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Use of infrared thermography to detect reactions to stressful events:does animal personality matter?

Integrative Zoology 2024年第2期19卷 224-239页

作者： Maria Vittoria MAZZAMUTO Marina MORANDINI William LAMPMAN Lucas Armand WAUTERS Damiano PREATONI john lad koprowski Adriano MARTINOLI School of Natural Resources and Environment College of Agriculture and Life ScienceUniversity of ArizonaArizonaUSA Unitàdi Analisi e Gestione delle Risorse Ambientali Dipartimento di Scienze Teoriche e ApplicateGuido Tosi Research GroupUniversitàdegli Studi dell’InsubriaVareseItaly Haub School of Environment and Natural Resources University of WyomingWyomingUSA

The study of the relationship between animal stress and personality for free-ranging animals is limited and provides contrasting *** perception of stressors by an individual may vary due to its personality,and certain personality traits may help individuals to better cope with *** non-invasive infrared thermography(IRT),we investigated the link between physiological and behavioral components expressed during an acute stress event by free-ranging Fremont’s squirrels(Tamiasciurus fremonti).We expected that,during the acute stress event of being approached by the researcher,individuals that showed a fast pace-of-life syndrome(bolder,more active,and less social/more aggressive)based on an arena test would exhibit stronger sympathetic-adrenal-medullary system reactivity showing a more intense stress-induced hyperthermia(high core body temperature and low peripheral temperature)than individuals with a slow pace of life(shy,less active,and more social).We successfully employed IRT technology to images of Fremont’s squirrels with identification of the individuals’body parts(eye,nose,ear,hind foot).However,we found no support for our ***’body surface temperatures told us more about a squirrel’s external environment and less about the thermal state of the body in that environment following a stressful *** studies need to assess how to make IRT effective and efficient in the field and improve its performance in studying the relationships between physiology and personality in wildlife.

关键词： non-invasive method open field test physiology stress-induced hyperthermia Tamiasciurus fremonti

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Behavioral responses to spatial heterogeneity in endangered Ganges River dolphins(Platanista gangetica gangetica)

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Water Biology and Security 2022年第3期1卷 67-76页

作者： Shambhu Paudel john L.koprowski Usha Thakuri Yukiko Sasaki-Yamamoto Shiro Kohshima School of Natural Resources and the Environment University of Arizona1064 East Lowell StreetTucsonAZ85721USA Tribhuvan University Institute of ForestryPost Box:43PokharaNepal Haub School of Environment and Natural Resources University of WyomingBim Kendall House804 E Fremont StLaramieWY82072USA Wildlife Research Center of Kyoto University 2-24 Tanaka-Sekiden-choSakyo-kuKyoto606-8203Japan

Globally,the threat of endangerment and extinction of small cetaceans was highlighted after the recent extinction of the Chinese River dolphin or Baiji(Lipotes vexillifer).Species with a small population size and a limited geographic range,such as Ganges River dolphins(GRD),are more vulnerable to *** social and behavioral needs of cetaceans have been identified as potential factors increasing their vulnerability to human ***,little is known about how GRD adapt their behaviors and diel activity patterns to spatiotemporal *** this paper,we examined the underwater behavior of GRDs in Nepal by collecting echolocation clicks from three spatially stratified habitats in the Sapta Koshi River system over a six-month *** research found that GRDs behave differently in response to spatial heterogeneity,indicating diverse environmental requirements for GRD *** activity and duration varied across habitats but not across time of day,suggesting that GRD behaviors are likely to be regulated by habitat structure regardless of the time of ***,GRD consistently exhibited nocturnal activity peaks even when diurnal activity varied *** indicates that river dolphins may favor nocturnal refuges as a reaction to human disturbance in highly regulated *** human disturbances in conjunction with habitat heterogeneity can improve the persistence of riverine ***,we document behavioral and ecological information pertaining to GRD,which is essential to the formation of river dolphin recovery plans that link ecological perspectives to planning and management.

关键词： Ganges river dolphin Behavior Acoustic Ecology Nepal

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Cellular Response of Murine Osteoblasts to Cryopreservation:The Influence of Attachment to Hydroxyapatite(HA) Scaffolds

Cellular Response of Murine Osteoblasts to Cryopreservation:...

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第六届全国低温生物医学及器械学术大会

作者： john McGRATH Labrotary of Cryobiology Aerospace and Mechanical Engineering DepartmentUniversity of Arizona

This paper presents data relevant to the rational design of cryopreservation processes for tissue-engineered *** effects of cell-scaffold interactions and cell-cell interactions on osteoblast viability and attachment to hydroxyapatite(HA) scaffolds following cryopreservation processing are defined experi *** is found that cryopreservation processing detaches osteoblasts from the HA scaffold and that cells suffer significantly more damage than when they are cryopreserved in liquid ***,some aspect of cell-surface interaction is *** detrimental influence involves thermal modulations because when osteoblasts attached to HA are exposed to cryoprotective agents for two-step freezing without temperature change, morphological changes occur but little detachment or damage is *** post-thaw attachment and viability are realized for higher number densities of osteoblasts on the HA scaffold surface,indicating that some aspect of cell-cell interaction is *** porosity HA scaffolds are better for cell attachment but porosity is not a statistically significant factor for post thaw viability.

