1.Effects of Zuogui Pill on Gene Expression Profile of Regenerate Hepatic Tissue in MSG-Liver Regeneration-Rat
Hanmin LI ; Xiang GAO ; Misi ZHOU ;
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(02):-
Objective: To research the effects of Zuogui Pill on the gene expression profile of regenerate hepatic tissue in MSG-liver regeneration-rat.Methods: MSG-liver regeneration-rat models were copied;therapy group were given Zuogui Pill(5g/kg) by intragastric administration.Rats were executed at the 5th day after operation,and the regenerate liver tissues were frozen by liquid nitrogen.1176 gene chips of gene expression profile correlated to cell differentiation and multiplication were adopted to observe the changes of gene expression profile in the regenerate liver tissues.Results: There were 292 differential expression genes in therapy group compared with model group(20 genes were up-regulation expressed and 272 genes were down regulation expressed).Conclusion: Zuogui Pill has significant effects on the gene expression profile of regenerate hepatic tissue in MSG-liver regeneration-rat,and most of the genes are down regulation expressed.The result hints that Zuogui Pill could influence the liver regeneration by regulating the gene expressions of MSG-live regeneration-rat.Down regulation of the gene expressions of regenerate hepatic tissue in MSG-liver regeneration-rat possibly is one of the important molecular mechanisms of Zuogui Pill in nourishing liver and kidney.
2.Changes of tear film stability, goblet cell and mucin 5AC expression in conjunctivochalasis patients
Minhong XIANG ; Yuanling JIA ; Huanming ZHOU ; Qingsong LI ; Hanmin WANG ; Xingru ZHANG ; Xingxing CHEN
Recent Advances in Ophthalmology 2017;37(8):759-763
Objective To observe the changes of tear film stability,goblet cell and mucin 5AC expression in conjunctivochalasis patients,and explore the mechanism of conjunctivochalasis.Methods Conjunctivochalasis patients (30 cases) and single age-related cataract patients (15 cases) were collected as conjunctivochalasis group and normal control group.Eye symptom assessment (OSDI score),tear break-up time (BUT),Schirmer Ⅰ test,tear fern crystallization tests were performed for all the selected persons.Conjunctival rescent-shaped resections were made for all the conjunctivochalasis patients.Conjunctival tissue samples were stained by HE staining,AB staining,mucin 5AC immunohistochemical staining from the conjunctivochalasis group and norral control group respectively,and then statistical analysis was made.Results The OSDI score in the conjunctivochalasis group (37.80 ± 8.94) was significantly higher than that in the normal control group (11.40 ±4.08) (P <0.01).BUT in the conjunctivochalasis group (6.70 ± 2.76) s was significantly lower than that in the normal control group (13.67 ± 3.48) s (P < 0.01).Schirmer Ⅰ test in the conjunctivochalasis group (6.23 ± 3.13) mum was significantly lower than the normal control group (13.40 ± 3.74)mm (P < 0.01).Tear ferbing crystallization of the conjunctivochalasis group was decreased significantly compared with the normal control group (x2 =14.309,P =0.003).Light microscopic showed that conjunctival thickness was thinned,collagen fibers were less,elastic fiber was reduced,the lamina propria and interstitial were congestion and edema,the number of goblet cells was significantly reduced,and the positive staining of mucin 5AC staining was significantly lower in the conjunctivochalasis group than in normal control group (x2 =9.499,P =0.023).Conclusion For patients with conjunctivochalasis,the tear film function is affected,goblet cells are decreased,tear fern crystallization is decreased,mucin 5AC content is decreased,which finally leads the excessive conjunctival relaxation and abnormal ocular surface and tear.
