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1

Hindlimb suspension - induced cell apoptosis in the posterior parietal cortex and lateral geniculate nucleus: corresponding changes in c - Fos protein and the PI3K/Akt signaling pathway

100%
Huang W., Chen C., Liu X.
Acta Neurobiologiae Experimentalis
|
2018
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tom 78
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nr 3
Recent physiological studies indicate that weightlessness reliably alters ocular structure and function, as well as the ability to process visual‑spatial information. The posterior parietal cortex (PPC) and lateral geniculate nucleus (LGN) are two key brain areas implicated in the processing of visual‑spatial information. Here, we used the modified tail‑suspension rat model to simulate the physiological effects of microgravity. Rats were divided into four groups, which exposed to the simulated microgravity environment for 0 (Control group), 7, 14, or 28 days. We found a significant increase in cellular apoptosis in the PPC and the LGN after 7 days of simulated microgravity. In addition, there was an increase in expression of c‑Fos protein in the PPC, and a repression of the PI3K/Akt signaling pathway in the LGN after 7 days. Based on these results, we conclude that short‑term simulated microgravity may induce cell apoptosis in the PPC and LGN, and reflect a neural adaptive process to accommodate a microgravity environment
2
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Ethnobotanical study on medicinal plants used by Li people in Ledong, Hainan Island, China

89%
Huang W., Li P., Liu Y., Huang W., Ju Y., Wang J., Ntumwel C. B., Long C.
Acta Societatis Botanicorum Poloniae
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2016
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tom 85
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nr 1
The paper documents on the uses of traditional medicinal plants used for treating human ailments in three villages of Ledong, a county inhabited by Liethnic group in the southwest of Hainan Province, China. Semi-structured interviews, key informant interviews and participatory observations were used to collect ethnobotanical data from February to March 2012 and in July 2013. The data collected was analyzed using descriptive statistics. Thirty native knowledgeable people were interviewed. The Li community uses 50 plant species in 36 families for medicinal purposes. The most common medicinal plant families were Leguminosae (14%), Compositae (6%), and Euphorbiaceae (6%), and the most common preparations methods were decoction (84%), crushing (38%), and poultice (34%). The traditional medicinal plants were mainly used for hemostasis (12.9%), body pains (11.4%), gastrointestinal disorders (11.4%), and trauma (10%). Twenty-four species of medicinal plants (48%) have never been reported in the literature of Li medicines. In addition, 22 species (44%) have already been studied by researchers and their extracts or compounds were good bioactives. However, the rapid socioeconomic development in the county is the main threat to the conservation of Li medicine and has resulted in the decrease in the abundance and use of medicinal plants and associated traditional knowledge. Other factors accounting for a decrease in the use of Li medicinal plants like loss of plant diversity, change of land use, and threatened traditional knowledge were equally discussed.
3

Phytoplankton community characteristics in rice paddy fields under different nitrogen fertiliser applications

88%
Liu Y., Zou G., Yuan Q., Huang W., Zhou W.
Acta Physiologiae Plantarum
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2020
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tom 42
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nr 03
4

Trihelix family transcription factors in tea plant (Camellia sinensis): identification, classification, and expression profiles response to abiotic stress

88%
Li H., Huang W., Liu Z.-W., Wu Z.-J., Zhuang J.
Acta Physiologiae Plantarum
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2017
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tom 39
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nr 10
5

Evaluation of genetic diversity and population structure of polygonati rhizoma germplasms: implications for better crop development and conservation of a traditional Chinese medicine

76%
Jiao J., Bai Z., Huang W., Xia P., Liu F., Ma C., Liang Z.
Acta Physiologiae Plantarum
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2018
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tom 40
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nr 10
6

Application of ethanol and fatty acids induces Ca2plus responses in pancreatic stellate cells in vitro and leads to activation of these cells in vivo

76%
Ferdek P. E., Jakubowska M. A., Zhang X., Huang W., Sutton R., Petersen O. H.
Acta Biochimica Polonica
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2018
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tom 65
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nr S2
7

Identification of candidate genes associated with male sterility in CMS7311 of heading Chinese cabbage (Brassica campestris L. ssp. pekinensis)

