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Boyraz B, Ly A. TEMPORARY REMOVAL: Spectrum of histopathologic findings in risk-reducing bilateral prophylactic mastectomy in patients with and without BRCA mutations. Hum Pathol 2023:S0046-8177(23)00232-0. [PMID: 38000681 DOI: 10.1016/j.humpath.2023.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 10/31/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023]
Abstract
The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/policies/article-withdrawal.
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Affiliation(s)
- Baris Boyraz
- James Homer Wright Pathology Laboratories, Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Currently at Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
| | - Amy Ly
- James Homer Wright Pathology Laboratories, Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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2
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Alam MR, Seo KJ, Abdul-Ghafar J, Yim K, Lee SH, Jang HJ, Jung CK, Chong Y. Recent application of artificial intelligence on histopathologic image-based prediction of gene mutation in solid cancers. Brief Bioinform 2023; 24:bbad151. [PMID: 37114657 DOI: 10.1093/bib/bbad151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 04/29/2023] Open
Abstract
PURPOSE Evaluation of genetic mutations in cancers is important because distinct mutational profiles help determine individualized drug therapy. However, molecular analyses are not routinely performed in all cancers because they are expensive, time-consuming and not universally available. Artificial intelligence (AI) has shown the potential to determine a wide range of genetic mutations on histologic image analysis. Here, we assessed the status of mutation prediction AI models on histologic images by a systematic review. METHODS A literature search using the MEDLINE, Embase and Cochrane databases was conducted in August 2021. The articles were shortlisted by titles and abstracts. After a full-text review, publication trends, study characteristic analysis and comparison of performance metrics were performed. RESULTS Twenty-four studies were found mostly from developed countries, and their number is increasing. The major targets were gastrointestinal, genitourinary, gynecological, lung and head and neck cancers. Most studies used the Cancer Genome Atlas, with a few using an in-house dataset. The area under the curve of some of the cancer driver gene mutations in particular organs was satisfactory, such as 0.92 of BRAF in thyroid cancers and 0.79 of EGFR in lung cancers, whereas the average of all gene mutations was 0.64, which is still suboptimal. CONCLUSION AI has the potential to predict gene mutations on histologic images with appropriate caution. Further validation with larger datasets is still required before AI models can be used in clinical practice to predict gene mutations.
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Affiliation(s)
- Mohammad Rizwan Alam
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Kyung Jin Seo
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jamshid Abdul-Ghafar
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Kwangil Yim
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung Hak Lee
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hyun-Jong Jang
- Catholic Big Data Integration Center, Department of Physiology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Yosep Chong
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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de Brito Soares AL, Maia MT, Gomes SDL, da Silva TF, Vieira RS. Polysaccharide-based bioactive adsorbents for blood-contacting implant devices. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-022-00253-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Çakan D, Uşaklıoğlu S. The effect of locally administered phenytoin on wound healing in an experimental nasal septal perforation animal model. Eur Arch Otorhinolaryngol 2022; 279:3511-3517. [DOI: 10.1007/s00405-022-07276-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/17/2022] [Indexed: 01/15/2023]
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5
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Zhao W, Zhang Y, Liu L, Gao Y, Sun W, Sun Y, Ma Q. Microfluidic-based functional materials: new prospects for wound healing and beyond. J Mater Chem B 2022; 10:8357-8374. [DOI: 10.1039/d2tb01464e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Microfluidics has been applied to fabricate high-performance functional materials contributing to all physiological stages of wound healing. The advances of microfluidic-based functional materials for wound healing have been summarized.
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Affiliation(s)
- Wenbin Zhao
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Yage Zhang
- Department of Mechanical, University of Hong Kong, Hong Kong SAR, China
| | - Lijun Liu
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Yang Gao
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Wentao Sun
- School of Health and Life Sciences, University of Health and Rehabilitation Sciences, Qingdao 266113, China
| | - Yong Sun
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Qingming Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China
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Gayen P, Jan S, Chowdhury N, Ghosh S, Hembram M, Bagchi A, Sinha Roy R. Engineered Bio-inspired Multifunctional Peptide- and Protein-based Therapeutic Biomolecules for Better Wound Care. Chem Asian J 2021; 16:4018-4036. [PMID: 34643055 DOI: 10.1002/asia.202101022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/06/2021] [Indexed: 11/11/2022]
Abstract
Developing non-immunogenic therapeutic biomolecules for facilitating blood clotting followed by wound healing via therapeutic angiogenesis, still remains a formidable challenge. Excessive blood loss of accident victims and battalions cause a huge number of deaths worldwide. Patients with inherited bleeding disorders face acute complications during injury and post-surgery. Biologically-inspired peptide-based hemostat can act as a potential therapeutic for handling coagulopathy. Additionally, non-healing wounds for patients having ischemic diseases can cause severe clinical complications. Advancement in stabilized growth-factor-based proangiogenic therapy may offer effective possibilities for the treatment of ischemic pathology. This review will discuss nature-inspired biocompatible stabilized peptide- and protein-based molecular medicines to serve unmet medical challenges for handling traumatic coagulopathy and impaired wound healing.
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Affiliation(s)
- Paramita Gayen
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Somnath Jan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Nilkanta Chowdhury
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Snehasish Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Monjuri Hembram
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Angshuman Bagchi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Rituparna Sinha Roy
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
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Luo R, Dai J, Zhang J, Li Z. Accelerated Skin Wound Healing by Electrical Stimulation. Adv Healthc Mater 2021; 10:e2100557. [PMID: 33945225 DOI: 10.1002/adhm.202100557] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/06/2021] [Indexed: 01/28/2023]
Abstract
When the integrity of the skin got damaged, an endogenous electric field will be generated in the wound and a series of physiological reactions will be initiated to close the wound. The existence of the endogenous electric field of the wound has a promoting effect on all stages of wound healing. For wounds that cannot heal on their own, the exogenous electric field can assist the treatment. In this review, the effects of exogenous electrical stimulation on wound healing, such as the inflammation phase, blood flow, cell proliferation and migration, and the wound scarring is overviewed. This article also reviews the new electrical stimulation methods that have emerged in recent years, such as small power supplies, nanogenerators (NGs), and other physical, chemical or biological strategies. These new electrical stimulation methods and devices are safe, low-cost, stable, and small in size. The challenge and perspective are discussed for the future trends of the electrical stimulation treatment in accelerating skin wound healing.
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Affiliation(s)
- Ruizeng Luo
- College of Chemistry and Chemical Engineering Center of Nanoenergy Research Guangxi University Nanning 530004 China
| | - Jieyu Dai
- College of Chemistry and Chemical Engineering Center of Nanoenergy Research Guangxi University Nanning 530004 China
| | - Jiaping Zhang
- Department of Plastic Surgery State Key Laboratory of Trauma, Burns and Combined Injury Southwest Hospital Third Military Medical University (Army Medical University) Chongqing 400038 China
| | - Zhou Li
- College of Chemistry and Chemical Engineering Center of Nanoenergy Research Guangxi University Nanning 530004 China
- CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro–Nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 China
- School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 100049 China
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9
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Bobrova MM, Safonova LA, Efimov AE, Iljinsky IM, Agapova OI, Agapov II. Relation between micro- and nanostructure features and biological properties of the decellularized rat liver. Biomed Mater 2021; 16. [PMID: 34100773 DOI: 10.1088/1748-605x/ac058b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 05/26/2021] [Indexed: 12/12/2022]
Abstract
Organ decellularization is one of the promising technologies of regenerative medicine, which allows obtaining cell-free extracellular matrix (ECM), which provide preservation of the composition, architecture, vascular network and biological activity of the ECM. The method of decellularization opens up wide prospects for its practical application not only in the field of creating full-scale bioengineered structures, but also in the manufacture of vessels, microcarriers, hydrogels, and coatings. The main goal of our work was the investigation of structure and biological properties of lyophilized decellularized Wistar rat liver fragments (LDLFs), as well as we assessed the regenerative potential of the obtained ECM. We obtained decellularized liver of a Wistar rat, the vascular network and the main components of the ECM of tissue were preserved. H&E staining of histological sections confirmed the removal of cells. DNA content of ECM is equal to 0.7% of native tissue DNA content. Utilizing scanning probe nanotomogrphy method, we showed sinuous, rough topography and highly nanoporous structure of ECM, which provide high level of mouse 3T3 fibroblast and Hep-G2cells biocompatibility. Obtained LDLF had a high regenerative potential, which we studied in an experimental model of a full-thickness rat skin wound healing: we observed the acceleration of wound healing by 2.2 times in comparison with the control.
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Affiliation(s)
- Maria M Bobrova
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia
| | - Liubov A Safonova
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia
| | - Anton E Efimov
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia.,SNOTRA LLC., 121205 Moscow, Russia
| | - Igor M Iljinsky
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia
| | - Olga I Agapova
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia
| | - Igor I Agapov
- Laboratory of Bionanotechnologies, Academician V.I. Shumakov National Medical Research Center of Transplantology and Artificial Organs, Ministry of Health of the Russian Federation, 123182 Moscow, Russia
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Gao C, Zhang L, Wang J, Jin M, Tang Q, Chen Z, Cheng Y, Yang R, Zhao G. Electrospun nanofibers promote wound healing: theories, techniques, and perspectives. J Mater Chem B 2021; 9:3106-3130. [PMID: 33885618 DOI: 10.1039/d1tb00067e] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
At present, the clinical strategies for treating chronic wounds are limited, especially when it comes to pain relief and rapid wound healing. Therefore, there is an urgent need to develop alternative treatment methods. This paper provides a systematic review on recent researches on how electrospun nanofiber scaffolds promote wound healing and how the electrospinning technology has been used for fabricating multi-dimensional, multi-pore and multi-functional nanofiber scaffolds that have greatly promoted the development of wound healing dressings. First, we provide a review on the four stages of wound healing, which is followed by a discussion on the evolvement of the electrospinning technology, what is involved in electrospinning devices, and factors affecting the electrospinning process. Finally, we present the possible mechanisms of electrospun nanofibers to promote wound healing, the classification of electrospun polymers, cell infiltration favoring fiber scaffolds, antibacterial fiber scaffolds, and future multi-functional scaffolds. Although nanofiber scaffolds have made great progress as a type of multi-functional biomaterial, major challenges still remain for commercializing them in a way that fully meets the needs of patients.
