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1.
China Pharmacy ; (12): 313-318, 2022.
Article in Chinese | WPRIM | ID: wpr-913089

ABSTRACT

OBJECTIVE To study different extraction fractions of Agrimonia pilosa against h epatic fibrosis. METHODS Using hepatic stellate cells HSC-T 6 of rats as objects ,the effects of different extraction fractions (total extract ,ethyl acetate fraction , petroleum ether fraction and n-butanol fraction )with different concentrations (0.5,5,50,500,5 000 μg/mL,calculated by raw drug)of A. pilosa on the proliferation of HSC-T 6 cells were detected (after treated for 24,48,72 h);median inhibition concentration(IC50)was also caculated. Platelet-derived growth factor (PDGF-BB)was used to induce the activation of HSC-T 6 cells to establish hepatic fibrosis cell model. Flow cytometry was used to detect the effects of different extraction fractions of A. pilosa on apoptosis of HSC-T 6 cells. The expression of collagen Ⅰ(Col-Ⅰ)in the supernatant was detected by enzyme linked immunosorbent assay. The expressions of α-smooth muscle actin (α-SMA),Col-Ⅰ,B-cell lymphoma- 2(Bcl-2),Bcl-2-associated X protein (Bax)and caspase- 3 were detected by Western blot assay. RESULTS Total extract ,ethyl acetate fraction ,petroleum ether fraction and n-butanol fraction of A. pilosa could significantly increase the apoptotic rate of HSC-T 6 cells(P<0.01). After treated for 24 h,IC50 of above fractions were 50.17,20.75,5.82,4.09 μg/mL,respectively. After intervened with PDGF-BB ,the expression of Col- Ⅰ in supernatant of HSC-T 6 cells as well as protein expression of Col- Ⅰ,α-SMA,Bcl-2,Bax and caspase- 3 in HSC-T6 cells were increased significantly (P<0.01). After intervened with different extraction fractions of A. pilosa ,most of the expressions of above proteins in HSC-T 6 cell culture supernatant or cells were significantly reversed compared with PDGF-BB group (P<0.05 or P<0.01), and the intervention effect of n-butanol fraction of A. pilosa was the most significant. CONCLUSIONS Different extraction fractions of A. pilosa can inhibite the proliferation of HSC-T 6 cells and induce their apoptosis;n-butanol fraction from A. pilosa may be an effective fraction to exert the effect of anti-hepatic fibrosis.

2.
Article in English | WPRIM | ID: wpr-928936

ABSTRACT

OBJECTIVE@#To determine the prevalence, factors associated with and patterns of concomitant Chinese medicine (CM) with Western treatment use among patients with rheumatoid arthritis (RA) in a tertiary referral centre (Singapore General Hospital) in Singapore.@*METHODS@#We conducted a cross-sectional interviewer-administered survey of a consecutive sample of patients with RA in Singapore General Hospital centre regarding their CM use including data on patient demographics, disease characteristics, concomitant use of CM and reasons, concerns and disclosure patterns from March to August 2015. Univariate and multivariate logistic regression analyses were performed to determine the associations of CM use.@*RESULTS@#Prevalence of CM use among the 258 patients surveyed (male: female 42: 216; Chinese: Malay: Indian 191: 29: 34; mean age: 61 years; mean duration of RA: 10 years) was 46.1% (119/258). On multivariate analysis, Chinese ethnicity (OR, 95% CI: 4.11, 1.49-11.36), Chinese speakers (OR, 95% CI: 2.35, 1.03-5.54), middle-income group (OR, 95% CI: 2.53, 1.01-6.31) and greater learned helplessness (OR, 95% CI: 1.13, 1.04-1.22) were significantly associated with CM use. More CM users disclosed their CM use to CM physicians (87.3%, 96/110), sought advice from them on treatment interactions (59.4%, 57/96) and how best to combine treatments (49.0%, 47/96) than did so with rheumatologists (42.0%, 50/119; 40.0%, 20/50; and 42.0%, 21/50, respectively). Forty-two percentage (29/69) of patients who concealed CM use from rheumatologists because their rheumatologists did not specifically enquire about CM use.@*CONCLUSIONS@#Concomitant CM use among patients with RA treated in a tertiary referral centre in Singapore is high but voluntary disclosure is low. The associations identified can help doctors identify and enquire about CM use, minimizing potential adverse interactions.


