1.Effect of Modified Xiangsha Liujunzitang on Hepatic Kupffer Cell Inflammation Mediated by Intestinal-derived LPS in Rats with Hyperlipidemia and Spleen Deficiency Syndrome
Mengzhu CHE ; Lianqun JIA ; Dongyu MIN ; Guoyuan SUI ; Qi ZHANG ; Guanlin YANG ; Yunhao CUI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(16):77-86
ObjectiveThe study aims to investigate the intervention effect of modified Xiangsha Liujunzitang (M-XSLJZ) on intestinal-derived lipopolysaccharide (LPS)-activated Kupffer cell inflammation in rats with hyperlipidemia spleen deficiency syndrome. MethodsSeventy male SD rats were randomly divided into seven groups (n=10): blank control (CON), high-fat diet without spleen deficiency (HFD), high-fat diet with spleen deficiency (SD-HFD), M-XSLJZ low-, medium-, and high-dose groups (XS-L, XS-M, XS-H), and western medicine control (R). Spleen deficiency was induced in SD-HFD, XS-L, XS-M, XS-H, and R groups via irregular diet combined with exhaustive swimming for 15 days. The CON group received a standard diet, while other groups were fed a high-fat diet for 10 weeks to establish the hyperlipidemia model. After successful modeling, rats were treated for 8 weeks: M-XSLJZ was administered at 3.51, 7.02, 14.04 g·kg-1 in XS-L, XS-M, and XS-H groups, respectively. The R group received 9×10-4 g·kg-1 of a reference drug. D-xylose excretion rate was measured by the phloroglucinol method. Blood lipids were assessed using an automated biochemical analyzer. Hematoxylin-eosin (HE) staining was used to evaluate the pathological conditions of the liver, and oil red O staining was used to observe the lipid deposition in the liver. The levels of LPS, portal vein serum LPS, LPS-binding protein (LBP), serum interleukin-6 (IL-6), IL-1β, and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). Immunofluorescence was used to evaluate CD86 expression and CD68/TLR4 co-localization in the liver. Protein levels of TLR4, MyD88, NF-κB p65, and p-NF-κB p65 in Kupffer cells were analyzed via Western blot automated protein analysis. Hepatic IL-6, TNF-α, and IL-1β mRNA and protein levels were measured using Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot. ResultsCompared with the CON group, the SD-HFD group showed a decrease in D-xylose excretion (P<0.01). TC, TG, HDL-C, and LDL-C increased (P<0.05, P<0.01). A large number of hepatic lipid vacuoles and orange-red lipid droplet deposition appeared in the liver. Ileal LPS, portal LPS, and LBP increased (P<0.05, P<0.01). The levels of serum IL-6, TNF-α, and IL-1β increased (P<0.01). The expression of CD86 was upregulated (P<0.01), and the co-expression of CD68 and TLR4 was enhanced. The protein levels of TLR4, MyD88, and p-p65 in Kupffer cells increased (P<0.01). The mRNA and protein levels of IL-6, TNF-α, and IL-1β increased (P<0.05, P<0.01). Compared with the HFD group, the SD-HFD group exhibited decreased D-xylose excretion (P<0.01), higher HDL-C, LDL-C (P<0.05), increased portal LBP and LPS (P<0.05), increased serum IL-6 and TNF-α (P<0.01), upregulated CD86 (P<0.01), enhanced CD68/TLR4 co-expression, and higher TNF-α mRNA/protein (P<0.05). Compared with the SD-HFD group, all M-XSLJZ treatment groups showed reduced TC, TG, and LDL-C (P<0.05, P<0.01). XS-H and R groups displayed improved hepatic lipid deposition. XS-H and R groups had lower ileal LPS, portal LPS, and LBP levels (P<0.05, P<0.01). All M-XSLJZ treatment groups exhibited reduced serum IL-6, IL-1β, and TNF-α (P<0.01). The XS-H group showed downregulated CD86 (P<0.01) and weakened CD68/TLR4 co-expression. The XS-H group had reduced TLR4, MyD88, and p-NF-κB p65 in Kupffer cells (P<0.01). XS-H and R groups showed lower IL-6, TNF-α, and IL-1β mRNA/protein (P<0.05, P<0.01). ConclusionM-XSLJZ may exert its lipid-lowering effects by inhibiting intestinal-derived LPS and alleviating Kupffer cell inflammation in the liver.
