Rate of decline in CD4 count in HIV patients not on antiretroviral therapy

Background

The progressive decline in the CD4 count in HIV patients leads to a more general decline in immune functioning. The study has been carried out to determine the decline in CD4 count in HIV patients.

Methods

The study was conducted in a medical college hospital at Maharashtra. The information on baseline CD4 count was gathered from positive patient records registered in the central disease registry. The baseline CD4 count was the first count of CD4 obtained when the patient is diagnosed as HIV positive and further two subsequent readings. The time from baseline (t1) till the last CD4 count (t2) was divided into the different quartiles and the median decline in CD4 count in each quartile was determined. As the time between the two CD4 count measurements was not uniform the rate of change in CD4 was measured with respect to time as [X (t2) − X (t1)/(t2 − t1)]. Correlation was assessed using correlation coefficient.

Results

As the CD4 counts were following skewed distribution, the normality was achieved by cuberoot transformation. The overall rate of decline in CD4 count was estimated to be 35 cells/μL per year with 95% confidence interval (CI) as (17.01, 85.04). The correlation coefficient between decline in CD4 and the initial CD4 count in the four time quartiles was (r = −0.51; p = 0.001, r = −0.79; p = 0.000, r = −0.48; p = 0.015 and r = −0.80; p = 0.000) respectively. The median decline in the CD4 count in 0–6 months was 3 cells/μL, in (6–11) months was approximately 26 cells/μL, in (11–21.5) months was 30 cells/μL and in more than 21.5 months the median decline was 52 cells/μL.

Conclusions

There was a progressive decline in the CD4 count following HIV infection. An understanding of the influence of decline in CD4 count in HIV patients not on ART is important for clinical management of HIV disease.     

Persistently low CD4 cell counts are associated with hepatic events in HCV/HIV coinfected patients: data from the national free antiretroviral treatment program of China

Background:Chronic liver disease has emerged as a leading cause of non-acquired immune deficiency syndrome (AIDS)-related mortality in hepatitis C virus (HCV)/human immunodeficiency virus (HIV)-coinfected patients. The relationship between CD4 cell count and HIV-related opportunistic infections and tumors has been well characterized; however, it is unclear whether CD4 cell count is associated with HCV-related hepatic events.Methods:This observational cohort study enrolled HCV/HIV-coinfected patients from the National Free Antiretroviral Treatment Program of China from 2004 to 2019 in Guangzhou. The primary outcome was a composite of hepatic events, including cirrhosis complications, hepatocellular carcinoma (HCC), and liver-related mortality. Kaplan–Meier survival and multivariate logistic regression analyses were performed.Results:Among the 793 patients, 43 developed hepatic events during a median follow-up of 6.7 years, including 35 cirrhosis complications, 13 HCC cases, and 14 cases of liver-related mortality. The 5-year and 10-year cumulative incidences of hepatic events were 4.2% and 9.3%, respectively. Patients who developed hepatic events had a less satisfactory increase in CD4 cell count, lower peak CD4 (354.5 cells/μL vs. 560.0 cells/μL, P < 0.001), and lower percentage of peak CD4 > 500 cells/μL (30.2% vs. 60.7%, P < 0.001) after the initiation of antiretroviral therapy (ART) than those who did not. The cumulative incidences of hepatic events were higher in patients with lower peak CD4 levels with adjusted odds ratios of 3.96 (95% confidence interval [CI]: 1.51–10.40), 2.25 (95% CI: 0.87–5.86), and 0.98 (95% CI: 0.35–2.74) for patients with peak CD4 at <200 cells/μL, 200–350 cells/μL, and 351 to 500 cells/μL, respectively, relative to those with peak CD4 > 500 cells/μL. Peak CD4 was negatively associated with the risk of hepatic events in a dose–response manner (P-value for trend = 0.004).Conclusion:Persistently low CD4 cell counts after ART are independently associated with a high risk of hepatic events in HCV/HIV-coinfected patients, highlighting the important role of immune reconstitution in improving liver outcomes.     

