目的 研究母代不同孕期巨细胞病毒（CMV）感染对自身精神及行为的影响。方法 72只BALB/c雌鼠随机分为12组（A1、A2、A3、B1、B2、B3、C1、C2、C3、D1、D2、D3,每组6只）,A为孕期再感染、B为既往感染、C为孕期原发感染、D为空白对照,1为孕早期、2为孕中期、3为孕晚期。母鼠腹腔注射小鼠CMV（murine CMV,MCMV）Smith株建立播散性感染模型,或注射无菌生理盐水建立对照模型。母鼠产仔后同笼合养,产后22 d分笼;母鼠做行为学试验。试验结束,每组随机处死3只母鼠;测量子宫、肝、脑脏器重量系数及唾液腺中MCMV含量。结果 A、B、C组母鼠产后次日体质量均低于D组（均P<0.05）,其中C2、C3组母鼠低体质量情况持续至产后22日（均P<0.05）。A、B、C组母鼠唾液腺组织均测出MCMV。与D组母鼠相比,A1、C1组母鼠活胎率降低（均P<0.05）,A、C组母鼠的子宫、肝、脑脏器系数升高（均P<0.05）且脑组织有病损表现。产后6天时,A3、B3、C组母鼠水平运动总距离和直立次数减少（均P<0.05）,糖水偏好量降低（均P<0.05）,悬尾不动时间延长（P<0.05）;其中,C2、C3组母鼠以上行为退缩情况至产后22天仍存在,且有逃避潜伏时间延长（均P<0.01）,穿越原平台位置次数减少（均P<0.01）情况。结论 孕期CMV感染损害母代身心健康,有可能增加子代不良抚养的风险。

Objective To investigate the effects of cytomegalovirus（CMV）infection in different stages of maternal pregnancy on its own spirit and behavior．Methods A total of 72 female BALB/c mice were randomly divided into 12 groups（each group had 6 mice）：A1-A3,B1-B3,C1-C3,D1-D3（group A had re-infection,group B had previous infection,group C had primary infection,group D was blank control,group 1 was in early pregnancy,group 2 was in middle pregnancy,group 3 was in late pregnancy）．The disseminative infection model was established by intraperitoneal inoculation of murine CMV（MCMV）Smith strain,and the blank control model was established by intraperitoneal inoculation of 0.9% sterile saline（NaCl）．After 21 days of parturition,the mothers and offspring were reared in separate cages,mothers were selected for the behavior experiments．At the end of all the behavior tests,3 mothers in each group were killed randomly．Weighed and calculated the organ coefficients of the uteri,livers and brains,and detected the expression levels of MCMV in salivary gland．Results On the first day after delivery,the weights of mothers in groups A,B and C were lower than those in group D（all P<0.05）,the low body weight of mice in C2 and C3 groups lasted to the 22th day（all P<0.05）．The MCMV in salivary gland tissue were found in groups A,B and C,but not in group D．The live fetus rates of groups A1 and C1 were significantly lower than that of group D．The organ coefficients of uteri,livers and brains in groups A and C were higher than those in group D（all P<0.05）．And the lesions of brain tissues in groups A and C were more serious than in the other groups．On the 6th day,compared with the other groups,the mothers of groups A3,B3 and C were significantly abnormal in the open field test,the tail suspension test and the sugar preference test（all P<0.05）．But on 22th day,only the mothers of groups C2 and C3 were significantly abnormal in those tests（all P<0.01）,and even in the water maze test（all P<0.01）．Conclusions Maternal CMV infection in different stages pregnancy have impacts on mother mice's physical and mental health．Those bad situations may bring poor parenting to the offspring．

目的 分析儿童肺炎支原体肺炎（MPP）合并EB病毒（EBV）感染的临床表现及危险因素,以期进一步提升疾病预防及治疗有效率。方法 分析2020年4月—2022年4月间于我院进行入院治疗的MPP合并EBV感染患儿基本资料,选择84例进行研究,另选择单一EBV感染患儿作为对照组,对比两组患儿临床表现差异及各项指标,分析合并感染的危险因素。结果 一般资料上,研究组患儿低体质量、免疫力低下、流行病接触史占比均高于对照组,数据差异存在统计学意义（P<0.05）;临床表现上,研究组患儿高热、发热时间≥10 d、呼吸困难、胸腔积液、侵犯多肺叶占比及白细胞、淋巴细胞指标均高于对照组,血小板、Hb低于对照组,数据差异存在统计学意义（P<0.05）;经多因素分析发现,低体质量、免疫力低下、流行病接触史、高热、发热时间≥10 d、呼吸困难、胸腔积液、侵犯多肺叶、白细胞、血小板、Hb、淋巴细胞是MPP合并EBV感染的重要危险因素（P<0.05）。结论 儿童MPP合并EBV感染临床病症表现明显,且相较于单一EBV感染症状更为严重,医务人员需要根据患儿表现及相关危险因素及时予以准确诊断,对患儿实施针对性有效治疗,提升疾病治疗有效率。

