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OBJECTIVE To investigate the improve-ment functions of flavonoid compounds on temozolomide(TMZ)-,aging-or AD model-induced dysregulation of hip-pocampal NSC lineage progression,retardancy of den-dritic spine maturation in new-born neurons,as well as impairment of hippocampal-related learning and memory.METHODS We applied 30-week-old neural stem cell(NSC)specific promoter Nestin-GFP and NestinCreERT2:Rosa26-LSL-tdTomato transgenic mice and 16-week-old AD model 5XFAD transgenic mice,together with hippo-campal microinjection(ih),endogenous fluorescence trac-ing and immunofluorescent staining.RESULTS Both fla-vonoid compound A and its functional derivative flavo-noid compound B dose-dependently improved TMZ-,aging-or AD-induced defects of hippocampal NSC lin-eage progression and the maturation of dendritic spines of newborn neurons,thereby improving hippocampus related learning and memory.CONCLUSION This paper provides a new idea and treatment strategy for the devel-opment of new flavonoids that can promote neurogene-sis for neurodegenerative diseases and aging.
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Cognitive impairment caused by chronic cerebral hypoperfusion (CCH) is associated with white matter injury (WMI), possibly through the alteration of autophagy. Here, the autophagy-lysosomal pathway (ALP) dysfunction in white matter (WM) and its relationship with cognitive impairment were investigated in rats subjected to two vessel occlusion (2VO). The results showed that cognitive impairment occurred by the 28th day after 2VO. Injury and autophagy activation of mature oligodendrocytes and neuronal axons sequentially occurred in WM by the 3rd day. By the 14th day, abnormal accumulation of autophagy substrate, lysosomal dysfunction, and the activation of mechanistic target of rapamycin (MTOR) pathway were observed in WM, paralleled with mature oligodendrocyte death. This indicates autophagy activation was followed by ALP dysfunction caused by autophagy inhibition or lysosomal dysfunction. To target the ALP dysfunction, enhanced autophagy by systemic rapamycin treatment or overexpression of Beclin1 (BECN1) in oligodendrocytes reduced mature oligodendrocyte death, and subsequently alleviated the WMI and cognitive impairment after CCH. These results reveal that early autophagy activation was followed by ALP dysfunction in WM after 2VO, which was associated with the aggravation of WMI and cognitive impairment. This study highlights that alleviating ALP dysfunction by enhancing oligodendrocyte autophagy has benefits for cognitive recovery after CCH.
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Objective:To evaluate the efficacy of long-pulsed 1 064-nm Nd:YAG laser combined with a topical emulsion containing Camellia reticulata and Radix Notoginseng in the treatment of melasma. Methods:A total of 80 patients with melasma were enrolled from Department of Dermatology, People′s Hospital of Ningxia Hui Autonomous Region from June 2019 to June 2020, and randomly and equally divided into control group and observation group by using a random number table: 40 patients in the control group were treated with long-pulsed 1 064-nm Nd:YAG laser once every 2 weeks for 6 sessions as a course of treatment; another 40 in the observation group were treated with the same laser therapy as the control group and a topical emulsion containing Camellia reticulata and Radix Notoginseng twice a day for 3 months as a course of treatment. Melasma area and severity index (MASI), clinical efficacy, patient satisfaction rate and safety were compared between the 2 groups before and/or after treatment. Results:After 4- and 8-week treatment, there was no significant difference in the MASI score between the observation group (14.57 ± 3.22 points, 10.00 ± 2.94 points, respectively) and control group (14.74 ± 3.11 points, 11.31 ± 3.00 points, respectively; both P>0.05). After 12-week treatment, the MASI score was significantly lower in the observation group (4.80 ± 2.78 points) than in the control group (7.07 ± 3.22 points, t = -3.38, P<0.01). After 3-month treatment, the response rate was significantly higher in the observation group (36 cases, 90%) than in the control group (31 cases, 77.5%; χ2 = 4.58, P < 0.001) ; however, there was no significant difference in the patient satisfaction rate between the observation group (87.5%) and control group (72.5%, χ2 = 7.26, P = 0.06). In addition, no significant difference in the occurrence of adverse reactions was observed between the observation group (5 cases, 12.5%) and control group (7 cases, 17.5%; P > 0.05) . Conclusion:Compared with the long-pulsed 1 064-nm Nd:YAG laser alone, the topical emulsion containing Camellia reticulata and Radix Notoginseng in combination with the long-pulsed 1 064-nm Nd:YAG laser is more effective for the treatment of melasma, with higher patient satisfaction and less adverse reactions.
