The damage caused by rice damping-off diseasecould be controlled efficiently by planting vig-orous seedlings. By adjusting the environ-ment, immunization of rice nursery (IRN)could raise seedlings with well developed ...The damage caused by rice damping-off diseasecould be controlled efficiently by planting vig-orous seedlings. By adjusting the environ-ment, immunization of rice nursery (IRN)could raise seedlings with well developed rootsand high physiological activity. These展开更多
This study was conducted to investigate the changes of polysaccharides content in Dendrobii Officinalis Caulis and its pharmacological action. The results showed that different growth years, different periods, differe...This study was conducted to investigate the changes of polysaccharides content in Dendrobii Officinalis Caulis and its pharmacological action. The results showed that different growth years, different periods, different habitats and different external factors had influences on the change of polysaccharide content in Den- drobii Officinalis Caulis. Dendrobii Officinalis Caulis has certain effects of enhancing immunity, resisting fatigue and oxidation, promoting digestion and salivation secretion, reducing blood sugar and blood pressure, resisting tumor and liver injury, and relaxing bowels. Dendrobii Officinalis Caulis polysaccharides are the main effective components in Dendrobii Officinalis Caulis. The control of Dendrobii Officinalis Caulis polysaccharide content is of great significance to the assurance of the yield and quality of Dendrobii Officinalis Caulis material.展开更多
Yb-doped silica glasses containing low, medium, and high content of OH arc prepared through nanoporous glass sintering technology. High-OH sample exhibits better X-ray irradiation resistivity than low- and medium-OH s...Yb-doped silica glasses containing low, medium, and high content of OH arc prepared through nanoporous glass sintering technology. High-OH sample exhibits better X-ray irradiation resistivity than low- and medium-OH samples. After irradiation, OH content of low- and medium-OH samples increases 37.5% and 11%, respectively; in contrast, OH content of high-OH sample decreases dramatically. The different OH content changes among the samples are discussed regarding the proposed inter-conversion reactions involving Si-H and Si-OH during the irradiation.展开更多
Lignin is a polymer of phenylpropanoid compounds formed through a complex biosynthesis route, represented by a metabolic grid for which most of the genes involved have been sequenced in several plants, mainly in the m...Lignin is a polymer of phenylpropanoid compounds formed through a complex biosynthesis route, represented by a metabolic grid for which most of the genes involved have been sequenced in several plants, mainly in the model-plants Arabidopsis thaliana and Populus. Plants are exposed to different stresses, which may change lignin content and composition. In many cases, particularly for plant-microbe interactions, this has been suggested as defence responses of plants to the stress. Thus, understanding how a stressor modulates expression of the genes related with lignin biosynthesis may allow us to develop study-models to increase our knowledge on the metabolic control of lignin deposition in the cell wall. This review focuses on recent literature reporting on the main types of abiotic and biotic stresses that alter the biosynthesis of lignin in plants.展开更多
Copper contents(CU) in bodies and serum cerulopasmin(Cp) were assayed in patients with liver cirrhosis(LC) and hepatocarcinoma(HCC) with atomic absorption and other methods.
