1.Study on binding capacity of low-density lipoprotein to its receptors in diabetic patients
Dongping LIN ; Lizhen YANG ; Xiaohua PAN ; Boren JIANG ; Yuyu GUO ; Hui ZHU ; Tao LEI ; Yinli LU
Chinese Journal of Endocrinology and Metabolism 2011;27(5):418-419
The levels of low-density lipoprotein(LDL)glycation from control group,diabetic HbA1C < 7.0%,and HbA1C>7.0% groups were(17.7±2.31),(34.29±5.73),and(48.79±7.82)Glycogroups/LDL by fluorimetry.The LDL binding to its receptor in three groups were(37.65±5.20),(27.36±4.34),and(15.07± 2.23)ng/mg cell protein measured by enzyme-linked immunoreceptor assay.The glycated levels in two diabetic groups were higher than that in control group,and higher in HbA1C>7.0% group than in HbA1C<7.0% group(all P< 0.01).The results of LDL binding capacity to its receptor were just the opposite.
2.The time selection of high volume continuous veno-venous hemofiltration in the treatment of severe acute pancreatitis
Ling ZHAO ; Tiehe QIN ; Dongbo SHEN ; Yongbo LI ; Lei CHU ; Yuyu HOU
Journal of Chinese Physician 2001;0(07):-
0.05).Conclusion HV-CVVH is effective in the treatment of severe acute pancreatitis.For SAP patients who are suit for the hemofiltration treatment,the treatment of HV-CVVH for 8h and for more than 8h has nearly the same effectiveness.
3.Application research of remifentanil in patients with mechanical ventilation in ICU
Yonghui ZHANG ; Jiangqiong XIONG ; Lei ZHANG ; Tao WANG ; Yan ZHANG ; Yaorong ZHANG ; Lu WANG ; Yuyu CHEN
Chongqing Medicine 2015;(32):4496-4498
Objective To observe the efficacy and safety of remifentanil in patients with mechanical ventilation in Intensive Care Unit (ICU) .Methods Totally 90 cases were enrolled ,patients with mechanical ventilation were randomly divided into two groups (remifentanil vs .fentanyl) ,45 cases in each group .We used facial expression score (FPS) to monitoring pain ,richmond se‐dation agitation score (RASS) was the sedation tool for measuring quality and depth of sedation .Propofol wase used for sedation therapy .We recorded the data including FPS and RASS and vital signs during the treatment .The primary outcome was the time to reach the goal of analgesia sedation ,cases of using propofol and doses of propofol .The secondory outcome was mechanical ventila‐tion time ,ICU length of stay and adverse events .Results Fentanyl and remifentanil all could achieve the desired analgesic effect . Compared with fentanyl group ,FPS scores showed significantly decreased after 5 min application of remifentanil (P< 0 .05) ,but FPS scores showed significantly decreased after 10 min application of fentanyl .Analgesia goal time of the remifentanil and fentanyl were(5 .00 ± 1 .37)min and (30 .00 ± 4 .50)min ,respectively .Only 28 .9% of the patients should be combined use of propofol in remifentanil group ,but fentanyl group was 64 .4% (P<0 .01);the dosage of propofol of remifentanil group was lower than those of fentanyl group ;there was no significant difference in central venous pressure (CVP) and heart rate(HR) between the two groups at each time point(P>0 .05) .The mechanical ventilation time ,ICU length of stay in the patients with remifentanil were significantly shorter(P<0 .05) ,and adverse events occur less(all P<0 .05) .Conclusion Remifentanil analgesia in patients mechanical ventilated patients is fast onset of action ,analgesic effect significantly ,with less sedative drug dosage .It also can shorten mechanical ventila‐tion time ,ICU length of stay and has no obvious side effects .