3.Effect of metformin preconditioning on AMPK/PINK1 signaling pathway during myocardial ischemia-reperfusion injury in diabetic rats
Yunna MA ; Feng HE ; Fuyu WANG ; Hanmin XIANG ; Huimin ZHOU ; Jianjuan KE ; Yanlin WANG
Chinese Journal of Anesthesiology 2023;43(5):613-617
Objective:To evaluate the effect of metformin preconditioning on adenosine monophosphate-activated protein kinase(AMPK)/PTEN-induced putative protein kinase(PINK1) signaling pathway during ischemia-reperfusion (I/R) injury in diabetic rats.Methods:Thirty-six clean-grade healthy male Sprague-Dawley rats, aged 6 weeks, weighing 120-160 g, were divided into 3 groups ( n=12 each) by the random number table method: diabetic sham operation group (DS group), diabetic myocardial I/R group (DI/R group) and diabetic myocardial I/R+ metformin preconditioning group(DI/R+ Met group). After 4 weeks of feeding a high-fat and high-glucose diet, the model of type 2 diabetes mellitus was induced by a single intraperitoneal injection of 1% streptozotocin 40 mg/kg. The myocardial I/R injury was induced by blocking the anterior descending branch of the left coronary artery for 30 min followed by 120-min reperfusion in anesthetized animals. In DI/R+ Met group, metformin 200 mg/kg was given by intragastric gavage once a day within 1 week before myocardial ischemia. Blood samples from the femoral vein were collected at 120 min of reperfusion for determination of the serum creatine kinase isoenzymes (CK-MB) and cardiac troponin I (cTnI) concentrations by enzyme-linked immunosorbent assay. Then the rats were sacrificed and myocardial tissues were obtained for examination of the pathological changes(by HE staining) and for determination of the percentage of myocardial infarct size (by the double staining of Ewan blue and TTC) and expression of myocardial autophagy-related protein Beclin-1, PTEN-induced putative kinase 1 (PINK1), phosphorylated 5′-adenosine monophosphate-activating protein kinase (p-AMPK), and ratio of microtubule-associated protein 1 light chain 3Ⅱ/Ⅰ (LC3Ⅱ/Ⅰ) (by Western blot). Results:Compared with DS group, the percentage of myocardial infarct size and serum CK-MB and cTnI concentrations were significantly increased, the expression of Beclin-1, p-AMPK and PINK1 in myocardial tissues was up-regulated, the ratio of LC3II/I was increased( P<0.05), and the pathological changes were aggravated in DI/R group and DI/R+ Met group. Compared with DI/R group, the percentage of myocardial infarct size and serum CK-MB and cTnI concentrations were significantly decreased, the expression of Beclin-1, p-AMPK and PINK1 in myocardial tissues was up-regulated, the ratio of LC3Ⅱ/Ⅰ was increased ( P<0.05), and the pathological changes were significantly reduced in DI/R+ Met group. Conclusions:The mechanism by which metformin preconditioning reduces myocardial I/R injury is related to activation of AMPK/PINK1 signaling pathway and up-regulation of mitochondrial autophagy in diabetic rats.
4.Role of lactate dehydrogenase in diabetic neuropathic pain in mice: relationship with PGC-1α
Fuyu WANG ; Zhe JIN ; Wenyan PAN ; Hanmin XIANG ; Guanhua LU ; Jian HE ; Hanbing WANG ; Yanlin WANG
Chinese Journal of Anesthesiology 2024;44(1):71-75
Objective:To evaluate the role of lactate dehydrogenase in diabetic neuropathic pain (DNP) and the relationship with peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) in mice.Methods:SPF-grade healthy male C57BL/6J mice, aged 6-8 weeks, weighing 18-22 g, were used to establish diabetes mellitus model by intraperitoneal injection of streptozotocin (STZ) 120 mg/kg. Twenty-four mice with diabetes mellitus were divided into 2 groups ( n=12 each) using a random number table method: DNP group and DNP + oxamate group (OXA group). Another 12 SPF-grade healthy male C57BL/6J mice were selected as control group (C group). In OXA group, oxamate 750 mg/kg was intraperitoneally injected once a day for 28 consecutive days. The equal volume of normal saline was given instead in C group and DNP group. The mechanical paw withdrawal threshold (MWT), blood glucose and body weight were measured at 3 days before STZ injection and at 1, 2, 3 and 4 weeks after STZ injection (T 0-4). After the last behavioural test was completed, blood samples were collected from the posterior orbits of anesthetized mice for determination of serum lactate concentrations. The animals were then sacrificed and the tissues from the prefrontal cortex of the brain were taken for determination of lactate content, mitochondrial membrane potential (by the JC-1), content of reactive oxygen species (ROS) (using dihydroethidium probes), and level of histone lactylation and expression of PGC-1α (by Western blot). Results:Compared with C group, the MWT was significantly decreased at T 2-4, the serum lactate concentrations, contents of lactate and ROS and level of histone lactylation were increased, the mitochondrial membrane potential was decreased, and the expression of PGC-1α was down-regulated in DNP and OXA groups ( P<0.05). Compared with DNP group, no significant change was found in blood glucose and body weight ( P>0.05), the MWT was significantly increased at T 2-4, the serum lactate concentrations, contents of lactate and ROS and level of histone lactylation were decreased, the mitochondrial membrane potential was increased, and the expression of PGC-1α was up-regulated in OXA group ( P<0.05). Conclusions:Lactate dehydrogenase promotes the development of DNP, and the mechanism is related to promotion of increase in histone lactfication and down-regulation of PGC-1α expression in the prefrontal cortex of mice.
5.Construction and operation of the multi-level medical security system of the West China Women and Children Alliance
Jia LIU ; Tianyu JIANG ; Hanmin LIU ; Ying SHAN ; Shihao ZHANG ; Lianrui XIANG ; Yuanjie LIU
Chinese Journal of Hospital Administration 2024;40(1):12-16
Medical mutual aid is an important component of multi-level medical security system. West China Second University Hospital of Sichuan University led the establishment of the pediatric specialty alliance " West China Women and Children Alliance". Based on customized and inclusive mutual insurance product " Family Doctor Mutual Aid Plan", the alliance implemented key links such as mutual aid product forms, patient risk protection, institutional financing and hematopoiesis, and distribution of benefits to all parties, explored innovative mutual aid funding, payment, and incentive mechanisms, forming a closed-loop pediatric tiered diagnosis and treatment service system with the Mutual Aid Plan as the core. This system operated continuously under the " Four-in-One" framework, stimulating the integration of medical insurance and service supply systems while enhancing the synergistic effect between mutual insurance and social security. It has formed a distinctive health-centered multi-level medical security system within the alliance, and could provide reference for the construction and exploration of hierarchical diagnosis and treatment system.
