Effect of postoperative adjuvant chemotherapy on prognosis of patients with intrahepatic cholangiocarcinoma:a multicenter retrospective study / 中华外科杂志

Objectives: To examine the influence of adjuvant chemotherapy after radical resection on the survival of patients with intrahepatic cholangiocarcinoma(ICC) and to identify patients who may benefit from it. Methods: The clinical and pathological data of 654 patients with ICC diagnosed by postoperative pathology from December 2011 to December 2017 at 13 hospitals in China were collected retrospectively. According to the inclusion and exclusion criteria,455 patients were included in this study,including 69 patients (15.2%) who received adjuvant chemotherapy and 386 patients (84.8%) who did not receive adjuvant chemotherapy. There were 278 males and 177 females,with age of 59 (16) years (M(IQR))(range:23 to 88 years). Propensity score matching (PSM) method was used to balance the difference between adjuvant chemotherapy group and non-adjuvant chemotherapy group. Kaplan-Meier method was used to plot the survival curve,the Log-rank test was used to compare the difference of overall survival(OS) and recurrence free survival(RFS)between the two groups. Univariate analysis was used to determine prognostic factors for OS. Multivariate Cox proportional hazards models were then performed for prognostic factors with P<0.10 to identify potential independent risk factors. The study population were stratified by included study variables and the AJCC staging system,and a subgroup analysis was performed using the Kaplan-Meier method to explore the potential benefit subgroup population of adjuvant chemotherapy. Results: After 1∶1 PSM matching,69 patients were obtained in each group. There was no significant difference in baseline data between the two groups (all P>0.05). After PSM,Cox multivariate analysis showed that lymph node metastasis (HR=3.06,95%CI:1.52 to 6.16,P=0.039),width of resection margin (HR=0.56,95%CI:0.32 to 0.99,P=0.044) and adjuvant chemotherapy (HR=0.51,95%CI:0.29 to 0.91,P=0.022) were independent prognostic factors for OS. Kaplan-Meier analysis showed that the median OS time of adjuvant chemotherapy group was significantly longer than that of non-adjuvant chemotherapy group (P<0.05). There was no significant difference in RFS time between the adjuvant chemotherapy group and the non-adjuvant chemotherapy group (P>0.05). Subgroup analysis showed that,the OS of female patients,without HBV infection,carcinoembryonic antigen<9.6 μg/L,CA19-9≥200 U/ml,intraoperative bleeding<400 ml,tumor diameter>5 cm,microvascular invasion negative,without lymph node metastasis,and AJCC stage Ⅲ patients could benefit from adjuvant chemotherapy (all P<0.05). Conclusion: Adjuvant chemotherapy can prolong the OS of patients with ICC after radical resection,and patients with tumor diameter>5 cm,without lymph node metastasis,AJCC stage Ⅲ,and microvascular invasion negative are more likely to benefit from adjuvant chemotherapy.

Mechanism of circZNF609 targeting miR-153 to regulate the proliferation and apoptosis of diffuse large B-cell lymphoma / 中华肿瘤杂志

