Plasma thromboxane B2 and 6-keto-prostaglandin-F1α in patients with type 2 diabetes mellitus

Objective To investigate the changes of plasma thrombexane B2 (TXB2) and 6-keto-prostaglan-din-F1α (6-keto-PGF1α) in patients with type 2 diabetic mellitus and their roles in the pathogenesis of diabetic macroangiopathy. Methods Plasma levels of TXB2 and 6-keto-PGF1α were measured with RIA in 60 cases of type 2 diabetic patients(43 patients with and 17 without diabetic macroangiopathy), with 31 cases of controls. Results Plasma levels of TXB2 in type 2 diabetic patients were significantly higher than those in controls. However, plasma levels of 6-keto-PGF1α in type 2 diabetic patients were significantly lower than those in controls. Changes of both indexes were more significant in type 2 diabetic patients with macroangiopathy than those without macroangiopathy. Plasma levels of TXB2 showed negative correlation with 6-keto-PGF 1α. Conclusion TXB2 and 6-keto-PGF 1 α may play important roles in the pathogenesis of diabetic macroangiopathy. Determination of TXB2 and 6-keto-PGF1α levels in type 2 diabetic patients may be useful for early detection of diabetic macroangiopathy.     

Plasma thromboxane B2 and 6-keto-prostaglandin-F1α in patients with type 2 diabetes mellitus

Objective To investigate the changes of plasma thrombexane B2 (TXB2) and 6-keto-prostaglan-din-F1α (6-keto-PGF1α) in patients with type 2 diabetic mellitus and their roles in the pathogenesis of diabetic macroangiopathy. Methods Plasma levels of TXB2 and 6-keto-PGF1α were measured with RIA in 60 cases of type 2 diabetic patients(43 patients with and 17 without diabetic macroangiopathy), with 31 cases of controls. Results Plasma levels of TXB2 in type 2 diabetic patients were significantly higher than those in controls. However, plasma levels of 6-keto-PGF1α in type 2 diabetic patients were significantly lower than those in controls. Changes of both indexes were more significant in type 2 diabetic patients with macroangiopathy than those without macroangiopathy. Plasma levels of TXB2 showed negative correlation with 6-keto-PGF 1α. Conclusion TXB2 and 6-keto-PGF 1 α may play important roles in the pathogenesis of diabetic macroangiopathy. Determination of TXB2 and 6-keto-PGF1α levels in type 2 diabetic patients may be useful for early detection of diabetic macroangiopathy.     

Plasma thromboxane B2 and 6-keto-prostaglandin-F1α in patients with type 2 diabetes mellitus

Objective To investigate the changes of plasma thrombexane B2 (TXB2) and 6-keto-prostaglan-din-F1α (6-keto-PGF1α) in patients with type 2 diabetic mellitus and their roles in the pathogenesis of diabetic macroangiopathy. Methods Plasma levels of TXB2 and 6-keto-PGF1α were measured with RIA in 60 cases of type 2 diabetic patients(43 patients with and 17 without diabetic macroangiopathy), with 31 cases of controls. Results Plasma levels of TXB2 in type 2 diabetic patients were significantly higher than those in controls. However, plasma levels of 6-keto-PGF1α in type 2 diabetic patients were significantly lower than those in controls. Changes of both indexes were more significant in type 2 diabetic patients with macroangiopathy than those without macroangiopathy. Plasma levels of TXB2 showed negative correlation with 6-keto-PGF 1α. Conclusion TXB2 and 6-keto-PGF 1 α may play important roles in the pathogenesis of diabetic macroangiopathy. Determination of TXB2 and 6-keto-PGF1α levels in type 2 diabetic patients may be useful for early detection of diabetic macroangiopathy.     

2型糖尿病患者血浆内皮素测定及其意义初探

Objective This study aimed to determine the change of plasma endothelin (ET) in patients with diabetes meUitus .Methods 42 diabetic patients and 50 normal people were included in our study.The diabetic patients were divided into 2 groups, one group with vascular complications, and the other one without. The plasma ET, blood pressure,fasting blood glucose and other intems were measured in these people. Result The plasma ET level was found to be greatly elevated in diabetic patients comparing with the normal people and ET level of diabetic patients with vascular complication was much higher than patients without complications. The plasma ET level had positive correlation with systolic pressure in diabetic patients. Conclusion The result indicated that the high level of plasma ET might play an improtant role in the occurrence and development of vascular complication. The level of plasma ET should be routinely measured in diabetic patients. The patients with high - level plamsa ET should take therapeutic measures to prevent the occurrence of vascular complication.     

