1.Analysis of Knowledge Map of Acupoint Catgut Embedd Therapy for Pain Based on Citespace
Hong-Fen YI ; Xin-Yu CHEN ; Han PENG ; Qian LI ; Tao-Hong LUO ; Qing-Long XUE ; Hao-Lin ZHANG ; Jian ZHUANG ; Mai-Lan LIU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(1):154-160
		                        		
		                        			
		                        			Objective To comprehensively excavate and analyze the research status,research hotspots and future trends of the literature related to the field of acupoint catgut embedding therapy for pain treatment in the CNKI database.Methods We searched the CNKI database from its establishment to June 2022,and scientifically analyzed the authors,keywords,and institutions of the included literature of acupoint catgut embedding therapy for pain treatment through specific algorithms of Citespace to generate a visual knowledge map.Results A total of 319 documents were included for statistical analysis,the number of publications in the field of acupoint catgut embedding therapy for the treatment of pain was generally on the rise,the number of publications by various authors was on the low side,and there was a lack of co-operation between the research teams,with the main institutions being the Guang'anmen Hospital,Chinese Academy of Chinese Medical Sciences,Affiliated Hospital of Youjiang Medical Universities of Nationalities and the Guangzhou University of Chinese Medicine,forming a 10-keyword clustering,and the hotspots of diseases under study were mainly mixed haemorrhoids,postoperative pain,low back and leg pain and dysmenorrhoea,etc..The main interventions were pure acupoint catgut embedding therapy and the combination of acupoint catgut embedding therapy and other acupuncture therapies,and the main research method was clinical research.Conclusion Acupoint catgut embedding therapy for the treatment of pain has a good development prospect,the future needs to deepen the clinical research,strengthen the mechanism research,pay attention to the joint use of acupoint catgut embedding therapy and other traditional Chinese medicine methods,and pay attention to the research of different thread materials.
		                        		
		                        		
		                        		
		                        	
2.Effect of Herbal Cake-Separated Moxibustion on the Expression of PI3K/AKT/mTOR in Atherosclerotic Rabbits
Han PENG ; Hong-Fen YI ; Xin-Yu CHEN ; Qian LI ; Meng-Xia XIAO ; Hong-Hua LIU ; Mai-Lan LIU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(7):1839-1844
		                        		
		                        			
		                        			Objective To investigate the anti-atherosclerotic mechanism of herbal cake-separated moxibustion.Methods Twenty-four New Zealand purebred male rabbits were randomly divided into normal group,model group,herbal cake-separated moxibustion group and Atorvastatin group,with 6 rabbits in each group.Except for the normal group,the rabbits in the other groups were fed with high-fat diet mixed with Propylthiouracil(PTU)method to construct an atherosclerosis model.At the same period of modeling,corresponding intervention was given.After 12 weeks,the levels of serum total cholesterol(TC),triglyceride(TG)and low density lipoprotein cholesterol(LDL-C)were detected.The pathological changes of rabbit aortic tissue were observed by hematoxylin-eosin(HE)staining.The levels of serum tumor necrosis factor α(TNF-α),interleukin 6(IL-6)and interleukin 10(IL-10)were detected by enzyme-linked immunosorbent assay(ELISA).The contents of phosphatidylinositol 3-kinase(PI3K),phosphorylated protein kinase B(p-AKT)and phosphorylated mammalian target of rapamycin(p-mTOR)in myocardial tissue were detected by Western Blot.Results Compared with the normal group,the serum levels of TC,TG and LDL-C in the model group were significantly increased(P<0.001),the aortic vascular endothelial structure was significantly damaged,the serum levels of TNF-α and IL-6 were increased(P<0.001),the serum level of IL-10 was decreased(P<0.01),and the protein expression levels of PI3K,p-AKT and p-mTOR in myocardial tissue were significantly decreased(P<0.05 or P<0.01).Compared with the model group,the above indexes in the herbal cake-separated moxibustion group and the Atorvastatin group were significantly improved(P<0.05 or P<0.01 or P<0.001).Compared with the Atorvastatin group,the contents of TG and LDL-C in the herbal cake-separated moxibustion group were increased(P<0.01),and other indicators did not change significantly(P>0.05).Conclusion The mechanism of anti-atherosclerosis of herbal cake-separated moxibustion may be related to the activation of PI3K/AKT/mTOR signaling pathway and the regulation of the expressions of inflammatory mediators TNF-α,IL-6 and IL-10.
		                        		
