23 results on '"Zhong, Feng"'
Search Results
2. Efficacy of Acupuncture for Chronic Spontaneous Urticaria: A Randomized Controlled Trial.
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Zheng, Hui, Xiao, Xian-Jun, Shi, Yun-Zhou, Zhang, Lei-Xiao, Cao, Wei, Zheng, Qian-Hua, Zhong, Feng, Hao, Ping-Sheng, Huang, Ying, Chen, Ming-Ling, Zhang, Wei, Zhou, Si-Yuan, Wang, Yan-Jun, Wang, Chuan, Zhou, Li, Chen, Xiao-Qin, Yang, Zuo-Qin, Zou, Zi-Hao, Zhao, Ling, and Liang, Fan-Rong
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URTICARIA ,RANDOMIZED controlled trials ,ACUPUNCTURE ,TEACHING hospitals - Abstract
Options for treatment of chronic spontaneous urticaria beyond antihistamines are limited. This multicenter, randomized, sham-controlled trial from 3 teaching hospitals in China compared acupuncture, sham acupuncture, and waitlist control for treatment of chronic spontaneous urticaria. Visual Abstract. Efficacy of Acupuncture for Chronic Spontaneous Urticaria: Options for treatment of chronic spontaneous urticaria beyond antihistamines are limited. This multicenter, randomized, sham-controlled trial from 3 teaching hospitals in China compared acupuncture, sham acupuncture, and waitlist control for treatment of chronic spontaneous urticaria. Background: The effectiveness of acupuncture for patients with chronic spontaneous urticaria (CSU), reported in a few small-scale studies, is not convincing. Objective: To investigate whether acupuncture leads to better effects on CSU than sham acupuncture or waitlist control. Design: A multicenter, randomized, sham-controlled trial. (Chinese Clinical Trial Registry: ChiCTR1900022994) Setting: Three teaching hospitals in China from 27 May 2019 to 30 July 2022. Participants: 330 participants diagnosed with CSU. Intervention: Participants were randomly assigned in a 1:1:1 ratio to receive acupuncture, sham acupuncture, or waitlist control over an 8-week study period (4 weeks for treatment and another 4 weeks for follow-up). Measurements: The primary outcome was the mean change from baseline in the Weekly Urticaria Activity Score (UAS7) at week 4. Secondary outcomes included itch severity scores, self-rated improvement, and Dermatology Life Quality Index scores. Results: The mean change in UAS7 (range, 0 to 42) for acupuncture from baseline (mean score, 23.5 [95% CI, 21.8 to 25.2]) to week 4 (mean score, 15.3 [CI, 13.6 to 16.9]) was −8.2 (CI, −9.9 to −6.6). The mean changes in UAS7 for sham acupuncture and waitlist control from baseline (mean scores, 21.9 [CI, 20.2 to 23.6] and 22.1 [CI, 20.4 to 23.8], respectively) to week 4 (mean scores, 17.8 [CI, 16.1 to 19.5] and 20.0 [CI, 18.3 to 21.6], respectively) were −4.1 (CI, −5.8 to −2.4) and −2.2 (CI, −3.8 to −0.5), respectively. The mean differences between acupuncture and sham acupuncture and waitlist control were −4.1 (CI, −6.5 to −1.8) and −6.1 (CI, −8.4 to −3.7), respectively, which did not meet the threshold for minimal clinically important difference. Fifteen participants (13.6%) in the acupuncture group and none in the other groups reported adverse events. Adverse events were mild or transient. Limitation: Lack of complete blinding, self-reported outcomes, limited generalizability because antihistamine use was disallowed, and short follow-up period. Conclusion: Compared with sham acupuncture and waitlist control, acupuncture produced a greater improvement in UAS7, although the difference from control was not clinically significant. Increased adverse events were mild or transient. Primary Funding Source: The National Key R&D Program of China and the Science and Technology Department of Sichuan Province. [ABSTRACT FROM AUTHOR]
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- 2023
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3. Characteristics analysis of water pollutants in Cihu Lake, China, based on a multivariate statistical analysis method.
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He, Wenjie, Xu, Yin, Zhang, Jian, Zhu, Jiadong, Dong, Hao, Zhong, Feng, and Li, Haibo
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WATER pollution ,MULTIVARIATE analysis ,WATER quality monitoring ,WATER analysis ,CANALS ,SEWAGE disposal plants ,WATER pollution laws - Abstract
In order to understand the sources of pollutants and the temporal and spatial distribution characteristics of the water quality in Cihu Lake, China, the monitoring data of seven water quality indicators from 12 sampling sites from 2015 to 2019 were selected, and the temporal and spatial variation laws of the water quality and pollution sources were analyzed by the use of the multivariate statistical analysis method. The results show that nitrogen and phosphorus pollution in the lake is dominant. The average concentrations of total nitrogen (TN) and total phosphorus (TP) exceed the surface water quality Class III standards by 1.6 and 2.2 times, respectively. Spatially, the results of the cluster analysis showed that the water quality in Cihu Lake can be categorized into three regions: the northern half of the lake, the southern half of the lake, and the canal entering the lake. Temporally, the water quality in these three regions can be classified into three categories: March to May (the northern half of Cihu Lake), September to November (the southern half of Cihu Lake), and September (the canal entering Cihu Lake). The discriminant analysis results showed that NH
3 -N, TN, CODCr , and BOD5 are the main factors that affect the uneven spatial distribution of the water quality of Cihu Lake, while TN, DO, and CODMn are the main factors that affect the temporal difference in the northern half of Cihu Lake, and NH3 -N, TP, CODCr , DO, CODMn , TN, and TP are the main factors affecting the temporal difference in the southern half of Cihu Lake and the canal entering Cihu Lake. It was found that the water pollution in the study area can be mainly attributed to the incoming water and urban domestic pollution. The main pollution sources for the canal entering Cihu Lake and the southern half of Cihu Lake are the water from the sewage treatment plant and the domestic sewage that has not been intercepted, while the northern half of Cihu Lake is mainly affected by surface runoff, mixed rainwater and sewage, and internal pollution. [ABSTRACT FROM AUTHOR]- Published
- 2023
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4. Correlation between Drug Resistance of Klebsiella Pneumonia and Antimicrobial Drug Usage.
