1.Preliminary exploration of differentiating and treating multiple system atrophy from the perspective of the eight extraordinary meridians
Di ZHAO ; Zhigang CHEN ; Nannan LI ; Lu CHEN ; Yao WANG ; Jing XUE ; Xinning ZHANG ; Chengru JIA ; Xuan XU ; Kaige ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):392-397
Multiple system atrophy (MSA) is a rare neurodegenerative disease with complex clinical manifestations, presenting substantial challenges in clinical diagnosis and treatment. Its symptoms and the eight extraordinary meridians are potentially correlated; therefore, this article explores the association between MSA symptom clusters and the eight extraordinary meridians based on their circulation and physiological functions, as well as their treatment strategies. The progression from deficiency to damage in the eight extraordinary meridians aligns with the core pathogenesis of MSA, which is characterized by "the continuous accumulation of impacts from the vital qi deficiency leading to eventual damage". Liver and kidney deficiency and the emptiness of the eight extraordinary meridians are required for the onset of MSA; the stagnation of qi deficiency and the gradual damage to the eight extraordinary meridians are the key stages in the prolonged progression of MSA. The disease often begins with the involvement of the yin and yang qiao mai, governor vessel, thoroughfare vessel, and conception vessel before progressing to multiple meridian involvements, ultimately affecting all eight extraordinary meridians simultaneously. The treatment approach emphasizes that "the direct method may be used for joining battle, but indirect method will be needed in order to secure victory" and focuses on "eliminate pathogenic factors and reinforce healthy qi". Distinguishing the extraordinary meridians and focusing on the primary symptoms are pivotal to improving efficacy. Clinical treatment is aimed at the target, and tailored treatment based on careful clinical observation ensures precision in targeting the disease using the eight extraordinary meridians as the framework and core symptoms as the specific focus. Additionally, combining acupuncture, daoyin therapy, and other method may help prolong survival. This article classifies clinical manifestations based on the theory of the eight extraordinary meridians and explores treatment.
2.Characteristics of gut microbiota determine effects of specific probiotics strains in patients with functional constipation.
Haohao ZHANG ; Lijuan SUN ; Zhixin ZHAO ; Yao ZHOU ; Yuyao LIU ; Nannan ZHANG ; Junya YAN ; Shibo WANG ; Renlong LI ; Jing ZHANG ; Xueying WANG ; Wenjiao LI ; Yan PAN ; Meixia WANG ; Bing LUO ; Mengbin LI ; Zhihong SUN ; Yongxiang ZHAO ; Yongzhan NIE
Chinese Medical Journal 2024;137(1):120-122
3.Teaching reform and practice of 'Production Internship' course for biotechnology specialty from the perspective of training application-oriented talents.
Bin DONG ; Jun WANG ; Tao WU ; Bin LIU ; Zhiwei SU ; Liping ZHAO ; Hanjie ZHANG ; Xinming WU ; Shijun FU ; Nannan LIU ; Chunlong SUN ; Zhigang YAO
Chinese Journal of Biotechnology 2023;39(2):755-768
Production internship is an important teaching tache for undergraduate students to carry out engineering training by using professional skills, and it is a key starting point for fostering application-oriented talents in biotechnology. The Course Group of 'production internship of biotechnology majors' of Binzhou University is investigating application-oriented transformation for local regular colleges and universities, as well as fostering high-level application-oriented talents. By taking green fluorescent protein (GFP) polyclonal antibody as an example, the reform and practice on teaching content, teaching mode, assessment method, continuous improvement of curriculum were carried out. Moreover, the characteristics of the Yellow River Delta-Binzhou Biotechnology & Pharmaceutical Industrial Cluster were taken into account to intensify academic-enterprise cooperation. On one hand, this Course Group designed and rearranged the course contents, carried out essential training through online resources and platforms such as virtual simulation, and recorded, tracked and monitored the progress of production internship through practical testing and software platforms like 'Alumni State'. On the other hand, this Course Group established a practice-and application-oriented assessment method in the process of production internship and a dual evaluation model for continuous improvement. These reform and practices have promoted the training of application-oriented talents in biotechnology, and may serve as a reference for similar courses.
