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Ecosystem carbon storage and sink/source of temperate forested wetlands in Xiaoxing’anling, northeast China

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Journal of Forestry Research 2022年第3期33卷 839-849页

作者： Biao Wang Changcheng Mu Huicui Lu na Li Yan Zhang Li ma Center for Ecological Research Northeast Forestry UniversityHarbin150040People’s Republic of China Faculty of Forestry Qingdao Agricultural UniversityQingdao266000People’s Republic of China

Wetlands play an important role in the global carbon cycle, but there are still considerable uncertainties in the estimation of wetland carbon storage and a dispute on whether wetlands are carbon sources or carbon sinks. Xiaoxing’anling are one of several concentrated distribution areas of forested wetland in China, but the carbon storage and carbon sink/source of forested wetlands in this area is unclear. We measured the ecosystem carbon storage (vegetation and soil), annual net carbon sequestration of vegetation and annual carbon emissions of soil heterotrophic respiration of five typical forested wetland types (alder swamp, white birch swamp, larch swamp, larch fen, and larch bog) distributed along a moisture gradient in this area in order to reveal the spatial variations of their carbon storage and quantitatively evaluate their position as carbon sink or source according to the net carbon balance of the ecosystems. The results show that the larch fen had high carbon storage (448.8 t ha^(−1)) (6.8% higher than the larch bog and 10.5–30.1% significantly higher than other three wetlands (P ite birch swamp and larch bog were medium carbon storage ecosystems (406.3 and 420.1 t ha^(−1)) (12.4–21.8% significantly higher than the other two types (P ile the alder swamp and larch swamp were low in carbon storage (345.0 and 361.5 t ha^(−1), respectively). The carbon pools of the five wetlands were dominated by their soil carbon pools (88.5–94.5%), and the vegetation carbon pool was secondary (5.5–11.5%). At the same time, their ecosystem net carbon balances were positive (0.1–0.6 t ha^(−1) a^(−1)) because the annual net carbon sequestration of vegetation (4.0–4.5 t ha^(−1) a^(−1)) were higher than the annual carbon emissions of soil heterotrophic respiration (CO_(2) and CH_(4)) (3.8–4.4 t ha^(−1) a^(−1)) in four wetlands, (the alder swamp being the exception), so all four were carbon sinks while only the alder swamp was a source of carbon emissio

关键词： Temperate forested wetlands Ecosystem carbon storage Carbon sink or source Xiaoxing’anling of China

CCL5 as a potential immunotherapeutic target in triple-negative breast cancer

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Cellular & Molecular immunology 2013年第4期10卷 303-310页

作者： Dandan Lv Yan Zhang ha-Jeong Kim Lixing Zhang Xiaojing ma Sheng Yushou Center of Cell Biology and immunology School of Life Science and Biotechnology Shanghai Jiaotong University Shanghai China Department of Microbiology and immunology Weill Cornell Medical College New York NY USA

Breast cancer （BC） is a leading cause of mortality among women in the world. To date, a number of molecules have been established as disease status indicators and therapeutic targets. The best known among them are estrogen receptor-α （ER-α）, progesterone receptor （PR） and H ER-2/neu. About 15%-20% BC patients do not respond effectively to thera pies targeting these classes of tumor-promoting factors. Thus, additional targets are strongly and urgently sought after in therapy for human BCs negative for ER, PR and HER-2, the so-called triple-negative BC （TNBC）. Recent clinical work has revealed that CC chemokine ligand 5 （CCL5） is strongly associated with the progression of BC, particularly TNBC. How CCL5 contributes to the development of TN BC is not well understood. Experimental animal studies have begun to address the mechanistic issue. in this article, we will review the clinical and laboratory work in this area that has led to our own hypothesis that targeting CCL5 in TNBCs will have favorable therapeutic outcomes with minimal adverse impact on the general physiology.

