Risk Factors of Post-polypectomy Delayed Hemorrhage / 中山大学学报(医学科学版)

@#【Objective】To analyze the risk factors of delayed hemorrhage after colon polyp resection.【Methods】We retrospectively analyzed the clinical data of patients who underwent endoscopic polypectomy between January 2010 and December 2018，in which 106 patients with delayed hemorrhage were hemorrhage group，while 3 856 patients who did not bleed were the controlled group，and Logistic regression model was applied to screen the risk factors of hemorrhage after polyp resection.【Results】Of the 3 962 patients included in the study，106 had delayed post polypectomy hemorrhage， the hemorrhage rate being 2.68%. 89.6% delayed hemorrhage occurred within 3 days after polypectomy. Logistic regression analysis showed that the difference of polyp size，complicated hypertension，combined with chronic nephropathy，aspirin drug history and warfarin drug history in hemorrhage group and control group was statistically significant（P values were 0.011，0.009，0.028，0.001，0.023，respectively）.【Conclusion】The size of polyps，comorbidity of hypertension，chronic renal disease ，application of aspirin and warfarin were considered to be independent risk factors for post-polypectomy delayed hemorrhage，most of hemorrhage occurred within 3 days. According to the risk factors of patients，we may predict the risk of delayed hemorrhage.

High-resolution Peripheral Quantitative Computed Tomography for the Assessment of Bone Strength and Structure in Obstructive Sleep Apnea Patients / 中国医学科学院学报

To evaluate the bone strength and structure of patients with obstructive sleep apnea(OSA)by the high-resolution peripheral quantitative computed tomography(HR-pQCT)and to explore the relationship between OSA and osteoporosis. Male patients who visited the Sleep Respiratory Center of our hospital from August 2017 to January 2019 were consecutively recruited.Clinical data including the results of Epworth sleep scale(ESS)scoring and overnight polysomnography were collected.HR-pQCT was used to compare the differences in bone geometry,density,and microstructure between OSA patients and non-OSA people;also,the radius and tibia on the non-dominant side were measured to explore the relationship between OSA and osteoporosis. A total of 83 subjects were enrolled in the study.The number of patients in the mild,moderate,and severe OSA groups and non-OSA group were 21,18,34,and 10,respectively.There was no significant difference in age,blood pressure,ESS score,sleep stage,and sleep efficiency among these four groups(>0.05).Body mass index(BMI)and neck circumference were significantly different among these groups(=4.234,=0.008;=3.100,=0.031).There was no significant difference in the radius indicators(>0.05).For tibia,there were significant differences among the four groups in the cortical area(Ct.Ar)(=3.937,=0.011).There were also significant differences in the bone microstructural indicators including trabecular thickness(Tb.Th)and cortical thickness(Ct.Th)(=6.247,=0.001;=3.746,=0.014),which were significantly lower in the three OSA groups than in the control group.Pairwise comparisons showed that the Ct.Ar in the severe OSA group was significantly higher than that in the mild OSA group(=0.019)and Tb.Th in the control group was significantly higher than those in the mild and moderate OSA groups(=0.006,=0.001).Correlation analysis showed that,within a certain range,total volumetric bone mineral density(Tt.vBMD)and Tb.Th of radius and tibia were negatively correlated with age(=-0.312,=0.004;=-0.328,=0.002;=-0.265,=0.015;=-0.280,=0.010)and positively correlated with BMI(=0.240,=0.029;=0.369,=0.004;=0.299,=0.006;=0.416,=0.010).Stepwise multiple regression analysis showed that Tb.Th of radius and tibia were mostly correlated with BMI(=0.262,=0.008,=0.243,=6.270,=0.000;=0.494,=0.000,=0.186,=7.243,=0.000)and age(=-0.216,=0.030,=0.243,=6.270,=0.000;=-0.306,=0.003,=0.186,=7.243,=0.000).Tt.vBMD of radius had a certain correlation with sleep efficiency and with the decreasing nocturnal mean oxygen saturation caused by OSA(=0.312,=0.002, =-0.249,=0.012,=0.327,=7.482,=0.000). In non-elderly male populations,OSA mainly causes a decrease in Tb.Th and Ct.Th of the tibia.The changes in bone strength and structure are mainly related with age and body size and also have certain correlations with sleep efficiency and with the decreasing nocturnal mean oxygen saturation caused by OSA.

