1.Zuogui Jiangtang Qinggan Prescription promotes recovery of intestinal mucosal barrier in mice with type 2 diabetes mellitus and nonalcoholic fatty liver disease by improving intestinal flora homeostasis.
Jun-Ju ZOU ; Hong LI ; Min ZHOU ; Qiu-Qing HUANG ; Yong-Jun WU ; Rong YU
China Journal of Chinese Materia Medica 2023;48(2):525-533
		                        		
		                        			
		                        			This study aimed to investigate the recovery effect of Zuogui Jiangtang Qinggan Prescription on intestinal flora homeostasis control and intestinal mucosal barrier in type 2 diabetes mellitus(T2DM) with nonalcoholic fatty liver disease(NAFLD) induced by a high-fat diet. NAFLD was established in MKR transgenic mice(T2DM mice) by a high-fat diet(HFD), and subsequently treated for 8 weeks with Zuogui Jiangtang Qinggan Prescription(7.5, 15 g·kg~(-1)) and metformin(0.067 g·kg~(-1)). Triglyceride and liver function were assessed using serum. The hematoxylin-eosin(HE) staining and Masson staining were used to stain the liver tissue, while HE staining and AB-PAS staining were used to stain the intestine tissue. 16S rRNA sequencing was utilized to track the changes in the intestinal flora of the mice in each group. Polymerase chain reaction(PCR) and immunofluorescence were used to determine the protein and mRNA expression levels of ZO-1, Occludin, and Claudin-1. The results demonstrated that Zuogui Jiangtang Qinggan Prescription increased the body mass of T2DM mice with NAFLD and decreased the hepatic index. It down-regulated the serum biomarkers of liver function and dyslipidemia such as alanine aminotransferase(ALT), aspartate transaminase(AST), and triglycerides(TG), increased insulin sensitivity, and improved glucose tolerance. According to the results of 16S rRNA sequencing, the Zuogui Jiangtang Qinggan Prescription altered the composition and abundance of the intestinal flora, increasing the relative abundances of Muribaculaceae, Lactobacillaceae, Lactobacillus, Akkermansia, and Bacteroidota and decreasing the relative abundances of Lachnospiraceae, Firmicutes, Deslfobacteria, Proteobacteria, and Desulfovibrionaceae. According to the pathological examination of the intestinal mucosa, Zuogui Jiangtang Qinggan Prescritpion increased the expression levels of the tight junction proteins ZO-1, Occludin, and Claudin-1, promoted intestinal mucosa repair, protected intestinal villi, and increased the height of intestinal mucosa villi and the number of goblet cells. By enhancing intestinal mucosal barrier repair and controlling intestinal microbiota homeostasis, Zuogui Jiangtang Qinggan Prescription reduces intestinal mucosal damage induced by T2DM and NAFLD.
		                        		
		                        		
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Non-alcoholic Fatty Liver Disease/metabolism*
		                        			;
		                        		
		                        			Gastrointestinal Microbiome
		                        			;
		                        		
		                        			RNA, Ribosomal, 16S
		                        			;
		                        		
		                        			Diabetes Mellitus, Type 2/metabolism*
		                        			;
		                        		
		                        			Occludin/pharmacology*
		                        			;
		                        		
		                        			Claudin-1/metabolism*
		                        			;
		                        		
		                        			Intestinal Mucosa
		                        			;
		                        		
		                        			Liver
		                        			;
		                        		
		                        			Triglycerides/metabolism*
		                        			;
		                        		
		                        			Diet, High-Fat
		                        			;
		                        		
		                        			Homeostasis
		                        			;
		                        		
		                        			Mice, Inbred C57BL
		                        			
		                        		
		                        	
2.Application characteristics and modern research progress of "bone-approaching" acupuncture.
De-Hui ZOU ; Kai-Xin FENG ; Hong-Wen LIANG ; Xu-Hao TANG ; Shan ZHAO ; Zi-Jian QIU ; Peng-Yong BAI ; Jia-Mu LIU ; Tong LIU
Chinese Acupuncture & Moxibustion 2023;43(9):1094-1098
		                        		
