5.Risks of and response to cluster outbreak of imported malaria during malaria post-elimination era in China
ZHANG Li ; YIN Jian-hai ; XIA Zhi-gui
China Tropical Medicine 2023;23(6):585-
Abstract: Objective To analyze the recent cluster outbreaks of imported malaria and explore the risks, challenges and countermeasures for dealing with such events during malaria post-elimination era of malaria, and to provide reference for effectively addressing the risks and consolidating the achievements of malaria elimination. Methods The individual malaria case data from "The Information System for Infectious Disease Surveillance" and "The Information System For Parasitic Diseases Prevention And Control" were collected,and the diagnosis classification, infection source, time and space distribution of cases were analyzed. Results From January 1 to August 11, 2022, a total of 429 malaria cases were reported nationwide, an 18.9% decrease compared to the same period last year (529 cases), all of which were imported cases. The overall weekly trend of the outbreak remained stable, but since Week 31 (July 25-31), there has been a significant increase in the number of cases, with a peak on August 5. From July 25 to August 11, 2022, a total of 162 malaria cases were reported nationwide, up 315.4% from 39 cases in the same period last year, accounting for 37.8% of the total cases up to August 11, 2022. The main source of imported infections was Guinea (95 cases, 58.6%), with most cases reported in Longgang District, Shenzhen City, Guangdong Province (30 cases), Shilin County, Kunming City, Yunnan Province (21 cases), Chaoyang District, Beijing (11 cases), and Xiaoshan District, Hangzhou City, Zhejiang Province (7 cases). Conclusions Due to the concentration of returnees to China, several entry port cities simultaneously experienced cluster outbreaks of imported malaria, which brought immense pressure and challenges to local medical and health institutions. Health facilities at all levels need to maintain high vigilance and sensitivity, be well prepared, and avoid death and secondary transmission caused by imported cases.
6.Evaluation of renal function and pathologica changes in patients with lupus nephritis by ~(99)Tc~m-DTPA renal dynamic imaging
Xian-jun, LI ; Gui-zhi, LI ; Jian-mei, SUN ; Zhi-hua, ZHAO ; Feng-qi, LI ; Ming, LI
Chinese Journal of Nuclear Medicine 2010;30(1):35-37
Objective To analyze the relation between ~(99)Tc~m-DTPA renal dynamic imaging and pathological changes in patients with lupus nephritis (LN).Methods Ten normal control and 29 patients with LN underwent ~(99)Tc~m-DTPA renal dynamic imaging.The LN patients were divided into two groups:silent LN (SLN) group,18 patients;and obvious LN (OLN) group,11 patients.For each case,glomerular filtration rate (GFR),peak time (t_p),half excretion time (t_(1/2)) and the excretion rate at 20 min (R_(20)) were calculated.Assessment of renal function on the scintigraphic images was evaluated by nuclear medicine physicians.The t-test,Fisher'exact probability and R×C association were used for data analysis.Results There were significant differences between normal people and two goups of LN in tp(t=5.3,9.3,both P<0.05),t_(1/2)(t=6.9,12.0,both P<0.05)and R_(20)(t=10.1,12.1,both P<0.05).As to GFR,there was significant decrease in OLN patients(t=4.1,P<0.05),but not in SLN patients(t=1.7,P>0.05).Diagnoses of renal function by renal dynamic imaging were compared with the renal pathological changes (r=0.2273,P<0.05).Conclusions ~(99)Tc~m-DTPA renal dynamic imaging is useful for evaluation of the early stage renal function for LN patients and to diagnose LN patients with no symptom of renal impairment.It may help to assess the degree of renal parenchymal damage while obviating the need for renal biopsy in these patients.
