1.Alkaloid and sesquiterpenes from the root tuber of Curcuma longa
Liyao WANG ; Mian ZHANG ; Chaofeng ZHANG ; Zhengtao WANG
Acta Pharmaceutica Sinica 2008;43(7):724-727
One new quinoline alkaloid and seven known bisabolane sesquiterpenes: 2-(2'-methyl-1'-propenyl)-4, 6-dimethyl-7-hydroxyquinoline(1), 2, 5-dihydroxybisabola-3, 10-diene(2), 4, 5-dihydroxybisabola-2, 10-diene(3), turmeronol A(4), bisacurone(5), bisacurone A(6), bisacurone B(7), bisacurone C(8), as well as dehydrozingerone(9) and zingerone(10) were isolated from the root tuber of Curcuma longa. Their structures were identified by spectral evidence. Compound 1 is a new compound, compounds 6-8 were isolated from this plant for the first time and compounds 9-10 from Curcuma for the first time.
2.Taurine protects neuronal cells by suppressing Caspase 9 activation
Yang LIU ; Liyao WANG ; Qinghua ZHANG ; Hechun XIA ; Tao SUN
Journal of Medical Postgraduates 2014;(8):793-796
Objective Neurological diseases are closely associated with the apoptosis of neuronal cells .This article aims to study the inhibitory effect of taurine on the apoptosis of hippocampal neurons by activating Caspase 9 as well as its protective effect on the nervous system and its mechanisms . Methods Mouse hippocampal neuronal cells were randomly divided into four groups:control, injury and apoptosis, low-dose taurine protection, and high-dose taurine protection.The proliferation of the neuronalcells was observed, their apoptosis examined by MTT colorimetric assay, and the expression of Caspase 9 in different groups detected by immunofluorescence and Western blot. Results The injury and apoptosis group showed a poor proliferation of the hippocampal neuronal cells and decreased cell viability (A=0.102 ±0.025), significantly lower than the control group (relative A=0.643 ± 0.013), the low-dose taurine group (relative A=0.504 ±0.072), and the high-dose taurine group (relative A=0.452 ±0.029) ( all P<0 .05 ) .Immunofluorescence assay revealed significantly increased Caspase 9 activation in the injury and apoptosis group (A=61386.8 ±10083.6) compared with the control (A=4502.2 ±2518.1), the low-dose taurine (A=20077.4 ±4187.5), and the high-dose taurine group (A=13976.2 ±7044.1) (all P<0.05).Western blot showed a remarkably higher expression of Caspase 9 in in the injury and apoptosis group (A=1.23) than in the control (relative A=0.17), the low-dose taurine (A=0.21), and the high-dose taurine group (A=0.19) (all P<0.05). Conclusion Taurine can protect neuronal cells by inhibi-ting Caspase 9 activation.
3.Effect of coenzyme complex on cardiac and renal functions of patients with type 2 cardiorenal syndrome
Jia WANG ; Ruofeng CHEN ; Jianhao GUO ; Liyao ZHOU ; Zhujun TAN ; Zhiliang LI
The Journal of Practical Medicine 2015;31(16):2648-2650
Objective To investigate the effect of coenzyme complex on the cardiac and renal functions of patients with type 2 cardiorenal syndrome. Methods Sixty-two patients with type 2 cardiorenal syndrome were enrolled in from June 2013 to December 2014 in Zhujiang Hospital , Southern Medical University. These patients divided were into routine group (n = 31) and coenzyme complex (n = 31). The therapy scheme of coenzyme complex group was on the basis of routine group with coenzyme complex intravenous drip , 400 U/day for 2 weeks. The cardiac function was determined by New York Heart Function Assessment, and the cardiac ultrasound, the levels of BNP. The renal function was determined by serum creatinine and urine volume. Results Compared with routine group, the rates of NYHA Ⅲ and Ⅳ were reduced, the LVEF levels were increased and the levels of BNP were increased (P < 0.05). The serum creatinine was decreased and urine volume were increased in the coenzyme complex group (P<0.05). Conclusion Coenzyme complex could improve the cardiac and renal functions of the patients with type 2 cardiorenal syndrome.
4.A study on the current situation and correlation between the Successful Aging of the elderly in community and the Constitution Types of Traditional Chinese Medicine
Liyao ZHANG ; Zhaoxiu WANG ; Hong JI
Chinese Journal of Practical Nursing 2018;34(32):2543-2547
Objective To understand the present situation of Successful Aging (SA) and its Constitution Types of Traditional Chinese Medicine (CTTCM) in the elderly,exploring on the correlation between SA and CTTCM. Methods Totally 198 old adults from community service center were investigated with Chinese-version Successful aging Inventory (C-SAI) and TCM physique type scale. Results The mean score of SA was(56.90±10.01), the physical types of the elderly are mostly biased. The results of one-way variance analysis of Constitution Types of Traditional Chinese Medicine showed that there were differences in the SAI scores of old people with different physique types (F=21.180, P<0.05). Multiple linear regression analysis showed SA scores were statistically significant in terms of educational level, living styles, dietary habits, sleep quality and participation in social activities (t=-4.969-4.257, P<0.05). Conclusions The SA in our study was at a moderate level, the constitution types of the elderly are mainly biased. The Constitution Types of Traditional Chinese Medicine could influence the old adults′ SA. By providing individualized Chinese medicine intervention for the elderly to correct biased physique, and improve the level of successful aging in future.