		                        		
		                        		
		                        	
3.Efficacy and safety of autologous hematopoietic stem cell transplantation in elderly multiple myeloma patients: a single center retrospective study.
Bei Hui HUANG ; Juan LI ; Wai Yi ZOU ; Jun Ru LIU ; Jing Li GU ; Xiao Zhe LI ; Mei Lan CHEN ; Li Fen KUANG
Chinese Journal of Hematology 2022;43(2):141-145
		                        		
		                        			
		                        			Objective: To evaluate the efficacy and safety of autologous hematopoietic stem cell transplantation (auto-HSCT) in elderly patients (≥65 years old) with multiple myeloma (MM) . Methods: From June 1, 2006 to July 31, 2020, 22 MM patients (≥65 years old) who were diagnosed in the First Affiliated Hospital, Sun Yat-sen University and received novel drug induction followed by auto-HSCT were analyzed retrospectively. These patients were evaluated for important organ functions before transplantation, and the International Myeloma Working Group frail score was used in 2016 to screen out transplant-eligible patients. Results: The median (interquartile range, IQR) age at the time of transplantation of the 22 patients was 66.75 (IQR 4.50) years. A total of 20 patients received stem cell mobilization. The median number of mononuclear cells collected was 4.53×10(8)/kg, that of CD34(+) cells was 3.37×10(6)/kg, and the median number of apheresis procedures performed was 2. After stem cell transfusion, the median time of neutrophil implantation was 11 days, that of platelet implantation was 13 days, and the treatment-related mortality was 0 at 100 days after transplantation. The median follow-up was 48.7 months. The median time to progression time was not reached, and the median overall survival time was 111.8 months. Conclusion: Auto-HSCT is a safe and effective treatment for selected elderly patients of 65 years or older with MM.
		                        		
		                        		
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Mobilization/methods*
		                        			;
		                        		
		                        			Hematopoietic Stem Cell Transplantation/adverse effects*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Multiple Myeloma/drug therapy*
		                        			;
		                        		
		                        			Retrospective Studies
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		                        			Transplantation, Autologous/methods*
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		                        			Treatment Outcome
		                        			
		                        		
		                        	
4.Evaluation of the clinical effect of an artificial intelligence-assisted diagnosis and treatment system for neonatal seizures in the real world: a multicenter clinical study protocol.
Tian-Tian XIAO ; Ya-Lan DOU ; De-Yi ZHUANG ; Xu-Hong HU ; Wen-Qing KANG ; Lin GUO ; Xiao-Fen ZHAO ; Peng ZHANG ; Kai YAN ; Wei-Li YAN ; Guo-Qiang CHENG ; Wen-Hao ZHOU
Chinese Journal of Contemporary Pediatrics 2022;24(2):197-203
		                        		
		                        			
		                        			Neonatal seizures are the most common clinical manifestations of critically ill neonates and often suggest serious diseases and complicated etiologies. The precise diagnosis of this disease can optimize the use of anti-seizure medication, reduce hospital costs, and improve the long-term neurodevelopmental outcomes. Currently, a few artificial intelligence-assisted diagnosis and treatment systems have been developed for neonatal seizures, but there is still a lack of high-level evidence for the diagnosis and treatment value in the real world. Based on an artificial intelligence-assisted diagnosis and treatment systems that has been developed for neonatal seizures, this study plans to recruit 370 neonates at a high risk of seizures from 6 neonatal intensive care units (NICUs) in China, in order to evaluate the effect of the system on the diagnosis, treatment, and prognosis of neonatal seizures in neonates with different gestational ages in the NICU. In this study, a diagnostic study protocol is used to evaluate the diagnostic value of the system, and a randomized parallel-controlled trial is designed to evaluate the effect of the system on the treatment and prognosis of neonates at a high risk of seizures. This multicenter prospective study will provide high-level evidence for the clinical application of artificial intelligence-assisted diagnosis and treatment systems for neonatal seizures in the real world.
		                        		
