1.Advances in the treatment of platinum-resistant ovarian cancer with PARP inhibitors
Journal of International Oncology 2021;48(3):180-183
Poly ADP-ribose polymerase(PARP)inhibitor is a targeted biological agent for the treatment of ovarian cancer, which is mainly suitable for platinum-sensitive ovarian cancer patients. However, data from clinical trials showed that PARP inhibitors have certain therapeutic effect on platinum-resistant or platinum-refractory ovarian cancer patients. It may become a new hope for treatment of ovarian cancer patients in the future.
2.Surgical treatment for pulmonary carcinoid tumors: a single-center analysis of 62 patients
Feng YAO ; Jun ZHOU ; Chenxi ZHONG ; Yu YANG ; Heng ZHAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(4):233-236
ObjectiveTo evaluate prognostic factors and the surgical results of pulmonary carcinoid tumors.Methods We retrospectively reviewed the medical records of 62 patients who were diagnosed as pulmonary carcinoid tumors between January 2000 and October 2010 at Department of Thoracic Surgery,Shanghai Chest Hospital.The following information was available for each of the 62 patients:age,sex,pathological type,and TNM stage.ResultsThere were no operative death.The 3-year and 5-year survival rates after surgery were 92.1% and 77.8%,respectively.Of the 62 patients,42 were diagnosed as typical carcinoid tumor,and among them,4 patients (8.3%) had lymph node metastases.Their 3-year and 5-year survival rates were 97.8% and 94.7%,respectively.The remaining 20 patients were diagnosed as atypical carcinoid tumor,and among them,6 patients (37.5%) had lymph node metastases.Their 3-year and 5-year survival rates were 84.4% and 58.8%,which were statistically significant compared with typical carcinoid tumor( P =0.0047 ).There was significant difference in survival rate between the patients with lymph node metastases and the patients without lymph node metastases (P =0.0048).CondusionThe main risk factors affecting survival rate of those patients who were diagnosed as pulmonary carcinoid tumors were pathological types and lymph node metastases.
3.Wear matching performance of dental restoration materials oppositing to dentine
Chenxi LI ; Ruiying LIANG ; Yanping ZHAO ; Yanli XU ; He MENG
Journal of Practical Stomatology 2017;33(1):23-26
Objective:To compare the wear resistance between dentin and dental restoration material in vitro.Methods:The friction and wear behaviors of natural tooth dentin respectively against highly polished polymer ceramic,glass ceramic and zirconia were investigated in an artificial saliva test environment by UMT-2 friction and wear testing machine.Worn surface morphology was observed by scanning electron microscopy(SEM),roughness was measured by roughness instrument,the rigidity value was weighed by electronic balance.Results:The roughness of the 3 materials was similar to that of dentin(P > 0.05),the rigidity of dentin was less than that of the 3 materials (P < 0.05).After friction and wear test,the abrasion quantity of dentin respectively against the 3 materials was less than that of the materials (P < 0.05).There was positive correlation between the wear loss and the hardness of the 3 materials and dentin(r =0.846).The mass loss of the dentin against Poly Ceramic after grinding abrasion was the closest among the 3 materials.Conclusion:Different materials have varying degrees abrasion against dentine.The Polymer Ceramic has closer abrasion performancez with dentin than the other 2 materials.
4.The clinical effect of Qingfei-Jiedu decoction for the female patients with acne of lung and stomach heat type
Tao ZHOU ; Lan YANG ; Qing LIU ; Chenxi ZHAO ; Fengchuan ZHANG
International Journal of Traditional Chinese Medicine 2017;39(7):597-600
Objective To evaluate the efficacy of Qingfei-Jiedu decoction in the treatment of Acne. Methods A total of 93 female patients with acne were randomly divided into 3 groups according to random number table, 31 in each group. The observation group took the oral Qingfei-Jiedu decoction, and the Chinese medicine control group took the oral tanshinone capsule, and the western medicine control group took the oral acetic acid ring propyl alcohol progesterone. All 3 groups were treated for 4 weeks. The levels of serum dihydro (DHT), IL-6 and IL-8 were measured by ELISA. The changes of the lesions before and after treatment were observed and the adverse events were recorded during the treatment. The clinical effect was evaluated. Results After treatment, the serum DHT (56.94 ± 15.74 pg/ml vs. 74.48 ± 18.53 pg/ml, t=2.089), IL-6 (22.84 ± 11.77 pg/ml vs. 30.37 ± 14.50 pg/ml, t=2.135), IL-8 (22.64 ± 7.38 pg/ml vs. 29.54 ± 9.65 pg/ml, t=2.057) in the observation group were significantly lower than those in the Chinese medicine control group (P<0.05). After treatment, the disappearance rate of skin lesions (65.4% ± 15.0% vs. 44.7% ± 12.9%, 42.7% ± 13.6%, F=6.862) and comprehensive syndrome effective rate (57.2% ± 12.6% vs. 46.3% ± 12.8%, 44.8% ± 11.7%, F=5.322) in the observation group were significantly higher than those in the other two control groups (P<0.05). The observation group and the traditional Chinese medicine control group did not have adverse events, but the western medicine control group showed one case nausea. Conclusions The Qingfei-Jiedu decoction can reduce the level of serum DHT, IL-6 and IL-8 in female patients with acne vulgaris, and improve the skin lesion disappearance rates and comprehensive syndrome rates.
