and ability to penetrate to cancer cells unlike the original peptide. This peptide which has been named "internalizing RGD" or "iRGD" has been the focus of researches as a new targeting motif since it was discovered. To date, many types of molecules have been associated with this peptide for their targeted delivery to cancer cells. In this review article, we have discussed a summary of penetration mechanisms of iRGD and all introduced peptides and proteins attached to this attractive cell-penetrating peptide and have expressed the results of the studies.
Collapse
Affiliation(s)
- Zeinabosadat Davoodi
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Hezar Jarib Ave., Isfahan, Iran
| | - Fatemeh Shafiee
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Hezar Jarib Ave., Isfahan, Iran.
| |
Collapse
|
34
|
Keskin E, Aydın HA, Gül Ş, Kalaycı M, Şimşek K. Rebar-induced transpalatal penetrating head trauma: a case report. Childs Nerv Syst 2021; 37:3939-3943. [PMID: 33392651 DOI: 10.1007/s00381-020-05030-6] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/22/2020] [Indexed: 11/29/2022]
Abstract
Penetrating head injuries caused by blunt or piercing objects are rare. In this paper, we present the case of a 9-year-old boy referred to our hospital with rebar-induced injury. The patient's neurological examination findings were normal. Computed tomography undertaken revealed that the rebar had entered through the oral cavity transorally-transpalatally, passing the frontal bone, and then exited the body by piercing the skin. The patient was taken to emergency surgery, and first, tracheostomy was performed. The rebar had been cut and shortened by the emergency rescue unit, which resulted in shortening the part of the foreign body that would pass through the brain parenchyma. During surgery, the rebar was carefully removed by following the route of the entry. All the defects caused by the foreign body were surgically repaired using a multidisciplinary approach, including neurosurgery and plastic and reconstructive surgery, by otolaryngology teams.
Collapse
Affiliation(s)
- Emrah Keskin
- Department of Neurosurgery, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey.
| | - Hasan Ali Aydın
- Department of Neurosurgery, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Şanser Gül
- Department of Neurosurgery, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Murat Kalaycı
- Department of Neurosurgery, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Kenan Şimşek
- Department of Neurosurgery, Zonguldak Bülent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| |
Collapse
|
35
|
Tavares CP, Sousa IC, Gomes MN, Miró V, Virkel G, Lifschitz A, Costa-Junior LM. Combination of cypermethrin and thymol for control of Rhipicephalus microplus: Efficacy evaluation and description of an action mechanism. Ticks Tick Borne Dis 2022; 13:101874. [PMID: 34839252 DOI: 10.1016/j.ttbdis.2021.101874] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 10/29/2021] [Accepted: 11/20/2021] [Indexed: 01/27/2023]
Abstract
The cattle tick Rhipicephalus microplus is one of the most important ectoparasites in the tropical and subtropical regions of the world. Synthetic pyrethroids are widely used to control this tick, and the selection of resistant populations is a huge problem worldwide. The activity of thymol, a natural monoterpene, free or in combination with other compounds, has been demonstrated against different species of ticks. However, the mode of action is not fully understood. The present study aimed to evaluate the efficacy and the potential mode of action of the combination of cypermethrin and thymol on ticks from two populations with different levels of susceptibility to cypermethrin (low and high susceptibility). The isolated acaricidal activity of cypermethrin and thymol on larvae was carried out in different concentrations. The combination with different concentrations of cypermethrin and fixed concentrations of thymol (1300 µg/mL for the low susceptibility population; 690 µg/mL for the high susceptibility population) were performed. Adult engorged females were divided into five experimental groups (n = 20): 1) Control group untreated; 2) Control group: 2.0% (v/v) DMSO; 3) Thymol group: 1300 µg/mL thymol; 4) Cypermethrin group: 3700 µg/mL cypermethrin; 5) Association of cypermethrin (3700 µg/mL) + thymol (1300 µg/mL). A subgroup was used to study the efficacy of the reproductive parameters and another subgroup, with ten adults from each treatment, was used to quantify thymol and cypermethrin by HPLC chromatographic analysis. All compounds tested were effective on larvae from both populations, and the combination with thymol decreased the LC50 of cypermethrin (232.4 to 52.7 µg/mL) on the low-susceptibility population. The combination of thymol and cypermethrin was effective in both populations of R. microplus (reproductive performance of engorged females) when compared to the untreated control group, even with higher percent control values (pop. 1: 93.5 ± 5.6% and pop. 2: 92.7 ± 1.1%) than the group treated only with cypermethrin (pop. 1: 87.3 ± 7.3% and pop. 2: 83.5 ± 1.2%). From the HPLC analyzes, a higher concentration of cypermethrin (pop. 1: 30.3 ± 6.9 and pop. 2: 45.4 ± 17.7 ng/mg) was detected in the tissues of engorged females treated with the combination compared to analyte concentrations in groups treated with cypermethrin only (pop. 1: 12.4 ± 4.4 pop. 2: 25.5 ± 9.4 ng/mg). This was the first study to investigate the acaricidal efficacy of the combination of thymol + cypermethrin on R. microplus and demonstrate that the presence of thymol increases the concentration of cypermethrin in the internal tissues of engorged females through a possible mechanism for increasing the penetration of cypermethrin at the cuticular level.
