No abstract available.
Ammonia* ; Pulmonary Fibrosis*

Adolescent ; Ammonia ; poisoning ; Female ; Humans

Objective: To analyze the situation of emergency psychological intervention in an acute ammonia leakage event, and to provide reference for emergency response. Methods: In August 2020, the emergency treatment of 65 patients admitted by Zhangqiu District People's Hospital Affiliated to Jining Medical College of Shandong Province in June 2019 in the ammonia tank car leakage incident was analyzed, the psychological intervention in emergency after the incident was collected, the anxiety and depression were evaluated by symptom checklist 90 (SCL-90) , and targeted psychological intervention was implemented according to the psychological evaluation results, And analyze the intervention efficiency. Results: Among the 65 patients, there were 52 cases of ammonia stimulation reaction, 11 cases of mild poisoning and 2 cases of moderate poisoning. There were 60 cases of chest tightness and dyspnea, 11 cases of bloody sputum, 58 cases of sore throat, 43 cases of hoarseness, 28 cases of photophobia and tears, 13 cases of blurred vision, 18 cases of nausea and vomiting, and 2 cases of dry and wet rales in the lungs. The scores of somatization, depression, anxiety, hostility, phobia, paranoia and negative coping in patients with mild and moderate poisoning were higher than those in patients with stimulus response (P<0.05) . The effective rate of intervention was 98.7%. Conclusion: Emergency psychological evaluation and intervention in mass public health events are helpful to the treatment of patients.
Ammonia ; Anxiety ; Anxiety Disorders ; Humans ; Psychosocial Intervention

Two strains of vancomycin-resistant Leuconostoc species were isolated from blood cultures in two compromised patients. The isolates produced gas from Lactobacillus MRS booth, hydrolysed esculin, and produced no ammonia from arginine, thus fulfilling the major criteria as Leucorostoc spp. We recommend that clinical laboratories should perform susceptibility test to vancomycin for clinical isolates (especially from cerebrospinal fluid and blood) which resemble streptococci so as not to confuse Leuconostoc spp. with more commonly isolated pathogens such as streptococci.
Ammonia ; Arginine ; Bacteremia* ; Cerebrospinal Fluid ; Esculin ; Humans ; Lactobacillus ; Leuconostoc* ; Vancomycin

OBJECTIVETo calculate the consequence of acute ammonia poisoning accident which was caused by the leak of liquefied ammonia storage tank, so as to provide theoretical basis for working out the counterplan of accidents.

METHODThe amount of liquefied ammonia to be reserved, the pressure and temperature inside the tank were inputted; based on the physical chemistry principle, the evaporating amount was calculated; and using the proper diffusion model, the size of ammonia cloud, percentages of death and depth range of the poisonous gas etc was calculated.

RESULTSAssuming the leaky tank had liquefied ammonia 50 t, the pressure and the temperature were 2.5 MPa and 30 degrees C respectively, the evaporating amount and the size of ammonia cloud were calculated. The radiuses, of the ammonia released cloud of severe, moderate and mild hazard were 108 m, 216 m, 370 m respectively; if the exposured time was 30 min, the percentage of death would be 50%; if the exposured time was 5 min, the percentage would be 10%; if the exposured time was 2 min, the percentage would be 2.5%. When the stable degree of circumstance was C, the wind speed was 2.3 m/s and the outside concentration of the cloud was 4000 mg/m3, dimension of cloud in X axis was 782 m and in Y axis was 88 m.

CONCLUSIONThe leaky consequence of liquefied ammonia was very serious. It is necessary to take preventive measures during production, storage, transportation and using of liquefied ammonia.