关键词： osteoblast cryopreservation attachment hydroxyapatite

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彩色组织多普勒速度阶差评价心内膜下心肌缺血

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中国超声医学杂志 2002年第6期18卷 4-7页

作者：王浩,john Gorcsan Ⅲ,Michael Dishart,Michael R.Pinsky 中国医学科学院协和医科大学阜外心血管病医院心血管病研究所美国匹兹堡大学医学中心美国匹兹堡大学医学中心美国匹兹堡大学医学中心 100037北京市

目的 :应用彩色组织多普勒 (CTD)技术评价左室前壁心内膜下心肌缺血时的速度阶差 (VG)变化及对小剂量多巴酚丁胺 (DOB)的反应。方法 :7只开胸犬 (2 0± 3) kg将左前降支 (L AD)血流减半造成心内膜下心肌缺血模型 ,并予小剂量 DOB (5μg/... 详细信息

目的 :应用彩色组织多普勒 (CTD)技术评价左室前壁心内膜下心肌缺血时的速度阶差 (VG)变化及对小剂量多巴酚丁胺 (DOB)的反应。方法 :7只开胸犬 (2 0± 3) kg将左前降支 (L AD)血流减半造成心内膜下心肌缺血模型 ,并予小剂量 DOB (5μg/kg/min)静脉输注。以 CTD观察心内膜下心肌缺血及应用 DOB后心内膜下心肌的 VG变化。结果 :L AD血流减半后 CTD显示前壁心内膜下心肌 VG显著降低 ,由收缩期 (S期 )的 (2 .9±1.1) /sec降至 (1.8± 0 .7) /sec,舒张期 (D期 )的 (4.9± 1.7) /sec降至 (2 .8± 0 .6 ) /sec (P<0 .0 1) ,射血时间(ET)由 (174 .7± 36 .6 ) ms延长至 (180 .1± 4 7.8) ms (P<0 .0 5 )。应用小剂量 DOB后 VG恢复至 S期 (3.0±0 .5 ) /sec和 D期的 (4.9± 1.3) /sec(与缺血时比 P<0 .0 1) ,ET延长至 (2 2 0 .1± 5 9.3) ms(与缺血时比 P<0 .0 5 )。结论 :CTD为评价心内膜下心肌缺血的敏感指标。心内膜下心肌缺血时应用小剂量 DOB可改善心内膜下心肌 VG,但 ET延长

关键词：超声心动图多普勒心肌缺血多巴酚丁胺

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糖尿病对心肌冠状动脉侧支循环形成的影响

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国际麻醉学与复苏杂志 2006年第1期27卷 13-15,36页

作者：顾卫东张玉美沈莉娜曾因明 Judy Kersten john Tessmer David Warltier 上海瑞金医院集团闵行医院麻醉科上海201100 江苏省麻醉医学研究所徐州221002 美国威斯康星医学院麻醉科

Objective To investigate the effect of diabetes on coronary collateral development. Methods A dog model of diabetes was induced by intravenous injecting alloxan and streptozotocin. Dogs were subjected to brief (2 min), repetitive coronary artery occlusions (8 times per day for 21days) in the absence (ischemia n=8) or presence of diabetes (diabetes+ischemia n=6). A sham group (n=8) was instrumented identically but received no occlusion. Myocardial blood flow was determined in the myocardium perfused by the left anterior descending coronary artery (lad) and the left circumflex coronary artery (LCCA). Peak reactive hyperemia response (PRH) was recorded on experimental days 1, 7, 14 and 21. Colla teral blood flow was expressed as the percentage of normal zone blood flow. Results Fasting blood glucose in the diabetes+ischemia group (17.5 mmol·L -1±1.1 mmol·L -1, 18.6 mmol·L -1±1.1 mmol·L -1, 21.6 mmol·L -1±1.5 mmol·L -1 and 21.9 mmol·L -1±1.5 mmol·L -1 on days 1, 7, 14 and 21, respectively) were significantly higher than those in the ischemia group (3.9 mmol·L -1±1.0 mmol·L -1, P<0.01). Coronary collateral blood flow was significantly increased in ischemia dogs (71%±7%) after 21 days but remained unchanged in sham dogs. The collateral blood flow in the diabetes+ischemia group after 21 days was only 17%±6%, which was significantly lower than that in the ischemia group (P<0.01). PRH in the ischemia group was 7.6 Hz·102±2.9 Hz·102 on days 21, which was significantly lower than that on day 1 (16.4 Hz·102±2.9 Hz·102, P<0.05). PRH remained unchanged in the diabetes+ischemia and sham group. PRH in diabetes+ischemia dogs (15.6 Hz·102±2.5 Hz·102) on days 21 was significantly higher than that in ischemia dogs (P<0.05). Conclusions Diatetes inhibits the development of coronary collateral blood flow.

关键词：冠状动脉侧支循环形成糖尿病患者心肌梗死心力衰竭侧支血流缺血心肌合并症病死率 MI 发生率

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