Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 202
Filter
1.
Biomedical and Environmental Sciences ; (12): 50-59, 2023.
Article in English | WPRIM | ID: wpr-970290

ABSTRACT

OBJECTIVE@#Exposure to high intensity, low frequency noise (HI-LFN) causes vibroacoustic disease (VAD), with memory deficit as a primary non-auditory symptomatic effect of VAD. However, the underlying mechanism of the memory deficit is unknown. This study aimed to characterize potential mechanisms involving morphological changes of neurons and nerve fibers in the hippocampus, after exposure to HI-LFN.@*METHODS@#Adult wild-type and transient receptor potential vanilloid subtype 4 knockout (TRPV4-/-) mice were used for construction of the HI-LFN injury model. The new object recognition task and the Morris water maze test were used to measure the memory of these animals. Hemoxylin and eosin and immunofluorescence staining were used to examine morphological changes of the hippocampus after exposure to HI-LFN.@*RESULTS@#The expression of TRPV4 was significantly upregulated in the hippocampus after HI-LFN exposure. Furthermore, memory deficits correlated with lower densities of neurons and neurofilament-positive nerve fibers in the cornu ammonis 1 (CA1) and dentate gyrus (DG) hippocampal areas in wild-type mice. However, TRPV4-/- mice showed better performance in memory tests and more integrated neurofilament-positive nerve fibers in the CA1 and DG areas after HI-LFN exposure.@*CONCLUSION@#TRPV4 up-regulation induced neurofilament positive nerve fiber injury in the hippocampus, which was a possible mechanism for memory impairment and cognitive decline resulting from HI-LFN exposure. Together, these results identified a promising therapeutic target for treating cognitive dysfunction in VAD patients.


Subject(s)
Animals , Mice , TRPV Cation Channels/metabolism , Intermediate Filaments/metabolism , Hippocampus/metabolism , Neurons/metabolism , Memory Disorders/metabolism
2.
Frontiers of Medicine ; (4): 458-475, 2023.
Article in English | WPRIM | ID: wpr-982576

ABSTRACT

The Ly-6 and uPAR (LU) domain-containing proteins represent a large family of cell-surface markers. In particular, mouse Ly-6A/Sca-1 is a widely used marker for various stem cells; however, its human ortholog is missing. In this study, based on a systematic survey and comparative genomic study of mouse and human LU domain-containing proteins, we identified a previously unannotated human gene encoding the candidate ortholog of mouse Ly-6A/Sca-1. This gene, hereby named LY6A, reversely overlaps with a lncRNA gene in the majority of exonic sequences. We found that LY6A is aberrantly expressed in pituitary tumors, but not in normal pituitary tissues, and may contribute to tumorigenesis. Similar to mouse Ly-6A/Sca-1, human LY6A is also upregulated by interferon, suggesting a conserved transcriptional regulatory mechanism between humans and mice. We cloned the full-length LY6A cDNA, whose encoded protein sequence, domain architecture, and exon-intron structures are all well conserved with mouse Ly-6A/Sca-1. Ectopic expression of the LY6A protein in cells demonstrates that it acts the same as mouse Ly-6A/Sca-1 in their processing and glycosylphosphatidylinositol anchoring to the cell membrane. Collectively, these studies unveil a novel human gene encoding a candidate biomarker and provide an interesting model gene for studying gene regulatory and evolutionary mechanisms.


Subject(s)
Humans , Membrane Proteins/genetics , Pituitary Neoplasms/genetics , Biomarkers
3.
Chinese Journal of Endemiology ; (12): 169-172, 2023.
Article in Chinese | WPRIM | ID: wpr-991599

ABSTRACT

Due to the cloud-like appearance of the dental surface of dental fluorosis, serious tooth defect may occur, thus affecting the overall beauty of the face. The clinical effect of dental fluorosis is not better than that of normal teeth in the application of repair, which brings some difficulties to the clinicians. The application of porcelain veneers in the restoration of dental fluorosis has been widely concerned by clinicians and researchers due to its advantages of high aesthetics, small amount of tooth tissue abrasion, and good biocompatibility. Therefore, this article comprehensively discusses the application effect and influencing factors of porcelain veneers in the restoration of dental fluorosis, in order to provide some reference for clinical application.