目的 分析不同年龄、不同季节河源市源城区呼吸道感染的病原学情况,指导临床用药。方法 回顾性研究2020年3月—2022年2月2 468例呼吸道感染的住院患儿,取咽部分泌物送广州达安临床检验中心进行呼吸道核酸六项检测并分析结果。包括：肺炎链球菌（Sp）、呼吸道合胞病毒（RSV）、卡他莫拉菌（MC）、流感嗜血杆菌（Hi）、肺炎支原体（LP）、腺病毒（ADV）。结果 （1）2 468例患儿的标本中阳性率52.8%,其中RSV最高,其他依次为Sp、Hi、MC、MP、ADV。而混合感染仅次于RSV。（2）婴儿组和幼儿组以RSV感染为主,在学龄前组和学龄组儿童中,以Sp感染为主,各病原体的混合感染组合很多,一种细菌合并一种病毒多见。（3）秋冬季是河源市源城区呼吸道感染的高发季节,RSV是秋冬季呼吸道感染最主要的病原体。结论 秋冬季节为河源市源城区呼吸道感染的高发季节,RSV为该季节的主要病原体。RSV也是婴幼儿组感染的主要致病菌,随着年龄增大,细菌感染导致的呼吸道疾病逐渐占优势。混合感染在各年龄组中均占比较高,值得临床诊疗的重视。

Objective To analyze the etiology of respiratory tract infection in Yuancheng District of Heyuan City ,which was in different ages and seasons,and to provide guidance of clinical drug usage．Methods Cases of 2 468 hospitalized children with respiratory tract infection from March 2020 to February 2022 were analyzed．The secretion from pharynx was collected and sent to Guangzhou Da’an Clinical Examination Center for six respiratory nucleic acid tests and then the results were analyzed,including Streptococcus pneumoniae（Sp）,respiratory syncytial virus（RSV）,Moraxella catarrhalis（MC）,Haemophilus influenzae（Hi）,Mycoplasma pneumonia（MP）,adenovirus（ADV）．Results The positive rate of 2 468 hospitalized children with respiratory tract infection was 52.8%,of which the highest was RSV,followed by Sp,Hi,MC,MP,ADV．Meanwhile the mixed infection rate was second to RSV．RSV infection was the main infection in infant group and early-aged children group,while in preschool group and school-aged group,Sp infection was the main infection．There were many mixed infection of pathogen,and one bacteria combined with one virus was more common．Respiratory tract infection had high incidence in autumn and winter in Yuancheng District of Heyuan City,RSV was the major pathogen．Conclusions Autumn and winter were the seasons with high respiratory tract infection incidence in Yuancheng District of Heyuan City,and RSV was the main pathogen in these two seasons．RSV was also the main pathogen of infant group infection．But with the increase of children’s age,bacterial infection became the main reason of respiratory tract diseases．Mixed infection accounts for a high proportion in all age groups,which should be valued in clinical diagnosis and treatment．

目的 探讨慢性乙型肝炎病毒（HBV）感染对妊娠期糖尿病（GDM）孕妇的妊娠并发症、孕晚期生殖道B族链球菌（GBS）感染情况以及妊娠结局的影响。方法 选取2020年1月1日—12月31日在广州市妇女儿童医疗中心定期产检、足月、单胎妊娠的GDM孕妇共583例,其中合并HBV感染者（GDM+HBV组）48例,无合并者（GDM组）535例。比较2组的妊娠期并发症、妊娠晚期（妊娠35~37周）生殖道GBS感染情况、妊娠结局以及阴道分娩者的母儿结局。结果 与GDM组患者相比,GDM+HBV组患者出现妊娠期肝内胆汁淤积症、孕晚期生殖道GBS感染者比例较高,孕期出现胎盘早剥者比例较高,阴道分娩过程中出现产时发热、羊水粪染和新生儿入住NICU者比例均较高（均P<0.05）。结论 与无合并慢性HBV感染的GDM患者相比,合并慢性HBV感染的GDM患者在围产期的母儿风险升高。