关键词： triple negative breast cancer CCL5 myeloid derived suppressor cell immunotherapy

Detection of D2-40 monoclonal antibody-labeled lymphatic vessel invasion in esophageal squamous cell carcinoma and its clinicopathologic significance

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Cancer Biology & Medicine 2013年第2期10卷 81-85页

作者： Bing Bai Wei ma Kai Wang Sita ha Jian-Bo Wang Bing-Xu Tan na-na Wang Sheng-Si Yang Yi-Bin Jia Yu-Feng Cheng Department of Radiation Oncology Qilu Hospital of Shandong University Department of Oncology Yiyuan Chi- nese Medicine Hospital Department of Oncology Wendeng Central Hospital Department of Cell Pathology Graduate School of Medical Sciences Kumamoto University

Objective： This study aims to investigate the clinicopathologic significance of lymphatic vessel invasion （LVi） labeled by D2-40 monoclonal antibody in esophageal squamous cell carcinoma （ESCC）. Methods： immunohistochemical assay was used to detect the expression of D2-40 and LVi in 107 ESCC patients. Then, the correlation between the clinicopathologic feature and the overall survival time of the patients was analyzed. Results： The lymph node metastasis rates were 70% and 21% in the LVi-positive and LVi-negative groups, respectively. The nodal metastasis rate was higher in the LVi-positive group than in the LVi-negative group. Multivariate regression analysis showed that LVi was related to nodal metastasis （P〈0.001）. The median survival time of the patients was 26 and 43 months in the LVi-positive and LVi-negative groups, respectively. Mthough univariate regression analysis showed significant difference between the two groups （P=0.014）, multivariate regression analysis revealed that LVi was not an independent prognostic factor for overall survival in the ESCC patients （P=0.062）. Lymphatic node metastasis （P=0.031）, clinical stage （P=0.019）, and residual tumor （P=0.026） were the independent prognostic factors. Conclusion： LVi labeled by D2-40 monoclonal antibody is a risk factor predictive of lymph node metastasis in ESCC patients.

关键词： Esophageal squamous cell carcinoma lymphatic vessel invasion D2-40 lymph node metastasis prognosis

Visible-to-near-infrared photodetector based on graphene–MoTe2–graphene heterostructure

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Chinese Physics B 2019年第11期28卷 354-359页

作者： Rui-Xue Hu Xin-Li ma Chun-ha An Jing Liu State Key Laboratory of Precision Measurement Technology and instrument School of Precision Instruments and Opto-electronics EngineeringTianjin UniversityTianjin 300072China

Graphene and transition metal dichalcogenides(TMDs), two-dimensional materials, have been investigated wildely in recent years. As a member of the TMD family, MoTe2 possesses a suitable bandgap of ~1.0 eV for near infrared(NiR)photodetection. Here we stack the MoTe2 flake with two graphene flakes of high carrier mobility to form a graphene–MoTe2–graphene heterostructure. it exhibits high photo-response to a broad spectrum range from 500 nm to 1300 nm. The photoresponsivity is calculated to be 1.6 A/W for the 750-nm light under 2 V/0 V drain–source/gate bias, and 154 ma/W for the 1100-nm light under 0.5 V/60 V drain–source/gate bias. Besides, the polarity of the photocurrent under zero Vds can be efficiently tuned by the back gate voltage to satisfy different applications. Finally, we fabricate a vertical graphene–MoTe2–graphene heterostructure which shows improved photoresponsivity of 3.3 A/W to visible light.

关键词： two-dimensional materials van der Waals heterostructure transition metal dichalcogenides(TMDs) graphene photodetector

Randomized controlled trial of minimally invasive surgery using acellular dermal matrix for complex anorectal fistula

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World Journal of Gastroenterology 2010年第26期16卷 3279-3286页

作者： ma-Mu-Ti-Jiang A ba-bai-ke-re Er-ha-Ti Ai Anorectal Surgical Department First Aff iliated Hospital of Xinjiang Medical University