Subject(s)
Arthritis, Rheumatoid/epidemiology , Cross-Sectional Studies , Ethnicity , Female , Humans , Male , Medicine, Chinese Traditional , Middle Aged , Prevalence
3.
Article in Chinese | WPRIM | ID: wpr-928884

ABSTRACT

As an important auxiliary tool for amputees to gain abled limb functions, prosthetic limbs with decoration or feedforward control channel could not meet the needs. In order to enable the prosthesis to deliver the information, includes temperature, pressure, position, shape and so on, a variety of sensory feedback methods have been integrated into the prosthesis. According to the position of the feedback terminal on the human body, the perceptual feedback systems include invasive and noninvasive sensory feedback. This review presents the research progress of these perceptual feedback techniques, and summarizes the problems in the application in artificial limbs. Finally, the development trend of sensory feedback technology in prostheses is prospected.


Subject(s)
Amputees , Artificial Limbs , Feedback, Sensory , Humans , Prosthesis Design , Technology
4.
Article in Chinese | WPRIM | ID: wpr-928405

ABSTRACT

OBJECTIVE@#To carry out genetic testing for a patient with 45,X/46,XY mosaicism and autism spectrum disorder (ASD).@*METHODS@#Peripheral blood samples of the patient and his parents were collected for the extraction of genomic DNA. Trio-based whole exome sequencing and Sanger sequencing were carried out thereafter.@*RESULTS@#The proband and his father were found to harbor a heterozygous c.4781G>A (p.Arg1594Gln) variant of the CACNA1I gene. In addition, the proband was also found to harbor a de novo c.268C>T (p.Arg90Trp) missense variant of the MTRR gene. Based on guidelines of the American College of Medical Genetics and Genomics (ACMG), the c.4781G>A (p.Arg1594Gln) variant of the CACNA1I gene was predicted to be pathogenic (PVS1, PM1, PM2, PP3), while the c.268C>T (p.Arg90Trp) variant of the MTRR gene was predicted to be of uncertain significance.@*CONCLUSION@#Variants of the CACNA1I and MTRR genes, together with the chromosomal mosaicism, may have predisposed to the susceptibility to the ASD in this patient.


Subject(s)
Autism Spectrum Disorder/genetics , Genomics , Heterozygote , Humans , Mosaicism , Whole Exome Sequencing
5.
Article in Chinese | WPRIM | ID: wpr-928181

ABSTRACT

This study aims to establish a method for determination of paeonol(Pae), eugenol(Eug), and piperine(Pip) content in receptor liquid and research on the permeability and pharmacokinetics of Huoxue Zhitong gel patch and microemulsion gel. The Franz diffusion experiment was conducted to assess the percutaneous permeability, and the microdialysis method was employed to assess pharmacokinetics of Huoxue Zhitong gel patch and microemulsion gel. The content of Pae, Eug, and Pip in receptor liquid in vitro and in vivo was determined by HPLC and UPLC-MS. The Q_n and J_(ss) of Pae, Eug, and Pip in the gel patch were significantly higher than those in the microemulsion gel, indicating that the drug release was faster in the gel patch. The C_(max), AUC_(0-760), and MRT of Pae, Eug, and Pip in the gel patch were higher than those in the microemulsion gel, indicating that the gel patch can promote the penetration and prolong the skin residence of the drug. The results of this study provide reference for improving the dosage form of Huoxue Zhitong patch.


Subject(s)
Administration, Cutaneous , Chromatography, Liquid , Emulsions , Permeability , Skin/metabolism , Skin Absorption , Tandem Mass Spectrometry
6.
Article in Chinese | WPRIM | ID: wpr-927339

ABSTRACT

Heat-sensitive moxibustion is the appropriate technique of the external treatment in traditional Chinese medicine and it is widely used in community because of its "easy learning, simple operation and clear curative effect". Pragmatic randomized controlled trial is a main intervention design in the real world study, which provides a high-level evidence for the effectiveness assessment of heat-sensitive moxibustion in community management. Focusing on the key links of randomization, e.g. block randomization, stratified randomization, cluster randomization, sample size allocation, allocation concealment and blinding, the paper elaborates the advantages, disadvantages and technical details of two-stage randomization with consideration of patient preference in pragmatic randomized controlled trials of heat-sensitive moxibustion in community. It facilitates improving the quality of evidence, reproducibility and methodological homogeneity among different trials.


