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| 1 | Determination of 13 Trace Elements in Anshun Thorn Pear (Rosa roxburghii) and Golden Thorn Pear (Rosa sterilis S.D.Shi) by ICP-MS显示文摘[Objectives] This study was conducted to establish an analytical method for the establishment of 13 trace elements in Anshun thorn pear(Rosa roxburghii) and golden thorn pear(Rosa sterilis S. D. Shi). [Methods] Nitric acid was used as the digestion system for microwave digestion. Inductively coupled plasma mass spectrometry(ICP-MS) was used to determine the trace elements in thorn pear and golden thorn pear. [Results] Be, Ti, V, Cr, Mn, Co, Ni, As, Sr, Mo, Cd, Sb and Hg were determined by ICP-MS method in thorn pear and golden thorn pear. The correlation coefficients of the regression equations of the elements were higher than 0.996; the precision RSD was lower than 2.87%; and the recovery ranged from 94.3% to 109.8%. [Conclusions] The method has the advantages of high sensitivity, good accuracy and simultaneous detection of multiple elements, and provides a reference method and theoretical basis for determining trace elements in thorn pear and golden thorn pear and other fruits. | Wei CHEN Kaibin LI Qiuyue KONG Sibu MA Wen YANG | 2019 | Agricultural Biotechnology2019，8，2： | 1 |
| 2 | Protective Effect and Molecular Mechanism of Shui People's Classic Prescription Jipei Dilong Ointment on Osteoarthritis in Rats显示文摘[Objectives]To explore the protective effect and molecular mechanism of Shui People s Classic Prescription Jipei Dilong Ointment on knee osteoarthritis in rats.[Methods]72 SPF male SD rats were divided into control group,model group,Jipei Dilong Ointment high,medium and low dose groups,and positive drug Diclofenac group,with 12 rats in each group.Except the control group,all other groups were injected with 0.2 mL of 2%papain and 0.3%L-cysteine mixture into knee joint cavity to establish osteoarthritis model,while the control group was injected with the same amount of normal saline.The Lequesne MG score was used to determine the success of the model.After successful modeling,external administration was given for 4 weeks.The histopathological changes in articular cartilage and synovium were observed by HE staining;the levels of TNF-α,IL-1βand COX-2 in serum were detected by ELISA,and the relative expression of MMP-9 and TIMP-1 mRNA in cartilage was detected by qRT-PCR;the relative expression of MMP-9,TIMP-1,TLR4,MyD88 and NF-κB in rat cartilage was detected by Western-blot.[Results]Compared with the model group,Jipei Dilong Ointment could significantly reduce the Lequesne MG score and Mankin s score of arthritic rats(P<0.01);significantly improve the pathological changes in articular cartilage and synovium,reduce tissue edema,necrosis,inflammatory cell infiltration and fibrous tissue proliferation;reduce the expression of MMP-9 mRNA(P<0.01)in different degrees and increase the expression of TIMP-1 mRNA(P<0.01);reduce the relative expression of MMP-9,TLR4,MyD88 and NF-κB protein in different degrees(P<0.01),and significantly increase the relative expression of TIMP-1 protein in cartilage(P<0.01).[Conclusions]Jipei Dilong Ointment can improve the joint injury of osteoarthritis rats,and the mechanism may be related to the regulation of TLR4/MyD88/NF-κB signaling pathway and the ratio of MMP-9/TIMP-1. | Lailai LI Baoying HUA Shiyun YE Yihui CHAI Haotian WANG Jinghua RUAN Xiang PU Liyan ZHANG Sibu MA | 2023 | Medicinal Plant2023，14，5： | 0 |
| 3 | Effects of Astragalus membranaceus on Energy Metabolism and Expression of CNTF Protein in Skeletal Muscle of Exercise-induced Fatigue Rats显示文摘[Objectives]This study was conducted to investigate the effects of Astragalus membranaceus in different groups on energy metabolism and CNTF protein expression in skeletal muscle of exercise-induced fatigue rats.[Methods]Thirty-five clean male SD rats were randomly divided into a normal group,and low-,meddle-and high-dose groups of A.membranaceus aqueous solution,with 7 rats in each group.The low-dose,medium-dose and high-dose groups were given by gavage at 0.65,1.3 and 2.6 g/kg,respectively,while the normal group and the model group were given normal food and water.The weight of rats was observed.The contents of serum urea,lactate,muscle glycogen,liver glycogen and CNTF expression were detected.[Results]After modeling,compared with the normal group,the serum lactate and urea contents of rats in the model group significantly increased(P<0.01),while the muscle glycogen content(P<0.01)and liver glycogen content(P<0.05)of the skeletal muscle significantly decreased.Compared with the model group,the low-,meddle-and high-dose groups of A.membranaceus significantly reduced the levels of lactate and urea in serum(P<0.01),while the levels of muscle glycogen and liver glycogen in the skeletal muscle significantly increased(P<0.01,P<0.05).[Conclusions]This study provides a good research foundation for the treatment of exercise-induced fatigue using traditional Chinese herb A.membranaceus in modern clinical practice. | Yueqi ZHOU Xue ZHANG Zelin ZHAO Yuanxia SHEN Li YANG Song WANG Junying TIAN Sibu MA Shiyan HUANG | 2023 | Agricultural Biotechnology2023，12，6： | 0 |
