Acute Disease ; Female ; Humans ; Hypertension ; chemically induced ; Middle Aged ; Organophosphate Poisoning ; Pesticides ; poisoning ; Skin Absorption

The self-designed experimental teaching method is introduced in detail in this paper,including the preparative work before class,discussion of experimental designing proposal,and accomplishment of specific experiment and so on.The teaching method innovations on pathophysiology experiment are very helpful to cultivate the students' ability to solve practical problem and lay the foundation to cultivate talented medical science personal.

Present work was designed to quantitatively evaluate the performance of diffusion-weighted magnetic resonance imaging (DWI) in the diagnosis of the presence of metastasis in lymph nodes (LNs).Eligible studies were identified from systematical PubMed and EMBASE searches.Data were extracted.Meta-analyses were performed to generate pooled sensitivity and specificity on the basis of per-node,per-lesion and per-patient,respectively.Fourteen publications (2458 LNs,404 lesions and 334 patients) were eligible.Per-node basis demonstrated the pooled sensitivity and specificity was 0.82 (P＜0.0001) and 0.90 (P＜0.0001),respectively.Per-lesion basis illustrated the pooled sensitivity and specificity was 0.73 (P=-0.0036) and 0.85 (P＜0.0001),respectively.Per-patient basis indicated the pooled sensitivity and specificity was 0.67 (P=0.0909) and 0.86 (P＜0.0001),respectively.In conclusion,DWI has rather a negative predictive value for the diagnosis of LN metastasis presence.The difference of the mean apparent diffusion coefficients between benign and malignant LNs is not yet stable.Therefore,the DWI technique has to be further improved.

OBJECTIVETo study the prevalence of asthma and its correlated factors in Zaozhuang area in 2003, to provide a basic consideration for prevention/treatment and control policy.

METHODS6 points were selected by stratified-clusterd-random sampling with a total of 16,725 persons expected, but only 10,610 subjects investigated.

RESULTSIn this survey, 128 asthma cases were identified with a overall prevalence of 1.21%. The prevalence for children was 2.02%, and for adult was 0.90% with the former significantly higher then the latter (chi(2) = 21.39, P < 0.01). Rates for male and female were 1.08%, 1.32% with a ratio of 1:1.22. For 77.97% of children with asthma. The initiative age of asthma was before 7 years old among children while among 36.23% of the adults, it was before 15 years of age. Correlation analysis showed that upper respiratory tract infection (OR = 17.81, 95% CI: 12.25-25.89), cold air exposure (OR = 3.43, 95% CI: 2.41-4.90), stimulation through cooking and by harmful gases (OR = 2.56, 95% CI: 1.80-3.63), allergic materials (OR = 2.74, 95% CI: 1.80-4.17) were main inducing factors. 65.63% of the asthma cases having had history of allergic disease while 25.78% having had family history with the OR of allergic history and family history as 21.69 vs. 73.96.

CONCLUSIONThe epidemic status of bronchial asthma was serious, with an assumption that asthma cases might have reached the number of 43 thousand in Zaozhuang area.

Adolescent ; Adult ; Aged ; Asthma ; epidemiology ; Child ; Child, Preschool ; China ; epidemiology ; Female ; Humans ; Infant ; Male ; Mass Screening ; Middle Aged ; Prevalence ; Risk Factors

OBJECTIVETo investigate the relationship between lamivudine-resistant mutants of hepatitis B virus (HBV) and serum HBV DNA loading before antiviral therapy.

METHODSThis study involved 106 patients with hepatitis B receiving lamivudine treatment for an average of 32 months (rang 12-48 months). Serum HBV DNA loadings were measured with PCR before and every 4 to 6 months during lamivudine therapy. HBV YMDD mutants were detected using mismatched PCR-restriction fragment length polymorphism (PCR-RFLP) during lamivudine treatment.

RESULTSHBV DNA loading was significantly higher in patients infected with HBV YMDD mutants during lamivudine therapy than those infected with HBV without YMDD mutation.

CONCLUSIONHigh viral loading in hepatitis B patients before treatment is associated with high likeliness of HBV YMDD mutation during lamivudine treatment. HBV DNA loading may be indicative for the occurrence of YMDD mutation during lamivudine therapy.

