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Lin HL, Zheng QQ, Huang RL, Hu R, Liu XD, Wang JY. Exploration of treatment in childhood Langerhans cell histiocytosis based on inflammatory and malignant symptoms: a pilot study. Orphanet J Rare Dis 2024; 19:174. [PMID: 38654381 DOI: 10.1186/s13023-024-03151-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 03/24/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Multisystem childhood Langerhans cell histiocytosis (LCH) patients, especially those with risk organ (RO) involved, had not been satisfactorily treated under the international traditional schemes as high incidences of reactivation with late sequelae were largely reported. Over years, we have observed that LCH patients with varied clinical symptoms responded differently to different drugs, suggesting the current grouping strategies based only on the number of organs involved might be inadequate. LCH has been defined as an inflammatory myeloid tumor, thus this study has innovatively divided LCH pediatric patients into inflammatory or malignant symptoms group, and given different intensity treatment regimens to different groups. AIM This clinical study aimed to explore a more appropriate patient grouping system according to the LCH symptom presentations and examine the clinical outcomes of treatment strategies in different groups. METHODS According to the clinical manifestations, 37 cases of children were divided into Group A (only inflammatory symptoms) and Group B (malignant symptoms with or without inflammatory symptoms). Patients in Group A and B were initially treated with vindesine (VDS) and methylprednisolone (PSL), and VDS, PSL, pirarubicin (THP) and cyclophosphamide (CTX), respectively. Treatment responses were evaluated six weeks after the induction therapy in all patients, and the criteria were disease status and clinical scores of symptoms. RESULTS Pre- and post-treatment scores were 1.22 ± 0.547 and 0.00 ± 0.00 in Group A, and 14.79 ± 1.686 and 1.00 ± 1.563 in Group B, respectively. All patients had subsequentlly received maintenance therapy without progressive disease. The 4-year overall survival (OS) rate was 100% in both groups and the 4-year event-free survival (EFS) was 94.4% in Group A and 89.5% in Group B, respectively. There were no obvious adverse events (AE) in Group A, whereas the main AE in Group B were alopecia and non-lethal hematological toxicity. CONCLUSION Stratification according to patients' clinical symptoms, with low-intensity treatment for inflammatory symptoms (mild manifestations) and intensive treatment with multiple drugs for malignant symptoms (severe manifestations), is a positive exploration that simplifies stratification method, achieves good long-term remission of the disease, and obtains a higher survival rate and quality of life, which seemed to be more appropriate for LCH patients.
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Affiliation(s)
- Hui-Ling Lin
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510600, China
| | - Qing-Qing Zheng
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510600, China
| | - Ru-Lin Huang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510600, China
| | - Rong Hu
- Department of Pharmacy, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510600, China
| | - Xiao-Dan Liu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510600, China
| | - Jia-Yi Wang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Tianhe District, Guangzhou, 510600, China.
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Xie F, Qin J, Fang B, Zhou S, Huang RL, Li Q, Fu R, Xie Y. Novel strategies in scalp expansion: improvements and applications of tissue expanders. Burns Trauma 2024; 12:tkae002. [PMID: 38596624 PMCID: PMC11002457 DOI: 10.1093/burnst/tkae002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 04/11/2024]
Affiliation(s)
- Fangzhou Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Jiaqi Qin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Bin Fang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Shuangbai Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
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Yan Y, Ji Q, Yang J, Yin X, Liu S, Karalkin PA, Reshetov IV, Han D, Li Q, Huang RL. Bioengineering autologous cartilage grafts for functional posterior lamellar eyelid reconstruction: A preliminary study in rabbits. Acta Biomater 2024:S1742-7061(24)00162-4. [PMID: 38561072 DOI: 10.1016/j.actbio.2024.03.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/12/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024]
Abstract
The reconstruction of posterior lamellar eyelid defects remains a significant challenge in clinical practice due to anatomical complexity, specialized function, and aesthetic concerns. The ideal substitute for the posterior lamellar should replicate the native tarsoconjunctival tissue, providing both mechanical support for the eyelids and a smooth surface for the globe after implantation. In this study, we present an innovative approach utilizing tissue-engineered cartilage (TEC) grafts generated from rabbit auricular chondrocytes and a commercialized type I collagen sponge to reconstruct critical-sized posterior lamellar defects in rabbits. The TEC grafts demonstrated remarkable mechanical strength and maintained a stable cartilaginous phenotype both in vitro and at 6 months post-implantation in immunodeficient mice. When employed as autografts to reconstruct tarsal plate defects in rabbits' upper eyelids, these TEC grafts successfully restored normal eyelid morphology, facilitated smooth eyelid movement, and preserved the histological structure of the conjunctival epithelium. When applied in bilayered tarsoconjunctival defect reconstruction, these TEC grafts not only maintained the normal contour of the upper eyelid but also supported conjunctival epithelial cell migration and growth from the defect margin towards the centre. These findings highlight that auricular chondrocyte-based TEC grafts hold great promise as potential candidates for clinical posterior lamellar reconstruction. STATEMENT OF SIGNIFICANCE: The complex structure and function of the posterior lamellar eyelid continue to be significant challenges for clinical reconstructive surgeries. In this study, we utilized autologous auricular chondrocyte-based TEC grafts for posterior lamellar eyelid reconstruction in a preclinical rabbit model. The TEC grafts exhibited native cartilaginous histomorphology and comparable mechanical strength to those of the native human tarsal plate. In rabbit models with either tarsal plate defects alone or bilayered tarsoconjunctival defects, TEC grafts successfully restored the normal eyelid contour and movement, as well as supported preservation and growth of conjunctival epithelium. This is the first study to demonstrate autologous TEC grafts can be employed for repairing tarsal plate defects, thereby offering an alternative therapeutic approach for treating posterior lamellar defects in clinic settings.
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Affiliation(s)
- Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China
| | - Qiumei Ji
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China
| | - Xiya Yin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China; Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shengnan Liu
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Pavel A Karalkin
- Institute of Cluster Oncology, Sechenov First Moscow State Medical University, Moscow 127473, Russia
| | - Igor V Reshetov
- Institute of Cluster Oncology, Sechenov First Moscow State Medical University, Moscow 127473, Russia
| | - Dong Han
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China.
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai 200011, China.
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Yang J, Yan Y, Yin X, Liu X, Reshetov IV, Karalkin PA, Li Q, Huang RL. Bioengineering and vascularization strategies for islet organoids: advancing toward diabetes therapy. Metabolism 2024; 152:155786. [PMID: 38211697 DOI: 10.1016/j.metabol.2024.155786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024]
Abstract
Diabetes presents a pressing healthcare crisis, necessitating innovative solutions. Organoid technologies have rapidly advanced, leading to the emergence of bioengineering islet organoids as an unlimited source of insulin-producing cells for treating insulin-dependent diabetes. This advancement surpasses the need for cadaveric islet transplantation. However, clinical translation of this approach faces two major limitations: immature endocrine function and the absence of a perfusable vasculature compared to primary human islets. In this review, we summarize the latest developments in bioengineering functional islet organoids in vitro and promoting vascularization of organoid grafts before and after transplantation. We highlight the crucial roles of the vasculature in ensuring long-term survival, maturation, and functionality of islet organoids. Additionally, we discuss key considerations that must be addressed before clinical translation of islet organoid-based therapy, including functional immaturity, undesired heterogeneity, and potential tumorigenic risks.
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Affiliation(s)
- Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China
| | - Xiya Yin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China; Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, China
| | - Xiangqi Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China
| | - Igor V Reshetov
- Institute of Cluster Oncology, Sechenov First Moscow State Medical University, 127473 Moscow, Russia
| | - Pavel A Karalkin
- Institute of Cluster Oncology, Sechenov First Moscow State Medical University, 127473 Moscow, Russia
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China.
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China; Shanghai Institute for Plastic and Reconstructive Surgery, China.
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Liu X, Yang J, Yan Y, Li Q, Huang RL. Unleashing the potential of adipose organoids: A revolutionary approach to combat obesity-related metabolic diseases. Theranostics 2024; 14:2075-2098. [PMID: 38505622 PMCID: PMC10945346 DOI: 10.7150/thno.93919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/15/2024] [Indexed: 03/21/2024] Open
Abstract
Obesity-related metabolic diseases, including obesity, diabetes, hyperlipidemia, and non-alcoholic fatty liver diseases pose a significant threat to health. However, comprehensive pathogenesis exploration and effective therapy development are impeded by the limited availability of human models. Notably, advances in organoid technology enable the generation of adipose organoids that recapitulate structures and functions of native human adipose tissues to investigate mechanisms and develop corresponding treatments for obesity-related metabolic diseases. Here, we review the general principles, sources, and three-dimensional techniques for engineering adipose organoids, along with strategies to promote maturation. We also outline the application of white adipose organoids, primarily for disease modeling and drug screening, and highlight the therapeutic potential of thermogenic beige and brown adipose organoids in promoting weight loss and glucose and lipid metabolic homeostasis. We also discuss the challenges and prospects in the establishment and bench-to-bedside of adipose organoids, as well as their potential applications.
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Affiliation(s)
- Xingran Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai, China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute for Plastic and Reconstructive Surgery, Shanghai, China
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Huang RL, Li Q, Ma JX, Atala A, Zhang Y. Body fluid-derived stem cells - an untapped stem cell source in genitourinary regeneration. Nat Rev Urol 2023; 20:739-761. [PMID: 37414959 DOI: 10.1038/s41585-023-00787-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2023] [Indexed: 07/08/2023]
Abstract
Somatic stem cells have been obtained from solid organs and tissues, including the bone marrow, placenta, corneal stroma, periosteum, adipose tissue, dental pulp and skeletal muscle. These solid tissue-derived stem cells are often used for tissue repair, disease modelling and new drug development. In the past two decades, stem cells have also been identified in various body fluids, including urine, peripheral blood, umbilical cord blood, amniotic fluid, synovial fluid, breastmilk and menstrual blood. These body fluid-derived stem cells (BFSCs) have stemness properties comparable to those of other adult stem cells and, similarly to tissue-derived stem cells, show cell surface markers, multi-differentiation potential and immunomodulatory effects. However, BFSCs are more easily accessible through non-invasive or minimally invasive approaches than solid tissue-derived stem cells and can be isolated without enzymatic tissue digestion. Additionally, BFSCs have shown good versatility in repairing genitourinary abnormalities in preclinical models through direct differentiation or paracrine mechanisms such as pro-angiogenic, anti-apoptotic, antifibrotic, anti-oxidant and anti-inflammatory effects. However, optimization of protocols is needed to improve the efficacy and safety of BFSC therapy before therapeutic translation.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian-Xing Ma
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Anthony Atala
- Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Yuanyuan Zhang
- Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA.
