1.MEASUREMENT OF PLASMA VITAMIN A AND E IN CHINESE BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
Guangya WANG ; Xiaomin YE ; Junshi CHEN
Acta Nutrimenta Sinica 1956;0(03):-
This paper described a microprocedure for the simultaneous determination of retinol (Vitamin A), alpha and gamma tocopherol (Vitamin E) in plasma by high performance liquid chromatography. A reversed-phase C18 column with precolumn was used. The mobile phase was water in methanol (2:98) and the flow rate was 1.8ml/min. An ultraviolet detector with 300 nm was used. The chromatogram was completed in 12 min and the retinol, alpha and gamma tocopherol were quantitated by the peak area ratio and weight ratio using benzo (e) pyrene as an internal standard. The mean recovery of retinol and alpha tocopherol were 93.9% and 106.9% respectively. The coefficient of variation (CV%) were 5.2 for retinol, 4.8 for gamma tocopherol and 6.3 for alpha tocopherol. In order to assess the possibility of measuring pooled samples instead of individual samples, the value of individuals was compared with the value of the pooled sample. The results showed that the pool values and the mean ? SD of the 25 individuals compared very favourably.6500 blood samples were collected from both sexes and 130 communities of 65 counties. The plasma retinol and tocopherols were analyzed. The average plasma retinol value (X?SD,?g/dl) was 52 ?9.2 for male and 41 ?6.8 for female. The average plasma alpha tocopherol value (X?SD) was 703?108 for male and 735?101 for female. The mean ? SD (?g/dl) of total vitamin E were 750 ? 124 and 776 ?104 respectively for male and female.
2.Preparation and Properties of Mesalazine β-Cyclodextrin Inclusion Compound
Chunling JIANG ; Conghai LIU ; Chenggui ZHANG ; Hengyuan XIE ; Guangya CAI ; Ya ZHOU ; Shi CHEN
China Pharmacist 2017;20(2):266-270
Objective:To prepare mesalazineβ-cyclodextrin inclusion compound and observe its properties. Methods:The struc-ture was characterized by UV, IR and DSC. The inclusion process of mesalazine andβ-cyclodextrin was simulated using molecular doc-king technique. The solubility and dissolution of inclusion compound were determined. Results:UV, IR and DSC were used to deter-mine the formation of inclusion complex. The inclusion ratio was 1: 1 and the phase solubility diagram was AL type. The solubility of inclusion compound in deionized water (25 ℃, pH 7. 0) was 7. 8 mg·ml-1 . The preparation of mesalazine β-cyclodextrin inclusion compound could significantly increase the dissolution rate and solubility of mesalazine. Conclusion:The prepared mesalazineβ-cyclo-dextrin inclusion compound can obviously improve the poor water solubility and dissolution of mesalazine.
3.Study on the correlation between the anti-earthquake military rescuers' psychosomatic health and social support and mental intervention
Liyi ZHANG ; Zixiang SONG ; Guangya ZHANG ; Guangyao LI ; Gaofeng YAO ; Fengyan TAO ; Zhixiong XU ; Chunxia CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(1):56-58
Objective To investigate the relationship between the anti-earthquake military rescuers' psychosomatic health and social support, and observe the effect of intervention to the army men who suffered troubles.Methods By cluster random sampling, 152 military rescuers and 139 army men not taking part in the rescues were investigated by Facility Psychosomatic Health Scale and Social Support Rating Scale. Mental intervention or medication was performed to those produced psychosomatic health. Results The scores of somatic symptoms,mental status,psychosomatic health and social support of military rescuers and the control group were (4.09±4.70) ,(2.18 ±3.16) ,(6.27 ±7.08) ,(6.14 ±4.20) and (2.11 ±4.16) ,(1.37 ±3.09),(3.47 ±6.55),(4.57 ± 4.17 )respectively, the difference was significant(P<0.05). The somatic symptoms had significantly positive correlation with mental status in military rescuers (r=0.17~0.52, P< 0.05 or 0.01 ). Failure of social support had positive correlation with mental disorders (r=0.18~0.40, P<0.05 or 0.01). The degree of social support was the main factor which had affected on the psychosomatic health of military rescuers. The somatic symptoms of military rescuers were apparently higher than their mental symptoms. Mental and pharmaceutical intervention showed good effect on them. Conclusion There is an apparent effect for military rescuers injured seriously psychosomatic health through medication or mental intervention.