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Affiliation(s)
- Chen Gao
- College of Life Sciences, Anhui Medical University, Hefei 230022, Anhui, China
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Ren Y, Li X, Wu L, Pan L, Ji Z, Shi C, Zhang X. Poly(trimethylene carbonate) flexible intestinal anastomosis scaffolds to reduce the probability of intestinal fistula and obstruction. J Mater Chem B 2021; 9:5340-5351. [PMID: 34152354 DOI: 10.1039/d1tb00759a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biodegradable anastomat play an important role in the reconstruction process of the digestive tract. However, the biocompatibility and organizational compliance of anastomotic tubes still need to be improved. Electrospun tissue engineering scaffolds have excellent biomimetic extracellular matrix properties, biocompatibility and biodegradability. In the present study, electrospun poly(trimethylene carbonate) (PTMC) intestinal anastomosis scaffolds loaded with triclosan (TCS) were reported to reduce the probability of intestinal fistula and obstruction. When the viscosity average molecular weight of PTMC was 157 × 103, the elastic modulus and tensile strength of the anastomosis scaffolds could reach 20.11 MPa and 16.08 MPa, respectively, which indicated that the anastomosis scaffolds exhibited excellent tensile flexibility. The degradation of PTMC was accelerated with the increase of Mw. After 28 days, the weight and length of the anastomosis scaffolds reduced 40% and 50%, respectively. Furthermore, the application of PTMC anastomosis scaffolds could promote intestinal healing and reduce the probability of intestinal fistula and obstruction.
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Affiliation(s)
- Yuehan Ren
- Department of Colorectal anal surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, P. R. China.
| | - Xujian Li
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Oujiang Laboratory, Wenzhou, Zhejiang 325011, China.
| | - Lei Wu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Luqi Pan
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Oujiang Laboratory, Wenzhou, Zhejiang 325011, China.
| | - Zhixiao Ji
- Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Oujiang Laboratory, Wenzhou, Zhejiang 325011, China.
| | - Changcan Shi
- Department of Colorectal anal surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, P. R. China. and Wenzhou Institute of Biomaterials and Engineering, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325011, China and Oujiang Laboratory, Wenzhou, Zhejiang 325011, China.
| | - Xiaodong Zhang
- Department of Colorectal anal surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, P. R. China.
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Allué Cabañuz M, Domingo Bretón M, Chóliz Ezquerro J, Arribas Del Amo MD, Güemes Sánchez AT. Contralateral breast cancer and tumor recurrence in BRCA1/2 carriers and non-carriers at a high risk of hereditary breast cancer after bilateral mastectomy. Cir Esp 2020; 98:612-617. [PMID: 32505558 DOI: 10.1016/j.ciresp.2020.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Contralateral prophylactic mastectomy (CPM) has been reported to reduce risk of contralateral breast cancer (CBC) by at least 90%.In addition, BRCA carriers presents higher risk of ipsilateral recurrence and a second primary tumor. The aim is to evaluate risk of CBC and recurrence and to analyze predictive factors in BRCA1/2 mutation carriers and non-carriers at high-risk of hereditary breast cancer patients. METHODS Retrospective observational study. 46 patients underwent bilateral mastectomy during 2004-2018. RESULTS Cohort comprised 9 patients BRCA1,12 BRCA2 and 25 at high-risk without mutation. Median follow-up 79 months. 16 patients recently diagnosed and 30 previously treated by breast cancer whom underwent CPM at second time (because of later detection of BRCA mutation in 10 cases). The external lateral incision was most frequent surgical technique. In all patients immediate reconstruction was performed. In CPM pieces, 4 in situ carcinoma, 3 invasive and 1 atypical hyperplasia were found. The incidence of occult contralateral cancer was 15.2%. Recurrence was observed in 5 patients a media of 21.2 months after surgery. FSD was 83.74 months and OS 84.33 months. Regression models identified BRCA1/2 mutation and high risk without mutation as significant occult tumor predictive factors while tumor size≥2cm was predictive of recurrence. CONCLUSIONS In our series we found a10.8% recurrence despite CPM and 7 patients (15.2%) would have developed a CBC in subsequent years.
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Affiliation(s)
- Marta Allué Cabañuz
- Unidad de Mama, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España.
| | - María Domingo Bretón
- Servicio de Cirugía General, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España
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Stanisz M, Panczyk M, Kurzawa R, Grochans E. The Effect of Prophylactic Adnexectomy on the Quality of Life and Psychosocial Functioning of Women with the BRCA1/BRCA2 Mutations. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16244995. [PMID: 31818005 PMCID: PMC6950418 DOI: 10.3390/ijerph16244995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/21/2022]
Abstract
The main purpose of this study was to analyze the effect of risk-reducing salpingo-oophorectomy (RRSO) on the quality of life (QoL) and psychosocial functioning of patients with the BRCA1/BRCA2 mutations. This survey-based study was conducted using the Blatt-Kupperman Index, the Women’s Health Questionnaire, the Perceived Stress Scale, the State-Trait Anxiety Inventory, the Beck Depression Inventory-II, and the authors’ questionnaire. All calculations were done using Statistica 13.3. The QoL after RRSO was statistically significantly lower in most domains compared with the state before surgery. The greatest decline in the QoL was observed in the vasomotor symptoms domain (d = 0.953) and the smallest in the memory/concentration domain (d = 0.167). We observed a statistically significant decrease in the level of anxiety as a state (d = 0.381), as well as a statistically significant increase in the severity of climacteric symptoms (d = 0.315) and depressive symptoms (d = 0.125). Prophylactic surgeries of the reproductive organs have a negative effect on the QoL and psychosocial functioning of women with the BRCA1/2 mutations, as they increase the severity of depressive and climacteric symptoms. At the same time, these surgeries reduce anxiety as a state, which may be associated with the elimination of cancerophobia.
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Affiliation(s)
- Marta Stanisz
- Department of Gynecology and Reproductive Health, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland; (M.S.); (R.K.)
| | - Mariusz Panczyk
- Department of Education and Research in Health Sciences, Medical University of Warsaw, 02-091 Warsaw, Poland;
| | - Rafał Kurzawa
- Department of Gynecology and Reproductive Health, Pomeranian Medical University in Szczecin, 71-210 Szczecin, Poland; (M.S.); (R.K.)
- Center of Gynecology and Treatmemt for Infertility “Vitrolive”, al. Wojska Polskiego 103, 70-483 Szczecin, Poland
| | - Elżbieta Grochans
- Department of Nursing, Pomeranian Medical University in Szczecin; ul. Żołnierska 48, 71-210 Szczecin, Poland
- Correspondence: ; Tel.: +48-91-4800-910
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Yoon KH, Chae S, Kang E, Shin HC, Kim JH, Kim IA, Park SY, Kim SW, Kim EK. Contralateral Breast Cancer and Ipsilateral Breast Tumor Recurrence in BRCA1/2 Carriers and Non-Carriers at High-Risk of Hereditary Breast Cancer. J Breast Cancer 2019; 22:587-598. [PMID: 31897332 PMCID: PMC6933036 DOI: 10.4048/jbc.2019.22.e47] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/11/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose We evaluated the risk of contralateral breast cancer (CBC) and ipsilateral breast tumor recurrence (IBTR) and investigated the predictive factors for CBC and IBTR in breast cancer patients with BRCA mutations and non-carriers at high-risk of hereditary breast and ovarian cancer (HBOC). Methods We analyzed prospectively collected clinical data of patients with unilateral breast cancer who were at high-risk for HBOC and were tested for the BRCA mutation between 2003 and 2013. Results The cohort comprised 540 patients with 45 BRCA1 carriers, 50 BRCA2 carriers, and 445 non-carriers. The median follow-up was 84.5 months. Overall, 61 patients (11.3%) developed CBC (24.4% for BRCA1 carriers, 20% for BRCA2 carriers, and 9% for non-carriers). The 10-year cumulative risk for CBC was 23.8% for BRCA1 carriers, 19.1% for BRCA2 carriers, and 9.8% for non-carriers (p = 0.174). Among the 277 patients who underwent breast-conserving surgery, 29 (10.5%) developed IBTR (9.1% for BRCA1 carriers, 16.7% for BRCA2 carriers, and 10.2% for non-carriers). The 10-year cumulative risk for IBTR for BRCA1 carriers, BRCA2 carriers, and non-carriers was 8.7%, 14.1%, and 20%, respectively (p = 0.577). BRCA1 (hazard ratio [HR], 2.94; 95% confidence interval [CI], 1.20-7.20; p = 0.019) and BRCA2 (HR, 2.88; 95% CI, 1.13-7.35; p = 0.027) mutations and negative estrogen receptor status (HR, 4.02; 95% CI, 1.60-10.08; p = 0.003) were the significant predictive factors for CBC, while tumor size ≥ 2 cm was predictive of IBTR (HR, 6.11; 95% CI, 2.03-18.33; p = 0.001). Conclusion While BRCA1/2 mutation carriers had a higher risk of developing CBC compared to non-carriers at high-risk of HBOC, the risk of IBTR was similarly high across breast cancer patients irrespective of the BRCA mutation. Further preventive strategies to reduce CBC and IBTR for all patients at high-risk of HBOC should be investigated.