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Wei J, Baptista-Hon DT, Wang Z, Li G, Herrler T, Dai C, Liu K, Yu B, Chen X, Yang M, Han D, Gao Y, Huang RL, Guo L, Zhang K, Li Q. Bioengineered human tissue regeneration and repair using endogenous stem cells. Cell Rep Med 2023; 4:101156. [PMID: 37586324 PMCID: PMC10439273 DOI: 10.1016/j.xcrm.2023.101156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 04/30/2023] [Accepted: 07/19/2023] [Indexed: 08/18/2023]
Abstract
We describe a general approach to produce bone and cartilaginous structures utilizing the self-regenerative capacity of the intercostal rib space to treat a deformed metacarpophalangeal joint and microtia. Anatomically precise 3D molds were positioned on the perichondro-periosteal or perichondral flap of the intercostal rib without any other exogenous elements. We find anatomically precise metacarpal head and auricle constructs within the implanted molds after 6 months. The regenerated metacarpal head was used successfully to surgically repair the deformed metacarpophalangeal joint. Auricle reconstructive surgery in five unilateral microtia patients yielded good aesthetic and functional results. Long-term follow-up revealed the auricle constructs were safe and stable. Single-cell RNA sequencing analysis reveal early infiltration of a cell population consistent with mesenchymal stem cells, followed by IL-8-stimulated differentiation into chondrocytes. Our results demonstrate the repair and regeneration of tissues using only endogenous factors and a viable treatment strategy for bone and tissue structural defects.
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Affiliation(s)
- Jiao Wei
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Daniel T Baptista-Hon
- University Hospital and Center for Biomedicine and Innovations, Faculty of Medicine, Macau University of Science and Technology, Taipa 999078, Macau, China; Zhuhai International Eye Center, Zhuhai People's Hospital and the First Affiliated Hospital of Faculty of Medicine, Macau University of Technology, Zhuhai, Guangdong, China; Department of Bioinformatics and AI, Guangzhou Laboratory, Guangzhou, China; School of Medicine, University of Dundee, Dundee, UK
| | - Zi Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Gen Li
- Department of Bioinformatics and AI, Guangzhou Laboratory, Guangzhou, China; Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Tanja Herrler
- Department of Hand Surgery, Trauma Center Murnau, 82418 Murnau, Germany
| | - Chuanchang Dai
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Baofu Yu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Xiaoxue Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Mei Yang
- Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Dong Han
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yuanxu Gao
- University Hospital and Center for Biomedicine and Innovations, Faculty of Medicine, Macau University of Science and Technology, Taipa 999078, Macau, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Lifei Guo
- Division of Plastic Surgery, Lahey Hospital and Medical Center, Burlington, VT 01808, USA.
| | - Kang Zhang
- University Hospital and Center for Biomedicine and Innovations, Faculty of Medicine, Macau University of Science and Technology, Taipa 999078, Macau, China; Zhuhai International Eye Center, Zhuhai People's Hospital and the First Affiliated Hospital of Faculty of Medicine, Macau University of Technology, Zhuhai, Guangdong, China; Department of Bioinformatics and AI, Guangzhou Laboratory, Guangzhou, China.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
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Tan PC, Zhang PQ, Zhou SB, He J, Qian J, Huang RL, Zhang ZY, Cheng C, Li Q, Xie Y. Autologous Concentrated Growth Factor Increases Skin Thickness and Area during Tissue Expansion: A Randomized Clinical Trial. Plast Reconstr Surg 2023; 152:281e-292e. [PMID: 36727707 PMCID: PMC10368219 DOI: 10.1097/prs.0000000000010227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 08/18/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Mechanical stretching of the skin (ie, tissue expansion) could generate additional skin, but it is limited by the intrinsic growth capacity. The authors conducted a study of autologous concentrated growth factor (CGF) to promote skin regeneration by increasing skin thickness and area during tissue expansion. METHODS A single-center randomized controlled trial was conducted from 2016 to 2019. Participants undergoing skin expansion received either CGF or saline by means of intradermal injection on the expanded skin (0.02 mL/cm 2 ), for a total of three treatments at 4-week intervals. The primary endpoint was the expanded skin thickness at 12 weeks, which was measured by ultrasound. The secondary endpoints included skin thickness at 4 and 8 weeks and surface area, expansion index, and skin texture score of the expanded skin at 12 weeks. Safety assessments, for infection symptoms and nodule formation, were assessed at 24 weeks. RESULTS In total, 26 patients were enrolled and assigned to the CGF or control group. Compared with the control group, the CGF group had significantly increased skin thickness at 8 (control, 1.1 ± 0.1 mm; CGF, 1.4 ± 0.1 mm; -0.6 to 0.0 mm; P = 0.047) and 12 weeks (control, 1.0 ± 0.1 mm; CGF, 1.3 ± 0.1 mm; -0.6 to 0.0 mm; P = 0.047). Compared with the baseline thickness (control, 1.6 ± 0.1 mm; CGF, 1.5 ± 0.1 mm; -0.3 to 0.5 mm; P = 0.987), skin thickness was sustained in the CGF group at 8 weeks after treatment (-0.1 to 0.3 mm; P = 0.711) but decreased in the control group (0.3 to 0.7 mm; P < 0.001). At 12 weeks, the CGF group showed greater increases in surface area (control, 77.7 ± 18.5 cm 2 ; CGF, 135.0 ± 15.7 cm 2 ; 7.2 cm 2 to 107.4 cm 2 ; P = 0.027) and expansion index (control, 0.9 ± 0.1; CGF, 1.4 ± 0.2; 0.0 to 0.8; P = 0.030) than the control group. In addition, CGF-treated skin showed an improvement in texture [CGF: grade 3, n = 2 (15.8%), grade 2, n = 4 (30.7%); control: grade 3, n = 0 (0.0%), grade 2, n = 3 (23.0%)]. No severe adverse events occurred. CONCLUSION CGF treatment increases skin thickness and area during tissue expansion, and represents a safe and effective strategy for managing skin expansion. CLINICAL RELEVANCE STATEMENT The findings of this study indicate that it is practically feasible to improve skin regeneration by applying autologous platelet concentrate therapy for skin expansion management. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, II.
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Affiliation(s)
- Poh-Ching Tan
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Pei-Qi Zhang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Shuang-Bai Zhou
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Jizhou He
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Jia Qian
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Ru-Lin Huang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Zhi-Yue Zhang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Chen Cheng
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Qingfeng Li
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yun Xie
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
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Tan PC, Zhang PQ, Zhou SB, He J, Qian J, Huang RL, Zhang ZY, Cheng C, Li Q, Xie Y. Racial Disparities in the Cost of Unplanned Hospitalizations after Breast Reconstruction. Plast Reconstr Surg 2023; 152:281-290. [PMID: 36728197 PMCID: PMC10368219 DOI: 10.1097/prs.0000000000010200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 08/18/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND Given the national attention to disparities in health care, understanding variation provided to minorities becomes increasingly important. This study will examine the effect of race on the rate and cost of unplanned hospitalizations after breast reconstruction procedures. METHODS The authors performed an analysis comparing patients undergoing implant-based and autologous breast reconstruction in the Healthcare Cost and Utilization Project. The authors evaluated the rate of unplanned hospitalizations and associated expenditures among patients of different races. Multivariable analyses were performed to determine the association among race and readmissions and health care expenditures. RESULTS The cohort included 17,042 patients. The rate of an unplanned visit was 5%. The rates of readmissions among black patients (6%) and Hispanic patients (7%) in this study are higher compared with white patients (5%). However, after controlling for patient-level characteristics, race was not an independent predictor of an unplanned visit. In our expenditure model, black patients [adjusted cost ratio, 1.35 (95% CI, 1.11 to 1.66)] and Hispanic patients [adjusted cost ratio, 1.34 (95% CI, 1.08 to 1.65)] experienced greater cost for their readmission compared with white patients. CONCLUSIONS Although race is not an independent predictor of an unplanned hospital visit after surgery, racial minorities bear a higher cost burden after controlling for insurance status, further stimulating health care disparities. Adjusted payment models may be a strategy to reduce disparities in surgical care. In addition, direct and indirect measures of disparities should be used when examining health care disparities to identify consequences of inequities more robustly.
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Affiliation(s)
- Poh-Ching Tan
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Pei-Qi Zhang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Shuang-Bai Zhou
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Jizhou He
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Jia Qian
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Ru-Lin Huang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Zhi-Yue Zhang
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Chen Cheng
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Qingfeng Li
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yun Xie
- From the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine
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10
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Chang C, Guo W, Yu X, Guo C, Zhou N, Guo X, Huang RL, Li Q, Zhu Y. Engineered M13 phage as a novel therapeutic bionanomaterial for clinical applications: From tissue regeneration to cancer therapy. Mater Today Bio 2023; 20:100612. [PMID: 37063776 PMCID: PMC10102448 DOI: 10.1016/j.mtbio.2023.100612] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
Bacteriophages (phages) are nanostructured viruses with highly selective antibacterial properties that have gained attention beyond eliminating bacteria. Specifically, M13 phages are filamentous phages that have recently been studied in various aspects of nanomedicine due to their biological advantages and more compliant engineering capabilities over other phages. Having nanofiber-like morphology, M13 phages can reach varied target sites and self-assemble into multidimensional scaffolds in a relatively safe and stable way. In addition, genetic modification of the coat proteins enables specific display of peptides and antibodies on the phages, allowing for precise and individualized medicine. M13 phages have also been subjected to novel engineering approaches, including phage-based bionanomaterial engineering and phage-directed nanomaterial combinations that enhance the bionanomaterial properties of M13 phages. In view of these features, researchers have been able to utilize M13 phages for therapeutic applications such as drug delivery, biodetection, tissue regeneration, and targeted cancer therapy. In particular, M13 phages have been utilized as a novel bionanomaterial for precisely mimicking natural tissue environment in order to overcome the shortage in tissue and organ donors. Hence, in this review, we address the recent studies and advances of using M13 phages in the field of nanomedicine as therapeutic agents based upon their characteristics as novel bionanomaterial with biomolecules displayed. This paper also emphasizes the novel engineering approach that enhances M13 phage's bionanomaterial capabilities. Current limitations and future approaches are also discussed to provide insight in further progress for M13 phage-based clinical applications.
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Affiliation(s)
- Cheng Chang
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
| | - Wennan Guo
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
| | - Xinbo Yu
- Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201999, China
| | - Chaoyi Guo
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
| | - Nan Zhou
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
| | - Xiaokui Guo
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- Corresponding author.
| | - Qingtian Li
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Corresponding author.
| | - Yongzhang Zhu
- School of Global Health, Chinese Centre for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 200025, China
- Corresponding author.