		                        		
		                        		
		                        			Artificial Intelligence
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		                        			Electroencephalography/methods*
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		                        			Epilepsy/diagnosis*
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		                        			Humans
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		                        			Infant, Newborn
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		                        			Infant, Newborn, Diseases/diagnosis*
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		                        			Intensive Care Units, Neonatal
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		                        			Multicenter Studies as Topic
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		                        			Prospective Studies
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		                        			Randomized Controlled Trials as Topic
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		                        			Seizures/drug therapy*
		                        			
		                        		
		                        	
5.Delivery room resuscitation and short-term outcomes of extremely preterm and extremely low birth weight infants: a multicenter survey in North China.
Shuai-Jun LI ; Qi FENG ; Xiu-Ying TIAN ; Ying ZHOU ; Yong JI ; Yue-Mei LI ; Shu-Fen ZHAI ; Wei GUO ; Fang ZHANG ; Rong-Xiu ZHENG ; Hai-Ying HE ; Xia LIU ; Jun-Yi WANG ; Hua MEI ; Hong-Yun WANG ; Hua XIE ; Chao-Mei ZENG ; Li MA ; Ping-Ping ZHANG ; Jin-Yu LI ; Xiao-Ying WANG ; Li-Hua LI ; Hong CUI ; Shu-Lan YANG ; Lu CHEN ; Xiao-Hong GU ; Yan-Ju HU ; Sheng-Shun QUE ; Li-Xia SUN ; Ming YANG ; Wen-Li ZHAO ; Qiu-Yan MA ; Hai-Juan WANG ; Jiu-Ye GUO
Chinese Medical Journal 2021;134(13):1561-1568
		                        		
		                        			BACKGROUND:
		                        			Delivery room resuscitation assists preterm infants, especially extremely preterm infants (EPI) and extremely low birth weight infants (ELBWI), in breathing support, while it potentially exerts a negative impact on the lungs and outcomes of preterm infants. This study aimed to assess delivery room resuscitation and discharge outcomes of EPI and ELBWI in China.
		                        		
		                        			METHODS:
		                        			The clinical data of EPI (gestational age [GA] <28 weeks) and ELBWI (birth weight [BW] <1000 g), admitted within 72 h of birth in 33 neonatal intensive care units from five provinces and cities in North China between 2017 and 2018, were analyzed. The primary outcomes were delivery room resuscitation and risk factors for delivery room intubation (DRI). The secondary outcomes were survival rates, incidence of bronchopulmonary dysplasia (BPD), and risk factors for BPD.
		                        		
		                        			RESULTS:
		                        			A cohort of 952 preterm infants were enrolled. The incidence of DRI, chest compressions, and administration of epinephrine was 55.9% (532/952), 12.5% (119/952), and 7.0% (67/952), respectively. Multivariate analysis revealed that the risk factors for DRI were GA <28 weeks (odds ratio [OR], 3.147; 95% confidence interval [CI], 2.082-4.755), BW <1000 g (OR, 2.240; 95% CI, 1.606-3.125), and antepartum infection (OR, 1.429; 95% CI, 1.044-1.956). The survival rate was 65.9% (627/952) and was dependent on GA. The rate of BPD was 29.3% (181/627). Multivariate analysis showed that the risk factors for BPD were male (OR, 1.603; 95% CI, 1.061-2.424), DRI (OR, 2.094; 95% CI, 1.328-3.303), respiratory distress syndrome exposed to ≥2 doses of pulmonary surfactants (PS; OR, 2.700; 95% CI, 1.679-4.343), and mechanical ventilation ≥7 days (OR, 4.358; 95% CI, 2.777-6.837). However, a larger BW (OR, 0.998; 95% CI, 0.996-0.999), antenatal steroid (OR, 0.577; 95% CI, 0.379-0.880), and PS use in the delivery room (OR, 0.273; 95% CI, 0.160-0.467) were preventive factors for BPD (all P < 0.05).
		                        		
		                        			CONCLUSION
		                        			Improving delivery room resuscitation and management of respiratory complications are imperative during early management of the health of EPI and ELBWI.
		                        		
