High level of serum complement 3 is a risk factor for vascular stenosis progression in TA patients receiving tocilizumab: a prospective observational study.

BACKGROUND: The IL-6R antibody tocilizumab has been proven effective in treating Takayasu arteritis (TA). However, some patients show silent vascular stenosis progression (VSP) despite treatment with tocilizumab. The aim of the study was to explore the related risk factors of VSP in patients treated with tocilizumab. METHODS: Patients receiving tocilizumab were enrolled from the prospective living ongoing East China Takayasu Arteritis cohort. Their medical information was uniformly recorded with a homogenized evaluation method. Magnetic resonant angiography or computed tomographic angiography was employed to monitor VSP during the follow-up period, and Cox regression analysis was performed to explore the related risk factors. RESULTS: Thirty-eight patients were enrolled, among whom 18 (47.4%) experienced VSP, and seven and three patients experienced new and worsened vascular ischemic symptoms and events (VISE) during follow-up, respectively. The median period for VSP occurrence was 6.9 months during follow-up. Patients with VSP showed higher levels of baseline complement 3 (C3) than those in the patients without VSP. Multivariate Cox regression analysis revealed baseline C3 level (hazard ratio [HR] = 7.05, 95% confidence interval: 1.50-33.07, p = 0.013) was independently associated with VSP, with a cut-off value of 1.22 g/L. CONCLUSIONS: 47.4% of TA patients treated with tocilizumab would suffer VSP. A high C3 level is a risk factor for VSP in TA patients receiving tocilizumab, which may facilitate the option of tocilizumab in the future.

Efficacy analysis of subcutaneous injection of granulocyte-macrophage colony-stimulating factor for prevention of invasive fungal disease in patients with multiple myeloma / 白血病·淋巴瘤

Objective:To explore the efficacy of subcutaneous injection of granulocyte-macrophage colony-stimulating factor (GM-CSF) in preventing invasive fungal disease (IFD) in patients with multiple myeloma (MM).Methods:The clinical data of 222 patients who were admitted to the Second Hospital of Harbin Medical University from January 2015 to June 2021 were retrospectively analyzed. The patients was given GM-CSF (3-5 μg·kg -1·d -1, GM-CSF group) or granulocyte colony-stimulating factor (G-CSF, 2-5 μg·kg -1·d -1, G-CSF group) when neutrophils (ANC) ≤1.5×10 9/L after induction chemotherapy. Patients were discontinued when white blood cell count (WBC) ≥10.0×10 9/L. The incidence of IFD (including confirmed, clinical and proposed diagnosis) and breakthrough invasive fungal infections was compared between the two groups. Results:The incidence of IFD was 8.1% (18/222) in all patients. The incidence of IFD was 3.5% (3/85) and 10.9% (15/137) in the GM-CSF and G-CSF groups, respectively, and the difference between the two groups was statistically significant ( χ2 = 3.88, P = 0.049). In 9 patients of GM-CSF group receiving fungal infection prophylaxis and in 15 patients of G-CSF group receiving fungal infection prophylaxis, the incidence of breakthrough invasive fungal infections was 0 and 7 cases, respectively, and the difference between the two groups was statistically significant ( P = 0.022). Conclusions:GM-CSF application in MM patients can reduce the incidence of IFD and breakthrough invasive fungal infections.

Associations of habitual fish oil use with risk of SARS-CoV-2 infection and COVID-19-related outcomes in UK: national population based cohort study