AiM: To compare the efficacy and safety of acellular dermal matrix (ADM) bioprosthetic material and endorectal advancement flap (ERAF) in treatment of complex anorectal fistula. METHODS: Ninety consecutive patients with complex anorectal fistulae admitted to Anorectal Surgical Department of First Affi liated Hospital, Xinjiang Medical University from march 2008 to July 2009, were enrolled in this study. Complex anorectal fistula was diagnosed following its clinical, radiographic, or endoscopic diagnostic criteria. Under spinal anesthesia, patients underwent identification and irrigation of the fistula tracts using hydrogen peroxide. ADM was securely sutured at the secondary opening to the primary opening using absorbable suture. Outcomes of ADM and ERAF closure werecompared in terms of success rate, fecal incontinence rate, anorectal deformity rate, postoperative pain time, closure time and life quality score. Success was defined as closure of all external openings, absence of drainage without further intervention, and absence of abscess formation. Follow-up examination was performed 2 d, 2, 4, 6, 12 wk, and 5 mo after surgery, respectively. RESULTS: No patient was lost to follow-up. The overall success rate was 82.22% (37/45) 5.7 mo after surgery. ADM dislodgement occured in 5 patients (11.11%), abscess formation was found in 1 patient, and fistula recurred in 2 patients. Of the 13 patients with recurrent fistula using ERAF, 5 (11.11%) received surgical drainage because of abscess formation. The success rate, postoperative pain time and closure time of ADM were significantly higher than those of ERAF (P ifference was observed in fecal incontinence rate and anorectal deformity rate after treatment with ADM and ERAF. CONCLUSiON: Closure of fistula tract opening with ADM is an effective procedure for complex anorectal fistula. ADM should be considered a first line treatment for patients with complex anorectal fistula.

关键词： Acellular dermal matrix Surgery Transsphincteric complex fistula

Polarized hydroxyapatite/BaTiO_(3) scaffolds with bio-inspired porous structure for enhanced bone penetration

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Rare Metals 2022年第1期41卷 67-77页

作者： Chun-Sheng Shao Liang-Jian Chen Rui-Min Tang Bo Zhang Jiang-Jie Tang Wei-na ma Department of Stomatology Third Xiangya HospitalCentral South UniversityChangsha 410013China

The porous ha/BaTiO_(3)ceramics have the potential to exhibit superior capabilities to promote bone ***,there are few reports on in vivo ***,we fabricated bio-inspired porous ha/BaTiO_(3)composites for bone repair via *** composites had a unique microstructure composed of the central canal and radically distributed lamellae,similar to the structure of nature cortical bone unite,the haversian *** and non-polarized bio-inspired porous ha/BaTiO_(3)samples were implanted into the femoral condyle of the New Zealand *** was demonstrated that the polarization of the porous ha/BaTiO_(3)played a favorable part in bone ***,the combination between the osteoconductivity of the microstructure and augmented osteogenic cell behavior induced by charges on surfaces of polarized porous ha/BaTiO_(3)facilitated bone penetration through the *** bio-inspired porous ha/BaTiO_(3)composites are demonstrated to be promising scaffolds for bone repair.

关键词： Porous materials Freeze-casting Hydroxyapatite BaTiO_(3) Bone regeneration

Degradation and biological performance of porous osteomimetic biphasic calcium phosphate in vitro and in vivo

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Rare Metals 2022年第2期41卷 457-468页

作者： Chun-Sheng Shao Liang-Jian Chen Rui-Min Tang Bo Zhang Jiang-Jie Tang Wei-na ma Department of Stomatology Third Xiangya HospitalCentral South UniversityChangsha 410013China

The combination between biphasic calcium phosphate(BCP)and the osteomimetic porous microstructure obtained via freeze casting is hoped to achieve excellent bone regeneration,while the effects of ha and b-TCP ratio changes on the degradation and biological performance of the BCP scaffolds with this unique microstructure need to be ***,we prepared the osteomimetic BCP scaffolds with different ha/b-TCP ratios(ha30/b-TCP70,ha50/b-TCP50,ha70/b-TCP30)and the effects of different ha/b-TCPha/b-TCP ratios on the degradation and biological performance were studied in vitro and *** BCP scaffolds with different ha/b-TCP ratios exhibited similar microstructure,mechanical performance,and protein absorption capability,while ha70/b-TCP30 BCP scaffolds showed an advisable degradation *** in vitro confirmed the bio-compatibility and promotion on the proliferation,differentiation of MG63 cells in the porous osteomimetic BCP scaffolds with a ha/b-TCP ratio at 30:*** experiments also showed that the porous osteomimetic BCP scaffolds with a ha/b-TCP ratio at 30:70 had excellent bone regeneration capacity and proper degradation rate compatible with bone *** results reveal that the porous osteomimetic BCP scaffold with a ha/b-TCP ratio at 30:70 is a potential candidate of biodegradable bone substitutes used for bone repair.

