2.A field epidemiological study on the risk factors of injury caused by typhoon.
Zhen-Yu GONG ; Cheng-Liang CHAI ; Chun-Yu TU ; Jun-Fen LIN ; Yi GAO ; Yin-Wei QIU ; Guang ZENG ; Robert E FONTAINE ; C K LEE ; Fan HE ; Kun CHEN
Chinese Journal of Epidemiology 2006;27(9):773-776
OBJECTIVETo determine the risk factors involved in the typhoon episodes and to put forward and evaluate the intervention measures.
METHODSWe defined a confirmed injury case as: 'a person with fall,scalpel and stab, collision, drowning, injuries and trauma due to flying debris and building collapse, asphyxiation due to entrapment in collapsed buildings by typhoon from 0 am,August 12 to 6 pm, August 14 2004' and a death case as: 'a person with fall, scalpel and stab, collision, drowning, injuries and trauma due to flying debris and building collapse, asphyxiation due to entrapment in collapsed buildings by typhoon from 0 am, August 12 to 12 am, August 18 2004'. We investigated all hospitalized injured cases in ten hospitals and telephoned to those who were not hospitalized and the cases of death. We did case-control study with 1 pair versus 2 cases. 74 cases were selected in ten hospitals. The controls were neighbors of the controls matched by occupation, sex, village, and within 5 years of age without injury in this typhoon. We asked the cases and the controls on their alertness regarding typhoon and what actions taken when typhoon arrived.
RESULTSThere were 392 injury cases in all ten hospitals and 50 death cases. The attack rate of injury was 27.3 per 100 000. The fatal rate was 11.3% with the death rate 3.1 per 100 000. We investigated 209 injury cases and 31 death cases. The number of cases who were injured from 1 to 6 hours before typhoon landing accounted for 64.6% (155) of all cases. The peak of epidemic curve was 4 hours before the landing of typhoon. Data on the analysis of 74 cases and 148 controls revealed that 42% (31) of the cases were outside their homes before and during typhoon compared to 15% (22) of the controls (OR = 3.9, 95% CI: 1.9-7.7). Compared with 20% (30) control persons (OR = 17,95% CI: 4.2-68). 28% (21) cases did not receive the alert of typhoon before it arrived compared with 18% (27) control persons (OR = 3.3, 95% CI:1.3-8.6). 53% (39) of the cases did not pay attention to the alert of typhoon before typhoon arrived.
CONCLUSIONStaying outdoor, not receiving or did not take seriously about the alert of typhoon seemed to be the risk factors of injury by the typhoon episode, suggesting that the government should increase the emergency preparedness and to raise the awareness on risks associated with typhoon.
Cause of Death ; China ; epidemiology ; Cyclonic Storms ; Hospitalization ; Humans ; Risk Factors ; Wounds and Injuries ; epidemiology ; mortality
3.Cardioprotection of Shenfu preparata on cardiac myocytes through cytochrome P450 2J3.
Yong XIAO ; E-mail: GAOYUE@BMI.AC.CN. ; Zeng-chun MA ; Yu-guang WANG ; Hong-ling TAN ; Xiang-ling TANG ; Qian-de LIANG ; Cheng-rong XIAO ; Yue GAO
Journal of Integrative Medicine 2013;11(5):327-336
OBJECTIVETo evaluate whether Shenfu injection (SFI) protects against cardiac myocyte injury induced by Fupian injection (FPI) in vitro.
METHODSH9c2 cells were separately treated with FPI, Renshen injection (RSI) and SFI. Cell viability, lactate dehydrogenase (LDH) release, spontaneous beating rate of primative cardical cells, caspase-3/7 activity, cell apoptosis, and cytochrome P450 2J3 (CYP2J3) mRNA expression were analyzed.
RESULTSThe viability of H9c2 cells treated with SFI (37 and 75 mg/mL) was significantly higher than that of H9c2 cells treated with FPI (25 and 50 mg/mL) (P<0.05, P<0.01, respectively). LDH activity of H9c2 cells treated with SFI (75 mg/mL) was significantly decreased (P<0.01) compared with that of H9c2 cells treated with FPI (50 mg/mL). SFI (150 mg/mL) significantly attenuated FPI (100 mg/mL)-induced spontaneous beating rate decrease in primary myocardial cells after 4-hour treatment. Compared with FPI (12 and 25 mg/mL), SFI (18 and 37 mg/mL) treatment could effectively reverse the change of caspase-3/7 activity (P<0.01 and P<0.01, respectively). Compared with FPI (6 and 25 mg/mL), apoptotic cells decreased significantly (P<0.05, P<0.01, respectively) when H9c2 cells were incubated with SFI (9 and 37 mg/mL). The expression of CYP2J3 mRNA was down-regulated by FPI, while RSI and SFI could up-regulate the expression of CYP2J3 (P<0.01), which suggested the potential mechanism of protection of RSI against cardiac myocyte damage induced by FPI treatment.
