1.Establishment of online quantitative model for moisture content determination of hydroxychloroquine sulfate particles by near infrared spectroscopy
Ying KE ; Zhenming ZHU ; Shuoyang ZHANG ; Weiqing WANG ; Feng LU
Journal of Pharmaceutical Practice 2021;39(1):23-28
Objective To establish an online quantitative analysis model for moisture content assay of hydroxychloroquine sulfate particles by near infrared (NIR) spectroscopy. Methods The NIR spectra were collected in real time when the material particles were dried in the fluidized bed. Meanwhile the water content of the particles was measured with the standard moisture tester. The multiplicative signal correction (MSC) and first derivative followed by Karl Norris smoothing were used for spectra pretreatment. Two spectral range (4 935−5 336 cm−1 and 6 911−7 297 cm−1) were selected for the quantitative model with the partial least squares (PLS) regression. Results The quantitative calibration model had good correlation coefficients with Rc value=0.952 9 and Rp value=0.936 6. The root mean square error of calibration (RMSEC) was 0.408 and the root mean square error of prediction error (RMSEP) was 0.435. The ratio of standard deviation of validation set to prediction standard deviation (RPD) was 5.18. There was no significant difference between the predicted value and the reference value by t test when the established model was applied in large-scale production. Conclusion The online model established for monitoring water content has high accuracy and stability, which can be applied in industrial scale process to monitor the particle moisture in real time.
2.Complete thoracoscopic surgery in the treatment of congenital pulmonary airway malformation in children
Zhongxi ZHANG ; Jialiang ZOU ; Qingchi ZHANG ; Qinglin CHEN ; Guodong ZHANG ; Jiajian YANG ; Junxue JIANG
Chinese Journal of Applied Clinical Pediatrics 2021;36(11):840-843
Objective:To summarize the experience and technical difficulties of complete thoracoscopic lobectomy(segmental) in the treatment of congenital pulmonary airway malformation in children.Methods:The clinical data, surgical videos and follow-up results of 38 children suffering from congenital pulmonary airway malformation and underwent complete thoracoscopic lobectomy in Children′s Hospital of Fudan University Xiamen Branch from January 2017 to December 2019 were retrospectively analyzed.A statistical comparisons of operative time, intraoperative blood loss, postoperative pain (the first time of getting out of bed), incision length and postoperative pulmonary complications were made between 28 children who underwent the total thoracoscopic lobectomy and 21 children who accepted open surgical lobectomy before January 2017 in Children′s Hospital of Fudan University Xiamen Branch.Results:Thirty-eight children with congenital pulmonary airway malformation were successfully operated by complete thoracoscopy.There were 28 lobectomies, 6 segmental lobectomies and 4 wedge lobectomies.Postoperative follow-up was conducted for more than 3 months, and no serious surgical complications occurred.Chest radiograph of 2 children with the right lower lobectomy at 48 hours after surgery had the elevation of the right diaphragm (2-3 intercostal), and it returned to normal 3 months after surgery.The CT review of 1 child with pulmonary wedge resection 1 month after surgery displayed a little residual lesion.Thoracoscopic lobectomy was significantly different from open surgery in terms of incision length[(2.0±0.5) cm vs. (10.0±0.5) cm], postoperative pain (the first time of getting out of bed)[(24.0±2.0) h vs. (48.0±1.5) h] and pulmonary complications (0 vs. 5 cases). The operative time of single lung ventilation was remarkably different from that of double lung ventilation in thoracoscopic lobectomy[(96.0±6.0) min vs. (118.0±7.0) min, t=106.501, P<0.001]. Compared with thoracoscopic lobectomy, thoracoscopic pulmonary segmentectomy has a long time and a large amount of blood loss. Conclusions:Complete thoracoscopic lobectomy (segmental) is the first choice for the treatment of congenital pulmonary airway malformation in children, with clear operative field, little trauma, less postoperative pain, quick recovery and fewer respiratory complications.Single-lung ventilation is beneficial for surgical completion.
