1.Clinical study of whole course accelerated fractionation radiotherapy for 126 patients with esophageal carcinoma
Lianxing LIN ; Zhiyuan XU ; Yixuan LI ; Chunyu LIANG
Cancer Research and Clinic 2008;20(9):618-619,622
Objective To evaluate the therapeutic effects of whole course hyperfractionation radiotherapy for esophageal carcinoma. Methods Form January 2000 to December 2001,126 patients with esophageal carcinoma were treated by whole course hyperfractionation radiotherapy(120~140 cGy per fraction, 2 times per day, to a total dose of 6400~7400 cGy) in our department. Results The short-term effective rate was 99.21%. The 1, 2 and 5 year survival rate was 61.11%, 41.27%, 23.02% and the median survival time was 1.29 years. The 1, 2 and 5 year disease-free survival rates was 57.94%, 38.10%, 19.84% and the median disease-free survival time was 1.16 years. Conclusion It is promising of whole course hyperfractionation radiotherapy for esophageal carcinoma. But it must be validated by the large-scale clinical trials.
2.THE NORMAL VARIATION OF HUMAN CARDIAC CONDUCTION SYSTEM
Shangyou LIANG ; Qingsong YAO ; Yixuan SONG ; Bin LUO ; Jiazhen ZHU ; Hannu LAAKSONEN ; Pekka SAUKKO
Acta Anatomica Sinica 1955;0(03):-
Objective To explore the delineation between normal variations and developmental anomalies (malformation) of human cardiac conduction system (CCS). Methods The CCS of 886 cases (737 cases were noncardiac death,149 cases died of sudden cardiac death) were examined histologically using the method designed by the authors that tissues containing the SAN and AVN were cut along the long axes of the nodes in 1-2 block and the HB perpendicular to its long axis 2-4 blocks.The morphology and causes of death in CCS of two groups were also studied. Results 1.There were congenital variations in human CCS with respect to the sizes,position and shape;2.There were postnatal variations in CCS accompanying the aging process;3.It was revealed that there were developmental anomalies in CCS with sudden cardiac death,which included fetal typed atrioventricular node (AVN) in adults, complete displacement of the AVN into the central fibrous body,complete separation of the HB into more than 3 bundles and the displacement of bifurcation of the HB into the root of tricuspid valve.These changes should not be grouped into normal variations,since they are related or potentially related to sudden cardiac deaths.Conclusion The following changes should be included in normal variation or CCS:displacement of the bifurcating portion of the HB into the pars membranacea of the ventricular septum;left sided deviation of downward and leftward displacement of that portion;displacement of less than 1/2 of the AVN in to the central fibrous body;displacement of the myocardium into the HB or LBB.;
3.The clinical analysis of Huntington disease:a case study from 12 genetic diagnosis families
Fengjuan SU ; Yixuan ZENG ; Zhong PEI ; Xiuling LIANG ; Xunhua LI ; Burgunder JEANMARC
Chinese Journal of Nervous and Mental Diseases 2016;42(1):6-10
Objective To investigate the clinical manifestation, inherited pattern and the related factor of Hunting?ton disease families. Method The clinical data from 12 HD families was collected from 2013-2014. Patients received the genetic test and neurological evaluation including motor, cognitive and problem of behavior. Results There were 12 patients having the IT15 gene dynamic mutations, including 1 Juvenile Huntington disease patient and 3 pre-symptomat?ic mutant gene carriers. The average CAG repeats of these patients was between the range of 40 to 60, and the average on?set age ranged from 13 to 54 year-old. Positive family history and genetic anticipation could be observed. Patients pre?sented with different clinical manifestations at the early stage while had typical chorea movements, declined cognitive and psychiatric symptoms at the late stage of the illness. Conclusions There are typical triad symptoms in the late stage but not in the early stage nor pre-symptom stage illness. Clinical manifestation and the neuroimaging are both of great ref?erence value, and the genetic test is essential for final diagnosis.
