1.Impact of bladder volume on dosimetry of CTV and OAR in localized prostate cancer treated with proton therapy
Danni WANG ; Huan LI ; Cheng XU ; Wendong FAN ; Mei CHEN ; Xiaofang QIAN ; Dawei QIN ; Chensheng SHI ; Ruozhui ZHAO ; Weixiang QI ; Qiyun HUANG ; Jiayi CHEN ; Lu CAO
Chinese Journal of Radiation Oncology 2024;33(6):524-531
Objective:To evaluate the impact of bladder volume on dosimetric parameters of clinical target volume (CTV) and organs at risk (OAR) of intensity modulated proton therapy (IMPT) for localized prostate cancer during the treatment planning and daily treatment.Methods:Clinical data of 25 patients with localized prostate cancer admitted to Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine from November 2021 to June 2022 and enrolled in the "Proton Therapy System" (SAPT-PS-01) registered clinical trial were retrospectively analyzed. All patients were male and the median age was 72 years old. A total of 30 sets of IMPT plans were obtained. Based on the planning CT (30 sets) and weekly verification CT during treatment (172 sets), bladder volume, CTV and OAR dose parameters were collected. Spearman correlation analysis was used to evaluate the correlation between bladder volume in CT and the dosimetric parameters of CTV and OAR during IMPT plans, and Wilcoxon-Mann-Whitney test was adopted to compare the dosimetric parameters of CTV and OAR among different bladder volume change groups.Results:The V 95% of CTV1 and CTV2 were both 100.0%±0.0% in IMPT plans. Bladder volume was significantly negatively correlated with D mean, V 70 Gy(RBE), V 60 Gy(RBE), V 50 Gy(RBE), V 40 Gy(RBE) of the bladder ( P<0.001, 0.003, <0.001, <0.001,<0.001), and D mean, V 50 Gy(RBE) of the small intestine (both P<0.001). During treatment, bladder D mean, V 70 Gy(RBE), V 60 Gy(RBE), V 50 Gy(RBE), V 40 Gy(RBE)( P<0.001, 0.001, <0.001, <0.001, <0.001), rectal D mean, V 50 Gy(RBE), V 40 Gy(RBE) (all P<0.001), small intestine D mean, V 50 Gy (RBE) (both P<0.001) of patients with bladder volume increase >20% compared to baseline were significantly decreased compared to those in IMPT plans. But CTV1 V 100%, and CTV2 V 95% were significantly decreased too( P=0.029, 0.020). In the bladder volume decreased>20% patients, the D mean, V 70 Gy(RBE), V 60 Gy(RBE), V 50 Gy(RBE), V 40 Gy(RBE) of the bladder were significantly increased compared to those in IMPT plans (all P<0.001). However, a bladder volume reduction of ≤20% and increase of ≤20% from baseline had no significant impact on CTV and OAR dosimetric parameters during treatment. Conclusions:For patients with localized prostate cancer undergoing proton therapy, a certain bladder volume should be ensured during planning CT scans. During the daily treatment, the bladder volume should be maintained between 80%-120% of the baseline level to ensure CTV coverage and good dose sparing to OAR.
2. Mechanism of nitidine chloride inducing apoptosis of cervical cancer cells by inhibiting p53 ubiquitination degradation
Zhong-Xiu SHI ; Yong HUANG ; Huan-Huan ZHAO ; Lin-Sen YANG ; Yong-Bin LIU ; Cheng-Cheng WANG ; Wei LI
Chinese Pharmacological Bulletin 2023;39(10):1891-1899
Aim To investigate the effect of nitidine chloride (NC) on the apoptosis of cervical cancer cells and its mechanism. Methods Cervical cancer cell lines HeLa and SiHa were selected as subjects. The cytotoxicity of NC and its inhibitory effect on cell growth were detected by CCK-8 assay and clone formation assay. The effect of NC on the apoptosis of cervical cancer cells was detected by TUNEL assay, and the expression of apoptosis-related proteins was detected by Western blot. The effects of NC on the interaction between p53 and E6AP protein, the level of p53 ubiquitination modification and the stability of p53 protein in cervical cancer cells were analyzed by immunoprecipi-tation assay, ubiquitination assay and Western blot assay. Results NC could significantly inhibit the proliferation and induce apoptosis of cervical cancer cells. NC could inhibit the interaction between tumor suppressor protein p53 and E6AP in cervical cancer cells, reduce the level of p53 ubiquitination modification, delay the degradation of p53 and increase the expression level of p53 protein. Conclusions NC can inhibit the ubiquitination and degradation of p53, improve the expression level of p53 protein, restore its tumor suppressor function, and thus play an anti -cervical cancer role.