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Liu, Anyun, Dai, Jun, Shen, Ru, Zhong, Feng, Sheng, Xuehe, and Huang, Houbao
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PNEUMONIA ,ANTIMICROBIAL stewardship ,BETA lactam antibiotics ,ANTI-infective agents ,RETROSPECTIVE studies ,ACQUISITION of data ,KLEBSIELLA infections ,PEARSON correlation (Statistics) ,PENICILLIN ,MEDICAL records ,AMPICILLIN ,DRUG resistance in microorganisms ,ANTIBIOTICS ,PHARMACODYNAMICS - Abstract
Objective. To assess the correlation between the drug resistance of Klebsiella pneumoniae and antimicrobial drug usage. Methods. The drug resistance rate of Klebsiella pneumoniae and the antimicrobial drug dosage of inpatients admitted to The Second Affiliated Hospital of Wannan Medical College from January 2016 to December 2020 were retrospectively recorded, and their correlation was analyzed using the Pearson method. Results. There are 6493 strains of Gram-negative bacteria, including 1272 strains of Klebsiella pneumoniae, ranking first in respiratory medicine. Klebsiella pneumoniae showed an overall increasing trend in resistance to piperacillin/tazobactam and ampicillin/sulbactam and a high resistance to aztreonam, ceftazidime, and ciprofloxacin (all P < 0.05). The top 3 antimicrobial drugs used in 2016–2020 were β-lactams, quinolones, and macrolides. The rates of resistance to piperacillin/tazobactam, cefoperazone/sulbactam, and ampicillin/sulbactam were highly positively correlated with the use of β-lactams. The use of carbapenems and glycopeptides was negatively correlated with the resistance to ciprofloxacin, and the resistance to ceftazidime had a high positive correlation with the use of glycopeptides and carbapenems. Conclusion. The use of antimicrobial drugs is correlated with the resistance rate of Klebsiella pneumoniae. To reduce bacterial drug resistance, the rational use of antimicrobial drugs requires joint control through multiple departments to improve the clinical use of antimicrobial drugs and improve in-hospital control. [ABSTRACT FROM AUTHOR]
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- 2022
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5. Spatial distribution of HIV, HCV, and co-infections among drug users in the southwestern border areas of China (2004-2014): a cohort study of a national methadone maintenance treatment program.
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Mingli Li, Rongjian Li, Zhiyong Shen, Chunying Li, Nengxiu Liang, Zhenren Peng, Wenbo Huang, Chongwei He, Feng Zhong, Xianyan Tang, Guanghua Lan, Li, Mingli, Li, Rongjian, Shen, Zhiyong, Li, Chunying, Liang, Nengxiu, Peng, Zhenren, Huang, Wenbo, He, Chongwei, and Zhong, Feng
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HIV infections ,THERAPEUTICS ,METHADONE treatment programs ,HEPATITIS C treatment ,ANTI-HIV agents ,AUTOCORRELATION (Statistics) ,HIV infection epidemiology ,HEPATITIS C ,LONGITUDINAL method ,NATIONAL health services ,SUBSTANCE abuse ,DRUG abusers ,MIXED infections - Abstract
Background: A methadone maintenance treatment (MMT) program to curb the dual epidemics of HIV/AIDS and drug use has been administered by China since 2004. Little is known regarding the geographic heterogeneity of HIV and hepatitis C virus (HCV) infections among MMT clients in the resource-constrained context of Chinese provinces, such as Guangxi. This study aimed to characterize the geographic distribution patterns and co-clustered epidemic factors of HIV, HCV and co-infections at the county level among drug users receiving MMT in Guangxi Zhuang Autonomous Region, located in the southwestern border area of China.Methods: Baseline data on drug users' demographic, behavioral and biological characteristics in the MMT clinics of Guangxi Zhuang Autonomous Region during the period of March 2004 to December 2014 were obtained from national HIV databases. Residential addresses were entered into a geographical information system (GIS) program and analyzed for spatial clustering of HIV, HCV and co-infections among MMT clients at the county level using geographic autocorrelation analysis and geographic scan statistics.Results: A total of 31,015 MMT clients were analyzed, and the prevalence of HIV, HCV and co-infections were 13.05%, 72.51% and 11.96% respectively. Both the geographic autocorrelation analysis and geographic scan statistics showed that HIV, HCV and co-infections in Guangxi Zhuang Autonomous Region exhibited significant geographic clustering at the county level, and the Moran's I values were 0.33, 0.41 and 0.30, respectively (P < 0.05). The most significant high-risk overlapping clusters for these infections were restricted to within a 10.95 km2 radius of each of the 13 locations where P county was the cluster center. These infections also co-clustered with certain characteristics, such as being unmarried, having a primary level of education or below, having used drugs for more than 10 years, and receptive sharing of syringes with others. The high-risk clusters for these characteristics were more likely to reside in the areas surrounding P county.Conclusions: HIV, HCV and co-infections among MMT clients in Guangxi Zhuang Autonomous Region all presented substantial geographic heterogeneity at the county level with a number of overlapping significant clusters. The areas surrounding P county were effective in enrolling high-risk clients in their MMT programs which, in turn, might enable people who inject drugs to inject less, share fewer syringes, and receive referrals for HIV or HCV treatment in a timely manner. [ABSTRACT FROM AUTHOR]- Published
- 2017
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6. Elevated Ozone Changed Soil Microbial Community in a Rice Paddy.
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Zhan Chen, Xiao-Ke Wang, Fang-Fang Yao, Fei-Xiang Zheng, and Zhao-Zhong Feng
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SOIL microbiology ,OZONE & the environment ,BIOMASS ,PHOSPHOLIPIDS ,RICE soils - Abstract
Although the environmental impact of ozone (O
3 ) has been widely investigated, there have been few studies about the effect of O3 on underground processes, especially soil microbial communities. This study aimed to investigate O3 effects on the soil microbial community structure and function in a rice paddy field, China. There were three treatments within open-top chambers: charcoal-filtered air (CF as a check treatment), CF plus 100 nL O3 L-1 (O3 -1), and CF plus 150 nL O3 L-1 (O3 -2). Soil samples were collected in August, September, and October to assess microbial biomass C, community.level physiological profiles (CLPPs), and phospholipid fatty acids (PLFAs) of soil microbes. The results showed that soil microbial biomass under elevated O3 concentration was statistically significantly decreased compared with the check treatment in October. Soil microbial functional indices including average well color development, richness, and Shannon diversity were significantly decreased by elevated O3 in September. Principal components analysis of CLPP data showed that elevated O3 significantly changed the C sources utilization pattern of microbes in September (Principle Component 1, P < 0.05). During all growing stages, elevated O3 had significant effects on soil microbial composition expressed as PLFA percentage, which indicated that PLFA was more sensitive than CLPP for study of the microbial community. The stress indicators, including the ratio of saturated to unsaturated fatty acids and the ratio of cyclopropyl fatty acids to their precursors, such as cyl7:0 to 16: lω7c, also increased under elevated O3 exposure. [ABSTRACT FROM AUTHOR]- Published
- 2010
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7. The clinical significance of apolipoprotein L1 in head and neck squamous cell carcinoma.