Status of immunity against PVB19 in HIV-infected patients according to CD4+ cell count,and antiretroviral therapy regimen groups

Background:

Human Parvovirus B19 (PVB19) is among the aetiology of aplastic crisis in human immunodeficiency virus (HIV)-infected patients. Several studies have indicated the importance of an infection agent in bringing about complications in immuno-compromised patients. The current study aims to determine the seroprevalence of IgM and IgG antibodies to PVB19 among HIV-positive patients and its association with clinical and epidemiological factors.

Materials and Methods:

In a case control study, 90 HIV-positive patients were compared with 90 sex and age matched healthy controls in terms of anti-PVB19 IgG and IgM along with other primary clinical and laboratory features.

Results:

The overall prevalence of positive anti-PVB19 IgG among HIV patients and controls were 81.1% and 28.9%, respectively (P < 0.001). None of the subjects showed positive results for anti-PVB19 IgM. Patients with CD4⁺ cell count <200 showed higher seroprevalence of positive anti-PVB19 IgG which did not reach statistically significant. However, anti-PVB19 IgG seropositivity differed significantly between HIV patients on different regimens of antiretroviral therapy (ART) (P < 0.05).

Conclusion:

Immunity against PVB19 is more prevalent among HIV-positive patients compared to healthy controls. However, positive HIV status is not associated with acute PVB19 infection. The presence of anti-PVB19 IgG does not necessarily protect the body from further complications like anaemia. Given the results of the study, AIDS patients are recommended to undergo screening for parvovirus antibody in order to prevent complications like aplastic anaemia.     

HIV/AIDS患者CD4+T淋巴细胞数水平与巨细胞病毒感染分析

目的 分析住院及门诊人类免疫缺陷病毒（human immunodeficiency virus, HIV）感染者/获得性免疫缺陷综合征（acquired immunodeficiency syndrome, AIDS）患者（简称HIV感染者/AIDS患者）不同免疫状态下合并巨细胞病毒（human cytomegalovirus, HCMV）感染率情况,进一步了解HIV/AIDS合并HCMV感染的相关影响因素。方法 用流式细胞术进行HIV/AIDS体内CD4⁺T淋巴细胞亚群的计数,采用聚合酶链-荧光法进行HIV/AIDS尿液中HCMV-DNA检测,采用χ²检验分析HIV/AIDS不同来源、不同免疫状态下合并HCMV感染率差异。采用Logistic回归分析HIV/AIDS患者合并HCMV感染的相关因素。结果 817例HIV/AIDS患者合并HCMV感染阳性率21.5%（147/817）。HIV/AIDS患者的年龄、性别在是否合并HCMV感染中差异无统计学意义。CD4⁺T细胞≤50个/μL、合并梅毒感染为HIV/AIDS患者合并HCMV感染危险因素（P<0.001,OR=6.410,95%CI=4.141~9.922;P<0.05,OR=1.790,95%CI=1.206~2.657）,门诊和住院HIV/AIDS患者合并HCMV感染率差异有统计学意义（χ²=36.042,P<0.001）。以患者来源为分层因素进行CD4⁺T淋巴细胞计数与HCMV感染率分析,住院HIV/AIDS患者CD4⁺T细胞≤50个/μL时为合并HCMV危险因素（P<0.001,OR=4.796,95%CI=2.998~7.668）;门诊HIV/AIDS患者,CD4⁺T细胞≤50个/μL时为HIV/AIDS患者合并HCMV危险因素（P<0.001,OR=18.468,95%CI=6.668~51.154）。结论 AIDS期患者应及时筛查有无巨细胞病毒合并感染, AIDS CD4⁺T细胞数≤50个/μL、合并梅毒感染为HIV/AIDS患者合并HCMV感染的危险因素,门诊AIDS患者CD4⁺T细胞≤50个/μL其合并HCMV感染可能性为CD4⁺T细胞>50个/μL的18.468倍,应予以重视,尽早治疗,获得更好预后。     

Impact of baseline CD4^＋ T cell counts on the efficacy of nevirapinebased highly active antiretroviral therapy in Chinese HIV/AIDS patients： a prospective,multicentric study