5.Effect of free fatty acid on NALP3 inflammasome signaling pathway in THP-1 macrophages.
Liyao FU ; Fuxi ZHOU ; Xuehong WANG ; Fanggen LU
Journal of Central South University(Medical Sciences) 2014;39(8):811-817
OBJECTIVE:
To investigate the potential effect of NALP3 inflammasome on the occurrence and development of nonalcoholic steatohepatitis (NASH).
METHODS:
THP-1 macrophages were cultured for 24 h by palmitic acid at various concentrations. The THP-1 macrophages were pretreated with N-acetyl-cysteine at different doses for 24 h before the palmitic acid cultivation. ROS production was determined by flow cytometry. The expression of IL- 1β was detected by ELISA; the expressions of NALP3 protein and caspase-1 protein were detected by immunofluorescence; NALP3, ASC, and caspase-1 mRNA were measured by real-time PCR.
RESULTS:
Compared with the THP-1 macrophages without palmitic acid, the level of ROS, NALP3 protein and caspase-1 protein, and the expression of IL-1β were increased after palmitic acid treatment in a dose dependent manner (P<0.05). Compared with the THP-1 macrophages with palmitic acid (400 μmol/L), the level of NALP3 mRNA (P<0.05), the level of NALP3 protein and caspase-1 protein (P<0.05), the expression of IL-1β (P<0.05) were decreased after preadministration of N-acetyl-cysteine in a dose dependent manner.
CONCLUSION
ROS induced by free fatty acid can regulate the activation of NALP3 inflammasome signaling pathway leading to the release of inflammatory cytokines. This pathway may be the possible mechanism of NASH.
Carrier Proteins
;
metabolism
;
Caspase 1
;
metabolism
;
Cell Line
;
Fatty Acids, Nonesterified
;
chemistry
;
Humans
;
Inflammasomes
;
metabolism
;
Interleukin-1beta
;
metabolism
;
Macrophages
;
cytology
;
NLR Family, Pyrin Domain-Containing 3 Protein
;
Reactive Oxygen Species
;
metabolism
;
Real-Time Polymerase Chain Reaction
;
Signal Transduction
6. Research progress of non-motor and extracerebellar symptoms in spinocerebellar ataxia type 2
Yuanyuan LI ; Ying CHANG ; Xiufeng LIU ; Liyao ZHANG ; Lu WANG ; Yayun YAN
Chinese Journal of Neurology 2019;52(11):961-967
Spinocerebellar ataxia type 2 (SCA2) is an autosomal dominant degenerative disease. The main clinical manifestation of SCA2 is progressive cerebellar syndrome, but a wide range of extracerebellar and non-motor symptoms can be observed clinically. The non-motor symptoms and extra-cerebellar signs in SCA2 patients are reviewed to provide a better understanding in cognition, diagnosis and treatment of the disease.
7.Vitamin D Supplementation is Beneficial for Children with Autism Spectrum Disorder: A Meta-analysis
Liyao SONG ; Xiaomei LUO ; Qing JIANG ; Zhi CHEN ; Lifang ZHOU ; Dan WANG ; Ai CHEN
Clinical Psychopharmacology and Neuroscience 2020;18(2):203-213
Objective:
We conducted a meta-analysis of randomized controlled trials to explore whether vitamin D supplementation is beneficial for symptom improvement in children with autism spectrum disorder.
Methods:
We systematically searched the PubMed database, EMBASE, Cochrane Library, Web of Science, Sino-Med, Wanfang Data, and China National Knowledge Infrastructure mainly up to September 2019. Using a fixed effects model, we calculated the standard mean difference with 95% confidence interval. Furthermore, we analyzed baseline serum 25-hydroxyvitamin D levels and outcome scores including the Social Responsiveness Scale and Child Autism Rating Scale scores after vitamin D supplementation.
Results:
There was no significant difference in baseline serum 25-hydroxyvitamin D levels among 203 children included from three studies in the meta-analysis. After vitamin D supplementation, the outcome scores in the experimental group were dramatically elevated compared with those in the control group (p = 0.03).
Conclusion
Vitamin D supplementation improves the typical symptoms of autism spectrum disorder, as indicated by reduced Social Responsiveness Scale and Child Autism Rating Scale scores; thus, it is beneficial for children with autism spectrum disorder.
8.Research progress of neuromelanin and the pathogenesis of Parkinson′s disease
Lu WANG ; Yayun YAN ; Liyao ZHANG ; Xiufeng LIU ; Yan LIU ; Ruirui LUO ; Ying CHANG
Chinese Journal of Neurology 2020;53(11):954-958
Parkinson′s disease (PD) is a common neurodegenerative disease. Its main pathological feature is the progressive loss of substantia nigra and other catecholaminergic neurons containing neuromelanin (NM). Therefore, NM may be closely related to the pathogenesis of PD. The content of NM can be detected by NM magnetic sensitive sequence imaging, and then it can be applied to the study of the neuropathological mechanism of NM and PD. This paper focuses on the physiological significance of NM, its role in the pathogenesis of PD and the prospect of NM as a biomarker to assist diagnosis and disease monitoring of PD.