Objective: To investigate the molecular mechanism of circZNF609 targeting miR-153 to regulate the proliferation and apoptosis of diffuse large B-cell lymphoma. Methods: Fifty cases of lymphoma tissue from patients with diffuse large B-cell lymphoma who were diagnosed and treated in the First Affiliated Hospital of Zhengzhou University from July 2018 to December 2019 were collected. Thirty cases of normal lymph node tissues that were confirmed to be reactive hyperplasia by pathological diagnosis during the same period were selected as controls. Real time quantitative polymerase chain reaction (PCR) was used to detect the expression of circZNF609 in diffuse large B-cell lymphoma tissues and control hyperplasia lymph nodes. Diffuse large B-cell lymphoma OCI-LY19 cells were divided into control group (blank control), si-con group (transfected with siRNA control), si-ZNF609 group (transfected with circZNF609 siRNA), and si-ZNF609+ Anti-NC group (co-transfected with circZNF609 siRNA and inhibitor control) and si-ZNF609+ Anti-miR-153 group (co-transfected with circZNF609 siRNA and miR-153 inhibitor). Cell counting kit-8 (CCK-8) was used to detected proliferation, flow cytometry was used to detect cell cycle and apoptosis. Western blot was used to detect the protein expressions of C-caspase-3, cyclin D1, p21. The luciferase reporter system was used to identifie the relationship between circZNF609 and miR-153. Results: The expression level of circZNF609 in diffuse large B-cell lymphoma tissue was (1.44±0.22), higher than (0.37±0.14) in the control tissues (P<0.001). The cell survival rate of the si-ZNF609 group was (51.74±6.39)%, lower than (100.00±10.23)% of the control group and the (99.64±11.67)% of the si-con group (P<0.001). The proportion of cells in the G(0)/G(1) phase was (63.25±4.11)%, higher than (48.62±4.32)% of the control group and (47.12±3.20)% of the si-con group (P<0.001), the apoptosis rate was (13.36±1.42)%, higher than (3.65±0.47)% of the control group and (3.84±0.62)% of the si-con group (P<0.05). The expression levels of C-caspase-3 and p21 protein were (0.85±0.09) and (0.90±0.08), higher than (0.38±0.04) and (0.65±0.07) in the control group and (0.39±0.05) and (0.66±0.05) in the si-con group (P<0.001). The expression level of cyclin D1 protein was (0.40±0.03), lower than (0.52±0.06) of the control group and (0.53±0.04) of the si-con group (all P<0.001). CircZNF609 and miR-153 are mutually targeted. The cell survival rate of the si-ZNF609+ Anti-miR-153 group was (169.92±13.25)%, higher than (100.00±9.68)% of the si-ZNF609+ Anti-NC group (P<0.001), the ratio of cells in G(0)/G(1) phase and apoptosis rate were (52.01±3.62)% and (8.20±0.87)%, respectively, lower than (64.51±5.17)% and (14.03±1.17)% in the si-ZNF609+ Anti-NC group (P<0.001). The protein expression levels of C-caspase-3 and p21 were (0.42±0.06) and (0.52±0.06), lower than (0.80±0.07) and (0.92±0.10) of the si-ZNF609+ Anti-NC group (P<0.001). The protein expression level of cyclin D1 was (0.68±0.07), higher than (0.39±0.04) in the si-ZNF609+ Anti-NC group (P<0.001). Conclusion: Down-regulation of circZNF609 inhibits the proliferation of diffuse large B-cell lymphoma OCI-LY19 cells and induces apoptosis by targeting miR-153.

Short needling for knee osteoarthritis with blood stasis obstruction and its effect on serum inflammatory factors / 中国针灸

OBJECTIVE@#To compare the clinical efficacy and its effect on serum levels of tumor necrosis factor α(TNF-α), interleukin 1β(IL-1β), interleukin 6 (IL-6) and prostaglandin E2 (PGE2) between short needling (close-to-bone needling) and conventional acupuncture for knee osteoarthritis (KOA) with blood stasis obstruction.@*METHODS@#A total of 68 KOA patients with blood stasis obstruction were randomized into a short needling group (34 cases, 3 cases dropped off) and a conventional acupuncture group (34 cases, 3 cases dropped off). The same acupoints (Dubi [ST 35], Neixiyan [EX-LE 4], Binzhong [Extra], Liangqiu [ST 34], etc. on the affected side) were selected in the two groups. In the short needling group, short needling technique was adopted, the needles were slowly inserted and the needle bodies were shaken, thus gradually penetrated to the bone. In the conventional acupuncture group, conventional acupuncture was adopted, the needles were penetrated to the muscle. After qi-arrival, Dubi (ST 35) and Neixiyan (EX-LE 4), Zusanli (ST 36) and Liangqiu (ST 34) were connected with CMNS6-1 electronic acupuncture instrument, with disperse-dense wave, 2 Hz/10 Hz in frequency, the current intensity was based on patients' feeling, the needles were retained for 30 min, at the same time, the knee joint was irradiated for 30 min with a special electromagnetic wave apparatus in the two groups. Once every other day, 3 times a week for 4 weeks. Before and after treatment, the Western Ontario and McMaster Universities osteoarthritis index (WOMAC) score, knee joint pain visual analogue scale (VAS) score, inflammatory response related indexes (serum TNF-a, IL-1β, IL-6 and PGE2) and knee joint ultrasound were observed，and the clinical effect was evaluated in the two groups.@*RESULTS@#After treatment，the pain, stiffness, function scores and total scores of WOMAC were decreased as compared with those before treatment in the two groups (P<0.05), except for the pain score, the changes of above scores in the short needling group were greater than the conventional acupuncture group (P<0.05). After treatment, the VAS scores, serum levels of TNF-a, IL-1β, IL-6, PGE2 and knee joint synovium thickness, intra-articular effusion were decreased as compared with those before treatment in the two groups (P<0.05), the levels of TNF-a, IL-1β, IL-6 in the short needling group were lower than the conventional acupuncture group (P<0.05). The total effective rate in the short needling group was 87.1% (27/31), which was superior to 83.9% (26/31) in the conventional acupuncture group (P<0.05).@*CONCLUSION@#Short needling could improve the knee joint function, relieve the pain and inflammatory response, improve the knee joint synovium inflammatory response, reduce the knee joint intra-articular effusion for KOA patients, its effect is better than conventional acupuncture.

