genotypes

基因型
  • 文章类型: Journal Article
    腹泻,通常由轮状病毒(RV)和诺如病毒(NV)引起,是全球健康问题。本研究集中于济宁市2021年至2022年的RV和NV。在2021年至2022年之间,共收集了1052个腹泻样本。实时定量荧光逆转录酶-PCR检测RV-A,NVGI,和NVGII。对于RV-A阳性样本,VP7和VP4基因测序用于基因型分析,其次是进化树的建造。同样,对于NV-GII阳性样本,对VP1和RdRp基因进行测序以进行基因型分析,随后建造了进化树。在2021年至2022年之间,济宁市的检出率各不相同:仅RV-A(不包括RV-A和NVGII的合并感染)为7.03%,NVGI为0.10%,仅NVGII(不包括RV-A和NVGII的共感染)为5.42%,RV-A和NVGII共感染1.14%。最高的RV-A比率显示在≤1岁和2-5岁的儿童中。济宁,金乡县,和梁山县的RV-A比率明显较高,分别为24.37%(不包括RV-A和NVGII的合并感染)和18.33%(不包括RV-A和NVGII的合并感染),分别。济宁,曲阜市,微山没有RV-A阳性。微山的NVGII比率最高,为35.48%(不包括RV-A和NVGII的共感染)。基因型分析显示,2021年,G9P[8]和G2P[4]占主导地位,分别为94.44%和5.56%,分别。2022年,G8P[8],G9P[8],G1P[8]突出,为75.86%,13.79%,10.35%,分别。2021年,GII.3[P12],GII.4[P16],GII.4[P31]占71.42%,14.29%,和14.29%,分别。2022年,GII.3[P12]和GII.4[P16]分别占55.00%和45.00%,分别。RV-A和NV在不同的时间范围内显示出不同的模式,年龄组,和济宁市内的地区。从2021年到2022年,济宁市流行的RV-A和NVGII菌株也发生了基因型变化。建议对RV-A和NV进行持续监测,以进行有效的预防和控制。
    Diarrhea, often caused by viruses like rotavirus (RV) and norovirus (NV), is a global health concern. This study focuses on RV and NV in Jining City from 2021 to 2022. Between 2021 and 2022, a total of 1052 diarrhea samples were collected. Real-Time Quantitative Fluorescent Reverse Transcriptase-PCR was used to detect RV-A, NV GI, and NV GII. For RV-A-positive samples, VP7 and VP4 genes were sequenced for genotype analysis, followed by the construction of evolutionary trees. Likewise, for NV-GII-positive samples, VP1 and RdRp genes were sequenced for genotypic analysis, and evolutionary trees were subsequently constructed. Between 2021 and 2022, Jining City showed varying detection ratios: RV-A alone (excluding co-infection of RV-A and NV GII) at 7.03%, NV GI at 0.10%, NV GII alone (excluding co-infection of RV-A and NV GII) at 5.42%, and co-infection of RV-A and NV GII at 1.14%. The highest RV-A ratios were shown in children ≤1 year and 2-5 years. Jining, Jinxiang County, and Liangshan County had notably high RV-A ratios at 24.37% (excluding co-infection of RV-A and NV GII) and 18.33% (excluding co-infection of RV-A and NV GII), respectively. Jining, Qufu, and Weishan had no RV-A positives. Weishan showed the highest NV GII ratios at 35.48% (excluding co-infection of RV-A and NV GII). Genotype analysis showed that, in 2021, G9P[8] and G2P[4] were dominant at 94.44% and 5.56%, respectively. In 2022, G8P[8], G9P[8], and G1P[8] were prominent at 75.86%, 13.79%, and 10.35%, respectively. In 2021, GII.3[P12], GII.4[P16], and GII.4[P31] constituted 71.42%, 14.29%, and 14.29%, respectively. In 2022, GII.3[P12] and GII.4[P16] accounted for 55.00% and 45.00%, respectively. RV-A and NV showed varying patterns for different time frames, age groups, and regions within Jining. Genotypic shifts were also observed in prevalent RV-A and NV GII strains in Jining City from 2021 to 2022. Ongoing monitoring of RV-A and NV is recommended for effective prevention and control.