		                        		
		                        		
		                        			Birth Weight
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		                        			Bronchopulmonary Dysplasia
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		                        			China/epidemiology*
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		                        			Delivery Rooms
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		                        			Female
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		                        			Gestational Age
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		                        			Humans
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		                        			Infant
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		                        			Infant, Extremely Low Birth Weight
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		                        			Infant, Extremely Premature
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		                        			Infant, Newborn
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		                        			Male
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		                        			Pregnancy
		                        			
		                        		
		                        	
6.Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China.
Yan MA ; Dong Shan ZHU ; Ren Bo CHEN ; Nan Nan SHI ; Si Hong LIU ; Yi Pin FAN ; Gui Hui WU ; Pu Ye YANG ; Jiang Feng BAI ; Hong CHEN ; Li Ying CHEN ; Qiao FENG ; Tuan Mao GUO ; Yong HOU ; Gui Fen HU ; Xiao Mei HU ; Yun Hong HU ; Jin HUANG ; Qiu Hua HUANG ; Shao Zhen HUANG ; Liang JI ; Hai Hao JIN ; Xiao LEI ; Chun Yan LI ; Min Qing LI ; Qun Tang LI ; Xian Yong LI ; Hong De LIU ; Jin Ping LIU ; Zhang LIU ; Yu Ting MA ; Ya MAO ; Liu Fen MO ; Hui NA ; Jing Wei WANG ; Fang Li SONG ; Sheng SUN ; Dong Ting WANG ; Ming Xuan WANG ; Xiao Yan WANG ; Yin Zhen WANG ; Yu Dong WANG ; Wei WU ; Lan Ping WU ; Yan Hua XIAO ; Hai Jun XIE ; Hong Ming XU ; Shou Fang XU ; Rui Xia XUE ; Chun YANG ; Kai Jun YANG ; Sheng Li YUAN ; Gong Qi ZHANG ; Jin Bo ZHANG ; Lin Song ZHANG ; Shu Sen ZHAO ; Wan Ying ZHAO ; Kai ZHENG ; Ying Chun ZHOU ; Jun Teng ZHU ; Tian Qing ZHU ; Hua Min ZHANG ; Yan Ping WANG ; Yong Yan WANG
Biomedical and Environmental Sciences 2020;33(12):893-905
		                        		
		                        			Objective:
		                        			Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.
		                        		
		                        			Methods:
		                        			A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients' medical records. Multivariable logistic regression models were used to estimate the odds ratio ( 
		                        		
		                        			Results:
		                        			Overall, 158 (13.6%) patients were diagnosed with severe illness and 32 (2.7%) had unfavorable outcomes. Hypertension (2.87, 1.30-6.32), type 2 diabetes (T2DM) (3.57, 2.32-5.49), cardiovascular disease (CVD) (3.78, 1.81-7.89), fatty liver disease (7.53, 1.96-28.96), hyperlipidemia (2.15, 1.26-3.67), other lung diseases (6.00, 3.01-11.96), and electrolyte imbalance (10.40, 3.00-26.10) were independently linked to increased odds of being severely ill. T2DM (6.07, 2.89-12.75), CVD (8.47, 6.03-11.89), and electrolyte imbalance (19.44, 11.47-32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission (5.46, 3.25-9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes (6.58, 1.46-29.64) within two weeks.
		                        		
		                        			Conclusion
		                        			Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.
		                        		
		                        		
		                        		
		                        			Adult
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		                        			Aged
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		                        			COVID-19/virology*
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		                        			China/epidemiology*
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		                        			Comorbidity
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		                        			Female
		                        			;
		                        		
		                        			Humans
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		                        			Male
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		                        			Middle Aged
		                        			;
		                        		
		                        			Retrospective Studies
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		                        			Severity of Illness Index
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		                        			Treatment Outcome
		                        			
		                        		
		                        	
7. Effect of Saponins in Pulsatillae Radix on Proliferation and Apoptosis of NCI-H460 Lung Cancer Cells and Screening of Its Differentially Expressed Proteins
Zi-yi GUAN ; Lan-ying CHEN ; Ying-ying LUO ; Ya-ru CUI ; Bin-yao SHOU ; Li-fen ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2019;25(18):49-56
		                        		