3.Factors affecting the consumption of sugar-sweetened beverages among middle school students in eight counties of four provinces (municipality) in China
Hong ZHANG ; Jing WU ; Jixiang MA ; Jiesi LUO ; Yun FU ; Yanan WAN ; Yiying CHEN ; Zhongxi FU ; Zhaoxue YIN
Chinese Journal of Health Management 2019;13(3):231-236
Objective To explore the factors related to the consumption of sugar-sweetened beverages (SSB) among middle school students in four provinces (municipality) in China.Methods A total of 3 469 middle school students were recruited from the Children health cohort in eight counties within the four provinces (municipality).We collected information regarding demography,lifestyle,and family and school situation as well as the consumption frequency of SSB in the previous week.High SSB consumption was defined as "positive" if the frequency was once a day or more.Mean consumption time was calculated,and then logistic regressions were performed to explore the factors influencing SSB consumption.Results Prevalence of high SSB consumption was 11.18% among the subjects of the eight counties,and the consumption frequency of SSB was 0.21 times per day.Multivariate logistic regression analysis revealed that the following factors were associated with high consumption of SSB:higher grade,rural region,male gender,physical exercise,habit of eating snacks,eating out,and fast-food consumption (P<0.01).Factors influencing high SSB consumption were not completely equal between genders:physical exercise at school was associated with high SSB consumption only in female students (P<0.01),while higher grade and eating out in the past week were associated with high SSB consumption only in male students (P<0.05).Conclusion Factors associated with high SSB consumption among middle school students included grade,region,physical exercise at school,snack consumption,eating out,and fast-food consumption.These factors differed between genders.Intervention programs addressing these factors may be beneficial in reducing SSB consumption in middle school students.
4.Evaluation method of evidence body for acupuncture and moxibustion clinical practice guidelines: the stratified evidence evaluation method.
Zhongxi LV ; Yi GUO ; Zelin CHEN ; Tianyi ZHAO ; Shuxuan ZHANG
Chinese Acupuncture & Moxibustion 2018;38(10):1115-1118
To explore the evaluation method of evidence body for acupuncture and moxibustion clinical practice guidelines (CPGs), and to provide methodological support for the development of acupuncture and moxibustion CPGs and to promote the establishment and application of acupuncture and moxibustion standard. Based on the academic characteristics of TCM acupuncture, the stratified evidence evaluation method was proposed. Firstly, evidences were collected from the ancient literature, modern literature and clinical experience, and were scientifically distinguished and evaluated. Secondly, all the evidences were integrated as body of evidence by analytic hierarchy process (AHP). Lastly, based on the general index (GI), the clinical recommendations for acupuncture were proposed. Based on the stratified evidence evaluation method, acupuncture and moxibustion CPGs were developed in a more scientific and objectiveway with the comprehensive and sufficient evidences.
Acupuncture Therapy
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Moxibustion
5.Application of minimum clinically important difference in the clinical study of acupuncturej and moxibustion.
Qiwen ZHANG ; Bo CHEN ; Zhongxi LV ; Yi GUO ; Yongming GUO ; Xingfang PAN
Chinese Acupuncture & Moxibustion 2016;36(3):311-313
The current clinical efficacy evaluation system and evaluation methods of acupuncture have several limitations, and the application status is not optimistic. According to long-term observation, minimum clinically important difference (MCID) is consistent with the characteristics of clinical acupuncture, and has objective quanti- tative standard and wide applicability. Incorporating MCID into acupuncture clinical efficacy evaluation of tradition- al Chinese medicine can truly reflect the clinical effect of acupuncture and improve the disadvantages and shortcom- ings of acupuncture clinical evaluation, which could provide certain reference for building clinical efficacy evaluation system featured with TCM.
