The Experts below are selected from a list of 2508 Experts worldwide ranked by ideXlab platform

Zhongyi Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Alleviatory effect of spent Pleurotus eryngii Quel substrate on replant problem of Rehmannia glutinosa Libosch.
    International Journal of Phytoremediation, 2017
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Liuji Zhang, Mingjie Li, Fengji Wang, Zhongyi Zhang
    Abstract:

    Rehmannia glutinosa Libosch. is a medicinal plant cultivated at a commercial scale in China. However, replanting problems result in a severe decline in both the biomass and quality of its r...

  • assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its autotoxic circle
    Plant and Soil, 2016
    Co-Authors: Bao Zhang, Xuanzhen Li, Li Gu, Junyi Zhang, Liuji Zhang, Mingjie Li, Fengqing Wang, Wanqian Tu, Zhongyi Zhang
    Abstract:

    Aims This study attempted to elucidate the underlying correlations among replant problems of Rehmannia glutinosa, the autotoxins and microbes within its root-zone soil.

  • Correlation of Allelopathy of Rehmannia glutinosa Root Exudates and Their Phenolic Acids Contents
    Journal of Chinese medicinal materials, 2015
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Junyi Zhang, Liuji Zhang, Zhongyi Zhang
    Abstract:

    OBJECTIVE: To study the allelopathic potential of Rehmannia glutinosa root exudates in different growth stages and dynamic change of phenolic acids contents, in order to reveal the correlation between phenolic acids and allelbpathy effect of Rehmannia glutinosa. METHODS: Root exudates of Rehmannia glutinosa in different growth stages were obtained by a new instrument which was used to collect the root exudates of xerophytes. After that, bioassay was applied to estimate allelopathy effect of the root exudates. HPLC was used to determine the contents of five phenolic acids (coumaric acid, 4-hydroxybenzoic acid, vanillic acid, syringic acid and ferulic acid) which were reported to relate to allelopathy effect. Correlation of bioassay data and HPLC data were also analyzed. RESULTS: The germination rate of radish after soaking by root exudates of different growth stages of Rehmannia glutinosa was 97. 89%, 92. 38%, 89. 52%, 85. 71%, 85. 71%, 84. 76% and 83. 81%, respectively, which indicated a decline trend. And significant differences were shown from previous enlargement stage compared with the contrast. The bud length after soaking by root exudates was 5. 68, 5. 76, 5. 91, 5. 65, 5. 41, 5. 28 and 5. 11 cm, separately, which increased slightly before decreasing gradually. Previous enlargement stage was also the initial period when significant differences were shown. Five phenolic acids were detected in root exudates by HPLC, while the change of their contents and the allelopathy effect of root exudates did not perform a similar trend. Correlation analysis indicated the five phenolic acids did not have significant relevance (r = - 0. 666 - 0. 590) with germination rate and bud length of radish except the negative correlation (r = -0. 833, P

  • differential mirna expression in Rehmannia glutinosa plants subjected to continuous cropping
    BMC Plant Biology, 2011
    Co-Authors: Yanhui Yang, Xinjian Chen, Junying Chen, Haixia Xu, Juan Li, Zhongyi Zhang
    Abstract:

    Background The productivity of the medicinally significant perennial herb Rehmannia glutinosa is severely affected after the first year of cropping. While there is some information available describing the physiological and environmental causes of this yield decline, there is as yet no data regarding the changes in gene expression which occur when the species is continuously cropped.

  • identification of novel and conserved micrornas in Rehmannia glutinosa l by solexa sequencing
    Plant Molecular Biology Reporter, 2011
    Co-Authors: Yanhui Yang, Xinjian Chen, Junying Chen, Haixia Xu, Juan Li, Zhongyi Zhang
    Abstract:

    We report the use of a high throughput (Solexa) sequencing platform to obtain the sequences of a large number of microRNAs (miRNAs) from the Chinese medicinal plant Rehmannia glutinosa L. The analysis of >14,000,000 sequence reads allowed the identification of seven novel miRNAs (comprising seven miRNA families) and conserved 89 miRNAs (comprising 25 miRNA families) in R. glutinosa. The relative abundance of some these miRNAs was checked using quantitive PCR (qRT-PCR) analysis. Some putative target genes of the novel miRNAs were predicted.

Bao Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Alleviatory effect of spent Pleurotus eryngii Quel substrate on replant problem of Rehmannia glutinosa Libosch.
    International Journal of Phytoremediation, 2017
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Liuji Zhang, Mingjie Li, Fengji Wang, Zhongyi Zhang
    Abstract:

    Rehmannia glutinosa Libosch. is a medicinal plant cultivated at a commercial scale in China. However, replanting problems result in a severe decline in both the biomass and quality of its r...

  • assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its autotoxic circle
    Plant and Soil, 2016
    Co-Authors: Bao Zhang, Xuanzhen Li, Li Gu, Junyi Zhang, Liuji Zhang, Mingjie Li, Fengqing Wang, Wanqian Tu, Zhongyi Zhang
    Abstract:

    Aims This study attempted to elucidate the underlying correlations among replant problems of Rehmannia glutinosa, the autotoxins and microbes within its root-zone soil.

  • Correlation of Allelopathy of Rehmannia glutinosa Root Exudates and Their Phenolic Acids Contents
    Journal of Chinese medicinal materials, 2015
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Junyi Zhang, Liuji Zhang, Zhongyi Zhang
    Abstract:

    OBJECTIVE: To study the allelopathic potential of Rehmannia glutinosa root exudates in different growth stages and dynamic change of phenolic acids contents, in order to reveal the correlation between phenolic acids and allelbpathy effect of Rehmannia glutinosa. METHODS: Root exudates of Rehmannia glutinosa in different growth stages were obtained by a new instrument which was used to collect the root exudates of xerophytes. After that, bioassay was applied to estimate allelopathy effect of the root exudates. HPLC was used to determine the contents of five phenolic acids (coumaric acid, 4-hydroxybenzoic acid, vanillic acid, syringic acid and ferulic acid) which were reported to relate to allelopathy effect. Correlation of bioassay data and HPLC data were also analyzed. RESULTS: The germination rate of radish after soaking by root exudates of different growth stages of Rehmannia glutinosa was 97. 89%, 92. 38%, 89. 52%, 85. 71%, 85. 71%, 84. 76% and 83. 81%, respectively, which indicated a decline trend. And significant differences were shown from previous enlargement stage compared with the contrast. The bud length after soaking by root exudates was 5. 68, 5. 76, 5. 91, 5. 65, 5. 41, 5. 28 and 5. 11 cm, separately, which increased slightly before decreasing gradually. Previous enlargement stage was also the initial period when significant differences were shown. Five phenolic acids were detected in root exudates by HPLC, while the change of their contents and the allelopathy effect of root exudates did not perform a similar trend. Correlation analysis indicated the five phenolic acids did not have significant relevance (r = - 0. 666 - 0. 590) with germination rate and bud length of radish except the negative correlation (r = -0. 833, P

Ruxue Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Rehmannia glutinosa review of botany chemistry and pharmacology
    Journal of Ethnopharmacology, 2008
    Co-Authors: Ruxue Zhang, Maoxing Li
    Abstract:

    Rehmannia glutinosa, a widely used traditional Chinese herb, belongs to the family of Scrophulariaceae, and is taken to nourish Yin and invigorate the kidney in traditional Chinese medicine (TCM) and has a very high medicinal value. In recent decades, a great number of chemical and pharmacological studies have been done on Rehmannia glutinosa. More than 70 compounds including iridoids, saccharides, amino acid, inorganic ions, as well as other trace elements have been found in the herb. Studies show that Rehmannia glutinosa and its active principles possess wide pharmacological actions on the blood system, immune system, endocrine system, cardiovascular system and the nervous system. Currently, the effective monomeric compounds or active parts have been screened for the pharmacological activity of Rehmannia glutinosa and the highest quality scientific data is delivered to support the further application and exploitation for new drug development.

  • hypoglycemic effect of Rehmannia glutinosa oligosaccharide in hyperglycemic and alloxan induced diabetic rats and its mechanism
    Journal of Ethnopharmacology, 2004
    Co-Authors: Ruxue Zhang, Jinhuang Zhou, Yongxiang Zhang, Guoming Gu
    Abstract:

    Abstract The hypoglycemic and anti-diabetic effect of Rehmannia glutinosa oligosaccharide (ROS) in glucose-induced hyperglycemic and alloxan-induced diabetic rats and its mechanism was investigated in this paper. It was found that pretreatment of ROS in normal rats with 100 mg/kg for 3 days, i.p., induced a partial prevention of hyperglycemia caused by glucose (2 g/kg, i.p.), while when hyperglycemia was induced in adrenalectomized (ADX) rats, the preventive effect of ROS on hyperglycemia was lost. In alloxan-induced diabetic rats, ROS (100 mg/kg for 15 days, i.p.) showed a significant decrease in blood glucose level and hepatic glucose-6-phosphatase activity with an increase in hepatic glycogen content. Furthermore, ROS raised plasma insulin level and lowered plasma corticosterone level in alloxan-induced diabetic rats. The results indicated that oligosaccharide of Rehmannia glutinosa Libosch. exerted a significant hypoglycemic effect in normal and alloxan-induced diabetic rats. The regulatory mechanism of ROS on glucose metabolism was adrenal dependent and had a close relation with the neuroendocrine system.

