Background:Several epidemiological studies had been carried out in different population cohorts to estimate the relationship between the shortened telomere length and stroke. However, the results still remained dispute. Consequently, we conducted this meta-analysis to estimate the relationship between them.Methods:PubMed, EMBASE, and Web of Science were systematically searched for related articles to evaluate the association between “stroke” and “telomere length. STATA 12.0 software was used to perform the meta-analysis. The Cochran Q test and inconsistency index (I2) were used to assess the heterogeneity. Begg funnel plot and Egger test were used to assess publication bias.Results:The meta-analysis was composed of 11 studies, consisting of 25,340 participants. We found a significant relationship between shortened telomere length and stroke (OR: 1.50, 95% CI: 1.13–2.0; P = .005); however, in the prospective and retrospective study subgroup, we did not find a statistical significant relationship between shortened telomere length and stroke (the prospective subgroup: OR: 1.41, 95% CI: 1–1.98; P = .051) (the retrospective subgroup: OR: 1.89, 95% CI: 0.96–3.72; P = .067).

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Background Coronary artery disease (CAD) is one of the most common types of the cardiovascular disease. Previous pilot trials have suggested that Traditional Chinese Medicine (TCM) has brought clinical benefits for patients with CAD. We will conduct this trial to determine the efficacy and safety of Shenzhu Guanxin Recipe Granules (SGR) for the treatment of patients with CAD. Methods This randomized controlled trial recruited 190 patients who were diagnosed with CAD by clinical manifestation and examination and in which coronary computed tomography angiography (CCTA) showed 50–70% stenosis, with soft or mixed plaque types. The included participants were randomly assigned to the case group and control group using a 1:1 allocation ratio; patients in the case group received SGR and usual care, and those in the control group received placebo (6 g/day for 6 months) and usual care. The endpoint of the study included Calcium Coverage Score (CCS), C-reactive protein (CRP) level, and the levels of blood lipids, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and ATP-binding membrane cassette transporter A1 (ABCA1) were calculated before recruiting and at the sixth month. The indicators were Seattle Angina Questionnaire (SAQ) and TCM Syndrome Questionnaire scores at 0, 3, and 6 months. Discussion This clinical trial may provide reliable evidence regarding the clinical effectiveness and safety of SGR therapy for patients with CAD diagnosed by clinical manifestation and examination, in which CCTA showed 50–70% stenosis, with soft or mixed plaque types. Trial registration ClinicalTrials.gov, ID: ChiCTR1900020501 . The trial was registered on 25 December 2018. Electronic supplementary material The online version of this article (10.1186/s13063-019-3629-4) contains supplementary material, which is available to authorized users.

Background Coronary artery disease (CAD) is one of the most common types of the cardiovascular diseases, previous pilot trials suggested that Traditional Chinese Medicine brought clinical benefits for patients with CAD. We will conduct this trial to determine the efficacy and safety of Shenzhu Guanxin Recipe Granules for treatment of patients with coronary artery disease. Patients and Methods This randomized controlled trial recruited 194 patients who were diagnosed CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque. The included participants were randomly assigned to the case group and control group with a 1:1 allocation ratio; patients in the case group received SGR and usual care, and those in the control group received placebo (6 g/day for 6 months) and usual care. The endpoint of the study included calcium coverage score (CCS), C-Reactive protein (CRP), and the levels of blood lipids, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and ATP-binding membrane cassette transporter A1 (ABCA1) were calculated before recruiting at6th month. The indicators were Seattle Angina Questionnaire (SAQ) and TCM syndrome questionnaire scores at 0th, 3rd, and 6th months. Discussion This clinical trial may provide a reliable evidence regarding the clinical effectiveness and safety of SGR therapy for patients with CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque.

Background Coronary artery disease (CAD) is one of the most common types of the cardiovascular diseases, previous pilot trials suggested that Traditional Chinese Medicine brought clinical benefits for patients with CAD. We will conduct this trial to determine the efficacy and safety of Shenzhu Guanxin Recipe Granules for treatment of patients with coronary artery disease. Patients and Methods This randomized controlled trial recruited 194 patients who were diagnosed CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque. The included participants were randomly assigned to the case group and control group with a 1:1 allocation ratio; patients in the case group received SGR and usual care, and those in the control group received placebo (6 g/day for 6 months) and usual care. The endpoint of the study included calcium coverage score (CCS), C-Reactive protein (CRP), and the levels of blood lipids, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and ATP-binding membrane cassette transporter A1 (ABCA1) were calculated before recruiting at6th month. The indicators were Seattle Angina Questionnaire (SAQ) and TCM syndrome questionnaire scores at 0th, 3rd, and 6th months. Discussion This clinical trial may provide a reliable evidence regarding the clinical effectiveness and safety of SGR therapy for patients with CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque.

Background Coronary artery disease (CAD) is one of the most common types of the cardiovascular diseases, previous pilot trials suggested that Traditional Chinese Medicine brought clinical benefits for patients with CAD. We will conduct this trial to determine the efficacy and safety of Shenzhu Guanxin Recipe Granules for treatment of patients with coronary artery disease. Patients and Methods This randomized controlled trial recruited 190 patients who were diagnosed CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque. The included participants were randomly assigned to the case group and control group with a 1:1 allocation ratio; patients in the case group received SGR and usual care, and those in the control group received placebo (6 g/day for 6 months) and usual care. The endpoint of the study included calcium coverage score (CCS), C-Reactive protein (CRP), and the levels of blood lipids, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and ATP-binding membrane cassette transporter A1 (ABCA1) were calculated before recruiting at6th month. The indicators were Seattle Angina Questionnaire (SAQ) and TCM syndrome questionnaire scores at 0th, 3rd, and 6th months. Discussion This clinical trial may provide a reliable evidence regarding the clinical effectiveness and safety of SGR therapy for patients with CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque.

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Background Coronary artery disease (CAD) is one of the most common types of the cardiovascular diseases, previous pilot trials suggested that Traditional Chinese Medicine brought clinical benefits for patients with CAD. We will conduct this trial to determine the efficacy and safety of Shenzhu Guanxin Recipe Granules for treatment of patients with coronary artery disease. Patients and Methods This randomized controlled trial recruited 194 patients who were diagnosed CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque. The included participants were randomly assigned to the case group and control group with a 1:1 allocation ratio; patients in the case group received SGR and usual care, and those in the control group received placebo (6 g/day for 6 months) and usual care. The endpoint of the study included calcium coverage score (CCS), C-Reactive protein (CRP), and the levels of blood lipids, tumor necrosis factor-α (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and ATP-binding membrane cassette transporter A1 (ABCA1) were calculated before recruiting at6th month. The indicators were Seattle Angina Questionnaire (SAQ) and TCM syndrome questionnaire scores at 0th, 3rd, and 6th months. Discussion This clinical trial may provide a reliable evidence regarding the clinical effectiveness and safety of SGR therapy for patients with CAD by clinical manifestations and examinations, in which coronary computed tomography angiography (CCTA) showed 50-70% of stenosis, with soft or mixed plaque.