Acupuncture Therapy
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standards
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Clinical Trials as Topic
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standards
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Humans
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Moxibustion
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standards
6.A report of 42 patients with type Ⅲ biliary atresia treated by hepatojejunostomy
Zhongxi ZHANG ; Li SHEN ; Pingping ZHANG ; Chen LI ; Jinzhong XU ; Guowei YANG ; Genling ZHANG
Chinese Journal of Hepatobiliary Surgery 2015;21(8):548-550
Objective To determine the clinical effects of type Ⅲ biliary atresia treated by hepatojejunostomy (Kasai procedure).Methods A retrospective study was performed on patients with type Ⅲ biliary atresia treated in our hospital between January 2009 to December 2013.Results The follow-up data were completed in 42 patients out of 48 patients (87.5%) who underwent Kasai procedure for type Ⅲ biliary atresia.The jaundice disappeared in 31 of 42 patients (73.8%).The rate of patients having cholangitis was 47.6%.There were significant differences in the 2-year survival among the groups of patients with mild cholangitis (75.0%,9/12),serious cholangitis (25.0%,2/8) and without cholangitis (86.4%,19/22) (P < 0.05).Conclusions Hepatojejunostomy (Kasai procedure) is an effective operation to treat type Ⅲ biliary atresia.Our data suggested that the survival rates were related to the degree of bile drainage and cholangitis post surgery.
7.Efficacy and impact of premedication with eszopiclone on sleep structure of patients with acute insomnia
Zhenyun YIN ; Huijuan WU ; Lin ZHANG ; Hua PENG ; Liuqing HUANG ; Wenzhao WANG ; Zhongxi ZHAO
Chinese Journal of Neurology 2011;44(12):853-856
Objective To evaluate the efficacy of eszopiclone for patients with acute insomnia and the impact of premedication with eszopiclone on sleep structure of patients with acute insomnia.Methods In an open-label,self-control trial was conducted at Changzheng Hospital Sleep Centers,and patients (n =32) with acute insomnia (12 men,20 women; mean age,36.2 years) were administered eszopiclone 3 mg for three consecutive nights.Sleep was monitored via polysomnography.The insomnia severity index (ISI),and mini-mental state examination (MMSE) were used to assess the degree of insomnia and impact of drugs on cognitive function during the day.Results Eszopiclone can shorten sleep latency ( before treatment:(52.92 ± 11.71 ) min,after treatment:(28.2 ± 10.11 ) min; t =-4.376,P <0.01 ),prolong total sleep time(before treatment:(365.22 ±30.13) min,after treatment:(429.18 ±26.93 ) min; t =4.102,P < 0.01 ),decrease wake up times( before treatment:( 5.00 ± 1.92 ) times,after treatment:( 2.73 ± 0.91 )times; t =- 4.592,P < 0.01 ),improve sleep efficiency ( before treatment:72.69% ± 6.32%,after treatment:82.67% ± 4.16% ; t =3.371,P < 0.01 ),reduce awake time ( before treatment:( 88.51 ±17.48) min,after treatment:(65.93 ±21.l0)min; t =-4.592,P <0.01 ),decrease light sleep ( NREM1 period) the percentage of time ( before treatment:12.54% ± 2.10%,after treatment:7.30% ± 2.90% ;t=-3.155,P < 0.01 ),and increase the percentage of slow wave sleep (before treatment:8.03% ±5.37%,after treatment:9.31% ±5.29%; t =4.228,P <0.01).No effect was observed on the percentage of NERM2 period (t =0.731,P >0.05) and REM period (t =-0.813,P >0.05).Eszopiclone can improve the quality of subjective assessment of sleep ( ISI score decreased,t =- 2.551,P < 0.05) and has no significant effect on cognitive function on first the morning after patients taking the medication.Conclusion Eszopiclone can positively regulate the sleep structure in patients with acute insomnia and improve subjective assessment of sleep quality.It is safe and has no significant effect on cognitive function.
8.Effect of sublingual immunotherapy on level of cytokines in PBMCs of patients with allergic asthma.
Zhongxi, WANG ; Wenjing, LI ; Huan, CHEN ; Wei, ZHANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(3):376-8
This study examined the possible mechanism of sublingual immunotherapy (SLIT) in the treatment of allergic asthma. Forty asthma patients allergic to dust mite were enrolled. They received SLIT with dermatophagoides farinae (Der. f) drops for one year. Thirty healthy subjects served as controls. The levels of IL-4 and IFN-γ of peripheral blood mononuclear cells (PBMCs) were determined in allergic asthma patients before and after the SLIT as well as the healthy subjects. The results showed that the level of IL-4 was substantially increased and that of IFN-γ remarkably decreased in the patients before the SLIT as compared with those in the healthy subjects (P<0.05). After the SLIT, the level of IL-4 was significantly reduced and that of IFN-γ elevated in these allergic asthma patients. It was concluded that sublingual immunotherapy is effective for patients with allergic asthma. And it may work by regulating the balance of Th1/Th2 through changing the expression of IL-4 and IFN-γ in PBMCs.
