1.Prevalence of Echinococcus infections in small rodents in Yushu City, Qinghai Province in 2023
Gengcheng HE ; Shusheng WU ; Xianglan QIN ; Jilong MA ; Tingjun YU ; Chengxi SONG ; Xiaojin MO ; Xiao MA ; Jianfeng BA ; Guirong ZHENG ; Bin JIANG ; Tian TIAN ; Shijie YANG ; Ting ZHANG ; Xiaonong ZHOU
Chinese Journal of Schistosomiasis Control 2024;36(2):169-173
Objective To investigate the prevalence of Echinococcus infections in small rodents around human residential areas in Yushu City, Qinghai Province in 2023, so as to provide insights into precision echinococcosis control. Methods One or two quadrats, each measuring 50 m × 50 m, were randomly assigned in Shanglaxiu Township and Longbao Township, Yushu City, Qinghai Province on June 2023, respectively, and 300 plate-type mouse traps, each measuring 12.0 cm × 6.5 cm, were assigned in each quadrat. Small rodents were captured during the period between 10 : 00 and 18 : 00 each day for 4 days. Then, all captured small rodents were identified and dissected, and liver specimens with suspected Echinococcus infections were subjected to pathological examinations. The Echinococcus cytochrome c oxidase 1 (cox1) gene was amplified using PCR assay, and the sequence of the amplified product was aligned to that was recorded in the GenBank to characterize the parasite species. In addition, a phylogenetic tree of Echinococcus was generated based on the cox1 gene sequence using the neighbor-joining method. Results A total of 236 small rodents were captured in Shanglaxiu and Longbao townships, Yushu City, including 65 Qinghai voles and 51 plateau pikas in Shanglaxiu Township, and 62 Qinghai voles and 58 plateau pikas in Longbao Township, and there was no significant difference in the constituent ratio of small rodents between the two townships (χ2 = 0.294, P > 0.05). Seven plateau pikas and 12 Qinghai voles were suspected to be infected with Echinococcus by dissection, and pathological examinations showed unclear structure of hepatic lobules and disordered hepatocyte arrangement in livers of small rodents suspected of Echinococcus infections. PCR assay identified E. shiquicus DNA in 7 Qinghai voles, which were all captured from Shanglaxiu Township. Phylogenetic analysis showed that the cox1 gene sequence of Echinococcus in small rodents was highly homologous to the E. shiquicus cox1 gene sequence reported previously. Conclusion Plateau pika and Qinghai vole were predominant small rodents around human residential areas in Yushu City, Qinghai Province in 2023, and E. shiquicus infection was detected in Qinghai voles.
2.Construction of Rat Model of Migraine with Hyperactivity of Liver-Yang and Blood Stagnation Based on"Combination of Disease and Syndrome"
Qiang ZHU ; Dingding LIU ; Dong LIU ; Guirong ZENG ; Jingru WANG ; Jing YANG ; Jiansheng GUO ; Xuemei WU
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(10):3264-3271
Objective To study the characteristics of a rat model of migraine with hyperactivity of liver-yang and blood stagnation,which was established by Fuzi Decoction combined with electrical stimulation of the trigeminal ganglion.Methods The 30 SD rats were divided into normal group,model group,and Zhengtian pill group(1.6 g·kg-1),with 10 rats in each group.Rats in the model group and Zhengtian pill group were fed with aconite decoction(2.00 g·kg-1)once a day for 28 day to establish the hyperthermia model;On the 15 day of intragastric administration,rats in the Zhengtai pill group were simultaneously given Zhengtai pill solution once a day for 14 day;At 29 day,the trigeminal ganglion was stimulated to create the migraine model of hyperliver and stasis.After 30 min of the last dose,the macroscopic signs and behaviors were observed,and the blood rheology was detected by blood visticometer.Positive substance P(SP)expression,mRNA and relative protein expression in the trigeminal cervical pulp complex(TCC)in rat mice by immunohistochemistry,RT-qPCR and Western blot analysis.Results Compared with the normal group,the model group has macro signs such as red eyes,irritability,cage fighting,dark tongue and stasis points;regular head positioning and frequent hair management;increased distance in the central area(P<0.05).The relative viscosity of whole blood,plasma viscosity,red blood cell aggregation index all increased(P<0.05),and the red blood cell variant index decreased(P<0.05);SP positive expression,mRNA and the relative protein expression increased in TCC(P<0.05).Compared with model group,Zhengtian pill group can improve macro representation and behavior significantly;can significantly reduce central distance(P<0.05);can reduce plasma viscosity,high-shear relative viscosity of whole blood,and red blood cell aggregation index(P<0.05);increase the Red blood cell variant index significantly(P<0.05);down-regulate SP positive expression,mRNA and relative protein expression in TCC(P<0.05,P<0.01).Conclusion SD rats were used for 4 weeks to construct a migraine model of hyperhepatic hyperactivity and stasis,which was basically consistent with the clinical manifestations.
