keyword
https://read.qxmd.com/read/38518717/development-and-validation-of-a-versatile-non-invasive-urinary-steroidomics-method-for-wildlife-biomonitoring
#1
JOURNAL ARTICLE
Tom Cools, Kirsten S Wilson, Desheng Li, Catherine Vancsok, Baptiste Mulot, Antoine Leclerc, José Kok, Marko Haapakoski, Mads F Bertelsen, Andreas Ochs, Simon J Girling, Yingmin Zhou, Rengui Li, Lynn Vanhaecke, Jella Wauters
Wildlife conservation is often challenged by a lack of knowledge about the reproduction biology and adaptability of endangered species. Although monitoring steroids and related molecules can increase this knowledge, the applicability of current techniques (e.g. immunoassays) is hampered by species-specific steroid metabolism and the requisite to avoid invasive sampling. This study presents a validated steroidomics method for the (un)targeted screening of a wide range of sex and stress steroids and related molecules in urine using ultra-high performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS)...
March 19, 2024: Talanta
https://read.qxmd.com/read/38437540/taking-a-color-photo-a-homozygous-25-bp-deletion-in-bace2-may-cause-brown-and-white-coat-color-in-giant-pandas
#2
JOURNAL ARTICLE
Dengfeng Guan, Shuyan Sun, Lingyun Song, Pengpeng Zhao, Yonggang Nie, Xin Huang, Wenliang Zhou, Li Yan, Yinghu Lei, Yibo Hu, Fuwen Wei
Brown-and-white giant pandas (hereafter brown pandas) are distinct coat color mutants found exclusively in the Qinling Mountains, Shaanxi, China. However, its genetic mechanism has remained unclear since their discovery in 1985. Here, we identified the genetic basis for this coat color variation using a combination of field ecological data, population genomic data, and a CRISPR-Cas9 knockout mouse model. We de novo assembled a long-read-based giant panda genome and resequenced the genomes of 35 giant pandas, including two brown pandas and two family trios associated with a brown panda...
March 12, 2024: Proceedings of the National Academy of Sciences of the United States of America
https://read.qxmd.com/read/38413768/ursids-evolved-dietary-diversity-without-major-alterations-in-metabolic-rates
#3
JOURNAL ARTICLE
A M Carnahan, A M Pagano, A L Christian, K D Rode, Charles T Robbins
The diets of the eight species of ursids range from carnivory (e.g., polar bears, Ursus maritimus) to insectivory (e.g., sloth bears, Melursus ursinus), omnivory (e.g., brown bears, U. arctos), and herbivory (e.g., giant pandas, Ailuropoda melanoleuca). Dietary energy availability ranges from the high-fat, highly digestible, calorically dense diet of polar bears (~ 6.4 kcal digestible energy/g fresh weight) to the high-fiber, poorly digestible, calorically restricted diet (~ 0.7) of giant pandas...
February 27, 2024: Scientific Reports
https://read.qxmd.com/read/38407773/geographical-patterns-and-determinants-of-insect-biodiversity-in-china
#4
JOURNAL ARTICLE
Huizhong Fan, Tongyi Liu, Youhua Chen, Ziyan Liao, Jun Chen, Yibo Hu, Gexia Qiao, Fuwen Wei
Insects play important roles in the maintenance of ecosystem functioning and the provision of livelihoods for millions of people. However, compared with terrestrial vertebrates and angiosperms, such as the giant panda, crested ibis, and the metasequoia, insect conservation has not attracted enough attention, and a basic understanding of the geographical biodiversity patterns for major components of insects in China is lacking. Herein, we investigated the geographical distribution of insect biodiversity across multiple dimensions (taxonomic, genetic, and phylogenetic diversity) based on the spatial distribution and molecular DNA sequencing data of insects...
February 23, 2024: Science China. Life Sciences
https://read.qxmd.com/read/38384834/mapping-multi-seasonal-habitats-of-giant-pandas-to-identify-seasonal-shifts
#5
JOURNAL ARTICLE
Yapeng Chang, Chuanyan Zhao, Xingming Liu, Liwen He
As a flagship species of biodiversity conservation globally, the giant panda has seasonal migration to cope with seasonal changes in available resources. Here, we have mapped the spatial distribution of multi-seasonal habitats of the giant panda across the Baishuijiang reserve in China. Results show that the spatial patterns are different in different seasons, generally, large patches are observed in the western part, while staggered clusters occur in the middle and eastern parts. That is, suitable habitats for giant pandas are mostly distributed in the west part...