4.
Journal of Modern Urology ; (12): 566-572, 2023.
Article in Chinese | WPRIM | ID: wpr-1006023

ABSTRACT

【Objective】 To investigate the penile appearance, sexual function, psychological status and related influencing factors of adult patients who underwent hypospadias repair surgery in their minors, so as to provide reference for the diagnosis, treatment and prognosis of hypospadias. 【Methods】 This study included 50 adult hypospadias patients who underwent urethroplasty in our hospital during May 2005 and Aug. 2018. The present appearance, sexual function and psychological status were evaluated. The correlation and consistency between hypospadias objective scoring evaluation (HOSE) and pediatric penile perception score (PPPS) were analyzed. Factors affecting the results were determined with univariate and multivariate regression analysis. 【Results】 The satisfaction rate of HOSE was significantly correlated with the urethral length and complications (P=0.024, P=0.033). The satisfaction rate of PPPS was significantly correlated with the number of urethral operations and postoperative complications (P=0.041, P=0.023). There was a weak correlation between HOSE and PPPS (r=0.291, P=0.040), but almost no consistency (Kappa=0.2, P=0.107). Sixty percent of the patients paid attention to the ventral appearance of penis, whose dissatisfaction rate of PPPS was higher than those who did not pay attention to the ventral appearance of the penis (19/30 vs. 6/20, P=0.021). Patients with multiple operations (>1), postoperative complications or unsatisfactory penile appearance were more likely to have inferiority complex (52.6% vs. 22.6%, P=0.029; 59.1% vs.14.3%, P=0.001;61.5% vs. 24.3%, P=0.015). Multivariate regression analysis showed that dissatisfaction with the appearance of the penis was an independent risk factor for patients’ perception of their own physical defects. Among the patients who believed that they had physical defects, the percentage of patients with grade IV penile erectile hardness was significantly lower than that of those who denied they had physical defects (9/17 vs. 27/33, P=0.047). 【Conclusion】 The undesirable postoperative penis appearance is likely to have a negative impact on patients’ long-term psychological state, which might further damage the sexual function in adulthood. Surgeons should pay attention to the penile appearance during the conduction of hypospadias repair.

5.
Acta Pharmaceutica Sinica ; (12): 2532-2540, 2023.
Article in Chinese | WPRIM | ID: wpr-999141

ABSTRACT

There are many multi-original medicinal materials in Chinese Pharmacopoeia, and the mixed use of medicinal materials from different sources is common, which has certain influence on the stability of clinical medication. In this study, pyrosequencing technology was used to screen species-specific single nucleotide polymorphisms (SNP) from commonly used DNA barcode sequences, and a rapid and accurate molecular identification method for original species in mixed medicinal powder of Epimedii Folium was established. Multiple sequence alignment analysis showed that the 176th (C/T) mutation and the 196th (A/G) mutation of ITS, the 123rd (C/G) mutation of matK and the 892nd (A/C) mutation of rbcL could be used as the unique SNPs of E. sagittatum, E. koreanum, E. brevicornu and E. pubescens, respectively. In this study, the applicability of pyrosequencing and Sanger sequencing methods in the sequencing of mixture samples was investigated from the perspective of sensitivity and stability. Pyrosequencing method has higher detection sensitivity than Sanger sequencing method for low content samples in the mixed samples. Stability analysis showed that pyrosequencing technology could still obtain effective sequencing results for the amplified products of template DNA after 45 min of 95 ℃ high temperature water bath, while the critical point of Sanger sequencing method was 30 min. In this study, a new identification technology of Epimedii Folium mixed powder primordial species based on pyrosequencing and specific SNP was developed, which can quickly and accurately identify the mixed use of Epimedii Folium with high sensitivity and stability, and can also support the identification of different primordial species and mixed powder primordial herbs, which is conducive to ensuring the consistency and stability of clinical medication.

6.
Chinese Journal of Internal Medicine ; (12): 1059-1067, 2023.
Article in Chinese | WPRIM | ID: wpr-994422

ABSTRACT

Sj?gren′s syndrome (SS) is a chronic systemic autoimmune disease characterized by lymphocyte proliferation and progressive exocrine gland damage. In addition to the impairment of salivary and lacrimal gland function, SS can present with multi-system and multi-organ involvement, accompanied by autoantibodies in serum and hyperimmunoglobulinemia. SS can be divided into primary and secondary forms based on the absence or presence, respectively, of concurrent connective tissue diseases such as systemic lupus erythematosus and rheumatoid arthritis. Based on evidence and guidelines from China and other countries, the Chinese Rheumatology Association drafted standardized criteria for the diagnosis and treatment of primary SS. The objectives were to standardize the detection and interpretation of key indicators for the diagnosis of SS, including serum anti-SSA antibody and labial gland pathology, suggest the use of the widely accepted European League Against Rheumatism (EULAR)-SS disease activity index for the evaluation of the disease, and standardize the rational management of SS patients with topical and systemic therapies.