Collapse
|
36
|
Jiang M, Li Z, Liu K, Zhang R, Wu Z. Numerical study of the dynamic expansion behaviour of 9 mm expansion bullets in gelatine. Forensic Sci Int 2021; 329:111051. [PMID: 34688187 DOI: 10.1016/j.forsciint.2021.111051] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 10/20/2022]
Abstract
Due to their limited penetration power, expansion bullets are known for their good effectiveness and less endangerment to bystanders, thereby playing an important role in the fight against terrorism and violence. This study considered 20 bullet configurations with different shape parameters influencing the motion and deformation of 9 mm expansion bullets in gelatine. Owing to the constraints of high-speed photography, experimental observations have limitations. However, through numerical simulation, this study found that the penetration process of the 9 mm expansion bullets through biological tissues, as represented by the gelatine block in this study, can be subdivided into four stages. Further, the expansion bullet is highly sensitive to the impact velocity, and did not completely expand when travelling at speeds below the critical velocity and over-expanded when travelling at speeds above the threshold velocity. The results of this study revealed the interaction mechanism between expansion bullets and gelatine, which are significant to ballistic wounding assessment and treatment of expansion bullets.
Collapse
Affiliation(s)
- Mingfei Jiang
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China 210094.
| | - Zhongxin Li
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China 210094.
| | - Kun Liu
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China 210094.
| | - Ruijie Zhang
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China 210094.
| | - Zhilin Wu
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China 210094.
| |
Collapse
|
37
|
Li X, Ke Z, Xu S, Tang W, Liu Z. The G-protein alpha subunit CgGa1 mediates growth, sporulation, penetration and pathogenicity in Colletotrichum gloeosporioides. Microb Pathog 2021; 161:105254. [PMID: 34687840 DOI: 10.1016/j.micpath.2021.105254] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/06/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 11/19/2022]
Abstract
Colletotrichum gloeosporioides is the main pathogen causing rubber anthracnose, which brings huge economic loss to the natural rubber industry. Heterotrimeric G proteins play a vital role in signal transduction in filamentous fungi, and G alpha subunits are the major component of G proteins. In this study, we characterize a group I Gα subunit CgGa1 in C. gloeosporioides as a homolog of MagB in Pyricularia oryzae. CgGa1 encodes a 353-amino acid protein and has a G_alpha domain. Deletion of CgGa1 results in reduced vegetative growth and conidia yield, and the mutant cannot produce a fruiting body. The CgGa1 deletion mutant also exhibits decreased conidial germination and appressorium formation significantly. Moreover, the mutant has an obvious deficiency in penetration and loses its virulence completely. Transcriptome analysis showed that CgGa1 could affect the expression of many genes related to carbohydrate metabolism, amino acid metabolism and signal transduction, etc. In conclusion, CgGa1 regulates growth, asexual and sexual sporulation, appressorium formation, penetration and pathogenicity of C. gloeosporioides.
Collapse
Affiliation(s)
- Xiaoyu Li
- School of Life Sciences, Hainan University, Haikou, 570228, China
| | - Zhijian Ke
- School of Life Sciences, Hainan University, Haikou, 570228, China
| | - Shuang Xu
- School of Life Sciences, Hainan University, Haikou, 570228, China
| | - Wen Tang
- School of Life Sciences, Hainan University, Haikou, 570228, China
| | - Zhiqiang Liu
- School of Life Sciences, Hainan University, Haikou, 570228, China.
