1.Evaluation of reductive method of lower cervical bilateral facet dislocations
Orthopedic Journal of China 2006;0(24):-
[Objective]To discuss the reductive method and clinical result of lower cervical bilateral facet dislocation.[Method]Totally 22 cases with lower cervical bilateral facet dislocation were treated from 2000 to 2006.According to resecting the injuried disc annulus pre-reduction or not,the patients were divided to 2 groups.The variation of neurological fauction level were classified according to ASIA grade system.Among 13 cases examined by MRI,There were disc herniated in 9 cases(69%).[Result]The average time of follow-up was 18 months.Neurological symptom became more severe in 1 cases which injured disc annulus weren't resected in-reduction and in 3 cases which injured disc weren't resected post-reduction.ASIA grade deteriorated: 1 case upgraded from C to A,1 case upgraded from C to B,2 case upgraded C to D.But no one occurred in another group.[Conclusion]A lot of lower cervical bilateral facet dislocations have associated disc herniations.If injured disc isn't resected,the neurological symptom may become more severe.Resection injured disc,reduction,bone grafting can be settled in one time,in order to avoid secondary spine cord injury.
2.Clinical research on application of simplified Chinese version NU-DESC in evaluating ICU delirium
Yanhua NING ; Rulin WANG ; Lin ZHANG
Chinese Journal of Practical Nursing 2014;30(7):18-20
Objective To investigate the clinical value of simplified Chinese version NU-DESC in assessment of ICU delirium in domestic ICU,and provide easy ICU delirium assessment tool for clinical nurses.Methods We used simplified Chinese version NU-DESC to assess patients in domestic ICU from July to September 2011,and compared with the gold standard DSM-IV diagnosis results.Their validity,reliability and effectiveness were evaluated to analyze the application value of NU-DESC in ICU.Results The area under the ROC curve of simplified Chinese version of Nu-DESC was 0.951,the sensitivity was 82%,the specificity was 90%,the false negative rate was 18%,the false positive rate was 10%,Youden's index was 0.72,the positive likelihood ratio was 7.99,the negative likelihood ratio was 0.20,the agreement rate was 87%,Kappa value was 0.71,the positive predictive value was 77%,the negative predictive value was 92%.Conclusions The simplified Chinese version NU-DESC can easily be understood,used and accepted by nurses.They can be used as an assessment tool for nurses to judge ICU delirium for ICU patients.
3.THE STUDIES ON THE ORGANIC ACID AND GAS PRODUCED BYPSEUDOMONAS 23-1 THROUGH METABOLIZING HYDROCARBON
Huxin DIAO ; Jian WANG ; Xinping ZHANG ; Fenglai LIANG ; Rulin LIU
Microbiology 2001;(1):16-18
When growing and metabolizing through carbon resources of hydrocarbon, Pseudomonas 23-1 produces acidicacid and gas. The amount of acidic acid is 0. 015mol/L The output of gas,which thd main composition is CO2 and CH4, is 20ml/L. The organic acid and gas is the important reasons of decreasing the viscosity, enhancing the flow and improving the product of oil.
4.Comparison of ESI-and APCI-LC-MS/MS methods:A case study of levonorgestrel in human plasma☆
Rulin WANG ; Lin ZHANG ; Zunjian ZHANG ; Yuan TIAN
Journal of Pharmaceutical Analysis 2016;6(6):356-362
Electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) techniques for liquid chromatography–tandem mass spectrometry (LC–MS/MS) determination of levonorgestrel were evaluated. In consideration of difference in ionization mechanism, the two ionization sources were compared in terms of LC conditions, MS parameters and performance of method. The sensitivity for detection of levonorgestrel with ESI was 0.25 ng/mL which was lower than 1 ng/mL with APCI. Matrix effects were evaluated for levonorgestrel and canrenone (internal standard, IS) in human plasma, and the results showed that APCI source appeared to be slightly less liable to matrix effect than ESI source. With an overall consideration, ESI was chosen as a better ionization technique for rapid and sensitive quantification of levonorgestrel. The optimized LC–ESI–MS/MS method was validated for a linear range of 0.25–50 ng/mL with a correlation coefficient≥0.99. The intra-and inter-batch precision and accuracy were within 11.72%and 6.58%, respectively. The application of this method was demonstrated by a bioequivalence study following a single oral administration of 1.5 mg levonorgestrel tablets in 21 Chinese healthy female volunteers.
