1.Effects of propranolol on femoral fracture healing in mice via miR-92a-3p
Jin ZHANG ; Zhi-Wei CHEN ; Sheng-Zhong XUE ; Wen-Jie ZHOU ; Jiu-Xia WANG ; Jian-Jun SHEN
The Chinese Journal of Clinical Pharmacology 2024;40(20):3028-3032
Objective To explore the effect of propranolol on femoral fracture healing in mice through regulation of microRNA-92a-3p(miR-92a-3p)and its mechanism.Methods C57BL/6J male mice were randomly divided into sham group(equal amount of 0.9%NaCl),model group(equal amount of 0.9%NaCl),experimental group(50 mg·kg-1 propranolol administration),inhibitor group(mice were injected with 100 mg·kg-1 miR-92a-3p inhibitor via tail vein on the basis of the experimental group).Femur was severed and molded in all mice except sham operation group.X-ray was used to observe bone healing.Quantitative real time polymerase chain reaction was used to detect the expression of miR-92a-3p in femur tissues.The expression level of bone formation and bone metabolism markers was detected by enzyme linked immunosorbent assay.Western blot was used to detect the expression of pathway-related proteins.Results The X-ray scores of femur in sham group,model group and experimental group were 11.20±2.60,4.70±1.50 and 9.60±2.40,respectively;the relative expression levels of miR-92a-3p in sham operation group,model group,experimental group and inhibitor group were 1.00±0.09,0.73±0.06,0.90±0.07 and 0.78±0.06;alkaline phosphatase levels were(35.21±2.63),(43.16±3.29),(67.58±5.37)and(49.62±4.05)U·L-1,respectively;crosslaps levels were(4.57±0.52),(8.41±0.91),(4.26±0.67)and(5.73±0.84)ng·mL-1,respectively;the relative expression levels of brain derived neurotrophic factor were 1.00±0.14,0.58±0.05,0.83±0.09 and 0.71±0.06,respectively;the relative expression levels of phospho-tyrosine kinase receptor B were 1.00±0.12,0.62±0.05,0.89±0.08 and 0.76±0.07,respectively;the relative expression levels of phospho-extracellular regulated protein kinases were 1.00±0.11,0.54±0.04,0.78±0.07 and 0.65±0.05,respectively.The above indexes in the model group were compared with those in the sham group,those in the experimental group were compared with those in the model group,and those in the inhibitor group were compared with those in the experimental group,and the differences were statistically significant(P<0.05,P<0.001).Conclusion Propranolol can promote femoral fracture healing in mice,which may be achieved by up-regulating miR-92a-3p activation of brain derived neurotrophic factor/tyrosine kinase receptor B/extracellular regulated protein kinases signaling pathway.
2.Efficacy and Safety of Jianpi Jieyu Decoction for Patients with Mild-to-Moderate Depression of Xin (Heart)-Pi (Spleen) Deficiency Syndrome: A Multi-centre Randomized Controlled Study.
Xu CHEN ; Jiu-Xi CHEN ; Xue-Yan HAN ; Yang ZHAO ; Jing CAO ; Xiu-Zhen JIAO ; Hong-Mei LIU ; Chun-Li GUO ; Shuo MENG ; Shuai LIANG ; Jiang-Xia QI ; Dong CHEN ; Ming-Xia LI ; Yun-Xia JIAO ; Ting-Ting WANG ; Xia HONG
Chinese journal of integrative medicine 2023;29(4):299-307
OBJECTIVE:
To evaluate the efficacy and safety of Jianpi Jieyu Decoction (JJD) for treating patients with mild-to-moderate depression of Xin (Heart)-Pi (Spleen) deficiency (XPD) syndrome.
