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2001 Vol. 17, No. 3

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2001, 17(3): 193-195. doi: 10.11847/zgggws2001-17-03-01
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Environmental Cadmium Pollution and the Effect on Population Health
LI Ji-qing
2001, 17(3): 196-198. doi: 10.11847/zgggws2001-17-03-02
Abstract(1105)
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ObjectivesTo compare the change trend on health effect of environment Cd-pollution from certain smeltery past 15 years,and also to offer evaluation basis of Cd-pollution change some years later due to the factory extension,status of certain smeltery environmental Cd-pollution and its effect on health were investigated.MethodsSelecting the same areas as last investigation,the Cd concentration of rice,vegetable,drinking water and women's urinary Cd,beta(2)-microglobulin(β2-M),creatinine(cr),as well as N-acetyl-beta-D-glucosaminidase(NAG)activity in both polluted and control areas were detected and compared with last investigated information.ResultsThe geometric means of rice Cd(dry weight),vegetable Cd(wet weight),drinking water Cd,urinary Cd,β2-M and NAG are 1.75mg/kg,0.27mg/kg, 0.0008mg/L,13.34μg/g·cr,185.39μg/g·cr,5.80U/g·cr in the polluted area and 0.46mg/kg,0.08mg/kg,0.001mg/L,2.27μg/g·cr,136.57μg/g·cr,4.06U/g·cr in the control area respectively.Difference of the rice Cd,vegetable Cd and urinary Cd between polluted and control areas was statistically significant(P<0.01).The abnormity rate of the urinary Cdβ, 2-M,NAG and all of them are significantly higher in the polluted area(37.63%、19.35%、18.28% and 51.6% respectively)than in the control(7.23%、3.61%、7.23% and 15.7% respectively)(P=0.000~0.013).The mean value and the abnormity rate of urinary Cd in the polluted area in present investigation(23.80μg/L and 44.09% respectively)are twice in last investigation(12.06μg/L and 22.52% respectively)(P<=0.01.or.P=0.022).Three chronic early patients were diagnosed due to Cd exposure in the polluted area.ConclusionsThe results suggest that the polluted area as well as inhabitants living in polluted area have been affected continually by certain smeltery environmental cadmium pollution,also there is unceasing accumulating and aggravating trend of the affection.But Cd-pollution from certain smeltery has not caused adverse chronic early health effects on inhabitants living in polluted area according to the information of the present investigation.
2001, 17(3): 198-198. doi: 10.11847/zgggws2001-17-03-03
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The Construction of Enterohaemorrhagic E.Coli O157:H7 DNA Bank
LI Wen-quan
2001, 17(3): 199-200. doi: 10.11847/zgggws2001-17-03-04
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ObjectivesTo construct EHEC O157:H7 DNA bank forth screening of patho genicity island LEE.MethodsChromosomal DNA of Enterohaemorrhagic E.Coli O157:H7 was extracted and digested with Xmal.Then it was ligated to pJB8X and packed with Kphages.The products of package were used to infect E.coli DH5α and the capacity of DNA bank was identified.ResultsThe content of the bank was about 700 clones,which was larger than that of the theo retical value.ConclusionThe bank has been constructed successfully for screening any fragment you want.
Studies on Ticks Control in Hill Areas in Jiangsu Province
SHI Jian-feng
2001, 17(3): 201-202. doi: 10.11847/zgggws2001-17-03-05
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ObjectivesTo reveal the methods of ticks control in hill areas.MethodsSpraying chlorpyrifos and high-effectcyper methrin in mountains and animal pens with high ticks population.Observe the effect of ticks control Deet was used bo th in lab and on the spot to carry on the test of getting rid of ticks.Different effects of protection between ticks control by single physical method and using drug for ticks control on the spot were compared.ResultsSpray of 0.5% chlorpyrifos and 0.045% higheffect-cypermethr in can kill ticks and be effective for more than 30 days on the spot and in animal pens;Spray the same drug in animal bodys and animal pens can kill ticks in 24 hours;Effects of ticks control by drugs can last 4 hours in lab and 3 hours on the spot.Effects of ticks control by physical methods,for example tying up trousers and cuffs,were notideal.
