Effect of naringenin on natural killer cell cytotoxicity against hepatocellular carcinoma cells in vitro and its mechanism / 临床肝胆病杂志

Objective To investigate the effect of naringenin on the killing rate of natural killer (NK) cells and related mechanism by amplification of human peripheral blood mononuclear cells into NK cells in vitro and co-culture with hepatocellular carcinoma (HCC) CLC5 cells at a ratio of 1∶ 1. Methods A lymphocyte separation medium was used to isolate human peripheral blood mononuclear cells, which were induced with recombinant human interleukin-2 in vitro to culture NK cells. CCK-8 assay was used to measure the proliferation of HCC cells after human HCC cells were treated with naringenin (0, 3.125, 6.25, 12.5, 25, and 50 μmol/L) for 0, 24, and 48 hours, and after human NK cells were treated with different concentrations of naringenin for 24 hours, CCK-8 assay was used to measure the proliferation of NK cells. CellTiter-LumiTM was used to measure the killing rate of NK cells after the NK-HCC cell co-culture system at the ratio of 1∶ 1 was treated with naringenin for 24 hours. Quantitative real-time PCR was used to measure the gene expression of the activating receptor NKG2D in NK cells and NKG2D ligands in HCC cells. A one-way analysis of variance was used for comparison of continuous data between multiple groups, and the least significant difference t -test was used for further comparison between two groups. Results After being induced and cultured by recombinant human interleukin-2, NK cells were amplified to 82.33%±0.70% of human peripheral blood mononuclear cells. After naringenin treatment for 24 hours, there was no significant difference in the proliferation rate of HCC CLC5 cells between all mass concentration groups (all P > 0.05), and in the 25 and 50 μmol/L mass concentration groups, naringenin significantly promoted the proliferation of NK cells (both P 0.05); it significantly upregulated the expression of the NKG2D ligands such as ULBP1 and ULBP3 in HCC cells (all P < 0.001). Conclusion Naringenin may increase the killing activity of NK cells by upregulating the expression of NKG2D ligands in HCC cells.

Epidemiological characteristics of patients with tibial pilon fracture / 中华创伤骨科杂志

Objective:To explore the epidemiological characteristics of inpatients with tibial pilon fracture in The Third Hospital of Hebei Medical University from 2016 to 2019.Methods:The data of all the patients who had been hospitalized for pilon fracture from January 2016 to December 2019 in The Third Hospital of Hebei Medical University were collected using the medical image computer archiving and transmission system and the medical record query system. The patients' age, gender, occupation, residence, season, cause of injury, Rüedi-Allg?wer classification, and AO classification were analyzed.Results:A total of 234 inpatients with tibial pilon fracture were collected, including 179 males and 55 females, with a ratio of male to female of 3.3∶ 1. The prevalence age ranged from 41 to 50 years in male patients (31.3%, 56/179) and from 51 to 60 years in female patients (25.5%, 14/55). In the 234 patients, farmers (101 cases, 43.2%), rural area (166 cases, 70.9%) and spring season (77 cases, 32.9%) accounted for a higher proportion. The proportions of high-altitude falling (41.0%, 96/234) and high-energy injury (61.5%, 144/234) were the highest. Of the 234 patients by the Rüedi-Allg?wer classification, 23 (9.8%) had type Ⅰ fracture, 90 (38.5%) type Ⅱ fracture, and 121 (51.7%) type Ⅲ fracture, with type Ⅲ fracture prevalent in males (58.1%, 104/179) and type Ⅱ fracture prevalent in females (16.4%, 9/55). Of the 234 patients by the AO classification, 131 (56.0%) had type 43B fracture and 103 (44.0%) type 43C fracture, with a higher proportion of type 43B fractures in women (67.3%, 37/55) than in men (52.5%, 94/179). In type 43B fractures, type 43B3 (43.5%, 57/131) and type 43B3.3 (75.4%, 43/57) were the most common; in type 43C fractures, type 43C3 (74.8%, 77/103) and type 43C3.3 (51.9%, 40/77) were the most common.Conclusions:In the recent 4 years in The Third Hospital of Hebei Medical University, pilon fractures increased year by year and occurred more frequently in spring. They were more common in farmers and in the rural areas. They prevailed in the patients aged from 41 to 50 years. The Rüedi-Allg?wer type Ⅲ fractures and the AO type 43B fractures were the most common.