4.Progress in the application of electronic health records in palliative care from a digital health perspective
Yushuang LI ; Cuiping XU ; Yuze CHEN ; Xiaoyi LIU ; Yuchen MENG ; Guangya WANG
Chinese Journal of Modern Nursing 2024;30(31):4313-4317
Electronic Health Records (EHRs) are digital health tools that support comprehensive care and digital services. This paper provides an overview of EHRs, summarizes their current applications in palliative care, and proposes solutions to address issues in the use of EHRs in this field. The aim is to offer reference points for promoting the application of EHRs in palliative care in China.
5.Study on the feasibility of improving menopausal syndrome using the one-day outpatient based continuous management model
Yangmei LI ; Guangya LI ; Yifan CHEN ; Anqi DAI ; Xu WANG ; Yi JIN ; Tingting ZENG ; Xun LEI ; Yao FAN ; Lili YU
Chinese Journal of Preventive Medicine 2021;55(8):1006-1010
To explore the mode of"one-day outpatient"based continuous management and examine its feasibility and preliminary effects for improving menopausal syndrome and mood among menopausal women.Clinical intervention study was conducted in Obstetrics and Gynecology Center of the Third Affiliated Hospital of Chongqing Medical University from May 2020 to May 2021.The continuous management mode of "one-day outpatient service" for menopause was constructed in terms of multidisciplinary resources, including offline "one-day outpatient" health education, online 7-week group continuous intervention on "healthy lifestyle" and offline half-day focus group interview. Pre-and post-scores of the modified Kupperman scale and the positive/negative emotional scale (PANAS) were measured to compare the status of menopausal syndrome and emotional experience of Seventy-eight female participants (40-60 years old), meanwhile, before and after comparison of the blood lipid and body composition indexes of participants were also performed. Paired t test or Wilcoxon signed rank test were used.Results show that the pre-and post Kupperman scores were 14.65±8.51 vs 10.26±5.83 ( t=-5.59, P<0.01), and the positive emotional scores (pre- 28.53±5.85 vs post- 30.13±6.30) were improved ( t=2.59, P=0.012) and negative emotional scores [pre- 20.5(10) vs post- 17.0(7)] were decreased ( Z=-5.09, P<0.01). The triglyceride level of participants declined from (1.27±0.54) mmol/L to (1.09±0.38) mmol/L ( t=-2.45, P<0.05). In addition, the body mass index(pre- 22.52±2.34 vs post- 22.06±2.22), percentage of body fat (pre- 31.72±6.22 vs post- 30.91±6.52)and Visceral fat area(pre- 83.96±30.26 vs post- 79.66±29.71) were all improved ( t=-3.58, t=-2.57, t=-2.59, P<0.05). Therefore,the mode of"one-day outpatient"based continuous management can effectively improve menopausal syndrome and adverse mood, reduce patients′ blood lipid, improve the body composition, and maybe contribute to the prevention of long-term chronic diseases.