6.The "Traditional Chinese medicine regulating liver regeneration" treatment plan for reducing mortality of patients with hepatitis B-related liver failure based on real-world clinical data.
Ling DAI ; Xiang GAO ; Zhihua YE ; Hanmin LI ; Xin YAO ; Dingbo LU ; Na WU
Frontiers of Medicine 2021;15(3):495-505
On the basis of real-world clinical data, the study aimed to explore the effect and mechanisms of the treatment plan of "traditional Chinese medicine (TCM) regulating liver regeneration." A total of 457 patients with HBV-related liver failure were retrospectively collected. The patients were divided into three groups: the modern medicine control group (MMC group), patients treated with routine medical treatment; the control group combining traditional Chinese and Western medicine (CTW), patients treated with routine medical treatment plus the common TCM formula; and the treatment group of "TCM regulating liver regeneration" (RLR), patients treated with both routine medical treatment and the special TCM formula of RLR. After 8 weeks of treatment, the mortality of patients in the RLR group (12.31%) was significantly lower than those in the MMC (50%) and CTW (29.11%) groups. Total bilirubin level significantly decreased and albumin increased in the RLR group when compared with the MMC and CTW groups (P < 0.05). In addition, there were significant differences in the expression of several cytokines related to liver regeneration in the RLR group compared with the MMC group. RLR treatment can decrease jaundice, improve liver function, and significantly reduce the mortality in patients with HBV-related liver failure. The mechanism may be related to the role of RLR treatment in influencing cytokines related to liver regeneration.
Drugs, Chinese Herbal/therapeutic use*
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Hepatitis B/drug therapy*
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Humans
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Liver Failure
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Liver Regeneration
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Medicine, Chinese Traditional
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Retrospective Studies
7.Study on knowledge, attitudes and practices of pulse oximetry among pediatric healthcare providers in China and their influencing factors
Fengxia XUE ; Yuejie ZHENG ; Adong SHEN ; Hanmin LIU ; Xing CHEN ; Lili ZHONG ; Guangmin NONG ; Xin SUN ; Gen LU ; Shenggang DING ; Yuanxun FANG ; Jiahua PAN ; Zhiying HAN ; Yun SUN ; Qiang CHEN ; Yi JIANG ; Xiaoping ZHU ; Suping TANG ; Xiufang WANG ; Changshan LIU ; Shaomin REN ; Zhimin CHEN ; Deyu ZHAO ; Yong YIN ; Rongfang ZHANG ; Ming LI ; Yunxiao SHANG ; Yaping MU ; Shuhua AN ; Yangzom YESHE ; Peiru XU ; Yan XING ; Baoping XU ; Jing ZHAO ; Shi CHEN ; Wei XIANG ; Lihong LI ; Enmei LIU ; Yuxin SONG ; Yonghong YANG ; Kunling SHEN
Chinese Journal of Applied Clinical Pediatrics 2022;37(23):1807-1812
Objective:To investigate the knowledge, attitudes, and practices (KAP) of pulse oximetry among pediatric healthcare providers in China and analyze the factor influencing the KAP.Methods:A self-developed questionnaire was used for an online research on the KAP of 11 849 pediatric healthcare providers from 31 provinces, autonomous regions, and municipalities of China from March 11 to 14, 2022.The factors influencing the KAP of pulse oximetry among pediatric healthcare providers were examined by Logistic regression. Results:The scores of KAP, of pulse oximetry were 5.57±0.96, 11.24±1.25 and 11.19±4.54, respectively.The corresponding scoring rates were 69.61%, 74.95%, and 55.99%, respectively. Logistic regression results showed that the gender and working years of pediatric healthcare providers, the region they were located, and whether their medical institution was equipped with pulse oximeters were the main factors affecting the knowledge score (all P<0.05). Main factors influencing the attitude score of pediatric healthcare providers included their knowledge score, gender, educational background, working years, region, medical institution level, and whether the medical institution was equipped with pulse oximeters (all P<0.05). For the practice score, the main influencing factors were the knowledge score, gender, age, and whether the medi-cal institution was equipped with pulse oximeters (all P<0.05). Conclusions:Chinese pediatric healthcare providers need to further improve their knowledge about and attitudes towards pulse oximetry.Pulse oximeters are evidently under-used.It is urgent to formulate policies or guidelines, strengthen education and training, improve knowledge and attitudes, equip more institutions with pulse oximeters, and popularize their application in medical institutions.