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  • 文章类型: Journal Article
    牛冠状病毒(BCoV),牛轮状病毒,牛病毒性腹泻病毒,牛星状病毒是引起牛腹泻的最常见的肠道病原病毒。我们从2020年1月至2023年8月收集了1646份牛粪便样本。BCoV是检测到的主要病原体,阳性率为34.02%(560/1646)。在670份腹泻样本和976份无症状样本中,209和351为BCoV阳性,分别。研究与BCoV相关的腹泻的相关性表明,感染后腹泻症状的发作与牛的年龄密切相关,也可能与品种有关。我们扩增并测序了血凝素酯酶(HE),刺突蛋白,和部分阳性样本的整个基因组,并获得了六个完整的HE序列,七个完整的尖峰序列,和六个完整的基因组。分子鉴定表明,有6个菌株是分枝的中国菌株,日本菌株,和来自GⅡb亚组的部分美国菌株。菌株HBSJZ2202和JSYZ2209在HE上有四个氨基酸插入。我们还分析了ORF1a,发现GIIb中各个地区的差异,它们位于系统发育树中的不同分支上。这项工作为进一步调查BCoV的流行病学以及了解和分析BCoV的分布和动态提供了数据。
    Bovine coronavirus (BCoV), bovine rotavirus, bovine viral diarrhea virus, and bovine astrovirus are the most common intestinal pathogenic viruses causing diarrhea in cattle. We collected 1646 bovine fecal samples from January 2020 to August 2023. BCoV was the major pathogen detected, with a positive rate of 34.02% (560/1646). Of the 670 diarrheal samples and 976 asymptomatic samples, 209 and 351 were BCoV-positive, respectively. Studying the relevance of diarrhea associated with BCoV has shown that the onset of diarrheal symptoms post-infection is strongly correlated with the cattle\'s age and may also be related to the breed. We amplified and sequenced the hemagglutinin esterase (HE), spike protein, and whole genomes of the partially positive samples and obtained six complete HE sequences, seven complete spike sequences, and six whole genomes. Molecular characterization revealed that six strains were branched Chinese strains, Japanese strains, and partial American strains from the GⅡb subgroup. Strains HBSJZ2202 and JSYZ2209 had four amino acid insertions on HE. We also analyzed ORF1a and found disparities across various regions within GIIb, which were positioned on separate branches within the phylogenetic tree. This work provides data for further investigating the epidemiology of BCoV and for understanding and analyzing BCoV distribution and dynamics.
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  • 文章类型: Journal Article
    背景:高危型人乳头瘤病毒(HPV)的持续感染被认为是宫颈上皮内瘤变和宫颈癌的主要原因。但HPV感染引起的各种宫颈病变可通过及时接种疫苗得到适当预防。然而,HPV基因型的分布在地理上有所不同.
    方法:回顾性分析2020-2022年中国咸宁市16,150例女性高危型HPV流行情况。HPV基因分型使用PCR-RDB试剂盒进行,该试剂盒可检测中国国家药品监督管理局推荐的18种高危型HPV基因型。分析18种高危型HPV基因型的患病率及其与宫颈病变的关系以及疫苗的疗效。
    结果:共有2431名女性被证实患有不同类型的高危型HPV感染。总阳性率达15.05%(2431/16,150)。最普遍的高危型HPV基因型是HPV52、16、58、53和51。高危型HPV的患病率在≤20岁(20.95%)和≥61岁(20.56%)达到峰值。宫颈癌病例中最常见的高危型HPV基因型是HPV16、58、18、33和52。HPV16、52、58、33和18inCIN2/3例,和HPV52、58、16、53和18在CIN1病例中,分别。
    结论:HPV16、58和18是咸宁最危险和致癌的基因型,中国。开展高危型HPV流行病学调查对指导HPV疫苗接种工作具有重要的临床价值。
    BACKGROUND: The persistent infection of high-risk Human papillomavirus(HPV) is considered the main cause of cervical intraepithelial neoplasia and cervical cancer. But various cervical lesions caused by HPV infection can be properly prevented by timely vaccination. However, the distribution of HPV genotypes varies geographically.
    METHODS: Retrospective analysis of high-risk HPV prevalence of 16,150 women from 2020 to 2022 in xianning of China. HPV genotyping was performed using a PCR-RDB Kit that can detect 18 high-risk HPV genotypes recommended by China\'s National Medical Products Administration. The prevalence of 18 high-risk HPV genotypes and their relationship with cervical lesions as well as vaccine efficacy were analyzed.