Clinical observation of femtosecond laser capsulorhexis with toric intraocular lens implantation / 眼科新进展

Objective To evaluate the clinical effect of femtosecond laser assisted cataract surgery with Toric IOL implantation on correcting astigmatism and IOL rotating stability.Methods A prospective,nonrandomized,controlled study was conducted in 68 patients (82 eyes) diagnosed as age-related cataract with more than 1.0 diopter (D) regular astigmatism,including 41 eyes undergoing Toric IOL implantation with femtosecond laser assisted cataract surgery,and the other eyes receiving Toric IOL with phacoemulsification.And observation was performed for the uncorrected visual acuity (UCVA) before operation and 6 months after operation,preoperative corneal astigmatism,anticipated and postoperative residual astigmatism 6 months after operation.Then,comparison was performed for the degree of Toric lens axis rotation,as well as the horizontal and vertical movement of the IOL and the degree of vertical deflection in the capsule at 1,3,and 6 months after operation.Results In the observation group,preoperative UCVA (logMAR),preoperative corneal astigmatism,postoperative BCVA and the residual astigmatism at 6 months after operation was 1.03 ± 0.32,(2.09 ± 0.73) D,0.13 ± 0.11 and (0.33 ± 0.27) D,respectively,while the corresponding data in the control group was 0.92 ± 0.40,(1.69 ± 0.64) D,0.13 ± 0.09,(0.26 ± 0.22) D;the postoperative visual acuity in both groups was significantly improved,and residual astigmatism was significantly decreased at 6 months after operation (all P ＜ 0.001).There was no significant difference in Toric lens axis after femtosecond laser assisted surgery and phacoemulsification at 1 month,3 months,6 months after operation (all P ＞ 0.05),but the differences in the IOL movement in horizontal and vertical direction were statistically significant at the different time-points (all P ＜ 0.05),and there was significant differences in the degree of vertical deflection (all P ＜ 0.05).Conclusion Both femtosecond laser assisted cataract surgery and phacoemulsification combined with Toric IOL can achieve a better stability and predictability.

Clinical effect of 3D-guided percutaneous hollow screw fixation for patients with Herbert Ⅰb-type scaphoid fractures / 局解手术学杂志

Objective To investigate the clinical value of individual design combined with 3D-guided percutaneous hollow screw fixation for patients with Herbert Ⅰb-type scaphoid fractures.Methods Totally 93 cases of Herbert Ⅰb-type scaphoid fractures patients who were admitted into our hospital from November 2015 to April 2017 were divided into the external fixation group(31 cases),the internal fixation group(29 cases)and the minimal invasion group(33 cases).The external fixation group was treated with cast immobilization;the internal fixation group was treated with open reduction and internal fixation;the minimal invasion group was treated with individual design combined with 3D-guided percutaneous hollow screw fixation.The time of bone union,return-to-work time,rateof bone union,wrist range of motion (ROM)and Mayo function score of the three groups were compared.Results The time of bone union,return-to-work time and wrist range of motion in the minimal invasion group were(6.7 ±0.9)weeks,(7.3 ±0.9)weeks and(103.8 ±5.9)°respectively,which were better than the other two groups with statistically significant difference(P<0.05).The bone union rate of the external fixation group,the internal fixation group,and the minimal invasion group were 83%,86.2%and 100%respectively.The difference between the minimal invasion group and the other two groups were statistically significant(P<0.05).The Mayo function score of the external fixation group,the internal fixation group, and the minimal invasion group were 71.0%,82.8% and 97.0% respectively.The difference between the minimal invasion group and the other two groups were statistically significant(P<0.05).Conclusion Individual design combined with 3D-guided percutaneous hollow screw fixation treatment has exact effect for Herbert Ⅰb-type scaphoid fractures with fast recovery,and it's worthy of wildly use.

