1.Major Health Economic Issues and Reform Orientation of Indonesia’s Health System
Chinese Health Economics 2013;(9):95-96
Based on the health service delivery system and its performance, it shows the major issues faced by Indonesian health system, including heavy disease burden of NCD, imbalance allocation of medical care and resources, poor access to health service in rural area, low level of government health budget and so on. Presently, the reform in Indonesian health system is in the direction of equity and self-government, via participation of community, private sector or civil society, availability of comprehensive, equitable health care and health resource, to enhance health system and improve population health.
2.Patency rate and endothelialization study of displace of blood vessel with prostheses seeded by CD34~+ stem cells
Weishuai LIAN ; Zhenhai YU ; Kun WANG ; Shuguang ZHANG
Chinese Journal of Current Advances in General Surgery 1999;0(03):-
Objective:To investigate the endothelialization and intermediate and long-term patency rate of prostheses seeded by CD34+ stem cells.Methods:sixteen crossbred dogs were randomized into 2 groups.Prostheses covered with ePTFE or Dacron were implanted into the abdominal aorta artery(AAA) and inferior vena cava(IVC).Twelve dogs were implanted by prostheses seeded by CD34+ stem cells,4 dogs were implanted by autogenous blood only as control.The prostheses were explanted at thirty or sixty or one hundred days.Light and electron microscopy were applied to examine endothelialization of prostheses.CD34 factor stain was used to identify endothelial cells.Results:All venous prostheses implanted by autogenous blood were blocked.Others were patent.Confluent endothelial cells appeared on the neointima of seeded prostheses.There were no endothelial cells in the no-implanted prostheses.Conclusion:Endothelialization and higher patency rate might be achieved in the prostheses covered with ePTFE or Dacron that were implanted by CD34+ stem cells.
3.Therapeutic strategy to prevent the recurrence of esophageal carci-noma after radical resection
Bo LI ; Wencheng ZHANG ; Lujun ZHAO ; Ningbo LIU ; Qingsong PANG ; Zhiyong YUAN ; Weishuai LIU ; Ping WANG
Chinese Journal of Clinical Oncology 2013;(24):1553-1557
Objective:To evaluate the radiotherapeutic strategy for the treatment of recurrent esophageal cancer after radical re-section and determine relevant prognostic factors. Methods:A total of 66 patients with esophageal carcinoma and exhibited recurrence after radical surgery were retrospectively reviewed from Jan 2007 to Jun 2010. The median interval of recurrence from the initial sur-gery was 10.6 months. Among the 66 patients, 50 suffered from loco-regional recurrences alone, and 16 developed distant metastases in addition to loco-regional recurrences. Among the 66 patients, 10 were treated with radiotherapy after recurrence, 23 were treated with chemotherapy alone, and 33 were treated with radiotherapy combined with chemotherapy. Among the 33 patients, 22 were initially treat-ed with chemotherapy and 11 were initially treated with radiotherapy. The median total dose of the external radiotherapy was 60 Gy with 6 MV X-ray of a linear accelerator. Results:The median survival period after recurrence was 14.3 months (95%CI=12.4~16.2 months). The 1-, 2-, and 3-year survival rates were 61.9%, 25.9%, and 16.5%, respectively. The median survival period after recurrence in the patients who were treated with chemotherapy alone, radiotherapy alone, and radiotherapy combined with chemotherapy were 11.4, 25.5, and 14.3 months, respectively. The patients who developed distant metastases treated with chemotherapy initially showed better survival outcome than those treated with radiotherapy (P=0.032). Univariate analysis results showed the following prognostic factors:tumor location before surgery;operation mode;whether or not recurrence was detected with distant metastases;and therapy af-ter recurrence. Multivariate analysis results showed that tumor location before surgery was an independent prognostic factor. Conclu-sion:Tumor location may indicate prognosis after recurrence. Patients with recurrent esophageal carcinoma and developed distant me-tastases treated with chemotherapy may initially benefit from a longer survival rate.