2.Development of Chinese herbal medicine for sensorineural hearing loss.
Yunhao WU ; Jingwen ZHANG ; Qiuping LIU ; Zhuang MIAO ; Renjie CHAI ; Wenyong CHEN
Acta Pharmaceutica Sinica B 2024;14(2):455-467
According to the World Health Organization's world report on hearing, nearly 2.5 billion people worldwide will suffer from hearing loss by 2050, which may contribute to a severe impact on individual life quality and national economies. Sensorineural hearing loss (SNHL) occurs commonly as a result of noise exposure, aging, and ototoxic drugs, and is pathologically characterized by the impairment of mechanosensory hair cells of the inner ear, which is mainly triggered by reactive oxygen species accumulation, inflammation, and mitochondrial dysfunction. Though recent advances have been made in understanding the ability of cochlear repair and regeneration, there are still no effective therapeutic drugs for SNHL. Chinese herbal medicine which is widely distributed and easily accessible in China has demonstrated a unique curative effect against SNHL with higher safety and lower cost compared with Western medicine. Herein we present trends in research for Chinese herbal medicine for the treatment of SNHL, and elucidate their molecular mechanisms of action, to pave the way for further research and development of novel effective drugs in this field.
3.Effects of long-term exposure to ambient fine particulate matter on diabetes mellitus and the moderating effects of diet
Jinxia WANG ; Yunhao SHI ; Dongshuai WANG ; Xuehao DONG ; Hanqing ZHANG ; Sijie ZHOU ; Yi ZHAO ; Yuhong ZHANG ; Yajuan ZHANG
Journal of Environmental and Occupational Medicine 2024;41(3):259-266
Background Long-term exposure to ambient fine particulate matter (PM2.5) may increase the risk of diabetes, and a healthy diet can effectively control fasting blood glucose levels. However, it is unclear whether dietary factors have a moderating effect on the risk of diabetes associated with atmospheric PM2.5 exposure. Objective To investigate the association between long-term exposure to PM2.5 and diabetes in rural areas of Ningxia, and potential interaction of long-term exposure to atmospheric PM2.5 and diet on diabetes. Methods The study subjects were selected from the baseline survey data of the China Northwest Cohort-Ningxia (CNC-NX) , a natural population cohort. A total of 13917 subjects were included, excluding participants with missing covariate information. We utilized the annual average ambient PM2.5 concentration from 2014 to 2018 as the long-term exposure level. Logistic regression and multiple linear regression were employed to analyze the associations of long-term atmospheric PM2.5 exposure with diabetes and fasting blood glucose levels. Stratification by frequency of vegetable consumption, frequency of fruit consumption, and salty taste was used to examine moderating effects on the diabetes risk associated with atmospheric PM2.5 exposure. Results The mean age of the 13917 subjects was (56.8±10.0) years, and the prevalence of diabetes was 9.8%. Between 2014 and 2018, the average annual concentration of PM2.5 was (38.10±4.67) μg·m−3. The risk (OR) of diabetes was 1.018 (95%CI: 1.005, 1.032) and the fasting blood glucose was increased by 0.011 (95%CI: 0.004, 0.017) mmol·L−1 for each 1 μg·m−3 increase in PM2.5 concentration. Compared to those who consumed vegetables < 1 time per week, individuals who consume vegetables 1-3 times per week and ≥4 times per week had a reduced risk of developing diabetes by 27.1% (OR=0.729, 95%CI: 0.594, 0.893) and 16.8% (OR=0.832, 95%CI: 0.715, 0.971) respectively. Similarly, when compared to those who consumed fruits <1 time per week, individuals who consumed fruits 1-3 times per week and ≥4 times per week exhibited a reduced risk of diabetes by 16.4% (OR=0.836, 95%CI: 0.702, 0.998) and 18.2% (OR=0.818, 95%CI: 0.700, 0.959) respectively. Fasting blood glucose decreased by 0.202 (95%CI: -0.304, -0.101) mmol·L−1 in participants who ate vegetables 1-3 times per week. The effect of salty taste on diabetes and fasting blood glucose was not significant. The results of stratified analysis by dietary