The effect of compound Xiongdanyinchen granules on hypothalamic-pituitary-adrenal axis in rats with metabolism-associated fatty liver disease based on "entero-brain axis" / 中华老年医学杂志

Objective:To study the effects of compound Xiongdanyinchen granules(CXG)on intestines, brain and hypothalamic-pituitary-adrenal(HPA)axis in rats with metabolism-associated fatty liver disease(MAFLD).Methods:50 SD rats were randomly divided into normal control group(normal rats fed with basic feed), model control group(MAFLD model rats fed with normal saline replacing CXG), intragastricly CXG-treated groups with doses of(4.73 g·kg -1·d -1)for low dose group, (18.92 g·kg -1·d -1)for medium dose group, and(9.46 g·kg -1·d -1)for high dose group for 4 weeks.All groups rats were sampled, and rat liver, colon and hypothalamic tissues were stained by hematoxylin-eosin(HE)for observing pathological changes.Fluorescence-based real-time quantitative polymerase chain reaction(PCR)and immunohistochemical detection were used for detecting the colon and hypothalamus to see levels of adreno-corticotropic hormone releasing hormone(CRH), adrenocorticotropic hormone(ACTH)and cortisol(CORT)expression. Results:HE staining showed that the fat vacuoles of liver cells were reduced in CXG group.As compared with the model control group, CXG group showed the hepatic cords were arranged neatly and the hepatic lobules were clearly visible, with significantly improved signs.As compared with the model control group, the CXG group showed that the structure of each layer of the colon wall was basically orderly, and the infiltration of inflammatory cells in the submucosa was reduced, which showed significant improvement.The hypothalamic nerve cell edema and solid shrinkage were reduced in CXG group.The results of quantitative PCR showed that as compared with the model control group, the proteins expression of CRH, ACTH and CORT in colon tissues were decreased in medium-dose and high-dose CXG group(all P<0.05), and the proteins expression of CRH, CORT and ACTH in hypothalamus tissues were decreased(all P<0.05)in high-dose CXG group.Immunohistochemical results showed that CXG could reduce the proteins expression of CRH, ACTH and CORT in colon tissue and hypothalamus tissue(all P<0.05). Conclusions:Compound Xiongdanyinchen granules can reduce liver tissue injury and intestinal inflammatory response, improve intestinal mucosal barrier, reduce hypothalamic nerve cell swelling and necrosis, and reduce the secretion of CRH, ACTH and CORT in colon and hypothalamus of MAFLD rats.These results suggest that the mechanism of action of compound Xiongdanyinchen granules in treating MAFLD may be related to the reduce dysfunction of hypothalamus-pituitary-adrenal(HPA)axis.