3.The mechanism of effective fractions from Xiongma decoction in the treatment of migraine model rats with hyperactivity of liver-yang and blood stasis
Dingding LIU ; Dong LIU ; Lulu CHANG ; Jingru WANG ; Xuemei WU ; Jiansheng GUO ; Guirong ZENG
China Pharmacy 2022;33(16):1950-1955
OBJECTIVE To expl ore the mechanism of effe ctive fractions from Xiongma decoction in the treatment of migraine with hyperactivity of liver-yang and blood stasis. METHODS Totally 70 male SD rats were randomly divided into normal group , model group ,positive control group (Flunarizine hydrochloride capsules 0.9 mg/kg),low-dose and high-dose groups of Xiongma decoction effective fractions (ethyl acetate extract 0.87,3.46 g/kg,n-butanol extract 1.80,7.20 g/kg). Except for normal group , rats in other groups were given aconite decoction (2 g/kg),once a day ,for 4 consecutive weeks to establish the hyperactivity model of liver-yang. On the 15th day of modeling ,all administration groups were given corresponding drugs intragastrically at the same time ,once a day ,for 2 consecutive weeks. On the 29th day of modeling ,rats trigeminal ganglion was stimulated to establish the migraine model with hyperactivity of liver-yang and blood stasis ,then the medication was maintained for another time according to the above method. The macroscopic signs and behavior of the rats were observed ;positive expression ,mRNA and protein expression of transient receptor potential vanilloid 1 (TRPV1),calcitonin generelated peptide (CGRP),calcitonin receptor-like receptor (CRLR) and receptor-associated membrane proteins 1 (RAMP1) in trigeminal cervical spinal complex (TCC) were detected by immunohistochemistry ,RT-qPCR and Western blot assay. RESULTS Rats in model group showed macrophysical signs and behaviora l manifestations related to migraine with hyperactivity of liver-yang and blood stasis. Thirty minutes after last administration ,the above conditions of rats in Xiongma decoction effective fraction groups were improved significantly. Compared with normal group , positive expression,mRNA and protein expression of TRPV 1,CGRP, CRLR and RAMP 1 in TCC of rats in the model group were significantly increased (P<0.05). Compared with model zengguirong@hnse.org group, most of above indicators in Xiongma decoction effective fraction groups were significantly decreased (P<0.05). CONCLUSIONS The mechanism of Xiongma decoction in preventing and treating migraine with hyperactivity of liver-yang and blood stasis may be related to inhibit the activity of TRPV1-CGRP/CGRP receptor signaling pathway in TCC.
4.Investigation and analysis of the psychological status of the clinical nurses in a class A hospital facing the novel coronavirus pneumonia
Jia PU ; Guirong LI ; Lulu CAO ; Yuanchen WU ; Linglin XU
Chongqing Medicine 2020;49(0):E015-E015
Objective To investigate the psychological status of clinical nurses in a class A hospital facing the novel coronavirus pneumonia (NCP), in order to provide effective psychological and social intervention. Methods A total of 867 clinical nurses were randomly selected from the Mianyang Central Hospital. The general information questionnaire, standard self-assessment anxiety scale (SAS) and crisis intervention classification assessment scale (TAF) were used to conduct self-assessment questionnaire survey. Then the data were analyzed by the SPSS22.0 software. Results 38.8% of the nurses had a low risk of infection, 18.0% of them had a medium risk, 29.6% had a medium high risk, and 13.6% had a high risk. The SAS scores of clinical nurses in this hospital were statistically significant different, compared with the Chinese norm value ( P <0.05). The difference between TAF score and the degree of crisis response of nursing students in SARS period was statistically significant ( P <0.05). The majority of clinical nurses had less crisis response to NCP, with 80.7% of them suffered mild cognitive, emotional and behavioral damage, and only 2.0% suffered severe damage. Analysis of related factors showed that department, self-test risk of infection, length of service had significant influence on SAS and TAF scores of clinical nurses ( P <0.05). Conclusion During the period of NCP prevalence, no obvious anxiety and crisis reaction among clinical nurses is found in the third grade hospital. However, the psychological changes of clinical nurses with middle-age, from key epidemic prevention departments and in high risk of self-test infection are more likely to produce anxiety and crisis reaction. Therefore, appropriate and timely psychological intervention should be given.