factors and PM2.5 concentration showed that the risks of diabetes were increased in the low PM2.5 pollution-low vegetable intake frequency group and the high PM2.5 pollution-low vegetable intake frequency group compared with the low PM2.5 pollution-high vegetable intake frequency group, with OR values of 3.987 (95%CI: 2.943, 5.371) and 1.433 (95%CI: 1.143, 1.796) respectively. The risk of diabetes was 50.1% higher in participants with high PM2.5 pollution and low fruit intake frequency than in participants with low PM2.5 pollution and high fruit intake frequency (OR=1.501, 95%CI: 1.171, 1.926). No interaction was found between salty taste and PM2.5 on diabetes. Conclusion Long-term exposure to ambient PM2.5 is associated with an increased fasting blood glucose and an elevated risk of diabetes in rural Ningxia population. Increasing the frequency of weekly consumption of vegetables or fruits may have a certain protective effect against diabetes occurrence, as well as a moderating effect on diabetes and fasting blood glucose levels associated with long-term exposure to atmospheric PM2.5.
4.Individual and interactive effects of atmospheric PM2.5 and O3 on mortality of circulatory system diseases in Ningxia
Dongshuai WANG ; Xuehao DONG ; Jinxia WANG ; Yunhao SHI ; Hanqing ZHANG ; Sijie ZHOU ; Yajuan ZHANG
Journal of Environmental and Occupational Medicine 2024;41(1):25-33
Background The impact of atmospheric fine particulate matter (PM2.5) and ozone (O3) on the mortality of circulatory system diseases cannot be ignored. However, whether the interaction between PM2.5 and O3 can affect population health is rarely reported and requires study. Objective To investigate the individual and interactive impacts of atmospheric PM2.5 and O3 on the mortality of circulatory system diseases in the population of Ningxia region. Methods The data of 119647 deaths due to circulatory system diseases, daily average concentrations of atmospheric pollutants, and meteorological data in Ningxia from 2013 to 2020 were retrieved. PM2.5 was divided into low, medium, and high concentrations according to the primary and secondary national limits (35 and 75 μg·m−3) of the Ambient air quality standards. Similarly, O3 was divided into low, medium, and high concentrations according to the national limits (100 and 160 μg·m−3). Using a generalized additive mixed model based on quasi Poisson distribution, the impacts of atmospheric PM2.5 and O3 as well as their interaction on the mortality of circulatory system diseases were analyzed using the population data of Ningxia region. Results During the target period, males and the ≥ 65 year group accounted for larger proportions of deaths due to circulatory system diseases (55.47% and 79.87% respectively). The daily average concentration of PM2.5 (40.25 μg·m−3) exceeded the national primary limit. In the single pollution model, the highest cumulative lag effects for mortality from circulatory system diseases were PM2.5 exposure over previous 1 d (lag01) and O3 exposure for previous 2 d (lag02), and their excess risk (ER) values were 1.03% (95%CI: 0.67%, 1.40%) and 1.02% (95%CI: 0.57%, 1.50%), respectively. The results of concentration stratification analysis showed that the most significant risks of death from circulatory system diseases [ER (95%CI): 1.12% (0.32%, 1.92%) and 0.95% (0.13%, 1.79%) respectively] were found at medium PM2.5 and O3 concentrations. The interaction analysis revealed that under, a synergistic effect on the risk of death from circulatory system diseases was identified (relative excess risk due to interaction=3.08%, attributable proportion of interaction=2.90%, synergy index=1.89) when considering the coexistence of PM2.5 and O3 above the primary limit. As the concentrations of PM2.5 and O3 increased, the synergistic effect increased the risk of death from circulatory system diseases in the general population, men, women, and the ≥ 65 years group. Conclusion Both atmospheric PM2.5 and O3 can increase the risk of death from circulatory system diseases, and the two pollutants have a synergistic effect on the risk of death from circulatory system diseases.