| |
Collapse
|
38
|
Shiraishi T, Wada H, Hashimoto S, Katayama H, Taba M, To K. A case of two traumatic penetrations of a duodenal diverticulum caused by a kick to the upper abdomen. Int J Surg Case Rep 2021; 87:106388. [PMID: 34536768 PMCID: PMC8449237 DOI: 10.1016/j.ijscr.2021.106388] [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: 08/05/2021] [Revised: 09/03/2021] [Accepted: 09/03/2021] [Indexed: 11/21/2022] Open
Abstract
Introduction and importance A duodenal diverticulum is a pseudodiverticulum that lacks a proper muscular layer. Cases of traumatic penetration or perforation of a duodenal diverticulum are relatively rare. Case presentation A 67-year-old woman was injured when her roommate kicked her in the upper abdomen, and was transferred to our hospital 6 h after the injury with upper abdominal pain and lethargy. Computed tomography revealed a duodenal diverticulum and retroperitoneal emphysematous changes and exudates. Peritonitis due to duodenal penetration was suspected and emergency laparotomy was performed. Intraoperative findings revealed two traumatic penetrations of the duodenal diverticulum. We resected the diverticulum with an automatic suture device and covered the resection site with omentum. Twenty-one days postoperatively, she was transferred to her original hospital with no complications following an uneventful postoperative course. Clinical discussion Most causes of penetration or perforation of the duodenal diverticulum are diverticulitis, and few reports have described penetration or perforation of duodenal diverticulum due to trauma. Our case was extremely rare that caused by a kick to the upper abdomen and resulted in two penetrations of a duodenal diverticulum although factors contributing to the multiple penetrations were considered. Conclusion Penetration or perforation of a duodenal diverticulum occasionally results in a rapid deterioration to a severe state. Comprehensive judgement of the general condition and laboratory findings and selection of an appropriate treatment policy is important. Few reports have described penetration or perforation of a duodenal diverticulum due to trauma. This case is extremely rare of two penetrations of a duodenal diverticulum caused by a kick to the upper abdomen. Penetration or perforation of a duodenal diverticulum often leads rapidly to a severe state. Comprehensive judgement of the general condition and selection of an appropriate treatment policy is important.
Collapse
Affiliation(s)
- Toshio Shiraishi
- Department of Surgery, Sasebo Chuo Hospital, 15 yamato, Sasebo, Nagasaki 857-1195, Japan; Department of Surgery, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan.
| | - Hideo Wada
- Department of Surgery, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan
| | - Shintaro Hashimoto
- Department of Surgery, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan
| | - Hiroki Katayama
- Department of Surgery, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan
| | - Mitsuru Taba
- Department of Pathology, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan
| | - Kazuo To
- Department of Surgery, Ureshino medical Center, 4279-3 Ureshino, Saga 843-0393, Japan
| |
Collapse
|
39
|
Li X, Yu L, Zhang C, Niu X, Sun M, Yan Z, Wang W, Yuan Z. Tumor acid microenvironment-activated self-targeting & splitting gold nanoassembly for tumor chemo-radiotherapy. Bioact Mater 2021; 7:377-388. [PMID: 34466739 PMCID: PMC8379383 DOI: 10.1016/j.bioactmat.2021.05.050] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/29/2021] [Accepted: 05/29/2021] [Indexed: 12/14/2022] Open
Abstract
Low accumulation and penetration of nanomedicines in tumor severely reduce therapeutic efficacy. Herein, a pH-responsive gold nanoassembly is designed to overcome these problems. Polyethylene glycol linked raltitrexed (RTX, target ligand and chemotherapy drug) and two tertiary amine molecules (1-(2-aminoethyl) pyrrolidine and N,N-dibutylethylenediamine) are modified on the surface of the 6-nm gold nanoparticles by lipoic acid to form gold nanoassembly defined as Au-NNP(RTX). The Au-NNP (RTX) nanoassembly could remain at about 160 nm at the blood circulation (pH 7.4), while split into 6-nm gold nanoparticles due to tertiary amine protonation at tumor extracellular pH (pH 6.8). This pH-responsive disassembly behavior endows Au-NNP(RTX) better tumor tissue permeability through the better diffusion brought by the size reduction. Meanwhile, after disassembly, more RTXs on the surface of gold nanoparticles are exposed from the shielded state of assembly along with 2.25-fold augment of cellular uptake capability. Most importantly, the results show that Au-NNP(RTX) possesses of high tumor accumulation and effective tumor penetration, thereby enhancing the tumor chemo-radiotherapy efficiency. A pH-responsive self-targeting & splitting gold nanoassembly is fabricated. The nanoassembly holds better tumor tissue permeability by the size reduction. The nanoassembly enhances targeting capability by ligand shielding and exposure. Clever design endows the system synergistic effect of chemo-radiotherapy.