ObjectivesTo prospectively investigate the associations of habitual fish oil use with Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, hospital admission, or mortality with Corona Virus Disease-19 (COVID-19) in a large-scale cohort. DesignProspective population-based cohort study. SettingUK Biobank. ParticipantsA total of 110 440 participants aged 37 -73 years who completed a questionnaire on supplement use, which included fish oil at baseline were enrolled between 2006 and 2010 and followed up until 2022. Main exposureAll participants filled out questionnaires about the habitual use of supplements, including fish oil. Main outcome measuresSARS-CoV-2 infection, COVID-19 hospital admission and COVID-19 mortality. ResultsAt baseline, 29 424 (26.6%) of the 110 440 participants reported habitual use of fish oil supplements. The multivariable adjusted hazard ratios for habitual users of fish oil versus non-users were 0.95 (0.93 to 0.98) for SARS-CoV-2 infection among participants with follow-up time less than 12.1 years but no significant associations were observed for participants with follow-up time more than 12.1 years. For COVID-19-related outcomes, the hazard ratios were 0.79 (95% confidence interval 0.71 to 0.88) for COVID-19 hospital admission and 0.72 (0.60 to 0.87) for COVID-19 mortality. For COVID-19-related outcomes, the association seemed to be stronger among those with longstanding illness. The Cox proportional hazard analysis after propensity-score matching yielded consistent results. ConclusionsHabitual fish oil supplement is associated with a lower risk of hospital admission and mortality with COVID-19, but not associated with SARS-CoV-2 infection in the population with more than 12.1 years of follow-up.

Preparation and in vitro release of ivabradine hydrochloride elementary osmotic pump tablets / 中国药科大学学报

@#In this study, ivabradine hydrochloride (IVB) was prepared as elementary osmotic pump tablets whose administration frequency was reduced to once daily. The dissolution method was developed, and effects on drug release profiles were evaluated by single factor analysis involving suspending agents, osmotic active agents and aging process. Orthogonal test was carried out at 3 levels on 3 factors including the amount of polyoxyethylene (PEO) in the core, polyethylene glycol (PEG) percentage and weight increase of controlled-release film coatings. The final formulation consisted of IVB (16.25 mg), PEO N80 (60 mg), hypromellose E5 (10 mg), lactose (111.75 mg), magnesium stearate (2 mg); and the film coatings consisted of PEG (15%), cellulose acetate (85%), with a weight increase of 7.5%. In vitro drug release behaviors were investigated. Prepared tablets exhibited similar release profiles in different pH dissolution media, with no risk of dose dumping in 40% ethanol solutions. The osmotic pressure differences inside and outside the membrane drove drug release. IVB osmotic pump tablets could reduce the frequency of administration and improve patients'' compliance, thus with better application values.

SMYD3-PARP16 axis accelerates unfolded protein response and mediates neointima formation

Neointimal hyperplasia after vascular injury is a representative complication of restenosis. Endoplasmic reticulum (ER) stress-induced unfolded protein response (UPR) is involved in the pathogenesis of vascular intimal hyperplasia. PARP16, a member of the poly(ADP-ribose) polymerases family, is correlated with the nuclear envelope and the ER. Here, we found that PERK and IRE1

Validation study of a prostate health index-based nomogram model for predicting prostate cancer / 中华检验医学杂志

Objective@#To validate a nomogram model based on prostate health index (PHI) for predicting prostate cancer (PCa). @*Methods@#The pre-operation serum and clinical data were collected for suspected PCa patients (aged 34 to 90 years), who visited Peking University First Hospital from August 2015 to May 2017 and received transrectal ultrasound-guided prostate biopsy. A total of 391 suspected PCa with total prostate-specific antigen (tPSA)>4 ng/ml were selected into this study, including 235 cases with tPSA level of 4-10 ng/ml and 156 cases with tPSA>10 ng/ml. The p2PSA was tested in all cases and then PHI was calculated. The biopsy results were considered as the gold standard to diagnose PCa. The nomogram model established in Shanghai based on PHI, age and prostate volume was validated in all cases enrolled in this study. Receiver operator curves (ROC) were used to assess the ability of nomogram model to predict PCa. @*Results@#Of 391 male patients included in this study, 175(44.8%)were finally diagnosed as PCa. ROC curves indicated that, the area under the curve (AUC) of the nomogram model for predicting PCa among 391 cases was higher than that of the traditional indicator tPSA (AUC: 0.786 vs 0.578, P<0.000 1). And f/t(AUC: 0.786 vs 0.672, P=0.000 2). For those people with tPSA level of 4-10 ng/ml, the AUC of the nomogram model was also higher than that of tPSA (AUC: 0.720 vs 0.513, P=0.000 3) and f/t(AUC: 0.720 vs 0.626, P=0.042 5). @*Conclusion@#The nomogram model based prostate health index (PHI) was validated to have a good auxiliary diagnostic value for PCa in our center.(Chin J Lab Med, 2018, 41: 536-540)