Clinical utility value of urinary aldosterone detection by tandem mass spectrometry in primary hyperaldosteronism screening / 中华检验医学杂志

Objective:To explore the clinical utility of liquid chromatography tandem mass spectrometry forprimary aldosteronism screening.Methods:From January to October 2019, 413 inpatients diagnosed hypertension from Fuwai Hospital of Chinese Academy of Medical Sciences were enrolled, including 60 Primary aldosteronism(PA)patients and 353 primary hypertension patients. The plasma aldosterone concentration (PAC) and renin concentration (DRC) were measured after 2 h of standing. The 24 h urine samples were collected for measurement of aldosterone using LC-MS/MS. The performance of urine aldosterone and urine aldosterone/renin ratio (UADRR) in PA screening was evaluated by ROC, and compared with PAC/DRC ratio (ADRR). Meanwhile, the efficiency of urine aldosterone in elderly patients or patients with low blood potassium or 24 h urine sodium over 200 mmol was investigated.Results:Area under the curve (AUC)of urine aldosterone was 0.725 (95 %CI 0.679-0.767), and the best cut-off was 7.13 μg/24 h, which was lower than AUC of ADRR (0.958, 95 %CI 0.934-0.975). The AUC of UADRR was 0.947 (95 %CI 0.920-0.966), the best cut-off was 1.11 (μg/24 h)/(μIU/ml), the sensitivity and specificity were 91.7% and 89.0%, respectively. There is no significant differences found with ADRR. In patients with 24 h urine sodium over 200 mmol, AUC of aldosterone was 0.834 (95 %CI 0.730-0.910) and the best cut-off was 9.31 μg/24 h. The sensitivity and specificity were 90.9% and 68.7%, respectively. For the elderly patients over 60 years old, the AUC of urinary aldosterone was 0.860 (95 %CI 0.770-0.925), and the best cut-off was 6.91 μg/24 h. The sensitivity and specificity were 84.6% and 81.3%, respectively. When admission blood potassium was less than 3.50 mmol/L, AUC of urinary aldosterone was 0.822 (95 %CI 0.684-0.917), and the best cut-off was 10.63 μg/24 h. The sensitivity and specificity were 85.7% and 66.7%, respectively. Conclusion:The detection of aldosterone in urine by LC-MS/MS can provide clinical information for PA screening, and the screening performance is better in patients with 24-hour urine sodium over 200 mmol, elderly patients or patients with low blood potassium. If combined with renin, screening efficiency was the same as that in ADRR.

Prediction of postoperative pancreatic fistula using a nomogram based on the updated definition

PURPOSE: The International Study Group on Pancreatic Fistula's definition of postoperative pancreatic fistula (POPF) has recently been updated. This study aimed to identify risk factors for POPF in patients having pancreaticoduodenectomy (PD) and to generate a nomogram to predict POPF.METHODS: Data on 298 patients who underwent PD from March 2012 to October 2017 was retrospectively reviewed and POPF statuses were redefined. A nomogram was constructed using data from 220 patients and validated using the remaining 78 patients. Independent risk factors for POPF were identified using univariate and multivariate analyses. A predictive nomogram was established based on the independent risk factors and was compared with existing models.RESULTS: Texture of the pancreas, size of the main pancreatic duct, portal vein invasion, and definitive pathology were the identified risk factors. The nomogram had a C-index of 0.793 and was internally validated. The nomogram performed better (C-index of 0.816) than the other most cited models (C-indexes of 0.728 and 0.735) in the validation cohort. In addition, the nomogram can assign patients into low- (less than 10%), intermediate- (10% to 30%), and high-risk (equal or higher than 30%) groups to facilitate personalized management.CONCLUSION: The nomogram accurately predicted POPF in patients having PD.

A preliminary study on the reform of clinical skill curriculum based on the phased examination of TCM medical practitioners qualification / 中华医学教育探索杂志

The 2013 National Practitioners Qualification Examination Work Conference proposed to reform the traditional one-stop test into two stage. In May 2017, Fujian University of Traditional Chinese Medicine participated in this empirical study as a pilot for the first time. This paper made a preliminary summary and analysis of the results of the phased examination. Because of the absence and deficiency of clinical skills of students in our school, we carried out a series of reform measures for clinical skill courses: enhancing teaching facilities, enriching teaching contents and methods, reforming assessment mode and strengthening the monitoring of the teaching quality of clinical skills. According to the students, reform measures are conducive to consolidating theoretical knowledge and improving clinical skills, laying a good foundation for successfully passing the national examination of medical practitioners and becoming a qualified medical talent.