4.Bipedicled scrotal flaps combined with keystone-design perforator island flaps in repairing postoperative large-area defects in 6 male patients with extramammary Paget′s disease of the perineum
Min WANG ; Yong AI ; Hui ZHANG ; Yuyu DENG ; Weiqi LEI
Chinese Journal of Dermatology 2023;56(1):64-66
Objective:To evaluate clinical efficacy of bipedicled scrotal flaps combined with keystone-design perforator island flaps in repairing postoperative large-area defects in male patients with extramammary Paget′s disease of the perineum.Methods:Clinical data were collected from 6 male patients with extramammary Paget′s disease of the perineum in Dermatology Hospital of Jiangxi Province from February 2018 to March 2019, and analyzed retrospectively. These patients were aged from 70 to 84 years (median, 77.5 years) , skin lesions involved the mons pubis, penis and scrotum, and the area of postoperative skin defects varied from 18 to 133 cm 2 (median, 96 cm 2) in size. In all the patients, mons pubis defects after tumor resection were repaired with abdominal keystone-design perforator island flaps, and scrotal and penile defects were repaired with bipedicled scrotal flaps using the remaining scrotal tissues. These patients were followed up at 1 and 3 months after surgery and every 3 months thereafter. Results:All the 6 patients were followed up for 3 - 36 months, with an average of 10 months. All flaps survived with a good color and texture match, and favorable function and appearance were achieved in both the donor and recipient sites.Conclusions:The bipedicled scrotal flaps combined with keystone-design perforator island flaps can repair postoperative large-area defects in male patients with extramammary Paget′s disease of the perineum. Moreover, the operation is simple, and good blood supply can be achieved.
5.Syndrome Differentiation-based Treatment of Diarrhea-predominant Irritable Bowel Syndrome with Chinese Medicine via 5-HT Signaling Pathway: A Review
Qingrui YANG ; Zeyu HU ; Yuyu LEI ; Xinzhu LI ; Huan CHEN ; Wei CUI ; Haitao LIU ; Xiaoquan DU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(24):250-259
Diarrhea-predominant irritable bowel syndrome (IBS-D) is a chronic functional bowel disorder characterized by abdominal pain and diarrhea, with visceral hypersensitivity and abnormal gastrointestinal dynamics as the pathophysiological basis. The brain-gut interaction plays a role in pain-related functional gastrointestinal disorders, especially IBS-D. 5-Hydroxytryptamine (5-HT), as an important brain-gut peptide regulating gastrointestinal function, affects brain activity, gastrointestinal motility, pain perception, mucosal inflammation, and immune response through brain-gut interaction and is associated with the occurrence and development of IBS-D. In recent years, traditional Chinese medicine (TCM) has shown great potential to mitigate gastrointestinal symptoms and improve the quality of life with its holistic view and treatment based on syndrome differentiation. Studies have shown that TCM treats IBS-D by regulating the 5-HT signaling pathway. With a focus on syndrome differentiation in TCM, this paper systematically describes the efficacy and mechanism of TCM in treating different TCM syndromes of IBS-D via the 5-HT signaling pathway, aiming to provide a scientific basis for TCM treatment of this disease.
6.Current Status of Outcome Indicators in Randomized Controlled Trials of Traditional Chinese Medicine for Treating Chronic Atrophic Gastritis
Jie ZHANG ; Yaxi SHANG ; Qingrui YANG ; Yuyu LEI ; Huan CHEN ; Cailing LI ; Yu KANG ; Xiaoquan DU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(17):193-202
ObjectiveThis paper aims to analyze the current status of outcome indicators in randomized controlled trials (RCT) of traditional Chinese medicine (TCM) for treating chronic atrophic gastritis (CAG), so as to provide references for constructing the core outcome set (COS) of TCM in the treatment of CAG. MethodChina National Knowledge Infrastructure (CNKI), Wanfang, VIP, SinoMed, PubMed, Embase, and Cochrane Library databases were searched for RCTs of TCM in the treatment of CAG in the last five years. The risk of bias of included studies was evaluated, and the selection status of outcome indicators was statistically analyzed. ResultA total of 150 RCTs were included, with a sample size of 44-398 cases. 164 outcome indicators were reported, with an application frequency of 1 229 times. The outcome indicators were classified into seven indicator domains according to functional attributes, followed by physical and chemical examination (69.41%), TCM syndrome (12.69%), symptoms and signs (11.15%), safety indicators (5.37%), quality of life (0.65%), long-term prognosis (0.65%), and economic evaluation (0.08%). According to the statistical analysis, there were problems in the selection of outcome indicators in RCTs of TCM for treating CAG, including various indicators, non-standard name reports, unclear primary and secondary indicators, random combination of subjective and objective indicators, neglected patient report outcome indicators, missing long-term prognosis and economic indicators, insufficient reporting of safety indicators, and inconsistent measurement tools and measurement time points. ConclusionIn the past five years, there have been many problems in the selection of outcome indicators in RCTs of TCM for treating CAG. It is necessary to actively promote the construction of the COS of TCM in the treatment of CAG and promote the high-quality development of clinical research of TCM.