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Zhong, Feng, Lu, Hui-Ping, Chen, Gang, Dang, Yi-Wu, Zhang, Xiao-Guohui, Liang, Yao, Li, Ming-Xuan, Li, Guo-Sheng, Chen, Xiao-Yi, Yao, Yu-Xuan, Qin, Yong-Ying, Mo, Miao, Zhang, Kai-Lang, Ding, Hua, Huang, Zhi-Guang, and Wei, Zhu-Xin
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SQUAMOUS cell carcinoma , *RECEIVER operating characteristic curves , *PROTEIN expression , *NUCLEOTIDE sequence , *BIOMARKERS - Abstract
Approximately 500,000 new head and neck squamous cell carcinoma (HNSCC) cases are detected every year around the world, and its incidence ranks sixth among all cancer types globally. Among these cases, oral squamous cell carcinoma (OSCC) and laryngeal squamous cell carcinoma (LSCC) are HNSCC subtypes with high incidence rates, especially in China. The present study examines the association between the apolipoprotein L1 (APOL1) mRNA and protein expression and clinical parameters in HNSCC. The two most common types (oral and larynx) of HNSCC were selected for subgroup analyses. Immunohistochemistry (IHC) was used to detect APOL1 protein expression levels in HNSCC clinical specimens. It was demonstrated that APOL1 protein expression in 221 cases of HNSCC was higher compared with that in normal tissues. Consistent upregulation of APOL1 protein was also found in subgroups of OSCC and LSCC. Through mining the ArrayExpress, The Cancer Genome Atlas and the Gene Expression Omnibus databases, microarrays and RNA sequencing data for HNSCC were retrieved, which were used to analyze APOL1 mRNA expression levels. The results showed that APOL1 expression was higher in both OSCC and LSCC subtypes, as well as in HNSCC, compared with that in non-cancerous squamous epithelium. The summary receiver operating characteristic analysis showed that APOL1 had potential as a diagnostic biomarker for HNSCC, OSCC and LSCC. Thus, upregulation of APOL1 may contribute to the tumorigenesis of HNSCC. [ABSTRACT FROM AUTHOR]
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- 2020
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8. Mushroom poisoning of Panaeolus subbalteatus from Ningxia, northwest China, with species identification and tryptamine detection.
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Yao, Yi, Zhang, Yi-Zhe, Liang, Jia-Qi, Liu, Feng, Li, Zhong-Feng, Li, Hai-Jiao, and Xu, Fei
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QUADRUPOLE ion trap mass spectrometry , *POISONING , *TRYPTAMINE , *SENSE of direction , *MUSHROOMS , *FOODBORNE diseases - Abstract
Mushroom poisoning is a significant contributor to foodborne disease outbreaks in China. This study focuses on two Panaeolus subbalteatus poisoning incidents accompanied by epidemiological investigations, species identification, and toxin detection in Ningxia, northwest China. In these two poisoning incidents, some patients exhibited gastrointestinal or neurological symptoms approximately 0.5 h after ingestion of a large amount of wild mushroom. Specifically, in Case 1, one of the three patients experienced nausea, vomiting, and numbness in the throat and limbs; in Case 2, one patient reported dizziness and an abnormal sense of direction. Through morphological and phylogenetic analyses, mushroom specimens were identified as P. subbalteatus. Psilocybin and psilocin were detected in mushroom samples, and only psilocin was detected in biological samples by liquid chromatography-triple quadrupole-linear ion trap mass spectrometry screening. The average psilocybin and psilocin contents in mushroom samples were 1532.2–1760.7 and 114.5–136.0 mg/kg (n = 3), respectively. Moreover, only psilocin was detected in blood and urine samples, with average concentrations 0.5–1.2 ng/mL (n = 3) and 2.5–3.1 ng/mL (n = 3), respectively. These findings provide technical support for managing similar incidents in the future. [Display omitted] • Two Panaeolus subbalteatus poisoning were reported in Ningxia, China, with detailed epidemiologic investigations. • Through morphological and phylogenetic analyses, poisonous mushroom specimens were identified as P. subbalteatus. • Psilocybin and psilocin were detected in P. subbalteatus , and only psilocin was found in biological samples. • This study provides technical support for managing similar mushroom poisoning incidents in the future. [ABSTRACT FROM AUTHOR]
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- 2024
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9. Cognitive function and elderly macronutrient intakes from rural diets in Qingdao, China.
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Zunyan Chu, Jiuxuan Gao, Li Ma, Han Zhou, Feng Zhong, Lei Chen, Tianlin Gao, Aiguo Ma, Chu, Zunyan, Gao, Jiuxuan, Ma, Li, Zhou, Han, Zhong, Feng, Chen, Lei, Gao, Tianlin, and Ma, Aiguo
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FOOD consumption , *DIET , *COGNITION , *PSYCHOLOGICAL tests , *QUESTIONNAIRES , *DIETARY proteins , *DIETARY fats - Abstract
Background and Objectives: Energy provided by macronutrients plays a key role in healthy aging. This study therefore explored the association between macronutrients and cognitive function in elderly populations in rural areas of Qingdao, China.Methods and Study Design: This study included 1,504 participants over the age of 65 recruited from Licha Town, Qingdao City, China. Dietary intake was measured using the Food Frequency Questionnaire, and cognitive function was assessed using the Mini-Mental State Examination. Logistic regression models were used to evaluate the association between dietary macronutrient intake and cognitive function. In addition, restricted cubic bars were applied to determine the dose-response relationship between macronutrient ratios and cognitive performance.Results: A total of 877 adults over the age of 65 were included. After adjusting the weighted multiple variables, significant positive associations were revealed between protein and moderate carbohydrate intake and cognitive ability, but a negative association between fat intake and cognitive performance was identified. After calculating the daily energy supply ratio, similar associations were revealed between fat and protein intake and cognitive function. Furthermore, the ratio of proteins to carbohydrates had a U-shaped relationship with cognitive function (pnonlinearity=0.674), whereas the ratio of proteins to fats was L-shaped with lower cognitive function (pnonlinearity<0.001). Compared with the lowest quartile of the ratio of protein to fat intake, the weighted adjusted OR (95% CI) of the highest quartile was 0.509 (0.314, 0.827) for low cognitive performance.Conclusions: With an adequate carbohydrate supply, appropriately increasing dietary protein intake and reducing fat intake might benefit the cognitive function of elders in rural areas. [ABSTRACT FROM AUTHOR]- Published
- 2022
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10. Dietary patterns and cognitive function in older adults residing in rural China.
