1.Analysis of the burden of diabetes attributed to metabolic factors from 1990 to 2019
Zhen TANG ; Yujin XIE ; Xinxiang GUO ; Huijuan LIU ; Rui GUAN ; Feng ZHU ; Haijing LI ; Zhongnan XIAO ; Yu ZHONG
Shanghai Journal of Preventive Medicine 2024;36(10):991-996
ObjectiveTo analyze the long-term trends of the disease burden of diabetes attributed to metabolic factors in China from 1990 to 2019, and provide scientific recommendations for diabetes prevention and control in China. MethodsDescriptive analysis was conducted on the disease burden data of diabetes attributed to metabolic factors in China from 1990 to 2019, obtained from GBD 2019, encompassing death form diabetes, disability-adjusted life years (DALY), years of life lost (YLL), and years lived with disability (YLD). Joinpoint regression models were employed to analyze the long-term trends in mortality and DALY rates. Furthermore, the study examined the impact of two metabolic risk factors, high fasting plasma glucose (FPG) levels and high body mass index (BMI) levels, on the disease burden of diabetes. ResultsFrom 1990 to 2019, the overall standardized mortality and DALY rates attributed to metabolic factors for diabetes in the general population in China showed an upward trend, with both average annual percent changes (AAPCs) of 0.1% in the total population. The trend was upward in males with AAPCs of 0.9% and 0.6%, while it was downward in females with AAPCs of -0.4% and -0.3%. As age increased, the disease burden of diabetes attributed to metabolic factors showed an upward trend, with high FPG and high BMI ranking as the top two attributing risk factors. The disease burden of diabetes attributed to metabolic factors was higher in Chinese males than females. ConclusionThe disease burden of diabetes attributed to metabolic factors is increasing among the overall population and particularly among males, while the burden for female is declining. There is a need to increase intervention efforts for males aged 65 and above, provide scientific guidance on residents’ diet and lifestyle habits, and control blood glucose and body weight.
2.Preparation and in vitro property evaluation of β-cyclodextrin-daidzein/PEG_(20000)/Carbomer_(940) nanocrystals.
Yong-Mei GUAN ; Sheng-Hang YE ; Xiang ZHOU ; Zhen-Zhong ZANG ; Li-Hua CHEN ; Wei-Feng ZHU
China Journal of Chinese Materia Medica 2023;48(11):2949-2957
This study aims to improve the solubility and bioavailability of daidzein by preparing the β-cyclodextrin-daidzein/PEG_(20000)/Carbomer_(940) nanocrystals. Specifically, the nanocrystals were prepared with daidzein as a model drug, PEG_(20000), Carbomer_(940), and NaOH as a plasticizer, a gelling agent, and a crosslinking agent, respectively. A two-step method was employed to prepare the β-cyclodextrin-daidzein/PEG_(20000)/Carbomer_(940) nanocystals. First, the insoluble drug daidzein was embedded in β-cyclodextrin to form inclusion complexes, which were then encapsulated in the PEG_(20000)/Carbomer_(940) nanocrystals. The optimal mass fraction of NaOH was determined as 0.8% by the drug release rate, redispersability, SEM morphology, encapsulation rate, and drug loading. The inclusion status of daidzein nanocrystals was determined by Fourier transform infrared spectroscopy(FTIR), thermogravimetric analysis(TGA), and X-ray diffraction(XRD) analysis to verify the feasibility of the preparation. The prepared nanocrystals showed the average Zeta potential of(-30.77±0.15)mV and(-37.47±0.64)mV and the particle sizes of(333.60±3.81)nm and(544.60±7.66)nm before and after daidzein loading, respectively. The irregular distribution of nanocrystals before and after daidzein loading was observed under SEM. The redispersability experiment showed high dispersion efficiency of the nanocrystals. The in vitro dissolution rate of nanocrystals in intestinal fluid was significantly faster than that of daidzein, and followed the first-order drug release kinetic model. XRD, FTIR, and TGA were employed to determine the polycrystalline properties, drug loading, and thermal stability of the nanocrystals before and after drug loading. The nanocrystals loaded with daidzein demonstrated obvious antibacterial effect. The nanocrystals had more significant inhibitory effects on Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa than daidzein because of the improved solubility of daidzein. The prepared nanocrystals can significantly increase the dissolution rate and oral bioavailability of the insoluble drug daidzein.
