keyword
https://read.qxmd.com/read/38646747/responses-of-leaf-traits-to-altitude-in-quercus-aquifolioides-and-sorbus-rehderiana-on-the-eastern-edge-of-the-qinghai-tibet-plateau-china
#1
JOURNAL ARTICLE
Hong-Shuang Xing, Qiu-Hong Feng, Zuo-Min Shi, Shun Liu, Ge-Xi Xu, Jian Chen, Shan-Shan Gong
As the most senstitive plant organs to environmental changes, leaves serve as crucial indicators of plant survival strategies. We measured the morphology, anatomical traits, gas exchange parameters, and chlorophyll fluorescence parameters of Quercus aquifolioides (evergreen broad-leaved) and Sorbus rehderiana (deciduous broad-leaved) at altitudes of 2600, 2800, 3000, 3200 and 3400 m on the eastern edge of the Qinghai-Tibet Plateau, China. We explored the similarity and difference in their responses to altitude change and the ecological adaptation strategy...
March 18, 2024: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://read.qxmd.com/read/38644207/yishen-huatan-huoxue-decoction-and-quercetin-ameliorate-decidualization-dysfunction-in-polycystic-ovary-syndrome-a-comprehensive-investigation-combining-clinical-trial-and-experimental-studies
#2
JOURNAL ARTICLE
Jing Wang, Lisha Li, Jing Zhou, Xinyao Pan, Qing Qi, Hongmei Sun, Ling Wang
Polycystic ovary syndrome (PCOS) is a common gynecological endocrine disorder characterized by a complex pathogenesis and limited treatment options. Yishen Huatan and Huoxue decoction (YHHD), as a traditional Chinese Medicine formula, has shown effectiveness in treating PCOS. However, the specific mechanisms by which YHHD exerts its therapeutic effects remain unclear. In this study, we performed to investigate the therapeutic effects of YHHD and quercetin on dehydroepiandrosterone-induced PCOS mice, and examine the effect of quercetin on the decidualization of T-HESCs under hyperinsulinemic conditions...
April 19, 2024: Drug Discoveries & Therapeutics
https://read.qxmd.com/read/38643920/structure-function-relationship-and-biological-activity-of-polysaccharides-from-mulberry-leaves-a-review
#3
REVIEW
Yexian Hu, Yan Zhang, Xiaoao Cui, Dongsheng Wang, Yong Hu, Chuyan Wang
Mulberry (Latin name "Morus alba L.") is a perennial deciduous tree in the family of Moraceae, widely distributed around the world. In China, mulberry is mainly distributed in the south and the Yangtze River basin. Its leaves can be harvested 3-6 times a year, which has a great resource advantage. Mulberry leaves are regarded as the homology of medicine and food traditional Chinese medicine (TCM). Polysaccharides, as its main active ingredients, have various effects, such as antioxidant, hypoglycemic, hepatoprotective, and immunomodulatory...
April 19, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38642168/study-on-endolichenic-fungal-assemblage-in-parmotrema-and-heterodermia-lichens-of-shivamoga-karnataka
#4
JOURNAL ARTICLE
D Pushpavathi, Y L Krishnamurthy
BACKGROUND: Lichen is a symbiotic association of algae and fungi, recognized as a self-sustaining ecosystem that constitutes an indeterminant number of bacteria, actinomycetes, fungi, and protozoa. We evaluated the endolichenic fungal assemblage given the dearth of knowledge on endolichenic fungi (ELFs), particularly from part of the Central Western Ghats, Karnataka, and conducted a phylogenetic analysis of xylariaceous fungi, the most diversified group of fungi using ITS and ITS+Tub2 gene set...
April 20, 2024: Molecular Biology Reports
https://read.qxmd.com/read/38640430/first-report-of-a-rust-disease-of-lycium-chinense-caused-by-puccinia-tumidipes-in-korea
#5
JOURNAL ARTICLE
Hyeyoun Ryu, Minji Ryu, Eun Jin Jeon, Young Ju Park, Byeongsam Kang, Yoshitaka Ono, Ok-Kyung Kim, Seong-Jin Lee
Lycium chinense Mill is a deciduous broad-leaved shrub belonging to the Solanaceae family and, is widely distributed throughout Korea. This plant is native to, or cultivated for various oriental medicinal purposes in, multiple regions of Asia, including Korea, China, and Japan (Lee 1982; Kim et al. 1994). Eleven Puccinia species have been reported to infect Lycium species (Otálora et al. 2018). In May and October 2022, symptoms of rust disease caused by Puccinia sp. were observed on almost all the leaves of about 60 sprawling stems of L...