6.Study on the feasibility of improving menopausal syndrome using the one-day outpatient based continuous management model
Yangmei LI ; Guangya LI ; Yifan CHEN ; Anqi DAI ; Xu WANG ; Yi JIN ; Tingting ZENG ; Xun LEI ; Yao FAN ; Lili YU
Chinese Journal of Preventive Medicine 2021;55(8):1006-1010
To explore the mode of"one-day outpatient"based continuous management and examine its feasibility and preliminary effects for improving menopausal syndrome and mood among menopausal women.Clinical intervention study was conducted in Obstetrics and Gynecology Center of the Third Affiliated Hospital of Chongqing Medical University from May 2020 to May 2021.The continuous management mode of "one-day outpatient service" for menopause was constructed in terms of multidisciplinary resources, including offline "one-day outpatient" health education, online 7-week group continuous intervention on "healthy lifestyle" and offline half-day focus group interview. Pre-and post-scores of the modified Kupperman scale and the positive/negative emotional scale (PANAS) were measured to compare the status of menopausal syndrome and emotional experience of Seventy-eight female participants (40-60 years old), meanwhile, before and after comparison of the blood lipid and body composition indexes of participants were also performed. Paired t test or Wilcoxon signed rank test were used.Results show that the pre-and post Kupperman scores were 14.65±8.51 vs 10.26±5.83 ( t=-5.59, P<0.01), and the positive emotional scores (pre- 28.53±5.85 vs post- 30.13±6.30) were improved ( t=2.59, P=0.012) and negative emotional scores [pre- 20.5(10) vs post- 17.0(7)] were decreased ( Z=-5.09, P<0.01). The triglyceride level of participants declined from (1.27±0.54) mmol/L to (1.09±0.38) mmol/L ( t=-2.45, P<0.05). In addition, the body mass index(pre- 22.52±2.34 vs post- 22.06±2.22), percentage of body fat (pre- 31.72±6.22 vs post- 30.91±6.52)and Visceral fat area(pre- 83.96±30.26 vs post- 79.66±29.71) were all improved ( t=-3.58, t=-2.57, t=-2.59, P<0.05). Therefore,the mode of"one-day outpatient"based continuous management can effectively improve menopausal syndrome and adverse mood, reduce patients′ blood lipid, improve the body composition, and maybe contribute to the prevention of long-term chronic diseases.
7.Experience of pain management barriers in cancer patients and caregivers: a Meta-synthesis of qualitative research
Xiaoyi LIU ; Yushuang LI ; Yuze CHEN ; Yuchen MENG ; Guangya WANG ; Cuiping XU
Chinese Journal of Practical Nursing 2024;40(17):1344-1352
Objective:To systematically integrate the qualitative research on effective pain management disorders of cancer patients and caregivers, and to provide reference for patients and caregivers to safely and effectively implement cancer pain management.Methods:The qualitative studies on the experiences and obstacles of cancer patients and caregivers in cancer pain management were retrieved from electronic databases of PubMed, Web of Science, Cochrane Library, Embase, CINAHL, China National Knowledge Infrastructure, China Biology Medicine, VIP and Wanfang data from inception to September 2023. The quality of the literature was evaluated according to Joanna Briggs Institute Evidence Based Healthcare Center Critical Appraisal Tool for qualitative studies in Australia. Meta-synthesis was used to conduct the synthesis.Results:A total of 9 articles were included, and 46 research results were extracted, forming 14 categories, which were further summarized into 4 integrated results: patient-related pain management disorders, caregiver-related pain management disorders, medical staff-related pain management disorders, and health care system-related pain management disorders.Conclusions:Multiple factors cause obstacles for cancer patients and caregivers to participate in pain management. Medical staff should have a deep understanding of patients′pain problems and explore pain management plans and interventions suitable for cancer patients, so as to reduce the degree of cancer pain management obstacles.
8.The expression and significance of iNOS, PDGF-B and LPS in rat models with Budd-Chiari syndrome
Nan ZHU ; Tiantian ZHANG ; Weifu LÜ ; Delei CHENG ; Guangya ZHOU ; Weishi CHEN ; Baolai LIU ; Jiangtao REN ; Dong LU ; Chunze ZHOU
Journal of Interventional Radiology 2019;28(3):262-267
Objective To investigate the expression and significance of inducible nitric oxide synthase (iNOS), platelet-derived growth factor (PDGF)-B and lipopolysaccharide (LPS) in rat models with Budd-Chiari syndrome (BCS) . Methods BCS model was established by partial ligation of inferior vena cava in the posterior segment of the liver. The experimental rats were divided into control group (n=20), model group (n=20) and sham group (n=20) . Liver tissues were collected for immunohistochemistry, HE and Masson staining, and the expression levels of iNOS, PDGF-B and LPS were determined. Results The LPS value in model group was higher than that in both control group and sham group (P=0.001) . The mRNA and protein expressions of iNOS and PDGF-B in model group were higher than those in both control group and sham group (P=0.001) . Statistically significant differences in mRNA and protein expressions of iNOS and PDGF-B existed between each other among the subgroups (P=0.001) . In model group iNOS was positively correlated with PDGF-B and LPS; liver fibrosis was positively correlated with LPS and negatively correlated with PDGFB. Conclusion The damage and repair of BCS is a complicated process. The iNOS, PDGF-B and LPS may play different roles in different stages of BCS. How to regulate their balance in liver fibrosis may be a direction that deserves further study.