5.Determination of torasemide in human plasma and its bioequivalence study by high-performance liquid chromatography with electrospray ionization tandem mass spectrometry$
Lin ZHANG ; Rulin WANG ; Yuan TIAN ; Zunjian ZHANG
Journal of Pharmaceutical Analysis 2016;6(2):95-102
A sensitive and selective method using high-performance liquid chromatography coupled with elec-trospray ionization tandem mass spectrometry (HPLC–ESI–MS) to determine the concentration of tor-asemide in human plasma samples was developed and validated. Tolbutamide was chosen as the internal standard (IS). The chromatography was performed on a Gl Sciences Inertsil ODS-3 column (100 mm ? 2.1 mm i.d., 5.0 mm) within 5 min, using methanol with 10 mM ammonium formate (60:40, v/v) as mobile phase at a flow rate of 0.2 mL/min. The targeted compound was detected in negative io-nization at m/z 347.00 for torasemide and 269.00 for IS. The linearity range of this method was found to be within the concentration range of 1–2500 ng/mL (r?0.9984) for torasemide in human plasma. The accuracy of this measurement was between 94.05%and 103.86%. The extracted recovery efficiency was from 84.20% to 86.47% at three concentration levels. This method was also successfully applied in pharmacokinetics and bioequivalence studies in Chinese volunteers.
6.STUDIES ON A BIOSURFACTANT PODUCED BY PSEUDOMONAS 23-1 THROUGH METABOLIZING HYDROCARBON
Huxin DIAO ; Jian WANG ; Xinping ZHANG ; Fenglai LIANG ; Rulin LIU
Microbiology 1992;0(06):-
Pseudomonas 23-1 Can metabolize hydrocarbon to produce the surfactant which is glycolipid outside the cell. The glycolipid, whose content is 1.25g / L, is composed of rhamnose and tencarbon fatry acid. It's critical micella concentration is 200g/L. It has the good ability to emulsify the oil. The main reason of improving the product of oil, decreasing the viscosity and enhancing the flow of oil is the effect of surfastant-glycolipid.
7.Identification of impurities in nafamostat mesylate using HPLC-IT-TOF/MS: A series of double-charged ions
Yuxin ZHANG ; Lufan AN ; Lin ZHANG ; Rulin WANG ; Yuan TIAN ; Zunjian ZHANG
Journal of Pharmaceutical Analysis 2020;10(4):346-350
Nafamostat mesylate is a serine protease inhibitor used in the treatment of acute pancreatitis. The im-purities in nafamostat mesylate, the active pharmaceutical ingredient (API), were profiled via high performance liquid chromatography tandem ion trap coupled with time-of-flight mass spectrometer (HPLC-IT-TOF/MS). The chromatography was performed on an ACE-3 C18 column (200 mm × 4.6 mm, 3μm) using methanol and 0.1% formic acid in purified water as mobile phase at a flow rate of 1.0 mL/min. The ions were detected by IT-TOF/MS with a full-scan mass analysis from m/z 100 to 800. In total, eleven impurities were detected in nafamostat mesylate API. The impurity profile was estimated based on the HPLC-IT-TOF/MS data, including accurate masses, MSn fingerprints of fragmentation pathways and a series of double-charged ions. Finally, seven impurities were identified and reported for the first time. The results will provide technical support for the quality control and clinical safety of nafamostat mesylate.
8.Prospective cohort study of the association of cardiovascular disease with triglyceride glucose index and triglyceride glucose-related indicators
Shulin WANG ; Xianghui ZHANG ; Heng GUO ; Jia HE ; Xinping WANG ; Rulin MA ; Shuxia GUO
Chinese Journal of Epidemiology 2023;44(12):1943-1949
Objective:To investigate the association of cardiovascular diseases (CVD) with triglyceride glucose index (TyG) and TyG-related indicators in Uyghur populations of The Xinjiang Production and Construction Corps.Methods:Based on the cohort of the Uygur population of The Xinjiang Production and Construction Corps, 11 833 study subjects were included. The Kaplan-Meier method was used to estimate the cumulative incidence of CVD in each quartile of TyG and TyG-related indicators. Cox proportional hazards regression model was used to evaluate the relationship between TyG and CVD, TyG-related indicators and CVD. Framingham CVD risk score model (Framingham model) was used to evaluate whether the addition of TyG and TyG-related indicators could improve the predictive ability of the model. The potential mediating role of the TyG in the association between obesity and CVD was examined through mediation effect analysis.Results:The average age of the subjects was (37.00±13.67) years-old, and 51.0% were male. The median follow-up time was 5.67 years, with 1 288 CVD events. The cumulative incidence of CVD increased with the increase of TyG and TyG-related indicators quartiles, and compared with the Q1 group, the risk of CVD in the Q4 group of TyG, TyG-BMI, and TyG-WHtR increased by 20% ( HR=1.20, 95% CI: 1.01-1.42), 77% ( HR=1.77, 95% CI: 1.46-2.16) and 68% ( HR=1.68, 95% CI: 1.36-2.09), respectively. After adding TyG, TyG-BMI, and TyG-WHtR to the Framingham model, respectively, the model's area under the curve, net reclassification improvement, and integrated discrimination improvement were improved. In the association between BMI, WHtR, and CVD, the proportion of mediating effects mediated by the TyG index was 10.55% and 11.50%. Conclusions:Elevated levels of TyG and TyG-related indicators were strongly associated with the risk of CVD in the Uyghur population of The Xinjiang Production and Construction Corps, with TyG-BMI being the most closely correlated with CVD. Early monitoring of TyG-BMI helps identify high-risk groups of CVD.