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11
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Yang J, Hu X, Li Q, Huang RL. Botulinum Toxin Type A Injection for Correction of Upper Eyelid Retraction in Thyroid-Associated Ophthalmopathy. J Craniofac Surg 2023:00001665-990000000-00726. [PMID: 37221639 DOI: 10.1097/scs.0000000000009347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 01/09/2023] [Indexed: 05/25/2023] Open
Abstract
Upper lid retraction (ULR) is the most common and earliest symptom in thyroid-associated ophthalmopathy (TAO) patients. Surgical correction is effective for ULR in stable diseases. However, non-invasive treatment is also required for the TAO patient in active phase. Here, we reported a complex case with TAO and unilateral ULR simultaneously. The patient had a history of progressive ptosis in the left eyelid and underwent anterior levator aponeurotic-Muller muscle resection to correct the ptosis. However, the patient gradually developed bilateral proptosis and ULR, mainly in the left eyelid. The patient was finally diagnosed with TAO with left ULR. Then, the patient was treated with botulinum toxin type A (BTX-A) injection in the left eyelid. The effect of BTX-A treatment started 7 days after injection, peaked at one month, and lasted for approximately 3 months. This study highlighted the therapeutic effect of BTX-A injection for the treatment of ULR-related TAO.
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Affiliation(s)
- Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
| | - Xiuyu Hu
- Department of Plastic Surgery, People's Hospital of Zhaoyuan City
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
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12
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Yan Y, Fu R, Ji Q, Liu C, Yang J, Yin X, Oranges CM, Li Q, Huang RL. Surgical Strategies for Eyelid Defect Reconstruction: A Review on Principles and Techniques. Ophthalmol Ther 2022; 11:1383-1408. [PMID: 35690707 PMCID: PMC9253217 DOI: 10.1007/s40123-022-00533-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/23/2022] [Indexed: 02/08/2023] Open
Abstract
Reconstruction of eyelid defects, especially the posterior lamella, remains challenging because of its anatomical complexity, functional considerations, and aesthetic concerns. The goals of eyelid reconstruction include restoring eyelid structure and function and achieving an aesthetically acceptable appearance. An in-depth understanding of the complex eyelid anatomy and several reconstructive principles are mandatory to achieve these goals. Currently, there are multiple surgical treatment options for eyelid reconstruction, including different flaps, grafts, and combinations of them. This comprehensive review outlines the principles of reconstruction and discusses the indications, advantages, and disadvantages of currently available surgical techniques. We also propose our clinical thinking for solving specific clinical questions in eyelid reconstruction and offer perspectives on new potential methodologies in the future.
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Affiliation(s)
- Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Qiumei Ji
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Chuanqi Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Xiya Yin
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.,Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Carlo M Oranges
- Department of Plastic, Reconstructive, and Aesthetic Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
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13
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Huang RL, Liu C, Fu R, Yan Y, Yang J, Wang X, Li Q. Downregulation of PLK4 expression induces apoptosis and G0/G1-phase cell cycle arrest in keloid fibroblasts. Cell Prolif 2022; 55:e13271. [PMID: 35670224 PMCID: PMC9251049 DOI: 10.1111/cpr.13271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 02/05/2023] Open
Abstract
Objectives Keloids are benign fibroproliferative tumors that display many cancer‐like characteristics, such as progressive uncontrolled growth, lack of spontaneous regression, and extremely high rates of recurrence. Polo‐like kinase 4 (PLK4) was recently identified as a master regulator of centriole replication, and its aberrant expression is closely associated with tumorigenesis. This study aimed to investigate the expression and biological role of PLK4 in the pathogenesis of keloids. Materials and Methods We evaluated the expression of PLK4 in keloids and adjacent normal skin tissue samples. Then, we established PLK4 knockdown and overexpression cell lines in keloid fibroblasts (KFs) and normal skin fibroblasts (NFs), respectively, to investigate the roles of PLK4 in the regulation of proliferation, migration, invasion, apoptosis, and cell cycle in KFs. Centrinone B (Cen‐B), a highly selective PLK4 inhibitor, was used to inhibit PLK4 activity in KFs to evaluate the therapeutic effect on KFs. Results We discovered that PLK4 was overexpressed in keloid dermal samples and KFs compared with adjacent normal skin samples and NFs derived from the same patients. High PLK4 expression was positively associated with the proliferation, migration, and invasion of KFs. Furthermore, knockdown of PLK4 expression or inhibition of PLK4 activity by Cen‐B suppressed KF growth, induced KF apoptosis via the caspase‐9/3 pathway, and induced cell cycle arrest at the G0/G1 phase in vitro. Conclusions These findings demonstrate that PLK4 is a critical regulator of KF proliferation, migration, and invasion, and thus, Cen‐B is a promising candidate drug for keloid treatment.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Yang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xinggang Wang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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14
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Yan Y, Fu R, Liu C, Yang J, Li Q, Huang RL. Sequential Enzymatic Digestion of Different Cartilage Tissues: A Rapid and High-Efficiency Protocol for Chondrocyte Isolation, and Its Application in Cartilage Tissue Engineering. Cartilage 2021; 13:1064S-1076S. [PMID: 34775800 PMCID: PMC8804790 DOI: 10.1177/19476035211057242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE The classic chondrocyte isolation protocol is a 1-step enzymatic digestion protocol in which cartilage samples are digested in collagenase solution for a single, long period. However, this method usually results in incomplete cartilage dissociation and low chondrocyte quality. In this study, we aimed to develop a rapid, high-efficiency, and flexible chondrocyte isolation protocol for cartilage tissue engineering. DESIGN Cartilage tissues harvested from rabbit ear, rib, septum, and articulation were minced and subjected to enzymatic digestion using the classic protocol or the newly developed sequential protocol. In the classic protocol, cartilage fragments were subjected to one 12-hour digestion. In the sequential protocol, cartilage fragments were sequentially subjected to 2-hour first digestion, followed by two 3-hour digestions. The collected cells were then subjected to analyses of cell-yield efficiency, viability, proliferation, phenotype, and cartilage matrix synthesis capacity. RESULTS Overall, the sequential protocol exhibited higher cell-yield efficiency than the classic protocol for the 4 cartilage types. The cells harvested from the second and third digestions demonstrated higher cell viability, more proliferative activity, a better chondrocyte phenotype, and a higher cartilage-specific matrix synthesis ability than those harvested from the first digestion and after the classic 1-step protocol. CONCLUSIONS The sequential protocol is a rapid, flexible, high-efficiency chondrocyte isolation protocol for different cartilage tissues. We recommend using this protocol for chondrocyte isolation, and in particular, the cells obtained after the subsequent 3-hour sequential digestions should be used for chondrocyte-based therapy.
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Affiliation(s)
- Yuxin Yan
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China
| | - Rao Fu
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China,Department of Plastic and Burn Surgery,
West China Hospital, Sichuan University, Shanghai, China
| | - Jing Yang
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, Shanghai, China,Qingfeng Li, Department of Plastic and
Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong
University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China.
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15
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Lin WC, Qin Y, Chun X, Huang RL, Chen RS, Zhang D. Perioperative Care of Children with Acute Exogenous Lipoid Pneumonia Submitted to BAL/FB. Int J Gen Med 2021; 14:8383-8388. [PMID: 34819746 PMCID: PMC8608239 DOI: 10.2147/ijgm.s339118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/22/2021] [Indexed: 11/23/2022] Open
Abstract
Objective The present study evaluates the psychosocial care and the bronchoalveolar lavage (BAL)/fiberoptic bronchoscopy (FB) procedure in children with pediatric acute exogenous lipoid pneumonia (ELP) and summarizes the critical points of nursing. Methods Data on the psychosocial factors of the patients and clinical information were collected. Participants comprised 41 children within three years of age. Results All the children were cooperative with the BAL/FB procedure. The children’s pain scores were between 4–6, and the psychological conditions of the children and caregivers were nervous/anxious upon admission. After the medical staff’s psychological care and health education, the children’s postoperative pain scores were reduced to 0–3, and the psychological state of the caregivers was positive. Conclusion Psychological care can alleviate families’ adverse emotions and promote treatment cooperation and recovery from the acute ELP.
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Affiliation(s)
- Wen-Chun Lin
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yi Qin
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xiao Chun
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Ru-Lin Huang
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Rong-Shan Chen
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Dongwei Zhang
- Department of Respiratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
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16
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Cheng C, Fang B, Xie Y, Zhao PJ, Huang RL, Zhou SB, Gu B, Herrler T, Liu K, Li QF. Autologous fat transfer rescues expanded skin from expansion failure: A retrospective cohort study in Asians. J Plast Reconstr Aesthet Surg 2021; 75:1094-1099. [PMID: 34903491 DOI: 10.1016/j.bjps.2021.11.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/22/2021] [Accepted: 11/08/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Soft tissue expansion is a common technique for the regeneration of extra skin to repair skin defects. However, some warning signs like skin thinning and telangiectasia are often found during the expansion process, which indicates the skin flaps cannot be further expanded. These signs may result in the suspension of expansion or ultimately jeopardize the final outcome. Fat grafting is used to treat these potential complications and enable the continuation of the expansion procedure in some cases. In this study, we aimed to investigate the efficiency and safety of fat grafting in this process. METHODS The study was conducted on patients from January 2012 to December 2017 with warning signs of expansion treated with fat grafting (treatment group) or pause expansion (control group). Follow-up data, such as expansion status, dermal thickness, telangiectasia, skin texture using volume assessment, B-mode ultrasound, and semiquantitative scoring, were collected. RESULTS A total of 67 expanded skin regions with warning signs were enrolled. The expansion fold increased 2.14-fold at 12 weeks after treatment compared with 0.74-fold in control (P=0.02). The semiquantitative score was significant improved at 4 weeks (9.03 ± 0.73 vs. 7.45 ± 0.55; p=0.033). Meanwhile, the skin thickness in the experimental group did not show decreasing trend even in the continued expansion process. CONCLUSIONS Autologous fat grafting represents an effective and safe method to rescue expanded skin from limited skin regeneration. This technique also represents a valuable tool to increase the chances for further expansion.
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Affiliation(s)
- Chen Cheng
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Fang
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun Xie
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Pei-Juan Zhao
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuang-Bai Zhou
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Gu
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tanja Herrler
- Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany
| | - Kai Liu
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing-Feng Li
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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17
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Lee YX, Tzeng CR, Hu YM, Chen CH, Chen CW, Liao CC, Chen LY, Weng YC, Wang HC, Huang RL, Lai HC. P–522 Cervical secretion methylation profile is associated with the success of frozen-thawed embryo transfer - a proof-of-concept study. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Is cervical secretion gene methylation profile different between receptive and non-receptive endometrium and associated with implantation outcome in frozen-embryo transfer (FET) cycle?