| 4 | Therapeutic Effect and Mechanism of Jipei Dilong Ointment on Acute Soft Tissue Injury in Rats显示文摘[Objectives]This study was conducted to observe the therapeutic effect of Jipei Dilong Ointment on rats with acute soft tissue injury caused by heavy objects and to explore its action mechanism.[Methods]Thirty six rats were randomly divided into six groups(control group,model group,high-dose Jipei Dilong Ointment group(JP-H),medium-dose Jipei Dilong Ointment group(JP-M),low-dose Jipei Dilong Ointment group(JP-L)and diclofenac group).Except for the Control group,other groups were subjected to modeling of acute soft tissue injury by the weight impact method.All administration was performed once a day for nine consecutive days.The local appearance score and activity disorder score were determined after soft tissue injury in rats.HE staining was used to detect the pathological changes of injured soft tissues in rats.RT-PCR was used to detect the relative mRNA expressions of Bax,Bcl-2,MMP-9 and TIMP-1 in injured soft tissues of rats.Western Blot was used to detect the protein expressions of MMP-9,TIMP-1,TLR4,MyD88 and NF-κB p65 in injured soft tissues of rats.Results were statistically analyzed.[Results]Compared with the model group,Jipei Dilong Ointment could significantly improve the appearance symptoms such as swelling and ecchymosis in the injured area and the movement function of the affected limb(P<0.05).It could also improve the infiltration of inflammatory cells and widening of the intermuscular space caused by injury.Among them,the JP-H group and the diclofenac group had more significant curative effects.After 9 d of administration,each administration group could significantly up-regulate the ratio of Bcl-2/Bax mRNA expression level(P<0.05 or P<0.01),and the ratio of MMP-9/TIMP-1 mRNA expression level showed a downward trend(P>0.05).The expression level of NF-κB p65 protein in each administration group was significantly decreased(P<0.01).The protein expression levels of TLR4 and MyD88 and the ratio of MMP-9/TIMP-1 protein expression level in each administration group decreased to varying degrees.Among them,the JP-H group and diclofenac group significantly decreased(P<0.05).[Conclusions]Jipei Dilong Ointment has the functions of relieving pain,swelling and inflammation.It could improve the local appearance,functional activity and tissue morphology of affected limbs in rats,and has a therapeutic effect on acute soft tissue injury in rats.Its mechanism of action might be related to the inhibition of TLR4/MyD88/NF-κB p65 signaling pathway and the regulation of Bcl-2/Bax and MMP-9/TIMP-1 balance. | Yihui CHAI Haotian WANG Shiyun YE Lailai LI Baoying HUA Jinghua RUAN Xiang PU Liyan ZHANG Sibu MA | 2023 | Agricultural Biotechnology2023，12，5： | 0 |
| 5 | Study on Mechanism of Dendrobium officinale Kimura et Migo in Preventing and Treating Exercise-induced Muscle Damage(EIMD)in Rats显示文摘[Objectives]This study was conducted to observe the mechanism of Dendrobium officinale Kimura et Migo on gastrocnemius muscle in rats with exercise-induced muscle damage(EIMD).[Methods]The micro-injury model of skeletal muscle was established by treadmill training.Forty two SD rats were randomly divided into a control group,1,12 and 24 h exercise groups,D.officinale 2 ml+1 h exercise group,D.officinale 2 ml+12 h exercise group,and D.officinale 2 ml+24 h exercise group,with 6 rats in each group.Various D.officinale groups were given the drug once in the morning and once in the evening at a dose of 2 ml/time,a week in advance.Except for the quiet group,the samples were collected from the 1,12 and 24 h exercise groups after anesthesia following 1,12 and 24 h of exercise for the last time,respectively,and the D.officinale 2 ml+1 h exercise group,D.officinale 2 ml+12 h exercise group and D.officinale 2 ml+24 h exercise group were also sampled after anesthesia following 1,12 and 24 h of exercise for the last time,respectively.The contents of ATP,CK-MM and CK in rat serum were determined by enzyme-linked immunosorbent assay(ELISA).The histopathological changes of gastrocnemius muscle were observed by HE staining.PCR and Western-blot detection were carried out to analyze the effects of D.officinale on IGF-1 mRNA and protein expression in gastrocnemius muscle.