1.Cloning and function analysis of chalcone isomerase gene and chalcone synthase gene in Lonicera macranthoides.
Juan ZENG ; Yu-Qing LONG ; Can LI ; Mei ZENG ; Min YANG ; Xin-Ru ZHOU ; Xiang-Dan LIU ; Ri-Bao ZHOU
China Journal of Chinese Materia Medica 2022;47(9):2419-2429
In order to explore the functions of genes of key rate-limiting enzymes chalcone isomerase(CHI) and chalcone synthase(CHS) in the biosynthesis of flavonoids in Lonicera macranthoides, this study screened and cloned the cDNA sequences of CHI and CHS genes from the transcriptome data of conventional variety and 'Xianglei' of L. macranthoides. Online bioinformatics analysis software was used to analyze the characteristics of the encoded proteins, and quantitative reverse-transcription polymerase chain reaction(qRT-PCR) to detect the expression of CHI and CHS in different parts of the varieties at different flowering stages. The content of luteo-loside was determined by high performance liquid chromatography(HPLC) and the correlation with the expression of the two genes was analyzed. The results showed that the CHI and CHS of the two varieties contained a 627 bp and 1170 bp open reading frame(ORF), respectively, and the CHI protein and CHS protein were stable, hydrophilic, and non-secretory. qRT-PCR results demonstrated that CHI and CHS of the two varieties were differentially expressed in stems and leaves at different flowering stages, particularly the key stages. Based on HPLC data, luteoloside content was in negative correlation with the relative expression of the genes. Thus, CHI and CHS might regulate the accumulation of flavonoids in L. macranthoides, and the specific functions should be further studied. This study cloned CHI and CHS in L. macranthoides and analyzed their expression for the first time, which laid a basis for investigating the molecular mechanism of the differences in flavonoids such as luteoloside in L. macranthoides and variety breeding.
Acyltransferases/metabolism*
;
Chalcone
;
Cloning, Molecular
;
Intramolecular Lyases
;
Lonicera/metabolism*
;
Plant Breeding
2.Correlation between Anxiety, Depression, and Sleep Quality in College Students.
Yu Tong ZHANG ; Tao HUANG ; Fang ZHOU ; Ao Di HUANG ; Xiao Qi JI ; Lu HE ; Qiang GENG ; Jia WANG ; Can MEI ; Yu Jia XU ; Ze Long YANG ; Jian Bo ZHAN ; Jing CHENG
Biomedical and Environmental Sciences 2022;35(7):648-651
3.Research progress on artemisinin antimalarial resistance of Plasmodium falciparum
DUAN Meng-xi ; ZHOU Long-can ; YANG Zhao-qing
China Tropical Medicine 2022;22(11):1086-
Abstract: Malaria, an infectious disease caused by Plasmodium infection, is one of the most important public health problems worldwide. Artemisinin-based combination therapies (ACTs) are recommended by WHO as the first-line treatment for uncomplicated P. falciparum malaria in malaria-endemic areas. The application of artemisinin and its derivatives has played an integral role in reducing the global incidence of malaria. However, in recent years, the emergence and spread of artemisinin resistance has brought great challenges to global malaria control and elimination. At present, the mutation of K13 gene on chromosome 13 of Plasmodium falciparum is most closely related to artemisinin resistance, but in recent years, studies have shown that K13 cannot explain all artemisinin resistance. This article reviews the recent research progress in the field of artemisinin resistance in Plasmodium falciparum, including definition of artemisinin resistance, detection methods and molecular markers related to resistance. In addition, some of the issues discussed in this review remain controversial and require further study.