Background CD4^＋T cell counts have been used as the indicator of human immunodeficiency virus type 1 （HIV-1） disease progression and thereby to determine when to start highly active antiretroviral therapy （HAART）. Whether and how the baseline CD4^＋T cell count affects the immunological and viral responses or adverse reactions to nevirapine （NVP）-containing HAART in Chinese HIV-1 infected adults remain to be characterized. Methods One hundred and ninety-eight HIV-seropositive antiretroviral therapy （ART）-naive subjects were enrolled into a prospective study from 2005 to 2007. Data were analyzed by groups based on baseline CD4^＋T cell counts either between 100-200 cells/μl or 201-350 cells/μl. Viral responses, immunologic responses and adverse events were monitored at baseline and at weeks 4, 12, 24, 36, 52, 68, 84, 100. Results Eighty-six and 112 subjects ranged their CD4^＋T cell counts 100-200 cells/μl and 201-350 cells/μl, respectively. The pre-HAART viral load in CD4 201-350 cells/μl group was significantly lower than that in CD4 100-200 cells/μl group （P=0.000）. After treatment, no significant differences were observed between these two groups either in the plasma viral load （pVL） or in the viral response rate calculated as the percentage of pVL less than 50 copies/ml or less than 400 copies/ml. The CD4^＋T cell counts were statistically higher in the 201-350 group during the entire follow-ups （P 〈0.01） though CD4^＋ T cell count increases were similar in these two groups. After 100-week treatment, the median of CD4^＋ T cell counts were increased to 331 cells/μl for CD4 100-200 cells/μl group and to 462 cells/μl for CD4 201-350 cells/μl group. Only a slightly higher incidence of nausea was observed in CD4 201-350 cells/μl group （P=0.05） among all adverse reactions, including rash and liver function abnormality. Conclusions The pVLs and viral response rates are unlikely to be associated with the baseline CD4^＋T cell counts. Initiating HAART in Chinese HIV-1 infected patients with higher baseline CD4^＋T cell counts could result in higher total CD4^＋T cell counts thereby achieve a better immune recovery. These results support current guidelines to start HAART at a threshold of 350 cells/μl.     

惠州市艾滋病患者抗病毒治疗前后CD4细胞计数变化特征

目的了解惠州市艾滋病抗病毒治疗病人不同基线CD4细胞计数的变化特征,建立健全艾滋病病毒感染者/艾滋病患者CD4+T淋巴细胞监测平台,为取得相关治疗的最大成效比提供数据支持。方法利用国家艾滋病防治信息系统的抗病毒治疗管理基本信息数据库及实验室检测数据,比较惠州市2006~2012年抗病毒治疗病人治疗前后(治疗前、治疗后3个月、6个月、9个月、12个月)CD4细胞数值的变化情况,进行统计学分析。结果经抗病毒治疗3个月以后,106例患者的CD4细胞有不同程度增高,最高378个/uL,平均增加88.74个/uL。同治疗前基线CD4+T淋巴细胞数相比,治疗后3个月、6个月、9个月、12个月时CD4细胞数明显增加,经统计学分析差异均有统计学意义。结论艾滋病病毒感染者/病人接受免费抗病毒治疗以后,CD4细胞计数在不同治疗时间段均逐渐上升,提示患者抵抗力的增强。定期监测CD4细胞计数的变化,有助于治疗医生了解患者的病情发展,选择正确的治疗方案,并观察对治疗的反应。     

Correlation analysis on total lymphocyte count and CD4 count in HIV-infected patients: a retrospective evaluation

CD4 count is the standard method for determining eligibility for highly active antiretroviral therapy (HAART) and monitoring HIV/AIDS disease progression,but it is not widely available in resource-limi...     