[Results]Compared with the quiet group,the ATP contents in the serum of rats in the 1,12 and 24 h exercise groups significantly decreased(P<0.01),while the CK and CK-MM contents significantly increased(P<0.01).The expression of IGF-1 mRNA and protein in the gastrocnemius muscle tissue significantly increased(P<0.01).Compared with the 1 h exercise group,the ATP content and IGF-1 protein expression in the gastrocnemius muscle tissue of the D.officinale liquid+1 h exercise group significantly increased(P<0.05),while the CK and CK-MM contents significantly decreased(P<0.01).Compared with the 12 h exercise group,the D.officinale liquid+12 h exercise group showed a significant increase in ATP content(P<0.01),significant increases in IGF-1 mRNA and protein expression in the gastrocnemius muscle tissue(P<0.01),and significant decreases in CK and CK-MM contents(P<0.01).Compared with the 24 h exercise group,the ATP content and IGF-1 mRNA and protein expression in the gastrocnemius muscle tissue of the D.officinale liquid+24 h exercise group significantly increased(P<0.01),while the CK and CK-MM contents significantly decreased(P<0.01).From the pathological tissue morphology of the gastrocnemius muscle in rats with EIMD treated with D.officinale,it could be concluded that the gastrocnemius muscle of each exercise group was significantly damaged,and the damage was significantly alleviated after administration of D.officinale liquid.[Conclusions]The effects and mechanism of D.officinale on prevention and treatment of EIMD in rats might be related to the promotion of IGF-1 mRNA and protein expression in injured tissues by reducing ATP energy consumption,CK-MM and CK activity. | Peihong CAI Jiangyan XIONG Zelin ZHAO Sibu MA Yuanyu LONG Danguo WEN Litao XIA Qinmei ZHU | 2023 | Agricultural Biotechnology2023，12，6： | 0 |
| 6 | Study on the Mechanism of Pseudostellariae Radix in Regulating Angiogenesis Based on Network Pharmacology and a Dual-screening System显示文摘[Objectives]This study was conducted to clarify the action mechanism of Pseudostellariae Radix in regulating angiogenesis by using network pharmacology and a dual-screening system,and to provide a basis for its clinical treatment of cardiovascular diseases.[Methods]The TCMSP database was used for preliminary screening to obtain the active compounds of Pseudostellariae Radix and the protein targets of its action.GeneCards and OMIM databases were used to search for targets related to angiogenesis.Cytoscape 3.9.1 was used to construct a drug-target network and protein interaction network of Pseudostellariae Radix in angiogenesis.The GO enrichment analysis and KEGG pathway analysis of the targets of Pseudostellariae Radix in angiogenesis were carried out on Metascape platform.The effects of the screened active compounds were verified using a dual-screening system.[Results]Six active components of Pseudostellariae Radix,luteolin,acetin,beta-sitosterol,linarin,schottenol and 1-monolinolein,were screened by TCMSP database;and the six active components were predicted with 78 common target proteins related to angiogenesis,of which 19 were core targets.Pseudostellariae Radix mainly intervened in angiogenesis through domain specific binding,ubiquitin-like protein ligase binding,kinase binding and other molecular functions to regulate biological processes such as membrane microdomain,plasma membrane raft and caveola.The results of KEGG enrichment indicated that pathways in cancer,lipid and atherosclerosis,hepatitis B,apoptosis,toxoplasmosis and other key pathways might be the mechanism for the intervention of angiogenesis.The results of the dual-screening system showed that luteolin,acacetin,beta-sitosterol and linarin protected HUVECs and promoted zebrafish angiogenesis.[Conclusions]This study preliminarily demonstrated that luteolin,acacetin,beta-sitosterol and linarin could intervene in angiogenesis through multiple targets and multiple pathways,providing ideas and a scientific basis for the treatment of cardiovascular diseases. | Na LI Yihui CHAI Yuqi YANG Xiang PU Guo FENG Sibu MA Lailai LI | 2023 | Agricultural Biotechnology2023，12，5： | 0 |
