1.Research progress on molecular biomarkers related to polypoid choroidal vasculopathy
Jingjing LIU ; Yangyan XIAO ; Xia HUA
International Eye Science 2025;25(5):754-759
Polypoid choroidal vasculopathy(PCV)is associated with poor visual prognosis in its natural course and is more prevalent in Asian populations. Despite advancements in optical coherence tomography(OCT)and OCT angiography(OCTA)that have significantly improved morphological diagnostic capabilities, imaging biomarkers are limited by temporal resolution constraints and fail to elucidate molecular mechanisms underlying vascular angiogenesis, inflammation, genetic factors, and extracellular matrix(ECM)remodeling. This review synthesizes current research on molecular biomarkers associated with PCV, focusing on its core pathological mechanisms. These biomarkers provide crucial insights into disease pathogenesis to inform precision prevention, dynamic disease monitoring, and therapeutic response prediction. Furthermore, this article proposes the integration of multi-omics data(genomics, proteomics, and radiomics)to establish a multimodal hierarchical diagnostic-therapeutic model. This framework will guide risk stratification, real-time disease assessment, and personalized treatment strategies, advancing the development of a precision medicine framework for PCV management.
2.Advances in research on shift work associated circadian rhythm disruption and obesity
Yangyan LIU ; He YU ; Lilan HUANG ; Jing CUI ; Yahui LU ; Ying FANG
Journal of Environmental and Occupational Medicine 2024;41(10):1198-1203
Circadian rhythm disruption is a universal phenomenon that is associated with a combination of internal and external factors, with internal factors referring to disturbances in the intrinsic regulatory mechanisms of sleep-wake behavior, and external factors including changes in sleep habits, severe sleep deprivation, shift work, social jet lag, prolonged exposure to nighttime light, and late nighttime eating. Shift work, as a common occupational factor, can lead to disruption of the central/ peripheral biological clock which regulates the expression of almost the entire genome, and the disruption of the biological clock can lead to genetic variants, hormonal secretion abnormalities, insulin resistance, oxidative stress, and systemic inflammation, which are risk factors for obesity. In the context of rapid advancement of global economy and industrialization, the prevalence of simple obesity in the traditional cognitive category is increasing in a linear trend, while the incidence of abdominal obesity, which is closely related to metabolic disorders, is also showing an increasing trend. In recent years, the mechanism of circadian rhythm disorder and obesity associated with shift work has attracted much attention, and this article summarized the latest research progress, aiming to provide a basis for the prevention and treatment of obesity caused by circadian rhythm disruption due to shift work.
3.The preparation and reliability and validity test of the knowledge-attitude-practice questionnaire for pediatric ICU nurses to prevent unplanned extubation of tracheal intubation
Hang XIAO ; Dan LIU ; Yangyan LI ; Xinhong CHEN
Chongqing Medicine 2024;53(10):1531-1536
Objective To investigate the knowledge,attitude and behavior of pediatric ICU nurses on preventing unplanned extubation(UEX).Methods The pre-test paper was prepared by the combination of literature review and expert consultation.The convenience sampling method was used to select 237 pediatric ICU nurses from four tertiary hospitals(including one children's hospital and three general hospitals)to con-duct a survey.The project analysis and reliability and validity test of the pre-test questionnaire were carried out to form a formal questionnaire.Results The questionnaire included 41 items,including 13 items of knowl-edge dimension,nine items of attitude dimension and 19 items of behavior dimension.The average content va-lidity index of knowledge,attitude and behavior dimensions was 0.921,0.996 and 0.998,respectively,and the content validity index of each item was 0.852-1.000.The Cronbach's α coefficients of knowledge,behavior and attitude were 0.911,0.946 and 0.944 respectively,and the total Cronbach's α coefficient of the question-naire was 0.953.The split-half reliability of knowledge,behavior and attitude dimensions was 0.710,0.931 and 0.859,and the total split-half reliability of the questionnaire was 0.695.Conclusion The questionnaire of knowledge,attitude and behavior of pediatric ICU nurses in preventing tracheal intubation UEX has good reli-ability and validity,and can be used as an evaluation tool for pediatric ICU nurses'cognition and behavior compliance in preventing tracheal intubation UEX.
4.A case of type A botulinum toxin injection poisoning treated with antitoxin
Xuefei LIU ; Yanglong ZHU ; Liwen YANG ; Hongyue LIAO ; Peidong GAN ; Yangyan YI
Chinese Journal of Plastic Surgery 2023;39(2):187-189
Botulinum toxin is a potent protein toxin produced by Clostridium botulinum. It acts directly on the brain nerve nucleus and peripheral neuromuscular junction, blocking the release of acetylcholine and thereby affecting nerve impulse transmission, ultimately leading to muscle paralysis. Mild cases may present with ocular muscle involvement, whereas severe cases may involve dysphagia, general paralysis, respiratory depression, and even death. This article reports on a patient who experienced severe poisoning symptoms after using type A botulinum toxin obtained through informal channels. The patient was treated with antitoxin on the 13th day after symptoms onset and achieved a significant improvement in their condition.