METHODS:
In this multi-center, randomized, controlled study, 140 patients with mild-to-moderate depression of XPD syndrome were included from Xiyuan Hospital of China Academy of Chinese Medical Sciences and Botou Hospital of Traditional Chinese Medicine from December 2017 to December 2019. They were randomly divided into JJD group and paroxetine group by using a random number table, with 70 cases in each group. The patients in the JJD group were given JJD one dose per day (twice daily at morning and evening, 100 mL each time), and the patients in the paroxetine group were given paroxetine (10 mg/d in week 1; 20 mg/d in weeks 2-6), both orally administration for a total of 6 weeks. The primary outcome was the change of 17-item Hamilton Depression Rating Scale (HAMD-17) score at week 6 from baseline. The secondary outcomes included the Hamilton Anxiety Scale (HAMA) score, Traditional Chinese Medicine Symptom Scale (TCMSS), and Clinlcal Global Impression (CGI) scores at the 2nd, 4th, and 6th weekends of treatment, HAMD-17 response (defined as a reduction in score of >50%) and HAMD-17 remission (defined as a score of ⩽7) at the end of the 6th week of treatment. Adverse events (AEs) were also recorded.
RESULTS:
From baseline to week 6, the HAMD-17 scores decreased 10.2 ± 4.0 and 9.1 ± 4.9 points in the JJD and paroxetine groups, respectively (P=0.689). The HAMD-17 response occurred in 60% of patients in the JJD group and in 50% of those in the paroxetine group (P=0.292); HAMD-17 remission occurred in 45.7% and 30% of patients, respectively (P=0.128). The differences of CGI scores at the 6th week were not statistically significant (P>0.05). There were significant differences in HAMD-17 scores between the two groups at 2nd and 4th week (P=0.001 and P=0.014). The HAMA scores declined 8.1 ± 3.0 and 6.9 ± 4.3 points from baseline to week 6 in the JJD and paroxetine groups, respectively (P=0.905 between groups). At 4th week of treatment, there was a significant difference in HAMA between the two groups (P=0.037). TCMSS decreased 11.4 ± 5.1, and 10.1 ± 6.8 points in the JJD and paroxetine groups, respectively (P=0.080 between groups). At the 6th week, the incidence of AEs in the JJD group was significantly lower than that in the paroxetine group (7.14% vs. 22.86%, P<0.05).
CONCLUSION
Compared with paroxetine, JJD was associated with a significantly lower incidence of AEs in patients with mild-to-moderate depression of XPD syndrome, with no difference in efficacy at 6 weeks. (Trial registration No. ChiCTR2000040922).
Humans
;
Paroxetine/adverse effects*
;
Spleen
;
Anxiety
;
Syndrome
;
Medicine, Chinese Traditional
;
Treatment Outcome
;
Double-Blind Method
3.Acteoside promotes autophagy and apoptosis of hepatoma cells by regulating JNK signaling pathway.
Yu-Jing HE ; Ying ZHENG ; Chu-Yi LI ; Liu-Lu GAO ; Jun-Ke WANG ; Bin LI ; Li-Xia LU ; Pan WANG ; Xiao-Hui YU ; Jiu-Cong ZHANG
China Journal of Chinese Materia Medica 2023;48(9):2343-2351
This study explored the molecular mechanism of acteoside against hepatoma 22(H22) tumor in mice through c-Jun N-terminal kinase(JNK) signaling pathway. H22 cells were subcutaneously inoculated in 50 male BALB/c mice, and then the model mice were classified into model group, low-dose, medium-dose, and high-dose acteoside groups, and cisplatin group. The administration lasted 2 weeks for each group(5 consecutive days/week). The general conditions of mice in each group, such as mental status, diet intake, water intake, activity, and fur were observed. The body weight, tumor volume, tumor weight, and tumor-inhibiting rate were compared before and after administration. Morphological changes of liver cancer tissues were observed based on hematoxylin and eosin(HE) staining, and the expression of phosphorylated(p)-JNK, JNK, B-cell lymphoma-2(Bcl-2), Beclin-1, and light chain 3(LC3) in each tissue was detected by immunohistochemistry and Western blot. qRT-PCR was performed to detect the mRNA expression of JNK, Bcl-2, Beclin-1, and LC3. The general conditions of mice in model and low-dose acteoside groups were poor, while