		                        			
		                        			The paper explores the evolution of "bone-approaching" acupuncture, its effect target and mechanism. The concrete operation procedure of "bone-approaching" method is recorded originally in Huangdi Neijing (Inner Canon of Yellow Emperor) as short needling and Shu needling (referring to the category of the five needling technique). The periosteum is the most effective stimulation target of "bone-approaching" acupuncture for analgesia, regaining consciousness and regulating spirit. The "bone-approaching" acupuncture is not only prominently effective on bone bi syndrome, but also has the unique effect on painful, encephalogenic and emotional diseases. The paper summarizes and improves "bone-approaching" acupuncture, i.e. "touching bone surface" with needle tip by slow insertion, "touching bone surface" without pain by swift insertion and "touching bone" with needle body by oblique insertion. It contributes to the inheritance, development and supplementation to the bone needling techniques in Huangdi Neijing and is significant for broadening the clinical application range of acupuncture.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Acupuncture Therapy
		                        			;
		                        		
		                        			Periosteum
		                        			;
		                        		
		                        			Analgesia
		                        			;
		                        		
		                        			Pain Management
		                        			;
		                        		
		                        			Consciousness
		                        			;
		                        		
		                        			Pain
		                        			
		                        		
		                        	
3.Isoliquiritigenin induces HMOX1 and GPX4-mediated ferroptosis in gallbladder cancer cells.
Zeyu WANG ; Weijian LI ; Xue WANG ; Qin ZHU ; Liguo LIU ; Shimei QIU ; Lu ZOU ; Ke LIU ; Guoqiang LI ; Huijie MIAO ; Yang YANG ; Chengkai JIANG ; Yong LIU ; Rong SHAO ; Xu'an WANG ; Yingbin LIU
Chinese Medical Journal 2023;136(18):2210-2220
		                        		
		                        			BACKGROUND:
		                        			Gallbladder cancer (GBC) is the most common malignant tumor of biliary tract. Isoliquiritigenin (ISL) is a natural compound with chalcone structure extracted from the roots of licorice and other plants. Relevant studies have shown that ISL has a strong anti-tumor ability in various types of tumors. However, the research of ISL against GBC has not been reported, which needs to be further investigated.
		                        		
		                        			METHODS:
		                        			The effects of ISL against GBC cells in vitro and in vivo were characterized by cytotoxicity test, RNA-sequencing, quantitative real-time polymerase chain reaction, reactive oxygen species (ROS) detection, lipid peroxidation detection, ferrous ion detection, glutathione disulphide/glutathione (GSSG/GSH) detection, lentivirus transfection, nude mice tumorigenesis experiment and immunohistochemistry.
		                        		
		                        			RESULTS:
		                        			ISL significantly inhibited the proliferation of GBC cells in vitro . The results of transcriptome sequencing and bioinformatics analysis showed that ferroptosis was the main pathway of ISL inhibiting the proliferation of GBC, and HMOX1 and GPX4 were the key molecules of ISL-induced ferroptosis. Knockdown of HMOX1 or overexpression of GPX4 can reduce the sensitivity of GBC cells to ISL-induced ferroptosis and significantly restore the viability of GBC cells. Moreover, ISL significantly reversed the iron content, ROS level, lipid peroxidation level and GSSG/GSH ratio of GBC cells. Finally, ISL significantly inhibited the growth of GBC in vivo and regulated the ferroptosis of GBC by mediating HMOX1 and GPX4 .
		                        		