Subject(s)
Hot Temperature , Humans , Moxibustion , Patient Preference , Random Allocation , Reproducibility of Results
7.
International Eye Science ; (12): 736-740, 2022.
Article in Chinese | WPRIM | ID: wpr-923403

ABSTRACT

@#AIM: To construct and evaluate a diagnostic model based on transfer learning and data augmentation as a non-invasive tool for fusarium identification of fungal keratitis. <p>METHODS: A retrospective study. In this study, 2 157 images of fungal keratitis patients who underwent <i>in vivo</i> confocal microscopy examination in the Department of Ophthalmology of the people's Hospital of Guangxi Zhuang Autonomous Region from March 2017 to January 2020 were included as the dataset, which was classified according to the results of microbial culture. The dataset was subsequently randomly divided into training set(1 380 images), validation set(345 images)and test set(432 images). We used the transfer learning Inception-ResNet V2 network to construct a diagnostic model, and to compare the performance of the model trained on different datasets. The performance of the diagnostic model evaluated with specificity, sensitivity, accuracy, and area under the receiver operating characteristics curve(AUC).<p>RESULTS: The model trained with the original training set had a specificity rate of 71.6%, a sensitivity rate of 72.0%, an accuracy rate of 71.8% and AUC of 0.785(95%<i>CI</i>: 0.742-0.828, <i>P</i><0.0001). And the model trained with the augmented training set had a specificity rate of 76.6%, a sensitivity rate of 83.1%, an accuracy rate of 79.9% and AUC of 0.876(95%<i>CI</i>: 0.843-0.909, <i>P</i><0.0001), which made the model's prediction performance boost.<p>CONCLUSION: In this study, we constructed an intelligent diagnosis system for fungal keratitis fusarium through transfer learning, which has higher accuracy, and realized the intelligent diagnosis of fungal keratitis pathogen fusarium. Furthermore, we verified that the data augmentation strategy can improve the performance of the intelligent diagnosis system when the original dataset is limited, and this method can be used for intelligent diagnosis and identification of fungal keratitis pathogen fusarium.

8.
Article in English | WPRIM | ID: wpr-888670

ABSTRACT

OBJECTIVE@#To assess whether adjuvant Chinese patent medicines (CPMs) to standard treatment could reduce recurrent bleeding after variceal bleeding in cirrhotic patients.@*METHODS@#This study retrospectively collected 555 consecutive patients who recovered from variceal bleeding. A population-based cohort study was established depending on if adjuvant CPMs were administered to prevent rebleeding. A total of 139 patients who had taken ⩾28 cumulative defined daily doses (cDDDs) of CPMs were included in the CPMs cohort, and 416 patients who used 180 cDDDs of CPMs, respectively. The median rebleeding interval in the CPMs cohort was significantly larger compared with the non-CPMs cohort (113.5 vs. 93.0 days; P=0.008).@*CONCLUSION@#Adjuvant CPMs to standard therapy can significantly reduce the incidence of variceal rebleeding and delay the time to rebleeding.

9.
Article in Chinese | WPRIM | ID: wpr-906457

ABSTRACT

Objective:To explore the effect of Bushen Huatan prescription on serum lipopolysaccharide (LPS) and Toll-like receptor 4 (TLR4)/ myeloid cell differentiation protein 88 (MyD88)/nuclear transcription factor-<italic>κ</italic>B (NF-<italic>κ</italic>B) signaling pathway in rats with ovariectomy-induced osteoporosis. Method:Sixty SPF 6-month-old female rats were randomly divided into sham operation group, model group, estradiol valerate group and Bushen Huatan prescription low, medium and high dose groups.One week after modeling by bilateral ovariectomy, 8 rats in each group were selected to receive intragastric administration.The estradiol valerate group was given 0.184 mg·kg<sup>-1</sup> by gavage, and Bushen Huatan prescription low, middle and high dose groups were given 4.7, 9.4 and 18.8 g·kg<sup>-1</sup> by gavage, sham operation group and model group were given 0.9% saline 4 mL by gavage respectively.After 12 weeks of intervention, the rats were sacrificed for detection.Serum LPS was detected by enzyme linked immunosorbent assay (ELISA), while protein expressions of TLR4, MyD88 and phosphorylated (p)-NF-<italic>κ</italic>B p65 in bone tissue were detected by Western blot, and the mRNA expressions of TLR4, MyD88, NF-<italic>κ</italic>B p65, IL-1<italic>β</italic>, and IL-6 in bone tissue were detected by quantitative real-time polymerase chain reaction(PCR). Result:Compared with sham operation group, the serum LPS level as well as protein expression of TLR4, MyD88, p-NF-<italic>κ</italic>B p65 and mRNA expression of TLR4, MyD88, NF-<italic>κ</italic>B p65, IL-1<italic>β</italic>, and IL-6 significantly increased in model group(<italic>P</italic><0.05).Compared with the model group, serum LPS level, protein expression of TLR4, MyD88, and p-NF-<italic>κ</italic>B p65, mRNA levels of TLR4, MyD88, and NF-<italic>κ</italic>B p65 in bone tissues as well as downstream inflammatory factors IL-1<italic>β</italic>, IL-6 mRNA expression decreased to different degrees in estradiol valerate group and Bushen Huatan prescription high dose group(<italic>P</italic><0.05). Conclusion:Bushen Huatan prescription can reduce serum LPS content, regulate mRNA and protein expression of TLR4, MyD88, NF-<italic>κ</italic>B p65 and p-NF-<italic>κ</italic>B p65 in TLR4/MyD88/NF-<italic>κ</italic>B pathway, and down-regulate mRNA levels of IL-1<italic>β</italic> and IL-6 in bone tissues to improve bone microstructure and inhibit the development of postmenopausal osteoporosis (PMOP).

