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Néri A, Man L, Chantel J, Farla R, Bauer G, Linhardt S, Boffa Ballaran T, Frost DJ. The development of internal pressure standards for in-house elastic wave velocity measurements in multi-anvil presses. Rev Sci Instrum 2024; 95:013902. [PMID: 38193822 DOI: 10.1063/5.0169260] [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] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/12/2023] [Indexed: 01/10/2024]
Abstract
Ultrasonic systems are powerful tools to determine elastic wave velocities of minerals and materials at high pressure and temperature and have been extensively developed in recent decades. However, accurate measurement of sample length is required to convert travel times into wave velocities, limiting their use to synchrotron facilities or room temperature experiments in laboratories. We have made use of a close collaboration between the Bayerisches Geoinstiut and the P61B end-station beamline (PETRA III - DESY) to install ultrasonic systems and develop a novel dual travel time method for in situ pressure determination without the need for synchrotron radiation. Our method relies on the travel times of elastic waves through a reference material; it requires a thermocouple and is non-intrusive, with the reference material replacing the backing plate of the high-pressure assembly. Pressures obtained from this dual travel time method show excellent agreement with those obtained from x-ray diffraction using synchrotron radiation on standard materials. Our novel method enables in situ pressure determination at varying temperatures during in-house ultrasonic interferometry experiments. This allows us not only to determine the elastic behavior of minerals and materials but also to investigate phase diagrams, solidus, or liquidus conditions at varying pressures and temperatures during in-house experiments. During the installation of the pulse-echo ultrasonic system, we identified critical parameters for obtaining reliable data. While these requirements are well-known to experts, this study presents a comprehensive review of the different characteristics of ultrasonic systems, providing user-friendly guidelines for new users installing and operating such systems in high-pressure and high-temperature conditions.
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Affiliation(s)
- A Néri
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - L Man
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - J Chantel
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
| | - R Farla
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | - G Bauer
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - S Linhardt
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - T Boffa Ballaran
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
| | - D J Frost
- Bayerisches Geoinstitut, University of Bayreuth, Bayreuth, Germany
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He P, Sardans J, Wang X, Ma C, Man L, Peñuelas J, Han X, Jiang Y, Li MH. Nutritional changes in trees during drought-induced mortality: A comprehensive meta-analysis and a field study. Glob Chang Biol 2024; 30:e17133. [PMID: 38273504 DOI: 10.1111/gcb.17133] [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] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 01/27/2024]
Abstract
Both macronutrients and micronutrients are essential for tree growth and development through participating in various ecophysiological processes. However, the impact of the nutritional status of trees on their ability to withstand drought-induced mortality remains inconclusive. We thus conducted a comprehensive meta-analysis, compiling data on 11 essential nutrients from 44 publications (493 independent observations). Additionally, a field study was conducted on Pinus sylvestris L. trees with varying drought-induced vitality loss in the "Visp" forest in southern Switzerland. No consistent decline in tree nutritional status was observed during tree mortality. The meta-analysis revealed significantly lower leaf potassium (K), iron (Fe), and copper (Cu) concentrations with tree mortality. However, the field study showed no causal relationships between nutritional levels and the vitality status of trees. This discrepancy is mainly attributed to the intrinsic differences in the two types of experimental designs and the ontogenetic stages of target trees. Nutrient reductions preceding tree mortality were predominantly observed in non-field conditions, where the study was conducted on seedlings and saplings with underdeveloped root systems. It limits the nutrient uptake capacity of these young trees during drought. Furthermore, tree nutritional responses are also influenced by many variables. Specifically, (a) leaf nutrients are more susceptible to drought stress than other organs; (b) reduced tree nutrient concentrations are more prevalent in evergreen species during drought-induced mortality; (c) of all biomes, Mediterranean forests are most vulnerable to drought-induced nutrient deficiencies; (d) soil types affect the direction and extent of tree nutritional responses. We identified factors that influence the relationship between tree nutritional status and drought survival, and proposed potential early-warning indicators of impending tree mortality, for example, decreased K concentrations with declining vitality. These findings contribute to our understanding of tree responses to drought and provide practical implications for forest management strategies in the context of global change.