Effect of 0.9-ms 1064-nm Nd:YAG laser combined with itraconazole for treatment of toenail onychomycosis / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of 0.9-ms 1064-nm Nd:YAG laser alone or combined with itraconazole for treatment of toenail onychomycosis.</p><p><b>METHODS</b>A total of 37 patients with onychomycosis (178 toenails) were randomly assigned to groups A and B, and each group was further divided into different subgroups according to the Scoring Clinical Index of Onychomycosis (SCIO) and Onychomycosis Severity Index (OSI) scoring. All the patients were treated with 0.9-ms Nd:YAG laser once a week for 8 times. The patients in group A were treated with laser alone, and those in group B were treated with laser combined with itraconazole. The clinical effect, clinical scores, appearance of the toenails and adverse reactions in the two groups were analyzed, and the patients' satisfaction rate was also investigated.</p><p><b>RESULTS</b>At the 12th months of follow-up, the clinical response rate and mycological cure rate in group A were 31.33% and 30.00%, respectively, similar to the rates in group B (35.79% and 41.18%, respectively) (P>0.05). After the treatments, the SCIO and OSI scores showed no significant changes in group A (P>0.05) but both increased significantly in group B (P<0.05). The response rates did not differ significantly among the subgroups with SCIO<12 or with OSI<16 (P>0.05), but showed significant differences among the subgroups with SCIO≥12 or with OSI≥16 (P<0.05). Of the total of 178 toenails, 33.71%, 74.72% and 70.79% toenails showed improvements in terms of clear nail growth, shape and color, respectively. The overall patients' satisfaction rate was 62.16%, and no adverse reactions related with the therapy were recorded in these patients.</p><p><b>CONCLUSION</b>For treatment of toenail onychomycosis, 0.9-ms 1064-nm Nd:YAG laser can effectively improve the aesthetic appearance of the toenails, and a combined treatment with Nd:YAG laser and itraconazole can be better option in severe cases of onychomycosis.</p>

Determination of six constituents in Shiyifang Vinum by HPLC / 中成药

AIM To establish an HPLC method for the content determination of six constituents in Shiyifang Vinum (Notoginseng Radix et Rhizoma,Dipsaci Radix,Carthami Flos,etc.).METHODS The content determination of notoginsenoside R1,ginsenoside Rg1,ginsenoside Rb1 and asperosaponin Ⅵ was performed on a 30℃ thermostatic Inertsil(R) ODS-3 C18column (4.6 mm ×250 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1％ phosphoric acid flowing at 1.0 mL/min in a gradient manner,and the detection wavelength was set at 203 nm.The content determination of brucine and strychnine was conducted on a 30 ℃ thermostatic Geminni(R) C18 110(A) column (4.6 mm × 250 mm,5 μm),with the mobile phase comprising of acetonitrile-mixed solution of 0.01 mol/L sodium heptanesulfonate and 0.02 mol/L potassium dihydrogen phosphate flowing at 1.0 mL/min in an isocratic elution manner,and the detection wavelength was set at 260 nm.RESULTS Six constituents showed good linear relationships within their own ranges (r ＞ 0.999 0),whose average recoveries were 98.52％-99.96％ with the RSDs of 2.0％-2.3％.CONCLUSION This simple,accurate and reproducible method can be used for the quality control of Shiyifang Vinum.

Comparison of different administration routes of saikosaponin in plasma pharmacokinetics and brain pharmacokinetics / 中国中药杂志

To evaluate the optimum administration routes of saikosaponin in the treatment of epilepsy by comparing the plasma pharmacokinetics and the brain pharmacokinetics after different administration routes of saikosaponin. After receiving saikosaponin in different administration routes, the mice were sacrificed to collect the blood and brain tissues. The acetonitrile and methanol (9∶1) were used to precipitate the plasma protein. The concentration of the SSa in mice plasma and brain was determined by UPLC-MS/MS, and the pharmacokinetic parameters, bioavailability, the brain targeting coefficient (Re) and the brain drug targeting index (DTI) were calculated with Kinetica software. The relative brain Re was 142.17% by intranasal administration, with DTI of 3.06, significantly higher than those by the injections; in addition, the brain DTI was 1.25 by gavage administration. The brain drug targeting of saikosaponin by intranasal administration was higher than that by injection and gavage administration, indicating the advantages of the intranasal administration on medicine absorption into the brain.