Analysis of curative effect of methylprednisolone pulse combined with mycophenolate mofetil in treatment of systemic lupus erythematosus in children / 吉林大学学报(医学版)

Objective:To investigate the efficacy and side effects of combination of methylprednisolone pulse (MDP)and mycophenolate mofetil(MMF)in the treatment of systemic lupus erythematosus(SLE)in the children.Methods:A total of 16 cases of children with SLE,lupus nephritis(LN)and type Ⅳ diffuse glomerular mesangial proliferative glomerulonephritis diagnosed by pathology were selected.Among them 7 cases were given MDP combined with MMF,and received intermittently oral small dose of corticosteroids(GC),and they were used as pulse therapy group;9 cases were given oral GC and transitional reduction,and they were used as traditional therapy group.SLEDAI was used for the evaluation of the curative effect,and body mass index(BMI),blood pressure(BP),intraocular pressure(IOP),triglycerides(TG),fasting blood glucose(FBG)and serum calcium (Ca)were analyzed during the treatment of 1 year and then the efficacies and side effects of the children in two groups were compared.Results:The SLEDAI scores,levels of complements C3 and C4,24 h urinary protein outcome of the children in pulse therapy group were better than those in traditional therapy group;the differences in SLEDAI scores were statistically significant after treating for 3 and 6 months between two groups(P<0.05);ESR and 24 h urinary protein outcome had significant differences after 6 months of treatment between two groups(P<0.05);the complement C3 difference was statistically significant between two groups(P<0.05)after 12 months of treatment.Compared with traditional therapy group,the BMI,IOP,TG,FBG of the children in pulse therapy group after treatment were decreased(P<0.05);the BMI,IOP and TG had significant differences after treating for 12 months between two groups(P<0.05);the differences in FBG were statistically significant after treating for 6 and 12 months between two groups(P<0.05).The Ca of the patients in pulse therapy group was higher than that in traditional therapy group,but there was no statistically significant difference(P>0.05).The SPB and DBP of the patients in pulse therapy group were higher than those in traditional therapy group,but the differences were not statistically significant(P>0.05).At the same time,gastrointestinal ulcers,bleeding,perforation, pancreatitis,cardiovascular events (such as cardiac arrhythmias)didn't occur in two groups. Conclusion:Compared with traditional therapy,the combined treatment of MDP and MMF can control the symptoms of SLE early and rapidly,and reduce the viscera damage.To choose 1 year after treatment as observation point,its disease activity is lower than the traditional therapy,and the curative effect is better than oral GC transitional reduction with immunosuppressant therapy.The GC-related side effects are lower than traditional therapy.

Research advances in diagnosis of non-alcoholic fatty liver disease / 中华肝脏病杂志

Non-alcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases in clinical practice, and the spectrum of NAFLD includes nonalcoholic simple fatty liver, nonalcoholic steatohepatitis, and liver cirrhosis. Some patients may even progress to hepatocellular carcinoma. At present, the gold standard for the diagnosis of NAFLD is liver biopsy, but since this is an invasive examination and has high costs, its application is limited in clinical practice. More and more studies have focused on noninvasive diagnostic methods for NAFLD, including serological markers, fatty liver predictive model, and imaging examinations. Emerging diagnostic techniques, including genomics, proteomics, glycomics, and metabolomics, also play an important role in the diagnosis of NAFLD.