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Objective:To determine whether the neutrophil-lymphocyte-ratio (NLR) a inflammatory factor can predict tumor response to neoadjuvant chemoradiotherapy (CRT) in locally advanced rectal cancer.Methods:Between 2014 and 2019, 205 locally advanced rectal cancer patients underwent CRT before curative surgery. After propensity score matching, 148 patients (74 matched pairs) were enrolled in this study. The hematological parameters were collected and their relationship with tumor response was investigated.Results:After propensity score matching, NLR before CRT in good response group were significantly lower than that in poor response group(2.2±1.0 vs. 2.4±1.2, Z=-2.465, P<0.05), while there was no significant difference in all hematological characteristics between two groups after CRT. The cutoff values of pre-CRT NLR was 3.88 after receiver operating characteristic analysis(AUC=0.618, 95% CI: 0.528-0.708). Multivariate analysis model indicated that pre-CRT NLR≥3.88 was the predictor of poor tumor response ( OR=5.826, 95% CI: 1.299-26.132, P<0.05). Conclusion:The increased NLR before CRT can be regarded as a hematological factor for poor tumor response in locally advanced rectal cancer.
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Objective:To investigate mechanisms underlying the signal crosstalk of VEGF-IL-6-STAT3 between cutaneous melanoma cells and vascular endothelial cells.Methods:EC-304 vascular endothelial cells were divided into 3 groups: control group cultured in conventional endothelial cell-conditioned medium, vascular endothelial growth factor (VEGF) group cultured in endothelial cell-conditioned medium containing 50 μg/L VEGF 165, A375 co-culture group co-cultured with a melanoma cell line A375. After 24-, 48- and 72-hour treatment, the culture medium was collected, and enzyme-linked immunosorbent assay was performed to detect the level of interleukin-6 (IL-6) . Cultured A375 cells were divided into 4 groups: control group receiving conventional culture in Dulbecco′s modified Eagle′s medium (DMEM) , A375+ EC-304 group co-cultured with EC-304 cells, A375+ EC-304+ IL-6 group co-cultured with EC-304 cells in DMEM containing 50 μg/L IL-6 (an agonist of the signal transducer and activator of transcription-3 [STAT3] pathway) , A375+ EC-304+ JSI-124 group co-cultured with EC-304 cells in DMEM containing 1 μmol/L JSI-124 (a STAT3 pathway inhibitor) . After 24-, 48- and 72-hour treatment, cells were collected, and Western blot analysis, cell counting kit-8 (CCK8) assay and Transwell invasion assay were performed to determine the protein expression of STAT3 and phosphorylated (p) -STAT3, cellular proliferative activity and invasive activity, respectively. Two-way analysis of variance and t test were used for statistical analysis. Results:The level of IL-6 significantly increased in the culture medium of EC-304 cells in the VEGF group and A375 co-culture group compared with the control group ( FVEGF = 29.63, P < 0.001; FA375 = 11.09, P = 0.020) . Compared with the control group, the A375+ EC-304 group showed significantly enhanced protein expression of p-STAT3 in A375 cells ( P < 0.001) , increased cell activity ( P < 0.001) , and increased number of invasive cells (152.66 ± 16.04 vs. 86.13 ± 7.24, t= 4.43, P < 0.001) ; compared with the A375+ EC-304 group, the A375+ EC-304+ IL-6 group showed significantly increased protein expression of p-STAT3 ( P < 0.001) , enhanced cell activity ( P < 0.001) , and increased number of invasive cells (187.34 ± 14.38, t= 2.17, P < 0.001) ; compared with the A375+ EC-304 group, the A375+ EC-304+ JSI-124 group showed significantly decreased protein expression of p-STAT3 ( P < 0.001) , decreased cell activity ( P < 0.001) , and decreased number of invasive cells (124.92 ± 8.72, t=-1.86, P < 0.001) . Conclusion:There is a signal crosstalk of VEGF-IL-6-STAT3 between cutaneous melanoma cells and vascular endothelial cells, which may play an important role in the proliferation and invasion of A375 cells.