7.
Chinese Journal of Contemporary Pediatrics ; (12): 266-272, 2022.
Article in English | WPRIM | ID: wpr-928598

ABSTRACT

OBJECTIVES@#To study the molecular epidemiological characteristics of the virus in children with acute viral diarrhea in Changdu of Tibet, China.@*METHODS@#Fecal specimens were collected from 96 children with acute diarrhea who visited the People's Hospital of Changdu, Tibet, from November 2018 to November 2020 and were tested for adenovirus, norovirus, astrovirus, sapovirus, and rotavirus. Gene sequencing was performed for the genotypes of these viruses.@*RESULTS@#The overall positive rate of the five viruses was 39% (37/96), among which astrovirus had the highest positive rate of 17%, followed by norovirus (9%), rotavirus (8%), adenovirus (7%), and sapovirus (5%). There was no significant difference in the positive rate of the five viruses among different age groups (P>0.05). Only the positive rate of astrovirus was significantly different among the four seasons (P<0.05). For adenovirus, 6 children had F41 type and 1 had C2 type; for norovirus, 6 had GⅠ.3 type, 1 had GⅠ.7 type, 1 had GⅡ.3 type, and 2 had GⅡ.4 Sydney_2012 type; HAstrV-1 type was observed in all children with astrovirus infection; for sapovirus, 1 child each had sporadic GⅠ.2, GⅠ.6, and GⅡ.1 sapovirus and 2 children had unknown type; 6 children had rotavirus G9[P8].@*CONCLUSIONS@#Astrovirus and norovirus are important pathogens in children with acute diarrhea in Changdu, Tibet. The positive rate of adenovirus, norovirus, astrovirus, sapovirus, and rotavirus is not associated with age, and only the positive rate of astrovirus has obvious seasonality. F41 type is the dominant genotype of adenovirus; GⅠ.3 is the dominant genotype of norovirus; HAstrV-1 is the dominant genotype of astrovirus; sporadic GⅠ.2, GⅠ.6, and GⅡ.1 are the dominant genotypes of sapovirus; G9[P8] is the dominant genotype of rotavirus.


Subject(s)
Child , Humans , China , Diarrhea/epidemiology , Feces , Gastroenteritis , Tibet/epidemiology , Viruses/genetics
8.
China Journal of Chinese Materia Medica ; (24): 2392-2399, 2022.
Article in Chinese | WPRIM | ID: wpr-928118

ABSTRACT

With the rise of incidence, fatality rate, and number of young cases, diabetes mellitus has been one of the seven major diseases threatening human health. Although many antidiabetic drugs(oral or for injection) are available, the majority have serious side effects during the long-term use. Thus, it is of particularly vital to develop new drugs with low risk and definite effect. Psoraleae Fructus, a traditional medicinal widely used in the folk, has hypoglycemic, anti-osteoporosis, antitumor, estrogen-like, and anti-inflammatory effects. Thus, it has great clinical application potential. Chinese medicine and the active ingredients, characterized by multiple targets, multiple pathways, and multiple effects in the treatment of diabetes mellitus, have distinct advantages in clinical application. However, the safety of Chinese medicine remains to be a challenge, and one of keys is to clarifying the mechanism of a single Chinese medicinal and its active ingredients. With the method of literature research, this study summarized and analyzed the hypoglycemic mechanisms of Psoraleae Fructus and its main active ingredients over the last decade: regulating glucose metabolism, improving insulin resistance, and directly acting on pancreatic β-cells. The result is expected to serve as a reference for further research on the effects of Psoraleae Fructus and its main chemical constituents in lowering blood glucose and preventing diabetes mellitus and the clinical application.


Subject(s)
Humans , Drugs, Chinese Herbal/pharmacology , Fruit/chemistry , Hypoglycemic Agents/pharmacology , Osteoporosis/drug therapy , Psoralea/chemistry
9.
Chinese Journal of Organ Transplantation ; (12): 95-101, 2022.
Article in Chinese | WPRIM | ID: wpr-933668