10.
Article in Chinese | WPRIM | ID: wpr-906294

ABSTRACT

Taohong Siwutang, originating from Fuke Bingjian by CHAI Dehua in the Qing Dynasty, has been included in the first batch of the 100 classical prescriptions published by the National Administration of Traditional Chinese Medicine(TCM). Taohong Siwutang is composed of six Chinese medicinals, namely the wine-washed Angelicae Sinensis Radix, wine-washed Rehmanniae Recens Radix, wine-washed Carthami Flos, wine-processed Paeoniae Alba Radix, Persicae Semen undergoing peel-off process in hot water, and Chuanxiong Rhizoma, possessing the effects of nourishing blood, promoting blood circulation, and removing blood stasis, and it is mainly applicable to patients with blood deficiency and stasis syndrome. The textual research on the key information of classical prescriptions and the summarization of their ancient and modern applications are conducive to learning about the research status and confirming the subsequent research direction, thus better guiding the preparation of substance benchmarks and the in-depth exploration of preparations. By exploring the sources and historic evolution of Taohong Siwutang and each Chinese medicinal, this paper uncovered the prescription composition, origin of each Chinese medicinal, processing method, and prescription dose. The review of its clinical applications showed that the application scope in modern times has been extended and expanded in contrast to that recorded in ancient books. As revealed by the clinical application literature, it has been mainly employed for treating gynecological diseases such as dysmenorrhea and irregular menstruation, orthopedic diseases like fracture, dermatological diseases such as chloasma, and internal diseases such as coronary heart disease, all of which were differentiated into the blood deficiency and stasis syndrome. It could be seen that Taohong Siwutang had great clinical application value. This review of the ancient and modern literature concerned with Taohong Siwutang and the analysis and determination of its key information are expected to provide a reference for the rational clinical application and further research of Taohong Siwutang.

11.
Article in Chinese | WPRIM | ID: wpr-906267

ABSTRACT

Objective:To study the effect of Bushen Huatan prescription on helper T cell 17 (Th17)/T regulatory cells (Treg) balance of immune T cell subsets in the prevention and treatment of postmenopausal osteoporosis. Method:Sixty 6-month-old female SD rats were randomly divided into sham operation group, model group, estradiol valerate group (0.184 mg·kg<sup>-1</sup>) and Bushen Huatan prescription low, medium and high groups (4.7, 9.4, 18.8 g·kg<sup>-1</sup>) according to the random number table. All the groups except the sham operation group received ovariectomy to make postmenopausal osteoporosis model. Intragastric administration was started 1 week after operation, and the rats in model group and sham operation group received equal volume of normal saline, once a day for 12 weeks. Microcomputed tomography (Micro CT) was then used to detect bone mass and microstructure of rats, the contents of Forkhead box protein (Foxp3) and retinoic acid related nuclear orphan receptor (ROR<italic>γ</italic>t) in serum were detected by enzyme-linked immunosorbent assay (ELISA), the mRNA expression levels of Foxp3 and ROR<italic>γ</italic>t in bone tissues were detected by Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot was used to detect the protein expression of Foxp3 and ROR<italic>γ</italic>t in bone tissues, the number of Th17 and Treg cells in each group was analyzed and compared by flow cytometry. Result:Compared with the sham operation group, the bone mass and trabeculae of the model group decreased (<italic>P</italic><0.01), the bone microstructure was destroyed, the concentration of Foxp3 in serum decreased, the concentration of ROR<italic>γ</italic>t increased (<italic>P</italic><0.01), the mRNA and protein expression levels of Foxp3 in bone tissues decreased, ROR<italic>γ</italic>t increased, the number of Treg cells in bone tissues decreased, number of Th17 cells increased (<italic>P</italic><0.01), and Th17/Treg ratio increased (<italic>P</italic><0.01) in model group. Compared with the model group, the bone mass in each treatment group increased (<italic>P</italic><0.05, <italic>P</italic><0.01), Foxp3 concentration in serum increased, ROR<italic>γ</italic>t concentration decreased (<italic>P</italic><0.01), the mRNA and protein expression levels of Foxp3 in bone tissues increased significantly (<italic>P</italic><0.05, <italic>P</italic><0.01), but no statistical difference was shown in mRNA expression between low dose group and the model group. In addition, the mRNA and protein expression of ROR<italic>γ</italic>t decreased (<italic>P</italic><0.05, <italic>P</italic><0.01), number of Treg cells increased, number of Th17 cells decreased (<italic>P</italic><0.05, <italic>P</italic><0.01), and Th17/Treg ratio decreased in treatment groups (<italic>P</italic><0.01). Conclusion:Bushen Huatan prescription can increase bone mass, improve bone microstructure, increase the number of Treg cells and decrease the number of Th17 cells in ovariectomized rats. It is concluded that Bushen Huatan prescription may play a role in preventing and treating postmenopausal osteoporosis by regulating Th17/Treg balance.