4.Cloning and Expression Patterns of LmC3H1 Gene in Lonicera macranthoides and Its Correlation with Chlorogenic Acid Content
Ya CHEN ; An-qi WANG ; Cong LIU ; Yu-qing LONG ; Xia LIU ; Juan ZENG ; Can LI ; Xiang-dan LIU ; Ri-bao ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2020;26(9):167-175
Objective::To clone
5.Short-term prognostic factors for Guillain-Barré syndrome in children
Jiayu HONG ; Xiaoyi LI ; Hongyuan DAI ; Na WANG ; Can LUO ; Long ZHENG ; Daokai GONG ; Ruiling ZHOU ; Wenjing LUO ; Bo HU ; Shuping LIU ; Jiajia YAO ; Zuneng LU
Chinese Journal of Neuromedicine 2020;19(5):504-507
Objective:To explore the short-term prognostic factors for Guillain-Barré syndrome (GBS) in children.Methods:The clinical data of children with GBS from 24 hospitals in 10 provinces/municipalities/autonomous regions in southern China (south of Huaihe River) from January 1, 2013 to September 30, 2016 were retrospectively analyzed. The factors affecting the short-term prognoses of children were explored.Results:In these 78 children (50 males and 28 females), the average age was 9.53±5.44 years, and 19 were under 5 years old. Fifty children had history of prodromal events; 28 children had cranial nerve involvement, and 22 had autonomic nerve involvement. Five children needed assisted respiration, and one died during hospitalization. There was no statistically significant difference in percentage of children having poor short-term prognosis (scores of Hughes GBS disability scale≥3 at discharge) between children with different ages, children having different days from onset to admission, children with different clinical classifications or electrophysiological classifications, children with different treatment plans, children having presence or absence of prodromal events, children having presence or absence of cranial nerve involvement ( P>0.05). The proportion of children having poor short-term prognosis in children with autonomic nerve involvement was significantly higher than that of children without autonomic nerve involvement (31.8% vs. 10.7%, P<0.05). Conclusion:The short-term prognosis of children with autonomic nerve involvement is poor.
6.Serum homocysteine and metabolic syndrome in middle-aged and elderly men.
Ming-jia ZHAO ; Yi-hong YANG ; Shan-jie ZHOU ; Dong YUAN ; Wen-hong LU ; Liang XIAO-WEI ; Bao-long ZHANG ; Yu-dang JI ; Can-gang WANG ; Yi-qun GU
National Journal of Andrology 2016;22(2):138-142
OBJECTIVETo investigate the relationship among serum reproductive hormone levels, serum homocysteine (Hcy) levels, metabolic syndrome (MS), and the components of MS in middle-aged and elderly males.
METHODSUsing the cluster and stratified sampling methods and a unified structured questionnaire, we conducted a survey among 948 men aged 40 - 80 years in the rural community, measured their basic physical parameters, and obtained their reproductive hormone levels, serum Hcy concentrations, and metabolism-related indicators. We collected 868 valid questionnaires along with their serum samples, divided the subjects into an MS and a non-MS control group in a 1:1 ratio, and measured their serum Hcy concentrations.
RESULTSAmong the subjects included, 132 were diagnosed with MS. Nonparametric tests showed statistically significant differences between the MS and non-MS groups in the waist circumference (WC), waist-hip ratio (WHR), body mass index (BMI), systolic blood pressure (SBP), and diastolic blood pressure (DBP) (P < 0.05), but not in age (P > 0.05). Significant differences were also observed between the two groups in the levels of serum tT, SHBG, LH, and FTI (P < 0.05) , but not in the concentrations of serum Hcy (P > 0.05). The concentration of serum Hcy exhibited no correlation with BMI, SBP, DBP, FBG, TG, and HDL-C (P > 0.05) and had no influence on MS.
CONCLUSIONThe concentration of serum Hcy is not significantly correlated with MS, nor with its components. The levels of male serum reproductive hormones are associated both with MS and with its components.