ABSTRACT

Objective:To develop an ex vivo normothermic mechanical perfusion(NMP)and compare the effect of air-oxygenated NMP versus oxygen-oxygenated NMP on reducing renal injury from donor after cardiac death(DCD).Methods:All kidneys from DCD rats were subjected to 30 min in situ warm ischemia after cardiac attest.And harvested kidneys were stored for 8h under static cold preservation after NMP for 2h.In experimental groups, kidneys were subjected to either air-oxygenated NMP(group A, n=6)or oxygen-oxygenated NMP(group O, n=6). Sham operation(group C, n=6)and DCD kidneys under static cold preservation without NMP(group SCS, n=6)were employed as controls.The evaluation parameters included creatinine(Cr), aspartate amino transferase(AST)and lactate dehydrogenase(LDH)in perfusate, pathological changes by hematoxylin-eosin(HE)staining, histological criteria, expressions of myeloperoxidase and intercellular adhesion molecular-1(ICAM-1)by immunohistochemistry and Western blot, tumor necrosis factor-alpha(TNF-α)and interleukin-6(IL-6)by enzyme-linked immunoadsorbent assay and level of malondialdehyde(MDA)by thiobarbital method and activity of superoxide dismutase(SOD)by WST-8 in renal tissues.Differences between two groups were analyzed by two-tailed unpaired Student's test and differences among more than two groups by one-way ANOVA.Results:Renal arterial oxygen tensions in NMP perfusate were(576.3±68.2)mmHg with oxygen-oxygenation and(137.0±39.1)mmHg with air-oxygenation.There was significant difference( P<0.05). The pathological injury scores in groups SCS, O and A by HE staining were(7.0±0.1), (5.0±0.9)and(2.5±0.5); injury scores and the expressions of renal proximal tubular epithelial cell vacuolar degeneration in groups O and A were lower than those in group SCS( P<0.05)and injury score in group A was lower than group O( P<0.05). In perfusate, the levels of △Cr, △AST and △LDH in groups O and A were(43.9±52.8)μmol/L and(12.6±3.5)μmol/L, (532.3±52.8)U/L and(49.1±50.4)U/L and(9998.0±2014.4)U/L and(1477.0±810.4)U/L.There were significant differences( P<0.05). In perfused kidneys, the MDA level and SOD activity in groups O and A were(0.192±0.018)mmol/g, (0.162±0.023)mmol/g, (0.6±0.3)×10 3 U/g, (1.7±0.4)×10 3 U/g; TNF-α and IL-6 levels in groups O and A were(124.376±19.635)and(89.331±13.123)ng/g, and(4.038±1.026)×10 3 and(1.774±0.518)×10 3 ng/g.After air-oxygenated NMP, lower renal damage indices were characterized by a lower MDA level and a higher SOD activity, the lower levels of TNF-α and IL-6 and the lower expressions of MPO and ICAM-1 than those in oxygen-oxygenated NMP( P<0.05). Conclusions:NMP with air-oxygenation mimics renal perfusion under physiological conditions and decreases oxidative stress and inflammation injury.It may confer a better retrieval in DCD kidney against warm ischemia injury.

10.
Chinese Journal of School Health ; (12): 548-552, 2022.
Article in Chinese | WPRIM | ID: wpr-924100

ABSTRACT

Objective@#To explore the effect of group cognitive behavioral therapy (GCBT) on cognitive control among college students with high obsessive compulsive traits, to provide basic information for the psychological counseling intervention for college students.@*Methods@#From March to April 2019, 687 students were conveniently selected from 2 universities in Hefei. According to the inclusion and exclusion criteria, 58 students with high obsessive traits were selected and divided into experimental group ( n =29) and control group ( n =29) by random number table method. The experimental group received cognitive behavioral group counseling for 4 weeks (1.5 h each time, twice a week), while the control group receive no intervention. The Obsessive Compulsive Inventory Revised (OCI-R), Stroop Color Word Test (SCWT), Digital Span Test (DST), and Wisconsin Card Sorting Test (WSCT) were used to assess in two groups at baseline and 4 weeks later.@*Results@#After 4 weeks, the scores of OCI-R in the GCBT group (10.28±7.22) was lower than that of in the control group (15.90±10.20) ( t=2.42, P<0.05). Before and after intervention, compared with the control group [(21.89±6.63, 20.52±7.37)s, (8.62±4.43, 8.04±4.84)s] in Stroop C and Stroop interfere effects (SIE), the GCBT group [(22.14±4.92, 16.81±3.43)s, (8.36±3.87, 4.82±1.86)s], the interaction of time group was statistically significant ( F =14.60, 10.54, P <0.05). Compared with the control group (6.21±1.35, 6.55±1.45)times, the scores of DST reverse in the GCBT group (6.31±1.44, 7.24±1.38) times were statistically significant ( F=3.96, P <0.05).@*Conclusion@#It suggests that cognitive behavioral group counseling can improve the inhibitory control and working memory of college students with high obsessive compulsive traits, but does not change the cognitive flexibility.

