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Background: Essential hypertension is one of the risk factors of cardiovascular and cerebrovascular diseases, which can cause target organ damage such as heart, brain and kidney, and has extremely high disability rate and death rate. With the development of economy and society, the prevalence rate of hypertension in China has increased rapidly from 9.8% in the 1980s to over 30% in the 21st century. According to the data published in "China Cardiovascular Disease Report 2018," China currently has 245 million hypertension patients. Comprehensive prevention and treatment of hypertension has become one of the major public health problems in China. The clinical practice and theoretical innovation of traditional Chinese medicine in the prevention and treatment of hypertension have been carried out for decades. Relevant literature points out that Tianma Gouteng Decoction combined with Qiju Dihuang Pill has ideal effect in the treatment of primary hypertension. However, most of the literatures are small sample studies, with uneven quality and clinical evidence, and lack of evidence-based medical evidence for clinical efficacy. Therefore, this study makes further meta-analysis of Tianma Gouteng Decoction combined with Qiju Dihuang Pill in the treatment of primary hypertension, with a view to providing evidence-based medical evidence for the treatment of primary hypertension., Methods: We will search 3 foreign electronic databases (Cochrane Library, Embase, PubMed) and 4 Chinese electronic databases (China National Knowledge Infrastructure, WangFang Database, Chinese Biomedical Literature Database, and Chinese Scientific Journal Database) to collect potential systematic reviews from their inceptions to February 2020. The language of publication is limited to Chinese or English. First, the quality of randomized controlled trials documents included in this study was evaluated by using the improved Jadad scoring scale. Then, the 2 researchers conducted the evaluation independently according to Cochrane bias risk tools. The evidence level of the results will be evaluated by using the recommended evaluation, development and evaluation grading of recommendations assessment, development, and evaluation method. Statistical analysis will be conducted using Revman 5.3., Results: The results of this study will be published in a peer-reviewed journal., Conclusions: The conclusion of this study will provide evidence for the efficacy of Tianma Gouteng Decoction combined with Qiju Dihuang Pills in the treatment of primary hypertension due to the efficacy of western medicine alone in treating primary hypertension., Registration Number Prospero: INPLASY202050088.

Essential hypertension (EH), a complex disease, is an important worldwide public-health challenge and is considered to be caused by the interaction of genetic determinants and environmental factors. [ABSTRACT FROM AUTHOR]

Several recent studies have linked human chromosome 1p to essential hypertension (EH) or blood pressure (BP) levels. In an independent population of 148 hypertensive families from China we tested these findings. Thirty highly informative microsatellite markers spanning about 284 cM were genotyped. Qualitative linkage analysis was conducted using non-parametric linkage analysis implemented within the GENEHUNTER 2.0 software, whereas quantitative analysis was performed with the variance-component method integrated in the S.O.L.A.R. 1.7.4. software with an additional Haseman-Elston method using the SAGE/SIBPAL2 program. We observed suggestive linkage between D1S2890 (1p31, 80.9 cM) and hypertension using the multipoint non-parametric linkage analysis (NPL= 2.19, P= 0.01). In the quantitative analysis we didn't observe a significant excess of identity-by-descent allele sharing between the systolic blood pressure levels and the markers. However, the D1S207 microsatellite marker (1p21) which is located about 107 cM from the telomere of 1p showed weak linkage evidence with the diastolic blood pressure levels (LOD= 1.42). These findings suggest linkage of 1p31 with essential hypertension in the ethnic Chinese, and provide a potential clue for future studies involving candidate genes for hypertension. [ABSTRACT FROM AUTHOR]