April 19, 2024: Plant Disease
https://read.qxmd.com/read/38638834/thermal-water-and-land-cover-factors-led-to-contrasting-urban-and-rural-vegetation-resilience-to-extreme-hot-months
#6
JOURNAL ARTICLE
Yaoping Wang, Jiafu Mao, Christa M Brelsford, Daniel M Ricciuto, Fengming Yuan, Xiaoying Shi, Deeksha Rastogi, Melanie M Mayes, Shih-Chieh Kao, Jeffrey M Warren, Natalie A Griffiths, Xinghua Cheng, David J Weston, Yuyu Zhou, Lianhong Gu, Peter E Thornton
With continuing global warming and urbanization, it is increasingly important to understand the resilience of urban vegetation to extreme high temperatures, but few studies have examined urban vegetation at large scale or both concurrent and delayed responses. In this study, we performed an urban-rural comparison using the Enhanced Vegetation Index and months that exceed the historical 90th percentile in mean temperature (referred to as "hot months") across 85 major cities in the contiguous United States. We found that hot months initially enhanced vegetation greenness but could cause a decline afterwards, especially for persistent (≥4 months) and intense (≥+2 °C) episodes in summer...
April 2024: PNAS Nexus
https://read.qxmd.com/read/38637474/the-essential-role-of-pgf2%C3%AE-ptgfr-in-molding-endometrial-breakdown-and-vascular-dynamics-regulated-by-hif-1%C3%AE-in-a-mouse-menstrual-like-model
#7
JOURNAL ARTICLE
Fang Zhou, Shufang Wang, Wenhong Lu, Xihua Chen, Shige Guo, Cong Lu, Xin Zhang, Jiangxu Wu, Siyu Wang, Zeyi Long, Bin He, Taifeng Zhuang, Xiangbo Xu
In women of childbearing age, extensive decidualization, shedding and remodeling of the endometrium during the menstrual cycle are fundamental for successful pregnancy. The role of prostaglandins (PGs) in menstruation has long been proposed in humans, and the rate-limiting enzyme cyclooxygenase was shown to play a key role in endometrial breakdown and shedding in a mouse menstrual-like model in our previous study. However, the specific types of PGs involved and their respective roles remain unclear. Therefore, our objective was to investigate the mechanism through which PGs regulate endometrial disintegration...
April 18, 2024: Reproductive Sciences
https://read.qxmd.com/read/38637004/-dental-pulp-stem-cells-in-tooth-regeneration-advancement-and-emerging-directions
#8
JOURNAL ARTICLE
L Ma, A Q Liu, H Guo, K Xuan
Regenerating tissues similar to dental structure with normal function are putatively to be the aim in tooth regeneration filed. Currently, researchers preliminarily achieved tooth regeneration by applying dental pulp stem cell (DPSC) and stem cell from human exfoliated deciduous teeth (SHED). However, the regeneration efficiency remains unstable and needs further investigation. The development of single-cell RNA sequencing and organoid culture system provide potential of precise, targeted and controllable functional regeneration...
April 18, 2024: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://read.qxmd.com/read/38636417/simultaneous-removal-of-ammonia-nitrogen-calcium-and-cadmium-in-a-biofilm-reactor-based-on-microbial-induced-calcium-precipitation-optimization-of-conditions-mechanism-and-community-biological-response
#9
JOURNAL ARTICLE
Yu Liu, Jiawei Li, Junfeng Su, Xue Li, Xuan Li
With the enhancement of environmental governance regulations, the discharge requirements for reverse osmosis wastewater have become increasingly stringent. This study proposes an innovative approach utilizing heterotrophic nitrification and aerobic denitrification (HNAD)-based biomineralization technology, combined with coconut palm silk loaded biochar, to offer a novel solution for resource-efficient and eco-friendly treatment of reverse osmosis wastewater. Zobellella denitrificans sp. LX16 were loaded onto modified coir silk and showed removal efficiencies of up to 97...
April 17, 2024: Journal of Environmental Management
https://read.qxmd.com/read/38633273/full-length-transcriptome-profiling-of-acanthopanax-gracilistylus-provides-new-insight-into-the-kaurenoic-acid-biosynthesis-pathway
#10
JOURNAL ARTICLE
Bing He, Tingyu Shan, Jingyao Xu, Xinxin Zhong, Jingjing Zhang, Rongchun Han, Qingshan Yang, Jiawen Wu
UNLABELLED: Acanthopanax gracilistylus is a deciduous plant in the family Araliaceae, which is commonly used in Chinese herbal medicine, as the root bark has functions of nourishing the liver and kidneys, removing dampness and expelling wind, and strengthening the bones and tendons. Kaurenoic acid (KA) is the main effective substance in the root bark of A. gracilistylus with strong anti-inflammatory effects. To elucidate the KA biosynthesis pathway, second-generation (DNA nanoball) and third-generation (Pacific Biosciences) sequencing were performed to analyze the transcriptomes of the A...