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Affiliation(s)
- Kyung-Hwak Yoon
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sumin Chae
- Department of Surgery, Kyung Hee University Medical Center, Kyung Hee University School of Medicine, Seoul, Korea
| | - Eunyoung Kang
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Hee-Chul Shin
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Jee Hyun Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - In Ah Kim
- Department of Radiation Oncology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - So Yeon Park
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sung-Won Kim
- Department of Surgery, Daerim St. Mary's Hospital, Seoul, Korea
| | - Eun-Kyu Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Yamakawa S, Hayashida K. Advances in surgical applications of growth factors for wound healing. BURNS & TRAUMA 2019; 7:10. [PMID: 30993143 PMCID: PMC6450003 DOI: 10.1186/s41038-019-0148-1] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/13/2019] [Indexed: 12/15/2022]
Abstract
Growth factors have recently gained clinical importance for wound management. Application of recombinant growth factors has been shown to mimic cell migration, proliferation, and differentiation in vivo, allowing for external modulation of the healing process. Perioperative drug delivery systems can enhance the biological activity of these growth factors, which have a very short in vivo half-life after topical administration. Although the basic mechanisms of these growth factors are well understood, most have yet to demonstrate a significant impact in animal studies or small-sized clinical trials. In this review, we emphasized currently approved growth factor therapies, including a sustained release system for growth factors, emerging therapies, and future research possibilities combined with surgical procedures. Approaches seeking to understand wound healing at a systemic level are currently ongoing. However, further research and consideration in surgery will be needed to provide definitive confirmation of the efficacy of growth factor therapies for intractable wounds.
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Affiliation(s)
- Sho Yamakawa
- Division of Plastic and Reconstructive Surgery, Shimane University Faculty of Medicine, 89-1 Enya-cho, Izumo, Shimane 693-8501 Japan
| | - Kenji Hayashida
- Division of Plastic and Reconstructive Surgery, Shimane University Faculty of Medicine, 89-1 Enya-cho, Izumo, Shimane 693-8501 Japan
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Soliman AM, Teoh SL, Ghafar NA, Das S. Molecular Concept of Diabetic Wound Healing: Effective Role of Herbal Remedies. Mini Rev Med Chem 2019; 19:381-394. [PMID: 30360709 DOI: 10.2174/1389557518666181025155204] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/26/2017] [Accepted: 07/13/2017] [Indexed: 01/13/2023]
Abstract
The incidence of diabetes mellitus (DM) is on the rise, worldwide. One of the main complications in DM is delayed wound healing and it often requires amputation. Various drugs were used to treat DM but they presented with adverse effects. Often, patients failed to comply with such treatment. This opened the door for complementary and alternative medicine. In the present review, we explored the molecular concept of wound healing occurring in different stages with special emphasis to DM. We also highlighted the potential herbal products such as NF3 (Chinese 2-Herb Formula), Zicao, Jing Wan Hong ointment, Aleo vera, mixture of Adiantum capillus-veneris, Commiphora molmol, Aloe vera, and henna, Phenol-rich compound sweet gel, Jinchuang ointment, San-huang-sheng-fu (S) oil, Yi Bu A Jie extract, Astragali Radix (AR) and Rehmanniae Radix (RR), Yiqi Huayu, Tangzu yuyang ointment, Shengji Huayu recipe, Angelica sinensis, Lithospermun erythrorhison, Hippophae rhamnoides L., Curcuma longa and Momordica charantia that could be used effectively to treat DM wounds. Future clinical trials are needed for designing potential drugs which may be effective in treating DM wounds.
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Affiliation(s)
- Amro Mohamed Soliman
- Department of Anatomy, Faculty of Medicine, 18th Floor, Pre-Clinical Block, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif 56000, Kuala Lumpur, Malaysia
| | - Seong Lin Teoh
- Department of Anatomy, Faculty of Medicine, 18th Floor, Pre-Clinical Block, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif 56000, Kuala Lumpur, Malaysia
| | - Norzana Abd Ghafar
- Department of Anatomy, Faculty of Medicine, 18th Floor, Pre-Clinical Block, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif 56000, Kuala Lumpur, Malaysia
| | - Srijit Das
- Department of Anatomy, Faculty of Medicine, 18th Floor, Pre-Clinical Block, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif 56000, Kuala Lumpur, Malaysia
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Rezvani Ghomi E, Khalili S, Nouri Khorasani S, Esmaeely Neisiany R, Ramakrishna S. Wound dressings: Current advances and future directions. J Appl Polym Sci 2019. [DOI: 10.1002/app.47738] [Citation(s) in RCA: 226] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Erfan Rezvani Ghomi
- Department of Chemical EngineeringIsfahan University of Technology Isfahan 8415683111 Iran
| | - Shahla Khalili
- Department of Chemical EngineeringIsfahan University of Technology Isfahan 8415683111 Iran
| | - Saied Nouri Khorasani
- Department of Chemical EngineeringIsfahan University of Technology Isfahan 8415683111 Iran
| | - Rasoul Esmaeely Neisiany
- Department of Chemical EngineeringIsfahan University of Technology Isfahan 8415683111 Iran
- Division of Materials ScienceLuleå University of Technology Luleå SE‐97187 Sweden
- Center for Nanofibers and Nanotechnology, Department of Mechanical EngineeringFaculty of Engineering Singapore 117576 Singapore
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical EngineeringFaculty of Engineering Singapore 117576 Singapore
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Abstract
The ultimate tensile strength of newly apposed tissue is the sum of the strength of the physical construct holding the tissues and the strength of biologic healing. For successful incisional hernia repair, the total strength of the repair must remain greater than the forces applied. While much work has been done to understand the science of wound healing-the ability of an open defect to contract and close-far less has been done to understand the healing of 2 newly approximated previously nonwounded surfaces held together with sutures or other implants. In this article, the elements of ultimate tensile strength on laparotomy closure as well as their progression over time will be related to clinical studies of abdominal wall closure.
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Nethi SK, Das S, Patra CR, Mukherjee S. Recent advances in inorganic nanomaterials for wound-healing applications. Biomater Sci 2019; 7:2652-2674. [DOI: 10.1039/c9bm00423h] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The emergence of inorganic nanoparticles has generated considerable expectation for solving various biomedical issues including wound healing and tissue regeneration. This review article highlights the role and recent advancements of inorganic nanoparticles for wound healing and tissue regeneration along with their advantages, clinical status, challenges and future directions.
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Affiliation(s)
- Susheel Kumar Nethi
- Department of Experimental and Clinical Pharmacology
- College of Pharmacy
- University of Minnesota
- Minneapolis
- USA
| | - Sourav Das
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Chitta Ranjan Patra
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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21
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BRCA mutations and reproduction. Fertil Steril 2018; 109:33-38. [PMID: 29307397 DOI: 10.1016/j.fertnstert.2017.12.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/28/2017] [Accepted: 12/05/2017] [Indexed: 02/07/2023]
Abstract
Deleterious mutations in BRCA1 or BRCA2 genes have long been recognized as independent risk factors, mostly for breast and ovarian cancer. Numerous studies have evaluated the molecular processes involving these genes, the pathophysiology of BRCAness, follow up options and modes of prophylaxis. The fertility of BRCA carriers, however, has not been widely investigated. The aim of the present work is to review the literature pertaining to this issue.
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Devaud YR, Avilla-Royo E, Trachsel C, Grossmann J, Martin I, Lutolf MP, Ehrbar M. Label-Free Quantification Proteomics for the Identification of Mesenchymal Stromal Cell Matrisome Inside 3D Poly(Ethylene Glycol) Hydrogels. Adv Healthc Mater 2018; 7:e1800534. [PMID: 30260582 DOI: 10.1002/adhm.201800534] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/20/2018] [Indexed: 01/31/2023]
Abstract
Cells modulate the functional properties of their environment by depositing extracellular matrix (ECM) proteins during biological processes in vivo and in vitro. Despite the ECMs central role in tissue formation, its quantification in hydrogels like Matrigel, which have a complex materials-inherent biopolymer composition is exceptionally challenging. Here, the use of protein-free, synthetic poly(ethylene glycol) hydrogels enables the analysis of deposited human bone marrow mesenchymal stromal cells ECM directly harvested from fresh 3D cell cultures by a tandem mass spectrometry (LC-MS/MS) method. In this study, it is proved that a label-free LC-MS/MS quantification method can selectively identify proteins deposited in 3D synthetic hydrogels following different growth factor (GF) treatments. Furthermore, it is shown that the sequence in which GFs are administered and the choice of stimuli significantly influences the number and abundance of ECM proteins. Therefore, this provides a versatile method to optimize GF treatments in synthetic hydrogel-based regenerative medicine and tissue engineering approaches.