the general conditions of mice in the remaining three groups were improved. The body weight of mice in medium-dose acteoside group, high-dose acteoside group, and cisplatin group was smaller than that in model group(P<0.01). The tumor volume in model group was insignificantly different from that in low-dose acteoside group, and the volume in cisplatin group showed no significant difference from that in high-dose acteoside group. Tumor volume and weight in medium-dose and high-dose acteoside groups and cisplatin group were lower than those in the model group(P<0.001). The tumor-inhibiting rates were 10.72%, 40.32%, 53.79%, and 56.44% in the low-dose, medium-dose, and high-dose acteoside groups and cisplatin group, respectively. HE staining showed gradual decrease in the count of hepatoma cells and increasing sign of cell necrosis in the acteoside and cisplatin groups, and the necrosis was particularly obvious in the high-dose acteoside group and cisplatin group. Immunohistochemical results suggested that the expression of Beclin-1, LC3, p-JNK, and JNK was up-regulated in acteoside and cisplatin groups(P<0.05). The results of immunohistochemistry, Western blot, and qRT-PCR indicated that the expression of Bcl-2 was down-regulated in the medium-dose and high-dose acteoside groups and cisplatin group(P<0.01). Western blot showed that the expression of Beclin-1, LC3, and p-JNK was up-regulated in acteoside and cisplatin groups(P<0.01), and there was no difference in the expression of JNK among groups. qRT-PCR results showed that the levels of Beclin-1 and LC3 mRNA were up-regulated in the acteoside and cisplatin groups(P<0.05), and the level of JNK mRNA was up-regulated in medium-dose and high-dose acteoside groups and cisplatin group(P<0.001). Acteoside promotes apoptosis and autophagy of H22 cells in mice hepatoma cells by up-regulating the JNK signaling pathway, thus inhibiting tumor growth.
Male
;
Animals
;
Mice
;
Cisplatin/pharmacology*
;
Carcinoma, Hepatocellular/genetics*
;
MAP Kinase Signaling System
;
Beclin-1
;
Apoptosis
;
Liver Neoplasms/genetics*
;
Necrosis
;
Proto-Oncogene Proteins c-bcl-2/metabolism*
;
Cell Line, Tumor
;
RNA, Messenger/metabolism*
;
Autophagy
4.Study on HPLC fingerprint and chemical pattern recognition of Mongolian medicine Sanzisan
Yanyan LIU ; Huiwen ZHANG ; Yunxia BAI ; Hong LIU ; Huimin XIA ; Xin JIU ; Huanyun WANG
China Pharmacy 2022;33(3):319-325
OBJECTIVE To establish the HPLC fingerprint of Mongolian medicine Sanzisan ,and to evaluate its internal quality by chemical pattern recognition technique comprehensively. METHODS HPLC method was used. Using geniposide as reference,HPLC fingerprints of 15 batches of Sanzisan were drawn with Similarity Evaluation System of TCM Chromatogram Fingerprint(2012 edition). Similarity evaluation and common peaks identification were conducted. Combined with cluster analysis (CA),principal component analysis (PCA),and orthogonal partial least squares-discriminant analysis (OPLS-DA),the quality of 15 batches of Sanzisan was evaluated ,and the differential markers that affected its quality were screened. RESULTS There were 29 common peaks in 15 batches of Sanzisan ,and the similarity was no less than 0.952,indicating that the chemical composition of the 15 batches of Sanzisan had good consistency. A total of 13 common peaks were identified ,which were chebulic acid ,gallic acid,punicalin,punicalagin A ,punicalagin B ,jasminoside B ,caffeic acid ,corilagin,geniposide,chebulagic acid ,1,2,3,4,6- O-galloylglucose,chebulinic acid ,ellagic acid. Both CA and PCA could divide 15 batches of Sanzisan into four categories ,and the classification results were consistent ,indicating that the quality of 15 batches of Sanzisan had certain differences. Fourteen differential markers (chebulic acid ,gallic acid ,ellagic acid ,etc)that lead to the quality difference between batches were screened out by OPLS-DA. CONCLUSIONS Established HPLC fingerprint analysis method is simple and stable. Combined with chemical pattern recognition analysis ,it can be used for the quality control of Sanzisan.
