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The global significance of biodiversity science in China:an overview

National Science Review 2021年第7期8卷 34-58页

作者： Xiangcheng Mi Gang Feng Yibo Hu Jian Zhang Lei Chen Richard T.Corlett Alice C.Hughes Stuart Pimm Bernhard Schmid Suhua Shi Jens-Christian Svenning Keping Ma State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau and Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and Environment Inner Mongolia University Key Laboratory of Animal Ecology and Conservation Biology Institute of Zoology Chinese Academy of Sciences Zhejiang Tiantong Forest Ecosystem National Observation and Research Station School of Ecological and Environmental Sciences East China Normal University Center for Integrative Conservation Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Center of Conservation Biology Core Botanical Gardens Chinese Academy of Sciences Nicholas School of the Environment Duke University Department of Geography Remote Sensing Laboratories University of Zurich State Key Laboratory of Biocontrol Guangdong Key Laboratory of Plant Resources Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes School of Life Sciences Sun Yat-Sen University Center for Biodiversity Dynamics in a Changing World (BIOCHANGE) and section for Ecoinformatics and Biodiversity Department of Biology Aarhus University University of Chinese Academy of Sciences

Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau. We review research, including species catalogues; biodiversity monitoring; the origins, distributions, maintenance and threats to biodiversity; biodiversity-related ecosystem function and services; and species and ecosystems’ responses to global change. Next, we identify priority topics and offer suggestions and priorities for future biodiversity research in China. These priorities include(i) the ecology and biogeography of the Qinghai-Tibetan Plateau and surrounding mountains, and that of subtropical and tropical forests across China;(ii) marine and inland aquatic biodiversity; and(iii) effective conservation and management to identify and maintain synergies between biodiversity and socio-economic development to fulfil China’s vision for becoming an ecological civilization. In addition, we propose three future strategies:(i) translate advanced biodiversity science into practice for biodiversity conservation;(ii) strengthen capacity building and application of advanced technologies, including high-throughput sequencing, genomics and remote sensing; and(iii) strengthen and expand international *** on the recent rapid progress of biodiversity research, China is well positioned to become a global leader in biodiversity research in the near future.

关键词： biodiversity inventory biodiversity maintenance biodiversity monitoring biodiversity origins biodiversity-ecosystem functioning

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Preparation of multigradient hydroxyapatite scaffolds and evaluation of their osteoinduction properties

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Regenerative biomaterials 2022年第1期9卷 189-201页

作者： Hao Huang Anchun Yang Jinsheng Li Tong Sun Shangke Yu Xiong Lu Tailin Guo Ke Duan Pengfei Zheng Jie Weng Key Laboratory of advanced Technologies of Materials(MOE) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031P.R.China Engineering Laboratory of Orthopedic Implant Device Development and Application Technology Clinical College of MedicineSouthwest Medical UniversityLuzhou 646000P.R.China Department of Orthopaedic surgery Children’s Hospital of Nanjing Medical UniversityNanjing 210008P.R.China

Porous hydroxyapatite(HA)scaffolds are often used as bone repair materials,owing to their good biocompatibility,osteoconductivity and low *** and osteoinductivity of porous HA scaffolds were limited in clinical application,and these disadvantages were need to be improved *** used water-in-oil gelation and pore former methods to prepare HA spheres and a porous cylindrical HA container,*** prepared HA spheres were filled in container to assemble into composite *** adjusting the solid content of the slurry(solid mixture of chitin sol and HA powder)and the sintering temperature,the porosity and crystallinity of the HA spheres could be significantly improved;and mineralization of the HA spheres significantly improved the biological activity of the composite *** multigradient(porosity,crystallinity and mineralization)scaffold(HA-700)filled with the mineralized HA spheres exhibited a lower compressive strength;however,in vivo results showed that their vascularization ability were higher than those of other groups,and their osteogenic Gini index(Go:an index of bone mass,and inversely proportional to bone mass)showed a continuous decrease with the implantation *** study provides a new method to improve porous HA scaffolds and meet the demands of bone tissue engineering applications.