Adult ; Aged ; Blood Pressure ; Body Mass Index ; Homocysteine ; blood ; Humans ; Luteinizing Hormone ; blood ; Male ; Metabolic Syndrome ; blood ; diagnosis ; Middle Aged ; Reproduction ; Rural Population ; Sex Hormone-Binding Globulin ; metabolism ; Surveys and Questionnaires ; Testosterone ; blood ; Thyroxine ; blood ; Waist Circumference ; Waist-Hip Ratio
7.Prenatal diagnosis of aberrant right subclavian artery by fetal echocardiography
Shi ZENG ; Qichang ZHOU ; Jiawei ZHOU ; Danming CAO ; Ming ZHANG ; Can LONG
Chinese Journal of Ultrasonography 2014;23(9):762-764
Objective To investigate the clinical value and prenatal diagnosis feasibility of fetal aberrant right subclavian artery(ARSA) with fetal echocardiography.Methods The data of 39 fetuses with ARSA were retrospectively reviewed.The prenatal and postnatal medical records,including the presence of fetal abnormalities,cardiac defect,karyotype and the outcomes of each pregnancy were collected.Results The echocardiographic feature of ARSA was that an ARSA arises as a fourth branch of the arch,from the descending aorta behind the trachea,crosses the thorax between the trachea and the spine,to reach the right arm.The overall incidence of ARSA was 2.3 % (39/17 280),23 cases (59.0 %) as an isolated malformation,16 cases (41.0%) combined with cardiac defect and extracardiac abnormalities,9 cases (23.1%) with chromosomal abnormalities.23 cases underwent termination of pregnancy,2 cases died in uterus and 14 cases were born live.Isolated ARSA group had lower incidence of chromosomal abnormalities (8.7% vs 43.8 %,P < 0.05) and higher fetal survival rate (56.5% vs 6.2%,P <0.05) than the combined detects group.Conclusions The fetus with ARSA complicated with aneuploid karyotype,cardiac defects and extracardiac anomalies are at hight risk of poor prognosis.
8.Imaging Features of Pediatric Pentastomiasis Infection: a Case Report.
Can LAI ; Xi Qun WANG ; Long LIN ; De Chun GAO ; Hong Xi ZHANG ; Yi Ying ZHANG ; Yin Bao ZHOU
Korean Journal of Radiology 2010;11(4):480-484
We report here a case of pentastomiasis infection in a 3-year-old girl who had high fever, abdominal pain, abdominal tension and anemia. Ultrasound scanning of the abdomen revealed disseminated hyperechoic nodules in the liver and a small amount of ascites. Abdominal MRI showed marked hepatomegaly with disseminated miliary nodules of high signal intensity throughout the hepatic parenchyma on T2-weighted images; retroperitoneal lymphadenopathy and disseminated miliary nodules on the peritoneum were also noted. Chest CT showed scattered small hyperdense nodules on both sides of the lungs. The laparoscopy demonstrated diffuse white nodules on the liver surface and the peritoneum. After the small intestinal wall and peritoneal biopsy, histological examination revealed parenchymal tubercles containing several larvae of pentastomids and a large amount of inflammatory cell infiltration around them. The pathological diagnosis was parasitic granuloma from pentastomiasis infection.
Abdomen, Acute/*parasitology
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Animals
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Biopsy
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Child, Preschool
;
Diagnosis, Differential
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Female
;
Humans
;
Magnetic Resonance Imaging/methods
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Parasitic Diseases/*diagnosis
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*Pentastomida
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Tomography, X-Ray Computed/methods
9.Estimation of postmortem interval using microRNA and 18S rRNA degradation in rat cardiac muscle.
Wen-can LI ; Kai-jun MA ; Ping ZHANG ; Hui-jun WANG ; Yi-wen SHEN ; Yue-qin ZHOU ; Zi-qin ZHAO ; Duan MA ; Long CHEN
Journal of Forensic Medicine 2010;26(6):413-417
OBJECTIVE:
To explore the relationship between the time-dependent level changes of microRNA and 18S rRNA and the different postmortem interval (PMI) in rat cardiac muscle.
