Epidemiological analysis of new cases of cysticercosis in Dali Prefecture, Yunnan Province from 2014 to 2017 / 中国血吸虫病防治杂志

Objective To understand the basic information and epidemic characteristics of new cases of cysticercosis in Dali Prefecture, Yunnan Province, so as to provide the evidence for formulating the prevention and control strategy of cysticercosis. Methods The data of inpatients in the Dali Parasitic Disease Prevention and Control Center from 2014 to 2017 were collected and the eligible data of new cases of cysticercosis were analyzed by the epidemiological method. Results There were 1 552 patients with cysticercosis, including 549 new cases of cysticercosis. Among the new cysticercosis patients, most were neurocysticer-cosis cases (484 / 549, 88.16%). The symptoms included epilepsy and headache (51.73%), headache (40.98%), and dizziness (18.76%). The new cysticercosis patients were mainly middle-aged male farmers of Bai nationality, and they were distributed in all counties (cities) of Dali Prefecture, especially in Eryuan County (26.78%), and Dali City (19.49%). The annual incidence rate was 4.423/105 in 2014, 3.837/105 in 2015, 3.765/105 in 2016, and 3.442/105 in 2017, and there was no significance among the different years’incidence ( χ2 = 4.595, P > 0.05). Conclusion Dali Prefecture is still an endemic area of cysticercosis. Therefore, the monitoring, prevention and control of the disease should be strengthened.

Epidemiological analysis of new cases of cysticercosis in Dali Prefecture, Yunnan Province from 2014 to 2017 / 中国血吸虫病防治杂志

Objective To understand the basic information and epidemic characteristics of new cases of cysticercosis in Dali Prefecture, Yunnan Province, so as to provide the evidence for formulating the prevention and control strategy of cysticercosis. Methods The data of inpatients in the Dali Parasitic Disease Prevention and Control Center from 2014 to 2017 were collected and the eligible data of new cases of cysticercosis were analyzed by the epidemiological method. Results There were 1 552 patients with cysticercosis, including 549 new cases of cysticercosis. Among the new cysticercosis patients, most were neurocysticer-cosis cases (484 / 549, 88.16%). The symptoms included epilepsy and headache (51.73%), headache (40.98%), and dizziness (18.76%). The new cysticercosis patients were mainly middle-aged male farmers of Bai nationality, and they were distributed in all counties (cities) of Dali Prefecture, especially in Eryuan County (26.78%), and Dali City (19.49%). The annual incidence rate was 4.423/105 in 2014, 3.837/105 in 2015, 3.765/105 in 2016, and 3.442/105 in 2017, and there was no significance among the different years’incidence ( χ2 = 4.595, P > 0.05). Conclusion Dali Prefecture is still an endemic area of cysticercosis. Therefore, the monitoring, prevention and control of the disease should be strengthened.

Current status and research progress of cysticercosis / 中国血吸虫病防治杂志

Cysticercosis refers to a parasitic infection caused by the larvae of pork tapeworm Taenia solium.It is a parasitic zoonosis and listed by the World Health Organization(WHO)as one of the neglected tropical diseases.Cysticercosis is spread-ing all over the world through globalization and it mainly epidemic in developing countries.In the southwest and minority nation-ality areas of China,as a result of the low level of medical and health care,and the unchangeable diet custom,there are still many cases of cysticercosis,which is manifested as a local high prevalence.Neuroimaging is the preferred method for cysticerco-sis diagnosis,and by using CT and MRI scans it is possible to visualise the infecting cysticerci and assess their number and loca-tion within the central nervous system(CNS).The immunological assay is also required in the diagnosis.At present,the preven-tion and control of cysticercosis is still relatively weak.In this paper,the current status and research progress of cysticercosis are reviewed,and further suggestions on the prevention and control of cysticercosis are put forward.

Design and implementation of field questionnaire survey system of taeniasis/cysticercosis / 中国血吸虫病防治杂志

A taeniasis/cysticercosis information management system was designed to achieve the dynamic monitoring of the epidemic situation of taeniasis/cysticercosis and improve the intelligence level of disease information management.The system in-cludes three layer structures(application layer,technical core layer,and data storage layer)and designs a datum transmission and remote communication system of traffic information tube in Browser/Server architecture.The system is believed to promote disease datum collection.Additionally,the system may provide the standardized data for convenience of datum analysis.

Effect of platelet-activating factor on cell proliferation & NF-kappaB activation in airway smooth muscle cells in rats.

BACKGROUND & OBJECTIVE: Despite the established pro-inflammatory actions of platelet activating factor (PAF) observed on chronic obstructive pulmonary disease (COPD), its action on airway remodeling has been still unclear. It has been reported that nuclear factor-kappa B (NF-kappaB) activity is necessary for ASMC proliferation. Further, PAF has been identified as the proximal inducer of NF-kappaB. The present study was thus aimed to investigate the effect of PAF on airway smooth muscle cells (ASMC) proliferation and to evaluate the potential role of NF-kappaB in this regulation. METHODS: Healthy male Sprague-Dowley rats of 6-8 wk age were used for obtaining ASMCs. 3-(4,5- dimethylthiazole-2-yl)-2,5-diphenyltetrazolium-bromide (MTT) assay was to investigate the effects of PAF on ASMC proliferation and to confirm its optimum concentration for action. Additionally, cell proliferation was also examined using cell cycle assay by flow cytometry and immunocytochemical staining for proliferating cell nuclear antigen (PCNA). And NF-kappaB DNA-binding activity was assayed by electrophoretic mobility shift assay (EMSA). RESULTS: PAF stimulated ASMC proliferation with its peak at 100 nM. At this optimum concentration, PAF significantly increased the cell proliferation index (PI) and the PCNA-positive rate in the ASMCs, as well as NF-kappaB DNA- binding activity. Whereas, 20 mM N-acetylcysteine (NAC) pre-treatment effectively blocked all of these events. INTERPRETATION & CONCLUSION: The present findings demonstrated that PAF could promote ASMC proliferation, suggesting its potential involvement in airway remodeling. Our study also suggested the promising action of 20 mM NAC on the alleviation of airway remodeling due to direct inhibition of ASMC proliferation. The involved mechanism would be relevant to the change of NF-kappaB activation in ASMCs.

Construction of antisense recombinant adenoviral vector for c-myc and its antiproliferative effect on rat lymphocytes / 中国应用生理学杂志

<p><b>AIM</b>To observe the antiproliferative effect of antisense recombinant adenoviral vector for c-myc on rat thymus lymphocytes.</p><p><b>METHODS</b>Antisense and sense bacterial plasmids for c-myc were constructed. Bacterial plasmids and El detected adenoviral plasmid were cotransfected into 293 cells. Recombinant adenoviral vectors were obtained after cotransfection. The antiproliferative effects were assayed by MTS. The expression of c-myc mRNA was detected by RT-PCR.</p><p><b>RESULTS</b>The results showed that antisense recombinant adenoviral vector for c-myc could inhibit rat thymus lymphocytes proliferation. The expression of c-myc mRNA was decreased after antisense recombinant adenoviral vector for c-myc was transfected into cells.</p><p><b>CONCLUSION</b>Recombinant antisense adenoviral vector for c-myc could inhibit rat thymus lymphocytes proliferation.</p>