1.Value of lipoprotein associated phospholipase A2 detection in risk judgment of coronary heart disease
Liangeng LIU ; Hailing LU ; Xingzhong ZHENG
International Journal of Laboratory Medicine 2016;37(17):2364-2365,2368
Objective To investigate the correlation between serum lipoprotein associated phospholipase A2 (Lp‐PLA2) level and severity of coronary artery stenosis in the patients with coronary heart disease(CHD) and its clinical significance .Methods A total of 243 cases of CHD and suspected CHD were divided into the high‐risk group(at least 1 coronary artery vessel stenosis >50% ,n=102) and low‐risk group(single coronary artery vessel stenosis≤50% ,n=141) according to the coronary angiography re‐sults .The clinical data were collected and Lp‐PLA2 level was detected by ELISA .Results The serum Lp‐PLA2 level in the high‐risk group was significantly higher than that in the low‐risk group ,and the difference was statistically significant(P<0 .01) ,the sensitivity of Lp‐PLA2 for judging the high‐risk patients with CHD was 86 .3% ,the specificity was 96 .6% ,and the overall diagno‐sis accuracy was 98 .0% .Conclusion Lp‐PLA2 can better assess the risk of CHD patients and the serum Lp‐PLA2 level can reflect the severity of coronary artery lesion .
2.Application value of Hcy and IMA in the diagnosis of AMI
Liangeng LIU ; Hailing LU ; Xingzhong ZHENG ; Jian WU
International Journal of Laboratory Medicine 2016;37(18):2517-2519
Objective To investigate the significance of combined detection of homocysteine(Hcy) and ischemia modified albu‐min(IMA) in serum to the diagnosis of acute myocardial infarction(AMI) .Methods The serum levels of Hcy and IMA were detec‐ted in 80 patients with acute myocardial infarction ,60 patients with angina pectoris and 40 healthy subjects(control group) ,and the results were statistically analyzed .Results The concentration of Hcy and IMA in AMI patients was significantly higher than which in the control group ,the difference is statistically significant(P<0 .05);the sensitivity of the Hcy+ IMA combined diagnosis was higher than that of the single project .Hcy and IMA was positively related(P<0 .05) .Conclusion The combined detection of Hcy and IMA levels in patients with acute myocardial infarction has a good effect on early diagnosis and monitoring ,and it is worth popularizing .
3.Clinical Study on Qilin Pills Combined with Three-Spot Caressing in Treatment of Acquired Non-consolidated Kidney Qi Premature Ejaculation
Yong ZHU ; Xingzhong ZHENG ; Jian HUANG ; Yong SHI ; Zhengjian LIU ; Qingqi ZENG
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(8):32-35
Objective To observe clinical efficacy of Qilin Pills combined with Three-Spot Caressing in the treatment of acquired non-consolidated kidney qi premature ejaculation (PE). Methods Totally 129 acquired non-consolidated kidney qi PE patients were randomly divided into TCM group, Fangzhognshu group and combination group. TCM group was given Qilin Pills, 6 g each time, three times a day, orally. Fangzhognshu group was guided to conduct Three-spot Caressing during sexual intercourse, no less than twice a week. Combination group was given Qilin Pills and Three-spot Caressing with the same method as Fangzhognshu group. The treatment course for each group lasted for 8 weeks. Before and after treatment of 4 weeks, 8 weeks and 4 weeks after with drawal, the intravaginal ejaculatory latency time (IELT), Chinese Index of Sexual Function for Premature Ejaculation-5 (PECI-5) scores and TCM syndrome scores (TCMS) were compared. Results Compared with before treatment, IELT increased in three groups at different time points after treatment (P<0.05). In the combination group, IELT was superior to the other two groups (except for TCM group after 4-week treatment), with statistical significance (P<0.05). Compared with before treatment, PECI-5 scores improved in three groups (except for Q6 and Q7 in Fangzhongshu group after 4-week treatment) at different time point after treatment (P<0.05). The improvement of Q5, Q6 and Q7 scores in PECI-5 of combination group was significantly better than that in the other two groups at 8-week treatment and 4-week after treatment (P<0.05). Compared with before treatment, TCMS in TCM group and combination group were improved significantly (P<0.05), PE and loss of libido score improved significantly in Fangzhongshu group (P<0.05);mental malaise and move spontaneous perspiration were significantly improved at 8-week treatment and 4 weeks after treatment (P<0.05). The improvement in TCMS was significantly better in combination group than that in the other two groups at 8-week treatment and 4 weeks after treatment (P<0.05). Conclusion Qilin Pills combined with Three-Spot Caressing has definite and long-term efficay for the treatment of acquired non-consolidated kidney qi PE.