    RESULTS: A total of 2431 women were confirmed to have different types of high-risk HPV infections. The overall positive rate reached 15.05%(2431/16,150). The most prevalent high-risk HPV genotypes were HPV52, 16, 58, 53, and 51. The prevalence of high-risk HPV reached peak at age ≤ 20(20.95%) and age ≥ 61(20.56%). The most prevalent high-risk HPV genotypes were HPV16, 58, 18, 33 and 52 in cervical cancer cases, HPV16, 52, 58, 33 and 18 in CIN2/3 cases, and HPV52, 58, 16, 53 and 18 in CIN1 cases, respectively.
    CONCLUSIONS: HPV16, 58 and 18 are the most dangerous and carcinogenic genotypes in xianning, China. Conducting epidemiological investigations on high-risk HPV has significant clinical value in guiding HPV vaccination work.
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  • 文章类型: Journal Article
    隐孢子虫。是人类和动物中重要的食源性和水性病原体,引起人类腹泻和鸟类呼吸道和胃肠道疾病。然而,结头鹅隐孢子虫感染的报道有限.确定中国头鹅隐孢子虫的感染率和种类/基因型。共收集了3个地区的358份粪便样本。巢式PCR用于从粪便提取的DNA样品中扩增隐孢子虫SSUrRNA区域。我国柱头隐孢子虫总感染率为3.9%(14/358),阿坝(Ngawa)藏族和羌族自治州占4.2%(5/120),四川省,玛曲县7.6%(9/119),甘肃省,和0.0%(0/119)在草海,魏宁县,贵州省。各地区的患病率差异有统计学意义。所有阳性样品均被鉴定为隐孢子虫鹅基因型I(n=14)。这是我国首次对斑头鹅隐孢子虫的流行病学现状和优势种/基因型进行系统的调查,从而增强我们对野生候鸟隐孢子虫感染流行病学的了解。
    Cryptosporidium spp. is an important foodborne and waterborne pathogen in humans and animals, causing diarrhoea in humans and respiratory and gastrointestinal diseases in birds. However, reports of Cryptosporidium infection in bar-headed goose are limited. To determine the infection rate and species/genotypes of Cryptosporidium in bar-headed goose in China, a total of 358 fecal samples were collected from 3 regions. Nested PCR was used to amplify Cryptosporidium SSU rRNA regions from the fecal extracted-DNA samples. The total infection rate of Cryptosporidium in bar-headed in China was 3.9 % (14/358), with 4.2 % (5/120) in Aba (Ngawa) Tibetan and Qiang Autonomous Prefect, Sichuan province, 7.6 % (9/119) in Maqu county, Gansu province, and 0.0 % (0/119) in Caohai, Wei ning county, Guizhou province. The differences in prevalence rate by region were statistically significant. All positive samples were identified as Cryptosporidium goose genotype I (n = 14). This is the first systematic investigation of the epidemiological status and dominant species/genotypes of Cryptosporidium in bar-headed goose in China, thereby enhancing our understanding of the epidemiology of Cryptosporidium infection in wild migratory birds.
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  • 文章类型: Journal Article
    肠道病毒(EV)包括许多不同类型,是无菌性脑膜炎的最常见原因。病毒如何影响大脑,包括类型之间的潜在差异在很大程度上是未知的。测量CSF中的生物标志物是估计由CNS感染引起的脑损伤的工具。
    对38例急性神经系统表现和CSF-EVRNA(n=37)或血清IgM(n=1)阳性患者的样本进行了回顾性研究。通过测序对17个样品中的EV进行分型。生物标志物神经丝光(NFL),胶质纤维酸性蛋白(GFAP),S-100B蛋白,测量淀粉样蛋白β(Aβ)40和Aβ42,总tau(T-tau)和磷酸化tau(P-tau),并与对照组(n=19)的数据进行比较。
    与对照组相比,EV脑膜炎患者(n=38)的CSF中GFAP(p≤0.1)和NFL(p≤0.1)水平均未升高。然而,我们发现Aβ42水平降低(p<0.001),Aβ40(p<0.001),T-tau(p≥0.01),P-tau(p≤0.001)和S-100B(p≤0.001)。E30(n=9)和CVB5(n=6)是最常见的EV类型,但是在感染病毒类型之间没有发现生物标志物水平或其他临床参数的差异。随访超过一个月的7名患者报告仍有认知障碍,尽管没有观察到与生物标志物浓度的相关性。
    EV脑膜炎患者没有神经元或星形胶质细胞损伤的迹象。然而,显示Aβ40,Aβ42,P-tau和T-tau的浓度降低,一个未知重要性的发现。急性疾病后发生认知障碍,但是只有有限数量的患者被分析,无法得出与生物标志物水平或EV类型有任何关联的结论.