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Kunxiang Ding, Han Zhou, Tianlin Gao, Rui Xu, Lei Chen, Jing Cai, Huaqi Zhang, Feng Zhong, Aiguo Ma, Ding, Kunxiang, Zhou, Han, Gao, Tianlin, Xu, Rui, Chen, Lei, Cai, Jing, Zhang, Huaqi, Zhong, Feng, and Ma, Aiguo
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OLDER people , *COGNITIVE ability , *MILD cognitive impairment , *SNACK foods , *COGNITION disorders , *RICE flour , *SEAFOOD , *FOOD habits , *VEGETABLES , *CROSS-sectional method , *COGNITION , *DIET , *QUESTIONNAIRES - Abstract
Background and Objectives: Research has produced inconsistent findings on the association between dietary patterns and cognitive function. In the present study, we examined the association between dietary patterns and cognitive function among rural China's older adults and aimed to identify major dietary patterns.Methods and Study Design: This cross-sectional study included 1176 individuals aged 65-85 years. Dietary intake was assessed using a food frequency questionnaire. Factor analysis and the Chinese Dietary Balance Index were respectively employed to determine dietary patterns and assess dietary quality. Cognitive function was evaluated using the Mini-Mental State Examination, and logistic regression analysis was performed to examine the relationship between dietary patterns and cognitive decline.Results: Three main dietary patterns were identified and named on the basis of foods with high content: a "healthy dietary pattern," a "multigrain dietary pattern," and a "snack dietary pattern." With the increase in the score of the healthy dietary pattern, the Mini-Mental State Examination total score exhibited a significant downward trend (p<0.001). Moreover, we observed a prominent negative association between the healthy dietary pattern and mild cognitive impairment (4th to 1st quartile, OR=0.36; 95%CI, 0.24-0.54; p<0.001). After we adjusted for potential covariates, the negative correlation remained (4th to 1st quartile, OR=0.48; 95%CI, 0.28-0.81; p=0.006). However, no relation was observed between mild cognitive impairment and either the multigrain or snack dietary patterns.Conclusions: The healthy dietary pattern, which is based on the consumption of rice and flour, red meat, chicken, vegetables, seafood, and fruits, protects against cognitive dysfunction. [ABSTRACT FROM AUTHOR]- Published
- 2021
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11. Food consumption and mild cognitive impairment in Qingdao rural elderly: A cross-sectional study.
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Rui Xu, Tianlin Gao, Jing Cai, Huaqi Zhang, Han Zhou, Kunxiang Ding, Lei Chen, Feng Zhong, Aiguo Ma, Xu, Rui, Gao, Tianlin, Cai, Jing, Zhang, Huaqi, Zhou, Han, Ding, Kunxiang, Chen, Lei, Zhong, Feng, and Ma, Aiguo
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MILD cognitive impairment , *NUTS , *FOOD consumption , *CROSS-sectional method , *FOOD habits , *POULTRY as food , *OLDER people , *INGESTION , *DIET , *COGNITION - Abstract
Background and Objectives: Diet plays a crucial role in cognition. Mild cognitive impairment has a high prevalence in rural elderly people. However, few studies have investigated the relationship between diet and mild cognitive impairment among rural elderly people in China. The study evaluated the association between diet and the risk of mild cognitive impairment among them.Methods and Study Design: In this cross-sectional study, we enrolled 1262 participants (≥65 years) living in rural Qingdao, China. Cognitive function was assessed using the Mini-Mental State Examination, and dietary consumption was measured using a food frequency questionnaire. Logistic regression models were used to assess the associations.Results: In all, 315 (25%) participants had mild cognitive impairment. The weekly frequency of food consumption was lower in the mild cognitive impairment group than in the no mild cognitive impairment group. After adjusting for covariates, compared with participants who consumed never/less than once a week, daily consumption of coarse cereals (OR: 0.64, 95% CI: 0.44-0.91), potatoes (OR: 0.54, 95% CI: 0.34-0.87), fruits (OR: 0.49, 95% CI: 0.35-0.69), livestock and poultry meat (OR: 0.66, 95% CI: 0.44-0.99), eggs (OR: 0.67, 95% CI: 0.47-0.97), and nuts (OR: 0.47, 95% CI: 0.28-0.80) was inversely associated with mild cognitive impairment (all p<0.05).Conclusions: Higher dietary diversity and more frequent consumption of coarse cereals, potatoes, fruits, livestock and poultry meat, eggs, and nuts were associated with a lower risk of mild cognitive impairment. Elderly people should develop healthy dietary habits to prevent or delay cognitive decline. [ABSTRACT FROM AUTHOR]- Published
- 2020
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12. Utility of integrated IMERG precipitation and GLEAM potential evapotranspiration products for drought monitoring over mainland China.