Collapse
Affiliation(s)
- Xiaomin Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Licheng Yu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Biomedical Barriers Research Center, Institute of Biomedical Engineering, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, 300192, China
| | - Xiaoyan Niu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Mengjie Sun
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zichao Yan
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wei Wang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhi Yuan
- Key Laboratory of Functional Polymer Materials of Ministry of Education, College of Chemistry, Nankai University, Tianjin, 300071, China.,Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| |
Collapse
|
40
|
Gehrke T, Citak M, Abdelaziz H. Do Not Postpone Revision of Worn Conventional Liners in Ceramic-on-Polyethylene Total Hip Arthroplasty: A New Dramatic Failure. Arthroplast Today 2021; 10:108-13. [PMID: 34345640 DOI: 10.1016/j.artd.2021.06.011] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/12/2021] [Accepted: 06/14/2021] [Indexed: 12/03/2022] Open
Abstract
Catastrophic failure of ceramic-on-polyethylene total hip arthroplasty is still occasionally described. We report on a new case of complete atraumatic penetration of an intact ceramic head through the titanium cup in a cementless total hip arthroplasty due to dramatic polyethylene and metal wear. We reviewed the literature for similar cases and analyzed potential risk factors. Most importantly, revision of radiologically worn liners should not be postponed, especially in young and active patients with conventional liners, because the time to dramatic failure could be shorter than expected.
Collapse
|
41
|
Abdelhamid MK, Rychlik I, Hess C, Hatfaludi T, Crhanova M, Karasova D, Lagler J, Liebhart D, Hess M, Paudel S. Typhlitis induced by Histomonas meleagridis affects relative but not the absolute Escherichia coli counts and invasion in the gut in turkeys. Vet Res 2021; 52:92. [PMID: 34158121 PMCID: PMC8220719 DOI: 10.1186/s13567-021-00962-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 05/28/2021] [Indexed: 12/22/2022] Open
Abstract
Unlike in chickens, dynamics of the gut microbiome in turkeys is limitedly understood and no data were yet published in context of pathological changes following experimental infection. Thus, the impact of Histomonas meleagridis-associated inflammatory changes in the caecal microbiome, especially the Escherichia coli population and their caecal wall invasion in turkeys was investigated. Birds experimentally inoculated with attenuated and/or virulent H. meleagridis and non-inoculated negative controls were divided based on the severity of macroscopic caecal lesions. The high throughput amplicon sequencing of 16SrRNA showed that the species richness and diversity of microbial community significantly decreased in severely affected caeca. The relative abundances of operational taxonomic units belonging to Anaerotignum lactatifermentans, E. coli, and Faecalibacterium prausnitzii were higher and paralleled with a decreased abundances of those belonging to Alistipes putredinis, Streptococcusalactolyticus, Lactobacillus salivarius and Lactobacillus reuteri in birds with the highest lesion scores. Although the relative abundance of E. coli was higher, the absolute count was not affected by the severity of pathological lesions. Immunohistochemistry showed that E. coli was only present in the luminal content of caecum and did not penetrate even severely inflamed and necrotized caecal wall. Overall, it was demonstrated that the fundamental shift in caecal microbiota of turkeys infected with H. meleagridis was attributed to the pathology induced by the parasite, which only led to relative but not absolute changes in E. coli population. Furthermore, E. coli cells did not show tendency to penetrate the caecal tissue even when the intestinal mucosal barriers were severely compromised.
Collapse
Affiliation(s)
- Mohamed Kamal Abdelhamid
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.,Department of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Ivan Rychlik
- Department of Immunology, Veterinary Research Institute, 62100, Brno, Czech Republic
| | - Claudia Hess
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Tamas Hatfaludi
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.,Christian Doppler Laboratory for Innovative Poultry Vaccines (IPOV), University of Veterinary Medicine, Vienna, Austria
| | - Magdalena Crhanova
- Department of Immunology, Veterinary Research Institute, 62100, Brno, Czech Republic
| | - Daniela Karasova
- Department of Immunology, Veterinary Research Institute, 62100, Brno, Czech Republic
| | - Julia Lagler
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.,Section of Immunology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Dieter Liebhart
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria
| | - Michael Hess
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.,Christian Doppler Laboratory for Innovative Poultry Vaccines (IPOV), University of Veterinary Medicine, Vienna, Austria
| | - Surya Paudel
- Clinic for Poultry and Fish Medicine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.