Evaluation of Brodifacoum-induced Toxicity by Metabonomics Approach Based on HPLC-TOF-MS / 法医学杂志

OBJECTIVES@#To analyse the metabolic changes in urine of rats with brodifacoum intoxication, and to reveal the molecular mechanism of brodifacoum-induced toxicity on rats.@*METHODS@#By establishing a brodifacoum poisoning rats model, the urine metabolic profiling data of rats were acquired using high performance liquid chromatography-time of flight mass spectrometry （HPLC-TOF-MS）. The orthogonal partial least squares analysis-discrimination analysis （OPLS-DA） was applied for the multivariate statistics and the discovery of differential metabolites closely related to toxicity of brodifacoum.@*RESULTS@#OPLS-DA score plot showed that the urinary metabolic at different time points before and after drug administration had good similarity within time period and presented clustering phenomenon. Comparing the urine samples of rats before drug administration with which after drug administration, twenty-two metabolites related to brodifacoum-induced toxicity were selected.@*CONCLUSIONS@#The toxic effect of brodifacoum worked by disturbing the metabolic pathways in rats such as tricarboxylic cycle, glycolysis, sphingolipid metabolism and tryptophan metabolism, and the toxicity of brodifacoum is characterized of accumulation effect. The metabonomic method based on urine HPLC-TOF-MS can provide a novel insight into the study on molecular mechanism of brodifacoum-induced toxicity.

Optimization of emollient formulation for treating atopic dermatitis by skin physiological index testing / 南方医科大学学报

<p><b>OBJECTIVE</b>To optimize the formulation of an emollient for treatment of atopic dermatitis prepared using ceramide, sodium hyaluronate, paeonol, and camellia-seed oil.</p><p><b>METHODS</b>The emollients with different ratios of the 4 components were designed according to the L9(34)orthogonal table with 4 factors and 3 levels. The efficacy of the prepared emollients was tested in 4-6 week-old BALB/c mouse models of atopic dermatitis to determine the optimal formulation of the emollient by evaluating skin water content, transepidermal water loss (TEWL), pharmacodynamics and skin irritation.</p><p><b>RESULTS</b>Range analysis of the orthogonal table and analysis of variance showed that ceramide and camellia seed oil contents had the greatest impact on the skin water content and TEWL, respectively, and the optimal composition of the emollient contained the 4 components at the ratios of D1E1F1G1. Pharmacodynamic experiments showed that at high, medium and low doses, the emollient with the optimal formulation significantly improved the skin water content, pH and TEWL in the mice (P<0.05) with similar effects in the positive control group (P>0.05) and a skin irritation test score of 0.</p><p><b>CONCLUSION</b>The emollient we prepared can significantly improve skin water content, pH and TEWL in the mouse model of atopic dermatitis without skin irritations.</p>

Identification of Methamphetamine Abuse and Selegiline Use: Chiral Analysis of Methamphetamine and Amphetamine in Urine / 法医学杂志

Objective To study the content variation of selegiline and its metabolites in urine, and based on actual cases, to explore the feasibility for the identification of methamphetamine abuse and selegiline use by chiral analysis. Methods The urine samples were tested by chiral separation and LC-MS/MS method using CHIROBIOTICTM V2 chiral liquid chromatography column. The chiral analysis of metham-phetamine and amphetamine were performed on the urine samples from volunteers of selegiline use and drug addicts whom suspected taking selegiline. Results After 5 mg oral administration, the positive test time of selegiline in urine was less than 7 h. The mass concentrations of R(-)-methamphetamine and R(-)-amphetamine in urine peaked at 7 h which were 0.86μg/mL and 0.18μg/mL and couldn't be de-tected after 80 h and 168 h, respectively. The sources of methamphetamine and amphetamine in the urine from the drug addicts whom suspected taking selegiline were analysed successfully by present method. Conclusion The chiral analysis of methamphetamine and amphetamine, and the determination of selegi-line's metabolites can be used to distinguish methamphetamine abuse from selegiline use.