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Jiang, Shanhu, Wei, Linyong, Ren, Liliang, Xu, Chong-Yu, Zhong, Feng, Wang, Menghao, Zhang, Linqi, Yuan, Fei, and Liu, Yi
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DROUGHT management , *EVAPOTRANSPIRATION , *METEOROLOGICAL stations , *PET supplies , *DROUGHTS - Abstract
In this paper, we comprehensively evaluated the utility of integrated long-term satellite-based precipitation and evapotranspiration products for drought monitoring over mainland China. The latest Integrated Multi-satelliteE Retrievals for Global Precipitation Measurement V06 three Runs precipitation products, i.e., the near real-time Early Run (IMERG-E) and Late Run (IMERG-L) and the post-real time Final Run (IMERG-F), and the Global Land Evaporation Amsterdam Model V3.3a (GLEAM) potential evapotranspiration (PET) products from 2001 to 2017 were considered. The accuracy of IMERG precipitation and GLEAM PET products was first evaluated against observed precipitation and Penman-Monteith method estimated PET, respectively, based on dense meteorological station network. The Standard Precipitation Evapotranspiration Index (SPEI) calculated based on IMERG precipitation and GLEAM PET products (SPEIs, including SPEI E , SPEI L and SPEI F corresponding to IMERG-E, IMERG-L and IMERG-F, respectively) were then validated by using SPEI calculated based on meteorological data (SPEIm) at multiple temporal-spatial scales. Finally, four typical drought events were selected to analyse the ability of SPEIs to characterize the temporal-spatial evolution of drought situations. The results showed that the IMERG-F presents much better performance than IMERG-E and IMERG-L in terms of higher CC and smaller BIAS and RMSE values over mainland China. The GLEAM PET well simulated the change trend of reference PET, but generally underestimated reference PET in Northwest China (NW), Xinjiang (XJ) and Qinghai–Tibet plateau (TP). In general, the performances of SPEIs over eastern China and Southwest China (SW) were significantly superior to their performances in the NW, XJ, and TP regions. Even though the SPEI F performed the best, the SPEI E and SPEI L also performed reasonably well in some specific regions. SPEIs can well capture the temporal process and reasonably reflect the spatial characteristics for four typical drought events. It is thus highlighted that the latest IMERG precipitation (especially for IMERG-F) and GLEAM PET products could be used as alternative data sources for comprehensive drought monitoring, on account of the water balance principle over mainland China, particularly in eastern China and SW China. The outcomes of this study will provide valuable references for drought monitoring by integration of multi-source remote-sensing datasets in the GPM era. • The utility of integrated IMERG precipitation and GLEAM PET for drought monitoring was evaluated over mainland China. • SPEIs based on IMERG precipitation and GLEAM PET were validated at multiple spatial and temporal scales over mainland China. • IMERG precipitation and GLEAM PET show great potential for drought monitoring over eastern China and Southwest China. • SPEIs can well capture the temporal process and reasonably reflect the spatial characteristics for typical drought events. [ABSTRACT FROM AUTHOR]
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- 2021
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13. Three-dimensional ecological drought identification and evaluation method considering eco-physiological status of terrestrial ecosystems.
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Zhu Y, Jiang S, Ren L, Guo J, Zhong F, Du S, Cui H, He M, and Duan Z
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- China, Droughts, Ecosystem, Environmental Monitoring methods, Climate Change
- Abstract
Ecological drought is a complex process in terrestrial ecosystems where vegetation's eco-physiological functions are impaired due to water stress. However, there is currently a lack of long-term assessment of ecological drought from an eco-physiological perspective. In this study, the standardized ecological drought index (SESNDI) was developed using actual evaporation, root soil moisture, and kernel normalized difference vegetation index via the Euclidean distance method, reflecting ecosystem physiology, water supply capacity, and vegetation status. Solar-induced chlorophyll fluorescence validated SESNDI by reflecting vegetation photosynthesis. Using China as an example, severely impacted by climate change and ecological restoration, ecological drought's spatio-temporal variation and propagation characteristics was evaluated using clustering algorithms. The results demonstrated that (1) SESNDI showed superior performance over several other drought indices. (2) During 1982-2020, ecological drought was prevalent from 1990 to 2010, especially in the central and northeastern regions. (3) Compared to 1982-2000, the median duration and affected area of ecological drought events during 2001-2020 reduced by four months and 1.51 × 10
5 km2 , respectively, while the median intensity increased by 0.06. (4) Decreased precipitation and increased temperature were the primary factors contributing to the frequent occurrence of ecological drought in China from 1990 to 2010. This study offers a crucial methodology for evaluating ecological drought, serving as a reference for developing effective terrestrial restoration strategies., Competing Interests: Declaration of competing interest The authors declare no competing interests., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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14. Profiles of physical frailty, social frailty, and cognitive impairment among older adults in rural areas of China: a latent profile analysis.
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Dong Q, Bu X, Wang T, Liu M, Zhong F, and Liu C
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- Humans, China epidemiology, Male, Female, Cross-Sectional Studies, Aged, Aged, 80 and over, Frail Elderly statistics & numerical data, Geriatric Assessment statistics & numerical data, Middle Aged, Cognitive Dysfunction epidemiology, Rural Population statistics & numerical data, Frailty epidemiology
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Background: As China rapidly ages, it has now become a deeply aging society with the largest number of older individuals in the world. The issue is particularly severe in rural areas. With the aging population growing and the older population expanding, health problems are becoming more prevalent among older individuals, particularly frailty and cognitive impairments. This study aimed to identify the profiles of physical frailty, social frailty, and cognitive impairment among older adults and explore the influencing factors., Methods: In this cross-sectional study, participants were recruited from six villages in four cities in Shandong Province, China from July to October 2023 through cluster random sampling. Latent profile analysis was used to determine the profiles of physical frailty, social frailty, and cognitive impairment. Chi-square tests and Mann-Whitney U tests were used for univariate analysis, while binary logistic regression was used to analyze the related factors., Results: Seven hundred and sixty-nine older adult care in rural areas showed two profiles: the "high cognitive function and low frailty" group (73.7%, n = 567) and the "low cognitive function and high frailty" group (26.3%, n = 202). A binary logistic regression found that older people were more likely to be aged 80 or older (OR = 2.253, p = 0.029), have a low income level (OR = 1.051, p = 0.007), have one or two (OR = 2.287, p = 0.004), or more than three chronic diseases (OR = 3.092, p = 0.002), and report moderate (OR = 3.406, p = 0.024) or poor health status (OR = 9.085, p < 0.001) in the "low cognitive function and high frailty" group. Meanwhile, older adults who have completed high school (OR = 0.428, p = 0.005) or junior college and above (OR = 0.208, p = 0.009), and engage in adequate physical activity (OR = 0.319, p < 0.001) were more likely to be in the "high cognitive function and low frailty" group., Conclusion: In the future, medical professors should increasingly prioritize promptly identifying and intervening in cognitive decline and frailty status in older individuals without delay., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Dong, Bu, Wang, Liu, Zhong and Liu.)