A preliminary study on the reform of clinical skill curriculum based on the phased examination of TCM medical practitioners qualification / 中华医学教育探索杂志

The 2013 National Practitioners Qualification Examination Work Conference proposed to reform the traditional one-stop test into two stage. In May 2017, Fujian University of Traditional Chinese Medicine participated in this empirical study as a pilot for the first time. This paper made a preliminary summary and analysis of the results of the phased examination. Because of the absence and deficiency of clinical skills of students in our school, we carried out a series of reform measures for clinical skill courses:enhancing teaching facilities, enriching teaching contents and methods, reforming assessment mode and strengthening the monitoring of the teaching quality of clinical skills. According to the students, reform measures are conducive to consolidating theoretical knowledge and improving clinical skills, laying a good foundation for successfully passing the national examination of medical practitioners and becoming a qualified medical talent.

Biologic and small molecular agents for simultaneous treatment of psoriasis and psoriatic arthritis: Research progress / 第二军医大学学报

A quarter of the psoriasis patients develop psoriatic arthritis, and it would be beneficial if a preparation which can be used to treat the skin and joint symptoms at the same time. Currently these biologic agents could serve both include tumor necrosis factor inhibitors such as adalimumab, etanercept, infliximab, golimumab and certolizumab; anti-IL-12/IL-23 p40 antibodies such as ustekinumab; and anti-IL-17 agents such as secukinumab, brodalumab. Recently another group of small molecule agents has been found for the purpose: phosphodiesterase-4 inhibitor, apremilast, JAK inhibitor, tofacitinib and INCBO18424. This review provides an overview on the agents that can be used for the concurrent treatment of skin and joint psoriasis.

Change of cytochrome P450 2C in the process of development and its clinical significance / 中国药学杂志

This paper presents a review of the change of cytochrome P450 2C (CYP2C) in human development process and the effect of its gene polymorphism on clinical medication. The relevant literature at home and abroad was reviewed, analyzed, and summarized. The expression and activity of CYP2C9 and CYP2C19 enzymes are different at different ages, which has a direct effect on clinical drug use in pediatric patients. It has vital significance to further research the change rules of CYP2C9 and CYP2C19 and the influence of gene polymorphism on drug metabolism in the process of development for improving the efficacy and rationality of pediatric medication.

Clinical analysis of 160 cases of statin-induced myopathy / 中华心血管病杂志

<p><b>OBJECTIVE</b>To analyze the clinical features of statin-induced myopathy.</p><p><b>METHOD</b>The statin-induced myopathy case reported as adverse drug reaction (ADR) to the Beijing Center for ADR Monitoring during January 2007 to December 2012 was summarized, patients were divided to myopathy group and rhabdomyolysis group, according to the absence or presence of rhabdomylysis. The clinical characteristics, medication history and outcome were compared between the two groups.</p><p><b>RESULTS</b>A total of 160 statin-induced myopathy cases (54 in rhabdomyolysis group (33.8%) and 106 cases in myopathy group (66.3%)) were collected from the database (mean age: (64.22 ± 13.55) years old, 51.2% male, n = 82). The ADR occurred immediately after the first medication and up to 4 years after medication. Observed clinical features were myalgia, myositis, asymptommatic creatine kinase (CK) elevation or rhabdomyolysis. The average age were (68.54 ± 15.41) years old in rhabdomylysis group and (62.02 ± 12.41) years old in myopathy group (P = 0.004). There was no gender difference between the rhabdomylysis group and myopathy group (P = 0.406) . Twenty-four cases (44.4%) in rhabdomyolysis group and 26 cases (16.5%) in myopathy group were treated with high dose statin (P < 0.001). Percent of simvastatin treatment was significantly higher in rhabdomyolysis group (70.4% (38/54) ) than in myopathy group (32.1% (34/106), P < 0.001). Spearman correlation analysis showed that age, high-dose statin treatment and simvastatin use were all positively correlated with rhabdomylysis (P < 0.001), and the correlation coefficients (r value) were 0.305, 0.290 and 0.364, respectively. Four patients (aged from 71 to 85 years) died because of ADR and all 4 cases received high-dose statin treatment, 3 of them suffered from complex combined diseases, acute disease progression and complex multiple drug use history.</p><p><b>CONCLUSIONS</b>Severe statin-induced myopathy, like rhabdomyolysis, is more likely to occur in old patients, in patients taking high-dose statin, especially simvastatin.</p>