5.Analyzing the difference between atomic fluorescence spectrometry and ICP-MS in the determination of arsenic in urine
LIANG Jia bin HE Yi nan GAO Yun xia GUO Jia ming GUO Yao ping CHEN Jiu LIU Yi min WANG Zhi
China Occupational Medicine 2022;52(04):421-
Abstract: Objective ( )
To compare the measured results of arsenic in urine by atomic fluorescence spectrometry AFS and
- ( - ), Methods
inductively coupled plasma mass spectroscopy ICP MS and analyze the reasons of the difference. The samples
WS/T 474-2015 Determination of Arsenic in Urine by Hydride Generation Atomic Fluorescence
were pretreated according to
Spectrometry, ( ∶ ∶ ∶∶ ,V/V/V)
and digested with mixed acid nitric acid sulfuric acid perchloric acid=3 1 1 and then determined by
- -
AFS and ICP MS. The samples were diluted with 0.50% nitric acid and determined by ICP MS. The samples included urine
, , (
arsenic quality control samples inorganic arsenic supplemented samples and organic arsenic arsenic choline and arsenic
) -
betaine supplemented samples. Standard curve method was used to compare the results of AFS method and ICP MS method.
Results ( ) ( )
The results of quality control samples by AFS method digestion and ICP-MS method without digestion were
, -
within the range of reference values but the values obtained by AFS method were lower than those obtained by ICP MS method.
- - - ,
The recovery of AFS and ICP MS was 97.79% 100.82% and 99.55% 99.98% respectively. In the middle and high
, - ( P )
concentration groups the measured values of inorganic arsenic by AFS were lower than that by ICP MS all <0.01 . The
( ) -
recovery of arsenic betaine and arsenic choline by AFS method digestion was only 2.17% 2.63%. The values of arsenic betaine
( ) - (
and arsenic choline measured by AFS method digestion were lower than those measured by ICP MS method without
) - ( )( P )Conclusion
digestion and ICP MS method digestion all <0.01 . The result of urine arsenic measured by AFS method
- ,
was lower than that measured by ICP MS method which may be related to the mixed acid digestion of AFS method.
Keywords: ; - ; ; ; ; ;
6.Delivery room resuscitation and short-term outcomes of extremely preterm and extremely low birth weight infants: a multicenter survey in North China.
Shuai-Jun LI ; Qi FENG ; Xiu-Ying TIAN ; Ying ZHOU ; Yong JI ; Yue-Mei LI ; Shu-Fen ZHAI ; Wei GUO ; Fang ZHANG ; Rong-Xiu ZHENG ; Hai-Ying HE ; Xia LIU ; Jun-Yi WANG ; Hua MEI ; Hong-Yun WANG ; Hua XIE ; Chao-Mei ZENG ; Li MA ; Ping-Ping ZHANG ; Jin-Yu LI ; Xiao-Ying WANG ; Li-Hua LI ; Hong CUI ; Shu-Lan YANG ; Lu CHEN ; Xiao-Hong GU ; Yan-Ju HU ; Sheng-Shun QUE ; Li-Xia SUN ; Ming YANG ; Wen-Li ZHAO ; Qiu-Yan MA ; Hai-Juan WANG ; Jiu-Ye GUO
Chinese Medical Journal 2021;134(13):1561-1568
BACKGROUND:
Delivery room resuscitation assists preterm infants, especially extremely preterm infants (EPI) and extremely low birth weight infants (ELBWI), in breathing support, while it potentially exerts a negative impact on the lungs and outcomes of preterm infants. This study aimed to assess delivery room resuscitation and discharge outcomes of EPI and ELBWI in China.
METHODS:
The clinical data of EPI (gestational age [GA] <28 weeks) and ELBWI (birth weight [BW] <1000 g), admitted within 72 h of birth in 33 neonatal intensive care units from five provinces and cities in North China between 2017 and 2018, were analyzed. The primary outcomes were delivery room resuscitation and risk factors for delivery room intubation (DRI). The secondary outcomes were survival rates, incidence of bronchopulmonary dysplasia (BPD), and risk factors for BPD.