江苏省HIV感染者和艾滋病患者抗病毒治疗1年后CD4+T淋巴细胞检测结果分析

目的 :了解江苏省首次接受艾滋病免费抗病毒治疗的HIV/AIDS患者治疗1年后CD4+T变化及影响因素。方法 :收集江苏省首次接受抗病毒治疗的基线和治疗随访1年时均有CD4+T细胞检测结果记录的HIV/AIDS患者资料,随访截止时间为2014年5月31日。建立Excel数据库并用SPSS16.0软件进行分析。结果:首次接受抗病毒治疗的基线和随访1年时均有CD4+T检测结果记录的HIV/AIDS共3 290例。81.4%为江苏省籍,男女比例为4.36∶1,平均年龄(39.7±12.1)岁。感染途径主要为性传播。入组时基线CD4+T细胞计数均数为185.81个/μl。治疗1年后的CD4+T细胞均数为312.20个/μl。Logistic回归分析显示,年龄大、基线CD4+T高、在疾控中心治疗和临床Ⅰ期的HIV/AIDS患者,其CD4+T较基线增长值≥100个/μl的比例低。结论:江苏省HIV/AIDS抗病毒治疗对免疫功能恢复效果显著,应继续规范、早期开展抗病毒治疗工作。     

HIV、HCV复合感染患者HAART治疗后CD4＋细胞计数和HCV RNA变化的研究

目的了解河南省某县HIV感染者HIV、HCV复合感染状况以及高效抗逆转录病毒治疗（HAART）后CD4＋细胞计数和HCV RNA的变化。方法测定HIV感染者HCV—IgG、CD4＋细胞计数、血浆HIV和HCV病毒栽量。采用单因素方差分析比较应用HAART后CIM＋细胞计数和HCV RNA的变化。结果228名HIV感染者中，HCV—IgG阳性率88、6％（202／228）。在HAART超过6个月且HCV—IgG阳性的病人中，HIV RNA阴性（B组）的CD4＋细胞计数显著高于HIV RNA阳性的患者（A组）（P=0．020）；而两组的HCV RNA病毒栽量差异无统计学意义（P=0．749）。结论河南地区HIV、HCV复合感染在血液传播的HIV感染者中普遍存在。经HAART治疗的患者随着血浆HIV RNA转阴，CD4＋细胞计数显著升高，但血浆中HCV RNA的含量无显著变化。     

梅毒对HIV-1感染者病毒载量和CD4+T细胞计数的影响

目的:评估梅毒对HIV-1感染者血浆HIV-1病毒载量,CD4 T细胞计数的影响.方法:于1年前对HIV-1感染者进行梅毒ELISA和RPR检测,对RPR检测阳性者根据其CD4 T细胞计数和病毒载量进行配对,与1年后重新检测CD4 T细胞计数与病毒载量比较,用配对资料的t检验分析梅毒对HIV感染者CD4 T细胞与病毒载量的影响.结果:在271例HIV-1感染者中,共11例梅毒阳性者,占4.1%.本研究中包括HIV-1感染者20例,其中10例梅毒与HIV-1共感染者.在梅毒与HIV共感染者病例中,CD4 T细胞计数明显降低(99个细胞/ml),但病毒载量的变化没有显著差异.结论:梅毒显著地降低HIV-1感染者的CD4 T细胞数量,但病毒载量没有明显的变化.为了延缓HIV-1感染者进入AIDS阶段的时间,应加强对梅毒的治疗和采取相应的预防措施.     

HIV感染的CD4~+T淋巴细胞损伤机制

人类免疫缺陷病毒(HIV)感染引起机体免疫功能进行性受损,从而导致各种机会性感染和肿瘤。HIV对机体免疫系统的各个组成部分均可造成直接或间接的损伤,但CD4+T淋巴细胞是HIV攻击的     