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- 2024
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15. Relationships between oral function, dietary intake and nutritional status in older adults aged 75 years and above: a cross-sectional study.
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Wu X, Xu Y, Liu Y, Ma A, Zhong F, Gao T, Cai J, Chen Y, Wang Y, Zhou W, and Ma Y
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- Humans, Cross-Sectional Studies, Aged, Male, Female, Aged, 80 and over, China epidemiology, Malnutrition epidemiology, Oral Health statistics & numerical data, Diet statistics & numerical data, Eating physiology, Surveys and Questionnaires, Nutrition Assessment, Nutritional Status
- Abstract
Background: Malnutrition is related to impaired oral health and function that causes poor dietary intake, declining the general health of older adults. The role of dietary intake in the association between oral function and nutritional status of Chinese older adults (aged 75 and above) was examined in this cross-sectional study., Methods: Through the randomized cluster sampling method, 267 older adults living in rural areas of Qingdao, Shandong (aged 81.4 ± 4.3, 75-94 years) were chosen as the primary research participants. A Mini Nutritional Assessment - Short Form was used to determine nutritional status, and Food Frequency Questionnaire and 24-hour Food Intake Recall were used to assess dietary intake. The oral function was evaluated by analyzing the teeth, oral problems, bite force, tongue pressure, lip sealing pressure, chewing function questionnaire, whole saliva flow rate, 10-Item Eating Assessment Tool, and water swallow test., Results: Based on the MNA-SF score, it was divided into a well-nourished group and a malnutrition group, with the malnutrition group comprising 40.6% of participants. The participants in the malnutrition group showed a higher rate of xerostomia, lower bite force, tongue pressure, and lip sealing pressure, and higher Chewing Function Questionnaire and 10-Item Eating Assessment Tool scores. Furthermore, their plant fat, iron, cereals and potatoes, vegetables, fruits, and seafood intake were relatively low. The regression model indicated that exercise frequency, stroke, chewing and swallowing function, intake of vegetables and fruits were risk factors for nutritional status of older adults., Conclusion: Malnutrition was relatively common among the Chinese older adults aged 75 and above, and it was significantly correlated with exercise frequency, stroke, chewing and swallowing function, and intake of vegetables and fruits. Therefore, nutrition management should be carried out under the understanding and guidance of the oral function and dietary intake of the older adults., (© 2024. The Author(s).)
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- 2024
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16. Cognitive function and elderly macronutrient intakes from rural diets in Qingdao, China.
- Author
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Chu Z, Gao J, Ma L, Zhou H, Zhong F, Chen L, Gao T, and Ma A
- Subjects
- Adult, Aged, China, Cognition physiology, Diet, Eating, Humans, Dietary Fats, Dietary Proteins
- Abstract
Background and Objectives: Energy provided by macronutrients plays a key role in healthy aging. This study therefore explored the association between macronutrients and cognitive function in elderly populations in rural areas of Qingdao, China., Methods and Study Design: This study included 1,504 participants over the age of 65 recruited from Licha Town, Qingdao City, China. Dietary intake was measured using the Food Frequency Questionnaire, and cognitive function was assessed using the Mini-Mental State Examination. Logistic regression models were used to evaluate the association between dietary macronutrient intake and cognitive function. In addition, restricted cubic bars were applied to determine the dose-response relationship between macronutrient ratios and cognitive performance., Results: A total of 877 adults over the age of 65 were included. After adjusting the weighted multiple variables, significant positive associations were revealed between protein and moderate carbohydrate intake and cognitive ability, but a negative association between fat intake and cognitive performance was identified. After calculating the daily energy supply ratio, similar associations were revealed between fat and protein intake and cognitive function. Furthermore, the ratio of proteins to carbohydrates had a U-shaped relationship with cognitive function (pnonlinearity=0.674), whereas the ratio of proteins to fats was L-shaped with lower cognitive function (pnonlinearity<0.001). Compared with the lowest quartile of the ratio of protein to fat intake, the weighted adjusted OR (95% CI) of the highest quartile was 0.509 (0.314, 0.827) for low cognitive performance., Conclusions: With an adequate carbohydrate supply, appropriately increasing dietary protein intake and reducing fat intake might benefit the cognitive function of elders in rural areas.
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- 2022
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17. Chromosome-level genome assembly of Zizania latifolia provides insights into its seed shattering and phytocassane biosynthesis.
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Yan N, Yang T, Yu XT, Shang LG, Guo DP, Zhang Y, Meng L, Qi QQ, Li YL, Du YM, Liu XM, Yuan XL, Qin P, Qiu J, Qian Q, and Zhang ZF
- Subjects
- China, Oryza genetics, Phylogeny, Poaceae metabolism, Chromosomes, Plant genetics, Genome, Plant genetics, Poaceae genetics, Seeds genetics
- Abstract
Chinese wild rice (Zizania latifolia; family: Gramineae) is a valuable medicinal homologous grain in East and Southeast Asia. Here, using Nanopore sequencing and Hi-C scaffolding, we generated a 547.38 Mb chromosome-level genome assembly comprising 332 contigs and 164 scaffolds (contig N50 = 4.48 Mb; scaffold N50 = 32.79 Mb). The genome harbors 38,852 genes, with 52.89% of the genome comprising repetitive sequences. Phylogenetic analyses revealed close relation of Z. latifolia to Leersia perrieri and Oryza species, with a divergence time of 19.7-31.0 million years. Collinearity and transcriptome analyses revealed candidate genes related to seed shattering, providing basic information on abscission layer formation and degradation in Z. latifolia. Moreover, two genomic blocks in the Z. latifolia genome showed good synteny with the rice phytocassane biosynthetic gene cluster. The updated genome will support future studies on the genetic improvement of Chinese wild rice and comparative analyses between Z. latifolia and other plants., (© 2022. The Author(s).)
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- 2022
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18. [Effects of Eucalyptus Branches Biochar Application on Soil Physicochemical Properties of Acidified Soil in a Eucalyptus plantation in Northern Guangxi].