Efficacy and safety of IA regimen containing different doses of idarubicin in de-novo acute myeloid leukemia for adult patients / 中华血液学杂志

Objective@#To investigate the efficacy and safety of IA regimen which contains idarubicin (IDA) 8 mg/m2, 10 mg/m2 or 12 mg/m2 as induction chemotherapy for adult patients with de-novo acute myeloid leukemia (AML) .@*Methods@#A total of 1 215 newly diagnosed adult AML patients, ranging from May 2011 to March 2015 in the First Affiliated Hospital of Soochow University and other 36 clinical blood centers in China were enrolled in the multicenter, single-blind, non-randomized, clinical controlled study. To compare the response rate of complete remission (CR) , adverse events between different dose idarubicin combined with cytarabine (100 mg/m2) as induction chemotherapy in newly diagnosed patients of adult AML.@*Results@#Of 1 207 evaluable AML patients were assigned to this analysis of CR rate. The CR rates of IDA 8 mg/m2 group, IDA 10 mg/m2 group and IDA 12 mg/m2 group were 73.6% (215/292) , 84.1% (662/787) and 86.7% (111/128) , respectively (P<0.001) . After adjusted for age, blast ratio of bone marrow, FAB classification and risk stratification, the odds ratios (95% CI) of IDA 10 mg/m2 group and IDA 12 mg/m2 group were 0.49 (0.34-0.70) and 0.36 (0.18-0.71) , as compared with the IDA 8 mg/m2 group (P<0.001, P=0.003) . In the intermediate and favorable groups, CR rates was 76.5% (163/213) , 86.9% (506/582) and 86.1% (68/79) in different doses of IDA (P=0.007) . Interestingly, IA regimen with IDA 10 mg/m2 was the only beneficial factor affecting CR in this group after adjusted for age, blast ratio of bone marrow and FAB classification[OR=0.47 (95% CI 0.31-0.71) , P<0.001]. CR rates in adverse group was 50.0% (18/36) , 60.6% (43/71) and 81.8% (18/22) respectively (P=0.089) . However, the odds ratios (95% CI) of IDA 12 mg/m2 when compared with the IDA 8 mg/m2 was 0.22 (0.06-0.80) , after adjusted for age, blast ratio of bone marrow and FAB classification. The median time (days) of neutrophil count less than 0.5×109/L in IDA 8 mg/m2 group, IDA 10 mg/m2 group and IDA 12 mg/m2 group were 14 (11-18) , 15 (11-20) and 18 (14-22) , respectively (P=0.012) and of platelet count lower than 20×109/L were 14 (7-17) , 15 (11-20) and 17 (15-21) , respectively (P=0.001) . The incidences of lung infection in the three groups were 9.8%, 13.5% and 25.2%, respectively (P<0.001) .@*Conclusions@#For young adult patients (aged 18-60 years) with AML in China, intensifying induction therapy with idarubicin 10 mg/m2 is clinically superior to IDA 8 mg/m2 and IDA 12 mg/m2 in favorable intermediate AML subgroup. However, idarubicin 12 mg/m2 is more suitable to adverse AML subgroup.

Clinicopathological features and differential diagnosis of metanephric adenoma:a re-port of sixteen cases / 北京大学学报(医学版)

Objective:To study the clinicopathological features and differential diagnosis of metaneph-ric adenoma (MA).Methods:The clinicopathological data of 16 cases with MA diagnosed and treated in Peking University First Hospital from 2004 to 2016 were retrospectively analyzed,and the clinical characteristics,pathologic parameters,differential diagnosis,treatment options and prognosis of MA were analyzed with literature review.Results:The patients included 10 females and 6 males.The age of pa-tients ranged from 14 to 83 years (mean =33.7 years).The partial nephrectomy was carried out for most patients.All cases were located in renal codex with 3 growing into the renal sinus.Histologically,the tumor was composed of tubules,papillary or glomeruloid structures and psammoma bodies were focally seen.Immunohistochemical study showed that all the cases expressed vimentin,and 94% cases ex-pressed CD57,63% WT1,75% AE1 /AE3,19% cytokeratin 7 (CK7 )and 13%α-methylacyl-CoA racemase (AMACR),and negative expressions for MA included CD10,neuron-specific enolase (NSE) and CD56.Follow-up information from 1 to 125 months was available in all the patients;and none of the patients showed any evidence of recurrence and metastasis.Conclusion:The benign tumor characteris-tics of MA are not obvious for preoperative imaging diagnosis,and the diagnosis of MA should be based on the unique pathological features.Positive immunostain of CD57 is a useful indicator for MA diagnosis and differential diagnosis.The partial nephrectomy surgical treatment can achieve good clinical cure with good prognosis.