5.Progress of treatment strategy after obturator nerve injury during pelvic lymph node dissection
Ling-Min HE ; Yunhao ZHANG ; Xu SUN ; Aobing MEI
The Journal of Practical Medicine 2024;40(15):2183-2186
Obturator nerve injury(ONI)is a rare complication of pelvic lymph node dissection(PLND).Once ONI occurs,ipsilateral lower limb sensory and motor dysfunction occurs,even affecting daily life.During PLND operation,different types of obturator nerve injuries occur due to various injury mechanisms,and different repair strategies are available according to different injury types.The fundamental repair strategy is to restore the anatomical structure of obturator nerve.Timely intraoperative surgical repair,postoperative adjuvant drug or physi-cal therapy,and the prognosis is good.The purpose of this article is to summarize the treatment and prevention of different types of ONI during PLND for prostate cancer and bladder cancer,which has guiding significance for urologists to avoid and treat ONI during PLND.
6.Evaluation of the curative effect of traditional Chinese medicine bone-setting technique in the treatment of knee osteoarthritis
Xi LI ; Jian ZHANG ; Guohui LIU ; Yunhao LIU ; Zekun ZHANG ; Tianci GAO ; Jingxi WANG ; Yongwang ZHANG ; Shilin YIN ; Lu LIU ; Liqing QI ; Shuangqing DU
The Journal of Practical Medicine 2024;40(17):2495-2502
Objective To observe the clinical effect of traditional Chinese medicine bone-setting technique using spinal,pelvi-lower extremity line to treat patients with knee osteoarthritis(KOA).Methods 426 patients with KOA were all from the First Affiliated Hospital of Hebei University of Traditional Chinese Medicine.They were randomly divided into experimental group(384 cases,57 cases of elimination,shedding and termination)by computer generated sequence.Traditional Chinese bone setting techniques were applied with spinal-pelvic-lower limb force line(divided into three parts:lumbar fixed point reduction method,hip joint push-pull and extension method and knee peripheral tendon recovery method every 3 days.2 weeks)treatment;The control group was the waiting treatment group(48 cases,6 cases were eliminated,abscission,termination),which was only used for clinical observation for 2 weeks.The main outcome index was WOMAC pain score.Secondary outcome measures were WOMAC stiffness score,functional score,standardized score and quality of life score(SF-12).The test time points were baseline,2 weeks after enrollment,and follow-up(14 weeks after enrollment).The control group was at baseline and 2 weeks after enrollment.Results Compared with baseline,WOMAC pain score,stiffness score,functional score and standardized score were all decreased in 2 groups 2 weeks after enrollment(P<0.05),but the experimental group was significantly decreased compared with the control group(P<0.001).SF-12 quality of life scores were all higher than before(P<0.001),but the experimental group was significantly higher than the control group(P<0.001).At follow-up,compared with 2 weeks after enrollment,WOMAC pain scores were increased(P<0.001),WOMAC stiffness,joint function and standardized scores were decreased(P<0.001),and SF-12 scores were increased(P<0.001).Conclusion The use of spinal-pelvi-lower extremity line of traditional Chinese medicine bone-setting technique in the treatment of KOA is effective in improving the knee joint function and improving the quality of life of patients,but the short-term effect of pain relief is good,and the long-term effect is not good.Its safety is good,and it can be considered in clinical application for KOA patients with joint dysfunction as the main manifestation.