		                        			CONCLUSION
		                        			ISL induced ferroptosis in GBC mainly by activating p62-Keap1-Nrf2-HMOX1 signaling pathway and down-regulating GPX4 in vitro and in vivo . This evidence may provide a new direction for the treatment of GBC.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Carcinoma in Situ
		                        			;
		                        		
		                        			Chalcones/pharmacology*
		                        			;
		                        		
		                        			Ferroptosis
		                        			;
		                        		
		                        			Gallbladder Neoplasms/genetics*
		                        			;
		                        		
		                        			Glutathione Disulfide
		                        			;
		                        		
		                        			Kelch-Like ECH-Associated Protein 1
		                        			;
		                        		
		                        			Mice, Nude
		                        			;
		                        		
		                        			NF-E2-Related Factor 2/genetics*
		                        			;
		                        		
		                        			Reactive Oxygen Species
		                        			;
		                        		
		                        			Humans
		                        			
		                        		
		                        	
4.Effects of Xihuang Pills on proliferation and apoptosis of prostate cancer LNCaP cells based on AR/m TOR signaling pathway.
Xin-Jun DAI ; Yan LONG ; Bo ZOU ; Li-Tong WU ; Jun-Feng QIU ; Yong-Rong WU ; Zhe DENG ; Yong-Li WANG ; Qing ZHOU ; Xue-Fei TIAN
China Journal of Chinese Materia Medica 2023;48(15):4147-4155
		                        		
		                        			
		                        			Based on the androgen receptor(AR)/mammalian target of rapamycin(mTOR)signaling pathway, the effects of Xihuang Pills-medicated serum on the proliferation and apoptosis of prostate cancer LNCaP cells were investigated. The drug-containing serum of SD rats was prepared by intragastric administration of Xihuang Pills suspension. The effects of low-, medium-, and high-dose Xihuang Pills-containing serum on the in vitro proliferation of LNCaP cells were detected by cell counting kit-8(CCK-8). Flow cytometry was used to detect the apoptosis level of LNCaP cells after intervention with different concentrations of Xihuang Pills. Protein expression of cleaved cysteinyl aspartate-specific proteinase caspase-3(cleaved caspase-3), B-cell lymphoma-2(Bcl-2), and AR as well as the phosphorylation level of mTOR protein were detected by Western blot. The results showed that compared with the blank serum, the drug-medicated serum could blunt the activity of LNCaP cells. Low-, medium-, and high-dose Xihuang Pills-containing serum could significantly increase the cell apoptosis rate, increase the expression of cleaved caspase-3 protein, decrease the expression of Bcl-2 protein, reduce the expression of AR protein, and down-regulate the level of phosphorylated mTOR(p-mTOR). To study the effect of Xihuang Pills on the growth of LNCaP cells in vivo, different doses of Xihuang Pills were used to intervene in the subcutaneous graft model in nude mice inoculated with LNCaP cells. The expression levels of AR, mTOR, p-mTOR, Bcl-2, and cleaved caspase-3 were detected by Western blot. The results showed that the volumes of subcutaneous graft tumor in the low-dose, medium-dose, and high-dose Xihuang Pills groups significantly decreased compared with that in the model group. The weight of subcutaneous transplanted tumor in each group with drug intervention was significantly lower than that in the model group. Compared with the model group, the low-dose, medium-dose, and high-dose Xihuang Pills groups showed increased cleaved caspase-3 protein expression, decreased Bcl-2 and AR protein expression, and reduced p-mTOR protein expression. Further experiments showed that AR agonist R1881 could block the anti-proliferation and pro-apoptotic effects of Xihuang Pills. The mechanism of Xihuang Pills against prostate cancer is related to the inhibition of the AR/mTOR signaling pathway, inhibition of LNCaP cell proliferation, and induction of apoptosis in cancer cells.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Rats
		                        			;
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Caspase 3/metabolism*
		                        			;
		                        		
		                        			Mice, Nude
		                        			;
		                        		
		                        			Cell Line, Tumor
		                        			;
		                        		
		                        			Rats, Sprague-Dawley
		                        			;
		                        		
		                        			Signal Transduction
		                        			;
		                        		