Cellular morphology and nuclear DNA content were measured with point-counting technique and flow cytometry (FCM) respectively in normal nasopharyngeal epithelium (NE), tissue adjacent to carcinoma (ATC) and nasopharyn...Cellular morphology and nuclear DNA content were measured with point-counting technique and flow cytometry (FCM) respectively in normal nasopharyngeal epithelium (NE), tissue adjacent to carcinoma (ATC) and nasopharyngeal carcinoma (NPC). The results showed that all 20 patients with NE show ed diploid, whereas 38 (38%) of 101 patients with NPC, 7 (58%) of 12 patients with recurrent NPC, 6 (30%) of 20 patients with ATC and 2 (33%) of 6 patients with NE positive to EBVCA-IgA test showed nondiploid. A total of 19 morphometric parameters of the cell were measured and calculated. The results showed that with malignant transformation of NE, most of the cellular morphometric parameters gradually increased in numerical values while no marked difference was shown between normal NE and simple hyperplasia or metaplasia in terms of cytomorphometric characteristics. Most of the parameters in dysplasia changed significantly as compared with those normal NE, simple hyperplasia or metaplasia and NPC groups. Cytomorphome展开更多
Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD con...Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD control and prevention.Methods In September2012,four historical KBD areas were selected,including Yongshou,Yuyang,Linyou and Nanzheng,four展开更多
文摘The damage caused by rice damping-off diseasecould be controlled efficiently by planting vig-orous seedlings. By adjusting the environ-ment, immunization of rice nursery (IRN)could raise seedlings with well developed rootsand high physiological activity. These
基金Supported by National Natural Science Foundation of China(81460587)Zhuang Yao Medicine Collaborative InnovationC enter Project(GJKY[2013]20)+2 种基金Guangxi Key Laboratory of Zhuang Yao Medicine(GKJZ[2014]32)Guangxi Key Discipline:Zhuang Pharmacy(GJKY[2013]16)Chinese Traditional Medicine Innovation Theory and Drug EfficacyS tudy of Bagui Scholars
文摘This study was conducted to investigate the changes of polysaccharides content in Dendrobii Officinalis Caulis and its pharmacological action. The results showed that different growth years, different periods, different habitats and different external factors had influences on the change of polysaccharide content in Den- drobii Officinalis Caulis. Dendrobii Officinalis Caulis has certain effects of enhancing immunity, resisting fatigue and oxidation, promoting digestion and salivation secretion, reducing blood sugar and blood pressure, resisting tumor and liver injury, and relaxing bowels. Dendrobii Officinalis Caulis polysaccharides are the main effective components in Dendrobii Officinalis Caulis. The control of Dendrobii Officinalis Caulis polysaccharide content is of great significance to the assurance of the yield and quality of Dendrobii Officinalis Caulis material.
基金supported by the National Natural Science Foundation of China under Grant Nos.51272262 and61405215
文摘Yb-doped silica glasses containing low, medium, and high content of OH arc prepared through nanoporous glass sintering technology. High-OH sample exhibits better X-ray irradiation resistivity than low- and medium-OH samples. After irradiation, OH content of low- and medium-OH samples increases 37.5% and 11%, respectively; in contrast, OH content of high-OH sample decreases dramatically. The different OH content changes among the samples are discussed regarding the proposed inter-conversion reactions involving Si-H and Si-OH during the irradiation.
文摘Lignin is a polymer of phenylpropanoid compounds formed through a complex biosynthesis route, represented by a metabolic grid for which most of the genes involved have been sequenced in several plants, mainly in the model-plants Arabidopsis thaliana and Populus. Plants are exposed to different stresses, which may change lignin content and composition. In many cases, particularly for plant-microbe interactions, this has been suggested as defence responses of plants to the stress. Thus, understanding how a stressor modulates expression of the genes related with lignin biosynthesis may allow us to develop study-models to increase our knowledge on the metabolic control of lignin deposition in the cell wall. This review focuses on recent literature reporting on the main types of abiotic and biotic stresses that alter the biosynthesis of lignin in plants.
文摘Copper contents(CU) in bodies and serum cerulopasmin(Cp) were assayed in patients with liver cirrhosis(LC) and hepatocarcinoma(HCC) with atomic absorption and other methods.
文摘Cellular morphology and nuclear DNA content were measured with point-counting technique and flow cytometry (FCM) respectively in normal nasopharyngeal epithelium (NE), tissue adjacent to carcinoma (ATC) and nasopharyngeal carcinoma (NPC). The results showed that all 20 patients with NE show ed diploid, whereas 38 (38%) of 101 patients with NPC, 7 (58%) of 12 patients with recurrent NPC, 6 (30%) of 20 patients with ATC and 2 (33%) of 6 patients with NE positive to EBVCA-IgA test showed nondiploid. A total of 19 morphometric parameters of the cell were measured and calculated. The results showed that with malignant transformation of NE, most of the cellular morphometric parameters gradually increased in numerical values while no marked difference was shown between normal NE and simple hyperplasia or metaplasia in terms of cytomorphometric characteristics. Most of the parameters in dysplasia changed significantly as compared with those normal NE, simple hyperplasia or metaplasia and NPC groups. Cytomorphome
文摘Objective To compare selenium content in hair samples of people in Kaschin-Beck disease(KBD)areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD control and prevention.Methods In September2012,four historical KBD areas were selected,including Yongshou,Yuyang,Linyou and Nanzheng,four
