1.Therapeutic Observation of Abdominal Acupuncture for Perimenopausal Insomnia
Longhua LIN ; Hongyan XIANG ; Yabei JIN ; Lifang ZHENG
Shanghai Journal of Acupuncture and Moxibustion 2015;(5):438-439
Objective To observe the clinical efficacy of abdominal acupuncture in treating perimenopausal insomnia.Method Sixty patients with perimenopausal insomnia were randomized into a treatment group and a control group, 30 in each group. The treatment group was intervened by abdominal acupuncture, while the control group was by regular body acupuncture. The FSH, LH, and E2 contents, and Pittsburgh Sleeping Quality Indext (PSQI) were observed before and after intervention, and the clinical efficacies were compared.Result The total effective rate was 90.0% in the treatment group versus 86.7% in the control group, and the difference was statistically insignificant (P>0.05). The PSQI score was changed significantly in both groups after intervention (P<0.01). After intervention, there was no significant difference in comparing PSQI score between the two groups (P>0.05). The FSH, LH, and E2 contents were significantly changed after intervention in both groups (P<0.01). After intervention, there were no significant differences in comparing FSH, LH, and E2 contents between the two groups (P>0.05).Conclusion Abdominal acupuncture in an effective method in treating perimenopausal insomnia.
2.Capillary electrophoresis with inhibited electrochemiluminescent detection for the trace analysis of epinephrine and dopamine
Xueyang XIAO ; Longhua GUO ; Bin QIU ; Zhenyu LIN ; Guonan CHEN
Journal of Pharmaceutical Analysis 2010;22(2):77-82
In this paper, a novel electrochemiluminescent (ECL) detection approach was developed for highly sensitive detection of ECL inhibitors based on the ECL inhibition of Ru(bpy)32+/2-(Dibutylamino)ethanol (DBAE) system. A microfluidic ECL detection cell was fabricated to couple with the capillary electrophoresis system, the electrochemical system and the postcolumn injection system. Both Ru(bpy)32+ and DBAE solutions were injected directly to the working electrode surface by a micro-infusion system to obtain a high and stable ECL signal. The performance of this setup was demonstrated by the analysis of two typical ECL inhibitors, dopamine and epinephrine. Under the optimal conditions, the limit of detection (LOD) for dopamine and epinephrine was 50nM and 5nM respectively. The proposed method was also successfully used for the trace analysis of dopamine and epinephrine in human serum samples.
3. Effect of Wi-Fi microwave irradiation on testosterone synthesis in Leydig cells of male workers
Mengduan LIN ; Yi RONG ; Haiduan LIN ; Geng MAO ; Jing ZHANG ; Ziran CHEN ; Heming CHEN
China Occupational Medicine 2019;46(05):577-585
OBJECTIVE: To explore the effect of occupational wireless fidelity(Wi-Fi) microwave radiation on testosterone synthesis in male workers. METHODS: A total of 51 male workers exposed to microwave radiation in Wi-Fi test station of a mobile phone manufacturer were selected as exposure group by judgment sampling method. They were divided into <2.0 years subgroup and ≥2.0 years subgroup according to the length of work years. At the same time, 30 male workers who were not exposed to occupational hazards in the same factory were selected as the control group. Serum total cholesterol level was detected by colorimetry. Serum testosterone, cyclic adenosine monophosphate(cAMP), cytochrome P450 17 A1(P450 c17), cytochrome P450 cholesterol side chain cleavage enzyme(P450 scc), levels were detected by enzyme-linked immunosorbent assay. The relative expression of P450 scc and P450 c17 mRNA in whole blood was measured by real-time quantitative polymerase chain reaction. RESULTS: The levels of serum testosterone, P450 c17 and the relative expression of P450 c17 mRNA in workers of the exposure group were lower than that in the control group(P≤0.05), and the above indexes in the sub-exposure group with work age ≥2.0 years was lower than that in the control group(P<0.05). There was no significant difference in levels of serum total cholesterol, cAMP, P450 scc and relative expression of P450 scc in whole blood among the exposed group,two subgroups and the control group(P>0.05). CONCLUSION: Long-term exposure to Wi-Fi microwave radiation can inhibit the expression of P450 c17 mRNA and the synthesis of P450 c17 protein, both are key enzymes for testosterone synthesis in male workers, thereby affecting the synthesis and secretion of testosterone.