4.Application of pathway nursing combined with multimodal exercise intervention in patients with tumor -associated sarcopenia under multi -disciplinary team
Huan DUAN ; Jia HUO ; Fengxia CHEN ; Linwei LI ; Xiuqing PAN ; Xinjie CHENG ; Na SHI
Chinese Journal of Modern Nursing 2023;29(17):2320-2325
Objective:To explore the application effect of pathway nursing combined with multimodal exercise intervention in patients with tumor-associated sarcopenia under multi-disciplinary team.Methods:Using the convenient sampling method, a total of 120 patients with tumor-associated sarcopenia who visited Cancer Center of Henan Provincial People 's Hospital from January 2020 to December 2021 were selected as the research objects. They were divided into the observation group ( n=60) and the control group ( n=60) according to the random number table method. The control group received routine nursing care, while the observation group received multi-disciplinary team pathway nursing combined with multimodal exercise. Skeletal Muscle Mass Index (SMI) , Hand Grip Strength (HGS) , daily walking speed, Cancer Fatigue Scale (CFS) and Irritability, Depression and Anxiety Scale (IDA) scores were compared and analyzed between the two groups. Results:After 4 weeks of intervention, HGS and daily walking speed in the observation group were higher than those in the control group, and the differences were statistically significant ( P<0.05) . After 4 weeks of intervention, the total score of CFS in the observation group was lower than that in the control group, and the scores of physical fatigue, emotional fatigue and cognitive fatigue in the observation group were lower than those in the control group, and the differences were statistically significant ( P<0.05) . After 4 weeks of intervention, the total IDA score of the observation group was lower than that of the control group, and the scores of anxiety, depression, extroversion and introversion stimulation were lower than those of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:Multi-disciplinary team pathway care combined with multimodal exercise can improve the physical fitness of patients with tumor-associated sarcopenia, increase the level of physical activity, relieve fatigue and reduce negative emotions such as anxiety, depression and irritation.
5.Mechanism of BCL2L2-PABPN1 expression induced by sodium arsenite and its metabolites in 16HBE cells
SHI Ya YIN Jin yao WU Jiang JIANG Cheng lan ZHAO Rui huan ZHOU Qian HE Yue feng
China Occupational Medicine 2022;49(05):522-
Objective - - (BCL2L2)- ( )
To investigate the differential expression of the fusion gene BCL 2 like protein 2 poly A
(PABPN1) ( )
binding protein nuclear 1 induced by sodium arsenite SA and its methylated metabolites in 16HBE cells and the
Methods ) ,
related mechanism. i The 16HBE cells exposed to SA at concentrations of 1.5 3.0 and 4.5 µmol/L were set as
-, - -
low medium and high dose arsenic exposure groups. The 16HBE cells exposed to 4.5 µmol/L monomethylarsonic acid
( ), ( ) ,
MMA dimethylarsonic acid DMA and SA were set as MMA group DMA group and SA group. The 16HBE cells without
, BCL2L2-PABPN1
toxic stimulation were set as control group. After the cells were cultured for 48 hours the expression of was
- ( - ) ) ( )
detected by quantitative real time polymerase chain reaction qRT PCR . ii Two small interfering RNA siRNA silencing