Effects and Mechanism of Qiwei Qinggan Powder on Hepatic Fibrosis Based on Proteomics / 中国药房

OBJECTIVE：To investigate the anti- hepatic fibrosis （HF）effects of Qiwei qinggan powder and explore its possible mechanism. METHODS ：Male Wistar rats were randomly divided into blank group ，HF model group ，Qiwei qinggan powder low-dose，medium-dose and high-dose groups [ 135，270，405 mg/（kg·d），by total amount of crude drugs] ，with 12 rats in each group. Except for blank group ，other groups were given 50％ CCl4-peanut oil solution intragastrically （2 mL/kg，twice a week ，for consecutive 8 weeks） to induce HF model. At same time ， blank group and model group were given constant volume of 0.5％ CMC-Na solution intragastrically ；administration groups were given relevant medicine intragastrically ，once a day ，for consecutive 8 weeks. General situation of rats were observedand liver morphology was observed after last administration and hepatic indexes were detected. The contents of liverfunction indexes （ALT，AST，ALP，HYP）in serum and the expression of α-SMA in hepatic tissue were determined ， and HE and Masson staining were performed to observe the histopathology. Using the difference multiple of expression quantity as the index ，TMT technology was used to screen the differentially expressed protein in medicine group （combining the liver tissue samples of Qiwei qinggan powder groups ）and HF model group. Uniprot-GOA database and KAAS ，KEGG mapper online tools were used to analyze GO and KEGG pathway enrichment. RESULTS ：The rats in the blank group were in good health ；the liver was bright red and smooth ，the liver lobules were intact ，no degeneration and necrosis ，inflammatory cell infiltration or fibrous tissue proliferation was found. Compared with blank group ，the rats in HF model group had poor diet ，depressed spirit ，disordered and lusterless fur ；the liver was dark red or yellow with rough surface ，hard texture ，inflammatory cell infiltration ，fiber tissue destruction ，bridge connection and so on ；the hepatic index ，the contents of liver function indexes and the expression of α-SMA were increased significantly （P＜0.05）. Compared with HF model group ，above symptoms of rats were improved to different extent in different dose groups of Qiwei qinggan powder ；hepatic index in Qiwei qinggan powder low-dose group ，the content of ALP in high-dose group ，the contents of ALT，AST and HYP and the expression of α-SMA in different dose groups were decreased significantly （P＜0.05）. A total of 42 differentially expressed proteins related to HF were screened ，of which 15 were up-regulated and 27 were down-regulated in expression，including fatty acid binding protein 4（FABP4），cholesterol 7α-hydroxylase（CYP7A1）. The results of enrichment analysis showed that the differentially expressed proteins were mainly enriched in extracellular space ，blood particles and other cell parts，involving the molecular functions of oxidoreductase activity and fatty acid binding ，the biological processes of the regulation of heterotypic cell adhesion ，protein activation cascade ，as well as retinol metabolism ，arachidonic acid metabolism ，PPAR and other signal pathway. CONCLUSIONS ：Qiwei qinggan powder can reduce the hepatic index ，ALT，AST，ALP and HYP contents in serum ，down-regulate the expression of α-SMA，improve the degree of inflammation and fibrosis of liver tissue ，and have a certain protective effect on rats. The anti-HF mechanism of it involves multiple targets and signal pathways ，such as FABP 4， CYP7A1 and PPAR.