11.
Frontiers of Medicine ; (4): 783-804, 2021.
Article in English | WPRIM | ID: wpr-922520

ABSTRACT

The current standard of care in hematological malignancies has brought considerable clinical benefits to patients. However, important bottlenecks still limit optimal achievements following a current medical practice. The genetic complexity of the diseases and the heterogeneity of tumor clones cause difficulty in ensuring long-term efficacy of conventional treatments for most hematological disorders. Consequently, new treatment strategies are necessary to improve clinical outcomes. Chimeric antigen receptor T-cell (CAR T) immunotherapy opens a new path for targeted therapy of hematological malignancies. In this review, through a representative case study, we summarize the current experience of CAR T-cell therapy, the management of common side effects, the causative mechanisms of therapy resistance, and new strategies to improve the efficacy of CAR T-cell therapy.


Subject(s)
Humans , Hematologic Neoplasms/therapy , Immunotherapy/adverse effects , Neoplasms , Receptors, Chimeric Antigen , T-Lymphocytes
12.
Journal of Experimental Hematology ; (6): 1561-1565, 2021.
Article in Chinese | WPRIM | ID: wpr-922295

ABSTRACT

OBJECTIVE@#To perform dried blood spots thalassemia gene detection in patients with positive blood phenotypes by microarray technology, and evaluate its value in clinical detection.@*METHODS@#DNA samples were extracted from dried blood spots of 410 patients. Microarray technology was used to detect 3 deletion and 3 non-deletion types of α-thalassemia and 19 β-thalassemia point mutations which were common gene mutions in China.@*RESULTS@#There were 357 positive cases in all the 410 tested samples with the positive rate 87.07%, among which 299 cases (72.93%) carried deletion or point mutations of α-thalassemia, 29 cases (7.07%) carried point mutations of β-thalassemia and 29 cases (7.07%) carried gene mutations of complex αβ-thalassemia syndrome. The mutations of α-thalassemia were involved with --@*CONCLUSION@#The most common genetic mutations are --


Subject(s)
Humans , China , Mutation , Oligonucleotide Array Sequence Analysis , alpha-Thalassemia/genetics , beta-Thalassemia/genetics
13.
Journal of Experimental Hematology ; (6): 1907-1910, 2021.
Article in Chinese | WPRIM | ID: wpr-922222

ABSTRACT

OBJECTIVE@#To proceed the clinical evaluation of DNA microarray for thalassemia gene detection.@*METHODS@#Peripheral blood samples of 166 thalassemia gene test subjects were collected and tested for thalassemia genes by microarray chip method and Gap-PCR method combined with PCR-reverse dot blot hybridization method according to double-blind control test. The specificity, sensitivity, positive predictive value, negative predictive value, and total coincidence rate of the microarray chip method were evaluated. When the two methods were inconsistent, multiplex ligation dependent probe amplification (MLPA) was used to verify the deletional α-thalassemia.@*RESULTS@#Compared with Gap-PCR method, specificity, sensitivity, positive predictive value, negative predictive value, Youden index, and total coincidence rate of microarray chip method was 100% (70/70), 96.88% (93/96), 100% (93/93), 95.89% (70/73), 0.969, and 97.59% (162/166), respectively, while compared with PCR-reverse dot blot hybridization method was 100% (125/125), 100% (41/41), 100% (41/41), 100% (125/125), 1, and 100% (166/166), respectively.@*CONCLUSION@#The microarray chip method for α-thalassemia gene detection shows the advantages of high specificity, sensitivity, and throughput.


Subject(s)
Humans , Genetic Testing , Multiplex Polymerase Chain Reaction , Oligonucleotide Array Sequence Analysis , alpha-Thalassemia/genetics
14.
China Journal of Chinese Materia Medica ; (24): 5044-5051, 2021.
Article in Chinese | WPRIM | ID: wpr-921643

ABSTRACT

Chronic unpredicted mild stress(CUMS) combined with isolated feeding was used to induce depressed rat model. The anti-depressant effects of Zhizichi Decoction(ZZCD) and its solid fermented product(ZZC) were analyzed by behavioral test and comparison of pathological tissues of hippocampus and liver, metabolic characteristics of intestinal flora, and relative abundance of species. The results showed that ZZC could increase sucrose preference, shorten the immobility time in the forced swim test and tail suspension test(P<0.05), and repair damaged hippocampus and liver tissues, and the effect was superior to that of ZZCD. The results of Biolog ECO plates showed that the average well color development(AWCD) of intestinal flora in the model group significantly decreased and the metabolic levels of sugar and amino acids were reduced, while the AWCD of the treatment groups increased. The metabolic levels of the two carbon sources were improved in the ZZC group, while only sugar metabolic level was elevated in the ZZCD group. Metagenomic analysis of intestinal flora showed that the ratio of Firmicutes/Bacteroidetes was 3.87 in the control group, 21.77 in the model group, 5.91 in the ZZC group, and 18.48 in the ZZCD group. Lactobacillus increased by 3.28 times, and Prevotella and Bacteroidetes decreased by 75.59% and 76.39%, respectively in the model group as compared with that in the control group. Lactobacillus decreased by 31.13%, and Prevotella and Bacteroidetes increased by more than three times in the ZZC group as compared with that in the model group, while the corresponding changes in the ZZCD group were not significant. ZZC could improve depression-like beha-viors by regulating the structure of intestinal flora and metabolic functions and repairing damaged hippocampus and liver tissues in depressed rats, showing an anti-depressant effect superior to that of ZZCD. This study is expected to provide a basis for the development of new anti-depressant food products.