| |
Collapse
|
42
|
Malhotra D, Pan S, Rüther L, Schlippe G, Voss W, Germann N. Polysaccharide-based skin scaffolds with enhanced mechanical compatibility with native human skin. J Mech Behav Biomed Mater 2021; 122:104607. [PMID: 34198231 DOI: 10.1016/j.jmbbm.2021.104607] [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: 10/23/2020] [Revised: 03/26/2021] [Accepted: 05/17/2021] [Indexed: 01/17/2023]
Abstract
We report a custom-made technique to synthesize process-convenient skin scaffolds by tuning the mechanical properties of hydrogels based on a few naturally occurring polysaccharides to match the rheological properties of previously established benchmarks, i.e., the ex vivo native human skins. We studied the mechanical parameters using oscillatory shear rheology. At small strain amplitudes, the intrinsic elastic modulus showed an almost linear dependence in the middle and a changing rate profile at the two ends with concentration of the principal hydrogel component variant, i.e., kappa (κ)-carrageenan. At large strain amplitudes, the hydrogels demonstrated intercycle strain-softening behavior, the onset of which was directly proportional to the κ-carrageenan concentration. We observed a concentration match for the intrinsic elastic modulus of the benchmark within this sigmoidal curve fit. Contextually, we need to explore other potent polymeric hydrogel systems to achieve mechanical affinity in terms of multiple rheological parameters derived from both strain amplitude and angular frequency sweeps. Additionally, we carried out diffusion experiments to study caffeine permeation attributes. The hydrogels show improved barrier features with increasing κ-carrageenan concentration. In terms of the penetration flux and total cumulative amount of permeated caffeine, this enhanced mechanical adherence demonstrates comparable penetration features with the commercial 3D skin model.
Collapse
Affiliation(s)
- Deepika Malhotra
- Fluid Dynamics of Complex Biosystems, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, 85354, Germany.
| | - Sharadwata Pan
- Fluid Dynamics of Complex Biosystems, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, 85354, Germany.
| | - Lars Rüther
- Dermatest GmbH, Engelstraße 37, Münster, 48143, Germany.
| | | | - Werner Voss
- Dermatest GmbH, Engelstraße 37, Münster, 48143, Germany.
| | - Natalie Germann
- Fluid Dynamics of Complex Biosystems, School of Life Sciences Weihenstephan, Technical University of Munich, Freising, 85354, Germany.
| |
Collapse
|
43
|
Lochman P, Páral J. Primary Gastric Lymphoma Invading Spleen, Pancreas, and Transverse Colon. Case Rep Oncol 2021; 14:928-930. [PMID: 34248560 PMCID: PMC8255734 DOI: 10.1159/000516759] [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: 04/01/2021] [Accepted: 04/12/2021] [Indexed: 11/29/2022] Open
Abstract
Primary gastric lymphoma is a relatively rare tumour which is not primarily indicated on for surgical treatment. We present a case of locally advanced primary gastric lymphoma with penetration to the surrounding organs that had to be managed surgically. The proximal gastrectomy with splenectomy, distal pancreatectomy, and left colectomy was performed. We reached R0 resection, and patient was recovered well.
Collapse
Affiliation(s)
- Petr Lochman
- Department of Field Surgery, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czechia.,Department of Surgery, Charles University Faculty of Medicine and University Hospital, Hradec Králové, Czechia
| | - Jiří Páral
- Department of Field Surgery, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czechia.,Department of Surgery, Charles University Faculty of Medicine and University Hospital, Hradec Králové, Czechia
| |
Collapse
|
44
|
Nakamura M, Otsuka T, Hayashi R, Horita T, Ota M, Sakurai N, Takano H, Hayashi T, Miura S, Ueda N, Takamura H, Arisawa T. Dissection and removal of bile duct plastic stents penetrating the duodenal papilla: report of three rare cases. Clin J Gastroenterol 2021; 14:1255-1262. [PMID: 34002284 DOI: 10.1007/s12328-021-01435-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 05/02/2021] [Indexed: 11/28/2022]
Abstract
We encountered three cases with incidental penetration of a straight Amsterdam-type bile duct plastic stent into the duodenal papilla. All patients had undergone insertion of a biliary plastic stent due to common bile duct stones. However, in all three cases, we observed penetration of the biliary plastic stent into the duodenal papilla just before the elective surgery or at the time of plastic stent replacement. We, therefore, performed stent dissection using a bipolar snare and were able to safely remove the plastic stents in all three cases. We believe that this is the first report of plastic stent dissection using a bipolar snare.