Antiviral Agents ; pharmacology ; DNA, Viral ; blood ; Drug Resistance, Viral ; genetics ; Female ; Hepatitis B ; blood ; Hepatitis B virus ; drug effects ; genetics ; physiology ; Humans ; Lamivudine ; pharmacology ; Male ; Middle Aged ; Mutation ; Viral Load ; genetics

Objective To explore the expression of HCK gene during the cardiomyocyte differentiation of mouse embryonic stem cells and analyze the role of HCK gene in maintenance of pluripotency of embryonic stem cells.Methods Mouse embryonic stem cells were cultured,then induced to differentiate into cardiomyocytes.Total RNAs were isolated from mouse embryonic stem cells in the differentiation days:0 day(D0),the second day(D2),the fourth day(D4),the sixth day(D6),the eighth day(D8),respectively.The levels of HCK mRNAs were assessed by the method of semi-quantitive reverse transcriptase-polymerase chain reaction(RT-PCR).In the meanwhile,Total proteins were also isolated from mouse embryonic stem cells in the differentiation D0,D2,D4,D6,D8,and the levels of HCK proteins were evaluated by Western-blot.Results HCK mRNAs could be detected in the mouse embryonic stem cells in D0 and D2,however,they were undetectable from D4 to D8.The expression of HCK mRNAs was rapidly down-regulated during cardiomyocyte differentiation of mouse embryonic stem cells.Expression of HCK proteins,which coincided with HCK mRNAs,down-regulated during differentiation and couldn't be detected in D4.Conclusions With the cardiomyocyte differentiation of mouse embryonic stem cells,the expression of HCK in the levels of mRNA and proteins are sharply down-regulated;HCK may play an important role in maintaining the pluripotency of embryonic stem cell.

OBJECTIVETo investigate the effect of moxibustion at Sanyinjiao (SP 6) for uterine contraction pain in labor, and evaluate the safety of the parturient and newborn.

METHODSOne hundred and seventy-four cases of singleton pregnancy and cephalic presentation primipara were single blinded and randomly divided into three groups: observation group (59 cases), placebo treated group (57 cases) and blank group (58 cases). The observation group was treated with moxibustion at Sanyinjiao (SP 6) for 30 min when the uterus cervix openning at 3 cm, the placebo treated group was treated with moxibustion at no acupoint for 30 min and the blank group was treated with routine labor nursing, the uterine contraction pain and the safety of the mother and infant were compared among three groups.

RESULTS1) The uterine contraction pain was tested by Visual Analogue Scale (VAS): the scores of VAS in the observation group were obviously decreased after 15 min and 30 min of moxibustion (both P<0.05), there were no obvious changes of the VAS scores in placebo treated group and the blank group, the scores of VAS in observation group decreased much more obviously than those in the other two groups (all P<0.05); 2) Midwife rating of the uterine contraction pain: after 30 min of moxibustion, the effective rate of labor analgesia was 69.5% (41/59) in observation group, which was higher than that of 45.6% (26/57) in placebo treated group and 43.1% (25/58) in blank group, with significant differences between them (both P<0.05); 3) The postpartum hemorrhage amount of the observation group was obviously lower than those of placebo treated group and blank group (both P<0.05); 4) The Apgar score of newborn was higher in observation group and placebo treated group than that of blank group (both P<0.05).

CONCLUSIONMoxibustion at Sanyinjiao (SP 6) can relieve the uterine contraction pain, and has no side effect to mother and infant, it is one of the safe, effective and simple non-drug analgesia methods.

Acupuncture Points ; Adult ; Female ; Humans ; Labor Pain ; physiopathology ; therapy ; Labor, Obstetric ; Moxibustion ; Pregnancy ; Treatment Outcome ; Uterine Contraction ; Young Adult

OBJECTIVEThis study aimed to explore the scene-trait coping style of military rescuers in Wenchuan earthquake in an effort to provide scientific evidences for mental intervention program for Chinese military personnel.

METHODSBy cluster sampling, a total of 151 military rescuers and 331 control servicemen were administered the military personnel scene-trait coping style scale (MPSTCSS).