Subject(s)
Animals , Rats , Depression/drug therapy , Disease Models, Animal , Fermentation , Gastrointestinal Microbiome , Hippocampus , Stress, Psychological
15.
Acta Academiae Medicinae Sinicae ; (6): 879-885, 2021.
Article in Chinese | WPRIM | ID: wpr-921554

ABSTRACT

Objective To study the correlation of B-type natriuretic peptide(BNP)level with hemodynamic parameters and inflammatory cytokines in patients with Gram-negative sepsis,and further determine the main factors for the significant increase of BNP level. Methods The prospective study method was applied,and septic patients infected with Gram-negative bacteria from May 2017 to October 2019 were enrolled.The patients were divided into the BNP<2400 ng/L group and the BNP≥2400 ng/L group by taking the average value of BNP as the dividing point.The independent predictors of BNP≥2400 ng/L were analyzed by Logistic regression.Pearson correlation analysis was used to analyze the correlation between BNP and various indicators. Results A total of 106 patients with Gram-negative sepsis were included,among which 60 cases present with higher serum BNP levels than the average of(2398.45 ± 421.45)ng/L.Thus BNP≥2400 ng/L was considered as a significantly increased BNP level.Multiple logistic regression analysis showed that cardiac index(CI)[odds ratio (


Subject(s)
Humans , Cytokines , Gram-Negative Bacterial Infections , Hemodynamics , Natriuretic Peptide, Brain , Prognosis , Prospective Studies , Sepsis , Stroke Volume , Ventricular Function, Left
16.
China Journal of Chinese Materia Medica ; (24): 1564-1573, 2021.
Article in Chinese | WPRIM | ID: wpr-879062

ABSTRACT

Sichuan province is very famous for its abundant resources of traditional Chinese medicine(TCM).However, within the scope of administrative division of Sichuan province, the origin records of Dao-di herbs in different historical periods show a dynamic distribution process. On the basis of carefully sorting out the geographical scope of Sichuan province in different historical periods, this article focuses on the textual research of the Dao-di herbs in Sichuan province recorded in the seven mainstream ancient works of materia medica.The results showed that, according to the records of Mingyi bielu and Bencaojing Jizhu, the main distribution areas of Dao-di herbs were mainly in the central and eastern regions of Sichuan province, mainly including Moschus, Coptidis Rhizoma, Zingiberis Rhizoma, Aconiti Lateralis Radix Praeparata and most of the rest materia medica had become unused in the historical process. Qianjin Yifang records that the distribution areas of Dao-di herbs were mainly in the middle and eastern part of Sichuan province.Aconiti Radix, Lateralis Radix Praeparata, Zingiberis Rhizoma, Notopterygii Rhizoma et Radix are still the Dao-di herbs of Sichuan province. According to the book of Bencao Tujing,the main distribution areas of Dao-di herbs are Chengdu Plain, Yibin and Santai, While Toosendan Fructus, Chuanxiong Rhizoma, Zanthoxyli Pericarpium, Aconiti Radix are still the Dao-di herbs of Sichuan province. Ben Cao Gang Mu records the place of origin as Sichuan.Coptidis Rhizoma, Toosendan Fructus, Cyathulae Radix are still the Dao-di herbs of Sichuan pro-vince. Yaowu Chuchanbian and Zengding Weiyao Tiaobian records the place of origin as Sichuan, as well as Kangding, Songpan, Dujiang-yan, Jiangyou, Nanchong, Ya'an, etc. Moschus, Coptidis Rhizoma, Eucommiae Cortex, Phellodendri Chinensis Cortex are still the Dao-di herbs of Sichuan province. The results of this article provide a new understanding of the history and distribution changes of Dao-di herbs in Sichuan province, and can help to further understand the formation connotation of Sichuan Dao-di herbs.