2001, 17(3): 202-202. doi: 10.11847/zgggws2001-17-03-06
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Result Analysis of Neutralization Antibody against Measles Virus of the Health People was Detected with Measles Virus Incidence in the Liaoning Province in 1999
SUN Ying-jie
2001, 17(3): 203-204. doi: 10.11847/zgggws2001-17-03-07
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ObjectiveTo know neutr alization antibody level ag ainst measles virus(MV)of health people in the Liaoning province.Methods693 serum samples of different age gr oups were collected in 14 counties and districts in 6 areas of the Liaoning pr ovince in 1999.Neutralization antibody was detected by cell micro culture using B95A cell.ResultsThe results indicated that positive rate was 94% in the 2~4 and 20~25 years old groups and in other groups was more than 96%,but GMT was lower in the 2~4 years old group,lowest in 6~8 and 9~11 years old groups.Which conformed to the measles incidence in 1999,the incidence was the highest in the 6~8 and 9~11 years old groups.ConclusionIt points out that children of 2 and 5 years old would be vaccinated by MV vaccine again in order to increase antibody against MV.It is best for children who are unden 14 years old being vaccinated again every 5~6 years if possiblee,because measles incidence was 0.6/100,000 in the 13~15 years old group in 1999 in Liaoning province.
2001, 17(3): 204-204. doi: 10.11847/zgggws2001-17-03-08
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Effects of Air Pollution on Respiratory Tract Microecosystem
XIAO Chun-ling
2001, 17(3): 205-206. doi: 10.11847/zgggws2001-17-03-09
Abstract(1252)
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ObjectiveTo approach the effects of air pollution on respiratory tract flora in order to provide scientific basis for improving existent environment and preventing diseases.MethodsChildren aged 6~8 years from severe and mild pollution areas without occupational exposure and administering antibiotics in the latest three months were selected and determined qualitatively for their oral-pharynx flora.ResultsOral-pharynx flora were greatly affected by external environment.The density of children's oralpharyngeus flora was markedly higher in the severe area than that in the mild one(P<0.01).The ratio of aerobes and anaerobes was obviously increased(P<0.01),and the detecting rate of pneumoocci was higher,However it was lower in α-streptococci (P<0.05).ConclusionAir pollution markedly influenced the field planting of flora in respiratory tract.It was an imponant factor for imbalance of microecosystem and the increasing incidence of reapiratory diseases.
Distribution of the Elders of Yunnan Province in the 1990s
LI Yan
2001, 17(3): 207-208. doi: 10.11847/zgggws2001-17-03-10
Abstract(1048)
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ObjectivesThis study was to understand the distribution of the elderly of Yunnan Province in order to provide scientific basis for the policy associating with senile health care.MethodsThe data of the fourth census in 1990 and sampling investigation of population in 1995 were used to obtain the elderly coefficient and long evity propor tion,and abridged life table was applied to work out expectation life.ResultsIn 1990,the elderly coeffcient was 7.7.The counties of population aging were economically advantaged relatively.The expectation life of the whole province was 60.4 years of age(58.3 for males and 61.3 for females).Hui people had the longest expectation life among the 26 ethnic groups of the province.The region with the longest expectation life had the lowest infant mortality.The proportion of the elderly at 100 years of age and over was 0.71/100000 in the province.Minor ities had higher proportions than Han people,with Dulong minority ranking the highest(72.21/100000).About 60% of the elderly at 100 years of age and over were lived in the border areas with higher percentages of forest cover.ConclusionExcept for Hui minority,Han people had the longerexpectation life than minor ities,however the elderly at the age of 100 and over were mainly distributed in the minority border areas with higher percentages of forest cover.These findings suggest that nature green food and the harmonious development between human being and nature are good for longevity.