4.Relationship between the effect of induction chemotherapy and timing of radiotherapy in limited-disease small-cell lung cancer
Weishuai LIU ; Lujun ZHAO ; Yong GUAN ; Wencheng ZHANG ; Zhiyong YUAN ; Ping WANG
Chinese Journal of Clinical Oncology 2014;(1):73-77
Objective:This study aims to analyze the relationship between the effect of induction chemotherapy and the timing of radiotherapy in limited-disease or limited-stage small-cell lung cancer (LSCLC). Methods: Data from 148 LSCLC patients who re-ceived induction chemotherapy and radiotherapy between January 2009 and December 2012 were retrospectively analyzed. The effect of two to three cycles of induction chemotherapy was evaluated according to the RECIST version 1.1, which includes complete re-sponse (CR), partial response (PR), stable disease, and progressive disease. CR and PR were used to calculate response rate. The pa-tients were divided into early and late groups based on immediate radiotherapy after two to three cycles of induction chemotherapy. The survival rate was analyzed using the Kaplan-Meier method. Log-rank test and Cox regression model were used to evaluate the influenc-ing factors of the survival rate. Results: The median overall survival (OS) and progression-free survival (PFS) were 22.8 and 13.0 months, respectively. The early and late radiotherapy groups exhibited OS of 34.0 and 18.0 months, respectively, and corresponding PFS of 16.8 and 10.9 months. In the subgroup analysis, for the patients who responded to the induction chemotherapy, the early and late radiotherapy groups showed median OS of 18.0 and 19.5 months, respectively, and corresponding PFS of 19.4 and 11.7 months. For the patients who had no response to the induction chemotherapy, the early and late radiotherapy groups exhibited median OS of 18.0 and 9.5 months, respectively, and corresponding PFS of 12.4 and 10.3 months. Conclusion:All LSCLC patients who received two to three cycles of induction chemotherapy should receive radiotherapy as soon as possible after chemotherapy, regardless of their response to the induction chemotherapy.
5.Research on ethical issues in diagnosis and treatment of colorectal cancer
Jinzi ZHANG ; Mei YIN ; Weishuai ZHANG
Chinese Medical Ethics 2024;37(2):199-203
Colorectal cancer(CRC)is one of the common malignant tumors,and its incidence rate and mortality rate in China are rising.As a high-incidence malignant tumor,in the process of screening,diagnosis,and treatment,CRC not only has universal ethical issues similar to other diseases,but also has its unique ethical problems,including the accessibility of CRC screening and medical insurance reimbursement,privacy exposure and the materialization of doctor-patient relationship during consultation and physical examination,the balance between"killing"and"nurturing"of cancer cells in excessive diagnosis and treatment,as well as the physiological and psychological issues of patients caused by enterostomy.This paper summarized and analyzed the special ethical issues in the diagnosis and treatment of CRC,and proposed corresponding countermeasures and suggestions.
6.The dilemma and countermeasures faced by doctor-patient joint decision-making in high-risk procedures in general surgery
Yujia WANG ; Weishuai ZHANG ; Mei YIN
Chinese Medical Ethics 2024;37(10):1202-1206
High-risk procedures in general surgery usually carry high risks and uncertainties,and patients may face significant changes in their living and health conditions,which can easily lead to doctor-patient disputes.This paper summarized the obstacles to implementing joint decision-making of doctors and patients in high-risk procedures in general surgery,as well as explored the best way to incorporate joint decision-making into clinical practice.In the decision-making process,general surgeons and patients need to work together to overcome ethical dilemmas such as lack of communication and decision-making abilities,inadequate informed consent and cognitive abilities,as well as institutional and cultural issues.To help patients choose the most suitable treatment method and truly make decisions about high-risk procedures,it is recommended that China strengthen communication skills training for general surgeons,develop and utilize decision-making support tools,and simultaneously supported multiple parties,to provide a good incubation soil for the implementation of joint decision-making of doctors and patients in general surgery.