March 2024: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://read.qxmd.com/read/38627796/increased-levels-of-villus-derived-exosomal-mir-29a-3p-in-normal-pregnancy-than-urpl-patients-suppresses-decidual-nk-cell-production-of-interferon-%C3%AE-and-exerts-a-therapeutic-effect-in-abortion-prone-mice
#11
JOURNAL ARTICLE
Zheng Fang, Jiaqin Mao, Jialyu Huang, Huijun Sun, Xueyan Lu, Hui Lei, Jie Dong, Shuqiang Chen, Xiaohong Wang
OBJECTIVE: Recurrent pregnancy loss (RPL) patients have higher absolute numbers of decidual natural killer (dNK) cells with elevated intracellular IFN-γ levels leading to a pro-inflammatory cytokine milieu, which contributes to RPL pathogenesis. The main objective of this study was twofold: first to explore the regulatory effects and mechanisms of villus-derived exosomes (vEXOs) from induced abortion patients or RPL patients at the level of intracellular IFN-γ in dNK cells; second to determine the validity of application of vEXOs in the treatment of unexplained RPL (uRPL) through in vitro experiments and mouse models...
April 16, 2024: Cell Communication and Signaling: CCS
https://read.qxmd.com/read/38627562/placental-igfbp1-levels-during-early-pregnancy-and-the-risk-of-insulin-resistance-and-gestational-diabetes
#12
JOURNAL ARTICLE
Marie-France Hivert, Frédérique White, Catherine Allard, Kaitlyn James, Sana Majid, François Aguet, Kristin G Ardlie, Jose C Florez, Andrea G Edlow, Luigi Bouchard, Pierre-Étienne Jacques, S Ananth Karumanchi, Camille E Powe
Reduced insulin sensitivity (insulin resistance) is a hallmark of normal physiology in late pregnancy and also underlies gestational diabetes mellitus (GDM). We conducted transcriptomic profiling of 434 human placentas and identified a positive association between insulin-like growth factor binding protein 1 gene (IGFBP1) expression in the placenta and insulin sensitivity at ~26 weeks gestation. Circulating IGFBP1 protein levels rose over the course of pregnancy and declined postpartum, which, together with high gene expression levels in our placenta samples, suggests a placental or decidual source...
April 16, 2024: Nature Medicine
https://read.qxmd.com/read/38627532/understanding-vegetation-phenology-responses-to-easily-ignored-climate-factors-in-china-s-mid-high-latitudes
#13
JOURNAL ARTICLE
Qianfeng Wang, Huixia Chen, Feng Xu, Virgílio A Bento, Rongrong Zhang, Xiaoping Wu, Pengcheng Guo
Previous studies have primarily focused on the influence of temperature and precipitation on phenology. It is unclear if the easily ignored climate factors with drivers of vegetation growth can effect on vegetation phenology. In this research, we conducted an analysis of the start (SOS) and end (EOS) of the growing seasons in the northern region of China above 30°N from 1982 to 2014, focusing on two-season vegetation phenology. We examined the response of vegetation phenology of different vegetation types to preseason climatic factors, including relative humidity (RH), shortwave radiation (SR), maximum temperature (Tmax), and minimum temperature (Tmin)...
April 16, 2024: Scientific Reports
https://read.qxmd.com/read/38626573/gjb2-c-35del-variant-up-regulates-gja1-gene-expression-and-affects-differentiation-of-human-stem-cells
#14
JOURNAL ARTICLE
Ana Carla Batissoco, Dayane Bernardino Cruz, Thiago Geronimo Pires Alegria, Gerson Kobayashi, Jeanne Oiticica, Luis Eduardo Soares Netto, Maria Rita Passos-Bueno, Luciana Amaral Haddad, Regina Célia Mingroni Netto
Pathogenic DNA alterations in GJB2 are present in nearly half of non-syndromic hearing loss cases with autosomal recessive inheritance. The most frequent variant in GJB2 causing non-syndromic hearing loss is the frameshifting c.35del. GJB2 encodes Cx26, a protein of the connexin family that assembles hemichannels and gap junctions. The expression of paralogous proteins is believed to compensate for the loss of function of specific connexins. As Cx26 has been involved in cell differentiation in distinct tissues, we employed stem cells derived from human exfoliated deciduous teeth (SHEDs), homozygous for the c...
2024: Genetics and Molecular Biology
https://read.qxmd.com/read/38623790/sex-specific-effects-of-environmental-temperature-during-gestation-on-fluctuating-asymmetry-in-deciduous-teeth
#15
JOURNAL ARTICLE
Emily Moes, Christopher W Kuzawa, Heather J H Edgar
OBJECTIVES: External environmental heat exposure during gestation impacts the physiology of human development in utero, but evidence for these impacts has not yet been explored in dentition. We examined deciduous teeth for fluctuating asymmetry (FA), a measure of developmental instability, together with gestational environmental temperature data drawn from historical weather statistics. MATERIALS AND METHODS: We measured dental casts from the longitudinal Burlington Growth Study, representing 172 participants (ages 3-6 years) with health records...
