keyword
https://read.qxmd.com/read/37674132/protein-intrinsically-disordered-region-prediction-by-combining-neural-architecture-search-and-multi-objective-genetic-algorithm
#21
JOURNAL ARTICLE
Yi-Jun Tang, Ke Yan, Xingyi Zhang, Ye Tian, Bin Liu
BACKGROUND: Intrinsically disordered regions (IDRs) are widely distributed in proteins and related to many important biological functions. Accurately identifying IDRs is of great significance for protein structure and function analysis. Because the long disordered regions (LDRs) and short disordered regions (SDRs) share different characteristics, the existing predictors fail to achieve better and more stable performance on datasets with different ratios between LDRs and SDRs. There are two main reasons...
September 7, 2023: BMC Biology
https://read.qxmd.com/read/37657095/successful-magnetic-resonance-guided-focused-ultrasound-treatment-of-tremor-in-patients-with-a-skull-density-ratio-of-0-4-or-less
#22
JOURNAL ARTICLE
Artur Vetkas, Alexandre Boutet, Can Sarica, Jurgen Germann, Dave Gwun, Kazuaki Yamamoto, Hyun Ho Jung, Afnan Alkhotani, Nardin Samuel, Stefan Lang, Christopher R Conner, Gavin J B Elias, Cletus Cheyuo, Clement Chow, Brendan Santyr, Christian Iorio-Morin, Andrew Z Yang, Carolina Candeias da Silva, Alfonso Fasano, Suneil K Kalia, Andres M Lozano
OBJECTIVE: The use of magnetic resonance-guided focused ultrasound (MRgFUS) for the treatment of tremor-related disorders and other novel indications has been limited by guidelines advocating treatment of patients with a skull density ratio (SDR) above 0.45 ± 0.05 despite reports of successful outcomes in patients with a low SDR (LSDR). The authors' goal was to retrospectively analyze the sonication strategies, adverse effects, and clinical and imaging outcomes in patients with SDR ≤ 0...
September 1, 2023: Journal of Neurosurgery
https://read.qxmd.com/read/37637182/moxibustion-for-medical-personnel-with-negative-emotion-and-insomnia-during-covid-19-pandemic-a-randomized-controlled-trial
#23
JOURNAL ARTICLE
Xiying Li, Xiaojuan Li, Xian Wang, Xuan Yin, Shanshan Li, Junyi Wu, Xiumei Ren, Wei Zhang, Yiqun Mi, Shifen Xu
BACKGROUND: We conducted this randomized controlled trial (RCT) to evaluate the effectiveness and safety of moxibustion at Sanyinjiao (SP6) acupoint for treatment of negative mood and sleep quality in healthcare workers during the 2019 coronavirus disease (COVID-19). METHODS: A total of 180 participants were divided in a 1:1 ratio into two groups, the treatment group (for moxibustion) and the control group (for no treatment). The treatment group had a 30-minute moxibustion therapy once a day for two weeks, followed by a two-week follow-up...
September 2023: Integrative Medicine Research
https://read.qxmd.com/read/37566820/using-a-new-deep-learning-method-for-3d-cephalometry-in-patients-with-hemifacial-microsomia
#24
JOURNAL ARTICLE
Meng Xu, Bingyang Liu, Zhaoyang Luo, Min Sun, Yongqian Wang, Ningbei Yin, Xiaojun Tang, Tao Song
Deep learning algorithms based on automatic 3D cephalometric marking points about people without craniomaxillofacial deformities have achieved good results. However, there has been no previous report about hemifacial microsomia (HFM). The purpose of this study is to apply a new deep learning method based on a 3D point cloud graph convolutional neural network to predict and locate landmarks in patients with HFM based on the relationships between points. The authors used a PointNet++ model to investigate the automatic 3D cephalometry...
September 1, 2023: Annals of Plastic Surgery
https://read.qxmd.com/read/37489598/meta-dna-strand-displacement-for-sub-micron-scale-autonomous-reconfiguration
#25
JOURNAL ARTICLE
Meiyuan Qi, Wenhe Ma, Qin Xu, Fei Wang, Ping Song, Sisi Jia, Xiaolei Zuo, Mingqiang Li, Guangbao Yao, Chunhai Fan
Dynamic molecular interactions in chemical reaction networks lead to complex behaviors in living systems. Whereas recent advances in programming DNA molecular reactions have reached a high level of complexity at molecular and nanometer scales, achieving programmable autonomous behavior at submicron or even larger scales remains challenging. Here, we present a mechanism of meta-DNA strand displacement reactions (M-SDRs) that is mediated solely by meta-toehold (M-toehold) using versatile submicron building blocks of meta-DNA (M-DNA)...