9.Incidence and influencing factors of non-alcoholic fatty liver disease among rural Uyghur ethnic group residents in Xinjiang Production and Construction Corps
Caiyin LI ; Shuxia GUO ; Yu LI ; Heng GUO ; Rulin MA ; Xianghui ZHANG ; Xinping WANG ; Yunhua HU ; Keerman MULATIBIEKE ; Shipeng GAO ; Jia HE
Chinese Journal of Epidemiology 2024;45(8):1149-1157
Objective:To investigate the incidence characteristics and influencing factors of non-alcoholic fatty liver disease (NAFLD) in rural Uyghur ethnic group residents in Xinjiang Production and Construction Corps and to provide scientific evidence for early identification and prevention of NAFLD for residents.Methods:A total of 10 158 participants were included from the Xinjiang Uygur ethnic group population cohort. A prospective cohort study and Cox proportional hazards regression model analysis were used to explore the influencing factors and clustering of NAFLD, and the dose-response relationship between related biochemical indicators and the risk of NAFLD was studied using a restricted cubic spline.Results:The cumulative incidence rate of NAFLD was 6.9%, and the incidence density of NAFLD was 12.06/1 000 person-years. The incidence density of NAFLD in females was higher than in males (14.72/1 000 person-years vs. 9.17/1 000 person-years, P<0.001). The incidence density of NAFLD gradually increased with age in the total population, both men and women (all P<0.001). In the general population, an education level of junior high school or above was a protective factor for NAFLD, while older age, divorce, widowhood, overweight, obesity, hypertension, increased glomerular filtration rate, decreased HDL-C, increased LDL-C, and increased ALT were risk factors for NAFLD. Estimated glomerular filtration rate (eGFR), HDL-C, LDL-C, and ALT were non-linearly correlated with the incidence of NAFLD, and there was a significant dose-response relationship between them. Only 19.1% of residents had no NAFLD risk factors; over 80.9% had ≥1 NAFLD risk factors. The risk of NAFLD increased with the number of risk factors. Conclusions:The incidence of NAFLD in rural Uygur ethnic group residents in Xinjiang Production and Construction Corps was relatively low, but most residents had one or more risk factors for NAFLD. Prevention and control of NAFLD in this population cannot be ignored. In addition, people of older age, divorced or widowed, low education level, overweight or obese, hypertension, and abnormal eGFR, HDL-C, LDL-C, and ALT were the high-risk groups of NAFLD that need to be paid attention to in this population.
10.Anatomical trajectory and clinical study of compartment-based targeted fat grafting
Chen CHENG ; Wenjin WANG ; Rulin HUANG ; Jia ZHOU ; Peijuan ZHAO ; Yijia ZHU ; Qingfeng LI ; Yun XIE
Chinese Journal of Plastic Surgery 2020;36(8):834-840
Objective:The purpose of this study is to establish the trajectory of targeted grafting for facial fat compartment based on anatomical research, and then bring it to clinical practice.Methods:The boundary of fat compartment and the relationship of adjacent vessel and nerve were clarified through autopsy. The recommended injection points and trajectory for targeted fat grafting were established on the anatomical findings. Retrospective clinical data of facial rejuvenation of 46 patients through targeted fat grafting were collected from June 2017 to June 2019 in Shanghai Ninth People’s Hospital. The result of 3D scanning were analyzed to evaluate the survival rate of fat grafts.Results:There were subcutaneous superficial fat compartments in the frontal region, and there were both deep and superficial fat compartments in the temporal and middle face. According to the anatomical characteristics, a targeted fat grafting technique was established with the frontal hairline and the oral commissure corner mucosa as the entry points. In the clinical study, 46 patients were evaluated by 3D scanning 6 months after the last fat grafting. The amount of fat grafts in the temporal region was (17.84±8.47) ml and (11.2±2.44) ml was left after operation, and the survival rate was 63%. The amount of fat grafts in mid-face was (26.81±10.36) ml and (16.09±4.48) ml was left after operation, and the survival rate was 60%. Overall satisfaction rate of patients was 93% (43/46).Conclusions:Compartment-based targeted fat grafting is an accurate injection method, which meets the requirement of physiological augmentation. The trajectory of targeted fat grafting will further improve the efficacy and safety of injection.