4.Combination effect of radiation and p53 gene regulated by a radiation-enhanced promoter on tumor cells
Weifeng WANG ; Feng YUAN ; Zhiren LIN ; Guoping WANG ; Huagao YANG ; Longhua CHEN
Chinese Journal of Radiological Medicine and Protection 2014;34(7):493-496
Objective To study the specific killing effect in human carcinoma cells aftercombination treatment of radiation and p53 gene regulated by a radiation-enhanced promoter.Methods Aplasmid pE6 (TATA)-p53 was constructed.After irradiation,the expression of P53 was detected withWestern blot assay,apoptosis was detected by Annexin V-FITC,and cell survival was detected byclonogenic assay then the sensitivity enhancement ratio (SER) was analyzed for HeLa and A549 cells.Results The expression of P53 were increased in the irradiated cells and 6 Gy irradiation triggered thestrongest activity.After p53 transfection,radiation-induced apoptosis was obviously enhanced incomparison with the control group without gene transfection (F =11.018,10.736,P < 0.05).The SER ofp53-promoter was 2.36 for A549 cells and 2.56 for Hela cells.Conclusions The p53-plasmid promotercould induce apoptosis and enhance the radiosensitivity of tumor cells,which may provide a noveltherapeutic strategy for cancer treatment.
5.Efficacy of Phaco combined with IOL implantation through 3.2mm transparent corneal incision in treatment of cataract
International Eye Science 2019;12(7):1205-1207
AIM: To explore the effect of 3.2mm clear corneal incision cataract phacoemulsification combined with intraocular lens(IOL)implantation.
METHODS: Retrospective analysis of 95 cases(107 eyes)cataract patients treated in our hospital, and all patients were given 3.2mm clear corneal incision Phaco combined with IOL implantation. The postoperative visual acuity, corneal curvature, corneal astigmatism, anterior chamber depth and complications were observed.
RESULTS: Postoperative 3d, 1wk, 1mo patients with the uncorrected visual acuity(0.16±0.06, 0.15±0.05, 0.14±0.04)were significantly better than preoperative(0.48±0.15). The anterior chamber depth(3.86±1.09, 3.69±1.04, 3.84±1.07mm)was significantly higher than the preoperative(2.71±0.88mm)(P<0.05), but there was no significant difference in corneal curvature and corneal astigmatism before operation. There was no difference in surgical astigmatism after operation(P>0.05).
CONCLUSION: 3.2mm clear corneal incision Phaco combined with IOL implantation can effectively improve the recovery of postoperative visual acuity and reduce the corneal astigmatism, and it is a safe and effective surgical treatment of cataract.
6.Application effect of soft corneal contact lens on corneal limbal stem cell transplantation in elderly patients with pterygium
International Eye Science 2019;19(2):329-331
AIM: To investigate the clinical effects of soft corneal contact lens after excision of pterygium and limbal stem cell transplantation in elderly patients.
METHODS:Totally 90 patients(90 eyes)with unilateral pterygium were divided into two groups according to the random number table method. The observation group(45 cases)were treated with soft corneal contact lens after corneal limbal autograft transplantation merely, 45 cases of the control group were treated by autologous limbal stem cell transplantation. According to the data obtained from two groups of patients, the following indicators were compared: corneal healing time, symptom score of corneal irritation in 1d, 3d, 5d, 7d after operation, postoperative 24h、48h, two groups of patients with pain(VAS score),the recurrence rate of pterygium.
RESULTS: In control group, the corneal healing time(5.38±1.67d)was more than that of observation group(3.10±1.12d; P<0.05); Score of the corneal stimulation symptom and VAS after operation were higher than those of the control group(P<0.05), and the difference in recurrence of pterygium was not statistically significant(P>0.05).