12.
Article in Chinese | WPRIM | ID: wpr-906245

ABSTRACT

Objective:To observe theclinical efficacy of modified Banxia Baizhu Tianmatang combined with acupuncture on migraine with wind phlegm disturbance syndrome, and the regulatory effect on neurovasoactive peptide and vascular endothelial activator. Method:Two hundred and fifty patients were randomly divided into control group (75 cases) and observation group (75 cases). Patients in Two group got acupuncture for 6 times, 1 time/day, after a day of rest, they got placebogranules of Banxia Baizhu Tianmatang, 10 g/time, 2 times/day. Patients in observation group got Banxia Baizhu Tianmatang, 1 dose/day, and also the same acupuncture with the therapyof control group. And the treatment lasted for 4 weeks. At the half, 1<sup>st</sup>, 2<sup>nd</sup>, 6<sup>th</sup>, 12<sup>th</sup>, 24<sup>th</sup>, and 48<sup>th</sup> hour after treatment, VAS were scored, rate of pain relief within 6, 12, and 24 hours, disappearance rate and recurrence rate of pain within 72 hours, migraine attack times, headache duration and headache degree before 4 weeks of treatment, during the treatment and after the treatment were recorded. Before and after treatment, accompanying symptoms, wind phlegm disturbance syndrome, headache impact test version-6 (HIT-6) and the migraine disability assessment questionnaire (MIDAS) were scored. And levels of calcitonin gene-related peptide (CGRP), nitric oxide (NO), endothelin-1 (ET-1), pituitary adenylate cyclase activating peptide (PACAP), S100B protein, substance P(SP), von Willebrand factor (vWF) and fibrinogen (FIB) were detected. And safety was evaluated. Result:VAS in two groups decreased at different time points (<italic>P<</italic>0.01), and VAS in observation group at 6<sup>th</sup>, 12<sup>th</sup>, 24<sup>th </sup>and 48<sup>th</sup> hour after treatment were lower than those in control group (<italic>P<</italic>0.01). The rate of pain relief in observation group at 6<sup>th</sup> and 12<sup>th</sup> hours after treatment and the disappearance rate of pain at 72<sup>th</sup> hour were 67.14%(47/70), 87.14% (61/70) and 92.86% (65/70), which were higher than 50.00% (34/68), 70.59% (48/68) and 79.41% (54/68) in control group. The recurrence rate of pain in observation group was 21.43% (15/70), which was lower than 39.71% (27/68) in control group (<italic>P<</italic>0.05). During the treatment and drug withdrawal, times of migraine attack, headache duration and headache degree were all less than those in control group (<italic>P<</italic>0.01). Scores of accompanying symptoms, wind phlegm disturbance syndrome, HIT-6 and MIDAS were all lower than those in control group (<italic>P<</italic>0.01). The clinical effect was better than that in control group (<italic>Z</italic>=2.106, <italic>P<</italic>0.05). Levels of CGRP, PACAP, S100B protein, SP, ET-1, vWF and FIB were lower than those in control group, while level of NO was higher than control group (<italic>P<</italic>0.01). Conclusion:Modified Banxia Baizhu Tianmatang combined with acupuncture had a better instant analgesic effect, with a significant effect on continuing analgesia and reducing headache recurrence. It can also alleviate migraine symptoms and accompanying symptoms, andreduce the impact of migraine on daily life and the degree of disability. Its mechanism may be related to the regulation of neurovasoactive peptides and vascular endothelial substances. It is worth for further study.