9.Regulatory effect of Diwu Yanggan Decoction on lysoglycerophospholipids in circulating exosomes in a mouse model of nonalcoholic fatty liver disease
Guangya CHEN ; Xingliang XIANG ; Zhaoxiang ZENG ; Rongzeng HUANG ; Shuna JIN ; Mingzhong XIAO ; Chengwu SONG
Journal of Southern Medical University 2024;44(7):1382-1388
Objective To evaluate the regulatory effect of Diwu Yanggan(DWYG)Decoction on lysoglycerophospholipids(Lyso-GPLs)in circulating exosomes in a mouse model of nonalcoholic fatty liver disease(NAFLD).Methods Circulating exosomes isolated from mouse serum by size exclusion chromatography were morphologically characterized using transmission electron microscope and examined for surface markers CD9,CD63 and TSG101 using Western blotting.Twenty-four male Kunming mice were randomized into 3 groups for normal feeding(control,n=8)or high-fat diet feeding for 1 week to induce NAFLD,after which the latter mice were given DWYG decoction(treatment group,n=8)or normal saline(model group,n=8)by gavage for 4 weeks.After the last treatment,blood samples were collected from the mice for testing serum TC,HDL-C,LDL-C,ALT and AST levels and isolating circulating exosomes.Using multivariate statistical analysis based on targeted metabolomics strategy,the potential biomarkers for Lyso-GPLs in the exosomes were screened.Results The isolated exosomes about 100 nm in size had a typical saucer-like structure with distinct double-layer membranes and a mean particle size of 137.5 nm and expressed the specific surface marker proteins CD9,CD63 and TSG101.The mouse models of NAFLD had significantly increased serum levels of TC,HDL-C,LDL-C and AST and lowered serum ALT level.A total of 43 Lyso-GPLs with significant reduction after DWYG Decoction treatment were identified in NAFLD mice.Conclusion DWYG Decoction can regulate Lyso-GPLs in circulating exosomes in NAFLD mice,which provides a new clue for studying the therapeutic mechanism of DWYG Decoction for liver disease.
10.Regulatory effect of Diwu Yanggan Decoction on lysoglycerophospholipids in circulating exosomes in a mouse model of nonalcoholic fatty liver disease
Guangya CHEN ; Xingliang XIANG ; Zhaoxiang ZENG ; Rongzeng HUANG ; Shuna JIN ; Mingzhong XIAO ; Chengwu SONG
Journal of Southern Medical University 2024;44(7):1382-1388
Objective To evaluate the regulatory effect of Diwu Yanggan(DWYG)Decoction on lysoglycerophospholipids(Lyso-GPLs)in circulating exosomes in a mouse model of nonalcoholic fatty liver disease(NAFLD).Methods Circulating exosomes isolated from mouse serum by size exclusion chromatography were morphologically characterized using transmission electron microscope and examined for surface markers CD9,CD63 and TSG101 using Western blotting.Twenty-four male Kunming mice were randomized into 3 groups for normal feeding(control,n=8)or high-fat diet feeding for 1 week to induce NAFLD,after which the latter mice were given DWYG decoction(treatment group,n=8)or normal saline(model group,n=8)by gavage for 4 weeks.After the last treatment,blood samples were collected from the mice for testing serum TC,HDL-C,LDL-C,ALT and AST levels and isolating circulating exosomes.Using multivariate statistical analysis based on targeted metabolomics strategy,the potential biomarkers for Lyso-GPLs in the exosomes were screened.Results The isolated exosomes about 100 nm in size had a typical saucer-like structure with distinct double-layer membranes and a mean particle size of 137.5 nm and expressed the specific surface marker proteins CD9,CD63 and TSG101.The mouse models of NAFLD had significantly increased serum levels of TC,HDL-C,LDL-C and AST and lowered serum ALT level.A total of 43 Lyso-GPLs with significant reduction after DWYG Decoction treatment were identified in NAFLD mice.Conclusion DWYG Decoction can regulate Lyso-GPLs in circulating exosomes in NAFLD mice,which provides a new clue for studying the therapeutic mechanism of DWYG Decoction for liver disease.