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Affiliation(s)
- Yannick R. Devaud
- Department of Obstetrics; University Hospital Zurich; University of Zurich; Schmelzbergstr. 12 8091 Zurich Switzerland
| | - Eva Avilla-Royo
- Department of Obstetrics; University Hospital Zurich; University of Zurich; Schmelzbergstr. 12 8091 Zurich Switzerland
- Institute for Biomechanics; Swiss Federal Institute of Technology; CH-8008 Zurich Switzerland
| | - Christian Trachsel
- Functional Genomics Center University of Zurich and ETH Zurich; Winterthurerstr. 190 8057 Zürich Switzerland
| | - Jonas Grossmann
- Functional Genomics Center University of Zurich and ETH Zurich; Winterthurerstr. 190 8057 Zürich Switzerland
| | - Ivan Martin
- Department of Biomedicine and Department of Surgery; University Hospital Basel; University of Basel; Hebelstrasse 20 4031 Basel Switzerland
| | - Matthias P. Lutolf
- Institute of Bioengineering; Ecole Polytechnique Fédérale de Lausanne (EPFL); Station 15, Bld AI 1109 1015 Lausanne Switzerland
| | - Martin Ehrbar
- Department of Obstetrics; University Hospital Zurich; University of Zurich; Schmelzbergstr. 12 8091 Zurich Switzerland
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Ibrahim Khalil A, Bendahhou K, Rhouda T, Lyahyai J, Qachach F, Zrhidri A, Natiq A, Benider A, Mestaghanmi H. Variation of exon 11 of the BRCA1 gene in patients with familial breast cancer at Mohammed VI center for treatment of cancers. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2018.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Iyer K, Chen Z, Ganapa T, Wu BM, Tawil B, Linsley CS. Keratinocyte Migration in a Three-Dimensional In Vitro Wound Healing Model Co-Cultured with Fibroblasts. Tissue Eng Regen Med 2018; 15:721-733. [PMID: 30603591 DOI: 10.1007/s13770-018-0145-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/09/2018] [Accepted: 07/12/2018] [Indexed: 10/28/2022] Open
Abstract
Background Because three-dimensional (3D) models more closely mimic native tissues, one of the goals of 3D in vitro tissue models is to aid in the development and toxicity screening of new drug therapies. In this study, a 3D skin wound healing model comprising of a collagen type I construct with fibrin-filled defects was developed. Methods Optical imaging was used to measure keratinocyte migration in the presence of fibroblasts over 7 days onto the fibrin-filled defects. Additionally, cell viability and growth of fibroblasts and keratinocytes was measured using the alamarBlue® assay and changes in the mechanical stiffness of the 3D construct was monitored using compressive indentation testing. Results Keratinocyte migration rate was significantly increased in the presence of fibroblasts with the cells reaching the center of the defect as early as day 3 in the co-culture constructs compared to day 7 for the control keratinocyte monoculture constructs. Additionally, constructs with the greatest rate of keratinocyte migration had reduced cell growth. When fibroblasts were cultured alone in the wound healing construct, there was a 1.3 to 3.4-fold increase in cell growth and a 1.2 to 1.4-fold increase in cell growth for keratinocyte monocultures. However, co-culture constructs exhibited no significant growth over 7 days. Finally, mechanical testing showed that fibroblasts and keratinocytes had varying effects on matrix stiffness with fibroblasts degrading the constructs while keratinocytes increased the construct's stiffness. Conclusion This 3D in vitro wound healing model is a step towards developing a mimetic construct that recapitulates the complex microenvironment of healing wounds and could aid in the early studies of novel therapeutics that promote migration and proliferation of epithelial cells.
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Affiliation(s)
- Kritika Iyer
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA
| | - Zhuo Chen
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA
| | - Teja Ganapa
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA
| | - Benjamin M Wu
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA.,2Division of Advanced Prosthodontics and the Weintraub Center for Reconstructive Biotechnology, School of Dentistry, University of California, Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095 USA
| | - Bill Tawil
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA
| | - Chase S Linsley
- 1Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Room 5121, Engineering V, P.O. Box 951600, Los Angeles, CA 90095-1600 USA
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Liu H, Wang C, Li C, Qin Y, Wang Z, Yang F, Li Z, Wang J. A functional chitosan-based hydrogel as a wound dressing and drug delivery system in the treatment of wound healing. RSC Adv 2018; 8:7533-7549. [PMID: 35539132 PMCID: PMC9078458 DOI: 10.1039/c7ra13510f] [Citation(s) in RCA: 433] [Impact Index Per Article: 72.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/12/2018] [Indexed: 12/18/2022] Open
Abstract
Functional active wound dressings are expected to provide a moist wound environment, offer protection from secondary infections, remove wound exudate and accelerate tissue regeneration, as well as to improve the efficiency of wound healing. Chitosan-based hydrogels are considered as ideal materials for enhancing wound healing owing to their biodegradable, biocompatible, non-toxic, antimicrobial, biologically adhesive, biological activity and hemostatic effects. Chitosan-based hydrogels have been demonstrated to promote wound healing at different wound healing stages, and also can alleviate the factors against wound healing (such as excessive inflammatory and chronic wound infection). The unique biological properties of a chitosan-based hydrogel enable it to serve as both a wound dressing and as a drug delivery system (DDS) to deliver antibacterial agents, growth factors, stem cells and so on, which could further accelerate wound healing. For various kinds of wounds, chitosan-based hydrogels are able to promote the effectiveness of wound healing by modifying or combining with other polymers, and carrying different types of active substances. In this review, we will take a close look at the application of chitosan-based hydrogels in wound dressings and DDS to enhance wound healing.
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Affiliation(s)
- He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Chenyu Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
- Hallym University 1Hallymdaehak-gil Chuncheon Gangwon-do 200-702 Korea
| | - Chen Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Yanguo Qin
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Zhonghan Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Fan Yang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Zuhao Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
| | - Jincheng Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University Changchun 130041 P. R. China
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Bopage NS, Kamal Bandara Gunaherath GM, Jayawardena KH, Wijeyaratne SC, Abeysekera AM, Somaratne S. Dual function of active constituents from bark of Ficus racemosa L in wound healing. Altern Ther Health Med 2018; 18:29. [PMID: 29370854 PMCID: PMC5785810 DOI: 10.1186/s12906-018-2089-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 01/14/2018] [Indexed: 11/10/2022]
Abstract
Background Different parts including the latex of Ficus racemosa L. has been used as a medicine for wound healing in the Ayurveda and in the indigenous system of medicine in Sri Lanka. This plant has been evaluated for its wound healing potential using animal models. The aim of this study was to obtain an insight into the wound healing process and identify the potential wound healing active substance/s present in F. racemosa L. bark using scratch wound assay (SWA) as the in-vitro assay method. Method Stem bark extracts of F. racemosa were evaluated using scratch wound assay (SWA) on Baby Hamster Kidney (BHK 21) and Madin-Darby Canine Kidney (MDCK) cell lines and Kirby Bauer disc diffusion assay on common bacteria and fungi for cell migration enhancing ability and antimicrobial activity respectively. Dichloromethane and hexanes extracts which showed cell migration enhancement activity on SWA were subjected to bioactivity directed fractionation using column chromatography followed by preparative thin layer chromatography to identify the compounds responsible for the cell migration enhancement activity. Results Dichloromethane and hexanes extracts showed cell migration enhancement activity on both cell lines, while EtOAc and MeOH extracts showed antibacterial activity against Staphylococcus and Bacillus species and antifungal activity against Saccharomyces spp. and Candida albicans. Lupeol (1) and β-sitosterol (2) were isolated as the potential wound healing active compounds which exhibited significant cell migration enhancement activity on BHK 21 and MDCK cell lines (> 80%) in par with the positive control, asiaticoside at a concentration of 25 μM. The optimum concentration of each compound required for the maximum wound healing has been determined as 30 μM and 35 μM for 1 and 2 respectively on both cell lines. It is also established that lupeol acetate (3) isolated from the hexanes extract act as a pro-drug by undergoing hydrolysis into lupeol in the vicinity of cells. Conclusion Different chemical constituents present in stem bark of Ficus racemosa L show enhancement of cell migration (which corresponds to the cell proliferation) as well as antimicrobial activity. This dual action of F. racemosa stem bark provides scientific support for its traditional use in wound healing.
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Fabrication of Hydrogel Materials for Biomedical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:197-224. [PMID: 30357691 DOI: 10.1007/978-981-13-0947-2_12] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hydrogels are three-dimensional hydrophilic polymeric networks that can be made from a wide range of natural and synthetic polymers. This review discusses recent advanced engineering methods to fabricate hydrogels for biomedical applications with emphasis in cardiac constructs and wound healing. Layer-by-Layer (LbL) assembly offers a tissue-engineered construct with robust and highly ordered structures for cell proliferation and differentiation. Three-dimensional printings, including inkjet printing, fused deposition modeling, and stereolithographic apparatus, have been widely employed to fabricate complex structures (e.g., heart valves). Moreover, the state-of-the-art design of intelligent/stimulus-responsive hydrogels can be used for a wide range of biomedical applications, including drug delivery, glucose delivery, shape memory, wound dressings, and so on. In the future, an increasing number of hydrogels with tunable mechanical properties and versatile functions will be developed for biomedical applications by employing advanced engineering techniques with novel material design.
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Laarabi FZ, Ratbi I, Elalaoui SC, Mezzouar L, Doubaj Y, Bouguenouch L, Ouldim K, Benjaafar N, Sefiani A. High frequency of the recurrent c.1310_1313delAAGA BRCA2 mutation in the North-East of Morocco and implication for hereditary breast-ovarian cancer prevention and control. BMC Res Notes 2017; 10:188. [PMID: 28577564 PMCID: PMC5457611 DOI: 10.1186/s13104-017-2511-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 05/24/2017] [Indexed: 02/04/2023] Open
Abstract
Background To date, a limited number of BRCA1/2 germline mutations have been reported in hereditary breast and/or ovarian cancer in the Moroccan population. Less than 20 different mutations of these two genes have been identified in Moroccan patients, and recently we reported a further BRCA2 mutation (c.1310_1313delAAGA; p.Lys437IlefsX22) in three unrelated patients, all from the North-East of the country. We aimed in this study to evaluate the frequency and geographic distribution of this BRCA2 frameshift mutation, in order to access its use as the first-line BRCA genetic testing strategy for Moroccan patients. We enrolled in this study 122 patients from different regions of Morocco, with suggestive inherited predisposition to breast and ovarian cancers. All subjects gave written informed consent to BRCA1/2 genetic testing. According to available resources of our lab and enrolled families, 51 patients were analyzed by the conventional individual exon-by-exon Sanger sequencing, 23 patients were able to benefit from a BRCA next generation sequencing and a target screening for exon 10 of BRCA2 gene was performed in 48 patients. Results Overall, and among the 122 patients analyzed for at least the exon 10 of the BRCA2 gene, the c.1310_1313delAAGA frameshift mutation was found in 14 patients. Genealogic investigation revealed that all carriers of this mutation shared the same geographic origin and were descendants of the North-East of Morocco. Discussion In this study, we highlighted that c.1310_1313delAAGA mutation of BRCA2 gene is recurrent with high frequency in patients from the North-East region of Morocco. Therefore, we propose to use, in public health strategies, the detection of this mutation as the first-line screening tests in patients with breast and ovarian cancer originated from this region.
