Role of Cytokines in Hepatitis E Virus Infection During Pregnancy
研究概览
详细说明
The study will include pregnant women with acute viral hepatitis and fulminant hepatic failure (jaundice). The women with FHF will be recruited from the medical wards and antenatal wards as all such patients are routinely admitted in the hospital.
The pregnant women with acute viral hepatitis will be recruited either from antenatal clinic and medical outpatient, or from the medical and antenatal wards because pregnant women with AVH are admitted if they have serum bilirubin levels > 15- 20 mg / dl, persistently high bilirubin levels for more than 2-3 weeks, abnormal prothrombin time, evidence of progression of the disease, need parenteral therapy (because of excessive vomiting).
The enrolled subjects will be evaluated on the basis of a pre-designed and pre-tested proforma with respect to history and clinical examination, obstetrics examination and ultrasonography. Ten ml venous blood sample will be drawn from the patient at the time of enrollment detection of hepatotropic viruses (Various serological markers of hepatitis will be done which includes: IgM anti-HAV, HBsAg, IgM anti-HBc, HBeAg, anti-HCV Ab and IgM anti-HEV would be done using commercially available ELISA kits and Extraction of HEV-RNA from serum will be done) & levels of cytokines (IL-6, TGF-beta, IFN-g and TNF-α). All the subjects will be followed- up till delivery. The promoter region of cytokine gene will be amplified by PCR in appropriate reaction conditions using suitable sets of primers. PCR product will be used for studying the polymorphisms by restriction fragment length polymorphism.
The control group would comprise of age and POG matched healthy asymptomatic pregnant women
Follow up
All participants will be followed up till delivery for obstetrical complications, medical complications and pregnancy outcome.
研究类型
注册 (实际的)
联系人和位置
学习地点
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Delhi
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New Delhi、Delhi、印度、110002
- Dr. Ashok Kumar
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Diagnostic criteria of acute viral hepatitis - Patients having acute self-limited disease and a serum aspartate aminotransferase elevation of at least 5 fold or clinical jaundice or both.
- Diagnostic criteria of acute liver failure - When after a typical acute onset, the patient becomes deeply jaundiced and goes into hepatic encephalopathy within 4 weeks of the onset of disease with no past history of chronic liver disease.
- Diagnostic criteria of Hepatitis E infection - The serum sample showing HEV IgM positivity and/or HEV-RNA positivity would be considered as HEV infected cases.
Exclusion Criteria:
1. Patients with co-infection with other hepatitis virus. 2. Patients with any other associated diseases. 3. Patients with history of pre-existing liver disease.
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学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
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Hepatitis-E, Pregnant & Non-pregnant
Pregnant,Acute Viral Hepatitis, Fulminant Hepatic Failure
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研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
---|---|
To correlate the levels of cytokines and its genes polymorphisms with the severity of hepatitis in HEV and non-HEV pregnant women.
大体时间:3 years
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3 years
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次要结果测量
结果测量 |
大体时间 |
---|---|
To correlate the outcome of pregnancy with the levels of maternal cytokines and its genes polymorphisms.
大体时间:3 years
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3 years
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合作者和调查者
调查人员
- 首席研究员:Dr. Ashok Kumar, MD、Maulana Azad Medical College, New Delhi-110002
出版物和有用的链接
一般刊物
- Dahiya M, Kumar A, Kar P, Gupta RK, Kumar A. Acute viral hepatitis in third trimester of pregnancy. Indian J Gastroenterol. 2005 May-Jun;24(3):128-9. No abstract available.
- Beniwal M, Kumar A, Kar P, Jilani N, Sharma JB. Prevalence and severity of acute viral hepatitis and fulminant hepatitis during pregnancy: a prospective study from north India. Indian J Med Microbiol. 2003 Jul-Sep;21(3):184-5.
- Hussaini SH, Skidmore SJ, Richardson P, Sherratt LM, Cooper BT, O'Grady JG. Severe hepatitis E infection during pregnancy. J Viral Hepat. 1997 Jan;4(1):51-4. doi: 10.1046/j.1365-2893.1997.00123.x.
- Navaneethan U, Al Mohajer M, Shata MT. Hepatitis E and pregnancy: understanding the pathogenesis. Liver Int. 2008 Nov;28(9):1190-9. doi: 10.1111/j.1478-3231.2008.01840.x. Epub 2008 Jul 25.
- Barrett S, Collins M, Kenny C, Ryan E, Keane CO, Crowe J. Polymorphisms in tumour necrosis factor-alpha, transforming growth factor-beta, interleukin-10, interleukin-6, interferon-gamma, and outcome of hepatitis C virus infection. J Med Virol. 2003 Oct;71(2):212-8. doi: 10.1002/jmv.10472.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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