Efficacy and safety of long pulse 1064 nm Nd:YAG laser for treatment of onychomycosis of the toenails / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of long pulse 1064 nm Nd:YAG laser therapy in the treatment of onychomycosis of the toenails.</p><p><b>METHODS</b>A total of 104 patients with onychomycosis (461 toenails) were divided by age into ≥60 years group and <60 years group, and each group was further divided into subgroups according to Scoring Clinical Index of Onychomycosis (SCIO) scoring and the location of the compromised toenails. All the toenails were treated with 10 to12 sessions of long pulse 1064 nm Nd:YAG laser therapy at the interval of 1 week. All the patients were followed up for 48 weeks after the initial treatment to assess the clinical efficacy and adverse reactions.</p><p><b>RESULTS</b>The overall clinical response rate in these patients was 72.5% by the end of the 48-week follow-up. In patients aged <60 years, the clinical response rate and mycological cure rate were significantly higher than the rates in patients aged ≥60 years (P<0.05). No significant differences were observed in the response rates between different SCIO subgroups (P>0.05); the 2nd to 4th toenails showed better outcomes after the therapy than the 1st and 5th toenails (P<0.05). No adverse reactions related with the therapy were recorded in these patients.</p><p><b>CONCLUSION</b>Long pulse 1064 nm Nd:YAG laser is an effective and safe approach for treatment of onychomycosis of the toenails.</p>

Mechanism of heat shock protein 90 for regulating 26S proteasome in hyperthermia / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the mechanism by which heat shock protein 90 (HSP90) regulates 26S proteasome in hyperthermia.</p><p><b>METHODS</b>Hyperthermic HepG2 cell models established by exposure of the cells to 42 degrees celsius; for 3, 6, 12, and 24 h were examined for production of reactive oxygen species (ROS) and cell proliferation, and the changes in Hsp90α and 26S proteasome were analyzed.</p><p><b>RESULTS</b>ROS production in the cells increased significantly after hyperthermia (F=28.958, P<0.001), and the cell proliferation was suppressed progressively as the heat exposure time extended (F=621.704, P<0.001). Hyperthermia up-regulated Hsp90α but decreased the expression level (F=164.174, P<0.001) and activity (F=133.043, P<0.001) of 26S proteasome. The cells transfected with a small interfering RNA targeting Hsp90α also showed significantly decreased expression of 26S proteasome (F=180.231, P<0.001).</p><p><b>CONCLUSION</b>The intracellular ROS production increases as the hyperthermia time extends. Heat stress and ROS together cause protein denature, leading to increased HSP90 consumption and further to HSP90 deficiency for maintaining 26S proteasome assembly and stability. The accumulation of denatured protein causes unfolded protein reaction in the cells to eventually result in cell death.</p>

Biomonitoring of 33 Elements in Blood and Urine Samples from Coastal Populations in Sanmen County of Zhejiang Province / 法医学杂志

OBJECTIVE@#To determine the normal reference values of 33 elements, Ag, Al, As, Au, B, Ba, Be, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, Hg, Li, Mg, Mn, Mo, Ni, Pb, Rb, Sb, Se, Sr, Th, Ti, Tl, U, V, Zn and Zr, in the blood and urine samples from the general population in Sanmen County of Zhejiang province, a typical coastal area of eastern China.@*METHODS@#The 33 elements in 272 blood and 300 urine samples were determined by inductively coupled plasma-mass spectrometry (ICP-MS). The normality test of data was conducted using SPSS 17.0 Statistics. The data was compared with other reports.@*RESULTS@#The normal reference values of the 33 elements in the blood and urine samples from the general population in Sanmen County were obtained, which of some elements were found to be similar with other reports, such as Co, Cu, Mn and Sr, while As, Cd, Hg and Pb were generally found to be higher than those previously reported. There was a wide variation between the reports from different countries in blood Ba.@*CONCLUSION@#The normal reference values of the 33 elements in the blood and urine samples from the general population in Sanmen County are established, and successfully applied to two poisoning cases.

Relationship between TMPRSS2: ERG and the pathological grade of prostate cancer / 中华男科学杂志

