Objective To study the effect and feasibility of gradual oral diethylnitrosamine (DENA) induced liver cirrhotic model in rats under avoirdupois monitoring. Methods Fifty Wistar rats (6 weeks old) were divided into 3 groups: normal control group （n=10）, traditional DENA induction group (receiving traditional oral DENA treatment, n=20）, gradual DENA induction group (receiving gradual oral DENA treatment under avoirdupois monitoring, n=20). The weight, mortality and liver cirrhosis formation were observed. Results After 4 weeks of inducing cirrhosis, the weight of traditional DENA induction group 〔(234.9±27.1) g〕 was significantly lower than that of normal control group 〔(264.8±33.7) g, P＜0.05〕. After 8 weeks of inducing cirrhosis, the weight of traditional DENA induction group 〔(251.5±34.3) g〕 was significantly lower than that of normal control group 〔(303.2±49.4) g， P＜0.01〕 and gradual DENA induction group 〔(277.5±27.6) g， P＜0.05〕. However, the difference between normal control group and gradual DENA induction group was not remarkable (P＞0.05). The mortality in traditional DENA induction group (35%) was significantly higher than that in normal control group (0) and gradual DENA induction group (0)， P＜0.05. But the rate of cirrhosis formation both in traditional DENA induction group and gradual DENA induction group was 100%. Conclusion Oral DENA induced cirrhotic model in rats is a simple, reproducible and reliable technique. Gradual oral technique, in which DENA is given under avoirdupois monitoring, can improve rat’s security and reduce mortality.
ObjectiveTo analyze the latest epidemiological status of breast cancer in China, trends in morbidity and mortality from 1990 to 2019, and related prognostic risk factors.MethodsData on incidence and mortality of Chinese female breast cancer, their related age-standardized rates (ASRs) from 1990 to 2019, and attributable risk factors were obtained from the Global Burden of Disease (GBD) database, and data on disability-adjusted life years (DALYs) of 34 provinces in China were obtained from literature. Joinpoint regression analysis was used to analyze the trends of ASRs. The exposure levels of each attributable risk factor and the increased cancer burden were analyzed.ResultsThe incidence of breast cancer in Chinese females increased annually, from 17.07/100 000 in 1990 to 35.61/100 000 in 2019, while the mortality rate initially increased and decreased, and then exhibited an upward trend after 2016 and there was no obvious variation from 1990 (9.16/100 000) to 2019 (9.02/100 000). Among the 34 provinces of China, Shandong Province had the most serious breast cancer burden, while Macao Special Administrative Region had the lowest. Among the seven prognostic risk factors, high body mass index (BMI) contributed the most to the breast cancer burden and the exposure risk of a diet high in red meat had shown a significant increasing trend in the past 30 years. Therefore, the disease burden caused by a high red meat diet would be increasing.ConclusionsThe incidence rate of breast cancer in Chinese females is increasing. With the development of social economy and the change of people’s dietary habits, the breast cancer burden in China trends to become heavier and heavier. Therefore, it is necessary to conduct the "three early" prevention and treatment and advocate healthy and reasonable diet and living habits to reduce the burden of breast cancer to improve prognosis and quality of life.
Objective The effectiveness of systematic identification, description and evaluation of dietary sugar reduction strategies through the evidence diagram method. Methods The CNKI, WanFang Data, VIP, CBM, PubMed, Embase, Web of Science and Cochrane Library database were electronically searched to collect systematic reviews/meta-analysis on the effectiveness of dietary sugar reduction strategies from inception to November 10, 2022, AMSTAR-2 was used to evaluate the methodological quality of the included studies. Microsoft Excel 2019 was used to design a data extraction table to extract relevant key information. Bubble charts were used to comprehensively present information such as study population, intervention type, number of primary studies included, and outcome measures. Results A total of 11 papers were included, all of which were systematic reviews/meta-analysis. The studies included ten interventions. Among them, the research ending of behavioral changes strategies, healthy diet, sugar tax, material substitution, sugar label, and community intervention showed obvious effectiveness, while social cognitive models, sugar reduction guidelines, health literacy, and knowledge attitude behavior models had not shown a clear and beneficial effect, indicating that the intervention effect on the theoretical basis was very small. Conclusion The current evidence diagram shows that the sugar reduction strategy is effective, but there are also intervention conclusions that the effectiveness of the conclusion is not clear and intervention blank. And based on the theoretical dietary sugar reduction strategy, the validity evidence is relatively scarce. In the future, high quality research will still be required.
