ABSTRACT
Organochlorine pesticides(OCP)exist widely in the environment,which may threaten human health and cumulate for years once absorbed in the body.OCP metabolites in the body are associated with metabolic disorders.In vivo and in vitro exposure of OCP could enhance hepatic fatty acid synthesis, and interfere in the β-oxidation of fatty acids by impairing the function and structure of mitochondria in hepatocytes. Moreover, OCP can increase secondary bile acid formation by modulating of gut microbiota and reduceing ileal bile acid re-absorption,resulting in compensatory increase of hepatic bile acid synthesis. This review summarizes the mechanism of fatty acid and bile acid metabolic abnormalities caused by OCP.
ABSTRACT
Aim To study and compare the pharmaco-kinetic parameters of roxithromycin under normoxic and hypoxic rats. Methods A highly effective and rapid ultra-performance liquid chromatography with tandem mass spectrometry ( UPLC-MS/MS) method with posi-tive electrospray ionization source was successfully de-veloped and validated for quantification of roxithromy-cin in rat plasma. Sprague-Dawley rats were randomly divided into the hypoxia and normoxic groups. Each rat obtained a single dose of roxithromycin with 10 mg · kg-1 via intragastric administration. The pharmacoki-netic parameter comparison between normoxic and hy-poxic groups was calculated by SPSS software using in-dependent sample t test method. Results The main pharmacokinetic parameters of roxithromycin between the normoxic and hypoxic rats were:the AUC(0-t) 7 576 and 3 761 μg·h·L-1 , MRT(0-t) 5. 6 and 7. 7 h, T1/2 3. 4 h and 3. 9 h, CL 1. 5 and 3. 0 L · h-1 · kg-2 , tmax3. 1 and 3. 4 h, Cmax 1 116 and 372 μg·L-1 , re-spectively. The levels of Cmax and AUC of roxithromy-cin in hypoxic rats were statistically lower than those in normoxic rats. Conclusion The exposure level of rox-ithromycin in hypoxic rats markedly decreased. Our re-sults may provide an important experimental basis to adjust the dosage for roxithromycin in hypoxic clinical practice.
ABSTRACT
Objective:To observe the influence of sevoflurane and propofol anesthesia on hemodynamics in laparoscopic cholecys-tectomy. Methods:Totally 98 patients with laparoscopic cholecystectomy were randomly divided into P group and S group. P group was with propofol for anesthesia, and S group was with sevoflurane for anesthesia. Before anesthesia, 2min after intubation, 10 min af-ter intubation, 5min and 30min after pneumoperitoneum, and after the surgery, the levels of blood glucose and cortisol, and hemody-namic changes in the two groups were observed, and the incidence of adverse reactions was also studied. Results:2 min and 10 min af-ter the anesthesia, the blood glucose levels in the two groups were significantly lower than those before the anesthesia(P0. 05). 2 min and 10 min after intubation, SBP in the two groups was decreased (P0. 05). Conclusion: Sevoflurane anesthesia in laparoscopic cholecys-tectomy can keep stable hemodynamics in the patients, and the anesthetic effect is better than propofol.
ABSTRACT
To investigate the efficacy and safety of minimal y invasive endovascular techniques treatment of hydronephrosis in pregnancy complicated by infection. 65 cases of pregnancy hydronephrosis coinfected patients with minimal y invasive endovascular treatment. Patients were fol owed up for 3-12 months, compared with 48 patients with the same period of conservative treatment . Ureteral perforation and other surgery-related complications occurred in 65 patients in the observation group has not occurred. The patient's duration of hospitalization、the recurrence rate of postoperative infection, antibiotic duration of treatment, fever days were significantly lower than the control group(P Compared with conservative treatment, minimal y invasive endovascular technical treatment of gestational hydronephrosis co-infection with faster recovery, shorter hospital stay, can significantly reduce the number of days of fever patients and reduce the number of days of antibiotic use, can be used as conventional means of treatment of gestational hydronephrosis infection combined conventional.