Subject(s)
Aconitum , Drugs, Chinese Herbal , Materia Medica , Medicine, Chinese Traditional , Rhizome
17.
Chinese Journal of Medical Aesthetics and Cosmetology ; (6): 161-164, 2021.
Article in Chinese | WPRIM | ID: wpr-912650

ABSTRACT

Objective:To explore the possibility of constructing tissue-engineered cartilage three-dimensional nanoscaffolds with collagen Ⅱ (COLⅡ), hyaluronic acid (HA) and chondroitin sulfate (CS).Methods:The tissue-engineered cartilage scaffolds were prepared by electrospinning techniques with the mixture COLⅡ-HA-CS solvent, which dissolved by 3-trifluoroethanol-water. The surface topography was observed under electron microscope (SEM). And the diameter of nanofibers, the water absorption rate, contact angle and degradation rate were also detected. Generation 2 rabbit chondrocytes were seeded into the scaffold. The cell survival rate and proliferation were evaluated by Cell Counting Kit-8.Results:When the concentration range of electrospinning was 80-120 mg/ml and the mixing ratio of Col, HA and CS was 6-8∶1∶1-2, the tissue engineered cartilage nanoscaffolds could be successfully prepared. Their diameters were mainly distributed between 126.5±23.3 nm and 374.7±14.1 nm. The scaffolds had satisfactory hydrophilicity and degradability. The chondrocytes could well adhere and proliferate on the scaffold.Conclusions:The COLⅡ-HA-CS tissue-engineered cartilage nanoscaffolds have good physical and biological properties, which suggests its promising application in tissue-engineered cartilage.

18.
Chinese Journal of Applied Clinical Pediatrics ; (24): 1736-1741, 2021.
Article in Chinese | WPRIM | ID: wpr-908047

ABSTRACT

Objective:To detect serum levels of vitamin A (Vit A), vitamin D(Vit D)25-hydroxy vitamin D[25-(OH)D] and vitamin E(Vit E) in children aged 0-6 years in Tibetan Plateau of Garzi Prefecture, thus providing references for physical examinations and prevention of 4 key diseases (rickets, malnutrition anemia, pneumonia and diarrhea) in children in plateau areas by relevant government departments.Methods:A total of 2 122 children who participated in physical examination in 12 townships of Xiangcheng County and 14 townships of Daocheng County, Garzi Tibetan Autonomous Prefecture, Sichuan Province from April 2017 to April 2019 with 0-6 years old were recruited for surveying physical measurements and collection of venous blood.Serum Vit A and Vit E levels were detected by high performance liquid chromatography.Serum levels of 25-(OH)D were detected by high performance liquid chromatography tandem mass spectrometry.The relationship between Vit A, Vit E and 25-(OH)D levels with the gender, age, seasonal change and altitude was analyzed.Results:The serum Vit A level, subclinical Vit A deficiency rate and marginal vitamin A deficiency rate were(1.05±0.27) μmol/L, 8.15%(173/2 122 cases) and 45.99%(976/2 122 cases), respectively in 2 122 children with 0-6 years old.There were significant differences in the serum Vit A level, the subclinical Vit A deficiency rate and the marginal vitamin A deficiency rate in children with different ages, seasons and altitudes (all P<0.05). The serum level of 25-(OH)D and 25-(OH)D deficiency rate insufficient rate were (24.65±6.45) ng/L, 6.03%(128/2 122 cases) and 16.59%(352/2 122 cases), respectively.There were significant differences in the serum level of 25-(OH)D, 25-(OH)D deficiency rate and 25-(OH)D insufficient rate in children with different ages and seasons (all P<0.05). The mean serum Vit E level, Vit E deficiency rate and Vit E insufficient rate were (7.81±1.74) mg/L, 2.78%(59/2 122 cases) and 29.59%(628/2 122 cases), respectively.There were significant differences in serum Vit E level, Vit E deficiency rate and Vit E insufficient rate in children with different ages and seasons (all P<0.05). The mean serum levels of Vit A and Vit D remained the lowest before the age of 1 year, and their deficiencies at this age were the most significant.The mean serum level of Vit E remained the lowest in >1-2 years old, and its deficiency and insufficient at this age were the most significant.Vit A, D and E levels were significantly affected by seasonal changes, which were significantly higher in the summer than in the spring, autumn and winter.In addition, Vit A and 25-(OH)D were significantly affected by the altitude, which were the lowest above 4 km altitude. Conclusions:The overall serum levels of Vit A, 25-(OH) D and E in children with 0-6 years old in Tibetan Plateau areas of Ganzi Prefecture are lower than those in plain areas.Vit A, 25-(OH) D and Vit E levels significantly differed in the age, season and altitude, which are related to the lack of local resources, insufficient maternal nutrition during pregnancy and insufficient intake after birth, as well as temperature and light caused by changes in local seasons and altitude.Therefore, it is necessary to make reasonable supplements during pregnancy to prevent vitamin deficiency.