Objective To investigate the effects of chronic hepatitis B virus（HBV）infection on pregnancy complications,group B streptococcus（GBS）infection in third trimester and pregnancy outcome in pregnant women with gestational diabetes mellitus（GDM）．Methods A retrospective study of 583 pregnant women with GDM,singleton gestation and cephalic presentation delivered at term in Guangzhou Women and Children’s Medical Center was carried out．Including 48 GDM women complicated with chronic HBV infection（GDM+HBV group）and 535 GDM women without HBV infection（GDM group）．Pregnancy complications,GBS infection in third trimester（gestation 35-37 weeks）,pregnancy outcomes,maternal and neonatal outcomes of vaginal delivery were compared between the two groups．Results GDM+HBV group had a higher proportion of intrahepatic cholestasis of pregnancy（ICP）and GBS infection in third trimester than GDM group,and a higher proportion of placental abruption during pregnancy．GDM+HBV group showed a significantly increased proportion in intrapartum fever,meconium-stained amniotic fluid and neonatal intensive care unit admission during vaginal delivery than GDM group（all P<0.05）．Conclusions GDM women with chronic HBV infection are associated with increased maternal and fetal risk during pregnancy and delivery．

目的 探讨脑卒中患者多重耐药菌（MDROs）医院感染风险因素,并进行病原学特点分析。方法 选择2020年1月—2022年12月福建中医药大学附属福鼎医院神经内科病房收治的160例脑卒中患者为研究对象,评估患者的MDROs医院感染发生状况,调查患者的一般资料并进行多因素分析。结果 在160例患者中,发生医院感染20例,分离到病原体26株,其中8例样本为MDROs（研究组,其他归为对照组）,来源于8例患者,占比5.00%,包括耐甲氧西林金黄色葡萄球菌（MRSA）3株,耐碳青霉烯大肠埃希菌（E.coli）2株、耐碳青霉烯肺炎克雷伯菌（KP）1株、全耐药KP1株、耐碳青霉烯PA1株。研究组的美国国立卫生院神经功能缺损（NIHSS）评分、急性生理学和慢性健康状况评价Ⅱ（APACHEⅡ）评分、糖尿病、低蛋白血症、置管留置时间、住院时间等与对照组对比差异有统计学意义（P<0.05）。二分类Logistic回归分析显示,上述指标均为导致MDROs医院感染发生的重要因素（P<0.05）。结论 脑卒中患者MDROs医院感染的发生率依然比较高,病原菌多为耐甲氧西林MRSA、耐碳青霉烯E.coli,患者的NIHSS评分、APACHEⅡ评分、糖尿病、低蛋白血症、置管留置时间、住院时间为主要的MDROs感染风险因素。

目的 对本院老年重症肺炎患者的临床资料进行回顾性分析,为老年重症肺炎多药耐药菌感染的临床诊疗提供参考。方法 回顾性分析本院医院76例老年重症肺炎患者的病例信息,将患者随机分为研究组和对照组,每组38例,研究组患者在对照组基础上(头孢哌酮／舒巴坦)联合胸腺肽α1治疗。研究2组患者的痰液致病菌分布及其临床特点,通过对比2组患者治疗前后免疫功能指标T淋巴细胞CD4⁺及炎症因子超敏C-反应蛋白(hypersensitive C-reactive protein,hs-CRP)、白介素-6(interleukin-6, IL-6)、肿瘤坏死因子-α(tumor necrosis factor-α, TNF-α)水平变化,对头孢哌酮/舒巴坦联合胸腺肽α1治疗老年重症肺炎的临床效果进行分析。结果 76例老年重症肺炎患者中,共检出143株病原菌,以不动杆菌属为主的革兰氏阴性菌(89株)为主要致病菌株,占比64.3%,革兰氏阳性菌(54株)以葡萄球菌属为主,占比35.7%;排名前3位的主要致病菌为:铜绿假单胞菌(33.6%)、金黄色葡萄球菌(22.4%)和大肠埃希菌(14.7%)。痰液分离出的致病菌出现了普遍的严重耐药性,主要以多药耐药铜绿假单胞菌为主。2组治疗前 T 淋巴细胞CD4⁺、hs-CRP、IL-6、TNF-α水平对比无差异(P＞0.05),治疗后观察组CD4⁺水平更高,而 CRP、TNF-α、IL-6水平更低,与对照组有差异(P＜0.05)。结论 老年重症肺炎多药耐药菌重症肺炎检出病原菌主要以铜绿假单胞菌为主,治疗上联合使用胸腺肽α1,能够有效改善患者的免疫抑制状态、减轻老年患者机体炎症反应,对于提高老年患者临床治疗效果及改善患者预后有着重要的临床意义,值得广泛推广。