HIV/AIDS患者皮肤黏膜表现与CD4+T淋巴细胞计数关系的临床分析

目的 通过分析HIV/AIDS患者皮肤黏膜表现的种类、严重程度及其与CD4 +T淋巴细胞计数的关系,评估皮肤黏膜病变预测、评价患者免疫状态的可行性. 方法 对345 例首诊确诊HIV/AIDS患者的临床资料进行回顾性研究,其中192例患者出现皮肤黏膜表现,153例无皮肤黏膜表现. 记录患者的CD4 +T淋巴细胞计数,观察HIV感染人群中各种皮肤病的发生率并分析皮肤病的种类、严重程度与患者免疫功能的相关性. 结果 HIV 阳性患者的皮肤病发生率为55.65%(192/345),皮肤黏膜损害的原因复杂,以真菌、病毒感染为主,分别为43.77%(151/345)、11.59%(40/345),其中以口腔念珠菌病发生率最高,达36.23%(125/345) ,其他包括马尔尼菲霉病、梅毒、单纯疱疹、颈部淋巴结核等都有较高的发生率. 无皮肤黏膜表现、出现1种和2种以上皮肤黏膜改变的CD4 +T淋巴细胞计数分别为(247 ±119)个/μl、(84 ±59)个/μl、(36 ±23)个/μl,差异均有统计学意义( P<0.05). 结论 HIV/AIDS患者皮肤黏膜表现多样,感染者免疫功能越差,越易并发皮肤黏膜疾病,某些皮肤黏膜表现可作为预测和评估HIV感染者免疫状态的临床指标.     

铜仁市两地区HIV感染者或AIDS患者CD4+淋巴细胞检测及影响因素分析

目的:了解铜仁市两地区艾滋病病毒(HIV)感染者或艾滋病(AIDS)病人(PLWHA)CD4+T淋巴细胞检测(CD4检测)情况及其影响因素。方法:使用自制问卷调查铜仁市碧江区和松桃县2008年底存活且能随访307例PLWHA的CD4检测情况、人口学特征(年龄、性别、婚姻状况、文化程度)、CD4检测相关知识知晓情况以及首次CD4检测时间,分析CD4检测的影响因素。结果:307例PLWHA中既往曾经接受过CD4检测者为273人,占88.93%(273/307),规范接受CD4检测者为183人,占67.03%(183/273),从HIV确诊到首次CD4检测时间>2个月的占83.15%(227/273);男性、知晓CD4检测作用和通过血液进行检测者、接受过培训的患者以及服用抗病毒治疗药品者CD4既往检测率高;CD4规范检测危险因素为>30岁、未婚或离异丧偶、未服用抗病毒治疗药品、离检测点的距离走路在1 h以上或需乘车以及未及时弥补漏掉的CD4检测,不知晓符合治疗标准的CD4值是CD4规范检测的保护因素。结论:应加强30岁以上和非婚PLWHA对CD4检测相关知识的宣传,提供便利的检测条件,促使更多PLWHA接受规范的CD4检测。     

河南省116例首诊艾滋病患者抗病毒治疗免疫学效果评价

目的分析河南省2009年首诊为艾滋病(AIDS)后随即接受抗病毒治疗的患者CD4+T淋巴细胞计数的变化情况。方法收集河南省艾滋病检测实验室网络数据库登记的116例河南省2009年首诊为AIDS后当年即接受抗病毒治疗的患者资料,将其按照治疗前CD4+T淋巴细胞数分成3组(<20个/μl,20~99个/μl和100~350个/μl),使用SPSS 14.0软件对患者治疗前、治疗后约2个月及5个月的CD4+T淋巴细胞数进行统计学分析。结果首诊后接受治疗的3组患者在治疗约2个月后CD4+T细胞计数同治疗前比较都有提高[<20个/μl组:(84.93±64.33)个/μlvs(9.39±5.10)个/μl,P=0.000;20~99个/μl组:(178.71±135.34)个/μlvs(46.62±18.71)个/μl,P=0.001;100~350个/μl组:(316.81±128.81)个/μlvs(197.66±67.59)个/μl,P=0.002],但是在治疗5个月后3组患者CD4+T细胞计数同治疗2个月时比较差异均无统计学意义。治疗前CD4+T细胞基线低的组达到的治疗效果较差。结论早发现、早治疗仍应是河南省开...     