Summary answer
The combination of candidate genes methylation profiles obtained from cervical secretion showed significant associations with pregnancy outcomes.
What is known already
Implantation failure remains a black box in reproductive medicine, and the exact mechanism of how endometrial receptivity is regulated is still unknown. Epigenetic modifications play a role in the gene expression pattern and may alter the endometrial receptivity in the human endometrium. Cervical secretion containing various implantation-related cytokines, and the gene methylation change can be used as a non-invasive molecular source that reflects the endometrium condition.
Study design, size, duration
In this retrospective case-control study, sixty-two women who entered the FET cycle (30 pregnant and 32 non-pregnant women) were enrolled.
Participants/materials, setting, methods
Cervical secretion was collected before embryo transfer from women enrolled in multicenter university-affiliated reproductive units. The DNA methylation status of six candidate genes was measured using quantitative methylation-specific PCR (qMSP). The correlation between methylation change and the pregnancy outcome was analyzed.
Main results and the role of chance
The candidate genes were selected from that associated with implantation with literature review and the original genome-wide DNA methylation data from NCBI GEO DataSets (GSE90060) which processed using bioinformatics analysis. Six candidate genes whose CpG-level methylation analysis with β-value statistically higher in receptive endometrium than in a pre-receptive endometrium were selected. All six candidate genes showed different degrees of correlation with the pregnancy outcomes. Among them, PRKAG2 methylation changes showed the highest correlation with the pregnancy outcome. A logistic regression model was used to evaluate the performance of a single gene or a combination of genes for implantation prediction. The results showed a statistically significant association between the methylation status of a combination of genes (PRKAG2, KRS1, HAND2) and the pregnancy outcome (p = 0.008), resulting in an optimal AUC of 0.7 (95% CI: 0.57 - 0.81) for implantation prediction.
Limitations, reasons for caution
The results obtained from a relatively small cohort size. A larger study and further comprehensive methylome investigations are warranted.
Wider implications of the findings: This study is the first proof-of-concept study that cervical secretion methylation profile is associated with implantation outcome in a FET cycle, and showed potential as a non-invasive method for implantation prediction.
Trial registration number
non applicable
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Affiliation(s)
- Y X Lee
- Taipei Medical University, Graduate Institute of Clinical Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
| | - C R Tzeng
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
| | - Y M Hu
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
| | - C H Chen
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Taipei Medical University Hospital, Division of Reproductive Medicine- Department of Obstetrics and Gynecology-, Taipei, Taiwan R.O.C
| | - C W Chen
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - C C Liao
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - L Y Chen
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - Y C Weng
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
| | - H C Wang
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
| | - R L Huang
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - H C Lai
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
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Li J, Sang C, Fu R, Liu C, Suo L, Yan Y, Liu K, Huang RL. Long-Term Complications from Diced Cartilage in Rhinoplasty: A Meta-analysis. Facial Plast Surg Aesthet Med 2021; 24:221-227. [PMID: 34357798 DOI: 10.1089/fpsam.2021.0002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Objective: To analyze the incidences of long-term complications and revision surgery associated with diced cartilage grafts in dorsal augmentation rhinoplasty. Methods: The PubMed, MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases were searched for clinical studies on the use of diced cartilage for dorsal augmentation published. A meta-analysis was conducted to pool the estimated rates of infection, overcorrection, visible irregularity, absorption, and revision surgery. Result: A total of 14 studies involving 2380 patients were included in the systematic review. The combined rates were 11.5% for overall complications and 5.3% for revision surgery. The rates of the most frequently reported complications were 4.5% for infection, 5.3% for visible irregularity, 0.7% for overcorrection, and 0.5% for absorption. There was no significant difference in the rates of visible irregularity (p = 0.23) and revision surgery (p = 0.71) among the wrapped diced cartilage, glued diced cartilage, and free diced cartilage groups. Conclusion: This meta-analysis presents the first comprehensive and quantitative report of long-term complications associated with diced cartilage in dorsal augmentation rhinoplasty. Infection and visible irregularity were the most frequently reported complications. The rates of irregularity and revision surgery were not correlated with the diced cartilage packing methods.
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Affiliation(s)
- Jiaqi Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Chen Sang
- Department of Plastic and Burn Surgery, Zhucheng People's Hospital, Shanghai, China
| | - Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Linlang Suo
- Department of Surgery, Shanghai Eighth People's Hospital, Shanghai, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Fu R, Liu C, Yan Y, Suo L, Xie Y, Li Q, Huang RL. Tranexamic Acid in Craniomaxillofacial Surgery: A Meta-Analysis and Systematic Review. Facial Plast Surg Aesthet Med 2021; 23:422-429. [PMID: 33661026 DOI: 10.1089/fpsam.2020.0590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Objective: To compare the effectiveness of tranexamic acid (TXA) in reducing blood loss and decreasing surgery duration in craniomaxillofacial surgery. Methods: The literature was searched systematically for all comparative studies of the effect of TXA on craniomaxillofacial surgery with placebo to evaluate the efficacy of TXA in craniomaxillofacial surgery. The primary outcome was intraoperative blood loss, and secondary outcomes were postoperative hematocrit, postoperative hemoglobin, and operation duration. Results: This systematic review included 16 studies consisting of 958 patients. Meta-analysis revealed that compared with the placebo group, the TXA group showed a significant reduction in intraoperative blood loss of 139.81 mL (95% confidence interval, CI: -179.66 to -99.96 mL; p < 0.01), a shortening of the maxillary surgery duration of 15.48 min (95% CI: -21.03 to -9.92 min; p < 0.01), an elevation of the postoperative hemoglobin level of 0.74 mg/dL (95% CI: 0.42 to 1.07 mg/dL; p < 0.01), and a limited effect on increasing the postoperative hematocrit level of 1.77% (95% CI: 0.17 to 3.36; p = 0.03). Conclusion: The use of TXA in craniomaxillofacial surgery can effectively reduce intraoperative blood loss, maintain elevate postoperative hemoglobin and hematocrit levels, and reduce the operation duration.
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Affiliation(s)
- Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linlang Suo
- Department of Surgery, Shanghai Eighth People's Hospital, Shanghai, China
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Fu R, Liu C, Yan Y, Li Q, Huang RL. Bone defect reconstruction via endochondral ossification: A developmental engineering strategy. J Tissue Eng 2021; 12:20417314211004211. [PMID: 33868628 PMCID: PMC8020769 DOI: 10.1177/20417314211004211] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/05/2023] Open
Abstract
Traditional bone tissue engineering (BTE) strategies induce direct bone-like matrix formation by mimicking the embryological process of intramembranous ossification. However, the clinical translation of these clinical strategies for bone repair is hampered by limited vascularization and poor bone regeneration after implantation in vivo. An alternative strategy for overcoming these drawbacks is engineering cartilaginous constructs by recapitulating the embryonic processes of endochondral ossification (ECO); these constructs have shown a unique ability to survive under hypoxic conditions as well as induce neovascularization and ossification. Such developmentally engineered constructs can act as transient biomimetic templates to facilitate bone regeneration in critical-sized defects. This review introduces the concept and mechanism of developmental BTE, explores the routes of endochondral bone graft engineering, highlights the current state of the art in large bone defect reconstruction via ECO-based strategies, and offers perspectives on the challenges and future directions of translating current knowledge from the bench to the bedside.
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Affiliation(s)
- Rao Fu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chuanqi Liu
- Department of Plastic and Burn Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yuxin Yan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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21
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Zou ZW, Huang RL, Yu JL. [Integrated access by page-turning approach for laparoscopic-assisted right radical hemicolectomy]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:503-506. [PMID: 32842432 DOI: 10.3760/cma.j.cn.441530-20190123-00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Xie Y, Fang B, Liu W, Li G, Huang RL, Zhang L, He J, Zhou S, Liu K, Li Q. Transcriptome differences in adipose stromal cells derived from pre- and postmenopausal women. Stem Cell Res Ther 2020; 11:92. [PMID: 32111240 PMCID: PMC7049195 DOI: 10.1186/s13287-020-01613-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/02/2020] [Accepted: 02/19/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND As the population ages, an increasing number of postmenopausal women are donors of adipose stromal cells (ASCs) and may benefit from autologous ASC-related treatments. However, the effect of menopausal status on ASCs has not been investigated. METHODS RNA sequencing data were downloaded, and differentially expressed genes (DEGs) were identified. Hierarchical clustering, Gene Ontology, and pathway analyses were applied to the DEGs. Two gene coexpression network analysis approaches were applied to the DEGs to provide a holistic view and preserve gene interactions. Hub genes of the gene coexpression network were identified, and their expression profiles were examined with clinical samples. ASCs from pre- and postmenopausal women were co-cultured with monocytes and T cells to determine their immunoregulatory role. RESULTS In total, 2299 DEGs were identified and presented distinct expression profiles between pre- and postmenopausal women. Gene Ontology and pathway analyses revealed some fertility-, sex hormone-, immune-, aging-, and angiogenesis-related terms and pathways. Gene coexpression networks were constructed, and the top hub genes, including TIE1, ANGPT2, RNASE1, PLVAP, CA2, and MPZL2, were consistent between the two approaches. Expression profiles of hub genes from the RNA sequencing data and clinical samples were consistent. ASCs from postmenopausal women elicit M1 polarization, while their counterparts facilitate CD3/4+ T cell proliferation. CONCLUSIONS The present study reveals the transcriptome differences in ASCs derived from pre- and postmenopausal women and provides holistic views by preserving gene interactions via gene coexpression network analysis. The top hub genes identified by this study could serve as potential targets to enhance the therapeutic potential of ASCs.