    UNASSIGNED: Enteroviruses (EV) comprises many different types and are the most common cause of aseptic meningitis. How the virus affects the brain including potential differences between types are largely unknown. Measuring biomarkers in CSF is a tool to estimate brain damage caused by CNS infections.
    UNASSIGNED: A retrospective study was performed in samples from 38 patients with acute neurological manifestations and positive CSF-EV RNA (n = 37) or serum-IgM (n = 1). The EV in 17 samples were typed by sequencing. The biomarkers neurofilament light (NFL), glial fibrillary acidic protein (GFAP), S-100B protein, amyloid-β (Aβ) 40 and Aβ42, total-tau (T-tau) and phosphorylated tau (P-tau) were measured and compared with data derived from a control group (n = 19).
    UNASSIGNED: There were no increased levels of GFAP (p ≤ 0.1) nor NFL (p ≤ 0.1) in the CSF of patients with EV meningitis (n = 38) compared with controls. However, we found decreased levels of Aβ42 (p < 0.001), Aβ40 (p < 0.001), T-tau (p ≥ 0.01), P-tau (p ≤ 0.001) and S-100B (p ≤ 0.001). E30 (n = 9) and CVB5 (n = 6) were the most frequent EV-types identified, but no differences in biomarker levels or other clinical parameters were found between the infecting virus type. Seven patients who were followed for longer than one month reported remaining cognitive impairment, although no correlations with biomarker concentrations were observed.
    UNASSIGNED: There are no indication of neuronal or astrocyte damage in patients with EV meningitis. Yet, decreased concentrations of Aβ40, Aβ42, P-tau and T-tau were shown, a finding of unknown importance. Cognitive impairment after acute disease occurs, but with only a limited number of patients analysed, no conclusion can be drawn concerning any association with biomarker levels or EV types.
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  • 文章类型: Journal Article
    目的:本研究的目的是评估单核苷酸多态性(SNP)(EGR3rs1996147;EGR4rs3813226,rs6747506;ERBB3rs2292238;和ERBB4rs707284,rs7560730)与中国人群精神分裂症(SZ)风险之间的关系。材料和方法:我们进行了病例对照研究,包括248例SZ患者和236例年龄和性别相匹配的健康对照。Mass-array平台用于检测SNP的所有基因型。结果:结果显示,EGR3rs1996147AA基因型与SZ风险降低相关(AA与GG:调整后的OR=0.43,95%CI:0.18-1.02,p=0.06)。然而,其他SNPs与整体SZ风险之间未发现显著相关性.亚组分析也未能显示所有SNP与SZ风险之间的任何显著关联。结论:总之,这项研究表明,EGR3rs1996147AA基因型与SZ的临界风险相关。
    Objective: The purpose of this study was to evaluate the association between the single nucleotide polymorphisms (SNPs) (EGR3 rs1996147; EGR4 rs3813226, rs6747506; ERBB3 rs2292238; and ERBB4 rs707284, rs7560730) and the risk of schizophrenia (SZ) in a Chinese population. Materials and Methods: We conducted a case-control study, including 248 patients with SZ and 236 healthy controls matched for age and sex. The Mass-array platform was used to detect all the genotypes of the SNPs. Results: The results revealed that the EGR3 rs1996147 AA genotype was associated with borderline decreased SZ risk (AA vs. GG: adjusted OR = 0.43, 95% CI: 0.18-1.02, p = 0.06). However, no significant correlation was found between the other SNPs and overall SZ risk. Subgroup analysis also failed to show any significant association between all SNPs and the risk of SZ. Conclusion: In summary, this study revealed that the EGR3 rs1996147 AA genotype was associated with a borderline risk for SZ.