细胞因子与2型糖尿病胰岛素抵抗的相关性研究

Objective To study on the changes of the IL-6、IL-8、TNF-α、CRP in the type 2 diabetes with insulin resistance and the relation of plasma glucose or insulin resistance and cytokines. Methods (1) To assay the serum level of cytokines in 125 cases with type 2 diabetes mellitus(T2DM) and 40 normal controls. (2)To measure the level of fasting plasma glucose (FPG), hemoglobin A1c (HBA1c), fasting insulin (FINS), fasting C-peptide (FCP). (3)To analyze the relation of the level of FPG、HBA1c、FINS、FCP and cytokines. Results (1)The serum levels of cytokines in T2DM group were significantly higher than in control groups, IL-6、CRP、TNF-α in T2DM group with insulin resistance were significantly increase than in T2DM group without insulin resistance; (2)There was significantly positively correlation between insulin resistance and the increasing of cytokine levels. Conclusion There is an excess activation of cytokines in T2DM, which is significantly correlated with insulin resistance. Cyto-kines plays an important role in the occurrence and development of T2DM and insulin resistance.     

血清肌钙蛋白T测定对不稳定型心绞痛患预后的评估

目的 探讨肌钙蛋白T在不稳定型心绞痛中的诊断和预后判断价值.方法 选择98例不稳定型心绞痛(UAP)患者和100例稳定型心绞痛(SAP)患者,分别在入院后0～4 h及12～24 h检测血清肌钙蛋白T(cTnT)水平,并随访其血清cTnT水平与6个月内急性心脏事件发生之间的关系.结果 不稳定型心绞痛患者血清cTnT阳性率明显高于稳定型心绞痛患者[46.9%(46/98)比2%(2/100)],Braunwald 3级者cTnT阳性率(27例,84.4%)高于2级者(16例,47.1%)和l级者(3例,9.4%),血清cTnT阳性者6个月内急性心脏事件发生率明显高于血清cTnT阴性者[19例比l例].结论 检测血清cTnT水平对于分析不稳定型心绞痛患者的病情严重程度,判断其预后具有重要意义.

Abstract：

Objective To study the diagnostic and prognostic value of troponin T(cTnT) in patients with unstable angina pectoris(UAP). Methods Totally 98 cases of patients with UAP and 100 cases patients with stable angina pectoris(SAP) were selected, their levels of cTnT were measured respectively at 0-4 hours and 12-24 hours after hospitalization, and the relationship between their cTnT levels and the occurrences of acute heart events within 6 months was observed in follow-up. Results Positive rates of the serum of cTnT in patients with UAP were significantly higher than those in patients with SAP, and those of the serum of cTnT in Braunwald grade 3 were also significantly higher than those in grade 2 and grade 1. The rates of acute heart events in patients with positive cTnT were significantly higher than those with negative cTnT. Conclusion There were an important roles in measuring the serum of cTnT at evaluate the pathogenesis of UAP and its prognostic states.     

危重患者血浆中性粒细胞明胶蛋白酶相关载脂蛋白浓度的测定及其临床意义

Objective To detect the concentration of plasma neutrophil gelatinase-associated lipocalin (NGAL) and the clinical significance in critically ill patients. Methods Fifty-four critically ill patients in ICU were enrolled in the present study with 23 health persons as controls. Plasma NGAL concentration was measured by enzyme-linked immunosorbent assay (ELISA) on the 1 st and 7th day from 54 adult patients in ICU and the controls (control group). Results The plasma NGAL concentrations of ICU patients were significantly higher than those of the controls (P ＜0.001 ). NGAL concentrations were no significant difference between the Death group and the Survival group on the 1 st day(P = 0. 259). But there was a markedly significant difference in Acute Physiology and Chronic Health Evaluation (APACHE) Ⅱ scores (P ＜0. 001 ). The APACHE Ⅱ scores on the 7th day significantly decreased in the improved patients (P =0.019) and showed a subtle tendency of increase in the deteriorated patients ( P =0.403) in comparison to the first day. The plasma NGAL levels followed the same trends, but showing a significant increase even in deteriorated patients ( P = 0. 016 and P= 0. 034, respectively). Conclusions The plasma NGAL concentrations of critically ill patients is significantly increased. Combined with APACHE Ⅱ scores,it can provide useful and available data of the disease state of critically ill patients.     