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Affiliation(s)
- Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Bin Fang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Wenhui Liu
- Plastic & Reconstructive Surgery of the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Zhengzhou, 450052, China.
| | - Guangshuai Li
- Plastic & Reconstructive Surgery of the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Zhengzhou, 450052, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Lu Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Jiahao He
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Shuangbai Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
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Huang RL, Xie Y, Wang W, Tan P, Li Q. Long-term Outcomes of Temporal Hollowing Augmentation by Targeted Volume Restoration of Fat Compartments in Chinese Adults. JAMA FACIAL PLAST SU 2019; 20:387-393. [PMID: 29710230 DOI: 10.1001/jamafacial.2018.0165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Importance Previous anatomical and clinical studies have suggested that targeted restoration of the volume and distribution of fat compartments using appropriate cannula entry sites and injection planes is an excellent fat-grafting technique for facial contouring and hand rejuvenation. Objective To perform subjective and objective evaluations of the safe and effective profile of the targeted fat-grafting technique for temporal hollowing augmentation. Design, Setting, and Participations In a retrospective cohort study, a total of 96 consecutive patients with temporal hollowing were treated at the Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai, China, with the targeted fat-grafting technique from January 1, 2009, to January 1, 2017. Main Outcomes and Measures The safety and efficacy profile of this technique was evaluated by the following methods: (1) a quantitative measurement of fat-graft survival and temporal augmentation rates by using 3-dimensional laser scanning, (2) a subjective assessment using a satisfaction survey and the Hollowness Severity Rating Scale (grades range from 0-3, with higher grades representing more hollowness), and (3) the complication rate. Results Of the 96 study patients, 94 (97.9%) were women and the mean (SD) age was 34.4 (7.4) years. Of the 142 autologous fat-grafting procedures performed, the mean (SD) total follow-up time was 16.3 (3.2) months, with a mean (SD) of 1.5 (0.7) procedures performed. The mean (SD) baseline volume requirement per temple for each patient was 12.8 (4.8) mL, and the total volume of the fat graft per temple was 17.8 (7.5) mL. Quantitative analysis revealed that the mean (SD) total augmentation volume per temple was 11.7 (3.0) mL, the total survival rate of the fat grafts was 65.7% (12.6%), and total augmentation rate of hollowness was 91.4% (23.4%). Subjective analysis revealed that all patients showed an improved appearance after fat grafting, and 142 temples (74.0%) exhibited clinical improvement by more than 2 grades. In all, 88 patients (91.7%) were satisfied with the outcomes, with a low complication rate reported. Conclusions and Relevance The targeted fat-grafting technique allows the transplant of fat tissue into 4 separate fat compartments in a double-plane manner through a unique cannula entry site that avoids severe neurovascular injury. The long-term results demonstrate that this technique is an effective, reproducible, and safe approach for temporal hollowing augmentation. Level of Evidence 4.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjin Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pohching Tan
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Wang C, Mo SF, Zhang JB, Li JR, Huang RL, Tan HY. [Personal dose monitoring of radiation workers in medical institutions at the municipal level and below in a city from 2011 to 2014]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:594-597. [PMID: 29081129 DOI: 10.3760/cma.j.issn.1001-9391.2017.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine the personal dose level of radiation workers in medical institutions at the municipal level and below in a city, and to provide a scientific support for strengthening the radiation protection in the city's medical institutions. Methods: Information of the successful applicants for the "Radiation Worker Permit" from 174 medical institutions at the municipal level and below was collected from October 1, 2011 to December 31, 2014. The annual effective dose was calculated based on the personal dose monitoring report, and indicators including sex, permit application time, hospital level, type of occupational radiation, length of radiation work, blood test, and micronucleated lymphocyte rate were analyzed. Results: Of the 1 143 radiation worker permit applications submitted by medical institutions the municipal level and below in this city from 2011 to 2014, 1 123 provided at least one personal dose monitoring report. The annual effective dose of the radiation workers was 0-4.76 mSv (mean 0.31±0.40 mSv) , and the collective annual effective dose was 351.96 mSv. The annual effective dose was significantly different between radiation workers with different times of permit application, hospital levels, and types of occupational radiation (P<0.05) . Interventional radiology workers had the highest annual effective dose (0.63 mSv) , and annual effective dose was significantly different between interventional radiology workers with different lengths of radiation work (H=10.812, P<0.05) . Conclusion: The personal radiation dose of radiation workers in medical institutions at the municipal level and below in this city is maintained at a relatively low level, suggesting that the occupational environment is relatively safe for these workers. However, more focus should be placed on clinical interventional radiology workers.
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Affiliation(s)
- C Wang
- Radiological Health Department, Guangzhuo Center for Disease Control and Prevention, Guangzhou 510440, China
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Li YM, Li ZH, Huang RL, Wang SY, Zhang ZX. Residue and distribution of triforine in different cultivars and fruit periods of watermelon under field conditions. Ecotoxicol Environ Saf 2018; 156:428-433. [PMID: 29597060 DOI: 10.1016/j.ecoenv.2018.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 02/22/2018] [Accepted: 03/06/2018] [Indexed: 06/08/2023]
Abstract
The dissipation of triforine in the immature and mature fruit periods was investigated under field conditions. Residue levels of triforine in watermelon were determined by gas chromatography with an electron capture detector (GC-ECD). The decline curves of triforine residues in the watermelon corresponded with first-order kinetics. The half-lives of triforine in Dark Belle and Shiny Boy were 2.10-2.57 days and 2.31-2.67 days respectively. Meanwhile, the half-lives of triforine in the immature and mature fruit periods were 1.69-2.04 days and 2.89-3.85 days, respectively. In the terminal residue experiment, the terminal residues of triforine in the watermelon flesh and peel were below 0.01 mg/kg to 0.05 mg/kg and 0.03 mg/kg to 0.36 mg/kg, respectively. The dissipation rates of triforine varied in different cultivars of watermelon, and even in the same cultivar, the half-lives of triforine significantly varied in the different fruit periods. Although triforine is a fungicide within the suction, the terminal residues in the peel and flesh were very significant.
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Affiliation(s)
- Y M Li
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Z H Li
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - R L Huang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - S Y Wang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Z X Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangzhou 510642, China.
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Huang RL, Sun Y, Ho CK, Liu K, Tang QQ, Xie Y, Li Q. IL-6 potentiates BMP-2-induced osteogenesis and adipogenesis via two different BMPR1A-mediated pathways. Cell Death Dis 2018; 9:144. [PMID: 29396550 PMCID: PMC5833364 DOI: 10.1038/s41419-017-0126-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 11/03/2017] [Accepted: 11/07/2017] [Indexed: 02/08/2023]
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) is widely used in the clinic for bone defect reconstruction because of its powerful osteoinductive capacity. However, commercially available rhBMP-2 requires a high concentration in the clinical setting for consistent bone formation. A high dose of rhBMP-2 induces a promising bone formation yield but also leads to inflammation-related events, deteriorated bone quality, and fatty tissue formation. We hypothesize that the seemingly contradictory phenomenon of coformation of new bone and excessive adipose tissue in rhBMP-2-induced bone voids may be associated with interleukin-6 (IL-6), which is significantly elevated after application of rhBMP-2/absorbable collagen sponge (rhBMP-2/ACS). Here, we show that IL-6 injection enhances new bone regeneration and induces excessive adipose tissue formation in an rhBMP-2/ACS-induced ectopic bone formation model in rats. In vitro data further show that IL-6 and its soluble receptor sIL-6R synergistically augment rhBMP-2-induced osteogenic and adipogenic differentiation of human BMSCs (hBMSCs) by promoting cell surface translocation of BMPR1A and then amplifying BMPR1A-mediated BMP/Smad and p38 MAPK pathways, respectively. Our study suggests elevated IL-6 may be responsible for coformation of new bone and excessive adipose tissue in rhBMP-2-induced bone voids.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Yangbai Sun
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Chia-Kang Ho
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China
| | - Qi-Qun Tang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Biochemistry and Molecular Biology, Fudan University Shanghai Medical College, Shanghai, 200032, China
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, China.
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Zhang PW, Wang SY, Huang CL, Fu JT, Huang RL, Li ZH, Zhang ZX. Dissipation and residue of clothianidin in granules and pesticide fertilizers used in cabbage and soil under field conditions. Environ Sci Pollut Res Int 2018; 25:27-33. [PMID: 27704383 DOI: 10.1007/s11356-016-7736-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 09/15/2016] [Indexed: 06/06/2023]
Abstract
The single application of 0.5 % clothianidin granules, a novel formulation, was used to control pests in vegetables under a high dose. In this article, residues of clothianidin in cabbage and soil samples under field conditions from Guangzhou, Nanning, and Qianjiang were determined by HPLC. The terminal residues of clothianidin in cabbage were less than the limit of detection (<LOD) at pre-harvest intervals of 30 days, and these values were lower than the maximum residue limit of 0.2 mg kg-1 in cabbage set by the Codex Alimentarius Commission. To test on the influence of the pesticide fertilizers' effect on clothianidin residual, clothianidin granules and fertilizers of chicken manure, urea, and organic fertilizer were mixed into different pesticide fertilizers through their normal field using dosage and evaluate residual influence of clothianidin in different formula. After analysis of variance of the effect factors, the effect of different pesticide types on half-life was not significant, but the effect of sample types was significant. Clothianidin granules and pesticide fertilizers could be safely applied in cabbage under a single high-dose administration.
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Affiliation(s)
- P W Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - S Y Wang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - C L Huang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - J T Fu
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - R L Huang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Z H Li
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Z X Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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Huang RL, Xie Y, Wang W, Herrler T, Zhou J, Zhao P, Pu LLQ, Li Q. Anatomical Study of Temporal Fat Compartments and its Clinical Application for Temporal Fat Grafting. Aesthet Surg J 2017; 37:855-862. [PMID: 28520850 PMCID: PMC5846703 DOI: 10.1093/asj/sjw257] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Low satisfaction rates and severe complications are two major limitations for temporal hollowing augmentation using autologous fat grafting. Despite fat compartments in temporal region have been reported, its clinical applied anatomy for fat grafting have not been the subject of studies that show its benefits objectively and statistically. OBJECTIVES To investigate temporal fat compartments and relative neurovascular structures in cadavers, developing a safe and effective fat grafting technique for temporal hollowing augmentation. METHODS The study was conducted on 8 cadavers (16 temples). The tissue layers, fat compartments, ligaments, and neurovascular structures in the temporal region were analysed. The variables were the number and location of sentinel veins, perforator vessels of the middle temporal vein. Measurements were taken with a digital calliper. RESULTS Two separate fat compartments, the lateral temporal-cheek fat compartment and lateral orbital fat compartment, were found in the subcutaneous layer, and two separate septum compartments, the upper and lower temporal compartment, were found in the loose areolar tissue layer. One sentinel vein and 1 to 6 perforator vessels were found to travel through the subcutaneous tissue layer, traverse the overlapping tissue layers in the lower temporal septum region, and finally join in the middle temporal vein. CONCLUSIONS The four fat compartments in the temporal region are ideal receipt sites for fat grafting. The medial border of the junction of the hairline and temporal line is a safe and effective cannula entry site for temporal fat grafting. The anterior half of the lower temporal compartment is a "zone of caution" for temporal fat grafting.