Collapse
Affiliation(s)
- Masakatsu Nakamura
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan.
| | - Toshimi Otsuka
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Ranji Hayashi
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Tomoe Horita
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Masafumi Ota
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Naoko Sakurai
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Hikaru Takano
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Tasuku Hayashi
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Seiko Miura
- Department of Surgical Oncology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Nobuhiko Ueda
- Department of Surgical Oncology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Hiroyuki Takamura
- Department of Surgical Oncology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| | - Tomiyasu Arisawa
- Department of Gastroenterology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Ishikawa, 920-0293, Japan
| |
Collapse
|
45
|
Yunna C, Mengru H, Fengling W, Lei W, Weidong C. Emerging strategies against tumor-associated fibroblast for improved the penetration of nanoparticle into desmoplastic tumor. Eur J Pharm Biopharm 2021; 165:75-83. [PMID: 33991610 DOI: 10.1016/j.ejpb.2021.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/19/2020] [Revised: 03/31/2021] [Accepted: 05/04/2021] [Indexed: 12/13/2022]
Abstract
The therapeutic effect of nanoparticles is limited in solid tumors, especially desmoplastic tumors, because the tumor matrix hinders the delivery of nanoparticles. As the most abundant cells in the tumor stroma, tumor-associated fibroblasts (TAFs) produce a dense extracellular matrix, which leads to higher tissue fluid pressure, thereby creating a physical barrier for nanoparticle delivery. Therefore, researchers focused on eliminating TAFs to combat desmoplastic tumors. In recent years, a series of methods for TAFs have been developed. In this paper, we first introduced the biological mechanism of TAFs hindering the penetration of nanoparticles. Then, the different methods of eliminating TAFs were summarized, and the mechanism of nanomedicine in eliminating TAFs was highlighted. Finally, the problems and future development directions for TAFs treatment were discussed from the perspective of the treatment of desmoplastic tumors.
Collapse
Affiliation(s)
- Chen Yunna
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Hu Mengru
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China
| | - Wang Fengling
- Department of Pharmacy, The Second People's Hospital of Hefei, Hefei, Anhui 230011, China
| | - Wang Lei
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
| | - Chen Weidong
- College of Pharmacy, Anhui University of Chinese Medicine, Hefei, Anhui 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, Anhui 230012, China.
| |
Collapse
|
46
|
Liu Y, Zhou J, Li Q, Li L, Jia Y, Geng F, Zhou J, Yin T. Tumor microenvironment remodeling-based penetration strategies to amplify nanodrug accessibility to tumor parenchyma. Adv Drug Deliv Rev 2021; 172:80-103. [PMID: 33705874 DOI: 10.1016/j.addr.2021.02.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [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: 12/17/2020] [Revised: 02/05/2021] [Accepted: 02/23/2021] [Indexed: 12/12/2022]
Abstract
Remarkable advances in nano delivery systems have provided new hope for tumor prevention, diagnosis and treatment. However, only limited clinical therapeutic effects against solid tumors were achieved. One of the main reasons is the presence of abundant physiological and pathological barriers in vivo that impair tumoral penetration and distribution of the nanodrugs. These barriers are related to the components of tumor microenvironment (TME) including abnormal tumor vasculature, rich composition of the extracellular matrix (ECM), and abundant stroma cells. Herein, we review the advanced strategies of TME remodeling to overcome these biological obstacles against nanodrug delivery. This review aims to offer a perspective guideline for the implementation of promising approaches to facilitate intratumoral permeation of nanodrugs through alleviation of biological barriers. At the same time, we analyze the advantages and disadvantages of the corresponding methods and put forward possible directions for the future researches.