		                        			TOR Serine-Threonine Kinases/metabolism*
		                        			;
		                        		
		                        			Prostatic Neoplasms/pathology*
		                        			;
		                        		
		                        			Cell Proliferation
		                        			;
		                        		
		                        			Apoptosis
		                        			;
		                        		
		                        			Proto-Oncogene Proteins c-bcl-2/metabolism*
		                        			;
		                        		
		                        			Mammals/metabolism*
		                        			
		                        		
		                        	
5.Equol and its enantiomers inhibited urethane-induced lung cancer in mice.
Xue YU ; Yong Qiu ZOU ; Ying WANG ; Ze Kun CHEN ; De Fu MA
Journal of Peking University(Health Sciences) 2022;54(2):244-248
		                        		
		                        			OBJECTIVE:
		                        			To investigate the effects and mechanisms of equol and its enantiomers on urethane-induced lung cancer in mice.
		                        		
		                        			METHODS:
		                        			A total of 120 5-week-old male C57BL/6 mice were randomly divided into 8 groups: lung cancer tumor control group (CG), genistein control group (GCG), low dose racemic equol group (LEG), high dose racemic equol group (HEG), low dose R-equol group (LRE), high dose R-equol group (HRE), low dose S-equol group (LSE) and high dose S-equol group (HSE). Urethane was injected subcutaneously twice a week for 4 weeks to induce lung cancer and then the mice were fed for 4 months. The body weight and food intake of each group were measured and recorded weekly. After the mice were sacrificed, the blood, livers and lungs of the mice were collected. The incidence of lung cancer in each group was recorded. The concentration of serum superoxide dismutase (SOD), malondialdehyde (MDA) and 8-hydroxydeoxygunosine (8-OHdG) were detected by the corresponding kits. Western blotting was used to detect the expression of nuclear factor (erythroid-derived 2)-like 2 (Nrf2) in the livers. Between-group differences in body weight and food intake of the mice were compared using repeated measures ANOVA, and ANOVA for the differences between non-repeated measurements, with post hoc analysis using Tukey's method if there were between-group differences. Comparisons of categorical data were performed by chi-square test, and if there were differences between the groups, the Bonferroni method was used for pairwise comparison.
		                        		
		                        			RESULTS:
		                        			A total of 49 in the 120 mice developed lung cancer. The overall incidence of lung cancer was 40.8%. Compared with the control group, the incidence of lung cancers in each experimental group was lower, and the difference was statistically significant. The incidence of lung cancer in the high-dose experimental group was significantly lower than that in the low-dose experimental group. However, the incidence of lung cancer was similar in the three equol groups and the genistein group at the same dose. Compared with the control group, the high-dose experimental group had higher serum SOD concentration, lower MDA and 8-OHdG concentrations, and the differences were statistically significant. Western blotting analysis showed that the expression levels of Nrf2 protein in the experimental groups were higher than those in the control group except the low-dose racemic equol group, and the Nrf2 protein expression level in the high-dose equol groups was higher than that in the low-dose equol groups.
		                        		
		                        			CONCLUSION
		                        			Racemic equol and its enantiomers mayinhibit lung carcinogenesis through antioxidant effects.
		                        		
		                        		
		                        		
		                        			Animals
		                        			;
		                        		
		                        			Body Weight
		                        			;
		                        		
		                        			Equol
		                        			;
		                        		
		                        			Genistein
		                        			;
		                        		
		                        			Lung Neoplasms/prevention & control*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Mice
		                        			;
		                        		
		                        			Mice, Inbred C57BL
		                        			;
		                        		
		                        			NF-E2-Related Factor 2
		                        			;
		                        		
		                        			Superoxide Dismutase
		                        			;
		                        		
		                        			Urethane/toxicity*
		                        			
		                        		
		                        	