| 7 | Acute Oral Toxicity Studies of a Chinese Herbal Preparation Shenrong Bunao Capsule显示文摘[Objectives]This study was conducted to evaluate the acute oral toxicity of Shenrong Bunao Capsule,and to provide a theoretical basis for drug development and clinical trials. [Methods]Kunming mice were randomly assigned into two groups: an experimental group and a control group. In experimental group,Shenrong Bunao Capsule solution at maximum concentration of 45% was administered orally by gavage once at a dose of 30 ml/kg body weight( BW),while an equal volume of saline solution was given in the control group. Then,the appearance,behavior,mental state,diet,feces,urine,coat,skin color,respiration,nose,eyes and oral secretions and other daily activities of the mice were observed for 14 d after drug administration. At the end of the experiment,the mice were dissected,and their main organs were examined histopathologically. [Results] The appearance,behavior,respiration,body posture,response to stimuli and weight gain of the mice in control group were all normal. All the mice given 13. 500 g/kg BW Shenrong Bunao Capsule were alive 14 d after drug administration,and their appearance,behavior,respiration,body posture,response to stimuli and weight gains did not show any abnormality. In addition,the body weights of male and female mice had no obvious difference between the experimental group and the control group at the binging,7 and 14 d after drug administration( P < 0. 05).[Conclusions]A maximum dose 13. 500 g/kg BW Shenrong Bunao Capsule,which was equivalent to 141 times of the recommended dosage for adult men was given to the mice,and did not result in any apparent toxic effects,suggesting that the Chines herbal preparation Shenrong Bunao Capsule has very little acute toxicity,and the commonly recommended dosage in clinical trials is safe. | Ping LI Xiangling QU Sibu MA Ming LIU | 2017 | Agricultural Biotechnology2017，6，3： | 0 |
| 8 | Determination of 2 Flavonoids in Psidium guajava Linn. from Different Habitats in Guizhou显示文摘[Objective]This study was conducted to determinate the contents of hyperoside and isoquercitrin in the leaves of Psidium guajava Linn. from different areas of Guizhou Province,which would provide data support for production and quality control of P. guajava leaf material. [Method]The contents of hyperoside and isoquercitrin were measured by HPLC under following conditions: Agilent XDB-C_(18),4. 6 mm ×250 mm,5 μm,CH_3CN-0. 1% HCOOH( 13∶ 87) as mobile phase,column temperature at 25 ℃,detection wavelength of 257 nm and flow rate at 1. 0 ml/min. [Result]The results showed that leaves of P. guajava from different producing areas contained variable hyperoside and isoquercitrin contents in the same period,and the differences in quality were obvious between different areas. [Conclusion] The method for detecting the contents of hyperoside and isoquercitrin in P. guajava leaf materials is simple with reliable accurate results. The P. guajava leaf material produced in Gouting Township,Luodian County has better quality. | Kaibin LI Sibu MA Yonghua HE Zonghua ZHENG Wen YANG Chen YAN | 2017 | Agricultural Biotechnology2017，6，3： | 0 |
| 9 | Validation of Microbial Limit Test Methods of Compound Gangbangui Capsule显示文摘[Objectives] This study was conducted to establish a method for microbial limit test of Compound Gangbangui Capsule. [Methods] According to the Chinese Pharmacopoei 2015 edition of the four general rules,the microbiological limits of non-sterile products were verified. [Results]Compound Gangbangui Capsule has a strong inhibitory effect on S. aureus,and the antimicrobial activity was significantly eliminated after increasing the diluent( 1∶ 20); and the recoveries were in the range of 0. 5-2. 0 when the total quantities of aerobic microbes were determined by dilution method( 1∶ 20). When the total quantities of mould and yeast were determined by conventional method( 1∶ 20),the recoveries were from 0. 5 to 2. 0,and Escherichia coli can be detected in experimental groups by the test solution dilution method. [Conclusions]With the plate method,the total quantities of aerobic bacteria and the quantities of mould and yeast were examined by increasing diluent and conventional method,respectively,and control bacteria,E. coli was examined by conventional method. This method has been proved effective for microbial limit test of Compound Gangbangui Capsule,and can effectively control the quality of the preparation. The method is accurate and reliable. | Xiangling QU Xianmei XU Sibu MA Renhui YANG | 2018 | Agricultural Biotechnology2018，7，2： | 0 |
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