7.Artificial intelligence system for outcome evaluations of human in vitro fertilization-derived embryos
Ling SUN ; Jiahui LI ; Simiao ZENG ; Qiangxiang LUO ; Hanpei MIAO ; Yunhao LIANG ; Linling CHENG ; Zhuo SUN ; Hou Wa TAI ; Yibing HAN ; Yun YIN ; Keliang WU ; Kang ZHANG
Chinese Medical Journal 2024;137(16):1939-1949
Background::In vitro fertilization (IVF) has emerged as a transformative solution for infertility. However, achieving favorable live-birth outcomes remains challenging. Current clinical IVF practices in IVF involve the collection of heterogeneous embryo data through diverse methods, including static images and temporal videos. However, traditional embryo selection methods, primarily reliant on visual inspection of morphology, exhibit variability and are contingent on the experience of practitioners. Therefore, an automated system that can evaluate heterogeneous embryo data to predict the final outcomes of live births is highly desirable. Methods::We employed artificial intelligence (AI) for embryo morphological grading, blastocyst embryo selection, aneuploidy prediction, and final live-birth outcome prediction. We developed and validated the AI models using multitask learning for embryo morphological assessment, including pronucleus type on day 1 and the number of blastomeres, asymmetry, and fragmentation of blastomeres on day 3, using 19,201 embryo photographs from 8271 patients. A neural network was trained on embryo and clinical metadata to identify good-quality embryos for implantation on day 3 or day 5, and predict live-birth outcomes. Additionally, a 3D convolutional neural network was trained on 418 time-lapse videos of preimplantation genetic testing (PGT)-based ploidy outcomes for the prediction of aneuploidy and consequent live-birth outcomes.Results::These two approaches enabled us to automatically assess the implantation potential. By combining embryo and maternal metrics in an ensemble AI model, we evaluated live-birth outcomes in a prospective cohort that achieved higher accuracy than experienced embryologists (46.1% vs. 30.7% on day 3, 55.0% vs. 40.7% on day 5). Our results demonstrate the potential for AI-based selection of embryos based on characteristics beyond the observational abilities of human clinicians (area under the curve: 0.769, 95% confidence interval: 0.709–0.820). These findings could potentially provide a noninvasive, high-throughput, and low-cost screening tool to facilitate embryo selection and achieve better outcomes. Conclusions::Our study underscores the AI model’s ability to provide interpretable evidence for clinicians in assisted reproduction, highlighting its potential as a noninvasive, efficient, and cost-effective tool for improved embryo selection and enhanced IVF outcomes. The convergence of cutting-edge technology and reproductive medicine has opened new avenues for addressing infertility challenges and optimizing IVF success rates.
8.Exploring the Mechanism of Electroacupuncture's Anxiolytic Based on Hippocampal Metabolomics and 16S rRNA Sequencing
Shimeng LYU ; Guangheng ZHANG ; Yitong LU ; Xia ZHONG ; Yunhao YI ; Yuexiang MA ; Jing TENG
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(4):1036-1049