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Affiliation(s)
- Ru-Lin Huang
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Yun Xie
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Wenjin Wang
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Tanja Herrler
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Jia Zhou
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Peijuan Zhao
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Lee LQ Pu
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
| | - Qingfeng Li
- Drs Huang, Xie, Wang, Zhou, and Zhao are Plastic Surgeons, and Dr Li is a Professor, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Dr Herrler is an Attending Surgeon, Plastic Surgery and Burn Center, Trauma Center Murnau, Murnau, Germany. Dr Pu is a Professor of Plastic Surgery, Division of Plastic Surgery, University of California, Davis, Sacramento, CA, USA
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Huang RL, Kobayashi E, Liu K, Li Q. Bone Graft Prefabrication Following the In Vivo Bioreactor Principle. EBioMedicine 2016; 12:43-54. [PMID: 27693103 PMCID: PMC5078640 DOI: 10.1016/j.ebiom.2016.09.016] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 08/11/2016] [Accepted: 09/16/2016] [Indexed: 01/31/2023] Open
Abstract
Large bone defect treatment represents a great challenge due to the difficulty of functional and esthetic reconstruction. Tissue-engineered bone grafts created by in vitro manipulation of bioscaffolds, seed cells, and growth factors have been considered potential treatments for bone defect reconstruction. However, a significant gap remains between experimental successes and clinical translation. An emerging strategy for bridging this gap is using the in vivo bioreactor principle and flap prefabrication techniques. This principle focuses on using the body as a bioreactor to cultivate the traditional triad (bioscaffolds, seed cells, and growth factors) and leveraging the body's self-regenerative capacity to regenerate new tissue. Additionally, flap prefabrication techniques allow the regenerated bone grafts to be transferred as prefabricated bone flaps for bone defect reconstruction. Such a strategy has been used successfully for reconstructing critical-sized bone defects in animal models and humans. Here, we highlight this concept and provide some perspective on how to translate current knowledge into clinical practice. The in vivo bioreactor principle and flap prefabrication technique is a promising strategy for bone defect reconstruction. The in vivo bioreactor principle focuses on using the body’s self-regenerative capacity to regenerate new tissue. This strategy has been successfully used to reconstruct critical-sized bone defects in humans.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Eiji Kobayashi
- Department of Organ Fabrication, Keio University School of Medicine, Tokyo, Japan
| | - Kai Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China.
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Huang RL, Liu K, Li Q. Bone regeneration following the in vivo bioreactor principle: is in vitro manipulation of exogenous elements still needed? Regen Med 2016; 11:475-81. [PMID: 27357365 DOI: 10.2217/rme-2016-0021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Large bone defect treatment is a key challenge due to the difficulty of functional and aesthetic reconstruction. A promising approach for bone regeneration is bone tissue engineering which is based on in vitro manipulation of seed cells, growth factors and bioscaffolds. However, many formidable conceptual and technical challenges impede clinical translation of experimental successes into clinical practices. An emerging strategy for bone regeneration is using the body as a bioreactor to cultivate the traditional triad and leveraging the body's own regenerative capacity to create new bone tissue. Based on the understanding of bone regeneration and in vivo bioreactor principle, we hypothesize that functional bone tissue may be eventually generated in vivo only using autologous costal periosteum, without participation of any exogenous elements.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Kai Liu
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Qingfeng Li
- Department of Plastic & Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, China
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Fang F, Huang RL, Zheng Y, Liu M, Huo R. Bone marrow derived mesenchymal stem cells inhibit the proliferative and profibrotic phenotype of hypertrophic scar fibroblasts and keloid fibroblasts through paracrine signaling. J Dermatol Sci 2016; 83:95-105. [PMID: 27211019 DOI: 10.1016/j.jdermsci.2016.03.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 02/16/2016] [Accepted: 03/03/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Hypertrophic scars and keloids, characterized by over-proliferation of fibroblasts and aberrant formation of the extracellular matrix (ECM), are considered fibrotic diseases. Accumulating evidence indicates that mesenchymal stem cells (MSCs) promote scar-free wound healing and inhibit fibrotic tissue formation, making them a potentially effective therapeutic treatment for hypertrophic scars and keloids. OBJECTIVE To investigate the paracrine effects of bone marrow derived MSCs (BMSCs) on the biological behavior of hypertrophic scar fibroblasts (HSFs) and keloid fibroblasts (KFs). METHODS Proliferative and profibrotic phenotype changes of the fibroblasts were analyzed by immunofluorescence staining, in-cell western blot, and real-time PCR. RESULTS BMSC-conditioned medium inhibited HSF and KF proliferation and migration, but did not induce apoptosis. Interestingly, normal skin fibroblast-conditioned medium exhibited no inhibitory effects on HSF or KF proliferation and migration. Furthermore, BMSC-conditioned medium significantly decreased expression of profibrotic genes, including connective tissue growth factor, plasminogen activator inhibitor-1, transforming growth factor-β1, and transforming growth factor-β2, in HSFs and KFs at both transcriptional and translational levels. In contrast, the expression of antifibrotic genes, such as transforming growth factor-β3 and decorin, was substantially enhanced under the same culture conditions. Finally, we observed that BMSC-conditioned medium suppressed the ECM synthesis in HSFs and KFs, as indicated by decreased expression of collagen I and fibronectin and low levels of hydroxyproline in cell culture supernatant. CONCLUSION These findings suggest that BMSCs attenuate the proliferative and profibrotic phenotype associated with HSFs and KFs and inhibit ECM synthesis through a paracrine signaling mechanism.
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Affiliation(s)
- Fengjun Fang
- Department of Aesthetic, Plastic, and Burn Surgery, Shangdong Provincial Hospital, Shangdong University, No. 324 Jing 5 wei 7 Road, Jinan 250021, China; Department of Plastic Surgery, People's Hospital of Jimo, No. 4 Jianmin Road, Jimo 266200, China
| | - Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Yongchao Zheng
- Department of Plastic Surgery, People's Hospital of Jimo, No. 4 Jianmin Road, Jimo 266200, China
| | - Ming Liu
- Department of Plastic Surgery, People's Hospital of Jimo, No. 4 Jianmin Road, Jimo 266200, China
| | - Ran Huo
- Department of Aesthetic, Plastic, and Burn Surgery, Shangdong Provincial Hospital, Shangdong University, No. 324 Jing 5 wei 7 Road, Jinan 250021, China.
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Huang RL, Chen G, Wang W, Herller T, Xie Y, Gu B, Li Q. Synergy between IL-6 and soluble IL-6 receptor enhances bone morphogenetic protein-2/absorbable collagen sponge-induced bone regeneration via regulation of BMPRIA distribution and degradation. Biomaterials 2015; 67:308-22. [PMID: 26232880 DOI: 10.1016/j.biomaterials.2015.07.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 07/22/2015] [Accepted: 07/23/2015] [Indexed: 01/13/2023]
Abstract
Bone morphogenetic protein-2/absorbable collagen sponge (BMP-2/ACS) implants have been approved for clinical use to induce bone regeneration. We previously showed that exaggerated inflammation characterized by elevated level of inflammatory cytokines including TNF-α, IL-1β, and IL-6 has been shown to inhibit BMP-2/ACS-induced bone regeneration. Furthermore, unlike the negative effects of TNF-α and IL-1β, IL-6 seemed not to affect BMP-2-induced osteoblastic differentiation of bone marrow mesenchymal stem cells (BMSCs). We hypothesized that there may be a regulatory loop between IL-6 and BMP-2 singling to affect BMP-2/ACS-induced bone regeneration. Here, we established a BMP-2/ACS-induced ectopic bone formation model in rats and fund that IL-6 injection significantly increased BMP-2/ACS-induced bone mass. Consistent with this animal model, an in vitro study demonstrated that synergy between IL-6 and soluble IL-6 receptor (IL-6/sIL-6R) promotes BMP-2-induced osteoblastic differentiation of human BMSCs through amplification of BMP/Smad signaling. Strikingly, IL-6 injection did not activate osteoclast-mediated bone resorption in the ectopic bone formation model, and IL-6/sIL-6R treatment did not affect receptor activator of NF-κB ligand (RANKL)-induced osteoclastic differentiation of human peripheral blood mononuclear cells (PBMCs) in vitro. Furthermore, IL-6/sIL-6R treatment did not affect expression of BMP receptors, but enhanced the cell surface translocation of BMP receptor IA (BMPRIA) and inhibited the degradation of BMPRIA. Collectively, these findings indicate that synergy between IL-6 and sIL-6R promotes the cell surface translocation of BMPRIA and maintains the stability of BMPRIA expression, leading to enhanced BMP-2/ACS-induced bone regeneration.
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Affiliation(s)
- Ru-Lin Huang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Gang Chen
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Wenjin Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Tanja Herller
- Department of General, Trauma, Hand, and Plastic Surgery, University of Munich, Munich, Germany
| | - Yun Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Bin Gu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China.
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Wang QH, Jiao Y, Du XD, Zhao XX, Huang RL, Deng YW, Yan F. Molecular characterization and expression analysis of purple acid phosphatase gene from pearl oyster Pinctada martensii. Genet Mol Res 2015; 14:552-62. [PMID: 25729991 DOI: 10.4238/2015.january.26.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Purple acid phosphatases (PAPs), also known as type 5 acid phosphatases, are widely present in animals, plants, and fungi. In mammal, PAP was reported to participate in immune defense and bone resorption. In this study, the characteristics and potential functions of a PAP gene from pearl oyster Pinctada martensii (pm-PAP) were examined. The Pm-PAP cDNA was found to be 2777 base pairs, containing a 1581-base pair open reading fragment encoding for 526 amino acids with an estimated molecular mass of 60.1 kDa and theoretical isoelectric point of 5.82. One signal peptide and five conserved motifs [GDXX/GDXXY/GNH(D/E)/XXXH/(A/G)HXH] were present in the entire sequence. Tissue expression profile analysis showed that pm-PAP mRNA was constitutively expressed in all tissues studied with abundant mRNA found in mollusk defense system, including hepatopancreas, gill, and hemocytes. After lipopolysaccharide stimulation, the expression of pm-PAP mRNA in hemocytes was dramatically upregulated at 2 h and achieved the highest level at 36 h. Additionally, pm-PAP mRNA expression was significantly increased and achieved the highest level at 2 days after the surgical implantation during pearl production. These results suggest that pm-PAP is a constitutive and inducible protein that may be involved in the immune defense of pearl oyster.