A Matched Case-control Study on Risk Factors of Bacteriemia
XU Neng-feng
2001, 17(3): 209-210. doi: 10.11847/zgggws2001-17-03-11
Abstract(1401)
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ObjectiveThis study aimed at exploring the risk factors for bacter iemia.MethodsA 1:1 matched case-control study with 125 pairs on risk factors of bacter iemia was carried out in Fuzhou city in 1999.The available data were analyzed by Chisquare test and multiple logistic regression model.ResultsChisquare test showed that bacteriemia was significantly associated with long-time hospitalization,expose to intensive care unit,anemia,arteriovenous catheter,the other invasive diagnosis and treatment procedures,transfusion,unsuitable application of antibiotics, urinary catheter,application of immunoglobulin,and low albumin.The multivariable conditional logistic regression analysis showed that bacter iemia was significantly associated with long-time in hospitalization(with OR of 11.2,P<0.0001),arteriovenous catheter (with OR of 6.2,P<0.05),anemia(with OR of 6.0,P<0.0001),expose to intensive care unit(with OR of 3.5,P<0.01).ConclusionIt suggests that occurence of bacteriemia may correlate to long-time in hospitalization,arteriovenous catheter, anemia and expose to intensive care unit.
The Water Quality Pollution Research about the Yellow River and the Feng River System before the Yellow River Diversion Works
YIN Yu-lan
2001, 17(3): 211-212. doi: 10.11847/zgggws2001-17-03-12
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ObjectiveWe carried out water quality surveil-lance and research for the Yellow river and Feng river system.ResultsAccording to 《The standard of ground water enviornmental quality(GB 3838-88)》6 to evaluate the water system quality,the tested result shows that 19 indexes accord with water quality standerd-typeⅢ.Some indexes eg.NII3-N,NII2-N,petroleum, Fe,Mn,etc exceed the water quality standard typeⅢ.Observed 8 times surveillance results at every surveillance spots,the NH3-N in the yellow river exceed 5.90 times than that of standard 4 times, the higest concentrationis 1.38 mg/L.NO2-N does 0.67 times 2 times,the higest concentration is 0.22 mg/l.The petroleum does 10.40 times 5 times,the higest concentration is 0.57 mg/l.The above indexes exceed 0.05~111.5 times than that of standard on the surveillace spots of the branches of the Feng river.ConclusionThe water qualities of the Yellow river and Feng river are polluted seriously.As aliving driking water,the water should be carried out the living driking standard(GB 5750-85)and get rid of the pollution to supply living water to the citizen.
2001, 17(3): 212-212. doi: 10.11847/zgggws2001-17-03-13
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Study on the Relation between Heat Shock Proteins and Heat Stress of Marcher with Load in Dry-heat Desert
LIU Bing
2001, 17(3): 213-214. doi: 10.11847/zgggws2001-17-03-14
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ObjectivesTo explore the relation between heat shock proteins and heat stress of men in dry-heat desert.MethodThe plasma HSP70 asnd HSP27,heart beat,rectal temperatrure and body heat storage index(BHSI)of 57 marchers and 14 controls were detected.ResultsWith 15kg at both 3.5km/h and 5.0km/h,the plasma HSP27 in the marching groups were much more than the control(P<0.05);and the plasma HSP70 in the marching groups were slightly over the control(P>0.05);the heart beat in marching groups were more than the control(P<0.05).B HSI is much more than the control except that B HSI in the groups marching for 1 and 2 hours at 3.5km/h.were much less than the control.ConclusionsThere is a close relation between HSP27 and heat stress,and no relation between HSP70 and heat stress with load.Therefore,HSP27 is better than HSP70 in the monitor of heat stress.It is within 2 hours that the march goes at 5.0km/h.With 15kg in dry-heat desert.
Case-Control Study on the Risk Factors of Glioma in the Northern China
LIU Xiao-qian
2001, 17(3): 215-216. doi: 10.11847/zgggws2001-17-03-15
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ObjectiveIn order to explore the risk factors of glioma.MethodsWe conducted the 1:2 case-control studies with the conditional logistic regression,98 cases and 196 controls ware investigated with standard questionnaires.ResultsThe results of invariable analysis showed that smoking period over 30 years,history of head trauma,lead exposure,X-ray and family history of tumor have relationship with glioma development,and the results of multi-variable analysis showed that the X-ray,history of head trauma and family history of tumor have close relationship with the development of glioma.ConclusionThe prevention for the Xray damage and trauma should be paid attention,and all the people who have tumor family history should be screened in time.