ABSTRACT
Objective:To study the effect of priming technique combined with time limit on shortening the onset time of cisatra-curium besilate. Methods:Totally 112 adult patients undergoing selective operation with general anesthesia were randomly divided into group A, B and C. Fentanyl with the dose of 4 μg·kg-1 and propofol with the dose of 2 mg·kg-1 were used in the three groups as the inducing agents. Group A was first with intravenous injection of cisatracurium besilate 20 μg·kg-1 , and 3 minutes later, the in-ducing agents and cisatracurium besilate with the dose of 80 μg·kg-1 were respectively injected. Group B was first with intravenous injection of cisatracurium besilate with the dose of l00 μg·kg-1 , and 1. 5 minutes later, the inducing agents were injected. Group C was respectively injected with the inducing drugs and cisatracurium besilate with the dose of l00 μg·kg-1 . The T1 percentage before the induction, the time of 90% and 100% inhibition of muscle twitching, the rating of trachea cannula and adverse drug reactions in the three groups were observed and compared. Results:There was no significant difference in the excellent rate of trachea cannula a-mong the three groups (P>0. 05). Compared with group A and B, group C showed no T1 suppression before the induction, while group B with T1 of (9. 8 ± 2. 6) was higher than group A with T1 of (3. 2 ± 1. 5) (P<0. 01). The time of 90% and 100% inhibition of muscle twitching in group C was the longest (P<0. 01), and the incidence of adverse drug reactions in group C was also the highest (P<0. 05). Conclusion:The application of priming principle and time limit can effectively shorten the onset time of cisatracurium be-silate with significant effect and high safety.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the independent predictors of postoperative mortality, morbidity, and long-term survival in patients with stage IV ( colorectal cancer.</p><p><b>METHODS</b>Clinical data of 189 patients with stage IV( colorectal cancer undergoing palliative resection of primary tumor in the presence of unresectable synchronous metastases were analyzed retrospectively.</p><p><b>RESULTS</b>Eighty-six (45.5%)patients developed postoperative complications. Preoperative predictors of medical complications included age(≥65, P=0.039) and emergency operations (P=0.001). Preoperative predictors of surgical complications included advanced local disease (T4, P=0.022) and lymph node spread (N2, P=0.009). Seventeen (9.0%) patients died in the postoperative period. Mortality was independently associated with age(P=0.013), peritoneal dissemination(P=0.010), emergency operations(P=0.001) and medical complications(P=0.008). The survival rates at 1-, 2-, and 3- year of 172 patients admitted in survival analysis were 41.2%, 22.7% and 7.7% respectively. Independent factors associated with poor overall survival included lymph node spread(N2, P=0.015) and poor tumor differentiation(P=0.038).</p><p><b>CONCLUSIONS</b>Emergency operations should be avoid when palliative resection of primary tumor is considered for stage IV( colorectal cancer patients, especially for elderly patients and those with peritoneal dissemination. The significance of palliative resection is limited for stage IV ( colorectal cancer patients with lymph node spread and poor tumor differentiation.</p>
Subject(s)
Aged , Humans , Colorectal Neoplasms , Pathology , General Surgery , Lymph Nodes , Neoplasm Staging , Palliative Care , Postoperative Complications , Prognosis , Retrospective Studies , Survival AnalysisABSTRACT
The complete nucleotide sequence of a cDNA clone encoding weever ribosomal protein L8, WeevL8, is described here. The WeevL8 cDNA has 848 nucleotides in full length and encodes a 257 amino-acid protein with a calculated molecular mass of 28.02 kDa. Two conserved domains have been identified in WEEVL8. It was concluded fromsequence alignment that WeevL8 gene was quite conservative, consistent with its role as a house-keeping gene. A phylogenetic analysis made by L8 protein showed the similar phylogenetic relationship to that with 18s rDNA. The high similarity supports the notion that ribosomal protein L8 can also be used as phylogenetic criterion.
ABSTRACT
The complete nucleotide sequence of a cDNA clone encoding weever ribosomal protein L8, WeevL8, is described here. The WeevL8 cDNA has 848 nucleotides in full length and encodes a 257 amino-acid protein with a calculated molecular mass of 28.02 kDa. Two conserved domains have been identified in WEEVL8. It was concluded fromsequence alignment that WeevL8 gene was quite conservative, consistent with its role as a house-keeping gene. A phylogenetic analysis made by L8 protein showed the similar phylogenetic relationship to that with 18s rDNA. The high similarity supports the notion that ribosomal protein L8 can also be used as phylogenetic criterion.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the association of occupational injuries, with their individual safety perception and safety behaviors in steel workers, so as to provide basis for preventing and controlling occupational injuries.</p><p><b>METHODS</b>Case-control design was used to compare the difference in safety perception and safety behaviors between the injury group and the control, and also to compare the difference in safety behaviors between different safety perception groups.</p><p><b>RESULTS</b>There were remarkable differences in attitude toward the safety degree of the work (chi(2) = 5.444, P < 0.05), and accidents happening (chi(2) = 4.552, P < 0.05) between case group and control group. There were remarkable difference in safety behaviors including manual operations instead of facilities (chi(2) = 10.015, P < 0.01), cleaning up, examining or adjusting machine during work (chi(2) = 7.351, P < 0.05), attention diversion (chi(2) = 10.937, P < 0.01) and unsafe wearing (chi(2) = 7.521, P < 0.05) between case group and control group. There were also significant differences in many safety behaviors between those who thought the job was safe or unsafe.</p><p><b>CONCLUSION</b>There is some association of occupational injuries with safety perception and safety behaviors. To reduce the occurrence of occupational injury, measures should been focused on strengthening safety management and controlling unsafe behaviors.</p>