Sodium Hydroxide
;
Acrylic Resins
;
Escherichia coli
;
Nanoparticles
3.Chronic Toxicity of Triptolide and Ferulic Acid Ethosomes Gel for Percutaneous Administration
Ling TAO ; Dun-yao BAI ; Zhen-zhong ZANG ; Li-hua CHEN ; Zhi-yu GUAN ; Wei-feng ZHU ; Yong-mei GUAN
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(7):95-104
ObjectiveTo investigate the long-term safety of triptolide ferulic acid ethosome gel in percutaneous administration. MethodWe mixed triptolide with ferulic acid to make liposomes gel in different doses and then administrated the gel to SD rats of both sexes with intact skin and damaged skin for 12 weeks. The daily dosages calculated based on triptolide for the low-, middle-, and high-dose groups were 63.75, 127.50, 255.00 μg·kg-1, respectively. The body weight of each rat was measured weekly. The rats were sacrificed in the last week for the determination of serum biochemical parameters and organ indexes as well as the observation of histopathology. The toxicity was assessed based on the body weight and all the parameters and indexes. ResultAfter long-term administration, the body weight and serum biochemical parameters did not show significant difference between the gel-treated groups and the blank group with intact skin, which indicated that the percutaneous administration of triptolide and ferulic acid ethosomes gel was relatively safe. However, the rats in the high-dose group showed sparse hair and were easy to die in the case of unhairing with chloral hydrate at the late stage of the study. Comprared with the female rats with intact skin in the blank control group, the female rats with damaged skin in the middle-dose group showed decreased heart index (P<0.05), which indicated certain cardiotoxicity. Moreover, damage appeared in skin and lung, which may be influeneced by dosage, sex, and skin state. ConclusionFerulic acid in combination with triptolide is relatively safe for percutaneous administration, whereas there are some risks of skin and lung damage in the case of long-term administration. Individualized administration scheme should be developed according to liver and kidney function and skin conditons to ensure the safety of clinical medication.
4.Transcriptomic analysis of the ΔPaLoc mutant of Clostridioides difficile and verification of its toxicity.
Gu Zhen CUI ; Qing Shuai ZHOU ; Qin Quan CHENG ; Feng Qin RAO ; Yu Mei CHENG ; Yan TIAN ; Ting ZHANG ; Zheng Hong CHEN ; Jian LIAO ; Zhi Zhong GUAN ; Xiao Lan QI ; Qi WU ; Wei HONG
Chinese Journal of Preventive Medicine 2022;56(5):601-608
Objective: Comparative analyses of wild-type Clostridioides difficile 630 (Cd630) strain and pathogenicity locus (PaLoc) knockout mutant (ΔPaLoc) by using RNA-seq technology. Analysis of differential expression of Cd630 wild-type strain and ΔPaLoc mutant strain and measurement of its cellular virulence changes. Lay the foundation for the construction of an toxin-attenuated vaccine strain against Clostridioides difficile. Methods: Analysis of Cd630 and ΔPaLoc mutant strains using high-throughput sequencing (RNA-seq). Clustering differentially expressed genes and screening differentially expressed genes by DESeq software. Further analysis of differential genes using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment. Finally, cytotoxicity assays of ΔPaLoc and Cd630 strains were performed in the African monkey kidney epithelial cell (Vero) and the human colonic cell (Caco-2) lines. Results: The transcriptome data showed that the ΔPaLoc mutant toxin genes tcdA and tcdB were not transcribed. Compared to the wild-type strain, CD630_36010, CD630_020910,CD630_02080 and cel genes upregulated 17.92,11.40,8.93 and 7.55 fold, respectively. Whereas the hom2 (high serine dehydrogenase), the CD630_15810 (spore-forming protein), CD630_23230 (zinc-binding dehydrogenase) and CD630_23240 (galactitol 1-phosphate 5-dehydrogenase) genes were down-regulated by 0.06, 0.075, 0.133 and 0.183 fold, respectively. The GO and KEGG enrichment analyses showed that the differentially transcribed genes in ΔPaLoc were enriched in the density-sensing system, ABC transport system, two-component system, phosphotransferase (PTS) system, and sugar metabolism pathway, as well as vancomycin resistance-related pathways. Cytotoxicity assays showed that the ΔPaLoc mutant strain lost its virulence to Vero and Caco-2 cells compared to the wild-type Cd630 strain. Conclusion: Transcriptional sequencing analysis of the Cd630 and ΔPaLoc mutant strains showed that the toxin genes were not transcribed. Those other differential genes could provide a reference for further studies on the physiological and biochemical properties of the ΔPaLoc mutant strain. Cytotoxicity assays confirmed that the ΔPaLoc mutant lost virulence to Vero and Caco-2 cells, thus laying the foundation for constructing an toxin-attenuated vaccine strain against C. difficile.