5.Study of a two?way referral mode for the treatment of cervical disease within a medical alliance
Baohua YANG ; Jun XU ; Feng XIE ; Huijuan YANG ; Xiangrong ZHANG ; Zhenyu PIAO ; Hui HE ; Guirong WU ; Mingxia YU
Chinese Journal of Health Management 2019;13(5):421-426
Objective To explore the establishment of a two-way referral system for the treatment of cervical diseases within a medical alliance. The two-way referral system was introduced to reduce the morbidity and mortality of cervical cancer through better management of patients'who have tested positive for cervical disease, screening effectively for early diagnosis and treatment of cervical precancerous lesions, and providing early interventions for cervical cancer patients. Methods The control group consisted of 2, 515 patients who had screened positive for cervical disease between January 2018 and December 2018 at one of four community health service centers that were not within the medical alliance. The experimental group consisted of 2, 384 patients who had screened positive for cervical disease at one of four community health service centers in the medical alliance. The control group was treated using the original management mode;the experimental group's treatment was managed within the two-way referral system, which included standardized screening, referral, follow-up, health education, and professional training. The hospital visit rates, time intervals from diagnosis to the start of interventions, detection rates, and treatment rates were observed for both groups of women. Results The hospital visit rates, detection rates, and treatment rates were higher for those in the experimental group than the control group. The time interval from receiving a diagnosis to the first hospital visit was (16.9±11.5) days for patients in the experimental group and (25.7±20.9)days for those in the control group. The difference was a statistically significant (-0.05). Conclusion The management of cases in a two-way referral system within a medical alliance facilitates patients receiving earlier diagnosis and treatment for cervical pre-cancerous lesions and malignant tumors. Such efficiency improvements may reduce morbidity and mortality as well as help control medical costs, all of which have long-term economic and social significance.
6.Protective effects and mechanisms of Xingnaojing Injection on early global brain ischemic-induced deep coma in rats.
Hongya XIN ; Zhengang SHI ; Lifeng WU ; Miaohong ZHANG ; Xiangzhong YUAN ; Ping WANG ; Yongxing XU ; Guirong ZENG ; Haijun WANG
Journal of Central South University(Medical Sciences) 2019;44(12):1330-1337
To study the protective effect of Xingnaojing Injection on early global brain ischemia-induced deep coma in rats.
Methods: The deep coma model was induced by global brain ischemia by using four-vessel occlusion method in male SD rats. According to the body weight, the rats were randomly divided into 8 groups: a model control group, three different dose of Xingnaojing Injection (1.8, 3.6 and 5.4 mL.kg-1) groups, a Xingnaojing Injection (3.6 mL.kg-1) plus PI3K inhibitor group, a naloxone injection (0.04 mL.kg-1) group and a naloxone injection (0.04 mL.kg-1) plus Xingnaojing Injection (3.6 mL.kg-1) group (n=8 per group). In addition, eight animals served as the sham group were performed same operation with the model group excepting no blockage of the blood vessels. After the operation, three different doses of Xingnaojing Injection and/or naloxone injection were given intravenously once a day for three days. Ten μL PI3K inhibitor (LY294002, 10 mmol/L) was injected via anterior cerebral ventricle at once after global brain ischemia. The awakening time after the first drug treatment, the grasping power and the autonomous activity within 10 min after the last drug treatment were recorded. The levels of both dopamine (DA) and glutamate (Glu) in cerebrospinal fluid were detected by ELISA. The pathological changes were observed in brain tissue slices with HE staining and the protein levels of Akt/p-Akt and cAMP-response element binding protein (CREB)/p-CREB in hippocampus were detected by Western blotting.
Results: Comparing with the model group, single administration of Xingnaojing Injection could significantly shorten the waking time (P<0.05) and continuous administration of Xingnaojing Injection for 3 d could increase grasping power, distance, frequency and duration of autonomous activities (P<0.05 or P<0.01) in the deep coma rat. Also, Xingnaojing Injection could inhibit these increases in neurotransmitters DA and Glu contents (P<0.05 or P<0.01), and improve pathological changes of hippocampal tissue. Xingnaojing Injection significantly induced protein phosphorylation of both Akt and CREB (P<0.05 or P<0.01); this effect was inhibited by PI3K inhibitor (P<0.05 or P<0.01). Moreover, the protective effects of naloxone on awakening time, grasping power, the autonomous activity and hippocampus damage in global brain ischemia-induced deep coma could be enhanced by joint use of Xingnaojing Injection (P<0.05 or P<0.01).
Conclusion: Xingnaojing Injection could significantly improve deep coma induced by global brain ischemia in rat, which is related to inducing PI3K/Akt-dependent protein phosphorylation of CREB, and reducing hippocampal damage. The protective effect of Xingnaojing Injection is synergistically enhanced by naloxone.
