1.Establishment and optimization of the method for related substances in myristyl alcohol
Xinxin FANG ; Chuanmei HU ; Cuixia YAN ; Hong SHAO ; Luxia ZHENG
Drug Standards of China 2025;26(2):162-166
Objective:To establish a GC method for the determination of related substances in myristyl alcohol.Methods:Use a column packed with polyethylene glycol as the stationary phase(HP-INNOWAX,0.25 mm×30 m,0.25 μm).Maintain the column temperature at 90℃,raise the temperature to 180℃by 5℃per minutes,maintain for 25 minutes.The temperatures of injection port is 270℃.The temperatures of detector is 280℃.Cal-culate the content by normalization method.Result:Lauryl alcohol,myristyl alcohol,pentadecanol,cetyl alcohol,stearyl alcohol and oleyl alcohol showed good linear relationships within the ranges of 6.2-123.8,4.2-134.2,5.2-104.2,4.5-90.3,4.8-96.0,4.8-95.2 μg·mL-1,respectively,with the correlation coefficient above 0.999 8.The limit of detection of aforementioned fatty alcohols were 0.2,0.2,0.2,0.3,0.5 and 0.5 μg·mL-1,which were more sensitive than the method in USP monotherapy Myristyl Alcohol.The content of lauryl alcohol was 0.2%-0.6%and that of cetyl alcohol was 0.1%-0.9%in 5 batches of samples.Sum of re-lated fatty alcohols and unspecified impurities was 0.7%-2.5%.Conclusion:The method established in this study has good separation effect,high specificity and high sensitivity,and solved the problem of difficult identifica-tion of related fatty alcohols caused by high noise at the baseline of the method in USP monotherapy myristyl alco-hol.It can be used for the the determination of related substances in myristyl alcohol.It also provides reference and guidance for the quality management and control of other fatty alcohols.
2.Establishment and optimization of the method for related substances in myristyl alcohol
Xinxin FANG ; Chuanmei HU ; Cuixia YAN ; Hong SHAO ; Luxia ZHENG
Drug Standards of China 2025;26(2):162-166
Objective:To establish a GC method for the determination of related substances in myristyl alcohol.Methods:Use a column packed with polyethylene glycol as the stationary phase(HP-INNOWAX,0.25 mm×30 m,0.25 μm).Maintain the column temperature at 90℃,raise the temperature to 180℃by 5℃per minutes,maintain for 25 minutes.The temperatures of injection port is 270℃.The temperatures of detector is 280℃.Cal-culate the content by normalization method.Result:Lauryl alcohol,myristyl alcohol,pentadecanol,cetyl alcohol,stearyl alcohol and oleyl alcohol showed good linear relationships within the ranges of 6.2-123.8,4.2-134.2,5.2-104.2,4.5-90.3,4.8-96.0,4.8-95.2 μg·mL-1,respectively,with the correlation coefficient above 0.999 8.The limit of detection of aforementioned fatty alcohols were 0.2,0.2,0.2,0.3,0.5 and 0.5 μg·mL-1,which were more sensitive than the method in USP monotherapy Myristyl Alcohol.The content of lauryl alcohol was 0.2%-0.6%and that of cetyl alcohol was 0.1%-0.9%in 5 batches of samples.Sum of re-lated fatty alcohols and unspecified impurities was 0.7%-2.5%.Conclusion:The method established in this study has good separation effect,high specificity and high sensitivity,and solved the problem of difficult identifica-tion of related fatty alcohols caused by high noise at the baseline of the method in USP monotherapy myristyl alco-hol.It can be used for the the determination of related substances in myristyl alcohol.It also provides reference and guidance for the quality management and control of other fatty alcohols.
3.Effect of Tele-exercise Interventions on Quality of Life in Cancer Patients: A Meta-analysis
Xiaoli CHEN ; Chuanmei ZHU ; Juejin LI ; Lin ZHOU ; Shu ZHANG ; Yun ZHANG ; Xiaolin HU
Asian Nursing Research 2024;18(4):348-357
Purpose:
To evaluate the impacts of tele-exercise intervention with cancer patients’ quality of life, taking into account the influence of the duration of tele-exercise intervention, type of intervention, and gender of cancer patients on quality of life.
Methods:
The PubMed (MEDLINE), Embase, CINAHL, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and PsycINFO databases were searched from inception to August 21, 2023. The Cochrane Collaboration's risk of bias tool 2 was utilized to estimate the risk of bias, and the Grading of Recommendations, Assessment. For statistical analyses, R Studio was employed.