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  • 文章类型: Journal Article
    鹰嘴豆孢子虫棉铃虫(Hübner)是鹰嘴豆作物的重要害虫,造成巨大的全球损失。
    在旁遮普邦中部进行了现场实验,巴基斯坦,在两个种植季节(2020-2021年和2021-2022年)中,研究生物和非生物因素对9个卡布鹰嘴豆基因型的豆荚bore种群动态和侵染的影响。这两年的庄稼都是在11月播种的,行到行和植物到植物的距离为30和15厘米,分别,遵循随机完整区组设计(RCBD)。
    结果显示测试基因型之间的毛状体密度存在显着差异,吊舱壁厚,和叶片叶绿素含量。在2020-2021年和2021-2022年期间,Noor-2019基因型的幼虫种群(每株植物0.85和1.10幼虫)和伤害百分比(10.65%和14.25%)明显减少。Pod毛状体密度,吊舱壁厚,叶片的叶绿素含量在供试基因型之间也显示出显着差异。梭状毛密度和梭壁厚度与幼虫侵染呈负相关,叶片叶绿素含量呈正相关。此外,幼虫种群与最低和最高温度呈正相关,而相对湿度与幼虫种群呈负相关。研究结果探索天敌作为潜在的生物防治剂,并减少对化学农药的依赖。
    UNASSIGNED: The chickpea pod borer Helicoverpa armigera (Hübner) is a significant insect pest of chickpea crops, causing substantial global losses.
    UNASSIGNED: Field experiments were conducted in Central Punjab, Pakistan, to investigate the impact of biotic and abiotic factors on pod borer population dynamics and infestation in nine kabuli chickpea genotypes during two cropping seasons (2020-2021 and 2021-2022). The crops were sown in November in both years, with row-to-row and plant-to-plant distances of 30 and 15 cm, respectively, following a randomized complete block design (RCBD).
    UNASSIGNED: Results showed a significant difference among the tested genotypes in trichome density, pod wall thickness, and leaf chlorophyll contents. Significantly lower larval population (0.85 and 1.10 larvae per plant) and percent damage (10.65% and 14.25%) were observed in genotype Noor-2019 during 2020-2021 and 2021-2022, respectively. Pod trichome density, pod wall thickness, and chlorophyll content of leaves also showed significant variation among the tested genotypes. Pod trichome density and pod wall thickness correlated negatively with larval infestation, while chlorophyll content in leaves showed a positive correlation. Additionally, the larval population positively correlated with minimum and maximum temperatures, while relative humidity negatively correlated with the larval population. Study results explore natural enemies as potential biological control agents and reduce reliance on chemical pesticides.
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  • 文章类型: Journal Article
    背景:肠孢子虫是一种广泛分布在动物和人类中的人畜共患病原体。它可以引起腹泻,甚至在免疫功能低下的宿主中死亡。在E.bieneusi中已经鉴定了大约800种内部转录间隔区(ITS)基因型。饲养的狐狸和浣熊犬与人类密切相关,可能是已知具有人畜共患潜力的E.bieneusi的水库。然而,在河南和河北省的狐狸和浣熊犬中,关于E.bieneusi基因型鉴定和流行病学调查的研究很少。因此,本研究调查了河南和河北两省养殖狐狸和浣熊的E.bieneusi感染率和基因型。
    结果:共从狐狸和浣熊犬收集了704和884个粪便标本,分别。基于核糖体RNA(rRNA)的ITS进行巢式PCR,然后进行多位点序列分型(MLST)分析基因型。结果表明,狐狸犬和浣熊犬的感染率分别为18.32%和5.54%,分别。具有人畜共患潜力的十个E.bieneusi基因型(NCF2,NCF3,D,EbpC,CHN-DC1,SCF2,CHN-F1,IV型,在狐狸和浣熊犬中鉴定出BEB4和BEB6)。从狐狸和浣熊犬中鉴定出总共178个ITS阳性DNA样本,然后对这些样本进行MLST分析。在MLST分析中,在小/微卫星基因座MS1、MS3、MS4和MS7分别鉴定了12、2、7和8个基因型。使用ClustalX2.1软件产生总共14个多基因座基因型。总的来说,本研究评估了河南和河北省狐狸和浣熊犬中E.bieneusi的感染,并调查了E.bieneusi在狐狸和浣熊犬中的人畜共患潜力。
    结论:这些发现扩展了中国寄主的地理分布信息,有助于防止狐狸和浣熊犬感染具有人畜共患病潜力的寄主。
    BACKGROUND: Enterocytozoon bieneusi is a zoonotic pathogen widely distributed in animals and humans. It can cause diarrhea and even death in immunocompromised hosts. Approximately 800 internal transcribed spacer (ITS) genotypes have been identified in E. bieneusi. Farmed foxes and raccoon dogs are closely associated to humans and might be the reservoir of E. bieneusi which is known to have zoonotic potential. However, there are only a few studies about E. bieneusi genotype identification and epidemiological survey in foxes and raccoon dogs in Henan and Hebei province. Thus, the present study investigated the infection rates and genotypes of E. bieneusi in farmed foxes and raccoon dogs in the Henan and Hebei provinces.