<p><b>OBJECTIVE</b>To study the relationship between TMPRSS2: ERG gene fusion and the pathological grade of prostate cancer (PCa).</p><p><b>METHODS</b>We collected fresh prostatic tissue samples from 62 patients with PCa and another 10 with benign prostatic hyperplasia ( BPH) and included 9 cancer cell strains as the control. We examined the TMPRSS2:ERG fusion gene in the PCa samples by nest RT-PCR, compared the Gleason scores between the TMPRSS2:ERG-positive and -negative cases, and analyzed the association of TMPRSS2: ERG fusion with the pathological features of PCa.</p><p><b>RESULTS</b>The TMPRSS2: ERG fusion gene was detected in 28 (45.16%) of the PCa cases, but in none of the 10 BPH cases or the 9 cancer cell strains. No statistically significant differences were found in the Gleason scores between the TMPRSS2:ERG-positive and -negative cases (Z = -0.609, P = 0.542), but the primary Gleason score was markedly higher in the former than in the latter (Z = -2.600, P = 0.009). Univariate logistic regression analysis showed that TMPRSS2:ERG was associated with the cribriform growth pattern (OR = 6.250, P = 0.002), foamy gland morphology (OR = 6.666, P = 0.023), and signet-ring cells (OR = 3.240, P = 0.035), but multivariate logistic regression analysis manifested that it was associated with the cribriform growth pattern only (OR = 3.750, P = 0.033).</p><p><b>CONCLUSION</b>TMPRSS2:ERG gene fusion was associated with higher pathological grades of prostate cancer.</p>

A3-A3 side-to-side anastomosis combined with endovascular intervention in recurrent complex anterior artery aneurysm: a case report and literature review / 浙江大学学报·医学版

A 28-year-old female patient was admitted to the Second Affiliated Hospital, Zhejiang University School of Medicine, with sudden headache and vomiting for 1 day. CT scan conducted at emergency revealed subarachnoid hemorrhage, whereas digital subtraction angiography demonstrated a wide-neck aneurysm located at A1 segment of the left anterior cerebral artery. The aneurysm was totally coiled using stent assistance, which, however, was recanalized at 3 month follow-up. This patient was then subjected to aneurysm and parent artery occlusion after bypass of the bilateral A3 segments, who recovered well and discharged without ischemic complications.

Chlorpyrifos Determined in Human Blood by UPLC-MS/MS and Its Application in Poisoning Cases / 法医学杂志

OBJECTIVE@#To determine the chlorpyrifos in human blood by liquid chromatography-tandem mass spectrometry and to validate its application in poisoning cases.@*METHODS@#The samples were extracted by a simple one-step protein precipitation procedure. Chromatography was performed on a Capcell Pack C18 MGII column (250 mm x 2.0 mm, 5 μm) using an isocratic elution of solvent A (0.1% formic acid-water with 2 mmol/L ammonium acetate) and solvent B (methanol with 2 mmol/L ammonium acetate) at 5:95 V:V).@*RESULTS@#The linear ranged from 5 to 500 ng/mL (r = 0.998 7). The limit of detection (LOD) and the lower limit of quantification (LLOQ) were 2 ng/mL and 4 ng/mL, respectively. For this method, the precision and accuracy of intra-day and inter-day were < 10% and 97.44%-101.10%, respectively. The results in stability test of long-term frozen were satisfied. The matrix effect, recovery and process efficiency were 64.97%-86.81%, 76.70%-85.52%, and 55.57%-66.58%, respectively.@*CONCLUSION@#This method can provide a rapid approach to chlorpyrifos extraction and determination in toxicological analysis of forensic and clinical treatment.

Normal Range of 33 Elements in Blood Samples from General Population in Hunan Province / 法医学杂志

OBJECTIVE@#To determine the normal range of the 33 elements (Li, Be, B, Mg, Al, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Zr, Mo, Ag, Cd, Sb, Cs, Ba Au, Hg, Tl, Pb, Th and U) in human whole blood of general population in Hunan province.@*METHODS@#Blood samples were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) to determine the normal range. The influences of district, gender and age to the element content in blood samples were also observed.@*RESULTS@#The normal range of 33 elements in blood samples from general population in Hunan province were obtained. Gender was shown to statistically influence the concentrations of B, Mg, Ca, Ti, Mn, Fe, Co, Cu, Zn, As, Se, Rb, Sr, Ag, Cd, Cs, Hg and Pb (P < 0.05), while age was shown to influence the concentrations of Co, Ni, Cs and Hg in women (P < 0.05) as well as Cu, Se and Hg in men (P < 0.05).@*CONCLUSION@#Although there are variables in different districts, the normal ranges of trace element in blood of the four cities in Hunan province are established.