2001, 17(3): 216-216. doi: 10.11847/zgggws2001-17-03-16
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Long-term Effect of Artificial Fiber Complexes on Liver Structure and Gastrointestinal Function in Hypercholesterlomic Rats
YANG yan
2001, 17(3): 217-219. doi: 10.11847/zgggws2001-17-03-17
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ObjectivesThis study investigated the long-term effect of artificial fiber complexes(AFC)on liver structure and gastrointestinal function in hypercholesterolemic rats.MethodsMale and female weanling SDstrain rats(80~100g)were divided into five groups,twelve rats per group.As the control groups, Group A and B were fed either the normal diet or high-cholesterol diet.Gr oup C.D.and E were given one of the diets incorpo rated AFC at the differ ent level of 5%、10% or 20% respectively.The experiment lasted three months.ResultsAFC affect the feed intake of the experimental rat;20% of AFC could raised fecal weight,but 5%.10% of AFC could lower it;20% of AFC could significantly raise the weight of small intestine wall,but 5%.10% of AFC could lower small intestine wall wegltt.All level of AFC significantly lowered liver weight compared with high-cholesterol group,and the weight was positively correlated with AFC levels in diets;20% AFC elevated activity of plasma GPT and GOT; Cloudy swelling and fatty degeneration of liver cells could be observed in 20% of AFC.Conclusionslong-term intake of AFC at lower levels could be beneficial for and small intestinecs function; on the other hand,higher levels were harmful to ratsc health.
2001, 17(3): 219-219. doi: 10.11847/zgggws2001-17-03-18
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Sero-type and Clinic Characteritics of the Patients with HFRS in Beijing
ZHANG Xiu-chun
2001, 17(3): 220-220. doi: 10.11847/zgggws2001-17-03-19
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ObjectiveTo understand the sero-type of the patients with HFRS and determine the type of infectious factor in Beijing.MethodsUsing MCPENT to detect the serum of 34 patients with HFRS in acute period and typing them.34 patients live in 12 districts or counties respectively.ResultsMost of the 34 patients have mild or middle clinic symptom 33 of 34 patients are caused by SEO type HV and 1 antibody in serum of typeⅠ and typeⅡ are all 80,so we didn't determine the type of this patient.ConclusionSEO type HV is the main epidemic strain in Beijing.SEO type HV is the infectious factor caused the patients increased.
Experimental Studies on the Hygienics of Aluminum in Tea
GAO Ge, TAO Rui
2001, 17(3): 221-223. doi: 10.11847/zgggws2001-17-03-20
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ObjectiveTo konw the aluminum content in Chinese teas.MethodAluminum content in the different Chinese teas was measured by inductivity coupled plasma-opticald emission spectrometry(ICP-OES).ResultsThe content of aluminum was within limits of 339~1745 mg/kg in tea samples.Also measured the percent of extraction of aluminum of various kind tea leaves infusion,about 80%~90% aluminum of total extraction rate was in the first infusion of tea.Experiments have been proved aluminum in tea infusions mainly exists in inorganic species.The mole ration of fluoride to aluminum in tea infusion was 0.7~1.2,Calculated according to the equilibrium equation of Al3++F-=AlF2+ (K=106.13),95%~99% aluminum is complex compound species as AlF2+ in the infusion.It was calculated that drinking 5g tea infusions daily may supply aluminum about 1/140~1/17 of the provisional tolerable weekly intake(PTWI)dose set by the joint FAO/WHO Expert Committee.ConclusionOn the other hand,the species of AlF2+ in tea infusion is a lower toxicity compound.For these reasons,the hygienic estimation of aluminum in teas is not a dangerous factor for the human health.
Studies on In Vitro Inhibitory Effects of Folic Acid On Human Hepatic Cancer Cell Line
YANG Xiao-shan
2001, 17(3): 224-225. doi: 10.11847/zgggws2001-17-03-21
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ObjectiveTo study the antitumor activities of folic acid,Folic acid are dealed with human hepatic cancer cell line SMMC-7721 in vitro.MethodsBy means of there approaches as follows:cell proliferation curve analysis,M TT assay and cell cycle analysis by FCM.ResultsThat after treatment with 13.5×10-5 mol/L,40.5×10-5 mol/L folic acid selectively inhibited the activity and function of SMMC-7721.There were apoptotic peaks in cell cycle analysis by FCM and apoptosis rate reached 27.1%.ConclusionThe effects of folic acid on human umbilical vein end othelial cells were slightly.
