Objective To investigate the changes in hydrogen sulfide(H_2S) level in plasma and myocardial tissues of doxorubicin-induced heart failure rats,and to study the role of H_2S in the development of doxorubicin-induced heart failure.Methods Male Wistar rats were randomly divided into 2 groups as follows:the doxorubicin group(n=12),in which 2.5 mg/kg of doxorubicin was injected intraperitoneal once a week for 10 weeks(total dose of 25 mg/kg);the control group(n=9),in which an(equivalent) volume of physiological saline was administered weekly for a total of 10 weeks.The observation of behavior was taken at the same time.Hemodynamic and echocardiographic measurements were obtained 10 weeks after treatment.Meanwhile,H_2S concentrations in serum and myocardial tissues were evaluated by modified sulfide electrode method.The changes of H_2S level between 2 groups were analyzed.Results The rats treated with doxorubicin showed inanimate behavior,decrease of the body temperature,activities and food intake,faster breathing,significant loss of weight,the cumulative mortality was 33%.Left ventricular systolic pressure(LVSP),difference of left ventricular pressure[△LVP=LVSP-left ventricular diastolic pressure(LVDP)] and left ventricular peak rate of contraction(+LV dp/dtmax),left ventricular peak rate of relaxation(-LV dp/dtmax)were significantly reduced in the group of doxorubicin rats(P

Adult ; Humans ; Male ; Middle Aged ; Occupational Exposure ; Radiation, Ionizing ; Radiology Department, Hospital ; Serum ; metabolism ; radiation effects ; Testosterone ; blood ; Thyroid Hormones ; blood

Objective To study the characteristics and clinical features of positive response during head - up tilt test (HUT) in children. Methods Forty- nine cases of syncope and aura of syncope were included in the study. All of them underwent HUT (tilt angle 60 degree,lasting 45 minutes). During the test,children' blood pressure,heart rate.electrocardiography and clinical symptoms and signs were dynamically observed. Results The common syncope aura symptoms were headache, dizziness, chest distress, difficulties in breathing, pale, perspiration, blurred vision, auditus depression and symptoms related to digestive symptoms. Among the 28 positive cases, 7 cases were of vaso - inhibitory pattern (25%), with a decrease in blood pressure and an increase in heart rate, 3 cases inhibitory pattern (11%), with a decrease in heart rate but withoilt'blood pressure changes, 4 cases mixed pattern (14 %), with decreases in heart rate and blood pressure obviously, 10 eases POTS (36%), with an increase in heart rate by 30 bpm or up to 120 bpm within 10 minutes while testing, and 4 cases orthostatic hypotension (14%), with a decrease in blood pressure within 3 minutes. Conclusion HUT can be regarded as the main tool in differential diagnosis of unexplained syncope in children.

OBJECTIVETo explore the clinical application value of Provider-Initiated HIV Testing and Counseling (PITC) by analyzing the positive rate of HIV tests for people in need of PITC and that of routine HIV tests.

METHODSWe retrospectively analyzed the demographic and epidemiologic data about the patients seeking PITC services or undergoing routine HIV tests in Nanjing Drum Tower Hospital between January and December 2013.

RESULTSThe positive rate of initial HIV screening was 1.98% in the PITC group and 0.24% in the routine test group, while that of confirmed HIV was 0. 40% in the former and 0.07% in the latter, both with statistically significant differences between the two groups (P < 0.01). The positive rate of HIV was markedly higher in males than in females, particularly in the PITC group.

CONCLUSIONPITC has a high clinical value in HIV detection for targeted subjects and therefore deserves general application in dermatology.

Counseling ; Dermatology ; Female ; HIV Seropositivity ; diagnosis ; epidemiology ; Humans ; Male ; Mass Screening ; methods ; Retrospective Studies ; Sex Factors

Objective To investigate the factors associated with hyporesponsiveness to erythropoietin (EPO) in patients on maintenance peritoneal dialysis (PD) . Methods Data of 114 PD patients in our PD center were collected . Patients were divided into three groups according to weekly EPO dose: hyperresponsive, hyporesponsive and normal responsive . Various factors were compared among three groups by linear correlation and ordinal regression analysis to predict EPO resistance . Results As compared to hyperresponsive and normal responsive groups,significantly lower serum hemoglobin [(78 .11±13 .42) vs (106 .28±23 .83), (96 .31±12 .33) g/L],albumin [(33 .98±4 .78) vs (39 .72±4 .26), (35 .76±4 .88) g/L], and significantly higher serum CRP [(26 .08±21 .66) vs (5 .46±1 .75), (11 .82±5 .63) mg/L], ferritin [(371 .08±89 .38) vs (289 .39±76 .84),(323 .07±62 .46) μg/L] were found in hyporesponsive group(all P ＜ 0 .01) . Erythropoietin resistance index (ERI) was correlated with CRP and albumin . Regression analysis showed that serum albumin,CRP and ferritin were strong predictors of EPO hyporespnsiveness . Conclusions Serum albumin,CRP and ferritin are closely related to hyporesponsiveness . Malnutrition and inflammatory state contribute to EPO hyporesponsiveness .