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4.The assay of monohydroxy carbamazepine, the active metabolite of oxcarbazepine, in human plasma by HPLC
Nannan YAO ; Yu ZHOU ; Wenqian FU ; Shan HUANG ; Hongtao SONG
Journal of Pharmaceutical Practice 2021;39(1):53-57
Objective To establish an assay method for monohydroxy carbamazepine, the active metabolite of oxcarbazepine, in human plasma. Methods Ornidazole was used as the internal standard. Plasma samples were processed with methanol and analyzed by HPLC. The column was ZORBAX Eclipse XDB-C18(150 mm×4.6 mm, 5 μm) with the mobile phase of water-acetonitrile (80∶20, V/V) at a flow rate of 1.0 ml/min. Dual wavelength detection is applied. The detection wavelength of monohydroxy carbamazepine was set at 192 nm and ornidazole at 318 nm. Results There was an excellent liner relationship for monohydroxy carbamazepine from 2 to 50 μg/ml(r= 0.998 6). The limit of quantification was 2 μg/ml with the range of accuracy between 95.57% and 100.59%. The RSD of intra-day and inter-day precisions were less than 15%. The average extraction recovery rate of MHC and internal standard were in the range of 89.62% to 98.76%. The RSD of stability was less than 6%. Conclusion This method is specific, sensitive, and easy to operate. It is suitable for the clinical assay of monohydroxy carbamazepine in human plasma.
5.Meta-analysis of effects of neuromuscular electrical stimulation of lower limbs on patients with mechanical ventilation in intensive care unit
Jie CHENG ; Jiajia KONG ; Rui WANG ; Kexin JI ; Huiya GAO ; Li YAO ; Nannan DING ; Zhigang ZHANG
Chinese Critical Care Medicine 2021;33(10):1243-1248
Objective:To evaluate the effect of lower limb neuromuscular electrical stimulation (NMES) on mechanical ventilation patients in intensive care unit (ICU).Methods:Databases including the Cochrane Library, PubMed, Web of Science, Embase, SinoMed, CNKI, VIP and Wanfang database were searched from inception to May 2021. Randomized controlled trails (RCT) about the influence of NMES of lower limbs in patients with mechanical ventilation in ICU were collected. Routine rehabilitation measures were implemented in the control group, while the combination of routine rehabilitation and NMES on the lower limbs was implemented in the observation group. The literature screening, data extracting, and bias risk assessment of included studies were conducted independently by two reviewers. RevMan 5.3 software was used to perform Meta-analysis. Funnel plot was used to test publication bias.Results:A total of 8 RCT were eventually enrolled. The literature quality evaluation results showed that 1 study was grade A and 7 studies were grade B, suggesting that the quality of the included literature was relatively high. The Meta-analysis results showed that NMES in the lower extremities could effectively shorten the duration of mechanical ventilation in ICU patients [standardized mean difference ( SMD) = -0.51, 95% confidence interval (95% CI) was -0.72 to -0.31, P < 0.000 01], increase the maximum inspiratory pressure [MIP; mean difference ( MD) = 14.19, 95% CI was 9.30 to 19.09, P < 0.000 01], and improve the functional status of critically ill patients [functional status score for ICU (FSS-ICU); MD = 10.44, 95% CI was 3.12 to 17.77, P = 0.005] with statistically significances. However, there were no significant advantages in increasing the Medical Research Council (MRC) score ( MD = 2.13, 95% CI was -1.38 to 5.63, P = 0.23), reducing ICU mortality [relative risk ( RR) = 0.80, 95% CI was 0.51 to 1.24, P = 0.31], shortening length of ICU stay ( MD = -0.54, 95% CI was -3.67 to 2.59, P = 0.74), and the combined effect was not statistically significant. Funnel plot based on the duration of mechanical ventilation showed that the distribution of included articles was basically symmetrical, and no publication bias was detected. Conclusions:NMES of the lower limbs can not only shorten the ventilation duration effectively, but also improve the MIP and functional status of mechanically ventilated patients in ICU. However, it has no significant effect on the MRC score, ICU mortality and length of ICU stay of patients with mechanical ventilation. In the future, high-quality, large sample size and multi-center RCT are needed to verify the effects of NMES.