Current status and prospects of the immune pathogenesis and treatment of IgA vasculitis / 中华实用儿科临床杂志

IgA vasculitis (IgAV) is a common systemic small-sized vessel vasculitis.It's characterized by non-thrombocytopenic palpable purpura,arthralgia/arthritis,bowel angina,and nephritis,but some details of etiology and pathogenesis is not very clear.The disease course is usually benign and self-limited,however,it is necessary to discuss the therapy of severe or chronic cases,especially there is not enough evidence-based basis for using key drugs to IgAV.Excellent clinical trails is expected to establish scientific system of prediction and evaluation of disease course,which will be helpful to individualize treatment of IgAV.

Screening for risk factors of stroke in people with family history of stroke / 天津医药

Objective To investigate the characteristics of cerebral vascular imaging and risk factors of stroke in popu?lation with family history of stroke in rural areas of Ji County, Tianjin. Methods The volunteers with family history of stroke were recruited in the study to undergo computed tomography and computed tomography angiography (CTA) of head as well as physical and laboratory examinations. A total of 281 subjects, including 153 male and 128 female, underwent exami?nation, and were divided into stroke group and non-stroke group. Results The detection rates were significantly higher in male subjects than those of female subjects, including smoking rate, drinking rate, educational level, and decreased level of high density lipoprotein cholesterol (HDL-C), whereas the detection rate of high level of triacylglycerol (TG) was significant?ly higher in female than that of male subjects (P<0.05). There were 38 subjects in stroke group. The age, internal carotid ar?tery calcification rate (ICAC) and internal carotid artery tortuosity (ICAT) rate were significantly higher in stroke group than those of non-stroke group (P<0.05) . The results of multivariate Logistic regression analysis indicated that age, hyperten?sion, ICAC, and ICAT were independent risk factors for stroke. Conclusion For population with family history of stroke, age, hypertension, ICAC and ICAT were risk factors of stroke.

Lymph node metastasis and prognostic analysis of 354 cases of T1 breast cancer / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To analyze the characteristics of lymph node metastasis and prognosis in patients with T1 breast cancer.</p><p><b>METHODS</b>The clinicopathological data of 354 patients with T1 breast cancer after standard treatment from March 2007 to September 2011 were collected to analyze the relationship between the clinical characteristics of T1 breast cancer, lymph node metastasis and prognostic features.</p><p><b>RESULTS</b>In the 354 patients with T1 breast cancer, 105 patients (29.7%) had lymph node metastasis, among them 73 cases (69.5%) had 1-3 lymph node metastasis, and 32 cases (30.5%) had more than 4 lymph node metastasis. The lymph node metastasis rate was 8.3% in T1a patients, 39.7% in T1b patients, and 30.4% in T1c cases (P = 0.005). Pairwise comparison showed that the difference of lymph node metastasis rate between T1a, T1b and T1c patients was statistically significant (P = 0.001 and P = 0.006, respectively). The difference of lymph node metastasis rates in T1b and T1c patients was statistically insignificant (P = 0.171). In the 354 patients of T1 breast cancer, 92 patients had vascular tumor thrombi and their lymph node metastasis rate was 71.7%, while the lymph node metastasis rate in 262 patients without vascular tumor thrombus was 14.9% (P < 0.001). The median follow-up was 49 months (range 27-81 months). 12 patients developed recurrence, and 3 patients died, one of them died of cerebrovascular accident. The 4-year disease-free survival for all patients was 96.6%, and the 4-year overall survival rate was 99.2%.</p><p><b>CONCLUSIONS</b>There is a correlation between vascular tumor thrombus, tumor size and lymph node metastasis rate. The lymph node metastasis rate is lower in T1a patients and relatively higher in T1b/c patients. Compared with patients without vascular tumor thrombus, the T1 breast cancer patients with vascular tumor thrombi have a higher lymph node metastasis rate. Generally speaking, there is a still good prognosis in patients with T1 breast cancer.</p>

Coronary arterial lesions in Kawasaki disease: a follow-up of 787 cases / 中华风湿病学杂志