7.Comparison of HPLC fingerprint and contents of four nucleoside components before and after processing of Succus bambusae pinella preparata
Linyu ZHENG ; Weihao ZHU ; Meimei LUO ; Chunmei MEI ; Weidong LI ; Lei XU ; Yuyu HUANG
China Pharmacy 2024;35(21):2590-2595
OBJECTIVE To investigate the changes in high performance liquid chromatography (HPLC) fingerprint spectra and nucleoside components between Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine and its processed product Succus bambusae pinella preparata, providing a reference for the quality evaluation of the latter. METHODS HPLC fingerprint was established for 10 batches of Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine and its processed product Succus bambusae pinella preparata following the Similarity Evaluation System of TCM Chromatographic Fingerprints (2012 Edition). Hierarchical cluster analysis (HCA), principal component analysis (PCA), and orthogonal partial least squares-discriminant analysis (OPLS- DA) were conducted on their common peaks. The contents of four nucleoside components, hypoxanthine, uridine, adenine, and guanosine, in both Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine and Succus bambusae pinella preparata were determined. RESULTS The similarity between the fingerprints of the 10 batches of Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine, Succus bambusae pinella preparata, and their corresponding reference fingerprints ranged from 0.851 to 0.990. A total of 10 common peaks were obtained for both samples, and 4 components were identified as hypoxanthine, uridine, adenine, and guanosine. The results of HCA, PCA and OPLS-DA showed that the samples of Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine and Succus bambusae pinella preparata were clustered into separate categories, with OPLS-DA selecting 4 differential components between them, ranked by variable importance projection values as peak 8, peak 1, peak 6 (adenine) and peak 10. The content determination results showed that the average contents of hypoxanthine, uridine, adenine and guanosine in Succus bambusae pinella preparata declined by 15.90%, 12.00%, 26.04% and 22.18% compared to Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine, respectively, with statistically significant differences in the contents of hypoxanthine, adenine and guanosine (P<0.05 or P<0.01). CONCLUSIONS The established fingerprint and content determination methods are simple to operate and have good repeatability, which are suitable for qualitative and quantitative analysis of Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine and Succus bambusae pinella preparata. The average contents of the four nucleoside components decreased after the processing of Succus bambusae pinella preparata.
8.Structural diversification of bioactive bibenzyls through modular co-culture leading to the discovery of a novel neuroprotective agent.
Yuyu LIU ; Xinnan LI ; Songyang SUI ; Jingshu TANG ; Dawei CHEN ; Yuying KANG ; Kebo XIE ; Jimei LIU ; Jiaqi LAN ; Lei WU ; Ridao CHEN ; Ying PENG ; Jungui DAI
Acta Pharmaceutica Sinica B 2023;13(4):1771-1785
Bibenzyls, a kind of important plant polyphenols, have attracted growing attention for their broad and remarkable pharmacological activities. However, due to the low abundance in nature, uncontrollable and environmentally unfriendly chemical synthesis processes, these compounds are not readily accessible. Herein, one high-yield bibenzyl backbone-producing Escherichia coli strain was constructed by using a highly active and substrate-promiscuous bibenzyl synthase identified from Dendrobium officinale in combination with starter and extender biosynthetic enzymes. Three types of efficiently post-modifying modular strains were engineered by employing methyltransferases, prenyltransferase, and glycosyltransferase with high activity and substrate tolerance together with their corresponding donor biosynthetic modules. Structurally different bibenzyl derivatives were tandemly and/or divergently synthesized by co-culture engineering in various combination modes. Especially, a prenylated bibenzyl derivative ( 12) was found to be an antioxidant that exhibited potent neuroprotective activity in the cellular and rat models of ischemia stroke. RNA-seq, quantitative RT-PCR, and Western-blot analysis demonstrated that 12 could up-regulate the expression level of an apoptosis-inducing factor, mitochondria associated 3 (Aifm3), suggesting that Aifm3 might be a new target in ischemic stroke therapy. This study provides a flexible plug-and-play strategy for the easy-to-implement synthesis of structurally diverse bibenzyls through a modular co-culture engineering pipeline for drug discovery.