Results:
This meta-analysis contained eight trials. When compared to controls, tele-exercise interventions (SMD = 0.41, 95% CI: 0.12 to 0.70, p < .010; I2 = 54%, p = .030) have a positive influence on boosting the quality of life within cancer patients. Subgroup analyses demonstrated the greater effectiveness of tele-exercise in enhancing the quality of life of cancer patients when the duration was greater than or equal to 10 weeks. Furthermore, tele-exercise was found to have a stronger advantageous effect on quality of life among female cancer. In addition, among the types of interventions for tele-exercise, neither web-based nor telephone-based formats significantly enhanced quality of life among cancer patients.
Conclusion
Tele-exercise interventions are a cost-effective and feasible non-pharmacologic complementary way to promote cancer patients' quality of life. Additional large-sample, carefully designed randomized controlled trials are warranted to further validate the impact of tele-exercise concerning cancer patients’ quality of life.
4.Effect of Tele-exercise Interventions on Quality of Life in Cancer Patients: A Meta-analysis
Xiaoli CHEN ; Chuanmei ZHU ; Juejin LI ; Lin ZHOU ; Shu ZHANG ; Yun ZHANG ; Xiaolin HU
Asian Nursing Research 2024;18(4):348-357
Purpose:
To evaluate the impacts of tele-exercise intervention with cancer patients’ quality of life, taking into account the influence of the duration of tele-exercise intervention, type of intervention, and gender of cancer patients on quality of life.
Methods:
The PubMed (MEDLINE), Embase, CINAHL, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and PsycINFO databases were searched from inception to August 21, 2023. The Cochrane Collaboration's risk of bias tool 2 was utilized to estimate the risk of bias, and the Grading of Recommendations, Assessment. For statistical analyses, R Studio was employed.
Results:
This meta-analysis contained eight trials. When compared to controls, tele-exercise interventions (SMD = 0.41, 95% CI: 0.12 to 0.70, p < .010; I2 = 54%, p = .030) have a positive influence on boosting the quality of life within cancer patients. Subgroup analyses demonstrated the greater effectiveness of tele-exercise in enhancing the quality of life of cancer patients when the duration was greater than or equal to 10 weeks. Furthermore, tele-exercise was found to have a stronger advantageous effect on quality of life among female cancer. In addition, among the types of interventions for tele-exercise, neither web-based nor telephone-based formats significantly enhanced quality of life among cancer patients.
Conclusion
Tele-exercise interventions are a cost-effective and feasible non-pharmacologic complementary way to promote cancer patients' quality of life. Additional large-sample, carefully designed randomized controlled trials are warranted to further validate the impact of tele-exercise concerning cancer patients’ quality of life.
5.Effect of Tele-exercise Interventions on Quality of Life in Cancer Patients: A Meta-analysis
Xiaoli CHEN ; Chuanmei ZHU ; Juejin LI ; Lin ZHOU ; Shu ZHANG ; Yun ZHANG ; Xiaolin HU
Asian Nursing Research 2024;18(4):348-357
Purpose:
To evaluate the impacts of tele-exercise intervention with cancer patients’ quality of life, taking into account the influence of the duration of tele-exercise intervention, type of intervention, and gender of cancer patients on quality of life.
Methods:
The PubMed (MEDLINE), Embase, CINAHL, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and PsycINFO databases were searched from inception to August 21, 2023. The Cochrane Collaboration's risk of bias tool 2 was utilized to estimate the risk of bias, and the Grading of Recommendations, Assessment. For statistical analyses, R Studio was employed.
Results:
This meta-analysis contained eight trials. When compared to controls, tele-exercise interventions (SMD = 0.41, 95% CI: 0.12 to 0.70, p < .010; I2 = 54%, p = .030) have a positive influence on boosting the quality of life within cancer patients. Subgroup analyses demonstrated the greater effectiveness of tele-exercise in enhancing the quality of life of cancer patients when the duration was greater than or equal to 10 weeks. Furthermore, tele-exercise was found to have a stronger advantageous effect on quality of life among female cancer. In addition, among the types of interventions for tele-exercise, neither web-based nor telephone-based formats significantly enhanced quality of life among cancer patients.
Conclusion
Tele-exercise interventions are a cost-effective and feasible non-pharmacologic complementary way to promote cancer patients' quality of life. Additional large-sample, carefully designed randomized controlled trials are warranted to further validate the impact of tele-exercise concerning cancer patients’ quality of life.
6.Incidence and Risk Factors for Radiotherapy-Induced Oral Mucositis Among Patients With Nasopharyngeal Carcinoma: A Meta-Analysis
Juejin LI ; Chuanmei ZHU ; Yun ZHANG ; Chang GUAN ; Qi WANG ; Yuxin DING ; Xiaolin HU
Asian Nursing Research 2023;17(2):70-82
Purpose:
To evaluate the incidence and identify the risk factors for radiotherapy-induced oral mucositis among patients with nasopharyngeal carcinoma.