13.
Article in Chinese | WPRIM | ID: wpr-905850

ABSTRACT

Succus Bambusae, regarded as the holy medicine for the treatment of phlegm by traditional Chinese medicine experts, has the functions of clearing heat and resolving phlegm, resuscitating and relieving convulsions. In clinical practice, it is mainly used to treat phlegm-heat cough, phlegm yellow and shortness of breath, stroke with exuberant phlegm and other syndromes. The research of its processing procedure and quality standard is the key issue to realize the process modernization and quality standardization of this traditional medicine resource. On the basis of literature research, this paper conducted the herbal textual research on Succus Bambusae, sorted out its medicinal history, and compared the advantages and disadvantages of its traditional and modern preparation procedure. Based on the historical records, it is pointed out that there are still many problems in the traditional and modern processing procedure of Succus Bambusae, such as low-yield processing procedure and extensive production technology that cannot meet the requirements of large-scale green manufacturing. At present, there are a lot of literature on the comparative study of the origin, variety and processing procedure of Succus Bambusae, but most of them are limited to the chemical components, and lack of in-depth study on its pharmacodynamic substance basis and mechanism. Meanwhile, the pharmacological effects of Succus Bambusae are mostly limited to antitussive and expectorant, and few other pharmacological effects have been reported. Based on the above analysis, it is suggested that the follow-up research work can be carried out from these five aspects:①Clarifying the original source, enriching and perfecting the medicinal resources. ②Standardizing the processing procedure, establishing relevant quality standards. ③Clarifying the pharmacological mechanism, strengthening the basic research on the pharmacological effect and clinical application. ④Inheriting ancient processing, researching and developing special preparation equipment and standardizing production operation rules. ⑤Comprehensive utilization of the by-products in preparation process.

14.
Safety and Health at Work ; : 390-395, 2021.
Article in English | WPRIM | ID: wpr-903378

ABSTRACT

Background@#Health-care providers typically undergo shift work and are subjected to increased stress. Night shift work may induce disturbed sleep cycles and circadian rhythm. The objective of this study was to explore if night shift workers (NSWs) show an increased risk of abnormal thyroid-stimulating hormone (TSH). @*Methods@#We conducted a retrospective cohort study of 574 employees without thyroid disease and abnormal TSH at baseline who underwent annual check-ups between 2007 and 2016 in a medical center. NSWs were defined as those with working time schedules other than daytime hours. We calculated the incidence rate and estimated the adjusted hazard ratio (HR) for incident abnormal TSH and subclinical hypothyroidism compared with non-NSWs using a Cox regression model. @*Results@#A total of 56 incident abnormal TSH cases and 39 subclinical hypothyroidism cases in NSWs were identified during 3000 person-years of follow-up. In models adjusted for age, sex, obesity, and working departments, we found no increased relative risk for incident abnormal TSH (HR: 0.72, 95% confidence interval: 0.33–1.60) or subclinical hypothyroidism (HR: 0.52, 95% confidence interval: 0.19–1.45) when comparing NSWs to non-NSWs; nor were incidence rates significantly different among exclusively medical employees after excluding administrative staff. @*Conclusion@#In this hospital-based nine-year follow-up retrospective cohort study, NSWs were not associated with increased relative risk of incident abnormal TSH and subclinical hypothyroidism, in contrast to previous cross-sectional studies.

15.
Safety and Health at Work ; : 390-395, 2021.
Article in English | WPRIM | ID: wpr-895674

ABSTRACT

Background@#Health-care providers typically undergo shift work and are subjected to increased stress. Night shift work may induce disturbed sleep cycles and circadian rhythm. The objective of this study was to explore if night shift workers (NSWs) show an increased risk of abnormal thyroid-stimulating hormone (TSH). @*Methods@#We conducted a retrospective cohort study of 574 employees without thyroid disease and abnormal TSH at baseline who underwent annual check-ups between 2007 and 2016 in a medical center. NSWs were defined as those with working time schedules other than daytime hours. We calculated the incidence rate and estimated the adjusted hazard ratio (HR) for incident abnormal TSH and subclinical hypothyroidism compared with non-NSWs using a Cox regression model. @*Results@#A total of 56 incident abnormal TSH cases and 39 subclinical hypothyroidism cases in NSWs were identified during 3000 person-years of follow-up. In models adjusted for age, sex, obesity, and working departments, we found no increased relative risk for incident abnormal TSH (HR: 0.72, 95% confidence interval: 0.33–1.60) or subclinical hypothyroidism (HR: 0.52, 95% confidence interval: 0.19–1.45) when comparing NSWs to non-NSWs; nor were incidence rates significantly different among exclusively medical employees after excluding administrative staff. @*Conclusion@#In this hospital-based nine-year follow-up retrospective cohort study, NSWs were not associated with increased relative risk of incident abnormal TSH and subclinical hypothyroidism, in contrast to previous cross-sectional studies.