7.Chromosomal localization of primary gout susceptibility gene in a Chinese pedigree
Chang-Gui LI ; Ying CHEN ; Chao XU ; Zhi-Min MIAO ; Sheng-Li YAN ; Huai-Dong SONG
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Objective To determine chromosomal localization of the primary gout susceptibility gene in a pedigree.Methods The clinical data and the peripheral blood samples were collected in the pedigree members and the genomic DNA was extracted from peripheral blood.A genome-wide screening was performed using 400 micro-satellite DNA markers in this family,and linkage analysis was used to determine the chromosomal location of the primary gout susceptibility gene.Results Linkage analysis showed that the maximum LOD score reached 1.50 at marker D4S1572 (at recombination fraction?=0.00).Conclusion Since D4S1572 is localized at 4q25,the primary gout susceptibility gene of this pedigree is localized at 4q25.
8.Changes of Serum Platelet Activating Factor,Thrombomodulin in Neonates with Meconium Aspiration Syndrome
shu-fang, LI ; cui-qing, LIU ; xiu-ling, TAN ; gui-xia, LI ; zhi-yun, ZHOU
Journal of Applied Clinical Pediatrics 2006;0(14):-
Objective To detect levels of serum platelet activating factor(PAF),thrombomodulin(TM) and white blood cell(WBC),platelet count(PLT) in neonates with meconium aspiration syndrome(MAS),and observe changes of mediators of inflammation and function of endotheliocute.Methods All cases were taken vein blood in 24 h and 72-96 h after birth.Surm PAF and TM were detected by EILSA technique,at the same time,blood cell counts were determined.Results PAF and WBC in neonates with MAS increased,which were relevant to the patients′ condition.TM of neonates with MAS increased significantly,especially in 72-96 h after birth and(aggrava)-ted with the patients′ condition.Conclusion Neonates with MAS have inflammatory reaction and injured endotheliocyte,which are(inte)-raction.
9.Advances in studies on chemical compositions and pharmacological activities of Arnebiae Radix.
Zhi-lai ZHAN ; Jun HU ; Tan LIU ; Li-ping KANG ; Tie-gui NAN ; Lan-ping GUO
China Journal of Chinese Materia Medica 2015;40(21):4127-4135
This article mainly summarise the results of the chemical compositions and their pharmacological activities of Arnebiae Radix since 1966. The chemistry components isolated from Arnebiae Radix are mainly naphthoquinone, monoterpene phenol and quinone, phenolic acids and their salts, alkaloids, aliphatic and esters. Pharmacological results showed that the chemical compositions and the extracts of Arnebiae Radix have antibacterial, anti-inflammatory, anti-viral, hepatoprotection, antioxidant, anti-tumor and immune function and other activities. This article hopefully to provide a reference for further research, development and utilization of Arnebiae Radix.
Animals
;
Boraginaceae
;
chemistry
;
Drugs, Chinese Herbal
;
chemistry
;
pharmacology
;
Humans
;
Molecular Structure
;
Plant Roots
;
chemistry
10.UBE2B gene and male infertility: an update.
Qiang ZHANG ; Li-Sha MOU ; Yao-Ting GUI ; Zhi-Ming CAI
National Journal of Andrology 2014;20(4):367-371
Male infertility is a worldwide problem, and about 15% of the cases are associated with spermatogenesis-related gene mutation. The mammalian gene UBE2B is the homolog of the RAD6 gene of yeast, belonging to the ubiquitin proteasome system and playing an important role in spermatogenesis. Mice lacking the UBE2B gene are infertile, with reduced sperm motility, increased morphologically abnormal sperm, and inhibited meiosis of spermatogonia. Accumulated evidence shows that UBE2B gene mutants and single nucleotide polymorphisms are associated with male infertility. This article reviews the relation between the UBE2B gene and male infertility, offering some theoretical evidence for the diagnosis and treatment of male infertility.
Animals
;
Asthenozoospermia
;
genetics
;
Humans
;
Infertility, Male
;
genetics
;
Male
;
Meiosis
;
Mice
;
Mutation
;
Polymorphism, Single Nucleotide
;
Spermatogenesis
;
genetics
;
Ubiquitin-Conjugating Enzymes
;
genetics