Taking the typical metabolic control product-guanosine as an example, the method of metabolic flux shift investigation based on process multi-levels parameter correlation analysis was established. The metabolic pathway, multi-parameter correlation, accumulation of amino acid and organic acid during guanosine fermentation process were integratively analyzed. The metabolic flux shift from HMP to EMP was ascertained, which was assumed to be caused by the accumulation of ammonium ion. The subsequent optimization based on controlling flux distribution between EMP and HMP did improve the yield by 35% when the metabolic flux shift was prevented.
Amino Acids ; metabolism ; Ammonia ; metabolism ; Fermentation ; Guanosine ; metabolism

BACKGROUND: Optimal operational efficiency requires specific technical solutions such as open, flexible, and adaptable space, suitable equipment requirements, and laboratory instrumentation that combine excellent analytical performance with a capacity for testing large panels in a high throughput manner, under rapid turnaround times. Thus, the aim of this study was to assess the analytical performance of the novel Roche-Hitachi cobas 8000 c702 Chemistry Autoanalyzer. METHODS: Precision, linearity, carry over, detection limits, and comparison studies were performed with 31 routine clinical chemistry tests according to the CLSI guidelines. Commercial quality chemistry control material (Lyphochek, Bio-Rad, USA) and patient sera were used as the test specimens. Unicel DxC instrument (Beckman Coulter, USA) was used as a control analyzer to evaluate the correlation. RESULTS: The total coefficients of variations (CVs) of almost all the analytes were between 0.4 and 4.1%, except for CO2 and ammonia. Excellent linearities were observed in the performance ranges used (r>0.99, slope, 0.961-1.048). Correlations with analogous tests ran on the Unicel DxC instrument were good, correlation coefficients ranging between 0.921 and 1.000. The carryover ranged from -0.216 to 0.481%. CONCLUSIONS: The Roche-Hitachi cobas 8000 c702 Chemistry Autoanalyzer showed satisfactory precision, linearity, carry over, detection limits, and high throughput capacity. The instrument performance correlated well with the Unicel DxC analyzer. We conclude that the balance of elevated throughput and optimal analytical performance should make Roche-Hitachi cobas c702 Chemistry Autoanalyzer suitable for very large clinical laboratories.
Ammonia ; Chemistry* ; Clinical Chemistry Tests ; Humans ; Limit of Detection

Valproate is widely used because of broad spectrum of action, but it can produce an encephalopathy resulting from hyperammonemia even at the therapeutic range of valproate and is called as valproate-induced encephalopathy (VHE). Delay in recognition of VHE can result in the development of potentially life-threatening complications. Fortunately, it is reversible with discontinuing valproate. A 65-year-old man became progressively lethargic with impaired gait and poor cognitive function while taking valproate as alternative to zonisamide. Routine investigations of admission profiles were performed but revealed no abnormalities. Next, we checked serum ammonia level to identify other possible causes and detected hyperammonemia despite the therapeutic range of valproate in the absence of any abnormalities in liver enzymes. On cessation of valproate, he has achieved dramatic clinical improvement including the reversal of hyperammonemia. We confirmed the diagnosis of VHE. This emphasizes the importance of rapid diagnosis and proper management of VHE in order to prevent the neurological damage and minimize complications.
Aged ; Ammonia ; Gait ; Humans ; Hyperammonemia ; Isoxazoles ; Liver ; Valproic Acid

Authors observed two cases of Reye syndrome in 7 and 8 year old male patients who had begun to vomit after chickenpox. The interval between the onset of varicella rash and encephalopathy of Reye syndrome was 4 days in both these cases. The initial laboratory findings revealed increased serum transaminase and blood ammonia levels which returned to normal on 18 th and 11 th days, respectively, of hospital care. A brief review of literatures was presented.
Ammonia ; Chickenpox ; Child ; Exanthema ; Humans ; Male ; Reye Syndrome*

Authors observed two cases of Reye syndrome in 7 and 8 year old male patients who had begun to vomit after chickenpox. The interval between the onset of varicella rash and encephalopathy of Reye syndrome was 4 days in both these cases. The initial laboratory findings revealed increased serum transaminase and blood ammonia levels which returned to normal on 18 th and 11 th days, respectively, of hospital care. A brief review of literatures was presented.
Ammonia ; Chickenpox ; Child ; Exanthema ; Humans ; Male ; Reye Syndrome*