CONCLUSIONThese observations indicate that SFI has the potential to exert cardioprotective effects against FPI toxicity. The effect was possibly correlated with the activation of CYP2J3.
Animals ; Apoptosis ; drug effects ; Caspases ; metabolism ; Cell Survival ; drug effects ; Cells, Cultured ; Cytochrome P-450 Enzyme System ; genetics ; physiology ; Drugs, Chinese Herbal ; pharmacology ; L-Lactate Dehydrogenase ; secretion ; Myocytes, Cardiac ; drug effects ; enzymology ; Rats
4.Rotavirus surveillance data from Kunming Children's Hospital, 1998 - 2001.
Li-jie ZHANG ; Zeng-qing DU ; Qing ZHANG ; Hong-yu KANG ; Li-shu ZHENG ; Xiao-mei LIU ; Hua-ping XIE ; Hong-yan YANG ; Yan-chun WANG ; B IVANOFF ; R I GLASS ; J S BRESEE ; X JIANG ; P E KILGORE ; Zhao-yin FANG
Chinese Journal of Epidemiology 2004;25(5):396-399
OBJECTIVETo study the epidemiological status on rotavirus diarrhea in Kunming to improve the rotavirus vaccine immunization program.
METHODSA hospital-based sentinel surveillance program for rotavirus was set up among children less than 5 years old with acute diarrhea in Kunming Children's Hospital. Clinical information and fecal specimens were collected and rotavirus were detected by polyacrylamide gel electrophoresis (PAGE) and/or enzyme linked immunosorbent assay (ELISA). Positive specimens were further serotyped or genotyped by ELISA and/or RT-PCR.
RESULTSDuring the three years of surveillance, 466 specimens were collected. Rotavirus were detected on 246 (52.8%) specimens. 97% of the rotavirus diarrhea cases occurred among children less than 2 years old. There was a peak of admissions for rotavirus diarrhea cases between October and December which accounted for 48% of all the rotavirus hospitalizations each year. Among 204 specimens with G serotyping, the predominant strain was serotype G1 (47.5%) followed by G2 (17.6%), G3 (15.7%), G9 (4.9%) and G4 (1.0%). Mixed infection (2.5%) were rare and 22 specimens (10.8%) remained non-typeable. P genotyping showed P[4], P[8] and P[6] were the most common strains, accounting for 29.3%, 27.6% and 13.8% respectively. P[4]G2 was the most common strain which accounted for 34.1% (14/41) followed by P[8]G1 (29.3%) and P[6]G9 (12.2%). Another 7 uncommon P-G combinations were also identified.
CONCLUSIONRotavirus was the major cause of acute diarrhea in Kunming. An effective rotavirus vaccine for prevention and control of rotavirus diarrhea should be developed.
Child, Preschool ; China ; epidemiology ; Diarrhea ; virology ; Electrophoresis, Polyacrylamide Gel ; Enzyme-Linked Immunosorbent Assay ; Female ; Genotype ; Hospitals, Pediatric ; statistics & numerical data ; Humans ; Infant ; Male ; Reverse Transcriptase Polymerase Chain Reaction ; Rotavirus ; classification ; genetics ; isolation & purification ; Rotavirus Infections ; epidemiology ; Sentinel Surveillance ; Serotyping
5.Expression of LncRNA-MALAT1 in Peripheral Blood of Patients with Acute Myeloid Leukemia Sepsis and Its Clinical Significance.
Shu-Ying ZENG ; Min LYU ; Jin YUAN ; Ying-Chun HU
Journal of Experimental Hematology 2021;29(6):1763-1767
OBJECTIVE:
To analyze the expression of lncRNA-MALAT1 in peripheral blood of patients with acute myeloid leukemia (AML) sepsis and explore its clinical significance.
METHODS:
From March 2018 to March 2019, 95 confirmed AML patients including 43 sepsis infected cases and 52 uninfected cases were selected for treatment in the Department of Oncology and Hematology, The First People's Hospital of Longquanyi District. Their peripheral blood samples were taken as study samples, and the blood samples from 50 healthy people were used as control. RT-qPCR was used to detect lncRNA-MALAT1 expression level in samples from healthy group, uninfected group, and sepsis group. The correlation between lncRNA-MALAT1 expression level and clinical characteristics and prognosis of AML patients with sepsis were analyzed.