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Objective:To analyze the relationship between surgical resection range and prognosis of medullary thyroid carcinoma.Methods:Clinical data of 39 patients with medullary thyroid carcinoma treated in Shanghai Sixth People′s Hospital from Jan 2017 to Mar 2020 were retrospectively analyzed.Results:There were 13 males and 26 females, age ranging from 26 to 72 years old. Preoperative calcitonin levels increased from 21.5 to 20 000 ng/L. Tumor stage: stage Ⅰ was 35.9%, stage Ⅱ 23.1%, stage Ⅲ 25.6%, stage Ⅳ 15.4%. The proportion of lymph node metastasis in central region was 53.8% (21/39). The proportion of lateral cervical lymph node metastasis was 43.6% (17/39), which was statistically related with the preoperative calcitonin level ≥200 ng/L. The median follow-up was 10 months, and the biochemical and anatomical cure rates were 66.7% and 33.3% respectively. Transient recurrent laryngeal nerve palsy, temporary and permanent hypothyroidism were 2.6%, 23% and 2.6%, respectively. There was no postoperative hemorrhage, infection, lymphatic leak or death.Conclusions:Bilateral total thyroidectomy, and at least ispilateral central lymph node dissection were advocated for patients with MTC. When preoperative calcitonin level ≥200 ng/L, lateral cervical lymph node dissection is advised.
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Bronchial asthma is a heterogeneous disease, and dust mite is the main allergen that causes typeⅠallergic reaction.Allergic reactions and inflammation reactions caused by dust mite allergenic proteins and allergenic components play a crucial role in the occurrence and development of asthma.Furthermore, nitric oxide and its derivatives produced by inflammatory cytokines in airway epithelium play a key role in inducing asthma.This paper reviews the effects of dust mite allergenic proteins, allergenic components and exhaled nitric oxide on asthma in recent years.
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PURPOSE: Breast cancer is the most frequently diagnosed malignancy in women worldwide. MicroRNAs (miRNAs) are thought to serve as potential biomarkers in various cancers, including breast cancer. METHODS: We evaluated the miRNA expression profiles in 1,083 breast cancer samples and 104 normal breast tissues from The Cancer Genome Atlas database. We used the edgeR package of R software to analyze the differentially expressed miRNAs in normal and cancer tissues, and screened survival-related miRNAs by Kaplan-Meier analysis. A receiver operating characteristic curve was generated to evaluate the accuracy of these miRNAs as molecular markers for breast cancer diagnosis. Furthermore, the functional role of these miRNAs was verified using cell experiments. Targets of candidate miRNAs were predicted using 9 online databases, and Gene Ontology (GO) functional annotation and pathway analyses were conducted using Database for Annotation, Visualization and Integrated Discovery online tool. RESULTS: A total of 68 miRNAs showed significantly different expression patterns between the groups (p < 0.001), and 13 of these miRNAs were significantly associated with poor survival (p < 0.05). Three miRNAs with high specificity and sensitivity, namely, miR-148b-3p, miR-190b, and miR-429, were selected. In vitro experiments showed that the overexpression of these 3 miRNAs significantly promoted the proliferation and migration of MDA-MB-468 and T47D cells and reduced the apoptosis of T47D cells. GO and pathway enrichment analyses revealed that the targets of these dysregulated miRNAs were involved in many critical cancer-related biological processes and pathways. CONCLUSION: The miR-148b-3p, miR-190b, and miR-429 may serve as potential diagnostic and prognostic markers for breast cancer. This study demonstrated the roles of these 3 miRNAs in the initiation and progression of breast cancer.