- Author
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Daun CY, Shen YY, Xu GP, Teng QM, Zhang DN, He CX, Zhang ZF, Zhou LW, and Sun YJ
- Subjects
- Carbon analysis, Charcoal, China, Nitrogen analysis, Eucalyptus, Soil
- Abstract
This study aims to explore the effects of different biochar applications on soil physical and chemical properties in a Eucalyptus plantation in Northern Guangxi, find the best biochar application amount, and provide scientific guidance for the efficient utilization of forest residue and soil improvement. The soil of a four-year Eucalyptus plantation at the Huangmian forest farm in Northern Guangxi was selected as the study area, and six treatments including 0 (CK), 0.5% (T1), 1.0% (T2), 2% (T3), 4% (T4), and 6% (T5) were set through a field-positioning experiment to analyze the changes in soil physical and chemical properties under different application rates. Compared with the 0-30 cm soil layer of the control treatment, biochar application decreased the mean soil bulk by 3.82%-33.55%, while it increased the soil natural water content, capillary porosity, and total capillary porosity by 7.67%-31.75%, 8.95%-33.19%, and 9.28%-35.86%, respectively. The contents of exchangeable acid, exchangeable aluminum, exchangeable hydrogen, and exchangeable sodium in the soil decreased by 8.28%-70.03%, 5.55%-70.34%, 5.10%-21.78%, and 12.81%-49.27%. Biochar application increased the cation exchange capacity, electrical conductivity, exchangeable magnesium, and exchangeable calcium by 27.08%-160.39%, 117.00%-546.64%, 17.10%-66.14%, and 17.38%-71.38%, respectively. Soil pH increased by 0.17-1.29 after biochar addition. Similarly, the contents of soil organic carbon, total phosphorus, total potassium, available nitrogen, available phosphorus, and available potassium increased by 10.94%-51.37%, 14.29%-59.45%, 6.48%-59.57%, 6.28%-29.41%, 4.79%-19.81%, and 7.72%-75.87%. There was a positive correlation among the main physical and chemical factors. The physical and chemical properties reached their maximum values in the T4 or T5 treatment (4% or 6%). Biochar application provided considerable relief from soil acidification in the Eucalyptus plantation and had a positive effect on soil physicochemical properties. The addition 4%-6% of ripe Eucalyptus biochar produced the optimum results. The results show that biochar can improve the physical and chemical properties of soil, increase soil fertility, and enhance the soil's ability to retain water and fertilizer after twelve months. The findings of this study can be used as a reference in practical applications for soil improvement and sustainable management of Eucalyptus plantations.
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- 2020
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19. An untargeted fecal and urine metabolomics analysis of the interplay between the gut microbiome, diet and human metabolism in Indian and Chinese adults.
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Jain A, Li XH, and Chen WN
- Subjects
- Adult, Amino Acids analysis, Asian People, China, Chromatography, Liquid, Fatty Acids analysis, Female, Gas Chromatography-Mass Spectrometry, Healthy Volunteers, Humans, India, Male, Metabolomics, Young Adult, Bacteria classification, Bacteria metabolism, Diet, Feces chemistry, Gastrointestinal Microbiome, Metabolome, Urine chemistry
- Abstract
Gut microbiome plays a vital role in human health. Human fecal and urine metabolome could provide a functional readout of gut microbial metabolism as well as its interaction with host and diet. However, this relationship still needs to be fully characterized. We established an untargeted GC-MS metabolomics method which enabled the detection of 122 and 86 metabolites including amino acids, phenolics, indoles, carbohydrates, sugars and metabolites of microbial origin from fecal and urine samples respectively. 41 compounds were confirmed using external standards. Next, we compared the fecal and urine metabolome of 16 healthy Indian and Chinese adults, ages 22-35 years, using a combined GC-MS and LC-MS approach. We showed dietary habit or ethnicity wise grouping of urine and fecal metabolite profiles of Indian and Chinese adults. Our analysis revealed 53 differentiating metabolites including higher abundance of amino acids and phenolics in Chinese and higher abundance of fatty acids, glycocholic acid, metabolites related to tryptophan metabolism in Indian adults. Correlation analysis showed a strong association of metabolites with gut bacterial profiles of the same subjects in the genus and species level. Thus, our results suggest that gut bacterial compositional changes could be eventually monitored and probed using a metabolomics approach.
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- 2019
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20. [Soil Organic Carbon Distribution and Components in Different Plant Communities Along a Water Table Gradient in the Huixian Karst Wetland in Guilin].
- Author
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Xu GP, Li YQ, Shen YY, Zhang DN, Sun YJ, Zhang ZF, Zhou LW, and Duan CY
- Subjects
- China, Nitrogen, Plants, Carbon analysis, Groundwater, Soil chemistry, Wetlands
- Abstract
In order to reveal the effect of vegetation type and soil physicochemical properties on the distribution of soil organic carbon and its components, a field survey was carried out on nine different plant communities along a water table gradient in the Huixian wetland with samples of soil at 0-10 cm, 10-20 cm, and 20-30 cm in depth. The soil organic carbon (SOC), light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), easily oxidized organic carbon (EOC), dissolved organic carbon (DOC), particulate organic carbon (POC), and microbial biomass carbon (MBC) were measured. The correlations among soil organic carbon components and soil physicochemical properties were also examined. The results showed that:① The average proportion of LFOC and HFOC to SOC at 0-30 cm soil depth was 11.10% and 88.90%, respectively. The distribution ratio of the heavy component was much higher than of the light component in soils. ② The content of SOC, DOC, EOC, POC, and MBC (except in the Panicum repens community) and the values of DOC/SOC, EOC/SOC, and POC/SOC all decreased with increase of the soil depth. ③ Among the nine different plant communities, the contents of SOC, LFOC, HFOC, MBC, DOC, EOC, and POC of Cladium chinense were significantly higher than for other communities in same soil layers. ④ There were significantly positive correlations among soil organic carbon components (SOC) and soil total nitrogen (TN). LFOC, HFOC, DOC, and POC were also positively correlated with soil pH. The soil bulk density was significantly negative correlated with LFOC, HFOC, DOC, EOC, and POC, and the content of clay was also negatively correlated with LFOC, HFOC, DOC, POC, and MBC. ⑤ Path analysis showed that TN, soil pH, soil sand content, and soil water content (SWC) has indirect effects on HFOC by influencing other soil factors. Soil TN had strong positive effects on EOC, DOC, and POC, and SWC also has the largest direct negative effect on MBC. This showed that there were close interactions between soil physicochemical properties and soil organic carbon components. This study may provide a reference base for sustainable development and scientific predictions regarding the Huixian Karst wetland.