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Affiliation(s)
- Peng He
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, China
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
| | - Jordi Sardans
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia, Spain
- CREAF, Cerdanyola del Vallès, Catalonia, Spain
| | - Xiaoyu Wang
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- Jiyang College, Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Chengcang Ma
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, China
| | - Liang Man
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, China
| | - Josep Peñuelas
- CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, Catalonia, Spain
- CREAF, Cerdanyola del Vallès, Catalonia, Spain
| | - Xingguo Han
- College of Life Sciences, Hebei University, Baoding, China
| | - Yong Jiang
- College of Life Sciences, Hebei University, Baoding, China
| | - Mai-He Li
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland
- College of Life Sciences, Hebei University, Baoding, China
- Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, China
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Man L, Lustgarten Guahmich N, Kallinos E, Bodine R, Zaninovic N, Schattman G, Rosenwaks Z, James D. P-478 Deleterious influence of cyclophosphamide on primordial follicles derives from increased DNA damage and reduced proliferation in xenotransplanted human ovarian tissue. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.450] [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: 11/12/2022] Open
Abstract
Abstract
Study question
What are the acute effects of cyclophosphamide (Cp) on primordial follicles (PrFs) in human ovarian tissue?
Summary answer
Administration of Cp damages PrFs via DNA fragmentation and results in reduced proliferation with no increase in PrF activation markers.
What is known already
Alkylating agents are highly gonadotoxic, and in cases where freezing oocytes, embryos, or ovarian tissue is impractical, a better understanding of the underlying damage mechanism could enable development of fertoprotective approaches (1). Studies from different groups suggest conflicting mechanisms of ovarian damage, with either PrF activation (2) or cell damage and apoptosis (3-4) proposed as drivers of PrF depletion. Few studies have examined this question using human tissue. We performed xenografts using ovarian tissue from a 17-month-old girl to ensure a graft with plentiful PrFs to test the acute effect of Cp.
Study design, size, duration
Cross-sectional study.
We utilized a xenotransplantation model in which human ovarian tissue is co-transplanted with endothelial cells (ECs) into immunocompromised mice (NSG) (5). Three weeks after xenotransplantation, time 0, intraperitoneal (IP) injection of (saline/Cp) was followed by an IP injection of ethynyl-deoxyuridine (Edu), at 0 and 24 hours, followed by 5-chloro-2′-deoxyuridine (CldU), at 48 and 72 hours. Grafts were harvested at 96 hours.
Participants/materials, setting, methods
We co-xenotransplanted human ovarian cortical tissue from a 17-month-old girl, cryopreserved for fertility preservation, into immunocompromised mice. After 3 weeks, Cp (75mg/Kg)/saline was administered IP. Mice were then sequentially injected with EdU, followed by CldU (both at 100mg/kg for 2 days) 24 hours apart. Twenty-four hours later, mice were sacrificed and xenografts were harvested and sectioned. Slides were stained for EdU, CldU, VASA, γ-H2AX, FOXO3a, and 4',6-Diamidino-2-Phenylindole-Dilactate (DAPI) and imaged using a confocal microscope.
Main results and the role of chance
We used anti-VASA staining to evaluate oocyte morphology, confirming that chemotherapy was not sterilizing; we counted 76.5% of morphologically normal PrF in the control group (Ctrl) (130/170) and 35.1% (13/37) in the Cp group. In the Ctrl group, 11% stained positively for DNA fragmentation using anti-γ-H2AX, whereas 43% were positive in the Cp group (p = 0.0073). To evaluate activation, we stained for FOXO3a in the oocyte nucleus. No difference was found between the groups: 52.4% (74/144) versus 44.6% (37/83) in Ctrl versus Cp, respectively. Interestingly, when comparing EdU incorporation, the Ctrl group had higher incorporation at 72%, versus the Cp group with 40% of incorporation (p = 0.0485), and no difference was found with CldU incorporation: Ctrl 22% versus 27% in the Cp group, respectively (P = 0.6960).