Bacterial Proteins/metabolism*
;
Bacterial Toxins/metabolism*
;
Caco-2 Cells
;
Clostridioides
;
Clostridioides difficile/genetics*
;
Humans
;
Oxidoreductases/metabolism*
;
Transcriptome
;
Vaccines, Attenuated
5.Drying effect of Chinese medicinal pills based on new spiral vibration drying technology.
Zhen-Zhong ZANG ; Xiao-Mei ZHOU ; Yong-Mei GUAN ; Zhen-Feng WU ; Xue-Cheng WANG ; Yuan-Hui LI ; Bing YI ; Mei-Chen WANG ; Ming YANG ; Zheng-Gen LIAO
China Journal of Chinese Materia Medica 2022;47(5):1237-1242
The present study explored the drying effect of new spiral vibration drying technology on Chinese medicinal pills with Liuwei Dihuang Pills, Zhuanggu Guanjie Pills, and Muxiang Shunqi Pills as model drugs. With the drying uniformity, drying time, energy consumption, pill split, dissolution time, and change of index components as evaluation indicators, the drying effect of spiral vibration drying technology on model drugs was evaluated and compared with traditional drying methods, such as hot air drying and vacuum drying in the oven. The dynamic changes of moisture in Liuwei Dihuang Pills with different drying time were investigated. Compared with the traditional drying methods in the oven(hot air drying and vacuum drying) at 80 ℃, the spiral vibration drying only took 80 min, shortened by 80%, with 10%-13% energy consumed. The results showed that the moisture of Liuwei Dihuang Pills was negatively related to the drying time. By virtue of multi-layer countercurrent drying and super resonant fluidization techniques, the new spiral vibration drying technology can significantly improve the drying quality of Chinese medicinal pills, improve the drying efficiency, and enhance the manufacturing capacity of Chinese medicinal pills. This study is expected to provide references for the innovation and development of new drying technology of Chinese medicinal pills.
China
;
Desiccation
;
Physical Therapy Modalities
;
Technology
;
Vibration
6.Quality value transfer of material benchmark of Guizhi Jia Gegen Decoction.
Xin-Hao WAN ; Wei-Feng ZHU ; Li-Na YANG ; Ling-Yun ZHONG ; Mei XIA ; Zhe LI ; Li-Hua CHEN ; Zhen-Zhong ZANG ; Yong-Mei GUAN
China Journal of Chinese Materia Medica 2022;47(9):2430-2439
A total of 15 batches of the substance reference of Guizhi Jia Gegen Decoction(GZGGD) were prepared and the characteristic fingerprints of them were established. Furthermore, the similarity of the fingerprints and peak attributes were explored. The extraction rate, and the content and the transfer rate ranges of the index components, puerarin, paeoniflorin, liquiritin, and ammonium glycyrrhizate were determined for the analysis of the quality value transfer. The result demonstrated that the fingerprints of the 15 batches of the samples showed high similarity(>0.99). A total of 15 characteristic peaks were identified from the fingerprints, with 10 for Puerariae Lobatae Radix, 1 for Cinnamomi Ramulus, 2 for Paeoniae Radix Alba, and 2 for Glycyrrhizae Radix et Rhizoma. The content of puerarin was 11.05-18.35 mg·g~(-1) and the average transfer rate was 21.27%-39.49%. The corresponding figures were 7.95-10.90 mg·g~(-1) and 23.28%-43.23% for paeoniflorin, 3.25-4.95 mg·g~(-1) and 32.31%-61.27% for ammonium glycyrrhizate, and 3.65-5.80 mg·g~(-1) and 14.57%-27.05% for liquiritin. The extraction rate of the 15 batches of samples was in the range of 16.85%-21.78%. In this paper, the quality value transfer of the substance reference of GZGGD was analyzed based on characteristic fingerprint, content of index components, and the extraction rate. This study is expected to lay a basis for the quality control and further development of GZGGD.