6.Evaluation of pharmaceutical prevention and treatment of intensive care unit-acquired weakness: a Meta-analysis
Liping YANG ; Zhigang ZHANG ; Caiyun ZHANG ; Jinhui TIAN ; Xiaojia MA ; Wenbo MENG ; Nannan DING ; Li YAO ; Huaping WEI ; Xiping SHEN
Chinese Critical Care Medicine 2020;32(3):357-361
Objective:To evaluate the effect of preventing and treatment of pharmaceuticals on intensive care unit-acquired weakness (ICU-AW) by systematic review.Methods:The randomized controlled trials (RCTs) concerning pharmaceutical prevention and treatment about ICU-AW in SinoMed, CNKI, Wanfang data, PubMed, Cochrane Library, Web of Science, EMbase, and other sources were searched from their foundation to May 30th, 2019. The patients in the intervention group were treated with drugs to prevent or treat ICU-AW; and those in control group were treated with other rehabilitation methods. Data searching, extracting and quality evaluation were assessed by two reviewers independently. Stata 12.0 software was then used for Meta-analysis. Only descriptive analysis was conducted when only one study was enrolled.Results:A total of 11 RCTs were enrolled with 1 865 patients in the intervention group and 1 894 in the control group. The results of quality evaluation showed that 4 studies were A-level and 7 studies were B-level, indicating that the overall quality of the enrolled literature was high. Meta-analysis showed that intensive insulin therapy could prevent ICU-AW [relative risk ( RR) = 0.761, 95% confidence interval (95% CI) was 0.662-0.876, P = 0.000], but reduced phenylalanine loss (nmol·100 mL -1·min -1: -3±3 vs. -11±3, P < 0.05) and glutamine intake (nmol·100 mL -1·min -1: -97±22 vs. -51±13, P < 0.05). There was no significant difference in the prevention and treatment of ICU-AW between other drugs (including growth hormone, glutamine, dexmedetomidine, neostigmine, oxandrolone, and intravenous immunoglobulin) and control group. Conclusions:Intensive insulin therapy can prevent ICU-AW, but the risk of hypoglycemia will increase. Other drugs including growth hormone, glutamine, dexmedetomidine, neostigmine, oxandrolone, and intravenous immunoglobulin have no obvious advantages in the prevention and treatment of ICU-AW, so no drug has been recommended to prevent and treat ICU-AW.
7.Cognitive impairment after intensive care unit discharge: a Meta-analysis
Li YAO ; Nannan DING ; Liping YANG ; Zhigang ZHANG ; Lingjie JIANG ; Biantong JIANG ; Yuchen WU ; Caiyun ZHANG ; Jinhui TIAN
Chinese Critical Care Medicine 2020;32(3):350-356
Objective:To investigate the cognitive impairment after intensive care unit (ICU) discharge and provide theoretical basis for prevention and intervention.Methods:Studies about cognitive impairment after ICU discharge were retrieved in PubMed, Embase, Cochrane Library, Web of Science, Wanfang data, CNKI and SinoMed from their foundation to December 2019. The literature screening and data extraction were performed by two researchers independently, and the quality of different types of researches was evaluated using Cochrane Handbook 5.1.0, Newcastle-Ottawa scale (NOS) and agency for healthcare research and quality criteria (AHRQ). The Meta-analysis was performed by Stata 13.0 software. Sensitivity analysis was used to determine the reliability of the combined effect values. Funnel plot and Egger test were used to analyze publication bias. The non-parametric clipping was used to evaluate the impact of publication bias on the results.Results:A total of 35 studies were enrolled, including 27 prospective cohort studies, 4 retrospective cohort studies, 2 randomized controlled trial (RCT) studies, 1 case-control study, and 1 cross-sectional study. Three literatures were published in Chinese and 32 were in English, which covered 13 countries, and a total of 102 504 ICU survivors were followed up successfully. Literature quality evaluation results showed that the NOS scores of 31 cohort studies were between 6 and 9, of which the case-control study scored 9. The quality grade of 2 RCT studies were both B. According to the AHRQ criteria, 1 cross-sectional study's design was scientifically rigorous and of high quality. Thirty-five studies reported that the overall incidence of cognitive impairment after ICU discharge ranged from 2.47% to 66.07%. For the multiple follow-ups studies, the first survey data was selected for Meta-analysis, and the results showed that the pooled incidence was 38.44% [95% confidence interval (95% CI) was 29.32-47.55]. Each study was removed for sensitivity analysis and the pooled results did not change much, which indicated that the results were reliable. The sub-group analysis was performed on different evaluation methods for cognitive impairment after ICU discharge, different types of ICU patients, and different follow-up time. The results showed that the pooled incidence of studies using neuropsychological test to evaluate cognitive impairment after ICU discharge