Up to now, a variety of microRNAs have been found in a number of studies, that specifically expressed in retinal neuroepithelial, lens, cornea and retinal pigment epithelium, in which miR-126 plays a certain role in the proliferation of tumor cells, the development of thymus lymphocytes and cardiovascular diseases.Some researches show that miR-126 has certain correlations with the formation of corneal neovascularization, the development of diabetic retinopathy, and the immune system related eye disease.In this paper, the current miR-126 in the role of eye disease mechanism and research progress were reviewed.

Insulin receptor substrate(IRS)-1 and IRS-2 expression levels of liver tissues and skeletal muscle in intrauterine growth retarded(IUGR)rats were investigated by RT-PCR and immunohistochemistry.An IUGR animal model was established by maternal nutrition restriction during pregnancy.IRS-2 expression level of liver tissue and IRS-1 expression level of skeletal muscle in IUGR rats at 0 and 3 weeks old were significantly lower than those in normal rats at the same age respectively,and insulin resistance was induced in IUGR,and these findings might be the molecular mechanisms susceptible to metabolic syndrome in IUGR rats.

Acute Lung Injury ; chemically induced ; drug therapy ; Animals ; Endotoxins ; Glycoproteins ; therapeutic use ; Male ; Propofol ; therapeutic use ; Rats ; Rats, Sprague-Dawley

To investigate the neuroprotective of ligustilide (LIG) against glutamate-induced apoptosis of PC12 cells, cell viability were examined by MTT assay. Flow cytometry was applied to assay cell apoptosis rate. Intracellular calcium concentration was measured by using fluorescent dye Fluo-3/AM. Cytochrome C (Cyt C), Caspase-3, Bax and Bcl-2 protein expression were assayed by western blot. The results showed that glutamate is cytotoxic with an inhibitory concentration 50 (ID50) of 15 mmol · L(-1). Pretreatment with LIG (1, 5, 15 μmol · L(-1)) significantly improved cell viability. The apoptosis rate in glutamate-induced PC12 cells was 13.39%, and decreased in the presence of LIG (1, 5, 15 μmol · L(-1)) by 9.06%, 6.48%, 3.82%, separately. Extracellular accumulation of Ca2+ induced by glutamate were significantly reduced by LIG. The results of western blot manifested that pretreatment LIG could decrease the release of Cyt C from mitochondria, down-regulate Caspase-3 protein expression and up-regulate Bcl-2/Bax ratio, thereby protects PC12 cells from apoptosis. In summary, LIG had protective effect on glutamate-induced apoptosis in PC12 cells through attenuating the increase in intracellular Ca2+ concentration, and inhibiting the release of Cyt C from mitochondria to cytoplasm.

Aged ; Dexmedetomidine ; pharmacology ; Extracorporeal Circulation ; Female ; Heart Valve Prosthesis Implantation ; adverse effects ; Humans ; Inflammation ; Interleukin-6 ; blood ; Interleukin-8 ; blood ; Intraoperative Period ; Male ; Middle Aged ; Tumor Necrosis Factor-alpha ; blood

· AIM: To study the in situ relative intraocular position of the iris-claw phakic intraocular lens (PIOL)for high myopia using an anterior chamber optical coherence tomography (AC OCT)prototype.· METHODS: Six PIOLs (11.50 to 22.00D lens powers) were implanted in phakic myopic eyes. Using AC OCT, tomography was taken in the anterior chamber to measure the preoperative anterior chamber depth, postoperative distance between the PIOL and the corneal endothelium (endothelial-optic distance), and the postoperative distance between the PIOL and the crystalline lens.· RESULTS: Preoperative anterior chamber depth ranged from 3.27 to 3.91 mm and the postoperative endothelial-optic distance measured 2,07 to 2,24 mm. The distance between the crystalline lens and the posterior surface of the IOL ranged from 0.82 to 1.32 mm. Several tomography revealed the position of the PIOL on the iris, The pigment layer of the iris did not seem to be disturbed by the presence of the PIOL.· CONCLUSION, The original anterior chamber depths were reduced by 36,1% to 44.6% after implantation. This study of 6 eyes revealed that tomography taken by AC OCT are useful in verifying the intraocular position of the PIOL within the anterior chamber. Adequate space was maintained between the iris-fixated phakic intraocular lens and the corneal endothelium, angle, and crystalline lens.