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Affiliation(s)
- Q H Wang
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - Y Jiao
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - X D Du
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - X X Zhao
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - R L Huang
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - Y W Deng
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
| | - F Yan
- Fishery College, Guangdong Ocean University, Zhanjiang City, Guangdong, China
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Duan JL, Yin J, Ren WK, Wu MM, Chen S, Cui ZJ, Wu X, Huang RL, Li TJ, Yin YL. Pyrrolidine dithiocarbamate restores gastric damages and suppressive autophagy induced by hydrogen peroxide. Free Radic Res 2015; 49:210-8. [PMID: 25471085 DOI: 10.3109/10715762.2014.993627] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
It is well known that gastric barrier is very important for protecting host from various insults. Simultaneously, autophagy serving as a prominent cytoprotective and survival pathway under oxidative stress conditions is being increasingly recognized. Thus, this study was conducted for investigating the effect of pyrrolidine dithiocarbamate (PDTC) on gastric barrier function and autophagy under oxidative stress induced by intragastric administration of hydrogen peroxide (H2O2). The gastric tight junction proteins [zonula occludens-1 (ZO1), occludin, and claudin1], autophagic proteins [microtubule-associated protein light chain 3I(LC3I), LC3II, and beclin1], and nuclear factor kappa B (NF-κB) signaling pathway (p65 and IκB kinase α/β) were determined by Western blot. The results showed that H2O2 exposure disturbed gastric barrier function with decreased expression of ZO1, occludin, and claudin1, and reduced gastric autophagy with decreased conversion of LC3I into LC3II in mice. However, treatment with PDTC restored these adverse effects evidenced by increased expression of ZO1 and claudin1 and increased conversion of LC3I into LC3II. Meanwhile, H2O2 exposure decreased normal human gastric epithelial mucosa cell line (GES-1) viability in a concentration-dependent way. However, after being exposed to H2O2, GES-1 exhibited autophagic response which was inconsistent with our in vivo results in mice, while PDTC failed to decrease autophagy in GES-1 induced by H2O2. Simultaneously, the beneficial effect of PDTC on gastric damage and autophagy in mice might be independent of inhibition of NF-κB. In conclusion, PDTC treatment restores gastric damages and reduced autophagy induced by H2O2. Therefore, PDTC may serve as a potential adjuvant therapy for gastric damages.
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Affiliation(s)
- J L Duan
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences , Changsha, Hunan , P. R. China
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Huang RL, Yuan Y, Zou GM, Liu G, Tu J, Li Q. LPS-stimulated inflammatory environment inhibits BMP-2-induced osteoblastic differentiation through crosstalk between TLR4/MyD88/NF-κB and BMP/Smad signaling. Stem Cells Dev 2013; 23:277-89. [PMID: 24050190 DOI: 10.1089/scd.2013.0345] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Bone morphogenetic protein-2 (BMP-2) is a novel differentiation factor that is capable of inducing osteoblast differentiation and bone formation, making it an attractive option in treatment of bone defects, fractures, and spine fusions. Inflammation, which was a common situation during bone healing, is recognized to inhibit osteogenic differentiation and bone formation. However, the effect of inflammation on BMP-2-induced osteoblastic differentiation remains ambiguous. In this study, we showed that an inflammatory environment triggered by lipopolysaccharide (LPS) in vitro would suppress BMP-2-induced osteogenic differentiation of bone marrow mesenchymal stem cells, which represented by decreased alkaline phosphatase (ALPase) activity and down-regulated osteogenic genes. In addition, LPS activated nuclear factor-κB (NF-κB) via a TLR4/MyD88-dependent manner and inhibited BMP-2-induced phosphorylation and nuclear translocation of Smad1/5/8. The blocking of NF-κB signaling by pretreatment with specific inhibitors such as BAY-11-7082, TPCK and PDTC, or by transfection with plasmids encoding p65 siRNA or IκBα siRNA could significantly reverse the inhibitory effect of LPS on BMP-2-induced BMP/Smad signaling and osteogenic differentiation. By contrast, even without stimulation of LPS, overexpression of p65 gene showed obvious inhibitory effects on BMP-2-induced BMP/Smad signaling and ALPase activity. These data indicate that the LPS-mediated inflammatory environment inhibits BMP-2-induced osteogenic differentiation, and that the crosstalk between TLR4/MyD88/NF-κB and BMP/Smad signaling negatively modulates the osteoinductive capacity of BMP-2.
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Affiliation(s)
- Ru-Lin Huang
- 1 Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine , Shanghai, China
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Yin ZH, Huang RL, Lu HY, Liu XY. Are humoral factors involved in the colonic mucosal lesion in portal hypertensive rats? Acta Gastroenterol Belg 2007; 70:271-6. [PMID: 18074736 DOI: pmid/18074736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
AIMS With a prehepatic portal hypertensive rat model, we explored the involvement of humoral factors to the occurrence of portal hypertensive colopathy (PHC), another clinical entity besides portal hypertensive gastropathy (PHG) in portal hypertension, by investigating the expression of inducible nitric oxide synthase (iNOS), endothelial constitutive NOS (ecNOS), endothelin-1 (ET-1), tumour necrosis factor alpha (TNF-alpha) and vascular endothelial growth factor (VEGF) in the colonic and gastric mucosa. METHODS Portal hypertension was produced by a two-stage ligation of portal vein plus ligation of the left adrenal vein in male Sprague-Dawley rats. Two weeks after complete obstruction of the portal vein, the portal pressure was measured and the expression of iNOS, ecNOS, ET-1, TNF-alpha and VEGF in the colonic and gastric mucosa were detected by RT-PCR and immunohistochemistry methods. RESULTS A 1.8 fold (P < 0.01) elevation of the portal pressure was detected in the portal hypertensive rats as compared to control. Significantly up-regulation of the mRNA levels of iNOS (P < 0.01), ET-1 (P < 0.05) and TNF-alpha (P < 0.01), but not ecNOS and VEGF, were detected in the colonic mucosa of portal hypertensive rats compared with control. The mRNA of iNOS, ecNOS, ET-1, TNF-alpha and VEGF were all significantly increased at varied levels in the gastric mucosa as compared to control (P all < 0.05). No difference of the appearance and localization of immunostaining of iNOS, ecNOS, ET-1, TNF-alpha and VEGF in the colonic and gastric mucosa were seen between two groups. CONCLUSIONS These data suggest the involvement of the upregulation of iNOS, ET-1 and TNF-alpha in the colonic mucosal lesion of portal hypertensive rats.
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Affiliation(s)
- Z H Yin
- Department of General Surgery, First Affiliated Hospital of Shantou University Medical College, 515041 Shantou, Guangdong, China.
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Chen H, Huang RL, Zhang HX, Di KQ, Pan D, Hou YG. Effects of photoperiod on ovarian morphology and carcass traits at sexual maturity in pullets. Poult Sci 2007; 86:917-20. [PMID: 17435026 DOI: 10.1093/ps/86.5.917] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This paper is concerned with the effects of photoperiod on ovarian morphology and carcass traits at sexual maturity in egg-type hens. Two hundred fifty-six commercial egg-type pullets were initially subjected to a photoperiod of 23L:1D, which was reduced to 22L:2D at 1 wk, to 18L:6D at 2 wk, and to 16L:8D at 3 wk. From 4 to 20 wk, the photoperiod was 8L:16D. At 20 wk, 32 pullets were individually caged in individually lit cages, with 8 cages per unit. Two cage units were placed into 4 photoperiods of 17L:7D, 15L:9D, 13L:11D, and 11L:13D, respectively. Each bird was processed when it reached sexual maturity (SM), and carcass and ovarian morphology were assessed. The results showed that photoperiod had an effect on the timing of SM, and the age at first egg was 5.7 d earlier for hens exposed to the 17L:7D photoperiod than the 11L:13D photoperiod. However, photoperiod had no effect on BW at SM. A photoperiod of 11L:13D limited ovarian follicle formation and increased carcass protein and lipid compared with birds on longer photoperiods, whereas the 17L:7D photoperiod restricted ovary and oviduct full development. These results indicated that excessively long and short photoperiods can restrict reproductive development in egg-type hens.
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Affiliation(s)
- H Chen
- College of Animal Science and Technology, Agricultural University of Hebei, Hebei 071001, China
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Geisberg C, Goring J, Listerman J, Nading MA, Huang RL, Butler J. Impact of Optimal Heart Failure Medical Therapy on Heart Transplant Listing. Transplant Proc 2006; 38:1493-5. [PMID: 16797340 DOI: 10.1016/j.transproceed.2006.02.099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Indexed: 11/21/2022]
Abstract
The data assessing the prognostic value of peak exercise oxygen consumption (VO2) in heart failure (HF) patients is largely derived from cross-sectional studies in which medical therapy was not maximized in all eligible patients and no clear explanation was given as to why such was the case. To assess the relative prognostic value of peak VO2 with respect to baseline medical therapy and its potential impact on transplant listing, 1-year event-free (death or left ventricular assist device placement) survival was compared among 341 HF patients, stratified in three groups based on peak VO2 (<10, 10 to 14, and >14 mL/min/kg). Similar analysis was performed on a subset of 288 patients who were on optimal medical therapy within this group. Average age of the study population was 55+/-11 years, ejection fraction was 23%+/-08%, and peak VO2 was 12.4+/-3.6 mL/min/kg. One-year event-free survival for the overall cohort was: peak VO2<10 (n=87), 63.2%; 10 to 14 (n=141), 81.1%; and >14 mL/min/kg (n=113), 90.2%. Patients with the same groups who were on optimal therapy had an event-free 1-year survival as follows: <10 (n=69), 72.4%; VO2 10 to 14 (n=127), 91.5%; and >14 mL/min/kg (n=92), 94.6%. In conclusion, cross-sectional assessment of HF prognosis may be misleading. In the intermediate risk group, this can significantly impact on medical decisions (eg, transplant listing). Optimization of therapy and long-term follow-up by a specialist may impact transplant listing.
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Affiliation(s)
- C Geisberg
- Cardiology Division, Vanderbilt University, Nashville, Tennessee 37232-6300, USA
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Huang RL, Yin YL, Wu GY, Zhang YG, Li TJ, Li LL, Li MX, Tang ZR, Zhang J, Wang B, He JH, Nie XZ. Effect of dietary oligochitosan supplementation on ileal digestibility of nutrients and performance in broilers. Poult Sci 2005; 84:1383-8. [PMID: 16206559 DOI: 10.1093/ps/84.9.1383] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The effect of dietary chitosan oligosaccharides (COS) supplementation on ileal digestibilities of nutrients and performance in broilers was assessed by feeding graded levels (0, 50, 100, 150 mg/kg) of COS. Two thousand four hundred male commercial Avian broilers (1-d-old) were assigned randomly to 5 dietary treatment groups (60 birds per pen with 8 pens per treatment). Diet A was a typical corn- and soybean meal-based diet supplemented with 6 mg/kg of an antibiotic flavomycin (positive control). Diet B was the basal diet without any supplement. Diets C, D, and E were formulated by adding 50, 100, and 150 mg/kg of COS to the basal diet, respectively. On the morning of d 21 and 42, 64 birds (8 per pen with 8 pens per treatment) from the growth trial for each age group were killed by cervical dislocation for determination of the ileal digestibilities of nutrients. Dietary supplementation with COS and antibiotic enhanced (P < 0.05) the ileal digestibilities of DM, Ca, P, CP, and all amino acids (except for alanine in the 21-d-old birds or phenylalanine, glutamate, and glycine for the 42-d-old birds). Feed efficiency was improved (P < 0.05) in response to dietary supplementation of an antibiotic or COS (150 mg/kg for d 1 to 21, and 100 and 150 mg/kg for d 21 to 42). The results demonstrate for the first time to our knowledge that dietary COS supplementation was effective in increasing the ileal digestibilities of nutrients and feed efficiency in broilers. Our findings may explain a beneficial effect of COS on chicken growth performance.