76%
Xu X., Sun X., Zhang J., Huang W., Zhang L., Fang Z.
Acta Physiologiae Plantarum
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2013
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tom 35
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nr 11
Polima (pol) cytoplasmic male sterility (CMS) is reported to be regulated by orf224, but the molecular mechanisms of CMS are less known. In previous research, CMS7311 of heading Chinese cabbage (Brassica campestris L.ssp. pekinensis) was successfully generated from a pol-like CMS, named 77A. To further understand the molecular mechanisms of this male sterility, cDNA-AFLP and qRT-PCR were used to identify genes differentially expressed during flower bud development between cytoplasmic male-sterile plant (Ms) and male-fertile plant (Mf) derived from the hybrid of CMS7311 and a restorer (Rf). Thirty-two transcripts of different fragments (TDFs) of over 80 bp in length were identified using cDNA-AFLP. Among them, ten TDFs were found expressing in Ms bud, and the others expressing in Mf bud. Gene ontology analysis revealed that these genes were involved in stress response, synthesis and metabolism of fatty acid, cell reconstruction, etc. Further, five genes closely related to male sterile were selected and their expression during the flower bud development of Ms and Mf line were investigated by qRT-PCR. Three genes, BcGRP17, BcMS2, and BcPME31, which were necessary for normal male organ development, showed significantly lower expressions in Ms bud; two genes, BcROPGEF8 and BcTNL3, were induced with significantly higher expression in Ms bud by unknown stress and involved in the formation of male sterility. Further work will be focused on cloning these genes and identifying their functions in the male-sterile process of heading Chinese cabbage CMS7311.
8

Carbon accumulation in the bulk soil and different soil fractions during the rehabilitation of desertified grassland in Horqin Sandy Land (Northern China)

76%
Li Y., Zhao X., Wang S., Zhang F., Lian J., Huang W., Mao W.
Polish Journal of Ecology
|
2015
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tom 63
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nr 1
Desertification, which affects more than two-thirds of the world's arid and semi-arid regions, is a significant global ecological and environmental problem. There is a strong link between desertification of the drylands and emission of CO₂ from soil and vegetation to the atmosphere. The Horqin Sandy Land is a severely desertified area in China's agro-pastoral ecotone due to its fragile ecology, combined with unsustainable land management. We estimated changes of organic carbon content in the bulk soil (0–5 cm), in the light-fraction of soil organic matter (based on density fractionation), and in the various particle-size fractions in areas with mobile sand dunes after implementing grazing exclusion (12 and 27 years) and tree and shrub planting (22 and 24 years). Carbon stocks in the bulk soil and all soil density and particle-size fractions increased significantly in the exclosure and plantation plots. The average rates of carbon accumulation in the bulk soil in the exclosure and plantation plots were 16.0 and 17.8 g m⁻² y⁻¹, respectively, versus corresponding values of 2.3 and 7.1 g m⁻² y⁻¹ for the light fraction, 4.3 and 8.0 g m⁻² y⁻¹ for the coarse fraction, 5.0 and 3.4 g m⁻² y⁻¹ for the fine sand, 4.5 and 4.2 g m⁻² y⁻¹ for the very fine sand, and 1.8 and 1.8 g m⁻² y⁻¹ for the silt clay fraction. The older the exclosure and plantation, the more carbon accumulated in the bulk soil and in each fraction. The carbon pool exceeded the level in non-desertified grasslands after 27 years of grazing exclosure and 24 years of the shrub plantation. Our results suggest that both grazing exclusion and planting trees and shrubs can restore desertified grassland, creating a high potential for sequestering soil carbon, but that the plantations appeared to accumulate soil carbon faster than the exclosures.
9

Analysis of biochemical and physiological changes in wheat tissue culture using different germplasms and explant types

64%
Yang S., Xu K., Wang Y., Bu B., Huang W., Sun F., Liu S., Xi Y.
Acta Physiologiae Plantarum
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2015
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tom 37
|
nr 06
To select adequate wheat germplasms for genetic transformation, tissue culture efficiency of 21 different wheat lines (Einkorn, Emmer, Durum wheat, etc.) were compared, along with two different explants, namely, immature embryo and mature embryo. The results showed that the average differentiation rate and regeneration rate of immature embryo calli (46.5 and 20.82 %) were better than those for mature embryo calli (14.03 and 4.37 %). The best genotypes for immature embryo callus culture were ‘Ningchun 16’ and ‘Ei 15’, ‘Xiaoyan 22’, followed by ‘Durum 332’ and ‘Tr 256’. The best genotypes for mature embryo callus culture were ‘Ying 4286’, ‘Yunyin 01’, and ‘Xiaoyan 22’. To analyze how physiological and biochemical settings influence the totipotency of calli, different physiological and biochemical indices were analyzed. Differences between immature embryo callus and mature embryo callus were significant, as well as differences of most indices among different wheat types. The interaction effects between explant types and genotypes were also significant. Correlation analysis results showed that the total phenol and soluble sugar contents were significantly correlated with callus differentiation and regeneration rates.
10

Photosynthetic performance and growth traits in Pennisetum centrasiaticum exposed to drought and rewatering under different soil nutrient regimes