5.A case of type A botulinum toxin injection poisoning treated with antitoxin
Xuefei LIU ; Yanglong ZHU ; Liwen YANG ; Hongyue LIAO ; Peidong GAN ; Yangyan YI
Chinese Journal of Plastic Surgery 2023;39(2):187-189
Botulinum toxin is a potent protein toxin produced by Clostridium botulinum. It acts directly on the brain nerve nucleus and peripheral neuromuscular junction, blocking the release of acetylcholine and thereby affecting nerve impulse transmission, ultimately leading to muscle paralysis. Mild cases may present with ocular muscle involvement, whereas severe cases may involve dysphagia, general paralysis, respiratory depression, and even death. This article reports on a patient who experienced severe poisoning symptoms after using type A botulinum toxin obtained through informal channels. The patient was treated with antitoxin on the 13th day after symptoms onset and achieved a significant improvement in their condition.
6.Role and Mechanism of Chinese Medicinal Materials and Their Compound Formulas with Effects of Replenishing Qi, Activating Blood, and Dispelling Stasis in Prevention and Treatment of Heart Failure
Jiaping CHEN ; Xinglong MIU ; Miaomiao DING ; Yangyan SU ; Changxiao LIU ; Jiang MA ; Xin HE
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(21):221-234
Heart failure with high prevalence is the endpoint of many cardiovascular diseases. Once diagnosed, patients usually need lifelong medication, which seriously affects their quality of life. The drugs commonly used to treat heart failure include angiotensin-converting enzyme inhibitors, beta-blockers, aldosterone receptor antagonists, and diuretics. However, the long-term use of those drugs can lead to side effects such as hypotension, depletion of body fluid, and electrolyte imbalance and even increase mortality. According to the theory of traditional Chinese medicine (TCM), Qi deficiency and blood stagnation is the major cause of heart failure and when Qi is not moving, blood is not flowing. Therefore, the TCM clinical treatment of heart failure uses the Chinese medicinal materials which replenish Qi, activate blood, and dispell stasis to treat both internal cause and external symptoms. Recent studies have demonstrated that Chinese herbal medicines such as Astragali Radix, Ginseng Radix et Rhizoma, Notoginseng Radix et Rhizoma, Salviae Miltiorrhizae Radix et Rhizoma, Angelicae Sinensis Radix, as well as the compound formulas such as Buyang Huanwutang, Simiao Yongantang, Qili Qiangxin capsules, and Qishen Yiqi drops, play a significant role in the prevention and treatment of heart failure via replenishing Qi, activating blood, and dispelling stasis. Inhibition of oxidative stress and inflammatory responses, mitigation of myocardial fibrosis, improvement of calcium cycling, and protection of mitochondrial function represent the key mechanisms for the treatment of heart failure with Chinese medicinal materials. Focusing on the pathogenic mechanisms and signaling pathways of heart failure, this paper systematically describes the pharmacological effects, molecular mechanisms, and research progress in the clinical application of Chinese medicinal herbs with effects of replenishing Qi, activating blood, and dispelling stasis and their compound formulas in the prevention and treatment of heart failure, aiming to provide scientific evidence for the development and clinical use of anti-heart failure Chinese medicinal materials.
7.A case of infantile occult primary intestinal lymphangiectasia
Yangyan XIU ; Xiuhua LIU ; Mingzhen LI ; Jingfang CHEN
Clinical Medicine of China 2020;36(3):278-281
Objective:In order to improve the understanding of the clinical, endoscopic and pathological characteristics of occult primary intestinal lymphangiectasia in infants, and to reduce misdiagnosis and missed diagnosis, we analyzed the clinical manifestations and diagnosis and treatment related data of a case of primary intestinal lymphangitis in Xiamen Children′s Hospital.The patient was admitted to the hospital with bronchopneumonia, mild diarrhea and edema, without decreasing in the number of peripheral blood lymphocytes, showing hypoproteinemia.Albumin infusion failed to alleviate hypoalbuminemia, and then gastroscopy showed that the duodenal segment had white millet like granular protrusion with different sizes and dense density, and the mucosa had extensive leukoplakia like lesions.Pathological examination showed that the small intestinal lymphadenectasia was obvious, and then the small intestinal lymphadenectasia was confirmed.After diagnosis, albumin was infused every two days for two consecutive courses and portagen medium chain fatty acid milk powder was fed.After treatment, the total protein and albumin in the plasma basically rose to the normal level, and the color Doppler ultrasonography of abdomen and chest showed that both pleural effusion and bilateral pulmonary effusion had been absorbed.The retrospective analysis of this case shows that for infants with dropsy caused by the decrease of plasma albumin and globulin, the possibility of excessive protein consumption caused by liver and kidney disease, tumor, tuberculosis and other chronic diseases should be excluded, and small intestinal lymphadenopathy should be considered, gastroscopy should be performed as soon as possible, pathological biopsy should be further improved, early diagnosis and treatment should be carried out as soon as possible And diet intervention treatment to avoid serious consequences caused by not timely handling.