    RESULTS: A total of 704 and 884 fecal specimens were collected from foxes and raccoon dogs, respectively. Nested PCR was conducted based on ITS of ribosomal RNA (rRNA), and then multilocus sequence typing (MLST) was conducted to analyze the genotypes. The result showed that infection rates of E. bieneusi in foxes and raccoon dogs were 18.32% and 5.54%, respectively. Ten E. bieneusi genotypes with zoonotic potential (NCF2, NCF3, D, EbpC, CHN-DC1, SCF2, CHN-F1, Type IV, BEB4, and BEB6) were identified in foxes and raccoon dogs. Totally 178 ITS-positive DNA specimens were identified from foxes and raccoon dogs and these specimens were then subjected to MLST analysis. In the MLST analysis, 12, 2, 7 and 8 genotypes were identified in at the mini-/ micro-satellite loci MS1, MS3, MS4 and MS7, respectively. A total of 14 multilocus genotypes were generated using ClustalX 2.1 software. Overall, the present study evaluated the infection of E. bieneusi in foxes and raccoon dogs in the Henan and Hebei province, and investigated the zoonotic potential of the E. bieneusi in foxes and raccoon dogs.
    CONCLUSIONS: These findings expand the geographic distribution information of E. bieneusi\' host in China and was helpful in preventing against the infection of E. bieneusi with zoonotic potential in foxes and raccoon dogs.
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  • 文章类型: Journal Article
    背景:宫颈癌与人乳头瘤病毒(HPV)感染密切相关。在这项回顾性研究中,我们分析了2019-2021年在南京市第一医院进行HPV检测的绝经后妇女的资料.
    方法:我们回顾性分析了14608名年龄在45-90岁之间的绝经后妇女的资料。2019年1月至2021年12月在南京第一医院接受HPV检查。所有参与者都接受了23种HPV基因型的检测。我们随后分析了感染率,并使用卡方检验评估了HPV的分布。
    结果:我们的结果表明,南京地区绝经后妇女的HPV感染率,中国为22.36%。从年龄组来看,感染率为19.54%,24.30%,26.58%,在≤50、51-60、61-70和≥71岁的人群中,为14.99%,分别。最常见的HPV亚型是HPV52(22.1-3%),HPV58(15.86%),HPV53(14.17%),HPV16(12.61%),和HPV81(11.66%),按这个顺序。单一HPV感染率为14.23%,多基因型感染率为8.14%(1189/14,608)。
    结论:这项研究表明,在南京,中国,不同年龄段的绝经后妇女可能有不同的HPV感染率,最常见的类型是HPV52、HPV58、HPV53、HPV16和HPV81。这些发现强调了了解特定人群中HPV感染流行病学的重要性。比如南京的绝经后妇女,中国。研究结果可以为医疗保健专业人员和政策制定者提供有价值的信息,以制定有针对性的预防和筛查策略,以减轻该人群中HPV相关疾病的负担。
    Cervical cancer is strongly associated with human papillomavirus (HPV) infection. In this retrospective study, we analyzed the data of postmenopausal women who were tested for HPV in Nanjing First Hospital from 2019 to 2021.
    We retrospectively analyzed the data of 14,608 postmenopausal women aged 45-90 years, who underwent HPV examination in Nanjing First Hospital between January 2019 and December 2021. All participants were tested for 23 HPV genotypes. We subsequently analyzed the infection rate and evaluated the distribution of HPV using the chi-square test.