基金项目:国家自然科学基金( ); 年云南省科技厅昆明医科大学应用基础研究联合专项面上项目
82160607 2021
( )
202101AY070001-054
作者简介:施雅( —),女,在读大学本科生,主要从事劳动卫生与环境卫生学研究;尹锦瑶( —),女,在读劳动卫生与环境卫
2001 1995
生学硕士研究生,主要从事劳动卫生与环境卫生学研究;施雅和尹锦瑶为共同第一作者
通讯作者:何越峰教授,博士研究生导师,- :
E mail heyuefeng@kmmu.edu.cn中国职业医学 年 月第 卷第 期 , , , · ·
2022 10 49 5 Chin Occup Med October 2022 Vol.49 No.5 523
BCL2L2-PABPN1, -
fragments were designed and transfected into 16HBE cells to knockdown which were set as siRNA 1 group
- - BCL2L2-PABPN1
and siRNA 2 group. Non transfected control group without knockdown of transfection was set up. After
, BCL2L2-PABPN1 -
culturing for 48 hours the expression level of in the three groups of cells was detected by qRT PCR. The cell
-
survival rate and early apoptosis rate were detected by MTS method and JC 1 mitochondrial membrane potential detection
, ( ) ,
method respectively. The apoptosis was detected by Hoechest33342/propidium iodide PI double staining and the expression
- Results )
level of P53 signaling pathway related proteins was detected by Western blotting. i The relative expression of
BCL2L2-PABPN1 (P ) BCL2L2-
in 16HBE cells increased with the increasing SA doses <0.01 . The relative expression of
PABPN1 - , - -
in high dose arsenic exposure was higher than that in control group low dose and medium dose arsenic exposure
( P ) BCL2L2-PABPN1 ,
groups all <0.05 . The relative expression of in SA group was higher than those in control group MMA
( P ) BCL2L2-PABPN1
group and DMA group all <0.05 . The relative expression of showed no significant difference between
, ( P ) ) BCL2L2-PABPN1
control group MMA group and DMA group all >0.05 . ii The relative expression levels of and cell
- - - ( P )
survival rate in siRNA 1 group and siRNA 2 group were lower than those in non transfected control group all <0.05 .
, (P )
However there was no significant difference in the early apoptosis rate among the three groups >0.05 . The results of
-
Hoechest33342/PI double staining showed that the number of nuclear shrinkage and early apoptotic cells in siRNA 1 group and
- - , -
siRNA 2 group was higher than that in non transfected control group. The relative protein expression levels of P53 phospho
, - - , - - ( P )
p53 BCL 2 associated death promoter P21 and cytochrome C in siRNA 1 group and siRNA 2 group were higher all <0.05 ,
- - P
and the relative protein expression levels of P53 up regulated modulator of apoptosis were lower (all <0.05), when compared
- Conclusion
with the non transfected control group. SA may block the apoptosis of 16HBE cells by inducing the expression of
BCL2L2-PABPN1
fusion gene . The mechanism may be related to the activation of P53 signaling pathway. The SA methylated
BCL2L2-PABPN1 BCL2L2-PABPN1 -
metabolites MMD and DMA had no effect on the expression of . may affect anti apoptosis
BCL2L2 PABPN1
through affecting the synergistic effect of and genes.
6.Analysis of the Risk Factors for Hemorrhagic Cystitis after Hematopoietic Stem Cell Transplantation.
Chun-Hong SUN ; Xiao-Ning WANG ; Min-Na LUO ; Cai-Li GUO ; Shi-Huan QI ; Bei-Rong ZHANG ; Fang WANG ; Huan ZHANG ; Peng-Cheng HE
Journal of Experimental Hematology 2021;29(2):610-614
OBJECTIVE:
To analyze the risk factors affecting hemorrhagic cystitis(HC) after allogeneic hematopoietic stem cell transplantation(allo-HSCT).