RESULTSAll active coping factor scores, and passive coping factor scores of affection, health and economy in the rescuer group were significantly higher than those in control group (P < 0.05). The 21-above age subgroup, the 3-year plus service subgroup, and the officer subgroup had significantly higher active coping factor scores on military tasks, military experience and personal development than those of the 21-below age subgroup, 3-year minus service subgroup and the soldier subgroup, respectively (P < 0.05 or P < 0.01).

CONCLUSIONThe earthquake relief servicemen can cope with stressful situations better than control group by taking active coping style. The officers, servicemen older than 21 years, and servicemen with more service duration than 3 years could usually take active coping style.

Adaptation, Psychological ; Disasters ; Earthquakes ; Humans ; Military Personnel ; psychology ; Stress, Psychological

OBJECTIVETo investigate the clinical effect of Pishen Bingbu Recipe (PBR) in treating patients with sympathetic cervical spondylosis (SCS) of qi-blood deficient syndrome type and its impact on heart rate variability (HRV).

METHODSFifty patients were randomized into the control group and the treatment group equally. Both were treated with mecobalamin, vitamin B1, neurotropin, and occipital - jaw band traction in the sitting posture, but to patients in the treatment group, PBR was given additionally. The course of treatment was 60 days. Therapeutic effect and changes of HRV indexes were observed.

RESULTSAfter treatment, in the treatment group, 5 patients (20%) were clinically cured, treatment was markedly effective in 12 patients (48%), effective in 7 (28%) and ineffective in 1 (4%), while the corresponding data in the control group were 2 (8%), 4 (16%), 18 (72%) and 1 (4%) respectively, demonstrating the efficacy in the treatment group was superior to that in the control group (P <0.05). Before treatment, the HRV indexes in the two groups were insignificantly different respectively (P >0.05). But after treatment, difference between groups was observed in terms of either time domain or frequency domain. Those of time domain were: standard deviation of NN intervals (SDNN, ms) 133.41 +/- 8.61 vs 115.61 +/- 13.49, average standard deviation of 5 min NN intervals (SDANN, ms) 126.90 +/- 9.99 vs 106.20 +/- 8.84, HRV trigonometric index (HRVTI) 35.10 +/- 4.48 vs 25.51 +/- 2.24; and those of frequency domain: low frequency (LF, ms2) 379.90 +/- 159.07 vs 477.70 +/- 396.91 high frequency (HF, ms2) 157.10 +/- 28.18 vs 122.10 +/- 101.90, and LF/HF ratio 2.37 +/- 0.52 vs 4.27 +/- 2.84. All were superior in the treatment group (P < 0.05).

CONCLUSIONPBR shows evidently clinical efficacy on SCS, it can significantly improve the functional activities of sympathetic nerve in patients.

Adult ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Heart Rate ; drug effects ; Humans ; Male ; Middle Aged ; Spondylosis ; drug therapy ; pathology ; physiopathology

Objective To evaluate the effect of intravenous thrombolysis with urokinasc for treatment of acute cerebral infarction due to vertebrobasilar artery ischemia.Methods Thirteen pafients with a clinical diagnosis of acute cerebral infarction arising from vertebrobasilar artery ischemia received thmmbolytic therapy with urokinase(5×105-1.5×106U) infused intravenously within 1 h.The NIH Stroke Scale(NIHSS)was used to evaluate the patients'neurological function before and at 0,6,24 hand at 7 and 14 days after the treatment.Modified Rankin Scale(MRS)was used for neurologiical assessment 3 months after the treatments. Results The mean NIHSS score of the patients was 17.46±6.19 before treatment and rapidly decreased to 7.92±6.43 24 h after the thrombolytic therapy.Three months after the therapy,8 patients had favorable clinical outcomes defined as capability of independent living(MRS score of 0-2);2 patients had a poor outcomes with assisted living,and 3 patients died.Bleeding occurred in 4 cases including 2 cerebral hemorrhage cases. Conclusion Favorable clinical outcome can be achieved with intravenous urokinase therapy in the majority of patients with acute cerebral infarction due to vertebrobasilar ischcrnia.