ObjectivesTo investigate the efficacy and safety of Hou Gu Mi Xi (HGMX) in patients with nonorganic gastrointestinal disorders (NOGD) from the aspect of dietary therapy.MethodsA randomized, double-blind, parallel, placebo-controlled trial was performed. Patients with NOGD and spleen qi deficiency (SQD) syndrome were randomly assigned into HGMX or placebo group. Each received 30 g/day HGMX or placebo for one year. The outcomes included SQD scores, body weight, body mass index (BMI), gastrin-17, and adverse events (AEs) between HGMX and placebo groups, or subgroups divided by NOGD type or helicobacter pylori (Hp) infection, at the 0th, 2nd, 4th, 8th, 26th, or 52nd weeks’ follow-up.ResultsThe reduction of SQD scale score was found in the HGMX group compared with the placebo group at 4th week (MD=−9.40, 95%CI −18.53 to −0.27, P=0.044), 8th week (MD=−10.07, 95%CI −19.66 to −0.48, P=0.04), 26th week (MD=−12.45, 95%CI −22.31 to −2.59, P=0.014) and 52th week (MD=−17.25, 95%CI −28.53 to −5.97, P=0.003), respectively. In the subgroup analyses, HGMX showed significant efficacy in Hp-negative patients with the detailed reduction of SQD scale score being (MD=−15.20, 95%CI −28.16 to −2.24, P=0.022), (MD=−17.91, 95%CI −31.22 to −4.59, P=0.009) and (MD=−20.38, 95%CI −35.43 to −5.32, P=0.008) at the 8th, 26th and 52nd week, respectively, and in patients with chronic nonatrophic gastritis with the detailed reduction being (MD=−13.02, 95%CI −24.75 to −1.29, P=0.03), (MD=−12.43, 95%CI −24.36 to −0.5, P=0.041) and (MD=−15.90, 95%CI −30.72 to −1.08, P=0.036) at the 2nd, 26th and 52nd week, respectively, and in patients with functional gastrointestinal disease with the reduction being (MD=−18.22, 95%CI −35.75 to −0.69, P=0.042) at the 52nd week. However, no significant efficacy was found in Hp-positive patient at any time. HGMX was not associated with changes in weight, BMI, or gastrin-17. No AEs were reported in the HGMX group.ConclusionsHGMX improves SQD symptoms in patients with NOGD, especially Hp-negative patients, and has a good safety profile.
Objective This study employs Mendelian randomization analysis to explore the causal relationship between dietary habits and systemic lupus erythematosus (SLE). MethodsWe obtained data from the MRC-IEU database on five dietary habits as instrumental variables for exposure "never eating dairy products" "never eating eggs or foods containing eggs" "never eating sugar or foods/drinks containing sugar" "never eating wheat products" and "I eat all of the above". Summary data related to SLE were retrieved from the MRC-IEU database for the discovery cohort (designated as MSLE) and from a Finnish database for the validation cohort (recorded as FSLE). Two-sample Mendelian randomization analyses were conducted using inverse variance weighting (IVW), MR-Egger, weighted median, Simple Mode, and Weighted Mode methods to investigate the causal relationship between dietary habits and SLE. The MR-Egger intercept test was performed to assess the presence of horizontal pleiotropy, while the leave-one-out method was employed to verify the stability of the results, with Cochran’s Q test and funnel plots used to evaluate heterogeneity. ResultsMendelian randomization analysis indicated that never eating wheat products increases the risk of developing SLE (IVW: P<0.05). In contrast, there was no significant causal relationship between the consumption of dairy products, eggs or foods containing eggs, or the consumption of all of the above with SLE (IVW: P>0.05). Additionally, there was no significant causal relationship between never sugar or foods/drinks containing sugar and MSLE (IVW: P=0.877), although a potential causal association with FSLE was suggested (IVW: P=0.016). The MR-Egger intercept test indicated no evidence of horizontal pleiotropy (P>0.05). ConclusionNever eating wheat products may be an independent risk factor for SLE. However, the causal relationship between never sugar or foods/drinks containing sugar and SLE remains indeterminate.