危重患者血浆中性粒细胞明胶蛋白酶相关载脂蛋白浓度的测定及其临床意义

Objective To detect the concentration of plasma neutrophil gelatinase-associated lipocalin (NGAL) and the clinical significance in critically ill patients. Methods Fifty-four critically ill patients in ICU were enrolled in the present study with 23 health persons as controls. Plasma NGAL concentration was measured by enzyme-linked immunosorbent assay (ELISA) on the 1 st and 7th day from 54 adult patients in ICU and the controls (control group). Results The plasma NGAL concentrations of ICU patients were significantly higher than those of the controls (P ＜0.001 ). NGAL concentrations were no significant difference between the Death group and the Survival group on the 1 st day(P = 0. 259). But there was a markedly significant difference in Acute Physiology and Chronic Health Evaluation (APACHE) Ⅱ scores (P ＜0. 001 ). The APACHE Ⅱ scores on the 7th day significantly decreased in the improved patients (P =0.019) and showed a subtle tendency of increase in the deteriorated patients ( P =0.403) in comparison to the first day. The plasma NGAL levels followed the same trends, but showing a significant increase even in deteriorated patients ( P = 0. 016 and P= 0. 034, respectively). Conclusions The plasma NGAL concentrations of critically ill patients is significantly increased. Combined with APACHE Ⅱ scores,it can provide useful and available data of the disease state of critically ill patients.     

Centrophenoxine improves chronic cerebral ischemia induced cognitive deficit and neuronal degeneration in rats

AIM:To study the effects of centrophenoxine (CPH, meclofenoxate) on chronic cerebral hypoperfusion induced deficits in rats. METHODS: Chronic hypoperfusion in rats was performed by permanent bilateral ligation of the common carotid arteries. Morris water maze was used to measure spatial memory performance. Spectrophoto-metrical techniques were used to assay SOD, GPx activities, MDA content, TXB2, and 6-keto-PGF1α levels. Morphological change was examined by HE staining. The expression of Bax and p53 protein were assayed by immunohistochemistry analysis. RESULTS: Chronic hypoperfusion in rats resulted in spatial memory impairments shownby longer escape latency and shorter time spent in the target quadrant. These behavioral dysfunction were accom-panied by increase in SOD and GPx activities, the content of MDA, the levels of pro-inflammatory mediators(TXB2, 6-keto-PGF1α, overexpression of Bax and P53 protein, and delayed degeneration of neurons in cortex andhippocampus. Oral administration of CPH (100 mg/kg, once per day for 37 d) markedly improved the memory impairment, reduced the increase in antioxidant enzyme activities, MDA content and the levels of pro-inflammatorymediators to their normal levels, and attenuated neuronal damage. CONCLUSION: The abilities of CPH to attenuate memory deficits and neuronal damage after ischemia may be beneficial in cerebrovascular type dementia.     

Influence of renal failure,rheumatoid arthritis and old age on the pharmacokinetics of diflunisal

Summary The single-dose plasma kinetics of diflunisal was studied in healthy young and old subjects, in patients with rheumatoid arthritis, and in patients with renal failure. The plasma and urine kinetics of the glucuronidated metabolites of diflunisal were studied in the healthy elderly subjects and in the patients with renal failure. In addition, the multiple-dose plasma kinetics of diflunisal was assessed in healthy volunteers and in patients with rheumatoid arthritis. After a single dose of diflunisal the terminal plasma half-life, mean residence time and apparent volume of distribution were higher in elderly subjects than in young adults. No difference was observed in any pharmacokinetic parameter between age-matched healthy subjects and patients with rheumatoid arthritis. The elimination half-life of unchanged diflunisal was correlated with the creatinine clearance (r=+0.89) and its apparent total body clearance exhibited linear dependence on creatinine clearance (r=+0.78). In patients with renal failure, the terminal plasma half-life and mean residence time of diflunisal were prolonged. The renal and apparent total body clearances were lower, the mean apparent volume of distribution was higher and the mean area under the concentration-time curve extrapolated to infinity (AUC) was greater in the renal failure patients than in controls. The plasma concentration of the glucuronidated metabolites rapidly rose to levels above those of unchanged drug in renal patients, whereas they were lower than those of unchanged diflunisal in controls. The AUC (0–96 h) of diflunisal glucuronides in the patients was four-times that in controls, and the terminal elimination half-life of the glucuronides was prolonged in them. The renal excretion and clearance of diflunisal glucuronides were reduced when renal function was impaired. After multiple dosing, the pre-dose steady-state plasma-concentration increased with decreasing creatinine clearance (r=-0.79). When the plasma concentration exceeded 200 μmol·1⁻¹, the elimination half-life was doubled, due to partial saturation of diflunisal conjugation. This finding suggests that lower doses could be used in long-term treatment. Thus, old age and arthritic disease appear to have little influence on the kinetics of diflunisal in the absence of renal functional impairment. Ordinary doses can be given for short term treatment of elderly patients with or without RA. In patients with renal failure, however, reduced doses of diflunisal are recommended.     