6.Incidence of extrauterine growth retardation and its risk factors in very preterm infants during hospitalization: a multicenter prospective study.
Wei SHEN ; Zhi ZHENG ; Xin-Zhu LIN ; Fan WU ; Qian-Xin TIAN ; Qi-Liang CUI ; Yuan YUAN ; Ling REN ; Jian MAO ; Bi-Zhen SHI ; Yu-Mei WANG ; Ling LIU ; Jing-Hui ZHANG ; Yan-Mei CHANG ; Xiao-Mei TONG ; Yan ZHU ; Rong ZHANG ; Xiu-Zhen YE ; Jing-Jing ZOU ; Huai-Yu LI ; Bao-Yin ZHAO ; Yin-Ping QIU ; Shu-Hua LIU ; Li MA ; Ying XU ; Rui CHENG ; Wen-Li ZHOU ; Hui WU ; Zhi-Yong LIU ; Dong-Mei CHEN ; Jin-Zhi GAO ; Jing LIU ; Ling CHEN ; Cong LI ; Chun-Yan YANG ; Ping XU ; Ya-Yu ZHANG ; Si-Le HU ; Hua MEI ; Zu-Ming YANG ; Zong-Tai FENG ; San-Nan WANG ; Er-Yan MENG ; Li-Hong SHANG ; Fa-Lin XU ; Shao-Ping OU ; Rong JU
Chinese Journal of Contemporary Pediatrics 2022;24(2):132-140
		                        		
		                        			OBJECTIVES:
		                        			To investigate the incidence of extrauterine growth retardation (EUGR) and its risk factors in very preterm infants (VPIs) during hospitalization in China.
		                        		
		                        			METHODS:
		                        			A prospective multicenter study was performed on the medical data of 2 514 VPIs who were hospitalized in the department of neonatology in 28 hospitals from 7 areas of China between September 2019 and December 2020. According to the presence or absence of EUGR based on the evaluation of body weight at the corrected gestational age of 36 weeks or at discharge, the VPIs were classified to two groups: EUGR group (n=1 189) and non-EUGR (n=1 325). The clinical features were compared between the two groups, and the incidence of EUGR and risk factors for EUGR were examined.
		                        		
		                        			RESULTS:
		                        			The incidence of EUGR was 47.30% (1 189/2 514) evaluated by weight. The multivariate logistic regression analysis showed that higher weight growth velocity after regaining birth weight and higher cumulative calorie intake during the first week of hospitalization were protective factors against EUGR (P<0.05), while small-for-gestational-age birth, prolonged time to the initiation of total enteral feeding, prolonged cumulative fasting time, lower breast milk intake before starting human milk fortifiers, prolonged time to the initiation of full fortified feeding, and moderate-to-severe bronchopulmonary dysplasia were risk factors for EUGR (P<0.05).
		                        		
		                        			CONCLUSIONS
		                        			It is crucial to reduce the incidence of EUGR by achieving total enteral feeding as early as possible, strengthening breastfeeding, increasing calorie intake in the first week after birth, improving the velocity of weight gain, and preventing moderate-severe bronchopulmonary dysplasia in VPIs.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Fetal Growth Retardation
		                        			;
		                        		
		                        			Gestational Age
		                        			;
		                        		
		                        			Hospitalization
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Infant, Premature
		                        			;
		                        		
		                        			Infant, Very Low Birth Weight
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Risk Factors
		                        			
		                        		
		                        	
7.Adherence to adjuvant with therapy imatinib in patients with gastrointestinal stromal tumor: a national multi-center cross-sectional study.
Peng ZHANG ; Jun ZHANG ; Bo ZHANG ; Wen Chang YANG ; Jun Bo HU ; Xiao Feng SUN ; Gang ZHAI ; Hao Ran QIAN ; Yong LI ; Hao XU ; Fan FENG ; Xing Ye WU ; He Li LIU ; Hong Jun LIU ; Hai Bo QIU ; Xiao Jun WU ; Yan Bing ZHOU ; Kun Tang SHEN ; You Wei KOU ; Yang FU ; Zhi Gang JIE ; Xiao Ming ZOU ; Hui CAO ; Zhi Dong GAO ; Kai Xiong TAO
Chinese Journal of Gastrointestinal Surgery 2021;24(9):775-782
		                        		