Objective To investigate the influence of preoperative enteral nutrition with dietary fiber on the nutritional status of patients with colon colostomy diaplasis, and discuss its safety. Methods Forty preoperative colon colostomy diaplasis patients from West China Hospital treated between September 2013 and June 2014 were randomly assigned into trial group and control group with 20 in each. The baseline of the two groups was the same (all P > 0.05). The trial group was given enteral nutrition with dietary fiber before operation for seven days, while control group was given homogenate diet with equal quantity of energy and nitrogen content for the same period of time. All patients were being tested for nutritional indexes on the day of admission and on the fifth day after surgery. Meanwhile, other indexes such as the first time of flatus and defecation, abdominal distension, bellyache, and other adverse reactions were recorded too. Results There was no statistical difference in nutritional indexes on the day of admission and on the fifth day after surgery between two groups (P > 0.05). Patients with dietary fiber had significantly higher incidence of abdominal distension than the control subjects (P < 0.05), but other adverse reactions had no statistical differences between the two groups (P > 0.05). No anastomotic leakage occurred in both the two groups. Patients with dietary fiber had significantly earlier time of flatus than the control group (P < 0.05). Patients with dietary fiber had significantly lower incidence of diarrhea than the control subjects (P < 0.05). Conclusions The study suggests that it is safe and feasible to use enteral nutrition with dietary fiber for preoperative colon colostomy diaplasis patients. Using dietary fiber is helpful for intestinal function recovery and reduction of the occurrence of adverse reactions after surgery.
Objective To overview the systematic review (SR) of the effects of dietary pattern intervention during pregnancy on pregnant women with gestational diabetes mellitus (GDM). Methods The Cochrane Library, The Joanna Briggs Institute Library, Embase, PubMed, Web of Science, CINAHL, CBM, CNKI, WanFang Data, and VIP databases were electronically searched to collect SR and meta-analysis on the effects of different dietary patterns on maternal and infant outcomes of gestational diabetes mellitus from inception to October 1, 2024. Two reviewers independently screened literature, extracted data, and then AMSTAR 2 tool was used to assess the methodological quality of included studies. Meta-analysis was performed by using RevMan 5.3 software. Results A total of 15 relevant SR were included, the methodological quality of the included SR was generally low, with 3 SR at a low level and 12 SR at a very low level. Major dietary patterns included the low glycemic index (GI) diet, carbohydrate (CHO) restricted diet, energy restricted diet, dietary approaches to stop hypertension (DASH) diet, high-fiber diet, polyunsaturated fatty acid (PUFA) rich diet, soy protein-enriched diet, low glycemic load (GL) diet, and mediterranean diet. A meta-analysis of primary outcome measures showed that the low GI diet, DASH diet and low GL load diet had a lower incidence of blood glucose levels and adverse pregnancy outcomes (including maternal weight gain, insulin use, cesarean section, macrosomia) compared with the control diets. Conclusion It was recommended that GDM pregnant women follow the low GI diet, DASH diet, or low GL diet to control blood glucose levels and improve pregnancy outcomes. There is currently insufficient evidence to support the effects of other dietary patterns on GDM.