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Feminino , Humanos , Apoptose , Fenômenos Biológicos , Fenômenos Biológicos , Biomarcadores , Neoplasias da Mama , Mama , Diagnóstico , Ontologia Genética , Genoma , Técnicas In Vitro , Estimativa de Kaplan-Meier , MicroRNAs , Curva ROC , Sensibilidade e EspecificidadeRESUMO
Ophthalmology rotation is an integral part of standardized training for general practitioners. The duration of ophthalmology training is only half a month in whole 33-month general practice residency training. The main objective of training for general practice residents is to master the basic clinical skills of ophthalmology, to be able to accurately and timely identify eye diseases, especially those requiring urgent treatment, and to prevent the loss of visual function. This article introduces our teaching experience in ophthalmology training for general practice residents accumulated since 2014. We suggest that the trainees should pre-examine patients independently, play a role of standard patients and receive consultation from teachers. We developed a simple patient assessment form for primary care doctors, the patient who got 10 or more points of the form, should be referred to ophthalmological specialists.
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Ophthalmology rotation is an integral part of standardized training for general practitioners. The duration of ophthalmology training is only half a month in whole 33-month general practice residency training. The main objective of training for general practice residents is to master the basic clinical skills of ophthalmology, to be able to accurately and timely identify eye diseases, especially those requiring urgent treatment, and to prevent the loss of visual function. This article introduces our teaching experience in ophthalmology training for general practice residents accumulated since 2014. We suggest that the trainees should pre-examine patients independently, play a role of standard patients and receive consultation from teachers. We developed a simple patient assessment form for primary care doctors, the patient who got 10 or more points of the form, should be referred to ophthalmological specialists.
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Objective To investigate the effects of perinatal maternal infection of hepatitis B virus on neonatal umbilical cord blood immune factor and lymphocyte subsets,and to provide a theoretical basis for the prevention of neonatal hepatitis B.Methods A total of 110 cases of neonatus in Pengzhou People's Hospital from June 2015 to June 2016 were selected and divided into the observation group and the control group according to whether the pregnant women were infected with hepatitis B virus in perinatal period or not,each group had 55 cases.Neonatus umbilical cord blood were taken to detected serum immune globulin A (IgA),G(IgG),M(IgM) and lymphocyte subsets CD3+,CD4+,CD8+,CD19+,and the two groups' neonatal hepatitis B infection,lung infection,the incidence of jaundice and survival were compared.Results The observation group's neonatal IgA and IgM were respectively(0.46±0.12) and (0.68±0.23)g/L,which were significantly higher than those of the control group[(0.21±0.08),(0.68 ± 0.23)g/L],the differences had statistical significance(P＜0.05).There were no statistical significance in IgG level between the two groups(P＞0.05).The observation group's CD4+/CD8+,CD3+,CD4+ were significantly higher than those of the control group,CD19+ was significantly lower than that of the control group,the differences had statistical significance (P＜ 0.05).There was no statistical significance in CD8+ (P＞0.05).The observation group's neonatus survival rate was 96.36 ％,which was lower than that of the control group(100.00 ％),but the difference had no statistical significance(P＞0.05).The observation group's hepatitis B infection rate,pulmonary infection rate,incidence of jaundice were 41.82 ％,29.10 ％,10.10 ％,which were significantly higher than those of the control group(9.10 ％,7.27 ％,0.00 ％),the difference had statistical significance(P＜0.05).Conclusion Perinatal pregnant women infected with hepatitis B virus could sharply increase the level of IgA and IgG,increase the CD3+,CD4+,CD4+/CD8+,reduce the proportion of CD19+,affect neonatus immune function,and are more susceptible to viral infection.
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Objective To investigate the effects of perinatal maternal infection of hepatitis B virus on neonatal umbilical cord blood immune factor and lymphocyte subsets,and to provide a theoretical basis for the prevention of neonatal hepatitis B.Methods A total of 110 cases of neonatus in Pengzhou People's Hospital from June 2015 to June 2016 were selected and divided into the observation group and the control group according to whether the pregnant women were infected with hepatitis B virus in perinatal period or not,each group had 55 cases.Neonatus umbilical cord blood were taken to detected serum immune globulin A (IgA),G(IgG),M(IgM) and lymphocyte subsets CD3+,CD4+,CD8+,CD19+,and the two groups' neonatal hepatitis B infection,lung infection,the incidence of jaundice and survival were compared.Results The observation group's neonatal IgA and IgM were respectively(0.46±0.12) and (0.68±0.23)g/L,which were significantly higher than those of the control group[(0.21±0.08),(0.68 ± 0.23)g/L],the differences had statistical significance(P＜0.05).There were no statistical significance in IgG level between the two groups(P＞0.05).The observation group's CD4+/CD8+,CD3+,CD4+ were significantly higher than those of the control group,CD19+ was significantly lower than that of the control group,the differences had statistical significance (P＜ 0.05).There was no statistical significance in CD8+ (P＞0.05).The observation group's neonatus survival rate was 96.36 ％,which was lower than that of the control group(100.00 ％),but the difference had no statistical significance(P＞0.05).The observation group's hepatitis B infection rate,pulmonary infection rate,incidence of jaundice were 41.82 ％,29.10 ％,10.10 ％,which were significantly higher than those of the control group(9.10 ％,7.27 ％,0.00 ％),the difference had statistical significance(P＜0.05).Conclusion Perinatal pregnant women infected with hepatitis B virus could sharply increase the level of IgA and IgG,increase the CD3+,CD4+,CD4+/CD8+,reduce the proportion of CD19+,affect neonatus immune function,and are more susceptible to viral infection.