外周血CD4+ T淋巴细胞绝对数及CD4+/CD8+比值在套细胞淋巴瘤中的预后价值

目的：探索外周血T淋巴细胞亚群计数在套细胞淋巴瘤（mantle cell lymphoma,MCL）患者中的分布、与临床特征的相关性及预后价值。方法：回顾性分析2006—2017年92例初诊MCL患者的临床资料。使用简化的MCL国际预后指数（sMIPI）进行预后评分,采用流式细胞术分析T淋巴细胞亚群计数,包括CD4+ T淋巴细胞绝对数（ACD4C）和CD8+ T淋巴细胞绝对数（ACD8C）。Mann?Whitney U及Kruskal?Wallis检验分析T淋巴细胞亚群计数与其他临床指标的相关性。采用 Kaplan?Meier 法进行生存分析,Cox比例风险模型进行预后因素分析。结果：中位随访51个月（12~150个月）,92例患者的中位总生存期（OS）是44个月。1年、3年、5年OS率分别为72%、45%、37%。ACD4C >0.5×109个/L的患者较ACD4C ≤0.5×109个/L的患者的无进展生存期（PFS）和OS更长（P=0.009和P=0.004）。CD4+/CD8+比值>1.2的患者较≤1.2的患者有更长的PFS和OS（P=0.025和 P=0.009）。单变量Cox回归分析显示：体力状态（ECOG评分）≥2分（P=0.021）、B症状（发热、盗汗或体重下降）（P=0.001）、升高的血清乳酸脱氢酶（LDH）（P=0.027）、高sMIPI评分（P=0.004）、低ACD4C（P=0.013）、低CD4+/CD8+比值（P=0.030）与较短的PFS相关。而较短的OS与B症状（P < 0.001）、高sMIPI评分（P=0.004）、升高的LDH（P=0.040）、低ACD4C（P=0.006）和低CD4+/CD8+比值（P=0.012）相关。多因素Cox回归分析显示：B症状（P=0.006）、低ACD4C（P=0.001）是影响PFS的独立预后因素;B症状（P=0.003）、高sMIPI评分（P=0.047）、低ACD4C（P=0.001）、低CD4+/CD8+比值（P=0.031）是影响OS独立的预后因素。结论：低ACD4C、低CD4+/CD8+比值与MCL患者不良的预后相关,ACD4C水平、CD4+/CD8+比值可作为判断MCL患者预后方便且有效的指标。     

不同CD4+水平HIV阳性患者抗病毒治疗的机会性感染分析

目的 对不同CD4+T淋巴细胞(简称CD4+细胞)成人HIV阳性患者启动ART(抗逆转录病毒治疗)1年过程中发生的机会性感染及病死率进行分析,探讨最佳治疗时机以指导治疗.方法 179例HIV感染者分为A组(CD4+≥350/μL),B组(200/μL≤CD4+＜350/μL),C组(CD4+＜200/μL)三组.使用ART治疗,观察时间为1年,比较各组患者治疗开始前及治疗过程中发生的机会性感染及治疗过程中的病死率.结果 三组间机会性感染发生率:C组最高(62.50％),A组最低(6.52％),B组为(32.79％),差异有统计学意义(P＜0.05).结核菌感染C组(15.28％),高于A组(2.17％),差异有统计学意义(P＜0.05).真菌感染则C组(36.11％)高于B组(8.20％),差异有统计学意义(P＜0.05).结论 早期启动ART治疗可以预防HIV感染者机会性感染的发生,降低病死率.对于CD4+细胞数较低的患者,ART治疗的前3个月仍需要密切观察病情变化及机会性感染的发生,降低病死率.     

Correlation of CD4+ T cell count with total lymphocyte count, haemoglobin and erythrocyte sedimentation rate levels in human immunodeficiency virus type-1 disease

Background: Studies in human immunodeficiency virus (HIV) infected adults have demonstrated association of total lymphocyte count (TLC) <1200/mm³ and subseqnent disease progression or mortality. The association of other surrogate makers such as haemoglobin (Hb), and erythrocyte sedimentation rate (ESR) with CD4 count and disease progression has also been suggested. This study was carried out to determine the relationship of CD4-positive T lymphocyte counts with TLC, Hb and ESR in HIV-infected individuals.Methods: The study population comprised of 215 antiretroviral treatment naive HIV-1 infected adults. The CD4 positive T cell counts, TLC, Hb and ESR of study participants were measured. Spearman's rank order correlation and Receiver Operating Characteristic were used for statistical analyses.Result: The sensitivity, specificity, positive and negative likelihood ratios for cut-off value of TLC <1200/mm³ for predicting CD4 counts <200 cells/mm³ and <350 cells/mm³ were 9.4%, 100%, not measurable and 1.1, and 6.1 %, 98.8 %, 5.13 and 0.95, respectively. The association of Hb (<10, 11, 12 g/dl and <10, 12, 14 g/dl for CD4 counts <200 cells/mm³ and <350 cells/mm³, respectively), and ESR (<10, 20 and 30 mm fall after 1 hour) with these two CD4 counts cut-off values were suboptimal.Conclusion: This study reveals the poor association of TLC, Hb, and ESR with CD4 counts in HIV infected adults, thus highlighting the need to review the utility of these surrogate markers, for predicting CD4 counts in people living with HIV/AIDS.     