5.Perceived stress and mild cognitive impairment
Chenxi GE ; Chen ZHANG ; Lina WANG ; Xia ZHAO
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(2):180-186
Mild cognitive impairment is a transitional state between normal aging and dementia, which is the best intervention window to delay cognitive decline.As one of the adjustable risk factors affecting cognitive function, perceived stress significantly increases the risk of cognitive impairment by causing hypothalamic-pituitary-adrenal axis dysfunction and psychological disorders.Therefore, perceived stress management will become a new hot spot in the research and practice of non-drug intervention techniques for cognitive impairment.This paper reviews the current situation of perceived stress in MCI population, the relationship between perceived stress and cognitive function, and the evaluation techniques of MCI individual perceived stress.Further more, this paper summarizes the relevant influencing factors of perceived stress based on stress attribution model, and comments on the action mechanism and practical enlightenment of perceived stress intervention program on cognitive function management, in order to provide theoretical reference for cognitive function management of MCI population.
6.TCM practitioners’ attitudes and perceptions regarding the use of Ephedra sinica Stapf: An observational study
Aiwen Chang ; Xiaopeng Zhao ; Lin Zhang ; Sijia Zhao ; Zhongyi Pan ; Chenxi Song ; Yanling Fu
Journal of Traditional Chinese Medical Sciences 2024;11(4):435-442
Objective:
To understand the attitudes and perceptions of traditional Chinese medicine (TCM) practitioners in Beijing TCM hospitals regarding the use of Ephedra sinica Stapf (E. sinica, Ma Huang).
Methods:
A two-stage cross-sectional study was conducted using a questionnaire survey of TCM practitioners in Beijing TCM hospitals between April 2023 and March 2024. The questionnaire included demographic information, the clinical background of TCM practitioners, and the clinical application of E. sinica. Logistic regression analysis was used to analyze the relevant influencing factors when using E. sinica.
Results:
Of the 465 questionnaires collected, 441 were valid. Among these, 84.81% (374/441) reported having used E. sinica in clinical practice at least once. The commonly used doses of E. sinica—excluding the pediatric department—were 10 g for high doses, 6 g for medium, and 3 g for low. The three most frequently used formulas for E. sinica included Maxing Shigan decoction, Mahuang decoction, and Xiao Qing Long decoction. The most common TCM patterns treated with a high dose of E. sinica were wind-cold exterior pattern, wind-cold invading the lung, and wind and water combat with meridians congealed by cold. The top three Western medical diagnoses when using E. sinica for treatment were common cold, pneumonia, and upper respiratory tract infections. Nearly half of the respondents reported experiencing adverse reactions from the oral administration of E. sinica, with the most common being palpitations, insomnia, and restlessness. Starting with a low dose and gradually increasing it as appropriate was identified as an effective approach.
Conclusion
This study investigated the attitudes and perceptions of TCM practitioners in Beijing TCM hospitals regarding the dose–efficacy–adverse reaction relationship of E. sinica, providing a reference for the safe and effective clinical use of E. sinica.
7.Clinical results of video-assisted thoracoscopic surgery for pulmonary pure ground-glass opacity
Chenxi ZHONG ; Heng ZHAO ; Jicheng TANTAI ; Feng YAO ; Limin FAN ; Wenhu CHEN
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(4):227-229
ObjectiveTo retrospectively investigate the clinical results of video-assisted thoracoscopic surgery for pulmonary pure ground-glass opacity.MethodsThe clinical data of 45 patients with pGGO underwent video-assisted thoracoscopic surgery were collected.The gender constitution,age,smoking status,surgical procedures,lesion size,histological types of tumor,lymph node metastasis and prognosis were retrospectively analyzed.ResultsThe numbers of females and non-smokers were significantly larger than those of males and smokers.All 45 patients underwent video-assisted thoracoscopic surgery.37 patients of solitary pGGO were all operated with cure intention.27 of the 37 patients received local resection ( wedge resection in 18 or segment resection in 9),and the other 10 patients underwent lobectomy.There are 8 patients of multiple nodes.Amongthese,6 were operated with cure intention,while 2 received VATS biopsy.Pathological examinations after operation revealed that there were 31 cases of bronchioloalveolar carcinoma and 14 cases of atypical adenomatous hyperplasia.And there was no lymph node metastasis.The diameters of bronchioloalveolar carcinoma lesions were significantly longer than those of atypical adenomatous hyperplasia lesions( P < 0.05 ).Patients were followed up for 4 months to 6 years,and all survived without local recurrence and distant metastasis.ConclusionThe diameters of bronchioloalveolar carcinoma lesions are longer than those of atypical adenomatous hyperplasia lesions.Video-assisted thoracoscopic sublobectomy for pulmonary pure ground-glass opacity may achive excellent clinical results.Computed tomography-guided localization is a useful,safe procedure.