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Human resources are the key to TCM development. This article explored the effective channels to construct the system by deeply studying and identifying problem of the quantity, quality, configuration, development and training of TCM human resources under the characteristic medical reform of Gansu Province to provide references for better research and plan of TCM human resources for relevant department, further to realize the sustabile development of TCM characteristic medical reform in Gansu Province.
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based on the theory of tree structure and followed the characteristics of medical talents growth,Wuxi No.2 People's Hospital carried out hospitalTalent Tree Project innovatively,which is to trained talents corresponding tobase-trunk-crown of a tree.The project has won the 2013 Human Resource Development Excellence Award of Asian hospital management awards.We fostered talents hierarchically according to the talents training echelon structure and this provided a way of guarantee and innovation for the sustainable development of hospital.
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Objective:To evaluate the security of recombinant human brain natriuretic peptide (rhBNP)in the treatment of acute decompensated heart failure (ADHF ), and to provide the basis for its application.Methods:Both foreign language databases including PubMed,The Cochrane Library (Issue 1,2015),EMBase and Chinese databases involving CNKI,VIP and Wanfang Data were searched.Two reviewers independently extracted the data,and assessed the quality;then the Meta-analysis was performed by using RevMan 5.1 software and Stata 12.0 software.Results:A total of 35 randomized controlled trials (RCTs)involving 12 143 patients were included. The results of Meta-analysis showed that compared with control group the 1-month mortality (RR=1.01,95%CI:0.85-1.21,P =0.88),3-month mortality (RR=0.89,95%CI:0.63-1.27,P =0.53)and 6-month mortality (RR = 0.97, 95% CI: 0.87 - 1.08,P = 0.59 )in rhBNP group had no statistical differences;no statistical difference was found in the incidence of side effects (RR=1.01,95%CI:0.71-1.43,P =0.97).The incidence of hypotension in rhBNP group was significantly higher than that in control group (RR= 1.42,95%CI:0.99 -2.03,P =0.06).Conclusion:Compared with dobutamine,vasodilator drugs and placebo,rhBNP doesn’t change the mortality and incidence of adverse reactions of the patients with ADHF,but increases the risk of hypotension.Clinical application of rhBNP should be reasonable and its effectiveness should be exerted sufficiently,meanwhile,as much as possible to avoid hypotension,etc.
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Objective To explore the sustainable development strategy.of translational medicine in hospitals, we conducted the in-depth analysis for the current status of translational medicine in the Level 3-A hospitals in Wuxi city.Methods the SWOT analysis was performed to identify the advantages, disadvantages, opportunities and threats in the translational medicine development in for those hospitals.Results Development of translational Medicine in those hospitals in Wuxi city highlights the advantages, opportunities and challenges.Conclusions the leadship of Translational Medicine should change their concepts, provide full play to the advantages of a variety of resources, conducting reform and innovation, establish a long-term system of human resource for talented researchers and reward system in order to accelerate the development of translational medicine.
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The rural health service is the important part of China’s health initiative and improving the rural grass-root health technical capabilities and service level marks the strategic initiatives and present needs to promote the rural health service development. The Traditional Chinese Medicine ( TCM) has a broad and solid mass base in rural areas and concentrating on the promotion of the TCM’s appropriate technologies constitutes an important way to strive for the rural health services development. Gangu and Jingning Counties of the Gansu province fully use the Health XI Project platform to promote the TCM’s appropriate technology application and explore the service model. With the achieved good experiment results, effective development of the TCM services is promoted.