19.
International Journal of Traditional Chinese Medicine ; (6): 880-886, 2021.
Article in Chinese | WPRIM | ID: wpr-907647

ABSTRACT

Objective:To observe the effect of Yunpi-Xiefei-Huatan Decoction on airway mucus hypersecretion of asthmatic rats and its regulation on epidermal growth factor receptor (EGFR) / mucin 5AC (MUC5AC) signal pathway. Methods:Seventy SD rats were randomly divided into normal group, model group, high dose group, medium dose group, low dose group, western medicine group and combined group, with 10 rats in each group. Except the normal group, the other groups were sensitized with 1 ml ovalbumin and aluminum hydroxide mixture to establish the asthma rat model. On the 16th day of the experiment, the high, medium and low dose groups were given Yunpi-Xiefei-Huatan Decoction of 40, 20, 10 g/kg, respectively, the western medicine group was given carboxymethylstein tablets of 150 mg/kg, and the combined group was given Yunpi-Xiefei-Huatan Decoction of 20 g/kg and carboxymethylstein tablets of 150 mg/kg, once a day, for 4 weeks. The levels of tumor necrosis factor (TNF-α) and interleukin-13 (IL-13) in serum of rats were detected by Enzyme-linked Immunosorbent Assay (ELISA), the total number and classification of leukocytes in BALF were observed by Wright Giemsa staining, the pathological changes of lung tissue were observed by glycogen staining (PAS). The protein expression of epidermal growth factor receptor (EGFR) and MUC5AC (MUC5AC) were detected by Western blotting, and the mRNA expression of EGFR and MUC5AC was detected by Reverse Transcriptase Polymerase Chain Reaction (RT-PCR). Results:Compared with the model group, the level of IL-13 and TNF-α in the high, medium and low dose groups of traditional Chinese medicine, western medicine group and combined group was significantly decreased ( P<0.05). The levels of WBC, eosinophils and neutrophils in rat alveolar lavage fluid were significantly decreased ( P<0.05). The expression of EGFR (0.466 ± 0.023, 0.354 ± 0.047, 0.667 ± 0.066, 0.553 ± 0.065, 0.290 ± 0.033 vs. 0.782 ± 0.047) and MUC5AC (0.424 ± 0.022, 0.313 ± 0.033, 0.603 ± 0.051, 0.495 ± 0.041, 0.243 ± 0.024 vs. 0.806 ± 0.090) significantly decreased ( P<0.05), the m RNA expression of EGFR (2.302 ± 0.321, 2.549 ± 0.623, 3.084 ± 0.453, 2.585 ± 0.314, 1.810 ± 0.379 vs. 4.101 ± 0.567), MUC5AC (3.243 ± 0.742, 3.283 ± 1.064, 4.419 ± 0.572, 3.817 ± 0.637, 2.469 ± 0.424 vs. 5.840 ± 0.661) in the high, medium and low dose groups, western medicine group and combined group was significantly decreased ( P<0.05). Conclusion:Yunpi-Xiefei-Huatan Decoction ccould inhibit asthma, and its mechanism mightbe related to the EGFR/MUC5AC signaling pathway.

20.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 131-137, 2021.
Article in Chinese | WPRIM | ID: wpr-905905

ABSTRACT

Objective:According to the GB/T 15000.3-2008, to develop a fucosterol certified reference material based on the project approved by Standardization Administration. Method:Fucosterol was isolated from <italic>Laminaria japonica</italic> dried thallus via 95% ethanol extraction, vacuum concentration, repeated column chromatography separation, recrystallization in petroleum ether-ethyl acetate, and residual solvent removal. Its chemical structure was identified by elemental analysis (EA), infrared spectrum (IR), mass spectrometry (MS), nuclear magnetic resonance (NMR) and X-ray diffraction (XRD). Its homogeneity, stability, and cooperative certification conducted by 8 laboratories were carried out by high performance liquid chromatography with evaporative light scattering detector. Result:For the fucosterol reference material, the certified value of purity was 99.54% with expanded uncertainty of 0.16% in confidence interval of 95%, the stability was good within 24 months storage period at 2-4 ℃, which met the technical requirements of reference material and passed the acceptance organized by Standardization Administration. Conclusion:The national standard materials of fucosterol has been successfully developed, which can be used for the determination of this component, the evaluation of detection methods, and the detection and quality control of related products.

SELECTION OF CITATIONS
SEARCH DETAIL