was 31.42% (95% CI was 21.82-41.02), the pooled incidence of studies using questionnaires or scales was 38.75% (95% CI was 29.54-47.96), and the difference between the two groups was statistically significant ( P < 0.01). The pooled incidence of cognitive impairment after ICU discharge in general ICU patients was 43.42% (95% CI was 30.88-55.95), acute respiratory distress syndrome (ARDS) patients' pooled incidence was 34.40% (95% CI was 23.02-45.79), and the pooled incidence of elderly ICU patients was 12.93% (95% CI was 8.48-17.37), the difference among the three groups was statistically significant ( P < 0.01). The incidences of cognitive impairment < 1 year, 1 to 4 years, ≥ 5 years after ICU discharge were 43.30% (95% CI was 29.47-57.13), 34.21% (95% CI was 26.70-41.72), and 20.22% (95% CI was 4.89-35.55), respectively, and the differences among the three groups were statistically significant ( P < 0.01). The funnel plot showed that the distribution of all studies was asymmetric, and the Egger test result also suggested that there might be publication bias ( P < 0.05). The non-parametric clipping was used to estimate the impact of publication bias on the results, and the result showed that the difference in the incidence of cognitive impairment after ICU discharge before and after non-parametric clipping was large, suggesting that publication bias might influence the stability of the research results. Conclusions:The incidence of cognitive impairment after ICU discharge is relatively high and persistent for a long time, but diagnostic criteria of cognitive impairment and follow-up time are quite different. It is necessary to develop consistent evaluation criteria and rigorous designed research in the further.
8.Analysis of adverse reactions in 312 cases of gemcitabine
Nannan YAO ; Lili LIN ; Shan HUANG ; Wenqian FU ; Hongtao SONG
Journal of Pharmaceutical Practice 2020;38(2):174-178
Objective Based on the data of gemcitabine adverse reactions (ADR), the characteristics and patterns of ADR occurrence were analyzed. The guidance for the rational clinical use of gemcitabine was provided. Methods From our information system, the patients treated by gemcitabine chemotherapy from September 2008 to September 2018 were selected and their related ADRs were summarized and statistically analyzed by using SPSS 18.0. Results Among the 750 cases, there were 312 ADRs related to gemcitabine treatment, of which the incidence of ADR was higher in female patients than in male patients (48.68% vs 36.77%) and the highest incidence in the age group of 50-69 years (44.14%). The patients with lower status (KPS) scores were more sensitive to chemotherapeutic drugs, and more likely to develop ADR. During the combination therapy, gemcitabine+paclitaxel chemotherapy had the highest incidence of ADR (61.54%) and the highest incidence of ADR in thymic carcinoma (62.50%), followed by hematological and reproductive system tumors (58.62% and 57.14%, respectively); ADR involvement in organs/systems is mainly caused by hematological toxicity. The bone marrow suppression is common, followed by digestive system damage. The major clinical symptoms were nausea and vomit. Conclusion Gemcitabine-related ADR has a large individualized difference and is affected by many factors. Chemotherapy should be used according to individual conditions to improve clinical safety and rational use of drugs.
9.Assay of unbound teicoplanin in human plasma by centrifugal ultrafiltration combined with ultra performance liquid chromatography-tandem mass spectrometry
Wenqian FU ; Minxin ZHANG ; Nannan YAO ; Lili ZHANG ; Hongtao SONG
Journal of Pharmaceutical Practice 2020;38(6):547-551
Objective To establish an assay method for unbound teicoplanin in plasma by centrifugal ultrafiltration combined with ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Methods Protein was removed from plasma by a Centrifree® ultrafiltration device. The ultrafiltrate was injected to determine the unbound concentration of teicoplanin. EndeadvorsilTM C18 column (1.8 μm, 50 mm×2.1 mm) was used with gradient elution of acetonitrile and 0.02 mol/L ammonium acetate solution (containing 0.1% formic acid). The detection was performed on a triple-quadrupole tandem mass spectrometer by multiple reaction monitoring (MRM)mode via electro spray ionization (ESI). Results The calibration curve of unbound teicoplanin in plasma was linear over the range of 0.10 to 8.00 μg/ml (r=0.999). The intra-assay precision and the inter-assay precision of samples didn't exceed 7.00%. The average relative recovery ratio was 97.9%, and the matrix effect factor was 0.97. The samples had good stability after being stored at room temperature for 10 h or at −20 ℃ for 15 days, and freeze-thawed 3 times (RSDs were all within 6.50%). Conclusion This method is convenient, fast, sensitive and accurate. It provided a basis for clinical development of teicoplanin unbound concentration monitoring.