Limitations, reasons for caution
We measured acute effects, DNA fragmentation, and proliferation, at five days post-Cp administration; however, this falls short of evaluating processes that appear later (fibrosis and neovascularization). Also, the results may partly stem from the patient’s young age. Repeating the experiment using adult-derived tissue might yield different results.
Wider implications of the findings
A better understanding of both the timeline and underlying mechanisms that contribute to chemotherapy-related gonadotoxicity could diminish the damage and depletion of the ovarian reserve (PrF). These results provide evidence that direct damage to PrFs, and not increased activation, contributes to gonadotoxicity in the acute phase following administration of Cp.
Trial registration number
NA
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Affiliation(s)
- L Man
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | | | - E Kallinos
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | - R Bodine
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | - N Zaninovic
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | - G Schattman
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | - Z Rosenwaks
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
| | - D James
- Weill Cornell medicine, Center for Reproductive Medicine , New York City, U.S.A
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Zhai PF, Guan JX, He P, Liu HY, Man L, Jiang Y, Ma CC. [Changes of non-structural carbohydrates and nitrogen contents of needles and twigs in Pinus sylvestris var. mongolica plantations along an aridity gradient]. Ying Yong Sheng Tai Xue Bao 2022; 33:1518-1524. [PMID: 35729128 DOI: 10.13287/j.1001-9332.202206.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
With six Pinus sylvestris var. mongolica plantations (Huinan, Xifeng, Fujia, Zhanggutai, Naiman and Wulanaodu) along an aridity gradient in the Horqin sandy land, we examined the changes in non-structural carbohydrates (NSCs) and nitrogen (N) contents of current and one-year-old needles and twigs, to explore the carbon supply and demand status as well as the nutrient accumulation strategies of P. sylvestris var. mongolica under drought. The results showed that the contents of NSCs and soluble sugars in needles and twigs of P. sylvestris var. mongolica plantations significantly decreased with increasing aridity. From the most humid site (Huinan) to the most aridity site (Wulanaodu), the soluble sugar contents in current and one-year old needles of P. sylvestris var. mongolica decreased from 12.8% and 12.5% to 9.0% and 9.5%, respectively. The soluble sugar contents in current-year old twigs decreased from 15.6% to 9.2%. With increasing aridity, the starch contents in needles and twigs remained relatively stable, soluble sugars/starch ratio in current and one-year old needles decreased, the N contents in current and one-year old twigs significantly increased. The P. sylvestris var. mongolica plantations in the Horqin sandy land consumed soluble sugar storage under drought, resulting in a risk of mortality from 'carbon starvation'. P. sylvestris var. mongolica tended to maintain stable starch storage and accumulate N in twigs to cope with long-term drought stress.
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Affiliation(s)
- Pei-Feng Zhai
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Jia-Xin Guan
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Peng He
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - He-Yong Liu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Liang Man
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Yong Jiang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Cheng-Cang Ma
- College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
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Jiang Z, Diao P, Liang Y, Dai K, Li H, Wang H, Chen Y, Man L, Kuang Y. A Light Gradient Boosting Machine-Enabled Early Prediction of Cardiotoxicity for Breast Cancer Patients. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.771] [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: 10/20/2022]
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Qu X, Liu Y, Teng Z, Zhang Y, Zheng D, Man L, Wang Z, Wang Y, Zhang J, Zhang H, Liu J, Chen H, Xiao W, Jiang Y, Zhang J, Liu S, Wang C. 422P The efficacy and safety of irinotecan plus raltitrexed as second-line treatment in advanced colorectal cancer (ACC) patients: A summary analysis of a multicenter, phase II trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.943] [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: 11/17/2022] Open
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Li M, Yang Y, Yao Y, Xiang W, Han J, Wang Y, Bai P, Wang J, Zhu G, Man L, Zhang F, Pan L. Isolation and identification of attractants from the pupae of three lepidopteran species for the parasitoid Chouioia cunea Yang. Pest Manag Sci 2020; 76:1920-1928. [PMID: 31854075 DOI: 10.1002/ps.5724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/15/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Chouioia cunea Yang (Hymenoptera: Eulophidae) is a parasitic wasp and natural enemy of several lepidopteran pests during their pupal stage. The volatiles from pupae of three hosts, Hyphantria cunea (Arctiidae), Antheraea pernyi (Saturniidae) and Lymantria dispar (Erebidae), were analyzed and compared to elucidate the chemical cues used by C. cunea to locate its hosts. RESULTS The attraction of C. cunea to H. cunea pupae has no obvious association with the types of plant leaves consumed by H. cunea before pupation. C. cunea exhibited the strongest attraction to the pupae of H. cunea, followed by those of A. pernyi and L. dispar based on behavioral experiments. Gas chromatography-mass spectrometry and GC-electroantennography (GC-EAD) analyses showed that these three host pupae consisted of essentially the same active volatile components but at different relative amounts. Active components derived from these pupae by GC-EAD were alkanes from C12 to C27, and C. cunea showed different levels of attraction to different single compounds. CONCLUSION Host location by C. cunea primarily depends on common compounds emanating from the pupae of several host species. The relative amount of each component varies across host species, guiding host preferences by C. cunea. Optimal blends of several components were identified. Understanding the chemical cues used by C. cunea to locate its host could increase the possibility of developing attractants for parasitic wasps and subsequently increasing the parasitism rate of C. cunea on various hosts. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Min Li