RESULTS:
The expression level of lncRNA-MALAT1 in the sepsis group was significantly up-regulated compared with the healthy group and uninfected group (P<0.05), while there was no significant difference between the healthy group and uninfected group (P>0.05). In AML patients with sepsis, the expression of lncRNA-MALAT1 was associated with clinical characteristics such as NCCN risk classification, white blood cell count, hemoglobin and so on. The overall survival rate of high lncRNA-MALAT1 expression group was significantly lower than that of low expression group (χ
CONCLUSION
The up-regulated expression of lncRNA-MALAT1 is closely related to the clinical characteristics and survival rate, and is an independent prognostic factor for AML sepsis patients. LncRNA-MALAT1 is expected to become a new diagnostic marker and therapeutic target for AML sepsis.
Humans
;
Leukemia, Myeloid, Acute
;
Prognosis
;
RNA, Long Noncoding/genetics*
;
Sepsis
;
Survival Rate
8.Discovery of a potent FKBP38 agonist that ameliorates HFD-induced hyperlipidemia
Ping-Ting XIAO ; Zhi-Shen XIE ; Yu-Jia KUANG ; Shi-Yu LIU ; Chun ZENG ; Ping LI ; E-Hu LIU
Acta Pharmaceutica Sinica B 2021;11(11):3542-3552
The mammalian target of rapamycin (mTOR)-sterol regulatory element-binding proteins (SREBPs) signaling promotes lipogenesis. However, mTOR inhibitors also displayed a significant side effect of hyperlipidemia. Thus, it is essential to develop mTOR-specific inhibitors to inhibit lipogenesis. Here, we screened the endogenous inhibitors of mTOR, and identified that FKBP38 as a vital regulator of lipid metabolism. FKBP38 decreased the lipid content
9.Research Progress of Cytokines in the Prognosis of Acute Myeloid Leukemia --Review.
Chun-Yan LIANG ; Zeng-Zheng LI ; Min WANG ; Ya-Jie WANG ; Tong-Hua YANG
Journal of Experimental Hematology 2022;30(6):1922-1926
At present, acute myeloid leukemia (AML) is mainly treated with combination medication, high-dose, and early intensification. The treatment has achieved good results, but the long-term treatment effect is still not satisfactory. Studies have shown that the different levels of cytokine expression in AML patients can help AML risk stratification, search for treatment directions and predict the prognosis. It has been confirmed that the expression of IL-1β, IL-6, TNF-α, and TGF-β1 are increased in AML patients, and they all indicate a poor prognosis. However, IL-8, IFN-γ, and CCL5 have great research value in chemotherapy resistance and improvement of treatment effect. This article reviews the research progress of cytokine biomarkers in the prognosis of AML patients.
Humans
;
Cytokines
;
Leukemia, Myeloid, Acute
10.Effect of γδ T cells on the Proliferation, Apoptosis and Autophagy of Multiple Myeloma Cells.
Lin-Fen TAO ; Bing-Qin YANG ; Zhi-Yong ZENG ; Jian-Ping XU ; Dong-Hong LIN ; Qiu-Chun CHEN ; Jun-Min CHEN
Journal of Experimental Hematology 2022;30(3):797-803
:
AbstractObjective: To investigate the effect of γδ T cells on the proliferation, apoptosis and autophagy of multiple myeloma cells.
METHODS:
Peripheral blood mononuclear cells (PBMNC) were isolated from healthy volunteers, and stimulated with zoledronic acid (Zol) in combination with rhIL-2. Flow cytometry analysis was used to detected the purity of γδ T cells. γδ T cells were collected and co-cultured with RPMI-8226 or U-266 cells at different effector target ratios. The proliferation of RPMI-8226 or U-266 cell lines were detected by CCK-8. Cell cycle and cell apoptosis were detected by flow cytometry and Western blot.The expressions of autophagy-related proteins were detected by Western blot.
RESULTS:
γδ T cells can be expanded in vitro. γδ T cells could inhibit the proliferation of RPMI-8226 or U-266 cells, induced cell cycle arrest and promoted apoptosis in an effector target-dependent manner. In addition, γδ T cells could induce autophagy of myeloma cells, inhibited the expression of autophagy-related PI3K, P-AKT and P-mTOR, while increased the expression of AMPK and Beclin-1.
CONCLUSION
γδ T cells can inhibit the proliferation of RPMI-8226 and U-266 myeloma cells, induce cell cycle arrest, promote apoptosis, and enhance autophagy in vitro. The mechanism may be related to inhibition of PI3K/AKT/mTOR signaling pathway and/or activation of AMPK/Beclin-1 signaling pathway.
AMP-Activated Protein Kinases/pharmacology*
;
Apoptosis
;
Autophagy
;
Beclin-1/pharmacology*
;
Cell Proliferation
;
Humans
;
Leukocytes, Mononuclear/metabolism*
;
Multiple Myeloma/metabolism*
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
T-Lymphocytes
;
TOR Serine-Threonine Kinases/metabolism*