8.Risk factors for surgical site infection of hepatobiliary and pancreatic sur-gery
Chenxi LIN ; Xinmao ZHAO ; Hua WU ; Xiaoning YUAN ; Shaoli WANG ; Xuesong YANG
Chinese Journal of Infection Control 2014;(10):584-587
Objective To study the risk factors for surgical site infections (SSIs)in patients with hepatobiliary and pancreatic surgery.Methods Sixty patients who received hepatobiliary and pancreatic surgery and suffered SSIs from January 2006 to January 2010 were selected as infections group,119 patients who also received hepatobiliary and pancreatic surgery but didn’t develop infection were as control group,retrospective investigation was per-formed.Results Univariate analysis revealed the associated factors for post-operative SSIs were age,history of car-diocerebrovascular disease,history of abdominal surgery,history of smoking,preoperative anemia,abnormal pre-operative coagulation and blood sugar,pre-operative infection,use of laparoscope,incision type,duration of opera-tion,ASA score,post-operative drainage and dressing chang within 24 hours of post-operation(all P<0.05).Mult-ivariate analysis revealed that abdominal surgery history (OR95%CI:3.09 [1.21 -7.91 ]),high NISS score (OR95%CI:6.18[2.41-15.85])were risk factors of SSIs in patients with hepatobiliary and pancreatic surgery, and dressing chang within 48 hours of post-surgery were protective factor (OR95%CI:3.81 [1.56-9.34]). Conclusion History of abdominal surgery and high score of NISS are major risk factors for SSIs in patients with hepatobiliary and pancreatic surgery.To reduce the risk of SSIs,blood glucose should be actively adj usted,anemia and coagulation abnormalities should be treated;duration of operation should be shortened as far as possible,wound should be kept clean and dressing should be changed timely after surgery.
9.Roles of liver sinusoidal endothelial cells in liver diseases
Chenxi ZHANG ; Mianli BIAN ; Xingran CHEN ; Shifeng ZHAO ; Huanhuan JIN ; Qin CHEN ; Feng ZHANG ; Shizhong ZHENG
Chinese Pharmacological Bulletin 2017;33(2):149-152,153
Liver sinusoidal endothelial cells (LSECs) are the highest proportion of liver non-parenchymal cells with fenestrae structure and high endocytic ability maintaining liver homeostasis and playing an indispensable role in the physiology and patholo-gy of the liver.LSECs are involved in the regulation of patholog-ical process in nonalcoholic fatty liver disease(NAFLD),alco-holic fatty liver(AFL),hepatocellular carcinoma(HCC),liverregeneration and liver fibrosis mainly via antiinflammation,endocytosis,secretion of angiocrine signals and maintaining thequiescence phenotype of HSCs.This review highlights the physiological function of LSECs and the different roles in different pathological conditions,which aims to provide a new perspectivefor the treatment of liver diseases through targeting LSECs.
10.Study on mechanism of NOXs in liver fibrosis
Mianli BIAN ; Xingran CHEN ; Chenxi ZHANG ; Huanhuan JIN ; Shifeng ZHAO ; Feng ZHANG ; Shizhong ZHENG
Chinese Pharmacological Bulletin 2016;32(11):1490-1493
Nicotinamide adenine dinucleotide phosphate oxidase ( NOXs) contributes to the production of reactive oxygen species ( ROS) in liver fibrosis, resulting in the activation of endoplas-mic reticulum stress ( ERS ) and IRE1α-XBP1 signaling path-way. ROS is a series of oxygen metabolites and its derivatives, produced by the single electron reduction of molecular oxygen ( O2 ) , including superoxide anion ( O2- ) , hydroxyl radical (-OH) , hydrogen peroxide ( H2 O2 ) , hypochlorite ion ( OCl-) and so on. They can interact with a large number of molecules, including small inorganic molecules, proteins, lipids, carbohy-drates and nucleic acids, resulting in lipid peroxidation of cell damaging molecules. And as a second messenger, ROS can also affect the proliferation and activation of HSC in liver fibrosis, and induce the hepatocyte apoptosis through a variety of cellular signal transduction. Here we review the current status of the study on the mechanism of NOXs in liver fibrosis.