July 25, 2023: Journal of the American Chemical Society
https://read.qxmd.com/read/37378338/expanded-male-sex-determining-region-conserved-during-the-evolution-of-homothallism-in-the-green-alga-volvox
#26
JOURNAL ARTICLE
Kayoko Yamamoto, Ryo Matsuzaki, Wuttipong Mahakham, Wirawan Heman, Hiroyuki Sekimoto, Masanobu Kawachi, Yohei Minakuchi, Atsushi Toyoda, Hisayoshi Nozaki
Male and female genotypes in heterothallic (self-incompatible) species of haploid organisms, such as algae and bryophytes, are generally determined by male and female sex-determining regions (SDRs) in the sex chromosomes. To resolve the molecular genetic basis for the evolution of homothallic (bisexual and self-compatible) species from a heterothallic ancestor, we compared whole-genome data from Thai and Japanese genotypes within the homothallic green alga Volvox africanus . The Thai and Japanese algae harbored expanded ancestral male and female SDRs of ∼1 Mbp each, representing a direct heterothallic ancestor...
June 16, 2023: IScience
https://read.qxmd.com/read/37360717/bioinformatic-analysis-of-short-chain-dehydrogenase-reductase-proteins-in-plant-peroxisomes
#27
JOURNAL ARTICLE
Yuchan Zhang, Xiaowen Wang, Xinyu Wang, Yukang Wang, Jun Liu, Saisai Wang, Weiran Li, Yijun Jin, Delara Akhter, Jiarong Chen, Jianping Hu, Ronghui Pan
Peroxisomes are ubiquitous eukaryotic organelles housing not only many important oxidative metabolic reactions, but also some reductive reactions that are less known. Members of the short-chain dehydrogenase/reductase (SDR) superfamily, which are NAD(P)(H)-dependent oxidoreductases, play important roles in plant peroxisomes, including the conversion of indole-3-butyric acid (IBA) to indole-3-acetic acid (IAA), auxiliary β-oxidation of fatty acids, and benzaldehyde production. To further explore the function of this family of proteins in the plant peroxisome, we performed an in silico search for peroxisomal SDR proteins from Arabidopsis based on the presence of peroxisome targeting signal peptides...
2023: Frontiers in Plant Science
https://read.qxmd.com/read/37342984/the-covid-19-crisis-and-the-incidence-of-alcohol-related-deaths-in-poland
#28
JOURNAL ARTICLE
Andrzej Silczuk, Julia Helena Gujska, Bogdan Wojtyniak, Katarzyna Camlet, Maciej Stępień, Jakub Stokwiszewski, Grzegorz Piotr Juszczyk
BACKGROUND Identifying risk and protective factors for excessive alcohol consumption can inform targeted health policies, reducing the impact of potential mental health crises. This study examined the validity and reliability of COVID-19-related death data and explored the correlations among age, sex, residential status, alcohol abuse, and healthcare access. MATERIAL AND METHODS This analysis of Polish residents' mortality relies on individual data from the register of deaths maintained by Statistics Poland...
June 21, 2023: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://read.qxmd.com/read/37335080/a-curated-list-of-targeted-optimized-promiscuous-ketoreductases-top-k
#29
JOURNAL ARTICLE
Santanu Datta, Anirudh P Shanbhag, Sreenath Rajagopal, Arindam Ghatak, Nainesh Katagihallimath, Ramaswamy Subramanian
Enzymes are either specific or promiscuous catalysts in nature. The latter is portrayed by protein families like CYP450Es, Aldo-ketoreductases, and Short/Medium-chain dehydrogenases which participate in detoxification or secondary metabolite production. However, enzymes are evolutionarily 'blind' to an ever-increasing synthetic substrate library. Industries and labs have circumvented this by high-throughput screening or site-specific engineering to synthesize the product of interest. However, this paradigm entails cost and time-intensive one-enzyme, one-substrate catalysis model...
June 19, 2023: Biochemical Journal
https://read.qxmd.com/read/37313343/increased-abundance-of-bacteria-of-the-family-muribaculaceae-achieved-by-fecal-microbiome-transplantation-correlates-with-the-inhibition-of-kidney-calcium-oxalate-stone-deposition-in-experimental-rats
#30
JOURNAL ARTICLE
Yan Wang, JinBo Sun, Sen Xie, Yu Zhou, Tao Wang, ZhenYu Liu, ChaoSheng Li, Lei Gao, TieJun Pan
BACKGROUND: The incidence of nephrolithiasis is increasing rapidly worldwide. Calcium oxalate is the most common constituent, contributing to approximately 80% of all kidney stones. The gut microbiome, through its oxalate-degrading ability, may play a role in decreasing morbidity due to urinary calculus. Fecal microbiome transplantation (FMT) has been reported to be effective in restoring the gastrointestinal microbial community in different conditions. The transplantation of whole communities that have oxalate-degrading function may be a more effective strategy than the transplantation of isolated strains...