Objective To investigate the coronary arterial lesions (CAL) in Kawasaki disease (KD) in Jilin Province and Inner Mongolia Autonomous Region from 1999 through 2012 and evaluate the influence of glucocorticoids (GCs) on prognosis.Methods We performed a retrospective study among patients of KD in Jilin Province and Inner Mongolia Autonomous Region from 1999 to 2012,in order to observe CAL in KD,the incidence of sequelae and the influence of CGs on disease outcome.Comparison between groups was carried out by Chi-square test.Results Eight hundred and ten KD cases were reported from 32 hospitals and 787 patients accepted an Echo examination,as the main objective of this study.Fivehundred and forty were boys and 247 were girls,with the male to female ratio of 2.19:1,of which 498 cases (63.3％) had CAL.Most CAL occurred in patients at 58 day to 14 year old (2.7±2.4).The most common abnormality was CAL including dilatation (49.5％) and stenosis (13.4％).Compared incomplete to complete KD,the result showed that the occurrence of CAL was similar between these two groups,no significant differences could be found between different gender.Nineteen (2.4％) of them had cardiac sequelae and the male/female ratio was 3.67:1.The younger the age,the higher the incidence of cardiac sequelae.The most frequent cardiac sequelae was coronary artery dilatation.GCs therapy could increase the occurrence of CAL [80.2％(97/121) vs 62.6％ (419/666),x2=8.71,P＜0.05].Conclusion CAL is not different between patients with complete or incomplete KD and the occurrence of CAL is not associated with gender,but with age.The younger the age,the higher the incidence of CAL and the higher the incidence of cardiac sequelae.It is possible that patients treated with GCs are prone to CAL.

The correlation analysis of the heart rate variability and executive function in patients with insomnia / 中华行为医学与脑科学杂志

Objective To investigate status about the heart rate variability and executive function in patients with insomnia.Methods The study involves 165 cases of patients with insomnia and 92 cases normal.The Pittsburgh Sleep Quality Index (PSQI) screening for insomnia,Wisconsin Card Sorting Test (WCST) for the assessment of executive function and Self-generate Physiological Coherence System (SPCS) were used to collect the data of heart rate variability (HRV).Results The SDNN,RMSSD,TP,LF,HF of HRV of the insomnia group were significantly higher than these factors of control group (t=2.712,2.726,2.427,2.542,2.338,P＜0.05 or P＜ 0.01).In the WCST,number of completed categories,conceptualization percentage of the group of patients with insomnia were significantly lower than the control group (t=-2.368,-2.165,all P＜0.05),persistent errors,persistent error percentages,continuous number of responses of patients' group were significantly higher than the control group (t=2.712,2.991,2.690,all P＜0.01).TP,LF,HF,LF/HF of HRV and the number of error responses,persistent errors,persistent error percentages,continuous number of responses of WCST had significant negative correlations (r=-0.171--0.245,P＜0.05 or P＜0.01),while the conceptualization percentage were significantly positively correlated (r=0.198-0.227,P＜0.05 or P＜0.01).Conclusion The results show that insomnia not only cause individual autonomic disorders,but damage the executive function of prefrontal.HRV and executive function in patients with insomnia have close relationships.

Blood lipid abnormality and single nucleotide polymorphisms / 国际儿科学杂志

Studies have indicated approximate 50% cases of coronary heart disease are closely associat-ed with genetic factors and it. It is well evidenced that lipid abnormality is the important risk factors of coronary heart disease. Many single nucleotide polymorphisms that influence levels of blood lipids were found and con-firmed in recent years. The article summarized the single nucleotide polymorphisms associated with the level of lipid.