METHODS:
The clinical data of 153 patients underwent allogeneic hematopoietic stem cell transplantation in the First Affiliated Hospital of Xi'an Jiaotong University from January 2010 to December 2018 were selected and retrospectively analyzed. The incidence, median time and treatment outcome of HC should be observed. Multivariate analysis was used to observe the risk factors of HC in patients, including sex, age, diagnosis, disease status before transplantation, transplantation type, ATG and CTX in the pretreatment scheme, stem cell source, neutrophil and platelet implantation time; CMV, EBV and BKV infection, and acute graft-versus-host disease(aGVHD).
RESULTS:
Among 153 patients underwent allogeneic hematopoietic stem cell transplantation, 25 (16.34%) patients had HC, the median occurance time was 31 days, all patients achieved complete remission after treatment, no bladder irritation and bladder contracture were left. The results of univariate and multivariate Logistic regression analysis showed that the type of transplantation, ATG, CMV viremia before treatment, aGVHD (r=1.036, 3.234, 3.298 and 2.817, respectively) were the independent risk factors of HC.
CONCLUSION
The urinary BKV detections in the patients with HC are positive, mainly occured during the period from day +13 to days +56. HLA haplotype, pretreatment including ATG, and CMV viremia, and aGVHD are the independent risk factors for HC after allo-HSCT.
Cystitis/etiology*
;
Graft vs Host Disease
;
Hematopoietic Stem Cell Transplantation/adverse effects*
;
Humans
;
Retrospective Studies
;
Risk Factors
7.Effect of electroacupuncture on serum melatonin and dopamine in aged insomnia.
Xiao-Qiu WANG ; Shan QIN ; Wen-Zhong WU ; Cheng-Yong LIU ; Hong-Tao SHANG ; Qing-Yun WAN ; Ya-Nan ZHAO ; Han-Qing XI ; Shi-Yu ZHENG ; Jia-Huan LI ; Yao WANG
Chinese Acupuncture & Moxibustion 2021;41(5):501-504
OBJECTIVE:
To observe the clinical effect of electroacupuncture (EA) on aged insomnia, and explore its possible mechanism.
METHODS:
A total of 60 patients with aged insomnia were randomly divided into an EA group (30 cases) and a sham EA group (30 cases, 1 case dropped off). The patients in the EA group were treated with acupuncture at Baihui (GV 20), Yintang (GV 29), Shenmen (HT 7), Sanyinjiao (SP 6), Xinshu (BL 15) and Shenshu (BL 23), and EA was used at Baihui (GV 20) and Yintang (GV 29), with intermittent wave, 2 Hz in frequency. In the sham EA group, the acupoints and the EA connection acupoints were the same as those in the EA group, 2-3 mm in depth, but no current was connected. The intervention was given 30 min each time, once every other day, 3 times a week for 4 weeks in the both groups. Before and after treatment, the Pittsburgh sleep quality index (PSQI) and Montreal cognitive assessment (MoCA) scale were used to assess sleep quality and cognitive function, and serum melatonin (MT) and dopamine (DA) levels were detected.
RESULTS:
After treatment, the total score and sub-item scores of PSQI in the EA group were lower than those before treatment (
CONCLUSION
Electroacupuncture can improve sleep quality and cognitive function in aged insomnia patients, and its mechanism may be related to regulating serum MT and DA levels.
Acupuncture Points
;
Aged
;
Dopamine
;
Electroacupuncture
;
Humans
;
Melatonin
;
Sleep Initiation and Maintenance Disorders/therapy*
9.Pharmacodynamics and intestinal flora research on different processed products of Puerariae Lobatae Radix and Puerariae Thomsonii Radix.
