Heavy Metal Poisoning ; Humans ; Nervous System ; drug effects ; Poisoning ; Thallium ; poisoning

Adolescent ; Adult ; Child ; Child, Preschool ; China ; Female ; Heavy Metal Poisoning ; Humans ; Infant ; Male ; Middle Aged ; Poisoning ; diagnosis ; Prognosis ; Thallium ; poisoning ; Young Adult

Dermatitis, Occupational ; diagnosis ; Diagnostic Errors ; Female ; Humans ; Trichloroethylene ; adverse effects ; Young Adult

Acidosis ; etiology ; Humans ; Kidney Diseases ; etiology ; Toluene ; toxicity

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Heavy Metal Poisoning ; Humans ; Male ; Middle Aged ; Poisoning ; diagnosis ; therapy ; Prognosis ; Thallium ; poisoning ; Treatment Outcome ; Young Adult

Objective To detect the ocular fundus hemodynamic changes in patients with rhegmatogenous retinal detachment before and after the scleral buckling procedure by Heidelberg retina flowmeter,and analyse the related influential factors. Methods Heidelberg retina flowmeter was employed to measure the volume,flow and velocity in retinal vessels of the impaired eyes in 47 patients with unilateral rhegmatogenous retinal detachments 1 day before and 1 week,1 month and 3 months after scleral buckling procedure.The contralateral eyes were served as controls. ResultsThere were significant differences in the volume,flow and velocity of retinal vessels between the impared eyes and controls preoperation and postoperation(P

OBJECTIVETo get the message about the developing feature of pneumoconiosis by analyzing the data from 353 cases of pneumoconiosis diagnosed in our hospital recent 6 years.

METHODSTo analyze the onset age, onset service years and incubation period of 353 cases of pneumoconiosis, especially in silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis.

RESULTS353 patients referred to 10 species of pneumoconiosis, the silicosis, coal worker's pneumoconiosis and potter's pneumoconiosis were accounted for 28.90%, 43.34% and 15.01% of total pneumoconiosis respectively. Diagnosed patients who began to exposed to dust during 1950's to 1980's accounted for 84.99% of all the diagnosed patients. The onset age, onset service years and incubation period of silicosis, coal worker's pneumoconiosis and potters pneumoconiosis all showed a shorten trend compared each other every decade, especially after 1980's, but excluded potter's pneumoconiosis because of that the ceramics industry switched to other products in Beijing. There was a positive correlation relationship between average onset age and incubation period in three main species of pneumoconiosis mentioned above, but no significant difference could be seen in average promotion years. Additionally, comparing with other type of work, jade machining workers showed such a characteristic as younger onset and short incubation period.

CONCLUSIONThe development situation of silicosis, coal worker's pneumoconiosis is still no so optimistic, and the strict surveillance and administration especially to the township enterprises with poor production conditions should get further strengthen.

Age of Onset ; Aged ; Female ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; diagnosis ; epidemiology ; Time Factors

The glutamate dehydrogenase (EC.1.4.1.4) gene which amplified from the genome of Brevibacterium flavum GDK-9 by polymerase chain reaction was linked with pUCm-T for sequence alignment. Analysis of gdh sequences revealed that the whole sequence is 1927 bp, only one ORF existed, which used ATG as the initiation codon and coded a peptide of 448 amino acids with a calculated molecular weight of 48 kD. The comparability between the cloned gdh sequence to the reported sequence is high to 99.55%. Only the 1190th base mutation (C→A) lead to the change of amino acid sequence (Thr→Asn), the others are not. The recombinant plasmid pXG was then transformed into E. coli XL-Blue and Brevibacterium flavum GDK-9 which was induced by IPTG. SDS-PAGE analysis revealed that there was a clear induced protein band with molecular mass of 48.7 kD on expected position. Standard glutamate fermentations indicated that although the level of GDH increases the intracellular glutamate pool, the level of GDH has no influence on glutamate secretion.

OBJECTIVETo investigate the incidence of rhabdomyolysis, the relationship between striated muscular injury and myocardiac injury, and the role of elevated serum creatine kinase (CK) played in screening these two complications following acute carbon monoxide poisoning (ACOP).

METHODS280 patients with ACOP from January 2001 to April 2003 were analyzed retrospectively. According to the clinical manifestations of striated muscular injury (swelling, pain or serious myasthenia), the patients were divided into two groups: the evident injury group and non-evident injury group.

RESULTSThe abnormality rate of electrocardiogram (ECG) and cardiac troponin I (CTnI) in the evident injury group (43 patients) were significantly higher than in the non-evident injury group (73.8% vs 43.4%, P < 0.001; 77.8% vs 20.9%, P < 0.001). There was a positive correlation between peak CK and MB isoenzyme (CK-MB) in both groups, respectively (r = 0.819, r = 0.795, P < 0.01). There was no correlation in the evident injury group (P > 0.05) and only negative correlation in the non-evident injury group (r = -0.298, P < 0.01) between peak CK and MB ratio (CK-MB/CK). Multiple regression analysis indicated that peak CK and CK-MB were only related with the striated muscular injury and were not affected by the indexes of the myocardial injury (ECG and CTnI); Both peak CK and CK-MB were positively correlated with the coma time before consultation in the non-evident injury group and the latter was also affected by CTnI. The incidence of positive muscular injury symptoms increased with the elevation of CK activity. There was no significant difference either in the ECG abnormality rate between the < 5 times elevated CK level subgroup and the > 5 times elevated CK level subgroup (P > 0.05), or in the CTnI positive rate between the normal CK level subgroup and the < 5 times elevated CK level subgroup (P > 0.05).

CONCLUSIONStriated muscular injury is not a rare complication of ACOP, and always accompanied by myocardial injury. The strikingly elevated serum level of CK in patients with ACOP might be more likely to indicate the striated muscle not myocardiac injury.

Acute Disease ; Adult ; Carbon Monoxide Poisoning ; complications ; Cardiomyopathies ; chemically induced ; diagnosis ; Creatine Kinase ; blood ; Creatine Kinase, MB Form ; blood ; Electrocardiography ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Muscular Diseases ; chemically induced ; diagnosis ; Regression Analysis ; Retrospective Studies ; Troponin I ; blood

OBJECTIVETo investigate the feasibility of dynamic magnetic resonance diffusion tensor imaging (DTI) in rabbit models with implanted VX2 hepatic tumor grafts.

METHODSMRI and DTI images were obtained from 16 rabbit models with implanted VX2 hepatic tumor grafts (14, 18, 22, and 26 days after tumor implantation, respectively) and 4 normal rabbits. The average diffusion coefficient (ADC) and exponential ADC (eADC) were estimated and compared against pathological findings.

RESULTSThe ADC values increased after tumor implantation but then decreased in the rabbit models, whereas eADC exhibited a pattern of reverse changes. These changes significantly differed from those in the control group. Coagulation necrosis and fibrous hyperplasia showed obvious increase as found by pathological examination.

CONCLUSIONDynamic MR DTI quantitative analysis of rabbit models of implanted VX2 hepatic tumor can partially describe the growth behaviors of implanted liver cancer.

Animals ; Carcinoma, Hepatocellular ; pathology ; Diffusion Magnetic Resonance Imaging ; Female ; Image Enhancement ; methods ; Liver Neoplasms ; pathology ; Male ; Neoplasm Transplantation ; Rabbits ; Random Allocation