The Notch signaling pathway is involved in intestinal adaptation in a massive small bowel resection rat model / 重庆医学

Objective To investigate the role of Notch signaling in massive small bowel resection(MSBR)-associated crypt epi-thelial cell proliferation.Methods Male Sprague-Dawley rats were subj ected to sham operation(bowel transection and reanastomo-sis)or 70 % mid-SBR.Intestinal tissue samples were collected at 7 d after operation.The expression of Notch pathway mRNAs and proteins were analyzed by RT-PCR and Western blot.The expression of the Notch pathway proteins Jagged-1,NICD and Hes-1 also determined through immunohistochemical.Furthermore,IEC-6 cells were used to examine the function of the Jagged-1 signaling system.Results SBR increased crypt epithelial cell proliferation and increased expression of Jagged-1 and Hes-1 mRNA and protein along with cleaved Notch-1.Immunohistochemical staining showed that Jagged-1,cleaved Notch-1 and Hes-1 colocalized in the same crypt epithelial cell population.Recombinant Jagged-1 significantly stimulated the proliferation of IEC-6 cells.Conclusion The Jag-ged-1/Notch-1/Hes-1 signaling pathway is involve in intestinal adaptation through increase crypt epithelial cell proliferation.

Bacteriological examination of digital X-ray imaging device before and after disinfection / 中华全科医师杂志

The digital X-ray imaging device was disinfected with trichloro-isocyanuric acid solution.The samples were taken with cotton swab pouring method before and 1,2,3 and 6 h after disinfection and the bacteriological examination was performed.Before disinfection the colony count of samples was all above the standard (＞ 10 cfu/cm2) with bacilli and gram-positive cocci predominantly.The highest count was detected in the X-ray photographic bed (58 cfu/cm2) and the lowest was in the exposure button(19 cfu/cm2).After disinfection the colony count in radiation suits still exceeded the standard,the colony count in diagnosis bed 2 h after disinfection,that in all parts of device 3 h after disinfection was off levels.The results indicate that the chlorine disinfectants can only achieve short-term effect in disinfection of digital X-ray imaging device.

The effect of letrozole plus metformin on infertility of polycystic ovary syndrome / 中国基层医药

Objective To study the effect of letrozole plus metformin on infertility of polycystic ovary syndrome(PCOS).Methods According to the digital table,90 patients with infertility of PCOS were randomly divided into the control group(n =45 cases) and the treatment group(n =45 cases).The patients of the control group were treated though clomiphene,while the patients of the treatment group were treated though letrozole plus metformin.The ovulation rate,pregnancy rate,sex hormones and insulin resistance were detected.Results The homeostasis model assessment of insulin resistance index (HOMA-IR) was (5.72 ± 2.37) before treatment and (3.16 ± 1.39) after treatment in the treatment group.HOMA-IR was (5.69 ± 2.40) before treatment and (4.81 ± 2.06) after treatment in the control group.There was a significantly decrease in the treatment group (t =3.7246,P ＜ 0.05).The ovulation rate was 80％ in the treatment group,while 60％ in the control group,the difference between the two groups was significant(x2 =4.06,P ＜0.05).The pregnancy rate was 48.9％ in the treatment group,while 28.9％ in the control group,the difference between the two groups was significant (x2 =5.77,P ＜ 0.05).Conclusion Letrozole plus metformin could promote the ovulation and decrease insulin resistance.

Perioperative anesthetic management for patients who received percutaneous nephroscopic peripancreatic necrectomy for acute necrotizing pancreatitis / 中华肝胆外科杂志

Objective To review our experiences on perioperative anesthetic management for patients who received percutaneous nephroscopic peripancreatic necrectomy for acute necrotizing pancreatitis.Method The clinical data on 18 patients with acute necrotizing pancreatitis who received percutaneous nephroscopic peripancreatic necrectomy in our hospital from August 2008 to January 2011 were retrospectively analyzed.Results There was a marked fluctuation in hemodynamic status of the patients which required the use of vasoactive drugs during perioperative period.PETCO2 significantly increased after pneumoperitoneum.Tracheal extubation was possible in 11 patients immediately after surgery in the operation room,while 7 patients required tracheal intuhation to be transported back to the surgical intensive care unit (SICU).Conclusion Most patients who underwent percutaneous nephroscopic peripancreatic necrectomy had a varying degree of shock and multi-organ injury before operation.Proper anesthetic induction and maintenance,correct use of vasoactive drugs and lung protective ventilation strategy,and active fluid resuscitation are the keys to good perioperative anesthetic management and to improve treatment results.