4.Expression, purification and NETs degradation activity of human DNase I
Journal of China Pharmaceutical University 2019;50(1):93-99
In order to study the effect of human deoxyribonuclease I(DNase I)on neutrophil extracellular traps(NETs)degradation, genetic engineering bacteria E. coli Rosetta(DE3)/pET32a-His-DNase I was constructed. The fusion protein His-DNase I was induced by lactose, and purified by Ni-affinity chromatography. Mouse neutrophils were extracted and stimulated with phorbol-12-myristate-13-acetate(PMA)to form NETs. The degradation activity of the fusion protein on NETs was detected by SytoxGreen and fluorescence microscopy. The results showed that the purified His-DNase I had high nuclease activity. This study provided the research foundation for further exploration of the clinical application of DNase I.
5.Advances in animal models of sphincter of Oddi dysfunction
Haonan LIN ; Yixuan LIANG ; Wangqiang ZHAO ; Junwei CAO ; Tianqi WANG ; Zhuorui LIANG ; Changmiao WANG
Chinese Journal of Hepatobiliary Surgery 2024;30(6):476-480
Sphincter of Oddi dysfunction (SOD) refers to the abnormal physiological function of sphincter of Oddi, which causes a series of syndromes in biliary tract, pancreas and liver. At present, the related research of SOD is becoming a hot spot, but its pathogenesis is not clear. This article will review the domestic and international literatures on SOD, review the advantages and disadvantages of experimental animals such as rabbits, dogs and guinea pigs, and analyze the characteristics of drugs and surgical modeling, so as to provide references for future related model establishment.
6.Establishment of a dynamic model of acute lung injury in mice based on the NLRP3/Caspase-1/gasdermin D signaling pyroptosis pathway
Yixuan FAN ; Xinwei WANG ; Junmei LI ; Liang YI ; Zhixu YANG
Acta Laboratorium Animalis Scientia Sinica 2024;32(4):423-434
Objective To establish a dynamic model of lipopolysaccharide-induced acute lung injury in mice based on the NLRP3/Caspase-1/gasdermin D(GSDMD)pyroptosis pathway,and observe the result ing lung injury at different time points.We aimed to identify the optimal time for modelling according to the injury at different time points and the expression of pyroptosis pathway-related proteins,to lay the foundation for animal models for subsequent experiments.Methods Fifty-four 6~8 weeks old male SPF BALB/c mice were divided randomly into nine groups,including Con group and model groups at 1,3,6,12,18,24,48,and 72 h.Body weight and lung tissue were detected by general and pathological observations and semi-quantitative scoring,including lung index,lung water content,and wet and dry weight ratio.The white blood cell count and concentrations of tumor necrosis factor-α,interleukin(IL)-6,IL-1β,IL-18,and BCA protein were detected in bronchoalveolar lavage fluid(BALF).The classic pyroptosis pathway-related proteins NLRP3,pro-Caspase 1,Caspase 1,and GSDMD were detected by Western Blot.Results Body weight decreased in all experimental groups,with the most significant weight loss in the 24 and 48 h groups.Gross observation and pathological examination of lung tissue showed that the most severe lung injury occurred at 24~72 h,with significant differences between each group and the control group.The lung index,lung water content,and wet/dry weight ratio were also significantly increased at 24~72 h.White blood cells in BALF started to increase from 6 h after model initiation,48 h can reach a peak,72 h all keep increasing.IL-18 in BALF began to increase at 24 h and continued to increase at 72 h.The inflammatory factors tumor necrosis factor-α,IL-1β,IL-6 were highest at 6 h and significantly reduced at 48 h.Protein concentrations in BALF were significantly increased within 24,48,and 72 h compared with those in the control group.The pyroptosis pathway proteins NLRP3,pro-Caspase-1,Caspase-1,and GSDMD were significantly enhanced in each time series,and channel protein expression was significantly enhanced at 24~72 h compared with that in the Con group.Conclusions Comprehensive analysis of experimental indicators,inflammatory factors,and pathway proteins at different times showed that the mechanism of pyroptosis was closely related to the occurrence and progression of acute lung injury.Expression of the pyroptosis pathway was most obvious and lung injury was most serious at 24~48 h.This study provides a model reference and experimental basis for subsequent studies of the specific mechanism and intervention targets of acute lung injury.