9.Effect of Sublingual Immunotherapy on Level of Cytokines in PBMCs of Patients with Allergic Asthma
WANG ZHONGXI ; LI WENJING ; CHEN HUAN ; ZHANG WEI
Journal of Huazhong University of Science and Technology (Medical Sciences) 2011;31(3):376-378
This study examined the possible mechanism of sublingual immunotherapy (SLIT) in the treatment of allergic asthma.Forty asthma patients allergic to dust mite were enrolled.They received SLIT with dermatophagoides farinae (Der.f) drops for one year.Thirty healthy subjects served as controls.The levels of IL-4 and IFN-γ of peripheral blood mononuclear cells (PBMCs) were determined in allergic asthma patients before and after the SLIT as well as the healthy subjects.The results showed that the level of IL-4 was substantially increased and that of IFN-γ remarkably decreased in the patients before the SLIT as compared with those in the healthy subjects (P<0.05).After the SLIT,the level of IL-4 was significantly reduced and that of IFN-γ elevated in these allergic asthma patients.It was concluded that sublingual immunotherapy is effective for patients with allergic asthma.And it may work by regulating the balance of Th1/Th2 through changing the expression of IL-4 and IFN-γ in PBMCs.
10.A study of costimulatory molecules in allergic allergic rhinitis patients.
Rongfei ZHU ; Guanghui LIU ; Wenjing LI ; Zhongxi WANG ; Huan CHEN ; Wei ZHANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2008;22(17):780-784
OBJECTIVE:
To investigate the expression of costimulatory molecules CD28/B7 and CD40/CD40L in T and B lymphocytes as well as its relations with total IgE (TIgE), eosinophil cationic protein (ECP) in serum and nasal allergic symptoms in patients with allergic rhinitis (AR). The effect of specific immunotherapy (SIT) on them were also investigated.
METHOD:
Thirty allergic allergic rhinitis patients were chosen as observation group, and 30 healthy patients as control group. Cytofluorometric analysis was used to compare the expression level of CD28/B7-1, B7-2 and CD40/CD40L on T cells and B cells in the two groups. The relationship between the CD28/ B7-1, B7-2 and CD40/CD40L expression level and serum Total IgE, ECP level were analyzed.
RESULT:
The expression level of CD28/B7-2 and CD40/CD40L on T cells and B cells in allergic rhinitis patients were significantly higher than in the healthy, and serum level of TIgE has a positive relationship with the expression level of CD40L on T cells. ECP has a positive relationship with the expression level of B7-2 on B cells. The expression level of B7-1 showed no significant difference between the two groups. After specific immunotherapy for 6 months, the expression level of CD28/B7-2 and CD40/CD40L on T cells and B cells were decreased in allergic rhinitis patients but still higher than in healthy.
CONCLUSIONS
The upregulated level of costimulatory molecules CD28/B7-2 and CD40/ CD40L on T cells and B cells may play an important role in the pathogenesis of allergic rhinitis, specific immunotherapy can downregulate the expression level of CD28/B7-2 and CD40/CD40L, and decrease the serum level of TIgE, it may be a possible mechanism in the treatment of allergic rhinitis.
Adult
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B-Lymphocytes
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immunology
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metabolism
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B7-2 Antigen
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metabolism
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CD28 Antigens
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metabolism
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CD40 Antigens
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metabolism
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CD40 Ligand
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metabolism
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Case-Control Studies
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Desensitization, Immunologic
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Female
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Humans
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Immunoglobulin E
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blood
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Male
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Rhinitis, Allergic, Perennial
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blood
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immunology
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metabolism
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therapy
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T-Lymphocytes
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immunology
;
metabolism


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