Association of high-sensitivity C-reactive protein with the increments of BMI and WC in junior high school students / 中国学校卫生

Objective@#To observe the short-term changes of Body Mass Index (BMI) and Waist Circumference (WC) in junior high school students in Harbin, and to explore its association with the changes of high-sensitivity C-reactive protein (hs-CRP) in the same period. Furthermore, to analyze the value of hs-CRP to predict the BMI and WC changes in children and adolescents.@*Methods@#Convenient sampling method was used,and the students in grades 6 and 7 in junior high school in Harbin were selected by stratified clicstering. Physical examination and serum hs-CRP were performed for two consecutive years. According to the results of the two surveys, the subjects were divided into control group (normal → normal), case group (abnormal → abnormal), improved group (abnormal → normal) and progression group (normal → abnormal). The multinomial logistic regression was used to analyze the predictive value of hs-CRP changes for BMI and WC changes.@*Results@#The rate of overweight and obesity among samples from junior high school was 30.6%. The increment of BMI in female was more obvious than that in male(U=17 358.0，P<0.05). Both increments in BMI and WC were positively correlated with increments in hs-CRP(P<0.05). The risk of occurrence of "BMI always abnormal" and "WC always abnormal" increased sequentially in hs-CRP "normal → abnormal", "abnormal → normal" and "abnormal → abnormal", were 3.45 times, 5.98 times and 38.84 times of "BMI is always normal", respectively; and were 3.45 times, 4.26 times and 28.50 times of "WC is always normal", respectively. The risk of "BMI improvement" was 7.70 times more than that of BMI "always normal" when hs-CRP "abnormal → normal".@*Conclusion@#The prevalence of overweight and obesity in junior high school students in Harbin is high. The BMI increases faster in female from junior high school. The trends of change of BMI and WC are consistent with the trend of change of hs-CRP. The “hs-CRP change” has a good predictive value for BMI and WC development.

Effects of Hui-hui Gan-song Yin on accumulation of extracellular matrix of glomerular mesangial cells induced by high glucose / 中国生化药物杂志

Objective To investigate the effects of Hui-hui Gan-song Yin(HGY) on the accumulation of extracellular matrix of rat glomerular mesangial cells(MCs) induced by high glucose.Methods The 40 SD rats were randomly divided into normal control group(distilled water), glurenorm group(10 mg/kg), HGY high-dose group(10 g/kg) and HGY low-dose group(5 g/kg), 10 rats in each group.The rats in each group were treated with corresponding drugs, twice a day.After 3 days, the serum containing each drug were prepared to culture rat MCs in vitro.The MCs were divided into the normal control group( 10% serum of rats in normal control group ) , high glucose group ( 30 mmol/L glucose +10% serum of rats in normal control group), glurenorm group(30 mmol/L glucose+10% serum of rats in glurenorm group), HGY high-dose group(30 mmol/L glucose+10% serum of rats in HGY high-dose group) and HGY low-dose group(30 mmol/L glucose+10% serum of rats in HGY low-dose group).The fibronectin(FN), ColⅠand ColⅣ levels were detected by Western blot.Results Compared with normal control group, the expression of FN, ColⅠand ColⅣ in high glucose group increased(P<0.01).The HCY suppressed the protein expression of FN, ColⅠand ColⅣ significantly(P<0.05).Conclusion The serum containing HGY could suppressed protein expression of FN , ColⅠand ColⅣ and inhibit the accumulation of extracellular matrix of MCs induced by high glucose, which could protect glomerulus and delay the development of diabetic nephropathy.