RESULTS:
A cohort of 952 preterm infants were enrolled. The incidence of DRI, chest compressions, and administration of epinephrine was 55.9% (532/952), 12.5% (119/952), and 7.0% (67/952), respectively. Multivariate analysis revealed that the risk factors for DRI were GA <28 weeks (odds ratio [OR], 3.147; 95% confidence interval [CI], 2.082-4.755), BW <1000 g (OR, 2.240; 95% CI, 1.606-3.125), and antepartum infection (OR, 1.429; 95% CI, 1.044-1.956). The survival rate was 65.9% (627/952) and was dependent on GA. The rate of BPD was 29.3% (181/627). Multivariate analysis showed that the risk factors for BPD were male (OR, 1.603; 95% CI, 1.061-2.424), DRI (OR, 2.094; 95% CI, 1.328-3.303), respiratory distress syndrome exposed to ≥2 doses of pulmonary surfactants (PS; OR, 2.700; 95% CI, 1.679-4.343), and mechanical ventilation ≥7 days (OR, 4.358; 95% CI, 2.777-6.837). However, a larger BW (OR, 0.998; 95% CI, 0.996-0.999), antenatal steroid (OR, 0.577; 95% CI, 0.379-0.880), and PS use in the delivery room (OR, 0.273; 95% CI, 0.160-0.467) were preventive factors for BPD (all P < 0.05).
CONCLUSION
Improving delivery room resuscitation and management of respiratory complications are imperative during early management of the health of EPI and ELBWI.
Birth Weight
;
Bronchopulmonary Dysplasia
;
China/epidemiology*
;
Delivery Rooms
;
Female
;
Gestational Age
;
Humans
;
Infant
;
Infant, Extremely Low Birth Weight
;
Infant, Extremely Premature
;
Infant, Newborn
;
Male
;
Pregnancy
7.Adefovir Dipivoxil plus Chinese Medicine in HBeAg-Positive Chronic Hepatitis B Patients: A Randomized Controlled 48-Week Trial.
Xiao-Ke LI ; Ming-Xiang ZHANG ; Feng-Zhen SHAO ; Da-Qiao ZHOU ; Jing-Dong XUE ; Tie-Jun LIU ; Xiao-Ling CHI ; Bing-Jiu LU ; Xian-Bo WANG ; Qin LI ; Jun LI ; De-Wen MAO ; Hua-Sheng YANG ; Hong-Zhi YANG ; Wen-Xia ZHAO ; Yong LI ; Guo-Liang ZHANG ; Yi-Ming ZHAO ; Jian-Dong ZOU ; Meng-Yang LIU ; Ke-Ke ZHANG ; Xian-Zhao YANG ; Da-Nan GAN ; Ying LI ; Peng ZHANG ; Zhi-Guo LI ; Shuo LI ; Yong-An YE
Chinese journal of integrative medicine 2020;26(5):330-338
OBJECTIVE:
To evaluate the effects of a 48-week course of adefovir dipivoxil (ADV) plus Chinese medicine (CM) therapy, namely Tiaogan Jianpi Hexue () and Tiaogan Jiedu Huashi () fomulae, in hepatitis B e antigen (HBeAg)-positive Chinese patients.
METHODS:
A total of 605 HBeAg-positive Chinese CHB patients were screened and 590 eligible participants were randomly assigned to 2 groups in 1:1 ratio including experimental group (EG, received ADV plus CM) and control group (CG, received ADV plus CM-placebo) for 48 weeks. The major study outcomes were the rates of HBeAg and HBV-DNA loss on week 12, 24, 36, 48, respectively. Secondary endpoints including liver functions (enzymes and bilirubin readings) were evaluated every 4 weeks at the beginning of week 24, 36, and 48. Routine blood, urine, and stool analyses in addition to electrocardiogram and abdominal B scan were monitored as safety evaluations. Adverse events (AEs) were documented.