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Affiliation(s)
- Fatima-Zahra Laarabi
- Centre de Génomique Humaine, Faculté de Médecine et Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco.,Département de Génétique Médicale, Institut National d'Hygiène, 27, Avenue Ibn Batouta, B.P. 769, Rabat, Morocco
| | - Ilham Ratbi
- Centre de Génomique Humaine, Faculté de Médecine et Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Siham Chafai Elalaoui
- Centre de Génomique Humaine, Faculté de Médecine et Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco.,Département de Génétique Médicale, Institut National d'Hygiène, 27, Avenue Ibn Batouta, B.P. 769, Rabat, Morocco
| | - Loubna Mezzouar
- Service de Radiothérapie, Centre d'Oncologie Hassan II, Oujda, Morocco
| | - Yassamine Doubaj
- Centre de Génomique Humaine, Faculté de Médecine et Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco.,Département de Génétique Médicale, Institut National d'Hygiène, 27, Avenue Ibn Batouta, B.P. 769, Rabat, Morocco
| | - Laila Bouguenouch
- Département de Génétique Médicale, Centre Hospitalier Universitaire Hassan II, Fès, Morocco
| | - Karim Ouldim
- Département de Génétique Médicale, Centre Hospitalier Universitaire Hassan II, Fès, Morocco
| | | | - Abdelaziz Sefiani
- Centre de Génomique Humaine, Faculté de Médecine et Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco. .,Département de Génétique Médicale, Institut National d'Hygiène, 27, Avenue Ibn Batouta, B.P. 769, Rabat, Morocco.
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Rani S, Ritter T. The Exosome - A Naturally Secreted Nanoparticle and its Application to Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5542-5552. [PMID: 26678528 DOI: 10.1002/adma.201504009] [Citation(s) in RCA: 174] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/02/2015] [Indexed: 06/05/2023]
Abstract
Wound healing is a complex process and often delayed in patients with underlying chronic conditions. The cost of wound care is a significant burden to the society, warranting new techniques to prompt wound healing. Several studies have reported on the beneficial effects of mesenchymal stem cells (MSCs) function in recruiting host cells, releasing secretory factors and matrix proteins thereby increasing wound heal. These secrete bioactive trophic factors from MSCs also includes extracellular vesicles (EVs) or exosomes. Recent studies have shown that EVs are one of the key secretory products of MSCs mediating cell-to-cell communication to enhance wound healing. Current knowledge related to the potential use of EVs in wound healing is reviewed and the promising future for EVs - a naturally secreted nanoparticle - as an alternative to cell-based therapy is discussed.
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Affiliation(s)
- Sweta Rani
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland, Galway, County Galway, Ireland
| | - Thomas Ritter
- Regenerative Medicine Institute (REMEDI), School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland, Galway, County Galway, Ireland
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Jouali F, Laarabi FZ, Marchoudi N, Ratbi I, Elalaoui SC, Rhaissi H, Fekkak J, Sefiani A. First application of next-generation sequencing in Moroccan breast/ovarian cancer families and report of a novel frameshift mutation of the BRCA1 gene. Oncol Lett 2016; 12:1192-1196. [PMID: 27446417 DOI: 10.3892/ol.2016.4739] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 05/24/2016] [Indexed: 11/05/2022] Open
Abstract
At present, breast cancer is the most common type of cancer in females. The majority of cases are sporadic, but 5-10% are due to an inherited predisposition to develop breast and ovarian cancers, which are transmitted as an autosomal dominant form with incomplete penetrance. The beneficial effects of clinical genetic testing, including next generation sequencing (NGS) for BRCA1/2 mutations, is major; in particular, it benefits the care of patients and the counseling of relatives that are at risk of breast cancer, in order to reduce breast cancer mortality. BRCA genetic testing was performed in 15 patients with breast cancer and a family with positivity for the heterozygous c.6428C>A mutation of the BRCA2 gene. Informed consent was obtained from all the subjects. Genomic DNAs were extracted and the NGS for genes was performed using the Ion Torrent Personal Genome Machine (PGM) with a 316 chip. The reads were aligned with the human reference HG19 genome to elucidate variants in the BRCA1 and BRCA2 genes. Mutations detected by the PGM platform were confirmed by target direct Sanger sequencing on a second patient DNA sample. In total, 4 BRCA variants were identified in 6 families by NGS. Of these, 3 mutations had been previously reported: c.2126insA of BRCA1, and c.1310_1313delAAGA and c.7235insG of BRCA2. The fourth variant, c.3453delT in BRCA1, has, to the best of our knowledge, never been previously reported. The present study is the first to apply NGS of the BRCA1 and BRCA2 genes to a Moroccan population, prompting additional investigation into local founder mutations and variant characteristics in the region. The variants with no clear clinical significance may present a diagnostic challenge when performing targeted resequencing. These results confirm that an NGS approach based on Ampliseq libraries and PGM sequencing is a highly efficient, speedy and high-throughput mutation detection method, which may be preferable in lower income countries.
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Affiliation(s)
- Farah Jouali
- Anoual Laboratory of Radio-Immuno Analysis, Casablanca 20360, Morocco; Laboratory of Pathophysiology and Molecular Genetics, Ben M'Sik Faculty of Science, Casablanca 7955, Morocco
| | - Fatima-Zahra Laarabi
- Department of Medical Genetics, National Institute of Health, Rabat 769, Morocco
| | - Nabila Marchoudi
- Anoual Laboratory of Radio-Immuno Analysis, Casablanca 20360, Morocco
| | - Ilham Ratbi
- Department of Medical Genetics, National Institute of Health, Rabat 769, Morocco; Human Genome Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat 8007, Morocco
| | - Siham Chafai Elalaoui
- Department of Medical Genetics, National Institute of Health, Rabat 769, Morocco; Human Genome Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat 8007, Morocco
| | - Houria Rhaissi
- Laboratory of Pathophysiology and Molecular Genetics, Ben M'Sik Faculty of Science, Casablanca 7955, Morocco
| | - Jamal Fekkak
- Anoual Laboratory of Radio-Immuno Analysis, Casablanca 20360, Morocco
| | - Abdelaziz Sefiani
- Department of Medical Genetics, National Institute of Health, Rabat 769, Morocco; Human Genome Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat 8007, Morocco
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Han BW, Layman H, Rode NA, Conway A, Schaffer DV, Boudreau NJ, Jackson WM, Healy KE. Multivalent Conjugates of Sonic Hedgehog Accelerate Diabetic Wound Healing. Tissue Eng Part A 2016; 21:2366-78. [PMID: 26154888 DOI: 10.1089/ten.tea.2014.0281] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Despite their preclinical promise, few recombinant growth factors have been fully developed into effective therapies, in part, due to the short interval of therapeutic activity after administration. To address this problem, we developed nanoscale polymer conjugates for multivalent presentation of therapeutic proteins that enhance the activation of targeted cellular responses. As an example of this technology, we conjugated multiple Sonic hedgehog (Shh) proteins onto individual hyaluronic acid biopolymers to generate multivalent protein clusters at defined ratios (i.e., valencies) that yield enhanced Shh pathway activation at equivalent concentrations relative to unconjugated Shh. In this study, we investigated whether these multivalent conjugates (mvShh) could be used to improve the therapeutic function of Shh. We found that a single treatment with mvShh significantly accelerated the closure of full-thickness wounds in diabetic (db/db) mice compared to either an equivalent dose of unconjugated Shh or the vehicle control. Furthermore, we identified specific indicators of wound healing in fibroblasts and endothelial cells (i.e., transcriptional activation and cell migration) that were activated by mvShh in vitro and at concentrations approximately an order of magnitude lower than the unconjugated Shh. Taken together, our findings suggest that mvShh conjugates exhibit greater potency to activate the Shh pathway, and this multivalency advantage improves its therapeutic effect to accelerate wound closure in a diabetic animal model. Our strategy of multivalent protein presentation using nanoscale polymer conjugates has the potential to make a significant impact on the development of protein-based therapies by improving their in vivo performance.