Effects of valsartan with or without benazepril on blood pressure,angiotensin Ⅱ,and endoxin in patients with essential hypertension

AIM：To eveluate the effects of valsartan(Val)with or without benazepril(Ben)on blood pressure and plasma levels of angiotensin(Ang Ⅱ)and digoxin-immunoreactive factors(endoxin)in patients with essential hypertension. METHODS:Ninety patients with essential hypertension were randomly divided into 3 groups(n=30 per group):Ben group(Ben 10 mg/d,po);Val group(Val 80mg/d,po);combination drug therapy group(Val 80mg/d Ben 10mg/d,po);all patients were treated for 12 weeks.Age and sex-matched 20 normal subjects were served as control group.RESULTS:The levels of plasma endoxin and ang Ⅱ in patients with essential hypertension were remarkably higher than those in normal subjects.The levels of plasma ang Ⅱ and endoxin were all obvious positive correlation with systolic blood pressure(SBP)and diastolic blood pressure(DBP)(Ang Ⅱ:r=0.5151,0.7978;endoxin:r= 0.4706,0.7274,respectively),within 6 weeks of drug intervene,SBP and DBP were remarkably decreased in 3 groups.After 6 weeks,SBP and DBP were continuously decreased in Ben group and Val Ben group,but not in Val group.Level of plasma AngⅡ was remarkably decreased as SBP and DBP decreased in Ben group and Val Ben group;level of plasma AngⅡ was remarkably increased in Val group.CONCLUSION:Val with or without Ben remarkably decreased SBP and DBP in patients with essential hypertension within 6 weeks.Antihypertensive efficacy was weakened after long-term use of Val alone.The antihypertensive effect of Val Ben group was the most remarkable among 3 groups and could avoid the side effects of high plasma AngⅡ.     

Changes and their significances of IFN-γ, TNF-α and IL-2 level in mouse peripheral blood following intraperitoneal injection with influenza viruses

Objective To observe changes of IFN-γ, TNF-α and IL-2 levels in mouse peripheral blood following intraperitoneal injection with influenza viruses. Methods Mice were divided into 3 groups randomly and injected with human H3N2 influenza virus, avian H9N2 influenza virus and sterilized virus-free allantoic fluid, respectively. Sera in different groups were collected at several time points after virus injection, and the levels of IFN-γ, TNF-α and IL-2 in peripheral blood were tested by sandwich ELISA. Statistical analysis was made using analysis of variance and LSD-t test. Results The levels of IFN-γ and IL-2 in peripheral blood in influenza viruses injection groups were significantly higher than those in negative control group, and no significant difference in TNF-α level was found between influenza viruses injection groups and negative control group. Conclusion Intraperitoneal injection with human or avian influenza viruses can promote the production of IFN-γ and IL-2 in mouse peripheral blood, but it has little effect on the production of TNF-α.     

Changes and their significances of IFN-γ, TNF-α and IL-2 level in mouse peripheral blood following intraperitoneal injection with influenza viruses

Objective To observe changes of IFN-γ, TNF-α and IL-2 levels in mouse peripheral blood following intraperitoneal injection with influenza viruses. Methods Mice were divided into 3 groups randomly and injected with human H3N2 influenza virus, avian H9N2 influenza virus and sterilized virus-free allantoic fluid, respectively. Sera in different groups were collected at several time points after virus injection, and the levels of IFN-γ, TNF-α and IL-2 in peripheral blood were tested by sandwich ELISA. Statistical analysis was made using analysis of variance and LSD-t test. Results The levels of IFN-γ and IL-2 in peripheral blood in influenza viruses injection groups were significantly higher than those in negative control group, and no significant difference in TNF-α level was found between influenza viruses injection groups and negative control group. Conclusion Intraperitoneal injection with human or avian influenza viruses can promote the production of IFN-γ and IL-2 in mouse peripheral blood, but it has little effect on the production of TNF-α.     