Objective To compare the clinical efficacy between continuous and intermittent androgen deprivation in high risk prostate cancer.Methods Sixty-four patients with high risk prostate cancer were treated from January 2008 to April 2009,36 cases who accepted goserelin and bicalutamide were taken as intermittent hormonal therapy (intermittent treatment group),while 28 cases who accepted bilateral orchiectomy in addition to flutamide were regarded as continuous hormonal therapy (continuous treatment group).The comparison of tumor specific mortality,time of prostate specific antigen (PSA) to nadir,tine to PSA recurrence,serum testerone and quality of life score were assessed between the two groups.Results In continuous treatment group and intermittent treatment group,follow-up period was (26.4 ± 10.3) and (28.1 ± 8.7) months,the time of PSA to nadir was (3.8 ± 2.1 ) and (4.0 ± 3.6) months,the time to PSA recurrence was (20.1 ± 12.3) and (24.5 ± 14.6) months,respectively.There was no significant difference between the two groups.At the time of 18,24 and 30 months after therapy,serum testerone was 0.85,0.88,0.89 μg/L in continuous treatment group,while 1.21,1.36,1.48 μg/L in intermittent treatment group,respectively (P ＜ 0.05 ).Similarly,quality of life score was 38.7,40.5,39.8 scores in continuous treatment group,while 49.2,51.4,52.3 scores in intermittent treatment group at the time of 12,18 and 30 months after therapy,respectively (P ＜ 0.05 ).Conclusions Clinical efficacy could not been found between continuous and intermittent endocrinic therapy of prostate cancer.During intermittent,quality of life seems to be better and increases in accordance with serum testerone recurrence at given time.

Cinobufacino injection is a significant anti-tumor medicine for the treatment of various tumors in clinic, which was made from water extraction of the skin of Bufo bufo gargarizans. In present paper, HPLC-DAD-FT-ICR-MS method was used to identify the major bufadienolides in cinobufacino for the first time. Solid-phase extraction with dichloromethane and silica was used to enrich the total bufadienolides in cinobufacino. Based on the UV and high resolution MS/MS data, 33 bufadienolides were analyzed and characterized. Among them, eight compounds were identified by comparing with standard references unambiguously. This study elucidated the major bufadienolides in cinobufacino, which provided material foundation of cinobufacino and will be benefit for the further pharmacological research.
Amphibian Venoms ; chemistry ; Animals ; Bufanolides ; analysis ; chemistry ; Bufo bufo ; Chromatography, High Pressure Liquid ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization ; Tandem Mass Spectrometry

Objective To investigate the clinical significance of myasthenia gravis (MG) associated autoantibodies.Methods Titin,ryanodine receptor (RyR)and acetylcholine receptor (AChR) antibodies were examined in the sera of 74 myasthenia gravies patients by ELISA.Results AChR,Titin, RyR antibodies were detected in 77.0% (57/74),39.2% (29/74) and 32.4% (24/74) of the MG patients,respectively.For thymoma MG,AChR,Titin and RyR antibodies were detected in 76.2% (16/21),71.4% (15/21) and 52.4% (11/21) respectively.For late onset MG,Titin and RyR antibodies were detected in 77.3% (17/22) and 50.0% (11/22) respectively.With respect to the modified Osserman classification,the positve rate for Titin and RyR antibodies is much higher in more severe patients (X~2= 16.094,P=0.001;X~2=11.226,P=0.011).Titin antibodies was significantly related with RyR antibodies (r=0.380,P=0.001).Conclusions Titin and RyR antibodies show high sensitivity for thymoma MG,and the combination of serological and radiological testing can increase both sensitivity and specificity in diagnosis of thymoma MG.The levels of the two antibodies may serve as important prognosis markers in MG.The induction of the immune response against Titin and RyR and the possible pathogenic effects of the two antibodies will be further studied.

Objective To explore the association between HMGB1 and coagulation disorder in severe heat stroke rats. Methods A total of 48 rats were randomized equally into 8 groups: Room temperature group (Sham), severe heatstroke (HS) re-cooling 0 h (HS-0 h), 3 h (HS-3 h), 6 h (HS-6 h), 9 h (HS-9 h), 12 h (HS-12 h), 18 h (HS-18 h), 24 h (HS-24 h) groups. Sham group rats were housed at room temperature of (25.0±0.5) ℃ and humidity of (50.0%±5.0%), while severe heatstroke group rats were kept in an incubator at a temperature of (39.5±0.2) ℃ and humidity of 60.0%±5.0%. Rats with the rectal temperature (Tr) reached 43 ℃ were defined as the onset of severe heatstroke, followed by transferring to the room temperature for natural cooling. The blood samples were collected at 0, 3, 6, 9, 12, 18 and 24 h after natural cooling. Prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), fibrinogen (Fib) were evaluated by clotting methods. HMGB1and thrombin-antithrombin (TAT) were detected by ELISA. Results A linear association between HMGB1 and PT was found (P<0.05); a linear association between HMGB1 and TAT was found (P<0.001); the linear relationship between HMGB1 and TT or APTT was found, but there was no statistic difference (P>0.05); a nonlinear association between HMGB1 and PLT was found (P<0.001). There was no association between HMGB1 and Fib (P>0.05). Conclusions HMGB1 has a significant association with coagulation disorder in severe heat stroke rats. The mechanism needs to be further studied.