关键词： porous hydroxyapatite scaffold biocompatibility osteoinduction bone tissue engineering

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Bisphosphonates and adipogenesis: Evidence for alendronate inhibition of adipocyte differentiation in 3T3-L1 preadipocytes through a vitamin D receptor mediated effect

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Natural Science 2013年第8期5卷 955-962页

作者： C. Mammi M. Calanchini A. Antelmi A. Feraco L. Gnessi S. Falcone F. Quintarelli G. M. Rosano A. Fabbri M. Caprio Department of Experimental Medicine Section of Medical Physiopathology and Endocrinology Sapienza University of Rome Rome Italy Department of Medical Sciences Centre of Clinical and Basic Research IRCCS San Raffaele Pisana Rome Italy Unit of Endocrinology S. Eugenio & CTO A. Alesini Hospitals Department of Internal Medicine University of Rome “Tor Ver- gata” Rome Italy Unit of Endocrinology S. Eugenio & CTO A. Alesini Hospitals Department of Internal Medicine University of Rome “Tor Vergata” Rome Italy

Background: Adipocyte and osteoblast derive from the same mesenchimal progenitor. Age-related decrease in bone mass is accompanied by an increase in marrow adipose tissue. Vitamin D3 (VD3) inhibits adipogenesis in 3T3-L1 preadipocytes. Recently it has been demonstrated that alendronate (ALN) inhibits adipogenesis while promoting osteoblast differentiation of mesenchimal stem cells. Aim of the Study: To evaluate the role of ALN on adipocyte differentiation in vitro and the potential synergic role of VD3 co-treatment. Procedures: Murine 3T3-L1 and 3T3-F442A preadipocytes were routinely differentiated in presence of ALN and VD3 10-9 - 10-7 M for 7 days and then stained with Oil Red O. The effect of these treatments on mRNA expression of the main molecular markers of adipocyte differentiation (PPARγ and C/EBPα) and VD Receptor (VDR) were analyzed through RT-PCR. Results: Both ALN and VD3 showed a marked anti-adipogenic effect on 3T3-L1 cells. Co-incubation of ALN 10-8 M and VD3 10-9 M displayed no synergic effect on inhibition of adipogenesis. PPARγ mRNA expression was significantly reduced by ALN and VD3. mRNA expression of C/EBPα was reduced only by VD3 treatment. An increase in VDR mRNA expression of 3T3-L1 cells was observed with both ALN and VD3. On the contrary, 3T3-F442A cells, which are in a more advanced adipogenic differentiation stage compared to 3T3-L1, did not express detectable levels of VDR. Interestingly, adipose differentiation of 3T3-F442A was not affected by ALN nor VD3. These results suggest that VDR may represent the molecular target of the anti-adipogenic effect of ALN. Conclusion: VDR plays a critical role in mediating the anti-adipogenic effect of ALN. Further studies to clarify this mechanism are warranted.

关键词： Alendronate Adipogenesis Vitamin D Vitamin D Receptor 3T3-L1 Mesenchimal Stem Cells

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Collecting Duct (Bellini Duct) Renal Cell Carcinoma: Oncologic Outcome and Therapeutic Management

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Journal of Cancer Therapy 2017年第5期8卷 413-422页

作者： Yuejun Du Sascha Pahernik Matthias Kwol Stefan Fuxius Boris Hadaschik Dogu Teber Stefan Duensing Annette Kaiser Markus Hohenfellner Carsten Grüllich Department of Urology Heidelberg University Hospital Heidelberg Germany Department of Urology Nanfang Hospital of Southern Medical University Guangzhou China Department of Urology Nuremberg General Hospital Paracelsus Medical University Nuremberg Germany Praxis for Onkologie Heidelberg Germany section of Molecular Urooncology Department of Urology Heidelberg University Hospital Heidelberg Germany Clinic for Pathology Nuremberg General Hospital Paracelsus Medical University Nuremberg Germany Department of Medical Oncology National Center for Tumor Diseases Heidelberg University Hospital Heidelberg Germany

Objectives: To evaluate treatment and prognosis of collecting duct renal cell carcinoma (CDRCC) in three institutions. Methods: The data of CDRCC patients were collected retrospectively from 3 participating institutions. Results: A total of 24 patients were identified in 3 institutions with an incidence of 0.5% - 0.6%. Among them, the median age was 63.0 years and male gender was predominant (66.7%). At least 45.7% (11/24) of the patients were symptomatic at presentation. Moreover, distant metastasis at initial diagnosis was present in 13 patients (54.2%) and 6 patients (25.0%) developed distant metastasis during the course of disease. Almost all these patients were at high stage (87.5%) and poorly differentiated (79.2%). Besides, nodal involvement and major vein extension were observed in 14 (58.3%) and 10 (41.7%) patients, respectively. All the patients in this cohort underwent surgery with a median cancer specific survival of 11.3 months. Of the 14 patients with chemotherapy, gemcitabine/cisplatin was dominantly given in 6 patients (42.9%). Conclusions: CDRCC is rarely seen. Most of CDRCC patients had advanced stage, high nuclear grade, regional nodal involvement, distant metastasis at presentation and consequent poor prognosis. To date, no standard protocol for the treatment of CDRCC exists. Current standard in systemic therapy of CDRCC is chemotherapy with gemcitabine and cisplatin.