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- 2019
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21. [Acupoints selection rules analysis of ancient acupuncture for urinary incontinence based on data mining technology].
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Zhang W, Tan Z, Cao J, Gong H, Qin Z, Zhong F, Cao Y, and Wei Y
- Subjects
- China, Data Mining, Databases, Bibliographic history, History, 15th Century, History, 16th Century, History, 17th Century, History, 18th Century, History, 19th Century, History, 20th Century, History, 21st Century, History, Ancient, History, Medieval, Humans, Medicine in Literature, Urinary Incontinence history, Acupuncture Points, Acupuncture Therapy history, Urinary Incontinence therapy
- Abstract
Based on ancient literature of acupuncture in Canon of Chinese Medicine (4th edition), the articles regarding acupuncture for urinary incontinence were retrieved and collected to establish a database. By Weka data mining software, the multi-level association rules analysis method was applied to analyze the acupoints selection characteristics and rules of ancient acupuncture for treatment of urinary incontinence. Totally 356 articles of acupuncture for urinary incontinence were collected, involving 41 acupoints with a total frequency of 364. As a result, (1) the acupoints in the yin-meridian of hand and foot were highly valued, as the frequency of acupoints in yin-meridians was 2.6 times than that in yang-meridians, and the frequency of acupoints selected was the most in the liver meridian of foot-jueyin; (2) the acupoints in bladder meridian of foot-taiyang were also highly valued, and among three yang-meridians of foot, the frequency of acupoints in the bladder meridian of foot-taiyang was 54, accounting for 65.85% (54/82); (3) more acupoints selected were located in the lower limbs and abdomen; (4) specific acupoints in above meridians were mostly selected, presenting 73.2% (30/41) to the ratio of number and 79.4% (289/364) to the frequency, respectively; (5) Zhongji (CV 3), the front-mu point of bladder meridian, was seldom selected in the ancient acupuncture literature, which was different from modern literature reports. The results show that urinary incontinence belongs to external genitalia diseases, which should be treated from yin, indicating more yin-meridians be used and special acupoints be focused on. It is essential to focus inheritance and innovation in TCM clinical treatment, and applying data mining technology to ancient literature of acupuncture could provide classic theory basis for TCM clinical treatment.
- Published
- 2015
22. Single nucleotide polymorphisms in the u-PA gene are related to susceptibility to oral tongue squamous cell carcinoma in the Northern Chinese Han population.
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Zhong F, Yang XC, Bu LX, Li NY, and Chen WT
- Subjects
- Base Sequence, China, Female, Gene Frequency, Genetic Predisposition to Disease, Genotype, Humans, Linkage Disequilibrium genetics, Male, Polymorphism, Single Nucleotide, Sequence Analysis, DNA, Carcinoma, Squamous Cell genetics, Tongue Neoplasms genetics, Urokinase-Type Plasminogen Activator genetics
- Abstract
Aim: The purpose of this study was to determine whether susceptibility to oral tongue squamous cell carcinoma (OSCC) is related to polymorphisms in the u-PA gene., Methods: We examined the rs2227564 C/T and rs2227562 G/A single nucleotide polymorphisms (SNPs) in 196 OSCC patients and 201 age- and gender- matched controls via direct sequencing and PCR-RFLP methods., Results: Significant differences were found in allelic and genotypic distributions of the rs2227564 and rs2227562 loci when comparing cases and controls. In addition, logistic analyses indicated that the rs2227564 C/T genotype was related to a 1.52-fold increased risk of developing OSCC (adjusted OR=1.521, 95%CI: 1.144~2.022, P=0.004). Linkage disequilibrium analysis was conducted and no association between the two loci was found (D'=0.031, r2=0.000)., Conclusions: Our findings provide evidence that the rs2227564 C/T SNP in the u-PA gene is associated with the development of OSCC.
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- 2013
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23. Use acupuncture to treat functional constipation: study protocol for a randomized controlled trial.
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Li Y, Zheng H, Zeng F, Zhou SY, Zhong F, Zheng HB, Chen M, Jing XH, Cai YY, Jia BH, Zhu B, and Liu ZS
- Subjects
- Acupuncture Points, Adolescent, Adult, Aged, Benzamides therapeutic use, China, Constipation diagnosis, Constipation physiopathology, Constipation psychology, Defecation, Gastrointestinal Agents therapeutic use, Humans, Middle Aged, Morpholines therapeutic use, Patient Selection, Recovery of Function, Surveys and Questionnaires, Time Factors, Treatment Outcome, Young Adult, Acupuncture Therapy, Constipation therapy, Research Design
- Abstract
Background: Whether acupuncture is effective for patients with functional constipation is still unclear. Therefore, we report the protocol of a randomized controlled trial of using acupuncture to treat functional constipation., Design: A randomized, controlled, four-arm design, large-scale trial is currently undergoing in China. Seven hundred participants are randomly assigned to three acupuncture treatment groups and Mosapride Citrate control group in a 1:1:1:1 ratio. Participants in acupuncture groups receive 16 sessions of acupuncture treatment, and are followed up for a period of 9 weeks after randomization. The acupuncture groups are: (1) Back-Shu and Front-Mu acupoints of Large Intestine meridians (Shu-Mu points group); (2) He-Sea and Lower He-Sea acupoints of Large Intestine meridians (He points group); (3) Combining used Back-Shu, Front-Mu, He-Sea, and Lower He-Sea acupoints of Large Intestine meridians (Shu-Mu-He points group). The control group is Mosapride Citrate group. The primary outcome is frequency of defecation per week at the fourth week after randomization. The secondary outcomes include Bristol stool scale, the extent of difficulty during defecating, MOS 36-item Short Form health survey (SF-36), Self-Rating Anxiety Scale (SAS), and Self-rating Depression Scale (SDS). The first two of second outcomes are measured 1 week before randomization and 2, 4, and 8 weeks after randomization. Other second outcomes are measured 1 week before randomization and 2 and 4 weeks after randomization, but SF-36 is measured at randomization and 4 weeks after randomization., Discussion: The result of this trial (which will be available in 2012) will confirm whether acupuncture is effective to treat functional constipation and whether traditional acupuncture theories play an important role in it., Trials Registration: Clinical Trials.gov NCT01411501.
- Published
- 2012
- Full Text
- View/download PDF
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