CONCLUSION: Autologous corneal stem cells combined with soft corneal contact lens in treatment of elderly patients with pterygium can reduce the healing time, and reduce the postoperative symptom of corneal irritation, meanwhile it has no effect on the recurrence rate of pterygium.
7.Yunpi Huatan Tongqiao Prescription Regulates Microglial Cell Polarization Phenotype to Improve Inflammation and Cognitive Impairment in OSA Mice by Down-regulating Glycolysis
Wenyan PU ; Anqi LIU ; Yan LIN ; Xuejun LI ; Hongyu ZHANG ; Zhiyan JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(22):35-42
ObjectiveTo validate the efficacy of Yunpi Huatan Tongqiao prescription (YHTP) in down-regulating glycolysis to modulate microglia phenotype and improve inflammation and cognitive memory deficits in obstructive sleep apnea (OSA) mice. MethodForty-eight male Balb/C mice were randomly divided into a normal group, a model group, a montelukast sodium group (30 mg·kg-1), and low, medium, and high dose groups of YHTP (8.28, 16.56, and 33.12 g·kg-1), with 8 mice in each group. All groups, except the normal group, received intraperitoneal injections of lipopolysaccharide (LPS) and underwent chronic intermittent hypoxia (CIH) modeling for 4 weeks. Subsequently, the mice were treated with medications for 4 weeks and then sampled. Animal behavioral tests assessed memory impairment due to hypoxia. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to measure mRNA expression levels of M1-associated inflammatory factors interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and markers such as T lymphocyte activation antigen (CD86) and inducible nitric oxide synthase (iNOS), as well as M2-associated inflammatory factors interleukin-10 (IL-10), transforming growth factor-β (TGF-β), and the marker mannose receptor (CD206) in hippocampal tissue. Western blot was employed to detect differences in the expression of M1 and M2 microglia phenotypic markers (CD86, CD206) and glycolysis-related proteins glucose transporter type 1 (GLUT1), hexokinase 2 (HK2), phosphofructokinase (PFKM), pyruvate kinase 2 (PKM2), and monocarboxylic acid transporter 1 (MCT1). ResultBehavioral tests showed that compared to the results in the normal group, the Y-maze autonomous alternation rate was significantly reduced in the model group (P<0.01). The latency time for the target hole in the Barnes' maze during the training period (days 2, 3, 4) and testing period (days 5, 12) was significantly increased (P<0.05, P<0.01). M1 glial cell markers CD86 and iNOS, as well as inflammatory factors IL-1β and TNF-α mRNA, were significantly elevated (P<0.01). In contrast, the mRNA expression of M2 glial cell markers IL-10, CD206, and TGF-β was significantly reduced (P<0.01). The protein expression of glycolytic proteins HK2, PFKM, PKM2, MCT1, and the M1 marker CD86 was significantly increased (P<0.05, P<0.01), while M2 marker CD206 protein expression was significantly decreased (P<0.01). Compared to the results in the model group, the Y-maze autonomous alternation rate was significantly increased in the medium and high dose groups of YHTP (P<0.05, P<0.01). The latency time for the target hole during the training (day 4) and testing periods (days 5, 12) was significantly reduced (P<0.01). Real-time PCR results indicated that mRNA expression levels of M1-related pro-inflammatory factors in the hippocampal tissue were significantly reduced in the low, medium, and high dose groups of YHTP (P<0.01), while M2-related inflammatory factors' mRNA expression was significantly increased (P<0.01). Western blot results showed that in the medium and high dose groups of YHTP, the expression of the M1 marker CD86 in the hippocampus was reduced, whereas the expression of the M2 marker CD206 was significantly increased (P<0.01), with a significant decrease in the expression of glycolysis-related proteins (P<0.01). ConclusionYHTP can improve inflammation and cognitive impairment induced by hypoxia in OSA model mice. This is achieved by downregulating glycolysis in brain microglia, inhibiting M1 activation, reducing pro-inflammatory factor release, and promoting M2 activation, thereby exerting a therapeutic effect on inflammation and cognitive impairment caused by OSA.