Studies on Cadmium Induced Immunotoxicity to Carassius ADuratus
DONG Shu-yun
2001, 17(3): 226-228. doi: 10.11847/zgggws2001-17-03-22
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ObjectiveIn order to study the effects of cadmium in water on immunity of fish.MethodCarassius auratus was selected as the target fish and was raised in water with different concentrations of CdCl2.On the 10th day,fish were killed and weighted,immune indexes,including total blood leucocyte numbers,serum lysozyme level,phagocytic rate and phagoindex of macrophage in pronephros,were determined.ResultsThe results showed that,total blood leucocy te numbers of fish in low concentration of Cd(2.5μg/L)was significantly higher than that of control fish,while no difference existed among Cd 5.0μg/L,Cd 10.0μg/L and control.With the growth of cadmium concentration, there is an increasing tendency in serum lysozyme level,and lysozyme of fish in high dose of Cd(10.0μg/L)was significant higher than that of control.Besides,there were no differences in phago cytic rate and phagoindex of macrophage in pronephors among various groups.ConclusionOur research indicated that Cd can induce immunotoxicity to Carassius auratus,research on effect of exnobiotics on fish immune function can be used as an effective biomarker in assessing water pollution.
2001, 17(3): 228-228. doi: 10.11847/zgggws2001-17-03-23
Abstract(2019)
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The Effects of HEPS on the Humoral and Cellular Immune Functions in Mice
CHENG Jing
2001, 17(3): 229-230. doi: 10.11847/zgggws2001-17-03-24
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ObjectiveTo study the effects of hericium erinaceus polysacchrides(HEPS)on the cellular and humoral immune function in mice.MethodsMice were given HEPS orally at dose 100mg/kg、200mg/kg、400mg/kg,Grifolan 100mg/kg(as positive control),the content of hemolysin was determined using colorimetric method and the effect on the reticuloendothelial system was tested with carbon clearance test in the 10th day after treatment.ResultsAt the three doses HEPS could significantly increase the production of hemolysin,the values of HC50 were increased to 119.51、144.81、120.49 respectively,and the differences(compared to the control group 70.03)were significant.(P<0.01), HEPS could also increase the function of reticuloendothelial system in mice,the values of K in carbon clearance test were increased to 0.063、0.076、0.063 respectively,the differences(compared to the control group 0.035)were significant(P<0.01).ConclusionHEPS could increase the humoral and cellular immune functions in mice.200mg/kg HEPS showed the best effect,the effect of 400mg/kg group was no better than that of 200mg/kg group.
2001, 17(3): 231-232. doi: 10.11847/zgggws2001-17-03-25
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2001, 17(3): 232-232. doi: 10.11847/zgggws2001-17-03-26
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Effect of Zinc Deficiency on the Concentrations of Acetylcholine and Serotonin in Blood and Brain of Rats
LIU Yan-qiang
2001, 17(3): 233-234. doi: 10.11847/zgggws2001-17-03-27
Abstract(1435)
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ObjectiveThe effects of zinc deficiency on the concentrations of acety lcholine(ACh)and serotonin(5-HT)in blood and brain of rats were studyed in present experiment.MethodsAbout 85g Wistar rats were alloted to zinc dificiency group (ZD),fed zinc deficient diet;pair-fed group(PF),fed adequate zinc diet;and zinc deficiency and zinc supplementation group (ZS),fed adequate zinc diet after fed zinc deficiency diet for 21 days.The duration was 35 days.ResultsZinc denciency resulted in the significant increase of blood.Achand 5-HT,and brain 5HT.ConclusionThe results suggested that zinc might change the metabolism of ACh and 5-HT in blood and brain.
2001, 17(3): 234-234. doi: 10.11847/zgggws2001-17-03-28
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Differences of Incident Rates on Notifiable Communicable Diseases between Permanent and Provisional Residents in Shenzhen
ZHANG Shun-xiang
2001, 17(3): 235-237. doi: 10.11847/zgggws2001-17-03-29
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ObjectivesTo explore the influence factors on the notifiable communicable diseases among the provisional population in Shezhen.MethodsAccording to the reporting system of notifiable communicable diseases,the incident rates for the permanent and prov isional residents were calculated and analyzed.ResultsFrom 1980 to 1999,the total incident rate of the communicable diseases was decreased year by year,whereas the decrease of the rate in provisional residents was not significant.As a major infectious disease.Malaria incidence showed two peaks from 1984 to 1999 and there were more cholera cases occurred in the provisional population.The rates of typhoid and paratyphoid fever were not differences between the two residents.The incident rates of dysentery and virus hepatitis in permanent populat ion were higher than that in the pro visional residents.The possible influent factors on the communicable diseases were discussed.ConclusionIt is important that the socioeconomic factors influences on the incidence of the communicable diseases.And in Shenzhen,malaria and cholera should use as index diseases for the surveillance in the provisional and temporary population.