Yaping Liang - One of the best experts on this subject based on the ideXlab platform.

  • treatment of primary chronic glomerulonephritis with Rehmannia glutinosa acteosides in combination with the angiotensin receptor blocker irbesartan a randomized controlled trial
    Phytotherapy Research, 2014
    Co-Authors: Ping Fu, Ping Feng, Hui Zhong, Li Zhou, Feng Chen, Yaping Liang
    Abstract:

    This study aims to assess the efficacy and safety of Rehmannia glutinosa acteosides used in combination with the angiotensin receptor blocker irbesartan to treat primary chronic glomerulonephritis. A total of 479 patients diagnosed with primary chronic glomerulonephritis were recruited from outpatient clinics and were randomly assigned to the treatment group (Rehmannia glutinosa acteosides, two 200-mg capsules, bid; and irbesartan, one 150-mg tablet, qd) or the control group (irbesartan, one 150-mg tablet, qd). The primary outcome was 24-h urinary protein. Secondary outcome measures included blood pressure, estimated glomerular filtration rate, erythrocyturia, serum alanine aminotransferase, aspartate transaminase and electrolytes. After 8 weeks of treatment, the treatment group showed a mean reduction in 24-h proteinuria of 36.42% compared to baseline, which was significantly higher than the mean reduction from baseline of 27.97% in the control group (P = 0.0278).Adverse drug reactions occurred at a similarly low rate in the treatment group (0.4%) and control group (1.2%, P = 0.3724). In the treatment of chronic glomerulonephritis, the combination of Rehmannia glutinosa acteosides and irbesartan can reduce proteinuria more effectively than irbesartan alone. Copyright © 2013 John Wiley & Sons, Ltd.

Xuanzhen Li - One of the best experts on this subject based on the ideXlab platform.

  • Alleviatory effect of spent Pleurotus eryngii Quel substrate on replant problem of Rehmannia glutinosa Libosch.
    International Journal of Phytoremediation, 2017
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Liuji Zhang, Mingjie Li, Fengji Wang, Zhongyi Zhang
    Abstract:

    Rehmannia glutinosa Libosch. is a medicinal plant cultivated at a commercial scale in China. However, replanting problems result in a severe decline in both the biomass and quality of its r...

  • assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its autotoxic circle
    Plant and Soil, 2016
    Co-Authors: Bao Zhang, Xuanzhen Li, Li Gu, Junyi Zhang, Liuji Zhang, Mingjie Li, Fengqing Wang, Wanqian Tu, Zhongyi Zhang
    Abstract:

    Aims This study attempted to elucidate the underlying correlations among replant problems of Rehmannia glutinosa, the autotoxins and microbes within its root-zone soil.

  • Correlation of Allelopathy of Rehmannia glutinosa Root Exudates and Their Phenolic Acids Contents
    Journal of Chinese medicinal materials, 2015
    Co-Authors: Bao Zhang, Xuanzhen Li, Fajie Feng, Li Gu, Junyi Zhang, Liuji Zhang, Zhongyi Zhang
    Abstract:

    OBJECTIVE: To study the allelopathic potential of Rehmannia glutinosa root exudates in different growth stages and dynamic change of phenolic acids contents, in order to reveal the correlation between phenolic acids and allelbpathy effect of Rehmannia glutinosa. METHODS: Root exudates of Rehmannia glutinosa in different growth stages were obtained by a new instrument which was used to collect the root exudates of xerophytes. After that, bioassay was applied to estimate allelopathy effect of the root exudates. HPLC was used to determine the contents of five phenolic acids (coumaric acid, 4-hydroxybenzoic acid, vanillic acid, syringic acid and ferulic acid) which were reported to relate to allelopathy effect. Correlation of bioassay data and HPLC data were also analyzed. RESULTS: The germination rate of radish after soaking by root exudates of different growth stages of Rehmannia glutinosa was 97. 89%, 92. 38%, 89. 52%, 85. 71%, 85. 71%, 84. 76% and 83. 81%, respectively, which indicated a decline trend. And significant differences were shown from previous enlargement stage compared with the contrast. The bud length after soaking by root exudates was 5. 68, 5. 76, 5. 91, 5. 65, 5. 41, 5. 28 and 5. 11 cm, separately, which increased slightly before decreasing gradually. Previous enlargement stage was also the initial period when significant differences were shown. Five phenolic acids were detected in root exudates by HPLC, while the change of their contents and the allelopathy effect of root exudates did not perform a similar trend. Correlation analysis indicated the five phenolic acids did not have significant relevance (r = - 0. 666 - 0. 590) with germination rate and bud length of radish except the negative correlation (r = -0. 833, P