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Affiliation(s)
- Bruce W Han
- 1 Department of Bioengineering, University of California at Berkeley , Berkeley, California
| | - Hans Layman
- 2 Department of Surgery, University of California at San Francisco , San Francisco, California
| | - Nikhil A Rode
- 3 Department of Materials Science and Engineering, University of California at Berkeley , Berkeley, California
| | - Anthony Conway
- 4 Department of Chemical and Biomolecular Engineering, University of California at Berkeley , Berkeley, California
| | - David V Schaffer
- 1 Department of Bioengineering, University of California at Berkeley , Berkeley, California.,4 Department of Chemical and Biomolecular Engineering, University of California at Berkeley , Berkeley, California
| | - Nancy J Boudreau
- 2 Department of Surgery, University of California at San Francisco , San Francisco, California
| | - Wesley M Jackson
- 1 Department of Bioengineering, University of California at Berkeley , Berkeley, California
| | - Kevin E Healy
- 1 Department of Bioengineering, University of California at Berkeley , Berkeley, California.,3 Department of Materials Science and Engineering, University of California at Berkeley , Berkeley, California
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Thangapazham RL, Sharad S, Maheshwari RK. Phytochemicals in Wound Healing. Adv Wound Care (New Rochelle) 2016; 5:230-241. [PMID: 27134766 DOI: 10.1089/wound.2013.0505] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Significance: Traditional therapies, including the use of dietary components for wound healing and skin regeneration, are very common in Asian countries such as China and India. The increasing evidence of health-protective benefits of phytochemicals, components derived from plants is generating a lot of interest, warranting further scientific evaluation and mechanistic studies. Recent Advances: Phytochemicals are non-nutritive substances present in plants, and some of them have the potential to provide better tissue remodeling when applied on wounds and to also act as proangiogenic agents during wound healing. Critical Issues: In this review, we briefly discuss the current understanding, important molecular targets, and mechanism of action(s) of some of the phytochemicals such as curcumin, picroliv, and arnebin-1. We also broadly review the multiple pathways that these phytochemicals regulate to enhance wound repair and skin regeneration. Future Directions: Recent experimental data on the effects of phytochemicals on wound healing and skin regeneration establish the potential clinical utility of plant-based compounds. Additional research in order to better understand the exact mechanism and potential targets of phytochemicals in skin regeneration is needed. Human studies a2nd clinical trials are pivotal to fully understand the benefits of phytochemicals in wound healing and skin regeneration.
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Affiliation(s)
- Rajesh L. Thangapazham
- Department of Dermatology, Center for Prostate Disease Research; Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Shashwat Sharad
- Department of Surgery, Center for Prostate Disease Research; Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Radha K. Maheshwari
- Department of Pathology, Center for Prostate Disease Research; Uniformed Services University of the Health Sciences, Bethesda, Maryland
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Wu PY, Chang CH, Shen MR, Chou CY, Yang YC, Huang YF. Seeking new surgical predictors of mesh exposure after transvaginal mesh repair. Int Urogynecol J 2016; 27:1547-55. [PMID: 26992722 DOI: 10.1007/s00192-016-2996-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/29/2016] [Indexed: 12/26/2022]
Abstract
INTRODUCTION AND HYPOTHESIS The purpose of this study was to explore new preventable risk factors for mesh exposure. METHODS A retrospective review of 92 consecutive patients treated with transvaginal mesh (TVM) in the urogynecological unit of our university hospital. An analysis of perioperative predictors was conducted in patients after vaginal repairs using a type 1 mesh. Mesh complications were recorded according to International Urogynecological Association (IUGA) definitions. Mesh-exposure-free durations were calculated by using the Kaplan-Meier method and compared between different closure techniques using log-rank test. Hazard ratios (HR) of predictors for mesh exposure were estimated by univariate and multivariate analyses using Cox proportional hazards regression models. RESULTS The median surveillance interval was 24.1 months. Two late occurrences were found beyond 1 year post operation. No statistically significant correlation was observed between mesh exposure and concomitant hysterectomy. Exposure risks were significantly higher in patients with interrupted whole-layer closure in univariate analysis. In the multivariate analysis, hematoma [HR 5.42, 95 % confidence interval (CI) 1.26-23.35, P = 0.024), Prolift mesh (HR 5.52, 95 % CI 1.15-26.53, P = 0.033), and interrupted whole-layer closure (HR 7.02, 95 % CI 1.62-30.53, P = 0.009) were the strongest predictors of mesh exposure. CONCLUSION Findings indicate the risks of mesh exposure and reoperation may be prevented by avoiding hematoma, large amount of mesh, or interrupted whole-layer closure in TVM surgeries. If these risk factors are prevented, hysterectomy may not be a relative contraindication for TVM use. We also provide evidence regarding mesh exposure and the necessity for more than 1 year of follow-up and preoperative counselling.
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Affiliation(s)
- Pei-Ying Wu
- Department of Obstetrics & Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Chih-Hung Chang
- Department of Urology, St. Joseph Hospital, Kaohsiung, Taiwan
| | - Meng-Ru Shen
- Department of Obstetrics & Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Cheng-Yang Chou
- Department of Obstetrics & Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan
| | - Yi-Ching Yang
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Fang Huang
- Department of Obstetrics & Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 70403, Taiwan.
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Wound Healing Concepts in Clinical Practice of OMFS. J Maxillofac Oral Surg 2016; 16:403-423. [PMID: 29038623 DOI: 10.1007/s12663-016-0880-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/05/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Wound healing is a complex and dynamic process and a thorough knowledge of the basics of physiology of wound healing is a must to implement principles of chronic wound care. Understanding wound healing at multiple levels-biochemical, physiologic, cellular and molecular provides the surgeon with a framework for basing clinical decisions aimed at optimizing the healing response. OBJECTIVE This review article describes the classification of wounds and aims to highlight the fundamentals of wound repair, enumerating the dressings used commonly and also, the newer concepts of wound healing. MATERIALS AND METHODS Search engines and medical databases were tapped to gather information on the subject. Search words employed were "Wounds", "wounds in OSMF", "Wound healing", "Repair", "Dressings in OMFS". RESULTS The search resulted in total of 153 articles which we reviewed to add to the literature the concepts of wound healing and to throw some light on recent advances in wound care. CONCLUSIONS Wound healing remains a challenging clinical problem and correct, efficient wound management is essential to positively influence the wound healing course and reduce potential complications.
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Zhu Z, Ding J, Tredget EE. The molecular basis of hypertrophic scars. BURNS & TRAUMA 2016; 4:2. [PMID: 27574672 PMCID: PMC4963951 DOI: 10.1186/s41038-015-0026-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 12/30/2015] [Indexed: 02/05/2023]
Abstract
Hypertrophic scars (HTS) are caused by dermal injuries such as trauma and burns to the deep dermis, which are red, raised, itchy and painful. They can cause cosmetic disfigurement or contractures if craniofacial areas or mobile region of the skin are affected. Abnormal wound healing with more extracellular matrix deposition than degradation will result in HTS formation. This review will introduce the physiology of wound healing, dermal HTS formation, treatment and difference with keloids in the skin, and it also review the current advance of molecular basis of HTS including the involvement of cytokines, growth factors, and macrophages via chemokine pathway, to bring insights for future prevention and treatment of HTS.
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Affiliation(s)
- Zhensen Zhu
- Wound Healing Research Group, Division of Plastic and Reconstructive Surgery, University of Alberta, Edmonton, Alberta Canada
- Department of Burn and Reconstructive Surgery, 2nd Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong China
| | - Jie Ding
- Wound Healing Research Group, Division of Plastic and Reconstructive Surgery, University of Alberta, Edmonton, Alberta Canada
| | - Edward E. Tredget
- Wound Healing Research Group, Division of Plastic and Reconstructive Surgery, University of Alberta, Edmonton, Alberta Canada
- Division of Plastic Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta Canada
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Kandhare AD, Alam J, Patil MVK, Sinha A, Bodhankar SL. Wound healing potential of naringin ointment formulation via regulating the expression of inflammatory, apoptotic and growth mediators in experimental rats. PHARMACEUTICAL BIOLOGY 2016; 54:419-32. [PMID: 25894211 DOI: 10.3109/13880209.2015.1038755] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
CONTEXT Wound healing is a consequence of a complex process involving inflammatory, proliferative, and remodeling phases. Naringin, a flavanone glycoside, is associated with modulation of various oxido-inflammatory and growth factors. AIM The aim of this study is to evaluate the wound-healing activity of naringin ointment formulation (NOF) on experimental wound models. MATERIALS AND METHODS A soft paraffin-based cream containing 1, 2, and 4% (w/w) naringin was formulated and evaluated for physicochemical characters. Excision wounds and incisions wounds were used to study the topical effect of NOF for 20 d (once a day) on various biochemical, molecular, and histological parameters. RESULTS NOF (2 and 4%, w/w) treatment showed a significant decrease (p < 0.05) in wound area and epithelization period whereas the rate of wound contraction increased significantly (p < 0.05). The altered levels of oxido-nitrosative stress (SOD, GSH, MDA, MPO, and NO) were significantly (p < 0.05) restored by NOF. Treatment produced a significant increase (p < 0.05) in tensile strength, hydroxyproline content, and protein content. TNF-α, IL-1β, IL-6, IL-8, NF-κB, smad-7, and Bax mRNA expression were significantly down-regulated (p < 0.05) by NOF, whereas polymerase gamma (pol-γ), smad-3, VEGF and TGF-β, and collagen-1 mRNA expressions were significantly up-regulated (p < 0.05) by NOF. Histological alterations in wound skin were also restored by NOF. CONCLUSION NOF exerts wound healing potential via down-regulated expression of inflammatory (NF-κB, TNF-α, and ILs), apoptotic (pol-γ and Bax), and up-regulated growth factor (VEGF and TGF-β) expression, thus modulating collagen-1 expression to induce angiogenesis leading to wound healing.