Releasing aqueous humor of anterior chamber to treat early elevated lOP after lCL implantation / 国际眼科杂志(Guoji Yanke Zazhi)

To explore the effect of releasing aqueous humor of anterior chamber through lateral incision of cornea in treating early elevated intraocular pressure ( lOP ) after implantation of implantable collamer lens ( lCL) .METHODS: Patients with elevated lOP were analyzed after lCL implantation. When the lOP>25mmHg, aqueous humor was released slowly through lateral incision of cornea, and made the lOP reduce to 10 ~13mmHg. After operation, lOP was measured every 2h. The releasing of aqueous humor was repeated until the lOP was decreased to normal.RESULTS: One hundred sixty - seven patients ( 330 eyes) were implanted lCL, while the lOP of 32 patients (62 eyes) was higher than 25mmHg after lCL implantation. Viscoelastic material was found in aqueous humor of most of high lOP patients, and the lOP of 48 eyes did not increase again through releasing aqueous humor once. The lOP of all these eyes was decreased to normal through releasing aqueous humor in 3 times at most. There were no abnormal in postoperative follow-up.CONCLUSlON:The main reason of early elevated lOP after lCL implantation is the remaining of viscoelastic material of eyes. Releasing aqueous humor through lateral incision of cornea can decrease lOP effectively. lt is a simple, safe, painless and repetition, which the patients are willing to accept.

Correlations of β-catenin, Ki67 and Her-2/neu with gastric cancer

OBJECTIVE@#To study the clinical pathologic characteristics of β-catenin, Ki67 and Her-2/neu in gastric cancer and the correlation of β-catenin and Ki67 to the protein expression and gene conditions of Her-2/Neu.@*METHODS@#The protein expression of β-catenin, Ki67 and Her-2/Neu was detected by immunohistochemistry in 101 cases of gastric cancer and the gene conditions of Her-2/Neu by fluorescence in situ hybridization (FISH).@*RESULTS@#The protein expression of β-catenin, Ki67 and Her-2/Neu had close relationship with the clinical pathologic characteristics of gastric cancer. The β-catenin and Ki67 had obvious correlation to the differentiation, infiltration and lymphatic metastasis of the gastric cancer (P<0.05). The Ki67 had close relationship with the tumor-node-metastasis staging staging of gastric cancer (P<0.05). Her-2/Neu had close relationship with the differentiation and tumor-node-metastasis staging of gastric cancer (P<0.05) but had no relationship with the infiltration and lymphatic metastasis of the gastric cancer (P<0.05). The protein expression of Ki67 had significantly positive correlation to the protein expression and gene amplification conditions of Her-2/Neu (r=0.567, P<0.05 for protein; r=0.304, P<0.05 for gene).@*CONCLUSIONS@#Combined detection of β-catenin, Ki67 and Her-2/Neu can be used as a reliable method to help the observation of biological behavior, diagnosis and prognosis of gastric cancer, and Ki67 can be used to serve the preliminary screening of Her-2/Neu gene state.

Comparison of anti-bacterial activity of three types of di-O-caffeoylquinic acids in Lonicera japonica flowers based on microcalorimetry / 中国天然药物

The anti-bacterial activities of three types of di-O-caffeoylquinic acids (diCQAs) in Lonicera japonica flowers, a traditional Chinese medicine (TCM), on Bacillus shigae growth were investigated and compared by microcalorimetry. The three types of diCQAs were 3, 4-di-O-caffeoylquinic acid (3, 4-diCQA), 3, 5-di-O-caffeoylquinic acid (3, 5-diCQA), and 4, 5-di-O-caffeoylquinic acid (4, 5-diCQA). Some qualitative and quantitative information of the effects of the three diCQAs on metabolic power-time curves, growth rate constant k, maximum heat-output power Pm, and the generation time tG, total heat output Qt, and growth inhibitory ratio I of B. shigae were calculated. In accordance with a thermo-kinetic model, the corresponding quantitative relationships of k, Pm, Qt, I and c were established. Also, the half-inhibitory concentrations of the drugs (IC50) were obtained by quantitative analysis. Based on the quantity-activity relationships and the IC50 values, the sequence of inhibitory activity was 3, 5-diCQA > 4, 5-diCQA > 3, 4-diCQA. The results illustrate the possibility that the caffeoyl ester group at C-5 is the principal group that has a higher affinity for the bacterial cell, and that the intramolecular distance of the two caffeoyl ester groups also has an important influence on the anti-bacterial activities of the diCQAs.