8.Status, problems and improvement measures of health insurance reimbursement of national negotiated drugs used in outpatients
Ye CHEN ; Jinxi DING ; Ting LIU ; Di TANG ; Fang WU ; Liping WU ; Wanting DUAN ; Yangyan XU
Journal of China Pharmaceutical University 2020;51(5):628-634
The access negotiations of National Reimbursement Drug List (NRDL) in China from 2017 to 2019 effectively improved the availability and affordability of high-value innovative drugs. However,the actual outpatient reimbursement of most negotiated drugs is lower,which affects the patients" health insurance funds. In this paper,97 negotiated drugs in 337 overall planning cities were selected as samples to analyze the outpatient reimbursement for negotiated drugs. The results showed that the reimbursement level of 40 negotiated drugs was less than 50% in over 70% cities,which can be mainly interpreted as absence or imperfection of outpatient reimbursement policies for special diseases. Finally,this paper puts forward suggestions and protocols for improving the outpatient medical insurance through realizing outpatient overall planning,improving outpatient reimbursement policies for special diseases,and exploring innovative payment,ensuring the achievement of the access to NRDL.
9.Construction of digital three-dimensional models of renal stones and virtual surgery simulation.
Yuanbo CHEN ; Hulin LI ; Chunxiao LIU ; Kai XU ; Yangyan LIN ; Susu BAO ; Fengping PENG ; Jiahui PAN
Journal of Southern Medical University 2013;33(2):267-270
OBJECTIVETo construct three-dimensional (3D) models of renal stones and perform percutaneous nephrolithotomy (PCNL) virtual surgery simulation. Methods CT images were obtained from 8 patients with renal stones. Images segmentation and reconstruction were performed using MIMICS 10.0 software to construct the 3D model of the renal stones, which provided the anatomical relationships between the kidney and the adjacent organs. The optimal PCNL virtual surgery simulation for each individual case was performed using FreeForm Modeling System on the basis of the 3D model.
RESULTSEight 3D models of renal stone were constructed. The 3D model of the renal stones represented the interrelationships of the stones, intrarenal vessel, and the collecting system with the adjacent anatomical structures. Individualized PCNL virtual surgery simulations including percutaneous puncture, dilatation and pneumatic lithotripsy were performed successfully in all the 8 3D models.
CONCLUSIONDigital 3D model of renal stone provides the reliable and comprehensive imaging information for surgical design, and PCNL virtual surgery simulation has important clinical significance to improve the stone clearance rate and reduce the surgical complications.
Adult ; Female ; Humans ; Imaging, Three-Dimensional ; Kidney Calculi ; diagnostic imaging ; surgery ; Male ; Middle Aged ; Nephrostomy, Percutaneous ; methods ; Software ; Tomography, Spiral Computed ; User-Computer Interface
10.Single-port laparoscopic surgery for radical nephrectomy: report of 22 cases.
Hulin LI ; Abai XU ; Kai XU ; Binshen CHEN ; Chunxiao LIU ; Shaobo ZHENG ; Yawen XU ; Ping FANG ; Kai GUO ; Yangyan LIN ; Ruilong ZHU
Journal of Southern Medical University 2012;32(2):274-276
OBJECTIVE[corrected] To evaluate the method and technique of single-port laparoscopic radical nephrectomy.
METHODSForm January 2009 to September 2011, 22 patients with renal carcinoma were treated with single-port laparoscopic radical nephrectomy. An incision about 5 cm in length was made through the umbilicus or in the postaxillary line under the 12th rib to establish the peritoneal or retroperitoneal working space. A single-port cannulation was deployed and the operation was carried out using standard and crooked laparoscopic equipment.
RESULTSThe operations were completed successfully in all the 22 cases without conversion to open surgery, but additional trocar was needed in 5 cases. The mean operative time of radical nephrectomy was 150 min (90-240 min). The mean postoperative hospital stay was 7.6 days (3-15 days). The operation left a roughly 5-cm-long scar in all the cases.
CONCLUSIONSingle-port laparoscopic radical nephrectomy is safe and feasible with good cosmetic effect and shows much potential in radical resection of renal carcinoma.
Adult ; Aged ; Female ; Humans ; Kidney Neoplasms ; surgery ; Laparoscopy ; methods ; Male ; Middle Aged ; Nephrectomy ; methods ; Young Adult

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