RESULTS:
The combination therapy demonstrated superior HBeAg loss at 48 weeks, without additional AEs. The full analysis population was 560 and 280 in each group. In the EG, population achieved HBeAg loss on week 12, 24, 36, and 48 were 25 (8.90%), 34 (12.14%), 52 (18.57%), and 83 (29.64%), respectively; the equivalent numbers in the CG were 20 (7.14%), 41 (14.64%), 54 (19.29%), and 50 (17.86%), respectively. There was a statistically significant difference between these group values on week 48 (P<0.01). No additional AEs were found in EG. Subgroup analysis suggested different outcomes among treatment patterns.
CONCLUSION
Combination of CM and ADV therapy demonstrated superior HBeAg clearance compared with ADV monotherapy. The finding indicates that this combination therapy may provide an improved therapeutic effect and safety profile (ChiCTR-TRC-11001263).
Adenine
;
analogs & derivatives
;
therapeutic use
;
Adult
;
Antiviral Agents
;
therapeutic use
;
Double-Blind Method
;
Drug Therapy, Combination
;
Drugs, Chinese Herbal
;
therapeutic use
;
Female
;
Hepatitis B e Antigens
;
immunology
;
Hepatitis B, Chronic
;
drug therapy
;
immunology
;
Humans
;
Male
;
Medicine, Chinese Traditional
;
Organophosphonates
;
therapeutic use
;
Young Adult
8.Alcohol consumption analysis among patients with liver disease in China.
Yan-Di XIE ; Chang-Qing ZHAO ; Jiu-Ping WANG ; Chang-Sheng CHENG ; Jun-Ying ZHOU ; Ying ZHANG ; Hong XIA ; Lai WEI
Chinese Medical Journal 2019;132(4):420-430
BACKGROUND:
Alcohol consumption has been observed to be a contributing factor in liver damage. However, very few studies have tried to decipher the correlation between patients with liver disease and alcohol consumption. Therefore, this study was planned to determine the prevalence of alcohol consumption among patients with liver disease, and to evaluate the risk factors, liver diseases, and chronic medical conditions associated with alcohol drinking.
METHODS:
A cross-sectional study was conducted among patients with liver disease in 30 provinces, autonomous regions, and municipalities across China. All participants answered the questionnaire, which led to the calculation of Alcohol Use Disorders Inventory Test (AUDIT) score for each patient. Based on this score, low-risk drinkers, hazardous drinkers, and harmful drinkers were defined as having AUDIT score of <8, between 8 and 15, and ≥16, respectively.
RESULTS:
A total of 1489 participants completed the questionnaire. Based on this information, 900 (60.44%) participants were classified as alcohol drinkers. Among these, 8.66% were ex-drinkers, 22.10% were low-risk drinkers, 17.13% were hazardous drinkers, and 12.56% were harmful drinkers. Further investigation of the association between alcohol consumption and other baseline characteristics of patients with liver disease revealed that usually men <40 years old, participants having higher family annual income, having college degree or higher education, living alone, having higher body mass index (BMI), current smokers, and ex-smokers had significant association with higher risk of alcohol consumption. In addition, among the 18.07% of the participants with cirrhosis, it was observed that risk of cirrhosis increased with higher alcohol consumption. Furthermore, harmful drinkers showed greater odds of hypertension and heart diseases, while hazardous drinkers and harmful drinkers, both had greater odds of hyperlipidemia.
CONCLUSIONS
Overall our analyses indicated that among the patients with liver disease in China, there was high rate of alcohol consumption and dependence. Alcohol consumption usually associated with men <40 years old, higher family income, education level, living alone, high BMI, and smoking. Increased alcohol consumption not only increased the risk of cirrhosis, but also enhanced the risk of hypertension, heart diseases, and hyperlipidemia.