Objective Exploring the mechanism of electroacupuncture's anti anxiety effect through methods such as hippocampal metabolomics and 16S rRNA sequencing.Methods Rats were randomly divided into normal group,model group,electroacupuncture group,and diazepam group.A rat model of anxiety disorder was prepared using chronic restraint stress method.During the modeling period of the electroacupuncture group,simultaneous"Zusanli"acupoint electroacupuncture intervention was performed for 30 minutes each time,once a day,for 21 days.The diazepam group received daily gavage of diazepam for a total of 21 days.After the completion of modeling,open field experiments and elevated cross maze experiments were conducted to observe the behavior of rats.Subsequently,pathological staining was performed to observe the pathological changes in the hippocampus and colon of rats.Metabolomics detection of changes in metabolites in the hippocampus of rats.16S rRNA and short chain fatty acid analysis were used to detect changes in gut microbiota and short chain fatty acids in rats.Western blot detection of Occludin in the colon and TLR4,NF-κB P65 and NLRP3 in the hippocampus of rats.Immunofluorescence detection of IBA-1,NLRP3,and IL-1β in the hippocampus Protein expression.Result The results of the open field experiment showed that compared with the normal group,the total activity distance(P<0.001),central area activity distance(P<0.01),and average velocity(P<0.01)of the model group decreased.Compared with the model group,the total activity distance(P<0.05,P<0.001),central area activity distance(P<0.05,P<0.01),and average velocity(P<0.05,P<0.01)of the electroacupuncture group and diazepam group all increased.The results of the elevated cross maze experiment showed that compared with the normal group,the model group had a decrease in OE%(P<0.001)and OT%(P<0.001).Compared with the model group,both the electroacupuncture group and the diazepam group could increase OE%(P<0.05,P<0.001)and OT%(P<0.01,P<0.001).The HE staining results of the hippocampus showed that the CA1 area of the hippocampus in the normal group rats showed clear and hierarchical structures in various regions of the hippocampus.In the hippocampus of the model group,a small amount of neural cell nuclei in the CA1 area were observed to be wrinkled and deeply stained,with unclear cell boundaries and irregular arrangement,and the cytoplasm was vacuolate.The intervention of electroacupuncture and diazepam can alleviate the above pathological phenomena to varying degrees,respectively;The results of hippocampal metabolomics showed that electroacupuncture can improve hippocampal metabolic disorders caused by modeling,mainly involving taurine and low taurine metabolism,cysteine and methionine metabolism,and regulation of glycine,serine,and threonine metabolic pathways;The results of 16S rRNA sequencing and short chain fatty acid detection showed that electroacupuncture can improve the disturbance of intestinal microbiota caused by modeling,and can regulate serum LPS and levels of butyric acid,caproic acid,and valeric acid.HE staining and Western blot results showed that the model group had pathological damage to the intestine,and compared with the normal group,the expression of Occludin in the colon of the model group decreased(P<0.05).However,the intervention of electroacupuncture and diazepam could improve the pathological damage of the colon and upregulate the expression of Occludin(P<0.05,P<0.05).The immunofluorescence results showed that compared with the normal group,the expression levels of IBA-1,NLRP3,and IL-1β in the hippocampus of the model group increased(P<0.05,P<0.01,P<0.01),while compared with the model group,the electroacupuncture group and diazepam group could reduce the expression levels of IBA-1(P<0.05,P<0.05),NLRP3(P<0.05,P<0.05),and IL-1β(P<0.05,P<0.05).Western blot results showed that compared with the normal group,the expression levels of TLR4,NF-κB P65,and NLRP3 proteins in the hippocampus of the model group increased(P<0.05,P<0.001,P<0.05).Compared with the model group,the electroacupuncture group and diazepam group were able to downregulate the expression levels of NF-κB P65(P<0.01,P<0.001)and NLRP3(P<0.05,P<0.05)proteins.Conclusion The anxiolytic of electroacupuncture involves the regulation of the"microbiota-gut-brain"axis.