Effects of parathyroidectomy on bone metabolism and bone mineral density in hemodialysis patients with secondary hyperparathyroidism / 中华肾脏病杂志

Objective To observe the effects of parathyroidectomy(PTX) on bone metabolism and bone mineral density(BMD) in maintenance hemodialysis patients with secondary hyperparathyroidism (SHPT).Methods A total of 26 dialysis patients with SHPT were treated with PTX.Serum calcium,phosphorus,alkaline phosphatase(ALP) levels were determined by standard methods.The levels of serum intact parathyroid (iPTH),osteocalcin (OC),procollagen type Ⅰ aminoterminal propeptide (PINP),β-crosslaps (β-CTX) were measured by chemiluminescence.BMD was measured by dual energy X ray absorptiometry.iPTH,OC,PINP,β-CTX,serum calcium,phosphorus,ALP were measured before parathyroidectomy and 1,3,6,12,18,24 months after operation.Lumbar spine (LS) and femoral neck (FN) BMD were measured before and 24 months after PTX.Results Compared with that before operation,serum OC[(104.49±25.42) μg/L vs (695.46±355.62) μg/L,P ＜ 0.01] and PINP levels [(248.36 ± 159.38) μg/L vs (809.28 ± 283.50) μg/L,P＜ 0.01] progressively decreased 3 months after PTX,and serum β-CTX levels [(1.60±0.64) μg/L vs (3.37±1.34) μg/L,P ＜ 0.01] decreased 1 month after PTX.Compared with that before operation,BMD levels increased 24months after PTX in LS[(0.88±0.23) g/cm2 vs (0.78±0.23) g/cm2,P ＜ 0.01] andFN[(0.96±0.19) g/cm2 vs (0.84±0.24) g/cm2,P ＜ 0.01],and Z-scores were also increased in both LS[(-1.24±0.55) vs (-1.66± 0.24),P ＜ 0.01] and FN[(-1.51 ±0.72) vs (-1.93 ± 0.40),P ＜ 0.01].Correlation analysis showed that baseline iPTH was positively correlated with ⊿Z-score in FN (r=0.584,P=0.002) and LS (r=0.400,P=0.043),and so did the OC with ⊿Z-score in FN (r=0.651,P ＜ 0.001) and LS (r=0.509,P=0.008).Conclusion The levels of OC,PINP and β-CTX are reduced and BMD is improved in hemodialysis patients with SHPT after PTX.

Effects of mildly increasing dialysis sodium removal on renin and sympathetic system in hemodialysis patients / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>It has been argued that the benefits of reducing sodium loading may be offset by increased activation of the renin-angiotensin-aldosterone system (RAAS) and sympathetic nervous system. This study aimed to investigate the long-term effects of an increase in dialysis sodium removal on circulating RAAS and sympathetic system in hypertensive hemodialysis (HD) patients with "normal" post-HD volume status.</p><p><b>METHODS</b>Thirty hypertensive HD patients were enrolled in this pilot trial. After one month period of dialysis with standard dialysate sodium of 138 mmol/L, the patients were followed up for a four months period with dialysate sodium set at 136 mmol/L, without changes in instructions regarding dietary sodium control. During the period of study, the dry weight was adjusted monthly under the guidance of bioimpedance spectroscopy to maintain post-HD volume status in a steady state; 44-hour ambulatory blood pressure, plasma renin, angiotensin II (Ang II), aldosterone, and norepinephrine (NE) were measured.</p><p><b>RESULTS</b>After four months of HD with low dialysate sodium of 136 mmol/L, 44-hour systolic and diastolic blood pressures (BPs) were significantly lower (-10 and -6 mmHg), in the absence of changes in antihypertensive medications. No significant changes were observed in plasma renin, Ang II, aldosterone, and NE concentrations. The post-HD volume parameters were kept constant.</p><p><b>CONCLUSION</b>Mildly increasing dialysis sodium removal over 4 months can significantly improve BP control and does not activate circulating RAAS and sympathetic nervous system in hypertensive HD patients.</p>

Effect of calf bioimpedance ratio for volume evaluation on hypertension in hemodialysis patients / 中华肾脏病杂志