OBJECTIVE To investigate the changes in serum HBV-DNA level in HBsAg positive patients before and after operation and their infectious risk in hospital.METHODS HBV markers(HBV-M) in serum was detected in 58 HBsAg positive patients by time-resolved fluoroimmunometric assay before operation.HBV-DNA level in serum of them before operation and at 3rd,and 7th day after operation was detected by real time fluorescent quantitative polymerase chain reaction.We also detected HBV-DNA in gastric drainage juice and abdominal drainage after operation.RESULTS HBV-DNA was detected in 27 of 58 HBsAg positive patients' serum,the positive rate was 46.1%.After operation,serum HBV-DNA was increased remarkably at 3rd and 7th day compared with before operation in these patients respectively(P

OBJECTIVETo explore the effects of intrathecal injection of neuronal nitric oxide synthase (nNOS) inhibitors 7-Nitroindazole (7-Ni) and inducible nitric oxide synthase(iNOS) inhibitors aminoguanidine (AG) on the behavioral changes of morphine-induced dependent and withdrawal rats; the expression of Fos, nNOS and iNOS in spinal cord.

METHODSTo set up morphine dependence model, rats were subcutaneously injected with morphine (twice a day, for 5 d). The dose of morphine was 10 mg/kg in the first day and was increased by 10 mg/ kg every day. On day 6, 4 h after the injection of morphine (50 mg/kg), morphine withdrawal syndrome was precipitated by an injection of naloxone (4 mg/kg ip). 7-Ni, an nNOS inhibitor or iNOS inhibitors AG were intrathecally injected 30 min before the administration of naloxone respectively. The scores of morphine withdrawal symptom and morphine withdrawal-induced allodynia were observed. One hour after naloxone-precipitated withdrawal, Fos protein expression was assessed by immunohistochemical analysis and Western blot was used to detect the expression of nNOS and iNOS in the rat spinal cord.

RESULTSIntrathecal administration of nNOS inhibitor 7-Ni and iNOS inhibitors AG decreased the scores of morphine withdrawal, attenuated morphine withdrawal-induced allodynia and also inhibited the increase of Fos protein expression in the spinal cord of morphine withdrawal rats. nNOS and iNOS positive neurons in dorsal horn in nNOS group and iNOS group were significantly lower than that in withdrawal group. Compared with withdrawal group, level of nNOS and iNOS protein in spinal cord in nNOS group and iNOS group were significantly lower.

CONCLUSIONIt is suggested that nNOS and iNOS in the spinal cord may contribute to naloxone-precipitated withdrawal in rats and may play different roles in the above-mentioned effect.

Animals ; Guanidines ; pharmacology ; Indazoles ; pharmacology ; Male ; Morphine Dependence ; metabolism ; Naloxone ; pharmacology ; Nitric Oxide Synthase Type I ; antagonists & inhibitors ; metabolism ; Nitric Oxide Synthase Type II ; antagonists & inhibitors ; metabolism ; Rats ; Rats, Sprague-Dawley ; Spinal Cord ; drug effects ; metabolism ; Substance Withdrawal Syndrome ; metabolism

The samples of muscular tissue from pork,beef and lamb which were closely related in the genetic relationship were analyzed by ultra performance liquid chromatography-tandem mass spectrometric (UPLC-MS) technique.The specific peptide biomarkers of pig meat species were found and confirmed.Proteins from three pure meat samples were extracted and digested using trypsin,the digested proteins were identified by UPLC-triple time-of-flight (TOF)-MS,and the total ion chromatogram (TIC) was searched and analyzed against the UniProt database.Three high abundant homologous proteins of three species and 8 potential peptide biomarkers of pork were found.A multiple reaction monitoring (MRM) QTRAP-MS method was established to confirm the specificity of potential peptide biomarkers.As a result,five peptide biomarkers of pig species meat were confirmed,three of which were not reported.

Objective To observe the anesthetic effect of Sumianxin Ⅱcombined with chloral hydrate in plastic surgical operation on rabbit and explore the fast , safe and effective anesthetic methods .Methods A total of 82 Rabbits for operation were randomly divided into A , B and C groups.The A group was injected with SumianxinⅡintramuscularly (0.35 mL/kg by weight).The B group was injected with 10%chloral hydrate intravenously (2.5~3 mL/kg by weight).The C group was injected with Sumianxin Ⅱintramuscularly ( 0.2 mL/kg by weight ) combined with 10% chloral hydrate intravenously(1 ~1.5 mL/kg by weight).The anesthetic effect of induction and recovery time of anesthesia ,anesthesia maintaining time ,and anesthesia mortality rate were observed and compared .Results The anesthetic effect of induction of anesthesia,recovery time of C groups fall in between which of A and B groups ( P <0.05).However, as for anesthesia maintaining time , there was no significant difference between A and C group and both the two groups were longer than B group.Conclusion SumianxinⅡcombined with chloral hydrate possess the advantages of fast anesthesia induction and recovery effect , longer anesthesia maintaining time and low mortality .Therefore it is an easy to operate , expeditious , safe and effective anesthetization for plastic surgical operation on rabbit .