早期无神经症状的HIV感染者脑代谢和脑血流灌注的MR检测及其与CD4~+T细胞计数的相关性分析

目的 通过磁共振(MR)检测患者脑代谢和血流灌注情况,并探讨人类免疫缺陷病毒(HIV)感染者脑代谢、血流灌注与患者CD4+T细胞计数之间的关系。方法选取2017年7月～2019年7月于我院进行治疗且经过临床确诊的30例获得性免疫缺陷综合征(AIDS)患者和12名志愿者作为研究对象。依据患者和志愿者的CD4+T细胞计数水平分别为A组(13例)、B组(17例)和对照组。全部受检者行常规MRI及MRS扫描,利用MRS自带的软件完成基线校准和代谢物识别并检测三组的N-乙酰天门冬氨酸(NAA)、胆碱(Cho)、肌醇(Mi)和谷氨酰胺复合物(Glx6)等脑代谢指标。脑血流灌注情况采用ASL序列分析,通过rCBF图对灌注情况进行定性分析。结果A组的NAA、Cho和Mi的峰面积均显著低于对照组,Glx6显著高于对照组(P0.05)。B组的Cho峰面积均显著低于对照组,Glx6显著高于对照组(P0.05)。A组患者的皮质、基底节和丘脑的脑血流低灌注比例显著高于对照组(P0.05)。A组和B组的NAA、Cho和Mi与CD4+T淋巴细胞计数呈正相关,而与Glx6呈负相关(P0.05)。A组的皮质和基底节低血流灌注与CD4+T淋巴细胞计数呈显著负相关,B组的皮质、基底节和丘脑与CD4+T淋巴细胞计数呈显著负相关(P0.05)。结论 MR检测技术可以对HIV感染者脑代谢和血流灌注进行有效检测,HIV感染者脑代谢、血流灌注情况与患者CD4+T细胞计数水平有关。     

艾滋病抗病毒疗法患者CD4+ T淋巴细胞变化的相关因素研究

目的  探讨CD4+ T淋巴细胞在艾滋病行抗病毒疗法患者中变化的相关因素。方法  选择180例首次开始行抗病毒治疗的艾滋病患者作为研究对象。随访1年,观察患者CD4+ T淋巴细胞的变化,并根据CD4+ T淋巴细胞是否升高分为升高组与未升高组,采用回顾性方法记录相关信息,筛选出影响CD4+ T淋巴细胞升高的相关因素,采用多因素Logistic回归进行危险因素分析。结果  180例抗病毒治疗的艾滋病患者中,110例（61.1%）CD4+ T淋巴细胞升高>100个/mm3。抗病毒治疗后,两组患者CD4+ T淋巴细胞数量及人类免疫缺陷病毒（HIV）-RNA载量均明显改善,但升高组改善更明显,差异有统计学意义（P <0.05）。性别、年龄、临床分期、漏服及基线CD4+ T淋巴细胞与CD4+ T淋巴细胞升高有相关性,差异有统计学意义（P <0.05）;多因素分析显示,年龄>50岁、基线CD4+ T淋巴细胞≥200个/mm3是促进CD4+ T淋巴细胞升高的因素;年龄≤50岁、漏服及基线CD4+ T淋巴细胞<200个/mm3是CD4+ T淋巴细胞升高的危险因素（P <0.05）。结论  艾滋病患者抗病毒治疗后CD4+ T淋巴细胞数量升高,但年龄、漏服及基线CD4+ T淋巴细胞可影响其升高程度,在临床实际中需要引起重视。