Establishment and preliminary validation of warfarin maintenance dose algorithm in Chinese Han Population / 中华心血管病杂志

<p><b>OBJECTIVES</b>To establish an algorithm to predict the warfarin maintenance dose in Chinese Han population and validate the accuracy of this algorithm.</p><p><b>METHODS</b>A total of 488 Chinese Han patients, hospitalized in Fuwai hospital and had a stable dose of warfarin and a target international normalized ratio (INR) of 1.5 to 3.0, were recruited. Indications for warfarin use included prosthetic heart valve, atrial fibrillation and pulmonary embolism. These patients were divided into derivation group (n = 323) and validation group (n = 165) according to the enrollment time. A warfarin maintenance dose algorithm was established based on genetic information, demographic characteristics and concomitant medications by multiple linear regression analysis in derivation group. In the validation group, we evaluated the accuracy of our algorithm by comparing the predicted dose with the actual dose.</p><p><b>RESULTS</b>Our algorithm included VKORC1-1639G > A, CYP2C9*3 and CYP4F2 genotype, age, Body hight, body weight, amiodarone and digoxin use (R(2) = 0.652, P < 0.001) .In the validation group, the average predicted dose by our algorithm had no statistical difference with the actual dose [(3.51 ± 1.03) mg vs. (3.53 ± 1.41) mg, P = 0.779]. Our algorithm identified 100 out of 165 (60.6%) patients in the validation group, whose predicted dose of warfarin was within 20% of the actual dose, and predicted warfarin dose was underestimated in 17.6% (29/165) patients and overestimated in 21.8% (36/165) patients.</p><p><b>CONCLUSION</b>Our algorithm based on VKORC1, CYP2C9 and CYP4F2 polymorphisms can help to predict the warfarin maintenance dose in Chinese Han Population.</p>

Impact of six genetic polymorphisms on Warfarin maintenance dose variation in Chinese Han population / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To evaluate the effect of VKORC1, CYP2C9, GGCX, PROC, EPHX1 and CYP4F2 gene polymorphisms on Warfarin maintenance dose variation in Chinese Han Population.</p><p><b>METHODS</b>Four hundred eighty-eight patients with prosthetic heart valves, atrial fibrillation or pulmonary thromboembolism and achieved stable Warfarin dose were enrolled. TaqMan probe or direct sequencing were used to genotype Y9VKORC1, CYP2C9, GGCX, EPHX1 and CYP4F2 gene polymorphisms. Demographic characteristics, stable therapeutic dose of Warfarin and concomitant medications were collected for all patients. The effect of VKORC1, CYP2C9, GGCX, PROC, EPHX1 and CYP4F2 gene polymorphisms, demographic characteristics and concomitant medications on Warfarin daily maintenance dose were analyzed with statistical method.</p><p><b>RESULTS</b>VKORC1 and CYP2C9 gene polymorphisms could explain more than 50% Warfarin maintenance dose variation in recruited patients, while CYP4F2 gene polymorphisms could only explain 1%. GGCX, PROC and EPHX1 gene polymorphisms had no impact no Warfarin maintenance dose. VKORC1 and CYP2C9 gene polymorphisms have a greater impact on Warfarin maintenance dose compared with demographic characteristics and concomitant medications.</p><p><b>CONCLUSION</b>VKORC1 and CYP2C9 gene polymorphisms have a significant impact on Warfarin maintenance dose in Chinese Han population.</p>