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Affiliation(s)
- Amit D Kandhare
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Javed Alam
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Mithun V K Patil
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Akanksha Sinha
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
| | - Subhash L Bodhankar
- a Department of Pharmacology , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , Maharashtra , India
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Dhivya S, Padma VV, Santhini E. Wound dressings - a review. Biomedicine (Taipei) 2015; 5:22. [PMID: 26615539 PMCID: PMC4662938 DOI: 10.7603/s40681-015-0022-9] [Citation(s) in RCA: 666] [Impact Index Per Article: 74.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/29/2015] [Indexed: 12/11/2022] Open
Abstract
Wound healing is a dynamic and complex process which requires suitable environment to promote healing process. With the advancement in technology, more than 3000 products have been developed to treat different types of wounds by targeting various aspects of healing process. The present review traces the history of dressings from its earliest inception to the current status and also discusses the advantage and limitations of the dressing materials.
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Affiliation(s)
- Selvaraj Dhivya
- Centre of Excellence for Medical Textiles, The South India Textile Research Association, 641014, Tamil Nadu, Coimbatore, India
- Department of Biotechnology, Bharathiar University, 641044, Tamil Nadu, Coimbatore, India
| | | | - Elango Santhini
- Centre of Excellence for Medical Textiles, The South India Textile Research Association, 641014, Tamil Nadu, Coimbatore, India.
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38
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Strom CM, Rivera S, Elzinga C, Angeloni T, Rosenthal SH, Goos-Root D, Siaw M, Platt J, Braastadt C, Cheng L, Ross D, Sun W. Development and Validation of a Next-Generation Sequencing Assay for BRCA1 and BRCA2 Variants for the Clinical Laboratory. PLoS One 2015; 10:e0136419. [PMID: 26295337 PMCID: PMC4546651 DOI: 10.1371/journal.pone.0136419] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 08/04/2015] [Indexed: 11/30/2022] Open
Abstract
The objective of this study was to design and validate a next-generation sequencing assay (NGS) to detect BRCA1 and BRCA2 mutations. We developed an assay using random shearing of genomic DNA followed by RNA bait tile hybridization and NGS sequencing on both the Illumina MiSeq and Ion Personal Gene Machine (PGM). We determined that the MiSeq Reporter software supplied with the instrument could not detect deletions greater than 9 base pairs. Therefore, we developed an alternative alignment and variant calling software, Quest Sequencing Analysis Pipeline (QSAP), that was capable of detecting large deletions and insertions. In validation studies, we used DNA from 27 stem cell lines, all with known deleterious BRCA1 or BRCA2 mutations, and DNA from 67 consented control individuals who had a total of 352 benign variants. Both the MiSeq/QSAP combination and PGM/Torrent Suite combination had 100% sensitivity for the 379 known variants in the validation series. However, the PGM/Torrent Suite combination had a lower intra- and inter-assay precision of 96.2% and 96.7%, respectively when compared to the MiSeq/QSAP combination of 100% and 99.4%, respectively. All PGM/Torrent Suite inconsistencies were false-positive variant assignments. We began commercial testing using both platforms and in the first 521 clinical samples MiSeq/QSAP had 100% sensitivity for BRCA1/2 variants, including a 64-bp deletion and a 10-bp insertion not identified by PGM/Torrent Suite, which also suffered from a high false-positive rate. Neither the MiSeq nor PGM platform with their supplied alignment and variant calling software are appropriate for a clinical laboratory BRCA sequencing test. We have developed an NGS BRCA1/2 sequencing assay, MiSeq/QSAP, with 100% analytic sensitivity and specificity in the validation set consisting of 379 variants. The MiSeq/QSAP combination has sufficient performance for use in a clinical laboratory.
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Affiliation(s)
- Charles M Strom
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Steven Rivera
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | | | - Taraneh Angeloni
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Sun Hee Rosenthal
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Dana Goos-Root
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Martin Siaw
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Jamie Platt
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - Cory Braastadt
- Athena / Quest Diagnostics, Marlborough, MA, United States of America
| | - Linda Cheng
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
| | - David Ross
- Celera / Quest Diagnostics, Alameda, CA, United States of America
| | - Weimin Sun
- Department of Genetics, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, United States of America
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Gebrehiwot M, Asres K, Bisrat D, Mazumder A, Lindemann P, Bucar F. Evaluation of the wound healing property of Commiphora guidottii Chiov. ex. Guid. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:282. [PMID: 26283230 PMCID: PMC4538748 DOI: 10.1186/s12906-015-0813-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 08/10/2015] [Indexed: 12/02/2022]
Abstract
Background The traditional use of the oleo-gum-resin of Commiphora guidottii Chiov. ex. Guid., which is commonly called scented myrrh, for topical treatment of wound is well documented. The major objective of the present study was to investigate the essential oil and resin obtained from C. guidottii for their potential wound healing properties. Due to their influence on the wound healing process, the anti-inflammatory and antimicrobial activities of scented myrrh have also been investigated. Methods Powdered oleo-gum-resin of C. guidottii was steam-distilled to obtain essential oil, and the resin was extracted from the marc with MeOH and filtered. The TLC fingerprint profile of the resin has been recorded by using silica gel GF254 as stationary phase. The essential oil components were identified and quantified by GC-MS. Ointments prepared from the essential oil (4 % v/w) and the resin (5 % w/w) were used for wound healing activity tests. Toxicity of the formulated ointments was investigated according to Draize skin irritation test. Acute anti-inflammatory effect in mice was evaluated using carrageenan induced mouse hind paw oedema model. Antimicrobial activity tests were carried out using disk diffusion and broth dilution techniques against 21 pathogenic bacterial and 4 fungal strains. Results Ointment formulations of both the oil and resin were found to be non-irritant at the concentrations used and showed significant (p < 0.05-0.001) increase in wound contraction rate, shorter epithelization time and higher skin breaking strength as compared to the negative control. Overall, the antibacterial and antifungal activities of the oil and resin were comparable with the standard antibiotics ciprofloxacin and griseofulvin, respectively. Conclusion The results confirm that scented myrrh possesses genuine wound healing activity supporting the traditional use of the plant.
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Turner CT, Waters JM, Jackson JE, Arkell RM, Cowin AJ. Fibroblast-specific upregulation of Flightless I impairs wound healing. Exp Dermatol 2015; 24:692-7. [DOI: 10.1111/exd.12751] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Christopher T. Turner
- Regenerative Medicine; Mawson Institute; University of South Australia; Adelaide SA Australia
| | - James M. Waters
- Regenerative Medicine; Mawson Institute; University of South Australia; Adelaide SA Australia
| | - Jessica E. Jackson
- Regenerative Medicine; Mawson Institute; University of South Australia; Adelaide SA Australia
| | - Ruth M. Arkell
- Research School of Biological Sciences; Australian National University; Canberra ACT Australia
| | - Allison J. Cowin
- Regenerative Medicine; Mawson Institute; University of South Australia; Adelaide SA Australia
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Shabbir A, Cox A, Rodriguez-Menocal L, Salgado M, Van Badiavas E. Mesenchymal Stem Cell Exosomes Induce Proliferation and Migration of Normal and Chronic Wound Fibroblasts, and Enhance Angiogenesis In Vitro. Stem Cells Dev 2015; 24:1635-47. [PMID: 25867197 DOI: 10.1089/scd.2014.0316] [Citation(s) in RCA: 430] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Although chronic wounds are common and continue to be a major cause of morbidity and mortality, treatments for these conditions are lacking and often ineffective. A large body of evidence exists demonstrating the therapeutic potential of mesenchymal stem cells (MSCs) for repair and regeneration of damaged tissue, including acceleration of cutaneous wound healing. However, the exact mechanisms of wound healing mediated by MSCs are unclear. In this study, we examined the role of MSC exosomes in wound healing. We found that MSC exosomes ranged from 30 to 100-nm in diameter and internalization of MSC exosomes resulted in a dose-dependent enhancement of proliferation and migration of fibroblasts derived from normal donors and chronic wound patients. Uptake of MSC exosomes by human umbilical vein endothelial cells also resulted in dose-dependent increases of tube formation by endothelial cells. MSC exosomes were found to activate several signaling pathways important in wound healing (Akt, ERK, and STAT3) and induce the expression of a number of growth factors [hepatocyte growth factor (HGF), insulin-like growth factor-1 (IGF1), nerve growth factor (NGF), and stromal-derived growth factor-1 (SDF1)]. These findings represent a promising opportunity to gain insight into how MSCs may mediate wound healing.
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Affiliation(s)
- Arsalan Shabbir
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Audrey Cox
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Luis Rodriguez-Menocal
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Marcela Salgado
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Evangelos Van Badiavas
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
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Abstract
African American women have a lower lifetime incidence of breast cancer than white/Caucasian Americans yet have a higher risk of breast cancer mortality. African American women are also more likely to be diagnosed with breast cancer at young ages, and they have higher risk for the biologically more aggressive triple-negative breast cancers. These features are also more common among women from western, sub-Saharan Africa who share ancestry with African Americans, and this prompts questions regarding an association between African ancestry and inherited susceptibility for certain patterns of mammary carcinogenesis.
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Affiliation(s)
- Lisa A Newman
- Breast Care Center, University of Michigan Comprehensive Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48167, USA.
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Kim HS, Lee SW, Choi YJ, Shin SW, Kim YH, Cho MS, Lee SN, Park KH. Novel Germline Mutation of BRCA1 Gene in a 56-Year-Old Woman with Breast Cancer, Ovarian Cancer, and Diffuse Large B-Cell Lymphoma. Cancer Res Treat 2014; 47:534-8. [PMID: 25483746 PMCID: PMC4506095 DOI: 10.4143/crt.2013.151] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/05/2013] [Indexed: 11/21/2022] Open
Abstract
We report a case of a 56-year-old woman with breast cancer, ovarian cancer, and diffuse large B-cell lymphoma with a BRCA1 gene mutation. Evidence is mounting that there is a large increase in the risk for hematologic malignancies among patients with genetic changes in the BRCA pathways. The genomic analysis demonstrated a frameshift mutation in the BRCA1 gene: 277_279delinsCC (Phe93fs). It is a novel BRCA1 mutation that has never been reported, and caused malignant lymphoma as well as breast and ovarian cancer.