7.Experimental study on the treatment of sphincter of Oddi dysfunction by Qingre Lidan Decoction
Yixuan LIANG ; Haonan LIN ; Wangqiang ZHAO ; Junwei CAO ; Tianqi WANG ; Changmiao WANG
Chinese Journal of Hepatobiliary Surgery 2023;29(11):857-861
Objective:To study the changes in the sphincter of Oddi pressure in rabbits after bilateral vagus nerve trunk severance and the therapeutic effect of Qingre Lidan Decoction, to provide a new way for the treatment of sphincter of Oddi dysfunction.Methods:Twenty-four 1.5~2.0 kg New Zealand Large White rabbits of either gender were randomly selected and divided into the control group, the model group, and the treatment group. In the control group, only pyloroplasty was performed; in the model group and the treatment group, pyloroplasty plus bilateral vagus nerve trunk dissection at the level of the diaphragm were performed, and in the treatment group, one month of gavage treatment with Qingre Lidan Decoction was carried out 7 days after the operation. Multi-channel bio-signal acquisition system was used to record the pressure changes of the sphincter of Oddi in rabbits of each group; ELISA was used to detect the changes of inflammatory factors IL-6 and tumor necrosis factor TNF-α in the serum of rabbits.Results:The pressure of the sphincter of Oddi in the model group was significantly higher than those in the control group [low-pressure area: (51.95±0.35) mmHg (1 mmHg=0.133 kPa) vs (21.60±1.13) mmHg ( P<0.05) ; High pressure area: (60.75±0.49) mmHg vs (20.70±0.85) mmHg ( P<0.05)], the pressure of sphincter of Oddi in the treatment group of Qingre Lidan Decoction was lower than that of the model group [low-pressure area: (22.70±1.13) mmHg vs (51.95±0.35) mmHg ( P<0.05); high-pressure area: (32.15±0.49) mmHg vs (60.75±0.49) mmHg ( P<0.05)]. Serum IL-6 and TNF-αwere significantly elevated in the model group compared to the control group; IL-6 and TNF-α levels were decreased in the treatment group compared to the model group, and the differences were statistically significant ( P<0.05). Conclusion:Bilateral vagus nerve trunk severance leads to Oddi sphincter dysfunction, and treatment with Qingre Lidan Decoction could improve Oddi sphincter dysfunction.
8.Combination therapy using microwave ablation and d-mannose-chelated iron oxide nanoparticles inhibits hepatocellular carcinoma progression.
Rui CUI ; Luo WANG ; Dongyun ZHANG ; Kun ZHANG ; Jianping DOU ; Linan DONG ; Yixuan ZHANG ; Jiapeng WU ; Longfei TAN ; Jie YU ; Ping LIANG
Acta Pharmaceutica Sinica B 2022;12(9):3475-3485
Despite being a common therapy for hepatocellular carcinoma (HCC), insufficient thermal ablation can leave behind tumor residues that can cause recurrence. This is believed to augment M2 inflammatory macrophages that usually play a pro-tumorigenic role. To address this problem, we designed d-mannose-chelated iron oxide nanoparticles (man-IONPs) to polarize M2-like macrophages into the antitumor M1 phenotype. In vitro and in vivo experiments demonstrated that man-IONPs specifically targeted M2-like macrophages and accumulated in peri-ablation zones after macrophage infiltration was augmented under insufficient microwave ablation (MWA). The nanoparticles simultaneously induced polarization of pro-tumorigenic M2 macrophages into antitumor M1 phenotypes, enabling the transformation of the immunosuppressive microenvironment into an immunoactivating one. Post-MWA macrophage polarization exerted robust inhibitory effects on HCC progression in a well-established orthotopic liver cancer mouse model. Thus, combining thermal ablation with man-IONPs can salvage residual tumors after insufficient MWA. These results have strong potential for clinical translation.