目的 探讨广州地区儿童2019新型冠状病毒(2019 novel coronavirus, 2019-nCoV)感染筛查/疑似病例的流行病学特点、发病特点、可能的原因及防控建议。方法 回顾性分析2020年1月20日—2020年2月29日广州市唯一一家儿童2019-nCoV感染隔离定点医疗单位隔离病房收治住院的符合儿童2019-nCoV感染筛查/疑似病例129例,对其流行病学、发病特点、临床特征、实验室检查及转归、随访等进行总结分析。 结果 男 79例,女 50例,最小1个月,最大13岁,中位数2岁,51例(39.5%)有武汉疫区旅游或居住史,20例(15.5%)有与来自疫区有呼吸道症状人员接触史,17例(13.1%)周边或社区有确诊病例,3例(2.3%)有确诊病人接触史(其中2例为家庭确诊病例密切接触史),38例(29.5%)为临床符合或聚集性发病;临床症状:发热121例(93.8%),咳嗽92例(71.3%),流涕50例(38.8%),32例伴有腹泻、呕吐/腹痛(24.8%),102例(79.0%)白细胞降低或正常,C反应蛋白(C-reactive protein,CRP)＜20 mg/L有103例(79.8%),57例(44.2%)胸片或CT示肺部斑片状影或实变;病原学检查:2019-nCoV实时荧光定量反转录PCR检测结果:所有患儿及陪同家属都有行咽拭子检查,只有21例患儿(16.3%)有行肛拭子检查,仅有1例(0.78%)家庭确诊病例密切接触者肛拭子阳性,但连续多次咽拭子结果阴性,余患者肛拭子和咽拭子及陪同家属咽拭子结果均阴性。其他病原学检查结果61例(47.3%),包括14例RSV阳性,9例流感病毒A,8例人偏肺病毒,6例肠道病毒,6例流感病毒B,6例肺炎支原体,4例副流感病毒1型,1例副流感病毒3型,2例人博卡病毒,3例腺病毒,1例肺炎克雷伯菌,1例人型葡萄球菌,其中1例合并副流感病毒1型及人博卡病毒。跟踪唯一1例确诊患者咽拭子多次检查均阴性,肛拭子持续19天后才转阴,一直无任何症状。其余患者好转出院后第3天、7天及14天进行随访,无异常发现。结论 儿童2019-nCoV感染筛查/疑似病例临床多表现为呼吸道或消化道症状,确诊主要依靠核酸检测,新冠病毒感染确诊率极低,而其将近50%病例能找到除新冠病毒外的其它相关病原体;高危患者为密切接触者,但存在漏诊的可能,肛拭子阳性率或高于咽拭子。