9.Visualization of Brain Abnormal β-Amyloid Deposition in Alzheimer's Disease Based on 18F-Florbetaben PET Imaging
Huamei LIN ; Yunhao YANG ; Jiaying LU ; Zhengwei ZHANG ; Shufen CHEN ; Jingjie GE ; Yihui GUAN ; Chuantao ZUO
Chinese Journal of Medical Imaging 2024;32(5):420-425
Purpose To investigate the characteristics of 18F-Florbetaben(18F-FBB)β-amyloid(Aβ)PET imaging in different brain regions of Alzheimer's disease(AD)patients with different degrees of cognitive impairment,and to explore the correlation between Aβ deposition and cognitive dysfunction.Materials and Methods A total of eighteen patients with a clinical diagnosis of probable AD from August 2022 to October 2023 were retrospectively included in Huashan Hospital.All patients had Aβ abnormal deposition in the brain as confirmed by 18F-FBB PET imaging.According to the severity of symptoms,they were divided into the AD-induced mild cognitive impairment(MCI)group(8 cases)and the dementia group(10 cases).In addition,12 healthy controls were included.First,the standardized uptake value ratio of abnormal Aβ deposition in the frontal lobe,lateral parietal lobe,lateral temporal lobe,anterior and posterior cingulate gyrus,and compound cortex was semi-quantitatively calculated and compared among the three groups based on the subjects'brain MRI and automated anatomical labeling template.The correlation between the degree of Aβ deposition in the brains of AD patients and cognitive scale scores(mini-mental state examination,Montreal cognitive assessment)was then further analyzed.Results The standardized uptake value ratio values of Aβabnormal deposition in the frontal lobe,lateral temporal lobe,lateral parietal lobe,anterior and posterior cingulate cortex and compound cortex in the AD-induced MCI and dementia groups were significantly higher than those in the healthy controls(t=7.442-9.151,all P<0.05).However,there was no significant difference in the standardized uptake value ratio values of Aβ abnormal deposition in the above brain regions between the MCI and dementia groups(t=0.312-0.996,all P>0.05).In addition,there was no significant correlation between the degree of Aβ deposition in the brain and the cognitive scale scores(mini-mental state examination,Montreal cognitive assessment)in the AD-induced MCI and dementia groups(r=-0.049-0.050,all P>0.05).Conclusion Aβ deposition in the brains of AD-induced MCI and dementia is significantly higher than in the healthy controls.However,Aβ deposition cannot identify AD patients with different degrees of cognitive impairment,reflecting that Aβ deposition has certain limitations in assessing the severity of clinical symptoms of AD.
10.Establishment and clinical verification of brain template for analyzing 11C-CFT PET imaging data
Chengfeng JIANG ; Ping WU ; Jingjie GE ; Zhemin HUANG ; Jianfei XIAO ; Yunhao YANG ; Xiuming LI ; Qian XU ; Huiwei ZHANG ; Yihui GUAN ; Chuantao ZUO
Chinese Journal of Nuclear Medicine and Molecular Imaging 2023;43(4):216-220
Objective:To establish standard spatial brain template and ROIs template of 11C-methyl- N-2β-carbomethoxy-3β-(4-fluorophenyl)tropane (CFT) PET images for automated quantitative analysis of dopamine transporter (DAT) distribution. Methods:From May 2014 to December 2015, 11C-CFT PET and MRI T 1 brain images of 16 healthy volunteers (3 males, 13 females; age (63.3±6.9) years) from Huashan Hospital, Fudan University were co-registered and smoothed using statistical parametric mapping(SPM)5 software based on MATLAB to create a standard spatial brain template. The ROIs template was established by ScAnVp procedures. These templates were clinically verified by using 11C-CFT PET images of 37 healthy volunteers (23 males, 14 females; age (61.7±7.1) years), 32 Parkinson′s disease (PD) patients (20 males, 12 females; age (61.1±5.4) years), 10 multiple system atrophy with predominant parkinsonism (MSA-P) patients (7 males, 3 females; age (60.8±7.1) years) and 10 progressive supranuclear palsy (PSP) patients (5 males, 5 females; age (58.4±6.1) years) from Huashan Hospital, Fudan University between January 2014 and March 2019. One-way analysis of variance was used to analyze data. Results:Based on the 11C-CFT PET images and MRI T 1 images of healthy volunteers, a standard spatial brain template for normalization of 11C-CFT PET images was created. The ROIs template was established including seven regions: bilateral caudate, anterior putamen, posterior putamen (along the long axis) and the occipital cortex. The ROIs template was accurately aligned in each verification group. The normal reference values of semi-quantitative DAT distribution in caudate, anterior putamen and posterior putamen were obtained (1.84±0.13, 2.18±0.16, 1.77±0.11). The semi-quantitative values of 11C-CFT uptake in each ROI in patients were significantly lower than those in healthy volunteers ( F values: 49.79-283.83, all P<0.05). Conclusion:The established brain templates with accurate spatial alignment for 11C-CFT image analysis can provide foundational tools for the application of 11C-CFT PET imaging in clinical practice and scientific research.

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