		                        			
		                        			 Objective: To screen the differentially expressed proteins of saponins in Pulsatillae Radix inhibiting the proliferation and induce apoptosis on NCI-H460 tumor cells based on proteome technology using nano LC-LTQ-Orbitrap-MS/MS, and preliminarily speculate the potential mechanism. Method: NCI-H460, SK-OV-3 and SGC-7901 tumor cells were cultured in vitro. Methylthiazoletetrazolium (MTT) assay was used to detect the inhibitory rate of saponins in Pulsatillae Radix on three tumor cell lines. Effect of saponins in Pulsatillae Radix on apoptosis was analyzed by Annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI) staining flow cytometry and 4',6-diamidino-2-phenylindole (DAPI) staining. Apoptosis was analyzed using flow cytometry and DAPI stain. Nano LC-LTQ-Orbitrap-MS/MS was used to investigate the changes in the protein profiles on NCI-H460 cells treated with saponins in Pulsatillae Radix. Proteins exhibiting differential expression were analyzed by DAVID Bioinformatics Resources 6.8 and Kyoto encyclopedia of genes and genomes (KEGG) database. The differentially expressed proteins were verified by Western blot. Result: Saponins in Pulsatillae Radix could inhibit the proliferation of NCI-H460, SK-OV-3 and SGC-7901 tumor cells and induce apoptosis of NCI-H460 tumor cells. Effect of Saponins in Pulsatillae Radix on the proliferation and apoptosis of NCI-H460 tumor cells was mainly related to the regulation of biological function of ribosome, glycolysis/gluconeogenesis and other biological processes. It was possible to induce apoptosis of NCI-H460 tumor cells by interfering mitogen-activated protein kinase (MAPK) signaling pathway and regulating the Caspase pathway. Conclusion: Saponins in Pulsatillae Radix can inhibit the proliferation and induce the apoptosis of NCI-H460 tumor cells, the mechanism may be related to the intervention of MAPK signaling pathway and the regulation of Caspase pathway. These findings are helpful to elucidate the molecular mechanism of the anti-tumor effect of saponins in Pulsatillae Radix. 
		                        		
		                        		
		                        		
		                        	
8.Bortezomib-based induction chemotherapy followed by autologous hematopoietic stem cell transplantation and maintenance in 200 patients with multiple myeloma: long-term follow-up results from single center.
Qiong WU ; Jun Ru LIU ; Bei Hui HUANG ; Wai Yi ZOU ; Jing Li GU ; Mei Lan CHEN ; Li Fen KUANG ; Dong ZHENG ; Duo Rong XU ; Zhen Hai ZHOU ; He Hua WANG ; Chang SU ; Xiu Zhen TONG ; Juan LI
Chinese Journal of Hematology 2019;40(6):453-459
		                        		
		                        			
		                        			Objective: To study the efficacy, safety and long-term outcomes of integrated strategy of bortezomib-based induction regimens followed by autologous hematopoietic stem cell (ASCT) and maintenance therapy in Chinese multiple myeloma (MM) patients. Methods: 200 MM patients receiving integrated strategy of bortezomib--based induction regimens followed by ASCT and maintenance therapy were retrospectively and prospectively analyzed from December 1. 2006 to April 30. 2018. Results: The complete remission rates (CR) and better than very good partial remission rates (VGPR) after induction therapy, transplantation and maintenance therapy were respectively 31% and 75.5%, 51.8% and 87.7%,73.6% and 93.4%. There was no difference between 4 cycles and more than 5 cycles induction chemotherapy. The negative rate of MRD detection by flow cytometry was 17.6% and 38.2% respectively after induction and 3 months after transplantation. The negative rate of MRD gradually increased during the maintenance therapy. The success rate of high dose CTX combined with G-CSF mobilization was 95.5% and transplantation related mortality (TRM) was zero. The median time to progress (TTP) was 75.3 months and the median overall survival (OS) was 99.5 months. TTP of patients obtaining CR and negative MRD after induction were longer that those of no CR and positive MRD. TTP and OS of patients receiving triple-drug induction and ASCT in early stage were longer than those of double-drug induction and ASCT in late stage. LDH≥240 U/L, high risk cytogenetics, ISS II+III stage and HBsAg positive were prognostic factors at diagnosis. However, only MRD and high risk cytogenetics were independent prognostic factors after transplantation and maintenance therapy. The clinical characteristics of patients of TTP ≥6 years were listed below: light-chain type M protein, ISS I stage, normal level of hemoglobin and platelet, normal LDH, HBsAg negative, chromosome 17p-negative, good response and sustained good response. Conclusions: Integrated strategy of bortezomib-based induction regimens followed by ASCT and maintenance therapy can significantly improve the short-term and long-term efficacy. The prognostic factors of TTP in different disease stages were different. Response to treatment, especially MRD, played a more important role in prognostic factors.
		                        		