A study on awareness of diabetic nephropathy among diabetes patients / 预防医学

Objective To understand the awareness status of diabetic nephropathy( DN)and its influence factors among diabetes patients. Methods A total of 1236 cases of diabetes were investigated on the awareness of DN and Logistic regression was used to analyze its influence factors. Results The awareness rate of DN was 77. 67% and its influence factors were age,education level,monthly household income and available diabetic health education( OR=1. 15,1. 80, 1. 41and 0. 98 respectively,all P< 0. 05). Moreover,the awareness status of DN prevention was at a low level. Among the 9 methods to prevent DN,only had 4 methods the awareness rate of which was over 80%. Conclusion Health education on DN control and prevention among diabetes patients should be emphasized.

Effect of Cytochrome P-450 4F2 Gene Polymorphisms in Patients With Warfarin for Initial Doses in 7 Days / 中国循环杂志

Objective: To study the effect of cytochrome P-450 4F2 (CYP4F2, rs2108622) gene polymorphisms in patients with warfarin for initial doses in 7 days. Methods: A total of 271 patients treated by warfarin were studied. The CYP4F2 gene polymorphisms were assessed by real-time PCR, the average initial warfarin doses in 7 days and the time of international normalized ratio (INR) ifrst arrived to therapeutic range were recorded. The differences of initial warfarin doses and the time of INR ifrst arrived to therapeutic range among CYP4F2 gene polymorphisms of CC, CT and TT genotypes were analyzed by statistical method. Results: The average initial warfarin doses among CYP4F2 polymorphisms of TT and CT/TT were higher than CC, P Conclusion: CYP4F2 polymorphisms inlfuenced the initial warfarin doses in 7 days in relevant patients.

Characteristics of peripheral blood CD45RA+and CD45RO+T lymphocyte subsets in patients with cGVHD and its clinical significance / 中国免疫学杂志

To characterize the CD45RA+and CD45RO+T lymphocyte subsets in the peripheral blood of patients with cGVHD induced by allogeneic haematopoietic stem cell transplantation ( allo-HSCT ) and to explore their relations with the disease.Methods:The peripheral blood was collected from 64 patients after allo-HSCT,including 21 non-cGVHD patients,15 light grade cGVHD patients,18 mild grade cGVHD patients and 10 severe grade cGVHD patients,then CD4+CD45RA+,CD4+CD45RO+, CD8+CD45RA+and CD8+CD45RO+T lymphocyte subsets were detected by flow cytometry ( FCM).Results: Compared with the control,the percent of CD4+CD45RA+T lymphocyte in patients with light,mild and severe grade cGVHD decreased markedly (P<0.05),the percent of CD4+CD45RO+T lymphocyte increased markedly (P<0.05).But there were not obviously change in the patient with different grade cGVHD.The percent of CD8+CD45RA+,CD8+CD45RO+T lymphocyte did not change obviously.Conclusion:CD4+CD45RA+and CD4+CD45RO+may play an important role in the pathogenesis of cGVHD.

Nonlinear dynamics of electroencephalography study in schizophrenic patients / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Few characteristic changes of linear electroencephalograph (EEG) have been reported in schizophrenia. The aim of the present study was to investigate the changes in temporal-spatial dimensional properties of EEG under different cognitive tasks in patients with schizophrenia.</p><p><b>METHODS</b>EEG was recorded by using EEG-1518K system and mapping system (Nihon Kohden Tomioka Corporation, Japan) in 45 schizophrenic patients and 47 healthy adults (normal control, NC) under five states: eyes closed, eyes open, mental arithmetic test with eyes closed, memory test with eyes open, and number cancellation test. Correlation dimension (D2) and point-wise correlation dimension (PD2) were calculated for all EEG analyses.</p><p><b>RESULTS</b>(1) There were no significant differences of D2 and PD2 between NC and schizophrenic patients under states of eyes open and closed. (2) Compared with NC, schizophrenic patients showed decreased performance of D2 in mental arithmetic test with eyes closed and number cancellation test (mental arithmetic test with eyes closed: Nc 5.9 ± 0.6, Sch 3.0 ± 0.8; number cancellation test: Nc 6.0 ± 0.6, Sch 4.4 ± 0.7; P < 0.05 or P < 0.01). (3) Schizophrenic patients also showed decrease performance of PD2 in mental arithmetic test with eyes closed, memory test with eyes open, and number cancellation test (mental arithmetic test with eyes closed: Nc 6.9 ± 0.7, Sch 4.0 ± 0.8; memory test with eyes open: Nc 6.6 ± 0.8, Sch 5.0 ± 0.9; number cancellation test: Nc 7.1 ± 0.7, Sch 4.8 ± 0.9; P < 0.05 or P < 0.01).</p><p><b>CONCLUSIONS</b>Nonlinear dynamic analysis provided a new approach in clinical investigation of EEG signals. It was helpful to further understand the cerebral mechanism in schizophrenic cognitive process.</p>