4.How carnivorous fungi use three-celled constricting rings to trap nematodes.
Keke LIU ; Jianqing TIAN ; Meichun XIANG ; Xingzhong LIU
Protein & Cell 2012;3(5):325-328
Predacious fungi form specialized hyphae structures to trap nematodes and other microscopic animals. Among the six kinds of trapping devices, the constricting ring is the only one that actively captures nematodes. When a nematode enters the aperture of the ring, which is formed by three cells, the cells rapidly triple their volume, close the aperture and hold the nematode in place. Hyphae then penetrate and consume the nematode. This paper reviews the data and hypotheses on conserving the evolution of constricting rings and their cytological and molecular mechanisms.
Adaptation, Physiological
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Animals
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Fungi
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cytology
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growth & development
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metabolism
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Hyphae
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cytology
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growth & development
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metabolism
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Morphogenesis
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Nematoda
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physiology
5.Comparison of mental behavior and cognition between dementia with lewy body and Parkinson′s disease de-mentia
Xingzhong GU ; Zhihong SHI ; Hong GUO ; Shuai LIU ; Yong JI
The Journal of Practical Medicine 2017;33(23):3876-3879
Objective To investigate the characteristics of cognitive function and mental behavior symp-toms in patients with Parkinson′s disease dementia(PDD)and dementia with lewy body(DLB).Methods Forty-eight patients with DLB and 38 with PDD were collected in Tianjin Huanhu Hospital and Tianjin Jianhua Hospital. All patients were assessed on cognitive function and mental behavior symptoms using Montreal Cognitive Assess-ment Scale,Mini-Mental State Examination,Hamilton Depression Scale,Hamilton Anxiety Scale and The Neuro-psychiatric Inventory Questionnaire.The Unified Parkinson Disease Rating Scale-Part 3(UPDRSⅢ)and modified Hoehn Yahr staging were used to assess the severity of motor symptoms in patients. Results Scores of UPDRSⅢ,posture and gait disorder were higher in DLB group than those in PDD group but the score of tremor was lower in DLB group than that in PDD group. The proportions of non tremor onset and bilateral onset were also lower in DLB group than those in PDD group,and the differences were statistically significant(P<0.05).Cognitive func-tion impairment was more serious in DLB group than that in PDD group in all cognitive fields including execution, attention,visual space,orientation and the difference was statistically significant(P < 0.05). Hallucinations (81.3%)and irritability/emotional instability(62.5%)were more common in DLB group but apathy(76.9%),de-pression(73.7%)and anxiety(73.7%)were more common in PDD group. Conclusions Cognitive impairment is more progressive in DLB patients than that in PDD patients.Hallucinations and irritability/emotional instability are more common in DLB group but apathy,depression and anxiety are more common in PDD group.
6.Expression and crystallographic studies of a fungal immunomodulatory protein LZ-8 from a medicinal fungus Ganoderma lucidum.
Min AN ; George Fu GAO ; Jianxun QI ; Feng LI ; Xingzhong LIU
Chinese Journal of Biotechnology 2010;26(11):1563-1568
LZ-8 protein, isolated from a well known Chinese traditional medicinal fungus Ganoderma lucidum, is the first member of fungal immunomodulatory protein, members of which have been isolated from a variety of medicinal and edible mushrooms in the last two decades. The protein plays a multifunctional and important role in modulating immune system. In this report, in order to get LZ-8 protein crystals, the LZ-8 gene was expressed and purified by affinity chromatography, gel filtration chromatography and anion exchange chromatography subsequently. The protein was then crystallized using the hanging-drop vapour-diffusion method. The LZ-8 crystals were obtained and the phase information was calculated by X-ray diffraction. The resolution of LZ-8 crystals is 3.2A. This study will provide an insight into the structure of fungal immunomodulatory proteins.