Objective To explore the epidemiological characteristics, onset characteristics, pathogenic mechanism of 2019-nCoV infection in children, and its control and prevention in Guangzhou. Methods From January 20, 2020 to February 29, 2020, a retrospective analysis was carried out on 129 suspected cases of 2019-nCoV infection admitted to the isolation ward of the only medical unit designated for children in Guangzhou. The epidemiology, disease characteristics, clinical characteristics, laboratory examination, outcome and follow-up were summarized and analyzed. Results There were 79 males and 50 females, with a minimum age of 1 month and a maximum age of 13 years. Anong them, 51 cases (39.5%) had a history of tourism or residence in the epidemic area of Wuhan, 20 cases (15.5%) had a history of contact with people with respiratory symptoms from the epidemic area, 17 cases (13.1%) with a confirmed case in the surrounding area or community, 3 cases (2.3%) had a history of contact with a confirmed patient (2 of them were family clustering cases), 38 cases (29.5%) were clinically suspected cases. Clinical symptoms: 121 cases with fever (93.8%), 92 cases with coughing (71.3%), 50 cases with runny nose (38.8%), 32 cases with diarrhea, vomiting or abdominal pain (24.8%). In 102 cases (79.0%), white blood cells were decreased or normal, 103 cases (79.8%) with CRP＜20 mg/L, and 57 cases (44.2%) showed focal infection on chest X-ray or CT scan. Etiological examination: only one case (0.78%) of the family confirmed cases had positive anal swab result, but the throat swab results were negative all the time. The anal swab and throat swab results of other patients and the throat swab results of their accompanying family members were negative. Other pathogens were detected in 61 cases (47.3%), including 14 RSV positive cases, 9 influenza A positive cases, 8 human metapneumovirus positive cases, 6 enterovirus positive cases, 6 influenza B positive cases, 6 Mycoplasma pneumoniae positive cases, 4 parainfluenza virus type 1 positive cases, 1 parainfluenza virus type 3 positive cases, 2 human bocavirus positive cases, 3 adenovirus positive cases, 1 Klebsiella pneumoniae positive cases, 1 Human Staphylococcus positive case, and 1 case with parainfluenza virus type 1 and human bocavirus. The only confirmed patient was followed up while multiple pharyngeal swab results were negative, and the positive anal swab results lasted for 19 days before turning negative and remained asymptomatic. Other patients were followed up on the 3rd, 7th and 14th day after discharge, and no abnormal findings were found. Conclusion Screening/suspected cases of 2019-nCoV infection in children were mostly clinically manifested as respiratory or gastrointestinal symptoms. The diagnosis rate of nucleic acids was extremely low, and there was a possibility of missed diagnosis. Nearly 50% of cases could find other relevant pathogens excluding the 2019-nCoV. The positive rate of anal swab results was higher than that of pharyngeal swab.

目的 分析阴道灌洗液中炎性因子表达水平与高危型人乳头瘤病毒(HPV)持续感染的相关性。方法 选择本院2019年3月—2021年3月接诊的80例高危型HPV持续感染患者作为试验组,以病理组织检查结果分组,将19例宫颈癌患者作为试验组1、将30例宫颈上皮不典型增生(CIN)I级患者作为试验组2,将31例CIN II、III级患者作为试验组3,选取同期门诊体检的30例健康女性作为对照组,均进行TGF-β、IFN-γ、IL-17、IL-6表达水平检测,比较4组TGF-β、IFN-γ、IL-17、IL-6水平、高危型HPV负荷量,Pearson分析TGF-β、IFN-γ、IL-17、IL-6水平与高危型HPV负荷量的相关性。结果 阴道灌洗液炎症因子水平、高危型HPV负荷量4组相比较,差异均有统计学意义(P<0.05)。TGF-β、IL-17、IL-6水平与高危型HPV负荷量呈正相关性,与IFN-γ水平呈负相关性,P＜0.05。结论 高危型HPV持续感染患者机体阴道灌洗液中炎性因子水平与高危型HPV负荷量存在一定的相关性,高危型HPV负荷量与IFN-γ水平呈负相关性,与TGF-β、IL-17、IL-6水平呈正相关性,通过检测阴道灌洗液中炎性因子水平,可评估HPV感染程度。

Objective To analyze the correlation between the expressions of inflammatory factors in vaginal lavage fluid and persistent infection of high-risk human papillomavirus(HR-HPV). Methods A total of 80 patients with HR-HPV persistent infection in our hospital from March 2019 to March 2021 were selected as the experimental group. According to the pathological examination results, 19 patients with cervical cancer were selected as the experimental group 1, 30 patients with CIN grade I were selected as the experimental group 2, and 31 patients with CIN grade II and III were selected as the experimental group 3. Thirty healthy women in the same period were selected as the control group. HR-HPV load, TGF- β, IFN-γ, IL-17 and IL-6 levels were detected and were compared among the four groups. Pearson analysis of correlation between TGF- β, IFN-γ, IL-17, IL-6 levels and HR-HPV load was carried out. Results There were significant differences in the levels of inflammatory factors in vaginal lavage fluid and HR-HPV load among the four groups (P<0.05). TGF- β、IL-17 and IL-6 levels were positively correlated with HR-HPV load and negatively correlated with IFN-γ (P<0.05). Conclusions There is a certain correlation between inflammatory factors in vaginal lavage fluid and HR-HPV load in patients with HR-HPV persistent infection. HR-HPV load is negatively correlated with IFN-γ, and positively correlated with TGF-β, IL-17 and IL-6. The degree of HPV infection could be evaluated by detecting the inflammatory factors in vaginal lavage fluid.

