Adult ; Cord Blood Stem Cell Transplantation ; adverse effects ; Cytomegalovirus ; Cytomegalovirus Infections ; complications ; Female ; Hemolysis ; Humans

Aortic Aneurysm, Abdominal ; therapy ; Humans

Drugs, Chinese Herbal ; therapeutic use ; Humans ; Medicine, Chinese Traditional ; methods ; Phytotherapy ; Treatment Outcome

Adolescent ; Anti-Arrhythmia Agents ; adverse effects ; therapeutic use ; Arrhythmias, Cardiac ; drug therapy ; physiopathology ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Infant ; Male ; Sotalol ; adverse effects ; therapeutic use ; Treatment Outcome

Acute Disease ; Adolescent ; Adult ; Anticonvulsants ; therapeutic use ; Antidotes ; therapeutic use ; Bridged-Ring Compounds ; poisoning ; Diazepam ; therapeutic use ; Drug Therapy, Combination ; Electroencephalography ; Female ; Humans ; Male ; Poisoning ; drug therapy ; Treatment Outcome ; Unithiol ; therapeutic use

Animals ; DNA Damage ; Dose-Response Relationship, Drug ; Isotope Labeling ; Male ; Phosphorus Radioisotopes ; analysis ; Rats ; Rats, Sprague-Dawley ; Trichloroethylene ; toxicity

AIMTo study the effect of hyaluronic acid chitosan-based microemulsion (HAC-ME) on the permeability of blood brain barrier( BBB) by using Evans blue (EB) as the indicator.

METHODSA formamide extraction-ultraviolet spectrophotometry method was employed to determine the concentrations of EB in each of the tissues. The in vivo distribution of HAC-ME groups containing EB in mice and the fluorescence intensity and diffusion domain of brain slices were all studied.

RESULTSContrasting to the common microemulsion (ME), HAC-ME at the lower concentration of HAC (<5 mg x mL(-1)) could further improve the transporting of EB across the BBB while EB concentration in other tissues decreased, and Tmax was delayed about 30 min.

CONCLUSIONHAC-ME could facilitate the transporting of EB across the BBB and it was concentration dependent. While the brain targeting absorptive capability of HAC-ME was enhanced.

Animals ; Blood-Brain Barrier ; drug effects ; metabolism ; Brain ; metabolism ; Chitosan ; chemistry ; pharmacology ; Dose-Response Relationship, Drug ; Emulsions ; Evans Blue ; chemistry ; pharmacokinetics ; Female ; Hyaluronic Acid ; chemistry ; pharmacokinetics ; pharmacology ; Male ; Mice ; Particle Size ; Tissue Distribution

Acute Disease ; Adult ; Aged ; Blood-Brain Barrier ; physiopathology ; Brain Diseases ; blood ; chemically induced ; Carbon Monoxide Poisoning ; complications ; Female ; Humans ; Interleukin-6 ; blood ; Male ; Middle Aged

OBJECTIVETo investigate thoracic aortic longitudinal elastic strength in β-aminopropionitrile (BAPN) treated rat model of aortic dissection (AD).

METHODSTwenty-nine young rats (Sprague-Dawley) were divided into tow groups, control group (n = 12) and BAPN group (n = 17). Seventeen rats were treated with 0.25% BAPN mixed in feed for 6 weeks. All the rats were sacrificed in the end of experiment and aorta was harvested for biomechanical and pathological study. Longitudinal elastic strength and stress were detected and analyzed by material testing machine. Elasticity modulus as well as maximum stretching length, draw ratio, maximum load, maximum strength, and maximum extensibility was calculated according to the analysis with thickness and area of aortic media.

RESULTSNine BAPN-treated rats died of aortic dissecting aneurysm rupture during the experiment. The diameter of the aneurysms was (6.33 ± 1.17) mm and the length was (9 ± 5) mm. The maximum diameter significantly increased in BAPN-induced rats with AD (group B2) compared with without AD (group B1) and control group ((6.49 ± 1.20) mm vs. (1.45 ± 0.11), (1.25 ± 0.26); F = 165.257, P = 0.001 and 0.000, respectively), but there was no significance between group B1 and control group (P = 0.108). Thickness and area of aortic media in BAPN-induced rats significantly increased compared with control group (F = 27.277 and 27.153, P = 0.000 and 0.000, respectively), but there was no significance of area between group B1 and B2 (P = 0.540). Maximum stretching length, draw ratio, maximum load, maximum strength maximum extensibility and elasticity modulus were significantly decreased from group B2, group B1 to control group (P < 0.01, respectively).

CONCLUSIONSThis study built a successful model of AD. Biomechanical analysis and the decrease of maximum stretching length, draw ratio, maximum load, maximum strength maximum extensibility and elasticity modulus may explain the formation of AD partly.

Aminopropionitrile ; pharmacology ; Aneurysm, Dissecting ; chemically induced ; Animals ; Aorta ; pathology ; physiopathology ; Biomechanical Phenomena ; Disease Models, Animal ; Elastic Modulus ; Male ; Rats ; Rats, Sprague-Dawley

Tramadol and its metabolites in rat urine were identified by LC-MS(n). Rat urine samples of 0-36 h were collected after ip 9.0 mg x kg(-1) tramadol, then the samples were enriched and purified through solid-phase extraction cartridge. Purified samples were analyzed by LC-MS(n). Possible metabolites were discovered by comparing the full scan and SIM chromatograms of the test samples with the corresponding blanks and analyzing the retention time, quasi-molecular ion and fragment ion of all chromatograms. Nine phase I metabolites and four phase II metabolites were identified in rat urine. One of the metabolites was found first time in living body. The metabolites were formed via the following metabolic pathways: O-demethylation, N-demethylation, hydroxylation, N-oxidation and conjugation. The method can be used to identify tramadol and its metabolites in other animals and human.
Analgesics, Opioid ; administration & dosage ; metabolism ; urine ; Animals ; Chromatography, High Pressure Liquid ; Injections, Intraperitoneal ; Male ; Rats ; Rats, Wistar ; Spectrometry, Mass, Electrospray Ionization ; Tandem Mass Spectrometry ; Tramadol ; administration & dosage ; metabolism ; urine