March 15, 2024: IScience
https://read.qxmd.com/read/38383502/giant-pandas-in-captivity-undergo-short-term-adaptation-in-nerve-related-pathways
#6
JOURNAL ARTICLE
Yan Li, Wei Xu, Juan Wang, Hong Liu, Jiawen Liu, Liang Zhang, Rong Hou, Fujun Shen, Yuliang Liu, Kailai Cai
BACKGROUND: Behaviors in captive animals, including changes in appetite, activity level, and social interaction, are often seen as adaptive responses. However, these behaviors may become progressively maladaptive, leading to stress, anxiety, depression, and other negative reactions in animals. RESULTS: In this study, we investigated the whole-genome sequencing data of 39 giant panda individuals, including 11 in captivity and 28 in the wild. To eliminate the mountain range effect and focus on the factor of captivity only, we first performed a principal component analysis...
February 21, 2024: BMC Zoology
https://read.qxmd.com/read/38369984/hematological-and-biochemical-parameters-of-giant-pandas-ailuropoda-melanoleuca-in-captive-and-semi-natural-environments
#7
JOURNAL ARTICLE
Wenlei Bi, Songrui Liu, Michael P O'Connor, Jacob R Owens, Marc T Valitutto, Rong Hou, Dunwu Qi, Lee-Ann Collins Hayek, Fanqi Wu, Rui Ma, Jiabin Liu, Yanshan Zhou, Long Zhang, Ramana Callan, Li Luo, Wenjun Huang, Zhihe Zhang, James R Spotila
Physiological indexes like blood parameters have been widely used to monitor the health of free-roaming animals. Attempts to reintroduce one of China's most endangered species, the giant panda ( Ailuropoda melanoleuca ), have been hampered by a lack of data on its ecology and physiology. We examined three giant pandas' hematological and blood chemistry parameters in a soft release program and 30 captive giant pandas as controls and determined the reference intervals (RIs) for those blood parameters in the captive animals...
2024: Conservation Physiology
https://read.qxmd.com/read/38354805/examining-the-rationality-of-giant-panda-national-park-s-zoning-designations-and-management-measures-for-habitat-conservation-insights-from-interpretable-machine-learning-methods
#8
JOURNAL ARTICLE
Yuhan Xu, Jun Tang
The examination of the rationality of zoning and management measures in the initial establishment of national parks in China is of great significance for supporting decision-making regarding habitat conservation. There exists a research gap in exploring the threshold effects of both environmental and human-related factors on habitats in the context of national parks. However, it may be a challenge because of the limited species distribution data. Using the Sichuan region of the Giant Panda National Park (GPNP) as an example, this study made use of accessible remote sensing and big data to predict the distribution of giant panda habitat (GPH) in 2020 by constructing a species distribution model based on the random forest algorithm...
February 12, 2024: Science of the Total Environment
https://read.qxmd.com/read/38333585/high-throughput-sequencing-and-characterization-of-potentially-pathogenic-fungi-from-the-vaginal-mycobiome-of-giant-panda-ailuropoda-melanoleuca-in-estrus-and-non-estrus
#9
JOURNAL ARTICLE
Xiaoping Ma, Zhen Liu, Chanjuan Yue, Siwen Wang, Xinni Li, Chengdong Wang, Shanshan Ling, Ya Wang, Songrui Liu, Yu Gu
INTRODUCTION: The giant panda ( Ailuropoda melanoleuca ) reproduction is of worldwide attention, and the vaginal microbiome is one of the most important factors affecting the reproductive rate of giant pandas. The aim of this study is to investigate the diversity of vaginal mycobiota structure, and potential pathogenic fungi in female giant pandas during estrus and non-estrus. METHODS: This study combined with high-throughput sequencing and laboratory testing to compare the diversity of the vaginal mycobiota in giant pandas during estrus and non-estrus, and to investigate the presence of potentially pathogenic fungi...
2024: Frontiers in Microbiology
https://read.qxmd.com/read/38305171/-pseudomonas-associated-bacteria-play-a-key-role-in-obtaining-nutrition-from-bamboo-for-the-giant-panda-ailuropoda-melanoleuca
#10
JOURNAL ARTICLE
Ruihong Ning, Caiwu Li, Maohua Xia, Yu Zhang, Yunong Gan, Yan Huang, Tianyou Zhang, Haitao Song, Siyuan Zhang, Wei Guo
Gut microbiota plays a vital role in obtaining nutrition from bamboo for giant pandas. However, low cellulase activity has been observed in the panda's gut. Besides, no specific pathway has been implicated in lignin digestion by gut microbiota of pandas. Therefore, the mechanism by which they obtain nutrients is still controversial. It is necessary to elucidate the precise pathways employed by gut microbiota of pandas to degrade lignin. Here, the metabolic pathways for lignin degradation in pandas were explored by comparing 209 metagenomic sequencing data from wild species with different feeding habits...
