Adolescent ; Adult ; Aged ; Burns ; etiology ; microbiology ; Child ; Child, Preschool ; Drug Resistance, Bacterial ; Explosions ; Female ; Humans ; Male ; Middle Aged ; Wound Infection ; microbiology ; Young Adult

Acute Disease ; Child ; Cytidine Deaminase ; genetics ; Humans ; Leukemia ; genetics ; Polymorphism, Single Nucleotide ; genetics

Animals ; Gene Expression ; Mice ; Mice, Inbred Strains ; Spinal Cord ; metabolism ; Spinal Cord Injuries ; genetics ; metabolism ; p21-Activated Kinases ; genetics

AIM:To contrast analysis of postoperative variation of corneal posterior surface heights after Femtosecond LASlK ( FS - LASlK ) and small incision lenticule extraction ( SMlLE) for high myopia.
●METHODS: Sixty-seven cases of high myopic patients (132 eyes) operated with laser corneal refractive in our hospital from May to Dec. in 2015 (-6. 00D≤spherical equivalent degree≤-10. 00D) were selected and divided into FS-LASlK group and SMlLE group. The thickness of corneal flaps at FS-LASlK and the thickness of map at SMlLE were designed to be 110μm. Corneal posterior surface heights were examined by Pentacam at preoperation, postoperative 3 and 6mo after FS-LASlK and SMlLE operation. Surface height changes after preoperative, postoperative 3 and 6mo were compared by measuring Pentacam corneal analysis system.
●RESULTS: Six months after operation, the FS-LASlK posterior corneal surface height was 6. 47 ± 1. 65mm, significantly higher than 5. 20 ± 1. 32mm before operation. SMlLE posterior corneal surface height was 6. 40 ± 1. 33mm, significantly higher than 5. 18 ± 1. 25mm before operation, the differences were statistically significant( P<0. 05). Six month after surgery, two methods of corneal surface height variation obtained was 1. 29 ± 1. 28mm and 1. 22 ± 0. 89mm, there was no significant difference ( P>0. 05).
●CONCLUSION:After FS-LASlK and SMlLE, the corneal posterior surface is protrusive. FS - LASlK is slightly obvious than SMlLE in early period. The stability of the posterior surface is better after SMlLE.

AIM: To observe effect of the iris location to femtosecond - combined wavefront guided LASIK for myopia and astigmatism.?METHODS:The patients with astigmatism >1. 0D during the same time and followed up for 1a were selected. A total of 129 eyes in 67 patients were treated under iris location with femtosecond-combined wavefront guided LASIK ( experimental group) and 161 eyes in 82 cases with femtosecond-combined wavefront guided LASIK ( control group) . Laser cutting went with the same laser machine. The uncorrected visual acuity ( UCVA ) , best corrected visual acuity ( BCVA) , and wavefront aberration between the two groups were compared at 1, 3, 6mo and 1a after surgery.?RESULTS:At 1 and 3mo after surgery, the number of patients with better postoperative UCVA than preoperative BCVA between the two group showed a statistically significant difference (χ2=6. 423, P=0. 011,χ2=14. 431, P=0. 01 ); at 1d and 1mo after surgery, the residual astigmatism showed a statistically significant difference between two groups (t=1. 98, P<0. 05; t=2. 23, P<0. 05). At 3, 6mo and 1a after surgery, the differences on the change of residual astigmatism between the two groups weren’t significant ( P > 0. 05 ). At 6mo and 1a after surgery, the differences on UCVA between the two groups weren’t significant ( P > 0. 05 ). Until 1a after surgery, the root mean square ( RMS ) of high order wavefront aberration of the two groups, spherical aberration and coma aberration ( COMA ) were all enhanced compared to before surgery(P<0. 05). At 1, 3mo after surgery, the RMS showed a statistically significant difference between two groups (P<0. 05). At 1, 3, 6mo, 1a after surgery, the increase of COMA in experimental group was significantly lower than that in control group (P<0. 05).? CONCLUSION: Iris location technology applied in femtosecond - combined wavefront guided LASIK for myopia and astigmatism, can make the vision recovery faster, the RMS of high order and COMA increase less, the residual astigmatism less, show better and more stable treatment effect.

OBJECTIVETo investigate the allele and genotype frequencies of reduced folate carrier gene (RFC) 80G/A polymorphism in Chinese patients with acute leukemia (AL) and healthy control children, and to provide clue for association between the single nucleotide polymorphism (SNP) of RFC and the occurrence of AL.

METHODSBone marrow samples from 98 childhood patients with AL and peripheral blood samples from 135 healthy children were obtained to prepare complementary DNAs (cDNAs). The cDNAs were analyzed for the polymorphisms in RFC 80G/A by reverse transcriptase-polymerase chain reaction-denaturing gradient gel electrophoresis (RT-PCR-DGGE) and direct sequencing.

RESULTSThe A allele frequencies of the AL patients and control children were 0.515 and 0.415, respectively (P< 0.05). Chi-square test confirmed a statistical significance of the association between RFC80 G/A and AL.

CONCLUSIONRFC 80AA or GA genotype may contribute to increasing the susceptibility to AL.

Acute Disease ; Adolescent ; Base Sequence ; Child ; Child, Preschool ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; genetics ; Humans ; Infant ; Infant, Newborn ; Leukemia ; genetics ; Male ; Polymorphism, Single Nucleotide ; genetics ; Reduced Folate Carrier Protein ; genetics ; Sequence Analysis, DNA

Objective To investigate the relationship of folates,vitamin B_(12) with tan phosphorylation and the possible mechanism in Alzhcimer's disease (AD).Method Tau protein phosphorylation was examined in hippocampns of rats of two months old and forty months old treated or untreated by folates and vitamin B_(12) using Western blot and immunohistochemistry with phosphorylation dependent and independent tau antibodies.Results We found that tau phosphorylation in aged rat brain showed a significant higher level than that in the two-month olds.Folates combined with vitamin.B_(12) could decrease tau phosphorylation by 27% at the site of Ser396/404 of hippoeampus in aged rats.Conclusion It suggests folates and vitamin B_(12) may play an important role in preventing the neurodegenerative change via effeeting tau phosphorylation in AD brain.