2023: Frontiers in Cellular and Infection Microbiology
https://read.qxmd.com/read/37299936/cooperative-multiband-spectrum-sensing-using-radio-environment-maps-and-neural-networks
#31
JOURNAL ARTICLE
Yanqueleth Molina-Tenorio, Alfonso Prieto-Guerrero, Rafael Aguilar-Gonzalez, Miguel Lopez-Benitez
Cogitive radio networks (CRNs) require high capacity and accuracy to detect the presence of licensed or primary users (PUs) in the sensed spectrum. In addition, they must correctly locate the spectral opportunities (holes) in order to be available to nonlicensed or secondary users (SUs). In this research, a centralized network of cognitive radios for monitoring a multiband spectrum in real time is proposed and implemented in a real wireless communication environment through generic communication devices such as software-defined radios (SDRs)...
May 30, 2023: Sensors
https://read.qxmd.com/read/37296191/reorganization-of-the-ancestral-sex-determining-regions-during-the-evolution-of-trioecy-in-pleodorina-starrii
#32
JOURNAL ARTICLE
Kohei Takahashi, Shigekatsu Suzuki, Hiroko Kawai-Toyooka, Kayoko Yamamoto, Takashi Hamaji, Ryo Ootsuki, Haruyo Yamaguchi, Masanobu Kawachi, Tetsuya Higashiyama, Hisayoshi Nozaki
The coexistence of three sexual phenotypes (male, female and bisexual) in a single species, 'trioecy', is rarely found in diploid organisms such as flowering plants and invertebrates. However, trioecy in haploid organisms has only recently been reported in a green algal species, Pleodorina starrii. Here, we generated whole-genome data of the three sex phenotypes of P. starrii to reveal a reorganization of the ancestral sex-determining regions (SDRs) in the sex chromosomes: the male and bisexual phenotypes had the same "male SDR" with paralogous gene expansions of the male-determining gene MID, whereas the female phenotype had a "female SDR" with transposition of the female-specific gene FUS1 to autosomal regions...
June 9, 2023: Communications Biology
https://read.qxmd.com/read/37285720/crystal-structure-of-the-3-ketodihydrosphingosine-reductase-tsc10-from-cryptococcus-neoformans
#33
JOURNAL ARTICLE
Panqi Zhao, Zewen Zhuang, Xueyan Guan, Jinjin Yang, Weiwei Wang, Zhihe Kuang
The second step in the de novo sphingolipid biosynthesis is the reduction of 3-ketodihydrosphingosine by 3-ketodihydrosphingosine reductase (KDSR) to produce dihydrosphingosine (sphinganine). Fungal TSC10 and mammalian KDSR (also named FVT-1) proteins are the enzymes responsible for this process and they belong to the short-chain dehydrogenase/reductase (SDR) superfamily. Albeit that both fungal and mammalian 3-ketodihydrosphingosine reductases were identified more than a decade ago, no structure of these enzymes from any species has been experimentally determined...
May 26, 2023: Biochemical and Biophysical Research Communications
https://read.qxmd.com/read/37284054/thai-word-segmentation-with-a-brain-inspired-sparse-distributed-representations-learning-memory
#34
JOURNAL ARTICLE
Thasayu Soisoonthorn, Herwig Unger, Maleerat Maliyaem
Word segmentation is necessary for many natural language processing, especially Thai language, that is, unsegmented words. However, wrong segmentation causes terrible performance in the final result. In this study, we propose two new brain-inspired methods based on Hawkins' approach to address Thai word segmentation. Sparse Distributed Representations (SDRs) are used to model the neocortex structure of the brain to store and transfer information. The first proposed method, THDICTSDR, improves the dictionary-based approach by utilizing SDRs to learn the surrounding context and combine with n-gram to select the correct word...
2023: Computational Intelligence and Neuroscience
https://read.qxmd.com/read/37245903/employing-deuterium-kinetic-isotope-effects-to-uncover-the-mechanism-of-r-3-hydroxybutyrate-dehydrogenase
#35
JOURNAL ARTICLE
Teresa F G Machado, Rafael G da Silva
Short-chain dehydrogenases/reductases (SDR) form a large enzyme superfamily playing important roles in health and disease. Furthermore, they are useful tools in biocatalysis. Unveiling the nature of the transition state for hydride transfer is a crucial undertaking toward defining the physicochemical underpinnings of catalysis by SDR enzymes, including possible contributions from quantum mechanical tunneling. Primary deuterium kinetic isotope effects can uncover the contribution from chemistry to the rate-limiting step and potentially provide detailed information on the hydride-transfer transition state in SDR-catalyzed reactions...