		                        		
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols
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		                        			Bortezomib/therapeutic use*
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		                        			Follow-Up Studies
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		                        			Hematopoietic Stem Cell Transplantation
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		                        			Humans
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		                        			Induction Chemotherapy
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		                        			Multiple Myeloma/therapy*
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		                        			Retrospective Studies
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		                        			Stem Cell Transplantation
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		                        			Transplantation, Autologous
		                        			;
		                        		
		                        			Treatment Outcome
		                        			
		                        		
		                        	
9.Correlations of thyroid hormone with deceleration capacity of heart rate and heart rate variability in children with hyperthyroidism.
Lan-Fen YI ; Hong-Xia WEN ; Mei QIU
Chinese Journal of Contemporary Pediatrics 2018;20(10):814-818
OBJECTIVETo investigate deceleration capacity of heart rate (DC), acceleration capacity of heart rate (AC), and heart rate variability (HRV) in children with hyperthyroidism and the correlations of serum thyroid hormone levels with DC, AC, and HRV.
METHODSA total of 47 children with hyperthyroidism were enrolled as hyperthyroidism group and 50 healthy children were enrolled as control group. The subjects in the two groups underwent 24-hour ambulatory electrocardiography. The two groups were compared in terms of DC, AC, heart rate (HR), HRV parameters [standard deviation of normal-to-normal RR intervals (SDNN), standard deviation of average normal-to-normal RR intervals (SDANN), root mean square of successive differences between adjacent RR intervals (RMSSD), low-frequency power (LF), and high-frequency power (HF)]. The correlations of thyroid hormone indices [free triiodothyronine (FT3) and free thyroxin (FT4)] with DC, AC, and HRV were analyzed.
RESULTSCompared with the control group, the hyperthyroidism group had significantly lower DC, SDNN, SDANN, RMSSD, LF, and HF and significantly higher AC and HR (P<0.05). In the children with hyperthyroidism, serum FT3 and FT4 levels showed significant negative correlation with DC, SDNN, SDANN, RMSSD, LF, and HF and significant positive correlation with AC and HR (P<0.05).
CONCLUSIONSChildren with hyperthyroidism have cardiac autonomic nerve dysfunction manifested as reduced vagal tone. Vagal tone decreases with the increasing serum thyroid hormone levels, suggesting an increased risk of cardiovascular disease.
10.Effect of vitamin D deficiency on cardiac autonomic nerve function in obese pre-school children.
Mei QIU ; Hong-Xia WEN ; Xiao-Li HUANG ; Lan-Fen YI ; Xiao-Xiao CAO ; Wen-Juan WANG
Chinese Journal of Contemporary Pediatrics 2018;20(9):753-757
OBJECTIVETo study the effect of vitamin D (VitD) deficiency on cardiac autonomic nerve function in obese pre-school children.
METHODSA total of 242 pre-school children with simple obesity were enrolled, and according to the serum 25-(OH) VitD level, they were divided into VitD deficiency group (76 children), VitD insufficiency group (83 children), and VitD sufficiency group (83 children). The three groups were compared in terms of deceleration capacity (DC) of heart rate, acceleration capacity (AC) of heart rate, and heart rate variability (HRV). The correlations of VitD level with DC, AC, and HRV were analyzed for the VitD insufficiency and VitD deficiency groups.
RESULTSThe VitD deficiency group had the lowest DC, root mean square of successive differences between adjacent RR intervals (RMSSD), and low-frequency power (LF) and the highest AC (P<0.05). The VitD insufficiency group had significantly lower DC, RMSSD, and LF and significantly higher AC compared with the VitD sufficiency group (P<0.05). The VitD deficiency group had significantly lower standard deviation of normal-to-normal RR intervals (SDNN) and high-frequency power (HF) than the VitD sufficiency group (P<0.05). In the VitD deficiency group, VitD level was positively correlated with DC, SDNN, standard deviation of average normal-to-normal RR intervals, RMSSD , LF, and HF and was negatively correlated with AC (P<0.05). In the VitD insufficiency group, VitD level was negatively correlated with AC (P<0.05).
CONCLUSIONSObese pre-school children with VitD insufficiency or deficiency have cardiac autonomic dysfunction, and cardiac vagal tone decreases with the reduction in VitD level.
            
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