METHODS:
SD rats were sacrificed by cervical dislocation and placed at ambient temperature 25 degrees C with a humidity of 50%. Total RNA was extracted from the rat cardiac muscle at different time points after death. The levels of miR-1-2 and 18S rRNA were examined using real-time PCR in rat cardiac muscle. The results were expressed by cycle threshold (Ct) value to explore relationship between PMI and Ct value, and the regression functions were established to estimate PMI.
RESULTS:
The miR-1-2 level in rat myocardial tissue showed no significant changes within 120 h after death, and then began to decline. The 18S rRNA level increased gradually within 96 h after death, and then declined slowly. The nonlinear relationships were established between Ct value (18S rRNA), deltaCt value (difference between 18S rRNA and miR-1-2) and PMI. The R2 of conics fitting were 0.9487 and 0.8072, respectively.
CONCLUSION
Ct value of 18S rRNA and deltaCt value present a good correlation with PMI, and can be markers for estimating early PMI.
Animals
;
Forensic Pathology
;
Male
;
MicroRNAs/metabolism*
;
Myocardium/pathology*
;
Postmortem Changes
;
RNA Stability
;
RNA, Messenger/metabolism*
;
RNA, Ribosomal, 18S/metabolism*
;
Random Allocation
;
Rats
;
Rats, Sprague-Dawley
;
Real-Time Polymerase Chain Reaction/methods*
;
Time Factors
10.Changes of serum reproductive hormones with aging among healthy males in a community population of Hebei Province.
Shan-Jie ZHOU ; Wen-Hong LU ; Dong YUAN ; Hong LI ; Yi-Qun GU ; Can-Gang WANG ; Bao-Long ZHANG ; Yu-Dang JI ; Xian-Kun LI
National Journal of Andrology 2009;15(8):679-684
OBJECTIVETo investigate the changes of serum reproductive hormones with male aging and to compare the differences in the hormone levels among different age groups or between township and rural males of the same age group.
METHODSUsing cluster and stratified sampling, we recruited 434 healthy old and middle-aged (40-69 years) males, 198 from the township and 236 from the rural communities. We determined the concentrations of serum total testosterone (tT), luteinizing hormone (LH) and sex hormone binding globulin (SHBG), free testosterone (fT), bio-available testosterone (Bio-T), and obtained the testosterone secretion index (TSI) and free testosterone index (fTI). Meanwhile, we included fifty-nine 20-39 years old males from the same communities in a control group.
RESULTSWith the increase of age, the serum tT levels did not change significantly, while the levels of serum LH and SHBG increased, and those of fT, Bio-T, TSI and fTI decreased gradually. Statistically significant differences were found among the four different age groups in all the parameters of reproductive hormones (P < 0.01), except in the serum tT level (P > 0.05). The serum tT level was not significantly correlated with aging and LH (P > 0.05). Serum LH and SHBG had a marked positive correlation with aging, and SHBG with LH (P < 0.01), while fT, Bio-T, TSI and fTI were negatively correlated with aging and the LH level (P < 0.01). Serum LH, TSI and fTI showed statistical differences (P < 0.05), while fT and Bio-T exhibited extremely significant differences (P < 0.01) between the township and rural males in the 40 -49 yr group, and in the same age group, the increase rates of serum LH and SHBG and reduction rates of fT, Bio-T, TSI and fTI were higher in the rural men than in the township residents. However, the results were just the opposite in the 50 - 59 and 60 - 69 yr groups.
CONCLUSIONThe levels of serum LH, SHBG, fT, Bio-T, TSI and fTI changed with aging in a gradientmanner in the old and middle-aged males, but no significant changes were observed in the level of serum tT. There were statistical differences in many parameters of serum reproductive hormones among different age groups or between township and rural males.
Adult ; Age Factors ; Aged ; Aging ; metabolism ; China ; Humans ; Luteinizing Hormone ; blood ; Male ; Middle Aged ; Rural Population ; Serum Albumin ; metabolism ; Sex Hormone-Binding Globulin ; metabolism ; Testosterone ; blood ; Urban Population ; Young Adult

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