2023: Methods in Enzymology
https://read.qxmd.com/read/37118730/relationship-between-covid-pandemic-anxiety-and-sleep-disorder-with-menstrual-disorders-among-female-medical-workers
#36
JOURNAL ARTICLE
Wenxi Sun, Liping Xia, Caifang Ji, Qianqian Wei, Jun Zhang, Sidi He, Xuqin Wang, Xueqin Shen, Xiaobin Zhang, Chuanwei Li
BACKGROUND: It has been more than 2 years since the 2019 novel coronavirus disease (COVID-19) pandemic destabilized the world, adversely affecting not only physical health, but also mental health. During this time, frontline medical workers were at a greater health risk, especially female medical workers. Changes or abnormalities in the menstrual cycle-an important indicator of women's health-may jeopardize female reproductive functioning. Considering that emotional health and sleep status may be related to the menstrual cycle, this study aimed to investigate the association between menstrual cycle changes, anxiety, sleep dysfunction, and other factors among female medical workers during the COVID-19 pandemic...
April 28, 2023: BMC Women's Health
https://read.qxmd.com/read/37091042/towards-wearable-estimation-of-tidal-volume-via-electrocardiogram-and-seismocardiogram-signals
#37
JOURNAL ARTICLE
Moamen M Soliman, Venu G Ganti, Omer T Inan
The current COVID-19 pandemic highlights the critical importance of ubiquitous respiratory health monitoring. The two fundamental elements of monitoring respiration are respiration rate (the frequency of breathing) and tidal volume (TV, the volume of air breathed by the lungs in each breath). Wearable sensing systems have been demonstrated to provide accurate measurement of respiration rate, but TV remains challenging to measure accurately with wearable and unobtrusive technology. In this work, we leveraged electrocardiogram (ECG) and seismocardiogram (SCG) measurements obtained with a custom wearable sensing patch to derive an estimate of TV from healthy human participants...
September 15, 2022: IEEE Sensors Journal
https://read.qxmd.com/read/37075844/sdr16c5-and-sdr16c6-control-a-dormant-pathway-at-a-bifurcation-point-between-meibogenesis-and-sebogenesis
#38
JOURNAL ARTICLE
Igor A Butovich, Amber Wilkerson, Kelli R Goggans, Olga V Belyaeva, Natalia Y Kedishvili, Seher Yuksel
Genes Sdr16c5 and Sdr16c6 encode proteins that belong to a superfamily of short-chain dehydrogenases/reductases (SDR16C5 and SDR16C6). Simultaneous inactivation of these genes in double-knockout (DKO) mice was previously shown to result in a marked enlargement of the mouse Meibomian and sebaceous glands (MGs and SGs, respectively). However, the exact roles of SDRs in physiology and biochemistry of MGs and SGs have not been established yet. Therefore, we characterized, for the first time, meibum and sebum of Sdr16c5/Sdr16c6-null (DKO) mice using high-resolution mass spectrometry and liquid chromatography...
April 17, 2023: Journal of Biological Chemistry
https://read.qxmd.com/read/36950098/changes-in-mortality-of-polish-residents-in-the-early-and-late-old-age-due-to-main-causes-of-death-from-2000-to-2019
#39
JOURNAL ARTICLE
Monika Burzyńska, Małgorzata Pikala
PURPOSE: The aim of the study was to assess mortality trends in Poland between 2000 and 2019 in the early and late old age population (65-74 years and over 75 years). METHODS: The work used data on all deaths of Polish residents aged over 65 years ( N = 5,496,970). The analysis included the five most common major groups of causes of death: diseases of the circulatory system, malignant neoplasms, diseases of the respiratory system, diseases of the digestive system and external causes of mortality...
2023: Frontiers in Public Health
https://read.qxmd.com/read/36945442/structurally-divergent-and-recurrently-mutated-regions-of-primate-genomes
#40
Yafei Mao, William T Harvey, David Porubsky, Katherine M Munson, Kendra Hoekzema, Alexandra P Lewis, Peter A Audano, Allison Rozanski, Xiangyu Yang, Shilong Zhang, David S Gordon, Xiaoxi Wei, Glennis A Logsdon, Marina Haukness, Philip C Dishuck, Hyeonsoo Jeong, Ricardo Del Rosario, Vanessa L Bauer, Will T Fattor, Gregory K Wilkerson, Qing Lu, Benedict Paten, Guoping Feng, Sara L Sawyer, Wesley C Warren, Lucia Carbone, Evan E Eichler
To better understand the pattern of primate genome structural variation, we sequenced and assembled using multiple long-read sequencing technologies the genomes of eight nonhuman primate species, including New World monkeys (owl monkey and marmoset), Old World monkey (macaque), Asian apes (orangutan and gibbon), and African ape lineages (gorilla, bonobo, and chimpanzee). Compared to the human genome, we identified 1,338,997 lineage-specific fixed structural variants (SVs) disrupting 1,561 protein-coding genes and 136,932 regulatory elements, including the most complete set of human-specific fixed differences...
March 7, 2023: bioRxiv
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