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Affiliation(s)
- R L Huang
- Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Hunan 410125, The People's Republic of China
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Wu PC, Huang RL, Lang JH, Huang HF, Lian LJ, Tang MY. Treatment of malignant ovarian germ cell tumors with preservation of fertility: A report of 28 cases. Int J Gynaecol Obstet 2004. [DOI: 10.1016/0020-7292(91)90521-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yin YL, Huang RL, Zhong HY, Li TJ, Souffrant WB, de Lange CFM. Evaluation of mobile nylon bag technique for determining apparent ileal digestibilities of protein and amino acids in growing pigs. J Anim Sci 2002; 80:409-20. [PMID: 11883430 DOI: 10.2527/2002.802409x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The mobile nylon bag technique (MNBT) may offer a simple, rapid means for assessing ileal AA digestibility of pig feed ingredients. In the present study, the effects of washing bags recovered from digesta, the amount and fineness of feeds, and feed trypsin inhibitor activity on apparent ileal digestibilities (AID) of CP and AA were determined with the MNBT. Twenty-four ileorectal anastomosed pigs (Yorkshire x Chinese Black barrows, 30 kg initial BW), of which 12 were fitted with duodenal T-cannulas, were used. Not washing the bags recovered from ileal digesta resulted in a reduction (P < 0.05) in apparent ileal digestibilities of CP and AA determined by MNBT. Washing the bags for more than 4 min overestimated (P < 0.05) the apparent ileal digestibilities of CP and AA compared with those determined with the anastomosed pigs. Sample size and fineness of grinding also affected (P < 0.05) apparent ileal digestibilities of CP determined by MNBT. The apparent ileal digestibilities of CP determined by MNBT were reduced (P < 0.05) when sample size exceeded 0.75 g and when feed was ground through screens with a mesh size of more than 1.0 mm. The closest agreement between results obtained by MNBT and a conventional ileal digestibility assay occurred when 0.75 g of feed ground through a 1.0-mm mesh screen was used per bag and bags were washed for 2 min after retrieval from digesta. Further studies are warranted to investigate the use of the mobile nylon bag technique for predicting the ileal digestibilty of AA for feeds containing antinutritional factors.
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Affiliation(s)
- Y L Yin
- Changsha Institute of Agricultural Modernization, Chinese Academy of Sciences, Hunan, People's Republic of China.
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Abstract
Investigation of the constituents of Garcinia mangostana has led to the isolation of four new compounds: three minor xanthones, garcimangosone A (1), garcimangosone B (2), and garcimangosone C (3), and a benzophenone glucoside, garcimangosone D (4). The structures of these four compounds were established by spectral (NMR and MS) and chemical methods.
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Affiliation(s)
- Y L Huang
- National Research Institute of Chinese Medicine, No. 155-1, Sec. 2, Li Nung Street Peitou, Taipei, Taiwan, Republic of China
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Chen CH, Huang RL, Yu MS, Wong LJ, Chao TF, Chu TY. Hereditary nonpolyposis colorectal cancer with gynecologic malignancies: report of two families in Taiwan. J Formos Med Assoc 2001; 100:269-73. [PMID: 11393127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023] Open
Abstract
Hereditary nonpolyposis colon cancer (HNPCC), also known as Lynch syndrome, is characterized by germline and somatic mutations of DNA mismatch repair genes with dominant inheritance of site-specific colorectal cancer or colorectal cancer plus cancers of extracolonic sites. We describe two Taiwanese HNPCC families with members who had predominantly gynecologic malignancies. In one family, the 53-year-old proband was found to have five synchronous and metachronous tumors of the genitourinary system, which included endometrial adenocarcinoma, cervical squamous cell carcinoma, ureteral and bladder transitional cell carcinoma, and ovarian teratoma. Fourteen of her first- and second-degree relatives were victims of genitourinary and gastrointestinal malignancies. The other family was characterized by four sisters who developed endometrial adenocarcinomas at young ages (36-42 yr). Their father died of both stomach cancer and colon cancer at age 47. The diagnosis of HNPCC was confirmed in this family by genetic analysis. A heterozygous germline mutation (G5 to G6 frame-shift at 183-187) of the hMSH2 (human MutS homolog 2) gene was identified in white blood cells of all the affected family members. The frequent presentation of genitourinary cancers in HNPCC highlights the importance of family-history taking in patients with gynecologic cancers and a genetic diagnosis of HNPCC.
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Affiliation(s)
- C H Chen
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Kuo YH, Li SY, Huang RL, Wu MD, Huang HC, Lee KH. Schizanrins [corrected] B, C, D, and E, four new lignans from Kadsura matsudai and their antihepatitis activities. J Nat Prod 2001; 64:487-90. [PMID: 11325232 DOI: 10.1021/np000261m] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Bioassay-directed fractionation of ethanolic extract of Kadsura matsudai Hayata has resulted in the isolation of four novel C(18) dibenzocyclooctadiene lignans, schizanrin B (1), schizanrin C (2), schizanrin D (3), and schizanrin E (4). Schizanrin B (1) showed moderate to strong activity for antihepatitis in both anti-HBsAg and anti-HBeAg assays, and 3 and 4 also were active in the latter assay [corrected]. Compounds 1--4 were inactive in vitro against HIV replication in H9 lymphocytes. All new structures were elucidated using spectral analysis. Their structural elucidation by spectral and structure--activity relationships is also discussed.
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Affiliation(s)
- Y H Kuo
- National Research Institute of Chinese Medicine, 155-1, Sec. 2, Li-Nong Street, Shih-Pai, Taipei 112, Taiwan, Republic of China
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Abstract
A novel C19 homolignan, taiwanschirin D (1), possessing a 3,4-(1-[(Z)-2-methoxy-2-oxoethylidenel)pentano (2,3-dihydrobenzo[b]furan)-3(2-oxoacetate) skeleton, was isolated from the stem of Kadsura matsudai Hayata. Its structure was determined from physical and spectral data including 2D NMR spectra. The Anti-HBeAg test revealed that taiwanschirin D (1) had moderate activity at a concentration of 94.3 microM (50 microg/ml).
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Affiliation(s)
- S Y Li
- National Research Institute of Chinese Medicine, Shih-Pai, Taipei 112, Taiwan
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Huang RL, Chen CC, Huang HL, Chang CG, Chen CF, Chang C, Hsieh MT. Anti-hepatitis B virus effects of wogonin isolated from Scutellaria baicalensis. Planta Med 2000; 66:694-8. [PMID: 11199123 DOI: 10.1055/s-2000-9775] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
By using an HBV-producing cell line (MS-G2) in vitro culture system, we found that wogonin isolated from Scutellaria baicalensis can suppress HBV surface antigen production (P < 0.001) without evidence of cytotoxicity. By assaying the endogenous HBV DNA polymerase activity, we found that both the relaxed circular and the linear forms of HBV DNA are significantly reduced in the wogonin-treated group. Wogonin deserves to be further evaluated for the treatment of human HBV infection.
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Affiliation(s)
- R L Huang
- Department of Pharmacology, National Research Institute of Chinese Medicine, Taipei, Taiwan, ROC.
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Abstract
Six novel dihydrophenanthrene derivatives, sinensols A-F (1-6), were isolated from the aerial parts of Spiranthesis sinensis. Their structures were determined on the basis of various spectroscopic data, in particular those yielded by MS and 2D NMR techniques.
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Affiliation(s)
- Y L Lin
- National Research Institute of Chinese Medicine, Taipei 112, Taiwan, and Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
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Kuo YH, Li SY, Wu MD, Huang RL, Yang Kuo LM, Chen CF. A new anti-HBeAg lignan, kadsumarin A, from Kadsura matsudai and Schizandra arisanensis. Chem Pharm Bull (Tokyo) 1999; 47:1047-8. [PMID: 10434407 DOI: 10.1248/cpb.47.1047] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A new C18 dibenzocyclooctadiene lignan, kadsumarin A (1) was isolated from Kadsura matsudai Hayata and Schizandra arisanensis Hayata. The anti-HBeAg test revealed that kadsumarin A had activity at a concentration of 40 micrograms/ml (= 90.1 microM). Its structural elucidation by spectral analysis was discussed in this note.
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Affiliation(s)
- Y H Kuo
- National Research Institute of Chinese Medicine, Taipei, Taiwan, Republic of China
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Lai KH, Lin LF, Lo GH, Cheng JS, Huang RL, Lin CK, Huang JS, Hsu PI, Peng NJ, Ger LP. Does cholecystectomy after endoscopic sphincterotomy prevent the recurrence of biliary complications? Gastrointest Endosc 1999; 49:483-7. [PMID: 10202063 DOI: 10.1016/s0016-5107(99)70047-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The intact gallbladder after endoscopic sphincterotomy is thought to be a potential risk factor for recurrent biliary complications. The aim of this non-randomized prospective study was to investigate whether cholecystectomy soon after endoscopic sphincterotomy could prevent the recurrence of biliary complications. METHODS From January 1991 to October 1995, 140 patients with intact gallbladder underwent endoscopic sphincterotomy for clearance of stones in the bile duct. Of the 140 patients, 46 underwent elective cholecystectomy soon after sphincterotomy (group A) and 94 did not (group B). All 140 patients had quantitative cholescintigraphy after normalization of liver function and were followed on a regular basis with liver biochemistry, sonography, and/or computed tomography. Endoscopic retrograde cholangiography was also performed if a recurrent biliary problem was suspected. RESULTS After a median 43 months (range 23 to 80) of follow-up, 5 patients in group A developed bile duct stones whereas 12 patients in group B had recurrent stones; 4 patients in group A versus 6 patients in group B had recurrent biliary symptoms. One patient in group A and 5 patients in group B with recurrent biliary stones were without symptoms. In group B, the age, gender, diameter of the bile duct, preexisting cholelithiasis, abnormal filling of the gallbladder on quantitative cholescintigraphy, and presence of juxtapapillary diverticulum were not found to be the significant factors affecting the recurrence of biliary symptoms or stones. Endoscopic removal of recurrent biliary stones was successful in all patients. Three patients in group B underwent cholecystectomy after abatement of symptoms. CONCLUSION Elective cholecystectomy after endoscopic sphincterotomy does not reduce the incidence of recurrent biliary complications.
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Affiliation(s)
- K H Lai
- Department of Internal Medicine, Veterans General Hospital Kaohsiung, National Yang Ming University, Taiwan, Republic of China
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