Objective To elucidate the effect of bioimpedance ratio in the calf (calf-RBI) for volume evaluation on hypertension in hemodialysis (HD) patients. Methods Bioimpedance in the right calf was measured by bioimpedance spectroscopy (BIS). As an index of volume status, calf-RBI was calculated as follows: calf-RBI =impedance at 200 kHz / impedance at 5 kHz. The range of age-stratified 1SD from mean calf-RBI in the healthy control was assumed as the target range for the corresponding HD patients. The dry body weight (DBW) was stepwise decreased under the guidance of calf-RBI. The changes of calf-RBI, blood pressure and antihypertensive medications were recorded and correlation analysis among indexes was performed. Results The calf-RBI showed a normal distribution in both healthy subjects and HD patients. The calf-RBI was positively correlated with age, but not with gender or BMI. Forty-two patients with (35.9%) calf-RBI beyond target range were identified in 117 HD patients. The percentage of uncontrolled hypertensive individuals was significantly higher as compared to those with calf-RBI within or below target range (59.5% vs 33.3% and 16.7%, P＜0.01). The percentage of uncontrolled hypertensive individuals and the dose of antihypertensive medications was significant improved after decreasing the DBW in the patients with calf-RBI beyond target range (74.1% vs 33.3%, P＜0.01) and defined daily dose (2.00±2.28 vs 2.49±2.47, P＜0.05 ). Conclusions The age-stratified calf-RBI may be used as a useful index for estimation of volume status, and has a good association with clinical manifestations. Recognition and correction of chronic fluid overload based on age-stratified calf-RBI is helpful in hypertension control for hemodialysis patients.

Computer-assisted design of therapeutic personalized footwear for diabetic foot:a preliminary study / 中华骨科杂志

Objective To explore the outcomes of computer-assisted design of therapeutic personalized footwear for diabetic foot.Methods Fifty-eight cases of diabetic foot were included in the study.Ten items of data from theses patients were measured with methods provided by Salford University.All characteristics of the footwear were calculated with computer.Shoes were specially designed with the formula and computational method provided by Safford university.All patients had worn the shoes for 13 months.Special questionnaires were used to measure the outcomes.Results Thirty-two cases had been followed up for one month,25 cases for 2 months,25 cases for 3 months and 42 cases for 13 months.The score had improved from 67.94±15.14 before wearing the shoes to 78.13±1.44 thirteen months after wearing.The health score of the foot had improved.There was significant difference between before and after wearing the footwears.Conclusion Special-designed diabetic shoes play an important role in the prevention of ulcer for diabetic foot patients.Computational method and data model obtained from Salford university needs to be modified when applying it for Chinese.

Determination of prim-O-glucosylcimifugin and 5-O-methylvisammisoide in Saposhnikovia divaricata and HPLC fingerprint analysis / 中国中药杂志

<p><b>OBJECTIVE</b>To develop HPLC methods for the determination of prim-O-glucosylcimifugin and 5-O-methylvisammisoide in Saposhnicovia divaricata and of HPLC fingerprint to compare the wild and culture varieties.</p><p><b>METHOD</b>Conditions of determination: Shimadzu C18 column (4.6 mm x 150 mm, 5 microm), methanol-water (40:60) as mobile phase with the flow rate of 1 mL x min(-1). The detection wavelength was 254 nm. Conditions of HPLC fingerprint: MG II C18 column (4.6 mm x 250 mm, 5 microm), the mobile phase was acetonitrile-water with the flow rate of 1 mL x min(-1), using linear gradient elution, the column temperature was 30 degrees C.</p><p><b>RESULT</b>The average recovery of prim-O-glucosylcimifugin was 99.6% (RSD 0.72%, n=6). The average recovery of 5-O-methylvisammisoide was 102.6% (RSD 0.88%, n=6). The contents of prim-o-glucosylcimifugin in wild and culture varieties were (4.96 +/- 2.59) and (3.61 +/- 1.82) mg x g(-1) respectively. The contents of 5-O-methylvisammisoide were (3.91 +/- 2.09) and (4.37 +/- 2.02) mg x g(-1) respectively. The compositions of S. divaricata were effective separated under the conditions of HPLC fingerprint.</p><p><b>CONCLUSION</b>The HPLC determination method of prim-O-glucosylcimifugin and 5-O-methylvisammisoide is convenient and accurate. The HPLC fingerprint analysis method could be a basis for quality control and classification evaluate of S. divaricata.</p>