9.Textual Research on Key Information and Modern Clinical Application of Classical Famous Formula Liumotang
Xinyu ZHANG ; Chong LI ; Yixuan HU ; Luming LIANG ; Ye ZHAO ; Xiaoting LU ; Yu WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):201-212
Liumotang comes from the Yuan dynasty's Effective Prescription Handed Down for Generations of Physicians. It is composed of six medicinal materials: Arecae Semen, Aquilariae Lignum Resinatum, Aucklandiae Radix, Linderae Radix, Rhei Radix et Rhizoma, and Aurantii Fructus. It is a classical formula for treating abdominal pain due to Qi stagnation and constipation accompanied by heat. This study systematically collated the records of Liumotang in ancient medical books and modern clinical literature and conducted in-depth analysis and textual research on its formula source, main diseases, composition, dosage, medical books, container capacity, processing, preparation method, usage, drug basis, formula meaning, and other key information, so as to provide a powerful reference for the development and clinical application of compound preparations of the classical formula Liumotang. The results show that Liumotang was first seen in Effective Prescription Handed Down for Generations of Physicians, and many medical books of the past dynasties have imitated this. In terms of drug basis, the dried and mature seeds of the palm plant Areca catechu, resin-containing wood of the Daphneaceae plant Aquilaria sinensis, the dried roots of the Asteraceae plant woody Aucklandia lappa, the dried tuber root of the Lauraceae plant Lindera aggregata, the dried roots and rhizomes of the knotweed plant, R. palmatum, R.tangutikum, and R. officinale, and the dried and unripe fruits of the citrus genus C. aurantium and its cultivated varieties from the family Rutaceae were selected. In terms of dosage, through the textual research on bowls in the Ming and Qing dynasties, combined with the conversion of medicines and bowl capacity in the Qing dynasty, it was estimated that the dosage of each drug in the Yuan dynasty was 10.86 g. In the Ming and Qing dynasties, the dosage of drugs was mostly equal, but the dosage of drugs was somewhat different. In terms of processing, preparation method, and usage, in the medical books of the past dynasties, the processing of drugs has slightly changed, but raw drugs are used in all preparations. The preparation method and usage did not change much during the Yuan, Ming, and Qing dynasties, except for certain differences in dosage. In terms of syndrome, Liumotang was first used to treat abdominal pain due to Qi stagnation and constipation accompanied by heat. Medical books of the past dynasties often omit the symptoms of heat. In modern clinical practice, Liumotang is mainly used in the digestive system and urinary system diseases and is mostly used to treat constipation-predominant irritable bowel syndrome, biliary reflux gastritis, functional constipation, slow transit constipation, and other diseases, with no adverse reactions found yet. The above results provide a reliable scientific basis for the development and clinical treatment of Liumotang compound preparations.
10.A brief introduction to the clinical pathway of the endoscopic-assisted immediate implant-based breast reconstruction after nipple sparing mastectomy for breast cancer patients in day surgery center of West China Hospital
Jiao ZHOU ; Faqing LIANG ; Yanyan XIE ; Nan WEN ; Songbo ZHANG ; Yu FENG ; Xinran LIU ; Yixuan HUANG ; Huanzuo YANG ; Mengxue QIU ; Qing LV ; Zhenggui DU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2021;28(12):1393-1399
The traditional view is that breast reconstruction is not an option for day surgery center. As a result, few hospitals in the world conduct this operation in day surgery center. Endoscopic breast reconstruction with liposuction and robot-assisted breast reconstruction are minimally invasive surgeries for breast cancer patients, but they cannot be carried out in the day surgery center due to long operation time. The novel endoscopic-assisted immediate implant-based breast reconstruction after nipple sparing mastectomy through a single axillary incision for breast cancer patients has been successfully conducted in the day surgery center in our hospital due to short operation time and small trauma. Standardized management of the complete process from the patient selection to follow-up after discharge brings rapid recovery and few complications. At the same time, the development of endoscopic surgery makes the breast almost scarless and improves aesthetic results. Therefore, the mode of endoscopic-assisted reconstruction in the day surgery center of our hospital is expected to be popularized in the whole country.