关键词： Bellini Duct Collecting Duct Prognosis Renal Cell Cancer Treatment

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Biphasic mineralized collagen-based composite scaffold for cranial bone regeneration in developing sheep

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Regenerative biomaterials 2022年第1期9卷 280-293页

作者： Jingchuan Zheng Zhijun Zhao Yongdong Yang Shuo Wang Yonggang Zhao Yang Xiong Shuhui Yang Zhiye Qiu Tianxi Song Chunyang Zhang Xiumei Wang State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Department of Neurosurgery The First Affiliated Hospital of Baotou Medical SchoolBaotou 014010China Dongzhimen Hospital Affiliated Beijing University of Chinese Medicine Beijing 100700China Beijing Allgens Medical Science and Technology Co. Ltd.Beijing 100176China

Appropriate mechanical support and excellent osteogenic capability are two essential prerequisites of customized implants for regenerating large-sized cranial bone *** porous bone scaffolds have been widely proven to promote bone regeneration,their weak mechanical properties limit the clinical applications in ***,we applied two previously developed mineralized collagen-based bone scaffolds(MC),porous MC(pMC)and compact MC(cMC)to construct a biphasic MC composite bone scaffold(bMC)to repair the large-sized cranial bone defect in developing sheep.A supporting frame composed of cMC phase in the shape of tic–tac–toe structure was fabricated first and then embedded in pMC *** two phases had good interfacial bond,attributing to the formation of an interfacial *** in vivo performance of the bMC scaffold was evaluated by using a cranial bone defect model in 1-month-old *** computed tomography imaging,X-ray scanning and histological evaluation showed that the pMC phase in the bMC scaffold,similar to the pMC scaffold,was gradually replaced by the regenerative bone tissues with comprehensively increased bone mineral density and complete connection of bone bridge in the whole *** cMC frame promoted new bone formation beneath the frame without obvious degradation,thus providing appropriate mechanical protection and ensuring the structural integrity of the *** general,the sheep with bMC implantation exhibited the best status of survival,growth and the repair *** biphasic structural design may be a prospective strategy for developing new generation of cranioplasty materials to regenerate cranial bone defect in clinic.

关键词： mineralized collagen cranial bone defect biphasic composite scaffold,developing sheep

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DNA-based supramolecular hydrogels:From construction strategies to biomedical applications

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Chinese Chemical Letters 2023年第12期34卷 76-86页

作者： Ping Chen Chenhong Yu Jie Chen Lijin Xu Huajie Liu jiangsu Engineering Laboratory for Environmental Functional Materials Jiangsu Key Lab for Chemistry of Low-Dimensional MaterialsSchool of Chemistry and Chemical EngineeringHuaiyin Normal UniversityHuaian 223300China School of Chemical Science and Engineering Shanghai Research Institute for Intelligent Autonomous SystemsKey Laboratory of Advanced Civil Engineering Materials of Ministry of EducationTongji UniversityShanghai 200092China Department of Chemistry Renmin University of ChinaBeijing 100872China

DNA-based supramolecular hydrogels are important and promising biomaterials for various applications due to their inherent biocompatibility and tunable physicochemical *** three-dimensional supramolecular matrix of DNA formed by non-covalently dynamic cross-linking provides exceptional adaptability,self-healing,injectable and responsive properties for *** addition,DNA hydrogels are also ideal bio-scaffold materials owing to their tissue-like mechanics and intrinsic biological ***,DNA can assemble into supramolecular networks by pure complementary base pairing;it can also be combined with other building blocks to construct hybrid *** review focuses on the development and construction strategies of DNA *** and synthesis methods,diverse responsiveness and biomedical applications are ***,the challenges and prospects of DNA-based supramolecular hydrogels are discussed.