February 2, 2024: Microbiology Spectrum
https://read.qxmd.com/read/38252003/anesthesia-in-captive-giant-pandas-ailuropoda-melanoleuca-with-medetomidine-ketamine
#11
JOURNAL ARTICLE
Tim Bouts, Polly Taylor, Desheng Li, Frank Gasthuys, Alicia Quiévy, Stijn Schauvliege
One male and one female giant panda ( Ailuropoda melanoleuca ) from a Belgian zoo were anesthetized on eight different occasions over a course of 4 yr for electro-ejaculation ( n = 3) or artificial insemination ( n = 5). Medetomidine (0.03-0.04 mg/kg) and ketamine (2.5-3 mg/kg) were administered by intramuscular remote injection. Animals gained sternal recumbency with the loss of response to external stimuli after 4.9 ± 1.6 min (mean ± SD). The trachea was intubated with a 14-mm-internal diameter endotracheal tube; anesthesia was maintained with isoflurane in oxygen adjusted according to the required depth of anesthesia with a small-animal circle system...
January 2024: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://read.qxmd.com/read/38227708/single-cell-mrna-sequencing-of-giant-panda-ailuropoda-melanoleuca-seminoma-reveals-the-cellular-and-molecular-characteristics-of-tumour-cells
#12
Chen Yijiao, An Junhui, Hou Rong, Liu Yuliang, Wang Donghui, Liu Songrui, Feng Tongying
Testicular tumours are zoonoses that can occur in not only human, but other animals, include giant pandas. A middle-aged male giant panda named Fufu was diagnosed with a testicular tumour and underwent surgery to remove the entire left testis. The testis was mainly composed of three substantive parts: normal tissue on the outside, tumour tissue in the middle, and necrosis in the centre. HE stains revealed that the tumour was a seminoma. Single-cell mRNA sequence was applied to characterise cellular states and molecular circuitries of giant panda testicular seminoma...
January 2024: Veterinary Medicine and Science
https://read.qxmd.com/read/38175989/teaching-neuroimage-neuroimaging-features-of-wilson-disease
#13
JOURNAL ARTICLE
Pradeep Kumar Gunasekaran, Sarbesh Tiwari, Ashna Kumar, Veena Laxmi, Lokesh Saini
A 13-year-old boy of nonconsanguineous parents presented with abnormal body movements, gait difficulty, and slurring of speech for 2 years. On examination, he had rigidity, dystonia, dysarthria, and drooling. Ophthalmologic examination revealed bilateral Kayser-Fleischer rings. He had elevated serum "free" copper levels (41.2 μg/dL [range:10-15]), 24-hour urine copper levels (895.7 μg/d [range:<60]), and reduced serum ceruloplasmin levels (4.3 mg/dL (range:20-40]). MRI revealed "face of giant panda" appearance (Figure A), T2-fluid attenuated inversion recovery hyperintensities (Figure, B and C), and frontal cystic encephalomalacic changes (Figure D), suggestive of Wilson disease (WD)...
February 13, 2024: Neurology
https://read.qxmd.com/read/38163545/reference-gene-catalog-and-metagenome-assembled-genomes-from-the-gut-microbiome-reveal-the-microbial-composition-antibiotic-resistome-and-adaptability-of-a-lignocellulose-diet-in-the-giant-panda
#14
JOURNAL ARTICLE
Shengzhi Yang, Wenwen Deng, Guo Li, Lei Jin, Yan Huang, Yongguo He, Daifu Wu, Desheng Li, Anyun Zhang, Chengxi Liu, Caiwu Li, Hemin Zhang, Huailiang Xu, Petri Penttinen, Ke Zhao, Likou Zou
The giant panda, a strict herbivore that feeds on bamboo, still retains a typical carnivorous digestive system. Reference catalogs of microbial genes and genomes are lacking, largely limiting the antibiotic resistome and functional exploration of the giant panda gut microbiome. Here, we integrated 177 fecal metagenomes of captive and wild giant pandas to construct a giant panda integrated gene catalog (GPIGC) comprised of approximately 4.5 million non-redundant genes and reconstruct 393 metagenome-assembled genomes (MAGs)...