April 16, 2024: American journal of biological anthropology
https://read.qxmd.com/read/38623176/the-complete-chloroplast-genome-sequence-of-zanthoxylum-ailanthoides-sieb-et-zucc-rutaceae-an-important-medicinal-plant
#16
JOURNAL ARTICLE
Yan-Ni Liang, Nan Cui, Xiao-Bin Liang, Xi-Yang Huang, Wei Zhang, Hong Li
Zanthoxylum ailanthoides is a deciduous tree, with important medicinal and economic values. The complete chloroplast genome sequence of Z. ailanthoides was assembled and the phylogenetic relationship to other species was inferred in this study. The chloroplast genome is 157,209 bp in length, including two inverted repeats of 26,408 bp, a large single-copy of 86,099 bp and a small single copy of 18,294 bp. Moreover, the chloroplast genome contains 129 genes, including 84 protein-coding genes, 37 tRNA genes, and 8 rRNA genes...
2024: Mitochondrial DNA. Part B. Resources
https://read.qxmd.com/read/38623062/zeroexpander%C3%A2-effectiveness-assessment-in-peek-or-pa12-in-a-group-of-paediatric-patients-with-transverse-maxillary-deficiency
#17
JOURNAL ARTICLE
M Beretta, M Paglia, E Di Lorenzo, V Conti, G Marzo, R Gatto, A Mattei, S Colombo
AIM: The aim of this article is to compare the performance of ZeroExpander® realised using PEEK or PA12 for the expansion of the maxilla in paediatric patients, exploring a new concept for approaching maxillary expansion with a metal-free fixed automatic appliance, based on pre-programmed set-up and anchored on deciduous teeth. MATERIALS: It is a retrospective comparative study with a sample of 40 children in early or mixed deciduous dentition and transversal maxillary deficit, 20 treated with ZeroExpander® in PEEK and 20 treated with ZeroExpander® in PA12 with a mean age of 7...
April 1, 2024: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://read.qxmd.com/read/38622421/optimization-of-leaf-area-index-measurement-method-and-correction-of-green-plot-ratio-formula-based-on-regional-plant-characteristics-a-study-in-chongqing-china
#18
JOURNAL ARTICLE
Lili Dong, Yawei Jiang, Yu Luo, Xiang Cheng, Lijiao Ai
The quantification of green space green plot ratio (GPR) is mostly based on estimation formulas, and the leaf area index (LAI) estimation values in these estimation formulas have not been well verified by measured LAI values, resulting in errors and uncertainties in GPR quantification results. This study aims to address this gap by measuring the LAI of 113 regional plants in Chongqing, China, following a standardized measurement path for digital hemispherical photography (DHP). The results indicate that the optimal relative exposure value (REV) was - 1 under overcast conditions and - 2 under sunny and cloudy conditions...
April 15, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38621179/subchronic-toxicity-evaluation-of-idesia-polycarpa-fruit-oil-by-90-day-oral-exposure-in-wistar-rats
#19
JOURNAL ARTICLE
Zhi Zeng, Jingzhou Dong, Zhichen Gao, Bolin Fan, Yaobing Chen, Kai Luo, Xiaojiang Zheng
Idesia polycarpa , belonging to the Flacourtiaceae family, is a tall deciduous tree, widely distributed in some Asian countries. It is famous for its high yield of fruit known as oil grape, which is rich of linoleic acid and linolenic acid, and so on. To provide evidences for its safe use as food, subchronic toxicity of I. polycarpa fruit oil and no observed adverse effect level were performed in male and female specific pathogen-free Wistar rats. Based on the Organization for Economic Co-operation and Development guidelines, the oil was orally administered to rats by gavage at 0, 1...
April 15, 2024: Journal of Medicinal Food
https://read.qxmd.com/read/38621018/both-external-and-internal-factors-induce-heterogeneity-in-senescing-leaves-of-deciduous-trees
#20
JOURNAL ARTICLE
Heta Mattila, Sergey Khorobrykh, Esa Tyystjärvi
Autumn senescence is characterised by spatial and temporal heterogeneity. We show that senescing birch (Betula spp.) leaves had lower PSII activity (probed by the F V /F M chlorophyll a fluorescence parameter) in late autumn than in early autumn. We confirmed that PSII repair slows down with decreasing temperature, while rates of photodamage and recovery, measured under laboratory conditions at 20°C, were similar in these leaves. We propose that low temperatures during late autumn hinder repair and lead to accumulation of non-functional PSII units in senescing leaves...
April 2024: Functional Plant Biology: FPB
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