Epinephrine hydrochloride prevents bone cement implantation syndrome in cemented hip replacement / 中华创伤杂志

Objective To investigate the clinical application of epinephrine hydrochloride in the prevention of bone cement implantation syndrome in the cemented hip replacement. Methods The clinical data of 48 patients treated with cemented hip replacement from July 2008 to April 2009 were retrospectively analyzed. All the patients were divided into control group and intervention group. The bone marrow cavities of 24 patients in the control group were not pretreated with saline epinephrine hydrochloride before implantation of bone cement; the bone marrow cavities of 24 patients in the intervention group were pretreated with saline epinephrine hydrochloride before implantation of bone cement. Systolic blood pressure (SBP), diastolic blood pressure (DBP), the mean arterial pressure (MAP), heart rate (HR)and pulse oxygen saturation ( SPO2 ) were compared between the two groups before bone cement implantation and 1,2, 3, 4, 5, 6, 7, 8, 9, 10 minutes after bone cement implantation. The data were analyzed with variance analysis and Q test. Results (1) In the control group: the blood pressure was decreased in control group one minute after bone cement implantation and a significant decrease of the blood pressure was observed at 2-6 minutes after the implantation ( P ＜ 0. 01 ). The blood pressure was increased seven minutes after the implantation, with the most significant increase of DBP ( P ＜ 0.05 ).The blood pressure recovered to normal 10 minutes later. The SPO2 was decreased significantly ( P ＜0.05 ) but no significant change was observed in HR ( P ＞ 0.05). (2) In the intervention group: the bone marrow cavity was pretreated with saline epinephrine hydrochloride before implantation of bone cement.ity. No significant difference was found in SBP, DBP, MAP, HR and SPO2 at different time points before and after bone cement implantation (P ＞0.05 ). Significant decrease of blood pressure and SPO2 was observed in control group and a significant hemodynamic change was detected at 2-6 minutes after the bone cement implantation. In the intervention group, no hemodynamic change was found in all the patients except that one patient was found with decrease of blood pressure and another one with the occasional premature ventricular contractions. Conclusion Pretreatment of bone marrow cavity with saline epinephrine hydrochloride can effectively prevent bone cement implantation syndrome.

Effect of Cynomorium songaricum polysaccharide on telomere length in blood and brain of D-galactose-induced senescence mice / 中国中药杂志

<p><b>OBJECTIVE</b>To study the effects of Cynomorium songaricum polysaccharide (CSP) on telomere length in blood and brain tissues of aged mice in order to provide some evidence for CSP's development and applying in the clinical uses.</p><p><b>METHOD</b>Kunming mice were intraperitoneal injected D-galactose (500 mg x kg(-1) x d(-1)) to make the aging models, and different dosages of CSP (20, 40, 80 mg x kg(-1)) were given by gavage for 56 days. The average length of telomere was determined by real-time fluorescence quantitative PCR.</p><p><b>RESULT</b>The relative T/S ratio of the group high and middle dosages of CSP in blood were 1.64 +/- 0.36 and 1.33 +/0.28, respectively, and higher than that of the group of senescence 1.01 +/- 0.13 (P < 0.01). Values of the group of high, middle, and low dosages of CSP in brain tissues were 3.34 +/- 0.58, 2.30 +/- 0. 75 and 1.55 +/- 0.58, respectively, and significantly higher than that of the group of senescence 1.04 +/- 0.33 (P < 0.01).</p><p><b>CONCLUSION</b>CSP can exert the anti-aging effects by increase telomere length f senescence mice.</p>

Postoperative rehabilitation of calcaneus fracture guided by the Footscan system / 中华物理医学与康复杂志