Neonatal ventral hippocampal lesion as a valid model of schizophrenia: evidence from sensory gating study / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The neonatal ventral hippocampal lesion (NVHL) rat model has been proposed as an experimental model for schizophrenia. NVHL rats display impaired central nervous system (CNS) inhibition, which may lead to a phenomenon similar to P50 sensory gating deficits observed in schizophrenic patients. In this study, we investigated whether sensory gating deficits occurred in the NVHL rat as a model for schizophrenia.</p><p><b>METHODS</b>We created the NVHL rat model using ibotenate. The P20 and N40 were measured to assess sensory response and gating in NVHL and sham rats. Epidural electrodes recorded evoked potentials (EPs), from which latencies, amplitudes, difference scores (S1-S2), and gating ratios (S2/S1) were assessed.</p><p><b>RESULTS</b>Compared with sham controls, prolonged S1 N40 latency and decreased S2 N40 amplitude were detected in the NVHL group. In neither difference scores nor gating ratios, a significant difference was found between NVHL group and sham controls.</p><p><b>CONCLUSIONS</b>NVHL rats may be a valid animal model for schizophrenia. This strategy will be useful in future neurobiological studies investigating the etiology of schizophrenia.</p>

Incarcerated internal hernia within a huge irreducible parastomal hernia with intestinal obstruction: a rare case report of "hernia within hernia" / 대한외과학회지

We report an incarcerated internal hernia in a huge irreducible parastomal hernia-"hernia within hernia." A 70-year-old obese woman with diabetes who underwent an abdomino-perineal resection 20 years ago was admitted to our hospital with 20 years history of a huge irreducible bulge, 25 cm in diameter. An internal hernia due to an adhesive band extending from the sac wall to proximal colon was found in the parastomal hernia sac during an emergency laparotomy. We cut off the distal colon and relocated the colostomy stoma. The patient was discharged uneventfully 2 weeks after the surgery and was readmitted to have a further laparoscopic hernia repair 8 months later. Unfortunately, an unrecognized enterotomy occurred during the secondary surgery that led to an additional laparotomy during which the mesh was not contaminated by the bowel contents and was kept in place. At 22-month follow-up, there were no evidences of recurrence.

Dipyridamole 201Tl myocardial SPECT imaging in patients with dilated cardiomyopathy / 中华核医学杂志

Objective To explore the characteristics of dipyridamole 201 Tl myocardial perfusion imaging (MPI) SPECT in patients with dilated cardiomyopathy. Methods Thirty patients with dilated cardiomyopathy underwent pharmacological stress 201Tl MPI SPECT after intravenous infusion of dipyridamole (0. 56 mg/kg) for 4 min. The early and delayed SPECT images were acquired respectively at 10 and 240 min after 201Tl injection. The images were analyzed and reported by two or three experienced nuclear medicine physicians. Results All patients were found to have abnormal perfusion patterns at delay imaging, however 90.00% (27/30) were also abnormal at early images. Six patients had reverse redistribution. Conclusion Dipyridamole 201Tl MPI SPECT imaging may be of some value for the assessment of patients with dilated cardiomyopathy.