16.
Chinese Acupuncture & Moxibustion ; (12): 1249-1255, 2021.
Article in Chinese | WPRIM | ID: wpr-921040

ABSTRACT

OBJECTIVE@#To observe the effect of electroacupuncture (EA) at "Neiguan" (PC 6) on cardiac function and cardiomyocyte apoptosis in rats with acute myocardial ischemia (AMI), and to explore the correlation between myocardial protective effect of EA and inflammatory factors i.e. interleukin-1β (IL-1β) and interleukin-17 (IL-17) of "Neiguan" (PC 6) area.@*METHODS@#A total of 40 male SD rats with normal ultrasonic cardiogram were randomized into a sham-operation group, a sham-operation plus EA group, a model group and an EA group, 10 rats in each group. The AMI model was established by ligating the left anterior descending (LAD) branch of the coronary artery in the model group and the EA group, while the threading without ligating was adopted in the sham-operation group and the sham-operation plus EA group. In the sham-operation plus EA group and the EA group, EA at bilateral "Neiguan" (PC 6) was applied, with disperse-dense wave, 2 Hz/100 Hz in frequency and 2 mA in density, once a day, 20 min a time for 3 days. The cardiac ejection fraction (EF) and fractional shortening (FS) were measured by ultrasonic cardiogram to evaluate the cardiac function, the cardiomyocyte apoptosis was detected by TUNEL staining, the infiltration of inflammatory factors of "Neiguan" (PC 6) area was observed by H.E. staining, the expression of inflammatory factors IL-1β and IL-17 of "Neiguan" (PC 6) area was detected by immunofluorescence staining.@*RESULTS@#Compared with the sham-operation group, EF and FS were decreased (@*CONCLUSION@#Electroacupuncture at "Neiguan" (PC 6) can improve the cardiac function and reduce the apoptosis of cardiomyocyte in rats with acute myocardial ischemia, its mechanism may be related to the regulation of the inflammatory factors of "Neiguan" (PC 6) area.


Subject(s)
Acupuncture Points , Animals , Electroacupuncture , Male , Myocardial Ischemia/therapy , Myocardium , Rats , Rats, Sprague-Dawley
17.
Chinese Acupuncture & Moxibustion ; (12): 1023-1028, 2021.
Article in Chinese | WPRIM | ID: wpr-921003

ABSTRACT

OBJECTIVE@#To observe the effect of electroacupuncture (EA) on expression of interleukin (IL) -23/IL-17 axis and Toll-like receptor 4 (TLR4) in the infarcted tissue in rats with myocardial infarction (MI), and to explore the mechanism of EA on alleviating MI injury.@*METHODS@#Forty male SD rats were randomly divided into a sham-operation group, a sham-operation plus EA group, a model group and an EA group, 10 rats in each group. The MI models were established by ligation of left anterior descending coronary artery in the model group and EA group, while only threading was performed in the sham-operation group and sham-operation plus EA group. The rats in the sham-operation plus EA group and EA group were treated with EA at "Neiguan" (PC 6), disperse-dense wave, 2 Hz/100 Hz, 2 mA, once a day, 20 min each time, for 3 days. After the intervention, the ejection fraction (EF) was measured by echocardiography to evaluate the cardiac function; the infarct area was measured by TTC staining; the HE staining was used to observe the morphological changes of myocardial tissue; the levels of IL-23 and IL-17 in infarcted tissue were detected by ELISA; the protein expression of TLR4 in infarcted tissue was detected by Western blot.@*RESULTS@#Compared with the sham-operation group, the EF was decreased (@*CONCLUSION@#EA may alleviate the excessive inflammatory response after MI by inhibiting the expression of IL-23/IL-17 axis in MI rats, and TLR4 may be involved during the process.


Subject(s)
Animals , Electroacupuncture , Interleukin-17/genetics , Interleukin-23/genetics , Male , Myocardial Infarction/therapy , Rats , Rats, Sprague-Dawley , Toll-Like Receptor 4/genetics
18.
Article in Chinese | WPRIM | ID: wpr-888360

ABSTRACT

OBJECTIVE@#To analyze the pathogenic variants of the KIF1A gene and its corresponding protein structure in an autism spectrum disorder (ASD) family trio carrying harmful missense variants in the KIF1A gene.@*METHODS@#The peripheral blood DNA of the patient and his parents was extracted and sequenced using whole exome sequencing (WES) technology and verified by Sanger sequencing. Bioinformatics software SIFT, PolyPhen-2, Mutation Taster, and CADD software were used to analyze the harmfulness and conservation of variants. The Human Brain Transcriptome (HBT) database was used to analyze the expression of the KIF1A gene in the brain. PredictProtein and SWISS-MODEL were further used to predict the secondary structure and tertiary structure of KIF1A wild-type protein and variant protein. PyMOL V2.4 was utilized to investigate the change of hydrogen bond connection after protein variant.@*RESULTS@#The WES sequencing revealed a missense variant c.664A>C (p.Asn222His) in the child's KIF1A gene, and this variant was a de novo variant. The harmfulness prediction results suggest that this variant is harmful. By analyzing expression level of KIF1A gene in the brain. It is found that KIF1A gene widely expressed in various brain regions during embryonic development. By analyzing the variant protein structure, the missense variant of KIF1A will cause many changes in the secondary structure of protein, such as alpha-helix, beta-strand, and protein binding domain. The connection of hydrogen bond and spatial structure will also change, thereby changing the original biological function.@*CONCLUSION@#The KIF1A gene may be a risk gene for ASD.