		                        			
		                        			Objective: To analyze the current adherence to imatinib in patients with gastrointestinal stromal tumors (GIST) in China and its influencing factors. Methods: A cross-sectional survey was conducted. Study period: from October 1, 2020 to November 31, 2020. Study subjects: GIST patients taking imatinib who were diagnosed and treated in public tertiary level A general hospitals or oncology hospitals; those who had not been pathologically diagnosed, those who never received imatinib, or those who had taken imatinib in the past but stopped afterwards were excluded. The Questionnaire Star online surgery platform was used to design a questionnaire about the adherence to adjuvant imatinib therapy of Chinese GIST patients. The link of questionnaire was sent through WeChat. The questionnaire contained basic information of patients, medication status and Morisky Medication Adherence Scale. Results: A total of 2162 questionnaires from 31 provinces, autonomous regions, and municipalities were collected, of which 2005 were valid questionnaires, with an effective rate of 92.7%. The survey subjects included 1104 males and 901 females, with a median age of 56 (22-91) years old. Working status: 609 cases (30.4%) in the work unit, 729 cases (36.4%) of retirement, 667 cases of flexible employment or unemployment (33.3%). Education level: 477 cases (23.8%) with bachelor degree or above, 658 cases (32.8%) of high school, 782 cases (39.0%) of elementary or junior high school, 88 cases (4.4%) without education. Marital status: 1789 cases (89.2%) were married, 179 cases (8.9%) divorced or widowed, 37 cases (1.8%) unmarried. Two hundred and ninety-four patients (14.7%) had metastasis when they were first diagnosed, including 203 liver metastases, 52 peritoneal metastases, and 39 other metastases. One thousand eight hundred and sixty-nine patients underwent surgical treatment, of whom 1642 (81.9%) achieved complete resection. The median time of taking imatinib was 25 (1-200) months. Common adverse reactions of imatinib included 1701 cases (84.8%) of periorbital edema, 1031 cases (51.4%) of leukopenia, 948 cases (47.3%) of fatigue, 781 cases (39.0%) of nausea and vomiting, 709 cases (35.4%) of rash, and 670 cases (33.4%) of lower extremity edema. The score of the Morisky Medication Adherence Scale showed that 392 cases (19.6%) had poor adherence, 1023 cases (51.0%) had moderate adherence, and 590 cases (29.4%) had good adherence. Univariate analysis showed that gender, age, work status, economic income, residence, education level, marriage, the duration of taking medication and adverse reactions were associated with adherence to adjuvant imatinib therapy (all P<0.05). Multivariate analysis showed that female (OR=1.264, P=0.009), non-retirement (OR=1.454, P=0.001), monthly income ≤4000 yuan (OR=1.280, P=0.036), township residents (OR=1.332, P=0.005), unmarried or divorced or widowed (OR=1.362, P=0.026), the duration of imatinib medication >36 months (OR=1.478, P<0.001) and adverse reactions (OR=1.719, P=0.048) were independent risk factors for poor adherence to adjuvant imatinib. Among patients undergoing complete resection, 324 (19.7%) had poor adherence, 836 (50.9%) had moderate adherence, and 482 (29.4%) had good adherence. Meanwhile, 55 patients with good adherence (11.4%) developed recurrence after surgery, 121 patients with moderate adherence (14.5%) developed recurrence, 61 patients with poor adherence (18.8%) developed recurrence, and the difference was statistically significant (P=0.017). Conclusions: The adherence to adjuvant therapy with imatinib in Chinese GIST patients is relatively poor. Females, non-retirement, monthly income ≤4000 yuan, township residents, unmarried or divorced or widowed, the duration of imatinib medication >36 months, and adverse reactions are independently associated with poor adherence of GIST patients. Those with poor adherence have a higher risk of recurrence after surgery. Positive interventions based on the above risk factors are advocated to improve the prognosis of patients with GIST.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Antineoplastic Agents/therapeutic use*
		                        			;
		                        		