目的 探讨负性调节细胞CD4⁺CD25⁺T及其相关细胞因子在慢性阻塞性肺病(COPD)患者外周血中的表达与合并细菌感染的相关性。方法 纳入2018年1月—2019年12月间收治的66例COPD患者作为研究对象,其中急性加重期COPD患者(AECOPD)36例、稳定期患者30例,并纳入同期体检健康者30例作为对照组。对所有纳入的研究对象外周血标本中的CD4⁺CD25⁺T调节性T细胞及其相关细胞因子[白介素-4(IL-4)、白介素-10(IL-10)、干扰素-γ(IFN-γ)]表达水平进行检测,分析相关指标水平与COPD是否合并细菌感染的关系,及预测细菌感染的效能。结果 AECOPD和稳定期COPD患者CD4⁺、CD4⁺CD25⁺、IFN-γ/IL-4水平均低于对照组(P<0.05),IL-4、IL-10水均高于对照组(P<0.05);AECOPD患者IFN-γ水平高于对照组(P<0.05);AECOPD患者CD4⁺、CD4⁺CD25⁺水平低于稳定期COPD患者(P<0.05),IL-4、IL-10、IFN-γ均高于稳定期COPD患者(P<0.05);CD4⁺、CD4⁺CD25⁺水平与IL4、IFN-γ均呈负相关关系(P<0.05),CD4⁺水平与IL-10呈负相关关系(P<0.05);COPD合并感染者CD4⁺水平低于未合并感染者(P<0.05),IL-4、IFN-γ水平均高于未合并感染者(P<0.05);COPD合并革兰氏阴性菌感染者CD4⁺CD25⁺水平低于未合并感染者(P<0.05),IL-10水平均高于未合并感染者(P<0.05);CD4⁺、IL-4、IL-10、IFN-γ均是预测COPD患者合并细菌感染的有效指标(P<0.05),其中IL-4和IFN-γ效能较高。结论 CD4⁺、CD4⁺CD25⁺Treg细胞及其相关细胞因子参与COPD发生发展和患者细菌感染,监测其水平变化有利于为临床诊治提供信息。

Objective To investigate the correlation between the expressions of negative regulatory cell CD4⁺CD25⁺T and its related cytokines in peripheral blood and bacterial infection of patients with chronic obstructive pulmonary disease (COPD). Methods Sixty-six COPD patients admitted between January 2018 and December 2019 were included as the research subjects, including 36 patients with acute exacerbation of COPD (AECOPD) and 30 patients with stable COPD. Another 30 healthy people undergoing physical examination during the same period were included in control group. The expression levels of CD4⁺CD25⁺ regulatory T cell and its related cytokines [interleukin-4 (IL-4), interleukin-10 (IL-10), interferon-γ (IFN-γ)] in the peripheral blood samples were detected among the included subjects. The relationship between levels of related indicators and presence or absence of bacterial infection in COPD and the efficacy of predicting infection were analyzed. Results The levels of CD4⁺, CD4⁺CD25⁺ and IFN-γ/IL-4 in patients with AECOPD and patients with stable COPD were lower than those in control group (P<0.05), while the levels of IL-4 and IL-10 were higher than those in control group (P<0.05). The IFN-γ level of AECOPD patients was higher than that of control group (P<0.05). The levels of CD4⁺ and CD4⁺CD25⁺of AECOPD patients were lower than those of stable COPD patients (P<0.05), while the levels of IL-4, IL-10 and IFN-γ were all higher than those of stable COPD patients (P<0.05). The levels of CD4⁺ and CD4⁺CD25⁺were negatively correlated with IL-4 and IFN-γ (P<0.05), and the CD4⁺level was negatively correlated with IL-10 (P<0.05). The CD4⁺ level in COPD patients with infection was lower than that in patients without infection (P<0.05), while the levels of IL-4 and IFN-γ were higher than those in patients without infection (P<0.05). The CD4⁺CD25⁺level of COPD patients with Gram-negative bacteria infection was lower than that of patients without infection (P<0.05), while the IL-10 level was higher than that of patients without infection (P<0.05). CD4⁺, IL-4, IL-10 and IFN-γ were effective indicators in predicting bacterial infection in COPD patients (P<0.05), and IL-4 and IFN-γ had higher efficacy. Conclusions CD4⁺, CD4⁺CD25⁺ T cell and related cytokines are involved in the occurrence and development of COPD and bacterial infection in patients. Monitoring changes of those levels is helpful to provide information for clinical diagnosis and treatment.