The protective effect of the RAS inhibitor on diabetic patients with nephropathy in the context of VEGF suppression

Aim： The aim of the present study was to explore whether renin angiotensin system （RAS） inhibitor can reduce the production of vascular endothelium growth factor （VEGF）. Further, we sought to elucidate the correlation between VEGF level and certain clinical parameters, such as albumin excretion rate （AER）, before and after treatment with angiotensin type 1 receptor blocker. Methods： We recruited 166 type 2 diabetic patients at various stages of diabetic nephropathy （DN） and 46 healthy control subjects for a cross-sectional study. We recruited another 42 hypertensive type 2 diabetic patients with microalbuminuria for a longitudinal study involving a 6-month irbesartan treatment protocol. Urinary VEGF （uVEGF） levels were determined using ELISA. Results： In the cross-sectional study, hypertensive type 2 diabetic patients who received RAS inhibitor presented lower uVEGF levels than those who did not receive the RAS inhibitor. Statistical analysis indicated that uVEGF level was independently correlated with the AER. In the longitudinal study involving the 6-month irbesartan treatment, we demonstrated that uVEGF levels decreased significantly in patients who achieved a 50% AER reduction （remission group, n=32）. In contrast, uVEGF levels remained unchanged in patients who did not exhibit a 50% AER reduction （nonremission group, n=10）. Furthermore, the change in uVEGF was significantly correlated with the change in AER （r=0.65, P〈0.01） before and after 6 months of irbesartan treatment. This result held true even after we had adjusted for the decrease in average blood pressure. Conclusion： The protective effect of the RAS inhibitor in DN patients is associated with the suppression of VEGF. Accordingly, it may be possible to use uVEGF as a marker of DN progression. We suggest that uVEGF may be an important target for therapeutic intervention in the context of DN.     

常规检查血压正常的阻塞性睡眠呼吸暂停低通气综合征患者50例临床分析

Objective To observe the night blood pressure in obstructive sleep apnea-hypopnea syndrome (OSAHS) patients with normal day-time blood pressure. Methods According to level of night blood pressure, 50 OSAHS patients were divided into two groups: patients with hypertension in sleeping and patients without hyperten-sion in sleeping. Polysomnogram and arterial pressure were tested. Serum endothelin (ET) and calcitonin gene-re-lated peptide (CGRP) levels were measured and compared. Results Eighteen OSAHS patients had hypertension in sleeping. Among them 16 patients had hypertension at morning. The apnea hypopnea index (AHI),the lowest SaO2、the serum levels of ET and ET/CGRP ratio in the OSAHS patients with hypertension in sleeping were higher than those in OSAHS patients without hypertension in sleeping. Conclusion A part of OSAHS patients with hyper-tension in sleeping might be unnoticed only by day-time blood pressure.     

过期妊娠外周血T淋巴细胞亚群和NK细胞的观察

Objective To study the expressions of T cell subsets and NK cells in peripheral blood of postterm pregnancy without symptoms of labor.And to explore the relationship between postterm pregnancy and maternal cell immune function.Methods The plasma levels of t cell subsets and NK cells were detected by using flow cytometry in 100 patients with postterm pregnancy and 100 patients with threatened labor from 37 weeks to 41 weeks.And their propo~ions were calculled with the WBC of blood routine.Results The proportion of NK cell,CD3+,CD8+in the experimental group were lower than those of the control group.There is no significant difference(P＞0.05)between them;CD4+,CD4+/CD8+are significantly lower than those of the control group(P＜0.05).Conclusion The immune function of the patients with postterm pregnancy is significantly lower than that of the normal labor.     

过期妊娠外周血T淋巴细胞亚群和NK细胞的观察

Objective To study the expressions of T cell subsets and NK cells in peripheral blood of postterm pregnancy without symptoms of labor.And to explore the relationship between postterm pregnancy and maternal cell immune function.Methods The plasma levels of t cell subsets and NK cells were detected by using flow cytometry in 100 patients with postterm pregnancy and 100 patients with threatened labor from 37 weeks to 41 weeks.And their propo~ions were calculled with the WBC of blood routine.Results The proportion of NK cell,CD3+,CD8+in the experimental group were lower than those of the control group.There is no significant difference(P＞0.05)between them;CD4+,CD4+/CD8+are significantly lower than those of the control group(P＜0.05).Conclusion The immune function of the patients with postterm pregnancy is significantly lower than that of the normal labor.     