关键词： Porous scaffolds Biphasic calcium phosphate Hydroxyapatite b-TCP Degradation

Papillary cystadenoma of the parotid gland: A case report

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World Journal of Clinical Cases 2019年第3期7卷 366-372页

作者： Li Wang Shi-Kun Zhang Ying ma Patrick K ha Zhi-Ming Wang Department of Oral and maxillofacial Surgery Shengjing Hospital of China Medical University Department of Pathology Shengjing Hospital of China Medical University Division of Head and Neck Oncologic and Endocrine Surgery Department of Otolaryngology-Head and Neck Surgery University of California-San Francisco

BACKGROUND Papillary cystadenoma is a rare benign epithelial tumor of the salivary gland,which is characterized by papillary structures and oncocytic cells with rich eosinophilic cytoplasm. We found only one case of papillary cystadenoma in nearly 700 cases of salivary gland tumors. Our case was initially mistaken for a tumor of the right temporomandibular joint(TMJ) capsule rather than of parotid gland origin. Preoperative magnetic resonance imaging(MRi) and computed tomography(CT) should be carefully studied, which allows for appropriate preoperative counseling and operative *** SUMmaRY Here, we report an unusual case of a 54-year-old woman with a parotid gland papillary cystadenoma(PGPC) that was misdiagnosed as a tumor of the right TMJ capsule. She was initially admitted to our hospital due to a mass anterior to her right ear inadvertently found 5 d ago. Preoperative CT and MRi revealed a well circumscribed tumor that was attached to the right TMJ capsule. The patient underwent a resection through an incision for TMJ, but evaluation of an intraoperative frozen section revealed a benign tumor of the parotid gland. Then we removed part of the parotid gland above the temporal facial trunk. The facial nerve was preserved. Postoperative histopathological findings revealed that the tumor was PGPC. No additional treatment was performed. There was no recurrence during a 20-mo follow-up *** The integrity of the interstitial space around the condyle in MRi or CT should be carefully evaluated for parotid gland or TMJ tumors.

关键词： Papillary cystadenoma Parotid gland Temporomandibular joint Case report

A novel electrolytic-manganese-residues-and-serpentine-based composite(S-EMR) for enhanced Cd(Ⅱ) and Pb(Ⅱ) adsorption in aquatic environment

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Rare Metals 2023年第1期42卷 346-358页

作者： Meng-Yu ma Xuan Ke Yan-Chang Liu Zhi-hao ha Ting Wang Jia Li Fan Zhang Tian C.Zhang College of Resources and Environmental Science South-Central Minzu UniversityWuhan430074China School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan430074China College of Engineering University of Nebraska-LincolnOmahaNE68182USA

Electrolytic manganese residue(EMR) is the waste slag generated from the electrolysis manganese *** a promising exploitable adsorbent,EMR has become a hot research ***,EMR’s low adsorption capacity has limited its applications as an efficient *** this study,the EMR was mixed with serpentine and calcined(at 800℃ for 2 h) to prepare a composite adsorbent(S-EMR) with its specific surface area of 11.998 m^(2)·g^(-1)(increased compared to the original EMR) and improved adsorption capacities for Cd^(2+)(98.05 mg·g^(-1)) and Pb^(2+)(565.81 mg·g^(-1)).Kinetic studies have shown that the pseudo-first-order kinetics(PSO)model could best describe the adsorption kinetics of S-EMR for Cd^(2+)/Pb^(2+),implying that the chemisorption process is the rate-limiting *** effects of different interfering ions on S-EMR’ s adsorption for Cd^(2+)/Pb^(2+)may be due to the difference in their *** of response surface methodology tests showed that pH had the highest influence on adsorption,and the removal efficiency of S-EMR reached 99.92% for Cd(Ⅱ) and 94.00%for Pb(Ⅱ).X-ray photoelectron spectroscopy(XPS) analyses revealed that chemical precipitation was the predominant mechanism for Cd^(2+)/Pb^(2+)removal,and the adsorption mechanisms were associated with ion exchange and electrostatic *** results showed that S-EMR could be used as an effective adsorbent for the removal of Cd(Ⅱ)/Pb(Ⅱ) from water bodies,rendering dual benefits of pollution control and resource recovery.

关键词： Cadmium Lead Electrolytic manganese residue Serpentine Heavy metals