目的 了解遵义地区住院新生儿TORCH感染状况、发病率,为相关疾病的早期预防和治疗提供重要参考依据。方法 采用回顾性研究方法,对遵义市妇幼保健院2018—2019年住院新生儿弓形虫(TOX)、风疹(RV)、巨细胞(CMV)和单纯疱疹病毒(HSV)Ⅰ型感染结果进行分析。结果 遵义地区4 604例住院新生儿TORCH-IgM的总体阳性率为1.35%,其中CMV、TOX、RV、HSV Ⅰ的阳性率分别是1.00%、0.20%、0.13%和0.02%;对应TORCH-IgG的阳性率分别是67.38%、0.91%,54.54%、22.22%。对2018—2019年住院新生儿TORCH感染筛查结果显示:CMV-IgM阳性率分别从1.47%下降到0.43%(χ²=4.981,P=0.026),RV-IgM的阳性率从0.24%下降到0.00(χ²=12.446,P<0.001),差异均有统计学意义。在研究的2 607例男性患儿中,CMV、TOX、RV、HSV Ⅰ的IgM阳性率率分别是0.19%、0.11%、0.96%和0.04%,其IgG的阳性率为1.07%、55.20%、67.93%和22.48%。在研究的1 997例女性患儿中,CMV、TOX、RV、HSV Ⅰ的IgM阳性率分别是0.20%、0.15%、1.05%和0.00%,其IgG的阳性率为0.70%、53.68%、66.65%和21.88%。不同CMV-IgM感染对谷丙转氨酶(ALT)和谷草转氨酶(AST)的活性影响研究中,CMV-IgM抗体阳性对照组的ALT活性高于阴性组(t=-2.793,P<0.05),AST的活性无差异(t=0.067,P>0.05) 结论 遵义地区4 604例住院新生儿中以CMV感染率相对较高,不容忽视。2018—2019年CMV和RV的新近感染率呈下降趋势。CMV-IgM的感染能引起ALT活性的升高。

Objective To reveal the TORCH infection status and incidence of hospitalized newborns in Zunyi area, and provide important reference for early prevention and treatment of related diseases. Methods The retrospective research method was used to analyze the infection results of toxoplasma gondii (TOX), rubella virus (RV), cytomegalovirus (CMV) and herpes simplx virus (HSV) type I in hospitalized newborns in Zunyi Maternal and Child Health Hospital from 2018 to 2019. Results The overall positive rate of TORCH-IgM in 4 604 hospitalized newborns in Zunyi area was 1.35%, of which the positive rates of CMV, TOX, RV, and HSV Ⅰ were 1.00%, 0.20%, 0.13% and 0.02%, respectively; the corresponding TORCH-IgG positive rates were 67.38%, 0.91%, 54.54%, 22.22%. The TORCH infection screening results of neonates hospitalized in 2018—2019 showed that the CMV-IgM positive rate decreased from 1.47% to 0.43% (χ²=4.981, P=0.026), and the RV-IgM positive rate decreased from 0.24% to 0.00 (χ²=12.446, P< 0.001), the differences were statistically significant. In 2 607 male children, the IgM positive rates of CMV, TOX, RV and HSVⅠwere 0.19%, 0.11%, 0.96% and 0.04%, respectively; and the corresponding IgG positive rates were 1.07%, 55.20%, 67.93% and 22.48%. In 1 997 female children, the IgM positive rates of CMV, TOX, RV and HSVⅠwere 0.20%, 0.15%, 1.05% and 0.00,respectively; and the corresponding IgG positive rate was 0.70%, 53.68%, 66.65% and 21.88%. In the study of effects of different CMV-IgM infection on alanine aminotransferase(ALT) and aspartate aminotransferase(AST) activity, the ALT activity of CMV-IgM positive group was significantly higher than that of negative group (t=-2.793, P<0.05), and there was no difference in AST activity between the two groups (t=0.067, P>0.05). Conclusions The CMV infection rate among 4 604 hospitalized newborns in Zunyi area was relatively high, which should not be ignored. The recent infection rates of CMV and RV showed a downward trend from 2018 to 2019. CMV-IgM infection could cause an increase in ALT activity.