Adult
;
Aged
;
Alcohol Drinking
;
adverse effects
;
Alcoholism
;
etiology
;
Cross-Sectional Studies
;
Female
;
Humans
;
Liver Diseases
;
etiology
;
Male
;
Middle Aged
;
Smoking
;
adverse effects
9. A preliminary cervical cancer screening cascade for eight provinces rural Chinese women: a descriptive analysis of cervical cancer screening cases in a 3-stage framework
Shu-Xia WANG ; Jiu-Ling WU ; Rui-Min ZHENG ; Wei-Yi XIONG ; Jing-Yi CHEN ; Lan MA ; Xiao-Min LUO
Chinese Medical Journal 2019;132(15):1773-1779
Background:
Cascade analysis is an effective method to analyze the processing data of an event, such as a provided service or a series of examinations. This study aimed to develop a primary cervical cancer screening cascade in China to promote the quality of the screening process.
Methods:
We designed a cervical cancer screening cascade in China according to the program flow chart. It had three stages, each with two steps and one result. Data from 117,522 women aged 35 to 64 years in the Rural Cervical Cancer Surveillance Project from January 1, 2014, to December 31, 2014, were collected to analyze the main results of the cascade. The data and proportion are used to describe the follow-up of cervical cancer and pre-cancer detection rate.
Results:
In 2014, 117,522 (80.94% of all cases reported by the Rural Cervical Cancer Surveillance Project) women aged 35 to 64 years had not received cervical cytology in the previous 3 years. The pre-cancer and cancer detection rates were 256.12/100,000 and 16.16/100,000, respectively. A total of 3031 cases failed to follow-up through the screening process, and 1189, 1555, and 287 cases were lost at cervical cytology, colposcopy, and histopathological screening stages, respectively. The estimated cases of pre-cancer and cancer cases would have been 544 and 34, respectively, and the estimated detection rates of pre-cancer and cancer would have been 462.89/100,000 and 28.93/100,000, respectively.
Conclusion
In order to increase the detection rate of cervical cancer, cervical cancer screening staff should focus on increasing the rate of follow-up of those who are positive for cervical cancer screening (ie, those with positive cytology results), especially for the 40 to 44 years age range.
10.Methylation-Based Age Estimation Model Construction and Its Effectiveness Evaluation.
Shan Fei LI ; Fu Duan PENG ; Jian Ning WANG ; Jian Jun ZHONG ; Hui ZHAO ; Ling WANG ; Yong Jiu LI ; Fan LIU ; Cai Xia LI ; Lei FENG
Journal of Forensic Medicine 2019;35(1):17-22
OBJECTIVES:
To screen the DNA methylation loci associated with the age of Han males in northern China and to construct an age estimation model.
METHODS:
Twenty-one candidate methylation loci were screened. The DNA methylation levels of 476 blood samples from Chinese Han males were detected for 21 amplicons using EpiTYPER technology platform, and data on 153 DNA methylation loci were obtained.
RESULTS:
After correlation analysis, 8 age-related DNA methylation loci were finally screened. CpG1, CpG2, CpG4, CpG7, CpG8 were located on TRIM59, RASSF5, Clorf132, CSNK1D, ELOVL2,CpG5, CpG6 on PDE4C, and CpG3 on chr17:21452808. Based on the 8 loci, 352 samples were used for model construction. A multivariate linear regression age estimation model was constructed (R2=0.93), with mean absolute deviation (MAD) of 2.69 years old. When 109 samples were used for model validation, the MAD was 3.80 years old. The test was repeated 3 times in 15 new samples, with MADs of 4.08, 4.68 and 3.93 years old, respectively.
CONCLUSIONS
The age estimation model on Han males in northern China constructed in this study can be used to estimate the age of victims and suspects and to narrow the scope of investigation, and therefore has practical application value.
Adaptor Proteins, Signal Transducing
;
Apoptosis Regulatory Proteins
;
Asian People
;
Child, Preschool
;
China
;
CpG Islands
;
DNA Methylation
;
Humans
;
Intracellular Signaling Peptides and Proteins
;
Linear Models
;
Male
;
Membrane Proteins
;
Metalloproteins
;
Monomeric GTP-Binding Proteins
;
Tripartite Motif Proteins

Result Analysis
Print
Save
E-mail