Ling-Yun ZHONG ; Xiao-Yan DENG ; Yi HUANG ; Jing-Jing LIAO ; Wei-Feng ZHU ; Huan YU ; Shi-Cheng ZHOU ; Rui-Lin CHEN
China Journal of Chinese Materia Medica 2021;46(17):4403-4409
This study aims to explore the pharmacodynamic differences of Puerariae Lobatae Radix(PLR), Puerariae Thomsonii Radix(PTR) and their different processed products and the influences of these medical materials on the diversity of intestinal flora. The Sennae Folium-induced diarrhea model, streptozotocin(STZ)-induced diabetes model and L-nitro-arginine methyl ester(L-NAME)-induced hypertension model were used to compare the pharmacodynamic differences in anti-diarrhea, blood glucose reduction and blood pressure lowering among raw, roasted and vinegar-processed PLR and PTR. The effects of raw and processed PLR and PTR on intestinal flora diversity of rats were evaluated by 16 S rDNA high-throughput sequencing. The roasted PLR and PTR performed better in anti-diarrhea, especially the former. PLR and its processed products all presented the efficacy of reducing blood glucose, and the vinegar-processed PLR was the most outstanding. The raw PTR was not that effective in reducing blood glucose, whereas its efficacy was improved after roasting and vinegar processing. Both PLR and PTR were capable of lowering blood pressure to a certain extent, and PLR is superior to PTR in this aspect. Further, the vinegar-processed PLR showed the best effect. The diversity of intestinal flora was different among rats to which different products of PLR and PTR were administered. The roasted PLR led to the highest abundance of Lactobacillus, which was closely related to its best antidiarrheal effect. The highest abilities of vinegar-processed PLR to lower blood glucose and blood pressure were associated with the high abundance of Blautia and Prevotella_9. This study lays a foundation for elucidating the processing mechanisms of PLR and PTR and provides a basis for their further development and application.
Animals
;
Drugs, Chinese Herbal
;
Gastrointestinal Microbiome
;
Plant Roots
;
Pueraria
;
Rats
10.Quality evaluation of Aralia taibaiensis based on spectrum-activity relationship.
Huan LI ; Bing-Tao ZHAI ; Yu FAN ; Jun-Bo ZOU ; Xiao-Fei ZHANG ; Jiang-Xue CHENG ; Ya-Jun SHI ; Dong-Yan GUO
China Journal of Chinese Materia Medica 2021;46(18):4757-4764
A spectrum-activity relationship is established with high performance liquid chromatography(HPLC) fingerprints and the in vitro antioxidant activity to improve the quality evaluation system of Aralia taibaiensis. The HPLC profiles of 12 batches of samples were collected, and the similarity evaluation, heat map analysis and principal component analysis were conducted for the chemometric study of the fingerprint data. Combined with grey correlation analysis, the contributions of the common peaks in the fingerprints to the antioxidant activity were clarified, and the important peaks reflecting the efficacy were identified. The results showed that 17 common peaks were found in 12 batches of A. taibaiensis samples, and 6 of them were identified as saponins. Similarity evaluation, heat map analysis and principal component analysis roughly classified the A. taibaiensis herbs into two categories, i.e.,(1) S1-S10, S12 and(2) S11. Twelve batches of samples showed different antioxidant activities in a dose-dependent manner. In particular, S9 had the strongest antioxidant activity, while S11 was the weakest in antioxidant capacity, which was basically consistent with the overall score results. The results of grey correlation analysis demonstrated that the 17 common peaks scavenged DPPH radicals in the following order: X_3>X_(17)>X_4>X_8>X_7>X_(13)>X_2>X_6>X_(11)>X_(10)>X_(16)>X_(12)>X_9>X_5>X_(14)>X_1>X_(15), and scavenged ABTS radicals in the order of X_4>X_3>X_7>X_8>X_2>X_(17)>X_(13)>X_6>X_(16)>X_(11)>X_5>X_(12)>X_(10)>X_9>X_(14)>X_1>X_(15). Among them, X_3, X_4, X_7(araloside C), X_8 and X_(17) were the important peaks reflecting the efficacy of A. taibaiensis, which were basically consistent with those contained in the principal component 1. In this study, the correlation between the HPLC fingerprints of 12 batches of A. taibaiensis and its antioxidant activity provides a reference for the Q-marker screening and quality control of A. taibaiensis.
Antioxidants
;
Aralia
;
Chromatography, High Pressure Liquid
;
Drugs, Chinese Herbal
;
Saponins

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