10.Safety criteria for early goal-oriented rehabilition exercise in patients undergoing mechanical ventilation in intensive care unit: a systematic review
Nannan DING ; Li YAO ; Zhigang ZHANG ; Liping YANG ; Lingjie JIANG ; Biantong JIANG ; Yuchen WU ; Caiyun ZHANG ; Jinhui TIAN
Chinese Critical Care Medicine 2019;31(1):91-97
Objective To determine the safety criteria for early goal-oriented rehabilition exercise in patients undergoing mechanical ventilation in intensive care unit (ICU) by systematic review.Methods Randomized controlled trails (RCTs) and cohort studies about early goal-oriented rehabilition exercise in patients undergoing mechanical ventilation in ICU were retrieved in CBM,CNKI,Wanfang Data,PubMed,Cochrane Library and Web of Science from their foundation to March 2018,and other sources as supplement was also retrieved.The intervention program of RCT study was ICU routine nursing in control group,early activity in observation group,and early activity in cohort study without control group.Early activities included active and passive activities on the bed,sitting upright,bed-chair transfer,standing and walking.Literature screening and data extraction were performed independently by two researchers.Variables or parameters.related to cardiovascular,respiratory,nervous,orthopedic and other systems were collected for safety criteria.Variables or parameters used in at least three literatures were collected for each system.Cochrane 5.1.0 was used to evaluate the quality of RCT study,and Newcastle-Ottawa scale (NOS) was used to evaluate the quality of cohort study.Results A total of 24 articles about early activity of patients undergoing mechanical ventilation in ICU were enrolled,involving 4647 patients,including 11 RCT studies involving 1 031 patients,509 in control group and 522 in observation group;13 cohort studies including 3616 patients.It was shown by systematic review that safety criteria for early activity in patients undergoing mechanical ventilation in ICU involved five systems,20 variables or parameters.The cardiovascular system included 8 variables or parameters,such as 40 bpm < heart rate (HR) < 130 bpm (n =4),hemodynamic stability (n =5),no myocardial infarction (n =3),no arrhythmia (n =4),no vascular active drugs (n =4),90 mmHg < systolic blood pressure (SBP) < 200 mmHg (1 mmHg =0.133 kPa,n =4),65 mmHg ≤ mean arterial pressure (MAP) ≤ 110 mmHg (n =3),no history of cardiopulmonary resuscitation (CPR,n =5).The respiratory system included 4 variables or parameters,involving 5 times/min < respiratory rate (RR) < 40 times/min (n =5),fraction of inspired oxygen (FiO2) ≤ 0.60 and positive end-expiratory pressure (PEEP) ≤ 10 cmH2O (1 cmH2O =0.098 kPa,n =4),FiO2 < 0.60 or PEEP < 10 cmH2O (n =3),pulse blood oxygenation (SpO2) > 0.88 (n =5).The nervous system included 4 variables,including no neuromuscular disease (n =7),no increase in intracranial pressure (n =7),no coma (n =4),understand and do the right thing (n =4).The orthopedic system included 2 variables,including no fracture (n =3),no unstable fracture (n =8).Other factors included 2 variables,including no open abdomen wound (n =4),and no palliative care (n =3).Conclusions This study identified safety criteria for early goal-directed rehabilition exercise in patients undergoing mechanical ventilation in ICU included five systems of cardiovascular,respiratory,neurological,orthopedic,and other systems,in which cardiovascular and respiratory systems were the most frequently cited variables or parameters.The consistency of each system security criteria or variables reported by different literatures was high,but the parameters need to be further verified by high-quality study.


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