		                        			Chemotherapy, Adjuvant
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gastrointestinal Stromal Tumors/drug therapy*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Imatinib Mesylate/therapeutic use*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Neoplasm Recurrence, Local/drug therapy*
		                        			
		                        		
		                        	
8.Cardiac electrical and mechanical synchrony of super-responders to cardiac resynchronization therapy
Li KE-BEI ; Qian ZHI-YONG ; Qian XUE-SONG ; Zhou YONG ; Zhu DI-DI ; Qiu YUAN-HAO ; Wang YAO ; Hou XIAO-FENG ; Zou JIAN-GANG ; Sheng YU-FENG
Chinese Medical Journal 2020;133(2):141-147
		                        		
		                        			
		                        			Background:Super-responders (SRs) to cardiac resynchronization therapy (CRT) regain near-normal or normal cardiac function.The extent of cardiac synchrony of SRs and whether continuous biventricular (BIV) pacing is needed remain unknown.The aim of this study was to evaluate the cardiac electrical and mechanical synchrony of SRs.Methods:We retrospectively analyzed CRT recipients between 2008 and 2016 in 2 centers to identify SRs,whose left ventricular (LV) ejection fraction was increased to ≥50% at follow-up.Cardiac synchrony was evaluated in intrinsic and BIV-paced rhythms.Electrical synchrony was estimated by QRS duration and LV mechanical synchrony by single-photon emission computed tomography myocardial perfusion imaging.Results:Seventeen SRs were included with LV ejection fraction increased from 33.0 ± 4.6% to 59.3 ± 6.3%.The intrinsic QRS duration after super-response was 148.8 ± 30.0 ms,significantly shorter than baseline (174.8 ± 11.9 ms,P =0.004,t=-3.379) but longer than BIV-paced level (135.5 ± 16.7 ms,P =0.042,t =2.211).Intrinsic LV mechanical synchrony significantly improved after super-response (phase standard deviation [PSD],51.1 ± 16.5° vs.19.8 ± 8.1°,P < 0.001,t =5.726;phase histogram bandwidth (PHB),171.7±64.2° vs.60.5 ±22.9°,P< 0.001,t=5.376) but was inferior to BIV-paced synchrony (PSD,19.8 ± 8.1° vs.15.2 ± 6.4°,P =0.005,t =3.414;PHB,60.5 ± 22.9° vs.46.0 ± 16.3°,P =0.009,t =3.136).Condusions:SRs had significant improvements in cardiac electrical and LV mechanical synchrony.Since intrinsic synchrony of SRs was still inferior to BIV-paced rhythm,continued BIV pacing is needed to maintain longstanding and synchronized contraction.
		                        		
		                        		
		                        		
		                        	
9. Clinical and genetic analysis of two pedigrees affected with aromatic L-amino acid decarboxylase deficiency
Yong WANG ; Zhongling KE ; Hongchun ZOU ; Mingxing LIN ; Mingqi QIU ; Weiyue GU ; Yanhui CHEN
Chinese Journal of Medical Genetics 2019;36(11):1085-1089
		                        		
		                        			 Objective:
		                        			To delineate the clinical and genetic features of two pedigrees affected with aromatic L-amino acid decarboxylase (AADC) deficiency.
		                        		
		                        			Methods:
		                        			The clinical features, family history and results of genetic testing of 2 patients with AADC deficiency were retrospectively analyzed.
		                        		
		                        			Results:
		                        			Both patients featured hypotension, developmental delay and oculogyric crisis during infancy.Genetic testing confirmed that they have respectively carried c. 714+ 4 (IVS6) A>T/c.175(exon2)G>A compound heterozygous variants and c. 714+ 4(IVS6)A>T homozygous variant.
		                        		