December 30, 2023: Environmental Research
https://read.qxmd.com/read/38136865/predicting-the-potential-distribution-of-the-szechwan-rat-snake-euprepiophis-perlacea-and-its-response-to-climate-change-in-the-yingjing-area-of-the-giant-panda-national-park
#15
JOURNAL ARTICLE
Xinqiang Song, Ying Jiang, Li Zhao, Long Jin, Chengzhi Yan, Wenbo Liao
Climate change is a significant driver of changes in the distribution patterns of species and poses a threat to biodiversity, potentially resulting in species extinctions. Investigating the potential distribution of rare and endangered species is crucial for understanding their responses to climate change and for the conservation of biodiversity and ecosystem management. The Szechwan rat snake ( Euprepiophis perlacea ) is an endemic and endangered species co-distributed with giant pandas, and studying its potential distribution contributes to a better understanding of the distribution pattern of endangered species...
December 12, 2023: Animals: An Open Access Journal From MDPI
https://read.qxmd.com/read/38134503/the-effectiveness-of-using-giant-panda-as-a-surrogate-for-protecting-sympatric-species
#16
JOURNAL ARTICLE
Ying Yue, Zhisong Yang, Wei Wei, Biao Yang, Dunwu Qi, Xiaodong Gu, Xuyu Yang, Song Lu, Wen Zhang, Qiang Dai, Zejun Zhang
The use of umbrella species to promote biodiversity conservation is practiced worldwide. The giant panda (Ailuropoda melanoleuca) an iconic species for world wildlife conservation, that inhabits regions with significant biodiversity. Given that the functions at wildlife of different trophic levels and in different body size groups are different within the ecosystem, it is unknown whether those groups of wildlife co-occurring with giant pandas are each likewise protected. To examine the umbrella effect of giant pandas on sympatric species, we used an extensive dataset of wildlife from more than 78% of giant panda habitats...
December 21, 2023: Journal of Environmental Management
https://read.qxmd.com/read/38072876/enhanced-protective-immunity-against-baylisascaris-schroederi-infection-in-mice-through-a-multi-antigen-cocktail-vaccine-approach
#17
JOURNAL ARTICLE
Lang Xiong, Yanxin Chen, Ling Chen, Ruiqi Hua, Nengxing Shen, Guangyou Yang
Baylisascaris schroederi is among the most severe intestinal nematodes affecting giant pandas. Developing effective and secure vaccines can be used as a novel strategy for controlling repeated roundworm infection and addressing drug resistance. In our previous study, three recombinant antigens (rBsHP2, rBsGAL, and rBsUP) exhibited promising effects against B. schroederi infection in the mice model. This study extends the findings by formulating four-form cocktail vaccines (GAL+UP, HP2+UP, GAL+HP2, and GAL+HP2+UP) using three B...
December 11, 2023: Parasitology Research
https://read.qxmd.com/read/37999453/the-impact-of-bamboo-consumption-on-the-spread-of-antibiotic-resistance-genes-in-giant-pandas
#18
JOURNAL ARTICLE
Zheng Yan, Xin He, James Ayala, Qin Xu, Xiaoqiang Yu, Rong Hou, Ying Yao, He Huang, Hairui Wang
The spread of antibiotic resistance genes (ARGs) in the environment exacerbates the contamination of these genes; therefore, the role plants play in the transmission of resistance genes in the food chain requires further research. Giant pandas consume different bamboo parts at different times, which provides the possibility of investigating how a single food source can affect the variation in the spread of ARGs. In this study, metagenomic analysis and the Comprehensive Antibiotic Resistance Database (CARD) database were used to annotate ARGs and the differences in gut microbiota ARGs during the consumption of bamboo shoots, leaves, and culms by captive giant pandas...
October 24, 2023: Veterinary Sciences
https://read.qxmd.com/read/37990845/measuring-ecosystem-services-and-ecological-sensitivity-for-comprehensive-conservation-in-giant-panda-national-park
#19
JOURNAL ARTICLE
Cheng Li, Rong Hou, Ziqiang Bao, Wei Wu, Jacob R Owens, Wenlei Bi, Qiang Xu, XiaoDong Gu, Zuofu Xiang, Dunwu Qi
China announced the development of its first 5 national parks in 2021, the primary objective of which is to conserve the natural state and integrity of natural ecosystems. As such, ecosystem services and biodiversity levels are crucial assessment factors for the parks. For Giant Panda National Park (GPNP), we evaluated ecological sensitivity based on water and soil erosion and rocky desertification; ecosystem services based on headwater conservation, soil and water conservation, and biodiversity conservation; and presence of giant panda (Ailuropoda melanoleuca) and sympatric species (e...
November 22, 2023: Conservation Biology
https://read.qxmd.com/read/37987531/correction-to-giant-pandas-are-losing-their-edge-population-trend-and-distribution-dynamic-drivers-of-the-giant-panda
#20
(no author information available yet)
No abstract text is available yet for this article.
November 21, 2023: Global Change Biology
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