Methods:
A meta-analysis was conducted. Eight electronic databases (Medline, Embase, Cochrane Library, CINAHL Plus with Full Text, Web of Science, China National Knowledge Infrastructure, Wanfang Database, and Chinese Scientific Journals Database) were systematically searched from inception to 4 March 2023 for relevant studies. Study selection and data extraction were conducted by two independent authors. The Newcastle‒Ottawa scale was used for quality assessment among the included studies. Data synthesis and analyses were performed in R software package version 4.1.3 and Review Manager Software 5.4. The pooled incidence was calculated using proportions with 95% confidence intervals (CIs), and the risk factors were evaluated using the odds ratio (OR) with 95% CIs. Sensitivity analysis and predesigned subgroup analyses were also conducted.
Results:
A total of 22 studies published from 2005 to 2023 were included. The results of the meta-analysis showed that the incidence of radiotherapy-induced oral mucositis was 99.0% among nasopharyngeal carcinoma patients, and the incidence of severe radiotherapy-induced oral mucositis was 52.0%. Poor oral hygiene, overweight before radiotherapy, oral pH < 7.0, the use of oral mucosal protective agents, smoking, drinking, combined chemotherapy, and the use of antibiotics at early treatment stage are risk factors for severe radiotherapy-induced oral mucositis. Sensitivity analysis and subgroup analyses also revealed that our results are stable and reliable.
Conclusions
Almost all patients with nasopharyngeal carcinoma have suffered from radiotherapy-induced oral mucositis, and more than half of patients have experienced severe oral mucositis. Facilitating oral health might be the key focus of reducing the incidence and severity of radiotherapy-induced oral mucositis among nasopharyngeal carcinoma patients.Registration numberCRD42022322035.
7.The effects of different frequencies of repetitive transcranial magnetic stimulation on post-stroke dysphagia
Yichen ZHANG ; Qiang WANG ; Pingping MENG ; Chuanmei YANG ; Zhanfei LI ; Ziqing ZHANG ; Di YANG ; Jiali HU
Chinese Journal of Physical Medicine and Rehabilitation 2020;42(4):295-299
Objective:To explore the effect of high-frequency and low-frequency transcranial magnetic stimulation (rTMS) on the unaffected pharyngeal motor cortex of dysphagic stroke survivors.Methods:Forty-two stroke survivors with dysphagia were enrolled and randomly divided into a high-frequency stimulation group ( n=14), a low-frequency stimulation group ( n=13), and a sham group ( n=15). All received conventional swallowing training. The high- and low-frequency stimulation groups additionally received 250 pulses of 5Hz or 1Hz rTMS over the cortical representation of the mylohyoid muscle on the unaffected side daily for 2 consecutive weeks. In the sham group, sham rTMS was applied with identical protocols. Before and after the intervention, all subjects were subjected to a videofluoroscopic swallowing study and surface electromyography (sEMG). They were also evaluated using the fuctional dysphagia scale (FDS) and the penetration aspiration scale (PAS). Results:After the intervention, a significant improvement was observed in the average PAS, FDS and sEMG results in both rTMS groups compared with the sham control group. The average FDS score of the high-frequency stimulation group had improved significantly more than that of the low-frequency group.Conclusions:rTMS of the contra-lesional cortical representation of the mylohyoid muscle at either 5Hz or 1Hz can effectively improve dysphagia post-stroke. The higher frequency gives superior results.
8.Preparation and quality control of compound quercetin creams
Chuanmei WEI ; Limin HU ; Qizhong FAN ; Shaowei SUN ; Peiming GAO
Chongqing Medicine 2015;(23):3236-3238,3241
Objective To study the preparation of quercetin compound cream and establish its standard of quality control. Methods The composition of recipe and manufacturing technique were designed.The content of components were determined by HPLC,and its stability tests were carried out.Results The product was a kind of yellow smooth cream.The linear ranges were 0.053-1.696 μg for quercetin(r=0.999 9),0.053-1.696 μg for 8-methoxypsoralen(r=0.999 8)and 0.100-1.000 μg for beta-methasone(r=0.999 9).The average recovery rate were 99.83%,99.52%,and 99.74% of quercetin,8-methoxypsoralen,and beta-methasone(n=9).After 12 months′long term stability test,all the 3 batches of sample preparations were in line with relevant regu-lations.Conclusion The designed recipe was reasonable,and the manufacturing technique was feasible,with stable and controllable quality.

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