7.Establishment of goat limbal stem cell strain expressing Venus fluorescent protein and construction of limbal epithelial sheets.
Jiqing YIN ; Wenqiang LIU ; Chao LIU ; Guimin ZHAO ; Yihua ZHANG ; Weishuai LIU ; Jinlian HUA ; Zhongying DOU ; Anmin LEI
Chinese Journal of Biotechnology 2010;26(12):1636-1644
The integrity and transparency of cornea plays a key role in vision. Limbal Stem Cells (LSCs) are precursors of cornea, which are responsible for self-renewal and replenishing corneal epithelium. Though it is successful to cell replacement therapy for impairing ocular surface by Limbal Stem Cell Transplantation (LSCT), the mechanism of renew is unclear after LSCT. To real time follow-up the migration and differentiation of corneal transplanted epithelial cells after transplanting, we transfected venus (a fluorescent protein gene) into goat LSCs, selected with G418 and established a stable transfected cell line, named GLSC-V. These cells showed green fluorescence, and which could maintain for at least 3 months. GLSC-V also were positive for anti-P63 and anti-Integrinbeta1 antibody by immunofluorescent staining. We founded neither GLSC-V nor GLSCs expressed keratin3 (k3) and keratinl2 (k12). However, GLSC-V had higher levels in expression of p63, pcna and venus compared with GLSCs. Further, we cultivated the cells on denude amniotic membrane to construct tissue engineered fluorescent corneal epithelial sheets. Histology and HE staining showed that the constructed fluorescent corneal epithelial sheets consisted of 5-6 layers of epithelium. Only the lowest basal cells of fluorescent corneal epithelial sheets expressed P63 analyzed by immunofluorescence, but not superficial epithelial cells. These results showed that our constructed fluorescent corneal epithelial sheets were similar to the normal corneal epithelium in structure and morphology. This demonstrated that they could be transplanted for patents with corneal impair, also may provide a foundation for the study on the mechanisms of corneal epithelial cell regeneration after LSCT.
Animals
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Cell Culture Techniques
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methods
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Cell Line
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cytology
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Epithelium, Corneal
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cytology
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metabolism
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Fluorescent Antibody Technique, Indirect
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Goats
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Limbus Corneae
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cytology
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Stem Cell Transplantation
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Stem Cells
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cytology
8.Discussion on the Doctor-patient Relationship Model in Psychiatry Based on the Szasz & Hollender’s Model of Doctor-patient Relationship
Die HU ; Ya’nan ZHENG ; Mei YIN ; Weishuai ZHANG
Chinese Medical Ethics 2023;36(9):1007-1011
Due to the particularity of mental diseases, doctor-patient relationship in psychiatric medicine is a subject that needs to be paid attention to. This paper focused on the discussion of the model of doctor-patient relationship in psychiatric medicine from the perspective of constructing a harmonious doctor-patient relationship. Based on the Szasz & Hollender’s Model of Doctor-patient Relationship and combined with the characteristics of psychiatric medicine, this paper discussed the applicable doctor-patient relationship models, namely, the shared participation model, the guidance-cooperation model, the active-passive model, and the protective-constraint model. The specific application of the shared participation model, the guidance-cooperation model, and the active-passive model in the psychiatric medicine context were introduced in detail, and the reasons and characteristics of the protective-constraint model added on the basis of Szasz & Hollender’s Model of Doctor-patient Relationship were elaborated. Meanwhile, the realization paths of the protective-constraint model in clinical practice were further explored, which included evaluating the behavioral capacity and consciousness state of patients with mental disorders, obtaining informed consent, and standardizing the use of intervention rights and withdrawal mechanisms. The discussion of this model will promote the improvement of doctor-patient relationship and the development of psychiatric medicine.