2型糖尿病肾病患者血清C肽水平变化的意义

Objective To investigate the change of serum C-peptide level in type 2 diabetic nephrosis patients. Methods We recruited 120 patients with type 2 diabetes. The level of fasting plasma glucose (FBG), glycated hemoglobin (HbA1c), fasting C-peptide (FCP) and urinary albumin excretion rate (UAER) were measured.According to UAER, 120 patients were divided into Group Ⅰ: normal albuminuria group, 34 patients; Group Ⅱ:microalbuminuria group, 40 patients; Group Ⅲ: clinical albuminuria, 46 patients. At same time, we selected 30 healthy people as control group. Results The level of C-peptide decreased significantly in Group Ⅱ and Group Ⅲ compared with that of control group (P ＜0.01 ). The difference of C-peptide level between Group Ⅱ, Group Ⅳ and Group Ⅰ was statistically significant (P ＜ 0.01 ). The level of C-Peptide and urinary albumin excretion rate was negatively correlated (R = -0. 745 ,P ＜ 0. 01 ). Conclusion The decline of serum C-pcptide may be involved in the development of type 2 diabetic nephropathy.     

2型糖尿病肾病患者血清C肽水平变化的意义

Objective To investigate the change of serum C-peptide level in type 2 diabetic nephrosis patients. Methods We recruited 120 patients with type 2 diabetes. The level of fasting plasma glucose (FBG), glycated hemoglobin (HbA1c), fasting C-peptide (FCP) and urinary albumin excretion rate (UAER) were measured.According to UAER, 120 patients were divided into Group Ⅰ: normal albuminuria group, 34 patients; Group Ⅱ:microalbuminuria group, 40 patients; Group Ⅲ: clinical albuminuria, 46 patients. At same time, we selected 30 healthy people as control group. Results The level of C-peptide decreased significantly in Group Ⅱ and Group Ⅲ compared with that of control group (P ＜0.01 ). The difference of C-peptide level between Group Ⅱ, Group Ⅳ and Group Ⅰ was statistically significant (P ＜ 0.01 ). The level of C-Peptide and urinary albumin excretion rate was negatively correlated (R = -0. 745 ,P ＜ 0. 01 ). Conclusion The decline of serum C-pcptide may be involved in the development of type 2 diabetic nephropathy.     

2型糖尿病视网膜病变患者血清D-二聚体与肿瘤坏死因子α和白细胞介素6的检测价值

目的 研究2型糖尿病视网膜病变(DR)患者血清D-二聚体(D-D)、肿瘤坏死因子α(TNF-α和白细胞介素-6(IL-6)水平检测的临床价值.方法 通过眼底血管荧光造影和眼底检查,将80例糖尿病患者分为糖尿病视网膜病变(DR)组(42例)和糖尿病无视网膜病变(NDR)组(38例),另选健康体检者30例作为对照(对照组),对3组D-D、TNF-α和IL-6进行检测.结果 对照组、NDR组及DR组的D-D、TNF-α、IL-6水平分别为(0.34±0.12)mg/L、(4.5±1.7)ng/L、(66.5±19.3)ng/L;(0.59±0.19)mg/L、(15.5±7.9)ng/L、(101.18±30.1)ng/L;(1.08±0.27)ms/L、(42.1±12.6)ng/L、(161.2±48.8)ng/L.糖尿病患者血清D-D、TNF-α和IL-6水平均明显高于对照组(均P<0.05),DR组血清D-D、TNF.仅和IL-6水平均高于NDR组(均P<0.05).结论 DR患者D-D、TNF-α和IL-6水平明显升高,提示此类患者处于高凝状态,且炎症反应可能在糖尿病视网膜DR发展中起重要作用.

Abstract：

Objective To investigate the clinical value of D-dimer (D-D),tumor necrosis factor-a (TNF-a) and interleukin-6 (IL-6) levels in type 2 diabetic patients with diabetic retinopathy. Methods All the patients had routine FFA and examination of fundus and were divided into two groups based on the results: normal fundus( NDR group n = 38 ) , diabetic retinopathy( DR group n = 42 ). Thirty healthy subjects were used as control group. The serum levels of D-D, IL-6 and TNF-a was detected. Results The serum levels of D-D, IL-6 and TNF-a of type 2 diabetic patients were higher than those of control group statistically (P < 0.05). The serum levels of D-D, IL-6 and TNF-a of DR group were higher than those of NDR group(P <0.05). Conclusions The levels of D-D, IL-6 and TNF-a in type 2 diabetic patients with diabetic retinopathy are higher than those of normal fundus group. The inflammatory reaction may play an important role in the initiation and sustainment of DR.