关键词： DNA hydrogels Supramolecular hydrogels Self-assembly DNA nanotechnology Biomedical applications

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Primary Small Cell Neuroendocrine Carcinoma of the Endometrium: A Cytologically Diagnosed Case with Immunocytochemical, Immunohistochemical, and Electron Microscopic Features

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Open Journal of Pathology 2020年第4期10卷 113-123页

作者： Kentaro Nagata Kenji Niwa Sakae Mori Keigo Kuwabara Motoki Takenaka Yoshio Yamaguchi Kentaro Niwa Takuji Tanaka Department of Obstetrics & Gynecology Gujo City Hospital Gujo City Japan section of Laboratory Medicine Gujo City Hospital Gujo City Japan Department of Obstetrics & Gynecology Gifu University School of Medicine Gifu City Japan Department of Obstetrics & Gynecology Kizawa Memorial Hospital Minokamo City Japan Present Address: Department of Obstetrics & Gynecology University of Fukui Hospital Yoshida-gun Fukui Prefecture Japan Department of Diagnostic Pathology & Research Center of Diagnostic Pathology Gifu Municipal Hospital Gifu City Japan

Endometrial neuroendocrine tumors are rare, accounting less than 1% of endometrial cancers. They include small cell neuroendocrine carcinoma (NEC) and large cell NEC and usually occur in postmenopausal patients. Although common symptoms include postmenopausal bleeding, most patients are diagnosed at an advanced stage. We report an extremely rare case of small cell NEC developed in the endometrium of a 75-year-old Japanese woman. This case was initially suspected based on the findings of endometrial cytology: a number of small round malignant cells were present on the endometrial smear specimens. The immunocytochemical and immunohistochemical examinations revealed diffusely cytoplasmic positive reaction of neuron specific enolase (NSE) and partially membranous positive reaction of CD56 in the small cancer cells. They showed PAX-8-positive reaction, but did not express microsatellite instability high. Electron micrography showed several dense-core secretory granules in the cytoplasm of cancer cells. Despite multiple lung metastases, the patient underwent a hysterectomy and salpingo-oophorectomy in order to control excessive genital bleeding. She received six courses of adjuvant chemotherapy based on etoposide and cisplatin, and survived healthy eight months after the first visit without any viability of lung metastases.

关键词： SCNEC Endometrium NSE Ultrastructure Etoposide and Cisplatin Regimen

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Double crosslinked biomimetic composite hydrogels containing topographical cues and WAY-316606 induce neural tissue regeneration and functional recovery after spinal cord injury

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Bioactive Materials 2023年第6期24卷 331-345页

作者： Xingchang Zhao Xianzhe Lu Kai Li Shiqiang Song Zhaohui Luo Chuanchuan Zheng Chengliang Yang Xiumei Wang Liqiang Wang Yujin Tang Chong Wang Jia Liu Department of Orthopaedics Affiliated Hospital of Youjiang Medical University for NationalitiesBaiseGuangxiChina Guangxi Key Laboratory of Basic and Translational Research of Bone and Joint Degenerative Diseases Guangxi Biomedical Materials Engineering Research Center for Bone and Joint Degenerative DiseasesBaiseGuangxiChina Academy of Orthopedics Guangdong ProvinceGuangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversityGuangzhouChina Youjiang Medical University for Nationalities BaiseGuangxiChina School of Mechanical Engineering Dongguan University of TechnologySongshan LakeDongguanGuangdongChina State Key Laboratory of New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of EducationSchool of Materials Science and EngineeringTsinghua UniversityBeijingChina State Key Laboratory of Metal Matrix Composites School of Material Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina

Spinal cord injury(SCI)is an overwhelming and incurable disabling condition,for which increasing forms of multifunctional biomaterials are being tested,but with limited *** promising material should be able to fill SCI-induced cavities and direct the growth of new neurons,with effective drug loading to improve the local micro-organism environment and promote neural tissue *** this study,a double crosslinked biomimetic composite hydrogel comprised of acellularized spinal cord matrix(ASCM)and gelatin-acrylated-β-cyclodextrin-polyethene glycol diacrylate(designated G-CD-PEGDA)hydrogel,loaded with WAY-316606 to activate canonical Wnt/β-catenin signaling,and reinforced by a bundle of three-dimensionally printed aligned polycaprolactone(PCL)microfibers,was *** G-CD-PEGDA component endowed the composite hydrogel with a dynamic structure with a self-healing capability which enabled cell migration,while the ASCM component promoted neural cell affinity and *** diffusion of WAY-316606 could recruit endogenous neural stem cells and improve neuronal *** aligned PCL microfibers guided neurite elongation in the longitudinal *** behavior studies further showed that the composite hydrogel could significantly recover the motor function of rats after *** study provides a proficient approach to produce a multifunctional system with desirable physiological,chemical,and topographical cues for treating patients with SCI.