2001, 17(3): 237-237. doi: 10.11847/zgggws2001-17-03-30
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2001, 17(3): 238-238. doi: 10.11847/zgggws2001-17-03-31
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2001, 17(3): 241-242. doi: 10.11847/zgggws2001-17-03-34
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2001, 17(3): 242-242. doi: 10.11847/zgggws2001-17-03-35
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2001, 17(3): 245-246. doi: 10.11847/zgggws2001-17-03-38
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2001, 17(3): 247-248. doi: 10.11847/zgggws2001-17-03-40
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2001, 17(3): 248-248. doi: 10.11847/zgggws2001-17-03-41
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2001, 17(3): 249-250. doi: 10.11847/zgggws2001-17-03-42
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2001, 17(3): 251-251. doi: 10.11847/zgggws2001-17-03-44
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2001, 17(3): 253-254. doi: 10.11847/zgggws2001-17-03-46
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2001, 17(3): 254-254. doi: 10.11847/zgggws2001-17-03-47
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2001, 17(3): 255-256. doi: 10.11847/zgggws2001-17-03-48
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2001, 17(3): 256-256. doi: 10.11847/zgggws2001-17-03-49
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Application of Canonical Correlation to Reproductive Health of Unmarried Youths
GUO Xiu-hua
2001, 17(3): 257-258. doi: 10.11847/zgggws2001-17-03-50
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ObjectiveExploring the factors thathave a close relation with sexual behaviour to ummarried youhts,so that teaching them in reproductive health.MethodsWe formulate a questionnaire about reproductive health among 1600 unmarried youhts.The questionnaire has 83 problems in 5 aspects.In this article,we choose 21 variables and analyze it by means of canonical correlation.ResultsThe male youhts,who have had love affairs, and think that sexual intercourse is rational in the period of love, have a close relation with sexual illusion and sexual intercourse.ConclusionThe unmarried youhts should not love too early.The emphasis of education of reproductive health is male youhts.
2001, 17(3): 259-260. doi: 10.11847/zgggws2001-17-03-51
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2001, 17(3): 260-260. doi: 10.11847/zgggws2001-17-03-52
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2001, 17(3): 261-262. doi: 10.11847/zgggws2001-17-03-53
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2001, 17(3): 263-264. doi: 10.11847/zgggws2001-17-03-55
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2001, 17(3): 264-264. doi: 10.11847/zgggws2001-17-03-56
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2001, 17(3): 265-265. doi: 10.11847/zgggws2001-17-03-57
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Establishment and Application of Immuno-PCR for the Detection of HBsAg
YU Xiao-nan
2001, 17(3): 266-267. doi: 10.11847/zgggws2001-17-03-58
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ObjectiveImmuno-PCR was established.Sensitivity、specifity and repetition were detected in standard of HBV, comparing with ELISA.ResultsThis assay offer a senitivity of 1pg/ml,800 fold more sensitive than conventional ELISA,the positive percentage of ser um HBsAg in 51 cases of HB patients was 17.6% (9/51).ConclusionImmuno-PCR for serum HBsAg is a high specificty、sensitivity and repetition.It is significant in clinical diagnosis treatment and prognosis of HB.
2001, 17(3): 267-267. doi: 10.11847/zgggws2001-17-03-59
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2001, 17(3): 275-276. doi: 10.11847/zgggws2001-17-03-67
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2001, 17(3): 276-276. doi: 10.11847/zgggws2001-17-03-68
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2001, 17(3): 286-286. doi: 10.11847/zgggws2001-17-03-77
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2001, 17(3): 287-287. doi: 10.11847/zgggws2001-17-03-78
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2001, 17(3): 288-288. doi: 10.11847/zgggws2001-17-03-79
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