OBJECTIVETo evaluate the clinical efficiency and safety of two-micron laser resection of the prostate-tangerine technique (TmLRP-TT) for the treatment of large-volume ( > 70 ml) prostate in patients with benign prostatic hyperplasia (BPH).

METHODSThis retrospective analysis included 80 BPH patients with the prostatic volume larger than 70 ml, all treated by TmLRP-TT. We comparatively analyzed the levels of hemoglobin and serum sodium before and after surgery, recorded intra- and post-operative com- plications, and followed up the patients at 6 and 12 months after operation for International Prostate Symptom Score (IPSS), quality of life (QOL), maximum flow rate (Qmax), and postvoid residual urine volume (PVR).

RESULTSAll the operations were successfully completed. The mean hemoglobin decreased (0.68 +/- 0.43) g/dl intraoperatively, but no apparent reduction was observed in serum sodium. Lower urinary tract symptoms were relieved significantly in all the cases. At 12 months after surgery, IPSS was decreased by 73.89% as compared with the baseline (20.03 +/- 6.9 vs 5.23 +/- 3.59), QOL by 64.55% (4.09 +/- 1.19 vs 1.45 +/- 1.36), and PVR by 79.30% (97.31 +/- 57.90 vs 20.14 +/- 24.20 ml), while Qmax increased by 140.42% ([8.04 +/- 3.62] vs [19.33 +/- 3.28] ml/s). The incidence of complications was low either intraoperatively or during the 12 months after operation.

CONCLUSIONTmLRP-TT is a safe and effective surgical endoscopic approach to the treatment of large-volume prostate in BPH patients.

Aged ; Follow-Up Studies ; Humans ; Laser Therapy ; methods ; Male ; Middle Aged ; Prostatic Hyperplasia ; surgery ; Retrospective Studies ; Transurethral Resection of Prostate ; methods ; Treatment Outcome

OBJECTIVETo examine the antagonization of phentolamine against the effects of norepinephrine (NE) on the activity of pain-related neurons in the parafascicular nucleus of morphine-dependent rats.

METHODSElectric impulses were applied as nociceptive stimulus to the right sciatic nerve of morphine-dependent rats, and the discharges of the pain-related neurons in the parafascicular nucleus were recorded by extracellular recording method with glass microelectrodes.

RESULTSIntracerebroventricular injection of norepinephrine resulted in the inhibition of evoked response of the pain-excited neurons as well as the excitation of evoked response of the pain-inhibiting neurons. Both the inhibitory effect on the electric discharges of the pain-excited neurons and the excitatory effect on the pain-inhibiting neurons of norepinephrine were almost completely blocked by intracerebroventricular administration of phentolamine.

CONCLUSIONPhentolamine antagonizes the inhibitory effect of norepinephrine on the activity of pain-related neurons in the parafascicular nucleus in morphine-dependent rats, and norepinephrine may play an important role in the integration of the pain signal through the alpha-receptors.

Animals ; Drug Antagonism ; Electrophysiology ; Intralaminar Thalamic Nuclei ; cytology ; drug effects ; Neurons ; drug effects ; Norepinephrine ; antagonists & inhibitors ; pharmacology ; Pain ; physiopathology ; Phentolamine ; pharmacology ; Rats ; Rats, Wistar

OBJECTIVETo use heme oxygenase (HO) inducer hemin and a HO inhibitor zinc protoporphyrin (ZnPP) to investigate the effect of HO on apoptosis and apoptosis genes in hepatic ischemia reperfusion (IR) injury in rats.

METHODSNinety-six Sprague-Dawley rats were randomly divided into four groups (24 rats in each): a sham-operation group, an ischemia-reperfusion (IR) group, a hemin-IR group and a ZnPP-IR group. Liver functions, liver histology and hepatocellular apoptosis rates were observed at 0, 1.5, 4 and 8 hours after reperfusion. Hepatocellular apoptosis was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling; expressions of Bcl-2 and caspase-3 were determined by Western blot.

RESULTSCompared with the sham-operation group, the levels of ALT and AST were increased in the IR group. In the IR group the histological changes found in the livers were swelling of hepatocytes, narrowing of hepatic sinusoids, inflammatory cell infiltration and necrosis of hepatocytes in some areas of the livers. In the IR group rate of hepatocellular apoptosis was increased at 0, 1.5, 4 and 8 hours after reperfusion; expression of Bcl-2 was decreased and the expression of caspase-3 was increased. In the hemin-IR group, the levels of ALT and AST were lower, the pathological changes were milder and the rate of hepatocellular apoptosis was lower at 0, 1.5, 4 and 8 hours in comparison to those of the IR group. The expression of Bcl-2 was higher and the expression of caspase-3 was lower in the hemin-IR group in comparison to those of the IR group. The results in the ZnPP-IR group were just the opposite to those of the hemin-IR group.

CONCLUSIONHO might play a protective role in hepatic IR injury in rats, and this effect may be related to the inhibition of hepatocellular apoptosis.

Animals ; Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Heme Oxygenase (Decyclizing) ; metabolism ; Hepatocytes ; metabolism ; pathology ; Liver Diseases ; metabolism ; pathology ; Male ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Protoporphyrins ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; metabolism ; pathology