64%
Luo Y., Zhao X., Qu H., Zuo X., Wang S., Huang W., Luo Y., Chen M.
Acta Physiologiae Plantarum
|
2014
|
tom 36
|
nr 02
Responses of plants exposed to drought and rewatering have been well documented; however, little is known concerning strategies of psammophyte to drought and rewatering under different soil nutrient regimes. For this study, Pennisetum centrasiaticum under two soil nutrient regimes was subjected to progressive drought and subsequent rewatering. Soil water status, gas exchange characteristics, chlorophyll a fluorescence characteristics as well as biomass traits were measured to investigate ecophysiological responses. Net photosynthesis rate (Pn), stomatal conductance (gs), water use efficiency, maximum quantum efficiency of photosynthesis system II (PSII, FV/ FM), electron transport flux per cross section (ET₀/CS₀), and performance index on cross section basis (PICS) were suppressed during drought periods for both nutrient regimes. Meanwhile, leaf intercellular CO₂ concentration (Ci), minimal fluorescence intensity (F₀), and dissipated energy flux per cross section (DI₀/CS₀) increased. Reversible downregulation of PSII photochemistry and enhanced thermal dissipation of excess excitation energy (DI₀/CS₀) contributed to enhanced photo-protection in drought-stressed plants. Thus, the results indicate that P. centrasiaticum is capable of withstanding and surviving extreme drought events, and the recovery pattern of stressed P. centrasiaticum under both nutrient regimes was similar. However, fertilization increased the biomass and the variation in gas exchange and chlorophyll a fluorescence characteristics during drought periods. Additionally, fertilization accelerated the process of drought and aggravated stress under extreme drought events. Thus, the fertilization strategy used in P. centrasiaticum restoration should be carefully selected—fertilization may not always be beneficial.
11

Coding single nucleotide polymorphisms and SmCPS1 and SmKSL1 subcellular localization are associated with tanshinone biosynthesis in Salvia miltiorrhiza Bunge roots

64%
Bai Z., Liu J., Zhang C., Huang W., Liang Z., Yan X., Liu Y., Zhu Y.
Acta Physiologiae Plantarum
|
2018
|
tom 40
|
nr 01
Tanshinone is one of the major medicinal components of the roots of Salvia miltiorrhiza Bunge, and SmCPS1 and SmKSL1 are key enzymes in the tanshinone biosynthesis pathway. To increase our understanding of the coding single nucleotide polymorphisms (cSNPs) involved in tanshinone biosynthesis, seven S. miltiorrhiza landraces were examined. Our results revealed that the tanshinone content was significantly different among the seven landraces. In total, 48 cSNPs in SmCPS1 and 47 cSNPs in SmKSL1 were identified, and of these, 38 and 42 cSNPs, respectively, were associated with tanshinone content. The highest A/G and C/T base substitution rates were in SmCPS1 and SmKSL1, respectively. SmKSL1 expression was significantly, positively correlated with tanshinone IIA and tanshinone I contents, and SmCPS1 expression was significantly associated with tanshinone IIA content. Interestingly, subcellular SmCPS1 and SmKSL1 expression was enriched in the plastids. Therefore, cSNPs of SmCPS1 and SmKSL1 are involved in tanshinone biosynthesis in the plastids, where SmCPS1 and SmKSL1 enzymes catalyze tanshinone production in this species.
12

Application and prospect of graphene and its composites in wastewater treatment

64%
Liu J., Chen F., Yao Q., Sun Y., Huang W., Wang R., Yang B., Li W., Tian J.
Polish Journal of Environmental Studies
|
2020
|
tom 29
|
nr 6
13

Decreased expression of the human carbonyl reductase 2 gene HCR2 in hepatocellular carcinoma

64%
Liu S., Ma L., Huang W., Shai Y., Ji X., Ding L., Liu Y., Yu L., Zhao S.
Cellular and Molecular Biology Letters
|
2006
|
tom 11
|
nr 2
Altered gene expression was associated with the induction and maintenance of hepatocellular carcinoma (HCC). To determine the significance of HCR2 in HCC, here we compare the expression levels of HCR2 in carcinoma and in paired non-carcinoma tissues using semiquantitative reverse-transcription polymerase chain reaction (RT-PCR), Western blot analysis, and immunohistochemical staining. The expression ratio (ER) of HCR2 between the tumor and paired tumor-free tissues was calculated for each case and the data was clinicopathologically analyzed. The expression of HCR2 mRNA was found to be significantly decreased in HCC tissues compared with paired normal tissues (P < 0.001). HCR2 was downregulated in 58% (n = 22) of 38 HCC patients. The ER of HCR2 was higher in Edmondson’s grade I/II carcinomas than that in Edmondson’s grade III/IV carcinomas (P < 0.05). Western blot analysis showed HCR2 to be notably depressed in carcinoma tissues in 3 out of 4 HCC patients. Immunohistochemical staining indicated most HCR2 protein accumulated in non-carcinoma cells. These results suggested that altered HCR2 expression might play roles in the carcinogenesis and progression of HCC, and it could be a clinical marker for prognosis, and a molecular target for screening potential anti-HCC drugs.
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