Objective To test the Footscan system for guiding the postoperative rehabilitation of calcaneus fractures.Methods Sixty patients with unilateral calcaneus fracture were divided randomly into a rehabilitation group and a control group.Patients in both groups began a routine of functional rehabilitation training 24 h after a reduction and fixation operation.The patients in the rehabilitation group received individualized rehabilitation protocols based on regular dynamic evaluation of their plantar pressure using the Footscan system.Those in the control group were administered routine rehabilitation training without the personal modifications.At the 2nd and 7th month postoperation,the dynamic plantar pressure of both groups was evaluated and the functioning of their feet Was scored.Results At the 2nd month post-operation,there was no significant difference between the two groups in terms of subtalar ioint range of motion,the lateral deviation of pressure center,the time of heel touch with the ground,the maximum pressure at the lateral aspect of the calcaneus and impulsive force during walking.The functional evaluation scores were also not significantly different.At the 7th month post-operation,all the indices in both groups had improved significantly over the 2nd month,bulthe improvement in the rehabilitation group Was greater(except the time of heel touch with the ground).Conclusion The Footscan system can be a valuable tool for evaluating patients with calcaneus fracture and serve as a reference for planning rehabilitation interventions for such patients.

Nuclear factor kappa B,Bcl-2 and Bax in limb function after acute spinal cord compression injury / 中华物理医学与康复杂志

Objective To investigate the relationship of nuclear factor kappa B(NF-κB),Bcl-2 and Bax with limb function after acute spinal cord injury in rats. Methods Forty-eight rats were divided at random into a control group and an experimental group with 24 rats in each.The spinal cords of the rats in the experimental group were injured at the T8,9,10 level through moderate compression.Four hours,8 h,and 1,3,7 and 14 days after the injury,4 rats were selected randomly from each group and graded with a BBB score.They were then sacrificed and their spinal cords were collected.Immunohistochemical measurements were used to observe the expression of NF-κB, Bcl-2 and Bax. Results NF-κB,Bcl-2 and Bax were observed in the injured spinal nerve cells of rats in the exper imental group but were absent in the control group.After injury,the expression of these factors increased at first and then decreased.BBB scores for limb function increased gradually.No correlation was found between the changes in NF-κB and Bcl-2,but the expression of NF-κB was positively correlated with that of Bax.There was negative correla tion between NF-kB levels and BBB scores,and between NF-kB levels and the ratio of Bcl-2 to Bax. Conclusion In rats,there is a close negative correlation between NF-kappa B levels,the ratio of Bcl-2/Bax and limb function after acute spinaI cord iujury.

Association of insulin resistance with common carotid arterial stiffness in hemodialysis patients / 中华肾脏病杂志

Objective To investigate the association between arterial stiffness of the common carotid artery(CCA)and insulin resistance in hemodialysis patients. Methods Arterial stiffness index β of CCA was evaluated by an ultrasonic phase-lock Echo-tracking system in 80stable non-diabetic hemodialysis patients.Insulin resistance was detected by the homeostasis model assessment method(HOMA-IR).Plasma hemoglobin,serum albumin,total cholesterol,high density lipoprotein,low density lipoprotein,triglyceride,lipoprotein(a),ApoA1,ApoB,CRP,calcium,phosphorus and creatinine were determined by standard methods. Results The stiffness index β was 11.41±4.13 in patients with previous cardiovascular disease(CVD)and 9.75±3.63 in those without CVD(P＜0.05).The stiffness index β was positively correlated with HOMA-IR(r=0.321,P＜0.01),as well as with age(r=0.376,P＜0.01),pulse pressure(r=0.267,P＜0.05),and duration of hemodialysis(r=0.219,P＜0.05).In stepwise multiple regression analysis,HOMA-IR(β=0.228,P＜0.05)and age(β=0.308,P＜0.01)were identified as significant independent variables for stiffness index β of CCA. Conclusions Insulin resistance is associated with aaefial stiffness in nondiabetic hemodialysis patients.The increased arterial stiffness may be the link between insulin resistance and cardiovascular morbidity as well as mortality in hemodialysis patients.