Collapse
Affiliation(s)
- Yanhong Liu
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jiyuan Zhou
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Qiang Li
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Lingchao Li
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Yue Jia
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Feiyang Geng
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China
| | - Jianping Zhou
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
| | - Tingjie Yin
- Department of Pharmaceutics, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
| |
Collapse
|
47
|
Li XX, He LF, Pang XY, Gao YY, Liu Y, Zhang P, Wei G, Mu W, Li BX, Liu F. Tank-mixing adjuvants enhanced the efficacy of fludioxonil on cucumber anthracnose by ameliorating the penetration ability of active ingredients on target interface. Colloids Surf B Biointerfaces 2021; 204:111804. [PMID: 33940521 DOI: 10.1016/j.colsurfb.2021.111804] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 02/24/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 01/06/2023]
Abstract
In this study, pot and field experiments showed that S903, Hasten and Gemini-31511 can significantly enhanced the control efficacy of fludioxonil on cucumber anthracnose. Then by studying the deposition and penetration interaction between active ingredients and cucumber leaves to revealed how the adjuvants influence the interaction process between pesticide active ingredients and target plants to improve the control efficacy. By analysis the effect of fludioxonil deposition to synergism of adjuvants, indicated that fludioxonil active ingredient deposition caused by adjuvants was not the main factor for the adjuvants synergistic effect. Fludioxonil + S903 yielded the lowest surface tension and contact angle, which also implying the best wetting ability. The mean diameters in Hasten + fludioxonil group were much smaller than those in only fludioxonil group (5.39 μm-90 g a.i. ha-1, 5.50 μm-180 g a.i. ha-1), the average particle size only had 3.45 μm (90 g a.i. ha-1) and 3.94 μm (180 g a.i. ha-1). And the result of spray droplets was consistent with the particles of fludioxonil crystals observed on glass slides and cucumber leaves. Therefore, S903 improved the penetrability of fludioxonil in the target plants by improving the wetting and dispersion of active ingredients on the target interface. Meantime, Hasten improved the penetrability of fludioxonil in the target plants by decreasing the particle size of active ingredients.
Collapse
Affiliation(s)
- Xiao-Xu Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Li-Fei He
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiu-Yu Pang
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong, 271016, China
| | - Yang-Yang Gao
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Yang Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Peng Zhang
- College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Guang Wei
- Central Research Institute of China Chemical Science and Technology Co., Ltd., Beijing, 100011, China
| | - Wei Mu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Bei-Xing Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China; Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
| |
Collapse
|
48
|
Dommisch H, Stolte KN, Jager J, Vogel K, Müller R, Hedtrich S, Unbehauen M, Haag R, Danker K. Characterization of an ester-based core-multishell (CMS) nanocarrier for the topical application at the oral mucosa. Clin Oral Investig 2021; 25:5795-5805. [PMID: 33821321 PMCID: PMC8443517 DOI: 10.1007/s00784-021-03884-x] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 03/11/2021] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Topical drug administration is commonly applied to control oral inflammation. However, it requires sufficient drug adherence and a high degree of bioavailability. Here, we tested the hypothesis whether an ester-based core-multishell (CMS) nanocarrier is a suitable nontoxic drug-delivery system that penetrates efficiently to oral mucosal tissues, and thereby, increase the bioavailability of topically applied drugs. MATERIAL AND METHODS To evaluate adhesion and penetration, the fluorescence-labeled CMS 10-E-15-350 nanocarrier was applied to ex vivo porcine masticatory and lining mucosa in a Franz cell diffusion assay and to an in vitro 3D model. In gingival epithelial cells, potential cytotoxicity and proliferative effects of the nanocarrier were determined by MTT and sulphorhodamine B assays, respectively. Transepithelial electrical resistance (TEER) was measured in presence and absence of CMS 10-E-15-350 using an Endohm-12 chamber and a volt-ohm-meter. Cellular nanocarrier uptake was analyzed by laser scanning microscopy. Inflammatory responses were determined by monitoring pro-inflammatory cytokines using real-time PCR and ELISA. RESULTS CMS nanocarrier adhered to mucosal tissues within 5 min in an in vitro model and in ex vivo porcine tissues. The CMS nanocarrier exhibited no cytotoxic effects and induced no inflammatory responses. Furthermore, the physical barrier expressed by the TEER remained unaffected by the nanocarrier. CONCLUSIONS CMS 10-E-15-350 adhered to the oral mucosa and adhesion increased over time which is a prerequisite for an efficient drug release. Since TEER is unaffected, CMS nanocarrier may enter the oral mucosa transcellularly. CLINICAL RELEVANCE Nanocarrier technology is a novel and innovative approach for efficient topical drug delivery at the oral mucosa.