Animals
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Brain
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Brain Ischemia
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Coma
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Drugs, Chinese Herbal
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Male
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Phosphatidylinositol 3-Kinases
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Rats
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Rats, Sprague-Dawley
7.Research progress in adiponectin and cognitive impairment.
Lifeng WU ; Yahui TANG ; Zhengang SHI ; Guirong ZENG ; Yuhong WANG ; Dejian JIANG
Journal of Central South University(Medical Sciences) 2019;44(1):100-104
Adipocytokines are polypeptides or proteins that are secreted by fat cells with a wide range of biological activities. Adiponectin is a fatty cytokine with insulin sensitization. It possesses the function of anti- diabetes, atherosclerosis and anti-inflammation. Adiponectin may participate in regulating the development of cognitive impairment, which is considered as a new regulatory factor for cognitive impairment.
Adiponectin
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Cognitive Dysfunction
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Diabetes Mellitus
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Humans
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Insulin
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Insulin Resistance
8.Research progress on animal models of postpartum depression and their behavior evaluation methods
Yahui TANG ; Guirong ZENG ; Lifeng WU ; Yuhong WANG ; Dejian JIANG
Acta Laboratorium Animalis Scientia Sinica 2018;26(1):133-138
Postpartum depression(PPD)is one of the most common types of postpartum psychiatric syndromes. Because of the complex and changeable characteristics in PPD disease and the special period after childbirth, there are many clinical limitations in the study of this disease. Therefore,the preparation and establishment of a proper animal model closed to clinical and behavioral evaluation method plays an important role in study of its pathogenesis. This review mainly introduces the commonly used postpartum depression animal models and the behavioral evaluation method. It is hoped to provide a reference for further study of PPD pathogenesis and for the drug research and development.
9.Protective effects of shenfu injection on cerebral ischemia reperfusion injury in rats
Changxi LI ; Lifeng WU ; Guirong ZENG ; Zhengang SHI ; Xiangzhong YUAN ; Yongxing XU ; Miaohong ZHANG
Journal of Chinese Physician 2018;20(10):1487-1490
Objective To study the protective effect of shenfu injection on cerebral ischemia reperfusion injury in rats.Methods 120 male Sprague Dawley (SD) rats(320-350 g) were randomly divided into sham operation group,model control group,Nimodipine injection group,low,medium and high dose group of shenfu injection according to gender weight.20 males in each group were given medicine once a day for 7 days before operation.The cerebral ischemia model was established by thread embolization after 5 days of administration.In the sham operation group,the other operations were the same as those in the model group except for carotid artery ligation and thread insertion.After 24 hours of perfusion,the neurological score,abdominal aorta blood flow,malondialdehyde (MDA),superoxide dismutase (SOD) and glutathione (GHS) levels in brain tissues were measured.Triphenyltetrazolium chloride (TTC) staining was used to calculate the area of cerebral infarction and pathological examination of brain tissues.Results Compared with the model control group,the middle and high dosage of shenfu injection could obviously improve the nerve function and increase the percentage of cerebral infarction area (P < 0.05);the high dosage group of shenfu injection could obviously decrease the whole blood viscosity (P < 0.01);the middle and high dosage of shenfu injection could obviously reduce the level of MDA in rat brain tissue (P < 0.01) while increasing the levels of SOD and GSH (P <0.01),finally could significantly improve the pathological changes of brain tissues such as mild swelling of nerve fibers,mild neuronal degeneration,inflammatory interstitial edema and inflammation.Conclusions Shenfu injection has obvious protective effect on cerebral ischemia reperfusion model in rats.
10.Clinical Observation of Bu Shen Tiao Qi Needling for Perimenopausal Syndrome
Guirong XIAO ; Kaiyang WANG ; Qun WU
Shanghai Journal of Acupuncture and Moxibustion 2017;36(2):157-161
Objective To observe the clinical efficacy of Bu Shen Tiao Qi(supplementing the kidney and regulating qi) needling in treating perimenopausal syndrome.Method Fifty patients were randomized into two groups, 25 cases each. The treatment group was intervened by Bu Shen Tiao Qineedling combined with electroacupuncture, while the control group was by shallow needling plus sham electroacupuncture. Kupperman Index (KI) wasobserved respectively before treatment, after 2-week and 4-week treatment, and in the 4-week follow-up study. The differences of scores and improvements of the 13 symptoms listed in KI were calculated.Result The total effective rate was 92.0% in the treatment group versus 44.0% in the control group; in the treatment group, the KI scores after 2-week treatment and in the 4-week follow-up study were significantly different from that before treatment (P<0.05), and a more significant difference was found after 4-week treatment (P<0.01); the between-group differences were statistically significant in comparing KI (P<0.05).Conclusion Bu Shen Tiao Qineedling can produce a satisfactory efficacy in treating perimenopausal syndrome.


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