RESUMO
BACKGROUND: Functional constipation (FC) is a common bowel disorder that prevails worldwide. In China, although a heterogeneous prevalence of constipation is expected, it is currently not demonstrated. In this study, we aimed to evaluate the prevalence and related risk factors of FC in the Chinese population, according to the Rome criteria. METHODS: We searched the PubMed, the Embase, the Cochrane Library, the Web of Science, the China National Knowledge Infrastructure (CNKI), the Wanfang data knowledge service platform, the VIP information resource integration service platform, and the Chinese Biomedical Literature Service System (SinoMed) databases from the inception of database to July 2021. Population-based cross-section studies that enrolled adults with FC, diagnosed by the Rome criteria, were deemed eligible. We summarized the overall prevalence and detected the subgroup effect per the Rome I, Rome II, Rome III, and Rome IV criteria. We used the generalized linear mixed model (GLMM) with a random-effect intercept to pool the prevalence and performed pairwise meta-analyses for prevalence comparisons by risk factors. RESULTS: We identified 3,213 records through our database search, and 39 studies from China, comprising 1,240,79 participants, met the eligibility criteria for our study. The pooled overall prevalence of FC using the Rome criteria was 8.5% in China. Heterogeneous prevalence was detected within the Rome criteria (Rome II: 10.6%, 95% CI: 7.2-15.4; Rome III: 6.5%, 95% CI: 3.4-12.0; Rome IV: 8.1%, 95% CI: 5.6-11.8). The prevalence increased between 1991 and 2020 (from 5.5% with 95% CI: 3.6-8.2 between 1991 and 2000 to 10.9% with 95% CI: 5.5-20.4 between 2011 and 2020). Higher prevalence was found in women [odds ratio (OR) = 1.53, 95% CI: 1.31-1.78] and the elderly (≥70 years vs. ≤ 29 years: OR = 3.38, 95% CI: 2.16-5.30) than in men and the younger population. A high-fiber diet was associated with lower prevalence (OR = 0.33, 95% CI: 0.15-0.75), whereas irregular bowel habit and inactivity were associated with higher prevalence (OR = 3.64, 95% CI: 2.64-5.03; OR = 1.97, 95% CI: 1.14-3.43). Unhealthy mental states, such as anxiety and depression, and poor sleep quality led to high prevalence (OR = 3.16, 95%C I: 1.96-5.11; OR = 2.74, 95% CI: 1.76-4.26; OR = 2.14, 95% CI: 1.69-2.72, respectively). CONCLUSION: Various types of FC prevail in China based on the different Rome criteria, personal characteristics, and habits. The prevalence also increased over the past three decades. The FC should be included under the primary care setting with uniform diagnosis criteria in China. SYSTEMATIC REVIEW REGISTRATION: http://www.crd.york.ac.uk/PROSPERO, CRD42021277172.
RESUMO
OBJECTIVE: To investigate the role of Shenling Baizhu powder as an adjuvant therapy on the serum TH1 of elderly patients with ulcerative colitis complicated by bloody purulent stool. METHODS: A total of 70 elderly patients with ulcerative colitis complicated by bloody purulent stool presenting to our hospital from June 2018 to October 2019 were enrolled and equally randomized. Patients were administered mesalazine enteric-coated tablets in the control group, and patients were additionally treated with Shenling Baizhu powder. The main clinical symptom scores, the relief of bloody purulent stool symptoms, and the serum TH1 levels before and after treatment as well as the clinical efficacy were compared in the two groups, and the ROC curve was plotted to analyze the value of serum TH1 cytokine in predicting disease recurrence. RESULTS: After treatment, the scores in the two groups were decreased significantly, and the decrease in the study group was significant (P < 0.05). The total effective rate in the study group (88.57%) was significantly higher than that of the control group (68.57%), and the response rate after treatment in the study group (85.71%) was significantly higher than that of the control group (62.86%). In the two groups, serum IL-2 and IFN-γ levels were decreased significantly before and after treatment, but the decrease in the study group was significant (P < 0.05). ROC analysis showed that the area under the curve (AUC) of IL-2 was 0.797, the maximum Jordan index was 0.573, the sensitivity was 61.10%, and the specificity was 96.20%. The AUC of IFN-γ was 0.794, the maximum Jordan index was 0.453, the sensitivity was 55.60%, and the specificity was 72.50%. CONCLUSION: Shenling Baizhu powder as an adjuvant therapy is a promising option for elderly patients with ulcerative colitis complicated by bloody purulent stool.
RESUMO
Porous silica anti-reflection (AR) films are of importance in solar cells' photon harvest. However, the usual utilized method to fabricate AR films is the two-step method since the formation of porous silica NPs (first step) and silica coating sol (second step) always require chemical systems at distinct pH values. To reduce the complexity of the process, we choose cationic emulsion as an approach to produce the porosity and propose a convenient one-step route to get high-performance antireflective films. A single layer SiO2 anti-reflective (AR) film with high optical transmittance up to 97.5% at 740 nm was fabricated from composite sol that was made from cationic emulsion nanolatex and tetraethylorthosilicate under acid catalysis condition. After calcination, the transmittance of AR coated glasses still held the transmittance of 96% at 550 nm. Composited with SiO2, Al2O3, or TiO2 sol binders, the transmittance of AR coated glasses could be recovered as high as 97.9% at 650 nm and the pencil hardness was further strengthened up to 6H. The composite sol can keep stable at least one month at ambient temperature without any visible precipitation. Therefore, the proposed method is promising for developing high-performance AR films effectively and economically.