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Affiliation(s)
- Hye Sook Kim
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Soon Wook Lee
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yoon Ji Choi
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sang Won Shin
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yeul Hong Kim
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Min Sun Cho
- Department of Pathology, Ewha Womans University School of Medicine, Seoul, Korea
| | - Soon Nam Lee
- Division of Hematology-Oncology, Department of Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Kyong Hwa Park
- Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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Yu JH, Lee JW, Son BH, Kim SW, Park SK, Lee MH, Kim LS, Noh WC, Kim EK, Yoon DS, Lee J, Jung JH, Jung SS, Gong G, Ahn SH. Characteristics of BRCA1/2 Mutation-Positive Breast Cancers in Korea: A Comparison Study Based on Multicenter Data and the Korean Breast Cancer Registry. J Breast Cancer 2014; 17:129-35. [PMID: 25013433 PMCID: PMC4090314 DOI: 10.4048/jbc.2014.17.2.129] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 05/14/2014] [Indexed: 12/19/2022] Open
Abstract
Purpose Mutations in BRCA genes are the main cause of hereditary breast cancer in Korea. The aim of this study was to investigate the characteristics of breast cancers involving BRCA1 (BRCA1 group) and BRCA2 (BRCA2 group) mutations. Methods We retrospectively reviewed the medical records of patients with BRCA1 (BRCA1 group) or BRCA2 (BRCA2 group) mutation positive breast cancer from multiple centers and compared the data to that of the Korean Breast Cancer Society registry (registry group). Results The patients of the BRCA1 group were diagnosed at a younger age (median age, 37 years) and had tumors of higher histological (61.3% with histological grade 3) and nuclear (37.5% with nuclear grade 3) grade than those of the registry group. In addition, the frequency of ductal carcinoma in situ in the BRCA1 group was lower (3.7%) than in the registry group, and the BRCA1 group were more likely to be triple-negative breast cancer (61.3%). Patients in the BRCA2 group were also younger at diagnosis (mean age, 41 years) and were more likely to have involvement of the axillary node than the registry group (45.5% vs. 33.5%, p=0.002). The BRCA1 and BRCA2 groups did not show a correlation between tumor size and axillary node involvement. Conclusion We report the characteristics of BRCA mutation positive breast cancer patients in the Korean population through multicenter data and nation-wide breast cancer registry study. However, BRCA-mutated breast cancers appear highly complex, and further research on their molecular basis is needed in Korea.
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Affiliation(s)
- Jong-Han Yu
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong Won Lee
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Byung Ho Son
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Won Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Min Hyuk Lee
- Department of Surgery, Soonchunhyang University Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Lee Su Kim
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Woo-Chul Noh
- Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological & Medical Science, Seoul, Korea
| | - Eun-Kyu Kim
- Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological & Medical Science, Seoul, Korea
| | - Dae Sung Yoon
- Department of Surgery, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
| | - Jeeyeon Lee
- Department of Surgery, Medical Research Institute, Pusan National University Hospital, Pusan, Korea
| | - Jin Hyang Jung
- Department of Surgery, Kyungpook National University Hospital, Kyungpook National University College of Medicine, Daegu, Korea
| | - Sang Seol Jung
- Department of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Gyungyup Gong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sei-Hyun Ahn
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Paraguassú GM, Xavier FCA, Cangussu MCT, Ramalho MJP, Cury PR, dos Santos JN, Pinheiro ALB, Ramalho LMP. Effect of Laser Phototherapy (λ660 nm) on Type I and III Collagen Expression During Wound Healing in Hypothyroid Rats: An Immunohistochemical Study in a Rodent Model. Photomed Laser Surg 2014; 32:281-8. [DOI: 10.1089/pho.2013.3604] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Gardênia Matos Paraguassú
- Department of Propedeutics and Dental Clinic, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Flávia Calo Aquino Xavier
- Department of Propedeutics and Dental Clinic, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | | | - Patrícia Ramos Cury
- Department of Periodontics, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Jean Nunes dos Santos
- Department of Propedeutics and Dental Clinic, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | - Luciana Maria Pedreira Ramalho
- Department of Propedeutics and Dental Clinic, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
- Center of Biophotonics, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
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Waycaster C, Milne CT. Clinical and economic benefit of enzymatic debridement of pressure ulcers compared to autolytic debridement with a hydrogel dressing. J Med Econ 2013; 16:976-86. [PMID: 23701261 DOI: 10.3111/13696998.2013.807268] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the cost-effectiveness of enzymatic debridement using collagenase relative to autolytic debridement with a hydrogel dressing for the treatment of pressure ulcers. METHODS A 3-stage Markov model was used to determine the expected costs and outcomes of wound care for collagenase and hydrogel dressings. Outcome data used in the analysis were taken from a randomized clinical trial that directly compared collagenase and hydrogel dressings. The primary outcome in the clinical trial was the proportion of patients achieving a closed epithelialized wound. Transition probabilities for the Markov states were estimated from the clinical trial. A 1-year time horizon was used to determine the expected number of closed wound days and the expected costs for the two alternative debridement therapies. Resource utilization was based on the wound care treatment regimen used in the clinical trial. Resource costs were derived from standard cost references and medical supply wholesalers. The economic perspective taken was that of the long-term care facility. No cost discounting was performed due to the short time horizon of the analysis. A deterministic sensitivity analysis was conducted to analyze economic uncertainty. RESULTS The number of expected wound days for the collagenase and hydrogel cohorts are estimated at 48 and 147, respectively. The expected direct cost per patient for pressure ulcer care was $2003 for collagenase and $5480 for hydrogel debridement. The number of closed wound days was 1.5-times higher for collagenase (317 vs 218 days) than with the hydrogel. The estimated cost/closed wound day was 4-times higher for the hydrogel ($25) vs collagenase ($6). CONCLUSIONS In this Markov model based on a randomized trial of pressure ulcer care in a long-term care setting collagenase debridement was economically dominant over autolytic debridement, yielding better outcomes at a lower total cost. Since it was a single institution study with a small sample size, the results should be interpreted with caution. Specifically, the findings may not necessarily be generalized to other hydrogel dressings, healthcare settings, age groups, or to wounds of other etiologies.
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Mahmood U, Hanlon AL, Koshy M, Buras R, Chumsri S, Tkaczuk KH, Cheston SB, Regine WF, Feigenberg SJ. Increasing national mastectomy rates for the treatment of early stage breast cancer. Ann Surg Oncol 2012; 20:1436-43. [PMID: 23135312 DOI: 10.1245/s10434-012-2732-5] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Indexed: 11/18/2022]
Abstract
BACKGROUND To study national trends in the mastectomy rate for treatment of early stage breast cancer. METHODS We analyzed data from the Surveillance, Epidemiology, and End Results database, including 256,081 women diagnosed with T1-2 N0-3 M0 breast cancer from 2000 to 2008. We evaluated therapeutic mastectomy rates by the year of diagnosis and performed a multivariable logistic regression analyses to determine predictors of mastectomy as the treatment choice. RESULTS The proportion of women treated with mastectomy decreased from 40.1 to 35.6 % between 2000 and 2005. Subsequently, the mastectomy rate increased to 38.4 % in 2008 (p < 0.0001). Simple logistic regression models demonstrated that mastectomy rates between 2005 and 2008 were moderated by age (p < 0.0001), marital status (p = 0.0230), and geographic location (p < 0.0001). Multivariate logistic regression analysis found that age, race, marital status, geographic location, involvement of multiple regions of the breast, lobular histology, increasing T stage, lymph node positivity, increasing grade, and negative hormone receptor status were independent predictors of mastectomy. Additionally, multivariate analysis confirmed that women diagnosed in 2008 were more likely to undergo mastectomy than women diagnosed in 2005 (odds ratio 1.17, 95 % confidence interval 1.13 to 1.21, p < 0.0001). CONCLUSIONS There is evidence of a reversal in the previously declining national mastectomy rates, with the mastectomy rate reaching a nadir in 2005 and subsequently rising. Further follow-up to confirm this trend and investigation to determine the underlying cause of this trend and its effect on outcomes may be warranted.
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Affiliation(s)
- Usama Mahmood
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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Common healthcare challenges. PLASMA MEDICINE 2012. [DOI: 10.1017/cbo9780511902598.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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August EM, Quinn GP, Perales R, Closser Z, Dutil J, Puig M, Vadaparampil ST. Important considerations for recruiting women to cancer genetics studies in Puerto Rico. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2012; 27:105-11. [PMID: 21866412 PMCID: PMC4528373 DOI: 10.1007/s13187-011-0265-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A goal of the Minority Institution/Cancer Center Partnership between the Ponce School of Medicine in Puerto Rico and the H. Lee Moffitt Cancer Center & Research Institute in Florida is to provide cross-cultural training in cancer research. This is achieved through a collaborative summer exchange program, which provides US students with an opportunity to conduct research in Puerto Rico. As part of this program, students recruited participants and collected data for a study to enhance the understanding of sociocultural factors among Puerto Rican women regarding genetic testing for hereditary breast/ovarian cancer. Limited studies have examined cancer genetics issues among Latinos, particularly those specific to the various Latino subgroups, such as Puerto Ricans. As a result of the student training experience, culturally appropriate strategies for the recruitment of women in Puerto Rico have been identified. These recommendations can inform the design of cancer research projects and interventions targeting the Puerto Rican population.
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Affiliation(s)
- Euna M August
- Health Outcomes & Behavior Program, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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