8.Network Pharmacology-based Analysis on Mechanism of Aconiti Lateralis Radix Praeparata and Epimedii Folium in Treatment of Chronic Heart Failure
Jia-ying HUANG ; Zi-lin MA ; Tian-yi CHENG ; Zhong-yan ZHOU ; Chen ZHU ; Jing-yi TANG
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(10):142-151
Objective:To explore the mechanism of the prescription consisting Aconiti Lateralis Radix Praeparata and Epimedii Folium in the treatment of chronic heart failure (CHF) based on network pharmacology,followed by verification in H9c2 myocardial cells with hypoxia-reoxygenation injury
9.Evaluation of serum gamma-glutamyltransferase assays by using the International Federation of Clinical Chemistry and Laboratory Medicine reference method
Ning XU ; Songbai ZHENG ; Li LIN ; Junhua ZHUANG ; Jianhua XU ; Lianying LIN ; Lei SUN ; Longhua GUO ; Xianzhang HUANG
Chinese Journal of Laboratory Medicine 2009;32(5):494-498
Objective To evaluate the measurement accuracy of serum gamma-glutamyltransferase (GGT) assays manufactured in China. Methods The International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) reference method for GGT was set up and, after verification, was used to evaluate the performance of routine assay systems made in China. The evaluation was performed twice before and after a calibration by a common serum calibrator. Results For the reference measurement, the within run and total CVs were all less than 1%. The biases with the target values of IFCC External Quality Assessment Scheme for Reference Laboratories (RELA) were all within the limit of equivalence. Before a calibration with a common calibrator, the largest biases of results of GGT of the routine tasting systems compared with reference method at three medical decide levels were -47.53%, -34.11% and -30.07% respectively, and the averaged biases were 14.53% ,12.88% and 12.48%. After calibrating by fresh serum calibrator,the largest biases were reduced to - 17.63%, -5.88% and -4.08% ,the averaged biases were reduced to 7.50%, 2.70% and 1.87%. Conclusion The performance of GGT measurements can be effectively improved by using a common fresh serum calibrator that has a value assigned with the reference method.
10. Mechanism and experimental verification of "Activating Spleen Treatment" in treating adenoidal hypertrophy of children based on network pharmacology
Yi-Xing ZHANG ; Yi-Xing ZHANG ; Yan LIN ; Zhi-Yan JIANG ; Ming YANG
Chinese Pharmacological Bulletin 2023;39(12):2361-2369
Aim To investigate the pharmacological mechanism of the couplet medicines " Cangzhu-Yiy-iren" in treating adenoid hypertrophy (AH) of children based on network pharmacology. Methods To screen the active ingredient and relevant targets of the couplet medicines "Cangzhu-Yiyiren", a visual network map of " Drug-Component-Target " was constructed; related targets of AH were retrieved and standardized, and A PPI network to treat AH of children by " Cangzhu-Yiyiren" was constructed. Enrichment analysis was performed for the core targets, and a " targets -pathways" network was constructed. The expression of target proteins from spleen tissues of different groups was determined by Western blot to verify that atractylone regulated the expression of inflammatory factors by HIF-1 α-SUMOylation. Results A total of 71 drug-related targets and 337 disease-related targets for AH in children were obtained, and there were 30 " Drug-Disease " intersection targets. The main active components of the couplet medicines "Cangzhu-Yiyiren" were stigmaster-ol, atractylone and so on. The biological processes mainly involved in were tube morphogenesis, response to hormone, the main cellular components involved in were membrane raft, transcription regulator complex, and the molecular function of related targets were mainly enriched in the transcription factor binding, protein domain specific binding, etc. The enrichment analysis indicated that it was associated with apoptosis-multiple species, VEGF signaling pathway, and HIF-1 signaling pathway ,etc. The results of animal experiments showed that SUMO-1,HIF-1α,VEGF and VEGF-R protein expression were all down-regulated compared with the model group ( P < 0. 05 ). Conclusions The treatment of pediatric AH which takes the " Activating Spleen Treatment of Nasa" as the guiding ideology, is realized through multi-components, multi-target, multi-pathways, and mainly from the anti-inflammatory, immune regulation, antioxidant and other aspects to play its role in the treatment of children with AH.