Collapse
Affiliation(s)
- H Dommisch
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany. .,Department of Periodontology, University of Washington, Seattle, WA, USA.
| | - K N Stolte
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - J Jager
- Institute for Biochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117, Berlin, Germany
| | - K Vogel
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - R Müller
- Department of Periodontology, Oral Medicine and Oral Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 14197, Berlin, Germany
| | - S Hedtrich
- Pharmacology and Toxicology, Institute of Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany.,Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC, V6T1Z3, Canada
| | - M Unbehauen
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - R Haag
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, 14195, Berlin, Germany
| | - K Danker
- Institute for Biochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117, Berlin, Germany
| |
Collapse
|
49
|
Sun C, Yang X, Zhang X, Ma Q, Yu P, Cai X, Zhou Y. The impact of tourniquet on tibial bone cement penetration in different zones in primary total knee arthroplasty: a meta-analysis. J Orthop Surg Res 2021; 16:198. [PMID: 33731155 PMCID: PMC7968365 DOI: 10.1186/s13018-021-02345-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/09/2021] [Indexed: 11/20/2022] Open
Abstract
Background Cement mantle penetration and the cement–bone interface strength were critical to a successful primary total knee arthroplasty (TKA). It remained unclear whether decreased blood and fat in the cancellous bone achieved with the use of a tourniquet increases tibial cement mantle penetration in different zones on AP and lateral view in TKA according to criteria defined by the Knee Society Scoring System (KSS). The purpose of this study was to determine whether tourniquet use influences tibial cement mantle penetration in different zones on AP and lateral view in TKA according to KSS. Methods We conducted a meta-analysis to identify studies involving the impact of tourniquet use and no tourniquet use on tibial bone cement penetration in primary TKA in electronic databases, including Web of Science, Embase, PubMed, Cochrane Controlled Trials Register, Cochrane Library, Highwire, CBM, VIP, Wanfang database, up to January 2021. Finally, we identified 1231 patients (1231 knees) assessed in twelve studies. Results Tourniquet use increases the cumulative cement mantle penetration (P < 0.00001), mean cement mantle penetration (P = 0.004), and cement mantle in zone 3(P < 0.0001) on AP view. However, there were no significant differences in cement mantle in zone 1(P = 0.5), zone 2(P =0 .54), zone 4(P = 0.07) on AP view, and zone 1(P = 0.32), zone 2(P = 0.38) on lateral view between two groups. There were also no significant differences in length of surgery(P = 0.7), change in hemoglobin(P = 0.4), transfusion rates(P = 0.47), and complications such as muscular calf vein thrombosis(P = 0.21), superficial infection (P = 0.72), and deep vein thrombosis (P = 0.66) between two groups. Conclusion The application of a tourniquet increases the thickness of the tibial bone cement penetration—the increase in the thickness of bone cement penetration mainly located in zone 3 on the anteroposterior (AP) view.
Collapse
Affiliation(s)
- Changjiao Sun
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China
| | - Xin Yang
- Department of Orthopedic, Peking University First Hospital, No. 8 Xishiku Street, Xicheng District, Beijing, China
| | - Xiaofei Zhang
- Department of Clinical Epidemiology and Biostatistics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Dongxiaokou Town, Changping District, Beijing, China
| | - Qi Ma
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China
| | - Peng Yu
- Department of Orthopedic, Wuhan University of Science and Technology Hospital, Qingling Street, Hongshan District, Wuhan, China
| | - Xu Cai
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No. 168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China.
| | - Yonggang Zhou
- Department of Orthopaedic Surgery, The First Medical Centre, Chinese PLA General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
| |
Collapse
|
50
|
Abstract
During sexual reproduction in flowering plants, pollen grains germinate on the stigma surface and grow through the stigma-style tissue to reach the ovary and deliver sperm cells for fertilization. Here, we outline a method to test whether a pollen fertility mutation specifically disrupts pollen penetration through the stigma-style barrier. This method surgically removes the stigma-style (stigma decapitation) to test whether transferring pollen directly onto an exposed ovary surface significantly improves the transmission efficiency (TE) of a mutant allele. To illustrate this technique, we applied stigma decapitation to investigate a loss-of-function mutation in Arabidopsis OFT1, a gene encoding a putative o-fucosyl transferase functioning in the secretory pathway. oft1-3 mutant pollen showed a significant decrease in transmission efficiency compared to wild type. Decapitation crosses (described here) indicated that the removal of the stigma-style barrier alleviated the transmission deficiency from 858-fold to a 2.6-fold, providing evidence that most, but not all, oft1 pollen deficiencies can be attributed to a reduced ability to penetrate through the stigma-style barrier. This method outlines a genetic strategy to quantify a mutation's impact on the ability of pollen to navigate through the stigma-style barrier on its journey to the ovule.
Collapse
|