Objective To systematically review current status of Chinese DRIs, and compare the similarities and differences between Chinese and global DRIs, so as to provide references for regulating Chinese DRIs. Methods Such database as PubMed, ISI Web of knowledge, The Cochrane Library, CBM, WanFang Data, CNKI and VIP were electronically searched from inception to May 31st, 2013. The reviewers independently screened studies according to inclusion and exclusion criteria, extracted data. Then, descriptive analysis was performed for basic information of literature, formulation of different DRIs, and DRIs distribution by different ages. Results Initially, a total of 588 articles were retrieved, 42 of which were finally included, involving 14 guidelines, 12 systematic reviews (SRs), and 16 original studies. The results showed that, WHO guidelines and global systematic reviews focused on iron and fat-soluble vitamins (A and D); the original studies in China focused not only on iron and vitamin A but also on protein, calcium, zinc, and selenium. The included guidelines focused mainly on population aged 3-18 years old and pregnant women; and except for those two kinds of population, SRs also paid attention to adults aged more than 18 years. The original studies of Chinese DRIs were concerned about all kinds of population, mainly focused adults aged 18-45 years and school children aged 6-12 years. Among 16 included original studies, 4 were concerned about men and 2 about women. Conclusion Chinese DRIs need urgent updates and supplement. As the largest developing country, China has different disease burdens, consumption levels, dietary patterns, nutrients’ content, and security levels, compared with developed countries and other developing countries. To develop evidence-based Chinese DRIs that are suitable for native health and Chinese local conditions, we should drawing lessons from the currently available best DRIs standards, methods and evidence based on Chinese actual conditions, disease burden, and expert opinion.
ObjectiveTo explore the relationship between the diet during pregnancy and gestational diabetes mellitus (GDM), and analyze the effect of GDM on weight gain, outcome and complication of mother and infant. MethodsWe selected 128 GDM pregnant women and 267 non-GDM pregnant women who were investigated by semi-quantitative food frequency method during September 2009 to March 2011. Then, we collected relevant information and the data were analyzed by t-test and chi-square test. ResultsThere were statistically significant differences between the two groups in total calorie, carbohydrate, fat and protein intakes per day (P<0.05). In general, the rates of insufficient weight gain and excessive weight gain during pregnancy in the GDM group were significantly higher than the non-GDM group (P<0.05), while proper weight gain rate was significantly lower (P<0.01). The risk of hydramnion, intrahepatic cholestasis and pregnancy-induced hypertension in the GDM group was significantly higher than the non-GDM group (P<0.05), while there was no significant difference between the two groups in premature delivery, cesarean section or premature membrane ruptures (P>0.05). Apgar scores were significantly different at minute 1 and 5 between the infants in the two groups (P<0.05). The incidence of fetal death, malformation, mild neonatal asphyxia and fetal macrosomia in the GDM group was significantly higher than the non-GDM group (P<0.05). No significant differences between the two groups in low birth weight infant, cord entanglement and fetal distress were detected (P>0.05). ConclusionGDM can lead to high incidence of poor outcome and complication. It is vital to strengthen the examination and keep balanced dietary structure, in order to reduce the complication and improve the health of mother and child.
ObjectiveTo evaluate the dietary and nutritional status of elderly patients with chronic non-infectious diseases in community hospitals in order to make a reasonable dietary pattern for these patients. MethodsA total of 179 elderly patients with chronic non-infectious diseases in a community hospital of Chengdu from January to September 2014 were collected, and we investigated them on their dietary status and basic personal information. The desirable dietary pattern (DDP) score was adopted to evaluate their dietary and nutritional status. ResultsDDP score of the 179 patients with chronic non-infectious diseases in the community hospital was 91.47, and the dietary quality was relatively good. While the DDP scores of animal food and edible oil exceeded the maximum allowable value, DDP scores of the staple food, fish, eggs, vegetables and fruits were lower than the expected scores. ConclusionIt is suggested that meat and other animal food intake be reduced and replaced by regular intakes of poultry, fish and shrimp, and the intake of staple food, eggs, vegetables, fruits be increased to ensure a balanced diet.