Animals
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Crystallography
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Fungal Proteins
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biosynthesis
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genetics
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immunology
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Ganoderma
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genetics
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metabolism
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Genetic Vectors
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genetics
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Immunologic Factors
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biosynthesis
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genetics
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Mice
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Recombinant Proteins
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biosynthesis
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genetics
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immunology
7.Study on the correlation between estrogen level and tenosynovitis in postmenopausal women
Zengrong WANG ; Xian WANG ; Jianqiang PENG ; Ruiyun CHEN ; Aijun HUANG ; Jiang ZHANG ; Hanxiong ZHENG ; Zhengkang JIANG ; Xuedong LU ; Feng LIU ; Xingzhong HUANG ; Xianglun CHEN
Clinical Medicine of China 2009;25(11):1132-1134
Objective To investigate the relationship between estrogen levels and tenosynovitis in postm-enopausal women. Methods 74 cases of postmenopausal women,including 32 cases of tenesynovitis (group A),42 cases healthy postrnenopausal women for the control group (group B) were observed. 42 cases of normal menstruation women were taken as control group (group C). Results The estrogen level was (89.7066±126.7458) pmol/L in group A,(45.6768±30.6342) pmol/L in group B,and (626.7384±361.5348)pmol/L in group C,There is statistical difference between group A and group C (P<0.05). Conclusions Tenosynovitis incidence in postmeno-pausal women has no significant relationship with the level of estrogen change.
8.Advances in microbial degradation of plastics.
Tongyao LIU ; Yi XIN ; Xingzhong LIU ; Bing WU ; Meichun XIANG
Chinese Journal of Biotechnology 2021;37(8):2688-2702
Plastics are widely used in daily life. Due to poor management and disposal, about 80% of plastic wastes were buried in landfills and eventually became land and ocean waste, causing serious environmental pollution. Recycling plastics is a desirable approach, but not applicable for most of the plastic waste. Microbial degradation offers an environmentally friendly way to degrade the plastic wastes, and this review summarizes the potential microbes, enzymes, and the underpinning mechanisms for degrading six most commonly used plastics including polyethylene terephthalate, polyethylene, polyvinyl chloride, polypropylene, polystyrene and polyurethane. The challenges and future perspectives on microbial degradation of plastics were proposed.
Biodegradation, Environmental
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Plastics
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Polyurethanes
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Recycling
9.A set of interesting sequoiatones stereoisomers from a wetland soil-derived fungus.
Tianyu SUN ; Jian ZOU ; Guodong CHEN ; Dan HU ; Bin WU ; Xingzhong LIU ; Xinsheng YAO ; Hao GAO
Acta Pharmaceutica Sinica B 2017;7(2):167-172
Four interesting sequoiatones stereoisomers (-) were isolated from a wetland soil-derived fungusby chiral HPLC. On the basis of comprehensive NMR and mass analyses, their planar structures were elucidated as the same as that of sequoiatone B. Among them,and(orand) were a pair of enantiomers, andand(orand) were a pair of stereoisomers with epimerization at C-12, which indicated that sequoiatione-type metabolites exist as enantiomers rather than as optically pure compounds in some strains. With the quantum chemical ECD calculations, the absolute configurations of C-8 in-were determined, which is the first report to establish the absolute configuration of C-8 in sequoiatones. However, the absolute configurations of C-12 in sequoiatones are still unsolved.
10.Aureane-type sesquiterpene tetraketides as a novel class of immunomodulators with interleukin-17A inhibitory activity.
Xin TANG ; Chuanxi WANG ; Lei WANG ; Feifei REN ; Runqiao KUANG ; Zhenhua LI ; Xue HAN ; Yiming CHEN ; Guodong CHEN ; Xiuqing WU ; Jie LIU ; Hengwen YANG ; Xingzhong LIU ; Chen WANG ; Hao GAO ; Zhinan YIN
Acta Pharmaceutica Sinica B 2023;13(9):3930-3944
Interleukin (IL)-17A, a pro-inflammatory cytokine, is a fundamental function in the onset and advancement of multiple immune diseases. To uncover the primary compounds with IL-17A inhibitory activity, a large-scale screening of the library of traditional Chinese medicine constituents and microbial secondary metabolites was conducted using splenic cells from IL-17A-GFP reporter mice cultured under Th17-priming conditions. Our results indicated that some aureane-type sesquiterpene tetraketides isolated from a wetland mud-derived fungus, Myrothecium gramineum, showed remarkable IL-17A inhibitory activity. Nine new aureane-type sesquiterpene tetraketides, myrogramins A-I ( 1, 4- 11), and two known ones ( 2 and 3) were isolated and identified from the strain. Compounds 1, 3, 4, 10, and 11 exhibited significant IL-17A inhibitory activity. Among them, compound 3, with a high fermentation yield dose-dependently inhibited the generation of IL-17A and suppressed glycolysis in splenic cells under Th17-priming conditions. Strikingly, compound 3 suppressed immunopathology in both IL-17A-mediated animal models of experimental autoimmune encephalomyelitis and pulmonary hypertension. Our results revealed that aureane-type sesquiterpene tetraketides are a novel class of immunomodulators with IL-17A inhibitory activity, and hold great promise applications in treating IL-17A-mediated immune diseases.