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Yixin Yang
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Yonghong Yao
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Weifang Xiang
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Jiayi Han
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Yonghui Wang
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Penghua Bai
- Institute of Plant Protection, Tianjin Academy of Agricultural Sciences, Tianjin, China
| | - Jing Wang
- Natural Enemy Breeding Center, Luohe Central South Forestry Administration, Henan, China
| | - Gengping Zhu
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Liang Man
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
| | - Fan Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Lina Pan
- Tianjin Key Laboratory of Animal and Plant Resistance, Tianjin Normal University, Tianjin, China
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Song M, Peng H, Guo W, Man L, Wang D, Chen P, Zhou Y. CIGARETTE SMOKE EXTRACT PROMOTES HUMAN LUNG MYOFIBROBLAST DIFFERENTIATION BY THE INDUCTION OF ENDOPLASMIC RETICULUM STRESS. Chest 2019. [DOI: 10.1016/j.chest.2019.02.310] [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: 10/27/2022] Open
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9
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Man L, Park L, Rosenwaks Z, James D. Molecular stimulation for promoting growth of early stage follicles by IGF-1. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.305] [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: 11/25/2022]
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10
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Lekovich J, Man L, Xu K, Lilienthal D, Pereira N, Rosenwaks Z, Gerhardt J. Fragile X premutation carriers with mid-range CGG repeat size and reduction in AGG interruptions demonstrate more profoundly diminished ovarian reserve. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.172] [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: 10/18/2022]
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Lekovich J, Man L, Canon C, Pereira N, James D. Cycle day 2 IGF-1 levels are predictive of negative pregnancy outcome in poor responders. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.644] [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: 10/18/2022]
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Lekovich J, Man L, Pereira N, Rosenwaks Z, James D. Co-transplantation of human ovarian tissue with IGF-1 producing endothelial cells improves survival of early stage follicles and is associated with accelerated follicular growth in vivo. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.266] [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: 11/16/2022]
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Street N, Mandel L, Bermudez L, Man L. Strengthening Human Resources for Nursing in Haiti– A Qualitative Study
of a Cross-Cultural Nursing Faculty Project. Ann Glob Health 2017. [DOI: 10.1016/j.aogh.2017.03.316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Man L, Bodine R, Park L, Zaninovic N, Rosenwaks Z, Schattman G, James D. Co-transplantation of human ovarian tissue with AMH-producing endothelial cells inhibits recruitment of primordial follicles. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.015] [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: 11/24/2022]
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Zhu GP, Li HQ, Zhao L, Man L, Liu Q. Mapping the ecological dimensions and potential distributions of endangered relic shrubs in western Ordos biodiversity center. Sci Rep 2016; 6:26268. [PMID: 27199260 PMCID: PMC4873805 DOI: 10.1038/srep26268] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 04/28/2016] [Indexed: 12/03/2022] Open
Abstract
Potential distributions of endemic relic shrubs in western Ordos were poorly mapped, which hindered our implementation of proper conservation. Here we investigated the applicability of ecological niche modeling for endangered relic shrubs to detect areas of priority for biodiversity conservation and analyze differences in ecological niche spaces used by relic shrubs. We applied ordination and niche modeling techniques to assess main environmental drivers of five endemic relic shrubs in western Ordos, namely, Ammopiptanthus mongolicus, Amygdalus mongolica, Helianthemum songaricum, Potaninia mongolica, and Tetraena mongolica. We calculated niche overlap metrics in gridded environmental spaces and compared geographical projections of ecological niches to determine similarities and differences of niches occupied by relic shrubs. All studied taxa presented different responses to environmental factors, which resulted in a unique combination of niche conditions. Precipitation availability and soil quality characteristics play important roles in the distributions of most shrubs. Each relic shrub is constrained by a unique set of environmental conditions, the distribution of one species cannot be implied by the distribution of another, highlighting the inadequacy of one-fits-all type of conservation measure. Our stacked habitat suitability maps revealed regions around Yellow River, which are highly suitable for most species, thereby providing high conservation value.