Ammonium Compounds
;
Benchmarking
;
Chromatography, High Pressure Liquid
;
Drugs, Chinese Herbal
;
Paeonia
7.Research Progress on Pain Relief of Essential Oils of Traditional Chinese Medicine:A Review
Pan XU ; Qian SHEN ; Ming YANG ; Zhen-zhong ZANG ; Li-mei CHEN ; Wei-feng ZHU ; Li-hua CHEN ; Li-li LIU ; Yong-mei GUAN
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(17):211-216
Volatile oil is widely distributed in Chinese medicinal materials with complex chemical components. The main components are terpenes, aromatics, aliphatics, and nitrogen and sulfur containing. It has a variety of pharmacological activities. Such as antibacterial, anti-inflammatory, analgesic, anti-tumor, anti-oxidant, anti-aging and so on. It is widely used in medical and health care, agricultural efficiency enhancement, and daily products. In recent years, there have been a large number of studies on the pain relief of traditional Chinese medicine (TCM) essential oils, but there is no systematic generalization. The author found that the mechanism of TCM essential oils to exert analgesic effects mainly includes regulation of the central nervous system, anti-inflammatory and analgesic, antispasmodic and analgesic effects by consulting Chinese and foreign literatures in recent years, but the exact mechanism needs to be further verified. This article reviews the research progress of TCM essential oil pain relief from the aspects of pain classification, generation, analgesic mechanism and combination of other technologies, in order to provide reference for related research in the future.
8.Obstetric Diseases Responding Specifically to Traditional Chinese Medicine
Jing-shang WANG ; Xiao-wei LIU ; Xin WANG ; Lan-zhong GUO ; Yu-qin LAI ; Jun ZHAO ; Jun-qin HE ; Xue-juan JIANG ; Ying-dong HE ; Zhan LI ; Dong YANG ; Yu-long DING ; Ying WU ; Wei GAO ; Shu-zhen GUO ; Cang ZHANG ; Yong ZHU ; Si-qi GUAN ; Xiao-xiao ZHANG ; Rui-hua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(20):206-218
In recent years, with the change in life style, social environment, and national childbearing policy, the proportion of high-risk pregnant women has increased significantly, triggering the spectrum of obstetric diseases to constantly change, which has brought new challenges to the diagnosis and treatment of obstetrics. Traditional Chinese medicine (TCM) has been proved effective in dealing with a variety of obstetric diseases, and various treatment methods are available, which can serve as alternative means for solving refractory obstetric diseases. However, most obstetric clinicians are currently less aware of the therapeutic effects of TCM, which has significantly hindered its participation in clinical treatment. Therefore, the China Association of Chinese Medicine (CACM) organized the outstanding young obstetricians of TCM and western medicine to discuss 15 obstetric diseases responding specifically to TCM or integrated TCM and western medicine, including hyperemesis gravidarum, threatened abortion, ectopic gestation, cough during pregnancy, pregnancy-induced hypertension syndrome, maternal-fetal ABO incompatibility, postpartum hypogalactia, residual pregnancy tissue in uterine cavity, puerperal infection, pantalgia after childbirth, hematoma/undesirable healing after caesarean section, postpartum urinary retention, ileus after cesarean section, pelvic floor dysfunction, and postnatal depression. The suggestions for their treatment with TCM or integrated TCM and western medicine were also proposed, aiming to provide patients with effective and personalized treatments in clinical practice and improve the diagnosis and treatment effects of obstetric diseases, thus benefiting the public. At the same time, more obstetrical clinicians are expected to understand the therapeutic effects and advantages of TCM and draw on the strengths of both TCM and western, thereby promoting the establishment of an obstetric diagnosis and treatment system with Chinese characteristics.
9.Research Progress in Anti-alcoholic Effect of Puerariae Lobatae Radix
Yong-mei GUAN ; Pan XU ; Qian SHEN ; E JIANG ; Li-hua CHEN ; Wei-feng ZHU ; Wen-ting WU ; Zhen-zhong ZANG
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(2):210-217
With advanced brewing technology and contemporary table culture, alcohol drinking, which can be traced back to Dukang wine in the Xia dynasty, is very common in China. However, excessive alcohol intake can easily cause alcohol liver damage, ranging from abdominal pain and venous thrombosis to severe hypoglycemia and fat embolism, coma shock and even life-threatening cases. Puerariae Lobatae Radix has a cool property and sweet taste, with functions of antipyretic, promoting the secretion of saliva or body fluid, rash and hangover alleviation, and so on. It was first recorded in

Result Analysis
Print
Save
E-mail