9.Prediction of the relationship between the mandibular and craniofacial bone and cervical vertebrae based on a genetic algorithm in patients with skeletal class Ⅱ malocclusion
MU Qili ; YANG Luyi ; ZHAO Xuejiao ; YAN Jing ; YU Miao ; WANG Liyao ; WANG Huan
Journal of Prevention and Treatment for Stomatological Diseases 2019;27(11):711-717
Objective:
To explore the correlation between the parameters of the mandible and parameters of cervical vertebrae and craniofacial bone in class Ⅱ skeletal patients in Northeast China and to establish correlation equations expressing the relationship between the mandible and cervical vertebrae and craniofacial bone directly and quantitatively for the clinical diagnosis and treatment of orthodontics and orthognathics and for prediction.
Methods :
The mandible, cranial facial bone and cervical vertebrae of 201 children and adolescents aged 8 to 20 years were measured using digital cranial lateral tablets. All of the cases were divided into male (n=75) and female (n=126) groups using a sensitivity analysis method based on genetic algorithms to select the craniofacial bone and cervical bone with strong sensitivity to mandible parameters and to establish relevant equations.
Results :
Through sensitivity analysis, the parameters with the strongest correlation between the measured values of the mandible were H4 and SN, those with a strong correlation were SN-Ar, the anterior and posterior high ratio SGo/NGn, the Y axis angle and mandibular angle Ar-Go-Gn. The established equation was as follows: males: Ar-Pg=28.415+1.818×H4+0.746×SN(r2=0.056 8, P < 0.001); females: Ar-Pg=15.168+1.706×H4+0.675×SN+0.31×SN-Ar-0.29×Y axis angle (r2=0.611, P < 0.001). No significant difference was found between the predicted values obtained by the established equations and measured values (P > 0.05).
Conclusion
The mandibular length equation established by sensitivity analysis and genetic algorithms is statistically significant and can predict a certain degree of growth and development.
10.Multi-dimensional analysis of serum 25-hydroxyvitamin D in children with febrile seizures
Jinhua HE ; Xiaomei LUO ; Zhi CHEN ; Qing JIANG ; Liyao SONG ; Lifang ZHOU ; Dan WANG ; Ai CHEN
Chinese Journal of Applied Clinical Pediatrics 2020;35(13):1004-1008
Objective:To analyze the serum 25-hydroxyvitamin [25(OH)D] nutritional status of children with febrile seizures in Luzhou area of Sichuan Province, and the relationship of 25(OH)D with gender, age and the local season, so as to provide reference for vitamin D supplementation and prevention of febrile seizures in children in this area.Methods:One hundred and sixty-seven children diagnosed with febrile seizures in the Affiliated Hospital of Southwest Medical University from January 2015 to July 2018 were enrolled in the febrile seizures group, and 170 children aged 0-8 years who underwent health examinations in the outpatient department in the same period were included in the healthy control group.The serum total calcium, serum 25(OH)D and hemoglobin level of children with febrile seizures were analyzed.The correlation of febrile seizures with the level of serum 25 (OH)D was evaluated from the aspects of children gender, age and season.Results:(1) The serum 25(OH)D level of healthy children [(40.6±3.07) μg/L] was significantly higher than that of the children with febrile seizures [(27.18±6.68) μg/L], and the diffe-rence was statistically significant ( t=3.15, P=0.03). The serum 25(OH)D level in children with febrile seizures decreased with age.There was no deficiency found in serum total calcium and hemoglobins of all children with febrile seizures.(2) The incidence rate of febrile seizures was the highest in January (35 cases, 20.96%) and in 2-year-old toddlers (72 cases, 44.91%). Boys were significantly more susceptible to febrile seizures than girls (1.73∶1.00). (3) The serum 25(OH)D level of children with febrile seizures in the region decreased in winter and summer (27.47-30.37 μg/L), and increased in spring and autumn (31.58-35.13 μg/L). The serum 25(OH)D level of children in winter [(27.47±1.80) μg/L] was statistically significantly different from that in spring [(31.58±1.31) μg/L] and in autumn [(35.13±3.93) μg/L] (all P<0.05). The serum 25(OH)D level in children with febrile seizures were inversely proportional to the high temperature in summer [T>35 ℃, 25(OH)D<30 μg/L]. The 25(OH)D level showed a downward trend when the temperature exceeded 35 degrees Celsius.The optimum temperature for children in this area to absorb vitamin D by sun-irradiation was 25-35 ℃. Conclusions:The occurrence of febrile seizures in children of all ages in Luzhou is closely related to the deficiency of vitamin D. Two-year-old boys are prone to be attacked by febrile seizures in January of each year.In addition to winter, children, especially those over 2 years old, are advised to supply vitamin D in high temperature periods in summer when outdoor activities are reduced.