		                        			Conclusion
		                        			The clinical manifestation of children with AADC deficiency may include hypotonia, developmental delay and paroxysmal oculogyric crisis. The combination of 3-O-methyldopa testing and variant analysis is not only very useful for early diagnosis, but also important for the evaluation of treatment effect and prognosis of the disease. Discovery of the novel variants has enriched the variant spectrum of AADC deficiency. 
		                        		
		                        		
		                        		
		                        	
10.Effects of Salvianolate on Myosin Heavy Chain in Cardiomyocytes of Congestive Heart Failure Rats.
Cheng CHEN ; Xiang-gu ZOU ; Shan-dong QIU ; Hui CHEN ; Yong-zhong CHEN ; Xiu-ming LIN
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(7):871-876
OBJECTIVETo explore the effect of Salvianolate on myosin heavy chain (MHC) in cardiomyocytes of congestive heart failure (CHF) rats.
METHODSSixty male SD rats were divided into 6 groups according to random digit table, i.e., the normal control group (NCG), the model group, the Captopril group (CAG), the low dose Salvianolate group (LSG), the high dose Salvianolate group (HSG), the Captopril and high dose Salvianolate group (CSG), 10 in each group. CHF rat model was established with peritoneal injection of adriamycin in all rats except those in the NCG. Equal volume of normal saline was peritoneally injected to rats in the NCG, once per week for 6 successive weeks. Corresponding medication was started from the 5th week of injecting adriamycin. Rats in the CAG were administered with Captopril solution at the daily dose of 10 mg/kg by gastrogavage. Rats in the LSG and the HSG were administered with Salvianolate solution at the daily dose of 24.219 mg/kg and 48.438 mg/kg respectively by gastrogavage. Salvianolate was dissolved in 2 mL 5% glucose solution and administered by peritoneal injection. Rats in the CSG were peritoneally injected with high dose Salvianolate solution and administered with Captopril solution by gastrogavage. Two mL normal saline was peritoneally injected to rats in the model group, once per day for 8 successive weeks. Eight weeks later, the cardiac function and myocardial hypertrophy indices were detected by biological signal collecting and processing system. mRNA expression levels of alpha-MHC and beta-MHC in cardiac muscle were detected by fluorescence quantitative PCR. Expressions of protein kinase C (PKC) in cardiac muscle were detected by Western blot.
RESULTSCompared with the normal control group, heart mass index (HMI) and left ventricular mass index (LVMI) obviously increased in the model group (P < 0.01). Compared with the model group, HMI and LVMI decreased in HSG, CAG, and CSG groups (P < 0.05, P < 0.01). It was more obviously lowered in the CSG group than in the CAG group (P < 0.05). Compared with the NCG, the mRNA expression level of alpha-MHC in cardiac muscle decreased, the mRNA expression level of p-MHC and the expression of PKC in cardiac muscle increased in the model group (P < 0.01). Compared with the model group, the mRNA expression level of alpha-MHC in cardiac muscle was increased, and the mRNA expression level of beta-MHC and the expression of PKC in cardiac muscle were decreased in HSG, CAG, and CSG groups (P < 0.05, P < 0.01). There was statistical difference between the CSG group and the CAG group (P < 0.05).
CONCLUSIONSSalvianolate could up-regulate the mRNA expression level of alpha-MHC, and down-regulate the mRNA expression level of beta-MHC in cardiac muscle. Its mechanism might be related to decreasing the expression of PKC.
Animals ; Captopril ; Doxorubicin ; Drugs, Chinese Herbal ; Heart Failure ; metabolism ; Male ; Myocardium ; Myocytes, Cardiac ; drug effects ; metabolism ; Myosin Heavy Chains ; metabolism ; Plant Extracts ; pharmacology ; Rats ; Rats, Sprague-Dawley
            
Result Analysis
Print
Save
E-mail