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Comparative Metabolite Profiling and Hormone Analysis of Perennial and Annual Rice
Xiuqin Zhao,Ting Zhang,Liyu Huang,Huimin Wu,Fengyi Hu,Fan Zhang,Linghua Zhu,Binying Fu 한국식물학회 2012 Journal of Plant Biology Vol.55 No.1
Perenniality is one of the important topics in rice breeding which is generally accompanied by complex physiobiochemical processes. To understand the metabolic characteristics of perennial rice, in the present study, gas chromatography–mass spectrometry and enzyme-linked immunosorbent assays were used to profile the distribution patterns of 33 primary metabolites and hormones [indole-3-acetic acid (IAA) and zeatin riboside (ZR)] of annual (RD23) and perennial (Oryza longistaminata and the line AA with RD23 genetic background) rice genotypes. Results showed that both metabolites and hormones have distinct genotype and organ distribution patterns, and considerable variations were observed between the metabolites in stem bases of perennial and annual rice. Most of the metabolites,including sugars, organic acids, and amino acids, significantly accumulated in the stem bases of perennial rice by decreasing the level in roots and leaves. Fifteen metabolites consistently accumulated significantly in the stem bases of both perennial genotypes. Additionally, the organ-level IAA content and IAA/ZR ratio in the two perennials were considerably higher than those in RD23. The present study indicated that the significant accumulation of the metabolites at stem base and the higher IAA/ZR ratio are involved
Abnormal Brain Activity Changes in Patients with Migraine: A Short-Term Longitudinal Study
Ling Zha,Jixin Liu,Xuemei Yan,Wanghuan Dun,Jing Yang,Liyu Huang,Yuan Kai,Dahua Yu,Wei Qin,Tian Jie,Fanrong Liang 대한신경과학회 2014 Journal of Clinical Neurology Vol.10 No.3
Background and Purpose Whether or not migraine can cause cumulative brain alterationsdue to frequent migraine-related nociceptive input in patients is largely unclear. The aim of thisstudy was to characterize longitudinal changes in brain activity between repeated observationswithin a short time interval in a group of female migraine patients, using resting-state functional magnetic resonance imaging. Methods Nineteen patients and 20 healthy controls (HC) participated in the study. Regionalhomogeneity (ReHo) and functional interregional connectivity were assessed to determine thefocal and global features of brain dysfunction in migraine. The relationship between changes inheadache parameters and longitudinal brain alterations were also investigated. Results All patients reported that their headache activity increased over time. AbnormalReHo changes in the patient group relative to the HC were found in the putamen, orbitofrontalcortex, secondary somatosensory cortex, brainstem, and thalamus. Moreover, these brain regions exhibited longitudinal ReHo changes at the 6-week follow-up examination. These headache activity changes were accompanied by disproportionately dysfunctional connectivity inthe putamen in the migraine patients, as revealed by functional connectivity analysis, suggesting that the putamen plays an important role in integrating diverse information among othermigraine-related brain regions. Conclusions The results obtained in this study suggest that progressive brain aberrations in migraine progress as a result of increased headache attacks.
Tang, Jianhong,Zhang, Zhiyan,Yang, Bin,Guo, Yuanmei,Ai, Huashui,Long, Yi,Su, Ying,Cui, Leilei,Zhou, Liyu,Wang, Xiaopeng,Zhang, Hui,Wang, Chengbin,Ren, Jun,Huang, Lusheng,Ding, Nengshui Asian Australasian Association of Animal Productio 2017 Animal Bioscience Vol.30 No.1
Objective: Three genome-wide association studies (GWAS) and a meta-analysis of GWAS were conducted to explore the genetic mechanisms underlying variation in pig teat number. Methods: We performed three GWAS and a meta-analysis for teat number on three pig populations, including a White Duroc${\times}$Erhualian $F_2$ resource population (n = 1,743), a Chinese Erhualian pig population (n = 320) and a Chinese Sutai pig population (n = 383). Results: We detected 24 single nucleotide polymorphisms (SNPs) that surpassed the genome-wide significant level on Sus Scrofa chromosomes (SSC) 1, 7, and 12 in the $F_2$ resource population, corresponding to four loci for pig teat number. We highlighted vertnin (VRTN) and lysine demethylase 6B (KDM6B) as two interesting candidate genes at the loci on SSC7 and SSC12. No significant associated SNPs were identified in the meta-analysis of GWAS. Conclusion: The results verified the complex genetic architecture of pig teat number. The causative variants for teat number may be different in the three populations