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Affiliation(s)
- Geng-Ping Zhu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 Binshui Road, Tianjin 300387, China
| | - Hui-Qi Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 Binshui Road, Tianjin 300387, China
| | - Li Zhao
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 Binshui Road, Tianjin 300387, China
| | - Liang Man
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 Binshui Road, Tianjin 300387, China
| | - Qiang Liu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 393 Binshui Road, Tianjin 300387, China
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Man L, Rosenwaks Z, Schattman G, James D. Co-transplantation of endothelial cells with xenotransplanted human ovarian tissue improves primirdial follicles survival. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.271] [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: 11/17/2022]
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17
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Reichman D, Chao K, Man L, Rosenwaks Z, James D. Special research presentation: isolation and characterization of cardiac specific endothelium in murine development and human embryonic stem cell differentiation. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.363] [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: 10/24/2022]
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Man L, Aricha-Tamir B, Har Vardi I, Levitas E, Lunenfeld E. Prognosis of a live birth for women that had previously achieved a chemical pregnancy using IVF. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.226] [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: 11/16/2022]
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Man L, Hasi E, Zhang P, Yan X, Xia XD. [Micro-community characteristics of vegetations in blowouts and depositional areas of Hulunbuir grassland, Inner Mongolia]. Ying Yong Sheng Tai Xue Bao 2008; 19:2177-2181. [PMID: 19123352] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
By using traditional sampling methods, the micro-communities of vegetations in fixed, semi-bare, and bare blowouts of Hulunbuir grassland were investigated, and the investigation data were statistical analyzed. The results showed that the vegetation coverage decreased in the order of fixed blowout, semi-bare blowout, and bare blowout, and was lower than that of the primary vegetation Form. Stipa grandis. Potentilla acaulis and Kengia squarrosa were the dominant species in fixed blowout, with the coverage being 5%; while P. acaulis and Carex sp. were the dominant species in semi-bare blowout, with the coverage being 2%. The dominant species in depositional areas of semi-bare blowout were P. acaulis, K. squarrosa, Agropyron cristatum, and Thymus mongolicus, and the coverage was 4%. The dominant species on the southwest slope of bare blowout was Agriophyllum pungens. The middle depositional area of bare blowout was also occupied by A. pungens (coverage 4.7%), and the edge of it was dominated by A. cristatum (coverage 2.7%), Carex sp. (coverage 2.6%), and T. mongolicus (coverage 1.7%) from the edge of the depositional area to primary grassland. The mean species importance value in fixed, semi-bare, and bare blowouts was 12.64%, 13.38%, and 20.08%, while that in the depositional area of semi-bare blowout and in the middle and edge of bare blowout was 12.55%, 40.18%, and 11.15%, respectively.
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Affiliation(s)
- Liang Man
- College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China.
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20
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Abstract
The study aim was to assess the effect of corticosteroid (CS) therapy on the clinical and biological features of dermatomyositis (DM) or polymyositis (PM).
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Affiliation(s)
- H D Bolosiu
- Department of Rheumatology, I. Hateiganu Medical University, Cluj-Napoca, Romania
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