关键词： Spinal cord injury 3D printing PCL oriented fibers WAY-316606 Wnt/β-catenin signaling

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Additive nanomanufacturing of lab-on-a-chip fluorescent peptide nanoparticle arrays for Alzheimer＇s disease diagnosis

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Bio-Design and Manufacturing 2018年第3期1卷 182-194页

作者： Leming Sun Zhen Fan Tao Yues Jun Yin Jianzhong FU Mingjun Zhang Department of Biomedical Engineering College ofEngineering Ohio State University Columbus OH 43210USA School of Life Sciences Northwestern PolytechnicalUniversity Xi'an 710072 Shaanxi China Department of Polymeric Materials School of MaterialScience and Engineering Tongji UniversityShanghai 201804 China Institute for advanced Study TongjiUniversity Shanghai 200092 China School of Mechatronic Engineering and Automation Shanghai University Shanghai 200444 China The State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering ZhejiangUniversity Hangzhou 310028 China Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province School of Mechanical EngineeringZhejiang University Hangzhou 310028 China Dorothy M. Davis Heart & Lung Research Institute The OhioState University Wexner Medical Center Columbus OH43210 USA Interdisciplinary Biophysics Graduate Program Ohio StateUniversity Columbus OH 43210 USA

This paper proposes an additive nanomanufacturing approach to fabricate a personalized lab-on-a-chip fluorescent peptide nanoparticles （f-PNPs） array for simultaneous multi-biomarker detection that can be used in Alzheimer＇s disease （AD） diagnosis. We will discuss optimization techniques for the additive nanomanufacturing process in terms of reliability, yield and manufacturing efficiency. One contribution of this paper lies in utilization of additive nanomanufacturing techniques to fabricate a patient-specific customize-designed lab-on-a-chip device for personalized AD diagnosis, which remains a major challenge for biomedical engineering. Through the integrated bio-design and bio-manufacturing process, doctor＇s check- up and computer-aided customized design are integrated into the lab-on-a-chip array for patient-specific AD diagnosis. In addition, f-PNPs with targeting moieties for personalized AD biomarkers will be self-assembled onto the customized lab-on-a- chip through the additive nanomanufacturing process, which has not been done before. Another contribution of this research is the personalized lab-on-a-chip f-PNPs array for AD diagnosis utilizing limited human blood. Blood-based AD assessment has been described as ＂the holy grail＂ of early AD detection. This research created the computer-aided design, fabrication through additive nanomanufacturing, and validation of the f-PNPs array for AD diagnosis. This is a highly interdisciplinary research contributing to nanotechnology, biomaterials, and biomedical engineering for neurodegenerative disease. The conceptual work is preliminary with intent to introduce novel techniques to the application. Large-scale manufacturing based on the proposed framework requires extensive validation and optimization.

关键词： Nanomanufacturing Lab-on-a-chip Fluorescent peptide nanoparticle Alzheimer's disease Diagnosis

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Mirror-enhanced super-resolution microscopy

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Light(Science & Applications) 2016年第1期5卷 357-364页

作者： Xusan Yang Hao Xie Eric Alonas Yujia Liu Xuanze Chen Philip J Santangelo Qiushi Ren Peng Xi Dayong Jin Department of Biomedical Engineering College of EngineeringPeking UniversityNo.5 Yiheyuan RoadBeijing 100871China Wallace H Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory UniversityAtlantaGA 30332USA advanced Cytometry Labs ARC Centre of Excellence for Nanoscale BioPhotonics(CNBP)Macquarie UniversitySydneyNSW 2109Australia Institute for Biomedical Materials and Devices(IBMD) Faculty of ScienceUniversity of Technology SydneySydneyNSW 2007Australia

Axial excitation confinement beyond the diffraction limit is crucial to the development of next-generation,super-resolution *** Emission Depletion(STED)nanoscopy offers lateral super-resolution using a donut-beam depletion,but its axial resolution is still over 500 *** internal reflection fluorescence microscopy is widely used for single-molecule localization,but its ability to detect molecules is limited to within the evanescent field of~100 nm from the cell attachment *** find here that the axial thickness of the point spread function(PSF)during confocal excitation can be easily improved to 110 nm by replacing the microscopy slide with a *** interference of the local electromagnetic field confined the confocal PSF to a 110-nm spot axially,which enables axial super-resolution with all laser-scanning *** sectioning can be obtained with wavelength modulation or by controlling the spacer between the mirror and the *** no additional complexity,the mirror-assisted excitation confinement enhanced the axial resolution six-fold and the lateral resolution two-fold for STED,which together achieved 19-nm resolution to resolve the inner rim of a nuclear pore complex and to discriminate the contents of 120 nm viral *** ability to increase the lateral resolution and decrease the thickness of an axial section using mirror-enhanced STED without increasing the laser power is of great importance for imaging biological specimens,which cannot tolerate high laser power.

关键词： confocal interference point spread function super-resolution

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