Subject(s)
Autism Spectrum Disorder/genetics , Child , Female , Humans , Kinesins/genetics , Mutation , Mutation, Missense , Pregnancy , Protein Domains , Whole Exome Sequencing
19.
Article in Chinese | WPRIM | ID: wpr-888140

ABSTRACT

This study was mainly based on the compatibility of Puerariae Lobatae Radix and Chuanxiong Rhizoma to prepare submicron emulsion and evaluated its physical and pharmaceutical properties. Firstly, pseudo-ternary phase diagrams were drawn by dripping method which took Chuanxiong oil as the oil phase and the area of microemulsion region as the index. On this basis, suitable emulsifier and co-emulsifier were screened for the preparation of Chuanxiong oil submicron emulsion. Then, the formula realizing the largest oil loading was selected. Finally, puerarin substituted part of emulsifier and co-emulsifier to lower their content, so as to form puerarin-Chuanxiong oil submicron emulsion featuring the combination of medicine and adjuvant. Its particle size, zeta potential, centrifugal stability and storage stability were determined, and the in vitro drug release behavior was investigated by dialysis bag method, based on which the quality of the as-prepared submicron emulsion was evaluated comprehensively. The proposed method was proved feasible for the preparation of Chuanxiong oil submicron emulsion, which adopted polyoxyethylene castor oil(EL-40) as the emulsifier and was free from co-emulsifier. The formula of the maximum oil loading was found as Chuanxiong oil∶EL-40∶water 3∶7∶90. Further, puera-rin successfully replaced up to 10% of the emulsifier in submicron emulsion. Eventually, the optimal drug-loading formula was determined as puerarin∶Chuanxiong oil∶EL-40∶water 7∶30∶63∶900. The quality evaluation results of the as-prepared submicron emulsion demonstrated that the average emulsion droplet size was 333.9 nm, the PDI 0.26, and the zeta potential-10.12 mV. The submicron emulsion had a good centrifugal stability and did not present any instable phenomena such as delamination and precipitation during its standing still for 50 days. The evaluation of in vitro drug release behavior indicated that the submicron emulsion was capable of releasing the drug completely. The puerarin-chuanxiong oil submicron emulsion prepared in this study possessed a stable quality and to some extent increased the solubility of puerarin along with a sustained-release effect. This study provided ideas for the clinical application of puerarin.


Subject(s)
Emulsions , Isoflavones , Particle Size , Solubility
20.
Article in Chinese | WPRIM | ID: wpr-888139

ABSTRACT

This study aims to explore the pharmacodynamic differences of Puerariae Lobatae Radix(PLR), Puerariae Thomsonii Radix(PTR) and their different processed products and the influences of these medical materials on the diversity of intestinal flora. The Sennae Folium-induced diarrhea model, streptozotocin(STZ)-induced diabetes model and L-nitro-arginine methyl ester(L-NAME)-induced hypertension model were used to compare the pharmacodynamic differences in anti-diarrhea, blood glucose reduction and blood pressure lowering among raw, roasted and vinegar-processed PLR and PTR. The effects of raw and processed PLR and PTR on intestinal flora diversity of rats were evaluated by 16 S rDNA high-throughput sequencing. The roasted PLR and PTR performed better in anti-diarrhea, especially the former. PLR and its processed products all presented the efficacy of reducing blood glucose, and the vinegar-processed PLR was the most outstanding. The raw PTR was not that effective in reducing blood glucose, whereas its efficacy was improved after roasting and vinegar processing. Both PLR and PTR were capable of lowering blood pressure to a certain extent, and PLR is superior to PTR in this aspect. Further, the vinegar-processed PLR showed the best effect. The diversity of intestinal flora was different among rats to which different products of PLR and PTR were administered. The roasted PLR led to the highest abundance of Lactobacillus, which was closely related to its best antidiarrheal effect. The highest abilities of vinegar-processed PLR to lower blood glucose and blood pressure were associated with the high abundance of Blautia and Prevotella_9. This study lays a foundation for elucidating the processing mechanisms of PLR and PTR and provides a basis for their further development and application.


Subject(s)
Animals , Drugs, Chinese Herbal , Gastrointestinal Microbiome , Plant Roots , Pueraria , Rats
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