    Our results showed that the HPV infection rate in postmenopausal women in Nanjing, China was 22.36%. In terms of age group, the infection rate was 19.54%, 24.30%, 26.58%, and 14.99% in those aged ≤ 50, 51-60, 61-70, and ≥ 71 years, respectively. The most common HPV subtypes were HPV52 (22.1 3%), HPV58 (15.86%), HPV53 (14.17%), HPV16 (12.61%), and HPV81 (11.66%), in that order. The single-HPV infection rate was 14.23%, and the multiple-genotype infection rate was 8.14% (1189/14,608).
    This study showed that in Nanjing, China, the different age groups of post-menopausal women could have different rates of HPV infection, and the most common types were HPV52, HPV58, HPV53, HPV16 and HPV81. These findings highlighted the importance of understanding the epidemiology of HPV infection in specific populations, such as postmenopausal women in Nanjing, China. The results could provide valuable information for healthcare professionals and policymakers to develop targeted prevention and screening strategies for reducing the burden of HPV-related diseases in this population.
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  • 文章类型: Journal Article
    丙型肝炎,由丙型肝炎病毒(HCV)引起,是病毒性肝炎的第二常见形式。HCV基因型的地理分布可能相当复杂,这使得它具有挑战性,以确定在特定地区最普遍的基因型。
    为了解决这个问题,我们进行了一项综述,以确定各个省份和整个巴基斯坦的HCV基因型患病率.关于患病率的科学文献,分布,基因分型,和HCV的流行病学是从1996-2020年发表的文章中收集的。
    基因型1占患者的5.1%,其主要亚型为1a,占4.38%。它的其他亚型的频率,1b和1c,分别为1.0%和0.31%。基因型2的频率为2.66%,在2.11%的患者中,分布最广泛的亚型是2a。它的其他亚型,2b和2c,频率分别为0.17%和0.36%。所有分离株中最普遍的基因型是3(65.35%),最常见的亚型是3a(55.15%),其次是3b(7.18%)。基因型4、5和6的流行在巴基斯坦很少,频率为0.97%,0.08%,和0.32%。未分型和混合基因型的患病率分别为21.34%和3.53%。估计基因型被证明是帮助抗病毒治疗的持续时间和选择的有效方法。不同的HCV基因型可以在它们对特定抗病毒治疗的应答中表现出变化。不同的基因型可能有不同的自然史,包括疾病进展和严重程度的变化。一些基因型可能导致更快的肝脏损伤,而其他人进展更慢。
    这些信息可以指导筛查和测试策略,帮助识别发生严重并发症风险较高的个体。研究HCV基因型在人群中的分布可以为病毒的传播动态提供有价值的见解。
    UNASSIGNED: Hepatitis C, caused by the Hepatitis C Virus (HCV), is the second most common form of viral hepatitis. The geographical distribution of HCV genotypes can be quite complex, making it challenging to ascertain the most prevalent genotype in a specific area.
    UNASSIGNED: To address this, a review was conducted to determine the prevalence of HCV genotypes across various provinces and as a whole in Pakistan. The scientific literature regarding the prevalence, distribution, genotyping, and epidemiology of HCV was gathered from published articles spanning the years 1996-2020.
    UNASSIGNED: Genotype 1 accounted for 5.1% of the patients, with its predominant subtype being 1a at 4.38%. The frequencies of its other subtypes, 1b and 1c, were observed to be 1.0% and 0.31% respectively. Genotype 2 had a frequency of 2.66%, with the most widely distributed subtype being 2a at 2.11% of the patients. Its other subtypes, 2b and 2c, had frequencies of 0.17% and 0.36% respectively. The most prevalent genotype among all isolates was 3 (65.35%), with the most frequent subtype being 3a (55.15%), followed by 3b (7.18%). The prevalence of genotypes 4, 5, and 6 were scarce in Pakistan, with frequencies of 0.97%, 0.08%, and 0.32% respectively. The prevalence of untypeable and mixed genotypes was 21.34% and 3.53% respectively. Estimating genotypes proves to be a productive method in assisting with the duration and selection of antiviral treatment. Different HCV genotypes can exhibit variations in their response to specific antiviral treatments. Different genotypes may have distinct natural histories, including variations in disease progression and severity. Some genotypes may lead to more rapid liver damage, while others progress more slowly.
    UNASSIGNED: This information can guide screening and testing strategies, helping to identify individuals at higher risk of developing severe complications. Studying the distribution of HCV genotypes in a population can provide valuable insights into the transmission dynamics of the virus.
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