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<p><b>OBJECTIVE</b>To analyze constituents of traditional Chinese medicine galamina, and provide basis for the quality control of galamina.</p><p><b>METHOD</b>Polarization microscope and electron probe were adopted for a qualitative and quantitative analysis on microscopic appearance and micro-area constituents of galamina. Fourty-two elements contained in galamina were determined by the plasma mass-spectrometric method. Zinc oxide, the major constituent of galamina samples, was detected using the pharmacopeia method.</p><p><b>RESULT</b>The micro-area analysis on galamina samples showed that galamina is mainly constituted by various mineral particulates such as hydrozincite, smithsonite, zinc oxide and dolomite in a loose texture. It is also found that there are many counterfeit galamina sold in the market, marked by a high lead content in natural galamina samples.</p><p><b>CONCLUSION</b>Galamina is a mineral aggregation of multiple natural mineral substances, but those sold in the market has many quality problems. Therefore, a fast method shall be established to identify the authenticity of galamina and a standard shall be set to control harmful elements contained in galamina. It is suggested to conduct in-depth studies on excessive harmful elements contained in galamina medicinal materials.</p>
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Espectrometria de Massas , Medicina Tradicional Chinesa , Padrões de Referência , Preparações Farmacêuticas , Química , Controle de QualidadeRESUMO
<p><b>OBJECTIVE</b>To compare the differences in shapes and properties and the microscopic frameworks of the wild and cultivated Radix Salviae Miltiorrhizae from different regions.</p><p><b>METHOD</b>The differences in the shapes and properties, the characters of transverse sections, the powder and disintegrated tissue of roots were compared using microscopic measurement and statistics analysis.</p><p><b>RESULT</b>The wild Radix Salviae Miltiorrhizae had several long cylinder roots with rough flaky squama skin and brown red or wine culour, the cultivated had root of many branch with cling skin and brick-red or chestnut culour. The difference of microscopic histological structure was that the xylem vessel of wild Radix Salviae Miltiorrhizae had bunched vessel with the rank form of big diameter alternating with small diameter, and had stone cell on samples from some producing region, the xylem vessel of the cultivated had no bunched vessel and no stone cell with the rank form of tangential radial. Radix Salviae Miltiorrhizae cultivated in Sichuan Province is called original-region medicinal materials and named Chuandanshen. Chuandanshen had the differences with the Salviae Miltiorrhizae Radix cultivated in other region. The root of Chuandanshen had 1.2 cm diameter, and was bulky and fat with solid fabric and the fracture with brownish yellow color and cutin-alikeness, its xylem vessel of transverse section of root was thin with the rank form of tangential radial, and 19-24 vascular bundle and a few wood fiber.</p><p><b>CONCLUSION</b>Salviae Miltiorrhizae Radix of the wild and the cultivated, of the original-region (Chuandanshen) and the other-region, have the differences in the shapes and properties, and the microscopic frameworks. The character can be identified by the differences in the shapes of medicinal materials, and the rank form of vascular bundle of transverse section of root.</p>
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China , Microscopia , Controle de Qualidade , Salvia miltiorrhiza , QuímicaRESUMO
<p><b>OBJECTIVE</b>To compare pharmacognostic characteristics and microscopic characteristics of Radix Paeoniae Rubra (chishao) from different areas.</p><p><b>METHOD</b>Pharmacognostic characteristics and microscopic characteristics of Radix Paeoniae Rubra were compared by microscope count methods.</p><p><b>RESULT</b>Chishao in duolun was more straighter and longer, cortex with a set of closely spaced rill, peel off easily, pink section, etc. The wild chishao were different from the cultivated chishao on pharmacognostic characteristics and microscopic characteristics, such as appearance shape, smell, vessel arrangement, and number of crystal and starch in unit area.</p><p><b>CONCLUSION</b>Chishao in duolun were different form others, appearance shape, wood fiber, difference of appearance shape, vessel arrangement, and number of crystal and starch in unit area can be used as identificatin feature of the wild chishao and the cultivated chishao.</p>